diff options
author | deshevoy <deshevoy@yandex-team.ru> | 2022-02-10 16:46:56 +0300 |
---|---|---|
committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:46:56 +0300 |
commit | e988f30484abe5fdeedcc7a5d3c226c01a21800c (patch) | |
tree | 0a217b173aabb57b7e51f8a169989b1a3e0309fe /contrib/libs/curl/lib/vauth | |
parent | 33ee501c05d3f24036ae89766a858930ae66c548 (diff) | |
download | ydb-e988f30484abe5fdeedcc7a5d3c226c01a21800c.tar.gz |
Restoring authorship annotation for <deshevoy@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/curl/lib/vauth')
-rw-r--r-- | contrib/libs/curl/lib/vauth/cleartext.c | 286 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/cram.c | 270 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/digest.c | 1910 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/digest.h | 90 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/digest_sspi.c | 1312 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/krb5_gssapi.c | 782 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/krb5_sspi.c | 1004 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/ntlm.c | 1670 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/ntlm.h | 282 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/ntlm_sspi.c | 654 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/oauth2.c | 154 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/spnego_gssapi.c | 540 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/spnego_sspi.c | 604 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/vauth.c | 246 | ||||
-rw-r--r-- | contrib/libs/curl/lib/vauth/vauth.h | 398 |
15 files changed, 5101 insertions, 5101 deletions
diff --git a/contrib/libs/curl/lib/vauth/cleartext.c b/contrib/libs/curl/lib/vauth/cleartext.c index 620dba03ef..3aecfe400c 100644 --- a/contrib/libs/curl/lib/vauth/cleartext.c +++ b/contrib/libs/curl/lib/vauth/cleartext.c @@ -1,170 +1,170 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC4616 PLAIN authentication - * Draft LOGIN SASL Mechanism <draft-murchison-sasl-login-00.txt> - * - ***************************************************************************/ - -#include "curl_setup.h" - + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC4616 PLAIN authentication + * Draft LOGIN SASL Mechanism <draft-murchison-sasl-login-00.txt> + * + ***************************************************************************/ + +#include "curl_setup.h" + #if !defined(CURL_DISABLE_IMAP) || !defined(CURL_DISABLE_SMTP) || \ !defined(CURL_DISABLE_POP3) -#include <curl/curl.h> -#include "urldata.h" - -#include "vauth/vauth.h" -#include "curl_base64.h" -#include "curl_md5.h" -#include "warnless.h" -#include "strtok.h" -#include "sendf.h" -#include "curl_printf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_create_plain_message() - * - * This is used to generate an already encoded PLAIN message ready - * for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. +#include <curl/curl.h> +#include "urldata.h" + +#include "vauth/vauth.h" +#include "curl_base64.h" +#include "curl_md5.h" +#include "warnless.h" +#include "strtok.h" +#include "sendf.h" +#include "curl_printf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_create_plain_message() + * + * This is used to generate an already encoded PLAIN message ready + * for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. * authzid [in] - The authorization identity. * authcid [in] - The authentication identity. * passwd [in] - The password. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_plain_message(struct Curl_easy *data, + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_plain_message(struct Curl_easy *data, const char *authzid, const char *authcid, const char *passwd, - char **outptr, size_t *outlen) -{ - CURLcode result; - char *plainauth; + char **outptr, size_t *outlen) +{ + CURLcode result; + char *plainauth; size_t zlen; size_t clen; - size_t plen; - size_t plainlen; - - *outlen = 0; - *outptr = NULL; + size_t plen; + size_t plainlen; + + *outlen = 0; + *outptr = NULL; zlen = (authzid == NULL ? 0 : strlen(authzid)); clen = strlen(authcid); plen = strlen(passwd); - - /* Compute binary message length. Check for overflows. */ + + /* Compute binary message length. Check for overflows. */ if((zlen > SIZE_T_MAX/4) || (clen > SIZE_T_MAX/4) || (plen > (SIZE_T_MAX/2 - 2))) - return CURLE_OUT_OF_MEMORY; + return CURLE_OUT_OF_MEMORY; plainlen = zlen + clen + plen + 2; - - plainauth = malloc(plainlen); - if(!plainauth) - return CURLE_OUT_OF_MEMORY; - - /* Calculate the reply */ + + plainauth = malloc(plainlen); + if(!plainauth) + return CURLE_OUT_OF_MEMORY; + + /* Calculate the reply */ if(zlen != 0) memcpy(plainauth, authzid, zlen); plainauth[zlen] = '\0'; memcpy(plainauth + zlen + 1, authcid, clen); plainauth[zlen + clen + 1] = '\0'; memcpy(plainauth + zlen + clen + 2, passwd, plen); - - /* Base64 encode the reply */ - result = Curl_base64_encode(data, plainauth, plainlen, outptr, outlen); - free(plainauth); - - return result; -} - -/* - * Curl_auth_create_login_message() - * - * This is used to generate an already encoded LOGIN message containing the - * user name or password ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * valuep [in] - The user name or user's password. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_login_message(struct Curl_easy *data, - const char *valuep, char **outptr, - size_t *outlen) -{ - size_t vlen = strlen(valuep); - - if(!vlen) { - /* Calculate an empty reply */ - *outptr = strdup("="); - if(*outptr) { - *outlen = (size_t) 1; - return CURLE_OK; - } - - *outlen = 0; - return CURLE_OUT_OF_MEMORY; - } - - /* Base64 encode the value */ - return Curl_base64_encode(data, valuep, vlen, outptr, outlen); -} - -/* - * Curl_auth_create_external_message() - * - * This is used to generate an already encoded EXTERNAL message containing - * the user name ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * user [in] - The user name. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_external_message(struct Curl_easy *data, - const char *user, char **outptr, - size_t *outlen) -{ - /* This is the same formatting as the login message */ - return Curl_auth_create_login_message(data, user, outptr, outlen); -} + + /* Base64 encode the reply */ + result = Curl_base64_encode(data, plainauth, plainlen, outptr, outlen); + free(plainauth); + + return result; +} + +/* + * Curl_auth_create_login_message() + * + * This is used to generate an already encoded LOGIN message containing the + * user name or password ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * valuep [in] - The user name or user's password. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_login_message(struct Curl_easy *data, + const char *valuep, char **outptr, + size_t *outlen) +{ + size_t vlen = strlen(valuep); + + if(!vlen) { + /* Calculate an empty reply */ + *outptr = strdup("="); + if(*outptr) { + *outlen = (size_t) 1; + return CURLE_OK; + } + + *outlen = 0; + return CURLE_OUT_OF_MEMORY; + } + + /* Base64 encode the value */ + return Curl_base64_encode(data, valuep, vlen, outptr, outlen); +} + +/* + * Curl_auth_create_external_message() + * + * This is used to generate an already encoded EXTERNAL message containing + * the user name ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * user [in] - The user name. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_external_message(struct Curl_easy *data, + const char *user, char **outptr, + size_t *outlen) +{ + /* This is the same formatting as the login message */ + return Curl_auth_create_login_message(data, user, outptr, outlen); +} #endif /* if no users */ diff --git a/contrib/libs/curl/lib/vauth/cram.c b/contrib/libs/curl/lib/vauth/cram.c index 1a376259a8..0d31bbef76 100644 --- a/contrib/libs/curl/lib/vauth/cram.c +++ b/contrib/libs/curl/lib/vauth/cram.c @@ -1,138 +1,138 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC2195 CRAM-MD5 authentication - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if !defined(CURL_DISABLE_CRYPTO_AUTH) - -#include <curl/curl.h> -#include "urldata.h" - -#include "vauth/vauth.h" -#include "curl_base64.h" -#include "curl_hmac.h" -#include "curl_md5.h" -#include "warnless.h" -#include "curl_printf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_decode_cram_md5_message() - * - * This is used to decode an already encoded CRAM-MD5 challenge message. - * - * Parameters: - * - * chlg64 [in] - The base64 encoded challenge message. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_decode_cram_md5_message(const char *chlg64, char **outptr, - size_t *outlen) -{ - CURLcode result = CURLE_OK; - size_t chlg64len = strlen(chlg64); - - *outptr = NULL; - *outlen = 0; - - /* Decode the challenge if necessary */ - if(chlg64len && *chlg64 != '=') - result = Curl_base64_decode(chlg64, (unsigned char **) outptr, outlen); - - return result; -} - -/* - * Curl_auth_create_cram_md5_message() - * - * This is used to generate an already encoded CRAM-MD5 response message ready - * for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * chlg [in] - The challenge. - * userp [in] - The user name. - * passwdp [in] - The user's password. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_cram_md5_message(struct Curl_easy *data, - const char *chlg, - const char *userp, - const char *passwdp, - char **outptr, size_t *outlen) -{ - CURLcode result = CURLE_OK; - size_t chlglen = 0; + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC2195 CRAM-MD5 authentication + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if !defined(CURL_DISABLE_CRYPTO_AUTH) + +#include <curl/curl.h> +#include "urldata.h" + +#include "vauth/vauth.h" +#include "curl_base64.h" +#include "curl_hmac.h" +#include "curl_md5.h" +#include "warnless.h" +#include "curl_printf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_decode_cram_md5_message() + * + * This is used to decode an already encoded CRAM-MD5 challenge message. + * + * Parameters: + * + * chlg64 [in] - The base64 encoded challenge message. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_decode_cram_md5_message(const char *chlg64, char **outptr, + size_t *outlen) +{ + CURLcode result = CURLE_OK; + size_t chlg64len = strlen(chlg64); + + *outptr = NULL; + *outlen = 0; + + /* Decode the challenge if necessary */ + if(chlg64len && *chlg64 != '=') + result = Curl_base64_decode(chlg64, (unsigned char **) outptr, outlen); + + return result; +} + +/* + * Curl_auth_create_cram_md5_message() + * + * This is used to generate an already encoded CRAM-MD5 response message ready + * for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * chlg [in] - The challenge. + * userp [in] - The user name. + * passwdp [in] - The user's password. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_cram_md5_message(struct Curl_easy *data, + const char *chlg, + const char *userp, + const char *passwdp, + char **outptr, size_t *outlen) +{ + CURLcode result = CURLE_OK; + size_t chlglen = 0; struct HMAC_context *ctxt; - unsigned char digest[MD5_DIGEST_LEN]; - char *response; - - if(chlg) - chlglen = strlen(chlg); - - /* Compute the digest using the password as the key */ - ctxt = Curl_HMAC_init(Curl_HMAC_MD5, - (const unsigned char *) passwdp, - curlx_uztoui(strlen(passwdp))); - if(!ctxt) - return CURLE_OUT_OF_MEMORY; - - /* Update the digest with the given challenge */ - if(chlglen > 0) - Curl_HMAC_update(ctxt, (const unsigned char *) chlg, - curlx_uztoui(chlglen)); - - /* Finalise the digest */ - Curl_HMAC_final(ctxt, digest); - - /* Generate the response */ - response = aprintf( - "%s %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", - userp, digest[0], digest[1], digest[2], digest[3], digest[4], - digest[5], digest[6], digest[7], digest[8], digest[9], digest[10], - digest[11], digest[12], digest[13], digest[14], digest[15]); - if(!response) - return CURLE_OUT_OF_MEMORY; - - /* Base64 encode the response */ - result = Curl_base64_encode(data, response, 0, outptr, outlen); - - free(response); - - return result; -} - -#endif /* !CURL_DISABLE_CRYPTO_AUTH */ + unsigned char digest[MD5_DIGEST_LEN]; + char *response; + + if(chlg) + chlglen = strlen(chlg); + + /* Compute the digest using the password as the key */ + ctxt = Curl_HMAC_init(Curl_HMAC_MD5, + (const unsigned char *) passwdp, + curlx_uztoui(strlen(passwdp))); + if(!ctxt) + return CURLE_OUT_OF_MEMORY; + + /* Update the digest with the given challenge */ + if(chlglen > 0) + Curl_HMAC_update(ctxt, (const unsigned char *) chlg, + curlx_uztoui(chlglen)); + + /* Finalise the digest */ + Curl_HMAC_final(ctxt, digest); + + /* Generate the response */ + response = aprintf( + "%s %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", + userp, digest[0], digest[1], digest[2], digest[3], digest[4], + digest[5], digest[6], digest[7], digest[8], digest[9], digest[10], + digest[11], digest[12], digest[13], digest[14], digest[15]); + if(!response) + return CURLE_OUT_OF_MEMORY; + + /* Base64 encode the response */ + result = Curl_base64_encode(data, response, 0, outptr, outlen); + + free(response); + + return result; +} + +#endif /* !CURL_DISABLE_CRYPTO_AUTH */ diff --git a/contrib/libs/curl/lib/vauth/digest.c b/contrib/libs/curl/lib/vauth/digest.c index 5fc9285263..b8d07c0ef7 100644 --- a/contrib/libs/curl/lib/vauth/digest.c +++ b/contrib/libs/curl/lib/vauth/digest.c @@ -1,997 +1,997 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC2831 DIGEST-MD5 authentication - * RFC7616 DIGEST-SHA256, DIGEST-SHA512-256 authentication - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if !defined(CURL_DISABLE_CRYPTO_AUTH) - -#include <curl/curl.h> - -#include "vauth/vauth.h" -#include "vauth/digest.h" -#include "urldata.h" -#include "curl_base64.h" -#include "curl_hmac.h" -#include "curl_md5.h" -#include "curl_sha256.h" -#include "vtls/vtls.h" -#include "warnless.h" -#include "strtok.h" -#include "strcase.h" -#include "non-ascii.h" /* included for Curl_convert_... prototypes */ -#include "curl_printf.h" -#include "rand.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -#if !defined(USE_WINDOWS_SSPI) -#define DIGEST_QOP_VALUE_AUTH (1 << 0) -#define DIGEST_QOP_VALUE_AUTH_INT (1 << 1) -#define DIGEST_QOP_VALUE_AUTH_CONF (1 << 2) - -#define DIGEST_QOP_VALUE_STRING_AUTH "auth" -#define DIGEST_QOP_VALUE_STRING_AUTH_INT "auth-int" -#define DIGEST_QOP_VALUE_STRING_AUTH_CONF "auth-conf" - -/* The CURL_OUTPUT_DIGEST_CONV macro below is for non-ASCII machines. - It converts digest text to ASCII so the MD5 will be correct for - what ultimately goes over the network. -*/ -#define CURL_OUTPUT_DIGEST_CONV(a, b) \ + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC2831 DIGEST-MD5 authentication + * RFC7616 DIGEST-SHA256, DIGEST-SHA512-256 authentication + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if !defined(CURL_DISABLE_CRYPTO_AUTH) + +#include <curl/curl.h> + +#include "vauth/vauth.h" +#include "vauth/digest.h" +#include "urldata.h" +#include "curl_base64.h" +#include "curl_hmac.h" +#include "curl_md5.h" +#include "curl_sha256.h" +#include "vtls/vtls.h" +#include "warnless.h" +#include "strtok.h" +#include "strcase.h" +#include "non-ascii.h" /* included for Curl_convert_... prototypes */ +#include "curl_printf.h" +#include "rand.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +#if !defined(USE_WINDOWS_SSPI) +#define DIGEST_QOP_VALUE_AUTH (1 << 0) +#define DIGEST_QOP_VALUE_AUTH_INT (1 << 1) +#define DIGEST_QOP_VALUE_AUTH_CONF (1 << 2) + +#define DIGEST_QOP_VALUE_STRING_AUTH "auth" +#define DIGEST_QOP_VALUE_STRING_AUTH_INT "auth-int" +#define DIGEST_QOP_VALUE_STRING_AUTH_CONF "auth-conf" + +/* The CURL_OUTPUT_DIGEST_CONV macro below is for non-ASCII machines. + It converts digest text to ASCII so the MD5 will be correct for + what ultimately goes over the network. +*/ +#define CURL_OUTPUT_DIGEST_CONV(a, b) \ result = Curl_convert_to_network(a, b, strlen(b)); \ - if(result) { \ - free(b); \ - return result; \ - } -#endif /* !USE_WINDOWS_SSPI */ - -bool Curl_auth_digest_get_pair(const char *str, char *value, char *content, - const char **endptr) -{ - int c; - bool starts_with_quote = FALSE; - bool escape = FALSE; - - for(c = DIGEST_MAX_VALUE_LENGTH - 1; (*str && (*str != '=') && c--);) - *value++ = *str++; - *value = 0; - - if('=' != *str++) - /* eek, no match */ - return FALSE; - - if('\"' == *str) { - /* This starts with a quote so it must end with one as well! */ - str++; - starts_with_quote = TRUE; - } - - for(c = DIGEST_MAX_CONTENT_LENGTH - 1; *str && c--; str++) { - switch(*str) { - case '\\': - if(!escape) { - /* possibly the start of an escaped quote */ - escape = TRUE; - *content++ = '\\'; /* Even though this is an escape character, we still - store it as-is in the target buffer */ - continue; - } - break; - - case ',': - if(!starts_with_quote) { - /* This signals the end of the content if we didn't get a starting - quote and then we do "sloppy" parsing */ - c = 0; /* the end */ - continue; - } - break; - - case '\r': - case '\n': - /* end of string */ - c = 0; - continue; - - case '\"': - if(!escape && starts_with_quote) { - /* end of string */ - c = 0; - continue; - } - break; - } - - escape = FALSE; - *content++ = *str; - } - - *content = 0; - *endptr = str; - - return TRUE; -} - -#if !defined(USE_WINDOWS_SSPI) -/* Convert md5 chunk to RFC2617 (section 3.1.3) -suitable ascii string*/ -static void auth_digest_md5_to_ascii(unsigned char *source, /* 16 bytes */ - unsigned char *dest) /* 33 bytes */ -{ - int i; - for(i = 0; i < 16; i++) - msnprintf((char *) &dest[i * 2], 3, "%02x", source[i]); -} - -/* Convert sha256 chunk to RFC7616 -suitable ascii string*/ -static void auth_digest_sha256_to_ascii(unsigned char *source, /* 32 bytes */ - unsigned char *dest) /* 65 bytes */ -{ - int i; - for(i = 0; i < 32; i++) - msnprintf((char *) &dest[i * 2], 3, "%02x", source[i]); -} - -/* Perform quoted-string escaping as described in RFC2616 and its errata */ -static char *auth_digest_string_quoted(const char *source) -{ - char *dest; - const char *s = source; - size_t n = 1; /* null terminator */ - - /* Calculate size needed */ - while(*s) { - ++n; - if(*s == '"' || *s == '\\') { - ++n; - } - ++s; - } - - dest = malloc(n); - if(dest) { - char *d = dest; - s = source; - while(*s) { - if(*s == '"' || *s == '\\') { - *d++ = '\\'; - } - *d++ = *s++; - } - *d = 0; - } - - return dest; -} - -/* Retrieves the value for a corresponding key from the challenge string - * returns TRUE if the key could be found, FALSE if it does not exists - */ -static bool auth_digest_get_key_value(const char *chlg, - const char *key, - char *value, - size_t max_val_len, - char end_char) -{ - char *find_pos; - size_t i; - - find_pos = strstr(chlg, key); - if(!find_pos) - return FALSE; - - find_pos += strlen(key); - - for(i = 0; *find_pos && *find_pos != end_char && i < max_val_len - 1; ++i) - value[i] = *find_pos++; - value[i] = '\0'; - - return TRUE; -} - -static CURLcode auth_digest_get_qop_values(const char *options, int *value) -{ - char *tmp; - char *token; - char *tok_buf = NULL; - - /* Initialise the output */ - *value = 0; - - /* Tokenise the list of qop values. Use a temporary clone of the buffer since - strtok_r() ruins it. */ - tmp = strdup(options); - if(!tmp) - return CURLE_OUT_OF_MEMORY; - - token = strtok_r(tmp, ",", &tok_buf); - while(token != NULL) { - if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH)) - *value |= DIGEST_QOP_VALUE_AUTH; - else if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH_INT)) - *value |= DIGEST_QOP_VALUE_AUTH_INT; - else if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH_CONF)) - *value |= DIGEST_QOP_VALUE_AUTH_CONF; - - token = strtok_r(NULL, ",", &tok_buf); - } - - free(tmp); - - return CURLE_OK; -} - -/* - * auth_decode_digest_md5_message() - * - * This is used internally to decode an already encoded DIGEST-MD5 challenge - * message into the separate attributes. - * - * Parameters: - * - * chlg64 [in] - The base64 encoded challenge message. - * nonce [in/out] - The buffer where the nonce will be stored. - * nlen [in] - The length of the nonce buffer. - * realm [in/out] - The buffer where the realm will be stored. - * rlen [in] - The length of the realm buffer. - * alg [in/out] - The buffer where the algorithm will be stored. - * alen [in] - The length of the algorithm buffer. - * qop [in/out] - The buffer where the qop-options will be stored. - * qlen [in] - The length of the qop buffer. - * - * Returns CURLE_OK on success. - */ -static CURLcode auth_decode_digest_md5_message(const char *chlg64, - char *nonce, size_t nlen, - char *realm, size_t rlen, - char *alg, size_t alen, - char *qop, size_t qlen) -{ - CURLcode result = CURLE_OK; - unsigned char *chlg = NULL; - size_t chlglen = 0; - size_t chlg64len = strlen(chlg64); - - /* Decode the base-64 encoded challenge message */ - if(chlg64len && *chlg64 != '=') { - result = Curl_base64_decode(chlg64, &chlg, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!chlg) - return CURLE_BAD_CONTENT_ENCODING; - - /* Retrieve nonce string from the challenge */ - if(!auth_digest_get_key_value((char *) chlg, "nonce=\"", nonce, nlen, - '\"')) { - free(chlg); - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Retrieve realm string from the challenge */ - if(!auth_digest_get_key_value((char *) chlg, "realm=\"", realm, rlen, - '\"')) { - /* Challenge does not have a realm, set empty string [RFC2831] page 6 */ - strcpy(realm, ""); - } - - /* Retrieve algorithm string from the challenge */ - if(!auth_digest_get_key_value((char *) chlg, "algorithm=", alg, alen, ',')) { - free(chlg); - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Retrieve qop-options string from the challenge */ - if(!auth_digest_get_key_value((char *) chlg, "qop=\"", qop, qlen, '\"')) { - free(chlg); - return CURLE_BAD_CONTENT_ENCODING; - } - - free(chlg); - - return CURLE_OK; -} - -/* - * Curl_auth_is_digest_supported() - * - * This is used to evaluate if DIGEST is supported. - * - * Parameters: None - * - * Returns TRUE as DIGEST as handled by libcurl. - */ -bool Curl_auth_is_digest_supported(void) -{ - return TRUE; -} - -/* - * Curl_auth_create_digest_md5_message() - * - * This is used to generate an already encoded DIGEST-MD5 response message - * ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * chlg64 [in] - The base64 encoded challenge message. - * userp [in] - The user name. - * passwdp [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data, - const char *chlg64, - const char *userp, - const char *passwdp, - const char *service, - char **outptr, size_t *outlen) -{ - size_t i; + if(result) { \ + free(b); \ + return result; \ + } +#endif /* !USE_WINDOWS_SSPI */ + +bool Curl_auth_digest_get_pair(const char *str, char *value, char *content, + const char **endptr) +{ + int c; + bool starts_with_quote = FALSE; + bool escape = FALSE; + + for(c = DIGEST_MAX_VALUE_LENGTH - 1; (*str && (*str != '=') && c--);) + *value++ = *str++; + *value = 0; + + if('=' != *str++) + /* eek, no match */ + return FALSE; + + if('\"' == *str) { + /* This starts with a quote so it must end with one as well! */ + str++; + starts_with_quote = TRUE; + } + + for(c = DIGEST_MAX_CONTENT_LENGTH - 1; *str && c--; str++) { + switch(*str) { + case '\\': + if(!escape) { + /* possibly the start of an escaped quote */ + escape = TRUE; + *content++ = '\\'; /* Even though this is an escape character, we still + store it as-is in the target buffer */ + continue; + } + break; + + case ',': + if(!starts_with_quote) { + /* This signals the end of the content if we didn't get a starting + quote and then we do "sloppy" parsing */ + c = 0; /* the end */ + continue; + } + break; + + case '\r': + case '\n': + /* end of string */ + c = 0; + continue; + + case '\"': + if(!escape && starts_with_quote) { + /* end of string */ + c = 0; + continue; + } + break; + } + + escape = FALSE; + *content++ = *str; + } + + *content = 0; + *endptr = str; + + return TRUE; +} + +#if !defined(USE_WINDOWS_SSPI) +/* Convert md5 chunk to RFC2617 (section 3.1.3) -suitable ascii string*/ +static void auth_digest_md5_to_ascii(unsigned char *source, /* 16 bytes */ + unsigned char *dest) /* 33 bytes */ +{ + int i; + for(i = 0; i < 16; i++) + msnprintf((char *) &dest[i * 2], 3, "%02x", source[i]); +} + +/* Convert sha256 chunk to RFC7616 -suitable ascii string*/ +static void auth_digest_sha256_to_ascii(unsigned char *source, /* 32 bytes */ + unsigned char *dest) /* 65 bytes */ +{ + int i; + for(i = 0; i < 32; i++) + msnprintf((char *) &dest[i * 2], 3, "%02x", source[i]); +} + +/* Perform quoted-string escaping as described in RFC2616 and its errata */ +static char *auth_digest_string_quoted(const char *source) +{ + char *dest; + const char *s = source; + size_t n = 1; /* null terminator */ + + /* Calculate size needed */ + while(*s) { + ++n; + if(*s == '"' || *s == '\\') { + ++n; + } + ++s; + } + + dest = malloc(n); + if(dest) { + char *d = dest; + s = source; + while(*s) { + if(*s == '"' || *s == '\\') { + *d++ = '\\'; + } + *d++ = *s++; + } + *d = 0; + } + + return dest; +} + +/* Retrieves the value for a corresponding key from the challenge string + * returns TRUE if the key could be found, FALSE if it does not exists + */ +static bool auth_digest_get_key_value(const char *chlg, + const char *key, + char *value, + size_t max_val_len, + char end_char) +{ + char *find_pos; + size_t i; + + find_pos = strstr(chlg, key); + if(!find_pos) + return FALSE; + + find_pos += strlen(key); + + for(i = 0; *find_pos && *find_pos != end_char && i < max_val_len - 1; ++i) + value[i] = *find_pos++; + value[i] = '\0'; + + return TRUE; +} + +static CURLcode auth_digest_get_qop_values(const char *options, int *value) +{ + char *tmp; + char *token; + char *tok_buf = NULL; + + /* Initialise the output */ + *value = 0; + + /* Tokenise the list of qop values. Use a temporary clone of the buffer since + strtok_r() ruins it. */ + tmp = strdup(options); + if(!tmp) + return CURLE_OUT_OF_MEMORY; + + token = strtok_r(tmp, ",", &tok_buf); + while(token != NULL) { + if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH)) + *value |= DIGEST_QOP_VALUE_AUTH; + else if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH_INT)) + *value |= DIGEST_QOP_VALUE_AUTH_INT; + else if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH_CONF)) + *value |= DIGEST_QOP_VALUE_AUTH_CONF; + + token = strtok_r(NULL, ",", &tok_buf); + } + + free(tmp); + + return CURLE_OK; +} + +/* + * auth_decode_digest_md5_message() + * + * This is used internally to decode an already encoded DIGEST-MD5 challenge + * message into the separate attributes. + * + * Parameters: + * + * chlg64 [in] - The base64 encoded challenge message. + * nonce [in/out] - The buffer where the nonce will be stored. + * nlen [in] - The length of the nonce buffer. + * realm [in/out] - The buffer where the realm will be stored. + * rlen [in] - The length of the realm buffer. + * alg [in/out] - The buffer where the algorithm will be stored. + * alen [in] - The length of the algorithm buffer. + * qop [in/out] - The buffer where the qop-options will be stored. + * qlen [in] - The length of the qop buffer. + * + * Returns CURLE_OK on success. + */ +static CURLcode auth_decode_digest_md5_message(const char *chlg64, + char *nonce, size_t nlen, + char *realm, size_t rlen, + char *alg, size_t alen, + char *qop, size_t qlen) +{ + CURLcode result = CURLE_OK; + unsigned char *chlg = NULL; + size_t chlglen = 0; + size_t chlg64len = strlen(chlg64); + + /* Decode the base-64 encoded challenge message */ + if(chlg64len && *chlg64 != '=') { + result = Curl_base64_decode(chlg64, &chlg, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!chlg) + return CURLE_BAD_CONTENT_ENCODING; + + /* Retrieve nonce string from the challenge */ + if(!auth_digest_get_key_value((char *) chlg, "nonce=\"", nonce, nlen, + '\"')) { + free(chlg); + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Retrieve realm string from the challenge */ + if(!auth_digest_get_key_value((char *) chlg, "realm=\"", realm, rlen, + '\"')) { + /* Challenge does not have a realm, set empty string [RFC2831] page 6 */ + strcpy(realm, ""); + } + + /* Retrieve algorithm string from the challenge */ + if(!auth_digest_get_key_value((char *) chlg, "algorithm=", alg, alen, ',')) { + free(chlg); + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Retrieve qop-options string from the challenge */ + if(!auth_digest_get_key_value((char *) chlg, "qop=\"", qop, qlen, '\"')) { + free(chlg); + return CURLE_BAD_CONTENT_ENCODING; + } + + free(chlg); + + return CURLE_OK; +} + +/* + * Curl_auth_is_digest_supported() + * + * This is used to evaluate if DIGEST is supported. + * + * Parameters: None + * + * Returns TRUE as DIGEST as handled by libcurl. + */ +bool Curl_auth_is_digest_supported(void) +{ + return TRUE; +} + +/* + * Curl_auth_create_digest_md5_message() + * + * This is used to generate an already encoded DIGEST-MD5 response message + * ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * chlg64 [in] - The base64 encoded challenge message. + * userp [in] - The user name. + * passwdp [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data, + const char *chlg64, + const char *userp, + const char *passwdp, + const char *service, + char **outptr, size_t *outlen) +{ + size_t i; struct MD5_context *ctxt; - char *response = NULL; - unsigned char digest[MD5_DIGEST_LEN]; - char HA1_hex[2 * MD5_DIGEST_LEN + 1]; - char HA2_hex[2 * MD5_DIGEST_LEN + 1]; - char resp_hash_hex[2 * MD5_DIGEST_LEN + 1]; - char nonce[64]; - char realm[128]; - char algorithm[64]; - char qop_options[64]; - int qop_values; - char cnonce[33]; - char nonceCount[] = "00000001"; - char method[] = "AUTHENTICATE"; - char qop[] = DIGEST_QOP_VALUE_STRING_AUTH; - char *spn = NULL; - - /* Decode the challenge message */ + char *response = NULL; + unsigned char digest[MD5_DIGEST_LEN]; + char HA1_hex[2 * MD5_DIGEST_LEN + 1]; + char HA2_hex[2 * MD5_DIGEST_LEN + 1]; + char resp_hash_hex[2 * MD5_DIGEST_LEN + 1]; + char nonce[64]; + char realm[128]; + char algorithm[64]; + char qop_options[64]; + int qop_values; + char cnonce[33]; + char nonceCount[] = "00000001"; + char method[] = "AUTHENTICATE"; + char qop[] = DIGEST_QOP_VALUE_STRING_AUTH; + char *spn = NULL; + + /* Decode the challenge message */ CURLcode result = auth_decode_digest_md5_message(chlg64, nonce, sizeof(nonce), realm, sizeof(realm), algorithm, sizeof(algorithm), qop_options, sizeof(qop_options)); - if(result) - return result; - - /* We only support md5 sessions */ - if(strcmp(algorithm, "md5-sess") != 0) - return CURLE_BAD_CONTENT_ENCODING; - - /* Get the qop-values from the qop-options */ - result = auth_digest_get_qop_values(qop_options, &qop_values); - if(result) - return result; - - /* We only support auth quality-of-protection */ - if(!(qop_values & DIGEST_QOP_VALUE_AUTH)) - return CURLE_BAD_CONTENT_ENCODING; - - /* Generate 32 random hex chars, 32 bytes + 1 zero termination */ - result = Curl_rand_hex(data, (unsigned char *)cnonce, sizeof(cnonce)); - if(result) - return result; - - /* So far so good, now calculate A1 and H(A1) according to RFC 2831 */ - ctxt = Curl_MD5_init(Curl_DIGEST_MD5); - if(!ctxt) - return CURLE_OUT_OF_MEMORY; - - Curl_MD5_update(ctxt, (const unsigned char *) userp, - curlx_uztoui(strlen(userp))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) realm, - curlx_uztoui(strlen(realm))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) passwdp, - curlx_uztoui(strlen(passwdp))); - Curl_MD5_final(ctxt, digest); - - ctxt = Curl_MD5_init(Curl_DIGEST_MD5); - if(!ctxt) - return CURLE_OUT_OF_MEMORY; - - Curl_MD5_update(ctxt, (const unsigned char *) digest, MD5_DIGEST_LEN); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) nonce, - curlx_uztoui(strlen(nonce))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) cnonce, - curlx_uztoui(strlen(cnonce))); - Curl_MD5_final(ctxt, digest); - - /* Convert calculated 16 octet hex into 32 bytes string */ - for(i = 0; i < MD5_DIGEST_LEN; i++) - msnprintf(&HA1_hex[2 * i], 3, "%02x", digest[i]); - - /* Generate our SPN */ - spn = Curl_auth_build_spn(service, realm, NULL); - if(!spn) - return CURLE_OUT_OF_MEMORY; - - /* Calculate H(A2) */ - ctxt = Curl_MD5_init(Curl_DIGEST_MD5); - if(!ctxt) { - free(spn); - - return CURLE_OUT_OF_MEMORY; - } - - Curl_MD5_update(ctxt, (const unsigned char *) method, - curlx_uztoui(strlen(method))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) spn, - curlx_uztoui(strlen(spn))); - Curl_MD5_final(ctxt, digest); - - for(i = 0; i < MD5_DIGEST_LEN; i++) - msnprintf(&HA2_hex[2 * i], 3, "%02x", digest[i]); - - /* Now calculate the response hash */ - ctxt = Curl_MD5_init(Curl_DIGEST_MD5); - if(!ctxt) { - free(spn); - - return CURLE_OUT_OF_MEMORY; - } - - Curl_MD5_update(ctxt, (const unsigned char *) HA1_hex, 2 * MD5_DIGEST_LEN); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) nonce, - curlx_uztoui(strlen(nonce))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - - Curl_MD5_update(ctxt, (const unsigned char *) nonceCount, - curlx_uztoui(strlen(nonceCount))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) cnonce, - curlx_uztoui(strlen(cnonce))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - Curl_MD5_update(ctxt, (const unsigned char *) qop, - curlx_uztoui(strlen(qop))); - Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); - - Curl_MD5_update(ctxt, (const unsigned char *) HA2_hex, 2 * MD5_DIGEST_LEN); - Curl_MD5_final(ctxt, digest); - - for(i = 0; i < MD5_DIGEST_LEN; i++) - msnprintf(&resp_hash_hex[2 * i], 3, "%02x", digest[i]); - - /* Generate the response */ - response = aprintf("username=\"%s\",realm=\"%s\",nonce=\"%s\"," - "cnonce=\"%s\",nc=\"%s\",digest-uri=\"%s\",response=%s," - "qop=%s", - userp, realm, nonce, - cnonce, nonceCount, spn, resp_hash_hex, qop); - free(spn); - if(!response) - return CURLE_OUT_OF_MEMORY; - - /* Base64 encode the response */ - result = Curl_base64_encode(data, response, 0, outptr, outlen); - - free(response); - - return result; -} - -/* - * Curl_auth_decode_digest_http_message() - * - * This is used to decode a HTTP DIGEST challenge message into the separate - * attributes. - * - * Parameters: - * - * chlg [in] - The challenge message. - * digest [in/out] - The digest data struct being used and modified. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_decode_digest_http_message(const char *chlg, - struct digestdata *digest) -{ - bool before = FALSE; /* got a nonce before */ - bool foundAuth = FALSE; - bool foundAuthInt = FALSE; - char *token = NULL; - char *tmp = NULL; - - /* If we already have received a nonce, keep that in mind */ - if(digest->nonce) - before = TRUE; - - /* Clean up any former leftovers and initialise to defaults */ - Curl_auth_digest_cleanup(digest); - - for(;;) { - char value[DIGEST_MAX_VALUE_LENGTH]; - char content[DIGEST_MAX_CONTENT_LENGTH]; - - /* Pass all additional spaces here */ - while(*chlg && ISSPACE(*chlg)) - chlg++; - - /* Extract a value=content pair */ - if(Curl_auth_digest_get_pair(chlg, value, content, &chlg)) { - if(strcasecompare(value, "nonce")) { - free(digest->nonce); - digest->nonce = strdup(content); - if(!digest->nonce) - return CURLE_OUT_OF_MEMORY; - } - else if(strcasecompare(value, "stale")) { - if(strcasecompare(content, "true")) { - digest->stale = TRUE; - digest->nc = 1; /* we make a new nonce now */ - } - } - else if(strcasecompare(value, "realm")) { - free(digest->realm); - digest->realm = strdup(content); - if(!digest->realm) - return CURLE_OUT_OF_MEMORY; - } - else if(strcasecompare(value, "opaque")) { - free(digest->opaque); - digest->opaque = strdup(content); - if(!digest->opaque) - return CURLE_OUT_OF_MEMORY; - } - else if(strcasecompare(value, "qop")) { - char *tok_buf = NULL; - /* Tokenize the list and choose auth if possible, use a temporary - clone of the buffer since strtok_r() ruins it */ - tmp = strdup(content); - if(!tmp) - return CURLE_OUT_OF_MEMORY; - - token = strtok_r(tmp, ",", &tok_buf); - while(token != NULL) { - if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH)) { - foundAuth = TRUE; - } - else if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH_INT)) { - foundAuthInt = TRUE; - } - token = strtok_r(NULL, ",", &tok_buf); - } - - free(tmp); - - /* Select only auth or auth-int. Otherwise, ignore */ - if(foundAuth) { - free(digest->qop); - digest->qop = strdup(DIGEST_QOP_VALUE_STRING_AUTH); - if(!digest->qop) - return CURLE_OUT_OF_MEMORY; - } - else if(foundAuthInt) { - free(digest->qop); - digest->qop = strdup(DIGEST_QOP_VALUE_STRING_AUTH_INT); - if(!digest->qop) - return CURLE_OUT_OF_MEMORY; - } - } - else if(strcasecompare(value, "algorithm")) { - free(digest->algorithm); - digest->algorithm = strdup(content); - if(!digest->algorithm) - return CURLE_OUT_OF_MEMORY; - - if(strcasecompare(content, "MD5-sess")) - digest->algo = CURLDIGESTALGO_MD5SESS; - else if(strcasecompare(content, "MD5")) - digest->algo = CURLDIGESTALGO_MD5; - else if(strcasecompare(content, "SHA-256")) - digest->algo = CURLDIGESTALGO_SHA256; - else if(strcasecompare(content, "SHA-256-SESS")) - digest->algo = CURLDIGESTALGO_SHA256SESS; - else if(strcasecompare(content, "SHA-512-256")) - digest->algo = CURLDIGESTALGO_SHA512_256; - else if(strcasecompare(content, "SHA-512-256-SESS")) - digest->algo = CURLDIGESTALGO_SHA512_256SESS; - else - return CURLE_BAD_CONTENT_ENCODING; - } - else if(strcasecompare(value, "userhash")) { - if(strcasecompare(content, "true")) { - digest->userhash = TRUE; - } - } - else { - /* Unknown specifier, ignore it! */ - } - } - else - break; /* We're done here */ - - /* Pass all additional spaces here */ - while(*chlg && ISSPACE(*chlg)) - chlg++; - - /* Allow the list to be comma-separated */ - if(',' == *chlg) - chlg++; - } - - /* We had a nonce since before, and we got another one now without - 'stale=true'. This means we provided bad credentials in the previous - request */ - if(before && !digest->stale) - return CURLE_BAD_CONTENT_ENCODING; - - /* We got this header without a nonce, that's a bad Digest line! */ - if(!digest->nonce) - return CURLE_BAD_CONTENT_ENCODING; - - return CURLE_OK; -} - -/* + if(result) + return result; + + /* We only support md5 sessions */ + if(strcmp(algorithm, "md5-sess") != 0) + return CURLE_BAD_CONTENT_ENCODING; + + /* Get the qop-values from the qop-options */ + result = auth_digest_get_qop_values(qop_options, &qop_values); + if(result) + return result; + + /* We only support auth quality-of-protection */ + if(!(qop_values & DIGEST_QOP_VALUE_AUTH)) + return CURLE_BAD_CONTENT_ENCODING; + + /* Generate 32 random hex chars, 32 bytes + 1 zero termination */ + result = Curl_rand_hex(data, (unsigned char *)cnonce, sizeof(cnonce)); + if(result) + return result; + + /* So far so good, now calculate A1 and H(A1) according to RFC 2831 */ + ctxt = Curl_MD5_init(Curl_DIGEST_MD5); + if(!ctxt) + return CURLE_OUT_OF_MEMORY; + + Curl_MD5_update(ctxt, (const unsigned char *) userp, + curlx_uztoui(strlen(userp))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) realm, + curlx_uztoui(strlen(realm))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) passwdp, + curlx_uztoui(strlen(passwdp))); + Curl_MD5_final(ctxt, digest); + + ctxt = Curl_MD5_init(Curl_DIGEST_MD5); + if(!ctxt) + return CURLE_OUT_OF_MEMORY; + + Curl_MD5_update(ctxt, (const unsigned char *) digest, MD5_DIGEST_LEN); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) nonce, + curlx_uztoui(strlen(nonce))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) cnonce, + curlx_uztoui(strlen(cnonce))); + Curl_MD5_final(ctxt, digest); + + /* Convert calculated 16 octet hex into 32 bytes string */ + for(i = 0; i < MD5_DIGEST_LEN; i++) + msnprintf(&HA1_hex[2 * i], 3, "%02x", digest[i]); + + /* Generate our SPN */ + spn = Curl_auth_build_spn(service, realm, NULL); + if(!spn) + return CURLE_OUT_OF_MEMORY; + + /* Calculate H(A2) */ + ctxt = Curl_MD5_init(Curl_DIGEST_MD5); + if(!ctxt) { + free(spn); + + return CURLE_OUT_OF_MEMORY; + } + + Curl_MD5_update(ctxt, (const unsigned char *) method, + curlx_uztoui(strlen(method))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) spn, + curlx_uztoui(strlen(spn))); + Curl_MD5_final(ctxt, digest); + + for(i = 0; i < MD5_DIGEST_LEN; i++) + msnprintf(&HA2_hex[2 * i], 3, "%02x", digest[i]); + + /* Now calculate the response hash */ + ctxt = Curl_MD5_init(Curl_DIGEST_MD5); + if(!ctxt) { + free(spn); + + return CURLE_OUT_OF_MEMORY; + } + + Curl_MD5_update(ctxt, (const unsigned char *) HA1_hex, 2 * MD5_DIGEST_LEN); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) nonce, + curlx_uztoui(strlen(nonce))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + + Curl_MD5_update(ctxt, (const unsigned char *) nonceCount, + curlx_uztoui(strlen(nonceCount))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) cnonce, + curlx_uztoui(strlen(cnonce))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + Curl_MD5_update(ctxt, (const unsigned char *) qop, + curlx_uztoui(strlen(qop))); + Curl_MD5_update(ctxt, (const unsigned char *) ":", 1); + + Curl_MD5_update(ctxt, (const unsigned char *) HA2_hex, 2 * MD5_DIGEST_LEN); + Curl_MD5_final(ctxt, digest); + + for(i = 0; i < MD5_DIGEST_LEN; i++) + msnprintf(&resp_hash_hex[2 * i], 3, "%02x", digest[i]); + + /* Generate the response */ + response = aprintf("username=\"%s\",realm=\"%s\",nonce=\"%s\"," + "cnonce=\"%s\",nc=\"%s\",digest-uri=\"%s\",response=%s," + "qop=%s", + userp, realm, nonce, + cnonce, nonceCount, spn, resp_hash_hex, qop); + free(spn); + if(!response) + return CURLE_OUT_OF_MEMORY; + + /* Base64 encode the response */ + result = Curl_base64_encode(data, response, 0, outptr, outlen); + + free(response); + + return result; +} + +/* + * Curl_auth_decode_digest_http_message() + * + * This is used to decode a HTTP DIGEST challenge message into the separate + * attributes. + * + * Parameters: + * + * chlg [in] - The challenge message. + * digest [in/out] - The digest data struct being used and modified. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_decode_digest_http_message(const char *chlg, + struct digestdata *digest) +{ + bool before = FALSE; /* got a nonce before */ + bool foundAuth = FALSE; + bool foundAuthInt = FALSE; + char *token = NULL; + char *tmp = NULL; + + /* If we already have received a nonce, keep that in mind */ + if(digest->nonce) + before = TRUE; + + /* Clean up any former leftovers and initialise to defaults */ + Curl_auth_digest_cleanup(digest); + + for(;;) { + char value[DIGEST_MAX_VALUE_LENGTH]; + char content[DIGEST_MAX_CONTENT_LENGTH]; + + /* Pass all additional spaces here */ + while(*chlg && ISSPACE(*chlg)) + chlg++; + + /* Extract a value=content pair */ + if(Curl_auth_digest_get_pair(chlg, value, content, &chlg)) { + if(strcasecompare(value, "nonce")) { + free(digest->nonce); + digest->nonce = strdup(content); + if(!digest->nonce) + return CURLE_OUT_OF_MEMORY; + } + else if(strcasecompare(value, "stale")) { + if(strcasecompare(content, "true")) { + digest->stale = TRUE; + digest->nc = 1; /* we make a new nonce now */ + } + } + else if(strcasecompare(value, "realm")) { + free(digest->realm); + digest->realm = strdup(content); + if(!digest->realm) + return CURLE_OUT_OF_MEMORY; + } + else if(strcasecompare(value, "opaque")) { + free(digest->opaque); + digest->opaque = strdup(content); + if(!digest->opaque) + return CURLE_OUT_OF_MEMORY; + } + else if(strcasecompare(value, "qop")) { + char *tok_buf = NULL; + /* Tokenize the list and choose auth if possible, use a temporary + clone of the buffer since strtok_r() ruins it */ + tmp = strdup(content); + if(!tmp) + return CURLE_OUT_OF_MEMORY; + + token = strtok_r(tmp, ",", &tok_buf); + while(token != NULL) { + if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH)) { + foundAuth = TRUE; + } + else if(strcasecompare(token, DIGEST_QOP_VALUE_STRING_AUTH_INT)) { + foundAuthInt = TRUE; + } + token = strtok_r(NULL, ",", &tok_buf); + } + + free(tmp); + + /* Select only auth or auth-int. Otherwise, ignore */ + if(foundAuth) { + free(digest->qop); + digest->qop = strdup(DIGEST_QOP_VALUE_STRING_AUTH); + if(!digest->qop) + return CURLE_OUT_OF_MEMORY; + } + else if(foundAuthInt) { + free(digest->qop); + digest->qop = strdup(DIGEST_QOP_VALUE_STRING_AUTH_INT); + if(!digest->qop) + return CURLE_OUT_OF_MEMORY; + } + } + else if(strcasecompare(value, "algorithm")) { + free(digest->algorithm); + digest->algorithm = strdup(content); + if(!digest->algorithm) + return CURLE_OUT_OF_MEMORY; + + if(strcasecompare(content, "MD5-sess")) + digest->algo = CURLDIGESTALGO_MD5SESS; + else if(strcasecompare(content, "MD5")) + digest->algo = CURLDIGESTALGO_MD5; + else if(strcasecompare(content, "SHA-256")) + digest->algo = CURLDIGESTALGO_SHA256; + else if(strcasecompare(content, "SHA-256-SESS")) + digest->algo = CURLDIGESTALGO_SHA256SESS; + else if(strcasecompare(content, "SHA-512-256")) + digest->algo = CURLDIGESTALGO_SHA512_256; + else if(strcasecompare(content, "SHA-512-256-SESS")) + digest->algo = CURLDIGESTALGO_SHA512_256SESS; + else + return CURLE_BAD_CONTENT_ENCODING; + } + else if(strcasecompare(value, "userhash")) { + if(strcasecompare(content, "true")) { + digest->userhash = TRUE; + } + } + else { + /* Unknown specifier, ignore it! */ + } + } + else + break; /* We're done here */ + + /* Pass all additional spaces here */ + while(*chlg && ISSPACE(*chlg)) + chlg++; + + /* Allow the list to be comma-separated */ + if(',' == *chlg) + chlg++; + } + + /* We had a nonce since before, and we got another one now without + 'stale=true'. This means we provided bad credentials in the previous + request */ + if(before && !digest->stale) + return CURLE_BAD_CONTENT_ENCODING; + + /* We got this header without a nonce, that's a bad Digest line! */ + if(!digest->nonce) + return CURLE_BAD_CONTENT_ENCODING; + + return CURLE_OK; +} + +/* * auth_create_digest_http_message() - * - * This is used to generate a HTTP DIGEST response message ready for sending - * to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name. - * passwdp [in] - The user's password. - * request [in] - The HTTP request. - * uripath [in] - The path of the HTTP uri. - * digest [in/out] - The digest data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ + * + * This is used to generate a HTTP DIGEST response message ready for sending + * to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name. + * passwdp [in] - The user's password. + * request [in] - The HTTP request. + * uripath [in] - The path of the HTTP uri. + * digest [in/out] - The digest data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ static CURLcode auth_create_digest_http_message( - struct Curl_easy *data, - const char *userp, - const char *passwdp, - const unsigned char *request, - const unsigned char *uripath, - struct digestdata *digest, - char **outptr, size_t *outlen, - void (*convert_to_ascii)(unsigned char *, unsigned char *), + struct Curl_easy *data, + const char *userp, + const char *passwdp, + const unsigned char *request, + const unsigned char *uripath, + struct digestdata *digest, + char **outptr, size_t *outlen, + void (*convert_to_ascii)(unsigned char *, unsigned char *), void (*hash)(unsigned char *, const unsigned char *, const size_t)) -{ - CURLcode result; - unsigned char hashbuf[32]; /* 32 bytes/256 bits */ - unsigned char request_digest[65]; - unsigned char ha1[65]; /* 64 digits and 1 zero byte */ - unsigned char ha2[65]; /* 64 digits and 1 zero byte */ - char userh[65]; - char *cnonce = NULL; - size_t cnonce_sz = 0; - char *userp_quoted; - char *response = NULL; +{ + CURLcode result; + unsigned char hashbuf[32]; /* 32 bytes/256 bits */ + unsigned char request_digest[65]; + unsigned char ha1[65]; /* 64 digits and 1 zero byte */ + unsigned char ha2[65]; /* 64 digits and 1 zero byte */ + char userh[65]; + char *cnonce = NULL; + size_t cnonce_sz = 0; + char *userp_quoted; + char *response = NULL; char *hashthis = NULL; - char *tmp = NULL; - - if(!digest->nc) - digest->nc = 1; - - if(!digest->cnonce) { - char cnoncebuf[33]; - result = Curl_rand_hex(data, (unsigned char *)cnoncebuf, - sizeof(cnoncebuf)); - if(result) - return result; - - result = Curl_base64_encode(data, cnoncebuf, strlen(cnoncebuf), - &cnonce, &cnonce_sz); - if(result) - return result; - - digest->cnonce = cnonce; - } - - if(digest->userhash) { + char *tmp = NULL; + + if(!digest->nc) + digest->nc = 1; + + if(!digest->cnonce) { + char cnoncebuf[33]; + result = Curl_rand_hex(data, (unsigned char *)cnoncebuf, + sizeof(cnoncebuf)); + if(result) + return result; + + result = Curl_base64_encode(data, cnoncebuf, strlen(cnoncebuf), + &cnonce, &cnonce_sz); + if(result) + return result; + + digest->cnonce = cnonce; + } + + if(digest->userhash) { hashthis = aprintf("%s:%s", userp, digest->realm); - if(!hashthis) - return CURLE_OUT_OF_MEMORY; - - CURL_OUTPUT_DIGEST_CONV(data, hashthis); + if(!hashthis) + return CURLE_OUT_OF_MEMORY; + + CURL_OUTPUT_DIGEST_CONV(data, hashthis); hash(hashbuf, (unsigned char *) hashthis, strlen(hashthis)); - free(hashthis); - convert_to_ascii(hashbuf, (unsigned char *)userh); - } - - /* - If the algorithm is "MD5" or unspecified (which then defaults to MD5): - - A1 = unq(username-value) ":" unq(realm-value) ":" passwd - - If the algorithm is "MD5-sess" then: - - A1 = H(unq(username-value) ":" unq(realm-value) ":" passwd) ":" - unq(nonce-value) ":" unq(cnonce-value) - */ - + free(hashthis); + convert_to_ascii(hashbuf, (unsigned char *)userh); + } + + /* + If the algorithm is "MD5" or unspecified (which then defaults to MD5): + + A1 = unq(username-value) ":" unq(realm-value) ":" passwd + + If the algorithm is "MD5-sess" then: + + A1 = H(unq(username-value) ":" unq(realm-value) ":" passwd) ":" + unq(nonce-value) ":" unq(cnonce-value) + */ + hashthis = aprintf("%s:%s:%s", digest->userhash ? userh : userp, digest->realm, passwdp); - if(!hashthis) - return CURLE_OUT_OF_MEMORY; - - CURL_OUTPUT_DIGEST_CONV(data, hashthis); /* convert on non-ASCII machines */ + if(!hashthis) + return CURLE_OUT_OF_MEMORY; + + CURL_OUTPUT_DIGEST_CONV(data, hashthis); /* convert on non-ASCII machines */ hash(hashbuf, (unsigned char *) hashthis, strlen(hashthis)); - free(hashthis); - convert_to_ascii(hashbuf, ha1); - - if(digest->algo == CURLDIGESTALGO_MD5SESS || - digest->algo == CURLDIGESTALGO_SHA256SESS || - digest->algo == CURLDIGESTALGO_SHA512_256SESS) { - /* nonce and cnonce are OUTSIDE the hash */ - tmp = aprintf("%s:%s:%s", ha1, digest->nonce, digest->cnonce); - if(!tmp) - return CURLE_OUT_OF_MEMORY; - - CURL_OUTPUT_DIGEST_CONV(data, tmp); /* Convert on non-ASCII machines */ + free(hashthis); + convert_to_ascii(hashbuf, ha1); + + if(digest->algo == CURLDIGESTALGO_MD5SESS || + digest->algo == CURLDIGESTALGO_SHA256SESS || + digest->algo == CURLDIGESTALGO_SHA512_256SESS) { + /* nonce and cnonce are OUTSIDE the hash */ + tmp = aprintf("%s:%s:%s", ha1, digest->nonce, digest->cnonce); + if(!tmp) + return CURLE_OUT_OF_MEMORY; + + CURL_OUTPUT_DIGEST_CONV(data, tmp); /* Convert on non-ASCII machines */ hash(hashbuf, (unsigned char *) tmp, strlen(tmp)); - free(tmp); - convert_to_ascii(hashbuf, ha1); - } - - /* - If the "qop" directive's value is "auth" or is unspecified, then A2 is: - - A2 = Method ":" digest-uri-value - - If the "qop" value is "auth-int", then A2 is: - - A2 = Method ":" digest-uri-value ":" H(entity-body) - - (The "Method" value is the HTTP request method as specified in section - 5.1.1 of RFC 2616) - */ - + free(tmp); + convert_to_ascii(hashbuf, ha1); + } + + /* + If the "qop" directive's value is "auth" or is unspecified, then A2 is: + + A2 = Method ":" digest-uri-value + + If the "qop" value is "auth-int", then A2 is: + + A2 = Method ":" digest-uri-value ":" H(entity-body) + + (The "Method" value is the HTTP request method as specified in section + 5.1.1 of RFC 2616) + */ + hashthis = aprintf("%s:%s", request, uripath); - if(!hashthis) - return CURLE_OUT_OF_MEMORY; - - if(digest->qop && strcasecompare(digest->qop, "auth-int")) { + if(!hashthis) + return CURLE_OUT_OF_MEMORY; + + if(digest->qop && strcasecompare(digest->qop, "auth-int")) { /* We don't support auth-int for PUT or POST */ - char hashed[65]; + char hashed[65]; char *hashthis2; - + hash(hashbuf, (const unsigned char *)"", 0); - convert_to_ascii(hashbuf, (unsigned char *)hashed); - + convert_to_ascii(hashbuf, (unsigned char *)hashed); + hashthis2 = aprintf("%s:%s", hashthis, hashed); - free(hashthis); - hashthis = hashthis2; - } - - if(!hashthis) - return CURLE_OUT_OF_MEMORY; - - CURL_OUTPUT_DIGEST_CONV(data, hashthis); /* convert on non-ASCII machines */ + free(hashthis); + hashthis = hashthis2; + } + + if(!hashthis) + return CURLE_OUT_OF_MEMORY; + + CURL_OUTPUT_DIGEST_CONV(data, hashthis); /* convert on non-ASCII machines */ hash(hashbuf, (unsigned char *) hashthis, strlen(hashthis)); - free(hashthis); - convert_to_ascii(hashbuf, ha2); - - if(digest->qop) { + free(hashthis); + convert_to_ascii(hashbuf, ha2); + + if(digest->qop) { hashthis = aprintf("%s:%s:%08x:%s:%s:%s", ha1, digest->nonce, digest->nc, digest->cnonce, digest->qop, ha2); - } - else { + } + else { hashthis = aprintf("%s:%s:%s", ha1, digest->nonce, ha2); - } - - if(!hashthis) - return CURLE_OUT_OF_MEMORY; - - CURL_OUTPUT_DIGEST_CONV(data, hashthis); /* convert on non-ASCII machines */ + } + + if(!hashthis) + return CURLE_OUT_OF_MEMORY; + + CURL_OUTPUT_DIGEST_CONV(data, hashthis); /* convert on non-ASCII machines */ hash(hashbuf, (unsigned char *) hashthis, strlen(hashthis)); - free(hashthis); - convert_to_ascii(hashbuf, request_digest); - - /* For test case 64 (snooped from a Mozilla 1.3a request) - - Authorization: Digest username="testuser", realm="testrealm", \ - nonce="1053604145", uri="/64", response="c55f7f30d83d774a3d2dcacf725abaca" - - Digest parameters are all quoted strings. Username which is provided by - the user will need double quotes and backslashes within it escaped. For - the other fields, this shouldn't be an issue. realm, nonce, and opaque - are copied as is from the server, escapes and all. cnonce is generated - with web-safe characters. uri is already percent encoded. nc is 8 hex - characters. algorithm and qop with standard values only contain web-safe - characters. - */ - userp_quoted = auth_digest_string_quoted(digest->userhash ? userh : userp); - if(!userp_quoted) - return CURLE_OUT_OF_MEMORY; - - if(digest->qop) { - response = aprintf("username=\"%s\", " - "realm=\"%s\", " - "nonce=\"%s\", " - "uri=\"%s\", " - "cnonce=\"%s\", " - "nc=%08x, " - "qop=%s, " - "response=\"%s\"", - userp_quoted, - digest->realm, - digest->nonce, - uripath, - digest->cnonce, - digest->nc, - digest->qop, - request_digest); - - if(strcasecompare(digest->qop, "auth")) - digest->nc++; /* The nc (from RFC) has to be a 8 hex digit number 0 - padded which tells to the server how many times you are - using the same nonce in the qop=auth mode */ - } - else { - response = aprintf("username=\"%s\", " - "realm=\"%s\", " - "nonce=\"%s\", " - "uri=\"%s\", " - "response=\"%s\"", - userp_quoted, - digest->realm, - digest->nonce, - uripath, - request_digest); - } - free(userp_quoted); - if(!response) - return CURLE_OUT_OF_MEMORY; - - /* Add the optional fields */ - if(digest->opaque) { - /* Append the opaque */ - tmp = aprintf("%s, opaque=\"%s\"", response, digest->opaque); - free(response); - if(!tmp) - return CURLE_OUT_OF_MEMORY; - - response = tmp; - } - - if(digest->algorithm) { - /* Append the algorithm */ + free(hashthis); + convert_to_ascii(hashbuf, request_digest); + + /* For test case 64 (snooped from a Mozilla 1.3a request) + + Authorization: Digest username="testuser", realm="testrealm", \ + nonce="1053604145", uri="/64", response="c55f7f30d83d774a3d2dcacf725abaca" + + Digest parameters are all quoted strings. Username which is provided by + the user will need double quotes and backslashes within it escaped. For + the other fields, this shouldn't be an issue. realm, nonce, and opaque + are copied as is from the server, escapes and all. cnonce is generated + with web-safe characters. uri is already percent encoded. nc is 8 hex + characters. algorithm and qop with standard values only contain web-safe + characters. + */ + userp_quoted = auth_digest_string_quoted(digest->userhash ? userh : userp); + if(!userp_quoted) + return CURLE_OUT_OF_MEMORY; + + if(digest->qop) { + response = aprintf("username=\"%s\", " + "realm=\"%s\", " + "nonce=\"%s\", " + "uri=\"%s\", " + "cnonce=\"%s\", " + "nc=%08x, " + "qop=%s, " + "response=\"%s\"", + userp_quoted, + digest->realm, + digest->nonce, + uripath, + digest->cnonce, + digest->nc, + digest->qop, + request_digest); + + if(strcasecompare(digest->qop, "auth")) + digest->nc++; /* The nc (from RFC) has to be a 8 hex digit number 0 + padded which tells to the server how many times you are + using the same nonce in the qop=auth mode */ + } + else { + response = aprintf("username=\"%s\", " + "realm=\"%s\", " + "nonce=\"%s\", " + "uri=\"%s\", " + "response=\"%s\"", + userp_quoted, + digest->realm, + digest->nonce, + uripath, + request_digest); + } + free(userp_quoted); + if(!response) + return CURLE_OUT_OF_MEMORY; + + /* Add the optional fields */ + if(digest->opaque) { + /* Append the opaque */ + tmp = aprintf("%s, opaque=\"%s\"", response, digest->opaque); + free(response); + if(!tmp) + return CURLE_OUT_OF_MEMORY; + + response = tmp; + } + + if(digest->algorithm) { + /* Append the algorithm */ tmp = aprintf("%s, algorithm=%s", response, digest->algorithm); - free(response); - if(!tmp) - return CURLE_OUT_OF_MEMORY; - - response = tmp; - } - - if(digest->userhash) { - /* Append the userhash */ - tmp = aprintf("%s, userhash=true", response); - free(response); - if(!tmp) - return CURLE_OUT_OF_MEMORY; - - response = tmp; - } - - /* Return the output */ - *outptr = response; - *outlen = strlen(response); - - return CURLE_OK; -} - -/* - * Curl_auth_create_digest_http_message() - * - * This is used to generate a HTTP DIGEST response message ready for sending - * to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name. - * passwdp [in] - The user's password. - * request [in] - The HTTP request. - * uripath [in] - The path of the HTTP uri. - * digest [in/out] - The digest data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const unsigned char *request, - const unsigned char *uripath, - struct digestdata *digest, - char **outptr, size_t *outlen) -{ - switch(digest->algo) { - case CURLDIGESTALGO_MD5: - case CURLDIGESTALGO_MD5SESS: + free(response); + if(!tmp) + return CURLE_OUT_OF_MEMORY; + + response = tmp; + } + + if(digest->userhash) { + /* Append the userhash */ + tmp = aprintf("%s, userhash=true", response); + free(response); + if(!tmp) + return CURLE_OUT_OF_MEMORY; + + response = tmp; + } + + /* Return the output */ + *outptr = response; + *outlen = strlen(response); + + return CURLE_OK; +} + +/* + * Curl_auth_create_digest_http_message() + * + * This is used to generate a HTTP DIGEST response message ready for sending + * to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name. + * passwdp [in] - The user's password. + * request [in] - The HTTP request. + * uripath [in] - The path of the HTTP uri. + * digest [in/out] - The digest data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const unsigned char *request, + const unsigned char *uripath, + struct digestdata *digest, + char **outptr, size_t *outlen) +{ + switch(digest->algo) { + case CURLDIGESTALGO_MD5: + case CURLDIGESTALGO_MD5SESS: return auth_create_digest_http_message(data, userp, passwdp, request, uripath, digest, outptr, outlen, auth_digest_md5_to_ascii, Curl_md5it); - - case CURLDIGESTALGO_SHA256: - case CURLDIGESTALGO_SHA256SESS: - case CURLDIGESTALGO_SHA512_256: - case CURLDIGESTALGO_SHA512_256SESS: + + case CURLDIGESTALGO_SHA256: + case CURLDIGESTALGO_SHA256SESS: + case CURLDIGESTALGO_SHA512_256: + case CURLDIGESTALGO_SHA512_256SESS: return auth_create_digest_http_message(data, userp, passwdp, request, uripath, digest, outptr, outlen, auth_digest_sha256_to_ascii, Curl_sha256it); - - default: - return CURLE_UNSUPPORTED_PROTOCOL; - } -} - -/* - * Curl_auth_digest_cleanup() - * - * This is used to clean up the digest specific data. - * - * Parameters: - * - * digest [in/out] - The digest data struct being cleaned up. - * - */ -void Curl_auth_digest_cleanup(struct digestdata *digest) -{ - Curl_safefree(digest->nonce); - Curl_safefree(digest->cnonce); - Curl_safefree(digest->realm); - Curl_safefree(digest->opaque); - Curl_safefree(digest->qop); - Curl_safefree(digest->algorithm); - - digest->nc = 0; - digest->algo = CURLDIGESTALGO_MD5; /* default algorithm */ - digest->stale = FALSE; /* default means normal, not stale */ - digest->userhash = FALSE; -} -#endif /* !USE_WINDOWS_SSPI */ - -#endif /* CURL_DISABLE_CRYPTO_AUTH */ + + default: + return CURLE_UNSUPPORTED_PROTOCOL; + } +} + +/* + * Curl_auth_digest_cleanup() + * + * This is used to clean up the digest specific data. + * + * Parameters: + * + * digest [in/out] - The digest data struct being cleaned up. + * + */ +void Curl_auth_digest_cleanup(struct digestdata *digest) +{ + Curl_safefree(digest->nonce); + Curl_safefree(digest->cnonce); + Curl_safefree(digest->realm); + Curl_safefree(digest->opaque); + Curl_safefree(digest->qop); + Curl_safefree(digest->algorithm); + + digest->nc = 0; + digest->algo = CURLDIGESTALGO_MD5; /* default algorithm */ + digest->stale = FALSE; /* default means normal, not stale */ + digest->userhash = FALSE; +} +#endif /* !USE_WINDOWS_SSPI */ + +#endif /* CURL_DISABLE_CRYPTO_AUTH */ diff --git a/contrib/libs/curl/lib/vauth/digest.h b/contrib/libs/curl/lib/vauth/digest.h index ee373cd82e..a9d888114f 100644 --- a/contrib/libs/curl/lib/vauth/digest.h +++ b/contrib/libs/curl/lib/vauth/digest.h @@ -1,47 +1,47 @@ -#ifndef HEADER_CURL_DIGEST_H -#define HEADER_CURL_DIGEST_H -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +#ifndef HEADER_CURL_DIGEST_H +#define HEADER_CURL_DIGEST_H +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include <curl/curl.h> - -#if !defined(CURL_DISABLE_CRYPTO_AUTH) - -#define DIGEST_MAX_VALUE_LENGTH 256 -#define DIGEST_MAX_CONTENT_LENGTH 1024 - -enum { - CURLDIGESTALGO_MD5, - CURLDIGESTALGO_MD5SESS, - CURLDIGESTALGO_SHA256, - CURLDIGESTALGO_SHA256SESS, - CURLDIGESTALGO_SHA512_256, - CURLDIGESTALGO_SHA512_256SESS -}; - -/* This is used to extract the realm from a challenge message */ -bool Curl_auth_digest_get_pair(const char *str, char *value, char *content, - const char **endptr); - -#endif - -#endif /* HEADER_CURL_DIGEST_H */ + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include <curl/curl.h> + +#if !defined(CURL_DISABLE_CRYPTO_AUTH) + +#define DIGEST_MAX_VALUE_LENGTH 256 +#define DIGEST_MAX_CONTENT_LENGTH 1024 + +enum { + CURLDIGESTALGO_MD5, + CURLDIGESTALGO_MD5SESS, + CURLDIGESTALGO_SHA256, + CURLDIGESTALGO_SHA256SESS, + CURLDIGESTALGO_SHA512_256, + CURLDIGESTALGO_SHA512_256SESS +}; + +/* This is used to extract the realm from a challenge message */ +bool Curl_auth_digest_get_pair(const char *str, char *value, char *content, + const char **endptr); + +#endif + +#endif /* HEADER_CURL_DIGEST_H */ diff --git a/contrib/libs/curl/lib/vauth/digest_sspi.c b/contrib/libs/curl/lib/vauth/digest_sspi.c index 91d18c992b..c10b4c727b 100644 --- a/contrib/libs/curl/lib/vauth/digest_sspi.c +++ b/contrib/libs/curl/lib/vauth/digest_sspi.c @@ -1,683 +1,683 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 2014 - 2016, Steve Holme, <steve_holme@hotmail.com>. +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 2014 - 2016, Steve Holme, <steve_holme@hotmail.com>. * Copyright (C) 2015 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC2831 DIGEST-MD5 authentication - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if defined(USE_WINDOWS_SSPI) && !defined(CURL_DISABLE_CRYPTO_AUTH) - -#include <curl/curl.h> - -#include "vauth/vauth.h" -#include "vauth/digest.h" -#include "urldata.h" -#include "curl_base64.h" -#include "warnless.h" -#include "curl_multibyte.h" -#include "sendf.h" -#include "strdup.h" -#include "strcase.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* -* Curl_auth_is_digest_supported() -* -* This is used to evaluate if DIGEST is supported. -* -* Parameters: None -* -* Returns TRUE if DIGEST is supported by Windows SSPI. -*/ -bool Curl_auth_is_digest_supported(void) -{ - PSecPkgInfo SecurityPackage; - SECURITY_STATUS status; - - /* Query the security package for Digest */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_DIGEST), - &SecurityPackage); - + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC2831 DIGEST-MD5 authentication + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(USE_WINDOWS_SSPI) && !defined(CURL_DISABLE_CRYPTO_AUTH) + +#include <curl/curl.h> + +#include "vauth/vauth.h" +#include "vauth/digest.h" +#include "urldata.h" +#include "curl_base64.h" +#include "warnless.h" +#include "curl_multibyte.h" +#include "sendf.h" +#include "strdup.h" +#include "strcase.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* +* Curl_auth_is_digest_supported() +* +* This is used to evaluate if DIGEST is supported. +* +* Parameters: None +* +* Returns TRUE if DIGEST is supported by Windows SSPI. +*/ +bool Curl_auth_is_digest_supported(void) +{ + PSecPkgInfo SecurityPackage; + SECURITY_STATUS status; + + /* Query the security package for Digest */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_DIGEST), + &SecurityPackage); + /* Release the package buffer as it is not required anymore */ if(status == SEC_E_OK) { s_pSecFn->FreeContextBuffer(SecurityPackage); } - return (status == SEC_E_OK ? TRUE : FALSE); -} - -/* - * Curl_auth_create_digest_md5_message() - * - * This is used to generate an already encoded DIGEST-MD5 response message - * ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * chlg64 [in] - The base64 encoded challenge message. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data, - const char *chlg64, - const char *userp, - const char *passwdp, - const char *service, - char **outptr, size_t *outlen) -{ - CURLcode result = CURLE_OK; - TCHAR *spn = NULL; - size_t chlglen = 0; - size_t token_max = 0; - unsigned char *input_token = NULL; - unsigned char *output_token = NULL; - CredHandle credentials; - CtxtHandle context; - PSecPkgInfo SecurityPackage; - SEC_WINNT_AUTH_IDENTITY identity; - SEC_WINNT_AUTH_IDENTITY *p_identity; - SecBuffer chlg_buf; - SecBuffer resp_buf; - SecBufferDesc chlg_desc; - SecBufferDesc resp_desc; - SECURITY_STATUS status; - unsigned long attrs; - TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ - - /* Decode the base-64 encoded challenge message */ - if(strlen(chlg64) && *chlg64 != '=') { - result = Curl_base64_decode(chlg64, &input_token, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!input_token) { - infof(data, "DIGEST-MD5 handshake failure (empty challenge message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Query the security package for DigestSSP */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_DIGEST), - &SecurityPackage); - if(status != SEC_E_OK) { - free(input_token); - + return (status == SEC_E_OK ? TRUE : FALSE); +} + +/* + * Curl_auth_create_digest_md5_message() + * + * This is used to generate an already encoded DIGEST-MD5 response message + * ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * chlg64 [in] - The base64 encoded challenge message. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data, + const char *chlg64, + const char *userp, + const char *passwdp, + const char *service, + char **outptr, size_t *outlen) +{ + CURLcode result = CURLE_OK; + TCHAR *spn = NULL; + size_t chlglen = 0; + size_t token_max = 0; + unsigned char *input_token = NULL; + unsigned char *output_token = NULL; + CredHandle credentials; + CtxtHandle context; + PSecPkgInfo SecurityPackage; + SEC_WINNT_AUTH_IDENTITY identity; + SEC_WINNT_AUTH_IDENTITY *p_identity; + SecBuffer chlg_buf; + SecBuffer resp_buf; + SecBufferDesc chlg_desc; + SecBufferDesc resp_desc; + SECURITY_STATUS status; + unsigned long attrs; + TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ + + /* Decode the base-64 encoded challenge message */ + if(strlen(chlg64) && *chlg64 != '=') { + result = Curl_base64_decode(chlg64, &input_token, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!input_token) { + infof(data, "DIGEST-MD5 handshake failure (empty challenge message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Query the security package for DigestSSP */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_DIGEST), + &SecurityPackage); + if(status != SEC_E_OK) { + free(input_token); + failf(data, "SSPI: couldn't get auth info\n"); return CURLE_AUTH_ERROR; - } - - token_max = SecurityPackage->cbMaxToken; - - /* Release the package buffer as it is not required anymore */ - s_pSecFn->FreeContextBuffer(SecurityPackage); - - /* Allocate our response buffer */ - output_token = malloc(token_max); - if(!output_token) { - free(input_token); - - return CURLE_OUT_OF_MEMORY; - } - - /* Generate our SPN */ + } + + token_max = SecurityPackage->cbMaxToken; + + /* Release the package buffer as it is not required anymore */ + s_pSecFn->FreeContextBuffer(SecurityPackage); + + /* Allocate our response buffer */ + output_token = malloc(token_max); + if(!output_token) { + free(input_token); + + return CURLE_OUT_OF_MEMORY; + } + + /* Generate our SPN */ spn = Curl_auth_build_spn(service, data->conn->host.name, NULL); - if(!spn) { - free(output_token); - free(input_token); - - return CURLE_OUT_OF_MEMORY; - } - - if(userp && *userp) { - /* Populate our identity structure */ - result = Curl_create_sspi_identity(userp, passwdp, &identity); - if(result) { - free(spn); - free(output_token); - free(input_token); - - return result; - } - - /* Allow proper cleanup of the identity structure */ - p_identity = &identity; - } - else - /* Use the current Windows user */ - p_identity = NULL; - - /* Acquire our credentials handle */ - status = s_pSecFn->AcquireCredentialsHandle(NULL, - (TCHAR *) TEXT(SP_NAME_DIGEST), - SECPKG_CRED_OUTBOUND, NULL, - p_identity, NULL, NULL, - &credentials, &expiry); - - if(status != SEC_E_OK) { - Curl_sspi_free_identity(p_identity); - free(spn); - free(output_token); - free(input_token); - - return CURLE_LOGIN_DENIED; - } - - /* Setup the challenge "input" security buffer */ - chlg_desc.ulVersion = SECBUFFER_VERSION; - chlg_desc.cBuffers = 1; - chlg_desc.pBuffers = &chlg_buf; - chlg_buf.BufferType = SECBUFFER_TOKEN; - chlg_buf.pvBuffer = input_token; - chlg_buf.cbBuffer = curlx_uztoul(chlglen); - - /* Setup the response "output" security buffer */ - resp_desc.ulVersion = SECBUFFER_VERSION; - resp_desc.cBuffers = 1; - resp_desc.pBuffers = &resp_buf; - resp_buf.BufferType = SECBUFFER_TOKEN; - resp_buf.pvBuffer = output_token; - resp_buf.cbBuffer = curlx_uztoul(token_max); - - /* Generate our response message */ - status = s_pSecFn->InitializeSecurityContext(&credentials, NULL, spn, - 0, 0, 0, &chlg_desc, 0, - &context, &resp_desc, &attrs, - &expiry); - - if(status == SEC_I_COMPLETE_NEEDED || - status == SEC_I_COMPLETE_AND_CONTINUE) - s_pSecFn->CompleteAuthToken(&credentials, &resp_desc); - else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) { - s_pSecFn->FreeCredentialsHandle(&credentials); - Curl_sspi_free_identity(p_identity); - free(spn); - free(output_token); - free(input_token); - + if(!spn) { + free(output_token); + free(input_token); + + return CURLE_OUT_OF_MEMORY; + } + + if(userp && *userp) { + /* Populate our identity structure */ + result = Curl_create_sspi_identity(userp, passwdp, &identity); + if(result) { + free(spn); + free(output_token); + free(input_token); + + return result; + } + + /* Allow proper cleanup of the identity structure */ + p_identity = &identity; + } + else + /* Use the current Windows user */ + p_identity = NULL; + + /* Acquire our credentials handle */ + status = s_pSecFn->AcquireCredentialsHandle(NULL, + (TCHAR *) TEXT(SP_NAME_DIGEST), + SECPKG_CRED_OUTBOUND, NULL, + p_identity, NULL, NULL, + &credentials, &expiry); + + if(status != SEC_E_OK) { + Curl_sspi_free_identity(p_identity); + free(spn); + free(output_token); + free(input_token); + + return CURLE_LOGIN_DENIED; + } + + /* Setup the challenge "input" security buffer */ + chlg_desc.ulVersion = SECBUFFER_VERSION; + chlg_desc.cBuffers = 1; + chlg_desc.pBuffers = &chlg_buf; + chlg_buf.BufferType = SECBUFFER_TOKEN; + chlg_buf.pvBuffer = input_token; + chlg_buf.cbBuffer = curlx_uztoul(chlglen); + + /* Setup the response "output" security buffer */ + resp_desc.ulVersion = SECBUFFER_VERSION; + resp_desc.cBuffers = 1; + resp_desc.pBuffers = &resp_buf; + resp_buf.BufferType = SECBUFFER_TOKEN; + resp_buf.pvBuffer = output_token; + resp_buf.cbBuffer = curlx_uztoul(token_max); + + /* Generate our response message */ + status = s_pSecFn->InitializeSecurityContext(&credentials, NULL, spn, + 0, 0, 0, &chlg_desc, 0, + &context, &resp_desc, &attrs, + &expiry); + + if(status == SEC_I_COMPLETE_NEEDED || + status == SEC_I_COMPLETE_AND_CONTINUE) + s_pSecFn->CompleteAuthToken(&credentials, &resp_desc); + else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) { + s_pSecFn->FreeCredentialsHandle(&credentials); + Curl_sspi_free_identity(p_identity); + free(spn); + free(output_token); + free(input_token); + if(status == SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - - /* Base64 encode the response */ - result = Curl_base64_encode(data, (char *) output_token, resp_buf.cbBuffer, - outptr, outlen); - - /* Free our handles */ - s_pSecFn->DeleteSecurityContext(&context); - s_pSecFn->FreeCredentialsHandle(&credentials); - - /* Free the identity structure */ - Curl_sspi_free_identity(p_identity); - - /* Free the SPN */ - free(spn); - - /* Free the response buffer */ - free(output_token); - - /* Free the decoded challenge message */ - free(input_token); - - return result; -} - -/* - * Curl_override_sspi_http_realm() - * - * This is used to populate the domain in a SSPI identity structure - * The realm is extracted from the challenge message and used as the - * domain if it is not already explicitly set. - * - * Parameters: - * - * chlg [in] - The challenge message. - * identity [in/out] - The identity structure. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_override_sspi_http_realm(const char *chlg, - SEC_WINNT_AUTH_IDENTITY *identity) -{ - xcharp_u domain, dup_domain; - - /* If domain is blank or unset, check challenge message for realm */ - if(!identity->Domain || !identity->DomainLength) { - for(;;) { - char value[DIGEST_MAX_VALUE_LENGTH]; - char content[DIGEST_MAX_CONTENT_LENGTH]; - - /* Pass all additional spaces here */ - while(*chlg && ISSPACE(*chlg)) - chlg++; - - /* Extract a value=content pair */ - if(Curl_auth_digest_get_pair(chlg, value, content, &chlg)) { - if(strcasecompare(value, "realm")) { - - /* Setup identity's domain and length */ + } + + /* Base64 encode the response */ + result = Curl_base64_encode(data, (char *) output_token, resp_buf.cbBuffer, + outptr, outlen); + + /* Free our handles */ + s_pSecFn->DeleteSecurityContext(&context); + s_pSecFn->FreeCredentialsHandle(&credentials); + + /* Free the identity structure */ + Curl_sspi_free_identity(p_identity); + + /* Free the SPN */ + free(spn); + + /* Free the response buffer */ + free(output_token); + + /* Free the decoded challenge message */ + free(input_token); + + return result; +} + +/* + * Curl_override_sspi_http_realm() + * + * This is used to populate the domain in a SSPI identity structure + * The realm is extracted from the challenge message and used as the + * domain if it is not already explicitly set. + * + * Parameters: + * + * chlg [in] - The challenge message. + * identity [in/out] - The identity structure. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_override_sspi_http_realm(const char *chlg, + SEC_WINNT_AUTH_IDENTITY *identity) +{ + xcharp_u domain, dup_domain; + + /* If domain is blank or unset, check challenge message for realm */ + if(!identity->Domain || !identity->DomainLength) { + for(;;) { + char value[DIGEST_MAX_VALUE_LENGTH]; + char content[DIGEST_MAX_CONTENT_LENGTH]; + + /* Pass all additional spaces here */ + while(*chlg && ISSPACE(*chlg)) + chlg++; + + /* Extract a value=content pair */ + if(Curl_auth_digest_get_pair(chlg, value, content, &chlg)) { + if(strcasecompare(value, "realm")) { + + /* Setup identity's domain and length */ domain.tchar_ptr = curlx_convert_UTF8_to_tchar((char *) content); - if(!domain.tchar_ptr) - return CURLE_OUT_OF_MEMORY; - - dup_domain.tchar_ptr = _tcsdup(domain.tchar_ptr); - if(!dup_domain.tchar_ptr) { + if(!domain.tchar_ptr) + return CURLE_OUT_OF_MEMORY; + + dup_domain.tchar_ptr = _tcsdup(domain.tchar_ptr); + if(!dup_domain.tchar_ptr) { curlx_unicodefree(domain.tchar_ptr); - return CURLE_OUT_OF_MEMORY; - } - - free(identity->Domain); - identity->Domain = dup_domain.tbyte_ptr; - identity->DomainLength = curlx_uztoul(_tcslen(dup_domain.tchar_ptr)); - dup_domain.tchar_ptr = NULL; - + return CURLE_OUT_OF_MEMORY; + } + + free(identity->Domain); + identity->Domain = dup_domain.tbyte_ptr; + identity->DomainLength = curlx_uztoul(_tcslen(dup_domain.tchar_ptr)); + dup_domain.tchar_ptr = NULL; + curlx_unicodefree(domain.tchar_ptr); - } - else { - /* Unknown specifier, ignore it! */ - } - } - else - break; /* We're done here */ - - /* Pass all additional spaces here */ - while(*chlg && ISSPACE(*chlg)) - chlg++; - - /* Allow the list to be comma-separated */ - if(',' == *chlg) - chlg++; - } - } - - return CURLE_OK; -} - -/* - * Curl_auth_decode_digest_http_message() - * - * This is used to decode a HTTP DIGEST challenge message into the separate - * attributes. - * - * Parameters: - * - * chlg [in] - The challenge message. - * digest [in/out] - The digest data struct being used and modified. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_decode_digest_http_message(const char *chlg, - struct digestdata *digest) -{ - size_t chlglen = strlen(chlg); - - /* We had an input token before so if there's another one now that means we - provided bad credentials in the previous request or it's stale. */ - if(digest->input_token) { - bool stale = false; - const char *p = chlg; - - /* Check for the 'stale' directive */ - for(;;) { - char value[DIGEST_MAX_VALUE_LENGTH]; - char content[DIGEST_MAX_CONTENT_LENGTH]; - - while(*p && ISSPACE(*p)) - p++; - - if(!Curl_auth_digest_get_pair(p, value, content, &p)) - break; - - if(strcasecompare(value, "stale") && - strcasecompare(content, "true")) { - stale = true; - break; - } - - while(*p && ISSPACE(*p)) - p++; - - if(',' == *p) - p++; - } - - if(stale) - Curl_auth_digest_cleanup(digest); - else - return CURLE_LOGIN_DENIED; - } - - /* Store the challenge for use later */ - digest->input_token = (BYTE *) Curl_memdup(chlg, chlglen + 1); - if(!digest->input_token) - return CURLE_OUT_OF_MEMORY; - - digest->input_token_len = chlglen; - - return CURLE_OK; -} - -/* - * Curl_auth_create_digest_http_message() - * - * This is used to generate a HTTP DIGEST response message ready for sending - * to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * request [in] - The HTTP request. - * uripath [in] - The path of the HTTP uri. - * digest [in/out] - The digest data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const unsigned char *request, - const unsigned char *uripath, - struct digestdata *digest, - char **outptr, size_t *outlen) -{ - size_t token_max; - char *resp; - BYTE *output_token; - size_t output_token_len = 0; - PSecPkgInfo SecurityPackage; - SecBuffer chlg_buf[5]; - SecBufferDesc chlg_desc; - SECURITY_STATUS status; - - (void) data; - - /* Query the security package for DigestSSP */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_DIGEST), - &SecurityPackage); + } + else { + /* Unknown specifier, ignore it! */ + } + } + else + break; /* We're done here */ + + /* Pass all additional spaces here */ + while(*chlg && ISSPACE(*chlg)) + chlg++; + + /* Allow the list to be comma-separated */ + if(',' == *chlg) + chlg++; + } + } + + return CURLE_OK; +} + +/* + * Curl_auth_decode_digest_http_message() + * + * This is used to decode a HTTP DIGEST challenge message into the separate + * attributes. + * + * Parameters: + * + * chlg [in] - The challenge message. + * digest [in/out] - The digest data struct being used and modified. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_decode_digest_http_message(const char *chlg, + struct digestdata *digest) +{ + size_t chlglen = strlen(chlg); + + /* We had an input token before so if there's another one now that means we + provided bad credentials in the previous request or it's stale. */ + if(digest->input_token) { + bool stale = false; + const char *p = chlg; + + /* Check for the 'stale' directive */ + for(;;) { + char value[DIGEST_MAX_VALUE_LENGTH]; + char content[DIGEST_MAX_CONTENT_LENGTH]; + + while(*p && ISSPACE(*p)) + p++; + + if(!Curl_auth_digest_get_pair(p, value, content, &p)) + break; + + if(strcasecompare(value, "stale") && + strcasecompare(content, "true")) { + stale = true; + break; + } + + while(*p && ISSPACE(*p)) + p++; + + if(',' == *p) + p++; + } + + if(stale) + Curl_auth_digest_cleanup(digest); + else + return CURLE_LOGIN_DENIED; + } + + /* Store the challenge for use later */ + digest->input_token = (BYTE *) Curl_memdup(chlg, chlglen + 1); + if(!digest->input_token) + return CURLE_OUT_OF_MEMORY; + + digest->input_token_len = chlglen; + + return CURLE_OK; +} + +/* + * Curl_auth_create_digest_http_message() + * + * This is used to generate a HTTP DIGEST response message ready for sending + * to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * request [in] - The HTTP request. + * uripath [in] - The path of the HTTP uri. + * digest [in/out] - The digest data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const unsigned char *request, + const unsigned char *uripath, + struct digestdata *digest, + char **outptr, size_t *outlen) +{ + size_t token_max; + char *resp; + BYTE *output_token; + size_t output_token_len = 0; + PSecPkgInfo SecurityPackage; + SecBuffer chlg_buf[5]; + SecBufferDesc chlg_desc; + SECURITY_STATUS status; + + (void) data; + + /* Query the security package for DigestSSP */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_DIGEST), + &SecurityPackage); if(status != SEC_E_OK) { failf(data, "SSPI: couldn't get auth info\n"); return CURLE_AUTH_ERROR; } - - token_max = SecurityPackage->cbMaxToken; - - /* Release the package buffer as it is not required anymore */ - s_pSecFn->FreeContextBuffer(SecurityPackage); - - /* Allocate the output buffer according to the max token size as indicated - by the security package */ - output_token = malloc(token_max); - if(!output_token) { - return CURLE_OUT_OF_MEMORY; - } - - /* If the user/passwd that was used to make the identity for http_context - has changed then delete that context. */ - if((userp && !digest->user) || (!userp && digest->user) || - (passwdp && !digest->passwd) || (!passwdp && digest->passwd) || - (userp && digest->user && strcmp(userp, digest->user)) || - (passwdp && digest->passwd && strcmp(passwdp, digest->passwd))) { - if(digest->http_context) { - s_pSecFn->DeleteSecurityContext(digest->http_context); - Curl_safefree(digest->http_context); - } - Curl_safefree(digest->user); - Curl_safefree(digest->passwd); - } - - if(digest->http_context) { - chlg_desc.ulVersion = SECBUFFER_VERSION; - chlg_desc.cBuffers = 5; - chlg_desc.pBuffers = chlg_buf; - chlg_buf[0].BufferType = SECBUFFER_TOKEN; - chlg_buf[0].pvBuffer = NULL; - chlg_buf[0].cbBuffer = 0; - chlg_buf[1].BufferType = SECBUFFER_PKG_PARAMS; - chlg_buf[1].pvBuffer = (void *) request; - chlg_buf[1].cbBuffer = curlx_uztoul(strlen((const char *) request)); - chlg_buf[2].BufferType = SECBUFFER_PKG_PARAMS; - chlg_buf[2].pvBuffer = (void *) uripath; - chlg_buf[2].cbBuffer = curlx_uztoul(strlen((const char *) uripath)); - chlg_buf[3].BufferType = SECBUFFER_PKG_PARAMS; - chlg_buf[3].pvBuffer = NULL; - chlg_buf[3].cbBuffer = 0; - chlg_buf[4].BufferType = SECBUFFER_PADDING; - chlg_buf[4].pvBuffer = output_token; - chlg_buf[4].cbBuffer = curlx_uztoul(token_max); - - status = s_pSecFn->MakeSignature(digest->http_context, 0, &chlg_desc, 0); - if(status == SEC_E_OK) - output_token_len = chlg_buf[4].cbBuffer; - else { /* delete the context so a new one can be made */ - infof(data, "digest_sspi: MakeSignature failed, error 0x%08lx\n", - (long)status); - s_pSecFn->DeleteSecurityContext(digest->http_context); - Curl_safefree(digest->http_context); - } - } - - if(!digest->http_context) { - CredHandle credentials; - SEC_WINNT_AUTH_IDENTITY identity; - SEC_WINNT_AUTH_IDENTITY *p_identity; - SecBuffer resp_buf; - SecBufferDesc resp_desc; - unsigned long attrs; - TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ - TCHAR *spn; - - /* free the copy of user/passwd used to make the previous identity */ - Curl_safefree(digest->user); - Curl_safefree(digest->passwd); - - if(userp && *userp) { - /* Populate our identity structure */ - if(Curl_create_sspi_identity(userp, passwdp, &identity)) { - free(output_token); - return CURLE_OUT_OF_MEMORY; - } - - /* Populate our identity domain */ - if(Curl_override_sspi_http_realm((const char *) digest->input_token, - &identity)) { - free(output_token); - return CURLE_OUT_OF_MEMORY; - } - - /* Allow proper cleanup of the identity structure */ - p_identity = &identity; - } - else - /* Use the current Windows user */ - p_identity = NULL; - - if(userp) { - digest->user = strdup(userp); - - if(!digest->user) { - free(output_token); - return CURLE_OUT_OF_MEMORY; - } - } - - if(passwdp) { - digest->passwd = strdup(passwdp); - - if(!digest->passwd) { - free(output_token); - Curl_safefree(digest->user); - return CURLE_OUT_OF_MEMORY; - } - } - - /* Acquire our credentials handle */ - status = s_pSecFn->AcquireCredentialsHandle(NULL, - (TCHAR *) TEXT(SP_NAME_DIGEST), - SECPKG_CRED_OUTBOUND, NULL, - p_identity, NULL, NULL, - &credentials, &expiry); - if(status != SEC_E_OK) { - Curl_sspi_free_identity(p_identity); - free(output_token); - - return CURLE_LOGIN_DENIED; - } - - /* Setup the challenge "input" security buffer if present */ - chlg_desc.ulVersion = SECBUFFER_VERSION; - chlg_desc.cBuffers = 3; - chlg_desc.pBuffers = chlg_buf; - chlg_buf[0].BufferType = SECBUFFER_TOKEN; - chlg_buf[0].pvBuffer = digest->input_token; - chlg_buf[0].cbBuffer = curlx_uztoul(digest->input_token_len); - chlg_buf[1].BufferType = SECBUFFER_PKG_PARAMS; - chlg_buf[1].pvBuffer = (void *) request; - chlg_buf[1].cbBuffer = curlx_uztoul(strlen((const char *) request)); - chlg_buf[2].BufferType = SECBUFFER_PKG_PARAMS; - chlg_buf[2].pvBuffer = NULL; - chlg_buf[2].cbBuffer = 0; - - /* Setup the response "output" security buffer */ - resp_desc.ulVersion = SECBUFFER_VERSION; - resp_desc.cBuffers = 1; - resp_desc.pBuffers = &resp_buf; - resp_buf.BufferType = SECBUFFER_TOKEN; - resp_buf.pvBuffer = output_token; - resp_buf.cbBuffer = curlx_uztoul(token_max); - + + token_max = SecurityPackage->cbMaxToken; + + /* Release the package buffer as it is not required anymore */ + s_pSecFn->FreeContextBuffer(SecurityPackage); + + /* Allocate the output buffer according to the max token size as indicated + by the security package */ + output_token = malloc(token_max); + if(!output_token) { + return CURLE_OUT_OF_MEMORY; + } + + /* If the user/passwd that was used to make the identity for http_context + has changed then delete that context. */ + if((userp && !digest->user) || (!userp && digest->user) || + (passwdp && !digest->passwd) || (!passwdp && digest->passwd) || + (userp && digest->user && strcmp(userp, digest->user)) || + (passwdp && digest->passwd && strcmp(passwdp, digest->passwd))) { + if(digest->http_context) { + s_pSecFn->DeleteSecurityContext(digest->http_context); + Curl_safefree(digest->http_context); + } + Curl_safefree(digest->user); + Curl_safefree(digest->passwd); + } + + if(digest->http_context) { + chlg_desc.ulVersion = SECBUFFER_VERSION; + chlg_desc.cBuffers = 5; + chlg_desc.pBuffers = chlg_buf; + chlg_buf[0].BufferType = SECBUFFER_TOKEN; + chlg_buf[0].pvBuffer = NULL; + chlg_buf[0].cbBuffer = 0; + chlg_buf[1].BufferType = SECBUFFER_PKG_PARAMS; + chlg_buf[1].pvBuffer = (void *) request; + chlg_buf[1].cbBuffer = curlx_uztoul(strlen((const char *) request)); + chlg_buf[2].BufferType = SECBUFFER_PKG_PARAMS; + chlg_buf[2].pvBuffer = (void *) uripath; + chlg_buf[2].cbBuffer = curlx_uztoul(strlen((const char *) uripath)); + chlg_buf[3].BufferType = SECBUFFER_PKG_PARAMS; + chlg_buf[3].pvBuffer = NULL; + chlg_buf[3].cbBuffer = 0; + chlg_buf[4].BufferType = SECBUFFER_PADDING; + chlg_buf[4].pvBuffer = output_token; + chlg_buf[4].cbBuffer = curlx_uztoul(token_max); + + status = s_pSecFn->MakeSignature(digest->http_context, 0, &chlg_desc, 0); + if(status == SEC_E_OK) + output_token_len = chlg_buf[4].cbBuffer; + else { /* delete the context so a new one can be made */ + infof(data, "digest_sspi: MakeSignature failed, error 0x%08lx\n", + (long)status); + s_pSecFn->DeleteSecurityContext(digest->http_context); + Curl_safefree(digest->http_context); + } + } + + if(!digest->http_context) { + CredHandle credentials; + SEC_WINNT_AUTH_IDENTITY identity; + SEC_WINNT_AUTH_IDENTITY *p_identity; + SecBuffer resp_buf; + SecBufferDesc resp_desc; + unsigned long attrs; + TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ + TCHAR *spn; + + /* free the copy of user/passwd used to make the previous identity */ + Curl_safefree(digest->user); + Curl_safefree(digest->passwd); + + if(userp && *userp) { + /* Populate our identity structure */ + if(Curl_create_sspi_identity(userp, passwdp, &identity)) { + free(output_token); + return CURLE_OUT_OF_MEMORY; + } + + /* Populate our identity domain */ + if(Curl_override_sspi_http_realm((const char *) digest->input_token, + &identity)) { + free(output_token); + return CURLE_OUT_OF_MEMORY; + } + + /* Allow proper cleanup of the identity structure */ + p_identity = &identity; + } + else + /* Use the current Windows user */ + p_identity = NULL; + + if(userp) { + digest->user = strdup(userp); + + if(!digest->user) { + free(output_token); + return CURLE_OUT_OF_MEMORY; + } + } + + if(passwdp) { + digest->passwd = strdup(passwdp); + + if(!digest->passwd) { + free(output_token); + Curl_safefree(digest->user); + return CURLE_OUT_OF_MEMORY; + } + } + + /* Acquire our credentials handle */ + status = s_pSecFn->AcquireCredentialsHandle(NULL, + (TCHAR *) TEXT(SP_NAME_DIGEST), + SECPKG_CRED_OUTBOUND, NULL, + p_identity, NULL, NULL, + &credentials, &expiry); + if(status != SEC_E_OK) { + Curl_sspi_free_identity(p_identity); + free(output_token); + + return CURLE_LOGIN_DENIED; + } + + /* Setup the challenge "input" security buffer if present */ + chlg_desc.ulVersion = SECBUFFER_VERSION; + chlg_desc.cBuffers = 3; + chlg_desc.pBuffers = chlg_buf; + chlg_buf[0].BufferType = SECBUFFER_TOKEN; + chlg_buf[0].pvBuffer = digest->input_token; + chlg_buf[0].cbBuffer = curlx_uztoul(digest->input_token_len); + chlg_buf[1].BufferType = SECBUFFER_PKG_PARAMS; + chlg_buf[1].pvBuffer = (void *) request; + chlg_buf[1].cbBuffer = curlx_uztoul(strlen((const char *) request)); + chlg_buf[2].BufferType = SECBUFFER_PKG_PARAMS; + chlg_buf[2].pvBuffer = NULL; + chlg_buf[2].cbBuffer = 0; + + /* Setup the response "output" security buffer */ + resp_desc.ulVersion = SECBUFFER_VERSION; + resp_desc.cBuffers = 1; + resp_desc.pBuffers = &resp_buf; + resp_buf.BufferType = SECBUFFER_TOKEN; + resp_buf.pvBuffer = output_token; + resp_buf.cbBuffer = curlx_uztoul(token_max); + spn = curlx_convert_UTF8_to_tchar((char *) uripath); - if(!spn) { - s_pSecFn->FreeCredentialsHandle(&credentials); - - Curl_sspi_free_identity(p_identity); - free(output_token); - - return CURLE_OUT_OF_MEMORY; - } - - /* Allocate our new context handle */ - digest->http_context = calloc(1, sizeof(CtxtHandle)); - if(!digest->http_context) - return CURLE_OUT_OF_MEMORY; - - /* Generate our response message */ - status = s_pSecFn->InitializeSecurityContext(&credentials, NULL, - spn, - ISC_REQ_USE_HTTP_STYLE, 0, 0, - &chlg_desc, 0, - digest->http_context, - &resp_desc, &attrs, &expiry); + if(!spn) { + s_pSecFn->FreeCredentialsHandle(&credentials); + + Curl_sspi_free_identity(p_identity); + free(output_token); + + return CURLE_OUT_OF_MEMORY; + } + + /* Allocate our new context handle */ + digest->http_context = calloc(1, sizeof(CtxtHandle)); + if(!digest->http_context) + return CURLE_OUT_OF_MEMORY; + + /* Generate our response message */ + status = s_pSecFn->InitializeSecurityContext(&credentials, NULL, + spn, + ISC_REQ_USE_HTTP_STYLE, 0, 0, + &chlg_desc, 0, + digest->http_context, + &resp_desc, &attrs, &expiry); curlx_unicodefree(spn); - - if(status == SEC_I_COMPLETE_NEEDED || - status == SEC_I_COMPLETE_AND_CONTINUE) - s_pSecFn->CompleteAuthToken(&credentials, &resp_desc); - else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) { - s_pSecFn->FreeCredentialsHandle(&credentials); - - Curl_sspi_free_identity(p_identity); - free(output_token); - - Curl_safefree(digest->http_context); - + + if(status == SEC_I_COMPLETE_NEEDED || + status == SEC_I_COMPLETE_AND_CONTINUE) + s_pSecFn->CompleteAuthToken(&credentials, &resp_desc); + else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) { + s_pSecFn->FreeCredentialsHandle(&credentials); + + Curl_sspi_free_identity(p_identity); + free(output_token); + + Curl_safefree(digest->http_context); + if(status == SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - - output_token_len = resp_buf.cbBuffer; - - s_pSecFn->FreeCredentialsHandle(&credentials); - Curl_sspi_free_identity(p_identity); - } - - resp = malloc(output_token_len + 1); - if(!resp) { - free(output_token); - - return CURLE_OUT_OF_MEMORY; - } - - /* Copy the generated response */ - memcpy(resp, output_token, output_token_len); - resp[output_token_len] = 0; - - /* Return the response */ - *outptr = resp; - *outlen = output_token_len; - - /* Free the response buffer */ - free(output_token); - - return CURLE_OK; -} - -/* - * Curl_auth_digest_cleanup() - * - * This is used to clean up the digest specific data. - * - * Parameters: - * - * digest [in/out] - The digest data struct being cleaned up. - * - */ -void Curl_auth_digest_cleanup(struct digestdata *digest) -{ - /* Free the input token */ - Curl_safefree(digest->input_token); - - /* Reset any variables */ - digest->input_token_len = 0; - - /* Delete security context */ - if(digest->http_context) { - s_pSecFn->DeleteSecurityContext(digest->http_context); - Curl_safefree(digest->http_context); - } - - /* Free the copy of user/passwd used to make the identity for http_context */ - Curl_safefree(digest->user); - Curl_safefree(digest->passwd); -} - -#endif /* USE_WINDOWS_SSPI && !CURL_DISABLE_CRYPTO_AUTH */ + } + + output_token_len = resp_buf.cbBuffer; + + s_pSecFn->FreeCredentialsHandle(&credentials); + Curl_sspi_free_identity(p_identity); + } + + resp = malloc(output_token_len + 1); + if(!resp) { + free(output_token); + + return CURLE_OUT_OF_MEMORY; + } + + /* Copy the generated response */ + memcpy(resp, output_token, output_token_len); + resp[output_token_len] = 0; + + /* Return the response */ + *outptr = resp; + *outlen = output_token_len; + + /* Free the response buffer */ + free(output_token); + + return CURLE_OK; +} + +/* + * Curl_auth_digest_cleanup() + * + * This is used to clean up the digest specific data. + * + * Parameters: + * + * digest [in/out] - The digest data struct being cleaned up. + * + */ +void Curl_auth_digest_cleanup(struct digestdata *digest) +{ + /* Free the input token */ + Curl_safefree(digest->input_token); + + /* Reset any variables */ + digest->input_token_len = 0; + + /* Delete security context */ + if(digest->http_context) { + s_pSecFn->DeleteSecurityContext(digest->http_context); + Curl_safefree(digest->http_context); + } + + /* Free the copy of user/passwd used to make the identity for http_context */ + Curl_safefree(digest->user); + Curl_safefree(digest->passwd); +} + +#endif /* USE_WINDOWS_SSPI && !CURL_DISABLE_CRYPTO_AUTH */ diff --git a/contrib/libs/curl/lib/vauth/krb5_gssapi.c b/contrib/libs/curl/lib/vauth/krb5_gssapi.c index 0412815e93..a69acc11d9 100644 --- a/contrib/libs/curl/lib/vauth/krb5_gssapi.c +++ b/contrib/libs/curl/lib/vauth/krb5_gssapi.c @@ -1,401 +1,401 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 2014 - 2019, Steve Holme, <steve_holme@hotmail.com>. * Copyright (C) 2015 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC4752 The Kerberos V5 ("GSSAPI") SASL Mechanism - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if defined(HAVE_GSSAPI) && defined(USE_KERBEROS5) - -#include <curl/curl.h> - -#include "vauth/vauth.h" -#include "curl_sasl.h" -#include "urldata.h" -#include "curl_base64.h" -#include "curl_gssapi.h" -#include "sendf.h" -#include "curl_printf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_is_gssapi_supported() - * - * This is used to evaluate if GSSAPI (Kerberos V5) is supported. - * - * Parameters: None - * - * Returns TRUE if Kerberos V5 is supported by the GSS-API library. - */ -bool Curl_auth_is_gssapi_supported(void) -{ - return TRUE; -} - -/* - * Curl_auth_create_gssapi_user_message() - * - * This is used to generate an already encoded GSSAPI (Kerberos V5) user token - * message ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name. - * passwdp [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * host [in[ - The host name. - * mutual_auth [in] - Flag specifying whether or not mutual authentication - * is enabled. - * chlg64 [in] - Pointer to the optional base64 encoded challenge - * message. - * krb5 [in/out] - The Kerberos 5 data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const char *service, - const char *host, - const bool mutual_auth, - const char *chlg64, - struct kerberos5data *krb5, - char **outptr, size_t *outlen) -{ - CURLcode result = CURLE_OK; - size_t chlglen = 0; - unsigned char *chlg = NULL; - OM_uint32 major_status; - OM_uint32 minor_status; - OM_uint32 unused_status; - gss_buffer_desc spn_token = GSS_C_EMPTY_BUFFER; - gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER; - gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER; - - (void) userp; - (void) passwdp; - - if(!krb5->spn) { - /* Generate our SPN */ - char *spn = Curl_auth_build_spn(service, NULL, host); - if(!spn) - return CURLE_OUT_OF_MEMORY; - - /* Populate the SPN structure */ - spn_token.value = spn; - spn_token.length = strlen(spn); - - /* Import the SPN */ - major_status = gss_import_name(&minor_status, &spn_token, - GSS_C_NT_HOSTBASED_SERVICE, &krb5->spn); - if(GSS_ERROR(major_status)) { - Curl_gss_log_error(data, "gss_import_name() failed: ", - major_status, minor_status); - - free(spn); - + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC4752 The Kerberos V5 ("GSSAPI") SASL Mechanism + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(HAVE_GSSAPI) && defined(USE_KERBEROS5) + +#include <curl/curl.h> + +#include "vauth/vauth.h" +#include "curl_sasl.h" +#include "urldata.h" +#include "curl_base64.h" +#include "curl_gssapi.h" +#include "sendf.h" +#include "curl_printf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_is_gssapi_supported() + * + * This is used to evaluate if GSSAPI (Kerberos V5) is supported. + * + * Parameters: None + * + * Returns TRUE if Kerberos V5 is supported by the GSS-API library. + */ +bool Curl_auth_is_gssapi_supported(void) +{ + return TRUE; +} + +/* + * Curl_auth_create_gssapi_user_message() + * + * This is used to generate an already encoded GSSAPI (Kerberos V5) user token + * message ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name. + * passwdp [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * host [in[ - The host name. + * mutual_auth [in] - Flag specifying whether or not mutual authentication + * is enabled. + * chlg64 [in] - Pointer to the optional base64 encoded challenge + * message. + * krb5 [in/out] - The Kerberos 5 data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const char *service, + const char *host, + const bool mutual_auth, + const char *chlg64, + struct kerberos5data *krb5, + char **outptr, size_t *outlen) +{ + CURLcode result = CURLE_OK; + size_t chlglen = 0; + unsigned char *chlg = NULL; + OM_uint32 major_status; + OM_uint32 minor_status; + OM_uint32 unused_status; + gss_buffer_desc spn_token = GSS_C_EMPTY_BUFFER; + gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER; + gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER; + + (void) userp; + (void) passwdp; + + if(!krb5->spn) { + /* Generate our SPN */ + char *spn = Curl_auth_build_spn(service, NULL, host); + if(!spn) + return CURLE_OUT_OF_MEMORY; + + /* Populate the SPN structure */ + spn_token.value = spn; + spn_token.length = strlen(spn); + + /* Import the SPN */ + major_status = gss_import_name(&minor_status, &spn_token, + GSS_C_NT_HOSTBASED_SERVICE, &krb5->spn); + if(GSS_ERROR(major_status)) { + Curl_gss_log_error(data, "gss_import_name() failed: ", + major_status, minor_status); + + free(spn); + return CURLE_AUTH_ERROR; - } - - free(spn); - } - - if(chlg64 && *chlg64) { - /* Decode the base-64 encoded challenge message */ - if(*chlg64 != '=') { - result = Curl_base64_decode(chlg64, &chlg, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!chlg) { - infof(data, "GSSAPI handshake failure (empty challenge message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Setup the challenge "input" security buffer */ - input_token.value = chlg; - input_token.length = chlglen; - } - - major_status = Curl_gss_init_sec_context(data, - &minor_status, - &krb5->context, - krb5->spn, - &Curl_krb5_mech_oid, - GSS_C_NO_CHANNEL_BINDINGS, - &input_token, - &output_token, - mutual_auth, - NULL); - - /* Free the decoded challenge as it is not required anymore */ - free(input_token.value); - - if(GSS_ERROR(major_status)) { - if(output_token.value) - gss_release_buffer(&unused_status, &output_token); - - Curl_gss_log_error(data, "gss_init_sec_context() failed: ", - major_status, minor_status); - + } + + free(spn); + } + + if(chlg64 && *chlg64) { + /* Decode the base-64 encoded challenge message */ + if(*chlg64 != '=') { + result = Curl_base64_decode(chlg64, &chlg, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!chlg) { + infof(data, "GSSAPI handshake failure (empty challenge message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Setup the challenge "input" security buffer */ + input_token.value = chlg; + input_token.length = chlglen; + } + + major_status = Curl_gss_init_sec_context(data, + &minor_status, + &krb5->context, + krb5->spn, + &Curl_krb5_mech_oid, + GSS_C_NO_CHANNEL_BINDINGS, + &input_token, + &output_token, + mutual_auth, + NULL); + + /* Free the decoded challenge as it is not required anymore */ + free(input_token.value); + + if(GSS_ERROR(major_status)) { + if(output_token.value) + gss_release_buffer(&unused_status, &output_token); + + Curl_gss_log_error(data, "gss_init_sec_context() failed: ", + major_status, minor_status); + return CURLE_AUTH_ERROR; - } - - if(output_token.value && output_token.length) { - /* Base64 encode the response */ - result = Curl_base64_encode(data, (char *) output_token.value, - output_token.length, outptr, outlen); - - gss_release_buffer(&unused_status, &output_token); - } - else if(mutual_auth) { - *outptr = strdup(""); - if(!*outptr) - result = CURLE_OUT_OF_MEMORY; - } - - return result; -} - -/* - * Curl_auth_create_gssapi_security_message() - * - * This is used to generate an already encoded GSSAPI (Kerberos V5) security - * token message ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * chlg64 [in] - Pointer to the optional base64 encoded challenge message. - * krb5 [in/out] - The Kerberos 5 data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data, - const char *chlg64, - struct kerberos5data *krb5, - char **outptr, - size_t *outlen) -{ - CURLcode result = CURLE_OK; - size_t chlglen = 0; - size_t messagelen = 0; - unsigned char *chlg = NULL; - unsigned char *message = NULL; - OM_uint32 major_status; - OM_uint32 minor_status; - OM_uint32 unused_status; - gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER; - gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER; - unsigned int indata = 0; - unsigned int outdata = 0; - gss_qop_t qop = GSS_C_QOP_DEFAULT; - unsigned int sec_layer = 0; - unsigned int max_size = 0; - gss_name_t username = GSS_C_NO_NAME; - gss_buffer_desc username_token; - - /* Decode the base-64 encoded input message */ - if(strlen(chlg64) && *chlg64 != '=') { - result = Curl_base64_decode(chlg64, &chlg, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!chlg) { - infof(data, "GSSAPI handshake failure (empty security message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Get the fully qualified username back from the context */ - major_status = gss_inquire_context(&minor_status, krb5->context, - &username, NULL, NULL, NULL, NULL, - NULL, NULL); - if(GSS_ERROR(major_status)) { - Curl_gss_log_error(data, "gss_inquire_context() failed: ", - major_status, minor_status); - - free(chlg); - + } + + if(output_token.value && output_token.length) { + /* Base64 encode the response */ + result = Curl_base64_encode(data, (char *) output_token.value, + output_token.length, outptr, outlen); + + gss_release_buffer(&unused_status, &output_token); + } + else if(mutual_auth) { + *outptr = strdup(""); + if(!*outptr) + result = CURLE_OUT_OF_MEMORY; + } + + return result; +} + +/* + * Curl_auth_create_gssapi_security_message() + * + * This is used to generate an already encoded GSSAPI (Kerberos V5) security + * token message ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * chlg64 [in] - Pointer to the optional base64 encoded challenge message. + * krb5 [in/out] - The Kerberos 5 data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data, + const char *chlg64, + struct kerberos5data *krb5, + char **outptr, + size_t *outlen) +{ + CURLcode result = CURLE_OK; + size_t chlglen = 0; + size_t messagelen = 0; + unsigned char *chlg = NULL; + unsigned char *message = NULL; + OM_uint32 major_status; + OM_uint32 minor_status; + OM_uint32 unused_status; + gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER; + gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER; + unsigned int indata = 0; + unsigned int outdata = 0; + gss_qop_t qop = GSS_C_QOP_DEFAULT; + unsigned int sec_layer = 0; + unsigned int max_size = 0; + gss_name_t username = GSS_C_NO_NAME; + gss_buffer_desc username_token; + + /* Decode the base-64 encoded input message */ + if(strlen(chlg64) && *chlg64 != '=') { + result = Curl_base64_decode(chlg64, &chlg, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!chlg) { + infof(data, "GSSAPI handshake failure (empty security message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Get the fully qualified username back from the context */ + major_status = gss_inquire_context(&minor_status, krb5->context, + &username, NULL, NULL, NULL, NULL, + NULL, NULL); + if(GSS_ERROR(major_status)) { + Curl_gss_log_error(data, "gss_inquire_context() failed: ", + major_status, minor_status); + + free(chlg); + return CURLE_AUTH_ERROR; - } - - /* Convert the username from internal format to a displayable token */ - major_status = gss_display_name(&minor_status, username, - &username_token, NULL); - if(GSS_ERROR(major_status)) { - Curl_gss_log_error(data, "gss_display_name() failed: ", - major_status, minor_status); - - free(chlg); - + } + + /* Convert the username from internal format to a displayable token */ + major_status = gss_display_name(&minor_status, username, + &username_token, NULL); + if(GSS_ERROR(major_status)) { + Curl_gss_log_error(data, "gss_display_name() failed: ", + major_status, minor_status); + + free(chlg); + return CURLE_AUTH_ERROR; - } - - /* Setup the challenge "input" security buffer */ - input_token.value = chlg; - input_token.length = chlglen; - - /* Decrypt the inbound challenge and obtain the qop */ - major_status = gss_unwrap(&minor_status, krb5->context, &input_token, - &output_token, NULL, &qop); - if(GSS_ERROR(major_status)) { - Curl_gss_log_error(data, "gss_unwrap() failed: ", - major_status, minor_status); - - gss_release_buffer(&unused_status, &username_token); - free(chlg); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Not 4 octets long so fail as per RFC4752 Section 3.1 */ - if(output_token.length != 4) { - infof(data, "GSSAPI handshake failure (invalid security data)\n"); - - gss_release_buffer(&unused_status, &username_token); - free(chlg); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Copy the data out and free the challenge as it is not required anymore */ - memcpy(&indata, output_token.value, 4); - gss_release_buffer(&unused_status, &output_token); - free(chlg); - - /* Extract the security layer */ - sec_layer = indata & 0x000000FF; - if(!(sec_layer & GSSAUTH_P_NONE)) { - infof(data, "GSSAPI handshake failure (invalid security layer)\n"); - - gss_release_buffer(&unused_status, &username_token); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Extract the maximum message size the server can receive */ - max_size = ntohl(indata & 0xFFFFFF00); - if(max_size > 0) { - /* The server has told us it supports a maximum receive buffer, however, as - we don't require one unless we are encrypting data, we tell the server - our receive buffer is zero. */ - max_size = 0; - } - - /* Allocate our message */ - messagelen = sizeof(outdata) + username_token.length + 1; - message = malloc(messagelen); - if(!message) { - gss_release_buffer(&unused_status, &username_token); - - return CURLE_OUT_OF_MEMORY; - } - - /* Populate the message with the security layer, client supported receive - message size and authorization identity including the 0x00 based - terminator. Note: Despite RFC4752 Section 3.1 stating "The authorization - identity is not terminated with the zero-valued (%x00) octet." it seems - necessary to include it. */ - outdata = htonl(max_size) | sec_layer; - memcpy(message, &outdata, sizeof(outdata)); - memcpy(message + sizeof(outdata), username_token.value, - username_token.length); - message[messagelen - 1] = '\0'; - - /* Free the username token as it is not required anymore */ - gss_release_buffer(&unused_status, &username_token); - - /* Setup the "authentication data" security buffer */ - input_token.value = message; - input_token.length = messagelen; - - /* Encrypt the data */ - major_status = gss_wrap(&minor_status, krb5->context, 0, - GSS_C_QOP_DEFAULT, &input_token, NULL, - &output_token); - if(GSS_ERROR(major_status)) { - Curl_gss_log_error(data, "gss_wrap() failed: ", - major_status, minor_status); - - free(message); - + } + + /* Setup the challenge "input" security buffer */ + input_token.value = chlg; + input_token.length = chlglen; + + /* Decrypt the inbound challenge and obtain the qop */ + major_status = gss_unwrap(&minor_status, krb5->context, &input_token, + &output_token, NULL, &qop); + if(GSS_ERROR(major_status)) { + Curl_gss_log_error(data, "gss_unwrap() failed: ", + major_status, minor_status); + + gss_release_buffer(&unused_status, &username_token); + free(chlg); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Not 4 octets long so fail as per RFC4752 Section 3.1 */ + if(output_token.length != 4) { + infof(data, "GSSAPI handshake failure (invalid security data)\n"); + + gss_release_buffer(&unused_status, &username_token); + free(chlg); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Copy the data out and free the challenge as it is not required anymore */ + memcpy(&indata, output_token.value, 4); + gss_release_buffer(&unused_status, &output_token); + free(chlg); + + /* Extract the security layer */ + sec_layer = indata & 0x000000FF; + if(!(sec_layer & GSSAUTH_P_NONE)) { + infof(data, "GSSAPI handshake failure (invalid security layer)\n"); + + gss_release_buffer(&unused_status, &username_token); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Extract the maximum message size the server can receive */ + max_size = ntohl(indata & 0xFFFFFF00); + if(max_size > 0) { + /* The server has told us it supports a maximum receive buffer, however, as + we don't require one unless we are encrypting data, we tell the server + our receive buffer is zero. */ + max_size = 0; + } + + /* Allocate our message */ + messagelen = sizeof(outdata) + username_token.length + 1; + message = malloc(messagelen); + if(!message) { + gss_release_buffer(&unused_status, &username_token); + + return CURLE_OUT_OF_MEMORY; + } + + /* Populate the message with the security layer, client supported receive + message size and authorization identity including the 0x00 based + terminator. Note: Despite RFC4752 Section 3.1 stating "The authorization + identity is not terminated with the zero-valued (%x00) octet." it seems + necessary to include it. */ + outdata = htonl(max_size) | sec_layer; + memcpy(message, &outdata, sizeof(outdata)); + memcpy(message + sizeof(outdata), username_token.value, + username_token.length); + message[messagelen - 1] = '\0'; + + /* Free the username token as it is not required anymore */ + gss_release_buffer(&unused_status, &username_token); + + /* Setup the "authentication data" security buffer */ + input_token.value = message; + input_token.length = messagelen; + + /* Encrypt the data */ + major_status = gss_wrap(&minor_status, krb5->context, 0, + GSS_C_QOP_DEFAULT, &input_token, NULL, + &output_token); + if(GSS_ERROR(major_status)) { + Curl_gss_log_error(data, "gss_wrap() failed: ", + major_status, minor_status); + + free(message); + return CURLE_AUTH_ERROR; - } - - /* Base64 encode the response */ - result = Curl_base64_encode(data, (char *) output_token.value, - output_token.length, outptr, outlen); - - /* Free the output buffer */ - gss_release_buffer(&unused_status, &output_token); - - /* Free the message buffer */ - free(message); - - return result; -} - -/* + } + + /* Base64 encode the response */ + result = Curl_base64_encode(data, (char *) output_token.value, + output_token.length, outptr, outlen); + + /* Free the output buffer */ + gss_release_buffer(&unused_status, &output_token); + + /* Free the message buffer */ + free(message); + + return result; +} + +/* * Curl_auth_cleanup_gssapi() - * - * This is used to clean up the GSSAPI (Kerberos V5) specific data. - * - * Parameters: - * - * krb5 [in/out] - The Kerberos 5 data struct being cleaned up. - * - */ + * + * This is used to clean up the GSSAPI (Kerberos V5) specific data. + * + * Parameters: + * + * krb5 [in/out] - The Kerberos 5 data struct being cleaned up. + * + */ void Curl_auth_cleanup_gssapi(struct kerberos5data *krb5) -{ - OM_uint32 minor_status; - - /* Free our security context */ - if(krb5->context != GSS_C_NO_CONTEXT) { - gss_delete_sec_context(&minor_status, &krb5->context, GSS_C_NO_BUFFER); - krb5->context = GSS_C_NO_CONTEXT; - } - - /* Free the SPN */ - if(krb5->spn != GSS_C_NO_NAME) { - gss_release_name(&minor_status, &krb5->spn); - krb5->spn = GSS_C_NO_NAME; - } -} - -#endif /* HAVE_GSSAPI && USE_KERBEROS5 */ +{ + OM_uint32 minor_status; + + /* Free our security context */ + if(krb5->context != GSS_C_NO_CONTEXT) { + gss_delete_sec_context(&minor_status, &krb5->context, GSS_C_NO_BUFFER); + krb5->context = GSS_C_NO_CONTEXT; + } + + /* Free the SPN */ + if(krb5->spn != GSS_C_NO_NAME) { + gss_release_name(&minor_status, &krb5->spn); + krb5->spn = GSS_C_NO_NAME; + } +} + +#endif /* HAVE_GSSAPI && USE_KERBEROS5 */ diff --git a/contrib/libs/curl/lib/vauth/krb5_sspi.c b/contrib/libs/curl/lib/vauth/krb5_sspi.c index 8e56a82409..27acb69a3c 100644 --- a/contrib/libs/curl/lib/vauth/krb5_sspi.c +++ b/contrib/libs/curl/lib/vauth/krb5_sspi.c @@ -1,533 +1,533 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 2014 - 2020, Steve Holme, <steve_holme@hotmail.com>. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC4752 The Kerberos V5 ("GSSAPI") SASL Mechanism - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if defined(USE_WINDOWS_SSPI) && defined(USE_KERBEROS5) - -#include <curl/curl.h> - -#include "vauth/vauth.h" -#include "urldata.h" -#include "curl_base64.h" -#include "warnless.h" -#include "curl_multibyte.h" -#include "sendf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_is_gssapi_supported() - * - * This is used to evaluate if GSSAPI (Kerberos V5) is supported. - * - * Parameters: None - * - * Returns TRUE if Kerberos V5 is supported by Windows SSPI. - */ -bool Curl_auth_is_gssapi_supported(void) -{ - PSecPkgInfo SecurityPackage; - SECURITY_STATUS status; - - /* Query the security package for Kerberos */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) - TEXT(SP_NAME_KERBEROS), - &SecurityPackage); - + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC4752 The Kerberos V5 ("GSSAPI") SASL Mechanism + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(USE_WINDOWS_SSPI) && defined(USE_KERBEROS5) + +#include <curl/curl.h> + +#include "vauth/vauth.h" +#include "urldata.h" +#include "curl_base64.h" +#include "warnless.h" +#include "curl_multibyte.h" +#include "sendf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_is_gssapi_supported() + * + * This is used to evaluate if GSSAPI (Kerberos V5) is supported. + * + * Parameters: None + * + * Returns TRUE if Kerberos V5 is supported by Windows SSPI. + */ +bool Curl_auth_is_gssapi_supported(void) +{ + PSecPkgInfo SecurityPackage; + SECURITY_STATUS status; + + /* Query the security package for Kerberos */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) + TEXT(SP_NAME_KERBEROS), + &SecurityPackage); + /* Release the package buffer as it is not required anymore */ if(status == SEC_E_OK) { s_pSecFn->FreeContextBuffer(SecurityPackage); } - return (status == SEC_E_OK ? TRUE : FALSE); -} - -/* - * Curl_auth_create_gssapi_user_message() - * - * This is used to generate an already encoded GSSAPI (Kerberos V5) user token - * message ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * host [in] - The host name. - * mutual_auth [in] - Flag specifying whether or not mutual authentication - * is enabled. - * chlg64 [in] - The optional base64 encoded challenge message. - * krb5 [in/out] - The Kerberos 5 data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const char *service, - const char *host, - const bool mutual_auth, - const char *chlg64, - struct kerberos5data *krb5, - char **outptr, size_t *outlen) -{ - CURLcode result = CURLE_OK; - size_t chlglen = 0; - unsigned char *chlg = NULL; - CtxtHandle context; - PSecPkgInfo SecurityPackage; - SecBuffer chlg_buf; - SecBuffer resp_buf; - SecBufferDesc chlg_desc; - SecBufferDesc resp_desc; - SECURITY_STATUS status; - unsigned long attrs; - TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ - - if(!krb5->spn) { - /* Generate our SPN */ - krb5->spn = Curl_auth_build_spn(service, host, NULL); - if(!krb5->spn) - return CURLE_OUT_OF_MEMORY; - } - - if(!krb5->output_token) { - /* Query the security package for Kerberos */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) - TEXT(SP_NAME_KERBEROS), - &SecurityPackage); - if(status != SEC_E_OK) { + return (status == SEC_E_OK ? TRUE : FALSE); +} + +/* + * Curl_auth_create_gssapi_user_message() + * + * This is used to generate an already encoded GSSAPI (Kerberos V5) user token + * message ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * host [in] - The host name. + * mutual_auth [in] - Flag specifying whether or not mutual authentication + * is enabled. + * chlg64 [in] - The optional base64 encoded challenge message. + * krb5 [in/out] - The Kerberos 5 data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const char *service, + const char *host, + const bool mutual_auth, + const char *chlg64, + struct kerberos5data *krb5, + char **outptr, size_t *outlen) +{ + CURLcode result = CURLE_OK; + size_t chlglen = 0; + unsigned char *chlg = NULL; + CtxtHandle context; + PSecPkgInfo SecurityPackage; + SecBuffer chlg_buf; + SecBuffer resp_buf; + SecBufferDesc chlg_desc; + SecBufferDesc resp_desc; + SECURITY_STATUS status; + unsigned long attrs; + TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ + + if(!krb5->spn) { + /* Generate our SPN */ + krb5->spn = Curl_auth_build_spn(service, host, NULL); + if(!krb5->spn) + return CURLE_OUT_OF_MEMORY; + } + + if(!krb5->output_token) { + /* Query the security package for Kerberos */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) + TEXT(SP_NAME_KERBEROS), + &SecurityPackage); + if(status != SEC_E_OK) { failf(data, "SSPI: couldn't get auth info\n"); return CURLE_AUTH_ERROR; - } - - krb5->token_max = SecurityPackage->cbMaxToken; - - /* Release the package buffer as it is not required anymore */ - s_pSecFn->FreeContextBuffer(SecurityPackage); - - /* Allocate our response buffer */ - krb5->output_token = malloc(krb5->token_max); - if(!krb5->output_token) - return CURLE_OUT_OF_MEMORY; - } - - if(!krb5->credentials) { - /* Do we have credentials to use or are we using single sign-on? */ - if(userp && *userp) { - /* Populate our identity structure */ - result = Curl_create_sspi_identity(userp, passwdp, &krb5->identity); - if(result) - return result; - - /* Allow proper cleanup of the identity structure */ - krb5->p_identity = &krb5->identity; - } - else - /* Use the current Windows user */ - krb5->p_identity = NULL; - - /* Allocate our credentials handle */ - krb5->credentials = calloc(1, sizeof(CredHandle)); - if(!krb5->credentials) - return CURLE_OUT_OF_MEMORY; - - /* Acquire our credentials handle */ - status = s_pSecFn->AcquireCredentialsHandle(NULL, - (TCHAR *) - TEXT(SP_NAME_KERBEROS), - SECPKG_CRED_OUTBOUND, NULL, - krb5->p_identity, NULL, NULL, - krb5->credentials, &expiry); - if(status != SEC_E_OK) - return CURLE_LOGIN_DENIED; - - /* Allocate our new context handle */ - krb5->context = calloc(1, sizeof(CtxtHandle)); - if(!krb5->context) - return CURLE_OUT_OF_MEMORY; - } - - if(chlg64 && *chlg64) { - /* Decode the base-64 encoded challenge message */ - if(*chlg64 != '=') { - result = Curl_base64_decode(chlg64, &chlg, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!chlg) { - infof(data, "GSSAPI handshake failure (empty challenge message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Setup the challenge "input" security buffer */ - chlg_desc.ulVersion = SECBUFFER_VERSION; - chlg_desc.cBuffers = 1; - chlg_desc.pBuffers = &chlg_buf; - chlg_buf.BufferType = SECBUFFER_TOKEN; - chlg_buf.pvBuffer = chlg; - chlg_buf.cbBuffer = curlx_uztoul(chlglen); - } - - /* Setup the response "output" security buffer */ - resp_desc.ulVersion = SECBUFFER_VERSION; - resp_desc.cBuffers = 1; - resp_desc.pBuffers = &resp_buf; - resp_buf.BufferType = SECBUFFER_TOKEN; - resp_buf.pvBuffer = krb5->output_token; - resp_buf.cbBuffer = curlx_uztoul(krb5->token_max); - - /* Generate our challenge-response message */ - status = s_pSecFn->InitializeSecurityContext(krb5->credentials, - chlg ? krb5->context : NULL, - krb5->spn, - (mutual_auth ? - ISC_REQ_MUTUAL_AUTH : 0), - 0, SECURITY_NATIVE_DREP, - chlg ? &chlg_desc : NULL, 0, - &context, - &resp_desc, &attrs, - &expiry); - - /* Free the decoded challenge as it is not required anymore */ - free(chlg); - + } + + krb5->token_max = SecurityPackage->cbMaxToken; + + /* Release the package buffer as it is not required anymore */ + s_pSecFn->FreeContextBuffer(SecurityPackage); + + /* Allocate our response buffer */ + krb5->output_token = malloc(krb5->token_max); + if(!krb5->output_token) + return CURLE_OUT_OF_MEMORY; + } + + if(!krb5->credentials) { + /* Do we have credentials to use or are we using single sign-on? */ + if(userp && *userp) { + /* Populate our identity structure */ + result = Curl_create_sspi_identity(userp, passwdp, &krb5->identity); + if(result) + return result; + + /* Allow proper cleanup of the identity structure */ + krb5->p_identity = &krb5->identity; + } + else + /* Use the current Windows user */ + krb5->p_identity = NULL; + + /* Allocate our credentials handle */ + krb5->credentials = calloc(1, sizeof(CredHandle)); + if(!krb5->credentials) + return CURLE_OUT_OF_MEMORY; + + /* Acquire our credentials handle */ + status = s_pSecFn->AcquireCredentialsHandle(NULL, + (TCHAR *) + TEXT(SP_NAME_KERBEROS), + SECPKG_CRED_OUTBOUND, NULL, + krb5->p_identity, NULL, NULL, + krb5->credentials, &expiry); + if(status != SEC_E_OK) + return CURLE_LOGIN_DENIED; + + /* Allocate our new context handle */ + krb5->context = calloc(1, sizeof(CtxtHandle)); + if(!krb5->context) + return CURLE_OUT_OF_MEMORY; + } + + if(chlg64 && *chlg64) { + /* Decode the base-64 encoded challenge message */ + if(*chlg64 != '=') { + result = Curl_base64_decode(chlg64, &chlg, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!chlg) { + infof(data, "GSSAPI handshake failure (empty challenge message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Setup the challenge "input" security buffer */ + chlg_desc.ulVersion = SECBUFFER_VERSION; + chlg_desc.cBuffers = 1; + chlg_desc.pBuffers = &chlg_buf; + chlg_buf.BufferType = SECBUFFER_TOKEN; + chlg_buf.pvBuffer = chlg; + chlg_buf.cbBuffer = curlx_uztoul(chlglen); + } + + /* Setup the response "output" security buffer */ + resp_desc.ulVersion = SECBUFFER_VERSION; + resp_desc.cBuffers = 1; + resp_desc.pBuffers = &resp_buf; + resp_buf.BufferType = SECBUFFER_TOKEN; + resp_buf.pvBuffer = krb5->output_token; + resp_buf.cbBuffer = curlx_uztoul(krb5->token_max); + + /* Generate our challenge-response message */ + status = s_pSecFn->InitializeSecurityContext(krb5->credentials, + chlg ? krb5->context : NULL, + krb5->spn, + (mutual_auth ? + ISC_REQ_MUTUAL_AUTH : 0), + 0, SECURITY_NATIVE_DREP, + chlg ? &chlg_desc : NULL, 0, + &context, + &resp_desc, &attrs, + &expiry); + + /* Free the decoded challenge as it is not required anymore */ + free(chlg); + if(status == SEC_E_INSUFFICIENT_MEMORY) { return CURLE_OUT_OF_MEMORY; } - if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) { + if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) { return CURLE_AUTH_ERROR; - } - - if(memcmp(&context, krb5->context, sizeof(context))) { - s_pSecFn->DeleteSecurityContext(krb5->context); - - memcpy(krb5->context, &context, sizeof(context)); - } - - if(resp_buf.cbBuffer) { - /* Base64 encode the response */ - result = Curl_base64_encode(data, (char *) resp_buf.pvBuffer, - resp_buf.cbBuffer, outptr, outlen); - } - else if(mutual_auth) { - *outptr = strdup(""); - if(!*outptr) - result = CURLE_OUT_OF_MEMORY; - } - - return result; -} - -/* - * Curl_auth_create_gssapi_security_message() - * - * This is used to generate an already encoded GSSAPI (Kerberos V5) security - * token message ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * chlg64 [in] - The optional base64 encoded challenge message. - * krb5 [in/out] - The Kerberos 5 data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data, - const char *chlg64, - struct kerberos5data *krb5, - char **outptr, - size_t *outlen) -{ - CURLcode result = CURLE_OK; - size_t offset = 0; - size_t chlglen = 0; - size_t messagelen = 0; - size_t appdatalen = 0; - unsigned char *chlg = NULL; - unsigned char *trailer = NULL; - unsigned char *message = NULL; - unsigned char *padding = NULL; - unsigned char *appdata = NULL; - SecBuffer input_buf[2]; - SecBuffer wrap_buf[3]; - SecBufferDesc input_desc; - SecBufferDesc wrap_desc; - unsigned long indata = 0; - unsigned long outdata = 0; - unsigned long qop = 0; - unsigned long sec_layer = 0; - unsigned long max_size = 0; - SecPkgContext_Sizes sizes; - SecPkgCredentials_Names names; - SECURITY_STATUS status; - char *user_name; - - /* Decode the base-64 encoded input message */ - if(strlen(chlg64) && *chlg64 != '=') { - result = Curl_base64_decode(chlg64, &chlg, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!chlg) { - infof(data, "GSSAPI handshake failure (empty security message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Get our response size information */ - status = s_pSecFn->QueryContextAttributes(krb5->context, - SECPKG_ATTR_SIZES, - &sizes); - if(status != SEC_E_OK) { - free(chlg); - + } + + if(memcmp(&context, krb5->context, sizeof(context))) { + s_pSecFn->DeleteSecurityContext(krb5->context); + + memcpy(krb5->context, &context, sizeof(context)); + } + + if(resp_buf.cbBuffer) { + /* Base64 encode the response */ + result = Curl_base64_encode(data, (char *) resp_buf.pvBuffer, + resp_buf.cbBuffer, outptr, outlen); + } + else if(mutual_auth) { + *outptr = strdup(""); + if(!*outptr) + result = CURLE_OUT_OF_MEMORY; + } + + return result; +} + +/* + * Curl_auth_create_gssapi_security_message() + * + * This is used to generate an already encoded GSSAPI (Kerberos V5) security + * token message ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * chlg64 [in] - The optional base64 encoded challenge message. + * krb5 [in/out] - The Kerberos 5 data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data, + const char *chlg64, + struct kerberos5data *krb5, + char **outptr, + size_t *outlen) +{ + CURLcode result = CURLE_OK; + size_t offset = 0; + size_t chlglen = 0; + size_t messagelen = 0; + size_t appdatalen = 0; + unsigned char *chlg = NULL; + unsigned char *trailer = NULL; + unsigned char *message = NULL; + unsigned char *padding = NULL; + unsigned char *appdata = NULL; + SecBuffer input_buf[2]; + SecBuffer wrap_buf[3]; + SecBufferDesc input_desc; + SecBufferDesc wrap_desc; + unsigned long indata = 0; + unsigned long outdata = 0; + unsigned long qop = 0; + unsigned long sec_layer = 0; + unsigned long max_size = 0; + SecPkgContext_Sizes sizes; + SecPkgCredentials_Names names; + SECURITY_STATUS status; + char *user_name; + + /* Decode the base-64 encoded input message */ + if(strlen(chlg64) && *chlg64 != '=') { + result = Curl_base64_decode(chlg64, &chlg, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!chlg) { + infof(data, "GSSAPI handshake failure (empty security message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Get our response size information */ + status = s_pSecFn->QueryContextAttributes(krb5->context, + SECPKG_ATTR_SIZES, + &sizes); + if(status != SEC_E_OK) { + free(chlg); + if(status == SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - - /* Get the fully qualified username back from the context */ - status = s_pSecFn->QueryCredentialsAttributes(krb5->credentials, - SECPKG_CRED_ATTR_NAMES, - &names); - if(status != SEC_E_OK) { - free(chlg); - + } + + /* Get the fully qualified username back from the context */ + status = s_pSecFn->QueryCredentialsAttributes(krb5->credentials, + SECPKG_CRED_ATTR_NAMES, + &names); + if(status != SEC_E_OK) { + free(chlg); + if(status == SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - - /* Setup the "input" security buffer */ - input_desc.ulVersion = SECBUFFER_VERSION; - input_desc.cBuffers = 2; - input_desc.pBuffers = input_buf; - input_buf[0].BufferType = SECBUFFER_STREAM; - input_buf[0].pvBuffer = chlg; - input_buf[0].cbBuffer = curlx_uztoul(chlglen); - input_buf[1].BufferType = SECBUFFER_DATA; - input_buf[1].pvBuffer = NULL; - input_buf[1].cbBuffer = 0; - - /* Decrypt the inbound challenge and obtain the qop */ - status = s_pSecFn->DecryptMessage(krb5->context, &input_desc, 0, &qop); - if(status != SEC_E_OK) { - infof(data, "GSSAPI handshake failure (empty security message)\n"); - - free(chlg); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Not 4 octets long so fail as per RFC4752 Section 3.1 */ - if(input_buf[1].cbBuffer != 4) { - infof(data, "GSSAPI handshake failure (invalid security data)\n"); - - free(chlg); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Copy the data out and free the challenge as it is not required anymore */ - memcpy(&indata, input_buf[1].pvBuffer, 4); - s_pSecFn->FreeContextBuffer(input_buf[1].pvBuffer); - free(chlg); - - /* Extract the security layer */ - sec_layer = indata & 0x000000FF; - if(!(sec_layer & KERB_WRAP_NO_ENCRYPT)) { - infof(data, "GSSAPI handshake failure (invalid security layer)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Extract the maximum message size the server can receive */ - max_size = ntohl(indata & 0xFFFFFF00); - if(max_size > 0) { - /* The server has told us it supports a maximum receive buffer, however, as - we don't require one unless we are encrypting data, we tell the server - our receive buffer is zero. */ - max_size = 0; - } - - /* Allocate the trailer */ - trailer = malloc(sizes.cbSecurityTrailer); - if(!trailer) - return CURLE_OUT_OF_MEMORY; - - /* Convert the user name to UTF8 when operating with Unicode */ + } + + /* Setup the "input" security buffer */ + input_desc.ulVersion = SECBUFFER_VERSION; + input_desc.cBuffers = 2; + input_desc.pBuffers = input_buf; + input_buf[0].BufferType = SECBUFFER_STREAM; + input_buf[0].pvBuffer = chlg; + input_buf[0].cbBuffer = curlx_uztoul(chlglen); + input_buf[1].BufferType = SECBUFFER_DATA; + input_buf[1].pvBuffer = NULL; + input_buf[1].cbBuffer = 0; + + /* Decrypt the inbound challenge and obtain the qop */ + status = s_pSecFn->DecryptMessage(krb5->context, &input_desc, 0, &qop); + if(status != SEC_E_OK) { + infof(data, "GSSAPI handshake failure (empty security message)\n"); + + free(chlg); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Not 4 octets long so fail as per RFC4752 Section 3.1 */ + if(input_buf[1].cbBuffer != 4) { + infof(data, "GSSAPI handshake failure (invalid security data)\n"); + + free(chlg); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Copy the data out and free the challenge as it is not required anymore */ + memcpy(&indata, input_buf[1].pvBuffer, 4); + s_pSecFn->FreeContextBuffer(input_buf[1].pvBuffer); + free(chlg); + + /* Extract the security layer */ + sec_layer = indata & 0x000000FF; + if(!(sec_layer & KERB_WRAP_NO_ENCRYPT)) { + infof(data, "GSSAPI handshake failure (invalid security layer)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Extract the maximum message size the server can receive */ + max_size = ntohl(indata & 0xFFFFFF00); + if(max_size > 0) { + /* The server has told us it supports a maximum receive buffer, however, as + we don't require one unless we are encrypting data, we tell the server + our receive buffer is zero. */ + max_size = 0; + } + + /* Allocate the trailer */ + trailer = malloc(sizes.cbSecurityTrailer); + if(!trailer) + return CURLE_OUT_OF_MEMORY; + + /* Convert the user name to UTF8 when operating with Unicode */ user_name = curlx_convert_tchar_to_UTF8(names.sUserName); - if(!user_name) { - free(trailer); - - return CURLE_OUT_OF_MEMORY; - } - - /* Allocate our message */ - messagelen = sizeof(outdata) + strlen(user_name) + 1; - message = malloc(messagelen); - if(!message) { - free(trailer); + if(!user_name) { + free(trailer); + + return CURLE_OUT_OF_MEMORY; + } + + /* Allocate our message */ + messagelen = sizeof(outdata) + strlen(user_name) + 1; + message = malloc(messagelen); + if(!message) { + free(trailer); curlx_unicodefree(user_name); - - return CURLE_OUT_OF_MEMORY; - } - - /* Populate the message with the security layer, client supported receive - message size and authorization identity including the 0x00 based - terminator. Note: Despite RFC4752 Section 3.1 stating "The authorization - identity is not terminated with the zero-valued (%x00) octet." it seems - necessary to include it. */ - outdata = htonl(max_size) | sec_layer; - memcpy(message, &outdata, sizeof(outdata)); - strcpy((char *) message + sizeof(outdata), user_name); + + return CURLE_OUT_OF_MEMORY; + } + + /* Populate the message with the security layer, client supported receive + message size and authorization identity including the 0x00 based + terminator. Note: Despite RFC4752 Section 3.1 stating "The authorization + identity is not terminated with the zero-valued (%x00) octet." it seems + necessary to include it. */ + outdata = htonl(max_size) | sec_layer; + memcpy(message, &outdata, sizeof(outdata)); + strcpy((char *) message + sizeof(outdata), user_name); curlx_unicodefree(user_name); - - /* Allocate the padding */ - padding = malloc(sizes.cbBlockSize); - if(!padding) { - free(message); - free(trailer); - - return CURLE_OUT_OF_MEMORY; - } - - /* Setup the "authentication data" security buffer */ - wrap_desc.ulVersion = SECBUFFER_VERSION; - wrap_desc.cBuffers = 3; - wrap_desc.pBuffers = wrap_buf; - wrap_buf[0].BufferType = SECBUFFER_TOKEN; - wrap_buf[0].pvBuffer = trailer; - wrap_buf[0].cbBuffer = sizes.cbSecurityTrailer; - wrap_buf[1].BufferType = SECBUFFER_DATA; - wrap_buf[1].pvBuffer = message; - wrap_buf[1].cbBuffer = curlx_uztoul(messagelen); - wrap_buf[2].BufferType = SECBUFFER_PADDING; - wrap_buf[2].pvBuffer = padding; - wrap_buf[2].cbBuffer = sizes.cbBlockSize; - - /* Encrypt the data */ - status = s_pSecFn->EncryptMessage(krb5->context, KERB_WRAP_NO_ENCRYPT, - &wrap_desc, 0); - if(status != SEC_E_OK) { - free(padding); - free(message); - free(trailer); - + + /* Allocate the padding */ + padding = malloc(sizes.cbBlockSize); + if(!padding) { + free(message); + free(trailer); + + return CURLE_OUT_OF_MEMORY; + } + + /* Setup the "authentication data" security buffer */ + wrap_desc.ulVersion = SECBUFFER_VERSION; + wrap_desc.cBuffers = 3; + wrap_desc.pBuffers = wrap_buf; + wrap_buf[0].BufferType = SECBUFFER_TOKEN; + wrap_buf[0].pvBuffer = trailer; + wrap_buf[0].cbBuffer = sizes.cbSecurityTrailer; + wrap_buf[1].BufferType = SECBUFFER_DATA; + wrap_buf[1].pvBuffer = message; + wrap_buf[1].cbBuffer = curlx_uztoul(messagelen); + wrap_buf[2].BufferType = SECBUFFER_PADDING; + wrap_buf[2].pvBuffer = padding; + wrap_buf[2].cbBuffer = sizes.cbBlockSize; + + /* Encrypt the data */ + status = s_pSecFn->EncryptMessage(krb5->context, KERB_WRAP_NO_ENCRYPT, + &wrap_desc, 0); + if(status != SEC_E_OK) { + free(padding); + free(message); + free(trailer); + if(status == SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - - /* Allocate the encryption (wrap) buffer */ - appdatalen = wrap_buf[0].cbBuffer + wrap_buf[1].cbBuffer + - wrap_buf[2].cbBuffer; - appdata = malloc(appdatalen); - if(!appdata) { - free(padding); - free(message); - free(trailer); - - return CURLE_OUT_OF_MEMORY; - } - - /* Populate the encryption buffer */ - memcpy(appdata, wrap_buf[0].pvBuffer, wrap_buf[0].cbBuffer); - offset += wrap_buf[0].cbBuffer; - memcpy(appdata + offset, wrap_buf[1].pvBuffer, wrap_buf[1].cbBuffer); - offset += wrap_buf[1].cbBuffer; - memcpy(appdata + offset, wrap_buf[2].pvBuffer, wrap_buf[2].cbBuffer); - - /* Base64 encode the response */ - result = Curl_base64_encode(data, (char *) appdata, appdatalen, outptr, - outlen); - - /* Free all of our local buffers */ - free(appdata); - free(padding); - free(message); - free(trailer); - - return result; -} - -/* + } + + /* Allocate the encryption (wrap) buffer */ + appdatalen = wrap_buf[0].cbBuffer + wrap_buf[1].cbBuffer + + wrap_buf[2].cbBuffer; + appdata = malloc(appdatalen); + if(!appdata) { + free(padding); + free(message); + free(trailer); + + return CURLE_OUT_OF_MEMORY; + } + + /* Populate the encryption buffer */ + memcpy(appdata, wrap_buf[0].pvBuffer, wrap_buf[0].cbBuffer); + offset += wrap_buf[0].cbBuffer; + memcpy(appdata + offset, wrap_buf[1].pvBuffer, wrap_buf[1].cbBuffer); + offset += wrap_buf[1].cbBuffer; + memcpy(appdata + offset, wrap_buf[2].pvBuffer, wrap_buf[2].cbBuffer); + + /* Base64 encode the response */ + result = Curl_base64_encode(data, (char *) appdata, appdatalen, outptr, + outlen); + + /* Free all of our local buffers */ + free(appdata); + free(padding); + free(message); + free(trailer); + + return result; +} + +/* * Curl_auth_cleanup_gssapi() - * - * This is used to clean up the GSSAPI (Kerberos V5) specific data. - * - * Parameters: - * - * krb5 [in/out] - The Kerberos 5 data struct being cleaned up. - * - */ + * + * This is used to clean up the GSSAPI (Kerberos V5) specific data. + * + * Parameters: + * + * krb5 [in/out] - The Kerberos 5 data struct being cleaned up. + * + */ void Curl_auth_cleanup_gssapi(struct kerberos5data *krb5) -{ - /* Free our security context */ - if(krb5->context) { - s_pSecFn->DeleteSecurityContext(krb5->context); - free(krb5->context); - krb5->context = NULL; - } - - /* Free our credentials handle */ - if(krb5->credentials) { - s_pSecFn->FreeCredentialsHandle(krb5->credentials); - free(krb5->credentials); - krb5->credentials = NULL; - } - - /* Free our identity */ - Curl_sspi_free_identity(krb5->p_identity); - krb5->p_identity = NULL; - - /* Free the SPN and output token */ - Curl_safefree(krb5->spn); - Curl_safefree(krb5->output_token); - - /* Reset any variables */ - krb5->token_max = 0; -} - -#endif /* USE_WINDOWS_SSPI && USE_KERBEROS5*/ +{ + /* Free our security context */ + if(krb5->context) { + s_pSecFn->DeleteSecurityContext(krb5->context); + free(krb5->context); + krb5->context = NULL; + } + + /* Free our credentials handle */ + if(krb5->credentials) { + s_pSecFn->FreeCredentialsHandle(krb5->credentials); + free(krb5->credentials); + krb5->credentials = NULL; + } + + /* Free our identity */ + Curl_sspi_free_identity(krb5->p_identity); + krb5->p_identity = NULL; + + /* Free the SPN and output token */ + Curl_safefree(krb5->spn); + Curl_safefree(krb5->output_token); + + /* Reset any variables */ + krb5->token_max = 0; +} + +#endif /* USE_WINDOWS_SSPI && USE_KERBEROS5*/ diff --git a/contrib/libs/curl/lib/vauth/ntlm.c b/contrib/libs/curl/lib/vauth/ntlm.c index a3117f3fee..bdaca7fbce 100644 --- a/contrib/libs/curl/lib/vauth/ntlm.c +++ b/contrib/libs/curl/lib/vauth/ntlm.c @@ -1,859 +1,859 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if defined(USE_NTLM) && !defined(USE_WINDOWS_SSPI) - -/* - * NTLM details: - * - * https://davenport.sourceforge.io/ntlm.html - * https://www.innovation.ch/java/ntlm.html - */ - -#define DEBUG_ME 0 - -#include "urldata.h" -#include "non-ascii.h" -#include "sendf.h" -#include "curl_base64.h" -#include "curl_ntlm_core.h" -#include "curl_gethostname.h" -#include "curl_multibyte.h" + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(USE_NTLM) && !defined(USE_WINDOWS_SSPI) + +/* + * NTLM details: + * + * https://davenport.sourceforge.io/ntlm.html + * https://www.innovation.ch/java/ntlm.html + */ + +#define DEBUG_ME 0 + +#include "urldata.h" +#include "non-ascii.h" +#include "sendf.h" +#include "curl_base64.h" +#include "curl_ntlm_core.h" +#include "curl_gethostname.h" +#include "curl_multibyte.h" #include "curl_md5.h" -#include "warnless.h" -#include "rand.h" -#include "vtls/vtls.h" - -/* SSL backend-specific #if branches in this file must be kept in the order - documented in curl_ntlm_core. */ -#if defined(NTLM_NEEDS_NSS_INIT) -#include "vtls/nssg.h" /* for Curl_nss_force_init() */ -#endif - -#define BUILDING_CURL_NTLM_MSGS_C -#include "vauth/vauth.h" -#include "vauth/ntlm.h" -#include "curl_endian.h" -#include "curl_printf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* "NTLMSSP" signature is always in ASCII regardless of the platform */ -#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50" - -#define SHORTPAIR(x) ((int)((x) & 0xff)), ((int)(((x) >> 8) & 0xff)) -#define LONGQUARTET(x) ((int)((x) & 0xff)), ((int)(((x) >> 8) & 0xff)), \ - ((int)(((x) >> 16) & 0xff)), ((int)(((x) >> 24) & 0xff)) - -#if DEBUG_ME -# define DEBUG_OUT(x) x -static void ntlm_print_flags(FILE *handle, unsigned long flags) -{ - if(flags & NTLMFLAG_NEGOTIATE_UNICODE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_UNICODE "); - if(flags & NTLMFLAG_NEGOTIATE_OEM) - fprintf(handle, "NTLMFLAG_NEGOTIATE_OEM "); - if(flags & NTLMFLAG_REQUEST_TARGET) - fprintf(handle, "NTLMFLAG_REQUEST_TARGET "); - if(flags & (1<<3)) - fprintf(handle, "NTLMFLAG_UNKNOWN_3 "); - if(flags & NTLMFLAG_NEGOTIATE_SIGN) - fprintf(handle, "NTLMFLAG_NEGOTIATE_SIGN "); - if(flags & NTLMFLAG_NEGOTIATE_SEAL) - fprintf(handle, "NTLMFLAG_NEGOTIATE_SEAL "); - if(flags & NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE "); - if(flags & NTLMFLAG_NEGOTIATE_LM_KEY) - fprintf(handle, "NTLMFLAG_NEGOTIATE_LM_KEY "); - if(flags & NTLMFLAG_NEGOTIATE_NETWARE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_NETWARE "); - if(flags & NTLMFLAG_NEGOTIATE_NTLM_KEY) - fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM_KEY "); - if(flags & (1<<10)) - fprintf(handle, "NTLMFLAG_UNKNOWN_10 "); - if(flags & NTLMFLAG_NEGOTIATE_ANONYMOUS) - fprintf(handle, "NTLMFLAG_NEGOTIATE_ANONYMOUS "); - if(flags & NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED) - fprintf(handle, "NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED "); - if(flags & NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED) - fprintf(handle, "NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED "); - if(flags & NTLMFLAG_NEGOTIATE_LOCAL_CALL) - fprintf(handle, "NTLMFLAG_NEGOTIATE_LOCAL_CALL "); - if(flags & NTLMFLAG_NEGOTIATE_ALWAYS_SIGN) - fprintf(handle, "NTLMFLAG_NEGOTIATE_ALWAYS_SIGN "); - if(flags & NTLMFLAG_TARGET_TYPE_DOMAIN) - fprintf(handle, "NTLMFLAG_TARGET_TYPE_DOMAIN "); - if(flags & NTLMFLAG_TARGET_TYPE_SERVER) - fprintf(handle, "NTLMFLAG_TARGET_TYPE_SERVER "); - if(flags & NTLMFLAG_TARGET_TYPE_SHARE) - fprintf(handle, "NTLMFLAG_TARGET_TYPE_SHARE "); - if(flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) - fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM2_KEY "); - if(flags & NTLMFLAG_REQUEST_INIT_RESPONSE) - fprintf(handle, "NTLMFLAG_REQUEST_INIT_RESPONSE "); - if(flags & NTLMFLAG_REQUEST_ACCEPT_RESPONSE) - fprintf(handle, "NTLMFLAG_REQUEST_ACCEPT_RESPONSE "); - if(flags & NTLMFLAG_REQUEST_NONNT_SESSION_KEY) - fprintf(handle, "NTLMFLAG_REQUEST_NONNT_SESSION_KEY "); - if(flags & NTLMFLAG_NEGOTIATE_TARGET_INFO) - fprintf(handle, "NTLMFLAG_NEGOTIATE_TARGET_INFO "); - if(flags & (1<<24)) - fprintf(handle, "NTLMFLAG_UNKNOWN_24 "); - if(flags & (1<<25)) - fprintf(handle, "NTLMFLAG_UNKNOWN_25 "); - if(flags & (1<<26)) - fprintf(handle, "NTLMFLAG_UNKNOWN_26 "); - if(flags & (1<<27)) - fprintf(handle, "NTLMFLAG_UNKNOWN_27 "); - if(flags & (1<<28)) - fprintf(handle, "NTLMFLAG_UNKNOWN_28 "); - if(flags & NTLMFLAG_NEGOTIATE_128) - fprintf(handle, "NTLMFLAG_NEGOTIATE_128 "); - if(flags & NTLMFLAG_NEGOTIATE_KEY_EXCHANGE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_KEY_EXCHANGE "); - if(flags & NTLMFLAG_NEGOTIATE_56) - fprintf(handle, "NTLMFLAG_NEGOTIATE_56 "); -} - -static void ntlm_print_hex(FILE *handle, const char *buf, size_t len) -{ - const char *p = buf; - - (void) handle; - - fprintf(stderr, "0x"); - while(len-- > 0) - fprintf(stderr, "%02.2x", (unsigned int)*p++); -} -#else -# define DEBUG_OUT(x) Curl_nop_stmt -#endif - -/* - * ntlm_decode_type2_target() - * - * This is used to decode the "target info" in the NTLM type-2 message - * received. - * - * Parameters: - * - * data [in] - The session handle. - * buffer [in] - The decoded type-2 message. - * size [in] - The input buffer size, at least 32 bytes. - * ntlm [in/out] - The NTLM data struct being used and modified. - * - * Returns CURLE_OK on success. - */ -static CURLcode ntlm_decode_type2_target(struct Curl_easy *data, - unsigned char *buffer, - size_t size, - struct ntlmdata *ntlm) -{ - unsigned short target_info_len = 0; - unsigned int target_info_offset = 0; - -#if defined(CURL_DISABLE_VERBOSE_STRINGS) - (void) data; -#endif - - if(size >= 48) { - target_info_len = Curl_read16_le(&buffer[40]); - target_info_offset = Curl_read32_le(&buffer[44]); - if(target_info_len > 0) { +#include "warnless.h" +#include "rand.h" +#include "vtls/vtls.h" + +/* SSL backend-specific #if branches in this file must be kept in the order + documented in curl_ntlm_core. */ +#if defined(NTLM_NEEDS_NSS_INIT) +#include "vtls/nssg.h" /* for Curl_nss_force_init() */ +#endif + +#define BUILDING_CURL_NTLM_MSGS_C +#include "vauth/vauth.h" +#include "vauth/ntlm.h" +#include "curl_endian.h" +#include "curl_printf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* "NTLMSSP" signature is always in ASCII regardless of the platform */ +#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50" + +#define SHORTPAIR(x) ((int)((x) & 0xff)), ((int)(((x) >> 8) & 0xff)) +#define LONGQUARTET(x) ((int)((x) & 0xff)), ((int)(((x) >> 8) & 0xff)), \ + ((int)(((x) >> 16) & 0xff)), ((int)(((x) >> 24) & 0xff)) + +#if DEBUG_ME +# define DEBUG_OUT(x) x +static void ntlm_print_flags(FILE *handle, unsigned long flags) +{ + if(flags & NTLMFLAG_NEGOTIATE_UNICODE) + fprintf(handle, "NTLMFLAG_NEGOTIATE_UNICODE "); + if(flags & NTLMFLAG_NEGOTIATE_OEM) + fprintf(handle, "NTLMFLAG_NEGOTIATE_OEM "); + if(flags & NTLMFLAG_REQUEST_TARGET) + fprintf(handle, "NTLMFLAG_REQUEST_TARGET "); + if(flags & (1<<3)) + fprintf(handle, "NTLMFLAG_UNKNOWN_3 "); + if(flags & NTLMFLAG_NEGOTIATE_SIGN) + fprintf(handle, "NTLMFLAG_NEGOTIATE_SIGN "); + if(flags & NTLMFLAG_NEGOTIATE_SEAL) + fprintf(handle, "NTLMFLAG_NEGOTIATE_SEAL "); + if(flags & NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE) + fprintf(handle, "NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE "); + if(flags & NTLMFLAG_NEGOTIATE_LM_KEY) + fprintf(handle, "NTLMFLAG_NEGOTIATE_LM_KEY "); + if(flags & NTLMFLAG_NEGOTIATE_NETWARE) + fprintf(handle, "NTLMFLAG_NEGOTIATE_NETWARE "); + if(flags & NTLMFLAG_NEGOTIATE_NTLM_KEY) + fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM_KEY "); + if(flags & (1<<10)) + fprintf(handle, "NTLMFLAG_UNKNOWN_10 "); + if(flags & NTLMFLAG_NEGOTIATE_ANONYMOUS) + fprintf(handle, "NTLMFLAG_NEGOTIATE_ANONYMOUS "); + if(flags & NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED) + fprintf(handle, "NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED "); + if(flags & NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED) + fprintf(handle, "NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED "); + if(flags & NTLMFLAG_NEGOTIATE_LOCAL_CALL) + fprintf(handle, "NTLMFLAG_NEGOTIATE_LOCAL_CALL "); + if(flags & NTLMFLAG_NEGOTIATE_ALWAYS_SIGN) + fprintf(handle, "NTLMFLAG_NEGOTIATE_ALWAYS_SIGN "); + if(flags & NTLMFLAG_TARGET_TYPE_DOMAIN) + fprintf(handle, "NTLMFLAG_TARGET_TYPE_DOMAIN "); + if(flags & NTLMFLAG_TARGET_TYPE_SERVER) + fprintf(handle, "NTLMFLAG_TARGET_TYPE_SERVER "); + if(flags & NTLMFLAG_TARGET_TYPE_SHARE) + fprintf(handle, "NTLMFLAG_TARGET_TYPE_SHARE "); + if(flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) + fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM2_KEY "); + if(flags & NTLMFLAG_REQUEST_INIT_RESPONSE) + fprintf(handle, "NTLMFLAG_REQUEST_INIT_RESPONSE "); + if(flags & NTLMFLAG_REQUEST_ACCEPT_RESPONSE) + fprintf(handle, "NTLMFLAG_REQUEST_ACCEPT_RESPONSE "); + if(flags & NTLMFLAG_REQUEST_NONNT_SESSION_KEY) + fprintf(handle, "NTLMFLAG_REQUEST_NONNT_SESSION_KEY "); + if(flags & NTLMFLAG_NEGOTIATE_TARGET_INFO) + fprintf(handle, "NTLMFLAG_NEGOTIATE_TARGET_INFO "); + if(flags & (1<<24)) + fprintf(handle, "NTLMFLAG_UNKNOWN_24 "); + if(flags & (1<<25)) + fprintf(handle, "NTLMFLAG_UNKNOWN_25 "); + if(flags & (1<<26)) + fprintf(handle, "NTLMFLAG_UNKNOWN_26 "); + if(flags & (1<<27)) + fprintf(handle, "NTLMFLAG_UNKNOWN_27 "); + if(flags & (1<<28)) + fprintf(handle, "NTLMFLAG_UNKNOWN_28 "); + if(flags & NTLMFLAG_NEGOTIATE_128) + fprintf(handle, "NTLMFLAG_NEGOTIATE_128 "); + if(flags & NTLMFLAG_NEGOTIATE_KEY_EXCHANGE) + fprintf(handle, "NTLMFLAG_NEGOTIATE_KEY_EXCHANGE "); + if(flags & NTLMFLAG_NEGOTIATE_56) + fprintf(handle, "NTLMFLAG_NEGOTIATE_56 "); +} + +static void ntlm_print_hex(FILE *handle, const char *buf, size_t len) +{ + const char *p = buf; + + (void) handle; + + fprintf(stderr, "0x"); + while(len-- > 0) + fprintf(stderr, "%02.2x", (unsigned int)*p++); +} +#else +# define DEBUG_OUT(x) Curl_nop_stmt +#endif + +/* + * ntlm_decode_type2_target() + * + * This is used to decode the "target info" in the NTLM type-2 message + * received. + * + * Parameters: + * + * data [in] - The session handle. + * buffer [in] - The decoded type-2 message. + * size [in] - The input buffer size, at least 32 bytes. + * ntlm [in/out] - The NTLM data struct being used and modified. + * + * Returns CURLE_OK on success. + */ +static CURLcode ntlm_decode_type2_target(struct Curl_easy *data, + unsigned char *buffer, + size_t size, + struct ntlmdata *ntlm) +{ + unsigned short target_info_len = 0; + unsigned int target_info_offset = 0; + +#if defined(CURL_DISABLE_VERBOSE_STRINGS) + (void) data; +#endif + + if(size >= 48) { + target_info_len = Curl_read16_le(&buffer[40]); + target_info_offset = Curl_read32_le(&buffer[44]); + if(target_info_len > 0) { if((target_info_offset >= size) || ((target_info_offset + target_info_len) > size) || - (target_info_offset < 48)) { - infof(data, "NTLM handshake failure (bad type-2 message). " + (target_info_offset < 48)) { + infof(data, "NTLM handshake failure (bad type-2 message). " "Target Info Offset Len is set incorrect by the peer\n"); - return CURLE_BAD_CONTENT_ENCODING; - } - + return CURLE_BAD_CONTENT_ENCODING; + } + free(ntlm->target_info); /* replace any previous data */ - ntlm->target_info = malloc(target_info_len); - if(!ntlm->target_info) - return CURLE_OUT_OF_MEMORY; - - memcpy(ntlm->target_info, &buffer[target_info_offset], target_info_len); - } - } - - ntlm->target_info_len = target_info_len; - - return CURLE_OK; -} - -/* - NTLM message structure notes: - - A 'short' is a 'network short', a little-endian 16-bit unsigned value. - - A 'long' is a 'network long', a little-endian, 32-bit unsigned value. - - A 'security buffer' represents a triplet used to point to a buffer, - consisting of two shorts and one long: - - 1. A 'short' containing the length of the buffer content in bytes. - 2. A 'short' containing the allocated space for the buffer in bytes. - 3. A 'long' containing the offset to the start of the buffer in bytes, - from the beginning of the NTLM message. -*/ - -/* - * Curl_auth_is_ntlm_supported() - * - * This is used to evaluate if NTLM is supported. - * - * Parameters: None - * - * Returns TRUE as NTLM as handled by libcurl. - */ -bool Curl_auth_is_ntlm_supported(void) -{ - return TRUE; -} - -/* - * Curl_auth_decode_ntlm_type2_message() - * - * This is used to decode an already encoded NTLM type-2 message. The message - * is first decoded from a base64 string into a raw NTLM message and checked - * for validity before the appropriate data for creating a type-3 message is - * written to the given NTLM data structure. - * - * Parameters: - * - * data [in] - The session handle. - * type2msg [in] - The base64 encoded type-2 message. - * ntlm [in/out] - The NTLM data struct being used and modified. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data, - const char *type2msg, - struct ntlmdata *ntlm) -{ - static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 }; - - /* NTLM type-2 message structure: - - Index Description Content - 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" - (0x4e544c4d53535000) - 8 NTLM Message Type long (0x02000000) - 12 Target Name security buffer - 20 Flags long - 24 Challenge 8 bytes - (32) Context 8 bytes (two consecutive longs) (*) - (40) Target Information security buffer (*) - (48) OS Version Structure 8 bytes (*) - 32 (48) (56) Start of data block (*) - (*) -> Optional - */ - - CURLcode result = CURLE_OK; - unsigned char *type2 = NULL; - size_t type2_len = 0; - -#if defined(NTLM_NEEDS_NSS_INIT) - /* Make sure the crypto backend is initialized */ - result = Curl_nss_force_init(data); - if(result) - return result; -#elif defined(CURL_DISABLE_VERBOSE_STRINGS) - (void)data; -#endif - - /* Decode the base-64 encoded type-2 message */ - if(strlen(type2msg) && *type2msg != '=') { - result = Curl_base64_decode(type2msg, &type2, &type2_len); - if(result) - return result; - } - - /* Ensure we have a valid type-2 message */ - if(!type2) { - infof(data, "NTLM handshake failure (empty type-2 message)\n"); - return CURLE_BAD_CONTENT_ENCODING; - } - - ntlm->flags = 0; - - if((type2_len < 32) || - (memcmp(type2, NTLMSSP_SIGNATURE, 8) != 0) || - (memcmp(type2 + 8, type2_marker, sizeof(type2_marker)) != 0)) { - /* This was not a good enough type-2 message */ - free(type2); - infof(data, "NTLM handshake failure (bad type-2 message)\n"); - return CURLE_BAD_CONTENT_ENCODING; - } - - ntlm->flags = Curl_read32_le(&type2[20]); - memcpy(ntlm->nonce, &type2[24], 8); - - if(ntlm->flags & NTLMFLAG_NEGOTIATE_TARGET_INFO) { - result = ntlm_decode_type2_target(data, type2, type2_len, ntlm); - if(result) { - free(type2); - infof(data, "NTLM handshake failure (bad type-2 message)\n"); - return result; - } - } - - DEBUG_OUT({ - fprintf(stderr, "**** TYPE2 header flags=0x%08.8lx ", ntlm->flags); - ntlm_print_flags(stderr, ntlm->flags); - fprintf(stderr, "\n nonce="); - ntlm_print_hex(stderr, (char *)ntlm->nonce, 8); - fprintf(stderr, "\n****\n"); - fprintf(stderr, "**** Header %s\n ", header); - }); - - free(type2); - - return result; -} - -/* copy the source to the destination and fill in zeroes in every - other destination byte! */ -static void unicodecpy(unsigned char *dest, const char *src, size_t length) -{ - size_t i; - for(i = 0; i < length; i++) { - dest[2 * i] = (unsigned char)src[i]; - dest[2 * i + 1] = '\0'; - } -} - -/* - * Curl_auth_create_ntlm_type1_message() - * - * This is used to generate an already encoded NTLM type-1 message ready for - * sending to the recipient using the appropriate compile time crypto API. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * host [in] - The host name. - * ntlm [in/out] - The NTLM data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const char *service, - const char *hostname, - struct ntlmdata *ntlm, - char **outptr, size_t *outlen) -{ - /* NTLM type-1 message structure: - - Index Description Content - 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" - (0x4e544c4d53535000) - 8 NTLM Message Type long (0x01000000) - 12 Flags long - (16) Supplied Domain security buffer (*) - (24) Supplied Workstation security buffer (*) - (32) OS Version Structure 8 bytes (*) - (32) (40) Start of data block (*) - (*) -> Optional - */ - - size_t size; - - unsigned char ntlmbuf[NTLM_BUFSIZE]; - const char *host = ""; /* empty */ - const char *domain = ""; /* empty */ - size_t hostlen = 0; - size_t domlen = 0; - size_t hostoff = 0; - size_t domoff = hostoff + hostlen; /* This is 0: remember that host and - domain are empty */ - (void)userp; - (void)passwdp; - (void)service, - (void)hostname, - - /* Clean up any former leftovers and initialise to defaults */ + ntlm->target_info = malloc(target_info_len); + if(!ntlm->target_info) + return CURLE_OUT_OF_MEMORY; + + memcpy(ntlm->target_info, &buffer[target_info_offset], target_info_len); + } + } + + ntlm->target_info_len = target_info_len; + + return CURLE_OK; +} + +/* + NTLM message structure notes: + + A 'short' is a 'network short', a little-endian 16-bit unsigned value. + + A 'long' is a 'network long', a little-endian, 32-bit unsigned value. + + A 'security buffer' represents a triplet used to point to a buffer, + consisting of two shorts and one long: + + 1. A 'short' containing the length of the buffer content in bytes. + 2. A 'short' containing the allocated space for the buffer in bytes. + 3. A 'long' containing the offset to the start of the buffer in bytes, + from the beginning of the NTLM message. +*/ + +/* + * Curl_auth_is_ntlm_supported() + * + * This is used to evaluate if NTLM is supported. + * + * Parameters: None + * + * Returns TRUE as NTLM as handled by libcurl. + */ +bool Curl_auth_is_ntlm_supported(void) +{ + return TRUE; +} + +/* + * Curl_auth_decode_ntlm_type2_message() + * + * This is used to decode an already encoded NTLM type-2 message. The message + * is first decoded from a base64 string into a raw NTLM message and checked + * for validity before the appropriate data for creating a type-3 message is + * written to the given NTLM data structure. + * + * Parameters: + * + * data [in] - The session handle. + * type2msg [in] - The base64 encoded type-2 message. + * ntlm [in/out] - The NTLM data struct being used and modified. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data, + const char *type2msg, + struct ntlmdata *ntlm) +{ + static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 }; + + /* NTLM type-2 message structure: + + Index Description Content + 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" + (0x4e544c4d53535000) + 8 NTLM Message Type long (0x02000000) + 12 Target Name security buffer + 20 Flags long + 24 Challenge 8 bytes + (32) Context 8 bytes (two consecutive longs) (*) + (40) Target Information security buffer (*) + (48) OS Version Structure 8 bytes (*) + 32 (48) (56) Start of data block (*) + (*) -> Optional + */ + + CURLcode result = CURLE_OK; + unsigned char *type2 = NULL; + size_t type2_len = 0; + +#if defined(NTLM_NEEDS_NSS_INIT) + /* Make sure the crypto backend is initialized */ + result = Curl_nss_force_init(data); + if(result) + return result; +#elif defined(CURL_DISABLE_VERBOSE_STRINGS) + (void)data; +#endif + + /* Decode the base-64 encoded type-2 message */ + if(strlen(type2msg) && *type2msg != '=') { + result = Curl_base64_decode(type2msg, &type2, &type2_len); + if(result) + return result; + } + + /* Ensure we have a valid type-2 message */ + if(!type2) { + infof(data, "NTLM handshake failure (empty type-2 message)\n"); + return CURLE_BAD_CONTENT_ENCODING; + } + + ntlm->flags = 0; + + if((type2_len < 32) || + (memcmp(type2, NTLMSSP_SIGNATURE, 8) != 0) || + (memcmp(type2 + 8, type2_marker, sizeof(type2_marker)) != 0)) { + /* This was not a good enough type-2 message */ + free(type2); + infof(data, "NTLM handshake failure (bad type-2 message)\n"); + return CURLE_BAD_CONTENT_ENCODING; + } + + ntlm->flags = Curl_read32_le(&type2[20]); + memcpy(ntlm->nonce, &type2[24], 8); + + if(ntlm->flags & NTLMFLAG_NEGOTIATE_TARGET_INFO) { + result = ntlm_decode_type2_target(data, type2, type2_len, ntlm); + if(result) { + free(type2); + infof(data, "NTLM handshake failure (bad type-2 message)\n"); + return result; + } + } + + DEBUG_OUT({ + fprintf(stderr, "**** TYPE2 header flags=0x%08.8lx ", ntlm->flags); + ntlm_print_flags(stderr, ntlm->flags); + fprintf(stderr, "\n nonce="); + ntlm_print_hex(stderr, (char *)ntlm->nonce, 8); + fprintf(stderr, "\n****\n"); + fprintf(stderr, "**** Header %s\n ", header); + }); + + free(type2); + + return result; +} + +/* copy the source to the destination and fill in zeroes in every + other destination byte! */ +static void unicodecpy(unsigned char *dest, const char *src, size_t length) +{ + size_t i; + for(i = 0; i < length; i++) { + dest[2 * i] = (unsigned char)src[i]; + dest[2 * i + 1] = '\0'; + } +} + +/* + * Curl_auth_create_ntlm_type1_message() + * + * This is used to generate an already encoded NTLM type-1 message ready for + * sending to the recipient using the appropriate compile time crypto API. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * host [in] - The host name. + * ntlm [in/out] - The NTLM data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const char *service, + const char *hostname, + struct ntlmdata *ntlm, + char **outptr, size_t *outlen) +{ + /* NTLM type-1 message structure: + + Index Description Content + 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" + (0x4e544c4d53535000) + 8 NTLM Message Type long (0x01000000) + 12 Flags long + (16) Supplied Domain security buffer (*) + (24) Supplied Workstation security buffer (*) + (32) OS Version Structure 8 bytes (*) + (32) (40) Start of data block (*) + (*) -> Optional + */ + + size_t size; + + unsigned char ntlmbuf[NTLM_BUFSIZE]; + const char *host = ""; /* empty */ + const char *domain = ""; /* empty */ + size_t hostlen = 0; + size_t domlen = 0; + size_t hostoff = 0; + size_t domoff = hostoff + hostlen; /* This is 0: remember that host and + domain are empty */ + (void)userp; + (void)passwdp; + (void)service, + (void)hostname, + + /* Clean up any former leftovers and initialise to defaults */ Curl_auth_cleanup_ntlm(ntlm); - -#if defined(USE_NTRESPONSES) && defined(USE_NTLM2SESSION) -#define NTLM2FLAG NTLMFLAG_NEGOTIATE_NTLM2_KEY -#else -#define NTLM2FLAG 0 -#endif - msnprintf((char *)ntlmbuf, NTLM_BUFSIZE, - NTLMSSP_SIGNATURE "%c" - "\x01%c%c%c" /* 32-bit type = 1 */ - "%c%c%c%c" /* 32-bit NTLM flag field */ - "%c%c" /* domain length */ - "%c%c" /* domain allocated space */ - "%c%c" /* domain name offset */ - "%c%c" /* 2 zeroes */ - "%c%c" /* host length */ - "%c%c" /* host allocated space */ - "%c%c" /* host name offset */ - "%c%c" /* 2 zeroes */ - "%s" /* host name */ - "%s", /* domain string */ - 0, /* trailing zero */ - 0, 0, 0, /* part of type-1 long */ - - LONGQUARTET(NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN), - SHORTPAIR(domlen), - SHORTPAIR(domlen), - SHORTPAIR(domoff), - 0, 0, - SHORTPAIR(hostlen), - SHORTPAIR(hostlen), - SHORTPAIR(hostoff), - 0, 0, - host, /* this is empty */ - domain /* this is empty */); - - /* Initial packet length */ - size = 32 + hostlen + domlen; - - DEBUG_OUT({ - fprintf(stderr, "* TYPE1 header flags=0x%02.2x%02.2x%02.2x%02.2x " - "0x%08.8x ", - LONGQUARTET(NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN), - NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); - ntlm_print_flags(stderr, - NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); - fprintf(stderr, "\n****\n"); - }); - - /* Return with binary blob encoded into base64 */ - return Curl_base64_encode(data, (char *)ntlmbuf, size, outptr, outlen); -} - -/* - * Curl_auth_create_ntlm_type3_message() - * - * This is used to generate an already encoded NTLM type-3 message ready for - * sending to the recipient using the appropriate compile time crypto API. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * ntlm [in/out] - The NTLM data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - struct ntlmdata *ntlm, - char **outptr, size_t *outlen) -{ - /* NTLM type-3 message structure: - - Index Description Content - 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" - (0x4e544c4d53535000) - 8 NTLM Message Type long (0x03000000) - 12 LM/LMv2 Response security buffer - 20 NTLM/NTLMv2 Response security buffer - 28 Target Name security buffer - 36 User Name security buffer - 44 Workstation Name security buffer - (52) Session Key security buffer (*) - (60) Flags long (*) - (64) OS Version Structure 8 bytes (*) - 52 (64) (72) Start of data block - (*) -> Optional - */ - - CURLcode result = CURLE_OK; - size_t size; - unsigned char ntlmbuf[NTLM_BUFSIZE]; - int lmrespoff; - unsigned char lmresp[24]; /* fixed-size */ -#ifdef USE_NTRESPONSES - int ntrespoff; - unsigned int ntresplen = 24; - unsigned char ntresp[24]; /* fixed-size */ - unsigned char *ptr_ntresp = &ntresp[0]; - unsigned char *ntlmv2resp = NULL; -#endif - bool unicode = (ntlm->flags & NTLMFLAG_NEGOTIATE_UNICODE) ? TRUE : FALSE; - char host[HOSTNAME_MAX + 1] = ""; - const char *user; - const char *domain = ""; - size_t hostoff = 0; - size_t useroff = 0; - size_t domoff = 0; - size_t hostlen = 0; - size_t userlen = 0; - size_t domlen = 0; - - user = strchr(userp, '\\'); - if(!user) - user = strchr(userp, '/'); - - if(user) { - domain = userp; - domlen = (user - domain); - user++; - } - else - user = userp; - - userlen = strlen(user); - - /* Get the machine's un-qualified host name as NTLM doesn't like the fully - qualified domain name */ - if(Curl_gethostname(host, sizeof(host))) { - infof(data, "gethostname() failed, continuing without!\n"); - hostlen = 0; - } - else { - hostlen = strlen(host); - } - -#if defined(USE_NTRESPONSES) && defined(USE_NTLM_V2) + +#if defined(USE_NTRESPONSES) && defined(USE_NTLM2SESSION) +#define NTLM2FLAG NTLMFLAG_NEGOTIATE_NTLM2_KEY +#else +#define NTLM2FLAG 0 +#endif + msnprintf((char *)ntlmbuf, NTLM_BUFSIZE, + NTLMSSP_SIGNATURE "%c" + "\x01%c%c%c" /* 32-bit type = 1 */ + "%c%c%c%c" /* 32-bit NTLM flag field */ + "%c%c" /* domain length */ + "%c%c" /* domain allocated space */ + "%c%c" /* domain name offset */ + "%c%c" /* 2 zeroes */ + "%c%c" /* host length */ + "%c%c" /* host allocated space */ + "%c%c" /* host name offset */ + "%c%c" /* 2 zeroes */ + "%s" /* host name */ + "%s", /* domain string */ + 0, /* trailing zero */ + 0, 0, 0, /* part of type-1 long */ + + LONGQUARTET(NTLMFLAG_NEGOTIATE_OEM | + NTLMFLAG_REQUEST_TARGET | + NTLMFLAG_NEGOTIATE_NTLM_KEY | + NTLM2FLAG | + NTLMFLAG_NEGOTIATE_ALWAYS_SIGN), + SHORTPAIR(domlen), + SHORTPAIR(domlen), + SHORTPAIR(domoff), + 0, 0, + SHORTPAIR(hostlen), + SHORTPAIR(hostlen), + SHORTPAIR(hostoff), + 0, 0, + host, /* this is empty */ + domain /* this is empty */); + + /* Initial packet length */ + size = 32 + hostlen + domlen; + + DEBUG_OUT({ + fprintf(stderr, "* TYPE1 header flags=0x%02.2x%02.2x%02.2x%02.2x " + "0x%08.8x ", + LONGQUARTET(NTLMFLAG_NEGOTIATE_OEM | + NTLMFLAG_REQUEST_TARGET | + NTLMFLAG_NEGOTIATE_NTLM_KEY | + NTLM2FLAG | + NTLMFLAG_NEGOTIATE_ALWAYS_SIGN), + NTLMFLAG_NEGOTIATE_OEM | + NTLMFLAG_REQUEST_TARGET | + NTLMFLAG_NEGOTIATE_NTLM_KEY | + NTLM2FLAG | + NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); + ntlm_print_flags(stderr, + NTLMFLAG_NEGOTIATE_OEM | + NTLMFLAG_REQUEST_TARGET | + NTLMFLAG_NEGOTIATE_NTLM_KEY | + NTLM2FLAG | + NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); + fprintf(stderr, "\n****\n"); + }); + + /* Return with binary blob encoded into base64 */ + return Curl_base64_encode(data, (char *)ntlmbuf, size, outptr, outlen); +} + +/* + * Curl_auth_create_ntlm_type3_message() + * + * This is used to generate an already encoded NTLM type-3 message ready for + * sending to the recipient using the appropriate compile time crypto API. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * ntlm [in/out] - The NTLM data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + struct ntlmdata *ntlm, + char **outptr, size_t *outlen) +{ + /* NTLM type-3 message structure: + + Index Description Content + 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" + (0x4e544c4d53535000) + 8 NTLM Message Type long (0x03000000) + 12 LM/LMv2 Response security buffer + 20 NTLM/NTLMv2 Response security buffer + 28 Target Name security buffer + 36 User Name security buffer + 44 Workstation Name security buffer + (52) Session Key security buffer (*) + (60) Flags long (*) + (64) OS Version Structure 8 bytes (*) + 52 (64) (72) Start of data block + (*) -> Optional + */ + + CURLcode result = CURLE_OK; + size_t size; + unsigned char ntlmbuf[NTLM_BUFSIZE]; + int lmrespoff; + unsigned char lmresp[24]; /* fixed-size */ +#ifdef USE_NTRESPONSES + int ntrespoff; + unsigned int ntresplen = 24; + unsigned char ntresp[24]; /* fixed-size */ + unsigned char *ptr_ntresp = &ntresp[0]; + unsigned char *ntlmv2resp = NULL; +#endif + bool unicode = (ntlm->flags & NTLMFLAG_NEGOTIATE_UNICODE) ? TRUE : FALSE; + char host[HOSTNAME_MAX + 1] = ""; + const char *user; + const char *domain = ""; + size_t hostoff = 0; + size_t useroff = 0; + size_t domoff = 0; + size_t hostlen = 0; + size_t userlen = 0; + size_t domlen = 0; + + user = strchr(userp, '\\'); + if(!user) + user = strchr(userp, '/'); + + if(user) { + domain = userp; + domlen = (user - domain); + user++; + } + else + user = userp; + + userlen = strlen(user); + + /* Get the machine's un-qualified host name as NTLM doesn't like the fully + qualified domain name */ + if(Curl_gethostname(host, sizeof(host))) { + infof(data, "gethostname() failed, continuing without!\n"); + hostlen = 0; + } + else { + hostlen = strlen(host); + } + +#if defined(USE_NTRESPONSES) && defined(USE_NTLM_V2) if(ntlm->flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) { - unsigned char ntbuffer[0x18]; - unsigned char entropy[8]; - unsigned char ntlmv2hash[0x18]; - - result = Curl_rand(data, entropy, 8); - if(result) - return result; - - result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer); - if(result) - return result; - - result = Curl_ntlm_core_mk_ntlmv2_hash(user, userlen, domain, domlen, - ntbuffer, ntlmv2hash); - if(result) - return result; - - /* LMv2 response */ - result = Curl_ntlm_core_mk_lmv2_resp(ntlmv2hash, entropy, - &ntlm->nonce[0], lmresp); - if(result) - return result; - - /* NTLMv2 response */ - result = Curl_ntlm_core_mk_ntlmv2_resp(ntlmv2hash, entropy, - ntlm, &ntlmv2resp, &ntresplen); - if(result) - return result; - - ptr_ntresp = ntlmv2resp; - } - else -#endif - -#if defined(USE_NTRESPONSES) && defined(USE_NTLM2SESSION) + unsigned char ntbuffer[0x18]; + unsigned char entropy[8]; + unsigned char ntlmv2hash[0x18]; + + result = Curl_rand(data, entropy, 8); + if(result) + return result; + + result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer); + if(result) + return result; + + result = Curl_ntlm_core_mk_ntlmv2_hash(user, userlen, domain, domlen, + ntbuffer, ntlmv2hash); + if(result) + return result; + + /* LMv2 response */ + result = Curl_ntlm_core_mk_lmv2_resp(ntlmv2hash, entropy, + &ntlm->nonce[0], lmresp); + if(result) + return result; + + /* NTLMv2 response */ + result = Curl_ntlm_core_mk_ntlmv2_resp(ntlmv2hash, entropy, + ntlm, &ntlmv2resp, &ntresplen); + if(result) + return result; + + ptr_ntresp = ntlmv2resp; + } + else +#endif + +#if defined(USE_NTRESPONSES) && defined(USE_NTLM2SESSION) #define CURL_MD5_DIGEST_LENGTH 16 /* fixed size */ - /* We don't support NTLM2 if we don't have USE_NTRESPONSES */ + /* We don't support NTLM2 if we don't have USE_NTRESPONSES */ if(ntlm->flags & NTLMFLAG_NEGOTIATE_NTLM_KEY) { - unsigned char ntbuffer[0x18]; - unsigned char tmp[0x18]; + unsigned char ntbuffer[0x18]; + unsigned char tmp[0x18]; unsigned char md5sum[CURL_MD5_DIGEST_LENGTH]; - unsigned char entropy[8]; - - /* Need to create 8 bytes random data */ - result = Curl_rand(data, entropy, 8); - if(result) - return result; - - /* 8 bytes random data as challenge in lmresp */ - memcpy(lmresp, entropy, 8); - - /* Pad with zeros */ - memset(lmresp + 8, 0, 0x10); - - /* Fill tmp with challenge(nonce?) + entropy */ - memcpy(tmp, &ntlm->nonce[0], 8); - memcpy(tmp + 8, entropy, 8); - + unsigned char entropy[8]; + + /* Need to create 8 bytes random data */ + result = Curl_rand(data, entropy, 8); + if(result) + return result; + + /* 8 bytes random data as challenge in lmresp */ + memcpy(lmresp, entropy, 8); + + /* Pad with zeros */ + memset(lmresp + 8, 0, 0x10); + + /* Fill tmp with challenge(nonce?) + entropy */ + memcpy(tmp, &ntlm->nonce[0], 8); + memcpy(tmp + 8, entropy, 8); + Curl_md5it(md5sum, tmp, 16); /* We shall only use the first 8 bytes of md5sum, but the des code in Curl_ntlm_core_lm_resp only encrypt the first 8 bytes */ result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer); - if(result) - return result; - - Curl_ntlm_core_lm_resp(ntbuffer, md5sum, ntresp); - - /* End of NTLM2 Session code */ + if(result) + return result; + + Curl_ntlm_core_lm_resp(ntbuffer, md5sum, ntresp); + + /* End of NTLM2 Session code */ /* NTLM v2 session security is a misnomer because it is not NTLM v2. It is NTLM v1 using the extended session security that is also in NTLM v2 */ - } - else -#endif - { - -#ifdef USE_NTRESPONSES - unsigned char ntbuffer[0x18]; -#endif - unsigned char lmbuffer[0x18]; - -#ifdef USE_NTRESPONSES - result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer); - if(result) - return result; - - Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], ntresp); -#endif - - result = Curl_ntlm_core_mk_lm_hash(data, passwdp, lmbuffer); - if(result) - return result; - - Curl_ntlm_core_lm_resp(lmbuffer, &ntlm->nonce[0], lmresp); - - /* A safer but less compatible alternative is: - * Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], lmresp); - * See https://davenport.sourceforge.io/ntlm.html#ntlmVersion2 */ - } - - if(unicode) { - domlen = domlen * 2; - userlen = userlen * 2; - hostlen = hostlen * 2; - } - - lmrespoff = 64; /* size of the message header */ -#ifdef USE_NTRESPONSES - ntrespoff = lmrespoff + 0x18; - domoff = ntrespoff + ntresplen; -#else - domoff = lmrespoff + 0x18; -#endif - useroff = domoff + domlen; - hostoff = useroff + userlen; - - /* Create the big type-3 message binary blob */ - size = msnprintf((char *)ntlmbuf, NTLM_BUFSIZE, - NTLMSSP_SIGNATURE "%c" - "\x03%c%c%c" /* 32-bit type = 3 */ - - "%c%c" /* LanManager length */ - "%c%c" /* LanManager allocated space */ - "%c%c" /* LanManager offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* NT-response length */ - "%c%c" /* NT-response allocated space */ - "%c%c" /* NT-response offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* domain length */ - "%c%c" /* domain allocated space */ - "%c%c" /* domain name offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* user length */ - "%c%c" /* user allocated space */ - "%c%c" /* user offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* host length */ - "%c%c" /* host allocated space */ - "%c%c" /* host offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* session key length (unknown purpose) */ - "%c%c" /* session key allocated space (unknown purpose) */ - "%c%c" /* session key offset (unknown purpose) */ - "%c%c" /* 2 zeroes */ - - "%c%c%c%c", /* flags */ - - /* domain string */ - /* user string */ - /* host string */ - /* LanManager response */ - /* NT response */ - - 0, /* zero termination */ - 0, 0, 0, /* type-3 long, the 24 upper bits */ - - SHORTPAIR(0x18), /* LanManager response length, twice */ - SHORTPAIR(0x18), - SHORTPAIR(lmrespoff), - 0x0, 0x0, - -#ifdef USE_NTRESPONSES - SHORTPAIR(ntresplen), /* NT-response length, twice */ - SHORTPAIR(ntresplen), - SHORTPAIR(ntrespoff), - 0x0, 0x0, -#else - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, -#endif - SHORTPAIR(domlen), - SHORTPAIR(domlen), - SHORTPAIR(domoff), - 0x0, 0x0, - - SHORTPAIR(userlen), - SHORTPAIR(userlen), - SHORTPAIR(useroff), - 0x0, 0x0, - - SHORTPAIR(hostlen), - SHORTPAIR(hostlen), - SHORTPAIR(hostoff), - 0x0, 0x0, - - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, - - LONGQUARTET(ntlm->flags)); - - DEBUGASSERT(size == 64); - DEBUGASSERT(size == (size_t)lmrespoff); - - /* We append the binary hashes */ - if(size < (NTLM_BUFSIZE - 0x18)) { - memcpy(&ntlmbuf[size], lmresp, 0x18); - size += 0x18; - } - - DEBUG_OUT({ - fprintf(stderr, "**** TYPE3 header lmresp="); - ntlm_print_hex(stderr, (char *)&ntlmbuf[lmrespoff], 0x18); - }); - -#ifdef USE_NTRESPONSES + } + else +#endif + { + +#ifdef USE_NTRESPONSES + unsigned char ntbuffer[0x18]; +#endif + unsigned char lmbuffer[0x18]; + +#ifdef USE_NTRESPONSES + result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer); + if(result) + return result; + + Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], ntresp); +#endif + + result = Curl_ntlm_core_mk_lm_hash(data, passwdp, lmbuffer); + if(result) + return result; + + Curl_ntlm_core_lm_resp(lmbuffer, &ntlm->nonce[0], lmresp); + + /* A safer but less compatible alternative is: + * Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], lmresp); + * See https://davenport.sourceforge.io/ntlm.html#ntlmVersion2 */ + } + + if(unicode) { + domlen = domlen * 2; + userlen = userlen * 2; + hostlen = hostlen * 2; + } + + lmrespoff = 64; /* size of the message header */ +#ifdef USE_NTRESPONSES + ntrespoff = lmrespoff + 0x18; + domoff = ntrespoff + ntresplen; +#else + domoff = lmrespoff + 0x18; +#endif + useroff = domoff + domlen; + hostoff = useroff + userlen; + + /* Create the big type-3 message binary blob */ + size = msnprintf((char *)ntlmbuf, NTLM_BUFSIZE, + NTLMSSP_SIGNATURE "%c" + "\x03%c%c%c" /* 32-bit type = 3 */ + + "%c%c" /* LanManager length */ + "%c%c" /* LanManager allocated space */ + "%c%c" /* LanManager offset */ + "%c%c" /* 2 zeroes */ + + "%c%c" /* NT-response length */ + "%c%c" /* NT-response allocated space */ + "%c%c" /* NT-response offset */ + "%c%c" /* 2 zeroes */ + + "%c%c" /* domain length */ + "%c%c" /* domain allocated space */ + "%c%c" /* domain name offset */ + "%c%c" /* 2 zeroes */ + + "%c%c" /* user length */ + "%c%c" /* user allocated space */ + "%c%c" /* user offset */ + "%c%c" /* 2 zeroes */ + + "%c%c" /* host length */ + "%c%c" /* host allocated space */ + "%c%c" /* host offset */ + "%c%c" /* 2 zeroes */ + + "%c%c" /* session key length (unknown purpose) */ + "%c%c" /* session key allocated space (unknown purpose) */ + "%c%c" /* session key offset (unknown purpose) */ + "%c%c" /* 2 zeroes */ + + "%c%c%c%c", /* flags */ + + /* domain string */ + /* user string */ + /* host string */ + /* LanManager response */ + /* NT response */ + + 0, /* zero termination */ + 0, 0, 0, /* type-3 long, the 24 upper bits */ + + SHORTPAIR(0x18), /* LanManager response length, twice */ + SHORTPAIR(0x18), + SHORTPAIR(lmrespoff), + 0x0, 0x0, + +#ifdef USE_NTRESPONSES + SHORTPAIR(ntresplen), /* NT-response length, twice */ + SHORTPAIR(ntresplen), + SHORTPAIR(ntrespoff), + 0x0, 0x0, +#else + 0x0, 0x0, + 0x0, 0x0, + 0x0, 0x0, + 0x0, 0x0, +#endif + SHORTPAIR(domlen), + SHORTPAIR(domlen), + SHORTPAIR(domoff), + 0x0, 0x0, + + SHORTPAIR(userlen), + SHORTPAIR(userlen), + SHORTPAIR(useroff), + 0x0, 0x0, + + SHORTPAIR(hostlen), + SHORTPAIR(hostlen), + SHORTPAIR(hostoff), + 0x0, 0x0, + + 0x0, 0x0, + 0x0, 0x0, + 0x0, 0x0, + 0x0, 0x0, + + LONGQUARTET(ntlm->flags)); + + DEBUGASSERT(size == 64); + DEBUGASSERT(size == (size_t)lmrespoff); + + /* We append the binary hashes */ + if(size < (NTLM_BUFSIZE - 0x18)) { + memcpy(&ntlmbuf[size], lmresp, 0x18); + size += 0x18; + } + + DEBUG_OUT({ + fprintf(stderr, "**** TYPE3 header lmresp="); + ntlm_print_hex(stderr, (char *)&ntlmbuf[lmrespoff], 0x18); + }); + +#ifdef USE_NTRESPONSES /* ntresplen + size should not be risking an integer overflow here */ if(ntresplen + size > sizeof(ntlmbuf)) { failf(data, "incoming NTLM message too big"); return CURLE_OUT_OF_MEMORY; - } + } DEBUGASSERT(size == (size_t)ntrespoff); memcpy(&ntlmbuf[size], ptr_ntresp, ntresplen); size += ntresplen; - - DEBUG_OUT({ - fprintf(stderr, "\n ntresp="); - ntlm_print_hex(stderr, (char *)&ntlmbuf[ntrespoff], ntresplen); - }); - - free(ntlmv2resp);/* Free the dynamic buffer allocated for NTLMv2 */ - -#endif - - DEBUG_OUT({ - fprintf(stderr, "\n flags=0x%02.2x%02.2x%02.2x%02.2x 0x%08.8x ", - LONGQUARTET(ntlm->flags), ntlm->flags); - ntlm_print_flags(stderr, ntlm->flags); - fprintf(stderr, "\n****\n"); - }); - - /* Make sure that the domain, user and host strings fit in the - buffer before we copy them there. */ - if(size + userlen + domlen + hostlen >= NTLM_BUFSIZE) { - failf(data, "user + domain + host name too big"); - return CURLE_OUT_OF_MEMORY; - } - - DEBUGASSERT(size == domoff); - if(unicode) - unicodecpy(&ntlmbuf[size], domain, domlen / 2); - else - memcpy(&ntlmbuf[size], domain, domlen); - - size += domlen; - - DEBUGASSERT(size == useroff); - if(unicode) - unicodecpy(&ntlmbuf[size], user, userlen / 2); - else - memcpy(&ntlmbuf[size], user, userlen); - - size += userlen; - - DEBUGASSERT(size == hostoff); - if(unicode) - unicodecpy(&ntlmbuf[size], host, hostlen / 2); - else - memcpy(&ntlmbuf[size], host, hostlen); - - size += hostlen; - - /* Convert domain, user, and host to ASCII but leave the rest as-is */ - result = Curl_convert_to_network(data, (char *)&ntlmbuf[domoff], - size - domoff); - if(result) - return CURLE_CONV_FAILED; - - /* Return with binary blob encoded into base64 */ - result = Curl_base64_encode(data, (char *)ntlmbuf, size, outptr, outlen); - + + DEBUG_OUT({ + fprintf(stderr, "\n ntresp="); + ntlm_print_hex(stderr, (char *)&ntlmbuf[ntrespoff], ntresplen); + }); + + free(ntlmv2resp);/* Free the dynamic buffer allocated for NTLMv2 */ + +#endif + + DEBUG_OUT({ + fprintf(stderr, "\n flags=0x%02.2x%02.2x%02.2x%02.2x 0x%08.8x ", + LONGQUARTET(ntlm->flags), ntlm->flags); + ntlm_print_flags(stderr, ntlm->flags); + fprintf(stderr, "\n****\n"); + }); + + /* Make sure that the domain, user and host strings fit in the + buffer before we copy them there. */ + if(size + userlen + domlen + hostlen >= NTLM_BUFSIZE) { + failf(data, "user + domain + host name too big"); + return CURLE_OUT_OF_MEMORY; + } + + DEBUGASSERT(size == domoff); + if(unicode) + unicodecpy(&ntlmbuf[size], domain, domlen / 2); + else + memcpy(&ntlmbuf[size], domain, domlen); + + size += domlen; + + DEBUGASSERT(size == useroff); + if(unicode) + unicodecpy(&ntlmbuf[size], user, userlen / 2); + else + memcpy(&ntlmbuf[size], user, userlen); + + size += userlen; + + DEBUGASSERT(size == hostoff); + if(unicode) + unicodecpy(&ntlmbuf[size], host, hostlen / 2); + else + memcpy(&ntlmbuf[size], host, hostlen); + + size += hostlen; + + /* Convert domain, user, and host to ASCII but leave the rest as-is */ + result = Curl_convert_to_network(data, (char *)&ntlmbuf[domoff], + size - domoff); + if(result) + return CURLE_CONV_FAILED; + + /* Return with binary blob encoded into base64 */ + result = Curl_base64_encode(data, (char *)ntlmbuf, size, outptr, outlen); + Curl_auth_cleanup_ntlm(ntlm); - - return result; -} - -/* + + return result; +} + +/* * Curl_auth_cleanup_ntlm() * * This is used to clean up the NTLM specific data. @@ -864,12 +864,12 @@ CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, * */ void Curl_auth_cleanup_ntlm(struct ntlmdata *ntlm) -{ - /* Free the target info */ - Curl_safefree(ntlm->target_info); - - /* Reset any variables */ - ntlm->target_info_len = 0; -} - -#endif /* USE_NTLM && !USE_WINDOWS_SSPI */ +{ + /* Free the target info */ + Curl_safefree(ntlm->target_info); + + /* Reset any variables */ + ntlm->target_info_len = 0; +} + +#endif /* USE_NTLM && !USE_WINDOWS_SSPI */ diff --git a/contrib/libs/curl/lib/vauth/ntlm.h b/contrib/libs/curl/lib/vauth/ntlm.h index 8ec23ad4f5..dc0b15abf0 100644 --- a/contrib/libs/curl/lib/vauth/ntlm.h +++ b/contrib/libs/curl/lib/vauth/ntlm.h @@ -1,143 +1,143 @@ -#ifndef HEADER_VAUTH_NTLM_H -#define HEADER_VAUTH_NTLM_H -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +#ifndef HEADER_VAUTH_NTLM_H +#define HEADER_VAUTH_NTLM_H +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#ifdef USE_NTLM - -/* NTLM buffer fixed size, large enough for long user + host + domain */ -#define NTLM_BUFSIZE 1024 - -/* Stuff only required for curl_ntlm_msgs.c */ -#ifdef BUILDING_CURL_NTLM_MSGS_C - -/* Flag bits definitions based on https://davenport.sourceforge.io/ntlm.html */ - -#define NTLMFLAG_NEGOTIATE_UNICODE (1<<0) -/* Indicates that Unicode strings are supported for use in security buffer - data. */ - -#define NTLMFLAG_NEGOTIATE_OEM (1<<1) -/* Indicates that OEM strings are supported for use in security buffer data. */ - -#define NTLMFLAG_REQUEST_TARGET (1<<2) -/* Requests that the server's authentication realm be included in the Type 2 - message. */ - -/* unknown (1<<3) */ -#define NTLMFLAG_NEGOTIATE_SIGN (1<<4) -/* Specifies that authenticated communication between the client and server - should carry a digital signature (message integrity). */ - -#define NTLMFLAG_NEGOTIATE_SEAL (1<<5) -/* Specifies that authenticated communication between the client and server - should be encrypted (message confidentiality). */ - -#define NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE (1<<6) -/* Indicates that datagram authentication is being used. */ - -#define NTLMFLAG_NEGOTIATE_LM_KEY (1<<7) -/* Indicates that the LAN Manager session key should be used for signing and - sealing authenticated communications. */ - -#define NTLMFLAG_NEGOTIATE_NETWARE (1<<8) -/* unknown purpose */ - -#define NTLMFLAG_NEGOTIATE_NTLM_KEY (1<<9) -/* Indicates that NTLM authentication is being used. */ - -/* unknown (1<<10) */ - -#define NTLMFLAG_NEGOTIATE_ANONYMOUS (1<<11) -/* Sent by the client in the Type 3 message to indicate that an anonymous - context has been established. This also affects the response fields. */ - -#define NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED (1<<12) -/* Sent by the client in the Type 1 message to indicate that a desired - authentication realm is included in the message. */ - -#define NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED (1<<13) -/* Sent by the client in the Type 1 message to indicate that the client - workstation's name is included in the message. */ - -#define NTLMFLAG_NEGOTIATE_LOCAL_CALL (1<<14) -/* Sent by the server to indicate that the server and client are on the same - machine. Implies that the client may use a pre-established local security - context rather than responding to the challenge. */ - -#define NTLMFLAG_NEGOTIATE_ALWAYS_SIGN (1<<15) -/* Indicates that authenticated communication between the client and server - should be signed with a "dummy" signature. */ - -#define NTLMFLAG_TARGET_TYPE_DOMAIN (1<<16) -/* Sent by the server in the Type 2 message to indicate that the target - authentication realm is a domain. */ - -#define NTLMFLAG_TARGET_TYPE_SERVER (1<<17) -/* Sent by the server in the Type 2 message to indicate that the target - authentication realm is a server. */ - -#define NTLMFLAG_TARGET_TYPE_SHARE (1<<18) -/* Sent by the server in the Type 2 message to indicate that the target - authentication realm is a share. Presumably, this is for share-level - authentication. Usage is unclear. */ - -#define NTLMFLAG_NEGOTIATE_NTLM2_KEY (1<<19) -/* Indicates that the NTLM2 signing and sealing scheme should be used for - protecting authenticated communications. */ - -#define NTLMFLAG_REQUEST_INIT_RESPONSE (1<<20) -/* unknown purpose */ - -#define NTLMFLAG_REQUEST_ACCEPT_RESPONSE (1<<21) -/* unknown purpose */ - -#define NTLMFLAG_REQUEST_NONNT_SESSION_KEY (1<<22) -/* unknown purpose */ - -#define NTLMFLAG_NEGOTIATE_TARGET_INFO (1<<23) -/* Sent by the server in the Type 2 message to indicate that it is including a - Target Information block in the message. */ - -/* unknown (1<24) */ -/* unknown (1<25) */ -/* unknown (1<26) */ -/* unknown (1<27) */ -/* unknown (1<28) */ - -#define NTLMFLAG_NEGOTIATE_128 (1<<29) -/* Indicates that 128-bit encryption is supported. */ - -#define NTLMFLAG_NEGOTIATE_KEY_EXCHANGE (1<<30) -/* Indicates that the client will provide an encrypted master key in - the "Session Key" field of the Type 3 message. */ - -#define NTLMFLAG_NEGOTIATE_56 (1<<31) -/* Indicates that 56-bit encryption is supported. */ - -#endif /* BUILDING_CURL_NTLM_MSGS_C */ - -#endif /* USE_NTLM */ - -#endif /* HEADER_VAUTH_NTLM_H */ + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include "curl_setup.h" + +#ifdef USE_NTLM + +/* NTLM buffer fixed size, large enough for long user + host + domain */ +#define NTLM_BUFSIZE 1024 + +/* Stuff only required for curl_ntlm_msgs.c */ +#ifdef BUILDING_CURL_NTLM_MSGS_C + +/* Flag bits definitions based on https://davenport.sourceforge.io/ntlm.html */ + +#define NTLMFLAG_NEGOTIATE_UNICODE (1<<0) +/* Indicates that Unicode strings are supported for use in security buffer + data. */ + +#define NTLMFLAG_NEGOTIATE_OEM (1<<1) +/* Indicates that OEM strings are supported for use in security buffer data. */ + +#define NTLMFLAG_REQUEST_TARGET (1<<2) +/* Requests that the server's authentication realm be included in the Type 2 + message. */ + +/* unknown (1<<3) */ +#define NTLMFLAG_NEGOTIATE_SIGN (1<<4) +/* Specifies that authenticated communication between the client and server + should carry a digital signature (message integrity). */ + +#define NTLMFLAG_NEGOTIATE_SEAL (1<<5) +/* Specifies that authenticated communication between the client and server + should be encrypted (message confidentiality). */ + +#define NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE (1<<6) +/* Indicates that datagram authentication is being used. */ + +#define NTLMFLAG_NEGOTIATE_LM_KEY (1<<7) +/* Indicates that the LAN Manager session key should be used for signing and + sealing authenticated communications. */ + +#define NTLMFLAG_NEGOTIATE_NETWARE (1<<8) +/* unknown purpose */ + +#define NTLMFLAG_NEGOTIATE_NTLM_KEY (1<<9) +/* Indicates that NTLM authentication is being used. */ + +/* unknown (1<<10) */ + +#define NTLMFLAG_NEGOTIATE_ANONYMOUS (1<<11) +/* Sent by the client in the Type 3 message to indicate that an anonymous + context has been established. This also affects the response fields. */ + +#define NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED (1<<12) +/* Sent by the client in the Type 1 message to indicate that a desired + authentication realm is included in the message. */ + +#define NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED (1<<13) +/* Sent by the client in the Type 1 message to indicate that the client + workstation's name is included in the message. */ + +#define NTLMFLAG_NEGOTIATE_LOCAL_CALL (1<<14) +/* Sent by the server to indicate that the server and client are on the same + machine. Implies that the client may use a pre-established local security + context rather than responding to the challenge. */ + +#define NTLMFLAG_NEGOTIATE_ALWAYS_SIGN (1<<15) +/* Indicates that authenticated communication between the client and server + should be signed with a "dummy" signature. */ + +#define NTLMFLAG_TARGET_TYPE_DOMAIN (1<<16) +/* Sent by the server in the Type 2 message to indicate that the target + authentication realm is a domain. */ + +#define NTLMFLAG_TARGET_TYPE_SERVER (1<<17) +/* Sent by the server in the Type 2 message to indicate that the target + authentication realm is a server. */ + +#define NTLMFLAG_TARGET_TYPE_SHARE (1<<18) +/* Sent by the server in the Type 2 message to indicate that the target + authentication realm is a share. Presumably, this is for share-level + authentication. Usage is unclear. */ + +#define NTLMFLAG_NEGOTIATE_NTLM2_KEY (1<<19) +/* Indicates that the NTLM2 signing and sealing scheme should be used for + protecting authenticated communications. */ + +#define NTLMFLAG_REQUEST_INIT_RESPONSE (1<<20) +/* unknown purpose */ + +#define NTLMFLAG_REQUEST_ACCEPT_RESPONSE (1<<21) +/* unknown purpose */ + +#define NTLMFLAG_REQUEST_NONNT_SESSION_KEY (1<<22) +/* unknown purpose */ + +#define NTLMFLAG_NEGOTIATE_TARGET_INFO (1<<23) +/* Sent by the server in the Type 2 message to indicate that it is including a + Target Information block in the message. */ + +/* unknown (1<24) */ +/* unknown (1<25) */ +/* unknown (1<26) */ +/* unknown (1<27) */ +/* unknown (1<28) */ + +#define NTLMFLAG_NEGOTIATE_128 (1<<29) +/* Indicates that 128-bit encryption is supported. */ + +#define NTLMFLAG_NEGOTIATE_KEY_EXCHANGE (1<<30) +/* Indicates that the client will provide an encrypted master key in + the "Session Key" field of the Type 3 message. */ + +#define NTLMFLAG_NEGOTIATE_56 (1<<31) +/* Indicates that 56-bit encryption is supported. */ + +#endif /* BUILDING_CURL_NTLM_MSGS_C */ + +#endif /* USE_NTLM */ + +#endif /* HEADER_VAUTH_NTLM_H */ diff --git a/contrib/libs/curl/lib/vauth/ntlm_sspi.c b/contrib/libs/curl/lib/vauth/ntlm_sspi.c index 28bc3efdaa..bb120dd061 100644 --- a/contrib/libs/curl/lib/vauth/ntlm_sspi.c +++ b/contrib/libs/curl/lib/vauth/ntlm_sspi.c @@ -1,282 +1,282 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if defined(USE_WINDOWS_SSPI) && defined(USE_NTLM) - -#include <curl/curl.h> - -#include "vauth/vauth.h" -#include "urldata.h" -#include "curl_base64.h" -#include "curl_ntlm_core.h" -#include "warnless.h" -#include "curl_multibyte.h" -#include "sendf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_is_ntlm_supported() - * - * This is used to evaluate if NTLM is supported. - * - * Parameters: None - * - * Returns TRUE if NTLM is supported by Windows SSPI. - */ -bool Curl_auth_is_ntlm_supported(void) -{ - PSecPkgInfo SecurityPackage; - SECURITY_STATUS status; - - /* Query the security package for NTLM */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_NTLM), - &SecurityPackage); - + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(USE_WINDOWS_SSPI) && defined(USE_NTLM) + +#include <curl/curl.h> + +#include "vauth/vauth.h" +#include "urldata.h" +#include "curl_base64.h" +#include "curl_ntlm_core.h" +#include "warnless.h" +#include "curl_multibyte.h" +#include "sendf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_is_ntlm_supported() + * + * This is used to evaluate if NTLM is supported. + * + * Parameters: None + * + * Returns TRUE if NTLM is supported by Windows SSPI. + */ +bool Curl_auth_is_ntlm_supported(void) +{ + PSecPkgInfo SecurityPackage; + SECURITY_STATUS status; + + /* Query the security package for NTLM */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_NTLM), + &SecurityPackage); + /* Release the package buffer as it is not required anymore */ if(status == SEC_E_OK) { s_pSecFn->FreeContextBuffer(SecurityPackage); } - return (status == SEC_E_OK ? TRUE : FALSE); -} - -/* - * Curl_auth_create_ntlm_type1_message() - * - * This is used to generate an already encoded NTLM type-1 message ready for - * sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * host [in] - The host name. - * ntlm [in/out] - The NTLM data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const char *service, - const char *host, - struct ntlmdata *ntlm, - char **outptr, size_t *outlen) -{ - PSecPkgInfo SecurityPackage; - SecBuffer type_1_buf; - SecBufferDesc type_1_desc; - SECURITY_STATUS status; - unsigned long attrs; - TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ - - /* Clean up any former leftovers and initialise to defaults */ + return (status == SEC_E_OK ? TRUE : FALSE); +} + +/* + * Curl_auth_create_ntlm_type1_message() + * + * This is used to generate an already encoded NTLM type-1 message ready for + * sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * host [in] - The host name. + * ntlm [in/out] - The NTLM data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const char *service, + const char *host, + struct ntlmdata *ntlm, + char **outptr, size_t *outlen) +{ + PSecPkgInfo SecurityPackage; + SecBuffer type_1_buf; + SecBufferDesc type_1_desc; + SECURITY_STATUS status; + unsigned long attrs; + TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ + + /* Clean up any former leftovers and initialise to defaults */ Curl_auth_cleanup_ntlm(ntlm); - - /* Query the security package for NTLM */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_NTLM), - &SecurityPackage); + + /* Query the security package for NTLM */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_NTLM), + &SecurityPackage); if(status != SEC_E_OK) { failf(data, "SSPI: couldn't get auth info\n"); return CURLE_AUTH_ERROR; } - - ntlm->token_max = SecurityPackage->cbMaxToken; - - /* Release the package buffer as it is not required anymore */ - s_pSecFn->FreeContextBuffer(SecurityPackage); - - /* Allocate our output buffer */ - ntlm->output_token = malloc(ntlm->token_max); - if(!ntlm->output_token) - return CURLE_OUT_OF_MEMORY; - - if(userp && *userp) { - CURLcode result; - - /* Populate our identity structure */ - result = Curl_create_sspi_identity(userp, passwdp, &ntlm->identity); - if(result) - return result; - - /* Allow proper cleanup of the identity structure */ - ntlm->p_identity = &ntlm->identity; - } - else - /* Use the current Windows user */ - ntlm->p_identity = NULL; - - /* Allocate our credentials handle */ - ntlm->credentials = calloc(1, sizeof(CredHandle)); - if(!ntlm->credentials) - return CURLE_OUT_OF_MEMORY; - - /* Acquire our credentials handle */ - status = s_pSecFn->AcquireCredentialsHandle(NULL, - (TCHAR *) TEXT(SP_NAME_NTLM), - SECPKG_CRED_OUTBOUND, NULL, - ntlm->p_identity, NULL, NULL, - ntlm->credentials, &expiry); - if(status != SEC_E_OK) - return CURLE_LOGIN_DENIED; - - /* Allocate our new context handle */ - ntlm->context = calloc(1, sizeof(CtxtHandle)); - if(!ntlm->context) - return CURLE_OUT_OF_MEMORY; - - ntlm->spn = Curl_auth_build_spn(service, host, NULL); - if(!ntlm->spn) - return CURLE_OUT_OF_MEMORY; - - /* Setup the type-1 "output" security buffer */ - type_1_desc.ulVersion = SECBUFFER_VERSION; - type_1_desc.cBuffers = 1; - type_1_desc.pBuffers = &type_1_buf; - type_1_buf.BufferType = SECBUFFER_TOKEN; - type_1_buf.pvBuffer = ntlm->output_token; - type_1_buf.cbBuffer = curlx_uztoul(ntlm->token_max); - - /* Generate our type-1 message */ - status = s_pSecFn->InitializeSecurityContext(ntlm->credentials, NULL, - ntlm->spn, - 0, 0, SECURITY_NETWORK_DREP, - NULL, 0, - ntlm->context, &type_1_desc, - &attrs, &expiry); - if(status == SEC_I_COMPLETE_NEEDED || - status == SEC_I_COMPLETE_AND_CONTINUE) - s_pSecFn->CompleteAuthToken(ntlm->context, &type_1_desc); + + ntlm->token_max = SecurityPackage->cbMaxToken; + + /* Release the package buffer as it is not required anymore */ + s_pSecFn->FreeContextBuffer(SecurityPackage); + + /* Allocate our output buffer */ + ntlm->output_token = malloc(ntlm->token_max); + if(!ntlm->output_token) + return CURLE_OUT_OF_MEMORY; + + if(userp && *userp) { + CURLcode result; + + /* Populate our identity structure */ + result = Curl_create_sspi_identity(userp, passwdp, &ntlm->identity); + if(result) + return result; + + /* Allow proper cleanup of the identity structure */ + ntlm->p_identity = &ntlm->identity; + } + else + /* Use the current Windows user */ + ntlm->p_identity = NULL; + + /* Allocate our credentials handle */ + ntlm->credentials = calloc(1, sizeof(CredHandle)); + if(!ntlm->credentials) + return CURLE_OUT_OF_MEMORY; + + /* Acquire our credentials handle */ + status = s_pSecFn->AcquireCredentialsHandle(NULL, + (TCHAR *) TEXT(SP_NAME_NTLM), + SECPKG_CRED_OUTBOUND, NULL, + ntlm->p_identity, NULL, NULL, + ntlm->credentials, &expiry); + if(status != SEC_E_OK) + return CURLE_LOGIN_DENIED; + + /* Allocate our new context handle */ + ntlm->context = calloc(1, sizeof(CtxtHandle)); + if(!ntlm->context) + return CURLE_OUT_OF_MEMORY; + + ntlm->spn = Curl_auth_build_spn(service, host, NULL); + if(!ntlm->spn) + return CURLE_OUT_OF_MEMORY; + + /* Setup the type-1 "output" security buffer */ + type_1_desc.ulVersion = SECBUFFER_VERSION; + type_1_desc.cBuffers = 1; + type_1_desc.pBuffers = &type_1_buf; + type_1_buf.BufferType = SECBUFFER_TOKEN; + type_1_buf.pvBuffer = ntlm->output_token; + type_1_buf.cbBuffer = curlx_uztoul(ntlm->token_max); + + /* Generate our type-1 message */ + status = s_pSecFn->InitializeSecurityContext(ntlm->credentials, NULL, + ntlm->spn, + 0, 0, SECURITY_NETWORK_DREP, + NULL, 0, + ntlm->context, &type_1_desc, + &attrs, &expiry); + if(status == SEC_I_COMPLETE_NEEDED || + status == SEC_I_COMPLETE_AND_CONTINUE) + s_pSecFn->CompleteAuthToken(ntlm->context, &type_1_desc); else if(status == SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; - else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) + else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED) return CURLE_AUTH_ERROR; - - /* Base64 encode the response */ - return Curl_base64_encode(data, (char *) ntlm->output_token, - type_1_buf.cbBuffer, outptr, outlen); -} - -/* - * Curl_auth_decode_ntlm_type2_message() - * - * This is used to decode an already encoded NTLM type-2 message. - * - * Parameters: - * - * data [in] - The session handle. - * type2msg [in] - The base64 encoded type-2 message. - * ntlm [in/out] - The NTLM data struct being used and modified. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data, - const char *type2msg, - struct ntlmdata *ntlm) -{ - CURLcode result = CURLE_OK; - unsigned char *type2 = NULL; - size_t type2_len = 0; - -#if defined(CURL_DISABLE_VERBOSE_STRINGS) - (void) data; -#endif - - /* Decode the base-64 encoded type-2 message */ - if(strlen(type2msg) && *type2msg != '=') { - result = Curl_base64_decode(type2msg, &type2, &type2_len); - if(result) - return result; - } - - /* Ensure we have a valid type-2 message */ - if(!type2) { - infof(data, "NTLM handshake failure (empty type-2 message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Simply store the challenge for use later */ - ntlm->input_token = type2; - ntlm->input_token_len = type2_len; - - return result; -} - -/* -* Curl_auth_create_ntlm_type3_message() - * Curl_auth_create_ntlm_type3_message() - * - * This is used to generate an already encoded NTLM type-3 message ready for - * sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * ntlm [in/out] - The NTLM data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - struct ntlmdata *ntlm, - char **outptr, size_t *outlen) -{ - CURLcode result = CURLE_OK; + + /* Base64 encode the response */ + return Curl_base64_encode(data, (char *) ntlm->output_token, + type_1_buf.cbBuffer, outptr, outlen); +} + +/* + * Curl_auth_decode_ntlm_type2_message() + * + * This is used to decode an already encoded NTLM type-2 message. + * + * Parameters: + * + * data [in] - The session handle. + * type2msg [in] - The base64 encoded type-2 message. + * ntlm [in/out] - The NTLM data struct being used and modified. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data, + const char *type2msg, + struct ntlmdata *ntlm) +{ + CURLcode result = CURLE_OK; + unsigned char *type2 = NULL; + size_t type2_len = 0; + +#if defined(CURL_DISABLE_VERBOSE_STRINGS) + (void) data; +#endif + + /* Decode the base-64 encoded type-2 message */ + if(strlen(type2msg) && *type2msg != '=') { + result = Curl_base64_decode(type2msg, &type2, &type2_len); + if(result) + return result; + } + + /* Ensure we have a valid type-2 message */ + if(!type2) { + infof(data, "NTLM handshake failure (empty type-2 message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Simply store the challenge for use later */ + ntlm->input_token = type2; + ntlm->input_token_len = type2_len; + + return result; +} + +/* +* Curl_auth_create_ntlm_type3_message() + * Curl_auth_create_ntlm_type3_message() + * + * This is used to generate an already encoded NTLM type-3 message ready for + * sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * ntlm [in/out] - The NTLM data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + struct ntlmdata *ntlm, + char **outptr, size_t *outlen) +{ + CURLcode result = CURLE_OK; SecBuffer type_2_bufs[2]; - SecBuffer type_3_buf; - SecBufferDesc type_2_desc; - SecBufferDesc type_3_desc; - SECURITY_STATUS status; - unsigned long attrs; - TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ - - (void) passwdp; - (void) userp; - - /* Setup the type-2 "input" security buffer */ + SecBuffer type_3_buf; + SecBufferDesc type_2_desc; + SecBufferDesc type_3_desc; + SECURITY_STATUS status; + unsigned long attrs; + TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ + + (void) passwdp; + (void) userp; + + /* Setup the type-2 "input" security buffer */ type_2_desc.ulVersion = SECBUFFER_VERSION; type_2_desc.cBuffers = 1; type_2_desc.pBuffers = &type_2_bufs[0]; type_2_bufs[0].BufferType = SECBUFFER_TOKEN; type_2_bufs[0].pvBuffer = ntlm->input_token; type_2_bufs[0].cbBuffer = curlx_uztoul(ntlm->input_token_len); - + #ifdef SECPKG_ATTR_ENDPOINT_BINDINGS /* ssl context comes from schannel. * When extended protection is used in IIS server, @@ -304,80 +304,80 @@ CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, } #endif - /* Setup the type-3 "output" security buffer */ - type_3_desc.ulVersion = SECBUFFER_VERSION; - type_3_desc.cBuffers = 1; - type_3_desc.pBuffers = &type_3_buf; - type_3_buf.BufferType = SECBUFFER_TOKEN; - type_3_buf.pvBuffer = ntlm->output_token; - type_3_buf.cbBuffer = curlx_uztoul(ntlm->token_max); - - /* Generate our type-3 message */ - status = s_pSecFn->InitializeSecurityContext(ntlm->credentials, - ntlm->context, - ntlm->spn, - 0, 0, SECURITY_NETWORK_DREP, - &type_2_desc, - 0, ntlm->context, - &type_3_desc, - &attrs, &expiry); - if(status != SEC_E_OK) { - infof(data, "NTLM handshake failure (type-3 message): Status=%x\n", - status); - + /* Setup the type-3 "output" security buffer */ + type_3_desc.ulVersion = SECBUFFER_VERSION; + type_3_desc.cBuffers = 1; + type_3_desc.pBuffers = &type_3_buf; + type_3_buf.BufferType = SECBUFFER_TOKEN; + type_3_buf.pvBuffer = ntlm->output_token; + type_3_buf.cbBuffer = curlx_uztoul(ntlm->token_max); + + /* Generate our type-3 message */ + status = s_pSecFn->InitializeSecurityContext(ntlm->credentials, + ntlm->context, + ntlm->spn, + 0, 0, SECURITY_NETWORK_DREP, + &type_2_desc, + 0, ntlm->context, + &type_3_desc, + &attrs, &expiry); + if(status != SEC_E_OK) { + infof(data, "NTLM handshake failure (type-3 message): Status=%x\n", + status); + if(status == SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - - /* Base64 encode the response */ - result = Curl_base64_encode(data, (char *) ntlm->output_token, - type_3_buf.cbBuffer, outptr, outlen); - + } + + /* Base64 encode the response */ + result = Curl_base64_encode(data, (char *) ntlm->output_token, + type_3_buf.cbBuffer, outptr, outlen); + Curl_auth_cleanup_ntlm(ntlm); - - return result; -} - -/* + + return result; +} + +/* * Curl_auth_cleanup_ntlm() - * - * This is used to clean up the NTLM specific data. - * - * Parameters: - * - * ntlm [in/out] - The NTLM data struct being cleaned up. - * - */ + * + * This is used to clean up the NTLM specific data. + * + * Parameters: + * + * ntlm [in/out] - The NTLM data struct being cleaned up. + * + */ void Curl_auth_cleanup_ntlm(struct ntlmdata *ntlm) -{ - /* Free our security context */ - if(ntlm->context) { - s_pSecFn->DeleteSecurityContext(ntlm->context); - free(ntlm->context); - ntlm->context = NULL; - } - - /* Free our credentials handle */ - if(ntlm->credentials) { - s_pSecFn->FreeCredentialsHandle(ntlm->credentials); - free(ntlm->credentials); - ntlm->credentials = NULL; - } - - /* Free our identity */ - Curl_sspi_free_identity(ntlm->p_identity); - ntlm->p_identity = NULL; - - /* Free the input and output tokens */ - Curl_safefree(ntlm->input_token); - Curl_safefree(ntlm->output_token); - - /* Reset any variables */ - ntlm->token_max = 0; - - Curl_safefree(ntlm->spn); -} - -#endif /* USE_WINDOWS_SSPI && USE_NTLM */ +{ + /* Free our security context */ + if(ntlm->context) { + s_pSecFn->DeleteSecurityContext(ntlm->context); + free(ntlm->context); + ntlm->context = NULL; + } + + /* Free our credentials handle */ + if(ntlm->credentials) { + s_pSecFn->FreeCredentialsHandle(ntlm->credentials); + free(ntlm->credentials); + ntlm->credentials = NULL; + } + + /* Free our identity */ + Curl_sspi_free_identity(ntlm->p_identity); + ntlm->p_identity = NULL; + + /* Free the input and output tokens */ + Curl_safefree(ntlm->input_token); + Curl_safefree(ntlm->output_token); + + /* Reset any variables */ + ntlm->token_max = 0; + + Curl_safefree(ntlm->spn); +} + +#endif /* USE_WINDOWS_SSPI && USE_NTLM */ diff --git a/contrib/libs/curl/lib/vauth/oauth2.c b/contrib/libs/curl/lib/vauth/oauth2.c index ca5842a7c0..2409b72975 100644 --- a/contrib/libs/curl/lib/vauth/oauth2.c +++ b/contrib/libs/curl/lib/vauth/oauth2.c @@ -1,90 +1,90 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC6749 OAuth 2.0 Authorization Framework - * - ***************************************************************************/ - -#include "curl_setup.h" - + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC6749 OAuth 2.0 Authorization Framework + * + ***************************************************************************/ + +#include "curl_setup.h" + #if !defined(CURL_DISABLE_IMAP) || !defined(CURL_DISABLE_SMTP) || \ !defined(CURL_DISABLE_POP3) -#include <curl/curl.h> -#include "urldata.h" - -#include "vauth/vauth.h" -#include "curl_base64.h" -#include "warnless.h" -#include "curl_printf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_create_oauth_bearer_message() - * - * This is used to generate an already encoded OAuth 2.0 message ready for - * sending to the recipient. - * - * Parameters: - * - * data[in] - The session handle. - * user[in] - The user name. +#include <curl/curl.h> +#include "urldata.h" + +#include "vauth/vauth.h" +#include "curl_base64.h" +#include "warnless.h" +#include "curl_printf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_create_oauth_bearer_message() + * + * This is used to generate an already encoded OAuth 2.0 message ready for + * sending to the recipient. + * + * Parameters: + * + * data[in] - The session handle. + * user[in] - The user name. * host[in] - The host name. * port[in] - The port(when not Port 80). - * bearer[in] - The bearer token. - * outptr[in / out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen[out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_oauth_bearer_message(struct Curl_easy *data, - const char *user, - const char *host, - const long port, - const char *bearer, - char **outptr, size_t *outlen) -{ - CURLcode result = CURLE_OK; - char *oauth = NULL; - - /* Generate the message */ + * bearer[in] - The bearer token. + * outptr[in / out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen[out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_oauth_bearer_message(struct Curl_easy *data, + const char *user, + const char *host, + const long port, + const char *bearer, + char **outptr, size_t *outlen) +{ + CURLcode result = CURLE_OK; + char *oauth = NULL; + + /* Generate the message */ if(port == 0 || port == 80) oauth = aprintf("n,a=%s,\1host=%s\1auth=Bearer %s\1\1", user, host, - bearer); - else + bearer); + else oauth = aprintf("n,a=%s,\1host=%s\1port=%ld\1auth=Bearer %s\1\1", user, - host, port, bearer); - if(!oauth) - return CURLE_OUT_OF_MEMORY; - - /* Base64 encode the reply */ - result = Curl_base64_encode(data, oauth, strlen(oauth), outptr, outlen); - - free(oauth); - - return result; -} + host, port, bearer); + if(!oauth) + return CURLE_OUT_OF_MEMORY; + + /* Base64 encode the reply */ + result = Curl_base64_encode(data, oauth, strlen(oauth), outptr, outlen); + + free(oauth); + + return result; +} /* * Curl_auth_create_xoauth_bearer_message() diff --git a/contrib/libs/curl/lib/vauth/spnego_gssapi.c b/contrib/libs/curl/lib/vauth/spnego_gssapi.c index 120925ff33..c324676ade 100644 --- a/contrib/libs/curl/lib/vauth/spnego_gssapi.c +++ b/contrib/libs/curl/lib/vauth/spnego_gssapi.c @@ -1,282 +1,282 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC4178 Simple and Protected GSS-API Negotiation Mechanism - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if defined(HAVE_GSSAPI) && defined(USE_SPNEGO) - -#include <curl/curl.h> - -#include "vauth/vauth.h" -#include "urldata.h" -#include "curl_base64.h" -#include "curl_gssapi.h" -#include "warnless.h" -#include "curl_multibyte.h" -#include "sendf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_is_spnego_supported() - * - * This is used to evaluate if SPNEGO (Negotiate) is supported. - * - * Parameters: None - * - * Returns TRUE if Negotiate supported by the GSS-API library. - */ -bool Curl_auth_is_spnego_supported(void) -{ - return TRUE; -} - -/* - * Curl_auth_decode_spnego_message() - * - * This is used to decode an already encoded SPNEGO (Negotiate) challenge - * message. - * - * Parameters: - * - * data [in] - The session handle. - * userp [in] - The user name in the format User or Domain\User. - * passwdp [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * host [in] - The host name. - * chlg64 [in] - The optional base64 encoded challenge message. - * nego [in/out] - The Negotiate data struct being used and modified. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, - const char *user, - const char *password, - const char *service, - const char *host, - const char *chlg64, - struct negotiatedata *nego) -{ - CURLcode result = CURLE_OK; - size_t chlglen = 0; - unsigned char *chlg = NULL; - OM_uint32 major_status; - OM_uint32 minor_status; - OM_uint32 unused_status; - gss_buffer_desc spn_token = GSS_C_EMPTY_BUFFER; - gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER; - gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER; - - (void) user; - (void) password; - - if(nego->context && nego->status == GSS_S_COMPLETE) { - /* We finished successfully our part of authentication, but server - * rejected it (since we're again here). Exit with an error since we - * can't invent anything better */ + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC4178 Simple and Protected GSS-API Negotiation Mechanism + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(HAVE_GSSAPI) && defined(USE_SPNEGO) + +#include <curl/curl.h> + +#include "vauth/vauth.h" +#include "urldata.h" +#include "curl_base64.h" +#include "curl_gssapi.h" +#include "warnless.h" +#include "curl_multibyte.h" +#include "sendf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_is_spnego_supported() + * + * This is used to evaluate if SPNEGO (Negotiate) is supported. + * + * Parameters: None + * + * Returns TRUE if Negotiate supported by the GSS-API library. + */ +bool Curl_auth_is_spnego_supported(void) +{ + return TRUE; +} + +/* + * Curl_auth_decode_spnego_message() + * + * This is used to decode an already encoded SPNEGO (Negotiate) challenge + * message. + * + * Parameters: + * + * data [in] - The session handle. + * userp [in] - The user name in the format User or Domain\User. + * passwdp [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * host [in] - The host name. + * chlg64 [in] - The optional base64 encoded challenge message. + * nego [in/out] - The Negotiate data struct being used and modified. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, + const char *user, + const char *password, + const char *service, + const char *host, + const char *chlg64, + struct negotiatedata *nego) +{ + CURLcode result = CURLE_OK; + size_t chlglen = 0; + unsigned char *chlg = NULL; + OM_uint32 major_status; + OM_uint32 minor_status; + OM_uint32 unused_status; + gss_buffer_desc spn_token = GSS_C_EMPTY_BUFFER; + gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER; + gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER; + + (void) user; + (void) password; + + if(nego->context && nego->status == GSS_S_COMPLETE) { + /* We finished successfully our part of authentication, but server + * rejected it (since we're again here). Exit with an error since we + * can't invent anything better */ Curl_auth_cleanup_spnego(nego); - return CURLE_LOGIN_DENIED; - } - - if(!nego->spn) { - /* Generate our SPN */ - char *spn = Curl_auth_build_spn(service, NULL, host); - if(!spn) - return CURLE_OUT_OF_MEMORY; - - /* Populate the SPN structure */ - spn_token.value = spn; - spn_token.length = strlen(spn); - - /* Import the SPN */ - major_status = gss_import_name(&minor_status, &spn_token, - GSS_C_NT_HOSTBASED_SERVICE, - &nego->spn); - if(GSS_ERROR(major_status)) { - Curl_gss_log_error(data, "gss_import_name() failed: ", - major_status, minor_status); - - free(spn); - + return CURLE_LOGIN_DENIED; + } + + if(!nego->spn) { + /* Generate our SPN */ + char *spn = Curl_auth_build_spn(service, NULL, host); + if(!spn) + return CURLE_OUT_OF_MEMORY; + + /* Populate the SPN structure */ + spn_token.value = spn; + spn_token.length = strlen(spn); + + /* Import the SPN */ + major_status = gss_import_name(&minor_status, &spn_token, + GSS_C_NT_HOSTBASED_SERVICE, + &nego->spn); + if(GSS_ERROR(major_status)) { + Curl_gss_log_error(data, "gss_import_name() failed: ", + major_status, minor_status); + + free(spn); + return CURLE_AUTH_ERROR; - } - - free(spn); - } - - if(chlg64 && *chlg64) { - /* Decode the base-64 encoded challenge message */ - if(*chlg64 != '=') { - result = Curl_base64_decode(chlg64, &chlg, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!chlg) { - infof(data, "SPNEGO handshake failure (empty challenge message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Setup the challenge "input" security buffer */ - input_token.value = chlg; - input_token.length = chlglen; - } - - /* Generate our challenge-response message */ - major_status = Curl_gss_init_sec_context(data, - &minor_status, - &nego->context, - nego->spn, - &Curl_spnego_mech_oid, - GSS_C_NO_CHANNEL_BINDINGS, - &input_token, - &output_token, - TRUE, - NULL); - - /* Free the decoded challenge as it is not required anymore */ - Curl_safefree(input_token.value); - - nego->status = major_status; - if(GSS_ERROR(major_status)) { - if(output_token.value) - gss_release_buffer(&unused_status, &output_token); - - Curl_gss_log_error(data, "gss_init_sec_context() failed: ", - major_status, minor_status); - + } + + free(spn); + } + + if(chlg64 && *chlg64) { + /* Decode the base-64 encoded challenge message */ + if(*chlg64 != '=') { + result = Curl_base64_decode(chlg64, &chlg, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!chlg) { + infof(data, "SPNEGO handshake failure (empty challenge message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Setup the challenge "input" security buffer */ + input_token.value = chlg; + input_token.length = chlglen; + } + + /* Generate our challenge-response message */ + major_status = Curl_gss_init_sec_context(data, + &minor_status, + &nego->context, + nego->spn, + &Curl_spnego_mech_oid, + GSS_C_NO_CHANNEL_BINDINGS, + &input_token, + &output_token, + TRUE, + NULL); + + /* Free the decoded challenge as it is not required anymore */ + Curl_safefree(input_token.value); + + nego->status = major_status; + if(GSS_ERROR(major_status)) { + if(output_token.value) + gss_release_buffer(&unused_status, &output_token); + + Curl_gss_log_error(data, "gss_init_sec_context() failed: ", + major_status, minor_status); + return CURLE_AUTH_ERROR; - } - - if(!output_token.value || !output_token.length) { - if(output_token.value) - gss_release_buffer(&unused_status, &output_token); - + } + + if(!output_token.value || !output_token.length) { + if(output_token.value) + gss_release_buffer(&unused_status, &output_token); + return CURLE_AUTH_ERROR; - } - - /* Free previous token */ - if(nego->output_token.length && nego->output_token.value) - gss_release_buffer(&unused_status, &nego->output_token); - - nego->output_token = output_token; - - return CURLE_OK; -} - -/* - * Curl_auth_create_spnego_message() - * - * This is used to generate an already encoded SPNEGO (Negotiate) response - * message ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * nego [in/out] - The Negotiate data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data, - struct negotiatedata *nego, - char **outptr, size_t *outlen) -{ - CURLcode result; - OM_uint32 minor_status; - - /* Base64 encode the already generated response */ - result = Curl_base64_encode(data, - nego->output_token.value, - nego->output_token.length, - outptr, outlen); - - if(result) { - gss_release_buffer(&minor_status, &nego->output_token); - nego->output_token.value = NULL; - nego->output_token.length = 0; - - return result; - } - - if(!*outptr || !*outlen) { - gss_release_buffer(&minor_status, &nego->output_token); - nego->output_token.value = NULL; - nego->output_token.length = 0; - - return CURLE_REMOTE_ACCESS_DENIED; - } - - return CURLE_OK; -} - -/* + } + + /* Free previous token */ + if(nego->output_token.length && nego->output_token.value) + gss_release_buffer(&unused_status, &nego->output_token); + + nego->output_token = output_token; + + return CURLE_OK; +} + +/* + * Curl_auth_create_spnego_message() + * + * This is used to generate an already encoded SPNEGO (Negotiate) response + * message ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * nego [in/out] - The Negotiate data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data, + struct negotiatedata *nego, + char **outptr, size_t *outlen) +{ + CURLcode result; + OM_uint32 minor_status; + + /* Base64 encode the already generated response */ + result = Curl_base64_encode(data, + nego->output_token.value, + nego->output_token.length, + outptr, outlen); + + if(result) { + gss_release_buffer(&minor_status, &nego->output_token); + nego->output_token.value = NULL; + nego->output_token.length = 0; + + return result; + } + + if(!*outptr || !*outlen) { + gss_release_buffer(&minor_status, &nego->output_token); + nego->output_token.value = NULL; + nego->output_token.length = 0; + + return CURLE_REMOTE_ACCESS_DENIED; + } + + return CURLE_OK; +} + +/* * Curl_auth_cleanup_spnego() - * - * This is used to clean up the SPNEGO (Negotiate) specific data. - * - * Parameters: - * - * nego [in/out] - The Negotiate data struct being cleaned up. - * - */ + * + * This is used to clean up the SPNEGO (Negotiate) specific data. + * + * Parameters: + * + * nego [in/out] - The Negotiate data struct being cleaned up. + * + */ void Curl_auth_cleanup_spnego(struct negotiatedata *nego) -{ - OM_uint32 minor_status; - - /* Free our security context */ - if(nego->context != GSS_C_NO_CONTEXT) { - gss_delete_sec_context(&minor_status, &nego->context, GSS_C_NO_BUFFER); - nego->context = GSS_C_NO_CONTEXT; - } - - /* Free the output token */ - if(nego->output_token.value) { - gss_release_buffer(&minor_status, &nego->output_token); - nego->output_token.value = NULL; - nego->output_token.length = 0; - - } - - /* Free the SPN */ - if(nego->spn != GSS_C_NO_NAME) { - gss_release_name(&minor_status, &nego->spn); - nego->spn = GSS_C_NO_NAME; - } - - /* Reset any variables */ - nego->status = 0; +{ + OM_uint32 minor_status; + + /* Free our security context */ + if(nego->context != GSS_C_NO_CONTEXT) { + gss_delete_sec_context(&minor_status, &nego->context, GSS_C_NO_BUFFER); + nego->context = GSS_C_NO_CONTEXT; + } + + /* Free the output token */ + if(nego->output_token.value) { + gss_release_buffer(&minor_status, &nego->output_token); + nego->output_token.value = NULL; + nego->output_token.length = 0; + + } + + /* Free the SPN */ + if(nego->spn != GSS_C_NO_NAME) { + gss_release_name(&minor_status, &nego->spn); + nego->spn = GSS_C_NO_NAME; + } + + /* Reset any variables */ + nego->status = 0; nego->noauthpersist = FALSE; nego->havenoauthpersist = FALSE; nego->havenegdata = FALSE; nego->havemultiplerequests = FALSE; -} - -#endif /* HAVE_GSSAPI && USE_SPNEGO */ +} + +#endif /* HAVE_GSSAPI && USE_SPNEGO */ diff --git a/contrib/libs/curl/lib/vauth/spnego_sspi.c b/contrib/libs/curl/lib/vauth/spnego_sspi.c index e7482a43e2..51905f0436 100644 --- a/contrib/libs/curl/lib/vauth/spnego_sspi.c +++ b/contrib/libs/curl/lib/vauth/spnego_sspi.c @@ -1,202 +1,202 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * RFC4178 Simple and Protected GSS-API Negotiation Mechanism - * - ***************************************************************************/ - -#include "curl_setup.h" - -#if defined(USE_WINDOWS_SSPI) && defined(USE_SPNEGO) - -#include <curl/curl.h> - -#include "vauth/vauth.h" -#include "urldata.h" -#include "curl_base64.h" -#include "warnless.h" -#include "curl_multibyte.h" -#include "sendf.h" -#include "strerror.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_is_spnego_supported() - * - * This is used to evaluate if SPNEGO (Negotiate) is supported. - * - * Parameters: None - * - * Returns TRUE if Negotiate is supported by Windows SSPI. - */ -bool Curl_auth_is_spnego_supported(void) -{ - PSecPkgInfo SecurityPackage; - SECURITY_STATUS status; - - /* Query the security package for Negotiate */ - status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) - TEXT(SP_NAME_NEGOTIATE), - &SecurityPackage); - + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * RFC4178 Simple and Protected GSS-API Negotiation Mechanism + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(USE_WINDOWS_SSPI) && defined(USE_SPNEGO) + +#include <curl/curl.h> + +#include "vauth/vauth.h" +#include "urldata.h" +#include "curl_base64.h" +#include "warnless.h" +#include "curl_multibyte.h" +#include "sendf.h" +#include "strerror.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_is_spnego_supported() + * + * This is used to evaluate if SPNEGO (Negotiate) is supported. + * + * Parameters: None + * + * Returns TRUE if Negotiate is supported by Windows SSPI. + */ +bool Curl_auth_is_spnego_supported(void) +{ + PSecPkgInfo SecurityPackage; + SECURITY_STATUS status; + + /* Query the security package for Negotiate */ + status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) + TEXT(SP_NAME_NEGOTIATE), + &SecurityPackage); + /* Release the package buffer as it is not required anymore */ if(status == SEC_E_OK) { s_pSecFn->FreeContextBuffer(SecurityPackage); } - return (status == SEC_E_OK ? TRUE : FALSE); -} - -/* - * Curl_auth_decode_spnego_message() - * - * This is used to decode an already encoded SPNEGO (Negotiate) challenge - * message. - * - * Parameters: - * - * data [in] - The session handle. - * user [in] - The user name in the format User or Domain\User. - * password [in] - The user's password. - * service [in] - The service type such as http, smtp, pop or imap. - * host [in] - The host name. - * chlg64 [in] - The optional base64 encoded challenge message. - * nego [in/out] - The Negotiate data struct being used and modified. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, - const char *user, - const char *password, - const char *service, - const char *host, - const char *chlg64, - struct negotiatedata *nego) -{ - CURLcode result = CURLE_OK; - size_t chlglen = 0; - unsigned char *chlg = NULL; - PSecPkgInfo SecurityPackage; + return (status == SEC_E_OK ? TRUE : FALSE); +} + +/* + * Curl_auth_decode_spnego_message() + * + * This is used to decode an already encoded SPNEGO (Negotiate) challenge + * message. + * + * Parameters: + * + * data [in] - The session handle. + * user [in] - The user name in the format User or Domain\User. + * password [in] - The user's password. + * service [in] - The service type such as http, smtp, pop or imap. + * host [in] - The host name. + * chlg64 [in] - The optional base64 encoded challenge message. + * nego [in/out] - The Negotiate data struct being used and modified. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, + const char *user, + const char *password, + const char *service, + const char *host, + const char *chlg64, + struct negotiatedata *nego) +{ + CURLcode result = CURLE_OK; + size_t chlglen = 0; + unsigned char *chlg = NULL; + PSecPkgInfo SecurityPackage; SecBuffer chlg_buf[2]; - SecBuffer resp_buf; - SecBufferDesc chlg_desc; - SecBufferDesc resp_desc; - unsigned long attrs; - TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ - -#if defined(CURL_DISABLE_VERBOSE_STRINGS) - (void) data; -#endif - - if(nego->context && nego->status == SEC_E_OK) { - /* We finished successfully our part of authentication, but server - * rejected it (since we're again here). Exit with an error since we - * can't invent anything better */ + SecBuffer resp_buf; + SecBufferDesc chlg_desc; + SecBufferDesc resp_desc; + unsigned long attrs; + TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */ + +#if defined(CURL_DISABLE_VERBOSE_STRINGS) + (void) data; +#endif + + if(nego->context && nego->status == SEC_E_OK) { + /* We finished successfully our part of authentication, but server + * rejected it (since we're again here). Exit with an error since we + * can't invent anything better */ Curl_auth_cleanup_spnego(nego); - return CURLE_LOGIN_DENIED; - } - - if(!nego->spn) { - /* Generate our SPN */ - nego->spn = Curl_auth_build_spn(service, host, NULL); - if(!nego->spn) - return CURLE_OUT_OF_MEMORY; - } - - if(!nego->output_token) { - /* Query the security package for Negotiate */ - nego->status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) - TEXT(SP_NAME_NEGOTIATE), - &SecurityPackage); + return CURLE_LOGIN_DENIED; + } + + if(!nego->spn) { + /* Generate our SPN */ + nego->spn = Curl_auth_build_spn(service, host, NULL); + if(!nego->spn) + return CURLE_OUT_OF_MEMORY; + } + + if(!nego->output_token) { + /* Query the security package for Negotiate */ + nego->status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) + TEXT(SP_NAME_NEGOTIATE), + &SecurityPackage); if(nego->status != SEC_E_OK) { failf(data, "SSPI: couldn't get auth info\n"); return CURLE_AUTH_ERROR; } - - nego->token_max = SecurityPackage->cbMaxToken; - - /* Release the package buffer as it is not required anymore */ - s_pSecFn->FreeContextBuffer(SecurityPackage); - - /* Allocate our output buffer */ - nego->output_token = malloc(nego->token_max); - if(!nego->output_token) - return CURLE_OUT_OF_MEMORY; - } - - if(!nego->credentials) { - /* Do we have credentials to use or are we using single sign-on? */ - if(user && *user) { - /* Populate our identity structure */ - result = Curl_create_sspi_identity(user, password, &nego->identity); - if(result) - return result; - - /* Allow proper cleanup of the identity structure */ - nego->p_identity = &nego->identity; - } - else - /* Use the current Windows user */ - nego->p_identity = NULL; - - /* Allocate our credentials handle */ - nego->credentials = calloc(1, sizeof(CredHandle)); - if(!nego->credentials) - return CURLE_OUT_OF_MEMORY; - - /* Acquire our credentials handle */ - nego->status = - s_pSecFn->AcquireCredentialsHandle(NULL, - (TCHAR *)TEXT(SP_NAME_NEGOTIATE), - SECPKG_CRED_OUTBOUND, NULL, - nego->p_identity, NULL, NULL, - nego->credentials, &expiry); - if(nego->status != SEC_E_OK) + + nego->token_max = SecurityPackage->cbMaxToken; + + /* Release the package buffer as it is not required anymore */ + s_pSecFn->FreeContextBuffer(SecurityPackage); + + /* Allocate our output buffer */ + nego->output_token = malloc(nego->token_max); + if(!nego->output_token) + return CURLE_OUT_OF_MEMORY; + } + + if(!nego->credentials) { + /* Do we have credentials to use or are we using single sign-on? */ + if(user && *user) { + /* Populate our identity structure */ + result = Curl_create_sspi_identity(user, password, &nego->identity); + if(result) + return result; + + /* Allow proper cleanup of the identity structure */ + nego->p_identity = &nego->identity; + } + else + /* Use the current Windows user */ + nego->p_identity = NULL; + + /* Allocate our credentials handle */ + nego->credentials = calloc(1, sizeof(CredHandle)); + if(!nego->credentials) + return CURLE_OUT_OF_MEMORY; + + /* Acquire our credentials handle */ + nego->status = + s_pSecFn->AcquireCredentialsHandle(NULL, + (TCHAR *)TEXT(SP_NAME_NEGOTIATE), + SECPKG_CRED_OUTBOUND, NULL, + nego->p_identity, NULL, NULL, + nego->credentials, &expiry); + if(nego->status != SEC_E_OK) return CURLE_AUTH_ERROR; - - /* Allocate our new context handle */ - nego->context = calloc(1, sizeof(CtxtHandle)); - if(!nego->context) - return CURLE_OUT_OF_MEMORY; - } - - if(chlg64 && *chlg64) { - /* Decode the base-64 encoded challenge message */ - if(*chlg64 != '=') { - result = Curl_base64_decode(chlg64, &chlg, &chlglen); - if(result) - return result; - } - - /* Ensure we have a valid challenge message */ - if(!chlg) { - infof(data, "SPNEGO handshake failure (empty challenge message)\n"); - - return CURLE_BAD_CONTENT_ENCODING; - } - - /* Setup the challenge "input" security buffer */ + + /* Allocate our new context handle */ + nego->context = calloc(1, sizeof(CtxtHandle)); + if(!nego->context) + return CURLE_OUT_OF_MEMORY; + } + + if(chlg64 && *chlg64) { + /* Decode the base-64 encoded challenge message */ + if(*chlg64 != '=') { + result = Curl_base64_decode(chlg64, &chlg, &chlglen); + if(result) + return result; + } + + /* Ensure we have a valid challenge message */ + if(!chlg) { + infof(data, "SPNEGO handshake failure (empty challenge message)\n"); + + return CURLE_BAD_CONTENT_ENCODING; + } + + /* Setup the challenge "input" security buffer */ chlg_desc.ulVersion = SECBUFFER_VERSION; chlg_desc.cBuffers = 1; chlg_desc.pBuffers = &chlg_buf[0]; @@ -230,46 +230,46 @@ CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, } } #endif - } - - /* Setup the response "output" security buffer */ - resp_desc.ulVersion = SECBUFFER_VERSION; - resp_desc.cBuffers = 1; - resp_desc.pBuffers = &resp_buf; - resp_buf.BufferType = SECBUFFER_TOKEN; - resp_buf.pvBuffer = nego->output_token; - resp_buf.cbBuffer = curlx_uztoul(nego->token_max); - - /* Generate our challenge-response message */ - nego->status = s_pSecFn->InitializeSecurityContext(nego->credentials, - chlg ? nego->context : - NULL, - nego->spn, - ISC_REQ_CONFIDENTIALITY, - 0, SECURITY_NATIVE_DREP, - chlg ? &chlg_desc : NULL, - 0, nego->context, - &resp_desc, &attrs, - &expiry); - - /* Free the decoded challenge as it is not required anymore */ - free(chlg); - - if(GSS_ERROR(nego->status)) { + } + + /* Setup the response "output" security buffer */ + resp_desc.ulVersion = SECBUFFER_VERSION; + resp_desc.cBuffers = 1; + resp_desc.pBuffers = &resp_buf; + resp_buf.BufferType = SECBUFFER_TOKEN; + resp_buf.pvBuffer = nego->output_token; + resp_buf.cbBuffer = curlx_uztoul(nego->token_max); + + /* Generate our challenge-response message */ + nego->status = s_pSecFn->InitializeSecurityContext(nego->credentials, + chlg ? nego->context : + NULL, + nego->spn, + ISC_REQ_CONFIDENTIALITY, + 0, SECURITY_NATIVE_DREP, + chlg ? &chlg_desc : NULL, + 0, nego->context, + &resp_desc, &attrs, + &expiry); + + /* Free the decoded challenge as it is not required anymore */ + free(chlg); + + if(GSS_ERROR(nego->status)) { char buffer[STRERROR_LEN]; - failf(data, "InitializeSecurityContext failed: %s", + failf(data, "InitializeSecurityContext failed: %s", Curl_sspi_strerror(nego->status, buffer, sizeof(buffer))); if(nego->status == (DWORD)SEC_E_INSUFFICIENT_MEMORY) return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - - if(nego->status == SEC_I_COMPLETE_NEEDED || - nego->status == SEC_I_COMPLETE_AND_CONTINUE) { - nego->status = s_pSecFn->CompleteAuthToken(nego->context, &resp_desc); - if(GSS_ERROR(nego->status)) { + } + + if(nego->status == SEC_I_COMPLETE_NEEDED || + nego->status == SEC_I_COMPLETE_AND_CONTINUE) { + nego->status = s_pSecFn->CompleteAuthToken(nego->context, &resp_desc); + if(GSS_ERROR(nego->status)) { char buffer[STRERROR_LEN]; failf(data, "CompleteAuthToken failed: %s", Curl_sspi_strerror(nego->status, buffer, sizeof(buffer))); @@ -278,94 +278,94 @@ CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, return CURLE_OUT_OF_MEMORY; return CURLE_AUTH_ERROR; - } - } - - nego->output_token_length = resp_buf.cbBuffer; - - return result; -} - -/* - * Curl_auth_create_spnego_message() - * - * This is used to generate an already encoded SPNEGO (Negotiate) response - * message ready for sending to the recipient. - * - * Parameters: - * - * data [in] - The session handle. - * nego [in/out] - The Negotiate data struct being used and modified. - * outptr [in/out] - The address where a pointer to newly allocated memory - * holding the result will be stored upon completion. - * outlen [out] - The length of the output message. - * - * Returns CURLE_OK on success. - */ -CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data, - struct negotiatedata *nego, - char **outptr, size_t *outlen) -{ - CURLcode result; - - /* Base64 encode the already generated response */ - result = Curl_base64_encode(data, - (const char *) nego->output_token, - nego->output_token_length, - outptr, outlen); - - if(result) - return result; - - if(!*outptr || !*outlen) { - free(*outptr); - return CURLE_REMOTE_ACCESS_DENIED; - } - - return CURLE_OK; -} - -/* + } + } + + nego->output_token_length = resp_buf.cbBuffer; + + return result; +} + +/* + * Curl_auth_create_spnego_message() + * + * This is used to generate an already encoded SPNEGO (Negotiate) response + * message ready for sending to the recipient. + * + * Parameters: + * + * data [in] - The session handle. + * nego [in/out] - The Negotiate data struct being used and modified. + * outptr [in/out] - The address where a pointer to newly allocated memory + * holding the result will be stored upon completion. + * outlen [out] - The length of the output message. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data, + struct negotiatedata *nego, + char **outptr, size_t *outlen) +{ + CURLcode result; + + /* Base64 encode the already generated response */ + result = Curl_base64_encode(data, + (const char *) nego->output_token, + nego->output_token_length, + outptr, outlen); + + if(result) + return result; + + if(!*outptr || !*outlen) { + free(*outptr); + return CURLE_REMOTE_ACCESS_DENIED; + } + + return CURLE_OK; +} + +/* * Curl_auth_cleanup_spnego() - * - * This is used to clean up the SPNEGO (Negotiate) specific data. - * - * Parameters: - * - * nego [in/out] - The Negotiate data struct being cleaned up. - * - */ + * + * This is used to clean up the SPNEGO (Negotiate) specific data. + * + * Parameters: + * + * nego [in/out] - The Negotiate data struct being cleaned up. + * + */ void Curl_auth_cleanup_spnego(struct negotiatedata *nego) -{ - /* Free our security context */ - if(nego->context) { - s_pSecFn->DeleteSecurityContext(nego->context); - free(nego->context); - nego->context = NULL; - } - - /* Free our credentials handle */ - if(nego->credentials) { - s_pSecFn->FreeCredentialsHandle(nego->credentials); - free(nego->credentials); - nego->credentials = NULL; - } - - /* Free our identity */ - Curl_sspi_free_identity(nego->p_identity); - nego->p_identity = NULL; - - /* Free the SPN and output token */ - Curl_safefree(nego->spn); - Curl_safefree(nego->output_token); - - /* Reset any variables */ - nego->status = 0; - nego->token_max = 0; +{ + /* Free our security context */ + if(nego->context) { + s_pSecFn->DeleteSecurityContext(nego->context); + free(nego->context); + nego->context = NULL; + } + + /* Free our credentials handle */ + if(nego->credentials) { + s_pSecFn->FreeCredentialsHandle(nego->credentials); + free(nego->credentials); + nego->credentials = NULL; + } + + /* Free our identity */ + Curl_sspi_free_identity(nego->p_identity); + nego->p_identity = NULL; + + /* Free the SPN and output token */ + Curl_safefree(nego->spn); + Curl_safefree(nego->output_token); + + /* Reset any variables */ + nego->status = 0; + nego->token_max = 0; nego->noauthpersist = FALSE; nego->havenoauthpersist = FALSE; nego->havenegdata = FALSE; nego->havemultiplerequests = FALSE; -} - -#endif /* USE_WINDOWS_SSPI && USE_SPNEGO */ +} + +#endif /* USE_WINDOWS_SSPI && USE_SPNEGO */ diff --git a/contrib/libs/curl/lib/vauth/vauth.c b/contrib/libs/curl/lib/vauth/vauth.c index 129b8f8b57..c2fc24d60a 100644 --- a/contrib/libs/curl/lib/vauth/vauth.c +++ b/contrib/libs/curl/lib/vauth/vauth.c @@ -1,110 +1,110 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 2014 - 2020, Steve Holme, <steve_holme@hotmail.com>. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#include <curl/curl.h> - -#include "vauth.h" -#include "curl_multibyte.h" -#include "curl_printf.h" - -/* The last #include files should be: */ -#include "curl_memory.h" -#include "memdebug.h" - -/* - * Curl_auth_build_spn() - * - * This is used to build a SPN string in the following formats: - * - * service/host@realm (Not currently used) - * service/host (Not used by GSS-API) - * service@realm (Not used by Windows SSPI) - * - * Parameters: - * - * service [in] - The service type such as http, smtp, pop or imap. - * host [in] - The host name. - * realm [in] - The realm. - * - * Returns a pointer to the newly allocated SPN. - */ -#if !defined(USE_WINDOWS_SSPI) -char *Curl_auth_build_spn(const char *service, const char *host, - const char *realm) -{ - char *spn = NULL; - - /* Generate our SPN */ - if(host && realm) - spn = aprintf("%s/%s@%s", service, host, realm); - else if(host) - spn = aprintf("%s/%s", service, host); - else if(realm) - spn = aprintf("%s@%s", service, realm); - - /* Return our newly allocated SPN */ - return spn; -} -#else -TCHAR *Curl_auth_build_spn(const char *service, const char *host, - const char *realm) -{ - char *utf8_spn = NULL; - TCHAR *tchar_spn = NULL; - - (void) realm; - - /* Note: We could use DsMakeSPN() or DsClientMakeSpnForTargetServer() rather - than doing this ourselves but the first is only available in Windows XP - and Windows Server 2003 and the latter is only available in Windows 2000 - but not Windows95/98/ME or Windows NT4.0 unless the Active Directory - Client Extensions are installed. As such it is far simpler for us to - formulate the SPN instead. */ - - /* Generate our UTF8 based SPN */ - utf8_spn = aprintf("%s/%s", service, host); - if(!utf8_spn) { - return NULL; - } - - /* Allocate our TCHAR based SPN */ + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include "curl_setup.h" + +#include <curl/curl.h> + +#include "vauth.h" +#include "curl_multibyte.h" +#include "curl_printf.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +/* + * Curl_auth_build_spn() + * + * This is used to build a SPN string in the following formats: + * + * service/host@realm (Not currently used) + * service/host (Not used by GSS-API) + * service@realm (Not used by Windows SSPI) + * + * Parameters: + * + * service [in] - The service type such as http, smtp, pop or imap. + * host [in] - The host name. + * realm [in] - The realm. + * + * Returns a pointer to the newly allocated SPN. + */ +#if !defined(USE_WINDOWS_SSPI) +char *Curl_auth_build_spn(const char *service, const char *host, + const char *realm) +{ + char *spn = NULL; + + /* Generate our SPN */ + if(host && realm) + spn = aprintf("%s/%s@%s", service, host, realm); + else if(host) + spn = aprintf("%s/%s", service, host); + else if(realm) + spn = aprintf("%s@%s", service, realm); + + /* Return our newly allocated SPN */ + return spn; +} +#else +TCHAR *Curl_auth_build_spn(const char *service, const char *host, + const char *realm) +{ + char *utf8_spn = NULL; + TCHAR *tchar_spn = NULL; + + (void) realm; + + /* Note: We could use DsMakeSPN() or DsClientMakeSpnForTargetServer() rather + than doing this ourselves but the first is only available in Windows XP + and Windows Server 2003 and the latter is only available in Windows 2000 + but not Windows95/98/ME or Windows NT4.0 unless the Active Directory + Client Extensions are installed. As such it is far simpler for us to + formulate the SPN instead. */ + + /* Generate our UTF8 based SPN */ + utf8_spn = aprintf("%s/%s", service, host); + if(!utf8_spn) { + return NULL; + } + + /* Allocate our TCHAR based SPN */ tchar_spn = curlx_convert_UTF8_to_tchar(utf8_spn); - if(!tchar_spn) { - free(utf8_spn); - - return NULL; - } - - /* Release the UTF8 variant when operating with Unicode */ + if(!tchar_spn) { + free(utf8_spn); + + return NULL; + } + + /* Release the UTF8 variant when operating with Unicode */ curlx_unicodefree(utf8_spn); - - /* Return our newly allocated SPN */ - return tchar_spn; -} -#endif /* USE_WINDOWS_SSPI */ - -/* + + /* Return our newly allocated SPN */ + return tchar_spn; +} +#endif /* USE_WINDOWS_SSPI */ + +/* * Curl_auth_user_contains_domain() * * This is used to test if the specified user contains a Windows domain name as @@ -125,23 +125,23 @@ TCHAR *Curl_auth_build_spn(const char *service, const char *host, * * Returns TRUE on success; otherwise FALSE. */ -bool Curl_auth_user_contains_domain(const char *user) -{ - bool valid = FALSE; - - if(user && *user) { - /* Check we have a domain name or UPN present */ - char *p = strpbrk(user, "\\/@"); - - valid = (p != NULL && p > user && p < user + strlen(user) - 1 ? TRUE : - FALSE); - } -#if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI) - else - /* User and domain are obtained from the GSS-API credentials cache or the - currently logged in user from Windows */ - valid = TRUE; -#endif - - return valid; -} +bool Curl_auth_user_contains_domain(const char *user) +{ + bool valid = FALSE; + + if(user && *user) { + /* Check we have a domain name or UPN present */ + char *p = strpbrk(user, "\\/@"); + + valid = (p != NULL && p > user && p < user + strlen(user) - 1 ? TRUE : + FALSE); + } +#if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI) + else + /* User and domain are obtained from the GSS-API credentials cache or the + currently logged in user from Windows */ + valid = TRUE; +#endif + + return valid; +} diff --git a/contrib/libs/curl/lib/vauth/vauth.h b/contrib/libs/curl/lib/vauth/vauth.h index f25cfc329f..46ab6f0179 100644 --- a/contrib/libs/curl/lib/vauth/vauth.h +++ b/contrib/libs/curl/lib/vauth/vauth.h @@ -1,157 +1,157 @@ -#ifndef HEADER_CURL_VAUTH_H -#define HEADER_CURL_VAUTH_H -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * +#ifndef HEADER_CURL_VAUTH_H +#define HEADER_CURL_VAUTH_H +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * * Copyright (C) 2014 - 2020, Steve Holme, <steve_holme@hotmail.com>. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include <curl/curl.h> - -struct Curl_easy; - -#if !defined(CURL_DISABLE_CRYPTO_AUTH) -struct digestdata; -#endif - -#if defined(USE_NTLM) -struct ntlmdata; -#endif - -#if defined(USE_KERBEROS5) -struct kerberos5data; -#endif - -#if (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)) && defined(USE_SPNEGO) -struct negotiatedata; -#endif - -#if defined(USE_WINDOWS_SSPI) + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include <curl/curl.h> + +struct Curl_easy; + +#if !defined(CURL_DISABLE_CRYPTO_AUTH) +struct digestdata; +#endif + +#if defined(USE_NTLM) +struct ntlmdata; +#endif + +#if defined(USE_KERBEROS5) +struct kerberos5data; +#endif + +#if (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)) && defined(USE_SPNEGO) +struct negotiatedata; +#endif + +#if defined(USE_WINDOWS_SSPI) #define GSS_ERROR(status) ((status) & 0x80000000) -#endif - -/* This is used to build a SPN string */ -#if !defined(USE_WINDOWS_SSPI) -char *Curl_auth_build_spn(const char *service, const char *host, - const char *realm); -#else -TCHAR *Curl_auth_build_spn(const char *service, const char *host, - const char *realm); -#endif - -/* This is used to test if the user contains a Windows domain name */ -bool Curl_auth_user_contains_domain(const char *user); - -/* This is used to generate a base64 encoded PLAIN cleartext message */ -CURLcode Curl_auth_create_plain_message(struct Curl_easy *data, +#endif + +/* This is used to build a SPN string */ +#if !defined(USE_WINDOWS_SSPI) +char *Curl_auth_build_spn(const char *service, const char *host, + const char *realm); +#else +TCHAR *Curl_auth_build_spn(const char *service, const char *host, + const char *realm); +#endif + +/* This is used to test if the user contains a Windows domain name */ +bool Curl_auth_user_contains_domain(const char *user); + +/* This is used to generate a base64 encoded PLAIN cleartext message */ +CURLcode Curl_auth_create_plain_message(struct Curl_easy *data, const char *authzid, const char *authcid, const char *passwd, - char **outptr, size_t *outlen); - -/* This is used to generate a base64 encoded LOGIN cleartext message */ -CURLcode Curl_auth_create_login_message(struct Curl_easy *data, - const char *valuep, char **outptr, - size_t *outlen); - -/* This is used to generate a base64 encoded EXTERNAL cleartext message */ -CURLcode Curl_auth_create_external_message(struct Curl_easy *data, - const char *user, char **outptr, - size_t *outlen); - -#if !defined(CURL_DISABLE_CRYPTO_AUTH) -/* This is used to decode a CRAM-MD5 challenge message */ -CURLcode Curl_auth_decode_cram_md5_message(const char *chlg64, char **outptr, - size_t *outlen); - -/* This is used to generate a CRAM-MD5 response message */ -CURLcode Curl_auth_create_cram_md5_message(struct Curl_easy *data, - const char *chlg, - const char *userp, - const char *passwdp, - char **outptr, size_t *outlen); - -/* This is used to evaluate if DIGEST is supported */ -bool Curl_auth_is_digest_supported(void); - -/* This is used to generate a base64 encoded DIGEST-MD5 response message */ -CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data, - const char *chlg64, - const char *userp, - const char *passwdp, - const char *service, - char **outptr, size_t *outlen); - -/* This is used to decode a HTTP DIGEST challenge message */ -CURLcode Curl_auth_decode_digest_http_message(const char *chlg, - struct digestdata *digest); - -/* This is used to generate a HTTP DIGEST response message */ -CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const unsigned char *request, - const unsigned char *uri, - struct digestdata *digest, - char **outptr, size_t *outlen); - -/* This is used to clean up the digest specific data */ -void Curl_auth_digest_cleanup(struct digestdata *digest); -#endif /* !CURL_DISABLE_CRYPTO_AUTH */ - -#if defined(USE_NTLM) -/* This is used to evaluate if NTLM is supported */ -bool Curl_auth_is_ntlm_supported(void); - -/* This is used to generate a base64 encoded NTLM type-1 message */ -CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const char *service, - const char *host, - struct ntlmdata *ntlm, - char **outptr, - size_t *outlen); - -/* This is used to decode a base64 encoded NTLM type-2 message */ -CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data, - const char *type2msg, - struct ntlmdata *ntlm); - -/* This is used to generate a base64 encoded NTLM type-3 message */ -CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - struct ntlmdata *ntlm, - char **outptr, size_t *outlen); - -/* This is used to clean up the NTLM specific data */ + char **outptr, size_t *outlen); + +/* This is used to generate a base64 encoded LOGIN cleartext message */ +CURLcode Curl_auth_create_login_message(struct Curl_easy *data, + const char *valuep, char **outptr, + size_t *outlen); + +/* This is used to generate a base64 encoded EXTERNAL cleartext message */ +CURLcode Curl_auth_create_external_message(struct Curl_easy *data, + const char *user, char **outptr, + size_t *outlen); + +#if !defined(CURL_DISABLE_CRYPTO_AUTH) +/* This is used to decode a CRAM-MD5 challenge message */ +CURLcode Curl_auth_decode_cram_md5_message(const char *chlg64, char **outptr, + size_t *outlen); + +/* This is used to generate a CRAM-MD5 response message */ +CURLcode Curl_auth_create_cram_md5_message(struct Curl_easy *data, + const char *chlg, + const char *userp, + const char *passwdp, + char **outptr, size_t *outlen); + +/* This is used to evaluate if DIGEST is supported */ +bool Curl_auth_is_digest_supported(void); + +/* This is used to generate a base64 encoded DIGEST-MD5 response message */ +CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data, + const char *chlg64, + const char *userp, + const char *passwdp, + const char *service, + char **outptr, size_t *outlen); + +/* This is used to decode a HTTP DIGEST challenge message */ +CURLcode Curl_auth_decode_digest_http_message(const char *chlg, + struct digestdata *digest); + +/* This is used to generate a HTTP DIGEST response message */ +CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const unsigned char *request, + const unsigned char *uri, + struct digestdata *digest, + char **outptr, size_t *outlen); + +/* This is used to clean up the digest specific data */ +void Curl_auth_digest_cleanup(struct digestdata *digest); +#endif /* !CURL_DISABLE_CRYPTO_AUTH */ + +#if defined(USE_NTLM) +/* This is used to evaluate if NTLM is supported */ +bool Curl_auth_is_ntlm_supported(void); + +/* This is used to generate a base64 encoded NTLM type-1 message */ +CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const char *service, + const char *host, + struct ntlmdata *ntlm, + char **outptr, + size_t *outlen); + +/* This is used to decode a base64 encoded NTLM type-2 message */ +CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data, + const char *type2msg, + struct ntlmdata *ntlm); + +/* This is used to generate a base64 encoded NTLM type-3 message */ +CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + struct ntlmdata *ntlm, + char **outptr, size_t *outlen); + +/* This is used to clean up the NTLM specific data */ void Curl_auth_cleanup_ntlm(struct ntlmdata *ntlm); -#endif /* USE_NTLM */ - -/* This is used to generate a base64 encoded OAuth 2.0 message */ -CURLcode Curl_auth_create_oauth_bearer_message(struct Curl_easy *data, - const char *user, - const char *host, - const long port, - const char *bearer, - char **outptr, size_t *outlen); +#endif /* USE_NTLM */ + +/* This is used to generate a base64 encoded OAuth 2.0 message */ +CURLcode Curl_auth_create_oauth_bearer_message(struct Curl_easy *data, + const char *user, + const char *host, + const long port, + const char *bearer, + char **outptr, size_t *outlen); /* This is used to generate a base64 encoded XOAuth 2.0 message */ CURLcode Curl_auth_create_xoauth_bearer_message(struct Curl_easy *data, @@ -159,57 +159,57 @@ CURLcode Curl_auth_create_xoauth_bearer_message(struct Curl_easy *data, const char *bearer, char **outptr, size_t *outlen); -#if defined(USE_KERBEROS5) -/* This is used to evaluate if GSSAPI (Kerberos V5) is supported */ -bool Curl_auth_is_gssapi_supported(void); - -/* This is used to generate a base64 encoded GSSAPI (Kerberos V5) user token - message */ -CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data, - const char *userp, - const char *passwdp, - const char *service, - const char *host, - const bool mutual, - const char *chlg64, - struct kerberos5data *krb5, - char **outptr, size_t *outlen); - -/* This is used to generate a base64 encoded GSSAPI (Kerberos V5) security - token message */ -CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data, - const char *input, - struct kerberos5data *krb5, - char **outptr, - size_t *outlen); - -/* This is used to clean up the GSSAPI specific data */ +#if defined(USE_KERBEROS5) +/* This is used to evaluate if GSSAPI (Kerberos V5) is supported */ +bool Curl_auth_is_gssapi_supported(void); + +/* This is used to generate a base64 encoded GSSAPI (Kerberos V5) user token + message */ +CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data, + const char *userp, + const char *passwdp, + const char *service, + const char *host, + const bool mutual, + const char *chlg64, + struct kerberos5data *krb5, + char **outptr, size_t *outlen); + +/* This is used to generate a base64 encoded GSSAPI (Kerberos V5) security + token message */ +CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data, + const char *input, + struct kerberos5data *krb5, + char **outptr, + size_t *outlen); + +/* This is used to clean up the GSSAPI specific data */ void Curl_auth_cleanup_gssapi(struct kerberos5data *krb5); -#endif /* USE_KERBEROS5 */ - -#if defined(USE_SPNEGO) -/* This is used to evaluate if SPNEGO (Negotiate) is supported */ -bool Curl_auth_is_spnego_supported(void); - -/* This is used to decode a base64 encoded SPNEGO (Negotiate) challenge - message */ -CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, - const char *user, - const char *passwood, - const char *service, - const char *host, - const char *chlg64, - struct negotiatedata *nego); - -/* This is used to generate a base64 encoded SPNEGO (Negotiate) response - message */ -CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data, - struct negotiatedata *nego, - char **outptr, size_t *outlen); - -/* This is used to clean up the SPNEGO specifiec data */ +#endif /* USE_KERBEROS5 */ + +#if defined(USE_SPNEGO) +/* This is used to evaluate if SPNEGO (Negotiate) is supported */ +bool Curl_auth_is_spnego_supported(void); + +/* This is used to decode a base64 encoded SPNEGO (Negotiate) challenge + message */ +CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data, + const char *user, + const char *passwood, + const char *service, + const char *host, + const char *chlg64, + struct negotiatedata *nego); + +/* This is used to generate a base64 encoded SPNEGO (Negotiate) response + message */ +CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data, + struct negotiatedata *nego, + char **outptr, size_t *outlen); + +/* This is used to clean up the SPNEGO specifiec data */ void Curl_auth_cleanup_spnego(struct negotiatedata *nego); - -#endif /* USE_SPNEGO */ - -#endif /* HEADER_CURL_VAUTH_H */ + +#endif /* USE_SPNEGO */ + +#endif /* HEADER_CURL_VAUTH_H */ |