diff options
author | Nikita Slyusarev <nslus@yandex-team.com> | 2022-02-10 16:46:52 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:46:52 +0300 |
commit | cd77cecfc03a3eaf87816af28a33067c4f0cdb59 (patch) | |
tree | 1308e0bae862d52e0020d881fe758080437fe389 /contrib/libs/curl/lib/x509asn1.c | |
parent | cdae02d225fb5b3afbb28990e79a7ac6c9125327 (diff) | |
download | ydb-cd77cecfc03a3eaf87816af28a33067c4f0cdb59.tar.gz |
Restoring authorship annotation for Nikita Slyusarev <nslus@yandex-team.com>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/curl/lib/x509asn1.c')
-rw-r--r-- | contrib/libs/curl/lib/x509asn1.c | 1524 |
1 files changed, 762 insertions, 762 deletions
diff --git a/contrib/libs/curl/lib/x509asn1.c b/contrib/libs/curl/lib/x509asn1.c index d7cf9eb2af..cba3bec135 100644 --- a/contrib/libs/curl/lib/x509asn1.c +++ b/contrib/libs/curl/lib/x509asn1.c @@ -1,191 +1,191 @@ -/*************************************************************************** - * _ _ ____ _ - * 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" - + * + * 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_GSKIT) || defined(USE_NSS) || defined(USE_GNUTLS) || \ defined(USE_WOLFSSL) || defined(USE_SCHANNEL) - -#include <curl/curl.h> -#include "urldata.h" + +#include <curl/curl.h> +#include "urldata.h" #include "strcase.h" -#include "hostcheck.h" +#include "hostcheck.h" #include "vtls/vtls.h" -#include "sendf.h" -#include "inet_pton.h" -#include "curl_base64.h" -#include "x509asn1.h" - +#include "sendf.h" +#include "inet_pton.h" +#include "curl_base64.h" +#include "x509asn1.h" + /* The last 3 #include files should be in this order */ #include "curl_printf.h" -#include "curl_memory.h" -#include "memdebug.h" - -/* ASN.1 OIDs. */ -static const char cnOID[] = "2.5.4.3"; /* Common name. */ -static const char sanOID[] = "2.5.29.17"; /* Subject alternative name. */ - +#include "curl_memory.h" +#include "memdebug.h" + +/* ASN.1 OIDs. */ +static const char cnOID[] = "2.5.4.3"; /* Common name. */ +static const char sanOID[] = "2.5.29.17"; /* Subject alternative name. */ + static const struct Curl_OID OIDtable[] = { - { "1.2.840.10040.4.1", "dsa" }, - { "1.2.840.10040.4.3", "dsa-with-sha1" }, - { "1.2.840.10045.2.1", "ecPublicKey" }, - { "1.2.840.10045.3.0.1", "c2pnb163v1" }, - { "1.2.840.10045.4.1", "ecdsa-with-SHA1" }, - { "1.2.840.10046.2.1", "dhpublicnumber" }, - { "1.2.840.113549.1.1.1", "rsaEncryption" }, - { "1.2.840.113549.1.1.2", "md2WithRSAEncryption" }, - { "1.2.840.113549.1.1.4", "md5WithRSAEncryption" }, - { "1.2.840.113549.1.1.5", "sha1WithRSAEncryption" }, - { "1.2.840.113549.1.1.10", "RSASSA-PSS" }, - { "1.2.840.113549.1.1.14", "sha224WithRSAEncryption" }, - { "1.2.840.113549.1.1.11", "sha256WithRSAEncryption" }, - { "1.2.840.113549.1.1.12", "sha384WithRSAEncryption" }, - { "1.2.840.113549.1.1.13", "sha512WithRSAEncryption" }, - { "1.2.840.113549.2.2", "md2" }, - { "1.2.840.113549.2.5", "md5" }, - { "1.3.14.3.2.26", "sha1" }, - { cnOID, "CN" }, - { "2.5.4.4", "SN" }, - { "2.5.4.5", "serialNumber" }, - { "2.5.4.6", "C" }, - { "2.5.4.7", "L" }, - { "2.5.4.8", "ST" }, - { "2.5.4.9", "streetAddress" }, - { "2.5.4.10", "O" }, - { "2.5.4.11", "OU" }, - { "2.5.4.12", "title" }, - { "2.5.4.13", "description" }, - { "2.5.4.17", "postalCode" }, - { "2.5.4.41", "name" }, - { "2.5.4.42", "givenName" }, - { "2.5.4.43", "initials" }, - { "2.5.4.44", "generationQualifier" }, - { "2.5.4.45", "X500UniqueIdentifier" }, - { "2.5.4.46", "dnQualifier" }, - { "2.5.4.65", "pseudonym" }, - { "1.2.840.113549.1.9.1", "emailAddress" }, - { "2.5.4.72", "role" }, - { sanOID, "subjectAltName" }, - { "2.5.29.18", "issuerAltName" }, - { "2.5.29.19", "basicConstraints" }, - { "2.16.840.1.101.3.4.2.4", "sha224" }, - { "2.16.840.1.101.3.4.2.1", "sha256" }, - { "2.16.840.1.101.3.4.2.2", "sha384" }, - { "2.16.840.1.101.3.4.2.3", "sha512" }, - { (const char *) NULL, (const char *) NULL } -}; - -/* - * Lightweight ASN.1 parser. - * In particular, it does not check for syntactic/lexical errors. - * It is intended to support certificate information gathering for SSL backends - * that offer a mean to get certificates as a whole, but do not supply - * entry points to get particular certificate sub-fields. - * Please note there is no pretention here to rewrite a full SSL library. - */ - + { "1.2.840.10040.4.1", "dsa" }, + { "1.2.840.10040.4.3", "dsa-with-sha1" }, + { "1.2.840.10045.2.1", "ecPublicKey" }, + { "1.2.840.10045.3.0.1", "c2pnb163v1" }, + { "1.2.840.10045.4.1", "ecdsa-with-SHA1" }, + { "1.2.840.10046.2.1", "dhpublicnumber" }, + { "1.2.840.113549.1.1.1", "rsaEncryption" }, + { "1.2.840.113549.1.1.2", "md2WithRSAEncryption" }, + { "1.2.840.113549.1.1.4", "md5WithRSAEncryption" }, + { "1.2.840.113549.1.1.5", "sha1WithRSAEncryption" }, + { "1.2.840.113549.1.1.10", "RSASSA-PSS" }, + { "1.2.840.113549.1.1.14", "sha224WithRSAEncryption" }, + { "1.2.840.113549.1.1.11", "sha256WithRSAEncryption" }, + { "1.2.840.113549.1.1.12", "sha384WithRSAEncryption" }, + { "1.2.840.113549.1.1.13", "sha512WithRSAEncryption" }, + { "1.2.840.113549.2.2", "md2" }, + { "1.2.840.113549.2.5", "md5" }, + { "1.3.14.3.2.26", "sha1" }, + { cnOID, "CN" }, + { "2.5.4.4", "SN" }, + { "2.5.4.5", "serialNumber" }, + { "2.5.4.6", "C" }, + { "2.5.4.7", "L" }, + { "2.5.4.8", "ST" }, + { "2.5.4.9", "streetAddress" }, + { "2.5.4.10", "O" }, + { "2.5.4.11", "OU" }, + { "2.5.4.12", "title" }, + { "2.5.4.13", "description" }, + { "2.5.4.17", "postalCode" }, + { "2.5.4.41", "name" }, + { "2.5.4.42", "givenName" }, + { "2.5.4.43", "initials" }, + { "2.5.4.44", "generationQualifier" }, + { "2.5.4.45", "X500UniqueIdentifier" }, + { "2.5.4.46", "dnQualifier" }, + { "2.5.4.65", "pseudonym" }, + { "1.2.840.113549.1.9.1", "emailAddress" }, + { "2.5.4.72", "role" }, + { sanOID, "subjectAltName" }, + { "2.5.29.18", "issuerAltName" }, + { "2.5.29.19", "basicConstraints" }, + { "2.16.840.1.101.3.4.2.4", "sha224" }, + { "2.16.840.1.101.3.4.2.1", "sha256" }, + { "2.16.840.1.101.3.4.2.2", "sha384" }, + { "2.16.840.1.101.3.4.2.3", "sha512" }, + { (const char *) NULL, (const char *) NULL } +}; + +/* + * Lightweight ASN.1 parser. + * In particular, it does not check for syntactic/lexical errors. + * It is intended to support certificate information gathering for SSL backends + * that offer a mean to get certificates as a whole, but do not supply + * entry points to get particular certificate sub-fields. + * Please note there is no pretention here to rewrite a full SSL library. + */ + static const char *getASN1Element(struct Curl_asn1Element *elem, const char *beg, const char *end) WARN_UNUSED_RESULT; - + static const char *getASN1Element(struct Curl_asn1Element *elem, const char *beg, const char *end) -{ - unsigned char b; - unsigned long len; +{ + unsigned char b; + unsigned long len; struct Curl_asn1Element lelem; - - /* Get a single ASN.1 element into `elem', parse ASN.1 string at `beg' - ending at `end'. - Returns a pointer in source string after the parsed element, or NULL - if an error occurs. */ + + /* Get a single ASN.1 element into `elem', parse ASN.1 string at `beg' + ending at `end'. + Returns a pointer in source string after the parsed element, or NULL + if an error occurs. */ if(!beg || !end || beg >= end || !*beg || (size_t)(end - beg) > CURL_ASN1_MAX) return NULL; - - /* Process header byte. */ + + /* Process header byte. */ elem->header = beg; - b = (unsigned char) *beg++; - elem->constructed = (b & 0x20) != 0; - elem->class = (b >> 6) & 3; - b &= 0x1F; - if(b == 0x1F) + b = (unsigned char) *beg++; + elem->constructed = (b & 0x20) != 0; + elem->class = (b >> 6) & 3; + b &= 0x1F; + if(b == 0x1F) return NULL; /* Long tag values not supported here. */ - elem->tag = b; - - /* Process length. */ - if(beg >= end) + elem->tag = b; + + /* Process length. */ + if(beg >= end) return NULL; - b = (unsigned char) *beg++; - if(!(b & 0x80)) - len = b; - else if(!(b &= 0x7F)) { - /* Unspecified length. Since we have all the data, we can determine the - effective length by skipping element until an end element is found. */ - if(!elem->constructed) + b = (unsigned char) *beg++; + if(!(b & 0x80)) + len = b; + else if(!(b &= 0x7F)) { + /* Unspecified length. Since we have all the data, we can determine the + effective length by skipping element until an end element is found. */ + if(!elem->constructed) return NULL; - elem->beg = beg; - while(beg < end && *beg) { + elem->beg = beg; + while(beg < end && *beg) { beg = getASN1Element(&lelem, beg, end); - if(!beg) + if(!beg) return NULL; - } - if(beg >= end) + } + if(beg >= end) return NULL; - elem->end = beg; - return beg + 1; - } + elem->end = beg; + return beg + 1; + } else if((unsigned)b > (size_t)(end - beg)) return NULL; /* Does not fit in source. */ - else { - /* Get long length. */ - len = 0; - do { - if(len & 0xFF000000L) + else { + /* Get long length. */ + len = 0; + do { + if(len & 0xFF000000L) return NULL; /* Lengths > 32 bits are not supported. */ - len = (len << 8) | (unsigned char) *beg++; - } while(--b); - } + len = (len << 8) | (unsigned char) *beg++; + } while(--b); + } if(len > (size_t)(end - beg)) return NULL; /* Element data does not fit in source. */ - elem->beg = beg; - elem->end = beg + len; - return elem->end; -} - + elem->beg = beg; + elem->end = beg + len; + return elem->end; +} + /* * Search the null terminated OID or OID identifier in local table. * Return the table entry pointer or NULL if not found. */ static const struct Curl_OID *searchOID(const char *oid) -{ +{ const struct Curl_OID *op; - for(op = OIDtable; op->numoid; op++) + for(op = OIDtable; op->numoid; op++) if(!strcmp(op->numoid, oid) || strcasecompare(op->textoid, oid)) - return op; - + return op; + return NULL; -} - +} + /* * Convert an ASN.1 Boolean value into its string representation. Return the * dynamically allocated string, or NULL if source is not an ASN.1 Boolean @@ -193,66 +193,66 @@ static const struct Curl_OID *searchOID(const char *oid) */ static const char *bool2str(const char *beg, const char *end) -{ - if(end - beg != 1) +{ + if(end - beg != 1) return NULL; - return strdup(*beg? "TRUE": "FALSE"); -} - + return strdup(*beg? "TRUE": "FALSE"); +} + /* * Convert an ASN.1 octet string to a printable string. * Return the dynamically allocated string, or NULL if an error occurs. */ static const char *octet2str(const char *beg, const char *end) -{ - size_t n = end - beg; +{ + size_t n = end - beg; char *buf = NULL; - + if(n <= (SIZE_T_MAX - 1) / 3) { buf = malloc(3 * n + 1); if(buf) for(n = 0; beg < end; n += 3) msnprintf(buf + n, 4, "%02x:", *(const unsigned char *) beg++); } - return buf; -} - + return buf; +} + static const char *bit2str(const char *beg, const char *end) -{ - /* Convert an ASN.1 bit string to a printable string. - Return the dynamically allocated string, or NULL if an error occurs. */ - - if(++beg > end) +{ + /* Convert an ASN.1 bit string to a printable string. + Return the dynamically allocated string, or NULL if an error occurs. */ + + if(++beg > end) return NULL; - return octet2str(beg, end); -} - + return octet2str(beg, end); +} + /* * Convert an ASN.1 integer value into its string representation. * Return the dynamically allocated string, or NULL if source is not an * ASN.1 integer value. */ static const char *int2str(const char *beg, const char *end) -{ +{ unsigned long val = 0; - size_t n = end - beg; - - if(!n) + size_t n = end - beg; + + if(!n) return NULL; - - if(n > 4) - return octet2str(beg, end); - - /* Represent integers <= 32-bit as a single value. */ - if(*beg & 0x80) - val = ~val; - - do - val = (val << 8) | *(const unsigned char *) beg++; - while(beg < end); + + if(n > 4) + return octet2str(beg, end); + + /* Represent integers <= 32-bit as a single value. */ + if(*beg & 0x80) + val = ~val; + + do + val = (val << 8) | *(const unsigned char *) beg++; + while(beg < end); return curl_maprintf("%s%lx", val >= 10? "0x": "", val); -} - +} + /* * Perform a lazy conversion from an ASN.1 typed string to UTF8. Allocate the * destination buffer dynamically. The allocation size will normally be too @@ -260,127 +260,127 @@ static const char *int2str(const char *beg, const char *end) * Terminate the string with a nul byte and return the converted * string length. */ -static ssize_t +static ssize_t utf8asn1str(char **to, int type, const char *from, const char *end) -{ - size_t inlength = end - from; - int size = 1; - size_t outlength; +{ + size_t inlength = end - from; + int size = 1; + size_t outlength; char *buf; - + *to = NULL; switch(type) { - case CURL_ASN1_BMP_STRING: - size = 2; - break; - case CURL_ASN1_UNIVERSAL_STRING: - size = 4; - break; - case CURL_ASN1_NUMERIC_STRING: - case CURL_ASN1_PRINTABLE_STRING: - case CURL_ASN1_TELETEX_STRING: - case CURL_ASN1_IA5_STRING: - case CURL_ASN1_VISIBLE_STRING: - case CURL_ASN1_UTF8_STRING: - break; - default: - return -1; /* Conversion not supported. */ - } - - if(inlength % size) - return -1; /* Length inconsistent with character size. */ + case CURL_ASN1_BMP_STRING: + size = 2; + break; + case CURL_ASN1_UNIVERSAL_STRING: + size = 4; + break; + case CURL_ASN1_NUMERIC_STRING: + case CURL_ASN1_PRINTABLE_STRING: + case CURL_ASN1_TELETEX_STRING: + case CURL_ASN1_IA5_STRING: + case CURL_ASN1_VISIBLE_STRING: + case CURL_ASN1_UTF8_STRING: + break; + default: + return -1; /* Conversion not supported. */ + } + + if(inlength % size) + return -1; /* Length inconsistent with character size. */ if(inlength / size > (SIZE_T_MAX - 1) / 4) return -1; /* Too big. */ - buf = malloc(4 * (inlength / size) + 1); - if(!buf) - return -1; /* Not enough memory. */ - - if(type == CURL_ASN1_UTF8_STRING) { - /* Just copy. */ - outlength = inlength; - if(outlength) - memcpy(buf, from, outlength); - } - else { - for(outlength = 0; from < end;) { + buf = malloc(4 * (inlength / size) + 1); + if(!buf) + return -1; /* Not enough memory. */ + + if(type == CURL_ASN1_UTF8_STRING) { + /* Just copy. */ + outlength = inlength; + if(outlength) + memcpy(buf, from, outlength); + } + else { + for(outlength = 0; from < end;) { int charsize; unsigned int wc; - wc = 0; + wc = 0; switch(size) { - case 4: - wc = (wc << 8) | *(const unsigned char *) from++; - wc = (wc << 8) | *(const unsigned char *) from++; + case 4: + wc = (wc << 8) | *(const unsigned char *) from++; + wc = (wc << 8) | *(const unsigned char *) from++; /* FALLTHROUGH */ - case 2: - wc = (wc << 8) | *(const unsigned char *) from++; + case 2: + wc = (wc << 8) | *(const unsigned char *) from++; /* FALLTHROUGH */ - default: /* case 1: */ - wc = (wc << 8) | *(const unsigned char *) from++; - } + default: /* case 1: */ + wc = (wc << 8) | *(const unsigned char *) from++; + } charsize = 1; - if(wc >= 0x00000080) { - if(wc >= 0x00000800) { - if(wc >= 0x00010000) { - if(wc >= 0x00200000) { - free(buf); - return -1; /* Invalid char. size for target encoding. */ - } - buf[outlength + 3] = (char) (0x80 | (wc & 0x3F)); - wc = (wc >> 6) | 0x00010000; + if(wc >= 0x00000080) { + if(wc >= 0x00000800) { + if(wc >= 0x00010000) { + if(wc >= 0x00200000) { + free(buf); + return -1; /* Invalid char. size for target encoding. */ + } + buf[outlength + 3] = (char) (0x80 | (wc & 0x3F)); + wc = (wc >> 6) | 0x00010000; charsize++; - } - buf[outlength + 2] = (char) (0x80 | (wc & 0x3F)); - wc = (wc >> 6) | 0x00000800; + } + buf[outlength + 2] = (char) (0x80 | (wc & 0x3F)); + wc = (wc >> 6) | 0x00000800; charsize++; - } - buf[outlength + 1] = (char) (0x80 | (wc & 0x3F)); - wc = (wc >> 6) | 0x000000C0; + } + buf[outlength + 1] = (char) (0x80 | (wc & 0x3F)); + wc = (wc >> 6) | 0x000000C0; charsize++; - } - buf[outlength] = (char) wc; + } + buf[outlength] = (char) wc; outlength += charsize; - } - } - buf[outlength] = '\0'; - *to = buf; - return outlength; -} - + } + } + buf[outlength] = '\0'; + *to = buf; + return outlength; +} + /* * Convert an ASN.1 String into its UTF-8 string representation. * Return the dynamically allocated string, or NULL if an error occurs. */ static const char *string2str(int type, const char *beg, const char *end) -{ +{ char *buf; - if(utf8asn1str(&buf, type, beg, end) < 0) + if(utf8asn1str(&buf, type, beg, end) < 0) return NULL; - return buf; -} - + return buf; +} + /* * Decimal ASCII encode unsigned integer `x' into the buflen sized buffer at * buf. Return the total number of encoded digits, even if larger than * `buflen'. */ static size_t encodeUint(char *buf, size_t buflen, unsigned int x) -{ +{ size_t i = 0; - unsigned int y = x / 10; - - if(y) { + unsigned int y = x / 10; + + if(y) { i = encodeUint(buf, buflen, y); - x -= y * 10; - } + x -= y * 10; + } if(i < buflen) - buf[i] = (char) ('0' + x); - i++; + buf[i] = (char) ('0' + x); + i++; if(i < buflen) - buf[i] = '\0'; /* Store a terminator if possible. */ - return i; -} - + buf[i] = '\0'; /* Store a terminator if possible. */ + return i; +} + /* * Convert an ASN.1 OID into its dotted string representation. * Store the result in th `n'-byte buffer at `buf'. @@ -388,244 +388,244 @@ static size_t encodeUint(char *buf, size_t buflen, unsigned int x) */ static size_t encodeOID(char *buf, size_t buflen, const char *beg, const char *end) -{ +{ size_t i; - unsigned int x; - unsigned int y; - - /* Process the first two numbers. */ - y = *(const unsigned char *) beg++; - x = y / 40; - y -= x * 40; + unsigned int x; + unsigned int y; + + /* Process the first two numbers. */ + y = *(const unsigned char *) beg++; + x = y / 40; + y -= x * 40; i = encodeUint(buf, buflen, x); if(i < buflen) - buf[i] = '.'; - i++; + buf[i] = '.'; + i++; if(i >= buflen) i += encodeUint(NULL, 0, y); else i += encodeUint(buf + i, buflen - i, y); - - /* Process the trailing numbers. */ - while(beg < end) { + + /* Process the trailing numbers. */ + while(beg < end) { if(i < buflen) - buf[i] = '.'; - i++; - x = 0; - do { - if(x & 0xFF000000) + buf[i] = '.'; + i++; + x = 0; + do { + if(x & 0xFF000000) return 0; - y = *(const unsigned char *) beg++; - x = (x << 7) | (y & 0x7F); - } while(y & 0x80); + y = *(const unsigned char *) beg++; + x = (x << 7) | (y & 0x7F); + } while(y & 0x80); if(i >= buflen) i += encodeUint(NULL, 0, x); else i += encodeUint(buf + i, buflen - i, x); - } + } if(i < buflen) - buf[i] = '\0'; - return i; -} - + buf[i] = '\0'; + return i; +} + /* * Convert an ASN.1 OID into its dotted or symbolic string representation. * Return the dynamically allocated string, or NULL if an error occurs. */ static const char *OID2str(const char *beg, const char *end, bool symbolic) -{ +{ char *buf = NULL; - if(beg < end) { + if(beg < end) { size_t buflen = encodeOID(NULL, 0, beg, end); if(buflen) { buf = malloc(buflen + 1); /* one extra for the zero byte */ - if(buf) { + if(buf) { encodeOID(buf, buflen, beg, end); buf[buflen] = '\0'; - - if(symbolic) { + + if(symbolic) { const struct Curl_OID *op = searchOID(buf); - if(op) { - free(buf); - buf = strdup(op->textoid); - } - } - } - } - } - return buf; -} - + if(op) { + free(buf); + buf = strdup(op->textoid); + } + } + } + } + } + return buf; +} + static const char *GTime2str(const char *beg, const char *end) -{ +{ const char *tzp; const char *fracp; - char sec1, sec2; - size_t fracl; - size_t tzl; + char sec1, sec2; + size_t fracl; + size_t tzl; const char *sep = ""; - - /* Convert an ASN.1 Generalized time to a printable string. - Return the dynamically allocated string, or NULL if an error occurs. */ - - for(fracp = beg; fracp < end && *fracp >= '0' && *fracp <= '9'; fracp++) - ; - - /* Get seconds digits. */ - sec1 = '0'; + + /* Convert an ASN.1 Generalized time to a printable string. + Return the dynamically allocated string, or NULL if an error occurs. */ + + for(fracp = beg; fracp < end && *fracp >= '0' && *fracp <= '9'; fracp++) + ; + + /* Get seconds digits. */ + sec1 = '0'; switch(fracp - beg - 12) { - case 0: - sec2 = '0'; - break; - case 2: - sec1 = fracp[-2]; + case 0: + sec2 = '0'; + break; + case 2: + sec1 = fracp[-2]; /* FALLTHROUGH */ - case 1: - sec2 = fracp[-1]; - break; - default: + case 1: + sec2 = fracp[-1]; + break; + default: return NULL; - } - - /* Scan for timezone, measure fractional seconds. */ - tzp = fracp; - fracl = 0; - if(fracp < end && (*fracp == '.' || *fracp == ',')) { - fracp++; - do - tzp++; - while(tzp < end && *tzp >= '0' && *tzp <= '9'); - /* Strip leading zeroes in fractional seconds. */ - for(fracl = tzp - fracp - 1; fracl && fracp[fracl - 1] == '0'; fracl--) - ; - } - - /* Process timezone. */ - if(tzp >= end) - ; /* Nothing to do. */ - else if(*tzp == 'Z') { - tzp = " GMT"; - end = tzp + 4; - } - else { - sep = " "; - tzp++; - } - - tzl = end - tzp; - return curl_maprintf("%.4s-%.2s-%.2s %.2s:%.2s:%c%c%s%.*s%s%.*s", - beg, beg + 4, beg + 6, - beg + 8, beg + 10, sec1, sec2, - fracl? ".": "", fracl, fracp, - sep, tzl, tzp); -} - + } + + /* Scan for timezone, measure fractional seconds. */ + tzp = fracp; + fracl = 0; + if(fracp < end && (*fracp == '.' || *fracp == ',')) { + fracp++; + do + tzp++; + while(tzp < end && *tzp >= '0' && *tzp <= '9'); + /* Strip leading zeroes in fractional seconds. */ + for(fracl = tzp - fracp - 1; fracl && fracp[fracl - 1] == '0'; fracl--) + ; + } + + /* Process timezone. */ + if(tzp >= end) + ; /* Nothing to do. */ + else if(*tzp == 'Z') { + tzp = " GMT"; + end = tzp + 4; + } + else { + sep = " "; + tzp++; + } + + tzl = end - tzp; + return curl_maprintf("%.4s-%.2s-%.2s %.2s:%.2s:%c%c%s%.*s%s%.*s", + beg, beg + 4, beg + 6, + beg + 8, beg + 10, sec1, sec2, + fracl? ".": "", fracl, fracp, + sep, tzl, tzp); +} + /* * Convert an ASN.1 UTC time to a printable string. * Return the dynamically allocated string, or NULL if an error occurs. */ static const char *UTime2str(const char *beg, const char *end) -{ +{ const char *tzp; - size_t tzl; + size_t tzl; const char *sec; - - for(tzp = beg; tzp < end && *tzp >= '0' && *tzp <= '9'; tzp++) - ; - /* Get the seconds. */ - sec = beg + 10; + + for(tzp = beg; tzp < end && *tzp >= '0' && *tzp <= '9'; tzp++) + ; + /* Get the seconds. */ + sec = beg + 10; switch(tzp - sec) { - case 0: - sec = "00"; - case 2: - break; - default: + case 0: + sec = "00"; + case 2: + break; + default: return NULL; - } - - /* Process timezone. */ - if(tzp >= end) + } + + /* Process timezone. */ + if(tzp >= end) return NULL; - if(*tzp == 'Z') { - tzp = "GMT"; - end = tzp + 3; - } - else - tzp++; - - tzl = end - tzp; - return curl_maprintf("%u%.2s-%.2s-%.2s %.2s:%.2s:%.2s %.*s", - 20 - (*beg >= '5'), beg, beg + 2, beg + 4, - beg + 6, beg + 8, sec, - tzl, tzp); -} - + if(*tzp == 'Z') { + tzp = "GMT"; + end = tzp + 3; + } + else + tzp++; + + tzl = end - tzp; + return curl_maprintf("%u%.2s-%.2s-%.2s %.2s:%.2s:%.2s %.*s", + 20 - (*beg >= '5'), beg, beg + 2, beg + 4, + beg + 6, beg + 8, sec, + tzl, tzp); +} + /* * Convert an ASN.1 element to a printable string. * Return the dynamically allocated string, or NULL if an error occurs. */ static const char *ASN1tostr(struct Curl_asn1Element *elem, int type) -{ - if(elem->constructed) +{ + if(elem->constructed) return NULL; /* No conversion of structured elements. */ - - if(!type) - type = elem->tag; /* Type not forced: use element tag as type. */ - + + if(!type) + type = elem->tag; /* Type not forced: use element tag as type. */ + switch(type) { - case CURL_ASN1_BOOLEAN: - return bool2str(elem->beg, elem->end); - case CURL_ASN1_INTEGER: - case CURL_ASN1_ENUMERATED: - return int2str(elem->beg, elem->end); - case CURL_ASN1_BIT_STRING: - return bit2str(elem->beg, elem->end); - case CURL_ASN1_OCTET_STRING: - return octet2str(elem->beg, elem->end); - case CURL_ASN1_NULL: + case CURL_ASN1_BOOLEAN: + return bool2str(elem->beg, elem->end); + case CURL_ASN1_INTEGER: + case CURL_ASN1_ENUMERATED: + return int2str(elem->beg, elem->end); + case CURL_ASN1_BIT_STRING: + return bit2str(elem->beg, elem->end); + case CURL_ASN1_OCTET_STRING: + return octet2str(elem->beg, elem->end); + case CURL_ASN1_NULL: return strdup(""); - case CURL_ASN1_OBJECT_IDENTIFIER: - return OID2str(elem->beg, elem->end, TRUE); - case CURL_ASN1_UTC_TIME: - return UTime2str(elem->beg, elem->end); - case CURL_ASN1_GENERALIZED_TIME: - return GTime2str(elem->beg, elem->end); - case CURL_ASN1_UTF8_STRING: - case CURL_ASN1_NUMERIC_STRING: - case CURL_ASN1_PRINTABLE_STRING: - case CURL_ASN1_TELETEX_STRING: - case CURL_ASN1_IA5_STRING: - case CURL_ASN1_VISIBLE_STRING: - case CURL_ASN1_UNIVERSAL_STRING: - case CURL_ASN1_BMP_STRING: - return string2str(type, elem->beg, elem->end); - } - + case CURL_ASN1_OBJECT_IDENTIFIER: + return OID2str(elem->beg, elem->end, TRUE); + case CURL_ASN1_UTC_TIME: + return UTime2str(elem->beg, elem->end); + case CURL_ASN1_GENERALIZED_TIME: + return GTime2str(elem->beg, elem->end); + case CURL_ASN1_UTF8_STRING: + case CURL_ASN1_NUMERIC_STRING: + case CURL_ASN1_PRINTABLE_STRING: + case CURL_ASN1_TELETEX_STRING: + case CURL_ASN1_IA5_STRING: + case CURL_ASN1_VISIBLE_STRING: + case CURL_ASN1_UNIVERSAL_STRING: + case CURL_ASN1_BMP_STRING: + return string2str(type, elem->beg, elem->end); + } + return NULL; /* Unsupported. */ -} - +} + /* * ASCII encode distinguished name at `dn' into the `buflen'-sized buffer at * `buf'. Return the total string length, even if larger than `buflen'. */ static ssize_t encodeDN(char *buf, size_t buflen, struct Curl_asn1Element *dn) -{ +{ struct Curl_asn1Element rdn; struct Curl_asn1Element atv; struct Curl_asn1Element oid; struct Curl_asn1Element value; - size_t l = 0; + size_t l = 0; const char *p1; const char *p2; const char *p3; const char *str; - - for(p1 = dn->beg; p1 < dn->end;) { + + for(p1 = dn->beg; p1 < dn->end;) { p1 = getASN1Element(&rdn, p1, dn->end); if(!p1) return -1; - for(p2 = rdn.beg; p2 < rdn.end;) { + for(p2 = rdn.beg; p2 < rdn.end;) { p2 = getASN1Element(&atv, p2, rdn.end); if(!p2) return -1; @@ -635,129 +635,129 @@ static ssize_t encodeDN(char *buf, size_t buflen, struct Curl_asn1Element *dn) if(!getASN1Element(&value, p3, atv.end)) return -1; str = ASN1tostr(&oid, 0); - if(!str) - return -1; - - /* Encode delimiter. - If attribute has a short uppercase name, delimiter is ", ". */ - if(l) { - for(p3 = str; isupper(*p3); p3++) - ; - for(p3 = (*p3 || p3 - str > 2)? "/": ", "; *p3; p3++) { + if(!str) + return -1; + + /* Encode delimiter. + If attribute has a short uppercase name, delimiter is ", ". */ + if(l) { + for(p3 = str; isupper(*p3); p3++) + ; + for(p3 = (*p3 || p3 - str > 2)? "/": ", "; *p3; p3++) { if(l < buflen) - buf[l] = *p3; - l++; - } - } - - /* Encode attribute name. */ - for(p3 = str; *p3; p3++) { + buf[l] = *p3; + l++; + } + } + + /* Encode attribute name. */ + for(p3 = str; *p3; p3++) { if(l < buflen) - buf[l] = *p3; - l++; - } - free((char *) str); - - /* Generate equal sign. */ + buf[l] = *p3; + l++; + } + free((char *) str); + + /* Generate equal sign. */ if(l < buflen) - buf[l] = '='; - l++; - - /* Generate value. */ + buf[l] = '='; + l++; + + /* Generate value. */ str = ASN1tostr(&value, 0); - if(!str) - return -1; - for(p3 = str; *p3; p3++) { + if(!str) + return -1; + for(p3 = str; *p3; p3++) { if(l < buflen) - buf[l] = *p3; - l++; - } - free((char *) str); - } - } - - return l; -} - + buf[l] = *p3; + l++; + } + free((char *) str); + } + } + + return l; +} + /* * Convert an ASN.1 distinguished name into a printable string. * Return the dynamically allocated string, or NULL if an error occurs. */ static const char *DNtostr(struct Curl_asn1Element *dn) -{ +{ char *buf = NULL; ssize_t buflen = encodeDN(NULL, 0, dn); - + if(buflen >= 0) { buf = malloc(buflen + 1); - if(buf) { + if(buf) { encodeDN(buf, buflen + 1, dn); buf[buflen] = '\0'; - } - } + } + } return buf; -} - -/* +} + +/* * ASN.1 parse an X509 certificate into structure subfields. * Syntax is assumed to have already been checked by the SSL backend. * See RFC 5280. - */ + */ int Curl_parseX509(struct Curl_X509certificate *cert, const char *beg, const char *end) -{ +{ struct Curl_asn1Element elem; struct Curl_asn1Element tbsCertificate; const char *ccp; - static const char defaultVersion = 0; /* v1. */ - + static const char defaultVersion = 0; /* v1. */ + cert->certificate.header = NULL; - cert->certificate.beg = beg; - cert->certificate.end = end; - - /* Get the sequence content. */ + cert->certificate.beg = beg; + cert->certificate.end = end; + + /* Get the sequence content. */ if(!getASN1Element(&elem, beg, end)) return -1; /* Invalid bounds/size. */ - beg = elem.beg; - end = elem.end; - - /* Get tbsCertificate. */ + beg = elem.beg; + end = elem.end; + + /* Get tbsCertificate. */ beg = getASN1Element(&tbsCertificate, beg, end); if(!beg) return -1; - /* Skip the signatureAlgorithm. */ + /* Skip the signatureAlgorithm. */ beg = getASN1Element(&cert->signatureAlgorithm, beg, end); if(!beg) return -1; - /* Get the signatureValue. */ + /* Get the signatureValue. */ if(!getASN1Element(&cert->signature, beg, end)) return -1; - - /* Parse TBSCertificate. */ - beg = tbsCertificate.beg; - end = tbsCertificate.end; - /* Get optional version, get serialNumber. */ + + /* Parse TBSCertificate. */ + beg = tbsCertificate.beg; + end = tbsCertificate.end; + /* Get optional version, get serialNumber. */ cert->version.header = NULL; - cert->version.beg = &defaultVersion; + cert->version.beg = &defaultVersion; cert->version.end = &defaultVersion + sizeof(defaultVersion); beg = getASN1Element(&elem, beg, end); if(!beg) return -1; - if(elem.tag == 0) { + if(elem.tag == 0) { if(!getASN1Element(&cert->version, elem.beg, elem.end)) return -1; beg = getASN1Element(&elem, beg, end); if(!beg) return -1; - } - cert->serialNumber = elem; - /* Get signature algorithm. */ + } + cert->serialNumber = elem; + /* Get signature algorithm. */ beg = getASN1Element(&cert->signatureAlgorithm, beg, end); - /* Get issuer. */ + /* Get issuer. */ beg = getASN1Element(&cert->issuer, beg, end); if(!beg) return -1; - /* Get notBefore and notAfter. */ + /* Get notBefore and notAfter. */ beg = getASN1Element(&elem, beg, end); if(!beg) return -1; @@ -766,11 +766,11 @@ int Curl_parseX509(struct Curl_X509certificate *cert, return -1; if(!getASN1Element(&cert->notAfter, ccp, elem.end)) return -1; - /* Get subject. */ + /* Get subject. */ beg = getASN1Element(&cert->subject, beg, end); if(!beg) return -1; - /* Get subjectPublicKeyAlgorithm and subjectPublicKey. */ + /* Get subjectPublicKeyAlgorithm and subjectPublicKey. */ beg = getASN1Element(&cert->subjectPublicKeyInfo, beg, end); if(!beg) return -1; @@ -782,109 +782,109 @@ int Curl_parseX509(struct Curl_X509certificate *cert, if(!getASN1Element(&cert->subjectPublicKey, ccp, cert->subjectPublicKeyInfo.end)) return -1; - /* Get optional issuerUiqueID, subjectUniqueID and extensions. */ - cert->issuerUniqueID.tag = cert->subjectUniqueID.tag = 0; - cert->extensions.tag = elem.tag = 0; + /* Get optional issuerUiqueID, subjectUniqueID and extensions. */ + cert->issuerUniqueID.tag = cert->subjectUniqueID.tag = 0; + cert->extensions.tag = elem.tag = 0; cert->issuerUniqueID.header = cert->subjectUniqueID.header = NULL; - cert->issuerUniqueID.beg = cert->issuerUniqueID.end = ""; - cert->subjectUniqueID.beg = cert->subjectUniqueID.end = ""; + cert->issuerUniqueID.beg = cert->issuerUniqueID.end = ""; + cert->subjectUniqueID.beg = cert->subjectUniqueID.end = ""; cert->extensions.header = NULL; - cert->extensions.beg = cert->extensions.end = ""; + cert->extensions.beg = cert->extensions.end = ""; if(beg < end) { beg = getASN1Element(&elem, beg, end); if(!beg) return -1; } - if(elem.tag == 1) { - cert->issuerUniqueID = elem; + if(elem.tag == 1) { + cert->issuerUniqueID = elem; if(beg < end) { beg = getASN1Element(&elem, beg, end); if(!beg) return -1; } - } - if(elem.tag == 2) { - cert->subjectUniqueID = elem; + } + if(elem.tag == 2) { + cert->subjectUniqueID = elem; if(beg < end) { beg = getASN1Element(&elem, beg, end); if(!beg) return -1; } - } - if(elem.tag == 3) + } + if(elem.tag == 3) if(!getASN1Element(&cert->extensions, elem.beg, elem.end)) return -1; return 0; -} - +} + /* * Copy at most 64-characters, terminate with a newline and returns the * effective number of stored characters. */ static size_t copySubstring(char *to, const char *from) -{ - size_t i; - for(i = 0; i < 64; i++) { - to[i] = *from; - if(!*from++) - break; - } - - to[i++] = '\n'; - return i; -} - +{ + size_t i; + for(i = 0; i < 64; i++) { + to[i] = *from; + if(!*from++) + break; + } + + to[i++] = '\n'; + return i; +} + static const char *dumpAlgo(struct Curl_asn1Element *param, const char *beg, const char *end) -{ +{ struct Curl_asn1Element oid; - - /* Get algorithm parameters and return algorithm name. */ - + + /* Get algorithm parameters and return algorithm name. */ + beg = getASN1Element(&oid, beg, end); if(!beg) return NULL; param->header = NULL; - param->tag = 0; - param->beg = param->end = end; - if(beg < end) + param->tag = 0; + param->beg = param->end = end; + if(beg < end) if(!getASN1Element(param, beg, end)) return NULL; - return OID2str(oid.beg, oid.end, TRUE); -} - + return OID2str(oid.beg, oid.end, TRUE); +} + static void do_pubkey_field(struct Curl_easy *data, int certnum, const char *label, struct Curl_asn1Element *elem) -{ +{ const char *output; - - /* Generate a certificate information record for the public key. */ - + + /* Generate a certificate information record for the public key. */ + output = ASN1tostr(elem, 0); - if(output) { + if(output) { if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, label, output); if(!certnum) infof(data, " %s: %s\n", label, output); - free((char *) output); - } -} - + free((char *) output); + } +} + static void do_pubkey(struct Curl_easy *data, int certnum, const char *algo, struct Curl_asn1Element *param, struct Curl_asn1Element *pubkey) -{ +{ struct Curl_asn1Element elem; struct Curl_asn1Element pk; const char *p; - - /* Generate all information records for the public key. */ - - /* Get the public key (single element). */ + + /* Generate all information records for the public key. */ + + /* Get the public key (single element). */ if(!getASN1Element(&pk, pubkey->beg + 1, pubkey->end)) return; - + if(strcasecompare(algo, "rsaEncryption")) { const char *q; unsigned long len; @@ -893,17 +893,17 @@ static void do_pubkey(struct Curl_easy *data, int certnum, if(!p) return; - /* Compute key length. */ - for(q = elem.beg; !*q && q < elem.end; q++) - ; + /* Compute key length. */ + for(q = elem.beg; !*q && q < elem.end; q++) + ; len = (unsigned long)((elem.end - q) * 8); if(len) { unsigned int i; - for(i = *(unsigned char *) q; !(i & 0x80); i <<= 1) - len--; + for(i = *(unsigned char *) q; !(i & 0x80); i <<= 1) + len--; } - if(len > 32) - elem.beg = q; /* Strip leading zero bytes. */ + if(len > 32) + elem.beg = q; /* Strip leading zero bytes. */ if(!certnum) infof(data, " RSA Public Key (%lu bits)\n", len); if(data->set.ssl.certinfo) { @@ -912,13 +912,13 @@ static void do_pubkey(struct Curl_easy *data, int certnum, Curl_ssl_push_certinfo(data, certnum, "RSA Public Key", q); free((char *) q); } - } - /* Generate coefficients. */ - do_pubkey_field(data, certnum, "rsa(n)", &elem); + } + /* Generate coefficients. */ + do_pubkey_field(data, certnum, "rsa(n)", &elem); if(!getASN1Element(&elem, p, pk.end)) return; - do_pubkey_field(data, certnum, "rsa(e)", &elem); - } + do_pubkey_field(data, certnum, "rsa(e)", &elem); + } else if(strcasecompare(algo, "dsa")) { p = getASN1Element(&elem, param->beg, param->end); if(p) { @@ -932,7 +932,7 @@ static void do_pubkey(struct Curl_easy *data, int certnum, } } } - } + } else if(strcasecompare(algo, "dhpublicnumber")) { p = getASN1Element(&elem, param->beg, param->end); if(p) { @@ -942,60 +942,60 @@ static void do_pubkey(struct Curl_easy *data, int certnum, do_pubkey_field(data, certnum, "dh(pub_key)", &pk); } } - } -} - + } +} + CURLcode Curl_extract_certinfo(struct connectdata *conn, - int certnum, + int certnum, const char *beg, const char *end) -{ +{ struct Curl_X509certificate cert; struct Curl_easy *data = conn->data; struct Curl_asn1Element param; const char *ccp; char *cp1; - size_t cl1; + size_t cl1; char *cp2; CURLcode result; - unsigned long version; - size_t i; - size_t j; - + unsigned long version; + size_t i; + size_t j; + if(!data->set.ssl.certinfo) if(certnum) return CURLE_OK; - /* Prepare the certificate information for curl_easy_getinfo(). */ - - /* Extract the certificate ASN.1 elements. */ + /* Prepare the certificate information for curl_easy_getinfo(). */ + + /* Extract the certificate ASN.1 elements. */ if(Curl_parseX509(&cert, beg, end)) return CURLE_PEER_FAILED_VERIFICATION; - - /* Subject. */ + + /* Subject. */ ccp = DNtostr(&cert.subject); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Subject", ccp); if(!certnum) infof(data, "%2d Subject: %s\n", certnum, ccp); - free((char *) ccp); - - /* Issuer. */ + free((char *) ccp); + + /* Issuer. */ ccp = DNtostr(&cert.issuer); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Issuer", ccp); if(!certnum) infof(data, " Issuer: %s\n", ccp); - free((char *) ccp); - - /* Version (always fits in less than 32 bits). */ - version = 0; - for(ccp = cert.version.beg; ccp < cert.version.end; ccp++) - version = (version << 8) | *(const unsigned char *) ccp; + free((char *) ccp); + + /* Version (always fits in less than 32 bits). */ + version = 0; + for(ccp = cert.version.beg; ccp < cert.version.end; ccp++) + version = (version << 8) | *(const unsigned char *) ccp; if(data->set.ssl.certinfo) { ccp = curl_maprintf("%lx", version); if(!ccp) @@ -1005,112 +1005,112 @@ CURLcode Curl_extract_certinfo(struct connectdata *conn, } if(!certnum) infof(data, " Version: %lu (0x%lx)\n", version + 1, version); - - /* Serial number. */ + + /* Serial number. */ ccp = ASN1tostr(&cert.serialNumber, 0); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Serial Number", ccp); if(!certnum) infof(data, " Serial Number: %s\n", ccp); - free((char *) ccp); - - /* Signature algorithm .*/ - ccp = dumpAlgo(¶m, cert.signatureAlgorithm.beg, - cert.signatureAlgorithm.end); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + free((char *) ccp); + + /* Signature algorithm .*/ + ccp = dumpAlgo(¶m, cert.signatureAlgorithm.beg, + cert.signatureAlgorithm.end); + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Signature Algorithm", ccp); if(!certnum) infof(data, " Signature Algorithm: %s\n", ccp); - free((char *) ccp); - - /* Start Date. */ + free((char *) ccp); + + /* Start Date. */ ccp = ASN1tostr(&cert.notBefore, 0); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Start Date", ccp); if(!certnum) infof(data, " Start Date: %s\n", ccp); - free((char *) ccp); - - /* Expire Date. */ + free((char *) ccp); + + /* Expire Date. */ ccp = ASN1tostr(&cert.notAfter, 0); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Expire Date", ccp); if(!certnum) infof(data, " Expire Date: %s\n", ccp); - free((char *) ccp); - - /* Public Key Algorithm. */ - ccp = dumpAlgo(¶m, cert.subjectPublicKeyAlgorithm.beg, - cert.subjectPublicKeyAlgorithm.end); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + free((char *) ccp); + + /* Public Key Algorithm. */ + ccp = dumpAlgo(¶m, cert.subjectPublicKeyAlgorithm.beg, + cert.subjectPublicKeyAlgorithm.end); + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Public Key Algorithm", ccp); if(!certnum) infof(data, " Public Key Algorithm: %s\n", ccp); - do_pubkey(data, certnum, ccp, ¶m, &cert.subjectPublicKey); - free((char *) ccp); - - /* Signature. */ + do_pubkey(data, certnum, ccp, ¶m, &cert.subjectPublicKey); + free((char *) ccp); + + /* Signature. */ ccp = ASN1tostr(&cert.signature, 0); - if(!ccp) - return CURLE_OUT_OF_MEMORY; + if(!ccp) + return CURLE_OUT_OF_MEMORY; if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Signature", ccp); if(!certnum) infof(data, " Signature: %s\n", ccp); - free((char *) ccp); - - /* Generate PEM certificate. */ + free((char *) ccp); + + /* Generate PEM certificate. */ result = Curl_base64_encode(data, cert.certificate.beg, cert.certificate.end - cert.certificate.beg, &cp1, &cl1); if(result) return result; /* Compute the number of characters in final certificate string. Format is: - -----BEGIN CERTIFICATE-----\n - <max 64 base64 characters>\n - . - . - . - -----END CERTIFICATE-----\n - */ - i = 28 + cl1 + (cl1 + 64 - 1) / 64 + 26; - cp2 = malloc(i + 1); - if(!cp2) { - free(cp1); - return CURLE_OUT_OF_MEMORY; - } - /* Build the certificate string. */ - i = copySubstring(cp2, "-----BEGIN CERTIFICATE-----"); - for(j = 0; j < cl1; j += 64) - i += copySubstring(cp2 + i, cp1 + j); - i += copySubstring(cp2 + i, "-----END CERTIFICATE-----"); - cp2[i] = '\0'; - free(cp1); + -----BEGIN CERTIFICATE-----\n + <max 64 base64 characters>\n + . + . + . + -----END CERTIFICATE-----\n + */ + i = 28 + cl1 + (cl1 + 64 - 1) / 64 + 26; + cp2 = malloc(i + 1); + if(!cp2) { + free(cp1); + return CURLE_OUT_OF_MEMORY; + } + /* Build the certificate string. */ + i = copySubstring(cp2, "-----BEGIN CERTIFICATE-----"); + for(j = 0; j < cl1; j += 64) + i += copySubstring(cp2 + i, cp1 + j); + i += copySubstring(cp2 + i, "-----END CERTIFICATE-----"); + cp2[i] = '\0'; + free(cp1); if(data->set.ssl.certinfo) Curl_ssl_push_certinfo(data, certnum, "Cert", cp2); if(!certnum) infof(data, "%s\n", cp2); - free(cp2); - return CURLE_OK; -} - + free(cp2); + return CURLE_OK; +} + #endif /* USE_GSKIT or USE_NSS or USE_GNUTLS or USE_WOLFSSL or USE_SCHANNEL */ - + #if defined(USE_GSKIT) static const char *checkOID(const char *beg, const char *end, const char *oid) -{ +{ struct Curl_asn1Element e; const char *ccp; const char *p; @@ -1144,139 +1144,139 @@ CURLcode Curl_verifyhost(struct connectdata *conn, const char *p; const char *q; char *dnsname; - int matched = -1; - size_t addrlen = (size_t) -1; - ssize_t len; + int matched = -1; + size_t addrlen = (size_t) -1; + ssize_t len; const char *const hostname = SSL_IS_PROXY()? conn->http_proxy.host.name : conn->host.name; const char *const dispname = SSL_IS_PROXY()? conn->http_proxy.host.dispname : conn->host.dispname; -#ifdef ENABLE_IPV6 - struct in6_addr addr; -#else - struct in_addr addr; -#endif - - /* Verify that connection server matches info in X509 certificate at - `beg'..`end'. */ - +#ifdef ENABLE_IPV6 + struct in6_addr addr; +#else + struct in_addr addr; +#endif + + /* Verify that connection server matches info in X509 certificate at + `beg'..`end'. */ + if(!SSL_CONN_CONFIG(verifyhost)) - return CURLE_OK; - + return CURLE_OK; + if(Curl_parseX509(&cert, beg, end)) - return CURLE_PEER_FAILED_VERIFICATION; - - /* Get the server IP address. */ -#ifdef ENABLE_IPV6 + return CURLE_PEER_FAILED_VERIFICATION; + + /* Get the server IP address. */ +#ifdef ENABLE_IPV6 if(conn->bits.ipv6_ip && Curl_inet_pton(AF_INET6, hostname, &addr)) - addrlen = sizeof(struct in6_addr); - else -#endif + addrlen = sizeof(struct in6_addr); + else +#endif if(Curl_inet_pton(AF_INET, hostname, &addr)) - addrlen = sizeof(struct in_addr); - - /* Process extensions. */ - for(p = cert.extensions.beg; p < cert.extensions.end && matched != 1;) { + addrlen = sizeof(struct in_addr); + + /* Process extensions. */ + for(p = cert.extensions.beg; p < cert.extensions.end && matched != 1;) { p = getASN1Element(&ext, p, cert.extensions.end); if(!p) return CURLE_PEER_FAILED_VERIFICATION; - /* Check if extension is a subjectAlternativeName. */ - ext.beg = checkOID(ext.beg, ext.end, sanOID); - if(ext.beg) { + /* Check if extension is a subjectAlternativeName. */ + ext.beg = checkOID(ext.beg, ext.end, sanOID); + if(ext.beg) { ext.beg = getASN1Element(&elem, ext.beg, ext.end); if(!ext.beg) return CURLE_PEER_FAILED_VERIFICATION; - /* Skip critical if present. */ + /* Skip critical if present. */ if(elem.tag == CURL_ASN1_BOOLEAN) { ext.beg = getASN1Element(&elem, ext.beg, ext.end); if(!ext.beg) return CURLE_PEER_FAILED_VERIFICATION; } - /* Parse the octet string contents: is a single sequence. */ + /* Parse the octet string contents: is a single sequence. */ if(!getASN1Element(&elem, elem.beg, elem.end)) return CURLE_PEER_FAILED_VERIFICATION; - /* Check all GeneralNames. */ - for(q = elem.beg; matched != 1 && q < elem.end;) { + /* Check all GeneralNames. */ + for(q = elem.beg; matched != 1 && q < elem.end;) { q = getASN1Element(&name, q, elem.end); if(!q) break; switch(name.tag) { - case 2: /* DNS name. */ - len = utf8asn1str(&dnsname, CURL_ASN1_IA5_STRING, - name.beg, name.end); + case 2: /* DNS name. */ + len = utf8asn1str(&dnsname, CURL_ASN1_IA5_STRING, + name.beg, name.end); if(len > 0 && (size_t)len == strlen(dnsname)) matched = Curl_cert_hostcheck(dnsname, hostname); else matched = 0; free(dnsname); - break; - - case 7: /* IP address. */ + break; + + case 7: /* IP address. */ matched = (size_t) (name.end - name.beg) == addrlen && !memcmp(&addr, name.beg, addrlen); - break; - } - } - } - } - + break; + } + } + } + } + switch(matched) { - case 1: - /* an alternative name matched the server hostname */ + case 1: + /* an alternative name matched the server hostname */ infof(data, "\t subjectAltName: %s matched\n", dispname); - return CURLE_OK; - case 0: - /* an alternative name field existed, but didn't match and then - we MUST fail */ + return CURLE_OK; + case 0: + /* an alternative name field existed, but didn't match and then + we MUST fail */ infof(data, "\t subjectAltName does not match %s\n", dispname); - return CURLE_PEER_FAILED_VERIFICATION; - } - - /* Process subject. */ + return CURLE_PEER_FAILED_VERIFICATION; + } + + /* Process subject. */ name.header = NULL; - name.beg = name.end = ""; - q = cert.subject.beg; - /* we have to look to the last occurrence of a commonName in the - distinguished one to get the most significant one. */ - while(q < cert.subject.end) { + name.beg = name.end = ""; + q = cert.subject.beg; + /* we have to look to the last occurrence of a commonName in the + distinguished one to get the most significant one. */ + while(q < cert.subject.end) { q = getASN1Element(&dn, q, cert.subject.end); if(!q) break; - for(p = dn.beg; p < dn.end;) { + for(p = dn.beg; p < dn.end;) { p = getASN1Element(&elem, p, dn.end); if(!p) return CURLE_PEER_FAILED_VERIFICATION; - /* We have a DN's AttributeTypeAndValue: check it in case it's a CN. */ - elem.beg = checkOID(elem.beg, elem.end, cnOID); - if(elem.beg) - name = elem; /* Latch CN. */ - } - } - - /* Check the CN if found. */ + /* We have a DN's AttributeTypeAndValue: check it in case it's a CN. */ + elem.beg = checkOID(elem.beg, elem.end, cnOID); + if(elem.beg) + name = elem; /* Latch CN. */ + } + } + + /* Check the CN if found. */ if(!getASN1Element(&elem, name.beg, name.end)) - failf(data, "SSL: unable to obtain common name from peer certificate"); - else { - len = utf8asn1str(&dnsname, elem.tag, elem.beg, elem.end); - if(len < 0) { - free(dnsname); - return CURLE_OUT_OF_MEMORY; - } - if(strlen(dnsname) != (size_t) len) /* Nul byte in string ? */ - failf(data, "SSL: illegal cert name field"); + failf(data, "SSL: unable to obtain common name from peer certificate"); + else { + len = utf8asn1str(&dnsname, elem.tag, elem.beg, elem.end); + if(len < 0) { + free(dnsname); + return CURLE_OUT_OF_MEMORY; + } + if(strlen(dnsname) != (size_t) len) /* Nul byte in string ? */ + failf(data, "SSL: illegal cert name field"); else if(Curl_cert_hostcheck((const char *) dnsname, hostname)) { - infof(data, "\t common name: %s (matched)\n", dnsname); - free(dnsname); - return CURLE_OK; - } - else - failf(data, "SSL: certificate subject name '%s' does not match " + infof(data, "\t common name: %s (matched)\n", dnsname); + free(dnsname); + return CURLE_OK; + } + else + failf(data, "SSL: certificate subject name '%s' does not match " "target host name '%s'", dnsname, dispname); - free(dnsname); - } - - return CURLE_PEER_FAILED_VERIFICATION; -} - + free(dnsname); + } + + return CURLE_PEER_FAILED_VERIFICATION; +} + #endif /* USE_GSKIT */ |