curl build with http3 support

commit_hash:9033848a94b58ad32fb6c296eca4f77af9cda070

1 files changed, 112 insertions, 0 deletions

diff --git a/contrib/libs/ngtcp2/lib/ngtcp2_crypto.c b/contrib/libs/ngtcp2/lib/ngtcp2_crypto.c
new file mode 100644
index 0000000000..1f74e8c583
--- /dev/null
+++ b/contrib/libs/ngtcp2/lib/ngtcp2_crypto.c
@@ -0,0 +1,112 @@
+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2017 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "ngtcp2_crypto.h"
+
+#include <string.h>
+#include <assert.h>
+
+#include "ngtcp2_net.h"
+
+int ngtcp2_crypto_km_new(ngtcp2_crypto_km **pckm, const uint8_t *secret,
+                         size_t secretlen,
+                         const ngtcp2_crypto_aead_ctx *aead_ctx,
+                         const uint8_t *iv, size_t ivlen,
+                         const ngtcp2_mem *mem) {
+  int rv = ngtcp2_crypto_km_nocopy_new(pckm, secretlen, ivlen, mem);
+  if (rv != 0) {
+    return rv;
+  }
+
+  if (secretlen) {
+    memcpy((*pckm)->secret.base, secret, secretlen);
+  }
+
+  if (aead_ctx) {
+    (*pckm)->aead_ctx = *aead_ctx;
+  }
+
+  memcpy((*pckm)->iv.base, iv, ivlen);
+
+  return 0;
+}
+
+int ngtcp2_crypto_km_nocopy_new(ngtcp2_crypto_km **pckm, size_t secretlen,
+                                size_t ivlen, const ngtcp2_mem *mem) {
+  size_t len;
+  uint8_t *p;
+
+  len = sizeof(ngtcp2_crypto_km) + secretlen + ivlen;
+
+  *pckm = ngtcp2_mem_malloc(mem, len);
+  if (*pckm == NULL) {
+    return NGTCP2_ERR_NOMEM;
+  }
+
+  p = (uint8_t *)(*pckm) + sizeof(ngtcp2_crypto_km);
+  (*pckm)->secret.base = p;
+  (*pckm)->secret.len = secretlen;
+  p += secretlen;
+  (*pckm)->iv.base = p;
+  (*pckm)->iv.len = ivlen;
+  (*pckm)->aead_ctx.native_handle = NULL;
+  (*pckm)->pkt_num = -1;
+  (*pckm)->use_count = 0;
+  (*pckm)->flags = NGTCP2_CRYPTO_KM_FLAG_NONE;
+
+  return 0;
+}
+
+void ngtcp2_crypto_km_del(ngtcp2_crypto_km *ckm, const ngtcp2_mem *mem) {
+  if (ckm == NULL) {
+    return;
+  }
+
+  if (ckm->secret.len) {
+#ifdef WIN32
+    SecureZeroMemory(ckm->secret.base, ckm->secret.len);
+#elif defined(HAVE_EXPLICIT_BZERO)
+    explicit_bzero(ckm->secret.base, ckm->secret.len);
+#elif defined(HAVE_MEMSET_S)
+    memset_s(ckm->secret.base, ckm->secret.len, 0, ckm->secret.len);
+#endif /* defined(HAVE_MEMSET_S) */
+  }
+
+  ngtcp2_mem_free(mem, ckm);
+}
+
+void ngtcp2_crypto_create_nonce(uint8_t *dest, const uint8_t *iv, size_t ivlen,
+                                int64_t pkt_num) {
+  uint64_t n;
+
+  assert(ivlen >= sizeof(n));
+
+  memcpy(dest, iv, ivlen);
+
+  dest += ivlen - sizeof(n);
+
+  memcpy(&n, dest, sizeof(n));
+  n ^= ngtcp2_htonl64((uint64_t)pkt_num);
+  memcpy(dest, &n, sizeof(n));
+}