Implement TLS 1.2.

net/third_party/nss/ssl/ssl3prot.h

Index: net/third_party/nss/ssl/ssl3prot.h
===================================================================
--- net/third_party/nss/ssl/ssl3prot.h	(revision 199250)
+++ net/third_party/nss/ssl/ssl3prot.h	(working copy)
@@ -212,11 +212,51 @@
     } u;
 } SSL3ServerParams;
 
+/* This enum reflects HashAlgorithm enum from
+ * https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1
+ *
+ * When updating, be sure to also update ssl3_TLSHashFunctionToOID */
+enum {
+    tls_hash_md5 = 1,
+    tls_hash_sha1 = 2,
+    tls_hash_sha224 = 3,
+    tls_hash_sha256 = 4,
+    tls_hash_sha384 = 5,
+    tls_hash_sha512 = 6
+};
+
+/* This enum reflects SignatureAlgorithm enum from
+ * https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1 */
+typedef enum {
+    tls_sig_rsa = 1,
+    tls_sig_dsa = 2,
+    tls_sig_ecdsa = 3
+} TLS12SignatureAlgorithm;
+
 typedef struct {
+    SECOidTag hashAlg;
+    TLS12SignatureAlgorithm sigAlg;
+} SSL3SignatureAndHashAlgorithm;
+
+/* SSL3HashesIndividually contains a combination MD5/SHA1 hash, as used in TLS
+ * prior to 1.2. */
+struct SSL3HashesIndividually {
     uint8 md5[16];
     uint8 sha[20];
+};
+
+/* SSL3Hashes contains an SSL hash value. The digest is contained in |u.raw|
+ * which, if |hashAlg==SEC_OID_UNKNOWN| is also a SSL3HashesIndividually
+ * struct. */
+typedef struct {
+    unsigned int len;
+    SECOidTag hashAlg;
+    union {
+	PRUint8 raw[32];
+	struct SSL3HashesIndividually s;
+    } u;
 } SSL3Hashes;
-     
+
 typedef struct {
     union {
 	SSL3Opaque anonymous;