Keep old method in case of an unsupported protocol

[openssl.git] / ssl / s3_enc.c

diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c
index a0eac77d7d872676c19691742a6e9d50ab5cf8c2..9db45af7ea7f5af8bf4f1e9a07b202edfe49ff33 100644 (file)
--- a/ssl/s3_enc.c
+++ b/ssl/s3_enc.c
@@ -642,10 +642,18 @@ int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p)
 int ssl3_final_finish_mac(SSL *s, 
             const char *sender, int len, unsigned char *p)
        {
-       int ret;
+       int ret, sha1len;
        ret=ssl3_handshake_mac(s,NID_md5,sender,len,p);
+       if(ret == 0)
+               return 0;
+
        p+=ret;
-       ret+=ssl3_handshake_mac(s,NID_sha1,sender,len,p);
+
+       sha1len=ssl3_handshake_mac(s,NID_sha1,sender,len,p);
+       if(sha1len == 0)
+               return 0;
+
+       ret+=sha1len;
        return(ret);
        }
 static int ssl3_handshake_mac(SSL *s, int md_nid,
@@ -709,7 +717,7 @@ int n_ssl3_mac(SSL *ssl, unsigned char *md, int send)
        EVP_MD_CTX md_ctx;
        const EVP_MD_CTX *hash;
        unsigned char *p,rec_char;
-       size_t md_size;
+       size_t md_size, orig_len;
        int npad;
        int t;
 
@@ -734,6 +742,10 @@ int n_ssl3_mac(SSL *ssl, unsigned char *md, int send)
        md_size=t;
        npad=(48/md_size)*md_size;
 
+       /* kludge: ssl3_cbc_remove_padding passes padding length in rec->type */
+       orig_len = rec->length+md_size+((unsigned int)rec->type>>8);
+       rec->type &= 0xff;
+
        if (!send &&
            EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
            ssl3_cbc_record_digest_supported(hash))
@@ -765,7 +777,7 @@ int n_ssl3_mac(SSL *ssl, unsigned char *md, int send)
                        hash,
                        md, &md_size,
                        header, rec->input,
-                       rec->length + md_size, rec->orig_len,
+                       rec->length + md_size, orig_len,
                        mac_sec, md_size,
                        1 /* is SSLv3 */);
                }
@@ -888,7 +900,7 @@ int ssl3_alert_code(int code)
        case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(SSL3_AD_HANDSHAKE_FAILURE);
        case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(SSL3_AD_HANDSHAKE_FAILURE);
        case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY);
+       case SSL_AD_INAPPROPRIATE_FALLBACK:return(TLS1_AD_INAPPROPRIATE_FALLBACK);
        default:                        return(-1);
                }
        }
-