diff options
Diffstat (limited to 'crypto/openssl/ssl/t1_lib.c')
| -rw-r--r-- | crypto/openssl/ssl/t1_lib.c | 73 |
1 files changed, 38 insertions, 35 deletions
diff --git a/crypto/openssl/ssl/t1_lib.c b/crypto/openssl/ssl/t1_lib.c index 3b8d515..022a4fb 100644 --- a/crypto/openssl/ssl/t1_lib.c +++ b/crypto/openssl/ssl/t1_lib.c @@ -352,15 +352,16 @@ int tls12_get_req_sig_algs(SSL *s, unsigned char *p) return (int)slen; } -unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit) +unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit) { int extdatalen=0; - unsigned char *ret = p; + unsigned char *orig = buf; + unsigned char *ret = buf; /* don't add extensions for SSLv3 unless doing secure renegotiation */ if (s->client_version == SSL3_VERSION && !s->s3->send_connection_binding) - return p; + return orig; ret+=2; @@ -409,7 +410,7 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned cha return NULL; } - if((limit - p - 4 - el) < 0) return NULL; + if((limit - ret - 4 - el) < 0) return NULL; s2n(TLSEXT_TYPE_renegotiate,ret); s2n(el,ret); @@ -452,8 +453,7 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned cha #endif #ifndef OPENSSL_NO_EC - if (s->tlsext_ecpointformatlist != NULL && - s->version != DTLS1_VERSION) + if (s->tlsext_ecpointformatlist != NULL) { /* Add TLS extension ECPointFormats to the ClientHello message */ long lenmax; @@ -472,8 +472,7 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned cha memcpy(ret, s->tlsext_ecpointformatlist, s->tlsext_ecpointformatlist_length); ret+=s->tlsext_ecpointformatlist_length; } - if (s->tlsext_ellipticcurvelist != NULL && - s->version != DTLS1_VERSION) + if (s->tlsext_ellipticcurvelist != NULL) { /* Add TLS extension EllipticCurves to the ClientHello message */ long lenmax; @@ -650,7 +649,7 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned cha ssl_add_clienthello_use_srtp_ext(s, 0, &el, 0); - if((limit - p - 4 - el) < 0) return NULL; + if((limit - ret - 4 - el) < 0) return NULL; s2n(TLSEXT_TYPE_use_srtp,ret); s2n(el,ret); @@ -693,24 +692,25 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned cha } } - if ((extdatalen = ret-p-2)== 0) - return p; + if ((extdatalen = ret-orig-2)== 0) + return orig; - s2n(extdatalen,p); + s2n(extdatalen, orig); return ret; } -unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit) +unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit) { int extdatalen=0; - unsigned char *ret = p; + unsigned char *orig = buf; + unsigned char *ret = buf; #ifndef OPENSSL_NO_NEXTPROTONEG int next_proto_neg_seen; #endif /* don't add extensions for SSLv3, unless doing secure renegotiation */ if (s->version == SSL3_VERSION && !s->s3->send_connection_binding) - return p; + return orig; ret+=2; if (ret>=limit) return NULL; /* this really never occurs, but ... */ @@ -733,7 +733,7 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha return NULL; } - if((limit - p - 4 - el) < 0) return NULL; + if((limit - ret - 4 - el) < 0) return NULL; s2n(TLSEXT_TYPE_renegotiate,ret); s2n(el,ret); @@ -748,8 +748,7 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha } #ifndef OPENSSL_NO_EC - if (s->tlsext_ecpointformatlist != NULL && - s->version != DTLS1_VERSION) + if (s->tlsext_ecpointformatlist != NULL) { /* Add TLS extension ECPointFormats to the ServerHello message */ long lenmax; @@ -813,7 +812,7 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha ssl_add_serverhello_use_srtp_ext(s, 0, &el, 0); - if((limit - p - 4 - el) < 0) return NULL; + if((limit - ret - 4 - el) < 0) return NULL; s2n(TLSEXT_TYPE_use_srtp,ret); s2n(el,ret); @@ -884,10 +883,10 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha } #endif - if ((extdatalen = ret-p-2)== 0) - return p; + if ((extdatalen = ret-orig-2)== 0) + return orig; - s2n(extdatalen,p); + s2n(extdatalen, orig); return ret; } @@ -1152,8 +1151,7 @@ int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in #endif #ifndef OPENSSL_NO_EC - else if (type == TLSEXT_TYPE_ec_point_formats && - s->version != DTLS1_VERSION) + else if (type == TLSEXT_TYPE_ec_point_formats) { unsigned char *sdata = data; int ecpointformatlist_length = *(sdata++); @@ -1187,8 +1185,7 @@ int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in fprintf(stderr,"\n"); #endif } - else if (type == TLSEXT_TYPE_elliptic_curves && - s->version != DTLS1_VERSION) + else if (type == TLSEXT_TYPE_elliptic_curves) { unsigned char *sdata = data; int ellipticcurvelist_length = (*(sdata++) << 8); @@ -1547,8 +1544,7 @@ int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in } #ifndef OPENSSL_NO_EC - else if (type == TLSEXT_TYPE_ec_point_formats && - s->version != DTLS1_VERSION) + else if (type == TLSEXT_TYPE_ec_point_formats) { unsigned char *sdata = data; int ecpointformatlist_length = *(sdata++); @@ -1559,15 +1555,18 @@ int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in *al = TLS1_AD_DECODE_ERROR; return 0; } - s->session->tlsext_ecpointformatlist_length = 0; - if (s->session->tlsext_ecpointformatlist != NULL) OPENSSL_free(s->session->tlsext_ecpointformatlist); - if ((s->session->tlsext_ecpointformatlist = OPENSSL_malloc(ecpointformatlist_length)) == NULL) + if (!s->hit) { - *al = TLS1_AD_INTERNAL_ERROR; - return 0; + s->session->tlsext_ecpointformatlist_length = 0; + if (s->session->tlsext_ecpointformatlist != NULL) OPENSSL_free(s->session->tlsext_ecpointformatlist); + if ((s->session->tlsext_ecpointformatlist = OPENSSL_malloc(ecpointformatlist_length)) == NULL) + { + *al = TLS1_AD_INTERNAL_ERROR; + return 0; + } + s->session->tlsext_ecpointformatlist_length = ecpointformatlist_length; + memcpy(s->session->tlsext_ecpointformatlist, sdata, ecpointformatlist_length); } - s->session->tlsext_ecpointformatlist_length = ecpointformatlist_length; - memcpy(s->session->tlsext_ecpointformatlist, sdata, ecpointformatlist_length); #if 0 fprintf(stderr,"ssl_parse_serverhello_tlsext s->session->tlsext_ecpointformatlist "); sdata = s->session->tlsext_ecpointformatlist; @@ -2361,7 +2360,11 @@ static int tls_decrypt_ticket(SSL *s, const unsigned char *etick, int eticklen, } EVP_DecryptUpdate(&ctx, sdec, &slen, p, eticklen); if (EVP_DecryptFinal(&ctx, sdec + slen, &mlen) <= 0) + { + EVP_CIPHER_CTX_cleanup(&ctx); + OPENSSL_free(sdec); return 2; + } slen += mlen; EVP_CIPHER_CTX_cleanup(&ctx); p = sdec; |
