diff options
Diffstat (limited to 'openssl/ssl/s3_pkt.c')
| -rw-r--r-- | openssl/ssl/s3_pkt.c | 60 |
1 files changed, 54 insertions, 6 deletions
diff --git a/openssl/ssl/s3_pkt.c b/openssl/ssl/s3_pkt.c index f9b3629cf..3c56a8693 100644 --- a/openssl/ssl/s3_pkt.c +++ b/openssl/ssl/s3_pkt.c @@ -115,6 +115,7 @@ #include "ssl_locl.h" #include <openssl/evp.h> #include <openssl/buffer.h> +#include <openssl/rand.h> static int do_ssl3_write(SSL *s, int type, const unsigned char *buf, unsigned int len, int create_empty_fragment); @@ -630,6 +631,7 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf, unsigned char *p,*plen; int i,mac_size,clear=0; int prefix_len=0; + int eivlen; long align=0; SSL3_RECORD *wr; SSL3_BUFFER *wb=&(s->s3->wbuf); @@ -739,9 +741,27 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf, /* field where we are to write out packet length */ plen=p; p+=2; + /* Explicit IV length, block ciphers and TLS version 1.1 or later */ + if (s->enc_write_ctx && s->version >= TLS1_1_VERSION) + { + int mode = EVP_CIPHER_CTX_mode(s->enc_write_ctx); + if (mode == EVP_CIPH_CBC_MODE) + { + eivlen = EVP_CIPHER_CTX_iv_length(s->enc_write_ctx); + if (eivlen <= 1) + eivlen = 0; + } + /* Need explicit part of IV for GCM mode */ + else if (mode == EVP_CIPH_GCM_MODE) + eivlen = EVP_GCM_TLS_EXPLICIT_IV_LEN; + else + eivlen = 0; + } + else + eivlen = 0; /* lets setup the record stuff. */ - wr->data=p; + wr->data=p + eivlen; wr->length=(int)len; wr->input=(unsigned char *)buf; @@ -769,11 +789,19 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf, if (mac_size != 0) { - if (s->method->ssl3_enc->mac(s,&(p[wr->length]),1) < 0) + if (s->method->ssl3_enc->mac(s,&(p[wr->length + eivlen]),1) < 0) goto err; wr->length+=mac_size; - wr->input=p; - wr->data=p; + } + + wr->input=p; + wr->data=p; + + if (eivlen) + { + /* if (RAND_pseudo_bytes(p, eivlen) <= 0) + goto err; */ + wr->length += eivlen; } /* ssl3_enc can only have an error on read */ @@ -1042,6 +1070,19 @@ start: dest = s->s3->alert_fragment; dest_len = &s->s3->alert_fragment_len; } +#ifndef OPENSSL_NO_HEARTBEATS + else if (rr->type == TLS1_RT_HEARTBEAT) + { + tls1_process_heartbeat(s); + + /* Exit and notify application to read again */ + rr->length = 0; + s->rwstate=SSL_READING; + BIO_clear_retry_flags(SSL_get_rbio(s)); + BIO_set_retry_read(SSL_get_rbio(s)); + return(-1); + } +#endif if (dest_maxlen > 0) { @@ -1185,6 +1226,10 @@ start: SSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_NO_RENEGOTIATION); goto f_err; } +#ifdef SSL_AD_MISSING_SRP_USERNAME + if (alert_descr == SSL_AD_MISSING_SRP_USERNAME) + return(0); +#endif } else if (alert_level == 2) /* fatal */ { @@ -1263,6 +1308,7 @@ start: #else s->state = s->server ? SSL_ST_ACCEPT : SSL_ST_CONNECT; #endif + s->renegotiate=1; s->new_session=1; } i=s->handshake_func(s); @@ -1296,8 +1342,10 @@ start: { default: #ifndef OPENSSL_NO_TLS - /* TLS just ignores unknown message types */ - if (s->version == TLS1_VERSION) + /* TLS up to v1.1 just ignores unknown message types: + * TLS v1.2 give an unexpected message alert. + */ + if (s->version >= TLS1_VERSION && s->version <= TLS1_1_VERSION) { rr->length = 0; goto start; |