diff options
Diffstat (limited to 'crypto/openssl/ssl/d1_lib.c')
| -rw-r--r-- | crypto/openssl/ssl/d1_lib.c | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/crypto/openssl/ssl/d1_lib.c b/crypto/openssl/ssl/d1_lib.c index 43d3d9ee4b29..14337b31a4e9 100644 --- a/crypto/openssl/ssl/d1_lib.c +++ b/crypto/openssl/ssl/d1_lib.c @@ -113,6 +113,9 @@ int dtls1_new(SSL *s) d1->cookie_len = sizeof(s->d1->cookie); } + d1->link_mtu = 0; + d1->mtu = 0; + if( ! d1->unprocessed_rcds.q || ! d1->processed_rcds.q || ! d1->buffered_messages || ! d1->sent_messages || ! d1->buffered_app_data.q) { @@ -161,24 +164,25 @@ static void dtls1_clear_queues(SSL *s) while( (item = pqueue_pop(s->d1->buffered_messages)) != NULL) { frag = (hm_fragment *)item->data; - OPENSSL_free(frag->fragment); - OPENSSL_free(frag); + dtls1_hm_fragment_free(frag); pitem_free(item); } while ( (item = pqueue_pop(s->d1->sent_messages)) != NULL) { frag = (hm_fragment *)item->data; - OPENSSL_free(frag->fragment); - OPENSSL_free(frag); + dtls1_hm_fragment_free(frag); pitem_free(item); } while ( (item = pqueue_pop(s->d1->buffered_app_data.q)) != NULL) { - frag = (hm_fragment *)item->data; - OPENSSL_free(frag->fragment); - OPENSSL_free(frag); + rdata = (DTLS1_RECORD_DATA *) item->data; + if (rdata->rbuf.buf) + { + OPENSSL_free(rdata->rbuf.buf); + } + OPENSSL_free(item->data); pitem_free(item); } } @@ -196,6 +200,7 @@ void dtls1_free(SSL *s) pqueue_free(s->d1->buffered_app_data.q); OPENSSL_free(s->d1); + s->d1 = NULL; } void dtls1_clear(SSL *s) @@ -206,6 +211,7 @@ void dtls1_clear(SSL *s) pqueue sent_messages; pqueue buffered_app_data; unsigned int mtu; + unsigned int link_mtu; if (s->d1) { @@ -215,6 +221,7 @@ void dtls1_clear(SSL *s) sent_messages = s->d1->sent_messages; buffered_app_data = s->d1->buffered_app_data.q; mtu = s->d1->mtu; + link_mtu = s->d1->link_mtu; dtls1_clear_queues(s); @@ -228,6 +235,7 @@ void dtls1_clear(SSL *s) if (SSL_get_options(s) & SSL_OP_NO_QUERY_MTU) { s->d1->mtu = mtu; + s->d1->link_mtu = link_mtu; } s->d1->unprocessed_rcds.q = unprocessed_rcds; @@ -272,7 +280,22 @@ long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg) /* Just one protocol version is supported so far; * fail closed if the version is not as expected. */ return s->version == DTLS_MAX_VERSION; - + case DTLS_CTRL_SET_LINK_MTU: + if (larg < (long)dtls1_link_min_mtu()) + return 0; + s->d1->link_mtu = larg; + return 1; + case DTLS_CTRL_GET_LINK_MIN_MTU: + return (long)dtls1_link_min_mtu(); + case SSL_CTRL_SET_MTU: + /* + * We may not have a BIO set yet so can't call dtls1_min_mtu() + * We'll have to make do with dtls1_link_min_mtu() and max overhead + */ + if (larg < (long)dtls1_link_min_mtu() - DTLS1_MAX_MTU_OVERHEAD) + return 0; + s->d1->mtu = larg; + return larg; default: ret = ssl3_ctrl(s, cmd, larg, parg); break; @@ -411,12 +434,17 @@ void dtls1_stop_timer(SSL *s) int dtls1_check_timeout_num(SSL *s) { + unsigned int mtu; + s->d1->timeout.num_alerts++; /* Reduce MTU after 2 unsuccessful retransmissions */ - if (s->d1->timeout.num_alerts > 2) + if (s->d1->timeout.num_alerts > 2 + && !(SSL_get_options(s) & SSL_OP_NO_QUERY_MTU)) { - s->d1->mtu = BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0, NULL); + mtu = BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0, NULL); + if(mtu < s->d1->mtu) + s->d1->mtu = mtu; } if (s->d1->timeout.num_alerts > DTLS1_TMO_ALERT_COUNT) |