#endif
static void get_current_time(struct timeval *t);
+static void dtls1_set_handshake_header(SSL *s, int type, unsigned long len);
+static int dtls1_handshake_write(SSL *s);
const char dtls1_version_str[]="DTLSv1" OPENSSL_VERSION_PTEXT;
int dtls1_listen(SSL *s, struct sockaddr *client);
-SSL3_ENC_METHOD DTLSv1_enc_data={
- dtls1_enc,
+const SSL3_ENC_METHOD DTLSv1_enc_data={
+ tls1_enc,
tls1_mac,
tls1_setup_key_block,
tls1_generate_master_secret,
TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
tls1_alert_code,
tls1_export_keying_material,
+ SSL_ENC_FLAG_DTLS|SSL_ENC_FLAG_EXPLICIT_IV,
+ DTLS1_HM_HEADER_LENGTH,
+ dtls1_set_handshake_header,
+ dtls1_handshake_write
+ };
+
+const SSL3_ENC_METHOD DTLSv1_2_enc_data={
+ tls1_enc,
+ tls1_mac,
+ tls1_setup_key_block,
+ tls1_generate_master_secret,
+ tls1_change_cipher_state,
+ tls1_final_finish_mac,
+ TLS1_FINISH_MAC_LENGTH,
+ tls1_cert_verify_mac,
+ TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
+ TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
+ tls1_alert_code,
+ tls1_export_keying_material,
+ SSL_ENC_FLAG_DTLS|SSL_ENC_FLAG_EXPLICIT_IV|SSL_ENC_FLAG_SIGALGS
+ |SSL_ENC_FLAG_SHA256_PRF|SSL_ENC_FLAG_TLS1_2_CIPHERS,
+ DTLS1_HM_HEADER_LENGTH,
+ dtls1_set_handshake_header,
+ dtls1_handshake_write
};
long dtls1_default_timeout(void)
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)
{
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);
}
}
pqueue_free(s->d1->buffered_app_data.q);
OPENSSL_free(s->d1);
+ s->d1 = NULL;
}
void dtls1_clear(SSL *s)
pqueue sent_messages;
pqueue buffered_app_data;
unsigned int mtu;
+ unsigned int link_mtu;
if (s->d1)
{
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);
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;
ssl3_clear(s);
if (s->options & SSL_OP_CISCO_ANYCONNECT)
s->version=DTLS1_BAD_VER;
+ else if (s->method->version == DTLS_ANY_VERSION)
+ s->version=DTLS1_2_VERSION;
else
- s->version=DTLS1_VERSION;
+ s->version=s->method->version;
}
long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg)
case DTLS_CTRL_LISTEN:
ret = dtls1_listen(s, parg);
break;
-
+ case SSL_CTRL_CHECK_PROTO_VERSION:
+ /* For library-internal use; checks that the current protocol
+ * is the highest enabled version (according to s->ctx->method,
+ * as version negotiation may have changed s->method). */
+ if (s->version == s->ctx->method->version)
+ return 1;
+ /* Apparently we're using a version-flexible SSL_METHOD
+ * (not at its highest protocol version). */
+ if (s->ctx->method->version == DTLS_method()->version)
+ {
+#if DTLS_MAX_VERSION != DTLS1_2_VERSION
+# error Code needs update for DTLS_method() support beyond DTLS1_2_VERSION.
+#endif
+ if (!(s->options & SSL_OP_NO_DTLSv1_2))
+ return s->version == DTLS1_2_VERSION;
+ if (!(s->options & SSL_OP_NO_DTLSv1))
+ return s->version == DTLS1_VERSION;
+ }
+ return 0; /* Unexpected state; fail closed. */
+
+ /* 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;
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)
GetSystemTime(&st);
SystemTimeToFileTime(&st,&now.ft);
+#ifdef __MINGW32__
+ now.ul -= 116444736000000000ULL;
+#else
now.ul -= 116444736000000000UI64; /* re-bias to 1/1/1970 */
+#endif
t->tv_sec = (long)(now.ul/10000000);
t->tv_usec = ((int)(now.ul%10000000))/10;
#elif defined(OPENSSL_SYS_VMS)
(void) BIO_dgram_get_peer(SSL_get_rbio(s), client);
return 1;
}
+
+static void dtls1_set_handshake_header(SSL *s, int htype, unsigned long len)
+ {
+ unsigned char *p = (unsigned char *)s->init_buf->data;
+ dtls1_set_message_header(s, p, htype, len, 0, len);
+ s->init_num = (int)len + DTLS1_HM_HEADER_LENGTH;
+ s->init_off = 0;
+ /* Buffer the message to handle re-xmits */
+ dtls1_buffer_message(s, 0);
+ }
+
+static int dtls1_handshake_write(SSL *s)
+ {
+ return dtls1_do_write(s, SSL3_RT_HANDSHAKE);
+ }
projects / openssl.git / blobdiff