#include <openssl/objects.h>
#include "ssl_locl.h"
-#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS)
+#if defined(OPENSSL_SYS_VMS)
#include <sys/timeb.h>
#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)
DTLS1_STATE *d1;
if (!ssl3_new(s)) return(0);
- if ((d1=OPENSSL_malloc(sizeof *d1)) == NULL) return (0);
+ if ((d1=OPENSSL_malloc(sizeof *d1)) == NULL)
+ {
+ ssl3_free(s);
+ return (0);
+ }
memset(d1,0, sizeof *d1);
/* d1->handshake_epoch=0; */
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)
{
- if ( d1->unprocessed_rcds.q) pqueue_free(d1->unprocessed_rcds.q);
- if ( d1->processed_rcds.q) pqueue_free(d1->processed_rcds.q);
- if ( d1->buffered_messages) pqueue_free(d1->buffered_messages);
+ if ( d1->unprocessed_rcds.q) pqueue_free(d1->unprocessed_rcds.q);
+ if ( d1->processed_rcds.q) pqueue_free(d1->processed_rcds.q);
+ if ( d1->buffered_messages) pqueue_free(d1->buffered_messages);
if ( d1->sent_messages) pqueue_free(d1->sent_messages);
if ( d1->buffered_app_data.q) pqueue_free(d1->buffered_app_data.q);
OPENSSL_free(d1);
+ ssl3_free(s);
return (0);
}
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. */
+ 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)
{
/* fail the connection, enough alerts have been sent */
- SSLerr(SSL_F_DTLS1_HANDLE_TIMEOUT,SSL_R_READ_TIMEOUT_EXPIRED);
+ SSLerr(SSL_F_DTLS1_CHECK_TIMEOUT_NUM,SSL_R_READ_TIMEOUT_EXPIRED);
return -1;
}
static void get_current_time(struct timeval *t)
{
-#ifdef OPENSSL_SYS_WIN32
- struct _timeb tb;
- _ftime(&tb);
- t->tv_sec = (long)tb.time;
- t->tv_usec = (long)tb.millitm * 1000;
+#if defined(_WIN32)
+ SYSTEMTIME st;
+ union { unsigned __int64 ul; FILETIME ft; } now;
+
+ 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)
struct timeb tb;
ftime(&tb);
(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