s3/s3_cbc.c: allow for compilations with NO_SHA256|512.

[openssl.git] / ssl / d1_lib.c

diff --git a/ssl/d1_lib.c b/ssl/d1_lib.c
index e205b5c6e54533cc07a112915e73ec424251185e..db180f2ce239b24d6e8dcc99443615682b22eaef 100644 (file)
--- a/ssl/d1_lib.c
+++ b/ssl/d1_lib.c
@@ -62,7 +62,7 @@
 #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
 
@@ -391,6 +391,7 @@ void dtls1_double_timeout(SSL *s)
 void dtls1_stop_timer(SSL *s)
        {
        /* Reset everything */
+       memset(&(s->d1->timeout), 0, sizeof(struct dtls1_timeout_st));
        memset(&(s->d1->next_timeout), 0, sizeof(struct timeval));
        s->d1->timeout_duration = 1;
        BIO_ctrl(SSL_get_rbio(s), BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT, 0, &(s->d1->next_timeout));
@@ -398,10 +399,28 @@ void dtls1_stop_timer(SSL *s)
        dtls1_clear_record_buffer(s);
        }
 
-int dtls1_handle_timeout(SSL *s)
+int dtls1_check_timeout_num(SSL *s)
        {
-       DTLS1_STATE *state;
+       s->d1->timeout.num_alerts++;
+
+       /* Reduce MTU after 2 unsuccessful retransmissions */
+       if (s->d1->timeout.num_alerts > 2)
+               {
+               s->d1->mtu = BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0, NULL);               
+               }
+
+       if (s->d1->timeout.num_alerts > DTLS1_TMO_ALERT_COUNT)
+               {
+               /* fail the connection, enough alerts have been sent */
+               SSLerr(SSL_F_DTLS1_CHECK_TIMEOUT_NUM,SSL_R_READ_TIMEOUT_EXPIRED);
+               return -1;
+               }
 
+       return 0;
+       }
+
+int dtls1_handle_timeout(SSL *s)
+       {
        /* if no timer is expired, don't do anything */
        if (!dtls1_is_timer_expired(s))
                {
@@ -409,19 +428,14 @@ int dtls1_handle_timeout(SSL *s)
                }
 
        dtls1_double_timeout(s);
-       state = s->d1;
-       state->timeout.num_alerts++;
-       if ( state->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);
+
+       if (dtls1_check_timeout_num(s) < 0)
                return -1;
-               }
 
-       state->timeout.read_timeouts++;
-       if ( state->timeout.read_timeouts > DTLS1_TMO_READ_COUNT)
+       s->d1->timeout.read_timeouts++;
+       if (s->d1->timeout.read_timeouts > DTLS1_TMO_READ_COUNT)
                {
-               state->timeout.read_timeouts = 1;
+               s->d1->timeout.read_timeouts = 1;
                }
 
 #ifndef OPENSSL_NO_HEARTBEATS
@@ -438,11 +452,15 @@ int dtls1_handle_timeout(SSL *s)
 
 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);
+       now.ul -= 116444736000000000UI64;       /* re-bias to 1/1/1970 */
+       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);