Add missing include of sys/time.h
[openssl.git] / crypto / bio / bss_dgram.c
index f8215f440dcca926c2453d9c110a51cfbbf4ebd6..d45dd954af5155945c4f9e4aea8faf8a26a5a62c 100644 (file)
@@ -66,6 +66,9 @@
 #include <openssl/bio.h>
 #ifndef OPENSSL_NO_DGRAM
 
+#if !(defined(_WIN32) || defined(OPENSSL_SYS_VMS))
+# include <sys/time.h>
+#endif
 #if defined(OPENSSL_SYS_VMS)
 #include <sys/timeb.h>
 #endif
@@ -458,6 +461,36 @@ static int dgram_write(BIO *b, const char *in, int inl)
        return(ret);
        }
 
+static long dgram_get_mtu_overhead(bio_dgram_data *data)
+       {
+       long ret;
+
+       switch (data->peer.sa.sa_family)
+               {
+               case AF_INET:
+                       /* Assume this is UDP - 20 bytes for IP, 8 bytes for UDP */
+                       ret = 28;
+                       break;
+#if OPENSSL_USE_IPV6
+               case AF_INET6:
+#ifdef IN6_IS_ADDR_V4MAPPED
+                       if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr))
+                               /* Assume this is UDP - 20 bytes for IP, 8 bytes for UDP */
+                               ret = 28;
+                       else
+#endif
+                               /* Assume this is UDP - 40 bytes for IP, 8 bytes for UDP */
+                               ret = 48;
+                       break;
+#endif
+               default:
+                       /* We don't know. Go with the historical default */
+                       ret = 28;
+                       break;
+               }
+       return ret;
+       }
+
 static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
        {
        long ret=1;
@@ -577,10 +610,10 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
                        ret = -1;
                        break;
                        }
-               ret = -1;
 #else
-               break;
+               ret = -1;
 #endif
+               break;
        case BIO_CTRL_DGRAM_QUERY_MTU:
 #if defined(OPENSSL_SYS_LINUX) && defined(IP_MTU)
                addr_len = (socklen_t)sizeof(addr);
@@ -634,23 +667,24 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
 #endif
                break;
        case BIO_CTRL_DGRAM_GET_FALLBACK_MTU:
+               ret = -dgram_get_mtu_overhead(data);
                switch (data->peer.sa.sa_family)
                        {
                        case AF_INET:
-                               ret = 576 - 20 - 8;
+                               ret += 576;
                                break;
 #if OPENSSL_USE_IPV6
                        case AF_INET6:
 #ifdef IN6_IS_ADDR_V4MAPPED
                                if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr))
-                                       ret = 576 - 20 - 8;
+                                       ret += 576;
                                else
 #endif
-                                       ret = 1280 - 40 - 8;
+                                       ret += 1280;
                                break;
 #endif
                        default:
-                               ret = 576 - 20 - 8;
+                               ret += 576;
                                break;
                        }
                break;
@@ -895,6 +929,9 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
                                break;
                        }
                break;
+       case BIO_CTRL_DGRAM_GET_MTU_OVERHEAD:
+               ret = dgram_get_mtu_overhead(data);
+               break;
        default:
                ret=0;
                break;
@@ -941,21 +978,35 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
        /* Activate SCTP-AUTH for DATA and FORWARD-TSN chunks */
        auth.sauth_chunk = OPENSSL_SCTP_DATA_CHUNK_TYPE;
        ret = setsockopt(fd, IPPROTO_SCTP, SCTP_AUTH_CHUNK, &auth, sizeof(struct sctp_authchunk));
-       OPENSSL_assert(ret >= 0);
+       if (ret < 0)
+               {
+               BIO_vfree(bio);
+               return(NULL);
+               }
        auth.sauth_chunk = OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE;
        ret = setsockopt(fd, IPPROTO_SCTP, SCTP_AUTH_CHUNK, &auth, sizeof(struct sctp_authchunk));
-       OPENSSL_assert(ret >= 0);
+       if (ret < 0)
+               {
+               BIO_vfree(bio);
+               return(NULL);
+               }
 
        /* Test if activation was successful. When using accept(),
         * SCTP-AUTH has to be activated for the listening socket
         * already, otherwise the connected socket won't use it. */
        sockopt_len = (socklen_t)(sizeof(sctp_assoc_t) + 256 * sizeof(uint8_t));
        authchunks = OPENSSL_malloc(sockopt_len);
-       memset(authchunks, 0, sizeof(sockopt_len));
+       memset(authchunks, 0, sockopt_len);
        ret = getsockopt(fd, IPPROTO_SCTP, SCTP_LOCAL_AUTH_CHUNKS, authchunks, &sockopt_len);
-       OPENSSL_assert(ret >= 0);
-       
-       for (p = (unsigned char*) authchunks + sizeof(sctp_assoc_t);
+
+       if (ret < 0)
+               {
+               OPENSSL_free(authchunks);
+               BIO_vfree(bio);
+               return(NULL);
+               }
+
+       for (p = (unsigned char*) authchunks->gauth_chunks;
             p < (unsigned char*) authchunks + sockopt_len;
             p += sizeof(uint8_t))
                {
@@ -975,16 +1026,28 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
        event.se_type = SCTP_AUTHENTICATION_EVENT;
        event.se_on = 1;
        ret = setsockopt(fd, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(struct sctp_event));
-       OPENSSL_assert(ret >= 0);
+       if (ret < 0)
+               {
+               BIO_vfree(bio);
+               return(NULL);
+               }
 #else
        sockopt_len = (socklen_t) sizeof(struct sctp_event_subscribe);
        ret = getsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, &sockopt_len);
-       OPENSSL_assert(ret >= 0);
+       if (ret < 0)
+               {
+               BIO_vfree(bio);
+               return(NULL);
+               }
 
        event.sctp_authentication_event = 1;
 
        ret = setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, sizeof(struct sctp_event_subscribe));
-       OPENSSL_assert(ret >= 0);
+       if (ret < 0)
+               {
+               BIO_vfree(bio);
+               return(NULL);
+               }
 #endif
 #endif
 
@@ -992,7 +1055,11 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
         * larger than the max record size of 2^14 + 2048 + 13
         */
        ret = setsockopt(fd, IPPROTO_SCTP, SCTP_PARTIAL_DELIVERY_POINT, &optval, sizeof(optval));
-       OPENSSL_assert(ret >= 0);
+       if (ret < 0)
+               {
+               BIO_vfree(bio);
+               return(NULL);
+               }
 
        return(bio);
        }
@@ -1082,6 +1149,13 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
                        msg.msg_flags = 0;
                        n = recvmsg(b->num, &msg, 0);
 
+                       if (n <= 0)
+                               {
+                               if (n < 0)
+                                       ret = n;
+                               break;
+                               }
+
                        if (msg.msg_controllen > 0)
                                {
                                for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
@@ -1121,13 +1195,6 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
                                        }
                                }
 
-                       if (n <= 0)
-                               {
-                               if (n < 0)
-                                       ret = n;
-                               break;
-                               }
-
                        if (msg.msg_flags & MSG_NOTIFICATION)
                                {
                                snp = (union sctp_notification*) out;
@@ -1157,16 +1224,28 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
                                        event.se_type = SCTP_SENDER_DRY_EVENT;
                                        event.se_on = 0;
                                        i = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(struct sctp_event));
-                                       OPENSSL_assert(i >= 0);
+                                       if (i < 0)
+                                               {
+                                               ret = i;
+                                               break;
+                                               }
 #else
                                        eventsize = sizeof(struct sctp_event_subscribe);
                                        i = getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, &eventsize);
-                                       OPENSSL_assert(i >= 0);
+                                       if (i < 0)
+                                               {
+                                               ret = i;
+                                               break;
+                                               }
 
                                        event.sctp_sender_dry_event = 0;
 
                                        i = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, sizeof(struct sctp_event_subscribe));
-                                       OPENSSL_assert(i >= 0);
+                                       if (i < 0)
+                                               {
+                                               ret = i;
+                                               break;
+                                               }
 #endif
                                        }
 
@@ -1199,8 +1278,8 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
                         */
                        optlen = (socklen_t) sizeof(int);
                        ret = getsockopt(b->num, SOL_SOCKET, SO_RCVBUF, &optval, &optlen);
-                       OPENSSL_assert(ret >= 0);
-                       OPENSSL_assert(optval >= 18445);
+                       if (ret >= 0)
+                               OPENSSL_assert(optval >= 18445);
 
                        /* Test if SCTP doesn't partially deliver below
                         * max record size (2^14 + 2048 + 13)
@@ -1208,8 +1287,8 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
                        optlen = (socklen_t) sizeof(int);
                        ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_PARTIAL_DELIVERY_POINT,
                                         &optval, &optlen);
-                       OPENSSL_assert(ret >= 0);
-                       OPENSSL_assert(optval >= 18445);
+                       if (ret >= 0)
+                               OPENSSL_assert(optval >= 18445);
 
                        /* Partially delivered notification??? Probably a bug.... */
                        OPENSSL_assert(!(msg.msg_flags & MSG_NOTIFICATION));
@@ -1241,17 +1320,17 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
 
                        optlen = (socklen_t)(sizeof(sctp_assoc_t) + 256 * sizeof(uint8_t));
                        authchunks = OPENSSL_malloc(optlen);
-                       memset(authchunks, 0, sizeof(optlen));
+                       memset(authchunks, 0, optlen);
                        ii = getsockopt(b->num, IPPROTO_SCTP, SCTP_PEER_AUTH_CHUNKS, authchunks, &optlen);
-                       OPENSSL_assert(ii >= 0);
 
-                       for (p = (unsigned char*) authchunks + sizeof(sctp_assoc_t);
-                                p < (unsigned char*) authchunks + optlen;
-                                p += sizeof(uint8_t))
-                               {
-                               if (*p == OPENSSL_SCTP_DATA_CHUNK_TYPE) auth_data = 1;
-                               if (*p == OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE) auth_forward = 1;
-                               }
+                       if (ii >= 0)
+                               for (p = (unsigned char*) authchunks->gauth_chunks;
+                                    p < (unsigned char*) authchunks + optlen;
+                                    p += sizeof(uint8_t))
+                                       {
+                                       if (*p == OPENSSL_SCTP_DATA_CHUNK_TYPE) auth_data = 1;
+                                       if (*p == OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE) auth_forward = 1;
+                                       }
 
                        OPENSSL_free(authchunks);
 
@@ -1381,7 +1460,7 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
        bio_dgram_sctp_data *data = NULL;
        socklen_t sockopt_len = 0;
        struct sctp_authkeyid authkeyid;
-       struct sctp_authkey *authkey;
+       struct sctp_authkey *authkey = NULL;
 
        data = (bio_dgram_sctp_data *)b->ptr;
 
@@ -1415,6 +1494,10 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
                 * Returns always 1.
                 */
                break;
+       case BIO_CTRL_DGRAM_GET_MTU_OVERHEAD:
+               /* We allow transport protocol fragmentation so this is irrelevant */
+               ret = 0;
+               break;
        case BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE:
                if (num > 0)
                        data->in_handshake = 1;
@@ -1436,6 +1519,11 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
                /* Add new key */
                sockopt_len = sizeof(struct sctp_authkey) + 64 * sizeof(uint8_t);
                authkey = OPENSSL_malloc(sockopt_len);
+               if (authkey == NULL)
+                       {
+                       ret = -1;
+                       break;
+                       }
                memset(authkey, 0x00, sockopt_len);
                authkey->sca_keynumber = authkeyid.scact_keynumber + 1;
 #ifndef __FreeBSD__
@@ -1447,6 +1535,8 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
                memcpy(&authkey->sca_key[0], ptr, 64 * sizeof(uint8_t));
 
                ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_KEY, authkey, sockopt_len);
+               OPENSSL_free(authkey);
+               authkey = NULL;
                if (ret < 0) break;
 
                /* Reset active key */
@@ -1901,7 +1991,11 @@ static void get_current_time(struct timeval *t)
 
        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)