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path: root/crypto/openssl/crypto/bio/bss_dgram.c
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Diffstat (limited to 'crypto/openssl/crypto/bio/bss_dgram.c')
-rw-r--r--crypto/openssl/crypto/bio/bss_dgram.c159
1 files changed, 123 insertions, 36 deletions
diff --git a/crypto/openssl/crypto/bio/bss_dgram.c b/crypto/openssl/crypto/bio/bss_dgram.c
index 9d9e9a51d100..0decf9449b3d 100644
--- a/crypto/openssl/crypto/bio/bss_dgram.c
+++ b/crypto/openssl/crypto/bio/bss_dgram.c
@@ -454,6 +454,36 @@ 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;
@@ -630,23 +660,24 @@ 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;
@@ -847,6 +878,9 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
ret = 0;
break;
#endif
+ case BIO_CTRL_DGRAM_GET_MTU_OVERHEAD:
+ ret = dgram_get_mtu_overhead(data);
+ break;
default:
ret=0;
break;
@@ -893,10 +927,18 @@ 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
@@ -905,9 +947,15 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag)
authchunks = OPENSSL_malloc(sockopt_len);
memset(authchunks, 0, sizeof(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))
{
@@ -927,16 +975,28 @@ 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
@@ -944,7 +1004,11 @@ 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);
}
@@ -1039,6 +1103,13 @@ 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))
@@ -1078,13 +1149,6 @@ 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;
@@ -1115,16 +1179,28 @@ 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
}
@@ -1157,8 +1233,8 @@ 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)
@@ -1166,8 +1242,8 @@ 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));
@@ -1201,15 +1277,15 @@ static int dgram_sctp_read(BIO *b, char *out, int outl)
authchunks = OPENSSL_malloc(optlen);
memset(authchunks, 0, sizeof(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);
@@ -1341,7 +1417,7 @@ 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;
@@ -1375,6 +1451,10 @@ 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;
@@ -1396,6 +1476,11 @@ 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__
@@ -1407,6 +1492,8 @@ 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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-17 18:54:03 +0000