diff options
author | Dave Wallace <dwallacelf@gmail.com> | 2017-12-14 21:36:31 -0500 |
---|---|---|
committer | Damjan Marion <dmarion.lists@gmail.com> | 2017-12-15 10:11:15 +0000 |
commit | 9c5161aedff8e271cc036faeab58b665a3c8105e (patch) | |
tree | ee17e5e00c9a6ba72318f8f1ec186df2ac10e789 /src | |
parent | 6390df300e6795e557f824e55b138837dabcf74b (diff) |
VCL-LDPRELOAD: Fix Coverity Warning CID 178776
- Fix broken unit test code.
- Check for NULL ptr in vppcom_session_attr()
VPPCOM_ATTR_GET_*_ADDR endpoint parameters.
Change-Id: I01169edce098ee855a9cba08893c2b08c93ea6c3
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Diffstat (limited to 'src')
-rw-r--r-- | src/vcl/sock_test_server.c | 45 | ||||
-rw-r--r-- | src/vcl/vcom_socket.c | 117 | ||||
-rw-r--r-- | src/vcl/vppcom.c | 4 |
3 files changed, 68 insertions, 98 deletions
diff --git a/src/vcl/sock_test_server.c b/src/vcl/sock_test_server.c index 23fd46df012..b30dcf949b2 100644 --- a/src/vcl/sock_test_server.c +++ b/src/vcl/sock_test_server.c @@ -450,15 +450,6 @@ main (int argc, char **argv) if (vppcom_session_attr (ssm->listen_fd, VPPCOM_ATTR_GET_FLAGS, buffer, &buflen) != VPPCOM_OK) printf ("\nGET_FLAGS2:Oh no, Mr. Biiiiiiiiiiiilllllll ! ! ! !\n"); - - buflen = BUFLEN; - if (vppcom_session_attr (ssm->listen_fd, VPPCOM_ATTR_GET_PEER_ADDR, - buffer, &buflen) != VPPCOM_OK) - printf ("\nGET_PEER_ADDR: Oh no, Mr. Biiiiiiiiiiiilllllll ! ! ! !\n"); - buflen = BUFLEN; - if (vppcom_session_attr (ssm->listen_fd, VPPCOM_ATTR_GET_LCL_ADDR, - buffer, &buflen) != VPPCOM_OK) - printf ("\nGET_LCL_ADDR: Oh no, Mr. Biiiiiiiiiiiilllllll ! ! ! !\n"); #endif #else rv = @@ -612,20 +603,28 @@ main (int argc, char **argv) { #ifdef VCL_TEST #if VPPCOM_SESSION_ATTR_UNIT_TEST - buflen = BUFLEN; - if (vppcom_session_attr (client_fd, VPPCOM_ATTR_GET_NREAD, - buffer, &buflen) < VPPCOM_OK) - printf ("\nNREAD: Oh no, Mr. Biiiiiiiiiiiilllllll ! ! ! !\n"); - if (vppcom_session_attr (client_fd, - VPPCOM_ATTR_GET_PEER_ADDR, - buffer, &buflen) != VPPCOM_OK) - printf ("\nGET_PEER_ADDR: Oh no, Mr. " - "Biiiiiiiiiiiilllllll ! ! ! !\n"); - buflen = BUFLEN; - if (vppcom_session_attr (client_fd, VPPCOM_ATTR_GET_LCL_ADDR, - buffer, &buflen) != VPPCOM_OK) - printf ("\nGET_LCL_ADDR: Oh no, Mr. " - "Biiiiiiiiiiiilllllll ! ! ! !\n"); + { + vppcom_endpt_t ep; + uint8_t addr[16]; + + ep.ip = addr; + buflen = BUFLEN; + if (vppcom_session_attr (client_fd, VPPCOM_ATTR_GET_NREAD, + buffer, &buflen) < VPPCOM_OK) + printf ("\nNREAD: Oh no, Mr. " + "Biiiiiiiiiiiilllllll ! ! ! !\n"); + buflen = sizeof (ep); + if (vppcom_session_attr (client_fd, + VPPCOM_ATTR_GET_PEER_ADDR, + &ep, &buflen) != VPPCOM_OK) + printf ("\nGET_PEER_ADDR: Oh no, Mr. " + "Biiiiiiiiiiiilllllll ! ! ! !\n"); + buflen = sizeof (ep); + if (vppcom_session_attr (client_fd, VPPCOM_ATTR_GET_LCL_ADDR, + &ep, &buflen) != VPPCOM_OK) + printf ("\nGET_LCL_ADDR: Oh no, Mr. " + "Biiiiiiiiiiiilllllll ! ! ! !\n"); + } #endif #endif rx_bytes = sock_test_read (client_fd, conn->buf, diff --git a/src/vcl/vcom_socket.c b/src/vcl/vcom_socket.c index 81a4b76919d..13e008cc6c0 100644 --- a/src/vcl/vcom_socket.c +++ b/src/vcl/vcom_socket.c @@ -1298,12 +1298,43 @@ vcom_socket_bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len) } static inline int -vcom_session_getsockname (int sid, vppcom_endpt_t * ep) +vcom_socket_copy_ep_to_sockaddr (__SOCKADDR_ARG __addr, + socklen_t * __restrict __len, + vppcom_endpt_t * ep) { - int rv; - uint32_t size = sizeof (*ep); + int rv = 0; + int sa_len, copy_len; + + __addr->sa_family = (ep->is_ip4 == VPPCOM_IS_IP4) ? AF_INET : AF_INET6; + switch (__addr->sa_family) + { + case AF_INET: + ((struct sockaddr_in *) __addr)->sin_port = ep->port; + if (*__len > sizeof (struct sockaddr_in)) + *__len = sizeof (struct sockaddr_in); + sa_len = sizeof (struct sockaddr_in) - sizeof (struct in_addr); + copy_len = *__len - sa_len; + if (copy_len > 0) + memcpy (&((struct sockaddr_in *) __addr)->sin_addr, ep->ip, copy_len); + break; + + case AF_INET6: + ((struct sockaddr_in6 *) __addr)->sin6_port = ep->port; + if (*__len > sizeof (struct sockaddr_in6)) + *__len = sizeof (struct sockaddr_in6); + sa_len = sizeof (struct sockaddr_in6) - sizeof (struct in6_addr); + copy_len = *__len - sa_len; + if (copy_len > 0) + memcpy (((struct sockaddr_in6 *) __addr)->sin6_addr. + __in6_u.__u6_addr8, ep->ip, copy_len); + break; + + default: + /* Not possible */ + rv = -EAFNOSUPPORT; + break; + } - rv = vppcom_session_attr (sid, VPPCOM_ATTR_GET_LCL_ADDR, ep, &size); return rv; } @@ -1315,7 +1346,12 @@ vcom_socket_getsockname (int __fd, __SOCKADDR_ARG __addr, vcom_socket_main_t *vsm = &vcom_socket_main; uword *p; vcom_socket_t *vsock; + vppcom_endpt_t ep; + u8 addr_buf[sizeof (struct in6_addr)]; + uint32_t size = sizeof (ep); + if (!__addr || !__len) + return -EFAULT; p = hash_get (vsm->sockidx_by_fd, __fd); if (!p) @@ -1328,34 +1364,10 @@ vcom_socket_getsockname (int __fd, __SOCKADDR_ARG __addr, if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND) return -EINVAL; - if (!__addr || !__len) - return -EFAULT; - - vppcom_endpt_t ep; - ep.ip = (u8 *) & ((const struct sockaddr_in *) __addr)->sin_addr; - rv = vcom_session_getsockname (vsock->sid, &ep); - if (rv == 0) - { - if (ep.vrf == VPPCOM_VRF_DEFAULT) - { - __addr->sa_family = ep.is_ip4 == VPPCOM_IS_IP4 ? AF_INET : AF_INET6; - switch (__addr->sa_family) - { - case AF_INET: - ((struct sockaddr_in *) __addr)->sin_port = ep.port; - *__len = sizeof (struct sockaddr_in); - break; - - case AF_INET6: - ((struct sockaddr_in6 *) __addr)->sin6_port = ep.port; - *__len = sizeof (struct sockaddr_in6); - break; - - default: - break; - } - } - } + ep.ip = addr_buf; + rv = vppcom_session_attr (vsock->sid, VPPCOM_ATTR_GET_LCL_ADDR, &ep, &size); + if (rv == VPPCOM_OK) + rv = vcom_socket_copy_ep_to_sockaddr (__addr, __len, &ep); return rv; } @@ -1414,47 +1426,6 @@ vcom_session_getpeername (int sid, vppcom_endpt_t * ep) return rv; } -static inline int -vcom_socket_copy_ep_to_sockaddr (__SOCKADDR_ARG __addr, - socklen_t * __restrict __len, - vppcom_endpt_t * ep) -{ - int rv = 0; - int sa_len, copy_len; - - __addr->sa_family = (ep->is_ip4 == VPPCOM_IS_IP4) ? AF_INET : AF_INET6; - switch (__addr->sa_family) - { - case AF_INET: - ((struct sockaddr_in *) __addr)->sin_port = ep->port; - if (*__len > sizeof (struct sockaddr_in)) - *__len = sizeof (struct sockaddr_in); - sa_len = sizeof (struct sockaddr_in) - sizeof (struct in_addr); - copy_len = *__len - sa_len; - if (copy_len > 0) - memcpy (&((struct sockaddr_in *) __addr)->sin_addr, ep->ip, copy_len); - break; - - case AF_INET6: - ((struct sockaddr_in6 *) __addr)->sin6_port = ep->port; - if (*__len > sizeof (struct sockaddr_in6)) - *__len = sizeof (struct sockaddr_in6); - sa_len = sizeof (struct sockaddr_in6) - sizeof (struct in6_addr); - copy_len = *__len - sa_len; - if (copy_len > 0) - memcpy (((struct sockaddr_in6 *) __addr)->sin6_addr. - __in6_u.__u6_addr8, ep->ip, copy_len); - break; - - default: - /* Not possible */ - rv = -EAFNOSUPPORT; - break; - } - - return rv; -} - int vcom_socket_getpeername (int __fd, __SOCKADDR_ARG __addr, socklen_t * __restrict __len) diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index ce222a77234..2e3af1b3526 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -3797,7 +3797,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, break; case VPPCOM_ATTR_GET_PEER_ADDR: - if (buffer && buflen && (*buflen >= sizeof (*ep))) + if (buffer && buflen && (*buflen >= sizeof (*ep)) && ep->ip) { ep->vrf = session->vrf; ep->is_ip4 = session->peer_addr.is_ip4; @@ -3821,7 +3821,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, break; case VPPCOM_ATTR_GET_LCL_ADDR: - if (buffer && buflen && (*buflen >= sizeof (*ep))) + if (buffer && buflen && (*buflen >= sizeof (*ep)) && ep->ip) { ep->vrf = session->vrf; ep->is_ip4 = session->lcl_addr.is_ip4; |