diff options
| author |   Chaoyu Jin <chjin@cisco.com> | 2018-03-13 07:37:41 -0700 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2018-03-14 07:49:39 +0000 |
| commit | afb193019192a296e96c1008fdb788f70f5150d6 (patch) | |
| tree | e2bd7ed650feb7f4496694164629f4f1f6777847 | |
| parent | 49c13c71939fafa2d7d113a6a6d2062df5825a89 (diff) | |
At AF_PACKET socket create, do intf bind before rx ring cfg to avoid receiving pkts from other interfaces
Change-Id: Ie40ee9129edaac717e716b469f4d10f3c29a4932
Signed-off-by: Chaoyu Jin <chjin@cisco.com>
| -rw-r--r-- | src/vnet/devices/af_packet/af_packet.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/vnet/devices/af_packet/af_packet.c b/src/vnet/devices/af_packet/af_packet.c index 2a135105721..e286ae9a980 100644 --- a/src/vnet/devices/af_packet/af_packet.c +++ b/src/vnet/devices/af_packet/af_packet.c @@ -144,6 +144,18 @@ create_packet_v2_sock (int host_if_index, tpacket_req_t * rx_req, goto error; } + /* bind before rx ring is cfged so we don't receive packets from other interfaces */ + memset (&sll, 0, sizeof (sll)); + sll.sll_family = PF_PACKET; + sll.sll_protocol = htons (ETH_P_ALL); + sll.sll_ifindex = host_if_index; + if ((err = bind (*fd, (struct sockaddr *) &sll, sizeof (sll))) < 0) + { + DBG_SOCK ("Failed to bind rx packet socket (error %d)", err); + ret = VNET_API_ERROR_SYSCALL_ERROR_1; + goto error; + } + if ((err = setsockopt (*fd, SOL_PACKET, PACKET_VERSION, &ver, sizeof (ver))) < 0) { @@ -187,18 +199,6 @@ create_packet_v2_sock (int host_if_index, tpacket_req_t * rx_req, goto error; } - memset (&sll, 0, sizeof (sll)); - sll.sll_family = PF_PACKET; - sll.sll_protocol = htons (ETH_P_ALL); - sll.sll_ifindex = host_if_index; - - if ((err = bind (*fd, (struct sockaddr *) &sll, sizeof (sll))) < 0) - { - DBG_SOCK ("Failed to bind rx packet socket (error %d)", err); - ret = VNET_API_ERROR_SYSCALL_ERROR_1; - goto error; - } - return 0; error: if (*fd >= 0) |