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| author | Thomas Markwalder <tmark@isc.org> | 2015-09-23 09:37:51 -0400 |
|---|---|---|
| committer | Thomas Markwalder <tmark@isc.org> | 2015-09-23 09:37:51 -0400 |
| commit | f10cbbface262ba51394b2c8ccf402addf7bd6b1 (patch) | |
| tree | 8997b9ba538c0c70a10518af292c3d6f6b99f3bd /common/lpf.c | |
| parent | 7a6187a84d132e3e221e52e13072420447af6492 (diff) | |
| download | isc-dhcp-f10cbbface262ba51394b2c8ccf402addf7bd6b1.tar.gz | |
[master] LPF now only uses 12-bit value from VLAN TCI for VID
Merges in rt40591.
Diffstat (limited to 'common/lpf.c')
| -rw-r--r-- | common/lpf.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/common/lpf.c b/common/lpf.c index 7889b6bb..ee3820b6 100644 --- a/common/lpf.c +++ b/common/lpf.c @@ -422,10 +422,10 @@ ssize_t receive_packet (interface, buf, len, from, hfrom) if (cmsg->cmsg_level == SOL_PACKET && cmsg->cmsg_type == PACKET_AUXDATA) { struct tpacket_auxdata *aux = (void *)CMSG_DATA(cmsg); - /* Discard packets with stripped vlan id */ - #ifdef VLAN_TCI_PRESENT - if (aux->tp_vlan_tci != 0) + /* Discard packets with stripped vlan id */ + /* VLAN ID is only bottom 12-bits of TCI */ + if (aux->tp_vlan_tci & 0x0fff) return 0; #endif |