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| author | Thomas Markwalder <tmark@isc.org> | 2015-09-23 09:58:53 -0400 |
|---|---|---|
| committer | Thomas Markwalder <tmark@isc.org> | 2015-09-23 09:58:53 -0400 |
| commit | 3faf80d291c4a6cba760fe3adc3c58361a74e70e (patch) | |
| tree | 56a494967e7447033c0967652a43aa9501eaf8c5 /common | |
| parent | 3d6679788acd73a7c7547391820bcc7b5e1364e5 (diff) | |
| download | isc-dhcp-3faf80d291c4a6cba760fe3adc3c58361a74e70e.tar.gz | |
[v4_1_esv] LPF now only uses 12-bit value from VLAN TCI for VID
Merges in rt40591.
Diffstat (limited to 'common')
| -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 211bffe9..9234c518 100644 --- a/common/lpf.c +++ b/common/lpf.c @@ -400,10 +400,10 @@ 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 |