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libpcap
libpcap-8021ad-tpid.patch
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File libpcap-8021ad-tpid.patch of Package libpcap
From: Michal Kubecek <mkubecek@suse.cz> Date: Wed, 19 Aug 2015 15:08:06 +0200 Subject: Recognize 802.1ad nested VLAN tag in vlan filter. Patch-mainline: libpcap-1.7.2 Git-commit: cb21bc35f7cac6bc9e833510e48e9533cc4d0845 References: bsc#874131 In addition to ETHERTYPE_8021Q (0x8100) and ETHERTYPE_8021QINQ (0x9100), recognize also ETHERTYPE_8021AD (0x88a8) as a VLAN tag. This is defined as S-Tag (Service tag) by 802.1ad. --- ethertype.h | 3 +++ gencode.c | 4 ++++ 2 files changed, 7 insertions(+) diff --git a/ethertype.h b/ethertype.h index 2d6bbebddd5a..90d5c42cdd15 100644 --- a/ethertype.h +++ b/ethertype.h @@ -114,6 +114,9 @@ #ifndef ETHERTYPE_PPPOES #define ETHERTYPE_PPPOES 0x8864 #endif +#ifndef ETHERTYPE_8021AD +#define ETHERTYPE_8021AD 0x88a8 +#endif #ifndef ETHERTYPE_LOOPBACK #define ETHERTYPE_LOOPBACK 0x9000 #endif diff --git a/gencode.c b/gencode.c index 7bb07fb1130d..593966333aa0 100644 --- a/gencode.c +++ b/gencode.c @@ -7909,6 +7909,10 @@ gen_vlan(vlan_num) b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, (bpf_int32)ETHERTYPE_8021Q); b1 = gen_cmp(OR_LINK, off_linktype, BPF_H, + (bpf_int32)ETHERTYPE_8021AD); + gen_or(b0,b1); + b0 = b1; + b1 = gen_cmp(OR_LINK, off_linktype, BPF_H, (bpf_int32)ETHERTYPE_8021QINQ); gen_or(b0,b1); b0 = b1; -- 2.5.0
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