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netfilter: nfnetlink_queue: avoid expensive gso segmentation and checksum fixup

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Userspace can now indicate that it can cope with larger-than-mtu sized
packets and packets that have invalid ipv4/tcp checksums.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2013-04-19 04:58:27 +00:00 • committed by Pablo Neira Ayuso
commit 00bd1cc24a
2 changed files with 5 additions and 3 deletions
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3
include/uapi/linux/netfilter/nfnetlink_queue.h
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@ -97,7 +97,8 @@ enum nfqnl_attr_config {
/* Flags for NFQA_CFG_FLAGS */
#define NFQA_CFG_F_FAIL_OPEN (1 << 0)
#define NFQA_CFG_F_CONNTRACK (1 << 1)
#define NFQA_CFG_F_MAX (1 << 2)
#define NFQA_CFG_F_GSO (1 << 2)
#define NFQA_CFG_F_MAX (1 << 3)
/* flags for NFQA_SKB_INFO */
/* packet appears to have wrong checksums, but they are ok */