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568af6de05
linux/include/net/netfilter
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Pablo Neira Ayuso 568af6de05 netfilter: nf_tables: set pktinfo->thoff at AH header if found 
Phil Sutter reports that IPv6 AH header matching is broken. From
userspace, nft generates bytecode that expects to find the AH header at
NFT_PAYLOAD_TRANSPORT_HEADER both for IPv4 and IPv6. However,
pktinfo->thoff is set to the inner header after the AH header in IPv6,
while in IPv4 pktinfo->thoff points to the AH header indeed. This
behaviour is inconsistent. This patch fixes this problem by updating
ipv6_find_hdr() to get the IP6_FH_F_AUTH flag so this function stops at
the AH header, so both IPv4 and IPv6 pktinfo->thoff point to the AH
header.

This is also inconsistent when trying to match encapsulated headers:

1) A packet that looks like IPv4 + AH + TCP dport 22 will *not* match.
2) A packet that looks like IPv6 + AH + TCP dport 22 will match.

Reported-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-08 18:35:27 +01:00
..
ipv4 netfilter: merge udp and udplite conntrack helpers 2017-01-03 14:33:25 +01:00
ipv6 netfilter: merge udp and udplite conntrack helpers 2017-01-03 14:33:25 +01:00
br_netfilter.h netfilter: bridge: add and use br_nf_hook_thresh 2016-09-24 21:25:48 +02:00
nf_conntrack_acct.h
nf_conntrack_core.h skbuff: add and use skb_nfct helper 2017-02-02 14:31:53 +01:00
nf_conntrack_ecache.h netfilter: don't rely on DYING bit to detect when destroy event was sent 2016-08-30 11:43:08 +02:00
nf_conntrack_expect.h netfilter: conntrack: use a single expectation table for all namespaces 2016-05-06 11:50:01 +02:00
nf_conntrack_extend.h netfilter: move nat hlist_head to nf_conn 2016-07-11 11:47:50 +02:00
nf_conntrack_helper.h netfilter: Add helper array register/unregister functions 2016-07-21 02:31:53 +02:00
nf_conntrack_l3proto.h netfilter: conntrack: add nf_conntrack_default_on sysctl 2016-12-04 21:17:25 +01:00
nf_conntrack_l4proto.h netfilter: conntrack: no need to pass ctinfo to error handler 2017-02-02 14:31:51 +01:00
nf_conntrack_labels.h netfilter: conntrack: avoid excess memory allocation 2016-10-27 18:29:02 +02:00
nf_conntrack_seqadj.h
nf_conntrack_synproxy.h netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nf_conntrack_timeout.h netfilter: cttimeout: add netns support 2015-12-14 12:48:58 +01:00
nf_conntrack_timestamp.h
nf_conntrack_tuple.h
nf_conntrack_zones.h netfilter: move zone info into struct nf_conn 2016-06-23 13:33:12 +02:00
nf_conntrack.h netfilter: merge ctinfo into nfct pointer storage area 2017-02-02 14:31:56 +01:00
nf_dup_netdev.h netfilter: add and use nf_fwd_netdev_egress 2016-12-06 21:48:22 +01:00
nf_log.h netfilter: allow logging from non-init namespaces 2017-02-02 14:31:58 +01:00
nf_nat_core.h netfilter: Pass net into nf_xfrm_me_harder 2015-09-18 22:00:22 +02:00
nf_nat_helper.h
nf_nat_l3proto.h netfilter: Pass priv instead of nf_hook_ops to netfilter hooks 2015-09-18 22:00:16 +02:00
nf_nat_l4proto.h netfilter: built-in NAT support for UDPlite 2016-12-04 20:45:32 +01:00
nf_nat_redirect.h netfilter: combine IPv4 and IPv6 nf_nat_redirect code in one module 2014-11-27 13:08:42 +01:00
nf_nat.h netfilter: nat: convert nat bysrc hash to rhashtable 2016-07-11 12:07:57 +02:00
nf_queue.h netfilter: remove hook_entries field from nf_hook_state 2016-11-03 11:52:58 +01:00
nf_socket.h netfilter: move socket lookup infrastructure to nf_socket_ipv{4,6}.c 2016-11-01 20:50:31 +01:00
nf_tables_core.h netfilter: nft_payload: layer 4 checksum adjustment for pseudoheader fields 2016-12-06 21:47:54 +01:00
nf_tables_ipv4.h netfilter: merge fixup for "nf_tables_netdev: remove redundant ip_hdr assignment" 2016-10-05 20:25:48 -04:00
nf_tables_ipv6.h netfilter: nf_tables: set pktinfo->thoff at AH header if found 2017-03-08 18:35:27 +01:00
nf_tables.h netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails 2017-03-03 13:48:34 +01:00
nfnetlink_log.h
nft_dup.h netfilter: nf_tables: add nft_dup expression 2015-08-07 11:49:49 +02:00
nft_fib.h netfilter: rpfilter: fix incorrect loopback packet judgment 2017-01-16 14:23:01 +01:00
nft_masq.h netfilter: nft_masq: support port range 2016-03-02 20:05:27 +01:00
nft_meta.h netfilter: nft_meta: improve the validity check of pkttype set expr 2016-08-25 13:12:03 +02:00
nft_redir.h netfilter: nf_tables: add new expression nft_redir 2014-10-27 22:49:39 +01:00
nft_reject.h netfilter: nft_reject: restrict to INPUT/FORWARD/OUTPUT 2016-08-25 12:55:34 +02:00
xt_rateest.h net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00