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alistair23-linux/include/net/netfilter
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Pablo Neira Ayuso 25e94a997b netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails 
The underlying nlmsg_multicast() already sets sk->sk_err for us to
notify socket overruns, so we should not do anything with this return
value. So we just call nfnetlink_set_err() if:

1) We fail to allocate the netlink message.

or

2) We don't have enough space in the netlink message to place attributes,
   which means that we likely need to allocate a larger message.

Before this patch, the internal ESRCH netlink error code was propagated
to userspace, which is quite misleading. Netlink semantics mandate that
listeners just hit ENOBUFS if the socket buffer overruns.

Reported-by: Alexander Alemayhu <alexander@alemayhu.com>
Tested-by: Alexander Alemayhu <alexander@alemayhu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-03 13:48:34 +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.h netfilter: merge ctinfo into nfct pointer storage area 2017-02-02 14:31:56 +01:00
nf_conntrack_acct.h netfilter: introduce nf_conn_acct structure 2013-11-03 21:48:49 +01:00
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 netfilter: Remove extern from function prototypes 2013-09-23 16:29:42 -04:00
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 netfilter: Remove extern from function prototypes 2013-09-23 16:29:42 -04:00
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_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.h netfilter: nat: convert nat bysrc hash to rhashtable 2016-07-11 12:07:57 +02:00
nf_nat_core.h netfilter: Pass net into nf_xfrm_me_harder 2015-09-18 22:00:22 +02:00
nf_nat_helper.h netfilter: Remove extern from function prototypes 2013-09-23 16:29:42 -04:00
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_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.h netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails 2017-03-03 13:48:34 +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: don't drop IPv6 packets that cannot parse transport 2016-09-12 18:52:32 +02:00
nfnetlink_log.h netfilter: log: netns NULL ptr bug when calling from conntrack 2013-05-15 14:11:07 +02:00
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