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alistair23-linux/include/net/netfilter
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Florian Westphal 0434ccdcf8 netfilter: nf_tables: rework ct timeout set support 
Using a private template is problematic:

1. We can't assign both a zone and a timeout policy
   (zone assigns a conntrack template, so we hit problem 1)
2. Using a template needs to take care of ct refcount, else we'll
   eventually free the private template due to ->use underflow.

This patch reworks template policy to instead work with existing conntrack.

As long as such conntrack has not yet been placed into the hash table
(unconfirmed) we can still add the timeout extension.

The only caveat is that we now need to update/correct ct->timeout to
reflect the initial/new state, otherwise the conntrack entry retains the
default 'new' timeout.

Side effect of this change is that setting the policy must
now occur from chains that are evaluated *after* the conntrack lookup
has taken place.

No released kernel contains the timeout policy feature yet, so this change
should be ok.

Changes since v2:
 - don't handle 'ct is confirmed case'
 - after previous patch, no need to special-case tcp/dccp/sctp timeout
   anymore

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-29 13:04:38 +02:00
..
ipv4 netfilter: conntrack: remove l3proto abstraction 2018-07-17 15:27:49 +02:00
ipv6 netfilter: add NAT support for shifted portmap ranges 2018-04-24 10:29:12 +02:00
br_netfilter.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack.h netfilter: use kvmalloc_array to allocate memory for hashtable 2018-08-03 18:37:55 +02:00
nf_conntrack_acct.h netfilter: introduce nf_conn_acct structure 2013-11-03 21:48:49 +01:00
nf_conntrack_core.h netfilter: conntrack: remove l3proto abstraction 2018-07-17 15:27:49 +02:00
nf_conntrack_count.h netfilter: nf_conncount: Add list lock and gc worker, and RCU for init tree search 2018-07-18 11:26:37 +02:00
nf_conntrack_ecache.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_expect.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_extend.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_helper.h netfilter: Remove useless param helper of nf_ct_helper_ext_add 2018-07-18 11:26:42 +02:00
nf_conntrack_l4proto.h netfilter: remove ifdef around cttimeout in struct nf_conntrack_l4proto 2018-08-07 17:14:19 +02:00
nf_conntrack_labels.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_seqadj.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_synproxy.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_timeout.h netfilter: nf_tables: rework ct timeout set support 2018-08-29 13:04:38 +02:00
nf_conntrack_timestamp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_tuple.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_zones.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_dup_netdev.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_flow_table.h rhashtable: split rhashtable.h 2018-06-22 13:43:27 +09:00
nf_log.h netfilter: check if the socket netns is correct. 2018-06-28 22:21:32 +09:00
nf_nat.h netfilter: nf_nat: add nat hook register functions to nf_nat 2018-05-23 09:14:05 +02:00
nf_nat_core.h netfilter: add struct nf_nat_hook and use it 2018-05-23 09:26:07 +02:00
nf_nat_helper.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_nat_l3proto.h netfilter: nf_nat: add nat type hooks to nat core 2018-05-23 09:14:06 +02:00
nf_nat_l4proto.h netfilter: add NAT support for shifted portmap ranges 2018-04-24 10:29:12 +02:00
nf_nat_redirect.h netfilter: add NAT support for shifted portmap ranges 2018-04-24 10:29:12 +02:00
nf_queue.h netfilter: core: remove synchronize_net call if nfqueue is used 2018-01-08 18:01:06 +01:00
nf_socket.h netfilter: Decrease code duplication regarding transparent socket option 2018-06-03 00:02:01 +02:00
nf_tables.h netfilter: nf_tables: fix register ordering 2018-08-16 19:37:02 +02:00
nf_tables_core.h netfilter: nf_tables: handle meta/lookup with direct call 2018-07-30 11:52:02 +02:00
nf_tables_ipv4.h netfilter: nf_tables_inet: don't use multihook infrastructure anymore 2018-01-08 18:01:20 +01:00
nf_tables_ipv6.h netfilter: nf_tables_inet: don't use multihook infrastructure anymore 2018-01-08 18:01:20 +01:00
nf_tproxy.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2018-07-20 22:28:28 -07:00
nfnetlink_log.h netfilter: xt_NFLOG: use nf_log_packet instead of nfulnl_log_packet. 2018-04-19 13:02:44 +02:00
nft_fib.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nft_masq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nft_redir.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nft_reject.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xt_rateest.h netfilter: make xt_rateest hash table per net 2018-03-05 23:15:44 +01:00