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Pablo Neira Ayuso 19abb7b090 netfilter: ctnetlink: deliver events for conntracks changed from userspace 
As for now, the creation and update of conntracks via ctnetlink do not
propagate an event to userspace. This can result in inconsistent situations
if several userspace processes modify the connection tracking table by means
of ctnetlink at the same time. Specifically, using the conntrack command
line tool and conntrackd at the same time can trigger unconsistencies.

This patch also modifies the event cache infrastructure to pass the
process PID and the ECHO flag to nfnetlink_send() to report back
to userspace if the process that triggered the change needs so.
Based on a suggestion from Patrick McHardy.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-18 11:56:20 +01:00
..
9p net: remove two duplicated #include 2008-11-03 18:23:09 -08:00
802 net: '&' redux 2008-11-03 18:21:05 -08:00
8021q net/: Kill now superfluous ->last_rx stores. 2008-11-03 22:01:07 -08:00
appletalk net: '&' redux 2008-11-03 18:21:05 -08:00
atm net: replace NIPQUAD() in net/*/ 2008-10-31 00:54:56 -07:00
ax25 net: '&' redux 2008-11-03 18:21:05 -08:00
bluetooth net/: Kill now superfluous ->last_rx stores. 2008-11-03 22:01:07 -08:00
bridge netfilter: netns ebtables: br_nf_pre_routing_finish() fixup 2008-11-04 14:31:29 +01:00
can net: Remove CONFIG_KMOD from net/ (towards removing CONFIG_KMOD entirely) 2008-10-16 15:24:51 -07:00
core net: '&' redux 2008-11-03 18:21:05 -08:00
dccp net: replace NIPQUAD() in net/*/ 2008-10-31 00:54:56 -07:00
decnet net: '&' redux 2008-11-03 18:21:05 -08:00
dsa net/: Kill now superfluous ->last_rx stores. 2008-11-03 22:01:07 -08:00
econet netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
ethernet dsa: add support for Trailer tagging format 2008-10-08 17:24:16 -07:00
ieee80211 net/: Kill now superfluous ->last_rx stores. 2008-11-03 22:01:07 -08:00
ipv4 netfilter: nf_nat: remove warn_if_extra_mangle 2008-11-04 14:35:39 +01:00
ipv6 net: '&' redux 2008-11-03 18:21:05 -08:00
ipx net: '&' redux 2008-11-03 18:21:05 -08:00
irda net: '&' redux 2008-11-03 18:21:05 -08:00
iucv iucv: Fix mismerge again. 2008-09-30 03:03:35 -07:00
key af_key: fix SADB_X_SPDDELETE response 2008-10-10 14:07:03 -07:00
lapb
llc net: '&' redux 2008-11-03 18:21:05 -08:00
mac80211 mac80211: fix two kernel-doc warnings 2008-10-31 19:02:36 -04:00
netfilter netfilter: ctnetlink: deliver events for conntracks changed from userspace 2008-11-18 11:56:20 +01:00
netlabel net: replace NIPQUAD() in net/*/ 2008-10-31 00:54:56 -07:00
netlink netlink: constify struct nlattr * arg to parsing functions 2008-10-28 11:59:11 -07:00
netrom net: '&' redux 2008-11-03 18:21:05 -08:00
packet net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
phonet net: '&' redux 2008-11-03 18:21:05 -08:00
rfkill rfkill: rate-limit rfkill-input workqueue usage (v3) 2008-10-31 19:00:10 -04:00
rose net: '&' redux 2008-11-03 18:21:05 -08:00
rxrpc net: replace NIPQUAD() in net/*/ 2008-10-31 00:54:56 -07:00
sched netem: eliminate unneeded return values 2008-11-03 21:13:26 -08:00
sctp net: '&' redux 2008-11-03 18:21:05 -08:00
sunrpc sunrpc: Fix build warning due to typo in %pI4 format changes. 2008-11-02 23:57:06 -08:00
tipc net: convert print_mac to %pM 2008-10-27 17:06:18 -07:00
unix net: '&' redux 2008-11-03 18:21:05 -08:00
wanrouter wanmain.c doesn't need syncppp.h 2008-07-23 23:00:36 +02:00
wireless wireless regulatory: move ignore_request 2008-10-31 19:02:32 -04:00
x25 net: '&' redux 2008-11-03 18:21:05 -08:00
xfrm net: replace NIPQUAD() in net/*/ 2008-10-31 00:54:56 -07:00
compat.c flag parameters: paccept 2008-07-24 10:47:27 -07:00
Kconfig netns: Coexist with the sysfs limitations v2 2008-10-27 17:51:47 -07:00
Makefile net: Distributed Switch Architecture protocol support 2008-10-08 17:15:19 -07:00
nonet.c
socket.c net: remove two duplicated #include 2008-11-03 18:23:09 -08:00
sysctl_net.c missing bits of net-namespace / sysctl 2008-07-27 09:45:34 -07:00
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