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Patrick McHardy d696c7bdaa netfilter: nf_conntrack: fix hash resizing with namespaces 
As noticed by Jon Masters <jonathan@jonmasters.org>, the conntrack hash
size is global and not per namespace, but modifiable at runtime through
/sys/module/nf_conntrack/hashsize. Changing the hash size will only
resize the hash in the current namespace however, so other namespaces
will use an invalid hash size. This can cause crashes when enlarging
the hashsize, or false negative lookups when shrinking it.

Move the hash size into the per-namespace data and only use the global
hash size to initialize the per-namespace value when instanciating a
new namespace. Additionally restrict hash resizing to init_net for
now as other namespaces are not handled currently.

Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2010-02-08 11:18:07 -08:00
..
ipvs ipvs: Add boundary check on ioctl arguments 2010-01-04 16:37:12 +01:00
Kconfig Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-06-15 03:02:23 -07:00
Makefile netfilter: passive OS fingerprint xtables match 2009-06-08 17:01:51 +02:00
core.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_acct.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_amanda.c net: replace uses of __constant_{endian} 2009-02-01 00:45:17 -08:00
nf_conntrack_core.c netfilter: nf_conntrack: fix hash resizing with namespaces 2010-02-08 11:18:07 -08:00
nf_conntrack_ecache.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_expect.c netfilter: nf_conntrack: fix hash resizing with namespaces 2010-02-08 11:18:07 -08:00
nf_conntrack_extend.c nf_conntrack: Use rcu_barrier() 2009-06-25 16:32:52 +02:00
nf_conntrack_ftp.c netfilter: nf_ct_ftp: fix out of bounds read in update_nl_seq() 2010-01-07 18:33:18 +01:00
nf_conntrack_h323_asn1.c [NETFILTER]: nf_conntrack_h323: constify and annotate H.323 helper 2008-01-31 19:28:07 -08:00
nf_conntrack_h323_main.c net: replace uses of __constant_{endian} 2009-02-01 00:45:17 -08:00
nf_conntrack_h323_types.c [NETFILTER]: nf_conntrack_h323: constify and annotate H.323 helper 2008-01-31 19:28:07 -08:00
nf_conntrack_helper.c netfilter: nf_conntrack: fix hash resizing with namespaces 2010-02-08 11:18:07 -08:00
nf_conntrack_irc.c netfilter: fix endian bug in conntrack printks 2009-03-28 23:55:57 -07:00
nf_conntrack_l3proto_generic.c [NETFILTER]: nf_conntrack: use bool type in struct nf_conntrack_l3proto 2008-04-14 11:15:52 +02:00
nf_conntrack_netbios_ns.c net: skb->rtable accessor 2009-06-03 02:51:02 -07:00
nf_conntrack_netlink.c netfilter: nf_conntrack: fix hash resizing with namespaces 2010-02-08 11:18:07 -08:00
nf_conntrack_pptp.c Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-03-26 15:23:24 -07:00
nf_conntrack_proto.c netfilter: ctnetlink: add callbacks to the per-proto nlattrs 2009-03-25 18:24:48 +01:00
nf_conntrack_proto_dccp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
nf_conntrack_proto_generic.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_proto_gre.c net: Simplify conntrack_proto_gre pernet operations. 2009-12-01 16:15:55 -08:00
nf_conntrack_proto_sctp.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_proto_tcp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
nf_conntrack_proto_udp.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_proto_udplite.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_sane.c netfilter: nf_conntrack: connection tracking helper name persistent aliases 2008-11-17 16:01:42 +01:00
nf_conntrack_sip.c netfilter: nf_conntrack_sip: fix off-by-one in compact header parsing 2010-01-19 19:06:59 +01:00
nf_conntrack_standalone.c netfilter: nf_conntrack: fix hash resizing with namespaces 2010-02-08 11:18:07 -08:00
nf_conntrack_tftp.c netfilter: nf_conntrack: connection tracking helper name persistent aliases 2008-11-17 16:01:42 +01:00
nf_internals.h netfilter: Use unsigned types for hooknum and pf vars 2008-10-08 11:35:00 +02:00
nf_log.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6 2009-12-08 07:38:50 -08:00
nf_queue.c netfilter: queue: use NFPROTO_ for queue callsites 2009-05-08 10:30:46 +02:00
nf_sockopt.c net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
nf_tproxy_core.c net: Partially allow skb destructors to be used on receive path 2009-02-04 16:55:27 -08:00
nfnetlink.c netfilter: nfnetlink: constify message attributes and headers 2009-08-25 16:07:58 +02:00
nfnetlink_log.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2009-12-03 13:23:12 -08:00
nfnetlink_queue.c netfilter: remove unneccessary checks from netlink notifiers 2009-11-06 17:04:00 +01:00
x_tables.c mm: replace various uses of num_physpages by totalram_pages 2009-09-22 07:17:38 -07:00
xt_CLASSIFY.c netfilter: xtables: move extension arguments into compound structure (4/6) 2008-10-08 11:35:19 +02:00
xt_CONNMARK.c netfilter: xtables: remove xt_CONNMARK v0 2009-08-10 12:25:11 +02:00
xt_CONNSECMARK.c netfilter: xtables: cut down on static data for family-independent extensions 2008-10-08 11:35:20 +02:00
xt_DSCP.c netfilter: xtables: remove xt_TOS v0 2009-08-10 12:25:11 +02:00
xt_HL.c netfilter: Combine ipt_TTL and ip6t_HL source 2009-02-18 18:38:40 +01:00
xt_LED.c netfilter: x_tables: add LED trigger target 2009-02-20 10:55:14 +01:00
xt_MARK.c netfilter: xtables: remove xt_MARK v0, v1 2009-08-10 12:25:12 +02:00
xt_NFLOG.c netfilter: xt_NFLOG: don't call nf_log_packet in NFLOG module. 2008-11-04 14:21:08 +01:00
xt_NFQUEUE.c netfilter: fix some sparse endianess warnings 2009-06-22 14:15:02 +02:00
xt_NOTRACK.c netfilter: xtables: use NFPROTO_UNSPEC in more extensions 2008-10-08 11:35:20 +02:00
xt_RATEEST.c net: restore gnet_stats_basic to previous definition 2009-08-17 21:33:49 -07:00
xt_SECMARK.c netfilter: xtables: move extension arguments into compound structure (6/6) 2008-10-08 11:35:19 +02:00
xt_TCPMSS.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
xt_TCPOPTSTRIP.c netfilter: xtables: move extension arguments into compound structure (4/6) 2008-10-08 11:35:19 +02:00
xt_TPROXY.c netfilter: xtables: move extension arguments into compound structure (5/6) 2008-10-08 11:35:19 +02:00
xt_TRACE.c netfilter: xtables: move extension arguments into compound structure (4/6) 2008-10-08 11:35:19 +02:00
xt_cluster.c netfilter: fix some sparse endianess warnings 2009-06-22 14:15:02 +02:00
xt_comment.c netfilter: xtables: use NFPROTO_UNSPEC in more extensions 2008-10-08 11:35:20 +02:00
xt_connbytes.c netfilter: xtables: cut down on static data for family-independent extensions 2008-10-08 11:35:20 +02:00
xt_connlimit.c netfilter: xt_connlimit: fix regression caused by zero family value 2009-11-06 18:08:32 -08:00
xt_connmark.c netfilter: xtables: remove xt_connmark v0 2009-08-10 12:25:12 +02:00
xt_conntrack.c netfilter: xtables: fix conntrack match v1 ipt-save output 2009-11-23 10:43:57 +01:00
xt_dccp.c nf/dccp: merge errorpaths 2008-12-14 23:19:02 -08:00
xt_dscp.c netfilter: xtables: remove xt_TOS v0 2009-08-10 12:25:11 +02:00
xt_esp.c netfilter: xtables: move extension arguments into compound structure (2/6) 2008-10-08 11:35:18 +02:00
xt_hashlimit.c mm: replace various uses of num_physpages by totalram_pages 2009-09-22 07:17:38 -07:00
xt_helper.c netfilter: xtables: cut down on static data for family-independent extensions 2008-10-08 11:35:20 +02:00
xt_hl.c netfilter: Combine ipt_ttl and ip6t_hl source 2009-02-18 18:39:31 +01:00
xt_iprange.c netfilter: xtables: remove xt_iprange v0 2009-08-10 13:09:44 +02:00
xt_length.c netfilter: xtables: move extension arguments into compound structure (1/6) 2008-10-08 11:35:18 +02:00
xt_limit.c netfilter: xt_limit: fix invalid return code in limit_mt_check() 2009-11-23 13:37:23 +01:00
xt_mac.c netfilter: xtables: use NFPROTO_UNSPEC in more extensions 2008-10-08 11:35:20 +02:00
xt_mark.c netfilter: xtables: remove xt_mark v0 2009-08-10 13:09:45 +02:00
xt_multiport.c netfilter: xtables: move extension arguments into compound structure (2/6) 2008-10-08 11:35:18 +02:00
xt_osf.c netfilter: xt_osf: fix xt_osf_remove_callback() return value 2009-11-19 13:16:26 -08:00
xt_owner.c netfilter: xtables: remove xt_owner v0 2009-08-10 13:32:30 +02:00
xt_physdev.c netfilter: factorize ifname_compare() 2009-03-25 17:31:52 +01:00
xt_pkttype.c netfilter: xtables: cut down on static data for family-independent extensions 2008-10-08 11:35:20 +02:00
xt_policy.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
xt_quota.c netfilter: xt_quota: fix wrong return value (error case) 2009-08-23 19:09:23 -07:00
xt_rateest.c netfilter: xt_rateest: fix comparison with self 2009-06-22 14:17:12 +02:00
xt_realm.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
xt_recent.c tree-wide: convert open calls to remove spaces to skip_spaces() lib function 2009-12-15 08:53:32 -08:00
xt_sctp.c netfilter: xt_sctp: sctp chunk mapping doesn't work 2009-02-09 14:34:56 -08:00
xt_socket.c netfilter: xt_socket: make module available for INPUT chain 2009-10-29 15:35:10 +01:00
xt_state.c netfilter: xtables: move extension arguments into compound structure (3/6) 2008-10-08 11:35:19 +02:00
xt_statistic.c netfilter: xtables: avoid pointer to self 2009-03-16 15:35:29 +01:00
xt_string.c netfilter: xtables: move extension arguments into compound structure (3/6) 2008-10-08 11:35:19 +02:00
xt_tcpmss.c netfilter: xtables: move extension arguments into compound structure (1/6) 2008-10-08 11:35:18 +02:00
xt_tcpudp.c netfilter: xtables: move extension arguments into compound structure (2/6) 2008-10-08 11:35:18 +02:00
xt_time.c netfilter 08/09: xt_time: print timezone for user information 2009-01-12 21:18:36 -08:00
xt_u32.c netfilter: xtables: move extension arguments into compound structure (1/6) 2008-10-08 11:35:18 +02:00