[NETFILTER]: x_tables: return new table from {arp,ip,ip6}t_register_table()
commit44d34e721e2c81ccdfb13cf34996309247ae2981
authorAlexey Dobriyan <adobriyan@sw.ru>
Thu, 31 Jan 2008 12:02:44 +0000 (31 04:02 -0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 1 Feb 2008 03:27:36 +0000 (31 19:27 -0800)
treefec2063c8573700fd01cb6c11875769751744603
parent8d870052079d255917ec4f8431f5ec102707b7af
[NETFILTER]: x_tables: return new table from {arp,ip,ip6}t_register_table()

Typical table module registers xt_table structure (i.e. packet_filter)
and link it to list during it. We can't use one template for it because
corresponding list_head will become corrupted. We also can't unregister
with template because it wasn't changed at all and thus doesn't know in
which list it is.

So, we duplicate template at the very first step of table registration.
Table modules will save it for use during unregistration time and actual
filtering.

Do it at once to not screw bisection.

P.S.: renaming i.e. packet_filter => __packet_filter is temporary until
      full netnsization of table modules is done.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 files changed:
include/linux/netfilter_arp/arp_tables.h
include/linux/netfilter_ipv4/ip_tables.h
include/linux/netfilter_ipv6/ip6_tables.h
net/ipv4/netfilter/arp_tables.c
net/ipv4/netfilter/arptable_filter.c
net/ipv4/netfilter/ip_tables.c
net/ipv4/netfilter/iptable_filter.c
net/ipv4/netfilter/iptable_mangle.c
net/ipv4/netfilter/iptable_raw.c
net/ipv4/netfilter/nf_nat_rule.c
net/ipv6/netfilter/ip6_tables.c
net/ipv6/netfilter/ip6table_filter.c
net/ipv6/netfilter/ip6table_mangle.c
net/ipv6/netfilter/ip6table_raw.c
net/netfilter/x_tables.c