Commit Graph

1684 Commits

Author SHA1 Message Date
Alexey Dobriyan
5ece6c2ddd net: fix tiny output corruption of /proc/net/snmp6
Because "name" is static, it can be occasionally be filled with
somewhat garbage if two processes read /proc/net/snmp6.

Also, remove useless casts and "-1" -- snprintf() correctly terminates it's
output.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20 04:20:10 -08:00
Benjamin Thery
eedd726efb ipv6: use seq_release_private for ip6mr.c /proc entries
In ip6mr.c, /proc entries /proc/net/ip6_mr_cache and /proc/net/ip6_mr_vif
are opened with seq_open_private(), thus seq_release_private() should be 
used to release them.
Should fix a small memory leak.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20 04:16:12 -08:00
Brian Haley
6e093d9dff ipv6: routing header fixes
This patch fixes two bugs:

1. setsockopt() of anything but a Type 2 routing header should return
EINVAL instead of EPERM.  Noticed by Shan Wei
(shanwei@cn.fujitsu.com).

2. setsockopt()/sendmsg() of a Type 2 routing header with invalid
length or segments should return EINVAL.  These values are statically
fixed in RFC 3775, unlike the variable Type 0 was.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-12 22:59:21 -08:00
Benjamin Thery
87b30a6530 ipv6: fix ip6_mr_init error path
The order of cleanup operations in the error/exit section of ip6_mr_init()
is completely inversed. It should be the other way around.
Also a del_timer() is missing in the error path.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-10 16:34:11 -08:00
Benjamin Thery
e3ec6cfc26 ipv6: fix run pending DAD when interface becomes ready
With some net devices types, an IPv6 address configured while the
interface was down can stay 'tentative' forever, even after the interface
is set up. In some case, pending IPv6 DADs are not executed when the
device becomes ready.

I observed this while doing some tests with kvm. If I assign an IPv6 
address to my interface eth0 (kvm driver rtl8139) when it is still down
then the address is flagged tentative (IFA_F_TENTATIVE). Then, I set
eth0 up, and to my surprise, the address stays 'tentative', no DAD is
executed and the address can't be pinged.

I also observed the same behaviour, without kvm, with virtual interfaces
types macvlan and veth.

Some easy steps to reproduce the issue with macvlan:

1. ip link add link eth0 type macvlan
2. ip -6 addr add 2003::ab32/64 dev macvlan0
3. ip addr show dev macvlan0
   ... 
   inet6 2003::ab32/64 scope global tentative
   ...
4. ip link set macvlan0 up
5. ip addr show dev macvlan0
   ...
   inet6 2003::ab32/64 scope global tentative
   ...
   Address is still tentative

I think there's a bug in net/ipv6/addrconf.c, addrconf_notify():
addrconf_dad_run() is not always run when the interface is flagged IF_READY.
Currently it is only run when receiving NETDEV_CHANGE event. Looks like
some (virtual) devices doesn't send this event when becoming up.

For both NETDEV_UP and NETDEV_CHANGE events, when the interface becomes
ready, run_pending should be set to 1. Patch below.

'run_pending = 1' could be moved below the if/else block but it makes 
the code less readable.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-05 01:43:57 -08:00
Andreas Steffen
79654a7698 xfrm: Have af-specific init_tempsel() initialize family field of temporary selector
While adding MIGRATE support to strongSwan, Andreas Steffen noticed that
the selectors provided in XFRM_MSG_ACQUIRE have their family field
uninitialized (those in MIGRATE do have their family set).

Looking at the code, this is because the af-specific init_tempsel()
(called via afinfo->init_tempsel() in xfrm_init_tempsel()) do not set
the value.

Reported-by: Andreas Steffen <andreas.steffen@strongswan.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
2008-11-04 14:49:19 -08:00
Wei Yongjun
0856f93958 udp: Fix the SNMP counter of UDP_MIB_INERRORS
UDP packets received in udpv6_recvmsg() are not only IPv6 UDP packets, but
also have IPv4 UDP packets, so when do the counter of UDP_MIB_INERRORS in
udpv6_recvmsg(), we should check whether the packet is a IPv6 UDP packet
or a IPv4 UDP packet.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-02 23:52:46 -08:00
Wei Yongjun
f26ba17511 udp: Fix the SNMP counter of UDP_MIB_INDATAGRAMS
If UDP echo is sent to xinetd/echo-dgram, the UDP reply will be received
at the sender. But the SNMP counter of UDP_MIB_INDATAGRAMS will be not
increased, UDP6_MIB_INDATAGRAMS will be increased instead.

  Endpoint A                      Endpoint B
  UDP Echo request ----------->
  (IPv4, Dst port=7)
                   <----------    UDP Echo Reply
                                  (IPv4, Src port=7)

This bug is come from this patch cb75994ec3.

It do counter UDP[6]_MIB_INDATAGRAMS until udp[v6]_recvmsg. Because
xinetd used IPv6 socket to receive UDP messages, thus, when received
UDP packet, the UDP6_MIB_INDATAGRAMS will be increased in function
udpv6_recvmsg() even if the packet is a IPv4 UDP packet.

This patch fixed the problem.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-02 23:52:45 -08:00
Eric Dumazet
920a46115c udp: multicast packets need to check namespace
Current UDP multicast delivery is not namespace aware.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-01 21:22:23 -07:00
Linus Torvalds
5fdf11283e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  netfilter: replace old NF_ARP calls with NFPROTO_ARP
  netfilter: fix compilation error with NAT=n
  netfilter: xt_recent: use proc_create_data()
  netfilter: snmp nat leaks memory in case of failure
  netfilter: xt_iprange: fix range inversion match
  netfilter: netns: use NFPROTO_NUMPROTO instead of NUMPROTO for tables array
  netfilter: ctnetlink: remove obsolete NAT dependency from Kconfig
  pkt_sched: sch_generic: Fix oops in sch_teql
  dccp: Port redirection support for DCCP
  tcp: Fix IPv6 fallout from 'Port redirection support for TCP'
  netdev: change name dropping error codes
  ipvs: Update CONFIG_IP_VS_IPV6 description and help text
2008-10-20 09:06:35 -07:00
KOVACS Krisztian
fd5070370c tcp: Fix IPv6 fallout from 'Port redirection support for TCP'
'tcp: Port redirection support for TCP' (a3116ac5c) added a new member
to inet_request_sock() which inet_csk_clone() makes use of but failed
to add proper initialization to the IPv6 syncookie code and missed a
couple of places where the new member should be used instead of
inet_sk(sk)->sport.

Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-19 23:35:58 -07:00
Linus Torvalds
cb23832e39 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits)
  decnet: Fix compiler warning in dn_dev.c
  IPV6: Fix default gateway criteria wrt. HIGH/LOW preference radv option
  net/802/fc.c: Fix compilation warnings
  netns: correct mib stats in ip6_route_me_harder()
  netns: fix net_generic array leak
  rt2x00: fix regression introduced by "mac80211: free up 2 bytes in skb->cb"
  rtl8187: Add USB ID for Belkin F5D7050 with RTL8187B chip
  p54usb: Device ID updates
  mac80211: fixme for kernel-doc
  ath9k/mac80211: disallow fragmentation in ath9k, report to userspace
  libertas : Remove unused variable warning for "old_channel" from cmd.c
  mac80211: Fix scan RX processing oops
  orinoco: fix unsafe locking in spectrum_cs_suspend
  orinoco: fix unsafe locking in orinoco_cs_resume
  cfg80211: fix debugfs error handling
  mac80211: fix debugfs netdev rename
  iwlwifi: fix ct kill configuration for 5350
  mac80211: fix HT information element parsing
  p54: Fix compilation problem on PPC
  mac80211: fix debugfs lockup
  ...
2008-10-16 11:26:26 -07:00
Alexey Dobriyan
f221e726bf sysctl: simplify ->strategy
name and nlen parameters passed to ->strategy hook are unused, remove
them.  In general ->strategy hook should know what it's doing, and don't
do something tricky for which, say, pointer to original userspace array
may be needed (name).

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net> [ networking bits ]
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Pedro Ribeiro
22441cfa0c IPV6: Fix default gateway criteria wrt. HIGH/LOW preference radv option
Problem observed:
               In IPv6, in the presence of multiple routers candidates to
               default gateway in one segment, each sending a different
               value of preference, the Linux hosts connected to the
               segment weren't selecting the right one in all the
               combinations possible of LOW/MEDIUM/HIGH preference.

This patch changes two files:
include/linux/icmpv6.h
               Get the "router_pref" bitfield in the right place
               (as RFC4191 says), named the bit left with this fix as
               "home_agent" (RFC3775 say that's his function)

net/ipv6/ndisc.c
               Corrects the binary logic behind the updating of the
               router preference in the flags of the routing table

Result:
               With this two fixes applied, the default route used by
               the system was to consistent with the rules mentioned
               in RFC4191 in case of changes in the value of preference
               in router advertisements

Signed-off-by: Pedro Ribeiro <pribeiro@net.ipl.pt>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-15 16:03:01 -07:00
Alexey Dobriyan
eef9d90dcd netns: correct mib stats in ip6_route_me_harder()
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-14 22:55:21 -07:00
Alexey Dobriyan
e7dc849494 netns: mib6 section fixlet
LD      net/ipv6/ipv6.o
WARNING: net/ipv6/ipv6.o(.text+0xd8): Section mismatch in reference from the function inet6_net_init() to the function .init.text:ipv6_init_mibs()

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-13 18:54:07 -07:00
Guo-Fu Tseng
fa3e5b4eb8 tcpv6: fix error with CONFIG_TCP_MD5SIG disabled
This patch fix error with CONFIG_TCP_MD5SIG disabled.

Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-09 21:11:56 -07:00
Ilpo Järvinen
626e264dd1 tcpv6: combine tcp_v6_send_(reset|ack)
$ codiff tcp_ipv6.o.old tcp_ipv6.o.new
net/ipv6/tcp_ipv6.c:
  tcp_v6_md5_hash_hdr | -144
  tcp_v6_send_ack     | -585
  tcp_v6_send_reset   | -540
 3 functions changed, 1269 bytes removed, diff: -1269

net/ipv6/tcp_ipv6.c:
  tcp_v6_send_response | +791
 1 function changed, 791 bytes added, diff: +791

tcp_ipv6.o.new:
 4 functions changed, 791 bytes added, 1269 bytes removed, diff: -478

I choose to leave the reset related netns comment in place (not
the one that is killed) as I cannot understand its English so
it's a bit hard for me to evaluate its usefulness :-).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-09 14:42:40 -07:00
Ilpo Järvinen
81ada62d70 tcpv6: convert opt[] -> topt in tcp_v6_send_reset
after this I get:

$ diff-funcs tcp_v6_send_reset tcp_ipv6.c tcp_ipv6.c tcp_v6_send_ack
 --- tcp_ipv6.c:tcp_v6_send_reset()
 +++ tcp_ipv6.c:tcp_v6_send_ack()
@@ -1,4 +1,5 @@
-static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
+static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
u32 ts,
+                           struct tcp_md5sig_key *key)
 {
        struct tcphdr *th = tcp_hdr(skb), *t1;
        struct sk_buff *buff;
@@ -7,31 +8,14 @@
        struct sock *ctl_sk = net->ipv6.tcp_sk;
        unsigned int tot_len = sizeof(struct tcphdr);
        __be32 *topt;
-#ifdef CONFIG_TCP_MD5SIG
-       struct tcp_md5sig_key *key;
-#endif
-
-       if (th->rst)
-               return;
-
-       if (!ipv6_unicast_destination(skb))
-               return;

+       if (ts)
+               tot_len += TCPOLEN_TSTAMP_ALIGNED;
 #ifdef CONFIG_TCP_MD5SIG
-       if (sk)
-               key = tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr);
-       else
-               key = NULL;
-
        if (key)
                tot_len += TCPOLEN_MD5SIG_ALIGNED;
 #endif

-       /*
-        * We need to grab some memory, and put together an RST,
-        * and then put it into the queue to be sent.
-        */
-
        buff = alloc_skb(MAX_HEADER + sizeof(struct ipv6hdr) + tot_len,
                         GFP_ATOMIC);
        if (buff == NULL)
@@ -46,18 +30,20 @@
        t1->dest = th->source;
        t1->source = th->dest;
        t1->doff = tot_len / 4;
-       t1->rst = 1;
-
-       if(th->ack) {
-               t1->seq = th->ack_seq;
-       } else {
-               t1->ack = 1;
-               t1->ack_seq = htonl(ntohl(th->seq) + th->syn + th->fin
-                                   + skb->len - (th->doff<<2));
-       }
+       t1->seq = htonl(seq);
+       t1->ack_seq = htonl(ack);
+       t1->ack = 1;
+       t1->window = htons(win);

        topt = (__be32 *)(t1 + 1);

+       if (ts) {
+               *topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
+                               (TCPOPT_TIMESTAMP << 8) |
TCPOLEN_TIMESTAMP);
+               *topt++ = htonl(tcp_time_stamp);
+               *topt++ = htonl(ts);
+       }
+
 #ifdef CONFIG_TCP_MD5SIG
        if (key) {
                *topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
@@ -84,15 +70,10 @@
        fl.fl_ip_sport = t1->source;
        security_skb_classify_flow(skb, &fl);

-       /* Pass a socket to ip6_dst_lookup either it is for RST
-        * Underlying function will use this to retrieve the network
-        * namespace
-        */
        if (!ip6_dst_lookup(ctl_sk, &buff->dst, &fl)) {
                if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) {
                        ip6_xmit(ctl_sk, buff, &fl, NULL, 0);
                        TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
-                       TCP_INC_STATS_BH(net, TCP_MIB_OUTRSTS);
                        return;
                }
        }


...which starts to be trivial to combine.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-09 14:42:01 -07:00
Ilpo Järvinen
77c676da1b tcpv6: trivial formatting changes to send_(ack|reset)
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-09 14:41:38 -07:00
Ilpo Järvinen
78e645cb89 tcpv[46]: fix md5 pseudoheader address field ordering
Maybe it's just me but I guess those md5 people made a mess
out of it by having *_md5_hash_* to use daddr, saddr order
instead of the one that is natural (and equal to what csum
functions use). For the segment were sending, the original
addresses are reversed so buff's saddr == skb's daddr and
vice-versa.

Maybe I can finally proceed with unification of some code
after fixing it first... :-)

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-09 14:37:47 -07:00
Ilpo Järvinen
53b125779f tcpv6: fix option space offsets with md5
More breakage :-), part of timestamps just were previously
overwritten.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 14:36:33 -07:00
Ilpo Järvinen
52cd5750e8 tcp: fix length used for checksum in a reset
While looking for some common code I came across difference
in checksum calculation between tcp_v6_send_(reset|ack) I
couldn't explain. I checked both v4 and v6 and found out that
both seem to have the same "feature". I couldn't find anything
in rfc nor anywhere else which would state that md5 option
should be ignored like it was in case of reset so I came to
a conclusion that this is probably a genuine bug. I suspect
that addition of md5 just was fooled by the excessive
copy-paste code in those functions and the reset part was
never tested well enough to find out the problem.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:34:06 -07:00
Denis V. Lunev
2ca89cea5c ipv6: remove unused not init_ipv6_mibs/cleanup_ipv6_mibs
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:17:07 -07:00
Denis V. Lunev
9261e53701 ipv6: making ip and icmp statistics per/namespace
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:16:45 -07:00
Denis V. Lunev
55d43808eb ipv6: added net argument to ICMP6MSGIN_INC_STATS_BH
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:15:46 -07:00
Denis V. Lunev
5a57d4c7fd ipv6: added net argument to ICMP6MSGOUT_INC_STATS_BH
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:15:05 -07:00
Denis V. Lunev
5c5d244bd3 ipv6: added net argument to ICMP6MSGOUT_INC_STATS
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:14:44 -07:00
Denis V. Lunev
e41b5368e0 ipv6: added net argument to ICMP6_INC_STATS_BH
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:14:13 -07:00
Denis V. Lunev
a862f6a6dc ipv6: added net argument to ICMP6_INC_STATS
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:13:58 -07:00
Denis V. Lunev
821d57776d ipv6: added net argument to IP6_ADD_STATS_BH
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:13:31 -07:00
Denis V. Lunev
483a47d2fe ipv6: added net argument to IP6_INC_STATS_BH
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 11:09:27 -07:00
Denis V. Lunev
3bd653c845 netns: add net parameter to IP6_INC_STATS
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 10:54:51 -07:00
Denis V. Lunev
98b3377ca7 ipv6: consolidate error paths in ipv6_frag_rcv
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 10:53:30 -07:00
Denis V. Lunev
0b0588d42b ipv6: local dev is actually unused in ip6_fragment
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 10:52:42 -07:00
Jan Engelhardt
916a917dfe netfilter: xtables: provide invoked family value to extensions
By passing in the family through which extensions were invoked, a bit
of data space can be reclaimed. The "family" member will be added to
the parameter structures and the check functions be adjusted.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:20 +02:00
Jan Engelhardt
a2df1648ba netfilter: xtables: move extension arguments into compound structure (6/6)
This patch does this for target extensions' destroy functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:19 +02:00
Jan Engelhardt
af5d6dc200 netfilter: xtables: move extension arguments into compound structure (5/6)
This patch does this for target extensions' checkentry functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:19 +02:00
Jan Engelhardt
7eb3558655 netfilter: xtables: move extension arguments into compound structure (4/6)
This patch does this for target extensions' target functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:19 +02:00
Jan Engelhardt
6be3d8598e netfilter: xtables: move extension arguments into compound structure (3/6)
This patch does this for match extensions' destroy functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:19 +02:00
Jan Engelhardt
9b4fce7a35 netfilter: xtables: move extension arguments into compound structure (2/6)
This patch does this for match extensions' checkentry functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:18 +02:00
Jan Engelhardt
f7108a20de netfilter: xtables: move extension arguments into compound structure (1/6)
The function signatures for Xtables extensions have grown over time.
It involves a lot of typing/replication, and also a bit of stack space
even if they are not used. Realize an NFWS2008 idea and pack them into
structs. The skb remains outside of the struct so gcc can continue to
apply its optimizations.

This patch does this for match extensions' match functions.

A few ambiguities have also been addressed. The "offset" parameter for
example has been renamed to "fragoff" (there are so many different
offsets already) and "protoff" to "thoff" (there is more than just one
protocol here, so clarify).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:18 +02:00
Jan Engelhardt
c2df73de24 netfilter: xtables: use "if" blocks in Kconfig
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:18 +02:00
Jan Engelhardt
aba0d34800 netfilter: xtables: sort extensions alphabetically in Kconfig
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:17 +02:00
Jan Engelhardt
2203eb4760 netfilter: ip6tables: fix Kconfig entry dependency for ip6t_LOG
ip6t_LOG does certainly not depend on the filter table.
(Also, move it so that menuconfig still displays it correctly.)

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:17 +02:00
Jan Engelhardt
77d7358995 netfilter: ip6tables: fix name of hopbyhop in Kconfig
The module is called hbh, not hopbyhop.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:17 +02:00
Jan Engelhardt
367c679007 netfilter: xtables: do centralized checkentry call (1/2)
It used to be that {ip,ip6,etc}_tables called extension->checkentry
themselves, but this can be moved into the xtables core.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:17 +02:00
Alexey Dobriyan
c2a2c7e0cc netfilter: netns nf_conntrack: per-netns net.netfilter.nf_conntrack_log_invalid sysctl
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:08 +02:00
Alexey Dobriyan
c04d05529a netfilter: netns nf_conntrack: per-netns net.netfilter.nf_conntrack_checksum sysctl
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:08 +02:00
Alexey Dobriyan
a71996fccc netfilter: netns nf_conntrack: pass conntrack to nf_conntrack_event_cache() not skb
This is cleaner, we already know conntrack to which event is relevant.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08 11:35:07 +02:00