Commit graph

337 commits

Author SHA1 Message Date
Patrick McHardy
9afdb00c80 [NETFILTER]: nfnetlink_log: remove conditional locking
This is gross, have the wrapper function take the lock.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:42 -07:00
Michal Miroslaw
370e6a8789 [NETFILTER]: nfnetlink_log: micro-optimization: inst->skb != NULL in __nfulnl_send()
No other function calls __nfulnl_send() with inst->skb == NULL than
nfulnl_timer().

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:41 -07:00
Michal Miroslaw
f76cdcee5b [NETFILTER]: nfnetlink_log: iterator functions need iter_state * only
get_*() don't need access to seq_file - iter_state is enough for them.

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:40 -07:00
Michal Miroslaw
9a36e8c2b3 [NETFILTER]: nfnetlink_log: micro-optimization: don't modify destroyed instance
Simple micro-optimization: Don't change any options if the instance is
being destroyed.

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:39 -07:00
Michal Miroslaw
f414c16c04 [NETFILTER]: nfnetlink_log: micro-optimization for inst==NULL in nfulnl_recv_config()
Simple micro-optimization: don't call instance_put() on known NULL pointers.

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:38 -07:00
Michal Miroslaw
55b5a91e17 [NETFILTER]: nfnetlink_log: kill duplicate code
Kill some duplicate code in nfulnl_log_packet().

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:37 -07:00
Michal Miroslaw
09972d6f96 [NETFILTER]: nfnetlink_log: don't count max(a,b) twice
We don't need local nlbufsiz (skb size) as nfulnl_alloc_skb() takes
the maximum anyway.

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:36 -07:00
Patrick McHardy
1b53d9042c [NETFILTER]: Remove changelogs and CVS IDs
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:35 -07:00
Thomas Graf
c702e8047f [NETLINK]: Directly return -EINTR from netlink_dump_start()
Now that all users of netlink_dump_start() use netlink_run_queue()
to process the receive queue, it is possible to return -EINTR from
netlink_dump_start() directly, therefore simplying the callers.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:33 -07:00
Thomas Graf
1d00a4eb42 [NETLINK]: Remove error pointer from netlink message handler
The error pointer argument in netlink message handlers is used
to signal the special case where processing has to be interrupted
because a dump was started but no error happened. Instead it is
simpler and more clear to return -EINTR and have netlink_run_queue()
deal with getting the queue right.

nfnetlink passed on this error pointer to its subsystem handlers
but only uses it to signal the start of a netlink dump. Therefore
it can be removed there as well.

This patch also cleans up the error handling in the affected
message handlers to be consistent since it had to be touched anyway.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:27:30 -07:00
Arnaldo Carvalho de Melo
dc5fc579b9 [NETLINK]: Use nlmsg_trim() where appropriate
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:26:37 -07:00
Arnaldo Carvalho de Melo
27a884dc3c [SK_BUFF]: Convert skb->tail to sk_buff_data_t
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
on 64bit architectures, allowing us to combine the 4 bytes hole left by the
layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
:-)

Many calculations that previously required that skb->{transport,network,
mac}_header be first converted to a pointer now can be done directly, being
meaningful as offsets or pointers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:26:28 -07:00
Pablo Neira Ayuso
ac6d141dc7 [NETFILTER]: nfnetlink: parse attributes with nfattr_parse in nfnetlink_check_attribute
Use nfattr_parse to parse attributes, this patch also modifies the default
behaviour since unknown attributes will be ignored instead of returning
EINVAL. This ensure backward compatibility: new libraries with new
attributes and old kernels can work.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:58 -07:00
Pablo Neira Ayuso
c8e2078cfe [NETFILTER]: ctnetlink: add support for internal tcp connection tracking flags handling
This patch let userspace programs set the IP_CT_TCP_BE_LIBERAL flag to
force the pickup of established connections.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:57 -07:00
Willy Tarreau
5c8ce7c921 [NETFILTER]: TCP conntrack: factorize out the PUSH flag
The PUSH flag is accepted with every other valid combination.
Let's get it out of the tcp_valid_flags table and reduce the
number of combinations we have to handle. This does not
significantly reduce the table size however (8 bytes).

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:56 -07:00
Willy Tarreau
8f5bd99071 [NETFILTER]: TCP conntrack: accept RST|PSH as valid
This combination has been encountered on an IBM AS/400 in response
to packets sent to a closed session. There is no particular reason
to mark it invalid.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:56 -07:00
Sami Farin
9b88790972 [NETFILTER]: nf_conntrack: use jhash2 in __hash_conntrack
Now it uses jhash, but using jhash2 would be around 3-4 times faster
(on P4).

Signed-off-by: Sami Farin <safari-netfilter@safari.iki.fi>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:53 -07:00
Pablo Neira Ayuso
f4bc177f0f [NETFILTER]: nfnetlink: move EXPORT_SYMBOL declarations next to the exported symbol
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:51 -07:00
Pablo Neira Ayuso
8a2e89533a [NETFILTER]: nfnetlink: remove unused includes in nfnetlink.c
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:50 -07:00
Pablo Neira Ayuso
ac0f1d9894 [NETFILTER]: nfnetlink: remove unrequired check in nfnetlink_get_subsys
subsys_table is initialized to NULL, therefore just returns NULL in case
that it is not set.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:49 -07:00
Pablo Neira Ayuso
d9e6d02949 [NETFILTER]: nfnetlink: remove duplicate checks in nfnetlink_check_attributes
Remove nfnetlink_check_attributes duplicates message size and callback
id checks. nfnetlink_find_client and nfnetlink_rcv_msg already do
such checks.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:48 -07:00
Pablo Neira Ayuso
67ca396606 [NETFILTER]: nfnetlink: remove early debugging messages from nfnetlink
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:47 -07:00
Patrick McHardy
010c7d6f86 [NETFILTER]: nf_conntrack: uninline notifier registration functions
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:46 -07:00
Patrick McHardy
73c361862c [NETFILTER]: nfnetlink: use netlink_run_queue()
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:44 -07:00
Patrick McHardy
a3c5029cf7 [NETFILTER]: nfnetlink: use mutex instead of semaphore
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:43 -07:00
Patrick McHardy
c6a1e615d1 [NETFILTER]: nf_conntrack: simplify l4 protocol array allocation
The retrying after an allocation failure is not necessary anymore
since we're holding the mutex the entire time, for the same
reason the double allocation race can't happen anymore.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:43 -07:00
Patrick McHardy
0661cca9c2 [NETFILTER]: nf_conntrack: simplify protocol locking
Now that we don't use nf_conntrack_lock anymore but a single mutex for
all protocol handling, no need to release and grab it again for sysctl
registration.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:41 -07:00
Patrick McHardy
ac5357ebac [NETFILTER]: nf_conntrack: remove ugly hack in l4proto registration
Remove ugly special-casing of nf_conntrack_l4proto_generic, all it
wants is its sysctl tables registered, so do that explicitly in an
init function and move the remaining protocol initialization and
cleanup code to nf_conntrack_proto.c as well.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:40 -07:00
Patrick McHardy
b19caa0ca0 [NETFILTER]: nf_conntrack: switch protocol registration/unregistration to mutex
The protocol lookups done by nf_conntrack are already protected by RCU,
there is no need to keep taking nf_conntrack_lock for registration
and unregistration. Switch to a mutex.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:39 -07:00
Patrick McHardy
587aa64163 [NETFILTER]: Remove IPv4 only connection tracking/NAT
Remove the obsolete IPv4 only connection tracking/NAT as scheduled in
feature-removal-schedule.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:34 -07:00
Tobias Klauser
ce18afe57b [NETFILTER]: x_tables: remove duplicate of xt_prefix
Remove xt_proto_prefix array which duplicates xt_prefix and change all
users of xt_proto_prefix to xt_prefix.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:33 -07:00
Arnaldo Carvalho de Melo
0660e03f6b [SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h
Now the skb->nh union has just one member, .raw, i.e. it is just like the
skb->mac union, strange, no? I'm just leaving it like that till the transport
layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or
->mac_header_offset?), ditto for ->{h,nh}.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:14 -07:00
Arnaldo Carvalho de Melo
eddc9ec53b [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:10 -07:00
Arnaldo Carvalho de Melo
d56f90a7c9 [SK_BUFF]: Introduce skb_network_header()
For the places where we need a pointer to the network header, it is still legal
to touch skb->nh.raw directly if just adding to, subtracting from or setting it
to another layer header.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:59 -07:00
Arnaldo Carvalho de Melo
bbe735e424 [SK_BUFF]: Introduce skb_network_offset()
For the quite common 'skb->nh.raw - skb->data' sequence.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:58 -07:00
Arnaldo Carvalho de Melo
98e399f82a [SK_BUFF]: Introduce skb_mac_header()
For the places where we need a pointer to the mac header, it is still legal to
touch skb->mac.raw directly if just adding to, subtracting from or setting it
to another layer header.

This one also converts some more cases to skb_reset_mac_header() that my
regex missed as it had no spaces before nor after '=', ugh.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:41 -07:00
YOSHIFUJI Hideaki
8f05ce91c8 [NET] NETFILTER: Use htonl() where appropriate.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:23:59 -07:00
Eric Dumazet
b7aa0bf70c [NET]: convert network timestamps to ktime_t
We currently use a special structure (struct skb_timeval) and plain
'struct timeval' to store packet timestamps in sk_buffs and struct
sock.

This has some drawbacks :
- Fixed resolution of micro second.
- Waste of space on 64bit platforms where sizeof(struct timeval)=16

I suggest using ktime_t that is a nice abstraction of high resolution
time services, currently capable of nanosecond resolution.

As sizeof(ktime_t) is 8 bytes, using ktime_t in 'struct sock' permits
a 8 byte shrink of this structure on 64bit architectures. Some other
structures also benefit from this size reduction (struct ipq in
ipv4/ip_fragment.c, struct frag_queue in ipv6/reassembly.c, ...)

Once this ktime infrastructure adopted, we can more easily provide
nanosecond resolution on top of it. (ioctl SIOCGSTAMPNS and/or
SO_TIMESTAMPNS/SCM_TIMESTAMPNS)

Note : this patch includes a bug correction in
compat_sock_get_timestamp() where a "err = 0;" was missing (so this
syscall returned -ENOENT instead of 0)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
CC: Stephen Hemminger <shemminger@linux-foundation.org>
CC: John find <linux.kernel@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:23:34 -07:00
Stephen Hemminger
3927f2e8f9 [NET]: div64_64 consolidate (rev3)
Here is the current version of the 64 bit divide common code.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:23:33 -07:00
Patrick McHardy
ca8fbb859c [NETFILTER]: nf_conntrack_netlink: add missing dependency on NF_NAT
NF_CT_NETLINK=y, NF_NAT=m results in:

 LD      .tmp_vmlinux1
 net/built-in.o: dans la fonction « nfnetlink_parse_nat_proto »:
 nf_conntrack_netlink.c:(.text+0x28db9): référence indéfinie vers « nf_nat_proto_find_get »
 nf_conntrack_netlink.c:(.text+0x28dd6): référence indéfinie vers « nf_nat_proto_put »
 net/built-in.o: dans la fonction « ctnetlink_new_conntrack »:
 nf_conntrack_netlink.c:(.text+0x29959): référence indéfinie vers « nf_nat_setup_info »
 nf_conntrack_netlink.c:(.text+0x29b35): référence indéfinie vers « nf_nat_setup_info »
 nf_conntrack_netlink.c:(.text+0x29cf7): référence indéfinie vers « nf_nat_setup_info »
 nf_conntrack_netlink.c:(.text+0x29de2): référence indéfinie vers « nf_nat_setup_info »
 make: *** [.tmp_vmlinux1] Erreur 1 

Reported by Kevin Baradon <kevin.baradon@gmail.com>

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 12:29:57 -07:00
Patrick McHardy
ba5dcee128 [NETFILTER]: nfnetlink_log: fix crash on bridged packet
physoutdev is only set on purely bridged packet, when nfnetlink_log is used
in the OUTPUT/FORWARD/POSTROUTING hooks on packets forwarded from or to a
bridge it crashes when trying to dereference skb->nf_bridge->physoutdev.

Reported by Holger Eitzenberger <heitzenberger@astaro.com>

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-07 16:08:03 -08:00
Patrick McHardy
881dbfe8ac [NETFILTER]: nfnetlink_log: zero-terminate prefix
Userspace expects a zero-terminated string, so include the trailing
zero in the netlink message.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-07 16:08:02 -08:00
Michal Miroslaw
b4d6202b36 [NETFILTER]: nfnetlink_log: fix reference counting
Fix reference counting (memory leak) problem in __nfulnl_send() and callers
related to packet queueing.

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:26 -08:00
Patrick McHardy
7d90e86d31 [NETFILTER]: nfnetlink_log: fix module reference counting
Count module references correctly: after instance_destroy() there
might be timer pending and holding a reference for this netlink instance.

Based on patch by Michal Miroslaw <mirq-linux@rere.qmqm.pl>

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:25 -08:00
Michal Miroslaw
dd16704eba [NETFILTER]: nfnetlink_log: fix possible NULL pointer dereference
Eliminate possible NULL pointer dereference in nfulnl_recv_config().

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:24 -08:00
Michal Miroslaw
a497097d35 [NETFILTER]: nfnetlink_log: fix NULL pointer dereference
Fix the nasty NULL dereference on multiple packets per netlink message.

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000004
 printing eip:
f8a4b3bf
*pde = 00000000
Oops: 0002 [#1]
SMP
Modules linked in: nfnetlink_log ipt_ttl ipt_REDIRECT xt_tcpudp iptable_nat nf_nat nf_conntrack_ipv4 xt_state ipt_ipp2p xt_NFLOG xt_hashlimit ip6_tables iptable_filter xt_multiport xt_mark ipt_set iptable_raw xt_MARK iptable_mangle ip_tables cls_fw cls_u32 sch_esfq sch_htb ip_set_ipmap ip_set ipt_ULOG x_tables dm_snapshot dm_mirror loop e1000 parport_pc parport e100 floppy ide_cd cdrom
CPU:    0
EIP:    0060:[<f8a4b3bf>]    Not tainted VLI
EFLAGS: 00010206   (2.6.20 #5)
EIP is at __nfulnl_send+0x24/0x51 [nfnetlink_log]
eax: 00000000   ebx: f2b5cbc0   ecx: c03f5f54   edx: c03f4000
esi: f2b5cbc8   edi: c03f5f54   ebp: f8a4b3ec   esp: c03f5f30
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, ti=c03f4000 task=c03bece0 task.ti=c03f4000)
Stack: f2b5cbc0 f8a4b401 00000100 c0444080 c012af49 00000000 f6f19100 f6f19000
       c1707800 c03f5f54 c03f5f54 00000123 00000021 c03e8d08 c0426380 00000009
       c0126932 00000000 00000046 c03e9980 c03e6000 0047b007 c01269bd 00000000
Call Trace:
 [<f8a4b401>] nfulnl_timer+0x15/0x25 [nfnetlink_log]
 [<c012af49>] run_timer_softirq+0x10a/0x164
 [<c0126932>] __do_softirq+0x60/0xba
 [<c01269bd>] do_softirq+0x31/0x35
 [<c0104f6e>] do_IRQ+0x62/0x74
 [<c01036cb>] common_interrupt+0x23/0x28
 [<c0101018>] default_idle+0x0/0x3f
 [<c0101045>] default_idle+0x2d/0x3f
 [<c01010fa>] cpu_idle+0xa0/0xb9
 [<c03fb7f5>] start_kernel+0x1a8/0x1ac
 [<c03fb293>] unknown_bootoption+0x0/0x181
 =======================
Code: 5e 5f 5b 5e 5f 5d c3 53 89 c3 8d 40 1c 83 7b 1c 00 74 05 e8 2c ee 6d c7 83 7b 14 00 75 04 31 c0 eb 34 83 7b 10 01 76 09 8b 43 18 <66> c7 40 04 03 00 8b 53 34 8b 43 14 b9 40 00 00 00 e8 08 9a 84
EIP: [<f8a4b3bf>] __nfulnl_send+0x24/0x51 [nfnetlink_log] SS:ESP 0068:c03f5f30
 <0>Kernel panic - not syncing: Fatal exception in interrupt
 <0>Rebooting in 5 seconds..

Panic no more!

Signed-off-by: Micha Mirosaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:23 -08:00
Michal Miroslaw
05f7b7b369 [NETFILTER]: nfnetlink_log: fix use after free
Paranoia: instance_put() might have freed the inst pointer when we
spin_unlock_bh().

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:22 -08:00
Michal Miroslaw
ed32abeaf3 [NETFILTER]: nfnetlink_log: fix reference leak
Stop reference leaking in nfulnl_log_packet(). If we start a timer we
are already taking another reference.

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:21 -08:00
Patrick McHardy
d3ab4298aa [NETFILTER]: tcp conntrack: accept SYN|URG as valid
Some stacks apparently send packets with SYN|URG set. Linux accepts
these packets, so TCP conntrack should to.

Pointed out by Martijn Posthuma <posthuma@sangine.com>.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:20 -08:00
Patrick McHardy
e281db5cdf [NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs
The nf_conntrack_netlink config option is named CONFIG_NF_CT_NETLINK,
but multiple files use CONFIG_IP_NF_CONNTRACK_NETLINK or
CONFIG_NF_CONNTRACK_NETLINK for ifdefs.

Fix this and reformat all CONFIG_NF_CT_NETLINK ifdefs to only use a line.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:19 -08:00