Commit Graph

2415 Commits

Author SHA1 Message Date
David S. Miller d9993be65a Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-20 13:24:14 -08:00
David Stevens ad0081e43a ipv6: Fragment locally generated tunnel-mode IPSec6 packets as needed.
This patch modifies IPsec6 to fragment IPv6 packets that are
locally generated as needed.

This version of the patch only fragments in tunnel mode, so that fragment
headers will not be obscured by ESP in transport mode.

Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-19 20:22:23 -08:00
stephen hemminger d1ed113f16 ipv6: remove duplicate neigh_ifdown
When device is being set to down, neigh_ifdown was being called
twice. Once from addrconf notifier and once from ndisc notifier.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-18 22:01:17 -08:00
stephen hemminger bc3ef6605e ipv6: fib6_ifdown cleanup
Remove (unnecessary) casts to make code cleaner.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-18 22:01:16 -08:00
David S. Miller b4aa9e05a6 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/bnx2x/bnx2x.h
	drivers/net/wireless/iwlwifi/iwl-1000.c
	drivers/net/wireless/iwlwifi/iwl-6000.c
	drivers/net/wireless/iwlwifi/iwl-core.h
	drivers/vhost/vhost.c
2010-12-17 12:27:22 -08:00
stephen hemminger 29ba5fed1b ipv6: don't flush routes when setting loopback down
When loopback device is being brought down, then keep the route table
entries because they are special. The entries in the local table for
linklocal routes and ::1 address should not be purged.

This is a sub optimal solution to the problem and should be replaced
by a better fix in future.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16 18:26:26 -08:00
Octavian Purdila fcbdf09d96 net: fix nulls list corruptions in sk_prot_alloc
Special care is taken inside sk_port_alloc to avoid overwriting
skc_node/skc_nulls_node. We should also avoid overwriting
skc_bind_node/skc_portaddr_node.

The patch fixes the following crash:

 BUG: unable to handle kernel paging request at fffffffffffffff0
 IP: [<ffffffff812ec6dd>] udp4_lib_lookup2+0xad/0x370
 [<ffffffff812ecc22>] __udp4_lib_lookup+0x282/0x360
 [<ffffffff812ed63e>] __udp4_lib_rcv+0x31e/0x700
 [<ffffffff812bba45>] ? ip_local_deliver_finish+0x65/0x190
 [<ffffffff812bbbf8>] ? ip_local_deliver+0x88/0xa0
 [<ffffffff812eda35>] udp_rcv+0x15/0x20
 [<ffffffff812bba45>] ip_local_deliver_finish+0x65/0x190
 [<ffffffff812bbbf8>] ip_local_deliver+0x88/0xa0
 [<ffffffff812bb2cd>] ip_rcv_finish+0x32d/0x6f0
 [<ffffffff8128c14c>] ? netif_receive_skb+0x99c/0x11c0
 [<ffffffff812bb94b>] ip_rcv+0x2bb/0x350
 [<ffffffff8128c14c>] netif_receive_skb+0x99c/0x11c0

Signed-off-by: Leonard Crestez <lcrestez@ixiacom.com>
Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16 14:26:56 -08:00
Andrey Vagin d3052b557a ipv6: delete expired route in ip6_pmtu_deliver
The first big packets sent to a "low-MTU" client correctly
triggers the creation of a temporary route containing the reduced MTU.

But after the temporary route has expired, new ICMP6 "packet too big"
will be sent, rt6_pmtu_discovery will find the previous EXPIRED route
check that its mtu isn't bigger then in icmp packet and do nothing
before the temporary route will not deleted by gc.

I make the simple experiment:
while :; do
    time ( dd if=/dev/zero bs=10K count=1 | ssh hostname dd of=/dev/null ) || break;
done

The "time" reports real 0m0.197s if a temporary route isn't expired, but
it reports real 0m52.837s (!!!!) immediately after a temporare route has
expired.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16 12:28:13 -08:00
David S. Miller d33e455337 net: Abstract default MTU metric calculation behind an accessor.
Like RTAX_ADVMSS, make the default calculation go through a dst_ops
method rather than caching the computation in the routing cache
entries.

Now dst metrics are pretty much left as-is when new entries are
created, thus optimizing metric sharing becomes a real possibility.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-14 13:01:14 -08:00
David S. Miller 0dbaee3b37 net: Abstract default ADVMSS behind an accessor.
Make all RTAX_ADVMSS metric accesses go through a new helper function,
dst_metric_advmss().

Leave the actual default metric as "zero" in the real metric slot,
and compute the actual default value dynamically via a new dst_ops
AF specific callback.

For stacked IPSEC routes, we use the advmss of the path which
preserves existing behavior.

Unlike ipv4/ipv6, DecNET ties the advmss to the mtu and thus updates
advmss on pmtu updates.  This inconsistency in advmss handling
results in more raw metric accesses than I wish we ended up with.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-13 12:52:14 -08:00
David S. Miller a02e4b7dae ipv6: Demark default hoplimit as zero.
This is for consistency with ipv4.  Using "-1" makes
no sense.

It was made this way a long time ago merely to be consistent
with how the ipv6 socket hoplimit "default" is stored.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-12 21:39:02 -08:00
David S. Miller 5170ae824d net: Abstract RTAX_HOPLIMIT metric accesses behind helper.
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-12 21:35:57 -08:00
David S. Miller abbf46ae0e ipv6: Use ip6_dst_hoplimit() instead of direct dst_metric() calls.
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-12 21:14:46 -08:00
Tobias Klauser 376d940ee9 inet6: Remove redundant unlikely()
IS_ERR() already implies unlikely(), so it can be omitted here.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-10 14:57:34 -08:00
Martin Willi 040253c931 xfrm: Traffic Flow Confidentiality for IPv6 ESP
Add TFC padding to all packets smaller than the boundary configured
on the xfrm state. If the boundary is larger than the PMTU, limit
padding to the PMTU.

Signed-off-by: Martin Willi <martin@strongswan.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-10 14:43:59 -08:00
Jiri Pirko c07224005d net/ipv6/udp.c: fix typo in flush_stack()
skb1 should be passed as parameter to sk_rcvqueues_full() here.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-10 14:05:09 -08:00
David S. Miller 457de4383e ipv6: Fix 'release_it' logic in tcp_v6_get_peer()
We accidently set it to "true" for the case where we
are using a route bound peer.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-10 13:16:09 -08:00
Nicolas Dichtel 5f75a1042f ipv6: fix nl group when advertising a new link
New idev are advertised with NL group RTNLGRP_IPV6_IFADDR, but
should use RTNLGRP_IPV6_IFINFO.
Bug was introduced by commit 8d7a76c9.

Signed-off-by: Wang Xuefu <xuefu.wang@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Thomas Graf <tgraf@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-10 12:49:36 -08:00
Eric Dumazet 68835aba4d net: optimize INET input path further
Followup of commit b178bb3dfc (net: reorder struct sock fields)

Optimize INET input path a bit further, by :

1) moving sk_refcnt close to sk_lock.

This reduces number of dirtied cache lines by one on 64bit arches (and
64 bytes cache line size).

2) moving inet_daddr & inet_rcv_saddr at the beginning of sk

(same cache line than hash / family / bound_dev_if / nulls_node)

This reduces number of accessed cache lines in lookups by one, and dont
increase size of inet and timewait socks.
inet and tw sockets now share same place-holder for these fields.

Before patch :

offsetof(struct sock, sk_refcnt) = 0x10
offsetof(struct sock, sk_lock) = 0x40
offsetof(struct sock, sk_receive_queue) = 0x60
offsetof(struct inet_sock, inet_daddr) = 0x270
offsetof(struct inet_sock, inet_rcv_saddr) = 0x274

After patch :

offsetof(struct sock, sk_refcnt) = 0x44
offsetof(struct sock, sk_lock) = 0x48
offsetof(struct sock, sk_receive_queue) = 0x68
offsetof(struct inet_sock, inet_daddr) = 0x0
offsetof(struct inet_sock, inet_rcv_saddr) = 0x4

compute_score() (udp or tcp) now use a single cache line per ignored
item, instead of two.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-09 20:05:58 -08:00
David S. Miller defb3519a6 net: Abstract away all dst_entry metrics accesses.
Use helper functions to hide all direct accesses, especially writes,
to dst_entry metrics values.

This will allow us to:

1) More easily change how the metrics are stored.

2) Implement COW for metrics.

In particular this will help us put metrics into the inetpeer
cache if that is what we end up doing.  We can make the _metrics
member a pointer instead of an array, initially have it point
at the read-only metrics in the FIB, and then on the first set
grab an inetpeer entry and point the _metrics member there.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2010-12-09 10:46:36 -08:00
David S. Miller fe6c791570 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
	net/llc/af_llc.c
2010-12-08 13:47:38 -08:00
Shan Wei b672083ed3 ipv6: use ND_REACHABLE_TIME and ND_RETRANS_TIMER instead of magic number
ND_REACHABLE_TIME and ND_RETRANS_TIMER have defined
since v2.6.12-rc2, but never been used.
So use them instead of magic number.

This patch also changes original code style to read comfortably .

Thank YOSHIFUJI Hideaki for pointing it out.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-02 13:27:32 -08:00
David S. Miller db3949c450 tcp: Implement ipv6 ->get_peer() and ->tw_get_peer().
Now ipv6 timewait recycling is fully implemented and
enabled.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-02 12:14:37 -08:00
David S. Miller 493f377d6d tcp: Add timewait recycling bits to ipv6 connect code.
This will also improve handling of ipv6 tcp socket request
backlog when syncookies are not enabled.  When backlog
becomes very deep, last quarter of backlog is limited to
validated destinations.  Previously only ipv4 implemented
this logic, but now ipv6 does too.

Now we are only one step away from enabling timewait
recycling for ipv6, and that step is simply filling in
the implementation of tcp_v6_get_peer() and
tcp_v6_tw_get_peer().

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-02 12:14:29 -08:00
David S. Miller ae4694b2d3 ipv6: Create inet6_csk_route_req().
Brother of ipv4's inet_csk_route_req().

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-02 10:59:22 -08:00
David S. Miller ccb7c410dd timewait_sock: Create and use getpeer op.
The only thing AF-specific about remembering the timestamp
for a time-wait TCP socket is getting the peer.

Abstract that behind a new timewait_sock_ops vector.

Support for real IPV6 sockets is not filled in yet, but
curiously this makes timewait recycling start to work
for v4-mapped ipv6 sockets.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-01 18:09:13 -08:00
David McCullough 6dcdd1b369 net/ipv6/sit.c: return unhandled skb to tunnel4_rcv
I found a problem using an IPv6 over IPv4 tunnel.  When CONFIG_IPV6_SIT
was enabled, the packets would be rejected as net/ipv6/sit.c was catching
all IPPROTO_IPV6 packets and returning an ICMP port unreachable error.

I think this patch fixes the problem cleanly.  I believe the code in
net/ipv4/tunnel4.c:tunnel4_rcv takes care of it properly if none of the
handlers claim the skb.

Signed-off-by: David McCullough <david_mccullough@mcafee.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-01 13:19:34 -08:00
Anders Franzen 381601e5bb Make the ip6_tunnel reflect the true mtu.
The ip6_tunnel always assumes it consumes 40 bytes (ip6 hdr) of the mtu of the
underlaying device. So for a normal ethernet bearer, the mtu of the ip6_tunnel is
1460.
However, when creating a tunnel the encap limit option is enabled by default, and it
consumes 8 bytes more, so the true mtu shall be 1452.

I dont really know if this breaks some statement in some RFC, so this is a request for
comments.

Signed-off-by: Anders Franzen <anders.franzen@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-01 10:55:47 -08:00
David S. Miller 3f419d2d48 inet: Turn ->remember_stamp into ->get_peer in connection AF ops.
Then we can make a completely generic tcp_remember_stamp()
that uses ->get_peer() as a helper, minimizing the AF specific
code and minimizing the eventual code duplication when we implement
the ipv6 side of TW recycling.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-30 12:28:06 -08:00
David S. Miller b341936380 ipv6: Add infrastructure to bind inet_peer objects to routes.
They are only allowed on cached ipv6 routes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-30 12:27:11 -08:00
Jozsef Kadlecsik 82a39eb6b3 ipv6: Prepare the tree for un-inlined jhash.
jhash is widely used in the kernel and because the functions
are inlined, the cost in size is significant. Also, the new jhash
functions are slightly larger than the previous ones so better un-inline.
As a preparation step, the calls to the internal macros are replaced
with the plain jhash function calls.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-28 11:26:21 -08:00
Shan Wei d3c15cab21 ipv6: kill two unused macro definition
1. IPV6_TLV_TEL_DST_SIZE
This has not been using for several years since created.

2. RT6_INFO_LEN
commit 33120b30 kill all RT6_INFO_LEN's references, but only this definition remained.

commit 33120b30cc
Author: Alexey Dobriyan <adobriyan@sw.ru>
Date:   Tue Nov 6 05:27:11 2007 -0800

    [IPV6]: Convert /proc/net/ipv6_route to seq_file interface

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-28 10:47:17 -08:00
Thomas Graf cf7afbfeb8 rtnl: make link af-specific updates atomic
As David pointed out correctly, updates to af-specific attributes
are currently not atomic. If multiple changes are requested and
one of them fails, previous updates may have been applied already
leaving the link behind in a undefined state.

This patch splits the function parse_link_af() into two functions
validate_link_af() and set_link_at(). validate_link_af() is placed
to validate_linkmsg() check for errors as early as possible before
any changes to the link have been made. set_link_af() is called to
commit the changes later.

This method is not fail proof, while it is currently sufficient
to make set_link_af() inerrable and thus 100% atomic, the
validation function method will not be able to detect all error
scenarios in the future, there will likely always be errors
depending on states which are f.e. not protected by rtnl_mutex
and thus may change between validation and setting.

Also, instead of silently ignoring unknown address families and
config blocks for address families which did not register a set
function the errors EAFNOSUPPORT respectively EOPNOSUPPORT are
returned to avoid comitting 4 out of 5 update requests without
notifying the user.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-27 22:56:08 -08:00
Eric Dumazet 456b61bca8 ipv6: mcast: RCU conversion
ipv6_sk_mc_lock rwlock becomes a spinlock.

readers (inet6_mc_check()) now takes rcu_read_lock() instead of read
lock. Writers dont need to disable BH anymore.

struct ipv6_mc_socklist objects are reclaimed after one RCU grace
period.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-24 11:16:42 -08:00
Tracey Dent 4de58dfebe Net: ipv6: netfiliter: Makefile: Remove deprecated kbuild goal definitions
Changed Makefile to use <modules>-y instead of <modules>-objs
because -objs is deprecated and not mentioned in
Documentation/kbuild/makefiles.txt.

Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-22 08:16:12 -08:00
John Fastabend 88b2a9a3d9 ipv6: fix missing in6_ifa_put in addrconf
Fix ref count bug introduced by

commit 2de7957072
Author: Lorenzo Colitti <lorenzo@google.com>
Date:   Wed Oct 27 18:16:49 2010 +0000

ipv6: addrconf: don't remove address state on ifdown if the address
is being kept

Fix logic so that addrconf_ifdown() decrements the inet6_ifaddr
refcnt correctly with in6_ifa_put().

Reported-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-22 07:37:36 -08:00
David S. Miller 24912420e9 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/bonding/bond_main.c
	net/core/net-sysfs.c
	net/ipv6/addrconf.c
2010-11-19 13:13:47 -08:00
Thomas Graf 18a31e1e28 ipv6: Expose reachable and retrans timer values as msecs
Expose reachable and retrans timer values in msecs instead of jiffies.
Both timer values are already exposed as msecs in the neighbour table
netlink interface.

The creation timestamp format with increased precision is kept but
cleaned up.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18 12:08:36 -08:00
Thomas Graf 93908d1926 ipv6: Expose IFLA_PROTINFO timer values in msecs instead of jiffies
IFLA_PROTINFO exposes timer related per device settings in jiffies.
Change it to expose these values in msecs like the sysctl interface
does.

I did not find any users of IFLA_PROTINFO which rely on any of these
values and even if there are, they are likely already broken because
there is no way for them to reliably convert such a value to another
time format.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18 11:05:01 -08:00
Changli Gao 5811662b15 net: use the macros defined for the members of flowi
Use the macros defined for the members of flowi to clean the code up.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17 12:27:45 -08:00
Thomas Graf b382b191ea ipv6: AF_INET6 link address family
IPv6 already exposes some address family data via netlink in the
IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the
address family set to AF_INET6. We take over this format and
reuse all the code.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17 11:28:26 -08:00
Eric Dumazet c31504dc0d udp: use atomic_inc_not_zero_hint
UDP sockets refcount is usually 2, unless an incoming frame is going to
be queued in receive or backlog queue.

Using atomic_inc_not_zero_hint() permits to reduce latency, because
processor issues less memory transactions.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 11:17:43 -08:00
John Fastabend 9d82ca98f7 ipv6: fix missing in6_ifa_put in addrconf
Fix ref count bug introduced by

commit 2de7957072
Author: Lorenzo Colitti <lorenzo@google.com>
Date:   Wed Oct 27 18:16:49 2010 +0000

ipv6: addrconf: don't remove address state on ifdown if the address
is being kept

Fix logic so that addrconf_ifdown() decrements the inet6_ifaddr
refcnt correctly with in6_ifa_put().

Reported-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 09:24:58 -08:00
Joe Perches 8a22c99a80 net/ipv6/mcast.c: Remove unnecessary semicolons
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-15 11:07:16 -08:00
Ben Greear 4038565327 ipv6: Warn users if maximum number of routes is reached.
This gives users at least some clue as to what the problem
might be and how to go about fixing it.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-12 14:03:24 -08:00
Lorenzo Colitti 2de7957072 ipv6: addrconf: don't remove address state on ifdown if the address is being kept
Currently, addrconf_ifdown does not delete statically configured IPv6
addresses when the interface is brought down. The intent is that when
the interface comes back up the address will be usable again. However,
this doesn't actually work, because the system stops listening on the
corresponding solicited-node multicast address, so the address cannot
respond to neighbor solicitations and thus receive traffic. Also, the
code notifies the rest of the system that the address is being deleted
(e.g, RTM_DELADDR), even though it is not. Fix it so that none of this
state is updated if the address is being kept on the interface.

Tested: Added a statically configured IPv6 address to an interface,
started ping, brought link down, brought link up again. When link came
up ping kept on going and "ip -6 maddr" showed that the host was still
subscribed to there

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-12 13:44:24 -08:00
David S. Miller 7c13a0d9a1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 2010-11-12 11:04:26 -08:00
Shan Wei 22e091e525 netfilter: ipv6: fix overlap check for fragments
The type of FRAG6_CB(prev)->offset is int, skb->len is *unsigned* int,
and offset is int.

Without this patch, type conversion occurred to this expression, when
(FRAG6_CB(prev)->offset + prev->len) is less than offset.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-12 08:51:55 +01:00
Shan Wei f46421416f ipv6: fix overlap check for fragments
The type of FRAG6_CB(prev)->offset is int, skb->len is *unsigned* int,
and offset is int.

Without this patch, type conversion occurred to this expression, when
(FRAG6_CB(prev)->offset + prev->len) is less than offset.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-08 12:17:06 -08:00
Jan Engelhardt cccbe5ef85 netfilter: ip6_tables: fix information leak to userspace
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-03 18:55:39 -07:00