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2008-08-03ipv6: syncookies: free reqsk on xfrm_lookup errorFlorian Westphal
cookie_v6_check() did not call reqsk_free() if xfrm_lookup() fails, leaking the request sock. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-31tcp: MD5: Fix IPv6 signaturesAdam Langley
Reported by Stefanos Harhalakis; although 2.6.27-rc1 talks to itself using IPv6 TCP MD5 packets just fine, Stefanos noted that tcpdump claimed that the signatures were invalid. I broke this in 49a72dfb8814c2d65bd9f8c9c6daf6395a1ec58d ("tcp: Fix MD5 signatures for non-linear skbs"), it was just a typo. Note that tcpdump will still sometimes claim that the signatures are incorrect. A patch to tcpdump has been submitted for this[1]. [1] http://tinyurl.com/6a4fl2 Signed-off-by: Adam Langley <agl@imperialviolet.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-31tcp: MD5: Fix MD5 signatures on certain ACK packetsAdam Langley
I noticed, looking at tcpdumps, that timewait ACKs were getting sent with an incorrect MD5 signature when signatures were enabled. I broke this in 49a72dfb8814c2d65bd9f8c9c6daf6395a1ec58d ("tcp: Fix MD5 signatures for non-linear skbs"). I didn't take into account that the skb passed to tcp_*_send_ack was the inbound packet, thus the source and dest addresses need to be swapped when calculating the MD5 pseudoheader. Signed-off-by: Adam Langley <agl@imperialviolet.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-31ipv6: Fix ip6_xmit to send fragments if ipfragok is trueWei Yongjun
SCTP used ip6_xmit() to send fragments after received ICMP packet too big message. But while send packet used ip6_xmit, the skb->local_df is not initialized. So when skb if enter ip6_fragment(), the following code will discard the skb. ip6_fragment(...) { if (!skb->local_df) { ... return -EMSGSIZE; } ... } SCTP do the following step: 1. send packet ip6_xmit(skb, ipfragok=0) 2. received ICMP packet too big message 3. if PMTUD_ENABLE: ip6_xmit(skb, ipfragok=1) This patch fixed the problem by set local_df if ipfragok is true. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-30ipv6: Fix useless proc net sockstat6 removalDaniel Lezcano
This call is no longer needed, sockstat6 is per namespace so it is removed at the namespace subsystem destruction. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-30tcp: MD5: Use MIB counter instead of warning for MD5 mismatch.David S. Miller
From a report by Matti Aarnio, and preliminary patch by Adam Langley. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-29IPv6: datagram_send_ctl() should exit immediately when an error occuredMiao Xie
When an error occured, datagram_send_ctl() should exit immediately rather than continue to run the for loop. Otherwise, the variable err might be changed and the error might be hidden. Fix this bug by using "goto" instead of "break". Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-27net: missing bits of net-namespace / sysctlAl Viro
Piss-poor sysctl registration API strikes again, film at 11... What we really need is _pathname_ required to be present in already registered table, so that kernel could warn about bad order. That's the next target for sysctl stuff (and generally saner and more explicit order of initialization of ipv[46] internals wouldn't hurt either). For the time being, here are full fixups required by ..._rotable() stuff; we make per-net sysctl sets descendents of "ro" one and make sure that sufficient skeleton is there before we start registering per-net sysctls. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-27Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2008-07-27ipcomp: Fix warnings after ipcomp consolidation.David S. Miller
net/ipv4/ipcomp.c: In function ‘ipcomp4_init_state’: net/ipv4/ipcomp.c:109: warning: unused variable ‘calg_desc’ net/ipv4/ipcomp.c:108: warning: unused variable ‘ipcd’ net/ipv4/ipcomp.c:107: warning: ‘err’ may be used uninitialized in this function net/ipv6/ipcomp6.c: In function ‘ipcomp6_init_state’: net/ipv6/ipcomp6.c:139: warning: unused variable ‘calg_desc’ net/ipv6/ipcomp6.c:138: warning: unused variable ‘ipcd’ net/ipv6/ipcomp6.c:137: warning: ‘err’ may be used uninitialized in this function Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: netns: fix ip_rt_frag_needed rt_is_expired netfilter: nf_conntrack_extend: avoid unnecessary "ct->ext" dereferences netfilter: fix double-free and use-after free netfilter: arptables in netns for real netfilter: ip{,6}tables_security: fix future section mismatch selinux: use nf_register_hooks() netfilter: ebtables: use nf_register_hooks() Revert "pkt_sched: sch_sfq: dump a real number of flows" qeth: use dev->ml_priv instead of dev->priv syncookies: Make sure ECN is disabled net: drop unused BUG_TRAP() net: convert BUG_TRAP to generic WARN_ON drivers/net: convert BUG_TRAP to generic WARN_ON
2008-07-26netfilter: ip{,6}tables_security: fix future section mismatchAlexey Dobriyan
Currently not visible, because NET_NS is mutually exclusive with SYSFS which is required by SECURITY. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-26syncookies: Make sure ECN is disabledFlorian Westphal
ecn_ok is not initialized when a connection is established by cookies. The cookie syn-ack never sets ECN, so ecn_ok must be set to 0. Spotted using ns-3/network simulation cradle simulator and valgrind. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-25net: convert BUG_TRAP to generic WARN_ONIlpo Järvinen
Removes legacy reinvent-the-wheel type thing. The generic machinery integrates much better to automated debugging aids such as kerneloops.org (and others), and is unambiguous due to better naming. Non-intuively BUG_TRAP() is actually equal to WARN_ON() rather than BUG_ON() though some might actually be promoted to BUG_ON() but I left that to future. I could make at least one BUILD_BUG_ON conversion. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: ipsec: ipcomp - Decompress into frags if necessary ipsec: ipcomp - Merge IPComp implementations pkt_sched: Fix locking in shutdown_scheduler_queue()
2008-07-25list_for_each_rcu must die: networkingPaul E. McKenney
All uses of list_for_each_rcu() can be profitably replaced by the easier-to-use list_for_each_entry_rcu(). This patch makes this change for networking, in preparation for removing the list_for_each_rcu() API entirely. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25ipsec: ipcomp - Merge IPComp implementationsHerbert Xu
This patch merges the IPv4/IPv6 IPComp implementations since most of the code is identical. As a result future enhancements will no longer need to be duplicated. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-23netfilter: make security table depend on NETFILTER_ADVANCEDPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22ipv6: icmp6_dst_gc return changeStephen Hemminger
Change icmp6_dst_gc to return the one value the caller cares about rather than using call by reference. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22ipv6: use kcallocStephen Hemminger
Th fib_table_hash is an array, so use kcalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22ipv6: use spin_trylock_bhStephen Hemminger
Now there is spin_trylock_bh, use it rather than open coding. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22ipv6: use round_jiffiesStephen Hemminger
This timer normally happens once a minute, there is no need to cause an early wakeup for it, so align it to next second boundary to safe power. It can't be deferred because then it could take too long on cleanup or DoS. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22netns: dont alloc ipv6 fib timer listStephen Hemminger
FIB timer list is a trivial size structure, avoid indirection and just put it in existing ns. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22ipv6: make struct ipv6_devconf staticAdrian Bunk
struct ipv6_devconf can now become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-21ipv6: use timer pendingStephen Hemminger
This fixes the bridge reference count problem and cleanups ipv6 FIB timer management. Don't use expires field, because it is not a proper way to test, instead use timer_pending(). Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-20ipv6: Fix warning in addrconf code.David Miller
Reported by Linus. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-19ipv6 mcast: Omit redundant address family checks in ip6_mc_source().YOSHIFUJI Hideaki
The caller has alredy checked for them. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19ipv6 netns: Make several "global" sysctl variables namespace aware.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19netns: Use net_eq() to compare net-namespaces for optimization.YOSHIFUJI Hideaki
Without CONFIG_NET_NS, namespace is always &init_net. Compiler will be able to omit namespace comparisons with this patch. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19ipv6: remove unused parameter from ip6_ra_controlDenis V. Lunev
Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19tcp: Fix MD5 signatures for non-linear skbsAdam Langley
Currently, the MD5 code assumes that the SKBs are linear and, in the case that they aren't, happily goes off and hashes off the end of the SKB and into random memory. Reported by Stephen Hemminger in [1]. Advice thanks to Stephen and Evgeniy Polyakov. Also includes a couple of missed route_caps from Stephen's patch in [2]. [1] http://marc.info/?l=linux-netdev&m=121445989106145&w=2 [2] http://marc.info/?l=linux-netdev&m=121459157816964&w=2 Signed-off-by: Adam Langley <agl@imperialviolet.org> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18proc: consolidate per-net single-release callersPavel Emelyanov
They are symmetrical to single_open ones :) Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18proc: consolidate per-net single_open callersPavel Emelyanov
There are already 7 of them - time to kill some duplicate code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-16mib: add net to NET_INC_STATS_BHPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-16inet: prepare net on the stack for NET accounting macrosPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-16mib: add net to TCP_INC_STATS_BHPavel Emelyanov
Same as before - the sock is always there to get the net from, but there are also some places with the net already saved on the stack. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-16inet: prepare struct net for TCP MIB accountingPavel Emelyanov
This is the same as the first patch in the set, but preparing the net for TCP_XXX_STATS - save the struct net on the stack where required and possible. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14ipv6: Fix using after dev_put()Wang Chen
Patrick McHardy pointed it out. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14ipv6: Check return of dev_set_allmultiWang Chen
allmulti might overflow. Commit: "netdevice: Fix promiscuity and allmulti overflow" in net-next makes dev_set_promiscuity/allmulti return error number if overflow happened. Here, we check the positive increment for allmulti to get error return. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/netfilter/nf_conntrack_proto_tcp.c
2008-07-10ipv6: missed namespace context in ipv6_rthdr_rcvDenis V. Lunev
Signed-off-by: Denis V. Lunev <den@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08pkt_sched: Add qdisc_tx_is_noop() helper and use in IPV6.David S. Miller
This indicates if the NOOP scheduler is what is active for TX on a given device. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08netdev: Move rest of qdisc state into struct netdev_queueDavid S. Miller
Now qdisc, qdisc_sleeping, and qdisc_list also live there. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-3945.c net/mac80211/mlme.c
2008-07-08ipv6: fix race between ipv6_del_addr and DAD timerAndrey Vagin
Consider the following scenario: ipv6_del_addr(ifp) ipv6_ifa_notify(RTM_DELADDR, ifp) ip6_del_rt(ifp->rt) after returning from the ipv6_ifa_notify and enabling BH-s back, but *before* calling the addrconf_del_timer the ifp->timer fires and: addrconf_dad_timer(ifp) addrconf_dad_completed(ifp) ipv6_ifa_notify(RTM_NEWADDR, ifp) ip6_ins_rt(ifp->rt) then return back to the ipv6_del_addr and: in6_ifa_put(ifp) inet6_ifa_finish_destroy(ifp) dst_release(&ifp->rt->u.dst) After this we have an ifp->rt inserted into fib6 lists, but queued for gc, which in turn can result in oopses in the fib6_run_gc. Maybe some other nasty things, but we caught only the oops in gc so far. The solution is to disarm the ifp->timer before flushing the rt from it. Signed-off-by: Andrey Vagin <avagin@parallels.com> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08netfilter: ip6table_filter in netns for realAlexey Dobriyan
One still needs to remove checks in nf_hook_slow() and nf_sockopt_find() to test this, though. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08netfilter: use correct namespace in ip6table_securityAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@parallels.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-05MIB: add struct net to UDP6_INC_STATS_BHPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-05MIB: add struct net to UDP6_INC_STATS_USERPavel Emelyanov
As simple as the patch #1 in this set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-03ipv4,ipv6 mroute: Add some helper inline functions to remove ugly ifdefs.YOSHIFUJI Hideaki
ip{,v6}_mroute_{set,get}sockopt() should not matter by optimization but it would be better not to depend on optimization semantically. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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