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* ipv6: Plug sk_buff leak in ipv6_rcv (net/ipv6/ip6_input.c)Jesper Nilsson2009-03-271-3/+1
| | | | | | | | | | | | | | | | | | | | | Commit 778d80be52699596bf70e0eb0761cf5e1e46088d (ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface) seems to have introduced a leak of sk_buff's for ipv6 traffic, at least in some configurations where idev is NULL, or when ipv6 is disabled via sysctl. The problem is that if the first condition of the if-statement returns non-NULL, it returns an skb with only one reference, and when the other conditions apply, execution jumps to the "out" label, which does not call kfree_skb for it. To plug this leak, change to use the "drop" label instead. (this relies on it being ok to call kfree_skb on NULL) This also allows us to avoid calling rcu_read_unlock here, and removes the only user of the "out" label. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-03-263-22/+17
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
| * netfilter: nf_conntrack: calculate per-protocol nlattr sizeHolger Eitzenberger2009-03-252-0/+12
| | | | | | | | | | Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: {ip,ip6,arp}_tables: fix incorrect loop detectionPatrick McHardy2009-03-251-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit e1b4b9f ([NETFILTER]: {ip,ip6,arp}_tables: fix exponential worst-case search for loops) introduced a regression in the loop detection algorithm, causing sporadic incorrectly detected loops. When a chain has already been visited during the check, it is treated as having a standard target containing a RETURN verdict directly at the beginning in order to not check it again. The real target of the first rule is then incorrectly treated as STANDARD target and checked not to contain invalid verdicts. Fix by making sure the rule does actually contain a standard target. Based on patch by Francis Dupont <Francis_Dupont@isc.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: factorize ifname_compare()Eric Dumazet2009-03-251-21/+2
| | | | | | | | | | | | | | We use same not trivial helper function in four places. We can factorize it. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
* | ipv6: Fix conflict resolutions during ipv6 bindingVlad Yasevich2009-03-242-34/+28
| | | | | | | | | | | | | | | | | | | | The ipv6 version of bind_conflict code calls ipv6_rcv_saddr_equal() which at times wrongly identified intersections between addresses. It particularly broke down under a few instances and caused erroneous bind conflicts. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: Make v4-mapped bindings consistent with IPv4Vlad Yasevich2009-03-241-3/+11
| | | | | | | | | | | | | | | | | | | | Binding to a v4-mapped address on an AF_INET6 socket should produce the same result as binding to an IPv4 address on AF_INET socket. The two are interchangable as v4-mapped address is really a portability aid. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: Allow ipv4 wildcard binds after ipv6 address bindsVlad Yasevich2009-03-241-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The IPv4 wildcard (0.0.0.0) address does not intersect in any way with explicit IPv6 addresses. These two should be permitted, but the IPv4 conflict code checks the ipv6only bit as part of the test. Since binding to an explicit IPv6 address restricts the socket to only that IPv6 address, the side-effect is that the socket behaves as v6-only. By explicitely setting ipv6only in this case, allows the 2 binds to succeed. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: Disallow binding to v4-mapped address on v6-only socket.Vlad Yasevich2009-03-241-0/+7
| | | | | | | | | | | | | | | | | | A socket marked v6-only, can not receive or send traffic to v4-mapped addresses. Thus allowing binding to v4-mapped address on such a socket makes no sense. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | netfilter: trivial Kconfig spelling fixesJan Engelhardt2009-03-241-2/+2
| | | | | | | | | | | | | | Supplements commit 67c0d57930ff9a24c6c34abee1b01f7716a9b0e2. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-03-2413-240/+127
|\ \ | |/ | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
| * netfilter: auto-load ip6_queue module when socket openedScott James Remnant2009-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | The ip6_queue module is missing the net-pf-16-proto-13 alias that would cause it to be auto-loaded when a socket of that type is opened. This patch adds the alias. Signed-off-by: Scott James Remnant <scott@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: remove IPvX specific parts from nf_conntrack_l4proto.hChristoph Paasch2009-03-161-0/+1
| | | | | | | | | | | | Moving the structure definitions to the corresponding IPvX specific header files. Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: use a linked list of loggersEric Leblond2009-03-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch modifies nf_log to use a linked list of loggers for each protocol. This list of loggers is read and write protected with a mutex. This patch separates registration and binding. To be used as logging module, a module has to register calling nf_log_register() and to bind to a protocol it has to call nf_log_bind_pf(). This patch also converts the logging modules to the new API. For nfnetlink_log, it simply switchs call to register functions to call to bind function and adds a call to nf_log_register() during init. For other modules, it just remove a const flag from the logger structure and replace it with a __read_mostly. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: iptables: lock free countersStephen Hemminger2009-02-201-35/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The reader/writer lock in ip_tables is acquired in the critical path of processing packets and is one of the reasons just loading iptables can cause a 20% performance loss. The rwlock serves two functions: 1) it prevents changes to table state (xt_replace) while table is in use. This is now handled by doing rcu on the xt_table. When table is replaced, the new table(s) are put in and the old one table(s) are freed after RCU period. 2) it provides synchronization when accesing the counter values. This is now handled by swapping in new table_info entries for each cpu then summing the old values, and putting the result back onto one cpu. On a busy system it may cause sampling to occur at different times on each cpu, but no packet/byte counts are lost in the process. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Sucessfully tested on my dual quad core machine too, but iptables only (no ipv6 here) BTW, my new "tbench 8" result is 2450 MB/s, (it was 2150 MB/s not so long ago) Acked-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: ip6_tables: unfold two loops in ip6_packet_match()Eric Dumazet2009-02-191-12/+21
| | | | | | | | | | | | | | | | ip6_tables netfilter module can use an ifname_compare() helper so that two loops are unfolded. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: xtables: add backward-compat optionsJan Engelhardt2009-02-191-0/+18
| | | | | | | | | | | | | | | | Concern has been expressed about the changing Kconfig options. Provide the old options that forward-select. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: Combine ipt_ttl and ip6t_hl sourceJan Engelhardt2009-02-183-78/+0
| | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: Combine ipt_TTL and ip6t_HL sourceJan Engelhardt2009-02-183-113/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Suggested by: James King <t.james.king@gmail.com> Similarly to commit c9fd49680954714473d6cbd2546d6ff120f96840, merge TTL and HL. Since HL does not depend on any IPv6-specific function, no new module dependencies would arise. With slight adjustments to the Kconfig help text. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: log invalid new icmpv6 packet with nf_log_packet()Eric Leblond2009-02-181-0/+4
| | | | | | | | | | | | | | This patch adds a logging message for invalid new icmpv6 packet. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: x_tables: remove unneeded initializationsStephen Hemminger2009-02-184-4/+0
| | | | | | | | | | | | | | | | | | Later patches change the locking on xt_table and the initialization of the lock element is not needed since the lock is always initialized in xt_table_register anyway. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
* | net/*: use linux/kernel.h swap()Ilpo Järvinen2009-03-211-5/+2
| | | | | | | | | | | | | | | | | | tcp_sack_swap seems unnecessary so I pushed swap to the caller. Also removed comment that seemed then pointless, and added include when not already there. Compile tested. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-03-202-5/+4
|\ \ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/virtio_net.c
| * | netns: oops in ip[6]_frag_reasm incrementing statsJorge Boncompte [DTI2]2009-03-181-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev can be NULL in ip[6]_frag_reasm for skb's coming from RAW sockets. Quagga's OSPFD sends fragmented packets on a RAW socket, when netfilter conntrack reassembles them on the OUTPUT path you hit this code path. You can test it with something like "hping2 -0 -d 2000 -f AA.BB.CC.DD" With help from Jarek Poplawski. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ipv6: fix display of local and remote sit endpointsBjørn Mork2009-03-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the regressions cause by commit 1326c3d5a4b792a2b15877feb7fb691f8945d203 (v2.6.28-rc6-461-g23a12b1) broke the display of local and remote addresses of an SIT tunnel in iproute2. nt->parms is used by ipip6_tunnel_init() and therefore need to be initialized first. Tracked as http://bugzilla.kernel.org/show_bug.cgi?id=12868 Reported-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | ipv6: Fix incorrect disable_ipv6 behaviorBrian Haley2009-03-181-7/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the behavior of allowing both sysctl and addrconf_dad_failure() to set the disable_ipv6 parameter without any bad side-effects. If DAD fails and accept_dad > 1, we will still set disable_ipv6=1, but then instead of allowing an RA to add an address then immediately fail DAD, we simply don't allow the address to be added in the first place. This also lets the user set this flag and disable all IPv6 addresses on the interface, or on the entire system. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'master' of ↵David S. Miller2009-03-172-4/+7
|\ \ \ | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/igb/igb_main.c drivers/net/qlge/qlge_main.c drivers/net/wireless/ath9k/ath9k.h drivers/net/wireless/ath9k/core.h drivers/net/wireless/ath9k/hw.c
| * | Merge branch 'master' of ↵David S. Miller2009-03-171-4/+4
| |\ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
| | * | netfilter: conntrack: check for NEXTHDR_NONE before header sanity checkingChristoph Paasch2009-03-161-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NEXTHDR_NONE doesn't has an IPv6 option header, so the first check for the length will always fail and results in a confusing message "too short" if debugging enabled. With this patch, we check for NEXTHDR_NONE before length sanity checkings are done. Signed-off-by: Christoph Paasch <christoph.paasch@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * | | ipv6: Fix BUG when disabled ipv6 module is unloadedJohn Dykstra2009-03-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not try to "uninitialize" ipv6 if its initialization had been skipped because module parameter disable=1 had been specified. Reported-by: Thomas Backlund <tmb@mandriva.org> Signed-off-by: John Dykstra <john.dykstra1@gmail.com> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: convert usage of packet_type to read_mostlyStephen Hemminger2009-03-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Protocols that use packet_type can be __read_mostly section for better locality. Elminate any unnecessary initializations of NULL. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'master' of ↵David S. Miller2009-03-052-41/+33
|\ \ \ \ | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tokenring/tmspci.c drivers/net/ucc_geth_mii.c
| * | | IPv6: add "disable" module parameter support to ipv6.koBrian Haley2009-03-041-5/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add "disable" module parameter support to ipv6.ko by specifying "disable=1" on module load. We just do the minimum of initializing inetsw6[] so calls from other modules to inet6_register_protosw() won't OOPs, then bail out. No IPv6 addresses or sockets can be created as a result, and a reboot is required to enable IPv6. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | netns: fix addrconf_ifdown kernel panicDaniel Lezcano2009-03-031-30/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a network namespace is destroyed the network interfaces are all unregistered, making addrconf_ifdown called by the netdevice notifier. In the other hand, the addrconf exit method does a loop on the network devices and does addrconf_ifdown on each of them. But the ordering of the netns subsystem is not right because it uses the register_pernet_device instead of register_pernet_subsys. If we handle the loopback as any network device, we can safely use register_pernet_subsys. But if we use register_pernet_subsys, the addrconf exit method will do exactly what was already done with the unregistering of the network devices. So in definitive, this code is pointless. I removed the netns addrconf exit method and moved the code to the addrconf cleanup function. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | ipv6: Fix sysctl unregistration deadlockStephen Hemminger2009-03-031-6/+8
| | | | | | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'master' of ↵David S. Miller2009-03-011-2/+2
|\ \ \ \ | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-tx.c net/8021q/vlan_core.c net/core/dev.c
| * | | ipv6: don't use tw net when accounting for recycled twPavel Emelyanov2009-02-261-2/+2
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We already have a valid net in that place, but this is not just a cleanup - the tw pointer can be NULL there sometimes, thus causing an oops in NET_NS=y case. The same place in ipv4 code already works correctly using existing net, rather than tw's one. The bug exists since 2.6.27. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'master' of ↵David S. Miller2009-02-251-2/+3
|\ \ \ | |/ / | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/orinoco/orinoco.c
| * | netfilter: nf_conntrack_ipv6: fix nf_log_packet message in icmpv6 conntrackEric Leblond2009-02-181-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a trivial typo that was adding a new line at end of the nf_log_packet() prefix. It also make the logging conditionnal by adding a LOG_INVALID test. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net>
* | | sit: used time_before for comparing jiffiesWei Yongjun2009-02-241-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | The functions time_before is more robust for comparing jiffies against other values. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | ipv6: Remove some pointless conditionals before kfree_skb()Wei Yongjun2009-02-242-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove some pointless conditionals before kfree_skb(). The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression E; @@ - if (E) - kfree_skb(E); + kfree_skb(E); // </smpl> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | netlink: change nlmsg_notify() return value logicPablo Neira Ayuso2009-02-243-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the return value of nlmsg_notify() as follows: If NETLINK_BROADCAST_ERROR is set by any of the listeners and an error in the delivery happened, return the broadcast error; else if there are no listeners apart from the socket that requested a change with the echo flag, return the result of the unicast notification. Thus, with this patch, the unicast notification is handled in the same way of a broadcast listener that has set the NETLINK_BROADCAST_ERROR socket flag. This patch is useful in case that the caller of nlmsg_notify() wants to know the result of the delivery of a netlink notification (including the broadcast delivery) and take any action in case that the delivery failed. For example, ctnetlink can drop packets if the event delivery failed to provide reliable logging and state-synchronization at the cost of dropping packets. This patch also modifies the rtnetlink code to ignore the return value of rtnl_notify() in all callers. The function rtnl_notify() (before this patch) returned the error of the unicast notification which makes rtnl_set_sk_err() reports errors to all listeners. This is not of any help since the origin of the change (the socket that requested the echoing) notices the ENOBUFS error if the notification fails and should resync itself. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | ipv6: fix sparse warning: Using plain integer as NULL pointerHannes Eder2009-02-211-1/+1
| |/ |/| | | | | | | | | | | | | Fix this sparse warning: net/ipv6/xfrm6_state.c:72:26: warning: Using plain integer as NULL pointer Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-02-092-3/+24
|\ \ | |/ | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/gianfar.c
| * IPv6: fix to set device name when new IPv6 over IPv6 tunnel device is created.Noriaki TAKAMIYA2009-02-091-1/+1
| | | | | | | | | | | | | | | | | | When the user creates IPv6 over IPv6 tunnel, the device name created by the kernel isn't set to t->parm.name, which is referred as the result of ioctl(). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
| * netfilter: nf_conntrack_ipv6: don't track ICMPv6 negotiation messageEric Leblond2009-02-091-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | This patch removes connection tracking handling for ICMPv6 messages related to Stateless Address Autoconfiguration, MLD, and MLDv2. They can not be tracked because they are massively using multicast (on pre-defined address). But they are not invalid and should not be detected as such. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * netfilter: fix tuple inversion for Node information requestEric Leblond2009-02-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | The patch fixes a typo in the inverse mapping of Node Information request. Following draft-ietf-ipngwg-icmp-name-lookups-09, "Querier" sends a type 139 (ICMPV6_NI_QUERY) packet to "Responder" which answer with a type 140 (ICMPV6_NI_REPLY) packet. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-02-072-17/+58
|\ \ | |/ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-agn.c drivers/net/wireless/iwlwifi/iwl3945-base.c
| * ipv6: Disallow rediculious flowlabel option sizes.David S. Miller2009-02-061-2/+6
| | | | | | | | | | | | | | | | | | Just like PKTINFO, limit the options area to 64K. Based upon report by Eric Sesterhenn and analysis by Roland Dreier. Signed-off-by: David S. Miller <davem@davemloft.net>
| * ipv6: Copy cork options in ip6_append_dataHerbert Xu2009-02-051-15/+52
| | | | | | | | | | | | | | | | | | As the options passed to ip6_append_data may be ephemeral, we need to duplicate it for corking. This patch applies the simplest fix which is to memdup all the relevant bits. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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