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2012-03-06bridge: netfilter: don't call iptables on vlan packets if sysctl is offFlorian Westphal
When net.bridge.bridge-nf-filter-vlan-tagged is 0 (default), vlan packets arriving should not be sent to ip(6)tables by bridge netfilter. However, it turns out that we currently always send VLAN packets to netfilter, if .. a), CONFIG_VLAN_8021Q is enabled ; or b), CONFIG_VLAN_8021Q is not set but rx vlan offload is enabled on the bridge port. This is because bridge netfilter treats skb with skb->protocol == ETH_P_IP{V6} as "non-vlan packet". With rx vlan offload on or CONFIG_VLAN_8021Q=y, the vlan header has already been removed here, and we cannot rely on skb->protocol alone. Fix this by only using skb->protocol if the skb has no vlan tag, or if a vlan tag is present and filter-vlan-tagged bridge netfilter sysctl is enabled. We cannot remove the skb->protocol == htons(ETH_P_8021Q) test because the vlan tag is still around in the CONFIG_VLAN_8021Q=n && "ethtool -K $itf rxvlan off" case. reproducer: iptables -t raw -I PREROUTING -i br0 iptables -t raw -I PREROUTING -i br0.1 Then send packets to an ip address configured on br0.1 interface. Even with net.bridge.bridge-nf-filter-vlan-tagged=0, the 1st rule will match instead of the 2nd one. With this patch applied, the 2nd rule will match instead. In the non-local address case, netfilter won't be consulted after this patch unless the sysctl is switched on. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06netfilter: bridge: fix wrong pointer dereferencePablo Neira Ayuso
In adf7ff8, a invalid dereference was added in ebt_make_names. CC [M] net/bridge/netfilter/ebtables.o net/bridge/netfilter/ebtables.c: In function `ebt_make_names': net/bridge/netfilter/ebtables.c:1371:20: warning: `t' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06netfilter: ebtables: fix wrong name length while copying to user-spaceSantosh Nayak
user-space ebtables expects 32 bytes-long names, but xt_match names use 29 bytes. We have to copy less 29 bytes and then, make sure we fill the remaining bytes with zeroes. Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-05bridge: check return value of ipv6_dev_get_saddr()Ulrich Weber
otherwise source IPv6 address of ICMPV6_MGM_QUERY packet might be random junk if IPv6 is disabled on interface or link-local address is not yet ready (DAD). Signed-off-by: Ulrich Weber <ulrich.weber@sophos.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-04bridge: message age needs to increase, not decrease.Joakim Tjernlund
commit bridge: send proper message_age in config BPDU added this gem: bpdu.message_age = (jiffies - root->designated_age) p->designated_age = jiffies + bpdu->message_age; Notice how bpdu->message_age is negated when reassigned to bpdu.message_age. This causes message age to decrease breaking the STP protocol. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-04bridge: Adjust min age inc for HZ > 256Joakim Tjernlund
min age increment needs to round up its min age tick for all HZ values to guarantee message age is increasing. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-25netfilter: bridge: fix module autoload in compat caseFlorian Westphal
We expected 0 if module doesn't exist, which is no longer the case (42046e2e45c109ba703993c510401a11f716c8df, netfilter: x_tables: return -ENOENT for non-existant matches/targets). Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-01-17bridge: BH already disabled in br_fdb_cleanup()Eric Dumazet
br_fdb_cleanup() is run from timer interrupt, BH already masked. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Štefan Gula <steweg@gmail.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: net/bluetooth/l2cap_core.c Just two overlapping changes, one added an initialization of a local variable, and another change added a new local variable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-22net: introduce DST_NOPEER dst flagEric Dumazet
Chris Boot reported crashes occurring in ipv6_select_ident(). [ 461.457562] RIP: 0010:[<ffffffff812dde61>] [<ffffffff812dde61>] ipv6_select_ident+0x31/0xa7 [ 461.578229] Call Trace: [ 461.580742] <IRQ> [ 461.582870] [<ffffffff812efa7f>] ? udp6_ufo_fragment+0x124/0x1a2 [ 461.589054] [<ffffffff812dbfe0>] ? ipv6_gso_segment+0xc0/0x155 [ 461.595140] [<ffffffff812700c6>] ? skb_gso_segment+0x208/0x28b [ 461.601198] [<ffffffffa03f236b>] ? ipv6_confirm+0x146/0x15e [nf_conntrack_ipv6] [ 461.608786] [<ffffffff81291c4d>] ? nf_iterate+0x41/0x77 [ 461.614227] [<ffffffff81271d64>] ? dev_hard_start_xmit+0x357/0x543 [ 461.620659] [<ffffffff81291cf6>] ? nf_hook_slow+0x73/0x111 [ 461.626440] [<ffffffffa0379745>] ? br_parse_ip_options+0x19a/0x19a [bridge] [ 461.633581] [<ffffffff812722ff>] ? dev_queue_xmit+0x3af/0x459 [ 461.639577] [<ffffffffa03747d2>] ? br_dev_queue_push_xmit+0x72/0x76 [bridge] [ 461.646887] [<ffffffffa03791e3>] ? br_nf_post_routing+0x17d/0x18f [bridge] [ 461.653997] [<ffffffff81291c4d>] ? nf_iterate+0x41/0x77 [ 461.659473] [<ffffffffa0374760>] ? br_flood+0xfa/0xfa [bridge] [ 461.665485] [<ffffffff81291cf6>] ? nf_hook_slow+0x73/0x111 [ 461.671234] [<ffffffffa0374760>] ? br_flood+0xfa/0xfa [bridge] [ 461.677299] [<ffffffffa0379215>] ? nf_bridge_update_protocol+0x20/0x20 [bridge] [ 461.684891] [<ffffffffa03bb0e5>] ? nf_ct_zone+0xa/0x17 [nf_conntrack] [ 461.691520] [<ffffffffa0374760>] ? br_flood+0xfa/0xfa [bridge] [ 461.697572] [<ffffffffa0374812>] ? NF_HOOK.constprop.8+0x3c/0x56 [bridge] [ 461.704616] [<ffffffffa0379031>] ? nf_bridge_push_encap_header+0x1c/0x26 [bridge] [ 461.712329] [<ffffffffa037929f>] ? br_nf_forward_finish+0x8a/0x95 [bridge] [ 461.719490] [<ffffffffa037900a>] ? nf_bridge_pull_encap_header+0x1c/0x27 [bridge] [ 461.727223] [<ffffffffa0379974>] ? br_nf_forward_ip+0x1c0/0x1d4 [bridge] [ 461.734292] [<ffffffff81291c4d>] ? nf_iterate+0x41/0x77 [ 461.739758] [<ffffffffa03748cc>] ? __br_deliver+0xa0/0xa0 [bridge] [ 461.746203] [<ffffffff81291cf6>] ? nf_hook_slow+0x73/0x111 [ 461.751950] [<ffffffffa03748cc>] ? __br_deliver+0xa0/0xa0 [bridge] [ 461.758378] [<ffffffffa037533a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge] This is caused by bridge netfilter special dst_entry (fake_rtable), a special shared entry, where attaching an inetpeer makes no sense. Problem is present since commit 87c48fa3b46 (ipv6: make fragment identifications less predictable) Introduce DST_NOPEER dst flag and make sure ipv6_select_ident() and __ip_select_ident() fallback to the 'no peer attached' handling. Reported-by: Chris Boot <bootc@bootc.net> Tested-by: Chris Boot <bootc@bootc.net> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-22bridge: provide a mtu() method for fake_dst_opsEric Dumazet
Commit 618f9bc74a039da76 (net: Move mtu handling down to the protocol depended handlers) forgot the bridge netfilter case, adding a NULL dereference in ip_fragment(). Reported-by: Chris Boot <bootc@bootc.net> CC: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16net:bridge: use IS_ENABLEDIgor Maravić
Use IS_ENABLED(CONFIG_FOO) instead of defined(CONFIG_FOO) || defined (CONFIG_FOO_MODULE) Signed-off-by: Igor Maravić <igorm@etf.rs> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-11net: use IS_ENABLED(CONFIG_IPV6)Eric Dumazet
Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08bridge: add local MAC address to forwarding table (v2)stephen hemminger
If user has configured a MAC address that is not one of the existing ports of the bridge, then we need to add a special entry in the forwarding table. This forwarding table entry has no outgoing port so it has to be treated a little differently. The special entry is reported by the netlink interface with ifindex of bridge, but ignored by the old interface since there is no usable way to put it in the ABI. Reported-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08bridge: rearrange fdb notifications (v2)stephen hemminger
Pass bridge to fdb_notify so it can determine correct namespace based on namespace of bridge rather than namespace of destination port. Also makes next patch easier. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08bridge: refactor fdb_notifystephen hemminger
Move fdb_notify outside of fdb_create. This fixes the problem that notification of local entries are not flagged correctly. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-05net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}.David Miller
To reflect the fact that a refrence is not obtained to the resulting neighbour entry. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Roland Dreier <roland@purestorage.com>
2011-12-03ipv6: Add fragment reporting to ipv6_skip_exthdr().Jesse Gross
While parsing through IPv6 extension headers, fragment headers are skipped making them invisible to the caller. This reports the fragment offset of the last header in order to make it possible to determine whether the packet is fragmented and, if so whether it is a first or last fragment. Signed-off-by: Jesse Gross <jesse@nicira.com>
2011-12-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2011-12-01bridge: master device stuck in no-carrier state forever when in user-stp modeVitalii Demianets
When in user-stp mode, bridge master do not follow state of its slaves, so after the following sequence of events it can stuck forever in no-carrier state: 1) turn stp off 2) put all slaves down - master device will follow their state and also go in no-carrier state 3) turn stp on with bridge-stp script returning 0 (go to the user-stp mode) Now bridge master won't follow slaves' state and will never reach running state. This patch solves the problem by making user-stp and kernel-stp behavior similar regarding master following slaves' states. Signed-off-by: Vitalii Demianets <vitas@nppfactor.kiev.ua> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-22net: remove ipv6_addr_copy()Alexey Dobriyan
C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
The forcedeth changes had a conflict with the conversion over to atomic u64 statistics in net-next. The libertas cfg.c code had a conflict with the bss reference counting fix by John Linville in net-next. Conflicts: drivers/net/ethernet/nvidia/forcedeth.c drivers/net/wireless/libertas/cfg.c
2011-11-16net: remove NETIF_F_NO_CSUM feature bitMichał Mirosław
Only distinct use is checking if NETIF_F_NOCACHE_COPY should be enabled by default. The check heuristics is altered a bit here, so it hits other people than before. The default shouldn't be trusted for performance-critical cases anyway. For all other uses NETIF_F_NO_CSUM is equivalent to NETIF_F_HW_CSUM. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16net: introduce and use netdev_features_t for device features setsMichał Mirosław
v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16bridge: correct IPv6 checksum after pullstephen hemminger
Bridge multicast snooping of ICMPv6 would incorrectly report a checksum problem when used with Ethernet devices like sky2 that use CHECKSUM_COMPLETE. When bytes are removed from skb, the computed checksum needs to be adjusted. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Martin Volf <martin.volf.42@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14bridge: add NTF_USE supportstephen hemminger
More changes to the recent code to support control of forwarding database via netlink. * Support NTF_USE like neighbour table * Validate state bits from application * Only send notifications (and change bits) if new entry is different. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14bridge: Fix potential deadlock on br->multicast_lockAndrey Vagin
multicast_lock is taken in softirq context, so we should use spin_lock_bh() in userspace. call-chain in softirq context: run_timer_softirq() br_multicast_query_expired() call-chain in userspace: sysfs_write_file() store_multicast_snooping() br_multicast_toggle() Signed-off-by: Andrew Vagin <avagin@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-01netfilter: Remove unnecessary OOM logging messagesJoe Perches
Site specific OOM messages are duplications of a generic MM out of memory message and aren't really useful, so just delete them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-10-31net: fix implicit kmod.h usage in bridge/br_stp_if.cPaul Gortmaker
To fix this, once the implicit presence of module.h is removed: net/bridge/br_stp_if.c: In function ‘br_stp_start’: net/bridge/br_stp_if.c:131: error: implicit declaration of function ‘call_usermodehelper’ net/bridge/br_stp_if.c:131: error: ‘UMH_WAIT_PROC’ undeclared (first use in this function) Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modulesPaul Gortmaker
These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-24Merge branch 'master' of ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2011-10-18bridge: fix hang on removal of bridge via netlinkstephen hemminger
Need to cleanup bridge device timers and ports when being bridge device is being removed via netlink. This fixes the problem of observed when doing: ip link add br0 type bridge ip link set dev eth1 master br0 ip link set br0 up ip link del br0 which would cause br0 to hang in unregister_netdev because of leftover reference count. Reported-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-07Merge branch 'master' of github.com:davem330/netDavid S. Miller
Conflicts: net/batman-adv/soft-interface.c
2011-10-06bridge: allow forwarding some link local framesstephen hemminger
This is based on an earlier patch by Nick Carter with comments by David Lamparter but with some refinements. Thanks for their patience this is a confusing area with overlap of standards, user requirements, and compatibility with earlier releases. It adds a new sysfs attribute /sys/class/net/brX/bridge/group_fwd_mask that controls forwarding of frames with address of: 01-80-C2-00-00-0X The default setting has no forwarding to retain compatibility. One change from earlier releases is that forwarding of group addresses is not dependent on STP being enabled or disabled. This choice was made based on interpretation of tie 802.1 standards. I expect complaints will arise because of this, but better to follow the standard than continue acting incorrectly by default. The filtering mask is writeable, but only values that don't forward known control frames are allowed. It intentionally blocks attempts to filter control protocols. For example: writing a 8 allows forwarding 802.1X PAE addresses which is the most common request. Reported-by: David Lamparter <equinox@diac24.net> Original-patch-by: Nick Carter <ncarter100@gmail.com> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Benjamin Poirier <benjamin.poirier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-06bridge: leave carrier on for empty bridgestephen hemminger
This resolves a regression seen by some users of bridging. Some users use the bridge like a dummy device. They expect to be able to put an IPv6 address on the device with no ports attached. Although there are better ways of doing this, there is no reason to not allow it. Note: the bridge still will reflect the state of ports in the bridge if there are any added. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-03bridge: allow updating existing fdb entriesstephen hemminger
Need to allow application to update existing fdb entries that already exist. This makes bridge netlink neighbor API have same flags and semantics as ip neighbor table. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-03bridge: fix ordering of NEWLINK and NEWNEIGH eventsstephen hemminger
When port is added to a bridge, the old code would send the new neighbor netlink message before the subsequent new link message. This bug makes it difficult to use the monitoring API in an application. This code changes the ordering to add the forwarding entry after the port is setup. One of the error checks (for invalid address) is moved earlier in the process to avoid having to do unwind. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-22Merge branch 'master' of github.com:davem330/netDavid S. Miller
Conflicts: MAINTAINERS drivers/net/Kconfig drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c drivers/net/ethernet/broadcom/tg3.c drivers/net/wireless/iwlwifi/iwl-pci.c drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c drivers/net/wireless/rt2x00/rt2800usb.c drivers/net/wireless/wl12xx/main.c
2011-09-15net: consolidate and fix ethtool_ops->get_settings callingJiri Pirko
This patch does several things: - introduces __ethtool_get_settings which is called from ethtool code and from drivers as well. Put ASSERT_RTNL there. - dev_ethtool_get_settings() is replaced by __ethtool_get_settings() - changes calling in drivers so rtnl locking is respected. In iboe_get_rate was previously ->get_settings() called unlocked. This fixes it. Also prb_calc_retire_blk_tmo() in af_packet.c had the same problem. Also fixed by calling __dev_get_by_index() instead of dev_get_by_index() and holding rtnl_lock for both calls. - introduces rtnl_lock in bnx2fc_vport_create() and fcoe_vport_create() so bnx2fc_if_create() and fcoe_if_create() are called locked as they are from other places. - use __ethtool_get_settings() in bonding code Signed-off-by: Jiri Pirko <jpirko@redhat.com> v2->v3: -removed dev_ethtool_get_settings() -added ASSERT_RTNL into __ethtool_get_settings() -prb_calc_retire_blk_tmo - use __dev_get_by_index() and lock around it and __ethtool_get_settings() call v1->v2: add missing export_symbol Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> [except FCoE bits] Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15br: remove redundant check and initJiri Pirko
Since these checks and initialization are done in dev_ethtool_get_settings called later on, remove this redundancy. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2011-08-24bridge: fix a possible use after freeEric Dumazet
br_multicast_ipv6_rcv() can call pskb_trim_rcsum() and therefore skb head can be reallocated. Cache icmp6_type field instead of dereferencing twice the struct icmp6hdr pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24bridge: Pseudo-header required for the checksum of ICMPv6Yan, Zheng
Checksum of ICMPv6 is not properly computed because the pseudo header is not used. Thus, the MLD packet gets dropped by the bridge. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Reported-by: Ang Way Chuang <wcang@sfc.wide.ad.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-22bridge: fix a possible net_device leakEric Dumazet
Jan Beulich reported a possible net_device leak in bridge code after commit bb900b27a2f4 (bridge: allow creating bridge devices with netlink) Reported-by: Jan Beulich <JBeulich@novell.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-20Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2011-08-17net: remove use of ndo_set_multicast_list in driversJiri Pirko
replace it by ndo_set_rx_mode Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-11net/bridge/netfilter/ebtables.c: use available error handling codeJulia Lawall
Free the locally allocated table and newinfo as done in adjacent error handling code. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-09Bridge: Always send NETDEV_CHANGEADDR up on br MAC change.Andrei Warkentin
This ensures the neighbor entries associated with the bridge dev are flushed, also invalidating the associated cached L2 headers. This means we br_add_if/br_del_if ports to implement hand-over and not wind up with bridge packets going out with stale MAC. This means we can also change MAC of port device and also not wind up with bridge packets going out with stale MAC. This builds on Stephen Hemminger's patch, also handling the br_del_if case and the port MAC change case. Cc: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Andrei Warkentin <andreiw@motorola.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTERStephen Hemminger
When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // </smpl> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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