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2011-04-29ipv4, ipv6, bonding: Restore control over number of peer notificationsBen Hutchings2-2/+0
For backward compatibility, we should retain the module parameters and sysfs attributes to control the number of peer notifications (gratuitous ARPs and unsolicited NAs) sent after bonding failover. Also, it is possible for failover to take place even though the new active slave does not have link up, and in that case the peer notification should be deferred until it does. Change ipv4 and ipv6 so they do not automatically send peer notifications on bonding failover. Change the bonding driver to send separate NETDEV_NOTIFY_PEERS notifications when the link is up, as many times as requested. Since it does not directly control which protocols send notifications, make num_grat_arp and num_unsol_na aliases for a single parameter. Bump the bonding version number and update its documentation. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29pktgen: create num frags requestedamit salecha1-26/+9
Pktgen doesn't generate number of frags requested. Divide packet size by number of frags and fill that in every frags. Example: With packet size 1470, it generate only 11 frags. Initial frags get lenght 706, 353, 177....so on. Last frag get divided by 2. Now with this fix, each frags will get 78 bytes. Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29bpf: depends on MODULESEric Dumazet1-0/+1
module_alloc() and module_free() are available only if CONFIG_MODULES=y Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Get route daddr from flow key in l2tp_ip_connect().David S. Miller1-1/+1
Now that output route lookups update the flow with destination address selection, we can fetch it from fl4->daddr instead of rt->rt_dst Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Get route daddr from flow key in tcp_v4_connect().David S. Miller1-2/+2
Now that output route lookups update the flow with destination address selection, we can fetch it from fl4->daddr instead of rt->rt_dst Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Get route daddr from flow key in inet_csk_route_req().David S. Miller1-1/+1
Now that output route lookups update the flow with destination address selection, we can fetch it from fl4->daddr instead of rt->rt_dst Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Get route daddr from flow key in ip4_datagram_connect().David S. Miller1-1/+1
Now that output route lookups update the flow with destination address selection, we can fetch it from fl4->daddr instead of rt->rt_dst Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Get route daddr from flow key in dccp_v4_connect().David S. Miller1-1/+1
Now that output route lookups update the flow with destination address selection, we can fetch it from fl4->daddr instead of rt->rt_dst Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Fetch route saddr from flow key in l2tp_ip_connect().David S. Miller1-2/+2
Now that output route lookups update the flow with source address selection, we can fetch it from fl4->saddr instead of rt->rt_src Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Fetch route saddr from flow key in tcp_v4_connect().David S. Miller1-1/+1
Now that output route lookups update the flow with source address selection, we can fetch it from fl4->saddr instead of rt->rt_src Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Fetch route saddr from flow key in ip4_datagram_connect().David S. Miller1-2/+2
Now that output route lookups update the flow with source address selection, we can fetch it from fl4->saddr instead of rt->rt_src Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Fetch route saddr from flow key in inet_sk_reselect_saddr().David S. Miller1-1/+1
Now that output route lookups update the flow with source address selection, we can fetch it from fl4->saddr instead of rt->rt_src Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Use caller's on-stack flowi as-is in output route lookups.David S. Miller1-78/+80
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28net: Use non-zero allocations in dst_alloc().David S. Miller5-35/+74
Make dst_alloc() and it's users explicitly initialize the entire entry. The zero'ing done by kmem_cache_zalloc() was almost entirely redundant. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28net: Make dst_alloc() take more explicit initializations.David S. Miller5-60/+42
Now the dst->dev, dev->obsolete, and dst->flags values can be specified as well. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28l2tp: Fix inet_opt conversion.David S. Miller1-2/+4
We don't actually hold the socket lock at this point, so the rcu_dereference_protected() isn't' correct. Thanks to Eric Dumazet for pointing this out. Thankfully, we're only interested in fetching the faddr value if srr is enabled, so we can simply make this an RCU sequence and use plain rcu_dereference(). Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28bridge: convert br_features_recompute() to ndo_fix_featuresMichał Mirosław4-67/+19
Note: netdev_update_features() needs only rtnl_lock as br->port_list is only changed while holding it. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28net: fix netdev_increment_features()Michał Mirosław1-24/+11
Simplify and fix netdev_increment_features() to conform to what is stated in netdevice.h comments about NETIF_F_ONE_FOR_ALL. Include FCoE segmentation and VLAN-challedged flags in computation. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28net:use help function of skb_checksum_start_offset to calculate offsetShan Wei1-1/+1
Although these are equivalent, but the skb_checksum_start_offset() is more readable. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28inet: add RCU protection to inet->optEric Dumazet15-160/+224
We lack proper synchronization to manipulate inet->opt ip_options Problem is ip_make_skb() calls ip_setup_cork() and ip_setup_cork() possibly makes a copy of ipc->opt (struct ip_options), without any protection against another thread manipulating inet->opt. Another thread can change inet->opt pointer and free old one under us. Use RCU to protect inet->opt (changed to inet->inet_opt). Instead of handling atomic refcounts, just copy ip_options when necessary, to avoid cache line dirtying. We cant insert an rcu_head in struct ip_options since its included in skb->cb[], so this patch is large because I had to introduce a new ip_options_rcu structure. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27net: filter: Just In Time compiler for x86-64Eric Dumazet4-61/+28
In order to speedup packet filtering, here is an implementation of a JIT compiler for x86_64 It is disabled by default, and must be enabled by the admin. echo 1 >/proc/sys/net/core/bpf_jit_enable It uses module_alloc() and module_free() to get memory in the 2GB text kernel range since we call helpers functions from the generated code. EAX : BPF A accumulator EBX : BPF X accumulator RDI : pointer to skb (first argument given to JIT function) RBP : frame pointer (even if CONFIG_FRAME_POINTER=n) r9d : skb->len - skb->data_len (headlen) r8 : skb->data To get a trace of generated code, use : echo 2 >/proc/sys/net/core/bpf_jit_enable Example of generated code : # tcpdump -p -n -s 0 -i eth1 host 192.168.20.0/24 flen=18 proglen=147 pass=3 image=ffffffffa00b5000 JIT code: ffffffffa00b5000: 55 48 89 e5 48 83 ec 60 48 89 5d f8 44 8b 4f 60 JIT code: ffffffffa00b5010: 44 2b 4f 64 4c 8b 87 b8 00 00 00 be 0c 00 00 00 JIT code: ffffffffa00b5020: e8 24 7b f7 e0 3d 00 08 00 00 75 28 be 1a 00 00 JIT code: ffffffffa00b5030: 00 e8 fe 7a f7 e0 24 00 3d 00 14 a8 c0 74 49 be JIT code: ffffffffa00b5040: 1e 00 00 00 e8 eb 7a f7 e0 24 00 3d 00 14 a8 c0 JIT code: ffffffffa00b5050: 74 36 eb 3b 3d 06 08 00 00 74 07 3d 35 80 00 00 JIT code: ffffffffa00b5060: 75 2d be 1c 00 00 00 e8 c8 7a f7 e0 24 00 3d 00 JIT code: ffffffffa00b5070: 14 a8 c0 74 13 be 26 00 00 00 e8 b5 7a f7 e0 24 JIT code: ffffffffa00b5080: 00 3d 00 14 a8 c0 75 07 b8 ff ff 00 00 eb 02 31 JIT code: ffffffffa00b5090: c0 c9 c3 BPF program is 144 bytes long, so native program is almost same size ;) (000) ldh [12] (001) jeq #0x800 jt 2 jf 8 (002) ld [26] (003) and #0xffffff00 (004) jeq #0xc0a81400 jt 16 jf 5 (005) ld [30] (006) and #0xffffff00 (007) jeq #0xc0a81400 jt 16 jf 17 (008) jeq #0x806 jt 10 jf 9 (009) jeq #0x8035 jt 10 jf 17 (010) ld [28] (011) and #0xffffff00 (012) jeq #0xc0a81400 jt 16 jf 13 (013) ld [38] (014) and #0xffffff00 (015) jeq #0xc0a81400 jt 16 jf 17 (016) ret #65535 (017) ret #0 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27ipv4: Remove erroneous check in igmpv3_newpack() and igmp_send_report().David S. Miller1-10/+0
Output route resolution never returns a route with rt_src set to zero (which is INADDR_ANY). Even if the flow key for the output route lookup specifies INADDR_ANY for the source address, the output route resolution chooses a real source address to use in the final route. This test has existed forever in igmp_send_report() and David Stevens simply copied over the erroneous test when implementing support for IGMPv3. Signed-off-by: David S. Miller <davem@davemloft.net> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-04-27ipv4: Sanitize and simplify ip_route_{connect,newports}()David S. Miller5-16/+18
These functions are used together as a unit for route resolution during connect(). They address the chicken-and-egg problem that exists when ports need to be allocated during connect() processing, yet such port allocations require addressing information from the routing code. It's currently more heavy handed than it needs to be, and in particular we allocate and initialize a flow object twice. Let the callers provide the on-stack flow object. That way we only need to initialize it once in the ip_route_connect() call. Later, if ip_route_newports() needs to do anything, it re-uses that flow object as-is except for the ports which it updates before the route re-lookup. Also, describe why this set of facilities are needed and how it works in a big comment. Signed-off-by: David S. Miller <davem@davemloft.net> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-04-27sctp: clean up route lookup callsVlad Yasevich3-29/+23
Change the call to take the transport parameter and set the cached 'dst' appropriately inside the get_dst() function calls. This will allow us in the future to clean up source address storage as well. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27sctp: remove useless arguments from get_saddr() callVlad Yasevich3-6/+2
There is no point in passing a destination address to a get_saddr() call. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27sctp: make sctp over IPv6 work with IPsecVlad Yasevich1-5/+11
SCTP never called xfrm_output after it's v6 route lookups so that never really worked with ipsec. Additioanlly, we never passed port nubmers and protocol in the flowi, so any port based policies were never applied as well. Now that we can fixed ipv6 routing lookup code, using ip6_dst_lookup_flow() and pass port numbers. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27sctp: cache the ipv6 source after route lookupVlad Yasevich4-119/+106
The ipv6 routing lookup does give us a source address, but instead of filling it into the dst, it's stored in the flowi. We can use that instead of going through the entire source address selection again. Also the useless ->dst_saddr member of sctp_pf is removed. And sctp_v6_dst_saddr() is removed, instead by introduce sctp_v6_to_addr(), which can be reused to cleanup some dup code. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27sctp: fix sctp to work with ipv6 source address routingWeixing Shi1-1/+43
In the below test case, using the source address routing, sctp can not work. Node-A 1)ifconfig eth0 inet6 add 2001:1::1/64 2)ip -6 rule add from 2001:1::1 table 100 pref 100 3)ip -6 route add 2001:2::1 dev eth0 table 100 4)sctp_darn -H 2001:1::1 -P 250 -l & Node-B 1)ifconfig eth0 inet6 add 2001:2::1/64 2)ip -6 rule add from 2001:2::1 table 100 pref 100 3)ip -6 route add 2001:1::1 dev eth0 table 100 4)sctp_darn -H 2001:2::1 -P 250 -h 2001:1::1 -p 250 -s root cause: Node-A and Node-B use the source address routing, and at begining, source address will be NULL,sctp will search the routing table by the destination address, because using the source address routing table, and the result dst_entry will be NULL. solution: walk through the bind address list to get the source address and then lookup the routing table again to get the correct dst_entry. Signed-off-by: Weixing Shi <Weixing.Shi@windriver.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-26Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller15-22/+74
Resolved logic conflicts causing a build failure due to drivers/net/r8169.c changes using a patch from Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-25bluetooth: Fix use-before-initiailized var.David S. Miller1-1/+1
net/bluetooth/l2cap_core.c: In function ‘l2cap_recv_frame’: net/bluetooth/l2cap_core.c:3612:15: warning: ‘sk’ may be used uninitialized in this function net/bluetooth/l2cap_core.c:3612:15: note: ‘sk’ was declared here Actually the problem is in the inline function l2cap_data_channel(), we branch to the label 'done' which tests 'sk' before we set it to anything. Initialize it to NULL to fix this. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-25Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6David S. Miller24-740/+1219
2011-04-25bonding: move processing of recv handlers into handle_frame()Jiri Pirko1-21/+0
Since now when bonding uses rx_handler, all traffic going into bond device goes thru bond_handle_frame. So there's no need to go back into bonding code later via ptype handlers. This patch converts original ptype handlers into "bonding receive probes". These functions are called from bond_handle_frame and they are registered per-mode. Note that vlan packets are also handled because they are always untagged thanks to vlan_untag() Note that this also allows arpmon for eth-bond-bridge-vlan topology. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-25net: make WARN_ON in dev_disable_lro() usefulMichał Mirosław1-1/+2
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-25net: provide cow_metrics() methods to blackhole dst_opsHeld Bernhard2-0/+14
Since commit 62fa8a846d7d (net: Implement read-only protection and COW'ing of metrics.) the kernel throws an oops. [ 101.620985] BUG: unable to handle kernel NULL pointer dereference at (null) [ 101.621050] IP: [< (null)>] (null) [ 101.621084] PGD 6e53c067 PUD 3dd6a067 PMD 0 [ 101.621122] Oops: 0010 [#1] SMP [ 101.621153] last sysfs file: /sys/devices/virtual/ppp/ppp/uevent [ 101.621192] CPU 2 [ 101.621206] Modules linked in: l2tp_ppp pppox ppp_generic slhc l2tp_netlink l2tp_core deflate zlib_deflate twofish_x86_64 twofish_common des_generic cbc ecb sha1_generic hmac af_key iptable_filter snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device loop snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_pcm snd_timer snd i2c_i801 iTCO_wdt psmouse soundcore snd_page_alloc evdev uhci_hcd ehci_hcd thermal [ 101.621552] [ 101.621567] Pid: 5129, comm: openl2tpd Not tainted 2.6.39-rc4-Quad #3 Gigabyte Technology Co., Ltd. G33-DS3R/G33-DS3R [ 101.621637] RIP: 0010:[<0000000000000000>] [< (null)>] (null) [ 101.621684] RSP: 0018:ffff88003ddeba60 EFLAGS: 00010202 [ 101.621716] RAX: ffff88003ddb5600 RBX: ffff88003ddb5600 RCX: 0000000000000020 [ 101.621758] RDX: ffffffff81a69a00 RSI: ffffffff81b7ee61 RDI: ffff88003ddb5600 [ 101.621800] RBP: ffff8800537cd900 R08: 0000000000000000 R09: ffff88003ddb5600 [ 101.621840] R10: 0000000000000005 R11: 0000000000014b38 R12: ffff88003ddb5600 [ 101.621881] R13: ffffffff81b7e480 R14: ffffffff81b7e8b8 R15: ffff88003ddebad8 [ 101.621924] FS: 00007f06e4182700(0000) GS:ffff88007fd00000(0000) knlGS:0000000000000000 [ 101.621971] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.622005] CR2: 0000000000000000 CR3: 0000000045274000 CR4: 00000000000006e0 [ 101.622046] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.622087] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 101.622129] Process openl2tpd (pid: 5129, threadinfo ffff88003ddea000, task ffff88003de9a280) [ 101.622177] Stack: [ 101.622191] ffffffff81447efa ffff88007d3ded80 ffff88003de9a280 ffff88007d3ded80 [ 101.622245] 0000000000000001 ffff88003ddebbb8 ffffffff8148d5a7 0000000000000212 [ 101.622299] ffff88003dcea000 ffff88003dcea188 ffffffff00000001 ffffffff81b7e480 [ 101.622353] Call Trace: [ 101.622374] [<ffffffff81447efa>] ? ipv4_blackhole_route+0x1ba/0x210 [ 101.622415] [<ffffffff8148d5a7>] ? xfrm_lookup+0x417/0x510 [ 101.622450] [<ffffffff8127672a>] ? extract_buf+0x9a/0x140 [ 101.622485] [<ffffffff8144c6a0>] ? __ip_flush_pending_frames+0x70/0x70 [ 101.622526] [<ffffffff8146fbbf>] ? udp_sendmsg+0x62f/0x810 [ 101.622562] [<ffffffff813f98a6>] ? sock_sendmsg+0x116/0x130 [ 101.622599] [<ffffffff8109df58>] ? find_get_page+0x18/0x90 [ 101.622633] [<ffffffff8109fd6a>] ? filemap_fault+0x12a/0x4b0 [ 101.622668] [<ffffffff813fb5c4>] ? move_addr_to_kernel+0x64/0x90 [ 101.622706] [<ffffffff81405d5a>] ? verify_iovec+0x7a/0xf0 [ 101.622739] [<ffffffff813fc772>] ? sys_sendmsg+0x292/0x420 [ 101.622774] [<ffffffff810b994a>] ? handle_pte_fault+0x8a/0x7c0 [ 101.622810] [<ffffffff810b76fe>] ? __pte_alloc+0xae/0x130 [ 101.622844] [<ffffffff810ba2f8>] ? handle_mm_fault+0x138/0x380 [ 101.622880] [<ffffffff81024af9>] ? do_page_fault+0x189/0x410 [ 101.622915] [<ffffffff813fbe03>] ? sys_getsockname+0xf3/0x110 [ 101.622952] [<ffffffff81450c4d>] ? ip_setsockopt+0x4d/0xa0 [ 101.622986] [<ffffffff813f9932>] ? sockfd_lookup_light+0x22/0x90 [ 101.623024] [<ffffffff814b61fb>] ? system_call_fastpath+0x16/0x1b [ 101.623060] Code: Bad RIP value. [ 101.623090] RIP [< (null)>] (null) [ 101.623125] RSP <ffff88003ddeba60> [ 101.623146] CR2: 0000000000000000 [ 101.650871] ---[ end trace ca3856a7d8e8dad4 ]--- [ 101.651011] __sk_free: optmem leakage (160 bytes) detected. The oops happens in dst_metrics_write_ptr() include/net/dst.h:124: return dst->ops->cow_metrics(dst, p); dst->ops->cow_metrics is NULL and causes the oops. Provide cow_metrics() methods, like we did in commit 214f45c91bb (net: provide default_advmss() methods to blackhole dst_ops) Signed-off-by: Held Bernhard <berny156@gmx.de> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-25Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davemJohn W. Linville24-740/+1219
Conflicts: drivers/net/wireless/iwlwifi/iwl-core.c drivers/net/wireless/rt2x00/rt2x00queue.c drivers/net/wireless/rt2x00/rt2x00queue.h
2011-04-22Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6David S. Miller6-7/+16
2011-04-22inet: constify ip headers and in6_addrEric Dumazet55-276/+280
Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21Revert "bridge: Forward reserved group addresses if !STP"David S. Miller1-1/+1
This reverts commit 1e253c3b8a1aeed51eef6fc366812f219b97de65. It breaks 802.3ad bonding inside of a bridge. The commit was meant to support transport bridging, and specifically virtual machines bridged to an ethernet interface connected to a switch port wiht 802.1x enabled. But this isn't the way to do it, it breaks too many other things. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21ipv6: Remove hoplimit initialization to -1Thomas Egerer1-1/+0
The changes introduced with git-commit a02e4b7d ("ipv6: Demark default hoplimit as zero.") missed to remove the hoplimit initialization. As a result, ipv6_get_mtu interprets the return value of dst_metric_raw (-1) as 255 and answers ping6 with this hoplimit. This patche removes the line such that ping6 is answered with the hoplimit value configured via sysctl. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21net: fix hw_features ethtool_ops->set_flags compatibilityMichał Mirosław1-2/+2
__ethtool_set_flags() was not taking into account features set but not user-toggleable. Since GFLAGS returns masked dev->features, EINVAL is returned when passed flags differ to it, and not to wanted_features. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21ipv6: udp: fix the wrong headroom checkShan Wei1-1/+1
At this point, skb->data points to skb_transport_header. So, headroom check is wrong. For some case:bridge(UFO is on) + eth device(UFO is off), there is no enough headroom for IPv6 frag head. But headroom check is always false. This will bring about data be moved to there prior to skb->head, when adding IPv6 frag header to skb. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21sctp: implement event notification SCTP_SENDER_DRY_EVENTWei Yongjun3-1/+53
This patch implement event notification SCTP_SENDER_DRY_EVENT. SCTP Socket API Extensions: 6.1.9. SCTP_SENDER_DRY_EVENT When the SCTP stack has no more user data to send or retransmit, this notification is given to the user. Also, at the time when a user app subscribes to this event, if there is no data to be sent or retransmit, the stack will immediately send up this notification. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21sctp: change auth event type name to SCTP_AUTHENTICATION_EVENTWei Yongjun1-1/+1
This patch change the auth event type name to SCTP_AUTHENTICATION_EVENT, which is based on API extension compliance. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21sctp: implement socket option SCTP_GET_ASSOC_ID_LISTWei Yongjun1-0/+52
This patch Implement socket option SCTP_GET_ASSOC_ID_LIST. SCTP Socket API Extension: 8.2.6. Get the Current Identifiers of Associations (SCTP_GET_ASSOC_ID_LIST) This option gets the current list of SCTP association identifiers of the SCTP associations handled by a one-to-many style socket. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20mac80211: fix SMPS debugfs lockingJohannes Berg2-2/+4
The locking with SMPS requests means that the debugs file should lock the mgd mutex, not the iflist mutex. Calls to __ieee80211_request_smps() need to hold that mutex, so add an assertion. This has always been wrong, but for some reason never been noticed, probably because the locking error only happens while unassociated. Cc: stable@kernel.org [2.6.34+] Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-20can: add missing socket check in can/raw releaseOliver Hartkopp1-1/+6
v2: added space after 'if' according code style. We can get here with a NULL socket argument passed from userspace, so we need to handle it accordingly. Thanks to Dave Jones pointing at this issue in net/can/bcm.c Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: move chunk from retransmit queue to abandoned listWei Yongjun1-0/+7
If there is still data waiting to retransmit and remain in retransmit queue, while doing the next retransmit, if the chunk is abandoned, we should move it to abandoned list. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: make heartbeat information in sctp_make_heartbeat()Wei Yongjun2-15/+14
Make heartbeat information in sctp_make_heartbeat() instead of make it in sctp_sf_heartbeat() directly for common using. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: fix to check the source address of COOKIE-ECHO chunkWei Yongjun3-16/+27
SCTP does not check whether the source address of COOKIE-ECHO chunk is the original address of INIT chunk or part of the any address parameters saved in COOKIE in CLOSED state. So even if the COOKIE-ECHO chunk is from any address but with correct COOKIE, the COOKIE-ECHO chunk still be accepted. If the COOKIE is not from a valid address, the assoc should not be established. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: handle ootb packet in chunk order as definedShan Wei2-15/+21
Changed the order of processing SHUTDOWN ACK and COOKIE ACK refer to section 8.4:Handle "Out of the Blue" Packets. SHUTDOWN ACK chunk should be processed before processing "Stale Cookie" ERROR or a COOKIE ACK. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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