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* ipv4: Remember FIB alias list head and table in lookup results.David S. Miller2011-02-014-8/+11
| | | | | | | | | This will be used later to implement fib_select_default() in a completely generic manner, instead of the current situation where the default route is re-looked up in the TRIE/HASH table and then the available aliases are analyzed. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-mergeDavid S. Miller2011-01-3139-94/+93
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| * batman-adv: Update copyright yearsSven Eckelmann2011-01-3139-39/+39
| | | | | | | | Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * batman-adv: Remove unused variablesSven Eckelmann2011-01-312-10/+1
| | | | | | | | Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * batman-adv: Remove declaration of batman_skb_recvSven Eckelmann2011-01-312-6/+9
| | | | | | | | | | | | | | batman_skb_recv can be defined in hard-interface.c as static because it is never used outside of that file. Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * batman-adv: Remove unused definitionsSven Eckelmann2011-01-311-15/+0
| | | | | | | | Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * batman-adv: Remove dangling declaration of hash_remove_elementSven Eckelmann2011-01-311-5/+0
| | | | | | | | Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * batman-adv: remove unused parametersSimon Wunderlich2011-01-314-14/+10
| | | | | | | | | | | | | | | | Some function parameters are obsolete now and can be removed. Reported-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * batman-adv: Calculate correct size for merged packetsSven Eckelmann2011-01-314-3/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The routing algorithm must be able to decide if a fragment can be merged with the missing part and still be passed to a forwarding interface. The fragments can only differ by one byte in case that the original payload had an uneven length. In that situation the sender has to inform all possible receivers that the tail is one byte longer using the flag UNI_FRAG_LARGETAIL. The combination of UNI_FRAG_LARGETAIL and UNI_FRAG_HEAD flag makes it possible to calculate the correct length for even and uneven sized payloads. The original formula missed to add the unicast header at all and forgot to remove the fragment header of the second fragment. This made the results highly unreliable and only useful for machines with large differences between the configured MTUs. Reported-by: Russell Senior <russell@personaltelco.net> Reported-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * batman-adv: Create roughly equal sized fragmentsSven Eckelmann2011-01-311-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The routing algorithm must know how large two fragments are to be able to decide that it is safe to merge them or if it should resubmit without waiting for the second part. When these two fragments have a too different size, it is not possible to guess right in every situation. The user could easily configure the MTU of the attached cards so that one fragment is forwarded and the other one is added to the fragments table to wait for the missing part. For even sized packets, it is possible to split it so that the resulting packages are equal sized by ignoring the old non-fragment header at the beginning of the original packet. This still creates different sized fragments for uneven sized packets. Reported-by: Russell Senior <russell@personaltelco.net> Reported-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
* | Merge branch 'master' of ↵David S. Miller2011-01-316-6/+93
|\ \ | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * \ Merge branch 'batman-adv/merge-oopsonly' of ↵David S. Miller2011-01-311-6/+8
| |\ \ | | | | | | | | | | | | git://git.open-mesh.org/ecsv/linux-merge
| | * | batman-adv: Make vis info stack traversal threadsafeSven Eckelmann2011-01-301-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The batman-adv vis server has to a stack which stores all information about packets which should be send later. This stack is protected with a spinlock that is used to prevent concurrent write access to it. The send_vis_packets function has to take all elements from the stack and send them to other hosts over the primary interface. The send will be initiated without the lock which protects the stack. The implementation using list_for_each_entry_safe has the problem that it stores the next element as "safe ptr" to allow the deletion of the current element in the list. The list may be modified during the unlock/lock pair in the loop body which may make the safe pointer not pointing to correct next element. It is safer to remove and use the first element from the stack until no elements are available. This does not need reduntant information which would have to be validated each time the lock was removed. Reported-by: Russell Senior <russell@personaltelco.net> Signed-off-by: Sven Eckelmann <sven@narfation.org>
| | * | batman-adv: Remove vis info element in free_infoSven Eckelmann2011-01-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The free_info function will be called when no reference to the info object exists anymore. It must be ensured that the allocated memory gets freed and not only the elements which are managed by the info object. Signed-off-by: Sven Eckelmann <sven@narfation.org>
| | * | batman-adv: Remove vis info on hashing errorsSven Eckelmann2011-01-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A newly created vis info object must be removed when it couldn't be added to the hash. The old_info which has to be replaced was already removed and isn't related to the hash anymore. Signed-off-by: Sven Eckelmann <sven@narfation.org>
| | * | batman-adv: Fix kernel panic when fetching vis data on a vis serverLinus Lüssing2011-01-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hash_iterate removal introduced a bug leading to a kernel panic when fetching the vis data on a vis server. That commit forgot to rename one variable name, which this commit fixes now. Reported-by: Russell Senior <russell@personaltelco.net> Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
| * | | net: Add compat ioctl support for the ipv4 multicast ioctl SIOCGETSGCNTEric W. Biederman2011-01-303-0/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SIOCGETSGCNT is not a unique ioctl value as it it maps tio SIOCPROTOPRIVATE +1, which unfortunately means the existing infrastructure for compat networking ioctls is insufficient. A trivial compact ioctl implementation would conflict with: SIOCAX25ADDUID SIOCAIPXPRISLT SIOCGETSGCNT_IN6 SIOCGETSGCNT SIOCRSSCAUSE SIOCX25SSUBSCRIP SIOCX25SDTEFACILITIES To make this work I have updated the compat_ioctl decode path to mirror the the normal ioctl decode path. I have added an ipv4 inet_compat_ioctl function so that I can have ipv4 specific compat ioctls. I have added a compat_ioctl function into struct proto so I can break out ioctls by which kind of ip socket I am using. I have added a compat_raw_ioctl function because SIOCGETSGCNT only works on raw sockets. I have added a ipmr_compat_ioctl that mirrors the normal ipmr_ioctl. This was necessary because unfortunately the struct layout for the SIOCGETSGCNT has unsigned longs in it so changes between 32bit and 64bit kernels. This change was sufficient to run a 32bit ip multicast routing daemon on a 64bit kernel. Reported-by: Bill Fenner <fenner@aristanetworks.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: Fix ip link add netns oopsEric W. Biederman2011-01-301-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ed Swierk <eswierk@bigswitch.com> writes: > On 2.6.35.7 > ip link add link eth0 netns 9999 type macvlan > where 9999 is a nonexistent PID triggers an oops and causes all network functions to hang: > [10663.821898] BUG: unable to handle kernel NULL pointer dereference at 000000000000006d > [10663.821917] IP: [<ffffffff8149c2fa>] __dev_alloc_name+0x9a/0x170 > [10663.821933] PGD 1d3927067 PUD 22f5c5067 PMD 0 > [10663.821944] Oops: 0000 [#1] SMP > [10663.821953] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq > [10663.821959] CPU 3 > [10663.821963] Modules linked in: macvlan ip6table_filter ip6_tables rfcomm ipt_MASQUERADE binfmt_misc iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack sco ipt_REJECT bnep l2cap xt_tcpudp iptable_filter ip_tables x_tables bridge stp vboxnetadp vboxnetflt vboxdrv kvm_intel kvm parport_pc ppdev snd_hda_codec_intelhdmi snd_hda_codec_conexant arc4 iwlagn iwlcore mac80211 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi i915 snd_seq_midi_event snd_seq thinkpad_acpi drm_kms_helper btusb tpm_tis nvram uvcvideo snd_timer snd_seq_device bluetooth videodev v4l1_compat v4l2_compat_ioctl32 tpm drm tpm_bios snd cfg80211 psmouse serio_raw intel_ips soundcore snd_page_alloc intel_agp i2c_algo_bit video output netconsole configfs lp parport usbhid hid e1000e sdhci_pci ahci libahci sdhci led_class > [10663.822155] > [10663.822161] Pid: 6000, comm: ip Not tainted 2.6.35-23-generic #41-Ubuntu 2901CTO/2901CTO > [10663.822167] RIP: 0010:[<ffffffff8149c2fa>] [<ffffffff8149c2fa>] __dev_alloc_name+0x9a/0x170 > [10663.822177] RSP: 0018:ffff88014aebf7b8 EFLAGS: 00010286 > [10663.822182] RAX: 00000000fffffff4 RBX: ffff8801ad900800 RCX: 0000000000000000 > [10663.822187] RDX: ffff880000000000 RSI: 0000000000000000 RDI: ffff88014ad63000 > [10663.822191] RBP: ffff88014aebf808 R08: 0000000000000041 R09: 0000000000000041 > [10663.822196] R10: 0000000000000000 R11: dead000000200200 R12: ffff88014aebf818 > [10663.822201] R13: fffffffffffffffd R14: ffff88014aebf918 R15: ffff88014ad62000 > [10663.822207] FS: 00007f00c487f700(0000) GS:ffff880001f80000(0000) knlGS:0000000000000000 > [10663.822212] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [10663.822216] CR2: 000000000000006d CR3: 0000000231f19000 CR4: 00000000000026e0 > [10663.822221] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [10663.822226] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [10663.822231] Process ip (pid: 6000, threadinfo ffff88014aebe000, task ffff88014afb16e0) > [10663.822236] Stack: > [10663.822240] ffff88014aebf808 ffffffff814a2bb5 ffff88014aebf7e8 00000000a00ee8d6 > [10663.822251] <0> 0000000000000000 ffffffffa00ef940 ffff8801ad900800 ffff88014aebf818 > [10663.822265] <0> ffff88014aebf918 ffff8801ad900800 ffff88014aebf858 ffffffff8149c413 > [10663.822281] Call Trace: > [10663.822290] [<ffffffff814a2bb5>] ? dev_addr_init+0x75/0xb0 > [10663.822298] [<ffffffff8149c413>] dev_alloc_name+0x43/0x90 > [10663.822307] [<ffffffff814a85ee>] rtnl_create_link+0xbe/0x1b0 > [10663.822314] [<ffffffff814ab2aa>] rtnl_newlink+0x48a/0x570 > [10663.822321] [<ffffffff814aafcc>] ? rtnl_newlink+0x1ac/0x570 > [10663.822332] [<ffffffff81030064>] ? native_x2apic_icr_read+0x4/0x20 > [10663.822339] [<ffffffff814a8c17>] rtnetlink_rcv_msg+0x177/0x290 > [10663.822346] [<ffffffff814a8aa0>] ? rtnetlink_rcv_msg+0x0/0x290 > [10663.822354] [<ffffffff814c25d9>] netlink_rcv_skb+0xa9/0xd0 > [10663.822360] [<ffffffff814a8a85>] rtnetlink_rcv+0x25/0x40 > [10663.822367] [<ffffffff814c223e>] netlink_unicast+0x2de/0x2f0 > [10663.822374] [<ffffffff814c303e>] netlink_sendmsg+0x1fe/0x2e0 > [10663.822383] [<ffffffff81488533>] sock_sendmsg+0xf3/0x120 > [10663.822391] [<ffffffff815899fe>] ? _raw_spin_lock+0xe/0x20 > [10663.822400] [<ffffffff81168656>] ? __d_lookup+0x136/0x150 > [10663.822406] [<ffffffff815899fe>] ? _raw_spin_lock+0xe/0x20 > [10663.822414] [<ffffffff812b7a0d>] ? _atomic_dec_and_lock+0x4d/0x80 > [10663.822422] [<ffffffff8116ea90>] ? mntput_no_expire+0x30/0x110 > [10663.822429] [<ffffffff81486ff5>] ? move_addr_to_kernel+0x65/0x70 > [10663.822435] [<ffffffff81493308>] ? verify_iovec+0x88/0xe0 > [10663.822442] [<ffffffff81489020>] sys_sendmsg+0x240/0x3a0 > [10663.822450] [<ffffffff8111e2a9>] ? __do_fault+0x479/0x560 > [10663.822457] [<ffffffff815899fe>] ? _raw_spin_lock+0xe/0x20 > [10663.822465] [<ffffffff8116cf4a>] ? alloc_fd+0x10a/0x150 > [10663.822473] [<ffffffff8158d76e>] ? do_page_fault+0x15e/0x350 > [10663.822482] [<ffffffff8100a0f2>] system_call_fastpath+0x16/0x1b > [10663.822487] Code: 90 48 8d 78 02 be 25 00 00 00 e8 92 1d e2 ff 48 85 c0 75 cf bf 20 00 00 00 e8 c3 b1 c6 ff 49 89 c7 b8 f4 ff ff ff 4d 85 ff 74 bd <4d> 8b 75 70 49 8d 45 70 48 89 45 b8 49 83 ee 58 eb 28 48 8d 55 > [10663.822618] RIP [<ffffffff8149c2fa>] __dev_alloc_name+0x9a/0x170 > [10663.822627] RSP <ffff88014aebf7b8> > [10663.822631] CR2: 000000000000006d > [10663.822636] ---[ end trace 3dfd6c3ad5327ca7 ]--- This bug was introduced in: commit 81adee47dfb608df3ad0b91d230fb3cef75f0060 Author: Eric W. Biederman <ebiederm@aristanetworks.com> Date: Sun Nov 8 00:53:51 2009 -0800 net: Support specifying the network namespace upon device creation. There is no good reason to not support userspace specifying the network namespace during device creation, and it makes it easier to create a network device and pass it to a child network namespace with a well known name. We have to be careful to ensure that the target network namespace for the new device exists through the life of the call. To keep that logic clear I have factored out the network namespace grabbing logic into rtnl_link_get_net. In addtion we need to continue to pass the source network namespace to the rtnl_link_ops.newlink method so that we can find the base device source network namespace. Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Where apparently I forgot to add error handling to the path where we create a new network device in a new network namespace, and pass in an invalid pid. Cc: stable@kernel.org Reported-by: Ed Swierk <eswierk@bigswitch.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | gro: Reset dev pointer on reuseHerbert Xu2011-01-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On older kernels the VLAN code may zero skb->dev before dropping it and causing it to be reused by GRO. Unfortunately we didn't reset skb->dev in that case which causes the next GRO user to get a bogus skb->dev pointer. This particular problem no longer happens with the current upstream kernel due to changes in VLAN processing. However, for correctness we should still reset the skb->dev pointer in the GRO reuse function in case a future user does the same thing. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'master' of ↵David S. Miller2011-01-316-13/+35
|\ \ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
| * | | | netfilter: xt_iprange: add IPv6 match debug print codeThomas Jacob2011-01-281-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Jacob <jacob@internet24.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * | | | netfilter: xt_iprange: typo in IPv4 match debug print codeThomas Jacob2011-01-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Jacob <jacob@internet24.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * | | | Merge branch 'connlimit' of git://dev.medozas.de/linuxPatrick McHardy2011-01-261-4/+8
| |\ \ \ \
| | * | | | netfilter: xt_connlimit: pick right dstaddr in NAT scenarioJan Engelhardt2011-01-261-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xt_connlimit normally records the "original" tuples in a hashlist (such as "1.2.3.4 -> 5.6.7.8"), and looks in this list for iph->daddr when counting. When the user however uses DNAT in PREROUTING, looking for iph->daddr -- which is now 192.168.9.10 -- will not match. Thus in daddr mode, we need to record the reverse direction tuple ("192.168.9.10 -> 1.2.3.4") instead. In the reverse tuple, the dst addr is on the src side, which is convenient, as count_them still uses &conn->tuple.src.u3. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| * | | | | netfilter: ipvs: fix compiler warningsChangli Gao2011-01-251-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix compiler warnings when IP_VS_DBG() isn't defined. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Acked-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Simon Horman <horms@verge.net.au>
| * | | | | IPVS netns BUG, register sysctl for root nsHans Schillstrom2011-01-251-1/+1
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The newly created table was not used when register sysctl for a new namespace. I.e. sysctl doesn't work for other than root namespace (init_net) Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Simon Horman <horms@verge.net.au>
| * | | | IPVS: Change sock_create_kernel() to __sock_create()Simon Horman2011-01-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent netns changes omitted to change sock_create_kernel() to __sock_create() in ip_vs_sync.c The effect of this is that the interface will be selected in the root-namespace, from my point of view it's a major bug. Reported-by: Hans Schillstrom <hans@schillstrom.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
| * | | | netfilter: ipvs: fix compiler warningsChangli Gao2011-01-222-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix compiler warnings when no transport protocol load balancing support is configured. [horms@verge.net.au: removed suprious __ip_vs_cleanup() clean-up hunk] Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
* | | | | ipv4: If fib metrics are default, no need to grab ref to FIB info.David S. Miller2011-01-281-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fib metric memory in this case is static in the kernel image, so we don't need to reference count it since it's never going to go away on us. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | ipv4: Attach FIB info to dst_default_metrics when possibleDavid S. Miller2011-01-282-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If there are no explicit metrics attached to a route, hook fi->fib_info up to dst_default_metrics. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | ipv4: Allocate fib metrics dynamically.David S. Miller2011-01-281-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the initial gateway towards super-sharing metrics if they are all set to zero for a route. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | net: Pre-COW metrics for TCP.David S. Miller2011-01-281-3/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TCP is going to record metrics for the connection, so pre-COW the route metrics at route cache entry creation time. This avoids several atomic operations that have to occur if we COW the metrics after the entry reaches global visibility. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge branch 'master' of ↵David S. Miller2011-01-2815-221/+148
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * | | | | mac80211: use DECLARE_EVENT_CLASSJohannes Berg2011-01-261-169/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For events that include only the local struct as their parameter, we can use DECLARE_EVENT_CLASS and save quite some binary size across segments as well lines of code. text data bss dec hex filename 375745 19296 916 395957 60ab5 mac80211.ko.before 367473 17888 916 386277 5e4e5 mac80211.ko.after -8272 -1408 0 -9680 -25d0 delta Some more tracepoints with identical arguments could be combined like this but for now this is the one that benefits most. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | cfg80211: Extend channel to frequency mapping for 802.11jBruno Randolf2011-01-217-24/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend channel to frequency mapping for 802.11j Japan 4.9GHz band, according to IEEE802.11 section 17.3.8.3.2 and Annex J. Because there are now overlapping channel numbers in the 2GHz and 5GHz band we can't map from channel to frequency without knowing the band. This is no problem as in most contexts we know the band. In places where we don't know the band (and WEXT compatibility) we assume the 2GHz band for channels below 14. This patch does not implement all channel to frequency mappings defined in 802.11, it's just an extension for 802.11j 20MHz channels. 5MHz and 10MHz channels as well as 802.11y channels have been omitted. The following drivers have been updated to reflect the API changes: iwl-3945, iwl-agn, iwmc3200wifi, libertas, mwl8k, rt2x00, wl1251, wl12xx. The drivers have been compile-tested only. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: Brian Prodoehl <bprodoehl@gmail.com> Acked-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: Fix skb-copy failure debug message.Ben Greear2011-01-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This particular error isn't about multicast. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: drop non-auth 3-addr data frames when running as a 4-addr stationFelix Fietkau2011-01-191-3/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running as a 4-addr station against an AP that has the 4-addr VLAN interface and the main 3-addr AP interface bridged together, sometimes frames originating from the station were looping back from the 3-addr AP interface, causing the bridge code to emit warnings about receiving frames with its own source address. I'm not sure why this is happening yet, but I think it's a good idea to drop all frames (except 802.1x/EAP frames) that do not match the configured addressing mode, including 4-address frames sent to a 3-address station. User test reports indicate that the problem goes away with this patch. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: allow advertising correct maximum aggregate sizeJohannes Berg2011-01-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, mac80211 always advertises that it may send up to 64 subframes in an aggregate. This is fine, since it's the max, but might as well be set to zero instead since it doesn't have any information. However, drivers might have that information, so allow them to set a variable giving it, which will then be used. The default of zero will be fine since to the peer that means we don't know and it will just use its own limit for the buffer size. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: track receiver's aggregation reorder buffer sizeJohannes Berg2011-01-195-12/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The aggregation code currently doesn't implement the buffer size negotiation. It will always request a max buffer size (which is fine, if a little pointless, as the mac80211 code doesn't know and might just use 0 instead), but if the peer requests a smaller size it isn't possible to honour this request. In order to fix this, look at the buffer size in the addBA response frame, keep track of it and pass it to the driver in the ampdu_action callback when called with the IEEE80211_AMPDU_TX_OPERATIONAL action. That way the driver can limit the number of subframes in aggregates appropriately. Note that this doesn't fix any drivers apart from the addition of the new argument -- they all need to be updated separately to use this variable! Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: don't return beacons when mesh is disabledJohannes Berg2011-01-191-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When mesh is disabled, mac80211 was returning beacons with an empty mesh ID. That isn't desirable, even if drivers shouldn't be trying to get beacons to start with. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: Show max retry-counts in kernel messages.Ben Greear2011-01-191-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: mesh only parameter mppath maybe unusedWey-Yi Guy2011-01-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mppath is mesh related parameter and maybe unused Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: add hw configuration for max ampdu buffer sizeLuciano Coelho2011-01-192-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some devices don't support the maximum AMDPU buffer size of 64, so we need to add an option to configure this in the hardware configuration. This value will be used in the ADDBA response instead of the value suggested in the request, if the latter is greater than the max supported. Signed-off-by: Luciano Coelho <coelho@ti.com> Tested-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211:mesh_mpp_table_grow call should depend on MESH_WORK_GROW_MPP_TABLE ↵Nick Ledovskikh2011-01-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | flag. Replace MESH_WORK_GROW_MPATH_TABLE by MESH_WORK_GROW_MPP_TABLE in mesh_mpp_table_grow call condition. (Clearly the original was a typo... -- JWL) Signed-off-by: Nickolay Ledovskikh <nledovskikh@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | mac80211: Rewrote code for checking if destinations are proxied.Joel A Fernandes2011-01-191-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rewrote code for checking if the destination is proxied by a mesh portal, to facilitate better understanding of the functionality. Signed-off-by: Joel A Fernandes <agnel.joel@gmail.com> Acked-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | | | | net: fix dev_seq_next()Eric Dumazet2011-01-281-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit c6d14c84566d (net: Introduce for_each_netdev_rcu() iterator) added a race in dev_seq_next(). The rcu_dereference() call should be done _before_ testing the end of list, or we might return a wrong net_device if a concurrent thread changes net_device list under us. Note : discovered thanks to a sparse warning : net/core/dev.c:3919:9: error: incompatible types in comparison expression (different address spaces) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | net: Store ipv4/ipv6 COW'd metrics in inetpeer cache.David S. Miller2011-01-272-9/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Please note that the IPSEC dst entry metrics keep using the generic metrics COW'ing mechanism using kmalloc/kfree. This gives the IPSEC routes an opportunity to use metrics which are unique to their encapsulated paths. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | Merge branch 'master' of ↵David S. Miller2011-01-274-8/+4
|\ \ \ \ \ \ | | |_|/ / / | |/| | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * | | | | ipv6: Remove route peer binding assertions.David S. Miller2011-01-271-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | They are bogus. The basic idea is that I wanted to make sure that prefixed routes never bind to peers. The test I used was whether RTF_CACHE was set. But first of all, the RTF_CACHE flag is set at different spots depending upon which ip6_rt_copy() caller you're talking about. I've validated all of the code paths, and even in the future where we bind peers more aggressively (for route metric COW'ing) we never bind to prefix'd routes, only fully specified ones. This even applies when addrconf or icmp6 routes are allocated. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | net: add kmemcheck annotation in __alloc_skb()Eric Dumazet2011-01-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pskb_expand_head() triggers a kmemcheck warning when copy of skb_shared_info is done in pskb_expand_head() This is because destructor_arg field is not necessarily initialized at this point. Add kmemcheck_annotate_variable() call in __alloc_skb() to instruct kmemcheck this is a normal situation. Resolves bugzilla.kernel.org 27212 Reference: https://bugzilla.kernel.org/show_bug.cgi?id=27212 Reported-by: Christian Casteyde <casteyde.christian@free.fr> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 16:27:47 +0100