aboutsummaryrefslogtreecommitdiffstats
path: root/include/net
Commit message (Collapse)AuthorAge
* ipvs: fix oops on NAT reply in br_nf contextLin Ming2012-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IPVS should not reset skb->nf_bridge in FORWARD hook by calling nf_reset for NAT replies. It triggers oops in br_nf_forward_finish. [ 579.781508] BUG: unable to handle kernel NULL pointer dereference at 0000000000000004 [ 579.781669] IP: [<ffffffff817b1ca5>] br_nf_forward_finish+0x58/0x112 [ 579.781792] PGD 218f9067 PUD 0 [ 579.781865] Oops: 0000 [#1] SMP [ 579.781945] CPU 0 [ 579.781983] Modules linked in: [ 579.782047] [ 579.782080] [ 579.782114] Pid: 4644, comm: qemu Tainted: G W 3.5.0-rc5-00006-g95e69f9 #282 Hewlett-Packard /30E8 [ 579.782300] RIP: 0010:[<ffffffff817b1ca5>] [<ffffffff817b1ca5>] br_nf_forward_finish+0x58/0x112 [ 579.782455] RSP: 0018:ffff88007b003a98 EFLAGS: 00010287 [ 579.782541] RAX: 0000000000000008 RBX: ffff8800762ead00 RCX: 000000000001670a [ 579.782653] RDX: 0000000000000000 RSI: 000000000000000a RDI: ffff8800762ead00 [ 579.782845] RBP: ffff88007b003ac8 R08: 0000000000016630 R09: ffff88007b003a90 [ 579.782957] R10: ffff88007b0038e8 R11: ffff88002da37540 R12: ffff88002da01a02 [ 579.783066] R13: ffff88002da01a80 R14: ffff88002d83c000 R15: ffff88002d82a000 [ 579.783177] FS: 0000000000000000(0000) GS:ffff88007b000000(0063) knlGS:00000000f62d1b70 [ 579.783306] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [ 579.783395] CR2: 0000000000000004 CR3: 00000000218fe000 CR4: 00000000000027f0 [ 579.783505] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 579.783684] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 579.783795] Process qemu (pid: 4644, threadinfo ffff880021b20000, task ffff880021aba760) [ 579.783919] Stack: [ 579.783959] ffff88007693cedc ffff8800762ead00 ffff88002da01a02 ffff8800762ead00 [ 579.784110] ffff88002da01a02 ffff88002da01a80 ffff88007b003b18 ffffffff817b26c7 [ 579.784260] ffff880080000000 ffffffff81ef59f0 ffff8800762ead00 ffffffff81ef58b0 [ 579.784477] Call Trace: [ 579.784523] <IRQ> [ 579.784562] [ 579.784603] [<ffffffff817b26c7>] br_nf_forward_ip+0x275/0x2c8 [ 579.784707] [<ffffffff81704b58>] nf_iterate+0x47/0x7d [ 579.784797] [<ffffffff817ac32e>] ? br_dev_queue_push_xmit+0xae/0xae [ 579.784906] [<ffffffff81704bfb>] nf_hook_slow+0x6d/0x102 [ 579.784995] [<ffffffff817ac32e>] ? br_dev_queue_push_xmit+0xae/0xae [ 579.785175] [<ffffffff8187fa95>] ? _raw_write_unlock_bh+0x19/0x1b [ 579.785179] [<ffffffff817ac417>] __br_forward+0x97/0xa2 [ 579.785179] [<ffffffff817ad366>] br_handle_frame_finish+0x1a6/0x257 [ 579.785179] [<ffffffff817b2386>] br_nf_pre_routing_finish+0x26d/0x2cb [ 579.785179] [<ffffffff817b2cf0>] br_nf_pre_routing+0x55d/0x5c1 [ 579.785179] [<ffffffff81704b58>] nf_iterate+0x47/0x7d [ 579.785179] [<ffffffff817ad1c0>] ? br_handle_local_finish+0x44/0x44 [ 579.785179] [<ffffffff81704bfb>] nf_hook_slow+0x6d/0x102 [ 579.785179] [<ffffffff817ad1c0>] ? br_handle_local_finish+0x44/0x44 [ 579.785179] [<ffffffff81551525>] ? sky2_poll+0xb35/0xb54 [ 579.785179] [<ffffffff817ad62a>] br_handle_frame+0x213/0x229 [ 579.785179] [<ffffffff817ad417>] ? br_handle_frame_finish+0x257/0x257 [ 579.785179] [<ffffffff816e3b47>] __netif_receive_skb+0x2b4/0x3f1 [ 579.785179] [<ffffffff816e69fc>] process_backlog+0x99/0x1e2 [ 579.785179] [<ffffffff816e6800>] net_rx_action+0xdf/0x242 [ 579.785179] [<ffffffff8107e8a8>] __do_softirq+0xc1/0x1e0 [ 579.785179] [<ffffffff8135a5ba>] ? trace_hardirqs_off_thunk+0x3a/0x6c [ 579.785179] [<ffffffff8188812c>] call_softirq+0x1c/0x30 The steps to reproduce as follow, 1. On Host1, setup brige br0(192.168.1.106) 2. Boot a kvm guest(192.168.1.105) on Host1 and start httpd 3. Start IPVS service on Host1 ipvsadm -A -t 192.168.1.106:80 -s rr ipvsadm -a -t 192.168.1.106:80 -r 192.168.1.105:80 -m 4. Run apache benchmark on Host2(192.168.1.101) ab -n 1000 http://192.168.1.106/ ip_vs_reply4 ip_vs_out handle_response ip_vs_notrack nf_reset() { skb->nf_bridge = NULL; } Actually, IPVS wants in this case just to replace nfct with untracked version. So replace the nf_reset(skb) call in ip_vs_notrack() with a nf_conntrack_put(skb->nfct) call. Signed-off-by: Lin Ming <mlin@ss.pku.edu.cn> Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netfilter: nf_ct_ecache: fix crash with multiple containers, one shutting downPablo Neira Ayuso2012-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | Hans reports that he's still hitting: BUG: unable to handle kernel NULL pointer dereference at 000000000000027c IP: [<ffffffff813615db>] netlink_has_listeners+0xb/0x60 PGD 0 Oops: 0000 [#3] PREEMPT SMP CPU 0 It happens when adding a number of containers with do: nfct_query(h, NFCT_Q_CREATE, ct); and most likely one namespace shuts down. this problem was supposed to be fixed by: 70e9942 netfilter: nf_conntrack: make event callback registration per-netns Still, it was missing one rcu_access_pointer to check if the callback is set or not. Reported-by: Hans Schillstrom <hans@schillstrom.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* sctp: be more restrictive in transport selection on bundled sacksNeil Horman2012-07-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was noticed recently that when we send data on a transport, its possible that we might bundle a sack that arrived on a different transport. While this isn't a major problem, it does go against the SHOULD requirement in section 6.4 of RFC 2960: An endpoint SHOULD transmit reply chunks (e.g., SACK, HEARTBEAT ACK, etc.) to the same destination transport address from which it received the DATA or control chunk to which it is replying. This rule should also be followed if the endpoint is bundling DATA chunks together with the reply chunk. This patch seeks to correct that. It restricts the bundling of sack operations to only those transports which have moved the ctsn of the association forward since the last sack. By doing this we guarantee that we only bundle outbound saks on a transport that has received a chunk since the last sack. This brings us into stricter compliance with the RFC. Vlad had initially suggested that we strictly allow only sack bundling on the transport that last moved the ctsn forward. While this makes sense, I was concerned that doing so prevented us from bundling in the case where we had received chunks that moved the ctsn on multiple transports. In those cases, the RFC allows us to select any of the transports having received chunks to bundle the sack on. so I've modified the approach to allow for that, by adding a state variable to each transport that tracks weather it has moved the ctsn since the last sack. This I think keeps our behavior (and performance), close enough to our current profile that I think we can do this without a sysctl knob to enable/disable it. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Vlad Yaseivch <vyasevich@gmail.com> CC: David S. Miller <davem@davemloft.net> CC: linux-sctp@vger.kernel.org Reported-by: Michele Baldessari <michele@redhat.com> Reported-by: sorin serban <sserban@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵John W. Linville2012-06-18
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
| * Merge branch 'for-john' of ↵John W. Linville2012-06-13
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
| | * mac80211: add some missing kernel-docJohannes Berg2012-06-09
| | | | | | | | | | | | | | | | | | | | | | | | Add a few kernel-doc descriptions that were missed during development. Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | Bluetooth: Add support for encryption key refreshJohan Hedberg2012-06-08
| |/ | | | | | | | | | | | | | | | | | | | | With LE/SMP the completion of a security level elavation from medium to high is indicated by a HCI Encryption Key Refresh Complete event. The necessary behavior upon receiving this event is a mix of what's done for auth_complete and encryption_change, which is also where most of the event handling code has been copied from. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
* | net: remove my future former mail addressRémi Denis-Courmont2012-06-17
| | | | | | | | | | | | Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> Cc: Sakari Ailus <sakari.ailus@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Revert "ipv6: Prevent access to uninitialized fib_table_hash via ↵David S. Miller2012-06-16
| | | | | | | | | | | | | | | | | | | | | | /proc/net/ipv6_route" This reverts commit 2a0c451ade8e1783c5d453948289e4a978d417c9. It causes crashes, because now ip6_null_entry is used before it is initialized. Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: Prevent access to uninitialized fib_table_hash via /proc/net/ipv6_routeThomas Graf2012-06-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | /proc/net/ipv6_route reflects the contents of fib_table_hash. The proc handler is installed in ip6_route_net_init() whereas fib_table_hash is allocated in fib6_net_init() _after_ the proc handler has been installed. This opens up a short time frame to access fib_table_hash with its pants down. fib6_init() as a whole can't be moved to an earlier position as it also registers the rtnetlink message handlers which should be registered at the end. Therefore split it into fib6_init() which is run early and fib6_init_late() to register the rtnetlink message handlers. Signed-off-by: Thomas Graf <tgraf@suug.ch> Reviewed-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bonding: Fix corrupted queue_mappingEric Dumazet2012-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the transmit path of the bonding driver, skb->cb is used to stash the skb->queue_mapping so that the bonding device can set its own queue mapping. This value becomes corrupted since the skb->cb is also used in __dev_xmit_skb. When transmitting through bonding driver, bond_select_queue is called from dev_queue_xmit. In bond_select_queue the original skb->queue_mapping is copied into skb->cb (via bond_queue_mapping) and skb->queue_mapping is overwritten with the bond driver queue. Subsequently in dev_queue_xmit, __dev_xmit_skb is called which writes the packet length into skb->cb, thereby overwriting the stashed queue mappping. In bond_dev_queue_xmit (called from hard_start_xmit), the queue mapping for the skb is set to the stashed value which is now the skb length and hence is an invalid queue for the slave device. If we want to save skb->queue_mapping into skb->cb[], best place is to add a field in struct qdisc_skb_cb, to make sure it wont conflict with other layers (eg : Qdiscc, Infiniband...) This patchs also makes sure (struct qdisc_skb_cb)->data is aligned on 8 bytes : netem qdisc for example assumes it can store an u64 in it, without misalignment penalty. Note : we only have 20 bytes left in (struct qdisc_skb_cb)->data[]. The largest user is CHOKe and it fills it. Based on a previous patch from Tom Herbert. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Tom Herbert <therbert@google.com> Cc: John Fastabend <john.r.fastabend@intel.com> Cc: Roland Dreier <roland@kernel.org> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Reorder initialization in ip_route_output to fix gcc warningRoland Dreier2012-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If I build with W=1, for every file that includes <net/route.h>, I get the warning include/net/route.h: In function 'ip_route_output': include/net/route.h:135:3: warning: initialized field overwritten [-Woverride-init] include/net/route.h:135:3: warning: (near initialization for 'fl4') [-Woverride-init] (This is with "gcc (Debian 4.6.3-1) 4.6.3") A fix seems pretty trivial: move the initialization of .flowi4_tos earlier. As far as I can tell, this has no effect on code generation. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | inetpeer: fix a race in inetpeer_gc_worker()Eric Dumazet2012-06-06
|/ | | | | | | | | | | | | | | | | commit 5faa5df1fa2024 (inetpeer: Invalidate the inetpeer tree along with the routing cache) added a race : Before freeing an inetpeer, we must respect a RCU grace period, and make sure no user will attempt to increase refcnt. inetpeer_invalidate_tree() waits for a RCU grace period before inserting inetpeer tree into gc_list and waking the worker. At that time, no concurrent lookup can find a inetpeer in this tree. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cipso: handle CIPSO options correctly when NetLabel is disabledPaul Moore2012-06-01
| | | | | | | | | | | | | | | | | | | | When NetLabel is not enabled, e.g. CONFIG_NETLABEL=n, and the system receives a CIPSO tagged packet it is dropped (cipso_v4_validate() returns non-zero). In most cases this is the correct and desired behavior, however, in the case where we are simply forwarding the traffic, e.g. acting as a network bridge, this becomes a problem. This patch fixes the forwarding problem by providing the basic CIPSO validation code directly in ip_options_compile() without the need for the NetLabel or CIPSO code. The new validation code can not perform any of the CIPSO option label/value verification that cipso_v4_validate() does, but it can verify the basic CIPSO option format. The behavior when NetLabel is enabled is unchanged. Signed-off-by: Paul Moore <pmoore@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-05-31
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking changes from David S. Miller: 1) Fix IPSEC header length calculation for transport mode in ESP. The issue is whether to do the calculation before or after alignment. Fix from Benjamin Poirier. 2) Fix regression in IPV6 IPSEC fragment length calculations, from Gao Feng. This is another transport vs tunnel mode issue. 3) Handle AF_UNSPEC connect()s properly in L2TP to avoid OOPSes. Fix from James Chapman. 4) Fix USB ASIX driver's reception of full sized VLAN packets, from Eric Dumazet. 5) Allow drop monitor (and, more generically, all generic netlink protocols) to be automatically loaded as a module. From Neil Horman. Fix up trivial conflict in Documentation/feature-removal-schedule.txt due to new entries added next to each other at the end. As usual. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits) net/smsc911x: Repair broken failure paths virtio-net: remove useless disable on freeze netdevice: Update netif_dbg for CONFIG_DYNAMIC_DEBUG drop_monitor: Add module alias to enable automatic module loading genetlink: Build a generic netlink family module alias net: add MODULE_ALIAS_NET_PF_PROTO_NAME r6040: Do a Proper deinit at errorpath and also when driver unloads (calling r6040_remove_one) r6040: disable pci device if the subsequent calls (after pci_enable_device) fails skb: avoid unnecessary reallocations in __skb_cow net: sh_eth: fix the rxdesc pointer when rx descriptor empty happens asix: allow full size 8021Q frames to be received rds_rdma: don't assume infiniband device is PCI l2tp: fix oops in L2TP IP sockets for connect() AF_UNSPEC case mac80211: fix ADDBA declined after suspend with wowlan wlcore: fix undefined symbols when CONFIG_PM is not defined mac80211: fix flag check for QoS NOACK frames ath9k_hw: apply internal regulator settings on AR933x ath9k_hw: update AR933x initvals to fix issues with high power devices ath9k: fix a use-after-free-bug when ath_tx_setup_buffer() fails ath9k: stop rx dma before stopping tx ...
| * ipv6: fix incorrect ipsec fragmentGao feng2012-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit ad0081e43a "ipv6: Fragment locally generated tunnel-mode IPSec6 packets as needed" the fragment of packets is incorrect. because tunnel mode needs IPsec headers and trailer for all fragments, while on transport mode it is sufficient to add the headers to the first fragment and the trailer to the last. so modify mtu and maxfraglen base on ipsec mode and if fragment is first or last. with my test,it work well(every fragment's size is the mtu) and does not trigger slow fragment path. Changes from v1: though optimization, mtu_prev and maxfraglen_prev can be delete. replace xfrm mode codes with dst_entry's new frag DST_XFRM_TUNNEL. add fuction ip6_append_data_mtu to make codes clearer. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | memcg: decrement static keys at real destroy timeGlauber Costa2012-05-29
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We call the destroy function when a cgroup starts to be removed, such as by a rmdir event. However, because of our reference counters, some objects are still inflight. Right now, we are decrementing the static_keys at destroy() time, meaning that if we get rid of the last static_key reference, some objects will still have charges, but the code to properly uncharge them won't be run. This becomes a problem specially if it is ever enabled again, because now new charges will be added to the staled charges making keeping it pretty much impossible. We just need to be careful with the static branch activation: since there is no particular preferred order of their activation, we need to make sure that we only start using it after all call sites are active. This is achieved by having a per-memcg flag that is only updated after static_key_slow_inc() returns. At this time, we are sure all sites are active. This is made per-memcg, not global, for a reason: it also has the effect of making socket accounting more consistent. The first memcg to be limited will trigger static_key() activation, therefore, accounting. But all the others will then be accounted no matter what. After this patch, only limited memcgs will have its sockets accounted. [akpm@linux-foundation.org: move enum sock_flag_bits into sock.h, document enum sock_flag_bits, convert memcg_proto_active() and memcg_proto_activated() to test_bit(), redo tcp_update_limit() comment to 80 cols] Signed-off-by: Glauber Costa <glommer@parallels.com> Cc: Tejun Heo <tj@kernel.org> Cc: Li Zefan <lizefan@huawei.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-05-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull more networking updates from David Miller: "Ok, everything from here on out will be bug fixes." 1) One final sync of wireless and bluetooth stuff from John Linville. These changes have all been in his tree for more than a week, and therefore have had the necessary -next exposure. John was just away on a trip and didn't have a change to send the pull request until a day or two ago. 2) Put back some defines in user exposed header file areas that were removed during the tokenring purge. From Stephen Hemminger and Paul Gortmaker. 3) A bug fix for UDP hash table allocation got lost in the pile due to one of those "you got it.. no I've got it.." situations. :-) From Tim Bird. 4) SKB coalescing in TCP needs to have stricter checks, otherwise we'll try to coalesce overlapping frags and crash. Fix from Eric Dumazet. 5) RCU routing table lookups can race with free_fib_info(), causing crashes when we deref the device pointers in the route. Fix by releasing the net device in the RCU callback. From Yanmin Zhang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (293 commits) tcp: take care of overlaps in tcp_try_coalesce() ipv4: fix the rcu race between free_fib_info and ip_route_output_slow mm: add a low limit to alloc_large_system_hash ipx: restore token ring define to include/linux/ipx.h if: restore token ring ARP type to header xen: do not disable netfront in dom0 phy/micrel: Fix ID of KSZ9021 mISDN: Add X-Tensions USB ISDN TA XC-525 gianfar:don't add FCB length to hard_header_len Bluetooth: Report proper error number in disconnection Bluetooth: Create flags for bt_sk() Bluetooth: report the right security level in getsockopt Bluetooth: Lock the L2CAP channel when sending Bluetooth: Restore locking semantics when looking up L2CAP channels Bluetooth: Fix a redundant and problematic incoming MTU check Bluetooth: Add support for Foxconn/Hon Hai AR5BBU22 0489:E03C Bluetooth: Fix EIR data generation for mgmt_device_found Bluetooth: Fix Inquiry with RSSI event mask Bluetooth: improve readability of l2cap_seq_list code Bluetooth: Fix skb length calculation ...
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-nextJohn W. Linville2012-05-22
| |\
| | * Merge branch 'for-upstream' of ↵John W. Linville2012-05-16
| | |\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
| | | * Bluetooth: Create flags for bt_sk()Gustavo Padovan2012-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | defer_setup and suspended are now flags into bt_sk(). Signed-off-by: Gustavo Padovan <gustavo@padovan.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| | | * Bluetooth: Lock the L2CAP channel when sendingMat Martineau2012-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ERTM and streaming mode transmit queue must only be accessed while the L2CAP channel lock is held. Locking the channel before calling l2cap_chan_send ensures that multiple threads cannot simultaneously manipulate the queue when sending and receiving concurrently. L2CAP channel locking had previously moved to the l2cap_chan struct instead of the associated socket, so some of the old socket locking can also be removed in this patch. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * Bluetooth: Fix EIR data generation for mgmt_device_foundVishal Agarwal2012-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mgmt_device_found function expects to receive only the significant part of the EIR data so it needs to be removed before calling the function. This patch adds a new eir_get_length() helper function to calculate the length of the significant part. Signed-off-by: Vishal Agarwal <vishal.agarwal@stericsson.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| | | * Merge git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetoothGustavo Padovan2012-05-16
| | | |\
| | | * | Bluetooth: Refactor L2CAP ERTM and streaming transmit segmentationMat Martineau2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use more common code for ERTM and streaming mode segmentation and transmission, and begin using skb control block data for delaying extended or enhanced header generation until just before the packet is transmitted. This code is also better suited for resegmentation, which is needed when L2CAP links are reconfigured after an AMP channel move. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Enable Low Energy support by defaultMarcel Holtmann2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Bluetooth Low Energy support so far was disabled by default via a module parameter. With this change the module parameter will be removed and Low Energy is enabled by default. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Remove unused hci_le_ltk_neg_reply()Syam Sidhardhan2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No one is using hci_le_ltk_neg_reply() in bluetooth subsystem. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Remove unused hci_le_ltk_reply()Syam Sidhardhan2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In this API, we were using sizeof operator for an array given as function argument, which is invalid. However this API is not used anywhere. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Remove duplicate structure members from bt_skb_cbMat Martineau2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These values are now in the nested l2cap_ctrl struct. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Improve ERTM sequence number offset calculationMat Martineau2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of using modular division, the offset can be calculated using only addition and subtraction. The previous calculation did not work as intended and was more difficult to understand, involving unsigned integer underflow and a check for a negative value where one was not possible. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Remove advertising cacheAndre Guedes2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | User-space pass the remote device address type to kernel through struct sockaddr_l2 what makes the advertising useless. This patch removes all advertising cache code. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: Use address type info from user-spaceAndre Guedes2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to establish a LE connection we need the address type information. User-space already pass this information to kernel through struct sockaddr_l2. This patch adds the dst_type parameter to l2cap_chan_connect so we are able to pass the address type info from user-space down to hci_conn layer. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: Add dst_type parameter to hci_connectAndre Guedes2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the dst_type parameter to hci_connect function. Instead of searching the address type in advertising cache, we use the dst_type parameter to establish LE connections. The dst_type is ignored for BR/EDR connection establishment. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: Move bdaddr_to_le to hci_coreAndre Guedes2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the helper function bdaddr_to_le to hci_core, so it can be used in mgmt.c and hci_conn.c. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: Add address type to struct sockaddr_l2Andre Guedes2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the address type info to struct sockaddr_l2 so user-space can inform the remote device address type required to establish LE connections. Soon, instead of looking the advertising cache up to discover the address type, we'll use this address type info to establish LE connections. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: Move address type macros to bluetooth.hAndre Guedes2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves address type macros to bluetooth.h since they will be used by management interface and Bluetooth socket interface. It also replaces the macro prefix MGMT_ADDR_ by BDADDR_. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: trivial: Remove empty lineAndrei Emeltchenko2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: Remove strtoba header declared but not definedSyam Sidhardhan2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No one is using strtoba() in the bluetooth subsystem. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: remove header declared but not definedSyam Sidhardhan2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hci_del_off_timer() doesn't exist anymore. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Add the l2cap_seq_list structure for tracking framesMat Martineau2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A sequence list is a data structure used to track frames that need to be retransmitted, and frames that have been requested for retransmission by the remote device. It can compactly represent a list of sequence numbers within the ERTM transmit window. Memory for the list is allocated once at connection time, and common operations in ERTM are O(1). Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | Bluetooth: Remove err parameter from alloc_skb()Gustavo Padovan2012-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use ERR_PTR maginc instead. Signed-off-by: Gustavo Padovan <gustavo@padovan.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| | | * | Bluetooth: Adds set_default function in L2CAP setupAndrei Emeltchenko2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some parameters in L2CAP chan are set to default similar way in socket based channels and A2MP channels. Adds common function which sets all defaults. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Remove MGMT_ADDR_INVALID macroAndre Guedes2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the MGMT_ADDR_INVALID macro. If the address type isn't LE, we consider it is BR/EDR type. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| | | * | Bluetooth: Remove sk parameter from l2cap_chan_create()Gustavo Padovan2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Following the separation if core and sock code this change avoid manipulation of sk inside l2cap_chan_create(). Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Add a structure to carry ERTM data in skb control blocksMat Martineau2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Every field from ERTM control headers is now carried in the control block so it only has to be parsed or generated once, and can be efficiently accessed throughout the ERTM code. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Add definitions and struct members for new ERTM state machineMat Martineau2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds some missing values for control field parsing, additional data for the new state machine, and enumerations for states, incoming packet classification, and state machine events. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Comments and style fixesAndrei Emeltchenko2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add comments to timer implementation and style fixes. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Add HCI_PERIODIC_INQ to dev_flagsAndre Guedes2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the HCI_PERIODIC_INQ flag to dev_flags. This flag tracks if periodic inquiry is enabled or not. Signed-off-by: Andre Guedes <aguedespe@gmail.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Add Periodic Inquiry command complete handlerAndre Guedes2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a handler function to Periodic Inquiry command complete event. Signed-off-by: Andre Guedes <aguedespe@gmail.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
| | | * | Bluetooth: Add hci_cancel_le_scan() to hci_coreAndre Guedes2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds to hci_core the hci_cancel_le_scan function which should be used to cancel an ongoing LE scan. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-01 10:45:23 -0400