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2011-05-12mac80211: mesh: move some code to make it staticJohannes Berg3-54/+53
There's no need to have table functions in one file and all users in another, move the functions to the right file and make them static. Also move a static variable to the beginning of the file to make it easier to find. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12cfg80211/mac80211: avoid bounce back mac->cfg->mac on sched_scan_stoppedLuciano Coelho7-28/+42
When sched_scan_stopped was called by the driver, mac80211 calls cfg80211, which in turn was calling mac80211 back with a flag "driver_initiated". This flag was used so that mac80211 would do the necessary cleanup but would not call the driver. This was enough to prevent the bounce back between the driver and mac80211, but not between mac80211 and cfg80211. To fix this, we now do the cleanup in mac80211 before calling cfg80211. To help with locking issues, the workqueue was moved from cfg80211 to mac80211. Reported-by: Johannes Berg <[email protected]> Signed-off-by: Luciano Coelho <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12mac80211: fix a few RCU issuesJohannes Berg1-5/+7
A few configuration functions correctly do rcu_read_lock() but don't correctly reference some pointers protected by RCU. Fix that. Cc: [email protected] Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12mac80211: fix another key non-raceJohannes Berg1-2/+4
The code here is only not racy because all the places that assign the pointers it uses are holding the sta_mtx as well as the key_mtx and so can't race against this because this code holds the sta_mtx. But that's not intuitive, so fix it to hold the key_mtx. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12mac80211: make key locking clearerJohannes Berg3-27/+20
The code in ieee80211_del_key() doesn't acquire the key_mtx properly when it dereferences the keys. It turns out that isn't actually necessary since the key_mtx itself seems to be redundant since all key manipulations are done under the RTNL, but as long as we have the key_mtx we should use it the right way too. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12mac80211: remove pointless mesh path timer RCU codeJohannes Berg1-14/+3
The code here to RCU-dereference a pointer that's on the stack is totally pointless, RCU isn't magic (like say Java's weak references are), so the code can't work like whoever wrote it thought it might. Remove it so readers don't get confused. Note that it seems that a bug is there anyway: I don't see any code that cancels the timer when a mesh path struct is destroyed. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12mac80211: fix contention time computation in minstrel, minstrel_htDaniel Halperin2-8/+23
When transmitting a frame, the transmitter waits a random number of slots between 0 and cw. Thus, the contention time is (cw / 2) * t_slot which we can represent instead as (cw * t_slot) >> 1. Also fix a few other accounting bugs around contention time, and add comments. Signed-off-by: Daniel Halperin <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12cfg80211: restrict AP beacon intervalsJohannes Berg4-17/+52
Multiple virtual AP interfaces can currently try to use different beacon intervals, but that just leads to problems since it won't actually be done that way by drivers. Return an error in this case to make sure it won't be done wrong. Also, ignore attempts to change the DTIM period or beacon interval during the lifetime of the BSS. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-12Merge branch 'master' of ↵John W. Linville6-121/+171
git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-next-2.6
2011-05-12mac80211: Fix mesh-related build breakage...Yogesh Ashok Powar1-0/+2
net/mac80211/cfg.c: In function ‘sta_apply_parameters’: net/mac80211/cfg.c:746: error: ‘struct sta_info’ has no member named ‘plink_state’ make[1]: *** [net/mac80211/cfg.o] Error 1 make: *** [net/mac80211/mac80211.ko] Error 2 Signed-off-by: John W. Linville <[email protected]>
2011-05-12Bluetooth: Remove leftover debug messagesGustavo F. Padovan1-3/+1
They were added by me while testing and I forgot to remove. Signed-off-by: Gustavo F. Padovan <[email protected]>
2011-05-11Revert "Bluetooth: fix shutdown on SCO sockets"Linus Torvalds1-9/+0
This reverts commit f21ca5fff6e548833fa5ee8867239a8378623150. Quoth Gustavo F. Padovan: "Commit f21ca5fff6e548833fa5ee8867239a8378623150 can cause a NULL dereference if we call shutdown in a bluetooth SCO socket and doesn't wait the shutdown completion to call close(). Please revert it. I may have a fix for it soon, but we don't have time anymore, so revert is the way to go. ;)" Requested-by: Gustavo F. Padovan <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-05-11Merge branch 'master' of ↵David S. Miller1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2011-05-11Bluetooth: Add support for disconnecting LE links via mgmtVinicius Costa Gomes1-0/+3
If we can't find a ACL link between the devices, we search the connection list one second time looking for LE links. Signed-off-by: Vinicius Costa Gomes <[email protected]> Signed-off-by: Gustavo F. Padovan <[email protected]>
2011-05-11Bluetooth: Add support for sending connection events for LE linksVinicius Costa Gomes1-1/+4
We need to be able for receive events notifying that the connection was established, the connection attempt failed or that disconnection happened. Signed-off-by: Vinicius Costa Gomes <[email protected]> Signed-off-by: Gustavo F. Padovan <[email protected]>
2011-05-11cfg80211/nl80211: add interval attribute for scheduled scansLuciano Coelho1-0/+10
Introduce NL80211_ATTR_SCHED_SCAN_INTERVAL as a required attribute for NL80211_CMD_START_SCHED_SCAN. This value informs the driver at which intervals the scheduled scan cycles should be executed. Signed-off-by: Luciano Coelho <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: add support for HW scheduled scanLuciano Coelho7-22/+242
Implement support for HW scheduled scan. The mac80211 code doesn't perform scheduled scans itself, but calls the driver to start and stop scheduled scans. This patch also creates a trace event class to be used by drv_hw_scan and the new drv_sched_scan_start and drv_sched_stop functions, in order to avoid duplicate code. Signed-off-by: Luciano Coelho <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11cfg80211/nl80211: add support for scheduled scansLuciano Coelho5-1/+342
Implement new functionality for scheduled scan offload. With this feature we can scan automatically at certain intervals. The idea is that the hardware can perform scan automatically and filter on desired results without waking up the host unnecessarily. Add NL80211_CMD_START_SCHED_SCAN and NL80211_CMD_STOP_SCHED_SCAN commands to the nl80211 interface. When results are available they are reported by NL80211_CMD_SCHED_SCAN_RESULTS events. The userspace is informed when the scheduled scan has stopped with a NL80211_CMD_SCHED_SCAN_STOPPED event, which can be triggered either by the driver or by a call to NL80211_CMD_STOP_SCHED_SCAN. Signed-off-by: Luciano Coelho <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: add a couple of trace event classes to reduce duplicated codeLuciano Coelho1-77/+53
The functions drv_add_interface() and drv_remove_interface() print out the same values in the traces. Combine the traces of these two functions into one event class to remove some duplicate code. Also add a new class for functions drv_set_frag_threshold() and drv_set_rts_threshold(). Cc: Johannes Berg <[email protected]> Signed-off-by: Luciano Coelho <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: Only process mesh PREPs with equal seq number if metric is better.Fabrice Deyber1-1/+0
This fixes routing loops in PREP propagation and is in accordance with Draft 11, Section: 11C.9.8.4. Signed-off-by: Fabrice Deyber <[email protected]> Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: allow setting supported rates on mesh peersJavier Cardona1-2/+0
This is necessary for userspace managed stations. Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: Move call to mpp_path_lookup inside RCU-read sectionJavier Cardona1-1/+2
PROVE_RCU caught that one: [ 431.214070] =================================================== [ 431.215341] [ INFO: suspicious rcu_dereference_check() usage. ] [ 431.215674] --------------------------------------------------- [ 431.216043] net/mac80211/mesh_pathtbl.c:184 invoked rcu_dereference_check() without protection! Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: Fix locking bug on mesh path table accessJavier Cardona1-26/+28
The mesh and mpp path tables are accessed from softirq and workqueue context so non-irq locking cannot be used. Or at least that's what PROVE_RCU seems to tell us here: [ 431.240946] ================================= [ 431.241061] [ INFO: inconsistent lock state ] [ 431.241061] 2.6.39-rc3-wl+ #354 [ 431.241061] --------------------------------- [ 431.241061] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. [ 431.241061] kworker/u:1/1423 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 431.241061] (&(&newtbl->hashwlock[i])->rlock){+.?...}, at: [<c14671bf>] mesh_path_add+0x167/0x257 Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: Check size of a new mesh path table for changes since allocation.Javier Cardona1-3/+6
Not sure if I'm chasing a ghost here, seems like the mesh_path->size_order needs to be inside an RCU-read section to prevent that value from changing between table allocation and copying. We have observed crashes that might be caused by this. Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11nl80211: allow setting MFP flag for a meshifThomas Pedersen1-0/+1
Signed-off-by: Thomas Pedersen <[email protected]> Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11nl80211: allow installing keys for a meshifThomas Pedersen2-1/+5
Signed-off-by: Thomas Pedersen <[email protected]> Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11nl80211: Let userspace drive the peer link management states.Javier Cardona3-32/+27
Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11cfg80211: Use capability info to detect mesh beacons.Javier Cardona1-7/+7
Mesh beacons no longer use all-zeroes BSSID. Beacon frames for MBSS, infrastructure BSS, or IBSS are differentiated by the Capability Information field in the Beacon frame. A mesh STA sets the ESS and IBSS subfields to 0 in transmitted Beacon or Probe Response management frames. Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11open80211s: Stop using zero for address 3 in mesh plink mgmt framesJavier Cardona1-2/+2
Previous versions of 11s draft used the all zeroes address. Current draft uses the same address as address 2. Also, use the ANA-approved action category code for peer establishment frames. Note: This breaks compatibility with previous mesh protocol instances. Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: Drop MESH_PLINK category and use new ANA-approved MESH_ACTIONJavier Cardona3-4/+7
Note: This breaks compatibility with previous mesh protocol instances. Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11mac80211: Let userspace send action frames over mesh interfacesJavier Cardona1-0/+10
Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11nl80211: Introduce NL80211_MESH_SETUP_USERSPACE_AMPEJavier Cardona5-6/+17
Introduce a new configuration option to support AMPE from userspace. Prior to this series we only supported authentication in userspace: an authentication daemon would authenticate peer candidates in userspace and hand them over to the kernel. From that point the mesh stack would take over and establish a peer link (Mesh Peering Management). These patches introduce support for Authenticated Mesh Peering Exchange in userspace. The userspace daemon implements the AMPE protocol and on successfull completion create mesh peers and install encryption keys. Signed-off-by: Javier Cardona <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-11Merge branch 'master' of ↵David S. Miller24-176/+307
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6 Conflicts: drivers/net/benet/be_main.c
2011-05-11Bluetooth: Double check sec req for pre 2.1 deviceWaldemar Rymarkiewicz2-1/+18
In case of pre v2.1 devices authentication request will return success immediately if the link key already exists without any authentication process. That means, it's not possible to re-authenticate the link if you already have combination key and for instance want to re-authenticate to get the high security (use 16 digit pin). Therefore, it's necessary to check security requirements on auth complete event to prevent not enough secure connection. Signed-off-by: Waldemar Rymarkiewicz <[email protected]> Signed-off-by: Gustavo F. Padovan <[email protected]>
2011-05-11Merge branch 'tipc-May10-2011' of ↵David S. Miller14-309/+320
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/net-next-2.6
2011-05-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds25-192/+322
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) slcan: fix ldisc->open retval net/usb: mark LG VL600 LTE modem ethernet interface as WWAN xfrm: Don't allow esn with disabled anti replay detection xfrm: Assign the inner mode output function to the dst entry net: dev_close() should check IFF_UP vlan: fix GVRP at dismantle time netfilter: revert a2361c8735e07322023aedc36e4938b35af31eb0 netfilter: IPv6: fix DSCP mangle code netfilter: IPv6: initialize TOS field in REJECT target module IPVS: init and cleanup restructuring IPVS: Change of socket usage to enable name space exit. netfilter: ebtables: only call xt_compat_add_offset once per rule netfilter: fix ebtables compat support netfilter: ctnetlink: fix timestamp support for new conntracks pch_gbe: support ML7223 IOH PCH_GbE : Fixed the issue of checksum judgment PCH_GbE : Fixed the issue of collision detection NET: slip, fix ldisc->open retval be2net: Fixed bugs related to PVID. ehea: fix wrongly reported speed and port ...
2011-05-10Merge branch 'pablo/nf-2.6-updates' of git://1984.lsi.us.es/net-2.6David S. Miller13-161/+262
2011-05-10xfrm: Don't allow esn with disabled anti replay detectionSteffen Klassert1-0/+3
Unlike the standard case, disabled anti replay detection needs some nontrivial extra treatment on ESN. RFC 4303 states: Note: If a receiver chooses to not enable anti-replay for an SA, then the receiver SHOULD NOT negotiate ESN in an SA management protocol. Use of ESN creates a need for the receiver to manage the anti-replay window (in order to determine the correct value for the high-order bits of the ESN, which are employed in the ICV computation), which is generally contrary to the notion of disabling anti-replay for an SA. So return an error if an ESN state with disabled anti replay detection is inserted for now and add the extra treatment later if we need it. Signed-off-by: Steffen Klassert <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-05-10xfrm: Assign the inner mode output function to the dst entrySteffen Klassert5-6/+24
As it is, we assign the outer modes output function to the dst entry when we create the xfrm bundle. This leads to two problems on interfamily scenarios. We might insert ipv4 packets into ip6_fragment when called from xfrm6_output. The system crashes if we try to fragment an ipv4 packet with ip6_fragment. This issue was introduced with git commit ad0081e4 (ipv6: Fragment locally generated tunnel-mode IPSec6 packets as needed). The second issue is, that we might insert ipv4 packets in netfilter6 and vice versa on interfamily scenarios. With this patch we assign the inner mode output function to the dst entry when we create the xfrm bundle. So xfrm4_output/xfrm6_output from the inner mode is used and the right fragmentation and netfilter functions are called. We switch then to outer mode with the output_finish functions. Signed-off-by: Steffen Klassert <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-05-10net: dev_close() should check IFF_UPEric Dumazet1-4/+6
Commit 443457242beb (factorize sync-rcu call in unregister_netdevice_many) mistakenly removed one test from dev_close() Following actions trigger a BUG : modprobe bonding modprobe dummy ifconfig bond0 up ifenslave bond0 dummy0 rmmod dummy dev_close() must not close a non IFF_UP device. With help from Frank Blaschka and Einar EL Lueck Reported-by: Frank Blaschka <[email protected]> Reported-by: Einar EL Lueck <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-05-10vlan: fix GVRP at dismantle timeEric Dumazet2-3/+3
ip link add link eth2 eth2.103 type vlan id 103 gvrp on loose_binding on ip link set eth2.103 up rmmod tg3 # driver providing eth2 BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp] PGD 11d251067 PUD 11b9e0067 PMD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/virtual/net/eth2.104/ifindex CPU 0 Modules linked in: tg3(-) 8021q garp nfsd lockd auth_rpcgss sunrpc libphy sg [last unloaded: x_tables] Pid: 11494, comm: rmmod Tainted: G W 2.6.39-rc6-00261-gfd71257-dirty #580 HP ProLiant BL460c G6 RIP: 0010:[<ffffffffa0030c9e>] [<ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp] RSP: 0018:ffff88007a19bae8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88011b5e2000 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000175 RDI: ffffffffa0030d5b RBP: ffff88007a19bb18 R08: 0000000000000001 R09: ffff88011bd64a00 R10: ffff88011d34ec00 R11: 0000000000000000 R12: 0000000000000002 R13: ffff88007a19bc48 R14: ffff88007a19bb88 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88011fc00000(0063) knlGS:00000000f77d76c0 CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000011a675000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process rmmod (pid: 11494, threadinfo ffff88007a19a000, task ffff8800798595c0) Stack: ffff88007a19bb36 ffff88011c84b800 ffff88011b5e2000 ffff88007a19bc48 ffff88007a19bb88 0000000000000006 ffff88007a19bb38 ffffffffa003a5f6 ffff88007a19bb38 670088007a19bba8 ffff88007a19bb58 ffffffffa00397e7 Call Trace: [<ffffffffa003a5f6>] vlan_gvrp_request_leave+0x46/0x50 [8021q] [<ffffffffa00397e7>] vlan_dev_stop+0xb7/0xc0 [8021q] [<ffffffff8137e427>] __dev_close_many+0x87/0xe0 [<ffffffff8137e507>] dev_close_many+0x87/0x110 [<ffffffff8137e630>] rollback_registered_many+0xa0/0x240 [<ffffffff8137e7e9>] unregister_netdevice_many+0x19/0x60 [<ffffffffa00389eb>] vlan_device_event+0x53b/0x550 [8021q] [<ffffffff8143f448>] ? ip6mr_device_event+0xa8/0xd0 [<ffffffff81479d03>] notifier_call_chain+0x53/0x80 [<ffffffff81062539>] __raw_notifier_call_chain+0x9/0x10 [<ffffffff81062551>] raw_notifier_call_chain+0x11/0x20 [<ffffffff8137df82>] call_netdevice_notifiers+0x32/0x60 [<ffffffff8137e69f>] rollback_registered_many+0x10f/0x240 [<ffffffff8137e85f>] rollback_registered+0x2f/0x40 [<ffffffff8137e8c8>] unregister_netdevice_queue+0x58/0x90 [<ffffffff8137e9eb>] unregister_netdev+0x1b/0x30 [<ffffffffa005d73f>] tg3_remove_one+0x6f/0x10b [tg3] We should call vlan_gvrp_request_leave() from unregister_vlan_dev(), not from vlan_dev_stop(), because vlan_gvrp_uninit_applicant() is called right after unregister_netdevice_queue(). In batch mode, unregister_netdevice_queue() doesn’t immediately call vlan_dev_stop(). Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-05-10net: fix two lockdep splatsEric Dumazet1-2/+2
Commit e67f88dd12f6 (net: dont hold rtnl mutex during netlink dump callbacks) switched rtnl protection to RCU, but we forgot to adjust two rcu_dereference() lockdep annotations : inet_get_link_af_size() or inet_fill_link_af() might be called with rcu_read_lock or rtnl held, so use rcu_dereference_rtnl() instead of rtnl_dereference() Reported-by: Valdis Kletnieks <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-05-10net: Allow setting the network namespace by fdEric W. Biederman2-3/+35
Take advantage of the new abstraction and allow network devices to be placed in any network namespace that we have a fd to talk about. Acked-by: David S. Miller <[email protected]> Acked-by: Daniel Lezcano <[email protected]> Signed-off-by: Eric W. Biederman <[email protected]>
2011-05-10ns proc: Add support for the network namespace.Eric W. Biederman1-0/+31
Implementing file descriptors for the network namespace is simple and straight forward. Acked-by: David S. Miller <[email protected]> Acked-by: Daniel Lezcano <[email protected]> Signed-off-by: Eric W. Biederman <[email protected]>
2011-05-10ipv4: xfrm: Eliminate ->rt_src reference in policy code.David S. Miller1-13/+21
Rearrange xfrm4_dst_lookup() so that it works by calling a helper function __xfrm_dst_lookup() that takes an explicit flow key storage area as an argument. Use this new helper in xfrm4_get_saddr() so we can fetch the selected source address from the flow instead of from rt->rt_src Signed-off-by: David S. Miller <[email protected]>
2011-05-10sctp: Remove rt->rt_src usage in sctp_v4_get_saddr()David S. Miller1-1/+1
Flow key is available, so fetch it from there. Signed-off-by: David S. Miller <[email protected]>
2011-05-10ipv4: udp: Eliminate remaining uses of rt->rt_srcDavid S. Miller1-7/+6
We already track and pass around the correct flow key, so simply use it in udp_send_skb(). Signed-off-by: David S. Miller <[email protected]>
2011-05-10ipv4: icmp: Eliminate remaining uses of rt->rt_srcDavid S. Miller1-3/+3
On input packets, rt->rt_src always equals ip_hdr(skb)->saddr Anything that mangles or otherwise changes the IP header must relookup the route found at skb_rtable(). Therefore this invariant must always hold true. Signed-off-by: David S. Miller <[email protected]>
2011-05-10ipv4: Pass explicit daddr arg to ip_send_reply().David S. Miller2-6/+5
This eliminates an access to rt->rt_src. Signed-off-by: David S. Miller <[email protected]>
2011-05-10tipc: Revise timings used when sending link request messagesAllan Stephens1-30/+36
Revises the algorithm governing the sending of link request messages to take into account the number of nodes each bearer is currently in contact with, and to ensure more rapid rediscovery of neighboring nodes if a bearer fails and then recovers. The discovery object now sends requests at least once a second if it is not in contact with any other nodes, and at least once a minute if it has at least one neighbor; if contact with the only neighbor is lost, the object immediately reverts to its initial rapid-fire search timing to accelerate the rediscovery process. In addition, the discovery object now stops issuing link request messages if it is in contact with the only neighboring node it is configured to communicate with, since further searching is unnecessary. Signed-off-by: Allan Stephens <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]>
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