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path: root/net/bluetooth/hci_sock.c
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* Bluetooth: Improve handling of HCI control channel in bindGustavo F. Padovan2010-12-221-1/+4
| | | | | | | Does not allow any channel different of HCI_CHANNEL_RAW and HCI_CHANNEL_CONTROL to bind. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
* Bluetooth: Make hci_send_to_sock usable for management control socketsJohan Hedberg2010-12-071-1/+9
| | | | | | | | | | | | | | | | In order to send data to management control sockets the function should: - skip checks intended for raw HCI data and stack internal events - make sure RAW HCI data or stack internal events don't go to management control sockets In order to accomplish this the patch adds a new member to the bluetooth skb private data to flag skb's that are destined for management control sockets. Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
* Bluetooth: Add initial Bluetooth Management interface callbacksJohan Hedberg2010-12-071-6/+33
| | | | | | | | | Add initial code for handling Bluetooth Management interface messages. Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
* Bluetooth: clean up hci codeAndrei Emeltchenko2010-12-011-6/+11
| | | | | | | | Do not use assignment in IF condition, remove extra spaces, fixing typos, simplify code. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
* Bluetooth: Use list_head for HCI blacklist headDavid Miller2010-07-311-5/+3
| | | | | | | | | The bdaddr in the list root is completely unused and just taking up space. Signed-off-by: David S. Miller <davem@davemloft.net> Tested-by: Johan Hedberg <johan.hedberg@nokia.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add blacklist support for incoming connectionsJohan Hedberg2010-07-211-0/+90
| | | | | | | | | | | In some circumstances it could be desirable to reject incoming connections on the baseband level. This patch adds this feature through two new ioctl's: HCIBLOCKADDR and HCIUNBLOCKADDR. Both take a simple Bluetooth address as a parameter. BDADDR_ANY can be used with HCIUNBLOCKADDR to remove all devices from the blacklist. Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Fix out of scope variable access in hci_sock_cmsg()Johann Felix Soden2010-02-281-1/+3
| | | | | | | | The pointer data can point to the variable ctv. Access to data happens when ctv is already out of scope. Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Unobfuscate tasklet_schedule usageMarcel Holtmann2009-12-031-3/+3
| | | | | | | The tasklet schedule function helpers are just an obfuscation. So remove them and call the schedule functions directly. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Return ENETDOWN when interface is downMarcel Holtmann2009-12-031-0/+5
| | | | | | | | Sending commands to a down interface results in a timeout while clearly it should just return ENETDOWN. When using the ioctls this works fine, but not when using the HCI sockets sendmsg interface. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* net: pass kern to net_proto_family create functionEric Paris2009-11-051-1/+2
| | | | | | | | | | | The generic __sock_create function has a kern argument which allows the security system to make decisions based on if a socket is being created by the kernel or by userspace. This patch passes that flag to the net_proto_family specific create function, so it can do the same thing. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mark net_proto_ops as constStephen Hemminger2009-10-071-1/+1
| | | | | | | All usages of structure net_proto_ops should be declared const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Make setsockopt() optlen be unsigned.David S. Miller2009-09-301-1/+1
| | | | | | | | | | | | This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
* Bluetooth: Enable per-module dynamic debug messagesMarcel Holtmann2008-11-301-5/+0
| | | | | | | | | | | With the introduction of CONFIG_DYNAMIC_PRINTK_DEBUG it is possible to allow debugging without having to recompile the kernel. This patch turns all BT_DBG() calls into pr_debug() to support dynamic debug messages. As a side effect all CONFIG_BT_*_DEBUG statements are now removed and some broken debug entries have been fixed. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* [Bluetooth] Export details about authentication requirementsMarcel Holtmann2008-07-141-13/+5
| | | | | | | | | | | | | With the Simple Pairing support, the authentication requirements are an explicit setting during the bonding process. Track and enforce the requirements and allow higher layers like L2CAP and RFCOMM to increase them if needed. This patch introduces a new IOCTL that allows to query the current authentication requirements. It is also possible to detect Simple Pairing support in the kernel this way. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* bluetooth: use get/put_unaligned_* helpersHarvey Harrison2008-05-021-1/+1
| | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* bluetooth: replace deprecated RW_LOCK_UNLOCKED macrosRobert P. J. Day2008-03-281-1/+1
| | | | | | | | | | The older RW_LOCK_UNLOCKED macros defeat lockdep state tracing so replace them with the newer __RW_LOCK_UNLOCKED macros. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* bluetooth: Make hci_sock_cleanup() return voidTobias Klauser2008-03-051-3/+1
| | | | | | | | | | | hci_sock_cleanup() always returns 0 and its return value isn't used anywhere in the code. Compile-tested with 'make allyesconfig && make net/bluetooth/bluetooth.ko' Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Marcel Holtmann <marcel@holtmann.org>
* [NET]: Forget the zero_it argument of sk_alloc()Pavel Emelyanov2007-11-011-1/+1
| | | | | | | | | | | | | | | Finally, the zero_it argument can be completely removed from the callers and from the function prototype. Besides, fix the checkpatch.pl warnings about using the assignments inside if-s. This patch is rather big, and it is a part of the previous one. I splitted it wishing to make the patches more readable. Hope this particular split helped. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [Bluetooth] Switch from OGF+OCF to using only opcodesMarcel Holtmann2007-10-221-1/+1
| | | | | | | | | | | | The Bluetooth HCI commands are divided into logical OGF groups for easier identification of their purposes. While this still makes sense for the written specification, its makes the code only more complex and harder to read. So instead of using separate OGF and OCF values to identify the commands, use a common 16-bit opcode that combines both values. As a side effect this also reduces the complexity of OGF and OCF calculations during command header parsing. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* [NET]: Make socket creation namespace safe.Eric W. Biederman2007-10-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | This patch passes in the namespace a new socket should be created in and has the socket code do the appropriate reference counting. By virtue of this all socket create methods are touched. In addition the socket create methods are modified so that they will fail if you attempt to create a socket in a non-default network namespace. Failing if we attempt to create a socket outside of the default network namespace ensures that as we incrementally make the network stack network namespace aware we will not export functionality that someone has not audited and made certain is network namespace safe. Allowing us to partially enable network namespaces before all of the exotic protocols are supported. Any protocol layers I have missed will fail to compile because I now pass an extra parameter into the socket creation code. [ Integrated AF_IUCV build fixes from Andrew Morton... -DaveM ] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BLUETOOTH]: Fix non-COMPAT build of hci_sock.cDavid S. Miller2007-09-121-3/+4
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [Bluetooth] Update security filter for Bluetooth 2.1Marcel Holtmann2007-09-091-5/+5
| | | | | | | This patch updates the HCI security filter with support for the Bluetooth 2.1 commands and events. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* [Bluetooth] Add compat handling for timestamp structureMarcel Holtmann2007-09-091-1/+16
| | | | | | | The timestamp structure needs special handling in case of compat programs. Use the same wrapping method the network core uses. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* [BLUETOOTH]: Fix locking in hci_sock_dev_event().Satyam Sharma2007-05-171-2/+4
| | | | | | | | | | | | | | | | | | | | We presently use lock_sock() to acquire a lock on a socket in hci_sock_dev_event(), but this goes BUG because lock_sock() can sleep and we're already holding a read-write spinlock at that point. So, we must use the non-sleeping BH version, bh_lock_sock(). However, hci_sock_dev_event() is called from user context and hence using simply bh_lock_sock() will deadlock against a concurrent softirq that tries to acquire a lock on the same socket. Hence, disabling BH's before acquiring the socket lock and enable them afterwards, is the proper solution to fix socket locking in hci_sock_dev_event(). Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
* [Bluetooth] Fix L2CAP and HCI setsockopt() information leaksMarcel Holtmann2007-05-051-0/+9
| | | | | | | | | | | | | | The L2CAP and HCI setsockopt() implementations have a small information leak that makes it possible to leak kernel stack memory to userspace. If the optlen parameter is 0, no data will be copied by copy_from_user(), but the uninitialized stack buffer will be read and stored later. A call to getsockopt() can now retrieve the leaked information. To fix this problem the stack buffer given to copy_from_user() must be initialized with the current settings. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* [SK_BUFF]: Introduce skb_reset_transport_header(skb)Arnaldo Carvalho de Melo2007-04-251-1/+1
| | | | | | | | | | | | | | | | For the common, open coded 'skb->h.raw = skb->data' operation, so that we can later turn skb->h.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple cases: skb->h.raw = skb->data; skb->h.raw = {skb_push|[__]skb_pull}() The next ones will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] bluetooth: fix socket locking in hci_sock_dev_event()Jiri Kosina2007-03-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [Bluetooth] Fix socket locking in hci_sock_dev_event() hci_sock_dev_event() uses bh_lock_sock() to lock the socket lock. This is not deadlock-safe against locking of the same socket lock in l2cap_connect_cfm() from softirq context. In addition to that, hci_sock_dev_event() doesn't seem to be called from softirq context, so it is safe to use lock_sock()/release_sock() instead. The lockdep warning can be triggered on my T42p simply by switching the Bluetooth off by the keyboard button. ================================= [ INFO: inconsistent lock state ] 2.6.21-rc2 #4 --------------------------------- inconsistent {in-softirq-W} -> {softirq-on-W} usage. khubd/156 [HC0[0]:SC0[0]:HE1:SE1] takes: (slock-AF_BLUETOOTH){-+..}, at: [<e0ca5520>] hci_sock_dev_event+0xa8/0xc5 [bluetooth] {in-softirq-W} state was registered at: [<c012d1db>] mark_lock+0x59/0x414 [<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap] [<c012dfd7>] __lock_acquire+0x3e5/0xb99 [<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap] [<c012e7f2>] lock_acquire+0x67/0x81 [<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap] [<c036ee72>] _spin_lock+0x29/0x34 [<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap] [<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap] [<e0ca17c3>] hci_send_cmd+0x126/0x14f [bluetooth] [<e0ca4ce4>] hci_event_packet+0x729/0xebd [bluetooth] [<e0ca205b>] hci_rx_task+0x2a/0x20f [bluetooth] [<e0ca209d>] hci_rx_task+0x6c/0x20f [bluetooth] [<c012d7be>] trace_hardirqs_on+0x10d/0x14e [<c011ac85>] tasklet_action+0x3d/0x68 [<c011abba>] __do_softirq+0x41/0x92 [<c011ac32>] do_softirq+0x27/0x3d [<c0105134>] do_IRQ+0x7b/0x8f [<c0103dec>] common_interrupt+0x24/0x34 [<c0103df6>] common_interrupt+0x2e/0x34 [<c0248e65>] acpi_processor_idle+0x1b3/0x34a [<c0248e68>] acpi_processor_idle+0x1b6/0x34a [<c010232b>] cpu_idle+0x39/0x4e [<c04bab0c>] start_kernel+0x372/0x37a [<c04ba42b>] unknown_bootoption+0x0/0x202 [<ffffffff>] 0xffffffff Signed-off-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET] BLUETOOTH: Fix whitespace errors.YOSHIFUJI Hideaki2007-02-101-14/+14
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] hci endianness annotationsAl Viro2006-12-131-2/+2
| | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [BLUETOOTH]: Fix unaligned access in hci_send_to_sock.David S. Miller2006-11-211-4/+7
| | | | | | | | | The "u16 *" derefs of skb->data need to be wrapped inside of a get_unaligned(). Thanks to Gustavo Zacarias for the bug report. Signed-off-by: David S. Miller <davem@davemloft.net>
* [Bluetooth] Add locking for bt_proto array manipulationMarcel Holtmann2006-10-151-1/+1
| | | | | | | | | | | The bt_proto array needs to be protected by some kind of locking to prevent a race condition between bt_sock_create and bt_sock_register. And in addition all calls to sk_alloc need to be made GFP_ATOMIC now. Signed-off-by: Masatake YAMATO <jet@gyve.org> Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [Bluetooth] Fix NULL pointer dereferences of the HCI socketMarcel Holtmann2006-02-131-2/+8
| | | | | | | | | This patch fixes the two NULL pointer dereferences found by the sfuzz tool from Ilja van Sprundel. The first one was a call of getsockname() for an unbound socket and the second was calling accept() while this operation isn't implemented for the HCI socket interface. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* [PATCH] capable/capability.h (net/)Randy Dunlap2006-01-111-0/+1
| | | | | | | | net: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: move struct proto_ops to constEric Dumazet2006-01-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | I noticed that some of 'struct proto_ops' used in the kernel may share a cache line used by locks or other heavily modified data. (default linker alignement is 32 bytes, and L1_CACHE_LINE is 64 or 128 at least) This patch makes sure a 'struct proto_ops' can be declared as const, so that all cpus can share all parts of it without false sharing. This is not mandatory : a driver can still use a read/write structure if it needs to (and eventually a __read_mostly) I made a global stubstitute to change all existing occurences to make them const. This should reduce the possibility of false sharing on SMP, and speedup some socket system calls. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [Bluetooth]: Add endian annotations to the coreMarcel Holtmann2005-11-081-1/+1
| | | | | | | This patch adds the endian annotations to the Bluetooth core. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [Bluetooth] Update security filter for Extended Inquiry ResponseMarcel Holtmann2005-10-281-6/+6
| | | | | | | This patch updates the HCI security filter with support for the Extended Inquiry Response (EIR) feature. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* [NET]: Store skb->timestamp as offset to a base timestampPatrick McHardy2005-08-291-2/+6
| | | | | | | Reduces skb size by 8 bytes on 64-bit. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [Bluetooth]: Move packet type into the SKB control bufferMarcel Holtmann2005-08-291-8/+10
| | | | | | | | | This patch moves the usage of packet type into the SKB control buffer. After this patch it is now possible to shrink the sk_buff structure and redefine its pkt_type. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] kill gratitious includes of major.h under net/*Al Viro2005-04-251-1/+0
| | | | | | | | | | | | | | | | A lot of places in there are including major.h for no reason whatsoever. Removed. And yes, it still builds. The history of that stuff is often amusing. E.g. for net/core/sock.c the story looks so, as far as I've been able to reconstruct it: we used to need major.h in net/socket.c circa 1.1.early. In 1.1.13 that need had disappeared, along with register_chrdev(SOCKET_MAJOR, "socket", &net_fops) in sock_init(). Include had not. When 1.2 -> 1.3 reorg of net/* had moved a lot of stuff from net/socket.c to net/core/sock.c, this crap had followed... Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+707
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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