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path: root/net/bluetooth/hci_sock.c
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2014-03-12Bluetooth: Convert uses of __constant_<foo> to <foo>Joe Perches
The use of __constant_<foo> has been unnecessary for quite awhile now. Make these uses consistent with the rest of the kernel. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-02-17Bluetooth: Add missing index added event on user channel failureMarcel Holtmann
When the setup of user channel fails, the index added event is not sent and will cause issues with user interaction. This problem can be easily triggered with a LE only controller without a public address. In that case hci_dev_open() fails and that error case is not sending an event saying that the controller is available for normal use again. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-12-18Merge branch 'for-upstream' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
2013-12-17Bluetooth: Fix HCI User Channel permission check in hci_sock_sendmsgMarcel Holtmann
The HCI User Channel is an admin operation which enforces CAP_NET_ADMIN when binding the socket. Problem now is that it then requires also CAP_NET_RAW when calling into hci_sock_sendmsg. This is not intended and just an oversight since general HCI sockets (which do not require special permission to bind) and HCI User Channel share the same code path here. Remove the extra CAP_NET_RAW check for HCI User Channel write operation since the permission check has already been enforced when binding the socket. This also makes it possible to open HCI User Channel from a privileged process and then hand the file descriptor to an unprivilged process. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Tested-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-11-20net: rework recvmsg handler msg_name and msg_namelen logicHannes Frederic Sowa
This patch now always passes msg->msg_namelen as 0. recvmsg handlers must set msg_namelen to the proper size <= sizeof(struct sockaddr_storage) to return msg_name to the user. This prevents numerous uninitialized memory leaks we had in the recvmsg handlers and makes it harder for new code to accidentally leak uninitialized memory. Optimize for the case recvfrom is called with NULL as address. We don't need to copy the address at all, so set it to NULL before invoking the recvmsg handler. We can do so, because all the recvmsg handlers must cope with the case a plain read() is called on them. read() also sets msg_name to NULL. Also document these changes in include/linux/net.h as suggested by David Miller. Changes since RFC: Set msg->msg_name = NULL if user specified a NULL in msg_name but had a non-null msg_namelen in verify_iovec/verify_compat_iovec. This doesn't affect sendto as it would bail out earlier while trying to copy-in the address. It also more naturally reflects the logic by the callers of verify_iovec. With this change in place I could remove " if (!uaddr || msg_sys->msg_namelen == 0) msg->msg_name = NULL ". This change does not alter the user visible error logic as we ignore msg_namelen as long as msg_name is NULL. Also remove two unnecessary curly brackets in ___sys_recvmsg and change comments to netdev style. Cc: David Miller <davem@davemloft.net> Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18Bluetooth: Use BDADDR_BREDR type for old blacklist ioctl interfaceMarcel Holtmann
The old blacklist ioctl interface was only able to operate on BR/EDR addresses. So use the BDADDR_BREDR address type definition instead of an open coded magic 0 value. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-11Bluetooth: Move skb->dev assignment for hdev->send into central placeMarcel Holtmann
The assignement of skb->dev is done all over the place. So it makes it hard to eventually get rid of it. Move it all in one central place so it gets assigned right before calling hdev->send driver callback. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-10Bluetooth: Remove hdev->ioctl driver callbackMarcel Holtmann
Since there is no use of hdev->ioctl by any Bluetooth driver since ever, so just lets remove it. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-10Bluetooth: AMP contollers do not support the legacy ioctlsMarcel Holtmann
The legacy ioctls for device specific commands including inquiry are not support by AMP controllers. So just reject them right away instead of trying to send the HCI command and wait for failure from the actual hardware. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-02Bluetooth: Require CAP_NET_ADMIN for HCI User Channel operationMarcel Holtmann
The HCI User Channel operation is an admin operation that puts the device into promiscuous mode for single use. It is more suitable to require CAP_NET_ADMIN than CAP_NET_RAW. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-09-16Bluetooth: Introduce new HCI socket channel for user operationMarcel Holtmann
This patch introcuces a new HCI socket channel that allows user applications to take control over a specific HCI device. The application gains exclusive access to this device and forces the kernel to stay away and not manage it. In case of the management interface it will actually hide the device. Such operation is useful for security testing tools that need to operate underneath the Bluetooth stack and need full control over a device. The advantage here is that the kernel still provides the service of hardware abstraction and HCI level access. The use of Bluetooth drivers for hardware access also means that sniffing tools like btmon or hcidump are still working and the whole set of transaction can be traced with existing tools. With the new channel it is possible to send HCI commands, ACL and SCO data packets and receive HCI events, ACL and SCO packets from the device. The format follows the well established H:4 protocol. The new HCI user channel can only be established when a device has been through its setup routine and is currently powered down. This is enforced to not cause any problems with current operations. In addition only one user channel per HCI device is allowed. It is exclusive access for one user application. Access to this channel is limited to process with CAP_NET_RAW capability. Using this new facility does not require any external library or special ioctl or socket filters. Just create the socket and bind it. After that the file descriptor is ready to speak H:4 protocol. struct sockaddr_hci addr; int fd; fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); memset(&addr, 0, sizeof(addr)); addr.hci_family = AF_BLUETOOTH; addr.hci_dev = 0; addr.hci_channel = HCI_CHANNEL_USER; bind(fd, (struct sockaddr *) &addr, sizeof(addr)); The example shows on how to create a user channel for hci0 device. Error handling has been left out of the example. However with the limitations mentioned above it is advised to handle errors. Binding of the user cahnnel socket can fail for various reasons. Specifically if the device is currently activated by BlueZ or if the access permissions are not present. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Introduce user channel flag for HCI devicesMarcel Holtmann
This patch introduces a new user channel flag that allows to give full control of a HCI device to a user application. The kernel will stay away from the device and does not allow any further modifications of the device states. The existing raw flag is not used since it has a bit of unclear meaning due to its legacy. Using a new flag makes the code clearer. A device with the user channel flag set can still be enumerate using the legacy API, but it does not longer enumerate using the new management interface used by BlueZ 5 and beyond. This is intentional to not confuse users of modern systems. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Restrict ioctls to HCI raw channel socketsMarcel Holtmann
The various legacy ioctls used with HCI sockets are limited to raw channel only. They are not used on the other channels and also have no meaning there. So return an error if tried to use them. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Fix error handling for HCI socket optionsMarcel Holtmann
The HCI sockets for monitor and control do not support any HCI specific socket options and if tried, an error will be returned. However the error used is EINVAL and that is not really descriptive. To make it clear that these sockets are not handling HCI socket options, return EBADFD instead. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Fix handling of getsockname() for HCI socketsMarcel Holtmann
The hci_dev check is not protected and so move it into the socket lock. In addition return the HCI channel identifier instead of always 0 channel. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Fix handling of getpeername() for HCI socketsMarcel Holtmann
The HCI sockets do not have a peer associated with it and so make sure that getpeername() returns EOPNOTSUPP since this operation is actually not supported on HCI sockets. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Refactor raw socket filter into more readable codeMarcel Holtmann
The handling of the raw socket filter is rather obscure code and it gets in the way of future extensions. Instead of inline filtering in the raw socket packet routine, refactor it into its own function. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-05-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS updates from Al Viro, Misc cleanups all over the place, mainly wrt /proc interfaces (switch create_proc_entry to proc_create(), get rid of the deprecated create_proc_read_entry() in favor of using proc_create_data() and seq_file etc). 7kloc removed. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits) don't bother with deferred freeing of fdtables proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h proc: Make the PROC_I() and PDE() macros internal to procfs proc: Supply a function to remove a proc entry by PDE take cgroup_open() and cpuset_open() to fs/proc/base.c ppc: Clean up scanlog ppc: Clean up rtas_flash driver somewhat hostap: proc: Use remove_proc_subtree() drm: proc: Use remove_proc_subtree() drm: proc: Use minor->index to label things, not PDE->name drm: Constify drm_proc_list[] zoran: Don't print proc_dir_entry data in debug reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show() proc: Supply an accessor for getting the data from a PDE's parent airo: Use remove_proc_subtree() rtl8192u: Don't need to save device proc dir PDE rtl8187se: Use a dir under /proc/net/r8180/ proc: Add proc_mkdir_data() proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h} proc: Move PDE_NET() to fs/proc/proc_net.c ...
2013-04-09bluetooth: kill unused 'module' argument of bt_procfs_init()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-03-08Bluetooth: Fix stand-alone HCI command handlingJohan Hedberg
To have a consistent content for hdev->cmd_q all entries need to follow the semantics of asynchronous HCI requests. This means that even single commands need to be dressed as requests by having a request start indicator. This patch adds these indicators to the two places needing it (hci_send_cmd and hci_sock_sendmsg). Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-03-08Bluetooth: discard bt_sock_unregister() errorsDavid Herrmann
After we successfully registered a socket via bt_sock_register() there is no reason to ever check the return code of bt_sock_unregister(). If bt_sock_unregister() fails, it means the socket _is_ already unregistered so we have what we want, don't we? Also, to get bt_sock_unregister() to fail, another part of the kernel has to unregister _our_ socket. This is sooo _wrong_ that it will break way earlier than when we unregister our socket. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-02-27hlist: drop the node parameter from iteratorsSasha Levin
I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/team/team.c drivers/net/usb/qmi_wwan.c net/batman-adv/bat_iv_ogm.c net/ipv4/fib_frontend.c net/ipv4/route.c net/l2tp/l2tp_netlink.c The team, fib_frontend, route, and l2tp_netlink conflicts were simply overlapping changes. qmi_wwan and bat_iv_ogm were of the "use HEAD" variety. With help from Antonio Quartulli. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-21net: change return values from -EACCES to -EPERMZhao Hongjiang
Change return value from -EACCES to -EPERM when the permission check fails. Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-08-15Bluetooth: HCI - Fix info leak via getsockname()Mathias Krause
The HCI code fails to initialize the hci_channel member of struct sockaddr_hci and that for leaks two bytes kernel stack via the getsockname() syscall. Initialize hci_channel with 0 to avoid the info leak. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-15Bluetooth: HCI - Fix info leak in getsockopt(HCI_FILTER)Mathias Krause
The HCI code fails to initialize the two padding bytes of struct hci_ufilter before copying it to userland -- that for leaking two bytes kernel stack. Add an explicit memset(0) before filling the structure to avoid the info leak. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-06Bluetooth: Added /proc/net/hci via bt_procfs_init()Masatake YAMATO
Added /proc/net/hci via bt_procfs_init(). Signed-off-by: Masatake YAMATO <yamato@redhat.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05Bluetooth: Remove unnecessary headers includeGustavo Padovan
Most of the include were unnecessary or already included by some other header. Replace module.h by export.h where possible. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05Bluetooth: Fix coding style in the subsystemGustavo Padovan
This is some leftover from the last patches that fixed style. It is mostly line over 80 characters fixes reported by checkpatch.pl. checkpatch.pl is clean for these files now. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05Bluetooth: Remove 'register' usage from the subsystemGustavo Padovan
Let the compiler chooses what is best. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05Bluetooth: Remove most of the inline usageGustavo Padovan
Only obvious cases were left as inline, mostly oneline functions. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05Bluetooth: Fix coding style in hci_sock.cGustavo Padovan
Follow the net subsystem rules. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-03-29Merge branch 'x86-x32-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x32 support for x86-64 from Ingo Molnar: "This tree introduces the X32 binary format and execution mode for x86: 32-bit data space binaries using 64-bit instructions and 64-bit kernel syscalls. This allows applications whose working set fits into a 32 bits address space to make use of 64-bit instructions while using a 32-bit address space with shorter pointers, more compressed data structures, etc." Fix up trivial context conflicts in arch/x86/{Kconfig,vdso/vma.c} * 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits) x32: Fix alignment fail in struct compat_siginfo x32: Fix stupid ia32/x32 inversion in the siginfo format x32: Add ptrace for x32 x32: Switch to a 64-bit clock_t x32: Provide separate is_ia32_task() and is_x32_task() predicates x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls x86/x32: Fix the binutils auto-detect x32: Warn and disable rather than error if binutils too old x32: Only clear TIF_X32 flag once x32: Make sure TS_COMPAT is cleared for x32 tasks fs: Remove missed ->fds_bits from cessation use of fd_set structs internally fs: Fix close_on_exec pointer in alloc_fdtable x32: Drop non-__vdso weak symbols from the x32 VDSO x32: Fix coding style violations in the x32 VDSO code x32: Add x32 VDSO support x32: Allow x32 to be configured x32: If configured, add x32 system calls to system call tables x32: Handle process creation x32: Signal-related system calls x86: Add #ifdef CONFIG_COMPAT to <asm/sys_ia32.h> ...
2012-03-28Remove all #inclusions of asm/system.hDavid Howells
Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-03Bluetooth: Remove HCI_PI_MGMT_INIT flag for socketsJohan Hedberg
This flag is of no use right now and is in fact harmful in that it prevents the HCI_MGMT flag to be set for any controllers that may need it after the first one that bluetoothd takes into use (the flag is cleared for the first controller so any subsequent ones through the same bluetoothd mgmt socket never get the HCI_MGMT flag set). Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-23Bluetooth: Enable timestamps for control channelMarcel Holtmann
The control channel can be also monitored, so include timestamps here as well. And make sure management events get their timestamp when they are created. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Always enable management interfaceMarcel Holtmann
The management interface API has reached stable version 1.0 and thus it can now be always enabled. All future changes will be made backwards compatible. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Restrict access to management interfaceMarcel Holtmann
The management interface on the HCI control channel should be restricted to applications with CAP_NET_ADMIN permission. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Add support for HCI monitor channelMarcel Holtmann
The HCI monitor channel can be used to monitor all packets and events from the Bluetooth subsystem. The monitor is not bound to any specific HCI device and allows even capturing multiple devices at the same time. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20compat: Use COMPAT_USE_64BIT_TIME in the Bluetooth subsystemH. J. Lu
Enable the Bluetooth subsystem to be used with a compat ABI with 64-bit time. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo F. Padovan <padovan@profusion.mobi> Cc: David S. Miller <davem@davemloft.net>
2012-02-20Bluetooth: Remove HCI notifier handlingMarcel Holtmann
The HCI notifier handling was never used outside of Bluetooth core layer and thus remove it and replace it with direct function calls. Also move the stack internal event generation into the HCI socket layer. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Fix issue with shared SKB between HCI raw socket and driverMarcel Holtmann
Any HCI raw socket gets a copy of each SKB that is either received or send via the Bluetooth subsystem. The raw socket uses SKB clones to send out data, but the problem is that it needs to add an extra packet type byte in front of it. And some drivers need to also add an extra header before submitting the packet. So far this all worked magically fine since all of the drivers and the raw sockets are adding the same byte at the same location. But that is by pure coincidence. Since the data of cloned SKBs is shared, this means that the raw socket and driver kept writing into the shared data area. To fix this the only safe way is if the HCI raw socket creates a copy of the SKB before sending it out. To not always copy all SKBs around, the copy is only created once and only after any of the HCI filter checks succeeded. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Simplify HCI socket bind handlingMarcel Holtmann
The HCI socket bind handling checks a few too many times the channel we are binding. So centralize this and make the function easier to read. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Add HCI CMSG details only to raw socketsMarcel Holtmann
The HCI CMSG specific data is for raw sockets only. So only add them to actual raw sockets. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Lock socket when reading HCI socket optionsMarcel Holtmann
When reading the HCI raw socket option, the socket was never locked. So lock the socket and in addition return EINVAL on non raw sockets. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Limit HCI raw socket options to actual raw socketsMarcel Holtmann
Currently the socket options of HCI sockets can be set on raw and control sockets, but on control sockets they make no sense. So just return EINVAL in that case. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-20Bluetooth: Split sending for HCI raw and control socketsMarcel Holtmann
The sending functions for HCI raw and control sockets have nothing in common except that they iterate over the socket list. Split them into two so they can do their job more efficient. In addition the code becomes more readable. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-13Bluetooth: Add address type to mgmt blacklist messagesJohan Hedberg
This patch updates the implmentation for mgmt_block_device and mgmt_unblock_device and their corresponding events to match the latest API specification. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-01-10Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-next