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* binder: Add 'hwbinder' to the default devicesRob Herring2017-03-171-1/+1
| | | | | | | | | | | | | | | | | | As AOSP master is now starting to require a hwbinder device, add it to the the default Kconfig. Having the hwbinder device when not needed shouldn't hurt anything either. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-021-1/+1
| | | | | | | | | | | | | | | | | | | | <linux/sched/signal.h> We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/signal.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | <linux/sched/mm.h> We are going to split <linux/sched/mm.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/mm.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. The APIs that are going to be moved first are: mm_alloc() __mmdrop() mmdrop() mmdrop_async_fn() mmdrop_async() mmget_not_zero() mmput() mmput_async() get_task_mm() mm_access() mm_release() Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmfDave Jiang2017-02-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | ->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to take a vma and vmf parameter when the vma already resides in vmf. Remove the vma parameter to simplify things. [arnd@arndb.de: fix ARM build] Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: drop unused argument of zap_page_range()Kirill A. Shutemov2017-02-221-1/+1
| | | | | | | | | | | | | | There's no users of zap_page_range() who wants non-NULL 'details'. Let's drop it. Link: http://lkml.kernel.org/r/20170118122429.43661-3-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* binder: Add support for file-descriptor arraysMartijn Coenen2017-02-101-0/+137
| | | | | | | | | | | | | | | | | | This patch introduces a new binder_fd_array object, that allows us to support one or more file descriptors embedded in a buffer that is scatter-gathered. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Add support for scatter-gatherMartijn Coenen2017-02-101-13/+231
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously all data passed over binder needed to be serialized, with the exception of Binder objects and file descriptors. This patchs adds support for scatter-gathering raw memory buffers into a binder transaction, avoiding the need to first serialize them into a Parcel. To remain backwards compatibile with existing binder clients, it introduces two new command ioctls for this purpose - BC_TRANSACTION_SG and BC_REPLY_SG. These commands may only be used with the new binder_transaction_data_sg structure, which adds a field for the total size of the buffers we are scatter-gathering. Because memory buffers may contain pointers to other buffers, we allow callers to specify a parent buffer and an offset into it, to indicate this is a location pointing to the buffer that we are fixing up. The kernel will then take care of fixing up the pointer to that buffer as well. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> [jstultz: Fold in small fix from Amit Pundir <amit.pundir@linaro.org>] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Add extra size to allocatorMartijn Coenen2017-02-101-13/+28
| | | | | | | | | | | | | | | | | | | | | The binder_buffer allocator currently only allocates space for the data and offsets buffers of a Parcel. This change allows for requesting an additional chunk of data in the buffer, which can for example be used to hold additional meta-data about the transaction (eg a security context). Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Refactor binder_transact()Martijn Coenen2017-02-101-137/+172
| | | | | | | | | | | | | | | | | | Moved handling of fixup for binder objects, handles and file descriptors into separate functions. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Support multiple /dev instancesMartijn Coenen2017-02-102-11/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new module parameter 'devices', that can be used to specify the names of the binder device nodes we want to populate in /dev. Each device node has its own context manager, and is therefore logically separated from all the other device nodes. The config option CONFIG_ANDROID_BINDER_DEVICES can be used to set the default value of the parameter. This approach was favored over using IPC namespaces, mostly because we require a single process to be a part of multiple binder contexts, which seemed harder to achieve with namespaces. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> [jstultz: minor checkpatch warning fix] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Deal with contexts in debugfsMartijn Coenen2017-02-101-13/+23
| | | | | | | | | | | | | | | | Properly print the context in debugfs entries. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Support multiple context managersMartijn Coenen2017-02-101-21/+38
| | | | | | | | | | | | | | | | | | | Move the context manager state into a separate struct context, and allow for each process to have its own context associated with it. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> [jstultz: Minor checkpatch fix] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Split flat_binder_objectMartijn Coenen2017-02-101-49/+109
| | | | | | | | | | | | | | | | | | | | | | | | flat_binder_object is used for both handling binder objects and file descriptors, even though the two are mostly independent. Since we'll have more fixup objects in binder in the future, instead of extending flat_binder_object again, split out file descriptors to their own object while retaining backwards compatibility to existing user-space clients. All binder objects just share a header. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ANDROID: binder: Clear binder and cookie when setting handle in flat binder ↵Arve Hjønnevåg2016-10-241-0/+5
| | | | | | | | | | | struct Prevents leaking pointers between processes Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Martijn Coenen <maco@android.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ANDROID: binder: Add strong ref checksArve Hjønnevåg2016-10-241-9/+21
| | | | | | | | | | Prevent using a binder_ref with only weak references where a strong reference is required. Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Martijn Coenen <maco@android.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* android: binder: Remove deprecated create_singlethread_workqueueBhaktipriya Shridhar2016-08-151-6/+1
| | | | | | | | | | | | | | | | | | | | | The workqueue is being used to run deferred work for the android binder. The "binder_deferred_workqueue" queues only a single work item and hence does not require ordering. Also, this workqueue is not being used on a memory recliam path. Hence, the singlethreaded workqueue has been replaced with the use of system_wq. System workqueues have been able to handle high level of concurrency for a long time now and hence it's not required to have a singlethreaded workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue created with create_singlethread_workqueue(), system_wq allows multiple work items to overlap executions even on the same CPU; however, a per-cpu workqueue doesn't have any CPU locality or global ordering guarantee unless the target CPU is explicitly specified and thus the increase of local concurrency shouldn't make any difference. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 4.5-rc6 into staging-nextGreg Kroah-Hartman2016-03-011-1/+1
|\ | | | | | | | | | | We want the staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * drivers: android: correct the size of struct binder_uintptr_t for ↵Lisa Du2016-02-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BC_DEAD_BINDER_DONE There's one point was missed in the patch commit da49889deb34 ("staging: binder: Support concurrent 32 bit and 64 bit processes."). When configure BINDER_IPC_32BIT, the size of binder_uintptr_t was 32bits, but size of void * is 64bit on 64bit system. Correct it here. Signed-off-by: Lisa Du <cldu@marvell.com> Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Fixes: da49889deb34 ("staging: binder: Support concurrent 32 bit and 64 bit processes.") Cc: <stable@vger.kernel.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge char-misc-next into staging-nextGreg Kroah-Hartman2016-02-221-4/+22
|\ \ | | | | | | | | | | | | | | | | | | | | | This resolves the merge issues and confusions people were having with the goldfish drivers due to changes for them showing up in two different trees. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | android: drivers: Avoid debugfs race in binderRiley Andrews2016-02-111-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a /d/binder/proc/[pid] entry is kept open after linux has torn down the associated process, binder_proc_show can deference an invalid binder_proc that has been stashed in the debugfs inode. Validate that the binder_proc ptr passed into binder_proc_show has not been freed by looking for it within the global process list whilst the global lock is held. If the ptr is not valid, print nothing. Cc: Colin Cross <ccross@android.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Dmitry Shmidt <dimitrysh@google.com> [jstultz: Minor commit message tweaks] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | android: binder: More offset validationArve Hjønnevåg2016-02-111-2/+9
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure offsets don't point to overlapping flat_binder_object structs. Cc: Colin Cross <ccross@android.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Dmitry Shmidt <dimitrysh@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* / android: binder: Sanity check at binder ioctlChen Feng2016-02-071-0/+5
|/ | | | | | | | | | | | | | | | | | Sanity check at binder ioctl function, Only allow the shared mm_struct to use the same binder-object to do binder operate. And add proc->vma_vm_mm = current->mm at the open function. The libbinder do ioctl before mmap called. V2: Fix compile error for error commit V3: Change the condition to proc->vma_vm_mm Signed-off-by: Chen Feng <puck.chen@hisilicon.com> Signed-off-by: Wei Dong <weidong2@hisilicon.com> Signed-off-by: Junmin Zhao <zhaojunmin@huawei.com> Reviewed-by: Zhuangluan Su <suzhuangluan@hisilicon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mm: mark most vm_operations_struct constKirill A. Shutemov2015-09-101-1/+1
| | | | | | | | | | | | | | | | With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct structs should be constant. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Minchan Kim <minchan@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* android: binder: fix binder mmap failuresAndrey Ryabinin2015-03-011-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | binder_update_page_range() initializes only addr and size fields in 'struct vm_struct tmp_area;' and passes it to map_vm_area(). Before 71394fe50146 ("mm: vmalloc: add flag preventing guard hole allocation") this was because map_vm_area() didn't use any other fields in vm_struct except addr and size. Now get_vm_area_size() (used in map_vm_area()) reads vm_struct's flags to determine whether vm area has guard hole or not. binder_update_page_range() don't initialize flags field, so this causes following binder mmap failures: -----------[ cut here ]------------ WARNING: CPU: 0 PID: 1971 at mm/vmalloc.c:130 vmap_page_range_noflush+0x119/0x144() CPU: 0 PID: 1971 Comm: healthd Not tainted 4.0.0-rc1-00399-g7da3fdc-dirty #157 Hardware name: ARM-Versatile Express [<c001246d>] (unwind_backtrace) from [<c000f7f9>] (show_stack+0x11/0x14) [<c000f7f9>] (show_stack) from [<c049a221>] (dump_stack+0x59/0x7c) [<c049a221>] (dump_stack) from [<c001cf21>] (warn_slowpath_common+0x55/0x84) [<c001cf21>] (warn_slowpath_common) from [<c001cfe3>] (warn_slowpath_null+0x17/0x1c) [<c001cfe3>] (warn_slowpath_null) from [<c00c66c5>] (vmap_page_range_noflush+0x119/0x144) [<c00c66c5>] (vmap_page_range_noflush) from [<c00c716b>] (map_vm_area+0x27/0x48) [<c00c716b>] (map_vm_area) from [<c038ddaf>] (binder_update_page_range+0x12f/0x27c) [<c038ddaf>] (binder_update_page_range) from [<c038e857>] (binder_mmap+0xbf/0x1ac) [<c038e857>] (binder_mmap) from [<c00c2dc7>] (mmap_region+0x2eb/0x4d4) [<c00c2dc7>] (mmap_region) from [<c00c3197>] (do_mmap_pgoff+0x1e7/0x250) [<c00c3197>] (do_mmap_pgoff) from [<c00b35b5>] (vm_mmap_pgoff+0x45/0x60) [<c00b35b5>] (vm_mmap_pgoff) from [<c00c1f39>] (SyS_mmap_pgoff+0x5d/0x80) [<c00c1f39>] (SyS_mmap_pgoff) from [<c000ce81>] (ret_fast_syscall+0x1/0x5c) ---[ end trace 48c2c4b9a1349e54 ]--- binder: 1982: binder_alloc_buf failed to map page at f0e00000 in kernel binder: binder_mmap: 1982 b6bde000-b6cdc000 alloc small buf failed -12 Use map_kernel_range_noflush() instead of map_vm_area() as this is better API for binder's purposes and it allows to get rid of 'vm_struct tmp_area' at all. Fixes: 71394fe50146 ("mm: vmalloc: add flag preventing guard hole allocation") Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Reported-by: Amit Pundir <amit.pundir@linaro.org> Tested-by: Amit Pundir <amit.pundir@linaro.org> Acked-by: David Rientjes <rientjes@google.com> Tested-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Add security hooks to binder and implement the hooks for SELinux.Stephen Smalley2015-01-251-0/+26
| | | | | | | | | | | | | | | | | | | | | | | Add security hooks to the binder and implement the hooks for SELinux. The security hooks enable security modules such as SELinux to implement controls over binder IPC. The security hooks include support for controlling what process can become the binder context manager (binder_set_context_mgr), controlling the ability of a process to invoke a binder transaction/IPC to another process (binder_transaction), controlling the ability of a process to transfer a binder reference to another process (binder_transfer_binder), and controlling the ability of a process to transfer an open file to another process (binder_transfer_file). These hooks have been included in the Android kernel trees since Android 4.3. (Updated to reflect upstream relocation and changes to the binder driver, changes to the LSM audit data structures, coding style cleanups, and to add inline documentation for the hooks). Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Nick Kralevich <nnk@google.com> Acked-by: Jeffrey Vander Stoep <jeffv@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* android: binder: remove binder.hGreg Kroah-Hartman2014-10-202-31/+5
| | | | | | | binder.h isn't needed to just include a uapi file and set a single define, so move it into binder.c to save a few lines of code. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: android: binder: move to the "real" part of the kernelGreg Kroah-Hartman2014-10-205-0/+4072
The Android binder code has been "stable" for many years now. No matter what comes in the future, we are going to have to support this API, so might as well move it to the "real" part of the kernel as there's no real work that needs to be done to the existing code. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 09:38:26 +0000