X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Flinux%2Fandroid%2Fbinder.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Flinux%2Fandroid%2Fbinder.h;h=962b003c3de9e17052ecdd85afb1868cffc43e08;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/linux/android/binder.h b/i686-linux-gnu-4.7/usr/include/linux/android/binder.h new file mode 100644 index 0000000..962b003 --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/linux/android/binder.h @@ -0,0 +1,467 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (C) 2008 Google, Inc. + * + * Based on, but no longer compatible with, the original + * OpenBinder.org binder driver interface, which is: + * + * Copyright (c) 2005 Palmsource, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _LINUX_BINDER_H +#define _LINUX_BINDER_H + +#include +#include + +#define B_PACK_CHARS(c1, c2, c3, c4) \ + ((((c1)<<24)) | (((c2)<<16)) | (((c3)<<8)) | (c4)) +#define B_TYPE_LARGE 0x85 + +enum { + BINDER_TYPE_BINDER = B_PACK_CHARS('s', 'b', '*', B_TYPE_LARGE), + BINDER_TYPE_WEAK_BINDER = B_PACK_CHARS('w', 'b', '*', B_TYPE_LARGE), + BINDER_TYPE_HANDLE = B_PACK_CHARS('s', 'h', '*', B_TYPE_LARGE), + BINDER_TYPE_WEAK_HANDLE = B_PACK_CHARS('w', 'h', '*', B_TYPE_LARGE), + BINDER_TYPE_FD = B_PACK_CHARS('f', 'd', '*', B_TYPE_LARGE), + BINDER_TYPE_FDA = B_PACK_CHARS('f', 'd', 'a', B_TYPE_LARGE), + BINDER_TYPE_PTR = B_PACK_CHARS('p', 't', '*', B_TYPE_LARGE), +}; + +enum { + FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff, + FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100, +}; + +#ifdef BINDER_IPC_32BIT +typedef __u32 binder_size_t; +typedef __u32 binder_uintptr_t; +#else +typedef __u64 binder_size_t; +typedef __u64 binder_uintptr_t; +#endif + +/** + * struct binder_object_header - header shared by all binder metadata objects. + * @type: type of the object + */ +struct binder_object_header { + __u32 type; +}; + +/* + * This is the flattened representation of a Binder object for transfer + * between processes. The 'offsets' supplied as part of a binder transaction + * contains offsets into the data where these structures occur. The Binder + * driver takes care of re-writing the structure type and data as it moves + * between processes. + */ +struct flat_binder_object { + struct binder_object_header hdr; + __u32 flags; + + /* 8 bytes of data. */ + union { + binder_uintptr_t binder; /* local object */ + __u32 handle; /* remote object */ + }; + + /* extra data associated with local object */ + binder_uintptr_t cookie; +}; + +/** + * struct binder_fd_object - describes a filedescriptor to be fixed up. + * @hdr: common header structure + * @pad_flags: padding to remain compatible with old userspace code + * @pad_binder: padding to remain compatible with old userspace code + * @fd: file descriptor + * @cookie: opaque data, used by user-space + */ +struct binder_fd_object { + struct binder_object_header hdr; + __u32 pad_flags; + union { + binder_uintptr_t pad_binder; + __u32 fd; + }; + + binder_uintptr_t cookie; +}; + +/* struct binder_buffer_object - object describing a userspace buffer + * @hdr: common header structure + * @flags: one or more BINDER_BUFFER_* flags + * @buffer: address of the buffer + * @length: length of the buffer + * @parent: index in offset array pointing to parent buffer + * @parent_offset: offset in @parent pointing to this buffer + * + * A binder_buffer object represents an object that the + * binder kernel driver can copy verbatim to the target + * address space. A buffer itself may be pointed to from + * within another buffer, meaning that the pointer inside + * that other buffer needs to be fixed up as well. This + * can be done by setting the BINDER_BUFFER_FLAG_HAS_PARENT + * flag in @flags, by setting @parent buffer to the index + * in the offset array pointing to the parent binder_buffer_object, + * and by setting @parent_offset to the offset in the parent buffer + * at which the pointer to this buffer is located. + */ +struct binder_buffer_object { + struct binder_object_header hdr; + __u32 flags; + binder_uintptr_t buffer; + binder_size_t length; + binder_size_t parent; + binder_size_t parent_offset; +}; + +enum { + BINDER_BUFFER_FLAG_HAS_PARENT = 0x01, +}; + +/* struct binder_fd_array_object - object describing an array of fds in a buffer + * @hdr: common header structure + * @pad: padding to ensure correct alignment + * @num_fds: number of file descriptors in the buffer + * @parent: index in offset array to buffer holding the fd array + * @parent_offset: start offset of fd array in the buffer + * + * A binder_fd_array object represents an array of file + * descriptors embedded in a binder_buffer_object. It is + * different from a regular binder_buffer_object because it + * describes a list of file descriptors to fix up, not an opaque + * blob of memory, and hence the kernel needs to treat it differently. + * + * An example of how this would be used is with Android's + * native_handle_t object, which is a struct with a list of integers + * and a list of file descriptors. The native_handle_t struct itself + * will be represented by a struct binder_buffer_objct, whereas the + * embedded list of file descriptors is represented by a + * struct binder_fd_array_object with that binder_buffer_object as + * a parent. + */ +struct binder_fd_array_object { + struct binder_object_header hdr; + __u32 pad; + binder_size_t num_fds; + binder_size_t parent; + binder_size_t parent_offset; +}; + +/* + * On 64-bit platforms where user code may run in 32-bits the driver must + * translate the buffer (and local binder) addresses appropriately. + */ + +struct binder_write_read { + binder_size_t write_size; /* bytes to write */ + binder_size_t write_consumed; /* bytes consumed by driver */ + binder_uintptr_t write_buffer; + binder_size_t read_size; /* bytes to read */ + binder_size_t read_consumed; /* bytes consumed by driver */ + binder_uintptr_t read_buffer; +}; + +/* Use with BINDER_VERSION, driver fills in fields. */ +struct binder_version { + /* driver protocol version -- increment with incompatible change */ + __s32 protocol_version; +}; + +/* This is the current protocol version. */ +#ifdef BINDER_IPC_32BIT +#define BINDER_CURRENT_PROTOCOL_VERSION 7 +#else +#define BINDER_CURRENT_PROTOCOL_VERSION 8 +#endif + +/* + * Use with BINDER_GET_NODE_DEBUG_INFO, driver reads ptr, writes to all fields. + * Set ptr to NULL for the first call to get the info for the first node, and + * then repeat the call passing the previously returned value to get the next + * nodes. ptr will be 0 when there are no more nodes. + */ +struct binder_node_debug_info { + binder_uintptr_t ptr; + binder_uintptr_t cookie; + __u32 has_strong_ref; + __u32 has_weak_ref; +}; + +#define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read) +#define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64) +#define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32) +#define BINDER_SET_IDLE_PRIORITY _IOW('b', 6, __s32) +#define BINDER_SET_CONTEXT_MGR _IOW('b', 7, __s32) +#define BINDER_THREAD_EXIT _IOW('b', 8, __s32) +#define BINDER_VERSION _IOWR('b', 9, struct binder_version) +#define BINDER_GET_NODE_DEBUG_INFO _IOWR('b', 11, struct binder_node_debug_info) + +/* + * NOTE: Two special error codes you should check for when calling + * in to the driver are: + * + * EINTR -- The operation has been interupted. This should be + * handled by retrying the ioctl() until a different error code + * is returned. + * + * ECONNREFUSED -- The driver is no longer accepting operations + * from your process. That is, the process is being destroyed. + * You should handle this by exiting from your process. Note + * that once this error code is returned, all further calls to + * the driver from any thread will return this same code. + */ + +enum transaction_flags { + TF_ONE_WAY = 0x01, /* this is a one-way call: async, no return */ + TF_ROOT_OBJECT = 0x04, /* contents are the component's root object */ + TF_STATUS_CODE = 0x08, /* contents are a 32-bit status code */ + TF_ACCEPT_FDS = 0x10, /* allow replies with file descriptors */ +}; + +struct binder_transaction_data { + /* The first two are only used for bcTRANSACTION and brTRANSACTION, + * identifying the target and contents of the transaction. + */ + union { + /* target descriptor of command transaction */ + __u32 handle; + /* target descriptor of return transaction */ + binder_uintptr_t ptr; + } target; + binder_uintptr_t cookie; /* target object cookie */ + __u32 code; /* transaction command */ + + /* General information about the transaction. */ + __u32 flags; + pid_t sender_pid; + uid_t sender_euid; + binder_size_t data_size; /* number of bytes of data */ + binder_size_t offsets_size; /* number of bytes of offsets */ + + /* If this transaction is inline, the data immediately + * follows here; otherwise, it ends with a pointer to + * the data buffer. + */ + union { + struct { + /* transaction data */ + binder_uintptr_t buffer; + /* offsets from buffer to flat_binder_object structs */ + binder_uintptr_t offsets; + } ptr; + __u8 buf[8]; + } data; +}; + +struct binder_transaction_data_sg { + struct binder_transaction_data transaction_data; + binder_size_t buffers_size; +}; + +struct binder_ptr_cookie { + binder_uintptr_t ptr; + binder_uintptr_t cookie; +}; + +struct binder_handle_cookie { + __u32 handle; + binder_uintptr_t cookie; +} __attribute__((packed)); + +struct binder_pri_desc { + __s32 priority; + __u32 desc; +}; + +struct binder_pri_ptr_cookie { + __s32 priority; + binder_uintptr_t ptr; + binder_uintptr_t cookie; +}; + +enum binder_driver_return_protocol { + BR_ERROR = _IOR('r', 0, __s32), + /* + * int: error code + */ + + BR_OK = _IO('r', 1), + /* No parameters! */ + + BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data), + BR_REPLY = _IOR('r', 3, struct binder_transaction_data), + /* + * binder_transaction_data: the received command. + */ + + BR_ACQUIRE_RESULT = _IOR('r', 4, __s32), + /* + * not currently supported + * int: 0 if the last bcATTEMPT_ACQUIRE was not successful. + * Else the remote object has acquired a primary reference. + */ + + BR_DEAD_REPLY = _IO('r', 5), + /* + * The target of the last transaction (either a bcTRANSACTION or + * a bcATTEMPT_ACQUIRE) is no longer with us. No parameters. + */ + + BR_TRANSACTION_COMPLETE = _IO('r', 6), + /* + * No parameters... always refers to the last transaction requested + * (including replies). Note that this will be sent even for + * asynchronous transactions. + */ + + BR_INCREFS = _IOR('r', 7, struct binder_ptr_cookie), + BR_ACQUIRE = _IOR('r', 8, struct binder_ptr_cookie), + BR_RELEASE = _IOR('r', 9, struct binder_ptr_cookie), + BR_DECREFS = _IOR('r', 10, struct binder_ptr_cookie), + /* + * void *: ptr to binder + * void *: cookie for binder + */ + + BR_ATTEMPT_ACQUIRE = _IOR('r', 11, struct binder_pri_ptr_cookie), + /* + * not currently supported + * int: priority + * void *: ptr to binder + * void *: cookie for binder + */ + + BR_NOOP = _IO('r', 12), + /* + * No parameters. Do nothing and examine the next command. It exists + * primarily so that we can replace it with a BR_SPAWN_LOOPER command. + */ + + BR_SPAWN_LOOPER = _IO('r', 13), + /* + * No parameters. The driver has determined that a process has no + * threads waiting to service incoming transactions. When a process + * receives this command, it must spawn a new service thread and + * register it via bcENTER_LOOPER. + */ + + BR_FINISHED = _IO('r', 14), + /* + * not currently supported + * stop threadpool thread + */ + + BR_DEAD_BINDER = _IOR('r', 15, binder_uintptr_t), + /* + * void *: cookie + */ + BR_CLEAR_DEATH_NOTIFICATION_DONE = _IOR('r', 16, binder_uintptr_t), + /* + * void *: cookie + */ + + BR_FAILED_REPLY = _IO('r', 17), + /* + * The the last transaction (either a bcTRANSACTION or + * a bcATTEMPT_ACQUIRE) failed (e.g. out of memory). No parameters. + */ +}; + +enum binder_driver_command_protocol { + BC_TRANSACTION = _IOW('c', 0, struct binder_transaction_data), + BC_REPLY = _IOW('c', 1, struct binder_transaction_data), + /* + * binder_transaction_data: the sent command. + */ + + BC_ACQUIRE_RESULT = _IOW('c', 2, __s32), + /* + * not currently supported + * int: 0 if the last BR_ATTEMPT_ACQUIRE was not successful. + * Else you have acquired a primary reference on the object. + */ + + BC_FREE_BUFFER = _IOW('c', 3, binder_uintptr_t), + /* + * void *: ptr to transaction data received on a read + */ + + BC_INCREFS = _IOW('c', 4, __u32), + BC_ACQUIRE = _IOW('c', 5, __u32), + BC_RELEASE = _IOW('c', 6, __u32), + BC_DECREFS = _IOW('c', 7, __u32), + /* + * int: descriptor + */ + + BC_INCREFS_DONE = _IOW('c', 8, struct binder_ptr_cookie), + BC_ACQUIRE_DONE = _IOW('c', 9, struct binder_ptr_cookie), + /* + * void *: ptr to binder + * void *: cookie for binder + */ + + BC_ATTEMPT_ACQUIRE = _IOW('c', 10, struct binder_pri_desc), + /* + * not currently supported + * int: priority + * int: descriptor + */ + + BC_REGISTER_LOOPER = _IO('c', 11), + /* + * No parameters. + * Register a spawned looper thread with the device. + */ + + BC_ENTER_LOOPER = _IO('c', 12), + BC_EXIT_LOOPER = _IO('c', 13), + /* + * No parameters. + * These two commands are sent as an application-level thread + * enters and exits the binder loop, respectively. They are + * used so the binder can have an accurate count of the number + * of looping threads it has available. + */ + + BC_REQUEST_DEATH_NOTIFICATION = _IOW('c', 14, + struct binder_handle_cookie), + /* + * int: handle + * void *: cookie + */ + + BC_CLEAR_DEATH_NOTIFICATION = _IOW('c', 15, + struct binder_handle_cookie), + /* + * int: handle + * void *: cookie + */ + + BC_DEAD_BINDER_DONE = _IOW('c', 16, binder_uintptr_t), + /* + * void *: cookie + */ + + BC_TRANSACTION_SG = _IOW('c', 17, struct binder_transaction_data_sg), + BC_REPLY_SG = _IOW('c', 18, struct binder_transaction_data_sg), + /* + * binder_transaction_data_sg: the sent command. + */ +}; + +#endif /* _LINUX_BINDER_H */ +