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PK !D�[�V��D< D< binder.hnu �[��� /* 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 <linux/types.h> #include <linux/ioctl.h> #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, /** * @FLAT_BINDER_FLAG_TXN_SECURITY_CTX: request security contexts * * Only when set, causes senders to include their security * context */ FLAT_BINDER_FLAG_TXN_SECURITY_CTX = 0x1000, }; #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; }; struct binder_node_info_for_ref { __u32 handle; __u32 strong_count; __u32 weak_count; __u32 reserved1; __u32 reserved2; __u32 reserved3; }; struct binder_freeze_info { __u32 pid; __u32 enable; __u32 timeout_ms; }; struct binder_frozen_status_info { __u32 pid; __u32 sync_recv; __u32 async_recv; }; #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) #define BINDER_GET_NODE_INFO_FOR_REF _IOWR('b', 12, struct binder_node_info_for_ref) #define BINDER_SET_CONTEXT_MGR_EXT _IOW('b', 13, struct flat_binder_object) #define BINDER_FREEZE _IOW('b', 14, struct binder_freeze_info) #define BINDER_GET_FROZEN_INFO _IOWR('b', 15, struct binder_frozen_status_info) #define BINDER_ENABLE_ONEWAY_SPAM_DETECTION _IOW('b', 16, __u32) /* * 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 */ TF_CLEAR_BUF = 0x20, /* clear buffer on txn complete */ }; 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_secctx { struct binder_transaction_data transaction_data; binder_uintptr_t secctx; }; 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_SEC_CTX = _IOR('r', 2, struct binder_transaction_data_secctx), /* * binder_transaction_data_secctx: the received command. */ 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 last transaction (either a bcTRANSACTION or * a bcATTEMPT_ACQUIRE) failed (e.g. out of memory). No parameters. */ BR_FROZEN_REPLY = _IO('r', 18), /* * The target of the last transaction (either a bcTRANSACTION or * a bcATTEMPT_ACQUIRE) is frozen. No parameters. */ BR_ONEWAY_SPAM_SUSPECT = _IO('r', 19), /* * Current process sent too many oneway calls to target, and the last * asynchronous transaction makes the allocated async buffer size exceed * detection threshold. 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 */ PK !D�[�#1� binderfs.hnu �[��� /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) 2018 Canonical Ltd. * */ #ifndef _LINUX_BINDERFS_H #define _LINUX_BINDERFS_H #include <linux/android/binder.h> #include <linux/types.h> #include <linux/ioctl.h> #define BINDERFS_MAX_NAME 255 /** * struct binderfs_device - retrieve information about a new binder device * @name: the name to use for the new binderfs binder device * @major: major number allocated for binderfs binder devices * @minor: minor number allocated for the new binderfs binder device * */ struct binderfs_device { char name[BINDERFS_MAX_NAME + 1]; __u32 major; __u32 minor; }; /** * Allocate a new binder device. */ #define BINDER_CTL_ADD _IOWR('b', 1, struct binderfs_device) #endif /* _LINUX_BINDERFS_H */ PK !D�[�V��D< D< binder.hnu �[��� PK !D�[�#1� |< binderfs.hnu �[��� PK � �?
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