1 /* 2 * Copyright (C) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef OHOS_IPC_SYS_BINDER_H 17 #define OHOS_IPC_SYS_BINDER_H 18 19 #include <sys/types.h> 20 21 #ifndef _UAPI_LINUX_BINDER_H 22 #define _UAPI_LINUX_BINDER_H 23 24 #include <linux/types.h> 25 #include <linux/ioctl.h> 26 27 #ifndef B_PACK_CHARS 28 #define B_PACK_CHARS(c1, c2, c3, c4) ((((c1) << 24)) | (((c2) << 16)) | (((c3) << 8)) | (c4)) 29 #endif 30 31 #define B_TYPE_LARGE 0x85 32 enum { 33 BINDER_TYPE_BINDER = B_PACK_CHARS('s', 'b', '*', B_TYPE_LARGE), 34 BINDER_TYPE_WEAK_BINDER = B_PACK_CHARS('w', 'b', '*', B_TYPE_LARGE), 35 BINDER_TYPE_HANDLE = B_PACK_CHARS('s', 'h', '*', B_TYPE_LARGE), 36 BINDER_TYPE_WEAK_HANDLE = B_PACK_CHARS('w', 'h', '*', B_TYPE_LARGE), 37 BINDER_TYPE_FD = B_PACK_CHARS('f', 'd', '*', B_TYPE_LARGE), 38 BINDER_TYPE_FDA = B_PACK_CHARS('f', 'd', 'a', B_TYPE_LARGE), 39 BINDER_TYPE_PTR = B_PACK_CHARS('p', 't', '*', B_TYPE_LARGE), 40 }; 41 enum { 42 FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff, 43 FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100, 44 FLAT_BINDER_FLAG_TXN_SECURITY_CTX = 0x1000, 45 }; 46 typedef __u64 binder_size_t; 47 typedef __u64 binder_uintptr_t; 48 struct binder_object_header { 49 __u32 type; 50 }; 51 struct flat_binder_object { 52 struct binder_object_header hdr; 53 __u32 flags; 54 union { 55 binder_uintptr_t binder; 56 __u32 handle; 57 }; 58 binder_uintptr_t cookie; 59 }; 60 61 struct binder_fd_object { 62 struct binder_object_header hdr; 63 __u32 pad_flags; 64 union { 65 binder_uintptr_t pad_binder; 66 __u32 fd; 67 }; 68 binder_uintptr_t cookie; 69 }; 70 struct binder_buffer_object { 71 struct binder_object_header hdr; 72 __u32 flags; 73 binder_uintptr_t buffer; 74 binder_size_t length; 75 binder_size_t parent; 76 binder_size_t parent_offset; 77 }; 78 enum { 79 BINDER_BUFFER_FLAG_HAS_PARENT = 0x01, 80 }; 81 struct binder_fd_array_object { 82 struct binder_object_header hdr; 83 __u32 pad; 84 binder_size_t num_fds; 85 binder_size_t parent; 86 binder_size_t parent_offset; 87 }; 88 struct binder_write_read { 89 binder_size_t write_size; 90 binder_size_t write_consumed; 91 binder_uintptr_t write_buffer; 92 binder_size_t read_size; 93 binder_size_t read_consumed; 94 binder_uintptr_t read_buffer; 95 }; 96 struct binder_version { 97 __s32 protocol_version; 98 }; 99 #define BINDER_CURRENT_PROTOCOL_VERSION 8 100 101 struct binder_feature_set { 102 __u64 feature_set; 103 }; 104 #define ACCESS_TOKEN_FAETURE_MASK (1 << 0) 105 106 struct binder_node_debug_info { 107 binder_uintptr_t ptr; 108 binder_uintptr_t cookie; 109 __u32 has_strong_ref; 110 __u32 has_weak_ref; 111 }; 112 113 struct binder_node_info_for_ref { 114 __u32 handle; 115 __u32 strong_count; 116 __u32 weak_count; 117 __u32 reserved1; 118 __u32 reserved2; 119 __u32 reserved3; 120 }; 121 122 struct access_token { 123 __u64 sender_tokenid; 124 __u64 first_tokenid; 125 __u64 reserved[2]; 126 }; 127 128 #define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read) 129 #define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64) 130 #define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32) 131 #define BINDER_SET_IDLE_PRIORITY _IOW('b', 6, __s32) 132 #define BINDER_SET_CONTEXT_MGR _IOW('b', 7, __s32) 133 #define BINDER_THREAD_EXIT _IOW('b', 8, __s32) 134 #define BINDER_VERSION _IOWR('b', 9, struct binder_version) 135 #define BINDER_GET_NODE_DEBUG_INFO _IOWR('b', 11, struct binder_node_debug_info) 136 #define BINDER_GET_NODE_INFO_FOR_REF _IOWR('b', 12, struct binder_node_info_for_ref) 137 #define BINDER_SET_CONTEXT_MGR_EXT _IOW('b', 13, struct flat_binder_object) 138 #define BINDER_GET_NODE_REFCOUNT _IOWR('b', 17, struct binder_ptr_count) 139 #define BINDER_TRANSLATE_HANDLE _IOWR('b', 18, __u32) 140 #define BINDER_FEATURE_SET _IOWR('b', 30, struct binder_feature_set) 141 #define BINDER_GET_ACCESS_TOKEN _IOWR('b', 31, struct access_token) 142 143 enum transaction_flags { 144 TF_ONE_WAY = 0x01, 145 TF_ROOT_OBJECT = 0x04, 146 TF_STATUS_CODE = 0x08, 147 TF_ACCEPT_FDS = 0x10, 148 TF_HITRACE = 0x80, // add flag for hitrace 149 }; 150 struct binder_transaction_data { 151 union { 152 __u32 handle; 153 binder_uintptr_t ptr; 154 } target; 155 binder_uintptr_t cookie; 156 __u32 code; 157 __u32 flags; 158 pid_t sender_pid; 159 uid_t sender_euid; 160 binder_size_t data_size; 161 binder_size_t offsets_size; 162 union { 163 struct { 164 binder_uintptr_t buffer; 165 binder_uintptr_t offsets; 166 } ptr; 167 __u8 buf[8]; 168 } data; 169 }; 170 struct binder_ptr_cookie { 171 binder_uintptr_t ptr; 172 binder_uintptr_t cookie; 173 }; 174 struct binder_handle_cookie { 175 __u32 handle; 176 binder_uintptr_t cookie; 177 } __attribute__((__packed__)); 178 struct binder_pri_desc { 179 __s32 priority; 180 __u32 desc; 181 }; 182 struct binder_pri_ptr_cookie { 183 __s32 priority; 184 binder_uintptr_t ptr; 185 binder_uintptr_t cookie; 186 }; 187 enum binder_driver_return_protocol { 188 BR_ERROR = _IOR('r', 0, __s32), 189 BR_OK = _IO('r', 1), 190 BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data), 191 BR_REPLY = _IOR('r', 3, struct binder_transaction_data), 192 BR_ACQUIRE_RESULT = _IOR('r', 4, __s32), 193 BR_DEAD_REPLY = _IO('r', 5), 194 BR_TRANSACTION_COMPLETE = _IO('r', 6), 195 BR_INCREFS = _IOR('r', 7, struct binder_ptr_cookie), 196 BR_ACQUIRE = _IOR('r', 8, struct binder_ptr_cookie), 197 BR_RELEASE = _IOR('r', 9, struct binder_ptr_cookie), 198 BR_DECREFS = _IOR('r', 10, struct binder_ptr_cookie), 199 BR_ATTEMPT_ACQUIRE = _IOR('r', 11, struct binder_pri_ptr_cookie), 200 BR_NOOP = _IO('r', 12), 201 BR_SPAWN_LOOPER = _IO('r', 13), 202 BR_FINISHED = _IO('r', 14), 203 BR_DEAD_BINDER = _IOR('r', 15, binder_uintptr_t), 204 BR_CLEAR_DEATH_NOTIFICATION_DONE = _IOR('r', 16, binder_uintptr_t), 205 BR_FAILED_REPLY = _IO('r', 17), 206 BR_RELEASE_NODE = _IO('r', 18), 207 }; 208 enum binder_driver_command_protocol { 209 BC_TRANSACTION = _IOW('c', 0, struct binder_transaction_data), 210 BC_REPLY = _IOW('c', 1, struct binder_transaction_data), 211 BC_ACQUIRE_RESULT = _IOW('c', 2, __s32), 212 BC_FREE_BUFFER = _IOW('c', 3, binder_uintptr_t), 213 BC_INCREFS = _IOW('c', 4, __u32), 214 BC_ACQUIRE = _IOW('c', 5, __u32), 215 BC_RELEASE = _IOW('c', 6, __u32), 216 BC_DECREFS = _IOW('c', 7, __u32), 217 BC_INCREFS_DONE = _IOW('c', 8, struct binder_ptr_cookie), 218 BC_ACQUIRE_DONE = _IOW('c', 9, struct binder_ptr_cookie), 219 BC_ATTEMPT_ACQUIRE = _IOW('c', 10, struct binder_pri_desc), 220 BC_REGISTER_LOOPER = _IO('c', 11), 221 BC_ENTER_LOOPER = _IO('c', 12), 222 BC_EXIT_LOOPER = _IO('c', 13), 223 BC_REQUEST_DEATH_NOTIFICATION = _IOW('c', 14, struct binder_handle_cookie), 224 BC_CLEAR_DEATH_NOTIFICATION = _IOW('c', 15, struct binder_handle_cookie), 225 BC_DEAD_BINDER_DONE = _IOW('c', 16, binder_uintptr_t), 226 BC_SEND_RAWDATA = _IOW('c', 20, __u32), 227 }; 228 #endif /* * _UAPI_LINUX_BINDER_H * */ 229 230 static const int DBINDER_MAGICWORD = 0X4442494E; 231 static const int ENCRYPT_HEAD_LEN = 28; 232 static const int DEVICEID_LENGTH = 64; 233 static const int PID_LEN = 32; 234 static const int VERSION_NUM = 1; 235 236 enum { 237 BINDER_TYPE_REMOTE_BINDER = B_PACK_CHARS('r', 'b', '*', B_TYPE_LARGE), 238 BINDER_TYPE_REMOTE_HANDLE = B_PACK_CHARS('r', 'h', '*', B_TYPE_LARGE), 239 ZBINDER_TYPE_REMOTE_NODE = B_PACK_CHARS('r', 'n', '*', B_TYPE_LARGE), 240 ZBINDER_TYPE_NODE = B_PACK_CHARS('s', 'n', '*', B_TYPE_LARGE), 241 BINDER_TYPE_FDR = B_PACK_CHARS('f', 'd', 'r', B_TYPE_LARGE), 242 }; 243 244 struct binder_ptr_count { 245 binder_uintptr_t ptr; 246 uint32_t count; 247 }; 248 249 struct dbinder_transaction_data { 250 __u32 sizeOfSelf; 251 __u32 magic; 252 __u32 version; 253 int cmd; 254 __u32 code; 255 __u32 flags; 256 __u64 cookie; 257 __u64 seqNumber; 258 binder_size_t buffer_size; 259 binder_size_t offsets_size; 260 binder_uintptr_t offsets; 261 unsigned char buffer[0]; 262 }; 263 #endif // OHOS_IPC_SYS_BINDER_H 264