Josh Gao | c7b7459 | 2018-07-25 15:55:25 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #pragma once |
| 18 | |
| 19 | #define MKID(a, b, c, d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24)) |
| 20 | |
| 21 | #define ID_LSTAT_V1 MKID('S', 'T', 'A', 'T') |
| 22 | #define ID_STAT_V2 MKID('S', 'T', 'A', '2') |
| 23 | #define ID_LSTAT_V2 MKID('L', 'S', 'T', '2') |
Josh Gao | 7b08307 | 2019-08-07 14:23:17 -0700 | [diff] [blame] | 24 | |
| 25 | #define ID_LIST_V1 MKID('L', 'I', 'S', 'T') |
| 26 | #define ID_LIST_V2 MKID('L', 'I', 'S', '2') |
| 27 | #define ID_DENT_V1 MKID('D', 'E', 'N', 'T') |
| 28 | #define ID_DENT_V2 MKID('D', 'N', 'T', '2') |
| 29 | |
Josh Gao | c7b7459 | 2018-07-25 15:55:25 -0700 | [diff] [blame] | 30 | #define ID_SEND MKID('S', 'E', 'N', 'D') |
| 31 | #define ID_RECV MKID('R', 'E', 'C', 'V') |
Josh Gao | c7b7459 | 2018-07-25 15:55:25 -0700 | [diff] [blame] | 32 | #define ID_DONE MKID('D', 'O', 'N', 'E') |
| 33 | #define ID_DATA MKID('D', 'A', 'T', 'A') |
| 34 | #define ID_OKAY MKID('O', 'K', 'A', 'Y') |
| 35 | #define ID_FAIL MKID('F', 'A', 'I', 'L') |
| 36 | #define ID_QUIT MKID('Q', 'U', 'I', 'T') |
| 37 | |
| 38 | struct SyncRequest { |
| 39 | uint32_t id; // ID_STAT, et cetera. |
| 40 | uint32_t path_length; // <= 1024 |
| 41 | // Followed by 'path_length' bytes of path (not NUL-terminated). |
| 42 | } __attribute__((packed)); |
| 43 | |
Josh Gao | e08589f | 2020-03-19 17:13:52 -0700 | [diff] [blame^] | 44 | struct __attribute__((packed)) sync_stat_v1 { |
| 45 | uint32_t id; |
| 46 | uint32_t mode; |
| 47 | uint32_t size; |
| 48 | uint32_t mtime; |
| 49 | }; |
| 50 | |
| 51 | struct __attribute__((packed)) sync_stat_v2 { |
| 52 | uint32_t id; |
| 53 | uint32_t error; |
| 54 | uint64_t dev; |
| 55 | uint64_t ino; |
| 56 | uint32_t mode; |
| 57 | uint32_t nlink; |
| 58 | uint32_t uid; |
| 59 | uint32_t gid; |
| 60 | uint64_t size; |
| 61 | int64_t atime; |
| 62 | int64_t mtime; |
| 63 | int64_t ctime; |
| 64 | }; |
| 65 | |
| 66 | struct __attribute__((packed)) sync_dent_v1 { |
| 67 | uint32_t id; |
| 68 | uint32_t mode; |
| 69 | uint32_t size; |
| 70 | uint32_t mtime; |
| 71 | uint32_t namelen; |
| 72 | }; // followed by `namelen` bytes of the name. |
| 73 | |
| 74 | struct __attribute__((packed)) sync_dent_v2 { |
| 75 | uint32_t id; |
| 76 | uint32_t error; |
| 77 | uint64_t dev; |
| 78 | uint64_t ino; |
| 79 | uint32_t mode; |
| 80 | uint32_t nlink; |
| 81 | uint32_t uid; |
| 82 | uint32_t gid; |
| 83 | uint64_t size; |
| 84 | int64_t atime; |
| 85 | int64_t mtime; |
| 86 | int64_t ctime; |
| 87 | uint32_t namelen; |
| 88 | }; // followed by `namelen` bytes of the name. |
| 89 | |
| 90 | struct __attribute__((packed)) sync_data { |
| 91 | uint32_t id; |
| 92 | uint32_t size; |
| 93 | }; // followed by `size` bytes of data. |
| 94 | |
| 95 | struct __attribute__((packed)) sync_status { |
| 96 | uint32_t id; |
| 97 | uint32_t msglen; |
| 98 | }; // followed by `msglen` bytes of error message, if id == ID_FAIL. |
| 99 | |
Josh Gao | c7b7459 | 2018-07-25 15:55:25 -0700 | [diff] [blame] | 100 | union syncmsg { |
Josh Gao | e08589f | 2020-03-19 17:13:52 -0700 | [diff] [blame^] | 101 | sync_stat_v1 stat_v1; |
| 102 | sync_stat_v2 stat_v2; |
| 103 | sync_dent_v1 dent_v1; |
| 104 | sync_dent_v2 dent_v2; |
| 105 | sync_data data; |
| 106 | sync_status status; |
Josh Gao | c7b7459 | 2018-07-25 15:55:25 -0700 | [diff] [blame] | 107 | }; |
| 108 | |
| 109 | #define SYNC_DATA_MAX (64 * 1024) |