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#ifndef _FILE_SYNC_SERVICE_H_
18#define _FILE_SYNC_SERVICE_H_
19
20#include <string>
21#include <vector>
22
23#define MKID(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24))
24
25#define ID_LSTAT_V1 MKID('S','T','A','T')
26#define ID_STAT_V2 MKID('S','T','A','2')
27#define ID_LSTAT_V2 MKID('L','S','T','2')
28#define ID_LIST MKID('L','I','S','T')
29#define ID_SEND MKID('S','E','N','D')
30#define ID_RECV MKID('R','E','C','V')
31#define ID_DENT MKID('D','E','N','T')
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
38struct 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
44union syncmsg {
45    struct __attribute__((packed)) {
46        uint32_t id;
47        uint32_t mode;
48        uint32_t size;
49        uint32_t time;
50    } stat_v1;
51    struct __attribute__((packed)) {
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    } stat_v2;
65    struct __attribute__((packed)) {
66        uint32_t id;
67        uint32_t mode;
68        uint32_t size;
69        uint32_t time;
70        uint32_t namelen;
71    } dent;
72    struct __attribute__((packed)) {
73        uint32_t id;
74        uint32_t size;
75    } data;
76    struct __attribute__((packed)) {
77        uint32_t id;
78        uint32_t msglen;
79    } status;
80};
81
82void file_sync_service(int fd, void* cookie);
83bool do_sync_ls(const char* path);
84bool do_sync_push(const std::vector<const char*>& srcs, const char* dst, bool sync);
85bool do_sync_pull(const std::vector<const char*>& srcs, const char* dst,
86                  bool copy_attrs, const char* name=nullptr);
87
88bool do_sync_sync(const std::string& lpath, const std::string& rpath, bool list_only);
89
90#define SYNC_DATA_MAX (64*1024)
91
92#endif
93