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Commit | Line | Data |
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74db920c | 1 | /* |
af8b38b0 | 2 | * 9p |
74db920c GS |
3 | * |
4 | * Copyright IBM, Corp. 2010 | |
5 | * | |
6 | * Authors: | |
7 | * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
10 | * the COPYING file in the top-level directory. | |
11 | * | |
12 | */ | |
121d0712 MA |
13 | |
14 | #ifndef FILE_OP_9P_H | |
15 | #define FILE_OP_9P_H | |
16 | ||
74db920c | 17 | #include <dirent.h> |
74db920c | 18 | #include <utime.h> |
758e8e38 | 19 | #include <sys/vfs.h> |
b8bbdb88 | 20 | #include "qemu-fsdev-throttle.h" |
0174fe73 | 21 | |
758e8e38 VJ |
22 | #define SM_LOCAL_MODE_BITS 0600 |
23 | #define SM_LOCAL_DIR_MODE_BITS 0700 | |
24 | ||
758e8e38 VJ |
25 | typedef struct FsCred |
26 | { | |
27 | uid_t fc_uid; | |
28 | gid_t fc_gid; | |
29 | mode_t fc_mode; | |
30 | dev_t fc_rdev; | |
31 | } FsCred; | |
74db920c | 32 | |
e06a765e HPB |
33 | struct FsContext; |
34 | struct V9fsPath; | |
35 | ||
36 | typedef struct extended_ops { | |
37 | int (*get_st_gen)(struct FsContext *, struct V9fsPath *, | |
38 | mode_t, uint64_t *); | |
39 | } extended_ops; | |
fc22118d | 40 | |
d3ab98e6 | 41 | /* export flags */ |
c98f1d4a AK |
42 | #define V9FS_IMMEDIATE_WRITEOUT 0x00000001 |
43 | #define V9FS_PATHNAME_FSCONTEXT 0x00000002 | |
b97400ca AK |
44 | /* |
45 | * uid/gid set on fileserver files | |
46 | */ | |
47 | #define V9FS_SM_PASSTHROUGH 0x00000004 | |
48 | /* | |
49 | * uid/gid part of xattr | |
50 | */ | |
51 | #define V9FS_SM_MAPPED 0x00000008 | |
52 | /* | |
53 | * Server will try to set uid/gid. | |
54 | * On failure ignore the error. | |
55 | */ | |
56 | #define V9FS_SM_NONE 0x00000010 | |
2c30dd74 AK |
57 | /* |
58 | * uid/gid part of .virtfs_meatadata namespace | |
59 | */ | |
60 | #define V9FS_SM_MAPPED_FILE 0x00000020 | |
61 | #define V9FS_RDONLY 0x00000040 | |
62 | #define V9FS_PROXY_SOCK_FD 0x00000080 | |
63 | #define V9FS_PROXY_SOCK_NAME 0x00000100 | |
b97400ca | 64 | |
2c30dd74 | 65 | #define V9FS_SEC_MASK 0x0000003C |
d3ab98e6 | 66 | |
2c74c2cb | 67 | |
99519f0a | 68 | typedef struct FileOperations FileOperations; |
01847522 GK |
69 | typedef struct XattrOperations XattrOperations; |
70 | ||
99519f0a AK |
71 | /* |
72 | * Structure to store the various fsdev's passed through command line. | |
73 | */ | |
74 | typedef struct FsDriverEntry { | |
75 | char *fsdev_id; | |
76 | char *path; | |
77 | int export_flags; | |
78 | FileOperations *ops; | |
b8bbdb88 | 79 | FsThrottle fst; |
b96feb2c TS |
80 | mode_t fmode; |
81 | mode_t dmode; | |
99519f0a | 82 | } FsDriverEntry; |
2c74c2cb | 83 | |
74db920c GS |
84 | typedef struct FsContext |
85 | { | |
74db920c | 86 | uid_t uid; |
b97400ca | 87 | char *fs_root; |
d3ab98e6 | 88 | int export_flags; |
01847522 | 89 | XattrOperations **xops; |
e06a765e | 90 | struct extended_ops exops; |
b8bbdb88 | 91 | FsThrottle *fst; |
532decb7 AK |
92 | /* fs driver specific data */ |
93 | void *private; | |
b96feb2c TS |
94 | mode_t fmode; |
95 | mode_t dmode; | |
74db920c GS |
96 | } FsContext; |
97 | ||
2289be19 | 98 | typedef struct V9fsPath { |
2f008a8c | 99 | uint16_t size; |
2289be19 AK |
100 | char *data; |
101 | } V9fsPath; | |
102 | ||
cc720ddb AK |
103 | typedef union V9fsFidOpenState V9fsFidOpenState; |
104 | ||
64b85a8f | 105 | void cred_init(FsCred *); |
758e8e38 | 106 | |
99519f0a | 107 | struct FileOperations |
74db920c | 108 | { |
99519f0a | 109 | int (*parse_opts)(QemuOpts *, struct FsDriverEntry *); |
0174fe73 | 110 | int (*init)(struct FsContext *); |
702dbcc2 | 111 | void (*cleanup)(struct FsContext *); |
2289be19 AK |
112 | int (*lstat)(FsContext *, V9fsPath *, struct stat *); |
113 | ssize_t (*readlink)(FsContext *, V9fsPath *, char *, size_t); | |
114 | int (*chmod)(FsContext *, V9fsPath *, FsCred *); | |
115 | int (*chown)(FsContext *, V9fsPath *, FsCred *); | |
116 | int (*mknod)(FsContext *, V9fsPath *, const char *, FsCred *); | |
117 | int (*utimensat)(FsContext *, V9fsPath *, const struct timespec *); | |
5bae1900 | 118 | int (*remove)(FsContext *, const char *); |
2289be19 AK |
119 | int (*symlink)(FsContext *, const char *, V9fsPath *, |
120 | const char *, FsCred *); | |
121 | int (*link)(FsContext *, V9fsPath *, V9fsPath *, const char *); | |
131dcb25 | 122 | int (*setuid)(FsContext *, uid_t); |
cc720ddb AK |
123 | int (*close)(FsContext *, V9fsFidOpenState *); |
124 | int (*closedir)(FsContext *, V9fsFidOpenState *); | |
125 | int (*opendir)(FsContext *, V9fsPath *, V9fsFidOpenState *); | |
126 | int (*open)(FsContext *, V9fsPath *, int, V9fsFidOpenState *); | |
127 | int (*open2)(FsContext *, V9fsPath *, const char *, | |
128 | int, FsCred *, V9fsFidOpenState *); | |
129 | void (*rewinddir)(FsContext *, V9fsFidOpenState *); | |
130 | off_t (*telldir)(FsContext *, V9fsFidOpenState *); | |
635324e8 | 131 | struct dirent * (*readdir)(FsContext *, V9fsFidOpenState *); |
cc720ddb AK |
132 | void (*seekdir)(FsContext *, V9fsFidOpenState *, off_t); |
133 | ssize_t (*preadv)(FsContext *, V9fsFidOpenState *, | |
134 | const struct iovec *, int, off_t); | |
135 | ssize_t (*pwritev)(FsContext *, V9fsFidOpenState *, | |
136 | const struct iovec *, int, off_t); | |
2289be19 | 137 | int (*mkdir)(FsContext *, V9fsPath *, const char *, FsCred *); |
8b888272 | 138 | int (*fstat)(FsContext *, int, V9fsFidOpenState *, struct stat *); |
8cf89e00 | 139 | int (*rename)(FsContext *, const char *, const char *); |
2289be19 | 140 | int (*truncate)(FsContext *, V9fsPath *, off_t); |
8b888272 | 141 | int (*fsync)(FsContext *, int, V9fsFidOpenState *, int); |
2289be19 AK |
142 | int (*statfs)(FsContext *s, V9fsPath *path, struct statfs *stbuf); |
143 | ssize_t (*lgetxattr)(FsContext *, V9fsPath *, | |
fa32ef88 | 144 | const char *, void *, size_t); |
2289be19 AK |
145 | ssize_t (*llistxattr)(FsContext *, V9fsPath *, void *, size_t); |
146 | int (*lsetxattr)(FsContext *, V9fsPath *, | |
10b468bd | 147 | const char *, void *, size_t, int); |
2289be19 AK |
148 | int (*lremovexattr)(FsContext *, V9fsPath *, const char *); |
149 | int (*name_to_path)(FsContext *, V9fsPath *, const char *, V9fsPath *); | |
150 | int (*renameat)(FsContext *ctx, V9fsPath *olddir, const char *old_name, | |
151 | V9fsPath *newdir, const char *new_name); | |
152 | int (*unlinkat)(FsContext *ctx, V9fsPath *dir, const char *name, int flags); | |
74db920c | 153 | void *opaque; |
99519f0a | 154 | }; |
fc22118d | 155 | |
74db920c | 156 | #endif |