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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Jakub Jermar |
2 | * Copyright (c) 2008 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup fs |
29 | /** @addtogroup fs |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | #ifndef VFS_VFS_H_ |
33 | #ifndef VFS_VFS_H_ |
34 | #define VFS_VFS_H_ |
34 | #define VFS_VFS_H_ |
35 | 35 | ||
36 | #include <ipc/ipc.h> |
36 | #include <ipc/ipc.h> |
37 | #include <libadt/list.h> |
37 | #include <libadt/list.h> |
38 | #include <futex.h> |
38 | #include <futex.h> |
39 | #include <rwlock.h> |
39 | #include <rwlock.h> |
40 | #include <sys/types.h> |
40 | #include <sys/types.h> |
41 | #include <bool.h> |
41 | #include <bool.h> |
42 | 42 | ||
43 | #define dprintf(...) printf(__VA_ARGS__) |
43 | #define dprintf(...) printf(__VA_ARGS__) |
44 | 44 | ||
45 | #define VFS_FIRST IPC_FIRST_USER_METHOD |
45 | #define VFS_FIRST IPC_FIRST_USER_METHOD |
46 | 46 | ||
47 | #define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST) |
47 | #define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST) |
48 | 48 | ||
49 | /* Basic types. */ |
49 | /* Basic types. */ |
50 | typedef int16_t fs_handle_t; |
50 | typedef int16_t fs_handle_t; |
51 | typedef int16_t dev_handle_t; |
51 | typedef int16_t dev_handle_t; |
52 | typedef uint32_t fs_index_t; |
52 | typedef uint32_t fs_index_t; |
53 | 53 | ||
54 | typedef enum { |
54 | typedef enum { |
55 | VFS_READ = VFS_FIRST, |
55 | VFS_READ = VFS_FIRST, |
56 | VFS_WRITE, |
56 | VFS_WRITE, |
57 | VFS_TRUNCATE, |
57 | VFS_TRUNCATE, |
58 | VFS_MOUNT, |
58 | VFS_MOUNT, |
59 | VFS_UNMOUNT, |
59 | VFS_UNMOUNT, |
60 | VFS_LAST_CMN, /* keep this the last member of this enum */ |
60 | VFS_LAST_CMN, /* keep this the last member of this enum */ |
61 | } vfs_request_cmn_t; |
61 | } vfs_request_cmn_t; |
62 | 62 | ||
63 | typedef enum { |
63 | typedef enum { |
64 | VFS_LOOKUP = VFS_LAST_CMN, |
64 | VFS_LOOKUP = VFS_LAST_CMN, |
65 | VFS_DESTROY, |
65 | VFS_DESTROY, |
66 | VFS_LAST_CLNT, /* keep this the last member of this enum */ |
66 | VFS_LAST_CLNT, /* keep this the last member of this enum */ |
67 | } vfs_request_clnt_t; |
67 | } vfs_request_clnt_t; |
68 | 68 | ||
69 | typedef enum { |
69 | typedef enum { |
70 | VFS_REGISTER = VFS_LAST_CMN, |
70 | VFS_REGISTER = VFS_LAST_CMN, |
71 | VFS_OPEN, |
71 | VFS_OPEN, |
72 | VFS_CLOSE, |
72 | VFS_CLOSE, |
73 | VFS_SEEK, |
73 | VFS_SEEK, |
74 | VFS_MKDIR, |
74 | VFS_MKDIR, |
75 | VFS_UNLINK, |
75 | VFS_UNLINK, |
76 | VFS_RENAME, |
76 | VFS_RENAME, |
77 | VFS_LAST_SRV, /* keep this the last member of this enum */ |
77 | VFS_LAST_SRV, /* keep this the last member of this enum */ |
78 | } vfs_request_srv_t; |
78 | } vfs_request_srv_t; |
79 | 79 | ||
80 | 80 | ||
81 | /** |
81 | /** |
82 | * An instance of this structure is associated with a particular FS operation. |
82 | * An instance of this structure is associated with a particular FS operation. |
83 | * It tells VFS if the FS supports the operation or maybe if a default one |
83 | * It tells VFS if the FS supports the operation or maybe if a default one |
84 | * should be used. |
84 | * should be used. |
85 | */ |
85 | */ |
86 | typedef enum { |
86 | typedef enum { |
87 | VFS_OP_NULL = 0, |
87 | VFS_OP_NULL = 0, |
88 | VFS_OP_DEFAULT, |
88 | VFS_OP_DEFAULT, |
89 | VFS_OP_DEFINED |
89 | VFS_OP_DEFINED |
90 | } vfs_op_t; |
90 | } vfs_op_t; |
91 | 91 | ||
92 | #define FS_NAME_MAXLEN 20 |
92 | #define FS_NAME_MAXLEN 20 |
93 | 93 | ||
94 | /** |
94 | /** |
95 | * A structure like this is passed to VFS by each individual FS upon its |
95 | * A structure like this is passed to VFS by each individual FS upon its |
96 | * registration. It assosiates a human-readable identifier with each |
96 | * registration. It assosiates a human-readable identifier with each |
97 | * registered FS. More importantly, through this structure, the FS announces |
97 | * registered FS. More importantly, through this structure, the FS announces |
98 | * what operations it supports. |
98 | * what operations it supports. |
99 | */ |
99 | */ |
100 | typedef struct { |
100 | typedef struct { |
101 | /** Unique identifier of the fs. */ |
101 | /** Unique identifier of the fs. */ |
102 | char name[FS_NAME_MAXLEN + 1]; |
102 | char name[FS_NAME_MAXLEN + 1]; |
103 | 103 | ||
104 | /** Operations. */ |
104 | /** Operations. */ |
105 | vfs_op_t ops[VFS_LAST_CLNT - VFS_FIRST]; |
105 | vfs_op_t ops[VFS_LAST_CLNT - VFS_FIRST]; |
106 | } vfs_info_t; |
106 | } vfs_info_t; |
107 | 107 | ||
108 | /** |
108 | /** |
109 | * A structure like this will be allocated for each registered file system. |
109 | * A structure like this will be allocated for each registered file system. |
110 | */ |
110 | */ |
111 | typedef struct { |
111 | typedef struct { |
112 | link_t fs_link; |
112 | link_t fs_link; |
113 | vfs_info_t vfs_info; |
113 | vfs_info_t vfs_info; |
114 | fs_handle_t fs_handle; |
114 | fs_handle_t fs_handle; |
115 | futex_t phone_futex; /**< Phone serializing futex. */ |
115 | futex_t phone_futex; /**< Phone serializing futex. */ |
116 | ipcarg_t phone; |
116 | ipcarg_t phone; |
117 | } fs_info_t; |
117 | } fs_info_t; |
118 | 118 | ||
119 | /** |
119 | /** |
120 | * VFS_PAIR uniquely represents a file system instance. |
120 | * VFS_PAIR uniquely represents a file system instance. |
121 | */ |
121 | */ |
122 | #define VFS_PAIR \ |
122 | #define VFS_PAIR \ |
123 | fs_handle_t fs_handle; \ |
123 | fs_handle_t fs_handle; \ |
124 | dev_handle_t dev_handle; |
124 | dev_handle_t dev_handle; |
125 | 125 | ||
126 | /** |
126 | /** |
127 | * VFS_TRIPLET uniquely identifies a file system node (e.g. directory, file) but |
127 | * VFS_TRIPLET uniquely identifies a file system node (e.g. directory, file) but |
128 | * doesn't contain any state. For a stateful structure, see vfs_node_t. |
128 | * doesn't contain any state. For a stateful structure, see vfs_node_t. |
129 | * |
129 | * |
130 | * @note fs_handle, dev_handle and index are meant to be returned in one |
130 | * @note fs_handle, dev_handle and index are meant to be returned in one |
131 | * IPC reply. |
131 | * IPC reply. |
132 | */ |
132 | */ |
133 | #define VFS_TRIPLET \ |
133 | #define VFS_TRIPLET \ |
134 | VFS_PAIR; \ |
134 | VFS_PAIR; \ |
135 | fs_index_t index; |
135 | fs_index_t index; |
136 | 136 | ||
137 | typedef struct { |
137 | typedef struct { |
138 | VFS_PAIR; |
138 | VFS_PAIR; |
139 | } vfs_pair_t; |
139 | } vfs_pair_t; |
140 | 140 | ||
141 | typedef struct { |
141 | typedef struct { |
142 | VFS_TRIPLET; |
142 | VFS_TRIPLET; |
143 | } vfs_triplet_t; |
143 | } vfs_triplet_t; |
144 | 144 | ||
145 | /* |
145 | /* |
146 | * Lookup flags. |
146 | * Lookup flags. |
147 | */ |
147 | */ |
148 | /** |
148 | /** |
149 | * No lookup flags used. |
149 | * No lookup flags used. |
150 | */ |
150 | */ |
151 | #define L_NONE 0 |
151 | #define L_NONE 0 |
152 | /** |
152 | /** |
153 | * Lookup will succeed only if the object is a regular file. If L_CREATE is |
153 | * Lookup will succeed only if the object is a regular file. If L_CREATE is |
154 | * specified, an empty file will be created. This flag is mutually exclusive |
154 | * specified, an empty file will be created. This flag is mutually exclusive |
155 | * with L_DIRECTORY. |
155 | * with L_DIRECTORY. |
156 | */ |
156 | */ |
157 | #define L_FILE 1 |
157 | #define L_FILE 1 |
158 | /** |
158 | /** |
159 | * Lookup wil succeed only if the object is a directory. If L_CREATE is |
159 | * Lookup wil succeed only if the object is a directory. If L_CREATE is |
160 | * specified, an empty directory will be created. This flag is mutually |
160 | * specified, an empty directory will be created. This flag is mutually |
161 | * exclusive with L_FILE. |
161 | * exclusive with L_FILE. |
162 | */ |
162 | */ |
163 | #define L_DIRECTORY 2 |
163 | #define L_DIRECTORY 2 |
164 | /** |
164 | /** |
165 | * When used with L_CREATE, L_EXCLUSIVE will cause the lookup to fail if the |
165 | * When used with L_CREATE, L_EXCLUSIVE will cause the lookup to fail if the |
166 | * object already exists. L_EXCLUSIVE is implied when L_DIRECTORY is used. |
166 | * object already exists. L_EXCLUSIVE is implied when L_DIRECTORY is used. |
167 | */ |
167 | */ |
168 | #define L_EXCLUSIVE 4 |
168 | #define L_EXCLUSIVE 4 |
169 | /** |
169 | /** |
170 | * L_CREATE is used for creating both regular files and directories. |
170 | * L_CREATE is used for creating both regular files and directories. |
171 | */ |
171 | */ |
172 | #define L_CREATE 8 |
172 | #define L_CREATE 8 |
173 | /** |
173 | /** |
174 | * L_LINK is used for linking to an already existing nodes. |
174 | * L_LINK is used for linking to an already existing nodes. |
175 | */ |
175 | */ |
176 | #define L_LINK 16 |
176 | #define L_LINK 16 |
177 | /** |
177 | /** |
178 | * L_UNLINK is used to remove leaves from the file system namespace. This flag |
178 | * L_UNLINK is used to remove leaves from the file system namespace. This flag |
179 | * cannot be passed directly by the client, but will be set by VFS during |
179 | * cannot be passed directly by the client, but will be set by VFS during |
180 | * VFS_UNLINK. |
180 | * VFS_UNLINK. |
181 | */ |
181 | */ |
182 | #define L_UNLINK 32 |
182 | #define L_UNLINK 32 |
183 | /** |
183 | /** |
184 | * L_PARENT performs a lookup but returns the triplet of the parent node. |
184 | * L_PARENT performs a lookup but returns the triplet of the parent node. |
185 | * This flag may not be combined with any other lookup flag. |
185 | * This flag may not be combined with any other lookup flag. |
186 | */ |
186 | */ |
187 | #define L_PARENT 64 |
187 | #define L_PARENT 64 |
188 | 188 | ||
189 | typedef struct { |
189 | typedef struct { |
190 | vfs_triplet_t triplet; |
190 | vfs_triplet_t triplet; |
191 | size_t size; |
191 | size_t size; |
192 | unsigned lnkcnt; |
192 | unsigned lnkcnt; |
193 | } vfs_lookup_res_t; |
193 | } vfs_lookup_res_t; |
194 | 194 | ||
195 | /** |
195 | /** |
196 | * Instances of this type represent an active, in-memory VFS node and any state |
196 | * Instances of this type represent an active, in-memory VFS node and any state |
197 | * which may be associated with it. |
197 | * which may be associated with it. |
198 | */ |
198 | */ |
199 | typedef struct { |
199 | typedef struct { |
200 | VFS_TRIPLET; /**< Identity of the node. */ |
200 | VFS_TRIPLET; /**< Identity of the node. */ |
201 | 201 | ||
202 | /** |
202 | /** |
203 | * Usage counter. This includes, but is not limited to, all vfs_file_t |
203 | * Usage counter. This includes, but is not limited to, all vfs_file_t |
204 | * structures that reference this node. |
204 | * structures that reference this node. |
205 | */ |
205 | */ |
206 | unsigned refcnt; |
206 | unsigned refcnt; |
207 | 207 | ||
208 | /** Number of names this node has in the file system namespace. */ |
208 | /** Number of names this node has in the file system namespace. */ |
209 | unsigned lnkcnt; |
209 | unsigned lnkcnt; |
210 | 210 | ||
211 | link_t nh_link; /**< Node hash-table link. */ |
211 | link_t nh_link; /**< Node hash-table link. */ |
212 | size_t size; /**< Cached size if the node is a file. */ |
212 | size_t size; /**< Cached size if the node is a file. */ |
213 | 213 | ||
214 | /** |
214 | /** |
215 | * Holding this rwlock prevents modifications of the node's contents. |
215 | * Holding this rwlock prevents modifications of the node's contents. |
216 | */ |
216 | */ |
217 | rwlock_t contents_rwlock; |
217 | rwlock_t contents_rwlock; |
218 | } vfs_node_t; |
218 | } vfs_node_t; |
219 | 219 | ||
220 | /** |
220 | /** |
221 | * Instances of this type represent an open file. If the file is opened by more |
221 | * Instances of this type represent an open file. If the file is opened by more |
222 | * than one task, there will be a separate structure allocated for each task. |
222 | * than one task, there will be a separate structure allocated for each task. |
223 | */ |
223 | */ |
224 | typedef struct { |
224 | typedef struct { |
225 | /** Serializes access to this open file. */ |
225 | /** Serializes access to this open file. */ |
226 | futex_t lock; |
226 | futex_t lock; |
227 | 227 | ||
228 | vfs_node_t *node; |
228 | vfs_node_t *node; |
229 | 229 | ||
230 | /** Number of file handles referencing this file. */ |
230 | /** Number of file handles referencing this file. */ |
231 | unsigned refcnt; |
231 | unsigned refcnt; |
232 | 232 | ||
233 | /** Append on write. */ |
233 | /** Append on write. */ |
234 | bool append; |
234 | bool append; |
235 | 235 | ||
236 | /** Current position in the file. */ |
236 | /** Current position in the file. */ |
237 | off_t pos; |
237 | off_t pos; |
238 | } vfs_file_t; |
238 | } vfs_file_t; |
239 | 239 | ||
240 | extern futex_t nodes_futex; |
240 | extern futex_t nodes_futex; |
241 | 241 | ||
242 | extern link_t fs_head; /**< List of registered file systems. */ |
242 | extern link_t fs_head; /**< List of registered file systems. */ |
243 | 243 | ||
244 | extern vfs_triplet_t rootfs; /**< Root node of the root file system. */ |
244 | extern vfs_triplet_t rootfs; /**< Root node of the root file system. */ |
245 | 245 | ||
246 | #define MAX_PATH_LEN (64 * 1024) |
246 | #define MAX_PATH_LEN (64 * 1024) |
247 | 247 | ||
248 | #define PLB_SIZE (2 * MAX_PATH_LEN) |
248 | #define PLB_SIZE (2 * MAX_PATH_LEN) |
249 | 249 | ||
250 | /** Each instance of this type describes one path lookup in progress. */ |
250 | /** Each instance of this type describes one path lookup in progress. */ |
251 | typedef struct { |
251 | typedef struct { |
252 | link_t plb_link; /**< Active PLB entries list link. */ |
252 | link_t plb_link; /**< Active PLB entries list link. */ |
253 | unsigned index; /**< Index of the first character in PLB. */ |
253 | unsigned index; /**< Index of the first character in PLB. */ |
254 | size_t len; /**< Number of characters in this PLB entry. */ |
254 | size_t len; /**< Number of characters in this PLB entry. */ |
255 | } plb_entry_t; |
255 | } plb_entry_t; |
256 | 256 | ||
257 | extern futex_t plb_futex; /**< Futex protecting plb and plb_head. */ |
257 | extern futex_t plb_futex; /**< Futex protecting plb and plb_head. */ |
258 | extern uint8_t *plb; /**< Path Lookup Buffer */ |
258 | extern uint8_t *plb; /**< Path Lookup Buffer */ |
259 | extern link_t plb_head; /**< List of active PLB entries. */ |
259 | extern link_t plb_head; /**< List of active PLB entries. */ |
260 | 260 | ||
261 | /** Holding this rwlock prevents changes in file system namespace. */ |
261 | /** Holding this rwlock prevents changes in file system namespace. */ |
262 | extern rwlock_t namespace_rwlock; |
262 | extern rwlock_t namespace_rwlock; |
263 | 263 | ||
264 | extern int vfs_grab_phone(fs_handle_t); |
264 | extern int vfs_grab_phone(fs_handle_t); |
265 | extern void vfs_release_phone(int); |
265 | extern void vfs_release_phone(int); |
266 | 266 | ||
267 | extern fs_handle_t fs_name_to_handle(char *, bool); |
267 | extern fs_handle_t fs_name_to_handle(char *, bool); |
268 | 268 | ||
269 | extern int vfs_lookup_internal(char *, int, vfs_lookup_res_t *, vfs_pair_t *, |
269 | extern int vfs_lookup_internal(char *, int, vfs_lookup_res_t *, vfs_pair_t *, |
270 | ...); |
270 | ...); |
271 | 271 | ||
272 | extern bool vfs_nodes_init(void); |
272 | extern bool vfs_nodes_init(void); |
273 | extern vfs_node_t *vfs_node_get(vfs_lookup_res_t *); |
273 | extern vfs_node_t *vfs_node_get(vfs_lookup_res_t *); |
274 | extern void vfs_node_put(vfs_node_t *); |
274 | extern void vfs_node_put(vfs_node_t *); |
275 | 275 | ||
276 | #define MAX_OPEN_FILES 128 |
276 | #define MAX_OPEN_FILES 128 |
277 | 277 | ||
278 | extern bool vfs_files_init(void); |
278 | extern bool vfs_files_init(void); |
279 | extern vfs_file_t *vfs_file_get(int); |
279 | extern vfs_file_t *vfs_file_get(int); |
280 | extern int vfs_fd_alloc(void); |
280 | extern int vfs_fd_alloc(void); |
281 | extern void vfs_fd_free(int); |
281 | extern void vfs_fd_free(int); |
282 | 282 | ||
283 | extern void vfs_file_addref(vfs_file_t *); |
283 | extern void vfs_file_addref(vfs_file_t *); |
284 | extern void vfs_file_delref(vfs_file_t *); |
284 | extern void vfs_file_delref(vfs_file_t *); |
285 | 285 | ||
286 | extern void vfs_node_addref(vfs_node_t *); |
286 | extern void vfs_node_addref(vfs_node_t *); |
287 | extern void vfs_node_delref(vfs_node_t *); |
287 | extern void vfs_node_delref(vfs_node_t *); |
288 | 288 | ||
289 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
289 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
290 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |
290 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |
291 | extern void vfs_open(ipc_callid_t, ipc_call_t *); |
291 | extern void vfs_open(ipc_callid_t, ipc_call_t *); |
292 | extern void vfs_close(ipc_callid_t, ipc_call_t *); |
292 | extern void vfs_close(ipc_callid_t, ipc_call_t *); |
293 | extern void vfs_read(ipc_callid_t, ipc_call_t *); |
293 | extern void vfs_read(ipc_callid_t, ipc_call_t *); |
294 | extern void vfs_write(ipc_callid_t, ipc_call_t *); |
294 | extern void vfs_write(ipc_callid_t, ipc_call_t *); |
295 | extern void vfs_seek(ipc_callid_t, ipc_call_t *); |
295 | extern void vfs_seek(ipc_callid_t, ipc_call_t *); |
296 | extern void vfs_truncate(ipc_callid_t, ipc_call_t *); |
296 | extern void vfs_truncate(ipc_callid_t, ipc_call_t *); |
297 | extern void vfs_mkdir(ipc_callid_t, ipc_call_t *); |
297 | extern void vfs_mkdir(ipc_callid_t, ipc_call_t *); |
298 | extern void vfs_unlink(ipc_callid_t, ipc_call_t *); |
298 | extern void vfs_unlink(ipc_callid_t, ipc_call_t *); |
299 | extern void vfs_rename(ipc_callid_t, ipc_call_t *); |
299 | extern void vfs_rename(ipc_callid_t, ipc_call_t *); |
300 | 300 | ||
301 | #endif |
301 | #endif |
302 | 302 | ||
303 | /** |
303 | /** |
304 | * @} |
304 | * @} |
305 | */ |
305 | */ |
306 | 306 |