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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 | // FIXME: according to CONFIG_DEBUG |
43 | // FIXME: according to CONFIG_DEBUG |
44 | // #define dprintf(...) printf(__VA_ARGS__) |
44 | // #define dprintf(...) printf(__VA_ARGS__) |
45 | 45 | ||
46 | #define dprintf(...) |
46 | #define dprintf(...) |
47 | 47 | ||
48 | #define VFS_FIRST IPC_FIRST_USER_METHOD |
48 | #define VFS_FIRST IPC_FIRST_USER_METHOD |
49 | 49 | ||
50 | #define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST) |
50 | #define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST) |
51 | 51 | ||
52 | /* Basic types. */ |
52 | /* Basic types. */ |
53 | typedef int16_t fs_handle_t; |
53 | typedef int16_t fs_handle_t; |
54 | typedef int16_t dev_handle_t; |
54 | typedef int16_t dev_handle_t; |
55 | typedef uint32_t fs_index_t; |
55 | typedef uint32_t fs_index_t; |
56 | 56 | ||
57 | typedef enum { |
57 | typedef enum { |
58 | VFS_READ = VFS_FIRST, |
58 | VFS_READ = VFS_FIRST, |
59 | VFS_WRITE, |
59 | VFS_WRITE, |
60 | VFS_TRUNCATE, |
60 | VFS_TRUNCATE, |
61 | VFS_MOUNT, |
61 | VFS_MOUNT, |
62 | VFS_UNMOUNT, |
62 | VFS_UNMOUNT, |
63 | VFS_LAST_CMN, /* keep this the last member of this enum */ |
63 | VFS_LAST_CMN, /* keep this the last member of this enum */ |
64 | } vfs_request_cmn_t; |
64 | } vfs_request_cmn_t; |
65 | 65 | ||
66 | typedef enum { |
66 | typedef enum { |
67 | VFS_LOOKUP = VFS_LAST_CMN, |
67 | VFS_LOOKUP = VFS_LAST_CMN, |
68 | VFS_MOUNTED, |
68 | VFS_MOUNTED, |
69 | VFS_DESTROY, |
69 | VFS_DESTROY, |
70 | VFS_LAST_CLNT, /* keep this the last member of this enum */ |
70 | VFS_LAST_CLNT, /* keep this the last member of this enum */ |
71 | } vfs_request_clnt_t; |
71 | } vfs_request_clnt_t; |
72 | 72 | ||
73 | typedef enum { |
73 | typedef enum { |
74 | VFS_REGISTER = VFS_LAST_CMN, |
74 | VFS_REGISTER = VFS_LAST_CMN, |
75 | VFS_OPEN, |
75 | VFS_OPEN, |
76 | VFS_CLOSE, |
76 | VFS_CLOSE, |
77 | VFS_SEEK, |
77 | VFS_SEEK, |
78 | VFS_MKDIR, |
78 | VFS_MKDIR, |
79 | VFS_UNLINK, |
79 | VFS_UNLINK, |
80 | VFS_RENAME, |
80 | VFS_RENAME, |
81 | VFS_LAST_SRV, /* keep this the last member of this enum */ |
81 | VFS_LAST_SRV, /* keep this the last member of this enum */ |
82 | } vfs_request_srv_t; |
82 | } vfs_request_srv_t; |
83 | 83 | ||
84 | 84 | ||
85 | /** |
85 | /** |
86 | * An instance of this structure is associated with a particular FS operation. |
86 | * An instance of this structure is associated with a particular FS operation. |
87 | * It tells VFS if the FS supports the operation or maybe if a default one |
87 | * It tells VFS if the FS supports the operation or maybe if a default one |
88 | * should be used. |
88 | * should be used. |
89 | */ |
89 | */ |
90 | typedef enum { |
90 | typedef enum { |
91 | VFS_OP_NULL = 0, |
91 | VFS_OP_NULL = 0, |
92 | VFS_OP_DEFAULT, |
92 | VFS_OP_DEFAULT, |
93 | VFS_OP_DEFINED |
93 | VFS_OP_DEFINED |
94 | } vfs_op_t; |
94 | } vfs_op_t; |
95 | 95 | ||
96 | #define FS_NAME_MAXLEN 20 |
96 | #define FS_NAME_MAXLEN 20 |
97 | 97 | ||
98 | /** |
98 | /** |
99 | * A structure like this is passed to VFS by each individual FS upon its |
99 | * A structure like this is passed to VFS by each individual FS upon its |
100 | * registration. It assosiates a human-readable identifier with each |
100 | * registration. It assosiates a human-readable identifier with each |
101 | * registered FS. More importantly, through this structure, the FS announces |
101 | * registered FS. More importantly, through this structure, the FS announces |
102 | * what operations it supports. |
102 | * what operations it supports. |
103 | */ |
103 | */ |
104 | typedef struct { |
104 | typedef struct { |
105 | /** Unique identifier of the fs. */ |
105 | /** Unique identifier of the fs. */ |
106 | char name[FS_NAME_MAXLEN + 1]; |
106 | char name[FS_NAME_MAXLEN + 1]; |
107 | 107 | ||
108 | /** Operations. */ |
108 | /** Operations. */ |
109 | vfs_op_t ops[VFS_LAST_CLNT - VFS_FIRST]; |
109 | vfs_op_t ops[VFS_LAST_CLNT - VFS_FIRST]; |
110 | } vfs_info_t; |
110 | } vfs_info_t; |
111 | 111 | ||
112 | /** |
112 | /** |
113 | * A structure like this will be allocated for each registered file system. |
113 | * A structure like this will be allocated for each registered file system. |
114 | */ |
114 | */ |
115 | typedef struct { |
115 | typedef struct { |
116 | link_t fs_link; |
116 | link_t fs_link; |
117 | vfs_info_t vfs_info; |
117 | vfs_info_t vfs_info; |
118 | fs_handle_t fs_handle; |
118 | fs_handle_t fs_handle; |
119 | futex_t phone_futex; /**< Phone serializing futex. */ |
119 | futex_t phone_futex; /**< Phone serializing futex. */ |
120 | ipcarg_t phone; |
120 | ipcarg_t phone; |
121 | } fs_info_t; |
121 | } fs_info_t; |
122 | 122 | ||
123 | /** |
123 | /** |
124 | * VFS_PAIR uniquely represents a file system instance. |
124 | * VFS_PAIR uniquely represents a file system instance. |
125 | */ |
125 | */ |
126 | #define VFS_PAIR \ |
126 | #define VFS_PAIR \ |
127 | fs_handle_t fs_handle; \ |
127 | fs_handle_t fs_handle; \ |
128 | dev_handle_t dev_handle; |
128 | dev_handle_t dev_handle; |
129 | 129 | ||
130 | /** |
130 | /** |
131 | * VFS_TRIPLET uniquely identifies a file system node (e.g. directory, file) but |
131 | * VFS_TRIPLET uniquely identifies a file system node (e.g. directory, file) but |
132 | * doesn't contain any state. For a stateful structure, see vfs_node_t. |
132 | * doesn't contain any state. For a stateful structure, see vfs_node_t. |
133 | * |
133 | * |
134 | * @note fs_handle, dev_handle and index are meant to be returned in one |
134 | * @note fs_handle, dev_handle and index are meant to be returned in one |
135 | * IPC reply. |
135 | * IPC reply. |
136 | */ |
136 | */ |
137 | #define VFS_TRIPLET \ |
137 | #define VFS_TRIPLET \ |
138 | VFS_PAIR; \ |
138 | VFS_PAIR; \ |
139 | fs_index_t index; |
139 | fs_index_t index; |
140 | 140 | ||
141 | typedef struct { |
141 | typedef struct { |
142 | VFS_PAIR; |
142 | VFS_PAIR; |
143 | } vfs_pair_t; |
143 | } vfs_pair_t; |
144 | 144 | ||
145 | typedef struct { |
145 | typedef struct { |
146 | VFS_TRIPLET; |
146 | VFS_TRIPLET; |
147 | } vfs_triplet_t; |
147 | } vfs_triplet_t; |
148 | 148 | ||
149 | /* |
149 | /* |
150 | * Lookup flags. |
150 | * Lookup flags. |
151 | */ |
151 | */ |
152 | /** |
152 | /** |
153 | * No lookup flags used. |
153 | * No lookup flags used. |
154 | */ |
154 | */ |
155 | #define L_NONE 0 |
155 | #define L_NONE 0 |
156 | /** |
156 | /** |
157 | * Lookup will succeed only if the object is a regular file. If L_CREATE is |
157 | * Lookup will succeed only if the object is a regular file. If L_CREATE is |
158 | * specified, an empty file will be created. This flag is mutually exclusive |
158 | * specified, an empty file will be created. This flag is mutually exclusive |
159 | * with L_DIRECTORY. |
159 | * with L_DIRECTORY. |
160 | */ |
160 | */ |
161 | #define L_FILE 1 |
161 | #define L_FILE 1 |
162 | /** |
162 | /** |
163 | * Lookup wil succeed only if the object is a directory. If L_CREATE is |
163 | * Lookup wil succeed only if the object is a directory. If L_CREATE is |
164 | * specified, an empty directory will be created. This flag is mutually |
164 | * specified, an empty directory will be created. This flag is mutually |
165 | * exclusive with L_FILE. |
165 | * exclusive with L_FILE. |
166 | */ |
166 | */ |
167 | #define L_DIRECTORY 2 |
167 | #define L_DIRECTORY 2 |
168 | /** |
168 | /** |
169 | * When used with L_CREATE, L_EXCLUSIVE will cause the lookup to fail if the |
169 | * When used with L_CREATE, L_EXCLUSIVE will cause the lookup to fail if the |
170 | * object already exists. L_EXCLUSIVE is implied when L_DIRECTORY is used. |
170 | * object already exists. L_EXCLUSIVE is implied when L_DIRECTORY is used. |
171 | */ |
171 | */ |
172 | #define L_EXCLUSIVE 4 |
172 | #define L_EXCLUSIVE 4 |
173 | /** |
173 | /** |
174 | * L_CREATE is used for creating both regular files and directories. |
174 | * L_CREATE is used for creating both regular files and directories. |
175 | */ |
175 | */ |
176 | #define L_CREATE 8 |
176 | #define L_CREATE 8 |
177 | /** |
177 | /** |
178 | * L_LINK is used for linking to an already existing nodes. |
178 | * L_LINK is used for linking to an already existing nodes. |
179 | */ |
179 | */ |
180 | #define L_LINK 16 |
180 | #define L_LINK 16 |
181 | /** |
181 | /** |
182 | * L_UNLINK is used to remove leaves from the file system namespace. This flag |
182 | * L_UNLINK is used to remove leaves from the file system namespace. This flag |
183 | * cannot be passed directly by the client, but will be set by VFS during |
183 | * cannot be passed directly by the client, but will be set by VFS during |
184 | * VFS_UNLINK. |
184 | * VFS_UNLINK. |
185 | */ |
185 | */ |
186 | #define L_UNLINK 32 |
186 | #define L_UNLINK 32 |
187 | /** |
187 | /** |
188 | * L_PARENT performs a lookup but returns the triplet of the parent node. |
188 | * L_PARENT performs a lookup but returns the triplet of the parent node. |
189 | * This flag may not be combined with any other lookup flag. |
189 | * This flag may not be combined with any other lookup flag. |
190 | */ |
190 | */ |
191 | #define L_PARENT 64 |
191 | #define L_PARENT 64 |
192 | 192 | ||
193 | typedef struct { |
193 | typedef struct { |
194 | vfs_triplet_t triplet; |
194 | vfs_triplet_t triplet; |
195 | size_t size; |
195 | size_t size; |
196 | unsigned lnkcnt; |
196 | unsigned lnkcnt; |
197 | } vfs_lookup_res_t; |
197 | } vfs_lookup_res_t; |
198 | 198 | ||
199 | /** |
199 | /** |
200 | * Instances of this type represent an active, in-memory VFS node and any state |
200 | * Instances of this type represent an active, in-memory VFS node and any state |
201 | * which may be associated with it. |
201 | * which may be associated with it. |
202 | */ |
202 | */ |
203 | typedef struct { |
203 | typedef struct { |
204 | VFS_TRIPLET; /**< Identity of the node. */ |
204 | VFS_TRIPLET; /**< Identity of the node. */ |
205 | 205 | ||
206 | /** |
206 | /** |
207 | * Usage counter. This includes, but is not limited to, all vfs_file_t |
207 | * Usage counter. This includes, but is not limited to, all vfs_file_t |
208 | * structures that reference this node. |
208 | * structures that reference this node. |
209 | */ |
209 | */ |
210 | unsigned refcnt; |
210 | unsigned refcnt; |
211 | 211 | ||
212 | /** Number of names this node has in the file system namespace. */ |
212 | /** Number of names this node has in the file system namespace. */ |
213 | unsigned lnkcnt; |
213 | unsigned lnkcnt; |
214 | 214 | ||
215 | link_t nh_link; /**< Node hash-table link. */ |
215 | link_t nh_link; /**< Node hash-table link. */ |
216 | size_t size; /**< Cached size if the node is a file. */ |
216 | size_t size; /**< Cached size if the node is a file. */ |
217 | 217 | ||
218 | /** |
218 | /** |
219 | * Holding this rwlock prevents modifications of the node's contents. |
219 | * Holding this rwlock prevents modifications of the node's contents. |
220 | */ |
220 | */ |
221 | rwlock_t contents_rwlock; |
221 | rwlock_t contents_rwlock; |
222 | } vfs_node_t; |
222 | } vfs_node_t; |
223 | 223 | ||
224 | /** |
224 | /** |
225 | * Instances of this type represent an open file. If the file is opened by more |
225 | * Instances of this type represent an open file. If the file is opened by more |
226 | * than one task, there will be a separate structure allocated for each task. |
226 | * than one task, there will be a separate structure allocated for each task. |
227 | */ |
227 | */ |
228 | typedef struct { |
228 | typedef struct { |
229 | /** Serializes access to this open file. */ |
229 | /** Serializes access to this open file. */ |
230 | futex_t lock; |
230 | futex_t lock; |
231 | 231 | ||
232 | vfs_node_t *node; |
232 | vfs_node_t *node; |
233 | 233 | ||
234 | /** Number of file handles referencing this file. */ |
234 | /** Number of file handles referencing this file. */ |
235 | unsigned refcnt; |
235 | unsigned refcnt; |
236 | 236 | ||
237 | /** Append on write. */ |
237 | /** Append on write. */ |
238 | bool append; |
238 | bool append; |
239 | 239 | ||
240 | /** Current position in the file. */ |
240 | /** Current position in the file. */ |
241 | off_t pos; |
241 | off_t pos; |
242 | } vfs_file_t; |
242 | } vfs_file_t; |
243 | 243 | ||
244 | extern futex_t nodes_futex; |
244 | extern futex_t nodes_futex; |
245 | 245 | ||
246 | extern link_t fs_head; /**< List of registered file systems. */ |
246 | extern link_t fs_head; /**< List of registered file systems. */ |
247 | 247 | ||
248 | extern vfs_pair_t rootfs; /**< Root file system. */ |
248 | extern vfs_pair_t rootfs; /**< Root file system. */ |
249 | 249 | ||
250 | #define MAX_PATH_LEN (64 * 1024) |
250 | #define MAX_PATH_LEN (64 * 1024) |
251 | 251 | ||
252 | #define PLB_SIZE (2 * MAX_PATH_LEN) |
252 | #define PLB_SIZE (2 * MAX_PATH_LEN) |
253 | 253 | ||
254 | /** Each instance of this type describes one path lookup in progress. */ |
254 | /** Each instance of this type describes one path lookup in progress. */ |
255 | typedef struct { |
255 | typedef struct { |
256 | link_t plb_link; /**< Active PLB entries list link. */ |
256 | link_t plb_link; /**< Active PLB entries list link. */ |
257 | unsigned index; /**< Index of the first character in PLB. */ |
257 | unsigned index; /**< Index of the first character in PLB. */ |
258 | size_t len; /**< Number of characters in this PLB entry. */ |
258 | size_t len; /**< Number of characters in this PLB entry. */ |
259 | } plb_entry_t; |
259 | } plb_entry_t; |
260 | 260 | ||
261 | extern futex_t plb_futex; /**< Futex protecting plb and plb_head. */ |
261 | extern futex_t plb_futex; /**< Futex protecting plb and plb_head. */ |
262 | extern uint8_t *plb; /**< Path Lookup Buffer */ |
262 | extern uint8_t *plb; /**< Path Lookup Buffer */ |
263 | extern link_t plb_head; /**< List of active PLB entries. */ |
263 | extern link_t plb_head; /**< List of active PLB entries. */ |
264 | 264 | ||
265 | /** Holding this rwlock prevents changes in file system namespace. */ |
265 | /** Holding this rwlock prevents changes in file system namespace. */ |
266 | extern rwlock_t namespace_rwlock; |
266 | extern rwlock_t namespace_rwlock; |
267 | 267 | ||
268 | extern int vfs_grab_phone(fs_handle_t); |
268 | extern int vfs_grab_phone(fs_handle_t); |
269 | extern void vfs_release_phone(int); |
269 | extern void vfs_release_phone(int); |
270 | 270 | ||
271 | extern fs_handle_t fs_name_to_handle(char *, bool); |
271 | extern fs_handle_t fs_name_to_handle(char *, bool); |
272 | 272 | ||
273 | extern int vfs_lookup_internal(char *, int, vfs_lookup_res_t *, vfs_pair_t *, |
273 | extern int vfs_lookup_internal(char *, int, vfs_lookup_res_t *, vfs_pair_t *, |
274 | ...); |
274 | ...); |
275 | 275 | ||
276 | extern bool vfs_nodes_init(void); |
276 | extern bool vfs_nodes_init(void); |
277 | extern vfs_node_t *vfs_node_get(vfs_lookup_res_t *); |
277 | extern vfs_node_t *vfs_node_get(vfs_lookup_res_t *); |
278 | extern void vfs_node_put(vfs_node_t *); |
278 | extern void vfs_node_put(vfs_node_t *); |
279 | 279 | ||
280 | #define MAX_OPEN_FILES 128 |
280 | #define MAX_OPEN_FILES 128 |
281 | 281 | ||
282 | extern bool vfs_files_init(void); |
282 | extern bool vfs_files_init(void); |
283 | extern vfs_file_t *vfs_file_get(int); |
283 | extern vfs_file_t *vfs_file_get(int); |
284 | extern int vfs_fd_alloc(void); |
284 | extern int vfs_fd_alloc(void); |
285 | extern int vfs_fd_free(int); |
285 | extern int vfs_fd_free(int); |
286 | 286 | ||
287 | extern void vfs_file_addref(vfs_file_t *); |
287 | extern void vfs_file_addref(vfs_file_t *); |
288 | extern void vfs_file_delref(vfs_file_t *); |
288 | extern void vfs_file_delref(vfs_file_t *); |
289 | 289 | ||
290 | extern void vfs_node_addref(vfs_node_t *); |
290 | extern void vfs_node_addref(vfs_node_t *); |
291 | extern void vfs_node_delref(vfs_node_t *); |
291 | extern void vfs_node_delref(vfs_node_t *); |
292 | 292 | ||
293 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
293 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
294 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |
294 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |
295 | extern void vfs_open(ipc_callid_t, ipc_call_t *); |
295 | extern void vfs_open(ipc_callid_t, ipc_call_t *); |
296 | extern void vfs_close(ipc_callid_t, ipc_call_t *); |
296 | extern void vfs_close(ipc_callid_t, ipc_call_t *); |
297 | extern void vfs_read(ipc_callid_t, ipc_call_t *); |
297 | extern void vfs_read(ipc_callid_t, ipc_call_t *); |
298 | extern void vfs_write(ipc_callid_t, ipc_call_t *); |
298 | extern void vfs_write(ipc_callid_t, ipc_call_t *); |
299 | extern void vfs_seek(ipc_callid_t, ipc_call_t *); |
299 | extern void vfs_seek(ipc_callid_t, ipc_call_t *); |
300 | extern void vfs_truncate(ipc_callid_t, ipc_call_t *); |
300 | extern void vfs_truncate(ipc_callid_t, ipc_call_t *); |
301 | extern void vfs_mkdir(ipc_callid_t, ipc_call_t *); |
301 | extern void vfs_mkdir(ipc_callid_t, ipc_call_t *); |
302 | extern void vfs_unlink(ipc_callid_t, ipc_call_t *); |
302 | extern void vfs_unlink(ipc_callid_t, ipc_call_t *); |
303 | extern void vfs_rename(ipc_callid_t, ipc_call_t *); |
303 | extern void vfs_rename(ipc_callid_t, ipc_call_t *); |
304 | 304 | ||
305 | #endif |
305 | #endif |
306 | 306 | ||
307 | /** |
307 | /** |
308 | * @} |
308 | * @} |
309 | */ |
309 | */ |
310 | 310 |