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984263bc MD |
1 | /* |
2 | * Copyright (c) 1989, 1991, 1993 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
2c64e990 | 13 | * 3. Neither the name of the University nor the names of its contributors |
984263bc MD |
14 | * may be used to endorse or promote products derived from this software |
15 | * without specific prior written permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
27 | * SUCH DAMAGE. | |
28 | * | |
29 | * @(#)mount.h 8.21 (Berkeley) 5/20/95 | |
30 | * $FreeBSD: src/sys/sys/mount.h,v 1.89.2.7 2003/04/04 20:35:57 tegge Exp $ | |
31 | */ | |
32 | ||
33 | #ifndef _SYS_MOUNT_H_ | |
34 | #define _SYS_MOUNT_H_ | |
35 | ||
2660f519 | 36 | #include <sys/cdefs.h> |
3c7cc767 | 37 | #include <sys/queue.h> |
95bf5f78 | 38 | #include <sys/tree.h> |
3c7cc767 | 39 | #include <sys/ucred.h> |
984263bc MD |
40 | |
41 | #ifndef _KERNEL | |
47e95680 | 42 | #if __BSD_VISIBLE |
984263bc | 43 | #include <sys/stat.h> |
47e95680 | 44 | #endif /* __BSD_VISIBLE */ |
984263bc MD |
45 | #endif /* !_KERNEL */ |
46 | ||
03d6a592 | 47 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) |
03d6a592 | 48 | #ifndef _SYS_LOCK_H_ |
984263bc MD |
49 | #include <sys/lock.h> |
50 | #endif | |
28623bf9 MD |
51 | #ifndef _SYS_NAMECACHE_H_ |
52 | #include <sys/namecache.h> | |
53 | #endif | |
d9fad06e MD |
54 | #ifndef _SYS_STATVFS_H_ |
55 | #include <sys/statvfs.h> | |
56 | #endif | |
aac0aabd MD |
57 | #ifndef _SYS_THREAD_H_ |
58 | #include <sys/thread.h> | |
59 | #endif | |
e788edda | 60 | #include <sys/vfs_quota.h> |
6dc8f6af | 61 | #include <sys/mplock2.h> |
03d6a592 | 62 | #endif |
984263bc | 63 | |
dadab5e9 | 64 | struct thread; |
2281065e | 65 | struct journal; |
0961aa92 | 66 | struct vop_ops; |
2281065e | 67 | struct vop_mountctl_args; |
0e735c8f | 68 | struct statvfs; |
bd7598aa | 69 | struct vmntvnodescan_info; |
dadab5e9 | 70 | |
984263bc MD |
71 | typedef struct fsid { int32_t val[2]; } fsid_t; /* file system id type */ |
72 | ||
a1626531 TK |
73 | #define fsidcmp(a, b) memcmp((a), (b), sizeof(fsid_t)) |
74 | ||
984263bc | 75 | /* |
3e3a527f MD |
76 | * File identifier. These are unique per filesystem on a single machine. |
77 | * | |
78 | * fix_ext is also used by HAMMER. | |
984263bc MD |
79 | */ |
80 | #define MAXFIDSZ 16 | |
81 | ||
82 | struct fid { | |
83 | u_short fid_len; /* length of data in bytes */ | |
3e3a527f | 84 | u_short fid_ext; /* extended data */ |
984263bc | 85 | char fid_data[MAXFIDSZ]; /* data (variable length) */ |
4e32c858 | 86 | } __packed; |
984263bc MD |
87 | |
88 | /* | |
89 | * file system statistics | |
90 | */ | |
91 | ||
92 | #define MFSNAMELEN 16 /* length of fs type name, including null */ | |
984263bc | 93 | #define MNAMELEN 80 /* length of buffer for returned name */ |
984263bc MD |
94 | |
95 | struct statfs { | |
96 | long f_spare2; /* placeholder */ | |
97 | long f_bsize; /* fundamental file system block size */ | |
98 | long f_iosize; /* optimal transfer block size */ | |
99 | long f_blocks; /* total data blocks in file system */ | |
100 | long f_bfree; /* free blocks in fs */ | |
101 | long f_bavail; /* free blocks avail to non-superuser */ | |
102 | long f_files; /* total file nodes in file system */ | |
103 | long f_ffree; /* free file nodes in fs */ | |
104 | fsid_t f_fsid; /* file system id */ | |
105 | uid_t f_owner; /* user that mounted the filesystem */ | |
106 | int f_type; /* type of filesystem */ | |
107 | int f_flags; /* copy of mount exported flags */ | |
108 | long f_syncwrites; /* count of sync writes since mount */ | |
109 | long f_asyncwrites; /* count of async writes since mount */ | |
110 | char f_fstypename[MFSNAMELEN]; /* fs type name */ | |
111 | char f_mntonname[MNAMELEN]; /* directory on which mounted */ | |
112 | long f_syncreads; /* count of sync reads since mount */ | |
113 | long f_asyncreads; /* count of async reads since mount */ | |
114 | short f_spares1; /* unused spare */ | |
115 | char f_mntfromname[MNAMELEN];/* mounted filesystem */ | |
116 | short f_spares2; /* unused spare */ | |
117 | long f_spare[2]; /* unused spare */ | |
118 | }; | |
119 | ||
ec12abe0 | 120 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) |
408357d8 MD |
121 | |
122 | /* | |
123 | * bio_ops are associated with the mount structure and used in conjuction | |
124 | * with the b_dep field in a buffer. Currently softupdates and HAMMER | |
125 | * utilize this field. | |
59a647b1 MD |
126 | * |
127 | * All bio_ops callbacks must be MPSAFE and could be called without | |
128 | * the mplock. | |
408357d8 MD |
129 | */ |
130 | struct buf; | |
131 | ||
132 | struct bio_ops { | |
133 | TAILQ_ENTRY(bio_ops) entry; | |
134 | void (*io_start) (struct buf *); | |
135 | void (*io_complete) (struct buf *); | |
136 | void (*io_deallocate) (struct buf *); | |
137 | int (*io_fsync) (struct vnode *); | |
138 | int (*io_sync) (struct mount *); | |
139 | void (*io_movedeps) (struct buf *, struct buf *); | |
140 | int (*io_countdeps) (struct buf *, int); | |
27bc0cb1 MD |
141 | int (*io_checkread) (struct buf *); |
142 | int (*io_checkwrite) (struct buf *); | |
408357d8 MD |
143 | }; |
144 | ||
f236a458 FT |
145 | #endif |
146 | ||
95bf5f78 | 147 | /* |
59a9a88c | 148 | * vfs quota accounting |
95bf5f78 FT |
149 | * |
150 | * uids and gids often come in contiguous blocks; use a small linear | |
151 | * array as the basic in-memory accounting allocation unit | |
152 | */ | |
153 | #define ACCT_CHUNK_BITS 5 | |
154 | #define ACCT_CHUNK_NIDS (1<<ACCT_CHUNK_BITS) | |
155 | #define ACCT_CHUNK_MASK (ACCT_CHUNK_NIDS - 1) | |
156 | ||
3e8ec7e9 FT |
157 | struct ac_counters { |
158 | uint64_t space; | |
159 | uint64_t limit; | |
160 | }; | |
161 | ||
95bf5f78 FT |
162 | struct ac_unode { |
163 | RB_ENTRY(ac_unode) rb_entry; | |
164 | uid_t left_bits; | |
3e8ec7e9 | 165 | struct ac_counters uid_chunk[ACCT_CHUNK_NIDS]; |
95bf5f78 FT |
166 | }; |
167 | ||
168 | struct ac_gnode { | |
169 | RB_ENTRY(ac_gnode) rb_entry; | |
170 | gid_t left_bits; | |
3e8ec7e9 | 171 | struct ac_counters gid_chunk[ACCT_CHUNK_NIDS]; |
95bf5f78 FT |
172 | }; |
173 | ||
f236a458 FT |
174 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) |
175 | ||
95bf5f78 FT |
176 | struct vfs_acct { |
177 | RB_HEAD(ac_utree,ac_unode) ac_uroot; | |
178 | RB_HEAD(ac_gtree,ac_gnode) ac_groot; | |
179 | uint64_t ac_bytes; /* total bytes used */ | |
3e8ec7e9 | 180 | uint64_t ac_limit; |
95bf5f78 FT |
181 | struct spinlock ac_spin; /* protective spinlock */ |
182 | }; | |
183 | ||
184 | ||
984263bc MD |
185 | /* |
186 | * Structure per mounted file system. Each mounted file system has an | |
187 | * array of operations and an instance record. The file systems are | |
188 | * put on a doubly linked list. | |
189 | * | |
190 | * NOTE: mnt_nvnodelist and mnt_reservedvnlist. At the moment vnodes | |
191 | * are linked into mnt_nvnodelist. At some point in the near future the | |
192 | * vnode list will be split into a 'dirty' and 'clean' list. mnt_nvnodelist | |
193 | * will become the dirty list and mnt_reservedvnlist will become the 'clean' | |
194 | * list. Filesystem kld's syncing code should remain compatible since | |
195 | * they only need to scan the dirty vnode list (nvnodelist -> dirtyvnodelist). | |
41a01a4d | 196 | * |
fad57d0e MD |
197 | * NOTE: All VFSs must at least populate mnt_vn_ops or those VOP ops that |
198 | * only take namecache pointers will not be able to find their operations | |
199 | * vector via namecache->nc_mount. | |
aac0aabd MD |
200 | * |
201 | * MPSAFE NOTES: mnt_lock interlocks mounting and unmounting operations. | |
202 | * | |
203 | * mnt_token interlocks operations which adjust the mount | |
204 | * structure and will also be held through VFS operations | |
205 | * for VFSes not flagged MPSAFE. | |
87f62b1c MD |
206 | * |
207 | * The VFS should pre-set VFCF_MPSAFE in the VFS_SET() to | |
208 | * avoid use of the mplock during mounting. This will also | |
209 | * cause MNTK_ALL_MPSAFE to be set in mnt_kern_flags. If the | |
210 | * VFS does not set VFCF_MPSAFE then it can set individual | |
211 | * MNTK_*_MPSAFE flags in mnt_kern_flags. | |
984263bc MD |
212 | */ |
213 | TAILQ_HEAD(vnodelst, vnode); | |
2281065e | 214 | TAILQ_HEAD(journallst, journal); |
984263bc MD |
215 | |
216 | struct mount { | |
217 | TAILQ_ENTRY(mount) mnt_list; /* mount list */ | |
218 | struct vfsops *mnt_op; /* operations on fs */ | |
219 | struct vfsconf *mnt_vfc; /* configuration info */ | |
75e479cf | 220 | u_int mnt_namecache_gen; /* ++ to clear negative hits */ |
d84f6fa1 | 221 | u_int mnt_pbuf_count; /* pbuf usage limit */ |
984263bc | 222 | struct vnode *mnt_syncer; /* syncer vnode */ |
50e4012a | 223 | struct syncer_ctx *mnt_syncer_ctx; /* syncer process context */ |
984263bc | 224 | struct vnodelst mnt_nvnodelist; /* list of vnodes this mount */ |
bd7598aa | 225 | TAILQ_HEAD(,vmntvnodescan_info) mnt_vnodescan_list; |
984263bc MD |
226 | struct lock mnt_lock; /* mount structure lock */ |
227 | int mnt_flag; /* flags shared with user */ | |
228 | int mnt_kern_flag; /* kernel only flags */ | |
229 | int mnt_maxsymlinklen; /* max size of short symlink */ | |
230 | struct statfs mnt_stat; /* cache of filesystem stats */ | |
d9fad06e | 231 | struct statvfs mnt_vstat; /* extended stats */ |
984263bc MD |
232 | qaddr_t mnt_data; /* private data */ |
233 | time_t mnt_time; /* last time written*/ | |
234 | u_int mnt_iosize_max; /* max IO request size */ | |
235 | struct vnodelst mnt_reservedvnlist; /* (future) dirty vnode list */ | |
236 | int mnt_nvnodelistsize; /* # of vnodes on this mount */ | |
6ddb7618 MD |
237 | |
238 | /* | |
239 | * ops vectors have a fixed stacking order. All primary calls run | |
ad9dbf42 | 240 | * through mnt_vn_ops. This field is typically assigned to |
6ddb7618 MD |
241 | * mnt_vn_norm_ops. If journaling has been enabled this field is |
242 | * usually assigned to mnt_vn_journal_ops. | |
243 | */ | |
244 | struct vop_ops *mnt_vn_use_ops; /* current ops set */ | |
245 | ||
246 | struct vop_ops *mnt_vn_coherency_ops; /* cache coherency ops */ | |
247 | struct vop_ops *mnt_vn_journal_ops; /* journaling ops */ | |
248 | struct vop_ops *mnt_vn_norm_ops; /* for use by the VFS */ | |
0961aa92 MD |
249 | struct vop_ops *mnt_vn_spec_ops; /* for use by the VFS */ |
250 | struct vop_ops *mnt_vn_fifo_ops; /* for use by the VFS */ | |
28623bf9 MD |
251 | struct nchandle mnt_ncmountpt; /* mount point */ |
252 | struct nchandle mnt_ncmounton; /* mounted on */ | |
ad9dbf42 AHJ |
253 | char mnt_pad[16]; /* (try to cache-align refs) */ |
254 | struct ucred *mnt_cred; /* for cr_prison */ | |
28623bf9 | 255 | int mnt_refs; /* nchandle references */ |
9629eb35 | 256 | int mnt_hold; /* prevent kfree */ |
aac0aabd | 257 | struct lwkt_token mnt_token; /* token lock if not MPSAFE */ |
2281065e | 258 | struct journallst mnt_jlist; /* list of active journals */ |
797e4fe9 MD |
259 | u_int8_t *mnt_jbitmap; /* streamid bitmap */ |
260 | int16_t mnt_streamid; /* last streamid */ | |
408357d8 MD |
261 | |
262 | struct bio_ops *mnt_bioops; /* BIO ops (hammer, softupd) */ | |
ad121268 | 263 | struct lock mnt_renlock; /* rename directory lock */ |
95bf5f78 FT |
264 | |
265 | struct vfs_acct mnt_acct; /* vfs space accounting */ | |
ae4bce3c | 266 | RB_ENTRY(mount) mnt_node; /* mnt_stat.f_fsid */ |
984263bc | 267 | }; |
2281065e | 268 | |
ec12abe0 | 269 | #endif /* _KERNEL || _KERNEL_STRUCTURES */ |
984263bc MD |
270 | |
271 | /* | |
272 | * User specifiable flags. | |
273 | */ | |
274 | #define MNT_RDONLY 0x00000001 /* read only filesystem */ | |
275 | #define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */ | |
276 | #define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */ | |
277 | #define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */ | |
278 | #define MNT_NODEV 0x00000010 /* don't interpret special files */ | |
e2950f41 | 279 | #define MNT_AUTOMOUNTED 0x00000020 /* mounted by automountd(8) */ |
984263bc MD |
280 | #define MNT_ASYNC 0x00000040 /* file system written asynchronously */ |
281 | #define MNT_SUIDDIR 0x00100000 /* special handling of SUID on dirs */ | |
282 | #define MNT_SOFTDEP 0x00200000 /* soft updates being done */ | |
283 | #define MNT_NOSYMFOLLOW 0x00400000 /* do not follow symlinks */ | |
e0fb398b | 284 | #define MNT_TRIM 0x01000000 /* Enable online FS trimming */ |
984263bc MD |
285 | #define MNT_NOATIME 0x10000000 /* disable update of file access time */ |
286 | #define MNT_NOCLUSTERR 0x40000000 /* disable cluster read */ | |
287 | #define MNT_NOCLUSTERW 0x80000000 /* disable cluster write */ | |
288 | ||
289 | /* | |
290 | * NFS export related mount flags. | |
291 | */ | |
292 | #define MNT_EXRDONLY 0x00000080 /* exported read only */ | |
293 | #define MNT_EXPORTED 0x00000100 /* file system is exported */ | |
294 | #define MNT_DEFEXPORTED 0x00000200 /* exported to the world */ | |
295 | #define MNT_EXPORTANON 0x00000400 /* use anon uid mapping for everyone */ | |
296 | #define MNT_EXKERB 0x00000800 /* exported with Kerberos uid mapping */ | |
297 | #define MNT_EXPUBLIC 0x20000000 /* public export (WebNFS) */ | |
298 | ||
299 | /* | |
300 | * Flags set by internal operations, | |
301 | * but visible to the user. | |
302 | * XXX some of these are not quite right.. (I've never seen the root flag set) | |
303 | */ | |
304 | #define MNT_LOCAL 0x00001000 /* filesystem is stored locally */ | |
305 | #define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */ | |
306 | #define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */ | |
307 | #define MNT_USER 0x00008000 /* mounted by a user */ | |
308 | #define MNT_IGNORE 0x00800000 /* do not show entry in df */ | |
309 | ||
310 | /* | |
311 | * Mask of flags that are visible to statfs() | |
312 | * XXX I think that this could now become (~(MNT_CMDFLAGS)) | |
313 | * but the 'mount' program may need changing to handle this. | |
314 | */ | |
315 | #define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \ | |
55358b98 | 316 | MNT_NOSUID | MNT_NODEV | \ |
984263bc MD |
317 | MNT_ASYNC | MNT_EXRDONLY | MNT_EXPORTED | \ |
318 | MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB | \ | |
319 | MNT_LOCAL | MNT_USER | MNT_QUOTA | \ | |
320 | MNT_ROOTFS | MNT_NOATIME | MNT_NOCLUSTERR| \ | |
321 | MNT_NOCLUSTERW | MNT_SUIDDIR | MNT_SOFTDEP | \ | |
a3dce641 | 322 | MNT_IGNORE | MNT_NOSYMFOLLOW | MNT_EXPUBLIC| \ |
e2950f41 | 323 | MNT_TRIM | MNT_AUTOMOUNTED) |
984263bc MD |
324 | /* |
325 | * External filesystem command modifier flags. | |
326 | * Unmount can use the MNT_FORCE flag. | |
327 | * XXX These are not STATES and really should be somewhere else. | |
328 | */ | |
329 | #define MNT_UPDATE 0x00010000 /* not a real mount, just an update */ | |
330 | #define MNT_DELEXPORT 0x00020000 /* delete export host lists */ | |
331 | #define MNT_RELOAD 0x00040000 /* reload filesystem data */ | |
332 | #define MNT_FORCE 0x00080000 /* force unmount or readonly change */ | |
333 | #define MNT_CMDFLAGS (MNT_UPDATE|MNT_DELEXPORT|MNT_RELOAD|MNT_FORCE) | |
334 | /* | |
335 | * Internal filesystem control flags stored in mnt_kern_flag. | |
336 | * | |
337 | * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed | |
338 | * past the mount point. This keeps the subtree stable during mounts | |
339 | * and unmounts. | |
340 | * | |
341 | * MNTK_UNMOUNTF permits filesystems to detect a forced unmount while | |
342 | * dounmount() is still waiting to lock the mountpoint. This allows | |
343 | * the filesystem to cancel operations that might otherwise deadlock | |
344 | * with the unmount attempt (used by NFS). | |
5dc91765 MD |
345 | * |
346 | * MNTK_NOSTKMNT prevents mounting another filesystem inside the flagged one. | |
984263bc MD |
347 | */ |
348 | #define MNTK_UNMOUNTF 0x00000001 /* forced unmount in progress */ | |
51a529db | 349 | #define MNTK_QUICKHALT 0x00008000 /* quick unmount on halt */ |
aac0aabd | 350 | #define MNTK_MPSAFE 0x00010000 /* call vops without mnt_token lock */ |
2247fe02 MD |
351 | #define MNTK_RD_MPSAFE 0x00020000 /* vop_read is MPSAFE */ |
352 | #define MNTK_WR_MPSAFE 0x00040000 /* vop_write is MPSAFE */ | |
353 | #define MNTK_GA_MPSAFE 0x00080000 /* vop_getattr is MPSAFE */ | |
354 | #define MNTK_IN_MPSAFE 0x00100000 /* vop_inactive is MPSAFE */ | |
7a2de9a4 | 355 | #define MNTK_SG_MPSAFE 0x00200000 /* vop_strategy is MPSAFE */ |
28623bf9 | 356 | #define MNTK_NCALIASED 0x00800000 /* namecached aliased */ |
984263bc MD |
357 | #define MNTK_UNMOUNT 0x01000000 /* unmount in progress */ |
358 | #define MNTK_MWAIT 0x02000000 /* waiting for unmount to finish */ | |
359 | #define MNTK_WANTRDWR 0x04000000 /* upgrade to read/write requested */ | |
5dc91765 | 360 | #define MNTK_NOSTKMNT 0x10000000 /* no stacked mount point allowed */ |
2bc7505b | 361 | #define MNTK_NOMSYNC 0x20000000 /* used by tmpfs */ |
50e4012a | 362 | #define MNTK_THR_SYNC 0x40000000 /* fs sync thread requested */ |
0a5fa2b3 | 363 | #define MNTK_ST_MPSAFE 0x80000000 /* (mfs) vfs_start is MPSAFE */ |
984263bc | 364 | |
8801b30b | 365 | #define MNTK_ALL_MPSAFE (MNTK_MPSAFE | MNTK_RD_MPSAFE | MNTK_WR_MPSAFE | \ |
0a5fa2b3 VS |
366 | MNTK_GA_MPSAFE | MNTK_IN_MPSAFE | MNTK_SG_MPSAFE | \ |
367 | MNTK_ST_MPSAFE) | |
8801b30b | 368 | |
861905fb MD |
369 | /* |
370 | * mountlist_*() defines | |
371 | */ | |
372 | #define MNTSCAN_FORWARD 0x0001 | |
373 | #define MNTSCAN_REVERSE 0x0002 | |
374 | #define MNTSCAN_NOBUSY 0x0004 | |
00369c4a | 375 | #define MNTSCAN_NOUNLOCK 0x0008 |
861905fb MD |
376 | |
377 | #define MNTINS_FIRST 0x0001 | |
378 | #define MNTINS_LAST 0x0002 | |
379 | ||
984263bc MD |
380 | /* |
381 | * Sysctl CTL_VFS definitions. | |
382 | * | |
383 | * Second level identifier specifies which filesystem. Second level | |
384 | * identifier VFS_VFSCONF returns information about all filesystems. | |
385 | * Second level identifier VFS_GENERIC is non-terminal. | |
386 | */ | |
387 | #define VFS_VFSCONF 0 /* get configured filesystems */ | |
388 | #define VFS_GENERIC 0 /* generic filesystem information */ | |
389 | /* | |
390 | * Third level identifiers for VFS_GENERIC are given below; third | |
391 | * level identifiers for specific filesystems are given in their | |
392 | * mount specific header files. | |
393 | */ | |
394 | #define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */ | |
395 | #define VFS_CONF 2 /* struct: vfsconf for filesystem given | |
396 | as next argument */ | |
397 | ||
2247fe02 MD |
398 | /* |
399 | * VFS MPLOCK helper. | |
465e0608 MD |
400 | * |
401 | * We have to cache the supplied mp because in certain situations | |
402 | * the related vnode might go away across the use case (vop_strategy()). | |
2247fe02 | 403 | */ |
465e0608 | 404 | #define VFS_MPLOCK_DECLARE struct mount *xlock_mp |
2247fe02 | 405 | |
371cb095 | 406 | #define VFS_MPLOCK(mp) VFS_MPLOCK_FLAG(mp, MNTK_MPSAFE) |
2247fe02 | 407 | |
2247fe02 MD |
408 | #define VFS_MPLOCK_FLAG(mp, flag) \ |
409 | do { \ | |
410 | if (mp->mnt_kern_flag & flag) { \ | |
465e0608 | 411 | xlock_mp = NULL; \ |
2247fe02 | 412 | } else { \ |
465e0608 | 413 | xlock_mp = (mp); \ |
2247fe02 | 414 | get_mplock(); /* TEMPORARY */ \ |
465e0608 | 415 | lwkt_gettoken(&xlock_mp->mnt_token); \ |
2247fe02 MD |
416 | } \ |
417 | } while(0) | |
418 | ||
465e0608 | 419 | #define VFS_MPUNLOCK() \ |
2247fe02 | 420 | do { \ |
465e0608 MD |
421 | if (xlock_mp) { \ |
422 | lwkt_reltoken(&xlock_mp->mnt_token); \ | |
2247fe02 MD |
423 | rel_mplock(); /* TEMPORARY */ \ |
424 | } \ | |
425 | } while(0) | |
426 | ||
984263bc MD |
427 | /* |
428 | * Flags for various system call interfaces. | |
429 | * | |
430 | * waitfor flags to vfs_sync() and getfsstat() | |
431 | */ | |
28271622 MD |
432 | #define MNT_WAIT 0x0001 /* synchronously wait for I/O to complete */ |
433 | #define MNT_NOWAIT 0x0002 /* start all I/O, but do not wait for it */ | |
434 | #define MNT_LAZY 0x0004 /* be lazy and do not necessarily push it all */ | |
984263bc | 435 | |
52174f71 MD |
436 | #define VOP_FSYNC_SYSCALL 0x0001 /* from system call */ |
437 | ||
984263bc MD |
438 | /* |
439 | * Generic file handle | |
440 | */ | |
441 | struct fhandle { | |
442 | fsid_t fh_fsid; /* File system id of mount point */ | |
443 | struct fid fh_fid; /* File sys specific id */ | |
444 | }; | |
445 | typedef struct fhandle fhandle_t; | |
446 | ||
447 | /* | |
448 | * Export arguments for local filesystem mount calls. | |
449 | */ | |
450 | struct export_args { | |
451 | int ex_flags; /* export related flags */ | |
452 | uid_t ex_root; /* mapping for root uid */ | |
453 | struct ucred ex_anon; /* mapping for anonymous user */ | |
454 | struct sockaddr *ex_addr; /* net address to which exported */ | |
455 | int ex_addrlen; /* and the net address length */ | |
456 | struct sockaddr *ex_mask; /* mask of valid bits in saddr */ | |
457 | int ex_masklen; /* and the smask length */ | |
458 | char *ex_indexfile; /* index file for WebNFS URLs */ | |
459 | }; | |
460 | ||
461 | /* | |
462 | * Structure holding information for a publicly exported filesystem | |
463 | * (WebNFS). Currently the specs allow just for one such filesystem. | |
464 | */ | |
465 | struct nfs_public { | |
466 | int np_valid; /* Do we hold valid information */ | |
467 | fhandle_t np_handle; /* Filehandle for pub fs (internal) */ | |
468 | struct mount *np_mount; /* Mountpoint of exported fs */ | |
469 | char *np_index; /* Index file */ | |
470 | }; | |
471 | ||
472 | /* | |
473 | * Filesystem configuration information. One of these exists for each | |
474 | * type of filesystem supported by the kernel. These are searched at | |
475 | * mount time to identify the requested filesystem. | |
476 | */ | |
477 | struct vfsconf { | |
478 | struct vfsops *vfc_vfsops; /* filesystem operations vector */ | |
479 | char vfc_name[MFSNAMELEN]; /* filesystem type name */ | |
480 | int vfc_typenum; /* historic filesystem type number */ | |
481 | int vfc_refcount; /* number mounted of this type */ | |
482 | int vfc_flags; /* permanent flags */ | |
2613053d | 483 | STAILQ_ENTRY(vfsconf) vfc_next; /* next in list */ |
984263bc MD |
484 | }; |
485 | ||
486 | struct ovfsconf { | |
487 | void *vfc_vfsops; | |
488 | char vfc_name[32]; | |
489 | int vfc_index; | |
490 | int vfc_refcount; | |
491 | int vfc_flags; | |
492 | }; | |
493 | ||
494 | /* | |
495 | * NB: these flags refer to IMPLEMENTATION properties, not properties of | |
496 | * any actual mounts; i.e., it does not make sense to change the flags. | |
497 | */ | |
498 | #define VFCF_STATIC 0x00010000 /* statically compiled into kernel */ | |
499 | #define VFCF_NETWORK 0x00020000 /* may get data over the network */ | |
500 | #define VFCF_READONLY 0x00040000 /* writes are not implemented */ | |
501 | #define VFCF_SYNTHETIC 0x00080000 /* data does not represent real files */ | |
502 | #define VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */ | |
503 | #define VFCF_UNICODE 0x00200000 /* stores file names as Unicode*/ | |
87f62b1c | 504 | #define VFCF_MPSAFE 0x00400000 /* VFS is fully MPSAFE */ |
984263bc | 505 | |
5e25370d TK |
506 | /* vfsquery flags */ |
507 | #define VQ_NOTRESP 0x0001 /* server down */ | |
508 | #define VQ_NEEDAUTH 0x0002 /* server bad auth */ | |
509 | #define VQ_LOWDISK 0x0004 /* we're low on space */ | |
510 | #define VQ_MOUNT 0x0008 /* new filesystem arrived */ | |
511 | #define VQ_UNMOUNT 0x0010 /* filesystem has left */ | |
512 | #define VQ_DEAD 0x0020 /* filesystem is dead, needs force unmount */ | |
513 | #define VQ_ASSIST 0x0040 /* filesystem needs assistance from external | |
514 | program */ | |
515 | #define VQ_NOTRESPLOCK 0x0080 /* server lockd down */ | |
516 | #define VQ_FLAG0100 0x0100 /* placeholder */ | |
517 | #define VQ_FLAG0200 0x0200 /* placeholder */ | |
518 | #define VQ_FLAG0400 0x0400 /* placeholder */ | |
519 | #define VQ_FLAG0800 0x0800 /* placeholder */ | |
520 | #define VQ_FLAG1000 0x1000 /* placeholder */ | |
521 | #define VQ_FLAG2000 0x2000 /* placeholder */ | |
522 | #define VQ_FLAG4000 0x4000 /* placeholder */ | |
523 | #define VQ_FLAG8000 0x8000 /* placeholder */ | |
524 | ||
984263bc MD |
525 | #ifdef _KERNEL |
526 | ||
527 | #ifdef MALLOC_DECLARE | |
528 | MALLOC_DECLARE(M_MOUNT); | |
529 | #endif | |
984263bc | 530 | extern int nfs_mount_type; /* vfc_typenum for nfs, or -1 */ |
2613053d MN |
531 | |
532 | struct vfsconf *vfsconf_find_by_name(const char *); | |
533 | struct vfsconf *vfsconf_find_by_typenum(int); | |
534 | int vfsconf_get_maxtypenum(void); | |
535 | int vfsconf_each(int (*)(struct vfsconf *, void *), void *); | |
984263bc | 536 | |
ec12abe0 MD |
537 | #endif |
538 | ||
539 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) | |
540 | ||
541 | TAILQ_HEAD(mntlist, mount); /* struct mntlist */ | |
542 | ||
984263bc MD |
543 | /* |
544 | * Operations supported on mounted file system. | |
545 | */ | |
21739618 | 546 | struct nlookupdata; |
984263bc | 547 | struct mbuf; |
984263bc | 548 | |
43c45e8f | 549 | typedef int vfs_mount_t(struct mount *mp, char *path, caddr_t data, |
acde96db MD |
550 | struct ucred *cred); |
551 | typedef int vfs_start_t(struct mount *mp, int flags); | |
552 | typedef int vfs_unmount_t(struct mount *mp, int mntflags); | |
43c45e8f HP |
553 | typedef int vfs_root_t(struct mount *mp, struct vnode **vpp); |
554 | typedef int vfs_quotactl_t(struct mount *mp, int cmds, uid_t uid, caddr_t arg, | |
acde96db | 555 | struct ucred *cred); |
43c45e8f | 556 | typedef int vfs_statfs_t(struct mount *mp, struct statfs *sbp, |
acde96db | 557 | struct ucred *cred); |
d9fad06e MD |
558 | typedef int vfs_statvfs_t(struct mount *mp, struct statvfs *sbp, |
559 | struct ucred *cred); | |
87de5057 | 560 | typedef int vfs_sync_t(struct mount *mp, int waitfor); |
b9b0a6d0 MD |
561 | typedef int vfs_vget_t(struct mount *mp, struct vnode *dvp, |
562 | ino_t ino, struct vnode **vpp); | |
67863d04 MD |
563 | typedef int vfs_fhtovp_t(struct mount *mp, struct vnode *rootvp, |
564 | struct fid *fhp, struct vnode **vpp); | |
43c45e8f | 565 | typedef int vfs_checkexp_t(struct mount *mp, struct sockaddr *nam, |
b153f746 | 566 | int *extflagsp, struct ucred **credanonp); |
43c45e8f HP |
567 | typedef int vfs_vptofh_t(struct vnode *vp, struct fid *fhp); |
568 | typedef int vfs_init_t(struct vfsconf *); | |
569 | typedef int vfs_uninit_t(struct vfsconf *); | |
0f6997f9 MD |
570 | typedef int vfs_extattrctl_t(struct mount *mp, int cmd, struct vnode *vp, |
571 | int attrnamespace, const char *attrname, | |
572 | struct ucred *cred); | |
e788edda | 573 | typedef int vfs_acinit_t(struct mount *mp); |
75a5a592 | 574 | typedef void vfs_acdone_t(struct mount *mp); |
95bf5f78 | 575 | typedef void vfs_account_t(struct mount *mp, |
1c18cfd0 | 576 | uid_t uid, gid_t gid, int64_t delta); |
75779c3c AH |
577 | typedef void vfs_ncpgen_set_t(struct mount *mp, struct namecache *ncp); |
578 | typedef int vfs_ncpgen_test_t(struct mount *mp, struct namecache *ncp); | |
d0e99d5d | 579 | typedef int vfs_modifying_t(struct mount *mp); |
43c45e8f | 580 | |
aac0aabd MD |
581 | int vfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred); |
582 | int vfs_start(struct mount *mp, int flags); | |
583 | int vfs_unmount(struct mount *mp, int mntflags); | |
584 | int vfs_root(struct mount *mp, struct vnode **vpp); | |
585 | int vfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, | |
586 | struct ucred *cred); | |
587 | int vfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred); | |
588 | int vfs_statvfs(struct mount *mp, struct statvfs *sbp, struct ucred *cred); | |
589 | int vfs_sync(struct mount *mp, int waitfor); | |
590 | int vfs_vget(struct mount *mp, struct vnode *dvp, | |
591 | ino_t ino, struct vnode **vpp); | |
592 | int vfs_fhtovp(struct mount *mp, struct vnode *rootvp, | |
593 | struct fid *fhp, struct vnode **vpp); | |
594 | int vfs_checkexp(struct mount *mp, struct sockaddr *nam, | |
595 | int *extflagsp, struct ucred **credanonp); | |
596 | int vfs_vptofh(struct vnode *vp, struct fid *fhp); | |
597 | int vfs_init(struct vfsconf *vfc); | |
598 | int vfs_uninit(struct vfsconf *vfc, struct vfsconf *vfsp); | |
0f6997f9 MD |
599 | int vfs_extattrctl(struct mount *mp, int cmd, struct vnode *vp, |
600 | int attrnamespace, const char *attrname, | |
601 | struct ucred *cred); | |
1c222faf | 602 | int vfs_modifying(struct mount *mp); |
aac0aabd | 603 | |
43c45e8f | 604 | struct vfsops { |
00369c4a | 605 | long vfs_flags; |
43c45e8f HP |
606 | vfs_mount_t *vfs_mount; |
607 | vfs_start_t *vfs_start; | |
608 | vfs_unmount_t *vfs_unmount; | |
609 | vfs_root_t *vfs_root; | |
610 | vfs_quotactl_t *vfs_quotactl; | |
611 | vfs_statfs_t *vfs_statfs; | |
612 | vfs_sync_t *vfs_sync; | |
613 | vfs_vget_t *vfs_vget; | |
614 | vfs_fhtovp_t *vfs_fhtovp; | |
615 | vfs_checkexp_t *vfs_checkexp; | |
616 | vfs_vptofh_t *vfs_vptofh; | |
617 | vfs_init_t *vfs_init; | |
618 | vfs_uninit_t *vfs_uninit; | |
d9fad06e MD |
619 | vfs_extattrctl_t *vfs_extattrctl; |
620 | vfs_statvfs_t *vfs_statvfs; | |
e788edda FT |
621 | vfs_acinit_t *vfs_acinit; |
622 | vfs_acdone_t *vfs_acdone; | |
1c18cfd0 | 623 | vfs_account_t *vfs_account; |
75779c3c AH |
624 | vfs_ncpgen_set_t *vfs_ncpgen_set; |
625 | vfs_ncpgen_test_t *vfs_ncpgen_test; | |
1c222faf | 626 | vfs_modifying_t *vfs_modifying; |
984263bc MD |
627 | }; |
628 | ||
00369c4a MD |
629 | #define VFSOPSF_NOSYNCERTHR 0x00000001 |
630 | ||
aac0aabd MD |
631 | #define VFS_MOUNT(MP, PATH, DATA, CRED) \ |
632 | vfs_mount(MP, PATH, DATA, CRED) | |
633 | #define VFS_START(MP, FLAGS) \ | |
634 | vfs_start(MP, FLAGS) | |
635 | #define VFS_UNMOUNT(MP, FORCE) \ | |
636 | vfs_unmount(MP, FORCE) | |
637 | #define VFS_ROOT(MP, VPP) \ | |
638 | vfs_root(MP, VPP) | |
639 | #define VFS_QUOTACTL(MP, C, U, A, CRED) \ | |
640 | vfs_quotactl(MP, C, U, A, CRED) | |
641 | #define VFS_STATFS(MP, SBP, CRED) \ | |
642 | vfs_statfs(MP, SBP, CRED) | |
643 | #define VFS_STATVFS(MP, SBP, CRED) \ | |
644 | vfs_statvfs(MP, SBP, CRED) | |
645 | #define VFS_SYNC(MP, WAIT) \ | |
646 | vfs_sync(MP, WAIT) | |
647 | #define VFS_VGET(MP, DVP, INO, VPP) \ | |
648 | vfs_vget(MP, DVP, INO, VPP) | |
67863d04 | 649 | #define VFS_FHTOVP(MP, ROOTVP, FIDP, VPP) \ |
aac0aabd MD |
650 | vfs_fhtovp(MP, ROOTVP, FIDP, VPP) |
651 | #define VFS_VPTOFH(VP, FIDP) \ | |
652 | vfs_vptofh(VP, FIDP) | |
653 | #define VFS_CHECKEXP(MP, NAM, EXFLG, CRED) \ | |
654 | vfs_checkexp(MP, NAM, EXFLG, CRED) | |
0f6997f9 MD |
655 | #define VFS_EXTATTRCTL(MP, C, FVP, NS, N, CRED) \ |
656 | vfs_extattrctl(MP, C, FVP, NS, N, CRED) | |
82318d45 | 657 | #define VFS_ACCOUNT(MP, U, G, D) \ |
d4eea8cb | 658 | if ((MP->mnt_op->vfs_account != NULL) && (D != 0)) \ |
82318d45 | 659 | MP->mnt_op->vfs_account(MP, U, G, D); |
75a5a592 | 660 | #define VFS_ACINIT(MP, ERROR) \ |
59a9a88c | 661 | if (vfs_quota_enabled && MP->mnt_op->vfs_acinit != NULL) \ |
75a5a592 FT |
662 | ERROR = MP->mnt_op->vfs_acinit(MP); |
663 | #define VFS_ACDONE(MP) \ | |
59a9a88c | 664 | if (vfs_quota_enabled && MP->mnt_op->vfs_acdone != NULL) \ |
75a5a592 | 665 | MP->mnt_op->vfs_acdone(MP); |
75779c3c AH |
666 | #define VFS_NCPGEN_SET(MP, NCP) \ |
667 | MP->mnt_op->vfs_ncpgen_set(MP, NCP) | |
668 | #define VFS_NCPGEN_TEST(MP, NCP) \ | |
669 | MP->mnt_op->vfs_ncpgen_test(MP, NCP) | |
1c222faf MD |
670 | #define VFS_MODIFYING(MP) \ |
671 | MP->mnt_op->vfs_modifying(MP) | |
984263bc | 672 | |
ec12abe0 MD |
673 | #endif |
674 | ||
675 | #ifdef _KERNEL | |
676 | ||
984263bc MD |
677 | #include <sys/module.h> |
678 | ||
679 | #define VFS_SET(vfsops, fsname, flags) \ | |
680 | static struct vfsconf fsname ## _vfsconf = { \ | |
681 | &vfsops, \ | |
682 | #fsname, \ | |
683 | -1, \ | |
684 | 0, \ | |
58661e79 | 685 | flags, \ |
37c1c8fc | 686 | { NULL }, \ |
984263bc MD |
687 | }; \ |
688 | static moduledata_t fsname ## _mod = { \ | |
689 | #fsname, \ | |
690 | vfs_modevent, \ | |
691 | & fsname ## _vfsconf \ | |
692 | }; \ | |
693 | DECLARE_MODULE(fsname, fsname ## _mod, SI_SUB_VFS, SI_ORDER_MIDDLE) | |
694 | ||
ec12abe0 MD |
695 | #endif |
696 | ||
697 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) | |
698 | ||
984263bc MD |
699 | #include <net/radix.h> |
700 | ||
984263bc MD |
701 | /* |
702 | * Network address lookup element | |
703 | */ | |
704 | struct netcred { | |
705 | struct radix_node netc_rnodes[2]; | |
706 | int netc_exflags; | |
707 | struct ucred netc_anon; | |
708 | }; | |
709 | ||
710 | /* | |
711 | * Network export information | |
712 | */ | |
713 | struct netexport { | |
794500d0 NA |
714 | struct netcred ne_defexported; /* Default export */ |
715 | struct radix_node_head *ne_inethead; /* IPv4 radix */ | |
716 | struct radix_node_head *ne_inet6head; /* IPv6 radix */ | |
717 | struct radix_node_head *ne_maskhead; /* Shared mask radix */ | |
984263bc | 718 | }; |
f9ecb661 MD |
719 | #define NE_LOCK(nep) lwkt_getpooltoken(nep) |
720 | #define NE_UNLOCK(nep) lwkt_relpooltoken(nep) | |
721 | #define NE_ASSERT_LOCKED(nep) \ | |
722 | ASSERT_LWKT_TOKEN_HELD(lwkt_token_pool_lookup(nep)) | |
984263bc | 723 | |
ec12abe0 MD |
724 | #endif |
725 | ||
726 | #ifdef _KERNEL | |
984263bc MD |
727 | /* |
728 | * exported vnode operations | |
729 | */ | |
9629eb35 MD |
730 | void mount_hold(struct mount *); |
731 | void mount_drop(struct mount *); | |
51a529db | 732 | int dounmount (struct mount *, int, int); |
984263bc | 733 | int vfs_setpublicfs /* set publicly exported fs */ |
1aa89f17 | 734 | (struct mount *, struct netexport *, const struct export_args *); |
b153f746 RG |
735 | int vfs_lock (struct mount *); /* lock a vfs */ |
736 | void vfs_msync (struct mount *, int); | |
737 | void vfs_unlock (struct mount *); /* unlock a vfs */ | |
f9642f56 | 738 | int vfs_busy (struct mount *, int); |
984263bc | 739 | int vfs_export /* process mount export info */ |
1aa89f17 | 740 | (struct mount *, struct netexport *, const struct export_args *); |
984263bc | 741 | struct netcred *vfs_export_lookup /* lookup host in fs export list */ |
b153f746 RG |
742 | (struct mount *, struct netexport *, struct sockaddr *); |
743 | int vfs_allocate_syncvnode (struct mount *); | |
744 | void vfs_getnewfsid (struct mount *); | |
ae4bce3c | 745 | void vfs_setfsid(struct mount *mp, fsid_t *template); |
b13267a5 | 746 | cdev_t vfs_getrootfsid (struct mount *); |
b153f746 RG |
747 | struct mount *vfs_getvfs (fsid_t *); /* return vfs given fsid */ |
748 | int vfs_modevent (module_t, int, void *); | |
749 | int vfs_mountedon (struct vnode *); /* is a vfs mounted on vp */ | |
750 | int vfs_rootmountalloc (char *, char *, struct mount **); | |
f9642f56 | 751 | void vfs_unbusy (struct mount *); |
51a529db | 752 | void vfs_unmountall (int halting); |
b153f746 RG |
753 | int vfs_register (struct vfsconf *); |
754 | int vfs_unregister (struct vfsconf *); | |
984263bc MD |
755 | extern struct nfs_public nfs_pub; |
756 | ||
757 | /* | |
758 | * Declarations for these vfs default operations are located in | |
759 | * kern/vfs_default.c, they should be used instead of making "dummy" | |
760 | * functions or casting entries in the VFS op table to "enopnotsupp()". | |
761 | */ | |
43c45e8f | 762 | vfs_start_t vfs_stdstart; |
43c45e8f HP |
763 | vfs_root_t vfs_stdroot; |
764 | vfs_quotactl_t vfs_stdquotactl; | |
765 | vfs_statfs_t vfs_stdstatfs; | |
d9fad06e | 766 | vfs_statvfs_t vfs_stdstatvfs; |
43c45e8f HP |
767 | vfs_sync_t vfs_stdsync; |
768 | vfs_sync_t vfs_stdnosync; | |
769 | vfs_vget_t vfs_stdvget; | |
770 | vfs_fhtovp_t vfs_stdfhtovp; | |
771 | vfs_checkexp_t vfs_stdcheckexp; | |
772 | vfs_vptofh_t vfs_stdvptofh; | |
773 | vfs_init_t vfs_stdinit; | |
774 | vfs_uninit_t vfs_stduninit; | |
acde96db | 775 | vfs_extattrctl_t vfs_stdextattrctl; |
e788edda FT |
776 | vfs_acinit_t vfs_stdac_init; |
777 | vfs_acdone_t vfs_stdac_done; | |
1c18cfd0 | 778 | vfs_account_t vfs_stdaccount; |
e788edda | 779 | vfs_account_t vfs_noaccount; |
75779c3c AH |
780 | vfs_ncpgen_set_t vfs_stdncpgen_set; |
781 | vfs_ncpgen_test_t vfs_stdncpgen_test; | |
1c222faf | 782 | vfs_modifying_t vfs_stdmodifying; |
43c45e8f | 783 | |
9340415c MD |
784 | struct vop_access_args; |
785 | int vop_helper_access(struct vop_access_args *ap, uid_t ino_uid, gid_t ino_gid, | |
fb356552 | 786 | mode_t ino_mode, u_int32_t ino_flags); |
1399fa3b | 787 | int vop_helper_setattr_flags(u_int32_t *ino_flags, u_int32_t vaflags, |
fb356552 MD |
788 | uid_t uid, struct ucred *cred); |
789 | uid_t vop_helper_create_uid(struct mount *mp, mode_t dmode, uid_t duid, | |
790 | struct ucred *cred, mode_t *modep); | |
f7179e23 MD |
791 | int vop_helper_chmod(struct vnode *vp, mode_t new_mode, struct ucred *cred, |
792 | uid_t cur_uid, gid_t cur_gid, mode_t *cur_modep); | |
793 | int vop_helper_chown(struct vnode *vp, uid_t new_uid, gid_t new_gid, | |
794 | struct ucred *cred, | |
795 | uid_t *cur_uidp, gid_t *cur_gidp, mode_t *cur_modep); | |
68ad1455 | 796 | int vop_helper_read_shortcut(struct vop_read_args *ap); |
1399fa3b | 797 | |
408357d8 MD |
798 | void add_bio_ops(struct bio_ops *ops); |
799 | void rem_bio_ops(struct bio_ops *ops); | |
9340415c | 800 | |
2281065e | 801 | int journal_mountctl(struct vop_mountctl_args *ap); |
432b8263 MD |
802 | void journal_remove_all_journals(struct mount *mp, int flags); |
803 | ||
861905fb MD |
804 | void mountlist_insert(struct mount *, int); |
805 | int mountlist_interlock(int (*callback)(struct mount *), struct mount *); | |
806 | struct mount *mountlist_boot_getfirst(void); | |
807 | void mountlist_remove(struct mount *mp); | |
cf7ad7d1 | 808 | int mountlist_exists(struct mount *mp); |
861905fb | 809 | int mountlist_scan(int (*callback)(struct mount *, void *), void *, int); |
5b4cfb7e | 810 | struct mount *mount_get_by_nc(struct namecache *ncp); |
984263bc MD |
811 | #else /* !_KERNEL */ |
812 | ||
984263bc | 813 | __BEGIN_DECLS |
b153f746 RG |
814 | int fstatfs (int, struct statfs *); |
815 | int getfh (const char *, fhandle_t *); | |
816 | int getfsstat (struct statfs *, long, int); | |
817 | int getmntinfo (struct statfs **, int); | |
0e735c8f | 818 | int getmntvinfo (struct statfs **, struct statvfs **, int); |
b153f746 RG |
819 | int mount (const char *, const char *, int, void *); |
820 | int statfs (const char *, struct statfs *); | |
821 | int unmount (const char *, int); | |
822 | int fhopen (const struct fhandle *, int); | |
823 | int fhstat (const struct fhandle *, struct stat *); | |
824 | int fhstatfs (const struct fhandle *, struct statfs *); | |
984263bc MD |
825 | |
826 | /* C library stuff */ | |
b153f746 RG |
827 | void endvfsent (void); |
828 | struct ovfsconf *getvfsbyname (const char *); | |
829 | struct ovfsconf *getvfsbytype (int); | |
830 | struct ovfsconf *getvfsent (void); | |
984263bc | 831 | #define getvfsbyname new_getvfsbyname |
b153f746 RG |
832 | int new_getvfsbyname (const char *, struct vfsconf *); |
833 | void setvfsent (int); | |
834 | int vfsisloadable (const char *); | |
835 | int vfsload (const char *); | |
984263bc MD |
836 | __END_DECLS |
837 | ||
838 | #endif /* _KERNEL */ | |
839 | ||
840 | #endif /* !_SYS_MOUNT_H_ */ | |
ec12abe0 | 841 |