Commit | Line | Data |
---|---|---|
da7c5cc6 | 1 | /* |
fc2aed1e KM |
2 | * Copyright (c) 1989 The Regents of the University of California. |
3 | * All rights reserved. | |
da7c5cc6 | 4 | * |
dbf0c423 | 5 | * %sccs.include.redist.c% |
fc2aed1e | 6 | * |
8932276d | 7 | * @(#)vfs_syscalls.c 7.87 (Berkeley) %G% |
da7c5cc6 | 8 | */ |
6459ebe0 | 9 | |
94368568 JB |
10 | #include "param.h" |
11 | #include "systm.h" | |
8429d022 | 12 | #include "namei.h" |
5e00df3b | 13 | #include "filedesc.h" |
94368568 JB |
14 | #include "kernel.h" |
15 | #include "file.h" | |
16 | #include "stat.h" | |
fc2aed1e | 17 | #include "vnode.h" |
fc2aed1e | 18 | #include "mount.h" |
94368568 | 19 | #include "proc.h" |
94368568 | 20 | #include "uio.h" |
fc2aed1e | 21 | #include "malloc.h" |
be320a2b | 22 | #include <vm/vm.h> |
88a7a62a | 23 | |
a5368812 KM |
24 | #ifdef REF_DIAGNOSTIC |
25 | #define CURCOUNT (curproc ? curproc->p_spare[0] : 0) | |
26 | #define CHECKPOINTREF int oldrefcount = CURCOUNT; | |
27 | #define CHECKREFS(F) if (oldrefcount != CURCOUNT) \ | |
28 | printf("REFCOUNT: %s, old=%d, new=%d\n", (F), oldrefcount, CURCOUNT); | |
29 | #else | |
30 | #define CHECKPOINTREF | |
31 | #define CHECKREFS(D) | |
32 | #endif | |
33 | ||
fc2aed1e KM |
34 | /* |
35 | * Virtual File System System Calls | |
36 | */ | |
3e78e260 | 37 | |
4f083fd7 | 38 | /* |
d4ed1dcd | 39 | * Mount system call. |
4f083fd7 | 40 | */ |
6a6a1e5f KM |
41 | /* ARGSUSED */ |
42 | mount(p, uap, retval) | |
5e00df3b | 43 | struct proc *p; |
6a6a1e5f | 44 | register struct args { |
fc2aed1e KM |
45 | int type; |
46 | char *dir; | |
47 | int flags; | |
48 | caddr_t data; | |
6a6a1e5f KM |
49 | } *uap; |
50 | int *retval; | |
51 | { | |
9342689a | 52 | USES_VOP_UNLOCK; |
d48157d5 KM |
53 | register struct vnode *vp; |
54 | register struct mount *mp; | |
47971887 | 55 | int error, flag; |
8429d022 | 56 | struct nameidata nd; |
3e78e260 | 57 | |
fc2aed1e KM |
58 | /* |
59 | * Must be super user | |
60 | */ | |
8429d022 MK |
61 | if (error = suser(p->p_ucred, &p->p_acflag)) |
62 | return (error); | |
fc2aed1e KM |
63 | /* |
64 | * Get vnode to be covered | |
65 | */ | |
dd4c01c2 KM |
66 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->dir, p); |
67 | if (error = namei(&nd)) | |
8429d022 | 68 | return (error); |
dd4c01c2 | 69 | vp = nd.ni_vp; |
54fb9dc2 | 70 | if (uap->flags & MNT_UPDATE) { |
d48157d5 KM |
71 | if ((vp->v_flag & VROOT) == 0) { |
72 | vput(vp); | |
8429d022 | 73 | return (EINVAL); |
d48157d5 KM |
74 | } |
75 | mp = vp->v_mount; | |
76 | /* | |
77 | * We allow going from read-only to read-write, | |
78 | * but not from read-write to read-only. | |
79 | */ | |
54fb9dc2 KM |
80 | if ((mp->mnt_flag & MNT_RDONLY) == 0 && |
81 | (uap->flags & MNT_RDONLY) != 0) { | |
d48157d5 | 82 | vput(vp); |
8429d022 | 83 | return (EOPNOTSUPP); /* Needs translation */ |
d48157d5 | 84 | } |
54fb9dc2 KM |
85 | flag = mp->mnt_flag; |
86 | mp->mnt_flag |= MNT_UPDATE; | |
d48157d5 KM |
87 | VOP_UNLOCK(vp); |
88 | goto update; | |
89 | } | |
89cdb378 | 90 | vinvalbuf(vp, 1); |
8b81d198 | 91 | if (vp->v_usecount != 1) { |
fc2aed1e | 92 | vput(vp); |
8429d022 | 93 | return (EBUSY); |
fc2aed1e KM |
94 | } |
95 | if (vp->v_type != VDIR) { | |
96 | vput(vp); | |
8429d022 | 97 | return (ENOTDIR); |
fc2aed1e | 98 | } |
62d239e5 | 99 | if ((unsigned long)uap->type > MOUNT_MAXTYPE || |
fc2aed1e KM |
100 | vfssw[uap->type] == (struct vfsops *)0) { |
101 | vput(vp); | |
8429d022 | 102 | return (ENODEV); |
fc2aed1e KM |
103 | } |
104 | ||
105 | /* | |
d48157d5 | 106 | * Allocate and initialize the file system. |
fc2aed1e KM |
107 | */ |
108 | mp = (struct mount *)malloc((u_long)sizeof(struct mount), | |
109 | M_MOUNT, M_WAITOK); | |
b1341251 | 110 | bzero((char *)mp, (u_long)sizeof(struct mount)); |
54fb9dc2 | 111 | mp->mnt_op = vfssw[uap->type]; |
d48157d5 KM |
112 | if (error = vfs_lock(mp)) { |
113 | free((caddr_t)mp, M_MOUNT); | |
114 | vput(vp); | |
8429d022 | 115 | return (error); |
d48157d5 KM |
116 | } |
117 | if (vp->v_mountedhere != (struct mount *)0) { | |
118 | vfs_unlock(mp); | |
119 | free((caddr_t)mp, M_MOUNT); | |
120 | vput(vp); | |
8429d022 | 121 | return (EBUSY); |
d48157d5 | 122 | } |
d48157d5 | 123 | vp->v_mountedhere = mp; |
54fb9dc2 | 124 | mp->mnt_vnodecovered = vp; |
d48157d5 KM |
125 | update: |
126 | /* | |
127 | * Set the mount level flags. | |
128 | */ | |
54fb9dc2 KM |
129 | if (uap->flags & MNT_RDONLY) |
130 | mp->mnt_flag |= MNT_RDONLY; | |
d48157d5 | 131 | else |
54fb9dc2 KM |
132 | mp->mnt_flag &= ~MNT_RDONLY; |
133 | if (uap->flags & MNT_NOSUID) | |
134 | mp->mnt_flag |= MNT_NOSUID; | |
d48157d5 | 135 | else |
54fb9dc2 KM |
136 | mp->mnt_flag &= ~MNT_NOSUID; |
137 | if (uap->flags & MNT_NOEXEC) | |
138 | mp->mnt_flag |= MNT_NOEXEC; | |
d48157d5 | 139 | else |
54fb9dc2 KM |
140 | mp->mnt_flag &= ~MNT_NOEXEC; |
141 | if (uap->flags & MNT_NODEV) | |
142 | mp->mnt_flag |= MNT_NODEV; | |
d48157d5 | 143 | else |
54fb9dc2 KM |
144 | mp->mnt_flag &= ~MNT_NODEV; |
145 | if (uap->flags & MNT_SYNCHRONOUS) | |
146 | mp->mnt_flag |= MNT_SYNCHRONOUS; | |
d48157d5 | 147 | else |
54fb9dc2 | 148 | mp->mnt_flag &= ~MNT_SYNCHRONOUS; |
d48157d5 KM |
149 | /* |
150 | * Mount the filesystem. | |
151 | */ | |
dd4c01c2 | 152 | error = VFS_MOUNT(mp, uap->dir, uap->data, &nd, p); |
54fb9dc2 KM |
153 | if (mp->mnt_flag & MNT_UPDATE) { |
154 | mp->mnt_flag &= ~MNT_UPDATE; | |
d48157d5 | 155 | vrele(vp); |
47971887 | 156 | if (error) |
54fb9dc2 | 157 | mp->mnt_flag = flag; |
8429d022 | 158 | return (error); |
d48157d5 | 159 | } |
92d0de98 KM |
160 | /* |
161 | * Put the new filesystem on the mount list after root. | |
162 | */ | |
54fb9dc2 KM |
163 | mp->mnt_next = rootfs->mnt_next; |
164 | mp->mnt_prev = rootfs; | |
165 | rootfs->mnt_next = mp; | |
166 | mp->mnt_next->mnt_prev = mp; | |
fc2aed1e | 167 | cache_purge(vp); |
fc2aed1e | 168 | if (!error) { |
d48157d5 | 169 | VOP_UNLOCK(vp); |
fc2aed1e | 170 | vfs_unlock(mp); |
2c69fe14 | 171 | error = VFS_START(mp, 0, p); |
fc2aed1e KM |
172 | } else { |
173 | vfs_remove(mp); | |
174 | free((caddr_t)mp, M_MOUNT); | |
d48157d5 | 175 | vput(vp); |
fc2aed1e | 176 | } |
8429d022 | 177 | return (error); |
3e78e260 BJ |
178 | } |
179 | ||
4f083fd7 | 180 | /* |
fc2aed1e KM |
181 | * Unmount system call. |
182 | * | |
183 | * Note: unmount takes a path to the vnode mounted on as argument, | |
184 | * not special file (as before). | |
4f083fd7 | 185 | */ |
6a6a1e5f KM |
186 | /* ARGSUSED */ |
187 | unmount(p, uap, retval) | |
5e00df3b | 188 | struct proc *p; |
6a6a1e5f | 189 | register struct args { |
fc2aed1e KM |
190 | char *pathp; |
191 | int flags; | |
6a6a1e5f KM |
192 | } *uap; |
193 | int *retval; | |
194 | { | |
fc2aed1e | 195 | register struct vnode *vp; |
9151110e | 196 | struct mount *mp; |
fc2aed1e | 197 | int error; |
8429d022 | 198 | struct nameidata nd; |
fc2aed1e KM |
199 | |
200 | /* | |
201 | * Must be super user | |
202 | */ | |
8429d022 MK |
203 | if (error = suser(p->p_ucred, &p->p_acflag)) |
204 | return (error); | |
fc2aed1e | 205 | |
dd4c01c2 KM |
206 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->pathp, p); |
207 | if (error = namei(&nd)) | |
8429d022 | 208 | return (error); |
dd4c01c2 | 209 | vp = nd.ni_vp; |
fc2aed1e KM |
210 | /* |
211 | * Must be the root of the filesystem | |
212 | */ | |
213 | if ((vp->v_flag & VROOT) == 0) { | |
214 | vput(vp); | |
8429d022 | 215 | return (EINVAL); |
fc2aed1e KM |
216 | } |
217 | mp = vp->v_mount; | |
218 | vput(vp); | |
2c69fe14 | 219 | return (dounmount(mp, uap->flags, p)); |
9151110e KM |
220 | } |
221 | ||
222 | /* | |
223 | * Do an unmount. | |
224 | */ | |
2c69fe14 | 225 | dounmount(mp, flags, p) |
9151110e KM |
226 | register struct mount *mp; |
227 | int flags; | |
2c69fe14 | 228 | struct proc *p; |
9151110e KM |
229 | { |
230 | struct vnode *coveredvp; | |
231 | int error; | |
232 | ||
54fb9dc2 | 233 | coveredvp = mp->mnt_vnodecovered; |
c001b1c3 KM |
234 | if (vfs_busy(mp)) |
235 | return (EBUSY); | |
54fb9dc2 | 236 | mp->mnt_flag |= MNT_UNMOUNT; |
fc2aed1e | 237 | if (error = vfs_lock(mp)) |
9151110e | 238 | return (error); |
fc2aed1e | 239 | |
9db58063 | 240 | vnode_pager_umount(mp); /* release cached vnodes */ |
fc2aed1e | 241 | cache_purgevfs(mp); /* remove cache entries for this file sys */ |
a99a44da | 242 | if ((error = VFS_SYNC(mp, MNT_WAIT)) == 0 || (flags & MNT_FORCE)) |
2c69fe14 | 243 | error = VFS_UNMOUNT(mp, flags, p); |
54fb9dc2 | 244 | mp->mnt_flag &= ~MNT_UNMOUNT; |
c001b1c3 | 245 | vfs_unbusy(mp); |
fc2aed1e KM |
246 | if (error) { |
247 | vfs_unlock(mp); | |
248 | } else { | |
249 | vrele(coveredvp); | |
250 | vfs_remove(mp); | |
ea2761aa KM |
251 | if (mp->mnt_mounth != NULL) |
252 | panic("unmount: dangling vnode"); | |
fc2aed1e KM |
253 | free((caddr_t)mp, M_MOUNT); |
254 | } | |
9151110e | 255 | return (error); |
fc2aed1e KM |
256 | } |
257 | ||
258 | /* | |
259 | * Sync system call. | |
260 | * Sync each mounted filesystem. | |
261 | */ | |
ff4fb102 | 262 | /* ARGSUSED */ |
6a6a1e5f | 263 | sync(p, uap, retval) |
5e00df3b | 264 | struct proc *p; |
8429d022 | 265 | void *uap; |
6a6a1e5f | 266 | int *retval; |
3e78e260 | 267 | { |
fc2aed1e | 268 | register struct mount *mp; |
c001b1c3 | 269 | struct mount *omp; |
fc2aed1e KM |
270 | |
271 | mp = rootfs; | |
272 | do { | |
62e35d50 KM |
273 | /* |
274 | * The lock check below is to avoid races with mount | |
275 | * and unmount. | |
276 | */ | |
54fb9dc2 | 277 | if ((mp->mnt_flag & (MNT_MLOCK|MNT_RDONLY|MNT_MPBUSY)) == 0 && |
c001b1c3 | 278 | !vfs_busy(mp)) { |
fc2aed1e | 279 | VFS_SYNC(mp, MNT_NOWAIT); |
c001b1c3 | 280 | omp = mp; |
54fb9dc2 | 281 | mp = mp->mnt_next; |
c001b1c3 KM |
282 | vfs_unbusy(omp); |
283 | } else | |
54fb9dc2 | 284 | mp = mp->mnt_next; |
fc2aed1e | 285 | } while (mp != rootfs); |
78eeb014 | 286 | return (0); |
fc2aed1e KM |
287 | } |
288 | ||
c001b1c3 | 289 | /* |
d4ed1dcd | 290 | * Operate on filesystem quotas. |
c001b1c3 | 291 | */ |
6a6a1e5f KM |
292 | /* ARGSUSED */ |
293 | quotactl(p, uap, retval) | |
5e00df3b | 294 | struct proc *p; |
6a6a1e5f | 295 | register struct args { |
c001b1c3 KM |
296 | char *path; |
297 | int cmd; | |
298 | int uid; | |
299 | caddr_t arg; | |
6a6a1e5f KM |
300 | } *uap; |
301 | int *retval; | |
302 | { | |
c001b1c3 | 303 | register struct mount *mp; |
c001b1c3 | 304 | int error; |
8429d022 | 305 | struct nameidata nd; |
c001b1c3 | 306 | |
dd4c01c2 KM |
307 | NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->path, p); |
308 | if (error = namei(&nd)) | |
8429d022 | 309 | return (error); |
dd4c01c2 KM |
310 | mp = nd.ni_vp->v_mount; |
311 | vrele(nd.ni_vp); | |
2c69fe14 | 312 | return (VFS_QUOTACTL(mp, uap->cmd, uap->uid, uap->arg, p)); |
c001b1c3 KM |
313 | } |
314 | ||
fc2aed1e | 315 | /* |
d4ed1dcd | 316 | * Get filesystem statistics. |
fc2aed1e | 317 | */ |
6a6a1e5f KM |
318 | /* ARGSUSED */ |
319 | statfs(p, uap, retval) | |
5e00df3b | 320 | struct proc *p; |
6a6a1e5f | 321 | register struct args { |
fc2aed1e KM |
322 | char *path; |
323 | struct statfs *buf; | |
6a6a1e5f KM |
324 | } *uap; |
325 | int *retval; | |
326 | { | |
3f705640 | 327 | register struct mount *mp; |
62e35d50 | 328 | register struct statfs *sp; |
fc2aed1e | 329 | int error; |
8429d022 | 330 | struct nameidata nd; |
3e78e260 | 331 | |
dd4c01c2 KM |
332 | NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->path, p); |
333 | if (error = namei(&nd)) | |
8429d022 | 334 | return (error); |
dd4c01c2 | 335 | mp = nd.ni_vp->v_mount; |
54fb9dc2 | 336 | sp = &mp->mnt_stat; |
dd4c01c2 | 337 | vrele(nd.ni_vp); |
2c69fe14 | 338 | if (error = VFS_STATFS(mp, sp, p)) |
8429d022 | 339 | return (error); |
54fb9dc2 | 340 | sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; |
8429d022 | 341 | return (copyout((caddr_t)sp, (caddr_t)uap->buf, sizeof(*sp))); |
fc2aed1e KM |
342 | } |
343 | ||
6a6a1e5f | 344 | /* |
d4ed1dcd | 345 | * Get filesystem statistics. |
6a6a1e5f KM |
346 | */ |
347 | /* ARGSUSED */ | |
348 | fstatfs(p, uap, retval) | |
5e00df3b | 349 | struct proc *p; |
6a6a1e5f | 350 | register struct args { |
fc2aed1e KM |
351 | int fd; |
352 | struct statfs *buf; | |
6a6a1e5f KM |
353 | } *uap; |
354 | int *retval; | |
355 | { | |
fc2aed1e | 356 | struct file *fp; |
3f705640 | 357 | struct mount *mp; |
62e35d50 | 358 | register struct statfs *sp; |
fc2aed1e KM |
359 | int error; |
360 | ||
5e00df3b | 361 | if (error = getvnode(p->p_fd, uap->fd, &fp)) |
8429d022 | 362 | return (error); |
3f705640 | 363 | mp = ((struct vnode *)fp->f_data)->v_mount; |
54fb9dc2 | 364 | sp = &mp->mnt_stat; |
2c69fe14 | 365 | if (error = VFS_STATFS(mp, sp, p)) |
8429d022 | 366 | return (error); |
54fb9dc2 | 367 | sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; |
8429d022 | 368 | return (copyout((caddr_t)sp, (caddr_t)uap->buf, sizeof(*sp))); |
3e78e260 BJ |
369 | } |
370 | ||
bfcdbfbf | 371 | /* |
d4ed1dcd | 372 | * Get statistics on all filesystems. |
bfcdbfbf | 373 | */ |
6a6a1e5f | 374 | getfsstat(p, uap, retval) |
5e00df3b | 375 | struct proc *p; |
6a6a1e5f | 376 | register struct args { |
bfcdbfbf KM |
377 | struct statfs *buf; |
378 | long bufsize; | |
62e35d50 | 379 | int flags; |
6a6a1e5f KM |
380 | } *uap; |
381 | int *retval; | |
382 | { | |
bfcdbfbf | 383 | register struct mount *mp; |
62e35d50 | 384 | register struct statfs *sp; |
f62fad9a | 385 | caddr_t sfsp; |
bfcdbfbf KM |
386 | long count, maxcount, error; |
387 | ||
388 | maxcount = uap->bufsize / sizeof(struct statfs); | |
f62fad9a | 389 | sfsp = (caddr_t)uap->buf; |
bfcdbfbf KM |
390 | mp = rootfs; |
391 | count = 0; | |
392 | do { | |
54fb9dc2 KM |
393 | if (sfsp && count < maxcount && |
394 | ((mp->mnt_flag & MNT_MLOCK) == 0)) { | |
395 | sp = &mp->mnt_stat; | |
62e35d50 KM |
396 | /* |
397 | * If MNT_NOWAIT is specified, do not refresh the | |
398 | * fsstat cache. MNT_WAIT overrides MNT_NOWAIT. | |
399 | */ | |
400 | if (((uap->flags & MNT_NOWAIT) == 0 || | |
401 | (uap->flags & MNT_WAIT)) && | |
2c69fe14 | 402 | (error = VFS_STATFS(mp, sp, p))) { |
54fb9dc2 | 403 | mp = mp->mnt_prev; |
fd8516be KM |
404 | continue; |
405 | } | |
54fb9dc2 | 406 | sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; |
62e35d50 | 407 | if (error = copyout((caddr_t)sp, sfsp, sizeof(*sp))) |
8429d022 | 408 | return (error); |
62e35d50 | 409 | sfsp += sizeof(*sp); |
bfcdbfbf | 410 | } |
f62fad9a | 411 | count++; |
54fb9dc2 | 412 | mp = mp->mnt_prev; |
bfcdbfbf KM |
413 | } while (mp != rootfs); |
414 | if (sfsp && count > maxcount) | |
6a6a1e5f | 415 | *retval = maxcount; |
bfcdbfbf | 416 | else |
6a6a1e5f | 417 | *retval = count; |
8429d022 | 418 | return (0); |
bfcdbfbf KM |
419 | } |
420 | ||
6995a2cb KM |
421 | /* |
422 | * Change current working directory to a given file descriptor. | |
423 | */ | |
6a6a1e5f KM |
424 | /* ARGSUSED */ |
425 | fchdir(p, uap, retval) | |
5e00df3b | 426 | struct proc *p; |
6a6a1e5f | 427 | struct args { |
6995a2cb | 428 | int fd; |
6a6a1e5f KM |
429 | } *uap; |
430 | int *retval; | |
431 | { | |
9342689a JH |
432 | USES_VOP_ACCESS; |
433 | USES_VOP_LOCK; | |
434 | USES_VOP_UNLOCK; | |
5e00df3b | 435 | register struct filedesc *fdp = p->p_fd; |
6995a2cb KM |
436 | register struct vnode *vp; |
437 | struct file *fp; | |
438 | int error; | |
439 | ||
5e00df3b | 440 | if (error = getvnode(fdp, uap->fd, &fp)) |
8429d022 | 441 | return (error); |
6995a2cb KM |
442 | vp = (struct vnode *)fp->f_data; |
443 | VOP_LOCK(vp); | |
444 | if (vp->v_type != VDIR) | |
445 | error = ENOTDIR; | |
446 | else | |
2c69fe14 | 447 | error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p); |
6995a2cb | 448 | VOP_UNLOCK(vp); |
ab214c34 | 449 | if (error) |
8429d022 | 450 | return (error); |
ab214c34 | 451 | VREF(vp); |
5e00df3b KM |
452 | vrele(fdp->fd_cdir); |
453 | fdp->fd_cdir = vp; | |
8429d022 | 454 | return (0); |
6995a2cb KM |
455 | } |
456 | ||
4f083fd7 | 457 | /* |
fc2aed1e | 458 | * Change current working directory (``.''). |
4f083fd7 | 459 | */ |
6a6a1e5f KM |
460 | /* ARGSUSED */ |
461 | chdir(p, uap, retval) | |
5e00df3b | 462 | struct proc *p; |
6a6a1e5f | 463 | struct args { |
3e78e260 | 464 | char *fname; |
6a6a1e5f KM |
465 | } *uap; |
466 | int *retval; | |
467 | { | |
5e00df3b | 468 | register struct filedesc *fdp = p->p_fd; |
fc2aed1e | 469 | int error; |
8429d022 | 470 | struct nameidata nd; |
3e78e260 | 471 | |
dd4c01c2 | 472 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
944f2614 | 473 | if (error = chdirec(&nd, p)) |
8429d022 | 474 | return (error); |
5e00df3b | 475 | vrele(fdp->fd_cdir); |
dd4c01c2 | 476 | fdp->fd_cdir = nd.ni_vp; |
8429d022 | 477 | return (0); |
fc2aed1e KM |
478 | } |
479 | ||
480 | /* | |
481 | * Change notion of root (``/'') directory. | |
482 | */ | |
6a6a1e5f KM |
483 | /* ARGSUSED */ |
484 | chroot(p, uap, retval) | |
5e00df3b | 485 | struct proc *p; |
6a6a1e5f | 486 | struct args { |
fc2aed1e | 487 | char *fname; |
6a6a1e5f KM |
488 | } *uap; |
489 | int *retval; | |
490 | { | |
5e00df3b | 491 | register struct filedesc *fdp = p->p_fd; |
fc2aed1e | 492 | int error; |
8429d022 | 493 | struct nameidata nd; |
fc2aed1e | 494 | |
8429d022 MK |
495 | if (error = suser(p->p_ucred, &p->p_acflag)) |
496 | return (error); | |
dd4c01c2 | 497 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
944f2614 | 498 | if (error = chdirec(&nd, p)) |
8429d022 | 499 | return (error); |
5e00df3b KM |
500 | if (fdp->fd_rdir != NULL) |
501 | vrele(fdp->fd_rdir); | |
dd4c01c2 | 502 | fdp->fd_rdir = nd.ni_vp; |
8429d022 | 503 | return (0); |
fc2aed1e KM |
504 | } |
505 | ||
506 | /* | |
507 | * Common routine for chroot and chdir. | |
508 | */ | |
8429d022 | 509 | chdirec(ndp, p) |
dd4c01c2 | 510 | register struct nameidata *ndp; |
8429d022 | 511 | struct proc *p; |
fc2aed1e | 512 | { |
9342689a JH |
513 | USES_VOP_ACCESS; |
514 | USES_VOP_UNLOCK; | |
fc2aed1e KM |
515 | struct vnode *vp; |
516 | int error; | |
517 | ||
dd4c01c2 | 518 | if (error = namei(ndp)) |
fc2aed1e KM |
519 | return (error); |
520 | vp = ndp->ni_vp; | |
521 | if (vp->v_type != VDIR) | |
522 | error = ENOTDIR; | |
523 | else | |
2c69fe14 | 524 | error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p); |
fc2aed1e KM |
525 | VOP_UNLOCK(vp); |
526 | if (error) | |
527 | vrele(vp); | |
528 | return (error); | |
3e78e260 BJ |
529 | } |
530 | ||
531 | /* | |
532 | * Open system call. | |
6a6a1e5f KM |
533 | * Check permissions, allocate an open file structure, |
534 | * and call the device open routine if any. | |
3e78e260 | 535 | */ |
6a6a1e5f | 536 | open(p, uap, retval) |
5e00df3b | 537 | struct proc *p; |
6a6a1e5f | 538 | register struct args { |
3e78e260 | 539 | char *fname; |
528f664c | 540 | int mode; |
88a7a62a | 541 | int crtmode; |
6a6a1e5f KM |
542 | } *uap; |
543 | int *retval; | |
3e78e260 | 544 | { |
9342689a JH |
545 | USES_VOP_ADVLOCK; |
546 | USES_VOP_UNLOCK; | |
5e00df3b | 547 | register struct filedesc *fdp = p->p_fd; |
3e78e260 | 548 | register struct file *fp; |
6aaf085a | 549 | register struct vnode *vp; |
6a6a1e5f | 550 | int fmode, cmode; |
fc2aed1e | 551 | struct file *nfp; |
ff8d1617 KM |
552 | int type, indx, error; |
553 | struct flock lf; | |
8429d022 | 554 | struct nameidata nd; |
fc2aed1e KM |
555 | extern struct fileops vnops; |
556 | ||
5e00df3b | 557 | if (error = falloc(p, &nfp, &indx)) |
8429d022 | 558 | return (error); |
fc2aed1e | 559 | fp = nfp; |
13b8b20b | 560 | fmode = FFLAGS(uap->mode); |
5e00df3b | 561 | cmode = ((uap->crtmode &~ fdp->fd_cmask) & 07777) &~ S_ISVTX; |
dd4c01c2 | 562 | NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->fname, p); |
03951846 | 563 | p->p_dupfd = -indx - 1; /* XXX check for fdopen */ |
dd4c01c2 | 564 | if (error = vn_open(&nd, fmode, cmode)) { |
da5acac3 JSP |
565 | int dfd = p->p_dupfd; |
566 | p->p_dupfd = 0; | |
336f999d | 567 | ffree(fp); |
da5acac3 JSP |
568 | if ((error == ENODEV || error == ENXIO) && /* XXX from fdopen */ |
569 | dfd >= 0 && | |
570 | (error = dupfdopen(fdp, indx, p->p_dupfd, | |
571 | fmode, error)) == 0) { | |
6a6a1e5f | 572 | *retval = indx; |
8429d022 | 573 | return (0); |
6a6a1e5f | 574 | } |
b10521d6 KM |
575 | if (error == ERESTART) |
576 | error = EINTR; | |
78eeb014 | 577 | fdp->fd_ofiles[indx] = NULL; |
8429d022 | 578 | return (error); |
528f664c | 579 | } |
da5acac3 | 580 | p->p_dupfd = 0; |
dd4c01c2 | 581 | vp = nd.ni_vp; |
b40ecf6f | 582 | fp->f_flag = fmode & FMASK; |
8932276d KM |
583 | fp->f_type = DTYPE_VNODE; |
584 | fp->f_ops = &vnops; | |
585 | fp->f_data = (caddr_t)vp; | |
ff8d1617 KM |
586 | if (fmode & (O_EXLOCK | O_SHLOCK)) { |
587 | lf.l_whence = SEEK_SET; | |
588 | lf.l_start = 0; | |
589 | lf.l_len = 0; | |
590 | if (fmode & O_EXLOCK) | |
591 | lf.l_type = F_WRLCK; | |
592 | else | |
593 | lf.l_type = F_RDLCK; | |
594 | type = F_FLOCK; | |
595 | if ((fmode & FNONBLOCK) == 0) | |
596 | type |= F_WAIT; | |
6aaf085a KM |
597 | if (error = VOP_ADVLOCK(vp, (caddr_t)fp, F_SETLK, &lf, type)) { |
598 | VOP_UNLOCK(vp); | |
599 | (void) vn_close(vp, fp->f_flag, fp->f_cred, p); | |
336f999d | 600 | ffree(fp); |
ff8d1617 KM |
601 | fdp->fd_ofiles[indx] = NULL; |
602 | return (error); | |
603 | } | |
b40ecf6f | 604 | fp->f_flag |= FHASLOCK; |
ff8d1617 | 605 | } |
6aaf085a | 606 | VOP_UNLOCK(vp); |
6a6a1e5f | 607 | *retval = indx; |
8429d022 | 608 | return (0); |
3e78e260 BJ |
609 | } |
610 | ||
4fde03dc | 611 | #ifdef COMPAT_43 |
3e78e260 | 612 | /* |
6a6a1e5f | 613 | * Creat system call. |
3e78e260 | 614 | */ |
4fde03dc | 615 | ocreat(p, uap, retval) |
6a6a1e5f KM |
616 | struct proc *p; |
617 | register struct args { | |
618 | char *fname; | |
619 | int fmode; | |
620 | } *uap; | |
621 | int *retval; | |
3e78e260 | 622 | { |
6a6a1e5f KM |
623 | struct args { |
624 | char *fname; | |
625 | int mode; | |
626 | int crtmode; | |
627 | } openuap; | |
628 | ||
629 | openuap.fname = uap->fname; | |
630 | openuap.crtmode = uap->fmode; | |
631 | openuap.mode = O_WRONLY | O_CREAT | O_TRUNC; | |
8429d022 | 632 | return (open(p, &openuap, retval)); |
6a6a1e5f | 633 | } |
4fde03dc | 634 | #endif /* COMPAT_43 */ |
6a6a1e5f KM |
635 | |
636 | /* | |
d4ed1dcd | 637 | * Mknod system call. |
6a6a1e5f KM |
638 | */ |
639 | /* ARGSUSED */ | |
640 | mknod(p, uap, retval) | |
5e00df3b | 641 | struct proc *p; |
6a6a1e5f | 642 | register struct args { |
3e78e260 BJ |
643 | char *fname; |
644 | int fmode; | |
645 | int dev; | |
6a6a1e5f KM |
646 | } *uap; |
647 | int *retval; | |
648 | { | |
9342689a JH |
649 | USES_VOP_ABORTOP; |
650 | USES_VOP_MKNOD; | |
fc2aed1e KM |
651 | register struct vnode *vp; |
652 | struct vattr vattr; | |
653 | int error; | |
8429d022 | 654 | struct nameidata nd; |
3e78e260 | 655 | |
a5368812 | 656 | CHECKPOINTREF; |
8429d022 MK |
657 | if (error = suser(p->p_ucred, &p->p_acflag)) |
658 | return (error); | |
dd4c01c2 KM |
659 | NDINIT(&nd, CREATE, LOCKPARENT, UIO_USERSPACE, uap->fname, p); |
660 | if (error = namei(&nd)) | |
8429d022 | 661 | return (error); |
dd4c01c2 | 662 | vp = nd.ni_vp; |
fc2aed1e KM |
663 | if (vp != NULL) { |
664 | error = EEXIST; | |
88a7a62a | 665 | goto out; |
3e78e260 | 666 | } |
3ee1461b | 667 | VATTR_NULL(&vattr); |
ab389897 | 668 | switch (uap->fmode & S_IFMT) { |
88a7a62a | 669 | |
ab389897 | 670 | case S_IFMT: /* used by badsect to flag bad sectors */ |
fc2aed1e KM |
671 | vattr.va_type = VBAD; |
672 | break; | |
ab389897 | 673 | case S_IFCHR: |
fc2aed1e KM |
674 | vattr.va_type = VCHR; |
675 | break; | |
ab389897 | 676 | case S_IFBLK: |
fc2aed1e KM |
677 | vattr.va_type = VBLK; |
678 | break; | |
679 | default: | |
680 | error = EINVAL; | |
681 | goto out; | |
3e78e260 | 682 | } |
5e00df3b | 683 | vattr.va_mode = (uap->fmode & 07777) &~ p->p_fd->fd_cmask; |
fc2aed1e | 684 | vattr.va_rdev = uap->dev; |
3e78e260 | 685 | out: |
66955caf | 686 | if (!error) { |
dd4c01c2 KM |
687 | LEASE_CHECK(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE); |
688 | error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr); | |
66955caf | 689 | } else { |
dd4c01c2 KM |
690 | VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); |
691 | if (nd.ni_dvp == vp) | |
692 | vrele(nd.ni_dvp); | |
6c44e83b | 693 | else |
dd4c01c2 | 694 | vput(nd.ni_dvp); |
66955caf KM |
695 | if (vp) |
696 | vrele(vp); | |
697 | } | |
a5368812 | 698 | CHECKREFS("mknod"); |
8429d022 | 699 | return (error); |
3e78e260 BJ |
700 | } |
701 | ||
4751dd21 | 702 | /* |
d4ed1dcd | 703 | * Mkfifo system call. |
4751dd21 | 704 | */ |
6a6a1e5f KM |
705 | /* ARGSUSED */ |
706 | mkfifo(p, uap, retval) | |
5e00df3b | 707 | struct proc *p; |
6a6a1e5f | 708 | register struct args { |
4751dd21 KM |
709 | char *fname; |
710 | int fmode; | |
6a6a1e5f KM |
711 | } *uap; |
712 | int *retval; | |
713 | { | |
9342689a JH |
714 | USES_VOP_ABORTOP; |
715 | USES_VOP_MKNOD; | |
4751dd21 KM |
716 | struct vattr vattr; |
717 | int error; | |
8429d022 | 718 | struct nameidata nd; |
4751dd21 KM |
719 | |
720 | #ifndef FIFO | |
8429d022 | 721 | return (EOPNOTSUPP); |
4751dd21 | 722 | #else |
dd4c01c2 KM |
723 | NDINIT(&nd, CREATE, LOCKPARENT, UIO_USERSPACE, uap->fname, p); |
724 | if (error = namei(&nd)) | |
8429d022 | 725 | return (error); |
dd4c01c2 KM |
726 | if (nd.ni_vp != NULL) { |
727 | VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); | |
728 | if (nd.ni_dvp == nd.ni_vp) | |
729 | vrele(nd.ni_dvp); | |
6c44e83b | 730 | else |
dd4c01c2 KM |
731 | vput(nd.ni_dvp); |
732 | vrele(nd.ni_vp); | |
8429d022 | 733 | return (EEXIST); |
4751dd21 | 734 | } |
3658f091 KB |
735 | VATTR_NULL(&vattr); |
736 | vattr.va_type = VFIFO; | |
5e00df3b | 737 | vattr.va_mode = (uap->fmode & 07777) &~ p->p_fd->fd_cmask; |
dd4c01c2 KM |
738 | LEASE_CHECK(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE); |
739 | return (VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr)); | |
4751dd21 KM |
740 | #endif /* FIFO */ |
741 | } | |
742 | ||
3e78e260 | 743 | /* |
d4ed1dcd | 744 | * Link system call. |
3e78e260 | 745 | */ |
6a6a1e5f KM |
746 | /* ARGSUSED */ |
747 | link(p, uap, retval) | |
5e00df3b | 748 | struct proc *p; |
6a6a1e5f | 749 | register struct args { |
3e78e260 BJ |
750 | char *target; |
751 | char *linkname; | |
6a6a1e5f KM |
752 | } *uap; |
753 | int *retval; | |
754 | { | |
9342689a JH |
755 | USES_VOP_ABORTOP; |
756 | USES_VOP_LINK; | |
fc2aed1e KM |
757 | register struct vnode *vp, *xp; |
758 | int error; | |
8429d022 | 759 | struct nameidata nd; |
3e78e260 | 760 | |
a5368812 | 761 | CHECKPOINTREF; |
dd4c01c2 KM |
762 | NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->target, p); |
763 | if (error = namei(&nd)) | |
8429d022 | 764 | return (error); |
dd4c01c2 | 765 | vp = nd.ni_vp; |
fc2aed1e | 766 | if (vp->v_type == VDIR && |
8429d022 | 767 | (error = suser(p->p_ucred, &p->p_acflag))) |
fc2aed1e | 768 | goto out1; |
dd4c01c2 KM |
769 | nd.ni_cnd.cn_nameiop = CREATE; |
770 | nd.ni_cnd.cn_flags = LOCKPARENT; | |
771 | nd.ni_dirp = (caddr_t)uap->linkname; | |
772 | if (error = namei(&nd)) | |
fc2aed1e | 773 | goto out1; |
dd4c01c2 | 774 | xp = nd.ni_vp; |
3e78e260 | 775 | if (xp != NULL) { |
fc2aed1e | 776 | error = EEXIST; |
3e78e260 BJ |
777 | goto out; |
778 | } | |
dd4c01c2 | 779 | xp = nd.ni_dvp; |
3e78e260 | 780 | out: |
66955caf | 781 | if (!error) { |
e62d4143 KM |
782 | LEASE_CHECK(xp, p, p->p_ucred, LEASE_WRITE); |
783 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); | |
532a2b44 | 784 | error = VOP_LINK(nd.ni_dvp, vp, &nd.ni_cnd); |
66955caf | 785 | } else { |
dd4c01c2 KM |
786 | VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); |
787 | if (nd.ni_dvp == nd.ni_vp) | |
788 | vrele(nd.ni_dvp); | |
6c44e83b | 789 | else |
dd4c01c2 KM |
790 | vput(nd.ni_dvp); |
791 | if (nd.ni_vp) | |
792 | vrele(nd.ni_vp); | |
66955caf | 793 | } |
fc2aed1e KM |
794 | out1: |
795 | vrele(vp); | |
a5368812 | 796 | CHECKREFS("link"); |
8429d022 | 797 | return (error); |
3e78e260 BJ |
798 | } |
799 | ||
800 | /* | |
d4ed1dcd | 801 | * Make a symbolic link. |
3e78e260 | 802 | */ |
6a6a1e5f KM |
803 | /* ARGSUSED */ |
804 | symlink(p, uap, retval) | |
5e00df3b | 805 | struct proc *p; |
6a6a1e5f | 806 | register struct args { |
3e78e260 BJ |
807 | char *target; |
808 | char *linkname; | |
6a6a1e5f KM |
809 | } *uap; |
810 | int *retval; | |
811 | { | |
9342689a JH |
812 | USES_VOP_ABORTOP; |
813 | USES_VOP_SYMLINK; | |
fc2aed1e KM |
814 | struct vattr vattr; |
815 | char *target; | |
816 | int error; | |
8429d022 | 817 | struct nameidata nd; |
3e78e260 | 818 | |
a5368812 | 819 | CHECKPOINTREF; |
fc2aed1e KM |
820 | MALLOC(target, char *, MAXPATHLEN, M_NAMEI, M_WAITOK); |
821 | if (error = copyinstr(uap->target, target, MAXPATHLEN, (u_int *)0)) | |
66955caf | 822 | goto out; |
dd4c01c2 KM |
823 | NDINIT(&nd, CREATE, LOCKPARENT, UIO_USERSPACE, uap->linkname, p); |
824 | if (error = namei(&nd)) | |
66955caf | 825 | goto out; |
dd4c01c2 KM |
826 | if (nd.ni_vp) { |
827 | VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); | |
828 | if (nd.ni_dvp == nd.ni_vp) | |
829 | vrele(nd.ni_dvp); | |
6c44e83b | 830 | else |
dd4c01c2 KM |
831 | vput(nd.ni_dvp); |
832 | vrele(nd.ni_vp); | |
fc2aed1e KM |
833 | error = EEXIST; |
834 | goto out; | |
3e78e260 | 835 | } |
3ee1461b | 836 | VATTR_NULL(&vattr); |
5e00df3b | 837 | vattr.va_mode = 0777 &~ p->p_fd->fd_cmask; |
dd4c01c2 KM |
838 | LEASE_CHECK(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE); |
839 | error = VOP_SYMLINK(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr, target); | |
fc2aed1e | 840 | out: |
fc2aed1e | 841 | FREE(target, M_NAMEI); |
a5368812 | 842 | CHECKREFS("symlink"); |
8429d022 | 843 | return (error); |
3e78e260 BJ |
844 | } |
845 | ||
846 | /* | |
d4ed1dcd | 847 | * Delete a name from the filesystem. |
3e78e260 | 848 | */ |
6a6a1e5f KM |
849 | /* ARGSUSED */ |
850 | unlink(p, uap, retval) | |
5e00df3b | 851 | struct proc *p; |
6a6a1e5f | 852 | struct args { |
dd4c01c2 | 853 | char *name; |
6a6a1e5f KM |
854 | } *uap; |
855 | int *retval; | |
856 | { | |
9342689a JH |
857 | USES_VOP_ABORTOP; |
858 | USES_VOP_REMOVE; | |
fc2aed1e KM |
859 | register struct vnode *vp; |
860 | int error; | |
8429d022 | 861 | struct nameidata nd; |
3e78e260 | 862 | |
a5368812 | 863 | CHECKPOINTREF; |
dd4c01c2 KM |
864 | NDINIT(&nd, DELETE, LOCKPARENT | LOCKLEAF, UIO_USERSPACE, uap->name, p); |
865 | if (error = namei(&nd)) | |
8429d022 | 866 | return (error); |
dd4c01c2 | 867 | vp = nd.ni_vp; |
fc2aed1e | 868 | if (vp->v_type == VDIR && |
8429d022 | 869 | (error = suser(p->p_ucred, &p->p_acflag))) |
3e78e260 BJ |
870 | goto out; |
871 | /* | |
d4ed1dcd | 872 | * The root of a mounted filesystem cannot be deleted. |
3e78e260 | 873 | */ |
fc2aed1e KM |
874 | if (vp->v_flag & VROOT) { |
875 | error = EBUSY; | |
3e78e260 BJ |
876 | goto out; |
877 | } | |
9db58063 | 878 | (void) vnode_pager_uncache(vp); |
3e78e260 | 879 | out: |
66955caf | 880 | if (!error) { |
dd4c01c2 | 881 | LEASE_CHECK(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE); |
e62d4143 | 882 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
dd4c01c2 | 883 | error = VOP_REMOVE(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd); |
66955caf | 884 | } else { |
dd4c01c2 KM |
885 | VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); |
886 | if (nd.ni_dvp == vp) | |
887 | vrele(nd.ni_dvp); | |
6c44e83b | 888 | else |
dd4c01c2 | 889 | vput(nd.ni_dvp); |
66955caf KM |
890 | vput(vp); |
891 | } | |
a5368812 | 892 | CHECKREFS("unlink"); |
8429d022 | 893 | return (error); |
3e78e260 BJ |
894 | } |
895 | ||
8932276d | 896 | #if defined(COMPAT_43) || defined(COMPAT_SUNOS) |
3e78e260 | 897 | /* |
d4ed1dcd | 898 | * Seek system call. |
3e78e260 | 899 | */ |
6a6a1e5f | 900 | lseek(p, uap, retval) |
be320a2b KM |
901 | struct proc *p; |
902 | register struct args { | |
903 | int fdes; | |
904 | long off; | |
905 | int sbase; | |
906 | } *uap; | |
907 | long *retval; | |
908 | { | |
909 | struct nargs { | |
910 | int fdes; | |
911 | off_t off; | |
912 | int sbase; | |
913 | } nuap; | |
914 | quad_t qret; | |
915 | int error; | |
916 | ||
917 | nuap.fdes = uap->fdes; | |
918 | nuap.off = uap->off; | |
919 | nuap.sbase = uap->sbase; | |
ae9b6dc3 | 920 | error = __lseek(p, &nuap, &qret); |
be320a2b KM |
921 | *retval = qret; |
922 | return (error); | |
923 | } | |
8932276d | 924 | #endif /* COMPAT_43 || COMPAT_SUNOS */ |
be320a2b KM |
925 | |
926 | /* | |
927 | * Seek system call. | |
928 | */ | |
ae9b6dc3 | 929 | __lseek(p, uap, retval) |
5e00df3b | 930 | struct proc *p; |
6a6a1e5f | 931 | register struct args { |
fc2aed1e | 932 | int fdes; |
3e78e260 BJ |
933 | off_t off; |
934 | int sbase; | |
6a6a1e5f KM |
935 | } *uap; |
936 | off_t *retval; | |
937 | { | |
9342689a | 938 | USES_VOP_GETATTR; |
8429d022 | 939 | struct ucred *cred = p->p_ucred; |
5e00df3b | 940 | register struct filedesc *fdp = p->p_fd; |
6a6a1e5f | 941 | register struct file *fp; |
fc2aed1e KM |
942 | struct vattr vattr; |
943 | int error; | |
944 | ||
8429d022 | 945 | if ((unsigned)uap->fdes >= fdp->fd_nfiles || |
78eeb014 | 946 | (fp = fdp->fd_ofiles[uap->fdes]) == NULL) |
8429d022 | 947 | return (EBADF); |
fc2aed1e | 948 | if (fp->f_type != DTYPE_VNODE) |
8429d022 | 949 | return (ESPIPE); |
b4d1aee9 SL |
950 | switch (uap->sbase) { |
951 | ||
952 | case L_INCR: | |
953 | fp->f_offset += uap->off; | |
954 | break; | |
955 | ||
956 | case L_XTND: | |
fc2aed1e | 957 | if (error = VOP_GETATTR((struct vnode *)fp->f_data, |
2c69fe14 | 958 | &vattr, cred, p)) |
8429d022 | 959 | return (error); |
fc2aed1e | 960 | fp->f_offset = uap->off + vattr.va_size; |
b4d1aee9 SL |
961 | break; |
962 | ||
963 | case L_SET: | |
964 | fp->f_offset = uap->off; | |
965 | break; | |
966 | ||
967 | default: | |
8429d022 | 968 | return (EINVAL); |
b4d1aee9 | 969 | } |
6a6a1e5f | 970 | *retval = fp->f_offset; |
8429d022 | 971 | return (0); |
3e78e260 BJ |
972 | } |
973 | ||
974 | /* | |
d4ed1dcd | 975 | * Check access permissions. |
3e78e260 | 976 | */ |
6a6a1e5f KM |
977 | /* ARGSUSED */ |
978 | saccess(p, uap, retval) | |
5e00df3b | 979 | struct proc *p; |
6a6a1e5f | 980 | register struct args { |
3e78e260 BJ |
981 | char *fname; |
982 | int fmode; | |
6a6a1e5f KM |
983 | } *uap; |
984 | int *retval; | |
985 | { | |
9342689a | 986 | USES_VOP_ACCESS; |
8429d022 | 987 | register struct ucred *cred = p->p_ucred; |
fc2aed1e KM |
988 | register struct vnode *vp; |
989 | int error, mode, svuid, svgid; | |
8429d022 | 990 | struct nameidata nd; |
3e78e260 | 991 | |
6a6a1e5f KM |
992 | svuid = cred->cr_uid; |
993 | svgid = cred->cr_groups[0]; | |
8429d022 MK |
994 | cred->cr_uid = p->p_cred->p_ruid; |
995 | cred->cr_groups[0] = p->p_cred->p_rgid; | |
dd4c01c2 KM |
996 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
997 | if (error = namei(&nd)) | |
fc2aed1e | 998 | goto out1; |
dd4c01c2 | 999 | vp = nd.ni_vp; |
fc2aed1e KM |
1000 | /* |
1001 | * fmode == 0 means only check for exist | |
1002 | */ | |
1003 | if (uap->fmode) { | |
1004 | mode = 0; | |
1005 | if (uap->fmode & R_OK) | |
1006 | mode |= VREAD; | |
1007 | if (uap->fmode & W_OK) | |
1008 | mode |= VWRITE; | |
1009 | if (uap->fmode & X_OK) | |
1010 | mode |= VEXEC; | |
9230ead4 | 1011 | if ((mode & VWRITE) == 0 || (error = vn_writechk(vp)) == 0) |
2c69fe14 | 1012 | error = VOP_ACCESS(vp, mode, cred, p); |
3e78e260 | 1013 | } |
fc2aed1e KM |
1014 | vput(vp); |
1015 | out1: | |
6a6a1e5f KM |
1016 | cred->cr_uid = svuid; |
1017 | cred->cr_groups[0] = svgid; | |
8429d022 | 1018 | return (error); |
3e78e260 | 1019 | } |
d67a03eb | 1020 | |
8932276d | 1021 | #if defined(COMPAT_43) || defined(COMPAT_SUNOS) |
d67a03eb | 1022 | /* |
d4ed1dcd KM |
1023 | * Stat system call. |
1024 | * This version follows links. | |
d67a03eb | 1025 | */ |
6a6a1e5f | 1026 | /* ARGSUSED */ |
ae9b6dc3 | 1027 | ostat(p, uap, retval) |
be320a2b KM |
1028 | struct proc *p; |
1029 | register struct args { | |
1030 | char *fname; | |
1031 | struct ostat *ub; | |
1032 | } *uap; | |
1033 | int *retval; | |
1034 | { | |
1035 | struct stat sb; | |
1036 | struct ostat osb; | |
1037 | int error; | |
1038 | struct nameidata nd; | |
1039 | ||
1040 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); | |
1041 | if (error = namei(&nd)) | |
1042 | return (error); | |
1043 | error = vn_stat(nd.ni_vp, &sb, p); | |
1044 | vput(nd.ni_vp); | |
1045 | if (error) | |
1046 | return (error); | |
1047 | cvtstat(&sb, &osb); | |
1048 | error = copyout((caddr_t)&osb, (caddr_t)uap->ub, sizeof (osb)); | |
1049 | return (error); | |
1050 | } | |
1051 | ||
1052 | /* | |
1053 | * Lstat system call. | |
1054 | * This version does not follow links. | |
1055 | */ | |
1056 | /* ARGSUSED */ | |
ae9b6dc3 | 1057 | olstat(p, uap, retval) |
be320a2b KM |
1058 | struct proc *p; |
1059 | register struct args { | |
1060 | char *fname; | |
1061 | struct ostat *ub; | |
1062 | } *uap; | |
1063 | int *retval; | |
1064 | { | |
1065 | struct stat sb; | |
1066 | struct ostat osb; | |
1067 | int error; | |
1068 | struct nameidata nd; | |
1069 | ||
1070 | NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); | |
1071 | if (error = namei(&nd)) | |
1072 | return (error); | |
1073 | error = vn_stat(nd.ni_vp, &sb, p); | |
1074 | vput(nd.ni_vp); | |
1075 | if (error) | |
1076 | return (error); | |
1077 | cvtstat(&sb, &osb); | |
1078 | error = copyout((caddr_t)&osb, (caddr_t)uap->ub, sizeof (osb)); | |
1079 | return (error); | |
1080 | } | |
1081 | ||
1082 | /* | |
1083 | * convert from an old to a new stat structure. | |
1084 | */ | |
1085 | cvtstat(st, ost) | |
1086 | struct stat *st; | |
1087 | struct ostat *ost; | |
1088 | { | |
1089 | ||
1090 | ost->st_dev = st->st_dev; | |
1091 | ost->st_ino = st->st_ino; | |
1092 | ost->st_mode = st->st_mode; | |
1093 | ost->st_nlink = st->st_nlink; | |
1094 | ost->st_uid = st->st_uid; | |
1095 | ost->st_gid = st->st_gid; | |
1096 | ost->st_rdev = st->st_rdev; | |
1097 | if (st->st_size < (quad_t)1 << 32) | |
1098 | ost->st_size = st->st_size; | |
1099 | else | |
1100 | ost->st_size = -2; | |
1101 | ost->st_atime = st->st_atime; | |
1102 | ost->st_mtime = st->st_mtime; | |
1103 | ost->st_ctime = st->st_ctime; | |
1104 | ost->st_blksize = st->st_blksize; | |
1105 | ost->st_blocks = st->st_blocks; | |
1106 | ost->st_flags = st->st_flags; | |
1107 | ost->st_gen = st->st_gen; | |
1108 | } | |
8932276d | 1109 | #endif /* COMPAT_43 || COMPAT_SUNOS */ |
be320a2b KM |
1110 | |
1111 | /* | |
1112 | * Stat system call. | |
1113 | * This version follows links. | |
1114 | */ | |
1115 | /* ARGSUSED */ | |
ae9b6dc3 | 1116 | stat(p, uap, retval) |
5e00df3b | 1117 | struct proc *p; |
6a6a1e5f KM |
1118 | register struct args { |
1119 | char *fname; | |
1120 | struct stat *ub; | |
1121 | } *uap; | |
1122 | int *retval; | |
d67a03eb | 1123 | { |
6a6a1e5f KM |
1124 | struct stat sb; |
1125 | int error; | |
8429d022 | 1126 | struct nameidata nd; |
d67a03eb | 1127 | |
dd4c01c2 KM |
1128 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
1129 | if (error = namei(&nd)) | |
8429d022 | 1130 | return (error); |
dd4c01c2 KM |
1131 | error = vn_stat(nd.ni_vp, &sb, p); |
1132 | vput(nd.ni_vp); | |
6a6a1e5f | 1133 | if (error) |
8429d022 | 1134 | return (error); |
6a6a1e5f | 1135 | error = copyout((caddr_t)&sb, (caddr_t)uap->ub, sizeof (sb)); |
8429d022 | 1136 | return (error); |
d67a03eb BJ |
1137 | } |
1138 | ||
5485e062 | 1139 | /* |
d4ed1dcd KM |
1140 | * Lstat system call. |
1141 | * This version does not follow links. | |
5485e062 | 1142 | */ |
6a6a1e5f | 1143 | /* ARGSUSED */ |
ae9b6dc3 | 1144 | lstat(p, uap, retval) |
5e00df3b | 1145 | struct proc *p; |
6a6a1e5f | 1146 | register struct args { |
5485e062 | 1147 | char *fname; |
88a7a62a | 1148 | struct stat *ub; |
6a6a1e5f KM |
1149 | } *uap; |
1150 | int *retval; | |
1151 | { | |
fc2aed1e KM |
1152 | struct stat sb; |
1153 | int error; | |
8429d022 | 1154 | struct nameidata nd; |
5485e062 | 1155 | |
dd4c01c2 KM |
1156 | NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
1157 | if (error = namei(&nd)) | |
8429d022 | 1158 | return (error); |
dd4c01c2 KM |
1159 | error = vn_stat(nd.ni_vp, &sb, p); |
1160 | vput(nd.ni_vp); | |
fc2aed1e | 1161 | if (error) |
8429d022 | 1162 | return (error); |
fc2aed1e | 1163 | error = copyout((caddr_t)&sb, (caddr_t)uap->ub, sizeof (sb)); |
8429d022 | 1164 | return (error); |
d67a03eb BJ |
1165 | } |
1166 | ||
1167 | /* | |
d4ed1dcd | 1168 | * Return target name of a symbolic link. |
5485e062 | 1169 | */ |
6a6a1e5f KM |
1170 | /* ARGSUSED */ |
1171 | readlink(p, uap, retval) | |
5e00df3b | 1172 | struct proc *p; |
6a6a1e5f | 1173 | register struct args { |
5485e062 BJ |
1174 | char *name; |
1175 | char *buf; | |
1176 | int count; | |
6a6a1e5f KM |
1177 | } *uap; |
1178 | int *retval; | |
1179 | { | |
9342689a | 1180 | USES_VOP_READLINK; |
fc2aed1e KM |
1181 | register struct vnode *vp; |
1182 | struct iovec aiov; | |
1183 | struct uio auio; | |
1184 | int error; | |
8429d022 | 1185 | struct nameidata nd; |
5485e062 | 1186 | |
a5368812 | 1187 | CHECKPOINTREF; |
dd4c01c2 KM |
1188 | NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE, uap->name, p); |
1189 | if (error = namei(&nd)) | |
8429d022 | 1190 | return (error); |
dd4c01c2 | 1191 | vp = nd.ni_vp; |
fc2aed1e KM |
1192 | if (vp->v_type != VLNK) { |
1193 | error = EINVAL; | |
5485e062 BJ |
1194 | goto out; |
1195 | } | |
fc2aed1e KM |
1196 | aiov.iov_base = uap->buf; |
1197 | aiov.iov_len = uap->count; | |
1198 | auio.uio_iov = &aiov; | |
1199 | auio.uio_iovcnt = 1; | |
1200 | auio.uio_offset = 0; | |
1201 | auio.uio_rw = UIO_READ; | |
1202 | auio.uio_segflg = UIO_USERSPACE; | |
2c69fe14 | 1203 | auio.uio_procp = p; |
fc2aed1e | 1204 | auio.uio_resid = uap->count; |
8429d022 | 1205 | error = VOP_READLINK(vp, &auio, p->p_ucred); |
5485e062 | 1206 | out: |
fc2aed1e | 1207 | vput(vp); |
6a6a1e5f | 1208 | *retval = uap->count - auio.uio_resid; |
a5368812 | 1209 | CHECKREFS("readlink"); |
8429d022 | 1210 | return (error); |
5485e062 BJ |
1211 | } |
1212 | ||
6995a2cb KM |
1213 | /* |
1214 | * Change flags of a file given path name. | |
1215 | */ | |
6a6a1e5f KM |
1216 | /* ARGSUSED */ |
1217 | chflags(p, uap, retval) | |
5e00df3b | 1218 | struct proc *p; |
6a6a1e5f | 1219 | register struct args { |
6995a2cb KM |
1220 | char *fname; |
1221 | int flags; | |
6a6a1e5f KM |
1222 | } *uap; |
1223 | int *retval; | |
1224 | { | |
9342689a | 1225 | USES_VOP_SETATTR; |
6995a2cb KM |
1226 | register struct vnode *vp; |
1227 | struct vattr vattr; | |
1228 | int error; | |
8429d022 | 1229 | struct nameidata nd; |
6995a2cb | 1230 | |
dd4c01c2 KM |
1231 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
1232 | if (error = namei(&nd)) | |
8429d022 | 1233 | return (error); |
dd4c01c2 | 1234 | vp = nd.ni_vp; |
54fb9dc2 | 1235 | if (vp->v_mount->mnt_flag & MNT_RDONLY) { |
6995a2cb KM |
1236 | error = EROFS; |
1237 | goto out; | |
1238 | } | |
3658f091 KB |
1239 | VATTR_NULL(&vattr); |
1240 | vattr.va_flags = uap->flags; | |
e62d4143 | 1241 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1242 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
6995a2cb KM |
1243 | out: |
1244 | vput(vp); | |
8429d022 | 1245 | return (error); |
6995a2cb KM |
1246 | } |
1247 | ||
1248 | /* | |
1249 | * Change flags of a file given a file descriptor. | |
1250 | */ | |
6a6a1e5f KM |
1251 | /* ARGSUSED */ |
1252 | fchflags(p, uap, retval) | |
5e00df3b | 1253 | struct proc *p; |
6a6a1e5f | 1254 | register struct args { |
6995a2cb KM |
1255 | int fd; |
1256 | int flags; | |
6a6a1e5f KM |
1257 | } *uap; |
1258 | int *retval; | |
1259 | { | |
9342689a JH |
1260 | USES_VOP_LOCK; |
1261 | USES_VOP_SETATTR; | |
1262 | USES_VOP_UNLOCK; | |
6995a2cb KM |
1263 | struct vattr vattr; |
1264 | struct vnode *vp; | |
1265 | struct file *fp; | |
1266 | int error; | |
1267 | ||
5e00df3b | 1268 | if (error = getvnode(p->p_fd, uap->fd, &fp)) |
8429d022 | 1269 | return (error); |
6995a2cb KM |
1270 | vp = (struct vnode *)fp->f_data; |
1271 | VOP_LOCK(vp); | |
54fb9dc2 | 1272 | if (vp->v_mount->mnt_flag & MNT_RDONLY) { |
6995a2cb KM |
1273 | error = EROFS; |
1274 | goto out; | |
1275 | } | |
3658f091 KB |
1276 | VATTR_NULL(&vattr); |
1277 | vattr.va_flags = uap->flags; | |
e62d4143 | 1278 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1279 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
6995a2cb KM |
1280 | out: |
1281 | VOP_UNLOCK(vp); | |
8429d022 | 1282 | return (error); |
6995a2cb KM |
1283 | } |
1284 | ||
4f083fd7 SL |
1285 | /* |
1286 | * Change mode of a file given path name. | |
1287 | */ | |
6a6a1e5f KM |
1288 | /* ARGSUSED */ |
1289 | chmod(p, uap, retval) | |
5e00df3b | 1290 | struct proc *p; |
6a6a1e5f | 1291 | register struct args { |
3e78e260 BJ |
1292 | char *fname; |
1293 | int fmode; | |
6a6a1e5f KM |
1294 | } *uap; |
1295 | int *retval; | |
1296 | { | |
9342689a | 1297 | USES_VOP_SETATTR; |
fc2aed1e KM |
1298 | register struct vnode *vp; |
1299 | struct vattr vattr; | |
1300 | int error; | |
8429d022 | 1301 | struct nameidata nd; |
5485e062 | 1302 | |
dd4c01c2 KM |
1303 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
1304 | if (error = namei(&nd)) | |
8429d022 | 1305 | return (error); |
dd4c01c2 | 1306 | vp = nd.ni_vp; |
54fb9dc2 | 1307 | if (vp->v_mount->mnt_flag & MNT_RDONLY) { |
fc2aed1e KM |
1308 | error = EROFS; |
1309 | goto out; | |
1310 | } | |
3658f091 KB |
1311 | VATTR_NULL(&vattr); |
1312 | vattr.va_mode = uap->fmode & 07777; | |
e62d4143 | 1313 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1314 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
fc2aed1e KM |
1315 | out: |
1316 | vput(vp); | |
8429d022 | 1317 | return (error); |
528f664c | 1318 | } |
f94ceb3b | 1319 | |
4f083fd7 SL |
1320 | /* |
1321 | * Change mode of a file given a file descriptor. | |
1322 | */ | |
6a6a1e5f KM |
1323 | /* ARGSUSED */ |
1324 | fchmod(p, uap, retval) | |
5e00df3b | 1325 | struct proc *p; |
6a6a1e5f | 1326 | register struct args { |
528f664c SL |
1327 | int fd; |
1328 | int fmode; | |
6a6a1e5f KM |
1329 | } *uap; |
1330 | int *retval; | |
1331 | { | |
9342689a JH |
1332 | USES_VOP_LOCK; |
1333 | USES_VOP_SETATTR; | |
1334 | USES_VOP_UNLOCK; | |
fc2aed1e KM |
1335 | struct vattr vattr; |
1336 | struct vnode *vp; | |
1337 | struct file *fp; | |
1338 | int error; | |
1339 | ||
5e00df3b | 1340 | if (error = getvnode(p->p_fd, uap->fd, &fp)) |
8429d022 | 1341 | return (error); |
fc2aed1e KM |
1342 | vp = (struct vnode *)fp->f_data; |
1343 | VOP_LOCK(vp); | |
54fb9dc2 | 1344 | if (vp->v_mount->mnt_flag & MNT_RDONLY) { |
fc2aed1e KM |
1345 | error = EROFS; |
1346 | goto out; | |
f94ceb3b | 1347 | } |
3658f091 KB |
1348 | VATTR_NULL(&vattr); |
1349 | vattr.va_mode = uap->fmode & 07777; | |
e62d4143 | 1350 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1351 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
fc2aed1e KM |
1352 | out: |
1353 | VOP_UNLOCK(vp); | |
8429d022 | 1354 | return (error); |
5485e062 BJ |
1355 | } |
1356 | ||
4f083fd7 SL |
1357 | /* |
1358 | * Set ownership given a path name. | |
1359 | */ | |
6a6a1e5f KM |
1360 | /* ARGSUSED */ |
1361 | chown(p, uap, retval) | |
5e00df3b | 1362 | struct proc *p; |
6a6a1e5f | 1363 | register struct args { |
3e78e260 BJ |
1364 | char *fname; |
1365 | int uid; | |
1366 | int gid; | |
6a6a1e5f KM |
1367 | } *uap; |
1368 | int *retval; | |
1369 | { | |
9342689a | 1370 | USES_VOP_SETATTR; |
fc2aed1e KM |
1371 | register struct vnode *vp; |
1372 | struct vattr vattr; | |
1373 | int error; | |
8429d022 | 1374 | struct nameidata nd; |
d67a03eb | 1375 | |
dd4c01c2 KM |
1376 | NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
1377 | if (error = namei(&nd)) | |
8429d022 | 1378 | return (error); |
dd4c01c2 | 1379 | vp = nd.ni_vp; |
54fb9dc2 | 1380 | if (vp->v_mount->mnt_flag & MNT_RDONLY) { |
fc2aed1e KM |
1381 | error = EROFS; |
1382 | goto out; | |
1383 | } | |
3658f091 KB |
1384 | VATTR_NULL(&vattr); |
1385 | vattr.va_uid = uap->uid; | |
1386 | vattr.va_gid = uap->gid; | |
e62d4143 | 1387 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1388 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
fc2aed1e KM |
1389 | out: |
1390 | vput(vp); | |
8429d022 | 1391 | return (error); |
528f664c | 1392 | } |
f94ceb3b | 1393 | |
4f083fd7 SL |
1394 | /* |
1395 | * Set ownership given a file descriptor. | |
1396 | */ | |
6a6a1e5f KM |
1397 | /* ARGSUSED */ |
1398 | fchown(p, uap, retval) | |
5e00df3b | 1399 | struct proc *p; |
6a6a1e5f | 1400 | register struct args { |
528f664c SL |
1401 | int fd; |
1402 | int uid; | |
1403 | int gid; | |
6a6a1e5f KM |
1404 | } *uap; |
1405 | int *retval; | |
1406 | { | |
9342689a JH |
1407 | USES_VOP_LOCK; |
1408 | USES_VOP_SETATTR; | |
1409 | USES_VOP_UNLOCK; | |
fc2aed1e KM |
1410 | struct vattr vattr; |
1411 | struct vnode *vp; | |
1412 | struct file *fp; | |
1413 | int error; | |
1414 | ||
5e00df3b | 1415 | if (error = getvnode(p->p_fd, uap->fd, &fp)) |
8429d022 | 1416 | return (error); |
fc2aed1e KM |
1417 | vp = (struct vnode *)fp->f_data; |
1418 | VOP_LOCK(vp); | |
54fb9dc2 | 1419 | if (vp->v_mount->mnt_flag & MNT_RDONLY) { |
fc2aed1e KM |
1420 | error = EROFS; |
1421 | goto out; | |
1422 | } | |
3658f091 KB |
1423 | VATTR_NULL(&vattr); |
1424 | vattr.va_uid = uap->uid; | |
1425 | vattr.va_gid = uap->gid; | |
e62d4143 | 1426 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1427 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
fc2aed1e KM |
1428 | out: |
1429 | VOP_UNLOCK(vp); | |
8429d022 | 1430 | return (error); |
d67a03eb BJ |
1431 | } |
1432 | ||
6a6a1e5f KM |
1433 | /* |
1434 | * Set the access and modification times of a file. | |
1435 | */ | |
1436 | /* ARGSUSED */ | |
1437 | utimes(p, uap, retval) | |
5e00df3b | 1438 | struct proc *p; |
6a6a1e5f | 1439 | register struct args { |
bb1b75f4 SL |
1440 | char *fname; |
1441 | struct timeval *tptr; | |
6a6a1e5f KM |
1442 | } *uap; |
1443 | int *retval; | |
1444 | { | |
9342689a | 1445 | USES_VOP_SETATTR; |
fc2aed1e | 1446 | register struct vnode *vp; |
bb1b75f4 | 1447 | struct timeval tv[2]; |
fc2aed1e KM |
1448 | struct vattr vattr; |
1449 | int error; | |
8429d022 | 1450 | struct nameidata nd; |
bb1b75f4 | 1451 | |
fc2aed1e | 1452 | if (error = copyin((caddr_t)uap->tptr, (caddr_t)tv, sizeof (tv))) |
8429d022 | 1453 | return (error); |
dd4c01c2 KM |
1454 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
1455 | if (error = namei(&nd)) | |
8429d022 | 1456 | return (error); |
dd4c01c2 | 1457 | vp = nd.ni_vp; |
54fb9dc2 | 1458 | if (vp->v_mount->mnt_flag & MNT_RDONLY) { |
fc2aed1e KM |
1459 | error = EROFS; |
1460 | goto out; | |
bb1b75f4 | 1461 | } |
3658f091 | 1462 | VATTR_NULL(&vattr); |
7e11a0c9 KM |
1463 | vattr.va_atime.ts_sec = tv[0].tv_sec; |
1464 | vattr.va_atime.ts_nsec = tv[0].tv_usec * 1000; | |
1465 | vattr.va_mtime.ts_sec = tv[1].tv_sec; | |
1466 | vattr.va_mtime.ts_nsec = tv[1].tv_usec * 1000; | |
e62d4143 | 1467 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1468 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
fc2aed1e KM |
1469 | out: |
1470 | vput(vp); | |
8429d022 | 1471 | return (error); |
d67a03eb | 1472 | } |
64d3a787 | 1473 | |
8932276d | 1474 | #if defined(COMPAT_43) || defined(COMPAT_SUNOS) |
4f083fd7 SL |
1475 | /* |
1476 | * Truncate a file given its path name. | |
1477 | */ | |
6a6a1e5f KM |
1478 | /* ARGSUSED */ |
1479 | truncate(p, uap, retval) | |
be320a2b KM |
1480 | struct proc *p; |
1481 | register struct args { | |
1482 | char *fname; | |
1483 | long length; | |
1484 | } *uap; | |
1485 | int *retval; | |
1486 | { | |
1487 | struct nargs { | |
1488 | char *fname; | |
1489 | off_t length; | |
1490 | } nuap; | |
1491 | ||
1492 | nuap.fname = uap->fname; | |
1493 | nuap.length = uap->length; | |
ae9b6dc3 | 1494 | return (__truncate(p, &nuap, retval)); |
be320a2b KM |
1495 | } |
1496 | ||
1497 | /* | |
1498 | * Truncate a file given a file descriptor. | |
1499 | */ | |
1500 | /* ARGSUSED */ | |
1501 | ftruncate(p, uap, retval) | |
1502 | struct proc *p; | |
1503 | register struct args { | |
1504 | int fd; | |
1505 | long length; | |
1506 | } *uap; | |
1507 | int *retval; | |
1508 | { | |
1509 | struct nargs { | |
1510 | int fd; | |
1511 | off_t length; | |
1512 | } nuap; | |
1513 | ||
1514 | nuap.fd = uap->fd; | |
1515 | nuap.length = uap->length; | |
ae9b6dc3 | 1516 | return (__ftruncate(p, &nuap, retval)); |
be320a2b | 1517 | } |
8932276d | 1518 | #endif /* COMPAT_43 || COMPAT_SUNOS */ |
be320a2b KM |
1519 | |
1520 | /* | |
1521 | * Truncate a file given its path name. | |
1522 | */ | |
1523 | /* ARGSUSED */ | |
ae9b6dc3 | 1524 | __truncate(p, uap, retval) |
5e00df3b | 1525 | struct proc *p; |
6a6a1e5f | 1526 | register struct args { |
528f664c | 1527 | char *fname; |
c979c6ce | 1528 | off_t length; |
6a6a1e5f KM |
1529 | } *uap; |
1530 | int *retval; | |
1531 | { | |
9342689a JH |
1532 | USES_VOP_ACCESS; |
1533 | USES_VOP_SETATTR; | |
fc2aed1e KM |
1534 | register struct vnode *vp; |
1535 | struct vattr vattr; | |
1536 | int error; | |
8429d022 | 1537 | struct nameidata nd; |
528f664c | 1538 | |
dd4c01c2 KM |
1539 | NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p); |
1540 | if (error = namei(&nd)) | |
8429d022 | 1541 | return (error); |
dd4c01c2 | 1542 | vp = nd.ni_vp; |
fc2aed1e KM |
1543 | if (vp->v_type == VDIR) { |
1544 | error = EISDIR; | |
1545 | goto out; | |
528f664c | 1546 | } |
d7b2a16c | 1547 | if ((error = vn_writechk(vp)) || |
2c69fe14 | 1548 | (error = VOP_ACCESS(vp, VWRITE, p->p_ucred, p))) |
fc2aed1e | 1549 | goto out; |
3658f091 KB |
1550 | VATTR_NULL(&vattr); |
1551 | vattr.va_size = uap->length; | |
e62d4143 | 1552 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1553 | error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); |
fc2aed1e KM |
1554 | out: |
1555 | vput(vp); | |
8429d022 | 1556 | return (error); |
528f664c SL |
1557 | } |
1558 | ||
4f083fd7 SL |
1559 | /* |
1560 | * Truncate a file given a file descriptor. | |
1561 | */ | |
6a6a1e5f | 1562 | /* ARGSUSED */ |
ae9b6dc3 | 1563 | __ftruncate(p, uap, retval) |
5e00df3b | 1564 | struct proc *p; |
6a6a1e5f | 1565 | register struct args { |
528f664c | 1566 | int fd; |
c979c6ce | 1567 | off_t length; |
6a6a1e5f KM |
1568 | } *uap; |
1569 | int *retval; | |
1570 | { | |
9342689a JH |
1571 | USES_VOP_LOCK; |
1572 | USES_VOP_SETATTR; | |
1573 | USES_VOP_UNLOCK; | |
fc2aed1e KM |
1574 | struct vattr vattr; |
1575 | struct vnode *vp; | |
528f664c | 1576 | struct file *fp; |
fc2aed1e KM |
1577 | int error; |
1578 | ||
5e00df3b | 1579 | if (error = getvnode(p->p_fd, uap->fd, &fp)) |
8429d022 | 1580 | return (error); |
fc2aed1e | 1581 | if ((fp->f_flag & FWRITE) == 0) |
8429d022 | 1582 | return (EINVAL); |
fc2aed1e KM |
1583 | vp = (struct vnode *)fp->f_data; |
1584 | VOP_LOCK(vp); | |
1585 | if (vp->v_type == VDIR) { | |
1586 | error = EISDIR; | |
1587 | goto out; | |
528f664c | 1588 | } |
d7b2a16c | 1589 | if (error = vn_writechk(vp)) |
fc2aed1e | 1590 | goto out; |
3658f091 KB |
1591 | VATTR_NULL(&vattr); |
1592 | vattr.va_size = uap->length; | |
e62d4143 | 1593 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
2c69fe14 | 1594 | error = VOP_SETATTR(vp, &vattr, fp->f_cred, p); |
fc2aed1e KM |
1595 | out: |
1596 | VOP_UNLOCK(vp); | |
8429d022 | 1597 | return (error); |
4f083fd7 SL |
1598 | } |
1599 | ||
1600 | /* | |
1601 | * Synch an open file. | |
1602 | */ | |
6a6a1e5f KM |
1603 | /* ARGSUSED */ |
1604 | fsync(p, uap, retval) | |
5e00df3b | 1605 | struct proc *p; |
6a6a1e5f | 1606 | struct args { |
4f083fd7 | 1607 | int fd; |
6a6a1e5f KM |
1608 | } *uap; |
1609 | int *retval; | |
1610 | { | |
9342689a JH |
1611 | USES_VOP_FSYNC; |
1612 | USES_VOP_LOCK; | |
1613 | USES_VOP_UNLOCK; | |
e79467ea | 1614 | register struct vnode *vp; |
4f083fd7 | 1615 | struct file *fp; |
fc2aed1e | 1616 | int error; |
4f083fd7 | 1617 | |
5e00df3b | 1618 | if (error = getvnode(p->p_fd, uap->fd, &fp)) |
8429d022 | 1619 | return (error); |
e79467ea KM |
1620 | vp = (struct vnode *)fp->f_data; |
1621 | VOP_LOCK(vp); | |
2c69fe14 | 1622 | error = VOP_FSYNC(vp, fp->f_flag, fp->f_cred, MNT_WAIT, p); |
e79467ea | 1623 | VOP_UNLOCK(vp); |
8429d022 | 1624 | return (error); |
528f664c SL |
1625 | } |
1626 | ||
4f083fd7 SL |
1627 | /* |
1628 | * Rename system call. | |
4f083fd7 SL |
1629 | * |
1630 | * Source and destination must either both be directories, or both | |
1631 | * not be directories. If target is a directory, it must be empty. | |
1632 | */ | |
6a6a1e5f KM |
1633 | /* ARGSUSED */ |
1634 | rename(p, uap, retval) | |
5e00df3b | 1635 | struct proc *p; |
6a6a1e5f | 1636 | register struct args { |
528f664c SL |
1637 | char *from; |
1638 | char *to; | |
6a6a1e5f KM |
1639 | } *uap; |
1640 | int *retval; | |
1641 | { | |
9342689a JH |
1642 | USES_VOP_ABORTOP; |
1643 | USES_VOP_RENAME; | |
fc2aed1e | 1644 | register struct vnode *tvp, *fvp, *tdvp; |
5718fad3 | 1645 | struct nameidata fromnd, tond; |
fc2aed1e | 1646 | int error; |
4f083fd7 | 1647 | |
a5368812 | 1648 | CHECKPOINTREF; |
dd4c01c2 KM |
1649 | NDINIT(&fromnd, DELETE, WANTPARENT | SAVESTART, UIO_USERSPACE, |
1650 | uap->from, p); | |
1651 | if (error = namei(&fromnd)) | |
8429d022 | 1652 | return (error); |
5718fad3 | 1653 | fvp = fromnd.ni_vp; |
dd4c01c2 KM |
1654 | NDINIT(&tond, RENAME, LOCKPARENT | LOCKLEAF | NOCACHE | SAVESTART, |
1655 | UIO_USERSPACE, uap->to, p); | |
1656 | if (error = namei(&tond)) { | |
cfef4373 | 1657 | VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd); |
5718fad3 | 1658 | vrele(fromnd.ni_dvp); |
66955caf KM |
1659 | vrele(fvp); |
1660 | goto out1; | |
1661 | } | |
fc2aed1e KM |
1662 | tdvp = tond.ni_dvp; |
1663 | tvp = tond.ni_vp; | |
1664 | if (tvp != NULL) { | |
1665 | if (fvp->v_type == VDIR && tvp->v_type != VDIR) { | |
9259ee95 | 1666 | error = ENOTDIR; |
fc2aed1e KM |
1667 | goto out; |
1668 | } else if (fvp->v_type != VDIR && tvp->v_type == VDIR) { | |
9259ee95 | 1669 | error = EISDIR; |
fc2aed1e | 1670 | goto out; |
a5390dce | 1671 | } |
64d3a787 | 1672 | } |
fe562f32 | 1673 | if (fvp == tdvp) |
fc2aed1e | 1674 | error = EINVAL; |
fe562f32 | 1675 | /* |
5718fad3 KM |
1676 | * If source is the same as the destination (that is the |
1677 | * same inode number with the same name in the same directory), | |
fe562f32 KM |
1678 | * then there is nothing to do. |
1679 | */ | |
5718fad3 | 1680 | if (fvp == tvp && fromnd.ni_dvp == tdvp && |
dd4c01c2 KM |
1681 | fromnd.ni_cnd.cn_namelen == tond.ni_cnd.cn_namelen && |
1682 | !bcmp(fromnd.ni_cnd.cn_nameptr, tond.ni_cnd.cn_nameptr, | |
1683 | fromnd.ni_cnd.cn_namelen)) | |
fe562f32 | 1684 | error = -1; |
fc2aed1e | 1685 | out: |
66955caf | 1686 | if (!error) { |
e62d4143 KM |
1687 | LEASE_CHECK(tdvp, p, p->p_ucred, LEASE_WRITE); |
1688 | if (fromnd.ni_dvp != tdvp) | |
1689 | LEASE_CHECK(fromnd.ni_dvp, p, p->p_ucred, LEASE_WRITE); | |
1690 | if (tvp) | |
1691 | LEASE_CHECK(tvp, p, p->p_ucred, LEASE_WRITE); | |
cfef4373 JH |
1692 | error = VOP_RENAME(fromnd.ni_dvp, fromnd.ni_vp, &fromnd.ni_cnd, |
1693 | tond.ni_dvp, tond.ni_vp, &tond.ni_cnd); | |
66955caf | 1694 | } else { |
cfef4373 | 1695 | VOP_ABORTOP(tond.ni_dvp, &tond.ni_cnd); |
6c44e83b KM |
1696 | if (tdvp == tvp) |
1697 | vrele(tdvp); | |
1698 | else | |
1699 | vput(tdvp); | |
66955caf KM |
1700 | if (tvp) |
1701 | vput(tvp); | |
cfef4373 | 1702 | VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd); |
5718fad3 | 1703 | vrele(fromnd.ni_dvp); |
66955caf | 1704 | vrele(fvp); |
64d3a787 | 1705 | } |
c03959f9 | 1706 | p->p_spare[1]--; |
5718fad3 | 1707 | vrele(tond.ni_startdir); |
dd4c01c2 | 1708 | FREE(tond.ni_cnd.cn_pnbuf, M_NAMEI); |
fc2aed1e | 1709 | out1: |
c03959f9 | 1710 | p->p_spare[1]--; |
5718fad3 | 1711 | vrele(fromnd.ni_startdir); |
dd4c01c2 | 1712 | FREE(fromnd.ni_cnd.cn_pnbuf, M_NAMEI); |
a5368812 | 1713 | CHECKREFS("rename"); |
fe562f32 | 1714 | if (error == -1) |
8429d022 MK |
1715 | return (0); |
1716 | return (error); | |
64d3a787 | 1717 | } |
88a7a62a | 1718 | |
88a7a62a | 1719 | /* |
d4ed1dcd | 1720 | * Mkdir system call. |
88a7a62a | 1721 | */ |
6a6a1e5f KM |
1722 | /* ARGSUSED */ |
1723 | mkdir(p, uap, retval) | |
5e00df3b | 1724 | struct proc *p; |
6a6a1e5f | 1725 | register struct args { |
88a7a62a SL |
1726 | char *name; |
1727 | int dmode; | |
6a6a1e5f KM |
1728 | } *uap; |
1729 | int *retval; | |
1730 | { | |
9342689a JH |
1731 | USES_VOP_ABORTOP; |
1732 | USES_VOP_MKDIR; | |
fc2aed1e KM |
1733 | register struct vnode *vp; |
1734 | struct vattr vattr; | |
1735 | int error; | |
8429d022 | 1736 | struct nameidata nd; |
88a7a62a | 1737 | |
a5368812 | 1738 | CHECKPOINTREF; |
dd4c01c2 KM |
1739 | NDINIT(&nd, CREATE, LOCKPARENT, UIO_USERSPACE, uap->name, p); |
1740 | if (error = namei(&nd)) | |
8429d022 | 1741 | return (error); |
dd4c01c2 | 1742 | vp = nd.ni_vp; |
fc2aed1e | 1743 | if (vp != NULL) { |
dd4c01c2 KM |
1744 | VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); |
1745 | if (nd.ni_dvp == vp) | |
1746 | vrele(nd.ni_dvp); | |
6c44e83b | 1747 | else |
dd4c01c2 | 1748 | vput(nd.ni_dvp); |
66955caf | 1749 | vrele(vp); |
a5368812 | 1750 | CHECKREFS("mkdir1"); |
8429d022 | 1751 | return (EEXIST); |
88a7a62a | 1752 | } |
3ee1461b | 1753 | VATTR_NULL(&vattr); |
fc2aed1e | 1754 | vattr.va_type = VDIR; |
5e00df3b | 1755 | vattr.va_mode = (uap->dmode & 0777) &~ p->p_fd->fd_cmask; |
dd4c01c2 KM |
1756 | LEASE_CHECK(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE); |
1757 | error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr); | |
5dfd04f0 | 1758 | if (!error) |
dd4c01c2 | 1759 | vput(nd.ni_vp); |
a5368812 | 1760 | CHECKREFS("mkdir2"); |
8429d022 | 1761 | return (error); |
88a7a62a SL |
1762 | } |
1763 | ||
1764 | /* | |
1765 | * Rmdir system call. | |
1766 | */ | |
6a6a1e5f KM |
1767 | /* ARGSUSED */ |
1768 | rmdir(p, uap, retval) | |
5e00df3b | 1769 | struct proc *p; |
6a6a1e5f | 1770 | struct args { |
88a7a62a | 1771 | char *name; |
6a6a1e5f KM |
1772 | } *uap; |
1773 | int *retval; | |
1774 | { | |
9342689a JH |
1775 | USES_VOP_ABORTOP; |
1776 | USES_VOP_RMDIR; | |
fc2aed1e KM |
1777 | register struct vnode *vp; |
1778 | int error; | |
8429d022 | 1779 | struct nameidata nd; |
88a7a62a | 1780 | |
a5368812 | 1781 | CHECKPOINTREF; |
dd4c01c2 KM |
1782 | NDINIT(&nd, DELETE, LOCKPARENT | LOCKLEAF, UIO_USERSPACE, uap->name, p); |
1783 | if (error = namei(&nd)) | |
8429d022 | 1784 | return (error); |
dd4c01c2 | 1785 | vp = nd.ni_vp; |
fc2aed1e KM |
1786 | if (vp->v_type != VDIR) { |
1787 | error = ENOTDIR; | |
88a7a62a SL |
1788 | goto out; |
1789 | } | |
1790 | /* | |
fc2aed1e | 1791 | * No rmdir "." please. |
88a7a62a | 1792 | */ |
dd4c01c2 | 1793 | if (nd.ni_dvp == vp) { |
fc2aed1e | 1794 | error = EINVAL; |
88a7a62a SL |
1795 | goto out; |
1796 | } | |
1797 | /* | |
d4ed1dcd | 1798 | * The root of a mounted filesystem cannot be deleted. |
88a7a62a | 1799 | */ |
fc2aed1e KM |
1800 | if (vp->v_flag & VROOT) |
1801 | error = EBUSY; | |
88a7a62a | 1802 | out: |
66955caf | 1803 | if (!error) { |
dd4c01c2 | 1804 | LEASE_CHECK(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE); |
e62d4143 | 1805 | LEASE_CHECK(vp, p, p->p_ucred, LEASE_WRITE); |
dd4c01c2 | 1806 | error = VOP_RMDIR(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd); |
66955caf | 1807 | } else { |
dd4c01c2 KM |
1808 | VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); |
1809 | if (nd.ni_dvp == vp) | |
1810 | vrele(nd.ni_dvp); | |
6c44e83b | 1811 | else |
dd4c01c2 | 1812 | vput(nd.ni_dvp); |
66955caf KM |
1813 | vput(vp); |
1814 | } | |
a5368812 | 1815 | CHECKREFS("rmdir"); |
8429d022 | 1816 | return (error); |
88a7a62a SL |
1817 | } |
1818 | ||
fc2aed1e | 1819 | /* |
d4ed1dcd | 1820 | * Read a block of directory entries in a file system independent format. |
fc2aed1e | 1821 | */ |
6a6a1e5f | 1822 | getdirentries(p, uap, retval) |
5e00df3b | 1823 | struct proc *p; |
6a6a1e5f | 1824 | register struct args { |
fc2aed1e KM |
1825 | int fd; |
1826 | char *buf; | |
1827 | unsigned count; | |
1828 | long *basep; | |
6a6a1e5f KM |
1829 | } *uap; |
1830 | int *retval; | |
1831 | { | |
9342689a JH |
1832 | USES_VOP_LOCK; |
1833 | USES_VOP_READDIR; | |
1834 | USES_VOP_UNLOCK; | |
e79467ea | 1835 | register struct vnode *vp; |
8462a185 | 1836 | struct file *fp; |
fc2aed1e KM |
1837 | struct uio auio; |
1838 | struct iovec aiov; | |
58030ad2 | 1839 | off_t off; |
c242ace6 | 1840 | int error, eofflag; |
fc2aed1e | 1841 | |
5e00df3b | 1842 | if (error = getvnode(p->p_fd, uap->fd, &fp)) |
8429d022 | 1843 | return (error); |
fc2aed1e | 1844 | if ((fp->f_flag & FREAD) == 0) |
8429d022 | 1845 | return (EBADF); |
e79467ea KM |
1846 | vp = (struct vnode *)fp->f_data; |
1847 | if (vp->v_type != VDIR) | |
8429d022 | 1848 | return (EINVAL); |
fc2aed1e KM |
1849 | aiov.iov_base = uap->buf; |
1850 | aiov.iov_len = uap->count; | |
1851 | auio.uio_iov = &aiov; | |
1852 | auio.uio_iovcnt = 1; | |
1853 | auio.uio_rw = UIO_READ; | |
1854 | auio.uio_segflg = UIO_USERSPACE; | |
2c69fe14 | 1855 | auio.uio_procp = p; |
fc2aed1e | 1856 | auio.uio_resid = uap->count; |
e79467ea KM |
1857 | VOP_LOCK(vp); |
1858 | auio.uio_offset = off = fp->f_offset; | |
c242ace6 | 1859 | error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag); |
e79467ea KM |
1860 | fp->f_offset = auio.uio_offset; |
1861 | VOP_UNLOCK(vp); | |
1862 | if (error) | |
8429d022 | 1863 | return (error); |
e79467ea | 1864 | error = copyout((caddr_t)&off, (caddr_t)uap->basep, sizeof(long)); |
6a6a1e5f | 1865 | *retval = uap->count - auio.uio_resid; |
8429d022 | 1866 | return (error); |
88a7a62a SL |
1867 | } |
1868 | ||
1869 | /* | |
d4ed1dcd | 1870 | * Set the mode mask for creation of filesystem nodes. |
88a7a62a | 1871 | */ |
6a6a1e5f KM |
1872 | mode_t |
1873 | umask(p, uap, retval) | |
5e00df3b | 1874 | struct proc *p; |
6a6a1e5f | 1875 | struct args { |
88a7a62a | 1876 | int mask; |
6a6a1e5f KM |
1877 | } *uap; |
1878 | int *retval; | |
1879 | { | |
5e00df3b | 1880 | register struct filedesc *fdp = p->p_fd; |
88a7a62a | 1881 | |
5e00df3b KM |
1882 | *retval = fdp->fd_cmask; |
1883 | fdp->fd_cmask = uap->mask & 07777; | |
8429d022 | 1884 | return (0); |
fc2aed1e KM |
1885 | } |
1886 | ||
b0a98f13 MT |
1887 | /* |
1888 | * Void all references to file by ripping underlying filesystem | |
1889 | * away from vnode. | |
1890 | */ | |
6a6a1e5f KM |
1891 | /* ARGSUSED */ |
1892 | revoke(p, uap, retval) | |
5e00df3b | 1893 | struct proc *p; |
6a6a1e5f | 1894 | register struct args { |
b0a98f13 | 1895 | char *fname; |
6a6a1e5f KM |
1896 | } *uap; |
1897 | int *retval; | |
1898 | { | |
9342689a | 1899 | USES_VOP_GETATTR; |
b0a98f13 MT |
1900 | register struct vnode *vp; |
1901 | struct vattr vattr; | |
1902 | int error; | |
8429d022 | 1903 | struct nameidata nd; |
b0a98f13 | 1904 | |
dd4c01c2 KM |
1905 | NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->fname, p); |
1906 | if (error = namei(&nd)) | |
8429d022 | 1907 | return (error); |
dd4c01c2 | 1908 | vp = nd.ni_vp; |
b0a98f13 MT |
1909 | if (vp->v_type != VCHR && vp->v_type != VBLK) { |
1910 | error = EINVAL; | |
1911 | goto out; | |
1912 | } | |
2c69fe14 | 1913 | if (error = VOP_GETATTR(vp, &vattr, p->p_ucred, p)) |
b0a98f13 | 1914 | goto out; |
8429d022 MK |
1915 | if (p->p_ucred->cr_uid != vattr.va_uid && |
1916 | (error = suser(p->p_ucred, &p->p_acflag))) | |
b0a98f13 | 1917 | goto out; |
8b81d198 | 1918 | if (vp->v_usecount > 1 || (vp->v_flag & VALIASED)) |
c9345cca | 1919 | vgoneall(vp); |
b0a98f13 MT |
1920 | out: |
1921 | vrele(vp); | |
8429d022 | 1922 | return (error); |
b0a98f13 MT |
1923 | } |
1924 | ||
d4ed1dcd KM |
1925 | /* |
1926 | * Convert a user file descriptor to a kernel file entry. | |
1927 | */ | |
5e00df3b KM |
1928 | getvnode(fdp, fdes, fpp) |
1929 | struct filedesc *fdp; | |
fc2aed1e KM |
1930 | struct file **fpp; |
1931 | int fdes; | |
1932 | { | |
1933 | struct file *fp; | |
1934 | ||
8429d022 | 1935 | if ((unsigned)fdes >= fdp->fd_nfiles || |
78eeb014 | 1936 | (fp = fdp->fd_ofiles[fdes]) == NULL) |
fc2aed1e KM |
1937 | return (EBADF); |
1938 | if (fp->f_type != DTYPE_VNODE) | |
1939 | return (EINVAL); | |
1940 | *fpp = fp; | |
1941 | return (0); | |
88a7a62a | 1942 | } |