Commit | Line | Data |
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a2907882 KM |
1 | /* |
2 | * Copyright (c) 1989 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Rick Macklem at The University of Guelph. | |
7 | * | |
dbf0c423 | 8 | * %sccs.include.redist.c% |
a2907882 | 9 | * |
a32db4fc | 10 | * @(#)nfs_vnops.c 7.79 (Berkeley) %G% |
a2907882 KM |
11 | */ |
12 | ||
13 | /* | |
14 | * vnode op calls for sun nfs version 2 | |
15 | */ | |
16 | ||
400a1380 KM |
17 | #include <sys/param.h> |
18 | #include <sys/proc.h> | |
19 | #include <sys/kernel.h> | |
20 | #include <sys/systm.h> | |
21 | #include <sys/mount.h> | |
22 | #include <sys/buf.h> | |
23 | #include <sys/malloc.h> | |
24 | #include <sys/mbuf.h> | |
25 | #include <sys/conf.h> | |
26 | #include <sys/namei.h> | |
27 | #include <sys/vnode.h> | |
28 | #include <sys/specdev.h> | |
29 | #include <sys/fifo.h> | |
30 | #include <sys/map.h> | |
058dee65 | 31 | |
400a1380 KM |
32 | #include <vm/vm.h> |
33 | ||
34 | #include <nfs/rpcv2.h> | |
35 | #include <nfs/nfsv2.h> | |
36 | #include <nfs/nfs.h> | |
37 | #include <nfs/nfsnode.h> | |
38 | #include <nfs/nfsmount.h> | |
39 | #include <nfs/xdr_subs.h> | |
40 | #include <nfs/nfsm_subs.h> | |
41 | #include <nfs/nqnfs.h> | |
a2907882 KM |
42 | |
43 | /* Defs */ | |
44 | #define TRUE 1 | |
45 | #define FALSE 0 | |
46 | ||
26cb2431 KM |
47 | /* |
48 | * Global vfs data structures for nfs | |
49 | */ | |
9342689a JH |
50 | int (**nfsv2_vnodeop_p)(); |
51 | struct vnodeopv_entry_desc nfsv2_vnodeop_entries[] = { | |
52 | { &vop_default_desc, vn_default_error }, | |
53 | { &vop_lookup_desc, nfs_lookup }, /* lookup */ | |
54 | { &vop_create_desc, nfs_create }, /* create */ | |
55 | { &vop_mknod_desc, nfs_mknod }, /* mknod */ | |
56 | { &vop_open_desc, nfs_open }, /* open */ | |
57 | { &vop_close_desc, nfs_close }, /* close */ | |
58 | { &vop_access_desc, nfs_access }, /* access */ | |
59 | { &vop_getattr_desc, nfs_getattr }, /* getattr */ | |
60 | { &vop_setattr_desc, nfs_setattr }, /* setattr */ | |
61 | { &vop_read_desc, nfs_read }, /* read */ | |
62 | { &vop_write_desc, nfs_write }, /* write */ | |
63 | { &vop_ioctl_desc, nfs_ioctl }, /* ioctl */ | |
64 | { &vop_select_desc, nfs_select }, /* select */ | |
65 | { &vop_mmap_desc, nfs_mmap }, /* mmap */ | |
66 | { &vop_fsync_desc, nfs_fsync }, /* fsync */ | |
67 | { &vop_seek_desc, nfs_seek }, /* seek */ | |
68 | { &vop_remove_desc, nfs_remove }, /* remove */ | |
69 | { &vop_link_desc, nfs_link }, /* link */ | |
70 | { &vop_rename_desc, nfs_rename }, /* rename */ | |
71 | { &vop_mkdir_desc, nfs_mkdir }, /* mkdir */ | |
72 | { &vop_rmdir_desc, nfs_rmdir }, /* rmdir */ | |
73 | { &vop_symlink_desc, nfs_symlink }, /* symlink */ | |
74 | { &vop_readdir_desc, nfs_readdir }, /* readdir */ | |
75 | { &vop_readlink_desc, nfs_readlink }, /* readlink */ | |
76 | { &vop_abortop_desc, nfs_abortop }, /* abortop */ | |
77 | { &vop_inactive_desc, nfs_inactive }, /* inactive */ | |
78 | { &vop_reclaim_desc, nfs_reclaim }, /* reclaim */ | |
79 | { &vop_lock_desc, nfs_lock }, /* lock */ | |
80 | { &vop_unlock_desc, nfs_unlock }, /* unlock */ | |
81 | { &vop_bmap_desc, nfs_bmap }, /* bmap */ | |
82 | { &vop_strategy_desc, nfs_strategy }, /* strategy */ | |
83 | { &vop_print_desc, nfs_print }, /* print */ | |
84 | { &vop_islocked_desc, nfs_islocked }, /* islocked */ | |
85 | { &vop_advlock_desc, nfs_advlock }, /* advlock */ | |
86 | { &vop_blkatoff_desc, nfs_blkatoff }, /* blkatoff */ | |
87 | { &vop_vget_desc, nfs_vget }, /* vget */ | |
88 | { &vop_valloc_desc, nfs_valloc }, /* valloc */ | |
89 | { &vop_vfree_desc, nfs_vfree }, /* vfree */ | |
90 | { &vop_truncate_desc, nfs_truncate }, /* truncate */ | |
91 | { &vop_update_desc, nfs_update }, /* update */ | |
4c323403 | 92 | { &vop_bwrite_desc, vn_bwrite }, |
9342689a | 93 | { (struct vnodeop_desc*)NULL, (int(*)())NULL } |
a2907882 | 94 | }; |
9342689a JH |
95 | struct vnodeopv_desc nfsv2_vnodeop_opv_desc = |
96 | { &nfsv2_vnodeop_p, nfsv2_vnodeop_entries }; | |
a2907882 | 97 | |
26cb2431 KM |
98 | /* |
99 | * Special device vnode ops | |
100 | */ | |
9342689a JH |
101 | int (**spec_nfsv2nodeop_p)(); |
102 | struct vnodeopv_entry_desc spec_nfsv2nodeop_entries[] = { | |
103 | { &vop_default_desc, vn_default_error }, | |
104 | { &vop_lookup_desc, spec_lookup }, /* lookup */ | |
105 | { &vop_create_desc, spec_create }, /* create */ | |
106 | { &vop_mknod_desc, spec_mknod }, /* mknod */ | |
107 | { &vop_open_desc, spec_open }, /* open */ | |
9b61ab4a | 108 | { &vop_close_desc, nfsspec_close }, /* close */ |
9342689a JH |
109 | { &vop_access_desc, nfs_access }, /* access */ |
110 | { &vop_getattr_desc, nfs_getattr }, /* getattr */ | |
111 | { &vop_setattr_desc, nfs_setattr }, /* setattr */ | |
9b61ab4a KM |
112 | { &vop_read_desc, nfsspec_read }, /* read */ |
113 | { &vop_write_desc, nfsspec_write }, /* write */ | |
9342689a JH |
114 | { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ |
115 | { &vop_select_desc, spec_select }, /* select */ | |
116 | { &vop_mmap_desc, spec_mmap }, /* mmap */ | |
117 | { &vop_fsync_desc, spec_fsync }, /* fsync */ | |
118 | { &vop_seek_desc, spec_seek }, /* seek */ | |
119 | { &vop_remove_desc, spec_remove }, /* remove */ | |
120 | { &vop_link_desc, spec_link }, /* link */ | |
121 | { &vop_rename_desc, spec_rename }, /* rename */ | |
122 | { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ | |
123 | { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ | |
124 | { &vop_symlink_desc, spec_symlink }, /* symlink */ | |
125 | { &vop_readdir_desc, spec_readdir }, /* readdir */ | |
126 | { &vop_readlink_desc, spec_readlink }, /* readlink */ | |
127 | { &vop_abortop_desc, spec_abortop }, /* abortop */ | |
128 | { &vop_inactive_desc, nfs_inactive }, /* inactive */ | |
129 | { &vop_reclaim_desc, nfs_reclaim }, /* reclaim */ | |
130 | { &vop_lock_desc, nfs_lock }, /* lock */ | |
131 | { &vop_unlock_desc, nfs_unlock }, /* unlock */ | |
132 | { &vop_bmap_desc, spec_bmap }, /* bmap */ | |
133 | { &vop_strategy_desc, spec_strategy }, /* strategy */ | |
134 | { &vop_print_desc, nfs_print }, /* print */ | |
135 | { &vop_islocked_desc, nfs_islocked }, /* islocked */ | |
136 | { &vop_advlock_desc, spec_advlock }, /* advlock */ | |
137 | { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ | |
138 | { &vop_vget_desc, spec_vget }, /* vget */ | |
139 | { &vop_valloc_desc, spec_valloc }, /* valloc */ | |
140 | { &vop_vfree_desc, spec_vfree }, /* vfree */ | |
141 | { &vop_truncate_desc, spec_truncate }, /* truncate */ | |
142 | { &vop_update_desc, nfs_update }, /* update */ | |
4c323403 | 143 | { &vop_bwrite_desc, vn_bwrite }, |
9342689a | 144 | { (struct vnodeop_desc*)NULL, (int(*)())NULL } |
a2907882 | 145 | }; |
9342689a JH |
146 | struct vnodeopv_desc spec_nfsv2nodeop_opv_desc = |
147 | { &spec_nfsv2nodeop_p, spec_nfsv2nodeop_entries }; | |
a2907882 | 148 | |
b2d955e4 | 149 | #ifdef FIFO |
9342689a JH |
150 | int (**fifo_nfsv2nodeop_p)(); |
151 | struct vnodeopv_entry_desc fifo_nfsv2nodeop_entries[] = { | |
152 | { &vop_default_desc, vn_default_error }, | |
153 | { &vop_lookup_desc, fifo_lookup }, /* lookup */ | |
154 | { &vop_create_desc, fifo_create }, /* create */ | |
155 | { &vop_mknod_desc, fifo_mknod }, /* mknod */ | |
156 | { &vop_open_desc, fifo_open }, /* open */ | |
9b61ab4a | 157 | { &vop_close_desc, nfsfifo_close }, /* close */ |
9342689a JH |
158 | { &vop_access_desc, nfs_access }, /* access */ |
159 | { &vop_getattr_desc, nfs_getattr }, /* getattr */ | |
160 | { &vop_setattr_desc, nfs_setattr }, /* setattr */ | |
9b61ab4a KM |
161 | { &vop_read_desc, nfsfifo_read }, /* read */ |
162 | { &vop_write_desc, nfsfifo_write }, /* write */ | |
9342689a JH |
163 | { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ |
164 | { &vop_select_desc, fifo_select }, /* select */ | |
165 | { &vop_mmap_desc, fifo_mmap }, /* mmap */ | |
166 | { &vop_fsync_desc, fifo_fsync }, /* fsync */ | |
167 | { &vop_seek_desc, fifo_seek }, /* seek */ | |
168 | { &vop_remove_desc, fifo_remove }, /* remove */ | |
169 | { &vop_link_desc, fifo_link }, /* link */ | |
170 | { &vop_rename_desc, fifo_rename }, /* rename */ | |
171 | { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ | |
172 | { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ | |
173 | { &vop_symlink_desc, fifo_symlink }, /* symlink */ | |
174 | { &vop_readdir_desc, fifo_readdir }, /* readdir */ | |
175 | { &vop_readlink_desc, fifo_readlink }, /* readlink */ | |
176 | { &vop_abortop_desc, fifo_abortop }, /* abortop */ | |
177 | { &vop_inactive_desc, nfs_inactive }, /* inactive */ | |
178 | { &vop_reclaim_desc, nfs_reclaim }, /* reclaim */ | |
179 | { &vop_lock_desc, nfs_lock }, /* lock */ | |
180 | { &vop_unlock_desc, nfs_unlock }, /* unlock */ | |
181 | { &vop_bmap_desc, fifo_bmap }, /* bmap */ | |
182 | { &vop_strategy_desc, fifo_badop }, /* strategy */ | |
183 | { &vop_print_desc, nfs_print }, /* print */ | |
184 | { &vop_islocked_desc, nfs_islocked }, /* islocked */ | |
185 | { &vop_advlock_desc, fifo_advlock }, /* advlock */ | |
186 | { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ | |
187 | { &vop_vget_desc, fifo_vget }, /* vget */ | |
188 | { &vop_valloc_desc, fifo_valloc }, /* valloc */ | |
189 | { &vop_vfree_desc, fifo_vfree }, /* vfree */ | |
190 | { &vop_truncate_desc, fifo_truncate }, /* truncate */ | |
191 | { &vop_update_desc, nfs_update }, /* update */ | |
4c323403 | 192 | { &vop_bwrite_desc, vn_bwrite }, |
9342689a | 193 | { (struct vnodeop_desc*)NULL, (int(*)())NULL } |
b2d955e4 | 194 | }; |
9342689a JH |
195 | struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc = |
196 | { &fifo_nfsv2nodeop_p, fifo_nfsv2nodeop_entries }; | |
b2d955e4 KM |
197 | #endif /* FIFO */ |
198 | ||
26cb2431 | 199 | /* |
2c5b44a2 | 200 | * Global variables |
26cb2431 | 201 | */ |
a2907882 KM |
202 | extern u_long nfs_procids[NFS_NPROCS]; |
203 | extern u_long nfs_prog, nfs_vers; | |
a2907882 | 204 | extern char nfsiobuf[MAXPHYS+NBPG]; |
9238aa59 | 205 | struct buf nfs_bqueue; /* Queue head for nfsiod's */ |
f0f1cbaa | 206 | struct proc *nfs_iodwant[NFS_MAXASYNCDAEMON]; |
1c89915d | 207 | int nfs_numasync = 0; |
f0a3460e | 208 | #define DIRHDSIZ (sizeof (struct readdir) - (MAXNAMLEN + 1)) |
a2907882 KM |
209 | |
210 | /* | |
211 | * nfs null call from vfs. | |
212 | */ | |
cfef4373 | 213 | int |
2c5b44a2 | 214 | nfs_null(vp, cred, procp) |
a2907882 KM |
215 | struct vnode *vp; |
216 | struct ucred *cred; | |
2c5b44a2 | 217 | struct proc *procp; |
a2907882 | 218 | { |
13576453 | 219 | caddr_t bpos, dpos; |
13576453 KM |
220 | int error = 0; |
221 | struct mbuf *mreq, *mrep, *md, *mb; | |
a2907882 | 222 | |
2c5b44a2 KM |
223 | nfsm_reqhead(vp, NFSPROC_NULL, 0); |
224 | nfsm_request(vp, NFSPROC_NULL, procp, cred); | |
a2907882 KM |
225 | nfsm_reqdone; |
226 | return (error); | |
227 | } | |
228 | ||
229 | /* | |
230 | * nfs access vnode op. | |
231 | * Essentially just get vattr and then imitate iaccess() | |
232 | */ | |
cfef4373 | 233 | int |
9342689a JH |
234 | nfs_access (ap) |
235 | struct vop_access_args *ap; | |
a2907882 | 236 | { |
9342689a | 237 | USES_VOP_GETATTR; |
a2907882 KM |
238 | register struct vattr *vap; |
239 | register gid_t *gp; | |
240 | struct vattr vattr; | |
241 | register int i; | |
242 | int error; | |
243 | ||
244 | /* | |
245 | * If you're the super-user, | |
246 | * you always get access. | |
247 | */ | |
e1b76915 | 248 | if (ap->a_cred->cr_uid == 0) |
a2907882 KM |
249 | return (0); |
250 | vap = &vattr; | |
e1b76915 | 251 | if (error = VOP_GETATTR(ap->a_vp, vap, ap->a_cred, ap->a_p)) |
9238aa59 | 252 | return (error); |
a2907882 KM |
253 | /* |
254 | * Access check is based on only one of owner, group, public. | |
255 | * If not owner, then check group. If not a member of the | |
256 | * group, then check public access. | |
257 | */ | |
e1b76915 JH |
258 | if (ap->a_cred->cr_uid != vap->va_uid) { |
259 | ap->a_mode >>= 3; | |
260 | gp = ap->a_cred->cr_groups; | |
261 | for (i = 0; i < ap->a_cred->cr_ngroups; i++, gp++) | |
a2907882 KM |
262 | if (vap->va_gid == *gp) |
263 | goto found; | |
e1b76915 | 264 | ap->a_mode >>= 3; |
a2907882 KM |
265 | found: |
266 | ; | |
267 | } | |
e1b76915 | 268 | if ((vap->va_mode & ap->a_mode) != 0) |
a2907882 KM |
269 | return (0); |
270 | return (EACCES); | |
271 | } | |
272 | ||
273 | /* | |
274 | * nfs open vnode op | |
275 | * Just check to see if the type is ok | |
2c5b44a2 | 276 | * and that deletion is not in progress. |
a2907882 | 277 | */ |
13576453 | 278 | /* ARGSUSED */ |
cfef4373 | 279 | int |
9342689a JH |
280 | nfs_open (ap) |
281 | struct vop_open_args *ap; | |
a2907882 | 282 | { |
a2907882 | 283 | |
e1b76915 | 284 | if (ap->a_vp->v_type != VREG && ap->a_vp->v_type != VDIR && ap->a_vp->v_type != VLNK) |
a2907882 | 285 | return (EACCES); |
e1b76915 JH |
286 | if ((VFSTONFS(ap->a_vp->v_mount)->nm_flag & NFSMNT_NQNFS) == 0) |
287 | VTONFS(ap->a_vp)->n_attrstamp = 0; /* For Open/Close consistency */ | |
2c5b44a2 | 288 | return (0); |
a2907882 KM |
289 | } |
290 | ||
291 | /* | |
292 | * nfs close vnode op | |
9238aa59 | 293 | * For reg files, invalidate any buffer cache entries. |
a2907882 | 294 | */ |
13576453 | 295 | /* ARGSUSED */ |
cfef4373 | 296 | int |
9342689a JH |
297 | nfs_close (ap) |
298 | struct vop_close_args *ap; | |
a2907882 | 299 | { |
e1b76915 | 300 | register struct nfsnode *np = VTONFS(ap->a_vp); |
ffe6f482 | 301 | int error = 0; |
a2907882 | 302 | |
9b61ab4a KM |
303 | if (ap->a_vp->v_type == VREG) { |
304 | if ((VFSTONFS(ap->a_vp->v_mount)->nm_flag & NFSMNT_NQNFS) == 0 && | |
305 | (np->n_flag & NMODIFIED)) { | |
f0f1cbaa | 306 | np->n_flag &= ~NMODIFIED; |
e1b76915 | 307 | vinvalbuf(ap->a_vp, TRUE); |
f0f1cbaa | 308 | np->n_attrstamp = 0; |
9b61ab4a KM |
309 | } |
310 | if (np->n_flag & NWRITEERR) { | |
311 | np->n_flag &= ~NWRITEERR; | |
312 | error = np->n_error; | |
313 | } | |
9238aa59 | 314 | } |
a2907882 KM |
315 | return (error); |
316 | } | |
317 | ||
318 | /* | |
319 | * nfs getattr call from vfs. | |
320 | */ | |
cfef4373 | 321 | int |
a32db4fc | 322 | nfs_getattr(ap) |
9342689a | 323 | struct vop_getattr_args *ap; |
a2907882 | 324 | { |
a32db4fc KM |
325 | register struct vnode *vp = ap->a_vp; |
326 | register struct nfsnode *np = VTONFS(vp); | |
13576453 | 327 | register caddr_t cp; |
13576453 | 328 | caddr_t bpos, dpos; |
13576453 KM |
329 | int error = 0; |
330 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 | 331 | |
a32db4fc KM |
332 | /* |
333 | * Update local times for special files. | |
334 | */ | |
335 | if (np->n_flag & (NACC | NUPD)) { | |
336 | if (np->n_flag & NACC) | |
337 | np->n_atim = time; | |
338 | if (np->n_flag & NUPD) | |
339 | np->n_mtim = time; | |
340 | np->n_flag |= NCHG; | |
341 | } | |
342 | /* | |
343 | * First look in the cache. | |
344 | */ | |
345 | if (nfs_getattrcache(vp, ap->a_vap) == 0) | |
a2907882 KM |
346 | return (0); |
347 | nfsstats.rpccnt[NFSPROC_GETATTR]++; | |
a32db4fc KM |
348 | nfsm_reqhead(vp, NFSPROC_GETATTR, NFSX_FH); |
349 | nfsm_fhtom(vp); | |
350 | nfsm_request(vp, NFSPROC_GETATTR, ap->a_p, ap->a_cred); | |
351 | nfsm_loadattr(vp, ap->a_vap); | |
a2907882 KM |
352 | nfsm_reqdone; |
353 | return (error); | |
354 | } | |
355 | ||
356 | /* | |
357 | * nfs setattr call. | |
358 | */ | |
cfef4373 | 359 | int |
9342689a JH |
360 | nfs_setattr (ap) |
361 | struct vop_setattr_args *ap; | |
a2907882 | 362 | { |
9238aa59 | 363 | register struct nfsv2_sattr *sp; |
13576453 KM |
364 | register caddr_t cp; |
365 | register long t1; | |
2c5b44a2 KM |
366 | caddr_t bpos, dpos, cp2; |
367 | u_long *tl; | |
13576453 KM |
368 | int error = 0; |
369 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
e1b76915 | 370 | struct nfsnode *np = VTONFS(ap->a_vp); |
2c5b44a2 | 371 | u_quad_t frev; |
a2907882 KM |
372 | |
373 | nfsstats.rpccnt[NFSPROC_SETATTR]++; | |
e1b76915 JH |
374 | nfsm_reqhead(ap->a_vp, NFSPROC_SETATTR, NFSX_FH+NFSX_SATTR); |
375 | nfsm_fhtom(ap->a_vp); | |
9238aa59 | 376 | nfsm_build(sp, struct nfsv2_sattr *, NFSX_SATTR); |
e1b76915 | 377 | if (ap->a_vap->va_mode == 0xffff) |
9238aa59 | 378 | sp->sa_mode = VNOVAL; |
a2907882 | 379 | else |
e1b76915 JH |
380 | sp->sa_mode = vtonfs_mode(ap->a_vp->v_type, ap->a_vap->va_mode); |
381 | if (ap->a_vap->va_uid == 0xffff) | |
9238aa59 | 382 | sp->sa_uid = VNOVAL; |
a2907882 | 383 | else |
e1b76915 JH |
384 | sp->sa_uid = txdr_unsigned(ap->a_vap->va_uid); |
385 | if (ap->a_vap->va_gid == 0xffff) | |
9238aa59 | 386 | sp->sa_gid = VNOVAL; |
a2907882 | 387 | else |
e1b76915 JH |
388 | sp->sa_gid = txdr_unsigned(ap->a_vap->va_gid); |
389 | sp->sa_size = txdr_unsigned(ap->a_vap->va_size); | |
390 | sp->sa_atime.tv_sec = txdr_unsigned(ap->a_vap->va_atime.tv_sec); | |
391 | sp->sa_atime.tv_usec = txdr_unsigned(ap->a_vap->va_flags); | |
392 | txdr_time(&ap->a_vap->va_mtime, &sp->sa_mtime); | |
393 | if (ap->a_vap->va_size != VNOVAL || ap->a_vap->va_mtime.tv_sec != VNOVAL || | |
394 | ap->a_vap->va_atime.tv_sec != VNOVAL) { | |
00b72154 KM |
395 | if (np->n_flag & NMODIFIED) { |
396 | np->n_flag &= ~NMODIFIED; | |
e1b76915 JH |
397 | if (ap->a_vap->va_size == 0) |
398 | vinvalbuf(ap->a_vp, FALSE); | |
1c89915d | 399 | else |
e1b76915 | 400 | vinvalbuf(ap->a_vp, TRUE); |
00b72154 KM |
401 | } |
402 | } | |
e1b76915 JH |
403 | nfsm_request(ap->a_vp, NFSPROC_SETATTR, ap->a_p, ap->a_cred); |
404 | nfsm_loadattr(ap->a_vp, (struct vattr *)0); | |
405 | if ((VFSTONFS(ap->a_vp->v_mount)->nm_flag & NFSMNT_NQNFS) && | |
406 | NQNFS_CKCACHABLE(ap->a_vp, NQL_WRITE)) { | |
2c5b44a2 KM |
407 | nfsm_dissect(tl, u_long *, 2*NFSX_UNSIGNED); |
408 | fxdr_hyper(tl, &frev); | |
409 | if (QUADGT(frev, np->n_brev)) | |
410 | np->n_brev = frev; | |
411 | } | |
a2907882 KM |
412 | nfsm_reqdone; |
413 | return (error); | |
414 | } | |
415 | ||
416 | /* | |
417 | * nfs lookup call, one step at a time... | |
418 | * First look in cache | |
419 | * If not found, unlock the directory nfsnode and do the rpc | |
420 | */ | |
cfef4373 | 421 | int |
9342689a JH |
422 | nfs_lookup (ap) |
423 | struct vop_lookup_args *ap; | |
a2907882 | 424 | { |
9342689a | 425 | USES_VOP_GETATTR; |
a2907882 | 426 | register struct vnode *vdp; |
26cb2431 | 427 | register u_long *tl; |
13576453 KM |
428 | register caddr_t cp; |
429 | register long t1, t2; | |
2c5b44a2 KM |
430 | struct nfsmount *nmp; |
431 | struct nfsnode *tp; | |
13576453 | 432 | caddr_t bpos, dpos, cp2; |
2c5b44a2 | 433 | time_t reqtime; |
13576453 | 434 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; |
a2907882 KM |
435 | struct vnode *newvp; |
436 | long len; | |
437 | nfsv2fh_t *fhp; | |
438 | struct nfsnode *np; | |
cfef4373 | 439 | int lockparent, wantparent, error = 0; |
2c5b44a2 KM |
440 | int nqlflag, cachable; |
441 | u_quad_t frev; | |
a2907882 | 442 | |
e1b76915 JH |
443 | *ap->a_vpp = NULL; |
444 | if (ap->a_dvp->v_type != VDIR) | |
a2907882 | 445 | return (ENOTDIR); |
e1b76915 JH |
446 | lockparent = ap->a_cnp->cn_flags & LOCKPARENT; |
447 | wantparent = ap->a_cnp->cn_flags & (LOCKPARENT|WANTPARENT); | |
448 | nmp = VFSTONFS(ap->a_dvp->v_mount); | |
449 | np = VTONFS(ap->a_dvp); | |
450 | if ((error = cache_lookup(ap->a_dvp, ap->a_vpp, ap->a_cnp)) && error != ENOENT) { | |
9238aa59 RM |
451 | struct vattr vattr; |
452 | int vpid; | |
453 | ||
e1b76915 | 454 | vdp = *ap->a_vpp; |
9238aa59 | 455 | vpid = vdp->v_id; |
a2907882 | 456 | /* |
9238aa59 RM |
457 | * See the comment starting `Step through' in ufs/ufs_lookup.c |
458 | * for an explanation of the locking protocol | |
a2907882 | 459 | */ |
e1b76915 | 460 | if (ap->a_dvp == vdp) { |
36c3043b | 461 | VREF(vdp); |
8a1675f3 | 462 | error = 0; |
2c5b44a2 | 463 | } else |
8a1675f3 | 464 | error = vget(vdp); |
8a1675f3 | 465 | if (!error) { |
8c379a26 | 466 | if (vpid == vdp->v_id) { |
2c5b44a2 | 467 | if (nmp->nm_flag & NFSMNT_NQNFS) { |
e1b76915 | 468 | if (NQNFS_CKCACHABLE(ap->a_dvp, NQL_READ)) { |
2c5b44a2 KM |
469 | if (QUADNE(np->n_lrev, np->n_brev) || |
470 | (np->n_flag & NMODIFIED)) { | |
471 | np->n_direofoffset = 0; | |
e1b76915 | 472 | cache_purge(ap->a_dvp); |
2c5b44a2 | 473 | np->n_flag &= ~NMODIFIED; |
e1b76915 | 474 | vinvalbuf(ap->a_dvp, FALSE); |
2c5b44a2 KM |
475 | np->n_brev = np->n_lrev; |
476 | } else { | |
477 | nfsstats.lookupcache_hits++; | |
e1b76915 JH |
478 | if (ap->a_cnp->cn_nameiop != LOOKUP && |
479 | (ap->a_cnp->cn_flags&ISLASTCN)) | |
480 | ap->a_cnp->cn_flags |= SAVENAME; | |
2c5b44a2 KM |
481 | return (0); |
482 | } | |
483 | } | |
e1b76915 | 484 | } else if (!VOP_GETATTR(vdp, &vattr, ap->a_cnp->cn_cred, ap->a_cnp->cn_proc) && |
8c379a26 | 485 | vattr.va_ctime.tv_sec == VTONFS(vdp)->n_ctime) { |
8a1675f3 | 486 | nfsstats.lookupcache_hits++; |
e1b76915 JH |
487 | if (ap->a_cnp->cn_nameiop != LOOKUP && (ap->a_cnp->cn_flags&ISLASTCN)) |
488 | ap->a_cnp->cn_flags |= SAVENAME; | |
8a1675f3 | 489 | return (0); |
8c379a26 | 490 | } |
58055488 | 491 | cache_purge(vdp); |
8a1675f3 | 492 | } |
2c5b44a2 | 493 | vrele(vdp); |
9238aa59 | 494 | } |
e1b76915 | 495 | *ap->a_vpp = NULLVP; |
2c5b44a2 | 496 | } |
ffe6f482 | 497 | error = 0; |
a2907882 | 498 | nfsstats.lookupcache_misses++; |
a2907882 | 499 | nfsstats.rpccnt[NFSPROC_LOOKUP]++; |
e1b76915 JH |
500 | len = ap->a_cnp->cn_namelen; |
501 | nfsm_reqhead(ap->a_dvp, NFSPROC_LOOKUP, NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(len)); | |
2c5b44a2 KM |
502 | |
503 | /* | |
504 | * For nqnfs optionally piggyback a getlease request for the name | |
505 | * being looked up. | |
506 | */ | |
507 | if (nmp->nm_flag & NFSMNT_NQNFS) { | |
508 | if ((nmp->nm_flag & NFSMNT_NQLOOKLEASE) && | |
e1b76915 | 509 | ((ap->a_cnp->cn_flags&MAKEENTRY) && (ap->a_cnp->cn_nameiop != DELETE || !(ap->a_cnp->cn_flags&ISLASTCN)))) { |
2c5b44a2 KM |
510 | nfsm_build(tl, u_long *, 2*NFSX_UNSIGNED); |
511 | *tl++ = txdr_unsigned(NQL_READ); | |
512 | *tl = txdr_unsigned(nmp->nm_leaseterm); | |
513 | } else { | |
514 | nfsm_build(tl, u_long *, NFSX_UNSIGNED); | |
515 | *tl = 0; | |
516 | } | |
517 | } | |
e1b76915 JH |
518 | nfsm_fhtom(ap->a_dvp); |
519 | nfsm_strtom(ap->a_cnp->cn_nameptr, len, NFS_MAXNAMLEN); | |
2c5b44a2 | 520 | reqtime = time.tv_sec; |
e1b76915 | 521 | nfsm_request(ap->a_dvp, NFSPROC_LOOKUP, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); |
a2907882 KM |
522 | nfsmout: |
523 | if (error) { | |
e1b76915 JH |
524 | if ((ap->a_cnp->cn_nameiop == CREATE || ap->a_cnp->cn_nameiop == RENAME) && |
525 | (ap->a_cnp->cn_flags & ISLASTCN) && error == ENOENT) | |
44c7c48c | 526 | error = EJUSTRETURN; |
e1b76915 JH |
527 | if (ap->a_cnp->cn_nameiop != LOOKUP && (ap->a_cnp->cn_flags&ISLASTCN)) |
528 | ap->a_cnp->cn_flags |= SAVENAME; | |
b2f2eab2 | 529 | return (error); |
a2907882 | 530 | } |
2c5b44a2 KM |
531 | if (nmp->nm_flag & NFSMNT_NQNFS) { |
532 | nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); | |
533 | if (*tl) { | |
534 | nqlflag = fxdr_unsigned(int, *tl); | |
535 | nfsm_dissect(tl, u_long *, 4*NFSX_UNSIGNED); | |
536 | cachable = fxdr_unsigned(int, *tl++); | |
537 | reqtime += fxdr_unsigned(int, *tl++); | |
538 | fxdr_hyper(tl, &frev); | |
539 | } else | |
540 | nqlflag = 0; | |
541 | } | |
542 | nfsm_dissect(fhp, nfsv2fh_t *, NFSX_FH); | |
a2907882 KM |
543 | |
544 | /* | |
2c5b44a2 | 545 | * Handle RENAME case... |
a2907882 | 546 | */ |
e1b76915 | 547 | if (ap->a_cnp->cn_nameiop == RENAME && wantparent && (ap->a_cnp->cn_flags&ISLASTCN)) { |
2c5b44a2 | 548 | if (!bcmp(np->n_fh.fh_bytes, (caddr_t)fhp, NFSX_FH)) { |
a2907882 KM |
549 | m_freem(mrep); |
550 | return (EISDIR); | |
551 | } | |
e1b76915 | 552 | if (error = nfs_nget(ap->a_dvp->v_mount, fhp, &np)) { |
a2907882 KM |
553 | m_freem(mrep); |
554 | return (error); | |
555 | } | |
556 | newvp = NFSTOV(np); | |
f67785e5 KM |
557 | if (error = |
558 | nfs_loadattrcache(&newvp, &md, &dpos, (struct vattr *)0)) { | |
2c5b44a2 | 559 | vrele(newvp); |
a2907882 KM |
560 | m_freem(mrep); |
561 | return (error); | |
562 | } | |
e1b76915 | 563 | *ap->a_vpp = newvp; |
f5dffb64 | 564 | m_freem(mrep); |
e1b76915 | 565 | ap->a_cnp->cn_flags |= SAVENAME; |
a2907882 KM |
566 | return (0); |
567 | } | |
568 | ||
2c5b44a2 | 569 | if (!bcmp(np->n_fh.fh_bytes, (caddr_t)fhp, NFSX_FH)) { |
e1b76915 JH |
570 | VREF(ap->a_dvp); |
571 | newvp = ap->a_dvp; | |
a2907882 | 572 | } else { |
e1b76915 | 573 | if (error = nfs_nget(ap->a_dvp->v_mount, fhp, &np)) { |
a2907882 KM |
574 | m_freem(mrep); |
575 | return (error); | |
576 | } | |
577 | newvp = NFSTOV(np); | |
578 | } | |
f67785e5 | 579 | if (error = nfs_loadattrcache(&newvp, &md, &dpos, (struct vattr *)0)) { |
2c5b44a2 | 580 | vrele(newvp); |
a2907882 KM |
581 | m_freem(mrep); |
582 | return (error); | |
583 | } | |
584 | m_freem(mrep); | |
e1b76915 JH |
585 | *ap->a_vpp = newvp; |
586 | if (ap->a_cnp->cn_nameiop != LOOKUP && (ap->a_cnp->cn_flags&ISLASTCN)) | |
587 | ap->a_cnp->cn_flags |= SAVENAME; | |
588 | if ((ap->a_cnp->cn_flags&MAKEENTRY) && (ap->a_cnp->cn_nameiop != DELETE || !(ap->a_cnp->cn_flags&ISLASTCN))) { | |
2c5b44a2 KM |
589 | if ((nmp->nm_flag & NFSMNT_NQNFS) == 0) |
590 | np->n_ctime = np->n_vattr.va_ctime.tv_sec; | |
591 | else if (nqlflag && reqtime > time.tv_sec) { | |
592 | if (np->n_tnext) { | |
593 | if (np->n_tnext == (struct nfsnode *)nmp) | |
594 | nmp->nm_tprev = np->n_tprev; | |
595 | else | |
596 | np->n_tnext->n_tprev = np->n_tprev; | |
597 | if (np->n_tprev == (struct nfsnode *)nmp) | |
598 | nmp->nm_tnext = np->n_tnext; | |
599 | else | |
600 | np->n_tprev->n_tnext = np->n_tnext; | |
601 | if (nqlflag == NQL_WRITE) | |
602 | np->n_flag |= NQNFSWRITE; | |
603 | } else if (nqlflag == NQL_READ) | |
604 | np->n_flag &= ~NQNFSWRITE; | |
605 | else | |
606 | np->n_flag |= NQNFSWRITE; | |
607 | if (cachable) | |
608 | np->n_flag &= ~NQNFSNONCACHE; | |
609 | else | |
610 | np->n_flag |= NQNFSNONCACHE; | |
611 | np->n_expiry = reqtime; | |
612 | np->n_lrev = frev; | |
613 | tp = nmp->nm_tprev; | |
614 | while (tp != (struct nfsnode *)nmp && tp->n_expiry > np->n_expiry) | |
615 | tp = tp->n_tprev; | |
616 | if (tp == (struct nfsnode *)nmp) { | |
617 | np->n_tnext = nmp->nm_tnext; | |
618 | nmp->nm_tnext = np; | |
619 | } else { | |
620 | np->n_tnext = tp->n_tnext; | |
621 | tp->n_tnext = np; | |
622 | } | |
623 | np->n_tprev = tp; | |
624 | if (np->n_tnext == (struct nfsnode *)nmp) | |
625 | nmp->nm_tprev = np; | |
626 | else | |
627 | np->n_tnext->n_tprev = np; | |
628 | } | |
e1b76915 | 629 | cache_enter(ap->a_dvp, *ap->a_vpp, ap->a_cnp); |
8c379a26 | 630 | } |
2c5b44a2 | 631 | return (0); |
a2907882 KM |
632 | } |
633 | ||
f0f1cbaa KM |
634 | /* |
635 | * nfs read call. | |
636 | * Just call nfs_bioread() to do the work. | |
637 | */ | |
cfef4373 | 638 | int |
9342689a JH |
639 | nfs_read (ap) |
640 | struct vop_read_args *ap; | |
f0f1cbaa | 641 | { |
e1b76915 | 642 | if (ap->a_vp->v_type != VREG) |
f0f1cbaa | 643 | return (EPERM); |
e1b76915 | 644 | return (nfs_bioread(ap->a_vp, ap->a_uio, ap->a_ioflag, ap->a_cred)); |
f0f1cbaa KM |
645 | } |
646 | ||
a2907882 KM |
647 | /* |
648 | * nfs readlink call | |
649 | */ | |
cfef4373 | 650 | int |
9342689a JH |
651 | nfs_readlink (ap) |
652 | struct vop_readlink_args *ap; | |
f0f1cbaa | 653 | { |
e1b76915 | 654 | if (ap->a_vp->v_type != VLNK) |
f0f1cbaa | 655 | return (EPERM); |
e1b76915 | 656 | return (nfs_bioread(ap->a_vp, ap->a_uio, 0, ap->a_cred)); |
f0f1cbaa KM |
657 | } |
658 | ||
659 | /* | |
660 | * Do a readlink rpc. | |
661 | * Called by nfs_doio() from below the buffer cache. | |
662 | */ | |
cfef4373 | 663 | int |
26cb2431 | 664 | nfs_readlinkrpc(vp, uiop, cred) |
13576453 | 665 | register struct vnode *vp; |
a2907882 KM |
666 | struct uio *uiop; |
667 | struct ucred *cred; | |
668 | { | |
26cb2431 | 669 | register u_long *tl; |
13576453 KM |
670 | register caddr_t cp; |
671 | register long t1; | |
672 | caddr_t bpos, dpos, cp2; | |
13576453 KM |
673 | int error = 0; |
674 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 KM |
675 | long len; |
676 | ||
677 | nfsstats.rpccnt[NFSPROC_READLINK]++; | |
2c5b44a2 | 678 | nfsm_reqhead(vp, NFSPROC_READLINK, NFSX_FH); |
a2907882 | 679 | nfsm_fhtom(vp); |
2c5b44a2 | 680 | nfsm_request(vp, NFSPROC_READLINK, uiop->uio_procp, cred); |
a2907882 KM |
681 | nfsm_strsiz(len, NFS_MAXPATHLEN); |
682 | nfsm_mtouio(uiop, len); | |
683 | nfsm_reqdone; | |
684 | return (error); | |
685 | } | |
686 | ||
687 | /* | |
f0f1cbaa KM |
688 | * nfs read rpc call |
689 | * Ditto above | |
a2907882 | 690 | */ |
cfef4373 | 691 | int |
26cb2431 | 692 | nfs_readrpc(vp, uiop, cred) |
13576453 | 693 | register struct vnode *vp; |
a2907882 | 694 | struct uio *uiop; |
a2907882 KM |
695 | struct ucred *cred; |
696 | { | |
26cb2431 | 697 | register u_long *tl; |
13576453 KM |
698 | register caddr_t cp; |
699 | register long t1; | |
700 | caddr_t bpos, dpos, cp2; | |
13576453 KM |
701 | int error = 0; |
702 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 KM |
703 | struct nfsmount *nmp; |
704 | long len, retlen, tsiz; | |
705 | ||
54fb9dc2 | 706 | nmp = VFSTONFS(vp->v_mount); |
a2907882 | 707 | tsiz = uiop->uio_resid; |
a2907882 KM |
708 | while (tsiz > 0) { |
709 | nfsstats.rpccnt[NFSPROC_READ]++; | |
710 | len = (tsiz > nmp->nm_rsize) ? nmp->nm_rsize : tsiz; | |
2c5b44a2 | 711 | nfsm_reqhead(vp, NFSPROC_READ, NFSX_FH+NFSX_UNSIGNED*3); |
a2907882 | 712 | nfsm_fhtom(vp); |
26cb2431 KM |
713 | nfsm_build(tl, u_long *, NFSX_UNSIGNED*3); |
714 | *tl++ = txdr_unsigned(uiop->uio_offset); | |
715 | *tl++ = txdr_unsigned(len); | |
716 | *tl = 0; | |
2c5b44a2 | 717 | nfsm_request(vp, NFSPROC_READ, uiop->uio_procp, cred); |
a2907882 KM |
718 | nfsm_loadattr(vp, (struct vattr *)0); |
719 | nfsm_strsiz(retlen, nmp->nm_rsize); | |
720 | nfsm_mtouio(uiop, retlen); | |
721 | m_freem(mrep); | |
a2907882 KM |
722 | if (retlen < len) |
723 | tsiz = 0; | |
724 | else | |
725 | tsiz -= len; | |
726 | } | |
727 | nfsmout: | |
a2907882 KM |
728 | return (error); |
729 | } | |
730 | ||
731 | /* | |
732 | * nfs write call | |
733 | */ | |
cfef4373 | 734 | int |
26cb2431 | 735 | nfs_writerpc(vp, uiop, cred) |
13576453 | 736 | register struct vnode *vp; |
a2907882 | 737 | struct uio *uiop; |
a2907882 KM |
738 | struct ucred *cred; |
739 | { | |
26cb2431 | 740 | register u_long *tl; |
13576453 KM |
741 | register caddr_t cp; |
742 | register long t1; | |
2c5b44a2 | 743 | caddr_t bpos, dpos, cp2; |
13576453 KM |
744 | int error = 0; |
745 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 | 746 | struct nfsmount *nmp; |
2c5b44a2 KM |
747 | struct nfsnode *np = VTONFS(vp); |
748 | u_quad_t frev; | |
a2907882 | 749 | long len, tsiz; |
a2907882 | 750 | |
54fb9dc2 | 751 | nmp = VFSTONFS(vp->v_mount); |
a2907882 | 752 | tsiz = uiop->uio_resid; |
a2907882 KM |
753 | while (tsiz > 0) { |
754 | nfsstats.rpccnt[NFSPROC_WRITE]++; | |
755 | len = (tsiz > nmp->nm_wsize) ? nmp->nm_wsize : tsiz; | |
2c5b44a2 KM |
756 | nfsm_reqhead(vp, NFSPROC_WRITE, |
757 | NFSX_FH+NFSX_UNSIGNED*4+nfsm_rndup(len)); | |
a2907882 | 758 | nfsm_fhtom(vp); |
26cb2431 KM |
759 | nfsm_build(tl, u_long *, NFSX_UNSIGNED*4); |
760 | *(tl+1) = txdr_unsigned(uiop->uio_offset); | |
761 | *(tl+3) = txdr_unsigned(len); | |
a2907882 | 762 | nfsm_uiotom(uiop, len); |
2c5b44a2 | 763 | nfsm_request(vp, NFSPROC_WRITE, uiop->uio_procp, cred); |
a2907882 | 764 | nfsm_loadattr(vp, (struct vattr *)0); |
2c5b44a2 KM |
765 | if (nmp->nm_flag & NFSMNT_MYWRITE) |
766 | VTONFS(vp)->n_mtime = VTONFS(vp)->n_vattr.va_mtime.tv_sec; | |
767 | else if ((nmp->nm_flag & NFSMNT_NQNFS) && | |
768 | NQNFS_CKCACHABLE(vp, NQL_WRITE)) { | |
769 | nfsm_dissect(tl, u_long *, 2*NFSX_UNSIGNED); | |
770 | fxdr_hyper(tl, &frev); | |
771 | if (QUADGT(frev, np->n_brev)) | |
772 | np->n_brev = frev; | |
773 | } | |
a2907882 KM |
774 | m_freem(mrep); |
775 | tsiz -= len; | |
a2907882 KM |
776 | } |
777 | nfsmout: | |
2c5b44a2 KM |
778 | if (error) |
779 | uiop->uio_resid = tsiz; | |
a2907882 KM |
780 | return (error); |
781 | } | |
782 | ||
f67785e5 KM |
783 | /* |
784 | * nfs mknod call | |
7c15c5df KM |
785 | * This is a kludge. Use a create rpc but with the IFMT bits of the mode |
786 | * set to specify the file type and the size field for rdev. | |
f67785e5 KM |
787 | */ |
788 | /* ARGSUSED */ | |
cfef4373 | 789 | int |
9342689a JH |
790 | nfs_mknod (ap) |
791 | struct vop_mknod_args *ap; | |
f67785e5 | 792 | { |
9342689a | 793 | USES_VOP_ABORTOP; |
7c15c5df | 794 | register struct nfsv2_sattr *sp; |
26cb2431 | 795 | register u_long *tl; |
7c15c5df | 796 | register caddr_t cp; |
2c5b44a2 | 797 | register long t2; |
7c15c5df | 798 | caddr_t bpos, dpos; |
7c15c5df KM |
799 | int error = 0; |
800 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
801 | u_long rdev; | |
f67785e5 | 802 | |
e1b76915 JH |
803 | if (ap->a_vap->va_type == VCHR || ap->a_vap->va_type == VBLK) |
804 | rdev = txdr_unsigned(ap->a_vap->va_rdev); | |
7c15c5df | 805 | #ifdef FIFO |
e1b76915 | 806 | else if (ap->a_vap->va_type == VFIFO) |
7c15c5df KM |
807 | rdev = 0xffffffff; |
808 | #endif /* FIFO */ | |
809 | else { | |
e1b76915 JH |
810 | VOP_ABORTOP(ap->a_dvp, ap->a_cnp); |
811 | vput(ap->a_dvp); | |
7c15c5df KM |
812 | return (EOPNOTSUPP); |
813 | } | |
814 | nfsstats.rpccnt[NFSPROC_CREATE]++; | |
e1b76915 JH |
815 | nfsm_reqhead(ap->a_dvp, NFSPROC_CREATE, |
816 | NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(ap->a_cnp->cn_namelen)+NFSX_SATTR); | |
817 | nfsm_fhtom(ap->a_dvp); | |
818 | nfsm_strtom(ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen, NFS_MAXNAMLEN); | |
7c15c5df | 819 | nfsm_build(sp, struct nfsv2_sattr *, NFSX_SATTR); |
e1b76915 JH |
820 | sp->sa_mode = vtonfs_mode(ap->a_vap->va_type, ap->a_vap->va_mode); |
821 | sp->sa_uid = txdr_unsigned(ap->a_cnp->cn_cred->cr_uid); | |
822 | sp->sa_gid = txdr_unsigned(ap->a_cnp->cn_cred->cr_gid); | |
7c15c5df KM |
823 | sp->sa_size = rdev; |
824 | /* or should these be VNOVAL ?? */ | |
e1b76915 JH |
825 | txdr_time(&ap->a_vap->va_atime, &sp->sa_atime); |
826 | txdr_time(&ap->a_vap->va_mtime, &sp->sa_mtime); | |
827 | nfsm_request(ap->a_dvp, NFSPROC_CREATE, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
7c15c5df | 828 | nfsm_reqdone; |
e1b76915 JH |
829 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); |
830 | VTONFS(ap->a_dvp)->n_flag |= NMODIFIED; | |
831 | vrele(ap->a_dvp); | |
7c15c5df | 832 | return (error); |
f67785e5 KM |
833 | } |
834 | ||
a2907882 KM |
835 | /* |
836 | * nfs file create call | |
837 | */ | |
cfef4373 | 838 | int |
9342689a JH |
839 | nfs_create (ap) |
840 | struct vop_create_args *ap; | |
a2907882 | 841 | { |
9238aa59 | 842 | register struct nfsv2_sattr *sp; |
26cb2431 | 843 | register u_long *tl; |
13576453 KM |
844 | register caddr_t cp; |
845 | register long t1, t2; | |
846 | caddr_t bpos, dpos, cp2; | |
13576453 KM |
847 | int error = 0; |
848 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 KM |
849 | |
850 | nfsstats.rpccnt[NFSPROC_CREATE]++; | |
e1b76915 JH |
851 | nfsm_reqhead(ap->a_dvp, NFSPROC_CREATE, |
852 | NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(ap->a_cnp->cn_namelen)+NFSX_SATTR); | |
853 | nfsm_fhtom(ap->a_dvp); | |
854 | nfsm_strtom(ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen, NFS_MAXNAMLEN); | |
9238aa59 | 855 | nfsm_build(sp, struct nfsv2_sattr *, NFSX_SATTR); |
e1b76915 JH |
856 | sp->sa_mode = vtonfs_mode(ap->a_vap->va_type, ap->a_vap->va_mode); |
857 | sp->sa_uid = txdr_unsigned(ap->a_cnp->cn_cred->cr_uid); | |
858 | sp->sa_gid = txdr_unsigned(ap->a_cnp->cn_cred->cr_gid); | |
9238aa59 | 859 | sp->sa_size = txdr_unsigned(0); |
a2907882 | 860 | /* or should these be VNOVAL ?? */ |
e1b76915 JH |
861 | txdr_time(&ap->a_vap->va_atime, &sp->sa_atime); |
862 | txdr_time(&ap->a_vap->va_mtime, &sp->sa_mtime); | |
863 | nfsm_request(ap->a_dvp, NFSPROC_CREATE, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
864 | nfsm_mtofh(ap->a_dvp, *ap->a_vpp); | |
a2907882 | 865 | nfsm_reqdone; |
e1b76915 JH |
866 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); |
867 | VTONFS(ap->a_dvp)->n_flag |= NMODIFIED; | |
868 | vrele(ap->a_dvp); | |
a2907882 KM |
869 | return (error); |
870 | } | |
871 | ||
872 | /* | |
873 | * nfs file remove call | |
f0f1cbaa KM |
874 | * To try and make nfs semantics closer to ufs semantics, a file that has |
875 | * other processes using the vnode is renamed instead of removed and then | |
ffe6f482 | 876 | * removed later on the last close. |
f0f1cbaa | 877 | * - If v_usecount > 1 |
ffe6f482 KM |
878 | * If a rename is not already in the works |
879 | * call nfs_sillyrename() to set it up | |
880 | * else | |
881 | * do the remove rpc | |
a2907882 | 882 | */ |
cfef4373 | 883 | int |
9342689a JH |
884 | nfs_remove (ap) |
885 | struct vop_remove_args *ap; | |
a2907882 | 886 | { |
e1b76915 | 887 | register struct nfsnode *np = VTONFS(ap->a_vp); |
26cb2431 | 888 | register u_long *tl; |
13576453 | 889 | register caddr_t cp; |
2c5b44a2 | 890 | register long t2; |
13576453 | 891 | caddr_t bpos, dpos; |
13576453 KM |
892 | int error = 0; |
893 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 | 894 | |
e1b76915 | 895 | if (ap->a_vp->v_usecount > 1) { |
ffe6f482 | 896 | if (!np->n_sillyrename) |
e1b76915 | 897 | error = nfs_sillyrename(ap->a_dvp, ap->a_vp, ap->a_cnp); |
ffe6f482 | 898 | } else { |
2c5b44a2 KM |
899 | /* |
900 | * Purge the name cache so that the chance of a lookup for | |
901 | * the name succeeding while the remove is in progress is | |
902 | * minimized. Without node locking it can still happen, such | |
903 | * that an I/O op returns ESTALE, but since you get this if | |
904 | * another host removes the file.. | |
905 | */ | |
e1b76915 | 906 | cache_purge(ap->a_vp); |
2c5b44a2 KM |
907 | /* |
908 | * Throw away biocache buffers. Mainly to avoid | |
909 | * unnecessary delayed writes. | |
910 | */ | |
e1b76915 | 911 | vinvalbuf(ap->a_vp, FALSE); |
2c5b44a2 | 912 | /* Do the rpc */ |
a2907882 | 913 | nfsstats.rpccnt[NFSPROC_REMOVE]++; |
e1b76915 JH |
914 | nfsm_reqhead(ap->a_dvp, NFSPROC_REMOVE, |
915 | NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(ap->a_cnp->cn_namelen)); | |
916 | nfsm_fhtom(ap->a_dvp); | |
917 | nfsm_strtom(ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen, NFS_MAXNAMLEN); | |
918 | nfsm_request(ap->a_dvp, NFSPROC_REMOVE, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
a2907882 | 919 | nfsm_reqdone; |
e1b76915 JH |
920 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); |
921 | VTONFS(ap->a_dvp)->n_flag |= NMODIFIED; | |
e8540f59 KM |
922 | /* |
923 | * Kludge City: If the first reply to the remove rpc is lost.. | |
924 | * the reply to the retransmitted request will be ENOENT | |
925 | * since the file was in fact removed | |
926 | * Therefore, we cheat and return success. | |
927 | */ | |
928 | if (error == ENOENT) | |
929 | error = 0; | |
a2907882 | 930 | } |
86dea069 | 931 | np->n_attrstamp = 0; |
e1b76915 JH |
932 | vrele(ap->a_dvp); |
933 | vrele(ap->a_vp); | |
a2907882 KM |
934 | return (error); |
935 | } | |
936 | ||
937 | /* | |
938 | * nfs file remove rpc called from nfs_inactive | |
939 | */ | |
cfef4373 | 940 | int |
2c5b44a2 | 941 | nfs_removeit(sp, procp) |
a9b4ecb2 | 942 | register struct sillyrename *sp; |
2c5b44a2 | 943 | struct proc *procp; |
a2907882 | 944 | { |
26cb2431 | 945 | register u_long *tl; |
13576453 | 946 | register caddr_t cp; |
2c5b44a2 | 947 | register long t2; |
13576453 | 948 | caddr_t bpos, dpos; |
13576453 KM |
949 | int error = 0; |
950 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 KM |
951 | |
952 | nfsstats.rpccnt[NFSPROC_REMOVE]++; | |
2c5b44a2 | 953 | nfsm_reqhead(sp->s_dvp, NFSPROC_REMOVE, |
a9b4ecb2 KM |
954 | NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(sp->s_namlen)); |
955 | nfsm_fhtom(sp->s_dvp); | |
956 | nfsm_strtom(sp->s_name, sp->s_namlen, NFS_MAXNAMLEN); | |
2c5b44a2 | 957 | nfsm_request(sp->s_dvp, NFSPROC_REMOVE, procp, sp->s_cred); |
a2907882 | 958 | nfsm_reqdone; |
a9b4ecb2 | 959 | VTONFS(sp->s_dvp)->n_flag |= NMODIFIED; |
a2907882 KM |
960 | return (error); |
961 | } | |
962 | ||
963 | /* | |
964 | * nfs file rename call | |
965 | */ | |
cfef4373 | 966 | int |
9342689a JH |
967 | nfs_rename (ap) |
968 | struct vop_rename_args *ap; | |
a2907882 | 969 | { |
26cb2431 | 970 | register u_long *tl; |
13576453 | 971 | register caddr_t cp; |
2c5b44a2 | 972 | register long t2; |
13576453 | 973 | caddr_t bpos, dpos; |
13576453 KM |
974 | int error = 0; |
975 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 | 976 | |
73e2cfb7 JSP |
977 | /* Check for cross-device rename */ |
978 | if ((ap->a_fvp->v_mount != ap->a_tdvp->v_mount) || | |
979 | (ap->a_tvp && (ap->a_fvp->v_mount != ap->a_tvp->v_mount))) { | |
980 | error = EXDEV; | |
981 | goto out; | |
982 | } | |
983 | ||
984 | ||
a2907882 | 985 | nfsstats.rpccnt[NFSPROC_RENAME]++; |
e1b76915 JH |
986 | nfsm_reqhead(ap->a_fdvp, NFSPROC_RENAME, |
987 | (NFSX_FH+NFSX_UNSIGNED)*2+nfsm_rndup(ap->a_fcnp->cn_namelen)+ | |
988 | nfsm_rndup(ap->a_fcnp->cn_namelen)); /* or ap->a_fcnp->cn_cred?*/ | |
989 | nfsm_fhtom(ap->a_fdvp); | |
990 | nfsm_strtom(ap->a_fcnp->cn_nameptr, ap->a_fcnp->cn_namelen, NFS_MAXNAMLEN); | |
991 | nfsm_fhtom(ap->a_tdvp); | |
992 | nfsm_strtom(ap->a_tcnp->cn_nameptr, ap->a_tcnp->cn_namelen, NFS_MAXNAMLEN); | |
993 | nfsm_request(ap->a_fdvp, NFSPROC_RENAME, ap->a_tcnp->cn_proc, ap->a_tcnp->cn_cred); | |
a2907882 | 994 | nfsm_reqdone; |
e1b76915 JH |
995 | VTONFS(ap->a_fdvp)->n_flag |= NMODIFIED; |
996 | VTONFS(ap->a_tdvp)->n_flag |= NMODIFIED; | |
997 | if (ap->a_fvp->v_type == VDIR) { | |
998 | if (ap->a_tvp != NULL && ap->a_tvp->v_type == VDIR) | |
999 | cache_purge(ap->a_tdvp); | |
1000 | cache_purge(ap->a_fdvp); | |
a2907882 | 1001 | } |
73e2cfb7 | 1002 | out: |
e1b76915 JH |
1003 | if (ap->a_tdvp == ap->a_tvp) |
1004 | vrele(ap->a_tdvp); | |
639383fa | 1005 | else |
e1b76915 JH |
1006 | vput(ap->a_tdvp); |
1007 | if (ap->a_tvp) | |
1008 | vput(ap->a_tvp); | |
1009 | vrele(ap->a_fdvp); | |
1010 | vrele(ap->a_fvp); | |
f5f6c13e KM |
1011 | /* |
1012 | * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry. | |
1013 | */ | |
1014 | if (error == ENOENT) | |
1015 | error = 0; | |
a2907882 KM |
1016 | return (error); |
1017 | } | |
1018 | ||
1019 | /* | |
f0f1cbaa | 1020 | * nfs file rename rpc called from nfs_remove() above |
a2907882 | 1021 | */ |
cfef4373 JH |
1022 | int |
1023 | nfs_renameit(sdvp, scnp, sp) | |
1024 | struct vnode *sdvp; | |
1025 | struct componentname *scnp; | |
a9b4ecb2 | 1026 | register struct sillyrename *sp; |
a2907882 | 1027 | { |
26cb2431 | 1028 | register u_long *tl; |
13576453 | 1029 | register caddr_t cp; |
2c5b44a2 | 1030 | register long t2; |
13576453 | 1031 | caddr_t bpos, dpos; |
13576453 KM |
1032 | int error = 0; |
1033 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 KM |
1034 | |
1035 | nfsstats.rpccnt[NFSPROC_RENAME]++; | |
cfef4373 JH |
1036 | nfsm_reqhead(sdvp, NFSPROC_RENAME, |
1037 | (NFSX_FH+NFSX_UNSIGNED)*2+nfsm_rndup(scnp->cn_namelen)+ | |
2c5b44a2 | 1038 | nfsm_rndup(sp->s_namlen)); |
cfef4373 JH |
1039 | nfsm_fhtom(sdvp); |
1040 | nfsm_strtom(scnp->cn_nameptr, scnp->cn_namelen, NFS_MAXNAMLEN); | |
1041 | nfsm_fhtom(sdvp); | |
a9b4ecb2 | 1042 | nfsm_strtom(sp->s_name, sp->s_namlen, NFS_MAXNAMLEN); |
cfef4373 | 1043 | nfsm_request(sdvp, NFSPROC_RENAME, scnp->cn_proc, scnp->cn_cred); |
a2907882 | 1044 | nfsm_reqdone; |
cfef4373 JH |
1045 | FREE(scnp->cn_pnbuf, M_NAMEI); |
1046 | VTONFS(sdvp)->n_flag |= NMODIFIED; | |
a2907882 KM |
1047 | return (error); |
1048 | } | |
1049 | ||
1050 | /* | |
1051 | * nfs hard link create call | |
1052 | */ | |
cfef4373 | 1053 | int |
9342689a JH |
1054 | nfs_link (ap) |
1055 | struct vop_link_args *ap; | |
a2907882 | 1056 | { |
26cb2431 | 1057 | register u_long *tl; |
13576453 | 1058 | register caddr_t cp; |
2c5b44a2 | 1059 | register long t2; |
13576453 | 1060 | caddr_t bpos, dpos; |
13576453 KM |
1061 | int error = 0; |
1062 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 | 1063 | |
73e2cfb7 JSP |
1064 | if (ap->a_vp->v_mount != ap->a_tdvp->v_mount) { |
1065 | /*VOP_ABORTOP(ap->a_vp, ap->a_cnp);*/ | |
1066 | if (ap->a_tdvp == ap->a_vp) | |
1067 | vrele(ap->a_vp); | |
1068 | else | |
1069 | vput(ap->a_vp); | |
1070 | vrele(ap->a_tdvp); | |
1071 | return (EXDEV); | |
1072 | } | |
1073 | ||
a2907882 | 1074 | nfsstats.rpccnt[NFSPROC_LINK]++; |
e1b76915 JH |
1075 | nfsm_reqhead(ap->a_tdvp, NFSPROC_LINK, |
1076 | NFSX_FH*2+NFSX_UNSIGNED+nfsm_rndup(ap->a_cnp->cn_namelen)); | |
1077 | nfsm_fhtom(ap->a_tdvp); | |
1078 | nfsm_fhtom(ap->a_vp); | |
1079 | nfsm_strtom(ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen, NFS_MAXNAMLEN); | |
1080 | nfsm_request(ap->a_tdvp, NFSPROC_LINK, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
a2907882 | 1081 | nfsm_reqdone; |
e1b76915 JH |
1082 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); |
1083 | VTONFS(ap->a_tdvp)->n_attrstamp = 0; | |
1084 | VTONFS(ap->a_vp)->n_flag |= NMODIFIED; | |
1085 | vrele(ap->a_vp); | |
f5f6c13e KM |
1086 | /* |
1087 | * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. | |
1088 | */ | |
1089 | if (error == EEXIST) | |
1090 | error = 0; | |
a2907882 KM |
1091 | return (error); |
1092 | } | |
1093 | ||
1094 | /* | |
1095 | * nfs symbolic link create call | |
1096 | */ | |
cfef4373 JH |
1097 | /* start here */ |
1098 | int | |
9342689a JH |
1099 | nfs_symlink (ap) |
1100 | struct vop_symlink_args *ap; | |
a2907882 | 1101 | { |
9238aa59 | 1102 | register struct nfsv2_sattr *sp; |
26cb2431 | 1103 | register u_long *tl; |
13576453 | 1104 | register caddr_t cp; |
2c5b44a2 | 1105 | register long t2; |
13576453 | 1106 | caddr_t bpos, dpos; |
2c5b44a2 | 1107 | int slen, error = 0; |
13576453 | 1108 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; |
a2907882 KM |
1109 | |
1110 | nfsstats.rpccnt[NFSPROC_SYMLINK]++; | |
e1b76915 JH |
1111 | slen = strlen(ap->a_target); |
1112 | nfsm_reqhead(ap->a_dvp, NFSPROC_SYMLINK, | |
1113 | NFSX_FH+2*NFSX_UNSIGNED+nfsm_rndup(ap->a_cnp->cn_namelen)+nfsm_rndup(slen)+NFSX_SATTR); | |
1114 | nfsm_fhtom(ap->a_dvp); | |
1115 | nfsm_strtom(ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen, NFS_MAXNAMLEN); | |
1116 | nfsm_strtom(ap->a_target, slen, NFS_MAXPATHLEN); | |
9238aa59 | 1117 | nfsm_build(sp, struct nfsv2_sattr *, NFSX_SATTR); |
e1b76915 JH |
1118 | sp->sa_mode = vtonfs_mode(VLNK, ap->a_vap->va_mode); |
1119 | sp->sa_uid = txdr_unsigned(ap->a_cnp->cn_cred->cr_uid); | |
1120 | sp->sa_gid = txdr_unsigned(ap->a_cnp->cn_cred->cr_gid); | |
9238aa59 | 1121 | sp->sa_size = txdr_unsigned(VNOVAL); |
e1b76915 JH |
1122 | txdr_time(&ap->a_vap->va_atime, &sp->sa_atime); /* or VNOVAL ?? */ |
1123 | txdr_time(&ap->a_vap->va_mtime, &sp->sa_mtime); /* or VNOVAL ?? */ | |
1124 | nfsm_request(ap->a_dvp, NFSPROC_SYMLINK, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
a2907882 | 1125 | nfsm_reqdone; |
e1b76915 JH |
1126 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); |
1127 | VTONFS(ap->a_dvp)->n_flag |= NMODIFIED; | |
1128 | vrele(ap->a_dvp); | |
f5f6c13e KM |
1129 | /* |
1130 | * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. | |
1131 | */ | |
1132 | if (error == EEXIST) | |
1133 | error = 0; | |
a2907882 KM |
1134 | return (error); |
1135 | } | |
1136 | ||
1137 | /* | |
1138 | * nfs make dir call | |
1139 | */ | |
cfef4373 | 1140 | int |
9342689a JH |
1141 | nfs_mkdir (ap) |
1142 | struct vop_mkdir_args *ap; | |
a2907882 | 1143 | { |
9238aa59 | 1144 | register struct nfsv2_sattr *sp; |
26cb2431 | 1145 | register u_long *tl; |
13576453 KM |
1146 | register caddr_t cp; |
1147 | register long t1, t2; | |
f0f1cbaa | 1148 | register int len; |
13576453 | 1149 | caddr_t bpos, dpos, cp2; |
f0f1cbaa | 1150 | int error = 0, firsttry = 1; |
13576453 | 1151 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; |
a2907882 | 1152 | |
e1b76915 | 1153 | len = ap->a_cnp->cn_namelen; |
a2907882 | 1154 | nfsstats.rpccnt[NFSPROC_MKDIR]++; |
e1b76915 | 1155 | nfsm_reqhead(ap->a_dvp, NFSPROC_MKDIR, |
f0f1cbaa | 1156 | NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(len)+NFSX_SATTR); |
e1b76915 JH |
1157 | nfsm_fhtom(ap->a_dvp); |
1158 | nfsm_strtom(ap->a_cnp->cn_nameptr, len, NFS_MAXNAMLEN); | |
9238aa59 | 1159 | nfsm_build(sp, struct nfsv2_sattr *, NFSX_SATTR); |
e1b76915 JH |
1160 | sp->sa_mode = vtonfs_mode(VDIR, ap->a_vap->va_mode); |
1161 | sp->sa_uid = txdr_unsigned(ap->a_cnp->cn_cred->cr_uid); | |
1162 | sp->sa_gid = txdr_unsigned(ap->a_cnp->cn_cred->cr_gid); | |
9238aa59 | 1163 | sp->sa_size = txdr_unsigned(VNOVAL); |
e1b76915 JH |
1164 | txdr_time(&ap->a_vap->va_atime, &sp->sa_atime); /* or VNOVAL ?? */ |
1165 | txdr_time(&ap->a_vap->va_mtime, &sp->sa_mtime); /* or VNOVAL ?? */ | |
1166 | nfsm_request(ap->a_dvp, NFSPROC_MKDIR, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
1167 | nfsm_mtofh(ap->a_dvp, *ap->a_vpp); | |
a2907882 | 1168 | nfsm_reqdone; |
e1b76915 | 1169 | VTONFS(ap->a_dvp)->n_flag |= NMODIFIED; |
f5f6c13e | 1170 | /* |
f0f1cbaa KM |
1171 | * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry |
1172 | * if we can succeed in looking up the directory. | |
1173 | * "firsttry" is necessary since the macros may "goto nfsmout" which | |
1174 | * is above the if on errors. (Ugh) | |
f5f6c13e | 1175 | */ |
f0f1cbaa KM |
1176 | if (error == EEXIST && firsttry) { |
1177 | firsttry = 0; | |
f5f6c13e | 1178 | error = 0; |
f0f1cbaa | 1179 | nfsstats.rpccnt[NFSPROC_LOOKUP]++; |
e1b76915 JH |
1180 | *ap->a_vpp = NULL; |
1181 | nfsm_reqhead(ap->a_dvp, NFSPROC_LOOKUP, | |
f0f1cbaa | 1182 | NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(len)); |
e1b76915 JH |
1183 | nfsm_fhtom(ap->a_dvp); |
1184 | nfsm_strtom(ap->a_cnp->cn_nameptr, len, NFS_MAXNAMLEN); | |
1185 | nfsm_request(ap->a_dvp, NFSPROC_LOOKUP, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
1186 | nfsm_mtofh(ap->a_dvp, *ap->a_vpp); | |
1187 | if ((*ap->a_vpp)->v_type != VDIR) { | |
1188 | vput(*ap->a_vpp); | |
f0f1cbaa KM |
1189 | error = EEXIST; |
1190 | } | |
1191 | m_freem(mrep); | |
1192 | } | |
e1b76915 JH |
1193 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); |
1194 | vrele(ap->a_dvp); | |
a2907882 KM |
1195 | return (error); |
1196 | } | |
1197 | ||
1198 | /* | |
1199 | * nfs remove directory call | |
1200 | */ | |
cfef4373 | 1201 | int |
9342689a JH |
1202 | nfs_rmdir (ap) |
1203 | struct vop_rmdir_args *ap; | |
a2907882 | 1204 | { |
26cb2431 | 1205 | register u_long *tl; |
13576453 | 1206 | register caddr_t cp; |
2c5b44a2 | 1207 | register long t2; |
13576453 | 1208 | caddr_t bpos, dpos; |
13576453 KM |
1209 | int error = 0; |
1210 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 | 1211 | |
e1b76915 JH |
1212 | if (ap->a_dvp == ap->a_vp) { |
1213 | vrele(ap->a_dvp); | |
1214 | vrele(ap->a_dvp); | |
1215 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); | |
a2907882 KM |
1216 | return (EINVAL); |
1217 | } | |
a2907882 | 1218 | nfsstats.rpccnt[NFSPROC_RMDIR]++; |
e1b76915 JH |
1219 | nfsm_reqhead(ap->a_dvp, NFSPROC_RMDIR, |
1220 | NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(ap->a_cnp->cn_namelen)); | |
1221 | nfsm_fhtom(ap->a_dvp); | |
1222 | nfsm_strtom(ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen, NFS_MAXNAMLEN); | |
1223 | nfsm_request(ap->a_dvp, NFSPROC_RMDIR, ap->a_cnp->cn_proc, ap->a_cnp->cn_cred); | |
a2907882 | 1224 | nfsm_reqdone; |
e1b76915 JH |
1225 | FREE(ap->a_cnp->cn_pnbuf, M_NAMEI); |
1226 | VTONFS(ap->a_dvp)->n_flag |= NMODIFIED; | |
1227 | cache_purge(ap->a_dvp); | |
1228 | cache_purge(ap->a_vp); | |
1229 | vrele(ap->a_vp); | |
1230 | vrele(ap->a_dvp); | |
f5f6c13e KM |
1231 | /* |
1232 | * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. | |
1233 | */ | |
1234 | if (error == ENOENT) | |
1235 | error = 0; | |
a2907882 KM |
1236 | return (error); |
1237 | } | |
1238 | ||
1239 | /* | |
1240 | * nfs readdir call | |
1241 | * Although cookie is defined as opaque, I translate it to/from net byte | |
1242 | * order so that it looks more sensible. This appears consistent with the | |
1243 | * Ultrix implementation of NFS. | |
1244 | */ | |
cfef4373 | 1245 | int |
9342689a JH |
1246 | nfs_readdir (ap) |
1247 | struct vop_readdir_args *ap; | |
f0f1cbaa | 1248 | { |
9342689a | 1249 | USES_VOP_GETATTR; |
e1b76915 | 1250 | register struct nfsnode *np = VTONFS(ap->a_vp); |
f0f1cbaa KM |
1251 | int tresid, error; |
1252 | struct vattr vattr; | |
1253 | ||
e1b76915 | 1254 | if (ap->a_vp->v_type != VDIR) |
f0f1cbaa KM |
1255 | return (EPERM); |
1256 | /* | |
1257 | * First, check for hit on the EOF offset cache | |
1258 | */ | |
e1b76915 | 1259 | if (ap->a_uio->uio_offset != 0 && ap->a_uio->uio_offset == np->n_direofoffset && |
2c5b44a2 | 1260 | (np->n_flag & NMODIFIED) == 0) { |
e1b76915 JH |
1261 | if (VFSTONFS(ap->a_vp->v_mount)->nm_flag & NFSMNT_NQNFS) { |
1262 | if (NQNFS_CKCACHABLE(ap->a_vp, NQL_READ)) { | |
1263 | *ap->a_eofflagp = 1; | |
2c5b44a2 KM |
1264 | nfsstats.direofcache_hits++; |
1265 | return (0); | |
1266 | } | |
e1b76915 | 1267 | } else if (VOP_GETATTR(ap->a_vp, &vattr, ap->a_cred, ap->a_uio->uio_procp) == 0 && |
2c5b44a2 | 1268 | np->n_mtime == vattr.va_mtime.tv_sec) { |
e1b76915 | 1269 | *ap->a_eofflagp = 1; |
2c5b44a2 KM |
1270 | nfsstats.direofcache_hits++; |
1271 | return (0); | |
1272 | } | |
f0f1cbaa KM |
1273 | } |
1274 | ||
1275 | /* | |
1276 | * Call nfs_bioread() to do the real work. | |
1277 | */ | |
e1b76915 JH |
1278 | tresid = ap->a_uio->uio_resid; |
1279 | error = nfs_bioread(ap->a_vp, ap->a_uio, 0, ap->a_cred); | |
f0f1cbaa | 1280 | |
e1b76915 JH |
1281 | if (!error && ap->a_uio->uio_resid == tresid) { |
1282 | *ap->a_eofflagp = 1; | |
f0f1cbaa KM |
1283 | nfsstats.direofcache_misses++; |
1284 | } else | |
e1b76915 | 1285 | *ap->a_eofflagp = 0; |
f0f1cbaa KM |
1286 | return (error); |
1287 | } | |
1288 | ||
1289 | /* | |
1290 | * Readdir rpc call. | |
1291 | * Called from below the buffer cache by nfs_doio(). | |
1292 | */ | |
cfef4373 | 1293 | int |
26cb2431 | 1294 | nfs_readdirrpc(vp, uiop, cred) |
f0f1cbaa KM |
1295 | register struct vnode *vp; |
1296 | struct uio *uiop; | |
1297 | struct ucred *cred; | |
a2907882 KM |
1298 | { |
1299 | register long len; | |
f0a3460e | 1300 | register struct readdir *dp; |
26cb2431 | 1301 | register u_long *tl; |
13576453 KM |
1302 | register caddr_t cp; |
1303 | register long t1; | |
f0f1cbaa | 1304 | long tlen, lastlen; |
13576453 | 1305 | caddr_t bpos, dpos, cp2; |
13576453 KM |
1306 | int error = 0; |
1307 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 KM |
1308 | struct mbuf *md2; |
1309 | caddr_t dpos2; | |
1310 | int siz; | |
e49b1a6c | 1311 | int more_dirs = 1; |
a2907882 | 1312 | off_t off, savoff; |
f0a3460e | 1313 | struct readdir *savdp; |
e49b1a6c KM |
1314 | struct nfsmount *nmp; |
1315 | struct nfsnode *np = VTONFS(vp); | |
1316 | long tresid; | |
a2907882 | 1317 | |
54fb9dc2 | 1318 | nmp = VFSTONFS(vp->v_mount); |
e49b1a6c | 1319 | tresid = uiop->uio_resid; |
a2907882 | 1320 | /* |
e49b1a6c | 1321 | * Loop around doing readdir rpc's of size uio_resid or nm_rsize, |
26cb2431 | 1322 | * whichever is smaller, truncated to a multiple of NFS_DIRBLKSIZ. |
f0f1cbaa | 1323 | * The stopping criteria is EOF or buffer full. |
a2907882 | 1324 | */ |
26cb2431 | 1325 | while (more_dirs && uiop->uio_resid >= NFS_DIRBLKSIZ) { |
e49b1a6c | 1326 | nfsstats.rpccnt[NFSPROC_READDIR]++; |
2c5b44a2 KM |
1327 | nfsm_reqhead(vp, NFSPROC_READDIR, |
1328 | NFSX_FH+2*NFSX_UNSIGNED); | |
e49b1a6c | 1329 | nfsm_fhtom(vp); |
26cb2431 KM |
1330 | nfsm_build(tl, u_long *, 2*NFSX_UNSIGNED); |
1331 | *tl++ = txdr_unsigned(uiop->uio_offset); | |
1332 | *tl = txdr_unsigned(((uiop->uio_resid > nmp->nm_rsize) ? | |
1333 | nmp->nm_rsize : uiop->uio_resid) & ~(NFS_DIRBLKSIZ-1)); | |
2c5b44a2 | 1334 | nfsm_request(vp, NFSPROC_READDIR, uiop->uio_procp, cred); |
e49b1a6c | 1335 | siz = 0; |
2c5b44a2 | 1336 | nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); |
26cb2431 | 1337 | more_dirs = fxdr_unsigned(int, *tl); |
e49b1a6c KM |
1338 | |
1339 | /* Save the position so that we can do nfsm_mtouio() later */ | |
1340 | dpos2 = dpos; | |
1341 | md2 = md; | |
1342 | ||
1343 | /* loop thru the dir entries, doctoring them to 4bsd form */ | |
f0f1cbaa | 1344 | off = uiop->uio_offset; |
7c15c5df | 1345 | #ifdef lint |
f0a3460e | 1346 | dp = (struct readdir *)0; |
7c15c5df | 1347 | #endif /* lint */ |
e49b1a6c KM |
1348 | while (more_dirs && siz < uiop->uio_resid) { |
1349 | savoff = off; /* Hold onto offset and dp */ | |
1350 | savdp = dp; | |
2c5b44a2 | 1351 | nfsm_dissecton(tl, u_long *, 2*NFSX_UNSIGNED); |
f0a3460e | 1352 | dp = (struct readdir *)tl; |
26cb2431 KM |
1353 | dp->d_ino = fxdr_unsigned(u_long, *tl++); |
1354 | len = fxdr_unsigned(int, *tl); | |
e49b1a6c KM |
1355 | if (len <= 0 || len > NFS_MAXNAMLEN) { |
1356 | error = EBADRPC; | |
1357 | m_freem(mrep); | |
1358 | goto nfsmout; | |
1359 | } | |
1360 | dp->d_namlen = (u_short)len; | |
1361 | nfsm_adv(len); /* Point past name */ | |
1362 | tlen = nfsm_rndup(len); | |
1363 | /* | |
1364 | * This should not be necessary, but some servers have | |
1365 | * broken XDR such that these bytes are not null filled. | |
1366 | */ | |
1367 | if (tlen != len) { | |
1368 | *dpos = '\0'; /* Null-terminate */ | |
1369 | nfsm_adv(tlen - len); | |
1370 | len = tlen; | |
1371 | } | |
2c5b44a2 | 1372 | nfsm_dissecton(tl, u_long *, 2*NFSX_UNSIGNED); |
26cb2431 KM |
1373 | off = fxdr_unsigned(off_t, *tl); |
1374 | *tl++ = 0; /* Ensures null termination of name */ | |
1375 | more_dirs = fxdr_unsigned(int, *tl); | |
e49b1a6c KM |
1376 | dp->d_reclen = len+4*NFSX_UNSIGNED; |
1377 | siz += dp->d_reclen; | |
1378 | } | |
1379 | /* | |
1380 | * If at end of rpc data, get the eof boolean | |
1381 | */ | |
1382 | if (!more_dirs) { | |
2c5b44a2 | 1383 | nfsm_dissecton(tl, u_long *, NFSX_UNSIGNED); |
26cb2431 | 1384 | more_dirs = (fxdr_unsigned(int, *tl) == 0); |
e49b1a6c KM |
1385 | |
1386 | /* | |
1387 | * If at EOF, cache directory offset | |
1388 | */ | |
f0f1cbaa | 1389 | if (!more_dirs) |
e49b1a6c | 1390 | np->n_direofoffset = off; |
e49b1a6c KM |
1391 | } |
1392 | /* | |
1393 | * If there is too much to fit in the data buffer, use savoff and | |
1394 | * savdp to trim off the last record. | |
1395 | * --> we are not at eof | |
1396 | */ | |
1397 | if (siz > uiop->uio_resid) { | |
1398 | off = savoff; | |
1399 | siz -= dp->d_reclen; | |
1400 | dp = savdp; | |
1401 | more_dirs = 0; /* Paranoia */ | |
1402 | } | |
1403 | if (siz > 0) { | |
f0f1cbaa | 1404 | lastlen = dp->d_reclen; |
e49b1a6c KM |
1405 | md = md2; |
1406 | dpos = dpos2; | |
1407 | nfsm_mtouio(uiop, siz); | |
1408 | uiop->uio_offset = off; | |
1409 | } else | |
1410 | more_dirs = 0; /* Ugh, never happens, but in case.. */ | |
1411 | m_freem(mrep); | |
a2907882 | 1412 | } |
f0f1cbaa | 1413 | /* |
26cb2431 | 1414 | * Fill last record, iff any, out to a multiple of NFS_DIRBLKSIZ |
f0f1cbaa KM |
1415 | * by increasing d_reclen for the last record. |
1416 | */ | |
1417 | if (uiop->uio_resid < tresid) { | |
26cb2431 | 1418 | len = uiop->uio_resid & (NFS_DIRBLKSIZ - 1); |
f0f1cbaa | 1419 | if (len > 0) { |
f0a3460e | 1420 | dp = (struct readdir *) |
f0f1cbaa KM |
1421 | (uiop->uio_iov->iov_base - lastlen); |
1422 | dp->d_reclen += len; | |
1423 | uiop->uio_iov->iov_base += len; | |
1424 | uiop->uio_iov->iov_len -= len; | |
1425 | uiop->uio_resid -= len; | |
1426 | } | |
c79a85cd | 1427 | } |
f0f1cbaa | 1428 | nfsmout: |
a2907882 KM |
1429 | return (error); |
1430 | } | |
1431 | ||
2c5b44a2 KM |
1432 | /* |
1433 | * Nqnfs readdir_and_lookup RPC. Used in place of nfs_readdirrpc() when | |
1434 | * the "rdirlook" mount option is specified. | |
1435 | */ | |
cfef4373 | 1436 | int |
2c5b44a2 KM |
1437 | nfs_readdirlookrpc(vp, uiop, cred) |
1438 | struct vnode *vp; | |
1439 | register struct uio *uiop; | |
1440 | struct ucred *cred; | |
1441 | { | |
1442 | register int len; | |
f0a3460e | 1443 | register struct readdir *dp; |
2c5b44a2 KM |
1444 | register u_long *tl; |
1445 | register caddr_t cp; | |
1446 | register long t1; | |
1447 | caddr_t bpos, dpos, cp2; | |
1448 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
1449 | struct nameidata nami, *ndp = &nami; | |
c5b4f497 | 1450 | struct componentname *cnp = &ndp->ni_cnd; |
2c5b44a2 KM |
1451 | off_t off, endoff; |
1452 | time_t reqtime, ltime; | |
1453 | struct nfsmount *nmp; | |
1454 | struct nfsnode *np, *tp; | |
1455 | struct vnode *newvp; | |
1456 | nfsv2fh_t *fhp; | |
1457 | u_long fileno; | |
1458 | u_quad_t frev; | |
1459 | int error = 0, tlen, more_dirs = 1, tresid, doit, bigenough, i; | |
1460 | int cachable; | |
1461 | ||
1462 | if (uiop->uio_iovcnt != 1) | |
1463 | panic("nfs rdirlook"); | |
1464 | nmp = VFSTONFS(vp->v_mount); | |
1465 | tresid = uiop->uio_resid; | |
1466 | ndp->ni_dvp = vp; | |
1467 | newvp = NULLVP; | |
1468 | /* | |
1469 | * Loop around doing readdir rpc's of size uio_resid or nm_rsize, | |
1470 | * whichever is smaller, truncated to a multiple of NFS_DIRBLKSIZ. | |
1471 | * The stopping criteria is EOF or buffer full. | |
1472 | */ | |
1473 | while (more_dirs && uiop->uio_resid >= NFS_DIRBLKSIZ) { | |
1474 | nfsstats.rpccnt[NQNFSPROC_READDIRLOOK]++; | |
1475 | nfsm_reqhead(vp, NQNFSPROC_READDIRLOOK, | |
1476 | NFSX_FH+3*NFSX_UNSIGNED); | |
1477 | nfsm_fhtom(vp); | |
1478 | nfsm_build(tl, u_long *, 3*NFSX_UNSIGNED); | |
1479 | *tl++ = txdr_unsigned(uiop->uio_offset); | |
1480 | *tl++ = txdr_unsigned(((uiop->uio_resid > nmp->nm_rsize) ? | |
1481 | nmp->nm_rsize : uiop->uio_resid) & ~(NFS_DIRBLKSIZ-1)); | |
1482 | *tl = txdr_unsigned(nmp->nm_leaseterm); | |
1483 | reqtime = time.tv_sec; | |
1484 | nfsm_request(vp, NQNFSPROC_READDIRLOOK, uiop->uio_procp, cred); | |
1485 | nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); | |
1486 | more_dirs = fxdr_unsigned(int, *tl); | |
1487 | ||
1488 | /* loop thru the dir entries, doctoring them to 4bsd form */ | |
1489 | off = uiop->uio_offset; | |
1490 | bigenough = 1; | |
1491 | while (more_dirs && bigenough) { | |
1492 | doit = 1; | |
1493 | nfsm_dissect(tl, u_long *, 4*NFSX_UNSIGNED); | |
1494 | cachable = fxdr_unsigned(int, *tl++); | |
1495 | ltime = reqtime + fxdr_unsigned(int, *tl++); | |
1496 | fxdr_hyper(tl, &frev); | |
1497 | nfsm_dissect(fhp, nfsv2fh_t *, NFSX_FH); | |
1498 | if (!bcmp(VTONFS(vp)->n_fh.fh_bytes, (caddr_t)fhp, NFSX_FH)) { | |
1499 | VREF(vp); | |
1500 | newvp = vp; | |
1501 | np = VTONFS(vp); | |
1502 | } else { | |
1503 | if (error = nfs_nget(vp->v_mount, fhp, &np)) | |
1504 | doit = 0; | |
1505 | newvp = NFSTOV(np); | |
1506 | } | |
1507 | if (error = nfs_loadattrcache(&newvp, &md, &dpos, | |
1508 | (struct vattr *)0)) | |
1509 | doit = 0; | |
1510 | nfsm_dissect(tl, u_long *, 2*NFSX_UNSIGNED); | |
1511 | fileno = fxdr_unsigned(u_long, *tl++); | |
1512 | len = fxdr_unsigned(int, *tl); | |
1513 | if (len <= 0 || len > NFS_MAXNAMLEN) { | |
1514 | error = EBADRPC; | |
1515 | m_freem(mrep); | |
1516 | goto nfsmout; | |
1517 | } | |
1518 | tlen = (len + 4) & ~0x3; | |
1519 | if ((tlen + DIRHDSIZ) > uiop->uio_resid) | |
1520 | bigenough = 0; | |
1521 | if (bigenough && doit) { | |
f0a3460e | 1522 | dp = (struct readdir *)uiop->uio_iov->iov_base; |
2c5b44a2 KM |
1523 | dp->d_ino = fileno; |
1524 | dp->d_namlen = len; | |
1525 | dp->d_reclen = tlen + DIRHDSIZ; | |
1526 | uiop->uio_resid -= DIRHDSIZ; | |
1527 | uiop->uio_iov->iov_base += DIRHDSIZ; | |
1528 | uiop->uio_iov->iov_len -= DIRHDSIZ; | |
c5b4f497 JH |
1529 | cnp->cn_nameptr = uiop->uio_iov->iov_base; |
1530 | cnp->cn_namelen = len; | |
2c5b44a2 KM |
1531 | ndp->ni_vp = newvp; |
1532 | nfsm_mtouio(uiop, len); | |
1533 | cp = uiop->uio_iov->iov_base; | |
1534 | tlen -= len; | |
1535 | for (i = 0; i < tlen; i++) | |
1536 | *cp++ = '\0'; | |
1537 | uiop->uio_iov->iov_base += tlen; | |
1538 | uiop->uio_iov->iov_len -= tlen; | |
1539 | uiop->uio_resid -= tlen; | |
c5b4f497 JH |
1540 | cnp->cn_hash = 0; |
1541 | for (cp = cnp->cn_nameptr, i = 1; i <= len; i++, cp++) | |
1542 | cnp->cn_hash += (unsigned char)*cp * i; | |
2c5b44a2 KM |
1543 | if (ltime > time.tv_sec) { |
1544 | if (np->n_tnext) { | |
1545 | if (np->n_tnext == (struct nfsnode *)nmp) | |
1546 | nmp->nm_tprev = np->n_tprev; | |
1547 | else | |
1548 | np->n_tnext->n_tprev = np->n_tprev; | |
1549 | if (np->n_tprev == (struct nfsnode *)nmp) | |
1550 | nmp->nm_tnext = np->n_tnext; | |
1551 | else | |
1552 | np->n_tprev->n_tnext = np->n_tnext; | |
1553 | } else | |
1554 | np->n_flag &= ~NQNFSWRITE; | |
1555 | if (cachable) | |
1556 | np->n_flag &= ~NQNFSNONCACHE; | |
1557 | else | |
1558 | np->n_flag |= NQNFSNONCACHE; | |
1559 | np->n_expiry = ltime; | |
1560 | np->n_lrev = frev; | |
1561 | tp = nmp->nm_tprev; | |
1562 | while (tp != (struct nfsnode *)nmp && tp->n_expiry > np->n_expiry) | |
1563 | tp = tp->n_tprev; | |
1564 | if (tp == (struct nfsnode *)nmp) { | |
1565 | np->n_tnext = nmp->nm_tnext; | |
1566 | nmp->nm_tnext = np; | |
1567 | } else { | |
1568 | np->n_tnext = tp->n_tnext; | |
1569 | tp->n_tnext = np; | |
1570 | } | |
1571 | np->n_tprev = tp; | |
1572 | if (np->n_tnext == (struct nfsnode *)nmp) | |
1573 | nmp->nm_tprev = np; | |
1574 | else | |
1575 | np->n_tnext->n_tprev = np; | |
c5b4f497 | 1576 | cache_enter(ndp->ni_dvp, ndp->ni_vp, cnp); |
2c5b44a2 KM |
1577 | } |
1578 | } else { | |
1579 | nfsm_adv(nfsm_rndup(len)); | |
1580 | } | |
1581 | if (newvp != NULLVP) { | |
1582 | vrele(newvp); | |
1583 | newvp = NULLVP; | |
1584 | } | |
1585 | nfsm_dissect(tl, u_long *, 2*NFSX_UNSIGNED); | |
1586 | if (bigenough) | |
1587 | endoff = off = fxdr_unsigned(off_t, *tl++); | |
1588 | else | |
1589 | endoff = fxdr_unsigned(off_t, *tl++); | |
1590 | more_dirs = fxdr_unsigned(int, *tl); | |
1591 | } | |
1592 | /* | |
1593 | * If at end of rpc data, get the eof boolean | |
1594 | */ | |
1595 | if (!more_dirs) { | |
1596 | nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); | |
1597 | more_dirs = (fxdr_unsigned(int, *tl) == 0); | |
1598 | ||
1599 | /* | |
1600 | * If at EOF, cache directory offset | |
1601 | */ | |
1602 | if (!more_dirs) | |
1603 | VTONFS(vp)->n_direofoffset = endoff; | |
1604 | } | |
1605 | if (uiop->uio_resid < tresid) | |
1606 | uiop->uio_offset = off; | |
1607 | else | |
1608 | more_dirs = 0; | |
1609 | m_freem(mrep); | |
1610 | } | |
1611 | /* | |
1612 | * Fill last record, iff any, out to a multiple of NFS_DIRBLKSIZ | |
1613 | * by increasing d_reclen for the last record. | |
1614 | */ | |
1615 | if (uiop->uio_resid < tresid) { | |
1616 | len = uiop->uio_resid & (NFS_DIRBLKSIZ - 1); | |
1617 | if (len > 0) { | |
1618 | dp->d_reclen += len; | |
1619 | uiop->uio_iov->iov_base += len; | |
1620 | uiop->uio_iov->iov_len -= len; | |
1621 | uiop->uio_resid -= len; | |
1622 | } | |
1623 | } | |
1624 | nfsmout: | |
1625 | if (newvp != NULLVP) | |
1626 | vrele(newvp); | |
1627 | return (error); | |
1628 | } | |
13576453 | 1629 | static char hextoasc[] = "0123456789abcdef"; |
a2907882 KM |
1630 | |
1631 | /* | |
1632 | * Silly rename. To make the NFS filesystem that is stateless look a little | |
1633 | * more like the "ufs" a remove of an active vnode is translated to a rename | |
1634 | * to a funny looking filename that is removed by nfs_inactive on the | |
1635 | * nfsnode. There is the potential for another process on a different client | |
1636 | * to create the same funny name between the nfs_lookitup() fails and the | |
1637 | * nfs_rename() completes, but... | |
1638 | */ | |
cfef4373 | 1639 | int |
c5b4f497 | 1640 | nfs_sillyrename(dvp, vp, cnp) |
cfef4373 JH |
1641 | struct vnode *dvp, *vp; |
1642 | struct componentname *cnp; | |
a2907882 KM |
1643 | { |
1644 | register struct nfsnode *np; | |
1645 | register struct sillyrename *sp; | |
a2907882 KM |
1646 | int error; |
1647 | short pid; | |
1648 | ||
cfef4373 JH |
1649 | cache_purge(dvp); |
1650 | np = VTONFS(vp); | |
4999e85f | 1651 | #ifdef SILLYSEPARATE |
a2907882 | 1652 | MALLOC(sp, struct sillyrename *, sizeof (struct sillyrename), |
a9b4ecb2 | 1653 | M_NFSREQ, M_WAITOK); |
4999e85f KM |
1654 | #else |
1655 | sp = &np->n_silly; | |
1656 | #endif | |
cfef4373 JH |
1657 | sp->s_cred = crdup(cnp->cn_cred); |
1658 | sp->s_dvp = dvp; | |
1659 | VREF(dvp); | |
a2907882 KM |
1660 | |
1661 | /* Fudge together a funny name */ | |
cfef4373 | 1662 | pid = cnp->cn_proc->p_pid; |
a9b4ecb2 KM |
1663 | bcopy(".nfsAxxxx4.4", sp->s_name, 13); |
1664 | sp->s_namlen = 12; | |
1665 | sp->s_name[8] = hextoasc[pid & 0xf]; | |
1666 | sp->s_name[7] = hextoasc[(pid >> 4) & 0xf]; | |
1667 | sp->s_name[6] = hextoasc[(pid >> 8) & 0xf]; | |
1668 | sp->s_name[5] = hextoasc[(pid >> 12) & 0xf]; | |
a2907882 KM |
1669 | |
1670 | /* Try lookitups until we get one that isn't there */ | |
cfef4373 | 1671 | while (nfs_lookitup(sp, (nfsv2fh_t *)0, cnp->cn_proc) == 0) { |
a9b4ecb2 KM |
1672 | sp->s_name[4]++; |
1673 | if (sp->s_name[4] > 'z') { | |
a2907882 KM |
1674 | error = EINVAL; |
1675 | goto bad; | |
1676 | } | |
1677 | } | |
cfef4373 | 1678 | if (error = nfs_renameit(dvp, cnp, sp)) |
a2907882 | 1679 | goto bad; |
cfef4373 | 1680 | nfs_lookitup(sp, &np->n_fh, cnp->cn_proc); |
a2907882 KM |
1681 | np->n_sillyrename = sp; |
1682 | return (0); | |
1683 | bad: | |
a9b4ecb2 KM |
1684 | vrele(sp->s_dvp); |
1685 | crfree(sp->s_cred); | |
4999e85f | 1686 | #ifdef SILLYSEPARATE |
a9b4ecb2 | 1687 | free((caddr_t)sp, M_NFSREQ); |
4999e85f | 1688 | #endif |
a2907882 KM |
1689 | return (error); |
1690 | } | |
1691 | ||
1692 | /* | |
1693 | * Look up a file name for silly rename stuff. | |
1694 | * Just like nfs_lookup() except that it doesn't load returned values | |
1695 | * into the nfsnode table. | |
1696 | * If fhp != NULL it copies the returned file handle out | |
1697 | */ | |
cfef4373 | 1698 | int |
2c5b44a2 | 1699 | nfs_lookitup(sp, fhp, procp) |
a9b4ecb2 | 1700 | register struct sillyrename *sp; |
a2907882 | 1701 | nfsv2fh_t *fhp; |
2c5b44a2 | 1702 | struct proc *procp; |
a2907882 | 1703 | { |
a9b4ecb2 | 1704 | register struct vnode *vp = sp->s_dvp; |
26cb2431 | 1705 | register u_long *tl; |
13576453 KM |
1706 | register caddr_t cp; |
1707 | register long t1, t2; | |
1708 | caddr_t bpos, dpos, cp2; | |
1709 | u_long xid; | |
1710 | int error = 0; | |
1711 | struct mbuf *mreq, *mrep, *md, *mb, *mb2; | |
a2907882 KM |
1712 | long len; |
1713 | ||
1714 | nfsstats.rpccnt[NFSPROC_LOOKUP]++; | |
a9b4ecb2 | 1715 | len = sp->s_namlen; |
2c5b44a2 | 1716 | nfsm_reqhead(vp, NFSPROC_LOOKUP, NFSX_FH+NFSX_UNSIGNED+nfsm_rndup(len)); |
a2907882 | 1717 | nfsm_fhtom(vp); |
a9b4ecb2 | 1718 | nfsm_strtom(sp->s_name, len, NFS_MAXNAMLEN); |
2c5b44a2 | 1719 | nfsm_request(vp, NFSPROC_LOOKUP, procp, sp->s_cred); |
a2907882 | 1720 | if (fhp != NULL) { |
2c5b44a2 | 1721 | nfsm_dissect(cp, caddr_t, NFSX_FH); |
a2907882 KM |
1722 | bcopy(cp, (caddr_t)fhp, NFSX_FH); |
1723 | } | |
1724 | nfsm_reqdone; | |
1725 | return (error); | |
1726 | } | |
1727 | ||
1728 | /* | |
1729 | * Kludge City.. | |
1730 | * - make nfs_bmap() essentially a no-op that does no translation | |
f0f1cbaa | 1731 | * - do nfs_strategy() by faking physical I/O with nfs_readrpc/nfs_writerpc |
a2907882 KM |
1732 | * after mapping the physical addresses into Kernel Virtual space in the |
1733 | * nfsiobuf area. | |
1734 | * (Maybe I could use the process's page mapping, but I was concerned that | |
1735 | * Kernel Write might not be enabled and also figured copyout() would do | |
1736 | * a lot more work than bcopy() and also it currently happens in the | |
1737 | * context of the swapper process (2). | |
1738 | */ | |
cfef4373 | 1739 | int |
9342689a JH |
1740 | nfs_bmap (ap) |
1741 | struct vop_bmap_args *ap; | |
a2907882 | 1742 | { |
e1b76915 JH |
1743 | if (ap->a_vpp != NULL) |
1744 | *ap->a_vpp = ap->a_vp; | |
1745 | if (ap->a_bnp != NULL) | |
1746 | *ap->a_bnp = ap->a_bn * btodb(ap->a_vp->v_mount->mnt_stat.f_iosize); | |
a2907882 KM |
1747 | return (0); |
1748 | } | |
1749 | ||
1750 | /* | |
9238aa59 RM |
1751 | * Strategy routine for phys. i/o |
1752 | * If the biod's are running, queue a request | |
1753 | * otherwise just call nfs_doio() to get it done | |
a2907882 | 1754 | */ |
cfef4373 | 1755 | int |
9342689a JH |
1756 | nfs_strategy (ap) |
1757 | struct vop_strategy_args *ap; | |
9238aa59 RM |
1758 | { |
1759 | register struct buf *dp; | |
ffe6f482 | 1760 | register int i; |
9238aa59 | 1761 | int error = 0; |
ffe6f482 | 1762 | int fnd = 0; |
9238aa59 | 1763 | |
f0f1cbaa KM |
1764 | /* |
1765 | * Set b_proc. It seems a bit silly to do it here, but since bread() | |
1766 | * doesn't set it, I will. | |
48531fd3 | 1767 | * Set b_proc == NULL for asynchronous ops, since these may still |
f0f1cbaa KM |
1768 | * be hanging about after the process terminates. |
1769 | */ | |
e1b76915 JH |
1770 | if ((ap->a_bp->b_flags & B_PHYS) == 0) { |
1771 | if (ap->a_bp->b_flags & B_ASYNC) | |
1772 | ap->a_bp->b_proc = (struct proc *)0; | |
1c89915d | 1773 | else |
e1b76915 | 1774 | ap->a_bp->b_proc = curproc; |
1c89915d | 1775 | } |
9238aa59 | 1776 | /* |
48531fd3 | 1777 | * If the op is asynchronous and an i/o daemon is waiting |
9238aa59 | 1778 | * queue the request, wake it up and wait for completion |
48531fd3 | 1779 | * otherwise just do it ourselves. |
9238aa59 | 1780 | */ |
e1b76915 JH |
1781 | if ((ap->a_bp->b_flags & B_ASYNC) == 0 || nfs_numasync == 0) |
1782 | return (nfs_doio(ap->a_bp)); | |
1c89915d KM |
1783 | for (i = 0; i < NFS_MAXASYNCDAEMON; i++) { |
1784 | if (nfs_iodwant[i]) { | |
ffe6f482 KM |
1785 | dp = &nfs_bqueue; |
1786 | if (dp->b_actf == NULL) { | |
e1b76915 JH |
1787 | dp->b_actl = ap->a_bp; |
1788 | ap->a_bp->b_actf = dp; | |
ffe6f482 | 1789 | } else { |
e1b76915 JH |
1790 | dp->b_actf->b_actl = ap->a_bp; |
1791 | ap->a_bp->b_actf = dp->b_actf; | |
ffe6f482 | 1792 | } |
e1b76915 JH |
1793 | dp->b_actf = ap->a_bp; |
1794 | ap->a_bp->b_actl = dp; | |
ffe6f482 | 1795 | fnd++; |
ffe6f482 KM |
1796 | wakeup((caddr_t)&nfs_iodwant[i]); |
1797 | break; | |
9238aa59 | 1798 | } |
ffe6f482 KM |
1799 | } |
1800 | if (!fnd) | |
e1b76915 | 1801 | error = nfs_doio(ap->a_bp); |
9238aa59 RM |
1802 | return (error); |
1803 | } | |
1804 | ||
1805 | /* | |
1806 | * Fun and games with i/o | |
1807 | * Essentially play ubasetup() and disk interrupt service routine by | |
1808 | * mapping the data buffer into kernel virtual space and doing the | |
1809 | * nfs read or write rpc's from it. | |
f0f1cbaa KM |
1810 | * If the nfsiod's are not running, this is just called from nfs_strategy(), |
1811 | * otherwise it is called by the nfsiods to do what would normally be | |
9238aa59 RM |
1812 | * partially disk interrupt driven. |
1813 | */ | |
cfef4373 | 1814 | int |
9238aa59 RM |
1815 | nfs_doio(bp) |
1816 | register struct buf *bp; | |
a2907882 | 1817 | { |
a2907882 | 1818 | register struct uio *uiop; |
a2907882 | 1819 | register struct vnode *vp; |
ffe6f482 | 1820 | struct nfsnode *np; |
9238aa59 | 1821 | struct ucred *cr; |
7848989c | 1822 | int error; |
a2907882 KM |
1823 | struct uio uio; |
1824 | struct iovec io; | |
1825 | ||
1826 | vp = bp->b_vp; | |
8c379a26 | 1827 | np = VTONFS(vp); |
a2907882 KM |
1828 | uiop = &uio; |
1829 | uiop->uio_iov = &io; | |
1830 | uiop->uio_iovcnt = 1; | |
a2907882 | 1831 | uiop->uio_segflg = UIO_SYSSPACE; |
2c5b44a2 | 1832 | uiop->uio_procp = bp->b_proc; |
e8540f59 | 1833 | |
a2907882 | 1834 | /* |
9238aa59 RM |
1835 | * For phys i/o, map the b_addr into kernel virtual space using |
1836 | * the Nfsiomap pte's | |
1837 | * Also, add a temporary b_rcred for reading using the process's uid | |
1838 | * and a guess at a group | |
a2907882 | 1839 | */ |
9238aa59 | 1840 | if (bp->b_flags & B_PHYS) { |
26cb2431 KM |
1841 | if (bp->b_flags & B_DIRTY) |
1842 | uiop->uio_procp = pageproc; | |
1843 | cr = crcopy(uiop->uio_procp->p_ucred); | |
7848989c KM |
1844 | /* mapping was already done by vmapbuf */ |
1845 | io.iov_base = bp->b_un.b_addr; | |
e8540f59 KM |
1846 | |
1847 | /* | |
1848 | * And do the i/o rpc | |
1849 | */ | |
e8540f59 | 1850 | io.iov_len = uiop->uio_resid = bp->b_bcount; |
589be24d | 1851 | uiop->uio_offset = bp->b_blkno * DEV_BSIZE; |
e8540f59 KM |
1852 | if (bp->b_flags & B_READ) { |
1853 | uiop->uio_rw = UIO_READ; | |
1854 | nfsstats.read_physios++; | |
26cb2431 | 1855 | bp->b_error = error = nfs_readrpc(vp, uiop, cr); |
8986c97c | 1856 | (void) vnode_pager_uncache(vp); |
e8540f59 KM |
1857 | } else { |
1858 | uiop->uio_rw = UIO_WRITE; | |
1859 | nfsstats.write_physios++; | |
26cb2431 | 1860 | bp->b_error = error = nfs_writerpc(vp, uiop, cr); |
ffe6f482 | 1861 | } |
e8540f59 KM |
1862 | |
1863 | /* | |
1864 | * Finally, release pte's used by physical i/o | |
1865 | */ | |
9238aa59 | 1866 | crfree(cr); |
e8540f59 KM |
1867 | } else { |
1868 | if (bp->b_flags & B_READ) { | |
1869 | io.iov_len = uiop->uio_resid = bp->b_bcount; | |
e8540f59 KM |
1870 | io.iov_base = bp->b_un.b_addr; |
1871 | uiop->uio_rw = UIO_READ; | |
f0f1cbaa KM |
1872 | switch (vp->v_type) { |
1873 | case VREG: | |
1874 | uiop->uio_offset = bp->b_blkno * DEV_BSIZE; | |
1875 | nfsstats.read_bios++; | |
26cb2431 | 1876 | error = nfs_readrpc(vp, uiop, bp->b_rcred); |
f0f1cbaa KM |
1877 | break; |
1878 | case VLNK: | |
1879 | uiop->uio_offset = 0; | |
1880 | nfsstats.readlink_bios++; | |
26cb2431 | 1881 | error = nfs_readlinkrpc(vp, uiop, bp->b_rcred); |
f0f1cbaa KM |
1882 | break; |
1883 | case VDIR: | |
1884 | uiop->uio_offset = bp->b_lblkno; | |
1885 | nfsstats.readdir_bios++; | |
2c5b44a2 KM |
1886 | if (VFSTONFS(vp->v_mount)->nm_flag & NFSMNT_RDIRALOOK) |
1887 | error = nfs_readdirlookrpc(vp, uiop, bp->b_rcred); | |
1888 | else | |
1889 | error = nfs_readdirrpc(vp, uiop, bp->b_rcred); | |
f0f1cbaa KM |
1890 | /* |
1891 | * Save offset cookie in b_blkno. | |
1892 | */ | |
1893 | bp->b_blkno = uiop->uio_offset; | |
1894 | break; | |
1895 | }; | |
1896 | bp->b_error = error; | |
e8540f59 KM |
1897 | } else { |
1898 | io.iov_len = uiop->uio_resid = bp->b_dirtyend | |
1899 | - bp->b_dirtyoff; | |
589be24d | 1900 | uiop->uio_offset = (bp->b_blkno * DEV_BSIZE) |
e8540f59 KM |
1901 | + bp->b_dirtyoff; |
1902 | io.iov_base = bp->b_un.b_addr + bp->b_dirtyoff; | |
1903 | uiop->uio_rw = UIO_WRITE; | |
1904 | nfsstats.write_bios++; | |
f0f1cbaa | 1905 | bp->b_error = error = nfs_writerpc(vp, uiop, |
26cb2431 | 1906 | bp->b_wcred); |
e8540f59 | 1907 | if (error) { |
e8540f59 KM |
1908 | np->n_error = error; |
1909 | np->n_flag |= NWRITEERR; | |
1910 | } | |
1911 | bp->b_dirtyoff = bp->b_dirtyend = 0; | |
1912 | } | |
9238aa59 | 1913 | } |
e8540f59 KM |
1914 | if (error) |
1915 | bp->b_flags |= B_ERROR; | |
1916 | bp->b_resid = uiop->uio_resid; | |
a2907882 | 1917 | biodone(bp); |
9238aa59 RM |
1918 | return (error); |
1919 | } | |
1920 | ||
26cb2431 KM |
1921 | /* |
1922 | * Mmap a file | |
1923 | * | |
1924 | * NB Currently unsupported. | |
1925 | */ | |
1926 | /* ARGSUSED */ | |
cfef4373 | 1927 | int |
9342689a JH |
1928 | nfs_mmap (ap) |
1929 | struct vop_mmap_args *ap; | |
26cb2431 KM |
1930 | { |
1931 | ||
1932 | return (EINVAL); | |
1933 | } | |
1934 | ||
9238aa59 RM |
1935 | /* |
1936 | * Flush all the blocks associated with a vnode. | |
1937 | * Walk through the buffer pool and push any dirty pages | |
1938 | * associated with the vnode. | |
1939 | */ | |
13576453 | 1940 | /* ARGSUSED */ |
cfef4373 | 1941 | int |
9342689a JH |
1942 | nfs_fsync (ap) |
1943 | struct vop_fsync_args *ap; | |
9238aa59 | 1944 | { |
e1b76915 | 1945 | register struct nfsnode *np = VTONFS(ap->a_vp); |
e8540f59 | 1946 | int error = 0; |
9238aa59 | 1947 | |
9238aa59 RM |
1948 | if (np->n_flag & NMODIFIED) { |
1949 | np->n_flag &= ~NMODIFIED; | |
e1b76915 | 1950 | vflushbuf(ap->a_vp, ap->a_waitfor == MNT_WAIT ? B_SYNC : 0); |
9238aa59 | 1951 | } |
9b61ab4a | 1952 | if (np->n_flag & NWRITEERR) { |
e8540f59 | 1953 | error = np->n_error; |
9b61ab4a KM |
1954 | np->n_flag &= ~NWRITEERR; |
1955 | } | |
a2907882 KM |
1956 | return (error); |
1957 | } | |
d002709d | 1958 | |
a4128336 KM |
1959 | /* |
1960 | * NFS advisory byte-level locks. | |
1961 | * Currently unsupported. | |
1962 | */ | |
cfef4373 | 1963 | int |
9342689a JH |
1964 | nfs_advlock (ap) |
1965 | struct vop_advlock_args *ap; | |
a4128336 KM |
1966 | { |
1967 | ||
1968 | return (EOPNOTSUPP); | |
1969 | } | |
1970 | ||
d002709d KM |
1971 | /* |
1972 | * Print out the contents of an nfsnode. | |
1973 | */ | |
cfef4373 | 1974 | int |
9342689a JH |
1975 | nfs_print (ap) |
1976 | struct vop_print_args *ap; | |
d002709d | 1977 | { |
e1b76915 | 1978 | register struct nfsnode *np = VTONFS(ap->a_vp); |
d002709d | 1979 | |
b2d955e4 KM |
1980 | printf("tag VT_NFS, fileid %d fsid 0x%x", |
1981 | np->n_vattr.va_fileid, np->n_vattr.va_fsid); | |
1982 | #ifdef FIFO | |
e1b76915 JH |
1983 | if (ap->a_vp->v_type == VFIFO) |
1984 | fifo_printinfo(ap->a_vp); | |
b2d955e4 | 1985 | #endif /* FIFO */ |
1a1dbccb | 1986 | printf("\n"); |
d002709d | 1987 | } |
9396df75 KM |
1988 | |
1989 | /* | |
1990 | * NFS directory offset lookup. | |
1991 | * Currently unsupported. | |
1992 | */ | |
cfef4373 | 1993 | int |
9342689a JH |
1994 | nfs_blkatoff (ap) |
1995 | struct vop_blkatoff_args *ap; | |
9396df75 KM |
1996 | { |
1997 | ||
1998 | return (EOPNOTSUPP); | |
1999 | } | |
2000 | ||
2001 | /* | |
2002 | * NFS flat namespace lookup. | |
2003 | * Currently unsupported. | |
2004 | */ | |
cfef4373 | 2005 | int |
9342689a JH |
2006 | nfs_vget (ap) |
2007 | struct vop_vget_args *ap; | |
9396df75 KM |
2008 | { |
2009 | ||
2010 | return (EOPNOTSUPP); | |
2011 | } | |
2012 | ||
2013 | /* | |
2014 | * NFS flat namespace allocation. | |
2015 | * Currently unsupported. | |
2016 | */ | |
cfef4373 | 2017 | int |
9342689a JH |
2018 | nfs_valloc (ap) |
2019 | struct vop_valloc_args *ap; | |
9396df75 KM |
2020 | { |
2021 | ||
2022 | return (EOPNOTSUPP); | |
2023 | } | |
2024 | ||
2025 | /* | |
2026 | * NFS flat namespace free. | |
2027 | * Currently unsupported. | |
2028 | */ | |
4c323403 | 2029 | int |
9342689a JH |
2030 | nfs_vfree (ap) |
2031 | struct vop_vfree_args *ap; | |
9396df75 KM |
2032 | { |
2033 | ||
4c323403 | 2034 | return (EOPNOTSUPP); |
9396df75 KM |
2035 | } |
2036 | ||
2037 | /* | |
2038 | * NFS file truncation. | |
2039 | */ | |
cfef4373 | 2040 | int |
9342689a JH |
2041 | nfs_truncate (ap) |
2042 | struct vop_truncate_args *ap; | |
9396df75 KM |
2043 | { |
2044 | ||
2045 | /* Use nfs_setattr */ | |
2046 | printf("nfs_truncate: need to implement!!"); | |
2047 | return (EOPNOTSUPP); | |
2048 | } | |
2049 | ||
2050 | /* | |
2051 | * NFS update. | |
2052 | */ | |
cfef4373 | 2053 | int |
9342689a JH |
2054 | nfs_update (ap) |
2055 | struct vop_update_args *ap; | |
9396df75 KM |
2056 | { |
2057 | ||
2058 | /* Use nfs_setattr */ | |
2059 | printf("nfs_update: need to implement!!"); | |
2060 | return (EOPNOTSUPP); | |
2061 | } | |
9b61ab4a KM |
2062 | |
2063 | /* | |
2064 | * Read wrapper for special devices. | |
2065 | */ | |
2066 | int | |
2067 | nfsspec_read(ap) | |
2068 | struct vop_read_args *ap; | |
2069 | { | |
2070 | extern int (**spec_vnodeop_p)(); | |
2071 | ||
2072 | /* | |
2073 | * Set access flag. | |
2074 | */ | |
2075 | VTONFS(ap->a_vp)->n_flag |= NACC; | |
2076 | return (VOCALL(spec_vnodeop_p, VOFFSET(vop_read), ap)); | |
2077 | } | |
2078 | ||
2079 | /* | |
2080 | * Write wrapper for special devices. | |
2081 | */ | |
2082 | int | |
2083 | nfsspec_write(ap) | |
2084 | struct vop_write_args *ap; | |
2085 | { | |
2086 | extern int (**spec_vnodeop_p)(); | |
2087 | ||
2088 | /* | |
2089 | * Set update flags. | |
2090 | */ | |
2091 | VTONFS(ap->a_vp)->n_flag |= NUPD; | |
2092 | return (VOCALL(spec_vnodeop_p, VOFFSET(vop_write), ap)); | |
2093 | } | |
2094 | ||
2095 | /* | |
2096 | * Close wrapper for special devices. | |
2097 | * | |
2098 | * Update the times on the nfsnode then do device close. | |
2099 | */ | |
2100 | int | |
2101 | nfsspec_close(ap) | |
2102 | struct vop_close_args *ap; | |
2103 | { | |
2104 | USES_VOP_SETATTR; | |
2105 | register struct nfsnode *np = VTONFS(ap->a_vp); | |
2106 | struct vattr vattr; | |
2107 | extern int (**spec_vnodeop_p)(); | |
2108 | ||
2109 | if (np->n_flag & (NACC | NUPD)) { | |
2110 | if (np->n_flag & NACC) | |
2111 | np->n_atim = time; | |
2112 | if (np->n_flag & NUPD) | |
2113 | np->n_mtim = time; | |
2114 | np->n_flag |= NCHG; | |
2115 | if (ap->a_vp->v_usecount == 1 && | |
2116 | (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY) == 0) { | |
2117 | VATTR_NULL(&vattr); | |
2118 | if (np->n_flag & NACC) | |
2119 | vattr.va_atime = np->n_atim; | |
2120 | if (np->n_flag & NUPD) | |
2121 | vattr.va_mtime = np->n_mtim; | |
2122 | (void)VOP_SETATTR(ap->a_vp, &vattr, ap->a_cred, | |
2123 | ap->a_p); | |
2124 | } | |
2125 | } | |
2126 | return (VOCALL(spec_vnodeop_p, VOFFSET(vop_close), ap)); | |
2127 | } | |
2128 | ||
2129 | #ifdef FIFO | |
2130 | /* | |
2131 | * Read wrapper for fifos. | |
2132 | */ | |
2133 | int | |
2134 | nfsfifo_read(ap) | |
2135 | struct vop_read_args *ap; | |
2136 | { | |
2137 | extern int (**fifo_vnodeop_p)(); | |
2138 | ||
2139 | /* | |
2140 | * Set access flag. | |
2141 | */ | |
2142 | VTONFS(ap->a_vp)->n_flag |= NACC; | |
2143 | return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_read), ap)); | |
2144 | } | |
2145 | ||
2146 | /* | |
2147 | * Write wrapper for fifos. | |
2148 | */ | |
2149 | int | |
2150 | nfsfifo_write(ap) | |
2151 | struct vop_write_args *ap; | |
2152 | { | |
2153 | extern int (**fifo_vnodeop_p)(); | |
2154 | ||
2155 | /* | |
2156 | * Set update flag. | |
2157 | */ | |
2158 | VTONFS(ap->a_vp)->n_flag |= NUPD; | |
2159 | return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_write), ap)); | |
2160 | } | |
2161 | ||
2162 | /* | |
2163 | * Close wrapper for fifos. | |
2164 | * | |
2165 | * Update the times on the nfsnode then do fifo close. | |
2166 | */ | |
2167 | int | |
2168 | nfsfifo_close(ap) | |
2169 | struct vop_close_args *ap; | |
2170 | { | |
2171 | USES_VOP_SETATTR; | |
2172 | register struct nfsnode *np = VTONFS(ap->a_vp); | |
2173 | struct vattr vattr; | |
2174 | extern int (**fifo_vnodeop_p)(); | |
2175 | ||
2176 | if (np->n_flag & (NACC | NUPD)) { | |
2177 | if (np->n_flag & NACC) | |
2178 | np->n_atim = time; | |
2179 | if (np->n_flag & NUPD) | |
2180 | np->n_mtim = time; | |
2181 | np->n_flag |= NCHG; | |
2182 | if (ap->a_vp->v_usecount == 1 && | |
2183 | (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY) == 0) { | |
2184 | VATTR_NULL(&vattr); | |
2185 | if (np->n_flag & NACC) | |
2186 | vattr.va_atime = np->n_atim; | |
2187 | if (np->n_flag & NUPD) | |
2188 | vattr.va_mtime = np->n_mtim; | |
2189 | (void)VOP_SETATTR(ap->a_vp, &vattr, ap->a_cred, | |
2190 | ap->a_p); | |
2191 | } | |
2192 | } | |
2193 | return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_close), ap)); | |
2194 | } | |
2195 | #endif /* FIFO */ |