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amd64: declare initializecpu outside of SMP
[dragonfly.git] / sys / vfs / smbfs / smbfs_vnops.c
blobd0f7075b6cbdf06e0d9b85d57d5d73c2c992813a
1 /*
2 * Copyright (c) 2000-2001 Boris Popov
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD: src/sys/fs/smbfs/smbfs_vnops.c,v 1.2.2.8 2003/04/04 08:57:23 tjr Exp $
33 * $DragonFly: src/sys/vfs/smbfs/smbfs_vnops.c,v 1.41 2007/11/20 21:03:50 dillon Exp $
34 */
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/proc.h>
39 #include <sys/priv.h>
40 #include <sys/namei.h>
41 #include <sys/fcntl.h>
42 #include <sys/mount.h>
43 #include <sys/unistd.h>
44 #include <sys/vnode.h>
45 #include <sys/lockf.h>
46
47 #include <vm/vm.h>
48 #include <vm/vm_extern.h>
49 #include <vm/vm_zone.h>
50
51
52 #include <netproto/smb/smb.h>
53 #include <netproto/smb/smb_conn.h>
54 #include <netproto/smb/smb_subr.h>
55
56 #include "smbfs.h"
57 #include "smbfs_node.h"
58 #include "smbfs_subr.h"
59
60 #include <sys/buf.h>
61
62 /*
63 * Prototypes for SMBFS vnode operations
64 */
65 static int smbfs_create(struct vop_old_create_args *);
66 static int smbfs_mknod(struct vop_old_mknod_args *);
67 static int smbfs_open(struct vop_open_args *);
68 static int smbfs_closel(struct vop_close_args *);
69 static int smbfs_access(struct vop_access_args *);
70 static int smbfs_getattr(struct vop_getattr_args *);
71 static int smbfs_setattr(struct vop_setattr_args *);
72 static int smbfs_read(struct vop_read_args *);
73 static int smbfs_write(struct vop_write_args *);
74 static int smbfs_fsync(struct vop_fsync_args *);
75 static int smbfs_remove(struct vop_old_remove_args *);
76 static int smbfs_link(struct vop_old_link_args *);
77 static int smbfs_lookup(struct vop_old_lookup_args *);
78 static int smbfs_rename(struct vop_old_rename_args *);
79 static int smbfs_mkdir(struct vop_old_mkdir_args *);
80 static int smbfs_rmdir(struct vop_old_rmdir_args *);
81 static int smbfs_symlink(struct vop_old_symlink_args *);
82 static int smbfs_readdir(struct vop_readdir_args *);
83 static int smbfs_bmap(struct vop_bmap_args *);
84 static int smbfs_strategy(struct vop_strategy_args *);
85 static int smbfs_print(struct vop_print_args *);
86 static int smbfs_pathconf(struct vop_pathconf_args *ap);
87 static int smbfs_advlock(struct vop_advlock_args *);
88 static int smbfs_getextattr(struct vop_getextattr_args *ap);
89
90 struct vop_ops smbfs_vnode_vops = {
91 .vop_default = vop_defaultop,
92 .vop_access = smbfs_access,
93 .vop_advlock = smbfs_advlock,
94 .vop_bmap = smbfs_bmap,
95 .vop_close = smbfs_closel,
96 .vop_old_create = smbfs_create,
97 .vop_fsync = smbfs_fsync,
98 .vop_getattr = smbfs_getattr,
99 .vop_getpages = smbfs_getpages,
100 .vop_inactive = smbfs_inactive,
101 .vop_ioctl = smbfs_ioctl,
102 .vop_old_link = smbfs_link,
103 .vop_old_lookup = smbfs_lookup,
104 .vop_old_mkdir = smbfs_mkdir,
105 .vop_old_mknod = smbfs_mknod,
106 .vop_open = smbfs_open,
107 .vop_pathconf = smbfs_pathconf,
108 .vop_print = smbfs_print,
109 .vop_putpages = smbfs_putpages,
110 .vop_read = smbfs_read,
111 .vop_readdir = smbfs_readdir,
112 .vop_reclaim = smbfs_reclaim,
113 .vop_old_remove = smbfs_remove,
114 .vop_old_rename = smbfs_rename,
115 .vop_old_rmdir = smbfs_rmdir,
116 .vop_setattr = smbfs_setattr,
117 .vop_strategy = smbfs_strategy,
118 .vop_old_symlink = smbfs_symlink,
119 .vop_write = smbfs_write,
120 .vop_getextattr = smbfs_getextattr
121 /* .vop_setextattr = smbfs_setextattr */
122 };
123
124 /*
125 * smbfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred)
126 */
127 static int
128 smbfs_access(struct vop_access_args *ap)
129 {
130 struct vnode *vp = ap->a_vp;
131 struct smbmount *smp = VTOSMBFS(vp);
132 int mode;
133 int error;
134
135 SMBVDEBUG("\n");
136 mode = ((vp->v_type == VREG) ?
137 smp->sm_args.file_mode : smp->sm_args.dir_mode);
138 error = vop_helper_access(ap, smp->sm_args.uid, smp->sm_args.gid,
139 mode, 0);
140 return (error);
141 }
142
143 /*
144 * smbfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
145 * struct file *a_fp)
146 */
147 /* ARGSUSED */
148 static int
149 smbfs_open(struct vop_open_args *ap)
150 {
151 struct vnode *vp = ap->a_vp;
152 struct smbnode *np = VTOSMB(vp);
153 struct smb_cred scred;
154 struct vattr vattr;
155 int mode = ap->a_mode;
156 int error, accmode;
157
158 SMBVDEBUG("%s,%d\n", np->n_name, np->n_opencount);
159 if (vp->v_type != VREG && vp->v_type != VDIR) {
160 SMBFSERR("open eacces vtype=%d\n", vp->v_type);
161 return EACCES;
162 }
163 if (vp->v_type == VDIR) {
164 if (np->n_opencount == 0)
165 np->n_cached_cred = crhold(ap->a_cred);
166 np->n_opencount++;
167 return (vop_stdopen(ap));
168 }
169 if (np->n_flag & NMODIFIED) {
170 if ((error = smbfs_vinvalbuf(vp, V_SAVE, 1)) == EINTR)
171 return error;
172 smbfs_attr_cacheremove(vp);
173 error = VOP_GETATTR(vp, &vattr);
174 if (error)
175 return error;
176 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
177 } else {
178 error = VOP_GETATTR(vp, &vattr);
179 if (error)
180 return error;
181 if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
182 error = smbfs_vinvalbuf(vp, V_SAVE, 1);
183 if (error == EINTR)
184 return error;
185 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
186 }
187 }
188 if (np->n_opencount) {
189 np->n_opencount++;
190 return (vop_stdopen(ap));
191 }
192 accmode = SMB_AM_OPENREAD;
193 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
194 accmode = SMB_AM_OPENRW;
195 smb_makescred(&scred, curthread, ap->a_cred);
196 error = smbfs_smb_open(np, accmode, &scred);
197 if (error) {
198 if (mode & FWRITE)
199 return EACCES;
200 accmode = SMB_AM_OPENREAD;
201 error = smbfs_smb_open(np, accmode, &scred);
202 }
203 if (!error) {
204 np->n_cached_cred = crhold(ap->a_cred);
205 np->n_opencount++;
206 }
207 smbfs_attr_cacheremove(vp);
208 if (error == 0)
209 vop_stdopen(ap);
210 return error;
211 }
212
213 static int
214 smbfs_closel(struct vop_close_args *ap)
215 {
216 struct vnode *vp = ap->a_vp;
217 struct smbnode *np = VTOSMB(vp);
218 struct smb_cred scred;
219 struct vattr vattr;
220 int error;
221
222 SMBVDEBUG("name=%s, pid=%d, c=%d\n",np->n_name, p->p_pid, np->n_opencount);
223
224 smb_makescred(&scred, curthread, proc0.p_ucred);
225 error = 0;
226
227 if (np->n_opencount == 0) {
228 if (vp->v_type != VDIR)
229 SMBERROR("Negative opencount\n");
230 goto done;
231 }
232 np->n_opencount--;
233 if (vp->v_type == VDIR) {
234 if (np->n_opencount)
235 goto done;
236 if (np->n_dirseq) {
237 smbfs_findclose(np->n_dirseq, &scred);
238 np->n_dirseq = NULL;
239 }
240 } else {
241 error = smbfs_vinvalbuf(vp, V_SAVE, 1);
242 if (np->n_opencount)
243 goto done;
244 VOP_GETATTR(vp, &vattr);
245 error = smbfs_smb_close(np->n_mount->sm_share, np->n_fid,
246 &np->n_mtime, &scred);
247 }
248 crfree(np->n_cached_cred);
249 np->n_cached_cred = NULL;
250 smbfs_attr_cacheremove(vp);
251 done:
252 vop_stdclose(ap);
253 return error;
254 }
255
256 /*
257 * smbfs_getattr call from vfs.
258 *
259 * smbfs_getattr(struct vnode *a_vp, struct vattr *a_vap)
260 */
261 static int
262 smbfs_getattr(struct vop_getattr_args *ap)
263 {
264 struct vnode *vp = ap->a_vp;
265 struct smbnode *np = VTOSMB(vp);
266 struct vattr *va=ap->a_vap;
267 struct smbfattr fattr;
268 struct smb_cred scred;
269 u_quad_t oldsize;
270 int error;
271
272 SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_flag & VROOT) != 0);
273 error = smbfs_attr_cachelookup(vp, va);
274 if (!error)
275 return 0;
276 SMBVDEBUG("not in the cache\n");
277 smb_makescred(&scred, curthread, proc0.p_ucred);
278 oldsize = np->n_size;
279 error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred);
280 if (error) {
281 SMBVDEBUG("error %d\n", error);
282 return error;
283 }
284 smbfs_attr_cacheenter(vp, &fattr);
285 smbfs_attr_cachelookup(vp, va);
286 if (np->n_opencount)
287 np->n_size = oldsize;
288 return 0;
289 }
290
291 /*
292 * smbfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred)
293 */
294 static int
295 smbfs_setattr(struct vop_setattr_args *ap)
296 {
297 struct vnode *vp = ap->a_vp;
298 struct smbnode *np = VTOSMB(vp);
299 struct vattr *vap = ap->a_vap;
300 struct timespec *mtime, *atime;
301 struct smb_cred scred;
302 struct smb_share *ssp = np->n_mount->sm_share;
303 struct smb_vc *vcp = SSTOVC(ssp);
304 u_quad_t tsize = 0;
305 int isreadonly, doclose, error = 0;
306
307 SMBVDEBUG("\n");
308 if (vap->va_flags != VNOVAL)
309 return EOPNOTSUPP;
310 isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY);
311 /*
312 * Disallow write attempts if the filesystem is mounted read-only.
313 */
314 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
315 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
316 vap->va_mode != (mode_t)VNOVAL) && isreadonly)
317 return EROFS;
318 smb_makescred(&scred, curthread, ap->a_cred);
319 if (vap->va_size != VNOVAL) {
320 switch (vp->v_type) {
321 case VDIR:
322 return EISDIR;
323 case VREG:
324 break;
325 default:
326 return EINVAL;
327 };
328 if (isreadonly)
329 return EROFS;
330 doclose = 0;
331 vnode_pager_setsize(vp, (u_long)vap->va_size);
332 tsize = np->n_size;
333 np->n_size = vap->va_size;
334 if (np->n_opencount == 0) {
335 error = smbfs_smb_open(np, SMB_AM_OPENRW, &scred);
336 if (error == 0)
337 doclose = 1;
338 }
339 if (error == 0)
340 error = smbfs_smb_setfsize(np, vap->va_size, &scred);
341 if (doclose)
342 smbfs_smb_close(ssp, np->n_fid, NULL, &scred);
343 if (error) {
344 np->n_size = tsize;
345 vnode_pager_setsize(vp, (u_long)tsize);
346 return error;
347 }
348 }
349 mtime = atime = NULL;
350 if (vap->va_mtime.tv_sec != VNOVAL)
351 mtime = &vap->va_mtime;
352 if (vap->va_atime.tv_sec != VNOVAL)
353 atime = &vap->va_atime;
354 if (mtime != atime) {
355 if (ap->a_cred->cr_uid != VTOSMBFS(vp)->sm_args.uid &&
356 (error = priv_check_cred(ap->a_cred, PRIV_VFS_SETATTR, 0)) &&
357 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
358 (error = VOP_EACCESS(vp, VWRITE, ap->a_cred))))
359 return (error);
360 #if 0
361 if (mtime == NULL)
362 mtime = &np->n_mtime;
363 if (atime == NULL)
364 atime = &np->n_atime;
365 #endif
366 /*
367 * If file is opened, then we can use handle based calls.
368 * If not, use path based ones.
369 */
370 if (np->n_opencount == 0) {
371 if (vcp->vc_flags & SMBV_WIN95) {
372 error = VOP_OPEN(vp, FWRITE, ap->a_cred, NULL);
373 if (!error) {
374 /* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
375 VOP_GETATTR(vp, &vattr);*/
376 if (mtime)
377 np->n_mtime = *mtime;
378 VOP_CLOSE(vp, FWRITE);
379 }
380 } else if ((vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS)) {
381 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred);
382 /* error = smbfs_smb_setpattrNT(np, 0, mtime, atime, &scred);*/
383 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) {
384 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred);
385 } else {
386 error = smbfs_smb_setpattr(np, 0, mtime, &scred);
387 }
388 } else {
389 if (vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS) {
390 error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
391 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) {
392 error = smbfs_smb_setftime(np, mtime, atime, &scred);
393 } else {
394 /*
395 * I have no idea how to handle this for core
396 * level servers. The possible solution is to
397 * update mtime after file is closed.
398 */
399 SMBERROR("can't update times on an opened file\n");
400 }
401 }
402 }
403 /*
404 * Invalidate attribute cache in case if server doesn't set
405 * required attributes.
406 */
407 smbfs_attr_cacheremove(vp); /* invalidate cache */
408 VOP_GETATTR(vp, vap);
409 np->n_mtime.tv_sec = vap->va_mtime.tv_sec;
410 return error;
411 }
412 /*
413 * smbfs_read call.
414 *
415 * smbfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
416 * struct ucred *a_cred)
417 */
418 static int
419 smbfs_read(struct vop_read_args *ap)
420 {
421 struct vnode *vp = ap->a_vp;
422 struct uio *uio = ap->a_uio;
423
424 SMBVDEBUG("\n");
425 if (vp->v_type != VREG && vp->v_type != VDIR)
426 return EPERM;
427 return smbfs_readvnode(vp, uio, ap->a_cred);
428 }
429
430 /*
431 * smbfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
432 * struct ucred *a_cred)
433 */
434 static int
435 smbfs_write(struct vop_write_args *ap)
436 {
437 struct vnode *vp = ap->a_vp;
438 struct uio *uio = ap->a_uio;
439
440 SMBVDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
441 if (vp->v_type != VREG)
442 return (EPERM);
443 return smbfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
444 }
445 /*
446 * smbfs_create call
447 * Create a regular file. On entry the directory to contain the file being
448 * created is locked. We must release before we return.
449 *
450 * smbfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
451 * struct componentname *a_cnp, struct vattr *a_vap)
452 */
453 static int
454 smbfs_create(struct vop_old_create_args *ap)
455 {
456 struct vnode *dvp = ap->a_dvp;
457 struct vattr *vap = ap->a_vap;
458 struct vnode **vpp=ap->a_vpp;
459 struct componentname *cnp = ap->a_cnp;
460 struct smbnode *dnp = VTOSMB(dvp);
461 struct vnode *vp;
462 struct vattr vattr;
463 struct smbfattr fattr;
464 struct smb_cred scred;
465 char *name = cnp->cn_nameptr;
466 int nmlen = cnp->cn_namelen;
467 int error;
468
469
470 SMBVDEBUG("\n");
471 *vpp = NULL;
472 if (vap->va_type != VREG)
473 return EOPNOTSUPP;
474 if ((error = VOP_GETATTR(dvp, &vattr)))
475 return error;
476 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
477
478 error = smbfs_smb_create(dnp, name, nmlen, &scred);
479 if (error)
480 return error;
481 error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred);
482 if (error)
483 return error;
484 error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp);
485 if (error)
486 return error;
487 *vpp = vp;
488 return error;
489 }
490
491 /*
492 * smbfs_remove(struct vnode *a_dvp, struct vnode *a_vp,
493 * struct componentname *a_cnp)
494 */
495 static int
496 smbfs_remove(struct vop_old_remove_args *ap)
497 {
498 struct vnode *vp = ap->a_vp;
499 /* struct vnode *dvp = ap->a_dvp;*/
500 struct componentname *cnp = ap->a_cnp;
501 struct smbnode *np = VTOSMB(vp);
502 struct smb_cred scred;
503 int error;
504
505 if (vp->v_type == VDIR || np->n_opencount || vp->v_sysref.refcnt > 1)
506 return EPERM;
507 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
508 error = smbfs_smb_delete(np, &scred);
509 return error;
510 }
511
512 /*
513 * smbfs_file rename call
514 *
515 * smbfs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
516 * struct componentname *a_fcnp, struct vnode *a_tdvp,
517 * struct vnode *a_tvp, struct componentname *a_tcnp)
518 */
519 static int
520 smbfs_rename(struct vop_old_rename_args *ap)
521 {
522 struct vnode *fvp = ap->a_fvp;
523 struct vnode *tvp = ap->a_tvp;
524 struct vnode *fdvp = ap->a_fdvp;
525 struct vnode *tdvp = ap->a_tdvp;
526 struct componentname *tcnp = ap->a_tcnp;
527 /* struct componentname *fcnp = ap->a_fcnp;*/
528 struct smb_cred scred;
529 u_int16_t flags = 6;
530 int error=0;
531
532 /* Check for cross-device rename */
533 if ((fvp->v_mount != tdvp->v_mount) ||
534 (tvp && (fvp->v_mount != tvp->v_mount))) {
535 error = EXDEV;
536 goto out;
537 }
538
539 if (tvp && tvp->v_sysref.refcnt > 1) {
540 error = EBUSY;
541 goto out;
542 }
543 flags = 0x10; /* verify all writes */
544 if (fvp->v_type == VDIR) {
545 flags |= 2;
546 } else if (fvp->v_type == VREG) {
547 flags |= 1;
548 } else {
549 error = EINVAL;
550 goto out;
551 }
552 smb_makescred(&scred, tcnp->cn_td, tcnp->cn_cred);
553 /*
554 * It seems that Samba doesn't implement SMB_COM_MOVE call...
555 */
556 #ifdef notnow
557 if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) {
558 error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp),
559 tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred);
560 } else
561 #endif
562 {
563 /*
564 * We have to do the work atomicaly
565 */
566 if (tvp && tvp != fvp) {
567 error = smbfs_smb_delete(VTOSMB(tvp), &scred);
568 if (error)
569 goto out_cacherem;
570 }
571 error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp),
572 tcnp->cn_nameptr, tcnp->cn_namelen, &scred);
573 }
574
575 out_cacherem:
576 smbfs_attr_cacheremove(fdvp);
577 smbfs_attr_cacheremove(tdvp);
578 out:
579 if (tdvp == tvp)
580 vrele(tdvp);
581 else
582 vput(tdvp);
583 if (tvp)
584 vput(tvp);
585 vrele(fdvp);
586 vrele(fvp);
587 #ifdef possible_mistake
588 #error x
589 vgone_vxlocked(fvp);
590 if (tvp)
591 vgone_vxlocked(tvp);
592 #endif
593 return error;
594 }
595
596 /*
597 * somtime it will come true...
598 *
599 * smbfs_link(struct vnode *a_tdvp, struct vnode *a_vp,
600 * struct componentname *a_cnp)
601 */
602 static int
603 smbfs_link(struct vop_old_link_args *ap)
604 {
605 return EOPNOTSUPP;
606 }
607
608 /*
609 * smbfs_symlink link create call.
610 * Sometime it will be functional...
611 *
612 * smbfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
613 * struct componentname *a_cnp, struct vattr *a_vap,
614 * char *a_target)
615 */
616 static int
617 smbfs_symlink(struct vop_old_symlink_args *ap)
618 {
619 return EOPNOTSUPP;
620 }
621
622 static int
623 smbfs_mknod(struct vop_old_mknod_args *ap)
624 {
625 return EOPNOTSUPP;
626 }
627
628 /*
629 * smbfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
630 * struct componentname *a_cnp, struct vattr *a_vap)
631 */
632 static int
633 smbfs_mkdir(struct vop_old_mkdir_args *ap)
634 {
635 struct vnode *dvp = ap->a_dvp;
636 /* struct vattr *vap = ap->a_vap;*/
637 struct vnode *vp;
638 struct componentname *cnp = ap->a_cnp;
639 struct smbnode *dnp = VTOSMB(dvp);
640 struct vattr vattr;
641 struct smb_cred scred;
642 struct smbfattr fattr;
643 char *name = cnp->cn_nameptr;
644 int len = cnp->cn_namelen;
645 int error;
646
647 if ((error = VOP_GETATTR(dvp, &vattr))) {
648 return error;
649 }
650 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.'))))
651 return EEXIST;
652 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
653 error = smbfs_smb_mkdir(dnp, name, len, &scred);
654 if (error)
655 return error;
656 error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred);
657 if (error)
658 return error;
659 error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp);
660 if (error)
661 return error;
662 *ap->a_vpp = vp;
663 return 0;
664 }
665
666 /*
667 * smbfs_remove directory call
668 *
669 * smbfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
670 * struct componentname *a_cnp)
671 */
672 static int
673 smbfs_rmdir(struct vop_old_rmdir_args *ap)
674 {
675 struct vnode *vp = ap->a_vp;
676 struct vnode *dvp = ap->a_dvp;
677 struct componentname *cnp = ap->a_cnp;
678 /* struct smbmount *smp = VTOSMBFS(vp);*/
679 struct smbnode *dnp = VTOSMB(dvp);
680 struct smbnode *np = VTOSMB(vp);
681 struct smb_cred scred;
682 int error;
683
684 if (dvp == vp)
685 return EINVAL;
686
687 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
688 error = smbfs_smb_rmdir(np, &scred);
689 dnp->n_flag |= NMODIFIED;
690 smbfs_attr_cacheremove(dvp);
691 return error;
692 }
693
694 /*
695 * smbfs_readdir call
696 *
697 * smbfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
698 * int *a_eofflag, off_t *a_cookies, int a_ncookies)
699 */
700 static int
701 smbfs_readdir(struct vop_readdir_args *ap)
702 {
703 struct vnode *vp = ap->a_vp;
704 struct uio *uio = ap->a_uio;
705 int error;
706
707 if (vp->v_type != VDIR)
708 return (EPERM);
709 #ifdef notnow
710 if (ap->a_ncookies) {
711 kprintf("smbfs_readdir: no support for cookies now...");
712 return (EOPNOTSUPP);
713 }
714 #endif
715 if ((error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY)) == 0) {
716 error = smbfs_readvnode(vp, uio, ap->a_cred);
717 vn_unlock(vp);
718 }
719 return error;
720 }
721
722 /*
723 * smbfs_fsync(struct vnode *a_vp, int a_waitfor)
724 */
725 /* ARGSUSED */
726 static int
727 smbfs_fsync(struct vop_fsync_args *ap)
728 {
729 /* return (smb_flush(ap->a_vp, ap->a_waitfor, curthread, 1));*/
730 return (0);
731 }
732
733 /*
734 * smbfs_print(struct vnode *a_vp)
735 */
736 static int
737 smbfs_print(struct vop_print_args *ap)
738 {
739 struct vnode *vp = ap->a_vp;
740 struct smbnode *np = VTOSMB(vp);
741
742 if (np == NULL) {
743 kprintf("no smbnode data\n");
744 return (0);
745 }
746 kprintf("tag VT_SMBFS, name = %s, parent = %p, opencount = %d",
747 np->n_name, np->n_parent ? np->n_parent : NULL,
748 np->n_opencount);
749 lockmgr_printinfo(&vp->v_lock);
750 kprintf("\n");
751 return (0);
752 }
753
754 /*
755 * smbfs_pathconf(struct vnode *vp, int name, register_t *retval)
756 */
757 static int
758 smbfs_pathconf(struct vop_pathconf_args *ap)
759 {
760 struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp));
761 struct smb_vc *vcp = SSTOVC(smp->sm_share);
762 register_t *retval = ap->a_retval;
763 int error = 0;
764
765 switch (ap->a_name) {
766 case _PC_LINK_MAX:
767 *retval = 0;
768 break;
769 case _PC_NAME_MAX:
770 *retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12;
771 break;
772 case _PC_PATH_MAX:
773 *retval = 800; /* XXX: a correct one ? */
774 break;
775 default:
776 error = EINVAL;
777 }
778 return error;
779 }
780
781 /*
782 * smbfs_strategy(struct vnode *a_vp, struct bio *a_bio)
783 */
784 static int
785 smbfs_strategy(struct vop_strategy_args *ap)
786 {
787 struct bio *bio = ap->a_bio;
788 struct thread *td = NULL;
789 int error = 0;
790
791 SMBVDEBUG("\n");
792 if (bio->bio_flags & BIO_SYNC)
793 td = curthread; /* XXX */
794
795 if (bio->bio_flags & BIO_SYNC)
796 error = smbfs_doio(ap->a_vp, bio, proc0.p_ucred, td);
797 return error;
798 }
799
800 /*
801 * smbfs_bmap(struct vnode *a_vp, off_t a_loffset,
802 * off_t *a_doffsetp, int *a_runp, int *a_runb)
803 */
804 static int
805 smbfs_bmap(struct vop_bmap_args *ap)
806 {
807 if (ap->a_doffsetp != NULL)
808 *ap->a_doffsetp = ap->a_loffset;
809 if (ap->a_runp != NULL)
810 *ap->a_runp = 0;
811 if (ap->a_runb != NULL)
812 *ap->a_runb = 0;
813 return (0);
814 }
815
816 /*
817 * smbfs_ioctl(struct vnode *a_vp, u_long a_command, caddr_t a_data,
818 * int fflag, struct ucred *cred, struct proc *p)
819 */
820 int
821 smbfs_ioctl(struct vop_ioctl_args *ap)
822 {
823 return EINVAL;
824 }
825
826 static char smbfs_atl[] = "rhsvda";
827
828 /*
829 * smbfs_getextattr(struct vnode *a_vp, char *a_name, struct uio *a_uio,
830 * struct ucred *a_cred)
831 */
832 static int
833 smbfs_getextattr(struct vop_getextattr_args *ap)
834 {
835 struct vnode *vp = ap->a_vp;
836 struct ucred *cred = ap->a_cred;
837 struct uio *uio = ap->a_uio;
838 const char *name = ap->a_name;
839 struct smbnode *np = VTOSMB(vp);
840 struct vattr vattr;
841 char buf[10];
842 int i, attr, error;
843
844 error = VOP_EACCESS(vp, VREAD, cred);
845 if (error)
846 return error;
847 error = VOP_GETATTR(vp, &vattr);
848 if (error)
849 return error;
850 if (strcmp(name, "dosattr") == 0) {
851 attr = np->n_dosattr;
852 for (i = 0; i < 6; i++, attr >>= 1)
853 buf[i] = (attr & 1) ? smbfs_atl[i] : '-';
854 buf[i] = 0;
855 error = uiomove(buf, i, uio);
856
857 } else
858 error = EINVAL;
859 return error;
860 }
861
862 /*
863 * Since we expected to support F_GETLK (and SMB protocol has no such function),
864 * it is necessary to use lf_advlock(). It would be nice if this function had
865 * a callback mechanism because it will help to improve a level of consistency.
866 *
867 * smbfs_advlock(struct vnode *a_vp, caddr_t a_id, int a_op,
868 * struct flock *a_fl, int a_flags)
869 */
870 int
871 smbfs_advlock(struct vop_advlock_args *ap)
872 {
873 struct vnode *vp = ap->a_vp;
874 struct smbnode *np = VTOSMB(vp);
875 struct flock *fl = ap->a_fl;
876 caddr_t id = (caddr_t)1 /* ap->a_id */;
877 /* int flags = ap->a_flags;*/
878 struct thread *td = curthread; /* XXX */
879 struct smb_cred scred;
880 off_t start, end, size;
881 int error, lkop;
882
883 if (vp->v_type == VDIR) {
884 /*
885 * SMB protocol have no support for directory locking.
886 * Although locks can be processed on local machine, I don't
887 * think that this is a good idea, because some programs
888 * can work wrong assuming directory is locked. So, we just
889 * return 'operation not supported
890 */
891 return EOPNOTSUPP;
892 }
893 size = np->n_size;
894 switch (fl->l_whence) {
895 case SEEK_SET:
896 case SEEK_CUR:
897 start = fl->l_start;
898 break;
899 case SEEK_END:
900 start = fl->l_start + size;
901 default:
902 return EINVAL;
903 }
904 if (start < 0)
905 return EINVAL;
906 if (fl->l_len == 0)
907 end = -1;
908 else {
909 end = start + fl->l_len - 1;
910 if (end < start)
911 return EINVAL;
912 }
913 smb_makescred(&scred, td, td->td_proc ? td->td_proc->p_ucred : NULL);
914 switch (ap->a_op) {
915 case F_SETLK:
916 switch (fl->l_type) {
917 case F_WRLCK:
918 lkop = SMB_LOCK_EXCL;
919 break;
920 case F_RDLCK:
921 lkop = SMB_LOCK_SHARED;
922 break;
923 case F_UNLCK:
924 lkop = SMB_LOCK_RELEASE;
925 break;
926 default:
927 return EINVAL;
928 }
929 error = lf_advlock(ap, &np->n_lockf, size);
930 if (error)
931 break;
932 lkop = SMB_LOCK_EXCL;
933 error = smbfs_smb_lock(np, lkop, id, start, end, &scred);
934 if (error) {
935 ap->a_op = F_UNLCK;
936 lf_advlock(ap, &np->n_lockf, size);
937 }
938 break;
939 case F_UNLCK:
940 lf_advlock(ap, &np->n_lockf, size);
941 error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, id, start, end, &scred);
942 break;
943 case F_GETLK:
944 error = lf_advlock(ap, &np->n_lockf, size);
945 break;
946 default:
947 return EINVAL;
948 }
949 return error;
950 }
951
952 static int
953 smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen, int nameiop)
954 {
955 static const char *badchars = "*/:<>;?";
956 static const char *badchars83 = " +|,";
957 const char *cp;
958 int i, error;
959
960 /*
961 * Backslash characters, being a path delimiter, are prohibited
962 * within a path component even for LOOKUP operations.
963 */
964 if (index(name, '\\') != NULL)
965 return ENOENT;
966
967 if (nameiop == NAMEI_LOOKUP)
968 return 0;
969 error = ENOENT;
970 if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) {
971 /*
972 * Name should conform 8.3 format
973 */
974 if (nmlen > 12)
975 return ENAMETOOLONG;
976 cp = index(name, '.');
977 if (cp == NULL)
978 return error;
979 if (cp == name || (cp - name) > 8)
980 return error;
981 cp = index(cp + 1, '.');
982 if (cp != NULL)
983 return error;
984 for (cp = name, i = 0; i < nmlen; i++, cp++)
985 if (index(badchars83, *cp) != NULL)
986 return error;
987 }
988 for (cp = name, i = 0; i < nmlen; i++, cp++)
989 if (index(badchars, *cp) != NULL)
990 return error;
991 return 0;
992 }
993
994 /*
995 * Things go even weird without fixed inode numbers...
996 *
997 * smbfs_lookup(struct vnode *a_dvp, struct vnode **a_vpp,
998 * struct componentname *a_cnp)
999 */
1000 int
1001 smbfs_lookup(struct vop_old_lookup_args *ap)
1002 {
1003 struct componentname *cnp = ap->a_cnp;
1004 struct thread *td = cnp->cn_td;
1005 struct vnode *dvp = ap->a_dvp;
1006 struct vnode **vpp = ap->a_vpp;
1007 struct vnode *vp;
1008 struct smbmount *smp;
1009 struct mount *mp = dvp->v_mount;
1010 struct smbnode *dnp;
1011 struct smbfattr fattr, *fap;
1012 struct smb_cred scred;
1013 char *name = cnp->cn_nameptr;
1014 int flags = cnp->cn_flags;
1015 int nameiop = cnp->cn_nameiop;
1016 int nmlen = cnp->cn_namelen;
1017 int lockparent, wantparent, error, isdot;
1018
1019 SMBVDEBUG("\n");
1020 cnp->cn_flags &= ~CNP_PDIRUNLOCK;
1021 *vpp = NULL;
1022 if (dvp->v_type != VDIR)
1023 return ENOTDIR;
1024 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
1025 SMBFSERR("invalid '..'\n");
1026 return EIO;
1027 }
1028 #ifdef SMB_VNODE_DEBUG
1029 {
1030 char *cp, c;
1031
1032 cp = name + nmlen;
1033 c = *cp;
1034 *cp = 0;
1035 SMBVDEBUG("%d '%s' in '%s' id=d\n", nameiop, name,
1036 VTOSMB(dvp)->n_name);
1037 *cp = c;
1038 }
1039 #endif
1040 if ((mp->mnt_flag & MNT_RDONLY) && nameiop != NAMEI_LOOKUP)
1041 return EROFS;
1042 if ((error = VOP_EACCESS(dvp, VEXEC, cnp->cn_cred)) != 0)
1043 return error;
1044 lockparent = flags & CNP_LOCKPARENT;
1045 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
1046 smp = VFSTOSMBFS(mp);
1047 dnp = VTOSMB(dvp);
1048 isdot = (nmlen == 1 && name[0] == '.');
1049
1050 error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop);
1051
1052 if (error)
1053 return ENOENT;
1054
1055 error = 0;
1056 smb_makescred(&scred, td, cnp->cn_cred);
1057 fap = &fattr;
1058 if (flags & CNP_ISDOTDOT) {
1059 error = smbfs_smb_lookup(VTOSMB(dnp->n_parent), NULL, 0, fap,
1060 &scred);
1061 SMBVDEBUG("result of dotdot lookup: %d\n", error);
1062 } else {
1063 fap = &fattr;
1064 error = smbfs_smb_lookup(dnp, name, nmlen, fap, &scred);
1065 /* if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.')*/
1066 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error);
1067 }
1068 if (error && error != ENOENT)
1069 return error;
1070 if (error) { /* entry not found */
1071 /*
1072 * Handle RENAME or CREATE case...
1073 */
1074 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent) {
1075 error = VOP_EACCESS(dvp, VWRITE, cnp->cn_cred);
1076 if (error)
1077 return error;
1078 if (!lockparent) {
1079 vn_unlock(dvp);
1080 cnp->cn_flags |= CNP_PDIRUNLOCK;
1081 }
1082 return (EJUSTRETURN);
1083 }
1084 return ENOENT;
1085 }/* else {
1086 SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
1087 }*/
1088 /*
1089 * handle DELETE case ...
1090 */
1091 if (nameiop == NAMEI_DELETE) { /* delete last component */
1092 error = VOP_EACCESS(dvp, VWRITE, cnp->cn_cred);
1093 if (error)
1094 return error;
1095 if (isdot) {
1096 vref(dvp);
1097 *vpp = dvp;
1098 return 0;
1099 }
1100 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1101 if (error)
1102 return error;
1103 *vpp = vp;
1104 if (!lockparent) {
1105 vn_unlock(dvp);
1106 cnp->cn_flags |= CNP_PDIRUNLOCK;
1107 }
1108 return 0;
1109 }
1110 if (nameiop == NAMEI_RENAME && wantparent) {
1111 error = VOP_EACCESS(dvp, VWRITE, cnp->cn_cred);
1112 if (error)
1113 return error;
1114 if (isdot)
1115 return EISDIR;
1116 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1117 if (error)
1118 return error;
1119 *vpp = vp;
1120 if (!lockparent) {
1121 vn_unlock(dvp);
1122 cnp->cn_flags |= CNP_PDIRUNLOCK;
1123 }
1124 return 0;
1125 }
1126 if (flags & CNP_ISDOTDOT) {
1127 vn_unlock(dvp);
1128 error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp);
1129 if (error) {
1130 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
1131 return error;
1132 }
1133 if (lockparent) {
1134 error = vn_lock(dvp, LK_EXCLUSIVE);
1135 if (error) {
1136 cnp->cn_flags |= CNP_PDIRUNLOCK;
1137 vput(vp);
1138 return error;
1139 }
1140 }
1141 *vpp = vp;
1142 } else if (isdot) {
1143 vref(dvp);
1144 *vpp = dvp;
1145 } else {
1146 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1147 if (error)
1148 return error;
1149 *vpp = vp;
1150 SMBVDEBUG("lookup: getnewvp!\n");
1151 if (!lockparent) {
1152 vn_unlock(dvp);
1153 cnp->cn_flags |= CNP_PDIRUNLOCK;
1154 }
1155 }
1156 return 0;
1157 }
DragonFly BSD