HAMMER 60I/Many: Mirroring
[dragonfly.git] / sys / vfs / smbfs / smbfs_vnops.c
blob4138e8efa3013434e1dff45eb82cbfe4eb110e43
1 /*
2 * Copyright (c) 2000-2001 Boris Popov
3 * All rights reserved.
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.
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.
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 $
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/proc.h>
39 #include <sys/namei.h>
40 #include <sys/fcntl.h>
41 #include <sys/mount.h>
42 #include <sys/unistd.h>
43 #include <sys/vnode.h>
44 #include <sys/lockf.h>
46 #include <vm/vm.h>
47 #include <vm/vm_extern.h>
48 #include <vm/vm_zone.h>
51 #include <netproto/smb/smb.h>
52 #include <netproto/smb/smb_conn.h>
53 #include <netproto/smb/smb_subr.h>
55 #include "smbfs.h"
56 #include "smbfs_node.h"
57 #include "smbfs_subr.h"
59 #include <sys/buf.h>
62 * Prototypes for SMBFS vnode operations
64 static int smbfs_create(struct vop_old_create_args *);
65 static int smbfs_mknod(struct vop_old_mknod_args *);
66 static int smbfs_open(struct vop_open_args *);
67 static int smbfs_closel(struct vop_close_args *);
68 static int smbfs_access(struct vop_access_args *);
69 static int smbfs_getattr(struct vop_getattr_args *);
70 static int smbfs_setattr(struct vop_setattr_args *);
71 static int smbfs_read(struct vop_read_args *);
72 static int smbfs_write(struct vop_write_args *);
73 static int smbfs_fsync(struct vop_fsync_args *);
74 static int smbfs_remove(struct vop_old_remove_args *);
75 static int smbfs_link(struct vop_old_link_args *);
76 static int smbfs_lookup(struct vop_old_lookup_args *);
77 static int smbfs_rename(struct vop_old_rename_args *);
78 static int smbfs_mkdir(struct vop_old_mkdir_args *);
79 static int smbfs_rmdir(struct vop_old_rmdir_args *);
80 static int smbfs_symlink(struct vop_old_symlink_args *);
81 static int smbfs_readdir(struct vop_readdir_args *);
82 static int smbfs_bmap(struct vop_bmap_args *);
83 static int smbfs_strategy(struct vop_strategy_args *);
84 static int smbfs_print(struct vop_print_args *);
85 static int smbfs_pathconf(struct vop_pathconf_args *ap);
86 static int smbfs_advlock(struct vop_advlock_args *);
87 static int smbfs_getextattr(struct vop_getextattr_args *ap);
89 struct vop_ops smbfs_vnode_vops = {
90 .vop_default = vop_defaultop,
91 .vop_access = smbfs_access,
92 .vop_advlock = smbfs_advlock,
93 .vop_bmap = smbfs_bmap,
94 .vop_close = smbfs_closel,
95 .vop_old_create = smbfs_create,
96 .vop_fsync = smbfs_fsync,
97 .vop_getattr = smbfs_getattr,
98 .vop_getpages = smbfs_getpages,
99 .vop_inactive = smbfs_inactive,
100 .vop_ioctl = smbfs_ioctl,
101 .vop_old_link = smbfs_link,
102 .vop_old_lookup = smbfs_lookup,
103 .vop_old_mkdir = smbfs_mkdir,
104 .vop_old_mknod = smbfs_mknod,
105 .vop_open = smbfs_open,
106 .vop_pathconf = smbfs_pathconf,
107 .vop_print = smbfs_print,
108 .vop_putpages = smbfs_putpages,
109 .vop_read = smbfs_read,
110 .vop_readdir = smbfs_readdir,
111 .vop_reclaim = smbfs_reclaim,
112 .vop_old_remove = smbfs_remove,
113 .vop_old_rename = smbfs_rename,
114 .vop_old_rmdir = smbfs_rmdir,
115 .vop_setattr = smbfs_setattr,
116 .vop_strategy = smbfs_strategy,
117 .vop_old_symlink = smbfs_symlink,
118 .vop_write = smbfs_write,
119 .vop_getextattr = smbfs_getextattr
120 /* .vop_setextattr = smbfs_setextattr */
124 * smbfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred)
126 static int
127 smbfs_access(struct vop_access_args *ap)
129 struct vnode *vp = ap->a_vp;
130 struct ucred *cred = ap->a_cred;
131 u_int mode = ap->a_mode;
132 struct smbmount *smp = VTOSMBFS(vp);
133 int error = 0;
135 SMBVDEBUG("\n");
136 if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
137 switch (vp->v_type) {
138 case VREG: case VDIR: case VLNK:
139 return EROFS;
140 default:
141 break;
144 if (cred->cr_uid == 0)
145 return 0;
146 if (cred->cr_uid != smp->sm_args.uid) {
147 mode >>= 3;
148 if (!groupmember(smp->sm_args.gid, cred))
149 mode >>= 3;
151 error = (((vp->v_type == VREG) ? smp->sm_args.file_mode : smp->sm_args.dir_mode) & mode) == mode ? 0 : EACCES;
152 return error;
156 * smbfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
157 * struct file *a_fp)
159 /* ARGSUSED */
160 static int
161 smbfs_open(struct vop_open_args *ap)
163 struct vnode *vp = ap->a_vp;
164 struct smbnode *np = VTOSMB(vp);
165 struct smb_cred scred;
166 struct vattr vattr;
167 int mode = ap->a_mode;
168 int error, accmode;
170 SMBVDEBUG("%s,%d\n", np->n_name, np->n_opencount);
171 if (vp->v_type != VREG && vp->v_type != VDIR) {
172 SMBFSERR("open eacces vtype=%d\n", vp->v_type);
173 return EACCES;
175 if (vp->v_type == VDIR) {
176 if (np->n_opencount == 0)
177 np->n_cached_cred = crhold(ap->a_cred);
178 np->n_opencount++;
179 return (vop_stdopen(ap));
181 if (np->n_flag & NMODIFIED) {
182 if ((error = smbfs_vinvalbuf(vp, V_SAVE, 1)) == EINTR)
183 return error;
184 smbfs_attr_cacheremove(vp);
185 error = VOP_GETATTR(vp, &vattr);
186 if (error)
187 return error;
188 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
189 } else {
190 error = VOP_GETATTR(vp, &vattr);
191 if (error)
192 return error;
193 if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
194 error = smbfs_vinvalbuf(vp, V_SAVE, 1);
195 if (error == EINTR)
196 return error;
197 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
200 if (np->n_opencount) {
201 np->n_opencount++;
202 return (vop_stdopen(ap));
204 accmode = SMB_AM_OPENREAD;
205 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
206 accmode = SMB_AM_OPENRW;
207 smb_makescred(&scred, curthread, ap->a_cred);
208 error = smbfs_smb_open(np, accmode, &scred);
209 if (error) {
210 if (mode & FWRITE)
211 return EACCES;
212 accmode = SMB_AM_OPENREAD;
213 error = smbfs_smb_open(np, accmode, &scred);
215 if (!error) {
216 np->n_cached_cred = crhold(ap->a_cred);
217 np->n_opencount++;
219 smbfs_attr_cacheremove(vp);
220 if (error == 0)
221 vop_stdopen(ap);
222 return error;
225 static int
226 smbfs_closel(struct vop_close_args *ap)
228 struct vnode *vp = ap->a_vp;
229 struct smbnode *np = VTOSMB(vp);
230 struct smb_cred scred;
231 struct vattr vattr;
232 int error;
234 SMBVDEBUG("name=%s, pid=%d, c=%d\n",np->n_name, p->p_pid, np->n_opencount);
236 smb_makescred(&scred, curthread, proc0.p_ucred);
237 error = 0;
239 if (np->n_opencount == 0) {
240 if (vp->v_type != VDIR)
241 SMBERROR("Negative opencount\n");
242 goto done;
244 np->n_opencount--;
245 if (vp->v_type == VDIR) {
246 if (np->n_opencount)
247 goto done;
248 if (np->n_dirseq) {
249 smbfs_findclose(np->n_dirseq, &scred);
250 np->n_dirseq = NULL;
252 } else {
253 error = smbfs_vinvalbuf(vp, V_SAVE, 1);
254 if (np->n_opencount)
255 goto done;
256 VOP_GETATTR(vp, &vattr);
257 error = smbfs_smb_close(np->n_mount->sm_share, np->n_fid,
258 &np->n_mtime, &scred);
260 crfree(np->n_cached_cred);
261 np->n_cached_cred = NULL;
262 smbfs_attr_cacheremove(vp);
263 done:
264 vop_stdclose(ap);
265 return error;
269 * smbfs_getattr call from vfs.
271 * smbfs_getattr(struct vnode *a_vp, struct vattr *a_vap)
273 static int
274 smbfs_getattr(struct vop_getattr_args *ap)
276 struct vnode *vp = ap->a_vp;
277 struct smbnode *np = VTOSMB(vp);
278 struct vattr *va=ap->a_vap;
279 struct smbfattr fattr;
280 struct smb_cred scred;
281 u_quad_t oldsize;
282 int error;
284 SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_flag & VROOT) != 0);
285 error = smbfs_attr_cachelookup(vp, va);
286 if (!error)
287 return 0;
288 SMBVDEBUG("not in the cache\n");
289 smb_makescred(&scred, curthread, proc0.p_ucred);
290 oldsize = np->n_size;
291 error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred);
292 if (error) {
293 SMBVDEBUG("error %d\n", error);
294 return error;
296 smbfs_attr_cacheenter(vp, &fattr);
297 smbfs_attr_cachelookup(vp, va);
298 if (np->n_opencount)
299 np->n_size = oldsize;
300 return 0;
304 * smbfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred)
306 static int
307 smbfs_setattr(struct vop_setattr_args *ap)
309 struct vnode *vp = ap->a_vp;
310 struct smbnode *np = VTOSMB(vp);
311 struct vattr *vap = ap->a_vap;
312 struct timespec *mtime, *atime;
313 struct smb_cred scred;
314 struct smb_share *ssp = np->n_mount->sm_share;
315 struct smb_vc *vcp = SSTOVC(ssp);
316 u_quad_t tsize = 0;
317 int isreadonly, doclose, error = 0;
319 SMBVDEBUG("\n");
320 if (vap->va_flags != VNOVAL)
321 return EOPNOTSUPP;
322 isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY);
324 * Disallow write attempts if the filesystem is mounted read-only.
326 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
327 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
328 vap->va_mode != (mode_t)VNOVAL) && isreadonly)
329 return EROFS;
330 smb_makescred(&scred, curthread, ap->a_cred);
331 if (vap->va_size != VNOVAL) {
332 switch (vp->v_type) {
333 case VDIR:
334 return EISDIR;
335 case VREG:
336 break;
337 default:
338 return EINVAL;
340 if (isreadonly)
341 return EROFS;
342 doclose = 0;
343 vnode_pager_setsize(vp, (u_long)vap->va_size);
344 tsize = np->n_size;
345 np->n_size = vap->va_size;
346 if (np->n_opencount == 0) {
347 error = smbfs_smb_open(np, SMB_AM_OPENRW, &scred);
348 if (error == 0)
349 doclose = 1;
351 if (error == 0)
352 error = smbfs_smb_setfsize(np, vap->va_size, &scred);
353 if (doclose)
354 smbfs_smb_close(ssp, np->n_fid, NULL, &scred);
355 if (error) {
356 np->n_size = tsize;
357 vnode_pager_setsize(vp, (u_long)tsize);
358 return error;
361 mtime = atime = NULL;
362 if (vap->va_mtime.tv_sec != VNOVAL)
363 mtime = &vap->va_mtime;
364 if (vap->va_atime.tv_sec != VNOVAL)
365 atime = &vap->va_atime;
366 if (mtime != atime) {
367 if (ap->a_cred->cr_uid != VTOSMBFS(vp)->sm_args.uid &&
368 (error = suser_cred(ap->a_cred, PRISON_ROOT)) &&
369 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
370 (error = VOP_ACCESS(vp, VWRITE, ap->a_cred))))
371 return (error);
372 #if 0
373 if (mtime == NULL)
374 mtime = &np->n_mtime;
375 if (atime == NULL)
376 atime = &np->n_atime;
377 #endif
379 * If file is opened, then we can use handle based calls.
380 * If not, use path based ones.
382 if (np->n_opencount == 0) {
383 if (vcp->vc_flags & SMBV_WIN95) {
384 error = VOP_OPEN(vp, FWRITE, ap->a_cred, NULL);
385 if (!error) {
386 /* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
387 VOP_GETATTR(vp, &vattr);*/
388 if (mtime)
389 np->n_mtime = *mtime;
390 VOP_CLOSE(vp, FWRITE);
392 } else if ((vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS)) {
393 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred);
394 /* error = smbfs_smb_setpattrNT(np, 0, mtime, atime, &scred);*/
395 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) {
396 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred);
397 } else {
398 error = smbfs_smb_setpattr(np, 0, mtime, &scred);
400 } else {
401 if (vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS) {
402 error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
403 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) {
404 error = smbfs_smb_setftime(np, mtime, atime, &scred);
405 } else {
407 * I have no idea how to handle this for core
408 * level servers. The possible solution is to
409 * update mtime after file is closed.
411 SMBERROR("can't update times on an opened file\n");
416 * Invalidate attribute cache in case if server doesn't set
417 * required attributes.
419 smbfs_attr_cacheremove(vp); /* invalidate cache */
420 VOP_GETATTR(vp, vap);
421 np->n_mtime.tv_sec = vap->va_mtime.tv_sec;
422 return error;
425 * smbfs_read call.
427 * smbfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
428 * struct ucred *a_cred)
430 static int
431 smbfs_read(struct vop_read_args *ap)
433 struct vnode *vp = ap->a_vp;
434 struct uio *uio = ap->a_uio;
436 SMBVDEBUG("\n");
437 if (vp->v_type != VREG && vp->v_type != VDIR)
438 return EPERM;
439 return smbfs_readvnode(vp, uio, ap->a_cred);
443 * smbfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
444 * struct ucred *a_cred)
446 static int
447 smbfs_write(struct vop_write_args *ap)
449 struct vnode *vp = ap->a_vp;
450 struct uio *uio = ap->a_uio;
452 SMBVDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
453 if (vp->v_type != VREG)
454 return (EPERM);
455 return smbfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
458 * smbfs_create call
459 * Create a regular file. On entry the directory to contain the file being
460 * created is locked. We must release before we return.
462 * smbfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
463 * struct componentname *a_cnp, struct vattr *a_vap)
465 static int
466 smbfs_create(struct vop_old_create_args *ap)
468 struct vnode *dvp = ap->a_dvp;
469 struct vattr *vap = ap->a_vap;
470 struct vnode **vpp=ap->a_vpp;
471 struct componentname *cnp = ap->a_cnp;
472 struct smbnode *dnp = VTOSMB(dvp);
473 struct vnode *vp;
474 struct vattr vattr;
475 struct smbfattr fattr;
476 struct smb_cred scred;
477 char *name = cnp->cn_nameptr;
478 int nmlen = cnp->cn_namelen;
479 int error;
482 SMBVDEBUG("\n");
483 *vpp = NULL;
484 if (vap->va_type != VREG)
485 return EOPNOTSUPP;
486 if ((error = VOP_GETATTR(dvp, &vattr)))
487 return error;
488 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
490 error = smbfs_smb_create(dnp, name, nmlen, &scred);
491 if (error)
492 return error;
493 error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred);
494 if (error)
495 return error;
496 error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp);
497 if (error)
498 return error;
499 *vpp = vp;
500 return error;
504 * smbfs_remove(struct vnode *a_dvp, struct vnode *a_vp,
505 * struct componentname *a_cnp)
507 static int
508 smbfs_remove(struct vop_old_remove_args *ap)
510 struct vnode *vp = ap->a_vp;
511 /* struct vnode *dvp = ap->a_dvp;*/
512 struct componentname *cnp = ap->a_cnp;
513 struct smbnode *np = VTOSMB(vp);
514 struct smb_cred scred;
515 int error;
517 if (vp->v_type == VDIR || np->n_opencount || vp->v_sysref.refcnt > 1)
518 return EPERM;
519 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
520 error = smbfs_smb_delete(np, &scred);
521 return error;
525 * smbfs_file rename call
527 * smbfs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
528 * struct componentname *a_fcnp, struct vnode *a_tdvp,
529 * struct vnode *a_tvp, struct componentname *a_tcnp)
531 static int
532 smbfs_rename(struct vop_old_rename_args *ap)
534 struct vnode *fvp = ap->a_fvp;
535 struct vnode *tvp = ap->a_tvp;
536 struct vnode *fdvp = ap->a_fdvp;
537 struct vnode *tdvp = ap->a_tdvp;
538 struct componentname *tcnp = ap->a_tcnp;
539 /* struct componentname *fcnp = ap->a_fcnp;*/
540 struct smb_cred scred;
541 u_int16_t flags = 6;
542 int error=0;
544 /* Check for cross-device rename */
545 if ((fvp->v_mount != tdvp->v_mount) ||
546 (tvp && (fvp->v_mount != tvp->v_mount))) {
547 error = EXDEV;
548 goto out;
551 if (tvp && tvp->v_sysref.refcnt > 1) {
552 error = EBUSY;
553 goto out;
555 flags = 0x10; /* verify all writes */
556 if (fvp->v_type == VDIR) {
557 flags |= 2;
558 } else if (fvp->v_type == VREG) {
559 flags |= 1;
560 } else {
561 error = EINVAL;
562 goto out;
564 smb_makescred(&scred, tcnp->cn_td, tcnp->cn_cred);
566 * It seems that Samba doesn't implement SMB_COM_MOVE call...
568 #ifdef notnow
569 if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) {
570 error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp),
571 tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred);
572 } else
573 #endif
576 * We have to do the work atomicaly
578 if (tvp && tvp != fvp) {
579 error = smbfs_smb_delete(VTOSMB(tvp), &scred);
580 if (error)
581 goto out_cacherem;
583 error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp),
584 tcnp->cn_nameptr, tcnp->cn_namelen, &scred);
587 out_cacherem:
588 smbfs_attr_cacheremove(fdvp);
589 smbfs_attr_cacheremove(tdvp);
590 out:
591 if (tdvp == tvp)
592 vrele(tdvp);
593 else
594 vput(tdvp);
595 if (tvp)
596 vput(tvp);
597 vrele(fdvp);
598 vrele(fvp);
599 #ifdef possible_mistake
600 #error x
601 vgone_vxlocked(fvp);
602 if (tvp)
603 vgone_vxlocked(tvp);
604 #endif
605 return error;
609 * somtime it will come true...
611 * smbfs_link(struct vnode *a_tdvp, struct vnode *a_vp,
612 * struct componentname *a_cnp)
614 static int
615 smbfs_link(struct vop_old_link_args *ap)
617 return EOPNOTSUPP;
621 * smbfs_symlink link create call.
622 * Sometime it will be functional...
624 * smbfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
625 * struct componentname *a_cnp, struct vattr *a_vap,
626 * char *a_target)
628 static int
629 smbfs_symlink(struct vop_old_symlink_args *ap)
631 return EOPNOTSUPP;
634 static int
635 smbfs_mknod(struct vop_old_mknod_args *ap)
637 return EOPNOTSUPP;
641 * smbfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
642 * struct componentname *a_cnp, struct vattr *a_vap)
644 static int
645 smbfs_mkdir(struct vop_old_mkdir_args *ap)
647 struct vnode *dvp = ap->a_dvp;
648 /* struct vattr *vap = ap->a_vap;*/
649 struct vnode *vp;
650 struct componentname *cnp = ap->a_cnp;
651 struct smbnode *dnp = VTOSMB(dvp);
652 struct vattr vattr;
653 struct smb_cred scred;
654 struct smbfattr fattr;
655 char *name = cnp->cn_nameptr;
656 int len = cnp->cn_namelen;
657 int error;
659 if ((error = VOP_GETATTR(dvp, &vattr))) {
660 return error;
662 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.'))))
663 return EEXIST;
664 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
665 error = smbfs_smb_mkdir(dnp, name, len, &scred);
666 if (error)
667 return error;
668 error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred);
669 if (error)
670 return error;
671 error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp);
672 if (error)
673 return error;
674 *ap->a_vpp = vp;
675 return 0;
679 * smbfs_remove directory call
681 * smbfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
682 * struct componentname *a_cnp)
684 static int
685 smbfs_rmdir(struct vop_old_rmdir_args *ap)
687 struct vnode *vp = ap->a_vp;
688 struct vnode *dvp = ap->a_dvp;
689 struct componentname *cnp = ap->a_cnp;
690 /* struct smbmount *smp = VTOSMBFS(vp);*/
691 struct smbnode *dnp = VTOSMB(dvp);
692 struct smbnode *np = VTOSMB(vp);
693 struct smb_cred scred;
694 int error;
696 if (dvp == vp)
697 return EINVAL;
699 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred);
700 error = smbfs_smb_rmdir(np, &scred);
701 dnp->n_flag |= NMODIFIED;
702 smbfs_attr_cacheremove(dvp);
703 return error;
707 * smbfs_readdir call
709 * smbfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
710 * int *a_eofflag, off_t *a_cookies, int a_ncookies)
712 static int
713 smbfs_readdir(struct vop_readdir_args *ap)
715 struct vnode *vp = ap->a_vp;
716 struct uio *uio = ap->a_uio;
717 int error;
719 if (vp->v_type != VDIR)
720 return (EPERM);
721 #ifdef notnow
722 if (ap->a_ncookies) {
723 kprintf("smbfs_readdir: no support for cookies now...");
724 return (EOPNOTSUPP);
726 #endif
727 if ((error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY)) == 0) {
728 error = smbfs_readvnode(vp, uio, ap->a_cred);
729 vn_unlock(vp);
731 return error;
735 * smbfs_fsync(struct vnode *a_vp, int a_waitfor)
737 /* ARGSUSED */
738 static int
739 smbfs_fsync(struct vop_fsync_args *ap)
741 /* return (smb_flush(ap->a_vp, ap->a_waitfor, curthread, 1));*/
742 return (0);
746 * smbfs_print(struct vnode *a_vp)
748 static int
749 smbfs_print(struct vop_print_args *ap)
751 struct vnode *vp = ap->a_vp;
752 struct smbnode *np = VTOSMB(vp);
754 if (np == NULL) {
755 kprintf("no smbnode data\n");
756 return (0);
758 kprintf("tag VT_SMBFS, name = %s, parent = %p, opencount = %d",
759 np->n_name, np->n_parent ? np->n_parent : NULL,
760 np->n_opencount);
761 lockmgr_printinfo(&vp->v_lock);
762 kprintf("\n");
763 return (0);
767 * smbfs_pathconf(struct vnode *vp, int name, register_t *retval)
769 static int
770 smbfs_pathconf(struct vop_pathconf_args *ap)
772 struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp));
773 struct smb_vc *vcp = SSTOVC(smp->sm_share);
774 register_t *retval = ap->a_retval;
775 int error = 0;
777 switch (ap->a_name) {
778 case _PC_LINK_MAX:
779 *retval = 0;
780 break;
781 case _PC_NAME_MAX:
782 *retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12;
783 break;
784 case _PC_PATH_MAX:
785 *retval = 800; /* XXX: a correct one ? */
786 break;
787 default:
788 error = EINVAL;
790 return error;
794 * smbfs_strategy(struct vnode *a_vp, struct bio *a_bio)
796 static int
797 smbfs_strategy(struct vop_strategy_args *ap)
799 struct bio *bio = ap->a_bio;
800 struct buf *bp = bio->bio_buf;
801 struct thread *td = NULL;
802 int error = 0;
804 SMBVDEBUG("\n");
805 if ((bp->b_flags & B_ASYNC) == 0)
806 td = curthread; /* XXX */
808 if ((bp->b_flags & B_ASYNC) == 0 )
809 error = smbfs_doio(ap->a_vp, bio, proc0.p_ucred, td);
810 return error;
814 * smbfs_bmap(struct vnode *a_vp, off_t a_loffset,
815 * off_t *a_doffsetp, int *a_runp, int *a_runb)
817 static int
818 smbfs_bmap(struct vop_bmap_args *ap)
820 if (ap->a_doffsetp != NULL)
821 *ap->a_doffsetp = ap->a_loffset;
822 if (ap->a_runp != NULL)
823 *ap->a_runp = 0;
824 if (ap->a_runb != NULL)
825 *ap->a_runb = 0;
826 return (0);
830 * smbfs_ioctl(struct vnode *a_vp, u_long a_command, caddr_t a_data,
831 * int fflag, struct ucred *cred, struct proc *p)
834 smbfs_ioctl(struct vop_ioctl_args *ap)
836 return EINVAL;
839 static char smbfs_atl[] = "rhsvda";
842 * smbfs_getextattr(struct vnode *a_vp, char *a_name, struct uio *a_uio,
843 * struct ucred *a_cred)
845 static int
846 smbfs_getextattr(struct vop_getextattr_args *ap)
848 struct vnode *vp = ap->a_vp;
849 struct ucred *cred = ap->a_cred;
850 struct uio *uio = ap->a_uio;
851 const char *name = ap->a_name;
852 struct smbnode *np = VTOSMB(vp);
853 struct vattr vattr;
854 char buf[10];
855 int i, attr, error;
857 error = VOP_ACCESS(vp, VREAD, cred);
858 if (error)
859 return error;
860 error = VOP_GETATTR(vp, &vattr);
861 if (error)
862 return error;
863 if (strcmp(name, "dosattr") == 0) {
864 attr = np->n_dosattr;
865 for (i = 0; i < 6; i++, attr >>= 1)
866 buf[i] = (attr & 1) ? smbfs_atl[i] : '-';
867 buf[i] = 0;
868 error = uiomove(buf, i, uio);
870 } else
871 error = EINVAL;
872 return error;
876 * Since we expected to support F_GETLK (and SMB protocol has no such function),
877 * it is necessary to use lf_advlock(). It would be nice if this function had
878 * a callback mechanism because it will help to improve a level of consistency.
880 * smbfs_advlock(struct vnode *a_vp, caddr_t a_id, int a_op,
881 * struct flock *a_fl, int a_flags)
884 smbfs_advlock(struct vop_advlock_args *ap)
886 struct vnode *vp = ap->a_vp;
887 struct smbnode *np = VTOSMB(vp);
888 struct flock *fl = ap->a_fl;
889 caddr_t id = (caddr_t)1 /* ap->a_id */;
890 /* int flags = ap->a_flags;*/
891 struct thread *td = curthread; /* XXX */
892 struct smb_cred scred;
893 off_t start, end, size;
894 int error, lkop;
896 if (vp->v_type == VDIR) {
898 * SMB protocol have no support for directory locking.
899 * Although locks can be processed on local machine, I don't
900 * think that this is a good idea, because some programs
901 * can work wrong assuming directory is locked. So, we just
902 * return 'operation not supported
904 return EOPNOTSUPP;
906 size = np->n_size;
907 switch (fl->l_whence) {
908 case SEEK_SET:
909 case SEEK_CUR:
910 start = fl->l_start;
911 break;
912 case SEEK_END:
913 start = fl->l_start + size;
914 default:
915 return EINVAL;
917 if (start < 0)
918 return EINVAL;
919 if (fl->l_len == 0)
920 end = -1;
921 else {
922 end = start + fl->l_len - 1;
923 if (end < start)
924 return EINVAL;
926 smb_makescred(&scred, td, td->td_proc ? td->td_proc->p_ucred : NULL);
927 switch (ap->a_op) {
928 case F_SETLK:
929 switch (fl->l_type) {
930 case F_WRLCK:
931 lkop = SMB_LOCK_EXCL;
932 break;
933 case F_RDLCK:
934 lkop = SMB_LOCK_SHARED;
935 break;
936 case F_UNLCK:
937 lkop = SMB_LOCK_RELEASE;
938 break;
939 default:
940 return EINVAL;
942 error = lf_advlock(ap, &np->n_lockf, size);
943 if (error)
944 break;
945 lkop = SMB_LOCK_EXCL;
946 error = smbfs_smb_lock(np, lkop, id, start, end, &scred);
947 if (error) {
948 ap->a_op = F_UNLCK;
949 lf_advlock(ap, &np->n_lockf, size);
951 break;
952 case F_UNLCK:
953 lf_advlock(ap, &np->n_lockf, size);
954 error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, id, start, end, &scred);
955 break;
956 case F_GETLK:
957 error = lf_advlock(ap, &np->n_lockf, size);
958 break;
959 default:
960 return EINVAL;
962 return error;
965 static int
966 smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen, int nameiop)
968 static const char *badchars = "*/:<>;?";
969 static const char *badchars83 = " +|,";
970 const char *cp;
971 int i, error;
974 * Backslash characters, being a path delimiter, are prohibited
975 * within a path component even for LOOKUP operations.
977 if (index(name, '\\') != NULL)
978 return ENOENT;
980 if (nameiop == NAMEI_LOOKUP)
981 return 0;
982 error = ENOENT;
983 if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) {
985 * Name should conform 8.3 format
987 if (nmlen > 12)
988 return ENAMETOOLONG;
989 cp = index(name, '.');
990 if (cp == NULL)
991 return error;
992 if (cp == name || (cp - name) > 8)
993 return error;
994 cp = index(cp + 1, '.');
995 if (cp != NULL)
996 return error;
997 for (cp = name, i = 0; i < nmlen; i++, cp++)
998 if (index(badchars83, *cp) != NULL)
999 return error;
1001 for (cp = name, i = 0; i < nmlen; i++, cp++)
1002 if (index(badchars, *cp) != NULL)
1003 return error;
1004 return 0;
1008 * Things go even weird without fixed inode numbers...
1010 * smbfs_lookup(struct vnode *a_dvp, struct vnode **a_vpp,
1011 * struct componentname *a_cnp)
1014 smbfs_lookup(struct vop_old_lookup_args *ap)
1016 struct componentname *cnp = ap->a_cnp;
1017 struct thread *td = cnp->cn_td;
1018 struct vnode *dvp = ap->a_dvp;
1019 struct vnode **vpp = ap->a_vpp;
1020 struct vnode *vp;
1021 struct smbmount *smp;
1022 struct mount *mp = dvp->v_mount;
1023 struct smbnode *dnp;
1024 struct smbfattr fattr, *fap;
1025 struct smb_cred scred;
1026 char *name = cnp->cn_nameptr;
1027 int flags = cnp->cn_flags;
1028 int nameiop = cnp->cn_nameiop;
1029 int nmlen = cnp->cn_namelen;
1030 int lockparent, wantparent, error, isdot;
1032 SMBVDEBUG("\n");
1033 cnp->cn_flags &= ~CNP_PDIRUNLOCK;
1034 *vpp = NULL;
1035 if (dvp->v_type != VDIR)
1036 return ENOTDIR;
1037 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
1038 SMBFSERR("invalid '..'\n");
1039 return EIO;
1041 #ifdef SMB_VNODE_DEBUG
1043 char *cp, c;
1045 cp = name + nmlen;
1046 c = *cp;
1047 *cp = 0;
1048 SMBVDEBUG("%d '%s' in '%s' id=d\n", nameiop, name,
1049 VTOSMB(dvp)->n_name);
1050 *cp = c;
1052 #endif
1053 if ((mp->mnt_flag & MNT_RDONLY) && nameiop != NAMEI_LOOKUP)
1054 return EROFS;
1055 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred)) != 0)
1056 return error;
1057 lockparent = flags & CNP_LOCKPARENT;
1058 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
1059 smp = VFSTOSMBFS(mp);
1060 dnp = VTOSMB(dvp);
1061 isdot = (nmlen == 1 && name[0] == '.');
1063 error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop);
1065 if (error)
1066 return ENOENT;
1068 error = 0;
1069 smb_makescred(&scred, td, cnp->cn_cred);
1070 fap = &fattr;
1071 if (flags & CNP_ISDOTDOT) {
1072 error = smbfs_smb_lookup(VTOSMB(dnp->n_parent), NULL, 0, fap,
1073 &scred);
1074 SMBVDEBUG("result of dotdot lookup: %d\n", error);
1075 } else {
1076 fap = &fattr;
1077 error = smbfs_smb_lookup(dnp, name, nmlen, fap, &scred);
1078 /* if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.')*/
1079 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error);
1081 if (error && error != ENOENT)
1082 return error;
1083 if (error) { /* entry not found */
1085 * Handle RENAME or CREATE case...
1087 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent) {
1088 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred);
1089 if (error)
1090 return error;
1091 if (!lockparent) {
1092 vn_unlock(dvp);
1093 cnp->cn_flags |= CNP_PDIRUNLOCK;
1095 return (EJUSTRETURN);
1097 return ENOENT;
1098 }/* else {
1099 SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
1102 * handle DELETE case ...
1104 if (nameiop == NAMEI_DELETE) { /* delete last component */
1105 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred);
1106 if (error)
1107 return error;
1108 if (isdot) {
1109 vref(dvp);
1110 *vpp = dvp;
1111 return 0;
1113 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1114 if (error)
1115 return error;
1116 *vpp = vp;
1117 if (!lockparent) {
1118 vn_unlock(dvp);
1119 cnp->cn_flags |= CNP_PDIRUNLOCK;
1121 return 0;
1123 if (nameiop == NAMEI_RENAME && wantparent) {
1124 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred);
1125 if (error)
1126 return error;
1127 if (isdot)
1128 return EISDIR;
1129 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1130 if (error)
1131 return error;
1132 *vpp = vp;
1133 if (!lockparent) {
1134 vn_unlock(dvp);
1135 cnp->cn_flags |= CNP_PDIRUNLOCK;
1137 return 0;
1139 if (flags & CNP_ISDOTDOT) {
1140 vn_unlock(dvp);
1141 error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp);
1142 if (error) {
1143 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
1144 return error;
1146 if (lockparent) {
1147 error = vn_lock(dvp, LK_EXCLUSIVE);
1148 if (error) {
1149 cnp->cn_flags |= CNP_PDIRUNLOCK;
1150 vput(vp);
1151 return error;
1154 *vpp = vp;
1155 } else if (isdot) {
1156 vref(dvp);
1157 *vpp = dvp;
1158 } else {
1159 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1160 if (error)
1161 return error;
1162 *vpp = vp;
1163 SMBVDEBUG("lookup: getnewvp!\n");
1164 if (!lockparent) {
1165 vn_unlock(dvp);
1166 cnp->cn_flags |= CNP_PDIRUNLOCK;
1169 return 0;