2 * Copyright (c) 2000-2001 Boris Popov
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/namei.h>
37 #include <sys/kernel.h>
41 #include <sys/fcntl.h>
42 #include <sys/mount.h>
43 #include <sys/unistd.h>
44 #include <sys/vnode.h>
45 #include <sys/limits.h>
46 #include <sys/lockf.h>
49 #include <vm/vm_extern.h>
52 #include <netsmb/smb.h>
53 #include <netsmb/smb_conn.h>
54 #include <netsmb/smb_subr.h>
56 #include <fs/smbfs/smbfs.h>
57 #include <fs/smbfs/smbfs_node.h>
58 #include <fs/smbfs/smbfs_subr.h>
61 * Prototypes for SMBFS vnode operations
63 static vop_create_t smbfs_create;
64 static vop_mknod_t smbfs_mknod;
65 static vop_open_t smbfs_open;
66 static vop_close_t smbfs_close;
67 static vop_access_t smbfs_access;
68 static vop_getattr_t smbfs_getattr;
69 static vop_setattr_t smbfs_setattr;
70 static vop_read_t smbfs_read;
71 static vop_write_t smbfs_write;
72 static vop_fsync_t smbfs_fsync;
73 static vop_remove_t smbfs_remove;
74 static vop_link_t smbfs_link;
75 static vop_lookup_t smbfs_lookup;
76 static vop_rename_t smbfs_rename;
77 static vop_mkdir_t smbfs_mkdir;
78 static vop_rmdir_t smbfs_rmdir;
79 static vop_symlink_t smbfs_symlink;
80 static vop_readdir_t smbfs_readdir;
81 static vop_strategy_t smbfs_strategy;
82 static vop_print_t smbfs_print;
83 static vop_pathconf_t smbfs_pathconf;
84 static vop_advlock_t smbfs_advlock;
85 static vop_getextattr_t smbfs_getextattr;
87 struct vop_vector smbfs_vnodeops = {
88 .vop_default = &default_vnodeops,
90 .vop_access = smbfs_access,
91 .vop_advlock = smbfs_advlock,
92 .vop_close = smbfs_close,
93 .vop_create = smbfs_create,
94 .vop_fsync = smbfs_fsync,
95 .vop_getattr = smbfs_getattr,
96 .vop_getextattr = smbfs_getextattr,
97 .vop_getpages = smbfs_getpages,
98 .vop_inactive = smbfs_inactive,
99 .vop_ioctl = smbfs_ioctl,
100 .vop_link = smbfs_link,
101 .vop_lookup = smbfs_lookup,
102 .vop_mkdir = smbfs_mkdir,
103 .vop_mknod = smbfs_mknod,
104 .vop_open = smbfs_open,
105 .vop_pathconf = smbfs_pathconf,
106 .vop_print = smbfs_print,
107 .vop_putpages = smbfs_putpages,
108 .vop_read = smbfs_read,
109 .vop_readdir = smbfs_readdir,
110 .vop_reclaim = smbfs_reclaim,
111 .vop_remove = smbfs_remove,
112 .vop_rename = smbfs_rename,
113 .vop_rmdir = smbfs_rmdir,
114 .vop_setattr = smbfs_setattr,
115 /* .vop_setextattr = smbfs_setextattr,*/
116 .vop_strategy = smbfs_strategy,
117 .vop_symlink = smbfs_symlink,
118 .vop_write = smbfs_write,
123 struct vop_access_args /* {
126 struct ucred *a_cred;
130 struct vnode *vp = ap->a_vp;
131 mode_t mode = ap->a_mode;
133 struct smbmount *smp = VTOSMBFS(vp);
136 if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
137 switch (vp->v_type) {
138 case VREG: case VDIR: case VLNK:
144 mpmode = vp->v_type == VREG ? smp->sm_file_mode : smp->sm_dir_mode;
145 return (vaccess(vp->v_type, mpmode, smp->sm_uid,
146 smp->sm_gid, ap->a_mode, ap->a_cred, NULL));
152 struct vop_open_args /* {
155 struct ucred *a_cred;
159 struct vnode *vp = ap->a_vp;
160 struct smbnode *np = VTOSMB(vp);
161 struct smb_cred scred;
163 int mode = ap->a_mode;
166 SMBVDEBUG("%s,%d\n", np->n_name, (np->n_flag & NOPEN) != 0);
167 if (vp->v_type != VREG && vp->v_type != VDIR) {
168 SMBFSERR("open eacces vtype=%d\n", vp->v_type);
171 if (vp->v_type == VDIR) {
175 if (np->n_flag & NMODIFIED) {
176 if ((error = smbfs_vinvalbuf(vp, ap->a_td)) == EINTR)
178 smbfs_attr_cacheremove(vp);
179 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td);
182 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
184 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td);
187 if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
188 error = smbfs_vinvalbuf(vp, ap->a_td);
191 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
194 if ((np->n_flag & NOPEN) != 0)
197 * Use DENYNONE to give unixy semantics of permitting
198 * everything not forbidden by permissions. Ie denial
199 * is up to server with clients/openers needing to use
200 * advisory locks for further control.
202 accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
203 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
204 accmode = SMB_SM_DENYNONE|SMB_AM_OPENRW;
205 smb_makescred(&scred, ap->a_td, ap->a_cred);
206 error = smbfs_smb_open(np, accmode, &scred);
210 else if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
211 accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
212 error = smbfs_smb_open(np, accmode, &scred);
217 vnode_create_vobject_off(ap->a_vp, vattr.va_size, ap->a_td);
219 smbfs_attr_cacheremove(vp);
225 struct vop_close_args /* {
226 struct vnodeop_desc *a_desc;
229 struct ucred *a_cred;
233 struct vnode *vp = ap->a_vp;
234 struct thread *td = ap->a_td;
235 struct smbnode *np = VTOSMB(vp);
236 struct smb_cred scred;
238 if (vp->v_type == VDIR && (np->n_flag & NOPEN) != 0 &&
239 np->n_dirseq != NULL) {
240 smb_makescred(&scred, td, ap->a_cred);
241 smbfs_findclose(np->n_dirseq, &scred);
248 * smbfs_getattr call from vfs.
252 struct vop_getattr_args /* {
255 struct ucred *a_cred;
259 struct vnode *vp = ap->a_vp;
260 struct smbnode *np = VTOSMB(vp);
261 struct vattr *va=ap->a_vap;
262 struct smbfattr fattr;
263 struct smb_cred scred;
267 SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_vflag & VV_ROOT) != 0);
268 error = smbfs_attr_cachelookup(vp, va);
271 SMBVDEBUG("not in the cache\n");
272 smb_makescred(&scred, ap->a_td, ap->a_cred);
273 oldsize = np->n_size;
274 error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred);
276 SMBVDEBUG("error %d\n", error);
279 smbfs_attr_cacheenter(vp, &fattr);
280 smbfs_attr_cachelookup(vp, va);
281 if (np->n_flag & NOPEN)
282 np->n_size = oldsize;
288 struct vop_setattr_args /* {
291 struct ucred *a_cred;
295 struct vnode *vp = ap->a_vp;
296 struct smbnode *np = VTOSMB(vp);
297 struct vattr *vap = ap->a_vap;
298 struct timespec *mtime, *atime;
299 struct smb_cred scred;
300 struct smb_share *ssp = np->n_mount->sm_share;
301 struct smb_vc *vcp = SSTOVC(ssp);
303 int isreadonly, doclose, error = 0;
306 if (vap->va_flags != VNOVAL)
308 isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY);
310 * Disallow write attempts if the filesystem is mounted read-only.
312 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
313 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
314 vap->va_mode != (mode_t)VNOVAL) && isreadonly)
316 smb_makescred(&scred, ap->a_td, ap->a_cred);
317 if (vap->va_size != VNOVAL) {
318 switch (vp->v_type) {
329 vnode_pager_setsize(vp, (u_long)vap->va_size);
331 np->n_size = vap->va_size;
332 if ((np->n_flag & NOPEN) == 0) {
333 error = smbfs_smb_open(np,
334 SMB_SM_DENYNONE|SMB_AM_OPENRW,
340 error = smbfs_smb_setfsize(np, vap->va_size, &scred);
342 smbfs_smb_close(ssp, np->n_fid, NULL, &scred);
345 vnode_pager_setsize(vp, (u_long)tsize);
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_uid &&
356 (error = suser_cred(ap->a_cred, SUSER_ALLOWJAIL)) &&
357 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
358 (error = VOP_ACCESS(vp, VWRITE, ap->a_cred, ap->a_td))))
362 mtime = &np->n_mtime;
364 atime = &np->n_atime;
367 * If file is opened, then we can use handle based calls.
368 * If not, use path based ones.
370 if ((np->n_flag & NOPEN) == 0) {
371 if (vcp->vc_flags & SMBV_WIN95) {
372 error = VOP_OPEN(vp, FWRITE, ap->a_cred, ap->a_td, -1);
374 /* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
375 VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td);*/
377 np->n_mtime = *mtime;
378 VOP_CLOSE(vp, FWRITE, ap->a_cred, ap->a_td);
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);
386 error = smbfs_smb_setpattr(np, 0, mtime, &scred);
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);
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.
399 SMBERROR("can't update times on an opened file\n");
404 * Invalidate attribute cache in case if server doesn't set
405 * required attributes.
407 smbfs_attr_cacheremove(vp); /* invalidate cache */
408 VOP_GETATTR(vp, vap, ap->a_cred, ap->a_td);
409 np->n_mtime.tv_sec = vap->va_mtime.tv_sec;
417 struct vop_read_args /* {
421 struct ucred *a_cred;
424 struct vnode *vp = ap->a_vp;
425 struct uio *uio = ap->a_uio;
428 if (vp->v_type != VREG && vp->v_type != VDIR)
430 return smbfs_readvnode(vp, uio, ap->a_cred);
435 struct vop_write_args /* {
439 struct ucred *a_cred;
442 struct vnode *vp = ap->a_vp;
443 struct uio *uio = ap->a_uio;
445 SMBVDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
446 if (vp->v_type != VREG)
448 return smbfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
452 * Create a regular file. On entry the directory to contain the file being
453 * created is locked. We must release before we return. We must also free
454 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
455 * only if the SAVESTART bit in cn_flags is clear on success.
459 struct vop_create_args /* {
461 struct vnode **a_vpp;
462 struct componentname *a_cnp;
466 struct vnode *dvp = ap->a_dvp;
467 struct vattr *vap = ap->a_vap;
468 struct vnode **vpp=ap->a_vpp;
469 struct componentname *cnp = ap->a_cnp;
470 struct smbnode *dnp = VTOSMB(dvp);
473 struct smbfattr fattr;
474 struct smb_cred scred;
475 char *name = cnp->cn_nameptr;
476 int nmlen = cnp->cn_namelen;
482 if (vap->va_type != VREG)
484 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_thread)))
486 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
488 error = smbfs_smb_create(dnp, name, nmlen, &scred);
491 error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred);
494 error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp);
498 if (cnp->cn_flags & MAKEENTRY)
499 cache_enter(dvp, vp, cnp);
505 struct vop_remove_args /* {
506 struct vnodeop_desc *a_desc;
507 struct vnode * a_dvp;
509 struct componentname * a_cnp;
512 struct vnode *vp = ap->a_vp;
513 /* struct vnode *dvp = ap->a_dvp;*/
514 struct componentname *cnp = ap->a_cnp;
515 struct smbnode *np = VTOSMB(vp);
516 struct smb_cred scred;
519 if (vp->v_type == VDIR || (np->n_flag & NOPEN) != 0 || vrefcnt(vp) != 1)
521 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
522 error = smbfs_smb_delete(np, &scred);
530 * smbfs_file rename call
534 struct vop_rename_args /* {
535 struct vnode *a_fdvp;
537 struct componentname *a_fcnp;
538 struct vnode *a_tdvp;
540 struct componentname *a_tcnp;
543 struct vnode *fvp = ap->a_fvp;
544 struct vnode *tvp = ap->a_tvp;
545 struct vnode *fdvp = ap->a_fdvp;
546 struct vnode *tdvp = ap->a_tdvp;
547 struct componentname *tcnp = ap->a_tcnp;
548 /* struct componentname *fcnp = ap->a_fcnp;*/
549 struct smb_cred scred;
553 /* Check for cross-device rename */
554 if ((fvp->v_mount != tdvp->v_mount) ||
555 (tvp && (fvp->v_mount != tvp->v_mount))) {
560 if (tvp && vrefcnt(tvp) > 1) {
564 flags = 0x10; /* verify all writes */
565 if (fvp->v_type == VDIR) {
567 } else if (fvp->v_type == VREG) {
573 smb_makescred(&scred, tcnp->cn_thread, tcnp->cn_cred);
575 * It seems that Samba doesn't implement SMB_COM_MOVE call...
578 if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) {
579 error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp),
580 tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred);
585 * We have to do the work atomicaly
587 if (tvp && tvp != fvp) {
588 error = smbfs_smb_delete(VTOSMB(tvp), &scred);
591 VTOSMB(fvp)->n_flag |= NGONE;
593 error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp),
594 tcnp->cn_nameptr, tcnp->cn_namelen, &scred);
597 if (fvp->v_type == VDIR) {
598 if (tvp != NULL && tvp->v_type == VDIR)
604 smbfs_attr_cacheremove(fdvp);
605 smbfs_attr_cacheremove(tdvp);
615 #ifdef possible_mistake
624 * somtime it will come true...
628 struct vop_link_args /* {
629 struct vnode *a_tdvp;
631 struct componentname *a_cnp;
638 * smbfs_symlink link create call.
639 * Sometime it will be functional...
643 struct vop_symlink_args /* {
645 struct vnode **a_vpp;
646 struct componentname *a_cnp;
656 struct vop_mknod_args /* {
664 struct vop_mkdir_args /* {
666 struct vnode **a_vpp;
667 struct componentname *a_cnp;
671 struct vnode *dvp = ap->a_dvp;
672 /* struct vattr *vap = ap->a_vap;*/
674 struct componentname *cnp = ap->a_cnp;
675 struct smbnode *dnp = VTOSMB(dvp);
677 struct smb_cred scred;
678 struct smbfattr fattr;
679 char *name = cnp->cn_nameptr;
680 int len = cnp->cn_namelen;
683 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_thread))) {
686 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.'))))
688 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
689 error = smbfs_smb_mkdir(dnp, name, len, &scred);
692 error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred);
695 error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp);
703 * smbfs_remove directory call
707 struct vop_rmdir_args /* {
710 struct componentname *a_cnp;
713 struct vnode *vp = ap->a_vp;
714 struct vnode *dvp = ap->a_dvp;
715 struct componentname *cnp = ap->a_cnp;
716 /* struct smbmount *smp = VTOSMBFS(vp);*/
717 struct smbnode *dnp = VTOSMB(dvp);
718 struct smbnode *np = VTOSMB(vp);
719 struct smb_cred scred;
725 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
726 error = smbfs_smb_rmdir(np, &scred);
729 dnp->n_flag |= NMODIFIED;
730 smbfs_attr_cacheremove(dvp);
731 /* cache_purge(dvp);*/
741 struct vop_readdir_args /* {
744 struct ucred *a_cred;
750 struct vnode *vp = ap->a_vp;
751 struct uio *uio = ap->a_uio;
754 if (vp->v_type != VDIR)
757 if (ap->a_ncookies) {
758 printf("smbfs_readdir: no support for cookies now...");
762 error = smbfs_readvnode(vp, uio, ap->a_cred);
769 struct vop_fsync_args /* {
770 struct vnodeop_desc *a_desc;
772 struct ucred * a_cred;
774 struct thread * a_td;
777 /* return (smb_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
783 struct vop_print_args /* {
787 struct vnode *vp = ap->a_vp;
788 struct smbnode *np = VTOSMB(vp);
791 printf("no smbnode data\n");
794 printf("\tname = %s, parent = %p, open = %d\n", np->n_name,
795 np->n_parent ? np->n_parent : NULL, (np->n_flag & NOPEN) != 0);
801 struct vop_pathconf_args /* {
807 struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp));
808 struct smb_vc *vcp = SSTOVC(smp->sm_share);
809 register_t *retval = ap->a_retval;
812 switch (ap->a_name) {
817 *retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12;
820 *retval = 800; /* XXX: a correct one ? */
830 struct vop_strategy_args /* {
834 struct buf *bp=ap->a_bp;
840 if (bp->b_flags & B_ASYNC)
841 td = (struct thread *)0;
843 td = curthread; /* XXX */
844 if (bp->b_iocmd == BIO_READ)
849 if ((bp->b_flags & B_ASYNC) == 0 )
850 error = smbfs_doio(ap->a_vp, bp, cr, td);
856 struct vop_ioctl_args /* {
868 static char smbfs_atl[] = "rhsvda";
870 smbfs_getextattr(struct vop_getextattr_args *ap)
872 IN struct vnode *a_vp;
874 INOUT struct uio *a_uio;
875 IN struct ucred *a_cred;
876 IN struct thread *a_td;
880 struct vnode *vp = ap->a_vp;
881 struct thread *td = ap->a_td;
882 struct ucred *cred = ap->a_cred;
883 struct uio *uio = ap->a_uio;
884 const char *name = ap->a_name;
885 struct smbnode *np = VTOSMB(vp);
890 error = VOP_ACCESS(vp, VREAD, cred, td);
893 error = VOP_GETATTR(vp, &vattr, cred, td);
896 if (strcmp(name, "dosattr") == 0) {
897 attr = np->n_dosattr;
898 for (i = 0; i < 6; i++, attr >>= 1)
899 buf[i] = (attr & 1) ? smbfs_atl[i] : '-';
901 error = uiomove(buf, i, uio);
909 * Since we expected to support F_GETLK (and SMB protocol has no such function),
910 * it is necessary to use lf_advlock(). It would be nice if this function had
911 * a callback mechanism because it will help to improve a level of consistency.
915 struct vop_advlock_args /* {
923 struct vnode *vp = ap->a_vp;
924 struct smbnode *np = VTOSMB(vp);
925 struct flock *fl = ap->a_fl;
926 caddr_t id = (caddr_t)1 /* ap->a_id */;
927 /* int flags = ap->a_flags;*/
928 struct thread *td = curthread;
929 struct smb_cred scred;
931 off_t start, end, oadd;
934 if (vp->v_type == VDIR) {
936 * SMB protocol have no support for directory locking.
937 * Although locks can be processed on local machine, I don't
938 * think that this is a good idea, because some programs
939 * can work wrong assuming directory is locked. So, we just
940 * return 'operation not supported
945 switch (fl->l_whence) {
953 if (size > OFF_MAX ||
954 (fl->l_start > 0 && size > OFF_MAX - fl->l_start))
956 start = size + fl->l_start;
971 } else if (fl->l_len == 0)
974 oadd = fl->l_len - 1;
975 if (oadd > OFF_MAX - start)
979 smb_makescred(&scred, td, td->td_ucred);
982 switch (fl->l_type) {
984 lkop = SMB_LOCK_EXCL;
987 lkop = SMB_LOCK_SHARED;
990 lkop = SMB_LOCK_RELEASE;
995 error = lf_advlock(ap, &np->n_lockf, size);
998 lkop = SMB_LOCK_EXCL;
999 error = smbfs_smb_lock(np, lkop, id, start, end, &scred);
1001 int oldtype = fl->l_type;
1002 fl->l_type = F_UNLCK;
1004 lf_advlock(ap, &np->n_lockf, size);
1005 fl->l_type = oldtype;
1009 lf_advlock(ap, &np->n_lockf, size);
1010 error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, id, start, end, &scred);
1013 error = lf_advlock(ap, &np->n_lockf, size);
1022 smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen, int nameiop)
1024 static const char *badchars = "*/:<>;?";
1025 static const char *badchars83 = " +|,[]=";
1030 * Backslash characters, being a path delimiter, are prohibited
1031 * within a path component even for LOOKUP operations.
1033 if (index(name, '\\') != NULL)
1036 if (nameiop == LOOKUP)
1039 if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) {
1041 * Name should conform 8.3 format
1044 return ENAMETOOLONG;
1045 cp = index(name, '.');
1048 if (cp == name || (cp - name) > 8)
1050 cp = index(cp + 1, '.');
1053 for (cp = name, i = 0; i < nmlen; i++, cp++)
1054 if (index(badchars83, *cp) != NULL)
1057 for (cp = name, i = 0; i < nmlen; i++, cp++)
1058 if (index(badchars, *cp) != NULL)
1064 * Things go even weird without fixed inode numbers...
1068 struct vop_lookup_args /* {
1069 struct vnodeop_desc *a_desc;
1070 struct vnode *a_dvp;
1071 struct vnode **a_vpp;
1072 struct componentname *a_cnp;
1075 struct componentname *cnp = ap->a_cnp;
1076 struct thread *td = cnp->cn_thread;
1077 struct vnode *dvp = ap->a_dvp;
1078 struct vnode **vpp = ap->a_vpp;
1080 struct smbmount *smp;
1081 struct mount *mp = dvp->v_mount;
1082 struct smbnode *dnp;
1083 struct smbfattr fattr, *fap;
1084 struct smb_cred scred;
1085 char *name = cnp->cn_nameptr;
1086 int flags = cnp->cn_flags;
1087 int nameiop = cnp->cn_nameiop;
1088 int nmlen = cnp->cn_namelen;
1089 int error, islastcn, isdot;
1093 if (dvp->v_type != VDIR)
1095 if ((flags & ISDOTDOT) && (dvp->v_vflag & VV_ROOT)) {
1096 SMBFSERR("invalid '..'\n");
1099 #ifdef SMB_VNODE_DEBUG
1106 SMBVDEBUG("%d '%s' in '%s' id=d\n", nameiop, name,
1107 VTOSMB(dvp)->n_name);
1111 islastcn = flags & ISLASTCN;
1112 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP))
1114 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)) != 0)
1116 smp = VFSTOSMBFS(mp);
1118 isdot = (nmlen == 1 && name[0] == '.');
1120 error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop);
1125 error = cache_lookup(dvp, vpp, cnp);
1126 SMBVDEBUG("cache_lookup returned %d\n", error);
1129 if (error) { /* name was found */
1134 error = VOP_GETATTR(vp, &vattr, cnp->cn_cred, td);
1136 * If the file type on the server is inconsistent
1137 * with what it was when we created the vnode,
1138 * kill the bogus vnode now and fall through to
1139 * the code below to create a new one with the
1143 ((vp->v_type == VDIR &&
1144 (VTOSMB(vp)->n_dosattr & SMB_FA_DIR) == 0) ||
1145 (vp->v_type == VREG &&
1146 (VTOSMB(vp)->n_dosattr & SMB_FA_DIR) != 0)))
1149 /* && vattr.va_ctime.tv_sec == VTOSMB(vp)->n_ctime*/) {
1150 if (nameiop != LOOKUP && islastcn)
1151 cnp->cn_flags |= SAVENAME;
1152 SMBVDEBUG("use cached vnode\n");
1157 * XXX This is not quite right, if '.' is
1158 * inconsistent, we really need to start the lookup
1159 * all over again. Hopefully there is some other
1160 * guarantee that prevents this case from happening.
1162 if (killit && vp != dvp)
1171 * entry is not in the cache or has been expired
1175 smb_makescred(&scred, td, cnp->cn_cred);
1177 if (flags & ISDOTDOT) {
1178 error = smbfs_smb_lookup(VTOSMB(dnp->n_parent), NULL, 0, fap,
1180 SMBVDEBUG("result of dotdot lookup: %d\n", error);
1183 error = smbfs_smb_lookup(dnp, name, nmlen, fap, &scred);
1184 /* if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.')*/
1185 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error);
1187 if (error && error != ENOENT)
1189 if (error) { /* entry not found */
1191 * Handle RENAME or CREATE case...
1193 if ((nameiop == CREATE || nameiop == RENAME) && islastcn) {
1194 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
1197 cnp->cn_flags |= SAVENAME;
1198 return (EJUSTRETURN);
1202 SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
1205 * handle DELETE case ...
1207 if (nameiop == DELETE && islastcn) { /* delete last component */
1208 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
1216 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1220 cnp->cn_flags |= SAVENAME;
1223 if (nameiop == RENAME && islastcn) {
1224 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
1229 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1233 cnp->cn_flags |= SAVENAME;
1236 if (flags & ISDOTDOT) {
1237 VOP_UNLOCK(dvp, 0, td);
1238 error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp);
1239 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, td);
1247 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1251 SMBVDEBUG("lookup: getnewvp!\n");
1253 if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) {
1254 /* VTOSMB(*vpp)->n_ctime = VTOSMB(*vpp)->n_vattr.va_ctime.tv_sec;*/
1255 cache_enter(dvp, *vpp, cnp);