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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/param.h>
29 #include <sys/systm.h>
30 #include <sys/namei.h>
31 #include <sys/kernel.h>
35 #include <sys/fcntl.h>
36 #include <sys/mount.h>
37 #include <sys/unistd.h>
38 #include <sys/vnode.h>
39 #include <sys/limits.h>
40 #include <sys/lockf.h>
44 #include <vm/vm_extern.h>
47 #include <netsmb/smb.h>
48 #include <netsmb/smb_conn.h>
49 #include <netsmb/smb_subr.h>
51 #include <fs/smbfs/smbfs.h>
52 #include <fs/smbfs/smbfs_node.h>
53 #include <fs/smbfs/smbfs_subr.h>
56 * Prototypes for SMBFS vnode operations
58 static vop_create_t smbfs_create;
59 static vop_mknod_t smbfs_mknod;
60 static vop_open_t smbfs_open;
61 static vop_close_t smbfs_close;
62 static vop_access_t smbfs_access;
63 static vop_getattr_t smbfs_getattr;
64 static vop_setattr_t smbfs_setattr;
65 static vop_read_t smbfs_read;
66 static vop_write_t smbfs_write;
67 static vop_fsync_t smbfs_fsync;
68 static vop_remove_t smbfs_remove;
69 static vop_link_t smbfs_link;
70 static vop_lookup_t smbfs_lookup;
71 static vop_rename_t smbfs_rename;
72 static vop_mkdir_t smbfs_mkdir;
73 static vop_rmdir_t smbfs_rmdir;
74 static vop_symlink_t smbfs_symlink;
75 static vop_readdir_t smbfs_readdir;
76 static vop_strategy_t smbfs_strategy;
77 static vop_print_t smbfs_print;
78 static vop_pathconf_t smbfs_pathconf;
79 static vop_advlock_t smbfs_advlock;
80 static vop_getextattr_t smbfs_getextattr;
82 struct vop_vector smbfs_vnodeops = {
83 .vop_default = &default_vnodeops,
85 .vop_access = smbfs_access,
86 .vop_advlock = smbfs_advlock,
87 .vop_close = smbfs_close,
88 .vop_create = smbfs_create,
89 .vop_fsync = smbfs_fsync,
90 .vop_getattr = smbfs_getattr,
91 .vop_getextattr = smbfs_getextattr,
92 .vop_getpages = smbfs_getpages,
93 .vop_inactive = smbfs_inactive,
94 .vop_ioctl = smbfs_ioctl,
95 .vop_link = smbfs_link,
96 .vop_lookup = smbfs_lookup,
97 .vop_mkdir = smbfs_mkdir,
98 .vop_mknod = smbfs_mknod,
99 .vop_open = smbfs_open,
100 .vop_pathconf = smbfs_pathconf,
101 .vop_print = smbfs_print,
102 .vop_putpages = smbfs_putpages,
103 .vop_read = smbfs_read,
104 .vop_readdir = smbfs_readdir,
105 .vop_reclaim = smbfs_reclaim,
106 .vop_remove = smbfs_remove,
107 .vop_rename = smbfs_rename,
108 .vop_rmdir = smbfs_rmdir,
109 .vop_setattr = smbfs_setattr,
110 /* .vop_setextattr = smbfs_setextattr,*/
111 .vop_strategy = smbfs_strategy,
112 .vop_symlink = smbfs_symlink,
113 .vop_write = smbfs_write,
118 struct vop_access_args /* {
121 struct ucred *a_cred;
125 struct vnode *vp = ap->a_vp;
126 accmode_t accmode = ap->a_accmode;
128 struct smbmount *smp = VTOSMBFS(vp);
131 if ((accmode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
132 switch (vp->v_type) {
133 case VREG: case VDIR: case VLNK:
139 mpmode = vp->v_type == VREG ? smp->sm_file_mode : smp->sm_dir_mode;
140 return (vaccess(vp->v_type, mpmode, smp->sm_uid,
141 smp->sm_gid, ap->a_accmode, ap->a_cred, NULL));
147 struct vop_open_args /* {
150 struct ucred *a_cred;
154 struct vnode *vp = ap->a_vp;
155 struct smbnode *np = VTOSMB(vp);
156 struct smb_cred *scred;
158 int mode = ap->a_mode;
161 SMBVDEBUG("%s,%d\n", np->n_name, (np->n_flag & NOPEN) != 0);
162 if (vp->v_type != VREG && vp->v_type != VDIR) {
163 SMBFSERR("open eacces vtype=%d\n", vp->v_type);
166 if (vp->v_type == VDIR) {
170 if (np->n_flag & NMODIFIED) {
171 if ((error = smbfs_vinvalbuf(vp, ap->a_td)) == EINTR)
173 smbfs_attr_cacheremove(vp);
174 error = VOP_GETATTR(vp, &vattr, ap->a_cred);
177 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
179 error = VOP_GETATTR(vp, &vattr, ap->a_cred);
182 if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
183 error = smbfs_vinvalbuf(vp, ap->a_td);
186 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
189 if ((np->n_flag & NOPEN) != 0)
192 * Use DENYNONE to give unixy semantics of permitting
193 * everything not forbidden by permissions. Ie denial
194 * is up to server with clients/openers needing to use
195 * advisory locks for further control.
197 accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
198 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
199 accmode = SMB_SM_DENYNONE|SMB_AM_OPENRW;
200 scred = smbfs_malloc_scred();
201 smb_makescred(scred, ap->a_td, ap->a_cred);
202 error = smbfs_smb_open(np, accmode, scred);
206 else if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
207 accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
208 error = smbfs_smb_open(np, accmode, scred);
213 vnode_create_vobject(ap->a_vp, vattr.va_size, ap->a_td);
215 smbfs_attr_cacheremove(vp);
216 smbfs_free_scred(scred);
222 struct vop_close_args /* {
223 struct vnodeop_desc *a_desc;
226 struct ucred *a_cred;
230 struct vnode *vp = ap->a_vp;
231 struct thread *td = ap->a_td;
232 struct smbnode *np = VTOSMB(vp);
233 struct smb_cred *scred;
235 if (vp->v_type == VDIR && (np->n_flag & NOPEN) != 0 &&
236 np->n_dirseq != NULL) {
237 scred = smbfs_malloc_scred();
238 smb_makescred(scred, td, ap->a_cred);
239 smbfs_findclose(np->n_dirseq, scred);
240 smbfs_free_scred(scred);
247 * smbfs_getattr call from vfs.
251 struct vop_getattr_args /* {
254 struct ucred *a_cred;
257 struct vnode *vp = ap->a_vp;
258 struct smbnode *np = VTOSMB(vp);
259 struct vattr *va=ap->a_vap;
260 struct smbfattr fattr;
261 struct smb_cred *scred;
265 SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_vflag & VV_ROOT) != 0);
266 error = smbfs_attr_cachelookup(vp, va);
269 SMBVDEBUG("not in the cache\n");
270 scred = smbfs_malloc_scred();
271 smb_makescred(scred, curthread, ap->a_cred);
272 oldsize = np->n_size;
273 error = smbfs_smb_lookup(np, NULL, 0, &fattr, scred);
275 SMBVDEBUG("error %d\n", error);
276 smbfs_free_scred(scred);
279 smbfs_attr_cacheenter(vp, &fattr);
280 smbfs_attr_cachelookup(vp, va);
281 if (np->n_flag & NOPEN)
282 np->n_size = oldsize;
283 smbfs_free_scred(scred);
289 struct vop_setattr_args /* {
292 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);
302 struct thread *td = curthread;
304 int isreadonly, doclose, error = 0;
308 if (vap->va_flags != VNOVAL)
310 isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY);
312 * Disallow write attempts if the filesystem is mounted read-only.
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)
318 scred = smbfs_malloc_scred();
319 smb_makescred(scred, td, ap->a_cred);
320 if (vap->va_size != VNOVAL) {
321 switch (vp->v_type) {
336 vnode_pager_setsize(vp, (u_long)vap->va_size);
338 np->n_size = vap->va_size;
339 if ((np->n_flag & NOPEN) == 0) {
340 error = smbfs_smb_open(np,
341 SMB_SM_DENYNONE|SMB_AM_OPENRW,
347 error = smbfs_smb_setfsize(np, vap->va_size, scred);
349 smbfs_smb_close(ssp, np->n_fid, NULL, scred);
352 vnode_pager_setsize(vp, (u_long)tsize);
356 if (vap->va_mode != (mode_t)VNOVAL) {
357 old_n_dosattr = np->n_dosattr;
358 if (vap->va_mode & S_IWUSR)
359 np->n_dosattr &= ~SMB_FA_RDONLY;
361 np->n_dosattr |= SMB_FA_RDONLY;
362 if (np->n_dosattr != old_n_dosattr) {
363 error = smbfs_smb_setpattr(np, np->n_dosattr, NULL, scred);
368 mtime = atime = NULL;
369 if (vap->va_mtime.tv_sec != VNOVAL)
370 mtime = &vap->va_mtime;
371 if (vap->va_atime.tv_sec != VNOVAL)
372 atime = &vap->va_atime;
373 if (mtime != atime) {
374 if (vap->va_vaflags & VA_UTIMES_NULL) {
375 error = VOP_ACCESS(vp, VADMIN, ap->a_cred, td);
377 error = VOP_ACCESS(vp, VWRITE, ap->a_cred, td);
379 error = VOP_ACCESS(vp, VADMIN, ap->a_cred, td);
382 mtime = &np->n_mtime;
384 atime = &np->n_atime;
387 * If file is opened, then we can use handle based calls.
388 * If not, use path based ones.
390 if ((np->n_flag & NOPEN) == 0) {
391 if (vcp->vc_flags & SMBV_WIN95) {
392 error = VOP_OPEN(vp, FWRITE, ap->a_cred, td,
395 /* error = smbfs_smb_setfattrNT(np, 0,
396 mtime, atime, scred);
397 VOP_GETATTR(vp, &vattr, ap->a_cred); */
399 np->n_mtime = *mtime;
400 VOP_CLOSE(vp, FWRITE, ap->a_cred, td);
402 } else if ((vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS)) {
403 error = smbfs_smb_setptime2(np, mtime, atime, 0, scred);
404 /* error = smbfs_smb_setpattrNT(np, 0, mtime, atime, scred);*/
405 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) {
406 error = smbfs_smb_setptime2(np, mtime, atime, 0, scred);
408 error = smbfs_smb_setpattr(np, 0, mtime, scred);
411 if (vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS) {
412 error = smbfs_smb_setfattrNT(np, 0, mtime, atime, scred);
413 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) {
414 error = smbfs_smb_setftime(np, mtime, atime, scred);
417 * I have no idea how to handle this for core
418 * level servers. The possible solution is to
419 * update mtime after file is closed.
421 SMBERROR("can't update times on an opened file\n");
426 * Invalidate attribute cache in case if server doesn't set
427 * required attributes.
429 smbfs_attr_cacheremove(vp); /* invalidate cache */
430 VOP_GETATTR(vp, vap, ap->a_cred);
431 np->n_mtime.tv_sec = vap->va_mtime.tv_sec;
433 smbfs_free_scred(scred);
441 struct vop_read_args /* {
445 struct ucred *a_cred;
448 struct vnode *vp = ap->a_vp;
449 struct uio *uio = ap->a_uio;
452 if (vp->v_type != VREG && vp->v_type != VDIR)
454 return smbfs_readvnode(vp, uio, ap->a_cred);
459 struct vop_write_args /* {
463 struct ucred *a_cred;
466 struct vnode *vp = ap->a_vp;
467 struct uio *uio = ap->a_uio;
469 SMBVDEBUG("%d,ofs=%jd,sz=%zd\n",vp->v_type, (intmax_t)uio->uio_offset,
471 if (vp->v_type != VREG)
473 return smbfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
477 * Create a regular file. On entry the directory to contain the file being
478 * created is locked. We must release before we return. We must also free
479 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
480 * only if the SAVESTART bit in cn_flags is clear on success.
484 struct vop_create_args /* {
486 struct vnode **a_vpp;
487 struct componentname *a_cnp;
491 struct vnode *dvp = ap->a_dvp;
492 struct vattr *vap = ap->a_vap;
493 struct vnode **vpp=ap->a_vpp;
494 struct componentname *cnp = ap->a_cnp;
495 struct smbnode *dnp = VTOSMB(dvp);
498 struct smbfattr fattr;
499 struct smb_cred *scred;
500 char *name = cnp->cn_nameptr;
501 int nmlen = cnp->cn_namelen;
507 if (vap->va_type != VREG)
509 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred)))
511 scred = smbfs_malloc_scred();
512 smb_makescred(scred, cnp->cn_thread, cnp->cn_cred);
514 error = smbfs_smb_create(dnp, name, nmlen, scred);
517 error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, scred);
520 error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp);
524 if (cnp->cn_flags & MAKEENTRY)
525 cache_enter(dvp, vp, cnp);
527 smbfs_free_scred(scred);
533 struct vop_remove_args /* {
534 struct vnodeop_desc *a_desc;
535 struct vnode * a_dvp;
537 struct componentname * a_cnp;
540 struct vnode *vp = ap->a_vp;
541 /* struct vnode *dvp = ap->a_dvp;*/
542 struct componentname *cnp = ap->a_cnp;
543 struct smbnode *np = VTOSMB(vp);
544 struct smb_cred *scred;
547 if (vp->v_type == VDIR || (np->n_flag & NOPEN) != 0 || vrefcnt(vp) != 1)
549 scred = smbfs_malloc_scred();
550 smb_makescred(scred, cnp->cn_thread, cnp->cn_cred);
551 error = smbfs_smb_delete(np, scred);
555 smbfs_free_scred(scred);
560 * smbfs_file rename call
564 struct vop_rename_args /* {
565 struct vnode *a_fdvp;
567 struct componentname *a_fcnp;
568 struct vnode *a_tdvp;
570 struct componentname *a_tcnp;
573 struct vnode *fvp = ap->a_fvp;
574 struct vnode *tvp = ap->a_tvp;
575 struct vnode *fdvp = ap->a_fdvp;
576 struct vnode *tdvp = ap->a_tdvp;
577 struct componentname *tcnp = ap->a_tcnp;
578 /* struct componentname *fcnp = ap->a_fcnp;*/
579 struct smb_cred *scred;
584 /* Check for cross-device rename */
585 if ((fvp->v_mount != tdvp->v_mount) ||
586 (tvp && (fvp->v_mount != tvp->v_mount))) {
591 if (tvp && vrefcnt(tvp) > 1) {
595 flags = 0x10; /* verify all writes */
596 if (fvp->v_type == VDIR) {
598 } else if (fvp->v_type == VREG) {
603 scred = smbfs_malloc_scred();
604 smb_makescred(scred, tcnp->cn_thread, tcnp->cn_cred);
606 * It seems that Samba doesn't implement SMB_COM_MOVE call...
609 if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) {
610 error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp),
611 tcnp->cn_nameptr, tcnp->cn_namelen, flags, scred);
616 * We have to do the work atomicaly
618 if (tvp && tvp != fvp) {
619 error = smbfs_smb_delete(VTOSMB(tvp), scred);
622 VTOSMB(fvp)->n_flag |= NGONE;
624 error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp),
625 tcnp->cn_nameptr, tcnp->cn_namelen, scred);
628 if (fvp->v_type == VDIR) {
629 if (tvp != NULL && tvp->v_type == VDIR)
635 smbfs_attr_cacheremove(fdvp);
636 smbfs_attr_cacheremove(tdvp);
638 smbfs_free_scred(scred);
647 #ifdef possible_mistake
656 * somtime it will come true...
660 struct vop_link_args /* {
661 struct vnode *a_tdvp;
663 struct componentname *a_cnp;
670 * smbfs_symlink link create call.
671 * Sometime it will be functional...
675 struct vop_symlink_args /* {
677 struct vnode **a_vpp;
678 struct componentname *a_cnp;
688 struct vop_mknod_args /* {
696 struct vop_mkdir_args /* {
698 struct vnode **a_vpp;
699 struct componentname *a_cnp;
703 struct vnode *dvp = ap->a_dvp;
704 /* struct vattr *vap = ap->a_vap;*/
706 struct componentname *cnp = ap->a_cnp;
707 struct smbnode *dnp = VTOSMB(dvp);
709 struct smb_cred *scred;
710 struct smbfattr fattr;
711 char *name = cnp->cn_nameptr;
712 int len = cnp->cn_namelen;
715 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred))) {
718 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.'))))
720 scred = smbfs_malloc_scred();
721 smb_makescred(scred, cnp->cn_thread, cnp->cn_cred);
722 error = smbfs_smb_mkdir(dnp, name, len, scred);
725 error = smbfs_smb_lookup(dnp, name, len, &fattr, scred);
728 error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp);
733 smbfs_free_scred(scred);
738 * smbfs_remove directory call
742 struct vop_rmdir_args /* {
745 struct componentname *a_cnp;
748 struct vnode *vp = ap->a_vp;
749 struct vnode *dvp = ap->a_dvp;
750 struct componentname *cnp = ap->a_cnp;
751 /* struct smbmount *smp = VTOSMBFS(vp);*/
752 struct smbnode *dnp = VTOSMB(dvp);
753 struct smbnode *np = VTOSMB(vp);
754 struct smb_cred *scred;
760 scred = smbfs_malloc_scred();
761 smb_makescred(scred, cnp->cn_thread, cnp->cn_cred);
762 error = smbfs_smb_rmdir(np, scred);
765 dnp->n_flag |= NMODIFIED;
766 smbfs_attr_cacheremove(dvp);
767 /* cache_purge(dvp);*/
769 smbfs_free_scred(scred);
778 struct vop_readdir_args /* {
781 struct ucred *a_cred;
787 struct vnode *vp = ap->a_vp;
788 struct uio *uio = ap->a_uio;
791 if (vp->v_type != VDIR)
794 if (ap->a_ncookies) {
795 printf("smbfs_readdir: no support for cookies now...");
799 error = smbfs_readvnode(vp, uio, ap->a_cred);
806 struct vop_fsync_args /* {
807 struct vnodeop_desc *a_desc;
809 struct ucred * a_cred;
811 struct thread * a_td;
814 /* return (smb_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
820 struct vop_print_args /* {
824 struct vnode *vp = ap->a_vp;
825 struct smbnode *np = VTOSMB(vp);
828 printf("no smbnode data\n");
831 printf("\tname = %s, parent = %p, open = %d\n", np->n_name,
832 np->n_parent ? np->n_parent : NULL, (np->n_flag & NOPEN) != 0);
838 struct vop_pathconf_args /* {
844 struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp));
845 struct smb_vc *vcp = SSTOVC(smp->sm_share);
846 register_t *retval = ap->a_retval;
849 switch (ap->a_name) {
854 *retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12;
857 *retval = 800; /* XXX: a correct one ? */
867 struct vop_strategy_args /* {
871 struct buf *bp=ap->a_bp;
876 if (bp->b_flags & B_ASYNC)
877 td = (struct thread *)0;
879 td = curthread; /* XXX */
880 if (bp->b_iocmd == BIO_READ)
885 if ((bp->b_flags & B_ASYNC) == 0 )
886 (void)smbfs_doio(ap->a_vp, bp, cr, td);
892 struct vop_ioctl_args /* {
904 static char smbfs_atl[] = "rhsvda";
906 smbfs_getextattr(struct vop_getextattr_args *ap)
908 IN struct vnode *a_vp;
910 INOUT struct uio *a_uio;
911 IN struct ucred *a_cred;
912 IN struct thread *a_td;
916 struct vnode *vp = ap->a_vp;
917 struct thread *td = ap->a_td;
918 struct ucred *cred = ap->a_cred;
919 struct uio *uio = ap->a_uio;
920 const char *name = ap->a_name;
921 struct smbnode *np = VTOSMB(vp);
926 error = VOP_ACCESS(vp, VREAD, cred, td);
929 error = VOP_GETATTR(vp, &vattr, cred);
932 if (strcmp(name, "dosattr") == 0) {
933 attr = np->n_dosattr;
934 for (i = 0; i < 6; i++, attr >>= 1)
935 buf[i] = (attr & 1) ? smbfs_atl[i] : '-';
937 error = uiomove(buf, i, uio);
945 * Since we expected to support F_GETLK (and SMB protocol has no such function),
946 * it is necessary to use lf_advlock(). It would be nice if this function had
947 * a callback mechanism because it will help to improve a level of consistency.
951 struct vop_advlock_args /* {
959 struct vnode *vp = ap->a_vp;
960 struct smbnode *np = VTOSMB(vp);
961 struct flock *fl = ap->a_fl;
962 caddr_t id = (caddr_t)1 /* ap->a_id */;
963 /* int flags = ap->a_flags;*/
964 struct thread *td = curthread;
965 struct smb_cred *scred;
967 off_t start, end, oadd;
970 if (vp->v_type == VDIR) {
972 * SMB protocol have no support for directory locking.
973 * Although locks can be processed on local machine, I don't
974 * think that this is a good idea, because some programs
975 * can work wrong assuming directory is locked. So, we just
976 * return 'operation not supported
981 switch (fl->l_whence) {
989 if (size > OFF_MAX ||
990 (fl->l_start > 0 && size > OFF_MAX - fl->l_start))
992 start = size + fl->l_start;
1000 if (fl->l_len < 0) {
1007 } else if (fl->l_len == 0)
1010 oadd = fl->l_len - 1;
1011 if (oadd > OFF_MAX - start)
1015 scred = smbfs_malloc_scred();
1016 smb_makescred(scred, td, td->td_ucred);
1019 switch (fl->l_type) {
1021 lkop = SMB_LOCK_EXCL;
1024 lkop = SMB_LOCK_SHARED;
1027 lkop = SMB_LOCK_RELEASE;
1030 smbfs_free_scred(scred);
1033 error = lf_advlock(ap, &vp->v_lockf, size);
1036 lkop = SMB_LOCK_EXCL;
1037 error = smbfs_smb_lock(np, lkop, id, start, end, scred);
1039 int oldtype = fl->l_type;
1040 fl->l_type = F_UNLCK;
1042 lf_advlock(ap, &vp->v_lockf, size);
1043 fl->l_type = oldtype;
1047 lf_advlock(ap, &vp->v_lockf, size);
1048 error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, id, start, end, scred);
1051 error = lf_advlock(ap, &vp->v_lockf, size);
1054 smbfs_free_scred(scred);
1057 smbfs_free_scred(scred);
1062 smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen, int nameiop)
1064 static const char *badchars = "*/:<>;?";
1065 static const char *badchars83 = " +|,[]=";
1070 * Backslash characters, being a path delimiter, are prohibited
1071 * within a path component even for LOOKUP operations.
1073 if (strchr(name, '\\') != NULL)
1076 if (nameiop == LOOKUP)
1079 if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) {
1081 * Name should conform 8.3 format
1084 return ENAMETOOLONG;
1085 cp = strchr(name, '.');
1088 if (cp == name || (cp - name) > 8)
1090 cp = strchr(cp + 1, '.');
1093 for (cp = name, i = 0; i < nmlen; i++, cp++)
1094 if (strchr(badchars83, *cp) != NULL)
1097 for (cp = name, i = 0; i < nmlen; i++, cp++)
1098 if (strchr(badchars, *cp) != NULL)
1104 * Things go even weird without fixed inode numbers...
1108 struct vop_lookup_args /* {
1109 struct vnodeop_desc *a_desc;
1110 struct vnode *a_dvp;
1111 struct vnode **a_vpp;
1112 struct componentname *a_cnp;
1115 struct componentname *cnp = ap->a_cnp;
1116 struct thread *td = cnp->cn_thread;
1117 struct vnode *dvp = ap->a_dvp;
1118 struct vnode **vpp = ap->a_vpp;
1120 struct smbmount *smp;
1121 struct mount *mp = dvp->v_mount;
1122 struct smbnode *dnp;
1123 struct smbfattr fattr, *fap;
1124 struct smb_cred *scred;
1125 char *name = cnp->cn_nameptr;
1126 int flags = cnp->cn_flags;
1127 int nameiop = cnp->cn_nameiop;
1128 int nmlen = cnp->cn_namelen;
1129 int error, islastcn, isdot;
1133 if (dvp->v_type != VDIR)
1135 if ((flags & ISDOTDOT) && (dvp->v_vflag & VV_ROOT)) {
1136 SMBFSERR("invalid '..'\n");
1139 islastcn = flags & ISLASTCN;
1140 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP))
1142 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)) != 0)
1144 smp = VFSTOSMBFS(mp);
1146 isdot = (nmlen == 1 && name[0] == '.');
1148 error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop);
1153 error = cache_lookup(dvp, vpp, cnp, NULL, NULL);
1154 SMBVDEBUG("cache_lookup returned %d\n", error);
1157 if (error) { /* name was found */
1162 error = VOP_GETATTR(vp, &vattr, cnp->cn_cred);
1164 * If the file type on the server is inconsistent
1165 * with what it was when we created the vnode,
1166 * kill the bogus vnode now and fall through to
1167 * the code below to create a new one with the
1171 ((vp->v_type == VDIR &&
1172 (VTOSMB(vp)->n_dosattr & SMB_FA_DIR) == 0) ||
1173 (vp->v_type == VREG &&
1174 (VTOSMB(vp)->n_dosattr & SMB_FA_DIR) != 0)))
1177 /* && vattr.va_ctime.tv_sec == VTOSMB(vp)->n_ctime*/) {
1178 if (nameiop != LOOKUP && islastcn)
1179 cnp->cn_flags |= SAVENAME;
1180 SMBVDEBUG("use cached vnode\n");
1185 * XXX This is not quite right, if '.' is
1186 * inconsistent, we really need to start the lookup
1187 * all over again. Hopefully there is some other
1188 * guarantee that prevents this case from happening.
1190 if (killit && vp != dvp)
1199 * entry is not in the cache or has been expired
1203 scred = smbfs_malloc_scred();
1204 smb_makescred(scred, td, cnp->cn_cred);
1206 if (flags & ISDOTDOT) {
1208 * In the DOTDOT case, don't go over-the-wire
1209 * in order to request attributes. We already
1210 * know it's a directory and subsequent call to
1211 * smbfs_getattr() will restore consistency.
1214 SMBVDEBUG("smbfs_smb_lookup: dotdot\n");
1216 error = smbfs_smb_lookup(dnp, NULL, 0, fap, scred);
1217 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error);
1220 error = smbfs_smb_lookup(dnp, name, nmlen, fap, scred);
1221 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error);
1223 if (error && error != ENOENT)
1225 if (error) { /* entry not found */
1227 * Handle RENAME or CREATE case...
1229 if ((nameiop == CREATE || nameiop == RENAME) && islastcn) {
1230 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
1233 cnp->cn_flags |= SAVENAME;
1234 error = EJUSTRETURN;
1240 SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
1243 * handle DELETE case ...
1245 if (nameiop == DELETE && islastcn) { /* delete last component */
1246 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
1254 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1258 cnp->cn_flags |= SAVENAME;
1261 if (nameiop == RENAME && islastcn) {
1262 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
1269 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1273 cnp->cn_flags |= SAVENAME;
1276 if (flags & ISDOTDOT) {
1278 error = vfs_busy(mp, MBF_NOWAIT);
1282 error = vfs_busy(mp, 0);
1283 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
1287 if ((dvp->v_iflag & VI_DOOMED) != 0) {
1293 error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp);
1295 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
1296 if ((dvp->v_iflag & VI_DOOMED) != 0) {
1308 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
1312 SMBVDEBUG("lookup: getnewvp!\n");
1314 if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) {
1315 /* VTOSMB(*vpp)->n_ctime = VTOSMB(*vpp)->n_vattr.va_ctime.tv_sec;*/
1316 cache_enter(dvp, *vpp, cnp);
1319 smbfs_free_scred(scred);