Initial import from FreeBSD RELENG_4:
[dragonfly.git] / sys / vfs / nwfs / nwfs_vnops.c
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1999, 2000 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/nwfs/nwfs_vnops.c,v 1.6.2.3 2001/03/14 11:26:59 bp Exp $
33 */
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/namei.h>
37#include <sys/kernel.h>
38#include <sys/buf.h>
39#include <sys/proc.h>
40#include <sys/fcntl.h>
41#include <sys/mount.h>
42#include <sys/unistd.h>
43#include <sys/vnode.h>
44
45#include <vm/vm.h>
46#include <vm/vm_extern.h>
47#include <vm/vm_zone.h>
48
49#include <netncp/ncp.h>
50#include <netncp/ncp_conn.h>
51#include <netncp/ncp_subr.h>
52#include <netncp/nwerror.h>
53#include <netncp/ncp_nls.h>
54
55#include <nwfs/nwfs.h>
56#include <nwfs/nwfs_node.h>
57#include <nwfs/nwfs_subr.h>
58
59/*
60 * Prototypes for NWFS vnode operations
61 */
62static int nwfs_create(struct vop_create_args *);
63static int nwfs_mknod(struct vop_mknod_args *);
64static int nwfs_open(struct vop_open_args *);
65static int nwfs_close(struct vop_close_args *);
66static int nwfs_access(struct vop_access_args *);
67static int nwfs_getattr(struct vop_getattr_args *);
68static int nwfs_setattr(struct vop_setattr_args *);
69static int nwfs_read(struct vop_read_args *);
70static int nwfs_write(struct vop_write_args *);
71static int nwfs_fsync(struct vop_fsync_args *);
72static int nwfs_remove(struct vop_remove_args *);
73static int nwfs_link(struct vop_link_args *);
74static int nwfs_lookup(struct vop_lookup_args *);
75static int nwfs_rename(struct vop_rename_args *);
76static int nwfs_mkdir(struct vop_mkdir_args *);
77static int nwfs_rmdir(struct vop_rmdir_args *);
78static int nwfs_symlink(struct vop_symlink_args *);
79static int nwfs_readdir(struct vop_readdir_args *);
80static int nwfs_bmap(struct vop_bmap_args *);
81static int nwfs_strategy(struct vop_strategy_args *);
82static int nwfs_print(struct vop_print_args *);
83static int nwfs_pathconf(struct vop_pathconf_args *ap);
84
85/* Global vfs data structures for nwfs */
86vop_t **nwfs_vnodeop_p;
87static struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
88 { &vop_default_desc, (vop_t *) vop_defaultop },
89 { &vop_access_desc, (vop_t *) nwfs_access },
90 { &vop_bmap_desc, (vop_t *) nwfs_bmap },
91 { &vop_open_desc, (vop_t *) nwfs_open },
92 { &vop_close_desc, (vop_t *) nwfs_close },
93 { &vop_create_desc, (vop_t *) nwfs_create },
94 { &vop_fsync_desc, (vop_t *) nwfs_fsync },
95 { &vop_getattr_desc, (vop_t *) nwfs_getattr },
96 { &vop_getpages_desc, (vop_t *) nwfs_getpages },
97 { &vop_putpages_desc, (vop_t *) nwfs_putpages },
98 { &vop_ioctl_desc, (vop_t *) nwfs_ioctl },
99 { &vop_inactive_desc, (vop_t *) nwfs_inactive },
100 { &vop_islocked_desc, (vop_t *) vop_stdislocked },
101 { &vop_link_desc, (vop_t *) nwfs_link },
102 { &vop_lock_desc, (vop_t *) vop_stdlock },
103 { &vop_lookup_desc, (vop_t *) nwfs_lookup },
104 { &vop_mkdir_desc, (vop_t *) nwfs_mkdir },
105 { &vop_mknod_desc, (vop_t *) nwfs_mknod },
106 { &vop_pathconf_desc, (vop_t *) nwfs_pathconf },
107 { &vop_print_desc, (vop_t *) nwfs_print },
108 { &vop_read_desc, (vop_t *) nwfs_read },
109 { &vop_readdir_desc, (vop_t *) nwfs_readdir },
110 { &vop_reclaim_desc, (vop_t *) nwfs_reclaim },
111 { &vop_remove_desc, (vop_t *) nwfs_remove },
112 { &vop_rename_desc, (vop_t *) nwfs_rename },
113 { &vop_rmdir_desc, (vop_t *) nwfs_rmdir },
114 { &vop_setattr_desc, (vop_t *) nwfs_setattr },
115 { &vop_strategy_desc, (vop_t *) nwfs_strategy },
116 { &vop_symlink_desc, (vop_t *) nwfs_symlink },
117 { &vop_unlock_desc, (vop_t *) vop_stdunlock },
118 { &vop_write_desc, (vop_t *) nwfs_write },
119 { NULL, NULL }
120};
121static struct vnodeopv_desc nwfs_vnodeop_opv_desc =
122 { &nwfs_vnodeop_p, nwfs_vnodeop_entries };
123
124VNODEOP_SET(nwfs_vnodeop_opv_desc);
125
126/*
127 * nwfs_access vnode op
128 * for now just return ok
129 */
130static int
131nwfs_access(ap)
132 struct vop_access_args /* {
133 struct vnode *a_vp;
134 int a_mode;
135 struct ucred *a_cred;
136 struct proc *a_p;
137 } */ *ap;
138{
139 struct vnode *vp = ap->a_vp;
140 struct ucred *cred = ap->a_cred;
141 u_int mode = ap->a_mode;
142 struct nwmount *nmp = VTONWFS(vp);
143 int error = 0;
144
145 NCPVNDEBUG("\n");
146 if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
147 switch (vp->v_type) {
148 case VREG: case VDIR: case VLNK:
149 return (EROFS);
150 default:
151 break;
152 }
153 }
154 if (cred->cr_uid == 0)
155 return 0;
156 if (cred->cr_uid != nmp->m.uid) {
157 mode >>= 3;
158 if (!groupmember(nmp->m.gid, cred))
159 mode >>= 3;
160 }
161 error = (((vp->v_type == VREG) ? nmp->m.file_mode : nmp->m.dir_mode) & mode) == mode ? 0 : EACCES;
162 return error;
163}
164/*
165 * nwfs_open vnode op
166 */
167/* ARGSUSED */
168static int
169nwfs_open(ap)
170 struct vop_open_args /* {
171 struct vnode *a_vp;
172 int a_mode;
173 struct ucred *a_cred;
174 struct proc *a_p;
175 } */ *ap;
176{
177 struct vnode *vp = ap->a_vp;
178 int mode = ap->a_mode;
179 struct nwnode *np = VTONW(vp);
180 struct ncp_open_info no;
181 struct nwmount *nmp = VTONWFS(vp);
182 struct vattr vattr;
183 int error, nwm;
184
185 NCPVNDEBUG("%s,%d\n",np->n_name, np->opened);
186 if (vp->v_type != VREG && vp->v_type != VDIR) {
187 NCPFATAL("open vtype = %d\n", vp->v_type);
188 return (EACCES);
189 }
190 if (vp->v_type == VDIR) return 0; /* nothing to do now */
191 if (np->n_flag & NMODIFIED) {
192 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1)) == EINTR)
193 return (error);
194 np->n_atime = 0;
195 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
196 if (error) return (error);
197 np->n_mtime = vattr.va_mtime.tv_sec;
198 } else {
199 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
200 if (error) return (error);
201 if (np->n_mtime != vattr.va_mtime.tv_sec) {
202 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1)) == EINTR)
203 return (error);
204 np->n_mtime = vattr.va_mtime.tv_sec;
205 }
206 }
207 if (np->opened) {
208 np->opened++;
209 return 0;
210 }
211 nwm = AR_READ;
212 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
213 nwm |= AR_WRITE;
214 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
215 0, nwm, &no, ap->a_p, ap->a_cred);
216 if (error) {
217 if (mode & FWRITE)
218 return EACCES;
219 nwm = AR_READ;
220 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
221 nwm, &no, ap->a_p,ap->a_cred);
222 }
223 if (!error) {
224 np->opened++;
225 np->n_fh = no.fh;
226 np->n_origfh = no.origfh;
227 }
228 np->n_atime = 0;
229 return (error);
230}
231
232static int
233nwfs_close(ap)
234 struct vop_close_args /* {
235 struct vnodeop_desc *a_desc;
236 struct vnode *a_vp;
237 int a_fflag;
238 struct ucred *a_cred;
239 struct proc *a_p;
240 } */ *ap;
241{
242 struct vnode *vp = ap->a_vp;
243 struct nwnode *np = VTONW(vp);
244 int error;
245
246 NCPVNDEBUG("name=%s,pid=%d,c=%d\n",np->n_name,ap->a_p->p_pid,np->opened);
247
248 if (vp->v_type == VDIR) return 0; /* nothing to do now */
249 error = 0;
250 simple_lock(&vp->v_interlock);
251 if (np->opened == 0) {
252 simple_unlock(&vp->v_interlock);
253 return 0;
254 }
255 simple_unlock(&vp->v_interlock);
256 error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1);
257 simple_lock(&vp->v_interlock);
258 if (np->opened == 0) {
259 simple_unlock(&vp->v_interlock);
260 return 0;
261 }
262 if (--np->opened == 0) {
263 simple_unlock(&vp->v_interlock);
264 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
265 ap->a_p, ap->a_cred);
266 } else
267 simple_unlock(&vp->v_interlock);
268 np->n_atime = 0;
269 return (error);
270}
271
272/*
273 * nwfs_getattr call from vfs.
274 */
275static int
276nwfs_getattr(ap)
277 struct vop_getattr_args /* {
278 struct vnode *a_vp;
279 struct vattr *a_vap;
280 struct ucred *a_cred;
281 struct proc *a_p;
282 } */ *ap;
283{
284 struct vnode *vp = ap->a_vp;
285 struct nwnode *np = VTONW(vp);
286 struct vattr *va=ap->a_vap;
287 struct nwmount *nmp = VTONWFS(vp);
288 struct nw_entry_info fattr;
289 int error;
290 u_int32_t oldsize;
291
292 NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
293 error = nwfs_attr_cachelookup(vp,va);
294 if (!error) return 0;
295 NCPVNDEBUG("not in cache\n");
296 oldsize = np->n_size;
297 if (np->n_flag & NVOLUME) {
298 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
299 ap->a_p,ap->a_cred);
300 } else {
301 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
302 np->n_name, &fattr, ap->a_p, ap->a_cred);
303 }
304 if (error) {
305 NCPVNDEBUG("error %d\n", error);
306 return error;
307 }
308 nwfs_attr_cacheenter(vp, &fattr);
309 *va = np->n_vattr;
310 if (np->opened)
311 np->n_size = oldsize;
312 return (0);
313}
314/*
315 * nwfs_setattr call from vfs.
316 */
317static int
318nwfs_setattr(ap)
319 struct vop_setattr_args /* {
320 struct vnode *a_vp;
321 struct vattr *a_vap;
322 struct ucred *a_cred;
323 struct proc *a_p;
324 } */ *ap;
325{
326 struct vnode *vp = ap->a_vp;
327 struct nwnode *np = VTONW(vp);
328 struct vattr *vap = ap->a_vap;
329 u_quad_t tsize=0;
330 int error = 0;
331
332 NCPVNDEBUG("\n");
333 if (vap->va_flags != VNOVAL)
334 return (EOPNOTSUPP);
335 /*
336 * Disallow write attempts if the filesystem is mounted read-only.
337 */
338 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
339 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
340 vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
341 return (EROFS);
342 if (vap->va_size != VNOVAL) {
343 switch (vp->v_type) {
344 case VDIR:
345 return (EISDIR);
346 case VREG:
347 /*
348 * Disallow write attempts if the filesystem is
349 * mounted read-only.
350 */
351 if (vp->v_mount->mnt_flag & MNT_RDONLY)
352 return (EROFS);
353 vnode_pager_setsize(vp, (u_long)vap->va_size);
354 tsize = np->n_size;
355 np->n_size = vap->va_size;
356 break;
357 default:
358 return EINVAL;
359 };
360 }
361 error = ncp_setattr(vp, vap, ap->a_cred, ap->a_p);
362 if (error && vap->va_size != VNOVAL) {
363 np->n_size = tsize;
364 vnode_pager_setsize(vp, (u_long)tsize);
365 }
366 np->n_atime = 0; /* invalidate cache */
367 VOP_GETATTR(vp, vap, ap->a_cred, ap->a_p);
368 np->n_mtime = vap->va_mtime.tv_sec;
369 return (0);
370}
371/*
372 * nwfs_read call.
373 */
374static int
375nwfs_read(ap)
376 struct vop_read_args /* {
377 struct vnode *a_vp;
378 struct uio *a_uio;
379 int a_ioflag;
380 struct ucred *a_cred;
381 } */ *ap;
382{
383 struct vnode *vp = ap->a_vp;
384 struct uio *uio=ap->a_uio;
385 int error;
386 NCPVNDEBUG("nwfs_read:\n");
387
388 if (vp->v_type != VREG && vp->v_type != VDIR)
389 return (EPERM);
390 error = nwfs_readvnode(vp, uio, ap->a_cred);
391 return error;
392}
393
394static int
395nwfs_write(ap)
396 struct vop_write_args /* {
397 struct vnode *a_vp;
398 struct uio *a_uio;
399 int a_ioflag;
400 struct ucred *a_cred;
401 } */ *ap;
402{
403 struct vnode *vp = ap->a_vp;
404 struct uio *uio = ap->a_uio;
405 int error;
406
407 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
408
409 if (vp->v_type != VREG)
410 return (EPERM);
411 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
412 return(error);
413}
414/*
415 * nwfs_create call
416 * Create a regular file. On entry the directory to contain the file being
417 * created is locked. We must release before we return. We must also free
418 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
419 * only if the SAVESTART bit in cn_flags is clear on success.
420 */
421static int
422nwfs_create(ap)
423 struct vop_create_args /* {
424 struct vnode *a_dvp;
425 struct vnode **a_vpp;
426 struct componentname *a_cnp;
427 struct vattr *a_vap;
428 } */ *ap;
429{
430 struct vnode *dvp = ap->a_dvp;
431 struct vattr *vap = ap->a_vap;
432 struct vnode **vpp=ap->a_vpp;
433 struct componentname *cnp = ap->a_cnp;
434 struct vnode *vp = (struct vnode *)0;
435 int error = 0, fmode;
436 struct vattr vattr;
437 struct nwnode *np;
438 struct ncp_open_info no;
439 struct nwmount *nmp=VTONWFS(dvp);
440 ncpfid fid;
441
442
443 NCPVNDEBUG("\n");
444 *vpp = NULL;
445 if (vap->va_type == VSOCK)
446 return (EOPNOTSUPP);
447 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
448 return (error);
449 }
450 fmode = AR_READ | AR_WRITE;
451/* if (vap->va_vaflags & VA_EXCLUSIVE)
452 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
453
454 error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr,
455 OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
456 0, fmode, &no, cnp->cn_proc, cnp->cn_cred);
457 if (!error) {
458 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_proc,cnp->cn_cred);
459 fid.f_parent = VTONW(dvp)->n_fid.f_id;
460 fid.f_id = no.fattr.dirEntNum;
461 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
462 if (!error) {
463 np = VTONW(vp);
464 np->opened = 0;
465 *vpp = vp;
466 }
467 if (cnp->cn_flags & MAKEENTRY)
468 cache_enter(dvp, vp, cnp);
469 }
470 return (error);
471}
472
473/*
474 * nwfs_remove call. It isn't possible to emulate UFS behaivour because
475 * NetWare doesn't allow delete/rename operations on an opened file.
476 */
477static int
478nwfs_remove(ap)
479 struct vop_remove_args /* {
480 struct vnodeop_desc *a_desc;
481 struct vnode * a_dvp;
482 struct vnode * a_vp;
483 struct componentname * a_cnp;
484 } */ *ap;
485{
486 struct vnode *vp = ap->a_vp;
487 struct vnode *dvp = ap->a_dvp;
488 struct componentname *cnp = ap->a_cnp;
489 struct nwnode *np = VTONW(vp);
490 struct nwmount *nmp = VTONWFS(vp);
491 int error;
492
493 if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) {
494 error = EPERM;
495 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
496 error = EIO;
497 } else {
498 cache_purge(vp);
499 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
500 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred);
501 if (error == 0)
502 np->n_flag |= NSHOULDFREE;
503 else if (error == 0x899c)
504 error = EACCES;
505 }
506 return (error);
507}
508
509/*
510 * nwfs_file rename call
511 */
512static int
513nwfs_rename(ap)
514 struct vop_rename_args /* {
515 struct vnode *a_fdvp;
516 struct vnode *a_fvp;
517 struct componentname *a_fcnp;
518 struct vnode *a_tdvp;
519 struct vnode *a_tvp;
520 struct componentname *a_tcnp;
521 } */ *ap;
522{
523 struct vnode *fvp = ap->a_fvp;
524 struct vnode *tvp = ap->a_tvp;
525 struct vnode *fdvp = ap->a_fdvp;
526 struct vnode *tdvp = ap->a_tdvp;
527 struct componentname *tcnp = ap->a_tcnp;
528 struct componentname *fcnp = ap->a_fcnp;
529 struct nwmount *nmp=VTONWFS(fvp);
530 u_int16_t oldtype = 6;
531 int error=0;
532
533 /* Check for cross-device rename */
534 if ((fvp->v_mount != tdvp->v_mount) ||
535 (tvp && (fvp->v_mount != tvp->v_mount))) {
536 error = EXDEV;
537 goto out;
538 }
539
540 if (tvp && tvp->v_usecount > 1) {
541 error = EBUSY;
542 goto out;
543 }
544 if (tvp && tvp != fvp) {
545 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
546 tcnp->cn_namelen, tcnp->cn_nameptr,
547 tcnp->cn_proc, tcnp->cn_cred);
548 if (error == 0x899c) error = EACCES;
549 if (error)
550 goto out;
551 }
552 if (fvp->v_type == VDIR) {
553 oldtype |= NW_TYPE_SUBDIR;
554 } else if (fvp->v_type == VREG) {
555 oldtype |= NW_TYPE_FILE;
556 } else
557 return EINVAL;
558 error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
559 oldtype, &nmp->m.nls,
560 VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
561 VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
562 tcnp->cn_proc,tcnp->cn_cred);
563
564 if (error == 0x8992)
565 error = EEXIST;
566 if (fvp->v_type == VDIR) {
567 if (tvp != NULL && tvp->v_type == VDIR)
568 cache_purge(tdvp);
569 cache_purge(fdvp);
570 }
571out:
572 if (tdvp == tvp)
573 vrele(tdvp);
574 else
575 vput(tdvp);
576 if (tvp)
577 vput(tvp);
578 vrele(fdvp);
579 vrele(fvp);
580 nwfs_attr_cacheremove(fdvp);
581 nwfs_attr_cacheremove(tdvp);
582 /*
583 * Need to get rid of old vnodes, because netware will change
584 * file id on rename
585 */
586 vgone(fvp);
587 if (tvp)
588 vgone(tvp);
589 /*
590 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
591 */
592 if (error == ENOENT)
593 error = 0;
594 return (error);
595}
596
597/*
598 * nwfs hard link create call
599 * Netware filesystems don't know what links are.
600 */
601static int
602nwfs_link(ap)
603 struct vop_link_args /* {
604 struct vnode *a_tdvp;
605 struct vnode *a_vp;
606 struct componentname *a_cnp;
607 } */ *ap;
608{
609 return EOPNOTSUPP;
610}
611
612/*
613 * nwfs_symlink link create call
614 * Netware filesystems don't know what symlinks are.
615 */
616static int
617nwfs_symlink(ap)
618 struct vop_symlink_args /* {
619 struct vnode *a_dvp;
620 struct vnode **a_vpp;
621 struct componentname *a_cnp;
622 struct vattr *a_vap;
623 char *a_target;
624 } */ *ap;
625{
626 return (EOPNOTSUPP);
627}
628
629static int nwfs_mknod(ap)
630 struct vop_mknod_args /* {
631 } */ *ap;
632{
633 return (EOPNOTSUPP);
634}
635
636/*
637 * nwfs_mkdir call
638 */
639static int
640nwfs_mkdir(ap)
641 struct vop_mkdir_args /* {
642 struct vnode *a_dvp;
643 struct vnode **a_vpp;
644 struct componentname *a_cnp;
645 struct vattr *a_vap;
646 } */ *ap;
647{
648 struct vnode *dvp = ap->a_dvp;
649/* struct vattr *vap = ap->a_vap;*/
650 struct componentname *cnp = ap->a_cnp;
651 int len=cnp->cn_namelen;
652 struct ncp_open_info no;
653 struct nwnode *np;
654 struct vnode *newvp = (struct vnode *)0;
655 ncpfid fid;
656 int error = 0;
657 struct vattr vattr;
658 char *name=cnp->cn_nameptr;
659
660 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
661 return (error);
662 }
663 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
664 return EEXIST;
665 }
666 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
667 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
668 &no, cnp->cn_proc, cnp->cn_cred) != 0) {
669 error = EACCES;
670 } else {
671 error = 0;
672 }
673 if (!error) {
674 fid.f_parent = VTONW(dvp)->n_fid.f_id;
675 fid.f_id = no.fattr.dirEntNum;
676 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
677 if (!error) {
678 np = VTONW(newvp);
679 newvp->v_type = VDIR;
680 *ap->a_vpp = newvp;
681 }
682 }
683 return (error);
684}
685
686/*
687 * nwfs_remove directory call
688 */
689static int
690nwfs_rmdir(ap)
691 struct vop_rmdir_args /* {
692 struct vnode *a_dvp;
693 struct vnode *a_vp;
694 struct componentname *a_cnp;
695 } */ *ap;
696{
697 struct vnode *vp = ap->a_vp;
698 struct vnode *dvp = ap->a_dvp;
699 struct componentname *cnp = ap->a_cnp;
700 struct nwnode *np = VTONW(vp);
701 struct nwmount *nmp = VTONWFS(vp);
702 struct nwnode *dnp = VTONW(dvp);
703 int error = EIO;
704
705 if (dvp == vp)
706 return EINVAL;
707
708 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
709 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred);
710 if (error == 0)
711 np->n_flag |= NSHOULDFREE;
712 else if (error == NWE_DIR_NOT_EMPTY)
713 error = ENOTEMPTY;
714 dnp->n_flag |= NMODIFIED;
715 nwfs_attr_cacheremove(dvp);
716 cache_purge(dvp);
717 cache_purge(vp);
718 return (error);
719}
720
721/*
722 * nwfs_readdir call
723 */
724static int
725nwfs_readdir(ap)
726 struct vop_readdir_args /* {
727 struct vnode *a_vp;
728 struct uio *a_uio;
729 struct ucred *a_cred;
730 int *a_eofflag;
731 u_long *a_cookies;
732 int a_ncookies;
733 } */ *ap;
734{
735 struct vnode *vp = ap->a_vp;
736 struct uio *uio = ap->a_uio;
737 int error;
738
739 if (vp->v_type != VDIR)
740 return (EPERM);
741 if (ap->a_ncookies) {
742 printf("nwfs_readdir: no support for cookies now...");
743 return (EOPNOTSUPP);
744 }
745
746 error = nwfs_readvnode(vp, uio, ap->a_cred);
747 return error;
748}
749/* ARGSUSED */
750static int
751nwfs_fsync(ap)
752 struct vop_fsync_args /* {
753 struct vnodeop_desc *a_desc;
754 struct vnode * a_vp;
755 struct ucred * a_cred;
756 int a_waitfor;
757 struct proc * a_p;
758 } */ *ap;
759{
760/* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_p, 1));*/
761 return (0);
762}
763
764/* ARGSUSED */
765static
766int nwfs_print (ap)
767 struct vop_print_args /* {
768 struct vnode *a_vp;
769 } */ *ap;
770{
771 struct vnode *vp = ap->a_vp;
772 struct nwnode *np = VTONW(vp);
773
774 printf("nwfs node: name = '%s', fid = %d, pfid = %d\n",
775 np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
776 return (0);
777}
778
779static int nwfs_pathconf (ap)
780 struct vop_pathconf_args /* {
781 struct vnode *vp;
782 int name;
783 register_t *retval;
784 } */ *ap;
785{
786 int name=ap->a_name, error=0;
787 register_t *retval=ap->a_retval;
788
789 switch(name){
790 case _PC_LINK_MAX:
791 *retval=0;
792 break;
793 case _PC_NAME_MAX:
794 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
795 break;
796 case _PC_PATH_MAX:
797 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
798 break;
799 default:
800 error=EINVAL;
801 }
802 return(error);
803}
804
805static int nwfs_strategy (ap)
806 struct vop_strategy_args /* {
807 struct buf *a_bp
808 } */ *ap;
809{
810 struct buf *bp=ap->a_bp;
811 struct ucred *cr;
812 struct proc *p;
813 int error = 0;
814
815 NCPVNDEBUG("\n");
816 if (bp->b_flags & B_PHYS)
817 panic("nwfs physio");
818 if (bp->b_flags & B_ASYNC)
819 p = (struct proc *)0;
820 else
821 p = curproc; /* XXX */
822 if (bp->b_flags & B_READ)
823 cr = bp->b_rcred;
824 else
825 cr = bp->b_wcred;
826 /*
827 * If the op is asynchronous and an i/o daemon is waiting
828 * queue the request, wake it up and wait for completion
829 * otherwise just do it ourselves.
830 */
831 if ((bp->b_flags & B_ASYNC) == 0 )
832 error = nwfs_doio(bp, cr, p);
833 return (error);
834}
835
836static int
837nwfs_bmap(ap)
838 struct vop_bmap_args /* {
839 struct vnode *a_vp;
840 daddr_t a_bn;
841 struct vnode **a_vpp;
842 daddr_t *a_bnp;
843 int *a_runp;
844 int *a_runb;
845 } */ *ap;
846{
847 struct vnode *vp = ap->a_vp;
848
849 if (ap->a_vpp != NULL)
850 *ap->a_vpp = vp;
851 if (ap->a_bnp != NULL)
852 *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize);
853 if (ap->a_runp != NULL)
854 *ap->a_runp = 0;
855 if (ap->a_runb != NULL)
856 *ap->a_runb = 0;
857 return (0);
858}
859
860int
861nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
862 struct vnode *dvp, struct vnode **vpp)
863{
864 int error;
865 struct nwnode *newnp;
866 struct vnode *vp;
867
868 *vpp = NULL;
869 error = nwfs_allocvp(mp, fid, &vp);
870 if (error)
871 return error;
872 newnp = VTONW(vp);
873 if (fap) {
874 newnp->n_attr = fap->attributes;
875 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
876 nwfs_attr_cacheenter(vp, fap);
877 }
878 if (dvp) {
879 newnp->n_parent = VTONW(dvp)->n_fid;
880 if ((newnp->n_flag & NNEW) && vp->v_type == VDIR) {
881 if ((dvp->v_flag & VROOT) == 0) {
882 newnp->n_refparent = 1;
883 vref(dvp); /* vhold */
884 }
885 }
886 } else {
887 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
888 printf("new vnode '%s' borned without parent ?\n",newnp->n_name);
889 }
890 newnp->n_flag &= ~NNEW;
891 *vpp = vp;
892 return 0;
893}
894
895/*
896 * How to keep the brain busy ...
897 * Currently lookup routine can make two lookup for vnode. This can be
898 * avoided by reorg the code.
899 */
900int
901nwfs_lookup(ap)
902 struct vop_lookup_args /* {
903 struct vnodeop_desc *a_desc;
904 struct vnode *a_dvp;
905 struct vnode **a_vpp;
906 struct componentname *a_cnp;
907 } */ *ap;
908{
909 struct componentname *cnp = ap->a_cnp;
910 struct vnode *dvp = ap->a_dvp;
911 struct vnode **vpp = ap->a_vpp;
912 int flags = cnp->cn_flags;
913 struct vnode *vp;
914 struct nwmount *nmp;
915 struct mount *mp = dvp->v_mount;
916 struct nwnode *dnp, *npp;
917 struct nw_entry_info fattr, *fap;
918 ncpfid fid;
919 int nameiop=cnp->cn_nameiop, islastcn;
920 int lockparent, wantparent, error = 0, notfound;
921 struct proc *p = cnp->cn_proc;
922 char _name[cnp->cn_namelen+1];
923 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
924 _name[cnp->cn_namelen]=0;
925
926 if (dvp->v_type != VDIR)
927 return (ENOTDIR);
928 if ((flags & ISDOTDOT) && (dvp->v_flag & VROOT)) {
929 printf("nwfs_lookup: invalid '..'\n");
930 return EIO;
931 }
932
933 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
934 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
935
936 islastcn = flags & ISLASTCN;
937 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP))
938 return (EROFS);
939 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, p)))
940 return (error);
941 lockparent = flags & LOCKPARENT;
942 wantparent = flags & (LOCKPARENT|WANTPARENT);
943 nmp = VFSTONWFS(mp);
944 dnp = VTONW(dvp);
945/*
946printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & ISDOTDOT);
947*/
948 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
949 (nameiop == CREATE || nameiop == RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
950 if (error)
951 return ENOENT;
952
953 error = cache_lookup(dvp, vpp, cnp);
954 NCPVNDEBUG("cache_lookup returned %d\n",error);
955 if (error > 0)
956 return error;
957 if (error) { /* name was found */
958 struct vattr vattr;
959 int vpid;
960
961 vp = *vpp;
962 vpid = vp->v_id;
963 if (dvp == vp) { /* lookup on current */
964 vref(vp);
965 error = 0;
966 NCPVNDEBUG("cached '.'");
967 } else if (flags & ISDOTDOT) {
968 VOP_UNLOCK(dvp, 0, p); /* unlock parent */
969 error = vget(vp, LK_EXCLUSIVE, p);
970 if (!error && lockparent && islastcn)
971 error = vn_lock(dvp, LK_EXCLUSIVE, p);
972 } else {
973 error = vget(vp, LK_EXCLUSIVE, p);
974 if (!lockparent || error || !islastcn)
975 VOP_UNLOCK(dvp, 0, p);
976 }
977 if (!error) {
978 if (vpid == vp->v_id) {
979 if (!VOP_GETATTR(vp, &vattr, cnp->cn_cred, p)
980 && vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) {
981 if (nameiop != LOOKUP && islastcn)
982 cnp->cn_flags |= SAVENAME;
983 NCPVNDEBUG("use cached vnode");
984 return (0);
985 }
986 cache_purge(vp);
987 }
988 vput(vp);
989 if (lockparent && dvp != vp && islastcn)
990 VOP_UNLOCK(dvp, 0, p);
991 }
992 error = vn_lock(dvp, LK_EXCLUSIVE, p);
993 *vpp = NULLVP;
994 if (error)
995 return (error);
996 }
997 /* not in cache, so ... */
998 error = 0;
999 *vpp = NULLVP;
1000 fap = NULL;
1001 if (flags & ISDOTDOT) {
1002 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
1003 fid = nmp->n_rootent;
1004 fap = NULL;
1005 notfound = 0;
1006 } else {
1007 error = nwfs_lookupnp(nmp, dnp->n_parent, p, &npp);
1008 if (error) {
1009 return error;
1010 }
1011 fid = dnp->n_parent;
1012 fap = &fattr;
1013 /*np = *npp;*/
1014 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
1015 0, NULL, fap, p, cnp->cn_cred);
1016 }
1017 } else {
1018 fap = &fattr;
1019 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
1020 fap, p, cnp->cn_cred);
1021 fid.f_id = fap->dirEntNum;
1022 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
1023 fid.f_parent = dnp->n_fid.f_parent;
1024 } else
1025 fid.f_parent = dnp->n_fid.f_id;
1026 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
1027 }
1028 if (notfound && notfound < 0x80 )
1029 return (notfound); /* hard error */
1030 if (notfound) { /* entry not found */
1031 /* Handle RENAME or CREATE case... */
1032 if ((nameiop == CREATE || nameiop == RENAME) && wantparent && islastcn) {
1033 cnp->cn_flags |= SAVENAME;
1034 if (!lockparent)
1035 VOP_UNLOCK(dvp, 0, p);
1036 return (EJUSTRETURN);
1037 }
1038 return ENOENT;
1039 }/* else {
1040 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
1041 }*/
1042 /* handle DELETE case ... */
1043 if (nameiop == DELETE && islastcn) { /* delete last component */
1044 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_proc);
1045 if (error) return (error);
1046 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
1047 VREF(dvp);
1048 *vpp = dvp;
1049 return 0;
1050 }
1051 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1052 if (error) return (error);
1053 *vpp = vp;
1054 cnp->cn_flags |= SAVENAME; /* I free it later */
1055 if (!lockparent) VOP_UNLOCK(dvp,0,p);
1056 return (0);
1057 }
1058 if (nameiop == RENAME && islastcn && wantparent) {
1059 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_proc);
1060 if (error) return (error);
1061 if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
1062 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1063 if (error) return (error);
1064 *vpp = vp;
1065 cnp->cn_flags |= SAVENAME;
1066 if (!lockparent)
1067 VOP_UNLOCK(dvp,0,p);
1068 return (0);
1069 }
1070 if (flags & ISDOTDOT) {
1071 VOP_UNLOCK(dvp, 0, p); /* race to get the inode */
1072 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
1073 if (error) {
1074 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, p);
1075 return (error);
1076 }
1077 if (lockparent && islastcn &&
1078 (error = vn_lock(dvp, LK_EXCLUSIVE, p))) {
1079 vput(vp);
1080 return (error);
1081 }
1082 *vpp = vp;
1083 } else if (NWCMPF(&dnp->n_fid, &fid)) {
1084 vref(dvp);
1085 *vpp = dvp;
1086 } else {
1087 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1088 if (error) return (error);
1089 *vpp = vp;
1090 NCPVNDEBUG("lookup: getnewvp!\n");
1091 if (!lockparent || !islastcn)
1092 VOP_UNLOCK(dvp, 0, p);
1093 }
1094 if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) {
1095 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
1096 cache_enter(dvp, *vpp, cnp);
1097 }
1098 return (0);
1099}