oops, forgot one. Remove another curproc/cred dependancy
[dragonfly.git] / sys / vfs / nwfs / nwfs_vnops.c
CommitLineData
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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 $
3b568787 33 * $DragonFly: src/sys/vfs/nwfs/nwfs_vnops.c,v 1.4 2003/06/26 05:55:19 dillon Exp $
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34 */
35#include <sys/param.h>
36#include <sys/systm.h>
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37#include <sys/kernel.h>
38#include <sys/buf.h>
39#include <sys/proc.h>
dadab5e9 40#include <sys/namei.h>
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41#include <sys/fcntl.h>
42#include <sys/mount.h>
43#include <sys/unistd.h>
44#include <sys/vnode.h>
45
46#include <vm/vm.h>
47#include <vm/vm_extern.h>
48#include <vm/vm_zone.h>
49
50#include <netncp/ncp.h>
51#include <netncp/ncp_conn.h>
52#include <netncp/ncp_subr.h>
53#include <netncp/nwerror.h>
54#include <netncp/ncp_nls.h>
55
56#include <nwfs/nwfs.h>
57#include <nwfs/nwfs_node.h>
58#include <nwfs/nwfs_subr.h>
59
60/*
61 * Prototypes for NWFS vnode operations
62 */
63static int nwfs_create(struct vop_create_args *);
64static int nwfs_mknod(struct vop_mknod_args *);
65static int nwfs_open(struct vop_open_args *);
66static int nwfs_close(struct vop_close_args *);
67static int nwfs_access(struct vop_access_args *);
68static int nwfs_getattr(struct vop_getattr_args *);
69static int nwfs_setattr(struct vop_setattr_args *);
70static int nwfs_read(struct vop_read_args *);
71static int nwfs_write(struct vop_write_args *);
72static int nwfs_fsync(struct vop_fsync_args *);
73static int nwfs_remove(struct vop_remove_args *);
74static int nwfs_link(struct vop_link_args *);
75static int nwfs_lookup(struct vop_lookup_args *);
76static int nwfs_rename(struct vop_rename_args *);
77static int nwfs_mkdir(struct vop_mkdir_args *);
78static int nwfs_rmdir(struct vop_rmdir_args *);
79static int nwfs_symlink(struct vop_symlink_args *);
80static int nwfs_readdir(struct vop_readdir_args *);
81static int nwfs_bmap(struct vop_bmap_args *);
82static int nwfs_strategy(struct vop_strategy_args *);
83static int nwfs_print(struct vop_print_args *);
84static int nwfs_pathconf(struct vop_pathconf_args *ap);
85
86/* Global vfs data structures for nwfs */
87vop_t **nwfs_vnodeop_p;
88static struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
89 { &vop_default_desc, (vop_t *) vop_defaultop },
90 { &vop_access_desc, (vop_t *) nwfs_access },
91 { &vop_bmap_desc, (vop_t *) nwfs_bmap },
92 { &vop_open_desc, (vop_t *) nwfs_open },
93 { &vop_close_desc, (vop_t *) nwfs_close },
94 { &vop_create_desc, (vop_t *) nwfs_create },
95 { &vop_fsync_desc, (vop_t *) nwfs_fsync },
96 { &vop_getattr_desc, (vop_t *) nwfs_getattr },
97 { &vop_getpages_desc, (vop_t *) nwfs_getpages },
98 { &vop_putpages_desc, (vop_t *) nwfs_putpages },
99 { &vop_ioctl_desc, (vop_t *) nwfs_ioctl },
100 { &vop_inactive_desc, (vop_t *) nwfs_inactive },
101 { &vop_islocked_desc, (vop_t *) vop_stdislocked },
102 { &vop_link_desc, (vop_t *) nwfs_link },
103 { &vop_lock_desc, (vop_t *) vop_stdlock },
104 { &vop_lookup_desc, (vop_t *) nwfs_lookup },
105 { &vop_mkdir_desc, (vop_t *) nwfs_mkdir },
106 { &vop_mknod_desc, (vop_t *) nwfs_mknod },
107 { &vop_pathconf_desc, (vop_t *) nwfs_pathconf },
108 { &vop_print_desc, (vop_t *) nwfs_print },
109 { &vop_read_desc, (vop_t *) nwfs_read },
110 { &vop_readdir_desc, (vop_t *) nwfs_readdir },
111 { &vop_reclaim_desc, (vop_t *) nwfs_reclaim },
112 { &vop_remove_desc, (vop_t *) nwfs_remove },
113 { &vop_rename_desc, (vop_t *) nwfs_rename },
114 { &vop_rmdir_desc, (vop_t *) nwfs_rmdir },
115 { &vop_setattr_desc, (vop_t *) nwfs_setattr },
116 { &vop_strategy_desc, (vop_t *) nwfs_strategy },
117 { &vop_symlink_desc, (vop_t *) nwfs_symlink },
118 { &vop_unlock_desc, (vop_t *) vop_stdunlock },
119 { &vop_write_desc, (vop_t *) nwfs_write },
120 { NULL, NULL }
121};
122static struct vnodeopv_desc nwfs_vnodeop_opv_desc =
123 { &nwfs_vnodeop_p, nwfs_vnodeop_entries };
124
125VNODEOP_SET(nwfs_vnodeop_opv_desc);
126
127/*
128 * nwfs_access vnode op
129 * for now just return ok
130 */
131static int
132nwfs_access(ap)
133 struct vop_access_args /* {
134 struct vnode *a_vp;
135 int a_mode;
136 struct ucred *a_cred;
dadab5e9 137 struct thread *a_td;
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138 } */ *ap;
139{
140 struct vnode *vp = ap->a_vp;
141 struct ucred *cred = ap->a_cred;
142 u_int mode = ap->a_mode;
143 struct nwmount *nmp = VTONWFS(vp);
144 int error = 0;
145
146 NCPVNDEBUG("\n");
147 if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
148 switch (vp->v_type) {
149 case VREG: case VDIR: case VLNK:
150 return (EROFS);
151 default:
152 break;
153 }
154 }
155 if (cred->cr_uid == 0)
156 return 0;
157 if (cred->cr_uid != nmp->m.uid) {
158 mode >>= 3;
159 if (!groupmember(nmp->m.gid, cred))
160 mode >>= 3;
161 }
162 error = (((vp->v_type == VREG) ? nmp->m.file_mode : nmp->m.dir_mode) & mode) == mode ? 0 : EACCES;
163 return error;
164}
165/*
166 * nwfs_open vnode op
167 */
168/* ARGSUSED */
169static int
170nwfs_open(ap)
171 struct vop_open_args /* {
172 struct vnode *a_vp;
173 int a_mode;
174 struct ucred *a_cred;
dadab5e9 175 struct thread *a_td;
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176 } */ *ap;
177{
178 struct vnode *vp = ap->a_vp;
179 int mode = ap->a_mode;
180 struct nwnode *np = VTONW(vp);
181 struct ncp_open_info no;
182 struct nwmount *nmp = VTONWFS(vp);
183 struct vattr vattr;
184 int error, nwm;
185
186 NCPVNDEBUG("%s,%d\n",np->n_name, np->opened);
187 if (vp->v_type != VREG && vp->v_type != VDIR) {
188 NCPFATAL("open vtype = %d\n", vp->v_type);
189 return (EACCES);
190 }
191 if (vp->v_type == VDIR) return 0; /* nothing to do now */
192 if (np->n_flag & NMODIFIED) {
3b568787 193 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
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194 return (error);
195 np->n_atime = 0;
3b568787 196 error = VOP_GETATTR(vp, &vattr, ap->a_td);
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197 if (error) return (error);
198 np->n_mtime = vattr.va_mtime.tv_sec;
199 } else {
3b568787 200 error = VOP_GETATTR(vp, &vattr, ap->a_td);
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201 if (error) return (error);
202 if (np->n_mtime != vattr.va_mtime.tv_sec) {
3b568787 203 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
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204 return (error);
205 np->n_mtime = vattr.va_mtime.tv_sec;
206 }
207 }
208 if (np->opened) {
209 np->opened++;
210 return 0;
211 }
212 nwm = AR_READ;
213 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
214 nwm |= AR_WRITE;
215 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
dadab5e9 216 0, nwm, &no, ap->a_td, ap->a_cred);
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217 if (error) {
218 if (mode & FWRITE)
219 return EACCES;
220 nwm = AR_READ;
221 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
dadab5e9 222 nwm, &no, ap->a_td,ap->a_cred);
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223 }
224 if (!error) {
225 np->opened++;
226 np->n_fh = no.fh;
227 np->n_origfh = no.origfh;
228 }
229 np->n_atime = 0;
230 return (error);
231}
232
233static int
234nwfs_close(ap)
235 struct vop_close_args /* {
236 struct vnodeop_desc *a_desc;
237 struct vnode *a_vp;
238 int a_fflag;
239 struct ucred *a_cred;
dadab5e9 240 struct thread *a_td;
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241 } */ *ap;
242{
243 struct vnode *vp = ap->a_vp;
244 struct nwnode *np = VTONW(vp);
245 int error;
246
dadab5e9 247 NCPVNDEBUG("name=%s,td=%p,c=%d\n",np->n_name,ap->a_td,np->opened);
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248
249 if (vp->v_type == VDIR) return 0; /* nothing to do now */
250 error = 0;
251 simple_lock(&vp->v_interlock);
252 if (np->opened == 0) {
253 simple_unlock(&vp->v_interlock);
254 return 0;
255 }
256 simple_unlock(&vp->v_interlock);
3b568787 257 error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
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258 simple_lock(&vp->v_interlock);
259 if (np->opened == 0) {
260 simple_unlock(&vp->v_interlock);
261 return 0;
262 }
263 if (--np->opened == 0) {
264 simple_unlock(&vp->v_interlock);
265 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
3b568787 266 ap->a_td, proc0.p_ucred);
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267 } else
268 simple_unlock(&vp->v_interlock);
269 np->n_atime = 0;
270 return (error);
271}
272
273/*
274 * nwfs_getattr call from vfs.
275 */
276static int
277nwfs_getattr(ap)
278 struct vop_getattr_args /* {
279 struct vnode *a_vp;
280 struct vattr *a_vap;
281 struct ucred *a_cred;
dadab5e9 282 struct thread *a_td;
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283 } */ *ap;
284{
285 struct vnode *vp = ap->a_vp;
286 struct nwnode *np = VTONW(vp);
287 struct vattr *va=ap->a_vap;
288 struct nwmount *nmp = VTONWFS(vp);
289 struct nw_entry_info fattr;
290 int error;
291 u_int32_t oldsize;
292
293 NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
294 error = nwfs_attr_cachelookup(vp,va);
295 if (!error) return 0;
296 NCPVNDEBUG("not in cache\n");
297 oldsize = np->n_size;
298 if (np->n_flag & NVOLUME) {
299 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
3b568787 300 ap->a_td,proc0.p_ucred);
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301 } else {
302 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
3b568787 303 np->n_name, &fattr, ap->a_td, proc0.p_ucred);
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304 }
305 if (error) {
306 NCPVNDEBUG("error %d\n", error);
307 return error;
308 }
309 nwfs_attr_cacheenter(vp, &fattr);
310 *va = np->n_vattr;
311 if (np->opened)
312 np->n_size = oldsize;
313 return (0);
314}
315/*
316 * nwfs_setattr call from vfs.
317 */
318static int
319nwfs_setattr(ap)
320 struct vop_setattr_args /* {
321 struct vnode *a_vp;
322 struct vattr *a_vap;
323 struct ucred *a_cred;
dadab5e9 324 struct thread *a_td;
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325 } */ *ap;
326{
327 struct vnode *vp = ap->a_vp;
328 struct nwnode *np = VTONW(vp);
329 struct vattr *vap = ap->a_vap;
330 u_quad_t tsize=0;
331 int error = 0;
332
333 NCPVNDEBUG("\n");
334 if (vap->va_flags != VNOVAL)
335 return (EOPNOTSUPP);
336 /*
337 * Disallow write attempts if the filesystem is mounted read-only.
338 */
339 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
340 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
341 vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
342 return (EROFS);
343 if (vap->va_size != VNOVAL) {
344 switch (vp->v_type) {
345 case VDIR:
346 return (EISDIR);
347 case VREG:
348 /*
349 * Disallow write attempts if the filesystem is
350 * mounted read-only.
351 */
352 if (vp->v_mount->mnt_flag & MNT_RDONLY)
353 return (EROFS);
354 vnode_pager_setsize(vp, (u_long)vap->va_size);
355 tsize = np->n_size;
356 np->n_size = vap->va_size;
357 break;
358 default:
359 return EINVAL;
360 };
361 }
dadab5e9 362 error = ncp_setattr(vp, vap, ap->a_cred, ap->a_td);
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363 if (error && vap->va_size != VNOVAL) {
364 np->n_size = tsize;
365 vnode_pager_setsize(vp, (u_long)tsize);
366 }
367 np->n_atime = 0; /* invalidate cache */
3b568787 368 VOP_GETATTR(vp, vap, ap->a_td);
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369 np->n_mtime = vap->va_mtime.tv_sec;
370 return (0);
371}
372/*
373 * nwfs_read call.
374 */
375static int
376nwfs_read(ap)
377 struct vop_read_args /* {
378 struct vnode *a_vp;
379 struct uio *a_uio;
380 int a_ioflag;
381 struct ucred *a_cred;
382 } */ *ap;
383{
384 struct vnode *vp = ap->a_vp;
385 struct uio *uio=ap->a_uio;
386 int error;
387 NCPVNDEBUG("nwfs_read:\n");
388
389 if (vp->v_type != VREG && vp->v_type != VDIR)
390 return (EPERM);
391 error = nwfs_readvnode(vp, uio, ap->a_cred);
392 return error;
393}
394
395static int
396nwfs_write(ap)
397 struct vop_write_args /* {
398 struct vnode *a_vp;
399 struct uio *a_uio;
400 int a_ioflag;
401 struct ucred *a_cred;
402 } */ *ap;
403{
404 struct vnode *vp = ap->a_vp;
405 struct uio *uio = ap->a_uio;
406 int error;
407
408 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
409
410 if (vp->v_type != VREG)
411 return (EPERM);
412 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
413 return(error);
414}
415/*
416 * nwfs_create call
417 * Create a regular file. On entry the directory to contain the file being
418 * created is locked. We must release before we return. We must also free
419 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
420 * only if the SAVESTART bit in cn_flags is clear on success.
421 */
422static int
423nwfs_create(ap)
424 struct vop_create_args /* {
425 struct vnode *a_dvp;
426 struct vnode **a_vpp;
427 struct componentname *a_cnp;
428 struct vattr *a_vap;
429 } */ *ap;
430{
431 struct vnode *dvp = ap->a_dvp;
432 struct vattr *vap = ap->a_vap;
433 struct vnode **vpp=ap->a_vpp;
434 struct componentname *cnp = ap->a_cnp;
435 struct vnode *vp = (struct vnode *)0;
436 int error = 0, fmode;
437 struct vattr vattr;
438 struct nwnode *np;
439 struct ncp_open_info no;
440 struct nwmount *nmp=VTONWFS(dvp);
441 ncpfid fid;
442
443
444 NCPVNDEBUG("\n");
445 *vpp = NULL;
446 if (vap->va_type == VSOCK)
447 return (EOPNOTSUPP);
3b568787 448 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
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449 return (error);
450 }
451 fmode = AR_READ | AR_WRITE;
452/* if (vap->va_vaflags & VA_EXCLUSIVE)
453 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
454
455 error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr,
456 OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
dadab5e9 457 0, fmode, &no, cnp->cn_td, cnp->cn_cred);
984263bc 458 if (!error) {
dadab5e9 459 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
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460 fid.f_parent = VTONW(dvp)->n_fid.f_id;
461 fid.f_id = no.fattr.dirEntNum;
462 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
463 if (!error) {
464 np = VTONW(vp);
465 np->opened = 0;
466 *vpp = vp;
467 }
468 if (cnp->cn_flags & MAKEENTRY)
469 cache_enter(dvp, vp, cnp);
470 }
471 return (error);
472}
473
474/*
475 * nwfs_remove call. It isn't possible to emulate UFS behaivour because
476 * NetWare doesn't allow delete/rename operations on an opened file.
477 */
478static int
479nwfs_remove(ap)
480 struct vop_remove_args /* {
481 struct vnodeop_desc *a_desc;
482 struct vnode * a_dvp;
483 struct vnode * a_vp;
484 struct componentname * a_cnp;
485 } */ *ap;
486{
487 struct vnode *vp = ap->a_vp;
488 struct vnode *dvp = ap->a_dvp;
489 struct componentname *cnp = ap->a_cnp;
490 struct nwnode *np = VTONW(vp);
491 struct nwmount *nmp = VTONWFS(vp);
492 int error;
493
494 if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) {
495 error = EPERM;
496 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
497 error = EIO;
498 } else {
499 cache_purge(vp);
500 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
dadab5e9 501 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
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502 if (error == 0)
503 np->n_flag |= NSHOULDFREE;
504 else if (error == 0x899c)
505 error = EACCES;
506 }
507 return (error);
508}
509
510/*
511 * nwfs_file rename call
512 */
513static int
514nwfs_rename(ap)
515 struct vop_rename_args /* {
516 struct vnode *a_fdvp;
517 struct vnode *a_fvp;
518 struct componentname *a_fcnp;
519 struct vnode *a_tdvp;
520 struct vnode *a_tvp;
521 struct componentname *a_tcnp;
522 } */ *ap;
523{
524 struct vnode *fvp = ap->a_fvp;
525 struct vnode *tvp = ap->a_tvp;
526 struct vnode *fdvp = ap->a_fdvp;
527 struct vnode *tdvp = ap->a_tdvp;
528 struct componentname *tcnp = ap->a_tcnp;
529 struct componentname *fcnp = ap->a_fcnp;
530 struct nwmount *nmp=VTONWFS(fvp);
531 u_int16_t oldtype = 6;
532 int error=0;
533
534 /* Check for cross-device rename */
535 if ((fvp->v_mount != tdvp->v_mount) ||
536 (tvp && (fvp->v_mount != tvp->v_mount))) {
537 error = EXDEV;
538 goto out;
539 }
540
541 if (tvp && tvp->v_usecount > 1) {
542 error = EBUSY;
543 goto out;
544 }
545 if (tvp && tvp != fvp) {
546 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
547 tcnp->cn_namelen, tcnp->cn_nameptr,
dadab5e9 548 tcnp->cn_td, tcnp->cn_cred);
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549 if (error == 0x899c) error = EACCES;
550 if (error)
551 goto out;
552 }
553 if (fvp->v_type == VDIR) {
554 oldtype |= NW_TYPE_SUBDIR;
555 } else if (fvp->v_type == VREG) {
556 oldtype |= NW_TYPE_FILE;
557 } else
558 return EINVAL;
559 error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
560 oldtype, &nmp->m.nls,
561 VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
562 VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
dadab5e9 563 tcnp->cn_td,tcnp->cn_cred);
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564
565 if (error == 0x8992)
566 error = EEXIST;
567 if (fvp->v_type == VDIR) {
568 if (tvp != NULL && tvp->v_type == VDIR)
569 cache_purge(tdvp);
570 cache_purge(fdvp);
571 }
572out:
573 if (tdvp == tvp)
574 vrele(tdvp);
575 else
576 vput(tdvp);
577 if (tvp)
578 vput(tvp);
579 vrele(fdvp);
580 vrele(fvp);
581 nwfs_attr_cacheremove(fdvp);
582 nwfs_attr_cacheremove(tdvp);
583 /*
584 * Need to get rid of old vnodes, because netware will change
585 * file id on rename
586 */
587 vgone(fvp);
588 if (tvp)
589 vgone(tvp);
590 /*
591 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
592 */
593 if (error == ENOENT)
594 error = 0;
595 return (error);
596}
597
598/*
599 * nwfs hard link create call
600 * Netware filesystems don't know what links are.
601 */
602static int
603nwfs_link(ap)
604 struct vop_link_args /* {
605 struct vnode *a_tdvp;
606 struct vnode *a_vp;
607 struct componentname *a_cnp;
608 } */ *ap;
609{
610 return EOPNOTSUPP;
611}
612
613/*
614 * nwfs_symlink link create call
615 * Netware filesystems don't know what symlinks are.
616 */
617static int
618nwfs_symlink(ap)
619 struct vop_symlink_args /* {
620 struct vnode *a_dvp;
621 struct vnode **a_vpp;
622 struct componentname *a_cnp;
623 struct vattr *a_vap;
624 char *a_target;
625 } */ *ap;
626{
627 return (EOPNOTSUPP);
628}
629
630static int nwfs_mknod(ap)
631 struct vop_mknod_args /* {
632 } */ *ap;
633{
634 return (EOPNOTSUPP);
635}
636
637/*
638 * nwfs_mkdir call
639 */
640static int
641nwfs_mkdir(ap)
642 struct vop_mkdir_args /* {
643 struct vnode *a_dvp;
644 struct vnode **a_vpp;
645 struct componentname *a_cnp;
646 struct vattr *a_vap;
647 } */ *ap;
648{
649 struct vnode *dvp = ap->a_dvp;
650/* struct vattr *vap = ap->a_vap;*/
651 struct componentname *cnp = ap->a_cnp;
652 int len=cnp->cn_namelen;
653 struct ncp_open_info no;
654 struct nwnode *np;
655 struct vnode *newvp = (struct vnode *)0;
656 ncpfid fid;
657 int error = 0;
658 struct vattr vattr;
659 char *name=cnp->cn_nameptr;
660
3b568787 661 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
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662 return (error);
663 }
664 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
665 return EEXIST;
666 }
667 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
668 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
dadab5e9 669 &no, cnp->cn_td, cnp->cn_cred) != 0) {
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670 error = EACCES;
671 } else {
672 error = 0;
673 }
674 if (!error) {
675 fid.f_parent = VTONW(dvp)->n_fid.f_id;
676 fid.f_id = no.fattr.dirEntNum;
677 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
678 if (!error) {
679 np = VTONW(newvp);
680 newvp->v_type = VDIR;
681 *ap->a_vpp = newvp;
682 }
683 }
684 return (error);
685}
686
687/*
688 * nwfs_remove directory call
689 */
690static int
691nwfs_rmdir(ap)
692 struct vop_rmdir_args /* {
693 struct vnode *a_dvp;
694 struct vnode *a_vp;
695 struct componentname *a_cnp;
696 } */ *ap;
697{
698 struct vnode *vp = ap->a_vp;
699 struct vnode *dvp = ap->a_dvp;
700 struct componentname *cnp = ap->a_cnp;
701 struct nwnode *np = VTONW(vp);
702 struct nwmount *nmp = VTONWFS(vp);
703 struct nwnode *dnp = VTONW(dvp);
704 int error = EIO;
705
706 if (dvp == vp)
707 return EINVAL;
708
709 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
dadab5e9 710 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
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711 if (error == 0)
712 np->n_flag |= NSHOULDFREE;
713 else if (error == NWE_DIR_NOT_EMPTY)
714 error = ENOTEMPTY;
715 dnp->n_flag |= NMODIFIED;
716 nwfs_attr_cacheremove(dvp);
717 cache_purge(dvp);
718 cache_purge(vp);
719 return (error);
720}
721
722/*
723 * nwfs_readdir call
724 */
725static int
726nwfs_readdir(ap)
727 struct vop_readdir_args /* {
728 struct vnode *a_vp;
729 struct uio *a_uio;
730 struct ucred *a_cred;
731 int *a_eofflag;
732 u_long *a_cookies;
733 int a_ncookies;
734 } */ *ap;
735{
736 struct vnode *vp = ap->a_vp;
737 struct uio *uio = ap->a_uio;
738 int error;
739
740 if (vp->v_type != VDIR)
741 return (EPERM);
742 if (ap->a_ncookies) {
743 printf("nwfs_readdir: no support for cookies now...");
744 return (EOPNOTSUPP);
745 }
746
747 error = nwfs_readvnode(vp, uio, ap->a_cred);
748 return error;
749}
750/* ARGSUSED */
751static int
752nwfs_fsync(ap)
753 struct vop_fsync_args /* {
754 struct vnodeop_desc *a_desc;
755 struct vnode * a_vp;
756 struct ucred * a_cred;
757 int a_waitfor;
dadab5e9 758 struct thread *a_td;
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759 } */ *ap;
760{
dadab5e9 761/* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
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762 return (0);
763}
764
765/* ARGSUSED */
766static
767int nwfs_print (ap)
768 struct vop_print_args /* {
769 struct vnode *a_vp;
770 } */ *ap;
771{
772 struct vnode *vp = ap->a_vp;
773 struct nwnode *np = VTONW(vp);
774
775 printf("nwfs node: name = '%s', fid = %d, pfid = %d\n",
776 np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
777 return (0);
778}
779
780static int nwfs_pathconf (ap)
781 struct vop_pathconf_args /* {
782 struct vnode *vp;
783 int name;
784 register_t *retval;
785 } */ *ap;
786{
787 int name=ap->a_name, error=0;
788 register_t *retval=ap->a_retval;
789
790 switch(name){
791 case _PC_LINK_MAX:
792 *retval=0;
793 break;
794 case _PC_NAME_MAX:
795 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
796 break;
797 case _PC_PATH_MAX:
798 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
799 break;
800 default:
801 error=EINVAL;
802 }
803 return(error);
804}
805
806static int nwfs_strategy (ap)
807 struct vop_strategy_args /* {
808 struct buf *a_bp
809 } */ *ap;
810{
811 struct buf *bp=ap->a_bp;
984263bc 812 int error = 0;
dadab5e9 813 struct thread *td = NULL;
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814
815 NCPVNDEBUG("\n");
816 if (bp->b_flags & B_PHYS)
817 panic("nwfs physio");
dadab5e9
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818 if ((bp->b_flags & B_ASYNC) == 0)
819 td = curthread; /* YYY dunno if this is legal */
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820 /*
821 * If the op is asynchronous and an i/o daemon is waiting
822 * queue the request, wake it up and wait for completion
823 * otherwise just do it ourselves.
824 */
825 if ((bp->b_flags & B_ASYNC) == 0 )
3b568787 826 error = nwfs_doio(bp, proc0.p_ucred, td);
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827 return (error);
828}
829
830static int
831nwfs_bmap(ap)
832 struct vop_bmap_args /* {
833 struct vnode *a_vp;
834 daddr_t a_bn;
835 struct vnode **a_vpp;
836 daddr_t *a_bnp;
837 int *a_runp;
838 int *a_runb;
839 } */ *ap;
840{
841 struct vnode *vp = ap->a_vp;
842
843 if (ap->a_vpp != NULL)
844 *ap->a_vpp = vp;
845 if (ap->a_bnp != NULL)
846 *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize);
847 if (ap->a_runp != NULL)
848 *ap->a_runp = 0;
849 if (ap->a_runb != NULL)
850 *ap->a_runb = 0;
851 return (0);
852}
853
854int
855nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
856 struct vnode *dvp, struct vnode **vpp)
857{
858 int error;
859 struct nwnode *newnp;
860 struct vnode *vp;
861
862 *vpp = NULL;
863 error = nwfs_allocvp(mp, fid, &vp);
864 if (error)
865 return error;
866 newnp = VTONW(vp);
867 if (fap) {
868 newnp->n_attr = fap->attributes;
869 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
870 nwfs_attr_cacheenter(vp, fap);
871 }
872 if (dvp) {
873 newnp->n_parent = VTONW(dvp)->n_fid;
874 if ((newnp->n_flag & NNEW) && vp->v_type == VDIR) {
875 if ((dvp->v_flag & VROOT) == 0) {
876 newnp->n_refparent = 1;
877 vref(dvp); /* vhold */
878 }
879 }
880 } else {
881 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
882 printf("new vnode '%s' borned without parent ?\n",newnp->n_name);
883 }
884 newnp->n_flag &= ~NNEW;
885 *vpp = vp;
886 return 0;
887}
888
889/*
890 * How to keep the brain busy ...
891 * Currently lookup routine can make two lookup for vnode. This can be
892 * avoided by reorg the code.
893 */
894int
895nwfs_lookup(ap)
896 struct vop_lookup_args /* {
897 struct vnodeop_desc *a_desc;
898 struct vnode *a_dvp;
899 struct vnode **a_vpp;
900 struct componentname *a_cnp;
901 } */ *ap;
902{
903 struct componentname *cnp = ap->a_cnp;
904 struct vnode *dvp = ap->a_dvp;
905 struct vnode **vpp = ap->a_vpp;
906 int flags = cnp->cn_flags;
907 struct vnode *vp;
908 struct nwmount *nmp;
909 struct mount *mp = dvp->v_mount;
910 struct nwnode *dnp, *npp;
911 struct nw_entry_info fattr, *fap;
912 ncpfid fid;
913 int nameiop=cnp->cn_nameiop, islastcn;
914 int lockparent, wantparent, error = 0, notfound;
dadab5e9 915 struct thread *td = cnp->cn_td;
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916 char _name[cnp->cn_namelen+1];
917 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
918 _name[cnp->cn_namelen]=0;
919
920 if (dvp->v_type != VDIR)
921 return (ENOTDIR);
922 if ((flags & ISDOTDOT) && (dvp->v_flag & VROOT)) {
923 printf("nwfs_lookup: invalid '..'\n");
924 return EIO;
925 }
926
927 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
928 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
929
930 islastcn = flags & ISLASTCN;
931 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP))
932 return (EROFS);
dadab5e9 933 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)))
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934 return (error);
935 lockparent = flags & LOCKPARENT;
936 wantparent = flags & (LOCKPARENT|WANTPARENT);
937 nmp = VFSTONWFS(mp);
938 dnp = VTONW(dvp);
939/*
940printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & ISDOTDOT);
941*/
942 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
943 (nameiop == CREATE || nameiop == RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
944 if (error)
945 return ENOENT;
946
947 error = cache_lookup(dvp, vpp, cnp);
948 NCPVNDEBUG("cache_lookup returned %d\n",error);
949 if (error > 0)
950 return error;
951 if (error) { /* name was found */
952 struct vattr vattr;
953 int vpid;
954
955 vp = *vpp;
956 vpid = vp->v_id;
957 if (dvp == vp) { /* lookup on current */
958 vref(vp);
959 error = 0;
960 NCPVNDEBUG("cached '.'");
961 } else if (flags & ISDOTDOT) {
dadab5e9
MD
962 VOP_UNLOCK(dvp, 0, td); /* unlock parent */
963 error = vget(vp, LK_EXCLUSIVE, td);
984263bc 964 if (!error && lockparent && islastcn)
dadab5e9 965 error = vn_lock(dvp, LK_EXCLUSIVE, td);
984263bc 966 } else {
dadab5e9 967 error = vget(vp, LK_EXCLUSIVE, td);
984263bc 968 if (!lockparent || error || !islastcn)
dadab5e9 969 VOP_UNLOCK(dvp, 0, td);
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970 }
971 if (!error) {
972 if (vpid == vp->v_id) {
3b568787 973 if (!VOP_GETATTR(vp, &vattr, td)
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974 && vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) {
975 if (nameiop != LOOKUP && islastcn)
976 cnp->cn_flags |= SAVENAME;
977 NCPVNDEBUG("use cached vnode");
978 return (0);
979 }
980 cache_purge(vp);
981 }
982 vput(vp);
983 if (lockparent && dvp != vp && islastcn)
dadab5e9 984 VOP_UNLOCK(dvp, 0, td);
984263bc 985 }
dadab5e9 986 error = vn_lock(dvp, LK_EXCLUSIVE, td);
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987 *vpp = NULLVP;
988 if (error)
989 return (error);
990 }
991 /* not in cache, so ... */
992 error = 0;
993 *vpp = NULLVP;
994 fap = NULL;
995 if (flags & ISDOTDOT) {
996 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
997 fid = nmp->n_rootent;
998 fap = NULL;
999 notfound = 0;
1000 } else {
dadab5e9 1001 error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
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1002 if (error) {
1003 return error;
1004 }
1005 fid = dnp->n_parent;
1006 fap = &fattr;
1007 /*np = *npp;*/
1008 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
dadab5e9 1009 0, NULL, fap, td, cnp->cn_cred);
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1010 }
1011 } else {
1012 fap = &fattr;
1013 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
dadab5e9 1014 fap, td, cnp->cn_cred);
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1015 fid.f_id = fap->dirEntNum;
1016 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
1017 fid.f_parent = dnp->n_fid.f_parent;
1018 } else
1019 fid.f_parent = dnp->n_fid.f_id;
1020 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
1021 }
1022 if (notfound && notfound < 0x80 )
1023 return (notfound); /* hard error */
1024 if (notfound) { /* entry not found */
1025 /* Handle RENAME or CREATE case... */
1026 if ((nameiop == CREATE || nameiop == RENAME) && wantparent && islastcn) {
1027 cnp->cn_flags |= SAVENAME;
1028 if (!lockparent)
dadab5e9 1029 VOP_UNLOCK(dvp, 0, td);
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1030 return (EJUSTRETURN);
1031 }
1032 return ENOENT;
1033 }/* else {
1034 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
1035 }*/
1036 /* handle DELETE case ... */
1037 if (nameiop == DELETE && islastcn) { /* delete last component */
dadab5e9 1038 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
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1039 if (error) return (error);
1040 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
1041 VREF(dvp);
1042 *vpp = dvp;
1043 return 0;
1044 }
1045 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1046 if (error) return (error);
1047 *vpp = vp;
1048 cnp->cn_flags |= SAVENAME; /* I free it later */
dadab5e9 1049 if (!lockparent) VOP_UNLOCK(dvp,0,td);
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1050 return (0);
1051 }
1052 if (nameiop == RENAME && islastcn && wantparent) {
dadab5e9 1053 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
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MD
1054 if (error) return (error);
1055 if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
1056 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1057 if (error) return (error);
1058 *vpp = vp;
1059 cnp->cn_flags |= SAVENAME;
1060 if (!lockparent)
dadab5e9 1061 VOP_UNLOCK(dvp,0,td);
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1062 return (0);
1063 }
1064 if (flags & ISDOTDOT) {
dadab5e9 1065 VOP_UNLOCK(dvp, 0, td); /* race to get the inode */
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1066 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
1067 if (error) {
dadab5e9 1068 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, td);
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1069 return (error);
1070 }
1071 if (lockparent && islastcn &&
dadab5e9 1072 (error = vn_lock(dvp, LK_EXCLUSIVE, td))) {
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1073 vput(vp);
1074 return (error);
1075 }
1076 *vpp = vp;
1077 } else if (NWCMPF(&dnp->n_fid, &fid)) {
1078 vref(dvp);
1079 *vpp = dvp;
1080 } else {
1081 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1082 if (error) return (error);
1083 *vpp = vp;
1084 NCPVNDEBUG("lookup: getnewvp!\n");
1085 if (!lockparent || !islastcn)
dadab5e9 1086 VOP_UNLOCK(dvp, 0, td);
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1087 }
1088 if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) {
1089 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
1090 cache_enter(dvp, *vpp, cnp);
1091 }
1092 return (0);
1093}