posixlocks resource limit part 2/4: Add support to /usr/bin/limits.
[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 $
41a01a4d 33 * $DragonFly: src/sys/vfs/nwfs/nwfs_vnops.c,v 1.10 2004/03/01 06:33:22 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
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50#include <netproto/ncp/ncp.h>
51#include <netproto/ncp/ncp_conn.h>
52#include <netproto/ncp/ncp_subr.h>
53#include <netproto/ncp/nwerror.h>
54#include <netproto/ncp/ncp_nls.h>
984263bc 55
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56#include "nwfs.h"
57#include "nwfs_node.h"
58#include "nwfs_subr.h"
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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);
41a01a4d 245 lwkt_tokref vlock;
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246 int error;
247
dadab5e9 248 NCPVNDEBUG("name=%s,td=%p,c=%d\n",np->n_name,ap->a_td,np->opened);
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249
250 if (vp->v_type == VDIR) return 0; /* nothing to do now */
251 error = 0;
41a01a4d 252 lwkt_gettoken(&vlock, vp->v_interlock);
984263bc 253 if (np->opened == 0) {
41a01a4d 254 lwkt_reltoken(&vlock);
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255 return 0;
256 }
41a01a4d 257 lwkt_reltoken(&vlock);
3b568787 258 error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
41a01a4d 259 lwkt_gettokref(&vlock);
984263bc 260 if (np->opened == 0) {
41a01a4d 261 lwkt_reltoken(&vlock);
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262 return 0;
263 }
264 if (--np->opened == 0) {
41a01a4d 265 lwkt_reltoken(&vlock);
984263bc 266 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
3b568787 267 ap->a_td, proc0.p_ucred);
8a8d5d85 268 } else {
41a01a4d 269 lwkt_reltoken(&vlock);
8a8d5d85 270 }
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271 np->n_atime = 0;
272 return (error);
273}
274
275/*
276 * nwfs_getattr call from vfs.
277 */
278static int
279nwfs_getattr(ap)
280 struct vop_getattr_args /* {
281 struct vnode *a_vp;
282 struct vattr *a_vap;
283 struct ucred *a_cred;
dadab5e9 284 struct thread *a_td;
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285 } */ *ap;
286{
287 struct vnode *vp = ap->a_vp;
288 struct nwnode *np = VTONW(vp);
289 struct vattr *va=ap->a_vap;
290 struct nwmount *nmp = VTONWFS(vp);
291 struct nw_entry_info fattr;
292 int error;
293 u_int32_t oldsize;
294
295 NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
296 error = nwfs_attr_cachelookup(vp,va);
297 if (!error) return 0;
298 NCPVNDEBUG("not in cache\n");
299 oldsize = np->n_size;
300 if (np->n_flag & NVOLUME) {
301 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
3b568787 302 ap->a_td,proc0.p_ucred);
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303 } else {
304 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
3b568787 305 np->n_name, &fattr, ap->a_td, proc0.p_ucred);
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306 }
307 if (error) {
308 NCPVNDEBUG("error %d\n", error);
309 return error;
310 }
311 nwfs_attr_cacheenter(vp, &fattr);
312 *va = np->n_vattr;
313 if (np->opened)
314 np->n_size = oldsize;
315 return (0);
316}
317/*
318 * nwfs_setattr call from vfs.
319 */
320static int
321nwfs_setattr(ap)
322 struct vop_setattr_args /* {
323 struct vnode *a_vp;
324 struct vattr *a_vap;
325 struct ucred *a_cred;
dadab5e9 326 struct thread *a_td;
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327 } */ *ap;
328{
329 struct vnode *vp = ap->a_vp;
330 struct nwnode *np = VTONW(vp);
331 struct vattr *vap = ap->a_vap;
332 u_quad_t tsize=0;
333 int error = 0;
334
335 NCPVNDEBUG("\n");
336 if (vap->va_flags != VNOVAL)
337 return (EOPNOTSUPP);
338 /*
339 * Disallow write attempts if the filesystem is mounted read-only.
340 */
341 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
342 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
343 vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
344 return (EROFS);
345 if (vap->va_size != VNOVAL) {
346 switch (vp->v_type) {
347 case VDIR:
348 return (EISDIR);
349 case VREG:
350 /*
351 * Disallow write attempts if the filesystem is
352 * mounted read-only.
353 */
354 if (vp->v_mount->mnt_flag & MNT_RDONLY)
355 return (EROFS);
356 vnode_pager_setsize(vp, (u_long)vap->va_size);
357 tsize = np->n_size;
358 np->n_size = vap->va_size;
359 break;
360 default:
361 return EINVAL;
362 };
363 }
dadab5e9 364 error = ncp_setattr(vp, vap, ap->a_cred, ap->a_td);
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365 if (error && vap->va_size != VNOVAL) {
366 np->n_size = tsize;
367 vnode_pager_setsize(vp, (u_long)tsize);
368 }
369 np->n_atime = 0; /* invalidate cache */
3b568787 370 VOP_GETATTR(vp, vap, ap->a_td);
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371 np->n_mtime = vap->va_mtime.tv_sec;
372 return (0);
373}
374/*
375 * nwfs_read call.
376 */
377static int
378nwfs_read(ap)
379 struct vop_read_args /* {
380 struct vnode *a_vp;
381 struct uio *a_uio;
382 int a_ioflag;
383 struct ucred *a_cred;
384 } */ *ap;
385{
386 struct vnode *vp = ap->a_vp;
387 struct uio *uio=ap->a_uio;
388 int error;
389 NCPVNDEBUG("nwfs_read:\n");
390
391 if (vp->v_type != VREG && vp->v_type != VDIR)
392 return (EPERM);
393 error = nwfs_readvnode(vp, uio, ap->a_cred);
394 return error;
395}
396
397static int
398nwfs_write(ap)
399 struct vop_write_args /* {
400 struct vnode *a_vp;
401 struct uio *a_uio;
402 int a_ioflag;
403 struct ucred *a_cred;
404 } */ *ap;
405{
406 struct vnode *vp = ap->a_vp;
407 struct uio *uio = ap->a_uio;
408 int error;
409
410 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
411
412 if (vp->v_type != VREG)
413 return (EPERM);
414 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
415 return(error);
416}
417/*
418 * nwfs_create call
419 * Create a regular file. On entry the directory to contain the file being
420 * created is locked. We must release before we return. We must also free
421 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
422 * only if the SAVESTART bit in cn_flags is clear on success.
423 */
424static int
425nwfs_create(ap)
426 struct vop_create_args /* {
427 struct vnode *a_dvp;
428 struct vnode **a_vpp;
429 struct componentname *a_cnp;
430 struct vattr *a_vap;
431 } */ *ap;
432{
433 struct vnode *dvp = ap->a_dvp;
434 struct vattr *vap = ap->a_vap;
435 struct vnode **vpp=ap->a_vpp;
436 struct componentname *cnp = ap->a_cnp;
437 struct vnode *vp = (struct vnode *)0;
438 int error = 0, fmode;
439 struct vattr vattr;
440 struct nwnode *np;
441 struct ncp_open_info no;
442 struct nwmount *nmp=VTONWFS(dvp);
443 ncpfid fid;
444
445
446 NCPVNDEBUG("\n");
447 *vpp = NULL;
448 if (vap->va_type == VSOCK)
449 return (EOPNOTSUPP);
3b568787 450 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
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451 return (error);
452 }
453 fmode = AR_READ | AR_WRITE;
454/* if (vap->va_vaflags & VA_EXCLUSIVE)
455 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
456
457 error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr,
458 OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
dadab5e9 459 0, fmode, &no, cnp->cn_td, cnp->cn_cred);
984263bc 460 if (!error) {
dadab5e9 461 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
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462 fid.f_parent = VTONW(dvp)->n_fid.f_id;
463 fid.f_id = no.fattr.dirEntNum;
464 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
465 if (!error) {
466 np = VTONW(vp);
467 np->opened = 0;
468 *vpp = vp;
469 }
2b69e610 470 if (cnp->cn_flags & CNP_MAKEENTRY)
bc0c094e 471 cache_enter(dvp, NCPNULL, vp, cnp);
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472 }
473 return (error);
474}
475
476/*
477 * nwfs_remove call. It isn't possible to emulate UFS behaivour because
478 * NetWare doesn't allow delete/rename operations on an opened file.
479 */
480static int
481nwfs_remove(ap)
482 struct vop_remove_args /* {
483 struct vnodeop_desc *a_desc;
484 struct vnode * a_dvp;
485 struct vnode * a_vp;
486 struct componentname * a_cnp;
487 } */ *ap;
488{
489 struct vnode *vp = ap->a_vp;
490 struct vnode *dvp = ap->a_dvp;
491 struct componentname *cnp = ap->a_cnp;
492 struct nwnode *np = VTONW(vp);
493 struct nwmount *nmp = VTONWFS(vp);
494 int error;
495
496 if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) {
497 error = EPERM;
498 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
499 error = EIO;
500 } else {
501 cache_purge(vp);
502 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
dadab5e9 503 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
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504 if (error == 0)
505 np->n_flag |= NSHOULDFREE;
506 else if (error == 0x899c)
507 error = EACCES;
508 }
509 return (error);
510}
511
512/*
513 * nwfs_file rename call
514 */
515static int
516nwfs_rename(ap)
517 struct vop_rename_args /* {
518 struct vnode *a_fdvp;
519 struct vnode *a_fvp;
520 struct componentname *a_fcnp;
521 struct vnode *a_tdvp;
522 struct vnode *a_tvp;
523 struct componentname *a_tcnp;
524 } */ *ap;
525{
526 struct vnode *fvp = ap->a_fvp;
527 struct vnode *tvp = ap->a_tvp;
528 struct vnode *fdvp = ap->a_fdvp;
529 struct vnode *tdvp = ap->a_tdvp;
530 struct componentname *tcnp = ap->a_tcnp;
531 struct componentname *fcnp = ap->a_fcnp;
532 struct nwmount *nmp=VTONWFS(fvp);
533 u_int16_t oldtype = 6;
534 int error=0;
535
536 /* Check for cross-device rename */
537 if ((fvp->v_mount != tdvp->v_mount) ||
538 (tvp && (fvp->v_mount != tvp->v_mount))) {
539 error = EXDEV;
540 goto out;
541 }
542
543 if (tvp && tvp->v_usecount > 1) {
544 error = EBUSY;
545 goto out;
546 }
547 if (tvp && tvp != fvp) {
548 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
549 tcnp->cn_namelen, tcnp->cn_nameptr,
dadab5e9 550 tcnp->cn_td, tcnp->cn_cred);
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551 if (error == 0x899c) error = EACCES;
552 if (error)
553 goto out;
554 }
555 if (fvp->v_type == VDIR) {
556 oldtype |= NW_TYPE_SUBDIR;
557 } else if (fvp->v_type == VREG) {
558 oldtype |= NW_TYPE_FILE;
559 } else
560 return EINVAL;
561 error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
562 oldtype, &nmp->m.nls,
563 VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
564 VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
dadab5e9 565 tcnp->cn_td,tcnp->cn_cred);
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566
567 if (error == 0x8992)
568 error = EEXIST;
569 if (fvp->v_type == VDIR) {
570 if (tvp != NULL && tvp->v_type == VDIR)
571 cache_purge(tdvp);
572 cache_purge(fdvp);
573 }
574out:
575 if (tdvp == tvp)
576 vrele(tdvp);
577 else
578 vput(tdvp);
579 if (tvp)
580 vput(tvp);
581 vrele(fdvp);
582 vrele(fvp);
583 nwfs_attr_cacheremove(fdvp);
584 nwfs_attr_cacheremove(tdvp);
585 /*
586 * Need to get rid of old vnodes, because netware will change
587 * file id on rename
588 */
589 vgone(fvp);
590 if (tvp)
591 vgone(tvp);
592 /*
593 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
594 */
595 if (error == ENOENT)
596 error = 0;
597 return (error);
598}
599
600/*
601 * nwfs hard link create call
602 * Netware filesystems don't know what links are.
603 */
604static int
605nwfs_link(ap)
606 struct vop_link_args /* {
607 struct vnode *a_tdvp;
608 struct vnode *a_vp;
609 struct componentname *a_cnp;
610 } */ *ap;
611{
612 return EOPNOTSUPP;
613}
614
615/*
616 * nwfs_symlink link create call
617 * Netware filesystems don't know what symlinks are.
618 */
619static int
620nwfs_symlink(ap)
621 struct vop_symlink_args /* {
622 struct vnode *a_dvp;
623 struct vnode **a_vpp;
624 struct componentname *a_cnp;
625 struct vattr *a_vap;
626 char *a_target;
627 } */ *ap;
628{
629 return (EOPNOTSUPP);
630}
631
632static int nwfs_mknod(ap)
633 struct vop_mknod_args /* {
634 } */ *ap;
635{
636 return (EOPNOTSUPP);
637}
638
639/*
640 * nwfs_mkdir call
641 */
642static int
643nwfs_mkdir(ap)
644 struct vop_mkdir_args /* {
645 struct vnode *a_dvp;
646 struct vnode **a_vpp;
647 struct componentname *a_cnp;
648 struct vattr *a_vap;
649 } */ *ap;
650{
651 struct vnode *dvp = ap->a_dvp;
652/* struct vattr *vap = ap->a_vap;*/
653 struct componentname *cnp = ap->a_cnp;
654 int len=cnp->cn_namelen;
655 struct ncp_open_info no;
656 struct nwnode *np;
657 struct vnode *newvp = (struct vnode *)0;
658 ncpfid fid;
659 int error = 0;
660 struct vattr vattr;
661 char *name=cnp->cn_nameptr;
662
3b568787 663 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
984263bc
MD
664 return (error);
665 }
666 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
667 return EEXIST;
668 }
669 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
670 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
dadab5e9 671 &no, cnp->cn_td, cnp->cn_cred) != 0) {
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MD
672 error = EACCES;
673 } else {
674 error = 0;
675 }
676 if (!error) {
677 fid.f_parent = VTONW(dvp)->n_fid.f_id;
678 fid.f_id = no.fattr.dirEntNum;
679 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
680 if (!error) {
681 np = VTONW(newvp);
682 newvp->v_type = VDIR;
683 *ap->a_vpp = newvp;
684 }
685 }
686 return (error);
687}
688
689/*
690 * nwfs_remove directory call
691 */
692static int
693nwfs_rmdir(ap)
694 struct vop_rmdir_args /* {
695 struct vnode *a_dvp;
696 struct vnode *a_vp;
697 struct componentname *a_cnp;
698 } */ *ap;
699{
700 struct vnode *vp = ap->a_vp;
701 struct vnode *dvp = ap->a_dvp;
702 struct componentname *cnp = ap->a_cnp;
703 struct nwnode *np = VTONW(vp);
704 struct nwmount *nmp = VTONWFS(vp);
705 struct nwnode *dnp = VTONW(dvp);
706 int error = EIO;
707
708 if (dvp == vp)
709 return EINVAL;
710
711 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
dadab5e9 712 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
984263bc
MD
713 if (error == 0)
714 np->n_flag |= NSHOULDFREE;
715 else if (error == NWE_DIR_NOT_EMPTY)
716 error = ENOTEMPTY;
717 dnp->n_flag |= NMODIFIED;
718 nwfs_attr_cacheremove(dvp);
719 cache_purge(dvp);
720 cache_purge(vp);
721 return (error);
722}
723
724/*
725 * nwfs_readdir call
726 */
727static int
728nwfs_readdir(ap)
729 struct vop_readdir_args /* {
730 struct vnode *a_vp;
731 struct uio *a_uio;
732 struct ucred *a_cred;
733 int *a_eofflag;
734 u_long *a_cookies;
735 int a_ncookies;
736 } */ *ap;
737{
738 struct vnode *vp = ap->a_vp;
739 struct uio *uio = ap->a_uio;
740 int error;
741
742 if (vp->v_type != VDIR)
743 return (EPERM);
744 if (ap->a_ncookies) {
745 printf("nwfs_readdir: no support for cookies now...");
746 return (EOPNOTSUPP);
747 }
748
749 error = nwfs_readvnode(vp, uio, ap->a_cred);
750 return error;
751}
752/* ARGSUSED */
753static int
754nwfs_fsync(ap)
755 struct vop_fsync_args /* {
756 struct vnodeop_desc *a_desc;
757 struct vnode * a_vp;
758 struct ucred * a_cred;
759 int a_waitfor;
dadab5e9 760 struct thread *a_td;
984263bc
MD
761 } */ *ap;
762{
dadab5e9 763/* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
984263bc
MD
764 return (0);
765}
766
767/* ARGSUSED */
768static
769int nwfs_print (ap)
770 struct vop_print_args /* {
771 struct vnode *a_vp;
772 } */ *ap;
773{
774 struct vnode *vp = ap->a_vp;
775 struct nwnode *np = VTONW(vp);
776
777 printf("nwfs node: name = '%s', fid = %d, pfid = %d\n",
778 np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
779 return (0);
780}
781
782static int nwfs_pathconf (ap)
783 struct vop_pathconf_args /* {
784 struct vnode *vp;
785 int name;
786 register_t *retval;
787 } */ *ap;
788{
789 int name=ap->a_name, error=0;
790 register_t *retval=ap->a_retval;
791
792 switch(name){
793 case _PC_LINK_MAX:
794 *retval=0;
795 break;
796 case _PC_NAME_MAX:
797 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
798 break;
799 case _PC_PATH_MAX:
800 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
801 break;
802 default:
803 error=EINVAL;
804 }
805 return(error);
806}
807
808static int nwfs_strategy (ap)
809 struct vop_strategy_args /* {
810 struct buf *a_bp
811 } */ *ap;
812{
813 struct buf *bp=ap->a_bp;
984263bc 814 int error = 0;
dadab5e9 815 struct thread *td = NULL;
984263bc
MD
816
817 NCPVNDEBUG("\n");
818 if (bp->b_flags & B_PHYS)
819 panic("nwfs physio");
dadab5e9
MD
820 if ((bp->b_flags & B_ASYNC) == 0)
821 td = curthread; /* YYY dunno if this is legal */
984263bc
MD
822 /*
823 * If the op is asynchronous and an i/o daemon is waiting
824 * queue the request, wake it up and wait for completion
825 * otherwise just do it ourselves.
826 */
827 if ((bp->b_flags & B_ASYNC) == 0 )
3b568787 828 error = nwfs_doio(bp, proc0.p_ucred, td);
984263bc
MD
829 return (error);
830}
831
832static int
833nwfs_bmap(ap)
834 struct vop_bmap_args /* {
835 struct vnode *a_vp;
836 daddr_t a_bn;
837 struct vnode **a_vpp;
838 daddr_t *a_bnp;
839 int *a_runp;
840 int *a_runb;
841 } */ *ap;
842{
843 struct vnode *vp = ap->a_vp;
844
845 if (ap->a_vpp != NULL)
846 *ap->a_vpp = vp;
847 if (ap->a_bnp != NULL)
848 *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize);
849 if (ap->a_runp != NULL)
850 *ap->a_runp = 0;
851 if (ap->a_runb != NULL)
852 *ap->a_runb = 0;
853 return (0);
854}
855
856int
857nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
858 struct vnode *dvp, struct vnode **vpp)
859{
860 int error;
861 struct nwnode *newnp;
862 struct vnode *vp;
863
864 *vpp = NULL;
865 error = nwfs_allocvp(mp, fid, &vp);
866 if (error)
867 return error;
868 newnp = VTONW(vp);
869 if (fap) {
870 newnp->n_attr = fap->attributes;
871 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
872 nwfs_attr_cacheenter(vp, fap);
873 }
874 if (dvp) {
875 newnp->n_parent = VTONW(dvp)->n_fid;
876 if ((newnp->n_flag & NNEW) && vp->v_type == VDIR) {
877 if ((dvp->v_flag & VROOT) == 0) {
878 newnp->n_refparent = 1;
879 vref(dvp); /* vhold */
880 }
881 }
882 } else {
883 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
884 printf("new vnode '%s' borned without parent ?\n",newnp->n_name);
885 }
886 newnp->n_flag &= ~NNEW;
887 *vpp = vp;
888 return 0;
889}
890
891/*
892 * How to keep the brain busy ...
893 * Currently lookup routine can make two lookup for vnode. This can be
894 * avoided by reorg the code.
895 */
896int
897nwfs_lookup(ap)
898 struct vop_lookup_args /* {
899 struct vnodeop_desc *a_desc;
900 struct vnode *a_dvp;
901 struct vnode **a_vpp;
902 struct componentname *a_cnp;
903 } */ *ap;
904{
905 struct componentname *cnp = ap->a_cnp;
906 struct vnode *dvp = ap->a_dvp;
907 struct vnode **vpp = ap->a_vpp;
908 int flags = cnp->cn_flags;
909 struct vnode *vp;
910 struct nwmount *nmp;
911 struct mount *mp = dvp->v_mount;
912 struct nwnode *dnp, *npp;
913 struct nw_entry_info fattr, *fap;
914 ncpfid fid;
915 int nameiop=cnp->cn_nameiop, islastcn;
916 int lockparent, wantparent, error = 0, notfound;
dadab5e9 917 struct thread *td = cnp->cn_td;
984263bc
MD
918 char _name[cnp->cn_namelen+1];
919 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
920 _name[cnp->cn_namelen]=0;
921
922 if (dvp->v_type != VDIR)
923 return (ENOTDIR);
2b69e610 924 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
984263bc
MD
925 printf("nwfs_lookup: invalid '..'\n");
926 return EIO;
927 }
928
929 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
930 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
931
2b69e610
MD
932 islastcn = flags & CNP_ISLASTCN;
933 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != NAMEI_LOOKUP))
984263bc 934 return (EROFS);
dadab5e9 935 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)))
984263bc 936 return (error);
2b69e610
MD
937 lockparent = flags & CNP_LOCKPARENT;
938 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
984263bc
MD
939 nmp = VFSTONWFS(mp);
940 dnp = VTONW(dvp);
941/*
2b69e610 942printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & CNP_ISDOTDOT);
984263bc
MD
943*/
944 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
2b69e610 945 (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
984263bc
MD
946 if (error)
947 return ENOENT;
948
bc0c094e 949 error = cache_lookup(dvp, NCPNULL, vpp, NCPPNULL, cnp);
984263bc
MD
950 NCPVNDEBUG("cache_lookup returned %d\n",error);
951 if (error > 0)
952 return error;
953 if (error) { /* name was found */
954 struct vattr vattr;
955 int vpid;
956
957 vp = *vpp;
958 vpid = vp->v_id;
959 if (dvp == vp) { /* lookup on current */
960 vref(vp);
961 error = 0;
962 NCPVNDEBUG("cached '.'");
2b69e610 963 } else if (flags & CNP_ISDOTDOT) {
41a01a4d
MD
964 VOP_UNLOCK(dvp, NULL, 0, td); /* unlock parent */
965 error = vget(vp, NULL, LK_EXCLUSIVE, td);
984263bc 966 if (!error && lockparent && islastcn)
41a01a4d 967 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
984263bc 968 } else {
41a01a4d 969 error = vget(vp, NULL, LK_EXCLUSIVE, td);
984263bc 970 if (!lockparent || error || !islastcn)
41a01a4d 971 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
972 }
973 if (!error) {
974 if (vpid == vp->v_id) {
3b568787 975 if (!VOP_GETATTR(vp, &vattr, td)
984263bc 976 && vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) {
2b69e610
MD
977 if (nameiop != NAMEI_LOOKUP && islastcn)
978 cnp->cn_flags |= CNP_SAVENAME;
984263bc
MD
979 NCPVNDEBUG("use cached vnode");
980 return (0);
981 }
982 cache_purge(vp);
983 }
984 vput(vp);
985 if (lockparent && dvp != vp && islastcn)
41a01a4d 986 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc 987 }
41a01a4d 988 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
984263bc
MD
989 *vpp = NULLVP;
990 if (error)
991 return (error);
992 }
993 /* not in cache, so ... */
994 error = 0;
995 *vpp = NULLVP;
996 fap = NULL;
2b69e610 997 if (flags & CNP_ISDOTDOT) {
984263bc
MD
998 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
999 fid = nmp->n_rootent;
1000 fap = NULL;
1001 notfound = 0;
1002 } else {
dadab5e9 1003 error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
984263bc
MD
1004 if (error) {
1005 return error;
1006 }
1007 fid = dnp->n_parent;
1008 fap = &fattr;
1009 /*np = *npp;*/
1010 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
dadab5e9 1011 0, NULL, fap, td, cnp->cn_cred);
984263bc
MD
1012 }
1013 } else {
1014 fap = &fattr;
1015 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
dadab5e9 1016 fap, td, cnp->cn_cred);
984263bc
MD
1017 fid.f_id = fap->dirEntNum;
1018 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
1019 fid.f_parent = dnp->n_fid.f_parent;
1020 } else
1021 fid.f_parent = dnp->n_fid.f_id;
1022 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
1023 }
1024 if (notfound && notfound < 0x80 )
1025 return (notfound); /* hard error */
1026 if (notfound) { /* entry not found */
1027 /* Handle RENAME or CREATE case... */
2b69e610
MD
1028 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent && islastcn) {
1029 cnp->cn_flags |= CNP_SAVENAME;
984263bc 1030 if (!lockparent)
41a01a4d 1031 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
1032 return (EJUSTRETURN);
1033 }
1034 return ENOENT;
1035 }/* else {
1036 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
1037 }*/
1038 /* handle DELETE case ... */
2b69e610 1039 if (nameiop == NAMEI_DELETE && islastcn) { /* delete last component */
dadab5e9 1040 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
984263bc
MD
1041 if (error) return (error);
1042 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
1043 VREF(dvp);
1044 *vpp = dvp;
1045 return 0;
1046 }
1047 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1048 if (error) return (error);
1049 *vpp = vp;
2b69e610 1050 cnp->cn_flags |= CNP_SAVENAME; /* I free it later */
41a01a4d 1051 if (!lockparent) VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
1052 return (0);
1053 }
2b69e610 1054 if (nameiop == NAMEI_RENAME && islastcn && wantparent) {
dadab5e9 1055 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
984263bc
MD
1056 if (error) return (error);
1057 if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
1058 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1059 if (error) return (error);
1060 *vpp = vp;
2b69e610 1061 cnp->cn_flags |= CNP_SAVENAME;
984263bc 1062 if (!lockparent)
41a01a4d 1063 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
1064 return (0);
1065 }
2b69e610 1066 if (flags & CNP_ISDOTDOT) {
41a01a4d 1067 VOP_UNLOCK(dvp, NULL, 0, td); /* race to get the inode */
984263bc
MD
1068 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
1069 if (error) {
41a01a4d 1070 vn_lock(dvp, NULL, LK_EXCLUSIVE | LK_RETRY, td);
984263bc
MD
1071 return (error);
1072 }
1073 if (lockparent && islastcn &&
41a01a4d 1074 (error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td))) {
984263bc
MD
1075 vput(vp);
1076 return (error);
1077 }
1078 *vpp = vp;
1079 } else if (NWCMPF(&dnp->n_fid, &fid)) {
1080 vref(dvp);
1081 *vpp = dvp;
1082 } else {
1083 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1084 if (error) return (error);
1085 *vpp = vp;
1086 NCPVNDEBUG("lookup: getnewvp!\n");
1087 if (!lockparent || !islastcn)
41a01a4d 1088 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc 1089 }
2b69e610 1090 if ((cnp->cn_flags & CNP_MAKEENTRY)/* && !islastcn*/) {
984263bc 1091 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
bc0c094e 1092 cache_enter(dvp, NCPNULL, *vpp, cnp);
984263bc
MD
1093 }
1094 return (0);
1095}