Make a DFly buildworld work on a FreeBSD-4.x system again by fixing
[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 $
67773eb3 33 * $DragonFly: src/sys/vfs/nwfs/nwfs_vnops.c,v 1.17 2004/10/07 10:03:04 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 */
0961aa92 87struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
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88 { &vop_default_desc, vop_defaultop },
89 { &vop_access_desc, (void *) nwfs_access },
90 { &vop_bmap_desc, (void *) nwfs_bmap },
91 { &vop_open_desc, (void *) nwfs_open },
92 { &vop_close_desc, (void *) nwfs_close },
93 { &vop_create_desc, (void *) nwfs_create },
94 { &vop_fsync_desc, (void *) nwfs_fsync },
95 { &vop_getattr_desc, (void *) nwfs_getattr },
96 { &vop_getpages_desc, (void *) nwfs_getpages },
97 { &vop_putpages_desc, (void *) nwfs_putpages },
98 { &vop_ioctl_desc, (void *) nwfs_ioctl },
99 { &vop_inactive_desc, (void *) nwfs_inactive },
100 { &vop_islocked_desc, (void *) vop_stdislocked },
101 { &vop_link_desc, (void *) nwfs_link },
102 { &vop_lock_desc, (void *) vop_stdlock },
103 { &vop_lookup_desc, (void *) nwfs_lookup },
104 { &vop_mkdir_desc, (void *) nwfs_mkdir },
105 { &vop_mknod_desc, (void *) nwfs_mknod },
106 { &vop_pathconf_desc, (void *) nwfs_pathconf },
107 { &vop_print_desc, (void *) nwfs_print },
108 { &vop_read_desc, (void *) nwfs_read },
109 { &vop_readdir_desc, (void *) nwfs_readdir },
110 { &vop_reclaim_desc, (void *) nwfs_reclaim },
111 { &vop_remove_desc, (void *) nwfs_remove },
112 { &vop_rename_desc, (void *) nwfs_rename },
113 { &vop_rmdir_desc, (void *) nwfs_rmdir },
114 { &vop_setattr_desc, (void *) nwfs_setattr },
115 { &vop_strategy_desc, (void *) nwfs_strategy },
116 { &vop_symlink_desc, (void *) nwfs_symlink },
117 { &vop_unlock_desc, (void *) vop_stdunlock },
118 { &vop_write_desc, (void *) nwfs_write },
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119 { NULL, NULL }
120};
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121
122/*
123 * nwfs_access vnode op
124 * for now just return ok
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125 *
126 * nwfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
127 * struct thread *a_td)
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128 */
129static int
a9bb80e0 130nwfs_access(struct vop_access_args *ap)
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131{
132 struct vnode *vp = ap->a_vp;
133 struct ucred *cred = ap->a_cred;
134 u_int mode = ap->a_mode;
135 struct nwmount *nmp = VTONWFS(vp);
136 int error = 0;
137
138 NCPVNDEBUG("\n");
139 if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
140 switch (vp->v_type) {
141 case VREG: case VDIR: case VLNK:
142 return (EROFS);
143 default:
144 break;
145 }
146 }
147 if (cred->cr_uid == 0)
148 return 0;
149 if (cred->cr_uid != nmp->m.uid) {
150 mode >>= 3;
151 if (!groupmember(nmp->m.gid, cred))
152 mode >>= 3;
153 }
154 error = (((vp->v_type == VREG) ? nmp->m.file_mode : nmp->m.dir_mode) & mode) == mode ? 0 : EACCES;
155 return error;
156}
157/*
158 * nwfs_open vnode op
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159 *
160 * nwfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
161 * struct thread *a_td)
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162 */
163/* ARGSUSED */
164static int
a9bb80e0 165nwfs_open(struct vop_open_args *ap)
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166{
167 struct vnode *vp = ap->a_vp;
168 int mode = ap->a_mode;
169 struct nwnode *np = VTONW(vp);
170 struct ncp_open_info no;
171 struct nwmount *nmp = VTONWFS(vp);
172 struct vattr vattr;
173 int error, nwm;
174
175 NCPVNDEBUG("%s,%d\n",np->n_name, np->opened);
176 if (vp->v_type != VREG && vp->v_type != VDIR) {
177 NCPFATAL("open vtype = %d\n", vp->v_type);
178 return (EACCES);
179 }
180 if (vp->v_type == VDIR) return 0; /* nothing to do now */
181 if (np->n_flag & NMODIFIED) {
3b568787 182 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
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183 return (error);
184 np->n_atime = 0;
3b568787 185 error = VOP_GETATTR(vp, &vattr, ap->a_td);
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186 if (error) return (error);
187 np->n_mtime = vattr.va_mtime.tv_sec;
188 } else {
3b568787 189 error = VOP_GETATTR(vp, &vattr, ap->a_td);
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190 if (error) return (error);
191 if (np->n_mtime != vattr.va_mtime.tv_sec) {
3b568787 192 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
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193 return (error);
194 np->n_mtime = vattr.va_mtime.tv_sec;
195 }
196 }
197 if (np->opened) {
198 np->opened++;
199 return 0;
200 }
201 nwm = AR_READ;
202 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
203 nwm |= AR_WRITE;
204 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
dadab5e9 205 0, nwm, &no, ap->a_td, ap->a_cred);
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206 if (error) {
207 if (mode & FWRITE)
208 return EACCES;
209 nwm = AR_READ;
210 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
dadab5e9 211 nwm, &no, ap->a_td,ap->a_cred);
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212 }
213 if (!error) {
214 np->opened++;
215 np->n_fh = no.fh;
216 np->n_origfh = no.origfh;
217 }
218 np->n_atime = 0;
219 return (error);
220}
221
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222/*
223 * nwfs_close(struct vnodeop_desc *a_desc, struct vnode *a_vp, int a_fflag,
224 * struct ucred *a_cred, struct thread *a_td)
225 */
984263bc 226static int
a9bb80e0 227nwfs_close(struct vop_close_args *ap)
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228{
229 struct vnode *vp = ap->a_vp;
230 struct nwnode *np = VTONW(vp);
41a01a4d 231 lwkt_tokref vlock;
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232 int error;
233
dadab5e9 234 NCPVNDEBUG("name=%s,td=%p,c=%d\n",np->n_name,ap->a_td,np->opened);
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235
236 if (vp->v_type == VDIR) return 0; /* nothing to do now */
237 error = 0;
41a01a4d 238 lwkt_gettoken(&vlock, vp->v_interlock);
984263bc 239 if (np->opened == 0) {
41a01a4d 240 lwkt_reltoken(&vlock);
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241 return 0;
242 }
41a01a4d 243 lwkt_reltoken(&vlock);
3b568787 244 error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
41a01a4d 245 lwkt_gettokref(&vlock);
984263bc 246 if (np->opened == 0) {
41a01a4d 247 lwkt_reltoken(&vlock);
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248 return 0;
249 }
250 if (--np->opened == 0) {
41a01a4d 251 lwkt_reltoken(&vlock);
984263bc 252 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
3b568787 253 ap->a_td, proc0.p_ucred);
8a8d5d85 254 } else {
41a01a4d 255 lwkt_reltoken(&vlock);
8a8d5d85 256 }
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257 np->n_atime = 0;
258 return (error);
259}
260
261/*
262 * nwfs_getattr call from vfs.
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263 *
264 * nwfs_getattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
265 * struct thread *a_td)
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266 */
267static int
a9bb80e0 268nwfs_getattr(struct vop_getattr_args *ap)
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269{
270 struct vnode *vp = ap->a_vp;
271 struct nwnode *np = VTONW(vp);
272 struct vattr *va=ap->a_vap;
273 struct nwmount *nmp = VTONWFS(vp);
274 struct nw_entry_info fattr;
275 int error;
276 u_int32_t oldsize;
277
278 NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
279 error = nwfs_attr_cachelookup(vp,va);
280 if (!error) return 0;
281 NCPVNDEBUG("not in cache\n");
282 oldsize = np->n_size;
283 if (np->n_flag & NVOLUME) {
284 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
3b568787 285 ap->a_td,proc0.p_ucred);
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286 } else {
287 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
3b568787 288 np->n_name, &fattr, ap->a_td, proc0.p_ucred);
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289 }
290 if (error) {
291 NCPVNDEBUG("error %d\n", error);
292 return error;
293 }
294 nwfs_attr_cacheenter(vp, &fattr);
295 *va = np->n_vattr;
296 if (np->opened)
297 np->n_size = oldsize;
298 return (0);
299}
300/*
301 * nwfs_setattr call from vfs.
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302 *
303 * nwfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
304 * struct thread *a_td)
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305 */
306static int
a9bb80e0 307nwfs_setattr(struct vop_setattr_args *ap)
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308{
309 struct vnode *vp = ap->a_vp;
310 struct nwnode *np = VTONW(vp);
311 struct vattr *vap = ap->a_vap;
312 u_quad_t tsize=0;
313 int error = 0;
314
315 NCPVNDEBUG("\n");
316 if (vap->va_flags != VNOVAL)
317 return (EOPNOTSUPP);
318 /*
319 * Disallow write attempts if the filesystem is mounted read-only.
320 */
321 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
322 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
323 vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
324 return (EROFS);
325 if (vap->va_size != VNOVAL) {
326 switch (vp->v_type) {
327 case VDIR:
328 return (EISDIR);
329 case VREG:
330 /*
331 * Disallow write attempts if the filesystem is
332 * mounted read-only.
333 */
334 if (vp->v_mount->mnt_flag & MNT_RDONLY)
335 return (EROFS);
336 vnode_pager_setsize(vp, (u_long)vap->va_size);
337 tsize = np->n_size;
338 np->n_size = vap->va_size;
339 break;
340 default:
341 return EINVAL;
342 };
343 }
dadab5e9 344 error = ncp_setattr(vp, vap, ap->a_cred, ap->a_td);
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345 if (error && vap->va_size != VNOVAL) {
346 np->n_size = tsize;
347 vnode_pager_setsize(vp, (u_long)tsize);
348 }
349 np->n_atime = 0; /* invalidate cache */
3b568787 350 VOP_GETATTR(vp, vap, ap->a_td);
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351 np->n_mtime = vap->va_mtime.tv_sec;
352 return (0);
353}
a9bb80e0 354
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355/*
356 * nwfs_read call.
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357 *
358 * nwfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
359 * struct ucred *a_cred)
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360 */
361static int
a9bb80e0 362nwfs_read(struct vop_read_args *ap)
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363{
364 struct vnode *vp = ap->a_vp;
365 struct uio *uio=ap->a_uio;
366 int error;
367 NCPVNDEBUG("nwfs_read:\n");
368
369 if (vp->v_type != VREG && vp->v_type != VDIR)
370 return (EPERM);
371 error = nwfs_readvnode(vp, uio, ap->a_cred);
372 return error;
373}
374
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375/*
376 * nwfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
377 * struct ucred *a_cred)
378 */
984263bc 379static int
a9bb80e0 380nwfs_write(struct vop_write_args *ap)
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381{
382 struct vnode *vp = ap->a_vp;
383 struct uio *uio = ap->a_uio;
384 int error;
385
386 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
387
388 if (vp->v_type != VREG)
389 return (EPERM);
390 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
391 return(error);
392}
393/*
394 * nwfs_create call
395 * Create a regular file. On entry the directory to contain the file being
396 * created is locked. We must release before we return. We must also free
397 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
398 * only if the SAVESTART bit in cn_flags is clear on success.
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399 *
400 * nwfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
401 * struct componentname *a_cnpl, struct vattr *a_vap)
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402 */
403static int
a9bb80e0 404nwfs_create(struct vop_create_args *ap)
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405{
406 struct vnode *dvp = ap->a_dvp;
407 struct vattr *vap = ap->a_vap;
408 struct vnode **vpp=ap->a_vpp;
409 struct componentname *cnp = ap->a_cnp;
410 struct vnode *vp = (struct vnode *)0;
411 int error = 0, fmode;
412 struct vattr vattr;
413 struct nwnode *np;
414 struct ncp_open_info no;
415 struct nwmount *nmp=VTONWFS(dvp);
416 ncpfid fid;
417
418
419 NCPVNDEBUG("\n");
420 *vpp = NULL;
421 if (vap->va_type == VSOCK)
422 return (EOPNOTSUPP);
3b568787 423 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
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424 return (error);
425 }
426 fmode = AR_READ | AR_WRITE;
427/* if (vap->va_vaflags & VA_EXCLUSIVE)
428 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
429
430 error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr,
431 OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
dadab5e9 432 0, fmode, &no, cnp->cn_td, cnp->cn_cred);
984263bc 433 if (!error) {
dadab5e9 434 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
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435 fid.f_parent = VTONW(dvp)->n_fid.f_id;
436 fid.f_id = no.fattr.dirEntNum;
437 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
438 if (!error) {
439 np = VTONW(vp);
440 np->opened = 0;
441 *vpp = vp;
442 }
2b69e610 443 if (cnp->cn_flags & CNP_MAKEENTRY)
21739618 444 cache_enter(dvp, vp, cnp);
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445 }
446 return (error);
447}
448
449/*
450 * nwfs_remove call. It isn't possible to emulate UFS behaivour because
451 * NetWare doesn't allow delete/rename operations on an opened file.
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452 *
453 * nwfs_remove(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
454 * struct vnode *a_vp, struct componentname *a_cnp)
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455 */
456static int
a9bb80e0 457nwfs_remove(struct vop_remove_args *ap)
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458{
459 struct vnode *vp = ap->a_vp;
460 struct vnode *dvp = ap->a_dvp;
461 struct componentname *cnp = ap->a_cnp;
462 struct nwnode *np = VTONW(vp);
463 struct nwmount *nmp = VTONWFS(vp);
464 int error;
465
466 if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) {
467 error = EPERM;
468 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
469 error = EIO;
470 } else {
471 cache_purge(vp);
472 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
dadab5e9 473 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
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474 if (error == 0)
475 np->n_flag |= NSHOULDFREE;
476 else if (error == 0x899c)
477 error = EACCES;
478 }
479 return (error);
480}
481
482/*
483 * nwfs_file rename call
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484 *
485 * nwfs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
486 * struct componentname *a_fcnp, struct vnode *a_tdvp,
487 * struct vnode *a_tvp, struct componentname *a_tcnp)
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488 */
489static int
a9bb80e0 490nwfs_rename(struct vop_rename_args *ap)
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491{
492 struct vnode *fvp = ap->a_fvp;
493 struct vnode *tvp = ap->a_tvp;
494 struct vnode *fdvp = ap->a_fdvp;
495 struct vnode *tdvp = ap->a_tdvp;
496 struct componentname *tcnp = ap->a_tcnp;
497 struct componentname *fcnp = ap->a_fcnp;
498 struct nwmount *nmp=VTONWFS(fvp);
499 u_int16_t oldtype = 6;
500 int error=0;
501
502 /* Check for cross-device rename */
503 if ((fvp->v_mount != tdvp->v_mount) ||
504 (tvp && (fvp->v_mount != tvp->v_mount))) {
505 error = EXDEV;
506 goto out;
507 }
508
509 if (tvp && tvp->v_usecount > 1) {
510 error = EBUSY;
511 goto out;
512 }
513 if (tvp && tvp != fvp) {
514 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
515 tcnp->cn_namelen, tcnp->cn_nameptr,
dadab5e9 516 tcnp->cn_td, tcnp->cn_cred);
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517 if (error == 0x899c) error = EACCES;
518 if (error)
519 goto out;
520 }
521 if (fvp->v_type == VDIR) {
522 oldtype |= NW_TYPE_SUBDIR;
523 } else if (fvp->v_type == VREG) {
524 oldtype |= NW_TYPE_FILE;
525 } else
526 return EINVAL;
527 error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
528 oldtype, &nmp->m.nls,
529 VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
530 VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
dadab5e9 531 tcnp->cn_td,tcnp->cn_cred);
984263bc
MD
532
533 if (error == 0x8992)
534 error = EEXIST;
535 if (fvp->v_type == VDIR) {
536 if (tvp != NULL && tvp->v_type == VDIR)
537 cache_purge(tdvp);
538 cache_purge(fdvp);
539 }
540out:
541 if (tdvp == tvp)
542 vrele(tdvp);
543 else
544 vput(tdvp);
545 if (tvp)
546 vput(tvp);
547 vrele(fdvp);
548 vrele(fvp);
549 nwfs_attr_cacheremove(fdvp);
550 nwfs_attr_cacheremove(tdvp);
551 /*
552 * Need to get rid of old vnodes, because netware will change
553 * file id on rename
554 */
555 vgone(fvp);
556 if (tvp)
557 vgone(tvp);
558 /*
559 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
560 */
561 if (error == ENOENT)
562 error = 0;
563 return (error);
564}
565
566/*
567 * nwfs hard link create call
568 * Netware filesystems don't know what links are.
a9bb80e0
CP
569 *
570 * nwfs_link(struct vnode *a_tdvp, struct vnode *a_vp,
571 * struct componentname *a_cnp)
984263bc
MD
572 */
573static int
a9bb80e0 574nwfs_link(struct vop_link_args *ap)
984263bc
MD
575{
576 return EOPNOTSUPP;
577}
578
579/*
580 * nwfs_symlink link create call
581 * Netware filesystems don't know what symlinks are.
a9bb80e0
CP
582 *
583 * nwfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
584 * struct componentname *a_cnp, struct vattr *a_vap,
585 * char *a_target)
984263bc
MD
586 */
587static int
a9bb80e0 588nwfs_symlink(struct vop_symlink_args *ap)
984263bc
MD
589{
590 return (EOPNOTSUPP);
591}
592
a9bb80e0 593static int nwfs_mknod(struct vop_mknod_args *ap)
984263bc
MD
594{
595 return (EOPNOTSUPP);
596}
597
598/*
599 * nwfs_mkdir call
a9bb80e0
CP
600 *
601 * nwfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
602 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc
MD
603 */
604static int
a9bb80e0 605nwfs_mkdir(struct vop_mkdir_args *ap)
984263bc
MD
606{
607 struct vnode *dvp = ap->a_dvp;
608/* struct vattr *vap = ap->a_vap;*/
609 struct componentname *cnp = ap->a_cnp;
610 int len=cnp->cn_namelen;
611 struct ncp_open_info no;
612 struct nwnode *np;
613 struct vnode *newvp = (struct vnode *)0;
614 ncpfid fid;
615 int error = 0;
616 struct vattr vattr;
617 char *name=cnp->cn_nameptr;
618
3b568787 619 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
984263bc
MD
620 return (error);
621 }
622 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
623 return EEXIST;
624 }
625 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
626 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
dadab5e9 627 &no, cnp->cn_td, cnp->cn_cred) != 0) {
984263bc
MD
628 error = EACCES;
629 } else {
630 error = 0;
631 }
632 if (!error) {
633 fid.f_parent = VTONW(dvp)->n_fid.f_id;
634 fid.f_id = no.fattr.dirEntNum;
635 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
636 if (!error) {
637 np = VTONW(newvp);
638 newvp->v_type = VDIR;
639 *ap->a_vpp = newvp;
640 }
641 }
642 return (error);
643}
644
645/*
646 * nwfs_remove directory call
a9bb80e0
CP
647 *
648 * nwfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
649 * struct componentname *a_cnp)
984263bc
MD
650 */
651static int
a9bb80e0 652nwfs_rmdir(struct vop_rmdir_args *ap)
984263bc
MD
653{
654 struct vnode *vp = ap->a_vp;
655 struct vnode *dvp = ap->a_dvp;
656 struct componentname *cnp = ap->a_cnp;
657 struct nwnode *np = VTONW(vp);
658 struct nwmount *nmp = VTONWFS(vp);
659 struct nwnode *dnp = VTONW(dvp);
660 int error = EIO;
661
662 if (dvp == vp)
663 return EINVAL;
664
665 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
dadab5e9 666 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
984263bc
MD
667 if (error == 0)
668 np->n_flag |= NSHOULDFREE;
669 else if (error == NWE_DIR_NOT_EMPTY)
670 error = ENOTEMPTY;
671 dnp->n_flag |= NMODIFIED;
672 nwfs_attr_cacheremove(dvp);
673 cache_purge(dvp);
674 cache_purge(vp);
675 return (error);
676}
677
678/*
679 * nwfs_readdir call
a9bb80e0
CP
680 *
681 * nwfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
682 * int *a_eofflag, u_long *a_cookies, int a_ncookies)
984263bc
MD
683 */
684static int
a9bb80e0 685nwfs_readdir(struct vop_readdir_args *ap)
984263bc
MD
686{
687 struct vnode *vp = ap->a_vp;
688 struct uio *uio = ap->a_uio;
689 int error;
690
691 if (vp->v_type != VDIR)
692 return (EPERM);
693 if (ap->a_ncookies) {
694 printf("nwfs_readdir: no support for cookies now...");
695 return (EOPNOTSUPP);
696 }
697
698 error = nwfs_readvnode(vp, uio, ap->a_cred);
699 return error;
700}
a9bb80e0
CP
701
702/*
703 * nwfs_fsync(struct vnodeop_desc *a_desc, struct vnode *a_vp,
704 * struct ucred *a_cred, int a_waitfor, struct thread *a_td)
705 */
984263bc
MD
706/* ARGSUSED */
707static int
a9bb80e0 708nwfs_fsync(struct vop_fsync_args *ap)
984263bc 709{
dadab5e9 710/* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
984263bc
MD
711 return (0);
712}
713
a9bb80e0
CP
714/*
715 * nwfs_print(struct vnode *a_vp)
716 */
984263bc 717/* ARGSUSED */
a9bb80e0
CP
718static int
719nwfs_print(struct vop_print_args *ap)
984263bc
MD
720{
721 struct vnode *vp = ap->a_vp;
722 struct nwnode *np = VTONW(vp);
723
724 printf("nwfs node: name = '%s', fid = %d, pfid = %d\n",
725 np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
726 return (0);
727}
728
a9bb80e0
CP
729/*
730 * nwfs_pathconf(struct vnode *vp, int name, register_t *retval)
731 */
732static int
733nwfs_pathconf(struct vop_pathconf_args *ap)
984263bc
MD
734{
735 int name=ap->a_name, error=0;
736 register_t *retval=ap->a_retval;
737
738 switch(name){
739 case _PC_LINK_MAX:
740 *retval=0;
741 break;
742 case _PC_NAME_MAX:
743 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
744 break;
745 case _PC_PATH_MAX:
746 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
747 break;
748 default:
749 error=EINVAL;
750 }
751 return(error);
752}
753
a9bb80e0
CP
754/*
755 * nwfs_strategy(struct buf *a_bp)
756 */
757static int
758nwfs_strategy(struct vop_strategy_args *ap)
984263bc
MD
759{
760 struct buf *bp=ap->a_bp;
984263bc 761 int error = 0;
dadab5e9 762 struct thread *td = NULL;
984263bc
MD
763
764 NCPVNDEBUG("\n");
765 if (bp->b_flags & B_PHYS)
766 panic("nwfs physio");
dadab5e9
MD
767 if ((bp->b_flags & B_ASYNC) == 0)
768 td = curthread; /* YYY dunno if this is legal */
984263bc
MD
769 /*
770 * If the op is asynchronous and an i/o daemon is waiting
771 * queue the request, wake it up and wait for completion
772 * otherwise just do it ourselves.
773 */
774 if ((bp->b_flags & B_ASYNC) == 0 )
3b568787 775 error = nwfs_doio(bp, proc0.p_ucred, td);
984263bc
MD
776 return (error);
777}
778
a9bb80e0
CP
779/*
780 * nwfs_bmap(struct vnode *a_vp, daddr_t a_bn, struct vnode **a_vpp,
781 * daddr_t *a_bnp, int *a_runp, int *a_runb)
782 */
984263bc 783static int
a9bb80e0 784nwfs_bmap(struct vop_bmap_args *ap)
984263bc
MD
785{
786 struct vnode *vp = ap->a_vp;
787
788 if (ap->a_vpp != NULL)
789 *ap->a_vpp = vp;
790 if (ap->a_bnp != NULL)
791 *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize);
792 if (ap->a_runp != NULL)
793 *ap->a_runp = 0;
794 if (ap->a_runb != NULL)
795 *ap->a_runb = 0;
796 return (0);
797}
798
799int
800nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
801 struct vnode *dvp, struct vnode **vpp)
802{
803 int error;
804 struct nwnode *newnp;
805 struct vnode *vp;
806
807 *vpp = NULL;
808 error = nwfs_allocvp(mp, fid, &vp);
809 if (error)
810 return error;
811 newnp = VTONW(vp);
812 if (fap) {
813 newnp->n_attr = fap->attributes;
814 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
815 nwfs_attr_cacheenter(vp, fap);
816 }
817 if (dvp) {
818 newnp->n_parent = VTONW(dvp)->n_fid;
819 if ((newnp->n_flag & NNEW) && vp->v_type == VDIR) {
820 if ((dvp->v_flag & VROOT) == 0) {
821 newnp->n_refparent = 1;
822 vref(dvp); /* vhold */
823 }
824 }
825 } else {
826 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
827 printf("new vnode '%s' borned without parent ?\n",newnp->n_name);
828 }
829 newnp->n_flag &= ~NNEW;
830 *vpp = vp;
831 return 0;
832}
833
834/*
835 * How to keep the brain busy ...
836 * Currently lookup routine can make two lookup for vnode. This can be
837 * avoided by reorg the code.
a9bb80e0
CP
838 *
839 * nwfs_lookup(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
840 * struct vnode **a_vpp, struct componentname *a_cnp)
984263bc
MD
841 */
842int
a9bb80e0 843nwfs_lookup(struct vop_lookup_args *ap)
984263bc
MD
844{
845 struct componentname *cnp = ap->a_cnp;
846 struct vnode *dvp = ap->a_dvp;
847 struct vnode **vpp = ap->a_vpp;
848 int flags = cnp->cn_flags;
849 struct vnode *vp;
850 struct nwmount *nmp;
851 struct mount *mp = dvp->v_mount;
852 struct nwnode *dnp, *npp;
853 struct nw_entry_info fattr, *fap;
854 ncpfid fid;
855 int nameiop=cnp->cn_nameiop, islastcn;
856 int lockparent, wantparent, error = 0, notfound;
dadab5e9 857 struct thread *td = cnp->cn_td;
984263bc
MD
858 char _name[cnp->cn_namelen+1];
859 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
860 _name[cnp->cn_namelen]=0;
861
862 if (dvp->v_type != VDIR)
863 return (ENOTDIR);
2b69e610 864 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
984263bc
MD
865 printf("nwfs_lookup: invalid '..'\n");
866 return EIO;
867 }
868
869 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
870 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
871
2b69e610
MD
872 islastcn = flags & CNP_ISLASTCN;
873 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != NAMEI_LOOKUP))
984263bc 874 return (EROFS);
dadab5e9 875 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)))
984263bc 876 return (error);
2b69e610
MD
877 lockparent = flags & CNP_LOCKPARENT;
878 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
984263bc
MD
879 nmp = VFSTONWFS(mp);
880 dnp = VTONW(dvp);
881/*
2b69e610 882printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & CNP_ISDOTDOT);
984263bc
MD
883*/
884 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
2b69e610 885 (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
984263bc
MD
886 if (error)
887 return ENOENT;
888
14c92d03 889 error = cache_lookup(dvp, vpp, cnp);
984263bc
MD
890 NCPVNDEBUG("cache_lookup returned %d\n",error);
891 if (error > 0)
892 return error;
893 if (error) { /* name was found */
894 struct vattr vattr;
895 int vpid;
896
897 vp = *vpp;
898 vpid = vp->v_id;
899 if (dvp == vp) { /* lookup on current */
67773eb3 900 /* vp already ref'd */
984263bc
MD
901 error = 0;
902 NCPVNDEBUG("cached '.'");
2b69e610 903 } else if (flags & CNP_ISDOTDOT) {
41a01a4d
MD
904 VOP_UNLOCK(dvp, NULL, 0, td); /* unlock parent */
905 error = vget(vp, NULL, LK_EXCLUSIVE, td);
67773eb3 906 vrele(vp);
984263bc 907 if (!error && lockparent && islastcn)
41a01a4d 908 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
984263bc 909 } else {
41a01a4d 910 error = vget(vp, NULL, LK_EXCLUSIVE, td);
67773eb3 911 vrele(vp);
984263bc 912 if (!lockparent || error || !islastcn)
41a01a4d 913 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
914 }
915 if (!error) {
916 if (vpid == vp->v_id) {
3b568787 917 if (!VOP_GETATTR(vp, &vattr, td)
984263bc 918 && vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) {
2b69e610
MD
919 if (nameiop != NAMEI_LOOKUP && islastcn)
920 cnp->cn_flags |= CNP_SAVENAME;
984263bc
MD
921 NCPVNDEBUG("use cached vnode");
922 return (0);
923 }
924 cache_purge(vp);
925 }
926 vput(vp);
927 if (lockparent && dvp != vp && islastcn)
41a01a4d 928 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc 929 }
41a01a4d 930 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
984263bc
MD
931 *vpp = NULLVP;
932 if (error)
933 return (error);
934 }
935 /* not in cache, so ... */
936 error = 0;
937 *vpp = NULLVP;
938 fap = NULL;
2b69e610 939 if (flags & CNP_ISDOTDOT) {
984263bc
MD
940 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
941 fid = nmp->n_rootent;
942 fap = NULL;
943 notfound = 0;
944 } else {
dadab5e9 945 error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
984263bc
MD
946 if (error) {
947 return error;
948 }
949 fid = dnp->n_parent;
950 fap = &fattr;
951 /*np = *npp;*/
952 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
dadab5e9 953 0, NULL, fap, td, cnp->cn_cred);
984263bc
MD
954 }
955 } else {
956 fap = &fattr;
957 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
dadab5e9 958 fap, td, cnp->cn_cred);
984263bc
MD
959 fid.f_id = fap->dirEntNum;
960 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
961 fid.f_parent = dnp->n_fid.f_parent;
962 } else
963 fid.f_parent = dnp->n_fid.f_id;
964 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
965 }
966 if (notfound && notfound < 0x80 )
967 return (notfound); /* hard error */
968 if (notfound) { /* entry not found */
969 /* Handle RENAME or CREATE case... */
2b69e610
MD
970 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent && islastcn) {
971 cnp->cn_flags |= CNP_SAVENAME;
984263bc 972 if (!lockparent)
41a01a4d 973 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
974 return (EJUSTRETURN);
975 }
976 return ENOENT;
977 }/* else {
978 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
979 }*/
980 /* handle DELETE case ... */
2b69e610 981 if (nameiop == NAMEI_DELETE && islastcn) { /* delete last component */
dadab5e9 982 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
984263bc
MD
983 if (error) return (error);
984 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
597aea93 985 vref(dvp);
984263bc
MD
986 *vpp = dvp;
987 return 0;
988 }
989 error = nwfs_nget(mp, fid, fap, dvp, &vp);
990 if (error) return (error);
991 *vpp = vp;
2b69e610 992 cnp->cn_flags |= CNP_SAVENAME; /* I free it later */
41a01a4d 993 if (!lockparent) VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
994 return (0);
995 }
2b69e610 996 if (nameiop == NAMEI_RENAME && islastcn && wantparent) {
dadab5e9 997 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
984263bc
MD
998 if (error) return (error);
999 if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
1000 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1001 if (error) return (error);
1002 *vpp = vp;
2b69e610 1003 cnp->cn_flags |= CNP_SAVENAME;
984263bc 1004 if (!lockparent)
41a01a4d 1005 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc
MD
1006 return (0);
1007 }
2b69e610 1008 if (flags & CNP_ISDOTDOT) {
41a01a4d 1009 VOP_UNLOCK(dvp, NULL, 0, td); /* race to get the inode */
984263bc
MD
1010 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
1011 if (error) {
41a01a4d 1012 vn_lock(dvp, NULL, LK_EXCLUSIVE | LK_RETRY, td);
984263bc
MD
1013 return (error);
1014 }
1015 if (lockparent && islastcn &&
41a01a4d 1016 (error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td))) {
984263bc
MD
1017 vput(vp);
1018 return (error);
1019 }
1020 *vpp = vp;
1021 } else if (NWCMPF(&dnp->n_fid, &fid)) {
1022 vref(dvp);
1023 *vpp = dvp;
1024 } else {
1025 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1026 if (error) return (error);
1027 *vpp = vp;
1028 NCPVNDEBUG("lookup: getnewvp!\n");
1029 if (!lockparent || !islastcn)
41a01a4d 1030 VOP_UNLOCK(dvp, NULL, 0, td);
984263bc 1031 }
2b69e610 1032 if ((cnp->cn_flags & CNP_MAKEENTRY)/* && !islastcn*/) {
984263bc 1033 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
21739618 1034 cache_enter(dvp, *vpp, cnp);
984263bc
MD
1035 }
1036 return (0);
1037}