ALTQ support.
[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 $
fad57d0e 33 * $DragonFly: src/sys/vfs/nwfs/nwfs_vnops.c,v 1.20 2004/11/12 00:09:42 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);
231 int error;
232
dadab5e9 233 NCPVNDEBUG("name=%s,td=%p,c=%d\n",np->n_name,ap->a_td,np->opened);
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234
235 if (vp->v_type == VDIR) return 0; /* nothing to do now */
236 error = 0;
984263bc 237 if (np->opened == 0) {
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238 return 0;
239 }
3b568787 240 error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
984263bc 241 if (np->opened == 0) {
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242 return 0;
243 }
244 if (--np->opened == 0) {
984263bc 245 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
3b568787 246 ap->a_td, proc0.p_ucred);
5fd012e0 247 }
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248 np->n_atime = 0;
249 return (error);
250}
251
252/*
253 * nwfs_getattr call from vfs.
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254 *
255 * nwfs_getattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
256 * struct thread *a_td)
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257 */
258static int
a9bb80e0 259nwfs_getattr(struct vop_getattr_args *ap)
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260{
261 struct vnode *vp = ap->a_vp;
262 struct nwnode *np = VTONW(vp);
263 struct vattr *va=ap->a_vap;
264 struct nwmount *nmp = VTONWFS(vp);
265 struct nw_entry_info fattr;
266 int error;
267 u_int32_t oldsize;
268
269 NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
270 error = nwfs_attr_cachelookup(vp,va);
271 if (!error) return 0;
272 NCPVNDEBUG("not in cache\n");
273 oldsize = np->n_size;
274 if (np->n_flag & NVOLUME) {
275 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
3b568787 276 ap->a_td,proc0.p_ucred);
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277 } else {
278 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
3b568787 279 np->n_name, &fattr, ap->a_td, proc0.p_ucred);
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280 }
281 if (error) {
282 NCPVNDEBUG("error %d\n", error);
283 return error;
284 }
285 nwfs_attr_cacheenter(vp, &fattr);
286 *va = np->n_vattr;
287 if (np->opened)
288 np->n_size = oldsize;
289 return (0);
290}
291/*
292 * nwfs_setattr call from vfs.
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293 *
294 * nwfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
295 * struct thread *a_td)
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296 */
297static int
a9bb80e0 298nwfs_setattr(struct vop_setattr_args *ap)
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299{
300 struct vnode *vp = ap->a_vp;
301 struct nwnode *np = VTONW(vp);
302 struct vattr *vap = ap->a_vap;
303 u_quad_t tsize=0;
304 int error = 0;
305
306 NCPVNDEBUG("\n");
307 if (vap->va_flags != VNOVAL)
308 return (EOPNOTSUPP);
309 /*
310 * Disallow write attempts if the filesystem is mounted read-only.
311 */
312 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
313 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
314 vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
315 return (EROFS);
316 if (vap->va_size != VNOVAL) {
317 switch (vp->v_type) {
318 case VDIR:
319 return (EISDIR);
320 case VREG:
321 /*
322 * Disallow write attempts if the filesystem is
323 * mounted read-only.
324 */
325 if (vp->v_mount->mnt_flag & MNT_RDONLY)
326 return (EROFS);
327 vnode_pager_setsize(vp, (u_long)vap->va_size);
328 tsize = np->n_size;
329 np->n_size = vap->va_size;
330 break;
331 default:
332 return EINVAL;
333 };
334 }
dadab5e9 335 error = ncp_setattr(vp, vap, ap->a_cred, ap->a_td);
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336 if (error && vap->va_size != VNOVAL) {
337 np->n_size = tsize;
338 vnode_pager_setsize(vp, (u_long)tsize);
339 }
340 np->n_atime = 0; /* invalidate cache */
3b568787 341 VOP_GETATTR(vp, vap, ap->a_td);
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342 np->n_mtime = vap->va_mtime.tv_sec;
343 return (0);
344}
a9bb80e0 345
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346/*
347 * nwfs_read call.
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348 *
349 * nwfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
350 * struct ucred *a_cred)
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351 */
352static int
a9bb80e0 353nwfs_read(struct vop_read_args *ap)
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354{
355 struct vnode *vp = ap->a_vp;
356 struct uio *uio=ap->a_uio;
357 int error;
358 NCPVNDEBUG("nwfs_read:\n");
359
360 if (vp->v_type != VREG && vp->v_type != VDIR)
361 return (EPERM);
362 error = nwfs_readvnode(vp, uio, ap->a_cred);
363 return error;
364}
365
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366/*
367 * nwfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
368 * struct ucred *a_cred)
369 */
984263bc 370static int
a9bb80e0 371nwfs_write(struct vop_write_args *ap)
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372{
373 struct vnode *vp = ap->a_vp;
374 struct uio *uio = ap->a_uio;
375 int error;
376
377 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
378
379 if (vp->v_type != VREG)
380 return (EPERM);
381 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
382 return(error);
383}
384/*
385 * nwfs_create call
386 * Create a regular file. On entry the directory to contain the file being
fad57d0e 387 * created is locked. We must release before we return.
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388 *
389 * nwfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
390 * struct componentname *a_cnpl, struct vattr *a_vap)
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391 */
392static int
a9bb80e0 393nwfs_create(struct vop_create_args *ap)
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394{
395 struct vnode *dvp = ap->a_dvp;
396 struct vattr *vap = ap->a_vap;
397 struct vnode **vpp=ap->a_vpp;
398 struct componentname *cnp = ap->a_cnp;
399 struct vnode *vp = (struct vnode *)0;
400 int error = 0, fmode;
401 struct vattr vattr;
402 struct nwnode *np;
403 struct ncp_open_info no;
404 struct nwmount *nmp=VTONWFS(dvp);
405 ncpfid fid;
406
407
408 NCPVNDEBUG("\n");
409 *vpp = NULL;
410 if (vap->va_type == VSOCK)
411 return (EOPNOTSUPP);
3b568787 412 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
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413 return (error);
414 }
415 fmode = AR_READ | AR_WRITE;
416/* if (vap->va_vaflags & VA_EXCLUSIVE)
417 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
418
419 error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr,
420 OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
dadab5e9 421 0, fmode, &no, cnp->cn_td, cnp->cn_cred);
984263bc 422 if (!error) {
dadab5e9 423 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
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424 fid.f_parent = VTONW(dvp)->n_fid.f_id;
425 fid.f_id = no.fattr.dirEntNum;
426 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
427 if (!error) {
428 np = VTONW(vp);
429 np->opened = 0;
430 *vpp = vp;
431 }
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432 }
433 return (error);
434}
435
436/*
437 * nwfs_remove call. It isn't possible to emulate UFS behaivour because
438 * NetWare doesn't allow delete/rename operations on an opened file.
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439 *
440 * nwfs_remove(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
441 * struct vnode *a_vp, struct componentname *a_cnp)
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442 */
443static int
a9bb80e0 444nwfs_remove(struct vop_remove_args *ap)
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445{
446 struct vnode *vp = ap->a_vp;
447 struct vnode *dvp = ap->a_dvp;
448 struct componentname *cnp = ap->a_cnp;
449 struct nwnode *np = VTONW(vp);
450 struct nwmount *nmp = VTONWFS(vp);
451 int error;
452
453 if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) {
454 error = EPERM;
455 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
456 error = EIO;
457 } else {
984263bc 458 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
dadab5e9 459 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
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460 if (error == 0)
461 np->n_flag |= NSHOULDFREE;
462 else if (error == 0x899c)
463 error = EACCES;
464 }
465 return (error);
466}
467
468/*
469 * nwfs_file rename call
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470 *
471 * nwfs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
472 * struct componentname *a_fcnp, struct vnode *a_tdvp,
473 * struct vnode *a_tvp, struct componentname *a_tcnp)
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474 */
475static int
a9bb80e0 476nwfs_rename(struct vop_rename_args *ap)
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477{
478 struct vnode *fvp = ap->a_fvp;
479 struct vnode *tvp = ap->a_tvp;
480 struct vnode *fdvp = ap->a_fdvp;
481 struct vnode *tdvp = ap->a_tdvp;
482 struct componentname *tcnp = ap->a_tcnp;
483 struct componentname *fcnp = ap->a_fcnp;
484 struct nwmount *nmp=VTONWFS(fvp);
485 u_int16_t oldtype = 6;
486 int error=0;
487
488 /* Check for cross-device rename */
489 if ((fvp->v_mount != tdvp->v_mount) ||
490 (tvp && (fvp->v_mount != tvp->v_mount))) {
491 error = EXDEV;
492 goto out;
493 }
494
495 if (tvp && tvp->v_usecount > 1) {
496 error = EBUSY;
497 goto out;
498 }
499 if (tvp && tvp != fvp) {
500 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
501 tcnp->cn_namelen, tcnp->cn_nameptr,
dadab5e9 502 tcnp->cn_td, tcnp->cn_cred);
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503 if (error == 0x899c) error = EACCES;
504 if (error)
505 goto out;
506 }
507 if (fvp->v_type == VDIR) {
508 oldtype |= NW_TYPE_SUBDIR;
509 } else if (fvp->v_type == VREG) {
510 oldtype |= NW_TYPE_FILE;
511 } else
512 return EINVAL;
513 error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
514 oldtype, &nmp->m.nls,
515 VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
516 VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
dadab5e9 517 tcnp->cn_td,tcnp->cn_cred);
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518
519 if (error == 0x8992)
520 error = EEXIST;
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521out:
522 if (tdvp == tvp)
523 vrele(tdvp);
524 else
525 vput(tdvp);
526 if (tvp)
527 vput(tvp);
528 vrele(fdvp);
529 vrele(fvp);
530 nwfs_attr_cacheremove(fdvp);
531 nwfs_attr_cacheremove(tdvp);
532 /*
533 * Need to get rid of old vnodes, because netware will change
534 * file id on rename
535 */
536 vgone(fvp);
537 if (tvp)
538 vgone(tvp);
539 /*
540 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
541 */
542 if (error == ENOENT)
543 error = 0;
544 return (error);
545}
546
547/*
548 * nwfs hard link create call
549 * Netware filesystems don't know what links are.
a9bb80e0
CP
550 *
551 * nwfs_link(struct vnode *a_tdvp, struct vnode *a_vp,
552 * struct componentname *a_cnp)
984263bc
MD
553 */
554static int
a9bb80e0 555nwfs_link(struct vop_link_args *ap)
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MD
556{
557 return EOPNOTSUPP;
558}
559
560/*
561 * nwfs_symlink link create call
562 * Netware filesystems don't know what symlinks are.
a9bb80e0
CP
563 *
564 * nwfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
565 * struct componentname *a_cnp, struct vattr *a_vap,
566 * char *a_target)
984263bc
MD
567 */
568static int
a9bb80e0 569nwfs_symlink(struct vop_symlink_args *ap)
984263bc
MD
570{
571 return (EOPNOTSUPP);
572}
573
a9bb80e0 574static int nwfs_mknod(struct vop_mknod_args *ap)
984263bc
MD
575{
576 return (EOPNOTSUPP);
577}
578
579/*
580 * nwfs_mkdir call
a9bb80e0
CP
581 *
582 * nwfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
583 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc
MD
584 */
585static int
a9bb80e0 586nwfs_mkdir(struct vop_mkdir_args *ap)
984263bc
MD
587{
588 struct vnode *dvp = ap->a_dvp;
589/* struct vattr *vap = ap->a_vap;*/
590 struct componentname *cnp = ap->a_cnp;
591 int len=cnp->cn_namelen;
592 struct ncp_open_info no;
593 struct nwnode *np;
594 struct vnode *newvp = (struct vnode *)0;
595 ncpfid fid;
596 int error = 0;
597 struct vattr vattr;
598 char *name=cnp->cn_nameptr;
599
3b568787 600 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
984263bc
MD
601 return (error);
602 }
603 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
604 return EEXIST;
605 }
606 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
607 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
dadab5e9 608 &no, cnp->cn_td, cnp->cn_cred) != 0) {
984263bc
MD
609 error = EACCES;
610 } else {
611 error = 0;
612 }
613 if (!error) {
614 fid.f_parent = VTONW(dvp)->n_fid.f_id;
615 fid.f_id = no.fattr.dirEntNum;
616 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
617 if (!error) {
618 np = VTONW(newvp);
619 newvp->v_type = VDIR;
620 *ap->a_vpp = newvp;
621 }
622 }
623 return (error);
624}
625
626/*
627 * nwfs_remove directory call
a9bb80e0
CP
628 *
629 * nwfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
630 * struct componentname *a_cnp)
984263bc
MD
631 */
632static int
a9bb80e0 633nwfs_rmdir(struct vop_rmdir_args *ap)
984263bc
MD
634{
635 struct vnode *vp = ap->a_vp;
636 struct vnode *dvp = ap->a_dvp;
637 struct componentname *cnp = ap->a_cnp;
638 struct nwnode *np = VTONW(vp);
639 struct nwmount *nmp = VTONWFS(vp);
640 struct nwnode *dnp = VTONW(dvp);
641 int error = EIO;
642
643 if (dvp == vp)
644 return EINVAL;
645
646 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
dadab5e9 647 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
984263bc
MD
648 if (error == 0)
649 np->n_flag |= NSHOULDFREE;
650 else if (error == NWE_DIR_NOT_EMPTY)
651 error = ENOTEMPTY;
652 dnp->n_flag |= NMODIFIED;
653 nwfs_attr_cacheremove(dvp);
984263bc
MD
654 return (error);
655}
656
657/*
658 * nwfs_readdir call
a9bb80e0
CP
659 *
660 * nwfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
661 * int *a_eofflag, u_long *a_cookies, int a_ncookies)
984263bc
MD
662 */
663static int
a9bb80e0 664nwfs_readdir(struct vop_readdir_args *ap)
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MD
665{
666 struct vnode *vp = ap->a_vp;
667 struct uio *uio = ap->a_uio;
668 int error;
669
670 if (vp->v_type != VDIR)
671 return (EPERM);
672 if (ap->a_ncookies) {
673 printf("nwfs_readdir: no support for cookies now...");
674 return (EOPNOTSUPP);
675 }
676
677 error = nwfs_readvnode(vp, uio, ap->a_cred);
678 return error;
679}
a9bb80e0
CP
680
681/*
682 * nwfs_fsync(struct vnodeop_desc *a_desc, struct vnode *a_vp,
683 * struct ucred *a_cred, int a_waitfor, struct thread *a_td)
684 */
984263bc
MD
685/* ARGSUSED */
686static int
a9bb80e0 687nwfs_fsync(struct vop_fsync_args *ap)
984263bc 688{
dadab5e9 689/* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
984263bc
MD
690 return (0);
691}
692
a9bb80e0
CP
693/*
694 * nwfs_print(struct vnode *a_vp)
695 */
984263bc 696/* ARGSUSED */
a9bb80e0
CP
697static int
698nwfs_print(struct vop_print_args *ap)
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MD
699{
700 struct vnode *vp = ap->a_vp;
701 struct nwnode *np = VTONW(vp);
702
703 printf("nwfs node: name = '%s', fid = %d, pfid = %d\n",
704 np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
705 return (0);
706}
707
a9bb80e0
CP
708/*
709 * nwfs_pathconf(struct vnode *vp, int name, register_t *retval)
710 */
711static int
712nwfs_pathconf(struct vop_pathconf_args *ap)
984263bc
MD
713{
714 int name=ap->a_name, error=0;
715 register_t *retval=ap->a_retval;
716
717 switch(name){
718 case _PC_LINK_MAX:
719 *retval=0;
720 break;
721 case _PC_NAME_MAX:
722 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
723 break;
724 case _PC_PATH_MAX:
725 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
726 break;
727 default:
728 error=EINVAL;
729 }
730 return(error);
731}
732
a9bb80e0
CP
733/*
734 * nwfs_strategy(struct buf *a_bp)
735 */
736static int
737nwfs_strategy(struct vop_strategy_args *ap)
984263bc
MD
738{
739 struct buf *bp=ap->a_bp;
984263bc 740 int error = 0;
dadab5e9 741 struct thread *td = NULL;
984263bc
MD
742
743 NCPVNDEBUG("\n");
744 if (bp->b_flags & B_PHYS)
745 panic("nwfs physio");
dadab5e9
MD
746 if ((bp->b_flags & B_ASYNC) == 0)
747 td = curthread; /* YYY dunno if this is legal */
984263bc
MD
748 /*
749 * If the op is asynchronous and an i/o daemon is waiting
750 * queue the request, wake it up and wait for completion
751 * otherwise just do it ourselves.
752 */
753 if ((bp->b_flags & B_ASYNC) == 0 )
3b568787 754 error = nwfs_doio(bp, proc0.p_ucred, td);
984263bc
MD
755 return (error);
756}
757
a9bb80e0
CP
758/*
759 * nwfs_bmap(struct vnode *a_vp, daddr_t a_bn, struct vnode **a_vpp,
760 * daddr_t *a_bnp, int *a_runp, int *a_runb)
761 */
984263bc 762static int
a9bb80e0 763nwfs_bmap(struct vop_bmap_args *ap)
984263bc
MD
764{
765 struct vnode *vp = ap->a_vp;
766
767 if (ap->a_vpp != NULL)
768 *ap->a_vpp = vp;
769 if (ap->a_bnp != NULL)
770 *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize);
771 if (ap->a_runp != NULL)
772 *ap->a_runp = 0;
773 if (ap->a_runb != NULL)
774 *ap->a_runb = 0;
775 return (0);
776}
777
778int
779nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
780 struct vnode *dvp, struct vnode **vpp)
781{
782 int error;
783 struct nwnode *newnp;
784 struct vnode *vp;
785
786 *vpp = NULL;
787 error = nwfs_allocvp(mp, fid, &vp);
788 if (error)
789 return error;
790 newnp = VTONW(vp);
791 if (fap) {
792 newnp->n_attr = fap->attributes;
793 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
794 nwfs_attr_cacheenter(vp, fap);
795 }
796 if (dvp) {
797 newnp->n_parent = VTONW(dvp)->n_fid;
798 if ((newnp->n_flag & NNEW) && vp->v_type == VDIR) {
799 if ((dvp->v_flag & VROOT) == 0) {
800 newnp->n_refparent = 1;
801 vref(dvp); /* vhold */
802 }
803 }
804 } else {
805 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
806 printf("new vnode '%s' borned without parent ?\n",newnp->n_name);
807 }
808 newnp->n_flag &= ~NNEW;
809 *vpp = vp;
810 return 0;
811}
812
813/*
814 * How to keep the brain busy ...
815 * Currently lookup routine can make two lookup for vnode. This can be
816 * avoided by reorg the code.
a9bb80e0
CP
817 *
818 * nwfs_lookup(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
819 * struct vnode **a_vpp, struct componentname *a_cnp)
984263bc
MD
820 */
821int
a9bb80e0 822nwfs_lookup(struct vop_lookup_args *ap)
984263bc
MD
823{
824 struct componentname *cnp = ap->a_cnp;
825 struct vnode *dvp = ap->a_dvp;
826 struct vnode **vpp = ap->a_vpp;
827 int flags = cnp->cn_flags;
828 struct vnode *vp;
829 struct nwmount *nmp;
830 struct mount *mp = dvp->v_mount;
831 struct nwnode *dnp, *npp;
832 struct nw_entry_info fattr, *fap;
833 ncpfid fid;
fad57d0e 834 int nameiop=cnp->cn_nameiop;
984263bc 835 int lockparent, wantparent, error = 0, notfound;
dadab5e9 836 struct thread *td = cnp->cn_td;
984263bc
MD
837 char _name[cnp->cn_namelen+1];
838 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
839 _name[cnp->cn_namelen]=0;
840
841 if (dvp->v_type != VDIR)
842 return (ENOTDIR);
2b69e610 843 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
984263bc
MD
844 printf("nwfs_lookup: invalid '..'\n");
845 return EIO;
846 }
847
848 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
849 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
850
fad57d0e 851 if ((mp->mnt_flag & MNT_RDONLY) && nameiop != NAMEI_LOOKUP)
984263bc 852 return (EROFS);
dadab5e9 853 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)))
984263bc 854 return (error);
2b69e610
MD
855 lockparent = flags & CNP_LOCKPARENT;
856 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
984263bc
MD
857 nmp = VFSTONWFS(mp);
858 dnp = VTONW(dvp);
859/*
2b69e610 860printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & CNP_ISDOTDOT);
984263bc
MD
861*/
862 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
2b69e610 863 (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
984263bc
MD
864 if (error)
865 return ENOENT;
866
984263bc
MD
867 error = 0;
868 *vpp = NULLVP;
869 fap = NULL;
2b69e610 870 if (flags & CNP_ISDOTDOT) {
984263bc
MD
871 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
872 fid = nmp->n_rootent;
873 fap = NULL;
874 notfound = 0;
875 } else {
dadab5e9 876 error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
984263bc
MD
877 if (error) {
878 return error;
879 }
880 fid = dnp->n_parent;
881 fap = &fattr;
882 /*np = *npp;*/
883 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
dadab5e9 884 0, NULL, fap, td, cnp->cn_cred);
984263bc
MD
885 }
886 } else {
887 fap = &fattr;
888 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
dadab5e9 889 fap, td, cnp->cn_cred);
984263bc
MD
890 fid.f_id = fap->dirEntNum;
891 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
892 fid.f_parent = dnp->n_fid.f_parent;
893 } else
894 fid.f_parent = dnp->n_fid.f_id;
895 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
896 }
897 if (notfound && notfound < 0x80 )
898 return (notfound); /* hard error */
899 if (notfound) { /* entry not found */
900 /* Handle RENAME or CREATE case... */
fad57d0e 901 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent) {
984263bc 902 if (!lockparent)
5fd012e0 903 VOP_UNLOCK(dvp, 0, td);
984263bc
MD
904 return (EJUSTRETURN);
905 }
906 return ENOENT;
907 }/* else {
908 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
909 }*/
910 /* handle DELETE case ... */
fad57d0e 911 if (nameiop == NAMEI_DELETE) { /* delete last component */
dadab5e9 912 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
984263bc
MD
913 if (error) return (error);
914 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
597aea93 915 vref(dvp);
984263bc
MD
916 *vpp = dvp;
917 return 0;
918 }
919 error = nwfs_nget(mp, fid, fap, dvp, &vp);
920 if (error) return (error);
921 *vpp = vp;
5fd012e0 922 if (!lockparent) VOP_UNLOCK(dvp, 0, td);
984263bc
MD
923 return (0);
924 }
fad57d0e 925 if (nameiop == NAMEI_RENAME && wantparent) {
dadab5e9 926 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
984263bc
MD
927 if (error) return (error);
928 if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
929 error = nwfs_nget(mp, fid, fap, dvp, &vp);
930 if (error) return (error);
931 *vpp = vp;
984263bc 932 if (!lockparent)
5fd012e0 933 VOP_UNLOCK(dvp, 0, td);
984263bc
MD
934 return (0);
935 }
2b69e610 936 if (flags & CNP_ISDOTDOT) {
5fd012e0 937 VOP_UNLOCK(dvp, 0, td); /* race to get the inode */
984263bc
MD
938 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
939 if (error) {
5fd012e0 940 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, td);
984263bc
MD
941 return (error);
942 }
fad57d0e 943 if (lockparent && (error = vn_lock(dvp, LK_EXCLUSIVE, td))) {
984263bc
MD
944 vput(vp);
945 return (error);
946 }
947 *vpp = vp;
948 } else if (NWCMPF(&dnp->n_fid, &fid)) {
949 vref(dvp);
950 *vpp = dvp;
951 } else {
952 error = nwfs_nget(mp, fid, fap, dvp, &vp);
953 if (error) return (error);
954 *vpp = vp;
955 NCPVNDEBUG("lookup: getnewvp!\n");
fad57d0e 956 if (!lockparent)
5fd012e0 957 VOP_UNLOCK(dvp, 0, td);
984263bc 958 }
fad57d0e
MD
959#if 0
960 /* XXX MOVE TO NREMOVE */
961 if ((cnp->cn_flags & CNP_MAKEENTRY)) {
984263bc 962 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
fad57d0e 963 /* XXX */
984263bc 964 }
fad57d0e 965#endif
984263bc
MD
966 return (0);
967}