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[dragonfly.git] / sys / vfs / nwfs / nwfs_vnops.c
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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 $
3c37c940 33 * $DragonFly: src/sys/vfs/nwfs/nwfs_vnops.c,v 1.35 2007/05/06 19:23:35 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 */
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63static int nwfs_create(struct vop_old_create_args *);
64static int nwfs_mknod(struct vop_old_mknod_args *);
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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 *);
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73static int nwfs_remove(struct vop_old_remove_args *);
74static int nwfs_link(struct vop_old_link_args *);
75static int nwfs_lookup(struct vop_old_lookup_args *);
76static int nwfs_rename(struct vop_old_rename_args *);
77static int nwfs_mkdir(struct vop_old_mkdir_args *);
78static int nwfs_rmdir(struct vop_old_rmdir_args *);
79static int nwfs_symlink(struct vop_old_symlink_args *);
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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 */
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87struct vop_ops nwfs_vnode_vops = {
88 .vop_default = vop_defaultop,
89 .vop_access = nwfs_access,
90 .vop_bmap = nwfs_bmap,
91 .vop_open = nwfs_open,
92 .vop_close = nwfs_close,
93 .vop_old_create = nwfs_create,
94 .vop_fsync = nwfs_fsync,
95 .vop_getattr = nwfs_getattr,
96 .vop_getpages = nwfs_getpages,
97 .vop_putpages = nwfs_putpages,
98 .vop_ioctl = nwfs_ioctl,
99 .vop_inactive = nwfs_inactive,
66a1ddf5 100 .vop_old_link = nwfs_link,
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101 .vop_old_lookup = nwfs_lookup,
102 .vop_old_mkdir = nwfs_mkdir,
103 .vop_old_mknod = nwfs_mknod,
104 .vop_pathconf = nwfs_pathconf,
105 .vop_print = nwfs_print,
106 .vop_read = nwfs_read,
107 .vop_readdir = nwfs_readdir,
108 .vop_reclaim = nwfs_reclaim,
109 .vop_old_remove = nwfs_remove,
110 .vop_old_rename = nwfs_rename,
111 .vop_old_rmdir = nwfs_rmdir,
112 .vop_setattr = nwfs_setattr,
113 .vop_strategy = nwfs_strategy,
114 .vop_old_symlink = nwfs_symlink,
66a1ddf5 115 .vop_write = nwfs_write
984263bc 116};
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117
118/*
119 * nwfs_access vnode op
120 * for now just return ok
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121 *
122 * nwfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
123 * struct thread *a_td)
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124 */
125static int
a9bb80e0 126nwfs_access(struct vop_access_args *ap)
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127{
128 struct vnode *vp = ap->a_vp;
129 struct ucred *cred = ap->a_cred;
130 u_int mode = ap->a_mode;
131 struct nwmount *nmp = VTONWFS(vp);
132 int error = 0;
133
134 NCPVNDEBUG("\n");
135 if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
136 switch (vp->v_type) {
137 case VREG: case VDIR: case VLNK:
138 return (EROFS);
139 default:
140 break;
141 }
142 }
143 if (cred->cr_uid == 0)
144 return 0;
145 if (cred->cr_uid != nmp->m.uid) {
146 mode >>= 3;
147 if (!groupmember(nmp->m.gid, cred))
148 mode >>= 3;
149 }
150 error = (((vp->v_type == VREG) ? nmp->m.file_mode : nmp->m.dir_mode) & mode) == mode ? 0 : EACCES;
151 return error;
152}
153/*
154 * nwfs_open vnode op
a9bb80e0 155 *
87de5057 156 * nwfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred)
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157 */
158/* ARGSUSED */
159static int
a9bb80e0 160nwfs_open(struct vop_open_args *ap)
984263bc 161{
87de5057 162 thread_t td = curthread; /* XXX */
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163 struct vnode *vp = ap->a_vp;
164 int mode = ap->a_mode;
165 struct nwnode *np = VTONW(vp);
166 struct ncp_open_info no;
167 struct nwmount *nmp = VTONWFS(vp);
168 struct vattr vattr;
169 int error, nwm;
170
171 NCPVNDEBUG("%s,%d\n",np->n_name, np->opened);
172 if (vp->v_type != VREG && vp->v_type != VDIR) {
173 NCPFATAL("open vtype = %d\n", vp->v_type);
174 return (EACCES);
175 }
176 if (vp->v_type == VDIR) return 0; /* nothing to do now */
177 if (np->n_flag & NMODIFIED) {
87de5057 178 if ((error = nwfs_vinvalbuf(vp, V_SAVE, 1)) == EINTR)
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179 return (error);
180 np->n_atime = 0;
87de5057 181 error = VOP_GETATTR(vp, &vattr);
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182 if (error)
183 return (error);
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184 np->n_mtime = vattr.va_mtime.tv_sec;
185 } else {
87de5057 186 error = VOP_GETATTR(vp, &vattr);
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187 if (error)
188 return (error);
984263bc 189 if (np->n_mtime != vattr.va_mtime.tv_sec) {
87de5057 190 if ((error = nwfs_vinvalbuf(vp, V_SAVE, 1)) == EINTR)
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191 return (error);
192 np->n_mtime = vattr.va_mtime.tv_sec;
193 }
194 }
195 if (np->opened) {
196 np->opened++;
8ddc6004 197 return (vop_stdopen(ap));
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198 }
199 nwm = AR_READ;
200 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
201 nwm |= AR_WRITE;
202 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
87de5057 203 0, nwm, &no, td, ap->a_cred);
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204 if (error) {
205 if (mode & FWRITE)
206 return EACCES;
207 nwm = AR_READ;
208 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
87de5057 209 nwm, &no, td, ap->a_cred);
984263bc 210 }
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211 np->n_atime = 0;
212 if (error == 0) {
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213 np->opened++;
214 np->n_fh = no.fh;
215 np->n_origfh = no.origfh;
8ddc6004 216 error = vop_stdopen(ap);
984263bc 217 }
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218 return (error);
219}
220
a9bb80e0 221/*
31bd717a 222 * nwfs_close(struct vnode *a_vp, int a_fflag,
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223 * struct ucred *a_cred, struct thread *a_td)
224 */
984263bc 225static int
a9bb80e0 226nwfs_close(struct vop_close_args *ap)
984263bc 227{
87de5057 228 thread_t td = curthread; /* XXX */
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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);
984263bc 234
984263bc 235 error = 0;
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236 if (vp->v_type == VDIR)
237 goto done;
238 if (np->opened == 0)
239 goto done;
87de5057 240 error = nwfs_vinvalbuf(vp, V_SAVE, 1);
984263bc 241 if (np->opened == 0) {
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242 error = 0; /* huh? */
243 goto done;
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244 }
245 if (--np->opened == 0) {
984263bc 246 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
87de5057 247 td, proc0.p_ucred);
5fd012e0 248 }
984263bc 249 np->n_atime = 0;
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250done:
251 vop_stdclose(ap);
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252 return (error);
253}
254
255/*
256 * nwfs_getattr call from vfs.
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257 *
258 * nwfs_getattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
259 * struct thread *a_td)
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260 */
261static int
a9bb80e0 262nwfs_getattr(struct vop_getattr_args *ap)
984263bc 263{
87de5057 264 thread_t td = curthread; /* XXX */
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265 struct vnode *vp = ap->a_vp;
266 struct nwnode *np = VTONW(vp);
267 struct vattr *va=ap->a_vap;
268 struct nwmount *nmp = VTONWFS(vp);
269 struct nw_entry_info fattr;
270 int error;
271 u_int32_t oldsize;
272
273 NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
274 error = nwfs_attr_cachelookup(vp,va);
275 if (!error) return 0;
276 NCPVNDEBUG("not in cache\n");
277 oldsize = np->n_size;
278 if (np->n_flag & NVOLUME) {
279 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
87de5057 280 td,proc0.p_ucred);
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281 } else {
282 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
87de5057 283 np->n_name, &fattr, td, proc0.p_ucred);
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284 }
285 if (error) {
286 NCPVNDEBUG("error %d\n", error);
287 return error;
288 }
289 nwfs_attr_cacheenter(vp, &fattr);
290 *va = np->n_vattr;
291 if (np->opened)
292 np->n_size = oldsize;
293 return (0);
294}
295/*
296 * nwfs_setattr call from vfs.
a9bb80e0 297 *
87de5057 298 * nwfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred)
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299 */
300static int
a9bb80e0 301nwfs_setattr(struct vop_setattr_args *ap)
984263bc 302{
87de5057 303 thread_t td = curthread; /* XXX */
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304 struct vnode *vp = ap->a_vp;
305 struct nwnode *np = VTONW(vp);
306 struct vattr *vap = ap->a_vap;
307 u_quad_t tsize=0;
308 int error = 0;
309
310 NCPVNDEBUG("\n");
311 if (vap->va_flags != VNOVAL)
312 return (EOPNOTSUPP);
313 /*
314 * Disallow write attempts if the filesystem is mounted read-only.
315 */
316 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
317 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
318 vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
319 return (EROFS);
320 if (vap->va_size != VNOVAL) {
321 switch (vp->v_type) {
322 case VDIR:
323 return (EISDIR);
324 case VREG:
325 /*
326 * Disallow write attempts if the filesystem is
327 * mounted read-only.
328 */
329 if (vp->v_mount->mnt_flag & MNT_RDONLY)
330 return (EROFS);
331 vnode_pager_setsize(vp, (u_long)vap->va_size);
332 tsize = np->n_size;
333 np->n_size = vap->va_size;
334 break;
335 default:
336 return EINVAL;
337 };
338 }
87de5057 339 error = ncp_setattr(vp, vap, ap->a_cred, td);
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340 if (error && vap->va_size != VNOVAL) {
341 np->n_size = tsize;
342 vnode_pager_setsize(vp, (u_long)tsize);
343 }
344 np->n_atime = 0; /* invalidate cache */
87de5057 345 VOP_GETATTR(vp, vap);
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346 np->n_mtime = vap->va_mtime.tv_sec;
347 return (0);
348}
a9bb80e0 349
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350/*
351 * nwfs_read call.
a9bb80e0
CP
352 *
353 * nwfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
354 * struct ucred *a_cred)
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355 */
356static int
a9bb80e0 357nwfs_read(struct vop_read_args *ap)
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358{
359 struct vnode *vp = ap->a_vp;
360 struct uio *uio=ap->a_uio;
361 int error;
362 NCPVNDEBUG("nwfs_read:\n");
363
364 if (vp->v_type != VREG && vp->v_type != VDIR)
365 return (EPERM);
366 error = nwfs_readvnode(vp, uio, ap->a_cred);
367 return error;
368}
369
a9bb80e0
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370/*
371 * nwfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
372 * struct ucred *a_cred)
373 */
984263bc 374static int
a9bb80e0 375nwfs_write(struct vop_write_args *ap)
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376{
377 struct vnode *vp = ap->a_vp;
378 struct uio *uio = ap->a_uio;
379 int error;
380
381 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
382
383 if (vp->v_type != VREG)
384 return (EPERM);
385 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
386 return(error);
387}
388/*
389 * nwfs_create call
390 * Create a regular file. On entry the directory to contain the file being
fad57d0e 391 * created is locked. We must release before we return.
a9bb80e0
CP
392 *
393 * nwfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
394 * struct componentname *a_cnpl, struct vattr *a_vap)
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395 */
396static int
e62afb5f 397nwfs_create(struct vop_old_create_args *ap)
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398{
399 struct vnode *dvp = ap->a_dvp;
400 struct vattr *vap = ap->a_vap;
401 struct vnode **vpp=ap->a_vpp;
402 struct componentname *cnp = ap->a_cnp;
403 struct vnode *vp = (struct vnode *)0;
404 int error = 0, fmode;
405 struct vattr vattr;
406 struct nwnode *np;
407 struct ncp_open_info no;
408 struct nwmount *nmp=VTONWFS(dvp);
409 ncpfid fid;
410
411
412 NCPVNDEBUG("\n");
413 *vpp = NULL;
414 if (vap->va_type == VSOCK)
415 return (EOPNOTSUPP);
87de5057 416 if ((error = VOP_GETATTR(dvp, &vattr))) {
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417 return (error);
418 }
419 fmode = AR_READ | AR_WRITE;
420/* if (vap->va_vaflags & VA_EXCLUSIVE)
421 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
422
423 error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr,
424 OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
dadab5e9 425 0, fmode, &no, cnp->cn_td, cnp->cn_cred);
984263bc 426 if (!error) {
dadab5e9 427 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
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428 fid.f_parent = VTONW(dvp)->n_fid.f_id;
429 fid.f_id = no.fattr.dirEntNum;
430 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
431 if (!error) {
432 np = VTONW(vp);
433 np->opened = 0;
434 *vpp = vp;
435 }
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436 }
437 return (error);
438}
439
440/*
441 * nwfs_remove call. It isn't possible to emulate UFS behaivour because
442 * NetWare doesn't allow delete/rename operations on an opened file.
a9bb80e0 443 *
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444 * nwfs_remove(struct vnode *a_dvp,
445 * struct vnode *a_vp, struct componentname *a_cnp)
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446 */
447static int
e62afb5f 448nwfs_remove(struct vop_old_remove_args *ap)
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449{
450 struct vnode *vp = ap->a_vp;
451 struct vnode *dvp = ap->a_dvp;
452 struct componentname *cnp = ap->a_cnp;
453 struct nwnode *np = VTONW(vp);
454 struct nwmount *nmp = VTONWFS(vp);
455 int error;
456
3c37c940 457 if (vp->v_type == VDIR || np->opened || vp->v_sysref.refcnt > 1) {
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458 error = EPERM;
459 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
460 error = EIO;
461 } else {
984263bc 462 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
dadab5e9 463 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
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464 if (error == 0)
465 np->n_flag |= NSHOULDFREE;
466 else if (error == 0x899c)
467 error = EACCES;
468 }
469 return (error);
470}
471
472/*
473 * nwfs_file rename call
a9bb80e0
CP
474 *
475 * nwfs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
476 * struct componentname *a_fcnp, struct vnode *a_tdvp,
477 * struct vnode *a_tvp, struct componentname *a_tcnp)
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478 */
479static int
e62afb5f 480nwfs_rename(struct vop_old_rename_args *ap)
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481{
482 struct vnode *fvp = ap->a_fvp;
483 struct vnode *tvp = ap->a_tvp;
484 struct vnode *fdvp = ap->a_fdvp;
485 struct vnode *tdvp = ap->a_tdvp;
486 struct componentname *tcnp = ap->a_tcnp;
487 struct componentname *fcnp = ap->a_fcnp;
488 struct nwmount *nmp=VTONWFS(fvp);
489 u_int16_t oldtype = 6;
490 int error=0;
491
492 /* Check for cross-device rename */
493 if ((fvp->v_mount != tdvp->v_mount) ||
494 (tvp && (fvp->v_mount != tvp->v_mount))) {
495 error = EXDEV;
496 goto out;
497 }
498
3c37c940 499 if (tvp && tvp->v_sysref.refcnt > 1) {
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500 error = EBUSY;
501 goto out;
502 }
503 if (tvp && tvp != fvp) {
504 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
505 tcnp->cn_namelen, tcnp->cn_nameptr,
dadab5e9 506 tcnp->cn_td, tcnp->cn_cred);
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507 if (error == 0x899c) error = EACCES;
508 if (error)
509 goto out;
510 }
511 if (fvp->v_type == VDIR) {
512 oldtype |= NW_TYPE_SUBDIR;
513 } else if (fvp->v_type == VREG) {
514 oldtype |= NW_TYPE_FILE;
515 } else
516 return EINVAL;
517 error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
518 oldtype, &nmp->m.nls,
519 VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
520 VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
dadab5e9 521 tcnp->cn_td,tcnp->cn_cred);
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522
523 if (error == 0x8992)
524 error = EEXIST;
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525out:
526 if (tdvp == tvp)
527 vrele(tdvp);
528 else
529 vput(tdvp);
530 if (tvp)
531 vput(tvp);
532 vrele(fdvp);
533 vrele(fvp);
534 nwfs_attr_cacheremove(fdvp);
535 nwfs_attr_cacheremove(tdvp);
536 /*
537 * Need to get rid of old vnodes, because netware will change
538 * file id on rename
539 */
3c37c940 540 vgone_vxlocked(fvp);
984263bc 541 if (tvp)
3c37c940 542 vgone_vxlocked(tvp);
984263bc
MD
543 /*
544 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
545 */
546 if (error == ENOENT)
547 error = 0;
548 return (error);
549}
550
551/*
552 * nwfs hard link create call
553 * Netware filesystems don't know what links are.
a9bb80e0
CP
554 *
555 * nwfs_link(struct vnode *a_tdvp, struct vnode *a_vp,
556 * struct componentname *a_cnp)
984263bc
MD
557 */
558static int
e62afb5f 559nwfs_link(struct vop_old_link_args *ap)
984263bc
MD
560{
561 return EOPNOTSUPP;
562}
563
564/*
565 * nwfs_symlink link create call
566 * Netware filesystems don't know what symlinks are.
a9bb80e0
CP
567 *
568 * nwfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
569 * struct componentname *a_cnp, struct vattr *a_vap,
570 * char *a_target)
984263bc
MD
571 */
572static int
e62afb5f 573nwfs_symlink(struct vop_old_symlink_args *ap)
984263bc
MD
574{
575 return (EOPNOTSUPP);
576}
577
e62afb5f 578static int nwfs_mknod(struct vop_old_mknod_args *ap)
984263bc
MD
579{
580 return (EOPNOTSUPP);
581}
582
583/*
584 * nwfs_mkdir call
a9bb80e0
CP
585 *
586 * nwfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
587 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc
MD
588 */
589static int
e62afb5f 590nwfs_mkdir(struct vop_old_mkdir_args *ap)
984263bc
MD
591{
592 struct vnode *dvp = ap->a_dvp;
593/* struct vattr *vap = ap->a_vap;*/
594 struct componentname *cnp = ap->a_cnp;
595 int len=cnp->cn_namelen;
596 struct ncp_open_info no;
597 struct nwnode *np;
598 struct vnode *newvp = (struct vnode *)0;
599 ncpfid fid;
600 int error = 0;
601 struct vattr vattr;
602 char *name=cnp->cn_nameptr;
603
87de5057 604 if ((error = VOP_GETATTR(dvp, &vattr))) {
984263bc
MD
605 return (error);
606 }
607 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
608 return EEXIST;
609 }
610 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
611 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
dadab5e9 612 &no, cnp->cn_td, cnp->cn_cred) != 0) {
984263bc
MD
613 error = EACCES;
614 } else {
615 error = 0;
616 }
617 if (!error) {
618 fid.f_parent = VTONW(dvp)->n_fid.f_id;
619 fid.f_id = no.fattr.dirEntNum;
620 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
621 if (!error) {
622 np = VTONW(newvp);
623 newvp->v_type = VDIR;
624 *ap->a_vpp = newvp;
625 }
626 }
627 return (error);
628}
629
630/*
631 * nwfs_remove directory call
a9bb80e0
CP
632 *
633 * nwfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
634 * struct componentname *a_cnp)
984263bc
MD
635 */
636static int
e62afb5f 637nwfs_rmdir(struct vop_old_rmdir_args *ap)
984263bc
MD
638{
639 struct vnode *vp = ap->a_vp;
640 struct vnode *dvp = ap->a_dvp;
641 struct componentname *cnp = ap->a_cnp;
642 struct nwnode *np = VTONW(vp);
643 struct nwmount *nmp = VTONWFS(vp);
644 struct nwnode *dnp = VTONW(dvp);
645 int error = EIO;
646
647 if (dvp == vp)
648 return EINVAL;
649
650 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
dadab5e9 651 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
984263bc
MD
652 if (error == 0)
653 np->n_flag |= NSHOULDFREE;
654 else if (error == NWE_DIR_NOT_EMPTY)
655 error = ENOTEMPTY;
656 dnp->n_flag |= NMODIFIED;
657 nwfs_attr_cacheremove(dvp);
984263bc
MD
658 return (error);
659}
660
661/*
662 * nwfs_readdir call
a9bb80e0
CP
663 *
664 * nwfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
665 * int *a_eofflag, u_long *a_cookies, int a_ncookies)
984263bc
MD
666 */
667static int
a9bb80e0 668nwfs_readdir(struct vop_readdir_args *ap)
984263bc
MD
669{
670 struct vnode *vp = ap->a_vp;
671 struct uio *uio = ap->a_uio;
672 int error;
673
674 if (vp->v_type != VDIR)
675 return (EPERM);
676 if (ap->a_ncookies) {
086c1d7e 677 kprintf("nwfs_readdir: no support for cookies now...");
984263bc
MD
678 return (EOPNOTSUPP);
679 }
885ecb13
MD
680 if ((error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY)) != 0)
681 return (error);
984263bc 682 error = nwfs_readvnode(vp, uio, ap->a_cred);
885ecb13 683 vn_unlock(vp);
984263bc
MD
684 return error;
685}
a9bb80e0
CP
686
687/*
31bd717a
MD
688 * nwfs_fsync(struct vnode *a_vp, struct ucred *a_cred,
689 * int a_waitfor, struct thread *a_td)
a9bb80e0 690 */
984263bc
MD
691/* ARGSUSED */
692static int
a9bb80e0 693nwfs_fsync(struct vop_fsync_args *ap)
984263bc 694{
dadab5e9 695/* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
984263bc
MD
696 return (0);
697}
698
a9bb80e0
CP
699/*
700 * nwfs_print(struct vnode *a_vp)
701 */
984263bc 702/* ARGSUSED */
a9bb80e0
CP
703static int
704nwfs_print(struct vop_print_args *ap)
984263bc
MD
705{
706 struct vnode *vp = ap->a_vp;
707 struct nwnode *np = VTONW(vp);
708
086c1d7e 709 kprintf("nwfs node: name = '%s', fid = %d, pfid = %d\n",
984263bc
MD
710 np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
711 return (0);
712}
713
a9bb80e0
CP
714/*
715 * nwfs_pathconf(struct vnode *vp, int name, register_t *retval)
716 */
717static int
718nwfs_pathconf(struct vop_pathconf_args *ap)
984263bc
MD
719{
720 int name=ap->a_name, error=0;
721 register_t *retval=ap->a_retval;
722
723 switch(name){
724 case _PC_LINK_MAX:
725 *retval=0;
726 break;
727 case _PC_NAME_MAX:
728 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
729 break;
730 case _PC_PATH_MAX:
731 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
732 break;
733 default:
734 error=EINVAL;
735 }
736 return(error);
737}
738
a9bb80e0 739/*
81b5c339 740 * nwfs_strategy(struct vnode *a_vp, struct bio *a_bio)
a9bb80e0
CP
741 */
742static int
743nwfs_strategy(struct vop_strategy_args *ap)
984263bc 744{
81b5c339
MD
745 struct bio *bio = ap->a_bio;
746 struct buf *bp = bio->bio_buf;
984263bc 747 int error = 0;
dadab5e9 748 struct thread *td = NULL;
984263bc
MD
749
750 NCPVNDEBUG("\n");
dadab5e9
MD
751 if ((bp->b_flags & B_ASYNC) == 0)
752 td = curthread; /* YYY dunno if this is legal */
984263bc
MD
753 /*
754 * If the op is asynchronous and an i/o daemon is waiting
755 * queue the request, wake it up and wait for completion
756 * otherwise just do it ourselves.
757 */
758 if ((bp->b_flags & B_ASYNC) == 0 )
81b5c339 759 error = nwfs_doio(ap->a_vp, bio, proc0.p_ucred, td);
984263bc
MD
760 return (error);
761}
762
a9bb80e0 763/*
54078292
MD
764 * nwfs_bmap(struct vnode *a_vp, off_t a_loffset, struct vnode **a_vpp,
765 * off_t *a_doffsetp, int *a_runp, int *a_runb)
a9bb80e0 766 */
984263bc 767static int
a9bb80e0 768nwfs_bmap(struct vop_bmap_args *ap)
984263bc
MD
769{
770 struct vnode *vp = ap->a_vp;
771
772 if (ap->a_vpp != NULL)
773 *ap->a_vpp = vp;
54078292
MD
774 if (ap->a_doffsetp != NULL)
775 *ap->a_doffsetp = ap->a_loffset;
984263bc
MD
776 if (ap->a_runp != NULL)
777 *ap->a_runp = 0;
778 if (ap->a_runb != NULL)
779 *ap->a_runb = 0;
780 return (0);
781}
782
783int
7648a732 784nwfs_nget(struct mount *mp, ncpfid fid, const struct nw_entry_info *fap,
984263bc
MD
785 struct vnode *dvp, struct vnode **vpp)
786{
787 int error;
788 struct nwnode *newnp;
789 struct vnode *vp;
790
791 *vpp = NULL;
792 error = nwfs_allocvp(mp, fid, &vp);
793 if (error)
794 return error;
795 newnp = VTONW(vp);
796 if (fap) {
797 newnp->n_attr = fap->attributes;
798 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
799 nwfs_attr_cacheenter(vp, fap);
800 }
801 if (dvp) {
802 newnp->n_parent = VTONW(dvp)->n_fid;
803 if ((newnp->n_flag & NNEW) && vp->v_type == VDIR) {
804 if ((dvp->v_flag & VROOT) == 0) {
805 newnp->n_refparent = 1;
806 vref(dvp); /* vhold */
807 }
808 }
809 } else {
810 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
086c1d7e 811 kprintf("new vnode '%s' borned without parent ?\n",newnp->n_name);
984263bc
MD
812 }
813 newnp->n_flag &= ~NNEW;
814 *vpp = vp;
815 return 0;
816}
817
818/*
819 * How to keep the brain busy ...
820 * Currently lookup routine can make two lookup for vnode. This can be
821 * avoided by reorg the code.
a9bb80e0 822 *
31bd717a
MD
823 * nwfs_lookup(struct vnode *a_dvp, struct vnode **a_vpp,
824 * struct componentname *a_cnp)
984263bc
MD
825 */
826int
e62afb5f 827nwfs_lookup(struct vop_old_lookup_args *ap)
984263bc
MD
828{
829 struct componentname *cnp = ap->a_cnp;
830 struct vnode *dvp = ap->a_dvp;
831 struct vnode **vpp = ap->a_vpp;
832 int flags = cnp->cn_flags;
833 struct vnode *vp;
834 struct nwmount *nmp;
835 struct mount *mp = dvp->v_mount;
836 struct nwnode *dnp, *npp;
837 struct nw_entry_info fattr, *fap;
838 ncpfid fid;
fad57d0e 839 int nameiop=cnp->cn_nameiop;
984263bc 840 int lockparent, wantparent, error = 0, notfound;
dadab5e9 841 struct thread *td = cnp->cn_td;
984263bc
MD
842 char _name[cnp->cn_namelen+1];
843 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
844 _name[cnp->cn_namelen]=0;
845
846 if (dvp->v_type != VDIR)
847 return (ENOTDIR);
2b69e610 848 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
086c1d7e 849 kprintf("nwfs_lookup: invalid '..'\n");
984263bc
MD
850 return EIO;
851 }
852
853 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
854 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
855
fad57d0e 856 if ((mp->mnt_flag & MNT_RDONLY) && nameiop != NAMEI_LOOKUP)
984263bc 857 return (EROFS);
87de5057 858 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred)))
984263bc 859 return (error);
2b69e610
MD
860 lockparent = flags & CNP_LOCKPARENT;
861 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
984263bc
MD
862 nmp = VFSTONWFS(mp);
863 dnp = VTONW(dvp);
864/*
086c1d7e 865kprintf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & CNP_ISDOTDOT);
984263bc
MD
866*/
867 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
2b69e610 868 (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
984263bc
MD
869 if (error)
870 return ENOENT;
871
984263bc
MD
872 error = 0;
873 *vpp = NULLVP;
874 fap = NULL;
2b69e610 875 if (flags & CNP_ISDOTDOT) {
984263bc
MD
876 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
877 fid = nmp->n_rootent;
878 fap = NULL;
879 notfound = 0;
880 } else {
dadab5e9 881 error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
984263bc
MD
882 if (error) {
883 return error;
884 }
885 fid = dnp->n_parent;
886 fap = &fattr;
887 /*np = *npp;*/
888 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
dadab5e9 889 0, NULL, fap, td, cnp->cn_cred);
984263bc
MD
890 }
891 } else {
892 fap = &fattr;
893 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
dadab5e9 894 fap, td, cnp->cn_cred);
984263bc
MD
895 fid.f_id = fap->dirEntNum;
896 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
897 fid.f_parent = dnp->n_fid.f_parent;
898 } else
899 fid.f_parent = dnp->n_fid.f_id;
900 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
901 }
902 if (notfound && notfound < 0x80 )
903 return (notfound); /* hard error */
904 if (notfound) { /* entry not found */
905 /* Handle RENAME or CREATE case... */
fad57d0e 906 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent) {
984263bc 907 if (!lockparent)
a11aaa81 908 vn_unlock(dvp);
984263bc
MD
909 return (EJUSTRETURN);
910 }
911 return ENOENT;
912 }/* else {
913 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
914 }*/
915 /* handle DELETE case ... */
fad57d0e 916 if (nameiop == NAMEI_DELETE) { /* delete last component */
87de5057 917 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred);
984263bc
MD
918 if (error) return (error);
919 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
597aea93 920 vref(dvp);
984263bc
MD
921 *vpp = dvp;
922 return 0;
923 }
924 error = nwfs_nget(mp, fid, fap, dvp, &vp);
925 if (error) return (error);
926 *vpp = vp;
a11aaa81 927 if (!lockparent) vn_unlock(dvp);
984263bc
MD
928 return (0);
929 }
fad57d0e 930 if (nameiop == NAMEI_RENAME && wantparent) {
87de5057 931 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred);
984263bc
MD
932 if (error) return (error);
933 if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
934 error = nwfs_nget(mp, fid, fap, dvp, &vp);
935 if (error) return (error);
936 *vpp = vp;
984263bc 937 if (!lockparent)
a11aaa81 938 vn_unlock(dvp);
984263bc
MD
939 return (0);
940 }
2b69e610 941 if (flags & CNP_ISDOTDOT) {
a11aaa81 942 vn_unlock(dvp); /* race to get the inode */
984263bc
MD
943 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
944 if (error) {
ca466bae 945 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
984263bc
MD
946 return (error);
947 }
ca466bae 948 if (lockparent && (error = vn_lock(dvp, LK_EXCLUSIVE))) {
984263bc
MD
949 vput(vp);
950 return (error);
951 }
952 *vpp = vp;
953 } else if (NWCMPF(&dnp->n_fid, &fid)) {
954 vref(dvp);
955 *vpp = dvp;
956 } else {
957 error = nwfs_nget(mp, fid, fap, dvp, &vp);
958 if (error) return (error);
959 *vpp = vp;
960 NCPVNDEBUG("lookup: getnewvp!\n");
fad57d0e 961 if (!lockparent)
a11aaa81 962 vn_unlock(dvp);
984263bc 963 }
fad57d0e
MD
964#if 0
965 /* XXX MOVE TO NREMOVE */
966 if ((cnp->cn_flags & CNP_MAKEENTRY)) {
984263bc 967 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
fad57d0e 968 /* XXX */
984263bc 969 }
fad57d0e 970#endif
984263bc
MD
971 return (0);
972}