2 * Copyright (c) 1999, 2000 Boris Popov
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
32 * $FreeBSD: src/sys/nwfs/nwfs_vnops.c,v 1.6.2.3 2001/03/14 11:26:59 bp Exp $
33 * $DragonFly: src/sys/vfs/nwfs/nwfs_vnops.c,v 1.12 2004/04/24 04:32:05 drhodus Exp $
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
40 #include <sys/namei.h>
41 #include <sys/fcntl.h>
42 #include <sys/mount.h>
43 #include <sys/unistd.h>
44 #include <sys/vnode.h>
47 #include <vm/vm_extern.h>
48 #include <vm/vm_zone.h>
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>
57 #include "nwfs_node.h"
58 #include "nwfs_subr.h"
61 * Prototypes for NWFS vnode operations
63 static int nwfs_create(struct vop_create_args *);
64 static int nwfs_mknod(struct vop_mknod_args *);
65 static int nwfs_open(struct vop_open_args *);
66 static int nwfs_close(struct vop_close_args *);
67 static int nwfs_access(struct vop_access_args *);
68 static int nwfs_getattr(struct vop_getattr_args *);
69 static int nwfs_setattr(struct vop_setattr_args *);
70 static int nwfs_read(struct vop_read_args *);
71 static int nwfs_write(struct vop_write_args *);
72 static int nwfs_fsync(struct vop_fsync_args *);
73 static int nwfs_remove(struct vop_remove_args *);
74 static int nwfs_link(struct vop_link_args *);
75 static int nwfs_lookup(struct vop_lookup_args *);
76 static int nwfs_rename(struct vop_rename_args *);
77 static int nwfs_mkdir(struct vop_mkdir_args *);
78 static int nwfs_rmdir(struct vop_rmdir_args *);
79 static int nwfs_symlink(struct vop_symlink_args *);
80 static int nwfs_readdir(struct vop_readdir_args *);
81 static int nwfs_bmap(struct vop_bmap_args *);
82 static int nwfs_strategy(struct vop_strategy_args *);
83 static int nwfs_print(struct vop_print_args *);
84 static int nwfs_pathconf(struct vop_pathconf_args *ap);
86 /* Global vfs data structures for nwfs */
87 vop_t **nwfs_vnodeop_p;
88 static struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
89 { &vop_default_desc, (vop_t *) vop_defaultop },
90 { &vop_access_desc, (vop_t *) nwfs_access },
91 { &vop_bmap_desc, (vop_t *) nwfs_bmap },
92 { &vop_open_desc, (vop_t *) nwfs_open },
93 { &vop_close_desc, (vop_t *) nwfs_close },
94 { &vop_create_desc, (vop_t *) nwfs_create },
95 { &vop_fsync_desc, (vop_t *) nwfs_fsync },
96 { &vop_getattr_desc, (vop_t *) nwfs_getattr },
97 { &vop_getpages_desc, (vop_t *) nwfs_getpages },
98 { &vop_putpages_desc, (vop_t *) nwfs_putpages },
99 { &vop_ioctl_desc, (vop_t *) nwfs_ioctl },
100 { &vop_inactive_desc, (vop_t *) nwfs_inactive },
101 { &vop_islocked_desc, (vop_t *) vop_stdislocked },
102 { &vop_link_desc, (vop_t *) nwfs_link },
103 { &vop_lock_desc, (vop_t *) vop_stdlock },
104 { &vop_lookup_desc, (vop_t *) nwfs_lookup },
105 { &vop_mkdir_desc, (vop_t *) nwfs_mkdir },
106 { &vop_mknod_desc, (vop_t *) nwfs_mknod },
107 { &vop_pathconf_desc, (vop_t *) nwfs_pathconf },
108 { &vop_print_desc, (vop_t *) nwfs_print },
109 { &vop_read_desc, (vop_t *) nwfs_read },
110 { &vop_readdir_desc, (vop_t *) nwfs_readdir },
111 { &vop_reclaim_desc, (vop_t *) nwfs_reclaim },
112 { &vop_remove_desc, (vop_t *) nwfs_remove },
113 { &vop_rename_desc, (vop_t *) nwfs_rename },
114 { &vop_rmdir_desc, (vop_t *) nwfs_rmdir },
115 { &vop_setattr_desc, (vop_t *) nwfs_setattr },
116 { &vop_strategy_desc, (vop_t *) nwfs_strategy },
117 { &vop_symlink_desc, (vop_t *) nwfs_symlink },
118 { &vop_unlock_desc, (vop_t *) vop_stdunlock },
119 { &vop_write_desc, (vop_t *) nwfs_write },
122 static struct vnodeopv_desc nwfs_vnodeop_opv_desc =
123 { &nwfs_vnodeop_p, nwfs_vnodeop_entries };
125 VNODEOP_SET(nwfs_vnodeop_opv_desc);
128 * nwfs_access vnode op
129 * for now just return ok
131 * nwfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
132 * struct thread *a_td)
135 nwfs_access(struct vop_access_args *ap)
137 struct vnode *vp = ap->a_vp;
138 struct ucred *cred = ap->a_cred;
139 u_int mode = ap->a_mode;
140 struct nwmount *nmp = VTONWFS(vp);
144 if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
145 switch (vp->v_type) {
146 case VREG: case VDIR: case VLNK:
152 if (cred->cr_uid == 0)
154 if (cred->cr_uid != nmp->m.uid) {
156 if (!groupmember(nmp->m.gid, cred))
159 error = (((vp->v_type == VREG) ? nmp->m.file_mode : nmp->m.dir_mode) & mode) == mode ? 0 : EACCES;
165 * nwfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
166 * struct thread *a_td)
170 nwfs_open(struct vop_open_args *ap)
172 struct vnode *vp = ap->a_vp;
173 int mode = ap->a_mode;
174 struct nwnode *np = VTONW(vp);
175 struct ncp_open_info no;
176 struct nwmount *nmp = VTONWFS(vp);
180 NCPVNDEBUG("%s,%d\n",np->n_name, np->opened);
181 if (vp->v_type != VREG && vp->v_type != VDIR) {
182 NCPFATAL("open vtype = %d\n", vp->v_type);
185 if (vp->v_type == VDIR) return 0; /* nothing to do now */
186 if (np->n_flag & NMODIFIED) {
187 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
190 error = VOP_GETATTR(vp, &vattr, ap->a_td);
191 if (error) return (error);
192 np->n_mtime = vattr.va_mtime.tv_sec;
194 error = VOP_GETATTR(vp, &vattr, ap->a_td);
195 if (error) return (error);
196 if (np->n_mtime != vattr.va_mtime.tv_sec) {
197 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
199 np->n_mtime = vattr.va_mtime.tv_sec;
207 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
209 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
210 0, nwm, &no, ap->a_td, ap->a_cred);
215 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
216 nwm, &no, ap->a_td,ap->a_cred);
221 np->n_origfh = no.origfh;
228 * nwfs_close(struct vnodeop_desc *a_desc, struct vnode *a_vp, int a_fflag,
229 * struct ucred *a_cred, struct thread *a_td)
232 nwfs_close(struct vop_close_args *ap)
234 struct vnode *vp = ap->a_vp;
235 struct nwnode *np = VTONW(vp);
239 NCPVNDEBUG("name=%s,td=%p,c=%d\n",np->n_name,ap->a_td,np->opened);
241 if (vp->v_type == VDIR) return 0; /* nothing to do now */
243 lwkt_gettoken(&vlock, vp->v_interlock);
244 if (np->opened == 0) {
245 lwkt_reltoken(&vlock);
248 lwkt_reltoken(&vlock);
249 error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
250 lwkt_gettokref(&vlock);
251 if (np->opened == 0) {
252 lwkt_reltoken(&vlock);
255 if (--np->opened == 0) {
256 lwkt_reltoken(&vlock);
257 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
258 ap->a_td, proc0.p_ucred);
260 lwkt_reltoken(&vlock);
267 * nwfs_getattr call from vfs.
269 * nwfs_getattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
270 * struct thread *a_td)
273 nwfs_getattr(struct vop_getattr_args *ap)
275 struct vnode *vp = ap->a_vp;
276 struct nwnode *np = VTONW(vp);
277 struct vattr *va=ap->a_vap;
278 struct nwmount *nmp = VTONWFS(vp);
279 struct nw_entry_info fattr;
283 NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
284 error = nwfs_attr_cachelookup(vp,va);
285 if (!error) return 0;
286 NCPVNDEBUG("not in cache\n");
287 oldsize = np->n_size;
288 if (np->n_flag & NVOLUME) {
289 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
290 ap->a_td,proc0.p_ucred);
292 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
293 np->n_name, &fattr, ap->a_td, proc0.p_ucred);
296 NCPVNDEBUG("error %d\n", error);
299 nwfs_attr_cacheenter(vp, &fattr);
302 np->n_size = oldsize;
306 * nwfs_setattr call from vfs.
308 * nwfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
309 * struct thread *a_td)
312 nwfs_setattr(struct vop_setattr_args *ap)
314 struct vnode *vp = ap->a_vp;
315 struct nwnode *np = VTONW(vp);
316 struct vattr *vap = ap->a_vap;
321 if (vap->va_flags != VNOVAL)
324 * Disallow write attempts if the filesystem is mounted read-only.
326 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
327 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
328 vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
330 if (vap->va_size != VNOVAL) {
331 switch (vp->v_type) {
336 * Disallow write attempts if the filesystem is
339 if (vp->v_mount->mnt_flag & MNT_RDONLY)
341 vnode_pager_setsize(vp, (u_long)vap->va_size);
343 np->n_size = vap->va_size;
349 error = ncp_setattr(vp, vap, ap->a_cred, ap->a_td);
350 if (error && vap->va_size != VNOVAL) {
352 vnode_pager_setsize(vp, (u_long)tsize);
354 np->n_atime = 0; /* invalidate cache */
355 VOP_GETATTR(vp, vap, ap->a_td);
356 np->n_mtime = vap->va_mtime.tv_sec;
363 * nwfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
364 * struct ucred *a_cred)
367 nwfs_read(struct vop_read_args *ap)
369 struct vnode *vp = ap->a_vp;
370 struct uio *uio=ap->a_uio;
372 NCPVNDEBUG("nwfs_read:\n");
374 if (vp->v_type != VREG && vp->v_type != VDIR)
376 error = nwfs_readvnode(vp, uio, ap->a_cred);
381 * nwfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
382 * struct ucred *a_cred)
385 nwfs_write(struct vop_write_args *ap)
387 struct vnode *vp = ap->a_vp;
388 struct uio *uio = ap->a_uio;
391 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
393 if (vp->v_type != VREG)
395 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
400 * Create a regular file. On entry the directory to contain the file being
401 * created is locked. We must release before we return. We must also free
402 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
403 * only if the SAVESTART bit in cn_flags is clear on success.
405 * nwfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
406 * struct componentname *a_cnpl, struct vattr *a_vap)
409 nwfs_create(struct vop_create_args *ap)
411 struct vnode *dvp = ap->a_dvp;
412 struct vattr *vap = ap->a_vap;
413 struct vnode **vpp=ap->a_vpp;
414 struct componentname *cnp = ap->a_cnp;
415 struct vnode *vp = (struct vnode *)0;
416 int error = 0, fmode;
419 struct ncp_open_info no;
420 struct nwmount *nmp=VTONWFS(dvp);
426 if (vap->va_type == VSOCK)
428 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
431 fmode = AR_READ | AR_WRITE;
432 /* if (vap->va_vaflags & VA_EXCLUSIVE)
433 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
435 error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr,
436 OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
437 0, fmode, &no, cnp->cn_td, cnp->cn_cred);
439 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
440 fid.f_parent = VTONW(dvp)->n_fid.f_id;
441 fid.f_id = no.fattr.dirEntNum;
442 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
448 if (cnp->cn_flags & CNP_MAKEENTRY)
449 cache_enter(dvp, NCPNULL, vp, cnp);
455 * nwfs_remove call. It isn't possible to emulate UFS behaivour because
456 * NetWare doesn't allow delete/rename operations on an opened file.
458 * nwfs_remove(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
459 * struct vnode *a_vp, struct componentname *a_cnp)
462 nwfs_remove(struct vop_remove_args *ap)
464 struct vnode *vp = ap->a_vp;
465 struct vnode *dvp = ap->a_dvp;
466 struct componentname *cnp = ap->a_cnp;
467 struct nwnode *np = VTONW(vp);
468 struct nwmount *nmp = VTONWFS(vp);
471 if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) {
473 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
477 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
478 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
480 np->n_flag |= NSHOULDFREE;
481 else if (error == 0x899c)
488 * nwfs_file rename call
490 * nwfs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
491 * struct componentname *a_fcnp, struct vnode *a_tdvp,
492 * struct vnode *a_tvp, struct componentname *a_tcnp)
495 nwfs_rename(struct vop_rename_args *ap)
497 struct vnode *fvp = ap->a_fvp;
498 struct vnode *tvp = ap->a_tvp;
499 struct vnode *fdvp = ap->a_fdvp;
500 struct vnode *tdvp = ap->a_tdvp;
501 struct componentname *tcnp = ap->a_tcnp;
502 struct componentname *fcnp = ap->a_fcnp;
503 struct nwmount *nmp=VTONWFS(fvp);
504 u_int16_t oldtype = 6;
507 /* Check for cross-device rename */
508 if ((fvp->v_mount != tdvp->v_mount) ||
509 (tvp && (fvp->v_mount != tvp->v_mount))) {
514 if (tvp && tvp->v_usecount > 1) {
518 if (tvp && tvp != fvp) {
519 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
520 tcnp->cn_namelen, tcnp->cn_nameptr,
521 tcnp->cn_td, tcnp->cn_cred);
522 if (error == 0x899c) error = EACCES;
526 if (fvp->v_type == VDIR) {
527 oldtype |= NW_TYPE_SUBDIR;
528 } else if (fvp->v_type == VREG) {
529 oldtype |= NW_TYPE_FILE;
532 error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
533 oldtype, &nmp->m.nls,
534 VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
535 VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
536 tcnp->cn_td,tcnp->cn_cred);
540 if (fvp->v_type == VDIR) {
541 if (tvp != NULL && tvp->v_type == VDIR)
554 nwfs_attr_cacheremove(fdvp);
555 nwfs_attr_cacheremove(tdvp);
557 * Need to get rid of old vnodes, because netware will change
564 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
572 * nwfs hard link create call
573 * Netware filesystems don't know what links are.
575 * nwfs_link(struct vnode *a_tdvp, struct vnode *a_vp,
576 * struct componentname *a_cnp)
579 nwfs_link(struct vop_link_args *ap)
585 * nwfs_symlink link create call
586 * Netware filesystems don't know what symlinks are.
588 * nwfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
589 * struct componentname *a_cnp, struct vattr *a_vap,
593 nwfs_symlink(struct vop_symlink_args *ap)
598 static int nwfs_mknod(struct vop_mknod_args *ap)
606 * nwfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
607 * struct componentname *a_cnp, struct vattr *a_vap)
610 nwfs_mkdir(struct vop_mkdir_args *ap)
612 struct vnode *dvp = ap->a_dvp;
613 /* struct vattr *vap = ap->a_vap;*/
614 struct componentname *cnp = ap->a_cnp;
615 int len=cnp->cn_namelen;
616 struct ncp_open_info no;
618 struct vnode *newvp = (struct vnode *)0;
622 char *name=cnp->cn_nameptr;
624 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
627 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
630 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
631 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
632 &no, cnp->cn_td, cnp->cn_cred) != 0) {
638 fid.f_parent = VTONW(dvp)->n_fid.f_id;
639 fid.f_id = no.fattr.dirEntNum;
640 error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
643 newvp->v_type = VDIR;
651 * nwfs_remove directory call
653 * nwfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
654 * struct componentname *a_cnp)
657 nwfs_rmdir(struct vop_rmdir_args *ap)
659 struct vnode *vp = ap->a_vp;
660 struct vnode *dvp = ap->a_dvp;
661 struct componentname *cnp = ap->a_cnp;
662 struct nwnode *np = VTONW(vp);
663 struct nwmount *nmp = VTONWFS(vp);
664 struct nwnode *dnp = VTONW(dvp);
670 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
671 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
673 np->n_flag |= NSHOULDFREE;
674 else if (error == NWE_DIR_NOT_EMPTY)
676 dnp->n_flag |= NMODIFIED;
677 nwfs_attr_cacheremove(dvp);
686 * nwfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
687 * int *a_eofflag, u_long *a_cookies, int a_ncookies)
690 nwfs_readdir(struct vop_readdir_args *ap)
692 struct vnode *vp = ap->a_vp;
693 struct uio *uio = ap->a_uio;
696 if (vp->v_type != VDIR)
698 if (ap->a_ncookies) {
699 printf("nwfs_readdir: no support for cookies now...");
703 error = nwfs_readvnode(vp, uio, ap->a_cred);
708 * nwfs_fsync(struct vnodeop_desc *a_desc, struct vnode *a_vp,
709 * struct ucred *a_cred, int a_waitfor, struct thread *a_td)
713 nwfs_fsync(struct vop_fsync_args *ap)
715 /* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
720 * nwfs_print(struct vnode *a_vp)
724 nwfs_print(struct vop_print_args *ap)
726 struct vnode *vp = ap->a_vp;
727 struct nwnode *np = VTONW(vp);
729 printf("nwfs node: name = '%s', fid = %d, pfid = %d\n",
730 np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
735 * nwfs_pathconf(struct vnode *vp, int name, register_t *retval)
738 nwfs_pathconf(struct vop_pathconf_args *ap)
740 int name=ap->a_name, error=0;
741 register_t *retval=ap->a_retval;
748 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
751 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
760 * nwfs_strategy(struct buf *a_bp)
763 nwfs_strategy(struct vop_strategy_args *ap)
765 struct buf *bp=ap->a_bp;
767 struct thread *td = NULL;
770 if (bp->b_flags & B_PHYS)
771 panic("nwfs physio");
772 if ((bp->b_flags & B_ASYNC) == 0)
773 td = curthread; /* YYY dunno if this is legal */
775 * If the op is asynchronous and an i/o daemon is waiting
776 * queue the request, wake it up and wait for completion
777 * otherwise just do it ourselves.
779 if ((bp->b_flags & B_ASYNC) == 0 )
780 error = nwfs_doio(bp, proc0.p_ucred, td);
785 * nwfs_bmap(struct vnode *a_vp, daddr_t a_bn, struct vnode **a_vpp,
786 * daddr_t *a_bnp, int *a_runp, int *a_runb)
789 nwfs_bmap(struct vop_bmap_args *ap)
791 struct vnode *vp = ap->a_vp;
793 if (ap->a_vpp != NULL)
795 if (ap->a_bnp != NULL)
796 *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize);
797 if (ap->a_runp != NULL)
799 if (ap->a_runb != NULL)
805 nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
806 struct vnode *dvp, struct vnode **vpp)
809 struct nwnode *newnp;
813 error = nwfs_allocvp(mp, fid, &vp);
818 newnp->n_attr = fap->attributes;
819 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
820 nwfs_attr_cacheenter(vp, fap);
823 newnp->n_parent = VTONW(dvp)->n_fid;
824 if ((newnp->n_flag & NNEW) && vp->v_type == VDIR) {
825 if ((dvp->v_flag & VROOT) == 0) {
826 newnp->n_refparent = 1;
827 vref(dvp); /* vhold */
831 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
832 printf("new vnode '%s' borned without parent ?\n",newnp->n_name);
834 newnp->n_flag &= ~NNEW;
840 * How to keep the brain busy ...
841 * Currently lookup routine can make two lookup for vnode. This can be
842 * avoided by reorg the code.
844 * nwfs_lookup(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
845 * struct vnode **a_vpp, struct componentname *a_cnp)
848 nwfs_lookup(struct vop_lookup_args *ap)
850 struct componentname *cnp = ap->a_cnp;
851 struct vnode *dvp = ap->a_dvp;
852 struct vnode **vpp = ap->a_vpp;
853 int flags = cnp->cn_flags;
856 struct mount *mp = dvp->v_mount;
857 struct nwnode *dnp, *npp;
858 struct nw_entry_info fattr, *fap;
860 int nameiop=cnp->cn_nameiop, islastcn;
861 int lockparent, wantparent, error = 0, notfound;
862 struct thread *td = cnp->cn_td;
863 char _name[cnp->cn_namelen+1];
864 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
865 _name[cnp->cn_namelen]=0;
867 if (dvp->v_type != VDIR)
869 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
870 printf("nwfs_lookup: invalid '..'\n");
874 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
875 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
877 islastcn = flags & CNP_ISLASTCN;
878 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != NAMEI_LOOKUP))
880 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)))
882 lockparent = flags & CNP_LOCKPARENT;
883 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
887 printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & CNP_ISDOTDOT);
889 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
890 (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
894 error = cache_lookup(dvp, NCPNULL, vpp, NCPPNULL, cnp);
895 NCPVNDEBUG("cache_lookup returned %d\n",error);
898 if (error) { /* name was found */
904 if (dvp == vp) { /* lookup on current */
907 NCPVNDEBUG("cached '.'");
908 } else if (flags & CNP_ISDOTDOT) {
909 VOP_UNLOCK(dvp, NULL, 0, td); /* unlock parent */
910 error = vget(vp, NULL, LK_EXCLUSIVE, td);
911 if (!error && lockparent && islastcn)
912 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
914 error = vget(vp, NULL, LK_EXCLUSIVE, td);
915 if (!lockparent || error || !islastcn)
916 VOP_UNLOCK(dvp, NULL, 0, td);
919 if (vpid == vp->v_id) {
920 if (!VOP_GETATTR(vp, &vattr, td)
921 && vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) {
922 if (nameiop != NAMEI_LOOKUP && islastcn)
923 cnp->cn_flags |= CNP_SAVENAME;
924 NCPVNDEBUG("use cached vnode");
930 if (lockparent && dvp != vp && islastcn)
931 VOP_UNLOCK(dvp, NULL, 0, td);
933 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
938 /* not in cache, so ... */
942 if (flags & CNP_ISDOTDOT) {
943 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
944 fid = nmp->n_rootent;
948 error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
955 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
956 0, NULL, fap, td, cnp->cn_cred);
960 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
961 fap, td, cnp->cn_cred);
962 fid.f_id = fap->dirEntNum;
963 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
964 fid.f_parent = dnp->n_fid.f_parent;
966 fid.f_parent = dnp->n_fid.f_id;
967 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
969 if (notfound && notfound < 0x80 )
970 return (notfound); /* hard error */
971 if (notfound) { /* entry not found */
972 /* Handle RENAME or CREATE case... */
973 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent && islastcn) {
974 cnp->cn_flags |= CNP_SAVENAME;
976 VOP_UNLOCK(dvp, NULL, 0, td);
977 return (EJUSTRETURN);
981 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
983 /* handle DELETE case ... */
984 if (nameiop == NAMEI_DELETE && islastcn) { /* delete last component */
985 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
986 if (error) return (error);
987 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
992 error = nwfs_nget(mp, fid, fap, dvp, &vp);
993 if (error) return (error);
995 cnp->cn_flags |= CNP_SAVENAME; /* I free it later */
996 if (!lockparent) VOP_UNLOCK(dvp, NULL, 0, td);
999 if (nameiop == NAMEI_RENAME && islastcn && wantparent) {
1000 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
1001 if (error) return (error);
1002 if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
1003 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1004 if (error) return (error);
1006 cnp->cn_flags |= CNP_SAVENAME;
1008 VOP_UNLOCK(dvp, NULL, 0, td);
1011 if (flags & CNP_ISDOTDOT) {
1012 VOP_UNLOCK(dvp, NULL, 0, td); /* race to get the inode */
1013 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
1015 vn_lock(dvp, NULL, LK_EXCLUSIVE | LK_RETRY, td);
1018 if (lockparent && islastcn &&
1019 (error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td))) {
1024 } else if (NWCMPF(&dnp->n_fid, &fid)) {
1028 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1029 if (error) return (error);
1031 NCPVNDEBUG("lookup: getnewvp!\n");
1032 if (!lockparent || !islastcn)
1033 VOP_UNLOCK(dvp, NULL, 0, td);
1035 if ((cnp->cn_flags & CNP_MAKEENTRY)/* && !islastcn*/) {
1036 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
1037 cache_enter(dvp, NCPNULL, *vpp, cnp);