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 1.17 2004/10/07 10:03:04 dillon 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 struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
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 },
123 * nwfs_access vnode op
124 * for now just return ok
126 * nwfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
127 * struct thread *a_td)
130 nwfs_access(struct vop_access_args *ap)
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);
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:
147 if (cred->cr_uid == 0)
149 if (cred->cr_uid != nmp->m.uid) {
151 if (!groupmember(nmp->m.gid, cred))
154 error = (((vp->v_type == VREG) ? nmp->m.file_mode : nmp->m.dir_mode) & mode) == mode ? 0 : EACCES;
160 * nwfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
161 * struct thread *a_td)
165 nwfs_open(struct vop_open_args *ap)
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);
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);
180 if (vp->v_type == VDIR) return 0; /* nothing to do now */
181 if (np->n_flag & NMODIFIED) {
182 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
185 error = VOP_GETATTR(vp, &vattr, ap->a_td);
186 if (error) return (error);
187 np->n_mtime = vattr.va_mtime.tv_sec;
189 error = VOP_GETATTR(vp, &vattr, ap->a_td);
190 if (error) return (error);
191 if (np->n_mtime != vattr.va_mtime.tv_sec) {
192 if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR)
194 np->n_mtime = vattr.va_mtime.tv_sec;
202 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
204 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
205 0, nwm, &no, ap->a_td, ap->a_cred);
210 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
211 nwm, &no, ap->a_td,ap->a_cred);
216 np->n_origfh = no.origfh;
223 * nwfs_close(struct vnodeop_desc *a_desc, struct vnode *a_vp, int a_fflag,
224 * struct ucred *a_cred, struct thread *a_td)
227 nwfs_close(struct vop_close_args *ap)
229 struct vnode *vp = ap->a_vp;
230 struct nwnode *np = VTONW(vp);
234 NCPVNDEBUG("name=%s,td=%p,c=%d\n",np->n_name,ap->a_td,np->opened);
236 if (vp->v_type == VDIR) return 0; /* nothing to do now */
238 lwkt_gettoken(&vlock, vp->v_interlock);
239 if (np->opened == 0) {
240 lwkt_reltoken(&vlock);
243 lwkt_reltoken(&vlock);
244 error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
245 lwkt_gettokref(&vlock);
246 if (np->opened == 0) {
247 lwkt_reltoken(&vlock);
250 if (--np->opened == 0) {
251 lwkt_reltoken(&vlock);
252 error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
253 ap->a_td, proc0.p_ucred);
255 lwkt_reltoken(&vlock);
262 * nwfs_getattr call from vfs.
264 * nwfs_getattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
265 * struct thread *a_td)
268 nwfs_getattr(struct vop_getattr_args *ap)
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;
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,
285 ap->a_td,proc0.p_ucred);
287 error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
288 np->n_name, &fattr, ap->a_td, proc0.p_ucred);
291 NCPVNDEBUG("error %d\n", error);
294 nwfs_attr_cacheenter(vp, &fattr);
297 np->n_size = oldsize;
301 * nwfs_setattr call from vfs.
303 * nwfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
304 * struct thread *a_td)
307 nwfs_setattr(struct vop_setattr_args *ap)
309 struct vnode *vp = ap->a_vp;
310 struct nwnode *np = VTONW(vp);
311 struct vattr *vap = ap->a_vap;
316 if (vap->va_flags != VNOVAL)
319 * Disallow write attempts if the filesystem is mounted read-only.
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))
325 if (vap->va_size != VNOVAL) {
326 switch (vp->v_type) {
331 * Disallow write attempts if the filesystem is
334 if (vp->v_mount->mnt_flag & MNT_RDONLY)
336 vnode_pager_setsize(vp, (u_long)vap->va_size);
338 np->n_size = vap->va_size;
344 error = ncp_setattr(vp, vap, ap->a_cred, ap->a_td);
345 if (error && vap->va_size != VNOVAL) {
347 vnode_pager_setsize(vp, (u_long)tsize);
349 np->n_atime = 0; /* invalidate cache */
350 VOP_GETATTR(vp, vap, ap->a_td);
351 np->n_mtime = vap->va_mtime.tv_sec;
358 * nwfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
359 * struct ucred *a_cred)
362 nwfs_read(struct vop_read_args *ap)
364 struct vnode *vp = ap->a_vp;
365 struct uio *uio=ap->a_uio;
367 NCPVNDEBUG("nwfs_read:\n");
369 if (vp->v_type != VREG && vp->v_type != VDIR)
371 error = nwfs_readvnode(vp, uio, ap->a_cred);
376 * nwfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
377 * struct ucred *a_cred)
380 nwfs_write(struct vop_write_args *ap)
382 struct vnode *vp = ap->a_vp;
383 struct uio *uio = ap->a_uio;
386 NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);
388 if (vp->v_type != VREG)
390 error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
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.
400 * nwfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
401 * struct componentname *a_cnpl, struct vattr *a_vap)
404 nwfs_create(struct vop_create_args *ap)
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;
414 struct ncp_open_info no;
415 struct nwmount *nmp=VTONWFS(dvp);
421 if (vap->va_type == VSOCK)
423 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
426 fmode = AR_READ | AR_WRITE;
427 /* if (vap->va_vaflags & VA_EXCLUSIVE)
428 fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
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,
432 0, fmode, &no, cnp->cn_td, cnp->cn_cred);
434 error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
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);
443 if (cnp->cn_flags & CNP_MAKEENTRY)
444 cache_enter(dvp, vp, cnp);
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.
453 * nwfs_remove(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
454 * struct vnode *a_vp, struct componentname *a_cnp)
457 nwfs_remove(struct vop_remove_args *ap)
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);
466 if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) {
468 } else if (!ncp_conn_valid(NWFSTOCONN(nmp))) {
472 error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
473 cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
475 np->n_flag |= NSHOULDFREE;
476 else if (error == 0x899c)
483 * nwfs_file rename call
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)
490 nwfs_rename(struct vop_rename_args *ap)
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;
502 /* Check for cross-device rename */
503 if ((fvp->v_mount != tdvp->v_mount) ||
504 (tvp && (fvp->v_mount != tvp->v_mount))) {
509 if (tvp && tvp->v_usecount > 1) {
513 if (tvp && tvp != fvp) {
514 error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
515 tcnp->cn_namelen, tcnp->cn_nameptr,
516 tcnp->cn_td, tcnp->cn_cred);
517 if (error == 0x899c) error = EACCES;
521 if (fvp->v_type == VDIR) {
522 oldtype |= NW_TYPE_SUBDIR;
523 } else if (fvp->v_type == VREG) {
524 oldtype |= NW_TYPE_FILE;
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,
531 tcnp->cn_td,tcnp->cn_cred);
535 if (fvp->v_type == VDIR) {
536 if (tvp != NULL && tvp->v_type == VDIR)
549 nwfs_attr_cacheremove(fdvp);
550 nwfs_attr_cacheremove(tdvp);
552 * Need to get rid of old vnodes, because netware will change
559 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
567 * nwfs hard link create call
568 * Netware filesystems don't know what links are.
570 * nwfs_link(struct vnode *a_tdvp, struct vnode *a_vp,
571 * struct componentname *a_cnp)
574 nwfs_link(struct vop_link_args *ap)
580 * nwfs_symlink link create call
581 * Netware filesystems don't know what symlinks are.
583 * nwfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
584 * struct componentname *a_cnp, struct vattr *a_vap,
588 nwfs_symlink(struct vop_symlink_args *ap)
593 static int nwfs_mknod(struct vop_mknod_args *ap)
601 * nwfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
602 * struct componentname *a_cnp, struct vattr *a_vap)
605 nwfs_mkdir(struct vop_mkdir_args *ap)
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;
613 struct vnode *newvp = (struct vnode *)0;
617 char *name=cnp->cn_nameptr;
619 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) {
622 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
625 if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
626 cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff,
627 &no, cnp->cn_td, cnp->cn_cred) != 0) {
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);
638 newvp->v_type = VDIR;
646 * nwfs_remove directory call
648 * nwfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
649 * struct componentname *a_cnp)
652 nwfs_rmdir(struct vop_rmdir_args *ap)
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);
665 error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
666 cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_td,cnp->cn_cred);
668 np->n_flag |= NSHOULDFREE;
669 else if (error == NWE_DIR_NOT_EMPTY)
671 dnp->n_flag |= NMODIFIED;
672 nwfs_attr_cacheremove(dvp);
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)
685 nwfs_readdir(struct vop_readdir_args *ap)
687 struct vnode *vp = ap->a_vp;
688 struct uio *uio = ap->a_uio;
691 if (vp->v_type != VDIR)
693 if (ap->a_ncookies) {
694 printf("nwfs_readdir: no support for cookies now...");
698 error = nwfs_readvnode(vp, uio, ap->a_cred);
703 * nwfs_fsync(struct vnodeop_desc *a_desc, struct vnode *a_vp,
704 * struct ucred *a_cred, int a_waitfor, struct thread *a_td)
708 nwfs_fsync(struct vop_fsync_args *ap)
710 /* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
715 * nwfs_print(struct vnode *a_vp)
719 nwfs_print(struct vop_print_args *ap)
721 struct vnode *vp = ap->a_vp;
722 struct nwnode *np = VTONW(vp);
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);
730 * nwfs_pathconf(struct vnode *vp, int name, register_t *retval)
733 nwfs_pathconf(struct vop_pathconf_args *ap)
735 int name=ap->a_name, error=0;
736 register_t *retval=ap->a_retval;
743 *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
746 *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
755 * nwfs_strategy(struct buf *a_bp)
758 nwfs_strategy(struct vop_strategy_args *ap)
760 struct buf *bp=ap->a_bp;
762 struct thread *td = NULL;
765 if (bp->b_flags & B_PHYS)
766 panic("nwfs physio");
767 if ((bp->b_flags & B_ASYNC) == 0)
768 td = curthread; /* YYY dunno if this is legal */
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.
774 if ((bp->b_flags & B_ASYNC) == 0 )
775 error = nwfs_doio(bp, proc0.p_ucred, td);
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)
784 nwfs_bmap(struct vop_bmap_args *ap)
786 struct vnode *vp = ap->a_vp;
788 if (ap->a_vpp != NULL)
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)
794 if (ap->a_runb != NULL)
800 nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
801 struct vnode *dvp, struct vnode **vpp)
804 struct nwnode *newnp;
808 error = nwfs_allocvp(mp, fid, &vp);
813 newnp->n_attr = fap->attributes;
814 vp->v_type = newnp->n_attr & aDIR ? VDIR : VREG;
815 nwfs_attr_cacheenter(vp, fap);
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 */
826 if ((newnp->n_flag & NNEW) && vp->v_type == VREG)
827 printf("new vnode '%s' borned without parent ?\n",newnp->n_name);
829 newnp->n_flag &= ~NNEW;
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.
839 * nwfs_lookup(struct vnodeop_desc *a_desc, struct vnode *a_dvp,
840 * struct vnode **a_vpp, struct componentname *a_cnp)
843 nwfs_lookup(struct vop_lookup_args *ap)
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;
851 struct mount *mp = dvp->v_mount;
852 struct nwnode *dnp, *npp;
853 struct nw_entry_info fattr, *fap;
855 int nameiop=cnp->cn_nameiop, islastcn;
856 int lockparent, wantparent, error = 0, notfound;
857 struct thread *td = cnp->cn_td;
858 char _name[cnp->cn_namelen+1];
859 bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
860 _name[cnp->cn_namelen]=0;
862 if (dvp->v_type != VDIR)
864 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
865 printf("nwfs_lookup: invalid '..'\n");
869 NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
870 VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
872 islastcn = flags & CNP_ISLASTCN;
873 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != NAMEI_LOOKUP))
875 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)))
877 lockparent = flags & CNP_LOCKPARENT;
878 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
882 printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & CNP_ISDOTDOT);
884 error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
885 (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
889 error = cache_lookup(dvp, vpp, cnp);
890 NCPVNDEBUG("cache_lookup returned %d\n",error);
893 if (error) { /* name was found */
899 if (dvp == vp) { /* lookup on current */
900 /* vp already ref'd */
902 NCPVNDEBUG("cached '.'");
903 } else if (flags & CNP_ISDOTDOT) {
904 VOP_UNLOCK(dvp, NULL, 0, td); /* unlock parent */
905 error = vget(vp, NULL, LK_EXCLUSIVE, td);
907 if (!error && lockparent && islastcn)
908 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
910 error = vget(vp, NULL, LK_EXCLUSIVE, td);
912 if (!lockparent || error || !islastcn)
913 VOP_UNLOCK(dvp, NULL, 0, td);
916 if (vpid == vp->v_id) {
917 if (!VOP_GETATTR(vp, &vattr, td)
918 && vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) {
919 if (nameiop != NAMEI_LOOKUP && islastcn)
920 cnp->cn_flags |= CNP_SAVENAME;
921 NCPVNDEBUG("use cached vnode");
927 if (lockparent && dvp != vp && islastcn)
928 VOP_UNLOCK(dvp, NULL, 0, td);
930 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td);
935 /* not in cache, so ... */
939 if (flags & CNP_ISDOTDOT) {
940 if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
941 fid = nmp->n_rootent;
945 error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
952 notfound = ncp_obtain_info(nmp, npp->n_dosfid,
953 0, NULL, fap, td, cnp->cn_cred);
957 notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
958 fap, td, cnp->cn_cred);
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;
963 fid.f_parent = dnp->n_fid.f_id;
964 NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
966 if (notfound && notfound < 0x80 )
967 return (notfound); /* hard error */
968 if (notfound) { /* entry not found */
969 /* Handle RENAME or CREATE case... */
970 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent && islastcn) {
971 cnp->cn_flags |= CNP_SAVENAME;
973 VOP_UNLOCK(dvp, NULL, 0, td);
974 return (EJUSTRETURN);
978 NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
980 /* handle DELETE case ... */
981 if (nameiop == NAMEI_DELETE && islastcn) { /* delete last component */
982 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
983 if (error) return (error);
984 if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
989 error = nwfs_nget(mp, fid, fap, dvp, &vp);
990 if (error) return (error);
992 cnp->cn_flags |= CNP_SAVENAME; /* I free it later */
993 if (!lockparent) VOP_UNLOCK(dvp, NULL, 0, td);
996 if (nameiop == NAMEI_RENAME && islastcn && wantparent) {
997 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_td);
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);
1003 cnp->cn_flags |= CNP_SAVENAME;
1005 VOP_UNLOCK(dvp, NULL, 0, td);
1008 if (flags & CNP_ISDOTDOT) {
1009 VOP_UNLOCK(dvp, NULL, 0, td); /* race to get the inode */
1010 error = nwfs_nget(mp, fid, NULL, NULL, &vp);
1012 vn_lock(dvp, NULL, LK_EXCLUSIVE | LK_RETRY, td);
1015 if (lockparent && islastcn &&
1016 (error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td))) {
1021 } else if (NWCMPF(&dnp->n_fid, &fid)) {
1025 error = nwfs_nget(mp, fid, fap, dvp, &vp);
1026 if (error) return (error);
1028 NCPVNDEBUG("lookup: getnewvp!\n");
1029 if (!lockparent || !islastcn)
1030 VOP_UNLOCK(dvp, NULL, 0, td);
1032 if ((cnp->cn_flags & CNP_MAKEENTRY)/* && !islastcn*/) {
1033 VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
1034 cache_enter(dvp, *vpp, cnp);