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_vfsops.c,v 1.6.2.6 2001/10/25 19:18:54 dillon Exp $
33 * $DragonFly: src/sys/vfs/nwfs/nwfs_vfsops.c,v 1.11 2004/08/17 18:57:35 dillon Exp $
37 #error "NWFS requires NCP protocol"
40 #include <sys/param.h>
41 #include <sys/systm.h>
43 #include <sys/kernel.h>
44 #include <sys/sysctl.h>
45 #include <sys/vnode.h>
46 #include <sys/mount.h>
48 #include <sys/malloc.h>
51 #include <netproto/ncp/ncp.h>
52 #include <netproto/ncp/ncp_conn.h>
53 #include <netproto/ncp/ncp_subr.h>
54 #include <netproto/ncp/ncp_ncp.h>
55 #include <netproto/ncp/ncp_nls.h>
58 #include "nwfs_node.h"
59 #include "nwfs_subr.h"
61 extern struct vnodeopv_entry_desc nwfs_vnodeop_entries[];
63 int nwfs_debuglevel = 0;
65 static int nwfs_version = NWFS_VERSION;
67 SYSCTL_DECL(_vfs_nwfs);
68 SYSCTL_NODE(_vfs, OID_AUTO, nwfs, CTLFLAG_RW, 0, "Netware file system");
69 SYSCTL_INT(_vfs_nwfs, OID_AUTO, version, CTLFLAG_RD, &nwfs_version, 0, "");
70 SYSCTL_INT(_vfs_nwfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nwfs_debuglevel, 0, "");
72 static int nwfs_mount(struct mount *, char *, caddr_t,
73 struct nameidata *, struct thread *);
74 static int nwfs_quotactl(struct mount *, int, uid_t, caddr_t, struct thread *);
75 static int nwfs_root(struct mount *, struct vnode **);
76 static int nwfs_start(struct mount *, int, struct thread *);
77 static int nwfs_statfs(struct mount *, struct statfs *, struct thread *);
78 static int nwfs_sync(struct mount *, int, struct thread *);
79 static int nwfs_unmount(struct mount *, int, struct thread *);
80 static int nwfs_init(struct vfsconf *vfsp);
81 static int nwfs_uninit(struct vfsconf *vfsp);
83 static struct vfsops nwfs_vfsops = {
92 vfs_stdfhtovp, /* shouldn't happen */
94 vfs_stdvptofh, /* shouldn't happen */
101 VFS_SET(nwfs_vfsops, nwfs, VFCF_NETWORK);
103 int nwfs_pbuf_freecnt = -1; /* start out unlimited */
104 static int nwfsid = 1;
107 nwfs_initnls(struct nwmount *nmp) {
110 #define COPY_TABLE(t,d) { \
112 error = copyin((t), pc, 256); \
116 (t) = pc; pc += 256; \
119 nmp->m.nls.opt |= NWHP_NLS | NWHP_DOS;
120 if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) {
121 nmp->m.nls.to_lower = ncp_defnls.to_lower;
122 nmp->m.nls.to_upper = ncp_defnls.to_upper;
123 nmp->m.nls.n2u = ncp_defnls.n2u;
124 nmp->m.nls.u2n = ncp_defnls.u2n;
127 MALLOC(pe, char *, 256 * 4, M_NWFSDATA, M_WAITOK);
130 COPY_TABLE(nmp->m.nls.to_lower, ncp_defnls.to_lower);
131 COPY_TABLE(nmp->m.nls.to_upper, ncp_defnls.to_upper);
132 COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u);
133 COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n);
136 free(pe, M_NWFSDATA);
142 * mp - path - addr in user space of mount point (ie /usr or whatever)
143 * data - addr in user space of mount params
146 nwfs_mount(struct mount *mp, char *path, caddr_t data,
147 struct nameidata *ndp, struct thread *td)
149 struct nwfs_args args; /* will hold data from mount request */
152 struct nwmount *nmp = NULL;
153 struct ncp_conn *conn = NULL;
154 struct ncp_handle *handle = NULL;
159 KKASSERT(td->td_proc);
160 cred = td->td_proc->p_ucred;
163 nwfs_printf("missing data argument\n");
166 if (mp->mnt_flag & MNT_UPDATE) {
167 nwfs_printf("MNT_UPDATE not implemented");
170 error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
173 if (args.version != NWFS_VERSION) {
174 nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
177 error = ncp_conn_getbyref(args.connRef,td,cred,NCPM_EXECUTE,&conn);
179 nwfs_printf("invalid connection refernce %d\n",args.connRef);
182 error = ncp_conn_gethandle(conn, NULL, &handle);
184 nwfs_printf("can't get connection handle\n");
187 ncp_conn_unlock(conn,td); /* we keep the ref */
188 mp->mnt_stat.f_iosize = conn->buffer_size;
189 /* We must malloc our own mount info */
190 MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA, M_WAITOK|M_USE_RESERVE|M_ZERO);
192 nwfs_printf("could not alloc nwmount\n");
196 mp->mnt_data = (qaddr_t)nmp;
199 nmp->n_id = nwfsid++;
201 nmp->m.file_mode = (nmp->m.file_mode &
202 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
203 nmp->m.dir_mode = (nmp->m.dir_mode &
204 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
205 if ((error = nwfs_initnls(nmp)) != 0) goto bad;
206 (void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
207 bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
208 pc = mp->mnt_stat.f_mntfromname;
209 pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
212 pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
215 pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
218 strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
221 /* protect against invalid mount points */
222 nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
224 vfs_add_vnodeops(&mp->mnt_vn_ops, nwfs_vnodeop_entries);
227 error = nwfs_root(mp, &vp);
231 * Lose the lock but keep the ref.
233 VOP_UNLOCK(vp, NULL, 0, curthread);
234 NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_usecount);
238 free(nmp, M_NWFSDATA);
240 ncp_conn_puthandle(handle, NULL, 0);
244 /* Unmount the filesystem described by mp. */
246 nwfs_unmount(struct mount *mp, int mntflags, struct thread *td)
248 struct nwmount *nmp = VFSTONWFS(mp);
249 struct ncp_conn *conn;
253 KKASSERT(td->td_proc);
254 cred = td->td_proc->p_ucred;
256 NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
258 if (mntflags & MNT_FORCE)
260 /* There is 1 extra root vnode reference from nwfs_mount(). */
261 error = vflush(mp, 1, flags);
264 conn = NWFSTOCONN(nmp);
265 ncp_conn_puthandle(nmp->connh,NULL,0);
266 if (ncp_conn_lock(conn,td,cred,NCPM_WRITE | NCPM_EXECUTE) == 0) {
267 if(ncp_disconnect(conn))
268 ncp_conn_unlock(conn,td);
270 mp->mnt_data = (qaddr_t)0;
271 if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
272 free(nmp->m.nls.to_lower, M_NWFSDATA);
273 free(nmp, M_NWFSDATA);
274 mp->mnt_flag &= ~MNT_LOCAL;
278 /* Return locked vnode to root of a filesystem */
280 nwfs_root(struct mount *mp, struct vnode **vpp)
285 struct ncp_conn *conn;
286 struct nw_entry_info fattr;
287 struct thread *td = curthread; /* XXX */
292 KKASSERT(td->td_proc);
293 cred = td->td_proc->p_ucred;
296 conn = NWFSTOCONN(nmp);
298 *vpp = NWTOV(nmp->n_root);
299 while (vget(*vpp, NULL, LK_EXCLUSIVE, curthread) != 0) /* XXX */
303 error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol,
304 &nmp->n_rootent.f_id, td, cred);
308 error = ncp_get_namespaces(conn, vol, &nsf, td, cred);
311 if (nsf & NW_NSB_OS2) {
312 NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
313 if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
314 nmp->name_space = NW_NS_OS2;
315 nmp->m.nls.opt &= ~NWHP_DOS;
318 opt = nmp->m.nls.opt;
319 nsf = opt & (NWHP_UPPER | NWHP_LOWER);
320 if (opt & NWHP_DOS) {
321 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
322 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
323 } else if (nsf == 0) {
324 nmp->m.nls.opt |= NWHP_LOWER;
327 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
328 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
331 if (nmp->m.root_path[0]) {
332 nmp->m.root_path[0]--;
333 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
334 -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
336 NCPFATAL("Invalid root path specified\n");
339 nmp->n_rootent.f_parent = fattr.dirEntNum;
340 nmp->m.root_path[0]++;
341 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
342 -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
344 NCPFATAL("Invalid root path specified\n");
347 nmp->n_rootent.f_id = fattr.dirEntNum;
349 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
350 0, NULL, &fattr, td, cred);
352 NCPFATAL("Can't obtain volume info\n");
355 fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL));
356 nmp->n_rootent.f_parent = nmp->n_rootent.f_id;
358 error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp);
363 if (nmp->m.root_path[0] == 0)
364 np->n_flag |= NVOLUME;
366 /* error = VOP_GETATTR(vp, &vattr, cred, td);
369 NCPFATAL("Can't get root directory entry\n");
377 * Vfs start routine, a no-op.
381 nwfs_start(struct mount *mp, int flags, struct thread *td)
383 NCPVODEBUG("flags=%04x\n",flags);
388 * Do operations associated with quotas, not supported
392 nwfs_quotactl(struct mount *mp, int cmd, uid_t uid, caddr_t arg,
395 NCPVODEBUG("return EOPNOTSUPP\n");
401 nwfs_init(struct vfsconf *vfsp)
405 int olen, ncpu, plen, error;
409 error = kernel_sysctl(name, 2, &ncpu, &olen, NULL, 0, &plen);
410 if (error == 0 && ncpu > 1)
411 printf("warning: nwfs module compiled without SMP support.");
414 nwfs_pbuf_freecnt = nswbuf / 2 + 1;
415 NCPVODEBUG("always happy to load!\n");
421 nwfs_uninit(struct vfsconf *vfsp)
425 NCPVODEBUG("unloaded\n");
433 nwfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td)
435 struct nwmount *nmp = VFSTONWFS(mp);
436 int error = 0, secsize;
437 struct nwnode *np = nmp->n_root;
438 struct ncp_volume_info vi;
441 KKASSERT(td->td_proc);
442 cred = td->td_proc->p_ucred;
444 if (np == NULL) return EINVAL;
445 error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume, &vi,td,cred);
446 if (error) return error;
447 secsize = 512; /* XXX how to get real value ??? */
448 sbp->f_spare2=0; /* placeholder */
449 /* fundamental file system block size */
450 sbp->f_bsize = vi.sectors_per_block*secsize;
451 /* optimal transfer block size */
452 sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size;
453 /* total data blocks in file system */
454 sbp->f_blocks= vi.total_blocks;
455 /* free blocks in fs */
456 sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks;
457 /* free blocks avail to non-superuser */
458 sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks;
459 /* total file nodes in file system */
460 sbp->f_files = vi.total_dir_entries;
461 /* free file nodes in fs */
462 sbp->f_ffree = vi.available_dir_entries;
463 sbp->f_flags = 0; /* copy of mount exported flags */
464 if (sbp != &mp->mnt_stat) {
465 sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */
466 sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */
467 sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */
468 bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
469 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
471 strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
476 * Flush out the buffer cache
480 nwfs_sync(struct mount *mp, int waitfor, struct thread *td)
483 int error, allerror = 0;
485 * Force stale buffer cache information to be flushed.
488 for (vp = TAILQ_FIRST(&mp->mnt_nvnodelist);
490 vp = TAILQ_NEXT(vp, v_nmntvnodes)) {
491 if (vp->v_flag & VPLACEMARKER) /* ZZZ */
494 * If the vnode that we are about to sync is no longer
495 * associated with this mount point, start over.
497 if (vp->v_mount != mp)
499 if (VOP_ISLOCKED(vp, NULL) || TAILQ_EMPTY(&vp->v_dirtyblkhd) ||
502 if (vget(vp, NULL, LK_EXCLUSIVE, td))
504 error = VOP_FSYNC(vp, waitfor, td);