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 1.30 2008/01/06 16:55:53 swildner 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 vop_ops nwfs_vnode_vops;
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, struct ucred *);
73 static int nwfs_root(struct mount *, struct vnode **);
74 static int nwfs_statfs(struct mount *, struct statfs *, struct ucred *);
75 static int nwfs_sync(struct mount *, int);
76 static int nwfs_unmount(struct mount *, int);
77 static int nwfs_init(struct vfsconf *vfsp);
78 static int nwfs_uninit(struct vfsconf *vfsp);
80 static struct vfsops nwfs_vfsops = {
81 .vfs_mount = nwfs_mount,
82 .vfs_unmount = nwfs_unmount,
83 .vfs_root = nwfs_root,
84 .vfs_statfs = nwfs_statfs,
85 .vfs_sync = nwfs_sync,
86 .vfs_init = nwfs_init,
87 .vfs_uninit = nwfs_uninit
91 VFS_SET(nwfs_vfsops, nwfs, VFCF_NETWORK);
92 MODULE_VERSION(nwfs, 1);
94 int nwfs_pbuf_freecnt = -1; /* start out unlimited */
95 static int nwfsid = 1;
98 nwfs_initnls(struct nwmount *nmp) {
101 #define COPY_TABLE(t,d) { \
103 error = copyin((t), pc, 256); \
107 (t) = pc; pc += 256; \
110 nmp->m.nls.opt |= NWHP_NLS | NWHP_DOS;
111 if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) {
112 nmp->m.nls.to_lower = ncp_defnls.to_lower;
113 nmp->m.nls.to_upper = ncp_defnls.to_upper;
114 nmp->m.nls.n2u = ncp_defnls.n2u;
115 nmp->m.nls.u2n = ncp_defnls.u2n;
118 MALLOC(pe, char *, 256 * 4, M_NWFSDATA, M_WAITOK);
121 COPY_TABLE(nmp->m.nls.to_lower, ncp_defnls.to_lower);
122 COPY_TABLE(nmp->m.nls.to_upper, ncp_defnls.to_upper);
123 COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u);
124 COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n);
127 kfree(pe, M_NWFSDATA);
133 * mp - path - addr in user space of mount point (ie /usr or whatever)
134 * data - addr in user space of mount params
137 nwfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
139 struct nwfs_args args; /* will hold data from mount request */
141 struct nwmount *nmp = NULL;
142 struct ncp_conn *conn = NULL;
143 struct ncp_handle *handle = NULL;
148 nwfs_printf("missing data argument\n");
151 if (mp->mnt_flag & MNT_UPDATE) {
152 nwfs_printf("MNT_UPDATE not implemented");
155 error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
158 if (args.version != NWFS_VERSION) {
159 nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
162 error = ncp_conn_getbyref(args.connRef,curthread,cred,NCPM_EXECUTE,&conn);
164 nwfs_printf("invalid connection reference %d\n",args.connRef);
167 error = ncp_conn_gethandle(conn, NULL, &handle);
169 nwfs_printf("can't get connection handle\n");
172 ncp_conn_unlock(conn,curthread); /* we keep the ref */
173 mp->mnt_stat.f_iosize = conn->buffer_size;
174 /* We must malloc our own mount info */
175 MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA, M_WAITOK|M_USE_RESERVE|M_ZERO);
176 mp->mnt_data = (qaddr_t)nmp;
179 nmp->n_id = nwfsid++;
181 nmp->m.file_mode = (nmp->m.file_mode &
182 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
183 nmp->m.dir_mode = (nmp->m.dir_mode &
184 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
185 if ((error = nwfs_initnls(nmp)) != 0) goto bad;
186 pc = mp->mnt_stat.f_mntfromname;
187 pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
190 pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
193 pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
196 strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
199 /* protect against invalid mount points */
200 nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
202 vfs_add_vnodeops(mp, &nwfs_vnode_vops, &mp->mnt_vn_norm_ops);
205 error = nwfs_root(mp, &vp);
209 * Lose the lock but keep the ref.
212 NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_sysref.refcnt);
216 kfree(nmp, M_NWFSDATA);
218 ncp_conn_puthandle(handle, NULL, 0);
222 /* Unmount the filesystem described by mp. */
224 nwfs_unmount(struct mount *mp, int mntflags)
226 struct nwmount *nmp = VFSTONWFS(mp);
227 struct ncp_conn *conn;
230 NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
232 if (mntflags & MNT_FORCE)
234 /* There is 1 extra root vnode reference from nwfs_mount(). */
235 error = vflush(mp, 1, flags);
238 conn = NWFSTOCONN(nmp);
239 ncp_conn_puthandle(nmp->connh,NULL,0);
240 if (ncp_conn_lock(conn, curthread, proc0.p_ucred, NCPM_WRITE | NCPM_EXECUTE) == 0) {
241 if(ncp_disconnect(conn))
242 ncp_conn_unlock(conn, curthread);
244 mp->mnt_data = (qaddr_t)0;
245 if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
246 kfree(nmp->m.nls.to_lower, M_NWFSDATA);
247 kfree(nmp, M_NWFSDATA);
248 mp->mnt_flag &= ~MNT_LOCAL;
252 /* Return locked vnode to root of a filesystem */
254 nwfs_root(struct mount *mp, struct vnode **vpp)
259 struct ncp_conn *conn;
260 struct nw_entry_info fattr;
261 struct thread *td = curthread; /* XXX */
266 KKASSERT(td->td_proc);
267 cred = td->td_proc->p_ucred;
270 conn = NWFSTOCONN(nmp);
272 *vpp = NWTOV(nmp->n_root);
273 while (vget(*vpp, LK_EXCLUSIVE) != 0) /* XXX */
277 error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol,
278 &nmp->n_rootent.f_id, td, cred);
282 error = ncp_get_namespaces(conn, vol, &nsf, td, cred);
285 if (nsf & NW_NSB_OS2) {
286 NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
287 if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
288 nmp->name_space = NW_NS_OS2;
289 nmp->m.nls.opt &= ~NWHP_DOS;
292 opt = nmp->m.nls.opt;
293 nsf = opt & (NWHP_UPPER | NWHP_LOWER);
294 if (opt & NWHP_DOS) {
295 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
296 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
297 } else if (nsf == 0) {
298 nmp->m.nls.opt |= NWHP_LOWER;
301 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
302 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
305 if (nmp->m.root_path[0]) {
306 nmp->m.root_path[0]--;
307 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
308 -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
310 NCPFATAL("Invalid root path specified\n");
313 nmp->n_rootent.f_parent = fattr.dirEntNum;
314 nmp->m.root_path[0]++;
315 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
316 -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
318 NCPFATAL("Invalid root path specified\n");
321 nmp->n_rootent.f_id = fattr.dirEntNum;
323 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
324 0, NULL, &fattr, td, cred);
326 NCPFATAL("Can't obtain volume info\n");
329 fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL));
330 nmp->n_rootent.f_parent = nmp->n_rootent.f_id;
332 error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp);
335 vsetflags(vp, VROOT);
337 if (nmp->m.root_path[0] == 0)
338 np->n_flag |= NVOLUME;
340 /* error = VOP_GETATTR(vp, &vattr);
343 NCPFATAL("Can't get root directory entry\n");
352 nwfs_init(struct vfsconf *vfsp)
356 kprintf("warning: nwfs module compiled without SMP support.");
359 nwfs_pbuf_freecnt = nswbuf / 2 + 1;
360 NCPVODEBUG("always happy to load!\n");
366 nwfs_uninit(struct vfsconf *vfsp)
370 NCPVODEBUG("unloaded\n");
378 nwfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred)
380 struct nwmount *nmp = VFSTONWFS(mp);
381 int error = 0, secsize;
382 struct nwnode *np = nmp->n_root;
383 struct ncp_volume_info vi;
385 if (np == NULL) return EINVAL;
386 error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume,
387 &vi, curthread, cred);
388 if (error) return error;
389 secsize = 512; /* XXX how to get real value ??? */
390 sbp->f_spare2=0; /* placeholder */
391 /* fundamental file system block size */
392 sbp->f_bsize = vi.sectors_per_block*secsize;
393 /* optimal transfer block size */
394 sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size;
395 /* total data blocks in file system */
396 sbp->f_blocks= vi.total_blocks;
397 /* free blocks in fs */
398 sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks;
399 /* free blocks avail to non-superuser */
400 sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks;
401 /* total file nodes in file system */
402 sbp->f_files = vi.total_dir_entries;
403 /* free file nodes in fs */
404 sbp->f_ffree = vi.available_dir_entries;
405 sbp->f_flags = 0; /* copy of mount exported flags */
406 if (sbp != &mp->mnt_stat) {
407 sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */
408 sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */
409 sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */
410 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
412 strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
417 * Flush out the buffer cache
421 nwfs_sync(struct mount *mp, int waitfor)
424 int error, allerror = 0;
426 * Force stale buffer cache information to be flushed.
429 for (vp = TAILQ_FIRST(&mp->mnt_nvnodelist);
431 vp = TAILQ_NEXT(vp, v_nmntvnodes)) {
433 * If the vnode that we are about to sync is no longer
434 * associated with this mount point, start over.
436 if (vp->v_mount != mp)
438 if (vn_islocked(vp) || RB_EMPTY(&vp->v_rbdirty_tree) ||
439 (waitfor & MNT_LAZY))
441 if (vget(vp, LK_EXCLUSIVE))
443 /* XXX vp may not be retained */
444 error = VOP_FSYNC(vp, waitfor, 0);