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 1.10 2004/04/22 17:56:44 cpressey 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 int nwfs_debuglevel = 0;
63 static int nwfs_version = NWFS_VERSION;
65 SYSCTL_DECL(_vfs_nwfs);
66 SYSCTL_NODE(_vfs, OID_AUTO, nwfs, CTLFLAG_RW, 0, "Netware file system");
67 SYSCTL_INT(_vfs_nwfs, OID_AUTO, version, CTLFLAG_RD, &nwfs_version, 0, "");
68 SYSCTL_INT(_vfs_nwfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nwfs_debuglevel, 0, "");
70 static int nwfs_mount(struct mount *, char *, caddr_t,
71 struct nameidata *, struct thread *);
72 static int nwfs_quotactl(struct mount *, int, uid_t, caddr_t, struct thread *);
73 static int nwfs_root(struct mount *, struct vnode **);
74 static int nwfs_start(struct mount *, int, struct thread *);
75 static int nwfs_statfs(struct mount *, struct statfs *, struct thread *);
76 static int nwfs_sync(struct mount *, int, struct thread *);
77 static int nwfs_unmount(struct mount *, int, struct thread *);
78 static int nwfs_init(struct vfsconf *vfsp);
79 static int nwfs_uninit(struct vfsconf *vfsp);
81 static struct vfsops nwfs_vfsops = {
90 vfs_stdfhtovp, /* shouldn't happen */
92 vfs_stdvptofh, /* shouldn't happen */
99 VFS_SET(nwfs_vfsops, nwfs, VFCF_NETWORK);
101 int nwfs_pbuf_freecnt = -1; /* start out unlimited */
102 static int nwfsid = 1;
105 nwfs_initnls(struct nwmount *nmp) {
108 #define COPY_TABLE(t,d) { \
110 error = copyin((t), pc, 256); \
114 (t) = pc; pc += 256; \
117 nmp->m.nls.opt |= NWHP_NLS | NWHP_DOS;
118 if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) {
119 nmp->m.nls.to_lower = ncp_defnls.to_lower;
120 nmp->m.nls.to_upper = ncp_defnls.to_upper;
121 nmp->m.nls.n2u = ncp_defnls.n2u;
122 nmp->m.nls.u2n = ncp_defnls.u2n;
125 MALLOC(pe, char *, 256 * 4, M_NWFSDATA, M_WAITOK);
128 COPY_TABLE(nmp->m.nls.to_lower, ncp_defnls.to_lower);
129 COPY_TABLE(nmp->m.nls.to_upper, ncp_defnls.to_upper);
130 COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u);
131 COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n);
134 free(pe, M_NWFSDATA);
140 * mp - path - addr in user space of mount point (ie /usr or whatever)
141 * data - addr in user space of mount params
144 nwfs_mount(struct mount *mp, char *path, caddr_t data,
145 struct nameidata *ndp, struct thread *td)
147 struct nwfs_args args; /* will hold data from mount request */
150 struct nwmount *nmp = NULL;
151 struct ncp_conn *conn = NULL;
152 struct ncp_handle *handle = NULL;
157 KKASSERT(td->td_proc);
158 cred = td->td_proc->p_ucred;
161 nwfs_printf("missing data argument\n");
164 if (mp->mnt_flag & MNT_UPDATE) {
165 nwfs_printf("MNT_UPDATE not implemented");
168 error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
171 if (args.version != NWFS_VERSION) {
172 nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
175 error = ncp_conn_getbyref(args.connRef,td,cred,NCPM_EXECUTE,&conn);
177 nwfs_printf("invalid connection refernce %d\n",args.connRef);
180 error = ncp_conn_gethandle(conn, NULL, &handle);
182 nwfs_printf("can't get connection handle\n");
185 ncp_conn_unlock(conn,td); /* we keep the ref */
186 mp->mnt_stat.f_iosize = conn->buffer_size;
187 /* We must malloc our own mount info */
188 MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA, M_WAITOK|M_USE_RESERVE|M_ZERO);
190 nwfs_printf("could not alloc nwmount\n");
194 mp->mnt_data = (qaddr_t)nmp;
197 nmp->n_id = nwfsid++;
199 nmp->m.file_mode = (nmp->m.file_mode &
200 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
201 nmp->m.dir_mode = (nmp->m.dir_mode &
202 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
203 if ((error = nwfs_initnls(nmp)) != 0) goto bad;
204 (void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
205 bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
206 pc = mp->mnt_stat.f_mntfromname;
207 pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
210 pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
213 pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
216 strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
219 /* protect against invalid mount points */
220 nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
222 error = nwfs_root(mp, &vp);
226 * Lose the lock but keep the ref.
228 VOP_UNLOCK(vp, NULL, 0, curthread);
229 NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_usecount);
233 free(nmp, M_NWFSDATA);
235 ncp_conn_puthandle(handle, NULL, 0);
239 /* Unmount the filesystem described by mp. */
241 nwfs_unmount(struct mount *mp, int mntflags, struct thread *td)
243 struct nwmount *nmp = VFSTONWFS(mp);
244 struct ncp_conn *conn;
248 KKASSERT(td->td_proc);
249 cred = td->td_proc->p_ucred;
251 NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
253 if (mntflags & MNT_FORCE)
255 /* There is 1 extra root vnode reference from nwfs_mount(). */
256 error = vflush(mp, 1, flags);
259 conn = NWFSTOCONN(nmp);
260 ncp_conn_puthandle(nmp->connh,NULL,0);
261 if (ncp_conn_lock(conn,td,cred,NCPM_WRITE | NCPM_EXECUTE) == 0) {
262 if(ncp_disconnect(conn))
263 ncp_conn_unlock(conn,td);
265 mp->mnt_data = (qaddr_t)0;
266 if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
267 free(nmp->m.nls.to_lower, M_NWFSDATA);
268 free(nmp, M_NWFSDATA);
269 mp->mnt_flag &= ~MNT_LOCAL;
273 /* Return locked vnode to root of a filesystem */
275 nwfs_root(struct mount *mp, struct vnode **vpp)
280 struct ncp_conn *conn;
281 struct nw_entry_info fattr;
282 struct thread *td = curthread; /* XXX */
287 KKASSERT(td->td_proc);
288 cred = td->td_proc->p_ucred;
291 conn = NWFSTOCONN(nmp);
293 *vpp = NWTOV(nmp->n_root);
294 while (vget(*vpp, NULL, LK_EXCLUSIVE, curthread) != 0) /* XXX */
298 error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol,
299 &nmp->n_rootent.f_id, td, cred);
303 error = ncp_get_namespaces(conn, vol, &nsf, td, cred);
306 if (nsf & NW_NSB_OS2) {
307 NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
308 if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
309 nmp->name_space = NW_NS_OS2;
310 nmp->m.nls.opt &= ~NWHP_DOS;
313 opt = nmp->m.nls.opt;
314 nsf = opt & (NWHP_UPPER | NWHP_LOWER);
315 if (opt & NWHP_DOS) {
316 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
317 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
318 } else if (nsf == 0) {
319 nmp->m.nls.opt |= NWHP_LOWER;
322 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
323 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
326 if (nmp->m.root_path[0]) {
327 nmp->m.root_path[0]--;
328 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
329 -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
331 NCPFATAL("Invalid root path specified\n");
334 nmp->n_rootent.f_parent = fattr.dirEntNum;
335 nmp->m.root_path[0]++;
336 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
337 -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
339 NCPFATAL("Invalid root path specified\n");
342 nmp->n_rootent.f_id = fattr.dirEntNum;
344 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
345 0, NULL, &fattr, td, cred);
347 NCPFATAL("Can't obtain volume info\n");
350 fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL));
351 nmp->n_rootent.f_parent = nmp->n_rootent.f_id;
353 error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp);
358 if (nmp->m.root_path[0] == 0)
359 np->n_flag |= NVOLUME;
361 /* error = VOP_GETATTR(vp, &vattr, cred, td);
364 NCPFATAL("Can't get root directory entry\n");
372 * Vfs start routine, a no-op.
376 nwfs_start(struct mount *mp, int flags, struct thread *td)
378 NCPVODEBUG("flags=%04x\n",flags);
383 * Do operations associated with quotas, not supported
387 nwfs_quotactl(struct mount *mp, int cmd, uid_t uid, caddr_t arg,
390 NCPVODEBUG("return EOPNOTSUPP\n");
396 nwfs_init(struct vfsconf *vfsp)
400 int olen, ncpu, plen, error;
404 error = kernel_sysctl(name, 2, &ncpu, &olen, NULL, 0, &plen);
405 if (error == 0 && ncpu > 1)
406 printf("warning: nwfs module compiled without SMP support.");
409 nwfs_pbuf_freecnt = nswbuf / 2 + 1;
410 NCPVODEBUG("always happy to load!\n");
416 nwfs_uninit(struct vfsconf *vfsp)
420 NCPVODEBUG("unloaded\n");
428 nwfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td)
430 struct nwmount *nmp = VFSTONWFS(mp);
431 int error = 0, secsize;
432 struct nwnode *np = nmp->n_root;
433 struct ncp_volume_info vi;
436 KKASSERT(td->td_proc);
437 cred = td->td_proc->p_ucred;
439 if (np == NULL) return EINVAL;
440 error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume, &vi,td,cred);
441 if (error) return error;
442 secsize = 512; /* XXX how to get real value ??? */
443 sbp->f_spare2=0; /* placeholder */
444 /* fundamental file system block size */
445 sbp->f_bsize = vi.sectors_per_block*secsize;
446 /* optimal transfer block size */
447 sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size;
448 /* total data blocks in file system */
449 sbp->f_blocks= vi.total_blocks;
450 /* free blocks in fs */
451 sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks;
452 /* free blocks avail to non-superuser */
453 sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks;
454 /* total file nodes in file system */
455 sbp->f_files = vi.total_dir_entries;
456 /* free file nodes in fs */
457 sbp->f_ffree = vi.available_dir_entries;
458 sbp->f_flags = 0; /* copy of mount exported flags */
459 if (sbp != &mp->mnt_stat) {
460 sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */
461 sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */
462 sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */
463 bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
464 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
466 strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
471 * Flush out the buffer cache
475 nwfs_sync(struct mount *mp, int waitfor, struct thread *td)
478 int error, allerror = 0;
480 * Force stale buffer cache information to be flushed.
483 for (vp = TAILQ_FIRST(&mp->mnt_nvnodelist);
485 vp = TAILQ_NEXT(vp, v_nmntvnodes)) {
486 if (vp->v_flag & VPLACEMARKER) /* ZZZ */
489 * If the vnode that we are about to sync is no longer
490 * associated with this mount point, start over.
492 if (vp->v_mount != mp)
494 if (VOP_ISLOCKED(vp, NULL) || TAILQ_EMPTY(&vp->v_dirtyblkhd) ||
497 if (vget(vp, NULL, LK_EXCLUSIVE, td))
499 error = VOP_FSYNC(vp, waitfor, td);