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 1.20 2005/09/17 07:43:12 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, struct thread *);
73 static int nwfs_root(struct mount *, struct vnode **);
74 static int nwfs_statfs(struct mount *, struct statfs *, struct thread *);
75 static int nwfs_sync(struct mount *, int, struct thread *);
76 static int nwfs_unmount(struct mount *, int, struct thread *);
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);
93 int nwfs_pbuf_freecnt = -1; /* start out unlimited */
94 static int nwfsid = 1;
97 nwfs_initnls(struct nwmount *nmp) {
100 #define COPY_TABLE(t,d) { \
102 error = copyin((t), pc, 256); \
106 (t) = pc; pc += 256; \
109 nmp->m.nls.opt |= NWHP_NLS | NWHP_DOS;
110 if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) {
111 nmp->m.nls.to_lower = ncp_defnls.to_lower;
112 nmp->m.nls.to_upper = ncp_defnls.to_upper;
113 nmp->m.nls.n2u = ncp_defnls.n2u;
114 nmp->m.nls.u2n = ncp_defnls.u2n;
117 MALLOC(pe, char *, 256 * 4, M_NWFSDATA, M_WAITOK);
120 COPY_TABLE(nmp->m.nls.to_lower, ncp_defnls.to_lower);
121 COPY_TABLE(nmp->m.nls.to_upper, ncp_defnls.to_upper);
122 COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u);
123 COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n);
126 free(pe, M_NWFSDATA);
132 * mp - path - addr in user space of mount point (ie /usr or whatever)
133 * data - addr in user space of mount params
136 nwfs_mount(struct mount *mp, char *path, caddr_t data, struct thread *td)
138 struct nwfs_args args; /* will hold data from mount request */
140 struct nwmount *nmp = NULL;
141 struct ncp_conn *conn = NULL;
142 struct ncp_handle *handle = NULL;
147 KKASSERT(td->td_proc);
148 cred = td->td_proc->p_ucred;
151 nwfs_printf("missing data argument\n");
154 if (mp->mnt_flag & MNT_UPDATE) {
155 nwfs_printf("MNT_UPDATE not implemented");
158 error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
161 if (args.version != NWFS_VERSION) {
162 nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
165 error = ncp_conn_getbyref(args.connRef,td,cred,NCPM_EXECUTE,&conn);
167 nwfs_printf("invalid connection refernce %d\n",args.connRef);
170 error = ncp_conn_gethandle(conn, NULL, &handle);
172 nwfs_printf("can't get connection handle\n");
175 ncp_conn_unlock(conn,td); /* we keep the ref */
176 mp->mnt_stat.f_iosize = conn->buffer_size;
177 /* We must malloc our own mount info */
178 MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA, M_WAITOK|M_USE_RESERVE|M_ZERO);
180 nwfs_printf("could not alloc nwmount\n");
184 mp->mnt_data = (qaddr_t)nmp;
187 nmp->n_id = nwfsid++;
189 nmp->m.file_mode = (nmp->m.file_mode &
190 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
191 nmp->m.dir_mode = (nmp->m.dir_mode &
192 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
193 if ((error = nwfs_initnls(nmp)) != 0) goto bad;
194 pc = mp->mnt_stat.f_mntfromname;
195 pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
198 pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
201 pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
204 strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
207 /* protect against invalid mount points */
208 nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
210 vfs_add_vnodeops(mp, &mp->mnt_vn_norm_ops,
211 nwfs_vnodeop_entries, 0);
214 error = nwfs_root(mp, &vp);
218 * Lose the lock but keep the ref.
220 VOP_UNLOCK(vp, 0, curthread);
221 NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_usecount);
225 free(nmp, M_NWFSDATA);
227 ncp_conn_puthandle(handle, NULL, 0);
231 /* Unmount the filesystem described by mp. */
233 nwfs_unmount(struct mount *mp, int mntflags, struct thread *td)
235 struct nwmount *nmp = VFSTONWFS(mp);
236 struct ncp_conn *conn;
240 KKASSERT(td->td_proc);
241 cred = td->td_proc->p_ucred;
243 NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
245 if (mntflags & MNT_FORCE)
247 /* There is 1 extra root vnode reference from nwfs_mount(). */
248 error = vflush(mp, 1, flags);
251 conn = NWFSTOCONN(nmp);
252 ncp_conn_puthandle(nmp->connh,NULL,0);
253 if (ncp_conn_lock(conn,td,cred,NCPM_WRITE | NCPM_EXECUTE) == 0) {
254 if(ncp_disconnect(conn))
255 ncp_conn_unlock(conn,td);
257 mp->mnt_data = (qaddr_t)0;
258 if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
259 free(nmp->m.nls.to_lower, M_NWFSDATA);
260 free(nmp, M_NWFSDATA);
261 mp->mnt_flag &= ~MNT_LOCAL;
265 /* Return locked vnode to root of a filesystem */
267 nwfs_root(struct mount *mp, struct vnode **vpp)
272 struct ncp_conn *conn;
273 struct nw_entry_info fattr;
274 struct thread *td = curthread; /* XXX */
279 KKASSERT(td->td_proc);
280 cred = td->td_proc->p_ucred;
283 conn = NWFSTOCONN(nmp);
285 *vpp = NWTOV(nmp->n_root);
286 while (vget(*vpp, LK_EXCLUSIVE, curthread) != 0) /* XXX */
290 error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol,
291 &nmp->n_rootent.f_id, td, cred);
295 error = ncp_get_namespaces(conn, vol, &nsf, td, cred);
298 if (nsf & NW_NSB_OS2) {
299 NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
300 if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
301 nmp->name_space = NW_NS_OS2;
302 nmp->m.nls.opt &= ~NWHP_DOS;
305 opt = nmp->m.nls.opt;
306 nsf = opt & (NWHP_UPPER | NWHP_LOWER);
307 if (opt & NWHP_DOS) {
308 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
309 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
310 } else if (nsf == 0) {
311 nmp->m.nls.opt |= NWHP_LOWER;
314 if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
315 nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
318 if (nmp->m.root_path[0]) {
319 nmp->m.root_path[0]--;
320 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
321 -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
323 NCPFATAL("Invalid root path specified\n");
326 nmp->n_rootent.f_parent = fattr.dirEntNum;
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_id = fattr.dirEntNum;
336 error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
337 0, NULL, &fattr, td, cred);
339 NCPFATAL("Can't obtain volume info\n");
342 fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL));
343 nmp->n_rootent.f_parent = nmp->n_rootent.f_id;
345 error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp);
350 if (nmp->m.root_path[0] == 0)
351 np->n_flag |= NVOLUME;
353 /* error = VOP_GETATTR(vp, &vattr, cred, td);
356 NCPFATAL("Can't get root directory entry\n");
365 nwfs_init(struct vfsconf *vfsp)
369 int olen, ncpu, plen, error;
373 error = kernel_sysctl(name, 2, &ncpu, &olen, NULL, 0, &plen);
374 if (error == 0 && ncpu > 1)
375 printf("warning: nwfs module compiled without SMP support.");
378 nwfs_pbuf_freecnt = nswbuf / 2 + 1;
379 NCPVODEBUG("always happy to load!\n");
385 nwfs_uninit(struct vfsconf *vfsp)
389 NCPVODEBUG("unloaded\n");
397 nwfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td)
399 struct nwmount *nmp = VFSTONWFS(mp);
400 int error = 0, secsize;
401 struct nwnode *np = nmp->n_root;
402 struct ncp_volume_info vi;
405 KKASSERT(td->td_proc);
406 cred = td->td_proc->p_ucred;
408 if (np == NULL) return EINVAL;
409 error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume, &vi,td,cred);
410 if (error) return error;
411 secsize = 512; /* XXX how to get real value ??? */
412 sbp->f_spare2=0; /* placeholder */
413 /* fundamental file system block size */
414 sbp->f_bsize = vi.sectors_per_block*secsize;
415 /* optimal transfer block size */
416 sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size;
417 /* total data blocks in file system */
418 sbp->f_blocks= vi.total_blocks;
419 /* free blocks in fs */
420 sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks;
421 /* free blocks avail to non-superuser */
422 sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks;
423 /* total file nodes in file system */
424 sbp->f_files = vi.total_dir_entries;
425 /* free file nodes in fs */
426 sbp->f_ffree = vi.available_dir_entries;
427 sbp->f_flags = 0; /* copy of mount exported flags */
428 if (sbp != &mp->mnt_stat) {
429 sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */
430 sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */
431 sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */
432 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
434 strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
439 * Flush out the buffer cache
443 nwfs_sync(struct mount *mp, int waitfor, struct thread *td)
446 int error, allerror = 0;
448 * Force stale buffer cache information to be flushed.
451 for (vp = TAILQ_FIRST(&mp->mnt_nvnodelist);
453 vp = TAILQ_NEXT(vp, v_nmntvnodes)) {
455 * If the vnode that we are about to sync is no longer
456 * associated with this mount point, start over.
458 if (vp->v_mount != mp)
460 if (VOP_ISLOCKED(vp, NULL) || RB_EMPTY(&vp->v_rbdirty_tree) ||
463 if (vget(vp, LK_EXCLUSIVE, td))
465 /* XXX vp may not be retained */
466 error = VOP_FSYNC(vp, waitfor, td);