2 * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/namei.h>
35 #include <sys/kernel.h>
36 #include <sys/vnode.h>
37 #include <sys/mount.h>
40 #include <sys/fcntl.h>
41 #include <sys/malloc.h>
43 #include <geom/geom.h>
44 #include <geom/geom_vfs.h>
47 #include <vm/vm_param.h>
48 #include <vm/vm_page.h>
49 #include <vm/vm_object.h>
50 #include <vm/vm_extern.h>
52 #include <fs/hpfs/hpfs.h>
53 #include <fs/hpfs/hpfsmount.h>
54 #include <fs/hpfs/hpfs_subr.h>
56 MALLOC_DEFINE(M_HPFSMNT, "hpfs_mount", "HPFS mount structure");
57 MALLOC_DEFINE(M_HPFSNO, "hpfs_node", "HPFS node structure");
61 static int hpfs_mountfs(register struct vnode *, struct mount *,
64 static vfs_fhtovp_t hpfs_fhtovp;
65 static vfs_vget_t hpfs_vget;
66 static vfs_cmount_t hpfs_cmount;
67 static vfs_mount_t hpfs_mount;
68 static vfs_root_t hpfs_root;
69 static vfs_statfs_t hpfs_statfs;
70 static vfs_unmount_t hpfs_unmount;
79 struct hpfs_args args;
82 error = copyin(data, (caddr_t)&args, sizeof (struct hpfs_args));
86 ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN);
87 ma = mount_arg(ma, "export", &args.export, sizeof args.export);
88 ma = mount_argf(ma, "uid", "%d", args.uid);
89 ma = mount_argf(ma, "gid", "%d", args.gid);
90 ma = mount_argf(ma, "mode", "%d", args.mode);
91 if (args.flags & HPFSMNT_TABLES) {
92 ma = mount_arg(ma, "d2u", args.d2u, sizeof args.d2u);
93 ma = mount_arg(ma, "u2d", args.u2d, sizeof args.u2d);
96 error = kernel_mount(ma, flags);
101 static const char *hpfs_opts[] = {
102 "from", "export", "uid", "gid", "mode", "d2u", "u2d", NULL
112 struct hpfsmount *hpmp = 0;
113 struct nameidata ndp;
114 struct export_args export;
117 dprintf(("hpfs_omount():\n"));
120 * Mounting non-root filesystem or updating a filesystem
123 if (vfs_filteropt(mp->mnt_optnew, hpfs_opts))
126 from = vfs_getopts(mp->mnt_optnew, "from", &error);
131 * If updating, check whether changing from read-only to
132 * read/write; if there is no device name, that's all we do.
134 if (mp->mnt_flag & MNT_UPDATE) {
135 dprintf(("hpfs_omount: MNT_UPDATE: "));
137 hpmp = VFSTOHPFS(mp);
140 error = vfs_copyopt(mp->mnt_optnew, "export",
141 &export, sizeof export);
144 dprintf(("export 0x%x\n",args.export.ex_flags));
145 err = vfs_export(mp, &export);
147 printf("hpfs_omount: vfs_export failed %d\n",
152 dprintf(("name [FAILED]\n"));
160 * Not an update, or updating the name: look up the name
161 * and verify that it refers to a sensible block device.
163 NDINIT(&ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, from, td);
166 /* can't get devvp!*/
172 if (!vn_isdisk(devvp, &err)) {
184 * Since this is a new mount, we want the names for
185 * the device and the mount point copied in. If an
186 * error occurs, the mountpoint is discarded by the
187 * upper level code. Note that vfs_omount() handles
188 * copying the mountpoint f_mntonname for us, so we
189 * don't have to do it here unless we want to set it
190 * to something other than "path" for some rason.
192 /* Save "mounted from" info for mount point (NULL pad)*/
193 vfs_mountedfrom(mp, from);
195 err = hpfs_mountfs(devvp, mp, td);
203 error_1: /* no state to back out*/
204 /* XXX: Missing NDFREE(&ndp, ...) */
211 * Common code for mount and mountroot
214 hpfs_mountfs(devvp, mp, td)
215 register struct vnode *devvp;
222 struct hpfsmount *hpmp;
223 struct buf *bp = NULL;
225 struct cdev *dev = devvp->v_rdev;
226 struct g_consumer *cp;
229 if (mp->mnt_flag & MNT_ROOTFS)
231 dprintf(("hpfs_mountfs():\n"));
232 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
233 /* XXX: use VOP_ACCESS to check FS perms */
236 error = g_vfs_open(devvp, &cp, "hpfs", ronly ? 0 : 1);
239 VOP_UNLOCK(devvp, 0, td);
243 bo = &devvp->v_bufobj;
245 bo->bo_ops = g_vfs_bufops;
250 hpmp = malloc(sizeof(struct hpfsmount), M_HPFSMNT, M_WAITOK | M_ZERO);
255 /* Read in SuperBlock */
256 error = bread(devvp, SUBLOCK, SUSIZE, NOCRED, &bp);
259 bcopy(bp->b_data, &hpmp->hpm_su, sizeof(struct sublock));
260 brelse(bp); bp = NULL;
262 /* Read in SpareBlock */
263 error = bread(devvp, SPBLOCK, SPSIZE, NOCRED, &bp);
266 bcopy(bp->b_data, &hpmp->hpm_sp, sizeof(struct spblock));
267 brelse(bp); bp = NULL;
273 if (sup->su_magic != SU_MAGIC) {
274 printf("hpfs_mountfs: SuperBlock MAGIC DOESN'T MATCH\n");
278 if (spp->sp_magic != SP_MAGIC) {
279 printf("hpfs_mountfs: SpareBlock MAGIC DOESN'T MATCH\n");
284 mp->mnt_data = (qaddr_t)hpmp;
285 hpmp->hpm_devvp = devvp;
286 hpmp->hpm_dev = devvp->v_rdev;
288 if (1 == vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v))
290 if (1 == vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v))
292 if (1 == vfs_scanopt(mp->mnt_optnew, "mode", "%d", &v))
295 error = hpfs_bminit(hpmp);
299 error = hpfs_cpinit(mp, hpmp);
305 error = hpfs_root(mp, LK_EXCLUSIVE, &vp, td);
314 mp->mnt_stat.f_fsid.val[0] = (long)dev2udev(dev);
315 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
316 mp->mnt_maxsymlinklen = 0;
318 mp->mnt_flag |= MNT_LOCAL;
325 mp->mnt_data = (qaddr_t)NULL;
340 int error, flags, ronly;
341 register struct hpfsmount *hpmp = VFSTOHPFS(mp);
343 dprintf(("hpfs_unmount():\n"));
345 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
348 if(mntflags & MNT_FORCE)
351 dprintf(("hpfs_unmount: vflushing...\n"));
353 error = vflush(mp, 0, flags, td);
355 printf("hpfs_unmount: vflush failed: %d\n",error);
359 vinvalbuf(hpmp->hpm_devvp, V_SAVE, td, 0, 0);
362 g_vfs_close(hpmp->hpm_cp, td);
365 vrele(hpmp->hpm_devvp);
367 dprintf(("hpfs_umount: freeing memory...\n"));
370 mp->mnt_data = (qaddr_t)0;
372 mp->mnt_flag &= ~MNT_LOCAL;
374 FREE(hpmp, M_HPFSMNT);
387 struct hpfsmount *hpmp = VFSTOHPFS(mp);
389 dprintf(("hpfs_root():\n"));
390 error = VFS_VGET(mp, (ino_t)hpmp->hpm_su.su_rootfno, LK_EXCLUSIVE, vpp);
392 printf("hpfs_root: VFS_VGET failed: %d\n",error);
405 struct hpfsmount *hpmp = VFSTOHPFS(mp);
407 dprintf(("hpfs_statfs(): HPFS%d.%d\n",
408 hpmp->hpm_su.su_hpfsver, hpmp->hpm_su.su_fnctver));
410 sbp->f_type = mp->mnt_vfc->vfc_typenum;
411 sbp->f_bsize = DEV_BSIZE;
412 sbp->f_iosize = DEV_BSIZE;
413 sbp->f_blocks = hpmp->hpm_su.su_btotal;
414 sbp->f_bfree = sbp->f_bavail = hpmp->hpm_bavail;
417 sbp->f_flags = mp->mnt_flag;
430 struct hpfid *hpfhp = (struct hpfid *)fhp;
433 if ((error = VFS_VGET(mp, hpfhp->hpfid_ino, LK_EXCLUSIVE, &nvp)) != 0) {
437 /* XXX as unlink/rmdir/mkdir/creat are not currently possible
438 * with HPFS, we don't need to check anything else for now */
451 struct hpfsmount *hpmp = VFSTOHPFS(mp);
458 dprintf(("hpfs_vget(0x%x): ",ino));
460 error = vfs_hash_get(mp, ino, flags, curthread, vpp, NULL, NULL);
461 if (error || *vpp != NULL)
469 * We have to lock node creation for a while,
470 * but then we have to call getnewvnode(),
471 * this may cause hpfs_reclaim() to be called,
472 * this may need to VOP_VGET() parent dir for
473 * update reasons, and if parent is not in
474 * hash, we have to lock node creation...
475 * To solve this, we MALLOC, getnewvnode and init while
476 * not locked (probability of node appearence
477 * at that time is little, and anyway - we'll
480 MALLOC(hp, struct hpfsnode *, sizeof(struct hpfsnode),
483 error = getnewvnode("hpfs", mp, &hpfs_vnodeops, &vp);
485 printf("hpfs_vget: can't get new vnode\n");
490 dprintf(("prenew "));
494 if (ino == (ino_t)hpmp->hpm_su.su_rootfno)
495 vp->v_vflag |= VV_ROOT;
498 mtx_init(&hp->h_interlock, "hpfsnode interlock", NULL, MTX_DEF);
500 hp->h_flag = H_INVAL;
504 hp->h_dev = hpmp->hpm_dev;
505 hp->h_uid = hpmp->hpm_uid;
506 hp->h_gid = hpmp->hpm_uid;
507 hp->h_mode = hpmp->hpm_mode;
508 hp->h_devvp = hpmp->hpm_devvp;
511 lockmgr(vp->v_vnlock, LK_EXCLUSIVE, NULL, td);
512 error = insmntque(vp, mp);
517 error = vfs_hash_insert(vp, ino, flags, td, vpp, NULL, NULL);
518 if (error || *vpp != NULL)
521 error = bread(hpmp->hpm_devvp, ino, FNODESIZE, NOCRED, &bp);
523 printf("hpfs_vget: can't read ino %d\n",ino);
527 bcopy(bp->b_data, &hp->h_fn, sizeof(struct fnode));
530 if (hp->h_fn.fn_magic != FN_MAGIC) {
531 printf("hpfs_vget: MAGIC DOESN'T MATCH\n");
536 vp->v_type = hp->h_fn.fn_flag ? VDIR:VREG;
537 hp->h_flag &= ~H_INVAL;
544 static struct vfsops hpfs_vfsops = {
545 .vfs_fhtovp = hpfs_fhtovp,
546 .vfs_cmount = hpfs_cmount,
547 .vfs_mount = hpfs_mount,
548 .vfs_root = hpfs_root,
549 .vfs_statfs = hpfs_statfs,
550 .vfs_unmount = hpfs_unmount,
551 .vfs_vget = hpfs_vget,
553 VFS_SET(hpfs_vfsops, hpfs, 0);