AMD64 - Fix many compile-time warnings. int/ptr type mismatches, %llx, etc.
[dragonfly.git] / sys / vfs / hpfs / hpfs_vfsops.c
CommitLineData
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1/*-
2 * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/fs/hpfs/hpfs_vfsops.c,v 1.3.2.2 2001/12/25 01:44:45 dillon Exp $
67863d04 27 * $DragonFly: src/sys/vfs/hpfs/hpfs_vfsops.c,v 1.43 2008/09/17 21:44:22 dillon Exp $
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28 */
29
30
31#include <sys/param.h>
32#include <sys/systm.h>
fad57d0e 33#include <sys/nlookup.h>
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34#include <sys/conf.h>
35#include <sys/proc.h>
36#include <sys/kernel.h>
37#include <sys/vnode.h>
38#include <sys/mount.h>
39#include <sys/buf.h>
40#include <sys/fcntl.h>
41#include <sys/malloc.h>
42
f91a71dd
JS
43#include <machine/inttypes.h>
44
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45#include <vm/vm.h>
46#include <vm/vm_param.h>
47#if defined(__NetBSD__)
48#include <vm/vm_prot.h>
49#endif
50#include <vm/vm_page.h>
51#include <vm/vm_object.h>
52#include <vm/vm_extern.h>
7d1b9a3b 53#include <sys/buf2.h>
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54
55#if defined(__NetBSD__)
56#include <miscfs/specfs/specdev.h>
57#endif
58
1f2de5d4
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59#include "hpfs.h"
60#include "hpfsmount.h"
61#include "hpfs_subr.h"
984263bc 62
66a1ddf5 63extern struct vop_ops hpfs_vnode_vops;
0961aa92 64
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65MALLOC_DEFINE(M_HPFSMNT, "HPFS mount", "HPFS mount structure");
66MALLOC_DEFINE(M_HPFSNO, "HPFS node", "HPFS node structure");
984263bc 67
a6ee311a 68static int hpfs_root (struct mount *, struct vnode **);
acde96db
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69static int hpfs_statfs (struct mount *, struct statfs *, struct ucred *);
70static int hpfs_unmount (struct mount *, int);
a6ee311a 71static int hpfs_vget (struct mount *mp, ino_t ino,
67863d04 72 struct vnode **vpp);
a6ee311a 73static int hpfs_mountfs (struct vnode *, struct mount *,
67863d04 74 struct hpfs_args *);
a6ee311a 75static int hpfs_vptofh (struct vnode *, struct fid *);
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76static int hpfs_fhtovp (struct mount *, struct vnode *,
77 struct fid *, struct vnode **);
984263bc 78
984263bc 79
984263bc 80struct sockaddr;
acde96db 81static int hpfs_mount (struct mount *, char *, caddr_t, struct ucred *);
a6ee311a
RG
82static int hpfs_init (struct vfsconf *);
83static int hpfs_checkexp (struct mount *, struct sockaddr *,
84 int *, struct ucred **);
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85
86/*ARGSUSED*/
87static int
dd3af26c 88hpfs_checkexp(struct mount *mp,
dd3af26c 89 struct sockaddr *nam,
dd3af26c 90 int *exflagsp, struct ucred **credanonp)
984263bc 91{
f7aae92f
RG
92 struct netcred *np;
93 struct hpfsmount *hpm = VFSTOHPFS(mp);
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94
95 /*
96 * Get the export permission structure for this <mp, client> tuple.
97 */
98 np = vfs_export_lookup(mp, &hpm->hpm_export, nam);
99 if (np == NULL)
100 return (EACCES);
101
102 *exflagsp = np->netc_exflags;
103 *credanonp = &np->netc_anon;
104 return (0);
105}
106
984263bc 107static int
dd3af26c 108hpfs_init(struct vfsconf *vcp)
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109{
110 dprintf(("hpfs_init():\n"));
111
112 hpfs_hphashinit();
984263bc 113 return 0;
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114}
115
116static int
acde96db 117hpfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
984263bc 118{
973c11b9 119 size_t size;
fad57d0e 120 int error;
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121 struct vnode *devvp;
122 struct hpfs_args args;
123 struct hpfsmount *hpmp = 0;
fad57d0e 124 struct nlookupdata nd;
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125
126 dprintf(("hpfs_mount():\n"));
127 /*
128 ***
129 * Mounting non-root file system or updating a file system
130 ***
131 */
132
133 /* copy in user arguments*/
fad57d0e
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134 error = copyin(data, (caddr_t)&args, sizeof (struct hpfs_args));
135 if (error)
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136 goto error_1; /* can't get arguments*/
137
138 /*
139 * If updating, check whether changing from read-only to
140 * read/write; if there is no device name, that's all we do.
141 */
142 if (mp->mnt_flag & MNT_UPDATE) {
143 dprintf(("hpfs_mount: MNT_UPDATE: "));
144
145 hpmp = VFSTOHPFS(mp);
146
147 if (args.fspec == 0) {
148 dprintf(("export 0x%x\n",args.export.ex_flags));
fad57d0e
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149 error = vfs_export(mp, &hpmp->hpm_export, &args.export);
150 if (error) {
086c1d7e 151 kprintf("hpfs_mount: vfs_export failed %d\n",
fad57d0e 152 error);
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153 }
154 goto success;
155 } else {
156 dprintf(("name [FAILED]\n"));
fad57d0e 157 error = EINVAL;
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158 goto success;
159 }
160 dprintf(("\n"));
161 }
162
163 /*
164 * Not an update, or updating the name: look up the name
165 * and verify that it refers to a sensible block device.
166 */
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167 devvp = NULL;
168 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW);
169 if (error == 0)
170 error = nlookup(&nd);
171 if (error == 0)
28623bf9 172 error = cache_vref(&nd.nl_nch, nd.nl_cred, &devvp);
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173 nlookup_done(&nd);
174 if (error)
984263bc 175 goto error_1;
984263bc 176
fad57d0e 177 if (!vn_isdisk(devvp, &error))
984263bc 178 goto error_2;
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179
180 /*
181 ********************
182 * NEW MOUNT
183 ********************
184 */
185
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186 /* Save "mounted from" info for mount point (NULL pad)*/
187 copyinstr( args.fspec, /* device name*/
188 mp->mnt_stat.f_mntfromname, /* save area*/
189 MNAMELEN - 1, /* max size*/
190 &size); /* real size*/
191 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
192
acde96db 193 error = hpfs_mountfs(devvp, mp, &args);
fad57d0e 194 if (error)
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195 goto error_2;
196
197 /*
75ffff0d
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198 * Initialize FS stat information in mount struct; uses
199 * mp->mnt_stat.f_mntfromname.
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200 *
201 * This code is common to root and non-root mounts
202 */
acde96db 203 VFS_STATFS(mp, &mp->mnt_stat, cred);
fad57d0e 204 return (error);
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205
206error_2: /* error with devvp held*/
207
208 /* release devvp before failing*/
209 vrele(devvp);
210
211error_1: /* no state to back out*/
212
213success:
fad57d0e 214 return (error);
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215}
216
217/*
218 * Common code for mount and mountroot
219 */
220int
acde96db 221hpfs_mountfs(struct vnode *devvp, struct mount *mp, struct hpfs_args *argsp)
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222{
223 int error, ncount, ronly;
224 struct sublock *sup;
225 struct spblock *spp;
226 struct hpfsmount *hpmp;
227 struct buf *bp = NULL;
228 struct vnode *vp;
b13267a5 229 cdev_t dev;
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230
231 dprintf(("hpfs_mountfs():\n"));
232 /*
233 * Disallow multiple mounts of the same device.
234 * Disallow mounting of a device that is currently in use
235 * (except for root, which might share swap device for miniroot).
236 * Flush out any old buffers remaining from a previous use.
237 */
238 error = vfs_mountedon(devvp);
239 if (error)
240 return (error);
0e9b9130 241 ncount = count_udev(devvp->v_umajor, devvp->v_uminor);
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242 if (devvp->v_object)
243 ncount -= 1;
21739618 244 if (ncount > 0)
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245 return (EBUSY);
246
acde96db 247 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY);
87de5057 248 error = vinvalbuf(devvp, V_SAVE, 0, 0);
acde96db 249 VOP__UNLOCK(devvp, 0);
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250 if (error)
251 return (error);
252
253 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
acde96db 254 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY);
87de5057 255 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL);
acde96db 256 VOP__UNLOCK(devvp, 0);
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257 if (error)
258 return (error);
e4c9c0c8 259 dev = devvp->v_rdev;
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260
261 /*
262 * Do actual mount
263 */
e7b4468c 264 hpmp = kmalloc(sizeof(struct hpfsmount), M_HPFSMNT, M_WAITOK | M_ZERO);
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265
266 /* Read in SuperBlock */
54078292 267 error = bread(devvp, dbtodoff(SUBLOCK), SUSIZE, &bp);
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268 if (error)
269 goto failed;
270 bcopy(bp->b_data, &hpmp->hpm_su, sizeof(struct sublock));
271 brelse(bp); bp = NULL;
272
273 /* Read in SpareBlock */
54078292 274 error = bread(devvp, dbtodoff(SPBLOCK), SPSIZE, &bp);
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275 if (error)
276 goto failed;
277 bcopy(bp->b_data, &hpmp->hpm_sp, sizeof(struct spblock));
278 brelse(bp); bp = NULL;
279
280 sup = &hpmp->hpm_su;
281 spp = &hpmp->hpm_sp;
282
283 /* Check magic */
284 if (sup->su_magic != SU_MAGIC) {
086c1d7e 285 kprintf("hpfs_mountfs: SuperBlock MAGIC DOESN'T MATCH\n");
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286 error = EINVAL;
287 goto failed;
288 }
289 if (spp->sp_magic != SP_MAGIC) {
086c1d7e 290 kprintf("hpfs_mountfs: SpareBlock MAGIC DOESN'T MATCH\n");
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291 error = EINVAL;
292 goto failed;
293 }
294
295 mp->mnt_data = (qaddr_t)hpmp;
296 hpmp->hpm_devvp = devvp;
e4c9c0c8 297 hpmp->hpm_dev = dev;
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298 hpmp->hpm_mp = mp;
299 hpmp->hpm_uid = argsp->uid;
300 hpmp->hpm_gid = argsp->gid;
301 hpmp->hpm_mode = argsp->mode;
302
303 error = hpfs_bminit(hpmp);
304 if (error)
305 goto failed;
306
307 error = hpfs_cpinit(hpmp, argsp);
308 if (error) {
309 hpfs_bmdeinit(hpmp);
310 goto failed;
311 }
66a1ddf5 312 vfs_add_vnodeops(mp, &hpfs_vnode_vops, &mp->mnt_vn_norm_ops);
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313
314 error = hpfs_root(mp, &vp);
315 if (error) {
316 hpfs_cpdeinit(hpmp);
317 hpfs_bmdeinit(hpmp);
318 goto failed;
319 }
320
321 vput(vp);
322
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323 mp->mnt_stat.f_fsid.val[0] = (long)dev2udev(dev);
324 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
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325 mp->mnt_maxsymlinklen = 0;
326 mp->mnt_flag |= MNT_LOCAL;
e4c9c0c8 327 dev->si_mountpoint = mp;
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328 return (0);
329
330failed:
331 if (bp)
332 brelse (bp);
333 mp->mnt_data = (qaddr_t)NULL;
e4c9c0c8 334 dev->si_mountpoint = NULL;
87de5057 335 VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE);
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336 return (error);
337}
338
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339
340static int
acde96db 341hpfs_unmount(struct mount *mp, int mntflags)
984263bc
MD
342{
343 int error, flags, ronly;
f7aae92f 344 struct hpfsmount *hpmp = VFSTOHPFS(mp);
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MD
345
346 dprintf(("hpfs_unmount():\n"));
347
348 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
349
350 flags = 0;
351 if(mntflags & MNT_FORCE)
352 flags |= FORCECLOSE;
353
354 dprintf(("hpfs_unmount: vflushing...\n"));
355
356 error = vflush(mp, 0, flags);
357 if (error) {
086c1d7e 358 kprintf("hpfs_unmount: vflush failed: %d\n",error);
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359 return (error);
360 }
361
e4c9c0c8 362 hpmp->hpm_devvp->v_rdev->si_mountpoint = NULL;
984263bc 363
87de5057
MD
364 vinvalbuf(hpmp->hpm_devvp, V_SAVE, 0, 0);
365 error = VOP_CLOSE(hpmp->hpm_devvp, ronly ? FREAD : FREAD|FWRITE);
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366
367 vrele(hpmp->hpm_devvp);
368
369 dprintf(("hpfs_umount: freeing memory...\n"));
370 hpfs_cpdeinit(hpmp);
371 hpfs_bmdeinit(hpmp);
372 mp->mnt_data = (qaddr_t)0;
373 mp->mnt_flag &= ~MNT_LOCAL;
374 FREE(hpmp, M_HPFSMNT);
375
376 return (0);
377}
378
379static int
dd3af26c 380hpfs_root(struct mount *mp, struct vnode **vpp)
984263bc
MD
381{
382 int error = 0;
383 struct hpfsmount *hpmp = VFSTOHPFS(mp);
384
385 dprintf(("hpfs_root():\n"));
386 error = VFS_VGET(mp, (ino_t)hpmp->hpm_su.su_rootfno, vpp);
387 if(error) {
086c1d7e 388 kprintf("hpfs_root: VFS_VGET failed: %d\n",error);
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389 return (error);
390 }
391
392 return (error);
393}
394
395static int
acde96db 396hpfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred)
984263bc
MD
397{
398 struct hpfsmount *hpmp = VFSTOHPFS(mp);
399
400 dprintf(("hpfs_statfs(): HPFS%d.%d\n",
401 hpmp->hpm_su.su_hpfsver, hpmp->hpm_su.su_fnctver));
402
984263bc 403 sbp->f_type = mp->mnt_vfc->vfc_typenum;
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MD
404 sbp->f_bsize = DEV_BSIZE;
405 sbp->f_iosize = DEV_BSIZE;
406 sbp->f_blocks = hpmp->hpm_su.su_btotal;
407 sbp->f_bfree = sbp->f_bavail = hpmp->hpm_bavail;
408 sbp->f_ffree = 0;
409 sbp->f_files = 0;
410 if (sbp != &mp->mnt_stat) {
984263bc
MD
411 bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
412 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
413 }
414 sbp->f_flags = mp->mnt_flag;
415
416 return (0);
417}
418
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419
420/*ARGSUSED*/
421static int
67863d04
MD
422hpfs_fhtovp(struct mount *mp, struct vnode *rootvp,
423 struct fid *fhp, struct vnode **vpp)
984263bc
MD
424{
425 struct vnode *nvp;
426 struct hpfid *hpfhp = (struct hpfid *)fhp;
427 int error;
428
429 if ((error = VFS_VGET(mp, hpfhp->hpfid_ino, &nvp)) != 0) {
430 *vpp = NULLVP;
431 return (error);
432 }
433 /* XXX as unlink/rmdir/mkdir/creat are not currently possible
434 * with HPFS, we don't need to check anything else for now */
435 *vpp = nvp;
436
437 return (0);
438}
439
440static int
dd3af26c 441hpfs_vptofh(struct vnode *vp, struct fid *fhp)
984263bc 442{
f7aae92f
RG
443 struct hpfsnode *hpp;
444 struct hpfid *hpfhp;
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MD
445
446 hpp = VTOHP(vp);
447 hpfhp = (struct hpfid *)fhp;
448 hpfhp->hpfid_len = sizeof(struct hpfid);
449 hpfhp->hpfid_ino = hpp->h_no;
450 /* hpfhp->hpfid_gen = hpp->h_gen; */
451 return (0);
452}
453
454static int
dd3af26c 455hpfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp)
984263bc
MD
456{
457 struct hpfsmount *hpmp = VFSTOHPFS(mp);
458 struct vnode *vp;
459 struct hpfsnode *hp;
460 struct buf *bp;
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461 int error;
462
463 dprintf(("hpfs_vget(0x%x): ",ino));
464
465 *vpp = NULL;
466 hp = NULL;
467 vp = NULL;
468
87de5057 469 if ((*vpp = hpfs_hphashvget(hpmp->hpm_dev, ino)) != NULL) {
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470 dprintf(("hashed\n"));
471 return (0);
472 }
473
474 /*
475 * We have to lock node creation for a while,
476 * but then we have to call getnewvnode(),
477 * this may cause hpfs_reclaim() to be called,
478 * this may need to VOP_VGET() parent dir for
479 * update reasons, and if parent is not in
480 * hash, we have to lock node creation...
481 * To solve this, we MALLOC, getnewvnode and init while
482 * not locked (probability of node appearence
483 * at that time is little, and anyway - we'll
484 * check for it).
485 */
486 MALLOC(hp, struct hpfsnode *, sizeof(struct hpfsnode),
487 M_HPFSNO, M_WAITOK);
488
6ddb7618 489 error = getnewvnode(VT_HPFS, hpmp->hpm_mp, &vp, VLKTIMEOUT, 0);
984263bc 490 if (error) {
086c1d7e 491 kprintf("hpfs_vget: can't get new vnode\n");
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MD
492 FREE(hp, M_HPFSNO);
493 return (error);
494 }
495
496 dprintf(("prenew "));
497
498 vp->v_data = hp;
499
500 if (ino == (ino_t)hpmp->hpm_su.su_rootfno)
501 vp->v_flag |= VROOT;
502
41a01a4d 503 lwkt_token_init(&hp->h_interlock);
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504
505 hp->h_flag = H_INVAL;
506 hp->h_vp = vp;
507 hp->h_hpmp = hpmp;
508 hp->h_no = ino;
509 hp->h_dev = hpmp->hpm_dev;
510 hp->h_uid = hpmp->hpm_uid;
511 hp->h_gid = hpmp->hpm_uid;
512 hp->h_mode = hpmp->hpm_mode;
513 hp->h_devvp = hpmp->hpm_devvp;
597aea93 514 vref(hp->h_devvp);
984263bc 515
984263bc 516 do {
87de5057 517 if ((*vpp = hpfs_hphashvget(hpmp->hpm_dev, ino)) != NULL) {
984263bc 518 dprintf(("hashed2\n"));
5fd012e0 519 vx_put(vp);
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MD
520 return (0);
521 }
acde96db 522 } while (LOCKMGR(&hpfs_hphash_lock, LK_EXCLUSIVE | LK_SLEEPFAIL));
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523
524 hpfs_hphashins(hp);
525
acde96db 526 LOCKMGR(&hpfs_hphash_lock, LK_RELEASE);
984263bc 527
54078292 528 error = bread(hpmp->hpm_devvp, dbtodoff(ino), FNODESIZE, &bp);
984263bc 529 if (error) {
086c1d7e 530 kprintf("hpfs_vget: can't read ino %"PRId64"\n",ino);
5fd012e0 531 vx_put(vp);
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MD
532 return (error);
533 }
534 bcopy(bp->b_data, &hp->h_fn, sizeof(struct fnode));
535 brelse(bp);
536
537 if (hp->h_fn.fn_magic != FN_MAGIC) {
086c1d7e 538 kprintf("hpfs_vget: MAGIC DOESN'T MATCH\n");
5fd012e0 539 vx_put(vp);
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540 return (EINVAL);
541 }
542
543 vp->v_type = hp->h_fn.fn_flag ? VDIR:VREG;
544 hp->h_flag &= ~H_INVAL;
545
5fd012e0 546 /* Return the locked and refd vnode */
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547 *vpp = vp;
548
549 return (0);
550}
551
984263bc 552static struct vfsops hpfs_vfsops = {
43c45e8f
HP
553 .vfs_mount = hpfs_mount,
554 .vfs_unmount = hpfs_unmount,
555 .vfs_root = hpfs_root,
556 .vfs_statfs = hpfs_statfs,
557 .vfs_sync = vfs_stdsync,
558 .vfs_vget = hpfs_vget,
559 .vfs_fhtovp = hpfs_fhtovp,
560 .vfs_checkexp = hpfs_checkexp,
561 .vfs_vptofh = hpfs_vptofh,
562 .vfs_init = hpfs_init,
563 .vfs_uninit = hpfs_hphash_uninit
984263bc 564};
984263bc 565
64b4604e 566VFS_SET(hpfs_vfsops, hpfs, 0);
984263bc 567