2 * Copyright (c) 2000-2001, 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/fs/smbfs/smbfs_vfsops.c,v 1.2.2.5 2003/01/17 08:20:26 tjr Exp $
33 * $DragonFly: src/sys/vfs/smbfs/smbfs_vfsops.c,v 1.11 2004/03/19 17:06:06 dillon Exp $
35 #include "opt_netsmb.h"
37 #error "SMBFS requires option NETSMB"
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>
49 #include <sys/module.h>
52 #include <netproto/smb/smb.h>
53 #include <netproto/smb/smb_conn.h>
54 #include <netproto/smb/smb_subr.h>
55 #include <netproto/smb/smb_dev.h>
58 #include "smbfs_node.h"
59 #include "smbfs_subr.h"
63 int smbfs_debuglevel = 0;
65 static int smbfs_version = SMBFS_VERSION;
69 #include <vm/vm_extern.h>
70 #include <vm/vm_zone.h>
72 vm_zone_t smbfsmount_zone;
75 SYSCTL_NODE(_vfs, OID_AUTO, smbfs, CTLFLAG_RW, 0, "SMB/CIFS file system");
76 SYSCTL_INT(_vfs_smbfs, OID_AUTO, version, CTLFLAG_RD, &smbfs_version, 0, "");
77 SYSCTL_INT(_vfs_smbfs, OID_AUTO, debuglevel, CTLFLAG_RW, &smbfs_debuglevel, 0, "");
79 static MALLOC_DEFINE(M_SMBFSHASH, "SMBFS hash", "SMBFS hash table");
82 static int smbfs_mount(struct mount *, char *, caddr_t,
83 struct nameidata *, struct thread *);
84 static int smbfs_quotactl(struct mount *, int, uid_t, caddr_t, struct thread *);
85 static int smbfs_root(struct mount *, struct vnode **);
86 static int smbfs_start(struct mount *, int, struct thread *);
87 static int smbfs_statfs(struct mount *, struct statfs *, struct thread *);
88 static int smbfs_sync(struct mount *, int, struct thread *);
89 static int smbfs_unmount(struct mount *, int, struct thread *);
90 static int smbfs_init(struct vfsconf *vfsp);
91 static int smbfs_uninit(struct vfsconf *vfsp);
93 #if defined(__FreeBSD__) && __FreeBSD_version < 400009
94 static int smbfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp);
95 static int smbfs_fhtovp(struct mount *, struct fid *,
96 struct sockaddr *, struct vnode **, int *,
98 static int smbfs_vptofh(struct vnode *, struct fid *);
101 static struct vfsops smbfs_vfsops = {
109 #if defined(__DragonFly__) || __FreeBSD_version > 400008
111 vfs_stdfhtovp, /* shouldn't happen */
113 vfs_stdvptofh, /* shouldn't happen */
125 VFS_SET(smbfs_vfsops, smbfs, VFCF_NETWORK);
127 MODULE_DEPEND(smbfs, netsmb, NSMB_VERSION, NSMB_VERSION, NSMB_VERSION);
128 MODULE_DEPEND(smbfs, libiconv, 1, 1, 1);
129 MODULE_DEPEND(smbfs, libmchain, 1, 1, 1);
131 int smbfs_pbuf_freecnt = -1; /* start out unlimited */
134 smbfs_mount(struct mount *mp, char *path, caddr_t data,
135 struct nameidata *ndp, struct thread *td)
137 struct smbfs_args args; /* will hold data from mount request */
138 struct smbmount *smp = NULL;
140 struct smb_share *ssp = NULL;
142 struct smb_cred scred;
148 KKASSERT(td->td_proc);
149 cred = td->td_proc->p_ucred;
152 printf("missing data argument\n");
155 if (mp->mnt_flag & MNT_UPDATE) {
156 printf("MNT_UPDATE not implemented");
159 error = copyin(data, (caddr_t)&args, sizeof(struct smbfs_args));
162 if (args.version != SMBFS_VERSION) {
163 printf("mount version mismatch: kernel=%d, mount=%d\n",
164 SMBFS_VERSION, args.version);
167 smb_makescred(&scred, td, cred);
168 error = smb_dev2share(args.dev, SMBM_EXEC, &scred, &ssp);
170 printf("invalid device handle %d (%d)\n", args.dev, error);
174 smb_share_unlock(ssp, 0, td);
175 mp->mnt_stat.f_iosize = SSTOVC(ssp)->vc_txmax;
178 smp = zalloc(smbfsmount_zone);
180 MALLOC(smp, struct smbmount*, sizeof(*smp), M_SMBFSDATA, M_WAITOK|M_USE_RESERVE);
183 printf("could not alloc smbmount\n");
187 bzero(smp, sizeof(*smp));
188 mp->mnt_data = (qaddr_t)smp;
189 smp->sm_hash = hashinit(desiredvnodes, M_SMBFSHASH, &smp->sm_hashlen);
190 if (smp->sm_hash == NULL)
192 lockinit(&smp->sm_hashlock, 0, "smbfsh", 0, 0);
196 smp->sm_caseopt = args.caseopt;
197 smp->sm_args.file_mode = (smp->sm_args.file_mode &
198 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
199 smp->sm_args.dir_mode = (smp->sm_args.dir_mode &
200 (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
202 /* simple_lock_init(&smp->sm_npslock);*/
203 error = copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
206 bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
207 pc = mp->mnt_stat.f_mntfromname;
208 pe = pc + sizeof(mp->mnt_stat.f_mntfromname);
212 pc=index(strncpy(pc, vcp->vc_username, pe - pc - 2), 0);
215 pc = index(strncpy(pc, vcp->vc_srvname, pe - pc - 2), 0);
218 strncpy(pc, ssp->ss_name, pe - pc - 2);
221 /* protect against invalid mount points */
222 smp->sm_args.mount_point[sizeof(smp->sm_args.mount_point) - 1] = '\0';
224 error = smbfs_root(mp, &vp);
227 VOP_UNLOCK(vp, NULL, 0, td);
228 SMBVDEBUG("root.v_usecount = %d\n", vp->v_usecount);
231 SMBERROR("mp=%p\n", mp);
237 free(smp->sm_hash, M_SMBFSHASH);
238 lockdestroy(&smp->sm_hashlock);
240 zfree(smbfsmount_zone, smp);
242 free(smp, M_SMBFSDATA);
246 smb_share_put(ssp, &scred);
250 /* Unmount the filesystem described by mp. */
252 smbfs_unmount(struct mount *mp, int mntflags, struct thread *td)
254 struct smbmount *smp = VFSTOSMBFS(mp);
255 struct smb_cred scred;
259 KKASSERT(td->td_proc);
260 cred = td->td_proc->p_ucred;
262 SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
264 if (mntflags & MNT_FORCE)
267 * Keep trying to flush the vnode list for the mount while
268 * some are still busy and we are making progress towards
269 * making them not busy. This is needed because smbfs vnodes
270 * reference their parent directory but may appear after their
271 * parent in the list; one pass over the vnode list is not
272 * sufficient in this case.
276 /* There is 1 extra root vnode reference from smbfs_mount(). */
277 error = vflush(mp, 1, flags);
278 } while (error == EBUSY && smp->sm_didrele != 0);
281 smb_makescred(&scred, td, cred);
282 smb_share_put(smp->sm_share, &scred);
283 mp->mnt_data = (qaddr_t)0;
286 free(smp->sm_hash, M_SMBFSHASH);
287 lockdestroy(&smp->sm_hashlock);
289 zfree(smbfsmount_zone, smp);
291 free(smp, M_SMBFSDATA);
293 mp->mnt_flag &= ~MNT_LOCAL;
298 * Return locked root vnode of a filesystem
301 smbfs_root(struct mount *mp, struct vnode **vpp)
303 struct thread *td = curthread; /* XXX */
304 struct smbmount *smp = VFSTOSMBFS(mp);
307 struct smbfattr fattr;
309 struct smb_cred scred;
312 KKASSERT(td->td_proc);
313 cred = td->td_proc->p_ucred;
316 SMBERROR("smp == NULL (bug in umount)\n");
320 *vpp = SMBTOV(smp->sm_root);
321 return vget(*vpp, NULL, LK_EXCLUSIVE | LK_RETRY, td);
323 smb_makescred(&scred, td, cred);
324 error = smbfs_smb_lookup(NULL, NULL, 0, &fattr, &scred);
327 error = smbfs_nget(mp, NULL, "TheRooT", 7, &fattr, &vp);
338 * Vfs start routine, a no-op.
342 smbfs_start(mp, flags, td)
347 SMBVDEBUG("flags=%04x\n", flags);
352 * Do operations associated with quotas, not supported
356 smbfs_quotactl(mp, cmd, uid, arg, td)
363 SMBVDEBUG("return EOPNOTSUPP\n");
369 smbfs_init(struct vfsconf *vfsp)
372 smbfsmount_zone = zinit("SMBFSMOUNT", sizeof(struct smbmount), 0, 0, 1);
374 smbfs_pbuf_freecnt = nswbuf / 2 + 1;
375 SMBVDEBUG("done.\n");
381 smbfs_uninit(struct vfsconf *vfsp)
384 SMBVDEBUG("done.\n");
392 smbfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td)
394 struct smbmount *smp = VFSTOSMBFS(mp);
395 struct smbnode *np = smp->sm_root;
396 struct smb_share *ssp = smp->sm_share;
397 struct smb_cred scred;
401 KKASSERT(td->td_proc);
402 cred = td->td_proc->p_ucred;
407 sbp->f_iosize = SSTOVC(ssp)->vc_txmax; /* optimal transfer block size */
408 sbp->f_spare2 = 0; /* placeholder */
409 smb_makescred(&scred, td, cred);
411 if (SMB_DIALECT(SSTOVC(ssp)) >= SMB_DIALECT_LANMAN2_0)
412 error = smbfs_smb_statfs2(ssp, sbp, &scred);
414 error = smbfs_smb_statfs(ssp, sbp, &scred);
417 sbp->f_flags = 0; /* copy of mount exported flags */
418 if (sbp != &mp->mnt_stat) {
419 sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */
420 sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */
421 sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */
422 bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
423 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
425 strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
430 * Flush out the buffer cache
434 smbfs_sync(mp, waitfor, td)
440 int error, allerror = 0;
442 * Force stale buffer cache information to be flushed.
445 for (vp = TAILQ_FIRST(&mp->mnt_nvnodelist);
447 vp = TAILQ_NEXT(vp, v_nmntvnodes)) {
448 if (vp->v_flag & VPLACEMARKER) /* ZZZ */
451 * If the vnode that we are about to sync is no longer
452 * associated with this mount point, start over.
454 if (vp->v_mount != mp)
456 if (VOP_ISLOCKED(vp, NULL) || TAILQ_EMPTY(&vp->v_dirtyblkhd) ||
459 if (vget(vp, NULL, LK_EXCLUSIVE, td))
461 error = VOP_FSYNC(vp, waitfor, td);
469 #if defined(__FreeBSD__) && __FreeBSD_version < 400009
471 * smbfs flat namespace lookup. Unsupported.
474 static int smbfs_vget(mp, ino, vpp)
483 static int smbfs_fhtovp(mp, fhp, nam, vpp, exflagsp, credanonp)
486 struct sockaddr *nam;
489 struct ucred **credanonp;
495 * Vnode pointer to File handle, should never happen either
499 smbfs_vptofh(vp, fhp)
506 #endif /* __FreeBSD_version < 400009 */