27 */
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/proc.h>
32#include <sys/bio.h>
33#include <sys/buf.h>
34#include <sys/kernel.h>
35#include <sys/sysctl.h>
36#include <sys/vnode.h>
37#include <sys/mount.h>
38#include <sys/stat.h>
39#include <sys/malloc.h>
40#include <sys/module.h>
41#include <sys/sx.h>
42
43
44#include <netsmb/smb.h>
45#include <netsmb/smb_conn.h>
46#include <netsmb/smb_subr.h>
47#include <netsmb/smb_dev.h>
48
49#include <fs/smbfs/smbfs.h>
50#include <fs/smbfs/smbfs_node.h>
51#include <fs/smbfs/smbfs_subr.h>
52
53static int smbfs_debuglevel = 0;
54
55static int smbfs_version = SMBFS_VERSION;
56
57#ifdef SMBFS_USEZONE
58#include <vm/vm.h>
59#include <vm/vm_extern.h>
60
61vm_zone_t smbfsmount_zone;
62#endif
63
64SYSCTL_NODE(_vfs, OID_AUTO, smbfs, CTLFLAG_RW, 0, "SMB/CIFS filesystem");
65SYSCTL_INT(_vfs_smbfs, OID_AUTO, version, CTLFLAG_RD, &smbfs_version, 0, "");
66SYSCTL_INT(_vfs_smbfs, OID_AUTO, debuglevel, CTLFLAG_RW, &smbfs_debuglevel, 0, "");
67
68static MALLOC_DEFINE(M_SMBFSHASH, "smbfs_hash", "SMBFS hash table");
69
70static vfs_init_t smbfs_init;
71static vfs_uninit_t smbfs_uninit;
72static vfs_cmount_t smbfs_cmount;
73static vfs_mount_t smbfs_mount;
74static vfs_root_t smbfs_root;
75static vfs_quotactl_t smbfs_quotactl;
76static vfs_statfs_t smbfs_statfs;
77static vfs_unmount_t smbfs_unmount;
78
79static struct vfsops smbfs_vfsops = {
80 .vfs_init = smbfs_init,
81 .vfs_cmount = smbfs_cmount,
82 .vfs_mount = smbfs_mount,
83 .vfs_quotactl = smbfs_quotactl,
84 .vfs_root = smbfs_root,
85 .vfs_statfs = smbfs_statfs,
86 .vfs_sync = vfs_stdsync,
87 .vfs_uninit = smbfs_uninit,
88 .vfs_unmount = smbfs_unmount,
89};
90
91
92VFS_SET(smbfs_vfsops, smbfs, VFCF_NETWORK);
93
94MODULE_DEPEND(smbfs, netsmb, NSMB_VERSION, NSMB_VERSION, NSMB_VERSION);
95MODULE_DEPEND(smbfs, libiconv, 1, 1, 2);
96MODULE_DEPEND(smbfs, libmchain, 1, 1, 1);
97
98int smbfs_pbuf_freecnt = -1; /* start out unlimited */
99
100static int
| 27 */
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/proc.h>
32#include <sys/bio.h>
33#include <sys/buf.h>
34#include <sys/kernel.h>
35#include <sys/sysctl.h>
36#include <sys/vnode.h>
37#include <sys/mount.h>
38#include <sys/stat.h>
39#include <sys/malloc.h>
40#include <sys/module.h>
41#include <sys/sx.h>
42
43
44#include <netsmb/smb.h>
45#include <netsmb/smb_conn.h>
46#include <netsmb/smb_subr.h>
47#include <netsmb/smb_dev.h>
48
49#include <fs/smbfs/smbfs.h>
50#include <fs/smbfs/smbfs_node.h>
51#include <fs/smbfs/smbfs_subr.h>
52
53static int smbfs_debuglevel = 0;
54
55static int smbfs_version = SMBFS_VERSION;
56
57#ifdef SMBFS_USEZONE
58#include <vm/vm.h>
59#include <vm/vm_extern.h>
60
61vm_zone_t smbfsmount_zone;
62#endif
63
64SYSCTL_NODE(_vfs, OID_AUTO, smbfs, CTLFLAG_RW, 0, "SMB/CIFS filesystem");
65SYSCTL_INT(_vfs_smbfs, OID_AUTO, version, CTLFLAG_RD, &smbfs_version, 0, "");
66SYSCTL_INT(_vfs_smbfs, OID_AUTO, debuglevel, CTLFLAG_RW, &smbfs_debuglevel, 0, "");
67
68static MALLOC_DEFINE(M_SMBFSHASH, "smbfs_hash", "SMBFS hash table");
69
70static vfs_init_t smbfs_init;
71static vfs_uninit_t smbfs_uninit;
72static vfs_cmount_t smbfs_cmount;
73static vfs_mount_t smbfs_mount;
74static vfs_root_t smbfs_root;
75static vfs_quotactl_t smbfs_quotactl;
76static vfs_statfs_t smbfs_statfs;
77static vfs_unmount_t smbfs_unmount;
78
79static struct vfsops smbfs_vfsops = {
80 .vfs_init = smbfs_init,
81 .vfs_cmount = smbfs_cmount,
82 .vfs_mount = smbfs_mount,
83 .vfs_quotactl = smbfs_quotactl,
84 .vfs_root = smbfs_root,
85 .vfs_statfs = smbfs_statfs,
86 .vfs_sync = vfs_stdsync,
87 .vfs_uninit = smbfs_uninit,
88 .vfs_unmount = smbfs_unmount,
89};
90
91
92VFS_SET(smbfs_vfsops, smbfs, VFCF_NETWORK);
93
94MODULE_DEPEND(smbfs, netsmb, NSMB_VERSION, NSMB_VERSION, NSMB_VERSION);
95MODULE_DEPEND(smbfs, libiconv, 1, 1, 2);
96MODULE_DEPEND(smbfs, libmchain, 1, 1, 1);
97
98int smbfs_pbuf_freecnt = -1; /* start out unlimited */
99
100static int
|
102{
103 struct smbfs_args args;
104 int error;
105
106 error = copyin(data, &args, sizeof(struct smbfs_args));
107 if (error)
108 return error;
109
110 if (args.version != SMBFS_VERSION) {
111 printf("mount version mismatch: kernel=%d, mount=%d\n",
112 SMBFS_VERSION, args.version);
113 return EINVAL;
114 }
115 ma = mount_argf(ma, "dev", "%d", args.dev);
116 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_SOFT, "nosoft");
117 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_INTR, "nointr");
118 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_STRONG, "nostrong");
119 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_HAVE_NLS, "nohave_nls");
120 ma = mount_argb(ma, !(args.flags & SMBFS_MOUNT_NO_LONG), "nolong");
121 ma = mount_arg(ma, "rootpath", args.root_path, -1);
122 ma = mount_argf(ma, "uid", "%d", args.uid);
123 ma = mount_argf(ma, "gid", "%d", args.gid);
124 ma = mount_argf(ma, "file_mode", "%d", args.file_mode);
125 ma = mount_argf(ma, "dir_mode", "%d", args.dir_mode);
126 ma = mount_argf(ma, "caseopt", "%d", args.caseopt);
127
128 error = kernel_mount(ma, flags);
129
130 return (error);
131}
132
133static const char *smbfs_opts[] = {
134 "dev", "soft", "intr", "strong", "have_nls", "long",
135 "mountpoint", "rootpath", "uid", "gid", "file_mode", "dir_mode",
136 "caseopt", "errmsg", NULL
137};
138
139static int
140smbfs_mount(struct mount *mp)
141{
142 struct smbmount *smp = NULL;
143 struct smb_vc *vcp;
144 struct smb_share *ssp = NULL;
145 struct vnode *vp;
146 struct thread *td;
147 struct smb_cred scred;
148 int error, v;
149 char *pc, *pe;
150
151 td = curthread;
152 if (mp->mnt_flag & (MNT_UPDATE | MNT_ROOTFS))
153 return EOPNOTSUPP;
154
155 if (vfs_filteropt(mp->mnt_optnew, smbfs_opts)) {
156 vfs_mount_error(mp, "%s", "Invalid option");
157 return (EINVAL);
158 }
159
160 smb_makescred(&scred, td, td->td_ucred);
161 if (1 != vfs_scanopt(mp->mnt_optnew, "dev", "%d", &v)) {
162 vfs_mount_error(mp, "No dev option");
163 return (EINVAL);
164 }
165 error = smb_dev2share(v, SMBM_EXEC, &scred, &ssp);
166 if (error) {
167 printf("invalid device handle %d (%d)\n", v, error);
168 vfs_mount_error(mp, "invalid device handle %d (%d)\n", v, error);
169 return error;
170 }
171 vcp = SSTOVC(ssp);
172 smb_share_unlock(ssp, 0);
173 mp->mnt_stat.f_iosize = SSTOVC(ssp)->vc_txmax;
174
175#ifdef SMBFS_USEZONE
176 smp = zalloc(smbfsmount_zone);
177#else
178 smp = malloc(sizeof(*smp), M_SMBFSDATA, M_WAITOK);
179#endif
180 if (smp == NULL) {
181 printf("could not alloc smbmount\n");
182 vfs_mount_error(mp, "could not alloc smbmount", v, error);
183 error = ENOMEM;
184 goto bad;
185 }
186 bzero(smp, sizeof(*smp));
187 mp->mnt_data = smp;
188 smp->sm_hash = hashinit(desiredvnodes, M_SMBFSHASH, &smp->sm_hashlen);
189 if (smp->sm_hash == NULL)
190 goto bad;
191 sx_init(&smp->sm_hashlock, "smbfsh");
192 smp->sm_share = ssp;
193 smp->sm_root = NULL;
194 if (1 != vfs_scanopt(mp->mnt_optnew,
195 "caseopt", "%d", &smp->sm_caseopt)) {
196 vfs_mount_error(mp, "Invalid caseopt");
197 error = EINVAL;
198 goto bad;
199 }
200 if (1 != vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v)) {
201 vfs_mount_error(mp, "Invalid uid");
202 error = EINVAL;
203 goto bad;
204 }
205 smp->sm_uid = v;
206
207 if (1 != vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v)) {
208 vfs_mount_error(mp, "Invalid gid");
209 error = EINVAL;
210 goto bad;
211 }
212 smp->sm_gid = v;
213
214 if (1 != vfs_scanopt(mp->mnt_optnew, "file_mode", "%d", &v)) {
215 vfs_mount_error(mp, "Invalid file_mode");
216 error = EINVAL;
217 goto bad;
218 }
219 smp->sm_file_mode = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
220
221 if (1 != vfs_scanopt(mp->mnt_optnew, "dir_mode", "%d", &v)) {
222 vfs_mount_error(mp, "Invalid dir_mode");
223 error = EINVAL;
224 goto bad;
225 }
226 smp->sm_dir_mode = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
227
228 vfs_flagopt(mp->mnt_optnew,
229 "nolong", &smp->sm_flags, SMBFS_MOUNT_NO_LONG);
230
231/* simple_lock_init(&smp->sm_npslock);*/
232 pc = mp->mnt_stat.f_mntfromname;
233 pe = pc + sizeof(mp->mnt_stat.f_mntfromname);
234 bzero(pc, MNAMELEN);
235 *pc++ = '/';
236 *pc++ = '/';
237 pc = strchr(strncpy(pc, vcp->vc_username, pe - pc - 2), 0);
238 if (pc < pe-1) {
239 *(pc++) = '@';
240 pc = strchr(strncpy(pc, vcp->vc_srvname, pe - pc - 2), 0);
241 if (pc < pe - 1) {
242 *(pc++) = '/';
243 strncpy(pc, ssp->ss_name, pe - pc - 2);
244 }
245 }
246 vfs_getnewfsid(mp);
247 error = smbfs_root(mp, LK_EXCLUSIVE, &vp);
248 if (error) {
249 vfs_mount_error(mp, "smbfs_root error: %d", error);
250 goto bad;
251 }
252 VOP_UNLOCK(vp, 0);
253 SMBVDEBUG("root.v_usecount = %d\n", vrefcnt(vp));
254
255#ifdef DIAGNOSTIC
256 SMBERROR("mp=%p\n", mp);
257#endif
258 return error;
259bad:
260 if (smp) {
261 if (smp->sm_hash)
262 free(smp->sm_hash, M_SMBFSHASH);
263 sx_destroy(&smp->sm_hashlock);
264#ifdef SMBFS_USEZONE
265 zfree(smbfsmount_zone, smp);
266#else
267 free(smp, M_SMBFSDATA);
268#endif
269 }
270 if (ssp)
271 smb_share_put(ssp, &scred);
272 return error;
273}
274
275/* Unmount the filesystem described by mp. */
276static int
277smbfs_unmount(struct mount *mp, int mntflags)
278{
279 struct thread *td;
280 struct smbmount *smp = VFSTOSMBFS(mp);
281 struct smb_cred scred;
282 int error, flags;
283
284 SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
285 td = curthread;
286 flags = 0;
287 if (mntflags & MNT_FORCE)
288 flags |= FORCECLOSE;
289 /*
290 * Keep trying to flush the vnode list for the mount while
291 * some are still busy and we are making progress towards
292 * making them not busy. This is needed because smbfs vnodes
293 * reference their parent directory but may appear after their
294 * parent in the list; one pass over the vnode list is not
295 * sufficient in this case.
296 */
297 do {
298 smp->sm_didrele = 0;
299 /* There is 1 extra root vnode reference from smbfs_mount(). */
300 error = vflush(mp, 1, flags, td);
301 } while (error == EBUSY && smp->sm_didrele != 0);
302 if (error)
303 return error;
304 smb_makescred(&scred, td, td->td_ucred);
305 error = smb_share_lock(smp->sm_share, LK_EXCLUSIVE);
306 if (error)
307 return error;
308 smb_share_put(smp->sm_share, &scred);
309 mp->mnt_data = NULL;
310
311 if (smp->sm_hash)
312 free(smp->sm_hash, M_SMBFSHASH);
313 sx_destroy(&smp->sm_hashlock);
314#ifdef SMBFS_USEZONE
315 zfree(smbfsmount_zone, smp);
316#else
317 free(smp, M_SMBFSDATA);
318#endif
319 MNT_ILOCK(mp);
320 mp->mnt_flag &= ~MNT_LOCAL;
321 MNT_IUNLOCK(mp);
322 return error;
323}
324
325/*
326 * Return locked root vnode of a filesystem
327 */
328static int
329smbfs_root(struct mount *mp, int flags, struct vnode **vpp)
330{
331 struct smbmount *smp = VFSTOSMBFS(mp);
332 struct vnode *vp;
333 struct smbnode *np;
334 struct smbfattr fattr;
335 struct thread *td;
336 struct ucred *cred;
337 struct smb_cred scred;
338 int error;
339
340 td = curthread;
341 cred = td->td_ucred;
342
343 if (smp == NULL) {
344 SMBERROR("smp == NULL (bug in umount)\n");
345 vfs_mount_error(mp, "smp == NULL (bug in umount)");
346 return EINVAL;
347 }
348 if (smp->sm_root) {
349 *vpp = SMBTOV(smp->sm_root);
350 return vget(*vpp, LK_EXCLUSIVE | LK_RETRY, td);
351 }
352 smb_makescred(&scred, td, cred);
353 error = smbfs_smb_lookup(NULL, NULL, 0, &fattr, &scred);
354 if (error)
355 return error;
356 error = smbfs_nget(mp, NULL, "TheRooT", 7, &fattr, &vp);
357 if (error)
358 return error;
359 ASSERT_VOP_LOCKED(vp, "smbfs_root");
360 vp->v_vflag |= VV_ROOT;
361 np = VTOSMB(vp);
362 smp->sm_root = np;
363 *vpp = vp;
364 return 0;
365}
366
367/*
368 * Do operations associated with quotas, not supported
369 */
370/* ARGSUSED */
371static int
372smbfs_quotactl(mp, cmd, uid, arg)
373 struct mount *mp;
374 int cmd;
375 uid_t uid;
376 void *arg;
377{
378 SMBVDEBUG("return EOPNOTSUPP\n");
379 return EOPNOTSUPP;
380}
381
382/*ARGSUSED*/
383int
384smbfs_init(struct vfsconf *vfsp)
385{
386#ifdef SMBFS_USEZONE
387 smbfsmount_zone = zinit("SMBFSMOUNT", sizeof(struct smbmount), 0, 0, 1);
388#endif
389 smbfs_pbuf_freecnt = nswbuf / 2 + 1;
390 SMBVDEBUG("done.\n");
391 return 0;
392}
393
394/*ARGSUSED*/
395int
396smbfs_uninit(struct vfsconf *vfsp)
397{
398
399 SMBVDEBUG("done.\n");
400 return 0;
401}
402
403/*
404 * smbfs_statfs call
405 */
406int
407smbfs_statfs(struct mount *mp, struct statfs *sbp)
408{
409 struct thread *td = curthread;
410 struct smbmount *smp = VFSTOSMBFS(mp);
411 struct smbnode *np = smp->sm_root;
412 struct smb_share *ssp = smp->sm_share;
413 struct smb_cred scred;
414 int error = 0;
415
416 if (np == NULL) {
417 vfs_mount_error(mp, "np == NULL");
418 return EINVAL;
419 }
420
421 sbp->f_iosize = SSTOVC(ssp)->vc_txmax; /* optimal transfer block size */
422 smb_makescred(&scred, td, td->td_ucred);
423
424 if (SMB_DIALECT(SSTOVC(ssp)) >= SMB_DIALECT_LANMAN2_0)
425 error = smbfs_smb_statfs2(ssp, sbp, &scred);
426 else
427 error = smbfs_smb_statfs(ssp, sbp, &scred);
428 if (error)
429 return error;
430 sbp->f_flags = 0; /* copy of mount exported flags */
431 return 0;
432}
| 102{
103 struct smbfs_args args;
104 int error;
105
106 error = copyin(data, &args, sizeof(struct smbfs_args));
107 if (error)
108 return error;
109
110 if (args.version != SMBFS_VERSION) {
111 printf("mount version mismatch: kernel=%d, mount=%d\n",
112 SMBFS_VERSION, args.version);
113 return EINVAL;
114 }
115 ma = mount_argf(ma, "dev", "%d", args.dev);
116 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_SOFT, "nosoft");
117 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_INTR, "nointr");
118 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_STRONG, "nostrong");
119 ma = mount_argb(ma, args.flags & SMBFS_MOUNT_HAVE_NLS, "nohave_nls");
120 ma = mount_argb(ma, !(args.flags & SMBFS_MOUNT_NO_LONG), "nolong");
121 ma = mount_arg(ma, "rootpath", args.root_path, -1);
122 ma = mount_argf(ma, "uid", "%d", args.uid);
123 ma = mount_argf(ma, "gid", "%d", args.gid);
124 ma = mount_argf(ma, "file_mode", "%d", args.file_mode);
125 ma = mount_argf(ma, "dir_mode", "%d", args.dir_mode);
126 ma = mount_argf(ma, "caseopt", "%d", args.caseopt);
127
128 error = kernel_mount(ma, flags);
129
130 return (error);
131}
132
133static const char *smbfs_opts[] = {
134 "dev", "soft", "intr", "strong", "have_nls", "long",
135 "mountpoint", "rootpath", "uid", "gid", "file_mode", "dir_mode",
136 "caseopt", "errmsg", NULL
137};
138
139static int
140smbfs_mount(struct mount *mp)
141{
142 struct smbmount *smp = NULL;
143 struct smb_vc *vcp;
144 struct smb_share *ssp = NULL;
145 struct vnode *vp;
146 struct thread *td;
147 struct smb_cred scred;
148 int error, v;
149 char *pc, *pe;
150
151 td = curthread;
152 if (mp->mnt_flag & (MNT_UPDATE | MNT_ROOTFS))
153 return EOPNOTSUPP;
154
155 if (vfs_filteropt(mp->mnt_optnew, smbfs_opts)) {
156 vfs_mount_error(mp, "%s", "Invalid option");
157 return (EINVAL);
158 }
159
160 smb_makescred(&scred, td, td->td_ucred);
161 if (1 != vfs_scanopt(mp->mnt_optnew, "dev", "%d", &v)) {
162 vfs_mount_error(mp, "No dev option");
163 return (EINVAL);
164 }
165 error = smb_dev2share(v, SMBM_EXEC, &scred, &ssp);
166 if (error) {
167 printf("invalid device handle %d (%d)\n", v, error);
168 vfs_mount_error(mp, "invalid device handle %d (%d)\n", v, error);
169 return error;
170 }
171 vcp = SSTOVC(ssp);
172 smb_share_unlock(ssp, 0);
173 mp->mnt_stat.f_iosize = SSTOVC(ssp)->vc_txmax;
174
175#ifdef SMBFS_USEZONE
176 smp = zalloc(smbfsmount_zone);
177#else
178 smp = malloc(sizeof(*smp), M_SMBFSDATA, M_WAITOK);
179#endif
180 if (smp == NULL) {
181 printf("could not alloc smbmount\n");
182 vfs_mount_error(mp, "could not alloc smbmount", v, error);
183 error = ENOMEM;
184 goto bad;
185 }
186 bzero(smp, sizeof(*smp));
187 mp->mnt_data = smp;
188 smp->sm_hash = hashinit(desiredvnodes, M_SMBFSHASH, &smp->sm_hashlen);
189 if (smp->sm_hash == NULL)
190 goto bad;
191 sx_init(&smp->sm_hashlock, "smbfsh");
192 smp->sm_share = ssp;
193 smp->sm_root = NULL;
194 if (1 != vfs_scanopt(mp->mnt_optnew,
195 "caseopt", "%d", &smp->sm_caseopt)) {
196 vfs_mount_error(mp, "Invalid caseopt");
197 error = EINVAL;
198 goto bad;
199 }
200 if (1 != vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v)) {
201 vfs_mount_error(mp, "Invalid uid");
202 error = EINVAL;
203 goto bad;
204 }
205 smp->sm_uid = v;
206
207 if (1 != vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v)) {
208 vfs_mount_error(mp, "Invalid gid");
209 error = EINVAL;
210 goto bad;
211 }
212 smp->sm_gid = v;
213
214 if (1 != vfs_scanopt(mp->mnt_optnew, "file_mode", "%d", &v)) {
215 vfs_mount_error(mp, "Invalid file_mode");
216 error = EINVAL;
217 goto bad;
218 }
219 smp->sm_file_mode = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
220
221 if (1 != vfs_scanopt(mp->mnt_optnew, "dir_mode", "%d", &v)) {
222 vfs_mount_error(mp, "Invalid dir_mode");
223 error = EINVAL;
224 goto bad;
225 }
226 smp->sm_dir_mode = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
227
228 vfs_flagopt(mp->mnt_optnew,
229 "nolong", &smp->sm_flags, SMBFS_MOUNT_NO_LONG);
230
231/* simple_lock_init(&smp->sm_npslock);*/
232 pc = mp->mnt_stat.f_mntfromname;
233 pe = pc + sizeof(mp->mnt_stat.f_mntfromname);
234 bzero(pc, MNAMELEN);
235 *pc++ = '/';
236 *pc++ = '/';
237 pc = strchr(strncpy(pc, vcp->vc_username, pe - pc - 2), 0);
238 if (pc < pe-1) {
239 *(pc++) = '@';
240 pc = strchr(strncpy(pc, vcp->vc_srvname, pe - pc - 2), 0);
241 if (pc < pe - 1) {
242 *(pc++) = '/';
243 strncpy(pc, ssp->ss_name, pe - pc - 2);
244 }
245 }
246 vfs_getnewfsid(mp);
247 error = smbfs_root(mp, LK_EXCLUSIVE, &vp);
248 if (error) {
249 vfs_mount_error(mp, "smbfs_root error: %d", error);
250 goto bad;
251 }
252 VOP_UNLOCK(vp, 0);
253 SMBVDEBUG("root.v_usecount = %d\n", vrefcnt(vp));
254
255#ifdef DIAGNOSTIC
256 SMBERROR("mp=%p\n", mp);
257#endif
258 return error;
259bad:
260 if (smp) {
261 if (smp->sm_hash)
262 free(smp->sm_hash, M_SMBFSHASH);
263 sx_destroy(&smp->sm_hashlock);
264#ifdef SMBFS_USEZONE
265 zfree(smbfsmount_zone, smp);
266#else
267 free(smp, M_SMBFSDATA);
268#endif
269 }
270 if (ssp)
271 smb_share_put(ssp, &scred);
272 return error;
273}
274
275/* Unmount the filesystem described by mp. */
276static int
277smbfs_unmount(struct mount *mp, int mntflags)
278{
279 struct thread *td;
280 struct smbmount *smp = VFSTOSMBFS(mp);
281 struct smb_cred scred;
282 int error, flags;
283
284 SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
285 td = curthread;
286 flags = 0;
287 if (mntflags & MNT_FORCE)
288 flags |= FORCECLOSE;
289 /*
290 * Keep trying to flush the vnode list for the mount while
291 * some are still busy and we are making progress towards
292 * making them not busy. This is needed because smbfs vnodes
293 * reference their parent directory but may appear after their
294 * parent in the list; one pass over the vnode list is not
295 * sufficient in this case.
296 */
297 do {
298 smp->sm_didrele = 0;
299 /* There is 1 extra root vnode reference from smbfs_mount(). */
300 error = vflush(mp, 1, flags, td);
301 } while (error == EBUSY && smp->sm_didrele != 0);
302 if (error)
303 return error;
304 smb_makescred(&scred, td, td->td_ucred);
305 error = smb_share_lock(smp->sm_share, LK_EXCLUSIVE);
306 if (error)
307 return error;
308 smb_share_put(smp->sm_share, &scred);
309 mp->mnt_data = NULL;
310
311 if (smp->sm_hash)
312 free(smp->sm_hash, M_SMBFSHASH);
313 sx_destroy(&smp->sm_hashlock);
314#ifdef SMBFS_USEZONE
315 zfree(smbfsmount_zone, smp);
316#else
317 free(smp, M_SMBFSDATA);
318#endif
319 MNT_ILOCK(mp);
320 mp->mnt_flag &= ~MNT_LOCAL;
321 MNT_IUNLOCK(mp);
322 return error;
323}
324
325/*
326 * Return locked root vnode of a filesystem
327 */
328static int
329smbfs_root(struct mount *mp, int flags, struct vnode **vpp)
330{
331 struct smbmount *smp = VFSTOSMBFS(mp);
332 struct vnode *vp;
333 struct smbnode *np;
334 struct smbfattr fattr;
335 struct thread *td;
336 struct ucred *cred;
337 struct smb_cred scred;
338 int error;
339
340 td = curthread;
341 cred = td->td_ucred;
342
343 if (smp == NULL) {
344 SMBERROR("smp == NULL (bug in umount)\n");
345 vfs_mount_error(mp, "smp == NULL (bug in umount)");
346 return EINVAL;
347 }
348 if (smp->sm_root) {
349 *vpp = SMBTOV(smp->sm_root);
350 return vget(*vpp, LK_EXCLUSIVE | LK_RETRY, td);
351 }
352 smb_makescred(&scred, td, cred);
353 error = smbfs_smb_lookup(NULL, NULL, 0, &fattr, &scred);
354 if (error)
355 return error;
356 error = smbfs_nget(mp, NULL, "TheRooT", 7, &fattr, &vp);
357 if (error)
358 return error;
359 ASSERT_VOP_LOCKED(vp, "smbfs_root");
360 vp->v_vflag |= VV_ROOT;
361 np = VTOSMB(vp);
362 smp->sm_root = np;
363 *vpp = vp;
364 return 0;
365}
366
367/*
368 * Do operations associated with quotas, not supported
369 */
370/* ARGSUSED */
371static int
372smbfs_quotactl(mp, cmd, uid, arg)
373 struct mount *mp;
374 int cmd;
375 uid_t uid;
376 void *arg;
377{
378 SMBVDEBUG("return EOPNOTSUPP\n");
379 return EOPNOTSUPP;
380}
381
382/*ARGSUSED*/
383int
384smbfs_init(struct vfsconf *vfsp)
385{
386#ifdef SMBFS_USEZONE
387 smbfsmount_zone = zinit("SMBFSMOUNT", sizeof(struct smbmount), 0, 0, 1);
388#endif
389 smbfs_pbuf_freecnt = nswbuf / 2 + 1;
390 SMBVDEBUG("done.\n");
391 return 0;
392}
393
394/*ARGSUSED*/
395int
396smbfs_uninit(struct vfsconf *vfsp)
397{
398
399 SMBVDEBUG("done.\n");
400 return 0;
401}
402
403/*
404 * smbfs_statfs call
405 */
406int
407smbfs_statfs(struct mount *mp, struct statfs *sbp)
408{
409 struct thread *td = curthread;
410 struct smbmount *smp = VFSTOSMBFS(mp);
411 struct smbnode *np = smp->sm_root;
412 struct smb_share *ssp = smp->sm_share;
413 struct smb_cred scred;
414 int error = 0;
415
416 if (np == NULL) {
417 vfs_mount_error(mp, "np == NULL");
418 return EINVAL;
419 }
420
421 sbp->f_iosize = SSTOVC(ssp)->vc_txmax; /* optimal transfer block size */
422 smb_makescred(&scred, td, td->td_ucred);
423
424 if (SMB_DIALECT(SSTOVC(ssp)) >= SMB_DIALECT_LANMAN2_0)
425 error = smbfs_smb_statfs2(ssp, sbp, &scred);
426 else
427 error = smbfs_smb_statfs(ssp, sbp, &scred);
428 if (error)
429 return error;
430 sbp->f_flags = 0; /* copy of mount exported flags */
431 return 0;
432}
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