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/netsmb/smb_dev.c,v 1.2.2.1 2001/05/22 08:32:33 bp Exp $
33 * $DragonFly: src/sys/netproto/smb/smb_dev.c,v 1.18 2007/05/08 02:31:42 dillon Exp $
35 #include <sys/param.h>
36 #include <sys/kernel.h>
37 #include <sys/systm.h>
39 #include <sys/device.h>
40 #include <sys/fcntl.h>
41 #include <sys/malloc.h>
42 #include <sys/file.h> /* Must come after sys/malloc.h */
45 #include <sys/select.h>
46 #include <sys/socket.h>
47 #include <sys/socketvar.h>
48 #include <sys/sysctl.h>
50 #include <sys/vnode.h>
51 #include <sys/thread2.h>
52 #include <vfs/devfs/devfs.h>
60 #define SMB_GETDEV(dev) ((struct smb_dev*)(dev)->si_drv1)
61 #define SMB_CHECKMINOR(dev) do { \
62 sdp = SMB_GETDEV(dev); \
63 if (sdp == NULL) return ENXIO; \
66 static d_open_t nsmb_dev_open;
67 static d_close_t nsmb_dev_close;
68 static d_read_t nsmb_dev_read;
69 static d_write_t nsmb_dev_write;
70 static d_ioctl_t nsmb_dev_ioctl;
71 static d_poll_t nsmb_dev_poll;
72 static d_clone_t nsmbclone;
73 DEVFS_DECLARE_CLONE_BITMAP(nsmb);
75 MODULE_VERSION(netsmb, NSMB_VERSION);
79 static int smb_version = NSMB_VERSION;
82 SYSCTL_DECL(_net_smb);
83 SYSCTL_INT(_net_smb, OID_AUTO, version, CTLFLAG_RD, &smb_version, 0, "");
85 static MALLOC_DEFINE(M_NSMBDEV, "NETSMBDEV", "NET/SMB device");
89 int smb_dev_queue(struct smb_dev *ndp, struct smb_rq *rqp, int prio);
92 static struct dev_ops nsmb_ops = {
93 { NSMB_NAME, NSMB_MAJOR, 0 },
94 .d_open = nsmb_dev_open,
95 .d_close = nsmb_dev_close,
96 .d_read = nsmb_dev_read,
97 .d_write = nsmb_dev_write,
98 .d_ioctl = nsmb_dev_ioctl,
99 .d_poll = nsmb_dev_poll,
104 nsmb_dev_open(struct dev_open_args *ap)
106 cdev_t dev = ap->a_head.a_dev;
109 sdp = SMB_GETDEV(dev);
110 if (sdp && (sdp->sd_flags & NSMBFL_OPEN))
113 sdp = kmalloc(sizeof(*sdp), M_NSMBDEV, M_WAITOK);
114 dev->si_drv1 = (void*)sdp;
117 * XXX: this is just crazy - make a device for an already passed
118 * device... someone should take care of it.
121 if ((dev->si_flags & SI_NAMED) == 0) {
122 make_dev(&nsmb_ops, minor(dev),
123 ap->a_cred->cr_uid, ap->a_cred->cr_gid,
124 0700, NSMB_NAME"%d", lminor(dev));
127 bzero(sdp, sizeof(*sdp));
129 STAILQ_INIT(&sdp->sd_rqlist);
130 STAILQ_INIT(&sdp->sd_rplist);
131 bzero(&sdp->sd_pollinfo, sizeof(struct selinfo));
135 sdp->sd_flags |= NSMBFL_OPEN;
141 nsmb_dev_close(struct dev_close_args *ap)
143 cdev_t dev = ap->a_head.a_dev;
146 struct smb_share *ssp;
147 struct smb_cred scred;
151 if ((sdp->sd_flags & NSMBFL_OPEN) == 0) {
155 smb_makescred(&scred, curthread, NULL);
158 smb_share_rele(ssp, &scred);
161 smb_vc_rele(vcp, &scred);
163 smb_flushq(&sdp->sd_rqlist);
164 smb_flushq(&sdp->sd_rplist);
167 kfree(sdp, M_NSMBDEV);
169 devfs_clone_bitmap_put(&DEVFS_CLONE_BITMAP(nsmb), dev->si_uminor);
176 nsmb_dev_ioctl(struct dev_ioctl_args *ap)
178 cdev_t dev = ap->a_head.a_dev;
179 caddr_t data = ap->a_data;
182 struct smb_share *ssp;
183 struct smb_cred scred;
187 if ((sdp->sd_flags & NSMBFL_OPEN) == 0)
190 smb_makescred(&scred, NULL, ap->a_cred);
192 case SMBIOC_OPENSESSION:
195 error = smb_usr_opensession((struct smbioc_ossn*)data,
200 smb_vc_unlock(vcp, 0);
201 sdp->sd_level = SMBL_VC;
203 case SMBIOC_OPENSHARE:
206 if (sdp->sd_vc == NULL)
208 error = smb_usr_openshare(sdp->sd_vc,
209 (struct smbioc_oshare*)data, &scred, &ssp);
213 smb_share_unlock(ssp, 0);
214 sdp->sd_level = SMBL_SHARE;
217 if (sdp->sd_share == NULL)
219 error = smb_usr_simplerequest(sdp->sd_share,
220 (struct smbioc_rq*)data, &scred);
223 if (sdp->sd_share == NULL)
225 error = smb_usr_t2request(sdp->sd_share,
226 (struct smbioc_t2rq*)data, &scred);
228 case SMBIOC_SETFLAGS: {
229 struct smbioc_flags *fl = (struct smbioc_flags*)data;
232 if (fl->ioc_level == SMBL_VC) {
233 if (fl->ioc_mask & SMBV_PERMANENT) {
234 on = fl->ioc_flags & SMBV_PERMANENT;
235 if ((vcp = sdp->sd_vc) == NULL)
237 error = smb_vc_get(vcp, LK_EXCLUSIVE, &scred);
240 if (on && (vcp->obj.co_flags & SMBV_PERMANENT) == 0) {
241 vcp->obj.co_flags |= SMBV_PERMANENT;
243 } else if (!on && (vcp->obj.co_flags & SMBV_PERMANENT)) {
244 vcp->obj.co_flags &= ~SMBV_PERMANENT;
245 smb_vc_rele(vcp, &scred);
247 smb_vc_put(vcp, &scred);
250 } else if (fl->ioc_level == SMBL_SHARE) {
251 if (fl->ioc_mask & SMBS_PERMANENT) {
252 on = fl->ioc_flags & SMBS_PERMANENT;
253 if ((ssp = sdp->sd_share) == NULL)
255 error = smb_share_get(ssp, LK_EXCLUSIVE, &scred);
258 if (on && (ssp->obj.co_flags & SMBS_PERMANENT) == 0) {
259 ssp->obj.co_flags |= SMBS_PERMANENT;
261 } else if (!on && (ssp->obj.co_flags & SMBS_PERMANENT)) {
262 ssp->obj.co_flags &= ~SMBS_PERMANENT;
263 smb_share_rele(ssp, &scred);
265 smb_share_put(ssp, &scred);
274 if (sdp->sd_vc || sdp->sd_share)
278 error = smb_usr_lookup((struct smbioc_lookup*)data, &scred, &vcp, &ssp);
283 smb_vc_unlock(vcp, 0);
284 sdp->sd_level = SMBL_VC;
288 smb_share_unlock(ssp, 0);
289 sdp->sd_level = SMBL_SHARE;
292 case SMBIOC_READ: case SMBIOC_WRITE: {
293 struct smbioc_rw *rwrq = (struct smbioc_rw*)data;
297 if ((ssp = sdp->sd_share) == NULL)
299 iov.iov_base = rwrq->ioc_base;
300 iov.iov_len = rwrq->ioc_cnt;
303 auio.uio_offset = rwrq->ioc_offset;
304 auio.uio_resid = rwrq->ioc_cnt;
305 auio.uio_segflg = UIO_USERSPACE;
306 auio.uio_rw = (ap->a_cmd == SMBIOC_READ) ? UIO_READ : UIO_WRITE;
307 auio.uio_td = curthread;
308 if (ap->a_cmd == SMBIOC_READ)
309 error = smb_read(ssp, rwrq->ioc_fh, &auio, &scred);
311 error = smb_write(ssp, rwrq->ioc_fh, &auio, &scred);
312 rwrq->ioc_cnt -= auio.uio_resid;
322 nsmb_dev_read(struct dev_read_args *ap)
328 nsmb_dev_write(struct dev_write_args *ap)
334 nsmb_dev_poll(struct dev_poll_args *ap)
340 nsmbclone(struct dev_clone_args *ap)
344 unit = devfs_clone_bitmap_get(&DEVFS_CLONE_BITMAP(nsmb), 0);
345 ap->a_dev = make_only_dev(&nsmb_ops, unit, 0, 0, 0600,
346 NSMB_NAME"%d", unit);
352 nsmb_dev_load(module_t mod, int cmd, void *arg)
358 error = smb_sm_init();
361 error = smb_iod_init();
367 make_dev(&nsmb_ops, 0, 0, 0, 0700, NSMB_NAME);
368 devfs_clone_bitmap_init(&DEVFS_CLONE_BITMAP(nsmb));
369 devfs_clone_handler_add(NSMB_NAME, nsmbclone);
371 kprintf("netsmb_dev: loaded\n");
375 error = smb_sm_done();
377 devfs_clone_handler_del(NSMB_NAME);
378 dev_ops_remove_all(&nsmb_ops);
379 devfs_clone_bitmap_uninit(&DEVFS_CLONE_BITMAP(nsmb));
380 kprintf("netsmb_dev: unloaded\n");
389 DEV_MODULE (dev_netsmb, nsmb_dev_load, 0);
392 smb_dev2share(int fd, int mode, struct smb_cred *scred,
393 struct smb_share **sspp)
398 struct smb_share *ssp;
402 KKASSERT(scred->scr_td->td_proc);
404 fp = holdfp(scred->scr_td->td_proc->p_fd, fd, FREAD|FWRITE);
408 vp = (struct vnode*)fp->f_data;
424 error = smb_share_get(ssp, LK_EXCLUSIVE, scred);