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 */
44 #include <sys/socket.h>
45 #include <sys/socketvar.h>
46 #include <sys/sysctl.h>
48 #include <sys/vnode.h>
49 #include <sys/thread2.h>
50 #include <sys/devfs.h>
58 #define SMB_GETDEV(dev) ((struct smb_dev*)(dev)->si_drv1)
59 #define SMB_CHECKMINOR(dev) do { \
60 sdp = SMB_GETDEV(dev); \
61 if (sdp == NULL) return ENXIO; \
64 static d_open_t nsmb_dev_open;
65 static d_close_t nsmb_dev_close;
66 static d_read_t nsmb_dev_read;
67 static d_write_t nsmb_dev_write;
68 static d_ioctl_t nsmb_dev_ioctl;
69 static d_clone_t nsmbclone;
70 DEVFS_DECLARE_CLONE_BITMAP(nsmb);
72 MODULE_VERSION(netsmb, NSMB_VERSION);
76 static int smb_version = NSMB_VERSION;
79 SYSCTL_DECL(_net_smb);
80 SYSCTL_INT(_net_smb, OID_AUTO, version, CTLFLAG_RD, &smb_version, 0, "");
82 static MALLOC_DEFINE(M_NSMBDEV, "NETSMBDEV", "NET/SMB device");
86 int smb_dev_queue(struct smb_dev *ndp, struct smb_rq *rqp, int prio);
89 static struct dev_ops nsmb_ops = {
90 { NSMB_NAME, NSMB_MAJOR, 0 },
91 .d_open = nsmb_dev_open,
92 .d_close = nsmb_dev_close,
93 .d_read = nsmb_dev_read,
94 .d_write = nsmb_dev_write,
95 .d_ioctl = nsmb_dev_ioctl,
100 nsmb_dev_open(struct dev_open_args *ap)
102 cdev_t dev = ap->a_head.a_dev;
105 sdp = SMB_GETDEV(dev);
106 if (sdp && (sdp->sd_flags & NSMBFL_OPEN))
109 sdp = kmalloc(sizeof(*sdp), M_NSMBDEV, M_WAITOK);
110 dev->si_drv1 = (void*)sdp;
113 * XXX: this is just crazy - make a device for an already passed
114 * device... someone should take care of it.
117 if ((dev->si_flags & SI_NAMED) == 0) {
118 make_dev(&nsmb_ops, minor(dev),
119 ap->a_cred->cr_uid, ap->a_cred->cr_gid,
120 0700, NSMB_NAME"%d", lminor(dev));
123 bzero(sdp, sizeof(*sdp));
125 STAILQ_INIT(&sdp->sd_rqlist);
126 STAILQ_INIT(&sdp->sd_rplist);
127 bzero(&sdp->sd_pollinfo, sizeof(struct kqinfo));
131 sdp->sd_flags |= NSMBFL_OPEN;
137 nsmb_dev_close(struct dev_close_args *ap)
139 cdev_t dev = ap->a_head.a_dev;
142 struct smb_share *ssp;
143 struct smb_cred scred;
147 if ((sdp->sd_flags & NSMBFL_OPEN) == 0) {
151 smb_makescred(&scred, curthread, NULL);
154 smb_share_rele(ssp, &scred);
157 smb_vc_rele(vcp, &scred);
159 smb_flushq(&sdp->sd_rqlist);
160 smb_flushq(&sdp->sd_rplist);
163 kfree(sdp, M_NSMBDEV);
165 devfs_clone_bitmap_put(&DEVFS_CLONE_BITMAP(nsmb), dev->si_uminor);
172 nsmb_dev_ioctl(struct dev_ioctl_args *ap)
174 cdev_t dev = ap->a_head.a_dev;
175 caddr_t data = ap->a_data;
178 struct smb_share *ssp;
179 struct smb_cred scred;
183 if ((sdp->sd_flags & NSMBFL_OPEN) == 0)
186 smb_makescred(&scred, NULL, ap->a_cred);
188 case SMBIOC_OPENSESSION:
191 error = smb_usr_opensession((struct smbioc_ossn*)data,
196 smb_vc_unlock(vcp, 0);
197 sdp->sd_level = SMBL_VC;
199 case SMBIOC_OPENSHARE:
202 if (sdp->sd_vc == NULL)
204 error = smb_usr_openshare(sdp->sd_vc,
205 (struct smbioc_oshare*)data, &scred, &ssp);
209 smb_share_unlock(ssp, 0);
210 sdp->sd_level = SMBL_SHARE;
213 if (sdp->sd_share == NULL)
215 error = smb_usr_simplerequest(sdp->sd_share,
216 (struct smbioc_rq*)data, &scred);
219 if (sdp->sd_share == NULL)
221 error = smb_usr_t2request(sdp->sd_share,
222 (struct smbioc_t2rq*)data, &scred);
224 case SMBIOC_SETFLAGS: {
225 struct smbioc_flags *fl = (struct smbioc_flags*)data;
228 if (fl->ioc_level == SMBL_VC) {
229 if (fl->ioc_mask & SMBV_PERMANENT) {
230 on = fl->ioc_flags & SMBV_PERMANENT;
231 if ((vcp = sdp->sd_vc) == NULL)
233 error = smb_vc_get(vcp, LK_EXCLUSIVE, &scred);
236 if (on && (vcp->obj.co_flags & SMBV_PERMANENT) == 0) {
237 vcp->obj.co_flags |= SMBV_PERMANENT;
239 } else if (!on && (vcp->obj.co_flags & SMBV_PERMANENT)) {
240 vcp->obj.co_flags &= ~SMBV_PERMANENT;
241 smb_vc_rele(vcp, &scred);
243 smb_vc_put(vcp, &scred);
246 } else if (fl->ioc_level == SMBL_SHARE) {
247 if (fl->ioc_mask & SMBS_PERMANENT) {
248 on = fl->ioc_flags & SMBS_PERMANENT;
249 if ((ssp = sdp->sd_share) == NULL)
251 error = smb_share_get(ssp, LK_EXCLUSIVE, &scred);
254 if (on && (ssp->obj.co_flags & SMBS_PERMANENT) == 0) {
255 ssp->obj.co_flags |= SMBS_PERMANENT;
257 } else if (!on && (ssp->obj.co_flags & SMBS_PERMANENT)) {
258 ssp->obj.co_flags &= ~SMBS_PERMANENT;
259 smb_share_rele(ssp, &scred);
261 smb_share_put(ssp, &scred);
270 if (sdp->sd_vc || sdp->sd_share)
274 error = smb_usr_lookup((struct smbioc_lookup*)data, &scred, &vcp, &ssp);
279 smb_vc_unlock(vcp, 0);
280 sdp->sd_level = SMBL_VC;
284 smb_share_unlock(ssp, 0);
285 sdp->sd_level = SMBL_SHARE;
288 case SMBIOC_READ: case SMBIOC_WRITE: {
289 struct smbioc_rw *rwrq = (struct smbioc_rw*)data;
293 if ((ssp = sdp->sd_share) == NULL)
295 iov.iov_base = rwrq->ioc_base;
296 iov.iov_len = rwrq->ioc_cnt;
299 auio.uio_offset = rwrq->ioc_offset;
300 auio.uio_resid = rwrq->ioc_cnt;
301 auio.uio_segflg = UIO_USERSPACE;
302 auio.uio_rw = (ap->a_cmd == SMBIOC_READ) ? UIO_READ : UIO_WRITE;
303 auio.uio_td = curthread;
304 if (ap->a_cmd == SMBIOC_READ)
305 error = smb_read(ssp, rwrq->ioc_fh, &auio, &scred);
307 error = smb_write(ssp, rwrq->ioc_fh, &auio, &scred);
308 rwrq->ioc_cnt -= auio.uio_resid;
318 nsmb_dev_read(struct dev_read_args *ap)
324 nsmb_dev_write(struct dev_write_args *ap)
330 nsmbclone(struct dev_clone_args *ap)
334 unit = devfs_clone_bitmap_get(&DEVFS_CLONE_BITMAP(nsmb), 0);
335 ap->a_dev = make_only_dev(&nsmb_ops, unit, 0, 0, 0600,
336 NSMB_NAME"%d", unit);
342 nsmb_dev_load(module_t mod, int cmd, void *arg)
348 error = smb_sm_init();
351 error = smb_iod_init();
356 make_autoclone_dev(&nsmb_ops, &DEVFS_CLONE_BITMAP(nsmb),
357 nsmbclone, 0, 0, 0700, NSMB_NAME);
359 kprintf("netsmb_dev: loaded\n");
363 error = smb_sm_done();
365 devfs_clone_handler_del(NSMB_NAME);
366 dev_ops_remove_all(&nsmb_ops);
367 devfs_clone_bitmap_uninit(&DEVFS_CLONE_BITMAP(nsmb));
368 kprintf("netsmb_dev: unloaded\n");
377 DEV_MODULE (dev_netsmb, nsmb_dev_load, 0);
380 smb_dev2share(int fd, int mode, struct smb_cred *scred,
381 struct smb_share **sspp)
386 struct smb_share *ssp;
390 KKASSERT(scred->scr_td->td_proc);
392 fp = holdfp(scred->scr_td->td_proc->p_fd, fd, FREAD|FWRITE);
396 vp = (struct vnode*)fp->f_data;
412 error = smb_share_get(ssp, LK_EXCLUSIVE, scred);