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>
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;
73 MODULE_VERSION(netsmb, NSMB_VERSION);
77 static int smb_version = NSMB_VERSION;
80 SYSCTL_DECL(_net_smb);
81 SYSCTL_INT(_net_smb, OID_AUTO, version, CTLFLAG_RD, &smb_version, 0, "");
83 static MALLOC_DEFINE(M_NSMBDEV, "NETSMBDEV", "NET/SMB device");
87 int smb_dev_queue(struct smb_dev *ndp, struct smb_rq *rqp, int prio);
90 static struct dev_ops nsmb_ops = {
91 { NSMB_NAME, NSMB_MAJOR, 0 },
92 .d_open = nsmb_dev_open,
93 .d_close = nsmb_dev_close,
94 .d_read = nsmb_dev_read,
95 .d_write = nsmb_dev_write,
96 .d_ioctl = nsmb_dev_ioctl,
97 .d_poll = nsmb_dev_poll,
102 nsmb_dev_open(struct dev_open_args *ap)
104 cdev_t dev = ap->a_head.a_dev;
107 sdp = SMB_GETDEV(dev);
108 if (sdp && (sdp->sd_flags & NSMBFL_OPEN))
111 sdp = kmalloc(sizeof(*sdp), M_NSMBDEV, M_WAITOK);
112 dev->si_drv1 = (void*)sdp;
115 * XXX: this is just crazy - make a device for an already passed
116 * device... someone should take care of it.
118 if ((dev->si_flags & SI_NAMED) == 0) {
119 make_dev(&nsmb_ops, minor(dev),
120 ap->a_cred->cr_uid, ap->a_cred->cr_gid,
121 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 selinfo));
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);
170 nsmb_dev_ioctl(struct dev_ioctl_args *ap)
172 cdev_t dev = ap->a_head.a_dev;
173 caddr_t data = ap->a_data;
176 struct smb_share *ssp;
177 struct smb_cred scred;
181 if ((sdp->sd_flags & NSMBFL_OPEN) == 0)
184 smb_makescred(&scred, NULL, ap->a_cred);
186 case SMBIOC_OPENSESSION:
189 error = smb_usr_opensession((struct smbioc_ossn*)data,
194 smb_vc_unlock(vcp, 0);
195 sdp->sd_level = SMBL_VC;
197 case SMBIOC_OPENSHARE:
200 if (sdp->sd_vc == NULL)
202 error = smb_usr_openshare(sdp->sd_vc,
203 (struct smbioc_oshare*)data, &scred, &ssp);
207 smb_share_unlock(ssp, 0);
208 sdp->sd_level = SMBL_SHARE;
211 if (sdp->sd_share == NULL)
213 error = smb_usr_simplerequest(sdp->sd_share,
214 (struct smbioc_rq*)data, &scred);
217 if (sdp->sd_share == NULL)
219 error = smb_usr_t2request(sdp->sd_share,
220 (struct smbioc_t2rq*)data, &scred);
222 case SMBIOC_SETFLAGS: {
223 struct smbioc_flags *fl = (struct smbioc_flags*)data;
226 if (fl->ioc_level == SMBL_VC) {
227 if (fl->ioc_mask & SMBV_PERMANENT) {
228 on = fl->ioc_flags & SMBV_PERMANENT;
229 if ((vcp = sdp->sd_vc) == NULL)
231 error = smb_vc_get(vcp, LK_EXCLUSIVE, &scred);
234 if (on && (vcp->obj.co_flags & SMBV_PERMANENT) == 0) {
235 vcp->obj.co_flags |= SMBV_PERMANENT;
237 } else if (!on && (vcp->obj.co_flags & SMBV_PERMANENT)) {
238 vcp->obj.co_flags &= ~SMBV_PERMANENT;
239 smb_vc_rele(vcp, &scred);
241 smb_vc_put(vcp, &scred);
244 } else if (fl->ioc_level == SMBL_SHARE) {
245 if (fl->ioc_mask & SMBS_PERMANENT) {
246 on = fl->ioc_flags & SMBS_PERMANENT;
247 if ((ssp = sdp->sd_share) == NULL)
249 error = smb_share_get(ssp, LK_EXCLUSIVE, &scred);
252 if (on && (ssp->obj.co_flags & SMBS_PERMANENT) == 0) {
253 ssp->obj.co_flags |= SMBS_PERMANENT;
255 } else if (!on && (ssp->obj.co_flags & SMBS_PERMANENT)) {
256 ssp->obj.co_flags &= ~SMBS_PERMANENT;
257 smb_share_rele(ssp, &scred);
259 smb_share_put(ssp, &scred);
268 if (sdp->sd_vc || sdp->sd_share)
272 error = smb_usr_lookup((struct smbioc_lookup*)data, &scred, &vcp, &ssp);
277 smb_vc_unlock(vcp, 0);
278 sdp->sd_level = SMBL_VC;
282 smb_share_unlock(ssp, 0);
283 sdp->sd_level = SMBL_SHARE;
286 case SMBIOC_READ: case SMBIOC_WRITE: {
287 struct smbioc_rw *rwrq = (struct smbioc_rw*)data;
291 if ((ssp = sdp->sd_share) == NULL)
293 iov.iov_base = rwrq->ioc_base;
294 iov.iov_len = rwrq->ioc_cnt;
297 auio.uio_offset = rwrq->ioc_offset;
298 auio.uio_resid = rwrq->ioc_cnt;
299 auio.uio_segflg = UIO_USERSPACE;
300 auio.uio_rw = (ap->a_cmd == SMBIOC_READ) ? UIO_READ : UIO_WRITE;
301 auio.uio_td = curthread;
302 if (ap->a_cmd == SMBIOC_READ)
303 error = smb_read(ssp, rwrq->ioc_fh, &auio, &scred);
305 error = smb_write(ssp, rwrq->ioc_fh, &auio, &scred);
306 rwrq->ioc_cnt -= auio.uio_resid;
316 nsmb_dev_read(struct dev_read_args *ap)
322 nsmb_dev_write(struct dev_write_args *ap)
328 nsmb_dev_poll(struct dev_poll_args *ap)
334 nsmb_dev_load(module_t mod, int cmd, void *arg)
340 error = smb_sm_init();
343 error = smb_iod_init();
348 dev_ops_add(&nsmb_ops, 0, 0);
349 kprintf("netsmb_dev: loaded\n");
353 error = smb_sm_done();
355 dev_ops_remove(&nsmb_ops, 0, 0);
356 kprintf("netsmb_dev: unloaded\n");
365 DEV_MODULE (dev_netsmb, nsmb_dev_load, 0);
368 smb_dev2share(int fd, int mode, struct smb_cred *scred,
369 struct smb_share **sspp)
374 struct smb_share *ssp;
378 KKASSERT(scred->scr_td->td_proc);
380 fp = holdfp(scred->scr_td->td_proc->p_fd, fd, FREAD|FWRITE);
384 vp = (struct vnode*)fp->f_data;
400 error = smb_share_get(ssp, LK_EXCLUSIVE, scred);