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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
33 #include <sys/systm.h>
35 #include <sys/fcntl.h>
36 #include <sys/ioccom.h>
38 #include <sys/malloc.h>
39 #include <sys/file.h> /* Must come after sys/malloc.h */
40 #include <sys/filedesc.h>
44 #include <sys/select.h>
45 #include <sys/socket.h>
46 #include <sys/socketvar.h>
47 #include <sys/sysctl.h>
49 #include <sys/vnode.h>
53 #include <netsmb/smb.h>
54 #include <netsmb/smb_conn.h>
55 #include <netsmb/smb_subr.h>
56 #include <netsmb/smb_dev.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_ioctl_t nsmb_dev_ioctl;
68 MODULE_DEPEND(netsmb, libiconv, 1, 1, 2);
69 MODULE_VERSION(netsmb, NSMB_VERSION);
71 static int smb_version = NSMB_VERSION;
74 SYSCTL_DECL(_net_smb);
75 SYSCTL_INT(_net_smb, OID_AUTO, version, CTLFLAG_RD, &smb_version, 0, "");
77 static MALLOC_DEFINE(M_NSMBDEV, "NETSMBDEV", "NET/SMB device");
81 int smb_dev_queue(struct smb_dev *ndp, struct smb_rq *rqp, int prio);
84 static struct cdevsw nsmb_cdevsw = {
85 .d_version = D_VERSION,
86 .d_flags = D_NEEDGIANT | D_NEEDMINOR,
87 .d_open = nsmb_dev_open,
88 .d_close = nsmb_dev_close,
89 .d_ioctl = nsmb_dev_ioctl,
93 static eventhandler_tag nsmb_dev_tag;
94 static struct clonedevs *nsmb_clones;
97 nsmb_dev_clone(void *arg, struct ucred *cred, char *name, int namelen,
105 if (strcmp(name, NSMB_NAME) == 0)
107 else if (dev_stdclone(name, NULL, NSMB_NAME, &u) != 1)
109 i = clone_create(&nsmb_clones, &nsmb_cdevsw, &u, dev, 0);
111 *dev = make_dev_credf(MAKEDEV_REF, &nsmb_cdevsw, u, cred,
112 UID_ROOT, GID_WHEEL, 0600, "%s%d", NSMB_NAME, u);
116 nsmb_dev_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
119 struct ucred *cred = td->td_ucred;
122 sdp = SMB_GETDEV(dev);
123 if (sdp && (sdp->sd_flags & NSMBFL_OPEN))
126 sdp = malloc(sizeof(*sdp), M_NSMBDEV, M_WAITOK);
127 dev->si_drv1 = (void*)sdp;
130 * XXX: this is just crazy - make a device for an already passed device...
131 * someone should take care of it.
133 if ((dev->si_flags & SI_NAMED) == 0)
134 make_dev(&nsmb_cdevsw, dev2unit(dev), cred->cr_uid,
135 cred->cr_gid, 0700, NSMB_NAME"%d", dev2unit(dev));
136 bzero(sdp, sizeof(*sdp));
138 STAILQ_INIT(&sdp->sd_rqlist);
139 STAILQ_INIT(&sdp->sd_rplist);
140 bzero(&sdp->sd_pollinfo, sizeof(struct selinfo));
144 sdp->sd_flags |= NSMBFL_OPEN;
150 nsmb_dev_close(struct cdev *dev, int flag, int fmt, struct thread *td)
154 struct smb_share *ssp;
155 struct smb_cred *scred;
158 scred = malloc(sizeof(struct smb_cred), M_NSMBDEV, M_WAITOK);
161 if ((sdp->sd_flags & NSMBFL_OPEN) == 0) {
163 free(scred, M_NSMBDEV);
166 smb_makescred(scred, td, NULL);
169 smb_share_rele(ssp, scred);
172 smb_vc_rele(vcp, scred);
174 smb_flushq(&sdp->sd_rqlist);
175 smb_flushq(&sdp->sd_rplist);
178 free(sdp, M_NSMBDEV);
179 destroy_dev_sched(dev);
181 free(scred, M_NSMBDEV);
187 nsmb_dev_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
191 struct smb_share *ssp;
192 struct smb_cred *scred;
196 if ((sdp->sd_flags & NSMBFL_OPEN) == 0)
199 scred = malloc(sizeof(struct smb_cred), M_NSMBDEV, M_WAITOK);
200 smb_makescred(scred, td, NULL);
202 case SMBIOC_OPENSESSION:
207 error = smb_usr_opensession((struct smbioc_ossn*)data,
212 smb_vc_unlock(vcp, 0);
213 sdp->sd_level = SMBL_VC;
215 case SMBIOC_OPENSHARE:
220 if (sdp->sd_vc == NULL) {
224 error = smb_usr_openshare(sdp->sd_vc,
225 (struct smbioc_oshare*)data, scred, &ssp);
229 smb_share_unlock(ssp, 0);
230 sdp->sd_level = SMBL_SHARE;
233 if (sdp->sd_share == NULL) {
237 error = smb_usr_simplerequest(sdp->sd_share,
238 (struct smbioc_rq*)data, scred);
241 if (sdp->sd_share == NULL) {
245 error = smb_usr_t2request(sdp->sd_share,
246 (struct smbioc_t2rq*)data, scred);
248 case SMBIOC_SETFLAGS: {
249 struct smbioc_flags *fl = (struct smbioc_flags*)data;
252 if (fl->ioc_level == SMBL_VC) {
253 if (fl->ioc_mask & SMBV_PERMANENT) {
254 on = fl->ioc_flags & SMBV_PERMANENT;
255 if ((vcp = sdp->sd_vc) == NULL) {
259 error = smb_vc_get(vcp, LK_EXCLUSIVE, scred);
262 if (on && (vcp->obj.co_flags & SMBV_PERMANENT) == 0) {
263 vcp->obj.co_flags |= SMBV_PERMANENT;
265 } else if (!on && (vcp->obj.co_flags & SMBV_PERMANENT)) {
266 vcp->obj.co_flags &= ~SMBV_PERMANENT;
267 smb_vc_rele(vcp, scred);
269 smb_vc_put(vcp, scred);
272 } else if (fl->ioc_level == SMBL_SHARE) {
273 if (fl->ioc_mask & SMBS_PERMANENT) {
274 on = fl->ioc_flags & SMBS_PERMANENT;
275 if ((ssp = sdp->sd_share) == NULL) {
279 error = smb_share_get(ssp, LK_EXCLUSIVE, scred);
282 if (on && (ssp->obj.co_flags & SMBS_PERMANENT) == 0) {
283 ssp->obj.co_flags |= SMBS_PERMANENT;
285 } else if (!on && (ssp->obj.co_flags & SMBS_PERMANENT)) {
286 ssp->obj.co_flags &= ~SMBS_PERMANENT;
287 smb_share_rele(ssp, scred);
289 smb_share_put(ssp, scred);
298 if (sdp->sd_vc || sdp->sd_share) {
304 error = smb_usr_lookup((struct smbioc_lookup*)data, scred, &vcp, &ssp);
309 smb_vc_unlock(vcp, 0);
310 sdp->sd_level = SMBL_VC;
314 smb_share_unlock(ssp, 0);
315 sdp->sd_level = SMBL_SHARE;
318 case SMBIOC_READ: case SMBIOC_WRITE: {
319 struct smbioc_rw *rwrq = (struct smbioc_rw*)data;
323 if ((ssp = sdp->sd_share) == NULL) {
327 iov.iov_base = rwrq->ioc_base;
328 iov.iov_len = rwrq->ioc_cnt;
331 auio.uio_offset = rwrq->ioc_offset;
332 auio.uio_resid = rwrq->ioc_cnt;
333 auio.uio_segflg = UIO_USERSPACE;
334 auio.uio_rw = (cmd == SMBIOC_READ) ? UIO_READ : UIO_WRITE;
336 if (cmd == SMBIOC_READ)
337 error = smb_read(ssp, rwrq->ioc_fh, &auio, scred);
339 error = smb_write(ssp, rwrq->ioc_fh, &auio, scred);
340 rwrq->ioc_cnt -= auio.uio_resid;
347 free(scred, M_NSMBDEV);
352 nsmb_dev_load(module_t mod, int cmd, void *arg)
358 error = smb_sm_init();
361 error = smb_iod_init();
366 clone_setup(&nsmb_clones);
367 nsmb_dev_tag = EVENTHANDLER_REGISTER(dev_clone, nsmb_dev_clone, 0, 1000);
371 error = smb_sm_done();
374 EVENTHANDLER_DEREGISTER(dev_clone, nsmb_dev_tag);
375 drain_dev_clone_events();
376 clone_cleanup(&nsmb_clones);
377 destroy_dev_drain(&nsmb_cdevsw);
386 DEV_MODULE (dev_netsmb, nsmb_dev_load, 0);
389 * Convert a file descriptor to appropriate smb_share pointer
392 nsmb_getfp(struct filedesc* fdp, int fd, int flag)
397 if ((fp = fget_locked(fdp, fd)) == NULL || (fp->f_flag & flag) == 0) {
398 FILEDESC_SUNLOCK(fdp);
402 FILEDESC_SUNLOCK(fdp);
407 smb_dev2share(int fd, int mode, struct smb_cred *scred,
408 struct smb_share **sspp)
413 struct smb_share *ssp;
417 fp = nsmb_getfp(scred->scr_td->td_proc->p_fd, fd, FREAD | FWRITE);
422 fdrop(fp, curthread);
425 if (vp->v_type != VCHR) {
426 fdrop(fp, curthread);
433 fdrop(fp, curthread);
436 error = smb_share_get(ssp, LK_EXCLUSIVE, scred);
439 fdrop(fp, curthread);