1c398230bSWarner Losh /*- 2681a5bbeSBoris Popov * Copyright (c) 2000-2001 Boris Popov 3681a5bbeSBoris Popov * All rights reserved. 4681a5bbeSBoris Popov * 5681a5bbeSBoris Popov * Redistribution and use in source and binary forms, with or without 6681a5bbeSBoris Popov * modification, are permitted provided that the following conditions 7681a5bbeSBoris Popov * are met: 8681a5bbeSBoris Popov * 1. Redistributions of source code must retain the above copyright 9681a5bbeSBoris Popov * notice, this list of conditions and the following disclaimer. 10681a5bbeSBoris Popov * 2. Redistributions in binary form must reproduce the above copyright 11681a5bbeSBoris Popov * notice, this list of conditions and the following disclaimer in the 12681a5bbeSBoris Popov * documentation and/or other materials provided with the distribution. 13681a5bbeSBoris Popov * 14681a5bbeSBoris Popov * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15681a5bbeSBoris Popov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16681a5bbeSBoris Popov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17681a5bbeSBoris Popov * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18681a5bbeSBoris Popov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19681a5bbeSBoris Popov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20681a5bbeSBoris Popov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21681a5bbeSBoris Popov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22681a5bbeSBoris Popov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23681a5bbeSBoris Popov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24681a5bbeSBoris Popov * SUCH DAMAGE. 25681a5bbeSBoris Popov */ 26ab0de15bSDavid E. O'Brien 27ab0de15bSDavid E. O'Brien #include <sys/cdefs.h> 28ab0de15bSDavid E. O'Brien __FBSDID("$FreeBSD$"); 29ab0de15bSDavid E. O'Brien 30681a5bbeSBoris Popov #include <sys/param.h> 31681a5bbeSBoris Popov #include <sys/kernel.h> 324a144410SRobert Watson #include <sys/capsicum.h> 335dba30f1SPoul-Henning Kamp #include <sys/module.h> 34681a5bbeSBoris Popov #include <sys/systm.h> 35681a5bbeSBoris Popov #include <sys/conf.h> 36681a5bbeSBoris Popov #include <sys/fcntl.h> 37fb919e4dSMark Murray #include <sys/ioccom.h> 38fb919e4dSMark Murray #include <sys/lock.h> 39fb919e4dSMark Murray #include <sys/malloc.h> 40fb919e4dSMark Murray #include <sys/file.h> /* Must come after sys/malloc.h */ 4113438f68SAlfred Perlstein #include <sys/filedesc.h> 42fb919e4dSMark Murray #include <sys/mbuf.h> 43681a5bbeSBoris Popov #include <sys/poll.h> 44fb919e4dSMark Murray #include <sys/proc.h> 45fb919e4dSMark Murray #include <sys/select.h> 46fb919e4dSMark Murray #include <sys/socket.h> 47681a5bbeSBoris Popov #include <sys/socketvar.h> 48681a5bbeSBoris Popov #include <sys/sysctl.h> 49fb919e4dSMark Murray #include <sys/uio.h> 50681a5bbeSBoris Popov #include <sys/vnode.h> 51681a5bbeSBoris Popov 52681a5bbeSBoris Popov #include <net/if.h> 53681a5bbeSBoris Popov 54681a5bbeSBoris Popov #include <netsmb/smb.h> 55681a5bbeSBoris Popov #include <netsmb/smb_conn.h> 56681a5bbeSBoris Popov #include <netsmb/smb_subr.h> 57681a5bbeSBoris Popov #include <netsmb/smb_dev.h> 58681a5bbeSBoris Popov 5992a4d9bcSDavide Italiano static struct cdev *nsmb_dev; 60681a5bbeSBoris Popov 61681a5bbeSBoris Popov static d_open_t nsmb_dev_open; 62681a5bbeSBoris Popov static d_ioctl_t nsmb_dev_ioctl; 63681a5bbeSBoris Popov 64c4f02a89SMax Khon MODULE_DEPEND(netsmb, libiconv, 1, 1, 2); 65681a5bbeSBoris Popov MODULE_VERSION(netsmb, NSMB_VERSION); 66681a5bbeSBoris Popov 67681a5bbeSBoris Popov static int smb_version = NSMB_VERSION; 6892a4d9bcSDavide Italiano struct sx smb_lock; 69681a5bbeSBoris Popov 70681a5bbeSBoris Popov 71681a5bbeSBoris Popov SYSCTL_DECL(_net_smb); 72681a5bbeSBoris Popov SYSCTL_INT(_net_smb, OID_AUTO, version, CTLFLAG_RD, &smb_version, 0, ""); 73681a5bbeSBoris Popov 74681a5bbeSBoris Popov static MALLOC_DEFINE(M_NSMBDEV, "NETSMBDEV", "NET/SMB device"); 75681a5bbeSBoris Popov 76681a5bbeSBoris Popov static struct cdevsw nsmb_cdevsw = { 77dc08ffecSPoul-Henning Kamp .d_version = D_VERSION, 787ac40f5fSPoul-Henning Kamp .d_open = nsmb_dev_open, 797ac40f5fSPoul-Henning Kamp .d_ioctl = nsmb_dev_ioctl, 80fd13f792STim J. Robbins .d_name = NSMB_NAME 81681a5bbeSBoris Popov }; 82681a5bbeSBoris Popov 8392a4d9bcSDavide Italiano static int 8492a4d9bcSDavide Italiano nsmb_dev_init(void) 8592a4d9bcSDavide Italiano { 8692a4d9bcSDavide Italiano 8792a4d9bcSDavide Italiano nsmb_dev = make_dev(&nsmb_cdevsw, 0, UID_ROOT, GID_OPERATOR, 8892a4d9bcSDavide Italiano 0600, "nsmb"); 8992a4d9bcSDavide Italiano if (nsmb_dev == NULL) 9092a4d9bcSDavide Italiano return (ENOMEM); 9192a4d9bcSDavide Italiano return (0); 9292a4d9bcSDavide Italiano } 93681a5bbeSBoris Popov 94681a5bbeSBoris Popov static void 9592a4d9bcSDavide Italiano nsmb_dev_destroy(void) 96681a5bbeSBoris Popov { 97681a5bbeSBoris Popov 9892a4d9bcSDavide Italiano MPASS(nsmb_dev != NULL); 9992a4d9bcSDavide Italiano destroy_dev(nsmb_dev); 10092a4d9bcSDavide Italiano nsmb_dev = NULL; 10192a4d9bcSDavide Italiano } 102339f72c7SRobert Watson 10392a4d9bcSDavide Italiano static struct smb_dev * 10492a4d9bcSDavide Italiano smbdev_alloc(struct cdev *dev) 10592a4d9bcSDavide Italiano { 10692a4d9bcSDavide Italiano struct smb_dev *sdp; 10792a4d9bcSDavide Italiano 10892a4d9bcSDavide Italiano sdp = malloc(sizeof(struct smb_dev), M_NSMBDEV, M_WAITOK | M_ZERO); 10992a4d9bcSDavide Italiano sdp->dev = dev; 11092a4d9bcSDavide Italiano sdp->sd_level = -1; 11192a4d9bcSDavide Italiano sdp->sd_flags |= NSMBFL_OPEN; 11292a4d9bcSDavide Italiano sdp->refcount = 1; 11392a4d9bcSDavide Italiano return (sdp); 11492a4d9bcSDavide Italiano } 11592a4d9bcSDavide Italiano 11692a4d9bcSDavide Italiano void 11792a4d9bcSDavide Italiano sdp_dtor(void *arg) 11892a4d9bcSDavide Italiano { 11992a4d9bcSDavide Italiano struct smb_dev *dev; 12092a4d9bcSDavide Italiano 12192a4d9bcSDavide Italiano dev = (struct smb_dev *)arg; 12292a4d9bcSDavide Italiano SMB_LOCK(); 12392a4d9bcSDavide Italiano sdp_trydestroy(dev); 12492a4d9bcSDavide Italiano SMB_UNLOCK(); 125681a5bbeSBoris Popov } 126681a5bbeSBoris Popov 127681a5bbeSBoris Popov static int 12889c9c53dSPoul-Henning Kamp nsmb_dev_open(struct cdev *dev, int oflags, int devtype, struct thread *td) 129681a5bbeSBoris Popov { 130681a5bbeSBoris Popov struct smb_dev *sdp; 13192a4d9bcSDavide Italiano int error; 132681a5bbeSBoris Popov 13392a4d9bcSDavide Italiano sdp = smbdev_alloc(dev); 13492a4d9bcSDavide Italiano error = devfs_set_cdevpriv(sdp, sdp_dtor); 13592a4d9bcSDavide Italiano if (error) { 13692a4d9bcSDavide Italiano free(sdp, M_NSMBDEV); 13792a4d9bcSDavide Italiano return (error); 138681a5bbeSBoris Popov } 13992a4d9bcSDavide Italiano return (0); 140681a5bbeSBoris Popov } 141681a5bbeSBoris Popov 14292a4d9bcSDavide Italiano void 14392a4d9bcSDavide Italiano sdp_trydestroy(struct smb_dev *sdp) 144681a5bbeSBoris Popov { 145681a5bbeSBoris Popov struct smb_vc *vcp; 146681a5bbeSBoris Popov struct smb_share *ssp; 147afe09751SDavide Italiano struct smb_cred *scred; 148681a5bbeSBoris Popov 14992a4d9bcSDavide Italiano SMB_LOCKASSERT(); 15092a4d9bcSDavide Italiano if (!sdp) 15192a4d9bcSDavide Italiano panic("No smb_dev upon device close"); 15292a4d9bcSDavide Italiano MPASS(sdp->refcount > 0); 15392a4d9bcSDavide Italiano sdp->refcount--; 15492a4d9bcSDavide Italiano if (sdp->refcount) 15592a4d9bcSDavide Italiano return; 156afe09751SDavide Italiano scred = malloc(sizeof(struct smb_cred), M_NSMBDEV, M_WAITOK); 15792a4d9bcSDavide Italiano smb_makescred(scred, curthread, NULL); 158681a5bbeSBoris Popov ssp = sdp->sd_share; 159a4c05984SDavide Italiano if (ssp != NULL) { 160a4c05984SDavide Italiano smb_share_lock(ssp); 161afe09751SDavide Italiano smb_share_rele(ssp, scred); 162a4c05984SDavide Italiano } 163681a5bbeSBoris Popov vcp = sdp->sd_vc; 164a4c05984SDavide Italiano if (vcp != NULL) { 165a4c05984SDavide Italiano smb_vc_lock(vcp); 166afe09751SDavide Italiano smb_vc_rele(vcp, scred); 167a4c05984SDavide Italiano } 168afe09751SDavide Italiano free(scred, M_NSMBDEV); 16992a4d9bcSDavide Italiano free(sdp, M_NSMBDEV); 17092a4d9bcSDavide Italiano return; 171681a5bbeSBoris Popov } 172681a5bbeSBoris Popov 173681a5bbeSBoris Popov 174681a5bbeSBoris Popov static int 17589c9c53dSPoul-Henning Kamp nsmb_dev_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) 176681a5bbeSBoris Popov { 177681a5bbeSBoris Popov struct smb_dev *sdp; 178681a5bbeSBoris Popov struct smb_vc *vcp; 179681a5bbeSBoris Popov struct smb_share *ssp; 180afe09751SDavide Italiano struct smb_cred *scred; 181681a5bbeSBoris Popov int error = 0; 182681a5bbeSBoris Popov 18392a4d9bcSDavide Italiano error = devfs_get_cdevpriv((void **)&sdp); 18492a4d9bcSDavide Italiano if (error) 18592a4d9bcSDavide Italiano return (error); 186afe09751SDavide Italiano scred = malloc(sizeof(struct smb_cred), M_NSMBDEV, M_WAITOK); 18792a4d9bcSDavide Italiano SMB_LOCK(); 188afe09751SDavide Italiano smb_makescred(scred, td, NULL); 189681a5bbeSBoris Popov switch (cmd) { 190681a5bbeSBoris Popov case SMBIOC_OPENSESSION: 191afe09751SDavide Italiano if (sdp->sd_vc) { 192afe09751SDavide Italiano error = EISCONN; 193afe09751SDavide Italiano goto out; 194afe09751SDavide Italiano } 195681a5bbeSBoris Popov error = smb_usr_opensession((struct smbioc_ossn*)data, 196afe09751SDavide Italiano scred, &vcp); 197681a5bbeSBoris Popov if (error) 198681a5bbeSBoris Popov break; 199681a5bbeSBoris Popov sdp->sd_vc = vcp; 200a4c05984SDavide Italiano smb_vc_unlock(vcp); 201681a5bbeSBoris Popov sdp->sd_level = SMBL_VC; 202681a5bbeSBoris Popov break; 203681a5bbeSBoris Popov case SMBIOC_OPENSHARE: 204afe09751SDavide Italiano if (sdp->sd_share) { 205afe09751SDavide Italiano error = EISCONN; 206afe09751SDavide Italiano goto out; 207afe09751SDavide Italiano } 208afe09751SDavide Italiano if (sdp->sd_vc == NULL) { 209afe09751SDavide Italiano error = ENOTCONN; 210afe09751SDavide Italiano goto out; 211afe09751SDavide Italiano } 212681a5bbeSBoris Popov error = smb_usr_openshare(sdp->sd_vc, 213afe09751SDavide Italiano (struct smbioc_oshare*)data, scred, &ssp); 214681a5bbeSBoris Popov if (error) 215681a5bbeSBoris Popov break; 216681a5bbeSBoris Popov sdp->sd_share = ssp; 217a4c05984SDavide Italiano smb_share_unlock(ssp); 218681a5bbeSBoris Popov sdp->sd_level = SMBL_SHARE; 219681a5bbeSBoris Popov break; 220681a5bbeSBoris Popov case SMBIOC_REQUEST: 221afe09751SDavide Italiano if (sdp->sd_share == NULL) { 222afe09751SDavide Italiano error = ENOTCONN; 223afe09751SDavide Italiano goto out; 224afe09751SDavide Italiano } 225681a5bbeSBoris Popov error = smb_usr_simplerequest(sdp->sd_share, 226afe09751SDavide Italiano (struct smbioc_rq*)data, scred); 227681a5bbeSBoris Popov break; 228681a5bbeSBoris Popov case SMBIOC_T2RQ: 229afe09751SDavide Italiano if (sdp->sd_share == NULL) { 230afe09751SDavide Italiano error = ENOTCONN; 231afe09751SDavide Italiano goto out; 232afe09751SDavide Italiano } 233681a5bbeSBoris Popov error = smb_usr_t2request(sdp->sd_share, 234afe09751SDavide Italiano (struct smbioc_t2rq*)data, scred); 235681a5bbeSBoris Popov break; 236681a5bbeSBoris Popov case SMBIOC_SETFLAGS: { 237681a5bbeSBoris Popov struct smbioc_flags *fl = (struct smbioc_flags*)data; 238681a5bbeSBoris Popov int on; 239681a5bbeSBoris Popov 240681a5bbeSBoris Popov if (fl->ioc_level == SMBL_VC) { 241681a5bbeSBoris Popov if (fl->ioc_mask & SMBV_PERMANENT) { 242681a5bbeSBoris Popov on = fl->ioc_flags & SMBV_PERMANENT; 243afe09751SDavide Italiano if ((vcp = sdp->sd_vc) == NULL) { 244afe09751SDavide Italiano error = ENOTCONN; 245afe09751SDavide Italiano goto out; 246afe09751SDavide Italiano } 247a4c05984SDavide Italiano error = smb_vc_get(vcp, scred); 248681a5bbeSBoris Popov if (error) 249681a5bbeSBoris Popov break; 250681a5bbeSBoris Popov if (on && (vcp->obj.co_flags & SMBV_PERMANENT) == 0) { 251681a5bbeSBoris Popov vcp->obj.co_flags |= SMBV_PERMANENT; 252fce6fbfaSBoris Popov smb_vc_ref(vcp); 253681a5bbeSBoris Popov } else if (!on && (vcp->obj.co_flags & SMBV_PERMANENT)) { 254681a5bbeSBoris Popov vcp->obj.co_flags &= ~SMBV_PERMANENT; 255afe09751SDavide Italiano smb_vc_rele(vcp, scred); 256681a5bbeSBoris Popov } 257afe09751SDavide Italiano smb_vc_put(vcp, scred); 258681a5bbeSBoris Popov } else 259681a5bbeSBoris Popov error = EINVAL; 260681a5bbeSBoris Popov } else if (fl->ioc_level == SMBL_SHARE) { 261681a5bbeSBoris Popov if (fl->ioc_mask & SMBS_PERMANENT) { 262681a5bbeSBoris Popov on = fl->ioc_flags & SMBS_PERMANENT; 263afe09751SDavide Italiano if ((ssp = sdp->sd_share) == NULL) { 264afe09751SDavide Italiano error = ENOTCONN; 265afe09751SDavide Italiano goto out; 266afe09751SDavide Italiano } 267a4c05984SDavide Italiano error = smb_share_get(ssp, scred); 268681a5bbeSBoris Popov if (error) 269681a5bbeSBoris Popov break; 270681a5bbeSBoris Popov if (on && (ssp->obj.co_flags & SMBS_PERMANENT) == 0) { 271681a5bbeSBoris Popov ssp->obj.co_flags |= SMBS_PERMANENT; 272fce6fbfaSBoris Popov smb_share_ref(ssp); 273681a5bbeSBoris Popov } else if (!on && (ssp->obj.co_flags & SMBS_PERMANENT)) { 274681a5bbeSBoris Popov ssp->obj.co_flags &= ~SMBS_PERMANENT; 275afe09751SDavide Italiano smb_share_rele(ssp, scred); 276681a5bbeSBoris Popov } 277afe09751SDavide Italiano smb_share_put(ssp, scred); 278681a5bbeSBoris Popov } else 279681a5bbeSBoris Popov error = EINVAL; 280681a5bbeSBoris Popov break; 281681a5bbeSBoris Popov } else 282681a5bbeSBoris Popov error = EINVAL; 283681a5bbeSBoris Popov break; 284681a5bbeSBoris Popov } 285681a5bbeSBoris Popov case SMBIOC_LOOKUP: 286afe09751SDavide Italiano if (sdp->sd_vc || sdp->sd_share) { 287afe09751SDavide Italiano error = EISCONN; 288afe09751SDavide Italiano goto out; 289afe09751SDavide Italiano } 290681a5bbeSBoris Popov vcp = NULL; 291681a5bbeSBoris Popov ssp = NULL; 292afe09751SDavide Italiano error = smb_usr_lookup((struct smbioc_lookup*)data, scred, &vcp, &ssp); 293681a5bbeSBoris Popov if (error) 294681a5bbeSBoris Popov break; 295681a5bbeSBoris Popov if (vcp) { 296681a5bbeSBoris Popov sdp->sd_vc = vcp; 297a4c05984SDavide Italiano smb_vc_unlock(vcp); 298681a5bbeSBoris Popov sdp->sd_level = SMBL_VC; 299681a5bbeSBoris Popov } 300681a5bbeSBoris Popov if (ssp) { 301681a5bbeSBoris Popov sdp->sd_share = ssp; 302a4c05984SDavide Italiano smb_share_unlock(ssp); 303681a5bbeSBoris Popov sdp->sd_level = SMBL_SHARE; 304681a5bbeSBoris Popov } 305681a5bbeSBoris Popov break; 306681a5bbeSBoris Popov case SMBIOC_READ: case SMBIOC_WRITE: { 307681a5bbeSBoris Popov struct smbioc_rw *rwrq = (struct smbioc_rw*)data; 308681a5bbeSBoris Popov struct uio auio; 309681a5bbeSBoris Popov struct iovec iov; 310681a5bbeSBoris Popov 311afe09751SDavide Italiano if ((ssp = sdp->sd_share) == NULL) { 312afe09751SDavide Italiano error = ENOTCONN; 313afe09751SDavide Italiano goto out; 314afe09751SDavide Italiano } 315681a5bbeSBoris Popov iov.iov_base = rwrq->ioc_base; 316681a5bbeSBoris Popov iov.iov_len = rwrq->ioc_cnt; 317681a5bbeSBoris Popov auio.uio_iov = &iov; 318681a5bbeSBoris Popov auio.uio_iovcnt = 1; 319681a5bbeSBoris Popov auio.uio_offset = rwrq->ioc_offset; 320681a5bbeSBoris Popov auio.uio_resid = rwrq->ioc_cnt; 321681a5bbeSBoris Popov auio.uio_segflg = UIO_USERSPACE; 322681a5bbeSBoris Popov auio.uio_rw = (cmd == SMBIOC_READ) ? UIO_READ : UIO_WRITE; 323fce6fbfaSBoris Popov auio.uio_td = td; 324681a5bbeSBoris Popov if (cmd == SMBIOC_READ) 325afe09751SDavide Italiano error = smb_read(ssp, rwrq->ioc_fh, &auio, scred); 326681a5bbeSBoris Popov else 327afe09751SDavide Italiano error = smb_write(ssp, rwrq->ioc_fh, &auio, scred); 328681a5bbeSBoris Popov rwrq->ioc_cnt -= auio.uio_resid; 329681a5bbeSBoris Popov break; 330681a5bbeSBoris Popov } 331681a5bbeSBoris Popov default: 332681a5bbeSBoris Popov error = ENODEV; 333681a5bbeSBoris Popov } 334afe09751SDavide Italiano out: 335afe09751SDavide Italiano free(scred, M_NSMBDEV); 33692a4d9bcSDavide Italiano SMB_UNLOCK(); 337681a5bbeSBoris Popov return error; 338681a5bbeSBoris Popov } 339681a5bbeSBoris Popov 340681a5bbeSBoris Popov static int 341681a5bbeSBoris Popov nsmb_dev_load(module_t mod, int cmd, void *arg) 342681a5bbeSBoris Popov { 343681a5bbeSBoris Popov int error = 0; 344681a5bbeSBoris Popov 345681a5bbeSBoris Popov switch (cmd) { 346681a5bbeSBoris Popov case MOD_LOAD: 347681a5bbeSBoris Popov error = smb_sm_init(); 348681a5bbeSBoris Popov if (error) 349681a5bbeSBoris Popov break; 350681a5bbeSBoris Popov error = smb_iod_init(); 351681a5bbeSBoris Popov if (error) { 352681a5bbeSBoris Popov smb_sm_done(); 353681a5bbeSBoris Popov break; 354681a5bbeSBoris Popov } 35592a4d9bcSDavide Italiano error = nsmb_dev_init(); 35692a4d9bcSDavide Italiano if (error) 35792a4d9bcSDavide Italiano break; 35892a4d9bcSDavide Italiano sx_init(&smb_lock, "samba device lock"); 359681a5bbeSBoris Popov break; 360681a5bbeSBoris Popov case MOD_UNLOAD: 361681a5bbeSBoris Popov smb_iod_done(); 362681a5bbeSBoris Popov error = smb_sm_done(); 36319caf6c0SBoris Popov if (error) 36419caf6c0SBoris Popov break; 36592a4d9bcSDavide Italiano nsmb_dev_destroy(); 36692a4d9bcSDavide Italiano sx_destroy(&smb_lock); 367681a5bbeSBoris Popov break; 368681a5bbeSBoris Popov default: 369681a5bbeSBoris Popov error = EINVAL; 370681a5bbeSBoris Popov break; 371681a5bbeSBoris Popov } 372681a5bbeSBoris Popov return error; 373681a5bbeSBoris Popov } 374681a5bbeSBoris Popov 375681a5bbeSBoris Popov DEV_MODULE (dev_netsmb, nsmb_dev_load, 0); 376681a5bbeSBoris Popov 377681a5bbeSBoris Popov int 378681a5bbeSBoris Popov smb_dev2share(int fd, int mode, struct smb_cred *scred, 37992a4d9bcSDavide Italiano struct smb_share **sspp, struct smb_dev **ssdp) 380681a5bbeSBoris Popov { 3817008be5bSPawel Jakub Dawidek cap_rights_t rights; 38292a4d9bcSDavide Italiano struct file *fp, *fptmp; 383681a5bbeSBoris Popov struct smb_dev *sdp; 384681a5bbeSBoris Popov struct smb_share *ssp; 38592a4d9bcSDavide Italiano struct thread *td; 386681a5bbeSBoris Popov int error; 387681a5bbeSBoris Popov 38892a4d9bcSDavide Italiano td = curthread; 3897008be5bSPawel Jakub Dawidek error = fget(td, fd, cap_rights_init(&rights, CAP_READ), &fp); 39092a4d9bcSDavide Italiano if (error) 39192a4d9bcSDavide Italiano return (error); 39292a4d9bcSDavide Italiano fptmp = td->td_fpop; 39392a4d9bcSDavide Italiano td->td_fpop = fp; 39492a4d9bcSDavide Italiano error = devfs_get_cdevpriv((void **)&sdp); 39592a4d9bcSDavide Italiano td->td_fpop = fptmp; 39692a4d9bcSDavide Italiano fdrop(fp, td); 39792a4d9bcSDavide Italiano if (error || sdp == NULL) 39892a4d9bcSDavide Italiano return (error); 39992a4d9bcSDavide Italiano SMB_LOCK(); 40092a4d9bcSDavide Italiano *ssdp = sdp; 401681a5bbeSBoris Popov ssp = sdp->sd_share; 402426da3bcSAlfred Perlstein if (ssp == NULL) { 40392a4d9bcSDavide Italiano SMB_UNLOCK(); 40492a4d9bcSDavide Italiano return (ENOTCONN); 405426da3bcSAlfred Perlstein } 406a4c05984SDavide Italiano error = smb_share_get(ssp, scred); 40792a4d9bcSDavide Italiano if (error == 0) { 40892a4d9bcSDavide Italiano sdp->refcount++; 409681a5bbeSBoris Popov *sspp = ssp; 41092a4d9bcSDavide Italiano } 41192a4d9bcSDavide Italiano SMB_UNLOCK(); 412426da3bcSAlfred Perlstein return error; 413681a5bbeSBoris Popov } 414681a5bbeSBoris Popov 415