1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2015 Nexenta Systems, Inc. All rights reserved. 24 * Copyright 2017 Joyent, Inc. 25 */ 26 27 #include <sys/types.h> 28 #include <sys/stat.h> 29 #include <sys/ioccom.h> 30 #include <sys/param.h> 31 #include <stddef.h> 32 #include <stdio.h> 33 #include <string.h> 34 #include <strings.h> 35 #include <stdlib.h> 36 #include <unistd.h> 37 #include <fcntl.h> 38 #include <errno.h> 39 40 #include <smbsrv/smb_xdr.h> 41 #include <smbsrv/smbinfo.h> 42 #include <smbsrv/smb_ioctl.h> 43 #include <smbsrv/libsmb.h> 44 45 #define SMBDRV_DEVICE_PATH "/dev/smbsrv" 46 47 int smb_kmod_ioctl(int, smb_ioc_header_t *, uint32_t); 48 49 50 int smbdrv_fd = -1; 51 52 int 53 smb_kmod_bind(void) 54 { 55 if (smbdrv_fd != -1) 56 (void) close(smbdrv_fd); 57 58 if ((smbdrv_fd = open(SMBDRV_DEVICE_PATH, 0)) < 0) { 59 smbdrv_fd = -1; 60 return (errno); 61 } 62 63 return (0); 64 } 65 66 boolean_t 67 smb_kmod_isbound(void) 68 { 69 return ((smbdrv_fd == -1) ? B_FALSE : B_TRUE); 70 } 71 72 /* See also: smbsrv smb_server_store_cfg */ 73 int 74 smb_kmod_setcfg(smb_kmod_cfg_t *cfg) 75 { 76 smb_ioc_cfg_t ioc; 77 78 ioc.maxworkers = cfg->skc_maxworkers; 79 ioc.maxconnections = cfg->skc_maxconnections; 80 ioc.keepalive = cfg->skc_keepalive; 81 ioc.restrict_anon = cfg->skc_restrict_anon; 82 ioc.signing_enable = cfg->skc_signing_enable; 83 ioc.signing_required = cfg->skc_signing_required; 84 ioc.oplock_enable = cfg->skc_oplock_enable; 85 ioc.sync_enable = cfg->skc_sync_enable; 86 ioc.secmode = cfg->skc_secmode; 87 ioc.netbios_enable = cfg->skc_netbios_enable; 88 ioc.ipv6_enable = cfg->skc_ipv6_enable; 89 ioc.print_enable = cfg->skc_print_enable; 90 ioc.traverse_mounts = cfg->skc_traverse_mounts; 91 ioc.max_protocol = cfg->skc_max_protocol; 92 ioc.exec_flags = cfg->skc_execflags; 93 ioc.negtok_len = cfg->skc_negtok_len; 94 ioc.version = cfg->skc_version; 95 ioc.initial_credits = cfg->skc_initial_credits; 96 ioc.maximum_credits = cfg->skc_maximum_credits; 97 98 (void) memcpy(ioc.machine_uuid, cfg->skc_machine_uuid, sizeof (uuid_t)); 99 (void) memcpy(ioc.negtok, cfg->skc_negtok, sizeof (ioc.negtok)); 100 (void) memcpy(ioc.native_os, cfg->skc_native_os, 101 sizeof (ioc.native_os)); 102 (void) memcpy(ioc.native_lm, cfg->skc_native_lm, 103 sizeof (ioc.native_lm)); 104 105 (void) strlcpy(ioc.nbdomain, cfg->skc_nbdomain, sizeof (ioc.nbdomain)); 106 (void) strlcpy(ioc.fqdn, cfg->skc_fqdn, sizeof (ioc.fqdn)); 107 (void) strlcpy(ioc.hostname, cfg->skc_hostname, sizeof (ioc.hostname)); 108 (void) strlcpy(ioc.system_comment, cfg->skc_system_comment, 109 sizeof (ioc.system_comment)); 110 111 return (smb_kmod_ioctl(SMB_IOC_CONFIG, &ioc.hdr, sizeof (ioc))); 112 } 113 114 int 115 smb_kmod_setgmtoff(int32_t gmtoff) 116 { 117 smb_ioc_gmt_t ioc; 118 119 ioc.offset = gmtoff; 120 return (smb_kmod_ioctl(SMB_IOC_GMTOFF, &ioc.hdr, 121 sizeof (ioc))); 122 } 123 124 int 125 smb_kmod_start(int opipe, int lmshr, int udoor) 126 { 127 smb_ioc_start_t ioc; 128 129 ioc.opipe = opipe; 130 ioc.lmshrd = lmshr; 131 ioc.udoor = udoor; 132 return (smb_kmod_ioctl(SMB_IOC_START, &ioc.hdr, sizeof (ioc))); 133 } 134 135 void 136 smb_kmod_stop(void) 137 { 138 smb_ioc_header_t ioc; 139 140 (void) smb_kmod_ioctl(SMB_IOC_STOP, &ioc, sizeof (ioc)); 141 } 142 143 int 144 smb_kmod_event_notify(uint32_t txid) 145 { 146 smb_ioc_event_t ioc; 147 148 ioc.txid = txid; 149 return (smb_kmod_ioctl(SMB_IOC_EVENT, &ioc.hdr, sizeof (ioc))); 150 } 151 152 int 153 smb_kmod_share(nvlist_t *shrlist) 154 { 155 smb_ioc_share_t *ioc; 156 uint32_t ioclen; 157 char *shrbuf = NULL; 158 size_t bufsz; 159 int rc = ENOMEM; 160 161 if ((rc = nvlist_pack(shrlist, &shrbuf, &bufsz, NV_ENCODE_XDR, 0)) != 0) 162 return (rc); 163 164 ioclen = sizeof (smb_ioc_share_t) + bufsz; 165 166 if ((ioc = malloc(ioclen)) != NULL) { 167 ioc->shrlen = bufsz; 168 bcopy(shrbuf, ioc->shr, bufsz); 169 rc = smb_kmod_ioctl(SMB_IOC_SHARE, &ioc->hdr, ioclen); 170 free(ioc); 171 } 172 173 free(shrbuf); 174 return (rc); 175 } 176 177 int 178 smb_kmod_unshare(nvlist_t *shrlist) 179 { 180 smb_ioc_share_t *ioc; 181 uint32_t ioclen; 182 char *shrbuf = NULL; 183 size_t bufsz; 184 int rc = ENOMEM; 185 186 if ((rc = nvlist_pack(shrlist, &shrbuf, &bufsz, NV_ENCODE_XDR, 0)) != 0) 187 return (rc); 188 189 ioclen = sizeof (smb_ioc_share_t) + bufsz; 190 191 if ((ioc = malloc(ioclen)) != NULL) { 192 ioc->shrlen = bufsz; 193 bcopy(shrbuf, ioc->shr, bufsz); 194 rc = smb_kmod_ioctl(SMB_IOC_UNSHARE, &ioc->hdr, ioclen); 195 free(ioc); 196 } 197 198 free(shrbuf); 199 return (rc); 200 } 201 202 int 203 smb_kmod_shareinfo(char *shrname, boolean_t *shortnames) 204 { 205 smb_ioc_shareinfo_t ioc; 206 int rc; 207 208 bzero(&ioc, sizeof (ioc)); 209 (void) strlcpy(ioc.shrname, shrname, MAXNAMELEN); 210 211 rc = smb_kmod_ioctl(SMB_IOC_SHAREINFO, &ioc.hdr, sizeof (ioc)); 212 if (rc == 0) 213 *shortnames = ioc.shortnames; 214 else 215 *shortnames = B_TRUE; 216 217 return (rc); 218 } 219 220 int 221 smb_kmod_get_open_num(smb_opennum_t *opennum) 222 { 223 smb_ioc_opennum_t ioc; 224 int rc; 225 226 bzero(&ioc, sizeof (ioc)); 227 ioc.qualtype = opennum->qualtype; 228 (void) strlcpy(ioc.qualifier, opennum->qualifier, MAXNAMELEN); 229 230 rc = smb_kmod_ioctl(SMB_IOC_NUMOPEN, &ioc.hdr, sizeof (ioc)); 231 if (rc == 0) { 232 opennum->open_users = ioc.open_users; 233 opennum->open_trees = ioc.open_trees; 234 opennum->open_files = ioc.open_files; 235 } 236 237 return (rc); 238 } 239 240 int 241 smb_kmod_get_spool_doc(uint32_t *spool_num, char *username, 242 char *path, smb_inaddr_t *ipaddr) 243 { 244 smb_ioc_spooldoc_t ioc; 245 int rc; 246 247 bzero(&ioc, sizeof (ioc)); 248 rc = smb_kmod_ioctl(SMB_IOC_SPOOLDOC, &ioc.hdr, sizeof (ioc)); 249 if (rc == 0) { 250 *spool_num = ioc.spool_num; 251 (void) strlcpy(username, ioc.username, MAXNAMELEN); 252 (void) strlcpy(path, ioc.path, MAXPATHLEN); 253 *ipaddr = ioc.ipaddr; 254 } 255 return (rc); 256 } 257 258 /* 259 * Initialization for an smb_kmod_enum request. If this call succeeds, 260 * smb_kmod_enum_fini() must be called later to deallocate resources. 261 */ 262 smb_netsvc_t * 263 smb_kmod_enum_init(smb_svcenum_t *request) 264 { 265 smb_netsvc_t *ns; 266 smb_svcenum_t *svcenum; 267 smb_ioc_svcenum_t *ioc; 268 uint32_t ioclen; 269 270 if ((ns = calloc(1, sizeof (smb_netsvc_t))) == NULL) 271 return (NULL); 272 273 ioclen = sizeof (smb_ioc_svcenum_t) + SMB_IOC_DATA_SIZE; 274 if ((ioc = malloc(ioclen)) == NULL) { 275 free(ns); 276 return (NULL); 277 } 278 279 bzero(ioc, ioclen); 280 svcenum = &ioc->svcenum; 281 svcenum->se_type = request->se_type; 282 svcenum->se_level = request->se_level; 283 svcenum->se_bavail = SMB_IOC_DATA_SIZE; 284 svcenum->se_nlimit = request->se_nlimit; 285 svcenum->se_nskip = request->se_nskip; 286 svcenum->se_buflen = SMB_IOC_DATA_SIZE; 287 288 list_create(&ns->ns_list, sizeof (smb_netsvcitem_t), 289 offsetof(smb_netsvcitem_t, nsi_lnd)); 290 291 ns->ns_ioc = ioc; 292 ns->ns_ioclen = ioclen; 293 return (ns); 294 } 295 296 /* 297 * Cleanup resources allocated via smb_kmod_enum_init and smb_kmod_enum. 298 */ 299 void 300 smb_kmod_enum_fini(smb_netsvc_t *ns) 301 { 302 list_t *lst; 303 smb_netsvcitem_t *item; 304 smb_netuserinfo_t *user; 305 smb_netconnectinfo_t *tree; 306 smb_netfileinfo_t *ofile; 307 uint32_t se_type; 308 309 if (ns == NULL) 310 return; 311 312 lst = &ns->ns_list; 313 se_type = ns->ns_ioc->svcenum.se_type; 314 315 while ((item = list_head(lst)) != NULL) { 316 list_remove(lst, item); 317 318 switch (se_type) { 319 case SMB_SVCENUM_TYPE_USER: 320 user = &item->nsi_un.nsi_user; 321 free(user->ui_domain); 322 free(user->ui_account); 323 free(user->ui_workstation); 324 break; 325 case SMB_SVCENUM_TYPE_TREE: 326 tree = &item->nsi_un.nsi_tree; 327 free(tree->ci_username); 328 free(tree->ci_share); 329 break; 330 case SMB_SVCENUM_TYPE_FILE: 331 ofile = &item->nsi_un.nsi_ofile; 332 free(ofile->fi_path); 333 free(ofile->fi_username); 334 break; 335 default: 336 break; 337 } 338 } 339 340 list_destroy(&ns->ns_list); 341 free(ns->ns_items); 342 free(ns->ns_ioc); 343 free(ns); 344 } 345 346 /* 347 * Enumerate users, connections or files. 348 */ 349 int 350 smb_kmod_enum(smb_netsvc_t *ns) 351 { 352 smb_ioc_svcenum_t *ioc; 353 uint32_t ioclen; 354 smb_svcenum_t *svcenum; 355 smb_netsvcitem_t *items; 356 smb_netuserinfo_t *user; 357 smb_netconnectinfo_t *tree; 358 smb_netfileinfo_t *ofile; 359 uint8_t *data; 360 uint32_t len; 361 uint32_t se_type; 362 uint_t nbytes; 363 int i; 364 int rc; 365 366 ioc = ns->ns_ioc; 367 ioclen = ns->ns_ioclen; 368 rc = smb_kmod_ioctl(SMB_IOC_SVCENUM, &ioc->hdr, ioclen); 369 if (rc != 0) 370 return (rc); 371 372 svcenum = &ioc->svcenum; 373 items = calloc(svcenum->se_nitems, sizeof (smb_netsvcitem_t)); 374 if (items == NULL) 375 return (ENOMEM); 376 377 ns->ns_items = items; 378 se_type = ns->ns_ioc->svcenum.se_type; 379 data = svcenum->se_buf; 380 len = svcenum->se_bused; 381 382 for (i = 0; i < svcenum->se_nitems; ++i) { 383 switch (se_type) { 384 case SMB_SVCENUM_TYPE_USER: 385 user = &items->nsi_un.nsi_user; 386 rc = smb_netuserinfo_decode(user, data, len, &nbytes); 387 break; 388 case SMB_SVCENUM_TYPE_TREE: 389 tree = &items->nsi_un.nsi_tree; 390 rc = smb_netconnectinfo_decode(tree, data, len, 391 &nbytes); 392 break; 393 case SMB_SVCENUM_TYPE_FILE: 394 ofile = &items->nsi_un.nsi_ofile; 395 rc = smb_netfileinfo_decode(ofile, data, len, &nbytes); 396 break; 397 default: 398 rc = -1; 399 break; 400 } 401 402 if (rc != 0) 403 return (EINVAL); 404 405 list_insert_tail(&ns->ns_list, items); 406 407 ++items; 408 data += nbytes; 409 len -= nbytes; 410 } 411 412 return (0); 413 } 414 415 /* 416 * A NULL pointer is a wildcard indicator, which we pass on 417 * as an empty string (by virtue of the bzero). 418 */ 419 int 420 smb_kmod_session_close(const char *client, const char *username) 421 { 422 smb_ioc_session_t ioc; 423 int rc; 424 425 bzero(&ioc, sizeof (ioc)); 426 427 if (client != NULL) 428 (void) strlcpy(ioc.client, client, MAXNAMELEN); 429 if (username != NULL) 430 (void) strlcpy(ioc.username, username, MAXNAMELEN); 431 432 rc = smb_kmod_ioctl(SMB_IOC_SESSION_CLOSE, &ioc.hdr, sizeof (ioc)); 433 return (rc); 434 } 435 436 int 437 smb_kmod_file_close(uint32_t uniqid) 438 { 439 smb_ioc_fileid_t ioc; 440 int rc; 441 442 bzero(&ioc, sizeof (ioc)); 443 ioc.uniqid = uniqid; 444 445 rc = smb_kmod_ioctl(SMB_IOC_FILE_CLOSE, &ioc.hdr, sizeof (ioc)); 446 return (rc); 447 } 448 449 void 450 smb_kmod_unbind(void) 451 { 452 if (smbdrv_fd != -1) { 453 (void) close(smbdrv_fd); 454 smbdrv_fd = -1; 455 } 456 } 457 458 /* 459 * Note: The user-space smbd-d provides it own version of this function 460 * which directly calls the "kernel" module code (in user space). 461 */ 462 int 463 smb_kmod_ioctl(int cmd, smb_ioc_header_t *ioc, uint32_t len) 464 { 465 int rc = EINVAL; 466 467 ioc->version = SMB_IOC_VERSION; 468 ioc->cmd = cmd; 469 ioc->len = len; 470 ioc->crc = 0; 471 ioc->crc = smb_crc_gen((uint8_t *)ioc, sizeof (smb_ioc_header_t)); 472 473 if (smbdrv_fd != -1) { 474 if (ioctl(smbdrv_fd, cmd, ioc) < 0) 475 rc = errno; 476 else 477 rc = 0; 478 } 479 return (rc); 480 } 481