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 2016 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 ioc.encrypt = cfg->skc_encrypt; 98 99 (void) memcpy(ioc.machine_uuid, cfg->skc_machine_uuid, sizeof (uuid_t)); 100 (void) memcpy(ioc.negtok, cfg->skc_negtok, sizeof (ioc.negtok)); 101 (void) memcpy(ioc.native_os, cfg->skc_native_os, 102 sizeof (ioc.native_os)); 103 (void) memcpy(ioc.native_lm, cfg->skc_native_lm, 104 sizeof (ioc.native_lm)); 105 106 (void) strlcpy(ioc.nbdomain, cfg->skc_nbdomain, sizeof (ioc.nbdomain)); 107 (void) strlcpy(ioc.fqdn, cfg->skc_fqdn, sizeof (ioc.fqdn)); 108 (void) strlcpy(ioc.hostname, cfg->skc_hostname, sizeof (ioc.hostname)); 109 (void) strlcpy(ioc.system_comment, cfg->skc_system_comment, 110 sizeof (ioc.system_comment)); 111 112 return (smb_kmod_ioctl(SMB_IOC_CONFIG, &ioc.hdr, sizeof (ioc))); 113 } 114 115 int 116 smb_kmod_setgmtoff(int32_t gmtoff) 117 { 118 smb_ioc_gmt_t ioc; 119 120 ioc.offset = gmtoff; 121 return (smb_kmod_ioctl(SMB_IOC_GMTOFF, &ioc.hdr, 122 sizeof (ioc))); 123 } 124 125 int 126 smb_kmod_start(int opipe, int lmshr, int udoor) 127 { 128 smb_ioc_start_t ioc; 129 130 ioc.opipe = opipe; 131 ioc.lmshrd = lmshr; 132 ioc.udoor = udoor; 133 return (smb_kmod_ioctl(SMB_IOC_START, &ioc.hdr, sizeof (ioc))); 134 } 135 136 void 137 smb_kmod_stop(void) 138 { 139 smb_ioc_header_t ioc; 140 141 (void) smb_kmod_ioctl(SMB_IOC_STOP, &ioc, sizeof (ioc)); 142 } 143 144 int 145 smb_kmod_event_notify(uint32_t txid) 146 { 147 smb_ioc_event_t ioc; 148 149 ioc.txid = txid; 150 return (smb_kmod_ioctl(SMB_IOC_EVENT, &ioc.hdr, sizeof (ioc))); 151 } 152 153 int 154 smb_kmod_share(nvlist_t *shrlist) 155 { 156 smb_ioc_share_t *ioc; 157 uint32_t ioclen; 158 char *shrbuf = NULL; 159 size_t bufsz; 160 int rc = ENOMEM; 161 162 if ((rc = nvlist_pack(shrlist, &shrbuf, &bufsz, NV_ENCODE_XDR, 0)) != 0) 163 return (rc); 164 165 ioclen = sizeof (smb_ioc_share_t) + bufsz; 166 167 if ((ioc = malloc(ioclen)) != NULL) { 168 ioc->shrlen = bufsz; 169 bcopy(shrbuf, ioc->shr, bufsz); 170 rc = smb_kmod_ioctl(SMB_IOC_SHARE, &ioc->hdr, ioclen); 171 free(ioc); 172 } 173 174 free(shrbuf); 175 return (rc); 176 } 177 178 int 179 smb_kmod_unshare(nvlist_t *shrlist) 180 { 181 smb_ioc_share_t *ioc; 182 uint32_t ioclen; 183 char *shrbuf = NULL; 184 size_t bufsz; 185 int rc = ENOMEM; 186 187 if ((rc = nvlist_pack(shrlist, &shrbuf, &bufsz, NV_ENCODE_XDR, 0)) != 0) 188 return (rc); 189 190 ioclen = sizeof (smb_ioc_share_t) + bufsz; 191 192 if ((ioc = malloc(ioclen)) != NULL) { 193 ioc->shrlen = bufsz; 194 bcopy(shrbuf, ioc->shr, bufsz); 195 rc = smb_kmod_ioctl(SMB_IOC_UNSHARE, &ioc->hdr, ioclen); 196 free(ioc); 197 } 198 199 free(shrbuf); 200 return (rc); 201 } 202 203 int 204 smb_kmod_shareinfo(char *shrname, boolean_t *shortnames) 205 { 206 smb_ioc_shareinfo_t ioc; 207 int rc; 208 209 bzero(&ioc, sizeof (ioc)); 210 (void) strlcpy(ioc.shrname, shrname, MAXNAMELEN); 211 212 rc = smb_kmod_ioctl(SMB_IOC_SHAREINFO, &ioc.hdr, sizeof (ioc)); 213 if (rc == 0) 214 *shortnames = ioc.shortnames; 215 else 216 *shortnames = B_TRUE; 217 218 return (rc); 219 } 220 221 int 222 smb_kmod_get_open_num(smb_opennum_t *opennum) 223 { 224 smb_ioc_opennum_t ioc; 225 int rc; 226 227 bzero(&ioc, sizeof (ioc)); 228 ioc.qualtype = opennum->qualtype; 229 (void) strlcpy(ioc.qualifier, opennum->qualifier, MAXNAMELEN); 230 231 rc = smb_kmod_ioctl(SMB_IOC_NUMOPEN, &ioc.hdr, sizeof (ioc)); 232 if (rc == 0) { 233 opennum->open_users = ioc.open_users; 234 opennum->open_trees = ioc.open_trees; 235 opennum->open_files = ioc.open_files; 236 } 237 238 return (rc); 239 } 240 241 int 242 smb_kmod_get_spool_doc(uint32_t *spool_num, char *username, 243 char *path, smb_inaddr_t *ipaddr) 244 { 245 smb_ioc_spooldoc_t ioc; 246 int rc; 247 248 bzero(&ioc, sizeof (ioc)); 249 rc = smb_kmod_ioctl(SMB_IOC_SPOOLDOC, &ioc.hdr, sizeof (ioc)); 250 if (rc == 0) { 251 *spool_num = ioc.spool_num; 252 (void) strlcpy(username, ioc.username, MAXNAMELEN); 253 (void) strlcpy(path, ioc.path, MAXPATHLEN); 254 *ipaddr = ioc.ipaddr; 255 } 256 return (rc); 257 } 258 259 /* 260 * Initialization for an smb_kmod_enum request. If this call succeeds, 261 * smb_kmod_enum_fini() must be called later to deallocate resources. 262 */ 263 smb_netsvc_t * 264 smb_kmod_enum_init(smb_svcenum_t *request) 265 { 266 smb_netsvc_t *ns; 267 smb_svcenum_t *svcenum; 268 smb_ioc_svcenum_t *ioc; 269 uint32_t ioclen; 270 271 if ((ns = calloc(1, sizeof (smb_netsvc_t))) == NULL) 272 return (NULL); 273 274 ioclen = sizeof (smb_ioc_svcenum_t) + SMB_IOC_DATA_SIZE; 275 if ((ioc = malloc(ioclen)) == NULL) { 276 free(ns); 277 return (NULL); 278 } 279 280 bzero(ioc, ioclen); 281 svcenum = &ioc->svcenum; 282 svcenum->se_type = request->se_type; 283 svcenum->se_level = request->se_level; 284 svcenum->se_bavail = SMB_IOC_DATA_SIZE; 285 svcenum->se_nlimit = request->se_nlimit; 286 svcenum->se_nskip = request->se_nskip; 287 svcenum->se_buflen = SMB_IOC_DATA_SIZE; 288 289 list_create(&ns->ns_list, sizeof (smb_netsvcitem_t), 290 offsetof(smb_netsvcitem_t, nsi_lnd)); 291 292 ns->ns_ioc = ioc; 293 ns->ns_ioclen = ioclen; 294 return (ns); 295 } 296 297 /* 298 * Cleanup resources allocated via smb_kmod_enum_init and smb_kmod_enum. 299 */ 300 void 301 smb_kmod_enum_fini(smb_netsvc_t *ns) 302 { 303 list_t *lst; 304 smb_netsvcitem_t *item; 305 smb_netuserinfo_t *user; 306 smb_netconnectinfo_t *tree; 307 smb_netfileinfo_t *ofile; 308 uint32_t se_type; 309 310 if (ns == NULL) 311 return; 312 313 lst = &ns->ns_list; 314 se_type = ns->ns_ioc->svcenum.se_type; 315 316 while ((item = list_head(lst)) != NULL) { 317 list_remove(lst, item); 318 319 switch (se_type) { 320 case SMB_SVCENUM_TYPE_USER: 321 user = &item->nsi_un.nsi_user; 322 free(user->ui_domain); 323 free(user->ui_account); 324 free(user->ui_workstation); 325 break; 326 case SMB_SVCENUM_TYPE_TREE: 327 tree = &item->nsi_un.nsi_tree; 328 free(tree->ci_username); 329 free(tree->ci_share); 330 break; 331 case SMB_SVCENUM_TYPE_FILE: 332 ofile = &item->nsi_un.nsi_ofile; 333 free(ofile->fi_path); 334 free(ofile->fi_username); 335 break; 336 default: 337 break; 338 } 339 } 340 341 list_destroy(&ns->ns_list); 342 free(ns->ns_items); 343 free(ns->ns_ioc); 344 free(ns); 345 } 346 347 /* 348 * Enumerate users, connections or files. 349 */ 350 int 351 smb_kmod_enum(smb_netsvc_t *ns) 352 { 353 smb_ioc_svcenum_t *ioc; 354 uint32_t ioclen; 355 smb_svcenum_t *svcenum; 356 smb_netsvcitem_t *items; 357 smb_netuserinfo_t *user; 358 smb_netconnectinfo_t *tree; 359 smb_netfileinfo_t *ofile; 360 uint8_t *data; 361 uint32_t len; 362 uint32_t se_type; 363 uint_t nbytes; 364 int i; 365 int rc; 366 367 ioc = ns->ns_ioc; 368 ioclen = ns->ns_ioclen; 369 rc = smb_kmod_ioctl(SMB_IOC_SVCENUM, &ioc->hdr, ioclen); 370 if (rc != 0) 371 return (rc); 372 373 svcenum = &ioc->svcenum; 374 items = calloc(svcenum->se_nitems, sizeof (smb_netsvcitem_t)); 375 if (items == NULL) 376 return (ENOMEM); 377 378 ns->ns_items = items; 379 se_type = ns->ns_ioc->svcenum.se_type; 380 data = svcenum->se_buf; 381 len = svcenum->se_bused; 382 383 for (i = 0; i < svcenum->se_nitems; ++i) { 384 switch (se_type) { 385 case SMB_SVCENUM_TYPE_USER: 386 user = &items->nsi_un.nsi_user; 387 rc = smb_netuserinfo_decode(user, data, len, &nbytes); 388 break; 389 case SMB_SVCENUM_TYPE_TREE: 390 tree = &items->nsi_un.nsi_tree; 391 rc = smb_netconnectinfo_decode(tree, data, len, 392 &nbytes); 393 break; 394 case SMB_SVCENUM_TYPE_FILE: 395 ofile = &items->nsi_un.nsi_ofile; 396 rc = smb_netfileinfo_decode(ofile, data, len, &nbytes); 397 break; 398 default: 399 rc = -1; 400 break; 401 } 402 403 if (rc != 0) 404 return (EINVAL); 405 406 list_insert_tail(&ns->ns_list, items); 407 408 ++items; 409 data += nbytes; 410 len -= nbytes; 411 } 412 413 return (0); 414 } 415 416 /* 417 * A NULL pointer is a wildcard indicator, which we pass on 418 * as an empty string (by virtue of the bzero). 419 */ 420 int 421 smb_kmod_session_close(const char *client, const char *username) 422 { 423 smb_ioc_session_t ioc; 424 int rc; 425 426 bzero(&ioc, sizeof (ioc)); 427 428 if (client != NULL) 429 (void) strlcpy(ioc.client, client, MAXNAMELEN); 430 if (username != NULL) 431 (void) strlcpy(ioc.username, username, MAXNAMELEN); 432 433 rc = smb_kmod_ioctl(SMB_IOC_SESSION_CLOSE, &ioc.hdr, sizeof (ioc)); 434 return (rc); 435 } 436 437 int 438 smb_kmod_file_close(uint32_t uniqid) 439 { 440 smb_ioc_fileid_t ioc; 441 int rc; 442 443 bzero(&ioc, sizeof (ioc)); 444 ioc.uniqid = uniqid; 445 446 rc = smb_kmod_ioctl(SMB_IOC_FILE_CLOSE, &ioc.hdr, sizeof (ioc)); 447 return (rc); 448 } 449 450 void 451 smb_kmod_unbind(void) 452 { 453 if (smbdrv_fd != -1) { 454 (void) close(smbdrv_fd); 455 smbdrv_fd = -1; 456 } 457 } 458 459 /* 460 * Note: The user-space smbd-d provides it own version of this function 461 * which directly calls the "kernel" module code (in user space). 462 */ 463 int 464 smb_kmod_ioctl(int cmd, smb_ioc_header_t *ioc, uint32_t len) 465 { 466 int rc = EINVAL; 467 468 ioc->version = SMB_IOC_VERSION; 469 ioc->cmd = cmd; 470 ioc->len = len; 471 ioc->crc = 0; 472 ioc->crc = smb_crc_gen((uint8_t *)ioc, sizeof (smb_ioc_header_t)); 473 474 if (smbdrv_fd != -1) { 475 if (ioctl(smbdrv_fd, cmd, ioc) < 0) 476 rc = errno; 477 else 478 rc = 0; 479 } 480 return (rc); 481 } 482