1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5441d80aaSlling * Common Development and Distribution License (the "License"). 6441d80aaSlling * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 22c67d9675Seschrock * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 27fa9e4066Sahrens 28fa9e4066Sahrens #include <sys/types.h> 29fa9e4066Sahrens #include <sys/param.h> 30fa9e4066Sahrens #include <sys/errno.h> 31fa9e4066Sahrens #include <sys/uio.h> 32fa9e4066Sahrens #include <sys/buf.h> 33fa9e4066Sahrens #include <sys/modctl.h> 34fa9e4066Sahrens #include <sys/open.h> 35fa9e4066Sahrens #include <sys/file.h> 36fa9e4066Sahrens #include <sys/kmem.h> 37fa9e4066Sahrens #include <sys/conf.h> 38fa9e4066Sahrens #include <sys/cmn_err.h> 39fa9e4066Sahrens #include <sys/stat.h> 40fa9e4066Sahrens #include <sys/zfs_ioctl.h> 41fa9e4066Sahrens #include <sys/zap.h> 42fa9e4066Sahrens #include <sys/spa.h> 43fa9e4066Sahrens #include <sys/vdev.h> 44fa9e4066Sahrens #include <sys/dmu.h> 45fa9e4066Sahrens #include <sys/dsl_dir.h> 46fa9e4066Sahrens #include <sys/dsl_dataset.h> 47fa9e4066Sahrens #include <sys/dsl_prop.h> 48fa9e4066Sahrens #include <sys/ddi.h> 49fa9e4066Sahrens #include <sys/sunddi.h> 50fa9e4066Sahrens #include <sys/sunldi.h> 51fa9e4066Sahrens #include <sys/policy.h> 52fa9e4066Sahrens #include <sys/zone.h> 53fa9e4066Sahrens #include <sys/nvpair.h> 54fa9e4066Sahrens #include <sys/pathname.h> 55fa9e4066Sahrens #include <sys/mount.h> 56fa9e4066Sahrens #include <sys/sdt.h> 57fa9e4066Sahrens #include <sys/fs/zfs.h> 58fa9e4066Sahrens #include <sys/zfs_ctldir.h> 59*a2eea2e1Sahrens #include <sys/zvol.h> 60fa9e4066Sahrens 61fa9e4066Sahrens #include "zfs_namecheck.h" 62e9dbad6fSeschrock #include "zfs_prop.h" 63fa9e4066Sahrens 64fa9e4066Sahrens extern struct modlfs zfs_modlfs; 65fa9e4066Sahrens 66fa9e4066Sahrens extern void zfs_init(void); 67fa9e4066Sahrens extern void zfs_fini(void); 68fa9e4066Sahrens 69fa9e4066Sahrens ldi_ident_t zfs_li = NULL; 70fa9e4066Sahrens dev_info_t *zfs_dip; 71fa9e4066Sahrens 72fa9e4066Sahrens typedef int zfs_ioc_func_t(zfs_cmd_t *); 73e9dbad6fSeschrock typedef int zfs_secpolicy_func_t(const char *, cred_t *); 74fa9e4066Sahrens 75fa9e4066Sahrens typedef struct zfs_ioc_vec { 76fa9e4066Sahrens zfs_ioc_func_t *zvec_func; 77fa9e4066Sahrens zfs_secpolicy_func_t *zvec_secpolicy; 78fa9e4066Sahrens enum { 79fa9e4066Sahrens no_name, 80fa9e4066Sahrens pool_name, 81fa9e4066Sahrens dataset_name 82fa9e4066Sahrens } zvec_namecheck; 83fa9e4066Sahrens } zfs_ioc_vec_t; 84fa9e4066Sahrens 85fa9e4066Sahrens /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ 86fa9e4066Sahrens void 87fa9e4066Sahrens __dprintf(const char *file, const char *func, int line, const char *fmt, ...) 88fa9e4066Sahrens { 89fa9e4066Sahrens const char *newfile; 90fa9e4066Sahrens char buf[256]; 91fa9e4066Sahrens va_list adx; 92fa9e4066Sahrens 93fa9e4066Sahrens /* 94fa9e4066Sahrens * Get rid of annoying "../common/" prefix to filename. 95fa9e4066Sahrens */ 96fa9e4066Sahrens newfile = strrchr(file, '/'); 97fa9e4066Sahrens if (newfile != NULL) { 98fa9e4066Sahrens newfile = newfile + 1; /* Get rid of leading / */ 99fa9e4066Sahrens } else { 100fa9e4066Sahrens newfile = file; 101fa9e4066Sahrens } 102fa9e4066Sahrens 103fa9e4066Sahrens va_start(adx, fmt); 104fa9e4066Sahrens (void) vsnprintf(buf, sizeof (buf), fmt, adx); 105fa9e4066Sahrens va_end(adx); 106fa9e4066Sahrens 107fa9e4066Sahrens /* 108fa9e4066Sahrens * To get this data, use the zfs-dprintf probe as so: 109fa9e4066Sahrens * dtrace -q -n 'zfs-dprintf \ 110fa9e4066Sahrens * /stringof(arg0) == "dbuf.c"/ \ 111fa9e4066Sahrens * {printf("%s: %s", stringof(arg1), stringof(arg3))}' 112fa9e4066Sahrens * arg0 = file name 113fa9e4066Sahrens * arg1 = function name 114fa9e4066Sahrens * arg2 = line number 115fa9e4066Sahrens * arg3 = message 116fa9e4066Sahrens */ 117fa9e4066Sahrens DTRACE_PROBE4(zfs__dprintf, 118fa9e4066Sahrens char *, newfile, char *, func, int, line, char *, buf); 119fa9e4066Sahrens } 120fa9e4066Sahrens 121fa9e4066Sahrens /* 122fa9e4066Sahrens * Policy for top-level read operations (list pools). Requires no privileges, 123fa9e4066Sahrens * and can be used in the local zone, as there is no associated dataset. 124fa9e4066Sahrens */ 125fa9e4066Sahrens /* ARGSUSED */ 126fa9e4066Sahrens static int 127e9dbad6fSeschrock zfs_secpolicy_none(const char *unused1, cred_t *cr) 128fa9e4066Sahrens { 129fa9e4066Sahrens return (0); 130fa9e4066Sahrens } 131fa9e4066Sahrens 132fa9e4066Sahrens /* 133fa9e4066Sahrens * Policy for dataset read operations (list children, get statistics). Requires 134fa9e4066Sahrens * no privileges, but must be visible in the local zone. 135fa9e4066Sahrens */ 136fa9e4066Sahrens /* ARGSUSED */ 137fa9e4066Sahrens static int 138e9dbad6fSeschrock zfs_secpolicy_read(const char *dataset, cred_t *cr) 139fa9e4066Sahrens { 140fa9e4066Sahrens if (INGLOBALZONE(curproc) || 141fa9e4066Sahrens zone_dataset_visible(dataset, NULL)) 142fa9e4066Sahrens return (0); 143fa9e4066Sahrens 144fa9e4066Sahrens return (ENOENT); 145fa9e4066Sahrens } 146fa9e4066Sahrens 147fa9e4066Sahrens static int 148fa9e4066Sahrens zfs_dozonecheck(const char *dataset, cred_t *cr) 149fa9e4066Sahrens { 150fa9e4066Sahrens uint64_t zoned; 151fa9e4066Sahrens int writable = 1; 152fa9e4066Sahrens 153fa9e4066Sahrens /* 154fa9e4066Sahrens * The dataset must be visible by this zone -- check this first 155fa9e4066Sahrens * so they don't see EPERM on something they shouldn't know about. 156fa9e4066Sahrens */ 157fa9e4066Sahrens if (!INGLOBALZONE(curproc) && 158fa9e4066Sahrens !zone_dataset_visible(dataset, &writable)) 159fa9e4066Sahrens return (ENOENT); 160fa9e4066Sahrens 161fa9e4066Sahrens if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) 162fa9e4066Sahrens return (ENOENT); 163fa9e4066Sahrens 164fa9e4066Sahrens if (INGLOBALZONE(curproc)) { 165fa9e4066Sahrens /* 166fa9e4066Sahrens * If the fs is zoned, only root can access it from the 167fa9e4066Sahrens * global zone. 168fa9e4066Sahrens */ 169fa9e4066Sahrens if (secpolicy_zfs(cr) && zoned) 170fa9e4066Sahrens return (EPERM); 171fa9e4066Sahrens } else { 172fa9e4066Sahrens /* 173fa9e4066Sahrens * If we are in a local zone, the 'zoned' property must be set. 174fa9e4066Sahrens */ 175fa9e4066Sahrens if (!zoned) 176fa9e4066Sahrens return (EPERM); 177fa9e4066Sahrens 178fa9e4066Sahrens /* must be writable by this zone */ 179fa9e4066Sahrens if (!writable) 180fa9e4066Sahrens return (EPERM); 181fa9e4066Sahrens } 182fa9e4066Sahrens return (0); 183fa9e4066Sahrens } 184fa9e4066Sahrens 185fa9e4066Sahrens /* 186fa9e4066Sahrens * Policy for dataset write operations (create children, set properties, etc). 187fa9e4066Sahrens * Requires SYS_MOUNT privilege, and must be writable in the local zone. 188fa9e4066Sahrens */ 189fa9e4066Sahrens int 190e9dbad6fSeschrock zfs_secpolicy_write(const char *dataset, cred_t *cr) 191fa9e4066Sahrens { 192fa9e4066Sahrens int error; 193fa9e4066Sahrens 194fa9e4066Sahrens if (error = zfs_dozonecheck(dataset, cr)) 195fa9e4066Sahrens return (error); 196fa9e4066Sahrens 197fa9e4066Sahrens return (secpolicy_zfs(cr)); 198fa9e4066Sahrens } 199fa9e4066Sahrens 200fa9e4066Sahrens /* 201fa9e4066Sahrens * Policy for operations that want to write a dataset's parent: 202fa9e4066Sahrens * create, destroy, snapshot, clone, restore. 203fa9e4066Sahrens */ 204fa9e4066Sahrens static int 205e9dbad6fSeschrock zfs_secpolicy_parent(const char *dataset, cred_t *cr) 206fa9e4066Sahrens { 207fa9e4066Sahrens char parentname[MAXNAMELEN]; 208fa9e4066Sahrens char *cp; 209fa9e4066Sahrens 210fa9e4066Sahrens /* 211fa9e4066Sahrens * Remove the @bla or /bla from the end of the name to get the parent. 212fa9e4066Sahrens */ 213fa9e4066Sahrens (void) strncpy(parentname, dataset, sizeof (parentname)); 214fa9e4066Sahrens cp = strrchr(parentname, '@'); 215fa9e4066Sahrens if (cp != NULL) { 216fa9e4066Sahrens cp[0] = '\0'; 217fa9e4066Sahrens } else { 218fa9e4066Sahrens cp = strrchr(parentname, '/'); 219fa9e4066Sahrens if (cp == NULL) 220fa9e4066Sahrens return (ENOENT); 221fa9e4066Sahrens cp[0] = '\0'; 222fa9e4066Sahrens 223fa9e4066Sahrens } 224fa9e4066Sahrens 225e9dbad6fSeschrock return (zfs_secpolicy_write(parentname, cr)); 226fa9e4066Sahrens } 227fa9e4066Sahrens 228fa9e4066Sahrens /* 229fa9e4066Sahrens * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires 230fa9e4066Sahrens * SYS_CONFIG privilege, which is not available in a local zone. 231fa9e4066Sahrens */ 232fa9e4066Sahrens /* ARGSUSED */ 233fa9e4066Sahrens static int 234e9dbad6fSeschrock zfs_secpolicy_config(const char *unused, cred_t *cr) 235fa9e4066Sahrens { 236fa9e4066Sahrens if (secpolicy_sys_config(cr, B_FALSE) != 0) 237fa9e4066Sahrens return (EPERM); 238fa9e4066Sahrens 239fa9e4066Sahrens return (0); 240fa9e4066Sahrens } 241fa9e4066Sahrens 242ea8dc4b6Seschrock /* 243ea8dc4b6Seschrock * Policy for fault injection. Requires all privileges. 244ea8dc4b6Seschrock */ 245ea8dc4b6Seschrock /* ARGSUSED */ 246ea8dc4b6Seschrock static int 247e9dbad6fSeschrock zfs_secpolicy_inject(const char *unused, cred_t *cr) 248ea8dc4b6Seschrock { 249ea8dc4b6Seschrock return (secpolicy_zinject(cr)); 250ea8dc4b6Seschrock } 251ea8dc4b6Seschrock 252fa9e4066Sahrens /* 253fa9e4066Sahrens * Returns the nvlist as specified by the user in the zfs_cmd_t. 254fa9e4066Sahrens */ 255fa9e4066Sahrens static int 256e9dbad6fSeschrock get_nvlist(zfs_cmd_t *zc, nvlist_t **nvp) 257fa9e4066Sahrens { 258fa9e4066Sahrens char *packed; 259fa9e4066Sahrens size_t size; 260fa9e4066Sahrens int error; 261fa9e4066Sahrens nvlist_t *config = NULL; 262fa9e4066Sahrens 263fa9e4066Sahrens /* 264e9dbad6fSeschrock * Read in and unpack the user-supplied nvlist. 265fa9e4066Sahrens */ 266e9dbad6fSeschrock if ((size = zc->zc_nvlist_src_size) == 0) 267fa9e4066Sahrens return (EINVAL); 268fa9e4066Sahrens 269fa9e4066Sahrens packed = kmem_alloc(size, KM_SLEEP); 270fa9e4066Sahrens 271e9dbad6fSeschrock if ((error = xcopyin((void *)(uintptr_t)zc->zc_nvlist_src, packed, 272fa9e4066Sahrens size)) != 0) { 273fa9e4066Sahrens kmem_free(packed, size); 274fa9e4066Sahrens return (error); 275fa9e4066Sahrens } 276fa9e4066Sahrens 277fa9e4066Sahrens if ((error = nvlist_unpack(packed, size, &config, 0)) != 0) { 278fa9e4066Sahrens kmem_free(packed, size); 279fa9e4066Sahrens return (error); 280fa9e4066Sahrens } 281fa9e4066Sahrens 282fa9e4066Sahrens kmem_free(packed, size); 283fa9e4066Sahrens 284fa9e4066Sahrens *nvp = config; 285fa9e4066Sahrens return (0); 286fa9e4066Sahrens } 287fa9e4066Sahrens 288e9dbad6fSeschrock static int 289e9dbad6fSeschrock put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) 290e9dbad6fSeschrock { 291e9dbad6fSeschrock char *packed = NULL; 292e9dbad6fSeschrock size_t size; 293e9dbad6fSeschrock int error; 294e9dbad6fSeschrock 295e9dbad6fSeschrock VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); 296e9dbad6fSeschrock 297e9dbad6fSeschrock if (size > zc->zc_nvlist_dst_size) { 298e9dbad6fSeschrock error = ENOMEM; 299e9dbad6fSeschrock } else { 300e9dbad6fSeschrock VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, 301e9dbad6fSeschrock KM_SLEEP) == 0); 302e9dbad6fSeschrock error = xcopyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, 303e9dbad6fSeschrock size); 304e9dbad6fSeschrock kmem_free(packed, size); 305e9dbad6fSeschrock } 306e9dbad6fSeschrock 307e9dbad6fSeschrock zc->zc_nvlist_dst_size = size; 308e9dbad6fSeschrock return (error); 309e9dbad6fSeschrock } 310e9dbad6fSeschrock 311fa9e4066Sahrens static int 312fa9e4066Sahrens zfs_ioc_pool_create(zfs_cmd_t *zc) 313fa9e4066Sahrens { 314fa9e4066Sahrens int error; 315fa9e4066Sahrens nvlist_t *config; 316fa9e4066Sahrens 317e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) != 0) 318fa9e4066Sahrens return (error); 319fa9e4066Sahrens 320e9dbad6fSeschrock error = spa_create(zc->zc_name, config, zc->zc_value[0] == '\0' ? 321e9dbad6fSeschrock NULL : zc->zc_value); 322fa9e4066Sahrens 323fa9e4066Sahrens nvlist_free(config); 324fa9e4066Sahrens 325fa9e4066Sahrens return (error); 326fa9e4066Sahrens } 327fa9e4066Sahrens 328fa9e4066Sahrens static int 329fa9e4066Sahrens zfs_ioc_pool_destroy(zfs_cmd_t *zc) 330fa9e4066Sahrens { 331fa9e4066Sahrens return (spa_destroy(zc->zc_name)); 332fa9e4066Sahrens } 333fa9e4066Sahrens 334fa9e4066Sahrens static int 335fa9e4066Sahrens zfs_ioc_pool_import(zfs_cmd_t *zc) 336fa9e4066Sahrens { 337fa9e4066Sahrens int error; 338fa9e4066Sahrens nvlist_t *config; 339fa9e4066Sahrens uint64_t guid; 340fa9e4066Sahrens 341e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) != 0) 342fa9e4066Sahrens return (error); 343fa9e4066Sahrens 344fa9e4066Sahrens if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || 345ea8dc4b6Seschrock guid != zc->zc_guid) 346fa9e4066Sahrens error = EINVAL; 347fa9e4066Sahrens else 348fa9e4066Sahrens error = spa_import(zc->zc_name, config, 349e9dbad6fSeschrock zc->zc_value[0] == '\0' ? NULL : zc->zc_value); 350fa9e4066Sahrens 351fa9e4066Sahrens nvlist_free(config); 352fa9e4066Sahrens 353fa9e4066Sahrens return (error); 354fa9e4066Sahrens } 355fa9e4066Sahrens 356fa9e4066Sahrens static int 357fa9e4066Sahrens zfs_ioc_pool_export(zfs_cmd_t *zc) 358fa9e4066Sahrens { 35944cd46caSbillm return (spa_export(zc->zc_name, NULL)); 360fa9e4066Sahrens } 361fa9e4066Sahrens 362fa9e4066Sahrens static int 363fa9e4066Sahrens zfs_ioc_pool_configs(zfs_cmd_t *zc) 364fa9e4066Sahrens { 365fa9e4066Sahrens nvlist_t *configs; 366fa9e4066Sahrens int error; 367fa9e4066Sahrens 368fa9e4066Sahrens if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) 369fa9e4066Sahrens return (EEXIST); 370fa9e4066Sahrens 371e9dbad6fSeschrock error = put_nvlist(zc, configs); 372fa9e4066Sahrens 373fa9e4066Sahrens nvlist_free(configs); 374fa9e4066Sahrens 375fa9e4066Sahrens return (error); 376fa9e4066Sahrens } 377fa9e4066Sahrens 378fa9e4066Sahrens static int 379fa9e4066Sahrens zfs_ioc_pool_stats(zfs_cmd_t *zc) 380fa9e4066Sahrens { 381fa9e4066Sahrens nvlist_t *config; 382fa9e4066Sahrens int error; 383ea8dc4b6Seschrock int ret = 0; 384fa9e4066Sahrens 385e9dbad6fSeschrock error = spa_get_stats(zc->zc_name, &config, zc->zc_value, 386e9dbad6fSeschrock sizeof (zc->zc_value)); 387fa9e4066Sahrens 388fa9e4066Sahrens if (config != NULL) { 389e9dbad6fSeschrock ret = put_nvlist(zc, config); 390fa9e4066Sahrens nvlist_free(config); 391ea8dc4b6Seschrock 392ea8dc4b6Seschrock /* 393ea8dc4b6Seschrock * The config may be present even if 'error' is non-zero. 394ea8dc4b6Seschrock * In this case we return success, and preserve the real errno 395ea8dc4b6Seschrock * in 'zc_cookie'. 396ea8dc4b6Seschrock */ 397ea8dc4b6Seschrock zc->zc_cookie = error; 398fa9e4066Sahrens } else { 399ea8dc4b6Seschrock ret = error; 400fa9e4066Sahrens } 401fa9e4066Sahrens 402ea8dc4b6Seschrock return (ret); 403fa9e4066Sahrens } 404fa9e4066Sahrens 405fa9e4066Sahrens /* 406fa9e4066Sahrens * Try to import the given pool, returning pool stats as appropriate so that 407fa9e4066Sahrens * user land knows which devices are available and overall pool health. 408fa9e4066Sahrens */ 409fa9e4066Sahrens static int 410fa9e4066Sahrens zfs_ioc_pool_tryimport(zfs_cmd_t *zc) 411fa9e4066Sahrens { 412fa9e4066Sahrens nvlist_t *tryconfig, *config; 413fa9e4066Sahrens int error; 414fa9e4066Sahrens 415e9dbad6fSeschrock if ((error = get_nvlist(zc, &tryconfig)) != 0) 416fa9e4066Sahrens return (error); 417fa9e4066Sahrens 418fa9e4066Sahrens config = spa_tryimport(tryconfig); 419fa9e4066Sahrens 420fa9e4066Sahrens nvlist_free(tryconfig); 421fa9e4066Sahrens 422fa9e4066Sahrens if (config == NULL) 423fa9e4066Sahrens return (EINVAL); 424fa9e4066Sahrens 425e9dbad6fSeschrock error = put_nvlist(zc, config); 426fa9e4066Sahrens nvlist_free(config); 427fa9e4066Sahrens 428fa9e4066Sahrens return (error); 429fa9e4066Sahrens } 430fa9e4066Sahrens 431fa9e4066Sahrens static int 432fa9e4066Sahrens zfs_ioc_pool_scrub(zfs_cmd_t *zc) 433fa9e4066Sahrens { 434fa9e4066Sahrens spa_t *spa; 435fa9e4066Sahrens int error; 436fa9e4066Sahrens 437fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 438fa9e4066Sahrens if (error == 0) { 439fa9e4066Sahrens error = spa_scrub(spa, zc->zc_cookie, B_FALSE); 440fa9e4066Sahrens spa_close(spa, FTAG); 441fa9e4066Sahrens } 442fa9e4066Sahrens return (error); 443fa9e4066Sahrens } 444fa9e4066Sahrens 445fa9e4066Sahrens static int 446fa9e4066Sahrens zfs_ioc_pool_freeze(zfs_cmd_t *zc) 447fa9e4066Sahrens { 448fa9e4066Sahrens spa_t *spa; 449fa9e4066Sahrens int error; 450fa9e4066Sahrens 451fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 452fa9e4066Sahrens if (error == 0) { 453fa9e4066Sahrens spa_freeze(spa); 454fa9e4066Sahrens spa_close(spa, FTAG); 455fa9e4066Sahrens } 456fa9e4066Sahrens return (error); 457fa9e4066Sahrens } 458fa9e4066Sahrens 459eaca9bbdSeschrock static int 460eaca9bbdSeschrock zfs_ioc_pool_upgrade(zfs_cmd_t *zc) 461eaca9bbdSeschrock { 462eaca9bbdSeschrock spa_t *spa; 463eaca9bbdSeschrock int error; 464eaca9bbdSeschrock 465eaca9bbdSeschrock error = spa_open(zc->zc_name, &spa, FTAG); 466eaca9bbdSeschrock if (error == 0) { 467eaca9bbdSeschrock spa_upgrade(spa); 468eaca9bbdSeschrock spa_close(spa, FTAG); 469eaca9bbdSeschrock } 470eaca9bbdSeschrock return (error); 471eaca9bbdSeschrock } 472eaca9bbdSeschrock 473fa9e4066Sahrens static int 474fa9e4066Sahrens zfs_ioc_vdev_add(zfs_cmd_t *zc) 475fa9e4066Sahrens { 476fa9e4066Sahrens spa_t *spa; 477fa9e4066Sahrens int error; 478fa9e4066Sahrens nvlist_t *config; 479fa9e4066Sahrens 480fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 481fa9e4066Sahrens if (error != 0) 482fa9e4066Sahrens return (error); 483fa9e4066Sahrens 484e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) == 0) { 485fa9e4066Sahrens error = spa_vdev_add(spa, config); 486fa9e4066Sahrens nvlist_free(config); 487fa9e4066Sahrens } 488fa9e4066Sahrens 489fa9e4066Sahrens spa_close(spa, FTAG); 490fa9e4066Sahrens return (error); 491fa9e4066Sahrens } 492fa9e4066Sahrens 493fa9e4066Sahrens static int 494fa9e4066Sahrens zfs_ioc_vdev_remove(zfs_cmd_t *zc) 495fa9e4066Sahrens { 49699653d4eSeschrock spa_t *spa; 49799653d4eSeschrock int error; 49899653d4eSeschrock 49999653d4eSeschrock error = spa_open(zc->zc_name, &spa, FTAG); 50099653d4eSeschrock if (error != 0) 50199653d4eSeschrock return (error); 50299653d4eSeschrock error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); 50399653d4eSeschrock spa_close(spa, FTAG); 50499653d4eSeschrock return (error); 505fa9e4066Sahrens } 506fa9e4066Sahrens 507fa9e4066Sahrens static int 508fa9e4066Sahrens zfs_ioc_vdev_online(zfs_cmd_t *zc) 509fa9e4066Sahrens { 510fa9e4066Sahrens spa_t *spa; 511fa9e4066Sahrens int error; 512fa9e4066Sahrens 513fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 514fa9e4066Sahrens if (error != 0) 515fa9e4066Sahrens return (error); 516ea8dc4b6Seschrock error = vdev_online(spa, zc->zc_guid); 517fa9e4066Sahrens spa_close(spa, FTAG); 518fa9e4066Sahrens return (error); 519fa9e4066Sahrens } 520fa9e4066Sahrens 521fa9e4066Sahrens static int 522fa9e4066Sahrens zfs_ioc_vdev_offline(zfs_cmd_t *zc) 523fa9e4066Sahrens { 524fa9e4066Sahrens spa_t *spa; 525441d80aaSlling int istmp = zc->zc_cookie; 526fa9e4066Sahrens int error; 527fa9e4066Sahrens 528fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 529fa9e4066Sahrens if (error != 0) 530fa9e4066Sahrens return (error); 531ea8dc4b6Seschrock error = vdev_offline(spa, zc->zc_guid, istmp); 532fa9e4066Sahrens spa_close(spa, FTAG); 533fa9e4066Sahrens return (error); 534fa9e4066Sahrens } 535fa9e4066Sahrens 536fa9e4066Sahrens static int 537fa9e4066Sahrens zfs_ioc_vdev_attach(zfs_cmd_t *zc) 538fa9e4066Sahrens { 539fa9e4066Sahrens spa_t *spa; 540fa9e4066Sahrens int replacing = zc->zc_cookie; 541fa9e4066Sahrens nvlist_t *config; 542fa9e4066Sahrens int error; 543fa9e4066Sahrens 544fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 545fa9e4066Sahrens if (error != 0) 546fa9e4066Sahrens return (error); 547fa9e4066Sahrens 548e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) == 0) { 549ea8dc4b6Seschrock error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); 550fa9e4066Sahrens nvlist_free(config); 551fa9e4066Sahrens } 552fa9e4066Sahrens 553fa9e4066Sahrens spa_close(spa, FTAG); 554fa9e4066Sahrens return (error); 555fa9e4066Sahrens } 556fa9e4066Sahrens 557fa9e4066Sahrens static int 558fa9e4066Sahrens zfs_ioc_vdev_detach(zfs_cmd_t *zc) 559fa9e4066Sahrens { 560fa9e4066Sahrens spa_t *spa; 561fa9e4066Sahrens int error; 562fa9e4066Sahrens 563fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 564fa9e4066Sahrens if (error != 0) 565fa9e4066Sahrens return (error); 566fa9e4066Sahrens 567ea8dc4b6Seschrock error = spa_vdev_detach(spa, zc->zc_guid, B_FALSE); 568fa9e4066Sahrens 569fa9e4066Sahrens spa_close(spa, FTAG); 570fa9e4066Sahrens return (error); 571fa9e4066Sahrens } 572fa9e4066Sahrens 573c67d9675Seschrock static int 574c67d9675Seschrock zfs_ioc_vdev_setpath(zfs_cmd_t *zc) 575c67d9675Seschrock { 576c67d9675Seschrock spa_t *spa; 577e9dbad6fSeschrock char *path = zc->zc_value; 578ea8dc4b6Seschrock uint64_t guid = zc->zc_guid; 579c67d9675Seschrock int error; 580c67d9675Seschrock 581c67d9675Seschrock error = spa_open(zc->zc_name, &spa, FTAG); 582c67d9675Seschrock if (error != 0) 583c67d9675Seschrock return (error); 584c67d9675Seschrock 585c67d9675Seschrock error = spa_vdev_setpath(spa, guid, path); 586c67d9675Seschrock 587c67d9675Seschrock spa_close(spa, FTAG); 588c67d9675Seschrock return (error); 589c67d9675Seschrock } 590c67d9675Seschrock 591fa9e4066Sahrens static int 592fa9e4066Sahrens zfs_ioc_objset_stats(zfs_cmd_t *zc) 593fa9e4066Sahrens { 594fa9e4066Sahrens objset_t *os = NULL; 595fa9e4066Sahrens int error; 5967f7322feSeschrock nvlist_t *nv; 597fa9e4066Sahrens 598fa9e4066Sahrens retry: 599fa9e4066Sahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 600fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 601fa9e4066Sahrens if (error != 0) { 602fa9e4066Sahrens /* 603fa9e4066Sahrens * This is ugly: dmu_objset_open() can return EBUSY if 604fa9e4066Sahrens * the objset is held exclusively. Fortunately this hold is 605fa9e4066Sahrens * only for a short while, so we retry here. 606fa9e4066Sahrens * This avoids user code having to handle EBUSY, 607fa9e4066Sahrens * for example for a "zfs list". 608fa9e4066Sahrens */ 609fa9e4066Sahrens if (error == EBUSY) { 610fa9e4066Sahrens delay(1); 611fa9e4066Sahrens goto retry; 612fa9e4066Sahrens } 613fa9e4066Sahrens return (error); 614fa9e4066Sahrens } 615fa9e4066Sahrens 616*a2eea2e1Sahrens dmu_objset_fast_stat(os, &zc->zc_objset_stats); 617fa9e4066Sahrens 6185ad82045Snd if (zc->zc_nvlist_dst != 0 && 6197f7322feSeschrock (error = dsl_prop_get_all(os, &nv)) == 0) { 620*a2eea2e1Sahrens dmu_objset_stats(os, nv); 621*a2eea2e1Sahrens if (dmu_objset_type(os) == DMU_OST_ZVOL) 622*a2eea2e1Sahrens VERIFY(zvol_get_stats(os, nv) == 0); 623e9dbad6fSeschrock error = put_nvlist(zc, nv); 6247f7322feSeschrock nvlist_free(nv); 6257f7322feSeschrock } 626fa9e4066Sahrens 627e9dbad6fSeschrock spa_altroot(dmu_objset_spa(os), zc->zc_value, sizeof (zc->zc_value)); 628ea8dc4b6Seschrock 629fa9e4066Sahrens dmu_objset_close(os); 630fa9e4066Sahrens return (error); 631fa9e4066Sahrens } 632fa9e4066Sahrens 633fa9e4066Sahrens static int 634fa9e4066Sahrens zfs_ioc_dataset_list_next(zfs_cmd_t *zc) 635fa9e4066Sahrens { 63687e5029aSahrens objset_t *os; 637fa9e4066Sahrens int error; 638fa9e4066Sahrens char *p; 639fa9e4066Sahrens 64087e5029aSahrens retry: 64187e5029aSahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 64287e5029aSahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 64387e5029aSahrens if (error != 0) { 64487e5029aSahrens /* 64587e5029aSahrens * This is ugly: dmu_objset_open() can return EBUSY if 64687e5029aSahrens * the objset is held exclusively. Fortunately this hold is 64787e5029aSahrens * only for a short while, so we retry here. 64887e5029aSahrens * This avoids user code having to handle EBUSY, 64987e5029aSahrens * for example for a "zfs list". 65087e5029aSahrens */ 65187e5029aSahrens if (error == EBUSY) { 65287e5029aSahrens delay(1); 65387e5029aSahrens goto retry; 65487e5029aSahrens } 65587e5029aSahrens if (error == ENOENT) 65687e5029aSahrens error = ESRCH; 65787e5029aSahrens return (error); 658fa9e4066Sahrens } 659fa9e4066Sahrens 660fa9e4066Sahrens p = strrchr(zc->zc_name, '/'); 661fa9e4066Sahrens if (p == NULL || p[1] != '\0') 662fa9e4066Sahrens (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); 663fa9e4066Sahrens p = zc->zc_name + strlen(zc->zc_name); 664fa9e4066Sahrens 665fa9e4066Sahrens do { 66687e5029aSahrens error = dmu_dir_list_next(os, 66787e5029aSahrens sizeof (zc->zc_name) - (p - zc->zc_name), p, 66887e5029aSahrens NULL, &zc->zc_cookie); 669fa9e4066Sahrens if (error == ENOENT) 670fa9e4066Sahrens error = ESRCH; 67187e5029aSahrens } while (error == 0 && !INGLOBALZONE(curproc) && 672fa9e4066Sahrens !zone_dataset_visible(zc->zc_name, NULL)); 673fa9e4066Sahrens 674fa9e4066Sahrens /* 67587e5029aSahrens * If it's a hidden dataset (ie. with a '$' in its name), don't 67687e5029aSahrens * try to get stats for it. Userland will skip over it. 677fa9e4066Sahrens */ 67887e5029aSahrens if (error == 0 && strchr(zc->zc_name, '$') == NULL) 67987e5029aSahrens error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 680fa9e4066Sahrens 68187e5029aSahrens dmu_objset_close(os); 682fa9e4066Sahrens return (error); 683fa9e4066Sahrens } 684fa9e4066Sahrens 685fa9e4066Sahrens static int 686fa9e4066Sahrens zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) 687fa9e4066Sahrens { 68887e5029aSahrens objset_t *os; 689fa9e4066Sahrens int error; 690fa9e4066Sahrens 691fa9e4066Sahrens retry: 69287e5029aSahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 69387e5029aSahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 69487e5029aSahrens if (error != 0) { 695fa9e4066Sahrens /* 69687e5029aSahrens * This is ugly: dmu_objset_open() can return EBUSY if 697fa9e4066Sahrens * the objset is held exclusively. Fortunately this hold is 698fa9e4066Sahrens * only for a short while, so we retry here. 699fa9e4066Sahrens * This avoids user code having to handle EBUSY, 70087e5029aSahrens * for example for a "zfs list". 701fa9e4066Sahrens */ 702fa9e4066Sahrens if (error == EBUSY) { 703fa9e4066Sahrens delay(1); 704fa9e4066Sahrens goto retry; 705fa9e4066Sahrens } 706fa9e4066Sahrens if (error == ENOENT) 70787e5029aSahrens error = ESRCH; 708fa9e4066Sahrens return (error); 709fa9e4066Sahrens } 710fa9e4066Sahrens 711b81d61a6Slling /* 712b81d61a6Slling * A dataset name of maximum length cannot have any snapshots, 713b81d61a6Slling * so exit immediately. 714b81d61a6Slling */ 715b81d61a6Slling if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { 71687e5029aSahrens dmu_objset_close(os); 717b81d61a6Slling return (ESRCH); 718fa9e4066Sahrens } 719fa9e4066Sahrens 72087e5029aSahrens error = dmu_snapshot_list_next(os, 72187e5029aSahrens sizeof (zc->zc_name) - strlen(zc->zc_name), 72287e5029aSahrens zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie); 72387e5029aSahrens if (error == ENOENT) 72487e5029aSahrens error = ESRCH; 725fa9e4066Sahrens 72687e5029aSahrens if (error == 0) 72787e5029aSahrens error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 728fa9e4066Sahrens 72987e5029aSahrens dmu_objset_close(os); 730fa9e4066Sahrens return (error); 731fa9e4066Sahrens } 732fa9e4066Sahrens 733fa9e4066Sahrens static int 734e9dbad6fSeschrock zfs_set_prop_nvlist(const char *name, dev_t dev, cred_t *cr, nvlist_t *nvl) 735fa9e4066Sahrens { 736e9dbad6fSeschrock nvpair_t *elem; 737e9dbad6fSeschrock int error; 738e9dbad6fSeschrock const char *propname; 739e9dbad6fSeschrock zfs_prop_t prop; 740e9dbad6fSeschrock uint64_t intval; 741e9dbad6fSeschrock char *strval; 742e9dbad6fSeschrock 743e9dbad6fSeschrock elem = NULL; 744e9dbad6fSeschrock while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 745e9dbad6fSeschrock propname = nvpair_name(elem); 746e9dbad6fSeschrock 747e9dbad6fSeschrock if ((prop = zfs_name_to_prop(propname)) == 748e9dbad6fSeschrock ZFS_PROP_INVAL) { 749e9dbad6fSeschrock /* 750e9dbad6fSeschrock * If this is a user-defined property, it must be a 751e9dbad6fSeschrock * string, and there is no further validation to do. 752e9dbad6fSeschrock */ 753e9dbad6fSeschrock if (!zfs_prop_user(propname) || 754e9dbad6fSeschrock nvpair_type(elem) != DATA_TYPE_STRING) 755e9dbad6fSeschrock return (EINVAL); 756e9dbad6fSeschrock 757e9dbad6fSeschrock VERIFY(nvpair_value_string(elem, &strval) == 0); 758e9dbad6fSeschrock error = dsl_prop_set(name, propname, 1, 759e9dbad6fSeschrock strlen(strval) + 1, strval); 760e9dbad6fSeschrock if (error == 0) 761e9dbad6fSeschrock continue; 762e9dbad6fSeschrock else 763e9dbad6fSeschrock break; 764e9dbad6fSeschrock } 765fa9e4066Sahrens 766e9dbad6fSeschrock /* 767e9dbad6fSeschrock * Check permissions for special properties. 768e9dbad6fSeschrock */ 769e9dbad6fSeschrock switch (prop) { 770e9dbad6fSeschrock case ZFS_PROP_ZONED: 771e9dbad6fSeschrock /* 772e9dbad6fSeschrock * Disallow setting of 'zoned' from within a local zone. 773e9dbad6fSeschrock */ 774e9dbad6fSeschrock if (!INGLOBALZONE(curproc)) 775e9dbad6fSeschrock return (EPERM); 776e9dbad6fSeschrock break; 777fa9e4066Sahrens 778e9dbad6fSeschrock case ZFS_PROP_QUOTA: 779e9dbad6fSeschrock if (error = zfs_dozonecheck(name, cr)) 780e9dbad6fSeschrock return (error); 781fa9e4066Sahrens 782e9dbad6fSeschrock if (!INGLOBALZONE(curproc)) { 783e9dbad6fSeschrock uint64_t zoned; 784e9dbad6fSeschrock char setpoint[MAXNAMELEN]; 785e9dbad6fSeschrock int dslen; 786e9dbad6fSeschrock /* 787e9dbad6fSeschrock * Unprivileged users are allowed to modify the 788e9dbad6fSeschrock * quota on things *under* (ie. contained by) 789e9dbad6fSeschrock * the thing they own. 790e9dbad6fSeschrock */ 791e9dbad6fSeschrock if (dsl_prop_get_integer(name, "zoned", &zoned, 792e9dbad6fSeschrock setpoint)) 793e9dbad6fSeschrock return (EPERM); 794e9dbad6fSeschrock if (!zoned) /* this shouldn't happen */ 795e9dbad6fSeschrock return (EPERM); 796e9dbad6fSeschrock dslen = strlen(name); 797e9dbad6fSeschrock if (dslen <= strlen(setpoint)) 798e9dbad6fSeschrock return (EPERM); 799e9dbad6fSeschrock } 800e9dbad6fSeschrock } 801e9dbad6fSeschrock 802e9dbad6fSeschrock switch (prop) { 803e9dbad6fSeschrock case ZFS_PROP_QUOTA: 804e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 805e9dbad6fSeschrock (error = dsl_dir_set_quota(name, 806e9dbad6fSeschrock intval)) != 0) 807e9dbad6fSeschrock return (error); 808e9dbad6fSeschrock break; 809e9dbad6fSeschrock 810e9dbad6fSeschrock case ZFS_PROP_RESERVATION: 811e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 812e9dbad6fSeschrock (error = dsl_dir_set_reservation(name, 813e9dbad6fSeschrock intval)) != 0) 814e9dbad6fSeschrock return (error); 815e9dbad6fSeschrock break; 816e9dbad6fSeschrock 817e9dbad6fSeschrock case ZFS_PROP_VOLSIZE: 818e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 819e9dbad6fSeschrock (error = zvol_set_volsize(name, dev, 820e9dbad6fSeschrock intval)) != 0) 821e9dbad6fSeschrock return (error); 822e9dbad6fSeschrock break; 823e9dbad6fSeschrock 824e9dbad6fSeschrock case ZFS_PROP_VOLBLOCKSIZE: 825e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 826e9dbad6fSeschrock (error = zvol_set_volblocksize(name, 827e9dbad6fSeschrock intval)) != 0) 828e9dbad6fSeschrock return (error); 829e9dbad6fSeschrock break; 830e9dbad6fSeschrock 831e9dbad6fSeschrock default: 832e9dbad6fSeschrock if (nvpair_type(elem) == DATA_TYPE_STRING) { 833e9dbad6fSeschrock if (zfs_prop_get_type(prop) != 834e9dbad6fSeschrock prop_type_string) 835e9dbad6fSeschrock return (EINVAL); 836acd76fe5Seschrock VERIFY(nvpair_value_string(elem, &strval) == 0); 837acd76fe5Seschrock if ((error = dsl_prop_set(name, 838e9dbad6fSeschrock nvpair_name(elem), 1, strlen(strval) + 1, 839acd76fe5Seschrock strval)) != 0) 840acd76fe5Seschrock return (error); 841e9dbad6fSeschrock } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { 842*a2eea2e1Sahrens const char *unused; 843*a2eea2e1Sahrens 844acd76fe5Seschrock VERIFY(nvpair_value_uint64(elem, &intval) == 0); 845e9dbad6fSeschrock 846e9dbad6fSeschrock switch (zfs_prop_get_type(prop)) { 847e9dbad6fSeschrock case prop_type_number: 848e9dbad6fSeschrock break; 849e9dbad6fSeschrock case prop_type_boolean: 850e9dbad6fSeschrock if (intval > 1) 851acd76fe5Seschrock return (EINVAL); 852e9dbad6fSeschrock break; 853e9dbad6fSeschrock case prop_type_string: 854acd76fe5Seschrock return (EINVAL); 855e9dbad6fSeschrock case prop_type_index: 856acd76fe5Seschrock if (zfs_prop_index_to_string(prop, 857acd76fe5Seschrock intval, &unused) != 0) 858acd76fe5Seschrock return (EINVAL); 859e9dbad6fSeschrock break; 860e9dbad6fSeschrock default: 861e9dbad6fSeschrock cmn_err(CE_PANIC, "unknown property " 862e9dbad6fSeschrock "type"); 863e9dbad6fSeschrock break; 864e9dbad6fSeschrock } 865e9dbad6fSeschrock 866acd76fe5Seschrock if ((error = dsl_prop_set(name, propname, 867acd76fe5Seschrock 8, 1, &intval)) != 0) 868acd76fe5Seschrock return (error); 869e9dbad6fSeschrock } else { 870e9dbad6fSeschrock return (EINVAL); 871e9dbad6fSeschrock } 872e9dbad6fSeschrock break; 873e9dbad6fSeschrock } 874e9dbad6fSeschrock } 875e9dbad6fSeschrock 876e9dbad6fSeschrock return (0); 877fa9e4066Sahrens } 878fa9e4066Sahrens 879fa9e4066Sahrens static int 880e9dbad6fSeschrock zfs_ioc_set_prop(zfs_cmd_t *zc) 881fa9e4066Sahrens { 882e9dbad6fSeschrock nvlist_t *nvl; 883e9dbad6fSeschrock int error; 884e9dbad6fSeschrock zfs_prop_t prop; 885e9dbad6fSeschrock 886e9dbad6fSeschrock /* 887e9dbad6fSeschrock * If zc_value is set, then this is an attempt to inherit a value. 888e9dbad6fSeschrock * Otherwise, zc_nvlist refers to a list of properties to set. 889e9dbad6fSeschrock */ 890e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 891e9dbad6fSeschrock if (!zfs_prop_user(zc->zc_value) && 892e9dbad6fSeschrock ((prop = zfs_name_to_prop(zc->zc_value)) == 893e9dbad6fSeschrock ZFS_PROP_INVAL || 894e9dbad6fSeschrock !zfs_prop_inheritable(prop))) 895e9dbad6fSeschrock return (EINVAL); 896e9dbad6fSeschrock 897e9dbad6fSeschrock return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL)); 898e9dbad6fSeschrock } 899e9dbad6fSeschrock 900e9dbad6fSeschrock if ((error = get_nvlist(zc, &nvl)) != 0) 901e9dbad6fSeschrock return (error); 902e9dbad6fSeschrock 903e9dbad6fSeschrock error = zfs_set_prop_nvlist(zc->zc_name, zc->zc_dev, 904e9dbad6fSeschrock (cred_t *)(uintptr_t)zc->zc_cred, nvl); 905e9dbad6fSeschrock nvlist_free(nvl); 906e9dbad6fSeschrock return (error); 907fa9e4066Sahrens } 908fa9e4066Sahrens 909fa9e4066Sahrens static int 910fa9e4066Sahrens zfs_ioc_create_minor(zfs_cmd_t *zc) 911fa9e4066Sahrens { 912e9dbad6fSeschrock return (zvol_create_minor(zc->zc_name, zc->zc_dev)); 913fa9e4066Sahrens } 914fa9e4066Sahrens 915fa9e4066Sahrens static int 916fa9e4066Sahrens zfs_ioc_remove_minor(zfs_cmd_t *zc) 917fa9e4066Sahrens { 918e9dbad6fSeschrock return (zvol_remove_minor(zc->zc_name)); 919fa9e4066Sahrens } 920fa9e4066Sahrens 921fa9e4066Sahrens /* 922fa9e4066Sahrens * Search the vfs list for a specified resource. Returns a pointer to it 923fa9e4066Sahrens * or NULL if no suitable entry is found. The caller of this routine 924fa9e4066Sahrens * is responsible for releasing the returned vfs pointer. 925fa9e4066Sahrens */ 926fa9e4066Sahrens static vfs_t * 927fa9e4066Sahrens zfs_get_vfs(const char *resource) 928fa9e4066Sahrens { 929fa9e4066Sahrens struct vfs *vfsp; 930fa9e4066Sahrens struct vfs *vfs_found = NULL; 931fa9e4066Sahrens 932fa9e4066Sahrens vfs_list_read_lock(); 933fa9e4066Sahrens vfsp = rootvfs; 934fa9e4066Sahrens do { 935fa9e4066Sahrens if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { 936fa9e4066Sahrens VFS_HOLD(vfsp); 937fa9e4066Sahrens vfs_found = vfsp; 938fa9e4066Sahrens break; 939fa9e4066Sahrens } 940fa9e4066Sahrens vfsp = vfsp->vfs_next; 941fa9e4066Sahrens } while (vfsp != rootvfs); 942fa9e4066Sahrens vfs_list_unlock(); 943fa9e4066Sahrens return (vfs_found); 944fa9e4066Sahrens } 945fa9e4066Sahrens 946fa9e4066Sahrens static void 947fa9e4066Sahrens zfs_create_cb(objset_t *os, void *arg, dmu_tx_t *tx) 948fa9e4066Sahrens { 949e9dbad6fSeschrock zfs_create_data_t *zc = arg; 950fa9e4066Sahrens zfs_create_fs(os, (cred_t *)(uintptr_t)zc->zc_cred, tx); 951fa9e4066Sahrens } 952fa9e4066Sahrens 953fa9e4066Sahrens static int 954fa9e4066Sahrens zfs_ioc_create(zfs_cmd_t *zc) 955fa9e4066Sahrens { 956fa9e4066Sahrens objset_t *clone; 957fa9e4066Sahrens int error = 0; 958e9dbad6fSeschrock zfs_create_data_t cbdata = { 0 }; 959fa9e4066Sahrens void (*cbfunc)(objset_t *os, void *arg, dmu_tx_t *tx); 960fa9e4066Sahrens dmu_objset_type_t type = zc->zc_objset_type; 961fa9e4066Sahrens 962fa9e4066Sahrens switch (type) { 963fa9e4066Sahrens 964fa9e4066Sahrens case DMU_OST_ZFS: 965fa9e4066Sahrens cbfunc = zfs_create_cb; 966fa9e4066Sahrens break; 967fa9e4066Sahrens 968fa9e4066Sahrens case DMU_OST_ZVOL: 969fa9e4066Sahrens cbfunc = zvol_create_cb; 970fa9e4066Sahrens break; 971fa9e4066Sahrens 972fa9e4066Sahrens default: 9731d452cf5Sahrens cbfunc = NULL; 974fa9e4066Sahrens } 9751d452cf5Sahrens if (strchr(zc->zc_name, '@')) 9761d452cf5Sahrens return (EINVAL); 977fa9e4066Sahrens 978e9dbad6fSeschrock if (zc->zc_nvlist_src != NULL && 979e9dbad6fSeschrock (error = get_nvlist(zc, &cbdata.zc_props)) != 0) 980e9dbad6fSeschrock return (error); 981e9dbad6fSeschrock 982e9dbad6fSeschrock cbdata.zc_cred = (cred_t *)(uintptr_t)zc->zc_cred; 983e9dbad6fSeschrock cbdata.zc_dev = (dev_t)zc->zc_dev; 984e9dbad6fSeschrock 985e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 986fa9e4066Sahrens /* 987fa9e4066Sahrens * We're creating a clone of an existing snapshot. 988fa9e4066Sahrens */ 989e9dbad6fSeschrock zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 990e9dbad6fSeschrock if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { 991e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 992fa9e4066Sahrens return (EINVAL); 993e9dbad6fSeschrock } 994fa9e4066Sahrens 995e9dbad6fSeschrock error = dmu_objset_open(zc->zc_value, type, 996fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &clone); 997e9dbad6fSeschrock if (error) { 998e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 999fa9e4066Sahrens return (error); 1000e9dbad6fSeschrock } 1001fa9e4066Sahrens error = dmu_objset_create(zc->zc_name, type, clone, NULL, NULL); 1002fa9e4066Sahrens dmu_objset_close(clone); 1003fa9e4066Sahrens } else { 1004e9dbad6fSeschrock if (cbfunc == NULL) { 1005e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 10061d452cf5Sahrens return (EINVAL); 1007e9dbad6fSeschrock } 10085c5460e9Seschrock 1009e9dbad6fSeschrock if (type == DMU_OST_ZVOL) { 1010e9dbad6fSeschrock uint64_t volsize, volblocksize; 1011e9dbad6fSeschrock 1012e9dbad6fSeschrock if (cbdata.zc_props == NULL || 1013e9dbad6fSeschrock nvlist_lookup_uint64(cbdata.zc_props, 1014e9dbad6fSeschrock zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1015e9dbad6fSeschrock &volsize) != 0) { 1016e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1017e9dbad6fSeschrock return (EINVAL); 1018e9dbad6fSeschrock } 1019e9dbad6fSeschrock 1020e9dbad6fSeschrock if ((error = nvlist_lookup_uint64(cbdata.zc_props, 1021e9dbad6fSeschrock zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1022e9dbad6fSeschrock &volblocksize)) != 0 && error != ENOENT) { 1023e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1024e9dbad6fSeschrock return (EINVAL); 1025e9dbad6fSeschrock } 1026e9dbad6fSeschrock 1027e9dbad6fSeschrock if (error != 0) 1028e9dbad6fSeschrock volblocksize = zfs_prop_default_numeric( 1029e9dbad6fSeschrock ZFS_PROP_VOLBLOCKSIZE); 1030e9dbad6fSeschrock 1031e9dbad6fSeschrock if ((error = zvol_check_volblocksize( 1032e9dbad6fSeschrock volblocksize)) != 0 || 1033e9dbad6fSeschrock (error = zvol_check_volsize(volsize, 1034e9dbad6fSeschrock volblocksize)) != 0) { 1035e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 10365c5460e9Seschrock return (error); 1037e9dbad6fSeschrock } 1038fa9e4066Sahrens } 1039e9dbad6fSeschrock 1040e9dbad6fSeschrock error = dmu_objset_create(zc->zc_name, type, NULL, cbfunc, 1041e9dbad6fSeschrock &cbdata); 1042fa9e4066Sahrens } 1043e9dbad6fSeschrock 1044e9dbad6fSeschrock /* 1045e9dbad6fSeschrock * It would be nice to do this atomically. 1046e9dbad6fSeschrock */ 1047e9dbad6fSeschrock if (error == 0) { 1048e9dbad6fSeschrock if ((error = zfs_set_prop_nvlist(zc->zc_name, 1049e9dbad6fSeschrock zc->zc_dev, (cred_t *)(uintptr_t)zc->zc_cred, 1050e9dbad6fSeschrock cbdata.zc_props)) != 0) 1051e9dbad6fSeschrock (void) dmu_objset_destroy(zc->zc_name); 1052e9dbad6fSeschrock } 1053e9dbad6fSeschrock 1054e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1055fa9e4066Sahrens return (error); 1056fa9e4066Sahrens } 1057fa9e4066Sahrens 1058fa9e4066Sahrens static int 10591d452cf5Sahrens zfs_ioc_snapshot(zfs_cmd_t *zc) 1060fa9e4066Sahrens { 1061e9dbad6fSeschrock if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) 10621d452cf5Sahrens return (EINVAL); 10631d452cf5Sahrens return (dmu_objset_snapshot(zc->zc_name, 1064e9dbad6fSeschrock zc->zc_value, zc->zc_cookie)); 10651d452cf5Sahrens } 1066fa9e4066Sahrens 10671d452cf5Sahrens static int 10681d452cf5Sahrens zfs_unmount_snap(char *name, void *arg) 10691d452cf5Sahrens { 10701d452cf5Sahrens char *snapname = arg; 10711d452cf5Sahrens char *cp; 10720b69c2f0Sahrens vfs_t *vfsp = NULL; 10731d452cf5Sahrens 10741d452cf5Sahrens /* 10751d452cf5Sahrens * Snapshots (which are under .zfs control) must be unmounted 10761d452cf5Sahrens * before they can be destroyed. 10771d452cf5Sahrens */ 10781d452cf5Sahrens 10791d452cf5Sahrens if (snapname) { 10801d452cf5Sahrens (void) strcat(name, "@"); 10811d452cf5Sahrens (void) strcat(name, snapname); 10821d452cf5Sahrens vfsp = zfs_get_vfs(name); 10831d452cf5Sahrens cp = strchr(name, '@'); 10841d452cf5Sahrens *cp = '\0'; 10850b69c2f0Sahrens } else if (strchr(name, '@')) { 10861d452cf5Sahrens vfsp = zfs_get_vfs(name); 10871d452cf5Sahrens } 10881d452cf5Sahrens 10891d452cf5Sahrens if (vfsp) { 1090fa9e4066Sahrens /* 10911d452cf5Sahrens * Always force the unmount for snapshots. 1092fa9e4066Sahrens */ 10931d452cf5Sahrens int flag = MS_FORCE; 10941d452cf5Sahrens int err; 10951d452cf5Sahrens 10961d452cf5Sahrens if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { 1097fa9e4066Sahrens VFS_RELE(vfsp); 10981d452cf5Sahrens return (err); 1099fa9e4066Sahrens } 11001d452cf5Sahrens VFS_RELE(vfsp); 11011d452cf5Sahrens if ((err = dounmount(vfsp, flag, kcred)) != 0) 11021d452cf5Sahrens return (err); 11031d452cf5Sahrens } 11041d452cf5Sahrens return (0); 11051d452cf5Sahrens } 11061d452cf5Sahrens 11071d452cf5Sahrens static int 11081d452cf5Sahrens zfs_ioc_destroy_snaps(zfs_cmd_t *zc) 11091d452cf5Sahrens { 11101d452cf5Sahrens int err; 11111d452cf5Sahrens 1112e9dbad6fSeschrock if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) 11131d452cf5Sahrens return (EINVAL); 11141d452cf5Sahrens err = dmu_objset_find(zc->zc_name, 1115e9dbad6fSeschrock zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN); 11161d452cf5Sahrens if (err) 11171d452cf5Sahrens return (err); 1118e9dbad6fSeschrock return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value)); 11191d452cf5Sahrens } 11201d452cf5Sahrens 11211d452cf5Sahrens static int 11221d452cf5Sahrens zfs_ioc_destroy(zfs_cmd_t *zc) 11231d452cf5Sahrens { 11241d452cf5Sahrens if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { 11251d452cf5Sahrens int err = zfs_unmount_snap(zc->zc_name, NULL); 11261d452cf5Sahrens if (err) 11271d452cf5Sahrens return (err); 1128fa9e4066Sahrens } 1129fa9e4066Sahrens 1130fa9e4066Sahrens return (dmu_objset_destroy(zc->zc_name)); 1131fa9e4066Sahrens } 1132fa9e4066Sahrens 1133fa9e4066Sahrens static int 1134fa9e4066Sahrens zfs_ioc_rollback(zfs_cmd_t *zc) 1135fa9e4066Sahrens { 1136fa9e4066Sahrens return (dmu_objset_rollback(zc->zc_name)); 1137fa9e4066Sahrens } 1138fa9e4066Sahrens 1139fa9e4066Sahrens static int 1140fa9e4066Sahrens zfs_ioc_rename(zfs_cmd_t *zc) 1141fa9e4066Sahrens { 1142e9dbad6fSeschrock zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 1143e9dbad6fSeschrock if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) 1144fa9e4066Sahrens return (EINVAL); 1145fa9e4066Sahrens 1146fa9e4066Sahrens if (strchr(zc->zc_name, '@') != NULL && 1147fa9e4066Sahrens zc->zc_objset_type == DMU_OST_ZFS) { 11481d452cf5Sahrens int err = zfs_unmount_snap(zc->zc_name, NULL); 11491d452cf5Sahrens if (err) 11501d452cf5Sahrens return (err); 1151fa9e4066Sahrens } 1152fa9e4066Sahrens 1153e9dbad6fSeschrock return (dmu_objset_rename(zc->zc_name, zc->zc_value)); 1154fa9e4066Sahrens } 1155fa9e4066Sahrens 1156fa9e4066Sahrens static int 1157fa9e4066Sahrens zfs_ioc_recvbackup(zfs_cmd_t *zc) 1158fa9e4066Sahrens { 1159fa9e4066Sahrens file_t *fp; 1160fa9e4066Sahrens int error, fd; 1161*a2eea2e1Sahrens offset_t new_off; 1162fa9e4066Sahrens 1163fa9e4066Sahrens fd = zc->zc_cookie; 1164fa9e4066Sahrens fp = getf(fd); 1165fa9e4066Sahrens if (fp == NULL) 1166fa9e4066Sahrens return (EBADF); 1167e9dbad6fSeschrock error = dmu_recvbackup(zc->zc_value, &zc->zc_begin_record, 1168e9dbad6fSeschrock &zc->zc_cookie, (boolean_t)zc->zc_guid, fp->f_vnode, 116998579b20Snd fp->f_offset); 1170*a2eea2e1Sahrens 1171*a2eea2e1Sahrens new_off = fp->f_offset + zc->zc_cookie; 1172*a2eea2e1Sahrens if (VOP_SEEK(fp->f_vnode, fp->f_offset, &new_off) == 0) 1173*a2eea2e1Sahrens fp->f_offset = new_off; 1174*a2eea2e1Sahrens 1175fa9e4066Sahrens releasef(fd); 1176fa9e4066Sahrens return (error); 1177fa9e4066Sahrens } 1178fa9e4066Sahrens 1179fa9e4066Sahrens static int 1180fa9e4066Sahrens zfs_ioc_sendbackup(zfs_cmd_t *zc) 1181fa9e4066Sahrens { 1182fa9e4066Sahrens objset_t *fromsnap = NULL; 1183fa9e4066Sahrens objset_t *tosnap; 1184fa9e4066Sahrens file_t *fp; 1185fa9e4066Sahrens int error; 1186fa9e4066Sahrens 1187fa9e4066Sahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 1188fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &tosnap); 1189fa9e4066Sahrens if (error) 1190fa9e4066Sahrens return (error); 1191fa9e4066Sahrens 1192e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 1193*a2eea2e1Sahrens char buf[MAXPATHLEN]; 1194*a2eea2e1Sahrens char *cp; 1195*a2eea2e1Sahrens 1196*a2eea2e1Sahrens (void) strncpy(buf, zc->zc_name, sizeof (buf)); 1197*a2eea2e1Sahrens cp = strchr(buf, '@'); 1198*a2eea2e1Sahrens if (cp) 1199*a2eea2e1Sahrens *(cp+1) = 0; 1200*a2eea2e1Sahrens (void) strncat(buf, zc->zc_value, sizeof (buf)); 1201*a2eea2e1Sahrens error = dmu_objset_open(buf, DMU_OST_ANY, 1202fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &fromsnap); 1203fa9e4066Sahrens if (error) { 1204fa9e4066Sahrens dmu_objset_close(tosnap); 1205fa9e4066Sahrens return (error); 1206fa9e4066Sahrens } 1207fa9e4066Sahrens } 1208fa9e4066Sahrens 1209fa9e4066Sahrens fp = getf(zc->zc_cookie); 1210fa9e4066Sahrens if (fp == NULL) { 1211fa9e4066Sahrens dmu_objset_close(tosnap); 1212fa9e4066Sahrens if (fromsnap) 1213fa9e4066Sahrens dmu_objset_close(fromsnap); 1214fa9e4066Sahrens return (EBADF); 1215fa9e4066Sahrens } 1216fa9e4066Sahrens 1217fa9e4066Sahrens error = dmu_sendbackup(tosnap, fromsnap, fp->f_vnode); 1218fa9e4066Sahrens 1219fa9e4066Sahrens releasef(zc->zc_cookie); 1220fa9e4066Sahrens if (fromsnap) 1221fa9e4066Sahrens dmu_objset_close(fromsnap); 1222fa9e4066Sahrens dmu_objset_close(tosnap); 1223fa9e4066Sahrens return (error); 1224fa9e4066Sahrens } 1225fa9e4066Sahrens 1226ea8dc4b6Seschrock static int 1227ea8dc4b6Seschrock zfs_ioc_inject_fault(zfs_cmd_t *zc) 1228ea8dc4b6Seschrock { 1229ea8dc4b6Seschrock int id, error; 1230ea8dc4b6Seschrock 1231ea8dc4b6Seschrock error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, 1232ea8dc4b6Seschrock &zc->zc_inject_record); 1233ea8dc4b6Seschrock 1234ea8dc4b6Seschrock if (error == 0) 1235ea8dc4b6Seschrock zc->zc_guid = (uint64_t)id; 1236ea8dc4b6Seschrock 1237ea8dc4b6Seschrock return (error); 1238ea8dc4b6Seschrock } 1239ea8dc4b6Seschrock 1240ea8dc4b6Seschrock static int 1241ea8dc4b6Seschrock zfs_ioc_clear_fault(zfs_cmd_t *zc) 1242ea8dc4b6Seschrock { 1243ea8dc4b6Seschrock return (zio_clear_fault((int)zc->zc_guid)); 1244ea8dc4b6Seschrock } 1245ea8dc4b6Seschrock 1246ea8dc4b6Seschrock static int 1247ea8dc4b6Seschrock zfs_ioc_inject_list_next(zfs_cmd_t *zc) 1248ea8dc4b6Seschrock { 1249ea8dc4b6Seschrock int id = (int)zc->zc_guid; 1250ea8dc4b6Seschrock int error; 1251ea8dc4b6Seschrock 1252ea8dc4b6Seschrock error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), 1253ea8dc4b6Seschrock &zc->zc_inject_record); 1254ea8dc4b6Seschrock 1255ea8dc4b6Seschrock zc->zc_guid = id; 1256ea8dc4b6Seschrock 1257ea8dc4b6Seschrock return (error); 1258ea8dc4b6Seschrock } 1259ea8dc4b6Seschrock 1260ea8dc4b6Seschrock static int 1261ea8dc4b6Seschrock zfs_ioc_error_log(zfs_cmd_t *zc) 1262ea8dc4b6Seschrock { 1263ea8dc4b6Seschrock spa_t *spa; 1264ea8dc4b6Seschrock int error; 1265e9dbad6fSeschrock size_t count = (size_t)zc->zc_nvlist_dst_size; 1266ea8dc4b6Seschrock 1267ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1268ea8dc4b6Seschrock return (error); 1269ea8dc4b6Seschrock 1270e9dbad6fSeschrock error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, 1271ea8dc4b6Seschrock &count); 1272ea8dc4b6Seschrock if (error == 0) 1273e9dbad6fSeschrock zc->zc_nvlist_dst_size = count; 1274ea8dc4b6Seschrock else 1275e9dbad6fSeschrock zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); 1276ea8dc4b6Seschrock 1277ea8dc4b6Seschrock spa_close(spa, FTAG); 1278ea8dc4b6Seschrock 1279ea8dc4b6Seschrock return (error); 1280ea8dc4b6Seschrock } 1281ea8dc4b6Seschrock 1282ea8dc4b6Seschrock static int 1283ea8dc4b6Seschrock zfs_ioc_clear(zfs_cmd_t *zc) 1284ea8dc4b6Seschrock { 1285ea8dc4b6Seschrock spa_t *spa; 1286ea8dc4b6Seschrock vdev_t *vd; 1287ea8dc4b6Seschrock int error; 1288ea8dc4b6Seschrock 1289ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1290ea8dc4b6Seschrock return (error); 1291ea8dc4b6Seschrock 1292ea8dc4b6Seschrock spa_config_enter(spa, RW_WRITER, FTAG); 1293ea8dc4b6Seschrock 1294e9dbad6fSeschrock if (zc->zc_guid == 0) { 1295ea8dc4b6Seschrock vd = NULL; 1296e9dbad6fSeschrock } else if ((vd = spa_lookup_by_guid(spa, zc->zc_guid)) == NULL) { 1297ea8dc4b6Seschrock spa_config_exit(spa, FTAG); 1298ea8dc4b6Seschrock spa_close(spa, FTAG); 1299ea8dc4b6Seschrock return (ENODEV); 1300ea8dc4b6Seschrock } 1301ea8dc4b6Seschrock 1302ea8dc4b6Seschrock vdev_clear(spa, vd); 1303ea8dc4b6Seschrock 1304ea8dc4b6Seschrock spa_config_exit(spa, FTAG); 1305ea8dc4b6Seschrock 1306ea8dc4b6Seschrock spa_close(spa, FTAG); 1307ea8dc4b6Seschrock 1308ea8dc4b6Seschrock return (0); 1309ea8dc4b6Seschrock } 1310ea8dc4b6Seschrock 1311ea8dc4b6Seschrock static int 1312ea8dc4b6Seschrock zfs_ioc_bookmark_name(zfs_cmd_t *zc) 1313ea8dc4b6Seschrock { 1314ea8dc4b6Seschrock spa_t *spa; 1315ea8dc4b6Seschrock int error; 1316e9dbad6fSeschrock nvlist_t *nvl; 1317ea8dc4b6Seschrock 1318ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1319ea8dc4b6Seschrock return (error); 1320ea8dc4b6Seschrock 1321e9dbad6fSeschrock VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1322e9dbad6fSeschrock 1323e9dbad6fSeschrock error = spa_bookmark_name(spa, &zc->zc_bookmark, nvl); 1324e9dbad6fSeschrock if (error == 0) 1325e9dbad6fSeschrock error = put_nvlist(zc, nvl); 1326e9dbad6fSeschrock nvlist_free(nvl); 1327ea8dc4b6Seschrock 1328ea8dc4b6Seschrock spa_close(spa, FTAG); 1329ea8dc4b6Seschrock 1330ea8dc4b6Seschrock return (error); 1331ea8dc4b6Seschrock } 1332ea8dc4b6Seschrock 133399653d4eSeschrock static int 133499653d4eSeschrock zfs_ioc_promote(zfs_cmd_t *zc) 133599653d4eSeschrock { 13360b69c2f0Sahrens char *cp; 13370b69c2f0Sahrens 13380b69c2f0Sahrens /* 13390b69c2f0Sahrens * We don't need to unmount *all* the origin fs's snapshots, but 13400b69c2f0Sahrens * it's easier. 13410b69c2f0Sahrens */ 1342e9dbad6fSeschrock cp = strchr(zc->zc_value, '@'); 13430b69c2f0Sahrens if (cp) 13440b69c2f0Sahrens *cp = '\0'; 1345e9dbad6fSeschrock (void) dmu_objset_find(zc->zc_value, 13460b69c2f0Sahrens zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); 134799653d4eSeschrock return (dsl_dataset_promote(zc->zc_name)); 134899653d4eSeschrock } 134999653d4eSeschrock 1350fa9e4066Sahrens static zfs_ioc_vec_t zfs_ioc_vec[] = { 1351fa9e4066Sahrens { zfs_ioc_pool_create, zfs_secpolicy_config, pool_name }, 1352fa9e4066Sahrens { zfs_ioc_pool_destroy, zfs_secpolicy_config, pool_name }, 1353fa9e4066Sahrens { zfs_ioc_pool_import, zfs_secpolicy_config, pool_name }, 1354fa9e4066Sahrens { zfs_ioc_pool_export, zfs_secpolicy_config, pool_name }, 1355fa9e4066Sahrens { zfs_ioc_pool_configs, zfs_secpolicy_none, no_name }, 1356fa9e4066Sahrens { zfs_ioc_pool_stats, zfs_secpolicy_read, pool_name }, 1357fa9e4066Sahrens { zfs_ioc_pool_tryimport, zfs_secpolicy_config, no_name }, 1358fa9e4066Sahrens { zfs_ioc_pool_scrub, zfs_secpolicy_config, pool_name }, 1359fa9e4066Sahrens { zfs_ioc_pool_freeze, zfs_secpolicy_config, no_name }, 1360eaca9bbdSeschrock { zfs_ioc_pool_upgrade, zfs_secpolicy_config, pool_name }, 1361fa9e4066Sahrens { zfs_ioc_vdev_add, zfs_secpolicy_config, pool_name }, 1362fa9e4066Sahrens { zfs_ioc_vdev_remove, zfs_secpolicy_config, pool_name }, 1363fa9e4066Sahrens { zfs_ioc_vdev_online, zfs_secpolicy_config, pool_name }, 1364fa9e4066Sahrens { zfs_ioc_vdev_offline, zfs_secpolicy_config, pool_name }, 1365fa9e4066Sahrens { zfs_ioc_vdev_attach, zfs_secpolicy_config, pool_name }, 1366fa9e4066Sahrens { zfs_ioc_vdev_detach, zfs_secpolicy_config, pool_name }, 1367c67d9675Seschrock { zfs_ioc_vdev_setpath, zfs_secpolicy_config, pool_name }, 1368fa9e4066Sahrens { zfs_ioc_objset_stats, zfs_secpolicy_read, dataset_name }, 1369fa9e4066Sahrens { zfs_ioc_dataset_list_next, zfs_secpolicy_read, dataset_name }, 1370fa9e4066Sahrens { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, dataset_name }, 1371e9dbad6fSeschrock { zfs_ioc_set_prop, zfs_secpolicy_write, dataset_name }, 1372fa9e4066Sahrens { zfs_ioc_create_minor, zfs_secpolicy_config, dataset_name }, 1373fa9e4066Sahrens { zfs_ioc_remove_minor, zfs_secpolicy_config, dataset_name }, 1374fa9e4066Sahrens { zfs_ioc_create, zfs_secpolicy_parent, dataset_name }, 1375fa9e4066Sahrens { zfs_ioc_destroy, zfs_secpolicy_parent, dataset_name }, 1376fa9e4066Sahrens { zfs_ioc_rollback, zfs_secpolicy_write, dataset_name }, 1377fa9e4066Sahrens { zfs_ioc_rename, zfs_secpolicy_write, dataset_name }, 1378fa9e4066Sahrens { zfs_ioc_recvbackup, zfs_secpolicy_write, dataset_name }, 1379fa9e4066Sahrens { zfs_ioc_sendbackup, zfs_secpolicy_write, dataset_name }, 1380ea8dc4b6Seschrock { zfs_ioc_inject_fault, zfs_secpolicy_inject, no_name }, 1381ea8dc4b6Seschrock { zfs_ioc_clear_fault, zfs_secpolicy_inject, no_name }, 1382ea8dc4b6Seschrock { zfs_ioc_inject_list_next, zfs_secpolicy_inject, no_name }, 1383ea8dc4b6Seschrock { zfs_ioc_error_log, zfs_secpolicy_inject, pool_name }, 1384ea8dc4b6Seschrock { zfs_ioc_clear, zfs_secpolicy_config, pool_name }, 138599653d4eSeschrock { zfs_ioc_bookmark_name, zfs_secpolicy_inject, pool_name }, 13861d452cf5Sahrens { zfs_ioc_promote, zfs_secpolicy_write, dataset_name }, 13871d452cf5Sahrens { zfs_ioc_destroy_snaps, zfs_secpolicy_write, dataset_name }, 13881d452cf5Sahrens { zfs_ioc_snapshot, zfs_secpolicy_write, dataset_name } 1389fa9e4066Sahrens }; 1390fa9e4066Sahrens 1391fa9e4066Sahrens static int 1392fa9e4066Sahrens zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) 1393fa9e4066Sahrens { 1394fa9e4066Sahrens zfs_cmd_t *zc; 1395fa9e4066Sahrens uint_t vec; 13961d452cf5Sahrens int error, rc; 1397fa9e4066Sahrens 1398fa9e4066Sahrens if (getminor(dev) != 0) 1399fa9e4066Sahrens return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp)); 1400fa9e4066Sahrens 1401fa9e4066Sahrens vec = cmd - ZFS_IOC; 1402fa9e4066Sahrens 1403fa9e4066Sahrens if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) 1404fa9e4066Sahrens return (EINVAL); 1405fa9e4066Sahrens 1406fa9e4066Sahrens zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); 1407fa9e4066Sahrens 1408fa9e4066Sahrens error = xcopyin((void *)arg, zc, sizeof (zfs_cmd_t)); 1409fa9e4066Sahrens 1410fa9e4066Sahrens if (error == 0) { 1411fa9e4066Sahrens zc->zc_cred = (uintptr_t)cr; 1412fa9e4066Sahrens zc->zc_dev = dev; 1413e9dbad6fSeschrock error = zfs_ioc_vec[vec].zvec_secpolicy(zc->zc_name, cr); 1414fa9e4066Sahrens } 1415fa9e4066Sahrens 1416fa9e4066Sahrens /* 1417fa9e4066Sahrens * Ensure that all pool/dataset names are valid before we pass down to 1418fa9e4066Sahrens * the lower layers. 1419fa9e4066Sahrens */ 1420fa9e4066Sahrens if (error == 0) { 1421fa9e4066Sahrens zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 1422fa9e4066Sahrens switch (zfs_ioc_vec[vec].zvec_namecheck) { 1423fa9e4066Sahrens case pool_name: 1424fa9e4066Sahrens if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) 1425fa9e4066Sahrens error = EINVAL; 1426fa9e4066Sahrens break; 1427fa9e4066Sahrens 1428fa9e4066Sahrens case dataset_name: 1429fa9e4066Sahrens if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) 1430fa9e4066Sahrens error = EINVAL; 1431fa9e4066Sahrens break; 14325ad82045Snd 14335ad82045Snd case no_name: 14345ad82045Snd break; 1435fa9e4066Sahrens } 1436fa9e4066Sahrens } 1437fa9e4066Sahrens 1438fa9e4066Sahrens if (error == 0) 1439fa9e4066Sahrens error = zfs_ioc_vec[vec].zvec_func(zc); 1440fa9e4066Sahrens 14411d452cf5Sahrens rc = xcopyout(zc, (void *)arg, sizeof (zfs_cmd_t)); 14421d452cf5Sahrens if (error == 0) 14431d452cf5Sahrens error = rc; 1444fa9e4066Sahrens 1445fa9e4066Sahrens kmem_free(zc, sizeof (zfs_cmd_t)); 1446fa9e4066Sahrens return (error); 1447fa9e4066Sahrens } 1448fa9e4066Sahrens 1449fa9e4066Sahrens static int 1450fa9e4066Sahrens zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 1451fa9e4066Sahrens { 1452fa9e4066Sahrens if (cmd != DDI_ATTACH) 1453fa9e4066Sahrens return (DDI_FAILURE); 1454fa9e4066Sahrens 1455fa9e4066Sahrens if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, 1456fa9e4066Sahrens DDI_PSEUDO, 0) == DDI_FAILURE) 1457fa9e4066Sahrens return (DDI_FAILURE); 1458fa9e4066Sahrens 1459fa9e4066Sahrens zfs_dip = dip; 1460fa9e4066Sahrens 1461fa9e4066Sahrens ddi_report_dev(dip); 1462fa9e4066Sahrens 1463fa9e4066Sahrens return (DDI_SUCCESS); 1464fa9e4066Sahrens } 1465fa9e4066Sahrens 1466fa9e4066Sahrens static int 1467fa9e4066Sahrens zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 1468fa9e4066Sahrens { 1469fa9e4066Sahrens if (spa_busy() || zfs_busy() || zvol_busy()) 1470fa9e4066Sahrens return (DDI_FAILURE); 1471fa9e4066Sahrens 1472fa9e4066Sahrens if (cmd != DDI_DETACH) 1473fa9e4066Sahrens return (DDI_FAILURE); 1474fa9e4066Sahrens 1475fa9e4066Sahrens zfs_dip = NULL; 1476fa9e4066Sahrens 1477fa9e4066Sahrens ddi_prop_remove_all(dip); 1478fa9e4066Sahrens ddi_remove_minor_node(dip, NULL); 1479fa9e4066Sahrens 1480fa9e4066Sahrens return (DDI_SUCCESS); 1481fa9e4066Sahrens } 1482fa9e4066Sahrens 1483fa9e4066Sahrens /*ARGSUSED*/ 1484fa9e4066Sahrens static int 1485fa9e4066Sahrens zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 1486fa9e4066Sahrens { 1487fa9e4066Sahrens switch (infocmd) { 1488fa9e4066Sahrens case DDI_INFO_DEVT2DEVINFO: 1489fa9e4066Sahrens *result = zfs_dip; 1490fa9e4066Sahrens return (DDI_SUCCESS); 1491fa9e4066Sahrens 1492fa9e4066Sahrens case DDI_INFO_DEVT2INSTANCE: 1493a0965f35Sbonwick *result = (void *)0; 1494fa9e4066Sahrens return (DDI_SUCCESS); 1495fa9e4066Sahrens } 1496fa9e4066Sahrens 1497fa9e4066Sahrens return (DDI_FAILURE); 1498fa9e4066Sahrens } 1499fa9e4066Sahrens 1500fa9e4066Sahrens /* 1501fa9e4066Sahrens * OK, so this is a little weird. 1502fa9e4066Sahrens * 1503fa9e4066Sahrens * /dev/zfs is the control node, i.e. minor 0. 1504fa9e4066Sahrens * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. 1505fa9e4066Sahrens * 1506fa9e4066Sahrens * /dev/zfs has basically nothing to do except serve up ioctls, 1507fa9e4066Sahrens * so most of the standard driver entry points are in zvol.c. 1508fa9e4066Sahrens */ 1509fa9e4066Sahrens static struct cb_ops zfs_cb_ops = { 1510fa9e4066Sahrens zvol_open, /* open */ 1511fa9e4066Sahrens zvol_close, /* close */ 1512fa9e4066Sahrens zvol_strategy, /* strategy */ 1513fa9e4066Sahrens nodev, /* print */ 1514fa9e4066Sahrens nodev, /* dump */ 1515fa9e4066Sahrens zvol_read, /* read */ 1516fa9e4066Sahrens zvol_write, /* write */ 1517fa9e4066Sahrens zfsdev_ioctl, /* ioctl */ 1518fa9e4066Sahrens nodev, /* devmap */ 1519fa9e4066Sahrens nodev, /* mmap */ 1520fa9e4066Sahrens nodev, /* segmap */ 1521fa9e4066Sahrens nochpoll, /* poll */ 1522fa9e4066Sahrens ddi_prop_op, /* prop_op */ 1523fa9e4066Sahrens NULL, /* streamtab */ 1524fa9e4066Sahrens D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ 1525fa9e4066Sahrens CB_REV, /* version */ 1526fa9e4066Sahrens zvol_aread, /* async read */ 1527fa9e4066Sahrens zvol_awrite, /* async write */ 1528fa9e4066Sahrens }; 1529fa9e4066Sahrens 1530fa9e4066Sahrens static struct dev_ops zfs_dev_ops = { 1531fa9e4066Sahrens DEVO_REV, /* version */ 1532fa9e4066Sahrens 0, /* refcnt */ 1533fa9e4066Sahrens zfs_info, /* info */ 1534fa9e4066Sahrens nulldev, /* identify */ 1535fa9e4066Sahrens nulldev, /* probe */ 1536fa9e4066Sahrens zfs_attach, /* attach */ 1537fa9e4066Sahrens zfs_detach, /* detach */ 1538fa9e4066Sahrens nodev, /* reset */ 1539fa9e4066Sahrens &zfs_cb_ops, /* driver operations */ 1540fa9e4066Sahrens NULL /* no bus operations */ 1541fa9e4066Sahrens }; 1542fa9e4066Sahrens 1543fa9e4066Sahrens static struct modldrv zfs_modldrv = { 1544e9dbad6fSeschrock &mod_driverops, "ZFS storage pool version " ZFS_VERSION_STRING, 1545e9dbad6fSeschrock &zfs_dev_ops 1546fa9e4066Sahrens }; 1547fa9e4066Sahrens 1548fa9e4066Sahrens static struct modlinkage modlinkage = { 1549fa9e4066Sahrens MODREV_1, 1550fa9e4066Sahrens (void *)&zfs_modlfs, 1551fa9e4066Sahrens (void *)&zfs_modldrv, 1552fa9e4066Sahrens NULL 1553fa9e4066Sahrens }; 1554fa9e4066Sahrens 1555fa9e4066Sahrens int 1556fa9e4066Sahrens _init(void) 1557fa9e4066Sahrens { 1558fa9e4066Sahrens int error; 1559fa9e4066Sahrens 1560a0965f35Sbonwick spa_init(FREAD | FWRITE); 1561a0965f35Sbonwick zfs_init(); 1562a0965f35Sbonwick zvol_init(); 1563a0965f35Sbonwick 1564a0965f35Sbonwick if ((error = mod_install(&modlinkage)) != 0) { 1565a0965f35Sbonwick zvol_fini(); 1566a0965f35Sbonwick zfs_fini(); 1567a0965f35Sbonwick spa_fini(); 1568fa9e4066Sahrens return (error); 1569a0965f35Sbonwick } 1570fa9e4066Sahrens 1571fa9e4066Sahrens error = ldi_ident_from_mod(&modlinkage, &zfs_li); 1572fa9e4066Sahrens ASSERT(error == 0); 1573fa9e4066Sahrens 1574fa9e4066Sahrens return (0); 1575fa9e4066Sahrens } 1576fa9e4066Sahrens 1577fa9e4066Sahrens int 1578fa9e4066Sahrens _fini(void) 1579fa9e4066Sahrens { 1580fa9e4066Sahrens int error; 1581fa9e4066Sahrens 1582ea8dc4b6Seschrock if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) 1583fa9e4066Sahrens return (EBUSY); 1584fa9e4066Sahrens 1585fa9e4066Sahrens if ((error = mod_remove(&modlinkage)) != 0) 1586fa9e4066Sahrens return (error); 1587fa9e4066Sahrens 1588fa9e4066Sahrens zvol_fini(); 1589fa9e4066Sahrens zfs_fini(); 1590fa9e4066Sahrens spa_fini(); 1591fa9e4066Sahrens 1592fa9e4066Sahrens ldi_ident_release(zfs_li); 1593fa9e4066Sahrens zfs_li = NULL; 1594fa9e4066Sahrens 1595fa9e4066Sahrens return (error); 1596fa9e4066Sahrens } 1597fa9e4066Sahrens 1598fa9e4066Sahrens int 1599fa9e4066Sahrens _info(struct modinfo *modinfop) 1600fa9e4066Sahrens { 1601fa9e4066Sahrens return (mod_info(&modlinkage, modinfop)); 1602fa9e4066Sahrens } 1603