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 /* 2255434c77Sek * Copyright 2007 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> 43*b1b8ab34Slling #include <sys/spa_impl.h> 44fa9e4066Sahrens #include <sys/vdev.h> 45*b1b8ab34Slling #include <sys/vdev_impl.h> 46fa9e4066Sahrens #include <sys/dmu.h> 47fa9e4066Sahrens #include <sys/dsl_dir.h> 48fa9e4066Sahrens #include <sys/dsl_dataset.h> 49fa9e4066Sahrens #include <sys/dsl_prop.h> 50fa9e4066Sahrens #include <sys/ddi.h> 51fa9e4066Sahrens #include <sys/sunddi.h> 52fa9e4066Sahrens #include <sys/sunldi.h> 53fa9e4066Sahrens #include <sys/policy.h> 54fa9e4066Sahrens #include <sys/zone.h> 55fa9e4066Sahrens #include <sys/nvpair.h> 56fa9e4066Sahrens #include <sys/pathname.h> 57fa9e4066Sahrens #include <sys/mount.h> 58fa9e4066Sahrens #include <sys/sdt.h> 59fa9e4066Sahrens #include <sys/fs/zfs.h> 60fa9e4066Sahrens #include <sys/zfs_ctldir.h> 61a2eea2e1Sahrens #include <sys/zvol.h> 62fa9e4066Sahrens 63fa9e4066Sahrens #include "zfs_namecheck.h" 64e9dbad6fSeschrock #include "zfs_prop.h" 65fa9e4066Sahrens 66fa9e4066Sahrens extern struct modlfs zfs_modlfs; 67fa9e4066Sahrens 68fa9e4066Sahrens extern void zfs_init(void); 69fa9e4066Sahrens extern void zfs_fini(void); 70fa9e4066Sahrens 71fa9e4066Sahrens ldi_ident_t zfs_li = NULL; 72fa9e4066Sahrens dev_info_t *zfs_dip; 73fa9e4066Sahrens 74fa9e4066Sahrens typedef int zfs_ioc_func_t(zfs_cmd_t *); 75e9dbad6fSeschrock typedef int zfs_secpolicy_func_t(const char *, cred_t *); 76fa9e4066Sahrens 77fa9e4066Sahrens typedef struct zfs_ioc_vec { 78fa9e4066Sahrens zfs_ioc_func_t *zvec_func; 79fa9e4066Sahrens zfs_secpolicy_func_t *zvec_secpolicy; 80fa9e4066Sahrens enum { 81fa9e4066Sahrens no_name, 82fa9e4066Sahrens pool_name, 83fa9e4066Sahrens dataset_name 84fa9e4066Sahrens } zvec_namecheck; 85fa9e4066Sahrens } zfs_ioc_vec_t; 86fa9e4066Sahrens 87fa9e4066Sahrens /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ 88fa9e4066Sahrens void 89fa9e4066Sahrens __dprintf(const char *file, const char *func, int line, const char *fmt, ...) 90fa9e4066Sahrens { 91fa9e4066Sahrens const char *newfile; 92fa9e4066Sahrens char buf[256]; 93fa9e4066Sahrens va_list adx; 94fa9e4066Sahrens 95fa9e4066Sahrens /* 96fa9e4066Sahrens * Get rid of annoying "../common/" prefix to filename. 97fa9e4066Sahrens */ 98fa9e4066Sahrens newfile = strrchr(file, '/'); 99fa9e4066Sahrens if (newfile != NULL) { 100fa9e4066Sahrens newfile = newfile + 1; /* Get rid of leading / */ 101fa9e4066Sahrens } else { 102fa9e4066Sahrens newfile = file; 103fa9e4066Sahrens } 104fa9e4066Sahrens 105fa9e4066Sahrens va_start(adx, fmt); 106fa9e4066Sahrens (void) vsnprintf(buf, sizeof (buf), fmt, adx); 107fa9e4066Sahrens va_end(adx); 108fa9e4066Sahrens 109fa9e4066Sahrens /* 110fa9e4066Sahrens * To get this data, use the zfs-dprintf probe as so: 111fa9e4066Sahrens * dtrace -q -n 'zfs-dprintf \ 112fa9e4066Sahrens * /stringof(arg0) == "dbuf.c"/ \ 113fa9e4066Sahrens * {printf("%s: %s", stringof(arg1), stringof(arg3))}' 114fa9e4066Sahrens * arg0 = file name 115fa9e4066Sahrens * arg1 = function name 116fa9e4066Sahrens * arg2 = line number 117fa9e4066Sahrens * arg3 = message 118fa9e4066Sahrens */ 119fa9e4066Sahrens DTRACE_PROBE4(zfs__dprintf, 120fa9e4066Sahrens char *, newfile, char *, func, int, line, char *, buf); 121fa9e4066Sahrens } 122fa9e4066Sahrens 123fa9e4066Sahrens /* 124fa9e4066Sahrens * Policy for top-level read operations (list pools). Requires no privileges, 125fa9e4066Sahrens * and can be used in the local zone, as there is no associated dataset. 126fa9e4066Sahrens */ 127fa9e4066Sahrens /* ARGSUSED */ 128fa9e4066Sahrens static int 129e9dbad6fSeschrock zfs_secpolicy_none(const char *unused1, cred_t *cr) 130fa9e4066Sahrens { 131fa9e4066Sahrens return (0); 132fa9e4066Sahrens } 133fa9e4066Sahrens 134fa9e4066Sahrens /* 135fa9e4066Sahrens * Policy for dataset read operations (list children, get statistics). Requires 136fa9e4066Sahrens * no privileges, but must be visible in the local zone. 137fa9e4066Sahrens */ 138fa9e4066Sahrens /* ARGSUSED */ 139fa9e4066Sahrens static int 140e9dbad6fSeschrock zfs_secpolicy_read(const char *dataset, cred_t *cr) 141fa9e4066Sahrens { 142fa9e4066Sahrens if (INGLOBALZONE(curproc) || 143fa9e4066Sahrens zone_dataset_visible(dataset, NULL)) 144fa9e4066Sahrens return (0); 145fa9e4066Sahrens 146fa9e4066Sahrens return (ENOENT); 147fa9e4066Sahrens } 148fa9e4066Sahrens 149fa9e4066Sahrens static int 150fa9e4066Sahrens zfs_dozonecheck(const char *dataset, cred_t *cr) 151fa9e4066Sahrens { 152fa9e4066Sahrens uint64_t zoned; 153fa9e4066Sahrens int writable = 1; 154fa9e4066Sahrens 155fa9e4066Sahrens /* 156fa9e4066Sahrens * The dataset must be visible by this zone -- check this first 157fa9e4066Sahrens * so they don't see EPERM on something they shouldn't know about. 158fa9e4066Sahrens */ 159fa9e4066Sahrens if (!INGLOBALZONE(curproc) && 160fa9e4066Sahrens !zone_dataset_visible(dataset, &writable)) 161fa9e4066Sahrens return (ENOENT); 162fa9e4066Sahrens 163fa9e4066Sahrens if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) 164fa9e4066Sahrens return (ENOENT); 165fa9e4066Sahrens 166fa9e4066Sahrens if (INGLOBALZONE(curproc)) { 167fa9e4066Sahrens /* 168fa9e4066Sahrens * If the fs is zoned, only root can access it from the 169fa9e4066Sahrens * global zone. 170fa9e4066Sahrens */ 171fa9e4066Sahrens if (secpolicy_zfs(cr) && zoned) 172fa9e4066Sahrens return (EPERM); 173fa9e4066Sahrens } else { 174fa9e4066Sahrens /* 175fa9e4066Sahrens * If we are in a local zone, the 'zoned' property must be set. 176fa9e4066Sahrens */ 177fa9e4066Sahrens if (!zoned) 178fa9e4066Sahrens return (EPERM); 179fa9e4066Sahrens 180fa9e4066Sahrens /* must be writable by this zone */ 181fa9e4066Sahrens if (!writable) 182fa9e4066Sahrens return (EPERM); 183fa9e4066Sahrens } 184fa9e4066Sahrens return (0); 185fa9e4066Sahrens } 186fa9e4066Sahrens 187fa9e4066Sahrens /* 188fa9e4066Sahrens * Policy for dataset write operations (create children, set properties, etc). 189fa9e4066Sahrens * Requires SYS_MOUNT privilege, and must be writable in the local zone. 190fa9e4066Sahrens */ 191fa9e4066Sahrens int 192e9dbad6fSeschrock zfs_secpolicy_write(const char *dataset, cred_t *cr) 193fa9e4066Sahrens { 194fa9e4066Sahrens int error; 195fa9e4066Sahrens 196fa9e4066Sahrens if (error = zfs_dozonecheck(dataset, cr)) 197fa9e4066Sahrens return (error); 198fa9e4066Sahrens 199fa9e4066Sahrens return (secpolicy_zfs(cr)); 200fa9e4066Sahrens } 201fa9e4066Sahrens 202fa9e4066Sahrens /* 203fa9e4066Sahrens * Policy for operations that want to write a dataset's parent: 204fa9e4066Sahrens * create, destroy, snapshot, clone, restore. 205fa9e4066Sahrens */ 206fa9e4066Sahrens static int 207e9dbad6fSeschrock zfs_secpolicy_parent(const char *dataset, cred_t *cr) 208fa9e4066Sahrens { 209fa9e4066Sahrens char parentname[MAXNAMELEN]; 210fa9e4066Sahrens char *cp; 211fa9e4066Sahrens 212fa9e4066Sahrens /* 213fa9e4066Sahrens * Remove the @bla or /bla from the end of the name to get the parent. 214fa9e4066Sahrens */ 215fa9e4066Sahrens (void) strncpy(parentname, dataset, sizeof (parentname)); 216fa9e4066Sahrens cp = strrchr(parentname, '@'); 217fa9e4066Sahrens if (cp != NULL) { 218fa9e4066Sahrens cp[0] = '\0'; 219fa9e4066Sahrens } else { 220fa9e4066Sahrens cp = strrchr(parentname, '/'); 221fa9e4066Sahrens if (cp == NULL) 222fa9e4066Sahrens return (ENOENT); 223fa9e4066Sahrens cp[0] = '\0'; 224fa9e4066Sahrens 225fa9e4066Sahrens } 226fa9e4066Sahrens 227e9dbad6fSeschrock return (zfs_secpolicy_write(parentname, cr)); 228fa9e4066Sahrens } 229fa9e4066Sahrens 230fa9e4066Sahrens /* 231fa9e4066Sahrens * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires 232fa9e4066Sahrens * SYS_CONFIG privilege, which is not available in a local zone. 233fa9e4066Sahrens */ 234fa9e4066Sahrens /* ARGSUSED */ 235fa9e4066Sahrens static int 236e9dbad6fSeschrock zfs_secpolicy_config(const char *unused, cred_t *cr) 237fa9e4066Sahrens { 238fa9e4066Sahrens if (secpolicy_sys_config(cr, B_FALSE) != 0) 239fa9e4066Sahrens return (EPERM); 240fa9e4066Sahrens 241fa9e4066Sahrens return (0); 242fa9e4066Sahrens } 243fa9e4066Sahrens 244ea8dc4b6Seschrock /* 245ea8dc4b6Seschrock * Policy for fault injection. Requires all privileges. 246ea8dc4b6Seschrock */ 247ea8dc4b6Seschrock /* ARGSUSED */ 248ea8dc4b6Seschrock static int 249e9dbad6fSeschrock zfs_secpolicy_inject(const char *unused, cred_t *cr) 250ea8dc4b6Seschrock { 251ea8dc4b6Seschrock return (secpolicy_zinject(cr)); 252ea8dc4b6Seschrock } 253ea8dc4b6Seschrock 254fa9e4066Sahrens /* 255fa9e4066Sahrens * Returns the nvlist as specified by the user in the zfs_cmd_t. 256fa9e4066Sahrens */ 257fa9e4066Sahrens static int 258e9dbad6fSeschrock get_nvlist(zfs_cmd_t *zc, nvlist_t **nvp) 259fa9e4066Sahrens { 260fa9e4066Sahrens char *packed; 261fa9e4066Sahrens size_t size; 262fa9e4066Sahrens int error; 263fa9e4066Sahrens nvlist_t *config = NULL; 264fa9e4066Sahrens 265fa9e4066Sahrens /* 266e9dbad6fSeschrock * Read in and unpack the user-supplied nvlist. 267fa9e4066Sahrens */ 268e9dbad6fSeschrock if ((size = zc->zc_nvlist_src_size) == 0) 269fa9e4066Sahrens return (EINVAL); 270fa9e4066Sahrens 271fa9e4066Sahrens packed = kmem_alloc(size, KM_SLEEP); 272fa9e4066Sahrens 273e9dbad6fSeschrock if ((error = xcopyin((void *)(uintptr_t)zc->zc_nvlist_src, packed, 274fa9e4066Sahrens size)) != 0) { 275fa9e4066Sahrens kmem_free(packed, size); 276fa9e4066Sahrens return (error); 277fa9e4066Sahrens } 278fa9e4066Sahrens 279fa9e4066Sahrens if ((error = nvlist_unpack(packed, size, &config, 0)) != 0) { 280fa9e4066Sahrens kmem_free(packed, size); 281fa9e4066Sahrens return (error); 282fa9e4066Sahrens } 283fa9e4066Sahrens 284fa9e4066Sahrens kmem_free(packed, size); 285fa9e4066Sahrens 286fa9e4066Sahrens *nvp = config; 287fa9e4066Sahrens return (0); 288fa9e4066Sahrens } 289fa9e4066Sahrens 290e9dbad6fSeschrock static int 291e9dbad6fSeschrock put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) 292e9dbad6fSeschrock { 293e9dbad6fSeschrock char *packed = NULL; 294e9dbad6fSeschrock size_t size; 295e9dbad6fSeschrock int error; 296e9dbad6fSeschrock 297e9dbad6fSeschrock VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); 298e9dbad6fSeschrock 299e9dbad6fSeschrock if (size > zc->zc_nvlist_dst_size) { 300e9dbad6fSeschrock error = ENOMEM; 301e9dbad6fSeschrock } else { 302e9dbad6fSeschrock VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, 303e9dbad6fSeschrock KM_SLEEP) == 0); 304e9dbad6fSeschrock error = xcopyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, 305e9dbad6fSeschrock size); 306e9dbad6fSeschrock kmem_free(packed, size); 307e9dbad6fSeschrock } 308e9dbad6fSeschrock 309e9dbad6fSeschrock zc->zc_nvlist_dst_size = size; 310e9dbad6fSeschrock return (error); 311e9dbad6fSeschrock } 312e9dbad6fSeschrock 313fa9e4066Sahrens static int 314fa9e4066Sahrens zfs_ioc_pool_create(zfs_cmd_t *zc) 315fa9e4066Sahrens { 316fa9e4066Sahrens int error; 317fa9e4066Sahrens nvlist_t *config; 318fa9e4066Sahrens 319e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) != 0) 320fa9e4066Sahrens return (error); 321fa9e4066Sahrens 322e9dbad6fSeschrock error = spa_create(zc->zc_name, config, zc->zc_value[0] == '\0' ? 323e9dbad6fSeschrock NULL : zc->zc_value); 324fa9e4066Sahrens 325fa9e4066Sahrens nvlist_free(config); 326fa9e4066Sahrens 327fa9e4066Sahrens return (error); 328fa9e4066Sahrens } 329fa9e4066Sahrens 330fa9e4066Sahrens static int 331fa9e4066Sahrens zfs_ioc_pool_destroy(zfs_cmd_t *zc) 332fa9e4066Sahrens { 333fa9e4066Sahrens return (spa_destroy(zc->zc_name)); 334fa9e4066Sahrens } 335fa9e4066Sahrens 336fa9e4066Sahrens static int 337fa9e4066Sahrens zfs_ioc_pool_import(zfs_cmd_t *zc) 338fa9e4066Sahrens { 339fa9e4066Sahrens int error; 340fa9e4066Sahrens nvlist_t *config; 341fa9e4066Sahrens uint64_t guid; 342fa9e4066Sahrens 343e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) != 0) 344fa9e4066Sahrens return (error); 345fa9e4066Sahrens 346fa9e4066Sahrens if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || 347ea8dc4b6Seschrock guid != zc->zc_guid) 348fa9e4066Sahrens error = EINVAL; 349fa9e4066Sahrens else 350fa9e4066Sahrens error = spa_import(zc->zc_name, config, 351e9dbad6fSeschrock zc->zc_value[0] == '\0' ? NULL : zc->zc_value); 352fa9e4066Sahrens 353fa9e4066Sahrens nvlist_free(config); 354fa9e4066Sahrens 355fa9e4066Sahrens return (error); 356fa9e4066Sahrens } 357fa9e4066Sahrens 358fa9e4066Sahrens static int 359fa9e4066Sahrens zfs_ioc_pool_export(zfs_cmd_t *zc) 360fa9e4066Sahrens { 36144cd46caSbillm return (spa_export(zc->zc_name, NULL)); 362fa9e4066Sahrens } 363fa9e4066Sahrens 364fa9e4066Sahrens static int 365fa9e4066Sahrens zfs_ioc_pool_configs(zfs_cmd_t *zc) 366fa9e4066Sahrens { 367fa9e4066Sahrens nvlist_t *configs; 368fa9e4066Sahrens int error; 369fa9e4066Sahrens 370fa9e4066Sahrens if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) 371fa9e4066Sahrens return (EEXIST); 372fa9e4066Sahrens 373e9dbad6fSeschrock error = put_nvlist(zc, configs); 374fa9e4066Sahrens 375fa9e4066Sahrens nvlist_free(configs); 376fa9e4066Sahrens 377fa9e4066Sahrens return (error); 378fa9e4066Sahrens } 379fa9e4066Sahrens 380fa9e4066Sahrens static int 381fa9e4066Sahrens zfs_ioc_pool_stats(zfs_cmd_t *zc) 382fa9e4066Sahrens { 383fa9e4066Sahrens nvlist_t *config; 384fa9e4066Sahrens int error; 385ea8dc4b6Seschrock int ret = 0; 386fa9e4066Sahrens 387e9dbad6fSeschrock error = spa_get_stats(zc->zc_name, &config, zc->zc_value, 388e9dbad6fSeschrock sizeof (zc->zc_value)); 389fa9e4066Sahrens 390fa9e4066Sahrens if (config != NULL) { 391e9dbad6fSeschrock ret = put_nvlist(zc, config); 392fa9e4066Sahrens nvlist_free(config); 393ea8dc4b6Seschrock 394ea8dc4b6Seschrock /* 395ea8dc4b6Seschrock * The config may be present even if 'error' is non-zero. 396ea8dc4b6Seschrock * In this case we return success, and preserve the real errno 397ea8dc4b6Seschrock * in 'zc_cookie'. 398ea8dc4b6Seschrock */ 399ea8dc4b6Seschrock zc->zc_cookie = error; 400fa9e4066Sahrens } else { 401ea8dc4b6Seschrock ret = error; 402fa9e4066Sahrens } 403fa9e4066Sahrens 404ea8dc4b6Seschrock return (ret); 405fa9e4066Sahrens } 406fa9e4066Sahrens 407fa9e4066Sahrens /* 408fa9e4066Sahrens * Try to import the given pool, returning pool stats as appropriate so that 409fa9e4066Sahrens * user land knows which devices are available and overall pool health. 410fa9e4066Sahrens */ 411fa9e4066Sahrens static int 412fa9e4066Sahrens zfs_ioc_pool_tryimport(zfs_cmd_t *zc) 413fa9e4066Sahrens { 414fa9e4066Sahrens nvlist_t *tryconfig, *config; 415fa9e4066Sahrens int error; 416fa9e4066Sahrens 417e9dbad6fSeschrock if ((error = get_nvlist(zc, &tryconfig)) != 0) 418fa9e4066Sahrens return (error); 419fa9e4066Sahrens 420fa9e4066Sahrens config = spa_tryimport(tryconfig); 421fa9e4066Sahrens 422fa9e4066Sahrens nvlist_free(tryconfig); 423fa9e4066Sahrens 424fa9e4066Sahrens if (config == NULL) 425fa9e4066Sahrens return (EINVAL); 426fa9e4066Sahrens 427e9dbad6fSeschrock error = put_nvlist(zc, config); 428fa9e4066Sahrens nvlist_free(config); 429fa9e4066Sahrens 430fa9e4066Sahrens return (error); 431fa9e4066Sahrens } 432fa9e4066Sahrens 433fa9e4066Sahrens static int 434fa9e4066Sahrens zfs_ioc_pool_scrub(zfs_cmd_t *zc) 435fa9e4066Sahrens { 436fa9e4066Sahrens spa_t *spa; 437fa9e4066Sahrens int error; 438fa9e4066Sahrens 43906eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 44006eeb2adSek return (error); 44106eeb2adSek 44206eeb2adSek error = spa_scrub(spa, zc->zc_cookie, B_FALSE); 44306eeb2adSek 44406eeb2adSek spa_close(spa, FTAG); 44506eeb2adSek 446fa9e4066Sahrens return (error); 447fa9e4066Sahrens } 448fa9e4066Sahrens 449fa9e4066Sahrens static int 450fa9e4066Sahrens zfs_ioc_pool_freeze(zfs_cmd_t *zc) 451fa9e4066Sahrens { 452fa9e4066Sahrens spa_t *spa; 453fa9e4066Sahrens int error; 454fa9e4066Sahrens 455fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 456fa9e4066Sahrens if (error == 0) { 457fa9e4066Sahrens spa_freeze(spa); 458fa9e4066Sahrens spa_close(spa, FTAG); 459fa9e4066Sahrens } 460fa9e4066Sahrens return (error); 461fa9e4066Sahrens } 462fa9e4066Sahrens 463eaca9bbdSeschrock static int 464eaca9bbdSeschrock zfs_ioc_pool_upgrade(zfs_cmd_t *zc) 465eaca9bbdSeschrock { 466eaca9bbdSeschrock spa_t *spa; 467eaca9bbdSeschrock int error; 468eaca9bbdSeschrock 46906eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 47006eeb2adSek return (error); 47106eeb2adSek 47206eeb2adSek spa_upgrade(spa); 47306eeb2adSek 47406eeb2adSek spa_close(spa, FTAG); 47506eeb2adSek 47606eeb2adSek return (error); 47706eeb2adSek } 47806eeb2adSek 47906eeb2adSek static int 48006eeb2adSek zfs_ioc_pool_get_history(zfs_cmd_t *zc) 48106eeb2adSek { 48206eeb2adSek spa_t *spa; 48306eeb2adSek char *hist_buf; 48406eeb2adSek uint64_t size; 48506eeb2adSek int error; 48606eeb2adSek 48706eeb2adSek if ((size = zc->zc_history_len) == 0) 48806eeb2adSek return (EINVAL); 48906eeb2adSek 49006eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 49106eeb2adSek return (error); 49206eeb2adSek 493d7306b64Sek if (spa_version(spa) < ZFS_VERSION_ZPOOL_HISTORY) { 494d7306b64Sek spa_close(spa, FTAG); 495d7306b64Sek return (ENOTSUP); 496d7306b64Sek } 497d7306b64Sek 49806eeb2adSek hist_buf = kmem_alloc(size, KM_SLEEP); 49906eeb2adSek if ((error = spa_history_get(spa, &zc->zc_history_offset, 50006eeb2adSek &zc->zc_history_len, hist_buf)) == 0) { 50106eeb2adSek error = xcopyout(hist_buf, (char *)(uintptr_t)zc->zc_history, 50206eeb2adSek zc->zc_history_len); 50306eeb2adSek } 50406eeb2adSek 50506eeb2adSek spa_close(spa, FTAG); 50606eeb2adSek kmem_free(hist_buf, size); 50706eeb2adSek return (error); 50806eeb2adSek } 50906eeb2adSek 51006eeb2adSek static int 51106eeb2adSek zfs_ioc_pool_log_history(zfs_cmd_t *zc) 51206eeb2adSek { 51306eeb2adSek spa_t *spa; 51406eeb2adSek char *history_str = NULL; 51506eeb2adSek size_t size; 51606eeb2adSek int error; 51706eeb2adSek 51806eeb2adSek size = zc->zc_history_len; 51906eeb2adSek if (size == 0 || size > HIS_MAX_RECORD_LEN) 52006eeb2adSek return (EINVAL); 52106eeb2adSek 52206eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 52306eeb2adSek return (error); 52406eeb2adSek 525d7306b64Sek if (spa_version(spa) < ZFS_VERSION_ZPOOL_HISTORY) { 526d7306b64Sek spa_close(spa, FTAG); 527d7306b64Sek return (ENOTSUP); 528d7306b64Sek } 529d7306b64Sek 53006eeb2adSek /* add one for the NULL delimiter */ 53106eeb2adSek size++; 53206eeb2adSek history_str = kmem_alloc(size, KM_SLEEP); 53306eeb2adSek if ((error = xcopyin((void *)(uintptr_t)zc->zc_history, history_str, 53406eeb2adSek size)) != 0) { 535eaca9bbdSeschrock spa_close(spa, FTAG); 53606eeb2adSek kmem_free(history_str, size); 53706eeb2adSek return (error); 538eaca9bbdSeschrock } 53906eeb2adSek history_str[size - 1] = '\0'; 54006eeb2adSek 54106eeb2adSek error = spa_history_log(spa, history_str, zc->zc_history_offset); 54206eeb2adSek 54306eeb2adSek spa_close(spa, FTAG); 54406eeb2adSek kmem_free(history_str, size); 54506eeb2adSek 546eaca9bbdSeschrock return (error); 547eaca9bbdSeschrock } 548eaca9bbdSeschrock 54955434c77Sek static int 55055434c77Sek zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) 55155434c77Sek { 55255434c77Sek int error; 55355434c77Sek 554*b1b8ab34Slling if (error = dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)) 55555434c77Sek return (error); 55655434c77Sek 55755434c77Sek return (0); 55855434c77Sek } 55955434c77Sek 56055434c77Sek static int 56155434c77Sek zfs_ioc_obj_to_path(zfs_cmd_t *zc) 56255434c77Sek { 56355434c77Sek objset_t *osp; 56455434c77Sek int error; 56555434c77Sek 56655434c77Sek if ((error = dmu_objset_open(zc->zc_name, DMU_OST_ZFS, 56755434c77Sek DS_MODE_NONE | DS_MODE_READONLY, &osp)) != 0) 56855434c77Sek return (error); 56955434c77Sek 57055434c77Sek error = zfs_obj_to_path(osp, zc->zc_obj, zc->zc_value, 57155434c77Sek sizeof (zc->zc_value)); 57255434c77Sek dmu_objset_close(osp); 57355434c77Sek 57455434c77Sek return (error); 57555434c77Sek } 57655434c77Sek 577fa9e4066Sahrens static int 578fa9e4066Sahrens zfs_ioc_vdev_add(zfs_cmd_t *zc) 579fa9e4066Sahrens { 580fa9e4066Sahrens spa_t *spa; 581fa9e4066Sahrens int error; 582fa9e4066Sahrens nvlist_t *config; 583fa9e4066Sahrens 584fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 585fa9e4066Sahrens if (error != 0) 586fa9e4066Sahrens return (error); 587fa9e4066Sahrens 588*b1b8ab34Slling /* 589*b1b8ab34Slling * A root pool with concatenated devices is not supported. 590*b1b8ab34Slling * Thus, can not add a device to a root pool with one device. 591*b1b8ab34Slling */ 592*b1b8ab34Slling if (spa->spa_root_vdev->vdev_children == 1 && spa->spa_bootfs != 0) { 593*b1b8ab34Slling spa_close(spa, FTAG); 594*b1b8ab34Slling return (EDOM); 595*b1b8ab34Slling } 596*b1b8ab34Slling 597e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) == 0) { 598fa9e4066Sahrens error = spa_vdev_add(spa, config); 599fa9e4066Sahrens nvlist_free(config); 600fa9e4066Sahrens } 601fa9e4066Sahrens 602fa9e4066Sahrens spa_close(spa, FTAG); 603fa9e4066Sahrens return (error); 604fa9e4066Sahrens } 605fa9e4066Sahrens 606fa9e4066Sahrens static int 607fa9e4066Sahrens zfs_ioc_vdev_remove(zfs_cmd_t *zc) 608fa9e4066Sahrens { 60999653d4eSeschrock spa_t *spa; 61099653d4eSeschrock int error; 61199653d4eSeschrock 61299653d4eSeschrock error = spa_open(zc->zc_name, &spa, FTAG); 61399653d4eSeschrock if (error != 0) 61499653d4eSeschrock return (error); 61599653d4eSeschrock error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); 61699653d4eSeschrock spa_close(spa, FTAG); 61799653d4eSeschrock return (error); 618fa9e4066Sahrens } 619fa9e4066Sahrens 620fa9e4066Sahrens static int 621fa9e4066Sahrens zfs_ioc_vdev_online(zfs_cmd_t *zc) 622fa9e4066Sahrens { 623fa9e4066Sahrens spa_t *spa; 624fa9e4066Sahrens int error; 625fa9e4066Sahrens 62606eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 627fa9e4066Sahrens return (error); 628ea8dc4b6Seschrock error = vdev_online(spa, zc->zc_guid); 629fa9e4066Sahrens spa_close(spa, FTAG); 630fa9e4066Sahrens return (error); 631fa9e4066Sahrens } 632fa9e4066Sahrens 633fa9e4066Sahrens static int 634fa9e4066Sahrens zfs_ioc_vdev_offline(zfs_cmd_t *zc) 635fa9e4066Sahrens { 636fa9e4066Sahrens spa_t *spa; 637441d80aaSlling int istmp = zc->zc_cookie; 638fa9e4066Sahrens int error; 639fa9e4066Sahrens 64006eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 641fa9e4066Sahrens return (error); 642ea8dc4b6Seschrock error = vdev_offline(spa, zc->zc_guid, istmp); 643fa9e4066Sahrens spa_close(spa, FTAG); 644fa9e4066Sahrens return (error); 645fa9e4066Sahrens } 646fa9e4066Sahrens 647fa9e4066Sahrens static int 648fa9e4066Sahrens zfs_ioc_vdev_attach(zfs_cmd_t *zc) 649fa9e4066Sahrens { 650fa9e4066Sahrens spa_t *spa; 651fa9e4066Sahrens int replacing = zc->zc_cookie; 652fa9e4066Sahrens nvlist_t *config; 653fa9e4066Sahrens int error; 654fa9e4066Sahrens 65506eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 656fa9e4066Sahrens return (error); 657fa9e4066Sahrens 658e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) == 0) { 659ea8dc4b6Seschrock error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); 660fa9e4066Sahrens nvlist_free(config); 661fa9e4066Sahrens } 662fa9e4066Sahrens 663fa9e4066Sahrens spa_close(spa, FTAG); 664fa9e4066Sahrens return (error); 665fa9e4066Sahrens } 666fa9e4066Sahrens 667fa9e4066Sahrens static int 668fa9e4066Sahrens zfs_ioc_vdev_detach(zfs_cmd_t *zc) 669fa9e4066Sahrens { 670fa9e4066Sahrens spa_t *spa; 671fa9e4066Sahrens int error; 672fa9e4066Sahrens 67306eeb2adSek if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 674fa9e4066Sahrens return (error); 675fa9e4066Sahrens 676ea8dc4b6Seschrock error = spa_vdev_detach(spa, zc->zc_guid, B_FALSE); 677fa9e4066Sahrens 678fa9e4066Sahrens spa_close(spa, FTAG); 679fa9e4066Sahrens return (error); 680fa9e4066Sahrens } 681fa9e4066Sahrens 682c67d9675Seschrock static int 683c67d9675Seschrock zfs_ioc_vdev_setpath(zfs_cmd_t *zc) 684c67d9675Seschrock { 685c67d9675Seschrock spa_t *spa; 686e9dbad6fSeschrock char *path = zc->zc_value; 687ea8dc4b6Seschrock uint64_t guid = zc->zc_guid; 688c67d9675Seschrock int error; 689c67d9675Seschrock 690c67d9675Seschrock error = spa_open(zc->zc_name, &spa, FTAG); 691c67d9675Seschrock if (error != 0) 692c67d9675Seschrock return (error); 693c67d9675Seschrock 694c67d9675Seschrock error = spa_vdev_setpath(spa, guid, path); 695c67d9675Seschrock spa_close(spa, FTAG); 696c67d9675Seschrock return (error); 697c67d9675Seschrock } 698c67d9675Seschrock 699fa9e4066Sahrens static int 700fa9e4066Sahrens zfs_ioc_objset_stats(zfs_cmd_t *zc) 701fa9e4066Sahrens { 702fa9e4066Sahrens objset_t *os = NULL; 703fa9e4066Sahrens int error; 7047f7322feSeschrock nvlist_t *nv; 705fa9e4066Sahrens 706fa9e4066Sahrens retry: 707fa9e4066Sahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 708fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 709fa9e4066Sahrens if (error != 0) { 710fa9e4066Sahrens /* 711fa9e4066Sahrens * This is ugly: dmu_objset_open() can return EBUSY if 712fa9e4066Sahrens * the objset is held exclusively. Fortunately this hold is 713fa9e4066Sahrens * only for a short while, so we retry here. 714fa9e4066Sahrens * This avoids user code having to handle EBUSY, 715fa9e4066Sahrens * for example for a "zfs list". 716fa9e4066Sahrens */ 717fa9e4066Sahrens if (error == EBUSY) { 718fa9e4066Sahrens delay(1); 719fa9e4066Sahrens goto retry; 720fa9e4066Sahrens } 721fa9e4066Sahrens return (error); 722fa9e4066Sahrens } 723fa9e4066Sahrens 724a2eea2e1Sahrens dmu_objset_fast_stat(os, &zc->zc_objset_stats); 725fa9e4066Sahrens 7265ad82045Snd if (zc->zc_nvlist_dst != 0 && 7277f7322feSeschrock (error = dsl_prop_get_all(os, &nv)) == 0) { 728a2eea2e1Sahrens dmu_objset_stats(os, nv); 729432f72fdSahrens /* 730432f72fdSahrens * NB: zvol_get_stats() will read the objset contents, 731432f72fdSahrens * which we aren't supposed to do with a 732432f72fdSahrens * DS_MODE_STANDARD open, because it could be 733432f72fdSahrens * inconsistent. So this is a bit of a workaround... 734432f72fdSahrens */ 735432f72fdSahrens if (!zc->zc_objset_stats.dds_inconsistent && 736432f72fdSahrens dmu_objset_type(os) == DMU_OST_ZVOL) 737a2eea2e1Sahrens VERIFY(zvol_get_stats(os, nv) == 0); 738e9dbad6fSeschrock error = put_nvlist(zc, nv); 7397f7322feSeschrock nvlist_free(nv); 7407f7322feSeschrock } 741fa9e4066Sahrens 742e9dbad6fSeschrock spa_altroot(dmu_objset_spa(os), zc->zc_value, sizeof (zc->zc_value)); 743ea8dc4b6Seschrock 744fa9e4066Sahrens dmu_objset_close(os); 745fa9e4066Sahrens return (error); 746fa9e4066Sahrens } 747fa9e4066Sahrens 748fa9e4066Sahrens static int 749fa9e4066Sahrens zfs_ioc_dataset_list_next(zfs_cmd_t *zc) 750fa9e4066Sahrens { 75187e5029aSahrens objset_t *os; 752fa9e4066Sahrens int error; 753fa9e4066Sahrens char *p; 754fa9e4066Sahrens 75587e5029aSahrens retry: 75687e5029aSahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 75787e5029aSahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 75887e5029aSahrens if (error != 0) { 75987e5029aSahrens /* 76087e5029aSahrens * This is ugly: dmu_objset_open() can return EBUSY if 76187e5029aSahrens * the objset is held exclusively. Fortunately this hold is 76287e5029aSahrens * only for a short while, so we retry here. 76387e5029aSahrens * This avoids user code having to handle EBUSY, 76487e5029aSahrens * for example for a "zfs list". 76587e5029aSahrens */ 76687e5029aSahrens if (error == EBUSY) { 76787e5029aSahrens delay(1); 76887e5029aSahrens goto retry; 76987e5029aSahrens } 77087e5029aSahrens if (error == ENOENT) 77187e5029aSahrens error = ESRCH; 77287e5029aSahrens return (error); 773fa9e4066Sahrens } 774fa9e4066Sahrens 775fa9e4066Sahrens p = strrchr(zc->zc_name, '/'); 776fa9e4066Sahrens if (p == NULL || p[1] != '\0') 777fa9e4066Sahrens (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); 778fa9e4066Sahrens p = zc->zc_name + strlen(zc->zc_name); 779fa9e4066Sahrens 780fa9e4066Sahrens do { 78187e5029aSahrens error = dmu_dir_list_next(os, 78287e5029aSahrens sizeof (zc->zc_name) - (p - zc->zc_name), p, 78387e5029aSahrens NULL, &zc->zc_cookie); 784fa9e4066Sahrens if (error == ENOENT) 785fa9e4066Sahrens error = ESRCH; 78687e5029aSahrens } while (error == 0 && !INGLOBALZONE(curproc) && 787fa9e4066Sahrens !zone_dataset_visible(zc->zc_name, NULL)); 788fa9e4066Sahrens 789fa9e4066Sahrens /* 79087e5029aSahrens * If it's a hidden dataset (ie. with a '$' in its name), don't 79187e5029aSahrens * try to get stats for it. Userland will skip over it. 792fa9e4066Sahrens */ 79387e5029aSahrens if (error == 0 && strchr(zc->zc_name, '$') == NULL) 79487e5029aSahrens error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 795fa9e4066Sahrens 79687e5029aSahrens dmu_objset_close(os); 797fa9e4066Sahrens return (error); 798fa9e4066Sahrens } 799fa9e4066Sahrens 800fa9e4066Sahrens static int 801fa9e4066Sahrens zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) 802fa9e4066Sahrens { 80387e5029aSahrens objset_t *os; 804fa9e4066Sahrens int error; 805fa9e4066Sahrens 806fa9e4066Sahrens retry: 80787e5029aSahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 80887e5029aSahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 80987e5029aSahrens if (error != 0) { 810fa9e4066Sahrens /* 81187e5029aSahrens * This is ugly: dmu_objset_open() can return EBUSY if 812fa9e4066Sahrens * the objset is held exclusively. Fortunately this hold is 813fa9e4066Sahrens * only for a short while, so we retry here. 814fa9e4066Sahrens * This avoids user code having to handle EBUSY, 81587e5029aSahrens * for example for a "zfs list". 816fa9e4066Sahrens */ 817fa9e4066Sahrens if (error == EBUSY) { 818fa9e4066Sahrens delay(1); 819fa9e4066Sahrens goto retry; 820fa9e4066Sahrens } 821fa9e4066Sahrens if (error == ENOENT) 82287e5029aSahrens error = ESRCH; 823fa9e4066Sahrens return (error); 824fa9e4066Sahrens } 825fa9e4066Sahrens 826b81d61a6Slling /* 827b81d61a6Slling * A dataset name of maximum length cannot have any snapshots, 828b81d61a6Slling * so exit immediately. 829b81d61a6Slling */ 830b81d61a6Slling if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { 83187e5029aSahrens dmu_objset_close(os); 832b81d61a6Slling return (ESRCH); 833fa9e4066Sahrens } 834fa9e4066Sahrens 83587e5029aSahrens error = dmu_snapshot_list_next(os, 83687e5029aSahrens sizeof (zc->zc_name) - strlen(zc->zc_name), 83787e5029aSahrens zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie); 83887e5029aSahrens if (error == ENOENT) 83987e5029aSahrens error = ESRCH; 840fa9e4066Sahrens 84187e5029aSahrens if (error == 0) 84287e5029aSahrens error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 843fa9e4066Sahrens 84487e5029aSahrens dmu_objset_close(os); 845fa9e4066Sahrens return (error); 846fa9e4066Sahrens } 847fa9e4066Sahrens 848fa9e4066Sahrens static int 849e9dbad6fSeschrock zfs_set_prop_nvlist(const char *name, dev_t dev, cred_t *cr, nvlist_t *nvl) 850fa9e4066Sahrens { 851e9dbad6fSeschrock nvpair_t *elem; 852e9dbad6fSeschrock int error; 853e9dbad6fSeschrock const char *propname; 854e9dbad6fSeschrock zfs_prop_t prop; 855e9dbad6fSeschrock uint64_t intval; 856e9dbad6fSeschrock char *strval; 857c9431fa1Sahl char buf[MAXNAMELEN]; 858c9431fa1Sahl const char *p; 859c9431fa1Sahl spa_t *spa; 860e9dbad6fSeschrock 861e9dbad6fSeschrock elem = NULL; 862e9dbad6fSeschrock while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 863e9dbad6fSeschrock propname = nvpair_name(elem); 864e9dbad6fSeschrock 865e9dbad6fSeschrock if ((prop = zfs_name_to_prop(propname)) == 866e9dbad6fSeschrock ZFS_PROP_INVAL) { 867e9dbad6fSeschrock /* 868e9dbad6fSeschrock * If this is a user-defined property, it must be a 869e9dbad6fSeschrock * string, and there is no further validation to do. 870e9dbad6fSeschrock */ 871e9dbad6fSeschrock if (!zfs_prop_user(propname) || 872e9dbad6fSeschrock nvpair_type(elem) != DATA_TYPE_STRING) 873e9dbad6fSeschrock return (EINVAL); 874e9dbad6fSeschrock 875e9dbad6fSeschrock VERIFY(nvpair_value_string(elem, &strval) == 0); 876e9dbad6fSeschrock error = dsl_prop_set(name, propname, 1, 877e9dbad6fSeschrock strlen(strval) + 1, strval); 878e9dbad6fSeschrock if (error == 0) 879e9dbad6fSeschrock continue; 880e9dbad6fSeschrock else 88146657f8dSmmusante return (error); 882e9dbad6fSeschrock } 883fa9e4066Sahrens 884e9dbad6fSeschrock /* 885e9dbad6fSeschrock * Check permissions for special properties. 886e9dbad6fSeschrock */ 887e9dbad6fSeschrock switch (prop) { 888e9dbad6fSeschrock case ZFS_PROP_ZONED: 889e9dbad6fSeschrock /* 890e9dbad6fSeschrock * Disallow setting of 'zoned' from within a local zone. 891e9dbad6fSeschrock */ 892e9dbad6fSeschrock if (!INGLOBALZONE(curproc)) 893e9dbad6fSeschrock return (EPERM); 894e9dbad6fSeschrock break; 895fa9e4066Sahrens 896e9dbad6fSeschrock case ZFS_PROP_QUOTA: 897e9dbad6fSeschrock if (error = zfs_dozonecheck(name, cr)) 898e9dbad6fSeschrock return (error); 899fa9e4066Sahrens 900e9dbad6fSeschrock if (!INGLOBALZONE(curproc)) { 901e9dbad6fSeschrock uint64_t zoned; 902e9dbad6fSeschrock char setpoint[MAXNAMELEN]; 903e9dbad6fSeschrock int dslen; 904e9dbad6fSeschrock /* 905e9dbad6fSeschrock * Unprivileged users are allowed to modify the 906e9dbad6fSeschrock * quota on things *under* (ie. contained by) 907e9dbad6fSeschrock * the thing they own. 908e9dbad6fSeschrock */ 909e9dbad6fSeschrock if (dsl_prop_get_integer(name, "zoned", &zoned, 910e9dbad6fSeschrock setpoint)) 911e9dbad6fSeschrock return (EPERM); 912e9dbad6fSeschrock if (!zoned) /* this shouldn't happen */ 913e9dbad6fSeschrock return (EPERM); 914e9dbad6fSeschrock dslen = strlen(name); 915e9dbad6fSeschrock if (dslen <= strlen(setpoint)) 916e9dbad6fSeschrock return (EPERM); 917e9dbad6fSeschrock } 918c9431fa1Sahl break; 919c9431fa1Sahl 920c9431fa1Sahl case ZFS_PROP_COMPRESSION: 921c9431fa1Sahl /* 922c9431fa1Sahl * If the user specified gzip compression, make sure 923c9431fa1Sahl * the SPA supports it. We ignore any errors here since 924c9431fa1Sahl * we'll catch them later. 925c9431fa1Sahl */ 926c9431fa1Sahl if (nvpair_type(elem) == DATA_TYPE_UINT64 && 927c9431fa1Sahl nvpair_value_uint64(elem, &intval) == 0 && 928c9431fa1Sahl intval >= ZIO_COMPRESS_GZIP_1 && 929c9431fa1Sahl intval <= ZIO_COMPRESS_GZIP_9) { 930c9431fa1Sahl if ((p = strchr(name, '/')) == NULL) { 931c9431fa1Sahl p = name; 932c9431fa1Sahl } else { 933c9431fa1Sahl bcopy(name, buf, p - name); 934c9431fa1Sahl buf[p - name] = '\0'; 935c9431fa1Sahl p = buf; 936c9431fa1Sahl } 937c9431fa1Sahl 938c9431fa1Sahl if (spa_open(p, &spa, FTAG) == 0) { 939c9431fa1Sahl if (spa_version(spa) < 940c9431fa1Sahl ZFS_VERSION_GZIP_COMPRESSION) { 941c9431fa1Sahl spa_close(spa, FTAG); 942c9431fa1Sahl return (ENOTSUP); 943c9431fa1Sahl } 944c9431fa1Sahl 945c9431fa1Sahl spa_close(spa, FTAG); 946c9431fa1Sahl } 947c9431fa1Sahl } 948c9431fa1Sahl break; 949e9dbad6fSeschrock } 950e9dbad6fSeschrock 951e9dbad6fSeschrock switch (prop) { 952e9dbad6fSeschrock case ZFS_PROP_QUOTA: 953e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 954e9dbad6fSeschrock (error = dsl_dir_set_quota(name, 955e9dbad6fSeschrock intval)) != 0) 956e9dbad6fSeschrock return (error); 957e9dbad6fSeschrock break; 958e9dbad6fSeschrock 959e9dbad6fSeschrock case ZFS_PROP_RESERVATION: 960e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 961e9dbad6fSeschrock (error = dsl_dir_set_reservation(name, 962e9dbad6fSeschrock intval)) != 0) 963e9dbad6fSeschrock return (error); 964e9dbad6fSeschrock break; 965e9dbad6fSeschrock 966e9dbad6fSeschrock case ZFS_PROP_VOLSIZE: 967e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 968e9dbad6fSeschrock (error = zvol_set_volsize(name, dev, 969e9dbad6fSeschrock intval)) != 0) 970e9dbad6fSeschrock return (error); 971e9dbad6fSeschrock break; 972e9dbad6fSeschrock 973e9dbad6fSeschrock case ZFS_PROP_VOLBLOCKSIZE: 974e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 975e9dbad6fSeschrock (error = zvol_set_volblocksize(name, 976e9dbad6fSeschrock intval)) != 0) 977e9dbad6fSeschrock return (error); 978e9dbad6fSeschrock break; 979e9dbad6fSeschrock 980e9dbad6fSeschrock default: 981e9dbad6fSeschrock if (nvpair_type(elem) == DATA_TYPE_STRING) { 982e9dbad6fSeschrock if (zfs_prop_get_type(prop) != 983e9dbad6fSeschrock prop_type_string) 984e9dbad6fSeschrock return (EINVAL); 985acd76fe5Seschrock VERIFY(nvpair_value_string(elem, &strval) == 0); 986acd76fe5Seschrock if ((error = dsl_prop_set(name, 987e9dbad6fSeschrock nvpair_name(elem), 1, strlen(strval) + 1, 988acd76fe5Seschrock strval)) != 0) 989acd76fe5Seschrock return (error); 990e9dbad6fSeschrock } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { 991a2eea2e1Sahrens const char *unused; 992a2eea2e1Sahrens 993acd76fe5Seschrock VERIFY(nvpair_value_uint64(elem, &intval) == 0); 994e9dbad6fSeschrock 995e9dbad6fSeschrock switch (zfs_prop_get_type(prop)) { 996e9dbad6fSeschrock case prop_type_number: 997e9dbad6fSeschrock break; 998e9dbad6fSeschrock case prop_type_boolean: 999e9dbad6fSeschrock if (intval > 1) 1000acd76fe5Seschrock return (EINVAL); 1001e9dbad6fSeschrock break; 1002e9dbad6fSeschrock case prop_type_string: 1003acd76fe5Seschrock return (EINVAL); 1004e9dbad6fSeschrock case prop_type_index: 1005acd76fe5Seschrock if (zfs_prop_index_to_string(prop, 1006acd76fe5Seschrock intval, &unused) != 0) 1007acd76fe5Seschrock return (EINVAL); 1008e9dbad6fSeschrock break; 1009e9dbad6fSeschrock default: 1010e9dbad6fSeschrock cmn_err(CE_PANIC, "unknown property " 1011e9dbad6fSeschrock "type"); 1012e9dbad6fSeschrock break; 1013e9dbad6fSeschrock } 1014e9dbad6fSeschrock 1015acd76fe5Seschrock if ((error = dsl_prop_set(name, propname, 1016acd76fe5Seschrock 8, 1, &intval)) != 0) 1017acd76fe5Seschrock return (error); 1018e9dbad6fSeschrock } else { 1019e9dbad6fSeschrock return (EINVAL); 1020e9dbad6fSeschrock } 1021e9dbad6fSeschrock break; 1022e9dbad6fSeschrock } 1023e9dbad6fSeschrock } 1024e9dbad6fSeschrock 1025e9dbad6fSeschrock return (0); 1026fa9e4066Sahrens } 1027fa9e4066Sahrens 1028fa9e4066Sahrens static int 1029e9dbad6fSeschrock zfs_ioc_set_prop(zfs_cmd_t *zc) 1030fa9e4066Sahrens { 1031e9dbad6fSeschrock nvlist_t *nvl; 1032e9dbad6fSeschrock int error; 1033e9dbad6fSeschrock zfs_prop_t prop; 1034e9dbad6fSeschrock 1035e9dbad6fSeschrock /* 1036e9dbad6fSeschrock * If zc_value is set, then this is an attempt to inherit a value. 1037e9dbad6fSeschrock * Otherwise, zc_nvlist refers to a list of properties to set. 1038e9dbad6fSeschrock */ 1039e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 1040e9dbad6fSeschrock if (!zfs_prop_user(zc->zc_value) && 1041e9dbad6fSeschrock ((prop = zfs_name_to_prop(zc->zc_value)) == 1042e9dbad6fSeschrock ZFS_PROP_INVAL || 1043e9dbad6fSeschrock !zfs_prop_inheritable(prop))) 1044e9dbad6fSeschrock return (EINVAL); 1045e9dbad6fSeschrock 1046e9dbad6fSeschrock return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL)); 1047e9dbad6fSeschrock } 1048e9dbad6fSeschrock 1049e9dbad6fSeschrock if ((error = get_nvlist(zc, &nvl)) != 0) 1050e9dbad6fSeschrock return (error); 1051e9dbad6fSeschrock 1052e9dbad6fSeschrock error = zfs_set_prop_nvlist(zc->zc_name, zc->zc_dev, 1053e9dbad6fSeschrock (cred_t *)(uintptr_t)zc->zc_cred, nvl); 1054e9dbad6fSeschrock nvlist_free(nvl); 1055e9dbad6fSeschrock return (error); 1056fa9e4066Sahrens } 1057fa9e4066Sahrens 1058*b1b8ab34Slling static int 1059*b1b8ab34Slling zfs_ioc_pool_props_set(zfs_cmd_t *zc) 1060*b1b8ab34Slling { 1061*b1b8ab34Slling nvlist_t *nvl; 1062*b1b8ab34Slling int error, reset_bootfs = 0; 1063*b1b8ab34Slling uint64_t objnum; 1064*b1b8ab34Slling zpool_prop_t prop; 1065*b1b8ab34Slling nvpair_t *elem; 1066*b1b8ab34Slling char *propname, *strval; 1067*b1b8ab34Slling spa_t *spa; 1068*b1b8ab34Slling vdev_t *rvdev; 1069*b1b8ab34Slling char *vdev_type; 1070*b1b8ab34Slling objset_t *os; 1071*b1b8ab34Slling 1072*b1b8ab34Slling if ((error = get_nvlist(zc, &nvl)) != 0) 1073*b1b8ab34Slling return (error); 1074*b1b8ab34Slling 1075*b1b8ab34Slling if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 1076*b1b8ab34Slling nvlist_free(nvl); 1077*b1b8ab34Slling return (error); 1078*b1b8ab34Slling } 1079*b1b8ab34Slling 1080*b1b8ab34Slling if (spa_version(spa) < ZFS_VERSION_BOOTFS) { 1081*b1b8ab34Slling nvlist_free(nvl); 1082*b1b8ab34Slling spa_close(spa, FTAG); 1083*b1b8ab34Slling return (ENOTSUP); 1084*b1b8ab34Slling } 1085*b1b8ab34Slling 1086*b1b8ab34Slling elem = NULL; 1087*b1b8ab34Slling while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 1088*b1b8ab34Slling 1089*b1b8ab34Slling propname = nvpair_name(elem); 1090*b1b8ab34Slling 1091*b1b8ab34Slling if ((prop = zpool_name_to_prop(propname)) == 1092*b1b8ab34Slling ZFS_PROP_INVAL) { 1093*b1b8ab34Slling nvlist_free(nvl); 1094*b1b8ab34Slling spa_close(spa, FTAG); 1095*b1b8ab34Slling return (EINVAL); 1096*b1b8ab34Slling } 1097*b1b8ab34Slling 1098*b1b8ab34Slling switch (prop) { 1099*b1b8ab34Slling case ZFS_PROP_BOOTFS: 1100*b1b8ab34Slling /* 1101*b1b8ab34Slling * A bootable filesystem can not be on a RAIDZ pool 1102*b1b8ab34Slling * nor a striped pool with more than 1 device. 1103*b1b8ab34Slling */ 1104*b1b8ab34Slling rvdev = spa->spa_root_vdev; 1105*b1b8ab34Slling vdev_type = 1106*b1b8ab34Slling rvdev->vdev_child[0]->vdev_ops->vdev_op_type; 1107*b1b8ab34Slling if (strcmp(vdev_type, VDEV_TYPE_RAIDZ) == 0 || 1108*b1b8ab34Slling (strcmp(vdev_type, VDEV_TYPE_MIRROR) != 0 && 1109*b1b8ab34Slling rvdev->vdev_children > 1)) { 1110*b1b8ab34Slling error = ENOTSUP; 1111*b1b8ab34Slling break; 1112*b1b8ab34Slling } 1113*b1b8ab34Slling 1114*b1b8ab34Slling reset_bootfs = 1; 1115*b1b8ab34Slling 1116*b1b8ab34Slling VERIFY(nvpair_value_string(elem, &strval) == 0); 1117*b1b8ab34Slling if (strval == NULL || strval[0] == '\0') { 1118*b1b8ab34Slling objnum = 1119*b1b8ab34Slling zfs_prop_default_numeric(ZFS_PROP_BOOTFS); 1120*b1b8ab34Slling break; 1121*b1b8ab34Slling } 1122*b1b8ab34Slling 1123*b1b8ab34Slling if (error = dmu_objset_open(strval, DMU_OST_ZFS, 1124*b1b8ab34Slling DS_MODE_STANDARD | DS_MODE_READONLY, &os)) 1125*b1b8ab34Slling break; 1126*b1b8ab34Slling objnum = dmu_objset_id(os); 1127*b1b8ab34Slling dmu_objset_close(os); 1128*b1b8ab34Slling break; 1129*b1b8ab34Slling 1130*b1b8ab34Slling default: 1131*b1b8ab34Slling error = EINVAL; 1132*b1b8ab34Slling } 1133*b1b8ab34Slling 1134*b1b8ab34Slling if (error) 1135*b1b8ab34Slling break; 1136*b1b8ab34Slling } 1137*b1b8ab34Slling if (error == 0) { 1138*b1b8ab34Slling if (reset_bootfs) { 1139*b1b8ab34Slling VERIFY(nvlist_remove(nvl, 1140*b1b8ab34Slling zpool_prop_to_name(ZFS_PROP_BOOTFS), 1141*b1b8ab34Slling DATA_TYPE_STRING) == 0); 1142*b1b8ab34Slling VERIFY(nvlist_add_uint64(nvl, 1143*b1b8ab34Slling zpool_prop_to_name(ZFS_PROP_BOOTFS), objnum) == 0); 1144*b1b8ab34Slling } 1145*b1b8ab34Slling error = spa_set_props(spa, nvl); 1146*b1b8ab34Slling } 1147*b1b8ab34Slling 1148*b1b8ab34Slling nvlist_free(nvl); 1149*b1b8ab34Slling spa_close(spa, FTAG); 1150*b1b8ab34Slling 1151*b1b8ab34Slling return (error); 1152*b1b8ab34Slling } 1153*b1b8ab34Slling 1154*b1b8ab34Slling static int 1155*b1b8ab34Slling zfs_ioc_pool_props_get(zfs_cmd_t *zc) 1156*b1b8ab34Slling { 1157*b1b8ab34Slling spa_t *spa; 1158*b1b8ab34Slling int error; 1159*b1b8ab34Slling nvlist_t *nvp = NULL; 1160*b1b8ab34Slling 1161*b1b8ab34Slling if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1162*b1b8ab34Slling return (error); 1163*b1b8ab34Slling 1164*b1b8ab34Slling error = spa_get_props(spa, &nvp); 1165*b1b8ab34Slling 1166*b1b8ab34Slling if (error == 0 && zc->zc_nvlist_dst != NULL) 1167*b1b8ab34Slling error = put_nvlist(zc, nvp); 1168*b1b8ab34Slling else 1169*b1b8ab34Slling error = EFAULT; 1170*b1b8ab34Slling 1171*b1b8ab34Slling spa_close(spa, FTAG); 1172*b1b8ab34Slling 1173*b1b8ab34Slling if (nvp) 1174*b1b8ab34Slling nvlist_free(nvp); 1175*b1b8ab34Slling return (error); 1176*b1b8ab34Slling } 1177*b1b8ab34Slling 1178fa9e4066Sahrens static int 1179fa9e4066Sahrens zfs_ioc_create_minor(zfs_cmd_t *zc) 1180fa9e4066Sahrens { 1181e9dbad6fSeschrock return (zvol_create_minor(zc->zc_name, zc->zc_dev)); 1182fa9e4066Sahrens } 1183fa9e4066Sahrens 1184fa9e4066Sahrens static int 1185fa9e4066Sahrens zfs_ioc_remove_minor(zfs_cmd_t *zc) 1186fa9e4066Sahrens { 1187e9dbad6fSeschrock return (zvol_remove_minor(zc->zc_name)); 1188fa9e4066Sahrens } 1189fa9e4066Sahrens 1190fa9e4066Sahrens /* 1191fa9e4066Sahrens * Search the vfs list for a specified resource. Returns a pointer to it 1192fa9e4066Sahrens * or NULL if no suitable entry is found. The caller of this routine 1193fa9e4066Sahrens * is responsible for releasing the returned vfs pointer. 1194fa9e4066Sahrens */ 1195fa9e4066Sahrens static vfs_t * 1196fa9e4066Sahrens zfs_get_vfs(const char *resource) 1197fa9e4066Sahrens { 1198fa9e4066Sahrens struct vfs *vfsp; 1199fa9e4066Sahrens struct vfs *vfs_found = NULL; 1200fa9e4066Sahrens 1201fa9e4066Sahrens vfs_list_read_lock(); 1202fa9e4066Sahrens vfsp = rootvfs; 1203fa9e4066Sahrens do { 1204fa9e4066Sahrens if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { 1205fa9e4066Sahrens VFS_HOLD(vfsp); 1206fa9e4066Sahrens vfs_found = vfsp; 1207fa9e4066Sahrens break; 1208fa9e4066Sahrens } 1209fa9e4066Sahrens vfsp = vfsp->vfs_next; 1210fa9e4066Sahrens } while (vfsp != rootvfs); 1211fa9e4066Sahrens vfs_list_unlock(); 1212fa9e4066Sahrens return (vfs_found); 1213fa9e4066Sahrens } 1214fa9e4066Sahrens 1215fa9e4066Sahrens static void 1216fa9e4066Sahrens zfs_create_cb(objset_t *os, void *arg, dmu_tx_t *tx) 1217fa9e4066Sahrens { 1218e9dbad6fSeschrock zfs_create_data_t *zc = arg; 1219fa9e4066Sahrens zfs_create_fs(os, (cred_t *)(uintptr_t)zc->zc_cred, tx); 1220fa9e4066Sahrens } 1221fa9e4066Sahrens 1222fa9e4066Sahrens static int 1223fa9e4066Sahrens zfs_ioc_create(zfs_cmd_t *zc) 1224fa9e4066Sahrens { 1225fa9e4066Sahrens objset_t *clone; 1226fa9e4066Sahrens int error = 0; 1227e9dbad6fSeschrock zfs_create_data_t cbdata = { 0 }; 1228fa9e4066Sahrens void (*cbfunc)(objset_t *os, void *arg, dmu_tx_t *tx); 1229fa9e4066Sahrens dmu_objset_type_t type = zc->zc_objset_type; 1230fa9e4066Sahrens 1231fa9e4066Sahrens switch (type) { 1232fa9e4066Sahrens 1233fa9e4066Sahrens case DMU_OST_ZFS: 1234fa9e4066Sahrens cbfunc = zfs_create_cb; 1235fa9e4066Sahrens break; 1236fa9e4066Sahrens 1237fa9e4066Sahrens case DMU_OST_ZVOL: 1238fa9e4066Sahrens cbfunc = zvol_create_cb; 1239fa9e4066Sahrens break; 1240fa9e4066Sahrens 1241fa9e4066Sahrens default: 12421d452cf5Sahrens cbfunc = NULL; 1243fa9e4066Sahrens } 12441d452cf5Sahrens if (strchr(zc->zc_name, '@')) 12451d452cf5Sahrens return (EINVAL); 1246fa9e4066Sahrens 1247e9dbad6fSeschrock if (zc->zc_nvlist_src != NULL && 1248e9dbad6fSeschrock (error = get_nvlist(zc, &cbdata.zc_props)) != 0) 1249e9dbad6fSeschrock return (error); 1250e9dbad6fSeschrock 1251e9dbad6fSeschrock cbdata.zc_cred = (cred_t *)(uintptr_t)zc->zc_cred; 1252e9dbad6fSeschrock cbdata.zc_dev = (dev_t)zc->zc_dev; 1253e9dbad6fSeschrock 1254e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 1255fa9e4066Sahrens /* 1256fa9e4066Sahrens * We're creating a clone of an existing snapshot. 1257fa9e4066Sahrens */ 1258e9dbad6fSeschrock zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 1259e9dbad6fSeschrock if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { 1260e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1261fa9e4066Sahrens return (EINVAL); 1262e9dbad6fSeschrock } 1263fa9e4066Sahrens 1264e9dbad6fSeschrock error = dmu_objset_open(zc->zc_value, type, 1265fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &clone); 1266e9dbad6fSeschrock if (error) { 1267e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1268fa9e4066Sahrens return (error); 1269e9dbad6fSeschrock } 1270fa9e4066Sahrens error = dmu_objset_create(zc->zc_name, type, clone, NULL, NULL); 1271fa9e4066Sahrens dmu_objset_close(clone); 1272fa9e4066Sahrens } else { 1273e9dbad6fSeschrock if (cbfunc == NULL) { 1274e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 12751d452cf5Sahrens return (EINVAL); 1276e9dbad6fSeschrock } 12775c5460e9Seschrock 1278e9dbad6fSeschrock if (type == DMU_OST_ZVOL) { 1279e9dbad6fSeschrock uint64_t volsize, volblocksize; 1280e9dbad6fSeschrock 1281e9dbad6fSeschrock if (cbdata.zc_props == NULL || 1282e9dbad6fSeschrock nvlist_lookup_uint64(cbdata.zc_props, 1283e9dbad6fSeschrock zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1284e9dbad6fSeschrock &volsize) != 0) { 1285e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1286e9dbad6fSeschrock return (EINVAL); 1287e9dbad6fSeschrock } 1288e9dbad6fSeschrock 1289e9dbad6fSeschrock if ((error = nvlist_lookup_uint64(cbdata.zc_props, 1290e9dbad6fSeschrock zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1291e9dbad6fSeschrock &volblocksize)) != 0 && error != ENOENT) { 1292e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1293e9dbad6fSeschrock return (EINVAL); 1294e9dbad6fSeschrock } 1295e9dbad6fSeschrock 1296e9dbad6fSeschrock if (error != 0) 1297e9dbad6fSeschrock volblocksize = zfs_prop_default_numeric( 1298e9dbad6fSeschrock ZFS_PROP_VOLBLOCKSIZE); 1299e9dbad6fSeschrock 1300e9dbad6fSeschrock if ((error = zvol_check_volblocksize( 1301e9dbad6fSeschrock volblocksize)) != 0 || 1302e9dbad6fSeschrock (error = zvol_check_volsize(volsize, 1303e9dbad6fSeschrock volblocksize)) != 0) { 1304e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 13055c5460e9Seschrock return (error); 1306e9dbad6fSeschrock } 1307fa9e4066Sahrens } 1308e9dbad6fSeschrock 1309e9dbad6fSeschrock error = dmu_objset_create(zc->zc_name, type, NULL, cbfunc, 1310e9dbad6fSeschrock &cbdata); 1311fa9e4066Sahrens } 1312e9dbad6fSeschrock 1313e9dbad6fSeschrock /* 1314e9dbad6fSeschrock * It would be nice to do this atomically. 1315e9dbad6fSeschrock */ 1316e9dbad6fSeschrock if (error == 0) { 1317e9dbad6fSeschrock if ((error = zfs_set_prop_nvlist(zc->zc_name, 1318e9dbad6fSeschrock zc->zc_dev, (cred_t *)(uintptr_t)zc->zc_cred, 1319e9dbad6fSeschrock cbdata.zc_props)) != 0) 1320e9dbad6fSeschrock (void) dmu_objset_destroy(zc->zc_name); 1321e9dbad6fSeschrock } 1322e9dbad6fSeschrock 1323e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1324fa9e4066Sahrens return (error); 1325fa9e4066Sahrens } 1326fa9e4066Sahrens 1327fa9e4066Sahrens static int 13281d452cf5Sahrens zfs_ioc_snapshot(zfs_cmd_t *zc) 1329fa9e4066Sahrens { 1330e9dbad6fSeschrock if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) 13311d452cf5Sahrens return (EINVAL); 13321d452cf5Sahrens return (dmu_objset_snapshot(zc->zc_name, 1333e9dbad6fSeschrock zc->zc_value, zc->zc_cookie)); 13341d452cf5Sahrens } 1335fa9e4066Sahrens 13361d452cf5Sahrens static int 13371d452cf5Sahrens zfs_unmount_snap(char *name, void *arg) 13381d452cf5Sahrens { 13391d452cf5Sahrens char *snapname = arg; 13401d452cf5Sahrens char *cp; 13410b69c2f0Sahrens vfs_t *vfsp = NULL; 13421d452cf5Sahrens 13431d452cf5Sahrens /* 13441d452cf5Sahrens * Snapshots (which are under .zfs control) must be unmounted 13451d452cf5Sahrens * before they can be destroyed. 13461d452cf5Sahrens */ 13471d452cf5Sahrens 13481d452cf5Sahrens if (snapname) { 13491d452cf5Sahrens (void) strcat(name, "@"); 13501d452cf5Sahrens (void) strcat(name, snapname); 13511d452cf5Sahrens vfsp = zfs_get_vfs(name); 13521d452cf5Sahrens cp = strchr(name, '@'); 13531d452cf5Sahrens *cp = '\0'; 13540b69c2f0Sahrens } else if (strchr(name, '@')) { 13551d452cf5Sahrens vfsp = zfs_get_vfs(name); 13561d452cf5Sahrens } 13571d452cf5Sahrens 13581d452cf5Sahrens if (vfsp) { 1359fa9e4066Sahrens /* 13601d452cf5Sahrens * Always force the unmount for snapshots. 1361fa9e4066Sahrens */ 13621d452cf5Sahrens int flag = MS_FORCE; 13631d452cf5Sahrens int err; 13641d452cf5Sahrens 13651d452cf5Sahrens if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { 1366fa9e4066Sahrens VFS_RELE(vfsp); 13671d452cf5Sahrens return (err); 1368fa9e4066Sahrens } 13691d452cf5Sahrens VFS_RELE(vfsp); 13701d452cf5Sahrens if ((err = dounmount(vfsp, flag, kcred)) != 0) 13711d452cf5Sahrens return (err); 13721d452cf5Sahrens } 13731d452cf5Sahrens return (0); 13741d452cf5Sahrens } 13751d452cf5Sahrens 13761d452cf5Sahrens static int 13771d452cf5Sahrens zfs_ioc_destroy_snaps(zfs_cmd_t *zc) 13781d452cf5Sahrens { 13791d452cf5Sahrens int err; 13801d452cf5Sahrens 1381e9dbad6fSeschrock if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) 13821d452cf5Sahrens return (EINVAL); 13831d452cf5Sahrens err = dmu_objset_find(zc->zc_name, 1384e9dbad6fSeschrock zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN); 13851d452cf5Sahrens if (err) 13861d452cf5Sahrens return (err); 1387e9dbad6fSeschrock return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value)); 13881d452cf5Sahrens } 13891d452cf5Sahrens 13901d452cf5Sahrens static int 13911d452cf5Sahrens zfs_ioc_destroy(zfs_cmd_t *zc) 13921d452cf5Sahrens { 13931d452cf5Sahrens if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { 13941d452cf5Sahrens int err = zfs_unmount_snap(zc->zc_name, NULL); 13951d452cf5Sahrens if (err) 13961d452cf5Sahrens return (err); 1397fa9e4066Sahrens } 1398fa9e4066Sahrens 1399fa9e4066Sahrens return (dmu_objset_destroy(zc->zc_name)); 1400fa9e4066Sahrens } 1401fa9e4066Sahrens 1402fa9e4066Sahrens static int 1403fa9e4066Sahrens zfs_ioc_rollback(zfs_cmd_t *zc) 1404fa9e4066Sahrens { 1405fa9e4066Sahrens return (dmu_objset_rollback(zc->zc_name)); 1406fa9e4066Sahrens } 1407fa9e4066Sahrens 1408fa9e4066Sahrens static int 1409fa9e4066Sahrens zfs_ioc_rename(zfs_cmd_t *zc) 1410fa9e4066Sahrens { 1411e9dbad6fSeschrock zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 1412e9dbad6fSeschrock if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) 1413fa9e4066Sahrens return (EINVAL); 1414fa9e4066Sahrens 1415fa9e4066Sahrens if (strchr(zc->zc_name, '@') != NULL && 1416fa9e4066Sahrens zc->zc_objset_type == DMU_OST_ZFS) { 14171d452cf5Sahrens int err = zfs_unmount_snap(zc->zc_name, NULL); 14181d452cf5Sahrens if (err) 14191d452cf5Sahrens return (err); 1420fa9e4066Sahrens } 1421fa9e4066Sahrens 1422e9dbad6fSeschrock return (dmu_objset_rename(zc->zc_name, zc->zc_value)); 1423fa9e4066Sahrens } 1424fa9e4066Sahrens 1425fa9e4066Sahrens static int 1426fa9e4066Sahrens zfs_ioc_recvbackup(zfs_cmd_t *zc) 1427fa9e4066Sahrens { 1428fa9e4066Sahrens file_t *fp; 1429fa9e4066Sahrens int error, fd; 1430a2eea2e1Sahrens offset_t new_off; 1431fa9e4066Sahrens 14323ccfa83cSahrens if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 14333ccfa83cSahrens strchr(zc->zc_value, '@') == NULL) 14343ccfa83cSahrens return (EINVAL); 14353ccfa83cSahrens 1436fa9e4066Sahrens fd = zc->zc_cookie; 1437fa9e4066Sahrens fp = getf(fd); 1438fa9e4066Sahrens if (fp == NULL) 1439fa9e4066Sahrens return (EBADF); 1440e9dbad6fSeschrock error = dmu_recvbackup(zc->zc_value, &zc->zc_begin_record, 1441e9dbad6fSeschrock &zc->zc_cookie, (boolean_t)zc->zc_guid, fp->f_vnode, 144298579b20Snd fp->f_offset); 1443a2eea2e1Sahrens 1444a2eea2e1Sahrens new_off = fp->f_offset + zc->zc_cookie; 1445a2eea2e1Sahrens if (VOP_SEEK(fp->f_vnode, fp->f_offset, &new_off) == 0) 1446a2eea2e1Sahrens fp->f_offset = new_off; 1447a2eea2e1Sahrens 1448fa9e4066Sahrens releasef(fd); 1449fa9e4066Sahrens return (error); 1450fa9e4066Sahrens } 1451fa9e4066Sahrens 1452fa9e4066Sahrens static int 1453fa9e4066Sahrens zfs_ioc_sendbackup(zfs_cmd_t *zc) 1454fa9e4066Sahrens { 1455fa9e4066Sahrens objset_t *fromsnap = NULL; 1456fa9e4066Sahrens objset_t *tosnap; 1457fa9e4066Sahrens file_t *fp; 1458fa9e4066Sahrens int error; 1459fa9e4066Sahrens 1460fa9e4066Sahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 1461fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &tosnap); 1462fa9e4066Sahrens if (error) 1463fa9e4066Sahrens return (error); 1464fa9e4066Sahrens 1465e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 1466a2eea2e1Sahrens char buf[MAXPATHLEN]; 1467a2eea2e1Sahrens char *cp; 1468a2eea2e1Sahrens 1469a2eea2e1Sahrens (void) strncpy(buf, zc->zc_name, sizeof (buf)); 1470a2eea2e1Sahrens cp = strchr(buf, '@'); 1471a2eea2e1Sahrens if (cp) 1472a2eea2e1Sahrens *(cp+1) = 0; 1473a2eea2e1Sahrens (void) strncat(buf, zc->zc_value, sizeof (buf)); 1474a2eea2e1Sahrens error = dmu_objset_open(buf, DMU_OST_ANY, 1475fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &fromsnap); 1476fa9e4066Sahrens if (error) { 1477fa9e4066Sahrens dmu_objset_close(tosnap); 1478fa9e4066Sahrens return (error); 1479fa9e4066Sahrens } 1480fa9e4066Sahrens } 1481fa9e4066Sahrens 1482fa9e4066Sahrens fp = getf(zc->zc_cookie); 1483fa9e4066Sahrens if (fp == NULL) { 1484fa9e4066Sahrens dmu_objset_close(tosnap); 1485fa9e4066Sahrens if (fromsnap) 1486fa9e4066Sahrens dmu_objset_close(fromsnap); 1487fa9e4066Sahrens return (EBADF); 1488fa9e4066Sahrens } 1489fa9e4066Sahrens 1490fa9e4066Sahrens error = dmu_sendbackup(tosnap, fromsnap, fp->f_vnode); 1491fa9e4066Sahrens 1492fa9e4066Sahrens releasef(zc->zc_cookie); 1493fa9e4066Sahrens if (fromsnap) 1494fa9e4066Sahrens dmu_objset_close(fromsnap); 1495fa9e4066Sahrens dmu_objset_close(tosnap); 1496fa9e4066Sahrens return (error); 1497fa9e4066Sahrens } 1498fa9e4066Sahrens 1499ea8dc4b6Seschrock static int 1500ea8dc4b6Seschrock zfs_ioc_inject_fault(zfs_cmd_t *zc) 1501ea8dc4b6Seschrock { 1502ea8dc4b6Seschrock int id, error; 1503ea8dc4b6Seschrock 1504ea8dc4b6Seschrock error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, 1505ea8dc4b6Seschrock &zc->zc_inject_record); 1506ea8dc4b6Seschrock 1507ea8dc4b6Seschrock if (error == 0) 1508ea8dc4b6Seschrock zc->zc_guid = (uint64_t)id; 1509ea8dc4b6Seschrock 1510ea8dc4b6Seschrock return (error); 1511ea8dc4b6Seschrock } 1512ea8dc4b6Seschrock 1513ea8dc4b6Seschrock static int 1514ea8dc4b6Seschrock zfs_ioc_clear_fault(zfs_cmd_t *zc) 1515ea8dc4b6Seschrock { 1516ea8dc4b6Seschrock return (zio_clear_fault((int)zc->zc_guid)); 1517ea8dc4b6Seschrock } 1518ea8dc4b6Seschrock 1519ea8dc4b6Seschrock static int 1520ea8dc4b6Seschrock zfs_ioc_inject_list_next(zfs_cmd_t *zc) 1521ea8dc4b6Seschrock { 1522ea8dc4b6Seschrock int id = (int)zc->zc_guid; 1523ea8dc4b6Seschrock int error; 1524ea8dc4b6Seschrock 1525ea8dc4b6Seschrock error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), 1526ea8dc4b6Seschrock &zc->zc_inject_record); 1527ea8dc4b6Seschrock 1528ea8dc4b6Seschrock zc->zc_guid = id; 1529ea8dc4b6Seschrock 1530ea8dc4b6Seschrock return (error); 1531ea8dc4b6Seschrock } 1532ea8dc4b6Seschrock 1533ea8dc4b6Seschrock static int 1534ea8dc4b6Seschrock zfs_ioc_error_log(zfs_cmd_t *zc) 1535ea8dc4b6Seschrock { 1536ea8dc4b6Seschrock spa_t *spa; 1537ea8dc4b6Seschrock int error; 1538e9dbad6fSeschrock size_t count = (size_t)zc->zc_nvlist_dst_size; 1539ea8dc4b6Seschrock 1540ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1541ea8dc4b6Seschrock return (error); 1542ea8dc4b6Seschrock 1543e9dbad6fSeschrock error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, 1544ea8dc4b6Seschrock &count); 1545ea8dc4b6Seschrock if (error == 0) 1546e9dbad6fSeschrock zc->zc_nvlist_dst_size = count; 1547ea8dc4b6Seschrock else 1548e9dbad6fSeschrock zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); 1549ea8dc4b6Seschrock 1550ea8dc4b6Seschrock spa_close(spa, FTAG); 1551ea8dc4b6Seschrock 1552ea8dc4b6Seschrock return (error); 1553ea8dc4b6Seschrock } 1554ea8dc4b6Seschrock 1555ea8dc4b6Seschrock static int 1556ea8dc4b6Seschrock zfs_ioc_clear(zfs_cmd_t *zc) 1557ea8dc4b6Seschrock { 1558ea8dc4b6Seschrock spa_t *spa; 1559ea8dc4b6Seschrock vdev_t *vd; 1560ea8dc4b6Seschrock int error; 1561ea8dc4b6Seschrock 1562ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1563ea8dc4b6Seschrock return (error); 1564ea8dc4b6Seschrock 1565ea8dc4b6Seschrock spa_config_enter(spa, RW_WRITER, FTAG); 1566ea8dc4b6Seschrock 1567e9dbad6fSeschrock if (zc->zc_guid == 0) { 1568ea8dc4b6Seschrock vd = NULL; 1569e9dbad6fSeschrock } else if ((vd = spa_lookup_by_guid(spa, zc->zc_guid)) == NULL) { 1570ea8dc4b6Seschrock spa_config_exit(spa, FTAG); 1571ea8dc4b6Seschrock spa_close(spa, FTAG); 1572ea8dc4b6Seschrock return (ENODEV); 1573ea8dc4b6Seschrock } 1574ea8dc4b6Seschrock 1575ea8dc4b6Seschrock vdev_clear(spa, vd); 1576ea8dc4b6Seschrock 1577ea8dc4b6Seschrock spa_config_exit(spa, FTAG); 1578ea8dc4b6Seschrock 1579ea8dc4b6Seschrock spa_close(spa, FTAG); 1580ea8dc4b6Seschrock 1581ea8dc4b6Seschrock return (0); 1582ea8dc4b6Seschrock } 1583ea8dc4b6Seschrock 158499653d4eSeschrock static int 158599653d4eSeschrock zfs_ioc_promote(zfs_cmd_t *zc) 158699653d4eSeschrock { 15870b69c2f0Sahrens char *cp; 15880b69c2f0Sahrens 15890b69c2f0Sahrens /* 15900b69c2f0Sahrens * We don't need to unmount *all* the origin fs's snapshots, but 15910b69c2f0Sahrens * it's easier. 15920b69c2f0Sahrens */ 1593e9dbad6fSeschrock cp = strchr(zc->zc_value, '@'); 15940b69c2f0Sahrens if (cp) 15950b69c2f0Sahrens *cp = '\0'; 1596e9dbad6fSeschrock (void) dmu_objset_find(zc->zc_value, 15970b69c2f0Sahrens zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); 159899653d4eSeschrock return (dsl_dataset_promote(zc->zc_name)); 159999653d4eSeschrock } 160099653d4eSeschrock 1601fa9e4066Sahrens static zfs_ioc_vec_t zfs_ioc_vec[] = { 1602fa9e4066Sahrens { zfs_ioc_pool_create, zfs_secpolicy_config, pool_name }, 1603fa9e4066Sahrens { zfs_ioc_pool_destroy, zfs_secpolicy_config, pool_name }, 1604fa9e4066Sahrens { zfs_ioc_pool_import, zfs_secpolicy_config, pool_name }, 1605fa9e4066Sahrens { zfs_ioc_pool_export, zfs_secpolicy_config, pool_name }, 1606fa9e4066Sahrens { zfs_ioc_pool_configs, zfs_secpolicy_none, no_name }, 1607fa9e4066Sahrens { zfs_ioc_pool_stats, zfs_secpolicy_read, pool_name }, 1608fa9e4066Sahrens { zfs_ioc_pool_tryimport, zfs_secpolicy_config, no_name }, 1609fa9e4066Sahrens { zfs_ioc_pool_scrub, zfs_secpolicy_config, pool_name }, 1610fa9e4066Sahrens { zfs_ioc_pool_freeze, zfs_secpolicy_config, no_name }, 1611eaca9bbdSeschrock { zfs_ioc_pool_upgrade, zfs_secpolicy_config, pool_name }, 161206eeb2adSek { zfs_ioc_pool_get_history, zfs_secpolicy_config, pool_name }, 161306eeb2adSek { zfs_ioc_pool_log_history, zfs_secpolicy_config, pool_name }, 1614fa9e4066Sahrens { zfs_ioc_vdev_add, zfs_secpolicy_config, pool_name }, 1615fa9e4066Sahrens { zfs_ioc_vdev_remove, zfs_secpolicy_config, pool_name }, 1616fa9e4066Sahrens { zfs_ioc_vdev_online, zfs_secpolicy_config, pool_name }, 1617fa9e4066Sahrens { zfs_ioc_vdev_offline, zfs_secpolicy_config, pool_name }, 1618fa9e4066Sahrens { zfs_ioc_vdev_attach, zfs_secpolicy_config, pool_name }, 1619fa9e4066Sahrens { zfs_ioc_vdev_detach, zfs_secpolicy_config, pool_name }, 1620c67d9675Seschrock { zfs_ioc_vdev_setpath, zfs_secpolicy_config, pool_name }, 1621fa9e4066Sahrens { zfs_ioc_objset_stats, zfs_secpolicy_read, dataset_name }, 1622fa9e4066Sahrens { zfs_ioc_dataset_list_next, zfs_secpolicy_read, dataset_name }, 1623fa9e4066Sahrens { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, dataset_name }, 1624e9dbad6fSeschrock { zfs_ioc_set_prop, zfs_secpolicy_write, dataset_name }, 1625fa9e4066Sahrens { zfs_ioc_create_minor, zfs_secpolicy_config, dataset_name }, 1626fa9e4066Sahrens { zfs_ioc_remove_minor, zfs_secpolicy_config, dataset_name }, 1627fa9e4066Sahrens { zfs_ioc_create, zfs_secpolicy_parent, dataset_name }, 1628fa9e4066Sahrens { zfs_ioc_destroy, zfs_secpolicy_parent, dataset_name }, 1629fa9e4066Sahrens { zfs_ioc_rollback, zfs_secpolicy_write, dataset_name }, 1630fa9e4066Sahrens { zfs_ioc_rename, zfs_secpolicy_write, dataset_name }, 1631fa9e4066Sahrens { zfs_ioc_recvbackup, zfs_secpolicy_write, dataset_name }, 1632fa9e4066Sahrens { zfs_ioc_sendbackup, zfs_secpolicy_write, dataset_name }, 1633ea8dc4b6Seschrock { zfs_ioc_inject_fault, zfs_secpolicy_inject, no_name }, 1634ea8dc4b6Seschrock { zfs_ioc_clear_fault, zfs_secpolicy_inject, no_name }, 1635ea8dc4b6Seschrock { zfs_ioc_inject_list_next, zfs_secpolicy_inject, no_name }, 1636ea8dc4b6Seschrock { zfs_ioc_error_log, zfs_secpolicy_inject, pool_name }, 1637ea8dc4b6Seschrock { zfs_ioc_clear, zfs_secpolicy_config, pool_name }, 16381d452cf5Sahrens { zfs_ioc_promote, zfs_secpolicy_write, dataset_name }, 16391d452cf5Sahrens { zfs_ioc_destroy_snaps, zfs_secpolicy_write, dataset_name }, 164055434c77Sek { zfs_ioc_snapshot, zfs_secpolicy_write, dataset_name }, 164155434c77Sek { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_config, pool_name }, 1642*b1b8ab34Slling { zfs_ioc_obj_to_path, zfs_secpolicy_config, no_name }, 1643*b1b8ab34Slling { zfs_ioc_pool_props_set, zfs_secpolicy_config, pool_name }, 1644*b1b8ab34Slling { zfs_ioc_pool_props_get, zfs_secpolicy_read, pool_name }, 1645fa9e4066Sahrens }; 1646fa9e4066Sahrens 1647fa9e4066Sahrens static int 1648fa9e4066Sahrens zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) 1649fa9e4066Sahrens { 1650fa9e4066Sahrens zfs_cmd_t *zc; 1651fa9e4066Sahrens uint_t vec; 16521d452cf5Sahrens int error, rc; 1653fa9e4066Sahrens 1654fa9e4066Sahrens if (getminor(dev) != 0) 1655fa9e4066Sahrens return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp)); 1656fa9e4066Sahrens 1657fa9e4066Sahrens vec = cmd - ZFS_IOC; 1658fa9e4066Sahrens 1659fa9e4066Sahrens if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) 1660fa9e4066Sahrens return (EINVAL); 1661fa9e4066Sahrens 1662fa9e4066Sahrens zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); 1663fa9e4066Sahrens 1664fa9e4066Sahrens error = xcopyin((void *)arg, zc, sizeof (zfs_cmd_t)); 1665fa9e4066Sahrens 1666fa9e4066Sahrens if (error == 0) { 1667fa9e4066Sahrens zc->zc_cred = (uintptr_t)cr; 1668fa9e4066Sahrens zc->zc_dev = dev; 1669e9dbad6fSeschrock error = zfs_ioc_vec[vec].zvec_secpolicy(zc->zc_name, cr); 1670fa9e4066Sahrens } 1671fa9e4066Sahrens 1672fa9e4066Sahrens /* 1673fa9e4066Sahrens * Ensure that all pool/dataset names are valid before we pass down to 1674fa9e4066Sahrens * the lower layers. 1675fa9e4066Sahrens */ 1676fa9e4066Sahrens if (error == 0) { 1677fa9e4066Sahrens zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 1678fa9e4066Sahrens switch (zfs_ioc_vec[vec].zvec_namecheck) { 1679fa9e4066Sahrens case pool_name: 1680fa9e4066Sahrens if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) 1681fa9e4066Sahrens error = EINVAL; 1682fa9e4066Sahrens break; 1683fa9e4066Sahrens 1684fa9e4066Sahrens case dataset_name: 1685fa9e4066Sahrens if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) 1686fa9e4066Sahrens error = EINVAL; 1687fa9e4066Sahrens break; 16885ad82045Snd 16895ad82045Snd case no_name: 16905ad82045Snd break; 1691fa9e4066Sahrens } 1692fa9e4066Sahrens } 1693fa9e4066Sahrens 1694fa9e4066Sahrens if (error == 0) 1695fa9e4066Sahrens error = zfs_ioc_vec[vec].zvec_func(zc); 1696fa9e4066Sahrens 16971d452cf5Sahrens rc = xcopyout(zc, (void *)arg, sizeof (zfs_cmd_t)); 16981d452cf5Sahrens if (error == 0) 16991d452cf5Sahrens error = rc; 1700fa9e4066Sahrens 1701fa9e4066Sahrens kmem_free(zc, sizeof (zfs_cmd_t)); 1702fa9e4066Sahrens return (error); 1703fa9e4066Sahrens } 1704fa9e4066Sahrens 1705fa9e4066Sahrens static int 1706fa9e4066Sahrens zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 1707fa9e4066Sahrens { 1708fa9e4066Sahrens if (cmd != DDI_ATTACH) 1709fa9e4066Sahrens return (DDI_FAILURE); 1710fa9e4066Sahrens 1711fa9e4066Sahrens if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, 1712fa9e4066Sahrens DDI_PSEUDO, 0) == DDI_FAILURE) 1713fa9e4066Sahrens return (DDI_FAILURE); 1714fa9e4066Sahrens 1715fa9e4066Sahrens zfs_dip = dip; 1716fa9e4066Sahrens 1717fa9e4066Sahrens ddi_report_dev(dip); 1718fa9e4066Sahrens 1719fa9e4066Sahrens return (DDI_SUCCESS); 1720fa9e4066Sahrens } 1721fa9e4066Sahrens 1722fa9e4066Sahrens static int 1723fa9e4066Sahrens zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 1724fa9e4066Sahrens { 1725fa9e4066Sahrens if (spa_busy() || zfs_busy() || zvol_busy()) 1726fa9e4066Sahrens return (DDI_FAILURE); 1727fa9e4066Sahrens 1728fa9e4066Sahrens if (cmd != DDI_DETACH) 1729fa9e4066Sahrens return (DDI_FAILURE); 1730fa9e4066Sahrens 1731fa9e4066Sahrens zfs_dip = NULL; 1732fa9e4066Sahrens 1733fa9e4066Sahrens ddi_prop_remove_all(dip); 1734fa9e4066Sahrens ddi_remove_minor_node(dip, NULL); 1735fa9e4066Sahrens 1736fa9e4066Sahrens return (DDI_SUCCESS); 1737fa9e4066Sahrens } 1738fa9e4066Sahrens 1739fa9e4066Sahrens /*ARGSUSED*/ 1740fa9e4066Sahrens static int 1741fa9e4066Sahrens zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 1742fa9e4066Sahrens { 1743fa9e4066Sahrens switch (infocmd) { 1744fa9e4066Sahrens case DDI_INFO_DEVT2DEVINFO: 1745fa9e4066Sahrens *result = zfs_dip; 1746fa9e4066Sahrens return (DDI_SUCCESS); 1747fa9e4066Sahrens 1748fa9e4066Sahrens case DDI_INFO_DEVT2INSTANCE: 1749a0965f35Sbonwick *result = (void *)0; 1750fa9e4066Sahrens return (DDI_SUCCESS); 1751fa9e4066Sahrens } 1752fa9e4066Sahrens 1753fa9e4066Sahrens return (DDI_FAILURE); 1754fa9e4066Sahrens } 1755fa9e4066Sahrens 1756fa9e4066Sahrens /* 1757fa9e4066Sahrens * OK, so this is a little weird. 1758fa9e4066Sahrens * 1759fa9e4066Sahrens * /dev/zfs is the control node, i.e. minor 0. 1760fa9e4066Sahrens * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. 1761fa9e4066Sahrens * 1762fa9e4066Sahrens * /dev/zfs has basically nothing to do except serve up ioctls, 1763fa9e4066Sahrens * so most of the standard driver entry points are in zvol.c. 1764fa9e4066Sahrens */ 1765fa9e4066Sahrens static struct cb_ops zfs_cb_ops = { 1766fa9e4066Sahrens zvol_open, /* open */ 1767fa9e4066Sahrens zvol_close, /* close */ 1768fa9e4066Sahrens zvol_strategy, /* strategy */ 1769fa9e4066Sahrens nodev, /* print */ 1770fa9e4066Sahrens nodev, /* dump */ 1771fa9e4066Sahrens zvol_read, /* read */ 1772fa9e4066Sahrens zvol_write, /* write */ 1773fa9e4066Sahrens zfsdev_ioctl, /* ioctl */ 1774fa9e4066Sahrens nodev, /* devmap */ 1775fa9e4066Sahrens nodev, /* mmap */ 1776fa9e4066Sahrens nodev, /* segmap */ 1777fa9e4066Sahrens nochpoll, /* poll */ 1778fa9e4066Sahrens ddi_prop_op, /* prop_op */ 1779fa9e4066Sahrens NULL, /* streamtab */ 1780fa9e4066Sahrens D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ 1781fa9e4066Sahrens CB_REV, /* version */ 1782feb08c6bSbillm nodev, /* async read */ 1783feb08c6bSbillm nodev, /* async write */ 1784fa9e4066Sahrens }; 1785fa9e4066Sahrens 1786fa9e4066Sahrens static struct dev_ops zfs_dev_ops = { 1787fa9e4066Sahrens DEVO_REV, /* version */ 1788fa9e4066Sahrens 0, /* refcnt */ 1789fa9e4066Sahrens zfs_info, /* info */ 1790fa9e4066Sahrens nulldev, /* identify */ 1791fa9e4066Sahrens nulldev, /* probe */ 1792fa9e4066Sahrens zfs_attach, /* attach */ 1793fa9e4066Sahrens zfs_detach, /* detach */ 1794fa9e4066Sahrens nodev, /* reset */ 1795fa9e4066Sahrens &zfs_cb_ops, /* driver operations */ 1796fa9e4066Sahrens NULL /* no bus operations */ 1797fa9e4066Sahrens }; 1798fa9e4066Sahrens 1799fa9e4066Sahrens static struct modldrv zfs_modldrv = { 1800e9dbad6fSeschrock &mod_driverops, "ZFS storage pool version " ZFS_VERSION_STRING, 1801e9dbad6fSeschrock &zfs_dev_ops 1802fa9e4066Sahrens }; 1803fa9e4066Sahrens 1804fa9e4066Sahrens static struct modlinkage modlinkage = { 1805fa9e4066Sahrens MODREV_1, 1806fa9e4066Sahrens (void *)&zfs_modlfs, 1807fa9e4066Sahrens (void *)&zfs_modldrv, 1808fa9e4066Sahrens NULL 1809fa9e4066Sahrens }; 1810fa9e4066Sahrens 1811fa9e4066Sahrens int 1812fa9e4066Sahrens _init(void) 1813fa9e4066Sahrens { 1814fa9e4066Sahrens int error; 1815fa9e4066Sahrens 1816a0965f35Sbonwick spa_init(FREAD | FWRITE); 1817a0965f35Sbonwick zfs_init(); 1818a0965f35Sbonwick zvol_init(); 1819a0965f35Sbonwick 1820a0965f35Sbonwick if ((error = mod_install(&modlinkage)) != 0) { 1821a0965f35Sbonwick zvol_fini(); 1822a0965f35Sbonwick zfs_fini(); 1823a0965f35Sbonwick spa_fini(); 1824fa9e4066Sahrens return (error); 1825a0965f35Sbonwick } 1826fa9e4066Sahrens 1827fa9e4066Sahrens error = ldi_ident_from_mod(&modlinkage, &zfs_li); 1828fa9e4066Sahrens ASSERT(error == 0); 1829fa9e4066Sahrens 1830fa9e4066Sahrens return (0); 1831fa9e4066Sahrens } 1832fa9e4066Sahrens 1833fa9e4066Sahrens int 1834fa9e4066Sahrens _fini(void) 1835fa9e4066Sahrens { 1836fa9e4066Sahrens int error; 1837fa9e4066Sahrens 1838ea8dc4b6Seschrock if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) 1839fa9e4066Sahrens return (EBUSY); 1840fa9e4066Sahrens 1841fa9e4066Sahrens if ((error = mod_remove(&modlinkage)) != 0) 1842fa9e4066Sahrens return (error); 1843fa9e4066Sahrens 1844fa9e4066Sahrens zvol_fini(); 1845fa9e4066Sahrens zfs_fini(); 1846fa9e4066Sahrens spa_fini(); 1847fa9e4066Sahrens 1848fa9e4066Sahrens ldi_ident_release(zfs_li); 1849fa9e4066Sahrens zfs_li = NULL; 1850fa9e4066Sahrens 1851fa9e4066Sahrens return (error); 1852fa9e4066Sahrens } 1853fa9e4066Sahrens 1854fa9e4066Sahrens int 1855fa9e4066Sahrens _info(struct modinfo *modinfop) 1856fa9e4066Sahrens { 1857fa9e4066Sahrens return (mod_info(&modlinkage, modinfop)); 1858fa9e4066Sahrens } 1859