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> 59fa9e4066Sahrens 60fa9e4066Sahrens #include "zfs_namecheck.h" 61*e9dbad6fSeschrock #include "zfs_prop.h" 62fa9e4066Sahrens 63fa9e4066Sahrens extern struct modlfs zfs_modlfs; 64fa9e4066Sahrens 65fa9e4066Sahrens extern void zfs_init(void); 66fa9e4066Sahrens extern void zfs_fini(void); 67fa9e4066Sahrens 68fa9e4066Sahrens ldi_ident_t zfs_li = NULL; 69fa9e4066Sahrens dev_info_t *zfs_dip; 70fa9e4066Sahrens 71fa9e4066Sahrens typedef int zfs_ioc_func_t(zfs_cmd_t *); 72*e9dbad6fSeschrock typedef int zfs_secpolicy_func_t(const char *, cred_t *); 73fa9e4066Sahrens 74fa9e4066Sahrens typedef struct zfs_ioc_vec { 75fa9e4066Sahrens zfs_ioc_func_t *zvec_func; 76fa9e4066Sahrens zfs_secpolicy_func_t *zvec_secpolicy; 77fa9e4066Sahrens enum { 78fa9e4066Sahrens no_name, 79fa9e4066Sahrens pool_name, 80fa9e4066Sahrens dataset_name 81fa9e4066Sahrens } zvec_namecheck; 82fa9e4066Sahrens } zfs_ioc_vec_t; 83fa9e4066Sahrens 84fa9e4066Sahrens /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ 85fa9e4066Sahrens void 86fa9e4066Sahrens __dprintf(const char *file, const char *func, int line, const char *fmt, ...) 87fa9e4066Sahrens { 88fa9e4066Sahrens const char *newfile; 89fa9e4066Sahrens char buf[256]; 90fa9e4066Sahrens va_list adx; 91fa9e4066Sahrens 92fa9e4066Sahrens /* 93fa9e4066Sahrens * Get rid of annoying "../common/" prefix to filename. 94fa9e4066Sahrens */ 95fa9e4066Sahrens newfile = strrchr(file, '/'); 96fa9e4066Sahrens if (newfile != NULL) { 97fa9e4066Sahrens newfile = newfile + 1; /* Get rid of leading / */ 98fa9e4066Sahrens } else { 99fa9e4066Sahrens newfile = file; 100fa9e4066Sahrens } 101fa9e4066Sahrens 102fa9e4066Sahrens va_start(adx, fmt); 103fa9e4066Sahrens (void) vsnprintf(buf, sizeof (buf), fmt, adx); 104fa9e4066Sahrens va_end(adx); 105fa9e4066Sahrens 106fa9e4066Sahrens /* 107fa9e4066Sahrens * To get this data, use the zfs-dprintf probe as so: 108fa9e4066Sahrens * dtrace -q -n 'zfs-dprintf \ 109fa9e4066Sahrens * /stringof(arg0) == "dbuf.c"/ \ 110fa9e4066Sahrens * {printf("%s: %s", stringof(arg1), stringof(arg3))}' 111fa9e4066Sahrens * arg0 = file name 112fa9e4066Sahrens * arg1 = function name 113fa9e4066Sahrens * arg2 = line number 114fa9e4066Sahrens * arg3 = message 115fa9e4066Sahrens */ 116fa9e4066Sahrens DTRACE_PROBE4(zfs__dprintf, 117fa9e4066Sahrens char *, newfile, char *, func, int, line, char *, buf); 118fa9e4066Sahrens } 119fa9e4066Sahrens 120fa9e4066Sahrens /* 121fa9e4066Sahrens * Policy for top-level read operations (list pools). Requires no privileges, 122fa9e4066Sahrens * and can be used in the local zone, as there is no associated dataset. 123fa9e4066Sahrens */ 124fa9e4066Sahrens /* ARGSUSED */ 125fa9e4066Sahrens static int 126*e9dbad6fSeschrock zfs_secpolicy_none(const char *unused1, cred_t *cr) 127fa9e4066Sahrens { 128fa9e4066Sahrens return (0); 129fa9e4066Sahrens } 130fa9e4066Sahrens 131fa9e4066Sahrens /* 132fa9e4066Sahrens * Policy for dataset read operations (list children, get statistics). Requires 133fa9e4066Sahrens * no privileges, but must be visible in the local zone. 134fa9e4066Sahrens */ 135fa9e4066Sahrens /* ARGSUSED */ 136fa9e4066Sahrens static int 137*e9dbad6fSeschrock zfs_secpolicy_read(const char *dataset, cred_t *cr) 138fa9e4066Sahrens { 139fa9e4066Sahrens if (INGLOBALZONE(curproc) || 140fa9e4066Sahrens zone_dataset_visible(dataset, NULL)) 141fa9e4066Sahrens return (0); 142fa9e4066Sahrens 143fa9e4066Sahrens return (ENOENT); 144fa9e4066Sahrens } 145fa9e4066Sahrens 146fa9e4066Sahrens static int 147fa9e4066Sahrens zfs_dozonecheck(const char *dataset, cred_t *cr) 148fa9e4066Sahrens { 149fa9e4066Sahrens uint64_t zoned; 150fa9e4066Sahrens int writable = 1; 151fa9e4066Sahrens 152fa9e4066Sahrens /* 153fa9e4066Sahrens * The dataset must be visible by this zone -- check this first 154fa9e4066Sahrens * so they don't see EPERM on something they shouldn't know about. 155fa9e4066Sahrens */ 156fa9e4066Sahrens if (!INGLOBALZONE(curproc) && 157fa9e4066Sahrens !zone_dataset_visible(dataset, &writable)) 158fa9e4066Sahrens return (ENOENT); 159fa9e4066Sahrens 160fa9e4066Sahrens if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) 161fa9e4066Sahrens return (ENOENT); 162fa9e4066Sahrens 163fa9e4066Sahrens if (INGLOBALZONE(curproc)) { 164fa9e4066Sahrens /* 165fa9e4066Sahrens * If the fs is zoned, only root can access it from the 166fa9e4066Sahrens * global zone. 167fa9e4066Sahrens */ 168fa9e4066Sahrens if (secpolicy_zfs(cr) && zoned) 169fa9e4066Sahrens return (EPERM); 170fa9e4066Sahrens } else { 171fa9e4066Sahrens /* 172fa9e4066Sahrens * If we are in a local zone, the 'zoned' property must be set. 173fa9e4066Sahrens */ 174fa9e4066Sahrens if (!zoned) 175fa9e4066Sahrens return (EPERM); 176fa9e4066Sahrens 177fa9e4066Sahrens /* must be writable by this zone */ 178fa9e4066Sahrens if (!writable) 179fa9e4066Sahrens return (EPERM); 180fa9e4066Sahrens } 181fa9e4066Sahrens return (0); 182fa9e4066Sahrens } 183fa9e4066Sahrens 184fa9e4066Sahrens /* 185fa9e4066Sahrens * Policy for dataset write operations (create children, set properties, etc). 186fa9e4066Sahrens * Requires SYS_MOUNT privilege, and must be writable in the local zone. 187fa9e4066Sahrens */ 188fa9e4066Sahrens int 189*e9dbad6fSeschrock zfs_secpolicy_write(const char *dataset, cred_t *cr) 190fa9e4066Sahrens { 191fa9e4066Sahrens int error; 192fa9e4066Sahrens 193fa9e4066Sahrens if (error = zfs_dozonecheck(dataset, cr)) 194fa9e4066Sahrens return (error); 195fa9e4066Sahrens 196fa9e4066Sahrens return (secpolicy_zfs(cr)); 197fa9e4066Sahrens } 198fa9e4066Sahrens 199fa9e4066Sahrens /* 200fa9e4066Sahrens * Policy for operations that want to write a dataset's parent: 201fa9e4066Sahrens * create, destroy, snapshot, clone, restore. 202fa9e4066Sahrens */ 203fa9e4066Sahrens static int 204*e9dbad6fSeschrock zfs_secpolicy_parent(const char *dataset, cred_t *cr) 205fa9e4066Sahrens { 206fa9e4066Sahrens char parentname[MAXNAMELEN]; 207fa9e4066Sahrens char *cp; 208fa9e4066Sahrens 209fa9e4066Sahrens /* 210fa9e4066Sahrens * Remove the @bla or /bla from the end of the name to get the parent. 211fa9e4066Sahrens */ 212fa9e4066Sahrens (void) strncpy(parentname, dataset, sizeof (parentname)); 213fa9e4066Sahrens cp = strrchr(parentname, '@'); 214fa9e4066Sahrens if (cp != NULL) { 215fa9e4066Sahrens cp[0] = '\0'; 216fa9e4066Sahrens } else { 217fa9e4066Sahrens cp = strrchr(parentname, '/'); 218fa9e4066Sahrens if (cp == NULL) 219fa9e4066Sahrens return (ENOENT); 220fa9e4066Sahrens cp[0] = '\0'; 221fa9e4066Sahrens 222fa9e4066Sahrens } 223fa9e4066Sahrens 224*e9dbad6fSeschrock return (zfs_secpolicy_write(parentname, cr)); 225fa9e4066Sahrens } 226fa9e4066Sahrens 227fa9e4066Sahrens /* 228fa9e4066Sahrens * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires 229fa9e4066Sahrens * SYS_CONFIG privilege, which is not available in a local zone. 230fa9e4066Sahrens */ 231fa9e4066Sahrens /* ARGSUSED */ 232fa9e4066Sahrens static int 233*e9dbad6fSeschrock zfs_secpolicy_config(const char *unused, cred_t *cr) 234fa9e4066Sahrens { 235fa9e4066Sahrens if (secpolicy_sys_config(cr, B_FALSE) != 0) 236fa9e4066Sahrens return (EPERM); 237fa9e4066Sahrens 238fa9e4066Sahrens return (0); 239fa9e4066Sahrens } 240fa9e4066Sahrens 241ea8dc4b6Seschrock /* 242ea8dc4b6Seschrock * Policy for fault injection. Requires all privileges. 243ea8dc4b6Seschrock */ 244ea8dc4b6Seschrock /* ARGSUSED */ 245ea8dc4b6Seschrock static int 246*e9dbad6fSeschrock zfs_secpolicy_inject(const char *unused, cred_t *cr) 247ea8dc4b6Seschrock { 248ea8dc4b6Seschrock return (secpolicy_zinject(cr)); 249ea8dc4b6Seschrock } 250ea8dc4b6Seschrock 251fa9e4066Sahrens /* 252fa9e4066Sahrens * Returns the nvlist as specified by the user in the zfs_cmd_t. 253fa9e4066Sahrens */ 254fa9e4066Sahrens static int 255*e9dbad6fSeschrock get_nvlist(zfs_cmd_t *zc, nvlist_t **nvp) 256fa9e4066Sahrens { 257fa9e4066Sahrens char *packed; 258fa9e4066Sahrens size_t size; 259fa9e4066Sahrens int error; 260fa9e4066Sahrens nvlist_t *config = NULL; 261fa9e4066Sahrens 262fa9e4066Sahrens /* 263*e9dbad6fSeschrock * Read in and unpack the user-supplied nvlist. 264fa9e4066Sahrens */ 265*e9dbad6fSeschrock if ((size = zc->zc_nvlist_src_size) == 0) 266fa9e4066Sahrens return (EINVAL); 267fa9e4066Sahrens 268fa9e4066Sahrens packed = kmem_alloc(size, KM_SLEEP); 269fa9e4066Sahrens 270*e9dbad6fSeschrock if ((error = xcopyin((void *)(uintptr_t)zc->zc_nvlist_src, packed, 271fa9e4066Sahrens size)) != 0) { 272fa9e4066Sahrens kmem_free(packed, size); 273fa9e4066Sahrens return (error); 274fa9e4066Sahrens } 275fa9e4066Sahrens 276fa9e4066Sahrens if ((error = nvlist_unpack(packed, size, &config, 0)) != 0) { 277fa9e4066Sahrens kmem_free(packed, size); 278fa9e4066Sahrens return (error); 279fa9e4066Sahrens } 280fa9e4066Sahrens 281fa9e4066Sahrens kmem_free(packed, size); 282fa9e4066Sahrens 283fa9e4066Sahrens *nvp = config; 284fa9e4066Sahrens return (0); 285fa9e4066Sahrens } 286fa9e4066Sahrens 287*e9dbad6fSeschrock static int 288*e9dbad6fSeschrock put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) 289*e9dbad6fSeschrock { 290*e9dbad6fSeschrock char *packed = NULL; 291*e9dbad6fSeschrock size_t size; 292*e9dbad6fSeschrock int error; 293*e9dbad6fSeschrock 294*e9dbad6fSeschrock VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); 295*e9dbad6fSeschrock 296*e9dbad6fSeschrock if (size > zc->zc_nvlist_dst_size) { 297*e9dbad6fSeschrock error = ENOMEM; 298*e9dbad6fSeschrock } else { 299*e9dbad6fSeschrock VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, 300*e9dbad6fSeschrock KM_SLEEP) == 0); 301*e9dbad6fSeschrock error = xcopyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, 302*e9dbad6fSeschrock size); 303*e9dbad6fSeschrock kmem_free(packed, size); 304*e9dbad6fSeschrock } 305*e9dbad6fSeschrock 306*e9dbad6fSeschrock zc->zc_nvlist_dst_size = size; 307*e9dbad6fSeschrock return (error); 308*e9dbad6fSeschrock } 309*e9dbad6fSeschrock 310fa9e4066Sahrens static int 311fa9e4066Sahrens zfs_ioc_pool_create(zfs_cmd_t *zc) 312fa9e4066Sahrens { 313fa9e4066Sahrens int error; 314fa9e4066Sahrens nvlist_t *config; 315fa9e4066Sahrens 316*e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) != 0) 317fa9e4066Sahrens return (error); 318fa9e4066Sahrens 319*e9dbad6fSeschrock error = spa_create(zc->zc_name, config, zc->zc_value[0] == '\0' ? 320*e9dbad6fSeschrock NULL : zc->zc_value); 321fa9e4066Sahrens 322fa9e4066Sahrens nvlist_free(config); 323fa9e4066Sahrens 324fa9e4066Sahrens return (error); 325fa9e4066Sahrens } 326fa9e4066Sahrens 327fa9e4066Sahrens static int 328fa9e4066Sahrens zfs_ioc_pool_destroy(zfs_cmd_t *zc) 329fa9e4066Sahrens { 330fa9e4066Sahrens return (spa_destroy(zc->zc_name)); 331fa9e4066Sahrens } 332fa9e4066Sahrens 333fa9e4066Sahrens static int 334fa9e4066Sahrens zfs_ioc_pool_import(zfs_cmd_t *zc) 335fa9e4066Sahrens { 336fa9e4066Sahrens int error; 337fa9e4066Sahrens nvlist_t *config; 338fa9e4066Sahrens uint64_t guid; 339fa9e4066Sahrens 340*e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) != 0) 341fa9e4066Sahrens return (error); 342fa9e4066Sahrens 343fa9e4066Sahrens if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || 344ea8dc4b6Seschrock guid != zc->zc_guid) 345fa9e4066Sahrens error = EINVAL; 346fa9e4066Sahrens else 347fa9e4066Sahrens error = spa_import(zc->zc_name, config, 348*e9dbad6fSeschrock zc->zc_value[0] == '\0' ? NULL : zc->zc_value); 349fa9e4066Sahrens 350fa9e4066Sahrens nvlist_free(config); 351fa9e4066Sahrens 352fa9e4066Sahrens return (error); 353fa9e4066Sahrens } 354fa9e4066Sahrens 355fa9e4066Sahrens static int 356fa9e4066Sahrens zfs_ioc_pool_export(zfs_cmd_t *zc) 357fa9e4066Sahrens { 35844cd46caSbillm return (spa_export(zc->zc_name, NULL)); 359fa9e4066Sahrens } 360fa9e4066Sahrens 361fa9e4066Sahrens static int 362fa9e4066Sahrens zfs_ioc_pool_configs(zfs_cmd_t *zc) 363fa9e4066Sahrens { 364fa9e4066Sahrens nvlist_t *configs; 365fa9e4066Sahrens int error; 366fa9e4066Sahrens 367fa9e4066Sahrens if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) 368fa9e4066Sahrens return (EEXIST); 369fa9e4066Sahrens 370*e9dbad6fSeschrock error = put_nvlist(zc, configs); 371fa9e4066Sahrens 372fa9e4066Sahrens nvlist_free(configs); 373fa9e4066Sahrens 374fa9e4066Sahrens return (error); 375fa9e4066Sahrens } 376fa9e4066Sahrens 377fa9e4066Sahrens static int 378fa9e4066Sahrens zfs_ioc_pool_stats(zfs_cmd_t *zc) 379fa9e4066Sahrens { 380fa9e4066Sahrens nvlist_t *config; 381fa9e4066Sahrens int error; 382ea8dc4b6Seschrock int ret = 0; 383fa9e4066Sahrens 384*e9dbad6fSeschrock error = spa_get_stats(zc->zc_name, &config, zc->zc_value, 385*e9dbad6fSeschrock sizeof (zc->zc_value)); 386fa9e4066Sahrens 387fa9e4066Sahrens if (config != NULL) { 388*e9dbad6fSeschrock ret = put_nvlist(zc, config); 389fa9e4066Sahrens nvlist_free(config); 390ea8dc4b6Seschrock 391ea8dc4b6Seschrock /* 392ea8dc4b6Seschrock * The config may be present even if 'error' is non-zero. 393ea8dc4b6Seschrock * In this case we return success, and preserve the real errno 394ea8dc4b6Seschrock * in 'zc_cookie'. 395ea8dc4b6Seschrock */ 396ea8dc4b6Seschrock zc->zc_cookie = error; 397fa9e4066Sahrens } else { 398ea8dc4b6Seschrock ret = error; 399fa9e4066Sahrens } 400fa9e4066Sahrens 401ea8dc4b6Seschrock return (ret); 402fa9e4066Sahrens } 403fa9e4066Sahrens 404fa9e4066Sahrens /* 405fa9e4066Sahrens * Try to import the given pool, returning pool stats as appropriate so that 406fa9e4066Sahrens * user land knows which devices are available and overall pool health. 407fa9e4066Sahrens */ 408fa9e4066Sahrens static int 409fa9e4066Sahrens zfs_ioc_pool_tryimport(zfs_cmd_t *zc) 410fa9e4066Sahrens { 411fa9e4066Sahrens nvlist_t *tryconfig, *config; 412fa9e4066Sahrens int error; 413fa9e4066Sahrens 414*e9dbad6fSeschrock if ((error = get_nvlist(zc, &tryconfig)) != 0) 415fa9e4066Sahrens return (error); 416fa9e4066Sahrens 417fa9e4066Sahrens config = spa_tryimport(tryconfig); 418fa9e4066Sahrens 419fa9e4066Sahrens nvlist_free(tryconfig); 420fa9e4066Sahrens 421fa9e4066Sahrens if (config == NULL) 422fa9e4066Sahrens return (EINVAL); 423fa9e4066Sahrens 424*e9dbad6fSeschrock error = put_nvlist(zc, config); 425fa9e4066Sahrens nvlist_free(config); 426fa9e4066Sahrens 427fa9e4066Sahrens return (error); 428fa9e4066Sahrens } 429fa9e4066Sahrens 430fa9e4066Sahrens static int 431fa9e4066Sahrens zfs_ioc_pool_scrub(zfs_cmd_t *zc) 432fa9e4066Sahrens { 433fa9e4066Sahrens spa_t *spa; 434fa9e4066Sahrens int error; 435fa9e4066Sahrens 436fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 437fa9e4066Sahrens if (error == 0) { 438fa9e4066Sahrens error = spa_scrub(spa, zc->zc_cookie, B_FALSE); 439fa9e4066Sahrens spa_close(spa, FTAG); 440fa9e4066Sahrens } 441fa9e4066Sahrens return (error); 442fa9e4066Sahrens } 443fa9e4066Sahrens 444fa9e4066Sahrens static int 445fa9e4066Sahrens zfs_ioc_pool_freeze(zfs_cmd_t *zc) 446fa9e4066Sahrens { 447fa9e4066Sahrens spa_t *spa; 448fa9e4066Sahrens int error; 449fa9e4066Sahrens 450fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 451fa9e4066Sahrens if (error == 0) { 452fa9e4066Sahrens spa_freeze(spa); 453fa9e4066Sahrens spa_close(spa, FTAG); 454fa9e4066Sahrens } 455fa9e4066Sahrens return (error); 456fa9e4066Sahrens } 457fa9e4066Sahrens 458eaca9bbdSeschrock static int 459eaca9bbdSeschrock zfs_ioc_pool_upgrade(zfs_cmd_t *zc) 460eaca9bbdSeschrock { 461eaca9bbdSeschrock spa_t *spa; 462eaca9bbdSeschrock int error; 463eaca9bbdSeschrock 464eaca9bbdSeschrock error = spa_open(zc->zc_name, &spa, FTAG); 465eaca9bbdSeschrock if (error == 0) { 466eaca9bbdSeschrock spa_upgrade(spa); 467eaca9bbdSeschrock spa_close(spa, FTAG); 468eaca9bbdSeschrock } 469eaca9bbdSeschrock return (error); 470eaca9bbdSeschrock } 471eaca9bbdSeschrock 472fa9e4066Sahrens static int 473fa9e4066Sahrens zfs_ioc_vdev_add(zfs_cmd_t *zc) 474fa9e4066Sahrens { 475fa9e4066Sahrens spa_t *spa; 476fa9e4066Sahrens int error; 477fa9e4066Sahrens nvlist_t *config; 478fa9e4066Sahrens 479fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 480fa9e4066Sahrens if (error != 0) 481fa9e4066Sahrens return (error); 482fa9e4066Sahrens 483*e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) == 0) { 484fa9e4066Sahrens error = spa_vdev_add(spa, config); 485fa9e4066Sahrens nvlist_free(config); 486fa9e4066Sahrens } 487fa9e4066Sahrens 488fa9e4066Sahrens spa_close(spa, FTAG); 489fa9e4066Sahrens return (error); 490fa9e4066Sahrens } 491fa9e4066Sahrens 492fa9e4066Sahrens static int 493fa9e4066Sahrens zfs_ioc_vdev_remove(zfs_cmd_t *zc) 494fa9e4066Sahrens { 49599653d4eSeschrock spa_t *spa; 49699653d4eSeschrock int error; 49799653d4eSeschrock 49899653d4eSeschrock error = spa_open(zc->zc_name, &spa, FTAG); 49999653d4eSeschrock if (error != 0) 50099653d4eSeschrock return (error); 50199653d4eSeschrock error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); 50299653d4eSeschrock spa_close(spa, FTAG); 50399653d4eSeschrock return (error); 504fa9e4066Sahrens } 505fa9e4066Sahrens 506fa9e4066Sahrens static int 507fa9e4066Sahrens zfs_ioc_vdev_online(zfs_cmd_t *zc) 508fa9e4066Sahrens { 509fa9e4066Sahrens spa_t *spa; 510fa9e4066Sahrens int error; 511fa9e4066Sahrens 512fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 513fa9e4066Sahrens if (error != 0) 514fa9e4066Sahrens return (error); 515ea8dc4b6Seschrock error = vdev_online(spa, zc->zc_guid); 516fa9e4066Sahrens spa_close(spa, FTAG); 517fa9e4066Sahrens return (error); 518fa9e4066Sahrens } 519fa9e4066Sahrens 520fa9e4066Sahrens static int 521fa9e4066Sahrens zfs_ioc_vdev_offline(zfs_cmd_t *zc) 522fa9e4066Sahrens { 523fa9e4066Sahrens spa_t *spa; 524441d80aaSlling int istmp = zc->zc_cookie; 525fa9e4066Sahrens int error; 526fa9e4066Sahrens 527fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 528fa9e4066Sahrens if (error != 0) 529fa9e4066Sahrens return (error); 530ea8dc4b6Seschrock error = vdev_offline(spa, zc->zc_guid, istmp); 531fa9e4066Sahrens spa_close(spa, FTAG); 532fa9e4066Sahrens return (error); 533fa9e4066Sahrens } 534fa9e4066Sahrens 535fa9e4066Sahrens static int 536fa9e4066Sahrens zfs_ioc_vdev_attach(zfs_cmd_t *zc) 537fa9e4066Sahrens { 538fa9e4066Sahrens spa_t *spa; 539fa9e4066Sahrens int replacing = zc->zc_cookie; 540fa9e4066Sahrens nvlist_t *config; 541fa9e4066Sahrens int error; 542fa9e4066Sahrens 543fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 544fa9e4066Sahrens if (error != 0) 545fa9e4066Sahrens return (error); 546fa9e4066Sahrens 547*e9dbad6fSeschrock if ((error = get_nvlist(zc, &config)) == 0) { 548ea8dc4b6Seschrock error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); 549fa9e4066Sahrens nvlist_free(config); 550fa9e4066Sahrens } 551fa9e4066Sahrens 552fa9e4066Sahrens spa_close(spa, FTAG); 553fa9e4066Sahrens return (error); 554fa9e4066Sahrens } 555fa9e4066Sahrens 556fa9e4066Sahrens static int 557fa9e4066Sahrens zfs_ioc_vdev_detach(zfs_cmd_t *zc) 558fa9e4066Sahrens { 559fa9e4066Sahrens spa_t *spa; 560fa9e4066Sahrens int error; 561fa9e4066Sahrens 562fa9e4066Sahrens error = spa_open(zc->zc_name, &spa, FTAG); 563fa9e4066Sahrens if (error != 0) 564fa9e4066Sahrens return (error); 565fa9e4066Sahrens 566ea8dc4b6Seschrock error = spa_vdev_detach(spa, zc->zc_guid, B_FALSE); 567fa9e4066Sahrens 568fa9e4066Sahrens spa_close(spa, FTAG); 569fa9e4066Sahrens return (error); 570fa9e4066Sahrens } 571fa9e4066Sahrens 572c67d9675Seschrock static int 573c67d9675Seschrock zfs_ioc_vdev_setpath(zfs_cmd_t *zc) 574c67d9675Seschrock { 575c67d9675Seschrock spa_t *spa; 576*e9dbad6fSeschrock char *path = zc->zc_value; 577ea8dc4b6Seschrock uint64_t guid = zc->zc_guid; 578c67d9675Seschrock int error; 579c67d9675Seschrock 580c67d9675Seschrock error = spa_open(zc->zc_name, &spa, FTAG); 581c67d9675Seschrock if (error != 0) 582c67d9675Seschrock return (error); 583c67d9675Seschrock 584c67d9675Seschrock error = spa_vdev_setpath(spa, guid, path); 585c67d9675Seschrock 586c67d9675Seschrock spa_close(spa, FTAG); 587c67d9675Seschrock return (error); 588c67d9675Seschrock } 589c67d9675Seschrock 590fa9e4066Sahrens static int 591fa9e4066Sahrens zfs_ioc_objset_stats(zfs_cmd_t *zc) 592fa9e4066Sahrens { 593fa9e4066Sahrens objset_t *os = NULL; 594fa9e4066Sahrens int error; 5957f7322feSeschrock nvlist_t *nv; 596fa9e4066Sahrens 597fa9e4066Sahrens retry: 598fa9e4066Sahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 599fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 600fa9e4066Sahrens if (error != 0) { 601fa9e4066Sahrens /* 602fa9e4066Sahrens * This is ugly: dmu_objset_open() can return EBUSY if 603fa9e4066Sahrens * the objset is held exclusively. Fortunately this hold is 604fa9e4066Sahrens * only for a short while, so we retry here. 605fa9e4066Sahrens * This avoids user code having to handle EBUSY, 606fa9e4066Sahrens * for example for a "zfs list". 607fa9e4066Sahrens */ 608fa9e4066Sahrens if (error == EBUSY) { 609fa9e4066Sahrens delay(1); 610fa9e4066Sahrens goto retry; 611fa9e4066Sahrens } 612fa9e4066Sahrens return (error); 613fa9e4066Sahrens } 614fa9e4066Sahrens 615fa9e4066Sahrens dmu_objset_stats(os, &zc->zc_objset_stats); 616fa9e4066Sahrens 617*e9dbad6fSeschrock if (zc->zc_nvlist_dst != NULL && 6187f7322feSeschrock (error = dsl_prop_get_all(os, &nv)) == 0) { 619*e9dbad6fSeschrock error = put_nvlist(zc, nv); 6207f7322feSeschrock nvlist_free(nv); 6217f7322feSeschrock } 622fa9e4066Sahrens 6237f7322feSeschrock if (!error && zc->zc_objset_stats.dds_type == DMU_OST_ZVOL) 624*e9dbad6fSeschrock error = zvol_get_stats(os, &zc->zc_vol_stats); 625fa9e4066Sahrens 626*e9dbad6fSeschrock spa_altroot(dmu_objset_spa(os), zc->zc_value, sizeof (zc->zc_value)); 627ea8dc4b6Seschrock 628fa9e4066Sahrens dmu_objset_close(os); 629fa9e4066Sahrens return (error); 630fa9e4066Sahrens } 631fa9e4066Sahrens 632fa9e4066Sahrens static int 633fa9e4066Sahrens zfs_ioc_dataset_list_next(zfs_cmd_t *zc) 634fa9e4066Sahrens { 63587e5029aSahrens objset_t *os; 636fa9e4066Sahrens int error; 637fa9e4066Sahrens char *p; 638fa9e4066Sahrens 63987e5029aSahrens retry: 64087e5029aSahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 64187e5029aSahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 64287e5029aSahrens if (error != 0) { 64387e5029aSahrens /* 64487e5029aSahrens * This is ugly: dmu_objset_open() can return EBUSY if 64587e5029aSahrens * the objset is held exclusively. Fortunately this hold is 64687e5029aSahrens * only for a short while, so we retry here. 64787e5029aSahrens * This avoids user code having to handle EBUSY, 64887e5029aSahrens * for example for a "zfs list". 64987e5029aSahrens */ 65087e5029aSahrens if (error == EBUSY) { 65187e5029aSahrens delay(1); 65287e5029aSahrens goto retry; 65387e5029aSahrens } 65487e5029aSahrens if (error == ENOENT) 65587e5029aSahrens error = ESRCH; 65687e5029aSahrens return (error); 657fa9e4066Sahrens } 658fa9e4066Sahrens 659fa9e4066Sahrens p = strrchr(zc->zc_name, '/'); 660fa9e4066Sahrens if (p == NULL || p[1] != '\0') 661fa9e4066Sahrens (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); 662fa9e4066Sahrens p = zc->zc_name + strlen(zc->zc_name); 663fa9e4066Sahrens 664fa9e4066Sahrens do { 66587e5029aSahrens error = dmu_dir_list_next(os, 66687e5029aSahrens sizeof (zc->zc_name) - (p - zc->zc_name), p, 66787e5029aSahrens NULL, &zc->zc_cookie); 668fa9e4066Sahrens if (error == ENOENT) 669fa9e4066Sahrens error = ESRCH; 67087e5029aSahrens } while (error == 0 && !INGLOBALZONE(curproc) && 671fa9e4066Sahrens !zone_dataset_visible(zc->zc_name, NULL)); 672fa9e4066Sahrens 673fa9e4066Sahrens /* 67487e5029aSahrens * If it's a hidden dataset (ie. with a '$' in its name), don't 67587e5029aSahrens * try to get stats for it. Userland will skip over it. 676fa9e4066Sahrens */ 67787e5029aSahrens if (error == 0 && strchr(zc->zc_name, '$') == NULL) 67887e5029aSahrens error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 679fa9e4066Sahrens 68087e5029aSahrens dmu_objset_close(os); 681fa9e4066Sahrens return (error); 682fa9e4066Sahrens } 683fa9e4066Sahrens 684fa9e4066Sahrens static int 685fa9e4066Sahrens zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) 686fa9e4066Sahrens { 68787e5029aSahrens objset_t *os; 688fa9e4066Sahrens int error; 689fa9e4066Sahrens 690fa9e4066Sahrens retry: 69187e5029aSahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 69287e5029aSahrens DS_MODE_STANDARD | DS_MODE_READONLY, &os); 69387e5029aSahrens if (error != 0) { 694fa9e4066Sahrens /* 69587e5029aSahrens * This is ugly: dmu_objset_open() can return EBUSY if 696fa9e4066Sahrens * the objset is held exclusively. Fortunately this hold is 697fa9e4066Sahrens * only for a short while, so we retry here. 698fa9e4066Sahrens * This avoids user code having to handle EBUSY, 69987e5029aSahrens * for example for a "zfs list". 700fa9e4066Sahrens */ 701fa9e4066Sahrens if (error == EBUSY) { 702fa9e4066Sahrens delay(1); 703fa9e4066Sahrens goto retry; 704fa9e4066Sahrens } 705fa9e4066Sahrens if (error == ENOENT) 70687e5029aSahrens error = ESRCH; 707fa9e4066Sahrens return (error); 708fa9e4066Sahrens } 709fa9e4066Sahrens 710b81d61a6Slling /* 711b81d61a6Slling * A dataset name of maximum length cannot have any snapshots, 712b81d61a6Slling * so exit immediately. 713b81d61a6Slling */ 714b81d61a6Slling if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { 71587e5029aSahrens dmu_objset_close(os); 716b81d61a6Slling return (ESRCH); 717fa9e4066Sahrens } 718fa9e4066Sahrens 71987e5029aSahrens error = dmu_snapshot_list_next(os, 72087e5029aSahrens sizeof (zc->zc_name) - strlen(zc->zc_name), 72187e5029aSahrens zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie); 72287e5029aSahrens if (error == ENOENT) 72387e5029aSahrens error = ESRCH; 724fa9e4066Sahrens 72587e5029aSahrens if (error == 0) 72687e5029aSahrens error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 727fa9e4066Sahrens 72887e5029aSahrens dmu_objset_close(os); 729fa9e4066Sahrens return (error); 730fa9e4066Sahrens } 731fa9e4066Sahrens 732fa9e4066Sahrens static int 733*e9dbad6fSeschrock zfs_set_prop_nvlist(const char *name, dev_t dev, cred_t *cr, nvlist_t *nvl) 734fa9e4066Sahrens { 735*e9dbad6fSeschrock nvpair_t *elem; 736*e9dbad6fSeschrock int error; 737*e9dbad6fSeschrock const char *propname; 738*e9dbad6fSeschrock zfs_prop_t prop; 739*e9dbad6fSeschrock uint64_t intval; 740*e9dbad6fSeschrock char *strval; 741*e9dbad6fSeschrock 742*e9dbad6fSeschrock elem = NULL; 743*e9dbad6fSeschrock while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 744*e9dbad6fSeschrock propname = nvpair_name(elem); 745*e9dbad6fSeschrock 746*e9dbad6fSeschrock if ((prop = zfs_name_to_prop(propname)) == 747*e9dbad6fSeschrock ZFS_PROP_INVAL) { 748*e9dbad6fSeschrock /* 749*e9dbad6fSeschrock * If this is a user-defined property, it must be a 750*e9dbad6fSeschrock * string, and there is no further validation to do. 751*e9dbad6fSeschrock */ 752*e9dbad6fSeschrock if (!zfs_prop_user(propname) || 753*e9dbad6fSeschrock nvpair_type(elem) != DATA_TYPE_STRING) 754*e9dbad6fSeschrock return (EINVAL); 755*e9dbad6fSeschrock 756*e9dbad6fSeschrock VERIFY(nvpair_value_string(elem, &strval) == 0); 757*e9dbad6fSeschrock error = dsl_prop_set(name, propname, 1, 758*e9dbad6fSeschrock strlen(strval) + 1, strval); 759*e9dbad6fSeschrock if (error == 0) 760*e9dbad6fSeschrock continue; 761*e9dbad6fSeschrock else 762*e9dbad6fSeschrock break; 763*e9dbad6fSeschrock } 764fa9e4066Sahrens 765*e9dbad6fSeschrock /* 766*e9dbad6fSeschrock * Check permissions for special properties. 767*e9dbad6fSeschrock */ 768*e9dbad6fSeschrock switch (prop) { 769*e9dbad6fSeschrock case ZFS_PROP_ZONED: 770*e9dbad6fSeschrock /* 771*e9dbad6fSeschrock * Disallow setting of 'zoned' from within a local zone. 772*e9dbad6fSeschrock */ 773*e9dbad6fSeschrock if (!INGLOBALZONE(curproc)) 774*e9dbad6fSeschrock return (EPERM); 775*e9dbad6fSeschrock break; 776fa9e4066Sahrens 777*e9dbad6fSeschrock case ZFS_PROP_QUOTA: 778*e9dbad6fSeschrock if (error = zfs_dozonecheck(name, cr)) 779*e9dbad6fSeschrock return (error); 780fa9e4066Sahrens 781*e9dbad6fSeschrock if (!INGLOBALZONE(curproc)) { 782*e9dbad6fSeschrock uint64_t zoned; 783*e9dbad6fSeschrock char setpoint[MAXNAMELEN]; 784*e9dbad6fSeschrock int dslen; 785*e9dbad6fSeschrock /* 786*e9dbad6fSeschrock * Unprivileged users are allowed to modify the 787*e9dbad6fSeschrock * quota on things *under* (ie. contained by) 788*e9dbad6fSeschrock * the thing they own. 789*e9dbad6fSeschrock */ 790*e9dbad6fSeschrock if (dsl_prop_get_integer(name, "zoned", &zoned, 791*e9dbad6fSeschrock setpoint)) 792*e9dbad6fSeschrock return (EPERM); 793*e9dbad6fSeschrock if (!zoned) /* this shouldn't happen */ 794*e9dbad6fSeschrock return (EPERM); 795*e9dbad6fSeschrock dslen = strlen(name); 796*e9dbad6fSeschrock if (dslen <= strlen(setpoint)) 797*e9dbad6fSeschrock return (EPERM); 798*e9dbad6fSeschrock } 799*e9dbad6fSeschrock } 800*e9dbad6fSeschrock 801*e9dbad6fSeschrock switch (prop) { 802*e9dbad6fSeschrock case ZFS_PROP_QUOTA: 803*e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 804*e9dbad6fSeschrock (error = dsl_dir_set_quota(name, 805*e9dbad6fSeschrock intval)) != 0) 806*e9dbad6fSeschrock return (error); 807*e9dbad6fSeschrock break; 808*e9dbad6fSeschrock 809*e9dbad6fSeschrock case ZFS_PROP_RESERVATION: 810*e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 811*e9dbad6fSeschrock (error = dsl_dir_set_reservation(name, 812*e9dbad6fSeschrock intval)) != 0) 813*e9dbad6fSeschrock return (error); 814*e9dbad6fSeschrock break; 815*e9dbad6fSeschrock 816*e9dbad6fSeschrock case ZFS_PROP_VOLSIZE: 817*e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 818*e9dbad6fSeschrock (error = zvol_set_volsize(name, dev, 819*e9dbad6fSeschrock intval)) != 0) 820*e9dbad6fSeschrock return (error); 821*e9dbad6fSeschrock break; 822*e9dbad6fSeschrock 823*e9dbad6fSeschrock case ZFS_PROP_VOLBLOCKSIZE: 824*e9dbad6fSeschrock if ((error = nvpair_value_uint64(elem, &intval)) != 0 || 825*e9dbad6fSeschrock (error = zvol_set_volblocksize(name, 826*e9dbad6fSeschrock intval)) != 0) 827*e9dbad6fSeschrock return (error); 828*e9dbad6fSeschrock break; 829*e9dbad6fSeschrock 830*e9dbad6fSeschrock default: 831*e9dbad6fSeschrock if (nvpair_type(elem) == DATA_TYPE_STRING) { 832*e9dbad6fSeschrock if (zfs_prop_get_type(prop) != 833*e9dbad6fSeschrock prop_type_string) 834*e9dbad6fSeschrock return (EINVAL); 835*e9dbad6fSeschrock ASSERT(nvpair_value_string(elem, &strval) == 0); 836*e9dbad6fSeschrock error = dsl_prop_set(name, 837*e9dbad6fSeschrock nvpair_name(elem), 1, strlen(strval) + 1, 838*e9dbad6fSeschrock strval); 839*e9dbad6fSeschrock } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { 840*e9dbad6fSeschrock ASSERT(nvpair_value_uint64(elem, &intval) == 0); 841*e9dbad6fSeschrock 842*e9dbad6fSeschrock switch (zfs_prop_get_type(prop)) { 843*e9dbad6fSeschrock case prop_type_number: 844*e9dbad6fSeschrock break; 845*e9dbad6fSeschrock case prop_type_boolean: 846*e9dbad6fSeschrock if (intval > 1) 847*e9dbad6fSeschrock error = EINVAL; 848*e9dbad6fSeschrock break; 849*e9dbad6fSeschrock case prop_type_string: 850*e9dbad6fSeschrock error = EINVAL; 851*e9dbad6fSeschrock break; 852*e9dbad6fSeschrock case prop_type_index: 853*e9dbad6fSeschrock switch (prop) { 854*e9dbad6fSeschrock case ZFS_PROP_CHECKSUM: 855*e9dbad6fSeschrock if (intval >= 856*e9dbad6fSeschrock ZIO_CHECKSUM_FUNCTIONS) 857*e9dbad6fSeschrock error = EINVAL; 858*e9dbad6fSeschrock break; 859*e9dbad6fSeschrock case ZFS_PROP_COMPRESSION: 860*e9dbad6fSeschrock if (intval >= 861*e9dbad6fSeschrock ZIO_COMPRESS_FUNCTIONS) 862*e9dbad6fSeschrock error = EINVAL; 863*e9dbad6fSeschrock break; 864*e9dbad6fSeschrock case ZFS_PROP_SNAPDIR: 865*e9dbad6fSeschrock if (intval > 866*e9dbad6fSeschrock ZFS_SNAPDIR_VISIBLE) 867*e9dbad6fSeschrock error = EINVAL; 868*e9dbad6fSeschrock break; 869*e9dbad6fSeschrock case ZFS_PROP_ACLMODE: 870*e9dbad6fSeschrock if (intval > 871*e9dbad6fSeschrock ZFS_ACL_PASSTHROUGH) 872*e9dbad6fSeschrock error = EINVAL; 873*e9dbad6fSeschrock break; 874*e9dbad6fSeschrock case ZFS_PROP_ACLINHERIT: 875*e9dbad6fSeschrock if (intval > ZFS_ACL_SECURE || 876*e9dbad6fSeschrock intval == ZFS_ACL_GROUPMASK) 877*e9dbad6fSeschrock error = EINVAL; 878*e9dbad6fSeschrock break; 879*e9dbad6fSeschrock default: 880*e9dbad6fSeschrock cmn_err(CE_PANIC, 881*e9dbad6fSeschrock "unknown index property"); 882*e9dbad6fSeschrock } 883*e9dbad6fSeschrock break; 884*e9dbad6fSeschrock default: 885*e9dbad6fSeschrock cmn_err(CE_PANIC, "unknown property " 886*e9dbad6fSeschrock "type"); 887*e9dbad6fSeschrock break; 888*e9dbad6fSeschrock } 889*e9dbad6fSeschrock 890*e9dbad6fSeschrock error = dsl_prop_set(name, propname, 8, 1, 891*e9dbad6fSeschrock &intval); 892*e9dbad6fSeschrock } else { 893*e9dbad6fSeschrock return (EINVAL); 894*e9dbad6fSeschrock } 895*e9dbad6fSeschrock break; 896*e9dbad6fSeschrock } 897*e9dbad6fSeschrock } 898*e9dbad6fSeschrock 899*e9dbad6fSeschrock return (0); 900fa9e4066Sahrens } 901fa9e4066Sahrens 902fa9e4066Sahrens static int 903*e9dbad6fSeschrock zfs_ioc_set_prop(zfs_cmd_t *zc) 904fa9e4066Sahrens { 905*e9dbad6fSeschrock nvlist_t *nvl; 906*e9dbad6fSeschrock int error; 907*e9dbad6fSeschrock zfs_prop_t prop; 908*e9dbad6fSeschrock 909*e9dbad6fSeschrock /* 910*e9dbad6fSeschrock * If zc_value is set, then this is an attempt to inherit a value. 911*e9dbad6fSeschrock * Otherwise, zc_nvlist refers to a list of properties to set. 912*e9dbad6fSeschrock */ 913*e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 914*e9dbad6fSeschrock if (!zfs_prop_user(zc->zc_value) && 915*e9dbad6fSeschrock ((prop = zfs_name_to_prop(zc->zc_value)) == 916*e9dbad6fSeschrock ZFS_PROP_INVAL || 917*e9dbad6fSeschrock !zfs_prop_inheritable(prop))) 918*e9dbad6fSeschrock return (EINVAL); 919*e9dbad6fSeschrock 920*e9dbad6fSeschrock return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL)); 921*e9dbad6fSeschrock } 922*e9dbad6fSeschrock 923*e9dbad6fSeschrock if ((error = get_nvlist(zc, &nvl)) != 0) 924*e9dbad6fSeschrock return (error); 925*e9dbad6fSeschrock 926*e9dbad6fSeschrock error = zfs_set_prop_nvlist(zc->zc_name, zc->zc_dev, 927*e9dbad6fSeschrock (cred_t *)(uintptr_t)zc->zc_cred, nvl); 928*e9dbad6fSeschrock nvlist_free(nvl); 929*e9dbad6fSeschrock return (error); 930fa9e4066Sahrens } 931fa9e4066Sahrens 932fa9e4066Sahrens static int 933fa9e4066Sahrens zfs_ioc_create_minor(zfs_cmd_t *zc) 934fa9e4066Sahrens { 935*e9dbad6fSeschrock return (zvol_create_minor(zc->zc_name, zc->zc_dev)); 936fa9e4066Sahrens } 937fa9e4066Sahrens 938fa9e4066Sahrens static int 939fa9e4066Sahrens zfs_ioc_remove_minor(zfs_cmd_t *zc) 940fa9e4066Sahrens { 941*e9dbad6fSeschrock return (zvol_remove_minor(zc->zc_name)); 942fa9e4066Sahrens } 943fa9e4066Sahrens 944fa9e4066Sahrens /* 945fa9e4066Sahrens * Search the vfs list for a specified resource. Returns a pointer to it 946fa9e4066Sahrens * or NULL if no suitable entry is found. The caller of this routine 947fa9e4066Sahrens * is responsible for releasing the returned vfs pointer. 948fa9e4066Sahrens */ 949fa9e4066Sahrens static vfs_t * 950fa9e4066Sahrens zfs_get_vfs(const char *resource) 951fa9e4066Sahrens { 952fa9e4066Sahrens struct vfs *vfsp; 953fa9e4066Sahrens struct vfs *vfs_found = NULL; 954fa9e4066Sahrens 955fa9e4066Sahrens vfs_list_read_lock(); 956fa9e4066Sahrens vfsp = rootvfs; 957fa9e4066Sahrens do { 958fa9e4066Sahrens if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { 959fa9e4066Sahrens VFS_HOLD(vfsp); 960fa9e4066Sahrens vfs_found = vfsp; 961fa9e4066Sahrens break; 962fa9e4066Sahrens } 963fa9e4066Sahrens vfsp = vfsp->vfs_next; 964fa9e4066Sahrens } while (vfsp != rootvfs); 965fa9e4066Sahrens vfs_list_unlock(); 966fa9e4066Sahrens return (vfs_found); 967fa9e4066Sahrens } 968fa9e4066Sahrens 969fa9e4066Sahrens static void 970fa9e4066Sahrens zfs_create_cb(objset_t *os, void *arg, dmu_tx_t *tx) 971fa9e4066Sahrens { 972*e9dbad6fSeschrock zfs_create_data_t *zc = arg; 973fa9e4066Sahrens zfs_create_fs(os, (cred_t *)(uintptr_t)zc->zc_cred, tx); 974fa9e4066Sahrens } 975fa9e4066Sahrens 976fa9e4066Sahrens static int 977fa9e4066Sahrens zfs_ioc_create(zfs_cmd_t *zc) 978fa9e4066Sahrens { 979fa9e4066Sahrens objset_t *clone; 980fa9e4066Sahrens int error = 0; 981*e9dbad6fSeschrock zfs_create_data_t cbdata = { 0 }; 982fa9e4066Sahrens void (*cbfunc)(objset_t *os, void *arg, dmu_tx_t *tx); 983fa9e4066Sahrens dmu_objset_type_t type = zc->zc_objset_type; 984fa9e4066Sahrens 985fa9e4066Sahrens switch (type) { 986fa9e4066Sahrens 987fa9e4066Sahrens case DMU_OST_ZFS: 988fa9e4066Sahrens cbfunc = zfs_create_cb; 989fa9e4066Sahrens break; 990fa9e4066Sahrens 991fa9e4066Sahrens case DMU_OST_ZVOL: 992fa9e4066Sahrens cbfunc = zvol_create_cb; 993fa9e4066Sahrens break; 994fa9e4066Sahrens 995fa9e4066Sahrens default: 9961d452cf5Sahrens cbfunc = NULL; 997fa9e4066Sahrens } 9981d452cf5Sahrens if (strchr(zc->zc_name, '@')) 9991d452cf5Sahrens return (EINVAL); 1000fa9e4066Sahrens 1001*e9dbad6fSeschrock if (zc->zc_nvlist_src != NULL && 1002*e9dbad6fSeschrock (error = get_nvlist(zc, &cbdata.zc_props)) != 0) 1003*e9dbad6fSeschrock return (error); 1004*e9dbad6fSeschrock 1005*e9dbad6fSeschrock cbdata.zc_cred = (cred_t *)(uintptr_t)zc->zc_cred; 1006*e9dbad6fSeschrock cbdata.zc_dev = (dev_t)zc->zc_dev; 1007*e9dbad6fSeschrock 1008*e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 1009fa9e4066Sahrens /* 1010fa9e4066Sahrens * We're creating a clone of an existing snapshot. 1011fa9e4066Sahrens */ 1012*e9dbad6fSeschrock zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 1013*e9dbad6fSeschrock if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { 1014*e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1015fa9e4066Sahrens return (EINVAL); 1016*e9dbad6fSeschrock } 1017fa9e4066Sahrens 1018*e9dbad6fSeschrock error = dmu_objset_open(zc->zc_value, type, 1019fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &clone); 1020*e9dbad6fSeschrock if (error) { 1021*e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1022fa9e4066Sahrens return (error); 1023*e9dbad6fSeschrock } 1024fa9e4066Sahrens error = dmu_objset_create(zc->zc_name, type, clone, NULL, NULL); 1025fa9e4066Sahrens dmu_objset_close(clone); 1026fa9e4066Sahrens } else { 1027*e9dbad6fSeschrock if (cbfunc == NULL) { 1028*e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 10291d452cf5Sahrens return (EINVAL); 1030*e9dbad6fSeschrock } 10315c5460e9Seschrock 1032*e9dbad6fSeschrock if (type == DMU_OST_ZVOL) { 1033*e9dbad6fSeschrock uint64_t volsize, volblocksize; 1034*e9dbad6fSeschrock 1035*e9dbad6fSeschrock if (cbdata.zc_props == NULL || 1036*e9dbad6fSeschrock nvlist_lookup_uint64(cbdata.zc_props, 1037*e9dbad6fSeschrock zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1038*e9dbad6fSeschrock &volsize) != 0) { 1039*e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1040*e9dbad6fSeschrock return (EINVAL); 1041*e9dbad6fSeschrock } 1042*e9dbad6fSeschrock 1043*e9dbad6fSeschrock if ((error = nvlist_lookup_uint64(cbdata.zc_props, 1044*e9dbad6fSeschrock zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1045*e9dbad6fSeschrock &volblocksize)) != 0 && error != ENOENT) { 1046*e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1047*e9dbad6fSeschrock return (EINVAL); 1048*e9dbad6fSeschrock } 1049*e9dbad6fSeschrock 1050*e9dbad6fSeschrock if (error != 0) 1051*e9dbad6fSeschrock volblocksize = zfs_prop_default_numeric( 1052*e9dbad6fSeschrock ZFS_PROP_VOLBLOCKSIZE); 1053*e9dbad6fSeschrock 1054*e9dbad6fSeschrock if ((error = zvol_check_volblocksize( 1055*e9dbad6fSeschrock volblocksize)) != 0 || 1056*e9dbad6fSeschrock (error = zvol_check_volsize(volsize, 1057*e9dbad6fSeschrock volblocksize)) != 0) { 1058*e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 10595c5460e9Seschrock return (error); 1060*e9dbad6fSeschrock } 1061fa9e4066Sahrens } 1062*e9dbad6fSeschrock 1063*e9dbad6fSeschrock error = dmu_objset_create(zc->zc_name, type, NULL, cbfunc, 1064*e9dbad6fSeschrock &cbdata); 1065fa9e4066Sahrens } 1066*e9dbad6fSeschrock 1067*e9dbad6fSeschrock /* 1068*e9dbad6fSeschrock * It would be nice to do this atomically. 1069*e9dbad6fSeschrock */ 1070*e9dbad6fSeschrock if (error == 0) { 1071*e9dbad6fSeschrock if ((error = zfs_set_prop_nvlist(zc->zc_name, 1072*e9dbad6fSeschrock zc->zc_dev, (cred_t *)(uintptr_t)zc->zc_cred, 1073*e9dbad6fSeschrock cbdata.zc_props)) != 0) 1074*e9dbad6fSeschrock (void) dmu_objset_destroy(zc->zc_name); 1075*e9dbad6fSeschrock } 1076*e9dbad6fSeschrock 1077*e9dbad6fSeschrock nvlist_free(cbdata.zc_props); 1078fa9e4066Sahrens return (error); 1079fa9e4066Sahrens } 1080fa9e4066Sahrens 1081fa9e4066Sahrens static int 10821d452cf5Sahrens zfs_ioc_snapshot(zfs_cmd_t *zc) 1083fa9e4066Sahrens { 1084*e9dbad6fSeschrock if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) 10851d452cf5Sahrens return (EINVAL); 10861d452cf5Sahrens return (dmu_objset_snapshot(zc->zc_name, 1087*e9dbad6fSeschrock zc->zc_value, zc->zc_cookie)); 10881d452cf5Sahrens } 1089fa9e4066Sahrens 10901d452cf5Sahrens static int 10911d452cf5Sahrens zfs_unmount_snap(char *name, void *arg) 10921d452cf5Sahrens { 10931d452cf5Sahrens char *snapname = arg; 10941d452cf5Sahrens char *cp; 10950b69c2f0Sahrens vfs_t *vfsp = NULL; 10961d452cf5Sahrens 10971d452cf5Sahrens /* 10981d452cf5Sahrens * Snapshots (which are under .zfs control) must be unmounted 10991d452cf5Sahrens * before they can be destroyed. 11001d452cf5Sahrens */ 11011d452cf5Sahrens 11021d452cf5Sahrens if (snapname) { 11031d452cf5Sahrens (void) strcat(name, "@"); 11041d452cf5Sahrens (void) strcat(name, snapname); 11051d452cf5Sahrens vfsp = zfs_get_vfs(name); 11061d452cf5Sahrens cp = strchr(name, '@'); 11071d452cf5Sahrens *cp = '\0'; 11080b69c2f0Sahrens } else if (strchr(name, '@')) { 11091d452cf5Sahrens vfsp = zfs_get_vfs(name); 11101d452cf5Sahrens } 11111d452cf5Sahrens 11121d452cf5Sahrens if (vfsp) { 1113fa9e4066Sahrens /* 11141d452cf5Sahrens * Always force the unmount for snapshots. 1115fa9e4066Sahrens */ 11161d452cf5Sahrens int flag = MS_FORCE; 11171d452cf5Sahrens int err; 11181d452cf5Sahrens 11191d452cf5Sahrens if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { 1120fa9e4066Sahrens VFS_RELE(vfsp); 11211d452cf5Sahrens return (err); 1122fa9e4066Sahrens } 11231d452cf5Sahrens VFS_RELE(vfsp); 11241d452cf5Sahrens if ((err = dounmount(vfsp, flag, kcred)) != 0) 11251d452cf5Sahrens return (err); 11261d452cf5Sahrens } 11271d452cf5Sahrens return (0); 11281d452cf5Sahrens } 11291d452cf5Sahrens 11301d452cf5Sahrens static int 11311d452cf5Sahrens zfs_ioc_destroy_snaps(zfs_cmd_t *zc) 11321d452cf5Sahrens { 11331d452cf5Sahrens int err; 11341d452cf5Sahrens 1135*e9dbad6fSeschrock if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) 11361d452cf5Sahrens return (EINVAL); 11371d452cf5Sahrens err = dmu_objset_find(zc->zc_name, 1138*e9dbad6fSeschrock zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN); 11391d452cf5Sahrens if (err) 11401d452cf5Sahrens return (err); 1141*e9dbad6fSeschrock return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value)); 11421d452cf5Sahrens } 11431d452cf5Sahrens 11441d452cf5Sahrens static int 11451d452cf5Sahrens zfs_ioc_destroy(zfs_cmd_t *zc) 11461d452cf5Sahrens { 11471d452cf5Sahrens if (strchr(zc->zc_name, '@') && 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 1153fa9e4066Sahrens return (dmu_objset_destroy(zc->zc_name)); 1154fa9e4066Sahrens } 1155fa9e4066Sahrens 1156fa9e4066Sahrens static int 1157fa9e4066Sahrens zfs_ioc_rollback(zfs_cmd_t *zc) 1158fa9e4066Sahrens { 1159fa9e4066Sahrens return (dmu_objset_rollback(zc->zc_name)); 1160fa9e4066Sahrens } 1161fa9e4066Sahrens 1162fa9e4066Sahrens static int 1163fa9e4066Sahrens zfs_ioc_rename(zfs_cmd_t *zc) 1164fa9e4066Sahrens { 1165*e9dbad6fSeschrock zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 1166*e9dbad6fSeschrock if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) 1167fa9e4066Sahrens return (EINVAL); 1168fa9e4066Sahrens 1169fa9e4066Sahrens if (strchr(zc->zc_name, '@') != NULL && 1170fa9e4066Sahrens zc->zc_objset_type == DMU_OST_ZFS) { 11711d452cf5Sahrens int err = zfs_unmount_snap(zc->zc_name, NULL); 11721d452cf5Sahrens if (err) 11731d452cf5Sahrens return (err); 1174fa9e4066Sahrens } 1175fa9e4066Sahrens 1176*e9dbad6fSeschrock return (dmu_objset_rename(zc->zc_name, zc->zc_value)); 1177fa9e4066Sahrens } 1178fa9e4066Sahrens 1179fa9e4066Sahrens static int 1180fa9e4066Sahrens zfs_ioc_recvbackup(zfs_cmd_t *zc) 1181fa9e4066Sahrens { 1182fa9e4066Sahrens file_t *fp; 1183fa9e4066Sahrens int error, fd; 1184fa9e4066Sahrens 1185fa9e4066Sahrens fd = zc->zc_cookie; 1186fa9e4066Sahrens fp = getf(fd); 1187fa9e4066Sahrens if (fp == NULL) 1188fa9e4066Sahrens return (EBADF); 1189*e9dbad6fSeschrock error = dmu_recvbackup(zc->zc_value, &zc->zc_begin_record, 1190*e9dbad6fSeschrock &zc->zc_cookie, (boolean_t)zc->zc_guid, fp->f_vnode, 119198579b20Snd fp->f_offset); 1192fa9e4066Sahrens releasef(fd); 1193fa9e4066Sahrens return (error); 1194fa9e4066Sahrens } 1195fa9e4066Sahrens 1196fa9e4066Sahrens static int 1197fa9e4066Sahrens zfs_ioc_sendbackup(zfs_cmd_t *zc) 1198fa9e4066Sahrens { 1199fa9e4066Sahrens objset_t *fromsnap = NULL; 1200fa9e4066Sahrens objset_t *tosnap; 1201fa9e4066Sahrens file_t *fp; 1202fa9e4066Sahrens int error; 1203fa9e4066Sahrens 1204fa9e4066Sahrens error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, 1205fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &tosnap); 1206fa9e4066Sahrens if (error) 1207fa9e4066Sahrens return (error); 1208fa9e4066Sahrens 1209*e9dbad6fSeschrock if (zc->zc_value[0] != '\0') { 1210*e9dbad6fSeschrock error = dmu_objset_open(zc->zc_value, DMU_OST_ANY, 1211fa9e4066Sahrens DS_MODE_STANDARD | DS_MODE_READONLY, &fromsnap); 1212fa9e4066Sahrens if (error) { 1213fa9e4066Sahrens dmu_objset_close(tosnap); 1214fa9e4066Sahrens return (error); 1215fa9e4066Sahrens } 1216fa9e4066Sahrens } 1217fa9e4066Sahrens 1218fa9e4066Sahrens fp = getf(zc->zc_cookie); 1219fa9e4066Sahrens if (fp == NULL) { 1220fa9e4066Sahrens dmu_objset_close(tosnap); 1221fa9e4066Sahrens if (fromsnap) 1222fa9e4066Sahrens dmu_objset_close(fromsnap); 1223fa9e4066Sahrens return (EBADF); 1224fa9e4066Sahrens } 1225fa9e4066Sahrens 1226fa9e4066Sahrens error = dmu_sendbackup(tosnap, fromsnap, fp->f_vnode); 1227fa9e4066Sahrens 1228fa9e4066Sahrens releasef(zc->zc_cookie); 1229fa9e4066Sahrens if (fromsnap) 1230fa9e4066Sahrens dmu_objset_close(fromsnap); 1231fa9e4066Sahrens dmu_objset_close(tosnap); 1232fa9e4066Sahrens return (error); 1233fa9e4066Sahrens } 1234fa9e4066Sahrens 1235ea8dc4b6Seschrock static int 1236ea8dc4b6Seschrock zfs_ioc_inject_fault(zfs_cmd_t *zc) 1237ea8dc4b6Seschrock { 1238ea8dc4b6Seschrock int id, error; 1239ea8dc4b6Seschrock 1240ea8dc4b6Seschrock error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, 1241ea8dc4b6Seschrock &zc->zc_inject_record); 1242ea8dc4b6Seschrock 1243ea8dc4b6Seschrock if (error == 0) 1244ea8dc4b6Seschrock zc->zc_guid = (uint64_t)id; 1245ea8dc4b6Seschrock 1246ea8dc4b6Seschrock return (error); 1247ea8dc4b6Seschrock } 1248ea8dc4b6Seschrock 1249ea8dc4b6Seschrock static int 1250ea8dc4b6Seschrock zfs_ioc_clear_fault(zfs_cmd_t *zc) 1251ea8dc4b6Seschrock { 1252ea8dc4b6Seschrock return (zio_clear_fault((int)zc->zc_guid)); 1253ea8dc4b6Seschrock } 1254ea8dc4b6Seschrock 1255ea8dc4b6Seschrock static int 1256ea8dc4b6Seschrock zfs_ioc_inject_list_next(zfs_cmd_t *zc) 1257ea8dc4b6Seschrock { 1258ea8dc4b6Seschrock int id = (int)zc->zc_guid; 1259ea8dc4b6Seschrock int error; 1260ea8dc4b6Seschrock 1261ea8dc4b6Seschrock error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), 1262ea8dc4b6Seschrock &zc->zc_inject_record); 1263ea8dc4b6Seschrock 1264ea8dc4b6Seschrock zc->zc_guid = id; 1265ea8dc4b6Seschrock 1266ea8dc4b6Seschrock return (error); 1267ea8dc4b6Seschrock } 1268ea8dc4b6Seschrock 1269ea8dc4b6Seschrock static int 1270ea8dc4b6Seschrock zfs_ioc_error_log(zfs_cmd_t *zc) 1271ea8dc4b6Seschrock { 1272ea8dc4b6Seschrock spa_t *spa; 1273ea8dc4b6Seschrock int error; 1274*e9dbad6fSeschrock size_t count = (size_t)zc->zc_nvlist_dst_size; 1275ea8dc4b6Seschrock 1276ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1277ea8dc4b6Seschrock return (error); 1278ea8dc4b6Seschrock 1279*e9dbad6fSeschrock error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, 1280ea8dc4b6Seschrock &count); 1281ea8dc4b6Seschrock if (error == 0) 1282*e9dbad6fSeschrock zc->zc_nvlist_dst_size = count; 1283ea8dc4b6Seschrock else 1284*e9dbad6fSeschrock zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); 1285ea8dc4b6Seschrock 1286ea8dc4b6Seschrock spa_close(spa, FTAG); 1287ea8dc4b6Seschrock 1288ea8dc4b6Seschrock return (error); 1289ea8dc4b6Seschrock } 1290ea8dc4b6Seschrock 1291ea8dc4b6Seschrock static int 1292ea8dc4b6Seschrock zfs_ioc_clear(zfs_cmd_t *zc) 1293ea8dc4b6Seschrock { 1294ea8dc4b6Seschrock spa_t *spa; 1295ea8dc4b6Seschrock vdev_t *vd; 1296ea8dc4b6Seschrock int error; 1297ea8dc4b6Seschrock 1298ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1299ea8dc4b6Seschrock return (error); 1300ea8dc4b6Seschrock 1301ea8dc4b6Seschrock spa_config_enter(spa, RW_WRITER, FTAG); 1302ea8dc4b6Seschrock 1303*e9dbad6fSeschrock if (zc->zc_guid == 0) { 1304ea8dc4b6Seschrock vd = NULL; 1305*e9dbad6fSeschrock } else if ((vd = spa_lookup_by_guid(spa, zc->zc_guid)) == NULL) { 1306ea8dc4b6Seschrock spa_config_exit(spa, FTAG); 1307ea8dc4b6Seschrock spa_close(spa, FTAG); 1308ea8dc4b6Seschrock return (ENODEV); 1309ea8dc4b6Seschrock } 1310ea8dc4b6Seschrock 1311ea8dc4b6Seschrock vdev_clear(spa, vd); 1312ea8dc4b6Seschrock 1313ea8dc4b6Seschrock spa_config_exit(spa, FTAG); 1314ea8dc4b6Seschrock 1315ea8dc4b6Seschrock spa_close(spa, FTAG); 1316ea8dc4b6Seschrock 1317ea8dc4b6Seschrock return (0); 1318ea8dc4b6Seschrock } 1319ea8dc4b6Seschrock 1320ea8dc4b6Seschrock static int 1321ea8dc4b6Seschrock zfs_ioc_bookmark_name(zfs_cmd_t *zc) 1322ea8dc4b6Seschrock { 1323ea8dc4b6Seschrock spa_t *spa; 1324ea8dc4b6Seschrock int error; 1325*e9dbad6fSeschrock nvlist_t *nvl; 1326ea8dc4b6Seschrock 1327ea8dc4b6Seschrock if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1328ea8dc4b6Seschrock return (error); 1329ea8dc4b6Seschrock 1330*e9dbad6fSeschrock VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1331*e9dbad6fSeschrock 1332*e9dbad6fSeschrock error = spa_bookmark_name(spa, &zc->zc_bookmark, nvl); 1333*e9dbad6fSeschrock if (error == 0) 1334*e9dbad6fSeschrock error = put_nvlist(zc, nvl); 1335*e9dbad6fSeschrock nvlist_free(nvl); 1336ea8dc4b6Seschrock 1337ea8dc4b6Seschrock spa_close(spa, FTAG); 1338ea8dc4b6Seschrock 1339ea8dc4b6Seschrock return (error); 1340ea8dc4b6Seschrock } 1341ea8dc4b6Seschrock 134299653d4eSeschrock static int 134399653d4eSeschrock zfs_ioc_promote(zfs_cmd_t *zc) 134499653d4eSeschrock { 13450b69c2f0Sahrens char *cp; 13460b69c2f0Sahrens 13470b69c2f0Sahrens /* 13480b69c2f0Sahrens * We don't need to unmount *all* the origin fs's snapshots, but 13490b69c2f0Sahrens * it's easier. 13500b69c2f0Sahrens */ 1351*e9dbad6fSeschrock cp = strchr(zc->zc_value, '@'); 13520b69c2f0Sahrens if (cp) 13530b69c2f0Sahrens *cp = '\0'; 1354*e9dbad6fSeschrock (void) dmu_objset_find(zc->zc_value, 13550b69c2f0Sahrens zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); 135699653d4eSeschrock return (dsl_dataset_promote(zc->zc_name)); 135799653d4eSeschrock } 135899653d4eSeschrock 1359fa9e4066Sahrens static zfs_ioc_vec_t zfs_ioc_vec[] = { 1360fa9e4066Sahrens { zfs_ioc_pool_create, zfs_secpolicy_config, pool_name }, 1361fa9e4066Sahrens { zfs_ioc_pool_destroy, zfs_secpolicy_config, pool_name }, 1362fa9e4066Sahrens { zfs_ioc_pool_import, zfs_secpolicy_config, pool_name }, 1363fa9e4066Sahrens { zfs_ioc_pool_export, zfs_secpolicy_config, pool_name }, 1364fa9e4066Sahrens { zfs_ioc_pool_configs, zfs_secpolicy_none, no_name }, 1365fa9e4066Sahrens { zfs_ioc_pool_stats, zfs_secpolicy_read, pool_name }, 1366fa9e4066Sahrens { zfs_ioc_pool_tryimport, zfs_secpolicy_config, no_name }, 1367fa9e4066Sahrens { zfs_ioc_pool_scrub, zfs_secpolicy_config, pool_name }, 1368fa9e4066Sahrens { zfs_ioc_pool_freeze, zfs_secpolicy_config, no_name }, 1369eaca9bbdSeschrock { zfs_ioc_pool_upgrade, zfs_secpolicy_config, pool_name }, 1370fa9e4066Sahrens { zfs_ioc_vdev_add, zfs_secpolicy_config, pool_name }, 1371fa9e4066Sahrens { zfs_ioc_vdev_remove, zfs_secpolicy_config, pool_name }, 1372fa9e4066Sahrens { zfs_ioc_vdev_online, zfs_secpolicy_config, pool_name }, 1373fa9e4066Sahrens { zfs_ioc_vdev_offline, zfs_secpolicy_config, pool_name }, 1374fa9e4066Sahrens { zfs_ioc_vdev_attach, zfs_secpolicy_config, pool_name }, 1375fa9e4066Sahrens { zfs_ioc_vdev_detach, zfs_secpolicy_config, pool_name }, 1376c67d9675Seschrock { zfs_ioc_vdev_setpath, zfs_secpolicy_config, pool_name }, 1377fa9e4066Sahrens { zfs_ioc_objset_stats, zfs_secpolicy_read, dataset_name }, 1378fa9e4066Sahrens { zfs_ioc_dataset_list_next, zfs_secpolicy_read, dataset_name }, 1379fa9e4066Sahrens { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, dataset_name }, 1380*e9dbad6fSeschrock { zfs_ioc_set_prop, zfs_secpolicy_write, dataset_name }, 1381fa9e4066Sahrens { zfs_ioc_create_minor, zfs_secpolicy_config, dataset_name }, 1382fa9e4066Sahrens { zfs_ioc_remove_minor, zfs_secpolicy_config, dataset_name }, 1383fa9e4066Sahrens { zfs_ioc_create, zfs_secpolicy_parent, dataset_name }, 1384fa9e4066Sahrens { zfs_ioc_destroy, zfs_secpolicy_parent, dataset_name }, 1385fa9e4066Sahrens { zfs_ioc_rollback, zfs_secpolicy_write, dataset_name }, 1386fa9e4066Sahrens { zfs_ioc_rename, zfs_secpolicy_write, dataset_name }, 1387fa9e4066Sahrens { zfs_ioc_recvbackup, zfs_secpolicy_write, dataset_name }, 1388fa9e4066Sahrens { zfs_ioc_sendbackup, zfs_secpolicy_write, dataset_name }, 1389ea8dc4b6Seschrock { zfs_ioc_inject_fault, zfs_secpolicy_inject, no_name }, 1390ea8dc4b6Seschrock { zfs_ioc_clear_fault, zfs_secpolicy_inject, no_name }, 1391ea8dc4b6Seschrock { zfs_ioc_inject_list_next, zfs_secpolicy_inject, no_name }, 1392ea8dc4b6Seschrock { zfs_ioc_error_log, zfs_secpolicy_inject, pool_name }, 1393ea8dc4b6Seschrock { zfs_ioc_clear, zfs_secpolicy_config, pool_name }, 139499653d4eSeschrock { zfs_ioc_bookmark_name, zfs_secpolicy_inject, pool_name }, 13951d452cf5Sahrens { zfs_ioc_promote, zfs_secpolicy_write, dataset_name }, 13961d452cf5Sahrens { zfs_ioc_destroy_snaps, zfs_secpolicy_write, dataset_name }, 13971d452cf5Sahrens { zfs_ioc_snapshot, zfs_secpolicy_write, dataset_name } 1398fa9e4066Sahrens }; 1399fa9e4066Sahrens 1400fa9e4066Sahrens static int 1401fa9e4066Sahrens zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) 1402fa9e4066Sahrens { 1403fa9e4066Sahrens zfs_cmd_t *zc; 1404fa9e4066Sahrens uint_t vec; 14051d452cf5Sahrens int error, rc; 1406fa9e4066Sahrens 1407fa9e4066Sahrens if (getminor(dev) != 0) 1408fa9e4066Sahrens return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp)); 1409fa9e4066Sahrens 1410fa9e4066Sahrens vec = cmd - ZFS_IOC; 1411fa9e4066Sahrens 1412fa9e4066Sahrens if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) 1413fa9e4066Sahrens return (EINVAL); 1414fa9e4066Sahrens 1415fa9e4066Sahrens zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); 1416fa9e4066Sahrens 1417fa9e4066Sahrens error = xcopyin((void *)arg, zc, sizeof (zfs_cmd_t)); 1418fa9e4066Sahrens 1419fa9e4066Sahrens if (error == 0) { 1420fa9e4066Sahrens zc->zc_cred = (uintptr_t)cr; 1421fa9e4066Sahrens zc->zc_dev = dev; 1422*e9dbad6fSeschrock error = zfs_ioc_vec[vec].zvec_secpolicy(zc->zc_name, cr); 1423fa9e4066Sahrens } 1424fa9e4066Sahrens 1425fa9e4066Sahrens /* 1426fa9e4066Sahrens * Ensure that all pool/dataset names are valid before we pass down to 1427fa9e4066Sahrens * the lower layers. 1428fa9e4066Sahrens */ 1429fa9e4066Sahrens if (error == 0) { 1430fa9e4066Sahrens zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 1431fa9e4066Sahrens switch (zfs_ioc_vec[vec].zvec_namecheck) { 1432fa9e4066Sahrens case pool_name: 1433fa9e4066Sahrens if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) 1434fa9e4066Sahrens error = EINVAL; 1435fa9e4066Sahrens break; 1436fa9e4066Sahrens 1437fa9e4066Sahrens case dataset_name: 1438fa9e4066Sahrens if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) 1439fa9e4066Sahrens error = EINVAL; 1440fa9e4066Sahrens break; 1441fa9e4066Sahrens } 1442fa9e4066Sahrens } 1443fa9e4066Sahrens 1444fa9e4066Sahrens if (error == 0) 1445fa9e4066Sahrens error = zfs_ioc_vec[vec].zvec_func(zc); 1446fa9e4066Sahrens 14471d452cf5Sahrens rc = xcopyout(zc, (void *)arg, sizeof (zfs_cmd_t)); 14481d452cf5Sahrens if (error == 0) 14491d452cf5Sahrens error = rc; 1450fa9e4066Sahrens 1451fa9e4066Sahrens kmem_free(zc, sizeof (zfs_cmd_t)); 1452fa9e4066Sahrens return (error); 1453fa9e4066Sahrens } 1454fa9e4066Sahrens 1455fa9e4066Sahrens static int 1456fa9e4066Sahrens zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 1457fa9e4066Sahrens { 1458fa9e4066Sahrens if (cmd != DDI_ATTACH) 1459fa9e4066Sahrens return (DDI_FAILURE); 1460fa9e4066Sahrens 1461fa9e4066Sahrens if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, 1462fa9e4066Sahrens DDI_PSEUDO, 0) == DDI_FAILURE) 1463fa9e4066Sahrens return (DDI_FAILURE); 1464fa9e4066Sahrens 1465fa9e4066Sahrens zfs_dip = dip; 1466fa9e4066Sahrens 1467fa9e4066Sahrens ddi_report_dev(dip); 1468fa9e4066Sahrens 1469fa9e4066Sahrens return (DDI_SUCCESS); 1470fa9e4066Sahrens } 1471fa9e4066Sahrens 1472fa9e4066Sahrens static int 1473fa9e4066Sahrens zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 1474fa9e4066Sahrens { 1475fa9e4066Sahrens if (spa_busy() || zfs_busy() || zvol_busy()) 1476fa9e4066Sahrens return (DDI_FAILURE); 1477fa9e4066Sahrens 1478fa9e4066Sahrens if (cmd != DDI_DETACH) 1479fa9e4066Sahrens return (DDI_FAILURE); 1480fa9e4066Sahrens 1481fa9e4066Sahrens zfs_dip = NULL; 1482fa9e4066Sahrens 1483fa9e4066Sahrens ddi_prop_remove_all(dip); 1484fa9e4066Sahrens ddi_remove_minor_node(dip, NULL); 1485fa9e4066Sahrens 1486fa9e4066Sahrens return (DDI_SUCCESS); 1487fa9e4066Sahrens } 1488fa9e4066Sahrens 1489fa9e4066Sahrens /*ARGSUSED*/ 1490fa9e4066Sahrens static int 1491fa9e4066Sahrens zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 1492fa9e4066Sahrens { 1493fa9e4066Sahrens switch (infocmd) { 1494fa9e4066Sahrens case DDI_INFO_DEVT2DEVINFO: 1495fa9e4066Sahrens *result = zfs_dip; 1496fa9e4066Sahrens return (DDI_SUCCESS); 1497fa9e4066Sahrens 1498fa9e4066Sahrens case DDI_INFO_DEVT2INSTANCE: 1499a0965f35Sbonwick *result = (void *)0; 1500fa9e4066Sahrens return (DDI_SUCCESS); 1501fa9e4066Sahrens } 1502fa9e4066Sahrens 1503fa9e4066Sahrens return (DDI_FAILURE); 1504fa9e4066Sahrens } 1505fa9e4066Sahrens 1506fa9e4066Sahrens /* 1507fa9e4066Sahrens * OK, so this is a little weird. 1508fa9e4066Sahrens * 1509fa9e4066Sahrens * /dev/zfs is the control node, i.e. minor 0. 1510fa9e4066Sahrens * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. 1511fa9e4066Sahrens * 1512fa9e4066Sahrens * /dev/zfs has basically nothing to do except serve up ioctls, 1513fa9e4066Sahrens * so most of the standard driver entry points are in zvol.c. 1514fa9e4066Sahrens */ 1515fa9e4066Sahrens static struct cb_ops zfs_cb_ops = { 1516fa9e4066Sahrens zvol_open, /* open */ 1517fa9e4066Sahrens zvol_close, /* close */ 1518fa9e4066Sahrens zvol_strategy, /* strategy */ 1519fa9e4066Sahrens nodev, /* print */ 1520fa9e4066Sahrens nodev, /* dump */ 1521fa9e4066Sahrens zvol_read, /* read */ 1522fa9e4066Sahrens zvol_write, /* write */ 1523fa9e4066Sahrens zfsdev_ioctl, /* ioctl */ 1524fa9e4066Sahrens nodev, /* devmap */ 1525fa9e4066Sahrens nodev, /* mmap */ 1526fa9e4066Sahrens nodev, /* segmap */ 1527fa9e4066Sahrens nochpoll, /* poll */ 1528fa9e4066Sahrens ddi_prop_op, /* prop_op */ 1529fa9e4066Sahrens NULL, /* streamtab */ 1530fa9e4066Sahrens D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ 1531fa9e4066Sahrens CB_REV, /* version */ 1532fa9e4066Sahrens zvol_aread, /* async read */ 1533fa9e4066Sahrens zvol_awrite, /* async write */ 1534fa9e4066Sahrens }; 1535fa9e4066Sahrens 1536fa9e4066Sahrens static struct dev_ops zfs_dev_ops = { 1537fa9e4066Sahrens DEVO_REV, /* version */ 1538fa9e4066Sahrens 0, /* refcnt */ 1539fa9e4066Sahrens zfs_info, /* info */ 1540fa9e4066Sahrens nulldev, /* identify */ 1541fa9e4066Sahrens nulldev, /* probe */ 1542fa9e4066Sahrens zfs_attach, /* attach */ 1543fa9e4066Sahrens zfs_detach, /* detach */ 1544fa9e4066Sahrens nodev, /* reset */ 1545fa9e4066Sahrens &zfs_cb_ops, /* driver operations */ 1546fa9e4066Sahrens NULL /* no bus operations */ 1547fa9e4066Sahrens }; 1548fa9e4066Sahrens 1549fa9e4066Sahrens static struct modldrv zfs_modldrv = { 1550*e9dbad6fSeschrock &mod_driverops, "ZFS storage pool version " ZFS_VERSION_STRING, 1551*e9dbad6fSeschrock &zfs_dev_ops 1552fa9e4066Sahrens }; 1553fa9e4066Sahrens 1554fa9e4066Sahrens static struct modlinkage modlinkage = { 1555fa9e4066Sahrens MODREV_1, 1556fa9e4066Sahrens (void *)&zfs_modlfs, 1557fa9e4066Sahrens (void *)&zfs_modldrv, 1558fa9e4066Sahrens NULL 1559fa9e4066Sahrens }; 1560fa9e4066Sahrens 1561fa9e4066Sahrens int 1562fa9e4066Sahrens _init(void) 1563fa9e4066Sahrens { 1564fa9e4066Sahrens int error; 1565fa9e4066Sahrens 1566a0965f35Sbonwick spa_init(FREAD | FWRITE); 1567a0965f35Sbonwick zfs_init(); 1568a0965f35Sbonwick zvol_init(); 1569a0965f35Sbonwick 1570a0965f35Sbonwick if ((error = mod_install(&modlinkage)) != 0) { 1571a0965f35Sbonwick zvol_fini(); 1572a0965f35Sbonwick zfs_fini(); 1573a0965f35Sbonwick spa_fini(); 1574fa9e4066Sahrens return (error); 1575a0965f35Sbonwick } 1576fa9e4066Sahrens 1577fa9e4066Sahrens error = ldi_ident_from_mod(&modlinkage, &zfs_li); 1578fa9e4066Sahrens ASSERT(error == 0); 1579fa9e4066Sahrens 1580fa9e4066Sahrens return (0); 1581fa9e4066Sahrens } 1582fa9e4066Sahrens 1583fa9e4066Sahrens int 1584fa9e4066Sahrens _fini(void) 1585fa9e4066Sahrens { 1586fa9e4066Sahrens int error; 1587fa9e4066Sahrens 1588ea8dc4b6Seschrock if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) 1589fa9e4066Sahrens return (EBUSY); 1590fa9e4066Sahrens 1591fa9e4066Sahrens if ((error = mod_remove(&modlinkage)) != 0) 1592fa9e4066Sahrens return (error); 1593fa9e4066Sahrens 1594fa9e4066Sahrens zvol_fini(); 1595fa9e4066Sahrens zfs_fini(); 1596fa9e4066Sahrens spa_fini(); 1597fa9e4066Sahrens 1598fa9e4066Sahrens ldi_ident_release(zfs_li); 1599fa9e4066Sahrens zfs_li = NULL; 1600fa9e4066Sahrens 1601fa9e4066Sahrens return (error); 1602fa9e4066Sahrens } 1603fa9e4066Sahrens 1604fa9e4066Sahrens int 1605fa9e4066Sahrens _info(struct modinfo *modinfop) 1606fa9e4066Sahrens { 1607fa9e4066Sahrens return (mod_info(&modlinkage, modinfop)); 1608fa9e4066Sahrens } 1609