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sys/contrib/openzfs/module/zfs/zfs_ioctl.c
| Show First 20 Lines • Show All 3,505 Lines • ▼ Show 20 Lines | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | ||||
| error = spa_history_log(spa, message); | error = spa_history_log(spa, message); | ||||
| spa_close(spa, FTAG); | spa_close(spa, FTAG); | ||||
| return (error); | return (error); | ||||
| } | } | ||||
| /* | /* | ||||
| * This ioctl is used to set the bootenv configuration on the current | * This ioctl is used to set the bootenv configuration on the current | ||||
| * pool. This configuration is stored in the second padding area of the label, | * pool. This configuration is stored in the second padding area of the label, | ||||
| * and it is used by the GRUB bootloader used on Linux to store the contents | * and it is used by the bootloader(s) to store the bootloader and/or system | ||||
| * of the grubenv file. The file is stored as raw ASCII, and is protected by | * specific data. | ||||
| * an embedded checksum. By default, GRUB will check if the boot filesystem | * The data is stored as nvlist data stream, and is protected by | ||||
| * supports storing the environment data in a special location, and if so, | * an embedded checksum. | ||||
| * will invoke filesystem specific logic to retrieve it. This can be overridden | * The version can have two possible values: | ||||
| * by a variable, should the user so desire. | * VB_RAW: nvlist should have key GRUB_ENVMAP, value DATA_TYPE_STRING. | ||||
| * VB_NVLIST: nvlist with arbitrary <key, value> pairs. | |||||
| */ | */ | ||||
| /* ARGSUSED */ | |||||
| static const zfs_ioc_key_t zfs_keys_set_bootenv[] = { | static const zfs_ioc_key_t zfs_keys_set_bootenv[] = { | ||||
| {"envmap", DATA_TYPE_STRING, 0}, | {"version", DATA_TYPE_UINT64, 0}, | ||||
| {"<keys>", DATA_TYPE_ANY, ZK_OPTIONAL | ZK_WILDCARDLIST}, | |||||
| }; | }; | ||||
| static int | static int | ||||
| zfs_ioc_set_bootenv(const char *name, nvlist_t *innvl, nvlist_t *outnvl) | zfs_ioc_set_bootenv(const char *name, nvlist_t *innvl, nvlist_t *outnvl) | ||||
| { | { | ||||
| char *envmap; | |||||
| int error; | int error; | ||||
| spa_t *spa; | spa_t *spa; | ||||
| envmap = fnvlist_lookup_string(innvl, "envmap"); | |||||
| if ((error = spa_open(name, &spa, FTAG)) != 0) | if ((error = spa_open(name, &spa, FTAG)) != 0) | ||||
| return (error); | return (error); | ||||
| spa_vdev_state_enter(spa, SCL_ALL); | spa_vdev_state_enter(spa, SCL_ALL); | ||||
| error = vdev_label_write_bootenv(spa->spa_root_vdev, envmap); | error = vdev_label_write_bootenv(spa->spa_root_vdev, innvl); | ||||
| (void) spa_vdev_state_exit(spa, NULL, 0); | (void) spa_vdev_state_exit(spa, NULL, 0); | ||||
| spa_close(spa, FTAG); | spa_close(spa, FTAG); | ||||
| return (error); | return (error); | ||||
| } | } | ||||
| static const zfs_ioc_key_t zfs_keys_get_bootenv[] = { | static const zfs_ioc_key_t zfs_keys_get_bootenv[] = { | ||||
| /* no nvl keys */ | /* no nvl keys */ | ||||
| }; | }; | ||||
| /* ARGSUSED */ | |||||
| static int | static int | ||||
| zfs_ioc_get_bootenv(const char *name, nvlist_t *innvl, nvlist_t *outnvl) | zfs_ioc_get_bootenv(const char *name, nvlist_t *innvl, nvlist_t *outnvl) | ||||
| { | { | ||||
| spa_t *spa; | spa_t *spa; | ||||
| int error; | int error; | ||||
| if ((error = spa_open(name, &spa, FTAG)) != 0) | if ((error = spa_open(name, &spa, FTAG)) != 0) | ||||
| return (error); | return (error); | ||||
| ▲ Show 20 Lines • Show All 4,075 Lines • Show Last 20 Lines | |||||