1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25 
  26 /*
  27  * Copyright 2013 Nexenta Systems, Inc. All rights reserved.
  28  * Copyright 2015 Toomas Soome <tsoome@me.com>
  29  */
  30 
  31 #ifndef _LIBBE_PRIV_H
  32 #define _LIBBE_PRIV_H
  33 
  34 #include <libnvpair.h>
  35 #include <libzfs.h>
  36 #include <instzones_api.h>
  37 
  38 #ifdef __cplusplus
  39 extern "C" {
  40 #endif
  41 
  42 #define ARCH_LENGTH             MAXNAMELEN
  43 #define BE_AUTO_NAME_MAX_TRY    3
  44 #define BE_AUTO_NAME_DELIM      '-'
  45 #define BE_DEFAULTS             "/etc/default/be"
  46 #define BE_DFLT_BENAME_STARTS   "BENAME_STARTS_WITH="
  47 #define BE_CONTAINER_DS_NAME    "ROOT"
  48 #define BE_DEFAULT_CONSOLE      "text"
  49 #define BE_POLICY_PROPERTY      "org.opensolaris.libbe:policy"
  50 #define BE_UUID_PROPERTY        "org.opensolaris.libbe:uuid"
  51 #define BE_PLCY_STATIC          "static"
  52 #define BE_PLCY_VOLATILE        "volatile"
  53 #define BE_GRUB_MENU            "/boot/grub/menu.lst"
  54 #define BE_SPARC_MENU           "/boot/menu.lst"
  55 #define BE_GRUB_COMMENT         "#============ End of LIBBE entry ============="
  56 #define BE_GRUB_SPLASH          "splashimage /boot/solaris.xpm"
  57 #define BE_GRUB_FOREGROUND      "foreground 343434"
  58 #define BE_GRUB_BACKGROUND      "background F7FBFF"
  59 #define BE_GRUB_DEFAULT         "default 0"
  60 #define BE_WHITE_SPACE          " \t\r\n"
  61 #define BE_CAP_FILE             "/boot/grub/capability"
  62 #define BE_INSTALL_GRUB         "/sbin/installgrub"
  63 #define BE_GRUB_STAGE_1         "/boot/grub/stage1"
  64 #define BE_GRUB_STAGE_2         "/boot/grub/stage2"
  65 #define BE_INSTALL_BOOT         "/usr/sbin/installboot"
  66 #define BE_SPARC_BOOTBLK        "/lib/fs/zfs/bootblk"
  67 
  68 #define ZFS_CLOSE(_zhp) \
  69         if (_zhp) { \
  70                 zfs_close(_zhp); \
  71                 _zhp = NULL; \
  72         }
  73 
  74 #define BE_ZONE_PARENTBE_PROPERTY       "org.opensolaris.libbe:parentbe"
  75 #define BE_ZONE_ACTIVE_PROPERTY         "org.opensolaris.libbe:active"
  76 
  77 /* Maximum length for the BE name. */
  78 #define BE_NAME_MAX_LEN         64
  79 
  80 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  81 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  82 
  83 typedef struct be_transaction_data {
  84         char            *obe_name;      /* Original BE name */
  85         char            *obe_root_ds;   /* Original BE root dataset */
  86         char            *obe_zpool;     /* Original BE pool */
  87         char            *obe_snap_name; /* Original BE snapshot name */
  88         char            *obe_altroot;   /* Original BE altroot */
  89         char            *nbe_name;      /* New BE name */
  90         char            *nbe_root_ds;   /* New BE root dataset */
  91         char            *nbe_zpool;     /* New BE pool */
  92         char            *nbe_desc;      /* New BE description */
  93         nvlist_t        *nbe_zfs_props; /* New BE dataset properties */
  94         char            *policy;        /* BE policy type */
  95 } be_transaction_data_t;
  96 
  97 typedef struct be_mount_data {
  98         char            *altroot;       /* Location of where to mount BE */
  99         boolean_t       shared_fs;      /* Mount shared file sytsems */
 100         boolean_t       shared_rw;      /* Mount shared file systems rw */
 101 } be_mount_data_t;
 102 
 103 typedef struct be_unmount_data {
 104         char            *altroot;       /* Location of where BE is mounted */
 105         boolean_t       force;          /* Forcibly unmount */
 106 } be_unmount_data_t;
 107 
 108 typedef struct be_destroy_data {
 109         boolean_t       destroy_snaps;  /* Destroy snapshots of BE */
 110         boolean_t       force_unmount;  /* Forcibly unmount BE if mounted */
 111         uuid_t          gz_be_uuid;     /* UUID of the global zone BE */
 112 } be_destroy_data_t;
 113 
 114 typedef struct be_demote_data {
 115         zfs_handle_t    *clone_zhp;     /* clone dataset to promote */
 116         time_t          origin_creation; /* snapshot creation time of clone */
 117         const char      *snapshot;      /* snapshot of dataset being demoted */
 118         boolean_t       find_in_BE;     /* flag noting to find clone in BE */
 119 } be_demote_data_t;
 120 
 121 typedef struct be_fs_list_data {
 122         char            *altroot;
 123         char            **fs_list;
 124         int             fs_num;
 125 } be_fs_list_data_t;
 126 
 127 typedef struct be_plcy_list {
 128         char                    *be_plcy_name;
 129         int                     be_num_max;
 130         int                     be_num_min;
 131         time_t                  be_age_max;
 132         int                     be_usage_pcnt;
 133         struct be_plcy_list     *be_next_plcy;
 134 }be_plcy_list_t;
 135 
 136 struct be_defaults {
 137         boolean_t       be_deflt_rpool_container;
 138         char            be_deflt_bename_starts_with[ZFS_MAXNAMELEN];
 139 };
 140 
 141 /* Library globals */
 142 extern libzfs_handle_t *g_zfs;
 143 extern boolean_t do_print;
 144 
 145 /* be_create.c */
 146 int be_set_uuid(char *);
 147 int be_get_uuid(const char *, uuid_t *);
 148 
 149 /* be_list.c */
 150 int _be_list(char *, be_node_list_t **);
 151 int be_get_zone_be_list(char *, char *, be_node_list_t **);
 152 
 153 /* be_mount.c */
 154 int _be_mount(char *, char **, int);
 155 int _be_unmount(char *, int);
 156 int be_mount_pool(zfs_handle_t *, char **, char **, boolean_t *);
 157 int be_unmount_pool(zfs_handle_t *, char *, char *);
 158 int be_mount_zone_root(zfs_handle_t *, be_mount_data_t *);
 159 int be_unmount_zone_root(zfs_handle_t *, be_unmount_data_t *);
 160 int be_get_legacy_fs(char *, char *, char *, char *, be_fs_list_data_t *);
 161 void be_free_fs_list(be_fs_list_data_t *);
 162 char *be_get_ds_from_dir(char *);
 163 int be_make_tmp_mountpoint(char **);
 164 
 165 /* be_snapshot.c */
 166 int _be_create_snapshot(char *, char **, char *);
 167 int _be_destroy_snapshot(char *, char *);
 168 
 169 /* be_utils.c */
 170 boolean_t be_zfs_init(void);
 171 void be_zfs_fini(void);
 172 void be_make_root_ds(const char *, const char *, char *, int);
 173 void be_make_container_ds(const char *, char *, int);
 174 char *be_make_name_from_ds(const char *, char *);
 175 int be_append_menu(char *, char *, char *, char *, char *);
 176 int be_remove_menu(char *, char *, char *);
 177 int be_update_menu(char *, char *, char *, char *);
 178 int be_default_grub_bootfs(const char *, char **);
 179 boolean_t be_has_menu_entry(char *, char *, int *);
 180 int be_run_cmd(char *, char *, int, char *, int);
 181 int be_change_grub_default(char *, char *);
 182 int be_update_vfstab(char *, char *, char *, be_fs_list_data_t *, char *);
 183 int be_update_zone_vfstab(zfs_handle_t *, char *, char *, char *,
 184     be_fs_list_data_t *);
 185 int be_maxsize_avail(zfs_handle_t *, uint64_t *);
 186 char *be_auto_snap_name(void);
 187 char *be_auto_be_name(char *);
 188 char *be_auto_zone_be_name(char *, char *);
 189 char *be_default_policy(void);
 190 boolean_t valid_be_policy(char *);
 191 boolean_t be_valid_auto_snap_name(char *);
 192 boolean_t be_valid_be_name(const char *);
 193 void be_print_err(char *, ...);
 194 int be_find_current_be(be_transaction_data_t *);
 195 int zfs_err_to_be_err(libzfs_handle_t *);
 196 int errno_to_be_err(int);
 197 
 198 /* be_activate.c */
 199 int _be_activate(char *);
 200 int be_activate_current_be(void);
 201 boolean_t be_is_active_on_boot(char *);
 202 
 203 /* be_zones.c */
 204 void be_make_zoneroot(char *, char *, int);
 205 int be_find_active_zone_root(zfs_handle_t *, char *, char *, int);
 206 int be_find_mounted_zone_root(char *, char *, char *, int);
 207 boolean_t be_zone_supported(char *);
 208 int be_zone_get_parent_uuid(const char *, uuid_t *);
 209 int be_zone_set_parent_uuid(char *, uuid_t);
 210 boolean_t be_zone_compare_uuids(char *);
 211 
 212 /* check architecture functions */
 213 char *be_get_default_isa(void);
 214 char *be_get_platform(void);
 215 boolean_t be_is_isa(char *);
 216 boolean_t be_has_grub(void);
 217 
 218 /* callback functions */
 219 int be_exists_callback(zpool_handle_t *, void *);
 220 int be_find_zpool_callback(zpool_handle_t *, void *);
 221 int be_zpool_find_current_be_callback(zpool_handle_t *, void *);
 222 int be_zfs_find_current_be_callback(zfs_handle_t *, void *);
 223 int be_check_be_roots_callback(zpool_handle_t *, void *);
 224 
 225 /* defaults */
 226 void be_get_defaults(struct be_defaults *defaults);
 227 
 228 #ifdef __cplusplus
 229 }
 230 #endif
 231 
 232 #endif  /* _LIBBE_PRIV_H */