Introduce the ZFS Boot Environments menu to the loader menu
If the system was booted with ZFS, a new menu item (#7) appears It contains an autogenerated list of ZFS Boot Environments This allows the user to switch to an alternate root file system Use Cases: - Revert a failed upgrade - Concurrently run different versions of FreeBSD with common home directory - Easier integration with the sysadmin/beadm utility Requested by: many Reviewed by: dteske MFC after: 10 days Relnotes: yes Sponsored by: ScaleEngine Inc. Differential Revision: https://reviews.freebsd.org/D3167
This commit is contained in:
Allan Jude
parent
29a46b5320
commit
f1aba489c1
@ -90,6 +90,7 @@ ram_blacklist_type="ram_blacklist" # Required for the kernel to find
|
||||
#password="" # Prevent changes to boot options
|
||||
#bootlock_password="" # Prevent booting (see check-password.4th(8))
|
||||
#geom_eli_passphrase_prompt="NO" # Prompt for geli(8) passphrase to mount root
|
||||
bootenv_autolist="YES" # Auto populate the list of ZFS Boot Environments
|
||||
#beastie_disable="NO" # Turn the beastie boot menu on and off
|
||||
#kernels="kernel kernel.old" # Kernels to display in the boot menu
|
||||
#loader_logo="orbbw" # Desired logo: orbbw, orb, fbsdbw, beastiebw, beastie, none
|
||||
|
||||
@ -351,4 +351,68 @@ also menu-namespace also menu-command-helpers
|
||||
2 goto_menu
|
||||
;
|
||||
|
||||
\
|
||||
\ Set boot environment defaults
|
||||
\
|
||||
|
||||
: init_bootenv ( -- )
|
||||
s" set menu_caption[1]=${bemenu_current}${vfs.root.mountfrom}" evaluate
|
||||
s" set ansi_caption[1]=${beansi_current}${vfs.root.mountfrom}" evaluate
|
||||
s" set menu_caption[2]=${bemenu_bootfs}${zfs_be_active}" evaluate
|
||||
s" set ansi_caption[2]=${beansi_bootfs}${zfs_be_active}" evaluate
|
||||
s" set menu_caption[3]=${bemenu_page}${zfs_be_currpage}${bemenu_pageof}${zfs_be_pages}" evaluate
|
||||
s" set ansi_caption[3]=${beansi_page}${zfs_be_currpage}${bemenu_pageof}${zfs_be_pages}" evaluate
|
||||
;
|
||||
|
||||
\
|
||||
\ Redraw the entire screen. A long BE name can corrupt the menu
|
||||
\
|
||||
|
||||
: be_draw_screen
|
||||
clear \ Clear the screen (in screen.4th)
|
||||
print_version \ print version string (bottom-right; see version.4th)
|
||||
draw-beastie \ Draw FreeBSD logo at right (in beastie.4th)
|
||||
draw-brand \ Draw brand.4th logo at top (in brand.4th)
|
||||
menu-init \ Initialize menu and draw bounding box (in menu.4th)
|
||||
;
|
||||
|
||||
\
|
||||
\ Select a boot environment
|
||||
\
|
||||
|
||||
: set_bootenv ( N -- N TRUE )
|
||||
dup s" set vfs.root.mountfrom=${bootenv_root[E]}" 38 +c! evaluate
|
||||
s" set currdev=${vfs.root.mountfrom}:" evaluate
|
||||
s" unload" evaluate
|
||||
free-module-options
|
||||
s" /boot/defaults/loader.conf" read-conf
|
||||
s" /boot/loader.conf" read-conf
|
||||
s" /boot/loader.conf.local" read-conf
|
||||
init_bootenv
|
||||
be_draw_screen
|
||||
menu-redraw
|
||||
TRUE
|
||||
;
|
||||
|
||||
\
|
||||
\ Switch to the next page of boot environments
|
||||
\
|
||||
|
||||
: set_be_page ( N -- N TRUE )
|
||||
s" zfs_be_currpage" getenv dup -1 = if
|
||||
drop s" 1"
|
||||
else
|
||||
0 s>d 2swap
|
||||
>number ( ud caddr/u -- ud' caddr'/u' ) \ convert string to numbers
|
||||
2drop \ drop the string
|
||||
1 um/mod ( ud u1 -- u2 u3 ) \ convert double ud' to single u3' and remainder u2
|
||||
swap drop ( ud2 u3 -- u3 ) \ drop the remainder u2
|
||||
1+ \ increment the page number
|
||||
s>d <# #s #> \ convert back to a string
|
||||
then
|
||||
s" zfs_be_currpage" setenv
|
||||
s" reloadbe" evaluate
|
||||
3 goto_menu
|
||||
;
|
||||
|
||||
only forth definitions
|
||||
|
||||
@ -68,6 +68,13 @@ set mainmenu_command[6]="2 goto_menu"
|
||||
set mainmenu_keycode[6]=111
|
||||
set mainansi_caption[6]="Configure Boot ^[1mO^[mptions..."
|
||||
|
||||
s" currdev" getenv dup 0> [if] drop 4 s" zfs:" compare 0= [if]
|
||||
set mainmenu_caption[7]="Select Boot [E]nvironment..."
|
||||
set mainmenu_command[7]="3 goto_menu"
|
||||
set mainmenu_keycode[7]=101
|
||||
set mainansi_caption[7]="Select Boot ^[1mE^[37mnvironment..."
|
||||
[then] [else] drop [then]
|
||||
|
||||
\
|
||||
\ BOOT OPTIONS MENU
|
||||
\
|
||||
@ -119,6 +126,37 @@ set optionsmenu_keycode[6]=118
|
||||
set optionsansi_caption[6]="^[1mV^[merbose..... ^[34;1mOff^[m"
|
||||
set optionstoggled_ansi[6]="^[1mV^[merbose..... ^[32;7mOn^[m"
|
||||
|
||||
\
|
||||
\ BOOT ENVIRONMENT MENU
|
||||
\
|
||||
|
||||
set menuset_name3="bootenv"
|
||||
|
||||
set bemenu_current="Active: "
|
||||
set beansi_current="^[1m${bemenu_current}^[m"
|
||||
set bemenu_bootfs="bootfs: "
|
||||
set beansi_bootfs="^[1m${bemenu_bootfs}^[m"
|
||||
set bemenu_page="[P]age: "
|
||||
set beansi_page="^[1mP^[mage: "
|
||||
set bemenu_pageof=" of "
|
||||
set beansi_pageof="${bemenu_pageof}"
|
||||
set zfs_be_currpage=1
|
||||
|
||||
set bootenvmenu_init="init_bootenv"
|
||||
|
||||
set bootenvmenu_command[1]="be_draw_screen 1 goto_menu"
|
||||
set bootenvmenu_keycode[1]=8
|
||||
|
||||
set bootenvmenu_command[2]="set_bootenv"
|
||||
set bootenvmenu_keycode[2]=97
|
||||
set bootenv_root[2]="${zfs_be_active}"
|
||||
|
||||
set bootenvmenu_command[3]="set_be_page"
|
||||
set bootenvmenu_keycode[3]=112
|
||||
|
||||
set bootenvmenu_options=4
|
||||
set bootenvmenu_optionstext="Boot Environments:"
|
||||
|
||||
\ Enable automatic booting (add ``autoboot_delay=N'' to loader.conf(5) to
|
||||
\ customize the timeout; default is 10-seconds)
|
||||
\
|
||||
@ -128,6 +166,21 @@ set menu_timeout_command="boot"
|
||||
\
|
||||
try-include /boot/menu.rc.local
|
||||
|
||||
\ Initialize boot environment variables
|
||||
\
|
||||
s" reloadbe" sfind ( xt|0 bool ) [if]
|
||||
s" bootenv_autolist" getenv dup -1 = [if]
|
||||
drop s" execute" evaluate \ Use evaluate to avoid passing
|
||||
\ reloadbe an optional parameter
|
||||
[else]
|
||||
s" YES" compare-insensitive 0= [if]
|
||||
s" execute" evaluate
|
||||
[then]
|
||||
[then]
|
||||
[else]
|
||||
drop ( xt=0 )
|
||||
[then]
|
||||
|
||||
\ Display the main menu (see `menu.4th')
|
||||
set menuset_initial=1
|
||||
menuset-loadinitial
|
||||
|
||||
@ -930,6 +930,30 @@ only forth definitions also support-functions
|
||||
repeat
|
||||
;
|
||||
|
||||
: free-one-module { addr -- addr }
|
||||
addr module.name strfree
|
||||
addr module.loadname strfree
|
||||
addr module.type strfree
|
||||
addr module.args strfree
|
||||
addr module.beforeload strfree
|
||||
addr module.afterload strfree
|
||||
addr module.loaderror strfree
|
||||
addr
|
||||
;
|
||||
|
||||
: free-module-options
|
||||
module_options @
|
||||
begin
|
||||
?dup
|
||||
while
|
||||
free-one-module
|
||||
dup module.next @
|
||||
swap free-memory
|
||||
repeat
|
||||
0 module_options !
|
||||
0 last_module_option !
|
||||
;
|
||||
|
||||
only forth also support-functions definitions
|
||||
|
||||
\ Variables used for processing multiple conf files
|
||||
|
||||
@ -69,6 +69,7 @@ static int isa_inb(int port);
|
||||
static void isa_outb(int port, int value);
|
||||
void exit(int code);
|
||||
#ifdef LOADER_ZFS_SUPPORT
|
||||
static void init_zfs_bootenv(char *currdev);
|
||||
static void i386_zfs_probe(void);
|
||||
#endif
|
||||
|
||||
@ -294,12 +295,40 @@ extract_currdev(void)
|
||||
new_currdev.d_unit = 0;
|
||||
}
|
||||
|
||||
#ifdef LOADER_ZFS_SUPPORT
|
||||
init_zfs_bootenv(zfs_fmtdev(&new_currdev));
|
||||
#endif
|
||||
|
||||
env_setenv("currdev", EV_VOLATILE, i386_fmtdev(&new_currdev),
|
||||
i386_setcurrdev, env_nounset);
|
||||
env_setenv("loaddev", EV_VOLATILE, i386_fmtdev(&new_currdev), env_noset,
|
||||
env_nounset);
|
||||
}
|
||||
|
||||
#ifdef LOADER_ZFS_SUPPORT
|
||||
static void
|
||||
init_zfs_bootenv(char *currdev)
|
||||
{
|
||||
char *beroot;
|
||||
|
||||
/* Remove the trailing : */
|
||||
currdev[strlen(currdev) - 1] = '\0';
|
||||
setenv("zfs_be_active", currdev, 1);
|
||||
/* Do not overwrite if already set */
|
||||
setenv("vfs.root.mountfrom", currdev, 0);
|
||||
/* Forward past zfs: */
|
||||
currdev = strchr(currdev, ':');
|
||||
currdev++;
|
||||
/* Remove the last element (current bootenv) */
|
||||
beroot = strrchr(currdev, '/');
|
||||
beroot[0] = '\0';
|
||||
|
||||
beroot = currdev;
|
||||
|
||||
setenv("zfs_be_root", beroot, 1);
|
||||
}
|
||||
#endif
|
||||
|
||||
COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);
|
||||
|
||||
static int
|
||||
@ -353,6 +382,34 @@ command_lszfs(int argc, char *argv[])
|
||||
command_errmsg = strerror(err);
|
||||
return (CMD_ERROR);
|
||||
}
|
||||
|
||||
return (CMD_OK);
|
||||
}
|
||||
|
||||
COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments",
|
||||
command_reloadbe);
|
||||
|
||||
static int
|
||||
command_reloadbe(int argc, char *argv[])
|
||||
{
|
||||
int err;
|
||||
|
||||
if (argc > 2) {
|
||||
command_errmsg = "wrong number of arguments";
|
||||
return (CMD_ERROR);
|
||||
}
|
||||
|
||||
if (argc == 2) {
|
||||
err = zfs_bootenv(argv[1]);
|
||||
} else {
|
||||
err = zfs_bootenv(getenv("zfs_be_root"));
|
||||
}
|
||||
|
||||
if (err != 0) {
|
||||
command_errmsg = strerror(err);
|
||||
return (CMD_ERROR);
|
||||
}
|
||||
|
||||
return (CMD_OK);
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -62,6 +62,9 @@ int zfs_parsedev(struct zfs_devdesc *dev, const char *devspec,
|
||||
char *zfs_fmtdev(void *vdev);
|
||||
int zfs_probe_dev(const char *devname, uint64_t *pool_guid);
|
||||
int zfs_list(const char *name);
|
||||
int zfs_bootenv(const char *name);
|
||||
int zfs_belist_add(const char *name);
|
||||
int zfs_set_env(void);
|
||||
|
||||
extern struct devsw zfs_dev;
|
||||
extern struct fs_ops zfs_fsops;
|
||||
|
||||
@ -48,6 +48,10 @@ __FBSDID("$FreeBSD$");
|
||||
|
||||
#include "zfsimpl.c"
|
||||
|
||||
/* Define the range of indexes to be populated with ZFS Boot Environments */
|
||||
#define ZFS_BE_FIRST 4
|
||||
#define ZFS_BE_LAST 8
|
||||
|
||||
static int zfs_open(const char *path, struct open_file *f);
|
||||
static int zfs_write(struct open_file *f, void *buf, size_t size, size_t *resid);
|
||||
static int zfs_close(struct open_file *f);
|
||||
@ -80,6 +84,16 @@ struct file {
|
||||
zap_leaf_phys_t *f_zap_leaf; /* zap leaf buffer */
|
||||
};
|
||||
|
||||
static int zfs_env_index;
|
||||
static int zfs_env_count;
|
||||
|
||||
SLIST_HEAD(zfs_be_list, zfs_be_entry) zfs_be_head = SLIST_HEAD_INITIALIZER(zfs_be_head);
|
||||
struct zfs_be_list *zfs_be_headp;
|
||||
struct zfs_be_entry {
|
||||
const char *name;
|
||||
SLIST_ENTRY(zfs_be_entry) entries;
|
||||
} *zfs_be, *zfs_be_tmp;
|
||||
|
||||
/*
|
||||
* Open a file.
|
||||
*/
|
||||
@ -691,6 +705,156 @@ zfs_list(const char *name)
|
||||
rv = zfs_lookup_dataset(spa, dsname, &objid);
|
||||
if (rv != 0)
|
||||
return (rv);
|
||||
rv = zfs_list_dataset(spa, objid);
|
||||
|
||||
return (zfs_list_dataset(spa, objid));
|
||||
}
|
||||
|
||||
int
|
||||
zfs_bootenv(const char *name)
|
||||
{
|
||||
static char poolname[ZFS_MAXNAMELEN], *dsname;
|
||||
char becount[4];
|
||||
uint64_t objid;
|
||||
spa_t *spa;
|
||||
int len, rv, pages, perpage, currpage;
|
||||
|
||||
if (strcmp(name, getenv("zfs_be_root")) != 0) {
|
||||
if (setenv("zfs_be_root", name, 1) != 0)
|
||||
return (ENOMEM);
|
||||
}
|
||||
|
||||
SLIST_INIT(&zfs_be_head);
|
||||
zfs_env_count = 0;
|
||||
len = strlen(name);
|
||||
dsname = strchr(name, '/');
|
||||
if (dsname != NULL) {
|
||||
len = dsname - name;
|
||||
dsname++;
|
||||
} else
|
||||
dsname = "";
|
||||
memcpy(poolname, name, len);
|
||||
poolname[len] = '\0';
|
||||
|
||||
spa = spa_find_by_name(poolname);
|
||||
if (!spa)
|
||||
return (ENXIO);
|
||||
rv = zfs_lookup_dataset(spa, dsname, &objid);
|
||||
if (rv != 0)
|
||||
return (rv);
|
||||
rv = zfs_callback_dataset(spa, objid, zfs_belist_add);
|
||||
|
||||
/* Calculate and store the number of pages of BEs */
|
||||
perpage = (ZFS_BE_LAST - ZFS_BE_FIRST + 1);
|
||||
pages = (zfs_env_count / perpage) + ((zfs_env_count % perpage) > 0 ? 1 : 0);
|
||||
snprintf(becount, 4, "%d", pages);
|
||||
if (setenv("zfs_be_pages", becount, 1) != 0)
|
||||
return (ENOMEM);
|
||||
|
||||
/* Roll over the page counter if it has exceeded the maximum */
|
||||
currpage = strtol(getenv("zfs_be_currpage"), NULL, 10);
|
||||
if (currpage > pages) {
|
||||
if (setenv("zfs_be_currpage", "1", 1) != 0)
|
||||
return (ENOMEM);
|
||||
}
|
||||
|
||||
/* Populate the menu environment variables */
|
||||
zfs_set_env();
|
||||
|
||||
/* Clean up the SLIST of ZFS BEs */
|
||||
while (!SLIST_EMPTY(&zfs_be_head)) {
|
||||
zfs_be = SLIST_FIRST(&zfs_be_head);
|
||||
SLIST_REMOVE_HEAD(&zfs_be_head, entries);
|
||||
free(zfs_be);
|
||||
}
|
||||
|
||||
return (rv);
|
||||
}
|
||||
|
||||
int
|
||||
zfs_belist_add(const char *name)
|
||||
{
|
||||
|
||||
/* Add the boot environment to the head of the SLIST */
|
||||
zfs_be = malloc(sizeof(struct zfs_be_entry));
|
||||
zfs_be->name = name;
|
||||
SLIST_INSERT_HEAD(&zfs_be_head, zfs_be, entries);
|
||||
zfs_env_count++;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
zfs_set_env(void)
|
||||
{
|
||||
char envname[32], envval[256];
|
||||
char *beroot, *pagenum;
|
||||
int rv, page, ctr;
|
||||
|
||||
beroot = getenv("zfs_be_root");
|
||||
if (beroot == NULL) {
|
||||
return (1);
|
||||
}
|
||||
|
||||
pagenum = getenv("zfs_be_currpage");
|
||||
if (pagenum != NULL) {
|
||||
page = strtol(pagenum, NULL, 10);
|
||||
} else {
|
||||
page = 1;
|
||||
}
|
||||
|
||||
ctr = 1;
|
||||
rv = 0;
|
||||
zfs_env_index = ZFS_BE_FIRST;
|
||||
SLIST_FOREACH_SAFE(zfs_be, &zfs_be_head, entries, zfs_be_tmp) {
|
||||
/* Skip to the requested page number */
|
||||
if (ctr <= ((ZFS_BE_LAST - ZFS_BE_FIRST + 1) * (page - 1))) {
|
||||
ctr++;
|
||||
continue;
|
||||
}
|
||||
|
||||
snprintf(envname, sizeof(envname), "bootenvmenu_caption[%d]", zfs_env_index);
|
||||
snprintf(envval, sizeof(envval), "%s", zfs_be->name);
|
||||
rv = setenv(envname, envval, 1);
|
||||
if (rv != 0) {
|
||||
break;
|
||||
}
|
||||
|
||||
snprintf(envname, sizeof(envname), "bootenvansi_caption[%d]", zfs_env_index);
|
||||
rv = setenv(envname, envval, 1);
|
||||
if (rv != 0){
|
||||
break;
|
||||
}
|
||||
|
||||
snprintf(envname, sizeof(envname), "bootenvmenu_command[%d]", zfs_env_index);
|
||||
rv = setenv(envname, "set_bootenv", 1);
|
||||
if (rv != 0){
|
||||
break;
|
||||
}
|
||||
|
||||
snprintf(envname, sizeof(envname), "bootenv_root[%d]", zfs_env_index);
|
||||
snprintf(envval, sizeof(envval), "zfs:%s/%s", beroot, zfs_be->name);
|
||||
rv = setenv(envname, envval, 1);
|
||||
if (rv != 0){
|
||||
break;
|
||||
}
|
||||
|
||||
zfs_env_index++;
|
||||
if (zfs_env_index > ZFS_BE_LAST) {
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
for (; zfs_env_index <= ZFS_BE_LAST; zfs_env_index++) {
|
||||
snprintf(envname, sizeof(envname), "bootenvmenu_caption[%d]", zfs_env_index);
|
||||
(void)unsetenv(envname);
|
||||
snprintf(envname, sizeof(envname), "bootenvansi_caption[%d]", zfs_env_index);
|
||||
(void)unsetenv(envname);
|
||||
snprintf(envname, sizeof(envname), "bootenvmenu_command[%d]", zfs_env_index);
|
||||
(void)unsetenv(envname);
|
||||
snprintf(envname, sizeof(envname), "bootenv_root[%d]", zfs_env_index);
|
||||
(void)unsetenv(envname);
|
||||
}
|
||||
|
||||
return (rv);
|
||||
}
|
||||
@ -1473,7 +1473,7 @@ zap_lookup(const spa_t *spa, const dnode_phys_t *dnode, const char *name, uint64
|
||||
* the directory contents.
|
||||
*/
|
||||
static int
|
||||
mzap_list(const dnode_phys_t *dnode)
|
||||
mzap_list(const dnode_phys_t *dnode, int (*callback)(const char *))
|
||||
{
|
||||
const mzap_phys_t *mz;
|
||||
const mzap_ent_phys_t *mze;
|
||||
@ -1492,7 +1492,7 @@ mzap_list(const dnode_phys_t *dnode)
|
||||
mze = &mz->mz_chunk[i];
|
||||
if (mze->mze_name[0])
|
||||
//printf("%-32s 0x%jx\n", mze->mze_name, (uintmax_t)mze->mze_value);
|
||||
printf("%s\n", mze->mze_name);
|
||||
callback(mze->mze_name);
|
||||
}
|
||||
|
||||
return (0);
|
||||
@ -1503,7 +1503,7 @@ mzap_list(const dnode_phys_t *dnode)
|
||||
* the directory header.
|
||||
*/
|
||||
static int
|
||||
fzap_list(const spa_t *spa, const dnode_phys_t *dnode)
|
||||
fzap_list(const spa_t *spa, const dnode_phys_t *dnode, int (*callback)(const char *))
|
||||
{
|
||||
int bsize = dnode->dn_datablkszsec << SPA_MINBLOCKSHIFT;
|
||||
zap_phys_t zh = *(zap_phys_t *) zap_scratch;
|
||||
@ -1566,13 +1566,21 @@ fzap_list(const spa_t *spa, const dnode_phys_t *dnode)
|
||||
value = fzap_leaf_value(&zl, zc);
|
||||
|
||||
//printf("%s 0x%jx\n", name, (uintmax_t)value);
|
||||
printf("%s\n", name);
|
||||
callback((const char *)name);
|
||||
}
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int zfs_printf(const char *name)
|
||||
{
|
||||
|
||||
printf("%s\n", name);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* List a zap directory.
|
||||
*/
|
||||
@ -1587,9 +1595,9 @@ zap_list(const spa_t *spa, const dnode_phys_t *dnode)
|
||||
|
||||
zap_type = *(uint64_t *) zap_scratch;
|
||||
if (zap_type == ZBT_MICRO)
|
||||
return mzap_list(dnode);
|
||||
return mzap_list(dnode, zfs_printf);
|
||||
else
|
||||
return fzap_list(spa, dnode);
|
||||
return fzap_list(spa, dnode, zfs_printf);
|
||||
}
|
||||
|
||||
static int
|
||||
@ -1858,6 +1866,48 @@ zfs_list_dataset(const spa_t *spa, uint64_t objnum/*, int pos, char *entry*/)
|
||||
|
||||
return (zap_list(spa, &child_dir_zap) != 0);
|
||||
}
|
||||
|
||||
int
|
||||
zfs_callback_dataset(const spa_t *spa, uint64_t objnum, int (*callback)(const char *name))
|
||||
{
|
||||
uint64_t dir_obj, child_dir_zapobj, zap_type;
|
||||
dnode_phys_t child_dir_zap, dir, dataset;
|
||||
dsl_dataset_phys_t *ds;
|
||||
dsl_dir_phys_t *dd;
|
||||
int err;
|
||||
|
||||
err = objset_get_dnode(spa, &spa->spa_mos, objnum, &dataset);
|
||||
if (err != 0) {
|
||||
printf("ZFS: can't find dataset %ju\n", (uintmax_t)objnum);
|
||||
return (err);
|
||||
}
|
||||
ds = (dsl_dataset_phys_t *) &dataset.dn_bonus;
|
||||
dir_obj = ds->ds_dir_obj;
|
||||
|
||||
err = objset_get_dnode(spa, &spa->spa_mos, dir_obj, &dir);
|
||||
if (err != 0) {
|
||||
printf("ZFS: can't find dirobj %ju\n", (uintmax_t)dir_obj);
|
||||
return (err);
|
||||
}
|
||||
dd = (dsl_dir_phys_t *)&dir.dn_bonus;
|
||||
|
||||
child_dir_zapobj = dd->dd_child_dir_zapobj;
|
||||
err = objset_get_dnode(spa, &spa->spa_mos, child_dir_zapobj, &child_dir_zap);
|
||||
if (err != 0) {
|
||||
printf("ZFS: can't find child zap %ju\n", (uintmax_t)dir_obj);
|
||||
return (err);
|
||||
}
|
||||
|
||||
err = dnode_read(spa, &child_dir_zap, 0, zap_scratch, child_dir_zap.dn_datablkszsec * 512);
|
||||
if (err != 0)
|
||||
return (err);
|
||||
|
||||
zap_type = *(uint64_t *) zap_scratch;
|
||||
if (zap_type == ZBT_MICRO)
|
||||
return mzap_list(&child_dir_zap, callback);
|
||||
else
|
||||
return fzap_list(spa, &child_dir_zap, callback);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user