Differential D25512 Diff 76427 stand/userboot/userboot/main.c

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stand/userboot/userboot/main.c

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#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

#include <stand.h>		#include <stand.h>
#include <string.h>		#include <string.h>
#include <setjmp.h>		#include <setjmp.h>
#include <sys/disk.h>		#include <sys/disk.h>
		#include <sys/zfs_bootenv.h>

#include "bootstrap.h"		#include "bootstrap.h"
#include "disk.h"		#include "disk.h"
#include "libuserboot.h"		#include "libuserboot.h"

#if defined(USERBOOT_ZFS_SUPPORT)		#if defined(USERBOOT_ZFS_SUPPORT)
#include "libzfs.h"		#include "libzfs.h"

▲ Show 20 Lines • Show All 166 Lines • ▼ Show 20 Lines	#endif
if (setjmp(jb))		if (setjmp(jb))
return;		return;

interact(); /* doesn't return */		interact(); /* doesn't return */

exit(0);		exit(0);
}		}

		static void
		set_currdev(const char *devname)
		{

		env_setenv("currdev", EV_VOLATILE, devname,
		userboot_setcurrdev, env_nounset);
		env_setenv("loaddev", EV_VOLATILE, devname,
		env_noset, env_nounset);
		}

/*		/*
* Set the 'current device' by (if possible) recovering the boot device as		* Set the 'current device' by (if possible) recovering the boot device as
* supplied by the initial bootstrap.		* supplied by the initial bootstrap.
*/		*/
static void		static void
extract_currdev(void)		extract_currdev(void)
{		{
struct disk_devdesc dev;		struct disk_devdesc dev;
struct devdesc *dd;		struct devdesc *dd;
#if defined(USERBOOT_ZFS_SUPPORT)		#if defined(USERBOOT_ZFS_SUPPORT)
struct zfs_devdesc zdev;		struct zfs_devdesc zdev;
		char *buf = NULL;

if (userboot_zfs_found) {		if (userboot_zfs_found) {

/* Leave the pool/root guid's unassigned */		/* Leave the pool/root guid's unassigned */
bzero(&zdev, sizeof(zdev));		bzero(&zdev, sizeof(zdev));
zdev.dd.d_dev = &zfs_dev;		zdev.dd.d_dev = &zfs_dev;

init_zfs_boot_options(zfs_fmtdev(&zdev));		init_zfs_boot_options(zfs_fmtdev(&zdev));
Show All 16 Lines	if (userboot_disk_maxunit > 0) {
}		}
dd = &dev.dd;		dd = &dev.dd;
} else {		} else {
dev.dd.d_dev = &host_dev;		dev.dd.d_dev = &host_dev;
dev.dd.d_unit = 0;		dev.dd.d_unit = 0;
dd = &dev.dd;		dd = &dev.dd;
}		}

env_setenv("currdev", EV_VOLATILE, userboot_fmtdev(dd),		set_currdev(userboot_fmtdev(dd));
userboot_setcurrdev, env_nounset);
env_setenv("loaddev", EV_VOLATILE, userboot_fmtdev(dd),		#if defined(USERBOOT_ZFS_SUPPORT)
env_noset, env_nounset);		if (userboot_zfs_found) {
		buf = malloc(VDEV_PAD_SIZE);
		if (buf != NULL) {
		if (zfs_get_bootonce(&zdev, OS_BOOTONCE, buf,
		VDEV_PAD_SIZE) == 0) {
		printf("zfs bootonce: %s\n", buf);
		set_currdev(buf);
		setenv("zfs-bootonce", buf, 1);
		}
		free(buf);
		(void) zfs_attach_nvstore(&zdev);
		}
		}
		#endif
}		}

#if defined(USERBOOT_ZFS_SUPPORT)		#if defined(USERBOOT_ZFS_SUPPORT)
static void		static void
userboot_zfs_probe(void)		userboot_zfs_probe(void)
{		{
char devname[32];		char devname[32];
uint64_t pool_guid;		uint64_t pool_guid;
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