blob: dabde127b1dcd5882c5db38acc93941e2fb1dfe1 [file] [log] [blame]
/*
* Copyright (c) 2008-2010 Rui Paulo
* Copyright (c) 2006 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/disk.h>
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/boot.h>
#include <stand.h>
#include <inttypes.h>
#include <string.h>
#include <setjmp.h>
#include <disk.h>
#include <efi.h>
#include <efilib.h>
#include <efigpt.h>
#include <uuid.h>
#include <bootstrap.h>
#include <smbios.h>
#include <libzfs.h>
#include <efizfs.h>
#include "loader_efi.h"
struct arch_switch archsw; /* MI/MD interface boundary */
EFI_GUID devid = DEVICE_PATH_PROTOCOL;
EFI_GUID imgid = LOADED_IMAGE_PROTOCOL;
EFI_GUID smbios = SMBIOS_TABLE_GUID;
EFI_GUID smbios3 = SMBIOS3_TABLE_GUID;
EFI_GUID inputid = SIMPLE_TEXT_INPUT_PROTOCOL;
extern void acpi_detect(void);
extern void efi_getsmap(void);
static EFI_LOADED_IMAGE *img;
/*
* Number of seconds to wait for a keystroke before exiting with failure
* in the event no currdev is found. -2 means always break, -1 means
* never break, 0 means poll once and then reboot, > 0 means wait for
* that many seconds. "fail_timeout" can be set in the environment as
* well.
*/
static int fail_timeout = 5;
bool
efi_zfs_is_preferred(EFI_HANDLE *h)
{
EFI_DEVICE_PATH *devpath, *dp, *node;
HARDDRIVE_DEVICE_PATH *hd;
bool ret;
extern UINT64 start_sector; /* from multiboot.S */
/* This check is true for chainloader case. */
if (h == img->DeviceHandle)
return (true);
/*
* Make sure the image was loaded from the hard disk.
*/
devpath = efi_lookup_devpath(img->DeviceHandle);
if (devpath == NULL)
return (false);
node = efi_devpath_last_node(devpath);
if (node == NULL)
return (false);
if (DevicePathType(node) != MEDIA_DEVICE_PATH &&
(DevicePathSubType(node) != MEDIA_FILEPATH_DP ||
DevicePathSubType(node) != MEDIA_HARDDRIVE_DP)) {
return (false);
}
/*
* XXX We ignore the MEDIA_FILEPATH_DP here for now as it is
* used on arm and we do not support arm.
*/
ret = false;
dp = efi_devpath_trim(devpath);
devpath = NULL;
if (dp == NULL)
goto done;
devpath = efi_lookup_devpath(h);
if (devpath == NULL)
goto done;
hd = (HARDDRIVE_DEVICE_PATH *)efi_devpath_last_node(devpath);
if (hd == NULL) {
devpath = NULL;
goto done;
}
devpath = efi_devpath_trim(devpath);
if (devpath == NULL)
goto done;
if (!efi_devpath_match(dp, devpath))
goto done;
/* It is the same disk, do we have partition start? */
if (start_sector == 0)
ret = true;
else if (start_sector == hd->PartitionStart)
ret = true;
done:
free(dp);
free(devpath);
return (ret);
}
static bool
has_keyboard(void)
{
EFI_STATUS status;
EFI_DEVICE_PATH *path;
EFI_HANDLE *hin, *hin_end, *walker;
UINTN sz;
bool retval = false;
/*
* Find all the handles that support the SIMPLE_TEXT_INPUT_PROTOCOL and
* do the typical dance to get the right sized buffer.
*/
sz = 0;
hin = NULL;
status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz, 0);
if (status == EFI_BUFFER_TOO_SMALL) {
hin = (EFI_HANDLE *)malloc(sz);
status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz,
hin);
if (EFI_ERROR(status))
free(hin);
}
if (EFI_ERROR(status))
return (retval);
/*
* Look at each of the handles. If it supports the device path protocol,
* use it to get the device path for this handle. Then see if that
* device path matches either the USB device path for keyboards or the
* legacy device path for keyboards.
*/
hin_end = &hin[sz / sizeof(*hin)];
for (walker = hin; walker < hin_end; walker++) {
status = BS->HandleProtocol(*walker, &devid, (VOID **)&path);
if (EFI_ERROR(status))
continue;
while (!IsDevicePathEnd(path)) {
/*
* Check for the ACPI keyboard node. All PNP3xx nodes
* are keyboards of different flavors. Note: It is
* unclear of there's always a keyboard node when
* there's a keyboard controller, or if there's only one
* when a keyboard is detected at boot.
*/
if (DevicePathType(path) == ACPI_DEVICE_PATH &&
(DevicePathSubType(path) == ACPI_DP ||
DevicePathSubType(path) == ACPI_EXTENDED_DP)) {
ACPI_HID_DEVICE_PATH *acpi;
acpi = (ACPI_HID_DEVICE_PATH *)(void *)path;
if ((EISA_ID_TO_NUM(acpi->HID) & 0xff00) == 0x300 &&
(acpi->HID & 0xffff) == PNP_EISA_ID_CONST) {
retval = true;
goto out;
}
/*
* Check for USB keyboard node, if present. Unlike a
* PS/2 keyboard, these definitely only appear when
* connected to the system.
*/
} else if (DevicePathType(path) == MESSAGING_DEVICE_PATH &&
DevicePathSubType(path) == MSG_USB_CLASS_DP) {
USB_CLASS_DEVICE_PATH *usb;
usb = (USB_CLASS_DEVICE_PATH *)(void *)path;
if (usb->DeviceClass == 3 && /* HID */
usb->DeviceSubClass == 1 && /* Boot devices */
usb->DeviceProtocol == 1) { /* Boot keyboards */
retval = true;
goto out;
}
}
path = NextDevicePathNode(path);
}
}
out:
free(hin);
return (retval);
}
static void
set_currdev_devdesc(struct devdesc *currdev)
{
char *devname;
devname = efi_fmtdev(currdev);
printf("Setting currdev to %s\n", devname);
env_setenv("currdev", EV_VOLATILE, devname, efi_setcurrdev,
env_nounset);
env_setenv("loaddev", EV_VOLATILE, devname, env_noset, env_nounset);
}
static void
set_currdev_devsw(struct devsw *dev, int unit)
{
struct devdesc currdev;
currdev.d_dev = dev;
currdev.d_unit = unit;
set_currdev_devdesc(&currdev);
}
static void
set_currdev_pdinfo(pdinfo_t *dp)
{
/*
* Disks are special: they have partitions. if the parent
* pointer is non-null, we're a partition not a full disk
* and we need to adjust currdev appropriately.
*/
if (dp->pd_devsw->dv_type == DEVT_DISK) {
struct disk_devdesc currdev;
currdev.dd.d_dev = dp->pd_devsw;
if (dp->pd_parent == NULL) {
currdev.dd.d_unit = dp->pd_unit;
currdev.d_slice = -1;
currdev.d_partition = -1;
} else {
currdev.dd.d_unit = dp->pd_parent->pd_unit;
currdev.d_slice = dp->pd_unit;
currdev.d_partition = 255; /* Assumes GPT */
}
set_currdev_devdesc((struct devdesc *)&currdev);
} else {
set_currdev_devsw(dp->pd_devsw, dp->pd_unit);
}
}
static bool
sanity_check_currdev(void)
{
struct stat st;
return (stat("/boot/defaults/loader.conf", &st) == 0);
}
static bool
probe_zfs_currdev(uint64_t guid)
{
struct zfs_devdesc currdev;
currdev.dd.d_dev = &zfs_dev;
currdev.dd.d_unit = 0;
currdev.pool_guid = guid;
currdev.root_guid = 0;
set_currdev_devdesc((struct devdesc *)&currdev);
return (sanity_check_currdev());
}
static bool
try_as_currdev(pdinfo_t *pp)
{
uint64_t guid;
/*
* If there's a zpool on this device, try it as a ZFS
* filesystem, which has somewhat different setup than all
* other types of fs due to imperfect loader integration.
* This all stems from ZFS being both a device (zpool) and
* a filesystem, plus the boot env feature.
*/
if (efizfs_get_guid_by_handle(pp->pd_handle, &guid))
return (probe_zfs_currdev(guid));
/*
* All other filesystems just need the pdinfo
* initialized in the standard way.
*/
set_currdev_pdinfo(pp);
return (sanity_check_currdev());
}
static bool
find_currdev(EFI_LOADED_IMAGE *img)
{
pdinfo_t *dp, *pp;
EFI_DEVICE_PATH *devpath, *copy;
EFI_HANDLE h;
CHAR16 *text;
struct devsw *dev;
int unit;
uint64_t extra;
/*
* Did efi_zfs_probe() detect the boot pool? If so, use the zpool
* it found, if it's sane. ZFS is the only thing that looks for
* disks and pools to boot.
*/
if (pool_guid != 0) {
printf("Trying ZFS pool\n");
if (probe_zfs_currdev(pool_guid))
return (true);
}
/*
* Try to find the block device by its handle based on the
* image we're booting. If we can't find a sane partition,
* search all the other partitions of the disk. We do not
* search other disks because it's a violation of the UEFI
* boot protocol to do so. We fail and let UEFI go on to
* the next candidate.
*/
dp = efiblk_get_pdinfo_by_handle(img->DeviceHandle);
if (dp != NULL) {
text = efi_devpath_name(dp->pd_devpath);
if (text != NULL) {
printf("Trying ESP: %S\n", text);
efi_free_devpath_name(text);
}
set_currdev_pdinfo(dp);
if (sanity_check_currdev())
return (true);
if (dp->pd_parent != NULL) {
dp = dp->pd_parent;
STAILQ_FOREACH(pp, &dp->pd_part, pd_link) {
text = efi_devpath_name(pp->pd_devpath);
if (text != NULL) {
printf("And now the part: %S\n", text);
efi_free_devpath_name(text);
}
/*
* Roll up the ZFS special case
* for those partitions that have
* zpools on them
*/
if (try_as_currdev(pp))
return (true);
}
}
} else {
printf("Can't find device by handle\n");
}
/*
* Try the device handle from our loaded image first. If that
* fails, use the device path from the loaded image and see if
* any of the nodes in that path match one of the enumerated
* handles. Currently, this handle list is only for netboot.
*/
if (efi_handle_lookup(img->DeviceHandle, &dev, &unit, &extra) == 0) {
set_currdev_devsw(dev, unit);
if (sanity_check_currdev())
return (true);
}
copy = NULL;
devpath = efi_lookup_image_devpath(IH);
while (devpath != NULL) {
h = efi_devpath_handle(devpath);
if (h == NULL)
break;
free(copy);
copy = NULL;
if (efi_handle_lookup(h, &dev, &unit, &extra) == 0) {
set_currdev_devsw(dev, unit);
if (sanity_check_currdev())
return (true);
}
devpath = efi_lookup_devpath(h);
if (devpath != NULL) {
copy = efi_devpath_trim(devpath);
devpath = copy;
}
}
free(copy);
return (false);
}
static bool
interactive_interrupt(const char *msg)
{
time_t now, then, last;
last = 0;
now = then = getsecs();
printf("%s\n", msg);
if (fail_timeout == -2) /* Always break to OK */
return (true);
if (fail_timeout == -1) /* Never break to OK */
return (false);
do {
if (last != now) {
printf("press any key to interrupt reboot in %d seconds\r",
fail_timeout - (int)(now - then));
last = now;
}
/* XXX no pause or timeout wait for char */
if (ischar())
return (true);
now = getsecs();
} while (now - then < fail_timeout);
return (false);
}
EFI_STATUS
main(int argc, CHAR16 *argv[])
{
char var[128];
int i, j, howto;
bool vargood;
void *ptr;
bool has_kbd;
char *s;
EFI_DEVICE_PATH *imgpath;
CHAR16 *text;
EFI_STATUS status;
UINT16 boot_current;
size_t sz;
UINT16 boot_order[100];
archsw.arch_autoload = efi_autoload;
archsw.arch_getdev = efi_getdev;
archsw.arch_copyin = efi_copyin;
archsw.arch_copyout = efi_copyout;
archsw.arch_readin = efi_readin;
archsw.arch_loadaddr = efi_loadaddr;
archsw.arch_free_loadaddr = efi_free_loadaddr;
/* Note this needs to be set before ZFS init. */
archsw.arch_zfs_probe = efi_zfs_probe;
/* Get our loaded image protocol interface structure. */
BS->HandleProtocol(IH, &imgid, (VOID**)&img);
/* Init the time source */
efi_time_init();
has_kbd = has_keyboard();
/*
* XXX Chicken-and-egg problem; we want to have console output
* early, but some console attributes may depend on reading from
* eg. the boot device, which we can't do yet. We can use
* printf() etc. once this is done.
*/
cons_probe();
efi_getsmap();
/*
* Initialise the block cache. Set the upper limit.
*/
bcache_init(32768, 512);
/*
* Parse the args to set the console settings, etc
* boot1.efi passes these in, if it can read /boot.config or /boot/config
* or iPXE may be setup to pass these in. Or the optional argument in the
* boot environment was used to pass these arguments in (in which case
* neither /boot.config nor /boot/config are consulted).
*
* Loop through the args, and for each one that contains an '=' that is
* not the first character, add it to the environment. This allows
* loader and kernel env vars to be passed on the command line. Convert
* args from UCS-2 to ASCII (16 to 8 bit) as they are copied (though this
* method is flawed for non-ASCII characters).
*/
howto = 0;
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
for (j = 1; argv[i][j] != 0; j++) {
int ch;
ch = argv[i][j];
switch (ch) {
case 'a':
howto |= RB_ASKNAME;
break;
case 'd':
howto |= RB_KDB;
break;
case 'D':
howto |= RB_MULTIPLE;
break;
case 'h':
howto |= RB_SERIAL;
break;
case 'm':
howto |= RB_MUTE;
break;
case 'p':
howto |= RB_PAUSE;
break;
case 'P':
if (!has_kbd)
howto |= RB_SERIAL | RB_MULTIPLE;
break;
case 'r':
howto |= RB_DFLTROOT;
break;
case 's':
howto |= RB_SINGLE;
break;
case 'S':
if (argv[i][j + 1] == 0) {
if (i + 1 == argc) {
strncpy(var, "115200",
sizeof(var));
} else {
CHAR16 *ptr;
ptr = &argv[i + 1][0];
cpy16to8(ptr, var,
sizeof(var));
}
i++;
} else {
cpy16to8(&argv[i][j + 1], var,
sizeof(var));
}
strncat(var, ",8,n,1,-", sizeof(var));
setenv("ttya-mode", var, 1);
break;
case 'v':
howto |= RB_VERBOSE;
break;
}
}
} else {
vargood = false;
for (j = 0; argv[i][j] != 0; j++) {
if (j == sizeof(var)) {
vargood = false;
break;
}
if (j > 0 && argv[i][j] == '=')
vargood = true;
var[j] = (char)argv[i][j];
}
if (vargood) {
var[j] = 0;
putenv(var);
}
}
}
for (i = 0; howto_names[i].ev != NULL; i++)
if (howto & howto_names[i].mask)
setenv(howto_names[i].ev, "YES", 1);
/*
* XXX we need fallback to this stuff after looking at the ConIn,
* ConOut and ConErr variables.
*/
if (howto & RB_MULTIPLE) {
if (howto & RB_SERIAL)
setenv("console", "ttya text" , 1);
else
setenv("console", "text ttya" , 1);
} else if (howto & RB_SERIAL) {
setenv("console", "ttya" , 1);
} else
setenv("console", "text" , 1);
if ((s = getenv("fail_timeout")) != NULL)
fail_timeout = strtol(s, NULL, 10);
/*
* Scan the BLOCK IO MEDIA handles then
* march through the device switch probing for things.
*/
if ((i = efipart_inithandles()) == 0) {
for (i = 0; devsw[i] != NULL; i++)
if (devsw[i]->dv_init != NULL)
(devsw[i]->dv_init)();
} else
printf("efipart_inithandles failed %d, expect failures", i);
printf("Command line arguments:");
for (i = 0; i < argc; i++) {
printf(" %S", argv[i]);
}
printf("\n");
printf("Image base: 0x%lx\n", (u_long)img->ImageBase);
printf("EFI version: %d.%02d\n", ST->Hdr.Revision >> 16,
ST->Hdr.Revision & 0xffff);
printf("EFI Firmware: %S (rev %d.%02d)\n", ST->FirmwareVendor,
ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff);
printf("\n%s", bootprog_info);
/* Determine the devpath of our image so we can prefer it. */
text = efi_devpath_name(img->FilePath);
if (text != NULL) {
printf(" Load Path: %S\n", text);
efi_setenv_illumos_wcs("LoaderPath", text);
efi_free_devpath_name(text);
}
status = BS->HandleProtocol(img->DeviceHandle, &devid,
(void **)&imgpath);
if (status == EFI_SUCCESS) {
text = efi_devpath_name(imgpath);
if (text != NULL) {
printf(" Load Device: %S\n", text);
efi_setenv_illumos_wcs("LoaderDev", text);
efi_free_devpath_name(text);
}
}
boot_current = 0;
sz = sizeof(boot_current);
efi_global_getenv("BootCurrent", &boot_current, &sz);
printf(" BootCurrent: %04x\n", boot_current);
sz = sizeof(boot_order);
efi_global_getenv("BootOrder", &boot_order, &sz);
printf(" BootOrder:");
for (i = 0; i < sz / sizeof(boot_order[0]); i++)
printf(" %04x%s", boot_order[i],
boot_order[i] == boot_current ? "[*]" : "");
printf("\n");
/*
* Disable the watchdog timer. By default the boot manager sets
* the timer to 5 minutes before invoking a boot option. If we
* want to return to the boot manager, we have to disable the
* watchdog timer and since we're an interactive program, we don't
* want to wait until the user types "quit". The timer may have
* fired by then. We don't care if this fails. It does not prevent
* normal functioning in any way...
*/
BS->SetWatchdogTimer(0, 0, 0, NULL);
/*
* Try and find a good currdev based on the image that was booted.
* It might be desirable here to have a short pause to allow falling
* through to the boot loader instead of returning instantly to follow
* the boot protocol and also allow an escape hatch for users wishing
* to try something different.
*/
if (!find_currdev(img))
if (!interactive_interrupt("Failed to find bootable partition"))
return (EFI_NOT_FOUND);
efi_init_environment();
setenv("ISADIR", "amd64", 1); /* we only build 64bit */
bi_isadir(); /* set ISADIR */
acpi_detect();
if ((ptr = efi_get_table(&smbios3)) == NULL)
ptr = efi_get_table(&smbios);
smbios_detect(ptr);
interact(NULL); /* doesn't return */
return (EFI_SUCCESS); /* keep compiler happy */
}
COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);
static int
command_reboot(int argc __unused, char *argv[] __unused)
{
int i;
for (i = 0; devsw[i] != NULL; ++i)
if (devsw[i]->dv_cleanup != NULL)
(devsw[i]->dv_cleanup)();
RS->ResetSystem(EfiResetCold, EFI_SUCCESS, 0, NULL);
/* NOTREACHED */
return (CMD_ERROR);
}
COMMAND_SET(poweroff, "poweroff", "power off the system", command_poweroff);
static int
command_poweroff(int argc __unused, char *argv[] __unused)
{
int i;
for (i = 0; devsw[i] != NULL; ++i)
if (devsw[i]->dv_cleanup != NULL)
(devsw[i]->dv_cleanup)();
RS->ResetSystem(EfiResetShutdown, EFI_SUCCESS, 0, NULL);
/* NOTREACHED */
return (CMD_ERROR);
}
COMMAND_SET(memmap, "memmap", "print memory map", command_memmap);
static int
command_memmap(int argc __unused, char *argv[] __unused)
{
UINTN sz;
EFI_MEMORY_DESCRIPTOR *map, *p;
UINTN key, dsz;
UINT32 dver;
EFI_STATUS status;
int i, ndesc;
int rv = 0;
char line[80];
sz = 0;
status = BS->GetMemoryMap(&sz, 0, &key, &dsz, &dver);
if (status != EFI_BUFFER_TOO_SMALL) {
printf("Can't determine memory map size\n");
return (CMD_ERROR);
}
map = malloc(sz);
status = BS->GetMemoryMap(&sz, map, &key, &dsz, &dver);
if (EFI_ERROR(status)) {
printf("Can't read memory map\n");
return (CMD_ERROR);
}
ndesc = sz / dsz;
snprintf(line, 80, "%23s %12s %12s %8s %4s\n",
"Type", "Physical", "Virtual", "#Pages", "Attr");
pager_open();
rv = pager_output(line);
if (rv) {
pager_close();
return (CMD_OK);
}
for (i = 0, p = map; i < ndesc;
i++, p = NextMemoryDescriptor(p, dsz)) {
snprintf(line, 80, "%23s %012jx %012jx %08jx ",
efi_memory_type(p->Type), p->PhysicalStart,
p->VirtualStart, p->NumberOfPages);
rv = pager_output(line);
if (rv)
break;
if (p->Attribute & EFI_MEMORY_UC)
printf("UC ");
if (p->Attribute & EFI_MEMORY_WC)
printf("WC ");
if (p->Attribute & EFI_MEMORY_WT)
printf("WT ");
if (p->Attribute & EFI_MEMORY_WB)
printf("WB ");
if (p->Attribute & EFI_MEMORY_UCE)
printf("UCE ");
if (p->Attribute & EFI_MEMORY_WP)
printf("WP ");
if (p->Attribute & EFI_MEMORY_RP)
printf("RP ");
if (p->Attribute & EFI_MEMORY_XP)
printf("XP ");
if (p->Attribute & EFI_MEMORY_NV)
printf("NV ");
if (p->Attribute & EFI_MEMORY_MORE_RELIABLE)
printf("MR ");
if (p->Attribute & EFI_MEMORY_RO)
printf("RO ");
rv = pager_output("\n");
if (rv)
break;
}
pager_close();
return (CMD_OK);
}
COMMAND_SET(configuration, "configuration", "print configuration tables",
command_configuration);
static int
command_configuration(int argc __unused, char *argv[] __unused)
{
UINTN i;
char *name;
printf("NumberOfTableEntries=%lu\n",
(unsigned long)ST->NumberOfTableEntries);
for (i = 0; i < ST->NumberOfTableEntries; i++) {
EFI_GUID *guid;
printf(" ");
guid = &ST->ConfigurationTable[i].VendorGuid;
if (efi_guid_to_name(guid, &name) == true) {
printf(name);
free(name);
} else {
printf("Error while translating UUID to name");
}
printf(" at %p\n", ST->ConfigurationTable[i].VendorTable);
}
return (CMD_OK);
}
COMMAND_SET(mode, "mode", "change or display EFI text modes", command_mode);
static int
command_mode(int argc, char *argv[])
{
UINTN cols, rows;
unsigned int mode;
int i;
char *cp;
char rowenv[8];
EFI_STATUS status;
SIMPLE_TEXT_OUTPUT_INTERFACE *conout;
extern void HO(void);
conout = ST->ConOut;
if (argc > 1) {
mode = strtol(argv[1], &cp, 0);
if (cp[0] != '\0') {
printf("Invalid mode\n");
return (CMD_ERROR);
}
status = conout->QueryMode(conout, mode, &cols, &rows);
if (EFI_ERROR(status)) {
printf("invalid mode %d\n", mode);
return (CMD_ERROR);
}
status = conout->SetMode(conout, mode);
if (EFI_ERROR(status)) {
printf("couldn't set mode %d\n", mode);
return (CMD_ERROR);
}
sprintf(rowenv, "%u", (unsigned)rows);
setenv("LINES", rowenv, 1);
sprintf(rowenv, "%u", (unsigned)cols);
setenv("COLUMNS", rowenv, 1);
HO(); /* set cursor */
return (CMD_OK);
}
printf("Current mode: %d\n", conout->Mode->Mode);
for (i = 0; i <= conout->Mode->MaxMode; i++) {
status = conout->QueryMode(conout, i, &cols, &rows);
if (EFI_ERROR(status))
continue;
printf("Mode %d: %u columns, %u rows\n", i, (unsigned)cols,
(unsigned)rows);
}
if (i != 0)
printf("Select a mode with the command \"mode <number>\"\n");
return (CMD_OK);
}
COMMAND_SET(lsefi, "lsefi", "list EFI handles", command_lsefi);
static int
command_lsefi(int argc __unused, char *argv[] __unused)
{
char *name;
EFI_HANDLE *buffer = NULL;
EFI_HANDLE handle;
UINTN bufsz = 0, i, j;
EFI_STATUS status;
int ret;
status = BS->LocateHandle(AllHandles, NULL, NULL, &bufsz, buffer);
if (status != EFI_BUFFER_TOO_SMALL) {
snprintf(command_errbuf, sizeof (command_errbuf),
"unexpected error: %lld", (long long)status);
return (CMD_ERROR);
}
if ((buffer = malloc(bufsz)) == NULL) {
sprintf(command_errbuf, "out of memory");
return (CMD_ERROR);
}
status = BS->LocateHandle(AllHandles, NULL, NULL, &bufsz, buffer);
if (EFI_ERROR(status)) {
free(buffer);
snprintf(command_errbuf, sizeof (command_errbuf),
"LocateHandle() error: %lld", (long long)status);
return (CMD_ERROR);
}
pager_open();
for (i = 0; i < (bufsz / sizeof (EFI_HANDLE)); i++) {
UINTN nproto = 0;
EFI_GUID **protocols = NULL;
handle = buffer[i];
printf("Handle %p", handle);
if (pager_output("\n"))
break;
/* device path */
status = BS->ProtocolsPerHandle(handle, &protocols, &nproto);
if (EFI_ERROR(status)) {
snprintf(command_errbuf, sizeof (command_errbuf),
"ProtocolsPerHandle() error: %lld",
(long long)status);
continue;
}
for (j = 0; j < nproto; j++) {
if (efi_guid_to_name(protocols[j], &name) == true) {
printf(" %s", name);
free(name);
} else {
printf("Error while translating UUID to name");
}
if ((ret = pager_output("\n")) != 0)
break;
}
BS->FreePool(protocols);
if (ret != 0)
break;
}
pager_close();
free(buffer);
return (CMD_OK);
}
COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset",
command_lszfs);
static int
command_lszfs(int argc, char *argv[])
{
int err;
if (argc != 2) {
command_errmsg = "wrong number of arguments";
return (CMD_ERROR);
}
err = zfs_list(argv[1]);
if (err != 0) {
command_errmsg = strerror(err);
return (CMD_ERROR);
}
return (CMD_OK);
}
#ifdef __FreeBSD__
COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments",
command_reloadbe);
static int
command_reloadbe(int argc, char *argv[])
{
int err;
char *root;
if (argc > 2) {
command_errmsg = "wrong number of arguments";
return (CMD_ERROR);
}
if (argc == 2) {
err = zfs_bootenv(argv[1]);
} else {
root = getenv("zfs_be_root");
if (root == NULL) {
return (CMD_OK);
}
err = zfs_bootenv(root);
}
if (err != 0) {
command_errmsg = strerror(err);
return (CMD_ERROR);
}
return (CMD_OK);
}
#endif /* __FreeBSD__ */
#ifdef LOADER_FDT_SUPPORT
extern int command_fdt_internal(int argc, char *argv[]);
/*
* Since proper fdt command handling function is defined in fdt_loader_cmd.c,
* and declaring it as extern is in contradiction with COMMAND_SET() macro
* (which uses static pointer), we're defining wrapper function, which
* calls the proper fdt handling routine.
*/
static int
command_fdt(int argc, char *argv[])
{
return (command_fdt_internal(argc, argv));
}
COMMAND_SET(fdt, "fdt", "flattened device tree handling", command_fdt);
#endif
/*
* Chain load another efi loader.
*/
static int
command_chain(int argc, char *argv[])
{
EFI_GUID LoadedImageGUID = LOADED_IMAGE_PROTOCOL;
EFI_HANDLE loaderhandle;
EFI_LOADED_IMAGE *loaded_image;
EFI_STATUS status;
struct stat st;
struct devdesc *dev;
char *name, *path;
void *buf;
int fd;
if (argc < 2) {
command_errmsg = "wrong number of arguments";
return (CMD_ERROR);
}
name = argv[1];
if ((fd = open(name, O_RDONLY)) < 0) {
command_errmsg = "no such file";
return (CMD_ERROR);
}
if (fstat(fd, &st) < -1) {
command_errmsg = "stat failed";
close(fd);
return (CMD_ERROR);
}
status = BS->AllocatePool(EfiLoaderCode, (UINTN)st.st_size, &buf);
if (status != EFI_SUCCESS) {
command_errmsg = "failed to allocate buffer";
close(fd);
return (CMD_ERROR);
}
if (read(fd, buf, st.st_size) != st.st_size) {
command_errmsg = "error while reading the file";
(void)BS->FreePool(buf);
close(fd);
return (CMD_ERROR);
}
close(fd);
status = BS->LoadImage(FALSE, IH, NULL, buf, st.st_size, &loaderhandle);
(void)BS->FreePool(buf);
if (status != EFI_SUCCESS) {
command_errmsg = "LoadImage failed";
return (CMD_ERROR);
}
status = BS->HandleProtocol(loaderhandle, &LoadedImageGUID,
(void **)&loaded_image);
if (argc > 2) {
int i, len = 0;
CHAR16 *argp;
for (i = 2; i < argc; i++)
len += strlen(argv[i]) + 1;
len *= sizeof (*argp);
loaded_image->LoadOptions = argp = malloc (len);
if (loaded_image->LoadOptions == NULL) {
(void) BS->UnloadImage(loaded_image);
return (CMD_ERROR);
}
loaded_image->LoadOptionsSize = len;
for (i = 2; i < argc; i++) {
char *ptr = argv[i];
while (*ptr)
*(argp++) = *(ptr++);
*(argp++) = ' ';
}
*(--argv) = 0;
}
if (efi_getdev((void **)&dev, name, (const char **)&path) == 0) {
struct zfs_devdesc *z_dev;
struct disk_devdesc *d_dev;
pdinfo_t *hd, *pd;
switch (dev->d_dev->dv_type) {
case DEVT_ZFS:
z_dev = (struct zfs_devdesc *)dev;
loaded_image->DeviceHandle =
efizfs_get_handle_by_guid(z_dev->pool_guid);
break;
case DEVT_NET:
loaded_image->DeviceHandle =
efi_find_handle(dev->d_dev, dev->d_unit);
break;
default:
hd = efiblk_get_pdinfo(dev);
if (STAILQ_EMPTY(&hd->pd_part)) {
loaded_image->DeviceHandle = hd->pd_handle;
break;
}
d_dev = (struct disk_devdesc *)dev;
STAILQ_FOREACH(pd, &hd->pd_part, pd_link) {
/*
* d_partition should be 255
*/
if (pd->pd_unit == d_dev->d_slice) {
loaded_image->DeviceHandle =
pd->pd_handle;
break;
}
}
break;
}
}
dev_cleanup();
status = BS->StartImage(loaderhandle, NULL, NULL);
if (status != EFI_SUCCESS) {
command_errmsg = "StartImage failed";
free(loaded_image->LoadOptions);
loaded_image->LoadOptions = NULL;
status = BS->UnloadImage(loaded_image);
return (CMD_ERROR);
}
return (CMD_ERROR); /* not reached */
}
COMMAND_SET(chain, "chain", "chain load file", command_chain);