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grub/grub-core/kern/efi/efi.c
Colin Watson 25850cfd50 Don't allow insmod when secure boot is enabled. 
Hi,

Fedora's patch to forbid insmod in UEFI Secure Boot environments is fine
as far as it goes.  However, the insmod command is not the only way that
modules can be loaded.  In particular, the 'normal' command, which
implements the usual GRUB menu and the fully-featured command prompt,
will implicitly load commands not currently loaded into memory.  This
permits trivial Secure Boot violations by writing commands implementing
whatever you want to do and pointing $prefix at the malicious code.

I'm currently test-building this patch (replacing your current
grub-2.00-no-insmod-on-sb.patch), but this should be more correct.  It
moves the check into grub_dl_load_file.
2015-04-22 12:47:49 -07:00

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/* efi.c - generic EFI support */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/misc.h>
#include <grub/charset.h>
#include <grub/efi/api.h>
#include <grub/efi/efi.h>
#include <grub/efi/console_control.h>
#include <grub/efi/pe32.h>
#include <grub/time.h>
#include <grub/term.h>
#include <grub/kernel.h>
#include <grub/mm.h>
/* The handle of GRUB itself. Filled in by the startup code. */
grub_efi_handle_t grub_efi_image_handle;
/* The pointer to a system table. Filled in by the startup code. */
grub_efi_system_table_t *grub_efi_system_table;
static grub_efi_guid_t console_control_guid = GRUB_EFI_CONSOLE_CONTROL_GUID;
static grub_efi_guid_t loaded_image_guid = GRUB_EFI_LOADED_IMAGE_GUID;
static grub_efi_guid_t device_path_guid = GRUB_EFI_DEVICE_PATH_GUID;
void *
grub_efi_locate_protocol (grub_efi_guid_t *protocol, void *registration)
{
void *interface;
grub_efi_status_t status;
status = efi_call_3 (grub_efi_system_table->boot_services->locate_protocol,
protocol, registration, &interface);
if (status != GRUB_EFI_SUCCESS)
return 0;
return interface;
}
/* Return the array of handles which meet the requirement. If successful,
the number of handles is stored in NUM_HANDLES. The array is allocated
from the heap. */
grub_efi_handle_t *
grub_efi_locate_handle (grub_efi_locate_search_type_t search_type,
grub_efi_guid_t *protocol,
void *search_key,
grub_efi_uintn_t *num_handles)
{
grub_efi_boot_services_t *b;
grub_efi_status_t status;
grub_efi_handle_t *buffer;
grub_efi_uintn_t buffer_size = 8 * sizeof (grub_efi_handle_t);
buffer = grub_malloc (buffer_size);
if (! buffer)
return 0;
b = grub_efi_system_table->boot_services;
status = efi_call_5 (b->locate_handle, search_type, protocol, search_key,
&buffer_size, buffer);
if (status == GRUB_EFI_BUFFER_TOO_SMALL)
{
grub_free (buffer);
buffer = grub_malloc (buffer_size);
if (! buffer)
return 0;
status = efi_call_5 (b->locate_handle, search_type, protocol, search_key,
&buffer_size, buffer);
}
if (status != GRUB_EFI_SUCCESS)
{
grub_free (buffer);
return 0;
}
*num_handles = buffer_size / sizeof (grub_efi_handle_t);
return buffer;
}
void *
grub_efi_open_protocol (grub_efi_handle_t handle,
grub_efi_guid_t *protocol,
grub_efi_uint32_t attributes)
{
grub_efi_boot_services_t *b;
grub_efi_status_t status;
void *interface;
b = grub_efi_system_table->boot_services;
status = efi_call_6 (b->open_protocol, handle,
protocol,
&interface,
grub_efi_image_handle,
0,
attributes);
if (status != GRUB_EFI_SUCCESS)
return 0;
return interface;
}
int
grub_efi_set_text_mode (int on)
{
grub_efi_console_control_protocol_t *c;
grub_efi_screen_mode_t mode, new_mode;
c = grub_efi_locate_protocol (&console_control_guid, 0);
if (! c)
/* No console control protocol instance available, assume it is
already in text mode. */
return 1;
if (efi_call_4 (c->get_mode, c, &mode, 0, 0) != GRUB_EFI_SUCCESS)
return 0;
new_mode = on ? GRUB_EFI_SCREEN_TEXT : GRUB_EFI_SCREEN_GRAPHICS;
if (mode != new_mode)
if (efi_call_2 (c->set_mode, c, new_mode) != GRUB_EFI_SUCCESS)
return 0;
return 1;
}
void
grub_efi_stall (grub_efi_uintn_t microseconds)
{
efi_call_1 (grub_efi_system_table->boot_services->stall, microseconds);
}
grub_efi_loaded_image_t *
grub_efi_get_loaded_image (grub_efi_handle_t image_handle)
{
return grub_efi_open_protocol (image_handle,
&loaded_image_guid,
GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
}
void
grub_exit (void)
{
grub_efi_fini ();
efi_call_4 (grub_efi_system_table->boot_services->exit,
grub_efi_image_handle, GRUB_EFI_SUCCESS, 0, 0);
for (;;) ;
}
grub_err_t
grub_efi_set_virtual_address_map (grub_efi_uintn_t memory_map_size,
grub_efi_uintn_t descriptor_size,
grub_efi_uint32_t descriptor_version,
grub_efi_memory_descriptor_t *virtual_map)
{
grub_efi_runtime_services_t *r;
grub_efi_status_t status;
r = grub_efi_system_table->runtime_services;
status = efi_call_4 (r->set_virtual_address_map, memory_map_size,
descriptor_size, descriptor_version, virtual_map);
if (status == GRUB_EFI_SUCCESS)
return GRUB_ERR_NONE;
return grub_error (GRUB_ERR_IO, "set_virtual_address_map failed");
}
grub_err_t
grub_efi_set_variable(const char *var, const grub_efi_guid_t *guid,
void *data, grub_size_t datasize)
{
grub_efi_status_t status;
grub_efi_runtime_services_t *r;
grub_efi_char16_t *var16;
grub_size_t len, len16;
len = grub_strlen (var);
len16 = len * GRUB_MAX_UTF16_PER_UTF8;
var16 = grub_malloc ((len16 + 1) * sizeof (var16[0]));
if (!var16)
return grub_errno;
len16 = grub_utf8_to_utf16 (var16, len16, (grub_uint8_t *) var, len, NULL);
var16[len16] = 0;
r = grub_efi_system_table->runtime_services;
status = efi_call_5 (r->set_variable, var16, guid,
(GRUB_EFI_VARIABLE_NON_VOLATILE
| GRUB_EFI_VARIABLE_BOOTSERVICE_ACCESS
| GRUB_EFI_VARIABLE_RUNTIME_ACCESS),
datasize, data);
if (status == GRUB_EFI_SUCCESS)
return GRUB_ERR_NONE;
return grub_error (GRUB_ERR_IO, "could not set EFI variable `%s'", var);
}
void *
grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid,
grub_size_t *datasize_out)
{
grub_efi_status_t status;
grub_efi_uintn_t datasize = 0;
grub_efi_runtime_services_t *r;
grub_efi_char16_t *var16;
void *data;
grub_size_t len, len16;
*datasize_out = 0;
len = grub_strlen (var);
len16 = len * GRUB_MAX_UTF16_PER_UTF8;
var16 = grub_malloc ((len16 + 1) * sizeof (var16[0]));
if (!var16)
return NULL;
len16 = grub_utf8_to_utf16 (var16, len16, (grub_uint8_t *) var, len, NULL);
var16[len16] = 0;
r = grub_efi_system_table->runtime_services;
status = efi_call_5 (r->get_variable, var16, guid, NULL, &datasize, NULL);
if (!datasize)
return NULL;
data = grub_malloc (datasize);
if (!data)
{
grub_free (var16);
return NULL;
}
status = efi_call_5 (r->get_variable, var16, guid, NULL, &datasize, data);
grub_free (var16);
if (status == GRUB_EFI_SUCCESS)
{
*datasize_out = datasize;
return data;
}
grub_free (data);
return NULL;
}
grub_efi_boolean_t
grub_efi_secure_boot (void)
{
grub_efi_guid_t efi_var_guid = GRUB_EFI_GLOBAL_VARIABLE_GUID;
grub_size_t datasize;
char *secure_boot = NULL;
char *setup_mode = NULL;
grub_efi_boolean_t ret = 0;
secure_boot = grub_efi_get_variable("SecureBoot", &efi_var_guid, &datasize);
if (datasize != 1 || !secure_boot)
goto out;
setup_mode = grub_efi_get_variable("SetupMode", &efi_var_guid, &datasize);
if (datasize != 1 || !setup_mode)
goto out;
if (*secure_boot && !*setup_mode)
ret = 1;
out:
grub_free (secure_boot);
grub_free (setup_mode);
return ret;
}
#pragma GCC diagnostic ignored "-Wcast-align"
/* Search the mods section from the PE32/PE32+ image. This code uses
a PE32 header, but should work with PE32+ as well. */
grub_addr_t
grub_efi_modules_addr (void)
{
grub_efi_loaded_image_t *image;
struct grub_pe32_header *header;
struct grub_pe32_coff_header *coff_header;
struct grub_pe32_section_table *sections;
struct grub_pe32_section_table *section;
struct grub_module_info *info;
grub_uint16_t i;
image = grub_efi_get_loaded_image (grub_efi_image_handle);
if (! image)
return 0;
header = image->image_base;
coff_header = &(header->coff_header);
sections
= (struct grub_pe32_section_table *) ((char *) coff_header
+ sizeof (*coff_header)
+ coff_header->optional_header_size);
for (i = 0, section = sections;
i < coff_header->num_sections;
i++, section++)
{
if (grub_strcmp (section->name, "mods") == 0)
break;
}
if (i == coff_header->num_sections)
return 0;
info = (struct grub_module_info *) ((char *) image->image_base
+ section->virtual_address);
if (info->magic != GRUB_MODULE_MAGIC)
return 0;
return (grub_addr_t) info;
}
#pragma GCC diagnostic error "-Wcast-align"
char *
grub_efi_get_filename (grub_efi_device_path_t *dp0)
{
char *name = 0, *p, *pi;
grub_size_t filesize = 0;
grub_efi_device_path_t *dp;
dp = dp0;
while (1)
{
grub_efi_uint8_t type = GRUB_EFI_DEVICE_PATH_TYPE (dp);
grub_efi_uint8_t subtype = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp);
if (type == GRUB_EFI_END_DEVICE_PATH_TYPE)
break;
if (type == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE
&& subtype == GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE)
{
grub_efi_uint16_t len;
len = ((GRUB_EFI_DEVICE_PATH_LENGTH (dp) - 4)
/ sizeof (grub_efi_char16_t));
filesize += GRUB_MAX_UTF8_PER_UTF16 * len + 2;
}
dp = GRUB_EFI_NEXT_DEVICE_PATH (dp);
}
if (!filesize)
return NULL;
dp = dp0;
p = name = grub_malloc (filesize);
if (!name)
return NULL;
while (1)
{
grub_efi_uint8_t type = GRUB_EFI_DEVICE_PATH_TYPE (dp);
grub_efi_uint8_t subtype = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp);
if (type == GRUB_EFI_END_DEVICE_PATH_TYPE)
break;
else if (type == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE
&& subtype == GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE)
{
grub_efi_file_path_device_path_t *fp;
grub_efi_uint16_t len;
*p++ = '/';
len = ((GRUB_EFI_DEVICE_PATH_LENGTH (dp) - 4)
/ sizeof (grub_efi_char16_t));
fp = (grub_efi_file_path_device_path_t *) dp;
p = (char *) grub_utf16_to_utf8 ((unsigned char *) p, fp->path_name, len);
}
dp = GRUB_EFI_NEXT_DEVICE_PATH (dp);
}
*p = '\0';
for (pi = name, p = name; *pi;)
{
/* EFI breaks paths with backslashes. */
if (*pi == '\\' || *pi == '/')
{
*p++ = '/';
while (*pi == '\\' || *pi == '/')
pi++;
continue;
}
*p++ = *pi++;
}
*p = '\0';
return name;
}
grub_efi_device_path_t *
grub_efi_get_device_path (grub_efi_handle_t handle)
{
return grub_efi_open_protocol (handle, &device_path_guid,
GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
}
static void
dump_vendor_path (const char *type, grub_efi_vendor_device_path_t *vendor)
{
grub_uint32_t vendor_data_len = vendor->header.length - sizeof (*vendor);
grub_printf ("/%sVendor(%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x)[%x: ",
type,
(unsigned) vendor->vendor_guid.data1,
(unsigned) vendor->vendor_guid.data2,
(unsigned) vendor->vendor_guid.data3,
(unsigned) vendor->vendor_guid.data4[0],
(unsigned) vendor->vendor_guid.data4[1],
(unsigned) vendor->vendor_guid.data4[2],
(unsigned) vendor->vendor_guid.data4[3],
(unsigned) vendor->vendor_guid.data4[4],
(unsigned) vendor->vendor_guid.data4[5],
(unsigned) vendor->vendor_guid.data4[6],
(unsigned) vendor->vendor_guid.data4[7],
vendor_data_len);
if (vendor->header.length > sizeof (*vendor))
{
grub_uint32_t i;
for (i = 0; i < vendor_data_len; i++)
grub_printf ("%02x ", vendor->vendor_defined_data[i]);
}
grub_printf ("]");
}
/* Print the chain of Device Path nodes. This is mainly for debugging. */
void
grub_efi_print_device_path (grub_efi_device_path_t *dp)
{
while (1)
{
grub_efi_uint8_t type = GRUB_EFI_DEVICE_PATH_TYPE (dp);
grub_efi_uint8_t subtype = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp);
grub_efi_uint16_t len = GRUB_EFI_DEVICE_PATH_LENGTH (dp);
switch (type)
{
case GRUB_EFI_END_DEVICE_PATH_TYPE:
switch (subtype)
{
case GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE:
grub_printf ("/EndEntire\n");
//grub_putchar ('\n');
break;
case GRUB_EFI_END_THIS_DEVICE_PATH_SUBTYPE:
grub_printf ("/EndThis\n");
//grub_putchar ('\n');
break;
default:
grub_printf ("/EndUnknown(%x)\n", (unsigned) subtype);
break;
}
break;
case GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE:
switch (subtype)
{
case GRUB_EFI_PCI_DEVICE_PATH_SUBTYPE:
{
grub_efi_pci_device_path_t *pci
= (grub_efi_pci_device_path_t *) dp;
grub_printf ("/PCI(%x,%x)",
(unsigned) pci->function, (unsigned) pci->device);
}
break;
case GRUB_EFI_PCCARD_DEVICE_PATH_SUBTYPE:
{
grub_efi_pccard_device_path_t *pccard
= (grub_efi_pccard_device_path_t *) dp;
grub_printf ("/PCCARD(%x)",
(unsigned) pccard->function);
}
break;
case GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE:
{
grub_efi_memory_mapped_device_path_t *mmapped
= (grub_efi_memory_mapped_device_path_t *) dp;
grub_printf ("/MMap(%x,%llx,%llx)",
(unsigned) mmapped->memory_type,
(unsigned long long) mmapped->start_address,
(unsigned long long) mmapped->end_address);
}
break;
case GRUB_EFI_VENDOR_DEVICE_PATH_SUBTYPE:
dump_vendor_path ("Hardware",
(grub_efi_vendor_device_path_t *) dp);
break;
case GRUB_EFI_CONTROLLER_DEVICE_PATH_SUBTYPE:
{
grub_efi_controller_device_path_t *controller
= (grub_efi_controller_device_path_t *) dp;
grub_printf ("/Ctrl(%x)",
(unsigned) controller->controller_number);
}
break;
default:
grub_printf ("/UnknownHW(%x)", (unsigned) subtype);
break;
}
break;
case GRUB_EFI_ACPI_DEVICE_PATH_TYPE:
switch (subtype)
{
case GRUB_EFI_ACPI_DEVICE_PATH_SUBTYPE:
{
grub_efi_acpi_device_path_t *acpi
= (grub_efi_acpi_device_path_t *) dp;
grub_printf ("/ACPI(%x,%x)",
(unsigned) acpi->hid,
(unsigned) acpi->uid);
}
break;
case GRUB_EFI_EXPANDED_ACPI_DEVICE_PATH_SUBTYPE:
{
grub_efi_expanded_acpi_device_path_t *eacpi
= (grub_efi_expanded_acpi_device_path_t *) dp;
grub_printf ("/ACPI(");
if (GRUB_EFI_EXPANDED_ACPI_HIDSTR (dp)[0] == '\0')
grub_printf ("%x,", (unsigned) eacpi->hid);
else
grub_printf ("%s,", GRUB_EFI_EXPANDED_ACPI_HIDSTR (dp));
if (GRUB_EFI_EXPANDED_ACPI_UIDSTR (dp)[0] == '\0')
grub_printf ("%x,", (unsigned) eacpi->uid);
else
grub_printf ("%s,", GRUB_EFI_EXPANDED_ACPI_UIDSTR (dp));
if (GRUB_EFI_EXPANDED_ACPI_CIDSTR (dp)[0] == '\0')
grub_printf ("%x)", (unsigned) eacpi->cid);
else
grub_printf ("%s)", GRUB_EFI_EXPANDED_ACPI_CIDSTR (dp));
}
break;
default:
grub_printf ("/UnknownACPI(%x)", (unsigned) subtype);
break;
}
break;
case GRUB_EFI_MESSAGING_DEVICE_PATH_TYPE:
switch (subtype)
{
case GRUB_EFI_ATAPI_DEVICE_PATH_SUBTYPE:
{
grub_efi_atapi_device_path_t *atapi
= (grub_efi_atapi_device_path_t *) dp;
grub_printf ("/ATAPI(%x,%x,%x)",
(unsigned) atapi->primary_secondary,
(unsigned) atapi->slave_master,
(unsigned) atapi->lun);
}
break;
case GRUB_EFI_SCSI_DEVICE_PATH_SUBTYPE:
{
grub_efi_scsi_device_path_t *scsi
= (grub_efi_scsi_device_path_t *) dp;
grub_printf ("/SCSI(%x,%x)",
(unsigned) scsi->pun,
(unsigned) scsi->lun);
}
break;
case GRUB_EFI_FIBRE_CHANNEL_DEVICE_PATH_SUBTYPE:
{
grub_efi_fibre_channel_device_path_t *fc
= (grub_efi_fibre_channel_device_path_t *) dp;
grub_printf ("/FibreChannel(%llx,%llx)",
(unsigned long long) fc->wwn,
(unsigned long long) fc->lun);
}
break;
case GRUB_EFI_1394_DEVICE_PATH_SUBTYPE:
{
grub_efi_1394_device_path_t *firewire
= (grub_efi_1394_device_path_t *) dp;
grub_printf ("/1394(%llx)",
(unsigned long long) firewire->guid);
}
break;
case GRUB_EFI_USB_DEVICE_PATH_SUBTYPE:
{
grub_efi_usb_device_path_t *usb
= (grub_efi_usb_device_path_t *) dp;
grub_printf ("/USB(%x,%x)",
(unsigned) usb->parent_port_number,
(unsigned) usb->usb_interface);
}
break;
case GRUB_EFI_USB_CLASS_DEVICE_PATH_SUBTYPE:
{
grub_efi_usb_class_device_path_t *usb_class
= (grub_efi_usb_class_device_path_t *) dp;
grub_printf ("/USBClass(%x,%x,%x,%x,%x)",
(unsigned) usb_class->vendor_id,
(unsigned) usb_class->product_id,
(unsigned) usb_class->device_class,
(unsigned) usb_class->device_subclass,
(unsigned) usb_class->device_protocol);
}
break;
case GRUB_EFI_I2O_DEVICE_PATH_SUBTYPE:
{
grub_efi_i2o_device_path_t *i2o
= (grub_efi_i2o_device_path_t *) dp;
grub_printf ("/I2O(%x)", (unsigned) i2o->tid);
}
break;
case GRUB_EFI_MAC_ADDRESS_DEVICE_PATH_SUBTYPE:
{
grub_efi_mac_address_device_path_t *mac
= (grub_efi_mac_address_device_path_t *) dp;
grub_printf ("/MacAddr(%02x:%02x:%02x:%02x:%02x:%02x,%x)",
(unsigned) mac->mac_address[0],
(unsigned) mac->mac_address[1],
(unsigned) mac->mac_address[2],
(unsigned) mac->mac_address[3],
(unsigned) mac->mac_address[4],
(unsigned) mac->mac_address[5],
(unsigned) mac->if_type);
}
break;
case GRUB_EFI_IPV4_DEVICE_PATH_SUBTYPE:
{
grub_efi_ipv4_device_path_t *ipv4
= (grub_efi_ipv4_device_path_t *) dp;
grub_printf ("/IPv4(%u.%u.%u.%u,%u.%u.%u.%u,%u,%u,%x,%x)",
(unsigned) ipv4->local_ip_address[0],
(unsigned) ipv4->local_ip_address[1],
(unsigned) ipv4->local_ip_address[2],
(unsigned) ipv4->local_ip_address[3],
(unsigned) ipv4->remote_ip_address[0],
(unsigned) ipv4->remote_ip_address[1],
(unsigned) ipv4->remote_ip_address[2],
(unsigned) ipv4->remote_ip_address[3],
(unsigned) ipv4->local_port,
(unsigned) ipv4->remote_port,
(unsigned) ipv4->protocol,
(unsigned) ipv4->static_ip_address);
}
break;
case GRUB_EFI_IPV6_DEVICE_PATH_SUBTYPE:
{
grub_efi_ipv6_device_path_t *ipv6
= (grub_efi_ipv6_device_path_t *) dp;
grub_printf ("/IPv6(%x:%x:%x:%x:%x:%x:%x:%x,%x:%x:%x:%x:%x:%x:%x:%x,%u,%u,%x,%x)",
(unsigned) ipv6->local_ip_address[0],
(unsigned) ipv6->local_ip_address[1],
(unsigned) ipv6->local_ip_address[2],
(unsigned) ipv6->local_ip_address[3],
(unsigned) ipv6->local_ip_address[4],
(unsigned) ipv6->local_ip_address[5],
(unsigned) ipv6->local_ip_address[6],
(unsigned) ipv6->local_ip_address[7],
(unsigned) ipv6->remote_ip_address[0],
(unsigned) ipv6->remote_ip_address[1],
(unsigned) ipv6->remote_ip_address[2],
(unsigned) ipv6->remote_ip_address[3],
(unsigned) ipv6->remote_ip_address[4],
(unsigned) ipv6->remote_ip_address[5],
(unsigned) ipv6->remote_ip_address[6],
(unsigned) ipv6->remote_ip_address[7],
(unsigned) ipv6->local_port,
(unsigned) ipv6->remote_port,
(unsigned) ipv6->protocol,
(unsigned) ipv6->static_ip_address);
}
break;
case GRUB_EFI_INFINIBAND_DEVICE_PATH_SUBTYPE:
{
grub_efi_infiniband_device_path_t *ib
= (grub_efi_infiniband_device_path_t *) dp;
grub_printf ("/InfiniBand(%x,%llx,%llx,%llx)",
(unsigned) ib->port_gid[0], /* XXX */
(unsigned long long) ib->remote_id,
(unsigned long long) ib->target_port_id,
(unsigned long long) ib->device_id);
}
break;
case GRUB_EFI_UART_DEVICE_PATH_SUBTYPE:
{
grub_efi_uart_device_path_t *uart
= (grub_efi_uart_device_path_t *) dp;
grub_printf ("/UART(%llu,%u,%x,%x)",
(unsigned long long) uart->baud_rate,
uart->data_bits,
uart->parity,
uart->stop_bits);
}
break;
case GRUB_EFI_SATA_DEVICE_PATH_SUBTYPE:
{
grub_efi_sata_device_path_t *sata;
sata = (grub_efi_sata_device_path_t *) dp;
grub_printf ("/Sata(%x,%x,%x)",
sata->hba_port,
sata->multiplier_port,
sata->lun);
}
break;
case GRUB_EFI_VENDOR_MESSAGING_DEVICE_PATH_SUBTYPE:
dump_vendor_path ("Messaging",
(grub_efi_vendor_device_path_t *) dp);
break;
default:
grub_printf ("/UnknownMessaging(%x)", (unsigned) subtype);
break;
}
break;
case GRUB_EFI_MEDIA_DEVICE_PATH_TYPE:
switch (subtype)
{
case GRUB_EFI_HARD_DRIVE_DEVICE_PATH_SUBTYPE:
{
grub_efi_hard_drive_device_path_t *hd = (grub_efi_hard_drive_device_path_t *) dp;
grub_printf ("/HD(%u,%llx,%llx,%02x%02x%02x%02x%02x%02x%02x%02x,%x,%x)",
hd->partition_number,
(unsigned long long) hd->partition_start,
(unsigned long long) hd->partition_size,
(unsigned) hd->partition_signature[0],
(unsigned) hd->partition_signature[1],
(unsigned) hd->partition_signature[2],
(unsigned) hd->partition_signature[3],
(unsigned) hd->partition_signature[4],
(unsigned) hd->partition_signature[5],
(unsigned) hd->partition_signature[6],
(unsigned) hd->partition_signature[7],
(unsigned) hd->partmap_type,
(unsigned) hd->signature_type);
}
break;
case GRUB_EFI_CDROM_DEVICE_PATH_SUBTYPE:
{
grub_efi_cdrom_device_path_t *cd
= (grub_efi_cdrom_device_path_t *) dp;
grub_printf ("/CD(%u,%llx,%llx)",
cd->boot_entry,
(unsigned long long) cd->partition_start,
(unsigned long long) cd->partition_size);
}
break;
case GRUB_EFI_VENDOR_MEDIA_DEVICE_PATH_SUBTYPE:
dump_vendor_path ("Media",
(grub_efi_vendor_device_path_t *) dp);
break;
case GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE:
{
grub_efi_file_path_device_path_t *fp;
grub_uint8_t *buf;
fp = (grub_efi_file_path_device_path_t *) dp;
buf = grub_malloc ((len - 4) * 2 + 1);
if (buf)
*grub_utf16_to_utf8 (buf, fp->path_name,
(len - 4) / sizeof (grub_efi_char16_t))
= '\0';
else
grub_errno = GRUB_ERR_NONE;
grub_printf ("/File(%s)", buf);
grub_free (buf);
}
break;
case GRUB_EFI_PROTOCOL_DEVICE_PATH_SUBTYPE:
{
grub_efi_protocol_device_path_t *proto
= (grub_efi_protocol_device_path_t *) dp;
grub_printf ("/Protocol(%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x)",
(unsigned) proto->guid.data1,
(unsigned) proto->guid.data2,
(unsigned) proto->guid.data3,
(unsigned) proto->guid.data4[0],
(unsigned) proto->guid.data4[1],
(unsigned) proto->guid.data4[2],
(unsigned) proto->guid.data4[3],
(unsigned) proto->guid.data4[4],
(unsigned) proto->guid.data4[5],
(unsigned) proto->guid.data4[6],
(unsigned) proto->guid.data4[7]);
}
break;
default:
grub_printf ("/UnknownMedia(%x)", (unsigned) subtype);
break;
}
break;
case GRUB_EFI_BIOS_DEVICE_PATH_TYPE:
switch (subtype)
{
case GRUB_EFI_BIOS_DEVICE_PATH_SUBTYPE:
{
grub_efi_bios_device_path_t *bios
= (grub_efi_bios_device_path_t *) dp;
grub_printf ("/BIOS(%x,%x,%s)",
(unsigned) bios->device_type,
(unsigned) bios->status_flags,
(char *) (dp + 1));
}
break;
default:
grub_printf ("/UnknownBIOS(%x)", (unsigned) subtype);
break;
}
break;
default:
grub_printf ("/UnknownType(%x,%x)\n",
(unsigned) type,
(unsigned) subtype);
return;
break;
}
if (GRUB_EFI_END_ENTIRE_DEVICE_PATH (dp))
break;
dp = (grub_efi_device_path_t *) ((char *) dp + len);
}
}
/* Compare device paths. */
int
grub_efi_compare_device_paths (const grub_efi_device_path_t *dp1,
const grub_efi_device_path_t *dp2)
{
if (! dp1 || ! dp2)
/* Return non-zero. */
return 1;
while (1)
{
grub_efi_uint8_t type1, type2;
grub_efi_uint8_t subtype1, subtype2;
grub_efi_uint16_t len1, len2;
int ret;
type1 = GRUB_EFI_DEVICE_PATH_TYPE (dp1);
type2 = GRUB_EFI_DEVICE_PATH_TYPE (dp2);
if (type1 != type2)
return (int) type2 - (int) type1;
subtype1 = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp1);
subtype2 = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp2);
if (subtype1 != subtype2)
return (int) subtype1 - (int) subtype2;
len1 = GRUB_EFI_DEVICE_PATH_LENGTH (dp1);
len2 = GRUB_EFI_DEVICE_PATH_LENGTH (dp2);
if (len1 != len2)
return (int) len1 - (int) len2;
ret = grub_memcmp (dp1, dp2, len1);
if (ret != 0)
return ret;
if (GRUB_EFI_END_ENTIRE_DEVICE_PATH (dp1))
break;
dp1 = (grub_efi_device_path_t *) ((char *) dp1 + len1);
dp2 = (grub_efi_device_path_t *) ((char *) dp2 + len2);
}
return 0;
}
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