mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 12:08:19 +00:00
591257b05c
Add SPL variant of DM_RNG so that the DM_RNG can be disabled in SPL if necessary. This may be necessary due to e.g. size constraints of the SPL. Signed-off-by: Marek Vasut <marex@denx.de>
461 lines
9.3 KiB
C
461 lines
9.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2011 Calxeda, Inc.
|
|
* Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
|
|
*
|
|
* Authors:
|
|
* Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
|
|
*/
|
|
|
|
#define LOG_CATEGOT LOGC_CORE
|
|
|
|
#include <command.h>
|
|
#include <efi_api.h>
|
|
#include <env.h>
|
|
#include <rand.h>
|
|
#include <time.h>
|
|
#include <uuid.h>
|
|
#include <linux/ctype.h>
|
|
#include <errno.h>
|
|
#include <asm/io.h>
|
|
#include <part_efi.h>
|
|
#include <malloc.h>
|
|
#include <dm/uclass.h>
|
|
#include <rng.h>
|
|
|
|
int uuid_str_valid(const char *uuid)
|
|
{
|
|
int i, valid;
|
|
|
|
if (uuid == NULL)
|
|
return 0;
|
|
|
|
for (i = 0, valid = 1; uuid[i] && valid; i++) {
|
|
switch (i) {
|
|
case 8: case 13: case 18: case 23:
|
|
valid = (uuid[i] == '-');
|
|
break;
|
|
default:
|
|
valid = isxdigit(uuid[i]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i != UUID_STR_LEN || !valid)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static const struct {
|
|
const char *string;
|
|
efi_guid_t guid;
|
|
} list_guid[] = {
|
|
#ifdef CONFIG_PARTITION_TYPE_GUID
|
|
{"system", PARTITION_SYSTEM_GUID},
|
|
{"mbr", LEGACY_MBR_PARTITION_GUID},
|
|
{"msft", PARTITION_MSFT_RESERVED_GUID},
|
|
{"data", PARTITION_BASIC_DATA_GUID},
|
|
{"linux", PARTITION_LINUX_FILE_SYSTEM_DATA_GUID},
|
|
{"raid", PARTITION_LINUX_RAID_GUID},
|
|
{"swap", PARTITION_LINUX_SWAP_GUID},
|
|
{"lvm", PARTITION_LINUX_LVM_GUID},
|
|
{"u-boot-env", PARTITION_U_BOOT_ENVIRONMENT},
|
|
{"cros-kern", PARTITION_CROS_KERNEL},
|
|
{"cros-root", PARTITION_CROS_ROOT},
|
|
{"cros-fw", PARTITION_CROS_FIRMWARE},
|
|
{"cros-rsrv", PARTITION_CROS_RESERVED},
|
|
#endif
|
|
#if defined(CONFIG_CMD_EFIDEBUG) || defined(CONFIG_EFI)
|
|
{
|
|
"Device Path",
|
|
EFI_DEVICE_PATH_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Device Path To Text",
|
|
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Device Path Utilities",
|
|
EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Unicode Collation 2",
|
|
EFI_UNICODE_COLLATION_PROTOCOL2_GUID,
|
|
},
|
|
{
|
|
"Driver Binding",
|
|
EFI_DRIVER_BINDING_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Simple Text Input",
|
|
EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Simple Text Input Ex",
|
|
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Simple Text Output",
|
|
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Block IO",
|
|
EFI_BLOCK_IO_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Simple File System",
|
|
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Loaded Image",
|
|
EFI_LOADED_IMAGE_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Graphics Output",
|
|
EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"HII String",
|
|
EFI_HII_STRING_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"HII Database",
|
|
EFI_HII_DATABASE_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"HII Config Routing",
|
|
EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Load File2",
|
|
EFI_LOAD_FILE2_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Random Number Generator",
|
|
EFI_RNG_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Simple Network",
|
|
EFI_SIMPLE_NETWORK_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"PXE Base Code",
|
|
EFI_PXE_BASE_CODE_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"Device-Tree Fixup",
|
|
EFI_DT_FIXUP_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"TCG2",
|
|
EFI_TCG2_PROTOCOL_GUID,
|
|
},
|
|
{
|
|
"System Partition",
|
|
PARTITION_SYSTEM_GUID
|
|
},
|
|
{
|
|
"Firmware Management",
|
|
EFI_FIRMWARE_MANAGEMENT_PROTOCOL_GUID
|
|
},
|
|
/* Configuration table GUIDs */
|
|
{
|
|
"ACPI table",
|
|
EFI_ACPI_TABLE_GUID,
|
|
},
|
|
{
|
|
"EFI System Resource Table",
|
|
EFI_SYSTEM_RESOURCE_TABLE_GUID,
|
|
},
|
|
{
|
|
"device tree",
|
|
EFI_FDT_GUID,
|
|
},
|
|
{
|
|
"SMBIOS table",
|
|
SMBIOS_TABLE_GUID,
|
|
},
|
|
{
|
|
"SMBIOS3 table",
|
|
SMBIOS3_TABLE_GUID,
|
|
},
|
|
{
|
|
"Runtime properties",
|
|
EFI_RT_PROPERTIES_TABLE_GUID,
|
|
},
|
|
{
|
|
"TCG2 Final Events Table",
|
|
EFI_TCG2_FINAL_EVENTS_TABLE_GUID,
|
|
},
|
|
{
|
|
"EFI Conformance Profiles Table",
|
|
EFI_CONFORMANCE_PROFILES_TABLE_GUID,
|
|
},
|
|
#ifdef CONFIG_EFI_RISCV_BOOT_PROTOCOL
|
|
{
|
|
"RISC-V Boot",
|
|
RISCV_EFI_BOOT_PROTOCOL_GUID,
|
|
},
|
|
#endif
|
|
#endif /* CONFIG_CMD_EFIDEBUG */
|
|
#ifdef CONFIG_CMD_NVEDIT_EFI
|
|
/* signature database */
|
|
{
|
|
"EFI_GLOBAL_VARIABLE_GUID",
|
|
EFI_GLOBAL_VARIABLE_GUID,
|
|
},
|
|
{
|
|
"EFI_IMAGE_SECURITY_DATABASE_GUID",
|
|
EFI_IMAGE_SECURITY_DATABASE_GUID,
|
|
},
|
|
/* certificate types */
|
|
{
|
|
"EFI_CERT_SHA256_GUID",
|
|
EFI_CERT_SHA256_GUID,
|
|
},
|
|
{
|
|
"EFI_CERT_X509_GUID",
|
|
EFI_CERT_X509_GUID,
|
|
},
|
|
{
|
|
"EFI_CERT_TYPE_PKCS7_GUID",
|
|
EFI_CERT_TYPE_PKCS7_GUID,
|
|
},
|
|
#endif
|
|
#if defined(CONFIG_CMD_EFIDEBUG) || defined(CONFIG_EFI)
|
|
{ "EFI_LZMA_COMPRESSED", EFI_LZMA_COMPRESSED },
|
|
{ "EFI_DXE_SERVICES", EFI_DXE_SERVICES },
|
|
{ "EFI_HOB_LIST", EFI_HOB_LIST },
|
|
{ "EFI_MEMORY_TYPE", EFI_MEMORY_TYPE },
|
|
{ "EFI_MEM_STATUS_CODE_REC", EFI_MEM_STATUS_CODE_REC },
|
|
{ "EFI_GUID_EFI_ACPI1", EFI_GUID_EFI_ACPI1 },
|
|
#endif
|
|
};
|
|
|
|
int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(list_guid); i++) {
|
|
if (!strcmp(list_guid[i].string, guid_str)) {
|
|
memcpy(guid_bin, &list_guid[i].guid, 16);
|
|
return 0;
|
|
}
|
|
}
|
|
return -ENODEV;
|
|
}
|
|
|
|
const char *uuid_guid_get_str(const unsigned char *guid_bin)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(list_guid); i++) {
|
|
if (!memcmp(list_guid[i].guid.b, guid_bin, 16)) {
|
|
return list_guid[i].string;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int uuid_str_to_bin(const char *uuid_str, unsigned char *uuid_bin,
|
|
int str_format)
|
|
{
|
|
uint16_t tmp16;
|
|
uint32_t tmp32;
|
|
uint64_t tmp64;
|
|
|
|
if (!uuid_str_valid(uuid_str)) {
|
|
log_debug("not valid\n");
|
|
#ifdef CONFIG_PARTITION_TYPE_GUID
|
|
if (!uuid_guid_get_bin(uuid_str, uuid_bin))
|
|
return 0;
|
|
#endif
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (str_format == UUID_STR_FORMAT_STD) {
|
|
tmp32 = cpu_to_be32(hextoul(uuid_str, NULL));
|
|
memcpy(uuid_bin, &tmp32, 4);
|
|
|
|
tmp16 = cpu_to_be16(hextoul(uuid_str + 9, NULL));
|
|
memcpy(uuid_bin + 4, &tmp16, 2);
|
|
|
|
tmp16 = cpu_to_be16(hextoul(uuid_str + 14, NULL));
|
|
memcpy(uuid_bin + 6, &tmp16, 2);
|
|
} else {
|
|
tmp32 = cpu_to_le32(hextoul(uuid_str, NULL));
|
|
memcpy(uuid_bin, &tmp32, 4);
|
|
|
|
tmp16 = cpu_to_le16(hextoul(uuid_str + 9, NULL));
|
|
memcpy(uuid_bin + 4, &tmp16, 2);
|
|
|
|
tmp16 = cpu_to_le16(hextoul(uuid_str + 14, NULL));
|
|
memcpy(uuid_bin + 6, &tmp16, 2);
|
|
}
|
|
|
|
tmp16 = cpu_to_be16(hextoul(uuid_str + 19, NULL));
|
|
memcpy(uuid_bin + 8, &tmp16, 2);
|
|
|
|
tmp64 = cpu_to_be64(simple_strtoull(uuid_str + 24, NULL, 16));
|
|
memcpy(uuid_bin + 10, (char *)&tmp64 + 2, 6);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int uuid_str_to_le_bin(const char *uuid_str, unsigned char *uuid_bin)
|
|
{
|
|
u16 tmp16;
|
|
u32 tmp32;
|
|
u64 tmp64;
|
|
|
|
if (!uuid_str_valid(uuid_str) || !uuid_bin)
|
|
return -EINVAL;
|
|
|
|
tmp32 = cpu_to_le32(hextoul(uuid_str, NULL));
|
|
memcpy(uuid_bin, &tmp32, 4);
|
|
|
|
tmp16 = cpu_to_le16(hextoul(uuid_str + 9, NULL));
|
|
memcpy(uuid_bin + 4, &tmp16, 2);
|
|
|
|
tmp16 = cpu_to_le16(hextoul(uuid_str + 14, NULL));
|
|
memcpy(uuid_bin + 6, &tmp16, 2);
|
|
|
|
tmp16 = cpu_to_le16(hextoul(uuid_str + 19, NULL));
|
|
memcpy(uuid_bin + 8, &tmp16, 2);
|
|
|
|
tmp64 = cpu_to_le64(simple_strtoull(uuid_str + 24, NULL, 16));
|
|
memcpy(uuid_bin + 10, &tmp64, 6);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void uuid_bin_to_str(const unsigned char *uuid_bin, char *uuid_str,
|
|
int str_format)
|
|
{
|
|
const u8 uuid_char_order[UUID_BIN_LEN] = {0, 1, 2, 3, 4, 5, 6, 7, 8,
|
|
9, 10, 11, 12, 13, 14, 15};
|
|
const u8 guid_char_order[UUID_BIN_LEN] = {3, 2, 1, 0, 5, 4, 7, 6, 8,
|
|
9, 10, 11, 12, 13, 14, 15};
|
|
const u8 *char_order;
|
|
const char *format;
|
|
int i;
|
|
|
|
/*
|
|
* UUID and GUID bin data - always in big endian:
|
|
* 4B-2B-2B-2B-6B
|
|
* be be be be be
|
|
*/
|
|
if (str_format & UUID_STR_FORMAT_GUID)
|
|
char_order = guid_char_order;
|
|
else
|
|
char_order = uuid_char_order;
|
|
if (str_format & UUID_STR_UPPER_CASE)
|
|
format = "%02X";
|
|
else
|
|
format = "%02x";
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
sprintf(uuid_str, format, uuid_bin[char_order[i]]);
|
|
uuid_str += 2;
|
|
switch (i) {
|
|
case 3:
|
|
case 5:
|
|
case 7:
|
|
case 9:
|
|
*uuid_str++ = '-';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
#if defined(CONFIG_RANDOM_UUID) || defined(CONFIG_CMD_UUID)
|
|
void gen_rand_uuid(unsigned char *uuid_bin)
|
|
{
|
|
u32 ptr[4];
|
|
struct uuid *uuid = (struct uuid *)ptr;
|
|
int i, ret;
|
|
struct udevice *devp;
|
|
u32 randv = 0;
|
|
|
|
if (CONFIG_IS_ENABLED(DM_RNG)) {
|
|
ret = uclass_get_device(UCLASS_RNG, 0, &devp);
|
|
if (!ret) {
|
|
ret = dm_rng_read(devp, &randv, sizeof(randv));
|
|
if (ret < 0)
|
|
randv = 0;
|
|
}
|
|
}
|
|
if (randv)
|
|
srand(randv);
|
|
else
|
|
srand(get_ticks() + rand());
|
|
|
|
/* Set all fields randomly */
|
|
for (i = 0; i < 4; i++)
|
|
ptr[i] = rand();
|
|
|
|
clrsetbits_be16(&uuid->time_hi_and_version,
|
|
UUID_VERSION_MASK,
|
|
UUID_VERSION << UUID_VERSION_SHIFT);
|
|
|
|
clrsetbits_8(&uuid->clock_seq_hi_and_reserved,
|
|
UUID_VARIANT_MASK,
|
|
UUID_VARIANT << UUID_VARIANT_SHIFT);
|
|
|
|
memcpy(uuid_bin, uuid, 16);
|
|
}
|
|
|
|
void gen_rand_uuid_str(char *uuid_str, int str_format)
|
|
{
|
|
unsigned char uuid_bin[UUID_BIN_LEN];
|
|
|
|
/* Generate UUID (big endian) */
|
|
gen_rand_uuid(uuid_bin);
|
|
|
|
/* Convert UUID bin to UUID or GUID formated STRING */
|
|
uuid_bin_to_str(uuid_bin, uuid_str, str_format);
|
|
}
|
|
|
|
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_CMD_UUID)
|
|
int do_uuid(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
char uuid[UUID_STR_LEN + 1];
|
|
int str_format;
|
|
|
|
if (!strcmp(argv[0], "uuid"))
|
|
str_format = UUID_STR_FORMAT_STD;
|
|
else
|
|
str_format = UUID_STR_FORMAT_GUID;
|
|
|
|
if (argc > 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
gen_rand_uuid_str(uuid, str_format);
|
|
|
|
if (argc == 1)
|
|
printf("%s\n", uuid);
|
|
else
|
|
env_set(argv[1], uuid);
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
U_BOOT_CMD(uuid, CONFIG_SYS_MAXARGS, 1, do_uuid,
|
|
"UUID - generate random Universally Unique Identifier",
|
|
"[<varname>]\n"
|
|
"Argument:\n"
|
|
"varname: for set result in a environment variable\n"
|
|
"e.g. uuid uuid_env"
|
|
);
|
|
|
|
U_BOOT_CMD(guid, CONFIG_SYS_MAXARGS, 1, do_uuid,
|
|
"GUID - generate Globally Unique Identifier based on random UUID",
|
|
"[<varname>]\n"
|
|
"Argument:\n"
|
|
"varname: for set result in a environment variable\n"
|
|
"e.g. guid guid_env"
|
|
);
|
|
#endif /* CONFIG_CMD_UUID */
|
|
#endif /* CONFIG_RANDOM_UUID || CONFIG_CMD_UUID */
|