efi_driver: fix error handling
[platform/kernel/u-boot.git] / lib / uuid.c
index e62d5ca..465e1ac 100644 (file)
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <efi_api.h>
 #include <env.h>
 #include <rand.h>
 #include <time.h>
@@ -15,6 +16,8 @@
 #include <asm/io.h>
 #include <part_efi.h>
 #include <malloc.h>
+#include <dm/uclass.h>
+#include <rng.h>
 
 /*
  * UUID - Universally Unique IDentifier - 128 bits unique number.
@@ -84,11 +87,11 @@ int uuid_str_valid(const char *uuid)
        return 1;
 }
 
-#ifdef CONFIG_PARTITION_TYPE_GUID
 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},
@@ -96,7 +99,162 @@ static const struct {
        {"linux",       PARTITION_LINUX_FILE_SYSTEM_DATA_GUID},
        {"raid",        PARTITION_LINUX_RAID_GUID},
        {"swap",        PARTITION_LINUX_SWAP_GUID},
-       {"lvm",         PARTITION_LINUX_LVM_GUID}
+       {"lvm",         PARTITION_LINUX_LVM_GUID},
+       {"u-boot-env",  PARTITION_U_BOOT_ENVIRONMENT},
+#endif
+#ifdef CONFIG_CMD_EFIDEBUG
+       {
+               "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,
+       },
+       {
+               "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
 };
 
 /*
@@ -122,22 +280,20 @@ int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin)
  * uuid_guid_get_str() - this function get string for GUID.
  *
  * @param guid_bin - pointer to string with partition type guid [16B]
- * @param guid_str - pointer to allocated partition type string [7B]
+ *
+ * Returns NULL if the type GUID is not known.
  */
-int uuid_guid_get_str(const unsigned char *guid_bin, char *guid_str)
+const char *uuid_guid_get_str(const unsigned char *guid_bin)
 {
        int i;
 
-       *guid_str = 0;
        for (i = 0; i < ARRAY_SIZE(list_guid); i++) {
                if (!memcmp(list_guid[i].guid.b, guid_bin, 16)) {
-                       strcpy(guid_str, list_guid[i].string);
-                       return 0;
+                       return list_guid[i].string;
                }
        }
-       return -ENODEV;
+       return NULL;
 }
-#endif
 
 /*
  * uuid_str_to_bin() - convert string UUID or GUID to big endian binary data.
@@ -162,26 +318,26 @@ int uuid_str_to_bin(const char *uuid_str, unsigned char *uuid_bin,
        }
 
        if (str_format == UUID_STR_FORMAT_STD) {
-               tmp32 = cpu_to_be32(simple_strtoul(uuid_str, NULL, 16));
+               tmp32 = cpu_to_be32(hextoul(uuid_str, NULL));
                memcpy(uuid_bin, &tmp32, 4);
 
-               tmp16 = cpu_to_be16(simple_strtoul(uuid_str + 9, NULL, 16));
+               tmp16 = cpu_to_be16(hextoul(uuid_str + 9, NULL));
                memcpy(uuid_bin + 4, &tmp16, 2);
 
-               tmp16 = cpu_to_be16(simple_strtoul(uuid_str + 14, NULL, 16));
+               tmp16 = cpu_to_be16(hextoul(uuid_str + 14, NULL));
                memcpy(uuid_bin + 6, &tmp16, 2);
        } else {
-               tmp32 = cpu_to_le32(simple_strtoul(uuid_str, NULL, 16));
+               tmp32 = cpu_to_le32(hextoul(uuid_str, NULL));
                memcpy(uuid_bin, &tmp32, 4);
 
-               tmp16 = cpu_to_le16(simple_strtoul(uuid_str + 9, NULL, 16));
+               tmp16 = cpu_to_le16(hextoul(uuid_str + 9, NULL));
                memcpy(uuid_bin + 4, &tmp16, 2);
 
-               tmp16 = cpu_to_le16(simple_strtoul(uuid_str + 14, NULL, 16));
+               tmp16 = cpu_to_le16(hextoul(uuid_str + 14, NULL));
                memcpy(uuid_bin + 6, &tmp16, 2);
        }
 
-       tmp16 = cpu_to_be16(simple_strtoul(uuid_str + 19, NULL, 16));
+       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));
@@ -249,9 +405,22 @@ void gen_rand_uuid(unsigned char *uuid_bin)
 {
        u32 ptr[4];
        struct uuid *uuid = (struct uuid *)ptr;
-       int i;
-
-       srand(get_ticks() + rand());
+       int i, ret;
+       struct udevice *devp;
+       u32 randv = 0;
+
+       if (IS_ENABLED(CONFIG_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++)