diff options
Diffstat (limited to 'lib/uuid.c')
| -rw-r--r-- | lib/uuid.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/lib/uuid.c b/lib/uuid.c index 44d0c932ac5..f32b6023164 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -4,6 +4,7 @@ * SPDX-License-Identifier: GPL-2.0+ */ +#include <common.h> #include <linux/ctype.h> #include <errno.h> #include <common.h> @@ -171,7 +172,7 @@ void uuid_bin_to_str(unsigned char *uuid_bin, char *uuid_str, int str_format) * * @param uuid_bin - pointer to allocated array [16B]. Output is in big endian. */ -#ifdef CONFIG_RANDOM_UUID +#if defined(CONFIG_RANDOM_UUID) || defined(CONFIG_CMD_UUID) void gen_rand_uuid(unsigned char *uuid_bin) { struct uuid uuid; @@ -210,4 +211,45 @@ void gen_rand_uuid_str(char *uuid_str, int str_format) /* Convert UUID bin to UUID or GUID formated STRING */ uuid_bin_to_str(uuid_bin, uuid_str, str_format); } + +#ifdef CONFIG_CMD_UUID +int do_uuid(cmd_tbl_t *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 + setenv(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 #endif |