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| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2014-04-02 10:20:04 +0200 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-04-02 16:35:53 -0400 |
| commit | 4e4815feae4d37032a7afce18a4c26074c51f159 (patch) | |
| tree | 41f1273b4a7cf133d7dc33aeb0759959bf353286 /include/config_fallbacks.h | |
| parent | d718ded056eefb6239bd2e0a57b7f6d99c6e9e4b (diff) | |
| download | u-boot-imx-4e4815feae4d37032a7afce18a4c26074c51f159.zip u-boot-imx-4e4815feae4d37032a7afce18a4c26074c51f159.tar.gz u-boot-imx-4e4815feae4d37032a7afce18a4c26074c51f159.tar.bz2 | |
lib: uuid: add functions to generate UUID version 4
This patch adds support to generate UUID (Universally Unique Identifier)
in version 4 based on RFC4122, which is randomly.
Source: https://www.ietf.org/rfc/rfc4122.txt
Changes:
- new configs:
- CONFIG_LIB_UUID for compile lib/uuid.c
- CONFIG_RANDOM_UUID for functions gen_rand_uuid() and gen_rand_uuid_str()
- add configs dependency to include/config_fallbacks.h for lib uuid.
lib/uuid.c:
- add gen_rand_uuid() - this function writes 16 bytes len binary representation
of UUID v4 to the memory at given address.
- add gen_rand_uuid_str() - this function writes 37 bytes len hexadecimal
ASCII string representation of UUID v4 to the memory at given address.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
[trini: Add CONFIG_EFI_PARTITION to fallbacks]
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'include/config_fallbacks.h')
| -rw-r--r-- | include/config_fallbacks.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/config_fallbacks.h b/include/config_fallbacks.h index d8339b2..c6b20fd 100644 --- a/include/config_fallbacks.h +++ b/include/config_fallbacks.h @@ -55,6 +55,20 @@ #define HAVE_BLOCK_DEVICE #endif +#if (defined(CONFIG_PARTITION_UUIDS) || \ + defined(CONFIG_EFI_PARTITION) || \ + defined(CONFIG_RANDOM_UUID) || \ + defined(CONFIG_BOOTP_PXE)) && \ + !defined(CONFIG_LIB_UUID) +#define CONFIG_LIB_UUID +#endif + +#if defined(CONFIG_RANDOM_UUID) && \ + !defined(CONFIG_LIB_RAND) && \ + !defined(CONFIG_LIB_HW_RAND) +#define CONFIG_LIB_RAND +#endif + #ifndef CONFIG_SYS_PROMPT #define CONFIG_SYS_PROMPT "=> " #endif |