From 89c8230dec063d894aec1a7b5c58f1dcadced738 Mon Sep 17 00:00:00 2001
From: Przemyslaw Marczak
Date: Wed, 2 Apr 2014 10:20:05 +0200
Subject: new commands: uuid and guid - generate random unique identifier
Those commands basis on implementation of random UUID generator version 4
which is described in RFC4122. The same algorithm is used for generation
both ids but string representation is different as below.
char: 0 9 14 19 24 36
xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
UUID: be be be be be
GUID: le le le be be
Commands usage:
- uuid []
- guid []
The result is saved in environment as a "varname" variable if argument is given,
if not then it is printed.
New config:
- CONFIG_CMD_UUID
Signed-off-by: Przemyslaw Marczak
Cc: Stephen Warren
Cc: Lukasz Majewski
Cc: trini@ti.com
---
include/config_fallbacks.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
(limited to 'include/config_fallbacks.h')
diff --git a/include/config_fallbacks.h b/include/config_fallbacks.h
index c6b20fd297f..e6fb47be0bd 100644
--- a/include/config_fallbacks.h
+++ b/include/config_fallbacks.h
@@ -58,14 +58,16 @@
#if (defined(CONFIG_PARTITION_UUIDS) || \
defined(CONFIG_EFI_PARTITION) || \
defined(CONFIG_RANDOM_UUID) || \
+ defined(CONFIG_CMD_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)
+#if (defined(CONFIG_RANDOM_UUID) || \
+ defined(CONFIG_CMD_UUID)) && \
+ (!defined(CONFIG_LIB_RAND) && \
+ !defined(CONFIG_LIB_HW_RAND))
#define CONFIG_LIB_RAND
#endif
--
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