[PATCH 04/14] Some guid manipulation utilities has been added.

From d2fb127f9af0de29f763d3813f58455c588f26eb Mon Sep 17 00:00:00 2001
From: Przemyslaw Czarnowski
Date: Tue, 8 Mar 2011 13:41:09 +0100
Subject: [PATCH 04/14] Some guid manipulation utilities has been added.

It will be used for reading efi variables with capabilities.

Signed-off-by: Przemyslaw Czarnowski
---
platform-intel.c | 9 +++++++++
platform-intel.h | 15 +++++++++++++++
2 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/platform-intel.c b/platform-intel.c
index 95e3a1a..31d76f1 100644
--- a/platform-intel.c
+++ b/platform-intel.c
@@ -294,6 +294,15 @@ static const struct imsm_orom *find_imsm_hba_orom(enum sys_dev_type hba_id)
return NULL;
}

+#define GUID_STR_MAX 37 /* according to GUID format:
+ * xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" */
+
+#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
+((struct efi_guid) \
+{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+ (b) & 0xff, ((b) >> 8) & 0xff, \
+ (c) & 0xff, ((c) >> 8) & 0xff, \
+ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})

/*
* backward interface compatibility
diff --git a/platform-intel.h b/platform-intel.h
index 549ced5..0cba6c7 100644
--- a/platform-intel.h
+++ b/platform-intel.h
@@ -197,6 +197,21 @@ struct sys_dev {
struct sys_dev *next;
};

+struct efi_guid {
+ __u8 b[16];
+};
+
+static inline char *guid_str(char *buf, struct efi_guid guid)
+{
+ sprintf(buf, "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
+ "%02x%02x-%02x%02x%02x%02x%02x%02x",
+ guid.b[3], guid.b[2], guid.b[1], guid.b[0],
+ guid.b[5], guid.b[4], guid.b[7], guid.b[6],
+ guid.b[8], guid.b[9], guid.b[10], guid.b[11],
+ guid.b[12], guid.b[13], guid.b[14], guid.b[15]);
+ return buf;
+}
+
char *diskfd_to_devpath(int fd);
struct sys_dev *find_driver_devices(const char *bus, const char *driver);
struct sys_dev *find_intel_devices(void);
--
1.6.4.2

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