From: Labun, Marcin <Marcin.Labun@intel.com>
Date: Thu, 10 Mar 2011 00:45:15 +0000 (+1100)
Subject: Some guid manipulation utilities has been added.
X-Git-Tag: mdadm-3.2.1~63
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a90147116b680f9d5b93c82c4b96f28a7bf5645;p=thirdparty%2Fmdadm.git

Some guid manipulation utilities has been added.

It will be used for reading efi variables with capabilities.

Signed-off-by: Przemyslaw Czarnowski <przemyslaw.hawrylewicz.czarnowski@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/platform-intel.c b/platform-intel.c
index 08cf4edd..f5f57b79 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 549ced5b..0cba6c74 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);