Represent DHCP "origin" as an enum, not a string.

See IBFT standard for location of "origin" field in iBFT table,
and see MS document: http://msdn.microsoft.com/en-us/library/aa366281.aspx
for description of enums, duplicated here in part:

	typedef enum  {
	  IpPrefixOriginOther                = 0,
	  IpPrefixOriginManual,
	  IpPrefixOriginWellKnown,
	  IpPrefixOriginDhcp,
	  IpPrefixOriginRouterAdvertisement,
	  IpPrefixOriginUnchanged            = 16
	} IP_PREFIX_ORIGIN;

1 files changed, 10 insertions, 1 deletions

diff --git a/include/fw_context.h b/include/fw_context.h
index 295b54d..6a7ec1a 100644
--- a/include/fw_context.h
+++ b/include/fw_context.h
@@ -28,6 +28,15 @@
 #include "list.h"
 #include "auth.h"
 
+enum ibft_ip_prefix_origin {
+	IBFT_IP_PREFIX_ORIGIN_OTHER	= 0,
+	IBFT_IP_PREFIX_ORIGIN_MANUAL,
+	IBFT_IP_PREFIX_ORIGIN_WELL_KNOWN,
+	IBFT_IP_PREFIX_ORIGIN_DHCP,
+	IBFT_IP_PREFIX_ORIGIN_ROUTER_ADVERTISEMENT,
+	IBFT_IP_PREFIX_ORIGIN_UNCHANGED = 16
+};
+
 struct boot_context {
 	struct list_head list;
 	char boot_root[BOOT_NAME_MAXLEN];
@@ -48,7 +57,7 @@ struct boot_context {
 	char initiatorname[TARGET_NAME_MAXLEN + 1];
 
 	/* network settings */
-	char origin[2];
+	enum ibft_ip_prefix_origin origin;
 	char dhcp[NI_MAXHOST];
 	char iface[IF_NAMESIZE];
 	char mac[18];