From 224529d8ddb6c31bbefa33ba3396ca2471fd5d91 Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Wed, 19 Jul 2006 20:50:50 +0000
Subject: Now capable of sending what, to me, looks like a valid DHCPDISCOVER
 (apart from the bad UDP checksum).

---
 src/include/gpxe/dhcp.h | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'src/include')

diff --git a/src/include/gpxe/dhcp.h b/src/include/gpxe/dhcp.h
index 2cb4f0167..6825e406a 100644
--- a/src/include/gpxe/dhcp.h
+++ b/src/include/gpxe/dhcp.h
@@ -13,6 +13,12 @@
 #include <gpxe/udp.h>
 #include <gpxe/async.h>
 
+/** BOOTP/DHCP server port */
+#define BOOTPS_PORT 67
+
+/** BOOTP/DHCP client port */
+#define BOOTPC_PORT 68
+
 /** Construct a tag value for an encapsulated option
  *
  * This tag value can be passed to Etherboot functions when searching
@@ -345,9 +351,11 @@ struct dhcphdr {
 	uint32_t magic;
 	/** DHCP options
 	 *
-	 * Variable length; extends to the end of the packet.
+	 * Variable length; extends to the end of the packet.  Minimum
+	 * length (for the sake of sanity) is 1, to allow for a single
+	 * @c DHCP_END tag.
 	 */
-	uint8_t options[0];
+	uint8_t options[1];
 };
 
 /** Opcode for a request from client to server */
-- 
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