From 027c72e0d0e2456ce5fbf7d5284f8ca7d3c94ade Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Sun, 25 Jan 2009 21:16:47 +0000
Subject: [dhcp] Include support for PXE boot menus

PXE dictates a mechanism for boot menuing, involving prompting the
user with a variable message, waiting for a predefined keypress,
displaying a boot menu, and waiting for a selection.

This breaks the currently desirable abstraction that DHCP is a process
that can happen in the background without any user interaction.
---
 src/include/gpxe/dhcp.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/include')

diff --git a/src/include/gpxe/dhcp.h b/src/include/gpxe/dhcp.h
index 66aa50ac3..d49ba7fd0 100644
--- a/src/include/gpxe/dhcp.h
+++ b/src/include/gpxe/dhcp.h
@@ -88,6 +88,9 @@ struct dhcp_pxe_boot_menu_item;
 /** PXE boot menu */
 #define DHCP_PXE_BOOT_MENU DHCP_ENCAP_OPT ( DHCP_VENDOR_ENCAP, 9 )
 
+/** PXE boot menu prompt */
+#define DHCP_PXE_BOOT_MENU_PROMPT DHCP_ENCAP_OPT ( DHCP_VENDOR_ENCAP, 10 )
+
 /** PXE boot menu item */
 #define DHCP_PXE_BOOT_MENU_ITEM DHCP_ENCAP_OPT ( DHCP_VENDOR_ENCAP, 71 )
 
@@ -478,7 +481,7 @@ struct dhcphdr {
 #define DHCP_MIN_LEN 552
 
 /** Maximum time that we will wait for ProxyDHCP responses */
-#define PROXYDHCP_WAIT_TIME ( TICKS_PER_SEC * 1 )
+#define PROXYDHCP_WAIT_TIME ( 2 * TICKS_PER_SEC )
 
 /** Timeouts for sending DHCP packets */
 #define DHCP_MIN_TIMEOUT ( 1 * TICKS_PER_SEC )
-- 
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