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- The DHCP Relay Agent Information Option / Link Selection Sub-Option

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is now supported.  (See RFC3527 for details). [ISC-Bugs #16251]
This commit is contained in:
David Hankins
2006-07-17 15:16:43 +00:00
parent 71b0f2cef7
commit 334bf4910f
4 changed files with 19 additions and 7 deletions
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19
server/dhcp.c
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@@ -34,7 +34,7 @@
#ifndef lint
static char copyright[] =
"$Id: dhcp.c,v 1.207 2006/06/19 20:39:28 shane Exp $ Copyright (c) 2004-2006 Internet Systems Consortium. All rights reserved.\n";
"$Id: dhcp.c,v 1.208 2006/07/17 15:16:43 dhankins Exp $ Copyright (c) 2004-2006 Internet Systems Consortium. All rights reserved.\n";
#endif /* not lint */
#include "dhcpd.h"
@@ -3902,9 +3902,15 @@ int locate_network (packet)
struct subnet *subnet = (struct subnet *)0;
struct option_cache *oc;
/* See if there's a subnet selection option. */
oc = lookup_option (&dhcp_universe, packet -> options,
DHO_SUBNET_SELECTION);
/* See if there's a Relay Agent Link Selection Option, or a
* Subnet Selection Option. The Link-Select and Subnet-Select
* are formatted and used precisely the same, but we must prefer
* the link-select over the subnet-select.
*/
if ((oc = lookup_option(&agent_universe, packet->options,
RAI_LINK_SELECT)) == NULL)
oc = lookup_option(&dhcp_universe, packet->options,
DHO_SUBNET_SELECTION);
/* If there's no SSO and no giaddr, then use the shared_network
from the interface, if there is one. If not, fail. */
@@ -3918,8 +3924,9 @@ int locate_network (packet)
return 0;
}
/* If there's an SSO, and it's valid, use it to figure out the
subnet. If it's not valid, fail. */
/* If there's an option indicating link connection, and it's valid,
* use it to figure out the subnet. If it's not valid, fail.
*/
if (oc) {
memset (&data, 0, sizeof data);
if (!evaluate_option_cache (&data, packet, (struct lease *)0,