4bf24c8243
- Had to rename the -T option to -timeout as ISC is now using -T
- Allow package rebuilders to easily enable DHCPv6 support with: rpmbuild
--with DHCPv6 dhcp.spec Note that Fedora is still using the 'dhcpv6'
package, but some users may want to experiment with the ISC DHCPv6
implementation locally.
100 lines
3.1 KiB
Diff
100 lines
3.1 KiB
Diff
diff -up dhcp-4.1.0/server/bootp.c.unicast dhcp-4.1.0/server/bootp.c
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--- dhcp-4.1.0/server/bootp.c.unicast 2008-08-20 13:07:19.000000000 -1000
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+++ dhcp-4.1.0/server/bootp.c 2009-01-06 10:13:29.000000000 -1000
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@@ -58,6 +58,7 @@ void bootp (packet)
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char msgbuf [1024];
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int ignorep;
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int peer_has_leases = 0;
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+ int norelay = 0;
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if (packet -> raw -> op != BOOTREQUEST)
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return;
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@@ -73,7 +74,7 @@ void bootp (packet)
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? inet_ntoa (packet -> raw -> giaddr)
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: packet -> interface -> name);
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- if (!locate_network (packet)) {
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+ if ((norelay = locate_network (packet)) == 0) {
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log_info ("%s: network unknown", msgbuf);
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return;
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}
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@@ -390,6 +391,13 @@ void bootp (packet)
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from, &to, &hto);
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goto out;
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}
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+ } else if (norelay == 2) {
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+ to.sin_addr = raw.ciaddr;
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+ to.sin_port = remote_port;
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+ if (fallback_interface) {
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+ result = send_packet (fallback_interface, (struct packet *)0, &raw, outgoing.packet_length, from, &to, &hto);
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+ goto out;
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+ }
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/* If it comes from a client that already knows its address
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and is not requesting a broadcast response, and we can
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diff -up dhcp-4.1.0/server/dhcp.c.unicast dhcp-4.1.0/server/dhcp.c
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--- dhcp-4.1.0/server/dhcp.c.unicast 2008-11-03 08:13:58.000000000 -1000
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+++ dhcp-4.1.0/server/dhcp.c 2009-01-06 10:13:29.000000000 -1000
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@@ -4111,6 +4111,7 @@ int locate_network (packet)
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struct data_string data;
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struct subnet *subnet = (struct subnet *)0;
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struct option_cache *oc;
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+ int norelay = 0;
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/* See if there's a Relay Agent Link Selection Option, or a
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* Subnet Selection Option. The Link-Select and Subnet-Select
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@@ -4126,12 +4127,24 @@ int locate_network (packet)
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from the interface, if there is one. If not, fail. */
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if (!oc && !packet -> raw -> giaddr.s_addr) {
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if (packet -> interface -> shared_network) {
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- shared_network_reference
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- (&packet -> shared_network,
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- packet -> interface -> shared_network, MDL);
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- return 1;
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+ struct in_addr any_addr;
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+ any_addr.s_addr = INADDR_ANY;
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+
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+ if (!packet -> packet_type && memcmp(&packet -> raw -> ciaddr, &any_addr, 4)) {
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+ struct iaddr cip;
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+ memcpy(cip.iabuf, &packet -> raw -> ciaddr, 4);
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+ cip.len = 4;
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+ if (!find_grouped_subnet(&subnet, packet->interface->shared_network, cip, MDL))
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+ norelay = 2;
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+ }
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+
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+ if (!norelay) {
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+ shared_network_reference(&packet -> shared_network, packet -> interface -> shared_network, MDL);
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+ return 1;
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+ }
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+ } else {
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+ return 0;
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}
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- return 0;
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}
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/* If there's an option indicating link connection, and it's valid,
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@@ -4154,7 +4167,10 @@ int locate_network (packet)
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data_string_forget (&data, MDL);
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} else {
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ia.len = 4;
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- memcpy (ia.iabuf, &packet -> raw -> giaddr, 4);
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+ if (norelay)
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+ memcpy (ia.iabuf, &packet->raw->ciaddr, 4);
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+ else
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+ memcpy (ia.iabuf, &packet->raw->giaddr, 4);
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}
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/* If we know the subnet on which the IP address lives, use it. */
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@@ -4162,7 +4178,10 @@ int locate_network (packet)
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shared_network_reference (&packet -> shared_network,
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subnet -> shared_network, MDL);
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subnet_dereference (&subnet, MDL);
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- return 1;
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+ if (norelay)
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+ return norelay;
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+ else
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+ return 1;
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}
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/* Otherwise, fail. */
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