118 lines
3.3 KiB
Diff
118 lines
3.3 KiB
Diff
From 0a640394cb6f4a97fb87e53f049fba23523035c8 Mon Sep 17 00:00:00 2001
|
|
From: Pavel Zhukov <pzhukov@redhat.com>
|
|
Date: Thu, 21 Feb 2019 10:22:41 +0100
|
|
Subject: [PATCH 04/28] Support unicast BOOTP for IBM pSeries systems (and
|
|
maybe others)
|
|
|
|
---
|
|
server/bootp.c | 12 +++++++++++-
|
|
server/dhcp.c | 33 ++++++++++++++++++++++++++-------
|
|
2 files changed, 37 insertions(+), 8 deletions(-)
|
|
|
|
diff --git a/server/bootp.c b/server/bootp.c
|
|
index 919d483..338aac0 100644
|
|
--- a/server/bootp.c
|
|
+++ b/server/bootp.c
|
|
@@ -52,6 +52,7 @@ void bootp (packet)
|
|
char msgbuf [1024];
|
|
int ignorep;
|
|
int peer_has_leases = 0;
|
|
+ int norelay = 0;
|
|
|
|
if (packet -> raw -> op != BOOTREQUEST)
|
|
return;
|
|
@@ -67,7 +68,7 @@ void bootp (packet)
|
|
? inet_ntoa (packet -> raw -> giaddr)
|
|
: packet -> interface -> name);
|
|
|
|
- if (!locate_network (packet)) {
|
|
+ if ((norelay = locate_network (packet)) == 0) {
|
|
log_info ("%s: network unknown", msgbuf);
|
|
return;
|
|
}
|
|
@@ -428,6 +429,15 @@ void bootp (packet)
|
|
|
|
goto out;
|
|
}
|
|
+ } else if (norelay == 2) {
|
|
+ to.sin_addr = raw.ciaddr;
|
|
+ to.sin_port = remote_port;
|
|
+ if (fallback_interface) {
|
|
+ result = send_packet (fallback_interface, NULL, &raw,
|
|
+ outgoing.packet_length, from,
|
|
+ &to, &hto);
|
|
+ goto out;
|
|
+ }
|
|
|
|
/* If it comes from a client that already knows its address
|
|
and is not requesting a broadcast response, and we can
|
|
diff --git a/server/dhcp.c b/server/dhcp.c
|
|
index 0b261c2..ae805a6 100644
|
|
--- a/server/dhcp.c
|
|
+++ b/server/dhcp.c
|
|
@@ -5332,6 +5332,7 @@ int locate_network (packet)
|
|
struct data_string data;
|
|
struct subnet *subnet = (struct subnet *)0;
|
|
struct option_cache *oc;
|
|
+ int norelay = 0;
|
|
|
|
#if defined(DHCPv6) && defined(DHCP4o6)
|
|
if (dhcpv4_over_dhcpv6 && (packet->dhcp4o6_response != NULL)) {
|
|
@@ -5353,12 +5354,24 @@ int locate_network (packet)
|
|
from the interface, if there is one. If not, fail. */
|
|
if (!oc && !packet -> raw -> giaddr.s_addr) {
|
|
if (packet -> interface -> shared_network) {
|
|
- shared_network_reference
|
|
- (&packet -> shared_network,
|
|
- packet -> interface -> shared_network, MDL);
|
|
- return 1;
|
|
+ struct in_addr any_addr;
|
|
+ any_addr.s_addr = INADDR_ANY;
|
|
+
|
|
+ if (!packet -> packet_type && memcmp(&packet -> raw -> ciaddr, &any_addr, 4)) {
|
|
+ struct iaddr cip;
|
|
+ memcpy(cip.iabuf, &packet -> raw -> ciaddr, 4);
|
|
+ cip.len = 4;
|
|
+ if (!find_grouped_subnet(&subnet, packet->interface->shared_network, cip, MDL))
|
|
+ norelay = 2;
|
|
+ }
|
|
+
|
|
+ if (!norelay) {
|
|
+ shared_network_reference(&packet -> shared_network, packet -> interface -> shared_network, MDL);
|
|
+ return 1;
|
|
+ }
|
|
+ } else {
|
|
+ return 0;
|
|
}
|
|
- return 0;
|
|
}
|
|
|
|
/* If there's an option indicating link connection, and it's valid,
|
|
@@ -5384,7 +5397,10 @@ int locate_network (packet)
|
|
data_string_forget (&data, MDL);
|
|
} else {
|
|
ia.len = 4;
|
|
- memcpy (ia.iabuf, &packet -> raw -> giaddr, 4);
|
|
+ if (norelay)
|
|
+ memcpy (ia.iabuf, &packet->raw->ciaddr, 4);
|
|
+ else
|
|
+ memcpy (ia.iabuf, &packet->raw->giaddr, 4);
|
|
}
|
|
|
|
/* If we know the subnet on which the IP address lives, use it. */
|
|
@@ -5392,7 +5408,10 @@ int locate_network (packet)
|
|
shared_network_reference (&packet -> shared_network,
|
|
subnet -> shared_network, MDL);
|
|
subnet_dereference (&subnet, MDL);
|
|
- return 1;
|
|
+ if (norelay)
|
|
+ return norelay;
|
|
+ else
|
|
+ return 1;
|
|
}
|
|
|
|
/* Otherwise, fail. */
|
|
--
|
|
2.35.1
|
|
|