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Check chaddr as well as xid in all cases. hw_address hangs off of interface, not client data.

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This commit is contained in:
Ted Lemon
1998-03-16 06:08:41 +00:00
parent d213c35d9b
commit fcaec4ef11
1 changed files with 14 additions and 6 deletions
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20
client/dhclient.c
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@@ -56,7 +56,7 @@
#ifndef lint
static char copyright[] =
"$Id: dhclient.c,v 1.47 1998/03/15 21:04:52 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
"$Id: dhclient.c,v 1.48 1998/03/16 06:08:41 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
#endif /* not lint */
#include "dhcpd.h"
@@ -449,10 +449,10 @@ void dhcpack (packet)
/* If we're not receptive to an offer right now, or if the offer
has an unrecognizable transaction id, then just drop it. */
if (packet -> interface -> client -> xid != packet -> raw -> xid ||
(packet -> interface -> client -> hw_address.hlen !=
(packet -> interface -> hw_address.hlen !=
packet -> raw -> hlen) ||
(memcmp (packet -> interface -> client -> hw_address.haddr,
packet -> raw -> chaddr))) {
(memcmp (packet -> interface -> hw_address.haddr,
packet -> raw -> chaddr, packet -> raw -> hlen))) {
debug ("DHCPACK in wrong transaction.");
return;
}
@@ -682,7 +682,11 @@ void dhcpoffer (packet)
/* If we're not receptive to an offer right now, or if the offer
has an unrecognizable transaction id, then just drop it. */
if (ip -> client -> state != S_SELECTING ||
packet -> interface -> client -> xid != packet -> raw -> xid) {
packet -> interface -> client -> xid != packet -> raw -> xid ||
(packet -> interface -> hw_address.hlen !=
packet -> raw -> hlen) ||
(memcmp (packet -> interface -> hw_address.haddr,
packet -> raw -> chaddr, packet -> raw -> hlen))) {
debug ("%s in wrong transaction.", name);
return;
}
@@ -881,7 +885,11 @@ void dhcpnak (packet)
/* If we're not receptive to an offer right now, or if the offer
has an unrecognizable transaction id, then just drop it. */
if (packet -> interface -> client -> xid != packet -> raw -> xid) {
if (packet -> interface -> client -> xid != packet -> raw -> xid ||
(packet -> interface -> hw_address.hlen !=
packet -> raw -> hlen) ||
(memcmp (packet -> interface -> hw_address.haddr,
packet -> raw -> chaddr, packet -> raw -> hlen))) {
debug ("DHCPNAK in wrong transaction.");
return;
}