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validate source of RADIUS packets

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This commit is contained in:
Brendan O'Dea 2006-02-17 13:27:07 +00:00
parent 1aa51f00e1
commit aca7a80c41
3 changed files with 14 additions and 5 deletions
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3
Changes
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@ -1,8 +1,9 @@
* Fri Jan 20 2006 Brendan O'Dea <bod@optus.net> 2.1.16
* Sat Feb 18 2006 Brendan O'Dea <bod@optus.net> 2.1.16
- Send configured magic-no in LCP EchoReq when LCP is opened.
- Correct addition of single IP to pool (Jonathan Yarden).
- Handle LCP NAK of magic-number.
- Ensure session changes from LCP ConfigReq/ConfigNak are sent to cluster.
- Verify that RADIUS packets come from a configured server (Jonathan Yarden).
* Mon Dec 19 2005 Brendan O'Dea <bod@optus.net> 2.1.15
- Drop backtrace.

12
l2tpns.c
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@ -4,7 +4,7 @@
// Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
// vim: sw=8 ts=8
char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.155 2006-01-19 20:55:03 bodea Exp $";
char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.156 2006-02-17 13:27:07 bodea Exp $";
#include <arpa/inet.h>
#include <assert.h>
@ -3301,9 +3301,17 @@ static void mainloop(void)
break;
case FD_TYPE_RADIUS: // RADIUS response
s = recv(radfds[d->index], buf, sizeof(buf), 0);
alen = sizeof(addr);
s = recvfrom(radfds[d->index], buf, sizeof(buf), MSG_WAITALL, (void *) &addr, &alen);
if (s >= 0 && config->cluster_iam_master)
{
if (addr.sin_addr.s_addr == config->radiusserver[0] ||
addr.sin_addr.s_addr == config->radiusserver[1])
processrad(buf, s, d->index);
else
LOG(3, 0, 0, "Dropping RADIUS packet from unknown source %s\n",
fmtaddr(addr.sin_addr.s_addr, 0));
}
n--;
break;

2
l2tpns.spec
View file

@ -43,5 +43,5 @@ rm -rf %{buildroot}
%attr(644,root,root) /usr/share/man/man[58]/*
%changelog
* Fri Jan 20 2006 Brendan O'Dea <bod@optus.net> 2.1.16-1
* Sat Feb 18 2006 Brendan O'Dea <bod@optus.net> 2.1.16-1
- 2.1.16 release, see /usr/share/doc/l2tpns-2.1.16/Changes