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allow DNS servers to be specified using either old or new vendor-specific Ascend formats

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This commit is contained in:
Brendan O'Dea 2006-08-02 14:17:30 +00:00
parent fb0d8b5fb6
commit 534a9900a8
3 changed files with 34 additions and 25 deletions
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53
radius.c
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@ -1,6 +1,6 @@
// L2TPNS Radius Stuff
char const *cvs_id_radius = "$Id: radius.c,v 1.54 2006-08-02 13:35:39 bodea Exp $";
char const *cvs_id_radius = "$Id: radius.c,v 1.55 2006-08-02 14:17:30 bodea Exp $";
#include <time.h>
#include <stdio.h>
@ -635,6 +635,35 @@ void processrad(uint8_t *buf, int len, char socket_index)
uint8_t *e = buf + len;
for (; p + 2 <= e && p[1] && p + p[1] <= e; p += p[1])
{
if (*p == 26 && p[1] >= 7)
{
// Vendor-Specific Attribute
uint32_t vendor = ntohl(*(int *)(p + 2));
uint8_t attrib = *(p + 6);
int attrib_length = *(p + 7) - 2;
LOG(4, s, session[s].tunnel, " Radius reply contains Vendor-Specific. Vendor=%u Attrib=%u Length=%d\n", vendor, attrib, attrib_length);
if (vendor == 9 && attrib == 1) // Cisco-AVPair
{
if (attrib_length < 0) continue;
LOG(3, s, session[s].tunnel, " Cisco-AVPair value: %.*s\n",
attrib_length, p + 8);
handle_avpair(s, p + 8, attrib_length);
continue;
}
else if (vendor == 529 && attrib >= 135 && attrib <= 136) // Ascend
{
// handle old-format ascend DNS attributes below
p += 6;
}
else
{
LOG(3, s, session[s].tunnel, " Unknown vendor-specific\n");
continue;
}
}
if (*p == 8)
{
// Framed-IP-Address
@ -762,28 +791,6 @@ void processrad(uint8_t *buf, int len, char socket_index)
session[s].idle_timeout = ntohl(*(uint32_t *)(p + 2));
LOG(3, s, session[s].tunnel, " Radius reply contains Idle-Timeout = %u\n", session[s].idle_timeout);
}
else if (*p == 26 && p[1] >= 7)
{
// Vendor-Specific Attribute
uint32_t vendor = ntohl(*(int *)(p + 2));
uint8_t attrib = *(p + 6);
int attrib_length = *(p + 7) - 2;
LOG(3, s, session[s].tunnel, " Radius reply contains Vendor-Specific. Vendor=%u Attrib=%u Length=%d\n", vendor, attrib, attrib_length);
if (vendor != 9 || attrib != 1)
{
LOG(3, s, session[s].tunnel, " Unknown vendor-specific\n");
continue;
}
if (attrib_length > 0)
{
LOG(3, s, session[s].tunnel, " Cisco-AVPair value: %.*s\n",
attrib_length, p + 8);
handle_avpair(s, p + 8, attrib_length);
}
}
else if (*p == 99)
{
// Framed-IPv6-Route