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Fix intercepts: don't double-snoop throttled customers, ensure
[l2tpns.git]
/
radius.c
diff --git
a/radius.c
b/radius.c
index
db49387
..
d2e2d3b
100644
(file)
--- a/
radius.c
+++ b/
radius.c
@@
-1,6
+1,6
@@
// L2TPNS Radius Stuff
// L2TPNS Radius Stuff
-char const *cvs_id_radius = "$Id: radius.c,v 1.
5 2004-06-28 02:43:13 fred_nerk
Exp $";
+char const *cvs_id_radius = "$Id: radius.c,v 1.
11 2004-11-05 04:55:27 bodea
Exp $";
#include <time.h>
#include <stdio.h>
#include <time.h>
#include <stdio.h>
@@
-41,12
+41,12
@@
const char *radius_state(int state)
void initrad(void)
{
int i;
void initrad(void)
{
int i;
-
log
(3, 0, 0, 0, "Creating %d sockets for RADIUS queries\n", config->num_radfds);
+
LOG
(3, 0, 0, 0, "Creating %d sockets for RADIUS queries\n", config->num_radfds);
radfds = calloc(sizeof(int), config->num_radfds);
for (i = 0; i < config->num_radfds; i++)
{
int flags;
radfds = calloc(sizeof(int), config->num_radfds);
for (i = 0; i < config->num_radfds; i++)
{
int flags;
- if (!radfds[i]) radfds[i] = socket(AF_INET, SOCK_DGRAM, UDP);
+ if (!radfds[i]) radfds[i] = socket(AF_INET, SOCK_DGRAM,
IPPROTO_
UDP);
flags = fcntl(radfds[i], F_GETFL, 0);
fcntl(radfds[i], F_SETFL, flags | O_NONBLOCK);
}
flags = fcntl(radfds[i], F_GETFL, 0);
fcntl(radfds[i], F_SETFL, flags | O_NONBLOCK);
}
@@
-59,7
+59,7
@@
void radiusclear(u16 r, sessionidt s)
}
}
-static u16
new
_radius()
+static u16
get_free
_radius()
{
int count;
static u32 next_radius_id = 0;
{
int count;
static u32 next_radius_id = 0;
@@
-74,28
+74,37
@@
static u16 new_radius()
{
return next_radius_id;
}
{
return next_radius_id;
}
-
- }
-
log
(0, 0, 0, 0, "Can't find a free radius session! This is very bad!\n");
-
return 0;
+ }
+
+
LOG
(0, 0, 0, 0, "Can't find a free radius session! This is very bad!\n");
+ return 0;
}
u16 radiusnew(sessionidt s)
{
}
u16 radiusnew(sessionidt s)
{
- u16 r;
- if (!(r = new_radius()))
+ u16 r = session[s].radius;
+
+ /* re-use */
+ if (r)
{
{
- log(1, 0, s, session[s].tunnel, "No free RADIUS sessions\n");
+ LOG(3, 0, s, session[s].tunnel, "Re-used radius %d\n", r);
+ return r;
+ }
+
+ if (!(r = get_free_radius()))
+ {
+ LOG(1, 0, s, session[s].tunnel, "No free RADIUS sessions\n");
STAT(radius_overflow);
return 0;
};
STAT(radius_overflow);
return 0;
};
+
memset(&radius[r], 0, sizeof(radius[r]));
session[s].radius = r;
radius[r].session = s;
radius[r].state = RADIUSWAIT;
radius[r].retry = TIME + 1200; // Wait at least 120 seconds to re-claim this.
memset(&radius[r], 0, sizeof(radius[r]));
session[s].radius = r;
radius[r].session = s;
radius[r].state = RADIUSWAIT;
radius[r].retry = TIME + 1200; // Wait at least 120 seconds to re-claim this.
-
log
(3,0,s, session[s].tunnel, "Allocated radius %d\n", r);
+
LOG
(3,0,s, session[s].tunnel, "Allocated radius %d\n", r);
return r;
}
return r;
}
@@
-114,12
+123,12
@@
void radiussend(u16 r, u8 state)
s = radius[r].session;
if (!config->numradiusservers)
{
s = radius[r].session;
if (!config->numradiusservers)
{
-
log
(0, 0, s, session[s].tunnel, "No RADIUS servers\n");
+
LOG
(0, 0, s, session[s].tunnel, "No RADIUS servers\n");
return;
}
if (!*config->radiussecret)
{
return;
}
if (!*config->radiussecret)
{
-
log
(0, 0, s, session[s].tunnel, "No RADIUS secret\n");
+
LOG
(0, 0, s, session[s].tunnel, "No RADIUS secret\n");
return;
}
return;
}
@@
-134,7
+143,7
@@
void radiussend(u16 r, u8 state)
radius[r].try = 0;
radius[r].state = state;
radius[r].retry = backoff(radius[r].try++);
radius[r].try = 0;
radius[r].state = state;
radius[r].retry = backoff(radius[r].try++);
-
log
(4, 0, s, session[s].tunnel, "Send RADIUS id %d sock %d state %s try %d\n",
+
LOG
(4, 0, s, session[s].tunnel, "Send RADIUS id %d sock %d state %s try %d\n",
r >> RADIUS_SHIFT, r & RADIUS_MASK,
radius_state(radius[r].state), radius[r].try);
if (radius[r].try > config->numradiusservers * 2)
r >> RADIUS_SHIFT, r & RADIUS_MASK,
radius_state(radius[r].state), radius[r].try);
if (radius[r].try > config->numradiusservers * 2)
@@
-145,7
+154,7
@@
void radiussend(u16 r, u8 state)
sessionshutdown(s, "RADIUS timeout");
else
{
sessionshutdown(s, "RADIUS timeout");
else
{
-
log
(1, 0, s, session[s].tunnel, "RADIUS timeout, but in state %s so don't timeout session\n",
+
LOG
(1, 0, s, session[s].tunnel, "RADIUS timeout, but in state %s so don't timeout session\n",
radius_states[state]);
radiusclear(r, s);
}
radius_states[state]);
radiusclear(r, s);
}
@@
-170,7
+179,7
@@
void radiussend(u16 r, u8 state)
b[0] = 4; // accounting request
break;
default:
b[0] = 4; // accounting request
break;
default:
-
log
(0, 0, 0, 0, "Unknown radius state %d\n", state);
+
LOG
(0, 0, 0, 0, "Unknown radius state %d\n", state);
}
b[1] = r >> RADIUS_SHIFT; // identifier
memcpy(b + 4, radius[r].auth, 16);
}
b[1] = r >> RADIUS_SHIFT; // identifier
memcpy(b + 4, radius[r].auth, 16);
@@
-336,9
+345,16
@@
void radiussend(u16 r, u8 state)
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
*(u32 *) & addr.sin_addr = config->radiusserver[(radius[r].try - 1) % config->numradiusservers];
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
*(u32 *) & addr.sin_addr = config->radiusserver[(radius[r].try - 1) % config->numradiusservers];
- addr.sin_port = htons((state == RADIUSAUTH) ? RADPORT : RADAPORT);
+ {
+ // get radius port
+ u16 port = config->radiusport[(radius[r].try - 1) % config->numradiusservers];
+ // no need to define the accounting port for itself:
+ // the accounting port is as far as I know always one more
+ // than the auth port JK 20040713
+ addr.sin_port = htons((state == RADIUSAUTH) ? port : port+1);
+ }
-
log_hex
(5, "RADIUS Send", b, (p - b));
+
LOG_HEX
(5, "RADIUS Send", b, (p - b));
sendto(radfds[r & RADIUS_MASK], b, p - b, 0, (void *) &addr, sizeof(addr));
}
sendto(radfds[r & RADIUS_MASK], b, p - b, 0, (void *) &addr, sizeof(addr));
}
@@
-361,25
+377,25
@@
void processrad(u8 *buf, int len, char socket_index)
CSTAT(call_processrad);
CSTAT(call_processrad);
-
log_hex
(5, "RADIUS Response", buf, len);
+
LOG_HEX
(5, "RADIUS Response", buf, len);
if (len < 20 || len < ntohs(*(u16 *) (buf + 2)))
{
if (len < 20 || len < ntohs(*(u16 *) (buf + 2)))
{
-
log
(1, 0, 0, 0, "Duff RADIUS response length %d\n", len);
+
LOG
(1, 0, 0, 0, "Duff RADIUS response length %d\n", len);
return ;
}
len = ntohs(*(u16 *) (buf + 2));
r = socket_index | (r_id << RADIUS_SHIFT);
s = radius[r].session;
return ;
}
len = ntohs(*(u16 *) (buf + 2));
r = socket_index | (r_id << RADIUS_SHIFT);
s = radius[r].session;
-
log
(3, 0, s, session[s].tunnel, "Received %s, radius %d response for session %u (code %d, id %d)\n",
+
LOG
(3, 0, s, session[s].tunnel, "Received %s, radius %d response for session %u (code %d, id %d)\n",
radius_states[radius[r].state], r, s, r_code, r_id);
if (!s && radius[r].state != RADIUSSTOP)
{
radius_states[radius[r].state], r, s, r_code, r_id);
if (!s && radius[r].state != RADIUSSTOP)
{
-
log
(1, 0, s, session[s].tunnel, " Unexpected RADIUS response\n");
+
LOG
(1, 0, s, session[s].tunnel, " Unexpected RADIUS response\n");
return;
}
if (radius[r].state != RADIUSAUTH && radius[r].state != RADIUSSTART && radius[r].state != RADIUSSTOP)
{
return;
}
if (radius[r].state != RADIUSAUTH && radius[r].state != RADIUSSTART && radius[r].state != RADIUSSTOP)
{
-
log
(1, 0, s, session[s].tunnel, " Unexpected RADIUS response\n");
+
LOG
(1, 0, s, session[s].tunnel, " Unexpected RADIUS response\n");
return;
}
t = session[s].tunnel;
return;
}
t = session[s].tunnel;
@@
-392,25
+408,19
@@
void processrad(u8 *buf, int len, char socket_index)
do {
if (memcmp(hash, buf + 4, 16))
{
do {
if (memcmp(hash, buf + 4, 16))
{
- log(0, 0, s, session[s].tunnel, " Incorrect auth on RADIUS response!! (wrong secret in radius config?)\n");
-// radius[r].state = RADIUSWAIT;
-
+ LOG(0, 0, s, session[s].tunnel, " Incorrect auth on RADIUS response!! (wrong secret in radius config?)\n");
return; // Do nothing. On timeout, it will try the next radius server.
}
if ((radius[r].state == RADIUSAUTH && *buf != 2 && *buf != 3) ||
((radius[r].state == RADIUSSTART || radius[r].state == RADIUSSTOP) && *buf != 5))
{
return; // Do nothing. On timeout, it will try the next radius server.
}
if ((radius[r].state == RADIUSAUTH && *buf != 2 && *buf != 3) ||
((radius[r].state == RADIUSSTART || radius[r].state == RADIUSSTOP) && *buf != 5))
{
- log(1, 0, s, session[s].tunnel, " Unexpected RADIUS response %d\n", *buf);
-
+ LOG(1, 0, s, session[s].tunnel, " Unexpected RADIUS response %d\n", *buf);
return; // We got something we didn't expect. Let the timeouts take
// care off finishing the radius session if that's really correct.
return; // We got something we didn't expect. Let the timeouts take
// care off finishing the radius session if that's really correct.
-// old code. I think incorrect. --mo
-// radius[r].state = RADIUSWAIT;
-// break; // Finish the radius sesssion.
}
if (radius[r].state == RADIUSAUTH)
{
}
if (radius[r].state == RADIUSAUTH)
{
-
log
(4, 0, s, session[s].tunnel, " Original response is \"%s\"\n", (*buf == 2) ? "accept" : "reject");
+
LOG
(4, 0, s, session[s].tunnel, " Original response is \"%s\"\n", (*buf == 2) ? "accept" : "reject");
// process auth response
if (radius[r].chap)
{
// process auth response
if (radius[r].chap)
{
@@
-425,7
+435,7
@@
void processrad(u8 *buf, int len, char socket_index)
*buf = packet.auth_allowed ? 2 : 3;
}
*buf = packet.auth_allowed ? 2 : 3;
}
-
log
(3, 0, s, session[s].tunnel, " CHAP User %s authentication %s.\n", session[s].user,
+
LOG
(3, 0, s, session[s].tunnel, " CHAP User %s authentication %s.\n", session[s].user,
(*buf == 2) ? "allowed" : "denied");
*p = (*buf == 2) ? 3 : 4; // ack/nak
p[1] = radius[r].id;
(*buf == 2) ? "allowed" : "denied");
*p = (*buf == 2) ? 3 : 4; // ack/nak
p[1] = radius[r].id;
@@
-445,7
+455,7
@@
void processrad(u8 *buf, int len, char socket_index)
*buf = packet.auth_allowed ? 2 : 3;
}
*buf = packet.auth_allowed ? 2 : 3;
}
-
log
(3, 0, s, session[s].tunnel, " PAP User %s authentication %s.\n", session[s].user,
+
LOG
(3, 0, s, session[s].tunnel, " PAP User %s authentication %s.\n", session[s].user,
(*buf == 2) ? "allowed" : "denied");
// ack/nak
*p = *buf;
(*buf == 2) ? "allowed" : "denied");
// ack/nak
*p = *buf;
@@
-466,20
+476,20
@@
void processrad(u8 *buf, int len, char socket_index)
if (*p == 8)
{
// Statically assigned address
if (*p == 8)
{
// Statically assigned address
-
log
(3, 0, s, session[s].tunnel, " Radius reply contains IP address %s\n", inet_toa(*(u32 *) (p + 2)));
+
LOG
(3, 0, s, session[s].tunnel, " Radius reply contains IP address %s\n", inet_toa(*(u32 *) (p + 2)));
session[s].ip = ntohl(*(u32 *) (p + 2));
session[s].ip_pool_index = -1;
}
else if (*p == 135)
{
// DNS address
session[s].ip = ntohl(*(u32 *) (p + 2));
session[s].ip_pool_index = -1;
}
else if (*p == 135)
{
// DNS address
-
log
(3, 0, s, session[s].tunnel, " Radius reply contains primary DNS address %s\n", inet_toa(*(u32 *) (p + 2)));
+
LOG
(3, 0, s, session[s].tunnel, " Radius reply contains primary DNS address %s\n", inet_toa(*(u32 *) (p + 2)));
session[s].dns1 = ntohl(*(u32 *) (p + 2));
}
else if (*p == 136)
{
// DNS address
session[s].dns1 = ntohl(*(u32 *) (p + 2));
}
else if (*p == 136)
{
// DNS address
-
log
(3, 0, s, session[s].tunnel, " Radius reply contains secondary DNS address %s\n", inet_toa(*(u32 *) (p + 2)));
+
LOG
(3, 0, s, session[s].tunnel, " Radius reply contains secondary DNS address %s\n", inet_toa(*(u32 *) (p + 2)));
session[s].dns2 = ntohl(*(u32 *) (p + 2));
}
else if (*p == 22)
session[s].dns2 = ntohl(*(u32 *) (p + 2));
}
else if (*p == 22)
@@
-517,14
+527,14
@@
void processrad(u8 *buf, int len, char socket_index)
mask = 0xFFFFFF00;
if (routes == MAXROUTE)
{
mask = 0xFFFFFF00;
if (routes == MAXROUTE)
{
-
log
(1, 0, s, session[s].tunnel, " Too many routes\n");
+
LOG
(1, 0, s, session[s].tunnel, " Too many routes\n");
}
else if (ip)
{
char *ips, *masks;
ips = strdup(inet_toa(htonl(ip)));
masks = strdup(inet_toa(htonl(mask)));
}
else if (ip)
{
char *ips, *masks;
ips = strdup(inet_toa(htonl(ip)));
masks = strdup(inet_toa(htonl(mask)));
-
log
(3, 0, s, session[s].tunnel, " Radius reply contains route for %s/%s\n", ips, masks);
+
LOG
(3, 0, s, session[s].tunnel, " Radius reply contains route for %s/%s\n", ips, masks);
free(ips);
free(masks);
session[s].route[routes].ip = ip;
free(ips);
free(masks);
session[s].route[routes].ip = ip;
@@
-538,16
+548,16
@@
void processrad(u8 *buf, int len, char socket_index)
int vendor = ntohl(*(int *)(p + 2));
char attrib = *(p + 6);
char attrib_length = *(p + 7) - 2;
int vendor = ntohl(*(int *)(p + 2));
char attrib = *(p + 6);
char attrib_length = *(p + 7) - 2;
-
log
(3, 0, s, session[s].tunnel, " Radius reply contains Vendor-Specific. Vendor=%d Attrib=%d Length=%d\n", vendor, attrib, attrib_length);
+
LOG
(3, 0, s, session[s].tunnel, " Radius reply contains Vendor-Specific. Vendor=%d Attrib=%d Length=%d\n", vendor, attrib, attrib_length);
if (attrib_length == 0) continue;
if (attrib != 1)
if (attrib_length == 0) continue;
if (attrib != 1)
-
log
(3, 0, s, session[s].tunnel, " Unknown vendor-specific\n");
+
LOG
(3, 0, s, session[s].tunnel, " Unknown vendor-specific\n");
else
{
char *avpair, *value, *key, *newp;
avpair = key = calloc(attrib_length + 1, 1);
memcpy(avpair, p + 8, attrib_length);
else
{
char *avpair, *value, *key, *newp;
avpair = key = calloc(attrib_length + 1, 1);
memcpy(avpair, p + 8, attrib_length);
-
log
(3, 0, s, session[s].tunnel, " Cisco-Avpair value: %s\n", avpair);
+
LOG
(3, 0, s, session[s].tunnel, " Cisco-Avpair value: %s\n", avpair);
do {
value = strchr(key, '=');
if (!value) break;
do {
value = strchr(key, '=');
if (!value) break;
@@
-579,7
+589,7
@@
void processrad(u8 *buf, int len, char socket_index)
}
else if (*buf == 3)
{
}
else if (*buf == 3)
{
-
log
(2, 0, s, session[s].tunnel, " Authentication denied for %s\n", session[s].user);
+
LOG
(2, 0, s, session[s].tunnel, " Authentication denied for %s\n", session[s].user);
//FIXME: We should tear down the session here!
break;
}
//FIXME: We should tear down the session here!
break;
}
@@
-587,22
+597,22
@@
void processrad(u8 *buf, int len, char socket_index)
if (!session[s].dns1 && config->default_dns1)
{
session[s].dns1 = htonl(config->default_dns1);
if (!session[s].dns1 && config->default_dns1)
{
session[s].dns1 = htonl(config->default_dns1);
-
log
(3, 0, s, t, " Sending dns1 = %s\n", inet_toa(config->default_dns1));
+
LOG
(3, 0, s, t, " Sending dns1 = %s\n", inet_toa(config->default_dns1));
}
if (!session[s].dns2 && config->default_dns2)
{
session[s].dns2 = htonl(config->default_dns2);
}
if (!session[s].dns2 && config->default_dns2)
{
session[s].dns2 = htonl(config->default_dns2);
-
log
(3, 0, s, t, " Sending dns2 = %s\n", inet_toa(config->default_dns2));
+
LOG
(3, 0, s, t, " Sending dns2 = %s\n", inet_toa(config->default_dns2));
}
// Valid Session, set it up
}
// Valid Session, set it up
- session[s].
s
id = 0;
+ session[s].
unique_
id = 0;
sessionsetup(t, s);
}
else
{
// An ack for a stop or start record.
sessionsetup(t, s);
}
else
{
// An ack for a stop or start record.
-
log
(3, 0, s, t, " RADIUS accounting ack recv in state %s\n", radius_states[radius[r].state]);
+
LOG
(3, 0, s, t, " RADIUS accounting ack recv in state %s\n", radius_states[radius[r].state]);
break;
}
} while (0);
break;
}
} while (0);
@@
-644,7
+654,7
@@
void radiusretry(u16 r)
case RADIUSWAIT: // waiting timeout before available, in case delayed reply from RADIUS server
// free up RADIUS task
radiusclear(r, s);
case RADIUSWAIT: // waiting timeout before available, in case delayed reply from RADIUS server
// free up RADIUS task
radiusclear(r, s);
-
log
(3, 0, s, session[s].tunnel, "Freeing up radius session %d\n", r);
+
LOG
(3, 0, s, session[s].tunnel, "Freeing up radius session %d\n", r);
break;
}
}
break;
}
}
@@
-653,7
+663,7
@@
void radius_clean()
{
int i;
{
int i;
-
log
(1, 0, 0, 0, "Cleaning radius session array\n");
+
LOG
(1, 0, 0, 0, "Cleaning radius session array\n");
for (i = 1; i < MAXRADIUS; i++)
{
for (i = 1; i < MAXRADIUS; i++)
{
@@
-661,6
+671,6
@@
void radius_clean()
|| !session[radius[i].session].opened
|| session[radius[i].session].die
|| session[radius[i].session].tunnel == 0)
|| !session[radius[i].session].opened
|| session[radius[i].session].die
|| session[radius[i].session].tunnel == 0)
- radiusclear(i,
0
);
+ radiusclear(i,
radius[i].session
);
}
}
}
}
projects / l2tpns.git / blobdiff