// L2TPNS Radius Stuff
-char const *cvs_id_radius = "$Id: radius.c,v 1.34 2005/06/28 14:48:28 bodea Exp $";
+char const *cvs_id_radius = "$Id: radius.c,v 1.39 2005/08/10 11:25:56 bodea Exp $";
#include <time.h>
#include <stdio.h>
#include <ctype.h>
#include <netinet/in.h>
#include <errno.h>
-#include "md5.h"
+#include <openssl/md5.h>
#include "constants.h"
#include "l2tpns.h"
#include "plugin.h"
{
*p = 1; // user name
p[1] = strlen(session[s].user) + 2;
- strcpy(p + 2, session[s].user);
+ strcpy((char *) p + 2, session[s].user);
p += p[1];
}
if (state == RADIUSAUTH)
while (p < pl)
{
MD5_CTX ctx;
- MD5Init(&ctx);
- MD5Update(&ctx, config->radiussecret, strlen(config->radiussecret));
+ MD5_Init(&ctx);
+ MD5_Update(&ctx, config->radiussecret, strlen(config->radiussecret));
if (p)
- MD5Update(&ctx, pass + p - 16, 16);
+ MD5_Update(&ctx, pass + p - 16, 16);
else
- MD5Update(&ctx, radius[r].auth, 16);
- MD5Final(hash, &ctx);
+ MD5_Update(&ctx, radius[r].auth, 16);
+ MD5_Final(hash, &ctx);
do
{
pass[p] ^= hash[p & 15];
{
*p = 44; // session ID
p[1] = 18;
- sprintf(p + 2, "%08X%08X", session[s].unique_id, session[s].opened);
+ sprintf((char *) p + 2, "%08X%08X", session[s].unique_id, session[s].opened);
p += p[1];
if (state == RADIUSSTART)
{ // start
p[1] = 6;
*(uint32_t *) (p + 2) = htonl(session[s].cout);
p += p[1];
- if (state == RADIUSSTOP)
- {
- *p = 46; // session time
- p[1] = 6;
- *(uint32_t *) (p + 2) = htonl(time(NULL) - session[s].opened);
- p += p[1];
- }
+
+ *p = 46; // session time
+ p[1] = 6;
+ *(uint32_t *) (p + 2) = htonl(time(NULL) - session[s].opened);
+ p += p[1];
*p = 47; // input packets
p[1] = 6;
*p = 26; // vendor-specific
*(uint32_t *) (p + 2) = htonl(9); // Cisco
p[6] = 1; // Cisco-AVPair
- p[7] = 2 + sprintf(p + 8, "intercept=%s:%d",
+ p[7] = 2 + sprintf((char *) p + 8, "intercept=%s:%d",
fmtaddr(session[s].snoop_ip, 0), session[s].snoop_port);
p[1] = p[7] + 6;
{
*p = 30; // called
p[1] = strlen(session[s].called) + 2;
- strcpy(p + 2, session[s].called);
- p += p[1];
- }
- if (*radius[r].calling)
- {
- *p = 31; // calling
- p[1] = strlen(radius[r].calling) + 2;
- strcpy(p + 2, radius[r].calling);
+ strcpy((char *) p + 2, session[s].called);
p += p[1];
}
else if (*session[s].calling)
{
*p = 31; // calling
p[1] = strlen(session[s].calling) + 2;
- strcpy(p + 2, session[s].calling);
+ strcpy((char *) p + 2, session[s].calling);
p += p[1];
}
// NAS-IP-Address
if (state != RADIUSAUTH)
{
// Build auth for accounting packet
- char z[16] = {0};
- char hash[16] = {0};
+ uint8_t z[16] = {0};
+ uint8_t hash[16] = {0};
MD5_CTX ctx;
- MD5Init(&ctx);
- MD5Update(&ctx, b, 4);
- MD5Update(&ctx, z, 16);
- MD5Update(&ctx, b + 20, (p - b) - 20);
- MD5Update(&ctx, config->radiussecret, strlen(config->radiussecret));
- MD5Final(hash, &ctx);
+ MD5_Init(&ctx);
+ MD5_Update(&ctx, b, 4);
+ MD5_Update(&ctx, z, 16);
+ MD5_Update(&ctx, b + 20, (p - b) - 20);
+ MD5_Update(&ctx, config->radiussecret, strlen(config->radiussecret));
+ MD5_Final(hash, &ctx);
memcpy(b + 4, hash, 16);
memcpy(radius[r].auth, hash, 16);
}
static void handle_avpair(sessionidt s, uint8_t *avp, int len)
{
- char *key = avp;
- char *value = memchr(avp, '=', len);
- char tmp[2048] = "";
+ uint8_t *key = avp;
+ uint8_t *value = memchr(avp, '=', len);
+ uint8_t tmp[2048] = "";
if (value)
{
// Run hooks
{
- struct param_radius_response p = { &tunnel[session[s].tunnel], &session[s], key, value };
+ struct param_radius_response p = { &tunnel[session[s].tunnel], &session[s], (char *) key, (char *) value };
run_plugins(PLUGIN_RADIUS_RESPONSE, &p);
}
}
return;
}
t = session[s].tunnel;
- MD5Init(&ctx);
- MD5Update(&ctx, buf, 4);
- MD5Update(&ctx, radius[r].auth, 16);
- MD5Update(&ctx, buf + 20, len - 20);
- MD5Update(&ctx, config->radiussecret, strlen(config->radiussecret));
- MD5Final(hash, &ctx);
+ MD5_Init(&ctx);
+ MD5_Update(&ctx, buf, 4);
+ MD5_Update(&ctx, radius[r].auth, 16);
+ MD5_Update(&ctx, buf + 20, len - 20);
+ MD5_Update(&ctx, config->radiussecret, strlen(config->radiussecret));
+ MD5_Final(hash, &ctx);
do {
if (memcmp(hash, buf + 4, 16))
{
if (radius[r].chap)
{
// CHAP
- uint8_t *p = makeppp(b, sizeof(b), 0, 0, t, s, PPPCHAP);
+ uint8_t *p = makeppp(b, sizeof(b), 0, 0, s, t, PPPCHAP);
if (!p) return; // Abort!
*p = (r_code == AccessAccept) ? 3 : 4; // ack/nak
else
{
// PAP
- uint8_t *p = makeppp(b, sizeof(b), 0, 0, t, s, PPPPAP);
+ uint8_t *p = makeppp(b, sizeof(b), 0, 0, s, t, PPPPAP);
if (!p) return; // Abort!
// ack/nak
else if (*p == 11)
{
// Filter-Id
- char *filter = p + 2;
+ char *filter = (char *) p + 2;
int l = p[1] - 2;
char *suffix;
int f;
int prefixlen;
uint8_t *n = p + 2;
uint8_t *e = p + p[1];
- uint8_t *m = strchr(n, '/');
+ uint8_t *m = memchr(n, '/', e - p);
*m++ = 0;
- inet_pton(AF_INET6, n, &r6);
+ inet_pton(AF_INET6, (char *) n, &r6);
prefixlen = 0;
while (m < e && isdigit(*m)) {
if (!session[s].dns1 && config->default_dns1)
{
- session[s].dns1 = htonl(config->default_dns1);
+ session[s].dns1 = ntohl(config->default_dns1);
LOG(3, s, t, " Sending dns1 = %s\n", fmtaddr(config->default_dns1, 0));
}
if (!session[s].dns2 && config->default_dns2)
{
- session[s].dns2 = htonl(config->default_dns2);
+ session[s].dns2 = ntohl(config->default_dns2);
LOG(3, s, t, " Sending dns2 = %s\n", fmtaddr(config->default_dns2, 0));
}
// Valid Session, set it up
session[s].unique_id = 0;
- sessionsetup(t, s);
+ sessionsetup(s, t);
}
else
{
switch (radius[r].state)
{
case RADIUSCHAP: // sending CHAP down PPP
- sendchap(t, s);
- break;
- case RADIUSIPCP:
- sendipcp(t, s); // send IPCP
+ sendchap(s, t);
break;
case RADIUSAUTH: // sending auth to RADIUS server
- radiussend(r, RADIUSAUTH);
- break;
case RADIUSSTART: // sending start accounting to RADIUS server
- radiussend(r, RADIUSSTART);
- break;
case RADIUSSTOP: // sending stop accounting to RADIUS server
- radiussend(r, RADIUSSTOP);
- break;
case RADIUSINTERIM: // sending interim accounting to RADIUS server
- radiussend(r, RADIUSINTERIM);
+ radiussend(r, radius[r].state);
break;
default:
case RADIUSNULL: // Not in use
uint8_t *p;
LOG(3, 0, 0, "DAE request from %s\n", fmtaddr(addr->sin_addr.s_addr, 0));
-
- // check if DAE is from RADIUS server
- for (i = 0; i < config->numradiusservers; i++)
- if (config->radiusserver[i] == addr -> sin_addr.s_addr)
- break;
-
- if (i >= config->numradiusservers)
- {
- LOG(1, 0, 0, "Unknown DAE client %s\n", fmtaddr(addr->sin_addr.s_addr, 0));
- return;
- }
-
LOG_HEX(5, "DAE Request", buf, len);
if (len < 20 || len < ntohs(*(uint16_t *) (buf + 2)))
i = strlen(config->radiussecret);
if (i > 16) i = 16;
- MD5Init(&ctx);
- MD5Update(&ctx, buf, len);
- MD5Update(&ctx, buf, config->radiussecret, i);
- MD5Final(hash, &ctx);
+ MD5_Init(&ctx);
+ MD5_Update(&ctx, buf, len);
+ MD5_Update(&ctx, config->radiussecret, i);
+ MD5_Final(hash, &ctx);
if (memcmp(hash, vector, 16) != 0)
{
LOG(1, 0, 0, "Incorrect vector in DAE request (wrong secret in radius config?)\n");
}
len = p - packet;
- i = find_filter(packet, len);
+ i = find_filter((char *) packet, len);
if (i < 0 || !*ip_filters[i].name)
{
error = 404;
}
// apply filters
- if (fin != -1 || fout != -1)
- {
- if (fin == -1)
- fin = 0;
- else
- LOG(3, s, t, " Filter in %d (%s)\n", fin, ip_filters[fin - 1].name);
+ if (fin == -1)
+ fin = 0;
+ else
+ LOG(3, s, t, " Filter in %d (%s)\n", fin, ip_filters[fin - 1].name);
- if (fout == -1)
- fout = 0;
- else
- LOG(3, s, t, " Filter out %d (%s)\n", fout, ip_filters[fout - 1].name);
+ if (fout == -1)
+ fout = 0;
+ else
+ LOG(3, s, t, " Filter out %d (%s)\n", fout, ip_filters[fout - 1].name);
- filter_session(s, fin, fout);
- }
+ filter_session(s, fin, fout);
// process cisco av-pair(s)
for (i = 0; i < avp; i++)
i = strlen(config->radiussecret);
if (i > 16) i = 16;
- MD5Init(&ctx);
- MD5Update(&ctx, buf, len);
- MD5Update(&ctx, config->radiussecret, i);
- MD5Final(hash, &ctx);
+ MD5_Init(&ctx);
+ MD5_Update(&ctx, buf, len);
+ MD5_Update(&ctx, config->radiussecret, i);
+ MD5_Final(hash, &ctx);
memcpy(buf + 4, hash, 16);
LOG(3, 0, 0, "Sending DAE %s, id=%d\n", radius_code(r_code), r_id);
projects / l2tpns.git / blobdiff