// 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 1.93 2005-05-05 10:02:07 bodea Exp $";
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.99 2005-05-07 13:12:25 bodea Exp $";
#include <arpa/inet.h>
#include <assert.h>
// RADIUS Stop message
uint16_t r = sess_local[s].radius;
if (!r)
+ r = radiusnew(s);
+
+ if (r)
{
- if (!(r = radiusnew(s)))
- {
- LOG(1, s, session[s].tunnel, "No free RADIUS sessions for Stop message\n");
- STAT(radius_overflow);
- }
- else
- {
- random_data(radius[r].auth, sizeof(radius[r].auth));
- }
+ // stop, if not already trying
+ if (radius[r].state != RADIUSSTOP)
+ radiussend(r, RADIUSSTOP);
}
-
- if (r && radius[r].state != RADIUSSTOP)
- radiussend(r, RADIUSSTOP); // stop, if not already trying
+ else
+ LOG(1, s, session[s].tunnel, "No free RADIUS sessions for Stop message\n");
// Save counters to dump to accounting file
if (*config->accounting_dir && shut_acct_n < sizeof(shut_acct) / sizeof(*shut_acct))
if (!r)
r = radiusnew(s);
+ if (!r)
+ {
+ sessionshutdown(s, "No free RADIUS sessions for IPCP", 3, 0);
+ return;
+ }
+
if (radius[r].state != RADIUSIPCP)
{
radius[r].state = RADIUSIPCP;
}
}
+static void sessionclear(sessionidt s)
+{
+ memset(&session[s], 0, sizeof(session[s]));
+ memset(&sess_local[s], 0, sizeof(sess_local[s]));
+ memset(&cli_session_actions[s], 0, sizeof(cli_session_actions[s]));
+
+ session[s].tunnel = T_FREE; // Mark it as free.
+ session[s].next = sessionfree;
+ sessionfree = s;
+}
+
// kill a session now
void sessionkill(sessionidt s, char *reason)
{
radiusclear(sess_local[s].radius, s); // cant send clean accounting data, session is killed
LOG(2, s, session[s].tunnel, "Kill session %d (%s): %s\n", s, session[s].user, reason);
-
- memset(&session[s], 0, sizeof(session[s]));
- session[s].tunnel = T_FREE; // Mark it as free.
- session[s].next = sessionfree;
- sessionfree = s;
- cli_session_actions[s].action = 0;
+ sessionclear(s);
cluster_send_session(s);
}
uint16_t message = 0xFFFF; // message type
uint8_t fatal = 0;
uint8_t mandatory = 0;
- uint8_t chap = 0; // if CHAP being used
+ uint8_t authtype = 0; // proxy auth type
uint16_t asession = 0; // assigned session
uint32_t amagic = 0; // magic number
uint8_t aflags = 0; // flags from last LCF
uint16_t version = 0x0100; // protocol version (we handle 0.0 as well and send that back just in case)
- int requestchap = 0; // do we request PAP instead of original CHAP request?
char called[MAXTEL] = ""; // called number
char calling[MAXTEL] = ""; // calling number
// LOG(4, s, t, "Firmware revision\n");
break;
case 7: // host name
- memset(tunnel[t].hostname, 0, 128);
- memcpy(tunnel[t].hostname, b, (n >= 127) ? 127 : n);
+ memset(tunnel[t].hostname, 0, sizeof(tunnel[t].hostname));
+ memcpy(tunnel[t].hostname, b, (n < sizeof(tunnel[t].hostname)) ? n : sizeof(tunnel[t].hostname) - 1);
LOG(4, s, t, " Tunnel hostname = \"%s\"\n", tunnel[t].hostname);
// TBA - to send to RADIUS
break;
case 8: // vendor name
memset(tunnel[t].vendor, 0, sizeof(tunnel[t].vendor));
- memcpy(tunnel[t].vendor, b, (n >= sizeof(tunnel[t].vendor) - 1) ? sizeof(tunnel[t].vendor) - 1 : n);
+ memcpy(tunnel[t].vendor, b, (n < sizeof(tunnel[t].vendor)) ? n : sizeof(tunnel[t].vendor) - 1);
LOG(4, s, t, " Vendor name = \"%s\"\n", tunnel[t].vendor);
break;
case 9: // assigned tunnel
// TBA
break;
case 21: // called number
- memset(called, 0, MAXTEL);
- memcpy(called, b, (n >= MAXTEL) ? (MAXTEL-1) : n);
+ memset(called, 0, sizeof(called));
+ memcpy(called, b, (n < sizeof(called)) ? n : sizeof(called) - 1);
LOG(4, s, t, " Called <%s>\n", called);
break;
case 22: // calling number
- memset(calling, 0, MAXTEL);
- memcpy(calling, b, (n >= MAXTEL) ? (MAXTEL-1) : n);
+ memset(calling, 0, sizeof(calling));
+ memcpy(calling, b, (n < sizeof(calling)) ? n : sizeof(calling) - 1);
LOG(4, s, t, " Calling <%s>\n", calling);
break;
case 23: // subtype
else
{
// AS5300s send connect speed as a string
- char tmp[30] = {0};
- memcpy(tmp, b, (n >= 30) ? 30 : n);
+ char tmp[30];
+ memset(tmp, 0, sizeof(tmp));
+ memcpy(tmp, b, (n < sizeof(tmp)) ? n : sizeof(tmp) - 1);
session[s].tx_connect_speed = atol(tmp);
}
LOG(4, s, t, " TX connect speed <%u>\n", session[s].tx_connect_speed);
else
{
// AS5300s send connect speed as a string
- char tmp[30] = {0};
- memcpy(tmp, b, (n >= 30) ? 30 : n);
+ char tmp[30];
+ memset(tmp, 0, sizeof(tmp));
+ memcpy(tmp, b, (n < sizeof(tmp)) ? n : sizeof(tmp) - 1);
session[s].rx_connect_speed = atol(tmp);
}
LOG(4, s, t, " RX connect speed <%u>\n", session[s].rx_connect_speed);
{
uint16_t atype = ntohs(*(uint16_t *)b);
LOG(4, s, t, " Proxy Auth Type %d (%s)\n", atype, auth_type(atype));
- requestchap = (atype == 2);
+ if (atype == 2)
+ authtype = AUTHCHAP;
+ else if (atype == 3)
+ authtype = AUTHPAP;
+
break;
}
case 30: // Proxy Authentication Name
{
- char authname[64] = {0};
- memcpy(authname, b, (n > 63) ? 63 : n);
+ char authname[64];
+ memset(authname, 0, sizeof(authname));
+ memcpy(authname, b, (n < sizeof(authname)) ? n : sizeof(authname) - 1);
LOG(4, s, t, " Proxy Auth Name (%s)\n",
authname);
break;
break;
}
case 33: // Proxy Authentication Response
- {
- char authresp[64] = {0};
- memcpy(authresp, b, (n > 63) ? 63 : n);
- LOG(4, s, t, " Proxy Auth Response\n");
- break;
- }
- case 27: // last send lcp
+ LOG(4, s, t, " Proxy Auth Response\n");
+ break;
+ case 27: // last sent lcp
{ // find magic number
uint8_t *p = b, *e = p + n;
while (p + 1 < e && p[1] && p + p[1] <= e)
{
if (*p == 5 && p[1] == 6) // Magic-Number
amagic = ntohl(*(uint32_t *) (p + 2));
- else if (*p == 3 && p[1] == 5 && *(uint16_t *) (p + 2) == htons(PPPCHAP) && p[4] == 5) // Authentication-Protocol
- chap = 1;
+ else if (*p == 3 && p[1] == 4 && *(uint16_t *) (p + 2) == htons(PPPPAP)) // Authentication-Protocol (PAP)
+ authtype = AUTHPAP;
+ else if (*p == 3 && p[1] == 5 && *(uint16_t *) (p + 2) == htons(PPPCHAP) && p[4] == 5) // Authentication-Protocol (CHAP)
+ authtype = AUTHCHAP;
else if (*p == 7) // Protocol-Field-Compression
aflags |= SESSIONPFC;
else if (*p == 8) // Address-and-Control-Field-Compression
if (!sessionfree)
{
STAT(session_overflow);
- LOG(1, 0, t, "No free sessions");
+ LOG(1, 0, t, "No free sessions\n");
return;
}
else
if (!(r = radiusnew(s)))
{
LOG(1, s, t, "No free RADIUS sessions for ICRQ\n");
- sessionkill(s, "no free RADIUS sesions");
+ sessionclear(s);
return;
}
control16(c, 14, s, 1); // assigned session
controladd(c, t, s); // send the reply
- // Generate a random challenge
- random_data(radius[r].auth, sizeof(radius[r].auth));
strncpy(radius[r].calling, calling, sizeof(radius[r].calling) - 1);
strncpy(session[s].called, called, sizeof(session[s].called) - 1);
strncpy(session[s].calling, calling, sizeof(session[s].calling) - 1);
session[s].l2tp_flags = aflags; // set flags received
LOG(3, s, t, "Magic %X Flags %X\n", amagic, aflags);
controlnull(t); // ack
- // In CHAP state, request PAP instead
- if (requestchap)
- initlcp(t, s);
+ // proxy authentication type is not supported
+ if (authtype && !(config->radius_authtypes & authtype))
+ sendlcp(t, s, config->radius_authprefer);
break;
case 14: // CDN
controlnull(t); // ack
&& !sess_local[s].radius // RADIUS already in progress
&& time_now - sess_local[s].last_interim >= config->radius_interim)
{
- if (!radiusnew(s))
+ if (!(r = radiusnew(s)))
{
LOG(1, s, session[s].tunnel, "No free RADIUS sessions for Interim message\n");
STAT(radius_overflow);
continue;
}
- random_data(radius[r].auth, sizeof(radius[r].auth));
-
LOG(3, s, session[s].tunnel, "Sending RADIUS Interim for %s (%u)\n",
session[s].user, session[s].unique_id);
else if (!strncasecmp("pap", p, strlen(p)))
type = AUTHPAP;
else
- LOG(0, 0, 0, "Invalid RADIUS authentication type \"%s\"", p);
+ LOG(0, 0, 0, "Invalid RADIUS authentication type \"%s\"\n", p);
config->radius_authtypes |= type;
if (!config->radius_authprefer)
projects / l2tpns.git / blobdiff