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/*
* session.c session management
*
* Version: $Id$
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* Copyright 2000,2006 The FreeRADIUS server project
*/
RCSID("$Id$")
#include <freeradius-devel/radiusd.h>
#include <freeradius-devel/modules.h>
#include <freeradius-devel/rad_assert.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef WITH_SESSION_MGMT
/*
* End a session by faking a Stop packet to all accounting modules.
*/
int session_zap(REQUEST *request, fr_ipaddr_t const *nasaddr, uint32_t nas_port,
char const *user,
char const *sessionid, uint32_t cliaddr, char proto,
int session_time)
{
REQUEST *stopreq;
VALUE_PAIR *vp;
int ret;
stopreq = request_alloc_fake(request);
rad_assert(stopreq != NULL);
rad_assert(stopreq->packet != NULL);
stopreq->packet->code = PW_CODE_ACCOUNTING_REQUEST; /* just to be safe */
stopreq->listener = request->listener;
/* Hold your breath */
#define PAIR(n,v,e) do { \
if(!(vp = fr_pair_afrom_num(stopreq->packet,n, 0))) { \
talloc_free(stopreq); \
ERROR("no memory"); \
return 0; \
} \
vp->e = v; \
fr_pair_add(&(stopreq->packet->vps), vp); \
} while(0)
#define INTPAIR(n,v) PAIR(n,v,vp_integer)
#define IPPAIR(n,v) PAIR(n,v,vp_ipaddr)
#define IPV6PAIR(n,v) PAIR(n,v,vp_ipv6addr)
#define STRINGPAIR(n,v) do { \
if(!(vp = fr_pair_afrom_num(stopreq->packet,n, 0))) { \
talloc_free(stopreq); \
ERROR("no memory"); \
return 0; \
} \
fr_pair_value_strcpy(vp, v); \
fr_pair_add(&(stopreq->packet->vps), vp); \
} while(0)
INTPAIR(PW_ACCT_STATUS_TYPE, PW_STATUS_STOP);
if (nasaddr->af == AF_INET) {
IPPAIR(PW_NAS_IP_ADDRESS, nasaddr->ipaddr.ip4addr.s_addr);
} else {
IPV6PAIR(PW_NAS_IPV6_ADDRESS, nasaddr->ipaddr.ip6addr);
}
INTPAIR(PW_EVENT_TIMESTAMP, 0);
vp->vp_date = time(NULL);
INTPAIR(PW_ACCT_DELAY_TIME, 0);
STRINGPAIR(PW_USER_NAME, user);
stopreq->username = vp;
INTPAIR(PW_NAS_PORT, nas_port);
STRINGPAIR(PW_ACCT_SESSION_ID, sessionid);
if(proto == 'P') {
INTPAIR(PW_SERVICE_TYPE, PW_FRAMED_USER);
INTPAIR(PW_FRAMED_PROTOCOL, PW_PPP);
} else if(proto == 'S') {
INTPAIR(PW_SERVICE_TYPE, PW_FRAMED_USER);
INTPAIR(PW_FRAMED_PROTOCOL, PW_SLIP);
} else {
INTPAIR(PW_SERVICE_TYPE, PW_LOGIN_USER); /* A guess, really */
}
if(cliaddr != 0)
IPPAIR(PW_FRAMED_IP_ADDRESS, cliaddr);
INTPAIR(PW_ACCT_SESSION_TIME, session_time);
INTPAIR(PW_ACCT_INPUT_OCTETS, 0);
INTPAIR(PW_ACCT_OUTPUT_OCTETS, 0);
INTPAIR(PW_ACCT_INPUT_PACKETS, 0);
INTPAIR(PW_ACCT_OUTPUT_PACKETS, 0);
stopreq->password = NULL;
RDEBUG("Running Accounting section for automatically created accounting 'stop'");
rdebug_pair_list(L_DBG_LVL_1, request, request->packet->vps, NULL);
ret = rad_accounting(stopreq);
/*
* We've got to clean it up by hand, because no one else will.
*/
talloc_free(stopreq);
return ret;
}
#ifndef __MINGW32__
/*
* Check one terminal server to see if a user is logged in.
*
* Return values:
* 0 The user is off-line.
* 1 The user is logged in.
* 2 Some error occured.
*/
int rad_check_ts(fr_ipaddr_t const *nasaddr, uint32_t nas_port, char const *user,
char const *session_id)
{
pid_t pid, child_pid;
int status;
char address[64];
char port[11];
RADCLIENT *cl;
/*
* Find NAS type.
*/
cl = client_find_old(nasaddr);
if (!cl) {
/*
* Unknown NAS, so trusting radutmp.
*/
DEBUG2("checkrad: Unknown NAS %s, not checking",
inet_ntop(nasaddr->af, &(nasaddr->ipaddr), address, sizeof(address)));
return 1;
}
/*
* No nas_type, or nas type 'other', trust radutmp.
*/
if (!cl->nas_type || (cl->nas_type[0] == '\0') ||
(strcmp(cl->nas_type, "other") == 0)) {
DEBUG2("checkrad: No NAS type, or type \"other\" not checking");
return 1;
}
/*
* Fork.
*/
if ((pid = rad_fork()) < 0) { /* do wait for the fork'd result */
ERROR("Accounting: Failed in fork(): Cannot run checkrad\n");
return 2;
}
if (pid > 0) {
child_pid = rad_waitpid(pid, &status);
/*
* It's taking too long. Stop waiting for it.
*
* Don't bother to kill it, as we don't care what
* happens to it now.
*/
if (child_pid == 0) {
ERROR("Check-TS: timeout waiting for checkrad");
return 2;
}
if (child_pid < 0) {
ERROR("Check-TS: unknown error in waitpid()");
return 2;
}
return WEXITSTATUS(status);
}
/*
* We don't close fd's 0, 1, and 2. If we're in debugging mode,
* then they should go to stdout (etc), along with the other
* server log messages.
*
* If we're not in debugging mode, then the code in radiusd.c
* takes care of connecting fd's 0, 1, and 2 to /dev/null.
*/
closefrom(3);
inet_ntop(nasaddr->af, &(nasaddr->ipaddr), address, sizeof(address));
snprintf(port, sizeof(port), "%u", nas_port);
#ifdef __EMX__
/* OS/2 can't directly execute scripts then we call the command
processor to execute checkrad
*/
execl(getenv("COMSPEC"), "", "/C","checkrad", cl->nas_type, address, port,
user, session_id, NULL);
#else
execl(main_config.checkrad, "checkrad", cl->nas_type, address, port,
user, session_id, NULL);
#endif
ERROR("Check-TS: exec %s: %s", main_config.checkrad, fr_syserror(errno));
/*
* Exit - 2 means "some error occured".
*/
exit(2);
}
#else
int rad_check_ts(fr_ipaddr_t const *nasaddr, UNUSED unsigned int nas_port,
UNUSED char const *user, UNUSED char const *session_id)
{
ERROR("Simultaneous-Use is not supported");
return 2;
}
#endif
#else
/* WITH_SESSION_MGMT */
int session_zap(UNUSED REQUEST *request, fr_ipaddr_t const *nasaddr, UNUSED uint32_t nas_port,
UNUSED char const *user,
UNUSED char const *sessionid, UNUSED uint32_t cliaddr, UNUSED char proto,
UNUSED int session_time)
{
return RLM_MODULE_FAIL;
}
int rad_check_ts(fr_ipaddr_t const *nasaddr, UNUSED unsigned int nas_port,
UNUSED char const *user, UNUSED char const *session_id)
{
ERROR("Simultaneous-Use is not supported");
return 2;
}
#endif
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