2 * session.c session management
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * Copyright 2000 The FreeRADIUS server project
24 #include <freeradius-devel/autoconf.h>
38 #ifdef HAVE_NETINET_IN_H
39 #include <netinet/in.h>
42 #include <freeradius-devel/radiusd.h>
43 #include <freeradius-devel/rad_assert.h>
46 * End a session by faking a Stop packet to all accounting modules.
48 int session_zap(REQUEST *request, uint32_t nasaddr, unsigned int port,
50 const char *sessionid, uint32_t cliaddr, char proto,
54 VALUE_PAIR *vp, *userpair;
57 stopreq = request_alloc_fake(request);
58 stopreq->packet->code = PW_ACCOUNTING_REQUEST; /* just to be safe */
59 rad_assert(stopreq != NULL);
61 /* Hold your breath */
62 #define PAIR(n,v,t,e) do { \
63 if(!(vp = paircreate(n, t))) { \
64 radlog(L_ERR|L_CONS, "no memory"); \
65 pairfree(&(stopreq->packet->vps)); \
69 pairadd(&(stopreq->packet->vps), vp); \
71 #define INTPAIR(n,v) PAIR(n,v,PW_TYPE_INTEGER,lvalue)
72 #define IPPAIR(n,v) PAIR(n,v,PW_TYPE_IPADDR,lvalue)
73 #define STRINGPAIR(n,v) do { \
74 if(!(vp = paircreate(n, PW_TYPE_STRING))) { \
75 radlog(L_ERR|L_CONS, "no memory"); \
76 pairfree(&(stopreq->packet->vps)); \
79 strNcpy((char *)vp->vp_strvalue, v, sizeof vp->vp_strvalue); \
80 vp->length = strlen(v); \
81 pairadd(&(stopreq->packet->vps), vp); \
84 INTPAIR(PW_ACCT_STATUS_TYPE, PW_STATUS_STOP);
85 IPPAIR(PW_NAS_IP_ADDRESS, nasaddr);
86 INTPAIR(PW_ACCT_DELAY_TIME, 0);
87 STRINGPAIR(PW_USER_NAME, user);
89 INTPAIR(PW_NAS_PORT, port);
90 STRINGPAIR(PW_ACCT_SESSION_ID, sessionid);
92 INTPAIR(PW_SERVICE_TYPE, PW_FRAMED_USER);
93 INTPAIR(PW_FRAMED_PROTOCOL, PW_PPP);
94 } else if(proto == 'S') {
95 INTPAIR(PW_SERVICE_TYPE, PW_FRAMED_USER);
96 INTPAIR(PW_FRAMED_PROTOCOL, PW_SLIP);
98 INTPAIR(PW_SERVICE_TYPE, PW_LOGIN_USER); /* A guess, really */
101 IPPAIR(PW_FRAMED_IP_ADDRESS, cliaddr);
102 INTPAIR(PW_ACCT_SESSION_TIME, session_time);
103 INTPAIR(PW_ACCT_INPUT_OCTETS, 0);
104 INTPAIR(PW_ACCT_OUTPUT_OCTETS, 0);
105 INTPAIR(PW_ACCT_INPUT_PACKETS, 0);
106 INTPAIR(PW_ACCT_OUTPUT_PACKETS, 0);
108 stopreq->username = userpair;
109 stopreq->password = NULL;
111 ret = rad_accounting(stopreq);
114 * We've got to clean it up by hand, because no one else will.
116 request_free(&stopreq);
123 * Check one terminal server to see if a user is logged in.
126 * 0 The user is off-line.
127 * 1 The user is logged in.
128 * 2 Some error occured.
130 int rad_check_ts(uint32_t nasaddr, unsigned int portnum, const char *user,
131 const char *session_id)
133 pid_t pid, child_pid;
139 lrad_ipaddr_t ipaddr;
142 ipaddr.ipaddr.ip4addr.s_addr = nasaddr;
147 cl = client_find_old(&ipaddr);
150 * Unknown NAS, so trusting radutmp.
152 DEBUG2("checkrad: Unknown NAS %s, not checking",
153 ip_ntoa(address, nasaddr));
158 * No nastype, or nas type 'other', trust radutmp.
160 if (!cl->nastype || (cl->nastype[0] == '\0') ||
161 (strcmp(cl->nastype, "other") == 0)) {
162 DEBUG2("checkrad: No NAS type, or type \"other\" not checking");
169 if ((pid = rad_fork(1)) < 0) { /* do wait for the fork'd result */
170 radlog(L_ERR, "Accounting: Failed in fork(): Cannot run checkrad\n");
178 * Parent - Wait for checkrad to terminate.
179 * We timeout in 10 seconds.
182 for (n = 0; n < 10; n++) {
184 child_pid = rad_waitpid(pid, &status, WNOHANG);
185 if ((child_pid < 0) || (child_pid == pid)) {
192 * It's taking too long. Stop waiting for it.
194 * Don't bother to kill it, as we don't care what
198 radlog(L_ERR, "Check-TS: timeout waiting for checkrad");
203 radlog(L_ERR, "Check-TS: unknown error in waitpid()");
207 return WEXITSTATUS(status);
211 * We don't close fd's 0, 1, and 2. If we're in debugging mode,
212 * then they should go to stdout (etc), along with the other
213 * server log messages.
215 * If we're not in debugging mode, then the code in radiusd.c
216 * takes care of connecting fd's 0, 1, and 2 to /dev/null.
220 ip_ntoa(address, nasaddr);
221 snprintf(port, 11, "%u", portnum);
224 /* OS/2 can't directly execute scripts then we call the command
225 processor to execute checkrad
227 execl(getenv("COMSPEC"), "", "/C","checkrad", cl->nastype, address, port,
228 user, session_id, NULL);
230 execl(mainconfig.checkrad, "checkrad", cl->nastype, address, port,
231 user, session_id, NULL);
233 radlog(L_ERR, "Check-TS: exec %s: %s", mainconfig.checkrad, strerror(errno));
236 * Exit - 2 means "some error occured".