2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 * Author : Maxim Mamontov <faust@stargazer.dp.ua>
22 * FreeRADIUS module for data access via Stargazer
25 * $Date: 2010/08/14 04:15:08 $
34 //#include <freeradius/libradius.h>
37 //#include <freeradius/conffile.h>
40 #include "stg_client.h"
44 volatile time_t stgTime;
47 * Define a structure for our module configuration.
49 * These variables do not need to be in a structure, but it's
50 * a lot cleaner to do so, and a pointer to the structure can
51 * be used as the instance handle.
53 typedef struct rlm_stg_t {
61 * A mapping of configuration file names to internal variables.
63 * Note that the string is dynamically allocated, so it MUST
64 * be freed. When the configuration file parse re-reads the string,
65 * it free's the old one, and strdup's the new one, placing the pointer
66 * to the strdup'd string into 'config.string'. This gets around
69 static CONF_PARSER module_config[] = {
70 { "password", PW_TYPE_STRING_PTR, offsetof(rlm_stg_t,password), NULL, NULL},
71 { "server", PW_TYPE_STRING_PTR, offsetof(rlm_stg_t,server), NULL, NULL},
72 { "port", PW_TYPE_INTEGER, offsetof(rlm_stg_t,port), NULL, "5555" },
73 { "local_port", PW_TYPE_INTEGER, offsetof(rlm_stg_t,localPort), NULL, "0" },
75 { NULL, -1, 0, NULL, NULL } /* end the list */
79 * Do any per-module initialization that is separate to each
80 * configured instance of the module. e.g. set up connections
81 * to external databases, read configuration files, set up
82 * dictionary entries, etc.
84 * If configuration information is given in the config section
85 * that must be referenced in later calls, store a handle to it
86 * in *instance otherwise put a null pointer there.
88 static int stg_instantiate(CONF_SECTION *conf, void **instance)
93 * Set up a storage area for instance data
95 DEBUG("rlm_stg: stg_instantiate()");
96 data = (rlm_stg_t *)rad_malloc(sizeof(rlm_stg_t));
100 memset(data, 0, sizeof(rlm_stg_t));
103 * If the configuration parameters can't be parsed, then
106 if (cf_section_parse(conf, data, module_config) < 0) {
111 cli = new STG_CLIENT();
112 cli->SetServer(data->server);
113 cli->SetPort(data->port);
114 cli->SetLocalPort(data->localPort);
115 cli->SetPassword(data->password);
117 DEBUG("rlm_stg: stg_instantiate() error: '%s'", cli->GetError().c_str());
127 * Find the named user in this modules database. Create the set
128 * of attribute-value pairs to check and reply with for this user
129 * from the database. The authentication code only needs to check
130 * the password, the rest is done here.
132 static int stg_authorize(void *instance, REQUEST *request)
137 DEBUG("rlm_stg: stg_authorize()");
139 /* quiet the compiler */
143 uname = pairfind(request->packet->vps, PW_USER_NAME);
145 DEBUG("rlm_stg: stg_authorize() user name defined as '%s'", uname->vp_strvalue);
147 DEBUG("rlm_stg: stg_authorize() user name undefined");
148 return RLM_MODULE_FAIL;
150 if (request->username) {
151 DEBUG("rlm_stg: stg_authorize() request username field: '%s'", request->username->vp_strvalue);
153 if (request->password) {
154 DEBUG("rlm_stg: stg_authorize() request password field: '%s'", request->password->vp_strvalue);
156 // Here we need to define Framed-Protocol
157 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
159 DEBUG("rlm_stg: stg_authorize() Service-Type defined as '%s'", svc->vp_strvalue);
160 if (cli->Authorize((const char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue)) {
161 DEBUG("rlm_stg: stg_authorize() stg status: '%s'", cli->GetError().c_str());
162 return RLM_MODULE_REJECT;
165 DEBUG("rlm_stg: stg_authorize() Service-Type undefined");
166 if (cli->Authorize((const char *)request->username->vp_strvalue, "")) {
167 DEBUG("rlm_stg: stg_authorize() stg status: '%s'", cli->GetError().c_str());
168 return RLM_MODULE_REJECT;
171 pwd = pairmake("Cleartext-Password", cli->GetUserPassword().c_str(), T_OP_SET);
172 pairadd(&request->config_items, pwd);
173 //pairadd(&request->reply->vps, uname);
175 return RLM_MODULE_UPDATED;
179 * Authenticate the user with the given password.
181 static int stg_authenticate(void *instance, REQUEST *request)
183 /* quiet the compiler */
187 DEBUG("rlm_stg: stg_authenticate()");
188 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
190 DEBUG("rlm_stg: stg_authenticate() Service-Type defined as '%s'", svc->vp_strvalue);
191 if (cli->Authenticate((char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue)) {
192 DEBUG("rlm_stg: stg_authenticate() stg status: '%s'", cli->GetError().c_str());
193 return RLM_MODULE_REJECT;
196 DEBUG("rlm_stg: stg_authenticate() Service-Type undefined");
197 if (cli->Authenticate((char *)request->username->vp_strvalue, "")) {
198 DEBUG("rlm_stg: stg_authenticate() stg status: '%s'", cli->GetError().c_str());
199 return RLM_MODULE_REJECT;
203 return RLM_MODULE_NOOP;
207 * Massage the request before recording it or proxying it
209 static int stg_preacct(void *instance, REQUEST *request)
211 /* quiet the compiler */
214 DEBUG("rlm_stg: stg_preacct()");
216 return RLM_MODULE_OK;
220 * Write accounting information to this modules database.
222 static int stg_accounting(void *instance, REQUEST *request)
224 /* quiet the compiler */
228 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
231 DEBUG("rlm_stg: stg_accounting()");
233 sessid = pairfind(request->packet->vps, PW_ACCT_SESSION_ID);
235 DEBUG("rlm_stg: stg_accounting() Acct-Session-ID undefined");
236 return RLM_MODULE_FAIL;
238 sttype = pairfind(request->packet->vps, PW_ACCT_STATUS_TYPE);
240 DEBUG("Acct-Status-Type := %s", sttype->vp_strvalue);
242 DEBUG("rlm_stg: stg_accounting() Service-Type defined as '%s'", svc->vp_strvalue);
243 if (cli->Account((const char *)sttype->vp_strvalue, (const char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue, (const char *)sessid->vp_strvalue)) {
244 DEBUG("rlm_stg: stg_accounting error: '%s'", cli->GetError().c_str());
245 return RLM_MODULE_FAIL;
248 DEBUG("rlm_stg: stg_accounting() Service-Type undefined");
249 if (cli->Account((const char *)sttype->vp_strvalue, (const char *)request->username->vp_strvalue, "", (const char *)sessid->vp_strvalue)) {
250 DEBUG("rlm_stg: stg_accounting error: '%s'", cli->GetError().c_str());
251 return RLM_MODULE_FAIL;
255 DEBUG("Acct-Status-Type := NULL");
258 return RLM_MODULE_OK;
262 * See if a user is already logged in. Sets request->simul_count to the
263 * current session count for this user and sets request->simul_mpp to 2
264 * if it looks like a multilink attempt based on the requested IP
265 * address, otherwise leaves request->simul_mpp alone.
267 * Check twice. If on the first pass the user exceeds his
268 * max. number of logins, do a second pass and validate all
269 * logins by querying the terminal server (using eg. SNMP).
271 static int stg_checksimul(void *instance, REQUEST *request)
274 DEBUG("rlm_stg: stg_checksimul()");
276 request->simul_count=0;
278 return RLM_MODULE_OK;
281 static int stg_postauth(void *instance, REQUEST *request)
287 DEBUG("rlm_stg: stg_postauth()");
288 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
290 DEBUG("rlm_stg: stg_postauth() Service-Type defined as '%s'", svc->vp_strvalue);
291 if (cli->PostAuthenticate((const char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue)) {
292 DEBUG("rlm_stg: stg_postauth() error: '%s'", cli->GetError().c_str());
293 return RLM_MODULE_FAIL;
296 DEBUG("rlm_stg: stg_postauth() Service-Type undefined");
297 if (cli->PostAuthenticate((const char *)request->username->vp_strvalue, "")) {
298 DEBUG("rlm_stg: stg_postauth() error: '%s'", cli->GetError().c_str());
299 return RLM_MODULE_FAIL;
302 if (strncmp((const char *)svc->vp_strvalue, "Framed-User", 11) == 0) {
303 fip.s_addr = cli->GetFramedIP();
304 DEBUG("rlm_stg: stg_postauth() ip = '%s'", inet_ntostring(fip.s_addr).c_str());
305 fia = pairmake("Framed-IP-Address", inet_ntostring(fip.s_addr).c_str(), T_OP_SET);
306 pairadd(&request->reply->vps, fia);
309 return RLM_MODULE_UPDATED;
312 static int stg_detach(void *instance)
314 DEBUG("rlm_stg: stg_detach()");
317 free(((struct rlm_stg_t *)instance)->server);
318 free(((struct rlm_stg_t *)instance)->password);
324 * The module name should be the only globally exported symbol.
325 * That is, everything else should be 'static'.
327 * If the module needs to temporarily modify it's instantiation
328 * data, the type should be changed to RLM_TYPE_THREAD_UNSAFE.
329 * The server will then take care of ensuring that the module
330 * is single-threaded.
335 RLM_TYPE_THREAD_SAFE, /* type */
336 stg_instantiate, /* instantiation */
337 stg_detach, /* detach */
339 stg_authenticate, /* authentication */
340 stg_authorize, /* authorization */
341 stg_preacct, /* preaccounting */
342 stg_accounting, /* accounting */
343 stg_checksimul, /* checksimul */
344 NULL, /* pre-proxy */
345 NULL, /* post-proxy */
346 stg_postauth /* post-auth */