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 $
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) {
112 cli = new STG_CLIENT(data->server, data->port, data->localPort, data->password);
114 catch (std::exception & ex) {
115 DEBUG("rlm_stg: stg_instantiate() error: '%s'", ex.what());
125 * Find the named user in this modules database. Create the set
126 * of attribute-value pairs to check and reply with for this user
127 * from the database. The authentication code only needs to check
128 * the password, the rest is done here.
130 static int stg_authorize(void *, REQUEST *request)
135 DEBUG("rlm_stg: stg_authorize()");
137 uname = pairfind(request->packet->vps, PW_USER_NAME);
139 DEBUG("rlm_stg: stg_authorize() user name defined as '%s'", uname->vp_strvalue);
141 DEBUG("rlm_stg: stg_authorize() user name undefined");
142 return RLM_MODULE_FAIL;
144 if (request->username) {
145 DEBUG("rlm_stg: stg_authorize() request username field: '%s'", request->username->vp_strvalue);
147 if (request->password) {
148 DEBUG("rlm_stg: stg_authorize() request password field: '%s'", request->password->vp_strvalue);
150 // Here we need to define Framed-Protocol
151 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
153 DEBUG("rlm_stg: stg_authorize() Service-Type defined as '%s'", svc->vp_strvalue);
154 if (cli->Authorize((const char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue)) {
155 DEBUG("rlm_stg: stg_authorize() stg status: '%s'", cli->GetError().c_str());
156 return RLM_MODULE_REJECT;
159 DEBUG("rlm_stg: stg_authorize() Service-Type undefined");
160 if (cli->Authorize((const char *)request->username->vp_strvalue, "")) {
161 DEBUG("rlm_stg: stg_authorize() stg status: '%s'", cli->GetError().c_str());
162 return RLM_MODULE_REJECT;
165 pwd = pairmake("Cleartext-Password", cli->GetUserPassword().c_str(), T_OP_SET);
166 pairadd(&request->config_items, pwd);
167 //pairadd(&request->reply->vps, uname);
169 return RLM_MODULE_UPDATED;
173 * Authenticate the user with the given password.
175 static int stg_authenticate(void *, REQUEST *request)
177 /* quiet the compiler */
180 DEBUG("rlm_stg: stg_authenticate()");
182 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
184 DEBUG("rlm_stg: stg_authenticate() Service-Type defined as '%s'", svc->vp_strvalue);
185 if (cli->Authenticate((char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue)) {
186 DEBUG("rlm_stg: stg_authenticate() stg status: '%s'", cli->GetError().c_str());
187 return RLM_MODULE_REJECT;
190 DEBUG("rlm_stg: stg_authenticate() Service-Type undefined");
191 if (cli->Authenticate((char *)request->username->vp_strvalue, "")) {
192 DEBUG("rlm_stg: stg_authenticate() stg status: '%s'", cli->GetError().c_str());
193 return RLM_MODULE_REJECT;
197 return RLM_MODULE_NOOP;
201 * Massage the request before recording it or proxying it
203 static int stg_preacct(void *, REQUEST *)
205 DEBUG("rlm_stg: stg_preacct()");
207 return RLM_MODULE_OK;
211 * Write accounting information to this modules database.
213 static int stg_accounting(void *, REQUEST * request)
215 /* quiet the compiler */
219 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
221 DEBUG("rlm_stg: stg_accounting()");
223 sessid = pairfind(request->packet->vps, PW_ACCT_SESSION_ID);
225 DEBUG("rlm_stg: stg_accounting() Acct-Session-ID undefined");
226 return RLM_MODULE_FAIL;
228 sttype = pairfind(request->packet->vps, PW_ACCT_STATUS_TYPE);
230 DEBUG("Acct-Status-Type := %s", sttype->vp_strvalue);
232 DEBUG("rlm_stg: stg_accounting() Service-Type defined as '%s'", svc->vp_strvalue);
233 if (cli->Account((const char *)sttype->vp_strvalue, (const char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue, (const char *)sessid->vp_strvalue)) {
234 DEBUG("rlm_stg: stg_accounting error: '%s'", cli->GetError().c_str());
235 return RLM_MODULE_FAIL;
238 DEBUG("rlm_stg: stg_accounting() Service-Type undefined");
239 if (cli->Account((const char *)sttype->vp_strvalue, (const char *)request->username->vp_strvalue, "", (const char *)sessid->vp_strvalue)) {
240 DEBUG("rlm_stg: stg_accounting error: '%s'", cli->GetError().c_str());
241 return RLM_MODULE_FAIL;
245 DEBUG("Acct-Status-Type := NULL");
248 return RLM_MODULE_OK;
252 * See if a user is already logged in. Sets request->simul_count to the
253 * current session count for this user and sets request->simul_mpp to 2
254 * if it looks like a multilink attempt based on the requested IP
255 * address, otherwise leaves request->simul_mpp alone.
257 * Check twice. If on the first pass the user exceeds his
258 * max. number of logins, do a second pass and validate all
259 * logins by querying the terminal server (using eg. SNMP).
261 static int stg_checksimul(void *, REQUEST *request)
263 DEBUG("rlm_stg: stg_checksimul()");
265 request->simul_count=0;
267 return RLM_MODULE_OK;
270 static int stg_postauth(void *, REQUEST *request)
275 DEBUG("rlm_stg: stg_postauth()");
276 svc = pairfind(request->packet->vps, PW_SERVICE_TYPE);
278 DEBUG("rlm_stg: stg_postauth() Service-Type defined as '%s'", svc->vp_strvalue);
279 if (cli->PostAuthenticate((const char *)request->username->vp_strvalue, (const char *)svc->vp_strvalue)) {
280 DEBUG("rlm_stg: stg_postauth() error: '%s'", cli->GetError().c_str());
281 return RLM_MODULE_FAIL;
284 DEBUG("rlm_stg: stg_postauth() Service-Type undefined");
285 if (cli->PostAuthenticate((const char *)request->username->vp_strvalue, "")) {
286 DEBUG("rlm_stg: stg_postauth() error: '%s'", cli->GetError().c_str());
287 return RLM_MODULE_FAIL;
290 if (strncmp((const char *)svc->vp_strvalue, "Framed-User", 11) == 0) {
291 fip.s_addr = cli->GetFramedIP();
292 DEBUG("rlm_stg: stg_postauth() ip = '%s'", inet_ntostring(fip.s_addr).c_str());
293 fia = pairmake("Framed-IP-Address", inet_ntostring(fip.s_addr).c_str(), T_OP_SET);
294 pairadd(&request->reply->vps, fia);
297 return RLM_MODULE_UPDATED;
300 static int stg_detach(void *instance)
302 DEBUG("rlm_stg: stg_detach()");
304 free(((struct rlm_stg_t *)instance)->server);
305 free(((struct rlm_stg_t *)instance)->password);
311 * The module name should be the only globally exported symbol.
312 * That is, everything else should be 'static'.
314 * If the module needs to temporarily modify it's instantiation
315 * data, the type should be changed to RLM_TYPE_THREAD_UNSAFE.
316 * The server will then take care of ensuring that the module
317 * is single-threaded.
322 RLM_TYPE_THREAD_SAFE, /* type */
323 stg_instantiate, /* instantiation */
324 stg_detach, /* detach */
326 stg_authenticate, /* authentication */
327 stg_authorize, /* authorization */
328 stg_preacct, /* preaccounting */
329 stg_accounting, /* accounting */
330 stg_checksimul, /* checksimul */
331 NULL, /* pre-proxy */
332 NULL, /* post-proxy */
333 stg_postauth /* post-auth */