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6fc6879b | 1 | /* |
362bd35f | 2 | * RADIUS authentication server |
a1dd890a | 3 | * Copyright (c) 2005-2009, 2011-2014, Jouni Malinen <j@w1.fi> |
6fc6879b | 4 | * |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
7 | */ |
8 | ||
9 | #include "includes.h" | |
10 | #include <net/if.h> | |
11 | ||
12 | #include "common.h" | |
13 | #include "radius.h" | |
14 | #include "eloop.h" | |
6fc6879b JM |
15 | #include "eap_server/eap.h" |
16 | #include "radius_server.h" | |
17 | ||
362bd35f JM |
18 | /** |
19 | * RADIUS_SESSION_TIMEOUT - Session timeout in seconds | |
20 | */ | |
6fc6879b | 21 | #define RADIUS_SESSION_TIMEOUT 60 |
362bd35f JM |
22 | |
23 | /** | |
24 | * RADIUS_MAX_SESSION - Maximum number of active sessions | |
25 | */ | |
6fc6879b | 26 | #define RADIUS_MAX_SESSION 100 |
362bd35f JM |
27 | |
28 | /** | |
29 | * RADIUS_MAX_MSG_LEN - Maximum message length for incoming RADIUS messages | |
30 | */ | |
6fc6879b JM |
31 | #define RADIUS_MAX_MSG_LEN 3000 |
32 | ||
33 | static struct eapol_callbacks radius_server_eapol_cb; | |
34 | ||
35 | struct radius_client; | |
36 | struct radius_server_data; | |
37 | ||
362bd35f JM |
38 | /** |
39 | * struct radius_server_counters - RADIUS server statistics counters | |
40 | */ | |
6fc6879b JM |
41 | struct radius_server_counters { |
42 | u32 access_requests; | |
43 | u32 invalid_requests; | |
44 | u32 dup_access_requests; | |
45 | u32 access_accepts; | |
46 | u32 access_rejects; | |
47 | u32 access_challenges; | |
48 | u32 malformed_access_requests; | |
49 | u32 bad_authenticators; | |
50 | u32 packets_dropped; | |
51 | u32 unknown_types; | |
a1dd890a JM |
52 | |
53 | u32 acct_requests; | |
54 | u32 invalid_acct_requests; | |
55 | u32 acct_responses; | |
56 | u32 malformed_acct_requests; | |
57 | u32 acct_bad_authenticators; | |
58 | u32 unknown_acct_types; | |
6fc6879b JM |
59 | }; |
60 | ||
362bd35f JM |
61 | /** |
62 | * struct radius_session - Internal RADIUS server data for a session | |
63 | */ | |
6fc6879b JM |
64 | struct radius_session { |
65 | struct radius_session *next; | |
66 | struct radius_client *client; | |
67 | struct radius_server_data *server; | |
68 | unsigned int sess_id; | |
69 | struct eap_sm *eap; | |
70 | struct eap_eapol_interface *eap_if; | |
71 | ||
72 | struct radius_msg *last_msg; | |
73 | char *last_from_addr; | |
74 | int last_from_port; | |
75 | struct sockaddr_storage last_from; | |
76 | socklen_t last_fromlen; | |
77 | u8 last_identifier; | |
78 | struct radius_msg *last_reply; | |
79 | u8 last_authenticator[16]; | |
80 | }; | |
81 | ||
362bd35f JM |
82 | /** |
83 | * struct radius_client - Internal RADIUS server data for a client | |
84 | */ | |
6fc6879b JM |
85 | struct radius_client { |
86 | struct radius_client *next; | |
87 | struct in_addr addr; | |
88 | struct in_addr mask; | |
89 | #ifdef CONFIG_IPV6 | |
90 | struct in6_addr addr6; | |
91 | struct in6_addr mask6; | |
92 | #endif /* CONFIG_IPV6 */ | |
93 | char *shared_secret; | |
94 | int shared_secret_len; | |
95 | struct radius_session *sessions; | |
96 | struct radius_server_counters counters; | |
97 | }; | |
98 | ||
362bd35f JM |
99 | /** |
100 | * struct radius_server_data - Internal RADIUS server data | |
101 | */ | |
6fc6879b | 102 | struct radius_server_data { |
362bd35f JM |
103 | /** |
104 | * auth_sock - Socket for RADIUS authentication messages | |
105 | */ | |
6fc6879b | 106 | int auth_sock; |
362bd35f | 107 | |
a1dd890a JM |
108 | /** |
109 | * acct_sock - Socket for RADIUS accounting messages | |
110 | */ | |
111 | int acct_sock; | |
112 | ||
362bd35f JM |
113 | /** |
114 | * clients - List of authorized RADIUS clients | |
115 | */ | |
6fc6879b | 116 | struct radius_client *clients; |
362bd35f JM |
117 | |
118 | /** | |
119 | * next_sess_id - Next session identifier | |
120 | */ | |
6fc6879b | 121 | unsigned int next_sess_id; |
362bd35f JM |
122 | |
123 | /** | |
124 | * conf_ctx - Context pointer for callbacks | |
125 | * | |
126 | * This is used as the ctx argument in get_eap_user() calls. | |
127 | */ | |
6fc6879b | 128 | void *conf_ctx; |
362bd35f JM |
129 | |
130 | /** | |
131 | * num_sess - Number of active sessions | |
132 | */ | |
6fc6879b | 133 | int num_sess; |
362bd35f JM |
134 | |
135 | /** | |
136 | * eap_sim_db_priv - EAP-SIM/AKA database context | |
137 | * | |
138 | * This is passed to the EAP-SIM/AKA server implementation as a | |
139 | * callback context. | |
140 | */ | |
6fc6879b | 141 | void *eap_sim_db_priv; |
362bd35f JM |
142 | |
143 | /** | |
144 | * ssl_ctx - TLS context | |
145 | * | |
146 | * This is passed to the EAP server implementation as a callback | |
147 | * context for TLS operations. | |
148 | */ | |
6fc6879b | 149 | void *ssl_ctx; |
362bd35f JM |
150 | |
151 | /** | |
152 | * pac_opaque_encr_key - PAC-Opaque encryption key for EAP-FAST | |
153 | * | |
154 | * This parameter is used to set a key for EAP-FAST to encrypt the | |
155 | * PAC-Opaque data. It can be set to %NULL if EAP-FAST is not used. If | |
156 | * set, must point to a 16-octet key. | |
157 | */ | |
6fc6879b | 158 | u8 *pac_opaque_encr_key; |
362bd35f JM |
159 | |
160 | /** | |
161 | * eap_fast_a_id - EAP-FAST authority identity (A-ID) | |
162 | * | |
163 | * If EAP-FAST is not used, this can be set to %NULL. In theory, this | |
164 | * is a variable length field, but due to some existing implementations | |
165 | * requiring A-ID to be 16 octets in length, it is recommended to use | |
166 | * that length for the field to provide interoperability with deployed | |
167 | * peer implementations. | |
168 | */ | |
2d867244 | 169 | u8 *eap_fast_a_id; |
362bd35f JM |
170 | |
171 | /** | |
172 | * eap_fast_a_id_len - Length of eap_fast_a_id buffer in octets | |
173 | */ | |
2d867244 | 174 | size_t eap_fast_a_id_len; |
362bd35f JM |
175 | |
176 | /** | |
177 | * eap_fast_a_id_info - EAP-FAST authority identifier information | |
178 | * | |
179 | * This A-ID-Info contains a user-friendly name for the A-ID. For | |
180 | * example, this could be the enterprise and server names in | |
181 | * human-readable format. This field is encoded as UTF-8. If EAP-FAST | |
182 | * is not used, this can be set to %NULL. | |
183 | */ | |
2d867244 | 184 | char *eap_fast_a_id_info; |
362bd35f JM |
185 | |
186 | /** | |
187 | * eap_fast_prov - EAP-FAST provisioning modes | |
188 | * | |
189 | * 0 = provisioning disabled, 1 = only anonymous provisioning allowed, | |
190 | * 2 = only authenticated provisioning allowed, 3 = both provisioning | |
191 | * modes allowed. | |
192 | */ | |
378eae5e | 193 | int eap_fast_prov; |
362bd35f JM |
194 | |
195 | /** | |
196 | * pac_key_lifetime - EAP-FAST PAC-Key lifetime in seconds | |
197 | * | |
198 | * This is the hard limit on how long a provisioned PAC-Key can be | |
199 | * used. | |
200 | */ | |
a11c90a6 | 201 | int pac_key_lifetime; |
362bd35f JM |
202 | |
203 | /** | |
204 | * pac_key_refresh_time - EAP-FAST PAC-Key refresh time in seconds | |
205 | * | |
206 | * This is a soft limit on the PAC-Key. The server will automatically | |
207 | * generate a new PAC-Key when this number of seconds (or fewer) of the | |
208 | * lifetime remains. | |
209 | */ | |
a11c90a6 | 210 | int pac_key_refresh_time; |
362bd35f JM |
211 | |
212 | /** | |
213 | * eap_sim_aka_result_ind - EAP-SIM/AKA protected success indication | |
214 | * | |
215 | * This controls whether the protected success/failure indication | |
216 | * (AT_RESULT_IND) is used with EAP-SIM and EAP-AKA. | |
217 | */ | |
6fc6879b | 218 | int eap_sim_aka_result_ind; |
362bd35f JM |
219 | |
220 | /** | |
221 | * tnc - Trusted Network Connect (TNC) | |
222 | * | |
223 | * This controls whether TNC is enabled and will be required before the | |
224 | * peer is allowed to connect. Note: This is only used with EAP-TTLS | |
225 | * and EAP-FAST. If any other EAP method is enabled, the peer will be | |
226 | * allowed to connect without TNC. | |
227 | */ | |
c3e258ae | 228 | int tnc; |
362bd35f | 229 | |
df684d82 DH |
230 | /** |
231 | * pwd_group - The D-H group assigned for EAP-pwd | |
232 | * | |
233 | * If EAP-pwd is not used it can be set to zero. | |
234 | */ | |
235 | u16 pwd_group; | |
236 | ||
67fe933d JM |
237 | /** |
238 | * server_id - Server identity | |
239 | */ | |
240 | const char *server_id; | |
241 | ||
362bd35f JM |
242 | /** |
243 | * wps - Wi-Fi Protected Setup context | |
244 | * | |
245 | * If WPS is used with an external RADIUS server (which is quite | |
246 | * unlikely configuration), this is used to provide a pointer to WPS | |
247 | * context data. Normally, this can be set to %NULL. | |
248 | */ | |
ad08c363 | 249 | struct wps_context *wps; |
362bd35f JM |
250 | |
251 | /** | |
252 | * ipv6 - Whether to enable IPv6 support in the RADIUS server | |
253 | */ | |
6fc6879b | 254 | int ipv6; |
362bd35f JM |
255 | |
256 | /** | |
257 | * start_time - Timestamp of server start | |
258 | */ | |
58707176 | 259 | struct os_reltime start_time; |
362bd35f JM |
260 | |
261 | /** | |
262 | * counters - Statistics counters for server operations | |
263 | * | |
264 | * These counters are the sum over all clients. | |
265 | */ | |
6fc6879b | 266 | struct radius_server_counters counters; |
362bd35f JM |
267 | |
268 | /** | |
269 | * get_eap_user - Callback for fetching EAP user information | |
270 | * @ctx: Context data from conf_ctx | |
271 | * @identity: User identity | |
272 | * @identity_len: identity buffer length in octets | |
273 | * @phase2: Whether this is for Phase 2 identity | |
274 | * @user: Data structure for filling in the user information | |
275 | * Returns: 0 on success, -1 on failure | |
276 | * | |
277 | * This is used to fetch information from user database. The callback | |
278 | * will fill in information about allowed EAP methods and the user | |
279 | * password. The password field will be an allocated copy of the | |
280 | * password data and RADIUS server will free it after use. | |
281 | */ | |
6fc6879b JM |
282 | int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len, |
283 | int phase2, struct eap_user *user); | |
362bd35f JM |
284 | |
285 | /** | |
286 | * eap_req_id_text - Optional data for EAP-Request/Identity | |
287 | * | |
288 | * This can be used to configure an optional, displayable message that | |
289 | * will be sent in EAP-Request/Identity. This string can contain an | |
290 | * ASCII-0 character (nul) to separate network infromation per RFC | |
291 | * 4284. The actual string length is explicit provided in | |
292 | * eap_req_id_text_len since nul character will not be used as a string | |
293 | * terminator. | |
294 | */ | |
65d50f0a | 295 | char *eap_req_id_text; |
362bd35f JM |
296 | |
297 | /** | |
298 | * eap_req_id_text_len - Length of eap_req_id_text buffer in octets | |
299 | */ | |
65d50f0a | 300 | size_t eap_req_id_text_len; |
bb437f28 GD |
301 | |
302 | /* | |
303 | * msg_ctx - Context data for wpa_msg() calls | |
304 | */ | |
305 | void *msg_ctx; | |
505a3694 JM |
306 | |
307 | #ifdef CONFIG_RADIUS_TEST | |
308 | char *dump_msk_file; | |
309 | #endif /* CONFIG_RADIUS_TEST */ | |
6fc6879b JM |
310 | }; |
311 | ||
312 | ||
6fc6879b JM |
313 | #define RADIUS_DEBUG(args...) \ |
314 | wpa_printf(MSG_DEBUG, "RADIUS SRV: " args) | |
315 | #define RADIUS_ERROR(args...) \ | |
316 | wpa_printf(MSG_ERROR, "RADIUS SRV: " args) | |
317 | #define RADIUS_DUMP(args...) \ | |
318 | wpa_hexdump(MSG_MSGDUMP, "RADIUS SRV: " args) | |
319 | #define RADIUS_DUMP_ASCII(args...) \ | |
320 | wpa_hexdump_ascii(MSG_MSGDUMP, "RADIUS SRV: " args) | |
321 | ||
322 | ||
323 | static void radius_server_session_timeout(void *eloop_ctx, void *timeout_ctx); | |
f481459f JM |
324 | static void radius_server_session_remove_timeout(void *eloop_ctx, |
325 | void *timeout_ctx); | |
6fc6879b JM |
326 | |
327 | ||
328 | static struct radius_client * | |
329 | radius_server_get_client(struct radius_server_data *data, struct in_addr *addr, | |
330 | int ipv6) | |
331 | { | |
332 | struct radius_client *client = data->clients; | |
333 | ||
334 | while (client) { | |
335 | #ifdef CONFIG_IPV6 | |
336 | if (ipv6) { | |
337 | struct in6_addr *addr6; | |
338 | int i; | |
339 | ||
340 | addr6 = (struct in6_addr *) addr; | |
341 | for (i = 0; i < 16; i++) { | |
342 | if ((addr6->s6_addr[i] & | |
343 | client->mask6.s6_addr[i]) != | |
344 | (client->addr6.s6_addr[i] & | |
345 | client->mask6.s6_addr[i])) { | |
346 | i = 17; | |
347 | break; | |
348 | } | |
349 | } | |
350 | if (i == 16) { | |
351 | break; | |
352 | } | |
353 | } | |
354 | #endif /* CONFIG_IPV6 */ | |
355 | if (!ipv6 && (client->addr.s_addr & client->mask.s_addr) == | |
356 | (addr->s_addr & client->mask.s_addr)) { | |
357 | break; | |
358 | } | |
359 | ||
360 | client = client->next; | |
361 | } | |
362 | ||
363 | return client; | |
364 | } | |
365 | ||
366 | ||
367 | static struct radius_session * | |
368 | radius_server_get_session(struct radius_client *client, unsigned int sess_id) | |
369 | { | |
370 | struct radius_session *sess = client->sessions; | |
371 | ||
372 | while (sess) { | |
373 | if (sess->sess_id == sess_id) { | |
374 | break; | |
375 | } | |
376 | sess = sess->next; | |
377 | } | |
378 | ||
379 | return sess; | |
380 | } | |
381 | ||
382 | ||
383 | static void radius_server_session_free(struct radius_server_data *data, | |
384 | struct radius_session *sess) | |
385 | { | |
386 | eloop_cancel_timeout(radius_server_session_timeout, data, sess); | |
f481459f | 387 | eloop_cancel_timeout(radius_server_session_remove_timeout, data, sess); |
6fc6879b | 388 | eap_server_sm_deinit(sess->eap); |
9e7245bd | 389 | radius_msg_free(sess->last_msg); |
6fc6879b | 390 | os_free(sess->last_from_addr); |
9e7245bd | 391 | radius_msg_free(sess->last_reply); |
6fc6879b JM |
392 | os_free(sess); |
393 | data->num_sess--; | |
394 | } | |
395 | ||
396 | ||
6fc6879b JM |
397 | static void radius_server_session_remove(struct radius_server_data *data, |
398 | struct radius_session *sess) | |
399 | { | |
400 | struct radius_client *client = sess->client; | |
401 | struct radius_session *session, *prev; | |
402 | ||
403 | eloop_cancel_timeout(radius_server_session_remove_timeout, data, sess); | |
404 | ||
405 | prev = NULL; | |
406 | session = client->sessions; | |
407 | while (session) { | |
408 | if (session == sess) { | |
409 | if (prev == NULL) { | |
410 | client->sessions = sess->next; | |
411 | } else { | |
412 | prev->next = sess->next; | |
413 | } | |
414 | radius_server_session_free(data, sess); | |
415 | break; | |
416 | } | |
417 | prev = session; | |
418 | session = session->next; | |
419 | } | |
420 | } | |
421 | ||
422 | ||
423 | static void radius_server_session_remove_timeout(void *eloop_ctx, | |
424 | void *timeout_ctx) | |
425 | { | |
426 | struct radius_server_data *data = eloop_ctx; | |
427 | struct radius_session *sess = timeout_ctx; | |
428 | RADIUS_DEBUG("Removing completed session 0x%x", sess->sess_id); | |
429 | radius_server_session_remove(data, sess); | |
430 | } | |
431 | ||
432 | ||
433 | static void radius_server_session_timeout(void *eloop_ctx, void *timeout_ctx) | |
434 | { | |
435 | struct radius_server_data *data = eloop_ctx; | |
436 | struct radius_session *sess = timeout_ctx; | |
437 | ||
438 | RADIUS_DEBUG("Timing out authentication session 0x%x", sess->sess_id); | |
439 | radius_server_session_remove(data, sess); | |
440 | } | |
441 | ||
442 | ||
443 | static struct radius_session * | |
444 | radius_server_new_session(struct radius_server_data *data, | |
445 | struct radius_client *client) | |
446 | { | |
447 | struct radius_session *sess; | |
448 | ||
449 | if (data->num_sess >= RADIUS_MAX_SESSION) { | |
450 | RADIUS_DEBUG("Maximum number of existing session - no room " | |
451 | "for a new session"); | |
452 | return NULL; | |
453 | } | |
454 | ||
455 | sess = os_zalloc(sizeof(*sess)); | |
456 | if (sess == NULL) | |
457 | return NULL; | |
458 | ||
459 | sess->server = data; | |
460 | sess->client = client; | |
461 | sess->sess_id = data->next_sess_id++; | |
462 | sess->next = client->sessions; | |
463 | client->sessions = sess; | |
464 | eloop_register_timeout(RADIUS_SESSION_TIMEOUT, 0, | |
465 | radius_server_session_timeout, data, sess); | |
466 | data->num_sess++; | |
467 | return sess; | |
468 | } | |
469 | ||
470 | ||
471 | static struct radius_session * | |
472 | radius_server_get_new_session(struct radius_server_data *data, | |
473 | struct radius_client *client, | |
474 | struct radius_msg *msg) | |
475 | { | |
476 | u8 *user; | |
477 | size_t user_len; | |
478 | int res; | |
479 | struct radius_session *sess; | |
480 | struct eap_config eap_conf; | |
481 | ||
482 | RADIUS_DEBUG("Creating a new session"); | |
483 | ||
484 | user = os_malloc(256); | |
485 | if (user == NULL) { | |
486 | return NULL; | |
487 | } | |
488 | res = radius_msg_get_attr(msg, RADIUS_ATTR_USER_NAME, user, 256); | |
489 | if (res < 0 || res > 256) { | |
490 | RADIUS_DEBUG("Could not get User-Name"); | |
491 | os_free(user); | |
492 | return NULL; | |
493 | } | |
494 | user_len = res; | |
495 | RADIUS_DUMP_ASCII("User-Name", user, user_len); | |
496 | ||
497 | res = data->get_eap_user(data->conf_ctx, user, user_len, 0, NULL); | |
498 | os_free(user); | |
499 | ||
500 | if (res == 0) { | |
501 | RADIUS_DEBUG("Matching user entry found"); | |
502 | sess = radius_server_new_session(data, client); | |
503 | if (sess == NULL) { | |
504 | RADIUS_DEBUG("Failed to create a new session"); | |
505 | return NULL; | |
506 | } | |
507 | } else { | |
508 | RADIUS_DEBUG("User-Name not found from user database"); | |
509 | return NULL; | |
510 | } | |
511 | ||
512 | os_memset(&eap_conf, 0, sizeof(eap_conf)); | |
513 | eap_conf.ssl_ctx = data->ssl_ctx; | |
bb437f28 | 514 | eap_conf.msg_ctx = data->msg_ctx; |
6fc6879b JM |
515 | eap_conf.eap_sim_db_priv = data->eap_sim_db_priv; |
516 | eap_conf.backend_auth = TRUE; | |
517 | eap_conf.eap_server = 1; | |
518 | eap_conf.pac_opaque_encr_key = data->pac_opaque_encr_key; | |
519 | eap_conf.eap_fast_a_id = data->eap_fast_a_id; | |
2d867244 JM |
520 | eap_conf.eap_fast_a_id_len = data->eap_fast_a_id_len; |
521 | eap_conf.eap_fast_a_id_info = data->eap_fast_a_id_info; | |
378eae5e | 522 | eap_conf.eap_fast_prov = data->eap_fast_prov; |
a11c90a6 JM |
523 | eap_conf.pac_key_lifetime = data->pac_key_lifetime; |
524 | eap_conf.pac_key_refresh_time = data->pac_key_refresh_time; | |
6fc6879b | 525 | eap_conf.eap_sim_aka_result_ind = data->eap_sim_aka_result_ind; |
c3e258ae | 526 | eap_conf.tnc = data->tnc; |
ad08c363 | 527 | eap_conf.wps = data->wps; |
df684d82 | 528 | eap_conf.pwd_group = data->pwd_group; |
67fe933d JM |
529 | eap_conf.server_id = (const u8 *) data->server_id; |
530 | eap_conf.server_id_len = os_strlen(data->server_id); | |
6fc6879b JM |
531 | sess->eap = eap_server_sm_init(sess, &radius_server_eapol_cb, |
532 | &eap_conf); | |
533 | if (sess->eap == NULL) { | |
534 | RADIUS_DEBUG("Failed to initialize EAP state machine for the " | |
535 | "new session"); | |
536 | radius_server_session_free(data, sess); | |
537 | return NULL; | |
538 | } | |
539 | sess->eap_if = eap_get_interface(sess->eap); | |
540 | sess->eap_if->eapRestart = TRUE; | |
541 | sess->eap_if->portEnabled = TRUE; | |
542 | ||
543 | RADIUS_DEBUG("New session 0x%x initialized", sess->sess_id); | |
544 | ||
545 | return sess; | |
546 | } | |
547 | ||
548 | ||
549 | static struct radius_msg * | |
550 | radius_server_encapsulate_eap(struct radius_server_data *data, | |
551 | struct radius_client *client, | |
552 | struct radius_session *sess, | |
553 | struct radius_msg *request) | |
554 | { | |
555 | struct radius_msg *msg; | |
556 | int code; | |
557 | unsigned int sess_id; | |
1489e11a | 558 | struct radius_hdr *hdr = radius_msg_get_hdr(request); |
6fc6879b JM |
559 | |
560 | if (sess->eap_if->eapFail) { | |
561 | sess->eap_if->eapFail = FALSE; | |
562 | code = RADIUS_CODE_ACCESS_REJECT; | |
563 | } else if (sess->eap_if->eapSuccess) { | |
564 | sess->eap_if->eapSuccess = FALSE; | |
565 | code = RADIUS_CODE_ACCESS_ACCEPT; | |
566 | } else { | |
567 | sess->eap_if->eapReq = FALSE; | |
568 | code = RADIUS_CODE_ACCESS_CHALLENGE; | |
569 | } | |
570 | ||
1489e11a | 571 | msg = radius_msg_new(code, hdr->identifier); |
6fc6879b JM |
572 | if (msg == NULL) { |
573 | RADIUS_DEBUG("Failed to allocate reply message"); | |
574 | return NULL; | |
575 | } | |
576 | ||
577 | sess_id = htonl(sess->sess_id); | |
578 | if (code == RADIUS_CODE_ACCESS_CHALLENGE && | |
579 | !radius_msg_add_attr(msg, RADIUS_ATTR_STATE, | |
580 | (u8 *) &sess_id, sizeof(sess_id))) { | |
581 | RADIUS_DEBUG("Failed to add State attribute"); | |
582 | } | |
583 | ||
584 | if (sess->eap_if->eapReqData && | |
585 | !radius_msg_add_eap(msg, wpabuf_head(sess->eap_if->eapReqData), | |
586 | wpabuf_len(sess->eap_if->eapReqData))) { | |
587 | RADIUS_DEBUG("Failed to add EAP-Message attribute"); | |
588 | } | |
589 | ||
590 | if (code == RADIUS_CODE_ACCESS_ACCEPT && sess->eap_if->eapKeyData) { | |
591 | int len; | |
505a3694 JM |
592 | #ifdef CONFIG_RADIUS_TEST |
593 | if (data->dump_msk_file) { | |
594 | FILE *f; | |
595 | char buf[2 * 64 + 1]; | |
596 | f = fopen(data->dump_msk_file, "a"); | |
597 | if (f) { | |
598 | len = sess->eap_if->eapKeyDataLen; | |
599 | if (len > 64) | |
600 | len = 64; | |
601 | len = wpa_snprintf_hex( | |
602 | buf, sizeof(buf), | |
603 | sess->eap_if->eapKeyData, len); | |
604 | buf[len] = '\0'; | |
605 | fprintf(f, "%s\n", buf); | |
606 | fclose(f); | |
607 | } | |
608 | } | |
609 | #endif /* CONFIG_RADIUS_TEST */ | |
6fc6879b JM |
610 | if (sess->eap_if->eapKeyDataLen > 64) { |
611 | len = 32; | |
612 | } else { | |
613 | len = sess->eap_if->eapKeyDataLen / 2; | |
614 | } | |
1489e11a | 615 | if (!radius_msg_add_mppe_keys(msg, hdr->authenticator, |
6fc6879b JM |
616 | (u8 *) client->shared_secret, |
617 | client->shared_secret_len, | |
618 | sess->eap_if->eapKeyData + len, | |
619 | len, sess->eap_if->eapKeyData, | |
620 | len)) { | |
621 | RADIUS_DEBUG("Failed to add MPPE key attributes"); | |
622 | } | |
623 | } | |
624 | ||
625 | if (radius_msg_copy_attr(msg, request, RADIUS_ATTR_PROXY_STATE) < 0) { | |
626 | RADIUS_DEBUG("Failed to copy Proxy-State attribute(s)"); | |
627 | radius_msg_free(msg); | |
6fc6879b JM |
628 | return NULL; |
629 | } | |
630 | ||
631 | if (radius_msg_finish_srv(msg, (u8 *) client->shared_secret, | |
632 | client->shared_secret_len, | |
1489e11a | 633 | hdr->authenticator) < 0) { |
6fc6879b JM |
634 | RADIUS_DEBUG("Failed to add Message-Authenticator attribute"); |
635 | } | |
636 | ||
637 | return msg; | |
638 | } | |
639 | ||
640 | ||
641 | static int radius_server_reject(struct radius_server_data *data, | |
642 | struct radius_client *client, | |
643 | struct radius_msg *request, | |
644 | struct sockaddr *from, socklen_t fromlen, | |
645 | const char *from_addr, int from_port) | |
646 | { | |
647 | struct radius_msg *msg; | |
648 | int ret = 0; | |
649 | struct eap_hdr eapfail; | |
1489e11a JM |
650 | struct wpabuf *buf; |
651 | struct radius_hdr *hdr = radius_msg_get_hdr(request); | |
6fc6879b JM |
652 | |
653 | RADIUS_DEBUG("Reject invalid request from %s:%d", | |
654 | from_addr, from_port); | |
655 | ||
1489e11a | 656 | msg = radius_msg_new(RADIUS_CODE_ACCESS_REJECT, hdr->identifier); |
6fc6879b JM |
657 | if (msg == NULL) { |
658 | return -1; | |
659 | } | |
660 | ||
661 | os_memset(&eapfail, 0, sizeof(eapfail)); | |
662 | eapfail.code = EAP_CODE_FAILURE; | |
663 | eapfail.identifier = 0; | |
664 | eapfail.length = host_to_be16(sizeof(eapfail)); | |
665 | ||
666 | if (!radius_msg_add_eap(msg, (u8 *) &eapfail, sizeof(eapfail))) { | |
667 | RADIUS_DEBUG("Failed to add EAP-Message attribute"); | |
668 | } | |
669 | ||
670 | if (radius_msg_copy_attr(msg, request, RADIUS_ATTR_PROXY_STATE) < 0) { | |
671 | RADIUS_DEBUG("Failed to copy Proxy-State attribute(s)"); | |
672 | radius_msg_free(msg); | |
6fc6879b JM |
673 | return -1; |
674 | } | |
675 | ||
676 | if (radius_msg_finish_srv(msg, (u8 *) client->shared_secret, | |
677 | client->shared_secret_len, | |
1489e11a JM |
678 | hdr->authenticator) < |
679 | 0) { | |
6fc6879b JM |
680 | RADIUS_DEBUG("Failed to add Message-Authenticator attribute"); |
681 | } | |
682 | ||
683 | if (wpa_debug_level <= MSG_MSGDUMP) { | |
684 | radius_msg_dump(msg); | |
685 | } | |
686 | ||
687 | data->counters.access_rejects++; | |
688 | client->counters.access_rejects++; | |
1489e11a JM |
689 | buf = radius_msg_get_buf(msg); |
690 | if (sendto(data->auth_sock, wpabuf_head(buf), wpabuf_len(buf), 0, | |
6fc6879b | 691 | (struct sockaddr *) from, sizeof(*from)) < 0) { |
61323e70 | 692 | wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s", strerror(errno)); |
6fc6879b JM |
693 | ret = -1; |
694 | } | |
695 | ||
696 | radius_msg_free(msg); | |
6fc6879b JM |
697 | |
698 | return ret; | |
699 | } | |
700 | ||
701 | ||
702 | static int radius_server_request(struct radius_server_data *data, | |
703 | struct radius_msg *msg, | |
704 | struct sockaddr *from, socklen_t fromlen, | |
705 | struct radius_client *client, | |
706 | const char *from_addr, int from_port, | |
707 | struct radius_session *force_sess) | |
708 | { | |
e100828b | 709 | struct wpabuf *eap = NULL; |
6fc6879b JM |
710 | int res, state_included = 0; |
711 | u8 statebuf[4]; | |
712 | unsigned int state; | |
713 | struct radius_session *sess; | |
714 | struct radius_msg *reply; | |
7598210b | 715 | int is_complete = 0; |
6fc6879b JM |
716 | |
717 | if (force_sess) | |
718 | sess = force_sess; | |
719 | else { | |
720 | res = radius_msg_get_attr(msg, RADIUS_ATTR_STATE, statebuf, | |
721 | sizeof(statebuf)); | |
722 | state_included = res >= 0; | |
723 | if (res == sizeof(statebuf)) { | |
724 | state = WPA_GET_BE32(statebuf); | |
725 | sess = radius_server_get_session(client, state); | |
726 | } else { | |
727 | sess = NULL; | |
728 | } | |
729 | } | |
730 | ||
731 | if (sess) { | |
732 | RADIUS_DEBUG("Request for session 0x%x", sess->sess_id); | |
733 | } else if (state_included) { | |
734 | RADIUS_DEBUG("State attribute included but no session found"); | |
735 | radius_server_reject(data, client, msg, from, fromlen, | |
736 | from_addr, from_port); | |
737 | return -1; | |
738 | } else { | |
739 | sess = radius_server_get_new_session(data, client, msg); | |
740 | if (sess == NULL) { | |
741 | RADIUS_DEBUG("Could not create a new session"); | |
742 | radius_server_reject(data, client, msg, from, fromlen, | |
743 | from_addr, from_port); | |
744 | return -1; | |
745 | } | |
746 | } | |
747 | ||
748 | if (sess->last_from_port == from_port && | |
1489e11a JM |
749 | sess->last_identifier == radius_msg_get_hdr(msg)->identifier && |
750 | os_memcmp(sess->last_authenticator, | |
751 | radius_msg_get_hdr(msg)->authenticator, 16) == 0) { | |
6fc6879b JM |
752 | RADIUS_DEBUG("Duplicate message from %s", from_addr); |
753 | data->counters.dup_access_requests++; | |
754 | client->counters.dup_access_requests++; | |
755 | ||
756 | if (sess->last_reply) { | |
1489e11a JM |
757 | struct wpabuf *buf; |
758 | buf = radius_msg_get_buf(sess->last_reply); | |
759 | res = sendto(data->auth_sock, wpabuf_head(buf), | |
760 | wpabuf_len(buf), 0, | |
6fc6879b JM |
761 | (struct sockaddr *) from, fromlen); |
762 | if (res < 0) { | |
61323e70 JM |
763 | wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s", |
764 | strerror(errno)); | |
6fc6879b JM |
765 | } |
766 | return 0; | |
767 | } | |
768 | ||
769 | RADIUS_DEBUG("No previous reply available for duplicate " | |
770 | "message"); | |
771 | return -1; | |
772 | } | |
773 | ||
e100828b | 774 | eap = radius_msg_get_eap(msg); |
6fc6879b JM |
775 | if (eap == NULL) { |
776 | RADIUS_DEBUG("No EAP-Message in RADIUS packet from %s", | |
777 | from_addr); | |
778 | data->counters.packets_dropped++; | |
779 | client->counters.packets_dropped++; | |
780 | return -1; | |
781 | } | |
782 | ||
e100828b | 783 | RADIUS_DUMP("Received EAP data", wpabuf_head(eap), wpabuf_len(eap)); |
6fc6879b JM |
784 | |
785 | /* FIX: if Code is Request, Success, or Failure, send Access-Reject; | |
786 | * RFC3579 Sect. 2.6.2. | |
787 | * Include EAP-Response/Nak with no preferred method if | |
788 | * code == request. | |
789 | * If code is not 1-4, discard the packet silently. | |
790 | * Or is this already done by the EAP state machine? */ | |
791 | ||
792 | wpabuf_free(sess->eap_if->eapRespData); | |
e100828b | 793 | sess->eap_if->eapRespData = eap; |
6fc6879b JM |
794 | sess->eap_if->eapResp = TRUE; |
795 | eap_server_sm_step(sess->eap); | |
796 | ||
797 | if ((sess->eap_if->eapReq || sess->eap_if->eapSuccess || | |
798 | sess->eap_if->eapFail) && sess->eap_if->eapReqData) { | |
799 | RADIUS_DUMP("EAP data from the state machine", | |
800 | wpabuf_head(sess->eap_if->eapReqData), | |
801 | wpabuf_len(sess->eap_if->eapReqData)); | |
802 | } else if (sess->eap_if->eapFail) { | |
803 | RADIUS_DEBUG("No EAP data from the state machine, but eapFail " | |
804 | "set"); | |
805 | } else if (eap_sm_method_pending(sess->eap)) { | |
9e7245bd | 806 | radius_msg_free(sess->last_msg); |
6fc6879b JM |
807 | sess->last_msg = msg; |
808 | sess->last_from_port = from_port; | |
809 | os_free(sess->last_from_addr); | |
810 | sess->last_from_addr = os_strdup(from_addr); | |
811 | sess->last_fromlen = fromlen; | |
812 | os_memcpy(&sess->last_from, from, fromlen); | |
813 | return -2; | |
814 | } else { | |
815 | RADIUS_DEBUG("No EAP data from the state machine - ignore this" | |
816 | " Access-Request silently (assuming it was a " | |
817 | "duplicate)"); | |
818 | data->counters.packets_dropped++; | |
819 | client->counters.packets_dropped++; | |
820 | return -1; | |
821 | } | |
822 | ||
7598210b AB |
823 | if (sess->eap_if->eapSuccess || sess->eap_if->eapFail) |
824 | is_complete = 1; | |
825 | ||
6fc6879b JM |
826 | reply = radius_server_encapsulate_eap(data, client, sess, msg); |
827 | ||
828 | if (reply) { | |
1489e11a JM |
829 | struct wpabuf *buf; |
830 | struct radius_hdr *hdr; | |
831 | ||
6fc6879b JM |
832 | RADIUS_DEBUG("Reply to %s:%d", from_addr, from_port); |
833 | if (wpa_debug_level <= MSG_MSGDUMP) { | |
834 | radius_msg_dump(reply); | |
835 | } | |
836 | ||
1489e11a | 837 | switch (radius_msg_get_hdr(reply)->code) { |
6fc6879b JM |
838 | case RADIUS_CODE_ACCESS_ACCEPT: |
839 | data->counters.access_accepts++; | |
840 | client->counters.access_accepts++; | |
841 | break; | |
842 | case RADIUS_CODE_ACCESS_REJECT: | |
843 | data->counters.access_rejects++; | |
844 | client->counters.access_rejects++; | |
845 | break; | |
846 | case RADIUS_CODE_ACCESS_CHALLENGE: | |
847 | data->counters.access_challenges++; | |
848 | client->counters.access_challenges++; | |
849 | break; | |
850 | } | |
1489e11a JM |
851 | buf = radius_msg_get_buf(reply); |
852 | res = sendto(data->auth_sock, wpabuf_head(buf), | |
853 | wpabuf_len(buf), 0, | |
6fc6879b JM |
854 | (struct sockaddr *) from, fromlen); |
855 | if (res < 0) { | |
61323e70 JM |
856 | wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s", |
857 | strerror(errno)); | |
6fc6879b | 858 | } |
9e7245bd | 859 | radius_msg_free(sess->last_reply); |
6fc6879b JM |
860 | sess->last_reply = reply; |
861 | sess->last_from_port = from_port; | |
1489e11a JM |
862 | hdr = radius_msg_get_hdr(msg); |
863 | sess->last_identifier = hdr->identifier; | |
864 | os_memcpy(sess->last_authenticator, hdr->authenticator, 16); | |
6fc6879b JM |
865 | } else { |
866 | data->counters.packets_dropped++; | |
867 | client->counters.packets_dropped++; | |
868 | } | |
869 | ||
7598210b | 870 | if (is_complete) { |
6fc6879b JM |
871 | RADIUS_DEBUG("Removing completed session 0x%x after timeout", |
872 | sess->sess_id); | |
873 | eloop_cancel_timeout(radius_server_session_remove_timeout, | |
874 | data, sess); | |
875 | eloop_register_timeout(10, 0, | |
876 | radius_server_session_remove_timeout, | |
877 | data, sess); | |
878 | } | |
879 | ||
880 | return 0; | |
881 | } | |
882 | ||
883 | ||
884 | static void radius_server_receive_auth(int sock, void *eloop_ctx, | |
885 | void *sock_ctx) | |
886 | { | |
887 | struct radius_server_data *data = eloop_ctx; | |
888 | u8 *buf = NULL; | |
5a641ae0 JM |
889 | union { |
890 | struct sockaddr_storage ss; | |
891 | struct sockaddr_in sin; | |
892 | #ifdef CONFIG_IPV6 | |
893 | struct sockaddr_in6 sin6; | |
894 | #endif /* CONFIG_IPV6 */ | |
895 | } from; | |
6fc6879b JM |
896 | socklen_t fromlen; |
897 | int len; | |
898 | struct radius_client *client = NULL; | |
899 | struct radius_msg *msg = NULL; | |
900 | char abuf[50]; | |
901 | int from_port = 0; | |
902 | ||
903 | buf = os_malloc(RADIUS_MAX_MSG_LEN); | |
904 | if (buf == NULL) { | |
905 | goto fail; | |
906 | } | |
907 | ||
908 | fromlen = sizeof(from); | |
909 | len = recvfrom(sock, buf, RADIUS_MAX_MSG_LEN, 0, | |
5a641ae0 | 910 | (struct sockaddr *) &from.ss, &fromlen); |
6fc6879b | 911 | if (len < 0) { |
61323e70 JM |
912 | wpa_printf(MSG_INFO, "recvfrom[radius_server]: %s", |
913 | strerror(errno)); | |
6fc6879b JM |
914 | goto fail; |
915 | } | |
916 | ||
917 | #ifdef CONFIG_IPV6 | |
918 | if (data->ipv6) { | |
5a641ae0 JM |
919 | if (inet_ntop(AF_INET6, &from.sin6.sin6_addr, abuf, |
920 | sizeof(abuf)) == NULL) | |
6fc6879b | 921 | abuf[0] = '\0'; |
5a641ae0 | 922 | from_port = ntohs(from.sin6.sin6_port); |
6fc6879b JM |
923 | RADIUS_DEBUG("Received %d bytes from %s:%d", |
924 | len, abuf, from_port); | |
925 | ||
926 | client = radius_server_get_client(data, | |
927 | (struct in_addr *) | |
5a641ae0 | 928 | &from.sin6.sin6_addr, 1); |
6fc6879b JM |
929 | } |
930 | #endif /* CONFIG_IPV6 */ | |
931 | ||
932 | if (!data->ipv6) { | |
5a641ae0 JM |
933 | os_strlcpy(abuf, inet_ntoa(from.sin.sin_addr), sizeof(abuf)); |
934 | from_port = ntohs(from.sin.sin_port); | |
6fc6879b JM |
935 | RADIUS_DEBUG("Received %d bytes from %s:%d", |
936 | len, abuf, from_port); | |
937 | ||
5a641ae0 | 938 | client = radius_server_get_client(data, &from.sin.sin_addr, 0); |
6fc6879b JM |
939 | } |
940 | ||
941 | RADIUS_DUMP("Received data", buf, len); | |
942 | ||
943 | if (client == NULL) { | |
944 | RADIUS_DEBUG("Unknown client %s - packet ignored", abuf); | |
945 | data->counters.invalid_requests++; | |
946 | goto fail; | |
947 | } | |
948 | ||
949 | msg = radius_msg_parse(buf, len); | |
950 | if (msg == NULL) { | |
951 | RADIUS_DEBUG("Parsing incoming RADIUS frame failed"); | |
952 | data->counters.malformed_access_requests++; | |
953 | client->counters.malformed_access_requests++; | |
954 | goto fail; | |
955 | } | |
956 | ||
957 | os_free(buf); | |
958 | buf = NULL; | |
959 | ||
960 | if (wpa_debug_level <= MSG_MSGDUMP) { | |
961 | radius_msg_dump(msg); | |
962 | } | |
963 | ||
1489e11a JM |
964 | if (radius_msg_get_hdr(msg)->code != RADIUS_CODE_ACCESS_REQUEST) { |
965 | RADIUS_DEBUG("Unexpected RADIUS code %d", | |
966 | radius_msg_get_hdr(msg)->code); | |
6fc6879b JM |
967 | data->counters.unknown_types++; |
968 | client->counters.unknown_types++; | |
969 | goto fail; | |
970 | } | |
971 | ||
972 | data->counters.access_requests++; | |
973 | client->counters.access_requests++; | |
974 | ||
975 | if (radius_msg_verify_msg_auth(msg, (u8 *) client->shared_secret, | |
976 | client->shared_secret_len, NULL)) { | |
977 | RADIUS_DEBUG("Invalid Message-Authenticator from %s", abuf); | |
978 | data->counters.bad_authenticators++; | |
979 | client->counters.bad_authenticators++; | |
980 | goto fail; | |
981 | } | |
982 | ||
983 | if (radius_server_request(data, msg, (struct sockaddr *) &from, | |
984 | fromlen, client, abuf, from_port, NULL) == | |
985 | -2) | |
986 | return; /* msg was stored with the session */ | |
987 | ||
988 | fail: | |
9e7245bd | 989 | radius_msg_free(msg); |
6fc6879b JM |
990 | os_free(buf); |
991 | } | |
992 | ||
993 | ||
a1dd890a JM |
994 | static void radius_server_receive_acct(int sock, void *eloop_ctx, |
995 | void *sock_ctx) | |
996 | { | |
997 | struct radius_server_data *data = eloop_ctx; | |
998 | u8 *buf = NULL; | |
999 | union { | |
1000 | struct sockaddr_storage ss; | |
1001 | struct sockaddr_in sin; | |
1002 | #ifdef CONFIG_IPV6 | |
1003 | struct sockaddr_in6 sin6; | |
1004 | #endif /* CONFIG_IPV6 */ | |
1005 | } from; | |
1006 | socklen_t fromlen; | |
1007 | int len, res; | |
1008 | struct radius_client *client = NULL; | |
1009 | struct radius_msg *msg = NULL, *resp = NULL; | |
1010 | char abuf[50]; | |
1011 | int from_port = 0; | |
1012 | struct radius_hdr *hdr; | |
1013 | struct wpabuf *rbuf; | |
1014 | ||
1015 | buf = os_malloc(RADIUS_MAX_MSG_LEN); | |
1016 | if (buf == NULL) { | |
1017 | goto fail; | |
1018 | } | |
1019 | ||
1020 | fromlen = sizeof(from); | |
1021 | len = recvfrom(sock, buf, RADIUS_MAX_MSG_LEN, 0, | |
1022 | (struct sockaddr *) &from.ss, &fromlen); | |
1023 | if (len < 0) { | |
1024 | wpa_printf(MSG_INFO, "recvfrom[radius_server]: %s", | |
1025 | strerror(errno)); | |
1026 | goto fail; | |
1027 | } | |
1028 | ||
1029 | #ifdef CONFIG_IPV6 | |
1030 | if (data->ipv6) { | |
1031 | if (inet_ntop(AF_INET6, &from.sin6.sin6_addr, abuf, | |
1032 | sizeof(abuf)) == NULL) | |
1033 | abuf[0] = '\0'; | |
1034 | from_port = ntohs(from.sin6.sin6_port); | |
1035 | RADIUS_DEBUG("Received %d bytes from %s:%d", | |
1036 | len, abuf, from_port); | |
1037 | ||
1038 | client = radius_server_get_client(data, | |
1039 | (struct in_addr *) | |
1040 | &from.sin6.sin6_addr, 1); | |
1041 | } | |
1042 | #endif /* CONFIG_IPV6 */ | |
1043 | ||
1044 | if (!data->ipv6) { | |
1045 | os_strlcpy(abuf, inet_ntoa(from.sin.sin_addr), sizeof(abuf)); | |
1046 | from_port = ntohs(from.sin.sin_port); | |
1047 | RADIUS_DEBUG("Received %d bytes from %s:%d", | |
1048 | len, abuf, from_port); | |
1049 | ||
1050 | client = radius_server_get_client(data, &from.sin.sin_addr, 0); | |
1051 | } | |
1052 | ||
1053 | RADIUS_DUMP("Received data", buf, len); | |
1054 | ||
1055 | if (client == NULL) { | |
1056 | RADIUS_DEBUG("Unknown client %s - packet ignored", abuf); | |
1057 | data->counters.invalid_acct_requests++; | |
1058 | goto fail; | |
1059 | } | |
1060 | ||
1061 | msg = radius_msg_parse(buf, len); | |
1062 | if (msg == NULL) { | |
1063 | RADIUS_DEBUG("Parsing incoming RADIUS frame failed"); | |
1064 | data->counters.malformed_acct_requests++; | |
1065 | client->counters.malformed_acct_requests++; | |
1066 | goto fail; | |
1067 | } | |
1068 | ||
1069 | os_free(buf); | |
1070 | buf = NULL; | |
1071 | ||
1072 | if (wpa_debug_level <= MSG_MSGDUMP) { | |
1073 | radius_msg_dump(msg); | |
1074 | } | |
1075 | ||
1076 | if (radius_msg_get_hdr(msg)->code != RADIUS_CODE_ACCOUNTING_REQUEST) { | |
1077 | RADIUS_DEBUG("Unexpected RADIUS code %d", | |
1078 | radius_msg_get_hdr(msg)->code); | |
1079 | data->counters.unknown_acct_types++; | |
1080 | client->counters.unknown_acct_types++; | |
1081 | goto fail; | |
1082 | } | |
1083 | ||
1084 | data->counters.acct_requests++; | |
1085 | client->counters.acct_requests++; | |
1086 | ||
1087 | if (radius_msg_verify_acct_req(msg, (u8 *) client->shared_secret, | |
1088 | client->shared_secret_len)) { | |
1089 | RADIUS_DEBUG("Invalid Authenticator from %s", abuf); | |
1090 | data->counters.acct_bad_authenticators++; | |
1091 | client->counters.acct_bad_authenticators++; | |
1092 | goto fail; | |
1093 | } | |
1094 | ||
1095 | /* TODO: Write accounting information to a file or database */ | |
1096 | ||
1097 | hdr = radius_msg_get_hdr(msg); | |
1098 | ||
1099 | resp = radius_msg_new(RADIUS_CODE_ACCOUNTING_RESPONSE, hdr->identifier); | |
1100 | if (resp == NULL) | |
1101 | goto fail; | |
1102 | ||
1103 | radius_msg_finish_acct_resp(resp, (u8 *) client->shared_secret, | |
1104 | client->shared_secret_len, | |
1105 | hdr->authenticator); | |
1106 | ||
1107 | RADIUS_DEBUG("Reply to %s:%d", abuf, from_port); | |
1108 | if (wpa_debug_level <= MSG_MSGDUMP) { | |
1109 | radius_msg_dump(resp); | |
1110 | } | |
1111 | rbuf = radius_msg_get_buf(resp); | |
1112 | data->counters.acct_responses++; | |
1113 | client->counters.acct_responses++; | |
1114 | res = sendto(data->acct_sock, wpabuf_head(rbuf), wpabuf_len(rbuf), 0, | |
1115 | (struct sockaddr *) &from.ss, fromlen); | |
1116 | if (res < 0) { | |
1117 | wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s", | |
1118 | strerror(errno)); | |
1119 | } | |
1120 | ||
1121 | fail: | |
1122 | radius_msg_free(resp); | |
1123 | radius_msg_free(msg); | |
1124 | os_free(buf); | |
1125 | } | |
1126 | ||
1127 | ||
5cd89c26 JM |
1128 | static int radius_server_disable_pmtu_discovery(int s) |
1129 | { | |
1130 | int r = -1; | |
1131 | #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) | |
1132 | /* Turn off Path MTU discovery on IPv4/UDP sockets. */ | |
1133 | int action = IP_PMTUDISC_DONT; | |
1134 | r = setsockopt(s, IPPROTO_IP, IP_MTU_DISCOVER, &action, | |
1135 | sizeof(action)); | |
1136 | if (r == -1) | |
1137 | wpa_printf(MSG_ERROR, "Failed to set IP_MTU_DISCOVER: " | |
1138 | "%s", strerror(errno)); | |
1139 | #endif | |
1140 | return r; | |
1141 | } | |
1142 | ||
1143 | ||
6fc6879b JM |
1144 | static int radius_server_open_socket(int port) |
1145 | { | |
1146 | int s; | |
1147 | struct sockaddr_in addr; | |
1148 | ||
1149 | s = socket(PF_INET, SOCK_DGRAM, 0); | |
1150 | if (s < 0) { | |
61323e70 | 1151 | wpa_printf(MSG_INFO, "RADIUS: socket: %s", strerror(errno)); |
6fc6879b JM |
1152 | return -1; |
1153 | } | |
1154 | ||
5cd89c26 JM |
1155 | radius_server_disable_pmtu_discovery(s); |
1156 | ||
6fc6879b JM |
1157 | os_memset(&addr, 0, sizeof(addr)); |
1158 | addr.sin_family = AF_INET; | |
1159 | addr.sin_port = htons(port); | |
1160 | if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { | |
61323e70 | 1161 | wpa_printf(MSG_INFO, "RADIUS: bind: %s", strerror(errno)); |
6fc6879b JM |
1162 | close(s); |
1163 | return -1; | |
1164 | } | |
1165 | ||
1166 | return s; | |
1167 | } | |
1168 | ||
1169 | ||
1170 | #ifdef CONFIG_IPV6 | |
1171 | static int radius_server_open_socket6(int port) | |
1172 | { | |
1173 | int s; | |
1174 | struct sockaddr_in6 addr; | |
1175 | ||
1176 | s = socket(PF_INET6, SOCK_DGRAM, 0); | |
1177 | if (s < 0) { | |
61323e70 JM |
1178 | wpa_printf(MSG_INFO, "RADIUS: socket[IPv6]: %s", |
1179 | strerror(errno)); | |
6fc6879b JM |
1180 | return -1; |
1181 | } | |
1182 | ||
1183 | os_memset(&addr, 0, sizeof(addr)); | |
1184 | addr.sin6_family = AF_INET6; | |
1185 | os_memcpy(&addr.sin6_addr, &in6addr_any, sizeof(in6addr_any)); | |
1186 | addr.sin6_port = htons(port); | |
1187 | if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { | |
61323e70 | 1188 | wpa_printf(MSG_INFO, "RADIUS: bind: %s", strerror(errno)); |
6fc6879b JM |
1189 | close(s); |
1190 | return -1; | |
1191 | } | |
1192 | ||
1193 | return s; | |
1194 | } | |
1195 | #endif /* CONFIG_IPV6 */ | |
1196 | ||
1197 | ||
1198 | static void radius_server_free_sessions(struct radius_server_data *data, | |
1199 | struct radius_session *sessions) | |
1200 | { | |
1201 | struct radius_session *session, *prev; | |
1202 | ||
1203 | session = sessions; | |
1204 | while (session) { | |
1205 | prev = session; | |
1206 | session = session->next; | |
1207 | radius_server_session_free(data, prev); | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | ||
1212 | static void radius_server_free_clients(struct radius_server_data *data, | |
1213 | struct radius_client *clients) | |
1214 | { | |
1215 | struct radius_client *client, *prev; | |
1216 | ||
1217 | client = clients; | |
1218 | while (client) { | |
1219 | prev = client; | |
1220 | client = client->next; | |
1221 | ||
1222 | radius_server_free_sessions(data, prev->sessions); | |
1223 | os_free(prev->shared_secret); | |
1224 | os_free(prev); | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | ||
1229 | static struct radius_client * | |
1230 | radius_server_read_clients(const char *client_file, int ipv6) | |
1231 | { | |
1232 | FILE *f; | |
1233 | const int buf_size = 1024; | |
1234 | char *buf, *pos; | |
1235 | struct radius_client *clients, *tail, *entry; | |
1236 | int line = 0, mask, failed = 0, i; | |
1237 | struct in_addr addr; | |
1238 | #ifdef CONFIG_IPV6 | |
1239 | struct in6_addr addr6; | |
1240 | #endif /* CONFIG_IPV6 */ | |
1241 | unsigned int val; | |
1242 | ||
1243 | f = fopen(client_file, "r"); | |
1244 | if (f == NULL) { | |
1245 | RADIUS_ERROR("Could not open client file '%s'", client_file); | |
1246 | return NULL; | |
1247 | } | |
1248 | ||
1249 | buf = os_malloc(buf_size); | |
1250 | if (buf == NULL) { | |
1251 | fclose(f); | |
1252 | return NULL; | |
1253 | } | |
1254 | ||
1255 | clients = tail = NULL; | |
1256 | while (fgets(buf, buf_size, f)) { | |
1257 | /* Configuration file format: | |
1258 | * 192.168.1.0/24 secret | |
1259 | * 192.168.1.2 secret | |
1260 | * fe80::211:22ff:fe33:4455/64 secretipv6 | |
1261 | */ | |
1262 | line++; | |
1263 | buf[buf_size - 1] = '\0'; | |
1264 | pos = buf; | |
1265 | while (*pos != '\0' && *pos != '\n') | |
1266 | pos++; | |
1267 | if (*pos == '\n') | |
1268 | *pos = '\0'; | |
1269 | if (*buf == '\0' || *buf == '#') | |
1270 | continue; | |
1271 | ||
1272 | pos = buf; | |
1273 | while ((*pos >= '0' && *pos <= '9') || *pos == '.' || | |
1274 | (*pos >= 'a' && *pos <= 'f') || *pos == ':' || | |
1275 | (*pos >= 'A' && *pos <= 'F')) { | |
1276 | pos++; | |
1277 | } | |
1278 | ||
1279 | if (*pos == '\0') { | |
1280 | failed = 1; | |
1281 | break; | |
1282 | } | |
1283 | ||
1284 | if (*pos == '/') { | |
1285 | char *end; | |
1286 | *pos++ = '\0'; | |
1287 | mask = strtol(pos, &end, 10); | |
1288 | if ((pos == end) || | |
1289 | (mask < 0 || mask > (ipv6 ? 128 : 32))) { | |
1290 | failed = 1; | |
1291 | break; | |
1292 | } | |
1293 | pos = end; | |
1294 | } else { | |
1295 | mask = ipv6 ? 128 : 32; | |
1296 | *pos++ = '\0'; | |
1297 | } | |
1298 | ||
1299 | if (!ipv6 && inet_aton(buf, &addr) == 0) { | |
1300 | failed = 1; | |
1301 | break; | |
1302 | } | |
1303 | #ifdef CONFIG_IPV6 | |
1304 | if (ipv6 && inet_pton(AF_INET6, buf, &addr6) <= 0) { | |
1305 | if (inet_pton(AF_INET, buf, &addr) <= 0) { | |
1306 | failed = 1; | |
1307 | break; | |
1308 | } | |
1309 | /* Convert IPv4 address to IPv6 */ | |
1310 | if (mask <= 32) | |
1311 | mask += (128 - 32); | |
1312 | os_memset(addr6.s6_addr, 0, 10); | |
1313 | addr6.s6_addr[10] = 0xff; | |
1314 | addr6.s6_addr[11] = 0xff; | |
1315 | os_memcpy(addr6.s6_addr + 12, (char *) &addr.s_addr, | |
1316 | 4); | |
1317 | } | |
1318 | #endif /* CONFIG_IPV6 */ | |
1319 | ||
1320 | while (*pos == ' ' || *pos == '\t') { | |
1321 | pos++; | |
1322 | } | |
1323 | ||
1324 | if (*pos == '\0') { | |
1325 | failed = 1; | |
1326 | break; | |
1327 | } | |
1328 | ||
1329 | entry = os_zalloc(sizeof(*entry)); | |
1330 | if (entry == NULL) { | |
1331 | failed = 1; | |
1332 | break; | |
1333 | } | |
1334 | entry->shared_secret = os_strdup(pos); | |
1335 | if (entry->shared_secret == NULL) { | |
1336 | failed = 1; | |
1337 | os_free(entry); | |
1338 | break; | |
1339 | } | |
1340 | entry->shared_secret_len = os_strlen(entry->shared_secret); | |
1341 | entry->addr.s_addr = addr.s_addr; | |
1342 | if (!ipv6) { | |
1343 | val = 0; | |
1344 | for (i = 0; i < mask; i++) | |
1345 | val |= 1 << (31 - i); | |
1346 | entry->mask.s_addr = htonl(val); | |
1347 | } | |
1348 | #ifdef CONFIG_IPV6 | |
1349 | if (ipv6) { | |
1350 | int offset = mask / 8; | |
1351 | ||
1352 | os_memcpy(entry->addr6.s6_addr, addr6.s6_addr, 16); | |
1353 | os_memset(entry->mask6.s6_addr, 0xff, offset); | |
1354 | val = 0; | |
1355 | for (i = 0; i < (mask % 8); i++) | |
1356 | val |= 1 << (7 - i); | |
1357 | if (offset < 16) | |
1358 | entry->mask6.s6_addr[offset] = val; | |
1359 | } | |
1360 | #endif /* CONFIG_IPV6 */ | |
1361 | ||
1362 | if (tail == NULL) { | |
1363 | clients = tail = entry; | |
1364 | } else { | |
1365 | tail->next = entry; | |
1366 | tail = entry; | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | if (failed) { | |
1371 | RADIUS_ERROR("Invalid line %d in '%s'", line, client_file); | |
1372 | radius_server_free_clients(NULL, clients); | |
1373 | clients = NULL; | |
1374 | } | |
1375 | ||
1376 | os_free(buf); | |
1377 | fclose(f); | |
1378 | ||
1379 | return clients; | |
1380 | } | |
1381 | ||
1382 | ||
362bd35f JM |
1383 | /** |
1384 | * radius_server_init - Initialize RADIUS server | |
1385 | * @conf: Configuration for the RADIUS server | |
1386 | * Returns: Pointer to private RADIUS server context or %NULL on failure | |
1387 | * | |
1388 | * This initializes a RADIUS server instance and returns a context pointer that | |
1389 | * will be used in other calls to the RADIUS server module. The server can be | |
1390 | * deinitialize by calling radius_server_deinit(). | |
1391 | */ | |
6fc6879b JM |
1392 | struct radius_server_data * |
1393 | radius_server_init(struct radius_server_conf *conf) | |
1394 | { | |
1395 | struct radius_server_data *data; | |
1396 | ||
1397 | #ifndef CONFIG_IPV6 | |
1398 | if (conf->ipv6) { | |
61323e70 | 1399 | wpa_printf(MSG_ERROR, "RADIUS server compiled without IPv6 support"); |
6fc6879b JM |
1400 | return NULL; |
1401 | } | |
1402 | #endif /* CONFIG_IPV6 */ | |
1403 | ||
1404 | data = os_zalloc(sizeof(*data)); | |
1405 | if (data == NULL) | |
1406 | return NULL; | |
1407 | ||
58707176 | 1408 | os_get_reltime(&data->start_time); |
6fc6879b JM |
1409 | data->conf_ctx = conf->conf_ctx; |
1410 | data->eap_sim_db_priv = conf->eap_sim_db_priv; | |
1411 | data->ssl_ctx = conf->ssl_ctx; | |
bb437f28 | 1412 | data->msg_ctx = conf->msg_ctx; |
6fc6879b JM |
1413 | data->ipv6 = conf->ipv6; |
1414 | if (conf->pac_opaque_encr_key) { | |
1415 | data->pac_opaque_encr_key = os_malloc(16); | |
1416 | os_memcpy(data->pac_opaque_encr_key, conf->pac_opaque_encr_key, | |
1417 | 16); | |
1418 | } | |
2d867244 JM |
1419 | if (conf->eap_fast_a_id) { |
1420 | data->eap_fast_a_id = os_malloc(conf->eap_fast_a_id_len); | |
1421 | if (data->eap_fast_a_id) { | |
1422 | os_memcpy(data->eap_fast_a_id, conf->eap_fast_a_id, | |
1423 | conf->eap_fast_a_id_len); | |
1424 | data->eap_fast_a_id_len = conf->eap_fast_a_id_len; | |
1425 | } | |
1426 | } | |
1427 | if (conf->eap_fast_a_id_info) | |
1428 | data->eap_fast_a_id_info = os_strdup(conf->eap_fast_a_id_info); | |
378eae5e | 1429 | data->eap_fast_prov = conf->eap_fast_prov; |
a11c90a6 JM |
1430 | data->pac_key_lifetime = conf->pac_key_lifetime; |
1431 | data->pac_key_refresh_time = conf->pac_key_refresh_time; | |
6fc6879b JM |
1432 | data->get_eap_user = conf->get_eap_user; |
1433 | data->eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind; | |
c3e258ae | 1434 | data->tnc = conf->tnc; |
ad08c363 | 1435 | data->wps = conf->wps; |
df684d82 | 1436 | data->pwd_group = conf->pwd_group; |
67fe933d | 1437 | data->server_id = conf->server_id; |
65d50f0a JM |
1438 | if (conf->eap_req_id_text) { |
1439 | data->eap_req_id_text = os_malloc(conf->eap_req_id_text_len); | |
1440 | if (data->eap_req_id_text) { | |
1441 | os_memcpy(data->eap_req_id_text, conf->eap_req_id_text, | |
1442 | conf->eap_req_id_text_len); | |
1443 | data->eap_req_id_text_len = conf->eap_req_id_text_len; | |
1444 | } | |
1445 | } | |
6fc6879b | 1446 | |
505a3694 JM |
1447 | #ifdef CONFIG_RADIUS_TEST |
1448 | if (conf->dump_msk_file) | |
1449 | data->dump_msk_file = os_strdup(conf->dump_msk_file); | |
1450 | #endif /* CONFIG_RADIUS_TEST */ | |
1451 | ||
6fc6879b JM |
1452 | data->clients = radius_server_read_clients(conf->client_file, |
1453 | conf->ipv6); | |
1454 | if (data->clients == NULL) { | |
61323e70 | 1455 | wpa_printf(MSG_ERROR, "No RADIUS clients configured"); |
6fc6879b JM |
1456 | radius_server_deinit(data); |
1457 | return NULL; | |
1458 | } | |
1459 | ||
1460 | #ifdef CONFIG_IPV6 | |
1461 | if (conf->ipv6) | |
1462 | data->auth_sock = radius_server_open_socket6(conf->auth_port); | |
1463 | else | |
1464 | #endif /* CONFIG_IPV6 */ | |
1465 | data->auth_sock = radius_server_open_socket(conf->auth_port); | |
1466 | if (data->auth_sock < 0) { | |
61323e70 | 1467 | wpa_printf(MSG_ERROR, "Failed to open UDP socket for RADIUS authentication server"); |
6fc6879b JM |
1468 | radius_server_deinit(data); |
1469 | return NULL; | |
1470 | } | |
1471 | if (eloop_register_read_sock(data->auth_sock, | |
1472 | radius_server_receive_auth, | |
1473 | data, NULL)) { | |
1474 | radius_server_deinit(data); | |
1475 | return NULL; | |
1476 | } | |
1477 | ||
a1dd890a JM |
1478 | if (conf->acct_port) { |
1479 | #ifdef CONFIG_IPV6 | |
1480 | if (conf->ipv6) | |
1481 | data->acct_sock = radius_server_open_socket6( | |
1482 | conf->acct_port); | |
1483 | else | |
1484 | #endif /* CONFIG_IPV6 */ | |
1485 | data->acct_sock = radius_server_open_socket(conf->acct_port); | |
1486 | if (data->acct_sock < 0) { | |
1487 | wpa_printf(MSG_ERROR, "Failed to open UDP socket for RADIUS accounting server"); | |
1488 | radius_server_deinit(data); | |
1489 | return NULL; | |
1490 | } | |
1491 | if (eloop_register_read_sock(data->acct_sock, | |
1492 | radius_server_receive_acct, | |
1493 | data, NULL)) { | |
1494 | radius_server_deinit(data); | |
1495 | return NULL; | |
1496 | } | |
1497 | } else { | |
1498 | data->acct_sock = -1; | |
1499 | } | |
1500 | ||
6fc6879b JM |
1501 | return data; |
1502 | } | |
1503 | ||
1504 | ||
362bd35f JM |
1505 | /** |
1506 | * radius_server_deinit - Deinitialize RADIUS server | |
1507 | * @data: RADIUS server context from radius_server_init() | |
1508 | */ | |
6fc6879b JM |
1509 | void radius_server_deinit(struct radius_server_data *data) |
1510 | { | |
1511 | if (data == NULL) | |
1512 | return; | |
1513 | ||
1514 | if (data->auth_sock >= 0) { | |
1515 | eloop_unregister_read_sock(data->auth_sock); | |
1516 | close(data->auth_sock); | |
1517 | } | |
1518 | ||
a1dd890a JM |
1519 | if (data->acct_sock >= 0) { |
1520 | eloop_unregister_read_sock(data->acct_sock); | |
1521 | close(data->acct_sock); | |
1522 | } | |
1523 | ||
6fc6879b JM |
1524 | radius_server_free_clients(data, data->clients); |
1525 | ||
1526 | os_free(data->pac_opaque_encr_key); | |
1527 | os_free(data->eap_fast_a_id); | |
2d867244 | 1528 | os_free(data->eap_fast_a_id_info); |
65d50f0a | 1529 | os_free(data->eap_req_id_text); |
505a3694 JM |
1530 | #ifdef CONFIG_RADIUS_TEST |
1531 | os_free(data->dump_msk_file); | |
1532 | #endif /* CONFIG_RADIUS_TEST */ | |
6fc6879b JM |
1533 | os_free(data); |
1534 | } | |
1535 | ||
1536 | ||
362bd35f JM |
1537 | /** |
1538 | * radius_server_get_mib - Get RADIUS server MIB information | |
1539 | * @data: RADIUS server context from radius_server_init() | |
1540 | * @buf: Buffer for returning the MIB data in text format | |
1541 | * @buflen: buf length in octets | |
1542 | * Returns: Number of octets written into buf | |
1543 | */ | |
6fc6879b JM |
1544 | int radius_server_get_mib(struct radius_server_data *data, char *buf, |
1545 | size_t buflen) | |
1546 | { | |
1547 | int ret, uptime; | |
1548 | unsigned int idx; | |
1549 | char *end, *pos; | |
58707176 | 1550 | struct os_reltime now; |
6fc6879b JM |
1551 | struct radius_client *cli; |
1552 | ||
1553 | /* RFC 2619 - RADIUS Authentication Server MIB */ | |
1554 | ||
1555 | if (data == NULL || buflen == 0) | |
1556 | return 0; | |
1557 | ||
1558 | pos = buf; | |
1559 | end = buf + buflen; | |
1560 | ||
58707176 | 1561 | os_get_reltime(&now); |
6fc6879b JM |
1562 | uptime = (now.sec - data->start_time.sec) * 100 + |
1563 | ((now.usec - data->start_time.usec) / 10000) % 100; | |
1564 | ret = os_snprintf(pos, end - pos, | |
1565 | "RADIUS-AUTH-SERVER-MIB\n" | |
1566 | "radiusAuthServIdent=hostapd\n" | |
1567 | "radiusAuthServUpTime=%d\n" | |
1568 | "radiusAuthServResetTime=0\n" | |
1569 | "radiusAuthServConfigReset=4\n", | |
1570 | uptime); | |
1571 | if (ret < 0 || ret >= end - pos) { | |
1572 | *pos = '\0'; | |
1573 | return pos - buf; | |
1574 | } | |
1575 | pos += ret; | |
1576 | ||
1577 | ret = os_snprintf(pos, end - pos, | |
1578 | "radiusAuthServTotalAccessRequests=%u\n" | |
1579 | "radiusAuthServTotalInvalidRequests=%u\n" | |
1580 | "radiusAuthServTotalDupAccessRequests=%u\n" | |
1581 | "radiusAuthServTotalAccessAccepts=%u\n" | |
1582 | "radiusAuthServTotalAccessRejects=%u\n" | |
1583 | "radiusAuthServTotalAccessChallenges=%u\n" | |
1584 | "radiusAuthServTotalMalformedAccessRequests=%u\n" | |
1585 | "radiusAuthServTotalBadAuthenticators=%u\n" | |
1586 | "radiusAuthServTotalPacketsDropped=%u\n" | |
a1dd890a JM |
1587 | "radiusAuthServTotalUnknownTypes=%u\n" |
1588 | "radiusAccServTotalRequests=%u\n" | |
1589 | "radiusAccServTotalInvalidRequests=%u\n" | |
1590 | "radiusAccServTotalResponses=%u\n" | |
1591 | "radiusAccServTotalMalformedRequests=%u\n" | |
1592 | "radiusAccServTotalBadAuthenticators=%u\n" | |
1593 | "radiusAccServTotalUnknownTypes=%u\n", | |
6fc6879b JM |
1594 | data->counters.access_requests, |
1595 | data->counters.invalid_requests, | |
1596 | data->counters.dup_access_requests, | |
1597 | data->counters.access_accepts, | |
1598 | data->counters.access_rejects, | |
1599 | data->counters.access_challenges, | |
1600 | data->counters.malformed_access_requests, | |
1601 | data->counters.bad_authenticators, | |
1602 | data->counters.packets_dropped, | |
a1dd890a JM |
1603 | data->counters.unknown_types, |
1604 | data->counters.acct_requests, | |
1605 | data->counters.invalid_acct_requests, | |
1606 | data->counters.acct_responses, | |
1607 | data->counters.malformed_acct_requests, | |
1608 | data->counters.acct_bad_authenticators, | |
1609 | data->counters.unknown_acct_types); | |
6fc6879b JM |
1610 | if (ret < 0 || ret >= end - pos) { |
1611 | *pos = '\0'; | |
1612 | return pos - buf; | |
1613 | } | |
1614 | pos += ret; | |
1615 | ||
1616 | for (cli = data->clients, idx = 0; cli; cli = cli->next, idx++) { | |
1617 | char abuf[50], mbuf[50]; | |
1618 | #ifdef CONFIG_IPV6 | |
1619 | if (data->ipv6) { | |
1620 | if (inet_ntop(AF_INET6, &cli->addr6, abuf, | |
1621 | sizeof(abuf)) == NULL) | |
1622 | abuf[0] = '\0'; | |
1623 | if (inet_ntop(AF_INET6, &cli->mask6, abuf, | |
1624 | sizeof(mbuf)) == NULL) | |
1625 | mbuf[0] = '\0'; | |
1626 | } | |
1627 | #endif /* CONFIG_IPV6 */ | |
1628 | if (!data->ipv6) { | |
1629 | os_strlcpy(abuf, inet_ntoa(cli->addr), sizeof(abuf)); | |
1630 | os_strlcpy(mbuf, inet_ntoa(cli->mask), sizeof(mbuf)); | |
1631 | } | |
1632 | ||
1633 | ret = os_snprintf(pos, end - pos, | |
1634 | "radiusAuthClientIndex=%u\n" | |
1635 | "radiusAuthClientAddress=%s/%s\n" | |
1636 | "radiusAuthServAccessRequests=%u\n" | |
1637 | "radiusAuthServDupAccessRequests=%u\n" | |
1638 | "radiusAuthServAccessAccepts=%u\n" | |
1639 | "radiusAuthServAccessRejects=%u\n" | |
1640 | "radiusAuthServAccessChallenges=%u\n" | |
1641 | "radiusAuthServMalformedAccessRequests=%u\n" | |
1642 | "radiusAuthServBadAuthenticators=%u\n" | |
1643 | "radiusAuthServPacketsDropped=%u\n" | |
a1dd890a JM |
1644 | "radiusAuthServUnknownTypes=%u\n" |
1645 | "radiusAccServTotalRequests=%u\n" | |
1646 | "radiusAccServTotalInvalidRequests=%u\n" | |
1647 | "radiusAccServTotalResponses=%u\n" | |
1648 | "radiusAccServTotalMalformedRequests=%u\n" | |
1649 | "radiusAccServTotalBadAuthenticators=%u\n" | |
1650 | "radiusAccServTotalUnknownTypes=%u\n", | |
6fc6879b JM |
1651 | idx, |
1652 | abuf, mbuf, | |
1653 | cli->counters.access_requests, | |
1654 | cli->counters.dup_access_requests, | |
1655 | cli->counters.access_accepts, | |
1656 | cli->counters.access_rejects, | |
1657 | cli->counters.access_challenges, | |
1658 | cli->counters.malformed_access_requests, | |
1659 | cli->counters.bad_authenticators, | |
1660 | cli->counters.packets_dropped, | |
a1dd890a JM |
1661 | cli->counters.unknown_types, |
1662 | cli->counters.acct_requests, | |
1663 | cli->counters.invalid_acct_requests, | |
1664 | cli->counters.acct_responses, | |
1665 | cli->counters.malformed_acct_requests, | |
1666 | cli->counters.acct_bad_authenticators, | |
1667 | cli->counters.unknown_acct_types); | |
6fc6879b JM |
1668 | if (ret < 0 || ret >= end - pos) { |
1669 | *pos = '\0'; | |
1670 | return pos - buf; | |
1671 | } | |
1672 | pos += ret; | |
1673 | } | |
1674 | ||
1675 | return pos - buf; | |
1676 | } | |
1677 | ||
1678 | ||
1679 | static int radius_server_get_eap_user(void *ctx, const u8 *identity, | |
1680 | size_t identity_len, int phase2, | |
1681 | struct eap_user *user) | |
1682 | { | |
1683 | struct radius_session *sess = ctx; | |
1684 | struct radius_server_data *data = sess->server; | |
1685 | ||
1686 | return data->get_eap_user(data->conf_ctx, identity, identity_len, | |
1687 | phase2, user); | |
1688 | } | |
1689 | ||
1690 | ||
65d50f0a JM |
1691 | static const char * radius_server_get_eap_req_id_text(void *ctx, size_t *len) |
1692 | { | |
1693 | struct radius_session *sess = ctx; | |
1694 | struct radius_server_data *data = sess->server; | |
1695 | *len = data->eap_req_id_text_len; | |
1696 | return data->eap_req_id_text; | |
1697 | } | |
1698 | ||
1699 | ||
6fc6879b JM |
1700 | static struct eapol_callbacks radius_server_eapol_cb = |
1701 | { | |
1702 | .get_eap_user = radius_server_get_eap_user, | |
65d50f0a | 1703 | .get_eap_req_id_text = radius_server_get_eap_req_id_text, |
6fc6879b JM |
1704 | }; |
1705 | ||
1706 | ||
362bd35f JM |
1707 | /** |
1708 | * radius_server_eap_pending_cb - Pending EAP data notification | |
1709 | * @data: RADIUS server context from radius_server_init() | |
1710 | * @ctx: Pending EAP context pointer | |
1711 | * | |
1712 | * This function is used to notify EAP server module that a pending operation | |
1713 | * has been completed and processing of the EAP session can proceed. | |
1714 | */ | |
6fc6879b JM |
1715 | void radius_server_eap_pending_cb(struct radius_server_data *data, void *ctx) |
1716 | { | |
1717 | struct radius_client *cli; | |
1718 | struct radius_session *s, *sess = NULL; | |
1719 | struct radius_msg *msg; | |
1720 | ||
1721 | if (data == NULL) | |
1722 | return; | |
1723 | ||
1724 | for (cli = data->clients; cli; cli = cli->next) { | |
1725 | for (s = cli->sessions; s; s = s->next) { | |
1726 | if (s->eap == ctx && s->last_msg) { | |
1727 | sess = s; | |
1728 | break; | |
1729 | } | |
1730 | if (sess) | |
1731 | break; | |
1732 | } | |
1733 | if (sess) | |
1734 | break; | |
1735 | } | |
1736 | ||
1737 | if (sess == NULL) { | |
1738 | RADIUS_DEBUG("No session matched callback ctx"); | |
1739 | return; | |
1740 | } | |
1741 | ||
1742 | msg = sess->last_msg; | |
1743 | sess->last_msg = NULL; | |
1744 | eap_sm_pending_cb(sess->eap); | |
1745 | if (radius_server_request(data, msg, | |
1746 | (struct sockaddr *) &sess->last_from, | |
1747 | sess->last_fromlen, cli, | |
1748 | sess->last_from_addr, | |
1749 | sess->last_from_port, sess) == -2) | |
1750 | return; /* msg was stored with the session */ | |
1751 | ||
1752 | radius_msg_free(msg); | |
6fc6879b | 1753 | } |