2 * Copyright (C) 2006-2009 Stig Venaas <venaas@uninett.no>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
9 /* Code contributions from:
11 * Arne Schwabe <schwabe at uni-paderborn.de>
12 * Maja Wolniewicz <mgw@umk.pl>
13 * Simon Leinen <simon.leinen@switch.ch>
14 * Stefan Winter <stefan.winter@restena.lu>
17 /* For UDP there is one server instance consisting of udpserverrd and udpserverth
18 * rd is responsible for init and launching wr
19 * For TLS there is a server instance that launches tlsserverrd for each TLS peer
20 * each tlsserverrd launches tlsserverwr
21 * For each UDP/TLS peer there is clientrd and clientwr, clientwr is responsible
22 * for init and launching rd
24 * serverrd will receive a request, processes it and puts it in the requestq of
25 * the appropriate clientwr
26 * clientwr monitors its requestq and sends requests
27 * clientrd looks for responses, processes them and puts them in the replyq of
28 * the peer the request came from
29 * serverwr monitors its reply and sends replies
31 * In addition to the main thread, we have:
32 * If UDP peers are configured, there will be 2 + 2 * #peers UDP threads
33 * If TLS peers are configured, there will initially be 2 * #peers TLS threads
34 * For each TLS peer connecting to us there will be 2 more TLS threads
35 * This is only for connected peers
36 * Example: With 3 UDP peers and 30 TLS peers, there will be a max of
37 * 1 + (2 + 2 * 3) + (2 * 30) + (2 * 30) = 129 threads
41 * May segfault when dtls connections go down? More testing needed
42 * Remove expired stuff from clients request list?
43 * Multiple outgoing connections if not enough IDs? (multiple servers per conf?)
44 * Useful for TCP accounting? Now we require separate server config for alt port
48 #include <sys/socket.h>
49 #include <netinet/in.h>
58 #include <sys/types.h>
61 #include <arpa/inet.h>
65 #include <openssl/ssl.h>
66 #include <openssl/rand.h>
67 #include <openssl/err.h>
68 #include <openssl/md5.h>
74 #include "radsecproxy.h"
80 static struct options options;
81 static struct list *clconfs, *srvconfs;
82 static struct list *realms;
83 static struct hash *rewriteconfs;
85 static pthread_mutex_t *ssl_locks = NULL;
86 static long *ssl_lock_count;
89 static const struct protodefs *protodefs[RAD_PROTOCOUNT];
91 /* minimum required declarations to avoid reordering code */
92 struct realm *adddynamicrealmserver(struct realm *realm, char *id);
93 int dynamicconfig(struct server *server);
94 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
95 void freerealm(struct realm *realm);
96 void freeclsrvconf(struct clsrvconf *conf);
97 void freerq(struct request *rq);
98 void freerqoutdata(struct rqout *rqout);
99 void rmclientrq(struct request *rq, uint8_t id);
101 static const struct protodefs *(*protoinits[])(uint8_t) = { udpinit, tlsinit, tcpinit, dtlsinit };
103 uint8_t protoname2int(const char *name) {
106 for (i = 0; i < RAD_PROTOCOUNT; i++)
107 if (protodefs[i] && protodefs[i]->name && !strcasecmp(protodefs[i]->name, name))
112 /* callbacks for making OpenSSL thread safe */
113 unsigned long ssl_thread_id() {
114 return (unsigned long)pthread_self();
117 void ssl_locking_callback(int mode, int type, const char *file, int line) {
118 if (mode & CRYPTO_LOCK) {
119 pthread_mutex_lock(&ssl_locks[type]);
120 ssl_lock_count[type]++;
122 pthread_mutex_unlock(&ssl_locks[type]);
125 /* returns 1 if the len first bits are equal, else 0 */
126 int prefixmatch(void *a1, void *a2, uint8_t len) {
127 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
128 uint8_t r, l = len / 8;
129 if (l && memcmp(a1, a2, l))
134 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
137 /* returns next config with matching address, or NULL */
138 struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur, uint8_t server_p) {
139 struct list_node *entry;
140 struct clsrvconf *conf;
142 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
143 conf = (struct clsrvconf *)entry->data;
144 if (conf->type == type && addressmatches(conf->hostports, addr, server_p)) {
153 struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
154 return find_conf(type, addr, clconfs, cur, 0);
157 struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
158 return find_conf(type, addr, srvconfs, cur, 1);
161 /* returns next config of given type, or NULL */
162 struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
163 struct list_node *entry;
164 struct clsrvconf *conf;
166 for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
167 conf = (struct clsrvconf *)entry->data;
168 if (conf->type == type) {
177 struct gqueue *newqueue() {
180 q = malloc(sizeof(struct gqueue));
182 debugx(1, DBG_ERR, "malloc failed");
183 q->entries = list_create();
185 debugx(1, DBG_ERR, "malloc failed");
186 pthread_mutex_init(&q->mutex, NULL);
187 pthread_cond_init(&q->cond, NULL);
191 void removequeue(struct gqueue *q) {
192 struct list_node *entry;
196 pthread_mutex_lock(&q->mutex);
197 for (entry = list_first(q->entries); entry; entry = list_next(entry))
198 freerq((struct request *)entry);
199 list_destroy(q->entries);
200 pthread_cond_destroy(&q->cond);
201 pthread_mutex_unlock(&q->mutex);
202 pthread_mutex_destroy(&q->mutex);
206 void freebios(struct gqueue *q) {
209 pthread_mutex_lock(&q->mutex);
210 while ((bio = (BIO *)list_shift(q->entries)))
212 pthread_mutex_unlock(&q->mutex);
216 struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
217 struct client *new = malloc(sizeof(struct client));
220 debug(DBG_ERR, "malloc failed");
225 pthread_mutex_lock(conf->lock);
226 if (!conf->clients) {
227 conf->clients = list_create();
228 if (!conf->clients) {
230 pthread_mutex_unlock(conf->lock);
231 debug(DBG_ERR, "malloc failed");
236 memset(new, 0, sizeof(struct client));
238 if (conf->pdef->addclient)
239 conf->pdef->addclient(new);
241 new->replyq = newqueue();
242 list_push(conf->clients, new);
244 pthread_mutex_unlock(conf->lock);
248 void removeclientrqs_sendrq_freeserver_lock(uint8_t wantlock) {
249 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
252 pthread_mutex_lock(&lock);
254 pthread_mutex_unlock(&lock);
257 void removeclientrqs(struct client *client) {
262 removeclientrqs_sendrq_freeserver_lock(1);
263 for (i = 0; i < MAX_REQUESTS; i++) {
268 rqout = rq->to->requests + rq->newid;
269 pthread_mutex_lock(rqout->lock);
270 if (rqout->rq == rq) /* still pointing to our request */
271 freerqoutdata(rqout);
272 pthread_mutex_unlock(rqout->lock);
276 removeclientrqs_sendrq_freeserver_lock(0);
279 void removelockedclient(struct client *client) {
280 struct clsrvconf *conf;
284 removeclientrqs(client);
285 removequeue(client->replyq);
286 list_removedata(conf->clients, client);
292 void removeclient(struct client *client) {
293 struct clsrvconf *conf;
299 pthread_mutex_lock(conf->lock);
300 removelockedclient(client);
301 pthread_mutex_unlock(conf->lock);
304 void freeserver(struct server *server, uint8_t destroymutex) {
305 struct rqout *rqout, *end;
310 removeclientrqs_sendrq_freeserver_lock(1);
311 if (server->requests) {
312 rqout = server->requests;
313 for (end = rqout + MAX_REQUESTS; rqout < end; rqout++) {
315 rqout->rq->to = NULL;
316 freerqoutdata(rqout);
317 pthread_mutex_destroy(rqout->lock);
320 free(server->requests);
323 freebios(server->rbios);
324 free(server->dynamiclookuparg);
326 SSL_free(server->ssl);
328 pthread_mutex_destroy(&server->lock);
329 pthread_cond_destroy(&server->newrq_cond);
330 pthread_mutex_destroy(&server->newrq_mutex);
332 removeclientrqs_sendrq_freeserver_lock(0);
336 int addserver(struct clsrvconf *conf) {
340 debug(DBG_ERR, "addserver: currently works with just one server per conf");
343 conf->servers = malloc(sizeof(struct server));
344 if (!conf->servers) {
345 debug(DBG_ERR, "malloc failed");
348 memset(conf->servers, 0, sizeof(struct server));
349 conf->servers->conf = conf;
352 if (conf->type == RAD_DTLS)
353 conf->servers->rbios = newqueue();
355 conf->pdef->setsrcres();
357 conf->servers->sock = -1;
358 if (conf->pdef->addserverextra)
359 conf->pdef->addserverextra(conf);
361 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct rqout));
362 if (!conf->servers->requests) {
363 debug(DBG_ERR, "malloc failed");
366 for (i = 0; i < MAX_REQUESTS; i++) {
367 conf->servers->requests[i].lock = malloc(sizeof(pthread_mutex_t));
368 if (!conf->servers->requests[i].lock) {
369 debug(DBG_ERR, "malloc failed");
372 if (pthread_mutex_init(conf->servers->requests[i].lock, NULL)) {
373 debug(DBG_ERR, "mutex init failed");
374 free(conf->servers->requests[i].lock);
375 conf->servers->requests[i].lock = NULL;
379 if (pthread_mutex_init(&conf->servers->lock, NULL)) {
380 debug(DBG_ERR, "mutex init failed");
383 conf->servers->newrq = 0;
384 if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
385 debug(DBG_ERR, "mutex init failed");
386 pthread_mutex_destroy(&conf->servers->lock);
389 if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
390 debug(DBG_ERR, "mutex init failed");
391 pthread_mutex_destroy(&conf->servers->newrq_mutex);
392 pthread_mutex_destroy(&conf->servers->lock);
399 freeserver(conf->servers, 0);
400 conf->servers = NULL;
404 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
406 if (ATTRTYPE(attrs) == type)
408 length -= ATTRLEN(attrs);
409 attrs += ATTRLEN(attrs);
414 struct request *newrqref(struct request *rq) {
420 void freerq(struct request *rq) {
423 debug(DBG_DBG, "freerq: called with refcount %d", rq->refcount);
426 if (rq->origusername)
427 free(rq->origusername);
433 radmsg_free(rq->msg);
437 void freerqoutdata(struct rqout *rqout) {
441 if (rqout->rq->buf) {
442 free(rqout->rq->buf);
443 rqout->rq->buf = NULL;
449 memset(&rqout->expiry, 0, sizeof(struct timeval));
452 void sendrq(struct request *rq) {
456 removeclientrqs_sendrq_freeserver_lock(1);
461 start = to->conf->statusserver ? 1 : 0;
462 pthread_mutex_lock(&to->newrq_mutex);
463 if (start && rq->msg->code == RAD_Status_Server) {
464 pthread_mutex_lock(to->requests[0].lock);
465 if (to->requests[0].rq) {
466 pthread_mutex_unlock(to->requests[0].lock);
467 debug(DBG_INFO, "sendrq: status server already in queue, dropping request");
474 /* might simplify if only try nextid, might be ok */
475 for (i = to->nextid; i < MAX_REQUESTS; i++) {
476 if (!to->requests[i].rq) {
477 pthread_mutex_lock(to->requests[i].lock);
478 if (!to->requests[i].rq)
480 pthread_mutex_unlock(to->requests[i].lock);
483 if (i == MAX_REQUESTS) {
484 for (i = start; i < to->nextid; i++) {
485 if (!to->requests[i].rq) {
486 pthread_mutex_lock(to->requests[i].lock);
487 if (!to->requests[i].rq)
489 pthread_mutex_unlock(to->requests[i].lock);
492 if (i == to->nextid) {
493 debug(DBG_INFO, "sendrq: no room in queue, dropping request");
498 rq->newid = (uint8_t)i;
499 rq->msg->id = (uint8_t)i;
500 rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
502 pthread_mutex_unlock(to->requests[i].lock);
503 debug(DBG_ERR, "sendrq: radmsg2buf failed");
507 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->name);
508 to->requests[i].rq = rq;
509 pthread_mutex_unlock(to->requests[i].lock);
510 if (i >= start) /* i is not reserved for statusserver */
515 debug(DBG_DBG, "sendrq: signalling client writer");
516 pthread_cond_signal(&to->newrq_cond);
519 pthread_mutex_unlock(&to->newrq_mutex);
520 removeclientrqs_sendrq_freeserver_lock(0);
525 rmclientrq(rq, rq->msg->id);
527 pthread_mutex_unlock(&to->newrq_mutex);
528 removeclientrqs_sendrq_freeserver_lock(0);
531 void sendreply(struct request *rq) {
533 struct client *to = rq->from;
536 rq->replybuf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
537 radmsg_free(rq->msg);
541 debug(DBG_ERR, "sendreply: radmsg2buf failed");
545 pthread_mutex_lock(&to->replyq->mutex);
546 first = list_first(to->replyq->entries) == NULL;
548 if (!list_push(to->replyq->entries, rq)) {
549 pthread_mutex_unlock(&to->replyq->mutex);
551 debug(DBG_ERR, "sendreply: malloc failed");
556 debug(DBG_DBG, "signalling server writer");
557 pthread_cond_signal(&to->replyq->cond);
559 pthread_mutex_unlock(&to->replyq->mutex);
562 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
563 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
564 static unsigned char first = 1;
565 static EVP_MD_CTX mdctx;
566 unsigned char hash[EVP_MAX_MD_SIZE], *input;
568 uint8_t i, offset = 0, out[128];
570 pthread_mutex_lock(&lock);
572 EVP_MD_CTX_init(&mdctx);
578 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
579 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
580 !EVP_DigestUpdate(&mdctx, input, 16) ||
581 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
583 pthread_mutex_unlock(&lock);
586 for (i = 0; i < 16; i++)
587 out[offset + i] = hash[i] ^ in[offset + i];
588 input = out + offset - 16;
593 memcpy(in, out, len);
594 pthread_mutex_unlock(&lock);
598 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
599 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
600 static unsigned char first = 1;
601 static EVP_MD_CTX mdctx;
602 unsigned char hash[EVP_MAX_MD_SIZE], *input;
604 uint8_t i, offset = 0, out[128];
606 pthread_mutex_lock(&lock);
608 EVP_MD_CTX_init(&mdctx);
614 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
615 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
616 !EVP_DigestUpdate(&mdctx, input, 16) ||
617 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
619 pthread_mutex_unlock(&lock);
622 for (i = 0; i < 16; i++)
623 out[offset + i] = hash[i] ^ in[offset + i];
629 memcpy(in, out, len);
630 pthread_mutex_unlock(&lock);
634 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
635 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
636 static unsigned char first = 1;
637 static EVP_MD_CTX mdctx;
638 unsigned char hash[EVP_MAX_MD_SIZE];
642 pthread_mutex_lock(&lock);
644 EVP_MD_CTX_init(&mdctx);
649 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
650 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
651 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
654 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
655 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
656 !EVP_DigestUpdate(&mdctx, auth, 16) ||
657 !EVP_DigestUpdate(&mdctx, salt, 2) ||
658 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
659 pthread_mutex_unlock(&lock);
664 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
667 for (i = 0; i < 16; i++)
670 for (offset = 16; offset < len; offset += 16) {
672 printf("text + offset - 16 c(%d): ", offset / 16);
673 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
675 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
676 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
677 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
678 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
680 pthread_mutex_unlock(&lock);
684 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
687 for (i = 0; i < 16; i++)
688 text[offset + i] ^= hash[i];
692 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
695 pthread_mutex_unlock(&lock);
699 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
700 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
701 static unsigned char first = 1;
702 static EVP_MD_CTX mdctx;
703 unsigned char hash[EVP_MAX_MD_SIZE];
708 pthread_mutex_lock(&lock);
710 EVP_MD_CTX_init(&mdctx);
715 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
716 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
717 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
720 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
721 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
722 !EVP_DigestUpdate(&mdctx, auth, 16) ||
723 !EVP_DigestUpdate(&mdctx, salt, 2) ||
724 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
725 pthread_mutex_unlock(&lock);
730 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
733 for (i = 0; i < 16; i++)
734 plain[i] = text[i] ^ hash[i];
736 for (offset = 16; offset < len; offset += 16) {
738 printf("text + offset - 16 c(%d): ", offset / 16);
739 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
741 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
742 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
743 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
744 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
746 pthread_mutex_unlock(&lock);
750 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
753 for (i = 0; i < 16; i++)
754 plain[offset + i] = text[offset + i] ^ hash[i];
757 memcpy(text, plain, len);
759 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
762 pthread_mutex_unlock(&lock);
766 struct realm *newrealmref(struct realm *r) {
772 /* returns with lock on realm */
773 struct realm *id2realm(struct list *realmlist, char *id) {
774 struct list_node *entry;
775 struct realm *realm, *subrealm;
777 /* need to do locking for subrealms and check subrealm timers */
778 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
779 realm = (struct realm *)entry->data;
780 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
781 pthread_mutex_lock(&realm->mutex);
782 if (realm->subrealms) {
783 subrealm = id2realm(realm->subrealms, id);
785 pthread_mutex_unlock(&realm->mutex);
789 return newrealmref(realm);
795 int hasdynamicserver(struct list *srvconfs) {
796 struct list_node *entry;
798 for (entry = list_first(srvconfs); entry; entry = list_next(entry))
799 if (((struct clsrvconf *)entry->data)->dynamiclookupcommand)
804 /* helper function, only used by removeserversubrealms() */
805 void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
806 struct list_node *entry, *entry2;
809 for (entry = list_first(realmlist); entry;) {
810 realm = newrealmref((struct realm *)entry->data);
811 pthread_mutex_lock(&realm->mutex);
812 entry = list_next(entry);
814 if (realm->srvconfs) {
815 for (entry2 = list_first(realm->srvconfs); entry2; entry2 = list_next(entry2))
816 if (entry2->data == srv)
818 list_removedata(realm->srvconfs, srv);
820 if (realm->accsrvconfs) {
821 for (entry2 = list_first(realm->accsrvconfs); entry2; entry2 = list_next(entry2))
822 if (entry2->data == srv)
824 list_removedata(realm->accsrvconfs, srv);
827 /* remove subrealm if no dynamic servers left */
828 if (!hasdynamicserver(realm->srvconfs) && !hasdynamicserver(realm->accsrvconfs)) {
829 while (list_shift(realm->srvconfs))
831 list_destroy(realm->srvconfs);
832 realm->srvconfs = NULL;
833 while (list_shift(realm->accsrvconfs))
835 list_destroy(realm->accsrvconfs);
836 realm->accsrvconfs = NULL;
837 list_removedata(realmlist, realm);
839 pthread_mutex_unlock(&realm->mutex);
844 void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
845 struct list_node *entry;
848 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
849 realm = (struct realm *)entry->data;
850 pthread_mutex_lock(&realm->mutex);
851 if (realm->subrealms) {
852 _internal_removeserversubrealms(realm->subrealms, srv);
853 if (!list_first(realm->subrealms)) {
854 list_destroy(realm->subrealms);
855 realm->subrealms = NULL;
858 pthread_mutex_unlock(&realm->mutex);
862 int attrvalidate(unsigned char *attrs, int length) {
864 if (ATTRLEN(attrs) < 2) {
865 debug(DBG_INFO, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
868 length -= ATTRLEN(attrs);
870 debug(DBG_INFO, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
873 attrs += ATTRLEN(attrs);
876 debug(DBG_INFO, "attrvalidate: malformed packet? remaining byte after last attribute");
880 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
881 if (len < 16 || len > 128 || len % 16) {
882 debug(DBG_WARN, "pwdrecrypt: invalid password length");
886 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
887 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
891 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
893 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
894 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
900 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
903 if (!msmppdecrypt(msmpp + 2, len - 2, (uint8_t *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
904 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
907 if (!msmppencrypt(msmpp + 2, len - 2, (uint8_t *)newsecret, strlen(newsecret), newauth, msmpp)) {
908 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
914 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
915 char *oldsecret, char *newsecret) {
918 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
919 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
920 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->rqauth))
926 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint32_t subattr) {
930 for (; attrs[0]; attrs += 2)
931 if (attrs[0] == vendor && attrs[1] == subattr)
936 /* returns 1 if entire element is to be removed, else 0 */
937 int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
938 uint8_t alen, sublen;
942 if (!removevendorattrs)
945 memcpy(&vendor, attr->v, 4);
946 vendor = ntohl(vendor);
947 while (*removevendorattrs && *removevendorattrs != vendor)
948 removevendorattrs += 2;
949 if (!*removevendorattrs)
952 if (findvendorsubattr(removevendorattrs, vendor, 256))
953 return 1; /* remove entire vendor attribute */
955 sublen = attr->l - 4;
956 subattrs = attr->v + 4;
958 if (!attrvalidate(subattrs, sublen)) {
959 debug(DBG_INFO, "dovendorrewrite: vendor attribute validation failed, no rewrite");
964 alen = ATTRLEN(subattrs);
966 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
967 memmove(subattrs, subattrs + alen, sublen);
975 void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
976 struct list_node *n, *p;
980 n = list_first(msg->attrs);
982 attr = (struct tlv *)n->data;
983 if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
984 (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
985 list_removedata(msg->attrs, attr);
987 n = p ? list_next(p) : list_first(msg->attrs);
995 int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
999 for (n = list_first(addattrs); n; n = list_next(n)) {
1000 a = copytlv((struct tlv *)n->data);
1003 if (!radmsg_add(msg, a)) {
1011 int resizeattr(struct tlv *attr, uint8_t newlen) {
1014 if (newlen != attr->l) {
1015 newv = realloc(attr->v, newlen);
1024 int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
1025 size_t nmatch = 10, reslen = 0, start = 0;
1026 regmatch_t pmatch[10], *pfield;
1030 in = stringcopy((char *)attr->v, attr->l);
1034 if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
1039 out = modattr->replacement;
1041 for (i = start; out[i]; i++) {
1042 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1043 pfield = &pmatch[out[i + 1] - '0'];
1044 if (pfield->rm_so >= 0) {
1045 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1051 reslen += i - start;
1053 debug(DBG_INFO, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
1058 if (!resizeattr(attr, reslen)) {
1065 for (i = start; out[i]; i++) {
1066 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1067 pfield = &pmatch[out[i + 1] - '0'];
1068 if (pfield->rm_so >= 0) {
1069 memcpy(attr->v + reslen, out + start, i - start);
1070 reslen += i - start;
1071 memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1072 reslen += pfield->rm_eo - pfield->rm_so;
1079 memcpy(attr->v + reslen, out + start, i - start);
1083 int dorewritemod(struct radmsg *msg, struct list *modattrs) {
1084 struct list_node *n, *m;
1086 for (n = list_first(msg->attrs); n; n = list_next(n))
1087 for (m = list_first(modattrs); m; m = list_next(m))
1088 if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
1089 !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
1094 int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
1095 int rv = 1; /* Success. */
1098 if (rewrite->removeattrs || rewrite->removevendorattrs)
1099 dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
1100 if (rewrite->modattrs)
1101 if (!dorewritemod(msg, rewrite->modattrs))
1103 if (rewrite->addattrs)
1104 if (!dorewriteadd(msg, rewrite->addattrs))
1110 int rewriteusername(struct request *rq, struct tlv *attr) {
1111 char *orig = (char *)tlv2str(attr);
1112 if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
1116 if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
1117 rq->origusername = (char *)orig;
1124 makevendortlv(uint32_t vendor, const struct tlv *attr)
1126 struct tlv *newtlv = NULL;
1132 vendor = htonl(vendor & 0x00ffffff); /* MSB=0 according to RFC 2865. */
1133 memcpy(v, &vendor, 4);
1134 tlv2buf(v + 4, attr);
1136 newtlv = maketlv(RAD_Attr_Vendor_Specific, l, v);
1143 int addvendorattr(struct radmsg *msg, uint32_t vendor, struct tlv *attr) {
1146 vattr = makevendortlv(vendor, attr);
1149 if (!radmsg_add(msg, vattr)) {
1156 void addttlattr(struct radmsg *msg, uint32_t *attrtype, uint8_t addttl) {
1163 if (attrtype[1] == 256) { /* not vendor */
1164 attr = maketlv(attrtype[0], 4, ttl);
1165 if (attr && !radmsg_add(msg, attr))
1168 attr = maketlv(attrtype[1], 4, ttl);
1170 addvendorattr(msg, attrtype[0], attr);
1176 int decttl(uint8_t l, uint8_t *v) {
1183 while (i >= 0 && !v[i])
1187 for (i--; i >= 0 && !v[i]; i--);
1196 /* returns -1 if no ttl, 0 if exceeded, 1 if ok */
1197 int checkttl(struct radmsg *msg, uint32_t *attrtype) {
1198 uint8_t alen, *subattrs;
1200 struct list_node *node;
1204 if (attrtype[1] == 256) { /* not vendor */
1205 attr = radmsg_gettype(msg, attrtype[0]);
1207 return decttl(attr->l, attr->v);
1209 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1210 attr = (struct tlv *)node->data;
1211 if (attr->t != RAD_Attr_Vendor_Specific || attr->l <= 4)
1213 memcpy(&vendor, attr->v, 4);
1214 if (ntohl(vendor) != attrtype[0])
1216 sublen = attr->l - 4;
1217 subattrs = attr->v + 4;
1218 if (!attrvalidate(subattrs, sublen))
1220 while (sublen > 1) {
1221 if (ATTRTYPE(subattrs) == attrtype[1])
1222 return decttl(ATTRVALLEN(subattrs), ATTRVAL(subattrs));
1223 alen = ATTRLEN(subattrs);
1231 const char *radmsgtype2string(uint8_t code) {
1232 static const char *rad_msg_names[] = {
1233 "", "Access-Request", "Access-Accept", "Access-Reject",
1234 "Accounting-Request", "Accounting-Response", "", "",
1235 "", "", "", "Access-Challenge",
1236 "Status-Server", "Status-Client"
1238 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1241 void char2hex(char *h, unsigned char c) {
1242 static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
1243 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
1244 h[0] = hexdigits[c / 16];
1245 h[1] = hexdigits[c % 16];
1249 uint8_t *radattr2ascii(struct tlv *attr) {
1257 for (i = 0; i < attr->l; i++)
1258 if (attr->v[i] < 32 || attr->v[i] > 126)
1261 return (uint8_t *)stringcopy((char *)attr->v, attr->l);
1268 for (i = 0; i < attr->l; i++)
1269 if (attr->v[i] < 32 || attr->v[i] > 126) {
1271 char2hex((char *)d, attr->v[i]);
1279 void acclog(struct radmsg *msg, struct client *from) {
1283 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1285 debug(DBG_INFO, "acclog: accounting-request from client %s (%s) without username attribute", from->conf->name, addr2string(from->addr));
1288 username = radattr2ascii(attr);
1290 debug(DBG_INFO, "acclog: accounting-request from client %s (%s) with username: %s", from->conf->name, addr2string(from->addr), username);
1296 void respond(struct request *rq, uint8_t code, char *message) {
1300 msg = radmsg_init(code, rq->msg->id, rq->msg->auth);
1302 debug(DBG_ERR, "respond: malloc failed");
1305 if (message && *message) {
1306 attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
1307 if (!attr || !radmsg_add(msg, attr)) {
1310 debug(DBG_ERR, "respond: malloc failed");
1315 radmsg_free(rq->msg);
1317 debug(DBG_DBG, "respond: sending %s to %s (%s)", radmsgtype2string(msg->code), rq->from->conf->name, addr2string(rq->from->addr));
1318 sendreply(newrqref(rq));
1321 struct clsrvconf *choosesrvconf(struct list *srvconfs) {
1322 struct list_node *entry;
1323 struct clsrvconf *server, *best = NULL, *first = NULL;
1325 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1326 server = (struct clsrvconf *)entry->data;
1327 if (!server->servers)
1331 if (!server->servers->connectionok && !server->servers->dynstartup)
1333 if (!server->servers->lostrqs)
1339 if (server->servers->lostrqs < best->servers->lostrqs)
1342 return best ? best : first;
1345 /* returns with lock on realm, protects from server changes while in use by radsrv/sendrq */
1346 struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
1347 struct clsrvconf *srvconf;
1348 struct realm *subrealm;
1349 struct server *server = NULL;
1350 char *id = (char *)tlv2str(username);
1354 /* returns with lock on realm */
1355 *realm = id2realm(realms, id);
1358 debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
1359 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1360 if (srvconf && !(*realm)->parent && !srvconf->servers && srvconf->dynamiclookupcommand) {
1361 subrealm = adddynamicrealmserver(*realm, id);
1363 pthread_mutex_lock(&subrealm->mutex);
1364 pthread_mutex_unlock(&(*realm)->mutex);
1367 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1371 server = srvconf->servers;
1379 struct request *newrequest() {
1382 rq = malloc(sizeof(struct request));
1384 debug(DBG_ERR, "newrequest: malloc failed");
1387 memset(rq, 0, sizeof(struct request));
1389 gettimeofday(&rq->created, NULL);
1393 int addclientrq(struct request *rq) {
1397 r = rq->from->rqs[rq->rqid];
1399 if (rq->udpport == r->udpport && !memcmp(rq->rqauth, r->rqauth, 16)) {
1400 gettimeofday(&now, NULL);
1401 if (now.tv_sec - r->created.tv_sec < r->from->conf->dupinterval) {
1403 debug(DBG_INFO, "addclientrq: already sent reply to request with id %d from %s, resending", rq->rqid, addr2string(r->from->addr));
1404 sendreply(newrqref(r));
1406 debug(DBG_INFO, "addclientrq: already got request with id %d from %s, ignoring", rq->rqid, addr2string(r->from->addr));
1412 rq->from->rqs[rq->rqid] = newrqref(rq);
1416 void rmclientrq(struct request *rq, uint8_t id) {
1419 r = rq->from->rqs[id];
1422 rq->from->rqs[id] = NULL;
1426 /* returns 0 if validation/authentication fails, else 1 */
1427 int radsrv(struct request *rq) {
1428 struct radmsg *msg = NULL;
1430 uint8_t *userascii = NULL;
1431 struct realm *realm = NULL;
1432 struct server *to = NULL;
1433 struct client *from = rq->from;
1436 msg = buf2radmsg(rq->buf, (uint8_t *)from->conf->secret, NULL);
1441 debug(DBG_INFO, "radsrv: message validation failed, ignoring packet");
1448 memcpy(rq->rqauth, msg->auth, 16);
1450 debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
1451 if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
1452 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1456 if (!addclientrq(rq))
1459 if (msg->code == RAD_Status_Server) {
1460 respond(rq, RAD_Access_Accept, NULL);
1464 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1466 if (from->conf->rewritein && !dorewrite(msg, from->conf->rewritein))
1469 ttlres = checkttl(msg, options.ttlattrtype);
1471 debug(DBG_INFO, "radsrv: ignoring request from client %s (%s), ttl exceeded", from->conf->name, addr2string(from->addr));
1475 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1477 if (msg->code == RAD_Accounting_Request) {
1479 respond(rq, RAD_Accounting_Response, NULL);
1481 debug(DBG_INFO, "radsrv: ignoring access request, no username attribute");
1485 if (from->conf->rewriteusername && !rewriteusername(rq, attr)) {
1486 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1490 userascii = radattr2ascii(attr);
1493 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
1495 /* will return with lock on the realm */
1496 to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
1498 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1503 if (realm->message && msg->code == RAD_Access_Request) {
1504 debug(DBG_INFO, "radsrv: sending reject to %s (%s) for %s", from->conf->name, addr2string(from->addr), userascii);
1505 respond(rq, RAD_Access_Reject, realm->message);
1506 } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
1508 respond(rq, RAD_Accounting_Response, NULL);
1513 if ((to->conf->loopprevention == 1
1514 || (to->conf->loopprevention == UCHAR_MAX && options.loopprevention == 1))
1515 && !strcmp(from->conf->name, to->conf->name)) {
1516 debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s (%s) to server %s, discarding",
1517 from->conf->name, addr2string(from->addr), to->conf->name);
1521 if (msg->code == RAD_Accounting_Request)
1522 memset(msg->auth, 0, 16);
1523 else if (!RAND_bytes(msg->auth, 16)) {
1524 debug(DBG_WARN, "radsrv: failed to generate random auth");
1529 printfchars(NULL, "auth", "%02x ", auth, 16);
1532 attr = radmsg_gettype(msg, RAD_Attr_User_Password);
1534 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
1535 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
1539 attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
1541 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
1542 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
1546 if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
1549 if (ttlres == -1 && (options.addttl || to->conf->addttl))
1550 addttlattr(msg, options.ttlattrtype, to->conf->addttl ? to->conf->addttl : options.addttl);
1555 pthread_mutex_unlock(&realm->mutex);
1560 rmclientrq(rq, msg->id);
1565 pthread_mutex_unlock(&realm->mutex);
1571 void replyh(struct server *server, unsigned char *buf) {
1572 struct client *from;
1573 struct rqout *rqout;
1575 unsigned char *subattrs;
1576 uint8_t *username, *stationid, *replymsg;
1577 struct radmsg *msg = NULL;
1579 struct list_node *node;
1581 server->connectionok = 1;
1582 server->lostrqs = 0;
1584 rqout = server->requests + buf[1];
1585 pthread_mutex_lock(rqout->lock);
1586 if (!rqout->tries) {
1589 debug(DBG_INFO, "replyh: no outstanding request with this id, ignoring reply");
1593 msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rqout->rq->msg->auth);
1597 debug(DBG_INFO, "replyh: message validation failed, ignoring packet");
1600 if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
1601 && msg->code != RAD_Accounting_Response) {
1602 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
1605 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
1607 gettimeofday(&server->lastrcv, NULL);
1609 if (rqout->rq->msg->code == RAD_Status_Server) {
1610 freerqoutdata(rqout);
1611 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->name);
1615 gettimeofday(&server->lastreply, NULL);
1616 from = rqout->rq->from;
1618 if (server->conf->rewritein && !dorewrite(msg, from->conf->rewritein)) {
1619 debug(DBG_INFO, "replyh: rewritein failed");
1623 ttlres = checkttl(msg, options.ttlattrtype);
1625 debug(DBG_INFO, "replyh: ignoring reply from server %s, ttl exceeded", server->conf->name);
1630 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1631 attr = (struct tlv *)node->data;
1632 if (attr->t != RAD_Attr_Vendor_Specific)
1636 if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
1639 sublen = attr->l - 4;
1640 subattrs = attr->v + 4;
1641 if (!attrvalidate(subattrs, sublen) ||
1642 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1643 rqout->rq, server->conf->secret, from->conf->secret) ||
1644 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1645 rqout->rq, server->conf->secret, from->conf->secret))
1649 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
1653 if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
1654 username = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_User_Name));
1656 stationid = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_Calling_Station_Id));
1657 replymsg = radattr2ascii(radmsg_gettype(msg, RAD_Attr_Reply_Message));
1660 debug(DBG_WARN, "%s for user %s stationid %s from %s (%s) to %s (%s)",
1661 radmsgtype2string(msg->code), username, stationid, server->conf->name, replymsg, from->conf->name, addr2string(from->addr));
1664 debug(DBG_WARN, "%s for user %s stationid %s from %s to %s (%s)",
1665 radmsgtype2string(msg->code), username, stationid, server->conf->name, from->conf->name, addr2string(from->addr));
1669 debug(DBG_WARN, "%s for user %s from %s (%s) to %s (%s)",
1670 radmsgtype2string(msg->code), username, server->conf->name, replymsg, from->conf->name, addr2string(from->addr));
1673 debug(DBG_WARN, "%s for user %s from %s to %s (%s)",
1674 radmsgtype2string(msg->code), username, server->conf->name, from->conf->name, addr2string(from->addr));
1680 msg->id = (char)rqout->rq->rqid;
1681 memcpy(msg->auth, rqout->rq->rqauth, 16);
1684 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
1687 if (rqout->rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
1688 if (!resizeattr(attr, strlen(rqout->rq->origusername))) {
1689 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
1692 memcpy(attr->v, rqout->rq->origusername, strlen(rqout->rq->origusername));
1695 if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
1696 debug(DBG_WARN, "replyh: rewriteout failed");
1700 if (ttlres == -1 && (options.addttl || from->conf->addttl))
1701 addttlattr(msg, options.ttlattrtype, from->conf->addttl ? from->conf->addttl : options.addttl);
1703 debug(msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response ? DBG_WARN : DBG_INFO,
1704 "replyh: passing %s to client %s (%s)", radmsgtype2string(msg->code), from->conf->name, addr2string(from->addr));
1706 radmsg_free(rqout->rq->msg);
1707 rqout->rq->msg = msg;
1708 sendreply(newrqref(rqout->rq));
1709 freerqoutdata(rqout);
1710 pthread_mutex_unlock(rqout->lock);
1715 pthread_mutex_unlock(rqout->lock);
1719 struct request *createstatsrvrq() {
1726 rq->msg = radmsg_init(RAD_Status_Server, 0, NULL);
1729 attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
1732 if (!radmsg_add(rq->msg, attr)) {
1743 /* code for removing state not finished */
1744 void *clientwr(void *arg) {
1745 struct server *server = (struct server *)arg;
1746 struct rqout *rqout = NULL;
1747 pthread_t clientrdth;
1748 int i, dynconffail = 0;
1751 struct timeval now, laststatsrv;
1752 struct timespec timeout;
1753 struct request *statsrvrq;
1754 struct clsrvconf *conf;
1756 conf = server->conf;
1758 if (server->dynamiclookuparg && !dynamicconfig(server)) {
1760 server->dynstartup = 0;
1765 if (!resolvehostports(conf->hostports, conf->pdef->socktype)) {
1766 debug(DBG_WARN, "clientwr: resolve failed");
1767 server->dynstartup = 0;
1772 memset(&timeout, 0, sizeof(struct timespec));
1774 if (conf->statusserver) {
1775 gettimeofday(&server->lastrcv, NULL);
1776 gettimeofday(&laststatsrv, NULL);
1779 if (conf->pdef->connecter) {
1780 if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 5 : 0, "clientwr")) {
1781 if (server->dynamiclookuparg) {
1782 server->dynstartup = 0;
1787 server->connectionok = 1;
1788 if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
1789 debug(DBG_ERR, "clientwr: pthread_create failed");
1793 server->connectionok = 1;
1794 server->dynstartup = 0;
1797 pthread_mutex_lock(&server->newrq_mutex);
1798 if (!server->newrq) {
1799 gettimeofday(&now, NULL);
1800 /* random 0-7 seconds */
1801 RAND_bytes(&rnd, 1);
1803 if (conf->statusserver) {
1804 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
1805 if (now.tv_sec - secs > STATUS_SERVER_PERIOD)
1807 if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
1808 timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
1810 if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
1811 timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
1814 if (timeout.tv_sec > now.tv_sec)
1815 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
1817 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
1820 if (server->newrq) {
1821 debug(DBG_DBG, "clientwr: got new request");
1826 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
1828 pthread_mutex_unlock(&server->newrq_mutex);
1830 for (i = 0; i < MAX_REQUESTS; i++) {
1831 if (server->clientrdgone) {
1832 pthread_join(clientrdth, NULL);
1836 for (; i < MAX_REQUESTS; i++) {
1837 rqout = server->requests + i;
1839 pthread_mutex_lock(rqout->lock);
1842 pthread_mutex_unlock(rqout->lock);
1846 if (i == MAX_REQUESTS)
1849 gettimeofday(&now, NULL);
1850 if (now.tv_sec < rqout->expiry.tv_sec) {
1851 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
1852 timeout.tv_sec = rqout->expiry.tv_sec;
1853 pthread_mutex_unlock(rqout->lock);
1857 if (rqout->tries == (*rqout->rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
1858 debug(DBG_DBG, "clientwr: removing expired packet from queue");
1859 if (conf->statusserver) {
1860 if (*rqout->rq->buf == RAD_Status_Server) {
1861 debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->name);
1862 if (server->lostrqs < 255)
1866 debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->name);
1867 if (server->lostrqs < 255)
1870 freerqoutdata(rqout);
1871 pthread_mutex_unlock(rqout->lock);
1875 rqout->expiry.tv_sec = now.tv_sec + conf->retryinterval;
1876 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
1877 timeout.tv_sec = rqout->expiry.tv_sec;
1879 conf->pdef->clientradput(server, rqout->rq->buf);
1880 pthread_mutex_unlock(rqout->lock);
1882 if (conf->statusserver && server->connectionok) {
1883 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
1884 gettimeofday(&now, NULL);
1885 if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
1887 statsrvrq = createstatsrvrq();
1889 statsrvrq->to = server;
1890 debug(DBG_DBG, "clientwr: sending status server to %s", conf->name);
1897 conf->servers = NULL;
1898 if (server->dynamiclookuparg) {
1899 removeserversubrealms(realms, conf);
1903 freeclsrvconf(conf);
1905 freeserver(server, 1);
1906 ERR_remove_state(0);
1910 void createlistener(uint8_t type, char *arg) {
1912 struct addrinfo *res;
1913 int s = -1, on = 1, *sp = NULL;
1914 struct hostportres *hp = newhostport(arg, protodefs[type]->portdefault, 0);
1916 if (!hp || !resolvehostport(hp, protodefs[type]->socktype, 1))
1917 debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
1919 for (res = hp->addrinfo; res; res = res->ai_next) {
1920 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
1922 debug(DBG_WARN, "createlistener: socket failed");
1925 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
1927 disable_DF_bit(s, res);
1930 if (res->ai_family == AF_INET6)
1931 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
1933 if (bind(s, res->ai_addr, res->ai_addrlen)) {
1934 debug(DBG_WARN, "createlistener: bind failed");
1940 sp = malloc(sizeof(int));
1942 debugx(1, DBG_ERR, "malloc failed");
1944 if (pthread_create(&th, NULL, protodefs[type]->listener, (void *)sp))
1945 debugx(1, DBG_ERR, "pthread_create failed");
1949 debugx(1, DBG_ERR, "createlistener: socket/bind failed");
1951 debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type]->name, hp->host ? hp->host : "*", hp->port);
1955 void createlisteners(uint8_t type) {
1959 args = protodefs[type]->getlistenerargs();
1961 for (i = 0; args[i]; i++)
1962 createlistener(type, args[i]);
1964 createlistener(type, NULL);
1972 ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
1973 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
1974 for (i = 0; i < CRYPTO_num_locks(); i++) {
1975 ssl_lock_count[i] = 0;
1976 pthread_mutex_init(&ssl_locks[i], NULL);
1978 CRYPTO_set_id_callback(ssl_thread_id);
1979 CRYPTO_set_locking_callback(ssl_locking_callback);
1981 SSL_load_error_strings();
1984 while (!RAND_status()) {
1987 RAND_seed((unsigned char *)&t, sizeof(time_t));
1988 RAND_seed((unsigned char *)&pid, sizeof(pid));
1992 struct list *addsrvconfs(char *value, char **names) {
1993 struct list *conflist;
1995 struct list_node *entry;
1996 struct clsrvconf *conf = NULL;
1998 if (!names || !*names)
2001 conflist = list_create();
2003 debug(DBG_ERR, "malloc failed");
2007 for (n = 0; names[n]; n++) {
2008 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2009 conf = (struct clsrvconf *)entry->data;
2010 if (!strcasecmp(names[n], conf->name))
2014 debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
2015 list_destroy(conflist);
2018 if (!list_push(conflist, conf)) {
2019 debug(DBG_ERR, "malloc failed");
2020 list_destroy(conflist);
2023 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2028 void freerealm(struct realm *realm) {
2031 debug(DBG_DBG, "freerealm: called with refcount %d", realm->refcount);
2032 if (--realm->refcount)
2036 free(realm->message);
2037 regfree(&realm->regex);
2038 pthread_mutex_destroy(&realm->mutex);
2039 /* if refcount == 0, all subrealms gone */
2040 list_destroy(realm->subrealms);
2041 /* if refcount == 0, all srvconfs gone */
2042 list_destroy(realm->srvconfs);
2043 /* if refcount == 0, all accsrvconfs gone */
2044 list_destroy(realm->accsrvconfs);
2045 freerealm(realm->parent);
2049 struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
2051 struct realm *realm;
2052 char *s, *regex = NULL;
2054 if (*value == '/') {
2055 /* regexp, remove optional trailing / if present */
2056 if (value[strlen(value) - 1] == '/')
2057 value[strlen(value) - 1] = '\0';
2059 /* not a regexp, let us make it one */
2060 if (*value == '*' && !value[1])
2061 regex = stringcopy(".*", 0);
2063 for (n = 0, s = value; *s;)
2066 regex = malloc(strlen(value) + n + 3);
2069 for (n = 1, s = value; *s; s++) {
2079 debug(DBG_ERR, "malloc failed");
2083 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2086 realm = malloc(sizeof(struct realm));
2088 debug(DBG_ERR, "malloc failed");
2091 memset(realm, 0, sizeof(struct realm));
2093 if (pthread_mutex_init(&realm->mutex, NULL)) {
2094 debug(DBG_ERR, "mutex init failed");
2100 realm->name = stringcopy(value, 0);
2102 debug(DBG_ERR, "malloc failed");
2105 if (message && strlen(message) > 253) {
2106 debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
2109 realm->message = message;
2110 realm->accresp = accresp;
2112 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2113 debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2117 if (servers && *servers) {
2118 realm->srvconfs = addsrvconfs(value, servers);
2119 if (!realm->srvconfs)
2123 if (accservers && *accservers) {
2124 realm->accsrvconfs = addsrvconfs(value, accservers);
2125 if (!realm->accsrvconfs)
2129 if (!list_push(realmlist, realm)) {
2130 debug(DBG_ERR, "malloc failed");
2131 pthread_mutex_destroy(&realm->mutex);
2135 debug(DBG_DBG, "addrealm: added realm %s", value);
2139 while (list_shift(realm->srvconfs));
2140 while (list_shift(realm->accsrvconfs));
2147 for (n = 0; servers[n]; n++)
2149 freegconfmstr(servers);
2153 for (n = 0; accservers[n]; n++)
2155 freegconfmstr(accservers);
2157 return newrealmref(realm);
2160 struct list *createsubrealmservers(struct realm *realm, struct list *srvconfs) {
2161 struct list_node *entry;
2162 struct clsrvconf *conf, *srvconf;
2163 struct list *subrealmservers = NULL;
2166 if (list_first(srvconfs)) {
2167 subrealmservers = list_create();
2168 if (!subrealmservers)
2172 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2173 conf = (struct clsrvconf *)entry->data;
2174 if (!conf->servers && conf->dynamiclookupcommand) {
2175 srvconf = malloc(sizeof(struct clsrvconf));
2177 debug(DBG_ERR, "malloc failed");
2181 if (addserver(srvconf)) {
2182 srvconf->servers->dynamiclookuparg = stringcopy(realm->name, 0);
2183 srvconf->servers->dynstartup = 1;
2184 if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
2185 debug(DBG_ERR, "pthread_create failed");
2186 freeserver(srvconf->servers, 1);
2187 srvconf->servers = NULL;
2189 pthread_detach(clientth);
2193 if (conf->servers) {
2194 if (list_push(subrealmservers, conf))
2197 debug(DBG_ERR, "malloc failed");
2200 return subrealmservers;
2203 struct realm *adddynamicrealmserver(struct realm *realm, char *id) {
2204 struct realm *newrealm = NULL;
2205 char *realmname, *s;
2207 /* create dynamic for the realm (string after last @, exit if nothing after @ */
2208 realmname = strrchr(id, '@');
2214 for (s = realmname; *s; s++)
2215 if (*s != '.' && *s != '-' && !isalnum((int)*s))
2218 if (!realm->subrealms)
2219 realm->subrealms = list_create();
2220 if (!realm->subrealms)
2223 newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, stringcopy(realm->message, 0), realm->accresp);
2225 list_destroy(realm->subrealms);
2226 realm->subrealms = NULL;
2230 newrealm->parent = newrealmref(realm);
2231 /* add server and accserver to newrealm */
2232 newrealm->srvconfs = createsubrealmservers(newrealm, realm->srvconfs);
2233 newrealm->accsrvconfs = createsubrealmservers(newrealm, realm->accsrvconfs);
2237 int dynamicconfig(struct server *server) {
2238 int ok, fd[2], status;
2240 struct clsrvconf *conf = server->conf;
2241 struct gconffile *cf = NULL;
2243 /* for now we only learn hostname/address */
2244 debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
2247 debug(DBG_ERR, "dynamicconfig: pipe error");
2252 debug(DBG_ERR, "dynamicconfig: fork error");
2256 } else if (pid == 0) {
2259 if (fd[1] != STDOUT_FILENO) {
2260 if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
2261 debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
2264 if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
2265 debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
2269 pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
2270 ok = getgenericconfig(&cf, NULL,
2271 "Server", CONF_CBK, confserver_cb, (void *)conf,
2276 if (waitpid(pid, &status, 0) < 0) {
2277 debug(DBG_ERR, "dynamicconfig: wait error");
2282 debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
2290 debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
2294 /* should accept both names and numeric values, only numeric right now */
2295 uint8_t attrname2val(char *attrname) {
2298 val = atoi(attrname);
2299 return val > 0 && val < 256 ? val : 0;
2302 /* ATTRNAME is on the form vendor[:type].
2303 If only vendor is found, TYPE is set to 256 and 1 is returned.
2304 If type is >= 256, 1 is returned.
2305 Otherwise, 0 is returned.
2307 /* should accept both names and numeric values, only numeric right now */
2308 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2311 *vendor = atoi(attrname);
2312 s = strchr(attrname, ':');
2313 if (!s) { /* Only vendor was found. */
2317 *type = atoi(s + 1);
2321 /* should accept both names and numeric values, only numeric right now */
2322 struct tlv *extractattr(char *nameval) {
2324 int vendor = 0; /* Vendor 0 is reserved, see RFC 1700. */
2328 s = strchr(nameval, ':');
2329 name = atoi(nameval);
2332 len = strlen(s + 1);
2336 s2 = strchr(s + 1, ':');
2337 if (s2) { /* Two ':' means we have vendor:name:val. */
2339 name = atoi(s2 + 1);
2343 if (name < 1 || name > 255)
2345 a = malloc(sizeof(struct tlv));
2349 a->v = (uint8_t *)stringcopy(s + 1, 0);
2358 a = makevendortlv(vendor, a);
2363 /* should accept both names and numeric values, only numeric right now */
2364 struct modattr *extractmodattr(char *nameval) {
2369 if (!strncasecmp(nameval, "User-Name:/", 11)) {
2373 s = strchr(nameval, ':');
2374 name = atoi(nameval);
2375 if (!s || name < 1 || name > 255 || s[1] != '/')
2379 /* regexp, remove optional trailing / if present */
2380 if (s[strlen(s) - 1] == '/')
2381 s[strlen(s) - 1] = '\0';
2389 m = malloc(sizeof(struct modattr));
2391 debug(DBG_ERR, "malloc failed");
2396 m->replacement = stringcopy(t, 0);
2397 if (!m->replacement) {
2399 debug(DBG_ERR, "malloc failed");
2403 m->regex = malloc(sizeof(regex_t));
2405 free(m->replacement);
2407 debug(DBG_ERR, "malloc failed");
2411 if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
2413 free(m->replacement);
2415 debug(DBG_ERR, "failed to compile regular expression %s", s);
2422 struct rewrite *getrewrite(char *alt1, char *alt2) {
2425 if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
2427 if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
2432 void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **addvattrs, char **modattrs)
2434 struct rewrite *rewrite = NULL;
2436 uint8_t *rma = NULL;
2437 uint32_t *p, *rmva = NULL;
2438 struct list *adda = NULL, *moda = NULL;
2443 for (n = 0; rmattrs[n]; n++);
2444 rma = calloc(n + 1, sizeof(uint8_t));
2446 debugx(1, DBG_ERR, "malloc failed");
2448 for (i = 0; i < n; i++)
2449 if (!(rma[i] = attrname2val(rmattrs[i])))
2450 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", rmattrs[i]);
2451 freegconfmstr(rmattrs);
2456 for (n = 0; rmvattrs[n]; n++);
2457 rmva = calloc(2 * n + 1, sizeof(uint32_t));
2459 debugx(1, DBG_ERR, "malloc failed");
2461 for (p = rmva, i = 0; i < n; i++, p += 2)
2462 if (!vattrname2val(rmvattrs[i], p, p + 1))
2463 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", rmvattrs[i]);
2464 freegconfmstr(rmvattrs);
2469 adda = list_create();
2471 debugx(1, DBG_ERR, "malloc failed");
2472 for (i = 0; addattrs[i]; i++) {
2473 a = extractattr(addattrs[i]);
2475 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addattrs[i]);
2476 if (!list_push(adda, a))
2477 debugx(1, DBG_ERR, "malloc failed");
2479 freegconfmstr(addattrs);
2484 adda = list_create();
2486 debugx(1, DBG_ERR, "malloc failed");
2487 for (i = 0; addvattrs[i]; i++) {
2488 a = extractattr(addvattrs[i]);
2490 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addvattrs[i]);
2491 if (!list_push(adda, a))
2492 debugx(1, DBG_ERR, "malloc failed");
2494 freegconfmstr(addvattrs);
2498 moda = list_create();
2500 debugx(1, DBG_ERR, "malloc failed");
2501 for (i = 0; modattrs[i]; i++) {
2502 m = extractmodattr(modattrs[i]);
2504 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", modattrs[i]);
2505 if (!list_push(moda, m))
2506 debugx(1, DBG_ERR, "malloc failed");
2508 freegconfmstr(modattrs);
2511 if (rma || rmva || adda || moda) {
2512 rewrite = malloc(sizeof(struct rewrite));
2514 debugx(1, DBG_ERR, "malloc failed");
2515 rewrite->removeattrs = rma;
2516 rewrite->removevendorattrs = rmva;
2517 rewrite->addattrs = adda;
2518 rewrite->modattrs = moda;
2521 if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
2522 debugx(1, DBG_ERR, "malloc failed");
2523 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2526 int setttlattr(struct options *opts, char *defaultattr) {
2527 char *ttlattr = opts->ttlattr ? opts->ttlattr : defaultattr;
2529 if (vattrname2val(ttlattr, opts->ttlattrtype, opts->ttlattrtype + 1) &&
2530 (opts->ttlattrtype[1] != 256 || opts->ttlattrtype[0] < 256))
2532 debug(DBG_ERR, "setttlattr: invalid TTLAttribute value %s", ttlattr);
2536 void freeclsrvconf(struct clsrvconf *conf) {
2539 freegconfmstr(conf->hostsrc);
2540 free(conf->portsrc);
2543 free(conf->matchcertattr);
2544 if (conf->certcnregex)
2545 regfree(conf->certcnregex);
2546 if (conf->certuriregex)
2547 regfree(conf->certuriregex);
2548 free(conf->confrewritein);
2549 free(conf->confrewriteout);
2550 if (conf->rewriteusername) {
2551 if (conf->rewriteusername->regex)
2552 regfree(conf->rewriteusername->regex);
2553 free(conf->rewriteusername->replacement);
2554 free(conf->rewriteusername);
2556 free(conf->dynamiclookupcommand);
2557 free(conf->rewritein);
2558 free(conf->rewriteout);
2559 if (conf->hostports)
2560 freehostports(conf->hostports);
2562 pthread_mutex_destroy(conf->lock);
2565 /* not touching ssl_ctx, clients and servers */
2569 int mergeconfstring(char **dst, char **src) {
2578 t = stringcopy(*dst, 0);
2580 debug(DBG_ERR, "malloc failed");
2588 char **mstringcopy(char **in) {
2595 for (n = 0; in[n]; n++);
2596 out = malloc((n + 1) * sizeof(char *));
2599 for (n = 0; in[n]; n++) {
2600 out[n] = stringcopy(in[n], 0);
2610 int mergeconfmstring(char ***dst, char ***src) {
2619 t = mstringcopy(*dst);
2621 debug(DBG_ERR, "malloc failed");
2629 /* assumes dst is a shallow copy */
2630 int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
2631 if (!mergeconfstring(&dst->name, &src->name) ||
2632 !mergeconfmstring(&dst->hostsrc, &src->hostsrc) ||
2633 !mergeconfstring(&dst->portsrc, &src->portsrc) ||
2634 !mergeconfstring(&dst->secret, &src->secret) ||
2635 !mergeconfstring(&dst->tls, &src->tls) ||
2636 !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
2637 !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
2638 !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
2639 !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
2642 dst->pdef = src->pdef;
2643 dst->statusserver = src->statusserver;
2644 dst->certnamecheck = src->certnamecheck;
2645 if (src->retryinterval != 255)
2646 dst->retryinterval = src->retryinterval;
2647 if (src->retrycount != 255)
2648 dst->retrycount = src->retrycount;
2652 int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2653 struct clsrvconf *conf;
2654 char *conftype = NULL, *rewriteinalias = NULL;
2655 long int dupinterval = LONG_MIN, addttl = LONG_MIN;
2657 debug(DBG_DBG, "confclient_cb called for %s", block);
2659 conf = malloc(sizeof(struct clsrvconf));
2661 debugx(1, DBG_ERR, "malloc failed");
2662 memset(conf, 0, sizeof(struct clsrvconf));
2663 conf->certnamecheck = 1;
2665 if (!getgenericconfig(cf, block,
2666 "type", CONF_STR, &conftype,
2667 "host", CONF_MSTR, &conf->hostsrc,
2668 "secret", CONF_STR, &conf->secret,
2669 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2670 "tls", CONF_STR, &conf->tls,
2671 "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
2672 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
2674 "DuplicateInterval", CONF_LINT, &dupinterval,
2675 "addTTL", CONF_LINT, &addttl,
2676 "rewrite", CONF_STR, &rewriteinalias,
2677 "rewriteIn", CONF_STR, &conf->confrewritein,
2678 "rewriteOut", CONF_STR, &conf->confrewriteout,
2679 "rewriteattribute", CONF_STR, &conf->confrewriteusername,
2682 debugx(1, DBG_ERR, "configuration error");
2684 conf->name = stringcopy(val, 0);
2685 if (conf->name && !conf->hostsrc) {
2686 conf->hostsrc = malloc(2 * sizeof(char *));
2687 if (conf->hostsrc) {
2688 conf->hostsrc[0] = stringcopy(val, 0);
2689 conf->hostsrc[1] = NULL;
2692 if (!conf->name || !conf->hostsrc || !conf->hostsrc[0])
2693 debugx(1, DBG_ERR, "malloc failed");
2696 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
2697 conf->type = protoname2int(conftype);
2698 if (conf->type == 255)
2699 debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
2701 conf->pdef = protodefs[conf->type];
2703 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2704 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
2705 conf->tlsconf = conf->tls ? tlsgettls(conf->tls, NULL) : tlsgettls("defaultclient", "default");
2707 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
2708 if (conf->matchcertattr && !addmatchcertattr(conf))
2709 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
2713 if (dupinterval != LONG_MIN) {
2714 if (dupinterval < 0 || dupinterval > 255)
2715 debugx(1, DBG_ERR, "error in block %s, value of option DuplicateInterval is %d, must be 0-255", block, dupinterval);
2716 conf->dupinterval = (uint8_t)dupinterval;
2718 conf->dupinterval = conf->pdef->duplicateintervaldefault;
2720 if (addttl != LONG_MIN) {
2721 if (addttl < 1 || addttl > 255)
2722 debugx(1, DBG_ERR, "error in block %s, value of option addTTL is %d, must be 1-255", block, addttl);
2723 conf->addttl = (uint8_t)addttl;
2726 if (!conf->confrewritein)
2727 conf->confrewritein = rewriteinalias;
2729 free(rewriteinalias);
2730 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
2731 if (conf->confrewriteout)
2732 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
2734 if (conf->confrewriteusername) {
2735 conf->rewriteusername = extractmodattr(conf->confrewriteusername);
2736 if (!conf->rewriteusername)
2737 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
2740 if (!addhostport(&conf->hostports, conf->hostsrc, conf->pdef->portdefault, 1) ||
2741 !resolvehostports(conf->hostports, conf->pdef->socktype))
2742 debugx(1, DBG_ERR, "resolve failed, exiting");
2744 if (!conf->secret) {
2745 if (!conf->pdef->secretdefault)
2746 debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
2747 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
2749 debugx(1, DBG_ERR, "malloc failed");
2752 conf->lock = malloc(sizeof(pthread_mutex_t));
2754 debugx(1, DBG_ERR, "malloc failed");
2756 pthread_mutex_init(conf->lock, NULL);
2757 if (!list_push(clconfs, conf))
2758 debugx(1, DBG_ERR, "malloc failed");
2762 int compileserverconfig(struct clsrvconf *conf, const char *block) {
2763 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2764 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
2765 conf->tlsconf = conf->tls ? tlsgettls(conf->tls, NULL) : tlsgettls("defaultserver", "default");
2766 if (!conf->tlsconf) {
2767 debug(DBG_ERR, "error in block %s, no tls context defined", block);
2770 if (conf->matchcertattr && !addmatchcertattr(conf)) {
2771 debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
2777 if (!conf->portsrc) {
2778 conf->portsrc = stringcopy(conf->pdef->portdefault, 0);
2779 if (!conf->portsrc) {
2780 debug(DBG_ERR, "malloc failed");
2785 if (conf->retryinterval == 255)
2786 conf->retryinterval = conf->pdef->retryintervaldefault;
2787 if (conf->retrycount == 255)
2788 conf->retrycount = conf->pdef->retrycountdefault;
2790 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
2791 if (conf->confrewriteout)
2792 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
2794 if (!addhostport(&conf->hostports, conf->hostsrc, conf->portsrc, 0)) {
2795 debug(DBG_ERR, "error in block %s, failed to parse %s", block, conf->hostsrc);
2799 if (!conf->dynamiclookupcommand && !resolvehostports(conf->hostports, conf->pdef->socktype)) {
2800 debug(DBG_ERR, "resolve failed, exiting");
2806 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2807 struct clsrvconf *conf, *resconf;
2808 char *conftype = NULL, *rewriteinalias = NULL;
2809 long int retryinterval = LONG_MIN, retrycount = LONG_MIN, addttl = LONG_MIN;
2811 debug(DBG_DBG, "confserver_cb called for %s", block);
2813 conf = malloc(sizeof(struct clsrvconf));
2815 debug(DBG_ERR, "malloc failed");
2818 memset(conf, 0, sizeof(struct clsrvconf));
2819 conf->loopprevention = UCHAR_MAX; /* Uninitialized. */
2820 resconf = (struct clsrvconf *)arg;
2822 conf->statusserver = resconf->statusserver;
2823 conf->certnamecheck = resconf->certnamecheck;
2825 conf->certnamecheck = 1;
2827 if (!getgenericconfig(cf, block,
2828 "type", CONF_STR, &conftype,
2829 "host", CONF_MSTR, &conf->hostsrc,
2830 "port", CONF_STR, &conf->portsrc,
2831 "secret", CONF_STR, &conf->secret,
2832 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2833 "tls", CONF_STR, &conf->tls,
2834 "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
2835 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
2837 "addTTL", CONF_LINT, &addttl,
2838 "rewrite", CONF_STR, &rewriteinalias,
2839 "rewriteIn", CONF_STR, &conf->confrewritein,
2840 "rewriteOut", CONF_STR, &conf->confrewriteout,
2841 "StatusServer", CONF_BLN, &conf->statusserver,
2842 "RetryInterval", CONF_LINT, &retryinterval,
2843 "RetryCount", CONF_LINT, &retrycount,
2844 "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
2845 "LoopPrevention", CONF_BLN, &conf->loopprevention,
2848 debug(DBG_ERR, "configuration error");
2852 conf->name = stringcopy(val, 0);
2853 if (conf->name && !conf->hostsrc) {
2854 conf->hostsrc = malloc(2 * sizeof(char *));
2855 if (conf->hostsrc) {
2856 conf->hostsrc[0] = stringcopy(val, 0);
2857 conf->hostsrc[1] = NULL;
2860 if (!conf->name || !conf->hostsrc || !conf->hostsrc[0]) {
2861 debug(DBG_ERR, "malloc failed");
2866 debug(DBG_ERR, "error in block %s, option type missing", block);
2869 conf->type = protoname2int(conftype);
2870 if (conf->type == 255) {
2871 debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
2877 conf->pdef = protodefs[conf->type];
2879 if (!conf->confrewritein)
2880 conf->confrewritein = rewriteinalias;
2882 free(rewriteinalias);
2883 rewriteinalias = NULL;
2885 if (retryinterval != LONG_MIN) {
2886 if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
2887 debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
2890 conf->retryinterval = (uint8_t)retryinterval;
2892 conf->retryinterval = 255;
2894 if (retrycount != LONG_MIN) {
2895 if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
2896 debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
2899 conf->retrycount = (uint8_t)retrycount;
2901 conf->retrycount = 255;
2903 if (addttl != LONG_MIN) {
2904 if (addttl < 1 || addttl > 255) {
2905 debug(DBG_ERR, "error in block %s, value of option addTTL is %d, must be 1-255", block, addttl);
2908 conf->addttl = (uint8_t)addttl;
2912 if (!mergesrvconf(resconf, conf))
2916 if (conf->dynamiclookupcommand) {
2917 free(conf->dynamiclookupcommand);
2918 conf->dynamiclookupcommand = NULL;
2922 if (resconf || !conf->dynamiclookupcommand) {
2923 if (!compileserverconfig(conf, block))
2927 if (!conf->secret) {
2928 if (!conf->pdef->secretdefault) {
2929 debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
2932 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
2933 if (!conf->secret) {
2934 debug(DBG_ERR, "malloc failed");
2942 if (!list_push(srvconfs, conf)) {
2943 debug(DBG_ERR, "malloc failed");
2950 free(rewriteinalias);
2951 freeclsrvconf(conf);
2955 int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2956 char **servers = NULL, **accservers = NULL, *msg = NULL;
2957 uint8_t accresp = 0;
2959 debug(DBG_DBG, "confrealm_cb called for %s", block);
2961 if (!getgenericconfig(cf, block,
2962 "server", CONF_MSTR, &servers,
2963 "accountingServer", CONF_MSTR, &accservers,
2964 "ReplyMessage", CONF_STR, &msg,
2965 "AccountingResponse", CONF_BLN, &accresp,
2968 debugx(1, DBG_ERR, "configuration error");
2970 addrealm(realms, val, servers, accservers, msg, accresp);
2974 int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2975 char **rmattrs = NULL, **rmvattrs = NULL;
2976 char **addattrs = NULL, **addvattrs = NULL;
2977 char **modattrs = NULL;
2979 debug(DBG_DBG, "confrewrite_cb called for %s", block);
2981 if (!getgenericconfig(cf, block,
2982 "removeAttribute", CONF_MSTR, &rmattrs,
2983 "removeVendorAttribute", CONF_MSTR, &rmvattrs,
2984 "addAttribute", CONF_MSTR, &addattrs,
2985 "addVendorAttribute", CONF_MSTR, &addvattrs,
2986 "modifyAttribute", CONF_MSTR, &modattrs,
2989 debugx(1, DBG_ERR, "configuration error");
2990 addrewrite(val, rmattrs, rmvattrs, addattrs, addvattrs, modattrs);
2994 int setprotoopts(uint8_t type, char **listenargs, char *sourcearg) {
2995 struct commonprotoopts *protoopts;
2997 protoopts = malloc(sizeof(struct commonprotoopts));
3000 memset(protoopts, 0, sizeof(struct commonprotoopts));
3001 protoopts->listenargs = listenargs;
3002 protoopts->sourcearg = sourcearg;
3003 protodefs[type]->setprotoopts(protoopts);
3007 void getmainconfig(const char *configfile) {
3008 long int addttl = LONG_MIN, loglevel = LONG_MIN;
3009 struct gconffile *cfs;
3010 char **listenargs[RAD_PROTOCOUNT];
3011 char *sourcearg[RAD_PROTOCOUNT];
3014 cfs = openconfigfile(configfile);
3015 memset(&options, 0, sizeof(options));
3016 memset(&listenargs, 0, sizeof(listenargs));
3017 memset(&sourcearg, 0, sizeof(sourcearg));
3019 clconfs = list_create();
3021 debugx(1, DBG_ERR, "malloc failed");
3023 srvconfs = list_create();
3025 debugx(1, DBG_ERR, "malloc failed");
3027 realms = list_create();
3029 debugx(1, DBG_ERR, "malloc failed");
3031 rewriteconfs = hash_create();
3033 debugx(1, DBG_ERR, "malloc failed");
3035 if (!getgenericconfig(&cfs, NULL,
3037 "ListenUDP", CONF_MSTR, &listenargs[RAD_UDP],
3038 "SourceUDP", CONF_STR, &sourcearg[RAD_UDP],
3041 "ListenTCP", CONF_MSTR, &listenargs[RAD_TCP],
3042 "SourceTCP", CONF_STR, &sourcearg[RAD_TCP],
3045 "ListenTLS", CONF_MSTR, &listenargs[RAD_TLS],
3046 "SourceTLS", CONF_STR, &sourcearg[RAD_TLS],
3049 "ListenDTLS", CONF_MSTR, &listenargs[RAD_DTLS],
3050 "SourceDTLS", CONF_STR, &sourcearg[RAD_DTLS],
3052 "TTLAttribute", CONF_STR, &options.ttlattr,
3053 "addTTL", CONF_LINT, &addttl,
3054 "LogLevel", CONF_LINT, &loglevel,
3055 "LogDestination", CONF_STR, &options.logdestination,
3056 "LoopPrevention", CONF_BLN, &options.loopprevention,
3057 "Client", CONF_CBK, confclient_cb, NULL,
3058 "Server", CONF_CBK, confserver_cb, NULL,
3059 "Realm", CONF_CBK, confrealm_cb, NULL,
3060 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
3061 "TLS", CONF_CBK, conftls_cb, NULL,
3063 "Rewrite", CONF_CBK, confrewrite_cb, NULL,
3066 debugx(1, DBG_ERR, "configuration error");
3068 if (loglevel != LONG_MIN) {
3069 if (loglevel < 1 || loglevel > 4)
3070 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3 or 4", configfile, loglevel);
3071 options.loglevel = (uint8_t)loglevel;
3073 if (addttl != LONG_MIN) {
3074 if (addttl < 1 || addttl > 255)
3075 debugx(1, DBG_ERR, "error in %s, value of option addTTL is %d, must be 1-255", configfile, addttl);
3076 options.addttl = (uint8_t)addttl;
3078 if (!setttlattr(&options, DEFAULT_TTL_ATTR))
3079 debugx(1, DBG_ERR, "Failed to set TTLAttribute, exiting");
3081 for (i = 0; i < RAD_PROTOCOUNT; i++)
3082 if (listenargs[i] || sourcearg[i])
3083 setprotoopts(i, listenargs[i], sourcearg[i]);
3086 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile, char **pidfile) {
3089 while ((c = getopt(argc, argv, "c:d:i:fpv")) != -1) {
3092 *configfile = optarg;
3095 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3096 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3097 *loglevel = *optarg - '0';
3109 debug(DBG_ERR, "radsecproxy revision $Rev$");
3110 debug(DBG_ERR, "This binary was built with support for the following transports:");
3112 debug(DBG_ERR, " UDP");
3115 debug(DBG_ERR, " TCP");
3118 debug(DBG_ERR, " TLS");
3121 debug(DBG_ERR, " DTLS");
3128 if (!(argc - optind))
3132 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -i pidfile ] [ -p ] [ -v ]", argv[0]);
3136 int daemon(int a, int b) {
3144 for (i = 0; i < 3; i++) {
3146 open("/dev/null", O_RDWR);
3152 void *sighandler(void *arg) {
3157 sigemptyset(&sigset);
3158 sigaddset(&sigset, SIGHUP);
3159 sigaddset(&sigset, SIGPIPE);
3160 sigwait(&sigset, &sig);
3163 /* completely ignoring this */
3166 debug(DBG_INFO, "sighandler: got SIGHUP");
3170 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3173 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3178 int createpidfile(const char *pidfile) {
3180 FILE *f = fopen(pidfile, "w");
3182 r = fprintf(f, "%d\n", getpid());
3183 return f && !fclose(f) && r >= 0;
3186 int main(int argc, char **argv) {
3189 struct list_node *entry;
3190 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3191 char *configfile = NULL, *pidfile = NULL;
3192 struct clsrvconf *srvconf;
3195 debug_init("radsecproxy");
3196 debug_set_level(DEBUG_LEVEL);
3198 for (i = 0; i < RAD_PROTOCOUNT; i++)
3199 protodefs[i] = protoinits[i](i);
3201 /* needed even if no TLS/DTLS transport */
3204 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile, &pidfile);
3206 debug_set_level(loglevel);
3207 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3209 options.loglevel = loglevel;
3210 else if (options.loglevel)
3211 debug_set_level(options.loglevel);
3213 debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
3214 free(options.logdestination);
3216 if (!list_first(clconfs))
3217 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3218 if (!list_first(realms))
3219 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3222 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3224 if (!foreground && (daemon(0, 0) < 0))
3225 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3227 debug_timestamp_on();
3228 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3229 if (pidfile && !createpidfile(pidfile))
3230 debugx(1, DBG_ERR, "failed to create pidfile %s: %s", pidfile, strerror(errno));
3232 sigemptyset(&sigset);
3233 /* exit on all but SIGHUP|SIGPIPE, ignore more? */
3234 sigaddset(&sigset, SIGHUP);
3235 sigaddset(&sigset, SIGPIPE);
3236 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3237 pthread_create(&sigth, NULL, sighandler, NULL);
3239 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3240 srvconf = (struct clsrvconf *)entry->data;
3241 if (srvconf->dynamiclookupcommand)
3243 if (!addserver(srvconf))
3244 debugx(1, DBG_ERR, "failed to add server");
3245 if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
3246 (void *)(srvconf->servers)))
3247 debugx(1, DBG_ERR, "pthread_create failed");
3250 for (i = 0; i < RAD_PROTOCOUNT; i++) {
3253 if (protodefs[i]->initextra)
3254 protodefs[i]->initextra();
3255 if (find_clconf_type(i, NULL))
3259 /* just hang around doing nothing, anything to do here? */
3264 /* Local Variables: */
3265 /* c-file-style: "stroustrup" */