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>
16 /* For UDP there is one server instance consisting of udpserverrd and udpserverth
17 * rd is responsible for init and launching wr
18 * For TLS there is a server instance that launches tlsserverrd for each TLS peer
19 * each tlsserverrd launches tlsserverwr
20 * For each UDP/TLS peer there is clientrd and clientwr, clientwr is responsible
21 * for init and launching rd
23 * serverrd will receive a request, processes it and puts it in the requestq of
24 * the appropriate clientwr
25 * clientwr monitors its requestq and sends requests
26 * clientrd looks for responses, processes them and puts them in the replyq of
27 * the peer the request came from
28 * serverwr monitors its reply and sends replies
30 * In addition to the main thread, we have:
31 * If UDP peers are configured, there will be 2 + 2 * #peers UDP threads
32 * If TLS peers are configured, there will initially be 2 * #peers TLS threads
33 * For each TLS peer connecting to us there will be 2 more TLS threads
34 * This is only for connected peers
35 * Example: With 3 UDP peers and 30 TLS peers, there will be a max of
36 * 1 + (2 + 2 * 3) + (2 * 30) + (2 * 30) = 129 threads
40 * May segfault when dtls connections go down? More testing needed
41 * Remove expired stuff from clients request list?
42 * Multiple outgoing connections if not enough IDs? (multiple servers per conf?)
43 * Useful for TCP accounting? Now we require separate server config for alt port
47 #include <sys/socket.h>
48 #include <netinet/in.h>
57 #include <sys/types.h>
60 #include <arpa/inet.h>
64 #include <openssl/ssl.h>
65 #include <openssl/rand.h>
66 #include <openssl/err.h>
67 #include <openssl/md5.h>
73 #include "radsecproxy.h"
79 static struct options options;
80 static struct list *clconfs, *srvconfs;
81 static struct list *realms;
82 static struct hash *rewriteconfs;
84 static pthread_mutex_t *ssl_locks = NULL;
85 static long *ssl_lock_count;
88 static const struct protodefs *protodefs[RAD_PROTOCOUNT];
90 /* minimum required declarations to avoid reordering code */
91 struct realm *adddynamicrealmserver(struct realm *realm, char *id);
92 int dynamicconfig(struct server *server);
93 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
94 void freerealm(struct realm *realm);
95 void freeclsrvconf(struct clsrvconf *conf);
96 void freerq(struct request *rq);
97 void freerqoutdata(struct rqout *rqout);
98 void rmclientrq(struct request *rq, uint8_t id);
100 static const struct protodefs *(*protoinits[])(uint8_t) = { udpinit, tlsinit, tcpinit, dtlsinit };
102 uint8_t protoname2int(const char *name) {
105 for (i = 0; i < RAD_PROTOCOUNT; i++)
106 if (protodefs[i] && protodefs[i]->name && !strcasecmp(protodefs[i]->name, name))
111 /* callbacks for making OpenSSL thread safe */
112 unsigned long ssl_thread_id() {
113 return (unsigned long)pthread_self();
116 void ssl_locking_callback(int mode, int type, const char *file, int line) {
117 if (mode & CRYPTO_LOCK) {
118 pthread_mutex_lock(&ssl_locks[type]);
119 ssl_lock_count[type]++;
121 pthread_mutex_unlock(&ssl_locks[type]);
124 /* returns 1 if the len first bits are equal, else 0 */
125 int prefixmatch(void *a1, void *a2, uint8_t len) {
126 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
127 uint8_t r, l = len / 8;
128 if (l && memcmp(a1, a2, l))
133 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
136 /* returns next config with matching address, or NULL */
137 struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur, uint8_t server_p) {
138 struct list_node *entry;
139 struct clsrvconf *conf;
141 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
142 conf = (struct clsrvconf *)entry->data;
143 if (conf->type == type && addressmatches(conf->hostports, addr, server_p)) {
152 struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
153 return find_conf(type, addr, clconfs, cur, 0);
156 struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
157 return find_conf(type, addr, srvconfs, cur, 1);
160 /* returns next config of given type, or NULL */
161 struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
162 struct list_node *entry;
163 struct clsrvconf *conf;
165 for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
166 conf = (struct clsrvconf *)entry->data;
167 if (conf->type == type) {
176 struct gqueue *newqueue() {
179 q = malloc(sizeof(struct gqueue));
181 debugx(1, DBG_ERR, "malloc failed");
182 q->entries = list_create();
184 debugx(1, DBG_ERR, "malloc failed");
185 pthread_mutex_init(&q->mutex, NULL);
186 pthread_cond_init(&q->cond, NULL);
190 void removequeue(struct gqueue *q) {
191 struct list_node *entry;
195 pthread_mutex_lock(&q->mutex);
196 for (entry = list_first(q->entries); entry; entry = list_next(entry))
197 freerq((struct request *)entry);
198 list_destroy(q->entries);
199 pthread_cond_destroy(&q->cond);
200 pthread_mutex_unlock(&q->mutex);
201 pthread_mutex_destroy(&q->mutex);
205 void freebios(struct gqueue *q) {
208 pthread_mutex_lock(&q->mutex);
209 while ((bio = (BIO *)list_shift(q->entries)))
211 pthread_mutex_unlock(&q->mutex);
215 struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
216 struct client *new = malloc(sizeof(struct client));
219 debug(DBG_ERR, "malloc failed");
224 pthread_mutex_lock(conf->lock);
225 if (!conf->clients) {
226 conf->clients = list_create();
227 if (!conf->clients) {
229 pthread_mutex_unlock(conf->lock);
230 debug(DBG_ERR, "malloc failed");
235 memset(new, 0, sizeof(struct client));
237 if (conf->pdef->addclient)
238 conf->pdef->addclient(new);
240 new->replyq = newqueue();
241 list_push(conf->clients, new);
243 pthread_mutex_unlock(conf->lock);
247 void removeclientrqs_sendrq_freeserver_lock(uint8_t wantlock) {
248 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
251 pthread_mutex_lock(&lock);
253 pthread_mutex_unlock(&lock);
256 void removeclientrqs(struct client *client) {
261 removeclientrqs_sendrq_freeserver_lock(1);
262 for (i = 0; i < MAX_REQUESTS; i++) {
267 rqout = rq->to->requests + rq->newid;
268 pthread_mutex_lock(rqout->lock);
269 if (rqout->rq == rq) /* still pointing to our request */
270 freerqoutdata(rqout);
271 pthread_mutex_unlock(rqout->lock);
275 removeclientrqs_sendrq_freeserver_lock(0);
278 void removelockedclient(struct client *client) {
279 struct clsrvconf *conf;
283 removeclientrqs(client);
284 removequeue(client->replyq);
285 list_removedata(conf->clients, client);
291 void removeclient(struct client *client) {
292 struct clsrvconf *conf;
298 pthread_mutex_lock(conf->lock);
299 removelockedclient(client);
300 pthread_mutex_unlock(conf->lock);
303 void freeserver(struct server *server, uint8_t destroymutex) {
304 struct rqout *rqout, *end;
309 removeclientrqs_sendrq_freeserver_lock(1);
310 if (server->requests) {
311 rqout = server->requests;
312 for (end = rqout + MAX_REQUESTS; rqout < end; rqout++) {
314 rqout->rq->to = NULL;
315 freerqoutdata(rqout);
316 pthread_mutex_destroy(rqout->lock);
319 free(server->requests);
322 freebios(server->rbios);
323 free(server->dynamiclookuparg);
325 SSL_free(server->ssl);
327 pthread_mutex_destroy(&server->lock);
328 pthread_cond_destroy(&server->newrq_cond);
329 pthread_mutex_destroy(&server->newrq_mutex);
331 removeclientrqs_sendrq_freeserver_lock(0);
335 int addserver(struct clsrvconf *conf) {
339 debug(DBG_ERR, "addserver: currently works with just one server per conf");
342 conf->servers = malloc(sizeof(struct server));
343 if (!conf->servers) {
344 debug(DBG_ERR, "malloc failed");
347 memset(conf->servers, 0, sizeof(struct server));
348 conf->servers->conf = conf;
351 if (conf->type == RAD_DTLS)
352 conf->servers->rbios = newqueue();
354 conf->pdef->setsrcres();
356 conf->servers->sock = -1;
357 if (conf->pdef->addserverextra)
358 conf->pdef->addserverextra(conf);
360 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct rqout));
361 if (!conf->servers->requests) {
362 debug(DBG_ERR, "malloc failed");
365 for (i = 0; i < MAX_REQUESTS; i++) {
366 conf->servers->requests[i].lock = malloc(sizeof(pthread_mutex_t));
367 if (!conf->servers->requests[i].lock) {
368 debug(DBG_ERR, "malloc failed");
371 if (pthread_mutex_init(conf->servers->requests[i].lock, NULL)) {
372 debug(DBG_ERR, "mutex init failed");
373 free(conf->servers->requests[i].lock);
374 conf->servers->requests[i].lock = NULL;
378 if (pthread_mutex_init(&conf->servers->lock, NULL)) {
379 debug(DBG_ERR, "mutex init failed");
382 conf->servers->newrq = 0;
383 if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
384 debug(DBG_ERR, "mutex init failed");
385 pthread_mutex_destroy(&conf->servers->lock);
388 if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
389 debug(DBG_ERR, "mutex init failed");
390 pthread_mutex_destroy(&conf->servers->newrq_mutex);
391 pthread_mutex_destroy(&conf->servers->lock);
398 freeserver(conf->servers, 0);
399 conf->servers = NULL;
403 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
405 if (ATTRTYPE(attrs) == type)
407 length -= ATTRLEN(attrs);
408 attrs += ATTRLEN(attrs);
413 struct request *newrqref(struct request *rq) {
419 void freerq(struct request *rq) {
422 debug(DBG_DBG, "freerq: called with refcount %d", rq->refcount);
425 if (rq->origusername)
426 free(rq->origusername);
432 radmsg_free(rq->msg);
436 void freerqoutdata(struct rqout *rqout) {
440 if (rqout->rq->buf) {
441 free(rqout->rq->buf);
442 rqout->rq->buf = NULL;
448 memset(&rqout->expiry, 0, sizeof(struct timeval));
451 void sendrq(struct request *rq) {
455 removeclientrqs_sendrq_freeserver_lock(1);
460 start = to->conf->statusserver ? 1 : 0;
461 pthread_mutex_lock(&to->newrq_mutex);
462 if (start && rq->msg->code == RAD_Status_Server) {
463 pthread_mutex_lock(to->requests[0].lock);
464 if (to->requests[0].rq) {
465 pthread_mutex_unlock(to->requests[0].lock);
466 debug(DBG_INFO, "sendrq: status server already in queue, dropping request");
473 /* might simplify if only try nextid, might be ok */
474 for (i = to->nextid; i < MAX_REQUESTS; i++) {
475 if (!to->requests[i].rq) {
476 pthread_mutex_lock(to->requests[i].lock);
477 if (!to->requests[i].rq)
479 pthread_mutex_unlock(to->requests[i].lock);
482 if (i == MAX_REQUESTS) {
483 for (i = start; i < to->nextid; i++) {
484 if (!to->requests[i].rq) {
485 pthread_mutex_lock(to->requests[i].lock);
486 if (!to->requests[i].rq)
488 pthread_mutex_unlock(to->requests[i].lock);
491 if (i == to->nextid) {
492 debug(DBG_INFO, "sendrq: no room in queue, dropping request");
497 rq->newid = (uint8_t)i;
498 rq->msg->id = (uint8_t)i;
499 rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
501 pthread_mutex_unlock(to->requests[i].lock);
502 debug(DBG_ERR, "sendrq: radmsg2buf failed");
506 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->name);
507 to->requests[i].rq = rq;
508 pthread_mutex_unlock(to->requests[i].lock);
509 if (i >= start) /* i is not reserved for statusserver */
514 debug(DBG_DBG, "sendrq: signalling client writer");
515 pthread_cond_signal(&to->newrq_cond);
518 pthread_mutex_unlock(&to->newrq_mutex);
519 removeclientrqs_sendrq_freeserver_lock(0);
524 rmclientrq(rq, rq->msg->id);
526 pthread_mutex_unlock(&to->newrq_mutex);
527 removeclientrqs_sendrq_freeserver_lock(0);
530 void sendreply(struct request *rq) {
532 struct client *to = rq->from;
535 rq->replybuf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
536 radmsg_free(rq->msg);
540 debug(DBG_ERR, "sendreply: radmsg2buf failed");
544 pthread_mutex_lock(&to->replyq->mutex);
545 first = list_first(to->replyq->entries) == NULL;
547 if (!list_push(to->replyq->entries, rq)) {
548 pthread_mutex_unlock(&to->replyq->mutex);
550 debug(DBG_ERR, "sendreply: malloc failed");
555 debug(DBG_DBG, "signalling server writer");
556 pthread_cond_signal(&to->replyq->cond);
558 pthread_mutex_unlock(&to->replyq->mutex);
561 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
562 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
563 static unsigned char first = 1;
564 static EVP_MD_CTX mdctx;
565 unsigned char hash[EVP_MAX_MD_SIZE], *input;
567 uint8_t i, offset = 0, out[128];
569 pthread_mutex_lock(&lock);
571 EVP_MD_CTX_init(&mdctx);
577 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
578 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
579 !EVP_DigestUpdate(&mdctx, input, 16) ||
580 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
582 pthread_mutex_unlock(&lock);
585 for (i = 0; i < 16; i++)
586 out[offset + i] = hash[i] ^ in[offset + i];
587 input = out + offset - 16;
592 memcpy(in, out, len);
593 pthread_mutex_unlock(&lock);
597 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
598 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
599 static unsigned char first = 1;
600 static EVP_MD_CTX mdctx;
601 unsigned char hash[EVP_MAX_MD_SIZE], *input;
603 uint8_t i, offset = 0, out[128];
605 pthread_mutex_lock(&lock);
607 EVP_MD_CTX_init(&mdctx);
613 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
614 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
615 !EVP_DigestUpdate(&mdctx, input, 16) ||
616 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
618 pthread_mutex_unlock(&lock);
621 for (i = 0; i < 16; i++)
622 out[offset + i] = hash[i] ^ in[offset + i];
628 memcpy(in, out, len);
629 pthread_mutex_unlock(&lock);
633 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
634 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
635 static unsigned char first = 1;
636 static EVP_MD_CTX mdctx;
637 unsigned char hash[EVP_MAX_MD_SIZE];
641 pthread_mutex_lock(&lock);
643 EVP_MD_CTX_init(&mdctx);
648 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
649 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
650 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
653 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
654 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
655 !EVP_DigestUpdate(&mdctx, auth, 16) ||
656 !EVP_DigestUpdate(&mdctx, salt, 2) ||
657 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
658 pthread_mutex_unlock(&lock);
663 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
666 for (i = 0; i < 16; i++)
669 for (offset = 16; offset < len; offset += 16) {
671 printf("text + offset - 16 c(%d): ", offset / 16);
672 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
674 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
675 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
676 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
677 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
679 pthread_mutex_unlock(&lock);
683 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
686 for (i = 0; i < 16; i++)
687 text[offset + i] ^= hash[i];
691 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
694 pthread_mutex_unlock(&lock);
698 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
699 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
700 static unsigned char first = 1;
701 static EVP_MD_CTX mdctx;
702 unsigned char hash[EVP_MAX_MD_SIZE];
707 pthread_mutex_lock(&lock);
709 EVP_MD_CTX_init(&mdctx);
714 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
715 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
716 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
719 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
720 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
721 !EVP_DigestUpdate(&mdctx, auth, 16) ||
722 !EVP_DigestUpdate(&mdctx, salt, 2) ||
723 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
724 pthread_mutex_unlock(&lock);
729 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
732 for (i = 0; i < 16; i++)
733 plain[i] = text[i] ^ hash[i];
735 for (offset = 16; offset < len; offset += 16) {
737 printf("text + offset - 16 c(%d): ", offset / 16);
738 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
740 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
741 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
742 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
743 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
745 pthread_mutex_unlock(&lock);
749 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
752 for (i = 0; i < 16; i++)
753 plain[offset + i] = text[offset + i] ^ hash[i];
756 memcpy(text, plain, len);
758 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
761 pthread_mutex_unlock(&lock);
765 struct realm *newrealmref(struct realm *r) {
771 /* returns with lock on realm */
772 struct realm *id2realm(struct list *realmlist, char *id) {
773 struct list_node *entry;
774 struct realm *realm, *subrealm;
776 /* need to do locking for subrealms and check subrealm timers */
777 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
778 realm = (struct realm *)entry->data;
779 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
780 pthread_mutex_lock(&realm->mutex);
781 if (realm->subrealms) {
782 subrealm = id2realm(realm->subrealms, id);
784 pthread_mutex_unlock(&realm->mutex);
788 return newrealmref(realm);
794 int hasdynamicserver(struct list *srvconfs) {
795 struct list_node *entry;
797 for (entry = list_first(srvconfs); entry; entry = list_next(entry))
798 if (((struct clsrvconf *)entry->data)->dynamiclookupcommand)
803 /* helper function, only used by removeserversubrealms() */
804 void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
805 struct list_node *entry, *entry2;
808 for (entry = list_first(realmlist); entry;) {
809 realm = newrealmref((struct realm *)entry->data);
810 pthread_mutex_lock(&realm->mutex);
811 entry = list_next(entry);
813 if (realm->srvconfs) {
814 for (entry2 = list_first(realm->srvconfs); entry2; entry2 = list_next(entry2))
815 if (entry2->data == srv)
817 list_removedata(realm->srvconfs, srv);
819 if (realm->accsrvconfs) {
820 for (entry2 = list_first(realm->accsrvconfs); entry2; entry2 = list_next(entry2))
821 if (entry2->data == srv)
823 list_removedata(realm->accsrvconfs, srv);
826 /* remove subrealm if no dynamic servers left */
827 if (!hasdynamicserver(realm->srvconfs) && !hasdynamicserver(realm->accsrvconfs)) {
828 while (list_shift(realm->srvconfs))
830 list_destroy(realm->srvconfs);
831 realm->srvconfs = NULL;
832 while (list_shift(realm->accsrvconfs))
834 list_destroy(realm->accsrvconfs);
835 realm->accsrvconfs = NULL;
836 list_removedata(realmlist, realm);
838 pthread_mutex_unlock(&realm->mutex);
843 void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
844 struct list_node *entry;
847 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
848 realm = (struct realm *)entry->data;
849 pthread_mutex_lock(&realm->mutex);
850 if (realm->subrealms) {
851 _internal_removeserversubrealms(realm->subrealms, srv);
852 if (!list_first(realm->subrealms)) {
853 list_destroy(realm->subrealms);
854 realm->subrealms = NULL;
857 pthread_mutex_unlock(&realm->mutex);
861 int attrvalidate(unsigned char *attrs, int length) {
863 if (ATTRLEN(attrs) < 2) {
864 debug(DBG_INFO, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
867 length -= ATTRLEN(attrs);
869 debug(DBG_INFO, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
872 attrs += ATTRLEN(attrs);
875 debug(DBG_INFO, "attrvalidate: malformed packet? remaining byte after last attribute");
879 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
880 if (len < 16 || len > 128 || len % 16) {
881 debug(DBG_WARN, "pwdrecrypt: invalid password length");
885 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
886 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
890 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
892 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
893 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
899 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
902 if (!msmppdecrypt(msmpp + 2, len - 2, (uint8_t *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
903 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
906 if (!msmppencrypt(msmpp + 2, len - 2, (uint8_t *)newsecret, strlen(newsecret), newauth, msmpp)) {
907 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
913 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
914 char *oldsecret, char *newsecret) {
917 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
918 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
919 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->rqauth))
925 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint32_t subattr) {
929 for (; attrs[0]; attrs += 2)
930 if (attrs[0] == vendor && attrs[1] == subattr)
935 /* returns 1 if entire element is to be removed, else 0 */
936 int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
937 uint8_t alen, sublen;
941 if (!removevendorattrs)
944 memcpy(&vendor, attr->v, 4);
945 vendor = ntohl(vendor);
946 while (*removevendorattrs && *removevendorattrs != vendor)
947 removevendorattrs += 2;
948 if (!*removevendorattrs)
951 if (findvendorsubattr(removevendorattrs, vendor, 256))
952 return 1; /* remove entire vendor attribute */
954 sublen = attr->l - 4;
955 subattrs = attr->v + 4;
957 if (!attrvalidate(subattrs, sublen)) {
958 debug(DBG_INFO, "dovendorrewrite: vendor attribute validation failed, no rewrite");
963 alen = ATTRLEN(subattrs);
965 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
966 memmove(subattrs, subattrs + alen, sublen);
974 void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
975 struct list_node *n, *p;
979 n = list_first(msg->attrs);
981 attr = (struct tlv *)n->data;
982 if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
983 (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
984 list_removedata(msg->attrs, attr);
986 n = p ? list_next(p) : list_first(msg->attrs);
993 int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
997 for (n = list_first(addattrs); n; n = list_next(n)) {
998 a = copytlv((struct tlv *)n->data);
1001 if (!radmsg_add(msg, a)) {
1009 int resizeattr(struct tlv *attr, uint8_t newlen) {
1012 if (newlen != attr->l) {
1013 newv = realloc(attr->v, newlen);
1022 int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
1023 size_t nmatch = 10, reslen = 0, start = 0;
1024 regmatch_t pmatch[10], *pfield;
1028 in = stringcopy((char *)attr->v, attr->l);
1032 if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
1037 out = modattr->replacement;
1039 for (i = start; out[i]; i++) {
1040 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1041 pfield = &pmatch[out[i + 1] - '0'];
1042 if (pfield->rm_so >= 0) {
1043 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1049 reslen += i - start;
1051 debug(DBG_INFO, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
1056 if (!resizeattr(attr, reslen)) {
1063 for (i = start; out[i]; i++) {
1064 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1065 pfield = &pmatch[out[i + 1] - '0'];
1066 if (pfield->rm_so >= 0) {
1067 memcpy(attr->v + reslen, out + start, i - start);
1068 reslen += i - start;
1069 memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1070 reslen += pfield->rm_eo - pfield->rm_so;
1077 memcpy(attr->v + reslen, out + start, i - start);
1081 int dorewritemod(struct radmsg *msg, struct list *modattrs) {
1082 struct list_node *n, *m;
1084 for (n = list_first(msg->attrs); n; n = list_next(n))
1085 for (m = list_first(modattrs); m; m = list_next(m))
1086 if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
1087 !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
1092 int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
1095 if (rewrite->removeattrs || rewrite->removevendorattrs)
1096 dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
1097 if (rewrite->addattrs && !dorewriteadd(msg, rewrite->addattrs))
1099 if (rewrite->modattrs && !dorewritemod(msg, rewrite->modattrs))
1104 int rewriteusername(struct request *rq, struct tlv *attr) {
1105 char *orig = (char *)tlv2str(attr);
1106 if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
1110 if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
1111 rq->origusername = (char *)orig;
1117 int addvendorattr(struct radmsg *msg, uint32_t vendor, struct tlv *attr) {
1124 vendor = htonl(vendor);
1125 memcpy(v, &vendor, 4);
1126 tlv2buf(v + 4, attr);
1128 vattr = maketlv(RAD_Attr_Vendor_Specific, l, v);
1129 if (vattr && radmsg_add(msg, vattr))
1136 void addttlattr(struct radmsg *msg, uint32_t *attrtype, uint8_t addttl) {
1143 if (attrtype[1] == 256) { /* not vendor */
1144 attr = maketlv(attrtype[0], 4, ttl);
1145 if (attr && !radmsg_add(msg, attr))
1148 attr = maketlv(attrtype[1], 4, ttl);
1150 addvendorattr(msg, attrtype[0], attr);
1156 int decttl(uint8_t l, uint8_t *v) {
1163 while (i >= 0 && !v[i])
1167 for (i--; i >= 0 && !v[i]; i--);
1176 /* returns -1 if no ttl, 0 if exceeded, 1 if ok */
1177 int checkttl(struct radmsg *msg, uint32_t *attrtype) {
1178 uint8_t alen, *subattrs;
1180 struct list_node *node;
1184 if (attrtype[1] == 256) { /* not vendor */
1185 attr = radmsg_gettype(msg, attrtype[0]);
1187 return decttl(attr->l, attr->v);
1189 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1190 attr = (struct tlv *)node->data;
1191 if (attr->t != RAD_Attr_Vendor_Specific || attr->l <= 4)
1193 memcpy(&vendor, attr->v, 4);
1194 if (ntohl(vendor) != attrtype[0])
1196 sublen = attr->l - 4;
1197 subattrs = attr->v + 4;
1198 if (!attrvalidate(subattrs, sublen))
1200 while (sublen > 1) {
1201 if (ATTRTYPE(subattrs) == attrtype[1])
1202 return decttl(ATTRVALLEN(subattrs), ATTRVAL(subattrs));
1203 alen = ATTRLEN(subattrs);
1211 const char *radmsgtype2string(uint8_t code) {
1212 static const char *rad_msg_names[] = {
1213 "", "Access-Request", "Access-Accept", "Access-Reject",
1214 "Accounting-Request", "Accounting-Response", "", "",
1215 "", "", "", "Access-Challenge",
1216 "Status-Server", "Status-Client"
1218 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1221 void char2hex(char *h, unsigned char c) {
1222 static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
1223 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
1224 h[0] = hexdigits[c / 16];
1225 h[1] = hexdigits[c % 16];
1229 uint8_t *radattr2ascii(struct tlv *attr) {
1237 for (i = 0; i < attr->l; i++)
1238 if (attr->v[i] < 32 || attr->v[i] > 126)
1241 return (uint8_t *)stringcopy((char *)attr->v, attr->l);
1248 for (i = 0; i < attr->l; i++)
1249 if (attr->v[i] < 32 || attr->v[i] > 126) {
1251 char2hex((char *)d, attr->v[i]);
1259 void acclog(struct radmsg *msg, struct client *from) {
1263 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1265 debug(DBG_INFO, "acclog: accounting-request from client %s (%s) without username attribute", from->conf->name, addr2string(from->addr));
1268 username = radattr2ascii(attr);
1270 debug(DBG_INFO, "acclog: accounting-request from client %s (%s) with username: %s", from->conf->name, addr2string(from->addr), username);
1276 void respond(struct request *rq, uint8_t code, char *message) {
1280 msg = radmsg_init(code, rq->msg->id, rq->msg->auth);
1282 debug(DBG_ERR, "respond: malloc failed");
1285 if (message && *message) {
1286 attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
1287 if (!attr || !radmsg_add(msg, attr)) {
1290 debug(DBG_ERR, "respond: malloc failed");
1295 radmsg_free(rq->msg);
1297 debug(DBG_DBG, "respond: sending %s to %s (%s)", radmsgtype2string(msg->code), rq->from->conf->name, addr2string(rq->from->addr));
1298 sendreply(newrqref(rq));
1301 struct clsrvconf *choosesrvconf(struct list *srvconfs) {
1302 struct list_node *entry;
1303 struct clsrvconf *server, *best = NULL, *first = NULL;
1305 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1306 server = (struct clsrvconf *)entry->data;
1307 if (!server->servers)
1311 if (!server->servers->connectionok && !server->servers->dynstartup)
1313 if (!server->servers->lostrqs)
1319 if (server->servers->lostrqs < best->servers->lostrqs)
1322 return best ? best : first;
1325 /* returns with lock on realm, protects from server changes while in use by radsrv/sendrq */
1326 struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
1327 struct clsrvconf *srvconf;
1328 struct realm *subrealm;
1329 struct server *server = NULL;
1330 char *id = (char *)tlv2str(username);
1334 /* returns with lock on realm */
1335 *realm = id2realm(realms, id);
1338 debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
1339 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1340 if (srvconf && !(*realm)->parent && !srvconf->servers && srvconf->dynamiclookupcommand) {
1341 subrealm = adddynamicrealmserver(*realm, id);
1343 pthread_mutex_lock(&subrealm->mutex);
1344 pthread_mutex_unlock(&(*realm)->mutex);
1347 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1351 server = srvconf->servers;
1359 struct request *newrequest() {
1362 rq = malloc(sizeof(struct request));
1364 debug(DBG_ERR, "newrequest: malloc failed");
1367 memset(rq, 0, sizeof(struct request));
1369 gettimeofday(&rq->created, NULL);
1373 int addclientrq(struct request *rq) {
1377 r = rq->from->rqs[rq->rqid];
1379 if (rq->udpport == r->udpport && !memcmp(rq->rqauth, r->rqauth, 16)) {
1380 gettimeofday(&now, NULL);
1381 if (now.tv_sec - r->created.tv_sec < r->from->conf->dupinterval) {
1383 debug(DBG_INFO, "addclientrq: already sent reply to request with id %d from %s, resending", rq->rqid, addr2string(r->from->addr));
1384 sendreply(newrqref(r));
1386 debug(DBG_INFO, "addclientrq: already got request with id %d from %s, ignoring", rq->rqid, addr2string(r->from->addr));
1392 rq->from->rqs[rq->rqid] = newrqref(rq);
1396 void rmclientrq(struct request *rq, uint8_t id) {
1399 r = rq->from->rqs[id];
1402 rq->from->rqs[id] = NULL;
1406 /* returns 0 if validation/authentication fails, else 1 */
1407 int radsrv(struct request *rq) {
1408 struct radmsg *msg = NULL;
1410 uint8_t *userascii = NULL;
1411 struct realm *realm = NULL;
1412 struct server *to = NULL;
1413 struct client *from = rq->from;
1416 msg = buf2radmsg(rq->buf, (uint8_t *)from->conf->secret, NULL);
1421 debug(DBG_INFO, "radsrv: message validation failed, ignoring packet");
1428 memcpy(rq->rqauth, msg->auth, 16);
1430 debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
1431 if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
1432 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1436 if (!addclientrq(rq))
1439 if (msg->code == RAD_Status_Server) {
1440 respond(rq, RAD_Access_Accept, NULL);
1444 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1446 if (from->conf->rewritein && !dorewrite(msg, from->conf->rewritein))
1449 ttlres = checkttl(msg, options.ttlattrtype);
1451 debug(DBG_INFO, "radsrv: ignoring request from client %s (%s), ttl exceeded", from->conf->name, addr2string(from->addr));
1455 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1457 if (msg->code == RAD_Accounting_Request) {
1459 respond(rq, RAD_Accounting_Response, NULL);
1461 debug(DBG_INFO, "radsrv: ignoring access request, no username attribute");
1465 if (from->conf->rewriteusername && !rewriteusername(rq, attr)) {
1466 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1470 userascii = radattr2ascii(attr);
1473 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
1475 /* will return with lock on the realm */
1476 to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
1478 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1483 if (realm->message && msg->code == RAD_Access_Request) {
1484 debug(DBG_INFO, "radsrv: sending reject to %s (%s) for %s", from->conf->name, addr2string(from->addr), userascii);
1485 respond(rq, RAD_Access_Reject, realm->message);
1486 } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
1488 respond(rq, RAD_Accounting_Response, NULL);
1493 if (options.loopprevention && !strcmp(from->conf->name, to->conf->name)) {
1494 debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s (%s) to server %s, discarding",
1495 from->conf->name, addr2string(from->addr), to->conf->name);
1499 if (msg->code == RAD_Accounting_Request)
1500 memset(msg->auth, 0, 16);
1501 else if (!RAND_bytes(msg->auth, 16)) {
1502 debug(DBG_WARN, "radsrv: failed to generate random auth");
1507 printfchars(NULL, "auth", "%02x ", auth, 16);
1510 attr = radmsg_gettype(msg, RAD_Attr_User_Password);
1512 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
1513 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
1517 attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
1519 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
1520 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
1524 if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
1527 if (ttlres == -1 && (options.addttl || to->conf->addttl))
1528 addttlattr(msg, options.ttlattrtype, to->conf->addttl ? to->conf->addttl : options.addttl);
1533 pthread_mutex_unlock(&realm->mutex);
1538 rmclientrq(rq, msg->id);
1543 pthread_mutex_unlock(&realm->mutex);
1549 void replyh(struct server *server, unsigned char *buf) {
1550 struct client *from;
1551 struct rqout *rqout;
1553 unsigned char *subattrs;
1554 uint8_t *username, *stationid, *replymsg;
1555 struct radmsg *msg = NULL;
1557 struct list_node *node;
1559 server->connectionok = 1;
1560 server->lostrqs = 0;
1562 rqout = server->requests + buf[1];
1563 pthread_mutex_lock(rqout->lock);
1564 if (!rqout->tries) {
1567 debug(DBG_INFO, "replyh: no outstanding request with this id, ignoring reply");
1571 msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rqout->rq->msg->auth);
1575 debug(DBG_INFO, "replyh: message validation failed, ignoring packet");
1578 if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
1579 && msg->code != RAD_Accounting_Response) {
1580 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
1583 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
1585 gettimeofday(&server->lastrcv, NULL);
1587 if (rqout->rq->msg->code == RAD_Status_Server) {
1588 freerqoutdata(rqout);
1589 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->name);
1593 gettimeofday(&server->lastreply, NULL);
1594 from = rqout->rq->from;
1596 if (server->conf->rewritein && !dorewrite(msg, from->conf->rewritein)) {
1597 debug(DBG_INFO, "replyh: rewritein failed");
1601 ttlres = checkttl(msg, options.ttlattrtype);
1603 debug(DBG_INFO, "replyh: ignoring reply from server %s, ttl exceeded", server->conf->name);
1608 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1609 attr = (struct tlv *)node->data;
1610 if (attr->t != RAD_Attr_Vendor_Specific)
1614 if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
1617 sublen = attr->l - 4;
1618 subattrs = attr->v + 4;
1619 if (!attrvalidate(subattrs, sublen) ||
1620 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1621 rqout->rq, server->conf->secret, from->conf->secret) ||
1622 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1623 rqout->rq, server->conf->secret, from->conf->secret))
1627 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
1631 if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
1632 username = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_User_Name));
1634 stationid = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_Calling_Station_Id));
1635 replymsg = radattr2ascii(radmsg_gettype(msg, RAD_Attr_Reply_Message));
1638 debug(DBG_WARN, "%s for user %s stationid %s from %s (%s) to %s (%s)",
1639 radmsgtype2string(msg->code), username, stationid, server->conf->name, replymsg, from->conf->name, addr2string(from->addr));
1642 debug(DBG_WARN, "%s for user %s stationid %s from %s to %s (%s)",
1643 radmsgtype2string(msg->code), username, stationid, server->conf->name, from->conf->name, addr2string(from->addr));
1647 debug(DBG_WARN, "%s for user %s from %s (%s) to %s (%s)",
1648 radmsgtype2string(msg->code), username, server->conf->name, replymsg, from->conf->name, addr2string(from->addr));
1651 debug(DBG_WARN, "%s for user %s from %s to %s (%s)",
1652 radmsgtype2string(msg->code), username, server->conf->name, from->conf->name, addr2string(from->addr));
1658 msg->id = (char)rqout->rq->rqid;
1659 memcpy(msg->auth, rqout->rq->rqauth, 16);
1662 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
1665 if (rqout->rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
1666 if (!resizeattr(attr, strlen(rqout->rq->origusername))) {
1667 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
1670 memcpy(attr->v, rqout->rq->origusername, strlen(rqout->rq->origusername));
1673 if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
1674 debug(DBG_WARN, "replyh: rewriteout failed");
1678 if (ttlres == -1 && (options.addttl || from->conf->addttl))
1679 addttlattr(msg, options.ttlattrtype, from->conf->addttl ? from->conf->addttl : options.addttl);
1681 debug(msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response ? DBG_WARN : DBG_INFO,
1682 "replyh: passing %s to client %s (%s)", radmsgtype2string(msg->code), from->conf->name, addr2string(from->addr));
1684 radmsg_free(rqout->rq->msg);
1685 rqout->rq->msg = msg;
1686 sendreply(newrqref(rqout->rq));
1687 freerqoutdata(rqout);
1688 pthread_mutex_unlock(rqout->lock);
1693 pthread_mutex_unlock(rqout->lock);
1697 struct request *createstatsrvrq() {
1704 rq->msg = radmsg_init(RAD_Status_Server, 0, NULL);
1707 attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
1710 if (!radmsg_add(rq->msg, attr)) {
1721 /* code for removing state not finished */
1722 void *clientwr(void *arg) {
1723 struct server *server = (struct server *)arg;
1724 struct rqout *rqout = NULL;
1725 pthread_t clientrdth;
1726 int i, dynconffail = 0;
1729 struct timeval now, laststatsrv;
1730 struct timespec timeout;
1731 struct request *statsrvrq;
1732 struct clsrvconf *conf;
1734 conf = server->conf;
1736 if (server->dynamiclookuparg && !dynamicconfig(server)) {
1738 server->dynstartup = 0;
1743 if (!resolvehostports(conf->hostports, conf->pdef->socktype)) {
1744 debug(DBG_WARN, "clientwr: resolve failed");
1745 server->dynstartup = 0;
1750 memset(&timeout, 0, sizeof(struct timespec));
1752 if (conf->statusserver) {
1753 gettimeofday(&server->lastrcv, NULL);
1754 gettimeofday(&laststatsrv, NULL);
1757 if (conf->pdef->connecter) {
1758 if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 5 : 0, "clientwr")) {
1759 if (server->dynamiclookuparg) {
1760 server->dynstartup = 0;
1765 server->connectionok = 1;
1766 if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
1767 debug(DBG_ERR, "clientwr: pthread_create failed");
1771 server->connectionok = 1;
1772 server->dynstartup = 0;
1775 pthread_mutex_lock(&server->newrq_mutex);
1776 if (!server->newrq) {
1777 gettimeofday(&now, NULL);
1778 /* random 0-7 seconds */
1779 RAND_bytes(&rnd, 1);
1781 if (conf->statusserver) {
1782 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
1783 if (now.tv_sec - secs > STATUS_SERVER_PERIOD)
1785 if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
1786 timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
1788 if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
1789 timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
1792 if (timeout.tv_sec > now.tv_sec)
1793 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
1795 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
1798 if (server->newrq) {
1799 debug(DBG_DBG, "clientwr: got new request");
1804 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
1806 pthread_mutex_unlock(&server->newrq_mutex);
1808 for (i = 0; i < MAX_REQUESTS; i++) {
1809 if (server->clientrdgone) {
1810 pthread_join(clientrdth, NULL);
1814 for (; i < MAX_REQUESTS; i++) {
1815 rqout = server->requests + i;
1817 pthread_mutex_lock(rqout->lock);
1820 pthread_mutex_unlock(rqout->lock);
1824 if (i == MAX_REQUESTS)
1827 gettimeofday(&now, NULL);
1828 if (now.tv_sec < rqout->expiry.tv_sec) {
1829 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
1830 timeout.tv_sec = rqout->expiry.tv_sec;
1831 pthread_mutex_unlock(rqout->lock);
1835 if (rqout->tries == (*rqout->rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
1836 debug(DBG_DBG, "clientwr: removing expired packet from queue");
1837 if (conf->statusserver) {
1838 if (*rqout->rq->buf == RAD_Status_Server) {
1839 debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->name);
1840 if (server->lostrqs < 255)
1844 debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->name);
1845 if (server->lostrqs < 255)
1848 freerqoutdata(rqout);
1849 pthread_mutex_unlock(rqout->lock);
1853 rqout->expiry.tv_sec = now.tv_sec + conf->retryinterval;
1854 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
1855 timeout.tv_sec = rqout->expiry.tv_sec;
1857 conf->pdef->clientradput(server, rqout->rq->buf);
1858 pthread_mutex_unlock(rqout->lock);
1860 if (conf->statusserver && server->connectionok) {
1861 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
1862 gettimeofday(&now, NULL);
1863 if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
1865 statsrvrq = createstatsrvrq();
1867 statsrvrq->to = server;
1868 debug(DBG_DBG, "clientwr: sending status server to %s", conf->name);
1875 conf->servers = NULL;
1876 if (server->dynamiclookuparg) {
1877 removeserversubrealms(realms, conf);
1881 freeclsrvconf(conf);
1883 freeserver(server, 1);
1884 ERR_remove_state(0);
1888 void createlistener(uint8_t type, char *arg) {
1890 struct addrinfo *res;
1891 int s = -1, on = 1, *sp = NULL;
1892 struct hostportres *hp = newhostport(arg, protodefs[type]->portdefault, 0);
1894 if (!hp || !resolvehostport(hp, protodefs[type]->socktype, 1))
1895 debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
1897 for (res = hp->addrinfo; res; res = res->ai_next) {
1898 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
1900 debug(DBG_WARN, "createlistener: socket failed");
1903 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
1905 disable_DF_bit(s, res);
1908 if (res->ai_family == AF_INET6)
1909 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
1911 if (bind(s, res->ai_addr, res->ai_addrlen)) {
1912 debug(DBG_WARN, "createlistener: bind failed");
1918 sp = malloc(sizeof(int));
1920 debugx(1, DBG_ERR, "malloc failed");
1922 if (pthread_create(&th, NULL, protodefs[type]->listener, (void *)sp))
1923 debugx(1, DBG_ERR, "pthread_create failed");
1927 debugx(1, DBG_ERR, "createlistener: socket/bind failed");
1929 debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type]->name, hp->host ? hp->host : "*", hp->port);
1933 void createlisteners(uint8_t type) {
1937 args = protodefs[type]->getlistenerargs();
1939 for (i = 0; args[i]; i++)
1940 createlistener(type, args[i]);
1942 createlistener(type, NULL);
1950 ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
1951 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
1952 for (i = 0; i < CRYPTO_num_locks(); i++) {
1953 ssl_lock_count[i] = 0;
1954 pthread_mutex_init(&ssl_locks[i], NULL);
1956 CRYPTO_set_id_callback(ssl_thread_id);
1957 CRYPTO_set_locking_callback(ssl_locking_callback);
1959 SSL_load_error_strings();
1962 while (!RAND_status()) {
1965 RAND_seed((unsigned char *)&t, sizeof(time_t));
1966 RAND_seed((unsigned char *)&pid, sizeof(pid));
1970 struct list *addsrvconfs(char *value, char **names) {
1971 struct list *conflist;
1973 struct list_node *entry;
1974 struct clsrvconf *conf = NULL;
1976 if (!names || !*names)
1979 conflist = list_create();
1981 debug(DBG_ERR, "malloc failed");
1985 for (n = 0; names[n]; n++) {
1986 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1987 conf = (struct clsrvconf *)entry->data;
1988 if (!strcasecmp(names[n], conf->name))
1992 debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
1993 list_destroy(conflist);
1996 if (!list_push(conflist, conf)) {
1997 debug(DBG_ERR, "malloc failed");
1998 list_destroy(conflist);
2001 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2006 void freerealm(struct realm *realm) {
2009 debug(DBG_DBG, "freerealm: called with refcount %d", realm->refcount);
2010 if (--realm->refcount)
2014 free(realm->message);
2015 regfree(&realm->regex);
2016 pthread_mutex_destroy(&realm->mutex);
2017 /* if refcount == 0, all subrealms gone */
2018 list_destroy(realm->subrealms);
2019 /* if refcount == 0, all srvconfs gone */
2020 list_destroy(realm->srvconfs);
2021 /* if refcount == 0, all accsrvconfs gone */
2022 list_destroy(realm->accsrvconfs);
2023 freerealm(realm->parent);
2027 struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
2029 struct realm *realm;
2030 char *s, *regex = NULL;
2032 if (*value == '/') {
2033 /* regexp, remove optional trailing / if present */
2034 if (value[strlen(value) - 1] == '/')
2035 value[strlen(value) - 1] = '\0';
2037 /* not a regexp, let us make it one */
2038 if (*value == '*' && !value[1])
2039 regex = stringcopy(".*", 0);
2041 for (n = 0, s = value; *s;)
2044 regex = malloc(strlen(value) + n + 3);
2047 for (n = 1, s = value; *s; s++) {
2057 debug(DBG_ERR, "malloc failed");
2061 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2064 realm = malloc(sizeof(struct realm));
2066 debug(DBG_ERR, "malloc failed");
2069 memset(realm, 0, sizeof(struct realm));
2071 if (pthread_mutex_init(&realm->mutex, NULL)) {
2072 debug(DBG_ERR, "mutex init failed");
2078 realm->name = stringcopy(value, 0);
2080 debug(DBG_ERR, "malloc failed");
2083 if (message && strlen(message) > 253) {
2084 debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
2087 realm->message = message;
2088 realm->accresp = accresp;
2090 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2091 debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2095 if (servers && *servers) {
2096 realm->srvconfs = addsrvconfs(value, servers);
2097 if (!realm->srvconfs)
2101 if (accservers && *accservers) {
2102 realm->accsrvconfs = addsrvconfs(value, accservers);
2103 if (!realm->accsrvconfs)
2107 if (!list_push(realmlist, realm)) {
2108 debug(DBG_ERR, "malloc failed");
2109 pthread_mutex_destroy(&realm->mutex);
2113 debug(DBG_DBG, "addrealm: added realm %s", value);
2117 while (list_shift(realm->srvconfs));
2118 while (list_shift(realm->accsrvconfs));
2125 for (n = 0; servers[n]; n++)
2127 freegconfmstr(servers);
2131 for (n = 0; accservers[n]; n++)
2133 freegconfmstr(accservers);
2135 return newrealmref(realm);
2138 struct list *createsubrealmservers(struct realm *realm, struct list *srvconfs) {
2139 struct list_node *entry;
2140 struct clsrvconf *conf, *srvconf;
2141 struct list *subrealmservers = NULL;
2144 if (list_first(srvconfs)) {
2145 subrealmservers = list_create();
2146 if (!subrealmservers)
2150 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2151 conf = (struct clsrvconf *)entry->data;
2152 if (!conf->servers && conf->dynamiclookupcommand) {
2153 srvconf = malloc(sizeof(struct clsrvconf));
2155 debug(DBG_ERR, "malloc failed");
2159 if (addserver(srvconf)) {
2160 srvconf->servers->dynamiclookuparg = stringcopy(realm->name, 0);
2161 srvconf->servers->dynstartup = 1;
2162 if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
2163 debug(DBG_ERR, "pthread_create failed");
2164 freeserver(srvconf->servers, 1);
2165 srvconf->servers = NULL;
2167 pthread_detach(clientth);
2171 if (conf->servers) {
2172 if (list_push(subrealmservers, conf))
2175 debug(DBG_ERR, "malloc failed");
2178 return subrealmservers;
2181 struct realm *adddynamicrealmserver(struct realm *realm, char *id) {
2182 struct realm *newrealm = NULL;
2183 char *realmname, *s;
2185 /* create dynamic for the realm (string after last @, exit if nothing after @ */
2186 realmname = strrchr(id, '@');
2192 for (s = realmname; *s; s++)
2193 if (*s != '.' && *s != '-' && !isalnum((int)*s))
2196 if (!realm->subrealms)
2197 realm->subrealms = list_create();
2198 if (!realm->subrealms)
2201 newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, stringcopy(realm->message, 0), realm->accresp);
2203 list_destroy(realm->subrealms);
2204 realm->subrealms = NULL;
2208 newrealm->parent = newrealmref(realm);
2209 /* add server and accserver to newrealm */
2210 newrealm->srvconfs = createsubrealmservers(newrealm, realm->srvconfs);
2211 newrealm->accsrvconfs = createsubrealmservers(newrealm, realm->accsrvconfs);
2215 int dynamicconfig(struct server *server) {
2216 int ok, fd[2], status;
2218 struct clsrvconf *conf = server->conf;
2219 struct gconffile *cf = NULL;
2221 /* for now we only learn hostname/address */
2222 debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
2225 debug(DBG_ERR, "dynamicconfig: pipe error");
2230 debug(DBG_ERR, "dynamicconfig: fork error");
2234 } else if (pid == 0) {
2237 if (fd[1] != STDOUT_FILENO) {
2238 if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
2239 debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
2242 if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
2243 debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
2247 pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
2248 ok = getgenericconfig(&cf, NULL,
2249 "Server", CONF_CBK, confserver_cb, (void *)conf,
2254 if (waitpid(pid, &status, 0) < 0) {
2255 debug(DBG_ERR, "dynamicconfig: wait error");
2260 debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
2268 debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
2272 /* should accept both names and numeric values, only numeric right now */
2273 uint8_t attrname2val(char *attrname) {
2276 val = atoi(attrname);
2277 return val > 0 && val < 256 ? val : 0;
2280 /* should accept both names and numeric values, only numeric right now */
2281 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2284 *vendor = atoi(attrname);
2285 s = strchr(attrname, ':');
2290 *type = atoi(s + 1);
2294 /* should accept both names and numeric values, only numeric right now */
2295 struct tlv *extractattr(char *nameval) {
2300 s = strchr(nameval, ':');
2301 name = atoi(nameval);
2302 if (!s || name < 1 || name > 255)
2304 len = strlen(s + 1);
2307 a = malloc(sizeof(struct tlv));
2310 a->v = (uint8_t *)stringcopy(s + 1, 0);
2320 /* should accept both names and numeric values, only numeric right now */
2321 struct modattr *extractmodattr(char *nameval) {
2326 if (!strncasecmp(nameval, "User-Name:/", 11)) {
2330 s = strchr(nameval, ':');
2331 name = atoi(nameval);
2332 if (!s || name < 1 || name > 255 || s[1] != '/')
2336 /* regexp, remove optional trailing / if present */
2337 if (s[strlen(s) - 1] == '/')
2338 s[strlen(s) - 1] = '\0';
2346 m = malloc(sizeof(struct modattr));
2348 debug(DBG_ERR, "malloc failed");
2353 m->replacement = stringcopy(t, 0);
2354 if (!m->replacement) {
2356 debug(DBG_ERR, "malloc failed");
2360 m->regex = malloc(sizeof(regex_t));
2362 free(m->replacement);
2364 debug(DBG_ERR, "malloc failed");
2368 if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
2370 free(m->replacement);
2372 debug(DBG_ERR, "failed to compile regular expression %s", s);
2379 struct rewrite *getrewrite(char *alt1, char *alt2) {
2382 if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
2384 if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
2389 void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **modattrs) {
2390 struct rewrite *rewrite = NULL;
2392 uint8_t *rma = NULL;
2393 uint32_t *p, *rmva = NULL;
2394 struct list *adda = NULL, *moda = NULL;
2399 for (n = 0; rmattrs[n]; n++);
2400 rma = calloc(n + 1, sizeof(uint8_t));
2402 debugx(1, DBG_ERR, "malloc failed");
2404 for (i = 0; i < n; i++)
2405 if (!(rma[i] = attrname2val(rmattrs[i])))
2406 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", rmattrs[i]);
2407 freegconfmstr(rmattrs);
2412 for (n = 0; rmvattrs[n]; n++);
2413 rmva = calloc(2 * n + 1, sizeof(uint32_t));
2415 debugx(1, DBG_ERR, "malloc failed");
2417 for (p = rmva, i = 0; i < n; i++, p += 2)
2418 if (!vattrname2val(rmvattrs[i], p, p + 1))
2419 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", rmvattrs[i]);
2420 freegconfmstr(rmvattrs);
2425 adda = list_create();
2427 debugx(1, DBG_ERR, "malloc failed");
2428 for (i = 0; addattrs[i]; i++) {
2429 a = extractattr(addattrs[i]);
2431 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addattrs[i]);
2432 if (!list_push(adda, a))
2433 debugx(1, DBG_ERR, "malloc failed");
2435 freegconfmstr(addattrs);
2439 moda = list_create();
2441 debugx(1, DBG_ERR, "malloc failed");
2442 for (i = 0; modattrs[i]; i++) {
2443 m = extractmodattr(modattrs[i]);
2445 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", modattrs[i]);
2446 if (!list_push(moda, m))
2447 debugx(1, DBG_ERR, "malloc failed");
2449 freegconfmstr(modattrs);
2452 if (rma || rmva || adda || moda) {
2453 rewrite = malloc(sizeof(struct rewrite));
2455 debugx(1, DBG_ERR, "malloc failed");
2456 rewrite->removeattrs = rma;
2457 rewrite->removevendorattrs = rmva;
2458 rewrite->addattrs = adda;
2459 rewrite->modattrs = moda;
2462 if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
2463 debugx(1, DBG_ERR, "malloc failed");
2464 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2467 int setttlattr(struct options *opts, char *defaultattr) {
2468 char *ttlattr = opts->ttlattr ? opts->ttlattr : defaultattr;
2470 if (vattrname2val(ttlattr, opts->ttlattrtype, opts->ttlattrtype + 1) &&
2471 (opts->ttlattrtype[1] != 256 || opts->ttlattrtype[0] < 256))
2473 debug(DBG_ERR, "setttlattr: invalid TTLAttribute value %s", ttlattr);
2477 void freeclsrvconf(struct clsrvconf *conf) {
2480 freegconfmstr(conf->hostsrc);
2481 free(conf->portsrc);
2484 free(conf->matchcertattr);
2485 if (conf->certcnregex)
2486 regfree(conf->certcnregex);
2487 if (conf->certuriregex)
2488 regfree(conf->certuriregex);
2489 free(conf->confrewritein);
2490 free(conf->confrewriteout);
2491 if (conf->rewriteusername) {
2492 if (conf->rewriteusername->regex)
2493 regfree(conf->rewriteusername->regex);
2494 free(conf->rewriteusername->replacement);
2495 free(conf->rewriteusername);
2497 free(conf->dynamiclookupcommand);
2498 free(conf->rewritein);
2499 free(conf->rewriteout);
2500 if (conf->hostports)
2501 freehostports(conf->hostports);
2503 pthread_mutex_destroy(conf->lock);
2506 /* not touching ssl_ctx, clients and servers */
2510 int mergeconfstring(char **dst, char **src) {
2519 t = stringcopy(*dst, 0);
2521 debug(DBG_ERR, "malloc failed");
2529 char **mstringcopy(char **in) {
2536 for (n = 0; in[n]; n++);
2537 out = malloc((n + 1) * sizeof(char *));
2540 for (n = 0; in[n]; n++) {
2541 out[n] = stringcopy(in[n], 0);
2551 int mergeconfmstring(char ***dst, char ***src) {
2560 t = mstringcopy(*dst);
2562 debug(DBG_ERR, "malloc failed");
2570 /* assumes dst is a shallow copy */
2571 int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
2572 if (!mergeconfstring(&dst->name, &src->name) ||
2573 !mergeconfmstring(&dst->hostsrc, &src->hostsrc) ||
2574 !mergeconfstring(&dst->portsrc, &src->portsrc) ||
2575 !mergeconfstring(&dst->secret, &src->secret) ||
2576 !mergeconfstring(&dst->tls, &src->tls) ||
2577 !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
2578 !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
2579 !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
2580 !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
2583 dst->pdef = src->pdef;
2584 dst->statusserver = src->statusserver;
2585 dst->certnamecheck = src->certnamecheck;
2586 if (src->retryinterval != 255)
2587 dst->retryinterval = src->retryinterval;
2588 if (src->retrycount != 255)
2589 dst->retrycount = src->retrycount;
2593 int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2594 struct clsrvconf *conf;
2595 char *conftype = NULL, *rewriteinalias = NULL;
2596 long int dupinterval = LONG_MIN, addttl = LONG_MIN;
2598 debug(DBG_DBG, "confclient_cb called for %s", block);
2600 conf = malloc(sizeof(struct clsrvconf));
2602 debugx(1, DBG_ERR, "malloc failed");
2603 memset(conf, 0, sizeof(struct clsrvconf));
2604 conf->certnamecheck = 1;
2606 if (!getgenericconfig(cf, block,
2607 "type", CONF_STR, &conftype,
2608 "host", CONF_MSTR, &conf->hostsrc,
2609 "secret", CONF_STR, &conf->secret,
2610 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2611 "tls", CONF_STR, &conf->tls,
2612 "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
2613 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
2615 "DuplicateInterval", CONF_LINT, &dupinterval,
2616 "addTTL", CONF_LINT, &addttl,
2617 "rewrite", CONF_STR, &rewriteinalias,
2618 "rewriteIn", CONF_STR, &conf->confrewritein,
2619 "rewriteOut", CONF_STR, &conf->confrewriteout,
2620 "rewriteattribute", CONF_STR, &conf->confrewriteusername,
2623 debugx(1, DBG_ERR, "configuration error");
2625 conf->name = stringcopy(val, 0);
2626 if (conf->name && !conf->hostsrc) {
2627 conf->hostsrc = malloc(2 * sizeof(char *));
2628 if (conf->hostsrc) {
2629 conf->hostsrc[0] = stringcopy(val, 0);
2630 conf->hostsrc[1] = NULL;
2633 if (!conf->name || !conf->hostsrc || !conf->hostsrc[0])
2634 debugx(1, DBG_ERR, "malloc failed");
2637 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
2638 conf->type = protoname2int(conftype);
2639 if (conf->type == 255)
2640 debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
2642 conf->pdef = protodefs[conf->type];
2644 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2645 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
2646 conf->tlsconf = conf->tls ? tlsgettls(conf->tls, NULL) : tlsgettls("defaultclient", "default");
2648 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
2649 if (conf->matchcertattr && !addmatchcertattr(conf))
2650 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
2654 if (dupinterval != LONG_MIN) {
2655 if (dupinterval < 0 || dupinterval > 255)
2656 debugx(1, DBG_ERR, "error in block %s, value of option DuplicateInterval is %d, must be 0-255", block, dupinterval);
2657 conf->dupinterval = (uint8_t)dupinterval;
2659 conf->dupinterval = conf->pdef->duplicateintervaldefault;
2661 if (addttl != LONG_MIN) {
2662 if (addttl < 1 || addttl > 255)
2663 debugx(1, DBG_ERR, "error in block %s, value of option addTTL is %d, must be 1-255", block, addttl);
2664 conf->addttl = (uint8_t)addttl;
2667 if (!conf->confrewritein)
2668 conf->confrewritein = rewriteinalias;
2670 free(rewriteinalias);
2671 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
2672 if (conf->confrewriteout)
2673 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
2675 if (conf->confrewriteusername) {
2676 conf->rewriteusername = extractmodattr(conf->confrewriteusername);
2677 if (!conf->rewriteusername)
2678 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
2681 if (!addhostport(&conf->hostports, conf->hostsrc, conf->pdef->portdefault, 1) ||
2682 !resolvehostports(conf->hostports, conf->pdef->socktype))
2683 debugx(1, DBG_ERR, "resolve failed, exiting");
2685 if (!conf->secret) {
2686 if (!conf->pdef->secretdefault)
2687 debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
2688 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
2690 debugx(1, DBG_ERR, "malloc failed");
2693 conf->lock = malloc(sizeof(pthread_mutex_t));
2695 debugx(1, DBG_ERR, "malloc failed");
2697 pthread_mutex_init(conf->lock, NULL);
2698 if (!list_push(clconfs, conf))
2699 debugx(1, DBG_ERR, "malloc failed");
2703 int compileserverconfig(struct clsrvconf *conf, const char *block) {
2704 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2705 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
2706 conf->tlsconf = conf->tls ? tlsgettls(conf->tls, NULL) : tlsgettls("defaultserver", "default");
2707 if (!conf->tlsconf) {
2708 debug(DBG_ERR, "error in block %s, no tls context defined", block);
2711 if (conf->matchcertattr && !addmatchcertattr(conf)) {
2712 debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
2718 if (!conf->portsrc) {
2719 conf->portsrc = stringcopy(conf->pdef->portdefault, 0);
2720 if (!conf->portsrc) {
2721 debug(DBG_ERR, "malloc failed");
2726 if (conf->retryinterval == 255)
2727 conf->retryinterval = conf->pdef->retryintervaldefault;
2728 if (conf->retrycount == 255)
2729 conf->retrycount = conf->pdef->retrycountdefault;
2731 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
2732 if (conf->confrewriteout)
2733 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
2735 if (!addhostport(&conf->hostports, conf->hostsrc, conf->portsrc, 0)) {
2736 debug(DBG_ERR, "error in block %s, failed to parse %s", block, conf->hostsrc);
2740 if (!conf->dynamiclookupcommand && !resolvehostports(conf->hostports, conf->pdef->socktype)) {
2741 debug(DBG_ERR, "resolve failed, exiting");
2747 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2748 struct clsrvconf *conf, *resconf;
2749 char *conftype = NULL, *rewriteinalias = NULL;
2750 long int retryinterval = LONG_MIN, retrycount = LONG_MIN, addttl = LONG_MIN;
2752 debug(DBG_DBG, "confserver_cb called for %s", block);
2754 conf = malloc(sizeof(struct clsrvconf));
2756 debug(DBG_ERR, "malloc failed");
2759 memset(conf, 0, sizeof(struct clsrvconf));
2760 resconf = (struct clsrvconf *)arg;
2762 conf->statusserver = resconf->statusserver;
2763 conf->certnamecheck = resconf->certnamecheck;
2765 conf->certnamecheck = 1;
2767 if (!getgenericconfig(cf, block,
2768 "type", CONF_STR, &conftype,
2769 "host", CONF_MSTR, &conf->hostsrc,
2770 "port", CONF_STR, &conf->portsrc,
2771 "secret", CONF_STR, &conf->secret,
2772 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2773 "tls", CONF_STR, &conf->tls,
2774 "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
2775 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
2777 "addTTL", CONF_LINT, &addttl,
2778 "rewrite", CONF_STR, &rewriteinalias,
2779 "rewriteIn", CONF_STR, &conf->confrewritein,
2780 "rewriteOut", CONF_STR, &conf->confrewriteout,
2781 "StatusServer", CONF_BLN, &conf->statusserver,
2782 "RetryInterval", CONF_LINT, &retryinterval,
2783 "RetryCount", CONF_LINT, &retrycount,
2784 "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
2787 debug(DBG_ERR, "configuration error");
2791 conf->name = stringcopy(val, 0);
2792 if (conf->name && !conf->hostsrc) {
2793 conf->hostsrc = malloc(2 * sizeof(char *));
2794 if (conf->hostsrc) {
2795 conf->hostsrc[0] = stringcopy(val, 0);
2796 conf->hostsrc[1] = NULL;
2799 if (!conf->name || !conf->hostsrc || !conf->hostsrc[0]) {
2800 debug(DBG_ERR, "malloc failed");
2805 debug(DBG_ERR, "error in block %s, option type missing", block);
2808 conf->type = protoname2int(conftype);
2809 if (conf->type == 255) {
2810 debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
2816 conf->pdef = protodefs[conf->type];
2818 if (!conf->confrewritein)
2819 conf->confrewritein = rewriteinalias;
2821 free(rewriteinalias);
2822 rewriteinalias = NULL;
2824 if (retryinterval != LONG_MIN) {
2825 if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
2826 debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
2829 conf->retryinterval = (uint8_t)retryinterval;
2831 conf->retryinterval = 255;
2833 if (retrycount != LONG_MIN) {
2834 if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
2835 debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
2838 conf->retrycount = (uint8_t)retrycount;
2840 conf->retrycount = 255;
2842 if (addttl != LONG_MIN) {
2843 if (addttl < 1 || addttl > 255) {
2844 debug(DBG_ERR, "error in block %s, value of option addTTL is %d, must be 1-255", block, addttl);
2847 conf->addttl = (uint8_t)addttl;
2851 if (!mergesrvconf(resconf, conf))
2855 if (conf->dynamiclookupcommand) {
2856 free(conf->dynamiclookupcommand);
2857 conf->dynamiclookupcommand = NULL;
2861 if (resconf || !conf->dynamiclookupcommand) {
2862 if (!compileserverconfig(conf, block))
2866 if (!conf->secret) {
2867 if (!conf->pdef->secretdefault) {
2868 debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
2871 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
2872 if (!conf->secret) {
2873 debug(DBG_ERR, "malloc failed");
2881 if (!list_push(srvconfs, conf)) {
2882 debug(DBG_ERR, "malloc failed");
2889 free(rewriteinalias);
2890 freeclsrvconf(conf);
2894 int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2895 char **servers = NULL, **accservers = NULL, *msg = NULL;
2896 uint8_t accresp = 0;
2898 debug(DBG_DBG, "confrealm_cb called for %s", block);
2900 if (!getgenericconfig(cf, block,
2901 "server", CONF_MSTR, &servers,
2902 "accountingServer", CONF_MSTR, &accservers,
2903 "ReplyMessage", CONF_STR, &msg,
2904 "AccountingResponse", CONF_BLN, &accresp,
2907 debugx(1, DBG_ERR, "configuration error");
2909 addrealm(realms, val, servers, accservers, msg, accresp);
2913 int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2914 char **rmattrs = NULL, **rmvattrs = NULL, **addattrs = NULL, **modattrs = NULL;
2916 debug(DBG_DBG, "confrewrite_cb called for %s", block);
2918 if (!getgenericconfig(cf, block,
2919 "removeAttribute", CONF_MSTR, &rmattrs,
2920 "removeVendorAttribute", CONF_MSTR, &rmvattrs,
2921 "addAttribute", CONF_MSTR, &addattrs,
2922 "modifyAttribute", CONF_MSTR, &modattrs,
2925 debugx(1, DBG_ERR, "configuration error");
2926 addrewrite(val, rmattrs, rmvattrs, addattrs, modattrs);
2930 int setprotoopts(uint8_t type, char **listenargs, char *sourcearg) {
2931 struct commonprotoopts *protoopts;
2933 protoopts = malloc(sizeof(struct commonprotoopts));
2936 memset(protoopts, 0, sizeof(struct commonprotoopts));
2937 protoopts->listenargs = listenargs;
2938 protoopts->sourcearg = sourcearg;
2939 protodefs[type]->setprotoopts(protoopts);
2943 void getmainconfig(const char *configfile) {
2944 long int addttl = LONG_MIN, loglevel = LONG_MIN;
2945 struct gconffile *cfs;
2946 char **listenargs[RAD_PROTOCOUNT];
2947 char *sourcearg[RAD_PROTOCOUNT];
2950 cfs = openconfigfile(configfile);
2951 memset(&options, 0, sizeof(options));
2952 memset(&listenargs, 0, sizeof(listenargs));
2953 memset(&sourcearg, 0, sizeof(sourcearg));
2955 clconfs = list_create();
2957 debugx(1, DBG_ERR, "malloc failed");
2959 srvconfs = list_create();
2961 debugx(1, DBG_ERR, "malloc failed");
2963 realms = list_create();
2965 debugx(1, DBG_ERR, "malloc failed");
2967 rewriteconfs = hash_create();
2969 debugx(1, DBG_ERR, "malloc failed");
2971 if (!getgenericconfig(&cfs, NULL,
2973 "ListenUDP", CONF_MSTR, &listenargs[RAD_UDP],
2974 "SourceUDP", CONF_STR, &sourcearg[RAD_UDP],
2977 "ListenTCP", CONF_MSTR, &listenargs[RAD_TCP],
2978 "SourceTCP", CONF_STR, &sourcearg[RAD_TCP],
2981 "ListenTLS", CONF_MSTR, &listenargs[RAD_TLS],
2982 "SourceTLS", CONF_STR, &sourcearg[RAD_TLS],
2985 "ListenDTLS", CONF_MSTR, &listenargs[RAD_DTLS],
2986 "SourceDTLS", CONF_STR, &sourcearg[RAD_DTLS],
2988 "TTLAttribute", CONF_STR, &options.ttlattr,
2989 "addTTL", CONF_LINT, &addttl,
2990 "LogLevel", CONF_LINT, &loglevel,
2991 "LogDestination", CONF_STR, &options.logdestination,
2992 "LoopPrevention", CONF_BLN, &options.loopprevention,
2993 "Client", CONF_CBK, confclient_cb, NULL,
2994 "Server", CONF_CBK, confserver_cb, NULL,
2995 "Realm", CONF_CBK, confrealm_cb, NULL,
2996 #if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
2997 "TLS", CONF_CBK, conftls_cb, NULL,
2999 "Rewrite", CONF_CBK, confrewrite_cb, NULL,
3002 debugx(1, DBG_ERR, "configuration error");
3004 if (loglevel != LONG_MIN) {
3005 if (loglevel < 1 || loglevel > 4)
3006 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3 or 4", configfile, loglevel);
3007 options.loglevel = (uint8_t)loglevel;
3009 if (addttl != LONG_MIN) {
3010 if (addttl < 1 || addttl > 255)
3011 debugx(1, DBG_ERR, "error in %s, value of option addTTL is %d, must be 1-255", configfile, addttl);
3012 options.addttl = (uint8_t)addttl;
3014 if (!setttlattr(&options, DEFAULT_TTL_ATTR))
3015 debugx(1, DBG_ERR, "Failed to set TTLAttribute, exiting");
3017 for (i = 0; i < RAD_PROTOCOUNT; i++)
3018 if (listenargs[i] || sourcearg[i])
3019 setprotoopts(i, listenargs[i], sourcearg[i]);
3022 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile, char **pidfile) {
3025 while ((c = getopt(argc, argv, "c:d:i:fpv")) != -1) {
3028 *configfile = optarg;
3031 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3032 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3033 *loglevel = *optarg - '0';
3045 debug(DBG_ERR, "radsecproxy revision $Rev$");
3046 debug(DBG_ERR, "This binary was built with support for the following transports:");
3048 debug(DBG_ERR, " UDP");
3051 debug(DBG_ERR, " TCP");
3054 debug(DBG_ERR, " TLS");
3057 debug(DBG_ERR, " DTLS");
3064 if (!(argc - optind))
3068 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -i pidfile ] [ -p ] [ -v ]", argv[0]);
3072 int daemon(int a, int b) {
3080 for (i = 0; i < 3; i++) {
3082 open("/dev/null", O_RDWR);
3088 void *sighandler(void *arg) {
3093 sigemptyset(&sigset);
3094 sigaddset(&sigset, SIGHUP);
3095 sigaddset(&sigset, SIGPIPE);
3096 sigwait(&sigset, &sig);
3099 /* completely ignoring this */
3102 debug(DBG_INFO, "sighandler: got SIGHUP");
3106 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3109 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3114 int createpidfile(const char *pidfile) {
3116 FILE *f = fopen(pidfile, "w");
3118 r = fprintf(f, "%d\n", getpid());
3119 return f && !fclose(f) && r >= 0;
3122 int main(int argc, char **argv) {
3125 struct list_node *entry;
3126 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3127 char *configfile = NULL, *pidfile = NULL;
3128 struct clsrvconf *srvconf;
3131 debug_init("radsecproxy");
3132 debug_set_level(DEBUG_LEVEL);
3134 for (i = 0; i < RAD_PROTOCOUNT; i++)
3135 protodefs[i] = protoinits[i](i);
3137 /* needed even if no TLS/DTLS transport */
3140 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile, &pidfile);
3142 debug_set_level(loglevel);
3143 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3145 options.loglevel = loglevel;
3146 else if (options.loglevel)
3147 debug_set_level(options.loglevel);
3149 debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
3150 free(options.logdestination);
3152 if (!list_first(clconfs))
3153 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3154 if (!list_first(realms))
3155 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3158 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3160 if (!foreground && (daemon(0, 0) < 0))
3161 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3163 debug_timestamp_on();
3164 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3165 if (pidfile && !createpidfile(pidfile))
3166 debugx(1, DBG_ERR, "failed to create pidfile %s: %s", pidfile, strerror(errno));
3168 sigemptyset(&sigset);
3169 /* exit on all but SIGHUP|SIGPIPE, ignore more? */
3170 sigaddset(&sigset, SIGHUP);
3171 sigaddset(&sigset, SIGPIPE);
3172 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3173 pthread_create(&sigth, NULL, sighandler, NULL);
3175 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3176 srvconf = (struct clsrvconf *)entry->data;
3177 if (srvconf->dynamiclookupcommand)
3179 if (!addserver(srvconf))
3180 debugx(1, DBG_ERR, "failed to add server");
3181 if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
3182 (void *)(srvconf->servers)))
3183 debugx(1, DBG_ERR, "pthread_create failed");
3186 for (i = 0; i < RAD_PROTOCOUNT; i++) {
3189 if (protodefs[i]->initextra)
3190 protodefs[i]->initextra();
3191 if (find_clconf_type(i, NULL))
3195 /* just hang around doing nothing, anything to do here? */