2 * Copyright (C) 2006, 2007 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 /* For UDP there is one server instance consisting of udpserverrd and udpserverth
10 * rd is responsible for init and launching wr
11 * For TLS there is a server instance that launches tlsserverrd for each TLS peer
12 * each tlsserverrd launches tlsserverwr
13 * For each UDP/TLS peer there is clientrd and clientwr, clientwr is responsible
14 * for init and launching rd
16 * serverrd will receive a request, processes it and puts it in the requestq of
17 * the appropriate clientwr
18 * clientwr monitors its requestq and sends requests
19 * clientrd looks for responses, processes them and puts them in the replyq of
20 * the peer the request came from
21 * serverwr monitors its reply and sends replies
23 * In addition to the main thread, we have:
24 * If UDP peers are configured, there will be 2 + 2 * #peers UDP threads
25 * If TLS peers are configured, there will initially be 2 * #peers TLS threads
26 * For each TLS peer connecting to us there will be 2 more TLS threads
27 * This is only for connected peers
28 * Example: With 3 UDP peer and 30 TLS peers, there will be a max of
29 * 1 + (2 + 2 * 3) + (2 * 30) + (2 * 30) = 129 threads
32 #include <sys/socket.h>
33 #include <netinet/in.h>
41 #include <openssl/ssl.h>
42 #include <openssl/rand.h>
43 #include <openssl/err.h>
44 #include <openssl/md5.h>
45 #include <openssl/hmac.h>
47 #include "radsecproxy.h"
49 static struct options options;
50 static struct client *clients = NULL;
51 static struct server *servers = NULL;
52 static struct realm *realms = NULL;
54 static int client_udp_count = 0;
55 static int client_tls_count = 0;
56 static int client_count = 0;
57 static int server_udp_count = 0;
58 static int server_tls_count = 0;
59 static int server_count = 0;
60 static int realm_count = 0;
62 static struct peer *tcp_server_listen;
63 static struct peer *udp_server_listen;
64 static struct replyq udp_server_replyq;
65 static int udp_server_sock = -1;
66 static pthread_mutex_t *ssl_locks;
67 static long *ssl_lock_count;
68 static SSL_CTX *ssl_ctx = NULL;
72 /* callbacks for making OpenSSL thread safe */
73 unsigned long ssl_thread_id() {
74 return (unsigned long)pthread_self();
77 void ssl_locking_callback(int mode, int type, const char *file, int line) {
78 if (mode & CRYPTO_LOCK) {
79 pthread_mutex_lock(&ssl_locks[type]);
80 ssl_lock_count[type]++;
82 pthread_mutex_unlock(&ssl_locks[type]);
85 static int pem_passwd_cb(char *buf, int size, int rwflag, void *userdata) {
86 int pwdlen = strlen(userdata);
87 if (rwflag != 0 || pwdlen > size) /* not for decryption or too large */
89 memcpy(buf, userdata, pwdlen);
93 static int verify_cb(int ok, X509_STORE_CTX *ctx) {
98 err_cert = X509_STORE_CTX_get_current_cert(ctx);
99 err = X509_STORE_CTX_get_error(ctx);
100 depth = X509_STORE_CTX_get_error_depth(ctx);
102 if (depth > MAX_CERT_DEPTH) {
104 err = X509_V_ERR_CERT_CHAIN_TOO_LONG;
105 X509_STORE_CTX_set_error(ctx, err);
109 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
110 debug(DBG_WARN, "verify error: num=%d:%s:depth=%d:%s", err, X509_verify_cert_error_string(err), depth, buf);
113 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
114 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf, 256);
115 debug(DBG_WARN, "\tIssuer=%s", buf);
117 case X509_V_ERR_CERT_NOT_YET_VALID:
118 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
119 debug(DBG_WARN, "\tCertificate not yet valid");
121 case X509_V_ERR_CERT_HAS_EXPIRED:
122 debug(DBG_WARN, "Certificate has expired");
124 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
125 debug(DBG_WARN, "Certificate no longer valid (after notAfter)");
130 printf("certificate verify returns %d\n", ok);
135 SSL_CTX *ssl_init() {
140 if (!options.tlscertificatefile || !options.tlscertificatekeyfile)
141 debugx(1, DBG_ERR, "TLSCertificateFile and TLSCertificateKeyFile must be specified for TLS");
143 if (!options.tlscacertificatefile && !options.tlscacertificatepath)
144 debugx(1, DBG_ERR, "CA Certificate file/path need to be configured");
146 ssl_locks = malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
147 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
148 for (i = 0; i < CRYPTO_num_locks(); i++) {
149 ssl_lock_count[i] = 0;
150 pthread_mutex_init(&ssl_locks[i], NULL);
152 CRYPTO_set_id_callback(ssl_thread_id);
153 CRYPTO_set_locking_callback(ssl_locking_callback);
155 SSL_load_error_strings();
158 while (!RAND_status()) {
159 time_t t = time(NULL);
160 pid_t pid = getpid();
161 RAND_seed((unsigned char *)&t, sizeof(time_t));
162 RAND_seed((unsigned char *)&pid, sizeof(pid));
165 ctx = SSL_CTX_new(TLSv1_method());
166 if (options.tlscertificatekeypassword) {
167 SSL_CTX_set_default_passwd_cb_userdata(ctx, options.tlscertificatekeypassword);
168 SSL_CTX_set_default_passwd_cb(ctx, pem_passwd_cb);
170 if (SSL_CTX_use_certificate_chain_file(ctx, options.tlscertificatefile) &&
171 SSL_CTX_use_PrivateKey_file(ctx, options.tlscertificatekeyfile, SSL_FILETYPE_PEM) &&
172 SSL_CTX_check_private_key(ctx) &&
173 SSL_CTX_load_verify_locations(ctx, options.tlscacertificatefile, options.tlscacertificatepath)) {
174 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
175 SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
179 while ((error = ERR_get_error()))
180 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
181 debug(DBG_ERR, "Error initialising SSL/TLS");
186 void printauth(char *s, unsigned char *t) {
189 for (i = 0; i < 16; i++)
190 printf("%02x ", t[i]);
195 int resolvepeer(struct peer *peer, int ai_flags) {
196 struct addrinfo hints, *addrinfo;
198 memset(&hints, 0, sizeof(hints));
199 hints.ai_socktype = (peer->type == 'T' ? SOCK_STREAM : SOCK_DGRAM);
200 hints.ai_family = AF_UNSPEC;
201 hints.ai_flags = ai_flags;
202 if (getaddrinfo(peer->host, peer->port, &hints, &addrinfo)) {
203 debug(DBG_WARN, "resolvepeer: can't resolve %s port %s", peer->host, peer->port);
208 freeaddrinfo(peer->addrinfo);
209 peer->addrinfo = addrinfo;
213 int connecttoserver(struct addrinfo *addrinfo) {
215 struct addrinfo *res;
218 for (res = addrinfo; res; res = res->ai_next) {
219 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
221 debug(DBG_WARN, "connecttoserver: socket failed");
224 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
226 debug(DBG_WARN, "connecttoserver: connect failed");
233 int bindtoaddr(struct addrinfo *addrinfo) {
235 struct addrinfo *res;
237 for (res = addrinfo; res; res = res->ai_next) {
238 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
240 debug(DBG_WARN, "bindtoaddr: socket failed");
243 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
244 if (!bind(s, res->ai_addr, res->ai_addrlen))
246 debug(DBG_WARN, "bindtoaddr: bind failed");
252 /* returns the client with matching address, or NULL */
253 /* if client argument is not NULL, we only check that one client */
254 struct client *find_client(char type, struct sockaddr *addr, struct client *client) {
255 struct sockaddr_in6 *sa6 = NULL;
256 struct in_addr *a4 = NULL;
259 struct addrinfo *res;
261 if (addr->sa_family == AF_INET6) {
262 sa6 = (struct sockaddr_in6 *)addr;
263 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr))
264 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
266 a4 = &((struct sockaddr_in *)addr)->sin_addr;
268 c = (client ? client : clients);
269 for (i = 0; i < client_count; i++) {
270 if (c->peer.type == type)
271 for (res = c->peer.addrinfo; res; res = res->ai_next)
272 if ((a4 && res->ai_family == AF_INET &&
273 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
274 (res->ai_family == AF_INET6 &&
275 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16)))
284 /* returns the server with matching address, or NULL */
285 /* if server argument is not NULL, we only check that one server */
286 struct server *find_server(char type, struct sockaddr *addr, struct server *server) {
287 struct sockaddr_in6 *sa6 = NULL;
288 struct in_addr *a4 = NULL;
291 struct addrinfo *res;
293 if (addr->sa_family == AF_INET6) {
294 sa6 = (struct sockaddr_in6 *)addr;
295 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr))
296 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
298 a4 = &((struct sockaddr_in *)addr)->sin_addr;
300 s = (server ? server : servers);
301 for (i = 0; i < server_count; i++) {
302 if (s->peer.type == type)
303 for (res = s->peer.addrinfo; res; res = res->ai_next)
304 if ((a4 && res->ai_family == AF_INET &&
305 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
306 (res->ai_family == AF_INET6 &&
307 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16)))
316 /* exactly one of client and server must be non-NULL */
317 /* if *peer == NULL we return who we received from, else require it to be from peer */
318 /* return from in sa if not NULL */
319 unsigned char *radudpget(int s, struct client **client, struct server **server, struct sockaddr_storage *sa) {
322 unsigned char buf[65536], *rad;
323 struct sockaddr_storage from;
324 socklen_t fromlen = sizeof(from);
327 cnt = recvfrom(s, buf, sizeof(buf), 0, (struct sockaddr *)&from, &fromlen);
329 debug(DBG_WARN, "radudpget: recv failed");
332 debug(DBG_DBG, "radudpget: got %d bytes from %s", cnt, addr2string((struct sockaddr *)&from, fromlen));
335 debug(DBG_WARN, "radudpget: packet too small");
341 debug(DBG_WARN, "radudpget: length too small");
346 debug(DBG_WARN, "radudpget: packet smaller than length field in radius header");
350 debug(DBG_DBG, "radudpget: packet was padded with %d bytes", cnt - len);
353 ? (void *)find_client('U', (struct sockaddr *)&from, *client)
354 : (void *)find_server('U', (struct sockaddr *)&from, *server));
356 debug(DBG_WARN, "radudpget: got packet from wrong or unknown UDP peer, ignoring");
363 debug(DBG_ERR, "radudpget: malloc failed");
365 memcpy(rad, buf, len);
367 *client = (struct client *)f; /* only need this if *client == NULL, but if not NULL *client == f here */
369 *server = (struct server *)f; /* only need this if *server == NULL, but if not NULL *server == f here */
375 int tlsverifycert(struct peer *peer) {
383 if (SSL_get_verify_result(peer->ssl) != X509_V_OK) {
384 debug(DBG_ERR, "tlsverifycert: basic validation failed");
385 while ((error = ERR_get_error()))
386 debug(DBG_ERR, "tlsverifycert: TLS: %s", ERR_error_string(error, NULL));
390 cert = SSL_get_peer_certificate(peer->ssl);
392 debug(DBG_ERR, "tlsverifycert: failed to obtain certificate");
395 nm = X509_get_subject_name(cert);
398 loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
401 e = X509_NAME_get_entry(nm, loc);
402 l = ASN1_STRING_to_UTF8(&v, X509_NAME_ENTRY_get_data(e));
409 for (i = 0; i < l; i++)
414 if (l == strlen(peer->host) && !strncasecmp(peer->host, (char *)v, l)) {
415 debug(DBG_DBG, "tlsverifycert: Found cn matching host %s, All OK", peer->host);
418 debug(DBG_ERR, "tlsverifycert: cn not matching host %s", peer->host);
424 void tlsconnect(struct server *server, struct timeval *when, char *text) {
428 debug(DBG_DBG, "tlsconnect called from %s", text);
429 pthread_mutex_lock(&server->lock);
430 if (when && memcmp(&server->lastconnecttry, when, sizeof(struct timeval))) {
431 /* already reconnected, nothing to do */
432 debug(DBG_DBG, "tlsconnect(%s): seems already reconnected", text);
433 pthread_mutex_unlock(&server->lock);
437 debug(DBG_DBG, "tlsconnect %s", text);
440 gettimeofday(&now, NULL);
441 elapsed = now.tv_sec - server->lastconnecttry.tv_sec;
442 if (server->connectionok) {
443 server->connectionok = 0;
445 } else if (elapsed < 5)
447 else if (elapsed < 300) {
448 debug(DBG_INFO, "tlsconnect: sleeping %lds", elapsed);
450 } else if (elapsed < 100000) {
451 debug(DBG_INFO, "tlsconnect: sleeping %ds", 600);
454 server->lastconnecttry.tv_sec = now.tv_sec; /* no sleep at startup */
455 debug(DBG_WARN, "tlsconnect: trying to open TLS connection to %s port %s", server->peer.host, server->peer.port);
456 if (server->sock >= 0)
458 if ((server->sock = connecttoserver(server->peer.addrinfo)) < 0) {
459 debug(DBG_ERR, "tlsconnect: connecttoserver failed");
463 SSL_free(server->peer.ssl);
464 server->peer.ssl = SSL_new(ssl_ctx);
465 SSL_set_fd(server->peer.ssl, server->sock);
466 if (SSL_connect(server->peer.ssl) > 0 && tlsverifycert(&server->peer))
469 debug(DBG_WARN, "tlsconnect: TLS connection to %s port %s up", server->peer.host, server->peer.port);
470 gettimeofday(&server->lastconnecttry, NULL);
471 pthread_mutex_unlock(&server->lock);
474 unsigned char *radtlsget(SSL *ssl) {
476 unsigned char buf[4], *rad;
479 for (total = 0; total < 4; total += cnt) {
480 cnt = SSL_read(ssl, buf + total, 4 - total);
482 debug(DBG_ERR, "radtlsget: connection lost");
483 if (SSL_get_error(ssl, cnt) == SSL_ERROR_ZERO_RETURN) {
484 /* remote end sent close_notify, send one back */
494 debug(DBG_ERR, "radtlsget: malloc failed");
499 for (; total < len; total += cnt) {
500 cnt = SSL_read(ssl, rad + total, len - total);
502 debug(DBG_ERR, "radtlsget: connection lost");
503 if (SSL_get_error(ssl, cnt) == SSL_ERROR_ZERO_RETURN) {
504 /* remote end sent close_notify, send one back */
516 debug(DBG_WARN, "radtlsget: packet smaller than minimum radius size");
519 debug(DBG_DBG, "radtlsget: got %d bytes", total);
523 int clientradput(struct server *server, unsigned char *rad) {
527 struct timeval lastconnecttry;
530 if (server->peer.type == 'U') {
531 if (send(server->sock, rad, len, 0) >= 0) {
532 debug(DBG_DBG, "clienradput: sent UDP of length %d to %s port %s", len, server->peer.host, server->peer.port);
535 debug(DBG_WARN, "clientradput: send failed");
539 lastconnecttry = server->lastconnecttry;
540 while ((cnt = SSL_write(server->peer.ssl, rad, len)) <= 0) {
541 while ((error = ERR_get_error()))
542 debug(DBG_ERR, "clientradput: TLS: %s", ERR_error_string(error, NULL));
543 tlsconnect(server, &lastconnecttry, "clientradput");
544 lastconnecttry = server->lastconnecttry;
547 server->connectionok = 1;
548 debug(DBG_DBG, "clientradput: Sent %d bytes, Radius packet of length %d to TLS peer %s",
549 cnt, len, server->peer.host);
553 int radsign(unsigned char *rad, unsigned char *sec) {
554 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
555 static unsigned char first = 1;
556 static EVP_MD_CTX mdctx;
560 pthread_mutex_lock(&lock);
562 EVP_MD_CTX_init(&mdctx);
566 result = (EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) &&
567 EVP_DigestUpdate(&mdctx, rad, RADLEN(rad)) &&
568 EVP_DigestUpdate(&mdctx, sec, strlen((char *)sec)) &&
569 EVP_DigestFinal_ex(&mdctx, rad + 4, &md_len) &&
571 pthread_mutex_unlock(&lock);
575 int validauth(unsigned char *rad, unsigned char *reqauth, unsigned char *sec) {
576 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
577 static unsigned char first = 1;
578 static EVP_MD_CTX mdctx;
579 unsigned char hash[EVP_MAX_MD_SIZE];
583 pthread_mutex_lock(&lock);
585 EVP_MD_CTX_init(&mdctx);
591 result = (EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) &&
592 EVP_DigestUpdate(&mdctx, rad, 4) &&
593 EVP_DigestUpdate(&mdctx, reqauth, 16) &&
594 (len <= 20 || EVP_DigestUpdate(&mdctx, rad + 20, len - 20)) &&
595 EVP_DigestUpdate(&mdctx, sec, strlen((char *)sec)) &&
596 EVP_DigestFinal_ex(&mdctx, hash, &len) &&
598 !memcmp(hash, rad + 4, 16));
599 pthread_mutex_unlock(&lock);
603 int checkmessageauth(unsigned char *rad, uint8_t *authattr, char *secret) {
604 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
605 static unsigned char first = 1;
606 static HMAC_CTX hmacctx;
608 uint8_t auth[16], hash[EVP_MAX_MD_SIZE];
610 pthread_mutex_lock(&lock);
612 HMAC_CTX_init(&hmacctx);
616 memcpy(auth, authattr, 16);
617 memset(authattr, 0, 16);
619 HMAC_Init_ex(&hmacctx, secret, strlen(secret), EVP_md5(), NULL);
620 HMAC_Update(&hmacctx, rad, RADLEN(rad));
621 HMAC_Final(&hmacctx, hash, &md_len);
622 memcpy(authattr, auth, 16);
624 debug(DBG_WARN, "message auth computation failed");
625 pthread_mutex_unlock(&lock);
629 if (memcmp(auth, hash, 16)) {
630 debug(DBG_WARN, "message authenticator, wrong value");
631 pthread_mutex_unlock(&lock);
635 pthread_mutex_unlock(&lock);
639 int createmessageauth(unsigned char *rad, unsigned char *authattrval, char *secret) {
640 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
641 static unsigned char first = 1;
642 static HMAC_CTX hmacctx;
648 pthread_mutex_lock(&lock);
650 HMAC_CTX_init(&hmacctx);
654 memset(authattrval, 0, 16);
656 HMAC_Init_ex(&hmacctx, secret, strlen(secret), EVP_md5(), NULL);
657 HMAC_Update(&hmacctx, rad, RADLEN(rad));
658 HMAC_Final(&hmacctx, authattrval, &md_len);
660 debug(DBG_WARN, "message auth computation failed");
661 pthread_mutex_unlock(&lock);
665 pthread_mutex_unlock(&lock);
669 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
671 if (ATTRTYPE(attrs) == type)
673 length -= ATTRLEN(attrs);
674 attrs += ATTRLEN(attrs);
679 void sendrq(struct server *to, struct request *rq) {
683 pthread_mutex_lock(&to->newrq_mutex);
684 /* might simplify if only try nextid, might be ok */
685 for (i = to->nextid; i < MAX_REQUESTS; i++)
686 if (!to->requests[i].buf)
688 if (i == MAX_REQUESTS) {
689 for (i = 0; i < to->nextid; i++)
690 if (!to->requests[i].buf)
692 if (i == to->nextid) {
693 debug(DBG_WARN, "No room in queue, dropping request");
695 pthread_mutex_unlock(&to->newrq_mutex);
700 rq->buf[1] = (char)i;
702 attr = attrget(rq->buf + 20, RADLEN(rq->buf) - 20, RAD_Attr_Message_Authenticator);
703 if (attr && !createmessageauth(rq->buf, ATTRVAL(attr), to->peer.secret)) {
705 pthread_mutex_unlock(&to->newrq_mutex);
709 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->peer.host);
710 to->requests[i] = *rq;
715 debug(DBG_DBG, "signalling client writer");
716 pthread_cond_signal(&to->newrq_cond);
718 pthread_mutex_unlock(&to->newrq_mutex);
721 void sendreply(struct client *to, unsigned char *buf, struct sockaddr_storage *tosa) {
722 struct replyq *replyq = to->replyq;
724 if (!radsign(buf, (unsigned char *)to->peer.secret)) {
726 debug(DBG_WARN, "sendreply: failed to sign message");
730 pthread_mutex_lock(&replyq->count_mutex);
731 if (replyq->count == replyq->size) {
732 debug(DBG_WARN, "No room in queue, dropping request");
733 pthread_mutex_unlock(&replyq->count_mutex);
738 replyq->replies[replyq->count].buf = buf;
740 replyq->replies[replyq->count].tosa = *tosa;
743 if (replyq->count == 1) {
744 debug(DBG_DBG, "signalling server writer");
745 pthread_cond_signal(&replyq->count_cond);
747 pthread_mutex_unlock(&replyq->count_mutex);
750 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
751 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
752 static unsigned char first = 1;
753 static EVP_MD_CTX mdctx;
754 unsigned char hash[EVP_MAX_MD_SIZE], *input;
756 uint8_t i, offset = 0, out[128];
758 pthread_mutex_lock(&lock);
760 EVP_MD_CTX_init(&mdctx);
766 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
767 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
768 !EVP_DigestUpdate(&mdctx, input, 16) ||
769 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
771 pthread_mutex_unlock(&lock);
774 for (i = 0; i < 16; i++)
775 out[offset + i] = hash[i] ^ in[offset + i];
776 input = out + offset - 16;
781 memcpy(in, out, len);
782 pthread_mutex_unlock(&lock);
786 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
787 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
788 static unsigned char first = 1;
789 static EVP_MD_CTX mdctx;
790 unsigned char hash[EVP_MAX_MD_SIZE], *input;
792 uint8_t i, offset = 0, out[128];
794 pthread_mutex_lock(&lock);
796 EVP_MD_CTX_init(&mdctx);
802 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
803 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
804 !EVP_DigestUpdate(&mdctx, input, 16) ||
805 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
807 pthread_mutex_unlock(&lock);
810 for (i = 0; i < 16; i++)
811 out[offset + i] = hash[i] ^ in[offset + i];
817 memcpy(in, out, len);
818 pthread_mutex_unlock(&lock);
822 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
823 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
824 static unsigned char first = 1;
825 static EVP_MD_CTX mdctx;
826 unsigned char hash[EVP_MAX_MD_SIZE];
830 pthread_mutex_lock(&lock);
832 EVP_MD_CTX_init(&mdctx);
837 printf("msppencrypt auth in: ");
838 for (i = 0; i < 16; i++)
839 printf("%02x ", auth[i]);
842 printf("msppencrypt salt in: ");
843 for (i = 0; i < 2; i++)
844 printf("%02x ", salt[i]);
847 printf("msppencrypt in: ");
848 for (i = 0; i < len; i++)
849 printf("%02x ", text[i]);
853 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
854 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
855 !EVP_DigestUpdate(&mdctx, auth, 16) ||
856 !EVP_DigestUpdate(&mdctx, salt, 2) ||
857 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
858 pthread_mutex_unlock(&lock);
863 printf("msppencrypt hash: ");
864 for (i = 0; i < 16; i++)
865 printf("%02x ", hash[i]);
869 for (i = 0; i < 16; i++)
872 for (offset = 16; offset < len; offset += 16) {
874 printf("text + offset - 16 c(%d): ", offset / 16);
875 for (i = 0; i < 16; i++)
876 printf("%02x ", (text + offset - 16)[i]);
879 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
880 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
881 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
882 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
884 pthread_mutex_unlock(&lock);
888 printf("msppencrypt hash: ");
889 for (i = 0; i < 16; i++)
890 printf("%02x ", hash[i]);
894 for (i = 0; i < 16; i++)
895 text[offset + i] ^= hash[i];
899 printf("msppencrypt out: ");
900 for (i = 0; i < len; i++)
901 printf("%02x ", text[i]);
905 pthread_mutex_unlock(&lock);
909 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
910 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
911 static unsigned char first = 1;
912 static EVP_MD_CTX mdctx;
913 unsigned char hash[EVP_MAX_MD_SIZE];
918 pthread_mutex_lock(&lock);
920 EVP_MD_CTX_init(&mdctx);
925 printf("msppdecrypt auth in: ");
926 for (i = 0; i < 16; i++)
927 printf("%02x ", auth[i]);
930 printf("msppedecrypt salt in: ");
931 for (i = 0; i < 2; i++)
932 printf("%02x ", salt[i]);
935 printf("msppedecrypt in: ");
936 for (i = 0; i < len; i++)
937 printf("%02x ", text[i]);
941 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
942 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
943 !EVP_DigestUpdate(&mdctx, auth, 16) ||
944 !EVP_DigestUpdate(&mdctx, salt, 2) ||
945 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
946 pthread_mutex_unlock(&lock);
951 printf("msppedecrypt hash: ");
952 for (i = 0; i < 16; i++)
953 printf("%02x ", hash[i]);
957 for (i = 0; i < 16; i++)
958 plain[i] = text[i] ^ hash[i];
960 for (offset = 16; offset < len; offset += 16) {
962 printf("text + offset - 16 c(%d): ", offset / 16);
963 for (i = 0; i < 16; i++)
964 printf("%02x ", (text + offset - 16)[i]);
967 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
968 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
969 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
970 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
972 pthread_mutex_unlock(&lock);
976 printf("msppedecrypt hash: ");
977 for (i = 0; i < 16; i++)
978 printf("%02x ", hash[i]);
982 for (i = 0; i < 16; i++)
983 plain[offset + i] = text[offset + i] ^ hash[i];
986 memcpy(text, plain, len);
988 printf("msppedecrypt out: ");
989 for (i = 0; i < len; i++)
990 printf("%02x ", text[i]);
994 pthread_mutex_unlock(&lock);
998 struct server *id2server(char *id, uint8_t len) {
1000 for (i = 0; i < realm_count; i++)
1001 if (!regexec(&realms[i].regex, id, 0, NULL, 0)) {
1002 debug(DBG_DBG, "found matching realm: %s, host %s", realms[i].name, realms[i].server->peer.host);
1003 return realms[i].server;
1008 int rqinqueue(struct server *to, struct client *from, uint8_t id) {
1011 pthread_mutex_lock(&to->newrq_mutex);
1012 for (i = 0; i < MAX_REQUESTS; i++)
1013 if (to->requests[i].buf && to->requests[i].origid == id && to->requests[i].from == from)
1015 pthread_mutex_unlock(&to->newrq_mutex);
1017 return i < MAX_REQUESTS;
1020 int attrvalidate(unsigned char *attrs, int length) {
1021 while (length > 1) {
1022 if (ATTRLEN(attrs) < 2) {
1023 debug(DBG_WARN, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
1026 length -= ATTRLEN(attrs);
1028 debug(DBG_WARN, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
1031 attrs += ATTRLEN(attrs);
1034 debug(DBG_WARN, "attrvalidate: malformed packet? remaining byte after last attribute");
1038 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1042 if (len < 16 || len > 128 || len % 16) {
1043 debug(DBG_WARN, "pwdrecrypt: invalid password length");
1047 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
1048 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
1052 printf("pwdrecrypt: password: ");
1053 for (i = 0; i < len; i++)
1054 printf("%02x ", pwd[i]);
1057 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
1058 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
1064 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, unsigned char *oldauth, char *newauth) {
1067 if (!msmppdecrypt(msmpp + 2, len - 2, (unsigned char *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
1068 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
1071 if (!msmppencrypt(msmpp + 2, len - 2, (unsigned char *)newsecret, strlen(newsecret), (unsigned char *)newauth, msmpp)) {
1072 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
1078 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
1079 char *oldsecret, char *newsecret) {
1080 unsigned char *attr;
1082 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
1083 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
1084 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->origauth))
1090 void respondstatusserver(struct request *rq) {
1091 unsigned char *resp;
1095 debug(DBG_ERR, "respondstatusserver: malloc failed");
1098 memcpy(resp, rq->buf, 20);
1099 resp[0] = RAD_Access_Accept;
1102 debug(DBG_DBG, "respondstatusserver: responding to %s", rq->from->peer.host);
1103 sendreply(rq->from, resp, rq->from->peer.type == 'U' ? &rq->fromsa : NULL);
1106 void radsrv(struct request *rq) {
1107 uint8_t code, id, *auth, *attrs, *attr;
1109 struct server *to = NULL;
1111 unsigned char *buf, newauth[16];
1114 code = *(uint8_t *)buf;
1115 id = *(uint8_t *)(buf + 1);
1117 auth = (uint8_t *)(buf + 4);
1119 debug(DBG_DBG, "radsrv: code %d, id %d, length %d", code, id, len);
1121 if (code != RAD_Access_Request && code != RAD_Status_Server) {
1122 debug(DBG_INFO, "radsrv: server currently accepts only access-requests and status-server, ignoring");
1130 if (!attrvalidate(attrs, len)) {
1131 debug(DBG_WARN, "radsrv: attribute validation failed, ignoring packet");
1136 if (code == RAD_Access_Request) {
1137 attr = attrget(attrs, len, RAD_Attr_User_Name);
1139 debug(DBG_WARN, "radsrv: ignoring request, no username attribute");
1143 memcpy(username, ATTRVAL(attr), ATTRVALLEN(attr));
1144 username[ATTRVALLEN(attr)] = '\0';
1145 debug(DBG_DBG, "Access Request with username: %s", username);
1147 to = id2server(username, strlen(username));
1149 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1154 if (rqinqueue(to, rq->from, id)) {
1155 debug(DBG_INFO, "radsrv: already got request from host %s with id %d, ignoring", rq->from->peer.host, id);
1161 attr = attrget(attrs, len, RAD_Attr_Message_Authenticator);
1162 if (attr && (ATTRVALLEN(attr) != 16 || !checkmessageauth(buf, ATTRVAL(attr), rq->from->peer.secret))) {
1163 debug(DBG_WARN, "radsrv: message authentication failed");
1168 if (code == RAD_Status_Server) {
1169 respondstatusserver(rq);
1173 if (!RAND_bytes(newauth, 16)) {
1174 debug(DBG_WARN, "radsrv: failed to generate random auth");
1180 printauth("auth", auth);
1183 attr = attrget(attrs, len, RAD_Attr_User_Password);
1185 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", ATTRVALLEN(attr));
1186 if (!pwdrecrypt(ATTRVAL(attr), ATTRVALLEN(attr), rq->from->peer.secret, to->peer.secret, auth, newauth)) {
1192 attr = attrget(attrs, len, RAD_Attr_Tunnel_Password);
1194 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", ATTRVALLEN(attr));
1195 if (!pwdrecrypt(ATTRVAL(attr), ATTRVALLEN(attr), rq->from->peer.secret, to->peer.secret, auth, newauth)) {
1202 memcpy(rq->origauth, auth, 16);
1203 memcpy(auth, newauth, 16);
1207 void *clientrd(void *arg) {
1208 struct server *server = (struct server *)arg;
1209 struct client *from;
1211 unsigned char *buf, *messageauth, *subattrs, *attrs, *attr;
1212 struct sockaddr_storage fromsa;
1213 struct timeval lastconnecttry;
1217 lastconnecttry = server->lastconnecttry;
1218 buf = (server->peer.type == 'U' ? radudpget(server->sock, NULL, &server, NULL) : radtlsget(server->peer.ssl));
1219 if (!buf && server->peer.type == 'T') {
1220 tlsconnect(server, &lastconnecttry, "clientrd");
1224 server->connectionok = 1;
1226 i = buf[1]; /* i is the id */
1229 case RAD_Access_Accept:
1230 debug(DBG_DBG, "got Access Accept with id %d", i);
1232 case RAD_Access_Reject:
1233 debug(DBG_DBG, "got Access Reject with id %d", i);
1235 case RAD_Access_Challenge:
1236 debug(DBG_DBG, "got Access Challenge with id %d", i);
1240 debug(DBG_INFO, "clientrd: discarding, only accept access accept, access reject and access challenge messages");
1244 pthread_mutex_lock(&server->newrq_mutex);
1245 if (!server->requests[i].buf || !server->requests[i].tries) {
1246 pthread_mutex_unlock(&server->newrq_mutex);
1248 debug(DBG_INFO, "clientrd: no matching request sent with this id, ignoring");
1252 if (server->requests[i].received) {
1253 pthread_mutex_unlock(&server->newrq_mutex);
1255 debug(DBG_INFO, "clientrd: already received, ignoring");
1259 if (!validauth(buf, server->requests[i].buf + 4, (unsigned char *)server->peer.secret)) {
1260 pthread_mutex_unlock(&server->newrq_mutex);
1262 debug(DBG_WARN, "clientrd: invalid auth, ignoring");
1266 from = server->requests[i].from;
1267 len = RADLEN(buf) - 20;
1270 if (!attrvalidate(attrs, len)) {
1271 pthread_mutex_unlock(&server->newrq_mutex);
1273 debug(DBG_WARN, "clientrd: attribute validation failed, ignoring packet");
1277 /* Message Authenticator */
1278 messageauth = attrget(attrs, len, RAD_Attr_Message_Authenticator);
1280 if (ATTRVALLEN(messageauth) != 16) {
1281 pthread_mutex_unlock(&server->newrq_mutex);
1283 debug(DBG_WARN, "clientrd: illegal message auth attribute length, ignoring packet");
1286 memcpy(tmp, buf + 4, 16);
1287 memcpy(buf + 4, server->requests[i].buf + 4, 16);
1288 if (!checkmessageauth(buf, ATTRVAL(messageauth), server->peer.secret)) {
1289 pthread_mutex_unlock(&server->newrq_mutex);
1291 debug(DBG_WARN, "clientrd: message authentication failed");
1294 memcpy(buf + 4, tmp, 16);
1295 debug(DBG_DBG, "clientrd: message auth ok");
1298 if (*server->requests[i].buf == RAD_Status_Server) {
1299 server->requests[i].received = 1;
1300 pthread_mutex_unlock(&server->newrq_mutex);
1302 debug(DBG_INFO, "clientrd: got status server response from %s", server->peer.host);
1307 for (attr = attrs; (attr = attrget(attr, len - (attr - attrs), RAD_Attr_Vendor_Specific)); attr += ATTRLEN(attr)) {
1308 if (ATTRVALLEN(attr) <= 4)
1311 if (((uint16_t *)attr)[1] != 0 || ntohs(((uint16_t *)attr)[2]) != 311) /* 311 == MS */
1314 sublen = ATTRVALLEN(attr) - 4;
1315 subattrs = ATTRVAL(attr) + 4;
1316 if (!attrvalidate(subattrs, sublen) ||
1317 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1318 server->requests + i, server->peer.secret, from->peer.secret) ||
1319 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1320 server->requests + i, server->peer.secret, from->peer.secret))
1324 pthread_mutex_unlock(&server->newrq_mutex);
1326 debug(DBG_WARN, "clientrd: MS attribute handling failed, ignoring packet");
1330 if (*buf == RAD_Access_Accept || *buf == RAD_Access_Reject) {
1331 attr = attrget(server->requests[i].buf + 20, RADLEN(server->requests[i].buf) - 20, RAD_Attr_User_Name);
1332 /* we know the attribute exists */
1333 memcpy(tmp, ATTRVAL(attr), ATTRVALLEN(attr));
1334 tmp[ATTRVALLEN(attr)] = '\0';
1336 case RAD_Access_Accept:
1337 debug(DBG_INFO, "Access Accept for %s from %s", tmp, server->peer.host);
1339 case RAD_Access_Reject:
1340 debug(DBG_INFO, "Access Reject for %s from %s", tmp, server->peer.host);
1345 /* once we set received = 1, requests[i] may be reused */
1346 buf[1] = (char)server->requests[i].origid;
1347 memcpy(buf + 4, server->requests[i].origauth, 16);
1349 printauth("origauth/buf+4", buf + 4);
1353 if (!createmessageauth(buf, ATTRVAL(messageauth), from->peer.secret)) {
1354 pthread_mutex_unlock(&server->newrq_mutex);
1358 debug(DBG_DBG, "clientrd: computed messageauthattr");
1361 if (from->peer.type == 'U')
1362 fromsa = server->requests[i].fromsa;
1363 server->requests[i].received = 1;
1364 pthread_mutex_unlock(&server->newrq_mutex);
1366 debug(DBG_DBG, "clientrd: giving packet back to where it came from");
1367 sendreply(from, buf, from->peer.type == 'U' ? &fromsa : NULL);
1371 void *clientwr(void *arg) {
1372 struct server *server = (struct server *)arg;
1374 pthread_t clientrdth;
1377 struct timeval now, lastsend;
1378 struct timespec timeout;
1379 struct request statsrvrq;
1380 unsigned char statsrvbuf[38];
1382 memset(&timeout, 0, sizeof(struct timespec));
1384 if (server->statusserver) {
1385 memset(&statsrvrq, 0, sizeof(struct request));
1386 memset(statsrvbuf, 0, sizeof(statsrvbuf));
1387 statsrvbuf[0] = RAD_Status_Server;
1389 statsrvbuf[20] = RAD_Attr_Message_Authenticator;
1390 statsrvbuf[21] = 18;
1391 gettimeofday(&lastsend, NULL);
1394 if (server->peer.type == 'U') {
1395 if ((server->sock = connecttoserver(server->peer.addrinfo)) < 0)
1396 debugx(1, DBG_ERR, "clientwr: connecttoserver failed");
1398 tlsconnect(server, NULL, "new client");
1400 if (pthread_create(&clientrdth, NULL, clientrd, (void *)server))
1401 debugx(1, DBG_ERR, "clientwr: pthread_create failed");
1404 pthread_mutex_lock(&server->newrq_mutex);
1405 if (!server->newrq) {
1406 gettimeofday(&now, NULL);
1407 if (server->statusserver) {
1408 /* random 0-7 seconds */
1409 RAND_bytes(&rnd, 1);
1411 if (!timeout.tv_sec || timeout.tv_sec - now.tv_sec > lastsend.tv_sec + STATUS_SERVER_PERIOD + rnd)
1412 timeout.tv_sec = lastsend.tv_sec + STATUS_SERVER_PERIOD + rnd;
1414 if (timeout.tv_sec) {
1415 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
1416 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
1419 debug(DBG_DBG, "clientwr: waiting for new request");
1420 pthread_cond_wait(&server->newrq_cond, &server->newrq_mutex);
1423 if (server->newrq) {
1424 debug(DBG_DBG, "clientwr: got new request");
1427 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
1428 pthread_mutex_unlock(&server->newrq_mutex);
1430 for (i = 0; i < MAX_REQUESTS; i++) {
1431 pthread_mutex_lock(&server->newrq_mutex);
1432 while (!server->requests[i].buf && i < MAX_REQUESTS)
1434 if (i == MAX_REQUESTS) {
1435 pthread_mutex_unlock(&server->newrq_mutex);
1438 rq = server->requests + i;
1441 debug(DBG_DBG, "clientwr: packet %d in queue is marked as received", i);
1443 debug(DBG_DBG, "clientwr: freeing received packet %d from queue", i);
1445 /* setting this to NULL means that it can be reused */
1448 pthread_mutex_unlock(&server->newrq_mutex);
1452 gettimeofday(&now, NULL);
1453 if (now.tv_sec < rq->expiry.tv_sec) {
1454 if (!timeout.tv_sec || rq->expiry.tv_sec < timeout.tv_sec)
1455 timeout.tv_sec = rq->expiry.tv_sec;
1456 pthread_mutex_unlock(&server->newrq_mutex);
1460 if (rq->tries == (*rq->buf == RAD_Status_Server || server->peer.type == 'T'
1461 ? 1 : REQUEST_RETRIES)) {
1462 debug(DBG_DBG, "clientwr: removing expired packet from queue");
1463 if (*rq->buf == RAD_Status_Server)
1464 debug(DBG_WARN, "clientwr: no status server response, %s dead?", server->peer.host);
1466 /* setting this to NULL means that it can be reused */
1468 pthread_mutex_unlock(&server->newrq_mutex);
1471 pthread_mutex_unlock(&server->newrq_mutex);
1473 rq->expiry.tv_sec = now.tv_sec +
1474 (*rq->buf == RAD_Status_Server || server->peer.type == 'T'
1475 ? REQUEST_EXPIRY : REQUEST_EXPIRY / REQUEST_RETRIES);
1476 if (!timeout.tv_sec || rq->expiry.tv_sec < timeout.tv_sec)
1477 timeout.tv_sec = rq->expiry.tv_sec;
1479 clientradput(server, server->requests[i].buf);
1480 gettimeofday(&lastsend, NULL);
1482 if (server->statusserver) {
1483 gettimeofday(&now, NULL);
1484 if (now.tv_sec - lastsend.tv_sec >= STATUS_SERVER_PERIOD) {
1485 if (!RAND_bytes(statsrvbuf + 4, 16)) {
1486 debug(DBG_WARN, "clientwr: failed to generate random auth");
1489 statsrvrq.buf = malloc(sizeof(statsrvbuf));
1490 if (!statsrvrq.buf) {
1491 debug(DBG_ERR, "clientwr: malloc failed");
1494 memcpy(statsrvrq.buf, statsrvbuf, sizeof(statsrvbuf));
1495 debug(DBG_DBG, "clientwr: sending status server to %s", server->peer.host);
1496 lastsend.tv_sec = now.tv_sec;
1497 sendrq(server, &statsrvrq);
1503 void *udpserverwr(void *arg) {
1504 struct replyq *replyq = &udp_server_replyq;
1505 struct reply *reply = replyq->replies;
1507 pthread_mutex_lock(&replyq->count_mutex);
1509 while (!replyq->count) {
1510 debug(DBG_DBG, "udp server writer, waiting for signal");
1511 pthread_cond_wait(&replyq->count_cond, &replyq->count_mutex);
1512 debug(DBG_DBG, "udp server writer, got signal");
1514 pthread_mutex_unlock(&replyq->count_mutex);
1516 if (sendto(udp_server_sock, reply->buf, RADLEN(reply->buf), 0,
1517 (struct sockaddr *)&reply->tosa, SOCKADDR_SIZE(reply->tosa)) < 0)
1518 debug(DBG_WARN, "sendudp: send failed");
1521 pthread_mutex_lock(&replyq->count_mutex);
1523 memmove(replyq->replies, replyq->replies + 1,
1524 replyq->count * sizeof(struct reply));
1528 void *udpserverrd(void *arg) {
1530 pthread_t udpserverwrth;
1532 if ((udp_server_sock = bindtoaddr(udp_server_listen->addrinfo)) < 0)
1533 debugx(1, DBG_ERR, "udpserverrd: socket/bind failed");
1535 debug(DBG_WARN, "udpserverrd: listening for UDP on %s:%s",
1536 udp_server_listen->host ? udp_server_listen->host : "*", udp_server_listen->port);
1538 if (pthread_create(&udpserverwrth, NULL, udpserverwr, NULL))
1539 debugx(1, DBG_ERR, "pthread_create failed");
1542 memset(&rq, 0, sizeof(struct request));
1543 rq.buf = radudpget(udp_server_sock, &rq.from, NULL, &rq.fromsa);
1548 void *tlsserverwr(void *arg) {
1550 unsigned long error;
1551 struct client *client = (struct client *)arg;
1552 struct replyq *replyq;
1554 debug(DBG_DBG, "tlsserverwr starting for %s", client->peer.host);
1555 replyq = client->replyq;
1556 pthread_mutex_lock(&replyq->count_mutex);
1558 while (!replyq->count) {
1559 if (client->peer.ssl) {
1560 debug(DBG_DBG, "tls server writer, waiting for signal");
1561 pthread_cond_wait(&replyq->count_cond, &replyq->count_mutex);
1562 debug(DBG_DBG, "tls server writer, got signal");
1564 if (!client->peer.ssl) {
1565 /* ssl might have changed while waiting */
1566 pthread_mutex_unlock(&replyq->count_mutex);
1567 debug(DBG_DBG, "tlsserverwr: exiting as requested");
1571 pthread_mutex_unlock(&replyq->count_mutex);
1572 cnt = SSL_write(client->peer.ssl, replyq->replies->buf, RADLEN(replyq->replies->buf));
1574 debug(DBG_DBG, "tlsserverwr: Sent %d bytes, Radius packet of length %d",
1575 cnt, RADLEN(replyq->replies->buf));
1577 while ((error = ERR_get_error()))
1578 debug(DBG_ERR, "tlsserverwr: SSL: %s", ERR_error_string(error, NULL));
1579 free(replyq->replies->buf);
1581 pthread_mutex_lock(&replyq->count_mutex);
1583 memmove(replyq->replies, replyq->replies + 1, replyq->count * sizeof(struct reply));
1587 void *tlsserverrd(void *arg) {
1589 unsigned long error;
1591 struct client *client = (struct client *)arg;
1592 pthread_t tlsserverwrth;
1595 debug(DBG_DBG, "tlsserverrd starting for %s", client->peer.host);
1596 ssl = client->peer.ssl;
1598 if (SSL_accept(ssl) <= 0) {
1599 while ((error = ERR_get_error()))
1600 debug(DBG_ERR, "tlsserverrd: SSL: %s", ERR_error_string(error, NULL));
1601 debug(DBG_ERR, "SSL_accept failed");
1604 if (tlsverifycert(&client->peer)) {
1605 if (pthread_create(&tlsserverwrth, NULL, tlsserverwr, (void *)client)) {
1606 debug(DBG_ERR, "tlsserverrd: pthread_create failed");
1610 memset(&rq, 0, sizeof(struct request));
1611 rq.buf = radtlsget(client->peer.ssl);
1614 debug(DBG_DBG, "tlsserverrd: got Radius message from %s", client->peer.host);
1618 debug(DBG_ERR, "tlsserverrd: connection lost");
1619 /* stop writer by setting peer.ssl to NULL and give signal in case waiting for data */
1620 client->peer.ssl = NULL;
1621 pthread_mutex_lock(&client->replyq->count_mutex);
1622 pthread_cond_signal(&client->replyq->count_cond);
1623 pthread_mutex_unlock(&client->replyq->count_mutex);
1624 debug(DBG_DBG, "tlsserverrd: waiting for writer to end");
1625 pthread_join(tlsserverwrth, NULL);
1629 s = SSL_get_fd(ssl);
1631 shutdown(s, SHUT_RDWR);
1633 debug(DBG_DBG, "tlsserverrd thread for %s exiting", client->peer.host);
1634 client->peer.ssl = NULL;
1639 pthread_t tlsserverth;
1641 struct sockaddr_storage from;
1642 size_t fromlen = sizeof(from);
1643 struct client *client;
1645 if ((s = bindtoaddr(tcp_server_listen->addrinfo)) < 0)
1646 debugx(1, DBG_ERR, "tlslistener: socket/bind failed");
1649 debug(DBG_WARN, "listening for incoming TCP on %s:%s",
1650 tcp_server_listen->host ? tcp_server_listen->host : "*", tcp_server_listen->port);
1653 snew = accept(s, (struct sockaddr *)&from, &fromlen);
1655 debug(DBG_WARN, "accept failed");
1658 debug(DBG_WARN, "incoming TLS connection from %s", addr2string((struct sockaddr *)&from, fromlen));
1660 client = find_client('T', (struct sockaddr *)&from, NULL);
1662 debug(DBG_WARN, "ignoring request, not a known TLS client");
1663 shutdown(snew, SHUT_RDWR);
1668 if (client->peer.ssl) {
1669 debug(DBG_WARN, "Ignoring incoming TLS connection, already have one from this client");
1670 shutdown(snew, SHUT_RDWR);
1674 client->peer.ssl = SSL_new(ssl_ctx);
1675 SSL_set_fd(client->peer.ssl, snew);
1676 if (pthread_create(&tlsserverth, NULL, tlsserverrd, (void *)client)) {
1677 debug(DBG_ERR, "tlslistener: pthread_create failed");
1678 SSL_free(client->peer.ssl);
1679 shutdown(snew, SHUT_RDWR);
1681 client->peer.ssl = NULL;
1684 pthread_detach(tlsserverth);
1689 void addrealm(char *value, char *server) {
1691 struct realm *realm;
1692 char *s, *regex = NULL;
1694 for (i = 0; i < server_count; i++)
1695 if (!strcasecmp(server, servers[i].peer.host))
1697 if (i == server_count)
1698 debugx(1, DBG_ERR, "addrealm failed, no server %s", server);
1700 if (*value != '/') {
1701 /* not a regexp, let us make it one */
1702 if (*value == '*' && !value[1])
1703 regex = stringcopy(".*", 0);
1705 for (n = 0, s = value; *s;)
1708 regex = malloc(strlen(value) + n + 3);
1711 for (n = 1, s = value; *s; s++) {
1721 debugx(1, DBG_ERR, "malloc failed");
1722 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
1726 realms = realloc(realms, realm_count * sizeof(struct realm));
1728 debugx(1, DBG_ERR, "malloc failed");
1729 realm = realms + realm_count - 1;
1730 memset(realm, 0, sizeof(struct realm));
1731 realm->name = stringcopy(value, 0);
1733 debugx(1, DBG_ERR, "malloc failed");
1734 realm->server = servers + i;
1735 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_ICASE | REG_NOSUB))
1736 debugx(1, DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
1739 debug(DBG_DBG, "addrealm: added realm %s for server %s", value, server);
1742 char *parsehostport(char *s, struct peer *peer) {
1747 /* allow literal addresses and port, e.g. [2001:db8::1]:1812 */
1751 for (; *p && *p != ']' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
1753 debugx(1, DBG_ERR, "no ] matching initial [");
1757 for (; *p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
1760 debugx(1, DBG_ERR, "missing host/address");
1762 peer->host = stringcopy(field, p - field);
1765 if (*p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n')
1766 debugx(1, DBG_ERR, "unexpected character after ]");
1769 /* port number or service name is specified */;
1771 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
1773 debugx(1, DBG_ERR, "syntax error, : but no following port");
1774 peer->port = stringcopy(field, p - field);
1776 peer->port = stringcopy(peer->type == 'U' ? DEFAULT_UDP_PORT : DEFAULT_TLS_PORT, 0);
1780 /* TODO remove this */
1781 /* * is default, else longest match ... ";" used for separator */
1782 char *parserealmlist(char *s, struct server *server) {
1789 for (p = s, n = 1; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++)
1794 debugx(1, DBG_ERR, "realm list must be specified");
1796 realmdata = stringcopy(s, l);
1797 realms = malloc((1+n) * sizeof(char *));
1799 debugx(1, DBG_ERR, "malloc failed");
1800 realms[0] = realmdata;
1801 for (n = 1, i = 0; i < l; i++)
1802 if (realmdata[i] == ';') {
1803 realmdata[i] = '\0';
1804 realms[n++] = realmdata + i + 1;
1806 for (i = 0; i < n; i++)
1807 addrealm(realms[i], server->peer.host);
1815 for (start = s;; s++)
1816 if (!*s || *s == ';' || *s == ' ' || *s == '\t' || *s == '\n') {
1817 if (s - start > 0) {
1818 realm = stringcopy(start, s - start);
1819 addrealm(realm, server->peer.host);
1829 FILE *openconfigfile(const char *filename) {
1831 char pathname[100], *base = NULL;
1833 f = fopen(filename, "r");
1835 debug(DBG_DBG, "reading config file %s", filename);
1839 if (strlen(filename) + 1 <= sizeof(pathname)) {
1840 /* basename() might modify the string */
1841 strcpy(pathname, filename);
1842 base = basename(pathname);
1843 f = fopen(base, "r");
1847 debugx(1, DBG_ERR, "could not read config file %s nor %s\n%s", filename, base, strerror(errno));
1849 debug(DBG_DBG, "reading config file %s", base);
1853 /* exactly one argument must be non-NULL */
1854 void getconfig(const char *serverfile, const char *clientfile) {
1858 struct client *client;
1859 struct server *server;
1861 int i, count, *ucount, *tcount;
1863 f = openconfigfile(serverfile ? serverfile : clientfile);
1865 ucount = &server_udp_count;
1866 tcount = &server_tls_count;
1868 ucount = &client_udp_count;
1869 tcount = &client_tls_count;
1871 while (fgets(line, 1024, f)) {
1872 for (p = line; *p == ' ' || *p == '\t'; p++);
1884 debugx(1, DBG_ERR, "type must be U or T, got %c", *p);
1889 count = server_count = server_udp_count + server_tls_count;
1890 servers = calloc(count, sizeof(struct server));
1892 debugx(1, DBG_ERR, "malloc failed");
1894 if (client_udp_count) {
1895 udp_server_replyq.replies = malloc(client_udp_count * MAX_REQUESTS * sizeof(struct reply));
1896 if (!udp_server_replyq.replies)
1897 debugx(1, DBG_ERR, "malloc failed");
1898 udp_server_replyq.size = client_udp_count * MAX_REQUESTS;
1899 udp_server_replyq.count = 0;
1900 pthread_mutex_init(&udp_server_replyq.count_mutex, NULL);
1901 pthread_cond_init(&udp_server_replyq.count_cond, NULL);
1904 count = client_count = client_udp_count + client_tls_count;
1905 clients = calloc(count, sizeof(struct client));
1907 debugx(1, DBG_ERR, "malloc failed");
1911 for (i = 0; i < count && fgets(line, 1024, f);) {
1913 server = &servers[i];
1914 peer = &server->peer;
1916 client = &clients[i];
1917 peer = &client->peer;
1919 for (p = line; *p == ' ' || *p == '\t'; p++);
1920 if (*p == '#' || *p == '\n')
1922 peer->type = *p; /* we already know it must be U or T */
1923 for (p++; *p == ' ' || *p == '\t'; p++);
1924 p = parsehostport(p, peer);
1925 for (; *p == ' ' || *p == '\t'; p++);
1927 p = parserealmlist(p, server);
1928 for (; *p == ' ' || *p == '\t'; p++);
1931 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
1933 /* no secret set and end of line, line is complete if TLS */
1934 if (peer->type == 'U')
1935 debugx(1, DBG_ERR, "secret must be specified for UDP");
1936 peer->secret = stringcopy(DEFAULT_TLS_SECRET, 0);
1938 peer->secret = stringcopy(field, p - field);
1939 /* check that rest of line only white space */
1940 for (; *p == ' ' || *p == '\t'; p++);
1941 if (*p && *p != '\n')
1942 debugx(1, DBG_ERR, "max 4 fields per line, found a 5th");
1945 if ((serverfile && !resolvepeer(&server->peer, 0)) ||
1946 (clientfile && !resolvepeer(&client->peer, 0)))
1947 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", peer->host, peer->port);
1950 pthread_mutex_init(&server->lock, NULL);
1952 server->requests = calloc(MAX_REQUESTS, sizeof(struct request));
1953 if (!server->requests)
1954 debugx(1, DBG_ERR, "malloc failed");
1956 pthread_mutex_init(&server->newrq_mutex, NULL);
1957 pthread_cond_init(&server->newrq_cond, NULL);
1959 if (peer->type == 'U')
1960 client->replyq = &udp_server_replyq;
1962 client->replyq = malloc(sizeof(struct replyq));
1963 if (!client->replyq)
1964 debugx(1, DBG_ERR, "malloc failed");
1965 client->replyq->replies = calloc(MAX_REQUESTS, sizeof(struct reply));
1966 if (!client->replyq->replies)
1967 debugx(1, DBG_ERR, "malloc failed");
1968 client->replyq->size = MAX_REQUESTS;
1969 client->replyq->count = 0;
1970 pthread_mutex_init(&client->replyq->count_mutex, NULL);
1971 pthread_cond_init(&client->replyq->count_cond, NULL);
1974 debug(DBG_DBG, "got type %c, host %s, port %s, secret %s", peer->type, peer->host, peer->port, peer->secret);
1980 struct peer *server_create(char type) {
1981 struct peer *server;
1984 server = malloc(sizeof(struct peer));
1986 debugx(1, DBG_ERR, "malloc failed");
1987 memset(server, 0, sizeof(struct peer));
1988 server->type = type;
1989 conf = (type == 'T' ? options.listentcp : options.listenudp);
1991 parsehostport(conf, server);
1992 if (!strcmp(server->host, "*")) {
1994 server->host = NULL;
1997 server->port = stringcopy(type == 'T' ? DEFAULT_TLS_PORT : DEFAULT_UDP_PORT, 0);
1998 if (!resolvepeer(server, AI_PASSIVE))
1999 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", server->host, server->port);
2003 /* returns NULL on error, where to continue parsing if token and ok. E.g. "" will return token with empty string */
2004 char *strtokenquote(char *s, char **token, char *del, char *quote) {
2005 char *t = s, *q, *r;
2007 if (!t || !token || !del)
2009 while (*t && strchr(del, *t))
2013 return t + 1; /* needs to be non-NULL, but value doesn't matter */
2015 if (quote && (q = strchr(quote, *t))) {
2018 while (*t && *t != *q)
2020 if (!*t || (t[1] && !strchr(del, t[1])))
2028 while (*t && !strchr(del, *t))
2034 /* Parses config with following syntax:
2037 * option-name = value
2039 * option-name value {
2040 * option-name [=] value
2044 void getgeneralconfig(FILE *f, char *block, ...) {
2047 /* initialise lots of stuff to avoid stupid compiler warnings */
2048 char *tokens[3], *s, *opt = NULL, *val = NULL, *word, **str = NULL;
2049 int type = 0, tcount, conftype = 0;
2050 void (*cbk)(FILE *, char *, char *) = NULL;
2052 while (fgets(line, 1024, f)) {
2054 for (tcount = 0; tcount < 3; tcount++) {
2055 s = strtokenquote(s, &tokens[tcount], " \t\n", "\"'");
2057 debugx(1, DBG_ERR, "Syntax error in line starting with: %s", line);
2058 if (!tokens[tcount])
2061 if (!tcount || **tokens == '#')
2064 if (**tokens == '}') {
2067 debugx(1, DBG_ERR, "configuration error, found } with no matching {");
2074 conftype = CONF_STR;
2077 if (tokens[1][0] == '=' && tokens[1][1] == '\0') {
2080 conftype = CONF_STR;
2083 if (tokens[2][0] == '{' && tokens[2][1] == '\0') {
2086 conftype = CONF_CBK;
2092 debugx(1, DBG_ERR, "configuration error in block %s, line starting with %s", block, tokens[0]);
2093 debugx(1, DBG_ERR, "configuration error, syntax error in line starting with %s", tokens[0]);
2097 debugx(1, DBG_ERR, "configuration error, option %s needs a non-empty value", opt);
2099 va_start(ap, block);
2100 while ((word = va_arg(ap, char *))) {
2101 type = va_arg(ap, int);
2104 str = va_arg(ap, char **);
2106 debugx(1, DBG_ERR, "getgeneralconfig: internal parameter error");
2109 cbk = va_arg(ap, void (*)(FILE *, char *, char *));
2112 debugx(1, DBG_ERR, "getgeneralconfig: internal parameter error");
2114 if (!strcasecmp(opt, word))
2121 debugx(1, DBG_ERR, "configuration error in block %s, unknown option %s", block, opt);
2122 debugx(1, DBG_ERR, "configuration error, unknown option %s", opt);
2125 if (type != conftype) {
2127 debugx(1, DBG_ERR, "configuration error in block %s, wrong syntax for option %s", block, opt);
2128 debugx(1, DBG_ERR, "configuration error, wrong syntax for option %s", opt);
2134 debug(DBG_DBG, "getgeneralconfig: block %s: %s = %s", block, opt, val);
2136 debug(DBG_DBG, "getgeneralconfig: %s = %s", opt, val);
2137 *str = stringcopy(val, 0);
2143 debugx(1, DBG_ERR, "getgeneralconfig: internal parameter error");
2148 void confclsrv_cb(FILE *f, char *opt, char *val) {
2149 char *type = NULL, *secret = NULL, *port = NULL, *statusserver = NULL;
2151 struct client *client = NULL;
2152 struct server *server = NULL;
2155 block = malloc(strlen(opt) + strlen(val) + 2);
2157 debugx(1, DBG_ERR, "malloc failed");
2158 sprintf(block, "%s %s", opt, val);
2159 debug(DBG_DBG, "confclsrv_cb called for %s", block);
2161 if (!strcasecmp(opt, "client")) {
2162 getgeneralconfig(f, block,
2163 "type", CONF_STR, &type,
2164 "secret", CONF_STR, &secret,
2168 clients = realloc(clients, client_count * sizeof(struct client));
2170 debugx(1, DBG_ERR, "malloc failed");
2171 client = clients + client_count - 1;
2172 memset(client, 0, sizeof(struct client));
2173 peer = &client->peer;
2175 getgeneralconfig(f, block,
2176 "type", CONF_STR, &type,
2177 "secret", CONF_STR, &secret,
2178 "port", CONF_STR, &port,
2179 "StatusServer", CONF_STR, &statusserver,
2183 servers = realloc(servers, server_count * sizeof(struct server));
2185 debugx(1, DBG_ERR, "malloc failed");
2186 server = servers + server_count - 1;
2187 memset(server, 0, sizeof(struct server));
2188 peer = &server->peer;
2191 if (!strcasecmp(statusserver, "on"))
2192 server->statusserver = 1;
2193 else if (strcasecmp(statusserver, "off"))
2194 debugx(1, DBG_ERR, "error in block %s, StatusServer is %s, must be on or off", block, statusserver);
2199 peer->host = stringcopy(val, 0);
2201 if (type && !strcasecmp(type, "udp")) {
2208 peer->port = stringcopy(DEFAULT_UDP_PORT, 0);
2210 } else if (type && !strcasecmp(type, "tls")) {
2217 peer->port = stringcopy(DEFAULT_TLS_PORT, 0);
2220 debugx(1, DBG_ERR, "error in block %s, type must be set to UDP or TLS", block);
2223 if (!resolvepeer(peer, 0))
2224 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", peer->host, peer->port);
2227 if (peer->type == 'U')
2228 debugx(1, DBG_ERR, "error in block %s, secret must be specified for UDP", block);
2229 peer->secret = stringcopy(DEFAULT_TLS_SECRET, 0);
2231 peer->secret = secret;
2235 if (peer->type == 'U')
2236 client->replyq = &udp_server_replyq;
2238 client->replyq = malloc(sizeof(struct replyq));
2239 if (!client->replyq)
2240 debugx(1, DBG_ERR, "malloc failed");
2241 client->replyq->replies = calloc(MAX_REQUESTS, sizeof(struct reply));
2242 if (!client->replyq->replies)
2243 debugx(1, DBG_ERR, "malloc failed");
2244 client->replyq->size = MAX_REQUESTS;
2245 client->replyq->count = 0;
2246 pthread_mutex_init(&client->replyq->count_mutex, NULL);
2247 pthread_cond_init(&client->replyq->count_cond, NULL);
2250 pthread_mutex_init(&server->lock, NULL);
2252 server->requests = calloc(MAX_REQUESTS, sizeof(struct request));
2253 if (!server->requests)
2254 debugx(1, DBG_ERR, "malloc failed");
2256 pthread_mutex_init(&server->newrq_mutex, NULL);
2257 pthread_cond_init(&server->newrq_cond, NULL);
2263 void confrealm_cb(FILE *f, char *opt, char *val) {
2264 char *server = NULL;
2267 block = malloc(strlen(opt) + strlen(val) + 2);
2269 debugx(1, DBG_ERR, "malloc failed");
2270 sprintf(block, "%s %s", opt, val);
2271 debug(DBG_DBG, "confrealm_cb called for %s", block);
2273 getgeneralconfig(f, block,
2274 "server", CONF_STR, &server,
2278 debugx(1, DBG_ERR, "error in block %s, server must be specified", block);
2280 addrealm(val, server);
2285 void getmainconfig(const char *configfile) {
2287 char *loglevel = NULL;
2289 f = openconfigfile(configfile);
2290 memset(&options, 0, sizeof(options));
2292 getgeneralconfig(f, NULL,
2293 "TLSCACertificateFile", CONF_STR, &options.tlscacertificatefile,
2294 "TLSCACertificatePath", CONF_STR, &options.tlscacertificatepath,
2295 "TLSCertificateFile", CONF_STR, &options.tlscertificatefile,
2296 "TLSCertificateKeyFile", CONF_STR, &options.tlscertificatekeyfile,
2297 "TLSCertificateKeyPassword", CONF_STR, &options.tlscertificatekeypassword,
2298 "ListenUDP", CONF_STR, &options.listenudp,
2299 "ListenTCP", CONF_STR, &options.listentcp,
2300 "LogLevel", CONF_STR, &loglevel,
2301 "LogDestination", CONF_STR, &options.logdestination,
2302 "Client", CONF_CBK, confclsrv_cb,
2303 "Server", CONF_CBK, confclsrv_cb,
2304 "Realm", CONF_CBK, confrealm_cb,
2310 if (strlen(loglevel) != 1 || *loglevel < '1' || *loglevel > '4')
2311 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %s, must be 1, 2, 3 or 4", configfile, loglevel);
2312 options.loglevel = *loglevel - '0';
2316 if (client_udp_count) {
2317 udp_server_replyq.replies = malloc(client_udp_count * MAX_REQUESTS * sizeof(struct reply));
2318 if (!udp_server_replyq.replies)
2319 debugx(1, DBG_ERR, "malloc failed");
2320 udp_server_replyq.size = client_udp_count * MAX_REQUESTS;
2321 udp_server_replyq.count = 0;
2322 pthread_mutex_init(&udp_server_replyq.count_mutex, NULL);
2323 pthread_cond_init(&udp_server_replyq.count_cond, NULL);
2327 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *loglevel, char **configfile) {
2330 while ((c = getopt(argc, argv, "c:d:fv")) != -1) {
2333 *configfile = optarg;
2336 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
2337 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
2338 *loglevel = *optarg - '0';
2344 debugx(0, DBG_ERR, "radsecproxy revision $Rev$");
2349 if (!(argc - optind))
2353 debug(DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -v ]", argv[0]);
2357 int main(int argc, char **argv) {
2358 pthread_t udpserverth;
2360 uint8_t foreground = 0, loglevel = 0;
2361 char *configfile = NULL;
2363 debug_init("radsecproxy");
2364 debug_set_level(DEBUG_LEVEL);
2365 getargs(argc, argv, &foreground, &loglevel, &configfile);
2367 debug_set_level(loglevel);
2368 getmainconfig(configfile ? configfile : CONFIG_MAIN);
2370 options.loglevel = loglevel;
2371 else if (options.loglevel)
2372 debug_set_level(options.loglevel);
2374 options.logdestination = NULL;
2376 if (!options.logdestination)
2377 options.logdestination = "x-syslog://";
2378 debug_set_destination(options.logdestination);
2381 /* TODO remove getconfig completely when all use new config method */
2383 getconfig(CONFIG_SERVERS, NULL);
2385 getconfig(NULL, CONFIG_CLIENTS);
2387 /* TODO exit if not at least one client and one server configured */
2389 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
2391 if (!foreground && (daemon(0, 0) < 0))
2392 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
2394 if (client_udp_count) {
2395 udp_server_listen = server_create('U');
2396 if (pthread_create(&udpserverth, NULL, udpserverrd, NULL))
2397 debugx(1, DBG_ERR, "pthread_create failed");
2400 if (client_tls_count || server_tls_count)
2401 ssl_ctx = ssl_init();
2403 for (i = 0; i < server_count; i++)
2404 if (pthread_create(&servers[i].clientth, NULL, clientwr, (void *)&servers[i]))
2405 debugx(1, DBG_ERR, "pthread_create failed");
2407 if (client_tls_count) {
2408 tcp_server_listen = server_create('T');
2409 return tlslistener();
2412 /* just hang around doing nothing, anything to do here? */