2 * Copyright (C) 2006-2008 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
33 #include <sys/socket.h>
34 #include <netinet/in.h>
42 #include <sys/types.h>
43 #include <arpa/inet.h>
47 #include <openssl/ssl.h>
48 #include <openssl/rand.h>
49 #include <openssl/err.h>
50 #include <openssl/md5.h>
51 #include <openssl/hmac.h>
52 #include <openssl/x509v3.h>
57 #include "radsecproxy.h"
59 static struct options options;
60 struct list *clconfs, *srvconfs, *realms, *tlsconfs, *rewriteconfs;
62 static int client_udp_count = 0;
63 static int client_tls_count = 0;
64 static int server_udp_count = 0;
65 static int server_tls_count = 0;
67 static struct addrinfo *srcudpres = NULL;
68 static struct addrinfo *srctcpres = NULL;
70 static struct replyq *udp_server_replyq = NULL;
71 static int udp_server_sock = -1;
72 static int udp_accserver_sock = -1;
73 static int udp_client4_sock = -1;
74 static int udp_client6_sock = -1;
75 static pthread_mutex_t *ssl_locks;
76 static long *ssl_lock_count;
80 /* callbacks for making OpenSSL thread safe */
81 unsigned long ssl_thread_id() {
82 return (unsigned long)pthread_self();
85 void ssl_locking_callback(int mode, int type, const char *file, int line) {
86 if (mode & CRYPTO_LOCK) {
87 pthread_mutex_lock(&ssl_locks[type]);
88 ssl_lock_count[type]++;
90 pthread_mutex_unlock(&ssl_locks[type]);
93 static int pem_passwd_cb(char *buf, int size, int rwflag, void *userdata) {
94 int pwdlen = strlen(userdata);
95 if (rwflag != 0 || pwdlen > size) /* not for decryption or too large */
97 memcpy(buf, userdata, pwdlen);
101 static int verify_cb(int ok, X509_STORE_CTX *ctx) {
106 err_cert = X509_STORE_CTX_get_current_cert(ctx);
107 err = X509_STORE_CTX_get_error(ctx);
108 depth = X509_STORE_CTX_get_error_depth(ctx);
110 if (depth > MAX_CERT_DEPTH) {
112 err = X509_V_ERR_CERT_CHAIN_TOO_LONG;
113 X509_STORE_CTX_set_error(ctx, err);
117 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
118 debug(DBG_WARN, "verify error: num=%d:%s:depth=%d:%s", err, X509_verify_cert_error_string(err), depth, buf);
121 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
122 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf, 256);
123 debug(DBG_WARN, "\tIssuer=%s", buf);
125 case X509_V_ERR_CERT_NOT_YET_VALID:
126 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
127 debug(DBG_WARN, "\tCertificate not yet valid");
129 case X509_V_ERR_CERT_HAS_EXPIRED:
130 debug(DBG_WARN, "Certificate has expired");
132 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
133 debug(DBG_WARN, "Certificate no longer valid (after notAfter)");
138 printf("certificate verify returns %d\n", ok);
143 int resolvepeer(struct clsrvconf *conf, int ai_flags) {
144 struct addrinfo hints, *addrinfo, *res;
148 slash = conf->host ? strchr(conf->host, '/') : NULL;
152 debug(DBG_WARN, "resolvepeer: prefix length must be specified after the / in %s", conf->host);
156 if (*s < '0' || *s > '9') {
157 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
160 plen = atoi(slash + 1);
161 if (plen < 0 || plen > 128) {
162 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
167 memset(&hints, 0, sizeof(hints));
168 hints.ai_socktype = (conf->type == 'T' ? SOCK_STREAM : SOCK_DGRAM);
169 hints.ai_family = AF_UNSPEC;
170 hints.ai_flags = ai_flags;
171 if (!conf->host && !conf->port) {
172 /* getaddrinfo() doesn't like host and port to be NULL */
173 if (getaddrinfo(conf->host, DEFAULT_UDP_PORT, &hints, &addrinfo)) {
174 debug(DBG_WARN, "resolvepeer: can't resolve (null) port (null)");
177 for (res = addrinfo; res; res = res->ai_next) {
178 switch (res->ai_family) {
180 ((struct sockaddr_in *)res->ai_addr)->sin_port = 0;
183 ((struct sockaddr_in6 *)res->ai_addr)->sin6_port = 0;
189 hints.ai_flags |= AI_NUMERICHOST;
190 if (getaddrinfo(conf->host, conf->port, &hints, &addrinfo)) {
191 debug(DBG_WARN, "resolvepeer: can't resolve %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
196 switch (addrinfo->ai_family) {
199 debug(DBG_WARN, "resolvepeer: prefix length must be <= 32 in %s", conf->host);
200 freeaddrinfo(addrinfo);
207 debug(DBG_WARN, "resolvepeer: prefix must be IPv4 or IPv6 in %s", conf->host);
208 freeaddrinfo(addrinfo);
211 conf->prefixlen = plen;
213 conf->prefixlen = 255;
216 freeaddrinfo(conf->addrinfo);
217 conf->addrinfo = addrinfo;
221 int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
223 struct addrinfo *res;
225 for (res = addrinfo; res; res = res->ai_next) {
226 if (family != AF_UNSPEC && family != res->ai_family)
228 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
230 debug(DBG_WARN, "bindtoaddr: socket failed");
234 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
237 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
240 if (!bind(s, res->ai_addr, res->ai_addrlen))
242 debug(DBG_WARN, "bindtoaddr: bind failed");
248 char *parsehostport(char *s, struct clsrvconf *conf, char *default_port) {
253 /* allow literal addresses and port, e.g. [2001:db8::1]:1812 */
257 for (; *p && *p != ']' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
259 debugx(1, DBG_ERR, "no ] matching initial [");
263 for (; *p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
266 debugx(1, DBG_ERR, "missing host/address");
268 conf->host = stringcopy(field, p - field);
271 if (*p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n')
272 debugx(1, DBG_ERR, "unexpected character after ]");
275 /* port number or service name is specified */;
277 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
279 debugx(1, DBG_ERR, "syntax error, : but no following port");
280 conf->port = stringcopy(field, p - field);
282 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
286 struct clsrvconf *resolve_hostport(char type, char *lconf, char *default_port) {
287 struct clsrvconf *conf;
289 conf = malloc(sizeof(struct clsrvconf));
291 debugx(1, DBG_ERR, "malloc failed");
292 memset(conf, 0, sizeof(struct clsrvconf));
295 parsehostport(lconf, conf, default_port);
296 if (!strcmp(conf->host, "*")) {
301 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
302 if (!resolvepeer(conf, AI_PASSIVE))
303 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
307 void freeclsrvres(struct clsrvconf *res) {
311 freeaddrinfo(res->addrinfo);
315 int connecttcp(struct addrinfo *addrinfo) {
317 struct addrinfo *res;
320 for (res = addrinfo; res; res = res->ai_next) {
321 s = bindtoaddr(srctcpres, res->ai_family, 1, 1);
323 debug(DBG_WARN, "connecttoserver: socket failed");
326 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
328 debug(DBG_WARN, "connecttoserver: connect failed");
335 /* returns 1 if the len first bits are equal, else 0 */
336 int prefixmatch(void *a1, void *a2, uint8_t len) {
337 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
339 if (l && memcmp(a1, a2, l))
344 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
347 /* check if conf has matching address */
348 struct clsrvconf *checkconfaddr(char type, struct sockaddr *addr, struct clsrvconf *conf) {
349 struct sockaddr_in6 *sa6 = NULL;
350 struct in_addr *a4 = NULL;
351 struct addrinfo *res;
353 if (addr->sa_family == AF_INET6) {
354 sa6 = (struct sockaddr_in6 *)addr;
355 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
356 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
360 a4 = &((struct sockaddr_in *)addr)->sin_addr;
362 if (conf->type == type) {
363 if (conf->prefixlen == 255) {
364 for (res = conf->addrinfo; res; res = res->ai_next)
365 if ((a4 && res->ai_family == AF_INET &&
366 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
367 (sa6 && res->ai_family == AF_INET6 &&
368 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16)))
371 res = conf->addrinfo;
373 ((a4 && res->ai_family == AF_INET &&
374 prefixmatch(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, conf->prefixlen)) ||
375 (sa6 && res->ai_family == AF_INET6 &&
376 prefixmatch(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, conf->prefixlen))))
383 /* returns next config with matching address, or NULL */
384 struct clsrvconf *find_conf(char type, struct sockaddr *addr, struct list *confs, struct list_node **cur) {
385 struct sockaddr_in6 *sa6 = NULL;
386 struct in_addr *a4 = NULL;
387 struct addrinfo *res;
388 struct list_node *entry;
389 struct clsrvconf *conf;
391 if (addr->sa_family == AF_INET6) {
392 sa6 = (struct sockaddr_in6 *)addr;
393 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
394 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
398 a4 = &((struct sockaddr_in *)addr)->sin_addr;
400 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
401 conf = (struct clsrvconf *)entry->data;
402 if (conf->type == type) {
403 if (conf->prefixlen == 255) {
404 for (res = conf->addrinfo; res; res = res->ai_next)
405 if ((a4 && res->ai_family == AF_INET &&
406 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
407 (sa6 && res->ai_family == AF_INET6 &&
408 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16))) {
414 res = conf->addrinfo;
416 ((a4 && res->ai_family == AF_INET &&
417 prefixmatch(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, conf->prefixlen)) ||
418 (sa6 && res->ai_family == AF_INET6 &&
419 prefixmatch(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, conf->prefixlen)))) {
430 struct replyq *newreplyq() {
431 struct replyq *replyq;
433 replyq = malloc(sizeof(struct replyq));
435 debugx(1, DBG_ERR, "malloc failed");
436 replyq->replies = list_create();
437 if (!replyq->replies)
438 debugx(1, DBG_ERR, "malloc failed");
439 pthread_mutex_init(&replyq->mutex, NULL);
440 pthread_cond_init(&replyq->cond, NULL);
444 struct client *addclient(struct clsrvconf *conf) {
445 struct client *new = malloc(sizeof(struct client));
448 debug(DBG_ERR, "malloc failed");
451 if (!conf->clients) {
452 conf->clients = list_create();
453 if (!conf->clients) {
454 debug(DBG_ERR, "malloc failed");
459 memset(new, 0, sizeof(struct client));
461 new->replyq = conf->type == 'T' ? newreplyq() : udp_server_replyq;
463 list_push(conf->clients, new);
467 void removeclient(struct client *client) {
468 struct list_node *entry;
470 if (!client || !client->conf->clients)
473 pthread_mutex_lock(&client->replyq->mutex);
474 for (entry = list_first(client->replyq->replies); entry; entry = list_next(entry))
475 free(((struct reply *)entry)->buf);
476 list_destroy(client->replyq->replies);
477 pthread_mutex_unlock(&client->replyq->mutex);
478 list_removedata(client->conf->clients, client);
482 void removeclientrqs(struct client *client) {
483 struct list_node *entry;
484 struct server *server;
488 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
489 server = ((struct clsrvconf *)entry->data)->servers;
490 pthread_mutex_lock(&server->newrq_mutex);
491 for (i = 0; i < MAX_REQUESTS; i++) {
492 rq = server->requests + i;
493 if (rq->from == client)
496 pthread_mutex_unlock(&server->newrq_mutex);
500 void addserver(struct clsrvconf *conf) {
501 struct clsrvconf *res;
504 debugx(1, DBG_ERR, "addserver: currently works with just one server per conf");
506 conf->servers = malloc(sizeof(struct server));
508 debugx(1, DBG_ERR, "malloc failed");
509 memset(conf->servers, 0, sizeof(struct server));
510 conf->servers->conf = conf;
512 if (conf->type == 'U') {
514 res = resolve_hostport('U', options.sourceudp, NULL);
515 srcudpres = res->addrinfo;
516 res->addrinfo = NULL;
519 switch (conf->addrinfo->ai_family) {
521 if (udp_client4_sock < 0) {
522 udp_client4_sock = bindtoaddr(srcudpres, AF_INET, 0, 1);
523 if (udp_client4_sock < 0)
524 debugx(1, DBG_ERR, "addserver: failed to create client socket for server %s", conf->host);
526 conf->servers->sock = udp_client4_sock;
529 if (udp_client6_sock < 0) {
530 udp_client6_sock = bindtoaddr(srcudpres, AF_INET6, 0, 1);
531 if (udp_client6_sock < 0)
532 debugx(1, DBG_ERR, "addserver: failed to create client socket for server %s", conf->host);
534 conf->servers->sock = udp_client6_sock;
537 debugx(1, DBG_ERR, "addserver: unsupported address family");
542 res = resolve_hostport('T', options.sourcetcp, NULL);
543 srctcpres = res->addrinfo;
544 res->addrinfo = NULL;
547 conf->servers->sock = -1;
550 pthread_mutex_init(&conf->servers->lock, NULL);
551 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct request));
552 if (!conf->servers->requests)
553 debugx(1, DBG_ERR, "malloc failed");
554 conf->servers->newrq = 0;
555 pthread_mutex_init(&conf->servers->newrq_mutex, NULL);
556 pthread_cond_init(&conf->servers->newrq_cond, NULL);
559 /* exactly one of client and server must be non-NULL */
560 /* should probably take peer list (client(s) or server(s)) as argument instead */
561 /* if *peer == NULL we return who we received from, else require it to be from peer */
562 /* return from in sa if not NULL */
563 unsigned char *radudpget(int s, struct client **client, struct server **server, struct sockaddr_storage *sa) {
565 unsigned char buf[65536], *rad;
566 struct sockaddr_storage from;
567 socklen_t fromlen = sizeof(from);
569 struct list_node *node;
572 cnt = recvfrom(s, buf, sizeof(buf), 0, (struct sockaddr *)&from, &fromlen);
574 debug(DBG_WARN, "radudpget: recv failed");
577 debug(DBG_DBG, "radudpget: got %d bytes from %s", cnt, addr2string((struct sockaddr *)&from, fromlen));
580 debug(DBG_WARN, "radudpget: packet too small");
586 debug(DBG_WARN, "radudpget: length too small");
591 debug(DBG_WARN, "radudpget: packet smaller than length field in radius header");
595 debug(DBG_DBG, "radudpget: packet was padded with %d bytes", cnt - len);
599 p = checkconfaddr('U', (struct sockaddr *)&from, (*client)->conf);
601 p = find_conf('U', (struct sockaddr *)&from, clconfs, NULL);
604 p = checkconfaddr('U', (struct sockaddr *)&from, (*server)->conf);
606 p = find_conf('U', (struct sockaddr *)&from, srvconfs, NULL);
609 debug(DBG_WARN, "radudpget: got packet from wrong or unknown UDP peer, ignoring");
615 debug(DBG_ERR, "radudpget: malloc failed");
619 if (client && !*client) {
620 node = list_first(p->clients);
621 *client = node ? (struct client *)node->data : addclient(p);
626 } else if (server && !*server)
627 *server = p->servers;
631 memcpy(rad, buf, len);
637 int subjectaltnameaddr(X509 *cert, int family, struct in6_addr *addr) {
638 int loc, i, l, n, r = 0;
641 STACK_OF(GENERAL_NAME) *alt;
644 debug(DBG_DBG, "subjectaltnameaddr");
646 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
650 ex = X509_get_ext(cert, loc);
651 alt = X509V3_EXT_d2i(ex);
655 n = sk_GENERAL_NAME_num(alt);
656 for (i = 0; i < n; i++) {
657 gn = sk_GENERAL_NAME_value(alt, i);
658 if (gn->type != GEN_IPADD)
661 v = (char *)ASN1_STRING_data(gn->d.ia5);
662 l = ASN1_STRING_length(gn->d.ia5);
663 if (((family == AF_INET && l == sizeof(struct in_addr)) || (family == AF_INET6 && l == sizeof(struct in6_addr)))
664 && !memcmp(v, &addr, l)) {
669 GENERAL_NAMES_free(alt);
673 int cnregexp(X509 *cert, char *exact, regex_t *regex) {
680 nm = X509_get_subject_name(cert);
683 loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
686 e = X509_NAME_get_entry(nm, loc);
687 t = X509_NAME_ENTRY_get_data(e);
688 v = (char *) ASN1_STRING_data(t);
689 l = ASN1_STRING_length(t);
693 if (l == strlen(exact) && !strncasecmp(exact, v, l))
696 s = stringcopy((char *)v, l);
698 debug(DBG_ERR, "malloc failed");
701 if (regexec(regex, s, 0, NULL, 0)) {
712 int subjectaltnameregexp(X509 *cert, int type, char *exact, regex_t *regex) {
713 int loc, i, l, n, r = 0;
716 STACK_OF(GENERAL_NAME) *alt;
719 debug(DBG_DBG, "subjectaltnameregexp");
721 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
725 ex = X509_get_ext(cert, loc);
726 alt = X509V3_EXT_d2i(ex);
730 n = sk_GENERAL_NAME_num(alt);
731 for (i = 0; i < n; i++) {
732 gn = sk_GENERAL_NAME_value(alt, i);
733 if (gn->type != type)
736 v = (char *)ASN1_STRING_data(gn->d.ia5);
737 l = ASN1_STRING_length(gn->d.ia5);
741 printfchars(NULL, gn->type == GEN_DNS ? "dns" : "uri", NULL, v, l);
744 if (memcmp(v, exact, l))
747 s = stringcopy((char *)v, l);
749 debug(DBG_ERR, "malloc failed");
752 if (regexec(regex, s, 0, NULL, 0)) {
761 GENERAL_NAMES_free(alt);
765 X509 *verifytlscert(SSL *ssl) {
769 if (SSL_get_verify_result(ssl) != X509_V_OK) {
770 debug(DBG_ERR, "verifytlscert: basic validation failed");
771 while ((error = ERR_get_error()))
772 debug(DBG_ERR, "verifytlscert: TLS: %s", ERR_error_string(error, NULL));
776 cert = SSL_get_peer_certificate(ssl);
778 debug(DBG_ERR, "verifytlscert: failed to obtain certificate");
782 int verifyconfcert(X509 *cert, struct clsrvconf *conf) {
784 uint8_t type = 0; /* 0 for DNS, AF_INET for IPv4, AF_INET6 for IPv6 */
785 struct in6_addr addr;
787 if (conf->certnamecheck && conf->prefixlen == 255) {
788 if (inet_pton(AF_INET, conf->host, &addr))
790 else if (inet_pton(AF_INET6, conf->host, &addr))
793 r = type ? subjectaltnameaddr(cert, type, &addr) : subjectaltnameregexp(cert, GEN_DNS, conf->host, NULL);
796 debug(DBG_WARN, "verifyconfcert: No subjectaltname matching %s %s", type ? "address" : "host", conf->host);
799 debug(DBG_DBG, "verifyconfcert: Found subjectaltname matching %s %s", type ? "address" : "host", conf->host);
801 if (!cnregexp(cert, conf->host, NULL)) {
802 debug(DBG_WARN, "verifyconfcert: cn not matching host %s", conf->host);
805 debug(DBG_DBG, "verifyconfcert: Found cn matching host %s", conf->host);
808 if (conf->certcnregex) {
809 if (cnregexp(cert, NULL, conf->certcnregex) < 1) {
810 debug(DBG_WARN, "verifyconfcert: CN not matching regex");
813 debug(DBG_DBG, "verifyconfcert: CN matching regex");
815 if (conf->certuriregex) {
816 if (subjectaltnameregexp(cert, GEN_URI, NULL, conf->certuriregex) < 1) {
817 debug(DBG_WARN, "verifyconfcert: subjectaltname URI not matching regex");
820 debug(DBG_DBG, "verifyconfcert: subjectaltname URI matching regex");
825 void tlsconnect(struct server *server, struct timeval *when, char *text) {
830 debug(DBG_DBG, "tlsconnect called from %s", text);
831 pthread_mutex_lock(&server->lock);
832 if (when && memcmp(&server->lastconnecttry, when, sizeof(struct timeval))) {
833 /* already reconnected, nothing to do */
834 debug(DBG_DBG, "tlsconnect(%s): seems already reconnected", text);
835 pthread_mutex_unlock(&server->lock);
839 debug(DBG_DBG, "tlsconnect %s", text);
842 gettimeofday(&now, NULL);
843 elapsed = now.tv_sec - server->lastconnecttry.tv_sec;
844 if (server->connectionok) {
845 server->connectionok = 0;
847 } else if (elapsed < 1)
849 else if (elapsed < 60) {
850 debug(DBG_INFO, "tlsconnect: sleeping %lds", elapsed);
852 } else if (elapsed < 100000) {
853 debug(DBG_INFO, "tlsconnect: sleeping %ds", 60);
856 server->lastconnecttry.tv_sec = now.tv_sec; /* no sleep at startup */
857 debug(DBG_WARN, "tlsconnect: trying to open TLS connection to %s port %s", server->conf->host, server->conf->port);
858 if (server->sock >= 0)
860 if ((server->sock = connecttcp(server->conf->addrinfo)) < 0) {
861 debug(DBG_ERR, "tlsconnect: connecttcp failed");
865 SSL_free(server->ssl);
866 server->ssl = SSL_new(server->conf->ssl_ctx);
867 SSL_set_fd(server->ssl, server->sock);
868 if (SSL_connect(server->ssl) <= 0)
870 cert = verifytlscert(server->ssl);
873 if (verifyconfcert(cert, server->conf)) {
879 debug(DBG_WARN, "tlsconnect: TLS connection to %s port %s up", server->conf->host, server->conf->port);
880 gettimeofday(&server->lastconnecttry, NULL);
881 pthread_mutex_unlock(&server->lock);
884 unsigned char *radtlsget(SSL *ssl) {
886 unsigned char buf[4], *rad;
889 for (total = 0; total < 4; total += cnt) {
890 cnt = SSL_read(ssl, buf + total, 4 - total);
892 debug(DBG_ERR, "radtlsget: connection lost");
893 if (SSL_get_error(ssl, cnt) == SSL_ERROR_ZERO_RETURN) {
894 /* remote end sent close_notify, send one back */
904 debug(DBG_ERR, "radtlsget: malloc failed");
909 for (; total < len; total += cnt) {
910 cnt = SSL_read(ssl, rad + total, len - total);
912 debug(DBG_ERR, "radtlsget: connection lost");
913 if (SSL_get_error(ssl, cnt) == SSL_ERROR_ZERO_RETURN) {
914 /* remote end sent close_notify, send one back */
926 debug(DBG_WARN, "radtlsget: packet smaller than minimum radius size");
929 debug(DBG_DBG, "radtlsget: got %d bytes", total);
933 int clientradputudp(struct server *server, unsigned char *rad) {
935 struct sockaddr_storage sa;
936 struct sockaddr *sap;
937 struct clsrvconf *conf = server->conf;
938 in_port_t *port = NULL;
942 if (*rad == RAD_Accounting_Request) {
943 sap = (struct sockaddr *)&sa;
944 memcpy(sap, conf->addrinfo->ai_addr, conf->addrinfo->ai_addrlen);
946 sap = conf->addrinfo->ai_addr;
948 switch (sap->sa_family) {
950 port = &((struct sockaddr_in *)sap)->sin_port;
953 port = &((struct sockaddr_in6 *)sap)->sin6_port;
959 if (*rad == RAD_Accounting_Request)
960 *port = htons(ntohs(*port) + 1);
962 if (sendto(server->sock, rad, len, 0, sap, conf->addrinfo->ai_addrlen) >= 0) {
963 debug(DBG_DBG, "clienradputudp: sent UDP of length %d to %s port %d", len, conf->host, ntohs(*port));
967 debug(DBG_WARN, "clientradputudp: send failed");
971 int clientradputtls(struct server *server, unsigned char *rad) {
975 struct timeval lastconnecttry;
976 struct clsrvconf *conf = server->conf;
979 lastconnecttry = server->lastconnecttry;
980 while ((cnt = SSL_write(server->ssl, rad, len)) <= 0) {
981 while ((error = ERR_get_error()))
982 debug(DBG_ERR, "clientradputtls: TLS: %s", ERR_error_string(error, NULL));
983 tlsconnect(server, &lastconnecttry, "clientradputtls");
984 lastconnecttry = server->lastconnecttry;
987 server->connectionok = 1;
988 debug(DBG_DBG, "clientradputtls: Sent %d bytes, Radius packet of length %d to TLS peer %s", cnt, len, conf->host);
992 int clientradput(struct server *server, unsigned char *rad) {
993 switch (server->conf->type) {
995 return clientradputudp(server, rad);
997 return clientradputtls(server, rad);
1002 int radsign(unsigned char *rad, unsigned char *sec) {
1003 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1004 static unsigned char first = 1;
1005 static EVP_MD_CTX mdctx;
1006 unsigned int md_len;
1009 pthread_mutex_lock(&lock);
1011 EVP_MD_CTX_init(&mdctx);
1015 result = (EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) &&
1016 EVP_DigestUpdate(&mdctx, rad, RADLEN(rad)) &&
1017 EVP_DigestUpdate(&mdctx, sec, strlen((char *)sec)) &&
1018 EVP_DigestFinal_ex(&mdctx, rad + 4, &md_len) &&
1020 pthread_mutex_unlock(&lock);
1024 int validauth(unsigned char *rad, unsigned char *reqauth, unsigned char *sec) {
1025 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1026 static unsigned char first = 1;
1027 static EVP_MD_CTX mdctx;
1028 unsigned char hash[EVP_MAX_MD_SIZE];
1032 pthread_mutex_lock(&lock);
1034 EVP_MD_CTX_init(&mdctx);
1040 result = (EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) &&
1041 EVP_DigestUpdate(&mdctx, rad, 4) &&
1042 EVP_DigestUpdate(&mdctx, reqauth, 16) &&
1043 (len <= 20 || EVP_DigestUpdate(&mdctx, rad + 20, len - 20)) &&
1044 EVP_DigestUpdate(&mdctx, sec, strlen((char *)sec)) &&
1045 EVP_DigestFinal_ex(&mdctx, hash, &len) &&
1047 !memcmp(hash, rad + 4, 16));
1048 pthread_mutex_unlock(&lock);
1052 int checkmessageauth(unsigned char *rad, uint8_t *authattr, char *secret) {
1053 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1054 static unsigned char first = 1;
1055 static HMAC_CTX hmacctx;
1056 unsigned int md_len;
1057 uint8_t auth[16], hash[EVP_MAX_MD_SIZE];
1059 pthread_mutex_lock(&lock);
1061 HMAC_CTX_init(&hmacctx);
1065 memcpy(auth, authattr, 16);
1066 memset(authattr, 0, 16);
1068 HMAC_Init_ex(&hmacctx, secret, strlen(secret), EVP_md5(), NULL);
1069 HMAC_Update(&hmacctx, rad, RADLEN(rad));
1070 HMAC_Final(&hmacctx, hash, &md_len);
1071 memcpy(authattr, auth, 16);
1073 debug(DBG_WARN, "message auth computation failed");
1074 pthread_mutex_unlock(&lock);
1078 if (memcmp(auth, hash, 16)) {
1079 debug(DBG_WARN, "message authenticator, wrong value");
1080 pthread_mutex_unlock(&lock);
1084 pthread_mutex_unlock(&lock);
1088 int createmessageauth(unsigned char *rad, unsigned char *authattrval, char *secret) {
1089 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1090 static unsigned char first = 1;
1091 static HMAC_CTX hmacctx;
1092 unsigned int md_len;
1097 pthread_mutex_lock(&lock);
1099 HMAC_CTX_init(&hmacctx);
1103 memset(authattrval, 0, 16);
1105 HMAC_Init_ex(&hmacctx, secret, strlen(secret), EVP_md5(), NULL);
1106 HMAC_Update(&hmacctx, rad, RADLEN(rad));
1107 HMAC_Final(&hmacctx, authattrval, &md_len);
1109 debug(DBG_WARN, "message auth computation failed");
1110 pthread_mutex_unlock(&lock);
1114 pthread_mutex_unlock(&lock);
1118 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
1119 while (length > 1) {
1120 if (ATTRTYPE(attrs) == type)
1122 length -= ATTRLEN(attrs);
1123 attrs += ATTRLEN(attrs);
1128 void freerqdata(struct request *rq) {
1129 if (rq->origusername)
1130 free(rq->origusername);
1135 void sendrq(struct server *to, struct request *rq) {
1139 pthread_mutex_lock(&to->newrq_mutex);
1140 /* might simplify if only try nextid, might be ok */
1141 for (i = to->nextid; i < MAX_REQUESTS; i++)
1142 if (!to->requests[i].buf)
1144 if (i == MAX_REQUESTS) {
1145 for (i = 0; i < to->nextid; i++)
1146 if (!to->requests[i].buf)
1148 if (i == to->nextid) {
1149 debug(DBG_WARN, "No room in queue, dropping request");
1151 pthread_mutex_unlock(&to->newrq_mutex);
1156 rq->buf[1] = (char)i;
1158 attr = attrget(rq->buf + 20, RADLEN(rq->buf) - 20, RAD_Attr_Message_Authenticator);
1159 if (attr && !createmessageauth(rq->buf, ATTRVAL(attr), to->conf->secret)) {
1161 pthread_mutex_unlock(&to->newrq_mutex);
1165 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->host);
1166 to->requests[i] = *rq;
1171 debug(DBG_DBG, "signalling client writer");
1172 pthread_cond_signal(&to->newrq_cond);
1174 pthread_mutex_unlock(&to->newrq_mutex);
1177 void sendreply(struct client *to, unsigned char *buf, struct sockaddr_storage *tosa) {
1178 struct reply *reply;
1181 if (!radsign(buf, (unsigned char *)to->conf->secret)) {
1183 debug(DBG_WARN, "sendreply: failed to sign message");
1187 reply = malloc(sizeof(struct reply));
1190 debug(DBG_ERR, "sendreply: malloc failed");
1193 memset(reply, 0, sizeof(struct reply));
1196 reply->tosa = *tosa;
1198 pthread_mutex_lock(&to->replyq->mutex);
1200 first = list_first(to->replyq->replies) == NULL;
1202 if (!list_push(to->replyq->replies, reply)) {
1203 pthread_mutex_unlock(&to->replyq->mutex);
1206 debug(DBG_ERR, "sendreply: malloc failed");
1211 debug(DBG_DBG, "signalling server writer");
1212 pthread_cond_signal(&to->replyq->cond);
1214 pthread_mutex_unlock(&to->replyq->mutex);
1217 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1218 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1219 static unsigned char first = 1;
1220 static EVP_MD_CTX mdctx;
1221 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1222 unsigned int md_len;
1223 uint8_t i, offset = 0, out[128];
1225 pthread_mutex_lock(&lock);
1227 EVP_MD_CTX_init(&mdctx);
1233 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1234 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1235 !EVP_DigestUpdate(&mdctx, input, 16) ||
1236 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1238 pthread_mutex_unlock(&lock);
1241 for (i = 0; i < 16; i++)
1242 out[offset + i] = hash[i] ^ in[offset + i];
1243 input = out + offset - 16;
1248 memcpy(in, out, len);
1249 pthread_mutex_unlock(&lock);
1253 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1254 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1255 static unsigned char first = 1;
1256 static EVP_MD_CTX mdctx;
1257 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1258 unsigned int md_len;
1259 uint8_t i, offset = 0, out[128];
1261 pthread_mutex_lock(&lock);
1263 EVP_MD_CTX_init(&mdctx);
1269 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1270 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1271 !EVP_DigestUpdate(&mdctx, input, 16) ||
1272 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1274 pthread_mutex_unlock(&lock);
1277 for (i = 0; i < 16; i++)
1278 out[offset + i] = hash[i] ^ in[offset + i];
1279 input = in + offset;
1284 memcpy(in, out, len);
1285 pthread_mutex_unlock(&lock);
1289 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1290 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1291 static unsigned char first = 1;
1292 static EVP_MD_CTX mdctx;
1293 unsigned char hash[EVP_MAX_MD_SIZE];
1294 unsigned int md_len;
1297 pthread_mutex_lock(&lock);
1299 EVP_MD_CTX_init(&mdctx);
1304 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
1305 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
1306 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
1309 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1310 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1311 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1312 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1313 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1314 pthread_mutex_unlock(&lock);
1319 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1322 for (i = 0; i < 16; i++)
1325 for (offset = 16; offset < len; offset += 16) {
1327 printf("text + offset - 16 c(%d): ", offset / 16);
1328 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1330 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1331 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1332 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1333 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1335 pthread_mutex_unlock(&lock);
1339 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1342 for (i = 0; i < 16; i++)
1343 text[offset + i] ^= hash[i];
1347 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
1350 pthread_mutex_unlock(&lock);
1354 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1355 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1356 static unsigned char first = 1;
1357 static EVP_MD_CTX mdctx;
1358 unsigned char hash[EVP_MAX_MD_SIZE];
1359 unsigned int md_len;
1363 pthread_mutex_lock(&lock);
1365 EVP_MD_CTX_init(&mdctx);
1370 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
1371 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
1372 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
1375 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1376 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1377 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1378 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1379 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1380 pthread_mutex_unlock(&lock);
1385 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1388 for (i = 0; i < 16; i++)
1389 plain[i] = text[i] ^ hash[i];
1391 for (offset = 16; offset < len; offset += 16) {
1393 printf("text + offset - 16 c(%d): ", offset / 16);
1394 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1396 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1397 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1398 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1399 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1401 pthread_mutex_unlock(&lock);
1405 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1408 for (i = 0; i < 16; i++)
1409 plain[offset + i] = text[offset + i] ^ hash[i];
1412 memcpy(text, plain, len);
1414 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
1417 pthread_mutex_unlock(&lock);
1421 struct realm *id2realm(char *id, uint8_t len) {
1422 struct list_node *entry;
1423 struct realm *realm;
1425 for (entry = list_first(realms); entry; entry = list_next(entry)) {
1426 realm = (struct realm *)entry->data;
1427 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
1428 debug(DBG_DBG, "found matching realm: %s", realm->name);
1435 int rqinqueue(struct server *to, struct client *from, uint8_t id, uint8_t code) {
1436 struct request *rq = to->requests, *end;
1438 pthread_mutex_lock(&to->newrq_mutex);
1439 for (end = rq + MAX_REQUESTS; rq < end; rq++)
1440 if (rq->buf && !rq->received && rq->origid == id && rq->from == from && *rq->buf == code)
1442 pthread_mutex_unlock(&to->newrq_mutex);
1447 int attrvalidate(unsigned char *attrs, int length) {
1448 while (length > 1) {
1449 if (ATTRLEN(attrs) < 2) {
1450 debug(DBG_WARN, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
1453 length -= ATTRLEN(attrs);
1455 debug(DBG_WARN, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
1458 attrs += ATTRLEN(attrs);
1461 debug(DBG_WARN, "attrvalidate: malformed packet? remaining byte after last attribute");
1465 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1466 if (len < 16 || len > 128 || len % 16) {
1467 debug(DBG_WARN, "pwdrecrypt: invalid password length");
1471 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
1472 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
1476 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
1478 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
1479 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
1485 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, unsigned char *oldauth, char *newauth) {
1488 if (!msmppdecrypt(msmpp + 2, len - 2, (unsigned char *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
1489 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
1492 if (!msmppencrypt(msmpp + 2, len - 2, (unsigned char *)newsecret, strlen(newsecret), (unsigned char *)newauth, msmpp)) {
1493 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
1499 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
1500 char *oldsecret, char *newsecret) {
1501 unsigned char *attr;
1503 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
1504 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
1505 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->origauth))
1511 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint8_t subattr) {
1515 for (; attrs[0]; attrs += 2)
1516 if (attrs[0] == vendor && attrs[1] == subattr)
1521 int dovendorrewrite(uint8_t *attrs, uint16_t length, uint32_t *removevendorattrs) {
1522 uint8_t alen, sublen, rmlen = 0;
1523 uint32_t vendor = *(uint32_t *)ATTRVAL(attrs);
1526 if (!removevendorattrs)
1529 while (*removevendorattrs && *removevendorattrs != vendor)
1530 removevendorattrs += 2;
1531 if (!*removevendorattrs)
1534 alen = ATTRLEN(attrs);
1536 if (findvendorsubattr(removevendorattrs, vendor, -1)) {
1537 /* remove entire vendor attribute */
1538 memmove(attrs, attrs + alen, length - alen);
1543 subattrs = ATTRVAL(attrs) + 4;
1545 if (!attrvalidate(subattrs, sublen)) {
1546 debug(DBG_WARN, "dovendorrewrite: vendor attribute validation failed, no rewrite");
1551 while (sublen > 1) {
1552 alen = ATTRLEN(subattrs);
1555 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
1556 memmove(subattrs, subattrs + alen, length);
1562 ATTRLEN(attrs) -= rmlen;
1566 void dorewrite(uint8_t *buf, struct rewrite *rewrite) {
1567 uint8_t *attrs, alen;
1568 uint16_t len, rmlen = 0;
1570 if (!rewrite || (!rewrite->removeattrs && !rewrite->removevendorattrs))
1573 len = RADLEN(buf) - 20;
1576 alen = ATTRLEN(attrs);
1578 if (rewrite->removeattrs && strchr((char *)rewrite->removeattrs, ATTRTYPE(attrs))) {
1579 memmove(attrs, attrs + alen, len);
1581 } else if (ATTRTYPE(attrs) == RAD_Attr_Vendor_Specific && rewrite->removevendorattrs)
1582 rmlen += dovendorrewrite(attrs, len, rewrite->removevendorattrs);
1587 ((uint16_t *)buf)[1] = htons(RADLEN(buf) - rmlen);
1590 /* returns a pointer to the resized attribute value */
1591 uint8_t *resizeattr(uint8_t **buf, uint8_t newvallen, uint8_t type) {
1592 uint8_t *attrs, *attr, vallen;
1596 len = RADLEN(*buf) - 20;
1599 attr = attrget(attrs, len, type);
1603 vallen = ATTRVALLEN(attr);
1604 if (vallen == newvallen)
1607 len += newvallen - vallen;
1608 if (newvallen > vallen) {
1609 new = realloc(*buf, len + 20);
1611 debug(DBG_ERR, "resizeattr: malloc failed");
1620 memmove(attr + 2 + newvallen, attr + 2 + vallen, len - (attr - attrs + newvallen));
1621 attr[1] = newvallen + 2;
1622 ((uint16_t *)*buf)[1] = htons(len + 20);
1626 int rewriteusername(struct request *rq, char *in) {
1627 size_t nmatch = 10, reslen = 0, start = 0;
1628 regmatch_t pmatch[10], *pfield;
1630 unsigned char *result;
1631 char *out = rq->from->conf->rewriteattrreplacement;
1633 if (regexec(rq->from->conf->rewriteattrregex, in, nmatch, pmatch, 0)) {
1634 debug(DBG_DBG, "rewriteattr: username not matching, no rewrite");
1638 rq->origusername = stringcopy(in, 0);
1639 if (!rq->origusername)
1642 for (i = start; out[i]; i++) {
1643 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1644 pfield = &pmatch[out[i + 1] - '0'];
1645 if (pfield->rm_so >= 0) {
1646 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1652 reslen += i - start;
1654 result = resizeattr(&rq->buf, reslen, RAD_Attr_User_Name);
1660 for (i = start; out[i]; i++) {
1661 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1662 pfield = &pmatch[out[i + 1] - '0'];
1663 if (pfield->rm_so >= 0) {
1664 memcpy(result + reslen, out + start, i - start);
1665 reslen += i - start;
1666 memcpy(result + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1667 reslen += pfield->rm_eo - pfield->rm_so;
1674 memcpy(result + reslen, out + start, i - start);
1675 reslen += i - start;
1676 memcpy(in, result, reslen);
1681 const char *radmsgtype2string(uint8_t code) {
1682 static const char *rad_msg_names[] = {
1683 "", "Access-Request", "Access-Accept", "Access-Reject",
1684 "Accounting-Request", "Accounting-Response", "", "",
1685 "", "", "", "Access-Challenge",
1686 "Status-Server", "Status-Client"
1688 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1691 void acclog(unsigned char *attrs, int length, char *host) {
1692 unsigned char *attr;
1695 attr = attrget(attrs, length, RAD_Attr_User_Name);
1697 debug(DBG_INFO, "acclog: accounting-request from %s without username attribute", host);
1700 memcpy(username, ATTRVAL(attr), ATTRVALLEN(attr));
1701 username[ATTRVALLEN(attr)] = '\0';
1702 debug(DBG_INFO, "acclog: accounting-request from %s with username: %s", host, username);
1705 void respondaccounting(struct request *rq) {
1706 unsigned char *resp;
1710 debug(DBG_ERR, "respondstatusserver: malloc failed");
1713 memcpy(resp, rq->buf, 20);
1714 resp[0] = RAD_Accounting_Response;
1717 debug(DBG_DBG, "respondaccounting: responding to %s", rq->from->conf->host);
1718 sendreply(rq->from, resp, rq->from->conf->type == 'U' ? &rq->fromsa : NULL);
1721 void respondstatusserver(struct request *rq) {
1722 unsigned char *resp;
1726 debug(DBG_ERR, "respondstatusserver: malloc failed");
1729 memcpy(resp, rq->buf, 20);
1730 resp[0] = RAD_Access_Accept;
1733 debug(DBG_DBG, "respondstatusserver: responding to %s", rq->from->conf->host);
1734 sendreply(rq->from, resp, rq->from->conf->type == 'U' ? &rq->fromsa : NULL);
1737 void respondreject(struct request *rq, char *message) {
1738 unsigned char *resp;
1741 if (message && *message)
1742 len += 2 + strlen(message);
1746 debug(DBG_ERR, "respondreject: malloc failed");
1749 memcpy(resp, rq->buf, 20);
1750 resp[0] = RAD_Access_Reject;
1751 *(uint16_t *)(resp + 2) = htons(len);
1752 if (message && *message) {
1753 resp[20] = RAD_Attr_Reply_Message;
1754 resp[21] = len - 20;
1755 memcpy(resp + 22, message, len - 22);
1757 sendreply(rq->from, resp, rq->from->conf->type == 'U' ? &rq->fromsa : NULL);
1760 struct server *chooseserver(struct list *srvconfs) {
1761 struct list_node *entry;
1762 struct server *server, *best = NULL, *first = NULL;
1764 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1765 server = ((struct clsrvconf *)entry->data)->servers;
1768 if (!server->connectionok)
1770 if (!server->loststatsrv)
1776 if (server->loststatsrv < best->loststatsrv)
1779 return best ? best : first;
1782 void radsrv(struct request *rq) {
1783 uint8_t code, id, *auth, *attrs, *attr;
1785 struct server *to = NULL;
1787 unsigned char newauth[16];
1788 struct realm *realm = NULL;
1790 code = *(uint8_t *)rq->buf;
1791 id = *(uint8_t *)(rq->buf + 1);
1792 len = RADLEN(rq->buf);
1793 auth = (uint8_t *)(rq->buf + 4);
1795 debug(DBG_DBG, "radsrv: code %d, id %d, length %d", code, id, len);
1797 if (code != RAD_Access_Request && code != RAD_Status_Server && code != RAD_Accounting_Request) {
1798 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1803 attrs = rq->buf + 20;
1805 if (!attrvalidate(attrs, len)) {
1806 debug(DBG_WARN, "radsrv: attribute validation failed, ignoring packet");
1810 attr = attrget(attrs, len, RAD_Attr_Message_Authenticator);
1811 if (attr && (ATTRVALLEN(attr) != 16 || !checkmessageauth(rq->buf, ATTRVAL(attr), rq->from->conf->secret))) {
1812 debug(DBG_WARN, "radsrv: message authentication failed");
1816 if (code == RAD_Status_Server) {
1817 respondstatusserver(rq);
1821 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1823 if (rq->from->conf->rewrite) {
1824 dorewrite(rq->buf, rq->from->conf->rewrite);
1825 len = RADLEN(rq->buf) - 20;
1828 attr = attrget(attrs, len, RAD_Attr_User_Name);
1830 if (code == RAD_Accounting_Request) {
1831 acclog(attrs, len, rq->from->conf->host);
1832 respondaccounting(rq);
1834 debug(DBG_WARN, "radsrv: ignoring access request, no username attribute");
1837 memcpy(username, ATTRVAL(attr), ATTRVALLEN(attr));
1838 username[ATTRVALLEN(attr)] = '\0';
1840 if (rq->from->conf->rewriteattrregex) {
1841 if (!rewriteusername(rq, username)) {
1842 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1845 len = RADLEN(rq->buf) - 20;
1846 auth = (uint8_t *)(rq->buf + 4);
1847 attrs = rq->buf + 20;
1850 if (rq->origusername)
1851 debug(DBG_DBG, "%s with username: %s (originally %s)", radmsgtype2string(code), username, rq->origusername);
1853 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(code), username);
1855 realm = id2realm(username, strlen(username));
1857 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1861 to = chooseserver(code == RAD_Access_Request ? realm->srvconfs : realm->accsrvconfs);
1863 if (realm->message && code == RAD_Access_Request) {
1864 debug(DBG_INFO, "radsrv: sending reject to %s for %s", rq->from->conf->host, username);
1865 respondreject(rq, realm->message);
1870 if (rqinqueue(to, rq->from, id, code)) {
1871 debug(DBG_INFO, "radsrv: already got %s from host %s with id %d, ignoring",
1872 radmsgtype2string(code), rq->from->conf->host, id);
1876 if (!RAND_bytes(newauth, 16)) {
1877 debug(DBG_WARN, "radsrv: failed to generate random auth");
1882 printfchars(NULL, "auth", "%02x ", auth, 16);
1885 attr = attrget(attrs, len, RAD_Attr_User_Password);
1887 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", ATTRVALLEN(attr));
1888 if (!pwdrecrypt(ATTRVAL(attr), ATTRVALLEN(attr), rq->from->conf->secret, to->conf->secret, auth, newauth))
1892 attr = attrget(attrs, len, RAD_Attr_Tunnel_Password);
1894 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", ATTRVALLEN(attr));
1895 if (!pwdrecrypt(ATTRVAL(attr), ATTRVALLEN(attr), rq->from->conf->secret, to->conf->secret, auth, newauth))
1900 memcpy(rq->origauth, auth, 16);
1901 memcpy(auth, newauth, 16);
1909 int replyh(struct server *server, unsigned char *buf) {
1910 struct client *from;
1913 unsigned char *messageauth, *subattrs, *attrs, *attr, *username;
1914 struct sockaddr_storage fromsa;
1917 server->connectionok = 1;
1918 server->loststatsrv = 0;
1920 i = buf[1]; /* i is the id */
1922 if (*buf != RAD_Access_Accept && *buf != RAD_Access_Reject && *buf != RAD_Access_Challenge
1923 && *buf != RAD_Accounting_Response) {
1924 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(*buf));
1927 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(*buf), i);
1929 rq = server->requests + i;
1931 pthread_mutex_lock(&server->newrq_mutex);
1932 if (!rq->buf || !rq->tries) {
1933 pthread_mutex_unlock(&server->newrq_mutex);
1934 debug(DBG_INFO, "replyh: no matching request sent with this id, ignoring reply");
1939 pthread_mutex_unlock(&server->newrq_mutex);
1940 debug(DBG_INFO, "replyh: already received, ignoring reply");
1944 if (!validauth(buf, rq->buf + 4, (unsigned char *)server->conf->secret)) {
1945 pthread_mutex_unlock(&server->newrq_mutex);
1946 debug(DBG_WARN, "replyh: invalid auth, ignoring reply");
1950 len = RADLEN(buf) - 20;
1953 if (!attrvalidate(attrs, len)) {
1954 pthread_mutex_unlock(&server->newrq_mutex);
1955 debug(DBG_WARN, "replyh: attribute validation failed, ignoring reply");
1959 /* Message Authenticator */
1960 messageauth = attrget(attrs, len, RAD_Attr_Message_Authenticator);
1962 if (ATTRVALLEN(messageauth) != 16) {
1963 pthread_mutex_unlock(&server->newrq_mutex);
1964 debug(DBG_WARN, "replyh: illegal message auth attribute length, ignoring reply");
1967 memcpy(tmp, buf + 4, 16);
1968 memcpy(buf + 4, rq->buf + 4, 16);
1969 if (!checkmessageauth(buf, ATTRVAL(messageauth), server->conf->secret)) {
1970 pthread_mutex_unlock(&server->newrq_mutex);
1971 debug(DBG_WARN, "replyh: message authentication failed, ignoring reply");
1974 memcpy(buf + 4, tmp, 16);
1975 debug(DBG_DBG, "replyh: message auth ok");
1978 if (*rq->buf == RAD_Status_Server) {
1980 pthread_mutex_unlock(&server->newrq_mutex);
1981 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->host);
1987 pthread_mutex_unlock(&server->newrq_mutex);
1988 debug(DBG_INFO, "replyh: client gone, ignoring reply");
1992 if (server->conf->rewrite) {
1993 dorewrite(buf, server->conf->rewrite);
1994 len = RADLEN(buf) - 20;
1998 for (attr = attrs; (attr = attrget(attr, len - (attr - attrs), RAD_Attr_Vendor_Specific)); attr += ATTRLEN(attr)) {
1999 if (ATTRVALLEN(attr) <= 4)
2002 if (attr[2] != 0 || attr[3] != 0 || attr[4] != 1 || attr[5] != 55) /* 311 == MS */
2005 sublen = ATTRVALLEN(attr) - 4;
2006 subattrs = ATTRVAL(attr) + 4;
2007 if (!attrvalidate(subattrs, sublen) ||
2008 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
2009 rq, server->conf->secret, from->conf->secret) ||
2010 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
2011 rq, server->conf->secret, from->conf->secret))
2015 pthread_mutex_unlock(&server->newrq_mutex);
2016 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
2020 if (*buf == RAD_Access_Accept || *buf == RAD_Access_Reject || *buf == RAD_Accounting_Response) {
2021 attr = attrget(rq->buf + 20, RADLEN(rq->buf) - 20, RAD_Attr_User_Name);
2023 memcpy(tmp, ATTRVAL(attr), ATTRVALLEN(attr));
2024 tmp[ATTRVALLEN(attr)] = '\0';
2025 if (rq->origusername)
2026 debug(DBG_INFO, "%s for %s (originally %s) from %s", radmsgtype2string(*buf), tmp,
2027 rq->origusername, server->conf->host);
2029 debug(DBG_INFO, "%s for %s from %s", radmsgtype2string(*buf), tmp, server->conf->host);
2033 buf[1] = (char)rq->origid;
2034 memcpy(buf + 4, rq->origauth, 16);
2036 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
2039 if (rq->origusername) {
2040 username = resizeattr(&buf, strlen(rq->origusername), RAD_Attr_User_Name);
2042 pthread_mutex_unlock(&server->newrq_mutex);
2043 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
2046 memcpy(username, rq->origusername, strlen(rq->origusername));
2047 len = RADLEN(buf) - 20;
2050 messageauth = attrget(attrs, len, RAD_Attr_Message_Authenticator);
2054 if (!createmessageauth(buf, ATTRVAL(messageauth), from->conf->secret)) {
2055 pthread_mutex_unlock(&server->newrq_mutex);
2056 debug(DBG_WARN, "replyh: failed to create authenticator, malloc failed?, ignoring reply");
2059 debug(DBG_DBG, "replyh: computed messageauthattr");
2062 if (from->conf->type == 'U')
2063 fromsa = rq->fromsa;
2064 /* once we set received = 1, rq may be reused */
2067 debug(DBG_INFO, "replyh: passing reply to client %s", from->conf->name);
2068 sendreply(from, buf, from->conf->type == 'U' ? &fromsa : NULL);
2069 pthread_mutex_unlock(&server->newrq_mutex);
2073 void *udpclientrd(void *arg) {
2074 struct server *server;
2076 int *s = (int *)arg;
2080 buf = radudpget(*s, NULL, &server, NULL);
2081 if (!replyh(server, buf))
2086 void *tlsclientrd(void *arg) {
2087 struct server *server = (struct server *)arg;
2089 struct timeval lastconnecttry;
2092 /* yes, lastconnecttry is really necessary */
2093 lastconnecttry = server->lastconnecttry;
2094 buf = radtlsget(server->ssl);
2096 tlsconnect(server, &lastconnecttry, "clientrd");
2100 if (!replyh(server, buf))
2105 void *clientwr(void *arg) {
2106 struct server *server = (struct server *)arg;
2108 pthread_t tlsclientrdth;
2111 struct timeval now, lastsend;
2112 struct timespec timeout;
2113 struct request statsrvrq;
2114 unsigned char statsrvbuf[38];
2116 memset(&timeout, 0, sizeof(struct timespec));
2118 if (server->conf->statusserver) {
2119 memset(&statsrvrq, 0, sizeof(struct request));
2120 memset(statsrvbuf, 0, sizeof(statsrvbuf));
2121 statsrvbuf[0] = RAD_Status_Server;
2123 statsrvbuf[20] = RAD_Attr_Message_Authenticator;
2124 statsrvbuf[21] = 18;
2125 gettimeofday(&lastsend, NULL);
2128 if (server->conf->type == 'U') {
2129 server->connectionok = 1;
2131 tlsconnect(server, NULL, "new client");
2132 server->connectionok = 1;
2133 if (pthread_create(&tlsclientrdth, NULL, tlsclientrd, (void *)server))
2134 debugx(1, DBG_ERR, "clientwr: pthread_create failed");
2138 pthread_mutex_lock(&server->newrq_mutex);
2139 if (!server->newrq) {
2140 gettimeofday(&now, NULL);
2141 if (server->conf->statusserver) {
2142 /* random 0-7 seconds */
2143 RAND_bytes(&rnd, 1);
2145 if (!timeout.tv_sec || timeout.tv_sec > lastsend.tv_sec + STATUS_SERVER_PERIOD + rnd)
2146 timeout.tv_sec = lastsend.tv_sec + STATUS_SERVER_PERIOD + rnd;
2148 if (timeout.tv_sec) {
2149 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
2150 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
2153 debug(DBG_DBG, "clientwr: waiting for new request");
2154 pthread_cond_wait(&server->newrq_cond, &server->newrq_mutex);
2157 if (server->newrq) {
2158 debug(DBG_DBG, "clientwr: got new request");
2161 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
2162 pthread_mutex_unlock(&server->newrq_mutex);
2164 for (i = 0; i < MAX_REQUESTS; i++) {
2165 pthread_mutex_lock(&server->newrq_mutex);
2166 while (i < MAX_REQUESTS && !server->requests[i].buf)
2168 if (i == MAX_REQUESTS) {
2169 pthread_mutex_unlock(&server->newrq_mutex);
2172 rq = server->requests + i;
2175 debug(DBG_DBG, "clientwr: packet %d in queue is marked as received", i);
2177 debug(DBG_DBG, "clientwr: freeing received packet %d from queue", i);
2179 /* setting this to NULL means that it can be reused */
2182 pthread_mutex_unlock(&server->newrq_mutex);
2186 gettimeofday(&now, NULL);
2187 if (now.tv_sec < rq->expiry.tv_sec) {
2188 if (!timeout.tv_sec || rq->expiry.tv_sec < timeout.tv_sec)
2189 timeout.tv_sec = rq->expiry.tv_sec;
2190 pthread_mutex_unlock(&server->newrq_mutex);
2194 if (rq->tries == (*rq->buf == RAD_Status_Server || server->conf->type == 'T'
2195 ? 1 : REQUEST_RETRIES)) {
2196 debug(DBG_DBG, "clientwr: removing expired packet from queue");
2197 if (*rq->buf == RAD_Status_Server) {
2198 debug(DBG_WARN, "clientwr: no status server response, %s dead?", server->conf->host);
2199 if (server->loststatsrv < 255)
2200 server->loststatsrv++;
2203 /* setting this to NULL means that it can be reused */
2205 pthread_mutex_unlock(&server->newrq_mutex);
2208 pthread_mutex_unlock(&server->newrq_mutex);
2210 rq->expiry.tv_sec = now.tv_sec +
2211 (*rq->buf == RAD_Status_Server || server->conf->type == 'T'
2212 ? REQUEST_EXPIRY : REQUEST_EXPIRY / REQUEST_RETRIES);
2213 if (!timeout.tv_sec || rq->expiry.tv_sec < timeout.tv_sec)
2214 timeout.tv_sec = rq->expiry.tv_sec;
2216 clientradput(server, server->requests[i].buf);
2217 gettimeofday(&lastsend, NULL);
2219 if (server->conf->statusserver) {
2220 gettimeofday(&now, NULL);
2221 if (now.tv_sec - lastsend.tv_sec >= STATUS_SERVER_PERIOD) {
2222 if (!RAND_bytes(statsrvbuf + 4, 16)) {
2223 debug(DBG_WARN, "clientwr: failed to generate random auth");
2226 statsrvrq.buf = malloc(sizeof(statsrvbuf));
2227 if (!statsrvrq.buf) {
2228 debug(DBG_ERR, "clientwr: malloc failed");
2231 memcpy(statsrvrq.buf, statsrvbuf, sizeof(statsrvbuf));
2232 debug(DBG_DBG, "clientwr: sending status server to %s", server->conf->host);
2233 lastsend.tv_sec = now.tv_sec;
2234 sendrq(server, &statsrvrq);
2240 void *udpserverwr(void *arg) {
2241 struct replyq *replyq = udp_server_replyq;
2242 struct reply *reply;
2245 pthread_mutex_lock(&replyq->mutex);
2246 while (!(reply = (struct reply *)list_shift(replyq->replies))) {
2247 debug(DBG_DBG, "udp server writer, waiting for signal");
2248 pthread_cond_wait(&replyq->cond, &replyq->mutex);
2249 debug(DBG_DBG, "udp server writer, got signal");
2251 pthread_mutex_unlock(&replyq->mutex);
2253 if (sendto(udp_server_sock, reply->buf, RADLEN(reply->buf), 0,
2254 (struct sockaddr *)&reply->tosa, SOCKADDR_SIZE(reply->tosa)) < 0)
2255 debug(DBG_WARN, "sendudp: send failed");
2261 void *udpserverrd(void *arg) {
2263 pthread_t udpserverwrth;
2264 struct clsrvconf *listenres;
2266 listenres = resolve_hostport('U', options.listenudp, DEFAULT_UDP_PORT);
2267 if ((udp_server_sock = bindtoaddr(listenres->addrinfo, AF_UNSPEC, 1, 0)) < 0)
2268 debugx(1, DBG_ERR, "udpserverrd: socket/bind failed");
2270 debug(DBG_WARN, "udpserverrd: listening for UDP on %s:%s",
2271 listenres->host ? listenres->host : "*", listenres->port);
2272 freeclsrvres(listenres);
2274 if (pthread_create(&udpserverwrth, NULL, udpserverwr, NULL))
2275 debugx(1, DBG_ERR, "pthread_create failed");
2278 memset(&rq, 0, sizeof(struct request));
2279 rq.buf = radudpget(udp_server_sock, &rq.from, NULL, &rq.fromsa);
2284 void *udpaccserverrd(void *arg) {
2286 struct clsrvconf *listenres;
2288 listenres = resolve_hostport('U', options.listenaccudp, DEFAULT_UDP_PORT);
2289 if ((udp_accserver_sock = bindtoaddr(listenres->addrinfo, AF_UNSPEC, 1, 0)) < 0)
2290 debugx(1, DBG_ERR, "udpserverrd: socket/bind failed");
2292 debug(DBG_WARN, "udpaccserverrd: listening for UDP on %s:%s",
2293 listenres->host ? listenres->host : "*", listenres->port);
2294 freeclsrvres(listenres);
2297 memset(&rq, 0, sizeof(struct request));
2298 rq.buf = radudpget(udp_accserver_sock, &rq.from, NULL, &rq.fromsa);
2299 if (*(uint8_t *)rq.buf == RAD_Accounting_Request) {
2303 debug(DBG_INFO, "udpaccserverrd: got something other than accounting-request, ignoring");
2308 void *tlsserverwr(void *arg) {
2310 unsigned long error;
2311 struct client *client = (struct client *)arg;
2312 struct replyq *replyq;
2313 struct reply *reply;
2315 debug(DBG_DBG, "tlsserverwr starting for %s", client->conf->host);
2316 replyq = client->replyq;
2318 pthread_mutex_lock(&replyq->mutex);
2319 while (!list_first(replyq->replies)) {
2321 debug(DBG_DBG, "tls server writer, waiting for signal");
2322 pthread_cond_wait(&replyq->cond, &replyq->mutex);
2323 debug(DBG_DBG, "tls server writer, got signal");
2326 /* ssl might have changed while waiting */
2327 pthread_mutex_unlock(&replyq->mutex);
2328 debug(DBG_DBG, "tlsserverwr: exiting as requested");
2332 reply = (struct reply *)list_shift(replyq->replies);
2333 pthread_mutex_unlock(&replyq->mutex);
2334 cnt = SSL_write(client->ssl, reply->buf, RADLEN(reply->buf));
2336 debug(DBG_DBG, "tlsserverwr: Sent %d bytes, Radius packet of length %d",
2337 cnt, RADLEN(reply->buf));
2339 while ((error = ERR_get_error()))
2340 debug(DBG_ERR, "tlsserverwr: SSL: %s", ERR_error_string(error, NULL));
2346 void tlsserverrd(struct client *client) {
2348 pthread_t tlsserverwrth;
2350 debug(DBG_DBG, "tlsserverrd starting for %s", client->conf->host);
2352 if (pthread_create(&tlsserverwrth, NULL, tlsserverwr, (void *)client)) {
2353 debug(DBG_ERR, "tlsserverrd: pthread_create failed");
2358 memset(&rq, 0, sizeof(struct request));
2359 rq.buf = radtlsget(client->ssl);
2362 debug(DBG_DBG, "tlsserverrd: got Radius message from %s", client->conf->host);
2367 debug(DBG_ERR, "tlsserverrd: connection lost");
2368 /* stop writer by setting ssl to NULL and give signal in case waiting for data */
2370 pthread_mutex_lock(&client->replyq->mutex);
2371 pthread_cond_signal(&client->replyq->cond);
2372 pthread_mutex_unlock(&client->replyq->mutex);
2373 debug(DBG_DBG, "tlsserverrd: waiting for writer to end");
2374 pthread_join(tlsserverwrth, NULL);
2375 removeclientrqs(client);
2376 debug(DBG_DBG, "tlsserverrd for %s exiting", client->conf->host);
2379 void *tlsservernew(void *arg) {
2380 unsigned long error;
2382 struct client *client = (struct client *)arg;
2386 debug(DBG_DBG, "tlsservernew starting for %s", client->conf->host);
2389 if (SSL_accept(ssl) <= 0) {
2390 while ((error = ERR_get_error()))
2391 debug(DBG_ERR, "tlsservernew: SSL: %s", ERR_error_string(error, NULL));
2392 debug(DBG_ERR, "SSL_accept failed");
2396 cert = verifytlscert(ssl);
2399 if (!verifyconfcert(cert, client->conf)) {
2404 tlsserverrd(client);
2407 s = SSL_get_fd(ssl);
2409 shutdown(s, SHUT_RDWR);
2411 removeclient(client);
2412 debug(DBG_DBG, "tlsservernew thread for %s exiting", client->conf->host);
2416 /***********************************************
2417 * new tls server code
2418 ***********************************************/
2419 void *tlsservernew2(void *arg) {
2421 struct sockaddr_storage from;
2422 size_t fromlen = sizeof(from);
2423 struct clsrvconf *conf;
2424 struct list_node *cur = NULL;
2427 unsigned long error;
2428 struct client *client;
2431 if (getpeername(s, (struct sockaddr *)&from, &fromlen)) {
2432 debug(DBG_DBG, "tlsserverrd: getpeername failed, exiting");
2435 debug(DBG_WARN, "incoming TLS connection from %s", addr2string((struct sockaddr *)&from, fromlen));
2437 conf = find_conf('T', (struct sockaddr *)&from, clconfs, &cur);
2439 ssl = SSL_new(conf->ssl_ctx);
2442 if (SSL_accept(ssl) <= 0) {
2443 while ((error = ERR_get_error()))
2444 debug(DBG_ERR, "tlsserverrd: SSL: %s", ERR_error_string(error, NULL));
2445 debug(DBG_ERR, "SSL_accept failed");
2448 cert = verifytlscert(ssl);
2454 if (verifyconfcert(cert, conf)) {
2456 client = addclient(conf);
2459 tlsserverrd(client);
2460 removeclient(client);
2462 debug(DBG_WARN, "Failed to create new client instance");
2465 conf = find_conf('T', (struct sockaddr *)&from, clconfs, &cur);
2467 debug(DBG_WARN, "ignoring request, no matching TLS client");
2473 shutdown(s, SHUT_RDWR);
2478 int tlslistener2() {
2479 pthread_t tlsserverth;
2481 struct sockaddr_storage from;
2482 size_t fromlen = sizeof(from);
2483 struct clsrvconf *listenres;
2485 listenres = resolve_hostport('T', options.listentcp, DEFAULT_TLS_PORT);
2486 if ((s = bindtoaddr(listenres->addrinfo, AF_UNSPEC, 1, 0)) < 0)
2487 debugx(1, DBG_ERR, "tlslistener: socket/bind failed");
2489 debug(DBG_WARN, "listening for incoming TCP on %s:%s", listenres->host ? listenres->host : "*", listenres->port);
2490 freeclsrvres(listenres);
2494 snew = accept(s, (struct sockaddr *)&from, &fromlen);
2496 debug(DBG_WARN, "accept failed");
2499 if (pthread_create(&tlsserverth, NULL, tlsservernew2, (void *)&snew)) {
2500 debug(DBG_ERR, "tlslistener: pthread_create failed");
2501 shutdown(snew, SHUT_RDWR);
2505 pthread_detach(tlsserverth);
2510 /***********************************************
2511 * end of new tls listening code
2512 ***********************************************/
2515 pthread_t tlsserverth;
2517 struct sockaddr_storage from;
2518 size_t fromlen = sizeof(from);
2519 struct clsrvconf *conf;
2520 struct client *client;
2521 struct clsrvconf *listenres;
2523 listenres = resolve_hostport('T', options.listentcp, DEFAULT_TLS_PORT);
2524 if ((s = bindtoaddr(listenres->addrinfo, AF_UNSPEC, 1, 0)) < 0)
2525 debugx(1, DBG_ERR, "tlslistener: socket/bind failed");
2528 debug(DBG_WARN, "listening for incoming TCP on %s:%s", listenres->host ? listenres->host : "*", listenres->port);
2532 snew = accept(s, (struct sockaddr *)&from, &fromlen);
2534 debug(DBG_WARN, "accept failed");
2537 debug(DBG_WARN, "incoming TLS connection from %s", addr2string((struct sockaddr *)&from, fromlen));
2539 conf = find_conf('T', (struct sockaddr *)&from, clconfs, NULL);
2541 debug(DBG_WARN, "ignoring request, not a known TLS client");
2542 shutdown(snew, SHUT_RDWR);
2547 client = addclient(conf);
2549 debug(DBG_WARN, "Failed to create new client instance");
2550 shutdown(snew, SHUT_RDWR);
2555 client->ssl = SSL_new(client->conf->ssl_ctx);
2556 SSL_set_fd(client->ssl, snew);
2557 if (pthread_create(&tlsserverth, NULL, tlsservernew, (void *)client)) {
2558 debug(DBG_ERR, "tlslistener: pthread_create failed");
2559 SSL_free(client->ssl);
2560 removeclient(client);
2561 shutdown(snew, SHUT_RDWR);
2565 pthread_detach(tlsserverth);
2570 void tlsadd(char *value, char *cacertfile, char *cacertpath, char *certfile, char *certkeyfile, char *certkeypwd) {
2573 STACK_OF(X509_NAME) *calist;
2575 unsigned long error;
2577 if (!certfile || !certkeyfile)
2578 debugx(1, DBG_ERR, "TLSCertificateFile and TLSCertificateKeyFile must be specified in TLS context %s", value);
2580 if (!cacertfile && !cacertpath)
2581 debugx(1, DBG_ERR, "CA Certificate file or path need to be specified in TLS context %s", value);
2584 ssl_locks = malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
2585 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
2586 for (i = 0; i < CRYPTO_num_locks(); i++) {
2587 ssl_lock_count[i] = 0;
2588 pthread_mutex_init(&ssl_locks[i], NULL);
2590 CRYPTO_set_id_callback(ssl_thread_id);
2591 CRYPTO_set_locking_callback(ssl_locking_callback);
2593 SSL_load_error_strings();
2596 while (!RAND_status()) {
2597 time_t t = time(NULL);
2598 pid_t pid = getpid();
2599 RAND_seed((unsigned char *)&t, sizeof(time_t));
2600 RAND_seed((unsigned char *)&pid, sizeof(pid));
2603 ctx = SSL_CTX_new(TLSv1_method());
2605 SSL_CTX_set_default_passwd_cb_userdata(ctx, certkeypwd);
2606 SSL_CTX_set_default_passwd_cb(ctx, pem_passwd_cb);
2608 if (!SSL_CTX_use_certificate_chain_file(ctx, certfile) ||
2609 !SSL_CTX_use_PrivateKey_file(ctx, certkeyfile, SSL_FILETYPE_PEM) ||
2610 !SSL_CTX_check_private_key(ctx) ||
2611 !SSL_CTX_load_verify_locations(ctx, cacertfile, cacertpath)) {
2612 while ((error = ERR_get_error()))
2613 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2614 debugx(1, DBG_ERR, "Error initialising SSL/TLS in TLS context %s", value);
2617 calist = cacertfile ? SSL_load_client_CA_file(cacertfile) : NULL;
2618 if (!cacertfile || calist) {
2621 calist = sk_X509_NAME_new_null();
2622 if (!SSL_add_dir_cert_subjects_to_stack(calist, cacertpath)) {
2623 sk_X509_NAME_free(calist);
2629 while ((error = ERR_get_error()))
2630 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2631 debugx(1, DBG_ERR, "Error adding CA subjects in TLS context %s", value);
2633 SSL_CTX_set_client_CA_list(ctx, calist);
2635 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
2636 SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
2638 new = malloc(sizeof(struct tls));
2639 if (!new || !list_push(tlsconfs, new))
2640 debugx(1, DBG_ERR, "malloc failed");
2642 memset(new, 0, sizeof(struct tls));
2643 new->name = stringcopy(value, 0);
2645 debugx(1, DBG_ERR, "malloc failed");
2648 debug(DBG_DBG, "tlsadd: added TLS context %s", value);
2652 struct list_node *entry;
2655 for (entry = list_first(tlsconfs); entry; entry = list_next(entry)) {
2656 t = (struct tls *)entry->data;
2660 SSL_CTX_free(t->ctx);
2662 list_destroy(tlsconfs);
2666 SSL_CTX *tlsgetctx(char *alt1, char *alt2) {
2667 struct list_node *entry;
2668 struct tls *t, *t1 = NULL, *t2 = NULL;
2670 for (entry = list_first(tlsconfs); entry; entry = list_next(entry)) {
2671 t = (struct tls *)entry->data;
2672 if (!strcasecmp(t->name, alt1)) {
2676 if (!t2 && alt2 && !strcasecmp(t->name, alt2))
2687 struct list *addsrvconfs(char *value, char **names) {
2688 struct list *conflist;
2690 struct list_node *entry;
2691 struct clsrvconf *conf;
2693 if (!names || !*names)
2696 conflist = list_create();
2698 debugx(1, DBG_ERR, "malloc failed");
2700 for (n = 0; names[n]; n++) {
2701 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2702 conf = (struct clsrvconf *)entry->data;
2703 if (!strcasecmp(names[n], conf->name))
2707 debugx(1, DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
2709 if (!list_push(conflist, conf))
2710 debugx(1, DBG_ERR, "malloc failed");
2711 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2717 void addrealm(char *value, char **servers, char **accservers, char *message) {
2719 struct realm *realm;
2720 char *s, *regex = NULL;
2722 if (*value == '/') {
2723 /* regexp, remove optional trailing / if present */
2724 if (value[strlen(value) - 1] == '/')
2725 value[strlen(value) - 1] = '\0';
2727 /* not a regexp, let us make it one */
2728 if (*value == '*' && !value[1])
2729 regex = stringcopy(".*", 0);
2731 for (n = 0, s = value; *s;)
2734 regex = malloc(strlen(value) + n + 3);
2737 for (n = 1, s = value; *s; s++) {
2747 debugx(1, DBG_ERR, "malloc failed");
2748 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2751 realm = malloc(sizeof(struct realm));
2753 debugx(1, DBG_ERR, "malloc failed");
2755 memset(realm, 0, sizeof(struct realm));
2756 realm->name = stringcopy(value, 0);
2758 debugx(1, DBG_ERR, "malloc failed");
2759 if (message && strlen(message) > 253)
2760 debugx(1, DBG_ERR, "ReplyMessage can be at most 253 bytes");
2761 realm->message = message;
2763 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_ICASE | REG_NOSUB))
2764 debugx(1, DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2768 realm->srvconfs = addsrvconfs(value, servers);
2769 realm->accsrvconfs = addsrvconfs(value, accservers);
2771 if (!list_push(realms, realm))
2772 debugx(1, DBG_ERR, "malloc failed");
2773 debug(DBG_DBG, "addrealm: added realm %s", value);
2776 int addmatchcertattr(struct clsrvconf *conf, char *matchcertattr) {
2780 if (!strncasecmp(matchcertattr, "CN:/", 4)) {
2781 r = &conf->certcnregex;
2782 v = matchcertattr + 4;
2783 } else if (!strncasecmp(matchcertattr, "SubjectAltName:URI:/", 20)) {
2784 r = &conf->certuriregex;
2785 v = matchcertattr + 20;
2790 /* regexp, remove optional trailing / if present */
2791 if (v[strlen(v) - 1] == '/')
2792 v[strlen(v) - 1] = '\0';
2796 *r = malloc(sizeof(regex_t));
2798 debug(DBG_ERR, "malloc failed");
2801 if (regcomp(*r, v, REG_ICASE | REG_NOSUB)) {
2804 debug(DBG_ERR, "failed to compile regular expression %s", v);
2810 int addrewriteattr(struct clsrvconf *conf, char *rewriteattr) {
2813 v = rewriteattr + 11;
2814 if (strncasecmp(rewriteattr, "User-Name:/", 11) || !*v)
2816 /* regexp, remove optional trailing / if present */
2817 if (v[strlen(v) - 1] == '/')
2818 v[strlen(v) - 1] = '\0';
2826 conf->rewriteattrregex = malloc(sizeof(regex_t));
2827 if (!conf->rewriteattrregex) {
2828 debug(DBG_ERR, "malloc failed");
2832 conf->rewriteattrreplacement = stringcopy(w, 0);
2833 if (!conf->rewriteattrreplacement) {
2834 free(conf->rewriteattrregex);
2835 conf->rewriteattrregex = NULL;
2839 if (regcomp(conf->rewriteattrregex, v, REG_ICASE | REG_EXTENDED)) {
2840 free(conf->rewriteattrregex);
2841 conf->rewriteattrregex = NULL;
2842 free(conf->rewriteattrreplacement);
2843 conf->rewriteattrreplacement = NULL;
2844 debug(DBG_ERR, "failed to compile regular expression %s", v);
2851 /* should accept both names and numeric values, only numeric right now */
2852 uint8_t attrname2val(char *attrname) {
2855 val = atoi(attrname);
2856 return val > 0 && val < 256 ? val : 0;
2859 /* should accept both names and numeric values, only numeric right now */
2860 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2863 *vendor = atoi(attrname);
2864 s = strchr(attrname, ':');
2869 *type = atoi(s + 1);
2870 return *type >= 0 && *type < 256;
2873 void rewritefree() {
2874 struct list_node *entry;
2875 struct rewriteconf *r;
2877 for (entry = list_first(rewriteconfs); entry; entry = list_next(entry)) {
2878 r = (struct rewriteconf *)entry->data;
2884 list_destroy(rewriteconfs);
2885 rewriteconfs = NULL;
2888 struct rewrite *getrewrite(char *alt1, char *alt2) {
2889 struct list_node *entry;
2890 struct rewriteconf *r, *r1 = NULL, *r2 = NULL;
2892 for (entry = list_first(rewriteconfs); entry; entry = list_next(entry)) {
2893 r = (struct rewriteconf *)entry->data;
2894 if (!strcasecmp(r->name, alt1)) {
2898 if (!r2 && alt2 && !strcasecmp(r->name, alt2))
2909 void addrewrite(char *value, char **attrs, char **vattrs) {
2910 struct rewriteconf *new;
2911 struct rewrite *rewrite = NULL;
2914 uint32_t *p, *va = NULL;
2918 for (; attrs[n]; n++);
2919 a = malloc((n + 1) * sizeof(uint8_t));
2921 debugx(1, DBG_ERR, "malloc failed");
2923 for (i = 0; i < n; i++)
2924 if (!(a[i] = attrname2val(attrs[i])))
2925 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", attrs[i]);
2931 for (; vattrs[n]; n++);
2932 va = malloc((2 * n + 1) * sizeof(uint32_t));
2934 debugx(1, DBG_ERR, "malloc failed");
2936 for (p = va, i = 0; i < n; i++, p += 2)
2937 if (!vattrname2val(vattrs[i], p, p + 1))
2938 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", vattrs[i]);
2943 rewrite = malloc(sizeof(struct rewrite));
2945 debugx(1, DBG_ERR, "malloc failed");
2946 rewrite->removeattrs = a;
2947 rewrite->removevendorattrs = va;
2950 new = malloc(sizeof(struct rewriteconf));
2951 if (!new || !list_push(rewriteconfs, new))
2952 debugx(1, DBG_ERR, "malloc failed");
2954 memset(new, 0, sizeof(struct rewriteconf));
2955 new->name = stringcopy(value, 0);
2957 debugx(1, DBG_ERR, "malloc failed");
2959 new->rewrite = rewrite;
2960 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2963 void confclient_cb(struct gconffile **cf, char *block, char *opt, char *val) {
2964 char *type = NULL, *tls = NULL, *matchcertattr = NULL, *rewrite = NULL, *rewriteattr = NULL;
2965 struct clsrvconf *conf;
2967 debug(DBG_DBG, "confclient_cb called for %s", block);
2969 conf = malloc(sizeof(struct clsrvconf));
2970 if (!conf || !list_push(clconfs, conf))
2971 debugx(1, DBG_ERR, "malloc failed");
2972 memset(conf, 0, sizeof(struct clsrvconf));
2973 conf->certnamecheck = 1;
2975 getgenericconfig(cf, block,
2976 "type", CONF_STR, &type,
2977 "host", CONF_STR, &conf->host,
2978 "secret", CONF_STR, &conf->secret,
2979 "tls", CONF_STR, &tls,
2980 "matchcertificateattribute", CONF_STR, &matchcertattr,
2981 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
2982 "rewrite", CONF_STR, &rewrite,
2983 "rewriteattribute", CONF_STR, &rewriteattr,
2987 conf->name = stringcopy(val, 0);
2989 conf->host = stringcopy(val, 0);
2991 if (type && !strcasecmp(type, "udp")) {
2994 } else if (type && !strcasecmp(type, "tls")) {
2995 conf->ssl_ctx = tls ? tlsgetctx(tls, NULL) : tlsgetctx("defaultclient", "default");
2997 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
2998 if (matchcertattr && !addmatchcertattr(conf, matchcertattr))
2999 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3003 debugx(1, DBG_ERR, "error in block %s, type must be set to UDP or TLS", block);
3008 free(matchcertattr);
3010 conf->rewrite = rewrite ? getrewrite(rewrite, NULL) : getrewrite("defaultclient", "default");
3013 if (!addrewriteattr(conf, rewriteattr))
3014 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
3018 if (!resolvepeer(conf, 0))
3019 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3021 if (!conf->secret) {
3022 if (conf->type == 'U')
3023 debugx(1, DBG_ERR, "error in block %s, secret must be specified for UDP", block);
3024 conf->secret = stringcopy(DEFAULT_TLS_SECRET, 0);
3028 void confserver_cb(struct gconffile **cf, char *block, char *opt, char *val) {
3029 char *type = NULL, *tls = NULL, *matchcertattr = NULL, *rewrite = NULL;
3030 struct clsrvconf *conf;
3032 debug(DBG_DBG, "confserver_cb called for %s", block);
3034 conf = malloc(sizeof(struct clsrvconf));
3035 if (!conf || !list_push(srvconfs, conf))
3036 debugx(1, DBG_ERR, "malloc failed");
3037 memset(conf, 0, sizeof(struct clsrvconf));
3038 conf->certnamecheck = 1;
3040 getgenericconfig(cf, block,
3041 "type", CONF_STR, &type,
3042 "host", CONF_STR, &conf->host,
3043 "port", CONF_STR, &conf->port,
3044 "secret", CONF_STR, &conf->secret,
3045 "tls", CONF_STR, &tls,
3046 "MatchCertificateAttribute", CONF_STR, &matchcertattr,
3047 "rewrite", CONF_STR, &rewrite,
3048 "StatusServer", CONF_BLN, &conf->statusserver,
3049 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3053 conf->name = stringcopy(val, 0);
3055 conf->host = stringcopy(val, 0);
3057 if (type && !strcasecmp(type, "udp")) {
3061 conf->port = stringcopy(DEFAULT_UDP_PORT, 0);
3062 } else if (type && !strcasecmp(type, "tls")) {
3063 conf->ssl_ctx = tls ? tlsgetctx(tls, NULL) : tlsgetctx("defaultserver", "default");
3065 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
3066 if (matchcertattr && !addmatchcertattr(conf, matchcertattr))
3067 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3069 conf->port = stringcopy(DEFAULT_TLS_PORT, 0);
3073 debugx(1, DBG_ERR, "error in block %s, type must be set to UDP or TLS", block);
3078 free(matchcertattr);
3080 conf->rewrite = rewrite ? getrewrite(rewrite, NULL) : getrewrite("defaultserver", "default");
3082 if (!resolvepeer(conf, 0))
3083 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3085 if (!conf->secret) {
3086 if (conf->type == 'U')
3087 debugx(1, DBG_ERR, "error in block %s, secret must be specified for UDP", block);
3088 conf->secret = stringcopy(DEFAULT_TLS_SECRET, 0);
3092 void confrealm_cb(struct gconffile **cf, char *block, char *opt, char *val) {
3093 char **servers = NULL, **accservers = NULL, *msg = NULL;
3095 debug(DBG_DBG, "confrealm_cb called for %s", block);
3097 getgenericconfig(cf, block,
3098 "server", CONF_MSTR, &servers,
3099 "accountingServer", CONF_MSTR, &accservers,
3100 "ReplyMessage", CONF_STR, &msg,
3104 addrealm(val, servers, accservers, msg);
3107 void conftls_cb(struct gconffile **cf, char *block, char *opt, char *val) {
3108 char *cacertfile = NULL, *cacertpath = NULL, *certfile = NULL, *certkeyfile = NULL, *certkeypwd = NULL;
3110 debug(DBG_DBG, "conftls_cb called for %s", block);
3112 getgenericconfig(cf, block,
3113 "CACertificateFile", CONF_STR, &cacertfile,
3114 "CACertificatePath", CONF_STR, &cacertpath,
3115 "CertificateFile", CONF_STR, &certfile,
3116 "CertificateKeyFile", CONF_STR, &certkeyfile,
3117 "CertificateKeyPassword", CONF_STR, &certkeypwd,
3121 tlsadd(val, cacertfile, cacertpath, certfile, certkeyfile, certkeypwd);
3129 void confrewrite_cb(struct gconffile **cf, char *block, char *opt, char *val) {
3130 char **attrs = NULL, **vattrs = NULL;
3132 debug(DBG_DBG, "confrewrite_cb called for %s", block);
3134 getgenericconfig(cf, block,
3135 "removeAttribute", CONF_MSTR, &attrs,
3136 "removeVendorAttribute", CONF_MSTR, &vattrs,
3139 addrewrite(val, attrs, vattrs);
3144 void getmainconfig(const char *configfile) {
3145 char *loglevel = NULL;
3146 struct gconffile *cfs;
3148 cfs = openconfigfile(configfile);
3149 memset(&options, 0, sizeof(options));
3151 clconfs = list_create();
3153 debugx(1, DBG_ERR, "malloc failed");
3155 srvconfs = list_create();
3157 debugx(1, DBG_ERR, "malloc failed");
3159 realms = list_create();
3161 debugx(1, DBG_ERR, "malloc failed");
3163 tlsconfs = list_create();
3165 debugx(1, DBG_ERR, "malloc failed");
3167 rewriteconfs = list_create();
3169 debugx(1, DBG_ERR, "malloc failed");
3171 getgenericconfig(&cfs, NULL,
3172 "ListenUDP", CONF_STR, &options.listenudp,
3173 "ListenTCP", CONF_STR, &options.listentcp,
3174 "ListenAccountingUDP", CONF_STR, &options.listenaccudp,
3175 "SourceUDP", CONF_STR, &options.sourceudp,
3176 "SourceTCP", CONF_STR, &options.sourcetcp,
3177 "LogLevel", CONF_STR, &loglevel,
3178 "LogDestination", CONF_STR, &options.logdestination,
3179 "Client", CONF_CBK, confclient_cb,
3180 "Server", CONF_CBK, confserver_cb,
3181 "Realm", CONF_CBK, confrealm_cb,
3182 "TLS", CONF_CBK, conftls_cb,
3183 "Rewrite", CONF_CBK, confrewrite_cb,
3190 if (strlen(loglevel) != 1 || *loglevel < '1' || *loglevel > '4')
3191 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %s, must be 1, 2, 3 or 4", configfile, loglevel);
3192 options.loglevel = *loglevel - '0';
3197 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile) {
3200 while ((c = getopt(argc, argv, "c:d:fpv")) != -1) {
3203 *configfile = optarg;
3206 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3207 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3208 *loglevel = *optarg - '0';
3217 debugx(0, DBG_ERR, "radsecproxy revision $Rev$");
3222 if (!(argc - optind))
3226 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -p ] [ -v ]", argv[0]);
3230 int daemon(int a, int b) {
3238 for (i = 0; i < 3; i++) {
3240 open("/dev/null", O_RDWR);
3246 void *sighandler(void *arg) {
3251 sigemptyset(&sigset);
3252 sigaddset(&sigset, SIGPIPE);
3253 sigwait(&sigset, &sig);
3254 /* only get SIGPIPE right now, so could simplify below code */
3257 /* completely ignoring this */
3260 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3263 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3268 int main(int argc, char **argv) {
3269 pthread_t sigth, udpserverth, udpaccserverth, udpclient4rdth, udpclient6rdth;
3271 struct list_node *entry;
3272 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3273 char *configfile = NULL;
3275 debug_init("radsecproxy");
3276 debug_set_level(DEBUG_LEVEL);
3277 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile);
3279 debug_set_level(loglevel);
3280 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3282 options.loglevel = loglevel;
3283 else if (options.loglevel)
3284 debug_set_level(options.loglevel);
3286 free(options.logdestination);
3287 options.logdestination = NULL;
3289 if (!options.logdestination)
3290 options.logdestination = "x-syslog:///";
3291 debug_set_destination(options.logdestination);
3292 free(options.logdestination);
3295 if (!list_first(clconfs))
3296 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3297 if (!list_first(srvconfs))
3298 debugx(1, DBG_ERR, "No servers configured, nothing to do, exiting");
3299 if (!list_first(realms))
3300 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3303 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3305 if (!foreground && (daemon(0, 0) < 0))
3306 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3308 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3310 sigemptyset(&sigset);
3311 /* exit on all but SIGPIPE, ignore more? */
3312 sigaddset(&sigset, SIGPIPE);
3313 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3314 pthread_create(&sigth, NULL, sighandler, NULL);
3316 if (client_udp_count) {
3317 udp_server_replyq = newreplyq();
3318 if (pthread_create(&udpserverth, NULL, udpserverrd, NULL))
3319 debugx(1, DBG_ERR, "pthread_create failed");
3320 if (options.listenaccudp)
3321 if (pthread_create(&udpaccserverth, NULL, udpaccserverrd, NULL))
3322 debugx(1, DBG_ERR, "pthread_create failed");
3325 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3326 addserver((struct clsrvconf *)entry->data);
3327 if (pthread_create(&((struct clsrvconf *)entry->data)->servers->clientth, NULL, clientwr,
3328 (void *)((struct clsrvconf *)entry->data)->servers))
3329 debugx(1, DBG_ERR, "pthread_create failed");
3331 /* srcudpres no longer needed, while srctcpres is needed later */
3333 freeaddrinfo(srcudpres);
3336 if (udp_client4_sock >= 0)
3337 if (pthread_create(&udpclient4rdth, NULL, udpclientrd, (void *)&udp_client4_sock))
3338 debugx(1, DBG_ERR, "clientwr: pthread_create failed");
3339 if (udp_client6_sock >= 0)
3340 if (pthread_create(&udpclient6rdth, NULL, udpclientrd, (void *)&udp_client6_sock))
3341 debugx(1, DBG_ERR, "clientwr: pthread_create failed");
3343 if (client_tls_count)
3344 return tlslistener2();
3346 /* just hang around doing nothing, anything to do here? */