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 * TCP accounting not yet supported
34 * We are not removing client requests from dynamic servers, see removeclientrqs()
35 * Need to remove UDP clients when no activity for a while...
36 * Remove expired stuff from clients request list?
40 #include <sys/socket.h>
41 #include <netinet/in.h>
50 #include <sys/types.h>
51 #include <sys/select.h>
54 #include <arpa/inet.h>
58 #include <openssl/ssl.h>
59 #include <openssl/rand.h>
60 #include <openssl/err.h>
61 #include <openssl/md5.h>
62 #include <openssl/hmac.h>
63 #include <openssl/x509v3.h>
69 #include "radsecproxy.h"
75 static struct options options;
76 static struct list *clconfs, *srvconfs;
78 struct hash *tlsconfs, *rewriteconfs;
80 static struct addrinfo *srcprotores[4] = { NULL, NULL, NULL, NULL };
82 static pthread_mutex_t *ssl_locks = NULL;
83 static long *ssl_lock_count;
87 /* minimum required declarations to avoid reordering code */
88 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id);
89 int dynamicconfig(struct server *server);
90 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
91 void freerealm(struct realm *realm);
92 void freeclsrvconf(struct clsrvconf *conf);
93 void freerq(struct request *rq);
94 void freerqoutdata(struct rqout *rqout);
95 void rmclientrq(struct request *rq, uint8_t id);
97 static const struct protodefs protodefs[] = {
98 { "udp", /* UDP, assuming RAD_UDP defined as 0 */
99 NULL, /* secretdefault */
100 SOCK_DGRAM, /* socktype */
101 "1812", /* portdefault */
102 REQUEST_RETRY_COUNT, /* retrycountdefault */
103 10, /* retrycountmax */
104 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
105 60, /* retryintervalmax */
106 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
107 udpserverrd, /* listener */
108 &options.sourceudp, /* srcaddrport */
109 NULL, /* connecter */
110 NULL, /* clientconnreader */
111 clientradputudp, /* clientradput */
112 addclientudp, /* addclient */
113 addserverextraudp, /* addserverextra */
114 initextraudp /* initextra */
116 { "tls", /* TLS, assuming RAD_TLS defined as 1 */
117 "mysecret", /* secretdefault */
118 SOCK_STREAM, /* socktype */
119 "2083", /* portdefault */
120 0, /* retrycountdefault */
121 0, /* retrycountmax */
122 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
123 60, /* retryintervalmax */
124 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
125 tlslistener, /* listener */
126 &options.sourcetls, /* srcaddrport */
127 tlsconnect, /* connecter */
128 tlsclientrd, /* clientconnreader */
129 clientradputtls, /* clientradput */
130 NULL, /* addclient */
131 NULL, /* addserverextra */
134 { "tcp", /* TCP, assuming RAD_TCP defined as 2 */
135 NULL, /* secretdefault */
136 SOCK_STREAM, /* socktype */
137 "1812", /* portdefault */
138 0, /* retrycountdefault */
139 0, /* retrycountmax */
140 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
141 60, /* retryintervalmax */
142 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
143 tcplistener, /* listener */
144 &options.sourcetcp, /* srcaddrport */
145 tcpconnect, /* connecter */
146 tcpclientrd, /* clientconnreader */
147 clientradputtcp, /* clientradput */
148 NULL, /* addclient */
149 NULL, /* addserverextra */
152 { "dtls", /* DTLS, assuming RAD_DTLS defined as 3 */
153 "mysecret", /* secretdefault */
154 SOCK_DGRAM, /* socktype */
155 "2083", /* portdefault */
156 REQUEST_RETRY_COUNT, /* retrycountdefault */
157 10, /* retrycountmax */
158 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
159 60, /* retryintervalmax */
160 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
161 udpdtlsserverrd, /* listener */
162 &options.sourcedtls, /* srcaddrport */
163 dtlsconnect, /* connecter */
164 dtlsclientrd, /* clientconnreader */
165 clientradputdtls, /* clientradput */
166 NULL, /* addclient */
167 addserverextradtls, /* addserverextra */
168 initextradtls /* initextra */
174 uint8_t protoname2int(const char *name) {
177 for (i = 0; protodefs[i].name && strcasecmp(protodefs[i].name, name); i++);
181 /* callbacks for making OpenSSL thread safe */
182 unsigned long ssl_thread_id() {
183 return (unsigned long)pthread_self();
186 void ssl_locking_callback(int mode, int type, const char *file, int line) {
187 if (mode & CRYPTO_LOCK) {
188 pthread_mutex_lock(&ssl_locks[type]);
189 ssl_lock_count[type]++;
191 pthread_mutex_unlock(&ssl_locks[type]);
194 static int pem_passwd_cb(char *buf, int size, int rwflag, void *userdata) {
195 int pwdlen = strlen(userdata);
196 if (rwflag != 0 || pwdlen > size) /* not for decryption or too large */
198 memcpy(buf, userdata, pwdlen);
202 static int verify_cb(int ok, X509_STORE_CTX *ctx) {
207 err_cert = X509_STORE_CTX_get_current_cert(ctx);
208 err = X509_STORE_CTX_get_error(ctx);
209 depth = X509_STORE_CTX_get_error_depth(ctx);
211 if (depth > MAX_CERT_DEPTH) {
213 err = X509_V_ERR_CERT_CHAIN_TOO_LONG;
214 X509_STORE_CTX_set_error(ctx, err);
218 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
219 debug(DBG_WARN, "verify error: num=%d:%s:depth=%d:%s", err, X509_verify_cert_error_string(err), depth, buf);
222 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
223 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf, 256);
224 debug(DBG_WARN, "\tIssuer=%s", buf);
226 case X509_V_ERR_CERT_NOT_YET_VALID:
227 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
228 debug(DBG_WARN, "\tCertificate not yet valid");
230 case X509_V_ERR_CERT_HAS_EXPIRED:
231 debug(DBG_WARN, "Certificate has expired");
233 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
234 debug(DBG_WARN, "Certificate no longer valid (after notAfter)");
239 printf("certificate verify returns %d\n", ok);
244 struct addrinfo *getsrcprotores(uint8_t type) {
245 return srcprotores[type];
248 int resolvepeer(struct clsrvconf *conf, int ai_flags) {
249 struct addrinfo hints, *addrinfo, *res;
253 slash = conf->host ? strchr(conf->host, '/') : NULL;
257 debug(DBG_WARN, "resolvepeer: prefix length must be specified after the / in %s", conf->host);
261 if (*s < '0' || *s > '9') {
262 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
265 plen = atoi(slash + 1);
266 if (plen < 0 || plen > 128) {
267 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
272 memset(&hints, 0, sizeof(hints));
273 hints.ai_socktype = conf->pdef->socktype;
274 hints.ai_family = AF_UNSPEC;
275 hints.ai_flags = ai_flags;
276 if (!conf->host && !conf->port) {
277 /* getaddrinfo() doesn't like host and port to be NULL */
278 if (getaddrinfo(conf->host, conf->pdef->portdefault, &hints, &addrinfo)) {
279 debug(DBG_WARN, "resolvepeer: can't resolve (null) port (null)");
282 for (res = addrinfo; res; res = res->ai_next)
283 port_set(res->ai_addr, 0);
286 hints.ai_flags |= AI_NUMERICHOST;
287 if (getaddrinfo(conf->host, conf->port, &hints, &addrinfo)) {
288 debug(DBG_WARN, "resolvepeer: can't resolve %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
293 switch (addrinfo->ai_family) {
296 debug(DBG_WARN, "resolvepeer: prefix length must be <= 32 in %s", conf->host);
297 freeaddrinfo(addrinfo);
304 debug(DBG_WARN, "resolvepeer: prefix must be IPv4 or IPv6 in %s", conf->host);
305 freeaddrinfo(addrinfo);
308 conf->prefixlen = plen;
310 conf->prefixlen = 255;
313 freeaddrinfo(conf->addrinfo);
314 conf->addrinfo = addrinfo;
318 char *parsehostport(char *s, struct clsrvconf *conf, char *default_port) {
323 /* allow literal addresses and port, e.g. [2001:db8::1]:1812 */
327 for (; *p && *p != ']' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
329 debugx(1, DBG_ERR, "no ] matching initial [");
333 for (; *p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
336 debugx(1, DBG_ERR, "missing host/address");
338 conf->host = stringcopy(field, p - field);
341 if (*p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n')
342 debugx(1, DBG_ERR, "unexpected character after ]");
345 /* port number or service name is specified */;
347 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
349 debugx(1, DBG_ERR, "syntax error, : but no following port");
350 conf->port = stringcopy(field, p - field);
352 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
356 struct clsrvconf *resolve_hostport(uint8_t type, char *lconf, char *default_port) {
357 struct clsrvconf *conf;
359 conf = malloc(sizeof(struct clsrvconf));
361 debugx(1, DBG_ERR, "malloc failed");
362 memset(conf, 0, sizeof(struct clsrvconf));
364 conf->pdef = &protodefs[conf->type];
366 parsehostport(lconf, conf, default_port);
367 if (!strcmp(conf->host, "*")) {
372 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
373 if (!resolvepeer(conf, AI_PASSIVE))
374 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
378 void freeclsrvres(struct clsrvconf *res) {
382 freeaddrinfo(res->addrinfo);
386 int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
388 struct addrinfo *res;
390 for (res = addrinfo; res; res = res->ai_next) {
391 if (family != AF_UNSPEC && family != res->ai_family)
393 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
395 debug(DBG_WARN, "bindtoaddr: socket failed");
399 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
402 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
404 if (!bind(s, res->ai_addr, res->ai_addrlen))
406 debug(DBG_WARN, "bindtoaddr: bind failed");
412 int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src) {
414 struct addrinfo *res;
417 for (res = addrinfo; res; res = res->ai_next) {
418 s = bindtoaddr(src, res->ai_family, 1, 1);
420 debug(DBG_WARN, "connecttoserver: socket failed");
423 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
425 debug(DBG_WARN, "connecttoserver: connect failed");
432 /* returns 1 if the len first bits are equal, else 0 */
433 int prefixmatch(void *a1, void *a2, uint8_t len) {
434 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
436 if (l && memcmp(a1, a2, l))
441 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
444 /* returns next config with matching address, or NULL */
445 struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur) {
446 struct sockaddr_in6 *sa6 = NULL;
447 struct in_addr *a4 = NULL;
448 struct addrinfo *res;
449 struct list_node *entry;
450 struct clsrvconf *conf;
452 if (addr->sa_family == AF_INET6) {
453 sa6 = (struct sockaddr_in6 *)addr;
454 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
455 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
459 a4 = &((struct sockaddr_in *)addr)->sin_addr;
461 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
462 conf = (struct clsrvconf *)entry->data;
463 if (conf->type == type) {
464 if (conf->prefixlen == 255) {
465 for (res = conf->addrinfo; res; res = res->ai_next)
466 if ((a4 && res->ai_family == AF_INET &&
467 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
468 (sa6 && res->ai_family == AF_INET6 &&
469 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16))) {
475 res = conf->addrinfo;
477 ((a4 && res->ai_family == AF_INET &&
478 prefixmatch(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, conf->prefixlen)) ||
479 (sa6 && res->ai_family == AF_INET6 &&
480 prefixmatch(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, conf->prefixlen)))) {
491 struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
492 return find_conf(type, addr, clconfs, cur);
495 struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
496 return find_conf(type, addr, srvconfs, cur);
499 /* returns next config of given type, or NULL */
500 struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
501 struct list_node *entry;
502 struct clsrvconf *conf;
504 for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
505 conf = (struct clsrvconf *)entry->data;
506 if (conf->type == type) {
515 struct queue *newqueue() {
518 q = malloc(sizeof(struct queue));
520 debugx(1, DBG_ERR, "malloc failed");
521 q->entries = list_create();
523 debugx(1, DBG_ERR, "malloc failed");
524 pthread_mutex_init(&q->mutex, NULL);
525 pthread_cond_init(&q->cond, NULL);
529 void removequeue(struct queue *q) {
530 struct list_node *entry;
534 pthread_mutex_lock(&q->mutex);
535 for (entry = list_first(q->entries); entry; entry = list_next(entry))
536 freerq((struct request *)entry);
537 list_destroy(q->entries);
538 pthread_cond_destroy(&q->cond);
539 pthread_mutex_unlock(&q->mutex);
540 pthread_mutex_destroy(&q->mutex);
544 void freebios(struct queue *q) {
547 pthread_mutex_lock(&q->mutex);
548 while ((bio = (BIO *)list_shift(q->entries)))
550 pthread_mutex_unlock(&q->mutex);
554 struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
555 struct client *new = malloc(sizeof(struct client));
558 debug(DBG_ERR, "malloc failed");
563 pthread_mutex_lock(conf->lock);
564 if (!conf->clients) {
565 conf->clients = list_create();
566 if (!conf->clients) {
568 pthread_mutex_unlock(conf->lock);
569 debug(DBG_ERR, "malloc failed");
574 memset(new, 0, sizeof(struct client));
575 pthread_mutex_init(&new->lock, NULL);
577 if (conf->pdef->addclient)
578 conf->pdef->addclient(new);
580 new->replyq = newqueue();
581 list_push(conf->clients, new);
583 pthread_mutex_unlock(conf->lock);
587 void removeclient(struct client *client) {
588 struct clsrvconf *conf;
593 pthread_mutex_lock(conf->lock);
595 pthread_mutex_lock(&client->lock);
596 removequeue(client->replyq);
597 list_removedata(conf->clients, client);
598 pthread_mutex_unlock(&client->lock);
599 pthread_mutex_destroy(&client->lock);
603 pthread_mutex_unlock(conf->lock);
606 void removeclientrqs(struct client *client) {
607 struct list_node *entry;
608 struct server *server;
612 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
613 server = ((struct clsrvconf *)entry->data)->servers;
616 for (i = 0; i < MAX_REQUESTS; i++) {
617 rqout = server->requests + i;
618 pthread_mutex_lock(rqout->lock);
619 if (rqout->rq && rqout->rq->from == client)
620 freerqoutdata(rqout);
621 pthread_mutex_unlock(rqout->lock);
626 void freeserver(struct server *server, uint8_t destroymutex) {
627 struct rqout *rqout, *end;
632 if (server->requests) {
633 rqout = server->requests;
634 for (end = rqout + MAX_REQUESTS; rqout < end; rqout++) {
635 freerqoutdata(rqout);
636 pthread_mutex_destroy(rqout->lock);
639 free(server->requests);
642 freebios(server->rbios);
643 free(server->dynamiclookuparg);
645 SSL_free(server->ssl);
647 pthread_mutex_destroy(&server->lock);
648 pthread_cond_destroy(&server->newrq_cond);
649 pthread_mutex_destroy(&server->newrq_mutex);
654 int addserver(struct clsrvconf *conf) {
655 struct clsrvconf *res;
660 debug(DBG_ERR, "addserver: currently works with just one server per conf");
663 conf->servers = malloc(sizeof(struct server));
664 if (!conf->servers) {
665 debug(DBG_ERR, "malloc failed");
668 memset(conf->servers, 0, sizeof(struct server));
669 conf->servers->conf = conf;
672 if (type == RAD_DTLS)
673 conf->servers->rbios = newqueue();
675 if (!srcprotores[type]) {
676 res = resolve_hostport(type, *conf->pdef->srcaddrport, NULL);
677 srcprotores[type] = res->addrinfo;
678 res->addrinfo = NULL;
682 conf->servers->sock = -1;
683 if (conf->pdef->addserverextra)
684 conf->pdef->addserverextra(conf);
686 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct rqout));
687 if (!conf->servers->requests) {
688 debug(DBG_ERR, "malloc failed");
691 for (i = 0; i < MAX_REQUESTS; i++) {
692 conf->servers->requests[i].lock = malloc(sizeof(pthread_mutex_t));
693 if (!conf->servers->requests[i].lock) {
694 debug(DBG_ERR, "malloc failed");
697 if (pthread_mutex_init(conf->servers->requests[i].lock, NULL)) {
698 debug(DBG_ERR, "mutex init failed");
699 free(conf->servers->requests[i].lock);
700 conf->servers->requests[i].lock = NULL;
704 if (pthread_mutex_init(&conf->servers->lock, NULL)) {
705 debug(DBG_ERR, "mutex init failed");
708 conf->servers->newrq = 0;
709 if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
710 debug(DBG_ERR, "mutex init failed");
711 pthread_mutex_destroy(&conf->servers->lock);
714 if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
715 debug(DBG_ERR, "mutex init failed");
716 pthread_mutex_destroy(&conf->servers->newrq_mutex);
717 pthread_mutex_destroy(&conf->servers->lock);
724 freeserver(conf->servers, 0);
725 conf->servers = NULL;
729 int subjectaltnameaddr(X509 *cert, int family, struct in6_addr *addr) {
730 int loc, i, l, n, r = 0;
733 STACK_OF(GENERAL_NAME) *alt;
736 debug(DBG_DBG, "subjectaltnameaddr");
738 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
742 ex = X509_get_ext(cert, loc);
743 alt = X509V3_EXT_d2i(ex);
747 n = sk_GENERAL_NAME_num(alt);
748 for (i = 0; i < n; i++) {
749 gn = sk_GENERAL_NAME_value(alt, i);
750 if (gn->type != GEN_IPADD)
753 v = (char *)ASN1_STRING_data(gn->d.ia5);
754 l = ASN1_STRING_length(gn->d.ia5);
755 if (((family == AF_INET && l == sizeof(struct in_addr)) || (family == AF_INET6 && l == sizeof(struct in6_addr)))
756 && !memcmp(v, &addr, l)) {
761 GENERAL_NAMES_free(alt);
765 int cnregexp(X509 *cert, char *exact, regex_t *regex) {
772 nm = X509_get_subject_name(cert);
775 loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
778 e = X509_NAME_get_entry(nm, loc);
779 t = X509_NAME_ENTRY_get_data(e);
780 v = (char *) ASN1_STRING_data(t);
781 l = ASN1_STRING_length(t);
785 if (l == strlen(exact) && !strncasecmp(exact, v, l))
788 s = stringcopy((char *)v, l);
790 debug(DBG_ERR, "malloc failed");
793 if (regexec(regex, s, 0, NULL, 0)) {
804 int subjectaltnameregexp(X509 *cert, int type, char *exact, regex_t *regex) {
805 int loc, i, l, n, r = 0;
808 STACK_OF(GENERAL_NAME) *alt;
811 debug(DBG_DBG, "subjectaltnameregexp");
813 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
817 ex = X509_get_ext(cert, loc);
818 alt = X509V3_EXT_d2i(ex);
822 n = sk_GENERAL_NAME_num(alt);
823 for (i = 0; i < n; i++) {
824 gn = sk_GENERAL_NAME_value(alt, i);
825 if (gn->type != type)
828 v = (char *)ASN1_STRING_data(gn->d.ia5);
829 l = ASN1_STRING_length(gn->d.ia5);
833 printfchars(NULL, gn->type == GEN_DNS ? "dns" : "uri", NULL, v, l);
836 if (memcmp(v, exact, l))
839 s = stringcopy((char *)v, l);
841 debug(DBG_ERR, "malloc failed");
844 if (regexec(regex, s, 0, NULL, 0)) {
853 GENERAL_NAMES_free(alt);
857 X509 *verifytlscert(SSL *ssl) {
861 if (SSL_get_verify_result(ssl) != X509_V_OK) {
862 debug(DBG_ERR, "verifytlscert: basic validation failed");
863 while ((error = ERR_get_error()))
864 debug(DBG_ERR, "verifytlscert: TLS: %s", ERR_error_string(error, NULL));
868 cert = SSL_get_peer_certificate(ssl);
870 debug(DBG_ERR, "verifytlscert: failed to obtain certificate");
874 int verifyconfcert(X509 *cert, struct clsrvconf *conf) {
876 uint8_t type = 0; /* 0 for DNS, AF_INET for IPv4, AF_INET6 for IPv6 */
877 struct in6_addr addr;
879 if (conf->certnamecheck && conf->prefixlen == 255) {
880 if (inet_pton(AF_INET, conf->host, &addr))
882 else if (inet_pton(AF_INET6, conf->host, &addr))
885 r = type ? subjectaltnameaddr(cert, type, &addr) : subjectaltnameregexp(cert, GEN_DNS, conf->host, NULL);
888 debug(DBG_WARN, "verifyconfcert: No subjectaltname matching %s %s", type ? "address" : "host", conf->host);
891 debug(DBG_DBG, "verifyconfcert: Found subjectaltname matching %s %s", type ? "address" : "host", conf->host);
893 if (!cnregexp(cert, conf->host, NULL)) {
894 debug(DBG_WARN, "verifyconfcert: cn not matching host %s", conf->host);
897 debug(DBG_DBG, "verifyconfcert: Found cn matching host %s", conf->host);
900 if (conf->certcnregex) {
901 if (cnregexp(cert, NULL, conf->certcnregex) < 1) {
902 debug(DBG_WARN, "verifyconfcert: CN not matching regex");
905 debug(DBG_DBG, "verifyconfcert: CN matching regex");
907 if (conf->certuriregex) {
908 if (subjectaltnameregexp(cert, GEN_URI, NULL, conf->certuriregex) < 1) {
909 debug(DBG_WARN, "verifyconfcert: subjectaltname URI not matching regex");
912 debug(DBG_DBG, "verifyconfcert: subjectaltname URI matching regex");
917 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
919 if (ATTRTYPE(attrs) == type)
921 length -= ATTRLEN(attrs);
922 attrs += ATTRLEN(attrs);
927 void freerq(struct request *rq) {
930 debug(DBG_DBG, "freerq: called with refcount %d", rq->refcount);
933 if (rq->origusername)
934 free(rq->origusername);
940 radmsg_free(rq->msg);
944 void freerqoutdata(struct rqout *rqout) {
952 memset(&rqout->expiry, 0, sizeof(struct timeval));
955 void sendrq(struct server *to, struct request *rq) {
958 pthread_mutex_lock(&to->newrq_mutex);
959 /* might simplify if only try nextid, might be ok */
960 for (i = to->nextid; i < MAX_REQUESTS; i++) {
961 if (!to->requests[i].rq) {
962 pthread_mutex_lock(to->requests[i].lock);
963 if (!to->requests[i].rq)
965 pthread_mutex_unlock(to->requests[i].lock);
968 if (i == MAX_REQUESTS) {
969 for (i = 0; i < to->nextid; i++) {
970 if (!to->requests[i].rq) {
971 pthread_mutex_lock(to->requests[i].lock);
972 if (!to->requests[i].rq)
974 pthread_mutex_unlock(to->requests[i].lock);
977 if (i == to->nextid) {
978 debug(DBG_WARN, "sendrq: no room in queue, dropping request");
979 rmclientrq(rq, rq->msg->id);
985 rq->msg->id = (uint8_t)i;
986 rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
988 pthread_mutex_unlock(to->requests[i].lock);
989 debug(DBG_ERR, "sendrq: radmsg2buf failed");
990 rmclientrq(rq, rq->msg->id);
995 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->host);
996 to->requests[i].rq = rq;
997 pthread_mutex_unlock(to->requests[i].lock);
1002 debug(DBG_DBG, "sendrq: signalling client writer");
1003 pthread_cond_signal(&to->newrq_cond);
1007 pthread_mutex_unlock(&to->newrq_mutex);
1010 void sendreply(struct request *rq) {
1012 struct client *to = rq->from;
1015 rq->replybuf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
1016 radmsg_free(rq->msg);
1018 if (!rq->replybuf) {
1020 debug(DBG_ERR, "sendreply: radmsg2buf failed");
1024 pthread_mutex_lock(&to->replyq->mutex);
1025 first = list_first(to->replyq->entries) == NULL;
1027 if (!list_push(to->replyq->entries, rq)) {
1028 pthread_mutex_unlock(&to->replyq->mutex);
1030 debug(DBG_ERR, "sendreply: malloc failed");
1035 debug(DBG_DBG, "signalling server writer");
1036 pthread_cond_signal(&to->replyq->cond);
1038 pthread_mutex_unlock(&to->replyq->mutex);
1041 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1042 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1043 static unsigned char first = 1;
1044 static EVP_MD_CTX mdctx;
1045 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1046 unsigned int md_len;
1047 uint8_t i, offset = 0, out[128];
1049 pthread_mutex_lock(&lock);
1051 EVP_MD_CTX_init(&mdctx);
1057 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1058 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1059 !EVP_DigestUpdate(&mdctx, input, 16) ||
1060 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1062 pthread_mutex_unlock(&lock);
1065 for (i = 0; i < 16; i++)
1066 out[offset + i] = hash[i] ^ in[offset + i];
1067 input = out + offset - 16;
1072 memcpy(in, out, len);
1073 pthread_mutex_unlock(&lock);
1077 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1078 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1079 static unsigned char first = 1;
1080 static EVP_MD_CTX mdctx;
1081 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1082 unsigned int md_len;
1083 uint8_t i, offset = 0, out[128];
1085 pthread_mutex_lock(&lock);
1087 EVP_MD_CTX_init(&mdctx);
1093 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1094 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1095 !EVP_DigestUpdate(&mdctx, input, 16) ||
1096 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1098 pthread_mutex_unlock(&lock);
1101 for (i = 0; i < 16; i++)
1102 out[offset + i] = hash[i] ^ in[offset + i];
1103 input = in + offset;
1108 memcpy(in, out, len);
1109 pthread_mutex_unlock(&lock);
1113 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1114 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1115 static unsigned char first = 1;
1116 static EVP_MD_CTX mdctx;
1117 unsigned char hash[EVP_MAX_MD_SIZE];
1118 unsigned int md_len;
1121 pthread_mutex_lock(&lock);
1123 EVP_MD_CTX_init(&mdctx);
1128 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
1129 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
1130 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
1133 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1134 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1135 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1136 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1137 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1138 pthread_mutex_unlock(&lock);
1143 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1146 for (i = 0; i < 16; i++)
1149 for (offset = 16; offset < len; offset += 16) {
1151 printf("text + offset - 16 c(%d): ", offset / 16);
1152 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1154 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1155 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1156 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1157 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1159 pthread_mutex_unlock(&lock);
1163 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1166 for (i = 0; i < 16; i++)
1167 text[offset + i] ^= hash[i];
1171 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
1174 pthread_mutex_unlock(&lock);
1178 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1179 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1180 static unsigned char first = 1;
1181 static EVP_MD_CTX mdctx;
1182 unsigned char hash[EVP_MAX_MD_SIZE];
1183 unsigned int md_len;
1187 pthread_mutex_lock(&lock);
1189 EVP_MD_CTX_init(&mdctx);
1194 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
1195 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
1196 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
1199 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1200 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1201 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1202 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1203 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1204 pthread_mutex_unlock(&lock);
1209 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1212 for (i = 0; i < 16; i++)
1213 plain[i] = text[i] ^ hash[i];
1215 for (offset = 16; offset < len; offset += 16) {
1217 printf("text + offset - 16 c(%d): ", offset / 16);
1218 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1220 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1221 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1222 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1223 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1225 pthread_mutex_unlock(&lock);
1229 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1232 for (i = 0; i < 16; i++)
1233 plain[offset + i] = text[offset + i] ^ hash[i];
1236 memcpy(text, plain, len);
1238 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
1241 pthread_mutex_unlock(&lock);
1245 struct realm *id2realm(struct list *realmlist, char *id) {
1246 struct list_node *entry;
1247 struct realm *realm, *subrealm = NULL;
1249 /* need to do locking for subrealms and check subrealm timers */
1250 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1251 realm = (struct realm *)entry->data;
1252 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
1253 pthread_mutex_lock(&realm->subrealms_mutex);
1254 if (realm->subrealms)
1255 subrealm = id2realm(realm->subrealms, id);
1256 pthread_mutex_unlock(&realm->subrealms_mutex);
1257 return subrealm ? subrealm : realm;
1263 /* helper function, only used by removeserversubrealms() */
1264 void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1265 struct list_node *entry;
1266 struct realm *realm;
1268 for (entry = list_first(realmlist); entry;) {
1269 realm = (struct realm *)entry->data;
1270 entry = list_next(entry);
1271 if (realm->srvconfs) {
1272 list_removedata(realm->srvconfs, srv);
1273 if (!list_first(realm->srvconfs)) {
1274 list_destroy(realm->srvconfs);
1275 realm->srvconfs = NULL;
1278 if (realm->accsrvconfs) {
1279 list_removedata(realm->accsrvconfs, srv);
1280 if (!list_first(realm->accsrvconfs)) {
1281 list_destroy(realm->accsrvconfs);
1282 realm->accsrvconfs = NULL;
1286 /* remove subrealm if no servers */
1287 if (!realm->srvconfs && !realm->accsrvconfs) {
1288 list_removedata(realmlist, realm);
1294 void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1295 struct list_node *entry;
1296 struct realm *realm;
1298 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1299 realm = (struct realm *)entry->data;
1300 pthread_mutex_lock(&realm->subrealms_mutex);
1301 if (realm->subrealms) {
1302 _internal_removeserversubrealms(realm->subrealms, srv);
1303 if (!list_first(realm->subrealms)) {
1304 list_destroy(realm->subrealms);
1305 realm->subrealms = NULL;
1308 pthread_mutex_unlock(&realm->subrealms_mutex);
1312 int attrvalidate(unsigned char *attrs, int length) {
1313 while (length > 1) {
1314 if (ATTRLEN(attrs) < 2) {
1315 debug(DBG_WARN, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
1318 length -= ATTRLEN(attrs);
1320 debug(DBG_WARN, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
1323 attrs += ATTRLEN(attrs);
1326 debug(DBG_WARN, "attrvalidate: malformed packet? remaining byte after last attribute");
1330 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1331 if (len < 16 || len > 128 || len % 16) {
1332 debug(DBG_WARN, "pwdrecrypt: invalid password length");
1336 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
1337 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
1341 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
1343 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
1344 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
1350 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, unsigned char *oldauth, char *newauth) {
1353 if (!msmppdecrypt(msmpp + 2, len - 2, (unsigned char *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
1354 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
1357 if (!msmppencrypt(msmpp + 2, len - 2, (unsigned char *)newsecret, strlen(newsecret), (unsigned char *)newauth, msmpp)) {
1358 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
1364 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
1365 char *oldsecret, char *newsecret) {
1366 unsigned char *attr;
1368 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
1369 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
1370 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->origauth))
1376 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint8_t subattr) {
1380 for (; attrs[0]; attrs += 2)
1381 if (attrs[0] == vendor && attrs[1] == subattr)
1386 /* returns 1 if entire element is to be removed, else 0 */
1387 int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
1388 uint8_t alen, sublen;
1392 if (!removevendorattrs)
1395 memcpy(&vendor, attr->v, 4);
1396 vendor = ntohl(vendor);
1397 while (*removevendorattrs && *removevendorattrs != vendor)
1398 removevendorattrs += 2;
1399 if (!*removevendorattrs)
1402 if (findvendorsubattr(removevendorattrs, vendor, -1))
1403 return 1; /* remove entire vendor attribute */
1405 sublen = attr->l - 4;
1406 subattrs = attr->v + 4;
1408 if (!attrvalidate(subattrs, sublen)) {
1409 debug(DBG_WARN, "dovendorrewrite: vendor attribute validation failed, no rewrite");
1413 while (sublen > 1) {
1414 alen = ATTRLEN(subattrs);
1416 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
1417 memmove(subattrs, subattrs + alen, sublen);
1425 void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
1426 struct list_node *n, *p;
1430 n = list_first(msg->attrs);
1432 attr = (struct tlv *)n->data;
1433 if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
1434 (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
1435 list_removedata(msg->attrs, attr);
1437 n = p ? list_next(p) : list_first(msg->attrs);
1444 int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
1445 struct list_node *n;
1448 for (n = list_first(addattrs); n; n = list_next(n)) {
1449 a = copytlv((struct tlv *)n->data);
1452 if (!radmsg_add(msg, a)) {
1460 int resizeattr(struct tlv *attr, uint8_t newlen) {
1463 if (newlen != attr->l) {
1464 newv = realloc(attr->v, newlen);
1473 int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
1474 size_t nmatch = 10, reslen = 0, start = 0;
1475 regmatch_t pmatch[10], *pfield;
1479 in = stringcopy((char *)attr->v, attr->l);
1483 if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
1488 out = modattr->replacement;
1490 for (i = start; out[i]; i++) {
1491 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1492 pfield = &pmatch[out[i + 1] - '0'];
1493 if (pfield->rm_so >= 0) {
1494 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1500 reslen += i - start;
1502 debug(DBG_WARN, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
1507 if (!resizeattr(attr, reslen)) {
1514 for (i = start; out[i]; i++) {
1515 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1516 pfield = &pmatch[out[i + 1] - '0'];
1517 if (pfield->rm_so >= 0) {
1518 memcpy(attr->v + reslen, out + start, i - start);
1519 reslen += i - start;
1520 memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1521 reslen += pfield->rm_eo - pfield->rm_so;
1528 memcpy(attr->v + reslen, out + start, i - start);
1532 int dorewritemod(struct radmsg *msg, struct list *modattrs) {
1533 struct list_node *n, *m;
1535 for (n = list_first(msg->attrs); n; n = list_next(n))
1536 for (m = list_first(modattrs); m; m = list_next(m))
1537 if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
1538 !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
1543 int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
1546 if (rewrite->removeattrs || rewrite->removevendorattrs)
1547 dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
1548 if (rewrite->addattrs && !dorewriteadd(msg, rewrite->addattrs))
1550 if (rewrite->modattrs && !dorewritemod(msg, rewrite->modattrs))
1555 int rewriteusername(struct request *rq, struct tlv *attr) {
1556 char *orig = (char *)tlv2str(attr);
1557 if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
1561 if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
1562 rq->origusername = (char *)orig;
1568 const char *radmsgtype2string(uint8_t code) {
1569 static const char *rad_msg_names[] = {
1570 "", "Access-Request", "Access-Accept", "Access-Reject",
1571 "Accounting-Request", "Accounting-Response", "", "",
1572 "", "", "", "Access-Challenge",
1573 "Status-Server", "Status-Client"
1575 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1578 void char2hex(char *h, unsigned char c) {
1579 static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
1580 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
1581 h[0] = hexdigits[c / 16];
1582 h[1] = hexdigits[c % 16];
1586 uint8_t *radattr2ascii(struct tlv *attr) {
1594 for (i = 0; i < attr->l; i++)
1595 if (attr->v[i] < 32 || attr->v[i] > 126)
1598 return (uint8_t *)stringcopy((char *)attr->v, attr->l);
1605 for (i = 0; i < attr->l; i++)
1606 if (attr->v[i] < 32 || attr->v[i] > 126) {
1608 char2hex((char *)d, attr->v[i]);
1616 void acclog(struct radmsg *msg, char *host) {
1620 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1622 debug(DBG_INFO, "acclog: accounting-request from %s without username attribute", host);
1625 username = radattr2ascii(attr);
1627 debug(DBG_INFO, "acclog: accounting-request from %s with username: %s", host, username);
1632 void respond(struct request *rq, uint8_t code, char *message) {
1636 msg = radmsg_init(code, rq->msg->id, rq->msg->auth);
1638 debug(DBG_ERR, "respond: malloc failed");
1641 if (message && *message) {
1642 attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
1643 if (!attr || !radmsg_add(msg, attr)) {
1646 debug(DBG_ERR, "respond: malloc failed");
1651 radmsg_free(rq->msg);
1653 debug(DBG_DBG, "respond: sending %s to %s", radmsgtype2string(msg->code), rq->from->conf->host);
1658 struct clsrvconf *choosesrvconf(struct list *srvconfs) {
1659 struct list_node *entry;
1660 struct clsrvconf *server, *best = NULL, *first = NULL;
1662 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1663 server = (struct clsrvconf *)entry->data;
1664 if (!server->servers)
1668 if (!server->servers->connectionok)
1670 if (!server->servers->lostrqs)
1676 if (server->servers->lostrqs < best->servers->lostrqs)
1679 return best ? best : first;
1682 struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
1683 struct clsrvconf *srvconf;
1684 char *id = (char *)tlv2str(username);
1688 *realm = id2realm(realms, id);
1693 debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
1694 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1699 if (!acc && !srvconf->servers)
1700 adddynamicrealmserver(*realm, srvconf, id);
1702 return srvconf->servers;
1706 struct request *newrequest() {
1709 rq = malloc(sizeof(struct request));
1711 debug(DBG_ERR, "newrequest: malloc failed");
1714 memset(rq, 0, sizeof(struct request));
1716 gettimeofday(&rq->created, NULL);
1720 int addclientrq(struct request *rq, uint8_t id) {
1724 pthread_mutex_lock(&rq->from->lock);
1725 gettimeofday(&now, NULL);
1726 r = rq->from->rqs[id];
1728 if (now.tv_sec - r->created.tv_sec < r->from->conf->dupinterval) {
1732 debug(DBG_INFO, "radsrv: already sent reply to request with id %d from %s, resending", id, r->from->conf->host);
1737 debug(DBG_INFO, "radsrv: already got request with id %d from %s, ignoring", id, r->from->conf->host);
1738 pthread_mutex_unlock(&rq->from->lock);
1744 rq->from->rqs[id] = rq;
1745 pthread_mutex_unlock(&rq->from->lock);
1749 void rmclientrq(struct request *rq, uint8_t id) {
1752 pthread_mutex_lock(&rq->from->lock);
1753 r = rq->from->rqs[id];
1756 rq->from->rqs[id] = NULL;
1758 pthread_mutex_unlock(&rq->from->lock);
1761 /* returns 0 if validation/authentication fails, else 1 */
1762 int radsrv(struct request *rq) {
1763 struct radmsg *msg = NULL;
1765 uint8_t *userascii = NULL;
1766 unsigned char newauth[16];
1767 struct realm *realm = NULL;
1768 struct server *to = NULL;
1769 struct client *from = rq->from;
1771 msg = buf2radmsg(rq->buf, (uint8_t *)from->conf->secret, NULL);
1776 debug(DBG_WARN, "radsrv: message validation failed, ignoring packet");
1782 debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
1783 if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
1784 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1788 if (!addclientrq(rq, msg->id))
1791 if (msg->code == RAD_Status_Server) {
1792 respond(rq, RAD_Access_Accept, NULL);
1796 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1798 if (from->conf->rewritein && !dorewrite(msg, from->conf->rewritein))
1801 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1803 if (msg->code == RAD_Accounting_Request) {
1804 acclog(msg, from->conf->host);
1805 respond(rq, RAD_Accounting_Response, NULL);
1807 debug(DBG_WARN, "radsrv: ignoring access request, no username attribute");
1811 if (from->conf->rewriteusername && !rewriteusername(rq, attr)) {
1812 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1816 userascii = radattr2ascii(attr);
1819 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
1821 to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
1823 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1828 if (realm->message && msg->code == RAD_Access_Request) {
1829 debug(DBG_INFO, "radsrv: sending reject to %s for %s", from->conf->host, userascii);
1830 respond(rq, RAD_Access_Reject, realm->message);
1831 } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
1832 acclog(msg, from->conf->host);
1833 respond(rq, RAD_Accounting_Response, NULL);
1838 if (options.loopprevention && !strcmp(from->conf->name, to->conf->name)) {
1839 debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s to server %s, discarding",
1840 from->conf->name, to->conf->name);
1844 if (msg->code != RAD_Accounting_Request) {
1845 if (!RAND_bytes(newauth, 16)) {
1846 debug(DBG_WARN, "radsrv: failed to generate random auth");
1852 printfchars(NULL, "auth", "%02x ", auth, 16);
1855 attr = radmsg_gettype(msg, RAD_Attr_User_Password);
1857 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
1858 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, msg->auth, newauth))
1862 attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
1864 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
1865 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, msg->auth, newauth))
1869 rq->origid = msg->id;
1870 memcpy(rq->origauth, msg->auth, 16);
1871 memcpy(msg->auth, newauth, 16);
1873 if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
1881 rmclientrq(rq, msg->id);
1888 void replyh(struct server *server, unsigned char *buf) {
1889 struct client *from;
1890 struct rqout *rqout;
1892 unsigned char *subattrs;
1893 uint8_t *username, *stationid;
1894 struct radmsg *msg = NULL;
1896 struct list_node *node;
1898 server->connectionok = 1;
1899 server->lostrqs = 0;
1901 rqout = server->requests + buf[1];
1902 pthread_mutex_lock(rqout->lock);
1903 if (!rqout->tries) {
1906 debug(DBG_INFO, "replyh: no outstanding request with this id, ignoring reply");
1910 msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rqout->rq->msg->auth);
1914 debug(DBG_WARN, "replyh: message validation failed, ignoring packet");
1917 if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
1918 && msg->code != RAD_Accounting_Response) {
1919 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
1922 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
1924 gettimeofday(&server->lastrcv, NULL);
1926 if (rqout->rq->msg->code == RAD_Status_Server) {
1927 freerqoutdata(rqout);
1928 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->host);
1932 gettimeofday(&server->lastreply, NULL);
1933 from = rqout->rq->from;
1935 if (server->conf->rewritein && !dorewrite(msg, from->conf->rewritein)) {
1936 debug(DBG_WARN, "replyh: rewritein failed");
1941 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1942 attr = (struct tlv *)node->data;
1943 if (attr->t != RAD_Attr_Vendor_Specific)
1947 if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
1950 sublen = attr->l - 4;
1951 subattrs = attr->v + 4;
1952 if (!attrvalidate(subattrs, sublen) ||
1953 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1954 rqout->rq, server->conf->secret, from->conf->secret) ||
1955 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1956 rqout->rq, server->conf->secret, from->conf->secret))
1960 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
1964 if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
1965 username = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_User_Name));
1967 stationid = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_Calling_Station_Id));
1969 debug(DBG_INFO, "%s for user %s stationid %s from %s",
1970 radmsgtype2string(msg->code), username, stationid, server->conf->host);
1973 debug(DBG_INFO, "%s for user %s from %s", radmsgtype2string(msg->code), username, server->conf->host);
1978 msg->id = (char)rqout->rq->origid;
1979 memcpy(msg->auth, rqout->rq->origauth, 16);
1982 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
1985 if (rqout->rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
1986 if (!resizeattr(attr, strlen(rqout->rq->origusername))) {
1987 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
1990 memcpy(attr->v, rqout->rq->origusername, strlen(rqout->rq->origusername));
1993 if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
1994 debug(DBG_WARN, "replyh: rewriteout failed");
1998 debug(DBG_INFO, "replyh: passing reply to client %s", from->conf->name);
1999 radmsg_free(rqout->rq->msg);
2000 rqout->rq->msg = msg;
2001 rqout->rq->refcount++;
2002 sendreply(rqout->rq);
2003 freerqoutdata(rqout);
2004 pthread_mutex_unlock(rqout->lock);
2009 pthread_mutex_unlock(rqout->lock);
2013 struct request *createstatsrvrq() {
2020 rq->msg = radmsg_init(RAD_Status_Server, 0, NULL);
2023 attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
2026 if (!radmsg_add(rq->msg, attr)) {
2037 /* code for removing state not finished */
2038 void *clientwr(void *arg) {
2039 struct server *server = (struct server *)arg;
2040 struct rqout *rqout;
2041 pthread_t clientrdth;
2042 int i, secs, dynconffail = 0;
2044 struct timeval now, laststatsrv;
2045 struct timespec timeout;
2046 struct request *statsrvrq;
2047 struct clsrvconf *conf;
2049 conf = server->conf;
2051 if (server->dynamiclookuparg && !dynamicconfig(server)) {
2056 if (!conf->addrinfo && !resolvepeer(conf, 0)) {
2057 debug(DBG_WARN, "failed to resolve host %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
2061 memset(&timeout, 0, sizeof(struct timespec));
2063 if (conf->statusserver) {
2064 gettimeofday(&server->lastrcv, NULL);
2065 gettimeofday(&laststatsrv, NULL);
2068 if (conf->pdef->connecter) {
2069 if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 6 : 0, "clientwr"))
2071 server->connectionok = 1;
2072 if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
2073 debug(DBG_ERR, "clientwr: pthread_create failed");
2077 server->connectionok = 1;
2080 pthread_mutex_lock(&server->newrq_mutex);
2081 if (!server->newrq) {
2082 gettimeofday(&now, NULL);
2083 /* random 0-7 seconds */
2084 RAND_bytes(&rnd, 1);
2086 if (conf->statusserver) {
2087 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2088 if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
2089 timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
2091 if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
2092 timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
2095 if (timeout.tv_sec > now.tv_sec)
2096 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
2098 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
2101 if (server->newrq) {
2102 debug(DBG_DBG, "clientwr: got new request");
2107 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
2109 pthread_mutex_unlock(&server->newrq_mutex);
2111 for (i = 0; i < MAX_REQUESTS; i++) {
2112 if (server->clientrdgone) {
2113 pthread_join(clientrdth, NULL);
2117 for (; i < MAX_REQUESTS; i++) {
2118 rqout = server->requests + i;
2120 pthread_mutex_lock(rqout->lock);
2123 pthread_mutex_unlock(rqout->lock);
2127 if (i == MAX_REQUESTS)
2130 gettimeofday(&now, NULL);
2131 if (now.tv_sec < rqout->expiry.tv_sec) {
2132 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2133 timeout.tv_sec = rqout->expiry.tv_sec;
2134 pthread_mutex_unlock(rqout->lock);
2138 if (rqout->tries == (*rqout->rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
2139 debug(DBG_DBG, "clientwr: removing expired packet from queue");
2140 if (conf->statusserver) {
2141 if (*rqout->rq->buf == RAD_Status_Server) {
2142 debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->host);
2143 if (server->lostrqs < 255)
2147 debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->host);
2148 if (server->lostrqs < 255)
2151 freerqoutdata(rqout);
2152 pthread_mutex_unlock(rqout->lock);
2156 rqout->expiry.tv_sec = now.tv_sec + conf->retryinterval;
2157 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2158 timeout.tv_sec = rqout->expiry.tv_sec;
2160 conf->pdef->clientradput(server, rqout->rq->buf);
2161 pthread_mutex_unlock(rqout->lock);
2163 if (conf->statusserver) {
2164 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2165 gettimeofday(&now, NULL);
2166 if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
2168 statsrvrq = createstatsrvrq();
2170 debug(DBG_DBG, "clientwr: sending status server to %s", conf->host);
2171 sendrq(server, statsrvrq);
2177 conf->servers = NULL;
2178 if (server->dynamiclookuparg) {
2179 removeserversubrealms(realms, conf);
2183 freeclsrvconf(conf);
2185 freeserver(server, 1);
2186 ERR_remove_state(0);
2190 void createlistener(uint8_t type, char *arg) {
2192 struct clsrvconf *listenres;
2193 struct addrinfo *res;
2194 int s = -1, on = 1, *sp = NULL;
2196 listenres = resolve_hostport(type, arg, protodefs[type].portdefault);
2198 debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
2200 for (res = listenres->addrinfo; res; res = res->ai_next) {
2201 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
2203 debug(DBG_WARN, "createlistener: socket failed");
2206 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
2208 if (res->ai_family == AF_INET6)
2209 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
2211 if (bind(s, res->ai_addr, res->ai_addrlen)) {
2212 debug(DBG_WARN, "createlistener: bind failed");
2218 sp = malloc(sizeof(int));
2220 debugx(1, DBG_ERR, "malloc failed");
2222 if (pthread_create(&th, NULL, protodefs[type].listener, (void *)sp))
2223 debugx(1, DBG_ERR, "pthread_create failed");
2227 debugx(1, DBG_ERR, "createlistener: socket/bind failed");
2229 debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type].name,
2230 listenres->host ? listenres->host : "*", listenres->port);
2231 freeclsrvres(listenres);
2234 void createlisteners(uint8_t type, char **args) {
2238 for (i = 0; args[i]; i++)
2239 createlistener(type, args[i]);
2241 createlistener(type, NULL);
2245 void ssl_info_callback(const SSL *ssl, int where, int ret) {
2249 w = where & ~SSL_ST_MASK;
2251 if (w & SSL_ST_CONNECT)
2253 else if (w & SSL_ST_ACCEPT)
2258 if (where & SSL_CB_LOOP)
2259 debug(DBG_DBG, "%s:%s\n", s, SSL_state_string_long(ssl));
2260 else if (where & SSL_CB_ALERT) {
2261 s = (where & SSL_CB_READ) ? "read" : "write";
2262 debug(DBG_DBG, "SSL3 alert %s:%s:%s\n", s, SSL_alert_type_string_long(ret), SSL_alert_desc_string_long(ret));
2264 else if (where & SSL_CB_EXIT) {
2266 debug(DBG_DBG, "%s:failed in %s\n", s, SSL_state_string_long(ssl));
2268 debug(DBG_DBG, "%s:error in %s\n", s, SSL_state_string_long(ssl));
2273 SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
2274 SSL_CTX *ctx = NULL;
2275 STACK_OF(X509_NAME) *calist;
2278 unsigned long error;
2281 ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
2282 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
2283 for (i = 0; i < CRYPTO_num_locks(); i++) {
2284 ssl_lock_count[i] = 0;
2285 pthread_mutex_init(&ssl_locks[i], NULL);
2287 CRYPTO_set_id_callback(ssl_thread_id);
2288 CRYPTO_set_locking_callback(ssl_locking_callback);
2290 SSL_load_error_strings();
2293 while (!RAND_status()) {
2294 time_t t = time(NULL);
2295 pid_t pid = getpid();
2296 RAND_seed((unsigned char *)&t, sizeof(time_t));
2297 RAND_seed((unsigned char *)&pid, sizeof(pid));
2303 ctx = SSL_CTX_new(TLSv1_method());
2305 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2309 ctx = SSL_CTX_new(DTLSv1_method());
2311 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2313 SSL_CTX_set_read_ahead(ctx, 1);
2317 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2321 if (conf->certkeypwd) {
2322 SSL_CTX_set_default_passwd_cb_userdata(ctx, conf->certkeypwd);
2323 SSL_CTX_set_default_passwd_cb(ctx, pem_passwd_cb);
2325 if (!SSL_CTX_use_certificate_chain_file(ctx, conf->certfile) ||
2326 !SSL_CTX_use_PrivateKey_file(ctx, conf->certkeyfile, SSL_FILETYPE_PEM) ||
2327 !SSL_CTX_check_private_key(ctx) ||
2328 !SSL_CTX_load_verify_locations(ctx, conf->cacertfile, conf->cacertpath)) {
2329 while ((error = ERR_get_error()))
2330 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2331 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2336 calist = conf->cacertfile ? SSL_load_client_CA_file(conf->cacertfile) : NULL;
2337 if (!conf->cacertfile || calist) {
2338 if (conf->cacertpath) {
2340 calist = sk_X509_NAME_new_null();
2341 if (!SSL_add_dir_cert_subjects_to_stack(calist, conf->cacertpath)) {
2342 sk_X509_NAME_free(calist);
2348 while ((error = ERR_get_error()))
2349 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2350 debug(DBG_ERR, "tlscreatectx: Error adding CA subjects in TLS context %s", conf->name);
2354 ERR_clear_error(); /* add_dir_cert_subj returns errors on success */
2355 SSL_CTX_set_client_CA_list(ctx, calist);
2357 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
2358 SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
2360 if (conf->crlcheck) {
2361 x509_s = SSL_CTX_get_cert_store(ctx);
2362 X509_STORE_set_flags(x509_s, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL);
2365 debug(DBG_DBG, "tlscreatectx: created TLS context %s", conf->name);
2369 SSL_CTX *tlsgetctx(uint8_t type, char *alt1, char *alt2) {
2372 t = hash_read(tlsconfs, alt1, strlen(alt1));
2374 t = hash_read(tlsconfs, alt2, strlen(alt2));
2382 t->tlsctx = tlscreatectx(RAD_TLS, t);
2386 t->dtlsctx = tlscreatectx(RAD_DTLS, t);
2392 struct list *addsrvconfs(char *value, char **names) {
2393 struct list *conflist;
2395 struct list_node *entry;
2396 struct clsrvconf *conf = NULL;
2398 if (!names || !*names)
2401 conflist = list_create();
2403 debug(DBG_ERR, "malloc failed");
2407 for (n = 0; names[n]; n++) {
2408 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2409 conf = (struct clsrvconf *)entry->data;
2410 if (!strcasecmp(names[n], conf->name))
2414 debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
2415 list_destroy(conflist);
2418 if (!list_push(conflist, conf)) {
2419 debug(DBG_ERR, "malloc failed");
2420 list_destroy(conflist);
2423 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2428 void freerealm(struct realm *realm) {
2432 free(realm->message);
2433 regfree(&realm->regex);
2434 pthread_mutex_destroy(&realm->subrealms_mutex);
2435 if (realm->subrealms)
2436 list_destroy(realm->subrealms);
2437 if (realm->srvconfs) {
2438 /* emptying list without freeing data */
2439 while (list_shift(realm->srvconfs));
2440 list_destroy(realm->srvconfs);
2442 if (realm->accsrvconfs) {
2443 /* emptying list without freeing data */
2444 while (list_shift(realm->accsrvconfs));
2445 list_destroy(realm->accsrvconfs);
2450 struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
2452 struct realm *realm;
2453 char *s, *regex = NULL;
2455 if (*value == '/') {
2456 /* regexp, remove optional trailing / if present */
2457 if (value[strlen(value) - 1] == '/')
2458 value[strlen(value) - 1] = '\0';
2460 /* not a regexp, let us make it one */
2461 if (*value == '*' && !value[1])
2462 regex = stringcopy(".*", 0);
2464 for (n = 0, s = value; *s;)
2467 regex = malloc(strlen(value) + n + 3);
2470 for (n = 1, s = value; *s; s++) {
2480 debug(DBG_ERR, "malloc failed");
2484 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2487 realm = malloc(sizeof(struct realm));
2489 debug(DBG_ERR, "malloc failed");
2492 memset(realm, 0, sizeof(struct realm));
2494 if (pthread_mutex_init(&realm->subrealms_mutex, NULL)) {
2495 debug(DBG_ERR, "mutex init failed");
2501 realm->name = stringcopy(value, 0);
2503 debug(DBG_ERR, "malloc failed");
2506 if (message && strlen(message) > 253) {
2507 debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
2510 realm->message = message;
2511 realm->accresp = accresp;
2513 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2514 debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2518 if (servers && *servers) {
2519 realm->srvconfs = addsrvconfs(value, servers);
2520 if (!realm->srvconfs)
2524 if (accservers && *accservers) {
2525 realm->accsrvconfs = addsrvconfs(value, accservers);
2526 if (!realm->accsrvconfs)
2530 if (!list_push(realmlist, realm)) {
2531 debug(DBG_ERR, "malloc failed");
2532 pthread_mutex_destroy(&realm->subrealms_mutex);
2536 debug(DBG_DBG, "addrealm: added realm %s", value);
2546 for (n = 0; servers[n]; n++)
2551 for (n = 0; accservers[n]; n++)
2552 free(accservers[n]);
2558 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id) {
2559 struct clsrvconf *srvconf;
2560 struct realm *newrealm = NULL;
2561 char *realmname, *s;
2564 if (!conf->dynamiclookupcommand)
2567 /* create dynamic for the realm (string after last @, exit if nothing after @ */
2568 realmname = strrchr(id, '@');
2574 for (s = realmname; *s; s++)
2575 if (*s != '.' && *s != '-' && !isalnum((int)*s))
2578 pthread_mutex_lock(&realm->subrealms_mutex);
2579 /* exit if we now already got a matching subrealm */
2580 if (id2realm(realm->subrealms, id))
2582 srvconf = malloc(sizeof(struct clsrvconf));
2584 debug(DBG_ERR, "malloc failed");
2588 if (!addserver(srvconf))
2591 if (!realm->subrealms)
2592 realm->subrealms = list_create();
2593 if (!realm->subrealms)
2595 newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, NULL, 0);
2599 /* add server and accserver to newrealm */
2600 newrealm->srvconfs = list_create();
2601 if (!newrealm->srvconfs || !list_push(newrealm->srvconfs, srvconf)) {
2602 debug(DBG_ERR, "malloc failed");
2605 newrealm->accsrvconfs = list_create();
2606 if (!newrealm->accsrvconfs || !list_push(newrealm->accsrvconfs, srvconf)) {
2607 debug(DBG_ERR, "malloc failed");
2611 srvconf->servers->dynamiclookuparg = stringcopy(realmname, 0);
2613 if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
2614 debug(DBG_ERR, "pthread_create failed");
2617 pthread_detach(clientth);
2622 list_removedata(realm->subrealms, newrealm);
2623 freerealm(newrealm);
2624 if (!list_first(realm->subrealms)) {
2625 list_destroy(realm->subrealms);
2626 realm->subrealms = NULL;
2629 freeserver(srvconf->servers, 1);
2631 debug(DBG_ERR, "failed to create dynamic server");
2634 pthread_mutex_unlock(&realm->subrealms_mutex);
2637 int dynamicconfig(struct server *server) {
2638 int ok, fd[2], status;
2640 struct clsrvconf *conf = server->conf;
2641 struct gconffile *cf = NULL;
2643 /* for now we only learn hostname/address */
2644 debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
2647 debug(DBG_ERR, "dynamicconfig: pipe error");
2652 debug(DBG_ERR, "dynamicconfig: fork error");
2656 } else if (pid == 0) {
2659 if (fd[1] != STDOUT_FILENO) {
2660 if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
2661 debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
2664 if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
2665 debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
2669 pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
2670 ok = getgenericconfig(&cf, NULL,
2671 "Server", CONF_CBK, confserver_cb, (void *)conf,
2676 if (waitpid(pid, &status, 0) < 0) {
2677 debug(DBG_ERR, "dynamicconfig: wait error");
2682 debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
2690 debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
2694 int addmatchcertattr(struct clsrvconf *conf) {
2698 if (!strncasecmp(conf->matchcertattr, "CN:/", 4)) {
2699 r = &conf->certcnregex;
2700 v = conf->matchcertattr + 4;
2701 } else if (!strncasecmp(conf->matchcertattr, "SubjectAltName:URI:/", 20)) {
2702 r = &conf->certuriregex;
2703 v = conf->matchcertattr + 20;
2708 /* regexp, remove optional trailing / if present */
2709 if (v[strlen(v) - 1] == '/')
2710 v[strlen(v) - 1] = '\0';
2714 *r = malloc(sizeof(regex_t));
2716 debug(DBG_ERR, "malloc failed");
2719 if (regcomp(*r, v, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2722 debug(DBG_ERR, "failed to compile regular expression %s", v);
2728 /* should accept both names and numeric values, only numeric right now */
2729 uint8_t attrname2val(char *attrname) {
2732 val = atoi(attrname);
2733 return val > 0 && val < 256 ? val : 0;
2736 /* should accept both names and numeric values, only numeric right now */
2737 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2740 *vendor = atoi(attrname);
2741 s = strchr(attrname, ':');
2746 *type = atoi(s + 1);
2747 return *type >= 0 && *type < 256;
2750 /* should accept both names and numeric values, only numeric right now */
2751 struct tlv *extractattr(char *nameval) {
2756 s = strchr(nameval, ':');
2757 name = atoi(nameval);
2758 if (!s || name < 1 || name > 255)
2760 len = strlen(s + 1);
2763 a = malloc(sizeof(struct tlv));
2766 a->v = (uint8_t *)stringcopy(s + 1, 0);
2776 /* should accept both names and numeric values, only numeric right now */
2777 struct modattr *extractmodattr(char *nameval) {
2782 if (!strncasecmp(nameval, "User-Name:/", 11)) {
2786 s = strchr(nameval, ':');
2787 name = atoi(nameval);
2788 if (!s || name < 1 || name > 255 || s[1] != '/')
2792 /* regexp, remove optional trailing / if present */
2793 if (s[strlen(s) - 1] == '/')
2794 s[strlen(s) - 1] = '\0';
2802 m = malloc(sizeof(struct modattr));
2804 debug(DBG_ERR, "malloc failed");
2809 m->replacement = stringcopy(t, 0);
2810 if (!m->replacement) {
2812 debug(DBG_ERR, "malloc failed");
2816 m->regex = malloc(sizeof(regex_t));
2818 free(m->replacement);
2820 debug(DBG_ERR, "malloc failed");
2824 if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
2826 free(m->replacement);
2828 debug(DBG_ERR, "failed to compile regular expression %s", s);
2835 struct rewrite *getrewrite(char *alt1, char *alt2) {
2838 if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
2840 if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
2845 void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **modattrs) {
2846 struct rewrite *rewrite = NULL;
2848 uint8_t *rma = NULL;
2849 uint32_t *p, *rmva = NULL;
2850 struct list *adda = NULL, *moda = NULL;
2855 for (n = 0; rmattrs[n]; n++);
2856 rma = calloc(n + 1, sizeof(uint8_t));
2858 debugx(1, DBG_ERR, "malloc failed");
2860 for (i = 0; i < n; i++) {
2861 if (!(rma[i] = attrname2val(rmattrs[i])))
2862 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", rmattrs[i]);
2870 for (n = 0; rmvattrs[n]; n++);
2871 rmva = calloc(2 * n + 1, sizeof(uint32_t));
2873 debugx(1, DBG_ERR, "malloc failed");
2875 for (p = rmva, i = 0; i < n; i++, p += 2) {
2876 if (!vattrname2val(rmvattrs[i], p, p + 1))
2877 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", rmvattrs[i]);
2885 adda = list_create();
2887 debugx(1, DBG_ERR, "malloc failed");
2888 for (i = 0; addattrs[i]; i++) {
2889 a = extractattr(addattrs[i]);
2891 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addattrs[i]);
2893 if (!list_push(adda, a))
2894 debugx(1, DBG_ERR, "malloc failed");
2900 moda = list_create();
2902 debugx(1, DBG_ERR, "malloc failed");
2903 for (i = 0; modattrs[i]; i++) {
2904 m = extractmodattr(modattrs[i]);
2906 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", modattrs[i]);
2908 if (!list_push(moda, m))
2909 debugx(1, DBG_ERR, "malloc failed");
2914 if (rma || rmva || adda || moda) {
2915 rewrite = malloc(sizeof(struct rewrite));
2917 debugx(1, DBG_ERR, "malloc failed");
2918 rewrite->removeattrs = rma;
2919 rewrite->removevendorattrs = rmva;
2920 rewrite->addattrs = adda;
2921 rewrite->modattrs = moda;
2924 if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
2925 debugx(1, DBG_ERR, "malloc failed");
2926 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2929 void freeclsrvconf(struct clsrvconf *conf) {
2935 free(conf->matchcertattr);
2936 if (conf->certcnregex)
2937 regfree(conf->certcnregex);
2938 if (conf->certuriregex)
2939 regfree(conf->certuriregex);
2940 free(conf->confrewritein);
2941 free(conf->confrewriteout);
2942 if (conf->rewriteusername) {
2943 if (conf->rewriteusername->regex)
2944 regfree(conf->rewriteusername->regex);
2945 free(conf->rewriteusername->replacement);
2946 free(conf->rewriteusername);
2948 free(conf->dynamiclookupcommand);
2949 free(conf->rewritein);
2950 free(conf->rewriteout);
2952 freeaddrinfo(conf->addrinfo);
2954 pthread_mutex_destroy(conf->lock);
2957 /* not touching ssl_ctx, clients and servers */
2961 int mergeconfstring(char **dst, char **src) {
2970 t = stringcopy(*dst, 0);
2972 debug(DBG_ERR, "malloc failed");
2980 /* assumes dst is a shallow copy */
2981 int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
2982 if (!mergeconfstring(&dst->name, &src->name) ||
2983 !mergeconfstring(&dst->host, &src->host) ||
2984 !mergeconfstring(&dst->port, &src->port) ||
2985 !mergeconfstring(&dst->secret, &src->secret) ||
2986 !mergeconfstring(&dst->tls, &src->tls) ||
2987 !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
2988 !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
2989 !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
2990 !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
2993 dst->pdef = src->pdef;
2994 dst->statusserver = src->statusserver;
2995 dst->certnamecheck = src->certnamecheck;
2996 if (src->retryinterval != 255)
2997 dst->retryinterval = src->retryinterval;
2998 if (src->retrycount != 255)
2999 dst->retrycount = src->retrycount;
3003 int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3004 struct clsrvconf *conf;
3005 char *conftype = NULL, *rewriteinalias = NULL;
3006 long int dupinterval = LONG_MIN;
3008 debug(DBG_DBG, "confclient_cb called for %s", block);
3010 conf = malloc(sizeof(struct clsrvconf));
3012 debugx(1, DBG_ERR, "malloc failed");
3013 memset(conf, 0, sizeof(struct clsrvconf));
3014 conf->certnamecheck = 1;
3016 if (!getgenericconfig(cf, block,
3017 "type", CONF_STR, &conftype,
3018 "host", CONF_STR, &conf->host,
3019 "secret", CONF_STR, &conf->secret,
3020 "tls", CONF_STR, &conf->tls,
3021 "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
3022 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3023 "DuplicateInterval", CONF_LINT, &dupinterval,
3024 "rewrite", CONF_STR, &rewriteinalias,
3025 "rewriteIn", CONF_STR, &conf->confrewritein,
3026 "rewriteOut", CONF_STR, &conf->confrewriteout,
3027 "rewriteattribute", CONF_STR, &conf->confrewriteusername,
3030 debugx(1, DBG_ERR, "configuration error");
3032 conf->name = stringcopy(val, 0);
3034 conf->host = stringcopy(val, 0);
3035 if (!conf->name || !conf->host)
3036 debugx(1, DBG_ERR, "malloc failed");
3039 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3040 conf->type = protoname2int(conftype);
3041 conf->pdef = &protodefs[conf->type];
3042 if (!conf->pdef->name)
3043 debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3046 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3047 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultclient", "default");
3049 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
3050 if (conf->matchcertattr && !addmatchcertattr(conf))
3051 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3054 if (dupinterval != LONG_MIN) {
3055 if (dupinterval < 0 || dupinterval > 255)
3056 debugx(1, DBG_ERR, "error in block %s, value of option DuplicateInterval is %d, must be 0-255", block, dupinterval);
3057 conf->dupinterval = (uint8_t)dupinterval;
3059 conf->dupinterval = conf->pdef->duplicateintervaldefault;
3061 if (!conf->confrewritein)
3062 conf->confrewritein = rewriteinalias;
3064 free(rewriteinalias);
3065 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
3066 if (conf->confrewriteout)
3067 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3069 if (conf->confrewriteusername) {
3070 conf->rewriteusername = extractmodattr(conf->confrewriteusername);
3071 if (!conf->rewriteusername)
3072 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
3075 if (!resolvepeer(conf, 0))
3076 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3078 if (!conf->secret) {
3079 if (!conf->pdef->secretdefault)
3080 debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3081 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3083 debugx(1, DBG_ERR, "malloc failed");
3086 conf->lock = malloc(sizeof(pthread_mutex_t));
3088 debugx(1, DBG_ERR, "malloc failed");
3090 pthread_mutex_init(conf->lock, NULL);
3091 if (!list_push(clconfs, conf))
3092 debugx(1, DBG_ERR, "malloc failed");
3096 int compileserverconfig(struct clsrvconf *conf, const char *block) {
3097 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3098 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultserver", "default");
3099 if (!conf->ssl_ctx) {
3100 debug(DBG_ERR, "error in block %s, no tls context defined", block);
3103 if (conf->matchcertattr && !addmatchcertattr(conf)) {
3104 debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3110 conf->port = stringcopy(conf->pdef->portdefault, 0);
3112 debug(DBG_ERR, "malloc failed");
3117 if (conf->retryinterval == 255)
3118 conf->retryinterval = protodefs[conf->type].retryintervaldefault;
3119 if (conf->retrycount == 255)
3120 conf->retrycount = protodefs[conf->type].retrycountdefault;
3122 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
3123 if (conf->confrewriteout)
3124 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3126 if (!conf->secret) {
3127 if (!conf->pdef->secretdefault) {
3128 debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3131 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3132 if (!conf->secret) {
3133 debug(DBG_ERR, "malloc failed");
3138 if (!conf->dynamiclookupcommand && !resolvepeer(conf, 0)) {
3139 debug(DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3145 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3146 struct clsrvconf *conf, *resconf;
3147 char *conftype = NULL, *rewriteinalias = NULL;
3148 long int retryinterval = LONG_MIN, retrycount = LONG_MIN;
3150 debug(DBG_DBG, "confserver_cb called for %s", block);
3152 conf = malloc(sizeof(struct clsrvconf));
3154 debug(DBG_ERR, "malloc failed");
3157 memset(conf, 0, sizeof(struct clsrvconf));
3158 resconf = (struct clsrvconf *)arg;
3160 conf->statusserver = resconf->statusserver;
3161 conf->certnamecheck = resconf->certnamecheck;
3163 conf->certnamecheck = 1;
3165 if (!getgenericconfig(cf, block,
3166 "type", CONF_STR, &conftype,
3167 "host", CONF_STR, &conf->host,
3168 "port", CONF_STR, &conf->port,
3169 "secret", CONF_STR, &conf->secret,
3170 "tls", CONF_STR, &conf->tls,
3171 "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
3172 "rewrite", CONF_STR, &rewriteinalias,
3173 "rewriteIn", CONF_STR, &conf->confrewritein,
3174 "rewriteOut", CONF_STR, &conf->confrewriteout,
3175 "StatusServer", CONF_BLN, &conf->statusserver,
3176 "RetryInterval", CONF_LINT, &retryinterval,
3177 "RetryCount", CONF_LINT, &retrycount,
3178 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3179 "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
3182 debug(DBG_ERR, "configuration error");
3186 conf->name = stringcopy(val, 0);
3188 debug(DBG_ERR, "malloc failed");
3192 conf->host = stringcopy(val, 0);
3194 debug(DBG_ERR, "malloc failed");
3200 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3201 conf->type = protoname2int(conftype);
3202 conf->pdef = &protodefs[conf->type];
3203 if (!conf->pdef->name) {
3204 debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3210 if (!conf->confrewritein)
3211 conf->confrewritein = rewriteinalias;
3213 free(rewriteinalias);
3214 rewriteinalias = NULL;
3216 if (retryinterval != LONG_MIN) {
3217 if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
3218 debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
3221 conf->retryinterval = (uint8_t)retryinterval;
3223 conf->retryinterval = 255;
3225 if (retrycount != LONG_MIN) {
3226 if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
3227 debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
3230 conf->retrycount = (uint8_t)retrycount;
3232 conf->retrycount = 255;
3235 if (!mergesrvconf(resconf, conf))
3239 if (conf->dynamiclookupcommand) {
3240 free(conf->dynamiclookupcommand);
3241 conf->dynamiclookupcommand = NULL;
3245 if (resconf || !conf->dynamiclookupcommand) {
3246 if (!compileserverconfig(conf, block))
3253 if (!list_push(srvconfs, conf)) {
3254 debug(DBG_ERR, "malloc failed");
3261 free(rewriteinalias);
3262 freeclsrvconf(conf);
3266 int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3267 char **servers = NULL, **accservers = NULL, *msg = NULL;
3268 uint8_t accresp = 0;
3270 debug(DBG_DBG, "confrealm_cb called for %s", block);
3272 if (!getgenericconfig(cf, block,
3273 "server", CONF_MSTR, &servers,
3274 "accountingServer", CONF_MSTR, &accservers,
3275 "ReplyMessage", CONF_STR, &msg,
3276 "AccountingResponse", CONF_BLN, &accresp,
3279 debugx(1, DBG_ERR, "configuration error");
3281 addrealm(realms, val, servers, accservers, msg, accresp);
3285 int conftls_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3288 debug(DBG_DBG, "conftls_cb called for %s", block);
3290 conf = malloc(sizeof(struct tls));
3292 debug(DBG_ERR, "conftls_cb: malloc failed");
3295 memset(conf, 0, sizeof(struct tls));
3297 if (!getgenericconfig(cf, block,
3298 "CACertificateFile", CONF_STR, &conf->cacertfile,
3299 "CACertificatePath", CONF_STR, &conf->cacertpath,
3300 "CertificateFile", CONF_STR, &conf->certfile,
3301 "CertificateKeyFile", CONF_STR, &conf->certkeyfile,
3302 "CertificateKeyPassword", CONF_STR, &conf->certkeypwd,
3303 "CRLCheck", CONF_BLN, &conf->crlcheck,
3306 debug(DBG_ERR, "conftls_cb: configuration error in block %s", val);
3309 if (!conf->certfile || !conf->certkeyfile) {
3310 debug(DBG_ERR, "conftls_cb: TLSCertificateFile and TLSCertificateKeyFile must be specified in block %s", val);
3313 if (!conf->cacertfile && !conf->cacertpath) {
3314 debug(DBG_ERR, "conftls_cb: CA Certificate file or path need to be specified in block %s", val);
3318 conf->name = stringcopy(val, 0);
3320 debug(DBG_ERR, "conftls_cb: malloc failed");
3324 if (!hash_insert(tlsconfs, val, strlen(val), conf)) {
3325 debug(DBG_ERR, "conftls_cb: malloc failed");
3329 debug(DBG_DBG, "conftls_cb: added TLS block %s", val);
3333 free(conf->cacertfile);
3334 free(conf->cacertpath);
3335 free(conf->certfile);
3336 free(conf->certkeyfile);
3337 free(conf->certkeypwd);
3342 int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3343 char **rmattrs = NULL, **rmvattrs = NULL, **addattrs = NULL, **modattrs = NULL;
3345 debug(DBG_DBG, "confrewrite_cb called for %s", block);
3347 if (!getgenericconfig(cf, block,
3348 "removeAttribute", CONF_MSTR, &rmattrs,
3349 "removeVendorAttribute", CONF_MSTR, &rmvattrs,
3350 "addAttribute", CONF_MSTR, &addattrs,
3351 "modifyAttribute", CONF_MSTR, &modattrs,
3354 debugx(1, DBG_ERR, "configuration error");
3355 addrewrite(val, rmattrs, rmvattrs, addattrs, modattrs);
3359 void getmainconfig(const char *configfile) {
3360 long int loglevel = LONG_MIN;
3361 struct gconffile *cfs;
3363 cfs = openconfigfile(configfile);
3364 memset(&options, 0, sizeof(options));
3366 clconfs = list_create();
3368 debugx(1, DBG_ERR, "malloc failed");
3370 srvconfs = list_create();
3372 debugx(1, DBG_ERR, "malloc failed");
3374 realms = list_create();
3376 debugx(1, DBG_ERR, "malloc failed");
3378 tlsconfs = hash_create();
3380 debugx(1, DBG_ERR, "malloc failed");
3382 rewriteconfs = hash_create();
3384 debugx(1, DBG_ERR, "malloc failed");
3386 if (!getgenericconfig(&cfs, NULL,
3387 "ListenUDP", CONF_MSTR, &options.listenudp,
3388 "ListenTCP", CONF_MSTR, &options.listentcp,
3389 "ListenTLS", CONF_MSTR, &options.listentls,
3390 "ListenDTLS", CONF_MSTR, &options.listendtls,
3391 "ListenAccountingUDP", CONF_MSTR, &options.listenaccudp,
3392 "SourceUDP", CONF_STR, &options.sourceudp,
3393 "SourceTCP", CONF_STR, &options.sourcetcp,
3394 "SourceTLS", CONF_STR, &options.sourcetls,
3395 "SourceDTLS", CONF_STR, &options.sourcedtls,
3396 "LogLevel", CONF_LINT, &loglevel,
3397 "LogDestination", CONF_STR, &options.logdestination,
3398 "LoopPrevention", CONF_BLN, &options.loopprevention,
3399 "Client", CONF_CBK, confclient_cb, NULL,
3400 "Server", CONF_CBK, confserver_cb, NULL,
3401 "Realm", CONF_CBK, confrealm_cb, NULL,
3402 "TLS", CONF_CBK, conftls_cb, NULL,
3403 "Rewrite", CONF_CBK, confrewrite_cb, NULL,
3406 debugx(1, DBG_ERR, "configuration error");
3408 if (loglevel != LONG_MIN) {
3409 if (loglevel < 1 || loglevel > 4)
3410 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3 or 4", configfile, loglevel);
3411 options.loglevel = (uint8_t)loglevel;
3415 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile) {
3418 while ((c = getopt(argc, argv, "c:d:fpv")) != -1) {
3421 *configfile = optarg;
3424 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3425 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3426 *loglevel = *optarg - '0';
3435 debugx(0, DBG_ERR, "radsecproxy revision $Rev$");
3440 if (!(argc - optind))
3444 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -p ] [ -v ]", argv[0]);
3448 int daemon(int a, int b) {
3456 for (i = 0; i < 3; i++) {
3458 open("/dev/null", O_RDWR);
3464 void *sighandler(void *arg) {
3469 sigemptyset(&sigset);
3470 sigaddset(&sigset, SIGPIPE);
3471 sigwait(&sigset, &sig);
3472 /* only get SIGPIPE right now, so could simplify below code */
3475 /* completely ignoring this */
3478 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3481 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3486 int main(int argc, char **argv) {
3489 struct list_node *entry;
3490 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3491 char *configfile = NULL;
3492 struct clsrvconf *srvconf;
3495 debug_init("radsecproxy");
3496 debug_set_level(DEBUG_LEVEL);
3498 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile);
3500 debug_set_level(loglevel);
3501 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3503 options.loglevel = loglevel;
3504 else if (options.loglevel)
3505 debug_set_level(options.loglevel);
3507 debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
3508 free(options.logdestination);
3510 if (!list_first(clconfs))
3511 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3512 if (!list_first(realms))
3513 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3516 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3518 if (!foreground && (daemon(0, 0) < 0))
3519 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3521 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3523 sigemptyset(&sigset);
3524 /* exit on all but SIGPIPE, ignore more? */
3525 sigaddset(&sigset, SIGPIPE);
3526 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3527 pthread_create(&sigth, NULL, sighandler, NULL);
3529 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3530 srvconf = (struct clsrvconf *)entry->data;
3531 if (srvconf->dynamiclookupcommand)
3533 if (!addserver(srvconf))
3534 debugx(1, DBG_ERR, "failed to add server");
3535 if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
3536 (void *)(srvconf->servers)))
3537 debugx(1, DBG_ERR, "pthread_create failed");
3539 /* srcprotores for UDP no longer needed */
3540 if (srcprotores[RAD_UDP]) {
3541 freeaddrinfo(srcprotores[RAD_UDP]);
3542 srcprotores[RAD_UDP] = NULL;
3545 for (i = 0; protodefs[i].name; i++)
3546 if (protodefs[i].initextra)
3547 protodefs[i].initextra();
3549 if (find_clconf_type(RAD_TCP, NULL))
3550 createlisteners(RAD_TCP, options.listentcp);
3552 if (find_clconf_type(RAD_TLS, NULL))
3553 createlisteners(RAD_TLS, options.listentls);
3555 if (find_clconf_type(RAD_DTLS, NULL))
3556 createlisteners(RAD_DTLS, options.listendtls);
3558 if (find_clconf_type(RAD_UDP, NULL)) {
3559 createlisteners(RAD_UDP, options.listenudp);
3560 if (options.listenaccudp)
3561 createlisteners(RAD_UDP, options.listenaccudp);
3564 /* just hang around doing nothing, anything to do here? */