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 /* Code contributions from:
11 * Arne Schwabe <schwabe at uni-paderborn.de>
14 /* For UDP there is one server instance consisting of udpserverrd and udpserverth
15 * rd is responsible for init and launching wr
16 * For TLS there is a server instance that launches tlsserverrd for each TLS peer
17 * each tlsserverrd launches tlsserverwr
18 * For each UDP/TLS peer there is clientrd and clientwr, clientwr is responsible
19 * for init and launching rd
21 * serverrd will receive a request, processes it and puts it in the requestq of
22 * the appropriate clientwr
23 * clientwr monitors its requestq and sends requests
24 * clientrd looks for responses, processes them and puts them in the replyq of
25 * the peer the request came from
26 * serverwr monitors its reply and sends replies
28 * In addition to the main thread, we have:
29 * If UDP peers are configured, there will be 2 + 2 * #peers UDP threads
30 * If TLS peers are configured, there will initially be 2 * #peers TLS threads
31 * For each TLS peer connecting to us there will be 2 more TLS threads
32 * This is only for connected peers
33 * Example: With 3 UDP peer and 30 TLS peers, there will be a max of
34 * 1 + (2 + 2 * 3) + (2 * 30) + (2 * 30) = 129 threads
38 * Multiple outgoing connections if not enough IDs? (multiple servers per conf?)
39 * Also useful for TCP accounting which is not yet supported?
40 * We are not removing client requests from dynamic servers, see removeclientrqs()
41 * Reserve ID 0 for statusserver requests?
42 * Need to remove UDP clients when no activity for a while...
43 * Remove expired stuff from clients request list?
47 #include <sys/socket.h>
48 #include <netinet/in.h>
57 #include <sys/types.h>
58 #include <sys/select.h>
61 #include <arpa/inet.h>
65 #include <openssl/ssl.h>
66 #include <openssl/rand.h>
67 #include <openssl/err.h>
68 #include <openssl/md5.h>
69 #include <openssl/hmac.h>
70 #include <openssl/x509v3.h>
76 #include "radsecproxy.h"
82 static struct options options;
83 static struct list *clconfs, *srvconfs;
85 struct hash *tlsconfs, *rewriteconfs;
87 static struct addrinfo *srcprotores[4] = { NULL, NULL, NULL, NULL };
89 static pthread_mutex_t *ssl_locks = NULL;
90 static long *ssl_lock_count;
94 /* minimum required declarations to avoid reordering code */
95 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id);
96 int dynamicconfig(struct server *server);
97 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
98 void freerealm(struct realm *realm);
99 void freeclsrvconf(struct clsrvconf *conf);
100 void freerq(struct request *rq);
101 void freerqoutdata(struct rqout *rqout);
102 void rmclientrq(struct request *rq, uint8_t id);
104 static const struct protodefs protodefs[] = {
105 { "udp", /* UDP, assuming RAD_UDP defined as 0 */
106 NULL, /* secretdefault */
107 SOCK_DGRAM, /* socktype */
108 "1812", /* portdefault */
109 REQUEST_RETRY_COUNT, /* retrycountdefault */
110 10, /* retrycountmax */
111 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
112 60, /* retryintervalmax */
113 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
114 udpserverrd, /* listener */
115 &options.sourceudp, /* srcaddrport */
116 NULL, /* connecter */
117 NULL, /* clientconnreader */
118 clientradputudp, /* clientradput */
119 addclientudp, /* addclient */
120 addserverextraudp, /* addserverextra */
121 initextraudp /* initextra */
123 { "tls", /* TLS, assuming RAD_TLS defined as 1 */
124 "mysecret", /* secretdefault */
125 SOCK_STREAM, /* socktype */
126 "2083", /* portdefault */
127 0, /* retrycountdefault */
128 0, /* retrycountmax */
129 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
130 60, /* retryintervalmax */
131 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
132 tlslistener, /* listener */
133 &options.sourcetls, /* srcaddrport */
134 tlsconnect, /* connecter */
135 tlsclientrd, /* clientconnreader */
136 clientradputtls, /* clientradput */
137 NULL, /* addclient */
138 NULL, /* addserverextra */
141 { "tcp", /* TCP, assuming RAD_TCP defined as 2 */
142 NULL, /* secretdefault */
143 SOCK_STREAM, /* socktype */
144 "1812", /* portdefault */
145 0, /* retrycountdefault */
146 0, /* retrycountmax */
147 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
148 60, /* retryintervalmax */
149 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
150 tcplistener, /* listener */
151 &options.sourcetcp, /* srcaddrport */
152 tcpconnect, /* connecter */
153 tcpclientrd, /* clientconnreader */
154 clientradputtcp, /* clientradput */
155 NULL, /* addclient */
156 NULL, /* addserverextra */
159 { "dtls", /* DTLS, assuming RAD_DTLS defined as 3 */
160 "mysecret", /* secretdefault */
161 SOCK_DGRAM, /* socktype */
162 "2083", /* portdefault */
163 REQUEST_RETRY_COUNT, /* retrycountdefault */
164 10, /* retrycountmax */
165 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
166 60, /* retryintervalmax */
167 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
168 udpdtlsserverrd, /* listener */
169 &options.sourcedtls, /* srcaddrport */
170 dtlsconnect, /* connecter */
171 dtlsclientrd, /* clientconnreader */
172 clientradputdtls, /* clientradput */
173 NULL, /* addclient */
174 addserverextradtls, /* addserverextra */
175 initextradtls /* initextra */
181 uint8_t protoname2int(const char *name) {
184 for (i = 0; protodefs[i].name && strcasecmp(protodefs[i].name, name); i++);
188 /* callbacks for making OpenSSL thread safe */
189 unsigned long ssl_thread_id() {
190 return (unsigned long)pthread_self();
193 void ssl_locking_callback(int mode, int type, const char *file, int line) {
194 if (mode & CRYPTO_LOCK) {
195 pthread_mutex_lock(&ssl_locks[type]);
196 ssl_lock_count[type]++;
198 pthread_mutex_unlock(&ssl_locks[type]);
201 static int pem_passwd_cb(char *buf, int size, int rwflag, void *userdata) {
202 int pwdlen = strlen(userdata);
203 if (rwflag != 0 || pwdlen > size) /* not for decryption or too large */
205 memcpy(buf, userdata, pwdlen);
209 static int verify_cb(int ok, X509_STORE_CTX *ctx) {
214 err_cert = X509_STORE_CTX_get_current_cert(ctx);
215 err = X509_STORE_CTX_get_error(ctx);
216 depth = X509_STORE_CTX_get_error_depth(ctx);
218 if (depth > MAX_CERT_DEPTH) {
220 err = X509_V_ERR_CERT_CHAIN_TOO_LONG;
221 X509_STORE_CTX_set_error(ctx, err);
225 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
226 debug(DBG_WARN, "verify error: num=%d:%s:depth=%d:%s", err, X509_verify_cert_error_string(err), depth, buf);
229 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
230 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf, 256);
231 debug(DBG_WARN, "\tIssuer=%s", buf);
233 case X509_V_ERR_CERT_NOT_YET_VALID:
234 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
235 debug(DBG_WARN, "\tCertificate not yet valid");
237 case X509_V_ERR_CERT_HAS_EXPIRED:
238 debug(DBG_WARN, "Certificate has expired");
240 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
241 debug(DBG_WARN, "Certificate no longer valid (after notAfter)");
246 printf("certificate verify returns %d\n", ok);
251 struct addrinfo *getsrcprotores(uint8_t type) {
252 return srcprotores[type];
255 int resolvepeer(struct clsrvconf *conf, int ai_flags) {
256 struct addrinfo hints, *addrinfo, *res;
260 slash = conf->host ? strchr(conf->host, '/') : NULL;
264 debug(DBG_WARN, "resolvepeer: prefix length must be specified after the / in %s", conf->host);
268 if (*s < '0' || *s > '9') {
269 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
272 plen = atoi(slash + 1);
273 if (plen < 0 || plen > 128) {
274 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
279 memset(&hints, 0, sizeof(hints));
280 hints.ai_socktype = conf->pdef->socktype;
281 hints.ai_family = AF_UNSPEC;
282 hints.ai_flags = ai_flags;
283 if (!conf->host && !conf->port) {
284 /* getaddrinfo() doesn't like host and port to be NULL */
285 if (getaddrinfo(conf->host, conf->pdef->portdefault, &hints, &addrinfo)) {
286 debug(DBG_WARN, "resolvepeer: can't resolve (null) port (null)");
289 for (res = addrinfo; res; res = res->ai_next)
290 port_set(res->ai_addr, 0);
293 hints.ai_flags |= AI_NUMERICHOST;
294 if (getaddrinfo(conf->host, conf->port, &hints, &addrinfo)) {
295 debug(DBG_WARN, "resolvepeer: can't resolve %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
300 switch (addrinfo->ai_family) {
303 debug(DBG_WARN, "resolvepeer: prefix length must be <= 32 in %s", conf->host);
304 freeaddrinfo(addrinfo);
311 debug(DBG_WARN, "resolvepeer: prefix must be IPv4 or IPv6 in %s", conf->host);
312 freeaddrinfo(addrinfo);
315 conf->prefixlen = plen;
317 conf->prefixlen = 255;
320 freeaddrinfo(conf->addrinfo);
321 conf->addrinfo = addrinfo;
325 char *parsehostport(char *s, struct clsrvconf *conf, char *default_port) {
330 /* allow literal addresses and port, e.g. [2001:db8::1]:1812 */
334 for (; *p && *p != ']' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
336 debugx(1, DBG_ERR, "no ] matching initial [");
340 for (; *p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
343 debugx(1, DBG_ERR, "missing host/address");
345 conf->host = stringcopy(field, p - field);
348 if (*p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n')
349 debugx(1, DBG_ERR, "unexpected character after ]");
352 /* port number or service name is specified */;
354 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
356 debugx(1, DBG_ERR, "syntax error, : but no following port");
357 conf->port = stringcopy(field, p - field);
359 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
363 struct clsrvconf *resolve_hostport(uint8_t type, char *lconf, char *default_port) {
364 struct clsrvconf *conf;
366 conf = malloc(sizeof(struct clsrvconf));
368 debugx(1, DBG_ERR, "malloc failed");
369 memset(conf, 0, sizeof(struct clsrvconf));
371 conf->pdef = &protodefs[conf->type];
373 parsehostport(lconf, conf, default_port);
374 if (!strcmp(conf->host, "*")) {
379 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
380 if (!resolvepeer(conf, AI_PASSIVE))
381 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
385 void freeclsrvres(struct clsrvconf *res) {
389 freeaddrinfo(res->addrinfo);
393 int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
395 struct addrinfo *res;
397 for (res = addrinfo; res; res = res->ai_next) {
398 if (family != AF_UNSPEC && family != res->ai_family)
400 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
402 debug(DBG_WARN, "bindtoaddr: socket failed");
406 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
409 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
411 if (!bind(s, res->ai_addr, res->ai_addrlen))
413 debug(DBG_WARN, "bindtoaddr: bind failed");
419 int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src) {
421 struct addrinfo *res;
424 for (res = addrinfo; res; res = res->ai_next) {
425 s = bindtoaddr(src, res->ai_family, 1, 1);
427 debug(DBG_WARN, "connecttoserver: socket failed");
430 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
432 debug(DBG_WARN, "connecttoserver: connect failed");
439 /* returns 1 if the len first bits are equal, else 0 */
440 int prefixmatch(void *a1, void *a2, uint8_t len) {
441 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
443 if (l && memcmp(a1, a2, l))
448 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
451 /* returns next config with matching address, or NULL */
452 struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur) {
453 struct sockaddr_in6 *sa6 = NULL;
454 struct in_addr *a4 = NULL;
455 struct addrinfo *res;
456 struct list_node *entry;
457 struct clsrvconf *conf;
459 if (addr->sa_family == AF_INET6) {
460 sa6 = (struct sockaddr_in6 *)addr;
461 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
462 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
466 a4 = &((struct sockaddr_in *)addr)->sin_addr;
468 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
469 conf = (struct clsrvconf *)entry->data;
470 if (conf->type == type) {
471 if (conf->prefixlen == 255) {
472 for (res = conf->addrinfo; res; res = res->ai_next)
473 if ((a4 && res->ai_family == AF_INET &&
474 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
475 (sa6 && res->ai_family == AF_INET6 &&
476 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16))) {
482 res = conf->addrinfo;
484 ((a4 && res->ai_family == AF_INET &&
485 prefixmatch(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, conf->prefixlen)) ||
486 (sa6 && res->ai_family == AF_INET6 &&
487 prefixmatch(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, conf->prefixlen)))) {
498 struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
499 return find_conf(type, addr, clconfs, cur);
502 struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
503 return find_conf(type, addr, srvconfs, cur);
506 /* returns next config of given type, or NULL */
507 struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
508 struct list_node *entry;
509 struct clsrvconf *conf;
511 for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
512 conf = (struct clsrvconf *)entry->data;
513 if (conf->type == type) {
522 struct queue *newqueue() {
525 q = malloc(sizeof(struct queue));
527 debugx(1, DBG_ERR, "malloc failed");
528 q->entries = list_create();
530 debugx(1, DBG_ERR, "malloc failed");
531 pthread_mutex_init(&q->mutex, NULL);
532 pthread_cond_init(&q->cond, NULL);
536 void removequeue(struct queue *q) {
537 struct list_node *entry;
541 pthread_mutex_lock(&q->mutex);
542 for (entry = list_first(q->entries); entry; entry = list_next(entry))
543 freerq((struct request *)entry);
544 list_destroy(q->entries);
545 pthread_cond_destroy(&q->cond);
546 pthread_mutex_unlock(&q->mutex);
547 pthread_mutex_destroy(&q->mutex);
551 void freebios(struct queue *q) {
554 pthread_mutex_lock(&q->mutex);
555 while ((bio = (BIO *)list_shift(q->entries)))
557 pthread_mutex_unlock(&q->mutex);
561 struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
562 struct client *new = malloc(sizeof(struct client));
565 debug(DBG_ERR, "malloc failed");
570 pthread_mutex_lock(conf->lock);
571 if (!conf->clients) {
572 conf->clients = list_create();
573 if (!conf->clients) {
575 pthread_mutex_unlock(conf->lock);
576 debug(DBG_ERR, "malloc failed");
581 memset(new, 0, sizeof(struct client));
583 if (conf->pdef->addclient)
584 conf->pdef->addclient(new);
586 new->replyq = newqueue();
587 list_push(conf->clients, new);
589 pthread_mutex_unlock(conf->lock);
593 void removeclient(struct client *client) {
594 struct clsrvconf *conf;
599 pthread_mutex_lock(conf->lock);
601 removequeue(client->replyq);
602 list_removedata(conf->clients, client);
606 pthread_mutex_unlock(conf->lock);
609 void removeclientrqs(struct client *client) {
610 struct list_node *entry;
611 struct server *server;
615 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
616 server = ((struct clsrvconf *)entry->data)->servers;
619 for (i = 0; i < MAX_REQUESTS; i++) {
620 rqout = server->requests + i;
621 pthread_mutex_lock(rqout->lock);
622 if (rqout->rq && rqout->rq->from == client)
623 freerqoutdata(rqout);
624 pthread_mutex_unlock(rqout->lock);
629 void freeserver(struct server *server, uint8_t destroymutex) {
630 struct rqout *rqout, *end;
635 if (server->requests) {
636 rqout = server->requests;
637 for (end = rqout + MAX_REQUESTS; rqout < end; rqout++) {
638 freerqoutdata(rqout);
639 pthread_mutex_destroy(rqout->lock);
642 free(server->requests);
645 freebios(server->rbios);
646 free(server->dynamiclookuparg);
648 SSL_free(server->ssl);
650 pthread_mutex_destroy(&server->lock);
651 pthread_cond_destroy(&server->newrq_cond);
652 pthread_mutex_destroy(&server->newrq_mutex);
657 int addserver(struct clsrvconf *conf) {
658 struct clsrvconf *res;
663 debug(DBG_ERR, "addserver: currently works with just one server per conf");
666 conf->servers = malloc(sizeof(struct server));
667 if (!conf->servers) {
668 debug(DBG_ERR, "malloc failed");
671 memset(conf->servers, 0, sizeof(struct server));
672 conf->servers->conf = conf;
675 if (type == RAD_DTLS)
676 conf->servers->rbios = newqueue();
678 if (!srcprotores[type]) {
679 res = resolve_hostport(type, *conf->pdef->srcaddrport, NULL);
680 srcprotores[type] = res->addrinfo;
681 res->addrinfo = NULL;
685 conf->servers->sock = -1;
686 if (conf->pdef->addserverextra)
687 conf->pdef->addserverextra(conf);
689 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct rqout));
690 if (!conf->servers->requests) {
691 debug(DBG_ERR, "malloc failed");
694 for (i = 0; i < MAX_REQUESTS; i++) {
695 conf->servers->requests[i].lock = malloc(sizeof(pthread_mutex_t));
696 if (!conf->servers->requests[i].lock) {
697 debug(DBG_ERR, "malloc failed");
700 if (pthread_mutex_init(conf->servers->requests[i].lock, NULL)) {
701 debug(DBG_ERR, "mutex init failed");
702 free(conf->servers->requests[i].lock);
703 conf->servers->requests[i].lock = NULL;
707 if (pthread_mutex_init(&conf->servers->lock, NULL)) {
708 debug(DBG_ERR, "mutex init failed");
711 conf->servers->newrq = 0;
712 if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
713 debug(DBG_ERR, "mutex init failed");
714 pthread_mutex_destroy(&conf->servers->lock);
717 if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
718 debug(DBG_ERR, "mutex init failed");
719 pthread_mutex_destroy(&conf->servers->newrq_mutex);
720 pthread_mutex_destroy(&conf->servers->lock);
727 freeserver(conf->servers, 0);
728 conf->servers = NULL;
732 int subjectaltnameaddr(X509 *cert, int family, struct in6_addr *addr) {
733 int loc, i, l, n, r = 0;
736 STACK_OF(GENERAL_NAME) *alt;
739 debug(DBG_DBG, "subjectaltnameaddr");
741 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
745 ex = X509_get_ext(cert, loc);
746 alt = X509V3_EXT_d2i(ex);
750 n = sk_GENERAL_NAME_num(alt);
751 for (i = 0; i < n; i++) {
752 gn = sk_GENERAL_NAME_value(alt, i);
753 if (gn->type != GEN_IPADD)
756 v = (char *)ASN1_STRING_data(gn->d.ia5);
757 l = ASN1_STRING_length(gn->d.ia5);
758 if (((family == AF_INET && l == sizeof(struct in_addr)) || (family == AF_INET6 && l == sizeof(struct in6_addr)))
759 && !memcmp(v, &addr, l)) {
764 GENERAL_NAMES_free(alt);
768 int cnregexp(X509 *cert, char *exact, regex_t *regex) {
775 nm = X509_get_subject_name(cert);
778 loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
781 e = X509_NAME_get_entry(nm, loc);
782 t = X509_NAME_ENTRY_get_data(e);
783 v = (char *) ASN1_STRING_data(t);
784 l = ASN1_STRING_length(t);
788 if (l == strlen(exact) && !strncasecmp(exact, v, l))
791 s = stringcopy((char *)v, l);
793 debug(DBG_ERR, "malloc failed");
796 if (regexec(regex, s, 0, NULL, 0)) {
807 int subjectaltnameregexp(X509 *cert, int type, char *exact, regex_t *regex) {
808 int loc, i, l, n, r = 0;
811 STACK_OF(GENERAL_NAME) *alt;
814 debug(DBG_DBG, "subjectaltnameregexp");
816 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
820 ex = X509_get_ext(cert, loc);
821 alt = X509V3_EXT_d2i(ex);
825 n = sk_GENERAL_NAME_num(alt);
826 for (i = 0; i < n; i++) {
827 gn = sk_GENERAL_NAME_value(alt, i);
828 if (gn->type != type)
831 v = (char *)ASN1_STRING_data(gn->d.ia5);
832 l = ASN1_STRING_length(gn->d.ia5);
836 printfchars(NULL, gn->type == GEN_DNS ? "dns" : "uri", NULL, v, l);
839 if (memcmp(v, exact, l))
842 s = stringcopy((char *)v, l);
844 debug(DBG_ERR, "malloc failed");
847 if (regexec(regex, s, 0, NULL, 0)) {
856 GENERAL_NAMES_free(alt);
860 X509 *verifytlscert(SSL *ssl) {
864 if (SSL_get_verify_result(ssl) != X509_V_OK) {
865 debug(DBG_ERR, "verifytlscert: basic validation failed");
866 while ((error = ERR_get_error()))
867 debug(DBG_ERR, "verifytlscert: TLS: %s", ERR_error_string(error, NULL));
871 cert = SSL_get_peer_certificate(ssl);
873 debug(DBG_ERR, "verifytlscert: failed to obtain certificate");
877 int verifyconfcert(X509 *cert, struct clsrvconf *conf) {
879 uint8_t type = 0; /* 0 for DNS, AF_INET for IPv4, AF_INET6 for IPv6 */
880 struct in6_addr addr;
882 if (conf->certnamecheck && conf->prefixlen == 255) {
883 if (inet_pton(AF_INET, conf->host, &addr))
885 else if (inet_pton(AF_INET6, conf->host, &addr))
888 r = type ? subjectaltnameaddr(cert, type, &addr) : subjectaltnameregexp(cert, GEN_DNS, conf->host, NULL);
891 debug(DBG_WARN, "verifyconfcert: No subjectaltname matching %s %s", type ? "address" : "host", conf->host);
894 debug(DBG_DBG, "verifyconfcert: Found subjectaltname matching %s %s", type ? "address" : "host", conf->host);
896 if (!cnregexp(cert, conf->host, NULL)) {
897 debug(DBG_WARN, "verifyconfcert: cn not matching host %s", conf->host);
900 debug(DBG_DBG, "verifyconfcert: Found cn matching host %s", conf->host);
903 if (conf->certcnregex) {
904 if (cnregexp(cert, NULL, conf->certcnregex) < 1) {
905 debug(DBG_WARN, "verifyconfcert: CN not matching regex");
908 debug(DBG_DBG, "verifyconfcert: CN matching regex");
910 if (conf->certuriregex) {
911 if (subjectaltnameregexp(cert, GEN_URI, NULL, conf->certuriregex) < 1) {
912 debug(DBG_WARN, "verifyconfcert: subjectaltname URI not matching regex");
915 debug(DBG_DBG, "verifyconfcert: subjectaltname URI matching regex");
920 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
922 if (ATTRTYPE(attrs) == type)
924 length -= ATTRLEN(attrs);
925 attrs += ATTRLEN(attrs);
930 void freerq(struct request *rq) {
933 debug(DBG_DBG, "freerq: called with refcount %d", rq->refcount);
936 if (rq->origusername)
937 free(rq->origusername);
943 radmsg_free(rq->msg);
947 void freerqoutdata(struct rqout *rqout) {
955 memset(&rqout->expiry, 0, sizeof(struct timeval));
958 void sendrq(struct server *to, struct request *rq) {
961 pthread_mutex_lock(&to->newrq_mutex);
962 /* might simplify if only try nextid, might be ok */
963 for (i = to->nextid; i < MAX_REQUESTS; i++) {
964 if (!to->requests[i].rq) {
965 pthread_mutex_lock(to->requests[i].lock);
966 if (!to->requests[i].rq)
968 pthread_mutex_unlock(to->requests[i].lock);
971 if (i == MAX_REQUESTS) {
972 for (i = 0; i < to->nextid; i++) {
973 if (!to->requests[i].rq) {
974 pthread_mutex_lock(to->requests[i].lock);
975 if (!to->requests[i].rq)
977 pthread_mutex_unlock(to->requests[i].lock);
980 if (i == to->nextid) {
981 debug(DBG_WARN, "sendrq: no room in queue, dropping request");
982 rmclientrq(rq, rq->msg->id);
988 rq->msg->id = (uint8_t)i;
989 rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
991 pthread_mutex_unlock(to->requests[i].lock);
992 debug(DBG_ERR, "sendrq: radmsg2buf failed");
993 rmclientrq(rq, rq->msg->id);
998 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->host);
999 to->requests[i].rq = rq;
1000 pthread_mutex_unlock(to->requests[i].lock);
1005 debug(DBG_DBG, "sendrq: signalling client writer");
1006 pthread_cond_signal(&to->newrq_cond);
1010 pthread_mutex_unlock(&to->newrq_mutex);
1013 void sendreply(struct request *rq) {
1015 struct client *to = rq->from;
1018 rq->replybuf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
1019 radmsg_free(rq->msg);
1021 if (!rq->replybuf) {
1023 debug(DBG_ERR, "sendreply: radmsg2buf failed");
1027 pthread_mutex_lock(&to->replyq->mutex);
1028 first = list_first(to->replyq->entries) == NULL;
1030 if (!list_push(to->replyq->entries, rq)) {
1031 pthread_mutex_unlock(&to->replyq->mutex);
1033 debug(DBG_ERR, "sendreply: malloc failed");
1038 debug(DBG_DBG, "signalling server writer");
1039 pthread_cond_signal(&to->replyq->cond);
1041 pthread_mutex_unlock(&to->replyq->mutex);
1044 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1045 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1046 static unsigned char first = 1;
1047 static EVP_MD_CTX mdctx;
1048 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1049 unsigned int md_len;
1050 uint8_t i, offset = 0, out[128];
1052 pthread_mutex_lock(&lock);
1054 EVP_MD_CTX_init(&mdctx);
1060 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1061 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1062 !EVP_DigestUpdate(&mdctx, input, 16) ||
1063 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1065 pthread_mutex_unlock(&lock);
1068 for (i = 0; i < 16; i++)
1069 out[offset + i] = hash[i] ^ in[offset + i];
1070 input = out + offset - 16;
1075 memcpy(in, out, len);
1076 pthread_mutex_unlock(&lock);
1080 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1081 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1082 static unsigned char first = 1;
1083 static EVP_MD_CTX mdctx;
1084 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1085 unsigned int md_len;
1086 uint8_t i, offset = 0, out[128];
1088 pthread_mutex_lock(&lock);
1090 EVP_MD_CTX_init(&mdctx);
1096 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1097 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1098 !EVP_DigestUpdate(&mdctx, input, 16) ||
1099 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1101 pthread_mutex_unlock(&lock);
1104 for (i = 0; i < 16; i++)
1105 out[offset + i] = hash[i] ^ in[offset + i];
1106 input = in + offset;
1111 memcpy(in, out, len);
1112 pthread_mutex_unlock(&lock);
1116 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1117 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1118 static unsigned char first = 1;
1119 static EVP_MD_CTX mdctx;
1120 unsigned char hash[EVP_MAX_MD_SIZE];
1121 unsigned int md_len;
1124 pthread_mutex_lock(&lock);
1126 EVP_MD_CTX_init(&mdctx);
1131 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
1132 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
1133 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
1136 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1137 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1138 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1139 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1140 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1141 pthread_mutex_unlock(&lock);
1146 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1149 for (i = 0; i < 16; i++)
1152 for (offset = 16; offset < len; offset += 16) {
1154 printf("text + offset - 16 c(%d): ", offset / 16);
1155 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1157 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1158 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1159 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1160 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1162 pthread_mutex_unlock(&lock);
1166 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1169 for (i = 0; i < 16; i++)
1170 text[offset + i] ^= hash[i];
1174 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
1177 pthread_mutex_unlock(&lock);
1181 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1182 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1183 static unsigned char first = 1;
1184 static EVP_MD_CTX mdctx;
1185 unsigned char hash[EVP_MAX_MD_SIZE];
1186 unsigned int md_len;
1190 pthread_mutex_lock(&lock);
1192 EVP_MD_CTX_init(&mdctx);
1197 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
1198 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
1199 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
1202 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1203 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1204 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1205 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1206 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1207 pthread_mutex_unlock(&lock);
1212 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1215 for (i = 0; i < 16; i++)
1216 plain[i] = text[i] ^ hash[i];
1218 for (offset = 16; offset < len; offset += 16) {
1220 printf("text + offset - 16 c(%d): ", offset / 16);
1221 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1223 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1224 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1225 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1226 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1228 pthread_mutex_unlock(&lock);
1232 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1235 for (i = 0; i < 16; i++)
1236 plain[offset + i] = text[offset + i] ^ hash[i];
1239 memcpy(text, plain, len);
1241 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
1244 pthread_mutex_unlock(&lock);
1248 struct realm *id2realm(struct list *realmlist, char *id) {
1249 struct list_node *entry;
1250 struct realm *realm, *subrealm = NULL;
1252 /* need to do locking for subrealms and check subrealm timers */
1253 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1254 realm = (struct realm *)entry->data;
1255 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
1256 pthread_mutex_lock(&realm->subrealms_mutex);
1257 if (realm->subrealms)
1258 subrealm = id2realm(realm->subrealms, id);
1259 pthread_mutex_unlock(&realm->subrealms_mutex);
1260 return subrealm ? subrealm : realm;
1266 /* helper function, only used by removeserversubrealms() */
1267 void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1268 struct list_node *entry;
1269 struct realm *realm;
1271 for (entry = list_first(realmlist); entry;) {
1272 realm = (struct realm *)entry->data;
1273 entry = list_next(entry);
1274 if (realm->srvconfs) {
1275 list_removedata(realm->srvconfs, srv);
1276 if (!list_first(realm->srvconfs)) {
1277 list_destroy(realm->srvconfs);
1278 realm->srvconfs = NULL;
1281 if (realm->accsrvconfs) {
1282 list_removedata(realm->accsrvconfs, srv);
1283 if (!list_first(realm->accsrvconfs)) {
1284 list_destroy(realm->accsrvconfs);
1285 realm->accsrvconfs = NULL;
1289 /* remove subrealm if no servers */
1290 if (!realm->srvconfs && !realm->accsrvconfs) {
1291 list_removedata(realmlist, realm);
1297 void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1298 struct list_node *entry;
1299 struct realm *realm;
1301 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1302 realm = (struct realm *)entry->data;
1303 pthread_mutex_lock(&realm->subrealms_mutex);
1304 if (realm->subrealms) {
1305 _internal_removeserversubrealms(realm->subrealms, srv);
1306 if (!list_first(realm->subrealms)) {
1307 list_destroy(realm->subrealms);
1308 realm->subrealms = NULL;
1311 pthread_mutex_unlock(&realm->subrealms_mutex);
1315 int attrvalidate(unsigned char *attrs, int length) {
1316 while (length > 1) {
1317 if (ATTRLEN(attrs) < 2) {
1318 debug(DBG_WARN, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
1321 length -= ATTRLEN(attrs);
1323 debug(DBG_WARN, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
1326 attrs += ATTRLEN(attrs);
1329 debug(DBG_WARN, "attrvalidate: malformed packet? remaining byte after last attribute");
1333 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1334 if (len < 16 || len > 128 || len % 16) {
1335 debug(DBG_WARN, "pwdrecrypt: invalid password length");
1339 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
1340 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
1344 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
1346 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
1347 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
1353 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1356 if (!msmppdecrypt(msmpp + 2, len - 2, (uint8_t *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
1357 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
1360 if (!msmppencrypt(msmpp + 2, len - 2, (uint8_t *)newsecret, strlen(newsecret), newauth, msmpp)) {
1361 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
1367 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
1368 char *oldsecret, char *newsecret) {
1369 unsigned char *attr;
1371 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
1372 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
1373 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->rqauth))
1379 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint8_t subattr) {
1383 for (; attrs[0]; attrs += 2)
1384 if (attrs[0] == vendor && attrs[1] == subattr)
1389 /* returns 1 if entire element is to be removed, else 0 */
1390 int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
1391 uint8_t alen, sublen;
1395 if (!removevendorattrs)
1398 memcpy(&vendor, attr->v, 4);
1399 vendor = ntohl(vendor);
1400 while (*removevendorattrs && *removevendorattrs != vendor)
1401 removevendorattrs += 2;
1402 if (!*removevendorattrs)
1405 if (findvendorsubattr(removevendorattrs, vendor, -1))
1406 return 1; /* remove entire vendor attribute */
1408 sublen = attr->l - 4;
1409 subattrs = attr->v + 4;
1411 if (!attrvalidate(subattrs, sublen)) {
1412 debug(DBG_WARN, "dovendorrewrite: vendor attribute validation failed, no rewrite");
1416 while (sublen > 1) {
1417 alen = ATTRLEN(subattrs);
1419 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
1420 memmove(subattrs, subattrs + alen, sublen);
1428 void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
1429 struct list_node *n, *p;
1433 n = list_first(msg->attrs);
1435 attr = (struct tlv *)n->data;
1436 if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
1437 (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
1438 list_removedata(msg->attrs, attr);
1440 n = p ? list_next(p) : list_first(msg->attrs);
1447 int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
1448 struct list_node *n;
1451 for (n = list_first(addattrs); n; n = list_next(n)) {
1452 a = copytlv((struct tlv *)n->data);
1455 if (!radmsg_add(msg, a)) {
1463 int resizeattr(struct tlv *attr, uint8_t newlen) {
1466 if (newlen != attr->l) {
1467 newv = realloc(attr->v, newlen);
1476 int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
1477 size_t nmatch = 10, reslen = 0, start = 0;
1478 regmatch_t pmatch[10], *pfield;
1482 in = stringcopy((char *)attr->v, attr->l);
1486 if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
1491 out = modattr->replacement;
1493 for (i = start; out[i]; i++) {
1494 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1495 pfield = &pmatch[out[i + 1] - '0'];
1496 if (pfield->rm_so >= 0) {
1497 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1503 reslen += i - start;
1505 debug(DBG_WARN, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
1510 if (!resizeattr(attr, reslen)) {
1517 for (i = start; out[i]; i++) {
1518 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1519 pfield = &pmatch[out[i + 1] - '0'];
1520 if (pfield->rm_so >= 0) {
1521 memcpy(attr->v + reslen, out + start, i - start);
1522 reslen += i - start;
1523 memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1524 reslen += pfield->rm_eo - pfield->rm_so;
1531 memcpy(attr->v + reslen, out + start, i - start);
1535 int dorewritemod(struct radmsg *msg, struct list *modattrs) {
1536 struct list_node *n, *m;
1538 for (n = list_first(msg->attrs); n; n = list_next(n))
1539 for (m = list_first(modattrs); m; m = list_next(m))
1540 if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
1541 !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
1546 int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
1549 if (rewrite->removeattrs || rewrite->removevendorattrs)
1550 dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
1551 if (rewrite->addattrs && !dorewriteadd(msg, rewrite->addattrs))
1553 if (rewrite->modattrs && !dorewritemod(msg, rewrite->modattrs))
1558 int rewriteusername(struct request *rq, struct tlv *attr) {
1559 char *orig = (char *)tlv2str(attr);
1560 if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
1564 if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
1565 rq->origusername = (char *)orig;
1571 const char *radmsgtype2string(uint8_t code) {
1572 static const char *rad_msg_names[] = {
1573 "", "Access-Request", "Access-Accept", "Access-Reject",
1574 "Accounting-Request", "Accounting-Response", "", "",
1575 "", "", "", "Access-Challenge",
1576 "Status-Server", "Status-Client"
1578 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1581 void char2hex(char *h, unsigned char c) {
1582 static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
1583 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
1584 h[0] = hexdigits[c / 16];
1585 h[1] = hexdigits[c % 16];
1589 uint8_t *radattr2ascii(struct tlv *attr) {
1597 for (i = 0; i < attr->l; i++)
1598 if (attr->v[i] < 32 || attr->v[i] > 126)
1601 return (uint8_t *)stringcopy((char *)attr->v, attr->l);
1608 for (i = 0; i < attr->l; i++)
1609 if (attr->v[i] < 32 || attr->v[i] > 126) {
1611 char2hex((char *)d, attr->v[i]);
1619 void acclog(struct radmsg *msg, char *host) {
1623 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1625 debug(DBG_INFO, "acclog: accounting-request from %s without username attribute", host);
1628 username = radattr2ascii(attr);
1630 debug(DBG_INFO, "acclog: accounting-request from %s with username: %s", host, username);
1635 void respond(struct request *rq, uint8_t code, char *message) {
1639 msg = radmsg_init(code, rq->msg->id, rq->msg->auth);
1641 debug(DBG_ERR, "respond: malloc failed");
1644 if (message && *message) {
1645 attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
1646 if (!attr || !radmsg_add(msg, attr)) {
1649 debug(DBG_ERR, "respond: malloc failed");
1654 radmsg_free(rq->msg);
1656 debug(DBG_DBG, "respond: sending %s to %s", radmsgtype2string(msg->code), rq->from->conf->host);
1661 struct clsrvconf *choosesrvconf(struct list *srvconfs) {
1662 struct list_node *entry;
1663 struct clsrvconf *server, *best = NULL, *first = NULL;
1665 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1666 server = (struct clsrvconf *)entry->data;
1667 if (!server->servers)
1671 if (!server->servers->connectionok)
1673 if (!server->servers->lostrqs)
1679 if (server->servers->lostrqs < best->servers->lostrqs)
1682 return best ? best : first;
1685 struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
1686 struct clsrvconf *srvconf;
1687 char *id = (char *)tlv2str(username);
1691 *realm = id2realm(realms, id);
1696 debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
1697 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1702 if (!acc && !srvconf->servers)
1703 adddynamicrealmserver(*realm, srvconf, id);
1705 return srvconf->servers;
1709 struct request *newrequest() {
1712 rq = malloc(sizeof(struct request));
1714 debug(DBG_ERR, "newrequest: malloc failed");
1717 memset(rq, 0, sizeof(struct request));
1719 gettimeofday(&rq->created, NULL);
1723 int addclientrq(struct request *rq) {
1727 r = rq->from->rqs[rq->rqid];
1729 if (rq->udpport == r->udpport && !memcmp(rq->rqauth, r->rqauth, 16)) {
1730 gettimeofday(&now, NULL);
1731 if (now.tv_sec - r->created.tv_sec < r->from->conf->dupinterval) {
1735 debug(DBG_INFO, "radsrv: already sent reply to request with id %d from %s, resending", rq->rqid, addr2string(r->from->addr));
1740 debug(DBG_INFO, "radsrv: already got request with id %d from %s, ignoring", rq->rqid, addr2string(r->from->addr));
1747 rq->from->rqs[rq->rqid] = rq;
1751 void rmclientrq(struct request *rq, uint8_t id) {
1754 r = rq->from->rqs[id];
1757 rq->from->rqs[id] = NULL;
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 struct realm *realm = NULL;
1767 struct server *to = NULL;
1768 struct client *from = rq->from;
1770 msg = buf2radmsg(rq->buf, (uint8_t *)from->conf->secret, NULL);
1775 debug(DBG_WARN, "radsrv: message validation failed, ignoring packet");
1782 memcpy(rq->rqauth, msg->auth, 16);
1784 debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
1785 if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
1786 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1790 if (!addclientrq(rq))
1793 if (msg->code == RAD_Status_Server) {
1794 respond(rq, RAD_Access_Accept, NULL);
1798 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1800 if (from->conf->rewritein && !dorewrite(msg, from->conf->rewritein))
1803 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1805 if (msg->code == RAD_Accounting_Request) {
1806 acclog(msg, from->conf->host);
1807 respond(rq, RAD_Accounting_Response, NULL);
1809 debug(DBG_WARN, "radsrv: ignoring access request, no username attribute");
1813 if (from->conf->rewriteusername && !rewriteusername(rq, attr)) {
1814 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1818 userascii = radattr2ascii(attr);
1821 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
1823 to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
1825 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1830 if (realm->message && msg->code == RAD_Access_Request) {
1831 debug(DBG_INFO, "radsrv: sending reject to %s for %s", from->conf->host, userascii);
1832 respond(rq, RAD_Access_Reject, realm->message);
1833 } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
1834 acclog(msg, from->conf->host);
1835 respond(rq, RAD_Accounting_Response, NULL);
1840 if (options.loopprevention && !strcmp(from->conf->name, to->conf->name)) {
1841 debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s to server %s, discarding",
1842 from->conf->name, to->conf->name);
1846 if (msg->code == RAD_Accounting_Request)
1847 memset(msg->auth, 0, 16);
1848 else if (!RAND_bytes(msg->auth, 16)) {
1849 debug(DBG_WARN, "radsrv: failed to generate random auth");
1854 printfchars(NULL, "auth", "%02x ", auth, 16);
1857 attr = radmsg_gettype(msg, RAD_Attr_User_Password);
1859 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
1860 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
1864 attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
1866 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
1867 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
1871 if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
1879 rmclientrq(rq, msg->id);
1886 void replyh(struct server *server, unsigned char *buf) {
1887 struct client *from;
1888 struct rqout *rqout;
1890 unsigned char *subattrs;
1891 uint8_t *username, *stationid, *replymsg;
1892 struct radmsg *msg = NULL;
1894 struct list_node *node;
1896 server->connectionok = 1;
1897 server->lostrqs = 0;
1899 rqout = server->requests + buf[1];
1900 pthread_mutex_lock(rqout->lock);
1901 if (!rqout->tries) {
1904 debug(DBG_INFO, "replyh: no outstanding request with this id, ignoring reply");
1908 msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rqout->rq->msg->auth);
1912 debug(DBG_WARN, "replyh: message validation failed, ignoring packet");
1915 if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
1916 && msg->code != RAD_Accounting_Response) {
1917 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
1920 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
1922 gettimeofday(&server->lastrcv, NULL);
1924 if (rqout->rq->msg->code == RAD_Status_Server) {
1925 freerqoutdata(rqout);
1926 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->host);
1930 gettimeofday(&server->lastreply, NULL);
1931 from = rqout->rq->from;
1933 if (server->conf->rewritein && !dorewrite(msg, from->conf->rewritein)) {
1934 debug(DBG_WARN, "replyh: rewritein failed");
1939 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1940 attr = (struct tlv *)node->data;
1941 if (attr->t != RAD_Attr_Vendor_Specific)
1945 if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
1948 sublen = attr->l - 4;
1949 subattrs = attr->v + 4;
1950 if (!attrvalidate(subattrs, sublen) ||
1951 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1952 rqout->rq, server->conf->secret, from->conf->secret) ||
1953 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1954 rqout->rq, server->conf->secret, from->conf->secret))
1958 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
1962 if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
1963 username = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_User_Name));
1965 stationid = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_Calling_Station_Id));
1966 replymsg = radattr2ascii(radmsg_gettype(msg, RAD_Attr_Reply_Message));
1969 debug(DBG_INFO, "%s for user %s stationid %s from %s (%s)",
1970 radmsgtype2string(msg->code), username, stationid, server->conf->host, replymsg);
1973 debug(DBG_INFO, "%s for user %s stationid %s from %s",
1974 radmsgtype2string(msg->code), username, stationid, server->conf->host);
1978 debug(DBG_INFO, "%s for user %s from %s (%s)",
1979 radmsgtype2string(msg->code), username, server->conf->host, replymsg);
1982 debug(DBG_INFO, "%s for user %s from %s",
1983 radmsgtype2string(msg->code), username, server->conf->host);
1989 msg->id = (char)rqout->rq->rqid;
1990 memcpy(msg->auth, rqout->rq->rqauth, 16);
1993 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
1996 if (rqout->rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
1997 if (!resizeattr(attr, strlen(rqout->rq->origusername))) {
1998 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
2001 memcpy(attr->v, rqout->rq->origusername, strlen(rqout->rq->origusername));
2004 if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
2005 debug(DBG_WARN, "replyh: rewriteout failed");
2009 debug(DBG_INFO, "replyh: passing reply to client %s", from->conf->name);
2010 radmsg_free(rqout->rq->msg);
2011 rqout->rq->msg = msg;
2012 rqout->rq->refcount++;
2013 sendreply(rqout->rq);
2014 freerqoutdata(rqout);
2015 pthread_mutex_unlock(rqout->lock);
2020 pthread_mutex_unlock(rqout->lock);
2024 struct request *createstatsrvrq() {
2031 rq->msg = radmsg_init(RAD_Status_Server, 0, NULL);
2034 attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
2037 if (!radmsg_add(rq->msg, attr)) {
2048 /* code for removing state not finished */
2049 void *clientwr(void *arg) {
2050 struct server *server = (struct server *)arg;
2051 struct rqout *rqout = NULL;
2052 pthread_t clientrdth;
2053 int i, secs, dynconffail = 0;
2055 struct timeval now, laststatsrv;
2056 struct timespec timeout;
2057 struct request *statsrvrq;
2058 struct clsrvconf *conf;
2060 conf = server->conf;
2062 if (server->dynamiclookuparg && !dynamicconfig(server)) {
2067 if (!conf->addrinfo && !resolvepeer(conf, 0)) {
2068 debug(DBG_WARN, "failed to resolve host %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
2072 memset(&timeout, 0, sizeof(struct timespec));
2074 if (conf->statusserver) {
2075 gettimeofday(&server->lastrcv, NULL);
2076 gettimeofday(&laststatsrv, NULL);
2079 if (conf->pdef->connecter) {
2080 if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 6 : 0, "clientwr"))
2082 server->connectionok = 1;
2083 if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
2084 debug(DBG_ERR, "clientwr: pthread_create failed");
2088 server->connectionok = 1;
2091 pthread_mutex_lock(&server->newrq_mutex);
2092 if (!server->newrq) {
2093 gettimeofday(&now, NULL);
2094 /* random 0-7 seconds */
2095 RAND_bytes(&rnd, 1);
2097 if (conf->statusserver) {
2098 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2099 if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
2100 timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
2102 if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
2103 timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
2106 if (timeout.tv_sec > now.tv_sec)
2107 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
2109 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
2112 if (server->newrq) {
2113 debug(DBG_DBG, "clientwr: got new request");
2118 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
2120 pthread_mutex_unlock(&server->newrq_mutex);
2122 for (i = 0; i < MAX_REQUESTS; i++) {
2123 if (server->clientrdgone) {
2124 pthread_join(clientrdth, NULL);
2128 for (; i < MAX_REQUESTS; i++) {
2129 rqout = server->requests + i;
2131 pthread_mutex_lock(rqout->lock);
2134 pthread_mutex_unlock(rqout->lock);
2138 if (i == MAX_REQUESTS)
2141 gettimeofday(&now, NULL);
2142 if (now.tv_sec < rqout->expiry.tv_sec) {
2143 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2144 timeout.tv_sec = rqout->expiry.tv_sec;
2145 pthread_mutex_unlock(rqout->lock);
2149 if (rqout->tries == (*rqout->rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
2150 debug(DBG_DBG, "clientwr: removing expired packet from queue");
2151 if (conf->statusserver) {
2152 if (*rqout->rq->buf == RAD_Status_Server) {
2153 debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->host);
2154 if (server->lostrqs < 255)
2158 debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->host);
2159 if (server->lostrqs < 255)
2162 freerqoutdata(rqout);
2163 pthread_mutex_unlock(rqout->lock);
2167 rqout->expiry.tv_sec = now.tv_sec + conf->retryinterval;
2168 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2169 timeout.tv_sec = rqout->expiry.tv_sec;
2171 conf->pdef->clientradput(server, rqout->rq->buf);
2172 pthread_mutex_unlock(rqout->lock);
2174 if (conf->statusserver) {
2175 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2176 gettimeofday(&now, NULL);
2177 if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
2179 statsrvrq = createstatsrvrq();
2181 debug(DBG_DBG, "clientwr: sending status server to %s", conf->host);
2182 sendrq(server, statsrvrq);
2188 conf->servers = NULL;
2189 if (server->dynamiclookuparg) {
2190 removeserversubrealms(realms, conf);
2194 freeclsrvconf(conf);
2196 freeserver(server, 1);
2197 ERR_remove_state(0);
2201 void createlistener(uint8_t type, char *arg) {
2203 struct clsrvconf *listenres;
2204 struct addrinfo *res;
2205 int s = -1, on = 1, *sp = NULL;
2207 listenres = resolve_hostport(type, arg, protodefs[type].portdefault);
2209 debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
2211 for (res = listenres->addrinfo; res; res = res->ai_next) {
2212 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
2214 debug(DBG_WARN, "createlistener: socket failed");
2217 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
2219 if (res->ai_family == AF_INET6)
2220 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
2222 if (bind(s, res->ai_addr, res->ai_addrlen)) {
2223 debug(DBG_WARN, "createlistener: bind failed");
2229 sp = malloc(sizeof(int));
2231 debugx(1, DBG_ERR, "malloc failed");
2233 if (pthread_create(&th, NULL, protodefs[type].listener, (void *)sp))
2234 debugx(1, DBG_ERR, "pthread_create failed");
2238 debugx(1, DBG_ERR, "createlistener: socket/bind failed");
2240 debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type].name,
2241 listenres->host ? listenres->host : "*", listenres->port);
2242 freeclsrvres(listenres);
2245 void createlisteners(uint8_t type, char **args) {
2249 for (i = 0; args[i]; i++)
2250 createlistener(type, args[i]);
2252 createlistener(type, NULL);
2256 void ssl_info_callback(const SSL *ssl, int where, int ret) {
2260 w = where & ~SSL_ST_MASK;
2262 if (w & SSL_ST_CONNECT)
2264 else if (w & SSL_ST_ACCEPT)
2269 if (where & SSL_CB_LOOP)
2270 debug(DBG_DBG, "%s:%s\n", s, SSL_state_string_long(ssl));
2271 else if (where & SSL_CB_ALERT) {
2272 s = (where & SSL_CB_READ) ? "read" : "write";
2273 debug(DBG_DBG, "SSL3 alert %s:%s:%s\n", s, SSL_alert_type_string_long(ret), SSL_alert_desc_string_long(ret));
2275 else if (where & SSL_CB_EXIT) {
2277 debug(DBG_DBG, "%s:failed in %s\n", s, SSL_state_string_long(ssl));
2279 debug(DBG_DBG, "%s:error in %s\n", s, SSL_state_string_long(ssl));
2284 SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
2285 SSL_CTX *ctx = NULL;
2286 STACK_OF(X509_NAME) *calist;
2289 unsigned long error;
2292 ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
2293 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
2294 for (i = 0; i < CRYPTO_num_locks(); i++) {
2295 ssl_lock_count[i] = 0;
2296 pthread_mutex_init(&ssl_locks[i], NULL);
2298 CRYPTO_set_id_callback(ssl_thread_id);
2299 CRYPTO_set_locking_callback(ssl_locking_callback);
2301 SSL_load_error_strings();
2304 while (!RAND_status()) {
2305 time_t t = time(NULL);
2306 pid_t pid = getpid();
2307 RAND_seed((unsigned char *)&t, sizeof(time_t));
2308 RAND_seed((unsigned char *)&pid, sizeof(pid));
2314 ctx = SSL_CTX_new(TLSv1_method());
2316 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2320 ctx = SSL_CTX_new(DTLSv1_method());
2322 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2324 SSL_CTX_set_read_ahead(ctx, 1);
2328 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2332 if (conf->certkeypwd) {
2333 SSL_CTX_set_default_passwd_cb_userdata(ctx, conf->certkeypwd);
2334 SSL_CTX_set_default_passwd_cb(ctx, pem_passwd_cb);
2336 if (!SSL_CTX_use_certificate_chain_file(ctx, conf->certfile) ||
2337 !SSL_CTX_use_PrivateKey_file(ctx, conf->certkeyfile, SSL_FILETYPE_PEM) ||
2338 !SSL_CTX_check_private_key(ctx) ||
2339 !SSL_CTX_load_verify_locations(ctx, conf->cacertfile, conf->cacertpath)) {
2340 while ((error = ERR_get_error()))
2341 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2342 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2347 calist = conf->cacertfile ? SSL_load_client_CA_file(conf->cacertfile) : NULL;
2348 if (!conf->cacertfile || calist) {
2349 if (conf->cacertpath) {
2351 calist = sk_X509_NAME_new_null();
2352 if (!SSL_add_dir_cert_subjects_to_stack(calist, conf->cacertpath)) {
2353 sk_X509_NAME_free(calist);
2359 while ((error = ERR_get_error()))
2360 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2361 debug(DBG_ERR, "tlscreatectx: Error adding CA subjects in TLS context %s", conf->name);
2365 ERR_clear_error(); /* add_dir_cert_subj returns errors on success */
2366 SSL_CTX_set_client_CA_list(ctx, calist);
2368 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
2369 SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
2371 if (conf->crlcheck) {
2372 x509_s = SSL_CTX_get_cert_store(ctx);
2373 X509_STORE_set_flags(x509_s, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL);
2376 debug(DBG_DBG, "tlscreatectx: created TLS context %s", conf->name);
2380 SSL_CTX *tlsgetctx(uint8_t type, char *alt1, char *alt2) {
2383 t = hash_read(tlsconfs, alt1, strlen(alt1));
2385 t = hash_read(tlsconfs, alt2, strlen(alt2));
2393 t->tlsctx = tlscreatectx(RAD_TLS, t);
2397 t->dtlsctx = tlscreatectx(RAD_DTLS, t);
2403 struct list *addsrvconfs(char *value, char **names) {
2404 struct list *conflist;
2406 struct list_node *entry;
2407 struct clsrvconf *conf = NULL;
2409 if (!names || !*names)
2412 conflist = list_create();
2414 debug(DBG_ERR, "malloc failed");
2418 for (n = 0; names[n]; n++) {
2419 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2420 conf = (struct clsrvconf *)entry->data;
2421 if (!strcasecmp(names[n], conf->name))
2425 debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
2426 list_destroy(conflist);
2429 if (!list_push(conflist, conf)) {
2430 debug(DBG_ERR, "malloc failed");
2431 list_destroy(conflist);
2434 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2439 void freerealm(struct realm *realm) {
2443 free(realm->message);
2444 regfree(&realm->regex);
2445 pthread_mutex_destroy(&realm->subrealms_mutex);
2446 if (realm->subrealms)
2447 list_destroy(realm->subrealms);
2448 if (realm->srvconfs) {
2449 /* emptying list without freeing data */
2450 while (list_shift(realm->srvconfs));
2451 list_destroy(realm->srvconfs);
2453 if (realm->accsrvconfs) {
2454 /* emptying list without freeing data */
2455 while (list_shift(realm->accsrvconfs));
2456 list_destroy(realm->accsrvconfs);
2461 struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
2463 struct realm *realm;
2464 char *s, *regex = NULL;
2466 if (*value == '/') {
2467 /* regexp, remove optional trailing / if present */
2468 if (value[strlen(value) - 1] == '/')
2469 value[strlen(value) - 1] = '\0';
2471 /* not a regexp, let us make it one */
2472 if (*value == '*' && !value[1])
2473 regex = stringcopy(".*", 0);
2475 for (n = 0, s = value; *s;)
2478 regex = malloc(strlen(value) + n + 3);
2481 for (n = 1, s = value; *s; s++) {
2491 debug(DBG_ERR, "malloc failed");
2495 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2498 realm = malloc(sizeof(struct realm));
2500 debug(DBG_ERR, "malloc failed");
2503 memset(realm, 0, sizeof(struct realm));
2505 if (pthread_mutex_init(&realm->subrealms_mutex, NULL)) {
2506 debug(DBG_ERR, "mutex init failed");
2512 realm->name = stringcopy(value, 0);
2514 debug(DBG_ERR, "malloc failed");
2517 if (message && strlen(message) > 253) {
2518 debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
2521 realm->message = message;
2522 realm->accresp = accresp;
2524 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2525 debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2529 if (servers && *servers) {
2530 realm->srvconfs = addsrvconfs(value, servers);
2531 if (!realm->srvconfs)
2535 if (accservers && *accservers) {
2536 realm->accsrvconfs = addsrvconfs(value, accservers);
2537 if (!realm->accsrvconfs)
2541 if (!list_push(realmlist, realm)) {
2542 debug(DBG_ERR, "malloc failed");
2543 pthread_mutex_destroy(&realm->subrealms_mutex);
2547 debug(DBG_DBG, "addrealm: added realm %s", value);
2557 for (n = 0; servers[n]; n++)
2562 for (n = 0; accservers[n]; n++)
2563 free(accservers[n]);
2569 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id) {
2570 struct clsrvconf *srvconf;
2571 struct realm *newrealm = NULL;
2572 char *realmname, *s;
2575 if (!conf->dynamiclookupcommand)
2578 /* create dynamic for the realm (string after last @, exit if nothing after @ */
2579 realmname = strrchr(id, '@');
2585 for (s = realmname; *s; s++)
2586 if (*s != '.' && *s != '-' && !isalnum((int)*s))
2589 pthread_mutex_lock(&realm->subrealms_mutex);
2590 /* exit if we now already got a matching subrealm */
2591 if (id2realm(realm->subrealms, id))
2593 srvconf = malloc(sizeof(struct clsrvconf));
2595 debug(DBG_ERR, "malloc failed");
2599 if (!addserver(srvconf))
2602 if (!realm->subrealms)
2603 realm->subrealms = list_create();
2604 if (!realm->subrealms)
2606 newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, NULL, 0);
2610 /* add server and accserver to newrealm */
2611 newrealm->srvconfs = list_create();
2612 if (!newrealm->srvconfs || !list_push(newrealm->srvconfs, srvconf)) {
2613 debug(DBG_ERR, "malloc failed");
2616 newrealm->accsrvconfs = list_create();
2617 if (!newrealm->accsrvconfs || !list_push(newrealm->accsrvconfs, srvconf)) {
2618 debug(DBG_ERR, "malloc failed");
2622 srvconf->servers->dynamiclookuparg = stringcopy(realmname, 0);
2624 if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
2625 debug(DBG_ERR, "pthread_create failed");
2628 pthread_detach(clientth);
2633 list_removedata(realm->subrealms, newrealm);
2634 freerealm(newrealm);
2635 if (!list_first(realm->subrealms)) {
2636 list_destroy(realm->subrealms);
2637 realm->subrealms = NULL;
2640 freeserver(srvconf->servers, 1);
2642 debug(DBG_ERR, "failed to create dynamic server");
2645 pthread_mutex_unlock(&realm->subrealms_mutex);
2648 int dynamicconfig(struct server *server) {
2649 int ok, fd[2], status;
2651 struct clsrvconf *conf = server->conf;
2652 struct gconffile *cf = NULL;
2654 /* for now we only learn hostname/address */
2655 debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
2658 debug(DBG_ERR, "dynamicconfig: pipe error");
2663 debug(DBG_ERR, "dynamicconfig: fork error");
2667 } else if (pid == 0) {
2670 if (fd[1] != STDOUT_FILENO) {
2671 if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
2672 debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
2675 if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
2676 debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
2680 pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
2681 ok = getgenericconfig(&cf, NULL,
2682 "Server", CONF_CBK, confserver_cb, (void *)conf,
2687 if (waitpid(pid, &status, 0) < 0) {
2688 debug(DBG_ERR, "dynamicconfig: wait error");
2693 debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
2701 debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
2705 int addmatchcertattr(struct clsrvconf *conf) {
2709 if (!strncasecmp(conf->matchcertattr, "CN:/", 4)) {
2710 r = &conf->certcnregex;
2711 v = conf->matchcertattr + 4;
2712 } else if (!strncasecmp(conf->matchcertattr, "SubjectAltName:URI:/", 20)) {
2713 r = &conf->certuriregex;
2714 v = conf->matchcertattr + 20;
2719 /* regexp, remove optional trailing / if present */
2720 if (v[strlen(v) - 1] == '/')
2721 v[strlen(v) - 1] = '\0';
2725 *r = malloc(sizeof(regex_t));
2727 debug(DBG_ERR, "malloc failed");
2730 if (regcomp(*r, v, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2733 debug(DBG_ERR, "failed to compile regular expression %s", v);
2739 /* should accept both names and numeric values, only numeric right now */
2740 uint8_t attrname2val(char *attrname) {
2743 val = atoi(attrname);
2744 return val > 0 && val < 256 ? val : 0;
2747 /* should accept both names and numeric values, only numeric right now */
2748 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2751 *vendor = atoi(attrname);
2752 s = strchr(attrname, ':');
2757 *type = atoi(s + 1);
2758 return *type >= 0 && *type < 256;
2761 /* should accept both names and numeric values, only numeric right now */
2762 struct tlv *extractattr(char *nameval) {
2767 s = strchr(nameval, ':');
2768 name = atoi(nameval);
2769 if (!s || name < 1 || name > 255)
2771 len = strlen(s + 1);
2774 a = malloc(sizeof(struct tlv));
2777 a->v = (uint8_t *)stringcopy(s + 1, 0);
2787 /* should accept both names and numeric values, only numeric right now */
2788 struct modattr *extractmodattr(char *nameval) {
2793 if (!strncasecmp(nameval, "User-Name:/", 11)) {
2797 s = strchr(nameval, ':');
2798 name = atoi(nameval);
2799 if (!s || name < 1 || name > 255 || s[1] != '/')
2803 /* regexp, remove optional trailing / if present */
2804 if (s[strlen(s) - 1] == '/')
2805 s[strlen(s) - 1] = '\0';
2813 m = malloc(sizeof(struct modattr));
2815 debug(DBG_ERR, "malloc failed");
2820 m->replacement = stringcopy(t, 0);
2821 if (!m->replacement) {
2823 debug(DBG_ERR, "malloc failed");
2827 m->regex = malloc(sizeof(regex_t));
2829 free(m->replacement);
2831 debug(DBG_ERR, "malloc failed");
2835 if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
2837 free(m->replacement);
2839 debug(DBG_ERR, "failed to compile regular expression %s", s);
2846 struct rewrite *getrewrite(char *alt1, char *alt2) {
2849 if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
2851 if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
2856 void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **modattrs) {
2857 struct rewrite *rewrite = NULL;
2859 uint8_t *rma = NULL;
2860 uint32_t *p, *rmva = NULL;
2861 struct list *adda = NULL, *moda = NULL;
2866 for (n = 0; rmattrs[n]; n++);
2867 rma = calloc(n + 1, sizeof(uint8_t));
2869 debugx(1, DBG_ERR, "malloc failed");
2871 for (i = 0; i < n; i++) {
2872 if (!(rma[i] = attrname2val(rmattrs[i])))
2873 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", rmattrs[i]);
2881 for (n = 0; rmvattrs[n]; n++);
2882 rmva = calloc(2 * n + 1, sizeof(uint32_t));
2884 debugx(1, DBG_ERR, "malloc failed");
2886 for (p = rmva, i = 0; i < n; i++, p += 2) {
2887 if (!vattrname2val(rmvattrs[i], p, p + 1))
2888 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", rmvattrs[i]);
2896 adda = list_create();
2898 debugx(1, DBG_ERR, "malloc failed");
2899 for (i = 0; addattrs[i]; i++) {
2900 a = extractattr(addattrs[i]);
2902 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addattrs[i]);
2904 if (!list_push(adda, a))
2905 debugx(1, DBG_ERR, "malloc failed");
2911 moda = list_create();
2913 debugx(1, DBG_ERR, "malloc failed");
2914 for (i = 0; modattrs[i]; i++) {
2915 m = extractmodattr(modattrs[i]);
2917 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", modattrs[i]);
2919 if (!list_push(moda, m))
2920 debugx(1, DBG_ERR, "malloc failed");
2925 if (rma || rmva || adda || moda) {
2926 rewrite = malloc(sizeof(struct rewrite));
2928 debugx(1, DBG_ERR, "malloc failed");
2929 rewrite->removeattrs = rma;
2930 rewrite->removevendorattrs = rmva;
2931 rewrite->addattrs = adda;
2932 rewrite->modattrs = moda;
2935 if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
2936 debugx(1, DBG_ERR, "malloc failed");
2937 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2940 void freeclsrvconf(struct clsrvconf *conf) {
2946 free(conf->matchcertattr);
2947 if (conf->certcnregex)
2948 regfree(conf->certcnregex);
2949 if (conf->certuriregex)
2950 regfree(conf->certuriregex);
2951 free(conf->confrewritein);
2952 free(conf->confrewriteout);
2953 if (conf->rewriteusername) {
2954 if (conf->rewriteusername->regex)
2955 regfree(conf->rewriteusername->regex);
2956 free(conf->rewriteusername->replacement);
2957 free(conf->rewriteusername);
2959 free(conf->dynamiclookupcommand);
2960 free(conf->rewritein);
2961 free(conf->rewriteout);
2963 freeaddrinfo(conf->addrinfo);
2965 pthread_mutex_destroy(conf->lock);
2968 /* not touching ssl_ctx, clients and servers */
2972 int mergeconfstring(char **dst, char **src) {
2981 t = stringcopy(*dst, 0);
2983 debug(DBG_ERR, "malloc failed");
2991 /* assumes dst is a shallow copy */
2992 int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
2993 if (!mergeconfstring(&dst->name, &src->name) ||
2994 !mergeconfstring(&dst->host, &src->host) ||
2995 !mergeconfstring(&dst->port, &src->port) ||
2996 !mergeconfstring(&dst->secret, &src->secret) ||
2997 !mergeconfstring(&dst->tls, &src->tls) ||
2998 !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
2999 !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
3000 !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
3001 !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
3004 dst->pdef = src->pdef;
3005 dst->statusserver = src->statusserver;
3006 dst->certnamecheck = src->certnamecheck;
3007 if (src->retryinterval != 255)
3008 dst->retryinterval = src->retryinterval;
3009 if (src->retrycount != 255)
3010 dst->retrycount = src->retrycount;
3014 int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3015 struct clsrvconf *conf;
3016 char *conftype = NULL, *rewriteinalias = NULL;
3017 long int dupinterval = LONG_MIN;
3019 debug(DBG_DBG, "confclient_cb called for %s", block);
3021 conf = malloc(sizeof(struct clsrvconf));
3023 debugx(1, DBG_ERR, "malloc failed");
3024 memset(conf, 0, sizeof(struct clsrvconf));
3025 conf->certnamecheck = 1;
3027 if (!getgenericconfig(cf, block,
3028 "type", CONF_STR, &conftype,
3029 "host", CONF_STR, &conf->host,
3030 "secret", CONF_STR, &conf->secret,
3031 "tls", CONF_STR, &conf->tls,
3032 "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
3033 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3034 "DuplicateInterval", CONF_LINT, &dupinterval,
3035 "rewrite", CONF_STR, &rewriteinalias,
3036 "rewriteIn", CONF_STR, &conf->confrewritein,
3037 "rewriteOut", CONF_STR, &conf->confrewriteout,
3038 "rewriteattribute", CONF_STR, &conf->confrewriteusername,
3041 debugx(1, DBG_ERR, "configuration error");
3043 conf->name = stringcopy(val, 0);
3045 conf->host = stringcopy(val, 0);
3046 if (!conf->name || !conf->host)
3047 debugx(1, DBG_ERR, "malloc failed");
3050 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3051 conf->type = protoname2int(conftype);
3052 conf->pdef = &protodefs[conf->type];
3053 if (!conf->pdef->name)
3054 debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3057 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3058 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultclient", "default");
3060 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
3061 if (conf->matchcertattr && !addmatchcertattr(conf))
3062 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3065 if (dupinterval != LONG_MIN) {
3066 if (dupinterval < 0 || dupinterval > 255)
3067 debugx(1, DBG_ERR, "error in block %s, value of option DuplicateInterval is %d, must be 0-255", block, dupinterval);
3068 conf->dupinterval = (uint8_t)dupinterval;
3070 conf->dupinterval = conf->pdef->duplicateintervaldefault;
3072 if (!conf->confrewritein)
3073 conf->confrewritein = rewriteinalias;
3075 free(rewriteinalias);
3076 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
3077 if (conf->confrewriteout)
3078 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3080 if (conf->confrewriteusername) {
3081 conf->rewriteusername = extractmodattr(conf->confrewriteusername);
3082 if (!conf->rewriteusername)
3083 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
3086 if (!resolvepeer(conf, 0))
3087 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3089 if (!conf->secret) {
3090 if (!conf->pdef->secretdefault)
3091 debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3092 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3094 debugx(1, DBG_ERR, "malloc failed");
3097 conf->lock = malloc(sizeof(pthread_mutex_t));
3099 debugx(1, DBG_ERR, "malloc failed");
3101 pthread_mutex_init(conf->lock, NULL);
3102 if (!list_push(clconfs, conf))
3103 debugx(1, DBG_ERR, "malloc failed");
3107 int compileserverconfig(struct clsrvconf *conf, const char *block) {
3108 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3109 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultserver", "default");
3110 if (!conf->ssl_ctx) {
3111 debug(DBG_ERR, "error in block %s, no tls context defined", block);
3114 if (conf->matchcertattr && !addmatchcertattr(conf)) {
3115 debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3121 conf->port = stringcopy(conf->pdef->portdefault, 0);
3123 debug(DBG_ERR, "malloc failed");
3128 if (conf->retryinterval == 255)
3129 conf->retryinterval = protodefs[conf->type].retryintervaldefault;
3130 if (conf->retrycount == 255)
3131 conf->retrycount = protodefs[conf->type].retrycountdefault;
3133 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
3134 if (conf->confrewriteout)
3135 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3137 if (!conf->secret) {
3138 if (!conf->pdef->secretdefault) {
3139 debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3142 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3143 if (!conf->secret) {
3144 debug(DBG_ERR, "malloc failed");
3149 if (!conf->dynamiclookupcommand && !resolvepeer(conf, 0)) {
3150 debug(DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3156 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3157 struct clsrvconf *conf, *resconf;
3158 char *conftype = NULL, *rewriteinalias = NULL;
3159 long int retryinterval = LONG_MIN, retrycount = LONG_MIN;
3161 debug(DBG_DBG, "confserver_cb called for %s", block);
3163 conf = malloc(sizeof(struct clsrvconf));
3165 debug(DBG_ERR, "malloc failed");
3168 memset(conf, 0, sizeof(struct clsrvconf));
3169 resconf = (struct clsrvconf *)arg;
3171 conf->statusserver = resconf->statusserver;
3172 conf->certnamecheck = resconf->certnamecheck;
3174 conf->certnamecheck = 1;
3176 if (!getgenericconfig(cf, block,
3177 "type", CONF_STR, &conftype,
3178 "host", CONF_STR, &conf->host,
3179 "port", CONF_STR, &conf->port,
3180 "secret", CONF_STR, &conf->secret,
3181 "tls", CONF_STR, &conf->tls,
3182 "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
3183 "rewrite", CONF_STR, &rewriteinalias,
3184 "rewriteIn", CONF_STR, &conf->confrewritein,
3185 "rewriteOut", CONF_STR, &conf->confrewriteout,
3186 "StatusServer", CONF_BLN, &conf->statusserver,
3187 "RetryInterval", CONF_LINT, &retryinterval,
3188 "RetryCount", CONF_LINT, &retrycount,
3189 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3190 "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
3193 debug(DBG_ERR, "configuration error");
3197 conf->name = stringcopy(val, 0);
3199 debug(DBG_ERR, "malloc failed");
3203 conf->host = stringcopy(val, 0);
3205 debug(DBG_ERR, "malloc failed");
3211 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3212 conf->type = protoname2int(conftype);
3213 conf->pdef = &protodefs[conf->type];
3214 if (!conf->pdef->name) {
3215 debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3221 if (!conf->confrewritein)
3222 conf->confrewritein = rewriteinalias;
3224 free(rewriteinalias);
3225 rewriteinalias = NULL;
3227 if (retryinterval != LONG_MIN) {
3228 if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
3229 debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
3232 conf->retryinterval = (uint8_t)retryinterval;
3234 conf->retryinterval = 255;
3236 if (retrycount != LONG_MIN) {
3237 if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
3238 debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
3241 conf->retrycount = (uint8_t)retrycount;
3243 conf->retrycount = 255;
3246 if (!mergesrvconf(resconf, conf))
3250 if (conf->dynamiclookupcommand) {
3251 free(conf->dynamiclookupcommand);
3252 conf->dynamiclookupcommand = NULL;
3256 if (resconf || !conf->dynamiclookupcommand) {
3257 if (!compileserverconfig(conf, block))
3264 if (!list_push(srvconfs, conf)) {
3265 debug(DBG_ERR, "malloc failed");
3272 free(rewriteinalias);
3273 freeclsrvconf(conf);
3277 int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3278 char **servers = NULL, **accservers = NULL, *msg = NULL;
3279 uint8_t accresp = 0;
3281 debug(DBG_DBG, "confrealm_cb called for %s", block);
3283 if (!getgenericconfig(cf, block,
3284 "server", CONF_MSTR, &servers,
3285 "accountingServer", CONF_MSTR, &accservers,
3286 "ReplyMessage", CONF_STR, &msg,
3287 "AccountingResponse", CONF_BLN, &accresp,
3290 debugx(1, DBG_ERR, "configuration error");
3292 addrealm(realms, val, servers, accservers, msg, accresp);
3296 int conftls_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3299 debug(DBG_DBG, "conftls_cb called for %s", block);
3301 conf = malloc(sizeof(struct tls));
3303 debug(DBG_ERR, "conftls_cb: malloc failed");
3306 memset(conf, 0, sizeof(struct tls));
3308 if (!getgenericconfig(cf, block,
3309 "CACertificateFile", CONF_STR, &conf->cacertfile,
3310 "CACertificatePath", CONF_STR, &conf->cacertpath,
3311 "CertificateFile", CONF_STR, &conf->certfile,
3312 "CertificateKeyFile", CONF_STR, &conf->certkeyfile,
3313 "CertificateKeyPassword", CONF_STR, &conf->certkeypwd,
3314 "CRLCheck", CONF_BLN, &conf->crlcheck,
3317 debug(DBG_ERR, "conftls_cb: configuration error in block %s", val);
3320 if (!conf->certfile || !conf->certkeyfile) {
3321 debug(DBG_ERR, "conftls_cb: TLSCertificateFile and TLSCertificateKeyFile must be specified in block %s", val);
3324 if (!conf->cacertfile && !conf->cacertpath) {
3325 debug(DBG_ERR, "conftls_cb: CA Certificate file or path need to be specified in block %s", val);
3329 conf->name = stringcopy(val, 0);
3331 debug(DBG_ERR, "conftls_cb: malloc failed");
3335 if (!hash_insert(tlsconfs, val, strlen(val), conf)) {
3336 debug(DBG_ERR, "conftls_cb: malloc failed");
3340 debug(DBG_DBG, "conftls_cb: added TLS block %s", val);
3344 free(conf->cacertfile);
3345 free(conf->cacertpath);
3346 free(conf->certfile);
3347 free(conf->certkeyfile);
3348 free(conf->certkeypwd);
3353 int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3354 char **rmattrs = NULL, **rmvattrs = NULL, **addattrs = NULL, **modattrs = NULL;
3356 debug(DBG_DBG, "confrewrite_cb called for %s", block);
3358 if (!getgenericconfig(cf, block,
3359 "removeAttribute", CONF_MSTR, &rmattrs,
3360 "removeVendorAttribute", CONF_MSTR, &rmvattrs,
3361 "addAttribute", CONF_MSTR, &addattrs,
3362 "modifyAttribute", CONF_MSTR, &modattrs,
3365 debugx(1, DBG_ERR, "configuration error");
3366 addrewrite(val, rmattrs, rmvattrs, addattrs, modattrs);
3370 void getmainconfig(const char *configfile) {
3371 long int loglevel = LONG_MIN;
3372 struct gconffile *cfs;
3374 cfs = openconfigfile(configfile);
3375 memset(&options, 0, sizeof(options));
3377 clconfs = list_create();
3379 debugx(1, DBG_ERR, "malloc failed");
3381 srvconfs = list_create();
3383 debugx(1, DBG_ERR, "malloc failed");
3385 realms = list_create();
3387 debugx(1, DBG_ERR, "malloc failed");
3389 tlsconfs = hash_create();
3391 debugx(1, DBG_ERR, "malloc failed");
3393 rewriteconfs = hash_create();
3395 debugx(1, DBG_ERR, "malloc failed");
3397 if (!getgenericconfig(&cfs, NULL,
3398 "ListenUDP", CONF_MSTR, &options.listenudp,
3399 "ListenTCP", CONF_MSTR, &options.listentcp,
3400 "ListenTLS", CONF_MSTR, &options.listentls,
3401 "ListenDTLS", CONF_MSTR, &options.listendtls,
3402 "ListenAccountingUDP", CONF_MSTR, &options.listenaccudp,
3403 "SourceUDP", CONF_STR, &options.sourceudp,
3404 "SourceTCP", CONF_STR, &options.sourcetcp,
3405 "SourceTLS", CONF_STR, &options.sourcetls,
3406 "SourceDTLS", CONF_STR, &options.sourcedtls,
3407 "LogLevel", CONF_LINT, &loglevel,
3408 "LogDestination", CONF_STR, &options.logdestination,
3409 "LoopPrevention", CONF_BLN, &options.loopprevention,
3410 "Client", CONF_CBK, confclient_cb, NULL,
3411 "Server", CONF_CBK, confserver_cb, NULL,
3412 "Realm", CONF_CBK, confrealm_cb, NULL,
3413 "TLS", CONF_CBK, conftls_cb, NULL,
3414 "Rewrite", CONF_CBK, confrewrite_cb, NULL,
3417 debugx(1, DBG_ERR, "configuration error");
3419 if (loglevel != LONG_MIN) {
3420 if (loglevel < 1 || loglevel > 4)
3421 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3 or 4", configfile, loglevel);
3422 options.loglevel = (uint8_t)loglevel;
3426 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile) {
3429 while ((c = getopt(argc, argv, "c:d:fpv")) != -1) {
3432 *configfile = optarg;
3435 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3436 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3437 *loglevel = *optarg - '0';
3446 debugx(0, DBG_ERR, "radsecproxy revision $Rev$");
3451 if (!(argc - optind))
3455 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -p ] [ -v ]", argv[0]);
3459 int daemon(int a, int b) {
3467 for (i = 0; i < 3; i++) {
3469 open("/dev/null", O_RDWR);
3475 void *sighandler(void *arg) {
3480 sigemptyset(&sigset);
3481 sigaddset(&sigset, SIGPIPE);
3482 sigwait(&sigset, &sig);
3483 /* only get SIGPIPE right now, so could simplify below code */
3486 /* completely ignoring this */
3489 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3492 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3497 int main(int argc, char **argv) {
3500 struct list_node *entry;
3501 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3502 char *configfile = NULL;
3503 struct clsrvconf *srvconf;
3506 debug_init("radsecproxy");
3507 debug_set_level(DEBUG_LEVEL);
3509 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile);
3511 debug_set_level(loglevel);
3512 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3514 options.loglevel = loglevel;
3515 else if (options.loglevel)
3516 debug_set_level(options.loglevel);
3518 debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
3519 free(options.logdestination);
3521 if (!list_first(clconfs))
3522 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3523 if (!list_first(realms))
3524 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3527 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3529 if (!foreground && (daemon(0, 0) < 0))
3530 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3532 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3534 sigemptyset(&sigset);
3535 /* exit on all but SIGPIPE, ignore more? */
3536 sigaddset(&sigset, SIGPIPE);
3537 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3538 pthread_create(&sigth, NULL, sighandler, NULL);
3540 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3541 srvconf = (struct clsrvconf *)entry->data;
3542 if (srvconf->dynamiclookupcommand)
3544 if (!addserver(srvconf))
3545 debugx(1, DBG_ERR, "failed to add server");
3546 if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
3547 (void *)(srvconf->servers)))
3548 debugx(1, DBG_ERR, "pthread_create failed");
3550 /* srcprotores for UDP no longer needed */
3551 if (srcprotores[RAD_UDP]) {
3552 freeaddrinfo(srcprotores[RAD_UDP]);
3553 srcprotores[RAD_UDP] = NULL;
3556 for (i = 0; protodefs[i].name; i++)
3557 if (protodefs[i].initextra)
3558 protodefs[i].initextra();
3560 if (find_clconf_type(RAD_TCP, NULL))
3561 createlisteners(RAD_TCP, options.listentcp);
3563 if (find_clconf_type(RAD_TLS, NULL))
3564 createlisteners(RAD_TLS, options.listentls);
3566 if (find_clconf_type(RAD_DTLS, NULL))
3567 createlisteners(RAD_DTLS, options.listendtls);
3569 if (find_clconf_type(RAD_UDP, NULL)) {
3570 createlisteners(RAD_UDP, options.listenudp);
3571 if (options.listenaccudp)
3572 createlisteners(RAD_UDP, options.listenaccudp);
3575 /* just hang around doing nothing, anything to do here? */