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 * TCP accounting not yet supported
39 * We are not removing client requests from dynamic servers, see removeclientrqs()
40 * Need to remove UDP clients when no activity for a while...
41 * Remove expired stuff from clients request list?
45 #include <sys/socket.h>
46 #include <netinet/in.h>
55 #include <sys/types.h>
56 #include <sys/select.h>
59 #include <arpa/inet.h>
63 #include <openssl/ssl.h>
64 #include <openssl/rand.h>
65 #include <openssl/err.h>
66 #include <openssl/md5.h>
67 #include <openssl/hmac.h>
68 #include <openssl/x509v3.h>
74 #include "radsecproxy.h"
80 static struct options options;
81 static struct list *clconfs, *srvconfs;
83 struct hash *tlsconfs, *rewriteconfs;
85 static struct addrinfo *srcprotores[4] = { NULL, NULL, NULL, NULL };
87 static pthread_mutex_t *ssl_locks = NULL;
88 static long *ssl_lock_count;
92 /* minimum required declarations to avoid reordering code */
93 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id);
94 int dynamicconfig(struct server *server);
95 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
96 void freerealm(struct realm *realm);
97 void freeclsrvconf(struct clsrvconf *conf);
98 void freerq(struct request *rq);
99 void freerqoutdata(struct rqout *rqout);
100 void rmclientrq(struct request *rq, uint8_t id);
102 static const struct protodefs protodefs[] = {
103 { "udp", /* UDP, assuming RAD_UDP defined as 0 */
104 NULL, /* secretdefault */
105 SOCK_DGRAM, /* socktype */
106 "1812", /* portdefault */
107 REQUEST_RETRY_COUNT, /* retrycountdefault */
108 10, /* retrycountmax */
109 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
110 60, /* retryintervalmax */
111 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
112 udpserverrd, /* listener */
113 &options.sourceudp, /* srcaddrport */
114 NULL, /* connecter */
115 NULL, /* clientconnreader */
116 clientradputudp, /* clientradput */
117 addclientudp, /* addclient */
118 addserverextraudp, /* addserverextra */
119 initextraudp /* initextra */
121 { "tls", /* TLS, assuming RAD_TLS defined as 1 */
122 "mysecret", /* secretdefault */
123 SOCK_STREAM, /* socktype */
124 "2083", /* portdefault */
125 0, /* retrycountdefault */
126 0, /* retrycountmax */
127 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
128 60, /* retryintervalmax */
129 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
130 tlslistener, /* listener */
131 &options.sourcetls, /* srcaddrport */
132 tlsconnect, /* connecter */
133 tlsclientrd, /* clientconnreader */
134 clientradputtls, /* clientradput */
135 NULL, /* addclient */
136 NULL, /* addserverextra */
139 { "tcp", /* TCP, assuming RAD_TCP defined as 2 */
140 NULL, /* secretdefault */
141 SOCK_STREAM, /* socktype */
142 "1812", /* portdefault */
143 0, /* retrycountdefault */
144 0, /* retrycountmax */
145 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
146 60, /* retryintervalmax */
147 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
148 tcplistener, /* listener */
149 &options.sourcetcp, /* srcaddrport */
150 tcpconnect, /* connecter */
151 tcpclientrd, /* clientconnreader */
152 clientradputtcp, /* clientradput */
153 NULL, /* addclient */
154 NULL, /* addserverextra */
157 { "dtls", /* DTLS, assuming RAD_DTLS defined as 3 */
158 "mysecret", /* secretdefault */
159 SOCK_DGRAM, /* socktype */
160 "2083", /* portdefault */
161 REQUEST_RETRY_COUNT, /* retrycountdefault */
162 10, /* retrycountmax */
163 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
164 60, /* retryintervalmax */
165 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
166 udpdtlsserverrd, /* listener */
167 &options.sourcedtls, /* srcaddrport */
168 dtlsconnect, /* connecter */
169 dtlsclientrd, /* clientconnreader */
170 clientradputdtls, /* clientradput */
171 NULL, /* addclient */
172 addserverextradtls, /* addserverextra */
173 initextradtls /* initextra */
179 uint8_t protoname2int(const char *name) {
182 for (i = 0; protodefs[i].name && strcasecmp(protodefs[i].name, name); i++);
186 /* callbacks for making OpenSSL thread safe */
187 unsigned long ssl_thread_id() {
188 return (unsigned long)pthread_self();
191 void ssl_locking_callback(int mode, int type, const char *file, int line) {
192 if (mode & CRYPTO_LOCK) {
193 pthread_mutex_lock(&ssl_locks[type]);
194 ssl_lock_count[type]++;
196 pthread_mutex_unlock(&ssl_locks[type]);
199 static int pem_passwd_cb(char *buf, int size, int rwflag, void *userdata) {
200 int pwdlen = strlen(userdata);
201 if (rwflag != 0 || pwdlen > size) /* not for decryption or too large */
203 memcpy(buf, userdata, pwdlen);
207 static int verify_cb(int ok, X509_STORE_CTX *ctx) {
212 err_cert = X509_STORE_CTX_get_current_cert(ctx);
213 err = X509_STORE_CTX_get_error(ctx);
214 depth = X509_STORE_CTX_get_error_depth(ctx);
216 if (depth > MAX_CERT_DEPTH) {
218 err = X509_V_ERR_CERT_CHAIN_TOO_LONG;
219 X509_STORE_CTX_set_error(ctx, err);
223 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
224 debug(DBG_WARN, "verify error: num=%d:%s:depth=%d:%s", err, X509_verify_cert_error_string(err), depth, buf);
227 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
228 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf, 256);
229 debug(DBG_WARN, "\tIssuer=%s", buf);
231 case X509_V_ERR_CERT_NOT_YET_VALID:
232 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
233 debug(DBG_WARN, "\tCertificate not yet valid");
235 case X509_V_ERR_CERT_HAS_EXPIRED:
236 debug(DBG_WARN, "Certificate has expired");
238 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
239 debug(DBG_WARN, "Certificate no longer valid (after notAfter)");
244 printf("certificate verify returns %d\n", ok);
249 struct addrinfo *getsrcprotores(uint8_t type) {
250 return srcprotores[type];
253 int resolvepeer(struct clsrvconf *conf, int ai_flags) {
254 struct addrinfo hints, *addrinfo, *res;
258 slash = conf->host ? strchr(conf->host, '/') : NULL;
262 debug(DBG_WARN, "resolvepeer: prefix length must be specified after the / in %s", conf->host);
266 if (*s < '0' || *s > '9') {
267 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
270 plen = atoi(slash + 1);
271 if (plen < 0 || plen > 128) {
272 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
277 memset(&hints, 0, sizeof(hints));
278 hints.ai_socktype = conf->pdef->socktype;
279 hints.ai_family = AF_UNSPEC;
280 hints.ai_flags = ai_flags;
281 if (!conf->host && !conf->port) {
282 /* getaddrinfo() doesn't like host and port to be NULL */
283 if (getaddrinfo(conf->host, conf->pdef->portdefault, &hints, &addrinfo)) {
284 debug(DBG_WARN, "resolvepeer: can't resolve (null) port (null)");
287 for (res = addrinfo; res; res = res->ai_next)
288 port_set(res->ai_addr, 0);
291 hints.ai_flags |= AI_NUMERICHOST;
292 if (getaddrinfo(conf->host, conf->port, &hints, &addrinfo)) {
293 debug(DBG_WARN, "resolvepeer: can't resolve %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
298 switch (addrinfo->ai_family) {
301 debug(DBG_WARN, "resolvepeer: prefix length must be <= 32 in %s", conf->host);
302 freeaddrinfo(addrinfo);
309 debug(DBG_WARN, "resolvepeer: prefix must be IPv4 or IPv6 in %s", conf->host);
310 freeaddrinfo(addrinfo);
313 conf->prefixlen = plen;
315 conf->prefixlen = 255;
318 freeaddrinfo(conf->addrinfo);
319 conf->addrinfo = addrinfo;
323 char *parsehostport(char *s, struct clsrvconf *conf, char *default_port) {
328 /* allow literal addresses and port, e.g. [2001:db8::1]:1812 */
332 for (; *p && *p != ']' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
334 debugx(1, DBG_ERR, "no ] matching initial [");
338 for (; *p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
341 debugx(1, DBG_ERR, "missing host/address");
343 conf->host = stringcopy(field, p - field);
346 if (*p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n')
347 debugx(1, DBG_ERR, "unexpected character after ]");
350 /* port number or service name is specified */;
352 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
354 debugx(1, DBG_ERR, "syntax error, : but no following port");
355 conf->port = stringcopy(field, p - field);
357 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
361 struct clsrvconf *resolve_hostport(uint8_t type, char *lconf, char *default_port) {
362 struct clsrvconf *conf;
364 conf = malloc(sizeof(struct clsrvconf));
366 debugx(1, DBG_ERR, "malloc failed");
367 memset(conf, 0, sizeof(struct clsrvconf));
369 conf->pdef = &protodefs[conf->type];
371 parsehostport(lconf, conf, default_port);
372 if (!strcmp(conf->host, "*")) {
377 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
378 if (!resolvepeer(conf, AI_PASSIVE))
379 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
383 void freeclsrvres(struct clsrvconf *res) {
387 freeaddrinfo(res->addrinfo);
391 int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
393 struct addrinfo *res;
395 for (res = addrinfo; res; res = res->ai_next) {
396 if (family != AF_UNSPEC && family != res->ai_family)
398 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
400 debug(DBG_WARN, "bindtoaddr: socket failed");
404 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
407 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
409 if (!bind(s, res->ai_addr, res->ai_addrlen))
411 debug(DBG_WARN, "bindtoaddr: bind failed");
417 int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src) {
419 struct addrinfo *res;
422 for (res = addrinfo; res; res = res->ai_next) {
423 s = bindtoaddr(src, res->ai_family, 1, 1);
425 debug(DBG_WARN, "connecttoserver: socket failed");
428 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
430 debug(DBG_WARN, "connecttoserver: connect failed");
437 /* returns 1 if the len first bits are equal, else 0 */
438 int prefixmatch(void *a1, void *a2, uint8_t len) {
439 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
441 if (l && memcmp(a1, a2, l))
446 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
449 /* returns next config with matching address, or NULL */
450 struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur) {
451 struct sockaddr_in6 *sa6 = NULL;
452 struct in_addr *a4 = NULL;
453 struct addrinfo *res;
454 struct list_node *entry;
455 struct clsrvconf *conf;
457 if (addr->sa_family == AF_INET6) {
458 sa6 = (struct sockaddr_in6 *)addr;
459 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
460 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
464 a4 = &((struct sockaddr_in *)addr)->sin_addr;
466 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
467 conf = (struct clsrvconf *)entry->data;
468 if (conf->type == type) {
469 if (conf->prefixlen == 255) {
470 for (res = conf->addrinfo; res; res = res->ai_next)
471 if ((a4 && res->ai_family == AF_INET &&
472 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
473 (sa6 && res->ai_family == AF_INET6 &&
474 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16))) {
480 res = conf->addrinfo;
482 ((a4 && res->ai_family == AF_INET &&
483 prefixmatch(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, conf->prefixlen)) ||
484 (sa6 && res->ai_family == AF_INET6 &&
485 prefixmatch(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, conf->prefixlen)))) {
496 struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
497 return find_conf(type, addr, clconfs, cur);
500 struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
501 return find_conf(type, addr, srvconfs, cur);
504 /* returns next config of given type, or NULL */
505 struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
506 struct list_node *entry;
507 struct clsrvconf *conf;
509 for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
510 conf = (struct clsrvconf *)entry->data;
511 if (conf->type == type) {
520 struct queue *newqueue() {
523 q = malloc(sizeof(struct queue));
525 debugx(1, DBG_ERR, "malloc failed");
526 q->entries = list_create();
528 debugx(1, DBG_ERR, "malloc failed");
529 pthread_mutex_init(&q->mutex, NULL);
530 pthread_cond_init(&q->cond, NULL);
534 void removequeue(struct queue *q) {
535 struct list_node *entry;
539 pthread_mutex_lock(&q->mutex);
540 for (entry = list_first(q->entries); entry; entry = list_next(entry))
541 freerq((struct request *)entry);
542 list_destroy(q->entries);
543 pthread_cond_destroy(&q->cond);
544 pthread_mutex_unlock(&q->mutex);
545 pthread_mutex_destroy(&q->mutex);
549 void freebios(struct queue *q) {
552 pthread_mutex_lock(&q->mutex);
553 while ((bio = (BIO *)list_shift(q->entries)))
555 pthread_mutex_unlock(&q->mutex);
559 struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
560 struct client *new = malloc(sizeof(struct client));
563 debug(DBG_ERR, "malloc failed");
568 pthread_mutex_lock(conf->lock);
569 if (!conf->clients) {
570 conf->clients = list_create();
571 if (!conf->clients) {
573 pthread_mutex_unlock(conf->lock);
574 debug(DBG_ERR, "malloc failed");
579 memset(new, 0, sizeof(struct client));
580 pthread_mutex_init(&new->lock, NULL);
582 if (conf->pdef->addclient)
583 conf->pdef->addclient(new);
585 new->replyq = newqueue();
586 list_push(conf->clients, new);
588 pthread_mutex_unlock(conf->lock);
592 void removeclient(struct client *client) {
593 struct clsrvconf *conf;
598 pthread_mutex_lock(conf->lock);
600 pthread_mutex_lock(&client->lock);
601 removequeue(client->replyq);
602 list_removedata(conf->clients, client);
603 pthread_mutex_unlock(&client->lock);
604 pthread_mutex_destroy(&client->lock);
608 pthread_mutex_unlock(conf->lock);
611 void removeclientrqs(struct client *client) {
612 struct list_node *entry;
613 struct server *server;
617 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
618 server = ((struct clsrvconf *)entry->data)->servers;
621 for (i = 0; i < MAX_REQUESTS; i++) {
622 rqout = server->requests + i;
623 pthread_mutex_lock(rqout->lock);
624 if (rqout->rq && rqout->rq->from == client)
625 freerqoutdata(rqout);
626 pthread_mutex_unlock(rqout->lock);
631 void freeserver(struct server *server, uint8_t destroymutex) {
632 struct rqout *rqout, *end;
637 if (server->requests) {
638 rqout = server->requests;
639 for (end = rqout + MAX_REQUESTS; rqout < end; rqout++) {
640 freerqoutdata(rqout);
641 pthread_mutex_destroy(rqout->lock);
644 free(server->requests);
647 freebios(server->rbios);
648 free(server->dynamiclookuparg);
650 SSL_free(server->ssl);
652 pthread_mutex_destroy(&server->lock);
653 pthread_cond_destroy(&server->newrq_cond);
654 pthread_mutex_destroy(&server->newrq_mutex);
659 int addserver(struct clsrvconf *conf) {
660 struct clsrvconf *res;
665 debug(DBG_ERR, "addserver: currently works with just one server per conf");
668 conf->servers = malloc(sizeof(struct server));
669 if (!conf->servers) {
670 debug(DBG_ERR, "malloc failed");
673 memset(conf->servers, 0, sizeof(struct server));
674 conf->servers->conf = conf;
677 if (type == RAD_DTLS)
678 conf->servers->rbios = newqueue();
680 if (!srcprotores[type]) {
681 res = resolve_hostport(type, *conf->pdef->srcaddrport, NULL);
682 srcprotores[type] = res->addrinfo;
683 res->addrinfo = NULL;
687 conf->servers->sock = -1;
688 if (conf->pdef->addserverextra)
689 conf->pdef->addserverextra(conf);
691 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct rqout));
692 if (!conf->servers->requests) {
693 debug(DBG_ERR, "malloc failed");
696 for (i = 0; i < MAX_REQUESTS; i++) {
697 conf->servers->requests[i].lock = malloc(sizeof(pthread_mutex_t));
698 if (!conf->servers->requests[i].lock) {
699 debug(DBG_ERR, "malloc failed");
702 if (pthread_mutex_init(conf->servers->requests[i].lock, NULL)) {
703 debug(DBG_ERR, "mutex init failed");
704 free(conf->servers->requests[i].lock);
705 conf->servers->requests[i].lock = NULL;
709 if (pthread_mutex_init(&conf->servers->lock, NULL)) {
710 debug(DBG_ERR, "mutex init failed");
713 conf->servers->newrq = 0;
714 if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
715 debug(DBG_ERR, "mutex init failed");
716 pthread_mutex_destroy(&conf->servers->lock);
719 if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
720 debug(DBG_ERR, "mutex init failed");
721 pthread_mutex_destroy(&conf->servers->newrq_mutex);
722 pthread_mutex_destroy(&conf->servers->lock);
729 freeserver(conf->servers, 0);
730 conf->servers = NULL;
734 int subjectaltnameaddr(X509 *cert, int family, struct in6_addr *addr) {
735 int loc, i, l, n, r = 0;
738 STACK_OF(GENERAL_NAME) *alt;
741 debug(DBG_DBG, "subjectaltnameaddr");
743 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
747 ex = X509_get_ext(cert, loc);
748 alt = X509V3_EXT_d2i(ex);
752 n = sk_GENERAL_NAME_num(alt);
753 for (i = 0; i < n; i++) {
754 gn = sk_GENERAL_NAME_value(alt, i);
755 if (gn->type != GEN_IPADD)
758 v = (char *)ASN1_STRING_data(gn->d.ia5);
759 l = ASN1_STRING_length(gn->d.ia5);
760 if (((family == AF_INET && l == sizeof(struct in_addr)) || (family == AF_INET6 && l == sizeof(struct in6_addr)))
761 && !memcmp(v, &addr, l)) {
766 GENERAL_NAMES_free(alt);
770 int cnregexp(X509 *cert, char *exact, regex_t *regex) {
777 nm = X509_get_subject_name(cert);
780 loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
783 e = X509_NAME_get_entry(nm, loc);
784 t = X509_NAME_ENTRY_get_data(e);
785 v = (char *) ASN1_STRING_data(t);
786 l = ASN1_STRING_length(t);
790 if (l == strlen(exact) && !strncasecmp(exact, v, l))
793 s = stringcopy((char *)v, l);
795 debug(DBG_ERR, "malloc failed");
798 if (regexec(regex, s, 0, NULL, 0)) {
809 int subjectaltnameregexp(X509 *cert, int type, char *exact, regex_t *regex) {
810 int loc, i, l, n, r = 0;
813 STACK_OF(GENERAL_NAME) *alt;
816 debug(DBG_DBG, "subjectaltnameregexp");
818 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
822 ex = X509_get_ext(cert, loc);
823 alt = X509V3_EXT_d2i(ex);
827 n = sk_GENERAL_NAME_num(alt);
828 for (i = 0; i < n; i++) {
829 gn = sk_GENERAL_NAME_value(alt, i);
830 if (gn->type != type)
833 v = (char *)ASN1_STRING_data(gn->d.ia5);
834 l = ASN1_STRING_length(gn->d.ia5);
838 printfchars(NULL, gn->type == GEN_DNS ? "dns" : "uri", NULL, v, l);
841 if (memcmp(v, exact, l))
844 s = stringcopy((char *)v, l);
846 debug(DBG_ERR, "malloc failed");
849 if (regexec(regex, s, 0, NULL, 0)) {
858 GENERAL_NAMES_free(alt);
862 X509 *verifytlscert(SSL *ssl) {
866 if (SSL_get_verify_result(ssl) != X509_V_OK) {
867 debug(DBG_ERR, "verifytlscert: basic validation failed");
868 while ((error = ERR_get_error()))
869 debug(DBG_ERR, "verifytlscert: TLS: %s", ERR_error_string(error, NULL));
873 cert = SSL_get_peer_certificate(ssl);
875 debug(DBG_ERR, "verifytlscert: failed to obtain certificate");
879 int verifyconfcert(X509 *cert, struct clsrvconf *conf) {
881 uint8_t type = 0; /* 0 for DNS, AF_INET for IPv4, AF_INET6 for IPv6 */
882 struct in6_addr addr;
884 if (conf->certnamecheck && conf->prefixlen == 255) {
885 if (inet_pton(AF_INET, conf->host, &addr))
887 else if (inet_pton(AF_INET6, conf->host, &addr))
890 r = type ? subjectaltnameaddr(cert, type, &addr) : subjectaltnameregexp(cert, GEN_DNS, conf->host, NULL);
893 debug(DBG_WARN, "verifyconfcert: No subjectaltname matching %s %s", type ? "address" : "host", conf->host);
896 debug(DBG_DBG, "verifyconfcert: Found subjectaltname matching %s %s", type ? "address" : "host", conf->host);
898 if (!cnregexp(cert, conf->host, NULL)) {
899 debug(DBG_WARN, "verifyconfcert: cn not matching host %s", conf->host);
902 debug(DBG_DBG, "verifyconfcert: Found cn matching host %s", conf->host);
905 if (conf->certcnregex) {
906 if (cnregexp(cert, NULL, conf->certcnregex) < 1) {
907 debug(DBG_WARN, "verifyconfcert: CN not matching regex");
910 debug(DBG_DBG, "verifyconfcert: CN matching regex");
912 if (conf->certuriregex) {
913 if (subjectaltnameregexp(cert, GEN_URI, NULL, conf->certuriregex) < 1) {
914 debug(DBG_WARN, "verifyconfcert: subjectaltname URI not matching regex");
917 debug(DBG_DBG, "verifyconfcert: subjectaltname URI matching regex");
922 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
924 if (ATTRTYPE(attrs) == type)
926 length -= ATTRLEN(attrs);
927 attrs += ATTRLEN(attrs);
932 void freerq(struct request *rq) {
935 debug(DBG_DBG, "freerq: called with refcount %d", rq->refcount);
938 if (rq->origusername)
939 free(rq->origusername);
945 radmsg_free(rq->msg);
949 void freerqoutdata(struct rqout *rqout) {
957 memset(&rqout->expiry, 0, sizeof(struct timeval));
960 void sendrq(struct server *to, struct request *rq) {
963 pthread_mutex_lock(&to->newrq_mutex);
964 /* might simplify if only try nextid, might be ok */
965 for (i = to->nextid; i < MAX_REQUESTS; i++) {
966 if (!to->requests[i].rq) {
967 pthread_mutex_lock(to->requests[i].lock);
968 if (!to->requests[i].rq)
970 pthread_mutex_unlock(to->requests[i].lock);
973 if (i == MAX_REQUESTS) {
974 for (i = 0; i < to->nextid; i++) {
975 if (!to->requests[i].rq) {
976 pthread_mutex_lock(to->requests[i].lock);
977 if (!to->requests[i].rq)
979 pthread_mutex_unlock(to->requests[i].lock);
982 if (i == to->nextid) {
983 debug(DBG_WARN, "sendrq: no room in queue, dropping request");
984 rmclientrq(rq, rq->msg->id);
990 rq->msg->id = (uint8_t)i;
991 rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
993 pthread_mutex_unlock(to->requests[i].lock);
994 debug(DBG_ERR, "sendrq: radmsg2buf failed");
995 rmclientrq(rq, rq->msg->id);
1000 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->host);
1001 to->requests[i].rq = rq;
1002 pthread_mutex_unlock(to->requests[i].lock);
1007 debug(DBG_DBG, "sendrq: signalling client writer");
1008 pthread_cond_signal(&to->newrq_cond);
1012 pthread_mutex_unlock(&to->newrq_mutex);
1015 void sendreply(struct request *rq) {
1017 struct client *to = rq->from;
1020 rq->replybuf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
1021 radmsg_free(rq->msg);
1023 if (!rq->replybuf) {
1025 debug(DBG_ERR, "sendreply: radmsg2buf failed");
1029 pthread_mutex_lock(&to->replyq->mutex);
1030 first = list_first(to->replyq->entries) == NULL;
1032 if (!list_push(to->replyq->entries, rq)) {
1033 pthread_mutex_unlock(&to->replyq->mutex);
1035 debug(DBG_ERR, "sendreply: malloc failed");
1040 debug(DBG_DBG, "signalling server writer");
1041 pthread_cond_signal(&to->replyq->cond);
1043 pthread_mutex_unlock(&to->replyq->mutex);
1046 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1047 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1048 static unsigned char first = 1;
1049 static EVP_MD_CTX mdctx;
1050 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1051 unsigned int md_len;
1052 uint8_t i, offset = 0, out[128];
1054 pthread_mutex_lock(&lock);
1056 EVP_MD_CTX_init(&mdctx);
1062 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1063 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1064 !EVP_DigestUpdate(&mdctx, input, 16) ||
1065 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1067 pthread_mutex_unlock(&lock);
1070 for (i = 0; i < 16; i++)
1071 out[offset + i] = hash[i] ^ in[offset + i];
1072 input = out + offset - 16;
1077 memcpy(in, out, len);
1078 pthread_mutex_unlock(&lock);
1082 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1083 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1084 static unsigned char first = 1;
1085 static EVP_MD_CTX mdctx;
1086 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1087 unsigned int md_len;
1088 uint8_t i, offset = 0, out[128];
1090 pthread_mutex_lock(&lock);
1092 EVP_MD_CTX_init(&mdctx);
1098 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1099 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1100 !EVP_DigestUpdate(&mdctx, input, 16) ||
1101 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1103 pthread_mutex_unlock(&lock);
1106 for (i = 0; i < 16; i++)
1107 out[offset + i] = hash[i] ^ in[offset + i];
1108 input = in + offset;
1113 memcpy(in, out, len);
1114 pthread_mutex_unlock(&lock);
1118 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1119 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1120 static unsigned char first = 1;
1121 static EVP_MD_CTX mdctx;
1122 unsigned char hash[EVP_MAX_MD_SIZE];
1123 unsigned int md_len;
1126 pthread_mutex_lock(&lock);
1128 EVP_MD_CTX_init(&mdctx);
1133 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
1134 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
1135 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
1138 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1139 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1140 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1141 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1142 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1143 pthread_mutex_unlock(&lock);
1148 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1151 for (i = 0; i < 16; i++)
1154 for (offset = 16; offset < len; offset += 16) {
1156 printf("text + offset - 16 c(%d): ", offset / 16);
1157 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1159 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1160 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1161 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1162 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1164 pthread_mutex_unlock(&lock);
1168 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1171 for (i = 0; i < 16; i++)
1172 text[offset + i] ^= hash[i];
1176 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
1179 pthread_mutex_unlock(&lock);
1183 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1184 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1185 static unsigned char first = 1;
1186 static EVP_MD_CTX mdctx;
1187 unsigned char hash[EVP_MAX_MD_SIZE];
1188 unsigned int md_len;
1192 pthread_mutex_lock(&lock);
1194 EVP_MD_CTX_init(&mdctx);
1199 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
1200 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
1201 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
1204 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1205 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1206 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1207 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1208 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1209 pthread_mutex_unlock(&lock);
1214 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1217 for (i = 0; i < 16; i++)
1218 plain[i] = text[i] ^ hash[i];
1220 for (offset = 16; offset < len; offset += 16) {
1222 printf("text + offset - 16 c(%d): ", offset / 16);
1223 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1225 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1226 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1227 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1228 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1230 pthread_mutex_unlock(&lock);
1234 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1237 for (i = 0; i < 16; i++)
1238 plain[offset + i] = text[offset + i] ^ hash[i];
1241 memcpy(text, plain, len);
1243 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
1246 pthread_mutex_unlock(&lock);
1250 struct realm *id2realm(struct list *realmlist, char *id) {
1251 struct list_node *entry;
1252 struct realm *realm, *subrealm = NULL;
1254 /* need to do locking for subrealms and check subrealm timers */
1255 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1256 realm = (struct realm *)entry->data;
1257 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
1258 pthread_mutex_lock(&realm->subrealms_mutex);
1259 if (realm->subrealms)
1260 subrealm = id2realm(realm->subrealms, id);
1261 pthread_mutex_unlock(&realm->subrealms_mutex);
1262 return subrealm ? subrealm : realm;
1268 /* helper function, only used by removeserversubrealms() */
1269 void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1270 struct list_node *entry;
1271 struct realm *realm;
1273 for (entry = list_first(realmlist); entry;) {
1274 realm = (struct realm *)entry->data;
1275 entry = list_next(entry);
1276 if (realm->srvconfs) {
1277 list_removedata(realm->srvconfs, srv);
1278 if (!list_first(realm->srvconfs)) {
1279 list_destroy(realm->srvconfs);
1280 realm->srvconfs = NULL;
1283 if (realm->accsrvconfs) {
1284 list_removedata(realm->accsrvconfs, srv);
1285 if (!list_first(realm->accsrvconfs)) {
1286 list_destroy(realm->accsrvconfs);
1287 realm->accsrvconfs = NULL;
1291 /* remove subrealm if no servers */
1292 if (!realm->srvconfs && !realm->accsrvconfs) {
1293 list_removedata(realmlist, realm);
1299 void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1300 struct list_node *entry;
1301 struct realm *realm;
1303 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1304 realm = (struct realm *)entry->data;
1305 pthread_mutex_lock(&realm->subrealms_mutex);
1306 if (realm->subrealms) {
1307 _internal_removeserversubrealms(realm->subrealms, srv);
1308 if (!list_first(realm->subrealms)) {
1309 list_destroy(realm->subrealms);
1310 realm->subrealms = NULL;
1313 pthread_mutex_unlock(&realm->subrealms_mutex);
1317 int attrvalidate(unsigned char *attrs, int length) {
1318 while (length > 1) {
1319 if (ATTRLEN(attrs) < 2) {
1320 debug(DBG_WARN, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
1323 length -= ATTRLEN(attrs);
1325 debug(DBG_WARN, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
1328 attrs += ATTRLEN(attrs);
1331 debug(DBG_WARN, "attrvalidate: malformed packet? remaining byte after last attribute");
1335 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1336 if (len < 16 || len > 128 || len % 16) {
1337 debug(DBG_WARN, "pwdrecrypt: invalid password length");
1341 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
1342 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
1346 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
1348 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
1349 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
1355 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, unsigned char *oldauth, char *newauth) {
1358 if (!msmppdecrypt(msmpp + 2, len - 2, (unsigned char *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
1359 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
1362 if (!msmppencrypt(msmpp + 2, len - 2, (unsigned char *)newsecret, strlen(newsecret), (unsigned char *)newauth, msmpp)) {
1363 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
1369 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
1370 char *oldsecret, char *newsecret) {
1371 unsigned char *attr;
1373 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
1374 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
1375 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->origauth))
1381 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint8_t subattr) {
1385 for (; attrs[0]; attrs += 2)
1386 if (attrs[0] == vendor && attrs[1] == subattr)
1391 /* returns 1 if entire element is to be removed, else 0 */
1392 int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
1393 uint8_t alen, sublen;
1397 if (!removevendorattrs)
1400 memcpy(&vendor, attr->v, 4);
1401 vendor = ntohl(vendor);
1402 while (*removevendorattrs && *removevendorattrs != vendor)
1403 removevendorattrs += 2;
1404 if (!*removevendorattrs)
1407 if (findvendorsubattr(removevendorattrs, vendor, -1))
1408 return 1; /* remove entire vendor attribute */
1410 sublen = attr->l - 4;
1411 subattrs = attr->v + 4;
1413 if (!attrvalidate(subattrs, sublen)) {
1414 debug(DBG_WARN, "dovendorrewrite: vendor attribute validation failed, no rewrite");
1418 while (sublen > 1) {
1419 alen = ATTRLEN(subattrs);
1421 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
1422 memmove(subattrs, subattrs + alen, sublen);
1430 void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
1431 struct list_node *n, *p;
1435 n = list_first(msg->attrs);
1437 attr = (struct tlv *)n->data;
1438 if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
1439 (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
1440 list_removedata(msg->attrs, attr);
1442 n = p ? list_next(p) : list_first(msg->attrs);
1449 int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
1450 struct list_node *n;
1453 for (n = list_first(addattrs); n; n = list_next(n)) {
1454 a = copytlv((struct tlv *)n->data);
1457 if (!radmsg_add(msg, a)) {
1465 int resizeattr(struct tlv *attr, uint8_t newlen) {
1468 if (newlen != attr->l) {
1469 newv = realloc(attr->v, newlen);
1478 int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
1479 size_t nmatch = 10, reslen = 0, start = 0;
1480 regmatch_t pmatch[10], *pfield;
1484 in = stringcopy((char *)attr->v, attr->l);
1488 if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
1493 out = modattr->replacement;
1495 for (i = start; out[i]; i++) {
1496 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1497 pfield = &pmatch[out[i + 1] - '0'];
1498 if (pfield->rm_so >= 0) {
1499 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1505 reslen += i - start;
1507 debug(DBG_WARN, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
1512 if (!resizeattr(attr, reslen)) {
1519 for (i = start; out[i]; i++) {
1520 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1521 pfield = &pmatch[out[i + 1] - '0'];
1522 if (pfield->rm_so >= 0) {
1523 memcpy(attr->v + reslen, out + start, i - start);
1524 reslen += i - start;
1525 memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1526 reslen += pfield->rm_eo - pfield->rm_so;
1533 memcpy(attr->v + reslen, out + start, i - start);
1537 int dorewritemod(struct radmsg *msg, struct list *modattrs) {
1538 struct list_node *n, *m;
1540 for (n = list_first(msg->attrs); n; n = list_next(n))
1541 for (m = list_first(modattrs); m; m = list_next(m))
1542 if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
1543 !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
1548 int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
1551 if (rewrite->removeattrs || rewrite->removevendorattrs)
1552 dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
1553 if (rewrite->addattrs && !dorewriteadd(msg, rewrite->addattrs))
1555 if (rewrite->modattrs && !dorewritemod(msg, rewrite->modattrs))
1560 int rewriteusername(struct request *rq, struct tlv *attr) {
1561 char *orig = (char *)tlv2str(attr);
1562 if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
1566 if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
1567 rq->origusername = (char *)orig;
1573 const char *radmsgtype2string(uint8_t code) {
1574 static const char *rad_msg_names[] = {
1575 "", "Access-Request", "Access-Accept", "Access-Reject",
1576 "Accounting-Request", "Accounting-Response", "", "",
1577 "", "", "", "Access-Challenge",
1578 "Status-Server", "Status-Client"
1580 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1583 void char2hex(char *h, unsigned char c) {
1584 static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
1585 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
1586 h[0] = hexdigits[c / 16];
1587 h[1] = hexdigits[c % 16];
1591 uint8_t *radattr2ascii(struct tlv *attr) {
1599 for (i = 0; i < attr->l; i++)
1600 if (attr->v[i] < 32 || attr->v[i] > 126)
1603 return (uint8_t *)stringcopy((char *)attr->v, attr->l);
1610 for (i = 0; i < attr->l; i++)
1611 if (attr->v[i] < 32 || attr->v[i] > 126) {
1613 char2hex((char *)d, attr->v[i]);
1621 void acclog(struct radmsg *msg, char *host) {
1625 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1627 debug(DBG_INFO, "acclog: accounting-request from %s without username attribute", host);
1630 username = radattr2ascii(attr);
1632 debug(DBG_INFO, "acclog: accounting-request from %s with username: %s", host, username);
1637 void respond(struct request *rq, uint8_t code, char *message) {
1641 msg = radmsg_init(code, rq->msg->id, rq->msg->auth);
1643 debug(DBG_ERR, "respond: malloc failed");
1646 if (message && *message) {
1647 attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
1648 if (!attr || !radmsg_add(msg, attr)) {
1651 debug(DBG_ERR, "respond: malloc failed");
1656 radmsg_free(rq->msg);
1658 debug(DBG_DBG, "respond: sending %s to %s", radmsgtype2string(msg->code), rq->from->conf->host);
1663 struct clsrvconf *choosesrvconf(struct list *srvconfs) {
1664 struct list_node *entry;
1665 struct clsrvconf *server, *best = NULL, *first = NULL;
1667 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1668 server = (struct clsrvconf *)entry->data;
1669 if (!server->servers)
1673 if (!server->servers->connectionok)
1675 if (!server->servers->lostrqs)
1681 if (server->servers->lostrqs < best->servers->lostrqs)
1684 return best ? best : first;
1687 struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
1688 struct clsrvconf *srvconf;
1689 char *id = (char *)tlv2str(username);
1693 *realm = id2realm(realms, id);
1698 debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
1699 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1704 if (!acc && !srvconf->servers)
1705 adddynamicrealmserver(*realm, srvconf, id);
1707 return srvconf->servers;
1711 struct request *newrequest() {
1714 rq = malloc(sizeof(struct request));
1716 debug(DBG_ERR, "newrequest: malloc failed");
1719 memset(rq, 0, sizeof(struct request));
1721 gettimeofday(&rq->created, NULL);
1725 int addclientrq(struct request *rq, uint8_t id) {
1729 pthread_mutex_lock(&rq->from->lock);
1730 gettimeofday(&now, NULL);
1731 r = rq->from->rqs[id];
1733 if (now.tv_sec - r->created.tv_sec < r->from->conf->dupinterval) {
1737 debug(DBG_INFO, "radsrv: already sent reply to request with id %d from %s, resending", id, r->from->conf->host);
1742 debug(DBG_INFO, "radsrv: already got request with id %d from %s, ignoring", id, r->from->conf->host);
1743 pthread_mutex_unlock(&rq->from->lock);
1749 rq->from->rqs[id] = rq;
1750 pthread_mutex_unlock(&rq->from->lock);
1754 void rmclientrq(struct request *rq, uint8_t id) {
1757 pthread_mutex_lock(&rq->from->lock);
1758 r = rq->from->rqs[id];
1761 rq->from->rqs[id] = NULL;
1763 pthread_mutex_unlock(&rq->from->lock);
1766 /* returns 0 if validation/authentication fails, else 1 */
1767 int radsrv(struct request *rq) {
1768 struct radmsg *msg = NULL;
1770 uint8_t *userascii = NULL;
1771 unsigned char newauth[16];
1772 struct realm *realm = NULL;
1773 struct server *to = NULL;
1774 struct client *from = rq->from;
1776 msg = buf2radmsg(rq->buf, (uint8_t *)from->conf->secret, NULL);
1781 debug(DBG_WARN, "radsrv: message validation failed, ignoring packet");
1787 debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
1788 if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
1789 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1793 if (!addclientrq(rq, msg->id))
1796 if (msg->code == RAD_Status_Server) {
1797 respond(rq, RAD_Access_Accept, NULL);
1801 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1803 if (from->conf->rewritein && !dorewrite(msg, from->conf->rewritein))
1806 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1808 if (msg->code == RAD_Accounting_Request) {
1809 acclog(msg, from->conf->host);
1810 respond(rq, RAD_Accounting_Response, NULL);
1812 debug(DBG_WARN, "radsrv: ignoring access request, no username attribute");
1816 if (from->conf->rewriteusername && !rewriteusername(rq, attr)) {
1817 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1821 userascii = radattr2ascii(attr);
1824 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
1826 to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
1828 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1833 if (realm->message && msg->code == RAD_Access_Request) {
1834 debug(DBG_INFO, "radsrv: sending reject to %s for %s", from->conf->host, userascii);
1835 respond(rq, RAD_Access_Reject, realm->message);
1836 } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
1837 acclog(msg, from->conf->host);
1838 respond(rq, RAD_Accounting_Response, NULL);
1843 if (options.loopprevention && !strcmp(from->conf->name, to->conf->name)) {
1844 debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s to server %s, discarding",
1845 from->conf->name, to->conf->name);
1849 if (msg->code != RAD_Accounting_Request) {
1850 if (!RAND_bytes(newauth, 16)) {
1851 debug(DBG_WARN, "radsrv: failed to generate random auth");
1857 printfchars(NULL, "auth", "%02x ", auth, 16);
1860 attr = radmsg_gettype(msg, RAD_Attr_User_Password);
1862 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
1863 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, msg->auth, newauth))
1867 attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
1869 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
1870 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, msg->auth, newauth))
1874 rq->origid = msg->id;
1875 memcpy(rq->origauth, msg->auth, 16);
1876 memcpy(msg->auth, newauth, 16);
1878 if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
1886 rmclientrq(rq, msg->id);
1893 void replyh(struct server *server, unsigned char *buf) {
1894 struct client *from;
1895 struct rqout *rqout;
1897 unsigned char *subattrs;
1898 uint8_t *username, *stationid, *replymsg;
1899 struct radmsg *msg = NULL;
1901 struct list_node *node;
1903 server->connectionok = 1;
1904 server->lostrqs = 0;
1906 rqout = server->requests + buf[1];
1907 pthread_mutex_lock(rqout->lock);
1908 if (!rqout->tries) {
1911 debug(DBG_INFO, "replyh: no outstanding request with this id, ignoring reply");
1915 msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rqout->rq->msg->auth);
1919 debug(DBG_WARN, "replyh: message validation failed, ignoring packet");
1922 if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
1923 && msg->code != RAD_Accounting_Response) {
1924 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
1927 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
1929 gettimeofday(&server->lastrcv, NULL);
1931 if (rqout->rq->msg->code == RAD_Status_Server) {
1932 freerqoutdata(rqout);
1933 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->host);
1937 gettimeofday(&server->lastreply, NULL);
1938 from = rqout->rq->from;
1940 if (server->conf->rewritein && !dorewrite(msg, from->conf->rewritein)) {
1941 debug(DBG_WARN, "replyh: rewritein failed");
1946 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1947 attr = (struct tlv *)node->data;
1948 if (attr->t != RAD_Attr_Vendor_Specific)
1952 if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
1955 sublen = attr->l - 4;
1956 subattrs = attr->v + 4;
1957 if (!attrvalidate(subattrs, sublen) ||
1958 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1959 rqout->rq, server->conf->secret, from->conf->secret) ||
1960 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1961 rqout->rq, server->conf->secret, from->conf->secret))
1965 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
1969 if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
1970 username = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_User_Name));
1972 stationid = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_Calling_Station_Id));
1973 replymsg = radattr2ascii(radmsg_gettype(msg, RAD_Attr_Reply_Message));
1976 debug(DBG_INFO, "%s for user %s stationid %s from %s (%s)",
1977 radmsgtype2string(msg->code), username, stationid, server->conf->host, replymsg);
1980 debug(DBG_INFO, "%s for user %s stationid %s from %s",
1981 radmsgtype2string(msg->code), username, stationid, server->conf->host);
1985 debug(DBG_INFO, "%s for user %s from %s (%s)",
1986 radmsgtype2string(msg->code), username, server->conf->host, replymsg);
1989 debug(DBG_INFO, "%s for user %s from %s",
1990 radmsgtype2string(msg->code), username, server->conf->host);
1996 msg->id = (char)rqout->rq->origid;
1997 memcpy(msg->auth, rqout->rq->origauth, 16);
2000 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
2003 if (rqout->rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
2004 if (!resizeattr(attr, strlen(rqout->rq->origusername))) {
2005 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
2008 memcpy(attr->v, rqout->rq->origusername, strlen(rqout->rq->origusername));
2011 if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
2012 debug(DBG_WARN, "replyh: rewriteout failed");
2016 debug(DBG_INFO, "replyh: passing reply to client %s", from->conf->name);
2017 radmsg_free(rqout->rq->msg);
2018 rqout->rq->msg = msg;
2019 rqout->rq->refcount++;
2020 sendreply(rqout->rq);
2021 freerqoutdata(rqout);
2022 pthread_mutex_unlock(rqout->lock);
2027 pthread_mutex_unlock(rqout->lock);
2031 struct request *createstatsrvrq() {
2038 rq->msg = radmsg_init(RAD_Status_Server, 0, NULL);
2041 attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
2044 if (!radmsg_add(rq->msg, attr)) {
2055 /* code for removing state not finished */
2056 void *clientwr(void *arg) {
2057 struct server *server = (struct server *)arg;
2058 struct rqout *rqout = NULL;
2059 pthread_t clientrdth;
2060 int i, secs, dynconffail = 0;
2062 struct timeval now, laststatsrv;
2063 struct timespec timeout;
2064 struct request *statsrvrq;
2065 struct clsrvconf *conf;
2067 conf = server->conf;
2069 if (server->dynamiclookuparg && !dynamicconfig(server)) {
2074 if (!conf->addrinfo && !resolvepeer(conf, 0)) {
2075 debug(DBG_WARN, "failed to resolve host %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
2079 memset(&timeout, 0, sizeof(struct timespec));
2081 if (conf->statusserver) {
2082 gettimeofday(&server->lastrcv, NULL);
2083 gettimeofday(&laststatsrv, NULL);
2086 if (conf->pdef->connecter) {
2087 if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 6 : 0, "clientwr"))
2089 server->connectionok = 1;
2090 if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
2091 debug(DBG_ERR, "clientwr: pthread_create failed");
2095 server->connectionok = 1;
2098 pthread_mutex_lock(&server->newrq_mutex);
2099 if (!server->newrq) {
2100 gettimeofday(&now, NULL);
2101 /* random 0-7 seconds */
2102 RAND_bytes(&rnd, 1);
2104 if (conf->statusserver) {
2105 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2106 if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
2107 timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
2109 if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
2110 timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
2113 if (timeout.tv_sec > now.tv_sec)
2114 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
2116 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
2119 if (server->newrq) {
2120 debug(DBG_DBG, "clientwr: got new request");
2125 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
2127 pthread_mutex_unlock(&server->newrq_mutex);
2129 for (i = 0; i < MAX_REQUESTS; i++) {
2130 if (server->clientrdgone) {
2131 pthread_join(clientrdth, NULL);
2135 for (; i < MAX_REQUESTS; i++) {
2136 rqout = server->requests + i;
2138 pthread_mutex_lock(rqout->lock);
2141 pthread_mutex_unlock(rqout->lock);
2145 if (i == MAX_REQUESTS)
2148 gettimeofday(&now, NULL);
2149 if (now.tv_sec < rqout->expiry.tv_sec) {
2150 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2151 timeout.tv_sec = rqout->expiry.tv_sec;
2152 pthread_mutex_unlock(rqout->lock);
2156 if (rqout->tries == (*rqout->rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
2157 debug(DBG_DBG, "clientwr: removing expired packet from queue");
2158 if (conf->statusserver) {
2159 if (*rqout->rq->buf == RAD_Status_Server) {
2160 debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->host);
2161 if (server->lostrqs < 255)
2165 debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->host);
2166 if (server->lostrqs < 255)
2169 freerqoutdata(rqout);
2170 pthread_mutex_unlock(rqout->lock);
2174 rqout->expiry.tv_sec = now.tv_sec + conf->retryinterval;
2175 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2176 timeout.tv_sec = rqout->expiry.tv_sec;
2178 conf->pdef->clientradput(server, rqout->rq->buf);
2179 pthread_mutex_unlock(rqout->lock);
2181 if (conf->statusserver) {
2182 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2183 gettimeofday(&now, NULL);
2184 if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
2186 statsrvrq = createstatsrvrq();
2188 debug(DBG_DBG, "clientwr: sending status server to %s", conf->host);
2189 sendrq(server, statsrvrq);
2195 conf->servers = NULL;
2196 if (server->dynamiclookuparg) {
2197 removeserversubrealms(realms, conf);
2201 freeclsrvconf(conf);
2203 freeserver(server, 1);
2204 ERR_remove_state(0);
2208 void createlistener(uint8_t type, char *arg) {
2210 struct clsrvconf *listenres;
2211 struct addrinfo *res;
2212 int s = -1, on = 1, *sp = NULL;
2214 listenres = resolve_hostport(type, arg, protodefs[type].portdefault);
2216 debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
2218 for (res = listenres->addrinfo; res; res = res->ai_next) {
2219 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
2221 debug(DBG_WARN, "createlistener: socket failed");
2224 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
2226 if (res->ai_family == AF_INET6)
2227 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
2229 if (bind(s, res->ai_addr, res->ai_addrlen)) {
2230 debug(DBG_WARN, "createlistener: bind failed");
2236 sp = malloc(sizeof(int));
2238 debugx(1, DBG_ERR, "malloc failed");
2240 if (pthread_create(&th, NULL, protodefs[type].listener, (void *)sp))
2241 debugx(1, DBG_ERR, "pthread_create failed");
2245 debugx(1, DBG_ERR, "createlistener: socket/bind failed");
2247 debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type].name,
2248 listenres->host ? listenres->host : "*", listenres->port);
2249 freeclsrvres(listenres);
2252 void createlisteners(uint8_t type, char **args) {
2256 for (i = 0; args[i]; i++)
2257 createlistener(type, args[i]);
2259 createlistener(type, NULL);
2263 void ssl_info_callback(const SSL *ssl, int where, int ret) {
2267 w = where & ~SSL_ST_MASK;
2269 if (w & SSL_ST_CONNECT)
2271 else if (w & SSL_ST_ACCEPT)
2276 if (where & SSL_CB_LOOP)
2277 debug(DBG_DBG, "%s:%s\n", s, SSL_state_string_long(ssl));
2278 else if (where & SSL_CB_ALERT) {
2279 s = (where & SSL_CB_READ) ? "read" : "write";
2280 debug(DBG_DBG, "SSL3 alert %s:%s:%s\n", s, SSL_alert_type_string_long(ret), SSL_alert_desc_string_long(ret));
2282 else if (where & SSL_CB_EXIT) {
2284 debug(DBG_DBG, "%s:failed in %s\n", s, SSL_state_string_long(ssl));
2286 debug(DBG_DBG, "%s:error in %s\n", s, SSL_state_string_long(ssl));
2291 SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
2292 SSL_CTX *ctx = NULL;
2293 STACK_OF(X509_NAME) *calist;
2296 unsigned long error;
2299 ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
2300 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
2301 for (i = 0; i < CRYPTO_num_locks(); i++) {
2302 ssl_lock_count[i] = 0;
2303 pthread_mutex_init(&ssl_locks[i], NULL);
2305 CRYPTO_set_id_callback(ssl_thread_id);
2306 CRYPTO_set_locking_callback(ssl_locking_callback);
2308 SSL_load_error_strings();
2311 while (!RAND_status()) {
2312 time_t t = time(NULL);
2313 pid_t pid = getpid();
2314 RAND_seed((unsigned char *)&t, sizeof(time_t));
2315 RAND_seed((unsigned char *)&pid, sizeof(pid));
2321 ctx = SSL_CTX_new(TLSv1_method());
2323 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2327 ctx = SSL_CTX_new(DTLSv1_method());
2329 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2331 SSL_CTX_set_read_ahead(ctx, 1);
2335 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2339 if (conf->certkeypwd) {
2340 SSL_CTX_set_default_passwd_cb_userdata(ctx, conf->certkeypwd);
2341 SSL_CTX_set_default_passwd_cb(ctx, pem_passwd_cb);
2343 if (!SSL_CTX_use_certificate_chain_file(ctx, conf->certfile) ||
2344 !SSL_CTX_use_PrivateKey_file(ctx, conf->certkeyfile, SSL_FILETYPE_PEM) ||
2345 !SSL_CTX_check_private_key(ctx) ||
2346 !SSL_CTX_load_verify_locations(ctx, conf->cacertfile, conf->cacertpath)) {
2347 while ((error = ERR_get_error()))
2348 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2349 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2354 calist = conf->cacertfile ? SSL_load_client_CA_file(conf->cacertfile) : NULL;
2355 if (!conf->cacertfile || calist) {
2356 if (conf->cacertpath) {
2358 calist = sk_X509_NAME_new_null();
2359 if (!SSL_add_dir_cert_subjects_to_stack(calist, conf->cacertpath)) {
2360 sk_X509_NAME_free(calist);
2366 while ((error = ERR_get_error()))
2367 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2368 debug(DBG_ERR, "tlscreatectx: Error adding CA subjects in TLS context %s", conf->name);
2372 ERR_clear_error(); /* add_dir_cert_subj returns errors on success */
2373 SSL_CTX_set_client_CA_list(ctx, calist);
2375 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
2376 SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
2378 if (conf->crlcheck) {
2379 x509_s = SSL_CTX_get_cert_store(ctx);
2380 X509_STORE_set_flags(x509_s, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL);
2383 debug(DBG_DBG, "tlscreatectx: created TLS context %s", conf->name);
2387 SSL_CTX *tlsgetctx(uint8_t type, char *alt1, char *alt2) {
2390 t = hash_read(tlsconfs, alt1, strlen(alt1));
2392 t = hash_read(tlsconfs, alt2, strlen(alt2));
2400 t->tlsctx = tlscreatectx(RAD_TLS, t);
2404 t->dtlsctx = tlscreatectx(RAD_DTLS, t);
2410 struct list *addsrvconfs(char *value, char **names) {
2411 struct list *conflist;
2413 struct list_node *entry;
2414 struct clsrvconf *conf = NULL;
2416 if (!names || !*names)
2419 conflist = list_create();
2421 debug(DBG_ERR, "malloc failed");
2425 for (n = 0; names[n]; n++) {
2426 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2427 conf = (struct clsrvconf *)entry->data;
2428 if (!strcasecmp(names[n], conf->name))
2432 debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
2433 list_destroy(conflist);
2436 if (!list_push(conflist, conf)) {
2437 debug(DBG_ERR, "malloc failed");
2438 list_destroy(conflist);
2441 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2446 void freerealm(struct realm *realm) {
2450 free(realm->message);
2451 regfree(&realm->regex);
2452 pthread_mutex_destroy(&realm->subrealms_mutex);
2453 if (realm->subrealms)
2454 list_destroy(realm->subrealms);
2455 if (realm->srvconfs) {
2456 /* emptying list without freeing data */
2457 while (list_shift(realm->srvconfs));
2458 list_destroy(realm->srvconfs);
2460 if (realm->accsrvconfs) {
2461 /* emptying list without freeing data */
2462 while (list_shift(realm->accsrvconfs));
2463 list_destroy(realm->accsrvconfs);
2468 struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
2470 struct realm *realm;
2471 char *s, *regex = NULL;
2473 if (*value == '/') {
2474 /* regexp, remove optional trailing / if present */
2475 if (value[strlen(value) - 1] == '/')
2476 value[strlen(value) - 1] = '\0';
2478 /* not a regexp, let us make it one */
2479 if (*value == '*' && !value[1])
2480 regex = stringcopy(".*", 0);
2482 for (n = 0, s = value; *s;)
2485 regex = malloc(strlen(value) + n + 3);
2488 for (n = 1, s = value; *s; s++) {
2498 debug(DBG_ERR, "malloc failed");
2502 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2505 realm = malloc(sizeof(struct realm));
2507 debug(DBG_ERR, "malloc failed");
2510 memset(realm, 0, sizeof(struct realm));
2512 if (pthread_mutex_init(&realm->subrealms_mutex, NULL)) {
2513 debug(DBG_ERR, "mutex init failed");
2519 realm->name = stringcopy(value, 0);
2521 debug(DBG_ERR, "malloc failed");
2524 if (message && strlen(message) > 253) {
2525 debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
2528 realm->message = message;
2529 realm->accresp = accresp;
2531 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2532 debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2536 if (servers && *servers) {
2537 realm->srvconfs = addsrvconfs(value, servers);
2538 if (!realm->srvconfs)
2542 if (accservers && *accservers) {
2543 realm->accsrvconfs = addsrvconfs(value, accservers);
2544 if (!realm->accsrvconfs)
2548 if (!list_push(realmlist, realm)) {
2549 debug(DBG_ERR, "malloc failed");
2550 pthread_mutex_destroy(&realm->subrealms_mutex);
2554 debug(DBG_DBG, "addrealm: added realm %s", value);
2564 for (n = 0; servers[n]; n++)
2569 for (n = 0; accservers[n]; n++)
2570 free(accservers[n]);
2576 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id) {
2577 struct clsrvconf *srvconf;
2578 struct realm *newrealm = NULL;
2579 char *realmname, *s;
2582 if (!conf->dynamiclookupcommand)
2585 /* create dynamic for the realm (string after last @, exit if nothing after @ */
2586 realmname = strrchr(id, '@');
2592 for (s = realmname; *s; s++)
2593 if (*s != '.' && *s != '-' && !isalnum((int)*s))
2596 pthread_mutex_lock(&realm->subrealms_mutex);
2597 /* exit if we now already got a matching subrealm */
2598 if (id2realm(realm->subrealms, id))
2600 srvconf = malloc(sizeof(struct clsrvconf));
2602 debug(DBG_ERR, "malloc failed");
2606 if (!addserver(srvconf))
2609 if (!realm->subrealms)
2610 realm->subrealms = list_create();
2611 if (!realm->subrealms)
2613 newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, NULL, 0);
2617 /* add server and accserver to newrealm */
2618 newrealm->srvconfs = list_create();
2619 if (!newrealm->srvconfs || !list_push(newrealm->srvconfs, srvconf)) {
2620 debug(DBG_ERR, "malloc failed");
2623 newrealm->accsrvconfs = list_create();
2624 if (!newrealm->accsrvconfs || !list_push(newrealm->accsrvconfs, srvconf)) {
2625 debug(DBG_ERR, "malloc failed");
2629 srvconf->servers->dynamiclookuparg = stringcopy(realmname, 0);
2631 if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
2632 debug(DBG_ERR, "pthread_create failed");
2635 pthread_detach(clientth);
2640 list_removedata(realm->subrealms, newrealm);
2641 freerealm(newrealm);
2642 if (!list_first(realm->subrealms)) {
2643 list_destroy(realm->subrealms);
2644 realm->subrealms = NULL;
2647 freeserver(srvconf->servers, 1);
2649 debug(DBG_ERR, "failed to create dynamic server");
2652 pthread_mutex_unlock(&realm->subrealms_mutex);
2655 int dynamicconfig(struct server *server) {
2656 int ok, fd[2], status;
2658 struct clsrvconf *conf = server->conf;
2659 struct gconffile *cf = NULL;
2661 /* for now we only learn hostname/address */
2662 debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
2665 debug(DBG_ERR, "dynamicconfig: pipe error");
2670 debug(DBG_ERR, "dynamicconfig: fork error");
2674 } else if (pid == 0) {
2677 if (fd[1] != STDOUT_FILENO) {
2678 if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
2679 debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
2682 if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
2683 debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
2687 pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
2688 ok = getgenericconfig(&cf, NULL,
2689 "Server", CONF_CBK, confserver_cb, (void *)conf,
2694 if (waitpid(pid, &status, 0) < 0) {
2695 debug(DBG_ERR, "dynamicconfig: wait error");
2700 debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
2708 debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
2712 int addmatchcertattr(struct clsrvconf *conf) {
2716 if (!strncasecmp(conf->matchcertattr, "CN:/", 4)) {
2717 r = &conf->certcnregex;
2718 v = conf->matchcertattr + 4;
2719 } else if (!strncasecmp(conf->matchcertattr, "SubjectAltName:URI:/", 20)) {
2720 r = &conf->certuriregex;
2721 v = conf->matchcertattr + 20;
2726 /* regexp, remove optional trailing / if present */
2727 if (v[strlen(v) - 1] == '/')
2728 v[strlen(v) - 1] = '\0';
2732 *r = malloc(sizeof(regex_t));
2734 debug(DBG_ERR, "malloc failed");
2737 if (regcomp(*r, v, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2740 debug(DBG_ERR, "failed to compile regular expression %s", v);
2746 /* should accept both names and numeric values, only numeric right now */
2747 uint8_t attrname2val(char *attrname) {
2750 val = atoi(attrname);
2751 return val > 0 && val < 256 ? val : 0;
2754 /* should accept both names and numeric values, only numeric right now */
2755 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2758 *vendor = atoi(attrname);
2759 s = strchr(attrname, ':');
2764 *type = atoi(s + 1);
2765 return *type >= 0 && *type < 256;
2768 /* should accept both names and numeric values, only numeric right now */
2769 struct tlv *extractattr(char *nameval) {
2774 s = strchr(nameval, ':');
2775 name = atoi(nameval);
2776 if (!s || name < 1 || name > 255)
2778 len = strlen(s + 1);
2781 a = malloc(sizeof(struct tlv));
2784 a->v = (uint8_t *)stringcopy(s + 1, 0);
2794 /* should accept both names and numeric values, only numeric right now */
2795 struct modattr *extractmodattr(char *nameval) {
2800 if (!strncasecmp(nameval, "User-Name:/", 11)) {
2804 s = strchr(nameval, ':');
2805 name = atoi(nameval);
2806 if (!s || name < 1 || name > 255 || s[1] != '/')
2810 /* regexp, remove optional trailing / if present */
2811 if (s[strlen(s) - 1] == '/')
2812 s[strlen(s) - 1] = '\0';
2820 m = malloc(sizeof(struct modattr));
2822 debug(DBG_ERR, "malloc failed");
2827 m->replacement = stringcopy(t, 0);
2828 if (!m->replacement) {
2830 debug(DBG_ERR, "malloc failed");
2834 m->regex = malloc(sizeof(regex_t));
2836 free(m->replacement);
2838 debug(DBG_ERR, "malloc failed");
2842 if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
2844 free(m->replacement);
2846 debug(DBG_ERR, "failed to compile regular expression %s", s);
2853 struct rewrite *getrewrite(char *alt1, char *alt2) {
2856 if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
2858 if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
2863 void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **modattrs) {
2864 struct rewrite *rewrite = NULL;
2866 uint8_t *rma = NULL;
2867 uint32_t *p, *rmva = NULL;
2868 struct list *adda = NULL, *moda = NULL;
2873 for (n = 0; rmattrs[n]; n++);
2874 rma = calloc(n + 1, sizeof(uint8_t));
2876 debugx(1, DBG_ERR, "malloc failed");
2878 for (i = 0; i < n; i++) {
2879 if (!(rma[i] = attrname2val(rmattrs[i])))
2880 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", rmattrs[i]);
2888 for (n = 0; rmvattrs[n]; n++);
2889 rmva = calloc(2 * n + 1, sizeof(uint32_t));
2891 debugx(1, DBG_ERR, "malloc failed");
2893 for (p = rmva, i = 0; i < n; i++, p += 2) {
2894 if (!vattrname2val(rmvattrs[i], p, p + 1))
2895 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", rmvattrs[i]);
2903 adda = list_create();
2905 debugx(1, DBG_ERR, "malloc failed");
2906 for (i = 0; addattrs[i]; i++) {
2907 a = extractattr(addattrs[i]);
2909 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addattrs[i]);
2911 if (!list_push(adda, a))
2912 debugx(1, DBG_ERR, "malloc failed");
2918 moda = list_create();
2920 debugx(1, DBG_ERR, "malloc failed");
2921 for (i = 0; modattrs[i]; i++) {
2922 m = extractmodattr(modattrs[i]);
2924 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", modattrs[i]);
2926 if (!list_push(moda, m))
2927 debugx(1, DBG_ERR, "malloc failed");
2932 if (rma || rmva || adda || moda) {
2933 rewrite = malloc(sizeof(struct rewrite));
2935 debugx(1, DBG_ERR, "malloc failed");
2936 rewrite->removeattrs = rma;
2937 rewrite->removevendorattrs = rmva;
2938 rewrite->addattrs = adda;
2939 rewrite->modattrs = moda;
2942 if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
2943 debugx(1, DBG_ERR, "malloc failed");
2944 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2947 void freeclsrvconf(struct clsrvconf *conf) {
2953 free(conf->matchcertattr);
2954 if (conf->certcnregex)
2955 regfree(conf->certcnregex);
2956 if (conf->certuriregex)
2957 regfree(conf->certuriregex);
2958 free(conf->confrewritein);
2959 free(conf->confrewriteout);
2960 if (conf->rewriteusername) {
2961 if (conf->rewriteusername->regex)
2962 regfree(conf->rewriteusername->regex);
2963 free(conf->rewriteusername->replacement);
2964 free(conf->rewriteusername);
2966 free(conf->dynamiclookupcommand);
2967 free(conf->rewritein);
2968 free(conf->rewriteout);
2970 freeaddrinfo(conf->addrinfo);
2972 pthread_mutex_destroy(conf->lock);
2975 /* not touching ssl_ctx, clients and servers */
2979 int mergeconfstring(char **dst, char **src) {
2988 t = stringcopy(*dst, 0);
2990 debug(DBG_ERR, "malloc failed");
2998 /* assumes dst is a shallow copy */
2999 int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
3000 if (!mergeconfstring(&dst->name, &src->name) ||
3001 !mergeconfstring(&dst->host, &src->host) ||
3002 !mergeconfstring(&dst->port, &src->port) ||
3003 !mergeconfstring(&dst->secret, &src->secret) ||
3004 !mergeconfstring(&dst->tls, &src->tls) ||
3005 !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
3006 !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
3007 !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
3008 !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
3011 dst->pdef = src->pdef;
3012 dst->statusserver = src->statusserver;
3013 dst->certnamecheck = src->certnamecheck;
3014 if (src->retryinterval != 255)
3015 dst->retryinterval = src->retryinterval;
3016 if (src->retrycount != 255)
3017 dst->retrycount = src->retrycount;
3021 int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3022 struct clsrvconf *conf;
3023 char *conftype = NULL, *rewriteinalias = NULL;
3024 long int dupinterval = LONG_MIN;
3026 debug(DBG_DBG, "confclient_cb called for %s", block);
3028 conf = malloc(sizeof(struct clsrvconf));
3030 debugx(1, DBG_ERR, "malloc failed");
3031 memset(conf, 0, sizeof(struct clsrvconf));
3032 conf->certnamecheck = 1;
3034 if (!getgenericconfig(cf, block,
3035 "type", CONF_STR, &conftype,
3036 "host", CONF_STR, &conf->host,
3037 "secret", CONF_STR, &conf->secret,
3038 "tls", CONF_STR, &conf->tls,
3039 "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
3040 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3041 "DuplicateInterval", CONF_LINT, &dupinterval,
3042 "rewrite", CONF_STR, &rewriteinalias,
3043 "rewriteIn", CONF_STR, &conf->confrewritein,
3044 "rewriteOut", CONF_STR, &conf->confrewriteout,
3045 "rewriteattribute", CONF_STR, &conf->confrewriteusername,
3048 debugx(1, DBG_ERR, "configuration error");
3050 conf->name = stringcopy(val, 0);
3052 conf->host = stringcopy(val, 0);
3053 if (!conf->name || !conf->host)
3054 debugx(1, DBG_ERR, "malloc failed");
3057 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3058 conf->type = protoname2int(conftype);
3059 conf->pdef = &protodefs[conf->type];
3060 if (!conf->pdef->name)
3061 debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3064 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3065 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultclient", "default");
3067 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
3068 if (conf->matchcertattr && !addmatchcertattr(conf))
3069 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3072 if (dupinterval != LONG_MIN) {
3073 if (dupinterval < 0 || dupinterval > 255)
3074 debugx(1, DBG_ERR, "error in block %s, value of option DuplicateInterval is %d, must be 0-255", block, dupinterval);
3075 conf->dupinterval = (uint8_t)dupinterval;
3077 conf->dupinterval = conf->pdef->duplicateintervaldefault;
3079 if (!conf->confrewritein)
3080 conf->confrewritein = rewriteinalias;
3082 free(rewriteinalias);
3083 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
3084 if (conf->confrewriteout)
3085 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3087 if (conf->confrewriteusername) {
3088 conf->rewriteusername = extractmodattr(conf->confrewriteusername);
3089 if (!conf->rewriteusername)
3090 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
3093 if (!resolvepeer(conf, 0))
3094 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3096 if (!conf->secret) {
3097 if (!conf->pdef->secretdefault)
3098 debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3099 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3101 debugx(1, DBG_ERR, "malloc failed");
3104 conf->lock = malloc(sizeof(pthread_mutex_t));
3106 debugx(1, DBG_ERR, "malloc failed");
3108 pthread_mutex_init(conf->lock, NULL);
3109 if (!list_push(clconfs, conf))
3110 debugx(1, DBG_ERR, "malloc failed");
3114 int compileserverconfig(struct clsrvconf *conf, const char *block) {
3115 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3116 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultserver", "default");
3117 if (!conf->ssl_ctx) {
3118 debug(DBG_ERR, "error in block %s, no tls context defined", block);
3121 if (conf->matchcertattr && !addmatchcertattr(conf)) {
3122 debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3128 conf->port = stringcopy(conf->pdef->portdefault, 0);
3130 debug(DBG_ERR, "malloc failed");
3135 if (conf->retryinterval == 255)
3136 conf->retryinterval = protodefs[conf->type].retryintervaldefault;
3137 if (conf->retrycount == 255)
3138 conf->retrycount = protodefs[conf->type].retrycountdefault;
3140 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
3141 if (conf->confrewriteout)
3142 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3144 if (!conf->secret) {
3145 if (!conf->pdef->secretdefault) {
3146 debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3149 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3150 if (!conf->secret) {
3151 debug(DBG_ERR, "malloc failed");
3156 if (!conf->dynamiclookupcommand && !resolvepeer(conf, 0)) {
3157 debug(DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3163 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3164 struct clsrvconf *conf, *resconf;
3165 char *conftype = NULL, *rewriteinalias = NULL;
3166 long int retryinterval = LONG_MIN, retrycount = LONG_MIN;
3168 debug(DBG_DBG, "confserver_cb called for %s", block);
3170 conf = malloc(sizeof(struct clsrvconf));
3172 debug(DBG_ERR, "malloc failed");
3175 memset(conf, 0, sizeof(struct clsrvconf));
3176 resconf = (struct clsrvconf *)arg;
3178 conf->statusserver = resconf->statusserver;
3179 conf->certnamecheck = resconf->certnamecheck;
3181 conf->certnamecheck = 1;
3183 if (!getgenericconfig(cf, block,
3184 "type", CONF_STR, &conftype,
3185 "host", CONF_STR, &conf->host,
3186 "port", CONF_STR, &conf->port,
3187 "secret", CONF_STR, &conf->secret,
3188 "tls", CONF_STR, &conf->tls,
3189 "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
3190 "rewrite", CONF_STR, &rewriteinalias,
3191 "rewriteIn", CONF_STR, &conf->confrewritein,
3192 "rewriteOut", CONF_STR, &conf->confrewriteout,
3193 "StatusServer", CONF_BLN, &conf->statusserver,
3194 "RetryInterval", CONF_LINT, &retryinterval,
3195 "RetryCount", CONF_LINT, &retrycount,
3196 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3197 "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
3200 debug(DBG_ERR, "configuration error");
3204 conf->name = stringcopy(val, 0);
3206 debug(DBG_ERR, "malloc failed");
3210 conf->host = stringcopy(val, 0);
3212 debug(DBG_ERR, "malloc failed");
3218 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3219 conf->type = protoname2int(conftype);
3220 conf->pdef = &protodefs[conf->type];
3221 if (!conf->pdef->name) {
3222 debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3228 if (!conf->confrewritein)
3229 conf->confrewritein = rewriteinalias;
3231 free(rewriteinalias);
3232 rewriteinalias = NULL;
3234 if (retryinterval != LONG_MIN) {
3235 if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
3236 debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
3239 conf->retryinterval = (uint8_t)retryinterval;
3241 conf->retryinterval = 255;
3243 if (retrycount != LONG_MIN) {
3244 if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
3245 debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
3248 conf->retrycount = (uint8_t)retrycount;
3250 conf->retrycount = 255;
3253 if (!mergesrvconf(resconf, conf))
3257 if (conf->dynamiclookupcommand) {
3258 free(conf->dynamiclookupcommand);
3259 conf->dynamiclookupcommand = NULL;
3263 if (resconf || !conf->dynamiclookupcommand) {
3264 if (!compileserverconfig(conf, block))
3271 if (!list_push(srvconfs, conf)) {
3272 debug(DBG_ERR, "malloc failed");
3279 free(rewriteinalias);
3280 freeclsrvconf(conf);
3284 int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3285 char **servers = NULL, **accservers = NULL, *msg = NULL;
3286 uint8_t accresp = 0;
3288 debug(DBG_DBG, "confrealm_cb called for %s", block);
3290 if (!getgenericconfig(cf, block,
3291 "server", CONF_MSTR, &servers,
3292 "accountingServer", CONF_MSTR, &accservers,
3293 "ReplyMessage", CONF_STR, &msg,
3294 "AccountingResponse", CONF_BLN, &accresp,
3297 debugx(1, DBG_ERR, "configuration error");
3299 addrealm(realms, val, servers, accservers, msg, accresp);
3303 int conftls_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3306 debug(DBG_DBG, "conftls_cb called for %s", block);
3308 conf = malloc(sizeof(struct tls));
3310 debug(DBG_ERR, "conftls_cb: malloc failed");
3313 memset(conf, 0, sizeof(struct tls));
3315 if (!getgenericconfig(cf, block,
3316 "CACertificateFile", CONF_STR, &conf->cacertfile,
3317 "CACertificatePath", CONF_STR, &conf->cacertpath,
3318 "CertificateFile", CONF_STR, &conf->certfile,
3319 "CertificateKeyFile", CONF_STR, &conf->certkeyfile,
3320 "CertificateKeyPassword", CONF_STR, &conf->certkeypwd,
3321 "CRLCheck", CONF_BLN, &conf->crlcheck,
3324 debug(DBG_ERR, "conftls_cb: configuration error in block %s", val);
3327 if (!conf->certfile || !conf->certkeyfile) {
3328 debug(DBG_ERR, "conftls_cb: TLSCertificateFile and TLSCertificateKeyFile must be specified in block %s", val);
3331 if (!conf->cacertfile && !conf->cacertpath) {
3332 debug(DBG_ERR, "conftls_cb: CA Certificate file or path need to be specified in block %s", val);
3336 conf->name = stringcopy(val, 0);
3338 debug(DBG_ERR, "conftls_cb: malloc failed");
3342 if (!hash_insert(tlsconfs, val, strlen(val), conf)) {
3343 debug(DBG_ERR, "conftls_cb: malloc failed");
3347 debug(DBG_DBG, "conftls_cb: added TLS block %s", val);
3351 free(conf->cacertfile);
3352 free(conf->cacertpath);
3353 free(conf->certfile);
3354 free(conf->certkeyfile);
3355 free(conf->certkeypwd);
3360 int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3361 char **rmattrs = NULL, **rmvattrs = NULL, **addattrs = NULL, **modattrs = NULL;
3363 debug(DBG_DBG, "confrewrite_cb called for %s", block);
3365 if (!getgenericconfig(cf, block,
3366 "removeAttribute", CONF_MSTR, &rmattrs,
3367 "removeVendorAttribute", CONF_MSTR, &rmvattrs,
3368 "addAttribute", CONF_MSTR, &addattrs,
3369 "modifyAttribute", CONF_MSTR, &modattrs,
3372 debugx(1, DBG_ERR, "configuration error");
3373 addrewrite(val, rmattrs, rmvattrs, addattrs, modattrs);
3377 void getmainconfig(const char *configfile) {
3378 long int loglevel = LONG_MIN;
3379 struct gconffile *cfs;
3381 cfs = openconfigfile(configfile);
3382 memset(&options, 0, sizeof(options));
3384 clconfs = list_create();
3386 debugx(1, DBG_ERR, "malloc failed");
3388 srvconfs = list_create();
3390 debugx(1, DBG_ERR, "malloc failed");
3392 realms = list_create();
3394 debugx(1, DBG_ERR, "malloc failed");
3396 tlsconfs = hash_create();
3398 debugx(1, DBG_ERR, "malloc failed");
3400 rewriteconfs = hash_create();
3402 debugx(1, DBG_ERR, "malloc failed");
3404 if (!getgenericconfig(&cfs, NULL,
3405 "ListenUDP", CONF_MSTR, &options.listenudp,
3406 "ListenTCP", CONF_MSTR, &options.listentcp,
3407 "ListenTLS", CONF_MSTR, &options.listentls,
3408 "ListenDTLS", CONF_MSTR, &options.listendtls,
3409 "ListenAccountingUDP", CONF_MSTR, &options.listenaccudp,
3410 "SourceUDP", CONF_STR, &options.sourceudp,
3411 "SourceTCP", CONF_STR, &options.sourcetcp,
3412 "SourceTLS", CONF_STR, &options.sourcetls,
3413 "SourceDTLS", CONF_STR, &options.sourcedtls,
3414 "LogLevel", CONF_LINT, &loglevel,
3415 "LogDestination", CONF_STR, &options.logdestination,
3416 "LoopPrevention", CONF_BLN, &options.loopprevention,
3417 "Client", CONF_CBK, confclient_cb, NULL,
3418 "Server", CONF_CBK, confserver_cb, NULL,
3419 "Realm", CONF_CBK, confrealm_cb, NULL,
3420 "TLS", CONF_CBK, conftls_cb, NULL,
3421 "Rewrite", CONF_CBK, confrewrite_cb, NULL,
3424 debugx(1, DBG_ERR, "configuration error");
3426 if (loglevel != LONG_MIN) {
3427 if (loglevel < 1 || loglevel > 4)
3428 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3 or 4", configfile, loglevel);
3429 options.loglevel = (uint8_t)loglevel;
3433 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile) {
3436 while ((c = getopt(argc, argv, "c:d:fpv")) != -1) {
3439 *configfile = optarg;
3442 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3443 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3444 *loglevel = *optarg - '0';
3453 debugx(0, DBG_ERR, "radsecproxy revision $Rev$");
3458 if (!(argc - optind))
3462 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -p ] [ -v ]", argv[0]);
3466 int daemon(int a, int b) {
3474 for (i = 0; i < 3; i++) {
3476 open("/dev/null", O_RDWR);
3482 void *sighandler(void *arg) {
3487 sigemptyset(&sigset);
3488 sigaddset(&sigset, SIGPIPE);
3489 sigwait(&sigset, &sig);
3490 /* only get SIGPIPE right now, so could simplify below code */
3493 /* completely ignoring this */
3496 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3499 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3504 int main(int argc, char **argv) {
3507 struct list_node *entry;
3508 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3509 char *configfile = NULL;
3510 struct clsrvconf *srvconf;
3513 debug_init("radsecproxy");
3514 debug_set_level(DEBUG_LEVEL);
3516 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile);
3518 debug_set_level(loglevel);
3519 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3521 options.loglevel = loglevel;
3522 else if (options.loglevel)
3523 debug_set_level(options.loglevel);
3525 debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
3526 free(options.logdestination);
3528 if (!list_first(clconfs))
3529 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3530 if (!list_first(realms))
3531 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3534 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3536 if (!foreground && (daemon(0, 0) < 0))
3537 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3539 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3541 sigemptyset(&sigset);
3542 /* exit on all but SIGPIPE, ignore more? */
3543 sigaddset(&sigset, SIGPIPE);
3544 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3545 pthread_create(&sigth, NULL, sighandler, NULL);
3547 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3548 srvconf = (struct clsrvconf *)entry->data;
3549 if (srvconf->dynamiclookupcommand)
3551 if (!addserver(srvconf))
3552 debugx(1, DBG_ERR, "failed to add server");
3553 if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
3554 (void *)(srvconf->servers)))
3555 debugx(1, DBG_ERR, "pthread_create failed");
3557 /* srcprotores for UDP no longer needed */
3558 if (srcprotores[RAD_UDP]) {
3559 freeaddrinfo(srcprotores[RAD_UDP]);
3560 srcprotores[RAD_UDP] = NULL;
3563 for (i = 0; protodefs[i].name; i++)
3564 if (protodefs[i].initextra)
3565 protodefs[i].initextra();
3567 if (find_clconf_type(RAD_TCP, NULL))
3568 createlisteners(RAD_TCP, options.listentcp);
3570 if (find_clconf_type(RAD_TLS, NULL))
3571 createlisteners(RAD_TLS, options.listentls);
3573 if (find_clconf_type(RAD_DTLS, NULL))
3574 createlisteners(RAD_DTLS, options.listendtls);
3576 if (find_clconf_type(RAD_UDP, NULL)) {
3577 createlisteners(RAD_UDP, options.listenudp);
3578 if (options.listenaccudp)
3579 createlisteners(RAD_UDP, options.listenaccudp);
3582 /* just hang around doing nothing, anything to do here? */