2 * Copyright (C) 2006-2008 Stig Venaas <venaas@uninett.no>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
9 /* For UDP there is one server instance consisting of udpserverrd and udpserverth
10 * rd is responsible for init and launching wr
11 * For TLS there is a server instance that launches tlsserverrd for each TLS peer
12 * each tlsserverrd launches tlsserverwr
13 * For each UDP/TLS peer there is clientrd and clientwr, clientwr is responsible
14 * for init and launching rd
16 * serverrd will receive a request, processes it and puts it in the requestq of
17 * the appropriate clientwr
18 * clientwr monitors its requestq and sends requests
19 * clientrd looks for responses, processes them and puts them in the replyq of
20 * the peer the request came from
21 * serverwr monitors its reply and sends replies
23 * In addition to the main thread, we have:
24 * If UDP peers are configured, there will be 2 + 2 * #peers UDP threads
25 * If TLS peers are configured, there will initially be 2 * #peers TLS threads
26 * For each TLS peer connecting to us there will be 2 more TLS threads
27 * This is only for connected peers
28 * Example: With 3 UDP peer and 30 TLS peers, there will be a max of
29 * 1 + (2 + 2 * 3) + (2 * 30) + (2 * 30) = 129 threads
33 * TCP accounting not yet supported
34 * We are not removing client requests from dynamic servers, see removeclientrqs()
35 * Need to remove UDP clients when no activity for a while...
36 * Remove expired stuff from clients request list?
40 #include <sys/socket.h>
41 #include <netinet/in.h>
50 #include <sys/types.h>
51 #include <sys/select.h>
54 #include <arpa/inet.h>
58 #include <openssl/ssl.h>
59 #include <openssl/rand.h>
60 #include <openssl/err.h>
61 #include <openssl/md5.h>
62 #include <openssl/hmac.h>
63 #include <openssl/x509v3.h>
69 #include "radsecproxy.h"
75 static struct options options;
76 static struct list *clconfs, *srvconfs;
78 struct hash *tlsconfs, *rewriteconfs;
80 static struct addrinfo *srcprotores[4] = { NULL, NULL, NULL, NULL };
82 static pthread_mutex_t *ssl_locks = NULL;
83 static long *ssl_lock_count;
87 /* minimum required declarations to avoid reordering code */
88 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id);
89 int dynamicconfig(struct server *server);
90 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
91 void freerealm(struct realm *realm);
92 void freeclsrvconf(struct clsrvconf *conf);
93 void freerq(struct request *rq);
94 void freerqoutdata(struct rqout *rqout);
95 void rmclientrq(struct request *rq, uint8_t id);
97 static const struct protodefs protodefs[] = {
98 { "udp", /* UDP, assuming RAD_UDP defined as 0 */
99 NULL, /* secretdefault */
100 SOCK_DGRAM, /* socktype */
101 "1812", /* portdefault */
102 REQUEST_RETRY_COUNT, /* retrycountdefault */
103 10, /* retrycountmax */
104 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
105 60, /* retryintervalmax */
106 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
107 udpserverrd, /* listener */
108 &options.sourceudp, /* srcaddrport */
109 NULL, /* connecter */
110 NULL, /* clientconnreader */
111 clientradputudp, /* clientradput */
112 addclientudp, /* addclient */
113 addserverextraudp, /* addserverextra */
114 initextraudp /* initextra */
116 { "tls", /* TLS, assuming RAD_TLS defined as 1 */
117 "mysecret", /* secretdefault */
118 SOCK_STREAM, /* socktype */
119 "2083", /* portdefault */
120 0, /* retrycountdefault */
121 0, /* retrycountmax */
122 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
123 60, /* retryintervalmax */
124 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
125 tlslistener, /* listener */
126 &options.sourcetls, /* srcaddrport */
127 tlsconnect, /* connecter */
128 tlsclientrd, /* clientconnreader */
129 clientradputtls, /* clientradput */
130 NULL, /* addclient */
131 NULL, /* addserverextra */
134 { "tcp", /* TCP, assuming RAD_TCP defined as 2 */
135 NULL, /* secretdefault */
136 SOCK_STREAM, /* socktype */
137 "1812", /* portdefault */
138 0, /* retrycountdefault */
139 0, /* retrycountmax */
140 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
141 60, /* retryintervalmax */
142 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
143 tcplistener, /* listener */
144 &options.sourcetcp, /* srcaddrport */
145 tcpconnect, /* connecter */
146 tcpclientrd, /* clientconnreader */
147 clientradputtcp, /* clientradput */
148 NULL, /* addclient */
149 NULL, /* addserverextra */
152 { "dtls", /* DTLS, assuming RAD_DTLS defined as 3 */
153 "mysecret", /* secretdefault */
154 SOCK_DGRAM, /* socktype */
155 "2083", /* portdefault */
156 REQUEST_RETRY_COUNT, /* retrycountdefault */
157 10, /* retrycountmax */
158 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
159 60, /* retryintervalmax */
160 DUPLICATE_INTERVAL, /* duplicateintervaldefault */
161 udpdtlsserverrd, /* listener */
162 &options.sourcedtls, /* srcaddrport */
163 dtlsconnect, /* connecter */
164 dtlsclientrd, /* clientconnreader */
165 clientradputdtls, /* clientradput */
166 NULL, /* addclient */
167 addserverextradtls, /* addserverextra */
168 initextradtls /* initextra */
174 uint8_t protoname2int(const char *name) {
177 for (i = 0; protodefs[i].name && strcasecmp(protodefs[i].name, name); i++);
181 /* callbacks for making OpenSSL thread safe */
182 unsigned long ssl_thread_id() {
183 return (unsigned long)pthread_self();
186 void ssl_locking_callback(int mode, int type, const char *file, int line) {
187 if (mode & CRYPTO_LOCK) {
188 pthread_mutex_lock(&ssl_locks[type]);
189 ssl_lock_count[type]++;
191 pthread_mutex_unlock(&ssl_locks[type]);
194 static int pem_passwd_cb(char *buf, int size, int rwflag, void *userdata) {
195 int pwdlen = strlen(userdata);
196 if (rwflag != 0 || pwdlen > size) /* not for decryption or too large */
198 memcpy(buf, userdata, pwdlen);
202 static int verify_cb(int ok, X509_STORE_CTX *ctx) {
207 err_cert = X509_STORE_CTX_get_current_cert(ctx);
208 err = X509_STORE_CTX_get_error(ctx);
209 depth = X509_STORE_CTX_get_error_depth(ctx);
211 if (depth > MAX_CERT_DEPTH) {
213 err = X509_V_ERR_CERT_CHAIN_TOO_LONG;
214 X509_STORE_CTX_set_error(ctx, err);
218 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
219 debug(DBG_WARN, "verify error: num=%d:%s:depth=%d:%s", err, X509_verify_cert_error_string(err), depth, buf);
222 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
223 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf, 256);
224 debug(DBG_WARN, "\tIssuer=%s", buf);
226 case X509_V_ERR_CERT_NOT_YET_VALID:
227 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
228 debug(DBG_WARN, "\tCertificate not yet valid");
230 case X509_V_ERR_CERT_HAS_EXPIRED:
231 debug(DBG_WARN, "Certificate has expired");
233 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
234 debug(DBG_WARN, "Certificate no longer valid (after notAfter)");
239 printf("certificate verify returns %d\n", ok);
244 struct addrinfo *getsrcprotores(uint8_t type) {
245 return srcprotores[type];
248 int resolvepeer(struct clsrvconf *conf, int ai_flags) {
249 struct addrinfo hints, *addrinfo, *res;
253 slash = conf->host ? strchr(conf->host, '/') : NULL;
257 debug(DBG_WARN, "resolvepeer: prefix length must be specified after the / in %s", conf->host);
261 if (*s < '0' || *s > '9') {
262 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
265 plen = atoi(slash + 1);
266 if (plen < 0 || plen > 128) {
267 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
272 memset(&hints, 0, sizeof(hints));
273 hints.ai_socktype = conf->pdef->socktype;
274 hints.ai_family = AF_UNSPEC;
275 hints.ai_flags = ai_flags;
276 if (!conf->host && !conf->port) {
277 /* getaddrinfo() doesn't like host and port to be NULL */
278 if (getaddrinfo(conf->host, conf->pdef->portdefault, &hints, &addrinfo)) {
279 debug(DBG_WARN, "resolvepeer: can't resolve (null) port (null)");
282 for (res = addrinfo; res; res = res->ai_next) {
283 switch (res->ai_family) {
285 ((struct sockaddr_in *)res->ai_addr)->sin_port = 0;
288 ((struct sockaddr_in6 *)res->ai_addr)->sin6_port = 0;
294 hints.ai_flags |= AI_NUMERICHOST;
295 if (getaddrinfo(conf->host, conf->port, &hints, &addrinfo)) {
296 debug(DBG_WARN, "resolvepeer: can't resolve %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
301 switch (addrinfo->ai_family) {
304 debug(DBG_WARN, "resolvepeer: prefix length must be <= 32 in %s", conf->host);
305 freeaddrinfo(addrinfo);
312 debug(DBG_WARN, "resolvepeer: prefix must be IPv4 or IPv6 in %s", conf->host);
313 freeaddrinfo(addrinfo);
316 conf->prefixlen = plen;
318 conf->prefixlen = 255;
321 freeaddrinfo(conf->addrinfo);
322 conf->addrinfo = addrinfo;
326 char *parsehostport(char *s, struct clsrvconf *conf, char *default_port) {
331 /* allow literal addresses and port, e.g. [2001:db8::1]:1812 */
335 for (; *p && *p != ']' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
337 debugx(1, DBG_ERR, "no ] matching initial [");
341 for (; *p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
344 debugx(1, DBG_ERR, "missing host/address");
346 conf->host = stringcopy(field, p - field);
349 if (*p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n')
350 debugx(1, DBG_ERR, "unexpected character after ]");
353 /* port number or service name is specified */;
355 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
357 debugx(1, DBG_ERR, "syntax error, : but no following port");
358 conf->port = stringcopy(field, p - field);
360 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
364 struct clsrvconf *resolve_hostport(uint8_t type, char *lconf, char *default_port) {
365 struct clsrvconf *conf;
367 conf = malloc(sizeof(struct clsrvconf));
369 debugx(1, DBG_ERR, "malloc failed");
370 memset(conf, 0, sizeof(struct clsrvconf));
372 conf->pdef = &protodefs[conf->type];
374 parsehostport(lconf, conf, default_port);
375 if (!strcmp(conf->host, "*")) {
380 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
381 if (!resolvepeer(conf, AI_PASSIVE))
382 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
386 void freeclsrvres(struct clsrvconf *res) {
390 freeaddrinfo(res->addrinfo);
394 int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
396 struct addrinfo *res;
398 for (res = addrinfo; res; res = res->ai_next) {
399 if (family != AF_UNSPEC && family != res->ai_family)
401 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
403 debug(DBG_WARN, "bindtoaddr: socket failed");
407 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
410 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
412 if (!bind(s, res->ai_addr, res->ai_addrlen))
414 debug(DBG_WARN, "bindtoaddr: bind failed");
420 int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src) {
422 struct addrinfo *res;
425 for (res = addrinfo; res; res = res->ai_next) {
426 s = bindtoaddr(src, res->ai_family, 1, 1);
428 debug(DBG_WARN, "connecttoserver: socket failed");
431 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
433 debug(DBG_WARN, "connecttoserver: connect failed");
440 /* returns 1 if the len first bits are equal, else 0 */
441 int prefixmatch(void *a1, void *a2, uint8_t len) {
442 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
444 if (l && memcmp(a1, a2, l))
449 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
452 /* returns next config with matching address, or NULL */
453 struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur) {
454 struct sockaddr_in6 *sa6 = NULL;
455 struct in_addr *a4 = NULL;
456 struct addrinfo *res;
457 struct list_node *entry;
458 struct clsrvconf *conf;
460 if (addr->sa_family == AF_INET6) {
461 sa6 = (struct sockaddr_in6 *)addr;
462 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
463 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
467 a4 = &((struct sockaddr_in *)addr)->sin_addr;
469 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
470 conf = (struct clsrvconf *)entry->data;
471 if (conf->type == type) {
472 if (conf->prefixlen == 255) {
473 for (res = conf->addrinfo; res; res = res->ai_next)
474 if ((a4 && res->ai_family == AF_INET &&
475 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
476 (sa6 && res->ai_family == AF_INET6 &&
477 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16))) {
483 res = conf->addrinfo;
485 ((a4 && res->ai_family == AF_INET &&
486 prefixmatch(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, conf->prefixlen)) ||
487 (sa6 && res->ai_family == AF_INET6 &&
488 prefixmatch(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, conf->prefixlen)))) {
499 struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
500 return find_conf(type, addr, clconfs, cur);
503 struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
504 return find_conf(type, addr, srvconfs, cur);
507 /* returns next config of given type, or NULL */
508 struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
509 struct list_node *entry;
510 struct clsrvconf *conf;
512 for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
513 conf = (struct clsrvconf *)entry->data;
514 if (conf->type == type) {
523 struct queue *newqueue() {
526 q = malloc(sizeof(struct queue));
528 debugx(1, DBG_ERR, "malloc failed");
529 q->entries = list_create();
531 debugx(1, DBG_ERR, "malloc failed");
532 pthread_mutex_init(&q->mutex, NULL);
533 pthread_cond_init(&q->cond, NULL);
537 void removequeue(struct queue *q) {
538 struct list_node *entry;
542 pthread_mutex_lock(&q->mutex);
543 for (entry = list_first(q->entries); entry; entry = list_next(entry))
544 free(((struct reply *)entry)->buf);
545 list_destroy(q->entries);
546 pthread_cond_destroy(&q->cond);
547 pthread_mutex_unlock(&q->mutex);
548 pthread_mutex_destroy(&q->mutex);
552 void freebios(struct queue *q) {
555 pthread_mutex_lock(&q->mutex);
556 while ((bio = (BIO *)list_shift(q->entries)))
558 pthread_mutex_unlock(&q->mutex);
562 struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
563 struct client *new = malloc(sizeof(struct client));
566 debug(DBG_ERR, "malloc failed");
571 pthread_mutex_lock(conf->lock);
572 if (!conf->clients) {
573 conf->clients = list_create();
574 if (!conf->clients) {
576 pthread_mutex_unlock(conf->lock);
577 debug(DBG_ERR, "malloc failed");
582 memset(new, 0, sizeof(struct client));
583 pthread_mutex_init(&new->lock, NULL);
585 if (conf->pdef->addclient)
586 conf->pdef->addclient(new);
588 new->replyq = newqueue();
589 list_push(conf->clients, new);
591 pthread_mutex_unlock(conf->lock);
595 void removeclient(struct client *client) {
599 pthread_mutex_lock(client->conf->lock);
600 if (client->conf->clients) {
601 pthread_mutex_lock(&client->lock);
602 removequeue(client->replyq);
603 list_removedata(client->conf->clients, client);
604 pthread_mutex_unlock(&client->lock);
605 pthread_mutex_destroy(&client->lock);
609 pthread_mutex_unlock(client->conf->lock);
612 void removeclientrqs(struct client *client) {
613 struct list_node *entry;
614 struct server *server;
618 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
619 server = ((struct clsrvconf *)entry->data)->servers;
622 for (i = 0; i < MAX_REQUESTS; i++) {
623 rqout = server->requests + i;
624 pthread_mutex_lock(rqout->lock);
625 if (rqout->rq && rqout->rq->from == client)
626 freerqoutdata(rqout);
627 pthread_mutex_unlock(rqout->lock);
632 void freeserver(struct server *server, uint8_t destroymutex) {
633 struct rqout *rqout, *end;
638 if (server->requests) {
639 rqout = server->requests;
640 for (end = rqout + MAX_REQUESTS; rqout < end; rqout++) {
641 freerqoutdata(rqout);
642 pthread_mutex_destroy(rqout->lock);
645 free(server->requests);
648 freebios(server->rbios);
649 free(server->dynamiclookuparg);
651 SSL_free(server->ssl);
653 pthread_mutex_destroy(&server->lock);
654 pthread_cond_destroy(&server->newrq_cond);
655 pthread_mutex_destroy(&server->newrq_mutex);
660 int addserver(struct clsrvconf *conf) {
661 struct clsrvconf *res;
666 debug(DBG_ERR, "addserver: currently works with just one server per conf");
669 conf->servers = malloc(sizeof(struct server));
670 if (!conf->servers) {
671 debug(DBG_ERR, "malloc failed");
674 memset(conf->servers, 0, sizeof(struct server));
675 conf->servers->conf = conf;
678 if (type == RAD_DTLS)
679 conf->servers->rbios = newqueue();
681 if (!srcprotores[type]) {
682 res = resolve_hostport(type, *conf->pdef->srcaddrport, NULL);
683 srcprotores[type] = res->addrinfo;
684 res->addrinfo = NULL;
688 conf->servers->sock = -1;
689 if (conf->pdef->addserverextra)
690 conf->pdef->addserverextra(conf);
692 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct rqout));
693 if (!conf->servers->requests) {
694 debug(DBG_ERR, "malloc failed");
697 for (i = 0; i < MAX_REQUESTS; i++) {
698 conf->servers->requests[i].lock = malloc(sizeof(pthread_mutex_t));
699 if (!conf->servers->requests[i].lock) {
700 debug(DBG_ERR, "malloc failed");
703 if (pthread_mutex_init(conf->servers->requests[i].lock, NULL)) {
704 debug(DBG_ERR, "mutex init failed");
705 free(conf->servers->requests[i].lock);
706 conf->servers->requests[i].lock = NULL;
710 if (pthread_mutex_init(&conf->servers->lock, NULL)) {
711 debug(DBG_ERR, "mutex init failed");
714 conf->servers->newrq = 0;
715 if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
716 debug(DBG_ERR, "mutex init failed");
717 pthread_mutex_destroy(&conf->servers->lock);
720 if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
721 debug(DBG_ERR, "mutex init failed");
722 pthread_mutex_destroy(&conf->servers->newrq_mutex);
723 pthread_mutex_destroy(&conf->servers->lock);
730 freeserver(conf->servers, 0);
731 conf->servers = NULL;
735 int subjectaltnameaddr(X509 *cert, int family, struct in6_addr *addr) {
736 int loc, i, l, n, r = 0;
739 STACK_OF(GENERAL_NAME) *alt;
742 debug(DBG_DBG, "subjectaltnameaddr");
744 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
748 ex = X509_get_ext(cert, loc);
749 alt = X509V3_EXT_d2i(ex);
753 n = sk_GENERAL_NAME_num(alt);
754 for (i = 0; i < n; i++) {
755 gn = sk_GENERAL_NAME_value(alt, i);
756 if (gn->type != GEN_IPADD)
759 v = (char *)ASN1_STRING_data(gn->d.ia5);
760 l = ASN1_STRING_length(gn->d.ia5);
761 if (((family == AF_INET && l == sizeof(struct in_addr)) || (family == AF_INET6 && l == sizeof(struct in6_addr)))
762 && !memcmp(v, &addr, l)) {
767 GENERAL_NAMES_free(alt);
771 int cnregexp(X509 *cert, char *exact, regex_t *regex) {
778 nm = X509_get_subject_name(cert);
781 loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
784 e = X509_NAME_get_entry(nm, loc);
785 t = X509_NAME_ENTRY_get_data(e);
786 v = (char *) ASN1_STRING_data(t);
787 l = ASN1_STRING_length(t);
791 if (l == strlen(exact) && !strncasecmp(exact, v, l))
794 s = stringcopy((char *)v, l);
796 debug(DBG_ERR, "malloc failed");
799 if (regexec(regex, s, 0, NULL, 0)) {
810 int subjectaltnameregexp(X509 *cert, int type, char *exact, regex_t *regex) {
811 int loc, i, l, n, r = 0;
814 STACK_OF(GENERAL_NAME) *alt;
817 debug(DBG_DBG, "subjectaltnameregexp");
819 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
823 ex = X509_get_ext(cert, loc);
824 alt = X509V3_EXT_d2i(ex);
828 n = sk_GENERAL_NAME_num(alt);
829 for (i = 0; i < n; i++) {
830 gn = sk_GENERAL_NAME_value(alt, i);
831 if (gn->type != type)
834 v = (char *)ASN1_STRING_data(gn->d.ia5);
835 l = ASN1_STRING_length(gn->d.ia5);
839 printfchars(NULL, gn->type == GEN_DNS ? "dns" : "uri", NULL, v, l);
842 if (memcmp(v, exact, l))
845 s = stringcopy((char *)v, l);
847 debug(DBG_ERR, "malloc failed");
850 if (regexec(regex, s, 0, NULL, 0)) {
859 GENERAL_NAMES_free(alt);
863 X509 *verifytlscert(SSL *ssl) {
867 if (SSL_get_verify_result(ssl) != X509_V_OK) {
868 debug(DBG_ERR, "verifytlscert: basic validation failed");
869 while ((error = ERR_get_error()))
870 debug(DBG_ERR, "verifytlscert: TLS: %s", ERR_error_string(error, NULL));
874 cert = SSL_get_peer_certificate(ssl);
876 debug(DBG_ERR, "verifytlscert: failed to obtain certificate");
880 int verifyconfcert(X509 *cert, struct clsrvconf *conf) {
882 uint8_t type = 0; /* 0 for DNS, AF_INET for IPv4, AF_INET6 for IPv6 */
883 struct in6_addr addr;
885 if (conf->certnamecheck && conf->prefixlen == 255) {
886 if (inet_pton(AF_INET, conf->host, &addr))
888 else if (inet_pton(AF_INET6, conf->host, &addr))
891 r = type ? subjectaltnameaddr(cert, type, &addr) : subjectaltnameregexp(cert, GEN_DNS, conf->host, NULL);
894 debug(DBG_WARN, "verifyconfcert: No subjectaltname matching %s %s", type ? "address" : "host", conf->host);
897 debug(DBG_DBG, "verifyconfcert: Found subjectaltname matching %s %s", type ? "address" : "host", conf->host);
899 if (!cnregexp(cert, conf->host, NULL)) {
900 debug(DBG_WARN, "verifyconfcert: cn not matching host %s", conf->host);
903 debug(DBG_DBG, "verifyconfcert: Found cn matching host %s", conf->host);
906 if (conf->certcnregex) {
907 if (cnregexp(cert, NULL, conf->certcnregex) < 1) {
908 debug(DBG_WARN, "verifyconfcert: CN not matching regex");
911 debug(DBG_DBG, "verifyconfcert: CN matching regex");
913 if (conf->certuriregex) {
914 if (subjectaltnameregexp(cert, GEN_URI, NULL, conf->certuriregex) < 1) {
915 debug(DBG_WARN, "verifyconfcert: subjectaltname URI not matching regex");
918 debug(DBG_DBG, "verifyconfcert: subjectaltname URI matching regex");
923 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
925 if (ATTRTYPE(attrs) == type)
927 length -= ATTRLEN(attrs);
928 attrs += ATTRLEN(attrs);
933 void freerq(struct request *rq) {
936 debug(DBG_DBG, "freerq: called with refcount %d", rq->refcount);
939 if (rq->origusername)
940 free(rq->origusername);
944 radmsg_free(rq->msg);
950 void freerqoutdata(struct rqout *rqout) {
958 memset(&rqout->expiry, 0, sizeof(struct timeval));
961 void sendrq(struct server *to, struct request *rq) {
964 pthread_mutex_lock(&to->newrq_mutex);
965 /* might simplify if only try nextid, might be ok */
966 for (i = to->nextid; i < MAX_REQUESTS; i++) {
967 if (!to->requests[i].rq) {
968 pthread_mutex_lock(to->requests[i].lock);
969 if (!to->requests[i].rq)
971 pthread_mutex_unlock(to->requests[i].lock);
974 if (i == MAX_REQUESTS) {
975 for (i = 0; i < to->nextid; i++) {
976 if (!to->requests[i].rq) {
977 pthread_mutex_lock(to->requests[i].lock);
978 if (!to->requests[i].rq)
980 pthread_mutex_unlock(to->requests[i].lock);
983 if (i == to->nextid) {
984 debug(DBG_WARN, "sendrq: no room in queue, dropping request");
985 rmclientrq(rq, rq->msg->id);
991 rq->msg->id = (uint8_t)i;
992 rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
994 pthread_mutex_unlock(to->requests[i].lock);
995 debug(DBG_ERR, "sendrq: radmsg2buf failed");
996 rmclientrq(rq, rq->msg->id);
1001 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->host);
1002 to->requests[i].rq = rq;
1003 pthread_mutex_unlock(to->requests[i].lock);
1008 debug(DBG_DBG, "sendrq: signalling client writer");
1009 pthread_cond_signal(&to->newrq_cond);
1013 pthread_mutex_unlock(&to->newrq_mutex);
1016 void sendreply(struct client *to, struct radmsg *msg, struct sockaddr_storage *tosa, int toudpsock) {
1018 struct reply *reply;
1021 buf = radmsg2buf(msg, (uint8_t *)to->conf->secret);
1024 debug(DBG_ERR, "sendreply: radmsg2buf failed");
1028 reply = malloc(sizeof(struct reply));
1031 debug(DBG_ERR, "sendreply: malloc failed");
1034 memset(reply, 0, sizeof(struct reply));
1037 reply->tosa = *tosa;
1038 reply->toudpsock = toudpsock;
1040 pthread_mutex_lock(&to->replyq->mutex);
1042 first = list_first(to->replyq->entries) == NULL;
1044 if (!list_push(to->replyq->entries, reply)) {
1045 pthread_mutex_unlock(&to->replyq->mutex);
1048 debug(DBG_ERR, "sendreply: malloc failed");
1053 debug(DBG_DBG, "signalling server writer");
1054 pthread_cond_signal(&to->replyq->cond);
1056 pthread_mutex_unlock(&to->replyq->mutex);
1059 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1060 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1061 static unsigned char first = 1;
1062 static EVP_MD_CTX mdctx;
1063 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1064 unsigned int md_len;
1065 uint8_t i, offset = 0, out[128];
1067 pthread_mutex_lock(&lock);
1069 EVP_MD_CTX_init(&mdctx);
1075 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1076 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1077 !EVP_DigestUpdate(&mdctx, input, 16) ||
1078 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1080 pthread_mutex_unlock(&lock);
1083 for (i = 0; i < 16; i++)
1084 out[offset + i] = hash[i] ^ in[offset + i];
1085 input = out + offset - 16;
1090 memcpy(in, out, len);
1091 pthread_mutex_unlock(&lock);
1095 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1096 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1097 static unsigned char first = 1;
1098 static EVP_MD_CTX mdctx;
1099 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1100 unsigned int md_len;
1101 uint8_t i, offset = 0, out[128];
1103 pthread_mutex_lock(&lock);
1105 EVP_MD_CTX_init(&mdctx);
1111 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1112 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1113 !EVP_DigestUpdate(&mdctx, input, 16) ||
1114 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1116 pthread_mutex_unlock(&lock);
1119 for (i = 0; i < 16; i++)
1120 out[offset + i] = hash[i] ^ in[offset + i];
1121 input = in + offset;
1126 memcpy(in, out, len);
1127 pthread_mutex_unlock(&lock);
1131 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1132 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1133 static unsigned char first = 1;
1134 static EVP_MD_CTX mdctx;
1135 unsigned char hash[EVP_MAX_MD_SIZE];
1136 unsigned int md_len;
1139 pthread_mutex_lock(&lock);
1141 EVP_MD_CTX_init(&mdctx);
1146 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
1147 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
1148 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
1151 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1152 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1153 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1154 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1155 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1156 pthread_mutex_unlock(&lock);
1161 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1164 for (i = 0; i < 16; i++)
1167 for (offset = 16; offset < len; offset += 16) {
1169 printf("text + offset - 16 c(%d): ", offset / 16);
1170 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1172 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1173 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1174 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1175 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1177 pthread_mutex_unlock(&lock);
1181 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1184 for (i = 0; i < 16; i++)
1185 text[offset + i] ^= hash[i];
1189 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
1192 pthread_mutex_unlock(&lock);
1196 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1197 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1198 static unsigned char first = 1;
1199 static EVP_MD_CTX mdctx;
1200 unsigned char hash[EVP_MAX_MD_SIZE];
1201 unsigned int md_len;
1205 pthread_mutex_lock(&lock);
1207 EVP_MD_CTX_init(&mdctx);
1212 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
1213 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
1214 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
1217 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1218 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1219 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1220 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1221 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1222 pthread_mutex_unlock(&lock);
1227 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1230 for (i = 0; i < 16; i++)
1231 plain[i] = text[i] ^ hash[i];
1233 for (offset = 16; offset < len; offset += 16) {
1235 printf("text + offset - 16 c(%d): ", offset / 16);
1236 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1238 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1239 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1240 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1241 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1243 pthread_mutex_unlock(&lock);
1247 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1250 for (i = 0; i < 16; i++)
1251 plain[offset + i] = text[offset + i] ^ hash[i];
1254 memcpy(text, plain, len);
1256 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
1259 pthread_mutex_unlock(&lock);
1263 struct realm *id2realm(struct list *realmlist, char *id) {
1264 struct list_node *entry;
1265 struct realm *realm, *subrealm = NULL;
1267 /* need to do locking for subrealms and check subrealm timers */
1268 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1269 realm = (struct realm *)entry->data;
1270 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
1271 pthread_mutex_lock(&realm->subrealms_mutex);
1272 if (realm->subrealms)
1273 subrealm = id2realm(realm->subrealms, id);
1274 pthread_mutex_unlock(&realm->subrealms_mutex);
1275 return subrealm ? subrealm : realm;
1281 /* helper function, only used by removeserversubrealms() */
1282 void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1283 struct list_node *entry;
1284 struct realm *realm;
1286 for (entry = list_first(realmlist); entry;) {
1287 realm = (struct realm *)entry->data;
1288 entry = list_next(entry);
1289 if (realm->srvconfs) {
1290 list_removedata(realm->srvconfs, srv);
1291 if (!list_first(realm->srvconfs)) {
1292 list_destroy(realm->srvconfs);
1293 realm->srvconfs = NULL;
1296 if (realm->accsrvconfs) {
1297 list_removedata(realm->accsrvconfs, srv);
1298 if (!list_first(realm->accsrvconfs)) {
1299 list_destroy(realm->accsrvconfs);
1300 realm->accsrvconfs = NULL;
1304 /* remove subrealm if no servers */
1305 if (!realm->srvconfs && !realm->accsrvconfs) {
1306 list_removedata(realmlist, realm);
1312 void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1313 struct list_node *entry;
1314 struct realm *realm;
1316 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1317 realm = (struct realm *)entry->data;
1318 pthread_mutex_lock(&realm->subrealms_mutex);
1319 if (realm->subrealms) {
1320 _internal_removeserversubrealms(realm->subrealms, srv);
1321 if (!list_first(realm->subrealms)) {
1322 list_destroy(realm->subrealms);
1323 realm->subrealms = NULL;
1326 pthread_mutex_unlock(&realm->subrealms_mutex);
1330 int attrvalidate(unsigned char *attrs, int length) {
1331 while (length > 1) {
1332 if (ATTRLEN(attrs) < 2) {
1333 debug(DBG_WARN, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
1336 length -= ATTRLEN(attrs);
1338 debug(DBG_WARN, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
1341 attrs += ATTRLEN(attrs);
1344 debug(DBG_WARN, "attrvalidate: malformed packet? remaining byte after last attribute");
1348 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1349 if (len < 16 || len > 128 || len % 16) {
1350 debug(DBG_WARN, "pwdrecrypt: invalid password length");
1354 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
1355 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
1359 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
1361 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
1362 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
1368 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, unsigned char *oldauth, char *newauth) {
1371 if (!msmppdecrypt(msmpp + 2, len - 2, (unsigned char *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
1372 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
1375 if (!msmppencrypt(msmpp + 2, len - 2, (unsigned char *)newsecret, strlen(newsecret), (unsigned char *)newauth, msmpp)) {
1376 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
1382 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
1383 char *oldsecret, char *newsecret) {
1384 unsigned char *attr;
1386 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
1387 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
1388 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->origauth))
1394 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint8_t subattr) {
1398 for (; attrs[0]; attrs += 2)
1399 if (attrs[0] == vendor && attrs[1] == subattr)
1404 /* returns 1 if entire element is to be removed, else 0 */
1405 int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
1406 uint8_t alen, sublen;
1410 if (!removevendorattrs)
1413 memcpy(&vendor, attr->v, 4);
1414 vendor = ntohl(vendor);
1415 while (*removevendorattrs && *removevendorattrs != vendor)
1416 removevendorattrs += 2;
1417 if (!*removevendorattrs)
1420 if (findvendorsubattr(removevendorattrs, vendor, -1))
1421 return 1; /* remove entire vendor attribute */
1423 sublen = attr->l - 4;
1424 subattrs = attr->v + 4;
1426 if (!attrvalidate(subattrs, sublen)) {
1427 debug(DBG_WARN, "dovendorrewrite: vendor attribute validation failed, no rewrite");
1431 while (sublen > 1) {
1432 alen = ATTRLEN(subattrs);
1434 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
1435 memmove(subattrs, subattrs + alen, sublen);
1443 void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
1444 struct list_node *n, *p;
1448 n = list_first(msg->attrs);
1450 attr = (struct tlv *)n->data;
1451 if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
1452 (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
1453 list_removedata(msg->attrs, attr);
1455 n = p ? list_next(p) : list_first(msg->attrs);
1462 int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
1463 struct list_node *n;
1466 for (n = list_first(addattrs); n; n = list_next(n)) {
1467 a = copytlv((struct tlv *)n->data);
1470 if (!radmsg_add(msg, a)) {
1478 int resizeattr(struct tlv *attr, uint8_t newlen) {
1481 if (newlen != attr->l) {
1482 newv = realloc(attr->v, newlen);
1491 int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
1492 size_t nmatch = 10, reslen = 0, start = 0;
1493 regmatch_t pmatch[10], *pfield;
1497 in = stringcopy((char *)attr->v, attr->l);
1501 if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
1506 out = modattr->replacement;
1508 for (i = start; out[i]; i++) {
1509 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1510 pfield = &pmatch[out[i + 1] - '0'];
1511 if (pfield->rm_so >= 0) {
1512 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1518 reslen += i - start;
1520 debug(DBG_WARN, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
1525 if (!resizeattr(attr, reslen)) {
1532 for (i = start; out[i]; i++) {
1533 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1534 pfield = &pmatch[out[i + 1] - '0'];
1535 if (pfield->rm_so >= 0) {
1536 memcpy(attr->v + reslen, out + start, i - start);
1537 reslen += i - start;
1538 memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1539 reslen += pfield->rm_eo - pfield->rm_so;
1546 memcpy(attr->v + reslen, out + start, i - start);
1550 int dorewritemod(struct radmsg *msg, struct list *modattrs) {
1551 struct list_node *n, *m;
1553 for (n = list_first(msg->attrs); n; n = list_next(n))
1554 for (m = list_first(modattrs); m; m = list_next(m))
1555 if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
1556 !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
1561 int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
1564 if (rewrite->removeattrs || rewrite->removevendorattrs)
1565 dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
1566 if (rewrite->addattrs && !dorewriteadd(msg, rewrite->addattrs))
1568 if (rewrite->modattrs && !dorewritemod(msg, rewrite->modattrs))
1573 int rewriteusername(struct request *rq, struct tlv *attr) {
1574 char *orig = (char *)tlv2str(attr);
1575 if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
1579 if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
1580 rq->origusername = (char *)orig;
1586 const char *radmsgtype2string(uint8_t code) {
1587 static const char *rad_msg_names[] = {
1588 "", "Access-Request", "Access-Accept", "Access-Reject",
1589 "Accounting-Request", "Accounting-Response", "", "",
1590 "", "", "", "Access-Challenge",
1591 "Status-Server", "Status-Client"
1593 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1596 void char2hex(char *h, unsigned char c) {
1597 static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
1598 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
1599 h[0] = hexdigits[c / 16];
1600 h[1] = hexdigits[c % 16];
1604 uint8_t *radattr2ascii(struct tlv *attr) {
1612 for (i = 0; i < attr->l; i++)
1613 if (attr->v[i] < 32 || attr->v[i] > 126)
1616 return (uint8_t *)stringcopy((char *)attr->v, attr->l);
1623 for (i = 0; i < attr->l; i++)
1624 if (attr->v[i] < 32 || attr->v[i] > 126) {
1626 char2hex((char *)d, attr->v[i]);
1634 void acclog(struct radmsg *msg, char *host) {
1638 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1640 debug(DBG_INFO, "acclog: accounting-request from %s without username attribute", host);
1643 username = radattr2ascii(attr);
1645 debug(DBG_INFO, "acclog: accounting-request from %s with username: %s", host, username);
1650 void respondaccounting(struct request *rq) {
1653 msg = radmsg_init(RAD_Accounting_Response, rq->msg->id, rq->msg->auth);
1655 debug(DBG_DBG, "respondaccounting: responding to %s", rq->from->conf->host);
1656 sendreply(rq->from, msg, &rq->fromsa, rq->fromudpsock);
1658 debug(DBG_ERR, "respondaccounting: malloc failed");
1661 void respondstatusserver(struct request *rq) {
1664 msg = radmsg_init(RAD_Access_Accept, rq->msg->id, rq->msg->auth);
1666 debug(DBG_DBG, "respondstatusserver: responding to %s", rq->from->conf->host);
1667 sendreply(rq->from, msg, &rq->fromsa, rq->fromudpsock);
1669 debug(DBG_ERR, "respondstatusserver: malloc failed");
1672 void respondreject(struct request *rq, char *message) {
1676 msg = radmsg_init(RAD_Access_Reject, rq->msg->id, rq->msg->auth);
1678 debug(DBG_ERR, "respondreject: malloc failed");
1681 if (message && *message) {
1682 attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
1683 if (!attr || !radmsg_add(msg, attr)) {
1686 debug(DBG_ERR, "respondreject: malloc failed");
1691 debug(DBG_DBG, "respondreject: responding to %s", rq->from->conf->host);
1692 sendreply(rq->from, msg, &rq->fromsa, rq->fromudpsock);
1695 struct clsrvconf *choosesrvconf(struct list *srvconfs) {
1696 struct list_node *entry;
1697 struct clsrvconf *server, *best = NULL, *first = NULL;
1699 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1700 server = (struct clsrvconf *)entry->data;
1701 if (!server->servers)
1705 if (!server->servers->connectionok)
1707 if (!server->servers->lostrqs)
1713 if (server->servers->lostrqs < best->servers->lostrqs)
1716 return best ? best : first;
1719 struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
1720 struct clsrvconf *srvconf;
1721 char *id = (char *)tlv2str(username);
1725 *realm = id2realm(realms, id);
1730 debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
1731 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1736 if (!acc && !srvconf->servers)
1737 adddynamicrealmserver(*realm, srvconf, id);
1739 return srvconf->servers;
1743 struct request *newrequest() {
1746 rq = malloc(sizeof(struct request));
1748 debug(DBG_ERR, "newrequest: malloc failed");
1751 memset(rq, 0, sizeof(struct request));
1753 gettimeofday(&rq->created, NULL);
1757 int addclientrq(struct request *rq, uint8_t id) {
1761 pthread_mutex_lock(&rq->from->lock);
1762 gettimeofday(&now, NULL);
1763 r = rq->from->rqs[id];
1765 if (now.tv_sec - r->created.tv_sec < r->from->conf->dupinterval) {
1766 pthread_mutex_unlock(&rq->from->lock);
1772 rq->from->rqs[id] = rq;
1773 pthread_mutex_unlock(&rq->from->lock);
1777 void rmclientrq(struct request *rq, uint8_t id) {
1780 pthread_mutex_lock(&rq->from->lock);
1781 r = rq->from->rqs[id];
1784 rq->from->rqs[id] = NULL;
1786 pthread_mutex_unlock(&rq->from->lock);
1789 /* returns 0 if validation/authentication fails, else 1 */
1790 int radsrv(struct request *rq) {
1791 struct radmsg *msg = NULL;
1793 uint8_t *userascii = NULL;
1794 unsigned char newauth[16];
1795 struct realm *realm = NULL;
1796 struct server *to = NULL;
1797 struct client *from = rq->from;
1799 msg = buf2radmsg(rq->buf, (uint8_t *)from->conf->secret, NULL);
1804 debug(DBG_WARN, "radsrv: message validation failed, ignoring packet");
1810 debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
1811 if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
1812 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1816 if (!addclientrq(rq, msg->id)) {
1817 debug(DBG_INFO, "radsrv: already got request with id %d from %s, ignoring", msg->id, from->conf->host);
1821 if (msg->code == RAD_Status_Server) {
1822 respondstatusserver(rq);
1826 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1828 if (from->conf->rewritein && !dorewrite(msg, from->conf->rewritein))
1831 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1833 if (msg->code == RAD_Accounting_Request) {
1834 acclog(msg, from->conf->host);
1835 respondaccounting(rq);
1837 debug(DBG_WARN, "radsrv: ignoring access request, no username attribute");
1841 if (from->conf->rewriteusername && !rewriteusername(rq, attr)) {
1842 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1846 userascii = radattr2ascii(attr);
1849 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
1851 to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
1853 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1858 if (realm->message && msg->code == RAD_Access_Request) {
1859 debug(DBG_INFO, "radsrv: sending reject to %s for %s", from->conf->host, userascii);
1860 respondreject(rq, realm->message);
1861 } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
1862 acclog(msg, from->conf->host);
1863 respondaccounting(rq);
1868 if (options.loopprevention && !strcmp(from->conf->name, to->conf->name)) {
1869 debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s to server %s, discarding",
1870 from->conf->name, to->conf->name);
1874 if (msg->code != RAD_Accounting_Request) {
1875 if (!RAND_bytes(newauth, 16)) {
1876 debug(DBG_WARN, "radsrv: failed to generate random auth");
1882 printfchars(NULL, "auth", "%02x ", auth, 16);
1885 attr = radmsg_gettype(msg, RAD_Attr_User_Password);
1887 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
1888 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, msg->auth, newauth))
1892 attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
1894 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
1895 if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, msg->auth, newauth))
1899 rq->origid = msg->id;
1900 memcpy(rq->origauth, msg->auth, 16);
1901 memcpy(msg->auth, newauth, 16);
1903 if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
1911 rmclientrq(rq, msg->id);
1918 void replyh(struct server *server, unsigned char *buf) {
1919 struct client *from;
1920 struct rqout *rqout;
1922 unsigned char *subattrs;
1923 uint8_t *username, *stationid;
1924 struct radmsg *msg = NULL;
1926 struct list_node *node;
1928 server->connectionok = 1;
1929 server->lostrqs = 0;
1931 rqout = server->requests + buf[1];
1932 pthread_mutex_lock(rqout->lock);
1933 if (!rqout->tries) {
1936 debug(DBG_INFO, "replyh: no outstanding request with this id, ignoring reply");
1940 msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rqout->rq->msg->auth);
1944 debug(DBG_WARN, "replyh: message validation failed, ignoring packet");
1947 if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
1948 && msg->code != RAD_Accounting_Response) {
1949 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
1952 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
1954 gettimeofday(&server->lastrcv, NULL);
1956 if (rqout->rq->msg->code == RAD_Status_Server) {
1957 freerqoutdata(rqout);
1958 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->host);
1962 gettimeofday(&server->lastreply, NULL);
1963 from = rqout->rq->from;
1965 if (server->conf->rewritein && !dorewrite(msg, from->conf->rewritein)) {
1966 debug(DBG_WARN, "replyh: rewritein failed");
1971 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1972 attr = (struct tlv *)node->data;
1973 if (attr->t != RAD_Attr_Vendor_Specific)
1977 if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
1980 sublen = attr->l - 4;
1981 subattrs = attr->v + 4;
1982 if (!attrvalidate(subattrs, sublen) ||
1983 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1984 rqout->rq, server->conf->secret, from->conf->secret) ||
1985 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1986 rqout->rq, server->conf->secret, from->conf->secret))
1990 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
1994 if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
1995 username = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_User_Name));
1997 stationid = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_Calling_Station_Id));
1999 debug(DBG_INFO, "%s for user %s stationid %s from %s",
2000 radmsgtype2string(msg->code), username, stationid, server->conf->host);
2003 debug(DBG_INFO, "%s for user %s from %s", radmsgtype2string(msg->code), username, server->conf->host);
2008 msg->id = (char)rqout->rq->origid;
2009 memcpy(msg->auth, rqout->rq->origauth, 16);
2012 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
2015 if (rqout->rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
2016 if (!resizeattr(attr, strlen(rqout->rq->origusername))) {
2017 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
2020 memcpy(attr->v, rqout->rq->origusername, strlen(rqout->rq->origusername));
2023 if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
2024 debug(DBG_WARN, "replyh: rewriteout failed");
2028 debug(DBG_INFO, "replyh: passing reply to client %s", from->conf->name);
2029 sendreply(from, msg, &rqout->rq->fromsa, rqout->rq->fromudpsock);
2030 freerqoutdata(rqout);
2031 pthread_mutex_unlock(rqout->lock);
2036 pthread_mutex_unlock(rqout->lock);
2040 struct request *createstatsrvrq() {
2047 rq->msg = radmsg_init(RAD_Status_Server, 0, NULL);
2050 attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
2053 if (!radmsg_add(rq->msg, attr)) {
2064 /* code for removing state not finished */
2065 void *clientwr(void *arg) {
2066 struct server *server = (struct server *)arg;
2067 struct rqout *rqout;
2068 pthread_t clientrdth;
2069 int i, secs, dynconffail = 0;
2071 struct timeval now, laststatsrv;
2072 struct timespec timeout;
2073 struct request *statsrvrq;
2074 struct clsrvconf *conf;
2076 conf = server->conf;
2078 if (server->dynamiclookuparg && !dynamicconfig(server)) {
2083 if (!conf->addrinfo && !resolvepeer(conf, 0)) {
2084 debug(DBG_WARN, "failed to resolve host %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
2088 memset(&timeout, 0, sizeof(struct timespec));
2090 if (conf->statusserver) {
2091 gettimeofday(&server->lastrcv, NULL);
2092 gettimeofday(&laststatsrv, NULL);
2095 if (conf->pdef->connecter) {
2096 if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 6 : 0, "clientwr"))
2098 server->connectionok = 1;
2099 if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
2100 debug(DBG_ERR, "clientwr: pthread_create failed");
2104 server->connectionok = 1;
2107 pthread_mutex_lock(&server->newrq_mutex);
2108 if (!server->newrq) {
2109 gettimeofday(&now, NULL);
2110 /* random 0-7 seconds */
2111 RAND_bytes(&rnd, 1);
2113 if (conf->statusserver) {
2114 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2115 if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
2116 timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
2118 if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
2119 timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
2122 if (timeout.tv_sec > now.tv_sec)
2123 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
2125 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
2128 if (server->newrq) {
2129 debug(DBG_DBG, "clientwr: got new request");
2134 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
2136 pthread_mutex_unlock(&server->newrq_mutex);
2138 for (i = 0; i < MAX_REQUESTS; i++) {
2139 if (server->clientrdgone) {
2140 pthread_join(clientrdth, NULL);
2144 for (; i < MAX_REQUESTS; i++) {
2145 rqout = server->requests + i;
2147 pthread_mutex_lock(rqout->lock);
2150 pthread_mutex_unlock(rqout->lock);
2154 if (i == MAX_REQUESTS)
2157 gettimeofday(&now, NULL);
2158 if (now.tv_sec < rqout->expiry.tv_sec) {
2159 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2160 timeout.tv_sec = rqout->expiry.tv_sec;
2161 pthread_mutex_unlock(rqout->lock);
2165 if (rqout->tries == (*rqout->rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
2166 debug(DBG_DBG, "clientwr: removing expired packet from queue");
2167 if (conf->statusserver) {
2168 if (*rqout->rq->buf == RAD_Status_Server) {
2169 debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->host);
2170 if (server->lostrqs < 255)
2174 debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->host);
2175 if (server->lostrqs < 255)
2178 freerqoutdata(rqout);
2179 pthread_mutex_unlock(rqout->lock);
2183 rqout->expiry.tv_sec = now.tv_sec + conf->retryinterval;
2184 if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
2185 timeout.tv_sec = rqout->expiry.tv_sec;
2187 conf->pdef->clientradput(server, rqout->rq->buf);
2188 pthread_mutex_unlock(rqout->lock);
2190 if (conf->statusserver) {
2191 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2192 gettimeofday(&now, NULL);
2193 if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
2195 statsrvrq = createstatsrvrq();
2197 debug(DBG_DBG, "clientwr: sending status server to %s", conf->host);
2198 sendrq(server, statsrvrq);
2204 conf->servers = NULL;
2205 if (server->dynamiclookuparg) {
2206 removeserversubrealms(realms, conf);
2210 freeclsrvconf(conf);
2212 freeserver(server, 1);
2213 ERR_remove_state(0);
2217 void createlistener(uint8_t type, char *arg) {
2219 struct clsrvconf *listenres;
2220 struct addrinfo *res;
2221 int s = -1, on = 1, *sp = NULL;
2223 listenres = resolve_hostport(type, arg, protodefs[type].portdefault);
2225 debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
2227 for (res = listenres->addrinfo; res; res = res->ai_next) {
2228 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
2230 debug(DBG_WARN, "createlistener: socket failed");
2233 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
2235 if (res->ai_family == AF_INET6)
2236 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
2238 if (bind(s, res->ai_addr, res->ai_addrlen)) {
2239 debug(DBG_WARN, "createlistener: bind failed");
2245 sp = malloc(sizeof(int));
2247 debugx(1, DBG_ERR, "malloc failed");
2249 if (pthread_create(&th, NULL, protodefs[type].listener, (void *)sp))
2250 debugx(1, DBG_ERR, "pthread_create failed");
2254 debugx(1, DBG_ERR, "createlistener: socket/bind failed");
2256 debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type].name,
2257 listenres->host ? listenres->host : "*", listenres->port);
2258 freeclsrvres(listenres);
2261 void createlisteners(uint8_t type, char **args) {
2265 for (i = 0; args[i]; i++)
2266 createlistener(type, args[i]);
2268 createlistener(type, NULL);
2272 void ssl_info_callback(const SSL *ssl, int where, int ret) {
2276 w = where & ~SSL_ST_MASK;
2278 if (w & SSL_ST_CONNECT)
2280 else if (w & SSL_ST_ACCEPT)
2285 if (where & SSL_CB_LOOP)
2286 debug(DBG_DBG, "%s:%s\n", s, SSL_state_string_long(ssl));
2287 else if (where & SSL_CB_ALERT) {
2288 s = (where & SSL_CB_READ) ? "read" : "write";
2289 debug(DBG_DBG, "SSL3 alert %s:%s:%s\n", s, SSL_alert_type_string_long(ret), SSL_alert_desc_string_long(ret));
2291 else if (where & SSL_CB_EXIT) {
2293 debug(DBG_DBG, "%s:failed in %s\n", s, SSL_state_string_long(ssl));
2295 debug(DBG_DBG, "%s:error in %s\n", s, SSL_state_string_long(ssl));
2300 SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
2301 SSL_CTX *ctx = NULL;
2302 STACK_OF(X509_NAME) *calist;
2305 unsigned long error;
2308 ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
2309 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
2310 for (i = 0; i < CRYPTO_num_locks(); i++) {
2311 ssl_lock_count[i] = 0;
2312 pthread_mutex_init(&ssl_locks[i], NULL);
2314 CRYPTO_set_id_callback(ssl_thread_id);
2315 CRYPTO_set_locking_callback(ssl_locking_callback);
2317 SSL_load_error_strings();
2320 while (!RAND_status()) {
2321 time_t t = time(NULL);
2322 pid_t pid = getpid();
2323 RAND_seed((unsigned char *)&t, sizeof(time_t));
2324 RAND_seed((unsigned char *)&pid, sizeof(pid));
2330 ctx = SSL_CTX_new(TLSv1_method());
2332 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2336 ctx = SSL_CTX_new(DTLSv1_method());
2338 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2340 SSL_CTX_set_read_ahead(ctx, 1);
2344 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2348 if (conf->certkeypwd) {
2349 SSL_CTX_set_default_passwd_cb_userdata(ctx, conf->certkeypwd);
2350 SSL_CTX_set_default_passwd_cb(ctx, pem_passwd_cb);
2352 if (!SSL_CTX_use_certificate_chain_file(ctx, conf->certfile) ||
2353 !SSL_CTX_use_PrivateKey_file(ctx, conf->certkeyfile, SSL_FILETYPE_PEM) ||
2354 !SSL_CTX_check_private_key(ctx) ||
2355 !SSL_CTX_load_verify_locations(ctx, conf->cacertfile, conf->cacertpath)) {
2356 while ((error = ERR_get_error()))
2357 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2358 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2363 calist = conf->cacertfile ? SSL_load_client_CA_file(conf->cacertfile) : NULL;
2364 if (!conf->cacertfile || calist) {
2365 if (conf->cacertpath) {
2367 calist = sk_X509_NAME_new_null();
2368 if (!SSL_add_dir_cert_subjects_to_stack(calist, conf->cacertpath)) {
2369 sk_X509_NAME_free(calist);
2375 while ((error = ERR_get_error()))
2376 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2377 debug(DBG_ERR, "tlscreatectx: Error adding CA subjects in TLS context %s", conf->name);
2381 ERR_clear_error(); /* add_dir_cert_subj returns errors on success */
2382 SSL_CTX_set_client_CA_list(ctx, calist);
2384 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
2385 SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
2387 if (conf->crlcheck) {
2388 x509_s = SSL_CTX_get_cert_store(ctx);
2389 X509_STORE_set_flags(x509_s, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL);
2392 debug(DBG_DBG, "tlscreatectx: created TLS context %s", conf->name);
2396 SSL_CTX *tlsgetctx(uint8_t type, char *alt1, char *alt2) {
2399 t = hash_read(tlsconfs, alt1, strlen(alt1));
2401 t = hash_read(tlsconfs, alt2, strlen(alt2));
2409 t->tlsctx = tlscreatectx(RAD_TLS, t);
2413 t->dtlsctx = tlscreatectx(RAD_DTLS, t);
2419 struct list *addsrvconfs(char *value, char **names) {
2420 struct list *conflist;
2422 struct list_node *entry;
2423 struct clsrvconf *conf = NULL;
2425 if (!names || !*names)
2428 conflist = list_create();
2430 debug(DBG_ERR, "malloc failed");
2434 for (n = 0; names[n]; n++) {
2435 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2436 conf = (struct clsrvconf *)entry->data;
2437 if (!strcasecmp(names[n], conf->name))
2441 debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
2442 list_destroy(conflist);
2445 if (!list_push(conflist, conf)) {
2446 debug(DBG_ERR, "malloc failed");
2447 list_destroy(conflist);
2450 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2455 void freerealm(struct realm *realm) {
2459 free(realm->message);
2460 regfree(&realm->regex);
2461 pthread_mutex_destroy(&realm->subrealms_mutex);
2462 if (realm->subrealms)
2463 list_destroy(realm->subrealms);
2464 if (realm->srvconfs) {
2465 /* emptying list without freeing data */
2466 while (list_shift(realm->srvconfs));
2467 list_destroy(realm->srvconfs);
2469 if (realm->accsrvconfs) {
2470 /* emptying list without freeing data */
2471 while (list_shift(realm->accsrvconfs));
2472 list_destroy(realm->accsrvconfs);
2477 struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
2479 struct realm *realm;
2480 char *s, *regex = NULL;
2482 if (*value == '/') {
2483 /* regexp, remove optional trailing / if present */
2484 if (value[strlen(value) - 1] == '/')
2485 value[strlen(value) - 1] = '\0';
2487 /* not a regexp, let us make it one */
2488 if (*value == '*' && !value[1])
2489 regex = stringcopy(".*", 0);
2491 for (n = 0, s = value; *s;)
2494 regex = malloc(strlen(value) + n + 3);
2497 for (n = 1, s = value; *s; s++) {
2507 debug(DBG_ERR, "malloc failed");
2511 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2514 realm = malloc(sizeof(struct realm));
2516 debug(DBG_ERR, "malloc failed");
2519 memset(realm, 0, sizeof(struct realm));
2521 if (pthread_mutex_init(&realm->subrealms_mutex, NULL)) {
2522 debug(DBG_ERR, "mutex init failed");
2528 realm->name = stringcopy(value, 0);
2530 debug(DBG_ERR, "malloc failed");
2533 if (message && strlen(message) > 253) {
2534 debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
2537 realm->message = message;
2538 realm->accresp = accresp;
2540 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2541 debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2545 if (servers && *servers) {
2546 realm->srvconfs = addsrvconfs(value, servers);
2547 if (!realm->srvconfs)
2551 if (accservers && *accservers) {
2552 realm->accsrvconfs = addsrvconfs(value, accservers);
2553 if (!realm->accsrvconfs)
2557 if (!list_push(realmlist, realm)) {
2558 debug(DBG_ERR, "malloc failed");
2559 pthread_mutex_destroy(&realm->subrealms_mutex);
2563 debug(DBG_DBG, "addrealm: added realm %s", value);
2573 for (n = 0; servers[n]; n++)
2578 for (n = 0; accservers[n]; n++)
2579 free(accservers[n]);
2585 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id) {
2586 struct clsrvconf *srvconf;
2587 struct realm *newrealm = NULL;
2588 char *realmname, *s;
2591 if (!conf->dynamiclookupcommand)
2594 /* create dynamic for the realm (string after last @, exit if nothing after @ */
2595 realmname = strrchr(id, '@');
2601 for (s = realmname; *s; s++)
2602 if (*s != '.' && *s != '-' && !isalnum((int)*s))
2605 pthread_mutex_lock(&realm->subrealms_mutex);
2606 /* exit if we now already got a matching subrealm */
2607 if (id2realm(realm->subrealms, id))
2609 srvconf = malloc(sizeof(struct clsrvconf));
2611 debug(DBG_ERR, "malloc failed");
2615 if (!addserver(srvconf))
2618 if (!realm->subrealms)
2619 realm->subrealms = list_create();
2620 if (!realm->subrealms)
2622 newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, NULL, 0);
2626 /* add server and accserver to newrealm */
2627 newrealm->srvconfs = list_create();
2628 if (!newrealm->srvconfs || !list_push(newrealm->srvconfs, srvconf)) {
2629 debug(DBG_ERR, "malloc failed");
2632 newrealm->accsrvconfs = list_create();
2633 if (!newrealm->accsrvconfs || !list_push(newrealm->accsrvconfs, srvconf)) {
2634 debug(DBG_ERR, "malloc failed");
2638 srvconf->servers->dynamiclookuparg = stringcopy(realmname, 0);
2640 if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
2641 debug(DBG_ERR, "pthread_create failed");
2644 pthread_detach(clientth);
2649 list_removedata(realm->subrealms, newrealm);
2650 freerealm(newrealm);
2651 if (!list_first(realm->subrealms)) {
2652 list_destroy(realm->subrealms);
2653 realm->subrealms = NULL;
2656 freeserver(srvconf->servers, 1);
2658 debug(DBG_ERR, "failed to create dynamic server");
2661 pthread_mutex_unlock(&realm->subrealms_mutex);
2664 int dynamicconfig(struct server *server) {
2665 int ok, fd[2], status;
2667 struct clsrvconf *conf = server->conf;
2668 struct gconffile *cf = NULL;
2670 /* for now we only learn hostname/address */
2671 debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
2674 debug(DBG_ERR, "dynamicconfig: pipe error");
2679 debug(DBG_ERR, "dynamicconfig: fork error");
2683 } else if (pid == 0) {
2686 if (fd[1] != STDOUT_FILENO) {
2687 if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
2688 debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
2691 if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
2692 debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
2696 pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
2697 ok = getgenericconfig(&cf, NULL,
2698 "Server", CONF_CBK, confserver_cb, (void *)conf,
2703 if (waitpid(pid, &status, 0) < 0) {
2704 debug(DBG_ERR, "dynamicconfig: wait error");
2709 debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
2717 debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
2721 int addmatchcertattr(struct clsrvconf *conf) {
2725 if (!strncasecmp(conf->matchcertattr, "CN:/", 4)) {
2726 r = &conf->certcnregex;
2727 v = conf->matchcertattr + 4;
2728 } else if (!strncasecmp(conf->matchcertattr, "SubjectAltName:URI:/", 20)) {
2729 r = &conf->certuriregex;
2730 v = conf->matchcertattr + 20;
2735 /* regexp, remove optional trailing / if present */
2736 if (v[strlen(v) - 1] == '/')
2737 v[strlen(v) - 1] = '\0';
2741 *r = malloc(sizeof(regex_t));
2743 debug(DBG_ERR, "malloc failed");
2746 if (regcomp(*r, v, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2749 debug(DBG_ERR, "failed to compile regular expression %s", v);
2755 /* should accept both names and numeric values, only numeric right now */
2756 uint8_t attrname2val(char *attrname) {
2759 val = atoi(attrname);
2760 return val > 0 && val < 256 ? val : 0;
2763 /* should accept both names and numeric values, only numeric right now */
2764 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2767 *vendor = atoi(attrname);
2768 s = strchr(attrname, ':');
2773 *type = atoi(s + 1);
2774 return *type >= 0 && *type < 256;
2777 /* should accept both names and numeric values, only numeric right now */
2778 struct tlv *extractattr(char *nameval) {
2783 s = strchr(nameval, ':');
2784 name = atoi(nameval);
2785 if (!s || name < 1 || name > 255)
2787 len = strlen(s + 1);
2790 a = malloc(sizeof(struct tlv));
2793 a->v = (uint8_t *)stringcopy(s + 1, 0);
2803 /* should accept both names and numeric values, only numeric right now */
2804 struct modattr *extractmodattr(char *nameval) {
2809 if (!strncasecmp(nameval, "User-Name:/", 11)) {
2813 s = strchr(nameval, ':');
2814 name = atoi(nameval);
2815 if (!s || name < 1 || name > 255 || s[1] != '/')
2819 /* regexp, remove optional trailing / if present */
2820 if (s[strlen(s) - 1] == '/')
2821 s[strlen(s) - 1] = '\0';
2829 m = malloc(sizeof(struct modattr));
2831 debug(DBG_ERR, "malloc failed");
2836 m->replacement = stringcopy(t, 0);
2837 if (!m->replacement) {
2839 debug(DBG_ERR, "malloc failed");
2843 m->regex = malloc(sizeof(regex_t));
2845 free(m->replacement);
2847 debug(DBG_ERR, "malloc failed");
2851 if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
2853 free(m->replacement);
2855 debug(DBG_ERR, "failed to compile regular expression %s", s);
2862 struct rewrite *getrewrite(char *alt1, char *alt2) {
2865 if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
2867 if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
2872 void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **modattrs) {
2873 struct rewrite *rewrite = NULL;
2875 uint8_t *rma = NULL;
2876 uint32_t *p, *rmva = NULL;
2877 struct list *adda = NULL, *moda = NULL;
2882 for (n = 0; rmattrs[n]; n++);
2883 rma = calloc(n + 1, sizeof(uint8_t));
2885 debugx(1, DBG_ERR, "malloc failed");
2887 for (i = 0; i < n; i++) {
2888 if (!(rma[i] = attrname2val(rmattrs[i])))
2889 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", rmattrs[i]);
2897 for (n = 0; rmvattrs[n]; n++);
2898 rmva = calloc(2 * n + 1, sizeof(uint32_t));
2900 debugx(1, DBG_ERR, "malloc failed");
2902 for (p = rmva, i = 0; i < n; i++, p += 2) {
2903 if (!vattrname2val(rmvattrs[i], p, p + 1))
2904 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", rmvattrs[i]);
2912 adda = list_create();
2914 debugx(1, DBG_ERR, "malloc failed");
2915 for (i = 0; addattrs[i]; i++) {
2916 a = extractattr(addattrs[i]);
2918 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addattrs[i]);
2920 if (!list_push(adda, a))
2921 debugx(1, DBG_ERR, "malloc failed");
2927 moda = list_create();
2929 debugx(1, DBG_ERR, "malloc failed");
2930 for (i = 0; modattrs[i]; i++) {
2931 m = extractmodattr(modattrs[i]);
2933 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", modattrs[i]);
2935 if (!list_push(moda, m))
2936 debugx(1, DBG_ERR, "malloc failed");
2941 if (rma || rmva || adda || moda) {
2942 rewrite = malloc(sizeof(struct rewrite));
2944 debugx(1, DBG_ERR, "malloc failed");
2945 rewrite->removeattrs = rma;
2946 rewrite->removevendorattrs = rmva;
2947 rewrite->addattrs = adda;
2948 rewrite->modattrs = moda;
2951 if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
2952 debugx(1, DBG_ERR, "malloc failed");
2953 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2956 void freeclsrvconf(struct clsrvconf *conf) {
2962 free(conf->matchcertattr);
2963 if (conf->certcnregex)
2964 regfree(conf->certcnregex);
2965 if (conf->certuriregex)
2966 regfree(conf->certuriregex);
2967 free(conf->confrewritein);
2968 free(conf->confrewriteout);
2969 if (conf->rewriteusername) {
2970 if (conf->rewriteusername->regex)
2971 regfree(conf->rewriteusername->regex);
2972 free(conf->rewriteusername->replacement);
2973 free(conf->rewriteusername);
2975 free(conf->dynamiclookupcommand);
2976 free(conf->rewritein);
2977 free(conf->rewriteout);
2979 freeaddrinfo(conf->addrinfo);
2981 pthread_mutex_destroy(conf->lock);
2984 /* not touching ssl_ctx, clients and servers */
2988 int mergeconfstring(char **dst, char **src) {
2997 t = stringcopy(*dst, 0);
2999 debug(DBG_ERR, "malloc failed");
3007 /* assumes dst is a shallow copy */
3008 int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
3009 if (!mergeconfstring(&dst->name, &src->name) ||
3010 !mergeconfstring(&dst->host, &src->host) ||
3011 !mergeconfstring(&dst->port, &src->port) ||
3012 !mergeconfstring(&dst->secret, &src->secret) ||
3013 !mergeconfstring(&dst->tls, &src->tls) ||
3014 !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
3015 !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
3016 !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
3017 !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
3020 dst->pdef = src->pdef;
3021 dst->statusserver = src->statusserver;
3022 dst->certnamecheck = src->certnamecheck;
3023 if (src->retryinterval != 255)
3024 dst->retryinterval = src->retryinterval;
3025 if (src->retrycount != 255)
3026 dst->retrycount = src->retrycount;
3030 int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3031 struct clsrvconf *conf;
3032 char *conftype = NULL, *rewriteinalias = NULL;
3033 long int dupinterval = LONG_MIN;
3035 debug(DBG_DBG, "confclient_cb called for %s", block);
3037 conf = malloc(sizeof(struct clsrvconf));
3039 debugx(1, DBG_ERR, "malloc failed");
3040 memset(conf, 0, sizeof(struct clsrvconf));
3041 conf->certnamecheck = 1;
3043 if (!getgenericconfig(cf, block,
3044 "type", CONF_STR, &conftype,
3045 "host", CONF_STR, &conf->host,
3046 "secret", CONF_STR, &conf->secret,
3047 "tls", CONF_STR, &conf->tls,
3048 "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
3049 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3050 "DuplicateInterval", CONF_LINT, &dupinterval,
3051 "rewrite", CONF_STR, &rewriteinalias,
3052 "rewriteIn", CONF_STR, &conf->confrewritein,
3053 "rewriteOut", CONF_STR, &conf->confrewriteout,
3054 "rewriteattribute", CONF_STR, &conf->confrewriteusername,
3057 debugx(1, DBG_ERR, "configuration error");
3059 conf->name = stringcopy(val, 0);
3061 conf->host = stringcopy(val, 0);
3062 if (!conf->name || !conf->host)
3063 debugx(1, DBG_ERR, "malloc failed");
3066 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3067 conf->type = protoname2int(conftype);
3068 conf->pdef = &protodefs[conf->type];
3069 if (!conf->pdef->name)
3070 debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3073 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3074 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultclient", "default");
3076 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
3077 if (conf->matchcertattr && !addmatchcertattr(conf))
3078 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3081 if (dupinterval != LONG_MIN) {
3082 if (dupinterval < 0 || dupinterval > 255)
3083 debugx(1, DBG_ERR, "error in block %s, value of option DuplicateInterval is %d, must be 0-255", block, dupinterval);
3084 conf->dupinterval = (uint8_t)dupinterval;
3086 conf->dupinterval = conf->pdef->duplicateintervaldefault;
3088 if (!conf->confrewritein)
3089 conf->confrewritein = rewriteinalias;
3091 free(rewriteinalias);
3092 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
3093 if (conf->confrewriteout)
3094 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3096 if (conf->confrewriteusername) {
3097 conf->rewriteusername = extractmodattr(conf->confrewriteusername);
3098 if (!conf->rewriteusername)
3099 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
3102 if (!resolvepeer(conf, 0))
3103 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3105 if (!conf->secret) {
3106 if (!conf->pdef->secretdefault)
3107 debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3108 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3110 debugx(1, DBG_ERR, "malloc failed");
3113 conf->lock = malloc(sizeof(pthread_mutex_t));
3115 debugx(1, DBG_ERR, "malloc failed");
3117 pthread_mutex_init(conf->lock, NULL);
3118 if (!list_push(clconfs, conf))
3119 debugx(1, DBG_ERR, "malloc failed");
3123 int compileserverconfig(struct clsrvconf *conf, const char *block) {
3124 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3125 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultserver", "default");
3126 if (!conf->ssl_ctx) {
3127 debug(DBG_ERR, "error in block %s, no tls context defined", block);
3130 if (conf->matchcertattr && !addmatchcertattr(conf)) {
3131 debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3137 conf->port = stringcopy(conf->pdef->portdefault, 0);
3139 debug(DBG_ERR, "malloc failed");
3144 if (conf->retryinterval == 255)
3145 conf->retryinterval = protodefs[conf->type].retryintervaldefault;
3146 if (conf->retrycount == 255)
3147 conf->retrycount = protodefs[conf->type].retrycountdefault;
3149 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
3150 if (conf->confrewriteout)
3151 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3153 if (!conf->secret) {
3154 if (!conf->pdef->secretdefault) {
3155 debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3158 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3159 if (!conf->secret) {
3160 debug(DBG_ERR, "malloc failed");
3165 if (!conf->dynamiclookupcommand && !resolvepeer(conf, 0)) {
3166 debug(DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3172 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3173 struct clsrvconf *conf, *resconf;
3174 char *conftype = NULL, *rewriteinalias = NULL;
3175 long int retryinterval = LONG_MIN, retrycount = LONG_MIN;
3177 debug(DBG_DBG, "confserver_cb called for %s", block);
3179 conf = malloc(sizeof(struct clsrvconf));
3181 debug(DBG_ERR, "malloc failed");
3184 memset(conf, 0, sizeof(struct clsrvconf));
3185 resconf = (struct clsrvconf *)arg;
3187 conf->statusserver = resconf->statusserver;
3188 conf->certnamecheck = resconf->certnamecheck;
3190 conf->certnamecheck = 1;
3192 if (!getgenericconfig(cf, block,
3193 "type", CONF_STR, &conftype,
3194 "host", CONF_STR, &conf->host,
3195 "port", CONF_STR, &conf->port,
3196 "secret", CONF_STR, &conf->secret,
3197 "tls", CONF_STR, &conf->tls,
3198 "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
3199 "rewrite", CONF_STR, &rewriteinalias,
3200 "rewriteIn", CONF_STR, &conf->confrewritein,
3201 "rewriteOut", CONF_STR, &conf->confrewriteout,
3202 "StatusServer", CONF_BLN, &conf->statusserver,
3203 "RetryInterval", CONF_LINT, &retryinterval,
3204 "RetryCount", CONF_LINT, &retrycount,
3205 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3206 "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
3209 debug(DBG_ERR, "configuration error");
3213 conf->name = stringcopy(val, 0);
3215 debug(DBG_ERR, "malloc failed");
3219 conf->host = stringcopy(val, 0);
3221 debug(DBG_ERR, "malloc failed");
3227 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3228 conf->type = protoname2int(conftype);
3229 conf->pdef = &protodefs[conf->type];
3230 if (!conf->pdef->name) {
3231 debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3237 if (!conf->confrewritein)
3238 conf->confrewritein = rewriteinalias;
3240 free(rewriteinalias);
3241 rewriteinalias = NULL;
3243 if (retryinterval != LONG_MIN) {
3244 if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
3245 debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
3248 conf->retryinterval = (uint8_t)retryinterval;
3250 conf->retryinterval = 255;
3252 if (retrycount != LONG_MIN) {
3253 if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
3254 debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
3257 conf->retrycount = (uint8_t)retrycount;
3259 conf->retrycount = 255;
3262 if (!mergesrvconf(resconf, conf))
3266 if (conf->dynamiclookupcommand) {
3267 free(conf->dynamiclookupcommand);
3268 conf->dynamiclookupcommand = NULL;
3272 if (resconf || !conf->dynamiclookupcommand) {
3273 if (!compileserverconfig(conf, block))
3280 if (!list_push(srvconfs, conf)) {
3281 debug(DBG_ERR, "malloc failed");
3288 free(rewriteinalias);
3289 freeclsrvconf(conf);
3293 int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3294 char **servers = NULL, **accservers = NULL, *msg = NULL;
3295 uint8_t accresp = 0;
3297 debug(DBG_DBG, "confrealm_cb called for %s", block);
3299 if (!getgenericconfig(cf, block,
3300 "server", CONF_MSTR, &servers,
3301 "accountingServer", CONF_MSTR, &accservers,
3302 "ReplyMessage", CONF_STR, &msg,
3303 "AccountingResponse", CONF_BLN, &accresp,
3306 debugx(1, DBG_ERR, "configuration error");
3308 addrealm(realms, val, servers, accservers, msg, accresp);
3312 int conftls_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3315 debug(DBG_DBG, "conftls_cb called for %s", block);
3317 conf = malloc(sizeof(struct tls));
3319 debug(DBG_ERR, "conftls_cb: malloc failed");
3322 memset(conf, 0, sizeof(struct tls));
3324 if (!getgenericconfig(cf, block,
3325 "CACertificateFile", CONF_STR, &conf->cacertfile,
3326 "CACertificatePath", CONF_STR, &conf->cacertpath,
3327 "CertificateFile", CONF_STR, &conf->certfile,
3328 "CertificateKeyFile", CONF_STR, &conf->certkeyfile,
3329 "CertificateKeyPassword", CONF_STR, &conf->certkeypwd,
3330 "CRLCheck", CONF_BLN, &conf->crlcheck,
3333 debug(DBG_ERR, "conftls_cb: configuration error in block %s", val);
3336 if (!conf->certfile || !conf->certkeyfile) {
3337 debug(DBG_ERR, "conftls_cb: TLSCertificateFile and TLSCertificateKeyFile must be specified in block %s", val);
3340 if (!conf->cacertfile && !conf->cacertpath) {
3341 debug(DBG_ERR, "conftls_cb: CA Certificate file or path need to be specified in block %s", val);
3345 conf->name = stringcopy(val, 0);
3347 debug(DBG_ERR, "conftls_cb: malloc failed");
3351 if (!hash_insert(tlsconfs, val, strlen(val), conf)) {
3352 debug(DBG_ERR, "conftls_cb: malloc failed");
3356 debug(DBG_DBG, "conftls_cb: added TLS block %s", val);
3360 free(conf->cacertfile);
3361 free(conf->cacertpath);
3362 free(conf->certfile);
3363 free(conf->certkeyfile);
3364 free(conf->certkeypwd);
3369 int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3370 char **rmattrs = NULL, **rmvattrs = NULL, **addattrs = NULL, **modattrs = NULL;
3372 debug(DBG_DBG, "confrewrite_cb called for %s", block);
3374 if (!getgenericconfig(cf, block,
3375 "removeAttribute", CONF_MSTR, &rmattrs,
3376 "removeVendorAttribute", CONF_MSTR, &rmvattrs,
3377 "addAttribute", CONF_MSTR, &addattrs,
3378 "modifyAttribute", CONF_MSTR, &modattrs,
3381 debugx(1, DBG_ERR, "configuration error");
3382 addrewrite(val, rmattrs, rmvattrs, addattrs, modattrs);
3386 void getmainconfig(const char *configfile) {
3387 long int loglevel = LONG_MIN;
3388 struct gconffile *cfs;
3390 cfs = openconfigfile(configfile);
3391 memset(&options, 0, sizeof(options));
3393 clconfs = list_create();
3395 debugx(1, DBG_ERR, "malloc failed");
3397 srvconfs = list_create();
3399 debugx(1, DBG_ERR, "malloc failed");
3401 realms = list_create();
3403 debugx(1, DBG_ERR, "malloc failed");
3405 tlsconfs = hash_create();
3407 debugx(1, DBG_ERR, "malloc failed");
3409 rewriteconfs = hash_create();
3411 debugx(1, DBG_ERR, "malloc failed");
3413 if (!getgenericconfig(&cfs, NULL,
3414 "ListenUDP", CONF_MSTR, &options.listenudp,
3415 "ListenTCP", CONF_MSTR, &options.listentcp,
3416 "ListenTLS", CONF_MSTR, &options.listentls,
3417 "ListenDTLS", CONF_MSTR, &options.listendtls,
3418 "ListenAccountingUDP", CONF_MSTR, &options.listenaccudp,
3419 "SourceUDP", CONF_STR, &options.sourceudp,
3420 "SourceTCP", CONF_STR, &options.sourcetcp,
3421 "SourceTLS", CONF_STR, &options.sourcetls,
3422 "SourceDTLS", CONF_STR, &options.sourcedtls,
3423 "LogLevel", CONF_LINT, &loglevel,
3424 "LogDestination", CONF_STR, &options.logdestination,
3425 "LoopPrevention", CONF_BLN, &options.loopprevention,
3426 "Client", CONF_CBK, confclient_cb, NULL,
3427 "Server", CONF_CBK, confserver_cb, NULL,
3428 "Realm", CONF_CBK, confrealm_cb, NULL,
3429 "TLS", CONF_CBK, conftls_cb, NULL,
3430 "Rewrite", CONF_CBK, confrewrite_cb, NULL,
3433 debugx(1, DBG_ERR, "configuration error");
3435 if (loglevel != LONG_MIN) {
3436 if (loglevel < 1 || loglevel > 4)
3437 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3 or 4", configfile, loglevel);
3438 options.loglevel = (uint8_t)loglevel;
3442 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile) {
3445 while ((c = getopt(argc, argv, "c:d:fpv")) != -1) {
3448 *configfile = optarg;
3451 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3452 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3453 *loglevel = *optarg - '0';
3462 debugx(0, DBG_ERR, "radsecproxy revision $Rev$");
3467 if (!(argc - optind))
3471 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -p ] [ -v ]", argv[0]);
3475 int daemon(int a, int b) {
3483 for (i = 0; i < 3; i++) {
3485 open("/dev/null", O_RDWR);
3491 void *sighandler(void *arg) {
3496 sigemptyset(&sigset);
3497 sigaddset(&sigset, SIGPIPE);
3498 sigwait(&sigset, &sig);
3499 /* only get SIGPIPE right now, so could simplify below code */
3502 /* completely ignoring this */
3505 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3508 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3513 int main(int argc, char **argv) {
3516 struct list_node *entry;
3517 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3518 char *configfile = NULL;
3519 struct clsrvconf *srvconf;
3522 debug_init("radsecproxy");
3523 debug_set_level(DEBUG_LEVEL);
3525 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile);
3527 debug_set_level(loglevel);
3528 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3530 options.loglevel = loglevel;
3531 else if (options.loglevel)
3532 debug_set_level(options.loglevel);
3534 debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
3535 free(options.logdestination);
3537 if (!list_first(clconfs))
3538 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3539 if (!list_first(realms))
3540 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3543 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3545 if (!foreground && (daemon(0, 0) < 0))
3546 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3548 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3550 sigemptyset(&sigset);
3551 /* exit on all but SIGPIPE, ignore more? */
3552 sigaddset(&sigset, SIGPIPE);
3553 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3554 pthread_create(&sigth, NULL, sighandler, NULL);
3556 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3557 srvconf = (struct clsrvconf *)entry->data;
3558 if (srvconf->dynamiclookupcommand)
3560 if (!addserver(srvconf))
3561 debugx(1, DBG_ERR, "failed to add server");
3562 if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
3563 (void *)(srvconf->servers)))
3564 debugx(1, DBG_ERR, "pthread_create failed");
3566 /* srcprotores for UDP no longer needed */
3567 if (srcprotores[RAD_UDP]) {
3568 freeaddrinfo(srcprotores[RAD_UDP]);
3569 srcprotores[RAD_UDP] = NULL;
3572 for (i = 0; protodefs[i].name; i++)
3573 if (protodefs[i].initextra)
3574 protodefs[i].initextra();
3576 if (find_clconf_type(RAD_TCP, NULL))
3577 createlisteners(RAD_TCP, options.listentcp);
3579 if (find_clconf_type(RAD_TLS, NULL))
3580 createlisteners(RAD_TLS, options.listentls);
3582 if (find_clconf_type(RAD_DTLS, NULL))
3583 createlisteners(RAD_DTLS, options.listendtls);
3585 if (find_clconf_type(RAD_UDP, NULL)) {
3586 createlisteners(RAD_UDP, options.listenudp);
3587 if (options.listenaccudp)
3588 createlisteners(RAD_UDP, options.listenaccudp);
3591 /* just hang around doing nothing, anything to do here? */