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()
38 #include <sys/socket.h>
39 #include <netinet/in.h>
48 #include <sys/types.h>
49 #include <sys/select.h>
52 #include <arpa/inet.h>
56 #include <openssl/ssl.h>
57 #include <openssl/rand.h>
58 #include <openssl/err.h>
59 #include <openssl/md5.h>
60 #include <openssl/hmac.h>
61 #include <openssl/x509v3.h>
67 #include "radsecproxy.h"
73 static struct options options;
74 static struct list *clconfs, *srvconfs;
76 struct hash *tlsconfs, *rewriteconfs;
78 static struct addrinfo *srcprotores[4] = { NULL, NULL, NULL, NULL };
80 static pthread_mutex_t *ssl_locks = NULL;
81 static long *ssl_lock_count;
85 /* minimum required declarations to avoid reordering code */
86 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id);
87 int dynamicconfig(struct server *server);
88 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
89 void freerealm(struct realm *realm);
90 void freeclsrvconf(struct clsrvconf *conf);
91 void freerqdata(struct request *rq);
93 static const struct protodefs protodefs[] = {
94 { "udp", /* UDP, assuming RAD_UDP defined as 0 */
95 NULL, /* secretdefault */
96 SOCK_DGRAM, /* socktype */
97 "1812", /* portdefault */
98 REQUEST_RETRY_COUNT, /* retrycountdefault */
99 10, /* retrycountmax */
100 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
101 60, /* retryintervalmax */
102 udpserverrd, /* listener */
103 &options.sourceudp, /* srcaddrport */
104 NULL, /* connecter */
105 NULL, /* clientconnreader */
106 clientradputudp, /* clientradput */
107 addclientudp, /* addclient */
108 addserverextraudp, /* addserverextra */
109 initextraudp /* initextra */
111 { "tls", /* TLS, assuming RAD_TLS defined as 1 */
112 "mysecret", /* secretdefault */
113 SOCK_STREAM, /* socktype */
114 "2083", /* portdefault */
115 0, /* retrycountdefault */
116 0, /* retrycountmax */
117 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
118 60, /* retryintervalmax */
119 tlslistener, /* listener */
120 &options.sourcetls, /* srcaddrport */
121 tlsconnect, /* connecter */
122 tlsclientrd, /* clientconnreader */
123 clientradputtls, /* clientradput */
124 NULL, /* addclient */
125 NULL, /* addserverextra */
128 { "tcp", /* TCP, assuming RAD_TCP defined as 2 */
129 NULL, /* secretdefault */
130 SOCK_STREAM, /* socktype */
131 "1812", /* portdefault */
132 0, /* retrycountdefault */
133 0, /* retrycountmax */
134 REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT, /* retryintervaldefault */
135 60, /* retryintervalmax */
136 tcplistener, /* listener */
137 &options.sourcetcp, /* srcaddrport */
138 tcpconnect, /* connecter */
139 tcpclientrd, /* clientconnreader */
140 clientradputtcp, /* clientradput */
141 NULL, /* addclient */
142 NULL, /* addserverextra */
145 { "dtls", /* DTLS, assuming RAD_DTLS defined as 3 */
146 "mysecret", /* secretdefault */
147 SOCK_DGRAM, /* socktype */
148 "2083", /* portdefault */
149 REQUEST_RETRY_COUNT, /* retrycountdefault */
150 10, /* retrycountmax */
151 REQUEST_RETRY_INTERVAL, /* retryintervaldefault */
152 60, /* retryintervalmax */
153 udpdtlsserverrd, /* listener */
154 &options.sourcedtls, /* srcaddrport */
155 dtlsconnect, /* connecter */
156 dtlsclientrd, /* clientconnreader */
157 clientradputdtls, /* clientradput */
158 NULL, /* addclient */
159 addserverextradtls, /* addserverextra */
160 initextradtls /* initextra */
166 uint8_t protoname2int(const char *name) {
169 for (i = 0; protodefs[i].name && strcasecmp(protodefs[i].name, name); i++);
173 /* callbacks for making OpenSSL thread safe */
174 unsigned long ssl_thread_id() {
175 return (unsigned long)pthread_self();
178 void ssl_locking_callback(int mode, int type, const char *file, int line) {
179 if (mode & CRYPTO_LOCK) {
180 pthread_mutex_lock(&ssl_locks[type]);
181 ssl_lock_count[type]++;
183 pthread_mutex_unlock(&ssl_locks[type]);
186 static int pem_passwd_cb(char *buf, int size, int rwflag, void *userdata) {
187 int pwdlen = strlen(userdata);
188 if (rwflag != 0 || pwdlen > size) /* not for decryption or too large */
190 memcpy(buf, userdata, pwdlen);
194 static int verify_cb(int ok, X509_STORE_CTX *ctx) {
199 err_cert = X509_STORE_CTX_get_current_cert(ctx);
200 err = X509_STORE_CTX_get_error(ctx);
201 depth = X509_STORE_CTX_get_error_depth(ctx);
203 if (depth > MAX_CERT_DEPTH) {
205 err = X509_V_ERR_CERT_CHAIN_TOO_LONG;
206 X509_STORE_CTX_set_error(ctx, err);
210 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
211 debug(DBG_WARN, "verify error: num=%d:%s:depth=%d:%s", err, X509_verify_cert_error_string(err), depth, buf);
214 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
215 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf, 256);
216 debug(DBG_WARN, "\tIssuer=%s", buf);
218 case X509_V_ERR_CERT_NOT_YET_VALID:
219 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
220 debug(DBG_WARN, "\tCertificate not yet valid");
222 case X509_V_ERR_CERT_HAS_EXPIRED:
223 debug(DBG_WARN, "Certificate has expired");
225 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
226 debug(DBG_WARN, "Certificate no longer valid (after notAfter)");
231 printf("certificate verify returns %d\n", ok);
236 struct addrinfo *getsrcprotores(uint8_t type) {
237 return srcprotores[type];
240 int resolvepeer(struct clsrvconf *conf, int ai_flags) {
241 struct addrinfo hints, *addrinfo, *res;
245 slash = conf->host ? strchr(conf->host, '/') : NULL;
249 debug(DBG_WARN, "resolvepeer: prefix length must be specified after the / in %s", conf->host);
253 if (*s < '0' || *s > '9') {
254 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
257 plen = atoi(slash + 1);
258 if (plen < 0 || plen > 128) {
259 debug(DBG_WARN, "resolvepeer: %s in %s is not a valid prefix length", slash + 1, conf->host);
264 memset(&hints, 0, sizeof(hints));
265 hints.ai_socktype = conf->pdef->socktype;
266 hints.ai_family = AF_UNSPEC;
267 hints.ai_flags = ai_flags;
268 if (!conf->host && !conf->port) {
269 /* getaddrinfo() doesn't like host and port to be NULL */
270 if (getaddrinfo(conf->host, conf->pdef->portdefault, &hints, &addrinfo)) {
271 debug(DBG_WARN, "resolvepeer: can't resolve (null) port (null)");
274 for (res = addrinfo; res; res = res->ai_next) {
275 switch (res->ai_family) {
277 ((struct sockaddr_in *)res->ai_addr)->sin_port = 0;
280 ((struct sockaddr_in6 *)res->ai_addr)->sin6_port = 0;
286 hints.ai_flags |= AI_NUMERICHOST;
287 if (getaddrinfo(conf->host, conf->port, &hints, &addrinfo)) {
288 debug(DBG_WARN, "resolvepeer: can't resolve %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
293 switch (addrinfo->ai_family) {
296 debug(DBG_WARN, "resolvepeer: prefix length must be <= 32 in %s", conf->host);
297 freeaddrinfo(addrinfo);
304 debug(DBG_WARN, "resolvepeer: prefix must be IPv4 or IPv6 in %s", conf->host);
305 freeaddrinfo(addrinfo);
308 conf->prefixlen = plen;
310 conf->prefixlen = 255;
313 freeaddrinfo(conf->addrinfo);
314 conf->addrinfo = addrinfo;
318 char *parsehostport(char *s, struct clsrvconf *conf, char *default_port) {
323 /* allow literal addresses and port, e.g. [2001:db8::1]:1812 */
327 for (; *p && *p != ']' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
329 debugx(1, DBG_ERR, "no ] matching initial [");
333 for (; *p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n'; p++);
336 debugx(1, DBG_ERR, "missing host/address");
338 conf->host = stringcopy(field, p - field);
341 if (*p && *p != ':' && *p != ' ' && *p != '\t' && *p != '\n')
342 debugx(1, DBG_ERR, "unexpected character after ]");
345 /* port number or service name is specified */;
347 for (; *p && *p != ' ' && *p != '\t' && *p != '\n'; p++);
349 debugx(1, DBG_ERR, "syntax error, : but no following port");
350 conf->port = stringcopy(field, p - field);
352 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
356 struct clsrvconf *resolve_hostport(uint8_t type, char *lconf, char *default_port) {
357 struct clsrvconf *conf;
359 conf = malloc(sizeof(struct clsrvconf));
361 debugx(1, DBG_ERR, "malloc failed");
362 memset(conf, 0, sizeof(struct clsrvconf));
364 conf->pdef = &protodefs[conf->type];
366 parsehostport(lconf, conf, default_port);
367 if (!strcmp(conf->host, "*")) {
372 conf->port = default_port ? stringcopy(default_port, 0) : NULL;
373 if (!resolvepeer(conf, AI_PASSIVE))
374 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
378 void freeclsrvres(struct clsrvconf *res) {
382 freeaddrinfo(res->addrinfo);
386 int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
388 struct addrinfo *res;
390 for (res = addrinfo; res; res = res->ai_next) {
391 if (family != AF_UNSPEC && family != res->ai_family)
393 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
395 debug(DBG_WARN, "bindtoaddr: socket failed");
399 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
402 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
404 if (!bind(s, res->ai_addr, res->ai_addrlen))
406 debug(DBG_WARN, "bindtoaddr: bind failed");
412 int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src) {
414 struct addrinfo *res;
417 for (res = addrinfo; res; res = res->ai_next) {
418 s = bindtoaddr(src, res->ai_family, 1, 1);
420 debug(DBG_WARN, "connecttoserver: socket failed");
423 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
425 debug(DBG_WARN, "connecttoserver: connect failed");
432 /* returns 1 if the len first bits are equal, else 0 */
433 int prefixmatch(void *a1, void *a2, uint8_t len) {
434 static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
436 if (l && memcmp(a1, a2, l))
441 return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
444 /* returns next config with matching address, or NULL */
445 struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur) {
446 struct sockaddr_in6 *sa6 = NULL;
447 struct in_addr *a4 = NULL;
448 struct addrinfo *res;
449 struct list_node *entry;
450 struct clsrvconf *conf;
452 if (addr->sa_family == AF_INET6) {
453 sa6 = (struct sockaddr_in6 *)addr;
454 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
455 a4 = (struct in_addr *)&sa6->sin6_addr.s6_addr[12];
459 a4 = &((struct sockaddr_in *)addr)->sin_addr;
461 for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
462 conf = (struct clsrvconf *)entry->data;
463 if (conf->type == type) {
464 if (conf->prefixlen == 255) {
465 for (res = conf->addrinfo; res; res = res->ai_next)
466 if ((a4 && res->ai_family == AF_INET &&
467 !memcmp(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, 4)) ||
468 (sa6 && res->ai_family == AF_INET6 &&
469 !memcmp(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 16))) {
475 res = conf->addrinfo;
477 ((a4 && res->ai_family == AF_INET &&
478 prefixmatch(a4, &((struct sockaddr_in *)res->ai_addr)->sin_addr, conf->prefixlen)) ||
479 (sa6 && res->ai_family == AF_INET6 &&
480 prefixmatch(&sa6->sin6_addr, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, conf->prefixlen)))) {
491 struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
492 return find_conf(type, addr, clconfs, cur);
495 struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
496 return find_conf(type, addr, srvconfs, cur);
499 /* returns next config of given type, or NULL */
500 struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
501 struct list_node *entry;
502 struct clsrvconf *conf;
504 for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
505 conf = (struct clsrvconf *)entry->data;
506 if (conf->type == type) {
515 struct queue *newqueue() {
518 q = malloc(sizeof(struct queue));
520 debugx(1, DBG_ERR, "malloc failed");
521 q->entries = list_create();
523 debugx(1, DBG_ERR, "malloc failed");
524 pthread_mutex_init(&q->mutex, NULL);
525 pthread_cond_init(&q->cond, NULL);
529 void removequeue(struct queue *q) {
530 struct list_node *entry;
534 pthread_mutex_lock(&q->mutex);
535 for (entry = list_first(q->entries); entry; entry = list_next(entry))
536 free(((struct reply *)entry)->buf);
537 list_destroy(q->entries);
538 pthread_cond_destroy(&q->cond);
539 pthread_mutex_unlock(&q->mutex);
540 pthread_mutex_destroy(&q->mutex);
544 void freebios(struct queue *q) {
547 pthread_mutex_lock(&q->mutex);
548 while ((bio = (BIO *)list_shift(q->entries)))
550 pthread_mutex_unlock(&q->mutex);
554 struct client *addclient(struct clsrvconf *conf) {
555 struct client *new = malloc(sizeof(struct client));
558 debug(DBG_ERR, "malloc failed");
561 if (!conf->clients) {
562 conf->clients = list_create();
563 if (!conf->clients) {
564 debug(DBG_ERR, "malloc failed");
569 memset(new, 0, sizeof(struct client));
571 if (conf->pdef->addclient)
572 conf->pdef->addclient(new);
574 new->replyq = newqueue();
575 list_push(conf->clients, new);
579 void removeclient(struct client *client) {
580 if (!client || !client->conf->clients)
582 removequeue(client->replyq);
583 list_removedata(client->conf->clients, client);
588 void removeclientrqs(struct client *client) {
589 struct list_node *entry;
590 struct server *server;
594 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
595 server = ((struct clsrvconf *)entry->data)->servers;
598 pthread_mutex_lock(&server->newrq_mutex);
599 for (i = 0; i < MAX_REQUESTS; i++) {
600 rq = server->requests + i;
601 if (rq->from == client)
604 pthread_mutex_unlock(&server->newrq_mutex);
608 void freeserver(struct server *server, uint8_t destroymutex) {
609 struct request *rq, *end;
614 if (server->requests) {
615 rq = server->requests;
616 for (end = rq + MAX_REQUESTS; rq < end; rq++)
618 free(server->requests);
621 freebios(server->rbios);
622 free(server->dynamiclookuparg);
624 SSL_free(server->ssl);
626 pthread_mutex_destroy(&server->lock);
627 pthread_cond_destroy(&server->newrq_cond);
628 pthread_mutex_destroy(&server->newrq_mutex);
633 int addserver(struct clsrvconf *conf) {
634 struct clsrvconf *res;
638 debug(DBG_ERR, "addserver: currently works with just one server per conf");
641 conf->servers = malloc(sizeof(struct server));
642 if (!conf->servers) {
643 debug(DBG_ERR, "malloc failed");
646 memset(conf->servers, 0, sizeof(struct server));
647 conf->servers->conf = conf;
650 if (type == RAD_DTLS)
651 conf->servers->rbios = newqueue();
653 if (!srcprotores[type]) {
654 res = resolve_hostport(type, *conf->pdef->srcaddrport, NULL);
655 srcprotores[type] = res->addrinfo;
656 res->addrinfo = NULL;
660 conf->servers->sock = -1;
661 if (conf->pdef->addserverextra)
662 conf->pdef->addserverextra(conf);
664 conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct request));
665 if (!conf->servers->requests) {
666 debug(DBG_ERR, "malloc failed");
669 if (pthread_mutex_init(&conf->servers->lock, NULL)) {
670 debug(DBG_ERR, "mutex init failed");
673 conf->servers->newrq = 0;
674 if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
675 debug(DBG_ERR, "mutex init failed");
676 pthread_mutex_destroy(&conf->servers->lock);
679 if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
680 debug(DBG_ERR, "mutex init failed");
681 pthread_mutex_destroy(&conf->servers->newrq_mutex);
682 pthread_mutex_destroy(&conf->servers->lock);
689 freeserver(conf->servers, 0);
690 conf->servers = NULL;
694 int subjectaltnameaddr(X509 *cert, int family, struct in6_addr *addr) {
695 int loc, i, l, n, r = 0;
698 STACK_OF(GENERAL_NAME) *alt;
701 debug(DBG_DBG, "subjectaltnameaddr");
703 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
707 ex = X509_get_ext(cert, loc);
708 alt = X509V3_EXT_d2i(ex);
712 n = sk_GENERAL_NAME_num(alt);
713 for (i = 0; i < n; i++) {
714 gn = sk_GENERAL_NAME_value(alt, i);
715 if (gn->type != GEN_IPADD)
718 v = (char *)ASN1_STRING_data(gn->d.ia5);
719 l = ASN1_STRING_length(gn->d.ia5);
720 if (((family == AF_INET && l == sizeof(struct in_addr)) || (family == AF_INET6 && l == sizeof(struct in6_addr)))
721 && !memcmp(v, &addr, l)) {
726 GENERAL_NAMES_free(alt);
730 int cnregexp(X509 *cert, char *exact, regex_t *regex) {
737 nm = X509_get_subject_name(cert);
740 loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
743 e = X509_NAME_get_entry(nm, loc);
744 t = X509_NAME_ENTRY_get_data(e);
745 v = (char *) ASN1_STRING_data(t);
746 l = ASN1_STRING_length(t);
750 if (l == strlen(exact) && !strncasecmp(exact, v, l))
753 s = stringcopy((char *)v, l);
755 debug(DBG_ERR, "malloc failed");
758 if (regexec(regex, s, 0, NULL, 0)) {
769 int subjectaltnameregexp(X509 *cert, int type, char *exact, regex_t *regex) {
770 int loc, i, l, n, r = 0;
773 STACK_OF(GENERAL_NAME) *alt;
776 debug(DBG_DBG, "subjectaltnameregexp");
778 loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
782 ex = X509_get_ext(cert, loc);
783 alt = X509V3_EXT_d2i(ex);
787 n = sk_GENERAL_NAME_num(alt);
788 for (i = 0; i < n; i++) {
789 gn = sk_GENERAL_NAME_value(alt, i);
790 if (gn->type != type)
793 v = (char *)ASN1_STRING_data(gn->d.ia5);
794 l = ASN1_STRING_length(gn->d.ia5);
798 printfchars(NULL, gn->type == GEN_DNS ? "dns" : "uri", NULL, v, l);
801 if (memcmp(v, exact, l))
804 s = stringcopy((char *)v, l);
806 debug(DBG_ERR, "malloc failed");
809 if (regexec(regex, s, 0, NULL, 0)) {
818 GENERAL_NAMES_free(alt);
822 X509 *verifytlscert(SSL *ssl) {
826 if (SSL_get_verify_result(ssl) != X509_V_OK) {
827 debug(DBG_ERR, "verifytlscert: basic validation failed");
828 while ((error = ERR_get_error()))
829 debug(DBG_ERR, "verifytlscert: TLS: %s", ERR_error_string(error, NULL));
833 cert = SSL_get_peer_certificate(ssl);
835 debug(DBG_ERR, "verifytlscert: failed to obtain certificate");
839 int verifyconfcert(X509 *cert, struct clsrvconf *conf) {
841 uint8_t type = 0; /* 0 for DNS, AF_INET for IPv4, AF_INET6 for IPv6 */
842 struct in6_addr addr;
844 if (conf->certnamecheck && conf->prefixlen == 255) {
845 if (inet_pton(AF_INET, conf->host, &addr))
847 else if (inet_pton(AF_INET6, conf->host, &addr))
850 r = type ? subjectaltnameaddr(cert, type, &addr) : subjectaltnameregexp(cert, GEN_DNS, conf->host, NULL);
853 debug(DBG_WARN, "verifyconfcert: No subjectaltname matching %s %s", type ? "address" : "host", conf->host);
856 debug(DBG_DBG, "verifyconfcert: Found subjectaltname matching %s %s", type ? "address" : "host", conf->host);
858 if (!cnregexp(cert, conf->host, NULL)) {
859 debug(DBG_WARN, "verifyconfcert: cn not matching host %s", conf->host);
862 debug(DBG_DBG, "verifyconfcert: Found cn matching host %s", conf->host);
865 if (conf->certcnregex) {
866 if (cnregexp(cert, NULL, conf->certcnregex) < 1) {
867 debug(DBG_WARN, "verifyconfcert: CN not matching regex");
870 debug(DBG_DBG, "verifyconfcert: CN matching regex");
872 if (conf->certuriregex) {
873 if (subjectaltnameregexp(cert, GEN_URI, NULL, conf->certuriregex) < 1) {
874 debug(DBG_WARN, "verifyconfcert: subjectaltname URI not matching regex");
877 debug(DBG_DBG, "verifyconfcert: subjectaltname URI matching regex");
882 unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
884 if (ATTRTYPE(attrs) == type)
886 length -= ATTRLEN(attrs);
887 attrs += ATTRLEN(attrs);
892 void freerqdata(struct request *rq) {
893 if (rq->origusername)
894 free(rq->origusername);
896 radmsg_free(rq->msg);
901 void sendrq(struct server *to, struct request *rq) {
904 pthread_mutex_lock(&to->newrq_mutex);
905 /* might simplify if only try nextid, might be ok */
906 for (i = to->nextid; i < MAX_REQUESTS; i++)
907 if (!to->requests[i].buf)
909 if (i == MAX_REQUESTS) {
910 for (i = 0; i < to->nextid; i++)
911 if (!to->requests[i].buf)
913 if (i == to->nextid) {
914 debug(DBG_WARN, "sendrq: no room in queue, dropping request");
920 rq->msg->id = (uint8_t)i;
921 rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
923 debug(DBG_ERR, "sendrq: radmsg2buf failed");
928 debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->host);
929 to->requests[i] = *rq;
934 debug(DBG_DBG, "sendrq: signalling client writer");
935 pthread_cond_signal(&to->newrq_cond);
939 pthread_mutex_unlock(&to->newrq_mutex);
942 void sendreply(struct client *to, struct radmsg *msg, struct sockaddr_storage *tosa, int toudpsock) {
947 buf = radmsg2buf(msg, (uint8_t *)to->conf->secret);
950 debug(DBG_ERR, "sendreply: radmsg2buf failed");
954 reply = malloc(sizeof(struct reply));
957 debug(DBG_ERR, "sendreply: malloc failed");
960 memset(reply, 0, sizeof(struct reply));
964 reply->toudpsock = toudpsock;
966 pthread_mutex_lock(&to->replyq->mutex);
968 first = list_first(to->replyq->entries) == NULL;
970 if (!list_push(to->replyq->entries, reply)) {
971 pthread_mutex_unlock(&to->replyq->mutex);
974 debug(DBG_ERR, "sendreply: malloc failed");
979 debug(DBG_DBG, "signalling server writer");
980 pthread_cond_signal(&to->replyq->cond);
982 pthread_mutex_unlock(&to->replyq->mutex);
985 int pwdencrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
986 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
987 static unsigned char first = 1;
988 static EVP_MD_CTX mdctx;
989 unsigned char hash[EVP_MAX_MD_SIZE], *input;
991 uint8_t i, offset = 0, out[128];
993 pthread_mutex_lock(&lock);
995 EVP_MD_CTX_init(&mdctx);
1001 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1002 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1003 !EVP_DigestUpdate(&mdctx, input, 16) ||
1004 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1006 pthread_mutex_unlock(&lock);
1009 for (i = 0; i < 16; i++)
1010 out[offset + i] = hash[i] ^ in[offset + i];
1011 input = out + offset - 16;
1016 memcpy(in, out, len);
1017 pthread_mutex_unlock(&lock);
1021 int pwddecrypt(uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
1022 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1023 static unsigned char first = 1;
1024 static EVP_MD_CTX mdctx;
1025 unsigned char hash[EVP_MAX_MD_SIZE], *input;
1026 unsigned int md_len;
1027 uint8_t i, offset = 0, out[128];
1029 pthread_mutex_lock(&lock);
1031 EVP_MD_CTX_init(&mdctx);
1037 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1038 !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
1039 !EVP_DigestUpdate(&mdctx, input, 16) ||
1040 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1042 pthread_mutex_unlock(&lock);
1045 for (i = 0; i < 16; i++)
1046 out[offset + i] = hash[i] ^ in[offset + i];
1047 input = in + offset;
1052 memcpy(in, out, len);
1053 pthread_mutex_unlock(&lock);
1057 int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1058 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1059 static unsigned char first = 1;
1060 static EVP_MD_CTX mdctx;
1061 unsigned char hash[EVP_MAX_MD_SIZE];
1062 unsigned int md_len;
1065 pthread_mutex_lock(&lock);
1067 EVP_MD_CTX_init(&mdctx);
1072 printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
1073 printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
1074 printfchars(NULL, "msppencrypt in", "%02x ", text, len);
1077 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1078 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1079 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1080 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1081 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1082 pthread_mutex_unlock(&lock);
1087 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1090 for (i = 0; i < 16; i++)
1093 for (offset = 16; offset < len; offset += 16) {
1095 printf("text + offset - 16 c(%d): ", offset / 16);
1096 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1098 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1099 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1100 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1101 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1103 pthread_mutex_unlock(&lock);
1107 printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
1110 for (i = 0; i < 16; i++)
1111 text[offset + i] ^= hash[i];
1115 printfchars(NULL, "msppencrypt out", "%02x ", text, len);
1118 pthread_mutex_unlock(&lock);
1122 int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
1123 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
1124 static unsigned char first = 1;
1125 static EVP_MD_CTX mdctx;
1126 unsigned char hash[EVP_MAX_MD_SIZE];
1127 unsigned int md_len;
1131 pthread_mutex_lock(&lock);
1133 EVP_MD_CTX_init(&mdctx);
1138 printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
1139 printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
1140 printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
1143 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1144 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1145 !EVP_DigestUpdate(&mdctx, auth, 16) ||
1146 !EVP_DigestUpdate(&mdctx, salt, 2) ||
1147 !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
1148 pthread_mutex_unlock(&lock);
1153 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1156 for (i = 0; i < 16; i++)
1157 plain[i] = text[i] ^ hash[i];
1159 for (offset = 16; offset < len; offset += 16) {
1161 printf("text + offset - 16 c(%d): ", offset / 16);
1162 printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
1164 if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
1165 !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
1166 !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
1167 !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
1169 pthread_mutex_unlock(&lock);
1173 printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
1176 for (i = 0; i < 16; i++)
1177 plain[offset + i] = text[offset + i] ^ hash[i];
1180 memcpy(text, plain, len);
1182 printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
1185 pthread_mutex_unlock(&lock);
1189 struct realm *id2realm(struct list *realmlist, char *id) {
1190 struct list_node *entry;
1191 struct realm *realm, *subrealm = NULL;
1193 /* need to do locking for subrealms and check subrealm timers */
1194 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1195 realm = (struct realm *)entry->data;
1196 if (!regexec(&realm->regex, id, 0, NULL, 0)) {
1197 pthread_mutex_lock(&realm->subrealms_mutex);
1198 if (realm->subrealms)
1199 subrealm = id2realm(realm->subrealms, id);
1200 pthread_mutex_unlock(&realm->subrealms_mutex);
1201 return subrealm ? subrealm : realm;
1207 /* helper function, only used by removeserversubrealms() */
1208 void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1209 struct list_node *entry;
1210 struct realm *realm;
1212 for (entry = list_first(realmlist); entry;) {
1213 realm = (struct realm *)entry->data;
1214 entry = list_next(entry);
1215 if (realm->srvconfs) {
1216 list_removedata(realm->srvconfs, srv);
1217 if (!list_first(realm->srvconfs)) {
1218 list_destroy(realm->srvconfs);
1219 realm->srvconfs = NULL;
1222 if (realm->accsrvconfs) {
1223 list_removedata(realm->accsrvconfs, srv);
1224 if (!list_first(realm->accsrvconfs)) {
1225 list_destroy(realm->accsrvconfs);
1226 realm->accsrvconfs = NULL;
1230 /* remove subrealm if no servers */
1231 if (!realm->srvconfs && !realm->accsrvconfs) {
1232 list_removedata(realmlist, realm);
1238 void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
1239 struct list_node *entry;
1240 struct realm *realm;
1242 for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
1243 realm = (struct realm *)entry->data;
1244 pthread_mutex_lock(&realm->subrealms_mutex);
1245 if (realm->subrealms) {
1246 _internal_removeserversubrealms(realm->subrealms, srv);
1247 if (!list_first(realm->subrealms)) {
1248 list_destroy(realm->subrealms);
1249 realm->subrealms = NULL;
1252 pthread_mutex_unlock(&realm->subrealms_mutex);
1256 int rqinqueue(struct server *to, struct client *from, uint8_t id, uint8_t code) {
1257 struct request *rq = to->requests, *end;
1259 pthread_mutex_lock(&to->newrq_mutex);
1260 for (end = rq + MAX_REQUESTS; rq < end; rq++)
1261 if (rq->buf && !rq->received && rq->origid == id && rq->from == from && *rq->buf == code)
1263 pthread_mutex_unlock(&to->newrq_mutex);
1268 int attrvalidate(unsigned char *attrs, int length) {
1269 while (length > 1) {
1270 if (ATTRLEN(attrs) < 2) {
1271 debug(DBG_WARN, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
1274 length -= ATTRLEN(attrs);
1276 debug(DBG_WARN, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
1279 attrs += ATTRLEN(attrs);
1282 debug(DBG_WARN, "attrvalidate: malformed packet? remaining byte after last attribute");
1286 int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
1287 if (len < 16 || len > 128 || len % 16) {
1288 debug(DBG_WARN, "pwdrecrypt: invalid password length");
1292 if (!pwddecrypt(pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
1293 debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
1297 printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
1299 if (!pwdencrypt(pwd, len, newsecret, strlen(newsecret), newauth)) {
1300 debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
1306 int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, unsigned char *oldauth, char *newauth) {
1309 if (!msmppdecrypt(msmpp + 2, len - 2, (unsigned char *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
1310 debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
1313 if (!msmppencrypt(msmpp + 2, len - 2, (unsigned char *)newsecret, strlen(newsecret), (unsigned char *)newauth, msmpp)) {
1314 debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
1320 int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
1321 char *oldsecret, char *newsecret) {
1322 unsigned char *attr;
1324 for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
1325 debug(DBG_DBG, "msmppe: Got %s", attrtxt);
1326 if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->origauth))
1332 int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint8_t subattr) {
1336 for (; attrs[0]; attrs += 2)
1337 if (attrs[0] == vendor && attrs[1] == subattr)
1342 /* returns 1 if entire element is to be removed, else 0 */
1343 int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
1344 uint8_t alen, sublen;
1348 if (!removevendorattrs)
1351 memcpy(&vendor, attr->v, 4);
1352 vendor = ntohl(vendor);
1353 while (*removevendorattrs && *removevendorattrs != vendor)
1354 removevendorattrs += 2;
1355 if (!*removevendorattrs)
1358 if (findvendorsubattr(removevendorattrs, vendor, -1))
1359 return 1; /* remove entire vendor attribute */
1361 sublen = attr->l - 4;
1362 subattrs = attr->v + 4;
1364 if (!attrvalidate(subattrs, sublen)) {
1365 debug(DBG_WARN, "dovendorrewrite: vendor attribute validation failed, no rewrite");
1369 while (sublen > 1) {
1370 alen = ATTRLEN(subattrs);
1372 if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
1373 memmove(subattrs, subattrs + alen, sublen);
1381 void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
1382 struct list_node *n, *p;
1386 n = list_first(msg->attrs);
1388 attr = (struct tlv *)n->data;
1389 if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
1390 (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
1391 list_removedata(msg->attrs, attr);
1393 n = p ? list_next(p) : list_first(msg->attrs);
1400 int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
1401 struct list_node *n;
1404 for (n = list_first(addattrs); n; n = list_next(n)) {
1405 a = copytlv((struct tlv *)n->data);
1408 if (!radmsg_add(msg, a)) {
1416 int resizeattr(struct tlv *attr, uint8_t newlen) {
1419 if (newlen != attr->l) {
1420 newv = realloc(attr->v, newlen);
1429 int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
1430 size_t nmatch = 10, reslen = 0, start = 0;
1431 regmatch_t pmatch[10], *pfield;
1435 in = stringcopy((char *)attr->v, attr->l);
1439 if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
1444 out = modattr->replacement;
1446 for (i = start; out[i]; i++) {
1447 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1448 pfield = &pmatch[out[i + 1] - '0'];
1449 if (pfield->rm_so >= 0) {
1450 reslen += i - start + pfield->rm_eo - pfield->rm_so;
1456 reslen += i - start;
1458 debug(DBG_WARN, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
1463 if (!resizeattr(attr, reslen)) {
1470 for (i = start; out[i]; i++) {
1471 if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
1472 pfield = &pmatch[out[i + 1] - '0'];
1473 if (pfield->rm_so >= 0) {
1474 memcpy(attr->v + reslen, out + start, i - start);
1475 reslen += i - start;
1476 memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
1477 reslen += pfield->rm_eo - pfield->rm_so;
1484 memcpy(attr->v + reslen, out + start, i - start);
1488 int dorewritemod(struct radmsg *msg, struct list *modattrs) {
1489 struct list_node *n, *m;
1491 for (n = list_first(msg->attrs); n; n = list_next(n))
1492 for (m = list_first(modattrs); m; m = list_next(m))
1493 if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
1494 !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
1499 int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
1502 if (rewrite->removeattrs || rewrite->removevendorattrs)
1503 dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
1504 if (rewrite->addattrs && !dorewriteadd(msg, rewrite->addattrs))
1506 if (rewrite->modattrs && !dorewritemod(msg, rewrite->modattrs))
1511 int rewriteusername(struct request *rq, struct tlv *attr) {
1512 char *orig = (char *)tlv2str(attr);
1513 if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
1517 if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
1518 rq->origusername = (char *)orig;
1524 const char *radmsgtype2string(uint8_t code) {
1525 static const char *rad_msg_names[] = {
1526 "", "Access-Request", "Access-Accept", "Access-Reject",
1527 "Accounting-Request", "Accounting-Response", "", "",
1528 "", "", "", "Access-Challenge",
1529 "Status-Server", "Status-Client"
1531 return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
1534 void char2hex(char *h, unsigned char c) {
1535 static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
1536 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
1537 h[0] = hexdigits[c / 16];
1538 h[1] = hexdigits[c % 16];
1542 uint8_t *radattr2ascii(struct tlv *attr) {
1550 for (i = 0; i < attr->l; i++)
1551 if (attr->v[i] < 32 || attr->v[i] > 126)
1554 return (uint8_t *)stringcopy((char *)attr->v, attr->l);
1561 for (i = 0; i < attr->l; i++)
1562 if (attr->v[i] < 32 || attr->v[i] > 126) {
1564 char2hex((char *)d, attr->v[i]);
1572 void acclog(struct radmsg *msg, char *host) {
1576 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1578 debug(DBG_INFO, "acclog: accounting-request from %s without username attribute", host);
1581 username = radattr2ascii(attr);
1583 debug(DBG_INFO, "acclog: accounting-request from %s with username: %s", host, username);
1588 void respondaccounting(struct request *rq) {
1591 msg = radmsg_init(RAD_Accounting_Response, rq->msg->id, rq->msg->auth);
1593 debug(DBG_DBG, "respondaccounting: responding to %s", rq->from->conf->host);
1594 sendreply(rq->from, msg, &rq->fromsa, rq->fromudpsock);
1596 debug(DBG_ERR, "respondaccounting: malloc failed");
1599 void respondstatusserver(struct request *rq) {
1602 msg = radmsg_init(RAD_Access_Accept, rq->msg->id, rq->msg->auth);
1604 debug(DBG_DBG, "respondstatusserver: responding to %s", rq->from->conf->host);
1605 sendreply(rq->from, msg, &rq->fromsa, rq->fromudpsock);
1607 debug(DBG_ERR, "respondstatusserver: malloc failed");
1610 void respondreject(struct request *rq, char *message) {
1614 msg = radmsg_init(RAD_Access_Reject, rq->msg->id, rq->msg->auth);
1616 debug(DBG_ERR, "respondreject: malloc failed");
1619 if (message && *message) {
1620 attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
1621 if (!attr || !radmsg_add(msg, attr)) {
1624 debug(DBG_ERR, "respondreject: malloc failed");
1629 debug(DBG_DBG, "respondreject: responding to %s", rq->from->conf->host);
1630 sendreply(rq->from, msg, &rq->fromsa, rq->fromudpsock);
1633 struct clsrvconf *choosesrvconf(struct list *srvconfs) {
1634 struct list_node *entry;
1635 struct clsrvconf *server, *best = NULL, *first = NULL;
1637 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
1638 server = (struct clsrvconf *)entry->data;
1639 if (!server->servers)
1643 if (!server->servers->connectionok)
1645 if (!server->servers->lostrqs)
1651 if (server->servers->lostrqs < best->servers->lostrqs)
1654 return best ? best : first;
1657 struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
1658 struct clsrvconf *srvconf;
1659 char *id = (char *)tlv2str(username);
1663 *realm = id2realm(realms, id);
1668 debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
1669 srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
1674 if (!acc && !srvconf->servers)
1675 adddynamicrealmserver(*realm, srvconf, id);
1677 return srvconf->servers;
1680 /* returns 0 if validation/authentication fails, else 1 */
1681 int radsrv(struct request *rq) {
1682 struct radmsg *msg = NULL;
1684 uint8_t *userascii = NULL;
1685 unsigned char newauth[16];
1686 struct realm *realm = NULL;
1687 struct server *to = NULL;
1689 msg = buf2radmsg(rq->buf, (uint8_t *)rq->from->conf->secret, NULL);
1691 debug(DBG_WARN, "radsrv: message validation failed, ignoring packet");
1696 debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
1698 if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
1699 debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
1703 if (msg->code == RAD_Status_Server) {
1704 respondstatusserver(rq);
1708 /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
1710 if (rq->from->conf->rewritein && !dorewrite(msg, rq->from->conf->rewritein))
1713 attr = radmsg_gettype(msg, RAD_Attr_User_Name);
1715 if (msg->code == RAD_Accounting_Request) {
1716 acclog(msg, rq->from->conf->host);
1717 respondaccounting(rq);
1719 debug(DBG_WARN, "radsrv: ignoring access request, no username attribute");
1723 if (rq->from->conf->rewriteusername && !rewriteusername(rq, attr)) {
1724 debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
1728 userascii = radattr2ascii(attr);
1731 debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
1733 to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
1735 debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
1739 if (realm->message && msg->code == RAD_Access_Request) {
1740 debug(DBG_INFO, "radsrv: sending reject to %s for %s", rq->from->conf->host, userascii);
1741 respondreject(rq, realm->message);
1742 } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
1743 acclog(msg, rq->from->conf->host);
1744 respondaccounting(rq);
1752 if (options.loopprevention && !strcmp(rq->from->conf->name, to->conf->name)) {
1753 debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s to server %s, discarding",
1754 rq->from->conf->name, to->conf->name);
1758 if (rqinqueue(to, rq->from, msg->id, msg->code)) {
1759 debug(DBG_INFO, "radsrv: already got %s from host %s with id %d, ignoring",
1760 radmsgtype2string(msg->code), rq->from->conf->host, msg->id);
1764 if (msg->code != RAD_Accounting_Request) {
1765 if (!RAND_bytes(newauth, 16)) {
1766 debug(DBG_WARN, "radsrv: failed to generate random auth");
1772 printfchars(NULL, "auth", "%02x ", auth, 16);
1775 attr = radmsg_gettype(msg, RAD_Attr_User_Password);
1777 debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
1778 if (!pwdrecrypt(attr->v, attr->l, rq->from->conf->secret, to->conf->secret, msg->auth, newauth))
1782 attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
1784 debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
1785 if (!pwdrecrypt(attr->v, attr->l, rq->from->conf->secret, to->conf->secret, msg->auth, newauth))
1789 rq->origid = msg->id;
1790 memcpy(rq->origauth, msg->auth, 16);
1791 memcpy(msg->auth, newauth, 16);
1793 if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
1806 void replyh(struct server *server, unsigned char *buf) {
1807 struct client *from;
1810 unsigned char *subattrs;
1811 struct sockaddr_storage fromsa;
1812 uint8_t *username, *stationid;
1813 struct radmsg *msg = NULL;
1815 struct list_node *node;
1817 server->connectionok = 1;
1818 server->lostrqs = 0;
1820 rq = server->requests + buf[1];
1821 msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rq->msg->auth);
1825 debug(DBG_WARN, "replyh: message validation failed, ignoring packet");
1828 if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
1829 && msg->code != RAD_Accounting_Response) {
1830 debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
1834 debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
1836 pthread_mutex_lock(&server->newrq_mutex);
1837 if (!rq->buf || !rq->tries) {
1838 debug(DBG_INFO, "replyh: no matching request sent with this id, ignoring reply");
1843 debug(DBG_INFO, "replyh: already received, ignoring reply");
1847 gettimeofday(&server->lastrcv, NULL);
1849 if (rq->msg->code == RAD_Status_Server) {
1851 debug(DBG_DBG, "replyh: got status server response from %s", server->conf->host);
1855 gettimeofday(&server->lastreply, NULL);
1859 debug(DBG_INFO, "replyh: client gone, ignoring reply");
1863 if (server->conf->rewritein && !dorewrite(msg, rq->from->conf->rewritein)) {
1864 debug(DBG_WARN, "replyh: rewritein failed");
1869 for (node = list_first(msg->attrs); node; node = list_next(node)) {
1870 attr = (struct tlv *)node->data;
1871 if (attr->t != RAD_Attr_Vendor_Specific)
1875 if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
1878 sublen = attr->l - 4;
1879 subattrs = attr->v + 4;
1880 if (!attrvalidate(subattrs, sublen) ||
1881 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
1882 rq, server->conf->secret, from->conf->secret) ||
1883 !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
1884 rq, server->conf->secret, from->conf->secret))
1888 debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
1892 if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
1893 username = radattr2ascii(radmsg_gettype(rq->msg, RAD_Attr_User_Name));
1895 stationid = radattr2ascii(radmsg_gettype(rq->msg, RAD_Attr_Calling_Station_Id));
1897 debug(DBG_INFO, "%s for user %s stationid %s from %s",
1898 radmsgtype2string(msg->code), username, stationid, server->conf->host);
1901 debug(DBG_INFO, "%s for user %s from %s", radmsgtype2string(msg->code), username, server->conf->host);
1906 msg->id = (char)rq->origid;
1907 memcpy(msg->auth, rq->origauth, 16);
1910 printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
1913 if (rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
1914 if (!resizeattr(attr, strlen(rq->origusername))) {
1915 debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
1918 memcpy(attr->v, rq->origusername, strlen(rq->origusername));
1921 if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
1922 debug(DBG_WARN, "replyh: rewriteout failed");
1926 fromsa = rq->fromsa; /* only needed for UDP */
1927 /* once we set received = 1, rq may be reused */
1930 debug(DBG_INFO, "replyh: passing reply to client %s", from->conf->name);
1931 sendreply(from, msg, &fromsa, rq->fromudpsock);
1932 pthread_mutex_unlock(&server->newrq_mutex);
1937 pthread_mutex_unlock(&server->newrq_mutex);
1941 struct radmsg *createstatsrvmsg() {
1945 msg = radmsg_init(RAD_Status_Server, 0, NULL);
1949 attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
1954 if (!radmsg_add(msg, attr)) {
1962 /* code for removing state not finished */
1963 void *clientwr(void *arg) {
1964 struct server *server = (struct server *)arg;
1966 pthread_t clientrdth;
1967 int i, secs, dynconffail = 0;
1969 struct timeval now, laststatsrv;
1970 struct timespec timeout;
1971 struct request statsrvrq;
1972 struct clsrvconf *conf;
1974 conf = server->conf;
1976 if (server->dynamiclookuparg && !dynamicconfig(server)) {
1981 if (!conf->addrinfo && !resolvepeer(conf, 0)) {
1982 debug(DBG_WARN, "failed to resolve host %s port %s", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
1986 memset(&timeout, 0, sizeof(struct timespec));
1988 if (conf->statusserver) {
1989 gettimeofday(&server->lastrcv, NULL);
1990 gettimeofday(&laststatsrv, NULL);
1993 if (conf->pdef->connecter) {
1994 if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 6 : 0, "clientwr"))
1996 server->connectionok = 1;
1997 if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
1998 debug(DBG_ERR, "clientwr: pthread_create failed");
2002 server->connectionok = 1;
2005 pthread_mutex_lock(&server->newrq_mutex);
2006 if (!server->newrq) {
2007 gettimeofday(&now, NULL);
2008 /* random 0-7 seconds */
2009 RAND_bytes(&rnd, 1);
2011 if (conf->statusserver) {
2012 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2013 if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
2014 timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
2016 if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
2017 timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
2020 if (timeout.tv_sec > now.tv_sec)
2021 debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
2023 pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
2026 if (server->newrq) {
2027 debug(DBG_DBG, "clientwr: got new request");
2032 debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
2034 pthread_mutex_unlock(&server->newrq_mutex);
2036 for (i = 0; i < MAX_REQUESTS; i++) {
2037 if (server->clientrdgone) {
2038 pthread_join(clientrdth, NULL);
2041 pthread_mutex_lock(&server->newrq_mutex);
2042 while (i < MAX_REQUESTS && !server->requests[i].buf)
2044 if (i == MAX_REQUESTS) {
2045 pthread_mutex_unlock(&server->newrq_mutex);
2048 rq = server->requests + i;
2051 debug(DBG_DBG, "clientwr: packet %d in queue is marked as received", i);
2053 debug(DBG_DBG, "clientwr: freeing received packet %d from queue", i);
2055 /* setting this to NULL means that it can be reused */
2058 pthread_mutex_unlock(&server->newrq_mutex);
2062 gettimeofday(&now, NULL);
2063 if (now.tv_sec < rq->expiry.tv_sec) {
2064 if (!timeout.tv_sec || rq->expiry.tv_sec < timeout.tv_sec)
2065 timeout.tv_sec = rq->expiry.tv_sec;
2066 pthread_mutex_unlock(&server->newrq_mutex);
2070 if (rq->tries == (*rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
2071 debug(DBG_DBG, "clientwr: removing expired packet from queue");
2072 if (conf->statusserver) {
2073 if (*rq->buf == RAD_Status_Server) {
2074 debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->host);
2075 if (server->lostrqs < 255)
2079 debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->host);
2080 if (server->lostrqs < 255)
2084 /* setting this to NULL means that it can be reused */
2086 pthread_mutex_unlock(&server->newrq_mutex);
2089 pthread_mutex_unlock(&server->newrq_mutex);
2091 rq->expiry.tv_sec = now.tv_sec + conf->retryinterval;
2092 if (!timeout.tv_sec || rq->expiry.tv_sec < timeout.tv_sec)
2093 timeout.tv_sec = rq->expiry.tv_sec;
2095 conf->pdef->clientradput(server, server->requests[i].buf);
2097 if (conf->statusserver) {
2098 secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
2099 gettimeofday(&now, NULL);
2100 if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
2102 memset(&statsrvrq, 0, sizeof(struct request));
2103 statsrvrq.msg = createstatsrvmsg();
2104 if (statsrvrq.msg) {
2105 debug(DBG_DBG, "clientwr: sending status server to %s", conf->host);
2106 sendrq(server, &statsrvrq);
2112 conf->servers = NULL;
2113 if (server->dynamiclookuparg) {
2114 removeserversubrealms(realms, conf);
2118 freeclsrvconf(conf);
2120 freeserver(server, 1);
2121 ERR_remove_state(0);
2125 void createlistener(uint8_t type, char *arg) {
2127 struct clsrvconf *listenres;
2128 struct addrinfo *res;
2129 int s = -1, on = 1, *sp = NULL;
2131 listenres = resolve_hostport(type, arg, protodefs[type].portdefault);
2133 debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
2135 for (res = listenres->addrinfo; res; res = res->ai_next) {
2136 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
2138 debug(DBG_WARN, "createlistener: socket failed");
2141 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
2143 if (res->ai_family == AF_INET6)
2144 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
2146 if (bind(s, res->ai_addr, res->ai_addrlen)) {
2147 debug(DBG_WARN, "createlistener: bind failed");
2153 sp = malloc(sizeof(int));
2155 debugx(1, DBG_ERR, "malloc failed");
2157 if (pthread_create(&th, NULL, protodefs[type].listener, (void *)sp))
2158 debugx(1, DBG_ERR, "pthread_create failed");
2162 debugx(1, DBG_ERR, "createlistener: socket/bind failed");
2164 debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type].name,
2165 listenres->host ? listenres->host : "*", listenres->port);
2166 freeclsrvres(listenres);
2169 void createlisteners(uint8_t type, char **args) {
2173 for (i = 0; args[i]; i++)
2174 createlistener(type, args[i]);
2176 createlistener(type, NULL);
2180 void ssl_info_callback(const SSL *ssl, int where, int ret) {
2184 w = where & ~SSL_ST_MASK;
2186 if (w & SSL_ST_CONNECT)
2188 else if (w & SSL_ST_ACCEPT)
2193 if (where & SSL_CB_LOOP)
2194 debug(DBG_DBG, "%s:%s\n", s, SSL_state_string_long(ssl));
2195 else if (where & SSL_CB_ALERT) {
2196 s = (where & SSL_CB_READ) ? "read" : "write";
2197 debug(DBG_DBG, "SSL3 alert %s:%s:%s\n", s, SSL_alert_type_string_long(ret), SSL_alert_desc_string_long(ret));
2199 else if (where & SSL_CB_EXIT) {
2201 debug(DBG_DBG, "%s:failed in %s\n", s, SSL_state_string_long(ssl));
2203 debug(DBG_DBG, "%s:error in %s\n", s, SSL_state_string_long(ssl));
2208 SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
2209 SSL_CTX *ctx = NULL;
2210 STACK_OF(X509_NAME) *calist;
2213 unsigned long error;
2216 ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
2217 ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
2218 for (i = 0; i < CRYPTO_num_locks(); i++) {
2219 ssl_lock_count[i] = 0;
2220 pthread_mutex_init(&ssl_locks[i], NULL);
2222 CRYPTO_set_id_callback(ssl_thread_id);
2223 CRYPTO_set_locking_callback(ssl_locking_callback);
2225 SSL_load_error_strings();
2228 while (!RAND_status()) {
2229 time_t t = time(NULL);
2230 pid_t pid = getpid();
2231 RAND_seed((unsigned char *)&t, sizeof(time_t));
2232 RAND_seed((unsigned char *)&pid, sizeof(pid));
2238 ctx = SSL_CTX_new(TLSv1_method());
2240 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2244 ctx = SSL_CTX_new(DTLSv1_method());
2246 SSL_CTX_set_info_callback(ctx, ssl_info_callback);
2248 SSL_CTX_set_read_ahead(ctx, 1);
2252 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2256 if (conf->certkeypwd) {
2257 SSL_CTX_set_default_passwd_cb_userdata(ctx, conf->certkeypwd);
2258 SSL_CTX_set_default_passwd_cb(ctx, pem_passwd_cb);
2260 if (!SSL_CTX_use_certificate_chain_file(ctx, conf->certfile) ||
2261 !SSL_CTX_use_PrivateKey_file(ctx, conf->certkeyfile, SSL_FILETYPE_PEM) ||
2262 !SSL_CTX_check_private_key(ctx) ||
2263 !SSL_CTX_load_verify_locations(ctx, conf->cacertfile, conf->cacertpath)) {
2264 while ((error = ERR_get_error()))
2265 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2266 debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
2271 calist = conf->cacertfile ? SSL_load_client_CA_file(conf->cacertfile) : NULL;
2272 if (!conf->cacertfile || calist) {
2273 if (conf->cacertpath) {
2275 calist = sk_X509_NAME_new_null();
2276 if (!SSL_add_dir_cert_subjects_to_stack(calist, conf->cacertpath)) {
2277 sk_X509_NAME_free(calist);
2283 while ((error = ERR_get_error()))
2284 debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
2285 debug(DBG_ERR, "tlscreatectx: Error adding CA subjects in TLS context %s", conf->name);
2289 ERR_clear_error(); /* add_dir_cert_subj returns errors on success */
2290 SSL_CTX_set_client_CA_list(ctx, calist);
2292 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
2293 SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
2295 if (conf->crlcheck) {
2296 x509_s = SSL_CTX_get_cert_store(ctx);
2297 X509_STORE_set_flags(x509_s, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL);
2300 debug(DBG_DBG, "tlscreatectx: created TLS context %s", conf->name);
2304 SSL_CTX *tlsgetctx(uint8_t type, char *alt1, char *alt2) {
2307 t = hash_read(tlsconfs, alt1, strlen(alt1));
2309 t = hash_read(tlsconfs, alt2, strlen(alt2));
2317 t->tlsctx = tlscreatectx(RAD_TLS, t);
2321 t->dtlsctx = tlscreatectx(RAD_DTLS, t);
2327 struct list *addsrvconfs(char *value, char **names) {
2328 struct list *conflist;
2330 struct list_node *entry;
2331 struct clsrvconf *conf = NULL;
2333 if (!names || !*names)
2336 conflist = list_create();
2338 debug(DBG_ERR, "malloc failed");
2342 for (n = 0; names[n]; n++) {
2343 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
2344 conf = (struct clsrvconf *)entry->data;
2345 if (!strcasecmp(names[n], conf->name))
2349 debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
2350 list_destroy(conflist);
2353 if (!list_push(conflist, conf)) {
2354 debug(DBG_ERR, "malloc failed");
2355 list_destroy(conflist);
2358 debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
2363 void freerealm(struct realm *realm) {
2367 free(realm->message);
2368 regfree(&realm->regex);
2369 pthread_mutex_destroy(&realm->subrealms_mutex);
2370 if (realm->subrealms)
2371 list_destroy(realm->subrealms);
2372 if (realm->srvconfs) {
2373 /* emptying list without freeing data */
2374 while (list_shift(realm->srvconfs));
2375 list_destroy(realm->srvconfs);
2377 if (realm->accsrvconfs) {
2378 /* emptying list without freeing data */
2379 while (list_shift(realm->accsrvconfs));
2380 list_destroy(realm->accsrvconfs);
2385 struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
2387 struct realm *realm;
2388 char *s, *regex = NULL;
2390 if (*value == '/') {
2391 /* regexp, remove optional trailing / if present */
2392 if (value[strlen(value) - 1] == '/')
2393 value[strlen(value) - 1] = '\0';
2395 /* not a regexp, let us make it one */
2396 if (*value == '*' && !value[1])
2397 regex = stringcopy(".*", 0);
2399 for (n = 0, s = value; *s;)
2402 regex = malloc(strlen(value) + n + 3);
2405 for (n = 1, s = value; *s; s++) {
2415 debug(DBG_ERR, "malloc failed");
2419 debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
2422 realm = malloc(sizeof(struct realm));
2424 debug(DBG_ERR, "malloc failed");
2427 memset(realm, 0, sizeof(struct realm));
2429 if (pthread_mutex_init(&realm->subrealms_mutex, NULL)) {
2430 debug(DBG_ERR, "mutex init failed");
2436 realm->name = stringcopy(value, 0);
2438 debug(DBG_ERR, "malloc failed");
2441 if (message && strlen(message) > 253) {
2442 debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
2445 realm->message = message;
2446 realm->accresp = accresp;
2448 if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2449 debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
2453 if (servers && *servers) {
2454 realm->srvconfs = addsrvconfs(value, servers);
2455 if (!realm->srvconfs)
2459 if (accservers && *accservers) {
2460 realm->accsrvconfs = addsrvconfs(value, accservers);
2461 if (!realm->accsrvconfs)
2465 if (!list_push(realmlist, realm)) {
2466 debug(DBG_ERR, "malloc failed");
2467 pthread_mutex_destroy(&realm->subrealms_mutex);
2471 debug(DBG_DBG, "addrealm: added realm %s", value);
2481 for (n = 0; servers[n]; n++)
2486 for (n = 0; accservers[n]; n++)
2487 free(accservers[n]);
2493 void adddynamicrealmserver(struct realm *realm, struct clsrvconf *conf, char *id) {
2494 struct clsrvconf *srvconf;
2495 struct realm *newrealm = NULL;
2496 char *realmname, *s;
2499 if (!conf->dynamiclookupcommand)
2502 /* create dynamic for the realm (string after last @, exit if nothing after @ */
2503 realmname = strrchr(id, '@');
2509 for (s = realmname; *s; s++)
2510 if (*s != '.' && *s != '-' && !isalnum((int)*s))
2513 pthread_mutex_lock(&realm->subrealms_mutex);
2514 /* exit if we now already got a matching subrealm */
2515 if (id2realm(realm->subrealms, id))
2517 srvconf = malloc(sizeof(struct clsrvconf));
2519 debug(DBG_ERR, "malloc failed");
2523 if (!addserver(srvconf))
2526 if (!realm->subrealms)
2527 realm->subrealms = list_create();
2528 if (!realm->subrealms)
2530 newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, NULL, 0);
2534 /* add server and accserver to newrealm */
2535 newrealm->srvconfs = list_create();
2536 if (!newrealm->srvconfs || !list_push(newrealm->srvconfs, srvconf)) {
2537 debug(DBG_ERR, "malloc failed");
2540 newrealm->accsrvconfs = list_create();
2541 if (!newrealm->accsrvconfs || !list_push(newrealm->accsrvconfs, srvconf)) {
2542 debug(DBG_ERR, "malloc failed");
2546 srvconf->servers->dynamiclookuparg = stringcopy(realmname, 0);
2548 if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
2549 debug(DBG_ERR, "pthread_create failed");
2552 pthread_detach(clientth);
2557 list_removedata(realm->subrealms, newrealm);
2558 freerealm(newrealm);
2559 if (!list_first(realm->subrealms)) {
2560 list_destroy(realm->subrealms);
2561 realm->subrealms = NULL;
2564 freeserver(srvconf->servers, 1);
2566 debug(DBG_ERR, "failed to create dynamic server");
2569 pthread_mutex_unlock(&realm->subrealms_mutex);
2572 int dynamicconfig(struct server *server) {
2573 int ok, fd[2], status;
2575 struct clsrvconf *conf = server->conf;
2576 struct gconffile *cf = NULL;
2578 /* for now we only learn hostname/address */
2579 debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
2582 debug(DBG_ERR, "dynamicconfig: pipe error");
2587 debug(DBG_ERR, "dynamicconfig: fork error");
2591 } else if (pid == 0) {
2594 if (fd[1] != STDOUT_FILENO) {
2595 if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
2596 debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
2599 if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
2600 debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
2604 pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
2605 ok = getgenericconfig(&cf, NULL,
2606 "Server", CONF_CBK, confserver_cb, (void *)conf,
2611 if (waitpid(pid, &status, 0) < 0) {
2612 debug(DBG_ERR, "dynamicconfig: wait error");
2617 debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
2625 debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
2629 int addmatchcertattr(struct clsrvconf *conf) {
2633 if (!strncasecmp(conf->matchcertattr, "CN:/", 4)) {
2634 r = &conf->certcnregex;
2635 v = conf->matchcertattr + 4;
2636 } else if (!strncasecmp(conf->matchcertattr, "SubjectAltName:URI:/", 20)) {
2637 r = &conf->certuriregex;
2638 v = conf->matchcertattr + 20;
2643 /* regexp, remove optional trailing / if present */
2644 if (v[strlen(v) - 1] == '/')
2645 v[strlen(v) - 1] = '\0';
2649 *r = malloc(sizeof(regex_t));
2651 debug(DBG_ERR, "malloc failed");
2654 if (regcomp(*r, v, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
2657 debug(DBG_ERR, "failed to compile regular expression %s", v);
2663 /* should accept both names and numeric values, only numeric right now */
2664 uint8_t attrname2val(char *attrname) {
2667 val = atoi(attrname);
2668 return val > 0 && val < 256 ? val : 0;
2671 /* should accept both names and numeric values, only numeric right now */
2672 int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
2675 *vendor = atoi(attrname);
2676 s = strchr(attrname, ':');
2681 *type = atoi(s + 1);
2682 return *type >= 0 && *type < 256;
2685 /* should accept both names and numeric values, only numeric right now */
2686 struct tlv *extractattr(char *nameval) {
2691 s = strchr(nameval, ':');
2692 name = atoi(nameval);
2693 if (!s || name < 1 || name > 255)
2695 len = strlen(s + 1);
2698 a = malloc(sizeof(struct tlv));
2701 a->v = (uint8_t *)stringcopy(s + 1, 0);
2711 /* should accept both names and numeric values, only numeric right now */
2712 struct modattr *extractmodattr(char *nameval) {
2717 if (!strncasecmp(nameval, "User-Name:/", 11)) {
2721 s = strchr(nameval, ':');
2722 name = atoi(nameval);
2723 if (!s || name < 1 || name > 255 || s[1] != '/')
2727 /* regexp, remove optional trailing / if present */
2728 if (s[strlen(s) - 1] == '/')
2729 s[strlen(s) - 1] = '\0';
2737 m = malloc(sizeof(struct modattr));
2739 debug(DBG_ERR, "malloc failed");
2744 m->replacement = stringcopy(t, 0);
2745 if (!m->replacement) {
2747 debug(DBG_ERR, "malloc failed");
2751 m->regex = malloc(sizeof(regex_t));
2753 free(m->replacement);
2755 debug(DBG_ERR, "malloc failed");
2759 if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
2761 free(m->replacement);
2763 debug(DBG_ERR, "failed to compile regular expression %s", s);
2770 struct rewrite *getrewrite(char *alt1, char *alt2) {
2773 if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
2775 if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
2780 void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **modattrs) {
2781 struct rewrite *rewrite = NULL;
2783 uint8_t *rma = NULL;
2784 uint32_t *p, *rmva = NULL;
2785 struct list *adda = NULL, *moda = NULL;
2790 for (n = 0; rmattrs[n]; n++);
2791 rma = calloc(n + 1, sizeof(uint8_t));
2793 debugx(1, DBG_ERR, "malloc failed");
2795 for (i = 0; i < n; i++) {
2796 if (!(rma[i] = attrname2val(rmattrs[i])))
2797 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", rmattrs[i]);
2805 for (n = 0; rmvattrs[n]; n++);
2806 rmva = calloc(2 * n + 1, sizeof(uint32_t));
2808 debugx(1, DBG_ERR, "malloc failed");
2810 for (p = rmva, i = 0; i < n; i++, p += 2) {
2811 if (!vattrname2val(rmvattrs[i], p, p + 1))
2812 debugx(1, DBG_ERR, "addrewrite: invalid vendor attribute %s", rmvattrs[i]);
2820 adda = list_create();
2822 debugx(1, DBG_ERR, "malloc failed");
2823 for (i = 0; addattrs[i]; i++) {
2824 a = extractattr(addattrs[i]);
2826 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", addattrs[i]);
2828 if (!list_push(adda, a))
2829 debugx(1, DBG_ERR, "malloc failed");
2835 moda = list_create();
2837 debugx(1, DBG_ERR, "malloc failed");
2838 for (i = 0; modattrs[i]; i++) {
2839 m = extractmodattr(modattrs[i]);
2841 debugx(1, DBG_ERR, "addrewrite: invalid attribute %s", modattrs[i]);
2843 if (!list_push(moda, m))
2844 debugx(1, DBG_ERR, "malloc failed");
2849 if (rma || rmva || adda || moda) {
2850 rewrite = malloc(sizeof(struct rewrite));
2852 debugx(1, DBG_ERR, "malloc failed");
2853 rewrite->removeattrs = rma;
2854 rewrite->removevendorattrs = rmva;
2855 rewrite->addattrs = adda;
2856 rewrite->modattrs = moda;
2859 if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
2860 debugx(1, DBG_ERR, "malloc failed");
2861 debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
2864 void freeclsrvconf(struct clsrvconf *conf) {
2870 free(conf->matchcertattr);
2871 if (conf->certcnregex)
2872 regfree(conf->certcnregex);
2873 if (conf->certuriregex)
2874 regfree(conf->certuriregex);
2875 free(conf->confrewritein);
2876 free(conf->confrewriteout);
2877 if (conf->rewriteusername) {
2878 if (conf->rewriteusername->regex)
2879 regfree(conf->rewriteusername->regex);
2880 free(conf->rewriteusername->replacement);
2881 free(conf->rewriteusername);
2883 free(conf->dynamiclookupcommand);
2884 free(conf->rewritein);
2885 free(conf->rewriteout);
2887 freeaddrinfo(conf->addrinfo);
2888 /* not touching ssl_ctx, clients and servers */
2892 int mergeconfstring(char **dst, char **src) {
2901 t = stringcopy(*dst, 0);
2903 debug(DBG_ERR, "malloc failed");
2911 /* assumes dst is a shallow copy */
2912 int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
2913 if (!mergeconfstring(&dst->name, &src->name) ||
2914 !mergeconfstring(&dst->host, &src->host) ||
2915 !mergeconfstring(&dst->port, &src->port) ||
2916 !mergeconfstring(&dst->secret, &src->secret) ||
2917 !mergeconfstring(&dst->tls, &src->tls) ||
2918 !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
2919 !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
2920 !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
2921 !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
2924 dst->pdef = src->pdef;
2925 dst->statusserver = src->statusserver;
2926 dst->certnamecheck = src->certnamecheck;
2927 if (src->retryinterval != 255)
2928 dst->retryinterval = src->retryinterval;
2929 if (src->retrycount != 255)
2930 dst->retrycount = src->retrycount;
2934 int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
2935 struct clsrvconf *conf;
2936 char *conftype = NULL, *rewriteinalias = NULL;
2938 debug(DBG_DBG, "confclient_cb called for %s", block);
2940 conf = malloc(sizeof(struct clsrvconf));
2941 if (!conf || !list_push(clconfs, conf))
2942 debugx(1, DBG_ERR, "malloc failed");
2943 memset(conf, 0, sizeof(struct clsrvconf));
2944 conf->certnamecheck = 1;
2946 if (!getgenericconfig(cf, block,
2947 "type", CONF_STR, &conftype,
2948 "host", CONF_STR, &conf->host,
2949 "secret", CONF_STR, &conf->secret,
2950 "tls", CONF_STR, &conf->tls,
2951 "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
2952 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
2953 "rewrite", CONF_STR, &rewriteinalias,
2954 "rewriteIn", CONF_STR, &conf->confrewritein,
2955 "rewriteOut", CONF_STR, &conf->confrewriteout,
2956 "rewriteattribute", CONF_STR, &conf->confrewriteusername,
2959 debugx(1, DBG_ERR, "configuration error");
2961 conf->name = stringcopy(val, 0);
2963 conf->host = stringcopy(val, 0);
2964 if (!conf->name || !conf->host)
2965 debugx(1, DBG_ERR, "malloc failed");
2968 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
2969 conf->type = protoname2int(conftype);
2970 conf->pdef = &protodefs[conf->type];
2971 if (!conf->pdef->name)
2972 debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
2975 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
2976 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultclient", "default");
2978 debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
2979 if (conf->matchcertattr && !addmatchcertattr(conf))
2980 debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
2983 if (!conf->confrewritein)
2984 conf->confrewritein = rewriteinalias;
2986 free(rewriteinalias);
2987 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
2988 if (conf->confrewriteout)
2989 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
2991 if (conf->confrewriteusername) {
2992 conf->rewriteusername = extractmodattr(conf->confrewriteusername);
2993 if (!conf->rewriteusername)
2994 debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
2997 if (!resolvepeer(conf, 0))
2998 debugx(1, DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3000 if (!conf->secret) {
3001 if (!conf->pdef->secretdefault)
3002 debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3003 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3005 debugx(1, DBG_ERR, "malloc failed");
3010 int compileserverconfig(struct clsrvconf *conf, const char *block) {
3011 if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
3012 conf->ssl_ctx = conf->tls ? tlsgetctx(conf->type, conf->tls, NULL) : tlsgetctx(conf->type, "defaultserver", "default");
3013 if (!conf->ssl_ctx) {
3014 debug(DBG_ERR, "error in block %s, no tls context defined", block);
3017 if (conf->matchcertattr && !addmatchcertattr(conf)) {
3018 debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
3024 conf->port = stringcopy(conf->pdef->portdefault, 0);
3026 debug(DBG_ERR, "malloc failed");
3031 if (conf->retryinterval == 255)
3032 conf->retryinterval = protodefs[conf->type].retryintervaldefault;
3033 if (conf->retrycount == 255)
3034 conf->retrycount = protodefs[conf->type].retrycountdefault;
3036 conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
3037 if (conf->confrewriteout)
3038 conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
3040 if (!conf->secret) {
3041 if (!conf->pdef->secretdefault) {
3042 debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
3045 conf->secret = stringcopy(conf->pdef->secretdefault, 0);
3046 if (!conf->secret) {
3047 debug(DBG_ERR, "malloc failed");
3052 if (!conf->dynamiclookupcommand && !resolvepeer(conf, 0)) {
3053 debug(DBG_ERR, "failed to resolve host %s port %s, exiting", conf->host ? conf->host : "(null)", conf->port ? conf->port : "(null)");
3059 int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3060 struct clsrvconf *conf, *resconf;
3061 char *conftype = NULL, *rewriteinalias = NULL;
3062 long int retryinterval = LONG_MIN, retrycount = LONG_MIN;
3064 debug(DBG_DBG, "confserver_cb called for %s", block);
3066 conf = malloc(sizeof(struct clsrvconf));
3068 debug(DBG_ERR, "malloc failed");
3071 memset(conf, 0, sizeof(struct clsrvconf));
3072 resconf = (struct clsrvconf *)arg;
3074 conf->statusserver = resconf->statusserver;
3075 conf->certnamecheck = resconf->certnamecheck;
3077 conf->certnamecheck = 1;
3079 if (!getgenericconfig(cf, block,
3080 "type", CONF_STR, &conftype,
3081 "host", CONF_STR, &conf->host,
3082 "port", CONF_STR, &conf->port,
3083 "secret", CONF_STR, &conf->secret,
3084 "tls", CONF_STR, &conf->tls,
3085 "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
3086 "rewrite", CONF_STR, &rewriteinalias,
3087 "rewriteIn", CONF_STR, &conf->confrewritein,
3088 "rewriteOut", CONF_STR, &conf->confrewriteout,
3089 "StatusServer", CONF_BLN, &conf->statusserver,
3090 "RetryInterval", CONF_LINT, &retryinterval,
3091 "RetryCount", CONF_LINT, &retrycount,
3092 "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
3093 "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
3096 debug(DBG_ERR, "configuration error");
3100 conf->name = stringcopy(val, 0);
3102 debug(DBG_ERR, "malloc failed");
3106 conf->host = stringcopy(val, 0);
3108 debug(DBG_ERR, "malloc failed");
3114 debugx(1, DBG_ERR, "error in block %s, option type missing", block);
3115 conf->type = protoname2int(conftype);
3116 conf->pdef = &protodefs[conf->type];
3117 if (!conf->pdef->name) {
3118 debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
3124 if (!conf->confrewritein)
3125 conf->confrewritein = rewriteinalias;
3127 free(rewriteinalias);
3128 rewriteinalias = NULL;
3130 if (retryinterval != LONG_MIN) {
3131 if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
3132 debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
3135 conf->retryinterval = (uint8_t)retryinterval;
3137 conf->retryinterval = 255;
3139 if (retrycount != LONG_MIN) {
3140 if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
3141 debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
3144 conf->retrycount = (uint8_t)retrycount;
3146 conf->retrycount = 255;
3149 if (!mergesrvconf(resconf, conf))
3153 if (conf->dynamiclookupcommand) {
3154 free(conf->dynamiclookupcommand);
3155 conf->dynamiclookupcommand = NULL;
3159 if (resconf || !conf->dynamiclookupcommand) {
3160 if (!compileserverconfig(conf, block))
3167 if (!list_push(srvconfs, conf)) {
3168 debug(DBG_ERR, "malloc failed");
3175 free(rewriteinalias);
3176 freeclsrvconf(conf);
3180 int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3181 char **servers = NULL, **accservers = NULL, *msg = NULL;
3182 uint8_t accresp = 0;
3184 debug(DBG_DBG, "confrealm_cb called for %s", block);
3186 if (!getgenericconfig(cf, block,
3187 "server", CONF_MSTR, &servers,
3188 "accountingServer", CONF_MSTR, &accservers,
3189 "ReplyMessage", CONF_STR, &msg,
3190 "AccountingResponse", CONF_BLN, &accresp,
3193 debugx(1, DBG_ERR, "configuration error");
3195 addrealm(realms, val, servers, accservers, msg, accresp);
3199 int conftls_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3202 debug(DBG_DBG, "conftls_cb called for %s", block);
3204 conf = malloc(sizeof(struct tls));
3206 debug(DBG_ERR, "conftls_cb: malloc failed");
3209 memset(conf, 0, sizeof(struct tls));
3211 if (!getgenericconfig(cf, block,
3212 "CACertificateFile", CONF_STR, &conf->cacertfile,
3213 "CACertificatePath", CONF_STR, &conf->cacertpath,
3214 "CertificateFile", CONF_STR, &conf->certfile,
3215 "CertificateKeyFile", CONF_STR, &conf->certkeyfile,
3216 "CertificateKeyPassword", CONF_STR, &conf->certkeypwd,
3217 "CRLCheck", CONF_BLN, &conf->crlcheck,
3220 debug(DBG_ERR, "conftls_cb: configuration error in block %s", val);
3223 if (!conf->certfile || !conf->certkeyfile) {
3224 debug(DBG_ERR, "conftls_cb: TLSCertificateFile and TLSCertificateKeyFile must be specified in block %s", val);
3227 if (!conf->cacertfile && !conf->cacertpath) {
3228 debug(DBG_ERR, "conftls_cb: CA Certificate file or path need to be specified in block %s", val);
3232 conf->name = stringcopy(val, 0);
3234 debug(DBG_ERR, "conftls_cb: malloc failed");
3238 if (!hash_insert(tlsconfs, val, strlen(val), conf)) {
3239 debug(DBG_ERR, "conftls_cb: malloc failed");
3243 debug(DBG_DBG, "conftls_cb: added TLS block %s", val);
3247 free(conf->cacertfile);
3248 free(conf->cacertpath);
3249 free(conf->certfile);
3250 free(conf->certkeyfile);
3251 free(conf->certkeypwd);
3256 int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
3257 char **rmattrs = NULL, **rmvattrs = NULL, **addattrs = NULL, **modattrs = NULL;
3259 debug(DBG_DBG, "confrewrite_cb called for %s", block);
3261 if (!getgenericconfig(cf, block,
3262 "removeAttribute", CONF_MSTR, &rmattrs,
3263 "removeVendorAttribute", CONF_MSTR, &rmvattrs,
3264 "addAttribute", CONF_MSTR, &addattrs,
3265 "modifyAttribute", CONF_MSTR, &modattrs,
3268 debugx(1, DBG_ERR, "configuration error");
3269 addrewrite(val, rmattrs, rmvattrs, addattrs, modattrs);
3273 void getmainconfig(const char *configfile) {
3274 long int loglevel = LONG_MIN;
3275 struct gconffile *cfs;
3277 cfs = openconfigfile(configfile);
3278 memset(&options, 0, sizeof(options));
3280 clconfs = list_create();
3282 debugx(1, DBG_ERR, "malloc failed");
3284 srvconfs = list_create();
3286 debugx(1, DBG_ERR, "malloc failed");
3288 realms = list_create();
3290 debugx(1, DBG_ERR, "malloc failed");
3292 tlsconfs = hash_create();
3294 debugx(1, DBG_ERR, "malloc failed");
3296 rewriteconfs = hash_create();
3298 debugx(1, DBG_ERR, "malloc failed");
3300 if (!getgenericconfig(&cfs, NULL,
3301 "ListenUDP", CONF_MSTR, &options.listenudp,
3302 "ListenTCP", CONF_MSTR, &options.listentcp,
3303 "ListenTLS", CONF_MSTR, &options.listentls,
3304 "ListenDTLS", CONF_MSTR, &options.listendtls,
3305 "ListenAccountingUDP", CONF_MSTR, &options.listenaccudp,
3306 "SourceUDP", CONF_STR, &options.sourceudp,
3307 "SourceTCP", CONF_STR, &options.sourcetcp,
3308 "SourceTLS", CONF_STR, &options.sourcetls,
3309 "SourceDTLS", CONF_STR, &options.sourcedtls,
3310 "LogLevel", CONF_LINT, &loglevel,
3311 "LogDestination", CONF_STR, &options.logdestination,
3312 "LoopPrevention", CONF_BLN, &options.loopprevention,
3313 "Client", CONF_CBK, confclient_cb, NULL,
3314 "Server", CONF_CBK, confserver_cb, NULL,
3315 "Realm", CONF_CBK, confrealm_cb, NULL,
3316 "TLS", CONF_CBK, conftls_cb, NULL,
3317 "Rewrite", CONF_CBK, confrewrite_cb, NULL,
3320 debugx(1, DBG_ERR, "configuration error");
3322 if (loglevel != LONG_MIN) {
3323 if (loglevel < 1 || loglevel > 4)
3324 debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3 or 4", configfile, loglevel);
3325 options.loglevel = (uint8_t)loglevel;
3329 void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile) {
3332 while ((c = getopt(argc, argv, "c:d:fpv")) != -1) {
3335 *configfile = optarg;
3338 if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '4')
3339 debugx(1, DBG_ERR, "Debug level must be 1, 2, 3 or 4, not %s", optarg);
3340 *loglevel = *optarg - '0';
3349 debugx(0, DBG_ERR, "radsecproxy revision $Rev$");
3354 if (!(argc - optind))
3358 debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -p ] [ -v ]", argv[0]);
3362 int daemon(int a, int b) {
3370 for (i = 0; i < 3; i++) {
3372 open("/dev/null", O_RDWR);
3378 void *sighandler(void *arg) {
3383 sigemptyset(&sigset);
3384 sigaddset(&sigset, SIGPIPE);
3385 sigwait(&sigset, &sig);
3386 /* only get SIGPIPE right now, so could simplify below code */
3389 /* completely ignoring this */
3392 debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
3395 debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
3400 int main(int argc, char **argv) {
3403 struct list_node *entry;
3404 uint8_t foreground = 0, pretend = 0, loglevel = 0;
3405 char *configfile = NULL;
3406 struct clsrvconf *srvconf;
3409 debug_init("radsecproxy");
3410 debug_set_level(DEBUG_LEVEL);
3412 getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile);
3414 debug_set_level(loglevel);
3415 getmainconfig(configfile ? configfile : CONFIG_MAIN);
3417 options.loglevel = loglevel;
3418 else if (options.loglevel)
3419 debug_set_level(options.loglevel);
3421 debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
3422 free(options.logdestination);
3424 if (!list_first(clconfs))
3425 debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
3426 if (!list_first(realms))
3427 debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
3430 debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
3432 if (!foreground && (daemon(0, 0) < 0))
3433 debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
3435 debug(DBG_INFO, "radsecproxy revision $Rev$ starting");
3437 sigemptyset(&sigset);
3438 /* exit on all but SIGPIPE, ignore more? */
3439 sigaddset(&sigset, SIGPIPE);
3440 pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3441 pthread_create(&sigth, NULL, sighandler, NULL);
3443 for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
3444 srvconf = (struct clsrvconf *)entry->data;
3445 if (srvconf->dynamiclookupcommand)
3447 if (!addserver(srvconf))
3448 debugx(1, DBG_ERR, "failed to add server");
3449 if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
3450 (void *)(srvconf->servers)))
3451 debugx(1, DBG_ERR, "pthread_create failed");
3453 /* srcprotores for UDP no longer needed */
3454 if (srcprotores[RAD_UDP]) {
3455 freeaddrinfo(srcprotores[RAD_UDP]);
3456 srcprotores[RAD_UDP] = NULL;
3459 for (i = 0; protodefs[i].name; i++)
3460 if (protodefs[i].initextra)
3461 protodefs[i].initextra();
3463 if (find_clconf_type(RAD_TCP, NULL))
3464 createlisteners(RAD_TCP, options.listentcp);
3466 if (find_clconf_type(RAD_TLS, NULL))
3467 createlisteners(RAD_TLS, options.listentls);
3469 if (find_clconf_type(RAD_DTLS, NULL))
3470 createlisteners(RAD_DTLS, options.listendtls);
3472 if (find_clconf_type(RAD_UDP, NULL)) {
3473 createlisteners(RAD_UDP, options.listenudp);
3474 if (options.listenaccudp)
3475 createlisteners(RAD_UDP, options.listenaccudp);
3478 /* just hang around doing nothing, anything to do here? */