+++ /dev/null
-/*
- * Copyright (C) 2006-2009 Stig Venaas <venaas@uninett.no>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- */
-
-/* Code contributions from:
- *
- * Arne Schwabe <schwabe at uni-paderborn.de>
- * Maja Wolniewicz <mgw@umk.pl>
- * Simon Leinen <simon.leinen@switch.ch>
- * Stefan Winter <stefan.winter@restena.lu>
- */
-
-/* For UDP there is one server instance consisting of udpserverrd and udpserverth
- * rd is responsible for init and launching wr
- * For TLS there is a server instance that launches tlsserverrd for each TLS peer
- * each tlsserverrd launches tlsserverwr
- * For each UDP/TLS peer there is clientrd and clientwr, clientwr is responsible
- * for init and launching rd
- *
- * serverrd will receive a request, processes it and puts it in the requestq of
- * the appropriate clientwr
- * clientwr monitors its requestq and sends requests
- * clientrd looks for responses, processes them and puts them in the replyq of
- * the peer the request came from
- * serverwr monitors its reply and sends replies
- *
- * In addition to the main thread, we have:
- * If UDP peers are configured, there will be 2 + 2 * #peers UDP threads
- * If TLS peers are configured, there will initially be 2 * #peers TLS threads
- * For each TLS peer connecting to us there will be 2 more TLS threads
- * This is only for connected peers
- * Example: With 3 UDP peers and 30 TLS peers, there will be a max of
- * 1 + (2 + 2 * 3) + (2 * 30) + (2 * 30) = 129 threads
- */
-
-/* Bugs:
- * May segfault when dtls connections go down? More testing needed
- * Remove expired stuff from clients request list?
- * Multiple outgoing connections if not enough IDs? (multiple servers per conf?)
- * Useful for TCP accounting? Now we require separate server config for alt port
- */
-
-#include <signal.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <string.h>
-#include <unistd.h>
-#include <limits.h>
-#ifdef SYS_SOLARIS9
-#include <fcntl.h>
-#endif
-#include <sys/time.h>
-#include <sys/types.h>
-#include <ctype.h>
-#include <sys/wait.h>
-#include <arpa/inet.h>
-#include <regex.h>
-#include <libgen.h>
-#include <pthread.h>
-#include <errno.h>
-#include <openssl/ssl.h>
-#include <openssl/rand.h>
-#include <openssl/err.h>
-#include <openssl/md5.h>
-#include "debug.h"
-#include "list.h"
-#include "hash.h"
-#include "util.h"
-#include "hostport.h"
-#include "radsecproxy.h"
-#include "udp.h"
-#include "tcp.h"
-#include "tls.h"
-#include "dtls.h"
-
-static struct options options;
-static struct list *clconfs, *srvconfs;
-static struct list *realms;
-static struct hash *rewriteconfs;
-
-static pthread_mutex_t *ssl_locks = NULL;
-static long *ssl_lock_count;
-extern int optind;
-extern char *optarg;
-static const struct protodefs *protodefs[RAD_PROTOCOUNT];
-
-/* minimum required declarations to avoid reordering code */
-struct realm *adddynamicrealmserver(struct realm *realm, char *id);
-int dynamicconfig(struct server *server);
-int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val);
-void freerealm(struct realm *realm);
-void freeclsrvconf(struct clsrvconf *conf);
-void freerq(struct request *rq);
-void freerqoutdata(struct rqout *rqout);
-void rmclientrq(struct request *rq, uint8_t id);
-
-static const struct protodefs *(*protoinits[])(uint8_t) = { udpinit, tlsinit, tcpinit, dtlsinit };
-
-uint8_t protoname2int(const char *name) {
- uint8_t i;
-
- for (i = 0; i < RAD_PROTOCOUNT; i++)
- if (protodefs[i] && protodefs[i]->name && !strcasecmp(protodefs[i]->name, name))
- return i;
- return 255;
-}
-
-/* callbacks for making OpenSSL thread safe */
-unsigned long ssl_thread_id() {
- return (unsigned long)pthread_self();
-}
-
-void ssl_locking_callback(int mode, int type, const char *file, int line) {
- if (mode & CRYPTO_LOCK) {
- pthread_mutex_lock(&ssl_locks[type]);
- ssl_lock_count[type]++;
- } else
- pthread_mutex_unlock(&ssl_locks[type]);
-}
-
-/* returns 1 if the len first bits are equal, else 0 */
-int prefixmatch(void *a1, void *a2, uint8_t len) {
- static uint8_t mask[] = { 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
- uint8_t r, l = len / 8;
- if (l && memcmp(a1, a2, l))
- return 0;
- r = len % 8;
- if (!r)
- return 1;
- return (((uint8_t *)a1)[l] & mask[r]) == (((uint8_t *)a2)[l] & mask[r]);
-}
-
-/* returns next config with matching address, or NULL */
-struct clsrvconf *find_conf(uint8_t type, struct sockaddr *addr, struct list *confs, struct list_node **cur, uint8_t server_p) {
- struct list_node *entry;
- struct clsrvconf *conf;
-
- for (entry = (cur && *cur ? list_next(*cur) : list_first(confs)); entry; entry = list_next(entry)) {
- conf = (struct clsrvconf *)entry->data;
- if (conf->type == type && addressmatches(conf->hostports, addr, server_p)) {
- if (cur)
- *cur = entry;
- return conf;
- }
- }
- return NULL;
-}
-
-struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
- return find_conf(type, addr, clconfs, cur, 0);
-}
-
-struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur) {
- return find_conf(type, addr, srvconfs, cur, 1);
-}
-
-/* returns next config of given type, or NULL */
-struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur) {
- struct list_node *entry;
- struct clsrvconf *conf;
-
- for (entry = (cur && *cur ? list_next(*cur) : list_first(clconfs)); entry; entry = list_next(entry)) {
- conf = (struct clsrvconf *)entry->data;
- if (conf->type == type) {
- if (cur)
- *cur = entry;
- return conf;
- }
- }
- return NULL;
-}
-
-struct gqueue *newqueue() {
- struct gqueue *q;
-
- q = malloc(sizeof(struct gqueue));
- if (!q)
- debugx(1, DBG_ERR, "malloc failed");
- q->entries = list_create();
- if (!q->entries)
- debugx(1, DBG_ERR, "malloc failed");
- pthread_mutex_init(&q->mutex, NULL);
- pthread_cond_init(&q->cond, NULL);
- return q;
-}
-
-void removequeue(struct gqueue *q) {
- struct list_node *entry;
-
- if (!q)
- return;
- pthread_mutex_lock(&q->mutex);
- for (entry = list_first(q->entries); entry; entry = list_next(entry))
- freerq((struct request *)entry);
- list_destroy(q->entries);
- pthread_cond_destroy(&q->cond);
- pthread_mutex_unlock(&q->mutex);
- pthread_mutex_destroy(&q->mutex);
- free(q);
-}
-
-void freebios(struct gqueue *q) {
- BIO *bio;
-
- pthread_mutex_lock(&q->mutex);
- while ((bio = (BIO *)list_shift(q->entries)))
- BIO_free(bio);
- pthread_mutex_unlock(&q->mutex);
- removequeue(q);
-}
-
-struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
- struct client *new = malloc(sizeof(struct client));
-
- if (!new) {
- debug(DBG_ERR, "malloc failed");
- return NULL;
- }
-
- if (lock)
- pthread_mutex_lock(conf->lock);
- if (!conf->clients) {
- conf->clients = list_create();
- if (!conf->clients) {
- if (lock)
- pthread_mutex_unlock(conf->lock);
- debug(DBG_ERR, "malloc failed");
- return NULL;
- }
- }
-
- memset(new, 0, sizeof(struct client));
- new->conf = conf;
- if (conf->pdef->addclient)
- conf->pdef->addclient(new);
- else
- new->replyq = newqueue();
- list_push(conf->clients, new);
- if (lock)
- pthread_mutex_unlock(conf->lock);
- return new;
-}
-
-void removeclientrqs_sendrq_freeserver_lock(uint8_t wantlock) {
- static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
-
- if (wantlock)
- pthread_mutex_lock(&lock);
- else
- pthread_mutex_unlock(&lock);
-}
-
-void removeclientrqs(struct client *client) {
- struct request *rq;
- struct rqout *rqout;
- int i;
-
- removeclientrqs_sendrq_freeserver_lock(1);
- for (i = 0; i < MAX_REQUESTS; i++) {
- rq = client->rqs[i];
- if (!rq)
- continue;
- if (rq->to) {
- rqout = rq->to->requests + rq->newid;
- pthread_mutex_lock(rqout->lock);
- if (rqout->rq == rq) /* still pointing to our request */
- freerqoutdata(rqout);
- pthread_mutex_unlock(rqout->lock);
- }
- freerq(rq);
- }
- removeclientrqs_sendrq_freeserver_lock(0);
-}
-
-void removelockedclient(struct client *client) {
- struct clsrvconf *conf;
-
- conf = client->conf;
- if (conf->clients) {
- removeclientrqs(client);
- removequeue(client->replyq);
- list_removedata(conf->clients, client);
- free(client->addr);
- free(client);
- }
-}
-
-void removeclient(struct client *client) {
- struct clsrvconf *conf;
-
- if (!client)
- return;
-
- conf = client->conf;
- pthread_mutex_lock(conf->lock);
- removelockedclient(client);
- pthread_mutex_unlock(conf->lock);
-}
-
-void freeserver(struct server *server, uint8_t destroymutex) {
- struct rqout *rqout, *end;
-
- if (!server)
- return;
-
- removeclientrqs_sendrq_freeserver_lock(1);
- if (server->requests) {
- rqout = server->requests;
- for (end = rqout + MAX_REQUESTS; rqout < end; rqout++) {
- if (rqout->rq)
- rqout->rq->to = NULL;
- freerqoutdata(rqout);
- pthread_mutex_destroy(rqout->lock);
- free(rqout->lock);
- }
- free(server->requests);
- }
- if (server->rbios)
- freebios(server->rbios);
- free(server->dynamiclookuparg);
- if (server->ssl)
- SSL_free(server->ssl);
- if (destroymutex) {
- pthread_mutex_destroy(&server->lock);
- pthread_cond_destroy(&server->newrq_cond);
- pthread_mutex_destroy(&server->newrq_mutex);
- }
- removeclientrqs_sendrq_freeserver_lock(0);
- free(server);
-}
-
-int addserver(struct clsrvconf *conf) {
- int i;
-
- if (conf->servers) {
- debug(DBG_ERR, "addserver: currently works with just one server per conf");
- return 0;
- }
- conf->servers = malloc(sizeof(struct server));
- if (!conf->servers) {
- debug(DBG_ERR, "malloc failed");
- return 0;
- }
- memset(conf->servers, 0, sizeof(struct server));
- conf->servers->conf = conf;
-
-#ifdef RADPROT_DTLS
- if (conf->type == RAD_DTLS)
- conf->servers->rbios = newqueue();
-#endif
- conf->pdef->setsrcres();
-
- conf->servers->sock = -1;
- if (conf->pdef->addserverextra)
- conf->pdef->addserverextra(conf);
-
- conf->servers->requests = calloc(MAX_REQUESTS, sizeof(struct rqout));
- if (!conf->servers->requests) {
- debug(DBG_ERR, "malloc failed");
- goto errexit;
- }
- for (i = 0; i < MAX_REQUESTS; i++) {
- conf->servers->requests[i].lock = malloc(sizeof(pthread_mutex_t));
- if (!conf->servers->requests[i].lock) {
- debug(DBG_ERR, "malloc failed");
- goto errexit;
- }
- if (pthread_mutex_init(conf->servers->requests[i].lock, NULL)) {
- debugerrno(errno, DBG_ERR, "mutex init failed");
- free(conf->servers->requests[i].lock);
- conf->servers->requests[i].lock = NULL;
- goto errexit;
- }
- }
- if (pthread_mutex_init(&conf->servers->lock, NULL)) {
- debugerrno(errno, DBG_ERR, "mutex init failed");
- goto errexit;
- }
- conf->servers->newrq = 0;
- if (pthread_mutex_init(&conf->servers->newrq_mutex, NULL)) {
- debugerrno(errno, DBG_ERR, "mutex init failed");
- pthread_mutex_destroy(&conf->servers->lock);
- goto errexit;
- }
- if (pthread_cond_init(&conf->servers->newrq_cond, NULL)) {
- debugerrno(errno, DBG_ERR, "mutex init failed");
- pthread_mutex_destroy(&conf->servers->newrq_mutex);
- pthread_mutex_destroy(&conf->servers->lock);
- goto errexit;
- }
-
- return 1;
-
-errexit:
- freeserver(conf->servers, 0);
- conf->servers = NULL;
- return 0;
-}
-
-unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
- while (length > 1) {
- if (ATTRTYPE(attrs) == type)
- return attrs;
- length -= ATTRLEN(attrs);
- attrs += ATTRLEN(attrs);
- }
- return NULL;
-}
-
-struct request *newrqref(struct request *rq) {
- if (rq)
- rq->refcount++;
- return rq;
-}
-
-void freerq(struct request *rq) {
- if (!rq)
- return;
- debug(DBG_DBG, "freerq: called with refcount %d", rq->refcount);
- if (--rq->refcount)
- return;
- if (rq->origusername)
- free(rq->origusername);
- if (rq->buf)
- free(rq->buf);
- if (rq->replybuf)
- free(rq->replybuf);
- if (rq->msg)
- radmsg_free(rq->msg);
- free(rq);
-}
-
-void freerqoutdata(struct rqout *rqout) {
- if (!rqout)
- return;
- if (rqout->rq) {
- if (rqout->rq->buf) {
- free(rqout->rq->buf);
- rqout->rq->buf = NULL;
- }
- freerq(rqout->rq);
- rqout->rq = NULL;
- }
- rqout->tries = 0;
- memset(&rqout->expiry, 0, sizeof(struct timeval));
-}
-
-void sendrq(struct request *rq) {
- int i, start;
- struct server *to;
-
- removeclientrqs_sendrq_freeserver_lock(1);
- to = rq->to;
- if (!to)
- goto errexit;
-
- start = to->conf->statusserver ? 1 : 0;
- pthread_mutex_lock(&to->newrq_mutex);
- if (start && rq->msg->code == RAD_Status_Server) {
- pthread_mutex_lock(to->requests[0].lock);
- if (to->requests[0].rq) {
- pthread_mutex_unlock(to->requests[0].lock);
- debug(DBG_INFO, "sendrq: status server already in queue, dropping request");
- goto errexit;
- }
- i = 0;
- } else {
- if (!to->nextid)
- to->nextid = start;
- /* might simplify if only try nextid, might be ok */
- for (i = to->nextid; i < MAX_REQUESTS; i++) {
- if (!to->requests[i].rq) {
- pthread_mutex_lock(to->requests[i].lock);
- if (!to->requests[i].rq)
- break;
- pthread_mutex_unlock(to->requests[i].lock);
- }
- }
- if (i == MAX_REQUESTS) {
- for (i = start; i < to->nextid; i++) {
- if (!to->requests[i].rq) {
- pthread_mutex_lock(to->requests[i].lock);
- if (!to->requests[i].rq)
- break;
- pthread_mutex_unlock(to->requests[i].lock);
- }
- }
- if (i == to->nextid) {
- debug(DBG_INFO, "sendrq: no room in queue, dropping request");
- goto errexit;
- }
- }
- }
- rq->newid = (uint8_t)i;
- rq->msg->id = (uint8_t)i;
- rq->buf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
- if (!rq->buf) {
- pthread_mutex_unlock(to->requests[i].lock);
- debug(DBG_ERR, "sendrq: radmsg2buf failed");
- goto errexit;
- }
-
- debug(DBG_DBG, "sendrq: inserting packet with id %d in queue for %s", i, to->conf->name);
- to->requests[i].rq = rq;
- pthread_mutex_unlock(to->requests[i].lock);
- if (i >= start) /* i is not reserved for statusserver */
- to->nextid = i + 1;
-
- if (!to->newrq) {
- to->newrq = 1;
- debug(DBG_DBG, "sendrq: signalling client writer");
- pthread_cond_signal(&to->newrq_cond);
- }
-
- pthread_mutex_unlock(&to->newrq_mutex);
- removeclientrqs_sendrq_freeserver_lock(0);
- return;
-
-errexit:
- if (rq->from)
- rmclientrq(rq, rq->msg->id);
- freerq(rq);
- pthread_mutex_unlock(&to->newrq_mutex);
- removeclientrqs_sendrq_freeserver_lock(0);
-}
-
-void sendreply(struct request *rq) {
- uint8_t first;
- struct client *to = rq->from;
-
- if (!rq->replybuf)
- rq->replybuf = radmsg2buf(rq->msg, (uint8_t *)to->conf->secret);
- radmsg_free(rq->msg);
- rq->msg = NULL;
- if (!rq->replybuf) {
- freerq(rq);
- debug(DBG_ERR, "sendreply: radmsg2buf failed");
- return;
- }
-
- pthread_mutex_lock(&to->replyq->mutex);
- first = list_first(to->replyq->entries) == NULL;
-
- if (!list_push(to->replyq->entries, rq)) {
- pthread_mutex_unlock(&to->replyq->mutex);
- freerq(rq);
- debug(DBG_ERR, "sendreply: malloc failed");
- return;
- }
-
- if (first) {
- debug(DBG_DBG, "signalling server writer");
- pthread_cond_signal(&to->replyq->cond);
- }
- pthread_mutex_unlock(&to->replyq->mutex);
-}
-
-int pwdcrypt(char encrypt_flag, uint8_t *in, uint8_t len, char *shared, uint8_t sharedlen, uint8_t *auth) {
- static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
- static unsigned char first = 1;
- static EVP_MD_CTX mdctx;
- unsigned char hash[EVP_MAX_MD_SIZE], *input;
- unsigned int md_len;
- uint8_t i, offset = 0, out[128];
-
- pthread_mutex_lock(&lock);
- if (first) {
- EVP_MD_CTX_init(&mdctx);
- first = 0;
- }
-
- input = auth;
- for (;;) {
- if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
- !EVP_DigestUpdate(&mdctx, (uint8_t *)shared, sharedlen) ||
- !EVP_DigestUpdate(&mdctx, input, 16) ||
- !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
- md_len != 16) {
- pthread_mutex_unlock(&lock);
- return 0;
- }
- for (i = 0; i < 16; i++)
- out[offset + i] = hash[i] ^ in[offset + i];
- if (encrypt_flag)
- input = out + offset;
- else
- input = in + offset;
- offset += 16;
- if (offset == len)
- break;
- }
- memcpy(in, out, len);
- pthread_mutex_unlock(&lock);
- return 1;
-}
-
-int msmppencrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
- static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
- static unsigned char first = 1;
- static EVP_MD_CTX mdctx;
- unsigned char hash[EVP_MAX_MD_SIZE];
- unsigned int md_len;
- uint8_t i, offset;
-
- pthread_mutex_lock(&lock);
- if (first) {
- EVP_MD_CTX_init(&mdctx);
- first = 0;
- }
-
-#if 0
- printfchars(NULL, "msppencrypt auth in", "%02x ", auth, 16);
- printfchars(NULL, "msppencrypt salt in", "%02x ", salt, 2);
- printfchars(NULL, "msppencrypt in", "%02x ", text, len);
-#endif
-
- if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
- !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
- !EVP_DigestUpdate(&mdctx, auth, 16) ||
- !EVP_DigestUpdate(&mdctx, salt, 2) ||
- !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
- pthread_mutex_unlock(&lock);
- return 0;
- }
-
-#if 0
- printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
-#endif
-
- for (i = 0; i < 16; i++)
- text[i] ^= hash[i];
-
- for (offset = 16; offset < len; offset += 16) {
-#if 0
- printf("text + offset - 16 c(%d): ", offset / 16);
- printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
-#endif
- if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
- !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
- !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
- !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
- md_len != 16) {
- pthread_mutex_unlock(&lock);
- return 0;
- }
-#if 0
- printfchars(NULL, "msppencrypt hash", "%02x ", hash, 16);
-#endif
-
- for (i = 0; i < 16; i++)
- text[offset + i] ^= hash[i];
- }
-
-#if 0
- printfchars(NULL, "msppencrypt out", "%02x ", text, len);
-#endif
-
- pthread_mutex_unlock(&lock);
- return 1;
-}
-
-int msmppdecrypt(uint8_t *text, uint8_t len, uint8_t *shared, uint8_t sharedlen, uint8_t *auth, uint8_t *salt) {
- static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
- static unsigned char first = 1;
- static EVP_MD_CTX mdctx;
- unsigned char hash[EVP_MAX_MD_SIZE];
- unsigned int md_len;
- uint8_t i, offset;
- char plain[255];
-
- pthread_mutex_lock(&lock);
- if (first) {
- EVP_MD_CTX_init(&mdctx);
- first = 0;
- }
-
-#if 0
- printfchars(NULL, "msppdecrypt auth in", "%02x ", auth, 16);
- printfchars(NULL, "msppdecrypt salt in", "%02x ", salt, 2);
- printfchars(NULL, "msppdecrypt in", "%02x ", text, len);
-#endif
-
- if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
- !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
- !EVP_DigestUpdate(&mdctx, auth, 16) ||
- !EVP_DigestUpdate(&mdctx, salt, 2) ||
- !EVP_DigestFinal_ex(&mdctx, hash, &md_len)) {
- pthread_mutex_unlock(&lock);
- return 0;
- }
-
-#if 0
- printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
-#endif
-
- for (i = 0; i < 16; i++)
- plain[i] = text[i] ^ hash[i];
-
- for (offset = 16; offset < len; offset += 16) {
-#if 0
- printf("text + offset - 16 c(%d): ", offset / 16);
- printfchars(NULL, NULL, "%02x ", text + offset - 16, 16);
-#endif
- if (!EVP_DigestInit_ex(&mdctx, EVP_md5(), NULL) ||
- !EVP_DigestUpdate(&mdctx, shared, sharedlen) ||
- !EVP_DigestUpdate(&mdctx, text + offset - 16, 16) ||
- !EVP_DigestFinal_ex(&mdctx, hash, &md_len) ||
- md_len != 16) {
- pthread_mutex_unlock(&lock);
- return 0;
- }
-#if 0
- printfchars(NULL, "msppdecrypt hash", "%02x ", hash, 16);
-#endif
-
- for (i = 0; i < 16; i++)
- plain[offset + i] = text[offset + i] ^ hash[i];
- }
-
- memcpy(text, plain, len);
-#if 0
- printfchars(NULL, "msppdecrypt out", "%02x ", text, len);
-#endif
-
- pthread_mutex_unlock(&lock);
- return 1;
-}
-
-struct realm *newrealmref(struct realm *r) {
- if (r)
- r->refcount++;
- return r;
-}
-
-/* returns with lock on realm */
-struct realm *id2realm(struct list *realmlist, char *id) {
- struct list_node *entry;
- struct realm *realm, *subrealm;
-
- /* need to do locking for subrealms and check subrealm timers */
- for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
- realm = (struct realm *)entry->data;
- if (!regexec(&realm->regex, id, 0, NULL, 0)) {
- pthread_mutex_lock(&realm->mutex);
- if (realm->subrealms) {
- subrealm = id2realm(realm->subrealms, id);
- if (subrealm) {
- pthread_mutex_unlock(&realm->mutex);
- return subrealm;
- }
- }
- return newrealmref(realm);
- }
- }
- return NULL;
-}
-
-int hasdynamicserver(struct list *srvconfs) {
- struct list_node *entry;
-
- for (entry = list_first(srvconfs); entry; entry = list_next(entry))
- if (((struct clsrvconf *)entry->data)->dynamiclookupcommand)
- return 1;
- return 0;
-}
-
-/* helper function, only used by removeserversubrealms() */
-void _internal_removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
- struct list_node *entry, *entry2;
- struct realm *realm;
-
- for (entry = list_first(realmlist); entry;) {
- realm = newrealmref((struct realm *)entry->data);
- pthread_mutex_lock(&realm->mutex);
- entry = list_next(entry);
-
- if (realm->srvconfs) {
- for (entry2 = list_first(realm->srvconfs); entry2; entry2 = list_next(entry2))
- if (entry2->data == srv)
- freerealm(realm);
- list_removedata(realm->srvconfs, srv);
- }
- if (realm->accsrvconfs) {
- for (entry2 = list_first(realm->accsrvconfs); entry2; entry2 = list_next(entry2))
- if (entry2->data == srv)
- freerealm(realm);
- list_removedata(realm->accsrvconfs, srv);
- }
-
- /* remove subrealm if no dynamic servers left */
- if (!hasdynamicserver(realm->srvconfs) && !hasdynamicserver(realm->accsrvconfs)) {
- while (list_shift(realm->srvconfs))
- freerealm(realm);
- list_destroy(realm->srvconfs);
- realm->srvconfs = NULL;
- while (list_shift(realm->accsrvconfs))
- freerealm(realm);
- list_destroy(realm->accsrvconfs);
- realm->accsrvconfs = NULL;
- list_removedata(realmlist, realm);
- }
- pthread_mutex_unlock(&realm->mutex);
- freerealm(realm);
- }
-}
-
-void removeserversubrealms(struct list *realmlist, struct clsrvconf *srv) {
- struct list_node *entry;
- struct realm *realm;
-
- for (entry = list_first(realmlist); entry; entry = list_next(entry)) {
- realm = (struct realm *)entry->data;
- pthread_mutex_lock(&realm->mutex);
- if (realm->subrealms) {
- _internal_removeserversubrealms(realm->subrealms, srv);
- if (!list_first(realm->subrealms)) {
- list_destroy(realm->subrealms);
- realm->subrealms = NULL;
- }
- }
- pthread_mutex_unlock(&realm->mutex);
- }
-}
-
-int attrvalidate(unsigned char *attrs, int length) {
- while (length > 1) {
- if (ATTRLEN(attrs) < 2) {
- debug(DBG_INFO, "attrvalidate: invalid attribute length %d", ATTRLEN(attrs));
- return 0;
- }
- length -= ATTRLEN(attrs);
- if (length < 0) {
- debug(DBG_INFO, "attrvalidate: attribute length %d exceeds packet length", ATTRLEN(attrs));
- return 0;
- }
- attrs += ATTRLEN(attrs);
- }
- if (length)
- debug(DBG_INFO, "attrvalidate: malformed packet? remaining byte after last attribute");
- return 1;
-}
-
-int pwdrecrypt(uint8_t *pwd, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
- if (len < 16 || len > 128 || len % 16) {
- debug(DBG_WARN, "pwdrecrypt: invalid password length");
- return 0;
- }
-
- if (!pwdcrypt(0, pwd, len, oldsecret, strlen(oldsecret), oldauth)) {
- debug(DBG_WARN, "pwdrecrypt: cannot decrypt password");
- return 0;
- }
-#ifdef DEBUG
- printfchars(NULL, "pwdrecrypt: password", "%02x ", pwd, len);
-#endif
- if (!pwdcrypt(1, pwd, len, newsecret, strlen(newsecret), newauth)) {
- debug(DBG_WARN, "pwdrecrypt: cannot encrypt password");
- return 0;
- }
- return 1;
-}
-
-int msmpprecrypt(uint8_t *msmpp, uint8_t len, char *oldsecret, char *newsecret, uint8_t *oldauth, uint8_t *newauth) {
- if (len < 18)
- return 0;
- if (!msmppdecrypt(msmpp + 2, len - 2, (uint8_t *)oldsecret, strlen(oldsecret), oldauth, msmpp)) {
- debug(DBG_WARN, "msmpprecrypt: failed to decrypt msppe key");
- return 0;
- }
- if (!msmppencrypt(msmpp + 2, len - 2, (uint8_t *)newsecret, strlen(newsecret), newauth, msmpp)) {
- debug(DBG_WARN, "msmpprecrypt: failed to encrypt msppe key");
- return 0;
- }
- return 1;
-}
-
-int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct request *rq,
- char *oldsecret, char *newsecret) {
- unsigned char *attr;
-
- for (attr = attrs; (attr = attrget(attr, length - (attr - attrs), type)); attr += ATTRLEN(attr)) {
- debug(DBG_DBG, "msmppe: Got %s", attrtxt);
- if (!msmpprecrypt(ATTRVAL(attr), ATTRVALLEN(attr), oldsecret, newsecret, rq->buf + 4, rq->rqauth))
- return 0;
- }
- return 1;
-}
-
-int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint32_t subattr) {
- if (!attrs)
- return 0;
-
- for (; attrs[0]; attrs += 2)
- if (attrs[0] == vendor && attrs[1] == subattr)
- return 1;
- return 0;
-}
-
-/* returns 1 if entire element is to be removed, else 0 */
-int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
- uint8_t alen, sublen;
- uint32_t vendor;
- uint8_t *subattrs;
-
- if (!removevendorattrs)
- return 0;
-
- memcpy(&vendor, attr->v, 4);
- vendor = ntohl(vendor);
- while (*removevendorattrs && *removevendorattrs != vendor)
- removevendorattrs += 2;
- if (!*removevendorattrs)
- return 0;
-
- if (findvendorsubattr(removevendorattrs, vendor, 256))
- return 1; /* remove entire vendor attribute */
-
- sublen = attr->l - 4;
- subattrs = attr->v + 4;
-
- if (!attrvalidate(subattrs, sublen)) {
- debug(DBG_INFO, "dovendorrewrite: vendor attribute validation failed, no rewrite");
- return 0;
- }
-
- while (sublen > 1) {
- alen = ATTRLEN(subattrs);
- sublen -= alen;
- if (findvendorsubattr(removevendorattrs, vendor, ATTRTYPE(subattrs))) {
- memmove(subattrs, subattrs + alen, sublen);
- attr->l -= alen;
- } else
- subattrs += alen;
- }
- return 0;
-}
-
-void dorewriterm(struct radmsg *msg, uint8_t *rmattrs, uint32_t *rmvattrs) {
- struct list_node *n, *p;
- struct tlv *attr;
-
- p = NULL;
- n = list_first(msg->attrs);
- while (n) {
- attr = (struct tlv *)n->data;
- if ((rmattrs && strchr((char *)rmattrs, attr->t)) ||
- (rmvattrs && attr->t == RAD_Attr_Vendor_Specific && dovendorrewriterm(attr, rmvattrs))) {
- list_removedata(msg->attrs, attr);
- freetlv(attr);
- n = p ? list_next(p) : list_first(msg->attrs);
- } else {
- p = n;
- n = list_next(n);
- }
- }
-}
-
-int dorewriteadd(struct radmsg *msg, struct list *addattrs) {
- struct list_node *n;
- struct tlv *a;
-
- for (n = list_first(addattrs); n; n = list_next(n)) {
- a = copytlv((struct tlv *)n->data);
- if (!a)
- return 0;
- if (!radmsg_add(msg, a)) {
- freetlv(a);
- return 0;
- }
- }
- return 1;
-}
-
-int resizeattr(struct tlv *attr, uint8_t newlen) {
- uint8_t *newv;
-
- if (newlen != attr->l) {
- newv = realloc(attr->v, newlen);
- if (!newv)
- return 0;
- attr->v = newv;
- attr->l = newlen;
- }
- return 1;
-}
-
-int dorewritemodattr(struct tlv *attr, struct modattr *modattr) {
- size_t nmatch = 10, reslen = 0, start = 0;
- regmatch_t pmatch[10], *pfield;
- int i;
- char *in, *out;
-
- in = stringcopy((char *)attr->v, attr->l);
- if (!in)
- return 0;
-
- if (regexec(modattr->regex, in, nmatch, pmatch, 0)) {
- free(in);
- return 1;
- }
-
- out = modattr->replacement;
-
- for (i = start; out[i]; i++) {
- if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
- pfield = &pmatch[out[i + 1] - '0'];
- if (pfield->rm_so >= 0) {
- reslen += i - start + pfield->rm_eo - pfield->rm_so;
- start = i + 2;
- }
- i++;
- }
- }
- reslen += i - start;
- if (reslen > 253) {
- debug(DBG_INFO, "rewritten attribute length would be %d, max possible is 253, discarding message", reslen);
- free(in);
- return 0;
- }
-
- if (!resizeattr(attr, reslen)) {
- free(in);
- return 0;
- }
-
- start = 0;
- reslen = 0;
- for (i = start; out[i]; i++) {
- if (out[i] == '\\' && out[i + 1] >= '1' && out[i + 1] <= '9') {
- pfield = &pmatch[out[i + 1] - '0'];
- if (pfield->rm_so >= 0) {
- memcpy(attr->v + reslen, out + start, i - start);
- reslen += i - start;
- memcpy(attr->v + reslen, in + pfield->rm_so, pfield->rm_eo - pfield->rm_so);
- reslen += pfield->rm_eo - pfield->rm_so;
- start = i + 2;
- }
- i++;
- }
- }
-
- memcpy(attr->v + reslen, out + start, i - start);
- return 1;
-}
-
-int dorewritemod(struct radmsg *msg, struct list *modattrs) {
- struct list_node *n, *m;
-
- for (n = list_first(msg->attrs); n; n = list_next(n))
- for (m = list_first(modattrs); m; m = list_next(m))
- if (((struct tlv *)n->data)->t == ((struct modattr *)m->data)->t &&
- !dorewritemodattr((struct tlv *)n->data, (struct modattr *)m->data))
- return 0;
- return 1;
-}
-
-int dorewrite(struct radmsg *msg, struct rewrite *rewrite) {
- int rv = 1; /* Success. */
-
- if (rewrite) {
- if (rewrite->removeattrs || rewrite->removevendorattrs)
- dorewriterm(msg, rewrite->removeattrs, rewrite->removevendorattrs);
- if (rewrite->modattrs)
- if (!dorewritemod(msg, rewrite->modattrs))
- rv = 0;
- if (rewrite->addattrs)
- if (!dorewriteadd(msg, rewrite->addattrs))
- rv = 0;
- }
- return rv;
-}
-
-int rewriteusername(struct request *rq, struct tlv *attr) {
- char *orig = (char *)tlv2str(attr);
- if (!dorewritemodattr(attr, rq->from->conf->rewriteusername)) {
- free(orig);
- return 0;
- }
- if (strlen(orig) != attr->l || memcmp(orig, attr->v, attr->l))
- rq->origusername = (char *)orig;
- else
- free(orig);
- return 1;
-}
-
-/** Create vendor specific tlv with ATTR. ATTR is consumed (freed) if
- * all is well with the new tlv, i.e. if the function returns
- * !NULL. */
-static struct tlv *
-makevendortlv(uint32_t vendor, struct tlv *attr)
-{
- struct tlv *newtlv = NULL;
- uint8_t l, *v;
-
- if (!attr)
- return NULL;
- l = attr->l + 6;
- v = malloc(l);
- if (v) {
- vendor = htonl(vendor & 0x00ffffff); /* MSB=0 according to RFC 2865. */
- memcpy(v, &vendor, 4);
- tlv2buf(v + 4, attr);
- v[5] += 2; /* Vendor length increased for type and length fields. */
- newtlv = maketlv(RAD_Attr_Vendor_Specific, l, v);
- if (newtlv == NULL)
- free(v);
- else
- freetlv(attr);
- }
- return newtlv;
-}
-
-/** Ad vendor attribute with VENDOR + ATTR and push it on MSG. ATTR
- * is consumed. */
-int addvendorattr(struct radmsg *msg, uint32_t vendor, struct tlv *attr) {
- struct tlv *vattr;
-
- vattr = makevendortlv(vendor, attr);
- if (!vattr) {
- freetlv(attr);
- return 0;
- }
- if (!radmsg_add(msg, vattr)) {
- freetlv(vattr);
- return 0;
- }
- return 1;
-}
-
-void addttlattr(struct radmsg *msg, uint32_t *attrtype, uint8_t addttl) {
- uint8_t ttl[4];
- struct tlv *attr;
-
- memset(ttl, 0, 4);
- ttl[3] = addttl;
-
- if (attrtype[1] == 256) { /* not vendor */
- attr = maketlv(attrtype[0], 4, ttl);
- if (attr && !radmsg_add(msg, attr))
- freetlv(attr);
- } else {
- attr = maketlv(attrtype[1], 4, ttl);
- if (attr)
- addvendorattr(msg, attrtype[0], attr);
- }
-}
-
-int decttl(uint8_t l, uint8_t *v) {
- int i;
-
- i = l - 1;
- if (v[i]) {
- if (--v[i--])
- return 1;
- while (i >= 0 && !v[i])
- i--;
- return i >= 0;
- }
- for (i--; i >= 0 && !v[i]; i--);
- if (i < 0)
- return 0;
- v[i]--;
- while (++i < l)
- v[i] = 255;
- return 1;
-}
-
-/* returns -1 if no ttl, 0 if exceeded, 1 if ok */
-int checkttl(struct radmsg *msg, uint32_t *attrtype) {
- uint8_t alen, *subattrs;
- struct tlv *attr;
- struct list_node *node;
- uint32_t vendor;
- int sublen;
-
- if (attrtype[1] == 256) { /* not vendor */
- attr = radmsg_gettype(msg, attrtype[0]);
- if (attr)
- return decttl(attr->l, attr->v);
- } else
- for (node = list_first(msg->attrs); node; node = list_next(node)) {
- attr = (struct tlv *)node->data;
- if (attr->t != RAD_Attr_Vendor_Specific || attr->l <= 4)
- continue;
- memcpy(&vendor, attr->v, 4);
- if (ntohl(vendor) != attrtype[0])
- continue;
- sublen = attr->l - 4;
- subattrs = attr->v + 4;
- if (!attrvalidate(subattrs, sublen))
- continue;
- while (sublen > 1) {
- if (ATTRTYPE(subattrs) == attrtype[1])
- return decttl(ATTRVALLEN(subattrs), ATTRVAL(subattrs));
- alen = ATTRLEN(subattrs);
- sublen -= alen;
- subattrs += alen;
- }
- }
- return -1;
-}
-
-const char *radmsgtype2string(uint8_t code) {
- static const char *rad_msg_names[] = {
- "", "Access-Request", "Access-Accept", "Access-Reject",
- "Accounting-Request", "Accounting-Response", "", "",
- "", "", "", "Access-Challenge",
- "Status-Server", "Status-Client"
- };
- return code < 14 && *rad_msg_names[code] ? rad_msg_names[code] : "Unknown";
-}
-
-void char2hex(char *h, unsigned char c) {
- static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
- h[0] = hexdigits[c / 16];
- h[1] = hexdigits[c % 16];
- return;
-}
-
-uint8_t *radattr2ascii(struct tlv *attr) {
- int i, l;
- uint8_t *a, *d;
-
- if (!attr)
- return NULL;
-
- l = attr->l;
- for (i = 0; i < attr->l; i++)
- if (attr->v[i] < 32 || attr->v[i] > 126)
- l += 2;
- if (l == attr->l)
- return (uint8_t *)stringcopy((char *)attr->v, attr->l);
-
- a = malloc(l + 1);
- if (!a)
- return NULL;
-
- d = a;
- for (i = 0; i < attr->l; i++)
- if (attr->v[i] < 32 || attr->v[i] > 126) {
- *d++ = '%';
- char2hex((char *)d, attr->v[i]);
- d += 2;
- } else
- *d++ = attr->v[i];
- *d = '\0';
- return a;
-}
-
-void acclog(struct radmsg *msg, struct client *from) {
- struct tlv *attr;
- uint8_t *username;
-
- attr = radmsg_gettype(msg, RAD_Attr_User_Name);
- if (!attr) {
- debug(DBG_INFO, "acclog: accounting-request from client %s (%s) without username attribute", from->conf->name, addr2string(from->addr));
- return;
- }
- username = radattr2ascii(attr);
- if (username) {
- debug(DBG_INFO, "acclog: accounting-request from client %s (%s) with username: %s", from->conf->name, addr2string(from->addr), username);
-
- free(username);
- }
-}
-
-void respond(struct request *rq, uint8_t code, char *message) {
- struct radmsg *msg;
- struct tlv *attr;
-
- msg = radmsg_init(code, rq->msg->id, rq->msg->auth);
- if (!msg) {
- debug(DBG_ERR, "respond: malloc failed");
- return;
- }
- if (message && *message) {
- attr = maketlv(RAD_Attr_Reply_Message, strlen(message), message);
- if (!attr || !radmsg_add(msg, attr)) {
- freetlv(attr);
- radmsg_free(msg);
- debug(DBG_ERR, "respond: malloc failed");
- return;
- }
- }
-
- radmsg_free(rq->msg);
- rq->msg = msg;
- debug(DBG_DBG, "respond: sending %s to %s (%s)", radmsgtype2string(msg->code), rq->from->conf->name, addr2string(rq->from->addr));
- sendreply(newrqref(rq));
-}
-
-struct clsrvconf *choosesrvconf(struct list *srvconfs) {
- struct list_node *entry;
- struct clsrvconf *server, *best = NULL, *first = NULL;
-
- for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
- server = (struct clsrvconf *)entry->data;
- if (!server->servers)
- return server;
- if (!first)
- first = server;
- if (!server->servers->connectionok && !server->servers->dynstartup)
- continue;
- if (!server->servers->lostrqs)
- return server;
- if (!best) {
- best = server;
- continue;
- }
- if (server->servers->lostrqs < best->servers->lostrqs)
- best = server;
- }
- return best ? best : first;
-}
-
-/* returns with lock on realm, protects from server changes while in use by radsrv/sendrq */
-struct server *findserver(struct realm **realm, struct tlv *username, uint8_t acc) {
- struct clsrvconf *srvconf;
- struct realm *subrealm;
- struct server *server = NULL;
- char *id = (char *)tlv2str(username);
-
- if (!id)
- return NULL;
- /* returns with lock on realm */
- *realm = id2realm(realms, id);
- if (!*realm)
- goto exit;
- debug(DBG_DBG, "found matching realm: %s", (*realm)->name);
- srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
- if (srvconf && !(*realm)->parent && !srvconf->servers && srvconf->dynamiclookupcommand) {
- subrealm = adddynamicrealmserver(*realm, id);
- if (subrealm) {
- pthread_mutex_lock(&subrealm->mutex);
- pthread_mutex_unlock(&(*realm)->mutex);
- freerealm(*realm);
- *realm = subrealm;
- srvconf = choosesrvconf(acc ? (*realm)->accsrvconfs : (*realm)->srvconfs);
- }
- }
- if (srvconf)
- server = srvconf->servers;
-
-exit:
- free(id);
- return server;
-}
-
-
-struct request *newrequest() {
- struct request *rq;
-
- rq = malloc(sizeof(struct request));
- if (!rq) {
- debug(DBG_ERR, "newrequest: malloc failed");
- return NULL;
- }
- memset(rq, 0, sizeof(struct request));
- rq->refcount = 1;
- gettimeofday(&rq->created, NULL);
- return rq;
-}
-
-int addclientrq(struct request *rq) {
- struct request *r;
- struct timeval now;
-
- r = rq->from->rqs[rq->rqid];
- if (r) {
- if (rq->udpport == r->udpport && !memcmp(rq->rqauth, r->rqauth, 16)) {
- gettimeofday(&now, NULL);
- if (now.tv_sec - r->created.tv_sec < r->from->conf->dupinterval) {
- if (r->replybuf) {
- debug(DBG_INFO, "addclientrq: already sent reply to request with id %d from %s, resending", rq->rqid, addr2string(r->from->addr));
- sendreply(newrqref(r));
- } else
- debug(DBG_INFO, "addclientrq: already got request with id %d from %s, ignoring", rq->rqid, addr2string(r->from->addr));
- return 0;
- }
- }
- freerq(r);
- }
- rq->from->rqs[rq->rqid] = newrqref(rq);
- return 1;
-}
-
-void rmclientrq(struct request *rq, uint8_t id) {
- struct request *r;
-
- r = rq->from->rqs[id];
- if (r) {
- freerq(r);
- rq->from->rqs[id] = NULL;
- }
-}
-
-/* returns 0 if validation/authentication fails, else 1 */
-int radsrv(struct request *rq) {
- struct radmsg *msg = NULL;
- struct tlv *attr;
- uint8_t *userascii = NULL;
- struct realm *realm = NULL;
- struct server *to = NULL;
- struct client *from = rq->from;
- int ttlres;
-
- msg = buf2radmsg(rq->buf, (uint8_t *)from->conf->secret, NULL);
- free(rq->buf);
- rq->buf = NULL;
-
- if (!msg) {
- debug(DBG_INFO, "radsrv: message validation failed, ignoring packet");
- freerq(rq);
- return 0;
- }
-
- rq->msg = msg;
- rq->rqid = msg->id;
- memcpy(rq->rqauth, msg->auth, 16);
-
- debug(DBG_DBG, "radsrv: code %d, id %d", msg->code, msg->id);
- if (msg->code != RAD_Access_Request && msg->code != RAD_Status_Server && msg->code != RAD_Accounting_Request) {
- debug(DBG_INFO, "radsrv: server currently accepts only access-requests, accounting-requests and status-server, ignoring");
- goto exit;
- }
-
- if (!addclientrq(rq))
- goto exit;
-
- if (msg->code == RAD_Status_Server) {
- respond(rq, RAD_Access_Accept, NULL);
- goto exit;
- }
-
- /* below: code == RAD_Access_Request || code == RAD_Accounting_Request */
-
- if (from->conf->rewritein && !dorewrite(msg, from->conf->rewritein))
- goto rmclrqexit;
-
- ttlres = checkttl(msg, options.ttlattrtype);
- if (!ttlres) {
- debug(DBG_INFO, "radsrv: ignoring request from client %s (%s), ttl exceeded", from->conf->name, addr2string(from->addr));
- goto exit;
- }
-
- attr = radmsg_gettype(msg, RAD_Attr_User_Name);
- if (!attr) {
- if (msg->code == RAD_Accounting_Request) {
- acclog(msg, from);
- respond(rq, RAD_Accounting_Response, NULL);
- } else
- debug(DBG_INFO, "radsrv: ignoring access request, no username attribute");
- goto exit;
- }
-
- if (from->conf->rewriteusername && !rewriteusername(rq, attr)) {
- debug(DBG_WARN, "radsrv: username malloc failed, ignoring request");
- goto rmclrqexit;
- }
-
- userascii = radattr2ascii(attr);
- if (!userascii)
- goto rmclrqexit;
- debug(DBG_DBG, "%s with username: %s", radmsgtype2string(msg->code), userascii);
-
- /* will return with lock on the realm */
- to = findserver(&realm, attr, msg->code == RAD_Accounting_Request);
- if (!realm) {
- debug(DBG_INFO, "radsrv: ignoring request, don't know where to send it");
- goto exit;
- }
-
- if (!to) {
- if (realm->message && msg->code == RAD_Access_Request) {
- debug(DBG_INFO, "radsrv: sending reject to %s (%s) for %s", from->conf->name, addr2string(from->addr), userascii);
- respond(rq, RAD_Access_Reject, realm->message);
- } else if (realm->accresp && msg->code == RAD_Accounting_Request) {
- acclog(msg, from);
- respond(rq, RAD_Accounting_Response, NULL);
- }
- goto exit;
- }
-
- if ((to->conf->loopprevention == 1
- || (to->conf->loopprevention == UCHAR_MAX && options.loopprevention == 1))
- && !strcmp(from->conf->name, to->conf->name)) {
- debug(DBG_INFO, "radsrv: Loop prevented, not forwarding request from client %s (%s) to server %s, discarding",
- from->conf->name, addr2string(from->addr), to->conf->name);
- goto exit;
- }
-
- if (msg->code == RAD_Accounting_Request)
- memset(msg->auth, 0, 16);
- else if (!RAND_bytes(msg->auth, 16)) {
- debug(DBG_WARN, "radsrv: failed to generate random auth");
- goto rmclrqexit;
- }
-
-#ifdef DEBUG
- printfchars(NULL, "auth", "%02x ", auth, 16);
-#endif
-
- attr = radmsg_gettype(msg, RAD_Attr_User_Password);
- if (attr) {
- debug(DBG_DBG, "radsrv: found userpwdattr with value length %d", attr->l);
- if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
- goto rmclrqexit;
- }
-
- attr = radmsg_gettype(msg, RAD_Attr_Tunnel_Password);
- if (attr) {
- debug(DBG_DBG, "radsrv: found tunnelpwdattr with value length %d", attr->l);
- if (!pwdrecrypt(attr->v, attr->l, from->conf->secret, to->conf->secret, rq->rqauth, msg->auth))
- goto rmclrqexit;
- }
-
- if (to->conf->rewriteout && !dorewrite(msg, to->conf->rewriteout))
- goto rmclrqexit;
-
- if (ttlres == -1 && (options.addttl || to->conf->addttl))
- addttlattr(msg, options.ttlattrtype, to->conf->addttl ? to->conf->addttl : options.addttl);
-
- free(userascii);
- rq->to = to;
- sendrq(rq);
- pthread_mutex_unlock(&realm->mutex);
- freerealm(realm);
- return 1;
-
-rmclrqexit:
- rmclientrq(rq, msg->id);
-exit:
- freerq(rq);
- free(userascii);
- if (realm) {
- pthread_mutex_unlock(&realm->mutex);
- freerealm(realm);
- }
- return 1;
-}
-
-void replyh(struct server *server, unsigned char *buf) {
- struct client *from;
- struct rqout *rqout;
- int sublen, ttlres;
- unsigned char *subattrs;
- uint8_t *username, *stationid, *replymsg;
- struct radmsg *msg = NULL;
- struct tlv *attr;
- struct list_node *node;
-
- server->connectionok = 1;
- server->lostrqs = 0;
-
- rqout = server->requests + buf[1];
- pthread_mutex_lock(rqout->lock);
- if (!rqout->tries) {
- free(buf);
- buf = NULL;
- debug(DBG_INFO, "replyh: no outstanding request with this id, ignoring reply");
- goto errunlock;
- }
-
- msg = buf2radmsg(buf, (uint8_t *)server->conf->secret, rqout->rq->msg->auth);
- free(buf);
- buf = NULL;
- if (!msg) {
- debug(DBG_INFO, "replyh: message validation failed, ignoring packet");
- goto errunlock;
- }
- if (msg->code != RAD_Access_Accept && msg->code != RAD_Access_Reject && msg->code != RAD_Access_Challenge
- && msg->code != RAD_Accounting_Response) {
- debug(DBG_INFO, "replyh: discarding message type %s, accepting only access accept, access reject, access challenge and accounting response messages", radmsgtype2string(msg->code));
- goto errunlock;
- }
- debug(DBG_DBG, "got %s message with id %d", radmsgtype2string(msg->code), msg->id);
-
- gettimeofday(&server->lastrcv, NULL);
-
- if (rqout->rq->msg->code == RAD_Status_Server) {
- freerqoutdata(rqout);
- debug(DBG_DBG, "replyh: got status server response from %s", server->conf->name);
- goto errunlock;
- }
-
- gettimeofday(&server->lastreply, NULL);
- from = rqout->rq->from;
-
- if (server->conf->rewritein && !dorewrite(msg, from->conf->rewritein)) {
- debug(DBG_INFO, "replyh: rewritein failed");
- goto errunlock;
- }
-
- ttlres = checkttl(msg, options.ttlattrtype);
- if (!ttlres) {
- debug(DBG_INFO, "replyh: ignoring reply from server %s, ttl exceeded", server->conf->name);
- goto errunlock;
- }
-
- /* MS MPPE */
- for (node = list_first(msg->attrs); node; node = list_next(node)) {
- attr = (struct tlv *)node->data;
- if (attr->t != RAD_Attr_Vendor_Specific)
- continue;
- if (attr->l <= 4)
- break;
- if (attr->v[0] != 0 || attr->v[1] != 0 || attr->v[2] != 1 || attr->v[3] != 55) /* 311 == MS */
- continue;
-
- sublen = attr->l - 4;
- subattrs = attr->v + 4;
- if (!attrvalidate(subattrs, sublen) ||
- !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Send_Key, "MS MPPE Send Key",
- rqout->rq, server->conf->secret, from->conf->secret) ||
- !msmppe(subattrs, sublen, RAD_VS_ATTR_MS_MPPE_Recv_Key, "MS MPPE Recv Key",
- rqout->rq, server->conf->secret, from->conf->secret))
- break;
- }
- if (node) {
- debug(DBG_WARN, "replyh: MS attribute handling failed, ignoring reply");
- goto errunlock;
- }
-
- if (msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response) {
- username = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_User_Name));
- if (username) {
- stationid = radattr2ascii(radmsg_gettype(rqout->rq->msg, RAD_Attr_Calling_Station_Id));
- replymsg = radattr2ascii(radmsg_gettype(msg, RAD_Attr_Reply_Message));
- if (stationid) {
- if (replymsg) {
- debug(DBG_NOTICE,
- "%s for user %s stationid %s from %s (%s) to %s (%s)",
- radmsgtype2string(msg->code), username, stationid,
- server->conf->name, replymsg, from->conf->name,
- addr2string(from->addr));
- free(replymsg);
- } else
- debug(DBG_NOTICE,
- "%s for user %s stationid %s from %s to %s (%s)",
- radmsgtype2string(msg->code), username, stationid,
- server->conf->name, from->conf->name,
- addr2string(from->addr));
- free(stationid);
- } else {
- if (replymsg) {
- debug(DBG_NOTICE, "%s for user %s from %s (%s) to %s (%s)",
- radmsgtype2string(msg->code), username,
- server->conf->name, replymsg, from->conf->name,
- addr2string(from->addr));
- free(replymsg);
- } else
- debug(DBG_NOTICE, "%s for user %s from %s to %s (%s)",
- radmsgtype2string(msg->code), username,
- server->conf->name, from->conf->name,
- addr2string(from->addr));
- }
- free(username);
- }
- }
-
- msg->id = (char)rqout->rq->rqid;
- memcpy(msg->auth, rqout->rq->rqauth, 16);
-
-#ifdef DEBUG
- printfchars(NULL, "origauth/buf+4", "%02x ", buf + 4, 16);
-#endif
-
- if (rqout->rq->origusername && (attr = radmsg_gettype(msg, RAD_Attr_User_Name))) {
- if (!resizeattr(attr, strlen(rqout->rq->origusername))) {
- debug(DBG_WARN, "replyh: malloc failed, ignoring reply");
- goto errunlock;
- }
- memcpy(attr->v, rqout->rq->origusername, strlen(rqout->rq->origusername));
- }
-
- if (from->conf->rewriteout && !dorewrite(msg, from->conf->rewriteout)) {
- debug(DBG_WARN, "replyh: rewriteout failed");
- goto errunlock;
- }
-
- if (ttlres == -1 && (options.addttl || from->conf->addttl))
- addttlattr(msg, options.ttlattrtype, from->conf->addttl ? from->conf->addttl : options.addttl);
-
- debug(msg->code == RAD_Access_Accept || msg->code == RAD_Access_Reject || msg->code == RAD_Accounting_Response ? DBG_WARN : DBG_INFO,
- "replyh: passing %s to client %s (%s)", radmsgtype2string(msg->code), from->conf->name, addr2string(from->addr));
-
- radmsg_free(rqout->rq->msg);
- rqout->rq->msg = msg;
- sendreply(newrqref(rqout->rq));
- freerqoutdata(rqout);
- pthread_mutex_unlock(rqout->lock);
- return;
-
-errunlock:
- radmsg_free(msg);
- pthread_mutex_unlock(rqout->lock);
- return;
-}
-
-struct request *createstatsrvrq() {
- struct request *rq;
- struct tlv *attr;
-
- rq = newrequest();
- if (!rq)
- return NULL;
- rq->msg = radmsg_init(RAD_Status_Server, 0, NULL);
- if (!rq->msg)
- goto exit;
- attr = maketlv(RAD_Attr_Message_Authenticator, 16, NULL);
- if (!attr)
- goto exit;
- if (!radmsg_add(rq->msg, attr)) {
- freetlv(attr);
- goto exit;
- }
- return rq;
-
-exit:
- freerq(rq);
- return NULL;
-}
-
-/* code for removing state not finished */
-void *clientwr(void *arg) {
- struct server *server = (struct server *)arg;
- struct rqout *rqout = NULL;
- pthread_t clientrdth;
- int i, dynconffail = 0;
- time_t secs;
- uint8_t rnd;
- struct timeval now, laststatsrv;
- struct timespec timeout;
- struct request *statsrvrq;
- struct clsrvconf *conf;
-
- conf = server->conf;
-
- if (server->dynamiclookuparg && !dynamicconfig(server)) {
- dynconffail = 1;
- server->dynstartup = 0;
- sleep(900);
- goto errexit;
- }
-
- if (!resolvehostports(conf->hostports, conf->pdef->socktype)) {
- debug(DBG_WARN, "clientwr: resolve failed");
- server->dynstartup = 0;
- sleep(900);
- goto errexit;
- }
-
- memset(&timeout, 0, sizeof(struct timespec));
-
- if (conf->statusserver) {
- gettimeofday(&server->lastrcv, NULL);
- gettimeofday(&laststatsrv, NULL);
- }
-
- if (conf->pdef->connecter) {
- if (!conf->pdef->connecter(server, NULL, server->dynamiclookuparg ? 5 : 0, "clientwr")) {
- if (server->dynamiclookuparg) {
- server->dynstartup = 0;
- sleep(900);
- }
- goto errexit;
- }
- server->connectionok = 1;
- if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
- debugerrno(errno, DBG_ERR, "clientwr: pthread_create failed");
- goto errexit;
- }
- } else
- server->connectionok = 1;
- server->dynstartup = 0;
-
- for (;;) {
- pthread_mutex_lock(&server->newrq_mutex);
- if (!server->newrq) {
- gettimeofday(&now, NULL);
- /* random 0-7 seconds */
- RAND_bytes(&rnd, 1);
- rnd /= 32;
- if (conf->statusserver) {
- secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
- if (now.tv_sec - secs > STATUS_SERVER_PERIOD)
- secs = now.tv_sec;
- if (!timeout.tv_sec || timeout.tv_sec > secs + STATUS_SERVER_PERIOD + rnd)
- timeout.tv_sec = secs + STATUS_SERVER_PERIOD + rnd;
- } else {
- if (!timeout.tv_sec || timeout.tv_sec > now.tv_sec + STATUS_SERVER_PERIOD + rnd)
- timeout.tv_sec = now.tv_sec + STATUS_SERVER_PERIOD + rnd;
- }
-#if 0
- if (timeout.tv_sec > now.tv_sec)
- debug(DBG_DBG, "clientwr: waiting up to %ld secs for new request", timeout.tv_sec - now.tv_sec);
-#endif
- pthread_cond_timedwait(&server->newrq_cond, &server->newrq_mutex, &timeout);
- timeout.tv_sec = 0;
- }
- if (server->newrq) {
- debug(DBG_DBG, "clientwr: got new request");
- server->newrq = 0;
- }
-#if 0
- else
- debug(DBG_DBG, "clientwr: request timer expired, processing request queue");
-#endif
- pthread_mutex_unlock(&server->newrq_mutex);
-
- for (i = 0; i < MAX_REQUESTS; i++) {
- if (server->clientrdgone) {
- pthread_join(clientrdth, NULL);
- goto errexit;
- }
-
- for (; i < MAX_REQUESTS; i++) {
- rqout = server->requests + i;
- if (rqout->rq) {
- pthread_mutex_lock(rqout->lock);
- if (rqout->rq)
- break;
- pthread_mutex_unlock(rqout->lock);
- }
- }
-
- if (i == MAX_REQUESTS)
- break;
-
- gettimeofday(&now, NULL);
- if (now.tv_sec < rqout->expiry.tv_sec) {
- if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
- timeout.tv_sec = rqout->expiry.tv_sec;
- pthread_mutex_unlock(rqout->lock);
- continue;
- }
-
- if (rqout->tries == (*rqout->rq->buf == RAD_Status_Server ? 1 : conf->retrycount + 1)) {
- debug(DBG_DBG, "clientwr: removing expired packet from queue");
- if (conf->statusserver) {
- if (*rqout->rq->buf == RAD_Status_Server) {
- debug(DBG_WARN, "clientwr: no status server response, %s dead?", conf->name);
- if (server->lostrqs < 255)
- server->lostrqs++;
- }
- } else {
- debug(DBG_WARN, "clientwr: no server response, %s dead?", conf->name);
- if (server->lostrqs < 255)
- server->lostrqs++;
- }
- freerqoutdata(rqout);
- pthread_mutex_unlock(rqout->lock);
- continue;
- }
-
- rqout->expiry.tv_sec = now.tv_sec + conf->retryinterval;
- if (!timeout.tv_sec || rqout->expiry.tv_sec < timeout.tv_sec)
- timeout.tv_sec = rqout->expiry.tv_sec;
- rqout->tries++;
- conf->pdef->clientradput(server, rqout->rq->buf);
- pthread_mutex_unlock(rqout->lock);
- }
- if (conf->statusserver && server->connectionok) {
- secs = server->lastrcv.tv_sec > laststatsrv.tv_sec ? server->lastrcv.tv_sec : laststatsrv.tv_sec;
- gettimeofday(&now, NULL);
- if (now.tv_sec - secs > STATUS_SERVER_PERIOD) {
- laststatsrv = now;
- statsrvrq = createstatsrvrq();
- if (statsrvrq) {
- statsrvrq->to = server;
- debug(DBG_DBG, "clientwr: sending status server to %s", conf->name);
- sendrq(statsrvrq);
- }
- }
- }
- }
-errexit:
- conf->servers = NULL;
- if (server->dynamiclookuparg) {
- removeserversubrealms(realms, conf);
- if (dynconffail)
- free(conf);
- else
- freeclsrvconf(conf);
- }
- freeserver(server, 1);
- ERR_remove_state(0);
- return NULL;
-}
-
-void createlistener(uint8_t type, char *arg) {
- pthread_t th;
- struct addrinfo *res;
- int s = -1, on = 1, *sp = NULL;
- struct hostportres *hp = newhostport(arg, protodefs[type]->portdefault, 0);
-
- if (!hp || !resolvehostport(hp, protodefs[type]->socktype, 1))
- debugx(1, DBG_ERR, "createlistener: failed to resolve %s", arg);
-
- for (res = hp->addrinfo; res; res = res->ai_next) {
- s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
- if (s < 0) {
- debugerrno(errno, DBG_WARN, "createlistener: socket failed");
- continue;
- }
- setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-
- disable_DF_bit(s, res);
-
-#ifdef IPV6_V6ONLY
- if (res->ai_family == AF_INET6)
- setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
-#endif
- if (bind(s, res->ai_addr, res->ai_addrlen)) {
- debugerrno(errno, DBG_WARN, "createlistener: bind failed");
- close(s);
- s = -1;
- continue;
- }
-
- sp = malloc(sizeof(int));
- if (!sp)
- debugx(1, DBG_ERR, "malloc failed");
- *sp = s;
- if (pthread_create(&th, NULL, protodefs[type]->listener, (void *)sp))
- debugerrnox(errno, DBG_ERR, "pthread_create failed");
- pthread_detach(th);
- }
- if (!sp)
- debugx(1, DBG_ERR, "createlistener: socket/bind failed");
-
- debug(DBG_WARN, "createlistener: listening for %s on %s:%s", protodefs[type]->name, hp->host ? hp->host : "*", hp->port);
- freehostport(hp);
-}
-
-void createlisteners(uint8_t type) {
- int i;
- char **args;
-
- args = protodefs[type]->getlistenerargs();
- if (args)
- for (i = 0; args[i]; i++)
- createlistener(type, args[i]);
- else
- createlistener(type, NULL);
-}
-
-void sslinit() {
- int i;
- time_t t;
- pid_t pid;
-
- ssl_locks = calloc(CRYPTO_num_locks(), sizeof(pthread_mutex_t));
- ssl_lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
- for (i = 0; i < CRYPTO_num_locks(); i++) {
- ssl_lock_count[i] = 0;
- pthread_mutex_init(&ssl_locks[i], NULL);
- }
- CRYPTO_set_id_callback(ssl_thread_id);
- CRYPTO_set_locking_callback(ssl_locking_callback);
-
- SSL_load_error_strings();
- SSL_library_init();
-
- while (!RAND_status()) {
- t = time(NULL);
- pid = getpid();
- RAND_seed((unsigned char *)&t, sizeof(time_t));
- RAND_seed((unsigned char *)&pid, sizeof(pid));
- }
-}
-
-struct list *addsrvconfs(char *value, char **names) {
- struct list *conflist;
- int n;
- struct list_node *entry;
- struct clsrvconf *conf = NULL;
-
- if (!names || !*names)
- return NULL;
-
- conflist = list_create();
- if (!conflist) {
- debug(DBG_ERR, "malloc failed");
- return NULL;
- }
-
- for (n = 0; names[n]; n++) {
- for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
- conf = (struct clsrvconf *)entry->data;
- if (!strcasecmp(names[n], conf->name))
- break;
- }
- if (!entry) {
- debug(DBG_ERR, "addsrvconfs failed for realm %s, no server named %s", value, names[n]);
- list_destroy(conflist);
- return NULL;
- }
- if (!list_push(conflist, conf)) {
- debug(DBG_ERR, "malloc failed");
- list_destroy(conflist);
- return NULL;
- }
- debug(DBG_DBG, "addsrvconfs: added server %s for realm %s", conf->name, value);
- }
- return conflist;
-}
-
-void freerealm(struct realm *realm) {
- if (!realm)
- return;
- debug(DBG_DBG, "freerealm: called with refcount %d", realm->refcount);
- if (--realm->refcount)
- return;
-
- free(realm->name);
- free(realm->message);
- regfree(&realm->regex);
- pthread_mutex_destroy(&realm->mutex);
- /* if refcount == 0, all subrealms gone */
- list_destroy(realm->subrealms);
- /* if refcount == 0, all srvconfs gone */
- list_destroy(realm->srvconfs);
- /* if refcount == 0, all accsrvconfs gone */
- list_destroy(realm->accsrvconfs);
- freerealm(realm->parent);
- free(realm);
-}
-
-struct realm *addrealm(struct list *realmlist, char *value, char **servers, char **accservers, char *message, uint8_t accresp) {
- int n;
- struct realm *realm;
- char *s, *regex = NULL;
-
- if (*value == '/') {
- /* regexp, remove optional trailing / if present */
- if (value[strlen(value) - 1] == '/')
- value[strlen(value) - 1] = '\0';
- } else {
- /* not a regexp, let us make it one */
- if (*value == '*' && !value[1])
- regex = stringcopy(".*", 0);
- else {
- for (n = 0, s = value; *s;)
- if (*s++ == '.')
- n++;
- regex = malloc(strlen(value) + n + 3);
- if (regex) {
- regex[0] = '@';
- for (n = 1, s = value; *s; s++) {
- if (*s == '.')
- regex[n++] = '\\';
- regex[n++] = *s;
- }
- regex[n++] = '$';
- regex[n] = '\0';
- }
- }
- if (!regex) {
- debug(DBG_ERR, "malloc failed");
- realm = NULL;
- goto exit;
- }
- debug(DBG_DBG, "addrealm: constructed regexp %s from %s", regex, value);
- }
-
- realm = malloc(sizeof(struct realm));
- if (!realm) {
- debug(DBG_ERR, "malloc failed");
- goto exit;
- }
- memset(realm, 0, sizeof(struct realm));
-
- if (pthread_mutex_init(&realm->mutex, NULL)) {
- debugerrno(errno, DBG_ERR, "mutex init failed");
- free(realm);
- realm = NULL;
- goto exit;
- }
-
- realm->name = stringcopy(value, 0);
- if (!realm->name) {
- debug(DBG_ERR, "malloc failed");
- goto errexit;
- }
- if (message && strlen(message) > 253) {
- debug(DBG_ERR, "ReplyMessage can be at most 253 bytes");
- goto errexit;
- }
- realm->message = message;
- realm->accresp = accresp;
-
- if (regcomp(&realm->regex, regex ? regex : value + 1, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
- debug(DBG_ERR, "addrealm: failed to compile regular expression %s", regex ? regex : value + 1);
- goto errexit;
- }
-
- if (servers && *servers) {
- realm->srvconfs = addsrvconfs(value, servers);
- if (!realm->srvconfs)
- goto errexit;
- }
-
- if (accservers && *accservers) {
- realm->accsrvconfs = addsrvconfs(value, accservers);
- if (!realm->accsrvconfs)
- goto errexit;
- }
-
- if (!list_push(realmlist, realm)) {
- debug(DBG_ERR, "malloc failed");
- pthread_mutex_destroy(&realm->mutex);
- goto errexit;
- }
-
- debug(DBG_DBG, "addrealm: added realm %s", value);
- goto exit;
-
-errexit:
- while (list_shift(realm->srvconfs));
- while (list_shift(realm->accsrvconfs));
- freerealm(realm);
- realm = NULL;
-exit:
- free(regex);
- if (servers) {
- if (realm)
- for (n = 0; servers[n]; n++)
- newrealmref(realm);
- freegconfmstr(servers);
- }
- if (accservers) {
- if (realm)
- for (n = 0; accservers[n]; n++)
- newrealmref(realm);
- freegconfmstr(accservers);
- }
- return newrealmref(realm);
-}
-
-struct list *createsubrealmservers(struct realm *realm, struct list *srvconfs) {
- struct list_node *entry;
- struct clsrvconf *conf, *srvconf;
- struct list *subrealmservers = NULL;
- pthread_t clientth;
-
- if (list_first(srvconfs)) {
- subrealmservers = list_create();
- if (!subrealmservers)
- return NULL;
- }
-
- for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
- conf = (struct clsrvconf *)entry->data;
- if (!conf->servers && conf->dynamiclookupcommand) {
- srvconf = malloc(sizeof(struct clsrvconf));
- if (!srvconf) {
- debug(DBG_ERR, "malloc failed");
- continue;
- }
- *srvconf = *conf;
- if (addserver(srvconf)) {
- srvconf->servers->dynamiclookuparg = stringcopy(realm->name, 0);
- srvconf->servers->dynstartup = 1;
- if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
- debugerrno(errno, DBG_ERR, "pthread_create failed");
- freeserver(srvconf->servers, 1);
- srvconf->servers = NULL;
- } else
- pthread_detach(clientth);
- }
- conf = srvconf;
- }
- if (conf->servers) {
- if (list_push(subrealmservers, conf))
- newrealmref(realm);
- else
- debug(DBG_ERR, "malloc failed");
- }
- }
- return subrealmservers;
-}
-
-struct realm *adddynamicrealmserver(struct realm *realm, char *id) {
- struct realm *newrealm = NULL;
- char *realmname, *s;
-
- /* create dynamic for the realm (string after last @, exit if nothing after @ */
- realmname = strrchr(id, '@');
- if (!realmname)
- return NULL;
- realmname++;
- if (!*realmname)
- return NULL;
- for (s = realmname; *s; s++)
- if (*s != '.' && *s != '-' && !isalnum((int)*s))
- return NULL;
-
- if (!realm->subrealms)
- realm->subrealms = list_create();
- if (!realm->subrealms)
- return NULL;
-
- newrealm = addrealm(realm->subrealms, realmname, NULL, NULL, stringcopy(realm->message, 0), realm->accresp);
- if (!newrealm) {
- list_destroy(realm->subrealms);
- realm->subrealms = NULL;
- return NULL;
- }
-
- newrealm->parent = newrealmref(realm);
- /* add server and accserver to newrealm */
- newrealm->srvconfs = createsubrealmservers(newrealm, realm->srvconfs);
- newrealm->accsrvconfs = createsubrealmservers(newrealm, realm->accsrvconfs);
- return newrealm;
-}
-
-int dynamicconfig(struct server *server) {
- int ok, fd[2], status;
- pid_t pid;
- struct clsrvconf *conf = server->conf;
- struct gconffile *cf = NULL;
-
- /* for now we only learn hostname/address */
- debug(DBG_DBG, "dynamicconfig: need dynamic server config for %s", server->dynamiclookuparg);
-
- if (pipe(fd) > 0) {
- debugerrno(errno, DBG_ERR, "dynamicconfig: pipe error");
- goto errexit;
- }
- pid = fork();
- if (pid < 0) {
- debugerrno(errno, DBG_ERR, "dynamicconfig: fork error");
- close(fd[0]);
- close(fd[1]);
- goto errexit;
- } else if (pid == 0) {
- /* child */
- close(fd[0]);
- if (fd[1] != STDOUT_FILENO) {
- if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO)
- debugx(1, DBG_ERR, "dynamicconfig: dup2 error for command %s", conf->dynamiclookupcommand);
- close(fd[1]);
- }
- if (execlp(conf->dynamiclookupcommand, conf->dynamiclookupcommand, server->dynamiclookuparg, NULL) < 0)
- debugx(1, DBG_ERR, "dynamicconfig: exec error for command %s", conf->dynamiclookupcommand);
- }
-
- close(fd[1]);
- pushgconffile(&cf, fdopen(fd[0], "r"), conf->dynamiclookupcommand);
- ok = getgenericconfig(&cf, NULL,
- "Server", CONF_CBK, confserver_cb, (void *)conf,
- NULL
- );
- freegconf(&cf);
-
- if (waitpid(pid, &status, 0) < 0) {
- debugerrno(errno, DBG_ERR, "dynamicconfig: wait error");
- goto errexit;
- }
-
- if (status) {
- debug(DBG_INFO, "dynamicconfig: command exited with status %d", WEXITSTATUS(status));
- goto errexit;
- }
-
- if (ok)
- return 1;
-
-errexit:
- debug(DBG_WARN, "dynamicconfig: failed to obtain dynamic server config");
- return 0;
-}
-
-/* should accept both names and numeric values, only numeric right now */
-uint8_t attrname2val(char *attrname) {
- int val = 0;
-
- val = atoi(attrname);
- return val > 0 && val < 256 ? val : 0;
-}
-
-/* ATTRNAME is on the form vendor[:type].
- If only vendor is found, TYPE is set to 256 and 1 is returned.
- If type is >= 256, 1 is returned.
- Otherwise, 0 is returned.
-*/
-/* should accept both names and numeric values, only numeric right now */
-int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
- char *s;
-
- *vendor = atoi(attrname);
- s = strchr(attrname, ':');
- if (!s) { /* Only vendor was found. */
- *type = 256;
- return 1;
- }
- *type = atoi(s + 1);
- return *type < 256;
-}
-
-/** Extract attributes from string NAMEVAL, create a struct tlv and
- * return the tlv. If VENDOR_FLAG, NAMEVAL is on the form
- * "<vendor>:<name>:<val>" and otherwise it's "<name>:<val>". Return
- * NULL if fields are missing or if conversion fails.
- *
- * FIXME: Should accept both names and numeric values, only numeric
- * right now */
-struct tlv *extractattr(char *nameval, char vendor_flag) {
- int len, name = 0;
- int vendor = 0; /* Vendor 0 is reserved, see RFC 1700. */
- char *s, *s2;
- struct tlv *a;
-
- s = strchr(nameval, ':');
- if (!s)
- return NULL;
- name = atoi(nameval);
-
- if (vendor_flag) {
- s2 = strchr(s + 1, ':');
- if (!s2)
- return NULL;
- vendor = name;
- name = atoi(s + 1);
- s = s2;
- }
- len = strlen(s + 1);
- if (len > 253)
- return NULL;
-
- if (name < 1 || name > 255)
- return NULL;
- a = malloc(sizeof(struct tlv));
- if (!a)
- return NULL;
-
- a->v = (uint8_t *)stringcopy(s + 1, 0);
- if (!a->v) {
- free(a);
- return NULL;
- }
- a->t = name;
- a->l = len;
-
- if (vendor_flag)
- a = makevendortlv(vendor, a);
-
- return a;
-}
-
-/* should accept both names and numeric values, only numeric right now */
-struct modattr *extractmodattr(char *nameval) {
- int name = 0;
- char *s, *t;
- struct modattr *m;
-
- if (!strncasecmp(nameval, "User-Name:/", 11)) {
- s = nameval + 11;
- name = 1;
- } else {
- s = strchr(nameval, ':');
- name = atoi(nameval);
- if (!s || name < 1 || name > 255 || s[1] != '/')
- return NULL;
- s += 2;
- }
- /* regexp, remove optional trailing / if present */
- if (s[strlen(s) - 1] == '/')
- s[strlen(s) - 1] = '\0';
-
- t = strchr(s, '/');
- if (!t)
- return NULL;
- *t = '\0';
- t++;
-
- m = malloc(sizeof(struct modattr));
- if (!m) {
- debug(DBG_ERR, "malloc failed");
- return NULL;
- }
- m->t = name;
-
- m->replacement = stringcopy(t, 0);
- if (!m->replacement) {
- free(m);
- debug(DBG_ERR, "malloc failed");
- return NULL;
- }
-
- m->regex = malloc(sizeof(regex_t));
- if (!m->regex) {
- free(m->replacement);
- free(m);
- debug(DBG_ERR, "malloc failed");
- return NULL;
- }
-
- if (regcomp(m->regex, s, REG_ICASE | REG_EXTENDED)) {
- free(m->regex);
- free(m->replacement);
- free(m);
- debug(DBG_ERR, "failed to compile regular expression %s", s);
- return NULL;
- }
-
- return m;
-}
-
-struct rewrite *getrewrite(char *alt1, char *alt2) {
- struct rewrite *r;
-
- if ((r = hash_read(rewriteconfs, alt1, strlen(alt1))))
- return r;
- if ((r = hash_read(rewriteconfs, alt2, strlen(alt2))))
- return r;
- return NULL;
-}
-
-void addrewrite(char *value, char **rmattrs, char **rmvattrs, char **addattrs, char **addvattrs, char **modattrs)
-{
- struct rewrite *rewrite = NULL;
- int i, n;
- uint8_t *rma = NULL;
- uint32_t *p, *rmva = NULL;
- struct list *adda = NULL, *moda = NULL;
- struct tlv *a;
- struct modattr *m;
-
- if (rmattrs) {
- for (n = 0; rmattrs[n]; n++);
- rma = calloc(n + 1, sizeof(uint8_t));
- if (!rma)
- debugx(1, DBG_ERR, "malloc failed");
-
- for (i = 0; i < n; i++)
- if (!(rma[i] = attrname2val(rmattrs[i])))
- debugx(1, DBG_ERR, "addrewrite: removing invalid attribute %s", rmattrs[i]);
- freegconfmstr(rmattrs);
- rma[i] = 0;
- }
-
- if (rmvattrs) {
- for (n = 0; rmvattrs[n]; n++);
- rmva = calloc(2 * n + 1, sizeof(uint32_t));
- if (!rmva)
- debugx(1, DBG_ERR, "malloc failed");
-
- for (p = rmva, i = 0; i < n; i++, p += 2)
- if (!vattrname2val(rmvattrs[i], p, p + 1))
- debugx(1, DBG_ERR, "addrewrite: removing invalid vendor attribute %s", rmvattrs[i]);
- freegconfmstr(rmvattrs);
- *p = 0;
- }
-
- if (addattrs) {
- adda = list_create();
- if (!adda)
- debugx(1, DBG_ERR, "malloc failed");
- for (i = 0; addattrs[i]; i++) {
- a = extractattr(addattrs[i], 0);
- if (!a)
- debugx(1, DBG_ERR, "addrewrite: adding invalid attribute %s", addattrs[i]);
- if (!list_push(adda, a))
- debugx(1, DBG_ERR, "malloc failed");
- }
- freegconfmstr(addattrs);
- }
-
- if (addvattrs) {
- if (!adda)
- adda = list_create();
- if (!adda)
- debugx(1, DBG_ERR, "malloc failed");
- for (i = 0; addvattrs[i]; i++) {
- a = extractattr(addvattrs[i], 1);
- if (!a)
- debugx(1, DBG_ERR, "addrewrite: adding invalid vendor attribute %s", addvattrs[i]);
- if (!list_push(adda, a))
- debugx(1, DBG_ERR, "malloc failed");
- }
- freegconfmstr(addvattrs);
- }
-
- if (modattrs) {
- moda = list_create();
- if (!moda)
- debugx(1, DBG_ERR, "malloc failed");
- for (i = 0; modattrs[i]; i++) {
- m = extractmodattr(modattrs[i]);
- if (!m)
- debugx(1, DBG_ERR, "addrewrite: modifying invalid attribute %s", modattrs[i]);
- if (!list_push(moda, m))
- debugx(1, DBG_ERR, "malloc failed");
- }
- freegconfmstr(modattrs);
- }
-
- if (rma || rmva || adda || moda) {
- rewrite = malloc(sizeof(struct rewrite));
- if (!rewrite)
- debugx(1, DBG_ERR, "malloc failed");
- rewrite->removeattrs = rma;
- rewrite->removevendorattrs = rmva;
- rewrite->addattrs = adda;
- rewrite->modattrs = moda;
- }
-
- if (!hash_insert(rewriteconfs, value, strlen(value), rewrite))
- debugx(1, DBG_ERR, "malloc failed");
- debug(DBG_DBG, "addrewrite: added rewrite block %s", value);
-}
-
-int setttlattr(struct options *opts, char *defaultattr) {
- char *ttlattr = opts->ttlattr ? opts->ttlattr : defaultattr;
-
- if (vattrname2val(ttlattr, opts->ttlattrtype, opts->ttlattrtype + 1) &&
- (opts->ttlattrtype[1] != 256 || opts->ttlattrtype[0] < 256))
- return 1;
- debug(DBG_ERR, "setttlattr: invalid TTLAttribute value %s", ttlattr);
- return 0;
-}
-
-void freeclsrvconf(struct clsrvconf *conf) {
- free(conf->name);
- if (conf->hostsrc)
- freegconfmstr(conf->hostsrc);
- free(conf->portsrc);
- free(conf->secret);
- free(conf->tls);
- free(conf->matchcertattr);
- if (conf->certcnregex)
- regfree(conf->certcnregex);
- if (conf->certuriregex)
- regfree(conf->certuriregex);
- free(conf->confrewritein);
- free(conf->confrewriteout);
- if (conf->rewriteusername) {
- if (conf->rewriteusername->regex)
- regfree(conf->rewriteusername->regex);
- free(conf->rewriteusername->replacement);
- free(conf->rewriteusername);
- }
- free(conf->dynamiclookupcommand);
- free(conf->rewritein);
- free(conf->rewriteout);
- if (conf->hostports)
- freehostports(conf->hostports);
- if (conf->lock) {
- pthread_mutex_destroy(conf->lock);
- free(conf->lock);
- }
- /* not touching ssl_ctx, clients and servers */
- free(conf);
-}
-
-int mergeconfstring(char **dst, char **src) {
- char *t;
-
- if (*src) {
- *dst = *src;
- *src = NULL;
- return 1;
- }
- if (*dst) {
- t = stringcopy(*dst, 0);
- if (!t) {
- debug(DBG_ERR, "malloc failed");
- return 0;
- }
- *dst = t;
- }
- return 1;
-}
-
-char **mstringcopy(char **in) {
- char **out;
- int n;
-
- if (!in)
- return NULL;
-
- for (n = 0; in[n]; n++);
- out = malloc((n + 1) * sizeof(char *));
- if (!out)
- return NULL;
- for (n = 0; in[n]; n++) {
- out[n] = stringcopy(in[n], 0);
- if (!out[n]) {
- freegconfmstr(out);
- return NULL;
- }
- }
- out[n] = NULL;
- return out;
-}
-
-int mergeconfmstring(char ***dst, char ***src) {
- char **t;
-
- if (*src) {
- *dst = *src;
- *src = NULL;
- return 1;
- }
- if (*dst) {
- t = mstringcopy(*dst);
- if (!t) {
- debug(DBG_ERR, "malloc failed");
- return 0;
- }
- *dst = t;
- }
- return 1;
-}
-
-/* assumes dst is a shallow copy */
-int mergesrvconf(struct clsrvconf *dst, struct clsrvconf *src) {
- if (!mergeconfstring(&dst->name, &src->name) ||
- !mergeconfmstring(&dst->hostsrc, &src->hostsrc) ||
- !mergeconfstring(&dst->portsrc, &src->portsrc) ||
- !mergeconfstring(&dst->secret, &src->secret) ||
- !mergeconfstring(&dst->tls, &src->tls) ||
- !mergeconfstring(&dst->matchcertattr, &src->matchcertattr) ||
- !mergeconfstring(&dst->confrewritein, &src->confrewritein) ||
- !mergeconfstring(&dst->confrewriteout, &src->confrewriteout) ||
- !mergeconfstring(&dst->dynamiclookupcommand, &src->dynamiclookupcommand))
- return 0;
- if (src->pdef)
- dst->pdef = src->pdef;
- dst->statusserver = src->statusserver;
- dst->certnamecheck = src->certnamecheck;
- if (src->retryinterval != 255)
- dst->retryinterval = src->retryinterval;
- if (src->retrycount != 255)
- dst->retrycount = src->retrycount;
- return 1;
-}
-
-int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
- struct clsrvconf *conf;
- char *conftype = NULL, *rewriteinalias = NULL;
- long int dupinterval = LONG_MIN, addttl = LONG_MIN;
-
- debug(DBG_DBG, "confclient_cb called for %s", block);
-
- conf = malloc(sizeof(struct clsrvconf));
- if (!conf)
- debugx(1, DBG_ERR, "malloc failed");
- memset(conf, 0, sizeof(struct clsrvconf));
- conf->certnamecheck = 1;
-
- if (!getgenericconfig(cf, block,
- "type", CONF_STR, &conftype,
- "host", CONF_MSTR, &conf->hostsrc,
- "secret", CONF_STR, &conf->secret,
-#if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
- "tls", CONF_STR, &conf->tls,
- "matchcertificateattribute", CONF_STR, &conf->matchcertattr,
- "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
-#endif
- "DuplicateInterval", CONF_LINT, &dupinterval,
- "addTTL", CONF_LINT, &addttl,
- "rewrite", CONF_STR, &rewriteinalias,
- "rewriteIn", CONF_STR, &conf->confrewritein,
- "rewriteOut", CONF_STR, &conf->confrewriteout,
- "rewriteattribute", CONF_STR, &conf->confrewriteusername,
- NULL
- ))
- debugx(1, DBG_ERR, "configuration error");
-
- conf->name = stringcopy(val, 0);
- if (conf->name && !conf->hostsrc) {
- conf->hostsrc = malloc(2 * sizeof(char *));
- if (conf->hostsrc) {
- conf->hostsrc[0] = stringcopy(val, 0);
- conf->hostsrc[1] = NULL;
- }
- }
- if (!conf->name || !conf->hostsrc || !conf->hostsrc[0])
- debugx(1, DBG_ERR, "malloc failed");
-
- if (!conftype)
- debugx(1, DBG_ERR, "error in block %s, option type missing", block);
- conf->type = protoname2int(conftype);
- if (conf->type == 255)
- debugx(1, DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
- free(conftype);
- conf->pdef = protodefs[conf->type];
-
-#if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
- if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
- conf->tlsconf = conf->tls ? tlsgettls(conf->tls, NULL) : tlsgettls("defaultclient", "default");
- if (!conf->tlsconf)
- debugx(1, DBG_ERR, "error in block %s, no tls context defined", block);
- if (conf->matchcertattr && !addmatchcertattr(conf))
- debugx(1, DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
- }
-#endif
-
- if (dupinterval != LONG_MIN) {
- if (dupinterval < 0 || dupinterval > 255)
- debugx(1, DBG_ERR, "error in block %s, value of option DuplicateInterval is %d, must be 0-255", block, dupinterval);
- conf->dupinterval = (uint8_t)dupinterval;
- } else
- conf->dupinterval = conf->pdef->duplicateintervaldefault;
-
- if (addttl != LONG_MIN) {
- if (addttl < 1 || addttl > 255)
- debugx(1, DBG_ERR, "error in block %s, value of option addTTL is %d, must be 1-255", block, addttl);
- conf->addttl = (uint8_t)addttl;
- }
-
- if (!conf->confrewritein)
- conf->confrewritein = rewriteinalias;
- else
- free(rewriteinalias);
- conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultclient", "default");
- if (conf->confrewriteout)
- conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
-
- if (conf->confrewriteusername) {
- conf->rewriteusername = extractmodattr(conf->confrewriteusername);
- if (!conf->rewriteusername)
- debugx(1, DBG_ERR, "error in block %s, invalid RewriteAttributeValue", block);
- }
-
- if (!addhostport(&conf->hostports, conf->hostsrc, conf->pdef->portdefault, 1) ||
- !resolvehostports(conf->hostports, conf->pdef->socktype))
- debugx(1, DBG_ERR, "resolve failed, exiting");
-
- if (!conf->secret) {
- if (!conf->pdef->secretdefault)
- debugx(1, DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
- conf->secret = stringcopy(conf->pdef->secretdefault, 0);
- if (!conf->secret)
- debugx(1, DBG_ERR, "malloc failed");
- }
-
- conf->lock = malloc(sizeof(pthread_mutex_t));
- if (!conf->lock)
- debugx(1, DBG_ERR, "malloc failed");
-
- pthread_mutex_init(conf->lock, NULL);
- if (!list_push(clconfs, conf))
- debugx(1, DBG_ERR, "malloc failed");
- return 1;
-}
-
-int compileserverconfig(struct clsrvconf *conf, const char *block) {
-#if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
- if (conf->type == RAD_TLS || conf->type == RAD_DTLS) {
- conf->tlsconf = conf->tls ? tlsgettls(conf->tls, NULL) : tlsgettls("defaultserver", "default");
- if (!conf->tlsconf) {
- debug(DBG_ERR, "error in block %s, no tls context defined", block);
- return 0;
- }
- if (conf->matchcertattr && !addmatchcertattr(conf)) {
- debug(DBG_ERR, "error in block %s, invalid MatchCertificateAttributeValue", block);
- return 0;
- }
- }
-#endif
-
- if (!conf->portsrc) {
- conf->portsrc = stringcopy(conf->pdef->portdefault, 0);
- if (!conf->portsrc) {
- debug(DBG_ERR, "malloc failed");
- return 0;
- }
- }
-
- if (conf->retryinterval == 255)
- conf->retryinterval = conf->pdef->retryintervaldefault;
- if (conf->retrycount == 255)
- conf->retrycount = conf->pdef->retrycountdefault;
-
- conf->rewritein = conf->confrewritein ? getrewrite(conf->confrewritein, NULL) : getrewrite("defaultserver", "default");
- if (conf->confrewriteout)
- conf->rewriteout = getrewrite(conf->confrewriteout, NULL);
-
- if (!addhostport(&conf->hostports, conf->hostsrc, conf->portsrc, 0)) {
- debug(DBG_ERR, "error in block %s, failed to parse %s", block, conf->hostsrc);
- return 0;
- }
-
- if (!conf->dynamiclookupcommand && !resolvehostports(conf->hostports, conf->pdef->socktype)) {
- debug(DBG_ERR, "resolve failed, exiting");
- return 0;
- }
- return 1;
-}
-
-int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
- struct clsrvconf *conf, *resconf;
- char *conftype = NULL, *rewriteinalias = NULL;
- long int retryinterval = LONG_MIN, retrycount = LONG_MIN, addttl = LONG_MIN;
-
- debug(DBG_DBG, "confserver_cb called for %s", block);
-
- conf = malloc(sizeof(struct clsrvconf));
- if (!conf) {
- debug(DBG_ERR, "malloc failed");
- return 0;
- }
- memset(conf, 0, sizeof(struct clsrvconf));
- conf->loopprevention = UCHAR_MAX; /* Uninitialized. */
- resconf = (struct clsrvconf *)arg;
- if (resconf) {
- conf->statusserver = resconf->statusserver;
- conf->certnamecheck = resconf->certnamecheck;
- } else
- conf->certnamecheck = 1;
-
- if (!getgenericconfig(cf, block,
- "type", CONF_STR, &conftype,
- "host", CONF_MSTR, &conf->hostsrc,
- "port", CONF_STR, &conf->portsrc,
- "secret", CONF_STR, &conf->secret,
-#if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
- "tls", CONF_STR, &conf->tls,
- "MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
- "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
-#endif
- "addTTL", CONF_LINT, &addttl,
- "rewrite", CONF_STR, &rewriteinalias,
- "rewriteIn", CONF_STR, &conf->confrewritein,
- "rewriteOut", CONF_STR, &conf->confrewriteout,
- "StatusServer", CONF_BLN, &conf->statusserver,
- "RetryInterval", CONF_LINT, &retryinterval,
- "RetryCount", CONF_LINT, &retrycount,
- "DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
- "LoopPrevention", CONF_BLN, &conf->loopprevention,
- NULL
- )) {
- debug(DBG_ERR, "configuration error");
- goto errexit;
- }
-
- conf->name = stringcopy(val, 0);
- if (conf->name && !conf->hostsrc) {
- conf->hostsrc = malloc(2 * sizeof(char *));
- if (conf->hostsrc) {
- conf->hostsrc[0] = stringcopy(val, 0);
- conf->hostsrc[1] = NULL;
- }
- }
- if (!conf->name || !conf->hostsrc || !conf->hostsrc[0]) {
- debug(DBG_ERR, "malloc failed");
- goto errexit;
- }
-
- if (!conftype) {
- debug(DBG_ERR, "error in block %s, option type missing", block);
- goto errexit;
- }
- conf->type = protoname2int(conftype);
- if (conf->type == 255) {
- debug(DBG_ERR, "error in block %s, unknown transport %s", block, conftype);
- goto errexit;
- }
- free(conftype);
- conftype = NULL;
-
- conf->pdef = protodefs[conf->type];
-
- if (!conf->confrewritein)
- conf->confrewritein = rewriteinalias;
- else
- free(rewriteinalias);
- rewriteinalias = NULL;
-
- if (retryinterval != LONG_MIN) {
- if (retryinterval < 1 || retryinterval > conf->pdef->retryintervalmax) {
- debug(DBG_ERR, "error in block %s, value of option RetryInterval is %d, must be 1-%d", block, retryinterval, conf->pdef->retryintervalmax);
- goto errexit;
- }
- conf->retryinterval = (uint8_t)retryinterval;
- } else
- conf->retryinterval = 255;
-
- if (retrycount != LONG_MIN) {
- if (retrycount < 0 || retrycount > conf->pdef->retrycountmax) {
- debug(DBG_ERR, "error in block %s, value of option RetryCount is %d, must be 0-%d", block, retrycount, conf->pdef->retrycountmax);
- goto errexit;
- }
- conf->retrycount = (uint8_t)retrycount;
- } else
- conf->retrycount = 255;
-
- if (addttl != LONG_MIN) {
- if (addttl < 1 || addttl > 255) {
- debug(DBG_ERR, "error in block %s, value of option addTTL is %d, must be 1-255", block, addttl);
- goto errexit;
- }
- conf->addttl = (uint8_t)addttl;
- }
-
- if (resconf) {
- if (!mergesrvconf(resconf, conf))
- goto errexit;
- free(conf);
- conf = resconf;
- if (conf->dynamiclookupcommand) {
- free(conf->dynamiclookupcommand);
- conf->dynamiclookupcommand = NULL;
- }
- }
-
- if (resconf || !conf->dynamiclookupcommand) {
- if (!compileserverconfig(conf, block))
- goto errexit;
- }
-
- if (!conf->secret) {
- if (!conf->pdef->secretdefault) {
- debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
- return 0;
- }
- conf->secret = stringcopy(conf->pdef->secretdefault, 0);
- if (!conf->secret) {
- debug(DBG_ERR, "malloc failed");
- return 0;
- }
- }
-
- if (resconf)
- return 1;
-
- if (!list_push(srvconfs, conf)) {
- debug(DBG_ERR, "malloc failed");
- goto errexit;
- }
- return 1;
-
-errexit:
- free(conftype);
- free(rewriteinalias);
- freeclsrvconf(conf);
- return 0;
-}
-
-int confrealm_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
- char **servers = NULL, **accservers = NULL, *msg = NULL;
- uint8_t accresp = 0;
-
- debug(DBG_DBG, "confrealm_cb called for %s", block);
-
- if (!getgenericconfig(cf, block,
- "server", CONF_MSTR, &servers,
- "accountingServer", CONF_MSTR, &accservers,
- "ReplyMessage", CONF_STR, &msg,
- "AccountingResponse", CONF_BLN, &accresp,
- NULL
- ))
- debugx(1, DBG_ERR, "configuration error");
-
- addrealm(realms, val, servers, accservers, msg, accresp);
- return 1;
-}
-
-int confrewrite_cb(struct gconffile **cf, void *arg, char *block, char *opt, char *val) {
- char **rmattrs = NULL, **rmvattrs = NULL;
- char **addattrs = NULL, **addvattrs = NULL;
- char **modattrs = NULL;
-
- debug(DBG_DBG, "confrewrite_cb called for %s", block);
-
- if (!getgenericconfig(cf, block,
- "removeAttribute", CONF_MSTR, &rmattrs,
- "removeVendorAttribute", CONF_MSTR, &rmvattrs,
- "addAttribute", CONF_MSTR, &addattrs,
- "addVendorAttribute", CONF_MSTR, &addvattrs,
- "modifyAttribute", CONF_MSTR, &modattrs,
- NULL
- ))
- debugx(1, DBG_ERR, "configuration error");
- addrewrite(val, rmattrs, rmvattrs, addattrs, addvattrs, modattrs);
- return 1;
-}
-
-int setprotoopts(uint8_t type, char **listenargs, char *sourcearg) {
- struct commonprotoopts *protoopts;
-
- protoopts = malloc(sizeof(struct commonprotoopts));
- if (!protoopts)
- return 0;
- memset(protoopts, 0, sizeof(struct commonprotoopts));
- protoopts->listenargs = listenargs;
- protoopts->sourcearg = sourcearg;
- protodefs[type]->setprotoopts(protoopts);
- return 1;
-}
-
-void getmainconfig(const char *configfile) {
- long int addttl = LONG_MIN, loglevel = LONG_MIN;
- struct gconffile *cfs;
- char **listenargs[RAD_PROTOCOUNT];
- char *sourcearg[RAD_PROTOCOUNT];
- int i;
-
- cfs = openconfigfile(configfile);
- memset(&options, 0, sizeof(options));
- memset(&listenargs, 0, sizeof(listenargs));
- memset(&sourcearg, 0, sizeof(sourcearg));
-
- clconfs = list_create();
- if (!clconfs)
- debugx(1, DBG_ERR, "malloc failed");
-
- srvconfs = list_create();
- if (!srvconfs)
- debugx(1, DBG_ERR, "malloc failed");
-
- realms = list_create();
- if (!realms)
- debugx(1, DBG_ERR, "malloc failed");
-
- rewriteconfs = hash_create();
- if (!rewriteconfs)
- debugx(1, DBG_ERR, "malloc failed");
-
- if (!getgenericconfig(&cfs, NULL,
-#ifdef RADPROT_UDP
- "ListenUDP", CONF_MSTR, &listenargs[RAD_UDP],
- "SourceUDP", CONF_STR, &sourcearg[RAD_UDP],
-#endif
-#ifdef RADPROT_TCP
- "ListenTCP", CONF_MSTR, &listenargs[RAD_TCP],
- "SourceTCP", CONF_STR, &sourcearg[RAD_TCP],
-#endif
-#ifdef RADPROT_TLS
- "ListenTLS", CONF_MSTR, &listenargs[RAD_TLS],
- "SourceTLS", CONF_STR, &sourcearg[RAD_TLS],
-#endif
-#ifdef RADPROT_DTLS
- "ListenDTLS", CONF_MSTR, &listenargs[RAD_DTLS],
- "SourceDTLS", CONF_STR, &sourcearg[RAD_DTLS],
-#endif
- "TTLAttribute", CONF_STR, &options.ttlattr,
- "addTTL", CONF_LINT, &addttl,
- "LogLevel", CONF_LINT, &loglevel,
- "LogDestination", CONF_STR, &options.logdestination,
- "LoopPrevention", CONF_BLN, &options.loopprevention,
- "Client", CONF_CBK, confclient_cb, NULL,
- "Server", CONF_CBK, confserver_cb, NULL,
- "Realm", CONF_CBK, confrealm_cb, NULL,
-#if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
- "TLS", CONF_CBK, conftls_cb, NULL,
-#endif
- "Rewrite", CONF_CBK, confrewrite_cb, NULL,
- NULL
- ))
- debugx(1, DBG_ERR, "configuration error");
-
- if (loglevel != LONG_MIN) {
- if (loglevel < 1 || loglevel > 5)
- debugx(1, DBG_ERR, "error in %s, value of option LogLevel is %d, must be 1, 2, 3, 4 or 5", configfile, loglevel);
- options.loglevel = (uint8_t)loglevel;
- }
- if (addttl != LONG_MIN) {
- if (addttl < 1 || addttl > 255)
- debugx(1, DBG_ERR, "error in %s, value of option addTTL is %d, must be 1-255", configfile, addttl);
- options.addttl = (uint8_t)addttl;
- }
- if (!setttlattr(&options, DEFAULT_TTL_ATTR))
- debugx(1, DBG_ERR, "Failed to set TTLAttribute, exiting");
-
- for (i = 0; i < RAD_PROTOCOUNT; i++)
- if (listenargs[i] || sourcearg[i])
- setprotoopts(i, listenargs[i], sourcearg[i]);
-}
-
-void getargs(int argc, char **argv, uint8_t *foreground, uint8_t *pretend, uint8_t *loglevel, char **configfile, char **pidfile) {
- int c;
-
- while ((c = getopt(argc, argv, "c:d:i:fpv")) != -1) {
- switch (c) {
- case 'c':
- *configfile = optarg;
- break;
- case 'd':
- if (strlen(optarg) != 1 || *optarg < '1' || *optarg > '5')
- debugx(1, DBG_ERR, "Debug level must be 1, 2, 3, 4 or 5, not %s", optarg);
- *loglevel = *optarg - '0';
- break;
- case 'f':
- *foreground = 1;
- break;
- case 'i':
- *pidfile = optarg;
- break;
- case 'p':
- *pretend = 1;
- break;
- case 'v':
- debug(DBG_ERR, "radsecproxy revision %s", PACKAGE_VERSION);
- debug(DBG_ERR, "This binary was built with support for the following transports:");
-#ifdef RADPROT_UDP
- debug(DBG_ERR, " UDP");
-#endif
-#ifdef RADPROT_TCP
- debug(DBG_ERR, " TCP");
-#endif
-#ifdef RADPROT_TLS
- debug(DBG_ERR, " TLS");
-#endif
-#ifdef RADPROT_DTLS
- debug(DBG_ERR, " DTLS");
-#endif
- exit(0);
- default:
- goto usage;
- }
- }
- if (!(argc - optind))
- return;
-
-usage:
- debugx(1, DBG_ERR, "Usage:\n%s [ -c configfile ] [ -d debuglevel ] [ -f ] [ -i pidfile ] [ -p ] [ -v ]", argv[0]);
-}
-
-#ifdef SYS_SOLARIS9
-int daemon(int a, int b) {
- int i;
-
- if (fork())
- exit(0);
-
- setsid();
-
- for (i = 0; i < 3; i++) {
- close(i);
- open("/dev/null", O_RDWR);
- }
- return 1;
-}
-#endif
-
-void *sighandler(void *arg) {
- sigset_t sigset;
- int sig;
-
- for(;;) {
- sigemptyset(&sigset);
- sigaddset(&sigset, SIGHUP);
- sigaddset(&sigset, SIGPIPE);
- sigwait(&sigset, &sig);
- switch (sig) {
- case 0:
- /* completely ignoring this */
- break;
- case SIGHUP:
- debug(DBG_INFO, "sighandler: got SIGHUP");
- debug_reopen_log();
- break;
- case SIGPIPE:
- debug(DBG_WARN, "sighandler: got SIGPIPE, TLS write error?");
- break;
- default:
- debug(DBG_WARN, "sighandler: ignoring signal %d", sig);
- }
- }
-}
-
-int createpidfile(const char *pidfile) {
- int r = 0;
- FILE *f = fopen(pidfile, "w");
- if (f)
- r = fprintf(f, "%ld\n", (long) getpid());
- return f && !fclose(f) && r >= 0;
-}
-
-int main(int argc, char **argv) {
- pthread_t sigth;
- sigset_t sigset;
- struct list_node *entry;
- uint8_t foreground = 0, pretend = 0, loglevel = 0;
- char *configfile = NULL, *pidfile = NULL;
- struct clsrvconf *srvconf;
- int i;
-
- debug_init("radsecproxy");
- debug_set_level(DEBUG_LEVEL);
-
- for (i = 0; i < RAD_PROTOCOUNT; i++)
- protodefs[i] = protoinits[i](i);
-
- /* needed even if no TLS/DTLS transport */
- sslinit();
-
- getargs(argc, argv, &foreground, &pretend, &loglevel, &configfile, &pidfile);
- if (loglevel)
- debug_set_level(loglevel);
- getmainconfig(configfile ? configfile : CONFIG_MAIN);
- if (loglevel)
- options.loglevel = loglevel;
- else if (options.loglevel)
- debug_set_level(options.loglevel);
- if (!foreground)
- debug_set_destination(options.logdestination ? options.logdestination : "x-syslog:///");
- free(options.logdestination);
-
- if (!list_first(clconfs))
- debugx(1, DBG_ERR, "No clients configured, nothing to do, exiting");
- if (!list_first(realms))
- debugx(1, DBG_ERR, "No realms configured, nothing to do, exiting");
-
- if (pretend)
- debugx(0, DBG_ERR, "All OK so far; exiting since only pretending");
-
- if (!foreground && (daemon(0, 0) < 0))
- debugx(1, DBG_ERR, "daemon() failed: %s", strerror(errno));
-
- debug_timestamp_on();
- debug(DBG_INFO, "radsecproxy revision %s starting", PACKAGE_VERSION);
- if (pidfile && !createpidfile(pidfile))
- debugx(1, DBG_ERR, "failed to create pidfile %s: %s", pidfile, strerror(errno));
-
- sigemptyset(&sigset);
- /* exit on all but SIGHUP|SIGPIPE, ignore more? */
- sigaddset(&sigset, SIGHUP);
- sigaddset(&sigset, SIGPIPE);
- pthread_sigmask(SIG_BLOCK, &sigset, NULL);
- pthread_create(&sigth, NULL, sighandler, NULL);
-
- for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
- srvconf = (struct clsrvconf *)entry->data;
- if (srvconf->dynamiclookupcommand)
- continue;
- if (!addserver(srvconf))
- debugx(1, DBG_ERR, "failed to add server");
- if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
- (void *)(srvconf->servers)))
- debugx(1, DBG_ERR, "pthread_create failed");
- }
-
- for (i = 0; i < RAD_PROTOCOUNT; i++) {
- if (!protodefs[i])
- continue;
- if (protodefs[i]->initextra)
- protodefs[i]->initextra();
- if (find_clconf_type(i, NULL))
- createlisteners(i);
- }
-
- /* just hang around doing nothing, anything to do here? */
- for (;;)
- sleep(1000);
-}
-
-/* Local Variables: */
-/* c-file-style: "stroustrup" */
-/* End: */
projects / libradsec.git / blobdiff