trying to refresh only ca and crl stuff when tls cache expires

git-svn-id: https://svn.testnett.uninett.no/radsecproxy/trunk@407 e88ac4ed-0b26-0410-9574-a7f39faa03bf

1 files changed, 71 insertions, 50 deletions

diff --git a/radsecproxy.c b/radsecproxy.c
index 8baa810..53935f2 100644
--- a/radsecproxy.c
+++ b/radsecproxy.c
@@ -2277,34 +2277,82 @@ void ssl_info_callback(const SSL *ssl, int where, int ret) {
 }
 #endif
 
-SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
-    SSL_CTX *ctx = NULL;
+void tlsinit() {
+    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));
+    }
+}
+
+int tlsaddcacrl(SSL_CTX *ctx, struct tls *conf) {
     STACK_OF(X509_NAME) *calist;
     X509_STORE *x509_s;
-    int i;
     unsigned long error;
 
-    if (!ssl_locks) {
-	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);
+    if (!SSL_CTX_load_verify_locations(ctx, conf->cacertfile, conf->cacertpath)) {
+	while ((error = ERR_get_error()))
+	    debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
+	debug(DBG_ERR, "tlsaddcacrl: Error updating TLS context %s", conf->name);
+	return 0;
+    }
+
+    calist = conf->cacertfile ? SSL_load_client_CA_file(conf->cacertfile) : NULL;
+    if (!conf->cacertfile || calist) {
+	if (conf->cacertpath) {
+	    if (!calist)
+		calist = sk_X509_NAME_new_null();
+	    if (!SSL_add_dir_cert_subjects_to_stack(calist, conf->cacertpath)) {
+		sk_X509_NAME_free(calist);
+		calist = NULL;
+	    }
 	}
-	CRYPTO_set_id_callback(ssl_thread_id);
-	CRYPTO_set_locking_callback(ssl_locking_callback);
+    }
+    if (!calist) {
+	while ((error = ERR_get_error()))
+	    debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
+	debug(DBG_ERR, "tlsaddcacrl: Error adding CA subjects in TLS context %s", conf->name);
+	return 0;
+    }
+    ERR_clear_error(); /* add_dir_cert_subj returns errors on success */
+    SSL_CTX_set_client_CA_list(ctx, calist);
 
-	SSL_load_error_strings();
-	SSL_library_init();
+    SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
+    SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
 
-	while (!RAND_status()) {
-	    time_t t = time(NULL);
-	    pid_t pid = getpid();
-	    RAND_seed((unsigned char *)&t, sizeof(time_t));
-	    RAND_seed((unsigned char *)&pid, sizeof(pid));
-	}
+    if (conf->crlcheck) {
+	x509_s = SSL_CTX_get_cert_store(ctx);
+	X509_STORE_set_flags(x509_s, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL);
     }
 
+    debug(DBG_DBG, "tlsaddcacrl: updated TLS context %s", conf->name);
+    return 1;
+}
+
+SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
+    SSL_CTX *ctx = NULL;
+    unsigned long error;
+
+    if (!ssl_locks)
+	tlsinit();
+
     switch (type) {
     case RAD_TLS:
 	ctx = SSL_CTX_new(TLSv1_method());
@@ -2331,8 +2379,7 @@ SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
     }
     if (!SSL_CTX_use_certificate_chain_file(ctx, conf->certfile) ||
 	!SSL_CTX_use_PrivateKey_file(ctx, conf->certkeyfile, SSL_FILETYPE_PEM) ||
-	!SSL_CTX_check_private_key(ctx) ||
-	!SSL_CTX_load_verify_locations(ctx, conf->cacertfile, conf->cacertpath)) {
+	!SSL_CTX_check_private_key(ctx)) {
 	while ((error = ERR_get_error()))
 	    debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
 	debug(DBG_ERR, "tlscreatectx: Error initialising SSL/TLS in TLS context %s", conf->name);
@@ -2340,34 +2387,10 @@ SSL_CTX *tlscreatectx(uint8_t type, struct tls *conf) {
 	return NULL;
     }
 
-    calist = conf->cacertfile ? SSL_load_client_CA_file(conf->cacertfile) : NULL;
-    if (!conf->cacertfile || calist) {
-	if (conf->cacertpath) {
-	    if (!calist)
-		calist = sk_X509_NAME_new_null();
-	    if (!SSL_add_dir_cert_subjects_to_stack(calist, conf->cacertpath)) {
-		sk_X509_NAME_free(calist);
-		calist = NULL;
-	    }
-	}
-    }
-    if (!calist) {
-	while ((error = ERR_get_error()))
-	    debug(DBG_ERR, "SSL: %s", ERR_error_string(error, NULL));
-	debug(DBG_ERR, "tlscreatectx: Error adding CA subjects in TLS context %s", conf->name);
+    if (!tlsaddcacrl(ctx, conf)) {
 	SSL_CTX_free(ctx);
 	return NULL;
     }
-    ERR_clear_error(); /* add_dir_cert_subj returns errors on success */
-    SSL_CTX_set_client_CA_list(ctx, calist);
-    
-    SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb);
-    SSL_CTX_set_verify_depth(ctx, MAX_CERT_DEPTH + 1);
-
-    if (conf->crlcheck) {
-	x509_s = SSL_CTX_get_cert_store(ctx);
-	X509_STORE_set_flags(x509_s, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL);
-    }
 
     debug(DBG_DBG, "tlscreatectx: created TLS context %s", conf->name);
     return ctx;
@@ -2394,8 +2417,7 @@ SSL_CTX *tlsgetctx(uint8_t type, struct tls *t) {
 	if (t->tlsexpiry && t->tlsctx) {
 	    if (t->tlsexpiry < now.tv_sec) {
 		t->tlsexpiry = now.tv_sec + t->cacheexpiry;
-		SSL_CTX_free(t->tlsctx);
-		return t->tlsctx = tlscreatectx(RAD_TLS, t);
+		tlsaddcacrl(t->tlsctx, t);
 	    }
 	}
 	if (!t->tlsctx) {
@@ -2408,8 +2430,7 @@ SSL_CTX *tlsgetctx(uint8_t type, struct tls *t) {
 	if (t->dtlsexpiry && t->dtlsctx) {
 	    if (t->dtlsexpiry < now.tv_sec) {
 		t->dtlsexpiry = now.tv_sec + t->cacheexpiry;
-		SSL_CTX_free(t->dtlsctx);
-		return t->dtlsctx = tlscreatectx(RAD_DTLS, t);
+		tlsaddcacrl(t->dtlsctx, t);
 	    }
 	}
 	if (!t->dtlsctx) {