1 files changed, 105 insertions, 0 deletions
diff --git a/src/lib-master/master-service-ssl.c b/src/lib-master/master-service-ssl.c
new file mode 100644
index 0000000..5d1b515
--- /dev/null
+++ b/src/lib-master/master-service-ssl.c
@@ -0,0 +1,105 @@
+/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "ioloop.h"
+#include "buffer.h"
+#include "iostream-ssl.h"
+#include "master-service-private.h"
+#include "master-service-settings.h"
+#include "master-service-ssl-settings.h"
+#include "master-service-ssl.h"
+
+#include <unistd.h>
+
+int master_service_ssl_init(struct master_service *service,
+			    struct istream **input, struct ostream **output,
+			    struct ssl_iostream **ssl_iostream_r,
+			    const char **error_r)
+{
+	const struct master_service_ssl_settings *set;
+	struct ssl_iostream_settings ssl_set;
+
+	i_assert(service->ssl_ctx_initialized);
+
+	set = master_service_ssl_settings_get(service);
+	if (service->ssl_ctx == NULL) {
+		if (strcmp(set->ssl, "no") == 0)
+			*error_r = "SSL is disabled (ssl=no)";
+		else
+			*error_r = "Failed to initialize SSL context";
+		return -1;
+	}
+
+	i_zero(&ssl_set);
+	ssl_set.verbose = set->verbose_ssl;
+	ssl_set.verify_remote_cert = set->ssl_verify_client_cert;
+	return io_stream_create_ssl_server(service->ssl_ctx, &ssl_set,
+					   input, output, ssl_iostream_r, error_r);
+}
+
+bool master_service_ssl_is_enabled(struct master_service *service)
+{
+	return service->ssl_ctx != NULL;
+}
+
+void master_service_ssl_ctx_init(struct master_service *service)
+{
+	const struct master_service_ssl_settings *set;
+	const struct master_service_ssl_server_settings *server_set;
+	struct ssl_iostream_settings ssl_set;
+	const char *error;
+
+	if (service->ssl_ctx_initialized)
+		return;
+	service->ssl_ctx_initialized = TRUE;
+
+	/* must be called after master_service_init_finish() so that if
+	   initialization fails we can close the SSL listeners */
+	i_assert(service->listeners != NULL || service->socket_count == 0);
+
+	set = master_service_ssl_settings_get(service);
+	server_set = master_service_ssl_server_settings_get(service);
+	if (strcmp(set->ssl, "no") == 0) {
+		/* SSL disabled, don't use it */
+		return;
+	}
+
+	i_zero(&ssl_set);
+	ssl_set.min_protocol = set->ssl_min_protocol;
+	ssl_set.cipher_list = set->ssl_cipher_list;
+	ssl_set.curve_list = set->ssl_curve_list;
+	ssl_set.ca = set->ssl_ca;
+	ssl_set.cert.cert = server_set->ssl_cert;
+	ssl_set.cert.key = server_set->ssl_key;
+	ssl_set.dh = server_set->ssl_dh;
+	ssl_set.cert.key_password = server_set->ssl_key_password;
+	ssl_set.cert_username_field = set->ssl_cert_username_field;
+	if (server_set->ssl_alt_cert != NULL &&
+	    *server_set->ssl_alt_cert != '\0') {
+		ssl_set.alt_cert.cert = server_set->ssl_alt_cert;
+		ssl_set.alt_cert.key = server_set->ssl_alt_key;
+		ssl_set.alt_cert.key_password = server_set->ssl_key_password;
+	}
+	ssl_set.crypto_device = set->ssl_crypto_device;
+	ssl_set.skip_crl_check = !set->ssl_require_crl;
+
+	ssl_set.verbose = set->verbose_ssl;
+	ssl_set.verify_remote_cert = set->ssl_verify_client_cert;
+	ssl_set.prefer_server_ciphers = set->ssl_prefer_server_ciphers;
+	ssl_set.compression = set->parsed_opts.compression;
+
+	if (ssl_iostream_context_init_server(&ssl_set, &service->ssl_ctx,
+					     &error) < 0) {
+		i_error("SSL context initialization failed, disabling SSL: %s",
+			error);
+		master_service_ssl_io_listeners_remove(service);
+		return;
+	}
+}
+
+void master_service_ssl_ctx_deinit(struct master_service *service)
+{
+	if (service->ssl_ctx != NULL)
+		ssl_iostream_context_unref(&service->ssl_ctx);
+	service->ssl_ctx_initialized = FALSE;
+}