summaryrefslogtreecommitdiff
path: root/src/shared/fw-util.h
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2015-01-13 13:44:30 +0100
committerLennart Poettering <lennart@poettering.net>2015-01-13 13:55:15 +0100
commit76917807eb50ccde58901e8bec7ed3d408d1cc22 (patch)
treef4de29f757a3257dd2190a744ea373e87e81612d /src/shared/fw-util.h
parent6cb7fa17b3d89741a5fd3ac807775a3022c7d891 (diff)
shared: add minimal firewall manipulation helpers for establishing NAT rules, using libiptc
Diffstat (limited to 'src/shared/fw-util.h')
-rw-r--r--src/shared/fw-util.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/src/shared/fw-util.h b/src/shared/fw-util.h
new file mode 100644
index 0000000000..58b4c2024d
--- /dev/null
+++ b/src/shared/fw-util.h
@@ -0,0 +1,82 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "in-addr-util.h"
+
+#ifdef HAVE_LIBIPTC
+
+int fw_add_masquerade(
+ bool add,
+ int af,
+ int protocol,
+ const union in_addr_union *source,
+ unsigned source_prefixlen,
+ const char *out_interface,
+ const union in_addr_union *destination,
+ unsigned destination_prefixlen);
+
+int fw_add_local_dnat(
+ bool add,
+ int af,
+ int protocol,
+ const char *in_interface,
+ const union in_addr_union *source,
+ unsigned source_prefixlen,
+ const union in_addr_union *destination,
+ unsigned destination_prefixlen,
+ uint16_t local_port,
+ const union in_addr_union *remote,
+ uint16_t remote_port,
+ const union in_addr_union *previous_remote);
+
+#else
+
+static inline int fw_add_masquerade(
+ bool add,
+ int af,
+ int protocol,
+ const union in_addr_union *source,
+ unsigned source_prefixlen,
+ const char *out_interface,
+ const union in_addr_union *destination,
+ unsigned destination_prefixlen) {
+ return -ENOTSUP;
+}
+
+static inline int fw_add_local_dnat(
+ bool add,
+ int af,
+ int protocol,
+ const char *in_interface,
+ const union in_addr_union *source,
+ unsigned source_prefixlen,
+ const union in_addr_union *destination,
+ unsigned destination_prefixlen,
+ uint16_t local_port,
+ const union in_addr_union *remote,
+ uint16_t remote_port,
+ const union in_addr_union *previous_remote) {
+ return -ENOSTUP;
+}
+
+#endif