net/wireguard/main.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003  * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
0004  */
0005
0006 #include "version.h"
0007 #include "device.h"
0008 #include "noise.h"
0009 #include "queueing.h"
0010 #include "ratelimiter.h"
0011 #include "netlink.h"
0012
0013 #include <uapi/linux/wireguard.h>
0014
0015 #include <linux/init.h>
0016 #include <linux/module.h>
0017 #include <linux/genetlink.h>
0018 #include <net/rtnetlink.h>
0019
0020 static int __init wg_mod_init(void)
0021 {
0022     int ret;
0023
0024     ret = wg_allowedips_slab_init();
0025     if (ret < 0)
0026         goto err_allowedips;
0027
0028 #ifdef DEBUG
0029     ret = -ENOTRECOVERABLE;
0030     if (!wg_allowedips_selftest() || !wg_packet_counter_selftest() ||
0031         !wg_ratelimiter_selftest())
0032         goto err_peer;
0033 #endif
0034     wg_noise_init();
0035
0036     ret = wg_peer_init();
0037     if (ret < 0)
0038         goto err_peer;
0039
0040     ret = wg_device_init();
0041     if (ret < 0)
0042         goto err_device;
0043
0044     ret = wg_genetlink_init();
0045     if (ret < 0)
0046         goto err_netlink;
0047
0048     pr_info("WireGuard " WIREGUARD_VERSION " loaded. See www.wireguard.com for information.\n");
0049     pr_info("Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.\n");
0050
0051     return 0;
0052
0053 err_netlink:
0054     wg_device_uninit();
0055 err_device:
0056     wg_peer_uninit();
0057 err_peer:
0058     wg_allowedips_slab_uninit();
0059 err_allowedips:
0060     return ret;
0061 }
0062
0063 static void __exit wg_mod_exit(void)
0064 {
0065     wg_genetlink_uninit();
0066     wg_device_uninit();
0067     wg_peer_uninit();
0068     wg_allowedips_slab_uninit();
0069 }
0070
0071 module_init(wg_mod_init);
0072 module_exit(wg_mod_exit);
0073 MODULE_LICENSE("GPL v2");
0074 MODULE_DESCRIPTION("WireGuard secure network tunnel");
0075 MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
0076 MODULE_VERSION(WIREGUARD_VERSION);
0077 MODULE_ALIAS_RTNL_LINK(KBUILD_MODNAME);
0078 MODULE_ALIAS_GENL_FAMILY(WG_GENL_NAME);