drivers/net/wireguard/main.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
   4  */
   5
   6 #include "version.h"
   7 #include "device.h"
   8 #include "noise.h"
   9 #include "queueing.h"
  10 #include "ratelimiter.h"
  11 #include "netlink.h"
  12
  13 #include <uapi/linux/wireguard.h>
  14
  15 #include <linux/init.h>
  16 #include <linux/module.h>
  17 #include <linux/genetlink.h>
  18 #include <net/rtnetlink.h>
  19
  20 static int __init mod_init(void)
  21 {
  22         int ret;
  23
  24         ret = wg_allowedips_slab_init();
  25         if (ret < 0)
  26                 goto err_allowedips;
  27
  28 #ifdef DEBUG
  29         ret = -ENOTRECOVERABLE;
  30         if (!wg_allowedips_selftest() || !wg_packet_counter_selftest() ||
  31             !wg_ratelimiter_selftest())
  32                 goto err_peer;
  33 #endif
  34         wg_noise_init();
  35
  36         ret = wg_peer_init();
  37         if (ret < 0)
  38                 goto err_peer;
  39
  40         ret = wg_device_init();
  41         if (ret < 0)
  42                 goto err_device;
  43
  44         ret = wg_genetlink_init();
  45         if (ret < 0)
  46                 goto err_netlink;
  47
  48         pr_info("WireGuard " WIREGUARD_VERSION " loaded. See www.wireguard.com for information.\n");
  49         pr_info("Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.\n");
  50
  51         return 0;
  52
  53 err_netlink:
  54         wg_device_uninit();
  55 err_device:
  56         wg_peer_uninit();
  57 err_peer:
  58         wg_allowedips_slab_uninit();
  59 err_allowedips:
  60         return ret;
  61 }
  62
  63 static void __exit mod_exit(void)
  64 {
  65         wg_genetlink_uninit();
  66         wg_device_uninit();
  67         wg_peer_uninit();
  68         wg_allowedips_slab_uninit();
  69 }
  70
  71 module_init(mod_init);
  72 module_exit(mod_exit);
  73 MODULE_LICENSE("GPL v2");
  74 MODULE_DESCRIPTION("WireGuard secure network tunnel");
  75 MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
  76 MODULE_VERSION(WIREGUARD_VERSION);
  77 MODULE_ALIAS_RTNL_LINK(KBUILD_MODNAME);
  78 MODULE_ALIAS_GENL_FAMILY(WG_GENL_NAME);