wireguard: add dos mitigation support

[vpp.git] / src / plugins / wireguard / wireguard_cli.c

diff --git a/src/plugins/wireguard/wireguard_cli.c b/src/plugins/wireguard/wireguard_cli.c
old mode 100755 (executable)
new mode 100644 (file)
index 7fdccdc..214e6a5
--- a/src/plugins/wireguard/wireguard_cli.c
+++ b/src/plugins/wireguard/wireguard_cli.c
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2020 Cisco and/or its affiliates.
  * Copyright (c) 2020 Doc.ai and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,8 +23,9 @@ static clib_error_t *
 wg_if_create_cli (vlib_main_t * vm,
                  unformat_input_t * input, vlib_cli_command_t * cmd)
 {
+  wg_main_t *wmp = &wg_main;
   unformat_input_t _line_input, *line_input = &_line_input;
-  u8 private_key[NOISE_PUBLIC_KEY_LEN];
+  u8 private_key[NOISE_PUBLIC_KEY_LEN + 1];
   u32 instance, sw_if_index;
   ip_address_t src_ip;
   clib_error_t *error;
@@ -36,6 +38,8 @@ wg_if_create_cli (vlib_main_t * vm,
   private_key_64 = 0;
   port = 0;
 
+  wg_feature_init (wmp);
+
   if (unformat_user (input, unformat_line_input, line_input))
     {
       while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
@@ -103,10 +107,13 @@ static clib_error_t *
 wg_if_delete_cli (vlib_main_t * vm,
                  unformat_input_t * input, vlib_cli_command_t * cmd)
 {
+  wg_main_t *wmp = &wg_main;
   vnet_main_t *vnm;
   u32 sw_if_index;
   int rv;
 
+  wg_feature_init (wmp);
+
   vnm = vnet_get_main ();
   sw_if_index = ~0;
 
@@ -150,11 +157,12 @@ wg_peer_add_command_fn (vlib_main_t * vm,
                        unformat_input_t * input, vlib_cli_command_t * cmd)
 {
   vnet_main_t *vnm = vnet_get_main ();
+  wg_main_t *wmp = &wg_main;
   clib_error_t *error = NULL;
   unformat_input_t _line_input, *line_input = &_line_input;
 
   u8 *public_key_64 = 0;
-  u8 public_key[NOISE_PUBLIC_KEY_LEN];
+  u8 public_key[NOISE_PUBLIC_KEY_LEN + 1];
   fib_prefix_t allowed_ip, *allowed_ips = NULL;
   ip_prefix_t pfx;
   ip_address_t ip;
@@ -167,6 +175,8 @@ wg_peer_add_command_fn (vlib_main_t * vm,
   if (!unformat_user (input, unformat_line_input, line_input))
     return 0;
 
+  wg_feature_init (wmp);
+
   while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
     {
       if (unformat (line_input, "public-key %s", &public_key_64))
@@ -182,7 +192,7 @@ wg_peer_add_command_fn (vlib_main_t * vm,
        ;
       else if (unformat (line_input, "table-id %d", &table_id))
        ;
-      else if (unformat (line_input, "port %d", &portDst))
+      else if (unformat (line_input, "dst-port %d", &portDst))
        ;
       else if (unformat (line_input, "persistent-keepalive %d",
                         &persistent_keepalive))
@@ -203,16 +213,8 @@ wg_peer_add_command_fn (vlib_main_t * vm,
        }
     }
 
-  if (AF_IP6 == ip_addr_version (&ip) ||
-      FIB_PROTOCOL_IP6 == allowed_ip.fp_proto)
-    rv = VNET_API_ERROR_INVALID_PROTOCOL;
-  else
-    rv = wg_peer_add (tun_sw_if_index,
-                     public_key,
-                     table_id,
-                     &ip_addr_46 (&ip),
-                     allowed_ips,
-                     portDst, persistent_keepalive, &peer_index);
+  rv = wg_peer_add (tun_sw_if_index, public_key, table_id, &ip_addr_46 (&ip),
+                   allowed_ips, portDst, persistent_keepalive, &peer_index);
 
   switch (rv)
     {
@@ -244,12 +246,12 @@ done:
 }
 
 /* *INDENT-OFF* */
-VLIB_CLI_COMMAND (wg_peer_add_command, static) =
-{
+VLIB_CLI_COMMAND (wg_peer_add_command, static) = {
   .path = "wireguard peer add",
-  .short_help = "wireguard peer add <wg_int> public-key <pub_key_other>"
-  "endpoint <ip4_dst> allowed-ip <prefix>"
-  "dst-port [port_dst] persistent-keepalive [keepalive_interval]",
+  .short_help =
+    "wireguard peer add <wg_int> public-key <pub_key_other> "
+    "endpoint <ip4_dst> allowed-ip <prefix> "
+    "dst-port [port_dst] persistent-keepalive [keepalive_interval]",
   .function = wg_peer_add_command_fn,
 };
 /* *INDENT-ON* */
@@ -258,6 +260,7 @@ static clib_error_t *
 wg_peer_remove_command_fn (vlib_main_t * vm,
                           unformat_input_t * input, vlib_cli_command_t * cmd)
 {
+  wg_main_t *wmp = &wg_main;
   clib_error_t *error = NULL;
   u32 peer_index;
   int rv;
@@ -266,6 +269,8 @@ wg_peer_remove_command_fn (vlib_main_t * vm,
   if (!unformat_user (input, unformat_line_input, line_input))
     return 0;
 
+  wg_feature_init (wmp);
+
   if (unformat (line_input, "%d", &peer_index))
     ;
   else
@@ -335,6 +340,10 @@ static clib_error_t *
 wg_show_if_command_fn (vlib_main_t * vm,
                       unformat_input_t * input, vlib_cli_command_t * cmd)
 {
+  wg_main_t *wmp = &wg_main;
+
+  wg_feature_init (wmp);
+
   wg_if_walk (wg_if_show_one, vm);
 
   return NULL;
@@ -347,6 +356,61 @@ VLIB_CLI_COMMAND (wg_show_itfs_command, static) =
   .short_help = "show wireguard",
   .function = wg_show_if_command_fn,
 };
+
+static clib_error_t *
+wg_set_async_mode_command_fn (vlib_main_t *vm, unformat_input_t *input,
+                             vlib_cli_command_t *cmd)
+{
+  unformat_input_t _line_input, *line_input = &_line_input;
+  int async_enable = 0;
+
+  if (!unformat_user (input, unformat_line_input, line_input))
+    return 0;
+
+  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (line_input, "on"))
+       async_enable = 1;
+      else if (unformat (line_input, "off"))
+       async_enable = 0;
+      else
+       return (clib_error_return (0, "unknown input '%U'",
+                                  format_unformat_error, line_input));
+    }
+
+  wg_set_async_mode (async_enable);
+
+  unformat_free (line_input);
+  return (NULL);
+}
+
+VLIB_CLI_COMMAND (wg_set_async_mode_command, static) = {
+  .path = "set wireguard async mode",
+  .short_help = "set wireguard async mode on|off",
+  .function = wg_set_async_mode_command_fn,
+};
+
+static clib_error_t *
+wg_show_mode_command_fn (vlib_main_t *vm, unformat_input_t *input,
+                        vlib_cli_command_t *cmd)
+{
+  vlib_cli_output (vm, "Wireguard mode");
+
+#define _(v, f, s)                                                            \
+  vlib_cli_output (vm, "\t%s: %s", s,                                         \
+                  (wg_op_mode_is_set_##f () ? "enabled" : "disabled"));
+  foreach_wg_op_mode_flags
+#undef _
+
+    return (NULL);
+}
+
+VLIB_CLI_COMMAND (wg_show_modemode_command, static) = {
+  .path = "show wireguard mode",
+  .short_help = "show wireguard mode",
+  .function = wg_show_mode_command_fn,
+};
+
 /* *INDENT-ON* */
 
 /*