Alexander Chernavin
44ec846f4a
Type: feature Currently, if a handshake message is sent and a cookie message is received in reply, the cookie message will be ignored. Thus, further handshake messages will not have valid mac2 and handshake will not be able to be completed. With this change, process received cookie messages to be able to calculate mac2 for further handshake messages sent. Cover this with tests. Signed-off-by: Alexander Chernavin <achernavin@netgate.com> Change-Id: I6d51459778b7145be7077badec479b2aa85960b9
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/*
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* Copyright (c) 2020 Doc.ai and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <vnet/vnet.h>
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#include <vnet/plugin/plugin.h>
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#include <vpp/app/version.h>
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#include <vnet/crypto/crypto.h>
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#include <wireguard/wireguard_send.h>
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#include <wireguard/wireguard_key.h>
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#include <wireguard/wireguard_if.h>
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#include <wireguard/wireguard.h>
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wg_main_t wg_main;
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wg_async_post_next_t wg_encrypt_async_next;
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wg_async_post_next_t wg_decrypt_async_next;
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void
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wg_set_async_mode (u32 is_enabled)
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{
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vnet_crypto_request_async_mode (is_enabled);
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if (is_enabled)
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wg_op_mode_set_ASYNC ();
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else
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wg_op_mode_unset_ASYNC ();
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}
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static void
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wireguard_register_post_node (vlib_main_t *vm)
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{
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wg_async_post_next_t *eit;
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wg_async_post_next_t *dit;
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eit = &wg_encrypt_async_next;
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dit = &wg_decrypt_async_next;
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eit->wg4_post_next =
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vnet_crypto_register_post_node (vm, "wg4-output-tun-post-node");
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eit->wg6_post_next =
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vnet_crypto_register_post_node (vm, "wg6-output-tun-post-node");
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dit->wg4_post_next =
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vnet_crypto_register_post_node (vm, "wg4-input-post-node");
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dit->wg6_post_next =
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vnet_crypto_register_post_node (vm, "wg6-input-post-node");
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}
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void
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wg_secure_zero_memory (void *v, size_t n)
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{
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static void *(*const volatile memset_v) (void *, int, size_t) = &memset;
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memset_v (v, 0, n);
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}
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static clib_error_t *
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wg_init (vlib_main_t * vm)
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{
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wg_main_t *wmp = &wg_main;
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wmp->vlib_main = vm;
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wmp->in4_fq_index = vlib_frame_queue_main_init (wg4_input_node.index, 0);
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wmp->in6_fq_index = vlib_frame_queue_main_init (wg6_input_node.index, 0);
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wmp->out4_fq_index =
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vlib_frame_queue_main_init (wg4_output_tun_node.index, 0);
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wmp->out6_fq_index =
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vlib_frame_queue_main_init (wg6_output_tun_node.index, 0);
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vlib_thread_main_t *tm = vlib_get_thread_main ();
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vec_validate_aligned (wmp->per_thread_data, tm->n_vlib_mains,
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CLIB_CACHE_LINE_BYTES);
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wg_timer_wheel_init ();
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wireguard_register_post_node (vm);
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wmp->op_mode_flags = 0;
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return (NULL);
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}
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VLIB_INIT_FUNCTION (wg_init);
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/* *INDENT-OFF* */
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VNET_FEATURE_INIT (wg4_output_tun, static) = {
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.arc_name = "ip4-output",
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.node_name = "wg4-output-tun",
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.runs_after = VNET_FEATURES ("gso-ip4"),
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};
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VNET_FEATURE_INIT (wg6_output_tun, static) = {
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.arc_name = "ip6-output",
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.node_name = "wg6-output-tun",
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.runs_after = VNET_FEATURES ("gso-ip6"),
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};
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VLIB_PLUGIN_REGISTER () =
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{
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.version = VPP_BUILD_VER,
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.description = "Wireguard Protocol",
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};
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/* *INDENT-ON* */
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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