Files
vpp/src/plugins/wireguard/wireguard_timer.h
Alexander Chernavin 44ec846f4a wireguard: add processing of received cookie messages
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
2022-08-03 18:35:40 +00:00

82 lines
2.6 KiB
C

/*
* 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.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __included_wg_timer_h__
#define __included_wg_timer_h__
#include <vlib/vlib.h>
#include <vppinfra/clib.h>
#include <vppinfra/tw_timer_16t_2w_512sl.h>
/** WG timers */
#define foreach_wg_timer \
_(RETRANSMIT_HANDSHAKE, "RETRANSMIT HANDSHAKE") \
_(PERSISTENT_KEEPALIVE, "PERSISTENT KEEPALIVE") \
_(SEND_KEEPALIVE, "SEND KEEPALIVE") \
_(NEW_HANDSHAKE, "NEW HANDSHAKE") \
_(KEY_ZEROING, "KEY ZEROING") \
typedef enum _wg_timers
{
#define _(sym, str) WG_TIMER_##sym,
foreach_wg_timer
#undef _
WG_N_TIMERS
} wg_timers_e;
typedef struct wg_peer wg_peer_t;
void wg_timer_wheel_init ();
void wg_timers_stop (wg_peer_t * peer);
void wg_timers_data_sent (wg_peer_t * peer);
void wg_timers_data_sent_opt (wg_peer_t *peer, f64 time);
void wg_timers_data_received (wg_peer_t * peer);
void wg_timers_any_authenticated_packet_sent (wg_peer_t * peer);
void wg_timers_any_authenticated_packet_sent_opt (wg_peer_t *peer, f64 time);
void wg_timers_any_authenticated_packet_received (wg_peer_t * peer);
void wg_timers_any_authenticated_packet_received_opt (wg_peer_t *peer,
f64 time);
void wg_timers_handshake_initiated (wg_peer_t * peer);
void wg_timers_handshake_complete (wg_peer_t * peer);
void wg_timers_session_derived (wg_peer_t * peer);
void wg_timers_any_authenticated_packet_traversal (wg_peer_t * peer);
static inline bool
wg_birthdate_has_expired (f64 birthday_seconds, f64 expiration_seconds)
{
if (birthday_seconds == 0.0)
return true;
f64 now_seconds = vlib_time_now (vlib_get_main ());
return (birthday_seconds + expiration_seconds) < now_seconds;
}
static_always_inline bool
wg_birthdate_has_expired_opt (f64 birthday_seconds, f64 expiration_seconds,
f64 time)
{
return (birthday_seconds + expiration_seconds) < time;
}
#endif /* __included_wg_timer_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/