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authorAlexander Chernavin <achernavin@netgate.com>2022-07-20 12:43:42 +0000
committerFan Zhang <roy.fan.zhang@intel.com>2022-08-08 14:24:06 +0000
commitce91af8ad27e5ddef1e1f8316129bfcaa3de9ef6 (patch)
tree42fa54977a8b413e43d7b03f27ce8a256ad8f109 /src/plugins/wireguard/wireguard_cookie.h
parent03aae9637922023dd77955cb15caafb7ce309200 (diff)
wireguard: add dos mitigation support
Type: feature With this change: - if the number of received handshake messages exceeds the limit calculated based on the peers number, under load state will activate; - if being under load a handshake message with a valid mac1 is received, but mac2 is invalid, a cookie reply will be sent. Also, cover these with tests. Signed-off-by: Alexander Chernavin <achernavin@netgate.com> Change-Id: I3003570a9cf807cfb0b5145b89a085455c30e717
Diffstat (limited to 'src/plugins/wireguard/wireguard_cookie.h')
-rw-r--r--src/plugins/wireguard/wireguard_cookie.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/plugins/wireguard/wireguard_cookie.h b/src/plugins/wireguard/wireguard_cookie.h
index e4bea90f854..9298ece8db5 100644
--- a/src/plugins/wireguard/wireguard_cookie.h
+++ b/src/plugins/wireguard/wireguard_cookie.h
@@ -82,6 +82,11 @@ typedef struct cookie_checker
void cookie_maker_init (cookie_maker_t *, const uint8_t[COOKIE_INPUT_SIZE]);
void cookie_checker_update (cookie_checker_t *, uint8_t[COOKIE_INPUT_SIZE]);
+void cookie_checker_create_payload (vlib_main_t *vm, cookie_checker_t *cc,
+ message_macs_t *cm,
+ uint8_t nonce[COOKIE_NONCE_SIZE],
+ uint8_t ecookie[COOKIE_ENCRYPTED_SIZE],
+ ip46_address_t *ip, u16 udp_port);
bool cookie_maker_consume_payload (vlib_main_t *vm, cookie_maker_t *cp,
uint8_t nonce[COOKIE_NONCE_SIZE],
uint8_t ecookie[COOKIE_ENCRYPTED_SIZE]);