Make stats of reordered packets

1 files changed, 6 insertions, 2 deletions

diff --git a/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c b/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c
index ee44200..670d09f 100644
--- a/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c
+++ b/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c
@@ -167,7 +167,7 @@ static bool method_encrypt(UNUSED fastd_peer_t *peer, fastd_method_session_state
 }
 
 /** Performs validation and decryption of a packet */
-static bool method_decrypt(fastd_peer_t *peer, fastd_method_session_state_t *session, fastd_buffer_t *out, fastd_buffer_t in) {
+static bool method_decrypt(fastd_peer_t *peer, fastd_method_session_state_t *session, fastd_buffer_t *out, fastd_buffer_t in, bool *reordered) {
 	if (in.len < COMMON_HEADBYTES)
 		return false;
 
@@ -201,7 +201,11 @@ static bool method_decrypt(fastd_peer_t *peer, fastd_method_session_state_t *ses
 
 	fastd_buffer_free(in);
 
-	if (!fastd_method_reorder_check(peer, &session->common, in_nonce, age)) {
+	fastd_tristate_t reorder_check = fastd_method_reorder_check(peer, &session->common, in_nonce, age);
+	if (reorder_check.set) {
+		*reordered = reorder_check.state;
+	}
+	else {
 		fastd_buffer_free(*out);
 		*out = fastd_buffer_alloc(crypto_secretbox_xsalsa20poly1305_ZEROBYTES, 0, 0);
 	}