made header encryption indicator 8-bit type

4 years ago · 5972f5ddff
3 changed files with 6 additions and 4 deletions
--- a/header_encryption.c
+++ b/header_encryption.c
@ -44,7 +44,7 @@ uint32_t packet_header_decrypt (uint8_t packet[], uint8_t packet_len,
 }


-int32_t packet_header_decrypt_if_required (uint8_t packet[], uint16_t packet_len,
+int8_t packet_header_decrypt_if_required (uint8_t packet[], uint16_t packet_len,
 					  struct sn_community *communities) {

 	struct sn_community *c, *tmp;
--- a/header_encryption.h
+++ b/header_encryption.h
@ -23,7 +23,7 @@ uint32_t packet_header_decrypt (uint8_t packet[], uint8_t packet_len,
                                char * community_name, he_context_t * ctx);


-int32_t packet_header_decrypt_if_required (uint8_t packet[], uint16_t packet_len,
+int8_t packet_header_decrypt_if_required (uint8_t packet[], uint16_t packet_len,
                                          struct sn_community * communities);


--- a/sn_utils.c
+++ b/sn_utils.c
@ -393,6 +393,8 @@ static int process_udp(n2n_sn_t *sss,
               ntohs(sender_sock->sin_port));

    he = packet_header_decrypt_if_required (udp_buf, udp_size, sss->communities);
+    if (he < 0)
+	return -1; /* something wrong with packet decryption */

    /* Use decode_common() to determine the kind of packet then process it:
     *