Refactor tctracer (#991)

Author: rafaelroquetto

bpf/common/connection_info.h

@@ -67,7 +67,7 @@ typedef struct connection_info_part {
     u8 __pad;
 } connection_info_part_t;
 
-static __always_inline void dbg_print_http_connection_info(connection_info_t *info) {
+static __always_inline void dbg_print_http_connection_info(const connection_info_t *info) {
     if (!k_bpf_debug) {
         return;
     }
@@ -216,4 +216,4 @@ static __always_inline void populate_ephemeral_info(connection_info_part_t *part
 
 static __always_inline u8 is_empty_connection_info(const connection_info_t *conn) {
     return conn->s_port == 0 && conn->d_port == 0;
-}
+}

bpf/common/protocol_defs.h

@@ -19,9 +19,11 @@
 #define EINPROGRESS 115 /* Operation now in progress */
 
 // Taken from uapi/linux/if_ether.h
-#define ETH_HLEN 14       /* Total octets in header.       */
-#define ETH_P_IP 0x0800   /* Internet Protocol packet      */
-#define ETH_P_IPV6 0x86DD /* IPv6 over bluebook            */
+#define ETH_HLEN 14         /* Total octets in header.       */
+#define ETH_P_IP 0x0800     /* Internet Protocol packet      */
+#define ETH_P_IPV6 0x86DD   /* IPv6 over bluebook            */
+#define ETH_P_8021Q 0x8100  /* 802.1Q VLAN Extended Header  */
+#define ETH_P_8021AD 0x88A8 /* 802.1ad Service VLAN */
 
 // Taken from uapi/linux/in.h
 #define IPPROTO_TCP 6  /* Transmission Control Protocol */