proto: add debugging for protocol context updates

Add a new debugging level to debug updates to the protocol context.

Sample output:

<cmdline>:1:15-23: Evaluate
filter output tcp dport ssh
              ^^^^^^^^^
tcp

update transport layer protocol context:
 link layer          : none
 network layer       : ip
 transport layer     : tcp <-

Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 0c97120b..859ddaac 100644
--- a/src/main.c
+++ b/src/main.c
@@ -111,7 +111,7 @@ static void show_help(const char *name)
 "  -a/--handle			Output rule handle.\n"
 "  -I/--includepath <directory>	Add <directory> to the paths searched for include files.\n"
 #ifdef DEBUG
-"  --debug <level [,level...]>	Specify debugging level (scanner, parser, eval, netlink, all)\n"
+"  --debug <level [,level...]>	Specify debugging level (scanner, parser, eval, netlink, proto-ctx, all)\n"
 #endif
 "\n",
 	name);
@@ -139,6 +139,10 @@ static const struct {
 		.level		= DEBUG_NETLINK,
 	},
 	{
+		.name		= "proto-ctx",
+		.level		= DEBUG_PROTO_CTX,
+	},
+	{
 		.name		= "all",
 		.level		= ~0,
 	},