src: add network statistics via `-s network'

This patch adds networks statistics that you can check via
`conntrackd -s network'. This information is useful for
trouble-shooting.

This patch replaces several log messages that can be triggered in
runtime. The idea behind this patch is to avoid log message flooding
under errors.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 18 insertions, 2 deletions

diff --git a/src/main.c b/src/main.c
index f811acf..022915d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -43,7 +43,7 @@ static const char usage_client_commands[] =
 	"  -i, display content of the internal cache\n"
 	"  -e, display the content of the external cache\n"
 	"  -k, kill conntrack daemon\n"
-	"  -s, dump statistics\n"
+	"  -s  [|network], dump statistics\n"
 	"  -R, resync with kernel conntrack table\n"
 	"  -n, request resync with other node (only FT-FW and NOTRACK modes)\n"
 	"  -x, dump cache in XML format (requires -i or -e)"
@@ -155,7 +155,23 @@ int main(int argc, char *argv[])
 			break;
 		case 's':
 			set_operation_mode(&type, REQUEST, argv);
-			action = STATS;
+			/* we've got a parameter */
+			if (i+1 < argc && argv[i+1][0] != '-') {
+				if (strncmp(argv[i+1], "network",
+					    strlen(argv[i+1])) == 0) {
+					action = STATS_NETWORK;
+					i++;
+				} else {
+					fprintf(stderr, "ERROR: unknown "
+							"parameter `%s' for "
+							"option `-s'\n",
+							argv[i+1]);
+					exit(EXIT_FAILURE);
+				}
+			} else {
+				/* default to general statistics */
+				action = STATS;
+			}
 			break;
 		case 'S':
 			fprintf(stderr, "WARNING: -S option is obsolete. "