udp: add cli to dump transport ports
show udp transport ports
Dumps list of ports registered by udp transport, as opposed to udp
local, and their refcount.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: If3cbe51a7176cb89fa38b524defffbbd76af8f58
diff --git a/src/vnet/udp/udp_cli.c b/src/vnet/udp/udp_cli.c
index 1e72392..58bcbec 100644
--- a/src/vnet/udp/udp_cli.c
+++ b/src/vnet/udp/udp_cli.c
@@ -302,6 +302,98 @@
.is_mp_safe = 1,
};
+static void
+table_format_udp_transport_port_ (vlib_main_t *vm, table_t *t, int *c,
+ int port, int is_ip4)
+{
+ udp_main_t *um = &udp_main;
+ u32 refcnt;
+ u16 port_ne;
+
+ port_ne = clib_host_to_net_u16 (port);
+ refcnt = um->transport_ports_refcnt[is_ip4][port_ne];
+ if (!refcnt)
+ return;
+
+ if (!udp_is_valid_dst_port (port, is_ip4))
+ {
+ clib_warning ("Port %u is not registered refcnt %u!", port, refcnt);
+ return;
+ }
+
+ table_format_cell (t, *c, 0, "%d", port);
+ table_format_cell (t, *c, 1, is_ip4 ? "ip4" : "ip6");
+ table_format_cell (t, *c, 2, "%d", refcnt);
+
+ (*c)++;
+}
+
+static void
+table_format_udp_transport_port (vlib_main_t *vm, table_t *t, int *c, int port,
+ int ipv)
+{
+ if (ipv == -1 || ipv == 0)
+ table_format_udp_transport_port_ (vm, t, c, port, 1 /* is_ip4 */);
+ if (ipv == -1 || ipv == 1)
+ table_format_udp_transport_port_ (vm, t, c, port, 0 /* is_ip4 */);
+}
+
+static clib_error_t *
+show_udp_transport_ports (vlib_main_t *vm, unformat_input_t *input,
+ vlib_cli_command_t *cmd)
+{
+ table_t table = {}, *t = &table;
+ int ipv = -1, port = -1, c = 0;
+ clib_error_t *err = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "ip4"))
+ ipv = 0;
+ else if (unformat (input, "ip6"))
+ ipv = 1;
+ else if (unformat (input, "%d", &port))
+ ;
+ else
+ {
+ err = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ goto out;
+ }
+ }
+
+ table_add_header_col (t, 3, "port", "proto", "ref-cnt");
+
+ if (port > 65535)
+ {
+ err = clib_error_return (0, "wrong port %d", port);
+ goto out;
+ }
+
+ if (port < 0)
+ {
+ for (port = 0; port < 65536; port++)
+ table_format_udp_transport_port (vm, t, &c, port, ipv);
+ }
+ else
+ {
+ table_format_udp_transport_port (vm, t, &c, port, ipv);
+ }
+
+ vlib_cli_output (vm, "%U\n", format_table, t);
+
+out:
+ table_free (t);
+ return err;
+}
+
+VLIB_CLI_COMMAND (show_udp_transport_ports_cmd, static) = {
+ .path = "show udp transport ports",
+ .function = show_udp_transport_ports,
+ .short_help = "show udp transport ports [ip4|ip6] [<port>]",
+ .is_mp_safe = 1,
+};
+
/*
* fd.io coding-style-patch-verification: ON
*