+static clib_error_t *
+nat44_enable_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ snat_main_t *sm = &snat_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = 0;
+
+ nat44_config_t c = { 0 };
+ u8 mode_set = 0;
+
+ // TODO: check this also inside the function so it can be
+ // safely called from anyplace, also sanity checking required
+ if (sm->enabled)
+ return clib_error_return (0, "nat44 already enabled");
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ {
+ if (nat44_plugin_enable (c) != 0)
+ return clib_error_return (0, "nat44 enable failed");
+ return 0;
+ }
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (!mode_set && unformat (line_input, "static-mapping-only"))
+ {
+ mode_set = 1;
+ c.static_mapping_only = 1;
+ if (unformat (line_input, "connection-tracking"))
+ {
+ c.connection_tracking = 1;
+ }
+ }
+ else if (!mode_set && unformat (line_input, "out2in-dpo"))
+ {
+ mode_set = 1;
+ c.out2in_dpo = 1;
+ }
+ else if (!mode_set && unformat (line_input, "endpoint-dependent"))
+ {
+ mode_set = 1;
+ c.endpoint_dependent = 1;
+ }
+ else if (unformat (input, "inside-vrf %u", &c.inside_vrf));
+ else if (unformat (input, "outside-vrf %u", &c.outside_vrf));
+ else if (unformat (input, "users %u", &c.users));
+ else if (unformat (input, "user-memory %u", &c.user_memory));
+ else if (unformat (input, "sessions %u", &c.sessions));
+ else if (unformat (input, "session-memory %u", &c.session_memory));
+ else if (unformat (input, "user-sessions %u", &c.user_sessions));
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (!(c.sessions && c.session_memory))
+ {
+ error =
+ clib_error_return (0,
+ "either number of sessions or size of the memory is required");
+ goto done;
+ }
+
+ if (nat44_plugin_enable (c) != 0)
+ error = clib_error_return (0, "nat44 enable failed");
+done:
+ unformat_free (line_input);
+ return error;
+}
+
+static clib_error_t *
+nat44_disable_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ snat_main_t *sm = &snat_main;
+ clib_error_t *error = 0;
+
+ if (sm->enabled)
+ return clib_error_return (0, "nat44 already disabled");
+
+ if (nat44_plugin_disable () != 0)
+ error = clib_error_return (0, "nat44 disable failed");
+
+ return error;
+}
+