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-rw-r--r--src/plugins/nat/nat44_cli.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/src/plugins/nat/nat44_cli.c b/src/plugins/nat/nat44_cli.c
index 0c5b80c394e..9aaa8498e22 100644
--- a/src/plugins/nat/nat44_cli.c
+++ b/src/plugins/nat/nat44_cli.c
@@ -948,6 +948,98 @@ done:
}
static clib_error_t *
+add_lb_backend_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ snat_main_t *sm = &snat_main;
+ clib_error_t *error = 0;
+ ip4_address_t l_addr, e_addr;
+ u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0;
+ int is_add = 1;
+ int rv;
+ snat_protocol_t proto;
+ u8 proto_set = 0;
+
+ if (sm->deterministic)
+ return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "local %U:%u probability %u",
+ unformat_ip4_address, &l_addr, &l_port, &probability))
+ ;
+ else if (unformat (line_input, "local %U:%u vrf %u probability %u",
+ unformat_ip4_address, &l_addr, &l_port, &vrf_id,
+ &probability))
+ ;
+ else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
+ &e_addr, &e_port))
+ ;
+ else if (unformat (line_input, "protocol %U", unformat_snat_protocol,
+ &proto))
+ proto_set = 1;
+ else if (unformat (line_input, "del"))
+ is_add = 0;
+ else
+ {
+ error = clib_error_return (0, "unknown input: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (!l_port || !e_port)
+ {
+ error = clib_error_return (0, "local or external must be set");
+ goto done;
+ }
+
+ if (!proto_set)
+ {
+ error = clib_error_return (0, "missing protocol");
+ goto done;
+ }
+
+ rv =
+ nat44_lb_static_mapping_add_del_local (e_addr, (u16) e_port, l_addr,
+ l_port, proto, vrf_id, probability,
+ is_add);
+
+ switch (rv)
+ {
+ case VNET_API_ERROR_INVALID_VALUE:
+ error = clib_error_return (0, "External is not load-balancing static "
+ "mapping.");
+ goto done;
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ error = clib_error_return (0, "Mapping or back-end not exist.");
+ goto done;
+ case VNET_API_ERROR_VALUE_EXIST:
+ error = clib_error_return (0, "Back-end already exist.");
+ goto done;
+ case VNET_API_ERROR_FEATURE_DISABLED:
+ error =
+ clib_error_return (0, "Available only for endpoint-dependent mode.");
+ goto done;
+ case VNET_API_ERROR_UNSPECIFIED:
+ error = clib_error_return (0, "At least two back-ends must remain");
+ goto done;
+ default:
+ break;
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
nat44_show_static_mappings_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
@@ -1936,6 +2028,24 @@ VLIB_CLI_COMMAND (add_lb_static_mapping_command, static) = {
/*?
* @cliexpar
+ * @cliexstart{nat44 add load-balancing static mapping}
+ * Modify service load balancing using NAT44
+ * To add new back-end server 10.100.10.30:8080 for service load balancing
+ * static mapping with external IP address 1.2.3.4 and TCP port 80 use:
+ * vpp# nat44 add load-balancing back-end protocol tcp external 1.2.3.4:80 local 10.100.10.30:8080 probability 25
+ * @cliexend
+?*/
+VLIB_CLI_COMMAND (add_lb_backend_command, static) = {
+ .path = "nat44 add load-balancing back-end",
+ .function = add_lb_backend_command_fn,
+ .short_help =
+ "nat44 add load-balancing back-end protocol tcp|udp "
+ "external <addr>:<port> local <addr>:<port> [vrf <table-id>] "
+ "probability <n> [del]",
+};
+
+/*?
+ * @cliexpar
* @cliexstart{show nat44 static mappings}
* Show NAT44 static mappings.
* vpp# show nat44 static mappings