/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> #include <vnet/adj/adj.h> #include <vnet/fib/fib_table.h> typedef struct { u8 mac_addr[6]; } mac_addr_t; static clib_error_t * virtual_ip_cmd_fn_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; vnet_main_t *vnm = vnet_get_main (); ip46_address_t next_hop, *next_hops; fib_route_path_t *rpaths; fib_prefix_t prefix; u8 mac_addr[6]; mac_addr_t *mac_addrs = 0; u32 sw_if_index; u32 i; clib_error_t *error = NULL; next_hops = NULL; rpaths = NULL; prefix.fp_len = 32; prefix.fp_proto = FIB_PROTOCOL_IP4; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; if (!unformat (line_input, "%U %U", unformat_ip4_address, &prefix.fp_addr.ip4, unformat_vnet_sw_interface, vnm, &sw_if_index)) { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, line_input); goto done; } while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "mac %U", unformat_ethernet_address, &mac_addr)) { mac_addr_t *ma; vec_add2 (mac_addrs, ma, 1); clib_memcpy (ma, mac_addr, sizeof (mac_addr)); } else if (unformat (line_input, "next-hop %U", unformat_ip4_address, &next_hop.ip4)) { vec_add1 (next_hops, next_hop); } else { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, line_input); goto done; } } if (vec_len (mac_addrs) == 0 || vec_len (mac_addrs) != vec_len (next_hops)) { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, line_input); goto done; } /* Create / delete special interface route /32's */ for (i = 0; i < vec_len (mac_addrs); i++) { fib_route_path_t *rpath; adj_nbr_add_or_lock_w_rewrite (FIB_PROTOCOL_IP4, VNET_LINK_IP4, &next_hops[i], sw_if_index, mac_addrs[i].mac_addr); vec_add2 (rpaths, rpath, 1); rpath->frp_proto = FIB_PROTOCOL_IP4; rpath->frp_addr = next_hops[i]; rpath->frp_sw_if_index = sw_if_index; rpath->frp_fib_index = ~0; rpath->frp_weight = 1; rpath->frp_label_stack = NULL; } fib_table_entry_path_add2 (0, // default FIB table &prefix, FIB_SOURCE_CLI, FIB_ENTRY_FLAG_NONE, rpaths); done: vec_free (mac_addrs); vec_free (next_hops); unformat_free (line_input); return error; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (virtual_ip_cmd_fn_command, static) = { .path = "ip virtual", .short_help = "ip virtual <addr> <interface> [mac <Mi>]+", .function = virtual_ip_cmd_fn_command_fn, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */