/* * 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. */ /* * ip/ip_lookup.c: ip4/6 adjacency and lookup table management * * Copyright (c) 2008 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include /** * @file * @brief IPv4 and IPv6 adjacency and lookup table management. * */ static clib_error_t * ip_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) { vec_validate_init_empty (ip4_main. lookup_main.if_address_pool_index_by_sw_if_index, sw_if_index, ~0); vec_validate_init_empty (ip6_main. lookup_main.if_address_pool_index_by_sw_if_index, sw_if_index, ~0); return (NULL); } VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ip_sw_interface_add_del); void ip_lookup_init (ip_lookup_main_t * lm, u32 is_ip6) { if (!lm->fib_result_n_bytes) lm->fib_result_n_bytes = sizeof (uword); lm->is_ip6 = is_ip6; mhash_init (&lm->prefix_to_if_prefix_index, sizeof (uword), sizeof (ip_interface_prefix_key_t)); if (is_ip6) { lm->format_address_and_length = format_ip6_address_and_length; mhash_init (&lm->address_to_if_address_index, sizeof (uword), sizeof (ip6_address_fib_t)); } else { lm->format_address_and_length = format_ip4_address_and_length; mhash_init (&lm->address_to_if_address_index, sizeof (uword), sizeof (ip4_address_fib_t)); } { int i; /* Setup all IP protocols to be punted and builtin-unknown. */ for (i = 0; i < 256; i++) { lm->local_next_by_ip_protocol[i] = IP_LOCAL_NEXT_PUNT; lm->builtin_protocol_by_ip_protocol[i] = IP_BUILTIN_PROTOCOL_UNKNOWN; } lm->local_next_by_ip_protocol[IP_PROTOCOL_UDP] = IP_LOCAL_NEXT_UDP_LOOKUP; lm->local_next_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 : IP_PROTOCOL_ICMP] = IP_LOCAL_NEXT_ICMP; lm->builtin_protocol_by_ip_protocol[IP_PROTOCOL_UDP] = IP_BUILTIN_PROTOCOL_UDP; lm->builtin_protocol_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 : IP_PROTOCOL_ICMP] = IP_BUILTIN_PROTOCOL_ICMP; } } u8 * format_ip_flow_hash_config (u8 * s, va_list * args) { flow_hash_config_t flow_hash_config = va_arg (*args, u32); #define _(n, b, v) \ if (flow_hash_config & v) \ s = format (s, "%s ", #n); foreach_flow_hash_bit; #undef _ return s; } uword unformat_ip_flow_hash_config (unformat_input_t *input, va_list *args) { flow_hash_config_t *flow_hash_config = va_arg (*args, flow_hash_config_t *); uword start_index = unformat_check_input (input); int matched_once = 0; if (unformat (input, "default")) { *flow_hash_config = IP_FLOW_HASH_DEFAULT; return 1; } while (!unformat_is_eof (input) && !is_white_space (unformat_peek_input (input))) { if (unformat (input, "%_,")) ; #define _(a, b, c) \ else if (unformat (input, "%_" #a)) \ { \ *flow_hash_config |= c; \ matched_once = 1; \ } foreach_flow_hash_bit #undef _ else { /* Roll back to our start */ input->index = start_index; return 0; } } return matched_once; } u8 * format_ip_adjacency_packet_data (u8 * s, va_list * args) { u8 *packet_data = va_arg (*args, u8 *); u32 n_packet_data_bytes = va_arg (*args, u32); s = format (s, "%U", format_hex_bytes, packet_data, n_packet_data_bytes); return s; } static uword unformat_dpo (unformat_input_t * input, va_list * args) { dpo_id_t *dpo = va_arg (*args, dpo_id_t *); fib_protocol_t fp = va_arg (*args, int); dpo_proto_t proto; proto = fib_proto_to_dpo (fp); if (unformat (input, "drop")) dpo_copy (dpo, drop_dpo_get (proto)); else if (unformat (input, "punt")) dpo_copy (dpo, punt_dpo_get (proto)); else if (unformat (input, "local")) receive_dpo_add_or_lock (proto, ~0, NULL, dpo); else if (unformat (input, "null-send-unreach")) ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_UNREACH, dpo); else if (unformat (input, "null-send-prohibit")) ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_PROHIBIT, dpo); else if (unformat (input, "null")) ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_NONE, dpo); else if (unformat (input, "classify")) { u32 classify_table_index; if (!unformat (input, "%d", &classify_table_index)) { clib_warning ("classify adj must specify table index"); return 0; } dpo_set (dpo, DPO_CLASSIFY, proto, classify_dpo_create (proto, classify_table_index)); } else return 0; return 1; } const ip46_address_t zero_addr = { .as_u64 = { 0, 0}, }; bool fib_prefix_validate (const fib_prefix_t *prefix) { if (FIB_PROTOCOL_IP4 == prefix->fp_proto) { if (prefix->fp_len > 32) { return false; } } if (FIB_PROTOCOL_IP6 == prefix->fp_proto) { if (prefix->fp_len > 128) { return false; } } return true; } static clib_error_t * vnet_ip_route_cmd (vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; u32 table_id, is_del, fib_index, payload_proto; dpo_id_t dpo = DPO_INVALID, *dpos = NULL; fib_route_path_t *rpaths = NULL, rpath; fib_prefix_t *prefixs = NULL, pfx; clib_error_t *error = NULL; f64 count; int i; is_del = 0; table_id = 0; count = 1; clib_memset (&pfx, 0, sizeof (pfx)); /* Get a line of input. */ if (!unformat_user (main_input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { clib_memset (&rpath, 0, sizeof (rpath)); if (unformat (line_input, "table %d", &table_id)) ; else if (unformat (line_input, "count %f", &count)) ; else if (unformat (line_input, "%U/%d", unformat_ip4_address, &pfx.fp_addr.ip4, &pfx.fp_len)) { payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP4; vec_add1 (prefixs, pfx); } else if (unformat (line_input, "%U/%d", unformat_ip6_address, &pfx.fp_addr.ip6, &pfx.fp_len)) { payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP6; vec_add1 (prefixs, pfx); } else if (unformat (line_input, "via %U", unformat_fib_route_path, &rpath, &payload_proto)) { vec_add1 (rpaths, rpath); } else if (vec_len (prefixs) > 0 && unformat (line_input, "via %U", unformat_dpo, &dpo, prefixs[0].fp_proto)) { vec_add1 (dpos, dpo); } else if (unformat (line_input, "del")) is_del = 1; else if (unformat (line_input, "add")) is_del = 0; else { error = unformat_parse_error (line_input); goto done; } } if (vec_len (prefixs) == 0) { error = clib_error_return (0, "expected ip4/ip6 destination address/length."); goto done; } if (!is_del && vec_len (rpaths) + vec_len (dpos) == 0) { error = clib_error_return (0, "expected paths."); goto done; } if (~0 == table_id) { /* * if no table_id is passed we will manipulate the default */ fib_index = 0; } else { fib_index = fib_table_find (prefixs[0].fp_proto, table_id); if (~0 == fib_index) { error = clib_error_return (0, "Nonexistent table id %d", table_id); goto done; } } for (i = 0; i < vec_len (prefixs); i++) { if (is_del && 0 == vec_len (rpaths)) { fib_table_entry_delete (fib_index, &prefixs[i], FIB_SOURCE_CLI); } else if (!is_del && 1 == vec_len (dpos)) { fib_table_entry_special_dpo_add (fib_index, &prefixs[i], FIB_SOURCE_CLI, FIB_ENTRY_FLAG_EXCLUSIVE, &dpos[0]); dpo_reset (&dpos[0]); } else if (vec_len (dpos) > 0) { error = clib_error_return (0, "Load-balancing over multiple special adjacencies is unsupported"); goto done; } else if (0 < vec_len (rpaths)) { u32 k, n; f64 t[2]; n = count; t[0] = vlib_time_now (vm); for (k = 0; k < n; k++) { fib_prefix_t rpfx = { .fp_len = prefixs[i].fp_len, .fp_proto = prefixs[i].fp_proto, .fp_addr = prefixs[i].fp_addr, }; if (!fib_prefix_validate (&rpfx)) { vlib_cli_output (vm, "Invalid prefix len: %d", rpfx.fp_len); continue; } if (is_del) fib_table_entry_path_remove2 (fib_index, &rpfx, FIB_SOURCE_CLI, rpaths); else fib_table_entry_path_add2 (fib_index, &rpfx, FIB_SOURCE_CLI, FIB_ENTRY_FLAG_NONE, rpaths); fib_prefix_increment (&prefixs[i]); } t[1] = vlib_time_now (vm); if (count > 1) vlib_cli_output (vm, "%.6e routes/sec", count / (t[1] - t[0])); } else { error = clib_error_return (0, "Don't understand what you want..."); goto done; } } done: vec_free (dpos); vec_free (prefixs); vec_free (rpaths); unformat_free (line_input); return error; } clib_error_t * vnet_ip_table_cmd (vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_command_t * cmd, fib_protocol_t fproto) { unformat_input_t _line_input, *line_input = &_line_input; clib_error_t *error = NULL; u32 table_id, is_add; u8 *name = NULL; is_add = 1; table_id = ~0; /* Get a line of input. */ if (!unformat_user (main_input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%d", &table_id)) ; else if (unformat (line_input, "del")) is_add = 0; else if (unformat (line_input, "add")) is_add = 1; else if (unformat (line_input, "name %s", &name)) ; else { error = unformat_parse_error (line_input); goto done; } } if (0 == table_id) { error = clib_error_return (0, "Can't change the default table"); goto done; } else { if (is_add) { if (~0 == table_id) { table_id = ip_table_get_unused_id (fproto); vlib_cli_output (vm, "%u\n", table_id); } ip_table_create (fproto, table_id, 0, name); } else { if (~0 == table_id) { error = clib_error_return (0, "No table id"); goto done; } ip_table_delete (fproto, table_id, 0); } } done: vec_free (name); unformat_free (line_input); return error; } clib_error_t * vnet_ip4_table_cmd (vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_command_t * cmd) { return (vnet_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP4)); } clib_error_t * vnet_ip6_table_cmd (vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_command_t * cmd) { return (vnet_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP6)); } clib_error_t * vnet_show_ip_table_cmd (vlib_main_t *vm, unformat_input_t *main_input, vlib_cli_command_t *cmd, fib_protocol_t fproto) { unformat_input_t _line_input, *line_input = &_line_input; fib_table_t *fib, *fibs; clib_error_t *error = NULL; u32 table_id = ~0, fib_index; /* Get a line of input. */ if (unformat_user (main_input, unformat_line_input, line_input)) { while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%d", &table_id)) ; else { error = unformat_parse_error (line_input); goto done; } } unformat_free (line_input); } fibs = (fproto == FIB_PROTOCOL_IP4) ? ip4_main.fibs : ip6_main.fibs; if (table_id != (u32) ~0) { fib_index = fib_table_find (fproto, table_id); if (fib_index == (u32) ~0) { error = clib_error_return (0, "Couldn't find table with table_id %u", table_id); goto done; } fib = fib_table_get (fib_index, fproto); vlib_cli_output (vm, "[%u] table_id:%u %v", fib->ft_index, fib->ft_table_id, fib->ft_desc); } else { pool_foreach (fib, fibs) vlib_cli_output (vm, "[%u] table_id:%u %v", fib->ft_index, fib->ft_table_id, fib->ft_desc); } done: return error; } clib_error_t * vnet_show_ip4_table_cmd (vlib_main_t *vm, unformat_input_t *main_input, vlib_cli_command_t *cmd) { return (vnet_show_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP4)); } clib_error_t * vnet_show_ip6_table_cmd (vlib_main_t *vm, unformat_input_t *main_input, vlib_cli_command_t *cmd) { return (vnet_show_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP6)); } VLIB_CLI_COMMAND (vlib_cli_ip_command, static) = { .path = "ip", .short_help = "Internet protocol (IP) commands", }; VLIB_CLI_COMMAND (vlib_cli_ip6_command, static) = { .path = "ip6", .short_help = "Internet protocol version 6 (IPv6) commands", }; VLIB_CLI_COMMAND (vlib_cli_show_ip_command, static) = { .path = "show ip", .short_help = "Internet protocol (IP) show commands", }; VLIB_CLI_COMMAND (vlib_cli_show_ip6_command, static) = { .path = "show ip6", .short_help = "Internet protocol version 6 (IPv6) show commands", }; /*? * This command is used to add or delete IPv4 or IPv6 routes. All * IP Addresses ('/', * '' and '') * can be IPv4 or IPv6, but all must be of the same form in a single * command. To display the current set of routes, use the commands * 'show ip fib' and 'show ip6 fib'. * * @cliexpar * Example of how to add a straight forward static route: * @cliexcmd{ip route add 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0} * Example of how to delete a straight forward static route: * @cliexcmd{ip route del 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0} * Mainly for route add/del performance testing, one can add or delete * multiple routes by adding 'count N' to the previous item: * @cliexcmd{ip route add count 10 7.0.0.0/24 via 6.0.0.1 GigabitEthernet2/0/0} * Add multiple routes for the same destination to create equal-cost multipath: * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0} * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0} * For unequal-cost multipath, specify the desired weights. This * combination of weights results in 3/4 of the traffic following the * second path, 1/4 following the first path: * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0 weight 1} * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0 weight 3} * To add a route to a particular FIB table (VRF), use: * @cliexcmd{ip route add 172.16.24.0/24 table 7 via GigabitEthernet2/0/0} * To add a route to drop the traffic: * @cliexcmd{ip route add 172.16.24.0/24 table 100 via 127.0.0.1 drop} ?*/ VLIB_CLI_COMMAND (ip_route_command, static) = { .path = "ip route", .short_help = "ip route [add|del] [count ] / [table " "] via [next-hop-address] [next-hop-interface] " "[next-hop-table ] [weight ] [preference " "] [udp-encap ] [ip4-lookup-in-table ] " "[ip6-lookup-in-table ] [mpls-lookup-in-table ] " "[resolve-via-host] [resolve-via-connected] [rx-ip4|rx-ip6 " "] [out-labels ] [drop]", .function = vnet_ip_route_cmd, .is_mp_safe = 1, }; /*? * This command is used to add or delete IPv4 Tables. All * Tables must be explicitly added before that can be used. Creating a * table will add both unicast and multicast FIBs * ?*/ VLIB_CLI_COMMAND (ip4_table_command, static) = { .path = "ip table", .short_help = "ip table [add|del] ", .function = vnet_ip4_table_cmd, }; /*? * This command is used to add or delete IPv4 Tables. All * Tables must be explicitly added before that can be used. Creating a * table will add both unicast and multicast FIBs * ?*/ VLIB_CLI_COMMAND (ip6_table_command, static) = { .path = "ip6 table", .short_help = "ip6 table [add|del] ", .function = vnet_ip6_table_cmd, }; VLIB_CLI_COMMAND (show_ip4_table_command, static) = { .path = "show ip table", .short_help = "show ip table ", .function = vnet_show_ip4_table_cmd, }; VLIB_CLI_COMMAND (show_ip6_table_command, static) = { .path = "show ip6 table", .short_help = "show ip6 table ", .function = vnet_show_ip6_table_cmd, }; static clib_error_t * ip_table_bind_cmd (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd, fib_protocol_t fproto) { vnet_main_t *vnm = vnet_get_main (); clib_error_t *error = 0; u32 sw_if_index, table_id; int rv; sw_if_index = ~0; if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { error = clib_error_return (0, "unknown interface `%U'", format_unformat_error, input); goto done; } if (unformat (input, "%d", &table_id)) ; else { error = clib_error_return (0, "expected table id `%U'", format_unformat_error, input); goto done; } rv = ip_table_bind (fproto, sw_if_index, table_id); if (VNET_API_ERROR_ADDRESS_FOUND_FOR_INTERFACE == rv) { error = clib_error_return (0, "IP addresses are still present on %U", format_vnet_sw_if_index_name, vnet_get_main(), sw_if_index); } else if (VNET_API_ERROR_NO_SUCH_FIB == rv) { error = clib_error_return (0, "no such table %d", table_id); } else if (0 != rv) { error = clib_error_return (0, "unknown error"); } done: return error; } static clib_error_t * ip4_table_bind_cmd (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { return (ip_table_bind_cmd (vm , input, cmd, FIB_PROTOCOL_IP4)); } static clib_error_t * ip6_table_bind_cmd (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { return (ip_table_bind_cmd (vm , input, cmd, FIB_PROTOCOL_IP6)); } /*? * Place the indicated interface into the supplied IPv4 FIB table (also known * as a VRF). The FIB table must be created using "ip table add" already. To * display the current IPv4 FIB table, use the command 'show ip fib'. * FIB table will only be displayed if a route has been added to the table, or * an IP Address is assigned to an interface in the table (which adds a route * automatically). * * @note IP addresses added after setting the interface IP table are added to * the indicated FIB table. If an IP address is added prior to changing the * table then this is an error. The control plane must remove these addresses * first and then change the table. VPP will not automatically move the * addresses from the old to the new table as it does not know the validity * of such a change. * * @cliexpar * Example of how to add an interface to an IPv4 FIB table (where 2 is the table-id): * @cliexcmd{set interface ip table GigabitEthernet2/0/0 2} ?*/ VLIB_CLI_COMMAND (set_interface_ip_table_command, static) = { .path = "set interface ip table", .function = ip4_table_bind_cmd, .short_help = "set interface ip table ", }; /*? * Place the indicated interface into the supplied IPv6 FIB table (also known * as a VRF). The FIB table must be created using "ip6 table add" already. To * display the current IPv6 FIB table, use the command 'show ip6 fib'. * FIB table will only be displayed if a route has been added to the table, or * an IP Address is assigned to an interface in the table (which adds a route * automatically). * * @note IP addresses added after setting the interface IP table are added to * the indicated FIB table. If an IP address is added prior to changing the * table then this is an error. The control plane must remove these addresses * first and then change the table. VPP will not automatically move the * addresses from the old to the new table as it does not know the validity * of such a change. * * @cliexpar * Example of how to add an interface to an IPv6 FIB table (where 2 is the table-id): * @cliexcmd{set interface ip6 table GigabitEthernet2/0/0 2} ?*/ VLIB_CLI_COMMAND (set_interface_ip6_table_command, static) = { .path = "set interface ip6 table", .function = ip6_table_bind_cmd, .short_help = "set interface ip6 table " }; clib_error_t * vnet_ip_mroute_cmd (vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; fib_route_path_t rpath, *rpaths = NULL; clib_error_t *error = NULL; u32 table_id, is_del, payload_proto; mfib_prefix_t pfx; u32 fib_index; mfib_entry_flags_t eflags = 0; u32 gcount, scount, ss, gg, incr; f64 timet[2]; u32 rpf_id = MFIB_RPF_ID_NONE; gcount = scount = 1; is_del = 0; table_id = 0; clib_memset (&pfx, 0, sizeof (pfx)); clib_memset (&rpath, 0, sizeof (rpath)); rpath.frp_sw_if_index = ~0; /* Get a line of input. */ if (!unformat_user (main_input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "table %d", &table_id)) ; else if (unformat (line_input, "del")) is_del = 1; else if (unformat (line_input, "add")) is_del = 0; else if (unformat (line_input, "rpf-id %d", &rpf_id)) ; else if (unformat (line_input, "scount %d", &scount)) ; else if (unformat (line_input, "gcount %d", &gcount)) ; else if (unformat (line_input, "%U %U", unformat_ip4_address, &pfx.fp_src_addr.ip4, unformat_ip4_address, &pfx.fp_grp_addr.ip4)) { payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP4; pfx.fp_len = 64; } else if (unformat (line_input, "%U %U", unformat_ip6_address, &pfx.fp_src_addr.ip6, unformat_ip6_address, &pfx.fp_grp_addr.ip6)) { payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP6; pfx.fp_len = 256; } else if (unformat (line_input, "%U/%d", unformat_ip4_address, &pfx.fp_grp_addr.ip4, &pfx.fp_len)) { clib_memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4)); payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP4; } else if (unformat (line_input, "%U/%d", unformat_ip6_address, &pfx.fp_grp_addr.ip6, &pfx.fp_len)) { clib_memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6)); payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP6; } else if (unformat (line_input, "%U", unformat_ip4_address, &pfx.fp_grp_addr.ip4)) { clib_memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4)); payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP4; pfx.fp_len = 32; } else if (unformat (line_input, "%U", unformat_ip6_address, &pfx.fp_grp_addr.ip6)) { clib_memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6)); payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP6; pfx.fp_len = 128; } else if (unformat (line_input, "via local Forward")) { clib_memset (&rpath.frp_addr, 0, sizeof (rpath.frp_addr)); rpath.frp_sw_if_index = ~0; rpath.frp_weight = 1; rpath.frp_flags |= FIB_ROUTE_PATH_LOCAL; /* * set the path proto appropriately for the prefix */ rpath.frp_proto = fib_proto_to_dpo (pfx.fp_proto); rpath.frp_mitf_flags = MFIB_ITF_FLAG_FORWARD; vec_add1 (rpaths, rpath); } else if (unformat (line_input, "via %U", unformat_fib_route_path, &rpath, &payload_proto)) { vec_add1 (rpaths, rpath); } else if (unformat (line_input, "%U", unformat_mfib_entry_flags, &eflags)) ; else { error = unformat_parse_error (line_input); goto done; } } if (~0 == table_id) { /* * if no table_id is passed we will manipulate the default */ fib_index = 0; } else { fib_index = mfib_table_find (pfx.fp_proto, table_id); if (~0 == fib_index) { error = clib_error_return (0, "Nonexistent table id %d", table_id); goto done; } } timet[0] = vlib_time_now (vm); if (FIB_PROTOCOL_IP4 == pfx.fp_proto) { incr = 1 << (32 - (pfx.fp_len % 32)); } else { incr = 1 << (128 - (pfx.fp_len % 128)); } for (ss = 0; ss < scount; ss++) { for (gg = 0; gg < gcount; gg++) { if (is_del && 0 == vec_len (rpaths)) { /* no path provided => route delete */ mfib_table_entry_delete (fib_index, &pfx, MFIB_SOURCE_CLI); } else if (eflags || (MFIB_RPF_ID_NONE != rpf_id)) { mfib_table_entry_update (fib_index, &pfx, MFIB_SOURCE_CLI, rpf_id, eflags); } else { if (is_del) mfib_table_entry_path_remove (fib_index, &pfx, MFIB_SOURCE_CLI, rpaths); else mfib_table_entry_path_update (fib_index, &pfx, MFIB_SOURCE_CLI, MFIB_ENTRY_FLAG_NONE, rpaths); } if (FIB_PROTOCOL_IP4 == pfx.fp_proto) { pfx.fp_grp_addr.ip4.as_u32 = clib_host_to_net_u32 (incr + clib_net_to_host_u32 (pfx. fp_grp_addr.ip4. as_u32)); } else { int bucket = (incr < 64 ? 0 : 1); pfx.fp_grp_addr.ip6.as_u64[bucket] = clib_host_to_net_u64 (incr + clib_net_to_host_u64 (pfx. fp_grp_addr.ip6.as_u64 [bucket])); } } if (FIB_PROTOCOL_IP4 == pfx.fp_proto) { pfx.fp_src_addr.ip4.as_u32 = clib_host_to_net_u32 (1 + clib_net_to_host_u32 (pfx.fp_src_addr. ip4.as_u32)); } else { pfx.fp_src_addr.ip6.as_u64[1] = clib_host_to_net_u64 (1 + clib_net_to_host_u64 (pfx.fp_src_addr. ip6.as_u64[1])); } } timet[1] = vlib_time_now (vm); if (scount > 1 || gcount > 1) vlib_cli_output (vm, "%.6e routes/sec", (scount * gcount) / (timet[1] - timet[0])); done: vec_free (rpaths); unformat_free (line_input); return error; } /*? * This command is used to add or delete IPv4 or IPv6 multicast routes. All * IP Addresses ('/', * '' and '') * can be IPv4 or IPv6, but all must be of the same form in a single * command. To display the current set of routes, use the commands * 'show ip mfib' and 'show ip6 mfib'. * The full set of support flags for interfaces and route is shown via; * 'show mfib route flags' and 'show mfib itf flags' * respectively. * @cliexpar * Example of how to add a forwarding interface to a route (and create the * route if it does not exist) * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/0 Forward} * Example of how to add an accepting interface to a route (and create the * route if it does not exist) * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/1 Accept} * Example of changing the route's flags to send signals via the API * @cliexcmd{ip mroute add 232.1.1.1 Signal} ?*/ VLIB_CLI_COMMAND (ip_mroute_command, static) = { .path = "ip mroute", .short_help = "ip mroute [add|del] / [table ] [rpf-id ] [via [],", .function = vnet_ip_mroute_cmd, .is_mp_safe = 1, }; /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */