| /* |
| * 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 managment |
| * |
| * 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 <vnet/ip/ip.h> |
| #include <vnet/adj/adj.h> |
| #include <vnet/fib/fib_table.h> |
| #include <vnet/fib/ip4_fib.h> |
| #include <vnet/fib/ip6_fib.h> |
| #include <vnet/mpls/mpls.h> |
| #include <vnet/mfib/mfib_table.h> |
| #include <vnet/dpo/drop_dpo.h> |
| #include <vnet/dpo/classify_dpo.h> |
| #include <vnet/dpo/punt_dpo.h> |
| #include <vnet/dpo/receive_dpo.h> |
| #include <vnet/dpo/ip_null_dpo.h> |
| #include <vnet/dpo/l3_proxy_dpo.h> |
| #include <vnet/ip/ip6_neighbor.h> |
| |
| /** |
| * @file |
| * @brief IPv4 and IPv6 adjacency and lookup table managment. |
| * |
| */ |
| |
| clib_error_t * |
| ip_interface_address_add_del (ip_lookup_main_t * lm, |
| u32 sw_if_index, |
| void *addr_fib, |
| u32 address_length, |
| u32 is_del, u32 * result_if_address_index) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| ip_interface_address_t *a, *prev, *next; |
| uword *p = mhash_get (&lm->address_to_if_address_index, addr_fib); |
| |
| vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index, |
| sw_if_index, ~0); |
| a = p ? pool_elt_at_index (lm->if_address_pool, p[0]) : 0; |
| |
| /* Verify given length. */ |
| if ((a && (address_length != a->address_length)) || |
| (address_length == 0) || |
| (lm->is_ip6 && address_length > 128) || |
| (!lm->is_ip6 && address_length > 32)) |
| { |
| vnm->api_errno = VNET_API_ERROR_ADDRESS_LENGTH_MISMATCH; |
| return clib_error_create |
| ("%U wrong length (expected %d) for interface %U", |
| lm->format_address_and_length, addr_fib, |
| address_length, a ? a->address_length : -1, |
| format_vnet_sw_if_index_name, vnm, sw_if_index); |
| } |
| |
| if (is_del) |
| { |
| if (!a) |
| { |
| vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index); |
| vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE; |
| return clib_error_create ("%U not found for interface %U", |
| lm->format_address_and_length, |
| addr_fib, address_length, |
| format_vnet_sw_interface_name, vnm, si); |
| } |
| |
| if (a->prev_this_sw_interface != ~0) |
| { |
| prev = |
| pool_elt_at_index (lm->if_address_pool, |
| a->prev_this_sw_interface); |
| prev->next_this_sw_interface = a->next_this_sw_interface; |
| } |
| if (a->next_this_sw_interface != ~0) |
| { |
| next = |
| pool_elt_at_index (lm->if_address_pool, |
| a->next_this_sw_interface); |
| next->prev_this_sw_interface = a->prev_this_sw_interface; |
| |
| if (a->prev_this_sw_interface == ~0) |
| lm->if_address_pool_index_by_sw_if_index[sw_if_index] = |
| a->next_this_sw_interface; |
| } |
| |
| if ((a->next_this_sw_interface == ~0) |
| && (a->prev_this_sw_interface == ~0)) |
| lm->if_address_pool_index_by_sw_if_index[sw_if_index] = ~0; |
| |
| mhash_unset (&lm->address_to_if_address_index, addr_fib, |
| /* old_value */ 0); |
| pool_put (lm->if_address_pool, a); |
| |
| if (result_if_address_index) |
| *result_if_address_index = ~0; |
| } |
| |
| else if (!a) |
| { |
| u32 pi; /* previous index */ |
| u32 ai; |
| u32 hi; /* head index */ |
| |
| pool_get (lm->if_address_pool, a); |
| memset (a, ~0, sizeof (a[0])); |
| ai = a - lm->if_address_pool; |
| |
| hi = pi = lm->if_address_pool_index_by_sw_if_index[sw_if_index]; |
| prev = 0; |
| while (pi != (u32) ~ 0) |
| { |
| prev = pool_elt_at_index (lm->if_address_pool, pi); |
| pi = prev->next_this_sw_interface; |
| } |
| pi = prev ? prev - lm->if_address_pool : (u32) ~ 0; |
| |
| a->address_key = mhash_set (&lm->address_to_if_address_index, |
| addr_fib, ai, /* old_value */ 0); |
| a->address_length = address_length; |
| a->sw_if_index = sw_if_index; |
| a->flags = 0; |
| a->prev_this_sw_interface = pi; |
| a->next_this_sw_interface = ~0; |
| if (prev) |
| prev->next_this_sw_interface = ai; |
| |
| lm->if_address_pool_index_by_sw_if_index[sw_if_index] = |
| (hi != ~0) ? hi : ai; |
| if (result_if_address_index) |
| *result_if_address_index = ai; |
| } |
| else |
| { |
| if (sw_if_index != a->sw_if_index) |
| { |
| if (result_if_address_index) |
| *result_if_address_index = ~0; |
| vnm->api_errno = VNET_API_ERROR_DUPLICATE_IF_ADDRESS; |
| return clib_error_create |
| ("Prefix %U already found on interface %U", |
| lm->format_address_and_length, addr_fib, address_length, |
| format_vnet_sw_if_index_name, vnm, a->sw_if_index); |
| } |
| |
| if (result_if_address_index) |
| *result_if_address_index = a - lm->if_address_pool; |
| } |
| |
| return /* no error */ 0; |
| } |
| |
| 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; |
| 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,v) if (flow_hash_config & v) s = format (s, "%s ", #n); |
| foreach_flow_hash_bit; |
| #undef _ |
| |
| return s; |
| } |
| |
| u8 * |
| format_ip_lookup_next (u8 * s, va_list * args) |
| { |
| /* int promotion of ip_lookup_next_t */ |
| ip_lookup_next_t n = va_arg (*args, int); |
| char *t = 0; |
| |
| switch (n) |
| { |
| default: |
| s = format (s, "unknown %d", n); |
| return s; |
| |
| case IP_LOOKUP_NEXT_DROP: |
| t = "drop"; |
| break; |
| case IP_LOOKUP_NEXT_PUNT: |
| t = "punt"; |
| break; |
| case IP_LOOKUP_NEXT_ARP: |
| t = "arp"; |
| break; |
| case IP_LOOKUP_NEXT_MIDCHAIN: |
| t = "midchain"; |
| break; |
| case IP_LOOKUP_NEXT_GLEAN: |
| t = "glean"; |
| break; |
| case IP_LOOKUP_NEXT_MCAST: |
| t = "mcast"; |
| break; |
| case IP_LOOKUP_NEXT_REWRITE: |
| break; |
| } |
| |
| if (t) |
| vec_add (s, t, strlen (t)); |
| |
| return s; |
| } |
| |
| u8 * |
| format_ip_adjacency_packet_data (u8 * s, va_list * args) |
| { |
| u32 adj_index = va_arg (*args, u32); |
| u8 *packet_data = va_arg (*args, u8 *); |
| u32 n_packet_data_bytes = va_arg (*args, u32); |
| ip_adjacency_t *adj = adj_get (adj_index); |
| |
| switch (adj->lookup_next_index) |
| { |
| case IP_LOOKUP_NEXT_REWRITE: |
| case IP_LOOKUP_NEXT_MCAST: |
| s = |
| format (s, "%U", format_hex_bytes, packet_data, n_packet_data_bytes); |
| break; |
| |
| default: |
| break; |
| } |
| |
| 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}, |
| }; |
| |
| 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; |
| fib_route_path_t *rpaths = NULL, rpath; |
| dpo_id_t dpo = DPO_INVALID, *dpos = NULL; |
| u32 table_id, is_del, udp_encap_id; |
| fib_prefix_t *prefixs = NULL, pfx; |
| mpls_label_t out_label, via_label; |
| clib_error_t *error = NULL; |
| u32 weight, preference; |
| vnet_main_t *vnm; |
| u32 fib_index; |
| f64 count; |
| int i; |
| |
| vnm = vnet_get_main (); |
| is_del = 0; |
| table_id = 0; |
| count = 1; |
| memset (&pfx, 0, sizeof (pfx)); |
| out_label = via_label = MPLS_LABEL_INVALID; |
| |
| /* 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) |
| { |
| memset (&rpath, 0, sizeof (rpath)); |
| |
| if (unformat (line_input, "table %d", &table_id)) |
| ; |
| else if (unformat (line_input, "resolve-via-host")) |
| { |
| if (vec_len (rpaths) == 0) |
| { |
| error = clib_error_return (0, "Paths then flags"); |
| goto done; |
| } |
| rpaths[vec_len (rpaths) - 1].frp_flags |= |
| FIB_ROUTE_PATH_RESOLVE_VIA_HOST; |
| } |
| else if (unformat (line_input, "resolve-via-attached")) |
| { |
| if (vec_len (rpaths) == 0) |
| { |
| error = clib_error_return (0, "Paths then flags"); |
| goto done; |
| } |
| rpaths[vec_len (rpaths) - 1].frp_flags |= |
| FIB_ROUTE_PATH_RESOLVE_VIA_ATTACHED; |
| } |
| else if (unformat (line_input, "out-labels")) |
| { |
| if (vec_len (rpaths) == 0) |
| { |
| error = clib_error_return (0, "Paths then labels"); |
| goto done; |
| } |
| else |
| { |
| while (unformat (line_input, "%U", |
| unformat_mpls_unicast_label, &out_label)) |
| { |
| vec_add1 (rpaths[vec_len (rpaths) - 1].frp_label_stack, |
| out_label); |
| } |
| } |
| } |
| else if (unformat (line_input, "via-label %U", |
| unformat_mpls_unicast_label, &rpath.frp_local_label)) |
| { |
| rpath.frp_weight = 1; |
| rpath.frp_eos = MPLS_NON_EOS; |
| rpath.frp_proto = DPO_PROTO_MPLS; |
| rpath.frp_sw_if_index = ~0; |
| vec_add1 (rpaths, rpath); |
| } |
| 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)) |
| { |
| 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)) |
| { |
| pfx.fp_proto = FIB_PROTOCOL_IP6; |
| vec_add1 (prefixs, pfx); |
| } |
| else if (unformat (line_input, "via %U %U", |
| unformat_ip4_address, |
| &rpath.frp_addr.ip4, |
| unformat_vnet_sw_interface, vnm, |
| &rpath.frp_sw_if_index)) |
| { |
| rpath.frp_weight = 1; |
| rpath.frp_proto = DPO_PROTO_IP4; |
| vec_add1 (rpaths, rpath); |
| } |
| |
| else if (unformat (line_input, "via %U %U", |
| unformat_ip6_address, |
| &rpath.frp_addr.ip6, |
| unformat_vnet_sw_interface, vnm, |
| &rpath.frp_sw_if_index)) |
| { |
| rpath.frp_weight = 1; |
| rpath.frp_proto = DPO_PROTO_IP6; |
| vec_add1 (rpaths, rpath); |
| } |
| else if (unformat (line_input, "weight %u", &weight)) |
| { |
| ASSERT (vec_len (rpaths)); |
| rpaths[vec_len (rpaths) - 1].frp_weight = weight; |
| } |
| else if (unformat (line_input, "preference %u", &preference)) |
| { |
| ASSERT (vec_len (rpaths)); |
| rpaths[vec_len (rpaths) - 1].frp_preference = preference; |
| } |
| else if (unformat (line_input, "via %U next-hop-table %d", |
| unformat_ip4_address, |
| &rpath.frp_addr.ip4, &rpath.frp_fib_index)) |
| { |
| rpath.frp_weight = 1; |
| rpath.frp_sw_if_index = ~0; |
| rpath.frp_proto = DPO_PROTO_IP4; |
| vec_add1 (rpaths, rpath); |
| } |
| else if (unformat (line_input, "via %U next-hop-table %d", |
| unformat_ip6_address, |
| &rpath.frp_addr.ip6, &rpath.frp_fib_index)) |
| { |
| rpath.frp_weight = 1; |
| rpath.frp_sw_if_index = ~0; |
| rpath.frp_proto = DPO_PROTO_IP6; |
| vec_add1 (rpaths, rpath); |
| } |
| else if (unformat (line_input, "via %U", |
| unformat_ip4_address, &rpath.frp_addr.ip4)) |
| { |
| /* |
| * the recursive next-hops are by default in the same table |
| * as the prefix |
| */ |
| rpath.frp_fib_index = table_id; |
| rpath.frp_weight = 1; |
| rpath.frp_sw_if_index = ~0; |
| rpath.frp_proto = DPO_PROTO_IP4; |
| vec_add1 (rpaths, rpath); |
| } |
| else if (unformat (line_input, "via %U", |
| unformat_ip6_address, &rpath.frp_addr.ip6)) |
| { |
| rpath.frp_fib_index = table_id; |
| rpath.frp_weight = 1; |
| rpath.frp_sw_if_index = ~0; |
| rpath.frp_proto = DPO_PROTO_IP6; |
| vec_add1 (rpaths, rpath); |
| } |
| else if (unformat (line_input, "via udp-encap %d", &udp_encap_id)) |
| { |
| rpath.frp_udp_encap_id = udp_encap_id; |
| rpath.frp_flags |= FIB_ROUTE_PATH_UDP_ENCAP; |
| rpath.frp_proto = fib_proto_to_dpo (pfx.fp_proto); |
| vec_add1 (rpaths, rpath); |
| } |
| else if (unformat (line_input, |
| "lookup in table %d", &rpath.frp_fib_index)) |
| { |
| rpath.frp_proto = fib_proto_to_dpo (pfx.fp_proto); |
| rpath.frp_sw_if_index = ~0; |
| vec_add1 (rpaths, rpath); |
| } |
| else if (vec_len (prefixs) > 0 && |
| unformat (line_input, "via %U", |
| unformat_vnet_sw_interface, vnm, |
| &rpath.frp_sw_if_index)) |
| { |
| rpath.frp_weight = 1; |
| rpath.frp_proto = fib_proto_to_dpo (prefixs[0].fp_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, j, n, incr; |
| ip46_address_t dst = prefixs[i].fp_addr; |
| f64 t[2]; |
| n = count; |
| t[0] = vlib_time_now (vm); |
| incr = 1 << ((FIB_PROTOCOL_IP4 == prefixs[0].fp_proto ? 32 : 128) - |
| prefixs[i].fp_len); |
| |
| for (k = 0; k < n; k++) |
| { |
| for (j = 0; j < vec_len (rpaths); j++) |
| { |
| u32 fi; |
| /* |
| * the CLI parsing stored table Ids, swap to FIB indicies |
| */ |
| fi = fib_table_find (prefixs[i].fp_proto, |
| rpaths[i].frp_fib_index); |
| |
| if (~0 == fi) |
| { |
| error = |
| clib_error_return (0, "Via table %d does not exist", |
| rpaths[i].frp_fib_index); |
| goto done; |
| } |
| rpaths[i].frp_fib_index = fi; |
| |
| fib_prefix_t rpfx = { |
| .fp_len = prefixs[i].fp_len, |
| .fp_proto = prefixs[i].fp_proto, |
| .fp_addr = dst, |
| }; |
| |
| if (is_del) |
| fib_table_entry_path_remove2 (fib_index, |
| &rpfx, |
| FIB_SOURCE_CLI, &rpaths[j]); |
| else |
| fib_table_entry_path_add2 (fib_index, |
| &rpfx, |
| FIB_SOURCE_CLI, |
| FIB_ENTRY_FLAG_NONE, |
| &rpaths[j]); |
| } |
| |
| if (FIB_PROTOCOL_IP4 == prefixs[0].fp_proto) |
| { |
| dst.ip4.as_u32 = |
| clib_host_to_net_u32 (incr + |
| clib_net_to_host_u32 (dst. |
| ip4.as_u32)); |
| } |
| else |
| { |
| int bucket = (incr < 64 ? 0 : 1); |
| dst.ip6.as_u64[bucket] = |
| clib_host_to_net_u64 (incr + |
| clib_net_to_host_u64 (dst.ip6.as_u64 |
| [bucket])); |
| |
| } |
| } |
| 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, "No table id"); |
| goto done; |
| } |
| else if (0 == table_id) |
| { |
| error = clib_error_return (0, "Can't change the default table"); |
| goto done; |
| } |
| else |
| { |
| if (is_add) |
| { |
| ip_table_create (fproto, table_id, 0, name); |
| } |
| else |
| { |
| ip_table_delete (fproto, table_id, 0); |
| } |
| } |
| |
| done: |
| 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)); |
| } |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (vlib_cli_ip_command, static) = { |
| .path = "ip", |
| .short_help = "Internet protocol (IP) commands", |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (vlib_cli_ip6_command, static) = { |
| .path = "ip6", |
| .short_help = "Internet protocol version 6 (IPv6) commands", |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (vlib_cli_show_ip_command, static) = { |
| .path = "show ip", |
| .short_help = "Internet protocol (IP) show commands", |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (vlib_cli_show_ip6_command, static) = { |
| .path = "show ip6", |
| .short_help = "Internet protocol version 6 (IPv6) show commands", |
| }; |
| /* *INDENT-ON* */ |
| |
| /*? |
| * This command is used to add or delete IPv4 or IPv6 routes. All |
| * IP Addresses ('<em><dst-ip-addr>/<width></em>', |
| * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>') |
| * 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 |
| * '<em>show ip fib</em>' and '<em>show ip6 fib</em>'. |
| * |
| * @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} |
| ?*/ |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (ip_route_command, static) = { |
| .path = "ip route", |
| .short_help = "ip route [add|del] [count <n>] <dst-ip-addr>/<width> [table <table-id>] [via <next-hop-ip-addr> [<interface>] [weight <weight>]] | [via arp <interface> <adj-hop-ip-addr>] | [via drop|punt|local<id>|arp|classify <classify-idx>] [lookup in table <out-table-id>]", |
| .function = vnet_ip_route_cmd, |
| .is_mp_safe = 1, |
| }; |
| |
| /* *INDENT-ON* */ |
| /*? |
| * 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 |
| * |
| ?*/ |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (ip4_table_command, static) = { |
| .path = "ip table", |
| .short_help = "ip table [add|del] <table-id>", |
| .function = vnet_ip4_table_cmd, |
| .is_mp_safe = 1, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-ON* */ |
| /*? |
| * 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 |
| * |
| ?*/ |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (ip6_table_command, static) = { |
| .path = "ip6 table", |
| .short_help = "ip6 table [add|del] <table-id>", |
| .function = vnet_ip6_table_cmd, |
| .is_mp_safe = 1, |
| }; |
| |
| 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, 0); |
| |
| 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). If the FIB table does not exist, this command creates it. To |
| * display the current IPv4 FIB table, use the command '<em>show ip fib</em>'. |
| * 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} |
| ?*/ |
| /* *INDENT-OFF* */ |
| 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 <interface> <table-id>", |
| }; |
| /* *INDENT-ON* */ |
| |
| /*? |
| * Place the indicated interface into the supplied IPv6 FIB table (also known |
| * as a VRF). If the FIB table does not exist, this command creates it. To |
| * display the current IPv6 FIB table, use the command '<em>show ip6 fib</em>'. |
| * 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} |
| ?*/ |
| /* *INDENT-OFF* */ |
| 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 <interface> <table-id>" |
| }; |
| /* *INDENT-ON* */ |
| |
| 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; |
| clib_error_t *error = NULL; |
| fib_route_path_t rpath; |
| u32 table_id, is_del; |
| vnet_main_t *vnm; |
| mfib_prefix_t pfx; |
| u32 fib_index; |
| mfib_itf_flags_t iflags = 0; |
| mfib_entry_flags_t eflags = 0; |
| u32 gcount, scount, ss, gg, incr; |
| f64 timet[2]; |
| |
| gcount = scount = 1; |
| vnm = vnet_get_main (); |
| is_del = 0; |
| table_id = 0; |
| memset (&pfx, 0, sizeof (pfx)); |
| 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, "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)) |
| { |
| 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)) |
| { |
| 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)) |
| { |
| memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4)); |
| pfx.fp_proto = FIB_PROTOCOL_IP4; |
| } |
| else if (unformat (line_input, "%U/%d", |
| unformat_ip6_address, |
| &pfx.fp_grp_addr.ip6, &pfx.fp_len)) |
| { |
| memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6)); |
| pfx.fp_proto = FIB_PROTOCOL_IP6; |
| } |
| else if (unformat (line_input, "%U", |
| unformat_ip4_address, &pfx.fp_grp_addr.ip4)) |
| { |
| memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4)); |
| pfx.fp_proto = FIB_PROTOCOL_IP4; |
| pfx.fp_len = 32; |
| } |
| else if (unformat (line_input, "%U", |
| unformat_ip6_address, &pfx.fp_grp_addr.ip6)) |
| { |
| memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6)); |
| pfx.fp_proto = FIB_PROTOCOL_IP6; |
| pfx.fp_len = 128; |
| } |
| else if (unformat (line_input, "via %U", |
| unformat_vnet_sw_interface, vnm, |
| &rpath.frp_sw_if_index)) |
| { |
| rpath.frp_weight = 1; |
| } |
| else if (unformat (line_input, "via local")) |
| { |
| rpath.frp_sw_if_index = ~0; |
| rpath.frp_weight = 1; |
| rpath.frp_flags |= FIB_ROUTE_PATH_LOCAL; |
| } |
| else if (unformat (line_input, "%U", unformat_mfib_itf_flags, &iflags)) |
| ; |
| 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 == rpath.frp_weight) |
| { |
| /* no path provided => route delete */ |
| mfib_table_entry_delete (fib_index, &pfx, MFIB_SOURCE_CLI); |
| } |
| else if (eflags) |
| { |
| mfib_table_entry_update (fib_index, &pfx, MFIB_SOURCE_CLI, |
| MFIB_RPF_ID_NONE, eflags); |
| } |
| else |
| { |
| if (is_del) |
| mfib_table_entry_path_remove (fib_index, |
| &pfx, MFIB_SOURCE_CLI, &rpath); |
| else |
| mfib_table_entry_path_update (fib_index, |
| &pfx, MFIB_SOURCE_CLI, &rpath, |
| iflags); |
| } |
| |
| 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: |
| unformat_free (line_input); |
| |
| return error; |
| } |
| |
| /*? |
| * This command is used to add or delete IPv4 or IPv6 multicastroutes. All |
| * IP Addresses ('<em><dst-ip-addr>/<width></em>', |
| * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>') |
| * 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 |
| * '<em>show ip mfib</em>' and '<em>show ip6 mfib</em>'. |
| * The full set of support flags for interfaces and route is shown via; |
| * '<em>show mfib route flags</em>' and '<em>show mfib itf flags</em>' |
| * 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} |
| |
| ?*/ |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (ip_mroute_command, static) = |
| { |
| .path = "ip mroute", |
| .short_help = "ip mroute [add|del] <dst-ip-addr>/<width> [table <table-id>] [via <next-hop-ip-addr> [<interface>],", |
| .function = vnet_ip_mroute_cmd, |
| .is_mp_safe = 1, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* |
| * The next two routines address a longstanding script hemorrhoid. |
| * Probing a v4 or v6 neighbor needs to appear to be synchronous, |
| * or dependent route-adds will simply fail. |
| */ |
| static clib_error_t * |
| ip6_probe_neighbor_wait (vlib_main_t * vm, ip6_address_t * a, u32 sw_if_index, |
| int retry_count) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| clib_error_t *e; |
| int i; |
| int resolved = 0; |
| uword event_type; |
| uword *event_data = 0; |
| |
| ASSERT (vlib_in_process_context (vm)); |
| |
| if (retry_count > 0) |
| vnet_register_ip6_neighbor_resolution_event |
| (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index, |
| 1 /* event */ , 0 /* data */ ); |
| |
| for (i = 0; i < retry_count; i++) |
| { |
| /* The interface may be down, etc. */ |
| e = ip6_probe_neighbor (vm, a, sw_if_index); |
| |
| if (e) |
| return e; |
| |
| vlib_process_wait_for_event_or_clock (vm, 1.0); |
| event_type = vlib_process_get_events (vm, &event_data); |
| switch (event_type) |
| { |
| case 1: /* resolved... */ |
| vlib_cli_output (vm, "Resolved %U", format_ip6_address, a); |
| resolved = 1; |
| goto done; |
| |
| case ~0: /* timeout */ |
| break; |
| |
| default: |
| clib_warning ("unknown event_type %d", event_type); |
| } |
| vec_reset_length (event_data); |
| } |
| |
| done: |
| |
| if (!resolved) |
| return clib_error_return (0, "Resolution failed for %U", |
| format_ip6_address, a); |
| return 0; |
| } |
| |
| static clib_error_t * |
| ip4_probe_neighbor_wait (vlib_main_t * vm, ip4_address_t * a, u32 sw_if_index, |
| int retry_count) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| clib_error_t *e; |
| int i; |
| int resolved = 0; |
| uword event_type; |
| uword *event_data = 0; |
| |
| ASSERT (vlib_in_process_context (vm)); |
| |
| if (retry_count > 0) |
| vnet_register_ip4_arp_resolution_event |
| (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index, |
| 1 /* event */ , 0 /* data */ ); |
| |
| for (i = 0; i < retry_count; i++) |
| { |
| /* The interface may be down, etc. */ |
| e = ip4_probe_neighbor (vm, a, sw_if_index); |
| |
| if (e) |
| return e; |
| |
| vlib_process_wait_for_event_or_clock (vm, 1.0); |
| event_type = vlib_process_get_events (vm, &event_data); |
| switch (event_type) |
| { |
| case 1: /* resolved... */ |
| vlib_cli_output (vm, "Resolved %U", format_ip4_address, a); |
| resolved = 1; |
| goto done; |
| |
| case ~0: /* timeout */ |
| break; |
| |
| default: |
| clib_warning ("unknown event_type %d", event_type); |
| } |
| vec_reset_length (event_data); |
| } |
| |
| done: |
| |
| vec_reset_length (event_data); |
| |
| if (!resolved) |
| return clib_error_return (0, "Resolution failed for %U", |
| format_ip4_address, a); |
| return 0; |
| } |
| |
| static clib_error_t * |
| probe_neighbor_address (vlib_main_t * vm, |
| unformat_input_t * input, vlib_cli_command_t * cmd) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| unformat_input_t _line_input, *line_input = &_line_input; |
| ip4_address_t a4; |
| ip6_address_t a6; |
| clib_error_t *error = 0; |
| u32 sw_if_index = ~0; |
| int retry_count = 3; |
| int is_ip4 = 1; |
| int address_set = 0; |
| |
| /* 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_user (line_input, unformat_vnet_sw_interface, vnm, |
| &sw_if_index)) |
| ; |
| else if (unformat (line_input, "retry %d", &retry_count)) |
| ; |
| |
| else if (unformat (line_input, "%U", unformat_ip4_address, &a4)) |
| address_set++; |
| else if (unformat (line_input, "%U", unformat_ip6_address, &a6)) |
| { |
| address_set++; |
| is_ip4 = 0; |
| } |
| else |
| { |
| error = clib_error_return (0, "unknown input '%U'", |
| format_unformat_error, line_input); |
| goto done; |
| } |
| } |
| |
| if (sw_if_index == ~0) |
| { |
| error = clib_error_return (0, "Interface required, not set."); |
| goto done; |
| } |
| if (address_set == 0) |
| { |
| error = clib_error_return (0, "ip address required, not set."); |
| goto done; |
| } |
| if (address_set > 1) |
| { |
| error = clib_error_return (0, "Multiple ip addresses not supported."); |
| goto done; |
| } |
| |
| if (is_ip4) |
| error = ip4_probe_neighbor_wait (vm, &a4, sw_if_index, retry_count); |
| else |
| error = ip6_probe_neighbor_wait (vm, &a6, sw_if_index, retry_count); |
| |
| done: |
| unformat_free (line_input); |
| |
| return error; |
| } |
| |
| /*? |
| * The '<em>ip probe-neighbor</em>' command ARPs for IPv4 addresses or |
| * attempts IPv6 neighbor discovery depending on the supplied IP address |
| * format. |
| * |
| * @note This command will not immediately affect the indicated FIB; it |
| * is not suitable for use in establishing a FIB entry prior to adding |
| * recursive FIB entries. As in: don't use it in a script to probe a |
| * gateway prior to adding a default route. It won't work. Instead, |
| * configure a static ARP cache entry [see '<em>set ip arp</em>'], or |
| * a static IPv6 neighbor [see '<em>set ip6 neighbor</em>']. |
| * |
| * @cliexpar |
| * Example of probe for an IPv4 address: |
| * @cliexcmd{ip probe-neighbor GigabitEthernet2/0/0 172.16.1.2} |
| ?*/ |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (ip_probe_neighbor_command, static) = { |
| .path = "ip probe-neighbor", |
| .function = probe_neighbor_address, |
| .short_help = "ip probe-neighbor <interface> <ip4-addr> | <ip6-addr> [retry nn]", |
| .is_mp_safe = 1, |
| }; |
| /* *INDENT-ON* */ |
| |
| clib_error_t * |
| vnet_ip_container_proxy_add_del (vnet_ip_container_proxy_args_t * args) |
| { |
| u32 fib_index; |
| |
| if (!vnet_sw_interface_is_api_valid (vnet_get_main (), args->sw_if_index)) |
| return clib_error_return_code (0, VNET_API_ERROR_INVALID_INTERFACE, 0, |
| "invalid sw_if_index"); |
| |
| fib_index = fib_table_get_table_id_for_sw_if_index (args->prefix.fp_proto, |
| args->sw_if_index); |
| if (args->is_add) |
| { |
| dpo_id_t proxy_dpo = DPO_INVALID; |
| l3_proxy_dpo_add_or_lock (fib_proto_to_dpo (args->prefix.fp_proto), |
| args->sw_if_index, &proxy_dpo); |
| fib_table_entry_special_dpo_add (fib_index, |
| &args->prefix, |
| FIB_SOURCE_PROXY, |
| FIB_ENTRY_FLAG_EXCLUSIVE, &proxy_dpo); |
| dpo_reset (&proxy_dpo); |
| } |
| else |
| { |
| fib_table_entry_special_remove (fib_index, &args->prefix, |
| FIB_SOURCE_PROXY); |
| } |
| return 0; |
| } |
| |
| u8 |
| ip_container_proxy_is_set (fib_prefix_t * pfx, u32 sw_if_index) |
| { |
| u32 fib_index; |
| fib_node_index_t fei; |
| const dpo_id_t *dpo; |
| l3_proxy_dpo_t *l3p; |
| load_balance_t *lb0; |
| |
| fib_index = fib_table_get_table_id_for_sw_if_index (pfx->fp_proto, |
| sw_if_index); |
| if (fib_index == ~0) |
| return 0; |
| |
| fei = fib_table_lookup_exact_match (fib_index, pfx); |
| if (fei == FIB_NODE_INDEX_INVALID) |
| return 0; |
| |
| dpo = fib_entry_contribute_ip_forwarding (fei); |
| lb0 = load_balance_get (dpo->dpoi_index); |
| dpo = load_balance_get_bucket_i (lb0, 0); |
| if (dpo->dpoi_type != DPO_L3_PROXY) |
| return 0; |
| |
| l3p = l3_proxy_dpo_get (dpo->dpoi_index); |
| return (l3p->l3p_sw_if_index == sw_if_index); |
| } |
| |
| clib_error_t * |
| ip_container_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_prefix_t pfx; |
| |
| u32 is_del; |
| vnet_main_t *vnm; |
| u32 sw_if_index; |
| |
| vnm = vnet_get_main (); |
| is_del = 0; |
| 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, "%U", unformat_ip4_address, &pfx.fp_addr.ip4)) |
| { |
| pfx.fp_proto = FIB_PROTOCOL_IP4; |
| pfx.fp_len = 32; |
| } |
| else if (unformat (line_input, "%U", |
| unformat_ip6_address, &pfx.fp_addr.ip6)) |
| { |
| pfx.fp_proto = FIB_PROTOCOL_IP6; |
| pfx.fp_len = 128; |
| } |
| else if (unformat (line_input, "%U", |
| unformat_vnet_sw_interface, vnm, &sw_if_index)) |
| ; |
| else if (unformat (line_input, "del")) |
| is_del = 1; |
| else |
| return (clib_error_return (0, "unknown input '%U'", |
| format_unformat_error, line_input)); |
| } |
| |
| if (~0 == sw_if_index) |
| { |
| return (clib_error_return (0, "no interface")); |
| } |
| |
| vnet_ip_container_proxy_args_t args = { |
| .prefix = pfx, |
| .sw_if_index = sw_if_index, |
| .is_add = !is_del, |
| }; |
| vnet_ip_container_proxy_add_del (&args); |
| unformat_free (line_input); |
| return (NULL); |
| } |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (ip_container_command_node, static) = { |
| .path = "ip container", |
| .function = ip_container_cmd, |
| .short_help = "ip container <address> <interface>", |
| .is_mp_safe = 1, |
| }; |
| /* *INDENT-ON* */ |
| |
| clib_error_t * |
| show_ip_container_cmd_fn (vlib_main_t * vm, unformat_input_t * main_input, |
| vlib_cli_command_t * cmd) |
| { |
| unformat_input_t _line_input, *line_input = &_line_input; |
| vnet_main_t *vnm = vnet_get_main (); |
| fib_prefix_t pfx; |
| u32 sw_if_index = ~0; |
| u8 has_proxy; |
| |
| 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, "%U", unformat_ip4_address, &pfx.fp_addr.ip4)) |
| { |
| pfx.fp_proto = FIB_PROTOCOL_IP4; |
| pfx.fp_len = 32; |
| } |
| else if (unformat (line_input, "%U", |
| unformat_ip6_address, &pfx.fp_addr.ip6)) |
| { |
| pfx.fp_proto = FIB_PROTOCOL_IP6; |
| pfx.fp_len = 128; |
| } |
| else if (unformat (line_input, "%U", |
| unformat_vnet_sw_interface, vnm, &sw_if_index)) |
| ; |
| else |
| return (clib_error_return (0, "unknown input '%U'", |
| format_unformat_error, line_input)); |
| } |
| |
| if (~0 == sw_if_index) |
| { |
| vlib_cli_output (vm, "no interface"); |
| return (clib_error_return (0, "no interface")); |
| } |
| |
| has_proxy = ip_container_proxy_is_set (&pfx, sw_if_index); |
| vlib_cli_output (vm, "ip container proxy is: %s", has_proxy ? "on" : "off"); |
| |
| unformat_free (line_input); |
| return 0; |
| } |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (show_ip_container_command, static) = { |
| .path = "show ip container", |
| .function = show_ip_container_cmd_fn, |
| .short_help = "show ip container <address> <interface>", |
| .is_mp_safe = 1, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |