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-rw-r--r--vnet/vnet/fib/ip4_fib.c664
1 files changed, 0 insertions, 664 deletions
diff --git a/vnet/vnet/fib/ip4_fib.c b/vnet/vnet/fib/ip4_fib.c
deleted file mode 100644
index f6ebce00837..00000000000
--- a/vnet/vnet/fib/ip4_fib.c
+++ /dev/null
@@ -1,664 +0,0 @@
-/*
- * Copyright (c) 2016 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/fib/fib_table.h>
-#include <vnet/fib/fib_entry.h>
-#include <vnet/fib/ip4_fib.h>
-
-/*
- * A table of pefixes to be added to tables and the sources for them
- */
-typedef struct ip4_fib_table_special_prefix_t_ {
- fib_prefix_t ift_prefix;
- fib_source_t ift_source;
- fib_entry_flag_t ift_flag;
-} ip4_fib_table_special_prefix_t;
-
-static const ip4_fib_table_special_prefix_t ip4_specials[] = {
- {
- /* 0.0.0.0/0*/
- .ift_prefix = {
- .fp_addr = {
- .ip4.data_u32 = 0,
- },
- .fp_len = 0,
- .fp_proto = FIB_PROTOCOL_IP4,
- },
- .ift_source = FIB_SOURCE_DEFAULT_ROUTE,
- .ift_flag = FIB_ENTRY_FLAG_DROP,
- },
- {
- /* 0.0.0.0/32*/
- .ift_prefix = {
- .fp_addr = {
- .ip4.data_u32 = 0,
- },
- .fp_len = 32,
- .fp_proto = FIB_PROTOCOL_IP4,
- },
- .ift_source = FIB_SOURCE_DEFAULT_ROUTE,
- .ift_flag = FIB_ENTRY_FLAG_DROP,
- },
- {
- /*
- * 240.0.0.0/4
- * drop class E
- */
- .ift_prefix = {
- .fp_addr = {
- .ip4.data_u32 = 0xf0000000,
- },
- .fp_len = 4,
- .fp_proto = FIB_PROTOCOL_IP4,
- },
- .ift_source = FIB_SOURCE_SPECIAL,
- .ift_flag = FIB_ENTRY_FLAG_DROP,
-
- },
- {
- /*
- * 224.0.0.0/4
- * drop all mcast
- */
- .ift_prefix = {
- .fp_addr = {
- .ip4.data_u32 = 0xe0000000,
- },
- .fp_len = 4,
- .fp_proto = FIB_PROTOCOL_IP4,
- },
- .ift_source = FIB_SOURCE_SPECIAL,
- .ift_flag = FIB_ENTRY_FLAG_DROP,
- },
- {
- /*
- * 255.255.255.255/32
- * drop, but we'll allow it to be usurped by the likes of DHCP
- */
- .ift_prefix = {
- .fp_addr = {
- .ip4.data_u32 = 0xffffffff,
- },
- .fp_len = 32,
- .fp_proto = FIB_PROTOCOL_IP4,
- },
- .ift_source = FIB_SOURCE_DEFAULT_ROUTE,
- .ift_flag = FIB_ENTRY_FLAG_DROP,
- }
-};
-
-
-static u32
-ip4_create_fib_with_table_id (u32 table_id)
-{
- fib_table_t *fib_table;
-
- pool_get_aligned(ip4_main.fibs, fib_table, CLIB_CACHE_LINE_BYTES);
- memset(fib_table, 0, sizeof(*fib_table));
-
- fib_table->ft_proto = FIB_PROTOCOL_IP4;
- fib_table->ft_index =
- fib_table->v4.index =
- (fib_table - ip4_main.fibs);
-
- hash_set (ip4_main.fib_index_by_table_id, table_id, fib_table->ft_index);
-
- fib_table->ft_table_id =
- fib_table->v4.table_id =
- table_id;
- fib_table->ft_flow_hash_config =
- fib_table->v4.flow_hash_config =
- IP_FLOW_HASH_DEFAULT;
- fib_table->v4.fwd_classify_table_index = ~0;
- fib_table->v4.rev_classify_table_index = ~0;
-
- fib_table_lock(fib_table->ft_index, FIB_PROTOCOL_IP4);
-
- ip4_mtrie_init(&fib_table->v4.mtrie);
-
- /*
- * add the special entries into the new FIB
- */
- int ii;
-
- for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++)
- {
- fib_prefix_t prefix = ip4_specials[ii].ift_prefix;
-
- prefix.fp_addr.ip4.data_u32 =
- clib_host_to_net_u32(prefix.fp_addr.ip4.data_u32);
-
- fib_table_entry_special_add(fib_table->ft_index,
- &prefix,
- ip4_specials[ii].ift_source,
- ip4_specials[ii].ift_flag,
- ADJ_INDEX_INVALID);
- }
-
- return (fib_table->ft_index);
-}
-
-void
-ip4_fib_table_destroy (ip4_fib_t *fib)
-{
- fib_table_t *fib_table = (fib_table_t*)fib;
- int ii;
-
- /*
- * remove all the specials we added when the table was created.
- */
- for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++)
- {
- fib_prefix_t prefix = ip4_specials[ii].ift_prefix;
-
- prefix.fp_addr.ip4.data_u32 =
- clib_host_to_net_u32(prefix.fp_addr.ip4.data_u32);
-
- fib_table_entry_special_remove(fib_table->ft_index,
- &prefix,
- ip4_specials[ii].ift_source);
- }
-
- /*
- * validate no more routes.
- */
- ASSERT(0 == fib_table->ft_total_route_counts);
- FOR_EACH_FIB_SOURCE(ii)
- {
- ASSERT(0 == fib_table->ft_src_route_counts[ii]);
- }
-
- if (~0 != fib_table->ft_table_id)
- {
- hash_unset (ip4_main.fib_index_by_table_id, fib_table->ft_table_id);
- }
- pool_put(ip4_main.fibs, fib_table);
-}
-
-
-u32
-ip4_fib_table_find_or_create_and_lock (u32 table_id)
-{
- u32 index;
-
- index = ip4_fib_index_from_table_id(table_id);
- if (~0 == index)
- return ip4_create_fib_with_table_id(table_id);
-
- fib_table_lock(index, FIB_PROTOCOL_IP4);
-
- return (index);
-}
-
-u32
-ip4_fib_table_create_and_lock (void)
-{
- return (ip4_create_fib_with_table_id(~0));
-}
-
-u32
-ip4_fib_table_get_index_for_sw_if_index (u32 sw_if_index)
-{
- if (sw_if_index >= vec_len(ip4_main.fib_index_by_sw_if_index))
- {
- /*
- * This is the case for interfaces that are not yet mapped to
- * a IP table
- */
- return (~0);
- }
- return (ip4_main.fib_index_by_sw_if_index[sw_if_index]);
-}
-
-flow_hash_config_t
-ip4_fib_table_get_flow_hash_config (u32 fib_index)
-{
- return (ip4_fib_get(fib_index)->flow_hash_config);
-}
-
-/*
- * ip4_fib_table_lookup_exact_match
- *
- * Exact match prefix lookup
- */
-fib_node_index_t
-ip4_fib_table_lookup_exact_match (const ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len)
-{
- uword * hash, * result;
- u32 key;
-
- hash = fib->fib_entry_by_dst_address[len];
- key = (addr->data_u32 & ip4_main.fib_masks[len]);
-
- result = hash_get(hash, key);
-
- if (NULL != result) {
- return (result[0]);
- }
- return (FIB_NODE_INDEX_INVALID);
-}
-
-/*
- * ip4_fib_table_lookup_adj
- *
- * Longest prefix match
- */
-index_t
-ip4_fib_table_lookup_lb (ip4_fib_t *fib,
- const ip4_address_t *addr)
-{
- fib_node_index_t fei;
-
- fei = ip4_fib_table_lookup(fib, addr, 32);
-
- if (FIB_NODE_INDEX_INVALID != fei)
- {
- const dpo_id_t *dpo;
-
- dpo = fib_entry_contribute_ip_forwarding(fei);
-
- return (dpo->dpoi_index);
- }
- return (INDEX_INVALID);
-}
-
-/*
- * ip4_fib_table_lookup
- *
- * Longest prefix match
- */
-fib_node_index_t
-ip4_fib_table_lookup (const ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len)
-{
- uword * hash, * result;
- i32 mask_len;
- u32 key;
-
- for (mask_len = len; mask_len >= 0; mask_len--)
- {
- hash = fib->fib_entry_by_dst_address[mask_len];
- key = (addr->data_u32 & ip4_main.fib_masks[mask_len]);
-
- result = hash_get (hash, key);
-
- if (NULL != result) {
- return (result[0]);
- }
- }
- return (FIB_NODE_INDEX_INVALID);
-}
-
-void
-ip4_fib_table_entry_insert (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- fib_node_index_t fib_entry_index)
-{
- uword * hash, * result;
- u32 key;
-
- key = (addr->data_u32 & ip4_main.fib_masks[len]);
- hash = fib->fib_entry_by_dst_address[len];
- result = hash_get (hash, key);
-
- if (NULL == result) {
- /*
- * adding a new entry
- */
- if (NULL == hash) {
- hash = hash_create (32 /* elts */, sizeof (uword));
- hash_set_flags (hash, HASH_FLAG_NO_AUTO_SHRINK);
- }
- hash = hash_set(hash, key, fib_entry_index);
- fib->fib_entry_by_dst_address[len] = hash;
- }
- else
- {
- ASSERT(0);
- }
-}
-
-void
-ip4_fib_table_entry_remove (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len)
-{
- uword * hash, * result;
- u32 key;
-
- key = (addr->data_u32 & ip4_main.fib_masks[len]);
- hash = fib->fib_entry_by_dst_address[len];
- result = hash_get (hash, key);
-
- if (NULL == result)
- {
- /*
- * removing a non-existant entry. i'll allow it.
- */
- }
- else
- {
- hash_unset(hash, key);
- }
-
- fib->fib_entry_by_dst_address[len] = hash;
-}
-
-void
-ip4_fib_table_fwding_dpo_update (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- const dpo_id_t *dpo)
-{
- ip4_fib_mtrie_add_del_route(fib, *addr, len, dpo->dpoi_index, 0); // ADD
-}
-
-void
-ip4_fib_table_fwding_dpo_remove (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- const dpo_id_t *dpo)
-{
- ip4_fib_mtrie_add_del_route(fib, *addr, len, dpo->dpoi_index, 1); // DELETE
-}
-
-static void
-ip4_fib_table_show_all (ip4_fib_t *fib,
- vlib_main_t * vm)
-{
- fib_node_index_t *fib_entry_indicies;
- fib_node_index_t *fib_entry_index;
- int i;
-
- fib_entry_indicies = NULL;
-
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
- {
- uword * hash = fib->fib_entry_by_dst_address[i];
-
- if (NULL != hash)
- {
- hash_pair_t * p;
-
- hash_foreach_pair (p, hash,
- ({
- vec_add1(fib_entry_indicies, p->value[0]);
- }));
- }
- }
-
- vec_sort_with_function(fib_entry_indicies, fib_entry_cmp_for_sort);
-
- vec_foreach(fib_entry_index, fib_entry_indicies)
- {
- vlib_cli_output(vm, "%U",
- format_fib_entry,
- *fib_entry_index,
- FIB_ENTRY_FORMAT_BRIEF);
- }
-
- vec_free(fib_entry_indicies);
-}
-
-static void
-ip4_fib_table_show_one (ip4_fib_t *fib,
- vlib_main_t * vm,
- ip4_address_t *address,
- u32 mask_len)
-{
- vlib_cli_output(vm, "%U",
- format_fib_entry,
- ip4_fib_table_lookup(fib, address, mask_len),
- FIB_ENTRY_FORMAT_DETAIL);
-}
-
-static clib_error_t *
-ip4_show_fib (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- ip4_main_t * im4 = &ip4_main;
- fib_table_t * fib_table;
- int verbose, matching, mtrie;
- ip4_address_t matching_address;
- u32 matching_mask = 32;
- int i, table_id = -1, fib_index = ~0;
-
- verbose = 1;
- matching = 0;
- mtrie = 0;
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "brief") || unformat (input, "summary")
- || unformat (input, "sum"))
- verbose = 0;
-
- else if (unformat (input, "mtrie"))
- mtrie = 1;
-
- else if (unformat (input, "%U/%d",
- unformat_ip4_address, &matching_address, &matching_mask))
- matching = 1;
-
- else if (unformat (input, "%U", unformat_ip4_address, &matching_address))
- matching = 1;
-
- else if (unformat (input, "table %d", &table_id))
- ;
- else if (unformat (input, "index %d", &fib_index))
- ;
- else
- break;
- }
-
- pool_foreach (fib_table, im4->fibs,
- ({
- ip4_fib_t *fib = &fib_table->v4;
-
- if (table_id >= 0 && table_id != (int)fib->table_id)
- continue;
- if (fib_index != ~0 && fib_index != (int)fib->index)
- continue;
-
- vlib_cli_output (vm, "%U, fib_index %d, flow hash: %U",
- format_fib_table_name, fib->index, FIB_PROTOCOL_IP4,
- fib->index,
- format_ip_flow_hash_config, fib->flow_hash_config);
-
- /* Show summary? */
- if (! verbose)
- {
- vlib_cli_output (vm, "%=20s%=16s", "Prefix length", "Count");
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
- {
- uword * hash = fib->fib_entry_by_dst_address[i];
- uword n_elts = hash_elts (hash);
- if (n_elts > 0)
- vlib_cli_output (vm, "%20d%16d", i, n_elts);
- }
- continue;
- }
-
- if (!matching)
- {
- ip4_fib_table_show_all(fib, vm);
- }
- else
- {
- ip4_fib_table_show_one(fib, vm, &matching_address, matching_mask);
- }
-
- if (mtrie)
- vlib_cli_output (vm, "%U", format_ip4_fib_mtrie, &fib->mtrie);
- }));
-
- return 0;
-}
-
-/*?
- * This command displays the IPv4 FIB Tables (VRF Tables) and the route
- * entries for each table.
- *
- * @note This command will run for a long time when the FIB tables are
- * comprised of millions of entries. For those senarios, consider displaying
- * a single table or summary mode.
- *
- * @cliexpar
- * Example of how to display all the IPv4 FIB tables:
- * @cliexstart{show ip fib}
- * ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto
- * 0.0.0.0/0
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:0 buckets:1 uRPF:0 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 0.0.0.0/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:1 buckets:1 uRPF:1 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 6.0.1.2/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:30 buckets:1 uRPF:29 to:[0:0]]
- * [0] [@3]: arp-ipv4: via 6.0.0.1 af_packet0
- * 7.0.0.1/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:31 buckets:4 uRPF:30 to:[0:0]]
- * [0] [@3]: arp-ipv4: via 6.0.0.2 af_packet0
- * [1] [@3]: arp-ipv4: via 6.0.0.2 af_packet0
- * [2] [@3]: arp-ipv4: via 6.0.0.2 af_packet0
- * [3] [@3]: arp-ipv4: via 6.0.0.1 af_packet0
- * 224.0.0.0/8
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:3 buckets:1 uRPF:3 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 240.0.0.0/8
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:2 buckets:1 uRPF:2 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 255.255.255.255/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:4 buckets:1 uRPF:4 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * ipv4-VRF:7, fib_index 1, flow hash: src dst sport dport proto
- * 0.0.0.0/0
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:12 buckets:1 uRPF:11 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 0.0.0.0/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:13 buckets:1 uRPF:12 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 172.16.1.0/24
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:17 buckets:1 uRPF:16 to:[0:0]]
- * [0] [@4]: ipv4-glean: af_packet0
- * 172.16.1.1/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:18 buckets:1 uRPF:17 to:[1:84]]
- * [0] [@2]: dpo-receive: 172.16.1.1 on af_packet0
- * 172.16.1.2/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:21 buckets:1 uRPF:20 to:[0:0]]
- * [0] [@5]: ipv4 via 172.16.1.2 af_packet0: IP4: 02:fe:9e:70:7a:2b -> 26:a5:f6:9c:3a:36
- * 172.16.2.0/24
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:19 buckets:1 uRPF:18 to:[0:0]]
- * [0] [@4]: ipv4-glean: af_packet1
- * 172.16.2.1/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:20 buckets:1 uRPF:19 to:[0:0]]
- * [0] [@2]: dpo-receive: 172.16.2.1 on af_packet1
- * 224.0.0.0/8
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:15 buckets:1 uRPF:14 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 240.0.0.0/8
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:14 buckets:1 uRPF:13 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 255.255.255.255/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:16 buckets:1 uRPF:15 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * @cliexend
- * Example of how to display a single IPv4 FIB table:
- * @cliexstart{show ip fib table 7}
- * ipv4-VRF:7, fib_index 1, flow hash: src dst sport dport proto
- * 0.0.0.0/0
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:12 buckets:1 uRPF:11 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 0.0.0.0/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:13 buckets:1 uRPF:12 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 172.16.1.0/24
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:17 buckets:1 uRPF:16 to:[0:0]]
- * [0] [@4]: ipv4-glean: af_packet0
- * 172.16.1.1/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:18 buckets:1 uRPF:17 to:[1:84]]
- * [0] [@2]: dpo-receive: 172.16.1.1 on af_packet0
- * 172.16.1.2/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:21 buckets:1 uRPF:20 to:[0:0]]
- * [0] [@5]: ipv4 via 172.16.1.2 af_packet0: IP4: 02:fe:9e:70:7a:2b -> 26:a5:f6:9c:3a:36
- * 172.16.2.0/24
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:19 buckets:1 uRPF:18 to:[0:0]]
- * [0] [@4]: ipv4-glean: af_packet1
- * 172.16.2.1/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:20 buckets:1 uRPF:19 to:[0:0]]
- * [0] [@2]: dpo-receive: 172.16.2.1 on af_packet1
- * 224.0.0.0/8
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:15 buckets:1 uRPF:14 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 240.0.0.0/8
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:14 buckets:1 uRPF:13 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * 255.255.255.255/32
- * unicast-ip4-chain
- * [@0]: dpo-load-balance: [index:16 buckets:1 uRPF:15 to:[0:0]]
- * [0] [@0]: dpo-drop ip6
- * @cliexend
- * Example of how to display a summary of all IPv4 FIB tables:
- * @cliexstart{show ip fib summary}
- * ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto
- * Prefix length Count
- * 0 1
- * 8 2
- * 32 4
- * ipv4-VRF:7, fib_index 1, flow hash: src dst sport dport proto
- * Prefix length Count
- * 0 1
- * 8 2
- * 24 2
- * 32 4
- * @cliexend
- ?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (ip4_show_fib_command, static) = {
- .path = "show ip fib",
- .short_help = "show ip fib [summary] [table <table-id>] [index <fib-id>] [<ip4-addr>[/<mask>]] [mtrie]",
- .function = ip4_show_fib,
-};
-/* *INDENT-ON* */