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-rw-r--r--src/vnet/CMakeLists.txt3
-rw-r--r--src/vnet/fib/ip4_fib.c394
-rw-r--r--src/vnet/fib/ip4_fib.h90
-rw-r--r--src/vnet/fib/ip4_fib_16.c137
-rw-r--r--src/vnet/fib/ip4_fib_16.h106
-rw-r--r--src/vnet/fib/ip4_fib_8.c137
-rw-r--r--src/vnet/fib/ip4_fib_8.h106
-rw-r--r--src/vnet/fib/ip4_fib_hash.c249
-rw-r--r--src/vnet/fib/ip4_fib_hash.h74
-rw-r--r--src/vnet/interface_cli.c10
-rw-r--r--src/vnet/ip/ip4.h3
-rw-r--r--src/vnet/ip/ip_container_proxy.c26
-rw-r--r--src/vnet/ip6-nd/ip6_nd_api.c14
13 files changed, 932 insertions, 417 deletions
diff --git a/src/vnet/CMakeLists.txt b/src/vnet/CMakeLists.txt
index a800230c9d5..df23738013d 100644
--- a/src/vnet/CMakeLists.txt
+++ b/src/vnet/CMakeLists.txt
@@ -1164,7 +1164,10 @@ list(APPEND VNET_HEADERS
list(APPEND VNET_SOURCES
fib/fib.c
+ fib/ip4_fib_hash.c
fib/ip4_fib.c
+ fib/ip4_fib_16.c
+ fib/ip4_fib_8.c
fib/ip6_fib.c
fib/mpls_fib.c
fib/fib_table.c
diff --git a/src/vnet/fib/ip4_fib.c b/src/vnet/fib/ip4_fib.c
index e8ab653e53a..a343c2b5f37 100644
--- a/src/vnet/fib/ip4_fib.c
+++ b/src/vnet/fib/ip4_fib.c
@@ -99,6 +99,49 @@ static const ip4_fib_table_special_prefix_t ip4_specials[] = {
}
};
+void
+ip4_fib_hash_load_specials (u32 fib_index)
+{
+ /*
+ * 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_index,
+ &prefix,
+ ip4_specials[ii].ift_source,
+ ip4_specials[ii].ift_flag);
+ }
+}
+
+void
+ip4_fib_hash_flush_specials (u32 fib_index)
+{
+ int ii;
+
+ /*
+ * remove all the specials we added when the table was created.
+ * In reverse order so the default route is last.
+ */
+ for (ii = ARRAY_LEN(ip4_specials) - 1; ii >= 0; 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_index,
+ &prefix,
+ ip4_specials[ii].ift_source);
+ }
+}
static u32
ip4_create_fib_with_table_id (u32 table_id,
@@ -110,44 +153,34 @@ ip4_create_fib_with_table_id (u32 table_id,
pool_get(ip4_main.fibs, fib_table);
clib_memset(fib_table, 0, sizeof(*fib_table));
- pool_get_aligned(ip4_main.v4_fibs, v4_fib, CLIB_CACHE_LINE_BYTES);
-
- ASSERT((fib_table - ip4_main.fibs) ==
- (v4_fib - ip4_main.v4_fibs));
+ pool_get_aligned(ip4_fibs, v4_fib, CLIB_CACHE_LINE_BYTES);
fib_table->ft_proto = FIB_PROTOCOL_IP4;
- fib_table->ft_index =
- v4_fib->index =
- (fib_table - ip4_main.fibs);
+ fib_table->ft_index = (v4_fib - ip4_fibs);
+
+ /*
+ * It is required that the index of the fib_table_t in its pool
+ * is the same as the index of the ip4_fib_t in its pool, since the
+ * rest of the code usues the 'fib_index' to mean either of these
+ * objects, depending on the context.
+ */
+ ASSERT(fib_table->ft_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 =
- v4_fib->table_id =
+ v4_fib->hash.table_id =
table_id;
fib_table->ft_flow_hash_config = IP_FLOW_HASH_DEFAULT;
fib_table_lock(fib_table->ft_index, FIB_PROTOCOL_IP4, src);
- ip4_mtrie_16_init(&v4_fib->mtrie);
+ ip4_fib_table_init(v4_fib);
/*
* 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);
- }
+ ip4_fib_hash_load_specials(fib_table - ip4_main.fibs);
return (fib_table->ft_index);
}
@@ -156,25 +189,14 @@ void
ip4_fib_table_destroy (u32 fib_index)
{
fib_table_t *fib_table = pool_elt_at_index(ip4_main.fibs, fib_index);
- ip4_fib_t *v4_fib = pool_elt_at_index(ip4_main.v4_fibs, fib_index);
+ ip4_fib_t *v4_fib = pool_elt_at_index(ip4_fibs, fib_table->ft_index);
u32 *n_locks;
- int ii;
/*
* remove all the specials we added when the table was created.
* In reverse order so the default route is last.
*/
- for (ii = ARRAY_LEN(ip4_specials) - 1; ii >= 0; 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);
- }
+ ip4_fib_hash_flush_specials(fib_table - ip4_main.fibs);
/*
* validate no more routes.
@@ -195,9 +217,9 @@ ip4_fib_table_destroy (u32 fib_index)
}
vec_free(fib_table->ft_src_route_counts);
- ip4_mtrie_16_free(&v4_fib->mtrie);
+ ip4_fib_table_free(v4_fib);
- pool_put(ip4_main.v4_fibs, v4_fib);
+ pool_put(ip4_fibs, v4_fib);
pool_put(ip4_main.fibs, fib_table);
}
@@ -237,268 +259,6 @@ ip4_fib_table_get_index_for_sw_if_index (u32 sw_if_index)
return (ip4_main.fib_index_by_sw_if_index[sw_if_index]);
}
-/*
- * 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-existent 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_mtrie_16_route_add(&fib->mtrie, addr, len, dpo->dpoi_index);
-}
-
-void
-ip4_fib_table_fwding_dpo_remove (ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- const dpo_id_t *dpo,
- u32 cover_index)
-{
- const fib_prefix_t *cover_prefix;
- const dpo_id_t *cover_dpo;
-
- /*
- * We need to pass the MTRIE the LB index and address length of the
- * covering prefix, so it can fill the plys with the correct replacement
- * for the entry being removed
- */
- cover_prefix = fib_entry_get_prefix(cover_index);
- cover_dpo = fib_entry_contribute_ip_forwarding(cover_index);
-
- ip4_mtrie_16_route_del(&fib->mtrie,
- addr, len, dpo->dpoi_index,
- cover_prefix->fp_len,
- cover_dpo->dpoi_index);
-}
-
-void
-ip4_fib_table_walk (ip4_fib_t *fib,
- fib_table_walk_fn_t fn,
- void *ctx)
-{
- fib_prefix_t root = {
- .fp_proto = FIB_PROTOCOL_IP4,
- // address and length default to all 0
- };
-
- /*
- * A full tree walk is the dengenerate case of a sub-tree from
- * the very root
- */
- return (ip4_fib_table_sub_tree_walk(fib, &root, fn, ctx));
-}
-
-void
-ip4_fib_table_sub_tree_walk (ip4_fib_t *fib,
- const fib_prefix_t *root,
- fib_table_walk_fn_t fn,
- void *ctx)
-{
- fib_prefix_t *sub_trees = NULL;
- int i;
-
- /*
- * There is no efficient way to walk this array of hash tables.
- * so we walk each table with a mask length greater than and equal to
- * the required root and check it is covered by the root.
- */
- for (i = root->fp_len;
- i < ARRAY_LEN (fib->fib_entry_by_dst_address);
- i++)
- {
- uword * hash = fib->fib_entry_by_dst_address[i];
-
- if (NULL != hash)
- {
- ip4_address_t key;
- hash_pair_t * p;
-
- hash_foreach_pair (p, hash,
- ({
- key.as_u32 = p->key;
- if (ip4_destination_matches_route(&ip4_main,
- &key,
- &root->fp_addr.ip4,
- root->fp_len))
- {
- const fib_prefix_t *sub_tree;
- int skip = 0;
-
- /*
- * exclude sub-trees the walk does not want to explore
- */
- vec_foreach(sub_tree, sub_trees)
- {
- if (ip4_destination_matches_route(&ip4_main,
- &key,
- &sub_tree->fp_addr.ip4,
- sub_tree->fp_len))
- {
- skip = 1;
- break;
- }
- }
-
- if (!skip)
- {
- switch (fn(p->value[0], ctx))
- {
- case FIB_TABLE_WALK_CONTINUE:
- break;
- case FIB_TABLE_WALK_SUB_TREE_STOP: {
- fib_prefix_t pfx = {
- .fp_proto = FIB_PROTOCOL_IP4,
- .fp_len = i,
- .fp_addr.ip4 = key,
- };
- vec_add1(sub_trees, pfx);
- break;
- }
- case FIB_TABLE_WALK_STOP:
- goto done;
- }
- }
- }
- }));
- }
- }
-done:
- vec_free(sub_trees);
- return;
-}
/**
* Walk show context
@@ -573,12 +333,11 @@ ip4_show_fib (vlib_main_t * vm,
vlib_cli_command_t * cmd)
{
ip4_main_t * im4 = &ip4_main;
- fib_table_t * fib_table;
u64 total_mtrie_memory, total_hash_memory;
int verbose, matching, mtrie, memory;
ip4_address_t matching_address;
- u32 matching_mask = 32;
- int i, table_id = -1, fib_index = ~0;
+ u32 fib_index, matching_mask = 32;
+ int i, table_id = -1, user_fib_index = ~0;
int detail = 0;
verbose = 1;
@@ -610,21 +369,22 @@ ip4_show_fib (vlib_main_t * vm,
else if (unformat (input, "table %d", &table_id))
;
- else if (unformat (input, "index %d", &fib_index))
+ else if (unformat (input, "index %d", &user_fib_index))
;
else
break;
}
- pool_foreach (fib_table, im4->fibs)
+ pool_foreach_index (fib_index, im4->fibs)
{
- ip4_fib_t *fib = pool_elt_at_index(im4->v4_fibs, fib_table->ft_index);
+ fib_table_t *fib_table = pool_elt_at_index(im4->fibs, fib_index);
+ ip4_fib_t *fib = pool_elt_at_index(ip4_fibs, fib_table->ft_index);
fib_source_t source;
u8 *s = NULL;
- if (table_id >= 0 && table_id != (int)fib->table_id)
+ if (table_id >= 0 && table_id != (int)fib->hash.table_id)
continue;
- if (fib_index != ~0 && fib_index != (int)fib->index)
+ if (user_fib_index != ~0 && user_fib_index != fib_index)
continue;
if (memory)
@@ -632,12 +392,12 @@ ip4_show_fib (vlib_main_t * vm,
uword mtrie_size, hash_size;
- mtrie_size = ip4_mtrie_16_memory_usage(&fib->mtrie);
+ mtrie_size = ip4_mtrie_memory_usage(&fib->mtrie);
hash_size = 0;
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
+ for (i = 0; i < ARRAY_LEN (fib->hash.fib_entry_by_dst_address); i++)
{
- uword * hash = fib->fib_entry_by_dst_address[i];
+ uword * hash = fib->hash.fib_entry_by_dst_address[i];
if (NULL != hash)
{
hash_size += hash_bytes(hash);
@@ -646,7 +406,7 @@ ip4_show_fib (vlib_main_t * vm,
if (verbose)
vlib_cli_output (vm, "%U mtrie:%d hash:%d",
- format_fib_table_name, fib->index,
+ format_fib_table_name, fib_index,
FIB_PROTOCOL_IP4,
mtrie_size,
hash_size);
@@ -656,9 +416,9 @@ ip4_show_fib (vlib_main_t * vm,
}
s = format(s, "%U, fib_index:%d, flow hash:[%U] epoch:%d flags:%U locks:[",
- format_fib_table_name, fib->index,
+ format_fib_table_name, fib_index,
FIB_PROTOCOL_IP4,
- fib->index,
+ fib_index,
format_ip_flow_hash_config,
fib_table->ft_flow_hash_config,
fib_table->ft_epoch,
@@ -679,15 +439,15 @@ ip4_show_fib (vlib_main_t * vm,
/* Show summary? */
if (mtrie)
{
- vlib_cli_output (vm, "%U", format_ip4_mtrie_16, &fib->mtrie, verbose);
+ vlib_cli_output (vm, "%U", format_ip4_mtrie, &fib->mtrie, verbose);
continue;
}
if (! verbose)
{
vlib_cli_output (vm, "%=20s%=16s", "Prefix length", "Count");
- for (i = 0; i < ARRAY_LEN (fib->fib_entry_by_dst_address); i++)
+ for (i = 0; i < ARRAY_LEN (fib->hash.fib_entry_by_dst_address); i++)
{
- uword * hash = fib->fib_entry_by_dst_address[i];
+ uword * hash = fib->hash.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);
diff --git a/src/vnet/fib/ip4_fib.h b/src/vnet/fib/ip4_fib.h
index 46bfcaf85f1..0f6911dd3aa 100644
--- a/src/vnet/fib/ip4_fib.h
+++ b/src/vnet/fib/ip4_fib.h
@@ -34,77 +34,28 @@
#include <vnet/ip/ip.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_table.h>
-#include <vnet/ip/ip4_mtrie.h>
-
-typedef struct ip4_fib_t_
-{
- /** Required for pool_get_aligned */
- CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
-
- /**
- * Mtrie for fast lookups. Hash is used to maintain overlapping prefixes.
- * First member so it's in the first cacheline.
- */
- ip4_mtrie_16_t mtrie;
-
- /* Hash table for each prefix length mapping. */
- uword *fib_entry_by_dst_address[33];
-
- /* Table ID (hash key) for this FIB. */
- u32 table_id;
-
- /* Index into FIB vector. */
- u32 index;
-} ip4_fib_t;
-
-extern fib_node_index_t ip4_fib_table_lookup(const ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len);
-extern fib_node_index_t ip4_fib_table_lookup_exact_match(const ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len);
-
-extern void ip4_fib_table_entry_remove(ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len);
-
-extern void ip4_fib_table_entry_insert(ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- fib_node_index_t fib_entry_index);
-extern void ip4_fib_table_destroy(u32 fib_index);
-
-extern void ip4_fib_table_fwding_dpo_update(ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- const dpo_id_t *dpo);
-
-extern void ip4_fib_table_fwding_dpo_remove(ip4_fib_t *fib,
- const ip4_address_t *addr,
- u32 len,
- const dpo_id_t *dpo,
- fib_node_index_t cover_index);
-extern u32 ip4_fib_table_lookup_lb (ip4_fib_t *fib,
- const ip4_address_t * dst);
+#include <vnet/fib/ip4_fib_8.h>
+#include <vnet/fib/ip4_fib_16.h>
/**
- * @brief Walk all entries in a FIB table
- * N.B: This is NOT safe to deletes. If you need to delete walk the whole
- * table and store elements in a vector, then delete the elements
+ * the FIB module uses the 16-8-8 stride trie
*/
-extern void ip4_fib_table_walk(ip4_fib_t *fib,
- fib_table_walk_fn_t fn,
- void *ctx);
-
-/**
- * @brief Walk all entries in a sub-tree of the FIB table
- * N.B: This is NOT safe to deletes. If you need to delete walk the whole
- * table and store elements in a vector, then delete the elements
- */
-extern void ip4_fib_table_sub_tree_walk(ip4_fib_t *fib,
- const fib_prefix_t *root,
- fib_table_walk_fn_t fn,
- void *ctx);
+typedef ip4_fib_16_t ip4_fib_t;
+
+#define ip4_fibs ip4_fib_16s
+#define ip4_fib_table_lookup ip4_fib_16_table_lookup
+#define ip4_fib_table_lookup_exact_match ip4_fib_16_table_lookup_exact_match
+#define ip4_fib_table_entry_remove ip4_fib_16_table_entry_remove
+#define ip4_fib_table_entry_insert ip4_fib_16_table_entry_insert
+#define ip4_fib_table_fwding_dpo_update ip4_fib_16_table_fwding_dpo_update
+#define ip4_fib_table_fwding_dpo_remove ip4_fib_16_table_fwding_dpo_remove
+#define ip4_fib_table_lookup_lb ip4_fib_16_table_lookup_lb
+#define ip4_fib_table_walk ip4_fib_16_table_walk
+#define ip4_fib_table_sub_tree_walk ip4_fib_16_table_sub_tree_walk
+#define ip4_fib_table_init ip4_fib_16_table_init
+#define ip4_fib_table_free ip4_fib_16_table_free
+#define ip4_mtrie_memory_usage ip4_mtrie_16_memory_usage
+#define format_ip4_mtrie format_ip4_mtrie_16
/**
* @brief Get the FIB at the given index
@@ -112,7 +63,7 @@ extern void ip4_fib_table_sub_tree_walk(ip4_fib_t *fib,
static inline ip4_fib_t *
ip4_fib_get (u32 index)
{
- return (pool_elt_at_index(ip4_main.v4_fibs, index));
+ return (pool_elt_at_index(ip4_fibs, index));
}
always_inline u32
@@ -138,6 +89,7 @@ ip4_fib_lookup (ip4_main_t * im, u32 sw_if_index, ip4_address_t * dst)
extern u32 ip4_fib_table_find_or_create_and_lock(u32 table_id,
fib_source_t src);
extern u32 ip4_fib_table_create_and_lock(fib_source_t src);
+extern void ip4_fib_table_destroy(u32 fib_index);
extern u8 *format_ip4_fib_table_memory(u8 * s, va_list * args);
diff --git a/src/vnet/fib/ip4_fib_16.c b/src/vnet/fib/ip4_fib_16.c
new file mode 100644
index 00000000000..7699e8926f1
--- /dev/null
+++ b/src/vnet/fib/ip4_fib_16.c
@@ -0,0 +1,137 @@
+/*
+ * 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>
+
+ip4_fib_16_t *ip4_fib_16s;
+
+void
+ip4_fib_16_table_init (ip4_fib_16_t *fib)
+{
+ ip4_mtrie_16_init(&fib->mtrie);
+}
+
+void
+ip4_fib_16_table_free (ip4_fib_16_t *fib)
+{
+ ip4_mtrie_16_free(&fib->mtrie);
+}
+
+/*
+ * ip4_fib_16_table_lookup_exact_match
+ *
+ * Exact match prefix lookup
+ */
+fib_node_index_t
+ip4_fib_16_table_lookup_exact_match (const ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len)
+{
+ return (ip4_fib_hash_table_lookup_exact_match(&fib->hash, addr, len));
+}
+
+/*
+ * ip4_fib_16_table_lookup_adj
+ *
+ * Longest prefix match
+ */
+index_t
+ip4_fib_16_table_lookup_lb (ip4_fib_16_t *fib,
+ const ip4_address_t *addr)
+{
+ return (ip4_fib_hash_table_lookup_lb(&fib->hash, addr));
+}
+
+/*
+ * ip4_fib_16_table_lookup
+ *
+ * Longest prefix match
+ */
+fib_node_index_t
+ip4_fib_16_table_lookup (const ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len)
+{
+ return (ip4_fib_hash_table_lookup(&fib->hash, addr, len));
+}
+
+void
+ip4_fib_16_table_entry_insert (ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ fib_node_index_t fib_entry_index)
+{
+ return (ip4_fib_hash_table_entry_insert(&fib->hash, addr, len, fib_entry_index));
+}
+
+void
+ip4_fib_16_table_entry_remove (ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len)
+{
+ return (ip4_fib_hash_table_entry_remove(&fib->hash, addr, len));
+}
+
+void
+ip4_fib_16_table_fwding_dpo_update (ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo)
+{
+ ip4_mtrie_16_route_add(&fib->mtrie, addr, len, dpo->dpoi_index);
+}
+
+void
+ip4_fib_16_table_fwding_dpo_remove (ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo,
+ u32 cover_index)
+{
+ const fib_prefix_t *cover_prefix;
+ const dpo_id_t *cover_dpo;
+
+ /*
+ * We need to pass the MTRIE the LB index and address length of the
+ * covering prefix, so it can fill the plys with the correct replacement
+ * for the entry being removed
+ */
+ cover_prefix = fib_entry_get_prefix(cover_index);
+ cover_dpo = fib_entry_contribute_ip_forwarding(cover_index);
+
+ ip4_mtrie_16_route_del(&fib->mtrie,
+ addr, len, dpo->dpoi_index,
+ cover_prefix->fp_len,
+ cover_dpo->dpoi_index);
+}
+
+void
+ip4_fib_16_table_walk (ip4_fib_16_t *fib,
+ fib_table_walk_fn_t fn,
+ void *ctx)
+{
+ ip4_fib_hash_table_walk(&fib->hash, fn, ctx);
+}
+
+void
+ip4_fib_16_table_sub_tree_walk (ip4_fib_16_t *fib,
+ const fib_prefix_t *root,
+ fib_table_walk_fn_t fn,
+ void *ctx)
+{
+ ip4_fib_hash_table_sub_tree_walk(&fib->hash, root, fn, ctx);
+}
diff --git a/src/vnet/fib/ip4_fib_16.h b/src/vnet/fib/ip4_fib_16.h
new file mode 100644
index 00000000000..b82ad57a04a
--- /dev/null
+++ b/src/vnet/fib/ip4_fib_16.h
@@ -0,0 +1,106 @@
+/*
+ * 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.
+ */
+/**
+ * @brief The IPv4 FIB
+ *
+ * FIBs are composed of two prefix data-bases (akak tables). The non-forwarding
+ * table contains all the routes that the control plane has programmed, the
+ * forwarding table contains the sub-set of those routes that can be used to
+ * forward packets.
+ * In the IPv4 FIB the non-forwarding table is an array of hash tables indexed
+ * by mask length, the forwarding table is an mtrie
+ *
+ * This IPv4 FIB is used by the protocol independent FIB. So directly using
+ * this APIs in client code is not encouraged. However, this IPv4 FIB can be
+ * used if all the client wants is an IPv4 prefix data-base
+ */
+
+#ifndef __IP4_FIB_16_H__
+#define __IP4_FIB_16_H__
+
+#include <vnet/fib/ip4_fib_hash.h>
+#include <vnet/ip/ip4_mtrie.h>
+
+typedef struct ip4_fib_16_t_
+{
+ /** Required for pool_get_aligned */
+ CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
+
+ /**
+ * Mtrie for fast lookups. Hash is used to maintain overlapping prefixes.
+ * First member so it's in the first cacheline.
+ */
+ ip4_mtrie_16_t mtrie;
+
+ /**
+ * The hash table DB
+ */
+ ip4_fib_hash_t hash;
+} ip4_fib_16_t;
+
+extern ip4_fib_16_t *ip4_fib_16s;
+
+extern fib_node_index_t ip4_fib_16_table_lookup(const ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+extern fib_node_index_t ip4_fib_16_table_lookup_exact_match(const ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_16_table_entry_remove(ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_16_table_entry_insert(ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ fib_node_index_t fib_entry_index);
+extern void ip4_fib_16_table_free(ip4_fib_16_t *fib);
+extern void ip4_fib_16_table_init(ip4_fib_16_t *fib);
+
+extern void ip4_fib_16_table_fwding_dpo_update(ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo);
+
+extern void ip4_fib_16_table_fwding_dpo_remove(ip4_fib_16_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo,
+ fib_node_index_t cover_index);
+extern u32 ip4_fib_16_table_lookup_lb (ip4_fib_16_t *fib,
+ const ip4_address_t * dst);
+
+/**
+ * @brief Walk all entries in a FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_16_table_walk(ip4_fib_16_t *fib,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+/**
+ * @brief Walk all entries in a sub-tree of the FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_16_table_sub_tree_walk(ip4_fib_16_t *fib,
+ const fib_prefix_t *root,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+#endif
+
diff --git a/src/vnet/fib/ip4_fib_8.c b/src/vnet/fib/ip4_fib_8.c
new file mode 100644
index 00000000000..587e28a8c9c
--- /dev/null
+++ b/src/vnet/fib/ip4_fib_8.c
@@ -0,0 +1,137 @@
+/*
+ * 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>
+
+ip4_fib_8_t *ip4_fib_8s;
+
+void
+ip4_fib_8_table_init (ip4_fib_8_t *fib)
+{
+ ip4_mtrie_8_init(&fib->mtrie);
+}
+
+void
+ip4_fib_8_table_free (ip4_fib_8_t *fib)
+{
+ ip4_mtrie_8_free(&fib->mtrie);
+}
+
+/*
+ * ip4_fib_8_table_lookup_exact_match
+ *
+ * Exact match prefix lookup
+ */
+fib_node_index_t
+ip4_fib_8_table_lookup_exact_match (const ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len)
+{
+ return (ip4_fib_hash_table_lookup_exact_match(&fib->hash, addr, len));
+}
+
+/*
+ * ip4_fib_8_table_lookup_adj
+ *
+ * Longest prefix match
+ */
+index_t
+ip4_fib_8_table_lookup_lb (ip4_fib_8_t *fib,
+ const ip4_address_t *addr)
+{
+ return (ip4_fib_hash_table_lookup_lb(&fib->hash, addr));
+}
+
+/*
+ * ip4_fib_8_table_lookup
+ *
+ * Longest prefix match
+ */
+fib_node_index_t
+ip4_fib_8_table_lookup (const ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len)
+{
+ return (ip4_fib_hash_table_lookup(&fib->hash, addr, len));
+}
+
+void
+ip4_fib_8_table_entry_insert (ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ fib_node_index_t fib_entry_index)
+{
+ return (ip4_fib_hash_table_entry_insert(&fib->hash, addr, len, fib_entry_index));
+}
+
+void
+ip4_fib_8_table_entry_remove (ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len)
+{
+ return (ip4_fib_hash_table_entry_remove(&fib->hash, addr, len));
+}
+
+void
+ip4_fib_8_table_fwding_dpo_update (ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo)
+{
+ ip4_mtrie_8_route_add(&fib->mtrie, addr, len, dpo->dpoi_index);
+}
+
+void
+ip4_fib_8_table_fwding_dpo_remove (ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo,
+ u32 cover_index)
+{
+ const fib_prefix_t *cover_prefix;
+ const dpo_id_t *cover_dpo;
+
+ /*
+ * We need to pass the MTRIE the LB index and address length of the
+ * covering prefix, so it can fill the plys with the correct replacement
+ * for the entry being removed
+ */
+ cover_prefix = fib_entry_get_prefix(cover_index);
+ cover_dpo = fib_entry_contribute_ip_forwarding(cover_index);
+
+ ip4_mtrie_8_route_del(&fib->mtrie,
+ addr, len, dpo->dpoi_index,
+ cover_prefix->fp_len,
+ cover_dpo->dpoi_index);
+}
+
+void
+ip4_fib_8_table_walk (ip4_fib_8_t *fib,
+ fib_table_walk_fn_t fn,
+ void *ctx)
+{
+ ip4_fib_hash_table_walk(&fib->hash, fn, ctx);
+}
+
+void
+ip4_fib_8_table_sub_tree_walk (ip4_fib_8_t *fib,
+ const fib_prefix_t *root,
+ fib_table_walk_fn_t fn,
+ void *ctx)
+{
+ ip4_fib_hash_table_sub_tree_walk(&fib->hash, root, fn, ctx);
+}
diff --git a/src/vnet/fib/ip4_fib_8.h b/src/vnet/fib/ip4_fib_8.h
new file mode 100644
index 00000000000..0964f3ab133
--- /dev/null
+++ b/src/vnet/fib/ip4_fib_8.h
@@ -0,0 +1,106 @@
+/*
+ * 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.
+ */
+/**
+ * @brief The IPv4 FIB
+ *
+ * FIBs are composed of two prefix data-bases (akak tables). The non-forwarding
+ * table contains all the routes that the control plane has programmed, the
+ * forwarding table contains the sub-set of those routes that can be used to
+ * forward packets.
+ * In the IPv4 FIB the non-forwarding table is an array of hash tables indexed
+ * by mask length, the forwarding table is an mtrie
+ *
+ * This IPv4 FIB is used by the protocol independent FIB. So directly using
+ * this APIs in client code is not encouraged. However, this IPv4 FIB can be
+ * used if all the client wants is an IPv4 prefix data-base
+ */
+
+#ifndef __IP4_FIB_8_H__
+#define __IP4_FIB_8_H__
+
+#include <vnet/fib/ip4_fib_hash.h>
+#include <vnet/ip/ip4_mtrie.h>
+
+typedef struct ip4_fib_8_t_
+{
+ /** Required for pool_get_aligned */
+ CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
+
+ /**
+ * Mtrie for fast lookups. Hash is used to maintain overlapping prefixes.
+ * First member so it's in the first cacheline.
+ */
+ ip4_mtrie_8_t mtrie;
+
+ /**
+ * The hash table DB
+ */
+ ip4_fib_hash_t hash;
+} ip4_fib_8_t;
+
+extern ip4_fib_8_t *ip4_fib_8s;
+
+extern fib_node_index_t ip4_fib_8_table_lookup(const ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+extern fib_node_index_t ip4_fib_8_table_lookup_exact_match(const ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_8_table_entry_remove(ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_8_table_entry_insert(ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ fib_node_index_t fib_entry_index);
+extern void ip4_fib_8_table_free(ip4_fib_8_t *fib);
+extern void ip4_fib_8_table_init(ip4_fib_8_t *fib);
+
+extern void ip4_fib_8_table_fwding_dpo_update(ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo);
+
+extern void ip4_fib_8_table_fwding_dpo_remove(ip4_fib_8_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ const dpo_id_t *dpo,
+ fib_node_index_t cover_index);
+extern u32 ip4_fib_8_table_lookup_lb (ip4_fib_8_t *fib,
+ const ip4_address_t * dst);
+
+/**
+ * @brief Walk all entries in a FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_8_table_walk(ip4_fib_8_t *fib,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+/**
+ * @brief Walk all entries in a sub-tree of the FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_8_table_sub_tree_walk(ip4_fib_8_t *fib,
+ const fib_prefix_t *root,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+#endif
+
diff --git a/src/vnet/fib/ip4_fib_hash.c b/src/vnet/fib/ip4_fib_hash.c
new file mode 100644
index 00000000000..f42cf28f53e
--- /dev/null
+++ b/src/vnet/fib/ip4_fib_hash.c
@@ -0,0 +1,249 @@
+/*
+ * 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>
+
+/*
+ * ip4_fib_hash_table_lookup_exact_match
+ *
+ * Exact match prefix lookup
+ */
+fib_node_index_t
+ip4_fib_hash_table_lookup_exact_match (const ip4_fib_hash_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_hash_table_lookup_adj
+ *
+ * Longest prefix match
+ */
+index_t
+ip4_fib_hash_table_lookup_lb (const ip4_fib_hash_t *fib,
+ const ip4_address_t *addr)
+{
+ fib_node_index_t fei;
+
+ fei = ip4_fib_hash_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_hash_table_lookup
+ *
+ * Longest prefix match
+ */
+fib_node_index_t
+ip4_fib_hash_table_lookup (const ip4_fib_hash_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_hash_table_entry_insert (ip4_fib_hash_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_hash_table_entry_remove (ip4_fib_hash_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-existent entry. i'll allow it.
+ */
+ }
+ else
+ {
+ hash_unset(hash, key);
+ }
+
+ fib->fib_entry_by_dst_address[len] = hash;
+}
+
+void
+ip4_fib_hash_table_walk (ip4_fib_hash_t *fib,
+ fib_table_walk_fn_t fn,
+ void *ctx)
+{
+ fib_prefix_t root = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ // address and length default to all 0
+ };
+
+ /*
+ * A full tree walk is the dengenerate case of a sub-tree from
+ * the very root
+ */
+ return (ip4_fib_hash_table_sub_tree_walk(fib, &root, fn, ctx));
+}
+
+void
+ip4_fib_hash_table_sub_tree_walk (ip4_fib_hash_t *fib,
+ const fib_prefix_t *root,
+ fib_table_walk_fn_t fn,
+ void *ctx)
+{
+ fib_prefix_t *sub_trees = NULL;
+ int i;
+
+ /*
+ * There is no efficient way to walk this array of hash tables.
+ * so we walk each table with a mask length greater than and equal to
+ * the required root and check it is covered by the root.
+ */
+ for (i = root->fp_len;
+ i < ARRAY_LEN (fib->fib_entry_by_dst_address);
+ i++)
+ {
+ uword * hash = fib->fib_entry_by_dst_address[i];
+
+ if (NULL != hash)
+ {
+ ip4_address_t key;
+ hash_pair_t * p;
+
+ hash_foreach_pair (p, hash,
+ ({
+ key.as_u32 = p->key;
+ if (ip4_destination_matches_route(&ip4_main,
+ &key,
+ &root->fp_addr.ip4,
+ root->fp_len))
+ {
+ const fib_prefix_t *sub_tree;
+ int skip = 0;
+
+ /*
+ * exclude sub-trees the walk does not want to explore
+ */
+ vec_foreach(sub_tree, sub_trees)
+ {
+ if (ip4_destination_matches_route(&ip4_main,
+ &key,
+ &sub_tree->fp_addr.ip4,
+ sub_tree->fp_len))
+ {
+ skip = 1;
+ break;
+ }
+ }
+
+ if (!skip)
+ {
+ switch (fn(p->value[0], ctx))
+ {
+ case FIB_TABLE_WALK_CONTINUE:
+ break;
+ case FIB_TABLE_WALK_SUB_TREE_STOP: {
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = i,
+ .fp_addr.ip4 = key,
+ };
+ vec_add1(sub_trees, pfx);
+ break;
+ }
+ case FIB_TABLE_WALK_STOP:
+ goto done;
+ }
+ }
+ }
+ }));
+ }
+ }
+done:
+ vec_free(sub_trees);
+ return;
+}
+
diff --git a/src/vnet/fib/ip4_fib_hash.h b/src/vnet/fib/ip4_fib_hash.h
new file mode 100644
index 00000000000..84b3b9ae834
--- /dev/null
+++ b/src/vnet/fib/ip4_fib_hash.h
@@ -0,0 +1,74 @@
+/*
+ * 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.
+ */
+/**
+ * @brief The IPv4 FIB Hash table
+ */
+
+#ifndef __IP4_FIB_HASH_H__
+#define __IP4_FIB_HASH_H__
+
+#include <vlib/vlib.h>
+#include <vnet/ip/ip.h>
+
+typedef struct ip4_fib_hash_t_
+{
+ /* Hash table for each prefix length mapping. */
+ uword *fib_entry_by_dst_address[33];
+
+ /* Table ID (hash key) for this FIB. */
+ u32 table_id;
+} ip4_fib_hash_t;
+
+extern fib_node_index_t ip4_fib_hash_table_lookup(const ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+extern index_t ip4_fib_hash_table_lookup_lb(const ip4_fib_hash_t *fib,
+ const ip4_address_t *addr);
+extern fib_node_index_t ip4_fib_hash_table_lookup_exact_match(const ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_hash_table_entry_remove(ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len);
+
+extern void ip4_fib_hash_table_entry_insert(ip4_fib_hash_t *fib,
+ const ip4_address_t *addr,
+ u32 len,
+ fib_node_index_t fib_entry_index);
+extern void ip4_fib_hash_table_init(ip4_fib_hash_t *fib);
+extern void ip4_fib_hash_table_destroy(ip4_fib_hash_t *fib);
+
+/**
+ * @brief Walk all entries in a FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_hash_table_walk(ip4_fib_hash_t *fib,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+/**
+ * @brief Walk all entries in a sub-tree of the FIB table
+ * N.B: This is NOT safe to deletes. If you need to delete walk the whole
+ * table and store elements in a vector, then delete the elements
+ */
+extern void ip4_fib_hash_table_sub_tree_walk(ip4_fib_hash_t *fib,
+ const fib_prefix_t *root,
+ fib_table_walk_fn_t fn,
+ void *ctx);
+
+#endif
+
diff --git a/src/vnet/interface_cli.c b/src/vnet/interface_cli.c
index 68431860183..2bddf29b70f 100644
--- a/src/vnet/interface_cli.c
+++ b/src/vnet/interface_cli.c
@@ -448,11 +448,11 @@ show_sw_interfaces (vlib_main_t * vm,
1 /* honor unnumbered */,
({
ip4_address_t *r4 = ip_interface_address_get_address (lm4, ia);
- if (fib4->table_id)
- vlib_cli_output (vm, " L3 %U/%d ip4 table-id %d fib-idx %d",
- format_ip4_address, r4, ia->address_length,
- fib4->table_id,
- ip4_fib_index_from_table_id (fib4->table_id));
+ if (fib4->hash.table_id)
+ vlib_cli_output (
+ vm, " L3 %U/%d ip4 table-id %d fib-idx %d", format_ip4_address,
+ r4, ia->address_length, fib4->hash.table_id,
+ ip4_fib_index_from_table_id (fib4->hash.table_id));
else
vlib_cli_output (vm, " L3 %U/%d",
format_ip4_address, r4, ia->address_length);
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h
index bc971a2b7ca..dba27851c8f 100644
--- a/src/vnet/ip/ip4.h
+++ b/src/vnet/ip/ip4.h
@@ -111,9 +111,6 @@ typedef struct ip4_main_t
/** Vector of FIBs. */
struct fib_table_t_ *fibs;
- /** Vector of MTries. */
- struct ip4_fib_t_ *v4_fibs;
-
/** Vector of MFIBs. */
struct mfib_table_t_ *mfibs;
diff --git a/src/vnet/ip/ip_container_proxy.c b/src/vnet/ip/ip_container_proxy.c
index 2c94b70ec85..18d07ba6082 100644
--- a/src/vnet/ip/ip_container_proxy.c
+++ b/src/vnet/ip/ip_container_proxy.c
@@ -132,27 +132,23 @@ ip_container_proxy_fib_table_walk (fib_node_index_t fei, void *arg)
void
ip_container_proxy_walk (ip_container_proxy_cb_t cb, void *ctx)
{
- fib_table_t *fib_table;
ip_container_proxy_walk_ctx_t wctx = {
.cb = cb,
.ctx = ctx,
};
+ u32 fib_index;
/* *INDENT-OFF* */
- pool_foreach (fib_table, ip4_main.fibs)
- {
- fib_table_walk(fib_table->ft_index,
- FIB_PROTOCOL_IP4,
- ip_container_proxy_fib_table_walk,
- &wctx);
- }
- pool_foreach (fib_table, ip6_main.fibs)
- {
- fib_table_walk(fib_table->ft_index,
- FIB_PROTOCOL_IP6,
- ip_container_proxy_fib_table_walk,
- &wctx);
- }
+ pool_foreach_index (fib_index, ip4_main.fibs)
+ {
+ fib_table_walk (fib_index, FIB_PROTOCOL_IP4,
+ ip_container_proxy_fib_table_walk, &wctx);
+ }
+ pool_foreach_index (fib_index, ip6_main.fibs)
+ {
+ fib_table_walk (fib_index, FIB_PROTOCOL_IP6,
+ ip_container_proxy_fib_table_walk, &wctx);
+ }
/* *INDENT-ON* */
}
diff --git a/src/vnet/ip6-nd/ip6_nd_api.c b/src/vnet/ip6-nd/ip6_nd_api.c
index 9e4024670e6..b949e218cfd 100644
--- a/src/vnet/ip6-nd/ip6_nd_api.c
+++ b/src/vnet/ip6-nd/ip6_nd_api.c
@@ -83,7 +83,7 @@ static void
vl_api_ip6nd_proxy_dump_t_handler (vl_api_ip6nd_proxy_dump_t * mp)
{
ip6_main_t *im6 = &ip6_main;
- fib_table_t *fib_table;
+ u32 fib_index;
api_ip6nd_proxy_fib_table_walk_ctx_t ctx = {
.indices = NULL,
};
@@ -96,13 +96,11 @@ vl_api_ip6nd_proxy_dump_t_handler (vl_api_ip6nd_proxy_dump_t * mp)
return;
/* *INDENT-OFF* */
- pool_foreach (fib_table, im6->fibs)
- {
- fib_table_walk(fib_table->ft_index,
- FIB_PROTOCOL_IP6,
- api_ip6nd_proxy_fib_table_walk,
- &ctx);
- }
+ pool_foreach_index (fib_index, im6->fibs)
+ {
+ fib_table_walk (fib_index, FIB_PROTOCOL_IP6,
+ api_ip6nd_proxy_fib_table_walk, &ctx);
+ }
/* *INDENT-ON* */
vec_sort_with_function (ctx.indices, fib_entry_cmp_for_sort);