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-rw-r--r--vnet/vnet/config.c361
1 files changed, 0 insertions, 361 deletions
diff --git a/vnet/vnet/config.c b/vnet/vnet/config.c
deleted file mode 100644
index 03189d77cd5..00000000000
--- a/vnet/vnet/config.c
+++ /dev/null
@@ -1,361 +0,0 @@
-/*
- * 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.
- */
-/*
- * config.c: feature configuration
- *
- * 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/vnet.h>
-
-static vnet_config_feature_t *
-duplicate_feature_vector (vnet_config_feature_t * feature_vector)
-{
- vnet_config_feature_t *result, *f;
-
- result = vec_dup (feature_vector);
- vec_foreach (f, result) f->feature_config = vec_dup (f->feature_config);
-
- return result;
-}
-
-static void
-free_feature_vector (vnet_config_feature_t * feature_vector)
-{
- vnet_config_feature_t *f;
-
- vec_foreach (f, feature_vector) vnet_config_feature_free (f);
- vec_free (feature_vector);
-}
-
-static u32
-add_next (vlib_main_t * vm,
- vnet_config_main_t * cm, u32 last_node_index, u32 this_node_index)
-{
- u32 i, ni = ~0;
-
- if (last_node_index != ~0)
- return vlib_node_add_next (vm, last_node_index, this_node_index);
-
- for (i = 0; i < vec_len (cm->start_node_indices); i++)
- {
- u32 tmp;
- tmp =
- vlib_node_add_next (vm, cm->start_node_indices[i], this_node_index);
- if (ni == ~0)
- ni = tmp;
- /* Start nodes to first must agree on next indices. */
- ASSERT (ni == tmp);
- }
-
- return ni;
-}
-
-static vnet_config_t *
-find_config_with_features (vlib_main_t * vm,
- vnet_config_main_t * cm,
- vnet_config_feature_t * feature_vector)
-{
- u32 last_node_index = ~0;
- vnet_config_feature_t *f;
- u32 *config_string;
- uword *p;
- vnet_config_t *c;
-
- config_string = cm->config_string_temp;
- cm->config_string_temp = 0;
- if (config_string)
- _vec_len (config_string) = 0;
-
- vec_foreach (f, feature_vector)
- {
- /* Connect node graph. */
- f->next_index = add_next (vm, cm, last_node_index, f->node_index);
- last_node_index = f->node_index;
-
- /* Store next index in config string. */
- vec_add1 (config_string, f->next_index);
-
- /* Store feature config. */
- vec_add (config_string, f->feature_config, vec_len (f->feature_config));
- }
-
- /* Terminate config string with next for end node. */
- if (last_node_index == ~0 || last_node_index != cm->end_node_index)
- {
- u32 next_index = add_next (vm, cm, last_node_index, cm->end_node_index);
- vec_add1 (config_string, next_index);
- }
-
- /* See if config string is unique. */
- p = hash_get_mem (cm->config_string_hash, config_string);
- if (p)
- {
- /* Not unique. Share existing config. */
- cm->config_string_temp = config_string; /* we'll use it again later. */
- free_feature_vector (feature_vector);
- c = pool_elt_at_index (cm->config_pool, p[0]);
- }
- else
- {
- u32 *d;
-
- pool_get (cm->config_pool, c);
- c->index = c - cm->config_pool;
- c->features = feature_vector;
- c->config_string_vector = config_string;
-
- /* Allocate copy of config string in heap.
- VLIB buffers will maintain pointers to heap as they read out
- configuration data. */
- c->config_string_heap_index
- = heap_alloc (cm->config_string_heap, vec_len (config_string) + 1,
- c->config_string_heap_handle);
-
- /* First element in heap points back to pool index. */
- d =
- vec_elt_at_index (cm->config_string_heap,
- c->config_string_heap_index);
- d[0] = c->index;
- clib_memcpy (d + 1, config_string, vec_bytes (config_string));
- hash_set_mem (cm->config_string_hash, config_string, c->index);
-
- c->reference_count = 0; /* will be incremented by caller. */
- }
-
- return c;
-}
-
-void
-vnet_config_init (vlib_main_t * vm,
- vnet_config_main_t * cm,
- char *start_node_names[],
- int n_start_node_names,
- char *feature_node_names[], int n_feature_node_names)
-{
- vlib_node_t *n;
- u32 i;
-
- memset (cm, 0, sizeof (cm[0]));
-
- cm->config_string_hash =
- hash_create_vec (0,
- STRUCT_SIZE_OF (vnet_config_t, config_string_vector[0]),
- sizeof (uword));
-
- ASSERT (n_feature_node_names >= 1);
-
- vec_resize (cm->start_node_indices, n_start_node_names);
- for (i = 0; i < n_start_node_names; i++)
- {
- n = vlib_get_node_by_name (vm, (u8 *) start_node_names[i]);
- /* Given node name must exist. */
- ASSERT (n != 0);
- cm->start_node_indices[i] = n->index;
- }
-
- vec_resize (cm->node_index_by_feature_index, n_feature_node_names);
- for (i = 0; i < n_feature_node_names; i++)
- {
- if (!feature_node_names[i])
- cm->node_index_by_feature_index[i] = ~0;
- else
- {
- n = vlib_get_node_by_name (vm, (u8 *) feature_node_names[i]);
- /* Given node may exist in plug-in library which is not present */
- if (n)
- {
- if (i + 1 == n_feature_node_names)
- cm->end_node_index = n->index;
- cm->node_index_by_feature_index[i] = n->index;
- }
- else
- cm->node_index_by_feature_index[i] = ~0;
- }
- }
-}
-
-static void
-remove_reference (vnet_config_main_t * cm, vnet_config_t * c)
-{
- ASSERT (c->reference_count > 0);
- c->reference_count -= 1;
- if (c->reference_count == 0)
- {
- hash_unset (cm->config_string_hash, c->config_string_vector);
- vnet_config_free (cm, c);
- pool_put (cm->config_pool, c);
- }
-}
-
-static int
-feature_cmp (void *a1, void *a2)
-{
- vnet_config_feature_t *f1 = a1;
- vnet_config_feature_t *f2 = a2;
-
- return (int) f1->feature_index - f2->feature_index;
-}
-
-always_inline u32 *
-vnet_get_config_heap (vnet_config_main_t * cm, u32 ci)
-{
- return heap_elt_at_index (cm->config_string_heap, ci);
-}
-
-u32
-vnet_config_add_feature (vlib_main_t * vm,
- vnet_config_main_t * cm,
- u32 config_string_heap_index,
- u32 feature_index,
- void *feature_config, u32 n_feature_config_bytes)
-{
- vnet_config_t *old, *new;
- vnet_config_feature_t *new_features, *f;
- u32 n_feature_config_u32s;
- u32 node_index = vec_elt (cm->node_index_by_feature_index, feature_index);
-
- if (node_index == ~0) // feature node does not exist
- return config_string_heap_index; // return original config index
-
- if (config_string_heap_index == ~0)
- {
- old = 0;
- new_features = 0;
- }
- else
- {
- u32 *p = vnet_get_config_heap (cm, config_string_heap_index);
- old = pool_elt_at_index (cm->config_pool, p[-1]);
- new_features = old->features;
- if (new_features)
- new_features = duplicate_feature_vector (new_features);
- }
-
- vec_add2 (new_features, f, 1);
- f->feature_index = feature_index;
- f->node_index = node_index;
-
- n_feature_config_u32s =
- round_pow2 (n_feature_config_bytes,
- sizeof (f->feature_config[0])) /
- sizeof (f->feature_config[0]);
- vec_add (f->feature_config, feature_config, n_feature_config_u32s);
-
- /* Sort (prioritize) features. */
- if (vec_len (new_features) > 1)
- vec_sort_with_function (new_features, feature_cmp);
-
- if (old)
- remove_reference (cm, old);
-
- new = find_config_with_features (vm, cm, new_features);
- new->reference_count += 1;
-
- /*
- * User gets pointer to config string first element
- * (which defines the pool index
- * this config string comes from).
- */
- vec_validate (cm->config_pool_index_by_user_index,
- new->config_string_heap_index + 1);
- cm->config_pool_index_by_user_index[new->config_string_heap_index + 1]
- = new - cm->config_pool;
- return new->config_string_heap_index + 1;
-}
-
-u32
-vnet_config_del_feature (vlib_main_t * vm,
- vnet_config_main_t * cm,
- u32 config_string_heap_index,
- u32 feature_index,
- void *feature_config, u32 n_feature_config_bytes)
-{
- vnet_config_t *old, *new;
- vnet_config_feature_t *new_features, *f;
- u32 n_feature_config_u32s;
-
- {
- u32 *p = vnet_get_config_heap (cm, config_string_heap_index);
-
- old = pool_elt_at_index (cm->config_pool, p[-1]);
- }
-
- n_feature_config_u32s =
- round_pow2 (n_feature_config_bytes,
- sizeof (f->feature_config[0])) /
- sizeof (f->feature_config[0]);
-
- /* Find feature with same index and opaque data. */
- vec_foreach (f, old->features)
- {
- if (f->feature_index == feature_index
- && vec_len (f->feature_config) == n_feature_config_u32s
- && (n_feature_config_u32s == 0
- || !memcmp (f->feature_config, feature_config,
- n_feature_config_bytes)))
- break;
- }
-
- /* Feature not found. */
- if (f >= vec_end (old->features))
- return config_string_heap_index; // return original config index
-
- new_features = duplicate_feature_vector (old->features);
- f = new_features + (f - old->features);
- vnet_config_feature_free (f);
- vec_delete (new_features, 1, f - new_features);
-
- /* must remove old from config_pool now as it may be expanded and change
- memory location if the following function find_config_with_features()
- adds a new config because none of existing config's has matching features
- and so can be reused */
- remove_reference (cm, old);
- new = find_config_with_features (vm, cm, new_features);
- new->reference_count += 1;
-
- vec_validate (cm->config_pool_index_by_user_index,
- new->config_string_heap_index + 1);
- cm->config_pool_index_by_user_index[new->config_string_heap_index + 1]
- = new - cm->config_pool;
- return new->config_string_heap_index + 1;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */