vpp - Vector Packet Processing

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Diffstat (limited to 'src/vnet/udp')

0 files changed, 0 insertions, 0 deletions

/* * 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.h: 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. */ #ifndef included_vnet_config_h #define included_vnet_config_h #include <vlib/vlib.h> #include <vppinfra/heap.h> typedef struct { /* Features are prioritized by index. Smaller indices get performed first. */ u32 feature_index; /* VLIB node which performs feature. */ u32 node_index; /* Next index relative to previous node or main node. */ u32 next_index; /* Opaque per feature configuration data. */ u32 *feature_config; } vnet_config_feature_t; always_inline void vnet_config_feature_free (vnet_config_feature_t * f) { vec_free (f->feature_config); } typedef struct { /* Sorted vector of features for this configuration. */ vnet_config_feature_t *features; /* Config string as vector for hashing. */ u32 *config_string_vector; /* Config string including all next indices and feature data as a vector. */ u32 config_string_heap_index, config_string_heap_handle; /* Index in main pool. */ u32 index; /* Number of interfaces/traffic classes that reference this config. */ u32 reference_count; } vnet_config_t; typedef struct { /* Pool of configs. Index 0 is always null config and is never deleted. */ vnet_config_t *config_pool; /* Hash table mapping vector config string to config pool index. */ uword *config_string_hash; /* Global heap of configuration data. */ u32 *config_string_heap; /* Node index which starts/ends feature processing. */ u32 *start_node_indices, *end_node_indices_by_user_index, default_end_node_index; /* Interior feature processing nodes (not including start and end nodes). */ u32 *node_index_by_feature_index; /* vnet_config pool index by user index */ u32 *config_pool_index_by_user_index; /* Temporary vector for holding config strings. Used to avoid continually allocating vectors. */ u32 *config_string_temp; } vnet_config_main_t; always_inline void vnet_config_free (vnet_config_main_t * cm, vnet_config_t * c) { vnet_config_feature_t *f; vec_foreach (f, c->features) vnet_config_feature_free (f); vec_free (c->features); heap_dealloc (cm->config_string_heap, c->config_string_heap_handle); vec_free (c->config_string_vector); } always_inline void * vnet_get_config_data (vnet_config_main_t * cm, u32 * config_index, u32 * next_index, u32 n_data_bytes) { u32 i, n, *d; i = *config_index; d = heap_elt_at_index (cm->config_string_heap, i); n = round_pow2 (n_data_bytes, sizeof (d[0])) / sizeof (d[0]); /* Last 32 bits are next index. */ *next_index = d[n]; /* Advance config index to next config. */ *config_index = (i + n + 1); /* Return config data to user for this feature. */ return (void *) d; } 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); void vnet_config_del (vnet_config_main_t * cm, u32 config_id); /* Calls to add/delete features from configurations. */ u32 vnet_config_add_feature (vlib_main_t * vm, vnet_config_main_t * cm, u32 config_id, u32 feature_index, void *feature_config, u32 n_feature_config_bytes); u32 vnet_config_del_feature (vlib_main_t * vm, vnet_config_main_t * cm, u32 config_id, u32 feature_index, void *feature_config, u32 n_feature_config_bytes); u32 vnet_config_modify_end_node (vlib_main_t * vm, vnet_config_main_t * cm, u32 config_string_heap_index, u32 end_node_index); u8 *vnet_config_format_features (vlib_main_t * vm, vnet_config_main_t * cm, u32 config_index, u8 * s); #endif /* included_vnet_config_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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