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/*
* 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/adj/adj_delegate.h>
#include <vnet/adj/adj.h>
#include <vnet/adj/adj_internal.h>
static adj_delegate_t *
adj_delegate_find_i (const ip_adjacency_t *adj,
adj_delegate_type_t type,
u32 *index)
{
adj_delegate_t *delegate;
int ii;
ii = 0;
vec_foreach(delegate, adj->ia_delegates)
{
if (delegate->ad_type == type)
{
if (NULL != index)
*index = ii;
return (delegate);
}
else
{
ii++;
}
}
return (NULL);
}
adj_delegate_t *
adj_delegate_get (const ip_adjacency_t *adj,
adj_delegate_type_t type)
{
return (adj_delegate_find_i(adj, type, NULL));
}
void
adj_delegate_remove (ip_adjacency_t *adj,
adj_delegate_type_t type)
{
adj_delegate_t *aed;
u32 index = ~0;
aed = adj_delegate_find_i(adj, type, &index);
ASSERT(NULL != aed);
vec_del1(adj->ia_delegates, index);
}
static int
adj_delegate_cmp_for_sort (void * v1,
void * v2)
{
adj_delegate_t *delegate1 = v1, *delegate2 = v2;
return (delegate1->ad_type - delegate2->ad_type);
}
static void
adj_delegate_init (ip_adjacency_t *adj,
adj_delegate_type_t type)
{
adj_delegate_t delegate = {
.ad_adj_index = adj_get_index(adj),
.ad_type = type,
};
vec_add1(adj->ia_delegates, delegate);
vec_sort_with_function(adj->ia_delegates,
adj_delegate_cmp_for_sort);
}
adj_delegate_t *
adj_delegate_find_or_add (ip_adjacency_t *adj,
adj_delegate_type_t adt)
{
adj_delegate_t *delegate;
delegate = adj_delegate_get(adj, adt);
if (NULL == delegate)
{
adj_delegate_init(adj, adt);
}
return (adj_delegate_get(adj, adt));
}
/**
* typedef for printing a delegate
*/
typedef u8 * (*adj_delegate_format_t)(const adj_delegate_t *aed,
u8 *s);
/**
* Print a delegate that represents BFD tracking
*/
static u8 *
adj_delegate_fmt_bfd (const adj_delegate_t *aed,
u8 *s)
{
s = format(s, "BFD:[state:%d index:%d]",
aed->ad_bfd_state,
aed->ad_bfd_index);
return (s);
}
/**
* A delegate type to formatter map
*/
static adj_delegate_format_t aed_formatters[] =
{
[ADJ_DELEGATE_BFD] = adj_delegate_fmt_bfd,
};
u8 *
format_adj_deletegate (u8 * s, va_list * args)
{
adj_delegate_t *aed;
aed = va_arg (*args, adj_delegate_t *);
return (aed_formatters[aed->ad_type](aed, s));
}
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