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/*
* Copyright (c) 2020 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.
*/
/**
* @file
* @brief IP prefix management on interfaces
*/
#ifndef included_ip_interface_h
#define included_ip_interface_h
#include <vnet/ip/lookup.h>
clib_error_t *ip_interface_address_add (ip_lookup_main_t * lm,
u32 sw_if_index,
void *address,
u32 address_length,
u32 * result_index);
clib_error_t *ip_interface_address_del (ip_lookup_main_t * lm,
vnet_main_t * vnm,
u32 addr_index, void *address,
u32 address_length, u32 sw_if_index);
void *ip_interface_get_first_ip (u32 sw_if_index, u8 is_ip4);
void ip_interface_address_mark (void);
void ip_interface_address_sweep (void);
u32 ip_interface_address_find (ip_lookup_main_t * lm,
void *addr_fib, u32 address_length);
u8 ip_interface_has_address (u32 sw_if_index, ip46_address_t * ip, u8 is_ip4);
walk_rc_t ip_interface_address_mark_one_interface (vnet_main_t *vnm,
vnet_sw_interface_t *si,
void *ctx);
always_inline void *
ip_interface_address_get_address (ip_lookup_main_t * lm,
ip_interface_address_t * a)
{
return mhash_key_to_mem (&lm->address_to_if_address_index, a->address_key);
}
always_inline ip_interface_prefix_t *
ip_get_interface_prefix (ip_lookup_main_t * lm, ip_interface_prefix_key_t * k)
{
uword *p = mhash_get (&lm->prefix_to_if_prefix_index, k);
return p ? pool_elt_at_index (lm->if_prefix_pool, p[0]) : 0;
}
#define foreach_ip_interface_address(lm,a,sw_if_index,loop,body) \
do { \
vnet_main_t *_vnm = vnet_get_main(); \
u32 _sw_if_index = sw_if_index; \
vnet_sw_interface_t *_swif; \
_swif = vnet_get_sw_interface (_vnm, _sw_if_index); \
\
/* \
* Loop => honor unnumbered interface addressing. \
*/ \
if (_swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) \
{ \
if (loop) \
_sw_if_index = _swif->unnumbered_sw_if_index; \
else \
/* the interface is unnumbered, by the caller does not want \
* unnumbered interfaces considered/honoured */ \
break; \
} \
u32 _ia = ((vec_len((lm)->if_address_pool_index_by_sw_if_index) \
> (_sw_if_index)) ? \
vec_elt ((lm)->if_address_pool_index_by_sw_if_index, \
(_sw_if_index)) : \
(u32)~0); \
ip_interface_address_t * _a; \
while (_ia != ~0) \
{ \
_a = pool_elt_at_index ((lm)->if_address_pool, _ia); \
_ia = _a->next_this_sw_interface; \
(a) = _a; \
body; \
} \
} while (0)
#endif /* included_ip_interface_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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