2 * Copyright (c) 2020 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 * @brief IP prefix management on interfaces
21 #ifndef included_ip_interface_h
22 #define included_ip_interface_h
24 #include <vnet/ip/lookup.h>
26 clib_error_t *ip_interface_address_add (ip_lookup_main_t * lm,
31 clib_error_t *ip_interface_address_del (ip_lookup_main_t * lm,
33 u32 addr_index, void *address,
34 u32 address_length, u32 sw_if_index);
35 void *ip_interface_get_first_ip (u32 sw_if_index, u8 is_ip4);
36 void ip_interface_address_mark (void);
37 void ip_interface_address_sweep (void);
38 u32 ip_interface_address_find (ip_lookup_main_t * lm,
39 void *addr_fib, u32 address_length);
40 u8 ip_interface_has_address (u32 sw_if_index, ip46_address_t * ip, u8 is_ip4);
43 ip_interface_address_get_address (ip_lookup_main_t * lm,
44 ip_interface_address_t * a)
46 return mhash_key_to_mem (&lm->address_to_if_address_index, a->address_key);
49 always_inline ip_interface_prefix_t *
50 ip_get_interface_prefix (ip_lookup_main_t * lm, ip_interface_prefix_key_t * k)
52 uword *p = mhash_get (&lm->prefix_to_if_prefix_index, k);
53 return p ? pool_elt_at_index (lm->if_prefix_pool, p[0]) : 0;
57 #define foreach_ip_interface_address(lm,a,sw_if_index,loop,body) \
59 vnet_main_t *_vnm = vnet_get_main(); \
60 u32 _sw_if_index = sw_if_index; \
61 vnet_sw_interface_t *_swif; \
62 _swif = vnet_get_sw_interface (_vnm, _sw_if_index); \
65 * Loop => honor unnumbered interface addressing. \
67 if (_swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) \
70 _sw_if_index = _swif->unnumbered_sw_if_index; \
72 /* the interface is unnumbered, by the caller does not want \
73 * unnumbered interfaces considered/honoured */ \
76 u32 _ia = ((vec_len((lm)->if_address_pool_index_by_sw_if_index) \
78 vec_elt ((lm)->if_address_pool_index_by_sw_if_index, \
81 ip_interface_address_t * _a; \
84 _a = pool_elt_at_index ((lm)->if_address_pool, _ia); \
85 _ia = _a->next_this_sw_interface; \
92 #endif /* included_ip_interface_h */
95 * fd.io coding-style-patch-verification: ON
98 * eval: (c-set-style "gnu")