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Diffstat (limited to 'src/vnet/ip/ip_interface.h')
| -rw-r--r-- | src/vnet/ip/ip_interface.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/vnet/ip/ip_interface.h b/src/vnet/ip/ip_interface.h new file mode 100644 index 00000000000..f95b8deb07b --- /dev/null +++ b/src/vnet/ip/ip_interface.h @@ -0,0 +1,98 @@ +/* + * 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); +void ip_interface_address_del (ip_lookup_main_t * lm, + u32 addr_index, void *address); +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); + +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; +} + +/* *INDENT-OFF* */ +#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) +/* *INDENT-ON* */ + +#endif /* included_ip_interface_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |