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https://gitlab.nic.cz/labs/bird.git
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3ab2dd3fd3
Use local variable to refence relevant instance instead of using global instance ptr. Also, use 'p' variable instead of 'bmp' so we can use common macros like TRACE().
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
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* BIRD -- The BGP Monitoring Protocol (BMP)
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*
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* (c) 2020 Akamai Technologies, Inc. (Pawel Maslanka, pmaslank@akamai.com)
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#include "proto/bmp/map.h"
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/* Peer Index Table */
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#define PEER_KEY(n) (n)->peer_as, (n)->peer_ip
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#define PEER_NEXT(n) (n)->next
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#define PEER_EQ(as1,ip1,as2,ip2) \
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(as1) == (as2) && ipa_equal(ip1, ip2)
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#define PEER_FN(as,ip) ipa_hash(ip)
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#define PEER_REHASH bmp_peer_rehash
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#define PEER_PARAMS /8, *2, 2, 2, 6, 20
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HASH_DEFINE_REHASH_FN(PEER, struct bmp_peer_map_key)
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#define PEER_INIT_ORDER 6
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void
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bmp_peer_map_init(struct bmp_peer_map *map, pool *mpool)
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{
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map->mpool = mpool;
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HASH_INIT(map->peer_hash, map->mpool, PEER_INIT_ORDER);
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}
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struct bmp_peer_map_key
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bmp_peer_map_key_create(const ip_addr peer_ip, const u32 peer_as)
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{
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struct bmp_peer_map_key key;
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key.next = NULL;
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key.peer_ip = peer_ip;
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key.peer_as = peer_as;
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return key;
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}
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void
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bmp_peer_map_flush(struct bmp_peer_map *map)
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{
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struct bmp_peer_map_entry *entry;
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HASH_WALK_DELSAFE(map->peer_hash, next, e)
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{
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entry = (struct bmp_peer_map_entry *) e;
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mb_free(entry->data.buf);
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HASH_DELETE(map->peer_hash, PEER, PEER_KEY(&entry->key));
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mb_free(entry);
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}
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HASH_WALK_DELSAFE_END;
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HASH_MAY_RESIZE_DOWN(map->peer_hash, PEER, map->mpool);
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}
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void
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bmp_peer_map_free(struct bmp_peer_map *map)
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{
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bmp_peer_map_flush(map);
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HASH_FREE(map->peer_hash);
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}
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void
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bmp_peer_map_insert(struct bmp_peer_map *map, const struct bmp_peer_map_key key,
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const byte *data, const size_t data_size)
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{
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struct bmp_peer_map_entry *entry
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= (void *) HASH_FIND(map->peer_hash, PEER, PEER_KEY(&key));
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if (entry)
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{
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mb_free(entry->data.buf);
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entry->data.buf = mb_alloc(map->mpool, data_size);
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memcpy(entry->data.buf, data, data_size);
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entry->data.buf_size = data_size;
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return;
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}
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entry = mb_alloc(map->mpool, sizeof (struct bmp_peer_map_entry));
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entry->data.buf = mb_alloc(map->mpool, data_size);
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memcpy(entry->data.buf, data, data_size);
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entry->data.buf_size = data_size;
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entry->key = key;
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HASH_INSERT2(map->peer_hash, PEER, map->mpool, &entry->key);
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}
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void
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bmp_peer_map_remove(struct bmp_peer_map *map, const struct bmp_peer_map_key key)
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{
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struct bmp_peer_map_entry *entry
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= (void *) HASH_DELETE(map->peer_hash, PEER, PEER_KEY(&key));
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if (!entry)
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return;
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mb_free(entry->data.buf);
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mb_free(entry);
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}
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const struct bmp_peer_map_entry *
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bmp_peer_map_get(struct bmp_peer_map *map, const struct bmp_peer_map_key key)
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{
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return (struct bmp_peer_map_entry *) HASH_FIND(map->peer_hash, PEER, PEER_KEY(&key));
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}
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void
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bmp_peer_map_walk(const struct bmp_peer_map *map, bmp_peer_map_walk_action action, void *arg)
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{
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struct bmp_peer_map_entry *entry;
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HASH_WALK_FILTER(map->peer_hash, next, e, _)
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{
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entry = (struct bmp_peer_map_entry *) e;
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action(entry->key, entry->data.buf, entry->data.buf_size, arg);
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}
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HASH_WALK_FILTER_END;
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}
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