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Collect prefixes in trie after aggregation and export new routes

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This commit is contained in:
Igor Putovny 2024-01-05 13:43:53 +01:00
parent 14d82bc053
commit ecfb73332a
1 changed files with 115 additions and 0 deletions
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115
proto/aggregator/aggregator.c
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@ -644,11 +644,124 @@ print_prefixes(const struct trie_node *node, int type)
}
}
static void
create_route_ip4(struct aggregator_proto *proto, const struct net_addr_ip4 *addr, struct aggregator_bucket *bucket)
{
struct {
struct network net;
union net_addr_union u;
} net_placeholder;
assert(addr->type == NET_IP4);
net_copy_ip4((struct net_addr_ip4 *)&net_placeholder.net.n.addr, addr);
bucket->rte->src = proto->p.main_source;
aggregator_bucket_update(proto, bucket, &net_placeholder.net);
}
static void
create_route_ip6(struct aggregator_proto *proto, struct net_addr_ip6 *addr, struct aggregator_bucket *bucket)
{
struct {
struct network n;
union net_addr_union u;
} net_placeholder;
assert(addr->type == NET_IP6);
net_copy_ip6((struct net_addr_ip6 *)&net_placeholder.n.n.addr, addr);
bucket->rte->src = proto->p.main_source;
aggregator_bucket_update(proto, bucket, &net_placeholder.n);
}
static void
collect_prefixes_helper_ip4(const struct trie_node *node, struct net_addr_ip4 *addr, struct aggregator_proto *proto, int depth, int *count)
{
assert(node != NULL);
if (is_leaf(node))
{
assert(node->bucket != NULL);
create_route_ip4(proto, addr, node->bucket);
*count += 1;
return;
}
if (node->bucket != NULL)
{
create_route_ip4(proto, addr, node->bucket);
*count += 1;
}
if (node->child[0])
{
ip4_clrbit(&addr->prefix, depth);
addr->pxlen = depth + 1;
collect_prefixes_helper_ip4(node->child[0], addr, proto, depth + 1, count);
}
if (node->child[1])
{
ip4_setbit(&addr->prefix, depth);
addr->pxlen = depth + 1;
collect_prefixes_helper_ip4(node->child[1], addr, proto, depth + 1, count);
}
}
static void
collect_prefixes_helper_ip6(const struct trie_node *node, struct net_addr_ip6 *addr, struct aggregator_proto *proto, int depth, int *count)
{
assert(node != NULL);
if (is_leaf(node))
{
assert(node->bucket != NULL);
create_route_ip6(proto, addr, node->bucket);
*count += 1;
return;
}
if (node->bucket != NULL)
{
create_route_ip6(proto, addr, node->bucket);
*count += 1;
}
if (node->child[0])
{
ip6_clrbit(&addr->prefix, depth);
addr->pxlen = depth + 1;
collect_prefixes_helper_ip6(node->child[0], addr, proto, depth + 1, count);
}
if (node->child[1])
{
ip6_setbit(&addr->prefix, depth);
addr->pxlen = depth + 1;
collect_prefixes_helper_ip6(node->child[1], addr, proto, depth + 1, count);
}
}
static void
collect_prefixes(struct aggregator_proto *proto)
{
int count = 0;
int type = NET_IP4;
if (type == NET_IP4)
{
struct net_addr_ip4 *addr = allocz(sizeof(struct net_addr_ip4));
addr->type = NET_IP4;
addr->length = sizeof(struct net_addr_ip4);
collect_prefixes_helper_ip4(proto->root, addr, proto, 0, &count);
}
else if (type == NET_IP6)
{
struct net_addr_ip6 *addr = allocz(sizeof(struct net_addr_ip6));
addr->type = NET_IP6;
addr->length = sizeof(struct net_addr_ip6);
collect_prefixes_helper_ip6(proto->root, addr, proto, 0, &count);
}
log("%d prefixes collected", count);
}
/*
@ -673,6 +786,8 @@ calculate_trie(void *p)
third_pass(proto->root);
log("====THIRD PASS====");
print_prefixes(proto->root, NET_IP4);
collect_prefixes(proto);
}
/*