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/* SPDX-License-Identifier: GPL-3.0-or-later */
#include "categories.h"
#include <libknot/libknot.h>
#include "lib/utils.h"
static bool rrtype_is_infrastructure(uint16_t r)
{
switch (r) {
case KNOT_RRTYPE_NS:
case KNOT_RRTYPE_DS:
case KNOT_RRTYPE_DNSKEY:
case KNOT_RRTYPE_A:
case KNOT_RRTYPE_AAAA:
return true;
default:
return false;
}
}
static unsigned int get_random(int to)
{
// We don't need these to be really unpredictable,
// but this should be cheap enough not to be noticeable.
return kr_rand_bytes(1) % to;
}
// TODO this is just an example, make this more clever
category_t kr_gc_categorize(gc_record_info_t * info)
{
category_t res;
if (!info->valid)
return CATEGORIES - 1;
switch (info->no_labels) {
case 0: /* root zone */
res = 5;
break;
case 1: /* TLD */
res = 10;
break;
default: /* SLD and below */
res = (rrtype_is_infrastructure(info->rrtype) ? 15 : 20);
if (info->entry_size > 300)
/* Penalty for big answers */
res += 30;
break;
}
if (info->expires_in <= 0) {
res += 40;
}
return res + get_random(5);
}
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