static bool nft_bitmap_lookup(const struct net *net, const struct nft_set *set,
const u32 *key, const struct nft_set_ext **ext)
{
const struct nft_bitmap *priv = nft_set_priv(set);
u8 genmask = nft_genmask_cur(net);
u32 idx, off;
nft_bitmap_location(set, key, &idx, &off);
return nft_bitmap_active(priv->bitmap, idx, off, genmask);
}
static bool nft_hash_lookup(const struct net *net, const struct nft_set *set,
const u32 *key, const struct nft_set_ext **ext)
{
struct nft_hash *priv = nft_set_priv(set);
const struct nft_hash_elem *he;
struct nft_hash_cmp_arg arg = {
.genmask = nft_genmask_cur(net),
.set = set,
.key = key,
};
he = rhashtable_lookup_fast(&priv->ht, &arg, nft_hash_params);
if (he != NULL)
*ext = &he->ext;
return !!he;
}
he = rhashtable_lookup_fast(&priv->ht, &arg, nft_hash_params);
if (he != NULL)
*ext = &he->ext;
return !!he;
}
static bool nft_hash_update(struct nft_set *set, const u32 *key,
void *(*new)(struct nft_set *,
const struct nft_expr *,
struct nft_regs *regs),
const struct nft_expr *expr,
struct nft_regs *regs,
const struct nft_set_ext **ext)
{
struct nft_hash *priv = nft_set_priv(set);
struct nft_hash_elem *he;
struct nft_hash_cmp_arg arg = {
.genmask = NFT_GENMASK_ANY,
.set = set,
.key = key,
};
he = rhashtable_lookup_fast(&priv->ht, &arg, nft_hash_params);
if (he != NULL)
goto out;
he = new(set, expr, regs);
if (he == NULL)
goto err1;
if (rhashtable_lookup_insert_key(&priv->ht, &arg, &he->node,
const u32 *key, const struct nft_set_ext **ext)
{
const struct nft_bitmap *priv = nft_set_priv(set);
u8 genmask = nft_genmask_cur(net);
u32 idx, off;
nft_bitmap_location(set, key, &idx, &off);
return nft_bitmap_active(priv->bitmap, idx, off, genmask);
}
static struct nft_bitmap_elem *
nft_bitmap_elem_find(const struct nft_set *set, struct nft_bitmap_elem *this,
u8 genmask)
{
const struct nft_bitmap *priv = nft_set_priv(set);
struct nft_bitmap_elem *be;
list_for_each_entry_rcu(be, &priv->list, head) {
if (memcmp(nft_set_ext_key(&be->ext),
nft_set_ext_key(&this->ext), set->klen) ||
!nft_set_elem_active(&be->ext, genmask))
continue;
return be;
}
return NULL;
}
static int nft_bitmap_insert(const struct net *net, const struct nft_set *set,
const struct nft_set_elem *elem,
