net/netfilter/nft_set_bitmap.c

24  * An element can be in three states. The generation cursor is represented using
95 	struct nft_bitmap_elem *be;
97 	list_for_each_entry_rcu(be, &priv->list, head) {
98 		if (memcmp(nft_set_ext_key(&be->ext),
100 		    !nft_set_elem_active(&be->ext, genmask))
103 		return be;
114 	struct nft_bitmap_elem *be;
116 	list_for_each_entry_rcu(be, &priv->list, head) {
117 		if (memcmp(nft_set_ext_key(&be->ext), elem->key.val.data, set->klen) ||
118 		    !nft_set_elem_active(&be->ext, genmask))
121 		return &be->priv;
130 	struct nft_bitmap_elem *new = nft_elem_priv_cast(elem->priv), *be;
135 	be = nft_bitmap_elem_find(set, new, genmask);
136 	if (be) {
137 		*elem_priv = &be->priv;
152 	struct nft_bitmap_elem *be = nft_elem_priv_cast(elem_priv);
157 	nft_bitmap_location(set, nft_set_ext_key(&be->ext), &idx, &off);
160 	list_del_rcu(&be->head);
167 	struct nft_bitmap_elem *be = nft_elem_priv_cast(elem_priv);
172 	nft_bitmap_location(set, nft_set_ext_key(&be->ext), &idx, &off);
175 	nft_clear(net, &be->ext);
182 	struct nft_bitmap_elem *be = nft_elem_priv_cast(elem_priv);
187 	nft_bitmap_location(set, nft_set_ext_key(&be->ext), &idx, &off);
190 	nft_set_elem_change_active(net, set, &be->ext);
197 	struct nft_bitmap_elem *this = nft_elem_priv_cast(elem->priv), *be;
204 	be = nft_bitmap_elem_find(set, this, genmask);
205 	if (!be)
210 	nft_set_elem_change_active(net, set, &be->ext);
212 	return &be->priv;
220 	struct nft_bitmap_elem *be;
222 	list_for_each_entry_rcu(be, &priv->list, head) {
226 		iter->err = iter->fn(ctx, set, iter, &be->priv);
275 	struct nft_bitmap_elem *be, *n;
277 	list_for_each_entry_safe(be, n, &priv->list, head)
278 		nf_tables_set_elem_destroy(ctx, set, &be->priv);