static spinlock_t nf_connlabels_lock;
-int nf_connlabel_set(struct nf_conn *ct, u16 bit)
-{
- struct nf_conn_labels *labels = nf_ct_labels_find(ct);
-
- if (!labels || BIT_WORD(bit) >= labels->words)
- return -ENOSPC;
-
- if (test_bit(bit, labels->bits))
- return 0;
-
- if (!test_and_set_bit(bit, labels->bits))
- nf_conntrack_event_cache(IPCT_LABEL, ct);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(nf_connlabel_set);
-
static int replace_u32(u32 *address, u32 mask, u32 new)
{
u32 old, tmp;
if (!labels)
return -ENOSPC;
- size = labels->words * sizeof(long);
+ size = sizeof(labels->bits);
if (size < (words32 * sizeof(u32)))
words32 = size / sizeof(u32);
int nf_connlabels_get(struct net *net, unsigned int bits)
{
- size_t words;
-
- words = BIT_WORD(bits) + 1;
- if (words > NF_CT_LABELS_MAX_SIZE / sizeof(long))
+ if (BIT_WORD(bits) >= NF_CT_LABELS_MAX_SIZE / sizeof(long))
return -ERANGE;
spin_lock(&nf_connlabels_lock);
net->ct.labels_used++;
- if (words > net->ct.label_words)
- net->ct.label_words = words;
spin_unlock(&nf_connlabels_lock);
return 0;
{
spin_lock(&nf_connlabels_lock);
net->ct.labels_used--;
- if (net->ct.labels_used == 0)
- net->ct.label_words = 0;
spin_unlock(&nf_connlabels_lock);
}
EXPORT_SYMBOL_GPL(nf_connlabels_put);