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Diffstat (limited to 'net/netfilter/nf_queue.c')
-rw-r--r--net/netfilter/nf_queue.c35
1 files changed, 25 insertions, 10 deletions
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 8f08d759844a..77cba9f6ccb6 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -108,7 +108,7 @@ void nf_queue_nf_hook_drop(struct net *net, const struct nf_hook_entry *entry)
}
static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
- unsigned int queuenum)
+ struct nf_hook_entry *hook_entry, unsigned int queuenum)
{
int status = -ENOENT;
struct nf_queue_entry *entry = NULL;
@@ -136,6 +136,7 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
*entry = (struct nf_queue_entry) {
.skb = skb,
.state = *state,
+ .hook = hook_entry,
.size = sizeof(*entry) + afinfo->route_key_size,
};
@@ -163,8 +164,7 @@ int nf_queue(struct sk_buff *skb, struct nf_hook_state *state,
struct nf_hook_entry *entry = *entryp;
int ret;
- RCU_INIT_POINTER(state->hook_entries, entry);
- ret = __nf_queue(skb, state, verdict >> NF_VERDICT_QBITS);
+ ret = __nf_queue(skb, state, entry, verdict >> NF_VERDICT_QBITS);
if (ret < 0) {
if (ret == -ESRCH &&
(verdict & NF_VERDICT_FLAG_QUEUE_BYPASS)) {
@@ -177,17 +177,34 @@ int nf_queue(struct sk_buff *skb, struct nf_hook_state *state,
return 0;
}
+static unsigned int nf_iterate(struct sk_buff *skb,
+ struct nf_hook_state *state,
+ struct nf_hook_entry **entryp)
+{
+ unsigned int verdict;
+
+ do {
+repeat:
+ verdict = (*entryp)->ops.hook((*entryp)->ops.priv, skb, state);
+ if (verdict != NF_ACCEPT) {
+ if (verdict != NF_REPEAT)
+ return verdict;
+ goto repeat;
+ }
+ *entryp = rcu_dereference((*entryp)->next);
+ } while (*entryp);
+
+ return NF_ACCEPT;
+}
+
void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
{
- struct nf_hook_entry *hook_entry;
+ struct nf_hook_entry *hook_entry = entry->hook;
+ struct nf_hook_ops *elem = &hook_entry->ops;
struct sk_buff *skb = entry->skb;
const struct nf_afinfo *afinfo;
- struct nf_hook_ops *elem;
int err;
- hook_entry = rcu_dereference(entry->state.hook_entries);
- elem = &hook_entry->ops;
-
nf_queue_entry_release_refs(entry);
/* Continue traversal iff userspace said ok... */
@@ -200,8 +217,6 @@ void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
verdict = NF_DROP;
}
- entry->state.thresh = INT_MIN;
-
if (verdict == NF_ACCEPT) {
hook_entry = rcu_dereference(hook_entry->next);
if (hook_entry)