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authorPablo Neira Ayuso2014-04-03 11:56:37 +0200
committerPablo Neira Ayuso2014-05-19 12:06:10 +0200
commit37082f930bb59ef6fd45e7bae6c45858af2cd972 (patch)
tree0831f6b8a80341c55a6fdd332c2eef91cfade265 /net/netfilter/nf_tables_api.c
parentnetfilter: nf_tables: generalise transaction infrastructure (diff)
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netfilter: nf_tables: relocate commit and abort routines in the source file
Move the commit and abort routines to the bottom of the source code file. This change is required by the follow up patches that add the set, chain and table transaction support. This patch is just a cleanup to access several functions without having to declare their prototypes. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_tables_api.c')
-rw-r--r--net/netfilter/nf_tables_api.c160
1 files changed, 80 insertions, 80 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 424a6f3cb6c5..17df4b807f84 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1827,86 +1827,6 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
return err;
}
-static int nf_tables_commit(struct sk_buff *skb)
-{
- struct net *net = sock_net(skb->sk);
- struct nft_trans *trans, *next;
-
- /* Bump generation counter, invalidate any dump in progress */
- net->nft.genctr++;
-
- /* A new generation has just started */
- net->nft.gencursor = gencursor_next(net);
-
- /* Make sure all packets have left the previous generation before
- * purging old rules.
- */
- synchronize_rcu();
-
- list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
- /* This rule was inactive in the past and just became active.
- * Clear the next bit of the genmask since its meaning has
- * changed, now it is the future.
- */
- if (nft_rule_is_active(net, nft_trans_rule(trans))) {
- nft_rule_clear(net, nft_trans_rule(trans));
- nf_tables_rule_notify(skb, trans->ctx.nlh,
- trans->ctx.table,
- trans->ctx.chain,
- nft_trans_rule(trans),
- NFT_MSG_NEWRULE, 0,
- trans->ctx.afi->family);
- nft_trans_destroy(trans);
- continue;
- }
-
- /* This rule is in the past, get rid of it */
- list_del_rcu(&nft_trans_rule(trans)->list);
- nf_tables_rule_notify(skb, trans->ctx.nlh,
- trans->ctx.table, trans->ctx.chain,
- nft_trans_rule(trans), NFT_MSG_DELRULE,
- 0, trans->ctx.afi->family);
- }
-
- /* Make sure we don't see any packet traversing old rules */
- synchronize_rcu();
-
- /* Now we can safely release unused old rules */
- list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
- nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
- nft_trans_destroy(trans);
- }
-
- return 0;
-}
-
-static int nf_tables_abort(struct sk_buff *skb)
-{
- struct net *net = sock_net(skb->sk);
- struct nft_trans *trans, *next;
-
- list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
- if (!nft_rule_is_active_next(net, nft_trans_rule(trans))) {
- nft_rule_clear(net, nft_trans_rule(trans));
- nft_trans_destroy(trans);
- continue;
- }
-
- /* This rule is inactive, get rid of it */
- list_del_rcu(&nft_trans_rule(trans)->list);
- }
-
- /* Make sure we don't see any packet accessing aborted rules */
- synchronize_rcu();
-
- list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
- nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
- nft_trans_destroy(trans);
- }
-
- return 0;
-}
-
/*
* Sets
*/
@@ -3177,6 +3097,86 @@ static const struct nfnl_callback nf_tables_cb[NFT_MSG_MAX] = {
},
};
+static int nf_tables_commit(struct sk_buff *skb)
+{
+ struct net *net = sock_net(skb->sk);
+ struct nft_trans *trans, *next;
+
+ /* Bump generation counter, invalidate any dump in progress */
+ net->nft.genctr++;
+
+ /* A new generation has just started */
+ net->nft.gencursor = gencursor_next(net);
+
+ /* Make sure all packets have left the previous generation before
+ * purging old rules.
+ */
+ synchronize_rcu();
+
+ list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
+ /* This rule was inactive in the past and just became active.
+ * Clear the next bit of the genmask since its meaning has
+ * changed, now it is the future.
+ */
+ if (nft_rule_is_active(net, nft_trans_rule(trans))) {
+ nft_rule_clear(net, nft_trans_rule(trans));
+ nf_tables_rule_notify(skb, trans->ctx.nlh,
+ trans->ctx.table,
+ trans->ctx.chain,
+ nft_trans_rule(trans),
+ NFT_MSG_NEWRULE, 0,
+ trans->ctx.afi->family);
+ nft_trans_destroy(trans);
+ continue;
+ }
+
+ /* This rule is in the past, get rid of it */
+ list_del_rcu(&nft_trans_rule(trans)->list);
+ nf_tables_rule_notify(skb, trans->ctx.nlh,
+ trans->ctx.table, trans->ctx.chain,
+ nft_trans_rule(trans), NFT_MSG_DELRULE,
+ 0, trans->ctx.afi->family);
+ }
+
+ /* Make sure we don't see any packet traversing old rules */
+ synchronize_rcu();
+
+ /* Now we can safely release unused old rules */
+ list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
+ nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
+ nft_trans_destroy(trans);
+ }
+
+ return 0;
+}
+
+static int nf_tables_abort(struct sk_buff *skb)
+{
+ struct net *net = sock_net(skb->sk);
+ struct nft_trans *trans, *next;
+
+ list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
+ if (!nft_rule_is_active_next(net, nft_trans_rule(trans))) {
+ nft_rule_clear(net, nft_trans_rule(trans));
+ nft_trans_destroy(trans);
+ continue;
+ }
+
+ /* This rule is inactive, get rid of it */
+ list_del_rcu(&nft_trans_rule(trans)->list);
+ }
+
+ /* Make sure we don't see any packet accessing aborted rules */
+ synchronize_rcu();
+
+ list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
+ nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
+ nft_trans_destroy(trans);
+ }
+
+ return 0;
+}
+
static const struct nfnetlink_subsystem nf_tables_subsys = {
.name = "nf_tables",
.subsys_id = NFNL_SUBSYS_NFTABLES,