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authorPablo Neira Ayuso <pablo@netfilter.org>2016-11-28 00:05:48 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2016-12-07 12:57:20 +0100
commit2599e98934c5ad166ad184b3682e38aadcb63fb3 (patch)
tree16f3872328d51ca5863094a4da1bcaa5e2040ce6 /net
parent43da04a593d8b2626f1cf4b56efe9402f6b53652 (diff)
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netfilter: nf_tables: notify internal updates of stateful objects
Introduce nf_tables_obj_notify() to notify internal state changes in stateful objects. This is used by the quota object to report depletion in a follow up patch. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/nf_tables_api.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index bfc015af366a..9d2ed3f520ef 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -4282,38 +4282,45 @@ static int nf_tables_delobj(struct net *net, struct sock *nlsk,
return nft_delobj(&ctx, obj);
}
-static int nf_tables_obj_notify(const struct nft_ctx *ctx,
- struct nft_object *obj, int event)
+int nft_obj_notify(struct net *net, struct nft_table *table,
+ struct nft_object *obj, u32 portid, u32 seq, int event,
+ int family, int report, gfp_t gfp)
{
struct sk_buff *skb;
int err;
- if (!ctx->report &&
- !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
+ if (!report &&
+ !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
return 0;
err = -ENOBUFS;
- skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ skb = nlmsg_new(NLMSG_GOODSIZE, gfp);
if (skb == NULL)
goto err;
- err = nf_tables_fill_obj_info(skb, ctx->net, ctx->portid, ctx->seq,
- event, 0, ctx->afi->family, ctx->table,
- obj, false);
+ err = nf_tables_fill_obj_info(skb, net, portid, seq, event, 0, family,
+ table, obj, false);
if (err < 0) {
kfree_skb(skb);
goto err;
}
- err = nfnetlink_send(skb, ctx->net, ctx->portid, NFNLGRP_NFTABLES,
- ctx->report, GFP_KERNEL);
+ err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report, gfp);
err:
if (err < 0) {
- nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES,
- err);
+ nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err);
}
return err;
}
+EXPORT_SYMBOL_GPL(nft_obj_notify);
+
+static int nf_tables_obj_notify(const struct nft_ctx *ctx,
+ struct nft_object *obj, int event)
+{
+ return nft_obj_notify(ctx->net, ctx->table, obj, ctx->portid,
+ ctx->seq, event, ctx->afi->family, ctx->report,
+ GFP_KERNEL);
+}
static int nf_tables_fill_gen_info(struct sk_buff *skb, struct net *net,
u32 portid, u32 seq)