pkt_sched: namespace aware act_mirred
Eric Dumazet pointed out that act_mirred needs to find the current net_ns,
and struct net pointer is not provided in the call chain. His original
patch made use of current->nsproxy->net_ns to find the network namespace,
but this fails to work correctly for userspace code that makes use of
netlink sockets in different network namespaces. Instead, pass the
"struct net *" down along the call chain to where it is needed.
This version removes the ifb changes as Eric has submitted that patch
separately, but is otherwise identical to the previous version.
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Tested-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index 4075a0ae..1135d82 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -192,7 +192,7 @@
};
static int
-fw_change_attrs(struct tcf_proto *tp, struct fw_filter *f,
+fw_change_attrs(struct net *net, struct tcf_proto *tp, struct fw_filter *f,
struct nlattr **tb, struct nlattr **tca, unsigned long base)
{
struct fw_head *head = (struct fw_head *)tp->root;
@@ -200,7 +200,7 @@
u32 mask;
int err;
- err = tcf_exts_validate(tp, tb, tca[TCA_RATE], &e, &fw_ext_map);
+ err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &e, &fw_ext_map);
if (err < 0)
return err;
@@ -233,7 +233,7 @@
return err;
}
-static int fw_change(struct sk_buff *in_skb,
+static int fw_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle,
struct nlattr **tca,
@@ -255,7 +255,7 @@
if (f != NULL) {
if (f->id != handle && handle)
return -EINVAL;
- return fw_change_attrs(tp, f, tb, tca, base);
+ return fw_change_attrs(net, tp, f, tb, tca, base);
}
if (!handle)
@@ -282,7 +282,7 @@
f->id = handle;
- err = fw_change_attrs(tp, f, tb, tca, base);
+ err = fw_change_attrs(net, tp, f, tb, tca, base);
if (err < 0)
goto errout;