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authorEric W. Biederman <ebiederm@xmission.com>2012-05-25 15:42:45 -0400
committerEric W. Biederman <ebiederm@xmission.com>2012-08-15 00:55:28 -0400
commitaf4c6641f5ad445fe6d0832da42406dbd9a37ce4 (patch)
treed1ef8c8fafb5cde0f55b7efd174c3d2032a58180 /net/sched/cls_cgroup.c
parent9eea9515cb5f3a4416511ef54b1cc98ca04869a1 (diff)
net sched: Pass the skb into change so it can access NETLINK_CB
cls_flow.c plays with uids and gids. Unless I misread that code it is possible for classifiers to depend on the specific uid and gid values. Therefore I need to know the user namespace of the netlink socket that is installing the packet classifiers. Pass in the rtnetlink skb so I can access the NETLINK_CB of the passed packet. In particular I want access to sk_user_ns(NETLINK_CB(in_skb).ssk). Pass in not the user namespace but the incomming rtnetlink skb into the the classifier change routines as that is generally the more useful parameter. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'net/sched/cls_cgroup.c')
-rw-r--r--net/sched/cls_cgroup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 7743ea8d1d38..91de66695b4a 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -151,7 +151,8 @@ static const struct nla_policy cgroup_policy[TCA_CGROUP_MAX + 1] = {
151 [TCA_CGROUP_EMATCHES] = { .type = NLA_NESTED }, 151 [TCA_CGROUP_EMATCHES] = { .type = NLA_NESTED },
152}; 152};
153 153
154static int cls_cgroup_change(struct tcf_proto *tp, unsigned long base, 154static int cls_cgroup_change(struct sk_buff *in_skb,
155 struct tcf_proto *tp, unsigned long base,
155 u32 handle, struct nlattr **tca, 156 u32 handle, struct nlattr **tca,
156 unsigned long *arg) 157 unsigned long *arg)
157{ 158{