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Message-Id: <20171013120105.23358-10-jiri@resnulli.us>
Date: Fri, 13 Oct 2017 14:01:05 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, jhs@...atatu.com, xiyou.wangcong@...il.com,
mlxsw@...lanox.com
Subject: [patch net-next 9/9] net: sched: propagate q and parent from caller down to tcf_fill_node
From: Jiri Pirko <jiri@...lanox.com>
The callers have this info, they will pass it down to tcf_fill_node.
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
net/sched/cls_api.c | 55 ++++++++++++++++++++++++++++++++++-------------------
1 file changed, 35 insertions(+), 20 deletions(-)
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 856003c..2e8e87f 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -420,8 +420,8 @@ static struct tcf_proto *tcf_chain_tp_find(struct tcf_chain *chain,
}
static int tcf_fill_node(struct net *net, struct sk_buff *skb,
- struct tcf_proto *tp, void *fh, u32 portid,
- u32 seq, u16 flags, int event)
+ struct tcf_proto *tp, struct Qdisc *q, u32 parent,
+ void *fh, u32 portid, u32 seq, u16 flags, int event)
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
@@ -434,8 +434,8 @@ static int tcf_fill_node(struct net *net, struct sk_buff *skb,
tcm->tcm_family = AF_UNSPEC;
tcm->tcm__pad1 = 0;
tcm->tcm__pad2 = 0;
- tcm->tcm_ifindex = qdisc_dev(tp->q)->ifindex;
- tcm->tcm_parent = tp->classid;
+ tcm->tcm_ifindex = qdisc_dev(q)->ifindex;
+ tcm->tcm_parent = parent;
tcm->tcm_info = TC_H_MAKE(tp->prio, tp->protocol);
if (nla_put_string(skb, TCA_KIND, tp->ops->kind))
goto nla_put_failure;
@@ -458,6 +458,7 @@ static int tcf_fill_node(struct net *net, struct sk_buff *skb,
static int tfilter_notify(struct net *net, struct sk_buff *oskb,
struct nlmsghdr *n, struct tcf_proto *tp,
+ struct Qdisc *q, u32 parent,
void *fh, int event, bool unicast)
{
struct sk_buff *skb;
@@ -467,7 +468,7 @@ static int tfilter_notify(struct net *net, struct sk_buff *oskb,
if (!skb)
return -ENOBUFS;
- if (tcf_fill_node(net, skb, tp, fh, portid, n->nlmsg_seq,
+ if (tcf_fill_node(net, skb, tp, q, parent, fh, portid, n->nlmsg_seq,
n->nlmsg_flags, event) <= 0) {
kfree_skb(skb);
return -EINVAL;
@@ -482,6 +483,7 @@ static int tfilter_notify(struct net *net, struct sk_buff *oskb,
static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
struct nlmsghdr *n, struct tcf_proto *tp,
+ struct Qdisc *q, u32 parent,
void *fh, bool unicast, bool *last)
{
struct sk_buff *skb;
@@ -492,7 +494,7 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
if (!skb)
return -ENOBUFS;
- if (tcf_fill_node(net, skb, tp, fh, portid, n->nlmsg_seq,
+ if (tcf_fill_node(net, skb, tp, q, parent, fh, portid, n->nlmsg_seq,
n->nlmsg_flags, RTM_DELTFILTER) <= 0) {
kfree_skb(skb);
return -EINVAL;
@@ -512,6 +514,7 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
}
static void tfilter_notify_chain(struct net *net, struct sk_buff *oskb,
+ struct Qdisc *q, u32 parent,
struct nlmsghdr *n,
struct tcf_chain *chain, int event)
{
@@ -519,7 +522,7 @@ static void tfilter_notify_chain(struct net *net, struct sk_buff *oskb,
for (tp = rtnl_dereference(chain->filter_chain);
tp; tp = rtnl_dereference(tp->next))
- tfilter_notify(net, oskb, n, tp, 0, event, false);
+ tfilter_notify(net, oskb, n, tp, q, parent, 0, event, false);
}
/* Add/change/delete/get a filter node */
@@ -638,7 +641,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
}
if (n->nlmsg_type == RTM_DELTFILTER && prio == 0) {
- tfilter_notify_chain(net, skb, n, chain, RTM_DELTFILTER);
+ tfilter_notify_chain(net, skb, q, parent, n,
+ chain, RTM_DELTFILTER);
tcf_chain_flush(chain);
err = 0;
goto errout;
@@ -685,7 +689,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
if (!fh) {
if (n->nlmsg_type == RTM_DELTFILTER && t->tcm_handle == 0) {
tcf_chain_tp_remove(chain, &chain_info, tp);
- tfilter_notify(net, skb, n, tp, fh,
+ tfilter_notify(net, skb, n, tp, q, parent, fh,
RTM_DELTFILTER, false);
tcf_proto_destroy(tp);
err = 0;
@@ -710,8 +714,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
}
break;
case RTM_DELTFILTER:
- err = tfilter_del_notify(net, skb, n, tp, fh, false,
- &last);
+ err = tfilter_del_notify(net, skb, n, tp, q, parent,
+ fh, false, &last);
if (err)
goto errout;
if (last) {
@@ -720,7 +724,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
}
goto errout;
case RTM_GETTFILTER:
- err = tfilter_notify(net, skb, n, tp, fh,
+ err = tfilter_notify(net, skb, n, tp, q, parent, fh,
RTM_NEWTFILTER, true);
goto errout;
default:
@@ -734,7 +738,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
if (err == 0) {
if (tp_created)
tcf_chain_tp_insert(chain, &chain_info, tp);
- tfilter_notify(net, skb, n, tp, fh, RTM_NEWTFILTER, false);
+ tfilter_notify(net, skb, n, tp, q, parent, fh,
+ RTM_NEWTFILTER, false);
} else {
if (tp_created)
tcf_proto_destroy(tp);
@@ -753,6 +758,8 @@ struct tcf_dump_args {
struct tcf_walker w;
struct sk_buff *skb;
struct netlink_callback *cb;
+ struct Qdisc *q;
+ u32 parent;
};
static int tcf_node_dump(struct tcf_proto *tp, void *n, struct tcf_walker *arg)
@@ -760,13 +767,14 @@ static int tcf_node_dump(struct tcf_proto *tp, void *n, struct tcf_walker *arg)
struct tcf_dump_args *a = (void *)arg;
struct net *net = sock_net(a->skb->sk);
- return tcf_fill_node(net, a->skb, tp, n, NETLINK_CB(a->cb->skb).portid,
+ return tcf_fill_node(net, a->skb, tp, a->q, a->parent,
+ n, NETLINK_CB(a->cb->skb).portid,
a->cb->nlh->nlmsg_seq, NLM_F_MULTI,
RTM_NEWTFILTER);
}
-static bool tcf_chain_dump(struct tcf_chain *chain, struct sk_buff *skb,
- struct netlink_callback *cb,
+static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
+ struct sk_buff *skb, struct netlink_callback *cb,
long index_start, long *p_index)
{
struct net *net = sock_net(skb->sk);
@@ -788,7 +796,7 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct sk_buff *skb,
memset(&cb->args[1], 0,
sizeof(cb->args) - sizeof(cb->args[0]));
if (cb->args[1] == 0) {
- if (tcf_fill_node(net, skb, tp, 0,
+ if (tcf_fill_node(net, skb, tp, q, parent, 0,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
RTM_NEWTFILTER) <= 0)
@@ -801,6 +809,8 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct sk_buff *skb,
arg.w.fn = tcf_node_dump;
arg.skb = skb;
arg.cb = cb;
+ arg.q = q;
+ arg.parent = parent;
arg.w.stop = 0;
arg.w.skip = cb->args[1] - 1;
arg.w.count = 0;
@@ -826,6 +836,7 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
const struct Qdisc_class_ops *cops;
long index_start;
long index;
+ u32 parent;
int err;
if (nlmsg_len(cb->nlh) < sizeof(*tcm))
@@ -839,10 +850,13 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
if (!dev)
return skb->len;
- if (!tcm->tcm_parent)
+ parent = tcm->tcm_parent;
+ if (!parent) {
q = dev->qdisc;
- else
+ parent = q->handle;
+ } else {
q = qdisc_lookup(dev, TC_H_MAJ(tcm->tcm_parent));
+ }
if (!q)
goto out;
cops = q->ops->cl_ops;
@@ -866,7 +880,8 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
if (tca[TCA_CHAIN] &&
nla_get_u32(tca[TCA_CHAIN]) != chain->index)
continue;
- if (!tcf_chain_dump(chain, skb, cb, index_start, &index))
+ if (!tcf_chain_dump(chain, q, parent, skb, cb,
+ index_start, &index))
break;
}
--
2.9.5
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