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https://github.com/brain-hackers/linux-brain.git
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net: sched: propagate q and parent from caller down to tcf_fill_node
The callers have this info, they will pass it down to tcf_fill_node. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
David S. Miller
parent
74e3be6021
commit
a10fa20101
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@ -420,8 +420,8 @@ static struct tcf_proto *tcf_chain_tp_find(struct tcf_chain *chain,
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}
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static int tcf_fill_node(struct net *net, struct sk_buff *skb,
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struct tcf_proto *tp, void *fh, u32 portid,
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u32 seq, u16 flags, int event)
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struct tcf_proto *tp, struct Qdisc *q, u32 parent,
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void *fh, u32 portid, u32 seq, u16 flags, int event)
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{
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struct tcmsg *tcm;
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struct nlmsghdr *nlh;
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@ -434,8 +434,8 @@ static int tcf_fill_node(struct net *net, struct sk_buff *skb,
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tcm->tcm_family = AF_UNSPEC;
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tcm->tcm__pad1 = 0;
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tcm->tcm__pad2 = 0;
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tcm->tcm_ifindex = qdisc_dev(tp->q)->ifindex;
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tcm->tcm_parent = tp->classid;
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tcm->tcm_ifindex = qdisc_dev(q)->ifindex;
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tcm->tcm_parent = parent;
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tcm->tcm_info = TC_H_MAKE(tp->prio, tp->protocol);
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if (nla_put_string(skb, TCA_KIND, tp->ops->kind))
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goto nla_put_failure;
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@ -458,6 +458,7 @@ static int tcf_fill_node(struct net *net, struct sk_buff *skb,
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static int tfilter_notify(struct net *net, struct sk_buff *oskb,
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struct nlmsghdr *n, struct tcf_proto *tp,
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struct Qdisc *q, u32 parent,
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void *fh, int event, bool unicast)
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{
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struct sk_buff *skb;
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@ -467,7 +468,7 @@ static int tfilter_notify(struct net *net, struct sk_buff *oskb,
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if (!skb)
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return -ENOBUFS;
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if (tcf_fill_node(net, skb, tp, fh, portid, n->nlmsg_seq,
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if (tcf_fill_node(net, skb, tp, q, parent, fh, portid, n->nlmsg_seq,
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n->nlmsg_flags, event) <= 0) {
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kfree_skb(skb);
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return -EINVAL;
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@ -482,6 +483,7 @@ static int tfilter_notify(struct net *net, struct sk_buff *oskb,
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static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
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struct nlmsghdr *n, struct tcf_proto *tp,
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struct Qdisc *q, u32 parent,
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void *fh, bool unicast, bool *last)
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{
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struct sk_buff *skb;
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@ -492,7 +494,7 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
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if (!skb)
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return -ENOBUFS;
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if (tcf_fill_node(net, skb, tp, fh, portid, n->nlmsg_seq,
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if (tcf_fill_node(net, skb, tp, q, parent, fh, portid, n->nlmsg_seq,
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n->nlmsg_flags, RTM_DELTFILTER) <= 0) {
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kfree_skb(skb);
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return -EINVAL;
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@ -512,6 +514,7 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
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}
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static void tfilter_notify_chain(struct net *net, struct sk_buff *oskb,
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struct Qdisc *q, u32 parent,
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struct nlmsghdr *n,
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struct tcf_chain *chain, int event)
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{
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@ -519,7 +522,7 @@ static void tfilter_notify_chain(struct net *net, struct sk_buff *oskb,
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for (tp = rtnl_dereference(chain->filter_chain);
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tp; tp = rtnl_dereference(tp->next))
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tfilter_notify(net, oskb, n, tp, 0, event, false);
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tfilter_notify(net, oskb, n, tp, q, parent, 0, event, false);
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}
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/* Add/change/delete/get a filter node */
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@ -638,7 +641,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
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}
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if (n->nlmsg_type == RTM_DELTFILTER && prio == 0) {
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tfilter_notify_chain(net, skb, n, chain, RTM_DELTFILTER);
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tfilter_notify_chain(net, skb, q, parent, n,
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chain, RTM_DELTFILTER);
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tcf_chain_flush(chain);
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err = 0;
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goto errout;
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@ -685,7 +689,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
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if (!fh) {
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if (n->nlmsg_type == RTM_DELTFILTER && t->tcm_handle == 0) {
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tcf_chain_tp_remove(chain, &chain_info, tp);
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tfilter_notify(net, skb, n, tp, fh,
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tfilter_notify(net, skb, n, tp, q, parent, fh,
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RTM_DELTFILTER, false);
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tcf_proto_destroy(tp);
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err = 0;
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@ -710,8 +714,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
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}
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break;
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case RTM_DELTFILTER:
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err = tfilter_del_notify(net, skb, n, tp, fh, false,
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&last);
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err = tfilter_del_notify(net, skb, n, tp, q, parent,
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fh, false, &last);
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if (err)
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goto errout;
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if (last) {
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@ -720,7 +724,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
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}
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goto errout;
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case RTM_GETTFILTER:
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err = tfilter_notify(net, skb, n, tp, fh,
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err = tfilter_notify(net, skb, n, tp, q, parent, fh,
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RTM_NEWTFILTER, true);
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goto errout;
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default:
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@ -734,7 +738,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
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if (err == 0) {
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if (tp_created)
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tcf_chain_tp_insert(chain, &chain_info, tp);
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tfilter_notify(net, skb, n, tp, fh, RTM_NEWTFILTER, false);
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tfilter_notify(net, skb, n, tp, q, parent, fh,
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RTM_NEWTFILTER, false);
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} else {
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if (tp_created)
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tcf_proto_destroy(tp);
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@ -753,6 +758,8 @@ struct tcf_dump_args {
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struct tcf_walker w;
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struct sk_buff *skb;
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struct netlink_callback *cb;
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struct Qdisc *q;
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u32 parent;
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};
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static int tcf_node_dump(struct tcf_proto *tp, void *n, struct tcf_walker *arg)
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@ -760,13 +767,14 @@ static int tcf_node_dump(struct tcf_proto *tp, void *n, struct tcf_walker *arg)
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struct tcf_dump_args *a = (void *)arg;
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struct net *net = sock_net(a->skb->sk);
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return tcf_fill_node(net, a->skb, tp, n, NETLINK_CB(a->cb->skb).portid,
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return tcf_fill_node(net, a->skb, tp, a->q, a->parent,
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n, NETLINK_CB(a->cb->skb).portid,
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a->cb->nlh->nlmsg_seq, NLM_F_MULTI,
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RTM_NEWTFILTER);
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}
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static bool tcf_chain_dump(struct tcf_chain *chain, struct sk_buff *skb,
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struct netlink_callback *cb,
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static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
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struct sk_buff *skb, struct netlink_callback *cb,
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long index_start, long *p_index)
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{
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struct net *net = sock_net(skb->sk);
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@ -788,7 +796,7 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct sk_buff *skb,
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memset(&cb->args[1], 0,
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sizeof(cb->args) - sizeof(cb->args[0]));
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if (cb->args[1] == 0) {
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if (tcf_fill_node(net, skb, tp, 0,
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if (tcf_fill_node(net, skb, tp, q, parent, 0,
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NETLINK_CB(cb->skb).portid,
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cb->nlh->nlmsg_seq, NLM_F_MULTI,
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RTM_NEWTFILTER) <= 0)
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@ -801,6 +809,8 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct sk_buff *skb,
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arg.w.fn = tcf_node_dump;
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arg.skb = skb;
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arg.cb = cb;
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arg.q = q;
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arg.parent = parent;
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arg.w.stop = 0;
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arg.w.skip = cb->args[1] - 1;
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arg.w.count = 0;
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@ -826,6 +836,7 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
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const struct Qdisc_class_ops *cops;
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long index_start;
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long index;
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u32 parent;
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int err;
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if (nlmsg_len(cb->nlh) < sizeof(*tcm))
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@ -839,10 +850,13 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
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if (!dev)
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return skb->len;
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if (!tcm->tcm_parent)
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parent = tcm->tcm_parent;
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if (!parent) {
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q = dev->qdisc;
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else
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parent = q->handle;
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} else {
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q = qdisc_lookup(dev, TC_H_MAJ(tcm->tcm_parent));
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}
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if (!q)
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goto out;
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cops = q->ops->cl_ops;
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@ -866,7 +880,8 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
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if (tca[TCA_CHAIN] &&
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nla_get_u32(tca[TCA_CHAIN]) != chain->index)
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continue;
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if (!tcf_chain_dump(chain, skb, cb, index_start, &index))
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if (!tcf_chain_dump(chain, q, parent, skb, cb,
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index_start, &index))
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break;
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}
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