Release 4.18 net/sched/sch_ingress.c

/* net/sched/sch_ingress.c - Ingress and clsact qdisc
 *
 *              This program is free software; you can redistribute it and/or
 *              modify it under the terms of the GNU General Public License
 *              as published by the Free Software Foundation; either version
 *              2 of the License, or (at your option) any later version.
 *
 * Authors:     Jamal Hadi Salim 1999
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>

#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <net/pkt_cls.h>


struct ingress_sched_data {
	
struct tcf_block *block;
	
struct tcf_block_ext_info block_info;
	
struct mini_Qdisc_pair miniqp;
};



static struct Qdisc *ingress_leaf(struct Qdisc *sch, unsigned long arg)
{
	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
20
100.00%
1
100.00%
Total
20
100.00%
1
100.00%



static unsigned long ingress_find(struct Qdisc *sch, u32 classid)
{
	return TC_H_MIN(classid) + 1;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
22
95.65%
1
50.00%
Américo Wang
1
4.35%
1
50.00%
Total
23
100.00%
2
100.00%



static unsigned long ingress_bind_filter(struct Qdisc *sch,
					 unsigned long parent, u32 classid)
{
	return ingress_find(sch, classid);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
26
96.30%
1
50.00%
Américo Wang
1
3.70%
1
50.00%
Total
27
100.00%
2
100.00%



static void ingress_unbind_filter(struct Qdisc *sch, unsigned long cl)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
13
92.86%
1
50.00%
Américo Wang
1
7.14%
1
50.00%
Total
14
100.00%
2
100.00%



static void ingress_walk(struct Qdisc *sch, struct qdisc_walker *walker)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
14
93.33%
1
50.00%
Joe Perches
1
6.67%
1
50.00%
Total
15
100.00%
2
100.00%



static struct tcf_block *ingress_tcf_block(struct Qdisc *sch, unsigned long cl,
					   struct netlink_ext_ack *extack)
{
	struct ingress_sched_data *q = qdisc_priv(sch);

	return q->block;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
25
67.57%
1
33.33%
Jiri Pirko
7
18.92%
1
33.33%
Alexander Aring
5
13.51%
1
33.33%
Total
37
100.00%
3
100.00%



static void clsact_chain_head_change(struct tcf_proto *tp_head, void *priv)
{
	struct mini_Qdisc_pair *miniqp = priv;

	mini_qdisc_pair_swap(miniqp, tp_head);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
29
100.00%
2
100.00%
Total
29
100.00%
2
100.00%

;



static void ingress_ingress_block_set(struct Qdisc *sch, u32 block_index)
{
	struct ingress_sched_data *q = qdisc_priv(sch);

	q->block_info.block_index = block_index;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
32
100.00%
1
100.00%
Total
32
100.00%
1
100.00%



static u32 ingress_ingress_block_get(struct Qdisc *sch)
{
	struct ingress_sched_data *q = qdisc_priv(sch);

	return q->block_info.block_index;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
28
100.00%
1
100.00%
Total
28
100.00%
1
100.00%



static int ingress_init(struct Qdisc *sch, struct nlattr *opt,
			struct netlink_ext_ack *extack)
{
	struct ingress_sched_data *q = qdisc_priv(sch);
	struct net_device *dev = qdisc_dev(sch);

	net_inc_ingress_queue();

	mini_qdisc_pair_init(&q->miniqp, sch, &dev->miniq_ingress);

	q->block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
	q->block_info.chain_head_change = clsact_chain_head_change;
	q->block_info.chain_head_change_priv = &q->miniqp;

	return tcf_block_get_ext(&q->block, sch, &q->block_info, extack);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
79
75.96%
6
60.00%
Daniel Borkmann
18
17.31%
2
20.00%
Alexander Aring
7
6.73%
2
20.00%
Total
104
100.00%
10
100.00%



static void ingress_destroy(struct Qdisc *sch)
{
	struct ingress_sched_data *q = qdisc_priv(sch);

	tcf_block_put_ext(q->block, sch, &q->block_info);
	net_dec_ingress_queue();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
21
55.26%
1
20.00%
Jiri Pirko
13
34.21%
2
40.00%
Daniel Borkmann
3
7.89%
1
20.00%
Patrick McHardy
1
2.63%
1
20.00%
Total
38
100.00%
5
100.00%



static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
{
	struct nlattr *nest;

	nest = nla_nest_start(skb, TCA_OPTIONS);
	if (nest == NULL)
		goto nla_put_failure;

	return nla_nest_end(skb, nest);

nla_put_failure:
	nla_nest_cancel(skb, nest);
	return -1;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
38
63.33%
1
20.00%
Patrick McHardy
19
31.67%
2
40.00%
Arnaldo Carvalho de Melo
2
3.33%
1
20.00%
Yang Yingliang
1
1.67%
1
20.00%
Total
60
100.00%
5
100.00%


static const struct Qdisc_class_ops ingress_class_ops = {
	.leaf		=	ingress_leaf,
	.find		=	ingress_find,
	.walk		=	ingress_walk,
	.tcf_block	=	ingress_tcf_block,
	.bind_tcf	=	ingress_bind_filter,
	.unbind_tcf	=	ingress_unbind_filter,
};


static struct Qdisc_ops ingress_qdisc_ops __read_mostly = {
	.cl_ops			=	&ingress_class_ops,
	.id			=	"ingress",
	.priv_size		=	sizeof(struct ingress_sched_data),
	.static_flags		=	TCQ_F_CPUSTATS,
	.init			=	ingress_init,
	.destroy		=	ingress_destroy,
	.dump			=	ingress_dump,
	.ingress_block_set	=	ingress_ingress_block_set,
	.ingress_block_get	=	ingress_ingress_block_get,
	.owner			=	THIS_MODULE,
};


struct clsact_sched_data {
	
struct tcf_block *ingress_block;
	
struct tcf_block *egress_block;
	
struct tcf_block_ext_info ingress_block_info;
	
struct tcf_block_ext_info egress_block_info;
	
struct mini_Qdisc_pair miniqp_ingress;
	
struct mini_Qdisc_pair miniqp_egress;
};



static unsigned long clsact_find(struct Qdisc *sch, u32 classid)
{
	switch (TC_H_MIN(classid)) {
	case TC_H_MIN(TC_H_MIN_INGRESS):
	case TC_H_MIN(TC_H_MIN_EGRESS):
		return TC_H_MIN(classid);
	default:
		return 0;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Daniel Borkmann
45
97.83%
1
50.00%
Américo Wang
1
2.17%
1
50.00%
Total
46
100.00%
2
100.00%



static unsigned long clsact_bind_filter(struct Qdisc *sch,
					unsigned long parent, u32 classid)
{
	return clsact_find(sch, classid);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Daniel Borkmann
26
96.30%
1
50.00%
Américo Wang
1
3.70%
1
50.00%
Total
27
100.00%
2
100.00%



static struct tcf_block *clsact_tcf_block(struct Qdisc *sch, unsigned long cl,
					  struct netlink_ext_ack *extack)
{
	struct clsact_sched_data *q = qdisc_priv(sch);

	switch (cl) {
	case TC_H_MIN(TC_H_MIN_INGRESS):
		return q->ingress_block;
	case TC_H_MIN(TC_H_MIN_EGRESS):
		return q->egress_block;
	default:
		return NULL;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Daniel Borkmann
50
78.12%
1
33.33%
Jiri Pirko
9
14.06%
1
33.33%
Alexander Aring
5
7.81%
1
33.33%
Total
64
100.00%
3
100.00%



static void clsact_ingress_block_set(struct Qdisc *sch, u32 block_index)
{
	struct clsact_sched_data *q = qdisc_priv(sch);

	q->ingress_block_info.block_index = block_index;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
32
100.00%
1
100.00%
Total
32
100.00%
1
100.00%



static void clsact_egress_block_set(struct Qdisc *sch, u32 block_index)
{
	struct clsact_sched_data *q = qdisc_priv(sch);

	q->egress_block_info.block_index = block_index;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
32
100.00%
1
100.00%
Total
32
100.00%
1
100.00%



static u32 clsact_ingress_block_get(struct Qdisc *sch)
{
	struct clsact_sched_data *q = qdisc_priv(sch);

	return q->ingress_block_info.block_index;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
28
100.00%
1
100.00%
Total
28
100.00%
1
100.00%



static u32 clsact_egress_block_get(struct Qdisc *sch)
{
	struct clsact_sched_data *q = qdisc_priv(sch);

	return q->egress_block_info.block_index;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
28
100.00%
1
100.00%
Total
28
100.00%
1
100.00%



static int clsact_init(struct Qdisc *sch, struct nlattr *opt,
		       struct netlink_ext_ack *extack)
{
	struct clsact_sched_data *q = qdisc_priv(sch);
	struct net_device *dev = qdisc_dev(sch);
	int err;

	net_inc_ingress_queue();
	net_inc_egress_queue();

	mini_qdisc_pair_init(&q->miniqp_ingress, sch, &dev->miniq_ingress);

	q->ingress_block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
	q->ingress_block_info.chain_head_change = clsact_chain_head_change;
	q->ingress_block_info.chain_head_change_priv = &q->miniqp_ingress;

	err = tcf_block_get_ext(&q->ingress_block, sch, &q->ingress_block_info,
				extack);
	if (err)
		return err;

	mini_qdisc_pair_init(&q->miniqp_egress, sch, &dev->miniq_egress);

	q->egress_block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS;
	q->egress_block_info.chain_head_change = clsact_chain_head_change;
	q->egress_block_info.chain_head_change_priv = &q->miniqp_egress;

	return tcf_block_get_ext(&q->egress_block, sch, &q->egress_block_info, extack);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
151
84.83%
6
60.00%
Daniel Borkmann
18
10.11%
2
20.00%
Alexander Aring
9
5.06%
2
20.00%
Total
178
100.00%
10
100.00%



static void clsact_destroy(struct Qdisc *sch)
{
	struct clsact_sched_data *q = qdisc_priv(sch);

	tcf_block_put_ext(q->egress_block, sch, &q->egress_block_info);
	tcf_block_put_ext(q->ingress_block, sch, &q->ingress_block_info);

	net_dec_ingress_queue();
	net_dec_egress_queue();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Daniel Borkmann
32
58.18%
1
33.33%
Jiri Pirko
23
41.82%
2
66.67%
Total
55
100.00%
3
100.00%


static const struct Qdisc_class_ops clsact_class_ops = {
	.leaf		=	ingress_leaf,
	.find		=	clsact_find,
	.walk		=	ingress_walk,
	.tcf_block	=	clsact_tcf_block,
	.bind_tcf	=	clsact_bind_filter,
	.unbind_tcf	=	ingress_unbind_filter,
};


static struct Qdisc_ops clsact_qdisc_ops __read_mostly = {
	.cl_ops			=	&clsact_class_ops,
	.id			=	"clsact",
	.priv_size		=	sizeof(struct clsact_sched_data),
	.static_flags		=	TCQ_F_CPUSTATS,
	.init			=	clsact_init,
	.destroy		=	clsact_destroy,
	.dump			=	ingress_dump,
	.ingress_block_set	=	clsact_ingress_block_set,
	.egress_block_set	=	clsact_egress_block_set,
	.ingress_block_get	=	clsact_ingress_block_get,
	.egress_block_get	=	clsact_egress_block_get,
	.owner			=	THIS_MODULE,
};



static int __init ingress_module_init(void)
{
	int ret;

	ret = register_qdisc(&ingress_qdisc_ops);
	if (!ret) {
		ret = register_qdisc(&clsact_qdisc_ops);
		if (ret)
			unregister_qdisc(&ingress_qdisc_ops);
	}

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Daniel Borkmann
33
68.75%
1
33.33%
Linus Torvalds (pre-git)
12
25.00%
1
33.33%
Al Viro
3
6.25%
1
33.33%
Total
48
100.00%
3
100.00%



static void __exit ingress_module_exit(void)
{
	unregister_qdisc(&ingress_qdisc_ops);
	unregister_qdisc(&clsact_qdisc_ops);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
10
47.62%
1
25.00%
Daniel Borkmann
6
28.57%
1
25.00%
Al Viro
3
14.29%
1
25.00%
Alexey Kuznetsov
2
9.52%
1
25.00%
Total
21
100.00%
4
100.00%

module_init(ingress_module_init);
module_exit(ingress_module_exit);

MODULE_ALIAS("sch_clsact");
MODULE_LICENSE("GPL");
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
596
46.09%
8
25.00%
Daniel Borkmann
328
25.37%
4
12.50%
Linus Torvalds (pre-git)
245
18.95%
1
3.12%
Dave Jones
30
2.32%
1
3.12%
Alexander Aring
26
2.01%
3
9.38%
Patrick McHardy
22
1.70%
4
12.50%
Al Viro
13
1.01%
1
3.12%
Américo Wang
11
0.85%
1
3.12%
Arnaldo Carvalho de Melo
5
0.39%
2
6.25%
Linus Torvalds
5
0.39%
1
3.12%
David S. Miller
5
0.39%
1
3.12%
Alexey Kuznetsov
2
0.15%
1
3.12%
Eric Dumazet
2
0.15%
1
3.12%
Geert Uytterhoeven
1
0.08%
1
3.12%
Yang Yingliang
1
0.08%
1
3.12%
Joe Perches
1
0.08%
1
3.12%
Total
1293
100.00%
32
100.00%
Directory: net/sched

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.