blob: 6445184b2759a783f05a48578af330e0872f5d11 [file] [log] [blame]
Jamal Hadi Salim084e2f62016-02-27 08:08:55 -05001/*
2 * net/sched/act_meta_mark.c IFE skb->mark metadata module
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * copyright Jamal Hadi Salim (2015)
10 *
11*/
12
13#include <linux/types.h>
14#include <linux/kernel.h>
15#include <linux/string.h>
16#include <linux/errno.h>
17#include <linux/skbuff.h>
18#include <linux/rtnetlink.h>
19#include <linux/module.h>
20#include <linux/init.h>
21#include <net/netlink.h>
22#include <net/pkt_sched.h>
23#include <uapi/linux/tc_act/tc_ife.h>
24#include <net/tc_act/tc_ife.h>
Jamal Hadi Salim084e2f62016-02-27 08:08:55 -050025
26static int skbmark_encode(struct sk_buff *skb, void *skbdata,
27 struct tcf_meta_info *e)
28{
29 u32 ifemark = skb->mark;
30
31 return ife_encode_meta_u32(ifemark, skbdata, e);
32}
33
34static int skbmark_decode(struct sk_buff *skb, void *data, u16 len)
35{
36 u32 ifemark = *(u32 *)data;
37
38 skb->mark = ntohl(ifemark);
39 return 0;
40}
41
42static int skbmark_check(struct sk_buff *skb, struct tcf_meta_info *e)
43{
44 return ife_check_meta_u32(skb->mark, e);
45}
46
47static struct tcf_meta_ops ife_skbmark_ops = {
48 .metaid = IFE_META_SKBMARK,
49 .metatype = NLA_U32,
50 .name = "skbmark",
51 .synopsis = "skb mark 32 bit metadata",
52 .check_presence = skbmark_check,
53 .encode = skbmark_encode,
54 .decode = skbmark_decode,
55 .get = ife_get_meta_u32,
56 .alloc = ife_alloc_meta_u32,
57 .release = ife_release_meta_gen,
58 .validate = ife_validate_meta_u32,
59 .owner = THIS_MODULE,
60};
61
62static int __init ifemark_init_module(void)
63{
64 return register_ife_op(&ife_skbmark_ops);
65}
66
67static void __exit ifemark_cleanup_module(void)
68{
69 unregister_ife_op(&ife_skbmark_ops);
70}
71
72module_init(ifemark_init_module);
73module_exit(ifemark_cleanup_module);
74
75MODULE_AUTHOR("Jamal Hadi Salim(2015)");
76MODULE_DESCRIPTION("Inter-FE skb mark metadata module");
77MODULE_LICENSE("GPL");
Roman Mashak8f047482017-10-11 10:50:29 -040078MODULE_ALIAS_IFE_META("skbmark");