projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 084e2f65 JHS |
1 | /* |
| 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> | |
| 25 | #include <linux/rtnetlink.h> | |
| 26 | ||
| 27 | static int skbmark_encode(struct sk_buff *skb, void *skbdata, | |
| 28 | struct tcf_meta_info *e) | |
| 29 | { | |
| 30 | u32 ifemark = skb->mark; | |
| 31 | ||
| 32 | return ife_encode_meta_u32(ifemark, skbdata, e); | |
| 33 | } | |
| 34 | ||
| 35 | static int skbmark_decode(struct sk_buff *skb, void *data, u16 len) | |
| 36 | { | |
| 37 | u32 ifemark = *(u32 *)data; | |
| 38 | ||
| 39 | skb->mark = ntohl(ifemark); | |
| 40 | return 0; | |
| 41 | } | |
| 42 | ||
| 43 | static int skbmark_check(struct sk_buff *skb, struct tcf_meta_info *e) | |
| 44 | { | |
| 45 | return ife_check_meta_u32(skb->mark, e); | |
| 46 | } | |
| 47 | ||
| 48 | static struct tcf_meta_ops ife_skbmark_ops = { | |
| 49 | .metaid = IFE_META_SKBMARK, | |
| 50 | .metatype = NLA_U32, | |
| 51 | .name = "skbmark", | |
| 52 | .synopsis = "skb mark 32 bit metadata", | |
| 53 | .check_presence = skbmark_check, | |
| 54 | .encode = skbmark_encode, | |
| 55 | .decode = skbmark_decode, | |
| 56 | .get = ife_get_meta_u32, | |
| 57 | .alloc = ife_alloc_meta_u32, | |
| 58 | .release = ife_release_meta_gen, | |
| 59 | .validate = ife_validate_meta_u32, | |
| 60 | .owner = THIS_MODULE, | |
| 61 | }; | |
| 62 | ||
| 63 | static int __init ifemark_init_module(void) | |
| 64 | { | |
| 65 | return register_ife_op(&ife_skbmark_ops); | |
| 66 | } | |
| 67 | ||
| 68 | static void __exit ifemark_cleanup_module(void) | |
| 69 | { | |
| 70 | unregister_ife_op(&ife_skbmark_ops); | |
| 71 | } | |
| 72 | ||
| 73 | module_init(ifemark_init_module); | |
| 74 | module_exit(ifemark_cleanup_module); | |
| 75 | ||
| 76 | MODULE_AUTHOR("Jamal Hadi Salim(2015)"); | |
| 77 | MODULE_DESCRIPTION("Inter-FE skb mark metadata module"); | |
| 78 | MODULE_LICENSE("GPL"); | |
| 79 | MODULE_ALIAS_IFE_META(IFE_META_SKBMARK); |