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73 lines
1.8 KiB
73 lines
1.8 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* net/sched/act_meta_tc_index.c IFE skb->tc_index metadata module |
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* |
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* copyright Jamal Hadi Salim (2016) |
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*/ |
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#include <linux/types.h> |
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#include <linux/kernel.h> |
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#include <linux/string.h> |
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#include <linux/errno.h> |
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#include <linux/skbuff.h> |
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#include <linux/rtnetlink.h> |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <net/netlink.h> |
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#include <net/pkt_sched.h> |
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#include <uapi/linux/tc_act/tc_ife.h> |
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#include <net/tc_act/tc_ife.h> |
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static int skbtcindex_encode(struct sk_buff *skb, void *skbdata, |
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struct tcf_meta_info *e) |
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{ |
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u32 ifetc_index = skb->tc_index; |
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return ife_encode_meta_u16(ifetc_index, skbdata, e); |
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} |
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static int skbtcindex_decode(struct sk_buff *skb, void *data, u16 len) |
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{ |
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u16 ifetc_index = *(u16 *)data; |
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skb->tc_index = ntohs(ifetc_index); |
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return 0; |
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} |
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static int skbtcindex_check(struct sk_buff *skb, struct tcf_meta_info *e) |
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{ |
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return ife_check_meta_u16(skb->tc_index, e); |
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} |
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static struct tcf_meta_ops ife_skbtcindex_ops = { |
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.metaid = IFE_META_TCINDEX, |
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.metatype = NLA_U16, |
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.name = "tc_index", |
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.synopsis = "skb tc_index 16 bit metadata", |
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.check_presence = skbtcindex_check, |
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.encode = skbtcindex_encode, |
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.decode = skbtcindex_decode, |
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.get = ife_get_meta_u16, |
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.alloc = ife_alloc_meta_u16, |
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.release = ife_release_meta_gen, |
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.validate = ife_validate_meta_u16, |
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.owner = THIS_MODULE, |
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}; |
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static int __init ifetc_index_init_module(void) |
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{ |
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return register_ife_op(&ife_skbtcindex_ops); |
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} |
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static void __exit ifetc_index_cleanup_module(void) |
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{ |
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unregister_ife_op(&ife_skbtcindex_ops); |
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} |
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module_init(ifetc_index_init_module); |
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module_exit(ifetc_index_cleanup_module); |
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MODULE_AUTHOR("Jamal Hadi Salim(2016)"); |
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MODULE_DESCRIPTION("Inter-FE skb tc_index metadata module"); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS_IFE_META("tcindex");
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