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42f39036cd
So far the mirred action has dealt with syntax that handles mirror/redirection for netdev. A matching packet is redirected or mirrored to a target netdev. In this patch we enable mirred to mirror to a tc block as well. IOW, the new syntax looks as follows: ... mirred <ingress | egress> <mirror | redirect> [index INDEX] < <blockid BLOCKID> | <dev <devname>> > Examples of mirroring or redirecting to a tc block: $ tc filter add block 22 protocol ip pref 25 \ flower dst_ip 192.168.0.0/16 action mirred egress mirror blockid 22 $ tc filter add block 22 protocol ip pref 25 \ flower dst_ip 10.10.10.10/32 action mirred egress redirect blockid 22 Co-developed-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Co-developed-by: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Victor Nogueira <victor@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NET_TC_MIR_H
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#define __NET_TC_MIR_H
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#include <net/act_api.h>
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#include <linux/tc_act/tc_mirred.h>
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struct tcf_mirred {
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struct tc_action common;
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int tcfm_eaction;
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u32 tcfm_blockid;
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bool tcfm_mac_header_xmit;
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struct net_device __rcu *tcfm_dev;
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netdevice_tracker tcfm_dev_tracker;
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struct list_head tcfm_list;
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};
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#define to_mirred(a) ((struct tcf_mirred *)a)
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static inline bool is_tcf_mirred_egress_redirect(const struct tc_action *a)
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{
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#ifdef CONFIG_NET_CLS_ACT
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if (a->ops && a->ops->id == TCA_ID_MIRRED)
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return to_mirred(a)->tcfm_eaction == TCA_EGRESS_REDIR;
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#endif
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return false;
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}
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static inline bool is_tcf_mirred_egress_mirror(const struct tc_action *a)
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{
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#ifdef CONFIG_NET_CLS_ACT
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if (a->ops && a->ops->id == TCA_ID_MIRRED)
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return to_mirred(a)->tcfm_eaction == TCA_EGRESS_MIRROR;
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#endif
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return false;
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}
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static inline bool is_tcf_mirred_ingress_redirect(const struct tc_action *a)
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{
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#ifdef CONFIG_NET_CLS_ACT
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if (a->ops && a->ops->id == TCA_ID_MIRRED)
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return to_mirred(a)->tcfm_eaction == TCA_INGRESS_REDIR;
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#endif
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return false;
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}
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static inline bool is_tcf_mirred_ingress_mirror(const struct tc_action *a)
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{
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#ifdef CONFIG_NET_CLS_ACT
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if (a->ops && a->ops->id == TCA_ID_MIRRED)
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return to_mirred(a)->tcfm_eaction == TCA_INGRESS_MIRROR;
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#endif
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return false;
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}
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static inline struct net_device *tcf_mirred_dev(const struct tc_action *a)
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{
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return rtnl_dereference(to_mirred(a)->tcfm_dev);
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}
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#endif /* __NET_TC_MIR_H */
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