1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (c) 2008, Intel Corporation. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Author: Alexander Duyck <alexander.h.duyck@intel.com> 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef __NET_TC_SKBEDIT_H 9*4882a593Smuzhiyun #define __NET_TC_SKBEDIT_H 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <net/act_api.h> 12*4882a593Smuzhiyun #include <linux/tc_act/tc_skbedit.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct tcf_skbedit_params { 15*4882a593Smuzhiyun u32 flags; 16*4882a593Smuzhiyun u32 priority; 17*4882a593Smuzhiyun u32 mark; 18*4882a593Smuzhiyun u32 mask; 19*4882a593Smuzhiyun u16 queue_mapping; 20*4882a593Smuzhiyun u16 ptype; 21*4882a593Smuzhiyun struct rcu_head rcu; 22*4882a593Smuzhiyun }; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun struct tcf_skbedit { 25*4882a593Smuzhiyun struct tc_action common; 26*4882a593Smuzhiyun struct tcf_skbedit_params __rcu *params; 27*4882a593Smuzhiyun }; 28*4882a593Smuzhiyun #define to_skbedit(a) ((struct tcf_skbedit *)a) 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun /* Return true iff action is the one identified by FLAG. */ is_tcf_skbedit_with_flag(const struct tc_action * a,u32 flag)31*4882a593Smuzhiyunstatic inline bool is_tcf_skbedit_with_flag(const struct tc_action *a, u32 flag) 32*4882a593Smuzhiyun { 33*4882a593Smuzhiyun #ifdef CONFIG_NET_CLS_ACT 34*4882a593Smuzhiyun u32 flags; 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun if (a->ops && a->ops->id == TCA_ID_SKBEDIT) { 37*4882a593Smuzhiyun rcu_read_lock(); 38*4882a593Smuzhiyun flags = rcu_dereference(to_skbedit(a)->params)->flags; 39*4882a593Smuzhiyun rcu_read_unlock(); 40*4882a593Smuzhiyun return flags == flag; 41*4882a593Smuzhiyun } 42*4882a593Smuzhiyun #endif 43*4882a593Smuzhiyun return false; 44*4882a593Smuzhiyun } 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* Return true iff action is mark */ is_tcf_skbedit_mark(const struct tc_action * a)47*4882a593Smuzhiyunstatic inline bool is_tcf_skbedit_mark(const struct tc_action *a) 48*4882a593Smuzhiyun { 49*4882a593Smuzhiyun return is_tcf_skbedit_with_flag(a, SKBEDIT_F_MARK); 50*4882a593Smuzhiyun } 51*4882a593Smuzhiyun tcf_skbedit_mark(const struct tc_action * a)52*4882a593Smuzhiyunstatic inline u32 tcf_skbedit_mark(const struct tc_action *a) 53*4882a593Smuzhiyun { 54*4882a593Smuzhiyun u32 mark; 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun rcu_read_lock(); 57*4882a593Smuzhiyun mark = rcu_dereference(to_skbedit(a)->params)->mark; 58*4882a593Smuzhiyun rcu_read_unlock(); 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun return mark; 61*4882a593Smuzhiyun } 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun /* Return true iff action is ptype */ is_tcf_skbedit_ptype(const struct tc_action * a)64*4882a593Smuzhiyunstatic inline bool is_tcf_skbedit_ptype(const struct tc_action *a) 65*4882a593Smuzhiyun { 66*4882a593Smuzhiyun return is_tcf_skbedit_with_flag(a, SKBEDIT_F_PTYPE); 67*4882a593Smuzhiyun } 68*4882a593Smuzhiyun tcf_skbedit_ptype(const struct tc_action * a)69*4882a593Smuzhiyunstatic inline u32 tcf_skbedit_ptype(const struct tc_action *a) 70*4882a593Smuzhiyun { 71*4882a593Smuzhiyun u16 ptype; 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun rcu_read_lock(); 74*4882a593Smuzhiyun ptype = rcu_dereference(to_skbedit(a)->params)->ptype; 75*4882a593Smuzhiyun rcu_read_unlock(); 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun return ptype; 78*4882a593Smuzhiyun } 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun /* Return true iff action is priority */ is_tcf_skbedit_priority(const struct tc_action * a)81*4882a593Smuzhiyunstatic inline bool is_tcf_skbedit_priority(const struct tc_action *a) 82*4882a593Smuzhiyun { 83*4882a593Smuzhiyun return is_tcf_skbedit_with_flag(a, SKBEDIT_F_PRIORITY); 84*4882a593Smuzhiyun } 85*4882a593Smuzhiyun tcf_skbedit_priority(const struct tc_action * a)86*4882a593Smuzhiyunstatic inline u32 tcf_skbedit_priority(const struct tc_action *a) 87*4882a593Smuzhiyun { 88*4882a593Smuzhiyun u32 priority; 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun rcu_read_lock(); 91*4882a593Smuzhiyun priority = rcu_dereference(to_skbedit(a)->params)->priority; 92*4882a593Smuzhiyun rcu_read_unlock(); 93*4882a593Smuzhiyun 94*4882a593Smuzhiyun return priority; 95*4882a593Smuzhiyun } 96*4882a593Smuzhiyun 97*4882a593Smuzhiyun #endif /* __NET_TC_SKBEDIT_H */ 98