1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 21da177e4SLinus Torvalds #ifndef __NET_PKT_CLS_H 31da177e4SLinus Torvalds #define __NET_PKT_CLS_H 41da177e4SLinus Torvalds 51da177e4SLinus Torvalds #include <linux/pkt_cls.h> 67aa0045dSCong Wang #include <linux/workqueue.h> 71da177e4SLinus Torvalds #include <net/sch_generic.h> 81da177e4SLinus Torvalds #include <net/act_api.h> 9a5148626SJiri Pirko #include <net/net_namespace.h> 101da177e4SLinus Torvalds 11cd11b164SPaolo Abeni /* TC action not accessible from user space */ 12720f22feSJohn Hurley #define TC_ACT_CONSUMED (TC_ACT_VALUE_MAX + 1) 13cd11b164SPaolo Abeni 141da177e4SLinus Torvalds /* Basic packet classifier frontend definitions. */ 151da177e4SLinus Torvalds 16fd2c3ef7SEric Dumazet struct tcf_walker { 171da177e4SLinus Torvalds int stop; 181da177e4SLinus Torvalds int skip; 191da177e4SLinus Torvalds int count; 206676d5e4SVlad Buslov bool nonempty; 2101683a14SVlad Buslov unsigned long cookie; 228113c095SWANG Cong int (*fn)(struct tcf_proto *, void *node, struct tcf_walker *); 231da177e4SLinus Torvalds }; 241da177e4SLinus Torvalds 255c15257fSJoe Perches int register_tcf_proto_ops(struct tcf_proto_ops *ops); 26bc5c8260SZhengchao Shao void unregister_tcf_proto_ops(struct tcf_proto_ops *ops); 271da177e4SLinus Torvalds 288c4083b3SJiri Pirko struct tcf_block_ext_info { 2932f8c409SPablo Neira Ayuso enum flow_block_binder_type binder_type; 30c7eb7d72SJiri Pirko tcf_chain_head_change_t *chain_head_change; 31c7eb7d72SJiri Pirko void *chain_head_change_priv; 3248617387SJiri Pirko u32 block_index; 338c4083b3SJiri Pirko }; 348c4083b3SJiri Pirko 353625750fSPetr Machata struct tcf_qevent { 363625750fSPetr Machata struct tcf_block *block; 373625750fSPetr Machata struct tcf_block_ext_info info; 383625750fSPetr Machata struct tcf_proto __rcu *filter_chain; 393625750fSPetr Machata }; 403625750fSPetr Machata 41acb67442SJiri Pirko struct tcf_block_cb; 42aaa908ffSCong Wang bool tcf_queue_work(struct rcu_work *rwork, work_func_t func); 43acb67442SJiri Pirko 448ae70032SJiri Pirko #ifdef CONFIG_NET_CLS 451f3ed383SJiri Pirko struct tcf_chain *tcf_chain_get_by_act(struct tcf_block *block, 461f3ed383SJiri Pirko u32 chain_index); 471f3ed383SJiri Pirko void tcf_chain_put_by_act(struct tcf_chain *chain); 48bbf73830SVlad Buslov struct tcf_chain *tcf_get_next_chain(struct tcf_block *block, 49bbf73830SVlad Buslov struct tcf_chain *chain); 50fe2923afSVlad Buslov struct tcf_proto *tcf_get_next_proto(struct tcf_chain *chain, 510fca55edSVlad Buslov struct tcf_proto *tp); 52f36fe1c4SJiri Pirko void tcf_block_netif_keep_dst(struct tcf_block *block); 536529eabaSJiri Pirko int tcf_block_get(struct tcf_block **p_block, 548d1a77f9SAlexander Aring struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, 558d1a77f9SAlexander Aring struct netlink_ext_ack *extack); 56c7eb7d72SJiri Pirko int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, 578d1a77f9SAlexander Aring struct tcf_block_ext_info *ei, 588d1a77f9SAlexander Aring struct netlink_ext_ack *extack); 596529eabaSJiri Pirko void tcf_block_put(struct tcf_block *block); 60c7eb7d72SJiri Pirko void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, 618c4083b3SJiri Pirko struct tcf_block_ext_info *ei); 6244186460SJiri Pirko 6348617387SJiri Pirko static inline bool tcf_block_shared(struct tcf_block *block) 6448617387SJiri Pirko { 6548617387SJiri Pirko return block->index; 6648617387SJiri Pirko } 6748617387SJiri Pirko 68c1a970d0SVlad Buslov static inline bool tcf_block_non_null_shared(struct tcf_block *block) 69c1a970d0SVlad Buslov { 70c1a970d0SVlad Buslov return block && block->index; 71c1a970d0SVlad Buslov } 72c1a970d0SVlad Buslov 7344186460SJiri Pirko static inline struct Qdisc *tcf_block_q(struct tcf_block *block) 7444186460SJiri Pirko { 7548617387SJiri Pirko WARN_ON(tcf_block_shared(block)); 7644186460SJiri Pirko return block->q; 7744186460SJiri Pirko } 7844186460SJiri Pirko 793aa26055SDavide Caratti int tcf_classify(struct sk_buff *skb, 803aa26055SDavide Caratti const struct tcf_block *block, 817d17c544SPaul Blakey const struct tcf_proto *tp, struct tcf_result *res, 827d17c544SPaul Blakey bool compat_mode); 8387d83093SJiri Pirko 84fe0df81dSZhengchao Shao static inline bool tc_cls_stats_dump(struct tcf_proto *tp, 85fe0df81dSZhengchao Shao struct tcf_walker *arg, 86fe0df81dSZhengchao Shao void *filter) 87fe0df81dSZhengchao Shao { 88fe0df81dSZhengchao Shao if (arg->count >= arg->skip && arg->fn(tp, filter, arg) < 0) { 89fe0df81dSZhengchao Shao arg->stop = 1; 90fe0df81dSZhengchao Shao return false; 91fe0df81dSZhengchao Shao } 92fe0df81dSZhengchao Shao 93fe0df81dSZhengchao Shao arg->count++; 94fe0df81dSZhengchao Shao return true; 95fe0df81dSZhengchao Shao } 96fe0df81dSZhengchao Shao 978ae70032SJiri Pirko #else 9888c44a52SPieter Jansen van Vuuren static inline bool tcf_block_shared(struct tcf_block *block) 9988c44a52SPieter Jansen van Vuuren { 10088c44a52SPieter Jansen van Vuuren return false; 10188c44a52SPieter Jansen van Vuuren } 10288c44a52SPieter Jansen van Vuuren 103c1a970d0SVlad Buslov static inline bool tcf_block_non_null_shared(struct tcf_block *block) 104c1a970d0SVlad Buslov { 105c1a970d0SVlad Buslov return false; 106c1a970d0SVlad Buslov } 107c1a970d0SVlad Buslov 1086529eabaSJiri Pirko static inline 1096529eabaSJiri Pirko int tcf_block_get(struct tcf_block **p_block, 1103c149091SSudip Mukherjee struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, 1113c149091SSudip Mukherjee struct netlink_ext_ack *extack) 1126529eabaSJiri Pirko { 1136529eabaSJiri Pirko return 0; 1146529eabaSJiri Pirko } 1156529eabaSJiri Pirko 1168c4083b3SJiri Pirko static inline 117c7eb7d72SJiri Pirko int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, 11833c30a8bSQuentin Monnet struct tcf_block_ext_info *ei, 11933c30a8bSQuentin Monnet struct netlink_ext_ack *extack) 1208c4083b3SJiri Pirko { 1218c4083b3SJiri Pirko return 0; 1228c4083b3SJiri Pirko } 1238c4083b3SJiri Pirko 1246529eabaSJiri Pirko static inline void tcf_block_put(struct tcf_block *block) 1258ae70032SJiri Pirko { 1268ae70032SJiri Pirko } 12787d83093SJiri Pirko 1288c4083b3SJiri Pirko static inline 129c7eb7d72SJiri Pirko void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, 1308c4083b3SJiri Pirko struct tcf_block_ext_info *ei) 1318c4083b3SJiri Pirko { 1328c4083b3SJiri Pirko } 1338c4083b3SJiri Pirko 13444186460SJiri Pirko static inline struct Qdisc *tcf_block_q(struct tcf_block *block) 13544186460SJiri Pirko { 13644186460SJiri Pirko return NULL; 13744186460SJiri Pirko } 13844186460SJiri Pirko 139acb67442SJiri Pirko static inline 140a7323311SPablo Neira Ayuso int tc_setup_cb_block_register(struct tcf_block *block, flow_setup_cb_t *cb, 141acb67442SJiri Pirko void *cb_priv) 142acb67442SJiri Pirko { 143acb67442SJiri Pirko return 0; 144acb67442SJiri Pirko } 145acb67442SJiri Pirko 146acb67442SJiri Pirko static inline 147a7323311SPablo Neira Ayuso void tc_setup_cb_block_unregister(struct tcf_block *block, flow_setup_cb_t *cb, 148acb67442SJiri Pirko void *cb_priv) 149acb67442SJiri Pirko { 150acb67442SJiri Pirko } 151acb67442SJiri Pirko 1523aa26055SDavide Caratti static inline int tcf_classify(struct sk_buff *skb, 1533aa26055SDavide Caratti const struct tcf_block *block, 1549410c940SPaul Blakey const struct tcf_proto *tp, 1559410c940SPaul Blakey struct tcf_result *res, bool compat_mode) 1569410c940SPaul Blakey { 1579410c940SPaul Blakey return TC_ACT_UNSPEC; 1589410c940SPaul Blakey } 1599410c940SPaul Blakey 1608ae70032SJiri Pirko #endif 161cf1facdaSJiri Pirko 1621da177e4SLinus Torvalds static inline unsigned long 1631da177e4SLinus Torvalds __cls_set_class(unsigned long *clp, unsigned long cl) 1641da177e4SLinus Torvalds { 165a0efb80cSWANG Cong return xchg(clp, cl); 1661da177e4SLinus Torvalds } 1671da177e4SLinus Torvalds 1682e24cd75SCong Wang static inline void 1692e24cd75SCong Wang __tcf_bind_filter(struct Qdisc *q, struct tcf_result *r, unsigned long base) 1701da177e4SLinus Torvalds { 1712e24cd75SCong Wang unsigned long cl; 1721da177e4SLinus Torvalds 1732e24cd75SCong Wang cl = q->ops->cl_ops->bind_tcf(q, base, r->classid); 1742e24cd75SCong Wang cl = __cls_set_class(&r->class, cl); 1752e24cd75SCong Wang if (cl) 1762e24cd75SCong Wang q->ops->cl_ops->unbind_tcf(q, cl); 1771da177e4SLinus Torvalds } 1781da177e4SLinus Torvalds 1791da177e4SLinus Torvalds static inline void 1801da177e4SLinus Torvalds tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) 1811da177e4SLinus Torvalds { 18234e3759cSJiri Pirko struct Qdisc *q = tp->chain->block->q; 1831da177e4SLinus Torvalds 18434e3759cSJiri Pirko /* Check q as it is not set for shared blocks. In that case, 18534e3759cSJiri Pirko * setting class is not supported. 18634e3759cSJiri Pirko */ 18734e3759cSJiri Pirko if (!q) 18834e3759cSJiri Pirko return; 1892e24cd75SCong Wang sch_tree_lock(q); 1902e24cd75SCong Wang __tcf_bind_filter(q, r, base); 1912e24cd75SCong Wang sch_tree_unlock(q); 1922e24cd75SCong Wang } 1932e24cd75SCong Wang 1942e24cd75SCong Wang static inline void 1952e24cd75SCong Wang __tcf_unbind_filter(struct Qdisc *q, struct tcf_result *r) 1962e24cd75SCong Wang { 1972e24cd75SCong Wang unsigned long cl; 1982e24cd75SCong Wang 1992e24cd75SCong Wang if ((cl = __cls_set_class(&r->class, 0)) != 0) 20034e3759cSJiri Pirko q->ops->cl_ops->unbind_tcf(q, cl); 2011da177e4SLinus Torvalds } 2021da177e4SLinus Torvalds 2031da177e4SLinus Torvalds static inline void 2041da177e4SLinus Torvalds tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) 2051da177e4SLinus Torvalds { 20634e3759cSJiri Pirko struct Qdisc *q = tp->chain->block->q; 2071da177e4SLinus Torvalds 20834e3759cSJiri Pirko if (!q) 20934e3759cSJiri Pirko return; 2102e24cd75SCong Wang __tcf_unbind_filter(q, r); 2111da177e4SLinus Torvalds } 2121da177e4SLinus Torvalds 213402963e3SZhengchao Shao static inline void tc_cls_bind_class(u32 classid, unsigned long cl, 214402963e3SZhengchao Shao void *q, struct tcf_result *res, 215402963e3SZhengchao Shao unsigned long base) 216402963e3SZhengchao Shao { 217402963e3SZhengchao Shao if (res->classid == classid) { 218402963e3SZhengchao Shao if (cl) 219402963e3SZhengchao Shao __tcf_bind_filter(q, res, base); 220402963e3SZhengchao Shao else 221402963e3SZhengchao Shao __tcf_unbind_filter(q, res); 222402963e3SZhengchao Shao } 223402963e3SZhengchao Shao } 224402963e3SZhengchao Shao 225fd2c3ef7SEric Dumazet struct tcf_exts { 2261da177e4SLinus Torvalds #ifdef CONFIG_NET_CLS_ACT 22733be6271SWANG Cong __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ 22822dc13c8SWANG Cong int nr_actions; 22922dc13c8SWANG Cong struct tc_action **actions; 230e4b95c41SCong Wang struct net *net; 231dbdcda63SEric Dumazet netns_tracker ns_tracker; 2321da177e4SLinus Torvalds #endif 2331da177e4SLinus Torvalds /* Map to export classifier specific extension TLV types to the 2341da177e4SLinus Torvalds * generic extensions API. Unsupported extensions must be set to 0. 2351da177e4SLinus Torvalds */ 2361da177e4SLinus Torvalds int action; 2371da177e4SLinus Torvalds int police; 2381da177e4SLinus Torvalds }; 2391da177e4SLinus Torvalds 24014215108SCong Wang static inline int tcf_exts_init(struct tcf_exts *exts, struct net *net, 24114215108SCong Wang int action, int police) 24233be6271SWANG Cong { 24333be6271SWANG Cong #ifdef CONFIG_NET_CLS_ACT 2445da57f42SWANG Cong exts->type = 0; 24522dc13c8SWANG Cong exts->nr_actions = 0; 246cb963a19SEric Dumazet /* Note: we do not own yet a reference on net. 247cb963a19SEric Dumazet * This reference might be taken later from tcf_exts_get_net(). 248cb963a19SEric Dumazet */ 24914215108SCong Wang exts->net = net; 25022dc13c8SWANG Cong exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *), 25122dc13c8SWANG Cong GFP_KERNEL); 252b9a24bb7SWANG Cong if (!exts->actions) 253b9a24bb7SWANG Cong return -ENOMEM; 25433be6271SWANG Cong #endif 2555da57f42SWANG Cong exts->action = action; 2565da57f42SWANG Cong exts->police = police; 257b9a24bb7SWANG Cong return 0; 25833be6271SWANG Cong } 25933be6271SWANG Cong 260e4b95c41SCong Wang /* Return false if the netns is being destroyed in cleanup_net(). Callers 261e4b95c41SCong Wang * need to do cleanup synchronously in this case, otherwise may race with 262e4b95c41SCong Wang * tc_action_net_exit(). Return true for other cases. 263e4b95c41SCong Wang */ 264e4b95c41SCong Wang static inline bool tcf_exts_get_net(struct tcf_exts *exts) 265e4b95c41SCong Wang { 266e4b95c41SCong Wang #ifdef CONFIG_NET_CLS_ACT 267e4b95c41SCong Wang exts->net = maybe_get_net(exts->net); 268dbdcda63SEric Dumazet if (exts->net) 269dbdcda63SEric Dumazet netns_tracker_alloc(exts->net, &exts->ns_tracker, GFP_KERNEL); 270e4b95c41SCong Wang return exts->net != NULL; 271e4b95c41SCong Wang #else 272e4b95c41SCong Wang return true; 273e4b95c41SCong Wang #endif 274e4b95c41SCong Wang } 275e4b95c41SCong Wang 276e4b95c41SCong Wang static inline void tcf_exts_put_net(struct tcf_exts *exts) 277e4b95c41SCong Wang { 278e4b95c41SCong Wang #ifdef CONFIG_NET_CLS_ACT 279e4b95c41SCong Wang if (exts->net) 280dbdcda63SEric Dumazet put_net_track(exts->net, &exts->ns_tracker); 281e4b95c41SCong Wang #endif 282e4b95c41SCong Wang } 283e4b95c41SCong Wang 28422dc13c8SWANG Cong #ifdef CONFIG_NET_CLS_ACT 285244cd96aSCong Wang #define tcf_exts_for_each_action(i, a, exts) \ 286244cd96aSCong Wang for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++) 287244cd96aSCong Wang #else 288244cd96aSCong Wang #define tcf_exts_for_each_action(i, a, exts) \ 289191672caSArnd Bergmann for (; 0; (void)(i), (void)(a), (void)(exts)) 29022dc13c8SWANG Cong #endif 29122dc13c8SWANG Cong 2928cbfe939SBaowen Zheng #define tcf_act_for_each_action(i, a, actions) \ 2938cbfe939SBaowen Zheng for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = actions[i]); i++) 2948cbfe939SBaowen Zheng 295*5246c896SOz Shlomo static inline bool tc_act_in_hw(struct tc_action *act) 296*5246c896SOz Shlomo { 297*5246c896SOz Shlomo return !!act->in_hw_count; 298*5246c896SOz Shlomo } 299*5246c896SOz Shlomo 300d897a638SJakub Kicinski static inline void 301bcd64368SBaowen Zheng tcf_exts_hw_stats_update(const struct tcf_exts *exts, 302*5246c896SOz Shlomo struct flow_stats *stats, 303*5246c896SOz Shlomo bool use_act_stats) 304d897a638SJakub Kicinski { 305d897a638SJakub Kicinski #ifdef CONFIG_NET_CLS_ACT 306d897a638SJakub Kicinski int i; 307d897a638SJakub Kicinski 308d897a638SJakub Kicinski for (i = 0; i < exts->nr_actions; i++) { 309d897a638SJakub Kicinski struct tc_action *a = exts->actions[i]; 310d897a638SJakub Kicinski 311*5246c896SOz Shlomo if (use_act_stats || tc_act_in_hw(a)) { 312*5246c896SOz Shlomo if (!tcf_action_update_hw_stats(a)) 313*5246c896SOz Shlomo continue; 314*5246c896SOz Shlomo } 315*5246c896SOz Shlomo 316c7a66f8dSBaowen Zheng preempt_disable(); 317ac7d2790SOz Shlomo tcf_action_stats_update(a, stats->bytes, stats->pkts, stats->drops, 318ac7d2790SOz Shlomo stats->lastused, true); 319c7a66f8dSBaowen Zheng preempt_enable(); 320c7a66f8dSBaowen Zheng 321ac7d2790SOz Shlomo a->used_hw_stats = stats->used_hw_stats; 322ac7d2790SOz Shlomo a->used_hw_stats_valid = stats->used_hw_stats_valid; 323d897a638SJakub Kicinski } 324d897a638SJakub Kicinski #endif 325d897a638SJakub Kicinski } 326d897a638SJakub Kicinski 3271da177e4SLinus Torvalds /** 3283bcc0cecSJiri Pirko * tcf_exts_has_actions - check if at least one action is present 3293bcc0cecSJiri Pirko * @exts: tc filter extensions handle 3303bcc0cecSJiri Pirko * 3313bcc0cecSJiri Pirko * Returns true if at least one action is present. 3323bcc0cecSJiri Pirko */ 3333bcc0cecSJiri Pirko static inline bool tcf_exts_has_actions(struct tcf_exts *exts) 3343bcc0cecSJiri Pirko { 3352734437eSWANG Cong #ifdef CONFIG_NET_CLS_ACT 3363bcc0cecSJiri Pirko return exts->nr_actions; 3373bcc0cecSJiri Pirko #else 3383bcc0cecSJiri Pirko return false; 3393bcc0cecSJiri Pirko #endif 3403bcc0cecSJiri Pirko } 3412734437eSWANG Cong 3423bcc0cecSJiri Pirko /** 343af69afc5SJiri Pirko * tcf_exts_exec - execute tc filter extensions 344af69afc5SJiri Pirko * @skb: socket buffer 345af69afc5SJiri Pirko * @exts: tc filter extensions handle 346af69afc5SJiri Pirko * @res: desired result 347af69afc5SJiri Pirko * 348af089e70SJiri Pirko * Executes all configured extensions. Returns TC_ACT_OK on a normal execution, 349af69afc5SJiri Pirko * a negative number if the filter must be considered unmatched or 350af69afc5SJiri Pirko * a positive action code (TC_ACT_*) which must be returned to the 351af69afc5SJiri Pirko * underlying layer. 352af69afc5SJiri Pirko */ 353af69afc5SJiri Pirko static inline int 354af69afc5SJiri Pirko tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, 355af69afc5SJiri Pirko struct tcf_result *res) 356af69afc5SJiri Pirko { 357af69afc5SJiri Pirko #ifdef CONFIG_NET_CLS_ACT 358ec1a9ccaSJiri Pirko return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); 359af69afc5SJiri Pirko #endif 360af089e70SJiri Pirko return TC_ACT_OK; 361af69afc5SJiri Pirko } 362af69afc5SJiri Pirko 3635c15257fSJoe Perches int tcf_exts_validate(struct net *net, struct tcf_proto *tp, 364c1b52739SBenjamin LaHaise struct nlattr **tb, struct nlattr *rate_tlv, 365695176bfSCong Wang struct tcf_exts *exts, u32 flags, 36650a56190SAlexander Aring struct netlink_ext_ack *extack); 367c86e0209SBaowen Zheng int tcf_exts_validate_ex(struct net *net, struct tcf_proto *tp, struct nlattr **tb, 368c86e0209SBaowen Zheng struct nlattr *rate_tlv, struct tcf_exts *exts, 369c86e0209SBaowen Zheng u32 flags, u32 fl_flags, struct netlink_ext_ack *extack); 37018d0264fSWANG Cong void tcf_exts_destroy(struct tcf_exts *exts); 3719b0d4446SJiri Pirko void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src); 3725da57f42SWANG Cong int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); 373ca44b738SVlad Buslov int tcf_exts_terse_dump(struct sk_buff *skb, struct tcf_exts *exts); 3745da57f42SWANG Cong int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); 3751da177e4SLinus Torvalds 3761da177e4SLinus Torvalds /** 3771da177e4SLinus Torvalds * struct tcf_pkt_info - packet information 3780161d151SBijie Xu * 3790161d151SBijie Xu * @ptr: start of the pkt data 3800161d151SBijie Xu * @nexthdr: offset of the next header 3811da177e4SLinus Torvalds */ 382fd2c3ef7SEric Dumazet struct tcf_pkt_info { 3831da177e4SLinus Torvalds unsigned char * ptr; 3841da177e4SLinus Torvalds int nexthdr; 3851da177e4SLinus Torvalds }; 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds #ifdef CONFIG_NET_EMATCH 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds struct tcf_ematch_ops; 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds /** 3921da177e4SLinus Torvalds * struct tcf_ematch - extended match (ematch) 3931da177e4SLinus Torvalds * 3941da177e4SLinus Torvalds * @matchid: identifier to allow userspace to reidentify a match 3951da177e4SLinus Torvalds * @flags: flags specifying attributes and the relation to other matches 3961da177e4SLinus Torvalds * @ops: the operations lookup table of the corresponding ematch module 3971da177e4SLinus Torvalds * @datalen: length of the ematch specific configuration data 3981da177e4SLinus Torvalds * @data: ematch specific data 3990161d151SBijie Xu * @net: the network namespace 4001da177e4SLinus Torvalds */ 401fd2c3ef7SEric Dumazet struct tcf_ematch { 4021da177e4SLinus Torvalds struct tcf_ematch_ops * ops; 4031da177e4SLinus Torvalds unsigned long data; 4041da177e4SLinus Torvalds unsigned int datalen; 4051da177e4SLinus Torvalds u16 matchid; 4061da177e4SLinus Torvalds u16 flags; 40782a470f1SJohn Fastabend struct net *net; 4081da177e4SLinus Torvalds }; 4091da177e4SLinus Torvalds 4101da177e4SLinus Torvalds static inline int tcf_em_is_container(struct tcf_ematch *em) 4111da177e4SLinus Torvalds { 4121da177e4SLinus Torvalds return !em->ops; 4131da177e4SLinus Torvalds } 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds static inline int tcf_em_is_simple(struct tcf_ematch *em) 4161da177e4SLinus Torvalds { 4171da177e4SLinus Torvalds return em->flags & TCF_EM_SIMPLE; 4181da177e4SLinus Torvalds } 4191da177e4SLinus Torvalds 4201da177e4SLinus Torvalds static inline int tcf_em_is_inverted(struct tcf_ematch *em) 4211da177e4SLinus Torvalds { 4221da177e4SLinus Torvalds return em->flags & TCF_EM_INVERT; 4231da177e4SLinus Torvalds } 4241da177e4SLinus Torvalds 4251da177e4SLinus Torvalds static inline int tcf_em_last_match(struct tcf_ematch *em) 4261da177e4SLinus Torvalds { 4271da177e4SLinus Torvalds return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; 4281da177e4SLinus Torvalds } 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds static inline int tcf_em_early_end(struct tcf_ematch *em, int result) 4311da177e4SLinus Torvalds { 4321da177e4SLinus Torvalds if (tcf_em_last_match(em)) 4331da177e4SLinus Torvalds return 1; 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds if (result == 0 && em->flags & TCF_EM_REL_AND) 4361da177e4SLinus Torvalds return 1; 4371da177e4SLinus Torvalds 4381da177e4SLinus Torvalds if (result != 0 && em->flags & TCF_EM_REL_OR) 4391da177e4SLinus Torvalds return 1; 4401da177e4SLinus Torvalds 4411da177e4SLinus Torvalds return 0; 4421da177e4SLinus Torvalds } 4431da177e4SLinus Torvalds 4441da177e4SLinus Torvalds /** 4451da177e4SLinus Torvalds * struct tcf_ematch_tree - ematch tree handle 4461da177e4SLinus Torvalds * 4471da177e4SLinus Torvalds * @hdr: ematch tree header supplied by userspace 4481da177e4SLinus Torvalds * @matches: array of ematches 4491da177e4SLinus Torvalds */ 450fd2c3ef7SEric Dumazet struct tcf_ematch_tree { 4511da177e4SLinus Torvalds struct tcf_ematch_tree_hdr hdr; 4521da177e4SLinus Torvalds struct tcf_ematch * matches; 4531da177e4SLinus Torvalds 4541da177e4SLinus Torvalds }; 4551da177e4SLinus Torvalds 4561da177e4SLinus Torvalds /** 4571da177e4SLinus Torvalds * struct tcf_ematch_ops - ematch module operations 4581da177e4SLinus Torvalds * 4591da177e4SLinus Torvalds * @kind: identifier (kind) of this ematch module 4601da177e4SLinus Torvalds * @datalen: length of expected configuration data (optional) 4611da177e4SLinus Torvalds * @change: called during validation (optional) 4621da177e4SLinus Torvalds * @match: called during ematch tree evaluation, must return 1/0 4631da177e4SLinus Torvalds * @destroy: called during destroyage (optional) 4641da177e4SLinus Torvalds * @dump: called during dumping process (optional) 4651da177e4SLinus Torvalds * @owner: owner, must be set to THIS_MODULE 4661da177e4SLinus Torvalds * @link: link to previous/next ematch module (internal use) 4671da177e4SLinus Torvalds */ 468fd2c3ef7SEric Dumazet struct tcf_ematch_ops { 4691da177e4SLinus Torvalds int kind; 4701da177e4SLinus Torvalds int datalen; 47182a470f1SJohn Fastabend int (*change)(struct net *net, void *, 4721da177e4SLinus Torvalds int, struct tcf_ematch *); 4731da177e4SLinus Torvalds int (*match)(struct sk_buff *, struct tcf_ematch *, 4741da177e4SLinus Torvalds struct tcf_pkt_info *); 47582a470f1SJohn Fastabend void (*destroy)(struct tcf_ematch *); 4761da177e4SLinus Torvalds int (*dump)(struct sk_buff *, struct tcf_ematch *); 4771da177e4SLinus Torvalds struct module *owner; 4781da177e4SLinus Torvalds struct list_head link; 4791da177e4SLinus Torvalds }; 4801da177e4SLinus Torvalds 4815c15257fSJoe Perches int tcf_em_register(struct tcf_ematch_ops *); 4825c15257fSJoe Perches void tcf_em_unregister(struct tcf_ematch_ops *); 4835c15257fSJoe Perches int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, 4841da177e4SLinus Torvalds struct tcf_ematch_tree *); 48582a470f1SJohn Fastabend void tcf_em_tree_destroy(struct tcf_ematch_tree *); 4865c15257fSJoe Perches int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); 4875c15257fSJoe Perches int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, 4881da177e4SLinus Torvalds struct tcf_pkt_info *); 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds /** 4911da177e4SLinus Torvalds * tcf_em_tree_match - evaulate an ematch tree 4921da177e4SLinus Torvalds * 4931da177e4SLinus Torvalds * @skb: socket buffer of the packet in question 4941da177e4SLinus Torvalds * @tree: ematch tree to be used for evaluation 4951da177e4SLinus Torvalds * @info: packet information examined by classifier 4961da177e4SLinus Torvalds * 4971da177e4SLinus Torvalds * This function matches @skb against the ematch tree in @tree by going 4981da177e4SLinus Torvalds * through all ematches respecting their logic relations returning 4991da177e4SLinus Torvalds * as soon as the result is obvious. 5001da177e4SLinus Torvalds * 5011da177e4SLinus Torvalds * Returns 1 if the ematch tree as-one matches, no ematches are configured 5021da177e4SLinus Torvalds * or ematch is not enabled in the kernel, otherwise 0 is returned. 5031da177e4SLinus Torvalds */ 5041da177e4SLinus Torvalds static inline int tcf_em_tree_match(struct sk_buff *skb, 5051da177e4SLinus Torvalds struct tcf_ematch_tree *tree, 5061da177e4SLinus Torvalds struct tcf_pkt_info *info) 5071da177e4SLinus Torvalds { 5081da177e4SLinus Torvalds if (tree->hdr.nmatches) 5091da177e4SLinus Torvalds return __tcf_em_tree_match(skb, tree, info); 5101da177e4SLinus Torvalds else 5111da177e4SLinus Torvalds return 1; 5121da177e4SLinus Torvalds } 5131da177e4SLinus Torvalds 514db3d99c0SPatrick McHardy #define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) 515db3d99c0SPatrick McHardy 5161da177e4SLinus Torvalds #else /* CONFIG_NET_EMATCH */ 5171da177e4SLinus Torvalds 518fd2c3ef7SEric Dumazet struct tcf_ematch_tree { 5191da177e4SLinus Torvalds }; 5201da177e4SLinus Torvalds 5211da177e4SLinus Torvalds #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) 52282a470f1SJohn Fastabend #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) 5231da177e4SLinus Torvalds #define tcf_em_tree_dump(skb, t, tlv) (0) 5241da177e4SLinus Torvalds #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) 5251da177e4SLinus Torvalds 5261da177e4SLinus Torvalds #endif /* CONFIG_NET_EMATCH */ 5271da177e4SLinus Torvalds 5281da177e4SLinus Torvalds static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) 5291da177e4SLinus Torvalds { 5301da177e4SLinus Torvalds switch (layer) { 5311da177e4SLinus Torvalds case TCF_LAYER_LINK: 532d3303a65SWolfgang Bumiller return skb_mac_header(skb); 5331da177e4SLinus Torvalds case TCF_LAYER_NETWORK: 534d56f90a7SArnaldo Carvalho de Melo return skb_network_header(skb); 5351da177e4SLinus Torvalds case TCF_LAYER_TRANSPORT: 5369c70220bSArnaldo Carvalho de Melo return skb_transport_header(skb); 5371da177e4SLinus Torvalds } 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds return NULL; 5401da177e4SLinus Torvalds } 5411da177e4SLinus Torvalds 542eddc9ec5SArnaldo Carvalho de Melo static inline int tcf_valid_offset(const struct sk_buff *skb, 543eddc9ec5SArnaldo Carvalho de Melo const unsigned char *ptr, const int len) 5441da177e4SLinus Torvalds { 545da521b2cSDavid S. Miller return likely((ptr + len) <= skb_tail_pointer(skb) && 546da521b2cSDavid S. Miller ptr >= skb->head && 547da521b2cSDavid S. Miller (ptr <= (ptr + len))); 5481da177e4SLinus Torvalds } 5491da177e4SLinus Torvalds 5501da177e4SLinus Torvalds static inline int 5511057c55fSAlexander Aring tcf_change_indev(struct net *net, struct nlattr *indev_tlv, 5521057c55fSAlexander Aring struct netlink_ext_ack *extack) 5531da177e4SLinus Torvalds { 5542519a602SWANG Cong char indev[IFNAMSIZ]; 555c01003c2SPatrick McHardy struct net_device *dev; 556c01003c2SPatrick McHardy 557872f6903SFrancis Laniel if (nla_strscpy(indev, indev_tlv, IFNAMSIZ) < 0) { 558e4a58ef3SGuillaume Nault NL_SET_ERR_MSG_ATTR(extack, indev_tlv, 559e4a58ef3SGuillaume Nault "Interface name too long"); 5602519a602SWANG Cong return -EINVAL; 5611057c55fSAlexander Aring } 5622519a602SWANG Cong dev = __dev_get_by_name(net, indev); 563e4a58ef3SGuillaume Nault if (!dev) { 564e4a58ef3SGuillaume Nault NL_SET_ERR_MSG_ATTR(extack, indev_tlv, 565e4a58ef3SGuillaume Nault "Network device not found"); 5662519a602SWANG Cong return -ENODEV; 567e4a58ef3SGuillaume Nault } 5682519a602SWANG Cong return dev->ifindex; 5691da177e4SLinus Torvalds } 5701da177e4SLinus Torvalds 5712519a602SWANG Cong static inline bool 5722519a602SWANG Cong tcf_match_indev(struct sk_buff *skb, int ifindex) 5732519a602SWANG Cong { 5742519a602SWANG Cong if (!ifindex) 5752519a602SWANG Cong return true; 5762519a602SWANG Cong if (!skb->skb_iif) 5772519a602SWANG Cong return false; 5782519a602SWANG Cong return ifindex == skb->skb_iif; 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds 5819c1c0e12SBaowen Zheng int tc_setup_offload_action(struct flow_action *flow_action, 582c2ccf84eSIdo Schimmel const struct tcf_exts *exts, 583c2ccf84eSIdo Schimmel struct netlink_ext_ack *extack); 5849c1c0e12SBaowen Zheng void tc_cleanup_offload_action(struct flow_action *flow_action); 5858cbfe939SBaowen Zheng int tc_setup_action(struct flow_action *flow_action, 586c2ccf84eSIdo Schimmel struct tc_action *actions[], 587c2ccf84eSIdo Schimmel struct netlink_ext_ack *extack); 5885a6ff4b1SVlad Buslov 589aeb3fecdSCong Wang int tc_setup_cb_call(struct tcf_block *block, enum tc_setup_type type, 59040119211SVlad Buslov void *type_data, bool err_stop, bool rtnl_held); 59140119211SVlad Buslov int tc_setup_cb_add(struct tcf_block *block, struct tcf_proto *tp, 59240119211SVlad Buslov enum tc_setup_type type, void *type_data, bool err_stop, 59340119211SVlad Buslov u32 *flags, unsigned int *in_hw_count, bool rtnl_held); 59440119211SVlad Buslov int tc_setup_cb_replace(struct tcf_block *block, struct tcf_proto *tp, 59540119211SVlad Buslov enum tc_setup_type type, void *type_data, bool err_stop, 59640119211SVlad Buslov u32 *old_flags, unsigned int *old_in_hw_count, 59740119211SVlad Buslov u32 *new_flags, unsigned int *new_in_hw_count, 59840119211SVlad Buslov bool rtnl_held); 59940119211SVlad Buslov int tc_setup_cb_destroy(struct tcf_block *block, struct tcf_proto *tp, 60040119211SVlad Buslov enum tc_setup_type type, void *type_data, bool err_stop, 60140119211SVlad Buslov u32 *flags, unsigned int *in_hw_count, bool rtnl_held); 60240119211SVlad Buslov int tc_setup_cb_reoffload(struct tcf_block *block, struct tcf_proto *tp, 60340119211SVlad Buslov bool add, flow_setup_cb_t *cb, 60440119211SVlad Buslov enum tc_setup_type type, void *type_data, 60540119211SVlad Buslov void *cb_priv, u32 *flags, unsigned int *in_hw_count); 606e3ab786bSPablo Neira Ayuso unsigned int tcf_exts_num_actions(struct tcf_exts *exts); 607717503b9SJiri Pirko 6083625750fSPetr Machata #ifdef CONFIG_NET_CLS_ACT 6093625750fSPetr Machata int tcf_qevent_init(struct tcf_qevent *qe, struct Qdisc *sch, 6103625750fSPetr Machata enum flow_block_binder_type binder_type, 6113625750fSPetr Machata struct nlattr *block_index_attr, 6123625750fSPetr Machata struct netlink_ext_ack *extack); 6133625750fSPetr Machata void tcf_qevent_destroy(struct tcf_qevent *qe, struct Qdisc *sch); 6143625750fSPetr Machata int tcf_qevent_validate_change(struct tcf_qevent *qe, struct nlattr *block_index_attr, 6153625750fSPetr Machata struct netlink_ext_ack *extack); 6163625750fSPetr Machata struct sk_buff *tcf_qevent_handle(struct tcf_qevent *qe, struct Qdisc *sch, struct sk_buff *skb, 61755f656cdSPetr Machata struct sk_buff **to_free, int *ret); 6183625750fSPetr Machata int tcf_qevent_dump(struct sk_buff *skb, int attr_name, struct tcf_qevent *qe); 6193625750fSPetr Machata #else 6203625750fSPetr Machata static inline int tcf_qevent_init(struct tcf_qevent *qe, struct Qdisc *sch, 6213625750fSPetr Machata enum flow_block_binder_type binder_type, 6223625750fSPetr Machata struct nlattr *block_index_attr, 6233625750fSPetr Machata struct netlink_ext_ack *extack) 6243625750fSPetr Machata { 6253625750fSPetr Machata return 0; 6263625750fSPetr Machata } 6273625750fSPetr Machata 6283625750fSPetr Machata static inline void tcf_qevent_destroy(struct tcf_qevent *qe, struct Qdisc *sch) 6293625750fSPetr Machata { 6303625750fSPetr Machata } 6313625750fSPetr Machata 6323625750fSPetr Machata static inline int tcf_qevent_validate_change(struct tcf_qevent *qe, struct nlattr *block_index_attr, 6333625750fSPetr Machata struct netlink_ext_ack *extack) 6343625750fSPetr Machata { 6353625750fSPetr Machata return 0; 6363625750fSPetr Machata } 6373625750fSPetr Machata 6383625750fSPetr Machata static inline struct sk_buff * 6393625750fSPetr Machata tcf_qevent_handle(struct tcf_qevent *qe, struct Qdisc *sch, struct sk_buff *skb, 64055f656cdSPetr Machata struct sk_buff **to_free, int *ret) 6413625750fSPetr Machata { 6423625750fSPetr Machata return skb; 6433625750fSPetr Machata } 6443625750fSPetr Machata 6453625750fSPetr Machata static inline int tcf_qevent_dump(struct sk_buff *skb, int attr_name, struct tcf_qevent *qe) 6463625750fSPetr Machata { 6473625750fSPetr Machata return 0; 6483625750fSPetr Machata } 6493625750fSPetr Machata #endif 6503625750fSPetr Machata 651a1b7c5fdSJohn Fastabend struct tc_cls_u32_knode { 652a1b7c5fdSJohn Fastabend struct tcf_exts *exts; 653068ceb35SJakub Kicinski struct tcf_result *res; 654e014860eSJohn Fastabend struct tc_u32_sel *sel; 655a1b7c5fdSJohn Fastabend u32 handle; 656a1b7c5fdSJohn Fastabend u32 val; 657a1b7c5fdSJohn Fastabend u32 mask; 658a1b7c5fdSJohn Fastabend u32 link_handle; 659e014860eSJohn Fastabend u8 fshift; 660a1b7c5fdSJohn Fastabend }; 661a1b7c5fdSJohn Fastabend 662a1b7c5fdSJohn Fastabend struct tc_cls_u32_hnode { 663a1b7c5fdSJohn Fastabend u32 handle; 664a1b7c5fdSJohn Fastabend u32 prio; 665a1b7c5fdSJohn Fastabend unsigned int divisor; 666a1b7c5fdSJohn Fastabend }; 667a1b7c5fdSJohn Fastabend 668a1b7c5fdSJohn Fastabend enum tc_clsu32_command { 669a1b7c5fdSJohn Fastabend TC_CLSU32_NEW_KNODE, 670a1b7c5fdSJohn Fastabend TC_CLSU32_REPLACE_KNODE, 671a1b7c5fdSJohn Fastabend TC_CLSU32_DELETE_KNODE, 672a1b7c5fdSJohn Fastabend TC_CLSU32_NEW_HNODE, 673a1b7c5fdSJohn Fastabend TC_CLSU32_REPLACE_HNODE, 674a1b7c5fdSJohn Fastabend TC_CLSU32_DELETE_HNODE, 675a1b7c5fdSJohn Fastabend }; 676a1b7c5fdSJohn Fastabend 677a1b7c5fdSJohn Fastabend struct tc_cls_u32_offload { 678f9e30088SPablo Neira Ayuso struct flow_cls_common_offload common; 679a1b7c5fdSJohn Fastabend /* knode values */ 680a1b7c5fdSJohn Fastabend enum tc_clsu32_command command; 681a1b7c5fdSJohn Fastabend union { 682a1b7c5fdSJohn Fastabend struct tc_cls_u32_knode knode; 683a1b7c5fdSJohn Fastabend struct tc_cls_u32_hnode hnode; 684a1b7c5fdSJohn Fastabend }; 685a1b7c5fdSJohn Fastabend }; 686a1b7c5fdSJohn Fastabend 6877b06e8aeSJiri Pirko static inline bool tc_can_offload(const struct net_device *dev) 6886843e7a2SJohn Fastabend { 68970b5aee4SJiri Pirko return dev->features & NETIF_F_HW_TC; 6906843e7a2SJohn Fastabend } 6916843e7a2SJohn Fastabend 692f9eda14fSQuentin Monnet static inline bool tc_can_offload_extack(const struct net_device *dev, 693f9eda14fSQuentin Monnet struct netlink_ext_ack *extack) 694f9eda14fSQuentin Monnet { 695f9eda14fSQuentin Monnet bool can = tc_can_offload(dev); 696f9eda14fSQuentin Monnet 697f9eda14fSQuentin Monnet if (!can) 698f9eda14fSQuentin Monnet NL_SET_ERR_MSG(extack, "TC offload is disabled on net device"); 699f9eda14fSQuentin Monnet 700f9eda14fSQuentin Monnet return can; 701f9eda14fSQuentin Monnet } 702f9eda14fSQuentin Monnet 703878db9f0SJakub Kicinski static inline bool 704878db9f0SJakub Kicinski tc_cls_can_offload_and_chain0(const struct net_device *dev, 705f9e30088SPablo Neira Ayuso struct flow_cls_common_offload *common) 706878db9f0SJakub Kicinski { 707878db9f0SJakub Kicinski if (!tc_can_offload_extack(dev, common->extack)) 708878db9f0SJakub Kicinski return false; 709878db9f0SJakub Kicinski if (common->chain_index) { 710878db9f0SJakub Kicinski NL_SET_ERR_MSG(common->extack, 711878db9f0SJakub Kicinski "Driver supports only offload of chain 0"); 712878db9f0SJakub Kicinski return false; 713878db9f0SJakub Kicinski } 714878db9f0SJakub Kicinski return true; 715878db9f0SJakub Kicinski } 716878db9f0SJakub Kicinski 71755330f05SHadar Hen Zion static inline bool tc_skip_hw(u32 flags) 71855330f05SHadar Hen Zion { 71955330f05SHadar Hen Zion return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false; 72055330f05SHadar Hen Zion } 72155330f05SHadar Hen Zion 722d34e3e18SSamudrala, Sridhar static inline bool tc_skip_sw(u32 flags) 723d34e3e18SSamudrala, Sridhar { 724d34e3e18SSamudrala, Sridhar return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; 725d34e3e18SSamudrala, Sridhar } 726d34e3e18SSamudrala, Sridhar 727d34e3e18SSamudrala, Sridhar /* SKIP_HW and SKIP_SW are mutually exclusive flags. */ 728d34e3e18SSamudrala, Sridhar static inline bool tc_flags_valid(u32 flags) 729d34e3e18SSamudrala, Sridhar { 73081c7288bSMarcelo Ricardo Leitner if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW | 73181c7288bSMarcelo Ricardo Leitner TCA_CLS_FLAGS_VERBOSE)) 732d34e3e18SSamudrala, Sridhar return false; 733d34e3e18SSamudrala, Sridhar 73481c7288bSMarcelo Ricardo Leitner flags &= TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW; 735d34e3e18SSamudrala, Sridhar if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) 736d34e3e18SSamudrala, Sridhar return false; 737d34e3e18SSamudrala, Sridhar 738d34e3e18SSamudrala, Sridhar return true; 739d34e3e18SSamudrala, Sridhar } 740d34e3e18SSamudrala, Sridhar 741e696028aSOr Gerlitz static inline bool tc_in_hw(u32 flags) 742e696028aSOr Gerlitz { 743e696028aSOr Gerlitz return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false; 744e696028aSOr Gerlitz } 745e696028aSOr Gerlitz 74634832e1cSJakub Kicinski static inline void 747f9e30088SPablo Neira Ayuso tc_cls_common_offload_init(struct flow_cls_common_offload *cls_common, 74834832e1cSJakub Kicinski const struct tcf_proto *tp, u32 flags, 74934832e1cSJakub Kicinski struct netlink_ext_ack *extack) 75034832e1cSJakub Kicinski { 75134832e1cSJakub Kicinski cls_common->chain_index = tp->chain->index; 75234832e1cSJakub Kicinski cls_common->protocol = tp->protocol; 753ef01adaeSPablo Neira Ayuso cls_common->prio = tp->prio >> 16; 75481c7288bSMarcelo Ricardo Leitner if (tc_skip_sw(flags) || flags & TCA_CLS_FLAGS_VERBOSE) 75534832e1cSJakub Kicinski cls_common->extack = extack; 75634832e1cSJakub Kicinski } 75734832e1cSJakub Kicinski 7589453d45eSVlad Buslov #if IS_ENABLED(CONFIG_NET_TC_SKB_EXT) 7599453d45eSVlad Buslov static inline struct tc_skb_ext *tc_skb_ext_alloc(struct sk_buff *skb) 7609453d45eSVlad Buslov { 7619453d45eSVlad Buslov struct tc_skb_ext *tc_skb_ext = skb_ext_add(skb, TC_SKB_EXT); 7629453d45eSVlad Buslov 7639453d45eSVlad Buslov if (tc_skb_ext) 7649453d45eSVlad Buslov memset(tc_skb_ext, 0, sizeof(*tc_skb_ext)); 7659453d45eSVlad Buslov return tc_skb_ext; 7669453d45eSVlad Buslov } 7679453d45eSVlad Buslov #endif 7689453d45eSVlad Buslov 769b87f7936SYotam Gigi enum tc_matchall_command { 770b87f7936SYotam Gigi TC_CLSMATCHALL_REPLACE, 771b87f7936SYotam Gigi TC_CLSMATCHALL_DESTROY, 772b7fe4ab8SPieter Jansen van Vuuren TC_CLSMATCHALL_STATS, 773b87f7936SYotam Gigi }; 774b87f7936SYotam Gigi 775b87f7936SYotam Gigi struct tc_cls_matchall_offload { 776f9e30088SPablo Neira Ayuso struct flow_cls_common_offload common; 777b87f7936SYotam Gigi enum tc_matchall_command command; 778f00cbf19SPieter Jansen van Vuuren struct flow_rule *rule; 779b7fe4ab8SPieter Jansen van Vuuren struct flow_stats stats; 780*5246c896SOz Shlomo bool use_act_stats; 781b87f7936SYotam Gigi unsigned long cookie; 782b87f7936SYotam Gigi }; 783b87f7936SYotam Gigi 784332ae8e2SJakub Kicinski enum tc_clsbpf_command { 785102740bdSJakub Kicinski TC_CLSBPF_OFFLOAD, 78668d64063SJakub Kicinski TC_CLSBPF_STATS, 787332ae8e2SJakub Kicinski }; 788332ae8e2SJakub Kicinski 789332ae8e2SJakub Kicinski struct tc_cls_bpf_offload { 790f9e30088SPablo Neira Ayuso struct flow_cls_common_offload common; 791332ae8e2SJakub Kicinski enum tc_clsbpf_command command; 792332ae8e2SJakub Kicinski struct tcf_exts *exts; 793332ae8e2SJakub Kicinski struct bpf_prog *prog; 794102740bdSJakub Kicinski struct bpf_prog *oldprog; 795332ae8e2SJakub Kicinski const char *name; 796332ae8e2SJakub Kicinski bool exts_integrated; 797332ae8e2SJakub Kicinski }; 798332ae8e2SJakub Kicinski 7991045ba77SJamal Hadi Salim /* This structure holds cookie structure that is passed from user 8001045ba77SJamal Hadi Salim * to the kernel for actions and classifiers 8011045ba77SJamal Hadi Salim */ 8021045ba77SJamal Hadi Salim struct tc_cookie { 8031045ba77SJamal Hadi Salim u8 *data; 8041045ba77SJamal Hadi Salim u32 len; 805eec94fdbSVlad Buslov struct rcu_head rcu; 8061045ba77SJamal Hadi Salim }; 807602f3bafSNogah Frankel 808f34b4aacSNogah Frankel struct tc_qopt_offload_stats { 80950dc9a85SAhmed S. Darwish struct gnet_stats_basic_sync *bstats; 810f34b4aacSNogah Frankel struct gnet_stats_queue *qstats; 811f34b4aacSNogah Frankel }; 812f34b4aacSNogah Frankel 813f971b132SJakub Kicinski enum tc_mq_command { 814f971b132SJakub Kicinski TC_MQ_CREATE, 815f971b132SJakub Kicinski TC_MQ_DESTROY, 81647c669a4SJakub Kicinski TC_MQ_STATS, 817d577a3d2SJakub Kicinski TC_MQ_GRAFT, 818d577a3d2SJakub Kicinski }; 819d577a3d2SJakub Kicinski 820d577a3d2SJakub Kicinski struct tc_mq_opt_offload_graft_params { 821d577a3d2SJakub Kicinski unsigned long queue; 822d577a3d2SJakub Kicinski u32 child_handle; 823f971b132SJakub Kicinski }; 824f971b132SJakub Kicinski 825f971b132SJakub Kicinski struct tc_mq_qopt_offload { 826f971b132SJakub Kicinski enum tc_mq_command command; 827f971b132SJakub Kicinski u32 handle; 828d577a3d2SJakub Kicinski union { 82947c669a4SJakub Kicinski struct tc_qopt_offload_stats stats; 830d577a3d2SJakub Kicinski struct tc_mq_opt_offload_graft_params graft_params; 831d577a3d2SJakub Kicinski }; 832f971b132SJakub Kicinski }; 833f971b132SJakub Kicinski 834d03b195bSMaxim Mikityanskiy enum tc_htb_command { 835d03b195bSMaxim Mikityanskiy /* Root */ 836d03b195bSMaxim Mikityanskiy TC_HTB_CREATE, /* Initialize HTB offload. */ 837d03b195bSMaxim Mikityanskiy TC_HTB_DESTROY, /* Destroy HTB offload. */ 838d03b195bSMaxim Mikityanskiy 839d03b195bSMaxim Mikityanskiy /* Classes */ 840d03b195bSMaxim Mikityanskiy /* Allocate qid and create leaf. */ 841d03b195bSMaxim Mikityanskiy TC_HTB_LEAF_ALLOC_QUEUE, 842d03b195bSMaxim Mikityanskiy /* Convert leaf to inner, preserve and return qid, create new leaf. */ 843d03b195bSMaxim Mikityanskiy TC_HTB_LEAF_TO_INNER, 844d03b195bSMaxim Mikityanskiy /* Delete leaf, while siblings remain. */ 845d03b195bSMaxim Mikityanskiy TC_HTB_LEAF_DEL, 846d03b195bSMaxim Mikityanskiy /* Delete leaf, convert parent to leaf, preserving qid. */ 847d03b195bSMaxim Mikityanskiy TC_HTB_LEAF_DEL_LAST, 848d03b195bSMaxim Mikityanskiy /* TC_HTB_LEAF_DEL_LAST, but delete driver data on hardware errors. */ 849d03b195bSMaxim Mikityanskiy TC_HTB_LEAF_DEL_LAST_FORCE, 850d03b195bSMaxim Mikityanskiy /* Modify parameters of a node. */ 851d03b195bSMaxim Mikityanskiy TC_HTB_NODE_MODIFY, 852d03b195bSMaxim Mikityanskiy 853d03b195bSMaxim Mikityanskiy /* Class qdisc */ 854d03b195bSMaxim Mikityanskiy TC_HTB_LEAF_QUERY_QUEUE, /* Query qid by classid. */ 855d03b195bSMaxim Mikityanskiy }; 856d03b195bSMaxim Mikityanskiy 857d03b195bSMaxim Mikityanskiy struct tc_htb_qopt_offload { 858d03b195bSMaxim Mikityanskiy struct netlink_ext_ack *extack; 859d03b195bSMaxim Mikityanskiy enum tc_htb_command command; 860d03b195bSMaxim Mikityanskiy u32 parent_classid; 861ca49bfd9SMaxim Mikityanskiy u16 classid; 862d03b195bSMaxim Mikityanskiy u16 qid; 863d03b195bSMaxim Mikityanskiy u64 rate; 864d03b195bSMaxim Mikityanskiy u64 ceil; 865d03b195bSMaxim Mikityanskiy }; 866d03b195bSMaxim Mikityanskiy 867d03b195bSMaxim Mikityanskiy #define TC_HTB_CLASSID_ROOT U32_MAX 868d03b195bSMaxim Mikityanskiy 869602f3bafSNogah Frankel enum tc_red_command { 870602f3bafSNogah Frankel TC_RED_REPLACE, 871602f3bafSNogah Frankel TC_RED_DESTROY, 872602f3bafSNogah Frankel TC_RED_STATS, 873602f3bafSNogah Frankel TC_RED_XSTATS, 874bf2a752bSJakub Kicinski TC_RED_GRAFT, 875602f3bafSNogah Frankel }; 876602f3bafSNogah Frankel 877602f3bafSNogah Frankel struct tc_red_qopt_offload_params { 878602f3bafSNogah Frankel u32 min; 879602f3bafSNogah Frankel u32 max; 880602f3bafSNogah Frankel u32 probability; 881c0b7490bSJakub Kicinski u32 limit; 882602f3bafSNogah Frankel bool is_ecn; 883190852a5SJakub Kicinski bool is_harddrop; 8840a7fad23SPetr Machata bool is_nodrop; 885416ef9b1SJakub Kicinski struct gnet_stats_queue *qstats; 886602f3bafSNogah Frankel }; 887602f3bafSNogah Frankel 888602f3bafSNogah Frankel struct tc_red_qopt_offload { 889602f3bafSNogah Frankel enum tc_red_command command; 890602f3bafSNogah Frankel u32 handle; 891602f3bafSNogah Frankel u32 parent; 892602f3bafSNogah Frankel union { 893602f3bafSNogah Frankel struct tc_red_qopt_offload_params set; 894f34b4aacSNogah Frankel struct tc_qopt_offload_stats stats; 895602f3bafSNogah Frankel struct red_stats *xstats; 896bf2a752bSJakub Kicinski u32 child_handle; 897602f3bafSNogah Frankel }; 898602f3bafSNogah Frankel }; 899602f3bafSNogah Frankel 900890d8d23SJakub Kicinski enum tc_gred_command { 901890d8d23SJakub Kicinski TC_GRED_REPLACE, 902890d8d23SJakub Kicinski TC_GRED_DESTROY, 903e49efd52SJakub Kicinski TC_GRED_STATS, 904890d8d23SJakub Kicinski }; 905890d8d23SJakub Kicinski 906890d8d23SJakub Kicinski struct tc_gred_vq_qopt_offload_params { 907890d8d23SJakub Kicinski bool present; 908890d8d23SJakub Kicinski u32 limit; 909890d8d23SJakub Kicinski u32 prio; 910890d8d23SJakub Kicinski u32 min; 911890d8d23SJakub Kicinski u32 max; 912890d8d23SJakub Kicinski bool is_ecn; 913890d8d23SJakub Kicinski bool is_harddrop; 914890d8d23SJakub Kicinski u32 probability; 915890d8d23SJakub Kicinski /* Only need backlog, see struct tc_prio_qopt_offload_params */ 916890d8d23SJakub Kicinski u32 *backlog; 917890d8d23SJakub Kicinski }; 918890d8d23SJakub Kicinski 919890d8d23SJakub Kicinski struct tc_gred_qopt_offload_params { 920890d8d23SJakub Kicinski bool grio_on; 921890d8d23SJakub Kicinski bool wred_on; 922890d8d23SJakub Kicinski unsigned int dp_cnt; 923890d8d23SJakub Kicinski unsigned int dp_def; 924890d8d23SJakub Kicinski struct gnet_stats_queue *qstats; 925890d8d23SJakub Kicinski struct tc_gred_vq_qopt_offload_params tab[MAX_DPs]; 926890d8d23SJakub Kicinski }; 927890d8d23SJakub Kicinski 928e49efd52SJakub Kicinski struct tc_gred_qopt_offload_stats { 92950dc9a85SAhmed S. Darwish struct gnet_stats_basic_sync bstats[MAX_DPs]; 930e49efd52SJakub Kicinski struct gnet_stats_queue qstats[MAX_DPs]; 931e49efd52SJakub Kicinski struct red_stats *xstats[MAX_DPs]; 932e49efd52SJakub Kicinski }; 933e49efd52SJakub Kicinski 934890d8d23SJakub Kicinski struct tc_gred_qopt_offload { 935890d8d23SJakub Kicinski enum tc_gred_command command; 936890d8d23SJakub Kicinski u32 handle; 937890d8d23SJakub Kicinski u32 parent; 938890d8d23SJakub Kicinski union { 939890d8d23SJakub Kicinski struct tc_gred_qopt_offload_params set; 940e49efd52SJakub Kicinski struct tc_gred_qopt_offload_stats stats; 941890d8d23SJakub Kicinski }; 942890d8d23SJakub Kicinski }; 943890d8d23SJakub Kicinski 9447fdb61b4SNogah Frankel enum tc_prio_command { 9457fdb61b4SNogah Frankel TC_PRIO_REPLACE, 9467fdb61b4SNogah Frankel TC_PRIO_DESTROY, 9477fdb61b4SNogah Frankel TC_PRIO_STATS, 948b9c7a7acSNogah Frankel TC_PRIO_GRAFT, 9497fdb61b4SNogah Frankel }; 9507fdb61b4SNogah Frankel 9517fdb61b4SNogah Frankel struct tc_prio_qopt_offload_params { 9527fdb61b4SNogah Frankel int bands; 9537fdb61b4SNogah Frankel u8 priomap[TC_PRIO_MAX + 1]; 9549586a992SPetr Machata /* At the point of un-offloading the Qdisc, the reported backlog and 9559586a992SPetr Machata * qlen need to be reduced by the portion that is in HW. 9567fdb61b4SNogah Frankel */ 9577fdb61b4SNogah Frankel struct gnet_stats_queue *qstats; 9587fdb61b4SNogah Frankel }; 9597fdb61b4SNogah Frankel 960b9c7a7acSNogah Frankel struct tc_prio_qopt_offload_graft_params { 961b9c7a7acSNogah Frankel u8 band; 962b9c7a7acSNogah Frankel u32 child_handle; 963b9c7a7acSNogah Frankel }; 964b9c7a7acSNogah Frankel 9657fdb61b4SNogah Frankel struct tc_prio_qopt_offload { 9667fdb61b4SNogah Frankel enum tc_prio_command command; 9677fdb61b4SNogah Frankel u32 handle; 9687fdb61b4SNogah Frankel u32 parent; 9697fdb61b4SNogah Frankel union { 9707fdb61b4SNogah Frankel struct tc_prio_qopt_offload_params replace_params; 9717fdb61b4SNogah Frankel struct tc_qopt_offload_stats stats; 972b9c7a7acSNogah Frankel struct tc_prio_qopt_offload_graft_params graft_params; 9737fdb61b4SNogah Frankel }; 9747fdb61b4SNogah Frankel }; 975b9c7a7acSNogah Frankel 97698b0e5f6SJakub Kicinski enum tc_root_command { 97798b0e5f6SJakub Kicinski TC_ROOT_GRAFT, 97898b0e5f6SJakub Kicinski }; 97998b0e5f6SJakub Kicinski 98098b0e5f6SJakub Kicinski struct tc_root_qopt_offload { 98198b0e5f6SJakub Kicinski enum tc_root_command command; 98298b0e5f6SJakub Kicinski u32 handle; 98398b0e5f6SJakub Kicinski bool ingress; 98498b0e5f6SJakub Kicinski }; 98598b0e5f6SJakub Kicinski 986d35eb52bSPetr Machata enum tc_ets_command { 987d35eb52bSPetr Machata TC_ETS_REPLACE, 988d35eb52bSPetr Machata TC_ETS_DESTROY, 989d35eb52bSPetr Machata TC_ETS_STATS, 990d35eb52bSPetr Machata TC_ETS_GRAFT, 991d35eb52bSPetr Machata }; 992d35eb52bSPetr Machata 993d35eb52bSPetr Machata struct tc_ets_qopt_offload_replace_params { 994d35eb52bSPetr Machata unsigned int bands; 995d35eb52bSPetr Machata u8 priomap[TC_PRIO_MAX + 1]; 996d35eb52bSPetr Machata unsigned int quanta[TCQ_ETS_MAX_BANDS]; /* 0 for strict bands. */ 997d35eb52bSPetr Machata unsigned int weights[TCQ_ETS_MAX_BANDS]; 998d35eb52bSPetr Machata struct gnet_stats_queue *qstats; 999d35eb52bSPetr Machata }; 1000d35eb52bSPetr Machata 1001d35eb52bSPetr Machata struct tc_ets_qopt_offload_graft_params { 1002d35eb52bSPetr Machata u8 band; 1003d35eb52bSPetr Machata u32 child_handle; 1004d35eb52bSPetr Machata }; 1005d35eb52bSPetr Machata 1006d35eb52bSPetr Machata struct tc_ets_qopt_offload { 1007d35eb52bSPetr Machata enum tc_ets_command command; 1008d35eb52bSPetr Machata u32 handle; 1009d35eb52bSPetr Machata u32 parent; 1010d35eb52bSPetr Machata union { 1011d35eb52bSPetr Machata struct tc_ets_qopt_offload_replace_params replace_params; 1012d35eb52bSPetr Machata struct tc_qopt_offload_stats stats; 1013d35eb52bSPetr Machata struct tc_ets_qopt_offload_graft_params graft_params; 1014d35eb52bSPetr Machata }; 1015d35eb52bSPetr Machata }; 1016d35eb52bSPetr Machata 1017ef6aadccSPetr Machata enum tc_tbf_command { 1018ef6aadccSPetr Machata TC_TBF_REPLACE, 1019ef6aadccSPetr Machata TC_TBF_DESTROY, 1020ef6aadccSPetr Machata TC_TBF_STATS, 10216b3efbfaSPetr Machata TC_TBF_GRAFT, 1022ef6aadccSPetr Machata }; 1023ef6aadccSPetr Machata 1024ef6aadccSPetr Machata struct tc_tbf_qopt_offload_replace_params { 1025ef6aadccSPetr Machata struct psched_ratecfg rate; 1026ef6aadccSPetr Machata u32 max_size; 1027ef6aadccSPetr Machata struct gnet_stats_queue *qstats; 1028ef6aadccSPetr Machata }; 1029ef6aadccSPetr Machata 1030ef6aadccSPetr Machata struct tc_tbf_qopt_offload { 1031ef6aadccSPetr Machata enum tc_tbf_command command; 1032ef6aadccSPetr Machata u32 handle; 1033ef6aadccSPetr Machata u32 parent; 1034ef6aadccSPetr Machata union { 1035ef6aadccSPetr Machata struct tc_tbf_qopt_offload_replace_params replace_params; 1036ef6aadccSPetr Machata struct tc_qopt_offload_stats stats; 10376b3efbfaSPetr Machata u32 child_handle; 1038ef6aadccSPetr Machata }; 1039ef6aadccSPetr Machata }; 1040ef6aadccSPetr Machata 1041aaca9408SPetr Machata enum tc_fifo_command { 1042aaca9408SPetr Machata TC_FIFO_REPLACE, 1043aaca9408SPetr Machata TC_FIFO_DESTROY, 1044aaca9408SPetr Machata TC_FIFO_STATS, 1045aaca9408SPetr Machata }; 1046aaca9408SPetr Machata 1047aaca9408SPetr Machata struct tc_fifo_qopt_offload { 1048aaca9408SPetr Machata enum tc_fifo_command command; 1049aaca9408SPetr Machata u32 handle; 1050aaca9408SPetr Machata u32 parent; 1051aaca9408SPetr Machata union { 1052aaca9408SPetr Machata struct tc_qopt_offload_stats stats; 1053aaca9408SPetr Machata }; 1054aaca9408SPetr Machata }; 1055aaca9408SPetr Machata 105635d39fecSPaul Blakey #ifdef CONFIG_NET_CLS_ACT 105735d39fecSPaul Blakey DECLARE_STATIC_KEY_FALSE(tc_skb_ext_tc); 105835d39fecSPaul Blakey void tc_skb_ext_tc_enable(void); 105935d39fecSPaul Blakey void tc_skb_ext_tc_disable(void); 106035d39fecSPaul Blakey #define tc_skb_ext_tc_enabled() static_branch_unlikely(&tc_skb_ext_tc) 106135d39fecSPaul Blakey #else /* CONFIG_NET_CLS_ACT */ 106235d39fecSPaul Blakey static inline void tc_skb_ext_tc_enable(void) { } 106335d39fecSPaul Blakey static inline void tc_skb_ext_tc_disable(void) { } 106435d39fecSPaul Blakey #define tc_skb_ext_tc_enabled() false 106535d39fecSPaul Blakey #endif 106635d39fecSPaul Blakey 10671da177e4SLinus Torvalds #endif 1068