11da177e4SLinus Torvalds #ifndef __NET_PKT_CLS_H 21da177e4SLinus Torvalds #define __NET_PKT_CLS_H 31da177e4SLinus Torvalds 41da177e4SLinus Torvalds #include <linux/pkt_cls.h> 51da177e4SLinus Torvalds #include <net/sch_generic.h> 61da177e4SLinus Torvalds #include <net/act_api.h> 71da177e4SLinus Torvalds 81da177e4SLinus Torvalds /* Basic packet classifier frontend definitions. */ 91da177e4SLinus Torvalds 10fd2c3ef7SEric Dumazet struct tcf_walker { 111da177e4SLinus Torvalds int stop; 121da177e4SLinus Torvalds int skip; 131da177e4SLinus Torvalds int count; 141da177e4SLinus Torvalds int (*fn)(struct tcf_proto *, unsigned long node, struct tcf_walker *); 151da177e4SLinus Torvalds }; 161da177e4SLinus Torvalds 175c15257fSJoe Perches int register_tcf_proto_ops(struct tcf_proto_ops *ops); 185c15257fSJoe Perches int unregister_tcf_proto_ops(struct tcf_proto_ops *ops); 191da177e4SLinus Torvalds 201da177e4SLinus Torvalds static inline unsigned long 211da177e4SLinus Torvalds __cls_set_class(unsigned long *clp, unsigned long cl) 221da177e4SLinus Torvalds { 23a0efb80cSWANG Cong return xchg(clp, cl); 241da177e4SLinus Torvalds } 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds static inline unsigned long 271da177e4SLinus Torvalds cls_set_class(struct tcf_proto *tp, unsigned long *clp, 281da177e4SLinus Torvalds unsigned long cl) 291da177e4SLinus Torvalds { 301da177e4SLinus Torvalds unsigned long old_cl; 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds tcf_tree_lock(tp); 331da177e4SLinus Torvalds old_cl = __cls_set_class(clp, cl); 341da177e4SLinus Torvalds tcf_tree_unlock(tp); 351da177e4SLinus Torvalds 361da177e4SLinus Torvalds return old_cl; 371da177e4SLinus Torvalds } 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds static inline void 401da177e4SLinus Torvalds tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) 411da177e4SLinus Torvalds { 421da177e4SLinus Torvalds unsigned long cl; 431da177e4SLinus Torvalds 441da177e4SLinus Torvalds cl = tp->q->ops->cl_ops->bind_tcf(tp->q, base, r->classid); 451da177e4SLinus Torvalds cl = cls_set_class(tp, &r->class, cl); 461da177e4SLinus Torvalds if (cl) 471da177e4SLinus Torvalds tp->q->ops->cl_ops->unbind_tcf(tp->q, cl); 481da177e4SLinus Torvalds } 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds static inline void 511da177e4SLinus Torvalds tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) 521da177e4SLinus Torvalds { 531da177e4SLinus Torvalds unsigned long cl; 541da177e4SLinus Torvalds 551da177e4SLinus Torvalds if ((cl = __cls_set_class(&r->class, 0)) != 0) 561da177e4SLinus Torvalds tp->q->ops->cl_ops->unbind_tcf(tp->q, cl); 571da177e4SLinus Torvalds } 581da177e4SLinus Torvalds 59fd2c3ef7SEric Dumazet struct tcf_exts { 601da177e4SLinus Torvalds #ifdef CONFIG_NET_CLS_ACT 6133be6271SWANG Cong __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ 6233be6271SWANG Cong struct list_head actions; 631da177e4SLinus Torvalds #endif 641da177e4SLinus Torvalds /* Map to export classifier specific extension TLV types to the 651da177e4SLinus Torvalds * generic extensions API. Unsupported extensions must be set to 0. 661da177e4SLinus Torvalds */ 671da177e4SLinus Torvalds int action; 681da177e4SLinus Torvalds int police; 691da177e4SLinus Torvalds }; 701da177e4SLinus Torvalds 715da57f42SWANG Cong static inline void tcf_exts_init(struct tcf_exts *exts, int action, int police) 7233be6271SWANG Cong { 7333be6271SWANG Cong #ifdef CONFIG_NET_CLS_ACT 745da57f42SWANG Cong exts->type = 0; 7533be6271SWANG Cong INIT_LIST_HEAD(&exts->actions); 7633be6271SWANG Cong #endif 775da57f42SWANG Cong exts->action = action; 785da57f42SWANG Cong exts->police = police; 7933be6271SWANG Cong } 8033be6271SWANG Cong 811da177e4SLinus Torvalds /** 821da177e4SLinus Torvalds * tcf_exts_is_predicative - check if a predicative extension is present 831da177e4SLinus Torvalds * @exts: tc filter extensions handle 841da177e4SLinus Torvalds * 851da177e4SLinus Torvalds * Returns 1 if a predicative extension is present, i.e. an extension which 861da177e4SLinus Torvalds * might cause further actions and thus overrule the regular tcf_result. 871da177e4SLinus Torvalds */ 881da177e4SLinus Torvalds static inline int 891da177e4SLinus Torvalds tcf_exts_is_predicative(struct tcf_exts *exts) 901da177e4SLinus Torvalds { 911da177e4SLinus Torvalds #ifdef CONFIG_NET_CLS_ACT 9233be6271SWANG Cong return !list_empty(&exts->actions); 931da177e4SLinus Torvalds #else 941da177e4SLinus Torvalds return 0; 951da177e4SLinus Torvalds #endif 961da177e4SLinus Torvalds } 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds /** 991da177e4SLinus Torvalds * tcf_exts_is_available - check if at least one extension is present 1001da177e4SLinus Torvalds * @exts: tc filter extensions handle 1011da177e4SLinus Torvalds * 1021da177e4SLinus Torvalds * Returns 1 if at least one extension is present. 1031da177e4SLinus Torvalds */ 1041da177e4SLinus Torvalds static inline int 1051da177e4SLinus Torvalds tcf_exts_is_available(struct tcf_exts *exts) 1061da177e4SLinus Torvalds { 1071da177e4SLinus Torvalds /* All non-predicative extensions must be added here. */ 1081da177e4SLinus Torvalds return tcf_exts_is_predicative(exts); 1091da177e4SLinus Torvalds } 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds /** 1121da177e4SLinus Torvalds * tcf_exts_exec - execute tc filter extensions 1131da177e4SLinus Torvalds * @skb: socket buffer 1141da177e4SLinus Torvalds * @exts: tc filter extensions handle 1151da177e4SLinus Torvalds * @res: desired result 1161da177e4SLinus Torvalds * 1171da177e4SLinus Torvalds * Executes all configured extensions. Returns 0 on a normal execution, 1181da177e4SLinus Torvalds * a negative number if the filter must be considered unmatched or 1191da177e4SLinus Torvalds * a positive action code (TC_ACT_*) which must be returned to the 1201da177e4SLinus Torvalds * underlying layer. 1211da177e4SLinus Torvalds */ 1221da177e4SLinus Torvalds static inline int 1231da177e4SLinus Torvalds tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, 1241da177e4SLinus Torvalds struct tcf_result *res) 1251da177e4SLinus Torvalds { 1261da177e4SLinus Torvalds #ifdef CONFIG_NET_CLS_ACT 12733be6271SWANG Cong if (!list_empty(&exts->actions)) 12833be6271SWANG Cong return tcf_action_exec(skb, &exts->actions, res); 1291da177e4SLinus Torvalds #endif 1301da177e4SLinus Torvalds return 0; 1311da177e4SLinus Torvalds } 1321da177e4SLinus Torvalds 1332734437eSWANG Cong #ifdef CONFIG_NET_CLS_ACT 1342734437eSWANG Cong 1352734437eSWANG Cong #define tc_no_actions(_exts) \ 1362734437eSWANG Cong (list_empty(&(_exts)->actions)) 1372734437eSWANG Cong 1382734437eSWANG Cong #define tc_for_each_action(_a, _exts) \ 1392734437eSWANG Cong list_for_each_entry(_a, &(_exts)->actions, list) 1402734437eSWANG Cong 1412734437eSWANG Cong #define tc_single_action(_exts) \ 1422734437eSWANG Cong (list_is_singular(&(_exts)->actions)) 1432734437eSWANG Cong 1442734437eSWANG Cong #else /* CONFIG_NET_CLS_ACT */ 1452734437eSWANG Cong 1462734437eSWANG Cong #define tc_no_actions(_exts) true 1472734437eSWANG Cong #define tc_for_each_action(_a, _exts) while ((void)(_a), 0) 1482734437eSWANG Cong #define tc_single_action(_exts) false 1492734437eSWANG Cong 1502734437eSWANG Cong #endif /* CONFIG_NET_CLS_ACT */ 1512734437eSWANG Cong 1525c15257fSJoe Perches int tcf_exts_validate(struct net *net, struct tcf_proto *tp, 153c1b52739SBenjamin LaHaise struct nlattr **tb, struct nlattr *rate_tlv, 1542f7ef2f8SCong Wang struct tcf_exts *exts, bool ovr); 15518d0264fSWANG Cong void tcf_exts_destroy(struct tcf_exts *exts); 1565c15257fSJoe Perches void tcf_exts_change(struct tcf_proto *tp, struct tcf_exts *dst, 1571da177e4SLinus Torvalds struct tcf_exts *src); 1585da57f42SWANG Cong int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); 1595da57f42SWANG Cong int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvalds /** 1621da177e4SLinus Torvalds * struct tcf_pkt_info - packet information 1631da177e4SLinus Torvalds */ 164fd2c3ef7SEric Dumazet struct tcf_pkt_info { 1651da177e4SLinus Torvalds unsigned char * ptr; 1661da177e4SLinus Torvalds int nexthdr; 1671da177e4SLinus Torvalds }; 1681da177e4SLinus Torvalds 1691da177e4SLinus Torvalds #ifdef CONFIG_NET_EMATCH 1701da177e4SLinus Torvalds 1711da177e4SLinus Torvalds struct tcf_ematch_ops; 1721da177e4SLinus Torvalds 1731da177e4SLinus Torvalds /** 1741da177e4SLinus Torvalds * struct tcf_ematch - extended match (ematch) 1751da177e4SLinus Torvalds * 1761da177e4SLinus Torvalds * @matchid: identifier to allow userspace to reidentify a match 1771da177e4SLinus Torvalds * @flags: flags specifying attributes and the relation to other matches 1781da177e4SLinus Torvalds * @ops: the operations lookup table of the corresponding ematch module 1791da177e4SLinus Torvalds * @datalen: length of the ematch specific configuration data 1801da177e4SLinus Torvalds * @data: ematch specific data 1811da177e4SLinus Torvalds */ 182fd2c3ef7SEric Dumazet struct tcf_ematch { 1831da177e4SLinus Torvalds struct tcf_ematch_ops * ops; 1841da177e4SLinus Torvalds unsigned long data; 1851da177e4SLinus Torvalds unsigned int datalen; 1861da177e4SLinus Torvalds u16 matchid; 1871da177e4SLinus Torvalds u16 flags; 18882a470f1SJohn Fastabend struct net *net; 1891da177e4SLinus Torvalds }; 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds static inline int tcf_em_is_container(struct tcf_ematch *em) 1921da177e4SLinus Torvalds { 1931da177e4SLinus Torvalds return !em->ops; 1941da177e4SLinus Torvalds } 1951da177e4SLinus Torvalds 1961da177e4SLinus Torvalds static inline int tcf_em_is_simple(struct tcf_ematch *em) 1971da177e4SLinus Torvalds { 1981da177e4SLinus Torvalds return em->flags & TCF_EM_SIMPLE; 1991da177e4SLinus Torvalds } 2001da177e4SLinus Torvalds 2011da177e4SLinus Torvalds static inline int tcf_em_is_inverted(struct tcf_ematch *em) 2021da177e4SLinus Torvalds { 2031da177e4SLinus Torvalds return em->flags & TCF_EM_INVERT; 2041da177e4SLinus Torvalds } 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds static inline int tcf_em_last_match(struct tcf_ematch *em) 2071da177e4SLinus Torvalds { 2081da177e4SLinus Torvalds return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; 2091da177e4SLinus Torvalds } 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds static inline int tcf_em_early_end(struct tcf_ematch *em, int result) 2121da177e4SLinus Torvalds { 2131da177e4SLinus Torvalds if (tcf_em_last_match(em)) 2141da177e4SLinus Torvalds return 1; 2151da177e4SLinus Torvalds 2161da177e4SLinus Torvalds if (result == 0 && em->flags & TCF_EM_REL_AND) 2171da177e4SLinus Torvalds return 1; 2181da177e4SLinus Torvalds 2191da177e4SLinus Torvalds if (result != 0 && em->flags & TCF_EM_REL_OR) 2201da177e4SLinus Torvalds return 1; 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds return 0; 2231da177e4SLinus Torvalds } 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds /** 2261da177e4SLinus Torvalds * struct tcf_ematch_tree - ematch tree handle 2271da177e4SLinus Torvalds * 2281da177e4SLinus Torvalds * @hdr: ematch tree header supplied by userspace 2291da177e4SLinus Torvalds * @matches: array of ematches 2301da177e4SLinus Torvalds */ 231fd2c3ef7SEric Dumazet struct tcf_ematch_tree { 2321da177e4SLinus Torvalds struct tcf_ematch_tree_hdr hdr; 2331da177e4SLinus Torvalds struct tcf_ematch * matches; 2341da177e4SLinus Torvalds 2351da177e4SLinus Torvalds }; 2361da177e4SLinus Torvalds 2371da177e4SLinus Torvalds /** 2381da177e4SLinus Torvalds * struct tcf_ematch_ops - ematch module operations 2391da177e4SLinus Torvalds * 2401da177e4SLinus Torvalds * @kind: identifier (kind) of this ematch module 2411da177e4SLinus Torvalds * @datalen: length of expected configuration data (optional) 2421da177e4SLinus Torvalds * @change: called during validation (optional) 2431da177e4SLinus Torvalds * @match: called during ematch tree evaluation, must return 1/0 2441da177e4SLinus Torvalds * @destroy: called during destroyage (optional) 2451da177e4SLinus Torvalds * @dump: called during dumping process (optional) 2461da177e4SLinus Torvalds * @owner: owner, must be set to THIS_MODULE 2471da177e4SLinus Torvalds * @link: link to previous/next ematch module (internal use) 2481da177e4SLinus Torvalds */ 249fd2c3ef7SEric Dumazet struct tcf_ematch_ops { 2501da177e4SLinus Torvalds int kind; 2511da177e4SLinus Torvalds int datalen; 25282a470f1SJohn Fastabend int (*change)(struct net *net, void *, 2531da177e4SLinus Torvalds int, struct tcf_ematch *); 2541da177e4SLinus Torvalds int (*match)(struct sk_buff *, struct tcf_ematch *, 2551da177e4SLinus Torvalds struct tcf_pkt_info *); 25682a470f1SJohn Fastabend void (*destroy)(struct tcf_ematch *); 2571da177e4SLinus Torvalds int (*dump)(struct sk_buff *, struct tcf_ematch *); 2581da177e4SLinus Torvalds struct module *owner; 2591da177e4SLinus Torvalds struct list_head link; 2601da177e4SLinus Torvalds }; 2611da177e4SLinus Torvalds 2625c15257fSJoe Perches int tcf_em_register(struct tcf_ematch_ops *); 2635c15257fSJoe Perches void tcf_em_unregister(struct tcf_ematch_ops *); 2645c15257fSJoe Perches int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, 2651da177e4SLinus Torvalds struct tcf_ematch_tree *); 26682a470f1SJohn Fastabend void tcf_em_tree_destroy(struct tcf_ematch_tree *); 2675c15257fSJoe Perches int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); 2685c15257fSJoe Perches int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, 2691da177e4SLinus Torvalds struct tcf_pkt_info *); 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds /** 2721da177e4SLinus Torvalds * tcf_em_tree_change - replace ematch tree of a running classifier 2731da177e4SLinus Torvalds * 2741da177e4SLinus Torvalds * @tp: classifier kind handle 2751da177e4SLinus Torvalds * @dst: destination ematch tree variable 2761da177e4SLinus Torvalds * @src: source ematch tree (temporary tree from tcf_em_tree_validate) 2771da177e4SLinus Torvalds * 2781da177e4SLinus Torvalds * This functions replaces the ematch tree in @dst with the ematch 2791da177e4SLinus Torvalds * tree in @src. The classifier in charge of the ematch tree may be 2801da177e4SLinus Torvalds * running. 2811da177e4SLinus Torvalds */ 2821da177e4SLinus Torvalds static inline void tcf_em_tree_change(struct tcf_proto *tp, 2831da177e4SLinus Torvalds struct tcf_ematch_tree *dst, 2841da177e4SLinus Torvalds struct tcf_ematch_tree *src) 2851da177e4SLinus Torvalds { 2861da177e4SLinus Torvalds tcf_tree_lock(tp); 2871da177e4SLinus Torvalds memcpy(dst, src, sizeof(*dst)); 2881da177e4SLinus Torvalds tcf_tree_unlock(tp); 2891da177e4SLinus Torvalds } 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds /** 2921da177e4SLinus Torvalds * tcf_em_tree_match - evaulate an ematch tree 2931da177e4SLinus Torvalds * 2941da177e4SLinus Torvalds * @skb: socket buffer of the packet in question 2951da177e4SLinus Torvalds * @tree: ematch tree to be used for evaluation 2961da177e4SLinus Torvalds * @info: packet information examined by classifier 2971da177e4SLinus Torvalds * 2981da177e4SLinus Torvalds * This function matches @skb against the ematch tree in @tree by going 2991da177e4SLinus Torvalds * through all ematches respecting their logic relations returning 3001da177e4SLinus Torvalds * as soon as the result is obvious. 3011da177e4SLinus Torvalds * 3021da177e4SLinus Torvalds * Returns 1 if the ematch tree as-one matches, no ematches are configured 3031da177e4SLinus Torvalds * or ematch is not enabled in the kernel, otherwise 0 is returned. 3041da177e4SLinus Torvalds */ 3051da177e4SLinus Torvalds static inline int tcf_em_tree_match(struct sk_buff *skb, 3061da177e4SLinus Torvalds struct tcf_ematch_tree *tree, 3071da177e4SLinus Torvalds struct tcf_pkt_info *info) 3081da177e4SLinus Torvalds { 3091da177e4SLinus Torvalds if (tree->hdr.nmatches) 3101da177e4SLinus Torvalds return __tcf_em_tree_match(skb, tree, info); 3111da177e4SLinus Torvalds else 3121da177e4SLinus Torvalds return 1; 3131da177e4SLinus Torvalds } 3141da177e4SLinus Torvalds 315db3d99c0SPatrick McHardy #define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) 316db3d99c0SPatrick McHardy 3171da177e4SLinus Torvalds #else /* CONFIG_NET_EMATCH */ 3181da177e4SLinus Torvalds 319fd2c3ef7SEric Dumazet struct tcf_ematch_tree { 3201da177e4SLinus Torvalds }; 3211da177e4SLinus Torvalds 3221da177e4SLinus Torvalds #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) 32382a470f1SJohn Fastabend #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) 3241da177e4SLinus Torvalds #define tcf_em_tree_dump(skb, t, tlv) (0) 3251da177e4SLinus Torvalds #define tcf_em_tree_change(tp, dst, src) do { } while(0) 3261da177e4SLinus Torvalds #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds #endif /* CONFIG_NET_EMATCH */ 3291da177e4SLinus Torvalds 3301da177e4SLinus Torvalds static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) 3311da177e4SLinus Torvalds { 3321da177e4SLinus Torvalds switch (layer) { 3331da177e4SLinus Torvalds case TCF_LAYER_LINK: 3341da177e4SLinus Torvalds return skb->data; 3351da177e4SLinus Torvalds case TCF_LAYER_NETWORK: 336d56f90a7SArnaldo Carvalho de Melo return skb_network_header(skb); 3371da177e4SLinus Torvalds case TCF_LAYER_TRANSPORT: 3389c70220bSArnaldo Carvalho de Melo return skb_transport_header(skb); 3391da177e4SLinus Torvalds } 3401da177e4SLinus Torvalds 3411da177e4SLinus Torvalds return NULL; 3421da177e4SLinus Torvalds } 3431da177e4SLinus Torvalds 344eddc9ec5SArnaldo Carvalho de Melo static inline int tcf_valid_offset(const struct sk_buff *skb, 345eddc9ec5SArnaldo Carvalho de Melo const unsigned char *ptr, const int len) 3461da177e4SLinus Torvalds { 347da521b2cSDavid S. Miller return likely((ptr + len) <= skb_tail_pointer(skb) && 348da521b2cSDavid S. Miller ptr >= skb->head && 349da521b2cSDavid S. Miller (ptr <= (ptr + len))); 3501da177e4SLinus Torvalds } 3511da177e4SLinus Torvalds 3521da177e4SLinus Torvalds #ifdef CONFIG_NET_CLS_IND 3530eeb8ffcSDenis V. Lunev #include <net/net_namespace.h> 3540eeb8ffcSDenis V. Lunev 3551da177e4SLinus Torvalds static inline int 3562519a602SWANG Cong tcf_change_indev(struct net *net, struct nlattr *indev_tlv) 3571da177e4SLinus Torvalds { 3582519a602SWANG Cong char indev[IFNAMSIZ]; 359c01003c2SPatrick McHardy struct net_device *dev; 360c01003c2SPatrick McHardy 3612519a602SWANG Cong if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) 3622519a602SWANG Cong return -EINVAL; 3632519a602SWANG Cong dev = __dev_get_by_name(net, indev); 3642519a602SWANG Cong if (!dev) 3652519a602SWANG Cong return -ENODEV; 3662519a602SWANG Cong return dev->ifindex; 3671da177e4SLinus Torvalds } 3681da177e4SLinus Torvalds 3692519a602SWANG Cong static inline bool 3702519a602SWANG Cong tcf_match_indev(struct sk_buff *skb, int ifindex) 3712519a602SWANG Cong { 3722519a602SWANG Cong if (!ifindex) 3732519a602SWANG Cong return true; 3742519a602SWANG Cong if (!skb->skb_iif) 3752519a602SWANG Cong return false; 3762519a602SWANG Cong return ifindex == skb->skb_iif; 3771da177e4SLinus Torvalds } 3781da177e4SLinus Torvalds #endif /* CONFIG_NET_CLS_IND */ 3791da177e4SLinus Torvalds 380a1b7c5fdSJohn Fastabend struct tc_cls_u32_knode { 381a1b7c5fdSJohn Fastabend struct tcf_exts *exts; 382e014860eSJohn Fastabend struct tc_u32_sel *sel; 383a1b7c5fdSJohn Fastabend u32 handle; 384a1b7c5fdSJohn Fastabend u32 val; 385a1b7c5fdSJohn Fastabend u32 mask; 386a1b7c5fdSJohn Fastabend u32 link_handle; 387e014860eSJohn Fastabend u8 fshift; 388a1b7c5fdSJohn Fastabend }; 389a1b7c5fdSJohn Fastabend 390a1b7c5fdSJohn Fastabend struct tc_cls_u32_hnode { 391a1b7c5fdSJohn Fastabend u32 handle; 392a1b7c5fdSJohn Fastabend u32 prio; 393a1b7c5fdSJohn Fastabend unsigned int divisor; 394a1b7c5fdSJohn Fastabend }; 395a1b7c5fdSJohn Fastabend 396a1b7c5fdSJohn Fastabend enum tc_clsu32_command { 397a1b7c5fdSJohn Fastabend TC_CLSU32_NEW_KNODE, 398a1b7c5fdSJohn Fastabend TC_CLSU32_REPLACE_KNODE, 399a1b7c5fdSJohn Fastabend TC_CLSU32_DELETE_KNODE, 400a1b7c5fdSJohn Fastabend TC_CLSU32_NEW_HNODE, 401a1b7c5fdSJohn Fastabend TC_CLSU32_REPLACE_HNODE, 402a1b7c5fdSJohn Fastabend TC_CLSU32_DELETE_HNODE, 403a1b7c5fdSJohn Fastabend }; 404a1b7c5fdSJohn Fastabend 405a1b7c5fdSJohn Fastabend struct tc_cls_u32_offload { 406a1b7c5fdSJohn Fastabend /* knode values */ 407a1b7c5fdSJohn Fastabend enum tc_clsu32_command command; 408a1b7c5fdSJohn Fastabend union { 409a1b7c5fdSJohn Fastabend struct tc_cls_u32_knode knode; 410a1b7c5fdSJohn Fastabend struct tc_cls_u32_hnode hnode; 411a1b7c5fdSJohn Fastabend }; 412a1b7c5fdSJohn Fastabend }; 413a1b7c5fdSJohn Fastabend 41492c075dbSDaniel Borkmann static inline bool tc_should_offload(const struct net_device *dev, 41592c075dbSDaniel Borkmann const struct tcf_proto *tp, u32 flags) 4166843e7a2SJohn Fastabend { 41792c075dbSDaniel Borkmann const struct Qdisc *sch = tp->q; 41892c075dbSDaniel Borkmann const struct Qdisc_class_ops *cops = sch->ops->cl_ops; 41992c075dbSDaniel Borkmann 4202b6ab0d3SJohn Fastabend if (!(dev->features & NETIF_F_HW_TC)) 4212b6ab0d3SJohn Fastabend return false; 4229e8ce79cSJohn Fastabend if (flags & TCA_CLS_FLAGS_SKIP_HW) 4239e8ce79cSJohn Fastabend return false; 4249e8ce79cSJohn Fastabend if (!dev->netdev_ops->ndo_setup_tc) 4259e8ce79cSJohn Fastabend return false; 42692c075dbSDaniel Borkmann if (cops && cops->tcf_cl_offload) 42792c075dbSDaniel Borkmann return cops->tcf_cl_offload(tp->classid); 4289e8ce79cSJohn Fastabend 4299e8ce79cSJohn Fastabend return true; 4306843e7a2SJohn Fastabend } 4316843e7a2SJohn Fastabend 432d34e3e18SSamudrala, Sridhar static inline bool tc_skip_sw(u32 flags) 433d34e3e18SSamudrala, Sridhar { 434d34e3e18SSamudrala, Sridhar return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; 435d34e3e18SSamudrala, Sridhar } 436d34e3e18SSamudrala, Sridhar 437d34e3e18SSamudrala, Sridhar /* SKIP_HW and SKIP_SW are mutually exclusive flags. */ 438d34e3e18SSamudrala, Sridhar static inline bool tc_flags_valid(u32 flags) 439d34e3e18SSamudrala, Sridhar { 440d34e3e18SSamudrala, Sridhar if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW)) 441d34e3e18SSamudrala, Sridhar return false; 442d34e3e18SSamudrala, Sridhar 443d34e3e18SSamudrala, Sridhar if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) 444d34e3e18SSamudrala, Sridhar return false; 445d34e3e18SSamudrala, Sridhar 446d34e3e18SSamudrala, Sridhar return true; 447d34e3e18SSamudrala, Sridhar } 448d34e3e18SSamudrala, Sridhar 4495b33f488SAmir Vadai enum tc_fl_command { 4505b33f488SAmir Vadai TC_CLSFLOWER_REPLACE, 4515b33f488SAmir Vadai TC_CLSFLOWER_DESTROY, 45210cbc684SAmir Vadai TC_CLSFLOWER_STATS, 4535b33f488SAmir Vadai }; 4545b33f488SAmir Vadai 4555b33f488SAmir Vadai struct tc_cls_flower_offload { 4565b33f488SAmir Vadai enum tc_fl_command command; 4578208d21bSAmir Vadai unsigned long cookie; 4585b33f488SAmir Vadai struct flow_dissector *dissector; 4595b33f488SAmir Vadai struct fl_flow_key *mask; 4605b33f488SAmir Vadai struct fl_flow_key *key; 4615b33f488SAmir Vadai struct tcf_exts *exts; 4625b33f488SAmir Vadai }; 4635b33f488SAmir Vadai 464b87f7936SYotam Gigi enum tc_matchall_command { 465b87f7936SYotam Gigi TC_CLSMATCHALL_REPLACE, 466b87f7936SYotam Gigi TC_CLSMATCHALL_DESTROY, 467b87f7936SYotam Gigi }; 468b87f7936SYotam Gigi 469b87f7936SYotam Gigi struct tc_cls_matchall_offload { 470b87f7936SYotam Gigi enum tc_matchall_command command; 471b87f7936SYotam Gigi struct tcf_exts *exts; 472b87f7936SYotam Gigi unsigned long cookie; 473b87f7936SYotam Gigi }; 474b87f7936SYotam Gigi 4751da177e4SLinus Torvalds #endif 476