include/net/pkt_cls.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NET_PKT_CLS_H
   3 #define __NET_PKT_CLS_H
   4
   5 #include <linux/pkt_cls.h>
   6 #include <linux/workqueue.h>
   7 #include <net/sch_generic.h>
   8 #include <net/act_api.h>
   9
  10 /* Basic packet classifier frontend definitions. */
  11
  12 struct tcf_walker {
  13         int     stop;
  14         int     skip;
  15         int     count;
  16         int     (*fn)(struct tcf_proto *, void *node, struct tcf_walker *);
  17 };
  18
  19 int register_tcf_proto_ops(struct tcf_proto_ops *ops);
  20 int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
  21
  22 enum tcf_block_binder_type {
  23         TCF_BLOCK_BINDER_TYPE_UNSPEC,
  24         TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS,
  25         TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS,
  26 };
  27
  28 struct tcf_block_ext_info {
  29         enum tcf_block_binder_type binder_type;
  30         tcf_chain_head_change_t *chain_head_change;
  31         void *chain_head_change_priv;
  32 };
  33
  34 struct tcf_block_cb;
  35 bool tcf_queue_work(struct work_struct *work);
  36
  37 #ifdef CONFIG_NET_CLS
  38 struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
  39                                 bool create);
  40 void tcf_chain_put(struct tcf_chain *chain);
  41 int tcf_block_get(struct tcf_block **p_block,
  42                   struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q);
  43 int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q,
  44                       struct tcf_block_ext_info *ei);
  45 void tcf_block_put(struct tcf_block *block);
  46 void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q,
  47                        struct tcf_block_ext_info *ei);
  48
  49 static inline struct Qdisc *tcf_block_q(struct tcf_block *block)
  50 {
  51         return block->q;
  52 }
  53
  54 static inline struct net_device *tcf_block_dev(struct tcf_block *block)
  55 {
  56         return tcf_block_q(block)->dev_queue->dev;
  57 }
  58
  59 void *tcf_block_cb_priv(struct tcf_block_cb *block_cb);
  60 struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block,
  61                                          tc_setup_cb_t *cb, void *cb_ident);
  62 void tcf_block_cb_incref(struct tcf_block_cb *block_cb);
  63 unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb);
  64 struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block,
  65                                              tc_setup_cb_t *cb, void *cb_ident,
  66                                              void *cb_priv);
  67 int tcf_block_cb_register(struct tcf_block *block,
  68                           tc_setup_cb_t *cb, void *cb_ident,
  69                           void *cb_priv);
  70 void __tcf_block_cb_unregister(struct tcf_block_cb *block_cb);
  71 void tcf_block_cb_unregister(struct tcf_block *block,
  72                              tc_setup_cb_t *cb, void *cb_ident);
  73
  74 int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
  75                  struct tcf_result *res, bool compat_mode);
  76
  77 #else
  78 static inline
  79 int tcf_block_get(struct tcf_block **p_block,
  80                   struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q)
  81 {
  82         return 0;
  83 }
  84
  85 static inline
  86 int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q,
  87                       struct tcf_block_ext_info *ei)
  88 {
  89         return 0;
  90 }
  91
  92 static inline void tcf_block_put(struct tcf_block *block)
  93 {
  94 }
  95
  96 static inline
  97 void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q,
  98                        struct tcf_block_ext_info *ei)
  99 {
 100 }
 101
 102 static inline struct Qdisc *tcf_block_q(struct tcf_block *block)
 103 {
 104         return NULL;
 105 }
 106
 107 static inline struct net_device *tcf_block_dev(struct tcf_block *block)
 108 {
 109         return NULL;
 110 }
 111
 112 static inline
 113 int tc_setup_cb_block_register(struct tcf_block *block, tc_setup_cb_t *cb,
 114                                void *cb_priv)
 115 {
 116         return 0;
 117 }
 118
 119 static inline
 120 void tc_setup_cb_block_unregister(struct tcf_block *block, tc_setup_cb_t *cb,
 121                                   void *cb_priv)
 122 {
 123 }
 124
 125 static inline
 126 void *tcf_block_cb_priv(struct tcf_block_cb *block_cb)
 127 {
 128         return NULL;
 129 }
 130
 131 static inline
 132 struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block,
 133                                          tc_setup_cb_t *cb, void *cb_ident)
 134 {
 135         return NULL;
 136 }
 137
 138 static inline
 139 void tcf_block_cb_incref(struct tcf_block_cb *block_cb)
 140 {
 141 }
 142
 143 static inline
 144 unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb)
 145 {
 146         return 0;
 147 }
 148
 149 static inline
 150 struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block,
 151                                              tc_setup_cb_t *cb, void *cb_ident,
 152                                              void *cb_priv)
 153 {
 154         return NULL;
 155 }
 156
 157 static inline
 158 int tcf_block_cb_register(struct tcf_block *block,
 159                           tc_setup_cb_t *cb, void *cb_ident,
 160                           void *cb_priv)
 161 {
 162         return 0;
 163 }
 164
 165 static inline
 166 void __tcf_block_cb_unregister(struct tcf_block_cb *block_cb)
 167 {
 168 }
 169
 170 static inline
 171 void tcf_block_cb_unregister(struct tcf_block *block,
 172                              tc_setup_cb_t *cb, void *cb_ident)
 173 {
 174 }
 175
 176 static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
 177                                struct tcf_result *res, bool compat_mode)
 178 {
 179         return TC_ACT_UNSPEC;
 180 }
 181 #endif
 182
 183 static inline unsigned long
 184 __cls_set_class(unsigned long *clp, unsigned long cl)
 185 {
 186         return xchg(clp, cl);
 187 }
 188
 189 static inline unsigned long
 190 cls_set_class(struct Qdisc *q, unsigned long *clp, unsigned long cl)
 191 {
 192         unsigned long old_cl;
 193
 194         sch_tree_lock(q);
 195         old_cl = __cls_set_class(clp, cl);
 196         sch_tree_unlock(q);
 197         return old_cl;
 198 }
 199
 200 static inline void
 201 tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base)
 202 {
 203         struct Qdisc *q = tp->chain->block->q;
 204         unsigned long cl;
 205
 206         /* Check q as it is not set for shared blocks. In that case,
 207          * setting class is not supported.
 208          */
 209         if (!q)
 210                 return;
 211         cl = q->ops->cl_ops->bind_tcf(q, base, r->classid);
 212         cl = cls_set_class(q, &r->class, cl);
 213         if (cl)
 214                 q->ops->cl_ops->unbind_tcf(q, cl);
 215 }
 216
 217 static inline void
 218 tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r)
 219 {
 220         struct Qdisc *q = tp->chain->block->q;
 221         unsigned long cl;
 222
 223         if (!q)
 224                 return;
 225         if ((cl = __cls_set_class(&r->class, 0)) != 0)
 226                 q->ops->cl_ops->unbind_tcf(q, cl);
 227 }
 228
 229 struct tcf_exts {
 230 #ifdef CONFIG_NET_CLS_ACT
 231         __u32   type; /* for backward compat(TCA_OLD_COMPAT) */
 232         int nr_actions;
 233         struct tc_action **actions;
 234         struct net *net;
 235 #endif
 236         /* Map to export classifier specific extension TLV types to the
 237          * generic extensions API. Unsupported extensions must be set to 0.
 238          */
 239         int action;
 240         int police;
 241 };
 242
 243 static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police)
 244 {
 245 #ifdef CONFIG_NET_CLS_ACT
 246         exts->type = 0;
 247         exts->nr_actions = 0;
 248         exts->net = NULL;
 249         exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *),
 250                                 GFP_KERNEL);
 251         if (!exts->actions)
 252                 return -ENOMEM;
 253 #endif
 254         exts->action = action;
 255         exts->police = police;
 256         return 0;
 257 }
 258
 259 /* Return false if the netns is being destroyed in cleanup_net(). Callers
 260  * need to do cleanup synchronously in this case, otherwise may race with
 261  * tc_action_net_exit(). Return true for other cases.
 262  */
 263 static inline bool tcf_exts_get_net(struct tcf_exts *exts)
 264 {
 265 #ifdef CONFIG_NET_CLS_ACT
 266         exts->net = maybe_get_net(exts->net);
 267         return exts->net != NULL;
 268 #else
 269         return true;
 270 #endif
 271 }
 272
 273 static inline void tcf_exts_put_net(struct tcf_exts *exts)
 274 {
 275 #ifdef CONFIG_NET_CLS_ACT
 276         if (exts->net)
 277                 put_net(exts->net);
 278 #endif
 279 }
 280
 281 static inline void tcf_exts_to_list(const struct tcf_exts *exts,
 282                                     struct list_head *actions)
 283 {
 284 #ifdef CONFIG_NET_CLS_ACT
 285         int i;
 286
 287         for (i = 0; i < exts->nr_actions; i++) {
 288                 struct tc_action *a = exts->actions[i];
 289
 290                 list_add_tail(&a->list, actions);
 291         }
 292 #endif
 293 }
 294
 295 static inline void
 296 tcf_exts_stats_update(const struct tcf_exts *exts,
 297                       u64 bytes, u64 packets, u64 lastuse)
 298 {
 299 #ifdef CONFIG_NET_CLS_ACT
 300         int i;
 301
 302         preempt_disable();
 303
 304         for (i = 0; i < exts->nr_actions; i++) {
 305                 struct tc_action *a = exts->actions[i];
 306
 307                 tcf_action_stats_update(a, bytes, packets, lastuse);
 308         }
 309
 310         preempt_enable();
 311 #endif
 312 }
 313
 314 /**
 315  * tcf_exts_has_actions - check if at least one action is present
 316  * @exts: tc filter extensions handle
 317  *
 318  * Returns true if at least one action is present.
 319  */
 320 static inline bool tcf_exts_has_actions(struct tcf_exts *exts)
 321 {
 322 #ifdef CONFIG_NET_CLS_ACT
 323         return exts->nr_actions;
 324 #else
 325         return false;
 326 #endif
 327 }
 328
 329 /**
 330  * tcf_exts_has_one_action - check if exactly one action is present
 331  * @exts: tc filter extensions handle
 332  *
 333  * Returns true if exactly one action is present.
 334  */
 335 static inline bool tcf_exts_has_one_action(struct tcf_exts *exts)
 336 {
 337 #ifdef CONFIG_NET_CLS_ACT
 338         return exts->nr_actions == 1;
 339 #else
 340         return false;
 341 #endif
 342 }
 343
 344 /**
 345  * tcf_exts_exec - execute tc filter extensions
 346  * @skb: socket buffer
 347  * @exts: tc filter extensions handle
 348  * @res: desired result
 349  *
 350  * Executes all configured extensions. Returns TC_ACT_OK on a normal execution,
 351  * a negative number if the filter must be considered unmatched or
 352  * a positive action code (TC_ACT_*) which must be returned to the
 353  * underlying layer.
 354  */
 355 static inline int
 356 tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
 357               struct tcf_result *res)
 358 {
 359 #ifdef CONFIG_NET_CLS_ACT
 360         return tcf_action_exec(skb, exts->actions, exts->nr_actions, res);
 361 #endif
 362         return TC_ACT_OK;
 363 }
 364
 365 int tcf_exts_validate(struct net *net, struct tcf_proto *tp,
 366                       struct nlattr **tb, struct nlattr *rate_tlv,
 367                       struct tcf_exts *exts, bool ovr);
 368 void tcf_exts_destroy(struct tcf_exts *exts);
 369 void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src);
 370 int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts);
 371 int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts);
 372
 373 /**
 374  * struct tcf_pkt_info - packet information
 375  */
 376 struct tcf_pkt_info {
 377         unsigned char *         ptr;
 378         int                     nexthdr;
 379 };
 380
 381 #ifdef CONFIG_NET_EMATCH
 382
 383 struct tcf_ematch_ops;
 384
 385 /**
 386  * struct tcf_ematch - extended match (ematch)
 387  *
 388  * @matchid: identifier to allow userspace to reidentify a match
 389  * @flags: flags specifying attributes and the relation to other matches
 390  * @ops: the operations lookup table of the corresponding ematch module
 391  * @datalen: length of the ematch specific configuration data
 392  * @data: ematch specific data
 393  */
 394 struct tcf_ematch {
 395         struct tcf_ematch_ops * ops;
 396         unsigned long           data;
 397         unsigned int            datalen;
 398         u16                     matchid;
 399         u16                     flags;
 400         struct net              *net;
 401 };
 402
 403 static inline int tcf_em_is_container(struct tcf_ematch *em)
 404 {
 405         return !em->ops;
 406 }
 407
 408 static inline int tcf_em_is_simple(struct tcf_ematch *em)
 409 {
 410         return em->flags & TCF_EM_SIMPLE;
 411 }
 412
 413 static inline int tcf_em_is_inverted(struct tcf_ematch *em)
 414 {
 415         return em->flags & TCF_EM_INVERT;
 416 }
 417
 418 static inline int tcf_em_last_match(struct tcf_ematch *em)
 419 {
 420         return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END;
 421 }
 422
 423 static inline int tcf_em_early_end(struct tcf_ematch *em, int result)
 424 {
 425         if (tcf_em_last_match(em))
 426                 return 1;
 427
 428         if (result == 0 && em->flags & TCF_EM_REL_AND)
 429                 return 1;
 430
 431         if (result != 0 && em->flags & TCF_EM_REL_OR)
 432                 return 1;
 433
 434         return 0;
 435 }
 436
 437 /**
 438  * struct tcf_ematch_tree - ematch tree handle
 439  *
 440  * @hdr: ematch tree header supplied by userspace
 441  * @matches: array of ematches
 442  */
 443 struct tcf_ematch_tree {
 444         struct tcf_ematch_tree_hdr hdr;
 445         struct tcf_ematch *     matches;
 446
 447 };
 448
 449 /**
 450  * struct tcf_ematch_ops - ematch module operations
 451  *
 452  * @kind: identifier (kind) of this ematch module
 453  * @datalen: length of expected configuration data (optional)
 454  * @change: called during validation (optional)
 455  * @match: called during ematch tree evaluation, must return 1/0
 456  * @destroy: called during destroyage (optional)
 457  * @dump: called during dumping process (optional)
 458  * @owner: owner, must be set to THIS_MODULE
 459  * @link: link to previous/next ematch module (internal use)
 460  */
 461 struct tcf_ematch_ops {
 462         int                     kind;
 463         int                     datalen;
 464         int                     (*change)(struct net *net, void *,
 465                                           int, struct tcf_ematch *);
 466         int                     (*match)(struct sk_buff *, struct tcf_ematch *,
 467                                          struct tcf_pkt_info *);
 468         void                    (*destroy)(struct tcf_ematch *);
 469         int                     (*dump)(struct sk_buff *, struct tcf_ematch *);
 470         struct module           *owner;
 471         struct list_head        link;
 472 };
 473
 474 int tcf_em_register(struct tcf_ematch_ops *);
 475 void tcf_em_unregister(struct tcf_ematch_ops *);
 476 int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *,
 477                          struct tcf_ematch_tree *);
 478 void tcf_em_tree_destroy(struct tcf_ematch_tree *);
 479 int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int);
 480 int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *,
 481                         struct tcf_pkt_info *);
 482
 483 /**
 484  * tcf_em_tree_match - evaulate an ematch tree
 485  *
 486  * @skb: socket buffer of the packet in question
 487  * @tree: ematch tree to be used for evaluation
 488  * @info: packet information examined by classifier
 489  *
 490  * This function matches @skb against the ematch tree in @tree by going
 491  * through all ematches respecting their logic relations returning
 492  * as soon as the result is obvious.
 493  *
 494  * Returns 1 if the ematch tree as-one matches, no ematches are configured
 495  * or ematch is not enabled in the kernel, otherwise 0 is returned.
 496  */
 497 static inline int tcf_em_tree_match(struct sk_buff *skb,
 498                                     struct tcf_ematch_tree *tree,
 499                                     struct tcf_pkt_info *info)
 500 {
 501         if (tree->hdr.nmatches)
 502                 return __tcf_em_tree_match(skb, tree, info);
 503         else
 504                 return 1;
 505 }
 506
 507 #define MODULE_ALIAS_TCF_EMATCH(kind)   MODULE_ALIAS("ematch-kind-" __stringify(kind))
 508
 509 #else /* CONFIG_NET_EMATCH */
 510
 511 struct tcf_ematch_tree {
 512 };
 513
 514 #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0)
 515 #define tcf_em_tree_destroy(t) do { (void)(t); } while(0)
 516 #define tcf_em_tree_dump(skb, t, tlv) (0)
 517 #define tcf_em_tree_match(skb, t, info) ((void)(info), 1)
 518
 519 #endif /* CONFIG_NET_EMATCH */
 520
 521 static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer)
 522 {
 523         switch (layer) {
 524                 case TCF_LAYER_LINK:
 525                         return skb->data;
 526                 case TCF_LAYER_NETWORK:
 527                         return skb_network_header(skb);
 528                 case TCF_LAYER_TRANSPORT:
 529                         return skb_transport_header(skb);
 530         }
 531
 532         return NULL;
 533 }
 534
 535 static inline int tcf_valid_offset(const struct sk_buff *skb,
 536                                    const unsigned char *ptr, const int len)
 537 {
 538         return likely((ptr + len) <= skb_tail_pointer(skb) &&
 539                       ptr >= skb->head &&
 540                       (ptr <= (ptr + len)));
 541 }
 542
 543 #ifdef CONFIG_NET_CLS_IND
 544 #include <net/net_namespace.h>
 545
 546 static inline int
 547 tcf_change_indev(struct net *net, struct nlattr *indev_tlv)
 548 {
 549         char indev[IFNAMSIZ];
 550         struct net_device *dev;
 551
 552         if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ)
 553                 return -EINVAL;
 554         dev = __dev_get_by_name(net, indev);
 555         if (!dev)
 556                 return -ENODEV;
 557         return dev->ifindex;
 558 }
 559
 560 static inline bool
 561 tcf_match_indev(struct sk_buff *skb, int ifindex)
 562 {
 563         if (!ifindex)
 564                 return true;
 565         if  (!skb->skb_iif)
 566                 return false;
 567         return ifindex == skb->skb_iif;
 568 }
 569 #endif /* CONFIG_NET_CLS_IND */
 570
 571 int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts,
 572                      enum tc_setup_type type, void *type_data, bool err_stop);
 573
 574 enum tc_block_command {
 575         TC_BLOCK_BIND,
 576         TC_BLOCK_UNBIND,
 577 };
 578
 579 struct tc_block_offload {
 580         enum tc_block_command command;
 581         enum tcf_block_binder_type binder_type;
 582         struct tcf_block *block;
 583 };
 584
 585 struct tc_cls_common_offload {
 586         u32 chain_index;
 587         __be16 protocol;
 588         u32 prio;
 589 };
 590
 591 static inline void
 592 tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common,
 593                            const struct tcf_proto *tp)
 594 {
 595         cls_common->chain_index = tp->chain->index;
 596         cls_common->protocol = tp->protocol;
 597         cls_common->prio = tp->prio;
 598 }
 599
 600 struct tc_cls_u32_knode {
 601         struct tcf_exts *exts;
 602         struct tc_u32_sel *sel;
 603         u32 handle;
 604         u32 val;
 605         u32 mask;
 606         u32 link_handle;
 607         u8 fshift;
 608 };
 609
 610 struct tc_cls_u32_hnode {
 611         u32 handle;
 612         u32 prio;
 613         unsigned int divisor;
 614 };
 615
 616 enum tc_clsu32_command {
 617         TC_CLSU32_NEW_KNODE,
 618         TC_CLSU32_REPLACE_KNODE,
 619         TC_CLSU32_DELETE_KNODE,
 620         TC_CLSU32_NEW_HNODE,
 621         TC_CLSU32_REPLACE_HNODE,
 622         TC_CLSU32_DELETE_HNODE,
 623 };
 624
 625 struct tc_cls_u32_offload {
 626         struct tc_cls_common_offload common;
 627         /* knode values */
 628         enum tc_clsu32_command command;
 629         union {
 630                 struct tc_cls_u32_knode knode;
 631                 struct tc_cls_u32_hnode hnode;
 632         };
 633 };
 634
 635 static inline bool tc_can_offload(const struct net_device *dev)
 636 {
 637         return dev->features & NETIF_F_HW_TC;
 638 }
 639
 640 static inline bool tc_skip_hw(u32 flags)
 641 {
 642         return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false;
 643 }
 644
 645 static inline bool tc_skip_sw(u32 flags)
 646 {
 647         return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false;
 648 }
 649
 650 /* SKIP_HW and SKIP_SW are mutually exclusive flags. */
 651 static inline bool tc_flags_valid(u32 flags)
 652 {
 653         if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))
 654                 return false;
 655
 656         if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW)))
 657                 return false;
 658
 659         return true;
 660 }
 661
 662 static inline bool tc_in_hw(u32 flags)
 663 {
 664         return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false;
 665 }
 666
 667 enum tc_fl_command {
 668         TC_CLSFLOWER_REPLACE,
 669         TC_CLSFLOWER_DESTROY,
 670         TC_CLSFLOWER_STATS,
 671 };
 672
 673 struct tc_cls_flower_offload {
 674         struct tc_cls_common_offload common;
 675         enum tc_fl_command command;
 676         unsigned long cookie;
 677         struct flow_dissector *dissector;
 678         struct fl_flow_key *mask;
 679         struct fl_flow_key *key;
 680         struct tcf_exts *exts;
 681         u32 classid;
 682 };
 683
 684 enum tc_matchall_command {
 685         TC_CLSMATCHALL_REPLACE,
 686         TC_CLSMATCHALL_DESTROY,
 687 };
 688
 689 struct tc_cls_matchall_offload {
 690         struct tc_cls_common_offload common;
 691         enum tc_matchall_command command;
 692         struct tcf_exts *exts;
 693         unsigned long cookie;
 694 };
 695
 696 enum tc_clsbpf_command {
 697         TC_CLSBPF_OFFLOAD,
 698         TC_CLSBPF_STATS,
 699 };
 700
 701 struct tc_cls_bpf_offload {
 702         struct tc_cls_common_offload common;
 703         enum tc_clsbpf_command command;
 704         struct tcf_exts *exts;
 705         struct bpf_prog *prog;
 706         struct bpf_prog *oldprog;
 707         const char *name;
 708         bool exts_integrated;
 709         u32 gen_flags;
 710 };
 711
 712 struct tc_mqprio_qopt_offload {
 713         /* struct tc_mqprio_qopt must always be the first element */
 714         struct tc_mqprio_qopt qopt;
 715         u16 mode;
 716         u16 shaper;
 717         u32 flags;
 718         u64 min_rate[TC_QOPT_MAX_QUEUE];
 719         u64 max_rate[TC_QOPT_MAX_QUEUE];
 720 };
 721
 722 /* This structure holds cookie structure that is passed from user
 723  * to the kernel for actions and classifiers
 724  */
 725 struct tc_cookie {
 726         u8  *data;
 727         u32 len;
 728 };
 729
 730 enum tc_red_command {
 731         TC_RED_REPLACE,
 732         TC_RED_DESTROY,
 733         TC_RED_STATS,
 734         TC_RED_XSTATS,
 735 };
 736
 737 struct tc_red_qopt_offload_params {
 738         u32 min;
 739         u32 max;
 740         u32 probability;
 741         bool is_ecn;
 742 };
 743 struct tc_red_qopt_offload_stats {
 744         struct gnet_stats_basic_packed *bstats;
 745         struct gnet_stats_queue *qstats;
 746 };
 747
 748 struct tc_red_qopt_offload {
 749         enum tc_red_command command;
 750         u32 handle;
 751         u32 parent;
 752         union {
 753                 struct tc_red_qopt_offload_params set;
 754                 struct tc_red_qopt_offload_stats stats;
 755                 struct red_stats *xstats;
 756         };
 757 };
 758
 759 #endif