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 rcu_work *rwork, work_func_t func);
  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, struct net *net,
 244                                 int action, int police)
 245 {
 246 #ifdef CONFIG_NET_CLS_ACT
 247         exts->type = 0;
 248         exts->nr_actions = 0;
 249         exts->net = net;
 250         exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *),
 251                                 GFP_KERNEL);
 252         if (!exts->actions)
 253                 return -ENOMEM;
 254 #endif
 255         exts->action = action;
 256         exts->police = police;
 257         return 0;
 258 }
 259
 260 /* Return false if the netns is being destroyed in cleanup_net(). Callers
 261  * need to do cleanup synchronously in this case, otherwise may race with
 262  * tc_action_net_exit(). Return true for other cases.
 263  */
 264 static inline bool tcf_exts_get_net(struct tcf_exts *exts)
 265 {
 266 #ifdef CONFIG_NET_CLS_ACT
 267         exts->net = maybe_get_net(exts->net);
 268         return exts->net != NULL;
 269 #else
 270         return true;
 271 #endif
 272 }
 273
 274 static inline void tcf_exts_put_net(struct tcf_exts *exts)
 275 {
 276 #ifdef CONFIG_NET_CLS_ACT
 277         if (exts->net)
 278                 put_net(exts->net);
 279 #endif
 280 }
 281
 282 static inline void tcf_exts_to_list(const struct tcf_exts *exts,
 283                                     struct list_head *actions)
 284 {
 285 #ifdef CONFIG_NET_CLS_ACT
 286         int i;
 287
 288         for (i = 0; i < exts->nr_actions; i++) {
 289                 struct tc_action *a = exts->actions[i];
 290
 291                 list_add_tail(&a->list, actions);
 292         }
 293 #endif
 294 }
 295
 296 static inline void
 297 tcf_exts_stats_update(const struct tcf_exts *exts,
 298                       u64 bytes, u64 packets, u64 lastuse)
 299 {
 300 #ifdef CONFIG_NET_CLS_ACT
 301         int i;
 302
 303         preempt_disable();
 304
 305         for (i = 0; i < exts->nr_actions; i++) {
 306                 struct tc_action *a = exts->actions[i];
 307
 308                 tcf_action_stats_update(a, bytes, packets, lastuse);
 309         }
 310
 311         preempt_enable();
 312 #endif
 313 }
 314
 315 /**
 316  * tcf_exts_has_actions - check if at least one action is present
 317  * @exts: tc filter extensions handle
 318  *
 319  * Returns true if at least one action is present.
 320  */
 321 static inline bool tcf_exts_has_actions(struct tcf_exts *exts)
 322 {
 323 #ifdef CONFIG_NET_CLS_ACT
 324         return exts->nr_actions;
 325 #else
 326         return false;
 327 #endif
 328 }
 329
 330 /**
 331  * tcf_exts_has_one_action - check if exactly one action is present
 332  * @exts: tc filter extensions handle
 333  *
 334  * Returns true if exactly one action is present.
 335  */
 336 static inline bool tcf_exts_has_one_action(struct tcf_exts *exts)
 337 {
 338 #ifdef CONFIG_NET_CLS_ACT
 339         return exts->nr_actions == 1;
 340 #else
 341         return false;
 342 #endif
 343 }
 344
 345 /**
 346  * tcf_exts_exec - execute tc filter extensions
 347  * @skb: socket buffer
 348  * @exts: tc filter extensions handle
 349  * @res: desired result
 350  *
 351  * Executes all configured extensions. Returns TC_ACT_OK on a normal execution,
 352  * a negative number if the filter must be considered unmatched or
 353  * a positive action code (TC_ACT_*) which must be returned to the
 354  * underlying layer.
 355  */
 356 static inline int
 357 tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
 358               struct tcf_result *res)
 359 {
 360 #ifdef CONFIG_NET_CLS_ACT
 361         return tcf_action_exec(skb, exts->actions, exts->nr_actions, res);
 362 #endif
 363         return TC_ACT_OK;
 364 }
 365
 366 int tcf_exts_validate(struct net *net, struct tcf_proto *tp,
 367                       struct nlattr **tb, struct nlattr *rate_tlv,
 368                       struct tcf_exts *exts, bool ovr);
 369 void tcf_exts_destroy(struct tcf_exts *exts);
 370 void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src);
 371 int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts);
 372 int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts);
 373
 374 /**
 375  * struct tcf_pkt_info - packet information
 376  */
 377 struct tcf_pkt_info {
 378         unsigned char *         ptr;
 379         int                     nexthdr;
 380 };
 381
 382 #ifdef CONFIG_NET_EMATCH
 383
 384 struct tcf_ematch_ops;
 385
 386 /**
 387  * struct tcf_ematch - extended match (ematch)
 388  *
 389  * @matchid: identifier to allow userspace to reidentify a match
 390  * @flags: flags specifying attributes and the relation to other matches
 391  * @ops: the operations lookup table of the corresponding ematch module
 392  * @datalen: length of the ematch specific configuration data
 393  * @data: ematch specific data
 394  */
 395 struct tcf_ematch {
 396         struct tcf_ematch_ops * ops;
 397         unsigned long           data;
 398         unsigned int            datalen;
 399         u16                     matchid;
 400         u16                     flags;
 401         struct net              *net;
 402 };
 403
 404 static inline int tcf_em_is_container(struct tcf_ematch *em)
 405 {
 406         return !em->ops;
 407 }
 408
 409 static inline int tcf_em_is_simple(struct tcf_ematch *em)
 410 {
 411         return em->flags & TCF_EM_SIMPLE;
 412 }
 413
 414 static inline int tcf_em_is_inverted(struct tcf_ematch *em)
 415 {
 416         return em->flags & TCF_EM_INVERT;
 417 }
 418
 419 static inline int tcf_em_last_match(struct tcf_ematch *em)
 420 {
 421         return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END;
 422 }
 423
 424 static inline int tcf_em_early_end(struct tcf_ematch *em, int result)
 425 {
 426         if (tcf_em_last_match(em))
 427                 return 1;
 428
 429         if (result == 0 && em->flags & TCF_EM_REL_AND)
 430                 return 1;
 431
 432         if (result != 0 && em->flags & TCF_EM_REL_OR)
 433                 return 1;
 434
 435         return 0;
 436 }
 437
 438 /**
 439  * struct tcf_ematch_tree - ematch tree handle
 440  *
 441  * @hdr: ematch tree header supplied by userspace
 442  * @matches: array of ematches
 443  */
 444 struct tcf_ematch_tree {
 445         struct tcf_ematch_tree_hdr hdr;
 446         struct tcf_ematch *     matches;
 447
 448 };
 449
 450 /**
 451  * struct tcf_ematch_ops - ematch module operations
 452  *
 453  * @kind: identifier (kind) of this ematch module
 454  * @datalen: length of expected configuration data (optional)
 455  * @change: called during validation (optional)
 456  * @match: called during ematch tree evaluation, must return 1/0
 457  * @destroy: called during destroyage (optional)
 458  * @dump: called during dumping process (optional)
 459  * @owner: owner, must be set to THIS_MODULE
 460  * @link: link to previous/next ematch module (internal use)
 461  */
 462 struct tcf_ematch_ops {
 463         int                     kind;
 464         int                     datalen;
 465         int                     (*change)(struct net *net, void *,
 466                                           int, struct tcf_ematch *);
 467         int                     (*match)(struct sk_buff *, struct tcf_ematch *,
 468                                          struct tcf_pkt_info *);
 469         void                    (*destroy)(struct tcf_ematch *);
 470         int                     (*dump)(struct sk_buff *, struct tcf_ematch *);
 471         struct module           *owner;
 472         struct list_head        link;
 473 };
 474
 475 int tcf_em_register(struct tcf_ematch_ops *);
 476 void tcf_em_unregister(struct tcf_ematch_ops *);
 477 int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *,
 478                          struct tcf_ematch_tree *);
 479 void tcf_em_tree_destroy(struct tcf_ematch_tree *);
 480 int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int);
 481 int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *,
 482                         struct tcf_pkt_info *);
 483
 484 /**
 485  * tcf_em_tree_match - evaulate an ematch tree
 486  *
 487  * @skb: socket buffer of the packet in question
 488  * @tree: ematch tree to be used for evaluation
 489  * @info: packet information examined by classifier
 490  *
 491  * This function matches @skb against the ematch tree in @tree by going
 492  * through all ematches respecting their logic relations returning
 493  * as soon as the result is obvious.
 494  *
 495  * Returns 1 if the ematch tree as-one matches, no ematches are configured
 496  * or ematch is not enabled in the kernel, otherwise 0 is returned.
 497  */
 498 static inline int tcf_em_tree_match(struct sk_buff *skb,
 499                                     struct tcf_ematch_tree *tree,
 500                                     struct tcf_pkt_info *info)
 501 {
 502         if (tree->hdr.nmatches)
 503                 return __tcf_em_tree_match(skb, tree, info);
 504         else
 505                 return 1;
 506 }
 507
 508 #define MODULE_ALIAS_TCF_EMATCH(kind)   MODULE_ALIAS("ematch-kind-" __stringify(kind))
 509
 510 #else /* CONFIG_NET_EMATCH */
 511
 512 struct tcf_ematch_tree {
 513 };
 514
 515 #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0)
 516 #define tcf_em_tree_destroy(t) do { (void)(t); } while(0)
 517 #define tcf_em_tree_dump(skb, t, tlv) (0)
 518 #define tcf_em_tree_match(skb, t, info) ((void)(info), 1)
 519
 520 #endif /* CONFIG_NET_EMATCH */
 521
 522 static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer)
 523 {
 524         switch (layer) {
 525                 case TCF_LAYER_LINK:
 526                         return skb_mac_header(skb);
 527                 case TCF_LAYER_NETWORK:
 528                         return skb_network_header(skb);
 529                 case TCF_LAYER_TRANSPORT:
 530                         return skb_transport_header(skb);
 531         }
 532
 533         return NULL;
 534 }
 535
 536 static inline int tcf_valid_offset(const struct sk_buff *skb,
 537                                    const unsigned char *ptr, const int len)
 538 {
 539         return likely((ptr + len) <= skb_tail_pointer(skb) &&
 540                       ptr >= skb->head &&
 541                       (ptr <= (ptr + len)));
 542 }
 543
 544 #ifdef CONFIG_NET_CLS_IND
 545 #include <net/net_namespace.h>
 546
 547 static inline int
 548 tcf_change_indev(struct net *net, struct nlattr *indev_tlv)
 549 {
 550         char indev[IFNAMSIZ];
 551         struct net_device *dev;
 552
 553         if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ)
 554                 return -EINVAL;
 555         dev = __dev_get_by_name(net, indev);
 556         if (!dev)
 557                 return -ENODEV;
 558         return dev->ifindex;
 559 }
 560
 561 static inline bool
 562 tcf_match_indev(struct sk_buff *skb, int ifindex)
 563 {
 564         if (!ifindex)
 565                 return true;
 566         if  (!skb->skb_iif)
 567                 return false;
 568         return ifindex == skb->skb_iif;
 569 }
 570 #endif /* CONFIG_NET_CLS_IND */
 571
 572 int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts,
 573                      enum tc_setup_type type, void *type_data, bool err_stop);
 574
 575 enum tc_block_command {
 576         TC_BLOCK_BIND,
 577         TC_BLOCK_UNBIND,
 578 };
 579
 580 struct tc_block_offload {
 581         enum tc_block_command command;
 582         enum tcf_block_binder_type binder_type;
 583         struct tcf_block *block;
 584 };
 585
 586 struct tc_cls_common_offload {
 587         u32 chain_index;
 588         __be16 protocol;
 589         u32 prio;
 590 };
 591
 592 static inline void
 593 tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common,
 594                            const struct tcf_proto *tp)
 595 {
 596         cls_common->chain_index = tp->chain->index;
 597         cls_common->protocol = tp->protocol;
 598         cls_common->prio = tp->prio;
 599 }
 600
 601 struct tc_cls_u32_knode {
 602         struct tcf_exts *exts;
 603         struct tc_u32_sel *sel;
 604         u32 handle;
 605         u32 val;
 606         u32 mask;
 607         u32 link_handle;
 608         u8 fshift;
 609 };
 610
 611 struct tc_cls_u32_hnode {
 612         u32 handle;
 613         u32 prio;
 614         unsigned int divisor;
 615 };
 616
 617 enum tc_clsu32_command {
 618         TC_CLSU32_NEW_KNODE,
 619         TC_CLSU32_REPLACE_KNODE,
 620         TC_CLSU32_DELETE_KNODE,
 621         TC_CLSU32_NEW_HNODE,
 622         TC_CLSU32_REPLACE_HNODE,
 623         TC_CLSU32_DELETE_HNODE,
 624 };
 625
 626 struct tc_cls_u32_offload {
 627         struct tc_cls_common_offload common;
 628         /* knode values */
 629         enum tc_clsu32_command command;
 630         union {
 631                 struct tc_cls_u32_knode knode;
 632                 struct tc_cls_u32_hnode hnode;
 633         };
 634 };
 635
 636 static inline bool tc_can_offload(const struct net_device *dev)
 637 {
 638         return dev->features & NETIF_F_HW_TC;
 639 }
 640
 641 static inline bool tc_skip_hw(u32 flags)
 642 {
 643         return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false;
 644 }
 645
 646 static inline bool tc_skip_sw(u32 flags)
 647 {
 648         return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false;
 649 }
 650
 651 /* SKIP_HW and SKIP_SW are mutually exclusive flags. */
 652 static inline bool tc_flags_valid(u32 flags)
 653 {
 654         if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))
 655                 return false;
 656
 657         if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW)))
 658                 return false;
 659
 660         return true;
 661 }
 662
 663 static inline bool tc_in_hw(u32 flags)
 664 {
 665         return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false;
 666 }
 667
 668 enum tc_fl_command {
 669         TC_CLSFLOWER_REPLACE,
 670         TC_CLSFLOWER_DESTROY,
 671         TC_CLSFLOWER_STATS,
 672 };
 673
 674 struct tc_cls_flower_offload {
 675         struct tc_cls_common_offload common;
 676         enum tc_fl_command command;
 677         unsigned long cookie;
 678         struct flow_dissector *dissector;
 679         struct fl_flow_key *mask;
 680         struct fl_flow_key *key;
 681         struct tcf_exts *exts;
 682         u32 classid;
 683 };
 684
 685 enum tc_matchall_command {
 686         TC_CLSMATCHALL_REPLACE,
 687         TC_CLSMATCHALL_DESTROY,
 688 };
 689
 690 struct tc_cls_matchall_offload {
 691         struct tc_cls_common_offload common;
 692         enum tc_matchall_command command;
 693         struct tcf_exts *exts;
 694         unsigned long cookie;
 695 };
 696
 697 enum tc_clsbpf_command {
 698         TC_CLSBPF_OFFLOAD,
 699         TC_CLSBPF_STATS,
 700 };
 701
 702 struct tc_cls_bpf_offload {
 703         struct tc_cls_common_offload common;
 704         enum tc_clsbpf_command command;
 705         struct tcf_exts *exts;
 706         struct bpf_prog *prog;
 707         struct bpf_prog *oldprog;
 708         const char *name;
 709         bool exts_integrated;
 710         u32 gen_flags;
 711 };
 712
 713 struct tc_mqprio_qopt_offload {
 714         /* struct tc_mqprio_qopt must always be the first element */
 715         struct tc_mqprio_qopt qopt;
 716         u16 mode;
 717         u16 shaper;
 718         u32 flags;
 719         u64 min_rate[TC_QOPT_MAX_QUEUE];
 720         u64 max_rate[TC_QOPT_MAX_QUEUE];
 721 };
 722
 723 /* This structure holds cookie structure that is passed from user
 724  * to the kernel for actions and classifiers
 725  */
 726 struct tc_cookie {
 727         u8  *data;
 728         u32 len;
 729 };
 730
 731 enum tc_red_command {
 732         TC_RED_REPLACE,
 733         TC_RED_DESTROY,
 734         TC_RED_STATS,
 735         TC_RED_XSTATS,
 736 };
 737
 738 struct tc_red_qopt_offload_params {
 739         u32 min;
 740         u32 max;
 741         u32 probability;
 742         bool is_ecn;
 743 };
 744 struct tc_red_qopt_offload_stats {
 745         struct gnet_stats_basic_packed *bstats;
 746         struct gnet_stats_queue *qstats;
 747 };
 748
 749 struct tc_red_qopt_offload {
 750         enum tc_red_command command;
 751         u32 handle;
 752         u32 parent;
 753         union {
 754                 struct tc_red_qopt_offload_params set;
 755                 struct tc_red_qopt_offload_stats stats;
 756                 struct red_stats *xstats;
 757         };
 758 };
 759
 760 #endif