Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | #ifndef __NET_PKT_CLS_H |
| 3 | #define __NET_PKT_CLS_H |
| 4 | |
| 5 | #include <linux/pkt_cls.h> |
Cong Wang | 7aa0045 | 2017-10-26 18:24:28 -0700 | [diff] [blame] | 6 | #include <linux/workqueue.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | #include <net/sch_generic.h> |
| 8 | #include <net/act_api.h> |
| 9 | |
| 10 | /* Basic packet classifier frontend definitions. */ |
| 11 | |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 12 | struct tcf_walker { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | int stop; |
| 14 | int skip; |
| 15 | int count; |
WANG Cong | 8113c09 | 2017-08-04 21:31:43 -0700 | [diff] [blame] | 16 | int (*fn)(struct tcf_proto *, void *node, struct tcf_walker *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | }; |
| 18 | |
Joe Perches | 5c15257 | 2013-07-30 22:47:13 -0700 | [diff] [blame] | 19 | int register_tcf_proto_ops(struct tcf_proto_ops *ops); |
| 20 | int unregister_tcf_proto_ops(struct tcf_proto_ops *ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 22 | enum tcf_block_binder_type { |
| 23 | TCF_BLOCK_BINDER_TYPE_UNSPEC, |
Jiri Pirko | 6e40cf2 | 2017-10-19 15:50:30 +0200 | [diff] [blame] | 24 | TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS, |
| 25 | TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS, |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 26 | }; |
| 27 | |
| 28 | struct tcf_block_ext_info { |
| 29 | enum tcf_block_binder_type binder_type; |
Jiri Pirko | c7eb7d7 | 2017-11-03 11:46:24 +0100 | [diff] [blame] | 30 | tcf_chain_head_change_t *chain_head_change; |
| 31 | void *chain_head_change_priv; |
Jiri Pirko | 4861738 | 2018-01-17 11:46:46 +0100 | [diff] [blame] | 32 | u32 block_index; |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 33 | }; |
| 34 | |
Jiri Pirko | acb6744 | 2017-10-19 15:50:31 +0200 | [diff] [blame] | 35 | struct tcf_block_cb; |
Cong Wang | aaa908f | 2018-05-23 15:26:53 -0700 | [diff] [blame] | 36 | bool tcf_queue_work(struct rcu_work *rwork, work_func_t func); |
Jiri Pirko | acb6744 | 2017-10-19 15:50:31 +0200 | [diff] [blame] | 37 | |
Jiri Pirko | 8ae7003 | 2017-02-15 11:57:50 +0100 | [diff] [blame] | 38 | #ifdef CONFIG_NET_CLS |
WANG Cong | 367a8ce | 2017-05-23 09:42:37 -0700 | [diff] [blame] | 39 | struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index, |
| 40 | bool create); |
Jiri Pirko | 5bc1701 | 2017-05-17 11:08:01 +0200 | [diff] [blame] | 41 | void tcf_chain_put(struct tcf_chain *chain); |
Jiri Pirko | f36fe1c | 2018-01-17 11:46:48 +0100 | [diff] [blame] | 42 | void tcf_block_netif_keep_dst(struct tcf_block *block); |
Jiri Pirko | 6529eab | 2017-05-17 11:07:55 +0200 | [diff] [blame] | 43 | int tcf_block_get(struct tcf_block **p_block, |
Alexander Aring | 8d1a77f | 2017-12-20 12:35:19 -0500 | [diff] [blame] | 44 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, |
| 45 | struct netlink_ext_ack *extack); |
Jiri Pirko | c7eb7d7 | 2017-11-03 11:46:24 +0100 | [diff] [blame] | 46 | int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, |
Alexander Aring | 8d1a77f | 2017-12-20 12:35:19 -0500 | [diff] [blame] | 47 | struct tcf_block_ext_info *ei, |
| 48 | struct netlink_ext_ack *extack); |
Jiri Pirko | 6529eab | 2017-05-17 11:07:55 +0200 | [diff] [blame] | 49 | void tcf_block_put(struct tcf_block *block); |
Jiri Pirko | c7eb7d7 | 2017-11-03 11:46:24 +0100 | [diff] [blame] | 50 | void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 51 | struct tcf_block_ext_info *ei); |
Jiri Pirko | 4418646 | 2017-10-13 14:00:59 +0200 | [diff] [blame] | 52 | |
Jiri Pirko | 4861738 | 2018-01-17 11:46:46 +0100 | [diff] [blame] | 53 | static inline bool tcf_block_shared(struct tcf_block *block) |
| 54 | { |
| 55 | return block->index; |
| 56 | } |
| 57 | |
Jiri Pirko | 4418646 | 2017-10-13 14:00:59 +0200 | [diff] [blame] | 58 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) |
| 59 | { |
Jiri Pirko | 4861738 | 2018-01-17 11:46:46 +0100 | [diff] [blame] | 60 | WARN_ON(tcf_block_shared(block)); |
Jiri Pirko | 4418646 | 2017-10-13 14:00:59 +0200 | [diff] [blame] | 61 | return block->q; |
| 62 | } |
| 63 | |
| 64 | static inline struct net_device *tcf_block_dev(struct tcf_block *block) |
| 65 | { |
| 66 | return tcf_block_q(block)->dev_queue->dev; |
| 67 | } |
| 68 | |
Jiri Pirko | acb6744 | 2017-10-19 15:50:31 +0200 | [diff] [blame] | 69 | void *tcf_block_cb_priv(struct tcf_block_cb *block_cb); |
| 70 | struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block, |
| 71 | tc_setup_cb_t *cb, void *cb_ident); |
| 72 | void tcf_block_cb_incref(struct tcf_block_cb *block_cb); |
| 73 | unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb); |
| 74 | struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block, |
| 75 | tc_setup_cb_t *cb, void *cb_ident, |
| 76 | void *cb_priv); |
| 77 | int tcf_block_cb_register(struct tcf_block *block, |
| 78 | tc_setup_cb_t *cb, void *cb_ident, |
| 79 | void *cb_priv); |
| 80 | void __tcf_block_cb_unregister(struct tcf_block_cb *block_cb); |
| 81 | void tcf_block_cb_unregister(struct tcf_block *block, |
| 82 | tc_setup_cb_t *cb, void *cb_ident); |
| 83 | |
Jiri Pirko | 87d8309 | 2017-05-17 11:07:54 +0200 | [diff] [blame] | 84 | int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
| 85 | struct tcf_result *res, bool compat_mode); |
| 86 | |
Jiri Pirko | 8ae7003 | 2017-02-15 11:57:50 +0100 | [diff] [blame] | 87 | #else |
Jiri Pirko | 6529eab | 2017-05-17 11:07:55 +0200 | [diff] [blame] | 88 | static inline |
| 89 | int tcf_block_get(struct tcf_block **p_block, |
Sudip Mukherjee | 3c14909 | 2017-12-22 15:52:05 +0000 | [diff] [blame] | 90 | struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q, |
| 91 | struct netlink_ext_ack *extack) |
Jiri Pirko | 6529eab | 2017-05-17 11:07:55 +0200 | [diff] [blame] | 92 | { |
| 93 | return 0; |
| 94 | } |
| 95 | |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 96 | static inline |
Jiri Pirko | c7eb7d7 | 2017-11-03 11:46:24 +0100 | [diff] [blame] | 97 | int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q, |
Quentin Monnet | 33c30a8 | 2018-01-03 17:30:45 -0800 | [diff] [blame] | 98 | struct tcf_block_ext_info *ei, |
| 99 | struct netlink_ext_ack *extack) |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 100 | { |
| 101 | return 0; |
| 102 | } |
| 103 | |
Jiri Pirko | 6529eab | 2017-05-17 11:07:55 +0200 | [diff] [blame] | 104 | static inline void tcf_block_put(struct tcf_block *block) |
Jiri Pirko | 8ae7003 | 2017-02-15 11:57:50 +0100 | [diff] [blame] | 105 | { |
| 106 | } |
Jiri Pirko | 87d8309 | 2017-05-17 11:07:54 +0200 | [diff] [blame] | 107 | |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 108 | static inline |
Jiri Pirko | c7eb7d7 | 2017-11-03 11:46:24 +0100 | [diff] [blame] | 109 | void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 110 | struct tcf_block_ext_info *ei) |
| 111 | { |
| 112 | } |
| 113 | |
John Hurley | 951a8ee | 2018-06-25 20:36:28 -0700 | [diff] [blame] | 114 | static inline bool tcf_block_shared(struct tcf_block *block) |
| 115 | { |
| 116 | return false; |
| 117 | } |
| 118 | |
Jiri Pirko | 4418646 | 2017-10-13 14:00:59 +0200 | [diff] [blame] | 119 | static inline struct Qdisc *tcf_block_q(struct tcf_block *block) |
| 120 | { |
| 121 | return NULL; |
| 122 | } |
| 123 | |
| 124 | static inline struct net_device *tcf_block_dev(struct tcf_block *block) |
| 125 | { |
| 126 | return NULL; |
| 127 | } |
| 128 | |
Jiri Pirko | acb6744 | 2017-10-19 15:50:31 +0200 | [diff] [blame] | 129 | static inline |
| 130 | int tc_setup_cb_block_register(struct tcf_block *block, tc_setup_cb_t *cb, |
| 131 | void *cb_priv) |
| 132 | { |
| 133 | return 0; |
| 134 | } |
| 135 | |
| 136 | static inline |
| 137 | void tc_setup_cb_block_unregister(struct tcf_block *block, tc_setup_cb_t *cb, |
| 138 | void *cb_priv) |
| 139 | { |
| 140 | } |
| 141 | |
| 142 | static inline |
| 143 | void *tcf_block_cb_priv(struct tcf_block_cb *block_cb) |
| 144 | { |
| 145 | return NULL; |
| 146 | } |
| 147 | |
| 148 | static inline |
| 149 | struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block, |
| 150 | tc_setup_cb_t *cb, void *cb_ident) |
| 151 | { |
| 152 | return NULL; |
| 153 | } |
| 154 | |
| 155 | static inline |
| 156 | void tcf_block_cb_incref(struct tcf_block_cb *block_cb) |
| 157 | { |
| 158 | } |
| 159 | |
| 160 | static inline |
| 161 | unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb) |
| 162 | { |
| 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | static inline |
| 167 | struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block, |
| 168 | tc_setup_cb_t *cb, void *cb_ident, |
| 169 | void *cb_priv) |
| 170 | { |
| 171 | return NULL; |
| 172 | } |
| 173 | |
| 174 | static inline |
| 175 | int tcf_block_cb_register(struct tcf_block *block, |
| 176 | tc_setup_cb_t *cb, void *cb_ident, |
| 177 | void *cb_priv) |
| 178 | { |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | static inline |
| 183 | void __tcf_block_cb_unregister(struct tcf_block_cb *block_cb) |
| 184 | { |
| 185 | } |
| 186 | |
| 187 | static inline |
| 188 | void tcf_block_cb_unregister(struct tcf_block *block, |
| 189 | tc_setup_cb_t *cb, void *cb_ident) |
| 190 | { |
| 191 | } |
| 192 | |
Jiri Pirko | 87d8309 | 2017-05-17 11:07:54 +0200 | [diff] [blame] | 193 | static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
| 194 | struct tcf_result *res, bool compat_mode) |
| 195 | { |
| 196 | return TC_ACT_UNSPEC; |
| 197 | } |
Jiri Pirko | 8ae7003 | 2017-02-15 11:57:50 +0100 | [diff] [blame] | 198 | #endif |
Jiri Pirko | cf1facd | 2017-02-09 14:38:56 +0100 | [diff] [blame] | 199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | static inline unsigned long |
| 201 | __cls_set_class(unsigned long *clp, unsigned long cl) |
| 202 | { |
WANG Cong | a0efb80 | 2014-09-30 16:07:24 -0700 | [diff] [blame] | 203 | return xchg(clp, cl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | static inline unsigned long |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 207 | cls_set_class(struct Qdisc *q, unsigned long *clp, unsigned long cl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | { |
| 209 | unsigned long old_cl; |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 210 | |
| 211 | sch_tree_lock(q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | old_cl = __cls_set_class(clp, cl); |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 213 | sch_tree_unlock(q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | return old_cl; |
| 215 | } |
| 216 | |
| 217 | static inline void |
| 218 | tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base) |
| 219 | { |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 220 | struct Qdisc *q = tp->chain->block->q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | unsigned long cl; |
| 222 | |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 223 | /* Check q as it is not set for shared blocks. In that case, |
| 224 | * setting class is not supported. |
| 225 | */ |
| 226 | if (!q) |
| 227 | return; |
| 228 | cl = q->ops->cl_ops->bind_tcf(q, base, r->classid); |
| 229 | cl = cls_set_class(q, &r->class, cl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | if (cl) |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 231 | q->ops->cl_ops->unbind_tcf(q, cl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | static inline void |
| 235 | tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r) |
| 236 | { |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 237 | struct Qdisc *q = tp->chain->block->q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | unsigned long cl; |
| 239 | |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 240 | if (!q) |
| 241 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | if ((cl = __cls_set_class(&r->class, 0)) != 0) |
Jiri Pirko | 34e3759 | 2017-10-13 14:01:00 +0200 | [diff] [blame] | 243 | q->ops->cl_ops->unbind_tcf(q, cl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | } |
| 245 | |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 246 | struct tcf_exts { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | #ifdef CONFIG_NET_CLS_ACT |
WANG Cong | 33be627 | 2013-12-15 20:15:05 -0800 | [diff] [blame] | 248 | __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ |
WANG Cong | 22dc13c | 2016-08-13 22:35:00 -0700 | [diff] [blame] | 249 | int nr_actions; |
| 250 | struct tc_action **actions; |
Cong Wang | e4b95c4 | 2017-11-06 13:47:19 -0800 | [diff] [blame] | 251 | struct net *net; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | #endif |
WANG Cong | 5da57f4 | 2013-12-15 20:15:07 -0800 | [diff] [blame] | 253 | /* Map to export classifier specific extension TLV types to the |
| 254 | * generic extensions API. Unsupported extensions must be set to 0. |
| 255 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | int action; |
| 257 | int police; |
| 258 | }; |
| 259 | |
WANG Cong | b9a24bb | 2016-08-19 12:36:54 -0700 | [diff] [blame] | 260 | static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police) |
WANG Cong | 33be627 | 2013-12-15 20:15:05 -0800 | [diff] [blame] | 261 | { |
| 262 | #ifdef CONFIG_NET_CLS_ACT |
WANG Cong | 5da57f4 | 2013-12-15 20:15:07 -0800 | [diff] [blame] | 263 | exts->type = 0; |
WANG Cong | 22dc13c | 2016-08-13 22:35:00 -0700 | [diff] [blame] | 264 | exts->nr_actions = 0; |
Cong Wang | e4b95c4 | 2017-11-06 13:47:19 -0800 | [diff] [blame] | 265 | exts->net = NULL; |
WANG Cong | 22dc13c | 2016-08-13 22:35:00 -0700 | [diff] [blame] | 266 | exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *), |
| 267 | GFP_KERNEL); |
WANG Cong | b9a24bb | 2016-08-19 12:36:54 -0700 | [diff] [blame] | 268 | if (!exts->actions) |
| 269 | return -ENOMEM; |
WANG Cong | 33be627 | 2013-12-15 20:15:05 -0800 | [diff] [blame] | 270 | #endif |
WANG Cong | 5da57f4 | 2013-12-15 20:15:07 -0800 | [diff] [blame] | 271 | exts->action = action; |
| 272 | exts->police = police; |
WANG Cong | b9a24bb | 2016-08-19 12:36:54 -0700 | [diff] [blame] | 273 | return 0; |
WANG Cong | 33be627 | 2013-12-15 20:15:05 -0800 | [diff] [blame] | 274 | } |
| 275 | |
Cong Wang | e4b95c4 | 2017-11-06 13:47:19 -0800 | [diff] [blame] | 276 | /* Return false if the netns is being destroyed in cleanup_net(). Callers |
| 277 | * need to do cleanup synchronously in this case, otherwise may race with |
| 278 | * tc_action_net_exit(). Return true for other cases. |
| 279 | */ |
| 280 | static inline bool tcf_exts_get_net(struct tcf_exts *exts) |
| 281 | { |
| 282 | #ifdef CONFIG_NET_CLS_ACT |
| 283 | exts->net = maybe_get_net(exts->net); |
| 284 | return exts->net != NULL; |
| 285 | #else |
| 286 | return true; |
| 287 | #endif |
| 288 | } |
| 289 | |
| 290 | static inline void tcf_exts_put_net(struct tcf_exts *exts) |
| 291 | { |
| 292 | #ifdef CONFIG_NET_CLS_ACT |
| 293 | if (exts->net) |
| 294 | put_net(exts->net); |
| 295 | #endif |
| 296 | } |
| 297 | |
WANG Cong | 22dc13c | 2016-08-13 22:35:00 -0700 | [diff] [blame] | 298 | static inline void tcf_exts_to_list(const struct tcf_exts *exts, |
| 299 | struct list_head *actions) |
| 300 | { |
| 301 | #ifdef CONFIG_NET_CLS_ACT |
| 302 | int i; |
| 303 | |
| 304 | for (i = 0; i < exts->nr_actions; i++) { |
| 305 | struct tc_action *a = exts->actions[i]; |
| 306 | |
Hadar Hen Zion | fa5effe | 2016-09-27 11:09:51 +0300 | [diff] [blame] | 307 | list_add_tail(&a->list, actions); |
WANG Cong | 22dc13c | 2016-08-13 22:35:00 -0700 | [diff] [blame] | 308 | } |
| 309 | #endif |
| 310 | } |
| 311 | |
Jakub Kicinski | d897a63 | 2017-05-31 08:06:43 -0700 | [diff] [blame] | 312 | static inline void |
| 313 | tcf_exts_stats_update(const struct tcf_exts *exts, |
| 314 | u64 bytes, u64 packets, u64 lastuse) |
| 315 | { |
| 316 | #ifdef CONFIG_NET_CLS_ACT |
| 317 | int i; |
| 318 | |
| 319 | preempt_disable(); |
| 320 | |
| 321 | for (i = 0; i < exts->nr_actions; i++) { |
| 322 | struct tc_action *a = exts->actions[i]; |
| 323 | |
| 324 | tcf_action_stats_update(a, bytes, packets, lastuse); |
| 325 | } |
| 326 | |
| 327 | preempt_enable(); |
| 328 | #endif |
| 329 | } |
| 330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | /** |
Jiri Pirko | 3bcc0ce | 2017-08-04 14:28:58 +0200 | [diff] [blame] | 332 | * tcf_exts_has_actions - check if at least one action is present |
| 333 | * @exts: tc filter extensions handle |
| 334 | * |
| 335 | * Returns true if at least one action is present. |
| 336 | */ |
| 337 | static inline bool tcf_exts_has_actions(struct tcf_exts *exts) |
| 338 | { |
WANG Cong | 2734437e | 2016-08-13 22:34:59 -0700 | [diff] [blame] | 339 | #ifdef CONFIG_NET_CLS_ACT |
Jiri Pirko | 3bcc0ce | 2017-08-04 14:28:58 +0200 | [diff] [blame] | 340 | return exts->nr_actions; |
| 341 | #else |
| 342 | return false; |
| 343 | #endif |
| 344 | } |
WANG Cong | 2734437e | 2016-08-13 22:34:59 -0700 | [diff] [blame] | 345 | |
Jiri Pirko | 3bcc0ce | 2017-08-04 14:28:58 +0200 | [diff] [blame] | 346 | /** |
| 347 | * tcf_exts_has_one_action - check if exactly one action is present |
| 348 | * @exts: tc filter extensions handle |
| 349 | * |
| 350 | * Returns true if exactly one action is present. |
| 351 | */ |
| 352 | static inline bool tcf_exts_has_one_action(struct tcf_exts *exts) |
| 353 | { |
| 354 | #ifdef CONFIG_NET_CLS_ACT |
| 355 | return exts->nr_actions == 1; |
| 356 | #else |
| 357 | return false; |
| 358 | #endif |
| 359 | } |
WANG Cong | 2734437e | 2016-08-13 22:34:59 -0700 | [diff] [blame] | 360 | |
Jiri Pirko | af69afc | 2017-08-04 14:28:59 +0200 | [diff] [blame] | 361 | /** |
| 362 | * tcf_exts_exec - execute tc filter extensions |
| 363 | * @skb: socket buffer |
| 364 | * @exts: tc filter extensions handle |
| 365 | * @res: desired result |
| 366 | * |
Jiri Pirko | af089e7 | 2017-08-04 14:29:01 +0200 | [diff] [blame] | 367 | * Executes all configured extensions. Returns TC_ACT_OK on a normal execution, |
Jiri Pirko | af69afc | 2017-08-04 14:28:59 +0200 | [diff] [blame] | 368 | * a negative number if the filter must be considered unmatched or |
| 369 | * a positive action code (TC_ACT_*) which must be returned to the |
| 370 | * underlying layer. |
| 371 | */ |
| 372 | static inline int |
| 373 | tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, |
| 374 | struct tcf_result *res) |
| 375 | { |
| 376 | #ifdef CONFIG_NET_CLS_ACT |
Jiri Pirko | ec1a9cc | 2017-08-04 14:29:02 +0200 | [diff] [blame] | 377 | return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); |
Jiri Pirko | af69afc | 2017-08-04 14:28:59 +0200 | [diff] [blame] | 378 | #endif |
Jiri Pirko | af089e7 | 2017-08-04 14:29:01 +0200 | [diff] [blame] | 379 | return TC_ACT_OK; |
Jiri Pirko | af69afc | 2017-08-04 14:28:59 +0200 | [diff] [blame] | 380 | } |
| 381 | |
Joe Perches | 5c15257 | 2013-07-30 22:47:13 -0700 | [diff] [blame] | 382 | int tcf_exts_validate(struct net *net, struct tcf_proto *tp, |
| 383 | struct nlattr **tb, struct nlattr *rate_tlv, |
Alexander Aring | 50a5619 | 2018-01-18 11:20:52 -0500 | [diff] [blame] | 384 | struct tcf_exts *exts, bool ovr, |
| 385 | struct netlink_ext_ack *extack); |
WANG Cong | 18d0264 | 2014-09-25 10:26:37 -0700 | [diff] [blame] | 386 | void tcf_exts_destroy(struct tcf_exts *exts); |
Jiri Pirko | 9b0d444 | 2017-08-04 14:29:15 +0200 | [diff] [blame] | 387 | void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src); |
WANG Cong | 5da57f4 | 2013-12-15 20:15:07 -0800 | [diff] [blame] | 388 | int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts); |
| 389 | int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
| 391 | /** |
| 392 | * struct tcf_pkt_info - packet information |
| 393 | */ |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 394 | struct tcf_pkt_info { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | unsigned char * ptr; |
| 396 | int nexthdr; |
| 397 | }; |
| 398 | |
| 399 | #ifdef CONFIG_NET_EMATCH |
| 400 | |
| 401 | struct tcf_ematch_ops; |
| 402 | |
| 403 | /** |
| 404 | * struct tcf_ematch - extended match (ematch) |
| 405 | * |
| 406 | * @matchid: identifier to allow userspace to reidentify a match |
| 407 | * @flags: flags specifying attributes and the relation to other matches |
| 408 | * @ops: the operations lookup table of the corresponding ematch module |
| 409 | * @datalen: length of the ematch specific configuration data |
| 410 | * @data: ematch specific data |
| 411 | */ |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 412 | struct tcf_ematch { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | struct tcf_ematch_ops * ops; |
| 414 | unsigned long data; |
| 415 | unsigned int datalen; |
| 416 | u16 matchid; |
| 417 | u16 flags; |
John Fastabend | 82a470f | 2014-10-05 21:27:53 -0700 | [diff] [blame] | 418 | struct net *net; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | }; |
| 420 | |
| 421 | static inline int tcf_em_is_container(struct tcf_ematch *em) |
| 422 | { |
| 423 | return !em->ops; |
| 424 | } |
| 425 | |
| 426 | static inline int tcf_em_is_simple(struct tcf_ematch *em) |
| 427 | { |
| 428 | return em->flags & TCF_EM_SIMPLE; |
| 429 | } |
| 430 | |
| 431 | static inline int tcf_em_is_inverted(struct tcf_ematch *em) |
| 432 | { |
| 433 | return em->flags & TCF_EM_INVERT; |
| 434 | } |
| 435 | |
| 436 | static inline int tcf_em_last_match(struct tcf_ematch *em) |
| 437 | { |
| 438 | return (em->flags & TCF_EM_REL_MASK) == TCF_EM_REL_END; |
| 439 | } |
| 440 | |
| 441 | static inline int tcf_em_early_end(struct tcf_ematch *em, int result) |
| 442 | { |
| 443 | if (tcf_em_last_match(em)) |
| 444 | return 1; |
| 445 | |
| 446 | if (result == 0 && em->flags & TCF_EM_REL_AND) |
| 447 | return 1; |
| 448 | |
| 449 | if (result != 0 && em->flags & TCF_EM_REL_OR) |
| 450 | return 1; |
| 451 | |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * struct tcf_ematch_tree - ematch tree handle |
| 457 | * |
| 458 | * @hdr: ematch tree header supplied by userspace |
| 459 | * @matches: array of ematches |
| 460 | */ |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 461 | struct tcf_ematch_tree { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | struct tcf_ematch_tree_hdr hdr; |
| 463 | struct tcf_ematch * matches; |
| 464 | |
| 465 | }; |
| 466 | |
| 467 | /** |
| 468 | * struct tcf_ematch_ops - ematch module operations |
| 469 | * |
| 470 | * @kind: identifier (kind) of this ematch module |
| 471 | * @datalen: length of expected configuration data (optional) |
| 472 | * @change: called during validation (optional) |
| 473 | * @match: called during ematch tree evaluation, must return 1/0 |
| 474 | * @destroy: called during destroyage (optional) |
| 475 | * @dump: called during dumping process (optional) |
| 476 | * @owner: owner, must be set to THIS_MODULE |
| 477 | * @link: link to previous/next ematch module (internal use) |
| 478 | */ |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 479 | struct tcf_ematch_ops { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | int kind; |
| 481 | int datalen; |
John Fastabend | 82a470f | 2014-10-05 21:27:53 -0700 | [diff] [blame] | 482 | int (*change)(struct net *net, void *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | int, struct tcf_ematch *); |
| 484 | int (*match)(struct sk_buff *, struct tcf_ematch *, |
| 485 | struct tcf_pkt_info *); |
John Fastabend | 82a470f | 2014-10-05 21:27:53 -0700 | [diff] [blame] | 486 | void (*destroy)(struct tcf_ematch *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | int (*dump)(struct sk_buff *, struct tcf_ematch *); |
| 488 | struct module *owner; |
| 489 | struct list_head link; |
| 490 | }; |
| 491 | |
Joe Perches | 5c15257 | 2013-07-30 22:47:13 -0700 | [diff] [blame] | 492 | int tcf_em_register(struct tcf_ematch_ops *); |
| 493 | void tcf_em_unregister(struct tcf_ematch_ops *); |
| 494 | int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *, |
| 495 | struct tcf_ematch_tree *); |
John Fastabend | 82a470f | 2014-10-05 21:27:53 -0700 | [diff] [blame] | 496 | void tcf_em_tree_destroy(struct tcf_ematch_tree *); |
Joe Perches | 5c15257 | 2013-07-30 22:47:13 -0700 | [diff] [blame] | 497 | int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int); |
| 498 | int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, |
| 499 | struct tcf_pkt_info *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | |
| 501 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | * tcf_em_tree_match - evaulate an ematch tree |
| 503 | * |
| 504 | * @skb: socket buffer of the packet in question |
| 505 | * @tree: ematch tree to be used for evaluation |
| 506 | * @info: packet information examined by classifier |
| 507 | * |
| 508 | * This function matches @skb against the ematch tree in @tree by going |
| 509 | * through all ematches respecting their logic relations returning |
| 510 | * as soon as the result is obvious. |
| 511 | * |
| 512 | * Returns 1 if the ematch tree as-one matches, no ematches are configured |
| 513 | * or ematch is not enabled in the kernel, otherwise 0 is returned. |
| 514 | */ |
| 515 | static inline int tcf_em_tree_match(struct sk_buff *skb, |
| 516 | struct tcf_ematch_tree *tree, |
| 517 | struct tcf_pkt_info *info) |
| 518 | { |
| 519 | if (tree->hdr.nmatches) |
| 520 | return __tcf_em_tree_match(skb, tree, info); |
| 521 | else |
| 522 | return 1; |
| 523 | } |
| 524 | |
Patrick McHardy | db3d99c | 2007-07-11 19:46:26 -0700 | [diff] [blame] | 525 | #define MODULE_ALIAS_TCF_EMATCH(kind) MODULE_ALIAS("ematch-kind-" __stringify(kind)) |
| 526 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | #else /* CONFIG_NET_EMATCH */ |
| 528 | |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 529 | struct tcf_ematch_tree { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | }; |
| 531 | |
| 532 | #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) |
John Fastabend | 82a470f | 2014-10-05 21:27:53 -0700 | [diff] [blame] | 533 | #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | #define tcf_em_tree_dump(skb, t, tlv) (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) |
| 536 | |
| 537 | #endif /* CONFIG_NET_EMATCH */ |
| 538 | |
| 539 | static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer) |
| 540 | { |
| 541 | switch (layer) { |
| 542 | case TCF_LAYER_LINK: |
Wolfgang Bumiller | d3303a6 | 2018-01-18 11:32:36 +0100 | [diff] [blame] | 543 | return skb_mac_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | case TCF_LAYER_NETWORK: |
Arnaldo Carvalho de Melo | d56f90a | 2007-04-10 20:50:43 -0700 | [diff] [blame] | 545 | return skb_network_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | case TCF_LAYER_TRANSPORT: |
Arnaldo Carvalho de Melo | 9c70220 | 2007-04-25 18:04:18 -0700 | [diff] [blame] | 547 | return skb_transport_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | return NULL; |
| 551 | } |
| 552 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 553 | static inline int tcf_valid_offset(const struct sk_buff *skb, |
| 554 | const unsigned char *ptr, const int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | { |
David S. Miller | da521b2 | 2010-12-21 12:43:16 -0800 | [diff] [blame] | 556 | return likely((ptr + len) <= skb_tail_pointer(skb) && |
| 557 | ptr >= skb->head && |
| 558 | (ptr <= (ptr + len))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | } |
| 560 | |
| 561 | #ifdef CONFIG_NET_CLS_IND |
Denis V. Lunev | 0eeb8ff | 2007-12-04 01:15:45 -0800 | [diff] [blame] | 562 | #include <net/net_namespace.h> |
| 563 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | static inline int |
Alexander Aring | 1057c55 | 2018-01-18 11:20:54 -0500 | [diff] [blame] | 565 | tcf_change_indev(struct net *net, struct nlattr *indev_tlv, |
| 566 | struct netlink_ext_ack *extack) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | { |
WANG Cong | 2519a60 | 2014-01-09 16:14:02 -0800 | [diff] [blame] | 568 | char indev[IFNAMSIZ]; |
Patrick McHardy | c01003c | 2007-03-29 11:46:52 -0700 | [diff] [blame] | 569 | struct net_device *dev; |
| 570 | |
Alexander Aring | 1057c55 | 2018-01-18 11:20:54 -0500 | [diff] [blame] | 571 | if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) { |
| 572 | NL_SET_ERR_MSG(extack, "Interface name too long"); |
WANG Cong | 2519a60 | 2014-01-09 16:14:02 -0800 | [diff] [blame] | 573 | return -EINVAL; |
Alexander Aring | 1057c55 | 2018-01-18 11:20:54 -0500 | [diff] [blame] | 574 | } |
WANG Cong | 2519a60 | 2014-01-09 16:14:02 -0800 | [diff] [blame] | 575 | dev = __dev_get_by_name(net, indev); |
| 576 | if (!dev) |
| 577 | return -ENODEV; |
| 578 | return dev->ifindex; |
| 579 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | |
WANG Cong | 2519a60 | 2014-01-09 16:14:02 -0800 | [diff] [blame] | 581 | static inline bool |
| 582 | tcf_match_indev(struct sk_buff *skb, int ifindex) |
| 583 | { |
| 584 | if (!ifindex) |
| 585 | return true; |
| 586 | if (!skb->skb_iif) |
| 587 | return false; |
| 588 | return ifindex == skb->skb_iif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | } |
| 590 | #endif /* CONFIG_NET_CLS_IND */ |
| 591 | |
Jiri Pirko | 208c0f4 | 2017-10-19 15:50:32 +0200 | [diff] [blame] | 592 | int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts, |
| 593 | enum tc_setup_type type, void *type_data, bool err_stop); |
Jiri Pirko | 717503b | 2017-10-11 09:41:09 +0200 | [diff] [blame] | 594 | |
Jiri Pirko | 8c4083b | 2017-10-19 15:50:29 +0200 | [diff] [blame] | 595 | enum tc_block_command { |
| 596 | TC_BLOCK_BIND, |
| 597 | TC_BLOCK_UNBIND, |
| 598 | }; |
| 599 | |
| 600 | struct tc_block_offload { |
| 601 | enum tc_block_command command; |
| 602 | enum tcf_block_binder_type binder_type; |
| 603 | struct tcf_block *block; |
| 604 | }; |
| 605 | |
Jiri Pirko | 5fd9fc4 | 2017-08-07 10:15:29 +0200 | [diff] [blame] | 606 | struct tc_cls_common_offload { |
Jiri Pirko | 5fd9fc4 | 2017-08-07 10:15:29 +0200 | [diff] [blame] | 607 | u32 chain_index; |
| 608 | __be16 protocol; |
Jiri Pirko | d7c1c8d | 2017-08-07 10:15:30 +0200 | [diff] [blame] | 609 | u32 prio; |
Quentin Monnet | 8f0b425 | 2018-01-19 17:44:47 -0800 | [diff] [blame] | 610 | struct netlink_ext_ack *extack; |
Jiri Pirko | 5fd9fc4 | 2017-08-07 10:15:29 +0200 | [diff] [blame] | 611 | }; |
| 612 | |
John Fastabend | a1b7c5f | 2016-02-16 21:17:09 -0800 | [diff] [blame] | 613 | struct tc_cls_u32_knode { |
| 614 | struct tcf_exts *exts; |
John Fastabend | e014860 | 2016-02-17 14:59:30 -0800 | [diff] [blame] | 615 | struct tc_u32_sel *sel; |
John Fastabend | a1b7c5f | 2016-02-16 21:17:09 -0800 | [diff] [blame] | 616 | u32 handle; |
| 617 | u32 val; |
| 618 | u32 mask; |
| 619 | u32 link_handle; |
John Fastabend | e014860 | 2016-02-17 14:59:30 -0800 | [diff] [blame] | 620 | u8 fshift; |
John Fastabend | a1b7c5f | 2016-02-16 21:17:09 -0800 | [diff] [blame] | 621 | }; |
| 622 | |
| 623 | struct tc_cls_u32_hnode { |
| 624 | u32 handle; |
| 625 | u32 prio; |
| 626 | unsigned int divisor; |
| 627 | }; |
| 628 | |
| 629 | enum tc_clsu32_command { |
| 630 | TC_CLSU32_NEW_KNODE, |
| 631 | TC_CLSU32_REPLACE_KNODE, |
| 632 | TC_CLSU32_DELETE_KNODE, |
| 633 | TC_CLSU32_NEW_HNODE, |
| 634 | TC_CLSU32_REPLACE_HNODE, |
| 635 | TC_CLSU32_DELETE_HNODE, |
| 636 | }; |
| 637 | |
| 638 | struct tc_cls_u32_offload { |
Jiri Pirko | 5fd9fc4 | 2017-08-07 10:15:29 +0200 | [diff] [blame] | 639 | struct tc_cls_common_offload common; |
John Fastabend | a1b7c5f | 2016-02-16 21:17:09 -0800 | [diff] [blame] | 640 | /* knode values */ |
| 641 | enum tc_clsu32_command command; |
| 642 | union { |
| 643 | struct tc_cls_u32_knode knode; |
| 644 | struct tc_cls_u32_hnode hnode; |
| 645 | }; |
| 646 | }; |
| 647 | |
Jiri Pirko | 7b06e8a | 2017-08-09 14:30:35 +0200 | [diff] [blame] | 648 | static inline bool tc_can_offload(const struct net_device *dev) |
John Fastabend | 6843e7a | 2016-02-26 07:53:49 -0800 | [diff] [blame] | 649 | { |
Jiri Pirko | 70b5aee | 2017-11-01 11:47:41 +0100 | [diff] [blame] | 650 | return dev->features & NETIF_F_HW_TC; |
John Fastabend | 6843e7a | 2016-02-26 07:53:49 -0800 | [diff] [blame] | 651 | } |
| 652 | |
Quentin Monnet | f9eda14 | 2018-01-19 17:44:48 -0800 | [diff] [blame] | 653 | static inline bool tc_can_offload_extack(const struct net_device *dev, |
| 654 | struct netlink_ext_ack *extack) |
| 655 | { |
| 656 | bool can = tc_can_offload(dev); |
| 657 | |
| 658 | if (!can) |
| 659 | NL_SET_ERR_MSG(extack, "TC offload is disabled on net device"); |
| 660 | |
| 661 | return can; |
| 662 | } |
| 663 | |
Jakub Kicinski | 878db9f | 2018-01-25 14:00:43 -0800 | [diff] [blame] | 664 | static inline bool |
| 665 | tc_cls_can_offload_and_chain0(const struct net_device *dev, |
| 666 | struct tc_cls_common_offload *common) |
| 667 | { |
| 668 | if (!tc_can_offload_extack(dev, common->extack)) |
| 669 | return false; |
| 670 | if (common->chain_index) { |
| 671 | NL_SET_ERR_MSG(common->extack, |
| 672 | "Driver supports only offload of chain 0"); |
| 673 | return false; |
| 674 | } |
| 675 | return true; |
| 676 | } |
| 677 | |
Hadar Hen Zion | 55330f0 | 2016-12-01 14:06:33 +0200 | [diff] [blame] | 678 | static inline bool tc_skip_hw(u32 flags) |
| 679 | { |
| 680 | return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false; |
| 681 | } |
| 682 | |
Samudrala, Sridhar | d34e3e1 | 2016-05-12 17:08:23 -0700 | [diff] [blame] | 683 | static inline bool tc_skip_sw(u32 flags) |
| 684 | { |
| 685 | return (flags & TCA_CLS_FLAGS_SKIP_SW) ? true : false; |
| 686 | } |
| 687 | |
| 688 | /* SKIP_HW and SKIP_SW are mutually exclusive flags. */ |
| 689 | static inline bool tc_flags_valid(u32 flags) |
| 690 | { |
Marcelo Ricardo Leitner | 81c7288 | 2018-05-13 17:44:27 -0300 | [diff] [blame] | 691 | if (flags & ~(TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW | |
| 692 | TCA_CLS_FLAGS_VERBOSE)) |
Samudrala, Sridhar | d34e3e1 | 2016-05-12 17:08:23 -0700 | [diff] [blame] | 693 | return false; |
| 694 | |
Marcelo Ricardo Leitner | 81c7288 | 2018-05-13 17:44:27 -0300 | [diff] [blame] | 695 | flags &= TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW; |
Samudrala, Sridhar | d34e3e1 | 2016-05-12 17:08:23 -0700 | [diff] [blame] | 696 | if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | TCA_CLS_FLAGS_SKIP_SW))) |
| 697 | return false; |
| 698 | |
| 699 | return true; |
| 700 | } |
| 701 | |
Or Gerlitz | e696028 | 2017-02-16 10:31:12 +0200 | [diff] [blame] | 702 | static inline bool tc_in_hw(u32 flags) |
| 703 | { |
| 704 | return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false; |
| 705 | } |
| 706 | |
Jakub Kicinski | 34832e1 | 2018-01-24 12:54:14 -0800 | [diff] [blame] | 707 | static inline void |
| 708 | tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common, |
| 709 | const struct tcf_proto *tp, u32 flags, |
| 710 | struct netlink_ext_ack *extack) |
| 711 | { |
| 712 | cls_common->chain_index = tp->chain->index; |
| 713 | cls_common->protocol = tp->protocol; |
| 714 | cls_common->prio = tp->prio; |
Marcelo Ricardo Leitner | 81c7288 | 2018-05-13 17:44:27 -0300 | [diff] [blame] | 715 | if (tc_skip_sw(flags) || flags & TCA_CLS_FLAGS_VERBOSE) |
Jakub Kicinski | 34832e1 | 2018-01-24 12:54:14 -0800 | [diff] [blame] | 716 | cls_common->extack = extack; |
| 717 | } |
| 718 | |
Amir Vadai | 5b33f48 | 2016-03-08 12:42:29 +0200 | [diff] [blame] | 719 | enum tc_fl_command { |
| 720 | TC_CLSFLOWER_REPLACE, |
| 721 | TC_CLSFLOWER_DESTROY, |
Amir Vadai | 10cbc68 | 2016-05-13 12:55:37 +0000 | [diff] [blame] | 722 | TC_CLSFLOWER_STATS, |
Amir Vadai | 5b33f48 | 2016-03-08 12:42:29 +0200 | [diff] [blame] | 723 | }; |
| 724 | |
| 725 | struct tc_cls_flower_offload { |
Jiri Pirko | 5fd9fc4 | 2017-08-07 10:15:29 +0200 | [diff] [blame] | 726 | struct tc_cls_common_offload common; |
Amir Vadai | 5b33f48 | 2016-03-08 12:42:29 +0200 | [diff] [blame] | 727 | enum tc_fl_command command; |
Amir Vadai | 8208d21 | 2016-03-11 11:08:45 +0200 | [diff] [blame] | 728 | unsigned long cookie; |
Amir Vadai | 5b33f48 | 2016-03-08 12:42:29 +0200 | [diff] [blame] | 729 | struct flow_dissector *dissector; |
| 730 | struct fl_flow_key *mask; |
| 731 | struct fl_flow_key *key; |
| 732 | struct tcf_exts *exts; |
Amritha Nambiar | 384c181 | 2017-10-27 02:35:34 -0700 | [diff] [blame] | 733 | u32 classid; |
Amir Vadai | 5b33f48 | 2016-03-08 12:42:29 +0200 | [diff] [blame] | 734 | }; |
| 735 | |
Yotam Gigi | b87f793 | 2016-07-21 12:03:12 +0200 | [diff] [blame] | 736 | enum tc_matchall_command { |
| 737 | TC_CLSMATCHALL_REPLACE, |
| 738 | TC_CLSMATCHALL_DESTROY, |
| 739 | }; |
| 740 | |
| 741 | struct tc_cls_matchall_offload { |
Jiri Pirko | 5fd9fc4 | 2017-08-07 10:15:29 +0200 | [diff] [blame] | 742 | struct tc_cls_common_offload common; |
Yotam Gigi | b87f793 | 2016-07-21 12:03:12 +0200 | [diff] [blame] | 743 | enum tc_matchall_command command; |
| 744 | struct tcf_exts *exts; |
| 745 | unsigned long cookie; |
| 746 | }; |
| 747 | |
Jakub Kicinski | 332ae8e | 2016-09-21 11:43:53 +0100 | [diff] [blame] | 748 | enum tc_clsbpf_command { |
Jakub Kicinski | 102740b | 2017-12-19 13:32:13 -0800 | [diff] [blame] | 749 | TC_CLSBPF_OFFLOAD, |
Jakub Kicinski | 68d6406 | 2016-09-21 11:44:02 +0100 | [diff] [blame] | 750 | TC_CLSBPF_STATS, |
Jakub Kicinski | 332ae8e | 2016-09-21 11:43:53 +0100 | [diff] [blame] | 751 | }; |
| 752 | |
| 753 | struct tc_cls_bpf_offload { |
Jiri Pirko | 5fd9fc4 | 2017-08-07 10:15:29 +0200 | [diff] [blame] | 754 | struct tc_cls_common_offload common; |
Jakub Kicinski | 332ae8e | 2016-09-21 11:43:53 +0100 | [diff] [blame] | 755 | enum tc_clsbpf_command command; |
| 756 | struct tcf_exts *exts; |
| 757 | struct bpf_prog *prog; |
Jakub Kicinski | 102740b | 2017-12-19 13:32:13 -0800 | [diff] [blame] | 758 | struct bpf_prog *oldprog; |
Jakub Kicinski | 332ae8e | 2016-09-21 11:43:53 +0100 | [diff] [blame] | 759 | const char *name; |
| 760 | bool exts_integrated; |
| 761 | }; |
| 762 | |
Amritha Nambiar | 4e8b86c | 2017-09-07 04:00:06 -0700 | [diff] [blame] | 763 | struct tc_mqprio_qopt_offload { |
| 764 | /* struct tc_mqprio_qopt must always be the first element */ |
| 765 | struct tc_mqprio_qopt qopt; |
| 766 | u16 mode; |
| 767 | u16 shaper; |
| 768 | u32 flags; |
| 769 | u64 min_rate[TC_QOPT_MAX_QUEUE]; |
| 770 | u64 max_rate[TC_QOPT_MAX_QUEUE]; |
| 771 | }; |
Jamal Hadi Salim | 1045ba7 | 2017-01-24 07:02:41 -0500 | [diff] [blame] | 772 | |
| 773 | /* This structure holds cookie structure that is passed from user |
| 774 | * to the kernel for actions and classifiers |
| 775 | */ |
| 776 | struct tc_cookie { |
| 777 | u8 *data; |
| 778 | u32 len; |
| 779 | }; |
Nogah Frankel | 602f3ba | 2017-11-06 07:23:41 +0100 | [diff] [blame] | 780 | |
Nogah Frankel | f34b4aa | 2018-01-10 14:59:58 +0100 | [diff] [blame] | 781 | struct tc_qopt_offload_stats { |
| 782 | struct gnet_stats_basic_packed *bstats; |
| 783 | struct gnet_stats_queue *qstats; |
| 784 | }; |
| 785 | |
Jakub Kicinski | f971b13 | 2018-05-25 21:53:35 -0700 | [diff] [blame] | 786 | enum tc_mq_command { |
| 787 | TC_MQ_CREATE, |
| 788 | TC_MQ_DESTROY, |
Jakub Kicinski | 47c669a4 | 2018-05-25 21:53:37 -0700 | [diff] [blame] | 789 | TC_MQ_STATS, |
Jakub Kicinski | f971b13 | 2018-05-25 21:53:35 -0700 | [diff] [blame] | 790 | }; |
| 791 | |
| 792 | struct tc_mq_qopt_offload { |
| 793 | enum tc_mq_command command; |
| 794 | u32 handle; |
Jakub Kicinski | 47c669a4 | 2018-05-25 21:53:37 -0700 | [diff] [blame] | 795 | struct tc_qopt_offload_stats stats; |
Jakub Kicinski | f971b13 | 2018-05-25 21:53:35 -0700 | [diff] [blame] | 796 | }; |
| 797 | |
Nogah Frankel | 602f3ba | 2017-11-06 07:23:41 +0100 | [diff] [blame] | 798 | enum tc_red_command { |
| 799 | TC_RED_REPLACE, |
| 800 | TC_RED_DESTROY, |
| 801 | TC_RED_STATS, |
| 802 | TC_RED_XSTATS, |
| 803 | }; |
| 804 | |
| 805 | struct tc_red_qopt_offload_params { |
| 806 | u32 min; |
| 807 | u32 max; |
| 808 | u32 probability; |
| 809 | bool is_ecn; |
Jakub Kicinski | 416ef9b | 2018-01-14 20:01:26 -0800 | [diff] [blame] | 810 | struct gnet_stats_queue *qstats; |
Nogah Frankel | 602f3ba | 2017-11-06 07:23:41 +0100 | [diff] [blame] | 811 | }; |
Nogah Frankel | 602f3ba | 2017-11-06 07:23:41 +0100 | [diff] [blame] | 812 | |
| 813 | struct tc_red_qopt_offload { |
| 814 | enum tc_red_command command; |
| 815 | u32 handle; |
| 816 | u32 parent; |
| 817 | union { |
| 818 | struct tc_red_qopt_offload_params set; |
Nogah Frankel | f34b4aa | 2018-01-10 14:59:58 +0100 | [diff] [blame] | 819 | struct tc_qopt_offload_stats stats; |
Nogah Frankel | 602f3ba | 2017-11-06 07:23:41 +0100 | [diff] [blame] | 820 | struct red_stats *xstats; |
| 821 | }; |
| 822 | }; |
| 823 | |
Nogah Frankel | 7fdb61b | 2018-01-14 12:33:15 +0100 | [diff] [blame] | 824 | enum tc_prio_command { |
| 825 | TC_PRIO_REPLACE, |
| 826 | TC_PRIO_DESTROY, |
| 827 | TC_PRIO_STATS, |
Nogah Frankel | b9c7a7a | 2018-02-28 10:45:06 +0100 | [diff] [blame] | 828 | TC_PRIO_GRAFT, |
Nogah Frankel | 7fdb61b | 2018-01-14 12:33:15 +0100 | [diff] [blame] | 829 | }; |
| 830 | |
| 831 | struct tc_prio_qopt_offload_params { |
| 832 | int bands; |
| 833 | u8 priomap[TC_PRIO_MAX + 1]; |
| 834 | /* In case that a prio qdisc is offloaded and now is changed to a |
| 835 | * non-offloadedable config, it needs to update the backlog & qlen |
| 836 | * values to negate the HW backlog & qlen values (and only them). |
| 837 | */ |
| 838 | struct gnet_stats_queue *qstats; |
| 839 | }; |
| 840 | |
Nogah Frankel | b9c7a7a | 2018-02-28 10:45:06 +0100 | [diff] [blame] | 841 | struct tc_prio_qopt_offload_graft_params { |
| 842 | u8 band; |
| 843 | u32 child_handle; |
| 844 | }; |
| 845 | |
Nogah Frankel | 7fdb61b | 2018-01-14 12:33:15 +0100 | [diff] [blame] | 846 | struct tc_prio_qopt_offload { |
| 847 | enum tc_prio_command command; |
| 848 | u32 handle; |
| 849 | u32 parent; |
| 850 | union { |
| 851 | struct tc_prio_qopt_offload_params replace_params; |
| 852 | struct tc_qopt_offload_stats stats; |
Nogah Frankel | b9c7a7a | 2018-02-28 10:45:06 +0100 | [diff] [blame] | 853 | struct tc_prio_qopt_offload_graft_params graft_params; |
Nogah Frankel | 7fdb61b | 2018-01-14 12:33:15 +0100 | [diff] [blame] | 854 | }; |
| 855 | }; |
Nogah Frankel | b9c7a7a | 2018-02-28 10:45:06 +0100 | [diff] [blame] | 856 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | #endif |