2 * net/sched/cls_flower.c Flower classifier
4 * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <linux/rhashtable.h>
16 #include <linux/workqueue.h>
18 #include <linux/if_ether.h>
19 #include <linux/in6.h>
21 #include <linux/mpls.h>
23 #include <net/sch_generic.h>
24 #include <net/pkt_cls.h>
26 #include <net/flow_dissector.h>
29 #include <net/dst_metadata.h>
33 struct flow_dissector_key_control control;
34 struct flow_dissector_key_control enc_control;
35 struct flow_dissector_key_basic basic;
36 struct flow_dissector_key_eth_addrs eth;
37 struct flow_dissector_key_vlan vlan;
39 struct flow_dissector_key_ipv4_addrs ipv4;
40 struct flow_dissector_key_ipv6_addrs ipv6;
42 struct flow_dissector_key_ports tp;
43 struct flow_dissector_key_icmp icmp;
44 struct flow_dissector_key_arp arp;
45 struct flow_dissector_key_keyid enc_key_id;
47 struct flow_dissector_key_ipv4_addrs enc_ipv4;
48 struct flow_dissector_key_ipv6_addrs enc_ipv6;
50 struct flow_dissector_key_ports enc_tp;
51 struct flow_dissector_key_mpls mpls;
52 struct flow_dissector_key_tcp tcp;
53 struct flow_dissector_key_ip ip;
54 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
56 struct fl_flow_mask_range {
57 unsigned short int start;
58 unsigned short int end;
62 struct fl_flow_key key;
63 struct fl_flow_mask_range range;
69 struct fl_flow_mask mask;
70 struct flow_dissector dissector;
72 struct list_head filters;
73 struct rhashtable_params ht_params;
75 struct work_struct work;
78 struct idr handle_idr;
81 struct cls_fl_filter {
82 struct rhash_head ht_node;
83 struct fl_flow_key mkey;
85 struct tcf_result res;
86 struct fl_flow_key key;
87 struct list_head list;
91 struct net_device *hw_dev;
94 static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
96 return mask->range.end - mask->range.start;
99 static void fl_mask_update_range(struct fl_flow_mask *mask)
101 const u8 *bytes = (const u8 *) &mask->key;
102 size_t size = sizeof(mask->key);
103 size_t i, first = 0, last = size - 1;
105 for (i = 0; i < sizeof(mask->key); i++) {
112 mask->range.start = rounddown(first, sizeof(long));
113 mask->range.end = roundup(last + 1, sizeof(long));
116 static void *fl_key_get_start(struct fl_flow_key *key,
117 const struct fl_flow_mask *mask)
119 return (u8 *) key + mask->range.start;
122 static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
123 struct fl_flow_mask *mask)
125 const long *lkey = fl_key_get_start(key, mask);
126 const long *lmask = fl_key_get_start(&mask->key, mask);
127 long *lmkey = fl_key_get_start(mkey, mask);
130 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
131 *lmkey++ = *lkey++ & *lmask++;
134 static void fl_clear_masked_range(struct fl_flow_key *key,
135 struct fl_flow_mask *mask)
137 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
140 static struct cls_fl_filter *fl_lookup(struct cls_fl_head *head,
141 struct fl_flow_key *mkey)
143 return rhashtable_lookup_fast(&head->ht,
144 fl_key_get_start(mkey, &head->mask),
148 static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
149 struct tcf_result *res)
151 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
152 struct cls_fl_filter *f;
153 struct fl_flow_key skb_key;
154 struct fl_flow_key skb_mkey;
155 struct ip_tunnel_info *info;
157 if (!atomic_read(&head->ht.nelems))
160 fl_clear_masked_range(&skb_key, &head->mask);
162 info = skb_tunnel_info(skb);
164 struct ip_tunnel_key *key = &info->key;
166 switch (ip_tunnel_info_af(info)) {
168 skb_key.enc_control.addr_type =
169 FLOW_DISSECTOR_KEY_IPV4_ADDRS;
170 skb_key.enc_ipv4.src = key->u.ipv4.src;
171 skb_key.enc_ipv4.dst = key->u.ipv4.dst;
174 skb_key.enc_control.addr_type =
175 FLOW_DISSECTOR_KEY_IPV6_ADDRS;
176 skb_key.enc_ipv6.src = key->u.ipv6.src;
177 skb_key.enc_ipv6.dst = key->u.ipv6.dst;
181 skb_key.enc_key_id.keyid = tunnel_id_to_key32(key->tun_id);
182 skb_key.enc_tp.src = key->tp_src;
183 skb_key.enc_tp.dst = key->tp_dst;
186 skb_key.indev_ifindex = skb->skb_iif;
187 /* skb_flow_dissect() does not set n_proto in case an unknown protocol,
188 * so do it rather here.
190 skb_key.basic.n_proto = skb->protocol;
191 skb_flow_dissect(skb, &head->dissector, &skb_key, 0);
193 fl_set_masked_key(&skb_mkey, &skb_key, &head->mask);
195 f = fl_lookup(head, &skb_mkey);
196 if (f && !tc_skip_sw(f->flags)) {
198 return tcf_exts_exec(skb, &f->exts, res);
203 static int fl_init(struct tcf_proto *tp)
205 struct cls_fl_head *head;
207 head = kzalloc(sizeof(*head), GFP_KERNEL);
211 INIT_LIST_HEAD_RCU(&head->filters);
212 rcu_assign_pointer(tp->root, head);
213 idr_init(&head->handle_idr);
218 static void fl_destroy_filter(struct rcu_head *head)
220 struct cls_fl_filter *f = container_of(head, struct cls_fl_filter, rcu);
222 tcf_exts_destroy(&f->exts);
226 static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
228 struct tc_cls_flower_offload cls_flower = {};
229 struct net_device *dev = f->hw_dev;
231 if (!tc_can_offload(dev))
234 tc_cls_common_offload_init(&cls_flower.common, tp);
235 cls_flower.command = TC_CLSFLOWER_DESTROY;
236 cls_flower.cookie = (unsigned long) f;
237 cls_flower.egress_dev = f->hw_dev != tp->q->dev_queue->dev;
239 dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, &cls_flower);
242 static int fl_hw_replace_filter(struct tcf_proto *tp,
243 struct flow_dissector *dissector,
244 struct fl_flow_key *mask,
245 struct cls_fl_filter *f)
247 struct net_device *dev = tp->q->dev_queue->dev;
248 struct tc_cls_flower_offload cls_flower = {};
251 if (!tc_can_offload(dev)) {
252 if (tcf_exts_get_dev(dev, &f->exts, &f->hw_dev) ||
253 (f->hw_dev && !tc_can_offload(f->hw_dev))) {
255 return tc_skip_sw(f->flags) ? -EINVAL : 0;
258 cls_flower.egress_dev = true;
263 tc_cls_common_offload_init(&cls_flower.common, tp);
264 cls_flower.command = TC_CLSFLOWER_REPLACE;
265 cls_flower.cookie = (unsigned long) f;
266 cls_flower.dissector = dissector;
267 cls_flower.mask = mask;
268 cls_flower.key = &f->mkey;
269 cls_flower.exts = &f->exts;
271 err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER,
274 f->flags |= TCA_CLS_FLAGS_IN_HW;
276 if (tc_skip_sw(f->flags))
281 static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
283 struct tc_cls_flower_offload cls_flower = {};
284 struct net_device *dev = f->hw_dev;
286 if (!tc_can_offload(dev))
289 tc_cls_common_offload_init(&cls_flower.common, tp);
290 cls_flower.command = TC_CLSFLOWER_STATS;
291 cls_flower.cookie = (unsigned long) f;
292 cls_flower.exts = &f->exts;
293 cls_flower.egress_dev = f->hw_dev != tp->q->dev_queue->dev;
295 dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER,
299 static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f)
301 struct cls_fl_head *head = rtnl_dereference(tp->root);
303 idr_remove_ext(&head->handle_idr, f->handle);
304 list_del_rcu(&f->list);
305 if (!tc_skip_hw(f->flags))
306 fl_hw_destroy_filter(tp, f);
307 tcf_unbind_filter(tp, &f->res);
308 call_rcu(&f->rcu, fl_destroy_filter);
311 static void fl_destroy_sleepable(struct work_struct *work)
313 struct cls_fl_head *head = container_of(work, struct cls_fl_head,
315 if (head->mask_assigned)
316 rhashtable_destroy(&head->ht);
318 module_put(THIS_MODULE);
321 static void fl_destroy_rcu(struct rcu_head *rcu)
323 struct cls_fl_head *head = container_of(rcu, struct cls_fl_head, rcu);
325 INIT_WORK(&head->work, fl_destroy_sleepable);
326 schedule_work(&head->work);
329 static void fl_destroy(struct tcf_proto *tp)
331 struct cls_fl_head *head = rtnl_dereference(tp->root);
332 struct cls_fl_filter *f, *next;
334 list_for_each_entry_safe(f, next, &head->filters, list)
336 idr_destroy(&head->handle_idr);
338 __module_get(THIS_MODULE);
339 call_rcu(&head->rcu, fl_destroy_rcu);
342 static void *fl_get(struct tcf_proto *tp, u32 handle)
344 struct cls_fl_head *head = rtnl_dereference(tp->root);
346 return idr_find_ext(&head->handle_idr, handle);
349 static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
350 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
351 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
352 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
354 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
355 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
356 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
357 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
358 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
359 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
360 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
361 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
362 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
363 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
364 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
365 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
366 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
367 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
368 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
369 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
370 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
371 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
372 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
373 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
374 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
375 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
376 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
377 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
378 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
379 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
380 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
381 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
382 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
383 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
384 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
385 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
386 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
387 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
388 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
389 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
390 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
391 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
392 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
393 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
394 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
395 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
396 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
397 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
398 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
399 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
400 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
401 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
402 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
403 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
404 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
405 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
406 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
407 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
408 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
409 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
410 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
411 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
412 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
413 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
414 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
415 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
416 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
417 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
418 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
419 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
420 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
421 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
422 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
423 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
424 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
425 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
428 static void fl_set_key_val(struct nlattr **tb,
429 void *val, int val_type,
430 void *mask, int mask_type, int len)
434 memcpy(val, nla_data(tb[val_type]), len);
435 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
436 memset(mask, 0xff, len);
438 memcpy(mask, nla_data(tb[mask_type]), len);
441 static int fl_set_key_mpls(struct nlattr **tb,
442 struct flow_dissector_key_mpls *key_val,
443 struct flow_dissector_key_mpls *key_mask)
445 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
446 key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
447 key_mask->mpls_ttl = MPLS_TTL_MASK;
449 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
450 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
452 if (bos & ~MPLS_BOS_MASK)
454 key_val->mpls_bos = bos;
455 key_mask->mpls_bos = MPLS_BOS_MASK;
457 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
458 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
460 if (tc & ~MPLS_TC_MASK)
462 key_val->mpls_tc = tc;
463 key_mask->mpls_tc = MPLS_TC_MASK;
465 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
466 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
468 if (label & ~MPLS_LABEL_MASK)
470 key_val->mpls_label = label;
471 key_mask->mpls_label = MPLS_LABEL_MASK;
476 static void fl_set_key_vlan(struct nlattr **tb,
477 struct flow_dissector_key_vlan *key_val,
478 struct flow_dissector_key_vlan *key_mask)
480 #define VLAN_PRIORITY_MASK 0x7
482 if (tb[TCA_FLOWER_KEY_VLAN_ID]) {
484 nla_get_u16(tb[TCA_FLOWER_KEY_VLAN_ID]) & VLAN_VID_MASK;
485 key_mask->vlan_id = VLAN_VID_MASK;
487 if (tb[TCA_FLOWER_KEY_VLAN_PRIO]) {
488 key_val->vlan_priority =
489 nla_get_u8(tb[TCA_FLOWER_KEY_VLAN_PRIO]) &
491 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
495 static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
496 u32 *dissector_key, u32 *dissector_mask,
497 u32 flower_flag_bit, u32 dissector_flag_bit)
499 if (flower_mask & flower_flag_bit) {
500 *dissector_mask |= dissector_flag_bit;
501 if (flower_key & flower_flag_bit)
502 *dissector_key |= dissector_flag_bit;
506 static int fl_set_key_flags(struct nlattr **tb,
507 u32 *flags_key, u32 *flags_mask)
511 /* mask is mandatory for flags */
512 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK])
515 key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS]));
516 mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
521 fl_set_key_flag(key, mask, flags_key, flags_mask,
522 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
527 static void fl_set_key_ip(struct nlattr **tb,
528 struct flow_dissector_key_ip *key,
529 struct flow_dissector_key_ip *mask)
531 fl_set_key_val(tb, &key->tos, TCA_FLOWER_KEY_IP_TOS,
532 &mask->tos, TCA_FLOWER_KEY_IP_TOS_MASK,
535 fl_set_key_val(tb, &key->ttl, TCA_FLOWER_KEY_IP_TTL,
536 &mask->ttl, TCA_FLOWER_KEY_IP_TTL_MASK,
540 static int fl_set_key(struct net *net, struct nlattr **tb,
541 struct fl_flow_key *key, struct fl_flow_key *mask)
545 #ifdef CONFIG_NET_CLS_IND
546 if (tb[TCA_FLOWER_INDEV]) {
547 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]);
550 key->indev_ifindex = err;
551 mask->indev_ifindex = 0xffffffff;
555 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
556 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
557 sizeof(key->eth.dst));
558 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
559 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
560 sizeof(key->eth.src));
562 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
563 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
565 if (ethertype == htons(ETH_P_8021Q)) {
566 fl_set_key_vlan(tb, &key->vlan, &mask->vlan);
567 fl_set_key_val(tb, &key->basic.n_proto,
568 TCA_FLOWER_KEY_VLAN_ETH_TYPE,
569 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
570 sizeof(key->basic.n_proto));
572 key->basic.n_proto = ethertype;
573 mask->basic.n_proto = cpu_to_be16(~0);
577 if (key->basic.n_proto == htons(ETH_P_IP) ||
578 key->basic.n_proto == htons(ETH_P_IPV6)) {
579 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
580 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
581 sizeof(key->basic.ip_proto));
582 fl_set_key_ip(tb, &key->ip, &mask->ip);
585 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
586 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
587 mask->control.addr_type = ~0;
588 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
589 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
590 sizeof(key->ipv4.src));
591 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
592 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
593 sizeof(key->ipv4.dst));
594 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
595 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
596 mask->control.addr_type = ~0;
597 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
598 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
599 sizeof(key->ipv6.src));
600 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
601 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
602 sizeof(key->ipv6.dst));
605 if (key->basic.ip_proto == IPPROTO_TCP) {
606 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
607 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
608 sizeof(key->tp.src));
609 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
610 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
611 sizeof(key->tp.dst));
612 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
613 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
614 sizeof(key->tcp.flags));
615 } else if (key->basic.ip_proto == IPPROTO_UDP) {
616 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
617 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
618 sizeof(key->tp.src));
619 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
620 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
621 sizeof(key->tp.dst));
622 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
623 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
624 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
625 sizeof(key->tp.src));
626 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
627 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
628 sizeof(key->tp.dst));
629 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
630 key->basic.ip_proto == IPPROTO_ICMP) {
631 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
633 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
634 sizeof(key->icmp.type));
635 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
637 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
638 sizeof(key->icmp.code));
639 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
640 key->basic.ip_proto == IPPROTO_ICMPV6) {
641 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
643 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
644 sizeof(key->icmp.type));
645 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
647 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
648 sizeof(key->icmp.code));
649 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
650 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
651 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls);
654 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
655 key->basic.n_proto == htons(ETH_P_RARP)) {
656 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
657 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
658 sizeof(key->arp.sip));
659 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
660 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
661 sizeof(key->arp.tip));
662 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
663 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
664 sizeof(key->arp.op));
665 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
666 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
667 sizeof(key->arp.sha));
668 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
669 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
670 sizeof(key->arp.tha));
673 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
674 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
675 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
676 mask->enc_control.addr_type = ~0;
677 fl_set_key_val(tb, &key->enc_ipv4.src,
678 TCA_FLOWER_KEY_ENC_IPV4_SRC,
680 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
681 sizeof(key->enc_ipv4.src));
682 fl_set_key_val(tb, &key->enc_ipv4.dst,
683 TCA_FLOWER_KEY_ENC_IPV4_DST,
685 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
686 sizeof(key->enc_ipv4.dst));
689 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
690 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
691 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
692 mask->enc_control.addr_type = ~0;
693 fl_set_key_val(tb, &key->enc_ipv6.src,
694 TCA_FLOWER_KEY_ENC_IPV6_SRC,
696 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
697 sizeof(key->enc_ipv6.src));
698 fl_set_key_val(tb, &key->enc_ipv6.dst,
699 TCA_FLOWER_KEY_ENC_IPV6_DST,
701 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
702 sizeof(key->enc_ipv6.dst));
705 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
706 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
707 sizeof(key->enc_key_id.keyid));
709 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
710 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
711 sizeof(key->enc_tp.src));
713 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
714 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
715 sizeof(key->enc_tp.dst));
717 if (tb[TCA_FLOWER_KEY_FLAGS])
718 ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags);
723 static bool fl_mask_eq(struct fl_flow_mask *mask1,
724 struct fl_flow_mask *mask2)
726 const long *lmask1 = fl_key_get_start(&mask1->key, mask1);
727 const long *lmask2 = fl_key_get_start(&mask2->key, mask2);
729 return !memcmp(&mask1->range, &mask2->range, sizeof(mask1->range)) &&
730 !memcmp(lmask1, lmask2, fl_mask_range(mask1));
733 static const struct rhashtable_params fl_ht_params = {
734 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
735 .head_offset = offsetof(struct cls_fl_filter, ht_node),
736 .automatic_shrinking = true,
739 static int fl_init_hashtable(struct cls_fl_head *head,
740 struct fl_flow_mask *mask)
742 head->ht_params = fl_ht_params;
743 head->ht_params.key_len = fl_mask_range(mask);
744 head->ht_params.key_offset += mask->range.start;
746 return rhashtable_init(&head->ht, &head->ht_params);
749 #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
750 #define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member))
752 #define FL_KEY_IS_MASKED(mask, member) \
753 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
754 0, FL_KEY_MEMBER_SIZE(member)) \
756 #define FL_KEY_SET(keys, cnt, id, member) \
758 keys[cnt].key_id = id; \
759 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
763 #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
765 if (FL_KEY_IS_MASKED(mask, member)) \
766 FL_KEY_SET(keys, cnt, id, member); \
769 static void fl_init_dissector(struct cls_fl_head *head,
770 struct fl_flow_mask *mask)
772 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
775 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
776 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
777 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
778 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
779 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
780 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
781 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
782 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
783 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
784 FLOW_DISSECTOR_KEY_PORTS, tp);
785 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
786 FLOW_DISSECTOR_KEY_IP, ip);
787 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
788 FLOW_DISSECTOR_KEY_TCP, tcp);
789 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
790 FLOW_DISSECTOR_KEY_ICMP, icmp);
791 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
792 FLOW_DISSECTOR_KEY_ARP, arp);
793 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
794 FLOW_DISSECTOR_KEY_MPLS, mpls);
795 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
796 FLOW_DISSECTOR_KEY_VLAN, vlan);
797 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
798 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
799 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
800 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
801 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
802 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
803 if (FL_KEY_IS_MASKED(&mask->key, enc_ipv4) ||
804 FL_KEY_IS_MASKED(&mask->key, enc_ipv6))
805 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
807 FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt,
808 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
810 skb_flow_dissector_init(&head->dissector, keys, cnt);
813 static int fl_check_assign_mask(struct cls_fl_head *head,
814 struct fl_flow_mask *mask)
818 if (head->mask_assigned) {
819 if (!fl_mask_eq(&head->mask, mask))
825 /* Mask is not assigned yet. So assign it and init hashtable
828 err = fl_init_hashtable(head, mask);
831 memcpy(&head->mask, mask, sizeof(head->mask));
832 head->mask_assigned = true;
834 fl_init_dissector(head, mask);
839 static int fl_set_parms(struct net *net, struct tcf_proto *tp,
840 struct cls_fl_filter *f, struct fl_flow_mask *mask,
841 unsigned long base, struct nlattr **tb,
842 struct nlattr *est, bool ovr)
846 err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr);
850 if (tb[TCA_FLOWER_CLASSID]) {
851 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
852 tcf_bind_filter(tp, &f->res, base);
855 err = fl_set_key(net, tb, &f->key, &mask->key);
859 fl_mask_update_range(mask);
860 fl_set_masked_key(&f->mkey, &f->key, mask);
865 static int fl_change(struct net *net, struct sk_buff *in_skb,
866 struct tcf_proto *tp, unsigned long base,
867 u32 handle, struct nlattr **tca,
868 void **arg, bool ovr)
870 struct cls_fl_head *head = rtnl_dereference(tp->root);
871 struct cls_fl_filter *fold = *arg;
872 struct cls_fl_filter *fnew;
874 struct fl_flow_mask mask = {};
875 unsigned long idr_index;
878 if (!tca[TCA_OPTIONS])
881 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
885 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
890 if (fold && handle && fold->handle != handle) {
895 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
901 err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0);
906 err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
907 1, 0x80000000, GFP_KERNEL);
910 fnew->handle = idr_index;
913 /* user specifies a handle and it doesn't exist */
914 if (handle && !fold) {
915 err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
916 handle, handle + 1, GFP_KERNEL);
919 fnew->handle = idr_index;
922 if (tb[TCA_FLOWER_FLAGS]) {
923 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
925 if (!tc_flags_valid(fnew->flags)) {
931 err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr);
935 err = fl_check_assign_mask(head, &mask);
939 if (!tc_skip_sw(fnew->flags)) {
940 if (!fold && fl_lookup(head, &fnew->mkey)) {
945 err = rhashtable_insert_fast(&head->ht, &fnew->ht_node,
951 if (!tc_skip_hw(fnew->flags)) {
952 err = fl_hw_replace_filter(tp,
960 if (!tc_in_hw(fnew->flags))
961 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
964 if (!tc_skip_sw(fold->flags))
965 rhashtable_remove_fast(&head->ht, &fold->ht_node,
967 if (!tc_skip_hw(fold->flags))
968 fl_hw_destroy_filter(tp, fold);
974 fnew->handle = handle;
975 idr_replace_ext(&head->handle_idr, fnew, fnew->handle);
976 list_replace_rcu(&fold->list, &fnew->list);
977 tcf_unbind_filter(tp, &fold->res);
978 call_rcu(&fold->rcu, fl_destroy_filter);
980 list_add_tail_rcu(&fnew->list, &head->filters);
988 idr_remove_ext(&head->handle_idr, fnew->handle);
990 tcf_exts_destroy(&fnew->exts);
997 static int fl_delete(struct tcf_proto *tp, void *arg, bool *last)
999 struct cls_fl_head *head = rtnl_dereference(tp->root);
1000 struct cls_fl_filter *f = arg;
1002 if (!tc_skip_sw(f->flags))
1003 rhashtable_remove_fast(&head->ht, &f->ht_node,
1006 *last = list_empty(&head->filters);
1010 static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg)
1012 struct cls_fl_head *head = rtnl_dereference(tp->root);
1013 struct cls_fl_filter *f;
1015 list_for_each_entry_rcu(f, &head->filters, list) {
1016 if (arg->count < arg->skip)
1018 if (arg->fn(tp, f, arg) < 0) {
1027 static int fl_dump_key_val(struct sk_buff *skb,
1028 void *val, int val_type,
1029 void *mask, int mask_type, int len)
1033 if (!memchr_inv(mask, 0, len))
1035 err = nla_put(skb, val_type, len, val);
1038 if (mask_type != TCA_FLOWER_UNSPEC) {
1039 err = nla_put(skb, mask_type, len, mask);
1046 static int fl_dump_key_mpls(struct sk_buff *skb,
1047 struct flow_dissector_key_mpls *mpls_key,
1048 struct flow_dissector_key_mpls *mpls_mask)
1052 if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask)))
1054 if (mpls_mask->mpls_ttl) {
1055 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
1056 mpls_key->mpls_ttl);
1060 if (mpls_mask->mpls_tc) {
1061 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
1066 if (mpls_mask->mpls_label) {
1067 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
1068 mpls_key->mpls_label);
1072 if (mpls_mask->mpls_bos) {
1073 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
1074 mpls_key->mpls_bos);
1081 static int fl_dump_key_ip(struct sk_buff *skb,
1082 struct flow_dissector_key_ip *key,
1083 struct flow_dissector_key_ip *mask)
1085 if (fl_dump_key_val(skb, &key->tos, TCA_FLOWER_KEY_IP_TOS, &mask->tos,
1086 TCA_FLOWER_KEY_IP_TOS_MASK, sizeof(key->tos)) ||
1087 fl_dump_key_val(skb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, &mask->ttl,
1088 TCA_FLOWER_KEY_IP_TTL_MASK, sizeof(key->ttl)))
1094 static int fl_dump_key_vlan(struct sk_buff *skb,
1095 struct flow_dissector_key_vlan *vlan_key,
1096 struct flow_dissector_key_vlan *vlan_mask)
1100 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
1102 if (vlan_mask->vlan_id) {
1103 err = nla_put_u16(skb, TCA_FLOWER_KEY_VLAN_ID,
1108 if (vlan_mask->vlan_priority) {
1109 err = nla_put_u8(skb, TCA_FLOWER_KEY_VLAN_PRIO,
1110 vlan_key->vlan_priority);
1117 static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
1118 u32 *flower_key, u32 *flower_mask,
1119 u32 flower_flag_bit, u32 dissector_flag_bit)
1121 if (dissector_mask & dissector_flag_bit) {
1122 *flower_mask |= flower_flag_bit;
1123 if (dissector_key & dissector_flag_bit)
1124 *flower_key |= flower_flag_bit;
1128 static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
1134 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
1140 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
1141 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
1143 _key = cpu_to_be32(key);
1144 _mask = cpu_to_be32(mask);
1146 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
1150 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
1153 static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
1154 struct sk_buff *skb, struct tcmsg *t)
1156 struct cls_fl_head *head = rtnl_dereference(tp->root);
1157 struct cls_fl_filter *f = fh;
1158 struct nlattr *nest;
1159 struct fl_flow_key *key, *mask;
1164 t->tcm_handle = f->handle;
1166 nest = nla_nest_start(skb, TCA_OPTIONS);
1168 goto nla_put_failure;
1170 if (f->res.classid &&
1171 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
1172 goto nla_put_failure;
1175 mask = &head->mask.key;
1177 if (mask->indev_ifindex) {
1178 struct net_device *dev;
1180 dev = __dev_get_by_index(net, key->indev_ifindex);
1181 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
1182 goto nla_put_failure;
1185 if (!tc_skip_hw(f->flags))
1186 fl_hw_update_stats(tp, f);
1188 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1189 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1190 sizeof(key->eth.dst)) ||
1191 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1192 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1193 sizeof(key->eth.src)) ||
1194 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
1195 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
1196 sizeof(key->basic.n_proto)))
1197 goto nla_put_failure;
1199 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
1200 goto nla_put_failure;
1202 if (fl_dump_key_vlan(skb, &key->vlan, &mask->vlan))
1203 goto nla_put_failure;
1205 if ((key->basic.n_proto == htons(ETH_P_IP) ||
1206 key->basic.n_proto == htons(ETH_P_IPV6)) &&
1207 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
1208 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
1209 sizeof(key->basic.ip_proto)) ||
1210 fl_dump_key_ip(skb, &key->ip, &mask->ip)))
1211 goto nla_put_failure;
1213 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
1214 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1215 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1216 sizeof(key->ipv4.src)) ||
1217 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1218 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1219 sizeof(key->ipv4.dst))))
1220 goto nla_put_failure;
1221 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
1222 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1223 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1224 sizeof(key->ipv6.src)) ||
1225 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1226 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1227 sizeof(key->ipv6.dst))))
1228 goto nla_put_failure;
1230 if (key->basic.ip_proto == IPPROTO_TCP &&
1231 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
1232 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
1233 sizeof(key->tp.src)) ||
1234 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
1235 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
1236 sizeof(key->tp.dst)) ||
1237 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1238 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1239 sizeof(key->tcp.flags))))
1240 goto nla_put_failure;
1241 else if (key->basic.ip_proto == IPPROTO_UDP &&
1242 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
1243 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
1244 sizeof(key->tp.src)) ||
1245 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
1246 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
1247 sizeof(key->tp.dst))))
1248 goto nla_put_failure;
1249 else if (key->basic.ip_proto == IPPROTO_SCTP &&
1250 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1251 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1252 sizeof(key->tp.src)) ||
1253 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1254 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
1255 sizeof(key->tp.dst))))
1256 goto nla_put_failure;
1257 else if (key->basic.n_proto == htons(ETH_P_IP) &&
1258 key->basic.ip_proto == IPPROTO_ICMP &&
1259 (fl_dump_key_val(skb, &key->icmp.type,
1260 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
1261 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1262 sizeof(key->icmp.type)) ||
1263 fl_dump_key_val(skb, &key->icmp.code,
1264 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
1265 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1266 sizeof(key->icmp.code))))
1267 goto nla_put_failure;
1268 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1269 key->basic.ip_proto == IPPROTO_ICMPV6 &&
1270 (fl_dump_key_val(skb, &key->icmp.type,
1271 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
1272 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1273 sizeof(key->icmp.type)) ||
1274 fl_dump_key_val(skb, &key->icmp.code,
1275 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
1276 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
1277 sizeof(key->icmp.code))))
1278 goto nla_put_failure;
1279 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
1280 key->basic.n_proto == htons(ETH_P_RARP)) &&
1281 (fl_dump_key_val(skb, &key->arp.sip,
1282 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
1283 TCA_FLOWER_KEY_ARP_SIP_MASK,
1284 sizeof(key->arp.sip)) ||
1285 fl_dump_key_val(skb, &key->arp.tip,
1286 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
1287 TCA_FLOWER_KEY_ARP_TIP_MASK,
1288 sizeof(key->arp.tip)) ||
1289 fl_dump_key_val(skb, &key->arp.op,
1290 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
1291 TCA_FLOWER_KEY_ARP_OP_MASK,
1292 sizeof(key->arp.op)) ||
1293 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1294 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1295 sizeof(key->arp.sha)) ||
1296 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1297 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1298 sizeof(key->arp.tha))))
1299 goto nla_put_failure;
1301 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
1302 (fl_dump_key_val(skb, &key->enc_ipv4.src,
1303 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
1304 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1305 sizeof(key->enc_ipv4.src)) ||
1306 fl_dump_key_val(skb, &key->enc_ipv4.dst,
1307 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
1308 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1309 sizeof(key->enc_ipv4.dst))))
1310 goto nla_put_failure;
1311 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
1312 (fl_dump_key_val(skb, &key->enc_ipv6.src,
1313 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
1314 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1315 sizeof(key->enc_ipv6.src)) ||
1316 fl_dump_key_val(skb, &key->enc_ipv6.dst,
1317 TCA_FLOWER_KEY_ENC_IPV6_DST,
1318 &mask->enc_ipv6.dst,
1319 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1320 sizeof(key->enc_ipv6.dst))))
1321 goto nla_put_failure;
1323 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
1324 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
1325 sizeof(key->enc_key_id)) ||
1326 fl_dump_key_val(skb, &key->enc_tp.src,
1327 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1329 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1330 sizeof(key->enc_tp.src)) ||
1331 fl_dump_key_val(skb, &key->enc_tp.dst,
1332 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1334 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1335 sizeof(key->enc_tp.dst)))
1336 goto nla_put_failure;
1338 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
1339 goto nla_put_failure;
1341 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
1342 goto nla_put_failure;
1344 if (tcf_exts_dump(skb, &f->exts))
1345 goto nla_put_failure;
1347 nla_nest_end(skb, nest);
1349 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
1350 goto nla_put_failure;
1355 nla_nest_cancel(skb, nest);
1359 static void fl_bind_class(void *fh, u32 classid, unsigned long cl)
1361 struct cls_fl_filter *f = fh;
1363 if (f && f->res.classid == classid)
1367 static struct tcf_proto_ops cls_fl_ops __read_mostly = {
1369 .classify = fl_classify,
1371 .destroy = fl_destroy,
1373 .change = fl_change,
1374 .delete = fl_delete,
1377 .bind_class = fl_bind_class,
1378 .owner = THIS_MODULE,
1381 static int __init cls_fl_init(void)
1383 return register_tcf_proto_ops(&cls_fl_ops);
1386 static void __exit cls_fl_exit(void)
1388 unregister_tcf_proto_ops(&cls_fl_ops);
1391 module_init(cls_fl_init);
1392 module_exit(cls_fl_exit);
1394 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
1395 MODULE_DESCRIPTION("Flower classifier");
1396 MODULE_LICENSE("GPL v2");