ematch.c (5a84d159061d914c8dd4aa372ac6e9529c2be453) ematch.c (27a884dc3cb63b93c2b3b643f5b31eed5f8a4d26)
1/*
2 * net/sched/ematch.c Extended Match API
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

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413 * This function dumps a ematch tree into a rtnl message. It is valid to
414 * call this function while the ematch tree is in use.
415 *
416 * Returns -1 if the skb tailroom is insufficient.
417 */
418int tcf_em_tree_dump(struct sk_buff *skb, struct tcf_ematch_tree *tree, int tlv)
419{
420 int i;
1/*
2 * net/sched/ematch.c Extended Match API
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

--- 404 unchanged lines hidden (view full) ---

413 * This function dumps a ematch tree into a rtnl message. It is valid to
414 * call this function while the ematch tree is in use.
415 *
416 * Returns -1 if the skb tailroom is insufficient.
417 */
418int tcf_em_tree_dump(struct sk_buff *skb, struct tcf_ematch_tree *tree, int tlv)
419{
420 int i;
421 struct rtattr * top_start = (struct rtattr*) skb->tail;
422 struct rtattr * list_start;
421 u8 *tail;
422 struct rtattr *top_start = (struct rtattr *)skb_tail_pointer(skb);
423 struct rtattr *list_start;
423
424 RTA_PUT(skb, tlv, 0, NULL);
425 RTA_PUT(skb, TCA_EMATCH_TREE_HDR, sizeof(tree->hdr), &tree->hdr);
426
424
425 RTA_PUT(skb, tlv, 0, NULL);
426 RTA_PUT(skb, TCA_EMATCH_TREE_HDR, sizeof(tree->hdr), &tree->hdr);
427
427 list_start = (struct rtattr *) skb->tail;
428 list_start = (struct rtattr *)skb_tail_pointer(skb);
428 RTA_PUT(skb, TCA_EMATCH_TREE_LIST, 0, NULL);
429
429 RTA_PUT(skb, TCA_EMATCH_TREE_LIST, 0, NULL);
430
431 tail = skb_tail_pointer(skb);
430 for (i = 0; i < tree->hdr.nmatches; i++) {
432 for (i = 0; i < tree->hdr.nmatches; i++) {
431 struct rtattr *match_start = (struct rtattr*) skb->tail;
433 struct rtattr *match_start = (struct rtattr *)tail;
432 struct tcf_ematch *em = tcf_em_get_match(tree, i);
433 struct tcf_ematch_hdr em_hdr = {
434 .kind = em->ops ? em->ops->kind : TCF_EM_CONTAINER,
435 .matchid = em->matchid,
436 .flags = em->flags
437 };
438
439 RTA_PUT(skb, i+1, sizeof(em_hdr), &em_hdr);
440
441 if (em->ops && em->ops->dump) {
442 if (em->ops->dump(skb, em) < 0)
443 goto rtattr_failure;
444 } else if (tcf_em_is_container(em) || tcf_em_is_simple(em)) {
445 u32 u = em->data;
446 RTA_PUT_NOHDR(skb, sizeof(u), &u);
447 } else if (em->datalen > 0)
448 RTA_PUT_NOHDR(skb, em->datalen, (void *) em->data);
449
434 struct tcf_ematch *em = tcf_em_get_match(tree, i);
435 struct tcf_ematch_hdr em_hdr = {
436 .kind = em->ops ? em->ops->kind : TCF_EM_CONTAINER,
437 .matchid = em->matchid,
438 .flags = em->flags
439 };
440
441 RTA_PUT(skb, i+1, sizeof(em_hdr), &em_hdr);
442
443 if (em->ops && em->ops->dump) {
444 if (em->ops->dump(skb, em) < 0)
445 goto rtattr_failure;
446 } else if (tcf_em_is_container(em) || tcf_em_is_simple(em)) {
447 u32 u = em->data;
448 RTA_PUT_NOHDR(skb, sizeof(u), &u);
449 } else if (em->datalen > 0)
450 RTA_PUT_NOHDR(skb, em->datalen, (void *) em->data);
451
450 match_start->rta_len = skb->tail - (u8*) match_start;
452 tail = skb_tail_pointer(skb);
453 match_start->rta_len = tail - (u8 *)match_start;
451 }
452
454 }
455
453 list_start->rta_len = skb->tail - (u8 *) list_start;
454 top_start->rta_len = skb->tail - (u8 *) top_start;
456 list_start->rta_len = tail - (u8 *)list_start;
457 top_start->rta_len = tail - (u8 *)top_start;
455
456 return 0;
457
458rtattr_failure:
459 return -1;
460}
461
462static inline int tcf_em_match(struct sk_buff *skb, struct tcf_ematch *em,

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459 return 0;
460
461rtattr_failure:
462 return -1;
463}
464
465static inline int tcf_em_match(struct sk_buff *skb, struct tcf_ematch *em,

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