ipv4.c (967535223f9a8d95c187a8728480b569164cd4f4) ipv4.c (c92e8c02fe664155ac4234516e32544bec0f113d)
1/*
2 * net/dccp/ipv4.c
3 *
4 * An implementation of the DCCP protocol
5 * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License

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

409 if (newsk == NULL)
410 goto exit_nonewsk;
411
412 newinet = inet_sk(newsk);
413 ireq = inet_rsk(req);
414 sk_daddr_set(newsk, ireq->ir_rmt_addr);
415 sk_rcv_saddr_set(newsk, ireq->ir_loc_addr);
416 newinet->inet_saddr = ireq->ir_loc_addr;
1/*
2 * net/dccp/ipv4.c
3 *
4 * An implementation of the DCCP protocol
5 * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License

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

409 if (newsk == NULL)
410 goto exit_nonewsk;
411
412 newinet = inet_sk(newsk);
413 ireq = inet_rsk(req);
414 sk_daddr_set(newsk, ireq->ir_rmt_addr);
415 sk_rcv_saddr_set(newsk, ireq->ir_loc_addr);
416 newinet->inet_saddr = ireq->ir_loc_addr;
417 newinet->inet_opt = ireq->opt;
418 ireq->opt = NULL;
417 RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
419 newinet->mc_index = inet_iif(skb);
420 newinet->mc_ttl = ip_hdr(skb)->ttl;
421 newinet->inet_id = jiffies;
422
423 if (dst == NULL && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
424 goto put_and_exit;
425
426 sk_setup_caps(newsk, dst);
427
428 dccp_sync_mss(newsk, dst_mtu(dst));
429
430 if (__inet_inherit_port(sk, newsk) < 0)
431 goto put_and_exit;
432 *own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
418 newinet->mc_index = inet_iif(skb);
419 newinet->mc_ttl = ip_hdr(skb)->ttl;
420 newinet->inet_id = jiffies;
421
422 if (dst == NULL && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
423 goto put_and_exit;
424
425 sk_setup_caps(newsk, dst);
426
427 dccp_sync_mss(newsk, dst_mtu(dst));
428
429 if (__inet_inherit_port(sk, newsk) < 0)
430 goto put_and_exit;
431 *own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
433
432 if (*own_req)
433 ireq->ireq_opt = NULL;
434 else
435 newinet->inet_opt = NULL;
434 return newsk;
435
436exit_overflow:
437 __NET_INC_STATS(sock_net(sk), LINUX_MIB_LISTENOVERFLOWS);
438exit_nonewsk:
439 dst_release(dst);
440exit:
441 __NET_INC_STATS(sock_net(sk), LINUX_MIB_LISTENDROPS);
442 return NULL;
443put_and_exit:
436 return newsk;
437
438exit_overflow:
439 __NET_INC_STATS(sock_net(sk), LINUX_MIB_LISTENOVERFLOWS);
440exit_nonewsk:
441 dst_release(dst);
442exit:
443 __NET_INC_STATS(sock_net(sk), LINUX_MIB_LISTENDROPS);
444 return NULL;
445put_and_exit:
446 newinet->inet_opt = NULL;
444 inet_csk_prepare_forced_close(newsk);
445 dccp_done(newsk);
446 goto exit;
447}
448EXPORT_SYMBOL_GPL(dccp_v4_request_recv_sock);
449
450static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk,
451 struct sk_buff *skb)

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487 if (skb != NULL) {
488 const struct inet_request_sock *ireq = inet_rsk(req);
489 struct dccp_hdr *dh = dccp_hdr(skb);
490
491 dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr,
492 ireq->ir_rmt_addr);
493 err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
494 ireq->ir_rmt_addr,
447 inet_csk_prepare_forced_close(newsk);
448 dccp_done(newsk);
449 goto exit;
450}
451EXPORT_SYMBOL_GPL(dccp_v4_request_recv_sock);
452
453static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk,
454 struct sk_buff *skb)

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490 if (skb != NULL) {
491 const struct inet_request_sock *ireq = inet_rsk(req);
492 struct dccp_hdr *dh = dccp_hdr(skb);
493
494 dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr,
495 ireq->ir_rmt_addr);
496 err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
497 ireq->ir_rmt_addr,
495 ireq->opt);
498 rcu_dereference(ireq->ireq_opt));
496 err = net_xmit_eval(err);
497 }
498
499out:
500 dst_release(dst);
501 return err;
502}
503

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543 local_bh_enable();
544out:
545 dst_release(dst);
546}
547
548static void dccp_v4_reqsk_destructor(struct request_sock *req)
549{
550 dccp_feat_list_purge(&dccp_rsk(req)->dreq_featneg);
499 err = net_xmit_eval(err);
500 }
501
502out:
503 dst_release(dst);
504 return err;
505}
506

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546 local_bh_enable();
547out:
548 dst_release(dst);
549}
550
551static void dccp_v4_reqsk_destructor(struct request_sock *req)
552{
553 dccp_feat_list_purge(&dccp_rsk(req)->dreq_featneg);
551 kfree(inet_rsk(req)->opt);
554 kfree(rcu_dereference_protected(inet_rsk(req)->ireq_opt, 1));
552}
553
554void dccp_syn_ack_timeout(const struct request_sock *req)
555{
556}
557EXPORT_SYMBOL(dccp_syn_ack_timeout);
558
559static struct request_sock_ops dccp_request_sock_ops __read_mostly = {

--- 521 unchanged lines hidden --- 		555}
556
557void dccp_syn_ack_timeout(const struct request_sock *req)
558{
559}
560EXPORT_SYMBOL(dccp_syn_ack_timeout);
561
562static struct request_sock_ops dccp_request_sock_ops __read_mostly = {

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