freebsd-dev/sys/netinet/sctp_output.h
Randall Stewart bff64a4db3 - fixed several places where we did not release INP locks.
- fixed a refcount bug in the new ifa structures.
- use vrf's from default stcb or inp whenever possible.
- Address limits raised to account for a full IP fragmented
  packet (1000 addresses).
- flight size correcting updated to include one message only
  and to handle case where the peer does not cumack the
  next segment aka lists 1/1 in sack blocks..
- Various bad init/init-ack handling could cause a panic
  since we tried to unlock the destroyed mutex. Fixes
  so we properly exit when we need to destroy an assoc.
  (Found by Cisco DevTest team :D)
- name rename in src-addr-selection from pass to sifa.
- route structure typedef'd to allow different platforms
  and updated into sctp_os_bsd file.
- Max retransmissions a chunk can be made added.
Reviewed by:	gnn
2007-04-03 11:15:32 +00:00

200 lines
5.7 KiB
C

/*-
* Copyright (c) 2001-2007, Cisco Systems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/* $KAME: sctp_output.h,v 1.14 2005/03/06 16:04:18 itojun Exp $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef __sctp_output_h__
#define __sctp_output_h__
#include <netinet/sctp_header.h>
#if defined(_KERNEL)
struct mbuf *
sctp_get_mbuf_for_msg(unsigned int space_needed,
int want_header, int how, int allonebuf, int type);
struct mbuf *
sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp,
struct sctp_scoping *scope,
struct mbuf *m_at,
int cnt_inits_to);
int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
int
sctp_is_address_in_scope(struct sctp_ifa *ifa,
int ipv4_addr_legal,
int ipv6_addr_legal,
int loopback_scope,
int ipv4_local_scope,
int local_scope,
int site_scope,
int do_update);
int
sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa);
struct sctp_ifa *
sctp_source_address_selection(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
sctp_route_t * ro, struct sctp_nets *net,
int non_asoc_addr_ok, uint32_t vrf_id);
void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *);
void
sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
struct mbuf *, int, int, struct sctphdr *, struct sctp_init_chunk *);
struct mbuf *
sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
struct sctp_chunkhdr *);
void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
int
sctp_send_cookie_echo(struct mbuf *, int, struct sctp_tcb *,
struct sctp_nets *);
int sctp_send_cookie_ack(struct sctp_tcb *);
void
sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
struct sctp_nets *);
int sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
int sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
int sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *);
int sctp_send_shutdown_complete2(struct mbuf *, int, struct sctphdr *);
int sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *);
int sctp_send_asconf_ack(struct sctp_tcb *, uint32_t);
int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *);
void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *);
void sctp_toss_old_asconf(struct sctp_tcb *);
void sctp_fix_ecn_echo(struct sctp_association *);
int
sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
struct mbuf *, struct thread *, int);
void
sctp_insert_on_wheel(struct sctp_tcb *stcb,
struct sctp_association *asoc,
struct sctp_stream_out *strq, int holdslock);
int sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int);
void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *);
void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
void sctp_send_sack(struct sctp_tcb *);
int sctp_send_hb(struct sctp_tcb *, int, struct sctp_nets *);
void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
void
sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
int, int);
void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t);
void
sctp_add_stream_reset_out(struct sctp_tmit_chunk *chk,
int number_entries, uint16_t * list,
uint32_t seq, uint32_t resp_seq, uint32_t last_sent);
void
sctp_add_stream_reset_in(struct sctp_tmit_chunk *chk,
int number_entries, uint16_t * list,
uint32_t seq);
void
sctp_add_stream_reset_tsn(struct sctp_tmit_chunk *chk,
uint32_t seq);
void
sctp_add_stream_reset_result(struct sctp_tmit_chunk *chk,
uint32_t resp_seq, uint32_t result);
void
sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *chk,
uint32_t resp_seq, uint32_t result,
uint32_t send_una, uint32_t recv_next);
int
sctp_send_str_reset_req(struct sctp_tcb *stcb,
int number_entries, uint16_t * list,
uint8_t send_out_req, uint32_t resp_seq,
uint8_t send_in_req,
uint8_t send_tsn_req);
void
sctp_send_abort(struct mbuf *, int, struct sctphdr *, uint32_t,
struct mbuf *);
void sctp_send_operr_to(struct mbuf *, int, struct mbuf *, uint32_t);
int
sctp_sosend(struct socket *so,
struct sockaddr *addr,
struct uio *uio,
struct mbuf *top,
struct mbuf *control,
int flags,
struct thread *p
);
#endif
#endif