2afb3e849f
the last message on the send stream was "null" but still
there, a state we allow, we could get hung and not clean
it up and wait for the shutdown guard timer to clear the
association without a graceful close. Fix this so that
that we properly clean up.
- Added support for Multiple ASCONF per new RFC. We only
(so far) accept input of these and cannot yet generate
a multi-asconf.
- Sysctl'd support for experimental Fast Handover feature. Always
disabled unless sysctl or socket option changes to enable.
- Error case in add-ip where the peer supports AUTH and ADD-IP
but does NOT require AUTH of ASCONF/ASCONF-ACK. We need to
ABORT in this case.
- According to the Kyoto summit of socket api developers
(Solaris, Linux, BSD). We need to have:
o non-eeor mode messages be atomic - Fixed
o Allow implicit setup of an assoc in 1-2-1 model if
using the sctp_**() send calls - Fixed
o Get rid of HAVE_XXX declarations - Done
o add a sctp_pr_policy in hole in sndrcvinfo structure - Done
o add a PR_SCTP_POLICY_VALID type flag - yet to-do in a future patch!
- Optimize sctp6 calls to reuse code in sctp_usrreq. Also optimize
when we close sending out the data and disabling Nagle.
- Change key concatenation order to match the auth RFC
- When sending OOTB shutdown_complete always do csum.
- Don't send PKT-DROP to a PKT-DROP
- For abort chunks just always checksums same for
shutdown-complete.
- inpcb_free front state had a bug where in queue
data could wedge an assoc. We need to just abandon
ones in front states (free_assoc).
- If a peer sends us a 64k abort, we would try to
assemble a response packet which may be larger than
64k. This then would be dropped by IP. Instead make
a "minimum" size for us 64k-2k (we want at least
2k for our initack). If we receive such an init
discard it early without all the processing.
- When we peel off we must increment the tcb ref count
to keep it from being freed from underneath us.
- handling fwd-tsn had bugs that caused memory overwrites
when given faulty data, fixed so can't happen and we
also stop at the first bad stream no.
- Fixed so comm-up generates the adaption indication.
- peeloff did not get the hmac params copied.
- fix it so we lock the addr list when doing src-addr selection
(in future we need to use a multi-reader/one writer lock here)
- During lowlevel output, we could end up with a _l_addr set
to null if the iterator is calling the output routine. This
means we would possibly crash when we gather the MTU info.
Fix so we only do the gather where we have a src address
cached.
- we need to be sure to set abort flag on conn state when
we receive an abort.
- peeloff could leak a socket. Moved code so the close will
find the socket if the peeloff fails (uipc_syscalls.c)
Approved by: re@freebsd.org(Ken Smith)
201 lines
5.8 KiB
C
201 lines
5.8 KiB
C
/*-
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* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* a) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* b) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* c) Neither the name of Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* $KAME: sctp_output.h,v 1.14 2005/03/06 16:04:18 itojun Exp $ */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef __sctp_output_h__
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#define __sctp_output_h__
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#include <netinet/sctp_header.h>
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#if defined(_KERNEL)
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struct mbuf *
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sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp,
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struct sctp_scoping *scope,
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struct mbuf *m_at,
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int cnt_inits_to);
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int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
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int
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sctp_is_address_in_scope(struct sctp_ifa *ifa,
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int ipv4_addr_legal,
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int ipv6_addr_legal,
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int loopback_scope,
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int ipv4_local_scope,
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int local_scope,
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int site_scope,
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int do_update);
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int
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sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa);
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struct sctp_ifa *
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sctp_source_address_selection(struct sctp_inpcb *inp,
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struct sctp_tcb *stcb,
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sctp_route_t * ro, struct sctp_nets *net,
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int non_asoc_addr_ok, uint32_t vrf_id);
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int
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sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t * ro);
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int
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sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t * ro);
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void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *);
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void
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sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
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struct mbuf *, int, int, struct sctphdr *, struct sctp_init_chunk *,
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uint32_t);
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struct mbuf *
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sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
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struct sctp_chunkhdr *);
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void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
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int
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sctp_send_cookie_echo(struct mbuf *, int, struct sctp_tcb *,
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struct sctp_nets *);
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void sctp_send_cookie_ack(struct sctp_tcb *);
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void
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sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
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struct sctp_nets *);
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void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
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void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
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void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *);
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void
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sctp_send_shutdown_complete2(struct mbuf *, int, struct sctphdr *,
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uint32_t);
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void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *);
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void sctp_send_asconf_ack(struct sctp_tcb *);
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int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *);
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void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *);
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void sctp_toss_old_asconf(struct sctp_tcb *);
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void sctp_fix_ecn_echo(struct sctp_association *);
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int
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sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
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struct mbuf *, struct thread *, int);
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void
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sctp_insert_on_wheel(struct sctp_tcb *stcb,
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struct sctp_association *asoc,
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struct sctp_stream_out *strq, int holdslock);
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void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int);
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void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *);
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void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
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void sctp_send_sack(struct sctp_tcb *);
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int sctp_send_hb(struct sctp_tcb *, int, struct sctp_nets *);
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void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
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void
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sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
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int, int);
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void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t);
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void
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sctp_add_stream_reset_out(struct sctp_tmit_chunk *chk,
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int number_entries, uint16_t * list,
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uint32_t seq, uint32_t resp_seq, uint32_t last_sent);
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void
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sctp_add_stream_reset_in(struct sctp_tmit_chunk *chk,
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int number_entries, uint16_t * list,
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uint32_t seq);
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void
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sctp_add_stream_reset_tsn(struct sctp_tmit_chunk *chk,
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uint32_t seq);
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void
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sctp_add_stream_reset_result(struct sctp_tmit_chunk *chk,
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uint32_t resp_seq, uint32_t result);
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void
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sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *chk,
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uint32_t resp_seq, uint32_t result,
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uint32_t send_una, uint32_t recv_next);
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int
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sctp_send_str_reset_req(struct sctp_tcb *stcb,
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int number_entries, uint16_t * list,
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uint8_t send_out_req, uint32_t resp_seq,
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uint8_t send_in_req,
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uint8_t send_tsn_req);
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void
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sctp_send_abort(struct mbuf *, int, struct sctphdr *, uint32_t,
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struct mbuf *, uint32_t);
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void sctp_send_operr_to(struct mbuf *, int, struct mbuf *, uint32_t, uint32_t);
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int
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sctp_sosend(struct socket *so,
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struct sockaddr *addr,
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struct uio *uio,
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struct mbuf *top,
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struct mbuf *control,
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int flags,
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struct thread *p
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);
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#endif
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#endif
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