42551e993f
- moved away from ifn/ifa access to sctp_ifa/sctp_ifn built and managed by the add-ip code. - cleaned up add-ip code to use the iterator - made iterator be a thread, which enables auto-asconf now. - rewrote and cleaned up source address selection (also made it use new structures). - Fixed a couple of memory leaks. - DACK now settable as to how many packets to delay as well as time. - connectx() to latest socket API, new associd arg. - Fixed issue with revoking and loosing potential to send when we inflate the flight size. We now inflate the cwnd too and deflate it later when the revoked chunk is sent or acked. - Got rid of some temp debug code - src addr selection moved to a common file (sctp_output.c) - Support for simple VRF's (we have support for multi-vfr via compile switch that is scrubbed from BSD but we won't need multi-vrf until we first get VRF :-D) - Rest of mib work for address information now done - Limit number of addresses in INIT/INIT-ACK to a #def (30). Reviewed by: gnn
387 lines
13 KiB
C
387 lines
13 KiB
C
/*-
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* Copyright (c) 2001-2006, 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.h,v 1.18 2005/03/06 16:04:16 itojun Exp $ */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef _NETINET_SCTP_H_
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#define _NETINET_SCTP_H_
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#include <sys/types.h>
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/*
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* SCTP protocol - RFC2960.
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*/
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struct sctphdr {
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uint16_t src_port; /* source port */
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uint16_t dest_port; /* destination port */
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uint32_t v_tag; /* verification tag of packet */
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uint32_t checksum; /* Adler32 C-Sum */
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/* chunks follow... */
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};
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/*
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* SCTP Chunks
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*/
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struct sctp_chunkhdr {
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uint8_t chunk_type; /* chunk type */
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uint8_t chunk_flags; /* chunk flags */
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uint16_t chunk_length; /* chunk length */
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/* optional params follow */
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};
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/*
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* SCTP chunk parameters
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*/
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struct sctp_paramhdr {
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uint16_t param_type; /* parameter type */
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uint16_t param_length; /* parameter length */
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};
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/*
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* user socket options: socket API defined
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*/
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/*
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* read-write options
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*/
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#define SCTP_RTOINFO 0x00000001
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#define SCTP_ASSOCINFO 0x00000002
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#define SCTP_INITMSG 0x00000003
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#define SCTP_NODELAY 0x00000004
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#define SCTP_AUTOCLOSE 0x00000005
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#define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006
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#define SCTP_PRIMARY_ADDR 0x00000007
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#define SCTP_ADAPTATION_LAYER 0x00000008
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/* same as above */
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#define SCTP_ADAPTION_LAYER 0x00000008
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#define SCTP_DISABLE_FRAGMENTS 0x00000009
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#define SCTP_PEER_ADDR_PARAMS 0x0000000a
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#define SCTP_DEFAULT_SEND_PARAM 0x0000000b
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/* ancillary data/notification interest options */
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#define SCTP_EVENTS 0x0000000c
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/* Without this applied we will give V4 and V6 addresses on a V6 socket */
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#define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d
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#define SCTP_MAXSEG 0x0000000e
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#define SCTP_DELAYED_ACK_TIME 0x0000000f
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#define SCTP_FRAGMENT_INTERLEAVE 0x00000010
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#define SCTP_PARTIAL_DELIVERY_POINT 0x00000011
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/* authentication support */
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#define SCTP_AUTH_CHUNK 0x00000012
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#define SCTP_AUTH_KEY 0x00000013
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#define SCTP_HMAC_IDENT 0x00000014
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#define SCTP_AUTH_ACTIVE_KEY 0x00000015
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#define SCTP_AUTH_DELETE_KEY 0x00000016
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#define SCTP_USE_EXT_RCVINFO 0x00000017
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#define SCTP_AUTO_ASCONF 0x00000018 /* rw */
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#define SCTP_MAXBURST 0x00000019 /* rw */
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/* assoc level context */
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#define SCTP_CONTEXT 0x0000001a /* rw */
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/* explict EOR signalling */
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#define SCTP_EXPLICIT_EOR 0x0000001b
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/*
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* read-only options
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*/
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#define SCTP_STATUS 0x00000100
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#define SCTP_GET_PEER_ADDR_INFO 0x00000101
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/* authentication support */
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#define SCTP_PEER_AUTH_CHUNKS 0x00000102
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#define SCTP_LOCAL_AUTH_CHUNKS 0x00000103
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/*
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* user socket options: BSD implementation specific
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*/
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/*
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* Blocking I/O is enabled on any TCP type socket by default. For the UDP
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* model if this is turned on then the socket buffer is shared for send
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* resources amongst all associations. The default for the UDP model is that
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* is SS_NBIO is set. Which means all associations have a seperate send
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* limit BUT they will NOT ever BLOCK instead you will get an error back
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* EAGAIN if you try to send to much. If you want the blocking symantics you
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* set this option at the cost of sharing one socket send buffer size amongst
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* all associations. Peeled off sockets turn this option off and block. But
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* since both TCP and peeled off sockets have only one assoc per socket this
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* is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
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* model OR peeled off UDP model, but we do allow you to do so. You just use
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* the normal syscall to toggle SS_NBIO the way you want.
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*
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* Blocking I/O is controled by the SS_NBIO flag on the socket state so_state
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* field.
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*/
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/* these should probably go into sockets API */
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#define SCTP_RESET_STREAMS 0x00001004 /* wo */
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/* here on down are more implementation specific */
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#define SCTP_SET_DEBUG_LEVEL 0x00001005
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#define SCTP_CLR_STAT_LOG 0x00001007
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/* CMT ON/OFF socket option */
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#define SCTP_CMT_ON_OFF 0x00001200
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#define SCTP_CMT_USE_DAC 0x00001201
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/* read only */
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#define SCTP_GET_SNDBUF_USE 0x00001101
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#define SCTP_GET_STAT_LOG 0x00001103
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#define SCTP_GET_ASOC_ID_LIST 0x00001104 /* ro */
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#define SCTP_PCB_STATUS 0x00001105
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#define SCTP_GET_NONCE_VALUES 0x00001106
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/* Special hook for dynamically setting primary for all assoc's,
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* this is a write only option that requires root privledge.
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*/
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#define SCTP_SET_DYNAMIC_PRIMARY 0x00002001
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/* VRF (virtual router feature) and multi-VRF support
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* options. VRF's provide splits within a router
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* that give the views of multiple routers. A
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* standard host, without VRF support, is just
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* a single VRF. If VRF's are supported then
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* the transport must be VRF aware. This means
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* that every socket call coming in must be directed
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* within the endpoint to one of the VRF's it belongs
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* to. The endpoint, before binding, may select
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* the "default" VRF it is in by using a set socket
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* option with SCTP_VRF_ID. This will also
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* get propegated to the default VRF. Once the
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* endpoint binds an address then it CANNOT add
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* additional VRF's to become a Multi-VRF endpoint.
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*
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* Before BINDING additional VRF's can be added with
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* the SCTP_ADD_VRF_ID call or deleted with
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* SCTP_DEL_VRF_ID.
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*
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* Associations are ALWAYS contained inside a single
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* VRF. They cannot reside in two (or more) VRF's. Incoming
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* packets, assuming the router is VRF aware, can always
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* tell us what VRF they arrived on. A host not supporting
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* any VRF's will find that the packets always arrived on the
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* single VRF that the host has.
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*
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*/
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#define SCTP_VRF_ID 0x00003001
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#define SCTP_ADD_VRF_ID 0x00003002
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#define SCTP_GET_VRF_IDS 0x00003003
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#define SCTP_GET_ASOC_VRF 0x00003004
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#define SCTP_DEL_VRF_ID 0x00003005
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/*
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* hidden implementation specific options these are NOT user visible (should
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* move out of sctp.h)
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*/
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/* sctp_bindx() flags as hidden socket options */
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#define SCTP_BINDX_ADD_ADDR 0x00008001
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#define SCTP_BINDX_REM_ADDR 0x00008002
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/* Hidden socket option that gets the addresses */
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#define SCTP_GET_PEER_ADDRESSES 0x00008003
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#define SCTP_GET_LOCAL_ADDRESSES 0x00008004
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/* return the total count in bytes needed to hold all local addresses bound */
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#define SCTP_GET_LOCAL_ADDR_SIZE 0x00008005
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/* Return the total count in bytes needed to hold the remote address */
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#define SCTP_GET_REMOTE_ADDR_SIZE 0x00008006
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/* hidden option for connectx */
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#define SCTP_CONNECT_X 0x00008007
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/* hidden option for connectx_delayed, part of sendx */
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#define SCTP_CONNECT_X_DELAYED 0x00008008
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#define SCTP_CONNECT_X_COMPLETE 0x00008009
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/* hidden socket option based sctp_peeloff */
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#define SCTP_PEELOFF 0x0000800a
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/* the real worker for sctp_getaddrlen() */
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#define SCTP_GET_ADDR_LEN 0x0000800b
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/* temporary workaround for Apple listen() issue, no args used */
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#define SCTP_LISTEN_FIX 0x0000800c
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/* Debug things that need to be purged */
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#define SCTP_SET_INITIAL_DBG_SEQ 0x00009f00
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/*
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* user state values
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*/
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#define SCTP_CLOSED 0x0000
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#define SCTP_BOUND 0x1000
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#define SCTP_LISTEN 0x2000
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#define SCTP_COOKIE_WAIT 0x0002
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#define SCTP_COOKIE_ECHOED 0x0004
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#define SCTP_ESTABLISHED 0x0008
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#define SCTP_SHUTDOWN_SENT 0x0010
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#define SCTP_SHUTDOWN_RECEIVED 0x0020
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#define SCTP_SHUTDOWN_ACK_SENT 0x0040
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#define SCTP_SHUTDOWN_PENDING 0x0080
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/*
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* SCTP operational error codes (user visible)
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*/
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#define SCTP_CAUSE_NO_ERROR 0x0000
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#define SCTP_CAUSE_INVALID_STREAM 0x0001
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#define SCTP_CAUSE_MISSING_PARAM 0x0002
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#define SCTP_CAUSE_STALE_COOKIE 0x0003
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#define SCTP_CAUSE_OUT_OF_RESC 0x0004
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#define SCTP_CAUSE_UNRESOLVABLE_ADDR 0x0005
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#define SCTP_CAUSE_UNRECOG_CHUNK 0x0006
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#define SCTP_CAUSE_INVALID_PARAM 0x0007
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#define SCTP_CAUSE_UNRECOG_PARAM 0x0008
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#define SCTP_CAUSE_NO_USER_DATA 0x0009
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#define SCTP_CAUSE_COOKIE_IN_SHUTDOWN 0x000a
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#define SCTP_CAUSE_RESTART_W_NEWADDR 0x000b
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#define SCTP_CAUSE_USER_INITIATED_ABT 0x000c
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#define SCTP_CAUSE_PROTOCOL_VIOLATION 0x000d
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/* Error causes from draft-ietf-tsvwg-addip-sctp */
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#define SCTP_CAUSE_DELETING_LAST_ADDR 0x0100
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#define SCTP_CAUSE_RESOURCE_SHORTAGE 0x0101
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#define SCTP_CAUSE_DELETING_SRC_ADDR 0x0102
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#define SCTP_CAUSE_ILLEGAL_ASCONF_ACK 0x0103
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#define SCTP_CAUSE_REQUEST_REFUSED 0x0104
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/* Error causes from draft-ietf-tsvwg-sctp-auth */
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#define SCTP_CAUSE_UNSUPPORTED_HMACID 0x0105
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/*
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* error cause parameters (user visisble)
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*/
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struct sctp_error_cause {
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uint16_t code;
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uint16_t length;
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/* optional cause-specific info may follow */
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};
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struct sctp_error_invalid_stream {
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struct sctp_error_cause cause; /* code=SCTP_ERROR_INVALID_STREAM */
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uint16_t stream_id; /* stream id of the DATA in error */
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uint16_t reserved;
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};
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struct sctp_error_missing_param {
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struct sctp_error_cause cause; /* code=SCTP_ERROR_MISSING_PARAM */
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uint32_t num_missing_params; /* number of missing parameters */
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/* uint16_t param_type's follow */
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};
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struct sctp_error_stale_cookie {
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struct sctp_error_cause cause; /* code=SCTP_ERROR_STALE_COOKIE */
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uint32_t stale_time; /* time in usec of staleness */
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};
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struct sctp_error_out_of_resource {
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struct sctp_error_cause cause; /* code=SCTP_ERROR_OUT_OF_RESOURCES */
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};
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struct sctp_error_unresolv_addr {
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struct sctp_error_cause cause; /* code=SCTP_ERROR_UNRESOLVABLE_ADDR */
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};
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struct sctp_error_unrecognized_chunk {
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struct sctp_error_cause cause; /* code=SCTP_ERROR_UNRECOG_CHUNK */
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struct sctp_chunkhdr ch;/* header from chunk in error */
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};
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#define HAVE_SCTP 1
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#define HAVE_KERNEL_SCTP 1
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#define HAVE_SCTP_PRSCTP 1
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#define HAVE_SCTP_ADDIP 1
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#define HAVE_SCTP_CANSET_PRIMARY 1
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#define HAVE_SCTP_SAT_CAPABILITY 1
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#define HAVE_SCTP_MULTIBUF 1
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#define HAVE_SCTP_NOCONNECT 0
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#define HAVE_SCTP_ECN_NONCE 1 /* ECN Nonce option */
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#define HAVE_SCTP_AUTH 1
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#define HAVE_SCTP_EXT_RCVINFO 1
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#define HAVE_SCTP_CONNECTX 1
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/*
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* Main SCTP chunk types we place these here so natd and f/w's in user land
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* can find them.
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*/
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/************0x00 series ***********/
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#define SCTP_DATA 0x00
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#define SCTP_INITIATION 0x01
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#define SCTP_INITIATION_ACK 0x02
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#define SCTP_SELECTIVE_ACK 0x03
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#define SCTP_HEARTBEAT_REQUEST 0x04
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#define SCTP_HEARTBEAT_ACK 0x05
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#define SCTP_ABORT_ASSOCIATION 0x06
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#define SCTP_SHUTDOWN 0x07
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#define SCTP_SHUTDOWN_ACK 0x08
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#define SCTP_OPERATION_ERROR 0x09
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#define SCTP_COOKIE_ECHO 0x0a
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#define SCTP_COOKIE_ACK 0x0b
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#define SCTP_ECN_ECHO 0x0c
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#define SCTP_ECN_CWR 0x0d
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#define SCTP_SHUTDOWN_COMPLETE 0x0e
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/* draft-ietf-tsvwg-sctp-auth */
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#define SCTP_AUTHENTICATION 0x0f
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/************0x40 series ***********/
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/************0x80 series ***********/
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/* draft-ietf-tsvwg-addip-sctp */
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#define SCTP_ASCONF_ACK 0x80
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/* draft-ietf-stewart-pktdrpsctp */
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#define SCTP_PACKET_DROPPED 0x81
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/* draft-ietf-stewart-strreset-xxx */
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#define SCTP_STREAM_RESET 0x82
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/************0xc0 series ***********/
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/* RFC3758 */
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#define SCTP_FORWARD_CUM_TSN 0xc0
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/* draft-ietf-tsvwg-addip-sctp */
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#define SCTP_ASCONF 0xc1
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/* ABORT and SHUTDOWN COMPLETE FLAG */
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#define SCTP_HAD_NO_TCB 0x01
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/* Packet dropped flags */
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#define SCTP_FROM_MIDDLE_BOX SCTP_HAD_NO_TCB
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#define SCTP_BADCRC 0x02
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#define SCTP_PACKET_TRUNCATED 0x04
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#define SCTP_SAT_NETWORK_MIN 400 /* min ms for RTT to set satellite
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* time */
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#define SCTP_SAT_NETWORK_BURST_INCR 2 /* how many times to multiply maxburst
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* in sat */
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/* Data Chuck Specific Flags */
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#define SCTP_DATA_FRAG_MASK 0x03
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#define SCTP_DATA_MIDDLE_FRAG 0x00
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#define SCTP_DATA_LAST_FRAG 0x01
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#define SCTP_DATA_FIRST_FRAG 0x02
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#define SCTP_DATA_NOT_FRAG 0x03
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#define SCTP_DATA_UNORDERED 0x04
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/* ECN Nonce: SACK Chunk Specific Flags */
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#define SCTP_SACK_NONCE_SUM 0x01
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/* CMT DAC algorithm SACK flag */
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#define SCTP_SACK_CMT_DAC 0x80
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#include <netinet/sctp_uio.h>
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#endif /* !_NETINET_SCTP_H_ */
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