Commit Graph

72 Commits

Author SHA1 Message Date
tuexen
9bf2bb1b21 Whitespace changes due to changes in ident. 2018-07-19 20:16:33 +00:00
tuexen
14de4a3d5b Revert https://svnweb.freebsd.org/changeset/base/336503
since I also ran the export script with different parameters.
2018-07-19 20:11:14 +00:00
tuexen
5810243631 Whitespace changes due to change if ident. 2018-07-19 19:33:42 +00:00
pfg
4736ccfd9c sys: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:43:44 +00:00
tuexen
5a3fccd9bc Remove code not used on any platform currently supported.
MFC after:	1 week
2017-09-16 21:26:06 +00:00
rrs
28010098ff This is work done by Michael Tuexen and myself at the IETF. This
adds the new I-Data (Interleaved Data) message. This allows a user
to be able to have complete freedom from Head Of Line blocking that
was previously there due to the in-ability to send multiple large
messages without the TSN's being in sequence. The code as been
tested with Michaels various packet drill scripts as well as
inter-networking between the IETF's location in Argentina and Germany.
2016-04-07 09:10:34 +00:00
tuexen
5429764526 Cleanup the handling of error causes for ERROR chunks. This fixes
an inconsistency of the padding handling. The final padding is
now considered to be a chunk padding.

MFC after:	1 week
2015-09-12 17:08:51 +00:00
tuexen
484c3b2b61 Add a SCTP socket option to limit the cwnd for each path.
MFC after: 1 month
2015-03-10 19:49:25 +00:00
tuexen
4feb6f37e3 Add support for the SCTP_PR_STREAM_STATUS and SCTP_PR_ASSOC_STATUS
socket options. This includes managing the correspoing stat counters.
Add the SCTP_DETAILED_STR_STATS kernel option to control per policy
counters on every stream. The default is off and only an aggregated
counter is available. This is sufficient for the RTCWeb usecase.

MFC after: 1 week
2014-08-13 15:50:16 +00:00
tuexen
b57b7cb252 Add support for the SCTP_AUTH_SUPPORTED and SCTP_ASCONF_SUPPORTED
socket options. Add also a sysctl to control the support of ASCONF.

MFC after: 1 week
2014-08-12 11:30:16 +00:00
tuexen
e7d5338a8e Add support for the SCTP_RECONFIG_SUPPORTED and the corresponding
sysctl controlling the negotiation of the RE-CONFIG extension.

MFC after: 3 days
2014-08-04 20:07:35 +00:00
tuexen
ff18393ff0 Add support for the SCTP_PKTDROP_SUPPORTED socket option and
the corresponding sysctl variable.
The default is off, since the specification is not an RFC yet.

MFC after: 1 week
2014-08-03 18:12:55 +00:00
tuexen
fb7bbef5e1 Add SCTP socket option SCTP_NRSACK_SUPPORTED to control the
NRSACK extension. The default will still be off, since it
it not an RFC (yet).
Changing the sysctl name will be in a separate commit.

MFC after: 1 week
2014-08-03 14:10:10 +00:00
tuexen
31e0173d95 Add support for the SCTP_PR_SUPPORTED socket option as specified in
http://tools.ietf.org/html/draft-ietf-tsvwg-sctp-prpolicies
Add also a sysctl controlling the default of the end-points.

MFC after: 1 week
2014-08-02 21:36:40 +00:00
tuexen
9ad96316d8 Cleanup the ECN configuration handling and provide an SCTP socket
option for controlling ECN on future associations and get the
status on current associations.
A simialar pattern will be used for controlling SCTP extensions in
upcoming commits.
2014-08-02 17:35:13 +00:00
tuexen
156da197a9 Send the correct error cause, when a DATA chunk with no user data
is received. This bug was reported by Irene Ruengeler.

MFC after: 3 days
2014-04-19 19:21:06 +00:00
tuexen
529b98b943 * Provide information in error causes in ASCII instead of
proprietary binary format.
* Add support for a diagnostic information error cause.
  The code is sysctlable and the default is 0, which
  means it is not sent.

This is joint work with rrs@.

MFC after: 1 week
2014-03-16 12:32:16 +00:00
tuexen
4f721683c9 SCTP uses CRC32C and not Adler anymore. While there change the reference
to RFC 4960.
This does not change any code, just comments.

MFC after: 3 days
2014-03-12 15:30:40 +00:00
tuexen
46940b6a95 Make the features a 64-bit value instead of 32-bit.
This will allow an easier integration of the support
for NDATA.
While there, do also some minor cleanups.
Obtained from:	rrs@
MFC after: 2 weeks
2013-08-12 13:52:15 +00:00
tuexen
026c1e8b1a Cleanup the handling of address scopes. Announce in the INIT/INIT-ACK
only the supported address types. While there, do some whitespace
cleanups.

MFC after: 1 week
2013-02-09 17:26:14 +00:00
tuexen
32e81f09e7 Undefine SCTP_PACKED before including sctp_uio.h, which doesn't
use it. Spotted by Irene Ruengeler.

MFC after: 3 days
2012-05-25 11:14:08 +00:00
tuexen
25827ad382 Use consistent text at the begining of the files.
MFC after: 3 days
2012-05-23 11:26:28 +00:00
tuexen
2342ad7e9e Remove a constant which is only used on non-FreeBSD platform.
(The actual code for the socket option handling has been #ifdefed
out forever...)

MFC after: 3 days.
2012-05-11 17:50:51 +00:00
tuexen
fd59ebc4f0 Add support for SCTP_SEND_FAILED_EVENT as required by RFC 6458.
MFC after: 3 days
2012-05-06 11:02:53 +00:00
tuexen
4ee7205a6e Add support for SCTP_STREAM_CHANGE_EVENT, SCTP_ASSOC_RESET_EVENT as
required by RFC 6525. This also fixes SCTP_STREAM_RESET_EVENT.

MFC after: 3 days
2012-05-04 15:49:08 +00:00
rrs
ddfb5c5980 Make stream our stream reset implementation
compliant to RFC6525.

MFC after:	1 month
2012-03-29 13:36:53 +00:00
tuexen
3a4d069b21 Fix unused parameter warnings.
While there, fix some whitespace issues.

MFC after: 3 months.
2011-12-17 19:21:40 +00:00
tuexen
4de38879e5 Add support for the SCTP_REMOTE_UDP_ENCAPS_PORT socket option.
Retire the the now unused sctp_udp_tunneling_for_client_enable
sysctl variable.

MFC after: 3 months.
2011-11-20 15:00:45 +00:00
tuexen
680b9f90a2 Fix the enabling/disabling of Heartbeats and path MTU
discovery when using the SCTP_PEER_ADDR_PARAMS socket option.
Approved by: re
MFC after: 1 month.
2011-09-17 08:50:29 +00:00
tuexen
f47c615e88 The result of a joint work between rrs@ and myself at the IETF:
* Decouple the path supervision using a separate HB timer per path.
* Add support for potentially failed state.
* Bring back RTO.min to 1 second.
* Accept packets on IP-addresses already announced via an ASCONF
* While there: do some cleanups.

Approved by: re@
MFC after: 2 months.
2011-08-03 20:21:00 +00:00
tuexen
b127ed6f91 Add SCTP_DEFAULT_PRINFO socket option.
Fix the SCTP_DEFAULT_SNDINFO socket option: Don't clear the
PR SCTP policy when setting sinfo_flags.

MFC after: 1 month.
2011-06-16 21:12:36 +00:00
tuexen
6339980d37 Add support for the newly added SCTP API.
In particular add support for:
* SCTP_SNDINFO, SCTP_PRINFO, SCTP_AUTHINFO, SCTP_DSTADDRV4, and
  SCTP_DSTADDRV6 cmsgs.
* SCTP_NXTINFO and SCTP_RCVINFO cmgs.
* SCTP_EVENT, SCTP_RECVRCVINFO, SCTP_RECVNXTINFO and SCTP_DEFAULT_SNDINFO
  socket option.
* Special association ids (SCTP_FUTURE_ASSOC, ...)
* sctp_recvv() and sctp_sendv() functions.

MFC after: 1 month.
2011-06-15 23:50:27 +00:00
tuexen
0cc27c3d6b Implement Resource Pooling V2 and an MPTCP like congestion
control.
Based on a patch received from Martin Becke.

MFC after: 2 weeks.
2011-05-04 21:27:05 +00:00
rrs
1188e1f085 Tunes and fixes the new DC-CC to seem to hit the
right mix.  Still may need some tweaks but it
appears to almost not give away too much to an
RFC2581 flow, but can really minimize the amount of
buffers used in the net.

MFC after:	3 months
2011-03-08 11:58:25 +00:00
rrs
39c61f3851 Adds a new Congestion Control that helps reduce
the RTT that a flow will build up in buffers in
transit. It is a slight modification to RFC2581
but is more friendly i.e. less aggressive.

MFC after:	3 months
2011-03-01 00:37:46 +00:00
rrs
5b16134320 Improvements to CC modules:
1) Add four new points that allow you to get more information
   to cc algo's
2) Fix the case where user changes module on a existing TCB, in
   such a case, the initialization module needs to be called on all nets.
3) Move htcp_cc structure to a union that other modules can use.
4) Add 5th point for get/set socket options for cc_module specific options

MFC after:	2 months
2011-02-26 15:23:46 +00:00
rrs
fa5090f1dd 1) Typo correction in comments and one spacing change.
2) Mass update to all copyrights.
MFC after:	3 Months
2011-02-05 12:12:51 +00:00
rrs
181e76925b Fixes to ECN in SCTP.
1) ECN was on an association basis, this is incorrect and
   will not work with CMT or for that matter if the user
   is sending to multiple addresses. This commit makes
   ECN on a per path basis.
2) Adopt the new format for the ECN internet draft. This also
   maintains compatability with old format chunks as well.
3) Keep track of the real time of a RTT down to micro seconds.
   For some future conditional features (for like a data center
   this is good information to have).
MFC after:	1 month
2011-01-29 19:55:29 +00:00
tuexen
459496919d Add stream scheduling support.
This work is based on a patch received from Robin Seggelmann.

MFC after: 3 months.
2011-01-23 19:36:28 +00:00
tuexen
53e7c3f2f5 Add an SCTP socket option to retrieve the number of timeouts
of an association.

MFC after: 3 days.
2010-11-16 22:16:38 +00:00
brucec
696c4e1f9b Fix typos.
PR:	bin/148894
Submitted by:	olgeni
2010-11-09 10:59:09 +00:00
tuexen
8d90bd696f Fix the switching on/off of CMT using sysctl and socket option.
Fix the switching on/off of PF and NR-SACKs using sysctl.
Add minor improvement in handling malloc failures.
Improve the address checks when sending.

MFC after: 4 weeks
2010-08-28 17:59:51 +00:00
tuexen
de5b3a7add Fix a rece condition in the shutdown handling.
The race condition resulted in a panic.

MFC after: 3 days
2010-06-18 09:01:44 +00:00
rrs
8a5e849118 Changes to the NR-Sack code so that:
1) All bit disappears
2) The two sets of gaps (nr and non-nr) are
   disjointed, you don't have gaps struck in
   both places.

This adjusts us to coorespond to the new draft. Still
to-do, cleanup the code so that there are only one set
of sack routines (original NR-Sack done by E cloned all
sack code).
2009-06-17 12:34:56 +00:00
rrs
f25b21ac98 Fixes several PR-SCTP releated bugs.
- When sending large PR-SCTP messages over a
   lossy link we would incorrectly calculate the fwd-tsn
 - When receiving large multipart pr-sctp packets we would
   incorrectly send back a SACK that would renege improperly
   on already received packets thus causing unneeded retransmissions.
2009-03-14 13:42:13 +00:00
rrs
0f2b9dafa3 Code from the hack-session known as the IETF (and a
bit of debugging afterwards):
- Fix protection code for notification generation.
- Decouple associd from vtag
- Allow vtags to have less strigent requirements in non-uniqueness.
   o don't pre-hash them when you issue one in a cookie.
   o Allow duplicates and use addresses and ports to
     discriminate amongst the duplicates during lookup.
- Add support for the NAT draft draft-ietf-behave-sctpnat-00, this
  is still experimental and needs more extensive testing with the
  Jason Butt ipfw changes.
- Support for the SENDER_DRY event to get DTLS in OpenSSL working
  with a set of patches from Michael Tuexen (hopefully heading to OpenSSL soon).
- Update the support of SCTP-AUTH by Peter Lei.
- Use macros for refcounting.
- Fix MTU for UDP encapsulation.
- Fix reporting back of unsent data.
- Update assoc send counter handling to be consistent with endpoint sent counter.
- Fix a bug in PR-SCTP.
- Fix so we only send another FWD-TSN when a SACK arrives IF and only
  if the adv-peer-ack point progressed. However we still make sure
  a timer is running if we do have an adv_peer_ack point.
- Fix PR-SCTP bug where chunks were retransmitted if they are sent
  unreliable but not abandoned yet.

With the help of:	Michael Teuxen and Peter Lei :-)
MFC after:	 4 weeks
2008-12-06 13:19:54 +00:00
rrs
7818f3ed80 Adds support for the SCTP_PORT_REUSE option
Fixes a refcount bug found in the process

Obtained from:	With the help of Michael Tuexen
2008-07-31 11:08:30 +00:00
rrs
7782c49376 - Macro-izes the packed declaration in all headers.
- Vimage prep - these are major restructures to move
  all global variables to be accessed via a macro or two.
  The variables all go into a single structure.
- Asconf address addition tweaks (add_or_del Interfaces)
- Fix rwnd calcualtion to be more conservative.
- Support SACK_IMMEDIATE flag to skip delayed sack
  by demand of peer.
- Comment updates in the sack mapping calculations
- Invarients panic added.
- Pre-support for UDP tunneling (we can do this on
  MAC but will need added support from UDP to
  get a "pipe" of UDP packets in.
- clear trace buffer sysctl added when local tracing on.

Note the majority of this huge patch is all the vimage prep stuff :-)
2008-06-14 07:58:05 +00:00
rrs
8a66346564 - Adds support for the multi-asconf (From Kozuka-san)
- Adds some prepwork (Not all yet) for vimage in particular
  support the delete the sctppcbinfo.xx structs. There is
  still a leak in here if it were to be called plus we stil
  need the regrouping (From Me and Michael Tuexen)
- Adds support for UDP tunneling. For BSD there is no
  socket yet setup so its disabled, but major argument
  changes are in here to emcompass the passing of the port
  number (zero when you don't have a udp tunnel, the default
  for BSD). Will add some hooks in UDP here shortly (discussed
  with Robert) that will allow easy tunneling. (Mainly from
  Peter Lei and Michael Tuexen with some BSD work from me :-D)
- Some ease for windows, evidently leave is reserved by their
  compile move label leave: -> out:

MFC after:	1 week
2008-05-20 13:47:46 +00:00
rrs
a490cf2e7e - Define changes in sctp.h
- Bug in CA that does not get us incrementing the PBA properly which
  made us more conservative.
- comment updated in sctp_input.c
- memsets added before we log
- added arg to hmac id's
MFC after:	2 weeks
2008-05-20 09:51:36 +00:00