Commit Graph

82 Commits

Author SHA1 Message Date
Michael Tuexen
3ff78fbbd9 Add protection code to free memory in case of processing an address which
is neither IPv4 or IPv6.

Reported by:	Coverity
CID:		749311
MFC after:	1 week
2015-01-18 20:53:20 +00:00
Michael Tuexen
f104b614a0 Remove dead code.
Reported by:	Coverity
CID:		1018053
MFC after:	1 week
2015-01-12 07:29:35 +00:00
Michael Tuexen
448e859674 Remove dead code.
Reported by:	Coverity
CID:		748660, 748661
MFC after:	1 week
2015-01-11 22:23:39 +00:00
Michael Tuexen
23602b60fb Address another warnings reported by Patrick Laimbock when compiling
in userspace. While there, improve consistency.

MFC after: 1 week
2014-09-07 17:07:19 +00:00
Michael Tuexen
24aaac8d59 Use union sctp_sockstore instead of struct sockaddr_storage. This
eliminiates some warnings when building in userland.
Thanks to Patrick Laimbock for reporting this issue.
Remove also some unnecessary casts.
There should be no functional change.

MFC after: 1 week
2014-09-07 09:06:26 +00:00
Michael Tuexen
c79bec9c75 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
Michael Tuexen
6ba22f19ca Honor jails for unbound SCTP sockets when selecting source addresses,
reporting IP-addresses to the peer during the handshake, adding
addresses to the host, reporting the addresses via the sysctl
interface (used by netstat, for example) and reporting the
addresses to the application via socket options.
This issue was reported by Bernd Walter.

MFC after: 3 days
2014-06-20 13:26:49 +00:00
Michael Tuexen
a9d94d290b Make sure that we don't try to build an ASCONF-ACK chunk
larger than what fits in the the mbuf cluster.
This issue was reported by Andrew Galante.

MFC after: 3 days
2013-11-07 17:08:09 +00:00
Michael Tuexen
c9eb4473b4 Use htons()/ntohs() appropriately.
These issues were reported by Andrew Galante.

MFC after: 3 days
2013-11-07 16:37:12 +00:00
Michael Tuexen
b54ddf225f Changes from upstream to improve compilation when INET or INET6
or none of them is defined.

MFC after: 3 days
2013-11-02 20:12:19 +00:00
Michael Tuexen
88a95b1f25 Allow the code to be compiled without warnings for any combination
of INET, INET6 and SCTP_DEBUG defines.
The issue was reported by Lally Singh.

MFC after: 2 weeks
2013-07-20 13:14:59 +00:00
Michael Tuexen
a1cb341b5d 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
Gleb Smirnoff
eb1b1807af Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags within sys.

Exceptions:

- sys/contrib not touched
- sys/mbuf.h edited manually
2012-12-05 08:04:20 +00:00
Michael Tuexen
fe6bb0a788 Whitespace cleanup.
MFC after: 10 days
2012-09-08 20:54:54 +00:00
Michael Tuexen
dd294dcec6 Using %p in a format string requires a void *.
MFC after: 10 days
2012-09-05 18:52:01 +00:00
Michael Tuexen
5e20b91dbe Changes which improve compilation if neither INET nor INET6 is defined.
MFC after: 3 days
2012-07-15 20:16:17 +00:00
Michael Tuexen
b1754ad17b Pass the src and dst address of a received packet explicitly around.
MFC after: 3 days
2012-06-28 16:01:08 +00:00
Michael Tuexen
b82bd838f6 Use an existing function to get the source address.
MFC after: 3 days
2012-06-03 14:54:50 +00:00
Michael Tuexen
11ef11db47 Small cleanups. No functional change.
MFC after: 3 days
2012-06-01 08:26:50 +00:00
Michael Tuexen
807aad636f Use consistent text at the begining of the files.
MFC after: 3 days
2012-05-23 11:26:28 +00:00
Michael Tuexen
a2b42326b5 Provide in the association change notification the received ABORT chunk
if case of SCTP_COMM_LOST or SCTP_CANT_STR_ASSOC as required by RFC 6458.

MFC after: 3 days
2012-05-12 20:11:35 +00:00
Michael Tuexen
60990c0c06 Address issues found by clang. While there, fix also some style
issues.

MFC after: 3 months.
2011-12-27 10:16:24 +00:00
Michael Tuexen
7215cc1b74 Fix unused parameter warnings.
While there, fix some whitespace issues.

MFC after: 3 months.
2011-12-17 19:21:40 +00:00
Michael Tuexen
3657c405e3 Fix a typo introduced in
http://svn.freebsd.org/changeset/base/225571
Reported by Ilya A. Arkhipov.

Approved by: re
MFC after: 1 month.
2011-09-15 12:20:52 +00:00
Michael Tuexen
92776dfd5a Make sure that SCTP rejects broadcast, multicast and wildcard addresses
as remote addresses.

Approved by: re
MFC after: 1 month.
2011-09-15 08:49:54 +00:00
Michael Tuexen
ca85e9482a 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
Michael Tuexen
274b0bd51d Remove code with any effect. 2011-05-03 20:34:02 +00:00
Michael Tuexen
1d663b4658 Add a missing break. This bug was introduced in r221249.
MFC after: 1 week
2011-05-03 20:32:21 +00:00
Michael Tuexen
e6194c2ed4 Improve compilation of SCTP code without INET support.
Some bugs where fixed while doing this:
* ASCONF-ACK messages might use wrong port number when using
  IPv6.
* Checking for additional addresses takes the correct address
  into account and also does not do more comparisons than
  necessary.

This patch is based on one received from bz@ who was
sponsored by The FreeBSD Foundation and iXsystems.

MFC after: 1 week
2011-04-30 11:18:16 +00:00
Michael Tuexen
2678fe1ee9 Remove addresses from endpoint when there are no associations.
This fixes a bug reported by brucec@.

MFC after: 3 months.
2011-02-10 14:46:37 +00:00
Randall Stewart
5d40cf5d23 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
Randall Stewart
dec0177df6 1) Move per John Baldwin to mp_maxid
2) Some signed/unsigned errors found by Mac OS compiler (from Michael)
3) a couple of copyright updates on the effected files.

MFC after:	3 months
2011-02-03 19:22:21 +00:00
Michael Tuexen
20b07a4d85 Define and use SCTP_SSN_GE, SCTP_SSN_GT, SCTP_TSN_GE, SCTP_TSN_GT macros
and use them instead of the generic compare_with_wrap.
Retire compare_with_wrap.

MFC after: 3 months.
2010-12-30 21:32:35 +00:00
Michael Tuexen
4a9ef3f833 Code cleanup: Use LIST_FOREACH, LIST_FOREACH_SAFE, TAILQ_FOREACH,
TAILQ_FOREACH_SAFE where appropriate.
No functional change.

MFC after: 3 months.
2010-12-30 16:56:20 +00:00
Michael Tuexen
8ced7318a0 Fix three bugs related to the sequence number wrap-around affecting
the processing of ECNE and ASCONF chunks.

Reviewed by: rrs
MFC after: 3 days.
2010-12-30 16:23:13 +00:00
Michael Tuexen
9eea4a2da7 Delay the assignment of a path for DATA chunk until they hit
the sent_queue. Honor a given path when the SCTP_ADDR_OVER
flag is set.

MFC after: 2 weeks.
2010-09-15 23:10:45 +00:00
Michael Tuexen
fc066a6137 * Fix a bug where the length of the ASCONF-ACK was calculated wrong due
to using an uninitialized variable.
* Fix a bug where a NULL pointer was dereferenced when interfaces
  come and go at a high rate.
* Fix a bug where inps where not deregistered from iterators.
* Fix a race condition in freeing an association.
* Fix a refcount problem related to the iterator.
Each of the above bug results in a panic. It shows up when
interfaces come and go at a high rate.

Obtained from: rrs (partly)
MFC after: 3 days
2010-06-14 21:25:07 +00:00
Michael Tuexen
f31e6c7f26 * Fix compilation when using SCTP_AUDITING_ENABLED.
* Fix delaying of SACK by taking out old optimization code
  which does not optimize anymore.
* Fix fast retransmission of chunks abandoned by the
  "number of retransmissions" policy.

MFC after: 3 days.
2010-04-23 08:19:47 +00:00
Michael Tuexen
b5c164935e * Fix some race condition in SACK/NR-SACK processing.
* Fix handling of mapping arrays when draining mbufs or processing
  FORWARD-TSN chunks.
* Cleanup code (no duplicate code anymore for SACKs and NR-SACKs).
Part of this code was developed together with rrs.
MFC after: 2 weeks.
2010-04-03 15:40:14 +00:00
Martin Blapp
c2ede4b379 Remove extraneous semicolons, no functional changes.
Submitted by:	Marc Balmer <marc@msys.ch>
MFC after:	1 week
2010-01-07 21:01:37 +00:00
Michael Tuexen
87b4fcd323 Do not start the iterator when there are no associations.
This fixes a bug found by Irene Ruengeler.

Approved by: rrs (mentor)
MFC after: 1 month
2009-11-17 13:11:23 +00:00
Randall Stewart
482444b4a5 Support for VNET in SCTP (hopefully) 2009-09-17 15:11:12 +00:00
Randall Stewart
830d754d52 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
Randall Stewart
d6af161a34 - Out with some printfs.
- Fix a initialization of last_tsn_used
- Fix handling of mapped IPv4 addresses
Obtained from:	Michael Tuexen and I :-)
MFC after:	1 week
2008-07-29 09:06:35 +00:00
Randall Stewart
fc14de76f4 1) Adds the rest of the VIMAGE change macros
2) Adds some __UserSpace__ on some of the common defines that
   the user space code needs
3) Fixes a bug when we send up data to a user that failed. We
   need to a) trim off the data chunk headers, if present, and
   b) make sure the frag bit is communicated properly for the
   msgs coming off the stream queues... i.e. we see if some
   of the msg has been taken.

Obtained from:	jeli contributed the VIMAGE changes on this pass Thanks Julain!
2008-07-09 16:45:30 +00:00
Randall Stewart
b3f1ea41fd - 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
Randall Stewart
c54a18d26b - 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
Randall Stewart
5e2c2d872b Allow SCTP to compile without INET6.
PR:		116816
Obtained from	tuexen@fh-muenster.de:
MFC after:	2 weeks
2008-04-16 17:24:18 +00:00
Randall Stewart
d55b0b1b09 - Bug fix managing congestion parameter on immediate
retransmittion by handover event (fast mobility code)
- Fixed problem of mobility code which is caused by remaining
  parameters in the deleted primary destination.
- Add a missing lock. When a peer sends an INIT, and while we
  are processing it to send an INIT-ACK the socket is closed,
  we did not hold a lock to keep the socket from going away.
  Add protection for this case.
- Fix so that arwnd is alway uses the minimal rwnd if the user
  has set the socket buffer smaller. Found this when the test
  org decided to see what happens when you set in a rwnd of 10
  bytes (which is not allowed per RFC .. 4k is minimum).
- Fixes so a cookie-echo ootb will NOT cause an abort to
  be sent. This was happening in a MPI collision case.
- Examined all panics and unless there was no recovery, moved
  any that were not already to INVARANTS.

Approved by:	re@freebsd.org (gnn)
2007-10-01 03:22:29 +00:00
Randall Stewart
c99efcf633 - The address lock is changed to a rwlock. This
also involves macro changes to have a RLOCK and a WLOCK
  and placing the correct version within the code.
- The INP-INFO lock is changed to a rwlock.
- When sctp_shutdown() is called on Mac OS X, the socket lock is held.
  So call sctp_chunk_output with SCTP_SO_LOCKED and
  not SCTP_SO_NOT_LOCKED.
- Add SCTP_IPI_ADDR_[RW]LOCK and SCTP_IPI_ADDR_[RW]UNLOCK for Mac OS X.
- u_int64_t -> uint64_t
- add missing addr unlock for error return path
Approved by:	re@freebsd.org (K Smith)
2007-09-18 15:16:39 +00:00