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370 commits

Author SHA1 Message Date
Michael Tuexen
112899c6af sctp: improve input validation of mapped addresses in sctp_connectx() 
MFC after:	3 days
 2021-08-07 15:12:09 +02:00
Michael Tuexen
105b68b42d sctp: Fix errno in case of association setup failures 
Do not report always ETIMEDOUT, but only when appropriate. In
other cases report ECONNABORTED.

MFC after:	3 days
 2021-07-09 23:19:25 +02:00
Michael Tuexen
ce64352a70 sctp: provide consistent stream information in case of early errors 
While there, make sure the function is called correctly.

MFC after:	3 days
 2021-07-09 14:16:59 +02:00
Michael Tuexen
84992a3251 sctp: provide sac_error also for ABORT chunk being sent 
Thanks to Florent Castelli for bringing this issue up for the
userland stack and providing an initial patch.

MFC:		3 days
 2021-07-09 13:46:27 +02:00
Michael Tuexen
c7f048ab35 sctp: initialize sequence numbers for ECN correctly 
MFC after:	3 days
Reported by:	Junseok Yang (for the userland stack)
 2021-06-27 20:14:48 +02:00
Mark Johnston
a100217489 Consistently use the SOCKBUF_MTX() and SOCK_MTX() macros 
This makes it easier to change the socket locking protocols.  No
functional change intended.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
 2021-06-14 17:32:32 -04:00
Michael Tuexen
e010d20032 sctp: update the vtag for INIT and INIT-ACK chunks 
This is needed in case of responding with an ABORT to an INIT-ACK.
 2021-04-30 13:33:16 +02:00
Michael Tuexen
d995cc7e54 sctp: fix handling of RTO.initial of 1 ms 
MFC after:	3 days
Reported by:	syzbot+5eb0e009147050056ce9@syzkaller.appspotmail.com
 2021-03-22 16:44:18 +01:00
Michael Tuexen
70e95f0b69 sctp: avoid integer overflow when starting the HB timer 
MFC after:	3 days
Reported by:	syzbot+14b9d7c3c64208fae62f@syzkaller.appspotmail.com
 2021-02-27 23:27:30 +01:00
Michael Tuexen
bdd4630c9a sctp: small cleanup, no functional change intended. 
MFC after:	3 days
 2021-02-01 14:04:57 +01:00
Michael Tuexen
7a051c0a78 sctp: improve consistency 
No functional change intended.

MFC:	1 week
 2021-01-24 00:07:41 +01:00
Michael Tuexen
6176f9d6df Remove dead stores reported by clang static code analysis 
MFC after:		3 days
 2020-10-06 11:08:52 +00:00
Mateusz Guzik
662c13053f net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
Michael Tuexen
f5d30f7f76 Improve the handling of concurrent send() calls for SCTP sockets, 
especially when having the explicit EOR mode enabled.

Reported by:		Megan2013678@protonmail.com
Reported by:		syzbot+bc02585076c3cc977f9b@syzkaller.appspotmail.com
MFC after:		3 days
 2020-08-16 11:50:37 +00:00
Michael Tuexen
04996cb74b Enter epoch earlier. This is needed because we are exiting it also 
in error cases.

MFC after:	1 week
 2020-08-15 11:22:07 +00:00
Michael Tuexen
8745f898c4 Add reference counts for inp/stcb/net when timers are running. 
This avoids a use-after-free reported for the userland stack.
Thanks to Taylor Brandstetter for suggesting a patch for
the userland stack.

MFC after:		1 week
 2020-07-19 12:34:19 +00:00
Michael Tuexen
7f0ad2274b Improve the locking of address lists by adding some asserts and 
rearranging the addition of address such that the lock is not
given up during checking and adding.

MFC after:		1 week
 2020-07-17 15:09:49 +00:00
Michael Tuexen
7a3f60e7f5 Fix a bug introduced in https://svnweb.freebsd.org/changeset/base/362173 
Reported by:		syzbot+f3a6fccfa6ae9d3ded29@syzkaller.appspotmail.com
MFC after:		1 week
 2020-06-30 21:50:05 +00:00
Michael Tuexen
171edd2110 Fix the build for an INET6 only configuration. 
The fix from the last commit is actually needed twice...

MFC after:		1 week
 2020-06-21 09:56:09 +00:00
Michael Tuexen
5087b6e732 Set a variable also in the case of an INET6 only kernel 
MFC after:		1 week
 2020-06-20 23:48:57 +00:00
Michael Tuexen
7621bd5ead Cleanup the adding and deleting of addresses via sctp_bindx(). 
There is no need to use the association identifier, so remove it.
While there, cleanup the code a bit.

MFC after:		1 week
 2020-06-20 20:20:16 +00:00
Michael Tuexen
7a9dbc33f9 Remove last argument of sctp_addr_mgmt_ep_sa(), since it is not used. 
MFC after:		1 week
 2020-06-19 12:35:29 +00:00
Michael Tuexen
2d87bacde4 Allow the self reference to be NULL in case the timer was stopped. 
Submitted by:		Timo Voelker
MFC after:		1 week
 2020-06-17 15:27:45 +00:00
Michael Tuexen
4471043177 Cleanups, no functional change. 
MFC after:		1 week
 2020-06-14 09:50:00 +00:00
Michael Tuexen
28397ac1ed Non-functional changes due to upstream cleanup. 
MFC after:		1 week
 2020-06-11 13:34:09 +00:00
Michael Tuexen
5fb132abbb Whitespace cleanups and removal of a stale comment. 
MFC after:		1 week
 2020-06-08 20:23:20 +00:00
Michael Tuexen
70486b27ae Retire SCTP_SO_LOCK_TESTING. 
This was intended to test the locking used in the MacOS X kernel on a
FreeBSD system, to make use of WITNESS and other debugging infrastructure.
This hasn't been used for ages, to take it out to reduce the #ifdef
complexity.

MFC after:		1 week
 2020-06-07 14:39:20 +00:00
Michael Tuexen
04ce5df9c9 Remove redundant assignment. 
MFC after:		3 days
 2020-05-18 19:23:01 +00:00
Michael Tuexen
88116b7e4d Fix logical condition by looking at usecs. 
This issue was found by cpp-check running on the userland stack.

MFC after:		3 days
 2020-05-18 15:02:15 +00:00
Michael Tuexen
00023d8a87 Whitespace change. 
MFC after:		3 days
 2020-05-18 15:00:18 +00:00
Michael Tuexen
83ed508055 Ensure that the SCTP iterator runs with an stcb and inp, which belong to 
each other.

Reported by:	syzbot+82d39d14f2f765e38db0@syzkaller.appspotmail.com
MFC after:	3 days
 2020-05-10 22:54:30 +00:00
Michael Tuexen
efd5e69291 Ensure that we have a path when starting the T3 RXT timer. 
Reported by:	syzbot+f2321629047f89486fa3@syzkaller.appspotmail.com
MFC after:	3 days
 2020-05-10 17:19:19 +00:00
Michael Tuexen
f4cb790a35 Do more argument validation under INVARIANTS when starting/stopping 
an SCTP timer.

MFC after:		1 week
 2020-04-06 13:58:13 +00:00
Michael Tuexen
25ec355353 Handle integer overflows correctly when converting msecs and secs to 
ticks and vice versa.
These issues were caught by recently added panic() calls on INVARIANTS
systems.

Reported by:		syzbot+b44787b4be7096cd1590@syzkaller.appspotmail.com
Reported by:		syzbot+35f82d22805c1e899685@syzkaller.appspotmail.com
MFC after:		1 week
 2020-03-28 20:25:45 +00:00
Michael Tuexen
7c63520c42 Remove an optimization, which was incorrect a couple of times and 
therefore doesn't seem worth to be there.
In this case COOKIE where not retransmitted anymore, when the
socket was already closed.

MFC after:		1 week
 2020-03-25 18:20:37 +00:00
Michael Tuexen
37686ccf08 Improve consistency in debug output. 
MFC after:		1 week
 2020-03-25 18:14:12 +00:00
Michael Tuexen
23e3c0880d Use consistent debug output. 
MFC after:		1 week
 2020-03-25 13:19:41 +00:00
Michael Tuexen
e056fafd92 Don't restore the vnet too early in error cases. 
MFC after:		1 week
 2020-03-25 13:18:37 +00:00
Michael Tuexen
7522682e5e Only call panic when building with INVARIANTS. 
MFC after:		1 week
 2020-03-24 23:04:07 +00:00
Michael Tuexen
a412576e36 Another cleanup of the timer code. Also be more pedantic about the 
parameters of the timer start and stop routines. Several inconsistencies
have been fixed in earlier commits. Now they will be catched when running
an INVARIANTS system.

MFC after:	1 week
 2020-03-24 22:44:36 +00:00
Michael Tuexen
a57fb68b92 More timer cleanups, no functional change. 
MFC after:		1 week
 2020-03-21 16:12:19 +00:00
Michael Tuexen
6fb7b4fbdb Consistently provide arguments for timer start and stop routines. 
This is another step in cleaning up timer handling.
MFC after:		1 week
 2020-03-19 21:01:16 +00:00
Michael Tuexen
e95b3d7faf Cleanup the stream reset and asconf timer. 
MFC after:		1 week
 2020-03-19 18:55:54 +00:00
Michael Tuexen
42078d5ada The MTU candidates MUST be a multiple of 4, so make them so. 
MFC after:		1 week
 2020-03-19 14:37:28 +00:00
Michael Tuexen
0554e01d8b Handle the timers in a consistent sequence according to the definition 
of the timer type.
Just a cleanup, no functional change intended.

MFC after:		1 week
 2020-03-17 19:20:12 +00:00
Michael Tuexen
868b51f234 Epochify SCTP. 2020-02-18 21:25:17 +00:00
Michael Tuexen
8803350d6d Revert https://svnweb.freebsd.org/changeset/base/357761 
This was suggested by cem@
 2020-02-11 20:02:20 +00:00
Michael Tuexen
9803f01cdb Don't start an SCTP timer using a net, which has been removed. 
Submitted by:		Taylor Brandstetter
MFC after:		1 week
 2020-02-11 18:15:57 +00:00
Michael Tuexen
95d27478d2 Use an int instead of a bool variable, since bool is not supported 
on all platforms the stack is running on in userland.
 2020-02-11 14:00:27 +00:00
Michael Tuexen
5555400aa5 Cleanup timer handling. 
Submitted by:	Taylor Brandstetter
MFC after:	1 week
 2020-02-09 22:05:41 +00:00