sctp: cleanup handling of graceful shutdown of the peer

Don't handle a graceful shutdown of the peer as an implicit signal
that all partial messages are complete. First, this is not implemented
corr

sctp: cleanup handling of graceful shutdown of the peer

Don't handle a graceful shutdown of the peer as an implicit signal
that all partial messages are complete. First, this is not implemented
correctly and second this should not be done by the peer. It is more
appropriate to handle this as a protocol violation.
Remove the incorrect code and leave detecting the protocol violation
and its handling in a followup commit.

MFC after: 1 week

show more ...

sctp: cleanup cdefs.h include

sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

sctp: update zero checksum support

Implement support for the error detection method identifier.
MFC after: 2 weeks

sctp: initial implementation of draft-tuexen-tsvwg-sctp-zero-checksum

sctp: cleanup, no functional change

MFC after: 3 days

sctp: Cleanup stream schedulers.

No functional change intended.

MFC after: 1 week

sctp: Simplify stream scheduler usage

Callers are getting the stcb send lock, so just KASSERT that.
No need to signal this when calling stream scheduler functions.
No functional change intended.

MF

sctp: Simplify stream scheduler usage

Callers are getting the stcb send lock, so just KASSERT that.
No need to signal this when calling stream scheduler functions.
No functional change intended.

MFC after: 1 week

show more ...

sctp: improve consistency

No functional change intended.

MFC: 1 week

net: clean up empty lines in .c and .h files

MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

Merge ^/head r364264 through r364278.

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+bc02585076c3cc9

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

show more ...

More cleanups due to ifdef cleanup done upstream

MFC after: 1 week

Convert route caching to nexthop caching.

This change is build on top of nexthop objects introduced in r359823.

Nexthops are separate datastructures, containing all necessary information
to perfor

Convert route caching to nexthop caching.

This change is build on top of nexthop objects introduced in r359823.

Nexthops are separate datastructures, containing all necessary information
to perform packet forwarding such as gateway interface and mtu. Nexthops
are shared among the routes, providing more pre-computed cache-efficient
data while requiring less memory. Splitting the LPM code and the attached
data solves multiple long-standing problems in the routing layer,
drastically reduces the coupling with outher parts of the stack and allows
to transparently introduce faster lookup algorithms.

Route caching was (re)introduced to minimise (slow) routing lookups, allowing
for notably better performance for large TCP senders. Caching works by
acquiring rtentry reference, which is protected by per-rtentry mutex.
If the routing table is changed (checked by comparing the rtable generation id)
or link goes down, cache record gets withdrawn.

Nexthops have the same reference counting interface, backed by refcount(9).
This change merely replaces rtentry with the actual forwarding nextop as a
cached object, which is mostly mechanical. Other moving parts like cache
cleanup on rtable change remains the same.

Differential Revision: https://reviews.freebsd.org/D24340

show more ...

Some more uint32_t cleanups, no functional change.

MFC after: 1 week

Use uint32_t where it is expected to be used. No functional change.

MFC after: 1 week

Merge ^/head r357408 through r357661.

Remove unused timer.

Submitted by: Taylor Brandstetter

MFHead@r345677

Fix build issue for the userland stack.
Joint work with rrs@.

MFC after: 1 week

Fox more signed unsigned issues. This time on the send path.
This is joint work with rrs@ and was found by running syzkaller.

MFC after: 1 week

Whitespace changes due to changes in ident.

Revert https://svnweb.freebsd.org/changeset/base/336503
since I also ran the export script with different parameters.

Whitespace changes due to change if ident.