src/sys/compat/linux/linux_mib.c, branch releng/15.0

linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743

2023-08-18T10:12:02+00:00

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

2023-08-16T17:54:36+00:00

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

linux(4): Use pwd_altroot() to tell namei() about ABI root path

2023-05-29T08:16:46+00:00

PR:			72920
Differential Revision:	https://reviews.freebsd.org/D40090
MFC after:		2 month

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-05-12T16:44:03+00:00

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix

linux(4): Cleanup includes under compat/linux

2023-02-14T14:46:32+00:00

Cleanup unneeded includes, sort the rest according to style(9).
No functional changes.

MFC after:		2 weeks

linux: Make compat.linux.preserve_vstatus default to 1

2022-01-17T08:45:01+00:00

From a user point of view, this makes ^T work out of the box.

Reviewed By:	debdrup (man page)
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D33842

Change the return type of sv__setid_allowed from bool to int

2021-06-06T20:38:48+00:00

to please some userspace code using sys/sysent.h.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

linuxolator: Add compat.linux.setid_allowed knob

2021-06-06T18:43:00+00:00

PR:	21463
Reported by:	kris
Reviewed by:	dchagin
Tested by:	trasz
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D28154

- add more linux socket options (sorted by value)

2020-11-08T09:50:58+00:00

 - map those IPv4 / IPv6 socket options which exist in FreeBSD
   + most of them visually verified to have the same type/layout of arguments
   + not tested with linux programs to behave as intended
 - be more human readable for known options which are not handled
 - be more verbose for unhandled socket message flags we know about
 - print the jail ID in linux_msg if run in a jail
 - add possibility to print debug message about known missing parts only once
 - add multiple levels of sysctl linux.debug:
   1: print debug messages, tell about unimplemented stuff (only once)
   2: like 1, but also print messages about implemented but not tested
      stuff (only once)
   3+: like 2, but no rate limiting of messages
 - increase default linux debug level from 1 to 3

We are a lot more verbose in as we need to be (e.g. some of the IP socket
options which are the same, and share the same memory layout, and are
believed to work). The reason is that we have no good testsuite to test those
linux-bits. The LTP or other test suites like the python one, are not fully
up to the task we need. As such the excessive messages about emulated but not
tested socket options.

IMO any MFC (possible, but most probably not by me) should set the default
debug level to 1.

Discussed with:	trasz

Add compat.linux.dummy_rlimits, and disable by default.

2020-10-18T15:58:16+00:00

Turns out the dummy rlimits fix prlimit(1), but break su(8)
(login-1:4.5-1ubuntu2) - although not sudo(8), for some reason.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26814