src/sbin/init, branch upstream/13.1.0

init: execute /etc/rc.final after all user processes have terminated

2021-08-26T06:42:00Z

This can be useful for, e.g., unmounting filesystems that were needed for shutdown. Sponsored by: NetApp, Inc. Sponsored by: Klara, Inc. X-NetApp-PR: #63 (cherry picked from commit 4d1597691916240b9023ee9f15e249503abf67fd)

etc/ttys: add xen console

2021-07-21T16:07:34Z

Xen VMs get a simulated serial device meant for use as a console. Often an xterm or other advanced terminal is used, so use xterm as the type. Depending on configuration, FreeBSD on Xen for amd64 may instead use an emulated serial port, but the virtual console may also be available. Submitted by: Elliott Mitchell Reviewed by: imp (slightly earlier version) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D29873 (cherry picked from commit 2b2c460d7bb856a069047583a55a60976cd375a4)

etc/ttys: merge ttys file down to single file

2021-07-21T16:05:01Z

The tty lists were already pretty similar and there hadn't been any real need for them to remain distinct for some time. As such, merge to a single file. The RISC-V console is preserved. For systems where it doesn't exist, its presence in /etc/ttys is harmless. The uncommented version of the ttyv8/XDM line from ttys.amd64 was the one chosen. Reviewed by: imp MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D30256 (cherry picked from commit c76616f496ee7e6b0a4ed9444fad56418f137a5a)

ttys: diff reduction

2021-07-21T16:04:43Z

Back in the day, we used to have a number of entries that were either 'on' or 'off' directly, rather than conditionally on 'onifexists' etc. Back then, we tried to line up the 'secure' columns by using the construct 'on secure' or 'off secure' (one space or two). Now that these have all moved to a conditional construct, remove the second space on the ttys that still have it. This reduces diffs between the different ttys and is no functional change. i386 and amd64 did this a long time ago, and those are the only ones that affected external users (who used to sed 's/on /off /' the entires as part of the automation). MFC After: 3 days Sponsored by: Netflix (cherry picked from commit 36be84b96699310e0020e194f81fe8e4a6c3f787)

init: use explicit_bzero() for clearing passwords

2021-04-01T17:29:06Z

This is a nop in practice, because it cannot be proven that this particular bzero() is not significant. Make it explicit anyways, rather than relying on an implementation detail of how the password is collected. Discussed with: Andrew Gierth (cherry picked from commit 852f70b24043885f0e438e8fecedd482a9a96d5e)

sbin/init: Reduce code duplication by using %m for error message

2020-12-26T01:49:33Z

instead of passing %s with return value from strerror(). MFC after: 2 weeks

Remove risky compatability with old kernels

2020-09-02T21:14:36Z

The badsys() handler for SIGSYS was added as a transtion aid for kernels lacking sysctl() in 1993. It is unsafe and unsound so remove it rather than running the risk of a privilege-dropping system call being silently omitted. This partially reverts SCCSID 6.12 (Berkeley) 03/03/93 "add code to change the system security level". Reviewed by: mckusick, imp, kevans Obtained from: CheriBSD MFC after: 1 week Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D26289

- Cleanups related to sparc64 removal.

2020-07-28T10:58:37Z

- Remove remains of sparc64 files. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D25831

init(8): set environment variables from the "daemon" class as well

2020-02-05T04:27:44Z

Specifically, when running /etc/rc. This allows one to specify via login.conf(5) an environment that should be used when running services to ease, e.g., setting up env vars for an HTTP proxy consistently across cron and services alike. Future changes will extend cron(8)/service(8) to use environment vars pecified in login.conf(5) as well to promote a more cohesive experience. This is a part of D21481. Submitted by: Andrew Gierth

Small tweak to the default behavior of shutdown -c

2020-01-17T01:20:48Z

'shutdown -c' is supposed to power cycle the system rather than doing a normal reboot. However, when that fails, it halts the system. This is not quite right since the intent isn't to halt the system but to restart. Make the default init behavior be to restart the system. The halt(8) interface can be used if you'd like to powercycle or halt. MFC After: 1 week Differential Revision: https://reviews.freebsd.org/D23129