Commit Graph

184 Commits

Author SHA1 Message Date
Edward Tomasz Napierala
1cde387c83 Improve missing tty handling in init(8). This removes a check that did
nothing - it was checking for ENXIO, which, with devfs, is no longer
returned - and was badly placed anyway, and replaces it with similar
one that works, and is done just before starting getty, instead of being
done when rereading ttys(5).

From the practical point of view, this makes init(8) handle disappearing
terminals (eg /dev/ttyU*) gracefully, without unneccessary getty restarts
and resulting error messages.

Reviewed by:	imp@
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D14307
2018-02-27 10:54:15 +00:00
Pedro F. Giffuni
8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
Bryan Drewery
ea825d0274 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	Dell EMC Isilon
2017-10-31 00:07:04 +00:00
Warner Losh
35c1d16e3e Implement power cycle in init.
If SIGWINCH is received, then halt with power cycle.

Sponsored by: Netflix
2017-10-25 15:30:40 +00:00
Conrad Meyer
2c9a33f557 Correct sense of crypt(3) NULL checks in init(8) and lock(1)
In r231994, an attempt was made to fix crypt(3) failure returns (NULL).
However, instead of treating crypt(3) failure as authentication failure,
some of the changes treated crypt(3) failure as authentication success.
This is wrong.

r324225 fixed this for ppp, which also inspired this review.  The other
changes in the 231994 revision were audited for correctness and look ok.

Reviewed by:	jhb
Security:	yes
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D12571
2017-10-03 00:53:11 +00:00
Xin LI
95595f99b9 - Use strlcat() instead of strncat().
- Use asprintf() and handle allocation errors.

Reviewed by:	kevlo
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D11486
2017-07-07 02:48:55 +00:00
Enji Cooper
22289a8c3d sbin: normalize paths using SRCTOP-relative paths or :H when possible
This simplifies make logic/output

MFC after:	1 month
Sponsored by:	Dell EMC Isilon
2017-03-04 11:33:01 +00:00
Warner Losh
fbbd9655e5 Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
Konstantin Belousov
e10037df2c Add verbosity around failed reboot(2) call.
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2016-10-07 13:43:38 +00:00
Konstantin Belousov
8402d33aa3 When making a pause after detecting hard kill of the single-user
shell, ensure that we do sleep for at least the specified time, in
presence of signals.

Interrupted sleep(3) is followed by _exit(), which might cause 'Going
nowhere without my init' panic if init(8) exits before the reboot(2)
really started, or before SIGTSTP stopped init(8) (both events are
initiated by the parallel reboot(8) operation).

I do not see other calls to sleep(STALL_TIMEOUT) as having the same
disasterous consequences and kept them as is until the similar change
is proven required.

Reported and tested by:	Andy Farkas <chuzzwassa@gmail.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2016-10-07 13:41:28 +00:00
Sevan Janiyan
2580acbe95 init was there in UNIX from V1
http://minnie.tuhs.org/cgi-bin/utree.pl?file=V1/init.s

PR:		212503
Approved by:	bcr (mentor)
MFC after:	4 days
Differential Revision:	https://reviews.freebsd.org/D8105
2016-10-02 23:51:13 +00:00
Marcelo Araujo
2ef6931a15 For pointers use NULL instead of 0.
MFC after:	2 weeks.
2016-05-16 00:34:48 +00:00
Edward Tomasz Napierala
377b6d1e7c When rerooting, take the init(8) path from argv[0] instead of fetching
it via kern.proc.pathname sysctl(2).  In some cases - booting from NFS
or rerooting after replacing the init binary with a new one - the sysctl
would fail.  In other cases - after upgrading, which moves the old init
to /sbin/init.bak - it would return /sbin/init.bak, which is the actual
path of the running init, instead of /sbin/init.

Reported by:	Melissa Jenkins <melissa-freebsd at littlebluecar.co.uk>, jilles@
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-11 10:03:13 +00:00
Edward Tomasz Napierala
126ba2193b When rerooting, ignore ESRCH returned from kill(2). I couldn't reproduce
this by myself, but apparently it sometimes happens when rerooting from
single user mode.

Reported by:	jilles@
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-11 09:30:18 +00:00
Marcelo Araujo
14adaa14cb Use NULL instead of 0 for pointers.
dbopen(3) will returns a NULL on error.

MFC after:	2 weeks.
2016-04-19 01:25:35 +00:00
Glen Barber
406d87b1c3 Explicitly add more files to the 'runtime' package.
Sponsored by:	The FreeBSD Foundation
2016-02-09 20:19:31 +00:00
Edward Tomasz Napierala
b9124fc313 Fix resource leaks in error cases.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-11-11 23:00:57 +00:00
Edward Tomasz Napierala
3f5ac575ea Userspace part of reroot support. This makes it possible to change
the root filesystem without full reboot, using "reboot -r". This can
be used to to eg. boot from a temporary md_image preloaded by loader(8),
setup an iSCSI session, and continue booting from rootfs mounted over
iSCSI.

Reviewed by:	kib@, bapt@
MFC after:	1 month
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3693
2015-11-08 17:33:48 +00:00
Colin Percival
2eb0015ab7 Disable suspend when we're shutting down. This solves the "tell FreeBSD
to shut down; close laptop lid" scenario which otherwise tended to end
with a laptop overheating or the battery dying.

The implementation uses a new sysctl, kern.suspend_blocked; init(8) sets
this while rc.suspend runs, and the ACPI sleep code ignores requests while
the sysctl is set.

Discussed on:	freebsd-acpi (35 emails)
MFC after:	1 week
2015-10-01 10:52:26 +00:00
Edward Tomasz Napierala
ef159a1b45 Add missing SIGUSR1 description.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2015-07-24 18:14:57 +00:00
Simon J. Gerraty
2ef6d5a7b9 new depends 2015-06-16 23:37:19 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Simon J. Gerraty
98e0ffaefb Merge sync of head 2015-05-27 01:19:58 +00:00
Baptiste Daroussin
13eb765f2d Convert sbin/ to LIBADD
Reduce overlinking
2014-11-25 11:23:12 +00:00
Simon J. Gerraty
9268022b74 Merge from head@274682 2014-11-19 01:07:58 +00:00
Neel Natu
06224a9492 Remove LOG_ODELAY because it does nothing.
Reviewed by:	jilles
CR:		https://reviews.freebsd.org/D611
2014-08-17 19:06:26 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
3b8f084595 Merge head 2014-04-28 07:50:45 +00:00
Jilles Tjoelker
0b57dd6bde init: Remove code to track line numbers in /etc/ttys.
The tracking generated warnings when the line number of an existing tty in
/etc/ttys changed, which would corrupt utmp (as it was indexed by the line
number). With utmpx, the line number no longer matters, so the tracking is
no longer needed.
2014-02-08 13:51:15 +00:00
Simon J. Gerraty
d1d0158641 Merge from head 2013-09-05 20:18:59 +00:00
Jilles Tjoelker
595ab5638b init: Set kernel login class and CPU mask on new processes.
In particular, this makes the kernel login class on processes started from
/etc/rc "daemon" instead of "default".

Reviewed by:	trasz
2013-08-13 18:51:26 +00:00
Simon J. Gerraty
7cf3a1c6b2 Updated dependencies 2013-03-11 17:21:52 +00:00
Simon J. Gerraty
f5f7c05209 Updated dependencies 2013-02-16 01:23:54 +00:00
Marcel Moolenaar
7750ad47a9 Sync FreeBSD's bmake branch with Juniper's internal bmake branch.
Requested by: Simon Gerraty <sjg@juniper.net>
2012-08-22 19:25:57 +00:00
Jilles Tjoelker
3c52150e70 init: Remove unnecessary 2-second delay before calling reboot(2). 2012-05-25 19:45:01 +00:00
Ed Schouten
6ee5808be7 Properly clear the O_NONBLOCK flag after opening the TTY.
Though we should open the TTY with O_NONBLOCK to prevent rc(8) execution
from potentially stalling, we must not forget to clear the flag later
on, to prevent read(2) calls from failing later on.

This prevented the shell pathname prompt from working properly.

Reported by:	kib
2012-04-06 13:06:01 +00:00
Joel Dahl
c2965cd185 mdoc: terminate quoted strings.
Reviewed by:	brueffer
2012-03-26 15:18:14 +00:00
Ed Schouten
4c2c7b2c94 Make init(8) slightly more robust when /dev/console is missing.
If the environment doesn't offer a working /dev/console, the existing
version of init(8) will simply refuse running rc(8) scripts. This means
you'll only have a system running init(8) and nothing else.

Change the code to do the following:

- Open /dev/console like we used to do, but make it more robust to use
  O_NONBLOCK to prevent blocking on a carrier.
- If this fails, use /dev/null as stdin and /var/log/init.log as stdout
  and stderr.
- If even this fails, use /dev/null as stdin, stdout and stderr.

So why us this useful? Well, if you remove the `getpid() == 1' check in
main(), you can now use init(8) inside jails to properly execute rc(8).
It still requires some polishing, as existing tools assume init(8) has
PID 1.

Also it is now possible to use use init(8) on `headless' devices that
don't even have a serial boot console.
2012-03-14 16:22:09 +00:00
Ed Schouten
7a11d7d883 Fix whitespace.
MFC after:	1 week
2012-03-11 22:30:06 +00:00
Kevin Lo
29dcf726d2 Handle NULL return from crypt(3). Mostly from DragonFly 2012-02-22 06:27:20 +00:00
Ed Schouten
c21ae3a403 Move utmpx handling out of init(8).
This has the following advantages:

- During boot, the BOOT_TIME record is now written right after the file
  systems become writable, but before users are allowed to log in. This
  means that they can't cause `hidden logins' by logging in right before
  init(8) kicks in.

- The pututxline(3) function may potentially block on file locking,
  though this is very rare to occur. By placing it in an rc script, the
  user can still kill it with ^C if needed.

- Most importantly: jails don't use init(8). This means that a force
  reboot of a system running jails will leave stale entries in the
  accounting database of the jails individually.
2012-02-11 20:47:16 +00:00
Ed Schouten
1efe3c6b58 Add missing static keywords for global variables to tools in sbin/.
These tools declare global variables without using the static keyword,
even though their use is limited to a single C-file, or without placing
an extern declaration of them in the proper header file.
2011-11-04 13:36:02 +00:00
Eitan Adler
36daf0495a - change "is is" to "is" or "it is"
- change "the the" to "the"

Approved by:	lstewart
Approved by:	sahil (mentor)
MFC after:	3 days
2011-10-16 14:30:28 +00:00
Jilles Tjoelker
61bb1f4313 init(8): Document that login(1) is now responsible for recording logouts.
init(8) only uses utmpx for recording reboots and shutdowns.
2011-01-23 14:54:45 +00:00
Jilles Tjoelker
acf0ab0669 init: Only run /etc/rc.shutdown if /etc/rc was run.
It does not make sense to shut down daemons that were not started. In
particular, this fixes loss of mixer settings when shutting down using
shutdown(8), init(8) or ctrl+alt+del from single-user mode.

If /etc/rc reboots, /etc/rc.shutdown is not run.

Also fix segfaults and other erratic behaviour if init receives SIGHUP or
SIGTSTP while in single-user mode.

This commit does not attempt to fix any badness with signal handlers
(assumption that pointers can be read and written atomically, EINTR race
condition). I believe it does not make this badness any worse.

Silence on:	-arch@
2011-01-23 14:22:26 +00:00
Ed Schouten
a21dd5e9dd Remove stale inclusion of <ulog.h>.
This tool doesn't require libulog anymore.
2010-01-27 20:32:58 +00:00
Ed Schouten
0806dd9238 Remove stale references to utmp(5) and its corresponding filenames.
I removed utmp and its manpage, but not other manpages referring to it.
2010-01-21 17:25:12 +00:00
Ed Schouten
bb6c761206 Migrate init(8) towards utmpx.
According to a comment, we cannot safely remove utmpx entries here
anymore. This is because the libc routines may block on file locking. In
an ideal world login(1) should just remove the entries, which is why I'm
disabling this code for now. If it turns out we get lots of stale
entries here, we should figure out a way to deal with that.
2010-01-13 17:58:49 +00:00
Ed Schouten
14c69f2136 Let init(8) and reboot(8) use utmpx to log wtmp entries.
logwtmp() gets called with the raw strings that are written to disk. For
regular user entries, this isn't too bad, but when booting/shutting
down, the contents get rather cryptic.

Just call the standardized pututxline().
2009-12-05 20:26:55 +00:00