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Commit Graph

133 Commits

Author SHA1 Message Date
Ed Schouten
43273e33a3 Remove redundant code from runshutdown() now tcsetsid(3) works reliably.
We can now just call setctty() without any problems. This means the
shell running the shutdown script is now the session leader, just like
on startup.
2009-06-15 19:24:47 +00:00
Ed Schouten
4ae35b5d2a Fix the staircase issue properly this time.
Even though I thought this bug was somewhere in the TTY layer, it turns
out init(8) doesn't make sure /dev/console is opened initially properly.
I've added revoke() to two pieces of code:

- death(): Apart from killing the gettys on shutdown, this doesn't
  guarantee the TTY to be closed immediately.
- runshutdown(): Just like setctty(), we should revoke /dev/console.
  Applications like syslogd may have file descriptors to the console.
2009-06-14 17:00:35 +00:00
Xin LI
45cfb1dc53 Static-ify procedures in init(8). 2008-09-27 00:09:10 +00:00
David E. O'Brien
bb2dbe1b93 Addition style(9) change. 2007-11-20 21:25:58 +00:00
David E. O'Brien
091abe405c style(9) 2007-11-20 19:50:45 +00:00
Remko Lodder
fcd7ed0e3a I understood the MLINK part incorrectly, it should be the other way around
also remove the init mlink to securelevel.

Discussed with and sharing pointyhat with:	brueffer
2007-06-01 21:48:07 +00:00
Warner Losh
1a7bec91fb Patches to allow one to allow one to specify a directory to chroot to.
This includes support for running a script to setup that directory.
The kenv variables init_chroot and init_script control this behavior,
and are documented in loader(8) that's about to be committed (along
with the other variables like init_path...).

Submitted by: Oliver Fromme
Reviewed by: myself, jhb (earlier versions)
2007-02-04 06:33:13 +00:00
Ralf S. Engelschall
7090a0c6be Fix typo: effected -> affected
Submitted by: Gordon Stratton <tsr2600 (at) gmail (dot) com>
2007-01-02 09:12:37 +00:00
Konstantin Belousov
5010c3b657 Reparent the process that executes the window= command from the ttys
to the init. This prevents zombies from being accumulated.

PR:		bin/64198
Tested by:	Eugene Grosbein <eugen at www svzserv kemerovo su>
Approved by:	kan (mentor)
MFC after:	1 month
2006-06-08 14:04:36 +00:00
Luigi Rizzo
cea897b2bf use standard mode instead of 500 for /sbin/init.
As discussed on -current, there is no sensitive info in /sbin/init
to prevent reading it from non-privileged users, nor any reason to
remove the 'x' bit as the first thing the program does is check the
uid and exit if it is not run by root.

Instead (and this is why i make the change), mode 500 prevents
operation when exporting the partition without -maproot=0 to diskless
clients.

All previuos releases are affected by the same problem, so a merge
to RELENG_6 at least would be appropriate (after proper re@ approval
of course).
2006-02-28 08:02:28 +00:00
Ruslan Ermilov
4e9e907d63 -mdoc sweep. 2005-11-18 10:36:29 +00:00
Ralf S. Engelschall
724447ac41 Fix system shutdown timeout handling by again supporting longer running
shutdown procedures (which have a duration of more than 120 seconds).

We have two user-space affecting shutdown timeouts: a "soft" one in
/etc/rc.shutdown and a "hard" one in init(8). The first one can be
configured via /etc/rc.conf variable "rcshutdown_timeout" and defaults
to 30 seconds. The second one was originally (in 1998) intended to be
configured via sysctl(8) variable "kern.shutdown_timeout" and defaults
to 120 seconds.

Unfortunately, the "kern.shutdown_timeout" was declared "unused" in 1999
(as it obviously is actually not used within the kernel itself) and
hence was intentionally but misleadingly removed in revision 1.107 from
init_main.c. Kernel sysctl(8) variables are certainly a wrong way to
control user-space processes in general, but in this particular case the
sysctl(8) variable should have remained as it supports init(8), which
isn't passed command line flags (which in turn could have been set via
/etc/rc.conf), etc.

As there is already a similar "kern.init_path" sysctl(8) variable which
directly affects init(8), resurrect the init(8) shutdown timeout under
sysctl(8) variable "kern.init_shutdown_timeout". But this time document
it as being intentionally unused within the kernel and used by init(8).
Also document it in the manpages init(8) and rc.conf(5).

Reviewed by: phk
MFC after: 2 weeks
2005-09-15 13:16:07 +00:00
Gary W. Swearingen
e17c0e3256 Moved descriptions of securelevels from init(7) to security(7).
Files used both "securelevel" and either "secure level" or
"security level"; all are now "security level".

PR:             docs/84266
Submitted by:   garys
Approved by:    keramida
MFC after:      3 days
2005-09-03 17:16:00 +00:00
Ruslan Ermilov
6087df9e8b Sort sections. 2005-01-18 10:09:38 +00:00
Xin LI
ab03e6d597 Make WARNS=6 happy with our init(8):
- Use more ``const''s where suitable.
	- Define strk() as a static function in global scope.
	  This avoids the "nested extern declaration" warnings.
	- Use static initialization of strings, rather than
	  referring string constants through char *.
	- Bump WARNS from 0 to 6.
2005-01-11 14:34:29 +00:00
Ruslan Ermilov
83c7ade90a NOSHARED -> NO_SHARED 2004-12-21 09:59:45 +00:00
Ruslan Ermilov
dee651eb15 Introduce the PRECIOUSPROG knob in bsd.prog.mk, similar
to PRECIOUSLIB from bsd.lib.mk.  The side effect of this
is making installing the world under jail(8) possible by
using another knob, NOFSCHG.

Reviewed by:	oliver
2004-11-03 18:01:21 +00:00
Warner Losh
89e3b380f9 Turns out that revision 1.52 was a bad idea. It broke the long
standing ability to list a non-existant device in /etc/ttys to keep it
from dying.  This is a documented feature of init(8):
     The init utility can also be used to keep arbitrary daemons running,
     automatically restarting them if they die.  In this case, the first field
     in the ttys(5) file must not reference the path to a configured device
     node and will be passed to the daemon as the final argument on its com-
     mand line.  This is similar to the facility offered in the AT&T System V
     UNIX /etc/inittab.

So rather than fix the man page to 'break' this feature, back out the change.

At the time this change was made, people felt that the spamage from
getty was annoying on headless consoles.  Andrew Gallatin noted:
> Most of my machines are headless without video cards and use a serial
> console.  With devfs this means that /dev/ttyv[1-N] do not exist and
> getty bitches like this:
>
> Sep 26 11:00:11 monet getty[543]: open /dev/ttyv1: No such file or directory

and we went off and applied this hack rather than fixing getty to
sleep forever when it gets an unknown device, as was Andrew's other
suggestion.  Since it breaks things, I'm off to do that instead.
2004-09-28 04:22:55 +00:00
Giorgos Keramidas
328dbe4a94 Add references to pf(4) and pfctl(8) at the description of
securelevel = 3.

PR:		docs/69417
Submitted by:	Janos Mohacsi (mohacsi(at)niif(dot)hu)
2004-07-22 10:38:13 +00:00
Ruslan Ermilov
9806e23132 Mechanically kill hard sentence breaks. 2004-07-02 21:45:06 +00:00
Ruslan Ermilov
d04b5dfe6c Assorted markup, grammar, and spelling fixes. 2004-05-17 08:35:43 +00:00
Mark Murray
4c723140a4 Remove advertising clause from University of California Regent's license,
per letter dated July 22, 1999.

Approved by: core, imp
2004-04-09 19:58:40 +00:00
Bruce Evans
30e8350c60 Fixed misspellings of 0 as NULL. 2004-03-11 10:01:12 +00:00
Johan Karlsson
604d24db95 style.Makefile(5):
Use WARNS?= instead of WARNS=.
2004-02-23 20:25:27 +00:00
Maxime Henrion
b4089f6417 Mention that securelevel 1 also blocks access to /dev/io if it
exists (not all platforms have it).
2004-02-20 21:38:23 +00:00
Warner Losh
35fc132143 Fix the case where one goes from zero to more than zero items enabled
in /etc/ttys.  Before this fix, once the count of active services
reaches 0, one could never restart any more without a reboot.

Steve Passe did the leg work on this patch.  After he found the fix,
we discovered that an identical fix had been made to NetBSD.

Approved by: re@ <scottl>
Approval tool: peril sensitive sunglasses
2003-12-05 04:28:03 +00:00
Gordon Tetlow
dc59303d62 Make init statically linked by default. It's not worth the pain of having
a dynamically linked init as recently seen by ia64 woes.

Approved by:	re (jhb)
2003-11-19 19:57:20 +00:00
Ken Smith
280b191c3a - Add some information about how init, securelevel, and jails
interact with each other.
	- Minor markup fix (.Dq -> .Va for a variable)

Reviewed by:	rwatson
Approved by:	blackend (mentor)
2003-11-11 18:37:50 +00:00
Philippe Charnier
9680d7b695 Add section number to .Xr 2003-06-08 12:51:28 +00:00
Giorgos Keramidas
09003f98d8 There are 5 securelevels, not 4.
PR:		docs/50049
Submitted by:	Colin Percival <cperciva@sfu.ca>
2003-03-26 01:30:34 +00:00
Ruslan Ermilov
522ccf3f35 mdoc(7) police: markup laundry. 2003-02-23 01:47:49 +00:00
Brian Feldman
f45a1cab59 Back out the previous commit, since there could be dire consequences if
/etc/rc were accidentally executed (as requested by other committeers).
2002-12-17 21:23:36 +00:00
Brian Feldman
1ad1ab1434 /home/green/tmp/cvsSFosXg 2002-12-17 20:39:38 +00:00
John Baldwin
60d6cc883c Give up on a tty if opening it's special file returns ENOENT like we do for
ENXIO.

Glanced at by:	imp, gallatin
2002-09-27 16:02:28 +00:00
Tom Rhodes
ce66ddb763 s/filesystem/file system/g as discussed on -developers 2002-08-21 18:11:48 +00:00
Ruslan Ermilov
e091d0c2ac can not -> cannot. 2002-08-13 14:10:36 +00:00
Maxime Henrion
1f083b1e3d I should have committed this ages ago...
Convert init(8) to use nmount() instead of mount() when
it has to mount devfs.  This doesn't happen normally,
since the kernel is supposed to mount devfs itself.
2002-08-03 16:21:33 +00:00
Philippe Charnier
e1205e80e5 The .Nm utility 2002-07-06 19:34:18 +00:00
Warner Losh
73bf18edb8 o remove __P
o Use ansi function definitions
o unifdef -D__STDC__
2002-03-20 22:53:13 +00:00
David E. O'Brien
3d438ad61f Remove 'register' keyword.
It does not help modern compilers, and some may take some hit from it.
(I also found several functions that listed *every* of its 10 local vars with
 "register" -- just how many free registers do people think machines have?)
2002-03-20 17:55:10 +00:00
David E. O'Brien
2d68bf45bf Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by:	mike
2001-12-04 02:19:58 +00:00
Dag-Erling Smørgrav
6e8ff8b760 Allow reboot during runcom.
PR:		bin/28116
Submitted by:	Valentin Nechayev <netch@netch.kiev.ua>
MFC in:		1 week
2001-10-15 20:34:43 +00:00
Kris Kennaway
5979df34a6 Silence non-constant format string warnings by marking functions
as __printflike()/__printf0like(), adding const, or adding missing "%s"
format strings, as appropriate.

MFC after:	2 weeks
2001-08-19 08:19:37 +00:00
Ruslan Ermilov
57e4378bf6 mdoc(7) police: protect trailing full stops of abbreviations
with a trailing zero-width space: `e.g.\&'.
2001-08-10 13:45:36 +00:00
Ruslan Ermilov
c4d9468ea0 mdoc(7) police:
Avoid using parenthesis enclosure macros (.Pq and .Po/.Pc) with plain text.
Not only this slows down the mdoc(7) processing significantly, but it also
has an undesired (in this case) effect of disabling hyphenation within the
entire enclosed block.
2001-08-07 15:48:51 +00:00
Sheldon Hearn
e1b4d8d074 Use STD{ERR,IN,OUT}_FILENO instead of their numeric values. The
definitions are more readable, and it's possible that they're
more portable to pathalogical platforms.

Submitted by:   David Hill <david@phobia.ms>
2001-07-26 11:02:39 +00:00
Dima Dorfman
7ebcc426ef Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
Ruslan Ermilov
9fe48c6e8d mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 11:04:34 +00:00
Mike Heffner
2d887af57e Fix typo which could lead to memory leak.
PR:		misc/28283
MFC after:	2 weeks
2001-06-20 01:56:09 +00:00
Ruslan Ermilov
4cf39050cc Use new backup feature of install(1). 2001-05-28 16:58:35 +00:00