6466 Commits

Author SHA1 Message Date
bschmidt
71ec4b8793 Fix the 'scan hang' issue.
When requesting a scan and one is already in progess, e.g. while in scan
state, we happily wait for a scan done notification. Though, this
notification might never be sent, e.g. if we are trying to find a network
to associate to and there is none. Instead of always waiting for a
notification just do so if a new scan has been started. For both cases the
scan cache is used to report available networks even if the content might
not be fresh.

MFC after:	1 month
2011-01-30 14:22:45 +00:00
bschmidt
e543f6eb01 When doing a scan while being associated it is possible that the scan
is deferred for the time it takes to flush the TX queue. This work being
done the scan then is continued, but only if it is marked to do so. As
the 'ifconfig scan' request is meant to be used after the interface is
brought up, request a background scan by default. This behaviour is
already documented in manual page.

This fixes on possible case where 'ifconfig scan' hangs infinitely.

MFC after:	1 month
2011-01-30 13:17:45 +00:00
pjd
621f7543a9 Drop privileges in worker processes.
Accepting connections and handshaking in secondary is still done before
dropping privileges. It should be implemented by only accepting connections in
privileged main process and passing connection descriptors to the worker, but
is not implemented yet.

MFC after:	1 week
2011-01-28 22:35:46 +00:00
pjd
1d4238ea6d Implement function that drops privileges by:
- chrooting to /var/empty (user hast home directory),
- setting groups to 'hast' (user hast primary group),
- setting real group id, effective group id and saved group id to 'hast',
- setting real user id, effective user id and saved user id to 'hast'.
At the end verify that those operations where successfull.

MFC after:	1 week
2011-01-28 22:33:47 +00:00
pjd
1c97582ecb Use newly added descriptors_assert() function to ensure only expected
descriptors are open.

MFC after:	1 week
2011-01-28 21:57:42 +00:00
pjd
ece9173999 Add function to assert that the only descriptors we have open are the ones
we expect to be open. Also assert that they point at expected type.

Because openlog(3) API is unable to tell us descriptor number it is using, we
have to close syslog socket, remember assert message in local buffer and if we
fail on assertion, reopen syslog socket and log the message.

MFC after:	1 week
2011-01-28 21:56:47 +00:00
pjd
16ad1c7c69 Close all unneeded descriptors after fork(2).
MFC after:	1 week
2011-01-28 21:52:37 +00:00
pjd
1c569578be Add comments to places where we treat errors as ciritical, but it is possible
to handle them more gracefully.

MFC after:	1 week
2011-01-28 21:51:40 +00:00
pjd
bc13ed0bfa Add function to close all unneeded descriptors after fork(2).
MFC after:	1 week
2011-01-28 21:48:15 +00:00
pjd
8de8b315a5 Initialize all global variables on pjdlog_init().
MFC after:	1 week
2011-01-28 21:36:01 +00:00
ae
aa1f236de4 Document the "bios-boot" partition type.
MFC after:	2 weeks
2011-01-28 11:56:14 +00:00
pjd
6c89103e58 Remember created control connection so on fork(2) we can close it in child.
Found with:	procstat(1)
MFC after:	1 week
2011-01-27 19:33:57 +00:00
pjd
bd3443f5fe Close the control socket before exiting, so it will be unlinked.
MFC after:	1 week
2011-01-27 19:31:35 +00:00
pjd
cf58ca408f Extend pjdlog_verify() to support the following additional macros:
PJDLOG_RVERIFY() - always check expression and on false log the given message
	and exit.
PJDLOG_RASSERT() - check expression when NDEBUG is not defined and on false log
	given message and exit.
PJDLOG_ABORT() - log the given message and exit.

MFC after:	1 week
2011-01-27 19:28:29 +00:00
pjd
79709f16df Add functions to initialize/finalize pjdlog. This allows to open/close log
file at will.

MFC after:	1 week
2011-01-27 19:24:07 +00:00
pjd
dd7f23334a Use my copyright for 2011 work.
MFC after:	1 week
2011-01-27 19:18:42 +00:00
pjd
3c75363563 Add LOG_NDELAY flag to openlog(3) - we want descriptor to be immediately open
so there are no surprises once we start chrooting or using capsicum.

MFC after:	1 week
2011-01-27 19:15:25 +00:00
pjd
04d7783c79 - Remove obvious NOTREACHED comment after abort() call.
- Remove redundant newline at the end of the file.

MFC after:	1 week
2011-01-27 19:12:44 +00:00
pjd
989e8232eb Remove __dead2 from pjdlog_verify() prototype, it does return sometimes.
MFC after:	1 week
2011-01-27 19:10:24 +00:00
dougb
2d4757f595 Clarify the availability of the noatime option on network file systems 2011-01-26 05:06:11 +00:00
cracauer
c067e14d2e Fix compilation with debug on.
Fix segfault when TargetAddress is missing or mis-spelled in config file.
2011-01-25 22:25:16 +00:00
sobomax
c193d3d06d Supply maximum value as an argument to the decimal() function
instead of supplying number of bits.

Submitted by:	bde
2011-01-25 04:35:07 +00:00
pjd
b9551ad06f Don't open configuration file from worker process. Handle SIGHUP in the
master process only and pass changes to the worker processes over control
socket. This removes access to global namespace in preparation for capsicum
sandboxing.

MFC after:	2 weeks
2011-01-24 15:04:15 +00:00
ivoras
1becfffbba Added a blurb about thin provisioning, fixed some formatting. 2011-01-24 14:24:10 +00:00
sobomax
7e82787e87 o Cylinder numbers are 10 bits in the MBR;
o Sector numbers are only 6 bits in the MBR;

o bde'cize name of the local variable.

Submitted by:	bde
2011-01-24 07:16:20 +00:00
mckusick
242bd272d9 The dump, fsck_ffs, fsdb, fsirand, newfs, makefs, and quot utilities
include sys/time.h instead of time.h. This include is incorrect as
per the manpages for the APIs and the POSIX definitions. This commit
replaces sys/time.h where necessary with time.h.

The commit also includes some minor style(9) header fixup in newfs.

This commit is part of a larger effort by Garrett Cooper started in
//depot/user/gcooper/posix-conformance-work/ -- to make FreeBSD more
POSIX compliant.

Submitted by:  Garrett Cooper   yanegomi at gmail dot com
2011-01-24 06:17:05 +00:00
jilles
fa1f8f7188 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
681c5b70ec 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
pjd
376c59ffe9 Add missing logs.
MFC after:	1 week
2011-01-22 23:30:01 +00:00
pjd
6cd4e3c7de Add nv_assert() which allows to assert that the given name exists.
MFC after:	1 week
2011-01-22 22:38:18 +00:00
pjd
12400e5c9f Use more consistent function name with the others (pjdlogv_prefix_set()
instead of pjdlog_prefix_setv()).

MFC after:	1 week
2011-01-22 22:35:08 +00:00
pjd
e3b328c442 Use int16 for error.
MFC after:	1 week
2011-01-22 22:33:27 +00:00
pjd
6dd16e11a4 - On primary worker reload, update hr_exec field.
- Update comment.

MFC after:	1 week
2011-01-22 22:31:55 +00:00
marcel
91f4463148 s/utime/modtime/g -- utime shadows utime(3).
Submitted by:	Garrett Cooper
2011-01-22 21:27:17 +00:00
sobomax
ecd4b97ba0 Warn user when value entered is greated than the amount supported
by the MBR for the given parameter and set that parameter to the
maximum value instead of just truncating the most significant part
silently.

Could happen for example if the capacity of the device is more
than 2TB, so that the number of sectors is greater than 2Mib.

MFC after:	1 month
2011-01-22 05:21:20 +00:00
mdf
6b5f615b7c Introduce signed and unsigned version of CTLTYPE_QUAD, renaming
existing uses.  Rename sysctl_handle_quad() to sysctl_handle_64().
2011-01-19 23:00:25 +00:00
mdf
6648b8cede sysctl(8) should use the CTLTYPE to determine the type of data when
reading.  (This was already done for writing to a sysctl).  This
requires all SYSCTL setups to specify a type.  Most of them are now
checked at compile-time.

Remove SYSCTL_*X* sysctl additions as the print being in hex should be
controlled by the -x flag to sysctl(8).

Succested by:	bde
2011-01-19 17:04:07 +00:00
mdf
5691ac3c34 Fix typo and bump date. 2011-01-17 23:43:03 +00:00
mdf
071d9f885a The kernel is not exporting any "T,dev_t" sysctl nodes anymore, so
remove the capability and mention from sysctl(8).
2011-01-17 23:36:53 +00:00
maxim
4dbaee02b6 o Somehow I revert Dd macro in the previous commit.
Re-revert it.
2011-01-13 06:20:44 +00:00
maxim
ae845ad3a8 o Start each sentence on a new line. No content changes.
Suggested by:	jhb
MFC after:	1 week
2011-01-13 06:18:00 +00:00
maxim
2c0b3b2277 o Typo fixes.
PR:		docs/153933
Submitted by:	jpaetzel@, Warren Block
MFC after:	1 week
2011-01-13 06:10:47 +00:00
brucec
63bb91c48d Fix formatting of cross-references. 2011-01-12 23:31:28 +00:00
brucec
e91078fdc9 Fix sorting of cross-references. 2011-01-12 20:27:14 +00:00
brucec
7ebb525365 Fix cross-reference to gvinum(8). 2011-01-12 19:20:30 +00:00
ae
efcb28e8ec Fix up the grammar.
PR:		docs/153933
MFC after:	3 days
2011-01-12 19:06:59 +00:00
pjd
18d56b43fe execve(2), not fork(2) resets signal handler to the default value (if it isn't
ignored). Correct comment talking about that.

Pointed out by:	kib
MFC after:	3 days
2011-01-12 16:16:54 +00:00
pjd
b905920a72 Add a note that when custom signal handler is installed for a signal,
signal action is restored to default in child after fork(2).
In this case there is no need to do anything with dummy SIGCHLD handler,
because after fork(2) it will be automatically reverted to SIG_IGN.

Obtained from:	Wheel Systems Sp. z o.o. http://www.wheelsystems.com
MFC after:	3 days
2011-01-12 14:38:17 +00:00
pjd
7a5b9c10d1 Install default signal handlers before masking signals we want to handle.
It is possible that the parent process ignores some of them and sigtimedwait()
will never see them, eventhough they are masked.

The most common situation for this to happen is boot process where init(8)
ignores SIGHUP before starting to execute /etc/rc. This in turn caused
hastd(8) to ignore SIGHUP.

Reported by:	trasz
Obtained from:	Wheel Systems Sp. z o.o. http://www.wheelsystems.com
MFC after:	3 days
2011-01-12 14:35:29 +00:00
ae
f8ef0d32cf Sector size can not be greater than MAXPHYS. Since GRAID3 calculates
sector size from user-specified block size, report to user about
big blocksize.

PR:		kern/147851
MFC after:	1 week
2011-01-12 13:55:01 +00:00