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freebsd-dev/etc/rc.d/cleartmp

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Import the NetBSD 1.5 RC system. Note that `rc' and `rc.shutdown' could not be imported because we already have files with those names.
2001-06-16 07:16:14 +00:00
#!/bin/sh
#
Merge in all the changes that Mike Makonnen has been maintaining for a while. This is only the script pieces, the glue for the build comes next. Submitted by: Mike Makonnen <makonnen@pacbell.net> Reviewed by: silence on -current and -hackers Prodded by: rwatson
2002-06-13 22:14:37 +00:00
# $FreeBSD$
Import the NetBSD 1.5 RC system. Note that `rc' and `rc.shutdown' could not be imported because we already have files with those names.
2001-06-16 07:16:14 +00:00
#
# PROVIDE: cleartmp
Overhaul the /etc/rc.d/diskless script by splitting it out into hostname, resolve, tmp, and var scripts. The latter three are new and were repo copied. These scripts no longer depend on being booted with and NFS root instead attempt to automaticly create mfs /tmp and /var volumes if the they are not writable. This behavior can be overridden in /etc/rc.conf. Reviewed by: luigi, pjd
2004-03-23 23:22:35 +00:00
# REQUIRE: mountcritremote tmp
Merge in all the changes that Mike Makonnen has been maintaining for a while. This is only the script pieces, the glue for the build comes next. Submitted by: Mike Makonnen <makonnen@pacbell.net> Reviewed by: silence on -current and -hackers Prodded by: rwatson
2002-06-13 22:14:37 +00:00
# BEFORE: DAEMON
Import the NetBSD 1.5 RC system. Note that `rc' and `rc.shutdown' could not be imported because we already have files with those names.
2001-06-16 07:16:14 +00:00
. /etc/rc.subr
name="cleartmp"
Improve cleartmp in a number of aspects: + Use rc.subr(8) features properly. + Do the whole job of obliterating /tmp contents in find(1). + Leave lost+found and quota.{user,group} in /tmp only if root-owned. + Make the overall structure clearer by first removing the X dirs (perhaps along with the rest of /tmp) and then re-creating them. + Use "find -exec rm -rf {} +" for efficiency: each rm instance gets a chance to kill as much files in /tmp as ARG_MAX permits. PR: bin/104044 Submitted by: Andrey Simonenko <see PR for email> Hacked by: yar MFC after: 1 month
2006-10-16 13:01:45 +00:00
# Disguise rcvar for the start method to run irrespective of its setting.
Prepare for the removal of set_rcvar() by changing the rcvar= assignments to the literal values it would have returned. The concept of set_rcvar() was nice in theory, but the forks it creates are a drag on the startup process, which is especially noticeable on slower systems, such as embedded ones. During the discussion on freebsd-rc@ a preference was expressed for using ${name}_enable instead of the literal values. However the code portability concept doesn't really apply since there are so many other places where the literal name has to be searched for and replaced. Also, using the literal value is also a tiny bit faster than dereferencing the variables, and every little bit helps.
2012-01-14 02:18:41 +00:00
rcvar1="clear_tmp_enable"
Clear up problems with /etc/rc.d/{abi|cleanvar|cleartmp} brought to light by the PR. Specifically, convert these three scripts into good rc.d citizens, making sure that their functionality is preserved, but the rc.d framework rules are not broken. Add support for cleanvar as a regular rc.d script in the default rc.conf, and document this in the man page. Add a descriptive comment to rc.conf that regarding the three emulation/compatibility services provided by abi so users will not be confused by these services not having their own startup scripts. PR: conf/84574 Submitted by: Alexander Botero-Lowry
2005-12-19 10:57:00 +00:00
start_cmd="${name}_start"
Improve cleartmp in a number of aspects: + Use rc.subr(8) features properly. + Do the whole job of obliterating /tmp contents in find(1). + Leave lost+found and quota.{user,group} in /tmp only if root-owned. + Make the overall structure clearer by first removing the X dirs (perhaps along with the rest of /tmp) and then re-creating them. + Use "find -exec rm -rf {} +" for efficiency: each rm instance gets a chance to kill as much files in /tmp as ARG_MAX permits. PR: bin/104044 Submitted by: Andrey Simonenko <see PR for email> Hacked by: yar MFC after: 1 month
2006-10-16 13:01:45 +00:00
stop_cmd=":"
Import the NetBSD 1.5 RC system. Note that `rc' and `rc.shutdown' could not be imported because we already have files with those names.
2001-06-16 07:16:14 +00:00
Brooks pointed out a potential problem with disabling the X cleaning by default, so add a new knob that is on by default, and check that knob in start_precmd so that it can run even if cleaning /tmp is not enabled. This has the advantage of not violating POLA, while still allowing the user to disable this behavior if they wish (for example on a server that will never run X).
2005-12-20 20:36:48 +00:00
cleartmp_start()
{
Improve cleartmp in a number of aspects: + Use rc.subr(8) features properly. + Do the whole job of obliterating /tmp contents in find(1). + Leave lost+found and quota.{user,group} in /tmp only if root-owned. + Make the overall structure clearer by first removing the X dirs (perhaps along with the rest of /tmp) and then re-creating them. + Use "find -exec rm -rf {} +" for efficiency: each rm instance gets a chance to kill as much files in /tmp as ARG_MAX permits. PR: bin/104044 Submitted by: Andrey Simonenko <see PR for email> Hacked by: yar MFC after: 1 month
2006-10-16 13:01:45 +00:00
# Make /tmp location variable for easier debugging.
local tmp="/tmp"
# X related directories to create in /tmp.
local x11_socket_dirs="${tmp}/.X11-unix ${tmp}/.XIM-unix \
${tmp}/.ICE-unix ${tmp}/.font-unix"
if checkyesno ${rcvar1}; then
In regards to the "Starting foo:" type messages at boot time, create and employ a more generic solution, and use it in the individual rc.d scripts that also have an $rc_quiet test: 1. Add check_startmsgs() to rc.subr. 2. In the rc.d scripts that use rc_quiet (and rc.subr) substitute variations of [ -z "$rc_quiet" ] with check_startmsgs 3. In savecore add a trailing '.' to the end of the message to make it more consistent with other scripts. 4. In newsyslog remove a : before the terminal '.' since we do not expect there to be anything printed out in between to make it more consistent. 5. In the following scripts change "quotes" to 'quotes' where no variables exist in the message: savecore pf newsyslog 6. In the following scripts substitute if/then/fi for the simpler (and more consistent) check_startmsgs &&: faith stf 7. In the following scripts separate the "Starting foo:" from the terminal '.' to make them more consistent: moused hostname pf 8. In nfsclient move the message to its own line to avoid a style bug 9. In pf rc_quiet does not apply to the _stop method, so remove the test there. 10. In motd add 'quotes' around the terminal '.' for consistency
2009-10-10 22:17:03 +00:00
check_startmsgs && echo "Clearing ${tmp}."
Improve cleartmp in a number of aspects: + Use rc.subr(8) features properly. + Do the whole job of obliterating /tmp contents in find(1). + Leave lost+found and quota.{user,group} in /tmp only if root-owned. + Make the overall structure clearer by first removing the X dirs (perhaps along with the rest of /tmp) and then re-creating them. + Use "find -exec rm -rf {} +" for efficiency: each rm instance gets a chance to kill as much files in /tmp as ARG_MAX permits. PR: bin/104044 Submitted by: Andrey Simonenko <see PR for email> Hacked by: yar MFC after: 1 month
2006-10-16 13:01:45 +00:00
# This is not needed for mfs, but doesn't hurt anything.
# Things to note:
# + The dot in ${tmp}/. is important.
# + Put -prune before -exec so find never descends
# into a directory that was already passed to rm -rf.
# + "--" in rm arguments isn't strictly necessary, but
# it can prevent foot-shooting in future.
# + /tmp/lost+found is preserved, but its contents are removed.
# + lost+found and quota.* in subdirectories are removed.
Avoid to try to remove suj journal file (.sujournal) and conventional snapshot directory (.snap) from cleartmp rc.d script.
2010-09-05 05:44:40 +00:00
# + .sujournal and .snap are preserved.
Improve cleartmp in a number of aspects: + Use rc.subr(8) features properly. + Do the whole job of obliterating /tmp contents in find(1). + Leave lost+found and quota.{user,group} in /tmp only if root-owned. + Make the overall structure clearer by first removing the X dirs (perhaps along with the rest of /tmp) and then re-creating them. + Use "find -exec rm -rf {} +" for efficiency: each rm instance gets a chance to kill as much files in /tmp as ARG_MAX permits. PR: bin/104044 Submitted by: Andrey Simonenko <see PR for email> Hacked by: yar MFC after: 1 month
2006-10-16 13:01:45 +00:00
find -x ${tmp}/. ! -name . \
Avoid to try to remove suj journal file (.sujournal) and conventional snapshot directory (.snap) from cleartmp rc.d script.
2010-09-05 05:44:40 +00:00
! \( -name .sujournal -type f -user root \) \
! \( -name .snap -type d -user root \) \
Improve cleartmp in a number of aspects: + Use rc.subr(8) features properly. + Do the whole job of obliterating /tmp contents in find(1). + Leave lost+found and quota.{user,group} in /tmp only if root-owned. + Make the overall structure clearer by first removing the X dirs (perhaps along with the rest of /tmp) and then re-creating them. + Use "find -exec rm -rf {} +" for efficiency: each rm instance gets a chance to kill as much files in /tmp as ARG_MAX permits. PR: bin/104044 Submitted by: Andrey Simonenko <see PR for email> Hacked by: yar MFC after: 1 month
2006-10-16 13:01:45 +00:00
! \( -name lost+found -type d -user root \) \
! \( \( -name quota.user -or -name quota.group \) \
-type f -user root \) \
-prune -exec rm -rf -- {} +
elif checkyesno clear_tmp_X; then
# Remove X lock files, since they will prevent you from
# restarting X. Remove other X related directories.
In regards to the "Starting foo:" type messages at boot time, create and employ a more generic solution, and use it in the individual rc.d scripts that also have an $rc_quiet test: 1. Add check_startmsgs() to rc.subr. 2. In the rc.d scripts that use rc_quiet (and rc.subr) substitute variations of [ -z "$rc_quiet" ] with check_startmsgs 3. In savecore add a trailing '.' to the end of the message to make it more consistent with other scripts. 4. In newsyslog remove a : before the terminal '.' since we do not expect there to be anything printed out in between to make it more consistent. 5. In the following scripts change "quotes" to 'quotes' where no variables exist in the message: savecore pf newsyslog 6. In the following scripts substitute if/then/fi for the simpler (and more consistent) check_startmsgs &&: faith stf 7. In the following scripts separate the "Starting foo:" from the terminal '.' to make them more consistent: moused hostname pf 8. In nfsclient move the message to its own line to avoid a style bug 9. In pf rc_quiet does not apply to the _stop method, so remove the test there. 10. In motd add 'quotes' around the terminal '.' for consistency
2009-10-10 22:17:03 +00:00
check_startmsgs && echo "Clearing ${tmp} (X related)."
Improve cleartmp in a number of aspects: + Use rc.subr(8) features properly. + Do the whole job of obliterating /tmp contents in find(1). + Leave lost+found and quota.{user,group} in /tmp only if root-owned. + Make the overall structure clearer by first removing the X dirs (perhaps along with the rest of /tmp) and then re-creating them. + Use "find -exec rm -rf {} +" for efficiency: each rm instance gets a chance to kill as much files in /tmp as ARG_MAX permits. PR: bin/104044 Submitted by: Andrey Simonenko <see PR for email> Hacked by: yar MFC after: 1 month
2006-10-16 13:01:45 +00:00
rm -rf ${tmp}/.X[0-9]-lock ${x11_socket_dirs}
fi
if checkyesno clear_tmp_X; then
# Create X related directories with proper permissions.
mkdir -m 1777 ${x11_socket_dirs}
fi
Brooks pointed out a potential problem with disabling the X cleaning by default, so add a new knob that is on by default, and check that knob in start_precmd so that it can run even if cleaning /tmp is not enabled. This has the advantage of not violating POLA, while still allowing the user to disable this behavior if they wish (for example on a server that will never run X).
2005-12-20 20:36:48 +00:00
}
Import the NetBSD 1.5 RC system. Note that `rc' and `rc.shutdown' could not be imported because we already have files with those names.
2001-06-16 07:16:14 +00:00
load_rc_config $name
run_rc_command "$1"
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