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Add jail_<jname>_exec_afterstart<N> rc.conf variable, where <N> is

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1,2 and so on.
It specifies the command to be run as Nth after jail startup.

sh(1)-fu by: Dario Freni
PR: 	conf/97697
MFC after: 2 weeks
Reviewed by: ru@ (man page)
This commit is contained in:
Matteo Riondato 2006-05-30 16:20:48 +00:00
parent 200ea54812
commit ce5c66f0b2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=159072
3 changed files with 55 additions and 2 deletions
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3
etc/defaults/rc.conf
View File

@ -546,6 +546,9 @@ jail_sysvipc_allow="NO" # Allow SystemV IPC use from within a jail
#jail_example_ip="192.168.0.10" # Jail's IP number
#jail_example_interface="" # Interface to create the IP alias on
#jail_example_exec_start="/bin/sh /etc/rc" # command to execute in jail for starting
#jail_example_exec_afterstart0="/bin/sh command" # command to execute after the one for
# starting the jail. More than one can be
# specified using a trailing number
#jail_example_exec_stop="/bin/sh /etc/rc.shutdown" # command to execute in jail for stopping
#jail_example_devfs_enable="NO" # mount devfs in the jail
#jail_example_fdescfs_enable="NO" # mount fdescfs in the jail

36
etc/rc.d/jail
View File

@ -36,6 +36,14 @@ init_variables()
eval _interface=\"\${jail_${_j}_interface:-${jail_interface}}\"
eval _exec=\"\$jail_${_j}_exec\"
eval _exec_start=\"\${jail_${_j}_exec_start:-${jail_exec_start}}\"
i=1
while [ true ]; do
eval _exec_afterstart${i}=\"\${jail_${_j}_exec_afterstart${i}:-\${jail_exec_afterstart${i}}}\"
[ -z "$(eval echo \"\$_exec_afterstart${i}\")" ] && break
i=$((i + 1))
done
eval _exec_stop=\"\${jail_${_j}_exec_stop:-${jail_exec_stop}}\"
if [ -n "${_exec}" ]; then
# simple/backward-compatible execution
@ -84,6 +92,19 @@ init_variables()
debug "$_j ruleset: $_ruleset"
debug "$_j fstab: $_fstab"
debug "$_j exec start: $_exec_start"
i=1
while [ true ]; do
eval out=\"\${_exec_afterstart${i}:-''}\"
if [ -z "$out" ]; then
break;
fi
debug "$_j exec after start #${i}: ${out}"
i=$((i + 1))
done
debug "$_j exec stop: $_exec_stop"
debug "$_j flags: $_flags"
@ -221,9 +242,22 @@ jail_start()
_tmp_jail=${_tmp_dir}/jail.$$
eval jail ${_flags} -i ${_rootdir} ${_hostname} \
${_ip} ${_exec_start} > ${_tmp_jail} 2>&1
if [ "$?" -eq 0 ] ; then
echo -n " $_hostname"
_jail_id=$(head -1 ${_tmp_jail})
i=1
while [ true ]; do
eval out=\"\${_exec_afterstart${i}:-''}\"
if [ -z "$out" ]; then
break;
fi
jexec "${_jail_id}" ${out}
i=$((i + 1))
done
echo -n " $_hostname"
tail +2 ${_tmp_jail} >${_rootdir}/var/log/console.log
echo ${_jail_id} > /var/run/jail_${_jail}.id
else

18
share/man/man5/rc.conf.5
View File

@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd May 18, 2006
.Dd May 29, 2006
.Dt RC.CONF 5
.Os
.Sh NAME
@ -3085,6 +3085,13 @@ When set, use as default value for
.Va jail_ Ns Ao Ar jname Ac Ns Va _exec_start
for every jail in
.Va jail_list .
.It Va jail_exec_afterstart Ns Aq Ar N
.Pq Vt str
Unset by default.
When set, use as default value for
.Va jail_ Ns Ao Ar jname Ac Ns Va _exec_afterstart Ns Aq Ar N
for every jail in
.Va jail_list .
.It Va jail_exec_stop
Unset by default.
When set, use as default value for
@ -3176,6 +3183,15 @@ Set to
.Dq Li /bin/sh /etc/rc
by default.
This is the command executed at jail startup.
.It Va jail_ Ns Ao Ar jname Ac Ns Va _exec_afterstart Ns Aq Ar N
.Pq Vt str
Unset by default.
This is the command run as
.Ar N Ns
th command
after jail startup, where
.Ar N
is 1, 2, and so on.
.It Va jail_ Ns Ao Ar jname Ac Ns Va _exec_stop
.Pq Vt str
Set to