From baec435b801660b649255dac22865d46a42ea80c Mon Sep 17 00:00:00 2001
From: erdgeist <erdgeist@erdgeist.org>
Date: Sat, 19 Nov 2005 04:27:56 +0000
Subject: Checks for already listening services added
---
ezjail-admin | 28 +++++++++++++++++++++++-----
1 file changed, 23 insertions(+), 5 deletions(-)
diff --git a/ezjail-admin b/ezjail-admin
index 48dfdc8..b73ebc6 100755
--- a/ezjail-admin
+++ b/ezjail-admin
@@ -55,10 +55,6 @@ create)
# we need at least a name and an ip for new jail
[ "$newjail_name" -a "$newjail_ip" -a $# = 2 ] || exerr 'Usage: ezjail create [-f flavour] [-r jailroot] [-x] jailname jailip'
- # check, whether IP is configured on a local interface, warn if it isnt
- ping -c 1 -m 1 -t 1 -q $newjail_ip > /dev/null
- [ $? = 0 ] || echo "Warning: IP $newjail_ip not configured on a local interface"
-
# check, whether ezjail-update has been called. existence of
# ezjail_jailbase is our indicator
[ -d $ezjail_jailbase ] || exerr "Error: base jail does not exist. Please run 'ezjail-admin update' first"
@@ -128,11 +124,33 @@ create)
echo export jail_${newjail_nname}_procfs_enable=\"${ezjail_procfs_enable}\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_fdescfs_enable=\"${ezjail_fdescfs_enable}\" >> ${ezjail_jailcfgs}/${newjail_nname}
+ # check, whether IP is configured on a local interface, warn if it isnt
+ ping -c 1 -m 1 -t 1 -q $newjail_ip > /dev/null
+ [ $? = 0 ] || echo "Warning: IP $newjail_ip not configured on a local interface"
+
+ # check, whether some host system services do listen on the Jails IP
+ TIFS=$IFS; IFS=_
+ newjail_listener=`sockstat -4 -l | grep $newjail_ip:[[:digit:]]`
+ if [ $? = 0 ]; then
+ echo "Warning: Some services already seem to be listening on IP $newjail_ip"
+ echo " This may cause some confusion, here they are:"
+ echo $newjail_listener
+ fi
+
+ newjail_listener=`sockstat -4 -l | grep \*:[[:digit:]]`
+ if [ $? = 0 ]; then
+ echo "Warning: Some services already seem to be listening on all IPs"
+ echo " (including $newjail_ip)"
+ echo " This may cause some confusion, here they are:"
+ echo $newjail_listener
+ fi
+ IFS=$TIFS
+
# Final steps for flavour installation
if [ "${newjail_flav}" ]; then
install -o root -g wheel -m 0755 ${newjail_flav} ${newjail_root}/etc/ezjail.flavour
install -o root -g wheel -m 0755 ${ezjail_share}/ezjail-config.sh ${newjail_root}/etc/rc.d/ezjail-config.sh
- echo "Shell scripts installed, flavourizing on jails first startup"
+ echo "Note: Shell scripts installed, flavourizing on jails first startup"
fi
;;
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