Hi,
Can you move the script to some other location, e.g. home folder? could it be
an apparmor config issue?
Regards,
Razvan
-----Original Message-----
From: Justin <kea-users@lists.isc.org>
To: Kea-users <Kea-users@lists.isc.org>
Cc: Justin <jus...@emeraldbroadband.com>
Date: Saturday, 26 October 2024 1:23 AM EEST
Subject: [Kea-users] kea-dhcp6-server not running hook scripts
Hi folks, I’m trying to get the libdhcp_run_script.so library to run a
script on DHCPv6 address assignment and renewal, but I can’t seem to get any
signs of life out of it. My configuration includes: "hooks-libraries": [
{ "library":
"/usr/lib/x86_64-linux-gnu/kea/hooks/libdhcp_run_script.so",
"parameters": { "name": "/etc/kea/update-v6.sh",
"sync": false } } ], And my update-v6.sh script
looks like: #!/bin/bash unknown_handle() { echo "Unhandled function
call ${*}" exit 123 } lease6_renew () { echo "lease6_renew" >>
/tmp/ithappened.txt echo $(env) >> /tmp/ithappened.txt curl
http://23.x.x.x:8383 exit 0 } lease6_rebind () { echo "lease6_rebind"
>> /tmp/ithappened.txt echo $(env) >> /tmp/ithappened.txt curl
http://23.x.x.x:8383 exit 0 } lease6_expire () { echo "lease6_expire"
>> /tmp/ithappened.txt echo $(env) >> /tmp/ithappened.txt curl
http://23.x.x.x:8383 exit 0 } lease6_recover () { echo
"lease6_recover" >> /tmp/ithappened.txt echo $(env) >> /tmp/ithappened.txt
curl http://23.x.x.x:8383 exit 0 } leases6_committed () { echo
"lease6_committed" >> /tmp/ithappened.txt echo $(env) >>
/tmp/ithappened.txt curl http://23.x.x.x:8383 exit 0 }
lease6_release () { echo "lease6_release" >> /tmp/ithappened.txt echo
$(env) >> /tmp/ithappened.txt curl http://23.x.x.x:8383 exit 0 }
lease6_decline () { echo "lease6_decline" >> /tmp/ithappened.txt echo
$(env) >> /tmp/ithappened.txt curl http://23.x.x.x:8383 exit 0 }
case "$1" in "lease6_renew") lease6_renew ;;
"lease6_rebind") lease6_rebind ;; "lease6_expire")
lease6_expire ;; "lease6_recover") lease6_recover
;; "leases6_committed") leases6_committed ;;
"lease6_release") lease6_release ;; "lease6_decline")
lease6_decline ;; *) unknown_handle "${@}" ;;
esac As you can see, I’m just trying to get some kind of response out of it
so that I can iterate on it – either as output to a file or even just a curl
command showing that my server was touched (I was thinking maybe there’s some
kind of extra file permissions layer that I’m overlooking so I added the curl
command to see if I could get any kind of response out of it at all). I can
see that the library is loaded: Oct 25 22:08:13
b1f18944-0de2-4ac0-8a3d-81c5d81c4a0c kea-dhcp6[126798]: INFO RUN_SCRIPT_LOAD
Run Script hooks library has been loaded Oct 25 22:08:13
b1f18944-0de2-4ac0-8a3d-81c5d81c4a0c kea-dhcp6[126798]: INFO
HOOKS_LIBRARY_LOADED hooks library
/usr/lib/x86_64-linux-gnu/kea/hooks/libdhcp_run_script.so successfully loaded
…but even when I receive messages like this in the journal: Oct 25 22:04:11
b1f18944-0de2-4ac0-8a3d-81c5d81c4a0c kea-dhcp6[126689]: INFO DHCP6_LEASE_RENEW
duid=[00:04:00:00:00:00:00:00:00:00:00:00:ac:1f:6b:49:66:18], tid=0x734250:
lease for address 2604:2940:f1b0:9e7:0:1:1:0 and iaid=0 has been allocated Oct
25 22:04:12 b1f18944-0de2-4ac0-8a3d-81c5d81c4a0c kea-dhcp6[126689]: INFO
DHCP6_PD_LEASE_RENEW
duid=[00:04:00:00:00:00:00:00:00:00:00:00:ac:1f:6b:49:66:18], tid=0x75f834:
lease for prefix 2604:2940:1::/56 and iaid=0 has been allocated …I see no
activity related to the script execution happening. I can run the script
manually and it works fine. The permissions are explicitly set to the _kea user
that is running the server:
root@b1f18944-0de2-4ac0-8a3d-81c5d81c4a0c:/etc/kea# ls -la total 20 drwxr-xr-x
2 root root 4096 Oct 25 22:14 . drwxr-xr-x 76 root root 4096 Oct 10 20:38 ..
-rw-r--r-- 1 root root 1940 Oct 11 21:47 kea-dhcp4.conf -rw-r--r-- 1 root
root 3022 Oct 25 21:51 kea-dhcp6.conf -rwxr-xr-x 1 _kea root 1641 Oct 25 22:07
update-v6.sh root@b1f18944-0de2-4ac0-8a3d-81c5d81c4a0c:/etc/kea# ps aux | grep
kea-dhcp6 _kea 126798 0.0 0.5 67316 20948 ? Ssl 22:08 0:00
/usr/sbin/kea-dhcp6 -c /etc/kea/kea-dhcp6.conf root 126803 0.0 0.4
154112 19760 pts/1 S+ 22:08 0:00 journalctl -xeu kea-dhcp6-server -f
root 126819 0.0 0.0 6652 2236 pts/0 S+ 22:19 0:00 grep
kea-dhcp6 I’m at a loss. What am I missing? -Justin
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