[SR-Users] RPCFIFOPATH / DEFINE_FIFO_NAME settings problem
Ginhoux, Patrick
patrick.ginhoux at fr.unisys.com
Mon Apr 3 15:01:20 CEST 2017
Hi,
I use « service kamailio start », so the init.d script that is the one created at the installation.
Cordialement
Patrick GINHOUX
De : sr-users [mailto:sr-users-bounces at lists.sip-router.org] De la part de Daniel-Constantin Mierla
Envoyé : lundi 3 avril 2017 14:56
À : Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Objet : Re: [SR-Users] RPCFIFOPATH / DEFINE_FIFO_NAME settings problem
Hello,
how do you start Kamailio? Via init.d/systemd script?
Cheers,
Daniel
On 03.04.17 14:34, Ginhoux, Patrick wrote:
Hi,
Selinux is disabled.
Cordialement
Patrick GINHOUX
De : Daniel-Constantin Mierla [mailto:miconda at gmail.com]
Envoyé : lundi 3 avril 2017 14:33
À : Ginhoux, Patrick <mailto:patrick.ginhoux at fr.unisys.com> <patrick.ginhoux at fr.unisys.com>; Kamailio (SER) - Users Mailing List <mailto:sr-users at lists.sip-router.org> <sr-users at lists.sip-router.org>
Objet : Re: [SR-Users] RPCFIFOPATH / DEFINE_FIFO_NAME settings problem
Hello,
have you disabled selinux to see if starts ok without it?
Cheers,
Daniel
On 03.04.17 13:54, Ginhoux, Patrick wrote:
Hi,
Well, with one of my colleagues, we did some research and test, but we don’t find where the privilege issue is with the /var/ FS.
If the fifo filename is "/var/run/kamailio/kamailio_rpc_fifo" or "/var/run/kamailio_rpc_fifo", we have this privilege issue.
I thought that the following declaration would prevent this security issue :
modparam("jsonrpcs", "fifo_name", DEFINE_FIFO_NAME)
modparam("jsonrpcs", "fifo_mode", 0755)
modparam("jsonrpcs", "fifo_group", "kamailio")
modparam("jsonrpcs", "fifo_user", "kamailio")
but it is not the case.
For the moment only the fifo filename “/tmp/kamailio_rpc_fifo" is valid for kamailio to start.
Cordialement
Patrick GINHOUX
De : Ginhoux, Patrick
Envoyé : lundi 27 mars 2017 17:46
À : 'miconda at gmail.com <mailto:miconda at gmail.com> ' <mailto:miconda at gmail.com> <miconda at gmail.com>; Kamailio (SER) - Users Mailing List <mailto:sr-users at lists.sip-router.org> <sr-users at lists.sip-router.org>
Objet : RE: [SR-Users] RPCFIFOPATH / DEFINE_FIFO_NAME settings problem
Hi,
I continue to investigate on this area.
I’m thinking that there are some security settings on the FS /var/, and I’m looking for if we have the rights to change it (I work for a project and don’t have all the ability to change some settings without agreement).
I’ll update you later tomorrow.
Cordialement
Patrick GINHOUX
De : Daniel-Constantin Mierla [mailto:miconda at gmail.com]
Envoyé : lundi 27 mars 2017 15:28
À : Ginhoux, Patrick <patrick.ginhoux at fr.unisys.com <mailto:patrick.ginhoux at fr.unisys.com> >; Kamailio (SER) - Users Mailing List <sr-users at lists.sip-router.org <mailto:sr-users at lists.sip-router.org> >
Objet : Re: [SR-Users] RPCFIFOPATH / DEFINE_FIFO_NAME settings problem
Hello,
as recently as last week, someone encountered an file access problem while installing Siremis, which is using also some temporary files in /var/, even it was granting provileges via chown and chmod. All went fine after disabling selinux. It was on a centos.
I am not saying it is the same, but it could, so try without centos to see if the issue persists.
Cheers,
Daniel
On 27/03/2017 15:10, Ginhoux, Patrick wrote:
Hi,
This is the RHEL 7.1 distro, and there is use of selinux, apparmor or other tools.
Are you meaning that the /var/run/ folder would be secured more than other folders?
Cordialement
Patrick GINHOUX
De : sr-users [mailto:sr-users-bounces at lists.sip-router.org] De la part de Daniel-Constantin Mierla
Envoyé : lundi 27 mars 2017 13:52
À : Kamailio (SER) - Users Mailing List <mailto:sr-users at lists.sip-router.org> <sr-users at lists.sip-router.org>
Objet : Re: [SR-Users] RPCFIFOPATH / DEFINE_FIFO_NAME settings problem
Hello,
kamailio should attempt to create the /var/run/kamailio folder if the application is run with enough privileges. However, some operating systems add more constraints on top of the execution user.
What is your OS distro? Do you have selinux, apparmor or other similar tools enabled?
Cheers,
Daniel
On 24/03/2017 17:52, Ginhoux, Patrick wrote:
In my ‘kamctlrc’ file :
## path to FIFO file for engine RPCFIFO
RPCFIFOPATH="/var/run/kamailio/kamailio_rpc_fifo"
#RPCFIFOPATH="/tmp/kamailio_rpc_fifo"
In my ‘kamailio.cfg’ :
!!ifndef DEFINE_FIFO_NAME
!!define DEFINE_FIFO_NAME "/var/run/kamailio/kamailio_rpc_fifo"
!!endif
modparam("jsonrpcs", "pretty_format", 1)
modparam("jsonrpcs", "transport", 2)
modparam("jsonrpcs", "fifo_name", DEFINE_FIFO_NAME)
modparam("jsonrpcs", "fifo_mode", 0755)
modparam("jsonrpcs", "fifo_group", "kamailio")
modparam("jsonrpcs", "fifo_user", "kamailio")
kamailio doesn’t start. It reports ‘Permission denied’ :
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1138]: ERROR: jsonrpcs [jsonrpcs_fifo.c:144]: jsonrpc_init_fifo_server(): Can't create FIFO: Permission denied (mode=493)
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1138]: CRITICAL: jsonrpcs [jsonrpcs_fifo.c:489]: jsonrpc_fifo_process(): failed to init jsonrpc fifo server
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1120]: ALERT: <core> [main.c:741]: handle_sigs(): child process 1138 exited normally, status=255
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1130]: DEBUG: <core> [core/sr_module.c:920]: init_mod_child(): rank 4: tm
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1137]: DEBUG: <core> [core/sr_module.c:920]: init_mod_child(): rank -1: tm
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1127]: DEBUG: htable [htable.c:226]: child_init(): rank is (1)
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1120]: INFO: <core> [main.c:759]: handle_sigs(): terminating due to SIGCHLD
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1139]: DEBUG: <core> [core/sr_module.c:920]: init_mod_child(): rank -2: kex
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1130]: DEBUG: tm [callid.c:137]: child_init_callid(): callid: '15b1f0d63a718465-1130 at 129.227.83.108 <mailto:15b1f0d63a718465-1130 at 129.227.83.108> '
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1137]: DEBUG: tm [callid.c:137]: child_init_callid(): callid: '15b1f0d63a718465-1137 at 129.227.83.108 <mailto:15b1f0d63a718465-1137 at 129.227.83.108> '
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1127]: DEBUG: <core> [core/action.c:1656]: run_child_one_init_route(): attempting to run event_route[core:worker-one-init]
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1136]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1135]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1134]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1133]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1132]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1131]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1129]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1128]: INFO: <core> [main.c:814]: sig_usr(): signal 15 received
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1120]: ERROR: ctl [ctl.c:387]: mod_destroy(): ERROR: ctl: could not delete unix socket /var/run/kamailio//kamailio_ctl: Permission denied (13)
Mar 24 17:31:21 localhost /usr/sbin/kamailio[1120]: ERROR: jsonrpcs [jsonrpcs_fifo.c:595]: jsonrpc_fifo_destroy(): FIFO stat failed: Permission denied
If I replace the values in the 2 files as appropriate :
In the ‘kamctlrc” to RPCFIFOPATH="/tmp/kamailio_rpc_fifo"
In the ‘kamailio.cfg” to !!define DEFINE_FIFO_NAME "/tmp/kamailio_rpc_fifo"
Then kamailo starts :
[root at vm-vse02-siprouter1 ~]# ps -ef |grep kam
kamailio 1235 1 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1236 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1237 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1238 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1239 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1240 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1241 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1242 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1243 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1244 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1245 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1246 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1247 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
kamailio 1248 1235 0 17:37 ? 00:00:00 /usr/sbin/kamailio -P /var/run/kamailio.pid -m 1024 -M 8 -u kamailio -g kamailio
root 1251 1165 0 17:37 pts/0 00:00:00 grep --color=auto kam
and I can get result from kamctl/kamcmd commands :
[root at vm-vse02-siprouter1 ~]# kamctl dispatcher dump
which: no gdb in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/)
{
"jsonrpc": "2.0",
"result": {
"NRSETS": 1,
"RECORDS": [{
"SET": {
"ID": 1,
"TARGETS": [{
"DEST": {
"URI": <sip:cs1-tool-misc.orange-voicemail.net:5060> "sip:cs1-tool-misc.orange-voicemail.net:5060",
"FLAGS": "AP",
"PRIORITY": 0
}
}]
}
}]
},
"id": 1301
}
[root at vm-vse02-siprouter1 ~]# kamcmd dispatcher.list
{
NRSETS: 1
RECORDS: {
SET: {
ID: 1
TARGETS: {
DEST: {
URI: sip:cs1-tool-misc.orange-voicemail.net:5060
FLAGS: AP
PRIORITY: 0
}
}
}
}
}
Now, if I change the fifo patch and name to “/var/run/kamailio/kamailio_rpc_fifo’ and apply the following rights on /var/run/ to:
chmod 755 kamalio/
chown + kamailio:kamailio kamailio/
then kamailio starts.
Is there a reason for these results ?
Thanks in advance for your answer.
Cordialement
Patrick GINHOUX
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--
Daniel-Constantin Mierla
www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com <http://www.asipto.com>
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com <http://www.kamailioworld.com>
--
Daniel-Constantin Mierla
www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com <http://www.asipto.com>
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com <http://www.kamailioworld.com>
--
Daniel-Constantin Mierla
www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Kamailio Advanced Training - May 22-24 (USA) - www.asipto.com <http://www.asipto.com>
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com <http://www.kamailioworld.com>
--
Daniel-Constantin Mierla
www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Kamailio Advanced Training - May 22-24 (USA) - www.asipto.com <http://www.asipto.com>
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com <http://www.kamailioworld.com>
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