Issues with the lm_sensors service

I have some issues with the zz-lm_sensors service:

- On Fedora, nc is blocked by SELinux:

 --------------------- lm_sensors output Begin ------------------------

 Ncat: Permission denied.

type=AVC msg=audit(1388681104.665:133): avc:  denied  { name_connect } for
pid=2394 comm="nc" dest=7634
scontext=system_u:system_r:logwatch_t:s0-s0:c0.c1023
tcontext=system_u:object_r:hddtemp_port_t:s0 tclass=tcp_socket

Even when run from the console I get:

 --------------------- lm_sensors output Begin ------------------------

 Ncat: Connection refused.


This I think is better:

my $query_hddtemp  = $ENV{'query_hddtemp'}  || '/usr/bin/nc 127.0.0.1 7634
2>/dev/null';


Although I am a little leery of adding network connections to logwatch.

Also, how common is hddtemp?

- It always generates output.  I run logwatch in a mode where I only want
output if there are problems.  So, similar to the zz-disk_space it should only
output if already printing or $Detail is not 0.

- I *think* SELinux may be blocking access to /proc/cpuinfo as well so that it
cannot determine if a machine is virtual.


Patch which I'll commit shortly:

 Index: scripts/services/zz-lm_sensors
===================================================================
--- scripts/services/zz-lm_sensors      (revision 176)
+++ scripts/services/zz-lm_sensors      (working copy)
@@ -27,7 +27,7 @@
 #Output sensors stats

 my $pathto_sensors = $ENV{'pathto_sensors'} || '/usr/bin/sensors';
-my $query_hddtemp  = $ENV{'query_hddtemp'}  || '/usr/bin/nc 127.0.0.1 7634';
+my $query_hddtemp  = $ENV{'query_hddtemp'}  || '/usr/bin/nc 127.0.0.1 7634
2>/dev/null';
 my $get_kvm_status = $ENV{'get_kvm_status'} || 'cat /proc/cpuinfo | grep -c
"QEMU Virtual CPU"';

 my $sensors = qx($pathto_sensors);
@@ -34,7 +34,7 @@
 my $hdd     = qx($query_hddtemp);
 my $kvm     = qx($get_kvm_status);

-if ($kvm == 0) {
+if ($kvm == 0 and (($ENV{PRINTING} eq 'y') or $Detail)) {
    if ($sensors) {
       print $sensors;
    }



-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA, Boulder/CoRA Office             FAX: 303-415-9702
3380 Mitchell Lane                       [email protected]
Boulder, CO 80301                   http://www.nwra.com

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