Red Hat Bugzilla – 1044151 – With SeLinux, ports can be labelled per range. setup-ds.pl or setup-ds-admin.pl fail to detect already ranged labelled ports
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This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/47433
With SeLinux it is possible to label ports per range: semanage port -a -t ldap_port_t -p tcp 1389-1391
If we want to create an instance (setup-ds.pl or setup-ds-admin.pl) with port 1390 for example, the script checks if the port has the 'ldap_port_t' label (using 'semanage port -l). But the port being covered by a range rather being present in the ports list, the script fails to detect that the port is correctly labelled. Then it relabel it, that takes a long time.
This could be fixed by something like:
diff /usr/lib64/dirsrv/perl/DSCreate.pm ./DSCreate.pm
1010,1013c1010,1023
< if ($inf->{slapd}->{ServerPort} == $labeledport) {
< $need_label = 0;
< last;
< }
---
> if (index($labeledport, "-") == -1) {
> # this is not a range
> if ($inf->{slapd}->{ServerPort} == $labeledport) {
> $need_label = 0;
> last;
> }
> } else {
> # this is a range
> my @range = split(/-/, $labeledport);
> if ((@range[0] <= $inf->{slapd}->{ServerPort}) && ($inf->{slapd}->{ServerPort} <= @range[1])) {
> $need_label = 0;
> last;
> }
> }
I use setup-ds.pl with -f option specifying file with default answers. ServerPort is 1390
[1] Port is not labeled: 15 sec
$ sudo semanage port -l | awk '/ldap/ && /tcp/'
ldap_port_t tcp 389, 636, 3268, 7389
$ time sudo setup-ds.pl -s -f answers.inf &> /dev/null
real 0m15.013s
user 0m10.477s
sys 0m0.638s
[2] Port is already labeled: 4 sec
$ sudo semanage port -a 1390 -p tcp
$ sudo semanage port -l | awk '/ldap/ && /tcp/'
ldap_port_t tcp 1390, 389, 636, 3268, 7389
$ time sudo setup-ds.pl -s -f answers.inf &> /dev/null
real 0m4.067s
user 0m0.512s
sys 0m0.102s
[3] Port is already labeled using range: 4 sec
$ sudo semanage port -a -t ldap_port_t -p tcp 1389-1391
$ sudo semanage port -l | awk '/ldap/ && /tcp/'
ldap_port_t tcp 1389-1391, 389, 636, 3268, 7389
$ time sudo setup-ds.pl -s -f answers.inf &> /dev/null
real 0m4.155s
user 0m0.510s
sys 0m0.110s
[2] and [3] take the same amount of time -> relabeling is not happening. Hence marking as VERIFIED.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHSA-2015-0416.html