osc copypac from project:home:LPechacek package:linuxptp revision:1
OBS-URL: https://build.opensuse.org/package/show/network:time/linuxptp?expand=0&rev=1
This commit is contained in:
Jiri Bohac
Git OBS Bridge
commit
4bbd9b7363
23
.gitattributes
vendored
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23
.gitattributes
vendored
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@ -0,0 +1,23 @@
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## Default LFS
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*.7z filter=lfs diff=lfs merge=lfs -text
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*.bsp filter=lfs diff=lfs merge=lfs -text
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*.bz2 filter=lfs diff=lfs merge=lfs -text
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*.gem filter=lfs diff=lfs merge=lfs -text
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||||
*.gz filter=lfs diff=lfs merge=lfs -text
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||||
*.jar filter=lfs diff=lfs merge=lfs -text
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||||
*.lz filter=lfs diff=lfs merge=lfs -text
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||||
*.lzma filter=lfs diff=lfs merge=lfs -text
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||||
*.obscpio filter=lfs diff=lfs merge=lfs -text
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*.oxt filter=lfs diff=lfs merge=lfs -text
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||||
*.pdf filter=lfs diff=lfs merge=lfs -text
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||||
*.png filter=lfs diff=lfs merge=lfs -text
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||||
*.rpm filter=lfs diff=lfs merge=lfs -text
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*.tbz filter=lfs diff=lfs merge=lfs -text
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*.tbz2 filter=lfs diff=lfs merge=lfs -text
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||||
*.tgz filter=lfs diff=lfs merge=lfs -text
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||||
*.ttf filter=lfs diff=lfs merge=lfs -text
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*.txz filter=lfs diff=lfs merge=lfs -text
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*.whl filter=lfs diff=lfs merge=lfs -text
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*.xz filter=lfs diff=lfs merge=lfs -text
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*.zip filter=lfs diff=lfs merge=lfs -text
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*.zst filter=lfs diff=lfs merge=lfs -text
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3
linuxptp-1.8.tgz
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3
linuxptp-1.8.tgz
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@ -0,0 +1,3 @@
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||||
version https://git-lfs.github.com/spec/v1
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||||
oid sha256:fa8e00f6ec73cefa7bb313dce7f60dfe5eb9e2bde3353594e9ac18edc93e5165
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||||
size 147764
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||||
192
linuxptp-howto.txt
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192
linuxptp-howto.txt
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@ -0,0 +1,192 @@
|
||||
How to Set Up a PTP Network Using Linux PTP and SUSE® Linux Enterprise
|
||||
======================================================================
|
||||
March 2014
|
||||
|
||||
Scope
|
||||
-----
|
||||
This how-to guide provides a conceptual overview of Linux PTP (Precision Time
|
||||
Protocol) and explains the basic setup of a PTP network consisting of a single
|
||||
Ethernet segment using Linux PTP and SUSE Linux Enterprise.
|
||||
|
||||
Why Precision Time Protocol?
|
||||
----------------------------
|
||||
Precision Time Protocol (PTP) provides accurate clock synchronization across a
|
||||
local group of hosts. As opposed to Network Time Protocol (NTP), it does not
|
||||
aim at minimizing a host's difference from official world time but tries to
|
||||
minimize the difference from other hosts in the group. Traditionally, the task
|
||||
of precise synchronization in a group has been achieved with GPS time
|
||||
synchronization at each host or a central clock synchronizing the hosts via
|
||||
specialized hardware. PTP offers comparable accuracy using Ethernet based
|
||||
hardware, assuming stable network latencies and symmetric transport delays.
|
||||
|
||||
About the Linux Implementation of PTP
|
||||
-------------------------------------
|
||||
Linux PTP takes advantage of the hardware support implemented in some network
|
||||
interface cards (NICs). In addition, this implementation can work with some
|
||||
NICs that do not provide hardware PTP facilities. However, the necessary
|
||||
functionality is implemented in their hardware drivers.
|
||||
|
||||
There are three components of the PTP software:
|
||||
* The in-kernel PTP support, consisting of the kernel PTP subsystem,
|
||||
pulse-per-second subsystem and NIC driver code changes necessary for time
|
||||
stamping passing packets
|
||||
* Daemon for synchronizing the NIC's clock and system clock needed in
|
||||
hardware time stamping setup
|
||||
* Daemon for implementing the protocol itself, which does the time
|
||||
calculations and responds to the inquiries from other hosts
|
||||
|
||||
The Beginning
|
||||
-------------
|
||||
First, we need to check what type of time stamping the NIC in question does.
|
||||
That can be determined using ethtool utility with option -T. Example output is
|
||||
as follows:
|
||||
# ethtool -T enp4s0f1
|
||||
Time stamping parameters for enp4s0f1:
|
||||
Capabilities:
|
||||
hardware-transmit (SOF_TIMESTAMPING_TX_HARDWARE)
|
||||
software-transmit (SOF_TIMESTAMPING_TX_SOFTWARE)
|
||||
hardware-receive (SOF_TIMESTAMPING_RX_HARDWARE)
|
||||
software-receive (SOF_TIMESTAMPING_RX_SOFTWARE)
|
||||
software-system-clock (SOF_TIMESTAMPING_SOFTWARE)
|
||||
hardware-raw-clock (SOF_TIMESTAMPING_RAW_HARDWARE)
|
||||
PTP Hardware Clock: 3
|
||||
Hardware Transmit Timestamp Modes:
|
||||
off (HWTSTAMP_TX_OFF)
|
||||
on (HWTSTAMP_TX_ON)
|
||||
Hardware Receive Filter Modes:
|
||||
none (HWTSTAMP_FILTER_NONE)
|
||||
ptpv1-l4-sync (HWTSTAMP_FILTER_PTP_V1_L4_SYNC)
|
||||
ptpv1-l4-delay-req (HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ)
|
||||
ptpv2-l4-sync (HWTSTAMP_FILTER_PTP_V2_L4_SYNC)
|
||||
ptpv2-l4-delay-req (HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ)
|
||||
ptpv2-l2-sync (HWTSTAMP_FILTER_PTP_V2_L2_SYNC)
|
||||
ptpv2-l2-delay-req (HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ)
|
||||
ptpv2-event (HWTSTAMP_FILTER_PTP_V2_EVENT)
|
||||
|
||||
For us the most important section is Capabilities. That shows the card in the
|
||||
example can do both hardware time stamping (“hardware-transmit” and
|
||||
“hardware-receive”) using hardware clock (“hardware-raw-clock“) and software
|
||||
time stamping using kernel system clock (“software-transmit“,
|
||||
“software-receive“ and “software-system-clock“).
|
||||
|
||||
Cards that support only software time stamping display only the “software-“
|
||||
capabilities and none of the “hardware-“ ones. The time stamping mode will
|
||||
later be needed for configuring the user space daemon.
|
||||
|
||||
The User Space Daemons
|
||||
----------------------
|
||||
The daemons are primarily configured via options in /etc/sysconfig/ptp4l and
|
||||
/etc/sysconfig/phc2sys. These files control what options will be provided to
|
||||
the two daemons: the protocol daemon, called ptp4l and the synchronization
|
||||
daemon, called phc2sys. Apart from /etc/sysconfig/ there is the /etc/ptp4l.conf
|
||||
configuration file controlling further behavior of the protocol daemon.
|
||||
|
||||
Configuring Linux PTP with Hardware Time Stamping
|
||||
-------------------------------------------------
|
||||
The hardware time stamping setup includes an independent clock running on the
|
||||
network card. This independent clock is used for timing calculations in PTP.
|
||||
|
||||
The NIC PTP clock is synchronized to the system clock by the phc2sys daemon.
|
||||
Therefore, in this setup you always need to enable the phc2sys service. The
|
||||
NIC clock synchronization daemon phc2sys always synchronizes clocks in one
|
||||
direction, for example, slave clock to master clock. This is important when
|
||||
configuring a group master.
|
||||
|
||||
For a group master, you usually need to synchronize the group to its system
|
||||
clock, which itself is synchronized to a precise time using NTP, for example.
|
||||
In this scenario the options for phc2sys will be “-s CLOCK_REALTIME -c ethX -w”
|
||||
where CLOCK_REALTIME is a special string recognized by phc2sys corresponding to
|
||||
the system clock, and ethX corresponds to the network interface that is
|
||||
connected with the PTP clock. For a PTP slave host the configuration is simpler
|
||||
and involves only telling phc2sys which network interface is associated with
|
||||
the slave PTP clock. Having the system clock as master is the default here, so
|
||||
the options are like “-s ethX -w”
|
||||
|
||||
You might have noticed “-w” in the example options above. That is connected
|
||||
with the fact that the PTP clock is running in International Atomic Time (TAI),
|
||||
which is not the Coordinated Universal Time (UTC) used by system clock. There
|
||||
is a certain offset between these time scales. The “-w” option ensures the
|
||||
offset between TAI and UTC is read from the ptp4l daemon. See the phc2sys(8)
|
||||
manual page for more details about time scale usage.
|
||||
|
||||
No extra options need to be passed to ptp4l as hardware time stamping is the
|
||||
default. The option string in /etc/sysconfig/ptp4l will typically look like
|
||||
“-i ethX -f /etc/ptp4l.conf” where ethX is a placeholder for the actual
|
||||
interface name.
|
||||
|
||||
Configuring Linux PTP with Software Time Stamping
|
||||
-------------------------------------------------
|
||||
With software time stamping the situation is simpler. There is no independent
|
||||
PTP clock to be synchronized, so phc2sys is not in use and the phc2sys service
|
||||
can be disabled.
|
||||
|
||||
The only change that must be made is telling ptp4l that the NIC in question
|
||||
uses software time stamping mode. That can be accomplished by using “-S” in
|
||||
OPTIONS in /etc/sysconfig/ptp4l. Therefore, the typical option string
|
||||
will look like “-i ethX -f /etc/ptp4l.conf -S” where ethX is again a
|
||||
placeholder for the actual interface name.
|
||||
|
||||
When there is a PTP group master using software time stamping, the time
|
||||
announced to the network is not using native PTP time scale. That may cause
|
||||
interoperability issues with third-party PTP solutions and should be taken into
|
||||
account when designing the system.
|
||||
|
||||
Configuring the Group Master
|
||||
----------------------------
|
||||
In every group there is one master clock, and the other hosts run slave clocks.
|
||||
The election of group master is done automatically based on the host's clock
|
||||
parameters. Most important is the host priority value in the PTP domain.
|
||||
|
||||
As there is a difference in the system setup for slave clocks and master
|
||||
clocks, the group master should be selected by the system administrator, and
|
||||
its priority value should prioritize it over other hosts in the group. That
|
||||
should be done by setting the lower priority1 value in /etc/ptp4l.conf.
|
||||
|
||||
Domains and Transport Mechanisms
|
||||
--------------------------------
|
||||
It is possible for multiple PTP host groups to share a single Ethernet segment.
|
||||
These groups can be separated by setting different values for the domainNumber
|
||||
in /etc/ptp4l.conf. Hosts belonging to one group share the same value of
|
||||
domainNumber.
|
||||
|
||||
There are also different transport options for PTP packets over Ethernet. PTP
|
||||
messages can be encapsulated either in UDP4 (which is the default), UDP6 or
|
||||
directly into Ethernet frames. The transport mechanism can be selected either
|
||||
via command line option to ptp4l or in the /etc/ptp4l.conf configuration file.
|
||||
See the ptp4l(8) manual page for more details.
|
||||
|
||||
Examples of Configurations
|
||||
--------------------------
|
||||
Configuration examples in this section are not full configuration files but
|
||||
rather minimal list of changes that should be done to the indicated files. The
|
||||
string ethX always stands for the actual network interface name in your setup.
|
||||
|
||||
Slave clock using software time stamping:
|
||||
/etc/sysconfig/ptp4l:
|
||||
OPTIONS=”-f /etc/ptp4l.conf -i ethX”
|
||||
No changes made to the distribution /etc/ptp4l.conf.
|
||||
|
||||
Slave clock using hardware time stamping:
|
||||
/etc/sysconfig/ptp4l:
|
||||
OPTIONS=”-f /etc/ptp4l.conf -i ethX”
|
||||
/etc/sysconfig/phc2sys:
|
||||
OPTIONS=”-s ethX -w”
|
||||
No changes made to the distribution /etc/ptp4l.conf.
|
||||
|
||||
Master clock using hardware time stamping:
|
||||
/etc/sysconfig/ptp4l:
|
||||
OPTIONS=”-f /etc/ptp4l.conf -i ethX”
|
||||
/etc/sysconfig/phc2sys:
|
||||
OPTIONS=”-s CLOCK_REALTIME -c ethX -w”
|
||||
/etc/ptp4l.conf:
|
||||
priority1 127
|
||||
|
||||
Master clock using software time stamping, not generally recommended:
|
||||
/etc/sysconfig/ptp4l:
|
||||
OPTIONS=”-f /etc/ptp4l.conf -i ethX”
|
||||
/etc/ptp4l.conf:
|
||||
priority1 127
|
||||
|
||||
(C) 2014 SUSE LLC. All Rights Reserved. SUSE and the SUSE logo are registered
|
||||
trademarks of SUSE LLC in the United States and other countries. All
|
||||
third-party trademarks are the property of their respective owners.
|
||||
74
linuxptp.changes
Normal file
74
linuxptp.changes
Normal file
@ -0,0 +1,74 @@
|
||||
-------------------------------------------------------------------
|
||||
Thu May 25 12:20:17 UTC 2017 - lpechacek@suse.com
|
||||
|
||||
- upgraded to 1.8
|
||||
- new tools: timemaster, phc_ctl
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Wed Sep 3 01:41:37 CEST 2014 - ro@suse.de
|
||||
|
||||
- sanitize release line in specfile
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Thu Mar 27 12:16:20 UTC 2014 - lpechacek@suse.com
|
||||
|
||||
- updated How To to mention ethtool (bnc#865358)
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Wed Mar 26 16:51:51 CET 2014 - jbohac@suse.cz
|
||||
|
||||
- convert to systemd (bnc#865355)
|
||||
- two separate services (ptp4l and phc2sys) instead of linuxptp
|
||||
- two separate config files:
|
||||
/etc/syscconfig/ptp4l and /etc/sysconfig/phc2sys instead of
|
||||
/etc/sysconfig/linuxptp
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Tue Feb 18 18:59:56 CET 2014 - jbohac@suse.cz
|
||||
|
||||
- upgraded to 1.4
|
||||
- fixed FSF address in init file
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Fri Jul 26 10:12:08 UTC 2013 - lpechacek@suse.com
|
||||
|
||||
- added Linux PTP Howto
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Thu Jun 6 09:26:54 UTC 2013 - lpechacek@suse.com
|
||||
|
||||
- adjusted sysconfig defaults to match changes made to phc2sys
|
||||
behavior
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Wed Jun 5 16:00:18 CEST 2013 - jbohac@suse.cz
|
||||
|
||||
- upgraded to 1.2.git74e70372
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Tue Apr 23 16:50:16 CEST 2013 - jbohac@suse.cz
|
||||
|
||||
- upgraded to 1.2
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Mon Mar 25 15:44:25 UTC 2013 - lpechacek@suse.com
|
||||
|
||||
- reviewed by Security (bnc#809336)
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Fri Mar 15 11:23:35 UTC 2013 - cfarrell@suse.com
|
||||
|
||||
- license update: GPL-2.0+
|
||||
No indication of a GPL version 2 only license. Also, use SPDX format
|
||||
where possible
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Wed Mar 6 10:44:35 UTC 2013 - lpechacek@suse.com
|
||||
|
||||
- upgraded to 1.1
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Fri Feb 15 05:37:47 UTC 2013 - lpechacek@suse.com
|
||||
|
||||
- initial packaging
|
||||
|
||||
8
linuxptp.firewall
Normal file
8
linuxptp.firewall
Normal file
@ -0,0 +1,8 @@
|
||||
## Name: Precision Time Protocol v2
|
||||
## Description: Ports needed for PTPv2 over UDP
|
||||
#
|
||||
# For a more detailed description of the individual variables see
|
||||
# the comments for FW_SERVICES_EXT_* in /etc/sysconfig/SuSEfirewall2
|
||||
#
|
||||
|
||||
UDP="ptp-general ptp-event"
|
||||
112
linuxptp.spec
Normal file
112
linuxptp.spec
Normal file
@ -0,0 +1,112 @@
|
||||
#
|
||||
# spec file for package linuxptp
|
||||
#
|
||||
# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
|
||||
#
|
||||
# All modifications and additions to the file contributed by third parties
|
||||
# remain the property of their copyright owners, unless otherwise agreed
|
||||
# upon. The license for this file, and modifications and additions to the
|
||||
# file, is the same license as for the pristine package itself (unless the
|
||||
# license for the pristine package is not an Open Source License, in which
|
||||
# case the license is the MIT License). An "Open Source License" is a
|
||||
# license that conforms to the Open Source Definition (Version 1.9)
|
||||
# published by the Open Source Initiative.
|
||||
|
||||
# Please submit bugfixes or comments via http://bugs.opensuse.org/
|
||||
#
|
||||
|
||||
|
||||
Name: linuxptp
|
||||
Version: 1.8
|
||||
Release: 0
|
||||
Summary: Precision Time Protocol v2 daemon
|
||||
License: GPL-2.0+
|
||||
Group: Productivity/Networking/Other
|
||||
Url: http://linuxptp.sourceforge.net/
|
||||
Source0: linuxptp-%{version}.tgz
|
||||
Source1: ptp4l.service
|
||||
Source2: sysconfig.ptp4l
|
||||
Source3: linuxptp.firewall
|
||||
Source4: linuxptp-howto.txt
|
||||
Source5: phc2sys.service
|
||||
Source6: sysconfig.phc2sys
|
||||
BuildRequires: kernel-source
|
||||
BuildRequires: systemd
|
||||
PreReq: %fillup_prereq
|
||||
Provides: ptp-timekeeping
|
||||
BuildRoot: %{_tmppath}/%{name}-%{version}-build
|
||||
%{?systemd_requires}
|
||||
|
||||
%description
|
||||
This software is an implementation of the Precision Time Protocol (PTP)
|
||||
according to IEEE standard 1588 for Linux. The dual design goals are to provide
|
||||
a robust implementation of the standard and to use the most relevant and modern
|
||||
Application Programming Interfaces (API) offered by the Linux kernel.
|
||||
|
||||
%prep
|
||||
%setup0 -q
|
||||
|
||||
%build
|
||||
export EXTRA_CFLAGS="$RPM_OPT_FLAGS -Iusr/include"
|
||||
|
||||
# take missing header files form kernel sources
|
||||
make -C /usr/src/linux headers_install O=$PWD
|
||||
|
||||
make %{?_smp_mflags}
|
||||
|
||||
cp %{SOURCE4} .
|
||||
|
||||
%install
|
||||
make prefix=%{buildroot}/usr mandir=%{buildroot}/%{_mandir} install
|
||||
|
||||
%__install -Dm 644 %{SOURCE1} %{buildroot}/%{_unitdir}/ptp4l.service
|
||||
%__install -Dm 644 %{SOURCE5} %{buildroot}/%{_unitdir}/phc2sys.service
|
||||
ln -s /usr/sbin/service %{buildroot}%{_sbindir}/rcptp4l
|
||||
ln -s /usr/sbin/service %{buildroot}%{_sbindir}/rcphc2sys
|
||||
|
||||
%__install -Dm 644 default.cfg %{buildroot}/%{_sysconfdir}/ptp4l.conf
|
||||
|
||||
%__install -Dm 644 %{SOURCE2} %{buildroot}/var/adm/fillup-templates/sysconfig.ptp4l
|
||||
%__install -Dm 644 %{SOURCE6} %{buildroot}/var/adm/fillup-templates/sysconfig.phc2sys
|
||||
|
||||
%__install -Dm 644 %{SOURCE3} %{buildroot}/%{_sysconfdir}/sysconfig/SuSEfirewall2.d/services/linuxptp
|
||||
|
||||
%pre
|
||||
%service_add_pre ptp4l.service phc2sys.service
|
||||
|
||||
%post
|
||||
%{fillup_only -n ptp4l}
|
||||
%{fillup_only -n phc2sys}
|
||||
%service_add_post ptp4l.service phc2sys.service
|
||||
|
||||
%preun
|
||||
%service_del_preun ptp4l.service phc2sys.service
|
||||
|
||||
%postun
|
||||
%service_del_postun ptp4l.service phc2sys.service
|
||||
|
||||
%files
|
||||
%defattr(-,root,root)
|
||||
%{_unitdir}/ptp4l.service
|
||||
%{_unitdir}/phc2sys.service
|
||||
%{_sbindir}/rcptp4l
|
||||
%{_sbindir}/rcphc2sys
|
||||
%config %{_sysconfdir}/ptp4l.conf
|
||||
%config %{_sysconfdir}/sysconfig/SuSEfirewall2.d/services/linuxptp
|
||||
%{_sbindir}/hwstamp_ctl
|
||||
%{_sbindir}/phc2sys
|
||||
%{_sbindir}/phc_ctl
|
||||
%{_sbindir}/pmc
|
||||
%{_sbindir}/ptp4l
|
||||
%{_sbindir}/timemaster
|
||||
%{_mandir}/man8/hwstamp_ctl.8.gz
|
||||
%{_mandir}/man8/phc2sys.8.gz
|
||||
%{_mandir}/man8/phc_ctl.8.gz
|
||||
%{_mandir}/man8/pmc.8.gz
|
||||
%{_mandir}/man8/ptp4l.8.gz
|
||||
%{_mandir}/man8/timemaster.8.gz
|
||||
/var/adm/fillup-templates/sysconfig.ptp4l
|
||||
/var/adm/fillup-templates/sysconfig.phc2sys
|
||||
%doc README.org COPYING linuxptp-howto.txt
|
||||
|
||||
%changelog
|
||||
11
phc2sys.service
Normal file
11
phc2sys.service
Normal file
@ -0,0 +1,11 @@
|
||||
[Unit]
|
||||
Description=PTP: Synchronize two clocks
|
||||
After=ntpdate.service
|
||||
|
||||
[Service]
|
||||
Type=simple
|
||||
EnvironmentFile=-/etc/sysconfig/phc2sys
|
||||
ExecStart=/usr/sbin/phc2sys $OPTIONS
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
10
ptp4l.service
Normal file
10
ptp4l.service
Normal file
@ -0,0 +1,10 @@
|
||||
[Unit]
|
||||
Description=PTP: Boundary/Ordinary Clock
|
||||
|
||||
[Service]
|
||||
Type=simple
|
||||
EnvironmentFile=-/etc/sysconfig/ptp4l
|
||||
ExecStart=/usr/sbin/ptp4l $OPTIONS
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
9
sysconfig.phc2sys
Normal file
9
sysconfig.phc2sys
Normal file
@ -0,0 +1,9 @@
|
||||
## Path: Network/LinuxPTP
|
||||
## Description: Precision Time Protocol (PTP): phc2sys settings
|
||||
## Type: string
|
||||
## Default: "-s eth0 -w"
|
||||
## ServiceRestart: phc2sys
|
||||
#
|
||||
# Arguments when starting phc2sys(8).
|
||||
#
|
||||
OPTIONS="-s eth0 -w"
|
||||
9
sysconfig.ptp4l
Normal file
9
sysconfig.ptp4l
Normal file
@ -0,0 +1,9 @@
|
||||
## Path: Network/LinuxPTP
|
||||
## Description: Precision Time Protocol (PTP): ptp4l settings
|
||||
## Type: string
|
||||
## Default: "-i eth0 -f /etc/ptp4l.conf"
|
||||
## ServiceRestart: ptp4l
|
||||
#
|
||||
# Arguments when starting ptp4l(8).
|
||||
#
|
||||
OPTIONS="-i eth0 -f /etc/ptp4l.conf"
|
||||
Loading…
Reference in New Issue
Block a user