[PATCH] Devices: add GreDevice

[Jan Tluka]

This patch adds new device GreDevice to setup a gre tunnel device.

Signed-off-by: Jan Tluka <jtluka(a)redhat.com&gt;
---
 lnst/Devices/GreDevice.py | 44 +++++++++++++++++++++++++++++++++++++++
 lnst/Devices/__init__.py  |  2 ++
 2 files changed, 46 insertions(+)
 create mode 100644 lnst/Devices/GreDevice.py

diff --git a/lnst/Devices/GreDevice.py b/lnst/Devices/GreDevice.py
new file mode 100644
index 00000000..d1affbc3
--- /dev/null
+++ b/lnst/Devices/GreDevice.py
@@ -0,0 +1,44 @@
+"""
+Defines the GreDevice class.
+
+Copyright 2021 Red Hat, Inc.
+Licensed under the GNU General Public License, version 2 as
+published by the Free Software Foundation; see COPYING for details.
+"""
+
+__author__ = """
+jtluka(a)redhat.com (Jan Tluka)
+"""
+
+from lnst.Common.IpAddress import ipaddress
+from lnst.Devices.SoftDevice import SoftDevice
+
+
+class GreDevice(SoftDevice):
+    _name_template = "t_gre"
+    _link_type = "gre"
+    _mandatory_opts = ["remote"]
+
+    @property
+    def local(self):
+        try:
+            return ipaddress(self._get_linkinfo_data_attr("IFLA_GRE_LOCAL"))
+        except:
+            return None
+
+    @local.setter
+    def local(self, val):
+        self._set_linkinfo_data_attr("IFLA_GRE_LOCAL", str(ipaddress(val)))
+        self._nl_link_sync("set")
+
+    @property
+    def remote(self):
+        try:
+            return ipaddress(self._get_linkinfo_data_attr("IFLA_GRE_REMOTE"))
+        except:
+            return None
+
+    @remote.setter
+    def remote(self, val):
+        self._set_linkinfo_data_attr("IFLA_GRE_REMOTE", str(ipaddress(val)))
+        self._nl_link_sync("set")
diff --git a/lnst/Devices/__init__.py b/lnst/Devices/__init__.py
index b38d1b60..ddc462e8 100644
--- a/lnst/Devices/__init__.py
+++ b/lnst/Devices/__init__.py
@@ -7,6 +7,7 @@ from lnst.Devices.TeamDevice import TeamDevice
 from lnst.Devices.MacvlanDevice import MacvlanDevice
 from lnst.Devices.VlanDevice import VlanDevice
 from lnst.Devices.VxlanDevice import VxlanDevice
+from lnst.Devices.GreDevice import GreDevice
 from lnst.Devices.VtiDevice import VtiDevice, Vti6Device
 from lnst.Devices.VethDevice import VethDevice, PairedVethDevice
 from lnst.Devices.VethPair import VethPair
@@ -20,6 +21,7 @@ device_classes = [
         ("MacvlanDevice", MacvlanDevice),
         ("VlanDevice", VlanDevice),
         ("VxlanDevice", VxlanDevice),
+        ("GreDevice", GreDevice),
         ("VethDevice", VethDevice),
         ("PairedVethDevice", PairedVethDevice),
         ("VtiDevice", VtiDevice),
-- 
2.26.3