Linux genie support (#3217)

Co-authored-by: Matthew Pecarina <7978152+mpecarina@users.noreply.github.com>

netmiko/utilities.py

@@ -499,7 +499,7 @@ def get_structured_data_genie(
         )
         raise ValueError(msg)
 
-    if "cisco" not in platform:
+    if "cisco" not in platform and "linux" not in platform:
         return raw_output
 
     genie_device_mapper = {
@@ -508,6 +508,9 @@ def get_structured_data_genie(
         "cisco_xr": "iosxr",
         "cisco_nxos": "nxos",
         "cisco_asa": "asa",
+        "linux": "linux",
+        "f5_linux": "linux",
+        "ovs_linux": "linux",
     }
 
     os = None

tests/unit/test_utilities.py

@@ -378,6 +378,20 @@ def test_get_structured_data_genie():
     )
     assert result["version"]["chassis"] == "WS-C3560CX-8PC-S"
 
+    netstat_output = """
+Kernel IP routing table
+Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
+0.0.0.0         172.16.0.1      0.0.0.0         UG        0 0          0 eth0
+169.254.169.254 0.0.0.0         255.255.255.255 UH        0 0          0 eth0
+172.16.0.0      0.0.0.0         255.255.255.0   U         0 0          0 eth0
+"""
+    netstat_output = netstat_output.strip()
+    routes = utilities.get_structured_data_genie(
+        netstat_output, platform="linux", command="netstat -rn"
+    )
+    nexthop_gw = routes["routes"]["0.0.0.0"]["mask"]["0.0.0.0"]["nexthop"][1]["gateway"]
+    assert nexthop_gw == "172.16.0.1"
+
 
 @pytest.mark.parametrize(
     "max_loops,delay_factor,timeout,result",