Merge pull request #12798 from donaldsharp/rib_match_multicast

[mirror_frr.git] / tests / topotests / lib / topotest.py

diff --git a/tests/topotests/lib/topotest.py b/tests/topotests/lib/topotest.py
index 7f68b4ccf3e2760faf5d4c3ae27794ad41198e26..0cd60b228d0803fd8ddc32d7310ceca88d732e29 100644 (file)
--- a/tests/topotests/lib/topotest.py
+++ b/tests/topotests/lib/topotest.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: ISC
 
 #
 # topotest.py
@@ -7,20 +8,6 @@
 # Copyright (c) 2016 by
 # Network Device Education Foundation, Inc. ("NetDEF")
 #
-# Permission to use, copy, modify, and/or distribute this software
-# for any purpose with or without fee is hereby granted, provided
-# that the above copyright notice and this permission notice appear
-# in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
-# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
-# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
-# OF THIS SOFTWARE.
-#
 
 import difflib
 import errno
@@ -595,6 +582,29 @@ def iproute2_is_vrf_capable():
             pass
     return False
 
+def iproute2_is_fdb_get_capable():
+    """
+    Checks if the iproute2 version installed on the system is capable of
+    handling `bridge fdb get` commands to query neigh table resolution.
+
+    Returns True if capability can be detected, returns False otherwise.
+    """
+
+    if is_linux():
+        try:
+            subp = subprocess.Popen(
+                ["bridge", "fdb", "get", "help"],
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE,
+                stdin=subprocess.PIPE,
+            )
+            iproute2_out = subp.communicate()[1].splitlines()[0].split()[0]
+
+            if "Usage" in str(iproute2_out):
+                return True
+        except Exception:
+            pass
+    return False
 
 def module_present_linux(module, load):
     """