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-rw-r--r--python/vyos/utils/network.py45
-rw-r--r--python/vyos/utils/process.py2
2 files changed, 45 insertions, 2 deletions
diff --git a/python/vyos/utils/network.py b/python/vyos/utils/network.py
index bc6899e45..c96ee4eed 100644
--- a/python/vyos/utils/network.py
+++ b/python/vyos/utils/network.py
@@ -429,7 +429,7 @@ def is_subnet_connected(subnet, primary=False):
return False
-def is_afi_configured(interface, afi):
+def is_afi_configured(interface: str, afi):
""" Check if given address family is configured, or in other words - an IP
address is assigned to the interface. """
from netifaces import ifaddresses
@@ -446,3 +446,46 @@ def is_afi_configured(interface, afi):
return False
return afi in addresses
+
+def get_vxlan_vlan_tunnels(interface: str) -> list:
+ """ Return a list of strings with VLAN IDs configured in the Kernel """
+ from json import loads
+ from vyos.utils.process import cmd
+
+ if not interface.startswith('vxlan'):
+ raise ValueError('Only applicable for VXLAN interfaces!')
+
+ # Determine current OS Kernel configured VLANs
+ #
+ # $ bridge -j -p vlan tunnelshow dev vxlan0
+ # [ {
+ # "ifname": "vxlan0",
+ # "tunnels": [ {
+ # "vlan": 10,
+ # "vlanEnd": 11,
+ # "tunid": 10010,
+ # "tunidEnd": 10011
+ # },{
+ # "vlan": 20,
+ # "tunid": 10020
+ # } ]
+ # } ]
+ #
+ os_configured_vlan_ids = []
+ tmp = loads(cmd(f'bridge --json vlan tunnelshow dev {interface}'))
+ if tmp:
+ for tunnel in tmp[0].get('tunnels', {}):
+ vlanStart = tunnel['vlan']
+ if 'vlanEnd' in tunnel:
+ vlanEnd = tunnel['vlanEnd']
+ # Build a real list for user VLAN IDs
+ vlan_list = list(range(vlanStart, vlanEnd +1))
+ # Convert list of integers to list or strings
+ os_configured_vlan_ids.extend(map(str, vlan_list))
+ # Proceed with next tunnel - this one is complete
+ continue
+
+ # Add single tunel id - not part of a range
+ os_configured_vlan_ids.append(str(vlanStart))
+
+ return os_configured_vlan_ids
diff --git a/python/vyos/utils/process.py b/python/vyos/utils/process.py
index e09c7d86d..1c861815e 100644
--- a/python/vyos/utils/process.py
+++ b/python/vyos/utils/process.py
@@ -139,7 +139,7 @@ def cmd(command, flag='', shell=None, input=None, timeout=None, env=None,
expect: a list of error codes to consider as normal
"""
decoded, code = popen(
- command, flag,
+ command.lstrip(), flag,
stdout=stdout, stderr=stderr,
input=input, timeout=timeout,
env=env, shell=shell,