def vlan_aware_vlan_list(ifacename, type_of_vlan):
"""
:param type_of_vlan: can be 'untagged_vlans' or 'vlans'
:return: list of vlans supported on vlan aware physical/bond port
"""
vlan_list = []
attr_value = "brport/%s" % (type_of_vlan)
bitmap_array = linux_common.read_from_sys(attr_value, ifacename, oneline=False)
if bitmap_array:
vlanid = 0
for bit32entry in bitmap_array:
hex32entry = re.sub("0x", "", bit32entry).strip()
# convert hex entry to binary entry. Obtained from
# Stackoverflow
scale = 16
num_of_bits = 32
# converts hex string into binary string
mod32bit = bin(int(hex32entry, scale))[2:].zfill(num_of_bits)
# loop over the reverse of `range(32)` since vlans are listed
# from left to right
for i in reversed(range(32)):
# If vlan bit is set to one, add it to the vlan list
if mod32bit[i] == "1":
vlan_list.append(str(vlanid))
# increment vlan after from the list when check is done
vlanid += 1
return vlan_list
def vlan_aware_vlan_list(ifacename, type_of_vlan):
"""
:param type_of_vlan: can be 'untagged_vlans' or 'vlans'
:return: list of vlans supported on vlan aware physical/bond port
"""
vlan_list = []
attr_value = "brport/%s" % (type_of_vlan)
bitmap_array = linux_common.read_from_sys(attr_value,
ifacename,
oneline=False)
if bitmap_array:
vlanid = 0
for bit32entry in bitmap_array:
hex32entry = re.sub('0x', '', bit32entry).strip()
# convert hex entry to binary entry. Obtained from
# Stackoverflow
scale = 16
num_of_bits = 32
# converts hex string into binary string
mod32bit = bin(int(hex32entry, scale))[2:].zfill(num_of_bits)
# loop over the reverse of `range(32)` since vlans are listed
# from left to right
for i in reversed(range(32)):
# If vlan bit is set to one, add it to the vlan list
if mod32bit[i] == '1':
vlan_list.append(str(vlanid))
# increment vlan after from the list when check is done
vlanid += 1
return vlan_list
def bypass(self):
"""
:return: '1', '0' if LACP bypass is supported. '1' means that its active
:return: None if not supported on this Cumulus Linux release
"""
if not self._lacp_bypass:
self._lacp_bypass = linux_common.read_from_sys(
'bonding/lacp_bypass_allow', self.name)
return self._lacp_bypass
def is_vlan_aware_bridge(ifacename):
"""
used in :meth:`is_svi_initial_test`
:params ifacename: interface name.
:return: True if ``bridge/vlan_filtering`` exists and is set to 1
"""
_vlanfiltering = linux_common.read_from_sys("bridge/vlan_filtering", ifacename)
if _vlanfiltering and _vlanfiltering == "1":
return True
return False
def is_vlan_aware_bridge(ifacename):
"""
used in :meth:`is_svi_initial_test`
:params ifacename: interface name.
:return: True if ``bridge/vlan_filtering`` exists and is set to 1
"""
_vlanfiltering = linux_common.read_from_sys('bridge/vlan_filtering',
ifacename)
if _vlanfiltering and _vlanfiltering == "1":
return True
return False
def read_from_sys(self, attr, oneline=True):
"""
reads an attribute found in the
``/sys/class/net/[iface_name]/`` directory
"""
return common.read_from_sys(attr, self.name, oneline)
def read_from_sys(self, attr, oneline=True):
"""
reads an attribute found in the
``/sys/class/net/[iface_name]/`` directory
"""
return common.read_from_sys(attr, self.name, oneline)
