def list_tc_filters(device, parent, namespace=None):
LOG.info('%s(): caller(): %s', log_utils.get_fname(1),
log_utils.get_fname(2))
"""List TC filter in a device
:param device: (string) device name
:param parent: (string) qdisc parent class ('root', 'ingress', '2:10')
:param namespace: (string) (optional) namespace name
"""
parent = iproute_linux.transform_handle(parent)
filters = priv_tc_lib.list_tc_filters(device, parent, namespace=namespace)
retval = []
for filter in filters:
tca_options = _get_attr(filter, 'TCA_OPTIONS')
if not tca_options:
continue
tca_u32_sel = _get_attr(tca_options, 'TCA_U32_SEL')
if not tca_u32_sel:
continue
keys = []
for key in tca_u32_sel['keys']:
key_off = key['key_off']
value = 0
for i in range(4):
value = (value << 8) + (key_off & 0xff)
key_off = key_off >> 8
keys.append({
'value': value,
'mask': key['key_val'],
'offset': key['key_offmask']
})
value = {'keys': keys}
tca_u32_police = _get_attr(tca_options, 'TCA_U32_POLICE')
if tca_u32_police:
tca_police_tbf = _get_attr(tca_u32_police, 'TCA_POLICE_TBF')
if tca_police_tbf:
value['rate_kbps'] = int(tca_police_tbf['rate'] * 8 / 1024)
value['burst_kb'] = int(
_calc_burst(tca_police_tbf['rate'],
tca_police_tbf['burst']) * 8 / 1024)
value['mtu'] = tca_police_tbf['mtu']
retval.append(value)
return retval
def list_tc_filters(device, parent, namespace=None):
"""List TC filter in a device
:param device: (string) device name
:param parent: (string) qdisc parent class ('root', 'ingress', '2:10')
:param namespace: (string) (optional) namespace name
"""
parent = iproute_linux.transform_handle(parent)
filters = priv_tc_lib.list_tc_filters(device, parent, namespace=namespace)
retval = []
for filter in filters:
tca_options = _get_attr(filter, 'TCA_OPTIONS')
if not tca_options:
continue
tca_u32_sel = _get_attr(tca_options, 'TCA_U32_SEL')
if not tca_u32_sel:
continue
keys = []
for key in tca_u32_sel['keys']:
key_off = key['key_off']
value = 0
for i in range(4):
value = (value << 8) + (key_off & 0xff)
key_off = key_off >> 8
keys.append({'value': value,
'mask': key['key_val'],
'offset': key['key_offmask']})
value = {'keys': keys}
tca_u32_police = _get_attr(tca_options, 'TCA_U32_POLICE')
if tca_u32_police:
tca_police_tbf = _get_attr(tca_u32_police, 'TCA_POLICE_TBF')
if tca_police_tbf:
value['rate_kbps'] = int(tca_police_tbf['rate'] * 8 / 1024)
value['burst_kb'] = int(
_calc_burst(tca_police_tbf['rate'],
tca_police_tbf['burst']) * 8 / 1024)
value['mtu'] = tca_police_tbf['mtu']
retval.append(value)
return retval