def dump_attrs(ofd, attrs, attrlen, prefix=0):
"""https://github.com/thom311/libnl/blob/libnl3_2_25/lib/msg.c#L869.
Positional arguments:
ofd -- function to call with arguments similar to `logging.debug`.
attrs -- nlattr class instance.
attrlen -- length of payload (integer).
Keyword arguments:
prefix -- additional number of whitespace pairs to prefix each log statement with.
"""
prefix_whitespaces = ' ' * prefix
rem = c_int()
for nla in nla_for_each_attr(attrs, attrlen, rem):
alen = nla_len(nla)
if nla.nla_type == 0:
ofd('%s [ATTR PADDING] %d octets', prefix_whitespaces, alen)
else:
is_nested = ' NESTED' if nla_is_nested(nla) else ''
ofd('%s [ATTR %02d%s] %d octets', prefix_whitespaces, nla.nla_type, is_nested, alen)
if nla_is_nested(nla):
dump_attrs(ofd, nla_data(nla), alen, prefix + 1)
else:
dump_attr(ofd, nla, prefix)
padlen = nla_padlen(alen)
if padlen > 0:
ofd('%s [PADDING] %d octets', prefix_whitespaces, padlen)
dump_hex(ofd, bytearray_ptr(nla_data(nla), alen), padlen, prefix)
if rem.value:
ofd('%s [LEFTOVER] %d octets', prefix_whitespaces, rem)
def dump_attr(ofd, attr, prefix=0):
"""https://github.com/thom311/libnl/blob/libnl3_2_25/lib/msg.c#L862.
Positional arguments:
ofd -- function to call with arguments similar to `logging.debug`.
attr -- nlattr class instance.
Keyword arguments:
prefix -- additional number of whitespace pairs to prefix each log statement with.
"""
dump_hex(ofd, nla_data(attr), nla_len(attr), prefix)
def info_callback(msg, _):
nlh = nlmsg_hdr(msg)
gnlh = genlmsghdr(nlmsg_data(nlh))
tb = dict((i, None) for i in range(NCSI_ATTR_MAX + 1))
ret = genlmsg_parse(nlh, 0, tb, NCSI_ATTR_MAX, ncsi_policy)
if ret != 0:
reason = errmsg[abs(ret)]
print("genlmsg_parse returned {}, {}".format(ret, reason))
return ret
if not NCSI_ATTR_PACKAGE_LIST in tb:
print('No packages!')
return -1
rem = c_int()
for nla in nla_for_each_nested(tb[NCSI_ATTR_PACKAGE_LIST], rem):
ptb = dict()
ret = nla_parse_nested(ptb, NCSI_PKG_ATTR_MAX, nla,
ncsi_package_policy)
if ret < 0:
print('Failed to parse package nest')
return ret
if NCSI_PKG_ATTR_ID in ptb:
print('package {}'.format(nla_get_u32(ptb[NCSI_PKG_ATTR_ID])))
else:
print('package (with no id?)')
if NCSI_PKG_ATTR_FORCED in ptb:
print('this package is forced')
print('----------')
crem = c_int()
for cnla in nla_for_each_nested(ptb[NCSI_PKG_ATTR_CHANNEL_LIST], crem):
ctb = dict()
ret = nla_parse_nested(ctb, NCSI_CHANNEL_ATTR_MAX, cnla,
ncsi_channel_policy)
if ret < 0:
print('Failed to parse channel nest')
return ret
if NCSI_CHANNEL_ATTR_ID in ctb:
channel = nla_get_u32(ctb[NCSI_CHANNEL_ATTR_ID])
if NCSI_CHANNEL_ATTR_ACTIVE in ctb:
print('channel {} - active!'.format(channel))
else:
print('channel {}'.format(channel))
if NCSI_CHANNEL_ATTR_FORCED in ctb:
print('\tthis channel is forced')
else:
print('channel (with no id?)')
if NCSI_CHANNEL_ATTR_VERSION_MAJOR in ctb:
print('\tmajor version {}'.format(
nla_get_u32(ctb[NCSI_CHANNEL_ATTR_VERSION_MAJOR])))
if NCSI_CHANNEL_ATTR_VERSION_MINOR in ctb:
print('\tminor version {}'.format(
nla_get_u32(ctb[NCSI_CHANNEL_ATTR_VERSION_MINOR])))
if NCSI_CHANNEL_ATTR_VERSION_STR in ctb:
print('\tversion string {}'.format(
nla_get_string(ctb[NCSI_CHANNEL_ATTR_VERSION_STR])))
if NCSI_CHANNEL_ATTR_LINK_STATE in ctb:
print('\tlink state {}'.format(
nla_get_u32(ctb[NCSI_CHANNEL_ATTR_LINK_STATE])))
if NCSI_CHANNEL_ATTR_VLAN_LIST in ctb:
print('\tactive vlan ids:')
rrem = c_int()
vids = ctb[NCSI_CHANNEL_ATTR_VLAN_LIST]
vid = nlattr(nla_data(vids))
rrem.value = nla_len(vids)
while nla_ok(vid, rrem):
print('\t\t{}'.format(nla_get_u16(vid)))
vid = nla_next(vid, rrem)
return NL_SKIP
