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from pyroute2.common import map_namespace
from pyroute2.netlink import nla, nlmsg
# neighbor cache entry flags
NTF_USE = 0x01
NTF_SELF = 0x02
NTF_MASTER = 0x04
NTF_PROXY = 0x08
NTF_EXT_LEARNED = 0x10
NTF_ROUTER = 0x80
# neighbor cache entry states
NUD_INCOMPLETE = 0x01
NUD_REACHABLE = 0x02
NUD_STALE = 0x04
NUD_DELAY = 0x08
NUD_PROBE = 0x10
NUD_FAILED = 0x20
# dummy states
NUD_NOARP = 0x40
NUD_PERMANENT = 0x80
NUD_NONE = 0x00
(NTF_NAMES, NTF_VALUES) = map_namespace('NTF_', globals())
(NUD_NAMES, NUD_VALUES) = map_namespace('NUD_', globals())
flags = dict([(x[0][4:].lower(), x[1]) for x in NTF_NAMES.items()])
states = dict([(x[0][4:].lower(), x[1]) for x in NUD_NAMES.items()])
def states_a2n(s):
# parse state string
ss = s.split(',')
ret = 0
for state in ss:
state = state.upper()
if not state.startswith('NUD_'):
state = 'NUD_' + state
ret |= NUD_NAMES[state]
return ret
class ndmsg(nlmsg):
'''
ARP cache update message
C structure::
struct ndmsg {
unsigned char ndm_family;
int ndm_ifindex; /* Interface index */
__u16 ndm_state; /* State */
__u8 ndm_flags; /* Flags */
__u8 ndm_type;
};
Cache info structure::
struct nda_cacheinfo {
__u32 ndm_confirmed;
__u32 ndm_used;
__u32 ndm_updated;
__u32 ndm_refcnt;
};
'''
__slots__ = ()
prefix = 'NDA_'
fields = (
('family', 'B'),
('__pad', '3x'),
('ifindex', 'i'),
('state', 'H'),
('flags', 'B'),
('ndm_type', 'B'),
)
# Please note, that nla_map creates implicit
# enumeration. In this case it will be:
#
# NDA_UNSPEC = 0
# NDA_DST = 1
# NDA_LLADDR = 2
# NDA_CACHEINFO = 3
# NDA_PROBES = 4
# ...
#
nla_map = (
('NDA_UNSPEC', 'none'),
('NDA_DST', 'ipaddr'),
('NDA_LLADDR', 'lladdr'),
('NDA_CACHEINFO', 'cacheinfo'),
('NDA_PROBES', 'uint32'),
('NDA_VLAN', 'uint16'),
('NDA_PORT', 'be16'),
('NDA_VNI', 'uint32'),
('NDA_IFINDEX', 'uint32'),
('NDA_MASTER', 'uint32'),
('NDA_LINK_NETNSID', 'uint32'),
('NDA_SRC_VNI', 'uint32'),
)
class cacheinfo(nla):
__slots__ = ()
fields = (
('ndm_confirmed', 'I'),
('ndm_used', 'I'),
('ndm_updated', 'I'),
('ndm_refcnt', 'I'),
)