You've already forked mariadb-columnstore-engine
mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-11-03 17:13:17 +03:00
115 lines
3.1 KiB
Python
115 lines
3.1 KiB
Python
# Based on https://gist.github.com/provegard/1536682, which was
|
|
# Based on getifaddrs.py from pydlnadms [http://code.google.com/p/pydlnadms/].
|
|
# Only tested on Linux!
|
|
# WARNING: Not working on Mac OS (tested on 10.12 Sierra)
|
|
# TODO: move to psutil lib
|
|
|
|
|
|
from socket import AF_INET, AF_INET6, inet_ntop
|
|
from ctypes import (
|
|
Structure, Union, POINTER,
|
|
pointer, get_errno, cast,
|
|
c_ushort, c_byte, c_void_p, c_char_p, c_uint, c_int, c_uint16, c_uint32
|
|
)
|
|
import ctypes.util
|
|
import ctypes
|
|
|
|
|
|
class struct_sockaddr(Structure):
|
|
_fields_ = [
|
|
('sa_family', c_ushort),
|
|
('sa_data', c_byte * 14),]
|
|
|
|
|
|
class struct_sockaddr_in(Structure):
|
|
_fields_ = [
|
|
('sin_family', c_ushort),
|
|
('sin_port', c_uint16),
|
|
('sin_addr', c_byte * 4)]
|
|
|
|
|
|
class struct_sockaddr_in6(Structure):
|
|
_fields_ = [
|
|
('sin6_family', c_ushort),
|
|
('sin6_port', c_uint16),
|
|
('sin6_flowinfo', c_uint32),
|
|
('sin6_addr', c_byte * 16),
|
|
('sin6_scope_id', c_uint32)]
|
|
|
|
|
|
class union_ifa_ifu(Union):
|
|
_fields_ = [
|
|
('ifu_broadaddr', POINTER(struct_sockaddr)),
|
|
('ifu_dstaddr', POINTER(struct_sockaddr)),]
|
|
|
|
|
|
class struct_ifaddrs(Structure):
|
|
pass
|
|
struct_ifaddrs._fields_ = [
|
|
('ifa_next', POINTER(struct_ifaddrs)),
|
|
('ifa_name', c_char_p),
|
|
('ifa_flags', c_uint),
|
|
('ifa_addr', POINTER(struct_sockaddr)),
|
|
('ifa_netmask', POINTER(struct_sockaddr)),
|
|
('ifa_ifu', union_ifa_ifu),
|
|
('ifa_data', c_void_p),]
|
|
|
|
libc = ctypes.CDLL(ctypes.util.find_library('c'))
|
|
|
|
|
|
def ifap_iter(ifap):
|
|
ifa = ifap.contents
|
|
while True:
|
|
yield ifa
|
|
if not ifa.ifa_next:
|
|
break
|
|
ifa = ifa.ifa_next.contents
|
|
|
|
|
|
def getfamaddr(sa):
|
|
family = sa.sa_family
|
|
addr = None
|
|
if family == AF_INET:
|
|
sa = cast(pointer(sa), POINTER(struct_sockaddr_in)).contents
|
|
addr = inet_ntop(family, sa.sin_addr)
|
|
elif family == AF_INET6:
|
|
sa = cast(pointer(sa), POINTER(struct_sockaddr_in6)).contents
|
|
addr = inet_ntop(family, sa.sin6_addr)
|
|
return family, addr
|
|
|
|
|
|
class NetworkInterface(object):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
self.index = libc.if_nametoindex(name)
|
|
self.addresses = {}
|
|
|
|
def __str__(self):
|
|
return "%s [index=%d, IPv4=%s, IPv6=%s]" % (
|
|
self.name, self.index,
|
|
self.addresses.get(AF_INET),
|
|
self.addresses.get(AF_INET6))
|
|
|
|
|
|
def get_network_interfaces():
|
|
ifap = POINTER(struct_ifaddrs)()
|
|
result = libc.getifaddrs(pointer(ifap))
|
|
if result != 0:
|
|
raise OSError(get_errno())
|
|
del result
|
|
try:
|
|
retval = {}
|
|
for ifa in ifap_iter(ifap):
|
|
name = ifa.ifa_name.decode("UTF-8")
|
|
i = retval.get(name)
|
|
if not i:
|
|
i = retval[name] = NetworkInterface(name)
|
|
family, addr = getfamaddr(ifa.ifa_addr.contents)
|
|
if addr:
|
|
if family not in i.addresses:
|
|
i.addresses[family] = list()
|
|
i.addresses[family].append(addr)
|
|
return retval.values()
|
|
finally:
|
|
libc.freeifaddrs(ifap)
|