├── .gitignore ├── CHANGES.txt ├── LICENSE.txt ├── MANIFEST.in ├── README.rst ├── pyiface ├── __init__.py ├── iface.py └── ifreqioctls.py └── setup.py /.gitignore: -------------------------------------------------------------------------------- 1 | MANIFEST 2 | dist/ 3 | -------------------------------------------------------------------------------- /CHANGES.txt: -------------------------------------------------------------------------------- 1 | v0.0.1, 04.02.2013 -- Initial release 2 | 3 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . -------------------------------------------------------------------------------- /MANIFEST.in: -------------------------------------------------------------------------------- 1 | include *.txt *.rst 2 | recursive-include docs *.txt *.rst 3 | -------------------------------------------------------------------------------- /README.rst: -------------------------------------------------------------------------------- 1 | Python access network interfaces 2 | ================================ 3 | 4 | General information 5 | ------------------- 6 | 7 | Pyiface is a package that exposes the network interfaces of the operating 8 | system in an easy to use and transparent way. Typical usage looks like this: 9 | 10 | .. code-block:: python 11 | 12 | #!/usr/bin/env python 13 | 14 | import pyiface 15 | from pyiface.ifreqioctls import IFF_UP 16 | 17 | # Get all available network interfaces 18 | allIfaces = pyiface.getIfaces() 19 | for iface in allIfaces: 20 | print(iface) 21 | 22 | # Get a specific interface by name 23 | eth0 = pyiface.Interface(name='eth0') 24 | 25 | # view eth0 info 26 | print(eth0) 27 | 28 | # bring eth0 up 29 | eth0.flags = eth0.flags | IFF_UP 30 | 31 | # set ipv4 address of the interface 32 | eth0.addr = (socket.AF_INET, '1.2.3.4') 33 | 34 | # set ipv6 address of the interface 35 | eth0.addr = (socket.AF_INET6, '2001:0db8:85a3:0000:0000:8a2e:0370:7334') 36 | 37 | 38 | Installation 39 | ------------ 40 | 41 | To install the package simply call `setup.py` with the install option. 42 | 43 | Links 44 | ----- 45 | 46 | For more information go to my `blogspot `_. 47 | Or browse the `github `_ repository. 48 | -------------------------------------------------------------------------------- /pyiface/__init__.py: -------------------------------------------------------------------------------- 1 | from .iface import Interface, getIfaces 2 | from .ifreqioctls import * 3 | 4 | __all__ = ['Interface', 'getIfaces'] 5 | 6 | ll = dir() 7 | for l in ll: 8 | if l.startswith('IFF_'): 9 | __all__.append(l) 10 | if l.startswith('SIOC'): 11 | __all__.append(l) 12 | 13 | -------------------------------------------------------------------------------- /pyiface/iface.py: -------------------------------------------------------------------------------- 1 | from __future__ import absolute_import 2 | import sys 3 | import fcntl 4 | import struct 5 | import socket 6 | 7 | from ctypes import * 8 | from .ifreqioctls import * 9 | from binascii import hexlify 10 | from os import listdir 11 | 12 | flags2str = { 13 | IFF_UP: 'Interface is up.', 14 | IFF_BROADCAST: 'Broadcast address valid.', 15 | IFF_DEBUG: 'Turn on debugging.', 16 | IFF_LOOPBACK: 'Is a loopback net.', 17 | IFF_POINTOPOINT: 'Interface is point-to-point link.', 18 | IFF_NOTRAILERS: 'Avoid use of trailers.', 19 | IFF_RUNNING: 'Resources allocated.', 20 | IFF_NOARP: 'No address resolution protocol.', 21 | IFF_PROMISC: 'Receive all packets.', 22 | IFF_ALLMULTI: 'Receive all multicast packets.', 23 | IFF_MASTER: 'Master of a load balancer.', 24 | IFF_SLAVE: 'Slave of a load balancer.', 25 | IFF_MULTICAST: 'Supports multicast.', 26 | IFF_PORTSEL: 'Can set media type.', 27 | IFF_AUTOMEDIA: 'Auto media select active.', 28 | IFF_DYNAMIC: 'Dialup device with changing addresses.' 29 | } 30 | 31 | 32 | def flagsToStr(fin): 33 | ret = '' 34 | for k in flags2str.keys(): 35 | if fin & k: 36 | ret = ret + '\t' + flags2str[k] + '\n' 37 | 38 | return ret 39 | 40 | 41 | class sockaddr_gen(Structure): 42 | _fields_ = [ 43 | ("sa_family", c_uint16), 44 | ("sa_data", (c_uint8 * 22)) 45 | ] 46 | 47 | 48 | # AF_INET / IPv4 49 | class in_addr(Structure): 50 | _pack_ = 1 51 | _fields_ = [ 52 | ("s_addr", c_uint32), 53 | ] 54 | 55 | 56 | class sockaddr_in(Structure): 57 | _pack_ = 1 58 | _fields_ = [ 59 | ("sin_family", c_ushort), 60 | ("sin_port", c_ushort), 61 | ("sin_addr", in_addr), 62 | ("sin_zero", (c_uint8 * 16)), # padding 63 | ] 64 | 65 | 66 | # AF_INET6 / IPv6 67 | class in6_u(Union): 68 | _pack_ = 1 69 | _fields_ = [ 70 | ("u6_addr8", (c_uint8 * 16)), 71 | ("u6_addr16", (c_uint16 * 8)), 72 | ("u6_addr32", (c_uint32 * 4)) 73 | ] 74 | 75 | 76 | class in6_addr(Structure): 77 | _pack_ = 1 78 | _fields_ = [ 79 | ("in6_u", in6_u), 80 | ] 81 | 82 | 83 | class sockaddr_in6(Structure): 84 | _pack_ = 1 85 | _fields_ = [ 86 | ("sin6_family", c_short), 87 | ("sin6_port", c_ushort), 88 | ("sin6_flowinfo", c_uint32), 89 | ("sin6_addr", in6_addr), 90 | ("sin6_scope_id", c_uint32), 91 | ] 92 | 93 | 94 | # AF_LINK / BSD|OSX 95 | class sockaddr_dl(Structure): 96 | _fields_ = [ 97 | ("sdl_len", c_uint8), 98 | ("sdl_family", c_uint8), 99 | ("sdl_index", c_uint16), 100 | ("sdl_type", c_uint8), 101 | ("sdl_nlen", c_uint8), 102 | ("sdl_alen", c_uint8), 103 | ("sdl_slen", c_uint8) 104 | # ("sdl_data", (c_uint8 * 46) ) 105 | ] 106 | 107 | 108 | class sockaddr(Union): 109 | _pack_ = 1 110 | _fields_ = [ 111 | ('gen', sockaddr_gen), 112 | ('in4', sockaddr_in), 113 | ('in6', sockaddr_in6) 114 | ] 115 | 116 | 117 | class ifmap(Structure): 118 | _pack_ = 1 119 | _fields_ = [ 120 | ('mem_start', c_ulong), 121 | ('mem_end', c_ulong), 122 | ('base_addr', c_ushort), 123 | ('irq', c_ubyte), 124 | ('dma', c_ubyte), 125 | ('port', c_ubyte) 126 | ] 127 | 128 | 129 | IFNAMSIZ = 16 130 | IFHWADDRLEN = 6 131 | 132 | 133 | class ifr_data(Union): 134 | _pack_ = 1 135 | _fields_ = [ 136 | ('ifr_addr', sockaddr), 137 | ('ifr_dstaddr', sockaddr), 138 | ('ifr_broadaddr', sockaddr), 139 | ('ifr_netmask', sockaddr), 140 | ('ifr_hwaddr', sockaddr), 141 | ('ifr_flags', c_short), 142 | ('ifr_ifindex', c_int), 143 | ('ifr_ifqlen', c_int), 144 | ('ifr_metric', c_int), 145 | ('ifr_mtu', c_int), 146 | ('ifr_map', ifmap), 147 | ('ifr_slave', (c_ubyte * IFNAMSIZ)), 148 | ('ifr_newname', (c_ubyte * IFNAMSIZ)), 149 | ('ifr_data', c_void_p) 150 | ] 151 | 152 | 153 | class ifreq(Structure): 154 | _pack_ = 1 155 | _fields_ = [ 156 | ('ifr_name', (c_ubyte * IFNAMSIZ)), 157 | ('data', ifr_data) 158 | ] 159 | 160 | 161 | class in6_ifreq(Structure): 162 | _pack_ = 1 163 | _fields_ = [ 164 | ('addr', in6_addr), 165 | ('prefixlen', c_uint32), 166 | ('ifindex', c_int) 167 | ] 168 | 169 | 170 | class Interface(object): 171 | """ 172 | Represents a network interface. 173 | 174 | Almost all interesting attributes are exported in the form 175 | of a variable. You can get or set this variable. For example: 176 | 177 | ifeth0 = Interface("eth0") 178 | print ifeth0.addr # will print the current address 179 | ... 180 | or 181 | ... 182 | ifeth0.addr = (AF_INET, '1.2.3.4') # will set a new address 183 | 184 | """ 185 | 186 | def __init__(self, idx=1, name=None): 187 | self._af_mode = socket.AF_INET 188 | 189 | self._index = idx 190 | self._name = name 191 | 192 | # Get the name of the interface 193 | if self._name is None: 194 | self._name = self.name 195 | else: 196 | self._name = (c_ubyte * IFNAMSIZ)(*bytearray(self._name.encode('utf8'))) 197 | self._index = self.index 198 | 199 | def __newIfreqWithName(self): 200 | ifr = ifreq() 201 | ifr.ifr_name = (c_ubyte * IFNAMSIZ)(*bytearray(self._name)) 202 | return ifr 203 | 204 | def __doIoctl(self, ifr, SIOC, mutate=True): 205 | try: 206 | skt = socket.socket(self._af_mode, socket.SOCK_DGRAM, 0) 207 | fcntl.fcntl(skt, 208 | fcntl.F_SETFD, 209 | fcntl.fcntl(skt, fcntl.F_GETFD) | fcntl.FD_CLOEXEC) 210 | fcntl.ioctl(skt, SIOC, ifr, mutate) 211 | except IOError as ioException: 212 | if ioException.errno == 99 or ioException.errno == 17: 213 | pass 214 | else: 215 | raise ioException 216 | finally: 217 | if skt: 218 | skt.close() 219 | 220 | def __getSimple(self, ioctl, elem): 221 | ifr = self.__newIfreqWithName() 222 | self.__doIoctl(ifr, ioctl) 223 | 224 | elem = elem.split('.') 225 | tmpVal = ifr 226 | for curElem in elem: 227 | tmpVal = getattr(tmpVal, curElem) 228 | 229 | return tmpVal 230 | 231 | def __setSimple(self, ioctl, elem, val): 232 | ifr = self.__newIfreqWithName() 233 | 234 | elem = elem.split('.') 235 | tmpVal = ifr 236 | 237 | for curElem in elem[:-1]: 238 | tmpVal = getattr(tmpVal, curElem) 239 | 240 | setattr(tmpVal, elem[-1], val) 241 | self.__doIoctl(ifr, ioctl) 242 | 243 | @property 244 | def index(self): 245 | ifr = self.__newIfreqWithName() 246 | self.__doIoctl(ifr, SIOCGIFINDEX) 247 | self._index = ifr.data.ifr_ifindex 248 | return self._index 249 | 250 | @property 251 | def name(self): 252 | ifr = ifreq() 253 | ifr.data.ifr_ifindex = self._index 254 | self.__doIoctl(ifr, SIOCGIFNAME) 255 | self._name = ifr.ifr_name 256 | return string_at(self._name).decode('utf8', 'backslashreplace') 257 | 258 | @name.setter 259 | def name(self, val): 260 | ifr = ifreq() 261 | ifr.ifr_name = self._name 262 | ifr.data.ifr_newname = val 263 | self.__doIoctl(ifr, SIOCGIFNAME) 264 | self._name = val 265 | 266 | @property 267 | def flags(self): 268 | return self.__getSimple(SIOCGIFFLAGS, 'data.ifr_flags') 269 | 270 | @flags.setter 271 | def flags(self, val): 272 | self.__setSimple(SIOCSIFFLAGS, 'data.ifr_flags', val) 273 | 274 | @property 275 | def ifqlen(self): 276 | return self.__getSimple(SIOCGIFTXQLEN, 'data.ifr_ifqlen') 277 | 278 | @ifqlen.setter 279 | def ifqlen(self, val): 280 | self.__setSimple(SIOCSIFTXQLEN, 'data.ifr_ifqlen', val) 281 | 282 | @property 283 | def metric(self): 284 | return self.__getSimple(SIOCGIFMETRIC, 'data.ifr_metric') 285 | 286 | @metric.setter 287 | def metric(self, val): 288 | self.__getSimple(SIOCSIFMETRIC, 'data.ifr_metric', val) 289 | 290 | @property 291 | def mtu(self): 292 | return self.__getSimple(SIOCGIFMTU, 'data.ifr_mtu') 293 | 294 | @mtu.setter 295 | def mtu(self, val): 296 | self.__getSimple(SIOCSIFMTU, 'data.ifr_mtu', val) 297 | 298 | @property 299 | def hwaddr(self): 300 | ifr = self.__newIfreqWithName() 301 | self.__doIoctl(ifr, SIOCGIFHWADDR) 302 | hw = ifr.data.ifr_hwaddr.gen.sa_data 303 | 304 | self._hwaddr = '' 305 | for i in hw[:IFHWADDRLEN]: 306 | self._hwaddr = self._hwaddr + '%.2X:' % i 307 | 308 | return self._hwaddr 309 | 310 | @hwaddr.setter 311 | def hwaddr(self, val): 312 | ifr = self.__newIfreqWithName() 313 | ifr.data.ifr_hwaddr.sin_addr.s_addr = val 314 | self.__doIoctl(ifr, SIOCSIFHWADDR) 315 | 316 | @property 317 | def addr(self): 318 | ifr = self.__newIfreqWithName() 319 | self.__doIoctl(ifr, SIOCGIFADDR) 320 | return ifr.data.ifr_addr 321 | 322 | @addr.setter 323 | def addr(self, val): 324 | ifr = self.__newIfreqWithName() 325 | ifr.data.ifr_addr = self.__sockaddrFromTuple(val) 326 | 327 | if self._af_mode == socket.AF_INET6: 328 | ifr6 = in6_ifreq() 329 | ifr6.ifindex = self.index 330 | ifr6.prefixlen = 64 331 | ifr6.addr = ifr.data.ifr_addr.in6.sin6_addr 332 | self.__doIoctl(ifr6, SIOCSIFADDR, False) 333 | else: 334 | self.__doIoctl(ifr, SIOCSIFADDR, False) 335 | 336 | self._af_mode = socket.AF_INET 337 | 338 | @property 339 | def broadaddr(self): 340 | ifr = self.__newIfreqWithName() 341 | self.__doIoctl(ifr, SIOCGIFBRDADDR) 342 | return ifr.data.ifr_broadaddr 343 | 344 | @broadaddr.setter 345 | def broadaddr(self, val): 346 | ifr = self.__newIfreqWithName() 347 | ifr.data.ifr_broadaddr = self.__sockaddrFromTuple(val) 348 | self.__doIoctl(ifr, SIOCSIFBRDADDR) 349 | 350 | @property 351 | def netmask(self): 352 | ifr = self.__newIfreqWithName() 353 | self.__doIoctl(ifr, SIOCGIFNETMASK) 354 | return ifr.data.ifr_netmask 355 | 356 | @netmask.setter 357 | def netmask(self, val): 358 | ifr = self.__newIfreqWithName() 359 | ifr.data.ifr_netmask = self.__sockaddrFromTuple(val) 360 | self.__doIoctl(ifr, SIOCSIFNETMASK, False) 361 | 362 | @staticmethod 363 | def __getSinAddr(sockaddr): 364 | if sockaddr.gen.sa_family == socket.AF_INET: 365 | return sockaddr.in4.sin_addr.s_addr 366 | if sockaddr.gen.sa_family == socket.AF_INET6: 367 | return sockaddr.in6.sin6_addr.in6_u 368 | return 0 369 | 370 | def __sockaddrFromTuple(self, inVal): 371 | if inVal[0] == socket.AF_INET: 372 | self._af_mode = socket.AF_INET 373 | sin4 = sockaddr() 374 | 375 | sin4.in4.sin_family = inVal[0] 376 | sin4.in4.sin_addr.s_addr = struct.unpack('