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//usr/lib/python3.6/site-packages/pyroute2/protocols/__init__.py
import struct from socket import inet_ntop from socket import inet_pton from socket import AF_INET from pyroute2.common import basestring # # IEEE = 802.3 Ethernet magic constants. The frame sizes omit # the preamble and FCS/CRC (frame check sequence). # ETH_ALEN = 6 # Octets in one ethernet addr ETH_HLEN = 14 # Total octets in header. ETH_ZLEN = 60 # Min. octets in frame sans FCS ETH_DATA_LEN = 1500 # Max. octets in payload ETH_FRAME_LEN = 1514 # Max. octets in frame sans FCS ETH_FCS_LEN = 4 # Octets in the FCS # # These are the defined Ethernet Protocol ID's. # ETH_P_LOOP = 0x0060 # Ethernet Loopback packet ETH_P_PUP = 0x0200 # Xerox PUP packet ETH_P_PUPAT = 0x0201 # Xerox PUP Addr Trans packet ETH_P_IP = 0x0800 # Internet Protocol packet ETH_P_X25 = 0x0805 # CCITT X.25 ETH_P_ARP = 0x0806 # Address Resolution packet ETH_P_BPQ = 0x08FF # G8BPQ AX.25 Ethernet Packet # ^^^ [ NOT AN OFFICIALLY REGISTERED ID ] ETH_P_IEEEPUP = 0x0a00 # Xerox IEEE802.3 PUP packet ETH_P_IEEEPUPAT = 0x0a01 # Xerox IEEE802.3 PUP Addr Trans packet ETH_P_DEC = 0x6000 # DEC Assigned proto ETH_P_DNA_DL = 0x6001 # DEC DNA Dump/Load ETH_P_DNA_RC = 0x6002 # DEC DNA Remote Console ETH_P_DNA_RT = 0x6003 # DEC DNA Routing ETH_P_LAT = 0x6004 # DEC LAT ETH_P_DIAG = 0x6005 # DEC Diagnostics ETH_P_CUST = 0x6006 # DEC Customer use ETH_P_SCA = 0x6007 # DEC Systems Comms Arch ETH_P_TEB = 0x6558 # Trans Ether Bridging ETH_P_RARP = 0x8035 # Reverse Addr Res packet ETH_P_ATALK = 0x809B # Appletalk DDP ETH_P_AARP = 0x80F3 # Appletalk AARP ETH_P_8021Q = 0x8100 # = 802.1Q VLAN Extended Header ETH_P_IPX = 0x8137 # IPX over DIX ETH_P_IPV6 = 0x86DD # IPv6 over bluebook ETH_P_PAUSE = 0x8808 # IEEE Pause frames. See = 802.3 = 31B ETH_P_SLOW = 0x8809 # Slow Protocol. See = 802.3ad = 43B ETH_P_WCCP = 0x883E # Web-cache coordination protocol # defined in draft-wilson-wrec-wccp-v2-00.txt ETH_P_PPP_DISC = 0x8863 # PPPoE discovery messages ETH_P_PPP_SES = 0x8864 # PPPoE session messages ETH_P_MPLS_UC = 0x8847 # MPLS Unicast traffic ETH_P_MPLS_MC = 0x8848 # MPLS Multicast traffic ETH_P_ATMMPOA = 0x884c # MultiProtocol Over ATM ETH_P_LINK_CTL = 0x886c # HPNA, wlan link local tunnel ETH_P_ATMFATE = 0x8884 # Frame-based ATM Transport over Ethernet ETH_P_PAE = 0x888E # Port Access Entity (IEEE = 802.1X) ETH_P_AOE = 0x88A2 # ATA over Ethernet ETH_P_8021AD = 0x88A8 # = 802.1ad Service VLAN ETH_P_802_EX1 = 0x88B5 # = 802.1 Local Experimental = 1. ETH_P_TIPC = 0x88CA # TIPC ETH_P_8021AH = 0x88E7 # = 802.1ah Backbone Service Tag ETH_P_1588 = 0x88F7 # IEEE = 1588 Timesync ETH_P_FCOE = 0x8906 # Fibre Channel over Ethernet ETH_P_TDLS = 0x890D # TDLS ETH_P_FIP = 0x8914 # FCoE Initialization Protocol ETH_P_QINQ1 = 0x9100 # deprecated QinQ VLAN # ^^^ [ NOT AN OFFICIALLY REGISTERED ID ] ETH_P_QINQ2 = 0x9200 # deprecated QinQ VLAN # ^^^ [ NOT AN OFFICIALLY REGISTERED ID ] ETH_P_QINQ3 = 0x9300 # deprecated QinQ VLAN # ^^^ [ NOT AN OFFICIALLY REGISTERED ID ] ETH_P_EDSA = 0xDADA # Ethertype DSA # ^^^ [ NOT AN OFFICIALLY REGISTERED ID ] ETH_P_AF_IUCV = 0xFBFB # IBM af_iucv # ^^^ [ NOT AN OFFICIALLY REGISTERED ID ] # # Non DIX types. Won't clash for = 1500 types. # ETH_P_802_3 = 0x0001 # Dummy type for = 802.3 frames ETH_P_AX25 = 0x0002 # Dummy protocol id for AX.25 ETH_P_ALL = 0x0003 # Every packet (be careful!!!) ETH_P_802_2 = 0x0004 # = 802.2 frames ETH_P_SNAP = 0x0005 # Internal only ETH_P_DDCMP = 0x0006 # DEC DDCMP: Internal only ETH_P_WAN_PPP = 0x0007 # Dummy type for WAN PPP frames*/ ETH_P_PPP_MP = 0x0008 # Dummy type for PPP MP frames ETH_P_LOCALTALK = 0x0009 # Localtalk pseudo type ETH_P_CAN = 0x000C # Controller Area Network ETH_P_PPPTALK = 0x0010 # Dummy type for Atalk over PPP*/ ETH_P_TR_802_2 = 0x0011 # = 802.2 frames ETH_P_MOBITEX = 0x0015 # Mobitex (kaz@cafe.net) ETH_P_CONTROL = 0x0016 # Card specific control frames ETH_P_IRDA = 0x0017 # Linux-IrDA ETH_P_ECONET = 0x0018 # Acorn Econet ETH_P_HDLC = 0x0019 # HDLC frames ETH_P_ARCNET = 0x001A # = 1A for ArcNet :-) ETH_P_DSA = 0x001B # Distributed Switch Arch. ETH_P_TRAILER = 0x001C # Trailer switch tagging ETH_P_PHONET = 0x00F5 # Nokia Phonet frames ETH_P_IEEE802154 = 0x00F6 # IEEE802.15.4 frame ETH_P_CAIF = 0x00F7 # ST-Ericsson CAIF protocol class msg(dict): buf = None data_len = None fields = () _fields_names = () types = {'uint8': 'B', 'uint16': 'H', 'uint32': 'I', 'be16': '>H', 'ip4addr': {'format': '4s', 'decode': lambda x: inet_ntop(AF_INET, x), 'encode': lambda x: [inet_pton(AF_INET, x)]}, 'l2addr': {'format': '6B', 'decode': lambda x: ':'.join(['%x' % i for i in x]), 'encode': lambda x: [int(i, 16) for i in x.split(':')]}, 'l2paddr': {'format': '6B10s', 'decode': lambda x: ':'.join(['%x' % i for i in x[:6]]), 'encode': lambda x: [int(i, 16) for i in x.split(':')] + [10 * b'\x00']}} def __init__(self, content=None, buf=b'', offset=0, value=None): content = content or {} dict.__init__(self, content) self.buf = buf self.offset = offset self.value = value self._register_fields() def _register_fields(self): self._fields_names = tuple([x[0] for x in self.fields]) def _get_routine(self, mode, fmt): fmt = self.types.get(fmt, fmt) if isinstance(fmt, dict): return (fmt['format'], fmt.get(mode, lambda x: x)) else: return (fmt, lambda x: x) def reset(self): self.buf = b'' def decode(self): self._register_fields() for field in self.fields: name, sfmt = field[:2] fmt, routine = self._get_routine('decode', sfmt) size = struct.calcsize(fmt) value = struct.unpack(fmt, self.buf[self.offset: self.offset + size]) if len(value) == 1: value = value[0] if isinstance(value, basestring) and sfmt[-1] == 's': value = value[:value.find(b'\x00')] self[name] = routine(value) self.offset += size return self def encode(self): self._register_fields() for field in self.fields: name, fmt = field[:2] default = b'\x00' if len(field) <= 2 else field[2] fmt, routine = self._get_routine('encode', fmt) # special case: string if fmt == 'string': self.buf += routine(self[name])[0] else: size = struct.calcsize(fmt) if self[name] is None: if not isinstance(default, basestring): self.buf += struct.pack(fmt, default) else: self.buf += default * (size // len(default)) else: value = routine(self[name]) if not isinstance(value, (set, tuple, list)): value = [value] self.buf += struct.pack(fmt, *value) return self def __getitem__(self, key): try: return dict.__getitem__(self, key) except KeyError: if key in self._fields_names: return None raise class ethmsg(msg): fields = (('dst', 'l2addr'), ('src', 'l2addr'), ('type', 'be16')) class ip6msg(msg): fields = (('version', 'uint8', 6 << 4), ('_flow0', 'uint8'), ('_flow1', 'uint8'), ('_flow2', 'uint8'), ('plen', 'uin16'), ('next_header', 'uint8'), ('hop_limit', 'uint8'), ('src', 'ip6addr'), ('dst', 'ip6addr')) class ip4msg(msg): fields = (('verlen', 'uint8', 0x45), ('dsf', 'uint8'), ('len', 'be16'), ('id', 'be16'), ('flags', 'uint16'), ('ttl', 'uint8', 128), ('proto', 'uint8'), ('csum', 'be16'), ('src', 'ip4addr'), ('dst', 'ip4addr')) class udp4_pseudo_header(msg): fields = (('src', 'ip4addr'), ('dst', 'ip4addr'), ('pad', 'uint8'), ('proto', 'uint8', 17), ('len', 'be16')) class udpmsg(msg): fields = (('sport', 'be16'), ('dport', 'be16'), ('len', 'be16'), ('csum', 'be16'))
