(self,
iface=None, # type: Optional[_GlobInterfaceType]
ttl=128, # type: int
ipv6=False, # type: bool
promisc=True, # type: bool
**kwargs # type: Any
)
| 68 | __slots__ = ["promisc", "cls", "ipv6"] |
| 69 | |
| 70 | def __init__(self, |
| 71 | iface=None, # type: Optional[_GlobInterfaceType] |
| 72 | ttl=128, # type: int |
| 73 | ipv6=False, # type: bool |
| 74 | promisc=True, # type: bool |
| 75 | **kwargs # type: Any |
| 76 | ): |
| 77 | # type: (...) -> None |
| 78 | from scapy.layers.inet import IP |
| 79 | from scapy.layers.inet6 import IPv6 |
| 80 | for kwarg in kwargs: |
| 81 | log_runtime.warning("Dropping unsupported option: %s" % kwarg) |
| 82 | self.iface = iface and resolve_iface(iface) or conf.iface |
| 83 | if not self.iface.is_valid(): |
| 84 | log_runtime.warning("Interface is invalid. This will fail.") |
| 85 | af = socket.AF_INET6 if ipv6 else socket.AF_INET |
| 86 | self.ipv6 = ipv6 |
| 87 | self.cls = IPv6 if ipv6 else IP |
| 88 | # Promisc |
| 89 | if promisc is None: |
| 90 | promisc = conf.sniff_promisc |
| 91 | self.promisc = promisc |
| 92 | # Notes: |
| 93 | # - IPPROTO_RAW is broken. We don't use it. |
| 94 | # - IPPROTO_IPV6 exists in MSDN docs, but using it will result in |
| 95 | # no packets being received. Same for its options (IPV6_HDRINCL...) |
| 96 | # However, using IPPROTO_IP with AF_INET6 will still receive |
| 97 | # the IPv6 packets |
| 98 | try: |
| 99 | # Listening on AF_INET6 IPPROTO_IPV6 is broken. Use IPPROTO_IP |
| 100 | self.outs = self.ins = socket.socket( |
| 101 | af, |
| 102 | socket.SOCK_RAW, |
| 103 | socket.IPPROTO_IP, |
| 104 | ) |
| 105 | except OSError as e: |
| 106 | if e.errno == 13: |
| 107 | raise OSError("Windows native L3 Raw sockets are only " |
| 108 | "usable as administrator ! " |
| 109 | "Please install Npcap to workaround !") |
| 110 | raise |
| 111 | self.ins.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) |
| 112 | self.ins.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 2**30) |
| 113 | self.outs.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 2**30) |
| 114 | # set TTL |
| 115 | self.ins.setsockopt(socket.IPPROTO_IP, socket.IP_TTL, ttl) |
| 116 | # Get as much data as possible: reduce what is cropped |
| 117 | if ipv6: |
| 118 | # IPV6_HDRINCL is broken. Use IP_HDRINCL even on IPv6 |
| 119 | self.outs.setsockopt(socket.IPPROTO_IPV6, socket.IP_HDRINCL, 1) |
| 120 | try: # Not all Windows versions |
| 121 | self.ins.setsockopt(socket.IPPROTO_IPV6, |
| 122 | socket.IPV6_RECVTCLASS, 1) |
| 123 | self.ins.setsockopt(socket.IPPROTO_IPV6, |
| 124 | socket.IPV6_HOPLIMIT, 1) |
| 125 | except (OSError, socket.error): |
| 126 | pass |
| 127 | else: |
no test coverage detected