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801.11 monitor mode for OSX #1215

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Merged
guedou merged 1 commit into from
Mar 15, 2018
Merged

801.11 monitor mode for OSX #1215

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2 changes: 2 additions & 0 deletions scapy/arch/bpf/consts.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,5 +19,7 @@
BIOCSBLEN = 0xc0044266
BIOCGBLEN = 0x40044266
BIOCSETF = 0x80104267
BIOCSDLT = 0x80044278
BIOCSHDRCMPLT = 0x80044275
BIOCGDLT = 0x4004426a
DLT_IEEE802_11_RADIO = 127
18 changes: 15 additions & 3 deletions scapy/arch/bpf/supersocket.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,9 @@
from scapy.arch.bpf.core import get_dev_bpf, attach_filter
from scapy.arch.bpf.consts import BIOCGBLEN, BIOCGDLT, BIOCGSTATS, \
BIOCIMMEDIATE, BIOCPROMISC, BIOCSBLEN, BIOCSETIF, BIOCSHDRCMPLT, \
BPF_BUFFER_LENGTH
BPF_BUFFER_LENGTH, BIOCSDLT, DLT_IEEE802_11_RADIO
from scapy.config import conf
from scapy.consts import FREEBSD, NETBSD
from scapy.consts import FREEBSD, NETBSD, DARWIN
from scapy.data import ETH_P_ALL
from scapy.error import Scapy_Exception, warning
from scapy.supersocket import SuperSocket
Expand All @@ -40,7 +40,8 @@ class _L2bpfSocket(SuperSocket):
ins = None
closed = False

def __init__(self, iface=None, type=ETH_P_ALL, promisc=None, filter=None, nofilter=0):
def __init__(self, iface=None, type=ETH_P_ALL, promisc=None, filter=None,
nofilter=0, monitor=False):

# SuperSocket mandatory variables
if promisc is None:
Expand Down Expand Up @@ -75,6 +76,17 @@ def __init__(self, iface=None, type=ETH_P_ALL, promisc=None, filter=None, nofilt
if self.promisc:
self.set_promisc(1)

# Set the interface to monitor mode
# Note: - trick from libpcap/pcap-bpf.c - monitor_mode()
# - it only works on OS X 10.5 and later
if DARWIN and monitor:
dlt_radiotap = struct.pack('I', DLT_IEEE802_11_RADIO)
try:
fcntl.ioctl(self.ins, BIOCSDLT, dlt_radiotap)
except IOError:
raise Scapy_Exception("Can't set %s into monitor mode!" %
self.iface)

# Don't block on read
try:
fcntl.ioctl(self.ins, BIOCIMMEDIATE, struct.pack('I', 1))
Expand Down