def attach_filter(s, bpf_filter, iface):
# XXX We generate the filter on the interface conf.iface
# because tcpdump open the "any" interface and ppp interfaces
# in cooked mode. As we use them in raw mode, the filter will not
# work... one solution could be to use "any" interface and translate
# the filter from cooked mode to raw mode
# mode
if not TCPDUMP:
return
try:
f = os.popen("%s -i %s -ddd -s %d '%s'" % (
conf.prog.tcpdump,
conf.iface if iface is None else iface,
MTU,
bpf_filter,
))
except OSError:
log_interactive.warning("Failed to attach filter.",
exc_info=True)
return
lines = f.readlines()
ret = f.close()
if ret:
log_interactive.warning(
"Failed to attach filter: tcpdump returned %d", ret
)
return
bp = get_bpf_pointer(lines)
s.setsockopt(socket.SOL_SOCKET, SO_ATTACH_FILTER, bp)
def attach_filter(s, bpf_filter, iface):
# XXX We generate the filter on the interface conf.iface
# because tcpdump open the "any" interface and ppp interfaces
# in cooked mode. As we use them in raw mode, the filter will not
# work... one solution could be to use "any" interface and translate
# the filter from cooked mode to raw mode
# mode
if not TCPDUMP:
return
try:
f = os.popen("%s -i %s -ddd -s %d '%s'" % (
conf.prog.tcpdump,
conf.iface if iface is None else iface,
MTU,
bpf_filter,
))
except OSError:
log_interactive.warning("Failed to attach filter.",
exc_info=True)
return
lines = f.readlines()
ret = f.close()
if ret:
log_interactive.warning(
"Failed to attach filter: tcpdump returned %d", ret
)
return
bp = get_bpf_pointer(lines)
s.setsockopt(socket.SOL_SOCKET, SO_ATTACH_FILTER, bp)
def attach_filter(fd, iface, bpf_filter_string):
"""Attach a BPF filter to the BPF file descriptor"""
# Retrieve the BPF byte code in decimal
command = "%s -i %s -ddd -s 1600 '%s'" % (conf.prog.tcpdump, iface, bpf_filter_string)
try:
f = os.popen(command)
except OSError as msg:
raise Scapy_Exception("Failed to execute tcpdump: (%s)" % msg)
# Convert the byte code to a BPF program structure
lines = f.readlines()
if lines == []:
raise Scapy_Exception("Got an empty BPF filter from tcpdump !")
bp = get_bpf_pointer(lines)
# Assign the BPF program to the interface
ret = LIBC.ioctl(c_int(fd), BIOCSETF, cast(pointer(bp), c_char_p))
if ret < 0:
raise Scapy_Exception("Can't attach the BPF filter !")
def attach_filter(fd, iface, bpf_filter_string):
"""Attach a BPF filter to the BPF file descriptor"""
# Retrieve the BPF byte code in decimal
command = "%s -i %s -ddd -s 1600 '%s'" % (conf.prog.tcpdump, iface, bpf_filter_string)
try:
f = os.popen(command)
except OSError as msg:
raise Scapy_Exception("Failed to execute tcpdump: (%s)" % msg)
# Convert the byte code to a BPF program structure
lines = f.readlines()
if lines == []:
raise Scapy_Exception("Got an empty BPF filter from tcpdump !")
bp = get_bpf_pointer(lines)
# Assign the BPF program to the interface
ret = LIBC.ioctl(c_int(fd), BIOCSETF, cast(pointer(bp), c_char_p))
if ret < 0:
raise Scapy_Exception("Can't attach the BPF filter !")
