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Lines 4-12
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Scapy *BSD native support - BPF sockets |
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Scapy *BSD native support - BPF sockets |
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""" |
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""" |
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from ctypes import c_long, sizeof |
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import errno |
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import errno |
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import fcntl |
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import fcntl |
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import os |
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import os |
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import platform |
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from select import select |
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from select import select |
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import struct |
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import struct |
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import time |
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import time |
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Lines 23-29
from scapy.supersocket import SuperSocket
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from scapy.compat import raw |
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from scapy.compat import raw |
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if FREEBSD or NETBSD: |
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if FREEBSD: |
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# On 32bit architectures long might be 32bit. |
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BPF_ALIGNMENT = sizeof(c_long) |
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elif NETBSD: |
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BPF_ALIGNMENT = 8 # sizeof(long) |
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BPF_ALIGNMENT = 8 # sizeof(long) |
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else: |
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else: |
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BPF_ALIGNMENT = 4 # sizeof(int32_t) |
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BPF_ALIGNMENT = 4 # sizeof(int32_t) |
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class L2bpfListenSocket(_L2bpfSocket):
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return |
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return |
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# Extract useful information from the BPF header |
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# Extract useful information from the BPF header |
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if FREEBSD or NETBSD: |
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if FREEBSD: |
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# struct bpf_xhdr or struct bpf_hdr32 |
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# Unless we set BIOCSTSTAMP to something different than BPF_T_MICROTIME |
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# we will get bpf_hdr on FreeBSD, which means that we'll get a |
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# struct timeval, which is time_t, suseconds_t. |
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# On i386 time_t still is 32bit so the bh_tstamp will only be 8 bytes. |
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# We really want to set BIOCSTSTAMP to BPF_T_NANOTIME and be done with this |
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# and it always be 16? |
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if platform.machine() == "i386": |
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# struct bpf_hdr |
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bh_tstamp_offset = 8 |
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else: |
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# struct bpf_hdr (64bit time_t) or struct bpf_xhdr |
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bh_tstamp_offset = 16 |
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elif NETBSD: |
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# struct bpf_hdr or struct bpf_hdr32 |
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bh_tstamp_offset = 16 |
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bh_tstamp_offset = 16 |
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else: |
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else: |
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# struct bpf_hdr |
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# struct bpf_hdr |