86890704fd
todo: add documentation & wireshark dissector
119 lines
3.7 KiB
Python
Executable file
119 lines
3.7 KiB
Python
Executable file
# This file is part of Scapy
|
|
# See http://www.secdev.org/projects/scapy for more information
|
|
# Copyright (C) Philippe Biondi <phil@secdev.org>
|
|
# This program is published under a GPLv2 license
|
|
|
|
"""
|
|
Scapy: create, send, sniff, dissect and manipulate network packets.
|
|
|
|
Usable either from an interactive console or as a Python library.
|
|
https://scapy.net
|
|
"""
|
|
|
|
import os
|
|
import re
|
|
import subprocess
|
|
|
|
from scapy.compat import AnyStr
|
|
|
|
|
|
_SCAPY_PKG_DIR = os.path.dirname(__file__)
|
|
|
|
|
|
def _version_from_git_describe():
|
|
# type: () -> AnyStr
|
|
"""
|
|
Read the version from ``git describe``. It returns the latest tag with an
|
|
optional suffix if the current directory is not exactly on the tag.
|
|
|
|
Example::
|
|
|
|
$ git describe --always
|
|
v2.3.2-346-g164a52c075c8
|
|
|
|
The tag prefix (``v``) and the git commit sha1 (``-g164a52c075c8``) are
|
|
removed if present.
|
|
|
|
If the current directory is not exactly on the tag, a ``.devN`` suffix is
|
|
appended where N is the number of commits made after the last tag.
|
|
|
|
Example::
|
|
|
|
>>> _version_from_git_describe()
|
|
'2.3.2.dev346'
|
|
|
|
:raises CalledProcessError: if git is unavailable
|
|
:return: Scapy's latest tag
|
|
"""
|
|
if not os.path.isdir(os.path.join(os.path.dirname(_SCAPY_PKG_DIR), '.git')): # noqa: E501
|
|
raise ValueError('not in scapy git repo')
|
|
|
|
def _git(cmd):
|
|
process = subprocess.Popen(
|
|
cmd.split(),
|
|
cwd=_SCAPY_PKG_DIR,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE
|
|
)
|
|
out, err = process.communicate()
|
|
if process.returncode == 0:
|
|
return out.decode().strip()
|
|
else:
|
|
raise subprocess.CalledProcessError(process.returncode, err)
|
|
|
|
tag = _git("git describe --always")
|
|
if not tag.startswith("v"):
|
|
# Upstream was not fetched
|
|
commit = _git("git rev-list --tags --max-count=1")
|
|
tag = _git("git describe --tags --always --long %s" % commit)
|
|
match = re.match('^v?(.+?)-(\\d+)-g[a-f0-9]+$', tag)
|
|
if match:
|
|
# remove the 'v' prefix and add a '.devN' suffix
|
|
return '%s.dev%s' % (match.group(1), match.group(2))
|
|
else:
|
|
# just remove the 'v' prefix
|
|
return re.sub('^v', '', tag)
|
|
|
|
|
|
def _version():
|
|
# type: () -> str
|
|
"""Returns the Scapy version from multiple methods
|
|
|
|
:return: the Scapy version
|
|
"""
|
|
version_file = os.path.join(_SCAPY_PKG_DIR, 'VERSION')
|
|
try:
|
|
tag = _version_from_git_describe()
|
|
# successfully read the tag from git, write it in VERSION for
|
|
# installation and/or archive generation.
|
|
with open(version_file, 'w') as fdesc:
|
|
fdesc.write(tag)
|
|
return tag
|
|
except Exception:
|
|
# failed to read the tag from git, try to read it from a VERSION file
|
|
try:
|
|
with open(version_file, 'r') as fdsec:
|
|
tag = fdsec.read()
|
|
return tag
|
|
except Exception:
|
|
# Rely on git archive "export-subst" git attribute.
|
|
# See 'man gitattributes' for more details.
|
|
git_archive_id = '$Format:%h %d$'
|
|
sha1 = git_archive_id.strip().split()[0]
|
|
match = re.search('tag:(\\S+)', git_archive_id)
|
|
if match:
|
|
return "git-archive.dev" + match.group(1)
|
|
elif sha1:
|
|
return "git-archive.dev" + sha1
|
|
else:
|
|
return 'unknown.version'
|
|
|
|
|
|
VERSION = __version__ = _version()
|
|
|
|
_tmp = re.search(r"[0-9.]+", VERSION)
|
|
VERSION_MAIN = _tmp.group() if _tmp is not None else VERSION
|
|
|
|
if __name__ == "__main__":
|
|
from scapy.main import interact
|
|
interact()
|