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#############################################################################
# Copyright (c) 2007-2010 Balabit
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# As an additional exemption you are allowed to compile & link against the
# OpenSSL libraries as published by the OpenSSL project. See the file
# COPYING for details.
#
#############################################################################
import struct, stat, re
from socket import *
import ssl
import os, sys, errno
from log import *
syslog_prefix = "2004-09-07T10:43:21+01:00 bzorp prog[12345]:"
syslog_new_prefix = "2004-09-07T10:43:21+01:00 bzorp prog 12345 - -"
session_counter = 0
need_to_flush = False
padding = 'x' * 250
class MessageSender(object):
def __init__(self, repeat=100, new_protocol=0, dgram=0):
self.repeat = repeat
self.new_protocol = new_protocol
self.dgram = dgram
def sendMessages(self, msg, pri=7):
global session_counter
global need_to_flush
global syslog_prefix
global syslog_prefix_new
need_to_flush = True
print_user("generating %d messages using transport %s" % (self.repeat, str(self)))
self.initSender()
expected = []
for counter in range(1, self.repeat):
if self.new_protocol == 0:
line = '<%d>%s %s %03d/%05d %s %s' % (pri, syslog_prefix, msg, session_counter, counter, str(self), padding)
else:
line = '<%d>1 %s %s %03d/%05d %s %s' % (pri, syslog_new_prefix, msg, session_counter, counter, str(self), padding)
# add framing on tcp with new protocol
if self.dgram == 0 and self.new_protocol == 1:
line = '%d %s' % (len(line), line)
self.sendMessage(line) # file or socket
expected.append((msg, session_counter, self.repeat))
session_counter = session_counter + 1
return expected
class SocketSender(MessageSender):
def __init__(self, family, sock_name, dgram=0, send_by_bytes=0, terminate_seq='\n', repeat=100, ssl=0, new_protocol=0):
MessageSender.__init__(self, repeat, new_protocol, dgram)
self.family = family
self.sock_name = sock_name
self.sock = None
self.dgram = dgram
self.send_by_bytes = send_by_bytes
self.terminate_seq = terminate_seq
self.ssl = ssl
self.new_protocol = new_protocol
def initSender(self):
if self.dgram:
self.sock = socket(self.family, SOCK_DGRAM)
else:
self.sock = socket(self.family, SOCK_STREAM)
self.sock.connect(self.sock_name)
if self.dgram:
self.sock.send(''.encode())
if sys.platform == 'linux2':
self.sock.setsockopt(SOL_SOCKET, SO_SNDTIMEO, struct.pack('ll', 3, 0))
if not self.dgram and self.ssl:
self.sock = ssl.SSLContext(ssl.PROTOCOL_TLSv1_2).wrap_socket(self.sock)
def sendMessage(self, msg):
line = '%s%s' % (msg, self.terminate_seq)
if self.send_by_bytes:
for c in line:
try:
if self.ssl:
self.sock.write(c.encode())
else:
self.sock.send(c.encode())
except error as e:
if e[0] == errno.ENOBUFS:
print_user('got ENOBUFS, sleeping...')
time.sleep(0.5)
repeat = True
else:
print_user("hmm... got an error to the 'send' call, maybe syslog-ng is not accepting messages?")
raise
else:
repeat = True
while repeat:
try:
repeat = False
# WTF? SSLObject only has write, whereas sockets only have send methods
if self.ssl:
self.sock.write(line.encode())
else:
self.sock.send(line.encode())
if self.dgram:
time.sleep(0.01)
except error as e:
if e[0] == errno.ENOBUFS:
print_user('got ENOBUFS, sleeping...')
time.sleep(0.5)
repeat = True
else:
print_user("hmm... got an error to the 'send' call, maybe syslog-ng is not accepting messages?")
raise
def __str__(self):
if self.family == AF_UNIX:
if self.dgram:
return 'unix-dgram(%s)' % (self.sock_name)
else:
return 'unix-stream(%s)' % (self.sock_name)
else:
if self.dgram:
return 'udp(%s)' % (self.sock_name,)
elif not self.ssl:
return 'tcp(%s)' % (self.sock_name,)
else:
return 'tls(%s)' % (self.sock_name,)
class FileSender(MessageSender):
def __init__(self, file_name, padding=0, send_by_bytes=0, terminate_seq='\n', repeat=100):
MessageSender.__init__(self, repeat)
self.file_name = file_name
self.padding = padding
self.send_by_bytes = send_by_bytes
self.terminate_seq = terminate_seq
self.fd = None
try:
if stat.S_ISFIFO(os.stat(file_name).st_mode):
self.is_pipe = True
else:
self.is_pipe = False
except OSError:
self.is_pipe = False
def __del__(self):
if self.fd:
self.fd.flush()
self.fd.close()
def initSender(self):
directory = os.path.dirname(self.file_name)
if not os.path.exists(directory) and len(directory) > 0:
os.makedirs(directory)
if self.is_pipe:
self.fd = open(self.file_name, "w")
else:
self.fd = open(self.file_name, "a")
def sendMessages(self, msg):
res = super(FileSender, self).sendMessages(msg)
return res
def sendMessage(self, msg):
line = '%s%s' % (msg, self.terminate_seq)
if self.padding:
line += '\0' * (self.padding - len(line))
if self.send_by_bytes:
for c in line:
self.fd.write(c)
self.fd.flush()
else:
self.fd.write(line)
self.fd.flush()
def __str__(self):
if self.is_pipe:
if self.padding:
return 'pipe(%s[%d])' % (self.file_name, self.padding)
else:
return 'pipe(%s)' % (self.file_name,)
else:
return 'file(%s)' % (self.file_name,)
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