This commit is contained in:
m0duspwnens
2024-10-01 08:33:37 -04:00
parent 50bd8448cc
commit 9f76371449
4 changed files with 140 additions and 75 deletions

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@@ -0,0 +1,53 @@
#!/usr/bin/python3
# Copyright Security Onion Solutions LLC and/or licensed to Security Onion Solutions LLC under one
# or more contributor license agreements. Licensed under the Elastic License 2.0 as shown at
# https://securityonion.net/license; you may not use this file except in compliance with the
# Elastic License 2.0.
import logging
import os
import sys
def setup_logging(logger_name, log_file_path, log_level=logging.INFO, format_str='%(asctime)s - %(levelname)s - %(message)s'):
"""
Sets up logging for a script.
Parameters:
logger_name (str): The name of the logger.
log_file_path (str): The file path for the log file.
log_level (int): The logging level (e.g., logging.INFO, logging.DEBUG).
format_str (str): The format string for log messages.
Returns:
logging.Logger: Configured logger object.
"""
logger = logging.getLogger(logger_name)
logger.setLevel(log_level)
# Create directory for log file if it doesn't exist
log_file_dir = os.path.dirname(log_file_path)
if log_file_dir and not os.path.exists(log_file_dir):
try:
os.makedirs(log_file_dir)
except OSError as e:
print(f"Error creating directory {log_file_dir}: {e}")
sys.exit(1)
# Create handlers
c_handler = logging.StreamHandler()
f_handler = logging.FileHandler(log_file_path)
c_handler.setLevel(log_level)
f_handler.setLevel(log_level)
# Create formatter and add it to handlers
formatter = logging.Formatter(format_str)
c_handler.setFormatter(formatter)
f_handler.setFormatter(formatter)
# Add handlers to the logger if they are not already added
if not logger.hasHandlers():
logger.addHandler(c_handler)
logger.addHandler(f_handler)
return logger

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@@ -1,4 +1,4 @@
#!/usr/bin/env python3 #!/usr/bin/python3
# Copyright Security Onion Solutions LLC and/or licensed to Security Onion Solutions LLC under one # Copyright Security Onion Solutions LLC and/or licensed to Security Onion Solutions LLC under one
# or more contributor license agreements. Licensed under the Elastic License 2.0 as shown at # or more contributor license agreements. Licensed under the Elastic License 2.0 as shown at
@@ -16,31 +16,12 @@ Example:
""" """
import argparse import argparse
import logging
import sys import sys
import time
import libvirt import libvirt
import logging
import xml.etree.ElementTree as ET import xml.etree.ElementTree as ET
from so_vm_utils import start_vm, stop_vm
def setup_logging(): from so_logging_utils import setup_logging
logger = logging.getLogger('so-kvm-modify-hardware')
logger.setLevel(logging.INFO)
# Create handlers
c_handler = logging.StreamHandler()
f_handler = logging.FileHandler('/opt/so/log/hypervisor/so-kvm-modify-hardware.log')
c_handler.setLevel(logging.INFO)
f_handler.setLevel(logging.INFO)
# Create formatter and add it to handlers
formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
c_handler.setFormatter(formatter)
f_handler.setFormatter(formatter)
# Add handlers to the logger
logger.addHandler(c_handler)
logger.addHandler(f_handler)
return logger
def parse_arguments(): def parse_arguments():
parser = argparse.ArgumentParser(description='Modify hardware parameters of a KVM virtual machine.') parser = argparse.ArgumentParser(description='Modify hardware parameters of a KVM virtual machine.')
@@ -52,23 +33,6 @@ def parse_arguments():
args = parser.parse_args() args = parser.parse_args()
return args return args
def stop_vm(conn, vm_name, logger):
try:
dom = conn.lookupByName(vm_name)
if dom.isActive():
logger.info(f"Shutting down VM '{vm_name}'...")
dom.shutdown()
# Wait for the VM to shut down
while dom.isActive():
time.sleep(1)
logger.info(f"VM '{vm_name}' has been stopped.")
else:
logger.info(f"VM '{vm_name}' is already stopped.")
return dom
except libvirt.libvirtError as e:
logger.error(f"Failed to stop VM '{vm_name}': {e}")
sys.exit(1)
def modify_vm(dom, cpu_count, memory_amount, pci_id, logger): def modify_vm(dom, cpu_count, memory_amount, pci_id, logger):
try: try:
# Get the XML description of the VM # Get the XML description of the VM
@@ -136,17 +100,8 @@ def redefine_vm(conn, new_xml_desc, logger):
logger.error(f"Failed to redefine VM: {e}") logger.error(f"Failed to redefine VM: {e}")
sys.exit(1) sys.exit(1)
def start_vm(dom, logger):
try:
dom.create()
logger.info("VM started successfully.")
except libvirt.libvirtError as e:
logger.error(f"Failed to start VM: {e}")
sys.exit(1)
def main(): def main():
try: try:
logger = setup_logging()
args = parse_arguments() args = parse_arguments()
vm_name = args.vm vm_name = args.vm
@@ -155,6 +110,14 @@ def main():
pci_id = args.pci pci_id = args.pci
start_vm_flag = args.start start_vm_flag = args.start
# Set up logging using the so_logging_utils library
logger = setup_logging(
logger_name='so-kvm-modify-hardware',
log_file_path='/opt/so/log/hypervisor/so-kvm-modify-hardware.log',
log_level=logging.INFO,
format_str='%(asctime)s - %(levelname)s - %(message)s'
)
# Connect to libvirt # Connect to libvirt
try: try:
conn = libvirt.open(None) conn = libvirt.open(None)

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@@ -6,14 +6,15 @@
# Elastic License 2.0. # Elastic License 2.0.
""" """
Script to modify the NetworkManager config within a qcow2 image. Script to modify the NetworkManager config within a QCOW2 image.
Usage: Usage:
python so-qcow2-modify-network.py -v <vm_name> [-c <cpu_count>] [-m <memory_amount>] [-p <pci_id>] python so-qcow2-modify-network.py -I <qcow2_image_path> -i <interface> (--dhcp4 | --static4 --ip4 <ip_address> --gw4 <gateway>) [--dns4 <dns_servers>] [--search4 <search_domain>]
Example: Examples:
python so-qcow2-modify-network.py -I path_to_image -i interface --static4 --ip4 192.168.1.10 --gw4 192.168.1.1 --dns4 192.168.1.1,8.8.8.8 --seearch4 example.local python so-qcow2-modify-network.py -I path_to_image -i eth0 --static4 --ip4 192.168.1.10/24 --gw4 192.168.1.1 --dns4 192.168.1.1,8.8.8.8 --search4 example.local
python so-qcow2-modify-network.py -I path_to_image -i interface --dhcp4
python so-qcow2-modify-network.py -I path_to_image -i eth0 --dhcp4
""" """
import argparse import argparse
@@ -25,29 +26,11 @@ import os
import ipaddress import ipaddress
import configparser import configparser
from io import StringIO from io import StringIO
from so_logging_utils import setup_logging
NETWORK_CONFIG_DIR = "/etc/NetworkManager/system-connections" NETWORK_CONFIG_DIR = "/etc/NetworkManager/system-connections"
def setup_logging():
logger = logging.getLogger('so-qcow2-modify-network')
logger.setLevel(logging.INFO)
# Create handlers
c_handler = logging.StreamHandler()
f_handler = logging.FileHandler('/opt/so/log/hypervisor/so-qcow2-modify-network.log')
c_handler.setLevel(logging.INFO)
f_handler.setLevel(logging.INFO)
# Create formatter and add it to handlers
formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
c_handler.setFormatter(formatter)
f_handler.setFormatter(formatter)
# Add handlers to the logger
logger.addHandler(c_handler)
logger.addHandler(f_handler)
return logger
def validate_ip_address(ip_str, description="IP address"): def validate_ip_address(ip_str, description="IP address"):
try: try:
ipaddress.IPv4Interface(ip_str) ipaddress.IPv4Interface(ip_str)
@@ -179,7 +162,13 @@ def parse_arguments():
def main(): def main():
try: try:
logger = setup_logging() # Set up logging using the so_logging_utils library
logger = setup_logging(
logger_name='so-qcow2-modify-network',
log_file_path='/opt/so/log/hypervisor/so-qcow2-modify-network.log',
log_level=logging.INFO,
format_str='%(asctime)s - %(levelname)s - %(message)s'
)
args = parse_arguments() args = parse_arguments()
validate_interface_name(args.interface) validate_interface_name(args.interface)

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@@ -0,0 +1,60 @@
#!/usr/bin/python3
# Copyright Security Onion Solutions LLC and/or licensed to Security Onion Solutions LLC under one
# or more contributor license agreements. Licensed under the Elastic License 2.0 as shown at
# https://securityonion.net/license; you may not use this file except in compliance with the
# Elastic License 2.0.
import sys
import time
import libvirt
import logging
def stop_vm(conn, vm_name, logger):
"""
Stops the specified virtual machine if it is running.
Parameters:
conn (libvirt.virConnect): The libvirt connection object.
vm_name (str): The name of the virtual machine.
logger (logging.Logger): The logger object.
Returns:
libvirt.virDomain: The domain object of the VM.
Raises:
SystemExit: If the VM cannot be found or an error occurs.
"""
try:
dom = conn.lookupByName(vm_name)
if dom.isActive():
logger.info(f"Shutting down VM '{vm_name}'...")
dom.shutdown()
# Wait for the VM to shut down
while dom.isActive():
time.sleep(1)
logger.info(f"VM '{vm_name}' has been stopped.")
else:
logger.info(f"VM '{vm_name}' is already stopped.")
return dom
except libvirt.libvirtError as e:
logger.error(f"Failed to stop VM '{vm_name}': {e}")
sys.exit(1)
def start_vm(dom, logger):
"""
Starts the specified virtual machine.
Parameters:
dom (libvirt.virDomain): The domain object of the VM.
logger (logging.Logger): The logger object.
Raises:
SystemExit: If the VM cannot be started.
"""
try:
dom.create()
logger.info(f"VM '{dom.name()}' started successfully.")
except libvirt.libvirtError as e:
logger.error(f"Failed to start VM '{dom.name()}': {e}")
sys.exit(1)