Add code for capture testbed. This is a huge commit. End of day sync...

archive/functions_dump.py

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+def setup_sniff_tcpdump_parser(parser_sniff):
+    # arguments which will be passed to tcpdump
+    parser_sniff_tcpdump = parser_sniff.add_argument_group('tcpdump arguments')
+    # TODO: tcpdump_parser.add_argument('-c', '--count', re)
+    parser_sniff_tcpdump.add_argument("-a", "--ip-address=", help="IP address of the device to sniff", dest="device_ip")
+    parser_sniff_tcpdump.add_argument("-i", "--interface=", help="Interface of the capture device.", dest="capture_interface",default="")
+    parser_sniff_tcpdump.add_argument("-I", "--monitor-mode", help="Put interface into monitor mode",
+                                      action="store_true")
+    parser_sniff_tcpdump.add_argument("-n", help="Deactivate name resolution. Option is set by default.",
+                                      action="store_true")
+    parser_sniff_tcpdump.add_argument("-#", "--number",
+                                      help="Print packet number at beginning of line. Set by default.",
+                                      action="store_true")
+    parser_sniff_tcpdump.add_argument("-e", help="Print link layer headers. Option is set by default.",
+                                      action="store_true")
+    parser_sniff_tcpdump.add_argument("-t", action="count", default=0,
+                                      help="Please see tcpdump manual for details. Unused by default.")
+
+
+def setup_sniff_parser(subparsers):
+    # create parser for "sniff" command
+    parser_sniff = subparsers.add_parser("sniff", help="Start tcpdump capture.")
+    setup_sniff_tcpdump_parser(parser_sniff)
+    setup_pcap_filter_parser(parser_sniff)
+    cap_size_group = parser_sniff.add_mutually_exclusive_group(required=True)
+    cap_size_group.add_argument("-c", "--count", type=int, help="Number of packets to capture.", default=0)
+    cap_size_group.add_argument("--mins", type=int, help="Time in minutes to capture.", default=60)
+
+
+def setup_pcap_filter_parser(parser_sniff):
+    parser_pcap_filter = parser_sniff.add_argument_parser("pcap-filter expression")
+    pass

archive/metadata.py

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+import json
+import uuid
+from datetime import datetime
+
+
+class Metadata:
+    def __init__(self, name):
+        self.device = name
+        self.timestamp = datetime.now().timestamp()
+        self.capture_id = uuid.uuid4().hex
+        self.capture_mode = ...  # TODO: eg. promiscuous/monitor/other
+        self.host_ip = ...
+        self.host_mac = ...
+        self.protocol = ...
+
+
+def create_metadata(filename, unique_id, device_details):
+    date_string = datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
+    meta_filename = f"meta_{date_string}_{unique_id}.json"

archive/metadata_utils.py

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+import json
+from pathlib import Path
+
+from pydantic import BaseModel
+
+from kydcap.models.device_metadata import DeviceMetadata
+from kydcap.config import DEVICE_METADATA_FILE
+
+
+def write_device_metadata_to_file(metadata: DeviceMetadata, device_path: Path):
+    """Write the device metadata to a JSON file in the specified directory."""
+    meta_file_path = device_path / "meta.json"
+    meta_file_path.write_text(metadata.json(indent=2))
+
+
+def confirm_device_metadata(metadata: DeviceMetadata) -> bool:
+    """Display device metadata for user confirmation."""
+    print(metadata.json(indent=2))
+    return input("Confirm device metadata? (y/n): ").strip().lower() == 'y'
+
+
+def get_device_metadata_from_user() -> DeviceMetadata:
+    """Prompt the user to enter device details and return a populated DeviceMetadata object."""
+    device_name = input("Device name: ")
+    device_short_name = device_name.lower().replace(" ", "-")
+    return DeviceMetadata(device_name=device_name, device_short_name=device_short_name)
+
+
+def initialize_device_root_dir(device_name: str) -> Path:
+    """Create and return the path for the device directory."""
+    device_path = Path.cwd() / device_name
+    device_path.mkdir(exist_ok=True)
+    return device_path
+
+
+def write_metadata(metadata: BaseModel, device_name: str):
+    """Write device metadata to a JSON file."""
+    meta_path = Path.cwd() / device_name / DEVICE_METADATA_FILE
+    meta_path.parent.mkdir(parents=True, exist_ok=True)
+    with meta_path.open('w') as f:
+        json.dump(metadata.dict(), f, indent=4)
+
+
+def get_device_metadata(file_path: Path) -> DeviceMetadata | None:
+    """Fetch device metadata from a JSON file."""
+
+    if dev_metadata_exists(file_path):
+        with file_path.open('r') as f:
+            device_metadata_json = json.load(f)
+            try:
+                device_metadata = DeviceMetadata.model_validate_json(device_metadata_json)
+                return device_metadata
+            except ValueError as e:
+                print(f"Validation error for device metadata: {e}")
+    else:
+        # TODO Decide what to do (e.g. search for file etc)
+        print(f"No device metadata at {file_path}")
+        return None
+
+
+def search_device_metadata(filename=DEVICE_METADATA_FILE, start_dir=Path.cwd(), max_parents=3) -> Path:
+    pass  # TODO
+
+
+def dev_metadata_exists(file_path: Path) -> bool:
+    if file_path.is_file():
+        return True
+    else:
+        return False