80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
import os
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from flask import Blueprint, request, redirect, flash
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from auth import require_level
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from config_utils import verify_core_hash, queued_msg, queue_command
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import sanitize
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bp = Blueprint('action_apply_iface_config', __name__)
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_VIEW = '/view/view_general'
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_EXCLUDE_PREFIXES = ('lo', 'wg', 'docker', 'br-', 'veth',
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'tun', 'tap', 'ppp', 'virbr',
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'podman', 'vnet', 'macvtap', 'fc-')
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def _valid_interface(name):
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try:
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return name in {
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n for n in os.listdir('/sys/class/net')
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if not n.startswith(_EXCLUDE_PREFIXES)
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and os.path.exists(f'/sys/class/net/{n}/device')
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}
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except Exception:
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return False
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@bp.route('/action/apply_iface_config', methods=['POST'])
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@require_level('administrator')
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def apply_iface_config():
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if not verify_core_hash(request.form.get('config_hash', '')):
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flash('Configuration was modified by another session. Please refresh and try again.', 'error')
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return redirect(_VIEW)
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iface = sanitize.interface_name(request.form.get('iface', ''))
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mtu = request.form.get('mtu', '').strip()
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mac = sanitize.mac(request.form.get('mac', ''))
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original_mtu = request.form.get('original_mtu', '').strip()
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original_mac = sanitize.mac(request.form.get('original_mac', ''))
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if not iface:
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flash('No interface specified.', 'error')
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return redirect(_VIEW)
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if not _valid_interface(iface):
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flash(f"Interface '{iface}' does not exist on this system.", 'error')
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return redirect(_VIEW)
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mtu_int = None
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if mtu:
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try:
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mtu_int = int(mtu)
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if not (68 <= mtu_int <= 9000):
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raise ValueError
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except ValueError:
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flash('MTU must be an integer between 68 and 9000.', 'error')
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return redirect(_VIEW)
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mac_raw = request.form.get('mac', '').strip()
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if mac_raw and not mac:
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flash('MAC address must be in the format aa:bb:cc:dd:ee:ff.', 'error')
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return redirect(_VIEW)
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if not mtu_int and not mac:
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flash('No changes specified.', 'error')
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return redirect(_VIEW)
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queued = False
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if mtu_int and str(mtu_int) != original_mtu:
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queue_command(f'mtu {iface} {mtu_int}')
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queued = True
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if mac and mac != original_mac:
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queue_command(f'mac {iface} {mac}')
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queued = True
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if not queued:
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flash('No changes detected.', 'info')
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return redirect(_VIEW)
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flash(queued_msg(), 'success')
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return redirect(_VIEW)
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