diff options
Diffstat (limited to 'src/utils')
| -rw-r--r-- | src/utils/uefi.py | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/src/utils/uefi.py b/src/utils/uefi.py index 5ca8270..c0bc958 100644 --- a/src/utils/uefi.py +++ b/src/utils/uefi.py @@ -54,21 +54,44 @@ def _check_efibootmgr_json(): def is_uefi_supported(): return os.path.exists("/sys/firmware/efi") +def _validate_efibootmgr_json(dict_json): + missing_fields = [] + if not 'BootOrder' in dict_json: + missing_fields.append('BootOrder') -def run_efibootmgr_json(): + if not 'vars' in dict_json: + missing_fields.append('vars') + + for i, entry in enumerate(dict_json.get('vars', [])): + if not 'name' in entry: + missing_fields.append(f'vars[{i}].name') + + if not 'active' in entry: + missing_fields.append('vars[{i}].active') + + if not 'description' in entry: + missing_fields.append('vars[{i}].description') + + if missing_fields: + raise OgError('Missing required efibootmgr fields: ' + ', '.join(missing_fields)) + +def run_efibootmgr_json(validate): if _check_efibootmgr_json() is False: raise OgError(f'{EFIBOOTMGR_BIN} not available') proc = subprocess.run([EFIBOOTMGR_BIN, '--json'], capture_output=True, text=True) dict_json = json.loads(proc.stdout) + if validate: + _validate_efibootmgr_json(dict_json) + return dict_json def efibootmgr_bootnext(description): logging.info(f'Setting BootNext to value from boot entry with label {description}') bootnext_cmd = '{efibootmgr} -n {bootnum}' - boot_entries = run_efibootmgr_json().get('vars', []) + boot_entries = run_efibootmgr_json(validate=False).get('vars', []) entry = _find_bootentry(boot_entries, description) num = _strip_boot_prefix(entry) # efibootmgr output uses BootXXXX for each entry, remove the "Boot" prefix. @@ -78,7 +101,7 @@ def efibootmgr_bootnext(description): def efibootmgr_delete_bootentry(label): - dict_json = run_efibootmgr_json() + dict_json = run_efibootmgr_json(validate=False) efibootmgr_cmd = '{efibootmgr} -q -b {bootnum} -B' for entry in dict_json.get('vars', []): @@ -92,7 +115,7 @@ def efibootmgr_delete_bootentry(label): def efibootmgr_create_bootentry(disk, part, loader, label, add_to_bootorder=True): - entries = run_efibootmgr_json().get('vars', []) + entries = run_efibootmgr_json(validate=False).get('vars', []) create_opt = '-c' if add_to_bootorder else '-C' index_opt = f'-I {len(entries)}' # Requires efibootmgr version 18 efibootmgr_cmd = f'{EFIBOOTMGR_BIN} {create_opt} {index_opt} -d {disk} -p {part} -L {label} -l {loader}' |