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tools/net/ynl: add support for --family and --list-families

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Add a --family option to ynl to specify the spec by family name instead
of file path, with support for searching in-tree and system install
location and a --list-families option to show the available families.

./tools/net/ynl/pyynl/cli.py --family rt_addr --dump getaddr

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250111154803.7496-1-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Donald Hunter
2025-01-11 15:48:02 +00:00
committed by Jakub Kicinski
parent 7c125d5b76
commit 2ff80cefb7
1 changed files with 43 additions and 2 deletions
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45
tools/net/ynl/pyynl/cli.py
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@@ -3,6 +3,7 @@
import argparse
import json
import os
import pathlib
import pprint
import sys
@@ -10,6 +11,24 @@ import sys
sys.path.append(pathlib.Path(__file__).resolve().parent.as_posix())
from lib import YnlFamily, Netlink, NlError
sys_schema_dir='/usr/share/ynl'
relative_schema_dir='../../../../Documentation/netlink'
def schema_dir():
script_dir = os.path.dirname(os.path.abspath(__file__))
schema_dir = os.path.abspath(f"{script_dir}/{relative_schema_dir}")
if not os.path.isdir(schema_dir):
schema_dir = sys_schema_dir
if not os.path.isdir(schema_dir):
raise Exception(f"Schema directory {schema_dir} does not exist")
return schema_dir
def spec_dir():
spec_dir = schema_dir() + '/specs'
if not os.path.isdir(spec_dir):
raise Exception(f"Spec directory {spec_dir} does not exist")
return spec_dir
class YnlEncoder(json.JSONEncoder):
def default(self, obj):
@@ -32,7 +51,14 @@ def main():
parser = argparse.ArgumentParser(description=description,
epilog=epilog)
parser.add_argument('--spec', dest='spec', type=str, required=True)
spec_group = parser.add_mutually_exclusive_group(required=True)
spec_group.add_argument('--family', dest='family', type=str,
help='name of the netlink FAMILY')
spec_group.add_argument('--list-families', action='store_true',
help='list all netlink families supported by YNL (has spec)')
spec_group.add_argument('--spec', dest='spec', type=str,
help='choose the family by SPEC file path')
parser.add_argument('--schema', dest='schema', type=str)
parser.add_argument('--no-schema', action='store_true')
parser.add_argument('--json', dest='json_text', type=str)
@@ -70,6 +96,12 @@ def main():
else:
pprint.PrettyPrinter().pprint(msg)
if args.list_families:
for filename in sorted(os.listdir(spec_dir())):
if filename.endswith('.yaml'):
print(filename.removesuffix('.yaml'))
return
if args.no_schema:
args.schema = ''
@@ -77,7 +109,16 @@ def main():
if args.json_text:
attrs = json.loads(args.json_text)
ynl = YnlFamily(args.spec, args.schema, args.process_unknown,
if args.family:
spec = f"{spec_dir()}/{args.family}.yaml"
if args.schema is None and spec.startswith(sys_schema_dir):
args.schema = '' # disable schema validation when installed
else:
spec = args.spec
if not os.path.isfile(spec):
raise Exception(f"Spec file {spec} does not exist")
ynl = YnlFamily(spec, args.schema, args.process_unknown,
recv_size=args.dbg_small_recv)
if args.dbg_small_recv:
ynl.set_recv_dbg(True)