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authorJakub Kicinski <kuba@kernel.org>2025-04-09 18:46:52 -0700
committerJakub Kicinski <kuba@kernel.org>2025-04-10 20:14:41 -0700
commit17b3ce292dcbf1aaface3d42859cff0e1dfd3bb6 (patch)
treeb5ae6430d6ecfc0b5384718e9cb46430a22b34cc /tools/net/ynl/pyynl/ynl_gen_c.py
parent1652e1f35dfb434862a595224ab2c4aa0244951f (diff)
tools: ynl: support creating non-genl sockets
Classic netlink has static family IDs specified in YAML, there is no family name -> ID lookup. Support providing the ID info to the library via the generated struct and make library use it. Since NETLINK_ROUTE is ID 0 we need an extra boolean to indicate classic_id is to be used. Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250410014658.782120-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/net/ynl/pyynl/ynl_gen_c.py')
-rwxr-xr-xtools/net/ynl/pyynl/ynl_gen_c.py9
1 files changed, 6 insertions, 3 deletions
diff --git a/tools/net/ynl/pyynl/ynl_gen_c.py b/tools/net/ynl/pyynl/ynl_gen_c.py
index a1427c537030..9e00aac4801c 100755
--- a/tools/net/ynl/pyynl/ynl_gen_c.py
+++ b/tools/net/ynl/pyynl/ynl_gen_c.py
@@ -971,9 +971,6 @@ class Family(SpecFamily):
def resolve(self):
self.resolve_up(super())
- if self.yaml.get('protocol', 'genetlink') not in {'genetlink', 'genetlink-c', 'genetlink-legacy'}:
- raise Exception("Codegen only supported for genetlink")
-
self.c_name = c_lower(self.ident_name)
if 'name-prefix' in self.yaml['operations']:
self.op_prefix = c_upper(self.yaml['operations']['name-prefix'])
@@ -1020,6 +1017,9 @@ class Family(SpecFamily):
def new_operation(self, elem, req_value, rsp_value):
return Operation(self, elem, req_value, rsp_value)
+ def is_classic(self):
+ return self.proto == 'netlink-raw'
+
def _mark_notify(self):
for op in self.msgs.values():
if 'notify' in op:
@@ -2730,6 +2730,9 @@ def render_user_family(family, cw, prototype):
cw.block_start(f'{symbol} = ')
cw.p(f'.name\t\t= "{family.c_name}",')
+ if family.is_classic():
+ cw.p(f'.is_classic\t= true,')
+ cw.p(f'.classic_id\t= {family.get("protonum")},')
if family.fixed_header:
cw.p(f'.hdr_len\t= sizeof(struct genlmsghdr) + sizeof(struct {c_lower(family.fixed_header)}),')
else: