D48308.diff
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	diff --git a/sys/netlink/netlink_snl_generic.h b/sys/netlink/netlink_snl_generic.h
	--- a/sys/netlink/netlink_snl_generic.h
	+++ b/sys/netlink/netlink_snl_generic.h
	@@ -127,6 +127,24 @@
	return (attrs.family_id);
	}

	+static inline uint16_t
	+snl_get_genl_mcast_group(struct snl_state ss, const char family_name,
	+ const char group_name, uint16_t family_id)
	+{
	+ struct _getfamily_attrs attrs = {};
	+
	+ snl_get_genl_family_info(ss, family_name, &attrs);
	+ if (attrs.family_id == 0)
	+ return (0);
	+ if (family_id != NULL)
	+ *family_id = attrs.family_id;
	+ for (u_int i = 0; i < attrs.mcast_groups.num_groups; i++)
	+ if (strcmp(attrs.mcast_groups.groups[i]->mcast_grp_name,
	+ group_name) == 0)
	+ return (attrs.mcast_groups.groups[i]->mcast_grp_id);
	+ return (0);
	+}
	+
	static const struct snl_hdr_parser *snl_all_genl_parsers[] = {
	&_genl_ctrl_getfam_parser, &_genl_ctrl_mc_parser,
	};