net/sunrpc/netlink.c

Source file repositories/reference/linux-study-clean/net/sunrpc/netlink.c

File Facts

System
Linux kernel
Corpus path
net/sunrpc/netlink.c
Extension
.c
Size
3322 bytes
Lines
98
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
/* Do not edit directly, auto-generated from: */
/*	Documentation/netlink/specs/sunrpc_cache.yaml */
/* YNL-GEN kernel source */
/* To regenerate run: tools/net/ynl/ynl-regen.sh */

#include <net/netlink.h>
#include <net/genetlink.h>

#include "netlink.h"

#include <uapi/linux/sunrpc_netlink.h>

/* Common nested types */
const struct nla_policy sunrpc_ip_map_nl_policy[SUNRPC_A_IP_MAP_EXPIRY + 1] = {
	[SUNRPC_A_IP_MAP_SEQNO] = { .type = NLA_U64, },
	[SUNRPC_A_IP_MAP_CLASS] = { .type = NLA_NUL_STRING, },
	[SUNRPC_A_IP_MAP_ADDR] = { .type = NLA_NUL_STRING, },
	[SUNRPC_A_IP_MAP_DOMAIN] = { .type = NLA_NUL_STRING, },
	[SUNRPC_A_IP_MAP_NEGATIVE] = { .type = NLA_FLAG, },
	[SUNRPC_A_IP_MAP_EXPIRY] = { .type = NLA_U64, },
};

const struct nla_policy sunrpc_unix_gid_nl_policy[SUNRPC_A_UNIX_GID_EXPIRY + 1] = {
	[SUNRPC_A_UNIX_GID_SEQNO] = { .type = NLA_U64, },
	[SUNRPC_A_UNIX_GID_UID] = { .type = NLA_U32, },
	[SUNRPC_A_UNIX_GID_GIDS] = { .type = NLA_U32, },
	[SUNRPC_A_UNIX_GID_NEGATIVE] = { .type = NLA_FLAG, },
	[SUNRPC_A_UNIX_GID_EXPIRY] = { .type = NLA_U64, },
};

/* SUNRPC_CMD_IP_MAP_SET_REQS - do */
static const struct nla_policy sunrpc_ip_map_set_reqs_nl_policy[SUNRPC_A_IP_MAP_REQS_REQUESTS + 1] = {
	[SUNRPC_A_IP_MAP_REQS_REQUESTS] = NLA_POLICY_NESTED(sunrpc_ip_map_nl_policy),
};

/* SUNRPC_CMD_UNIX_GID_SET_REQS - do */
static const struct nla_policy sunrpc_unix_gid_set_reqs_nl_policy[SUNRPC_A_UNIX_GID_REQS_REQUESTS + 1] = {
	[SUNRPC_A_UNIX_GID_REQS_REQUESTS] = NLA_POLICY_NESTED(sunrpc_unix_gid_nl_policy),
};

/* SUNRPC_CMD_CACHE_FLUSH - do */
static const struct nla_policy sunrpc_cache_flush_nl_policy[SUNRPC_A_CACHE_FLUSH_MASK + 1] = {
	[SUNRPC_A_CACHE_FLUSH_MASK] = NLA_POLICY_MASK(NLA_U32, 0x3),
};

/* Ops table for sunrpc */
static const struct genl_split_ops sunrpc_nl_ops[] = {
	{
		.cmd	= SUNRPC_CMD_IP_MAP_GET_REQS,
		.dumpit	= sunrpc_nl_ip_map_get_reqs_dumpit,
		.flags	= GENL_ADMIN_PERM | GENL_CMD_CAP_DUMP,
	},
	{
		.cmd		= SUNRPC_CMD_IP_MAP_SET_REQS,
		.doit		= sunrpc_nl_ip_map_set_reqs_doit,
		.policy		= sunrpc_ip_map_set_reqs_nl_policy,
		.maxattr	= SUNRPC_A_IP_MAP_REQS_REQUESTS,
		.flags		= GENL_ADMIN_PERM | GENL_CMD_CAP_DO,
	},
	{
		.cmd	= SUNRPC_CMD_UNIX_GID_GET_REQS,
		.dumpit	= sunrpc_nl_unix_gid_get_reqs_dumpit,
		.flags	= GENL_ADMIN_PERM | GENL_CMD_CAP_DUMP,
	},
	{
		.cmd		= SUNRPC_CMD_UNIX_GID_SET_REQS,
		.doit		= sunrpc_nl_unix_gid_set_reqs_doit,
		.policy		= sunrpc_unix_gid_set_reqs_nl_policy,
		.maxattr	= SUNRPC_A_UNIX_GID_REQS_REQUESTS,
		.flags		= GENL_ADMIN_PERM | GENL_CMD_CAP_DO,
	},
	{
		.cmd		= SUNRPC_CMD_CACHE_FLUSH,
		.doit		= sunrpc_nl_cache_flush_doit,
		.policy		= sunrpc_cache_flush_nl_policy,
		.maxattr	= SUNRPC_A_CACHE_FLUSH_MASK,
		.flags		= GENL_ADMIN_PERM | GENL_CMD_CAP_DO,
	},
};

static const struct genl_multicast_group sunrpc_nl_mcgrps[] = {
	[SUNRPC_NLGRP_NONE] = { "none", },
	[SUNRPC_NLGRP_EXPORTD] = { "exportd", },
};

struct genl_family sunrpc_nl_family __ro_after_init = {
	.name		= SUNRPC_FAMILY_NAME,
	.version	= SUNRPC_FAMILY_VERSION,
	.netnsok	= true,

Annotation

Implementation Notes