Commit 13727f85 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Chuck Lever
Browse files

NFSD: introduce netlink stubs 



Generate stubs and uAPI for nfsd netlink protocol. For the moment,
the new protocol has one operation: rpc_status.

The generated header and source files are created by running:

  tools/net/ynl/ynl-regen.sh

Tested-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Acked-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent 6c41d9a9

Documentation/netlink/specs/nfsd.yaml

0 → 100644
+89 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)



name: nfsd

protocol: genetlink

uapi-header: linux/nfsd_netlink.h



doc: NFSD configuration over generic netlink.



attribute-sets:

  -

    name: rpc-status

    attributes:

      -

        name: xid

        type: u32

        byte-order: big-endian

      -

        name: flags

        type: u32

      -

        name: prog

        type: u32

      -

        name: version

        type: u8

      -

        name: proc

        type: u32

      -

        name: service_time

        type: s64

      -

        name: pad

        type: pad

      -

        name: saddr4

        type: u32

        byte-order: big-endian

        display-hint: ipv4

      -

        name: daddr4

        type: u32

        byte-order: big-endian

        display-hint: ipv4

      -

        name: saddr6

        type: binary

        display-hint: ipv6

      -

        name: daddr6

        type: binary

        display-hint: ipv6

      -

        name: sport

        type: u16

        byte-order: big-endian

      -

        name: dport

        type: u16

        byte-order: big-endian

      -

        name: compound-ops

        type: u32

        multi-attr: true



operations:

  list:

    -

      name: rpc-status-get

      doc: dump pending nfsd rpc

      attribute-set: rpc-status

      dump:

        pre: nfsd-nl-rpc-status-get-start

        post: nfsd-nl-rpc-status-get-done

        reply:

          attributes:

            - xid

            - flags

            - prog

            - version

            - proc

            - service_time

            - saddr4

            - daddr4

            - saddr6

            - daddr6

            - sport

            - dport

            - compound-ops

fs/nfsd/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -12,7 +12,8 @@ nfsd-y += trace.o 


nfsd-y 			+= nfssvc.o nfsctl.o nfsfh.o vfs.o \

			   export.o auth.o lockd.o nfscache.o \

			   stats.o filecache.o nfs3proc.o nfs3xdr.o

			   stats.o filecache.o nfs3proc.o nfs3xdr.o \

			   netlink.o

nfsd-$(CONFIG_NFSD_V2) += nfsproc.o nfsxdr.o

nfsd-$(CONFIG_NFSD_V2_ACL) += nfs2acl.o

nfsd-$(CONFIG_NFSD_V3_ACL) += nfs3acl.o

fs/nfsd/netlink.c

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+32 −0
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// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)

/* Do not edit directly, auto-generated from: */

/*	Documentation/netlink/specs/nfsd.yaml */

/* YNL-GEN kernel source */



#include <net/netlink.h>

#include <net/genetlink.h>



#include "netlink.h"



#include <uapi/linux/nfsd_netlink.h>



/* Ops table for nfsd */

static const struct genl_split_ops nfsd_nl_ops[] = {

	{

		.cmd	= NFSD_CMD_RPC_STATUS_GET,

		.start	= nfsd_nl_rpc_status_get_start,

		.dumpit	= nfsd_nl_rpc_status_get_dumpit,

		.done	= nfsd_nl_rpc_status_get_done,

		.flags	= GENL_CMD_CAP_DUMP,

	},

};



struct genl_family nfsd_nl_family __ro_after_init = {

	.name		= NFSD_FAMILY_NAME,

	.version	= NFSD_FAMILY_VERSION,

	.netnsok	= true,

	.parallel_ops	= true,

	.module		= THIS_MODULE,

	.split_ops	= nfsd_nl_ops,

	.n_split_ops	= ARRAY_SIZE(nfsd_nl_ops),

};

fs/nfsd/netlink.h

0 → 100644
+22 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */

/* Do not edit directly, auto-generated from: */

/*	Documentation/netlink/specs/nfsd.yaml */

/* YNL-GEN kernel header */



#ifndef _LINUX_NFSD_GEN_H

#define _LINUX_NFSD_GEN_H



#include <net/netlink.h>

#include <net/genetlink.h>



#include <uapi/linux/nfsd_netlink.h>



int nfsd_nl_rpc_status_get_start(struct netlink_callback *cb);

int nfsd_nl_rpc_status_get_done(struct netlink_callback *cb);



int nfsd_nl_rpc_status_get_dumpit(struct sk_buff *skb,

				  struct netlink_callback *cb);



extern struct genl_family nfsd_nl_family;



#endif /* _LINUX_NFSD_GEN_H */

fs/nfsd/nfsctl.c

+17 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include "pnfs.h"

#include "filecache.h"

#include "trace.h"

#include "netlink.h"



/*

 *	We have a single directory with several nodes in it.
@@ -1495,6 +1496,22 @@ static int create_proc_exports_entry(void) 


unsigned int nfsd_net_id;



int nfsd_nl_rpc_status_get_start(struct netlink_callback *cb)

{

	return 0;

}



int nfsd_nl_rpc_status_get_dumpit(struct sk_buff *skb,

				  struct netlink_callback *cb)

{

	return 0;

}



int nfsd_nl_rpc_status_get_done(struct netlink_callback *cb)

{

	return 0;

}



/**

 * nfsd_net_init - Prepare the nfsd_net portion of a new net namespace

 * @net: a freshly-created network namespace