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Message-ID: <ce3bc230e1b8d0c741a240c17d99f5a2072e7ce1.1694436263.git.lorenzo@kernel.org>
Date: Mon, 11 Sep 2023 14:49:45 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: linux-nfs@...r.kernel.org
Cc: lorenzo.bianconi@...hat.com,
chuck.lever@...cle.com,
jlayton@...nel.org,
neilb@...e.de,
netdev@...r.kernel.org
Subject: [PATCH v8 2/3] NFSD: introduce netlink rpc_status stubs
Generate empty netlink stubs and uAPI through nfsd_server.yaml specs:
$./tools/net/ynl/ynl-gen-c.py --mode uapi \
--spec Documentation/netlink/specs/nfsd_server.yaml \
--header -o include/uapi/linux/nfsd_server.h
$./tools/net/ynl/ynl-gen-c.py --mode kernel \
--spec Documentation/netlink/specs/nfsd_server.yaml \
--header -o fs/nfsd/nfs_netlink_gen.h
$./tools/net/ynl/ynl-gen-c.py --mode kernel \
--spec Documentation/netlink/specs/nfsd_server.yaml \
--source -o fs/nfsd/nfs_netlink_gen.c
Tested-by: Jeff Layton <jlayton@...nel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
fs/nfsd/Makefile | 3 +-
fs/nfsd/nfs_netlink_gen.c | 32 +++++++++++++++++++++
fs/nfsd/nfs_netlink_gen.h | 22 ++++++++++++++
fs/nfsd/nfsctl.c | 16 +++++++++++
include/uapi/linux/nfsd_server.h | 49 ++++++++++++++++++++++++++++++++
5 files changed, 121 insertions(+), 1 deletion(-)
create mode 100644 fs/nfsd/nfs_netlink_gen.c
create mode 100644 fs/nfsd/nfs_netlink_gen.h
create mode 100644 include/uapi/linux/nfsd_server.h
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
index 6fffc8f03f74..6ae1d5450bf6 100644
--- a/fs/nfsd/Makefile
+++ b/fs/nfsd/Makefile
@@ -12,7 +12,8 @@ nfsd-y += trace.o
nfsd-y += nfssvc.o nfsctl.o nfsfh.o vfs.o \
export.o auth.o lockd.o nfscache.o \
- stats.o filecache.o nfs3proc.o nfs3xdr.o
+ stats.o filecache.o nfs3proc.o nfs3xdr.o \
+ nfs_netlink_gen.o
nfsd-$(CONFIG_NFSD_V2) += nfsproc.o nfsxdr.o
nfsd-$(CONFIG_NFSD_V2_ACL) += nfs2acl.o
nfsd-$(CONFIG_NFSD_V3_ACL) += nfs3acl.o
diff --git a/fs/nfsd/nfs_netlink_gen.c b/fs/nfsd/nfs_netlink_gen.c
new file mode 100644
index 000000000000..4d71b80bf4a7
--- /dev/null
+++ b/fs/nfsd/nfs_netlink_gen.c
@@ -0,0 +1,32 @@
+// 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_server.yaml */
+/* YNL-GEN kernel source */
+
+#include <net/netlink.h>
+#include <net/genetlink.h>
+
+#include "nfs_netlink_gen.h"
+
+#include <uapi/linux/nfsd_server.h>
+
+/* Ops table for nfsd_server */
+static const struct genl_split_ops nfsd_server_nl_ops[] = {
+ {
+ .cmd = NFSD_CMD_RPC_STATUS_GET,
+ .start = nfsd_server_nl_rpc_status_get_start,
+ .dumpit = nfsd_server_nl_rpc_status_get_dumpit,
+ .done = nfsd_server_nl_rpc_status_get_done,
+ .flags = GENL_CMD_CAP_DUMP,
+ },
+};
+
+struct genl_family nfsd_server_nl_family __ro_after_init = {
+ .name = NFSD_SERVER_FAMILY_NAME,
+ .version = NFSD_SERVER_FAMILY_VERSION,
+ .netnsok = true,
+ .parallel_ops = true,
+ .module = THIS_MODULE,
+ .split_ops = nfsd_server_nl_ops,
+ .n_split_ops = ARRAY_SIZE(nfsd_server_nl_ops),
+};
diff --git a/fs/nfsd/nfs_netlink_gen.h b/fs/nfsd/nfs_netlink_gen.h
new file mode 100644
index 000000000000..f66b29e528c1
--- /dev/null
+++ b/fs/nfsd/nfs_netlink_gen.h
@@ -0,0 +1,22 @@
+/* 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_server.yaml */
+/* YNL-GEN kernel header */
+
+#ifndef _LINUX_NFSD_SERVER_GEN_H
+#define _LINUX_NFSD_SERVER_GEN_H
+
+#include <net/netlink.h>
+#include <net/genetlink.h>
+
+#include <uapi/linux/nfsd_server.h>
+
+int nfsd_server_nl_rpc_status_get_start(struct netlink_callback *cb);
+int nfsd_server_nl_rpc_status_get_done(struct netlink_callback *cb);
+
+int nfsd_server_nl_rpc_status_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb);
+
+extern struct genl_family nfsd_server_nl_family;
+
+#endif /* _LINUX_NFSD_SERVER_GEN_H */
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 33f80d289d63..1be66088849c 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1495,6 +1495,22 @@ static int create_proc_exports_entry(void)
unsigned int nfsd_net_id;
+int nfsd_server_nl_rpc_status_get_start(struct netlink_callback *cb)
+{
+ return 0;
+}
+
+int nfsd_server_nl_rpc_status_get_done(struct netlink_callback *cb)
+{
+ return 0;
+}
+
+int nfsd_server_nl_rpc_status_get_dumpit(struct sk_buff *skb,
+ 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
diff --git a/include/uapi/linux/nfsd_server.h b/include/uapi/linux/nfsd_server.h
new file mode 100644
index 000000000000..c9ee00ceca3b
--- /dev/null
+++ b/include/uapi/linux/nfsd_server.h
@@ -0,0 +1,49 @@
+/* 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_server.yaml */
+/* YNL-GEN uapi header */
+
+#ifndef _UAPI_LINUX_NFSD_SERVER_H
+#define _UAPI_LINUX_NFSD_SERVER_H
+
+#define NFSD_SERVER_FAMILY_NAME "nfsd_server"
+#define NFSD_SERVER_FAMILY_VERSION 1
+
+enum nfsd_rpc_status_comp_attr {
+ NFSD_ATTR_RPC_STATUS_COMP_UNSPEC,
+ NFSD_ATTR_RPC_STATUS_COMP_OP,
+
+ __NFSD_ATTR_RPC_STATUS_COMP_MAX,
+ NFSD_ATTR_RPC_STATUS_COMP_MAX = (__NFSD_ATTR_RPC_STATUS_COMP_MAX - 1)
+};
+
+enum nfsd_rpc_status_attr {
+ NFSD_ATTR_RPC_STATUS_UNSPEC,
+ NFSD_ATTR_RPC_STATUS_XID,
+ NFSD_ATTR_RPC_STATUS_FLAGS,
+ NFSD_ATTR_RPC_STATUS_PROG,
+ NFSD_ATTR_RPC_STATUS_VERSION,
+ NFSD_ATTR_RPC_STATUS_PROC,
+ NFSD_ATTR_RPC_STATUS_SERVICE_TIME,
+ NFSD_ATTR_RPC_STATUS_PAD,
+ NFSD_ATTR_RPC_STATUS_SADDR4,
+ NFSD_ATTR_RPC_STATUS_DADDR4,
+ NFSD_ATTR_RPC_STATUS_SADDR6,
+ NFSD_ATTR_RPC_STATUS_DADDR6,
+ NFSD_ATTR_RPC_STATUS_SPORT,
+ NFSD_ATTR_RPC_STATUS_DPORT,
+ NFSD_ATTR_RPC_STATUS_COMPOND_OP,
+
+ __NFSD_ATTR_RPC_STATUS_MAX,
+ NFSD_ATTR_RPC_STATUS_MAX = (__NFSD_ATTR_RPC_STATUS_MAX - 1)
+};
+
+enum nfsd_commands {
+ NFSD_CMD_UNSPEC,
+ NFSD_CMD_RPC_STATUS_GET,
+
+ __NFSD_CMD_MAX,
+ NFSD_CMD_MAX = (__NFSD_CMD_MAX - 1)
+};
+
+#endif /* _UAPI_LINUX_NFSD_SERVER_H */
--
2.41.0
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