nfsd: Remove deprecated nfsctl system call and related code.

As promised in feature-removal-schedule.txt it is time to
remove the nfsctl system call.

Userspace has perferred to not use this call throughout 2.6 and it has been
excluded in the default configuration since 2.6.36 (9 months ago).

So this patch removes all the code that was being compiled out.

There are still references to sys_nfsctl in various arch systemcall tables
and related code.  These should be cleaned out too, probably in the next
merge window.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 0 insertions, 343 deletions

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 2b1449dd2f49..c7716143cbd1 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -24,15 +24,6 @@
  */
 enum {
 	NFSD_Root = 1,
-#ifdef CONFIG_NFSD_DEPRECATED
-	NFSD_Svc,
-	NFSD_Add,
-	NFSD_Del,
-	NFSD_Export,
-	NFSD_Unexport,
-	NFSD_Getfd,
-	NFSD_Getfs,
-#endif
 	NFSD_List,
 	NFSD_Export_features,
 	NFSD_Fh,
@@ -59,15 +50,6 @@ enum {
 /*
  * write() for these nodes.
  */
-#ifdef CONFIG_NFSD_DEPRECATED
-static ssize_t write_svc(struct file *file, char *buf, size_t size);
-static ssize_t write_add(struct file *file, char *buf, size_t size);
-static ssize_t write_del(struct file *file, char *buf, size_t size);
-static ssize_t write_export(struct file *file, char *buf, size_t size);
-static ssize_t write_unexport(struct file *file, char *buf, size_t size);
-static ssize_t write_getfd(struct file *file, char *buf, size_t size);
-static ssize_t write_getfs(struct file *file, char *buf, size_t size);
-#endif
 static ssize_t write_filehandle(struct file *file, char *buf, size_t size);
 static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size);
 static ssize_t write_unlock_fs(struct file *file, char *buf, size_t size);
@@ -83,15 +65,6 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
 #endif
 
 static ssize_t (*write_op[])(struct file *, char *, size_t) = {
-#ifdef CONFIG_NFSD_DEPRECATED
-	[NFSD_Svc] = write_svc,
-	[NFSD_Add] = write_add,
-	[NFSD_Del] = write_del,
-	[NFSD_Export] = write_export,
-	[NFSD_Unexport] = write_unexport,
-	[NFSD_Getfd] = write_getfd,
-	[NFSD_Getfs] = write_getfs,
-#endif
 	[NFSD_Fh] = write_filehandle,
 	[NFSD_FO_UnlockIP] = write_unlock_ip,
 	[NFSD_FO_UnlockFS] = write_unlock_fs,
@@ -130,16 +103,6 @@ static ssize_t nfsctl_transaction_write(struct file *file, const char __user *bu
 
 static ssize_t nfsctl_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos)
 {
-#ifdef CONFIG_NFSD_DEPRECATED
-	static int warned;
-	if (file->f_dentry->d_name.name[0] == '.' && !warned) {
-		printk(KERN_INFO
-		       "Warning: \"%s\" uses deprecated NFSD interface: %s."
-		       "  This will be removed in 2.6.40\n",
-		       current->comm, file->f_dentry->d_name.name);
-		warned = 1;
-	}
-#endif
 	if (! file->private_data) {
 		/* An attempt to read a transaction file without writing
 		 * causes a 0-byte write so that the file can return
@@ -226,303 +189,6 @@ static const struct file_operations pool_stats_operations = {
  * payload - write methods
  */
 
-#ifdef CONFIG_NFSD_DEPRECATED
-/**
- * write_svc - Start kernel's NFSD server
- *
- * Deprecated.  /proc/fs/nfsd/threads is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- *			buf:	struct nfsctl_svc
- *				svc_port:	port number of this
- *						server's listener
- *				svc_nthreads:	number of threads to start
- *			size:	size in bytes of passed in nfsctl_svc
- * Output:
- *	On success:	returns zero
- *	On error:	return code is negative errno value
- */
-static ssize_t write_svc(struct file *file, char *buf, size_t size)
-{
-	struct nfsctl_svc *data;
-	int err;
-	if (size < sizeof(*data))
-		return -EINVAL;
-	data = (struct nfsctl_svc*) buf;
-	err = nfsd_svc(data->svc_port, data->svc_nthreads);
-	if (err < 0)
-		return err;
-	return 0;
-}
-
-/**
- * write_add - Add or modify client entry in auth unix cache
- *
- * Deprecated.  /proc/net/rpc/auth.unix.ip is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- *			buf:	struct nfsctl_client
- *				cl_ident:	'\0'-terminated C string
- *						containing domain name
- *						of client
- *				cl_naddr:	no. of items in cl_addrlist
- *				cl_addrlist:	array of client addresses
- *				cl_fhkeytype:	ignored
- *				cl_fhkeylen:	ignored
- *				cl_fhkey:	ignored
- *			size:	size in bytes of passed in nfsctl_client
- * Output:
- *	On success:	returns zero
- *	On error:	return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since
- * nfsctl_client.cl_addrlist contains only in_addr fields for addresses.
- */
-static ssize_t write_add(struct file *file, char *buf, size_t size)
-{
-	struct nfsctl_client *data;
-	if (size < sizeof(*data))
-		return -EINVAL;
-	data = (struct nfsctl_client *)buf;
-	return exp_addclient(data);
-}
-
-/**
- * write_del - Remove client from auth unix cache
- *
- * Deprecated.  /proc/net/rpc/auth.unix.ip is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- *			buf:	struct nfsctl_client
- *				cl_ident:	'\0'-terminated C string
- *						containing domain name
- *						of client
- *				cl_naddr:	ignored
- *				cl_addrlist:	ignored
- *				cl_fhkeytype:	ignored
- *				cl_fhkeylen:	ignored
- *				cl_fhkey:	ignored
- *			size:	size in bytes of passed in nfsctl_client
- * Output:
- *	On success:	returns zero
- *	On error:	return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since
- * nfsctl_client.cl_addrlist contains only in_addr fields for addresses.
- */
-static ssize_t write_del(struct file *file, char *buf, size_t size)
-{
-	struct nfsctl_client *data;
-	if (size < sizeof(*data))
-		return -EINVAL;
-	data = (struct nfsctl_client *)buf;
-	return exp_delclient(data);
-}
-
-/**
- * write_export - Export part or all of a local file system
- *
- * Deprecated.  /proc/net/rpc/{nfsd.export,nfsd.fh} are preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- *			buf:	struct nfsctl_export
- *				ex_client:	'\0'-terminated C string
- *						containing domain name
- *						of client allowed to access
- *						this export
- *				ex_path:	'\0'-terminated C string
- *						containing pathname of
- *						directory in local file system
- *				ex_dev:		fsid to use for this export
- *				ex_ino:		ignored
- *				ex_flags:	export flags for this export
- *				ex_anon_uid:	UID to use for anonymous
- *						requests
- *				ex_anon_gid:	GID to use for anonymous
- *						requests
- *			size:	size in bytes of passed in nfsctl_export
- * Output:
- *	On success:	returns zero
- *	On error:	return code is negative errno value
- */
-static ssize_t write_export(struct file *file, char *buf, size_t size)
-{
-	struct nfsctl_export *data;
-	if (size < sizeof(*data))
-		return -EINVAL;
-	data = (struct nfsctl_export*)buf;
-	return exp_export(data);
-}
-
-/**
- * write_unexport - Unexport a previously exported file system
- *
- * Deprecated.  /proc/net/rpc/{nfsd.export,nfsd.fh} are preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- *			buf:	struct nfsctl_export
- *				ex_client:	'\0'-terminated C string
- *						containing domain name
- *						of client no longer allowed
- *						to access this export
- *				ex_path:	'\0'-terminated C string
- *						containing pathname of
- *						directory in local file system
- *				ex_dev:		ignored
- *				ex_ino:		ignored
- *				ex_flags:	ignored
- *				ex_anon_uid:	ignored
- *				ex_anon_gid:	ignored
- *			size:	size in bytes of passed in nfsctl_export
- * Output:
- *	On success:	returns zero
- *	On error:	return code is negative errno value
- */
-static ssize_t write_unexport(struct file *file, char *buf, size_t size)
-{
-	struct nfsctl_export *data;
-
-	if (size < sizeof(*data))
-		return -EINVAL;
-	data = (struct nfsctl_export*)buf;
-	return exp_unexport(data);
-}
-
-/**
- * write_getfs - Get a variable-length NFS file handle by path
- *
- * Deprecated.  /proc/fs/nfsd/filehandle is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- *			buf:	struct nfsctl_fsparm
- *				gd_addr:	socket address of client
- *				gd_path:	'\0'-terminated C string
- *						containing pathname of
- *						directory in local file system
- *				gd_maxlen:	maximum size of returned file
- *						handle
- *			size:	size in bytes of passed in nfsctl_fsparm
- * Output:
- *	On success:	passed-in buffer filled with a knfsd_fh structure
- *			(a variable-length raw NFS file handle);
- *			return code is the size in bytes of the file handle
- *	On error:	return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since gd_addr
- * is the same size as a struct sockaddr_in.
- */
-static ssize_t write_getfs(struct file *file, char *buf, size_t size)
-{
-	struct nfsctl_fsparm *data;
-	struct sockaddr_in *sin;
-	struct auth_domain *clp;
-	int err = 0;
-	struct knfsd_fh *res;
-	struct in6_addr in6;
-
-	if (size < sizeof(*data))
-		return -EINVAL;
-	data = (struct nfsctl_fsparm*)buf;
-	err = -EPROTONOSUPPORT;
-	if (data->gd_addr.sa_family != AF_INET)
-		goto out;
-	sin = (struct sockaddr_in *)&data->gd_addr;
-	if (data->gd_maxlen > NFS3_FHSIZE)
-		data->gd_maxlen = NFS3_FHSIZE;
-
-	res = (struct knfsd_fh*)buf;
-
-	exp_readlock();
-
-	ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
-
-	clp = auth_unix_lookup(&init_net, &in6);
-	if (!clp)
-		err = -EPERM;
-	else {
-		err = exp_rootfh(clp, data->gd_path, res, data->gd_maxlen);
-		auth_domain_put(clp);
-	}
-	exp_readunlock();
-	if (err == 0)
-		err = res->fh_size + offsetof(struct knfsd_fh, fh_base);
- out:
-	return err;
-}
-
-/**
- * write_getfd - Get a fixed-length NFS file handle by path (used by mountd)
- *
- * Deprecated.  /proc/fs/nfsd/filehandle is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- *			buf:	struct nfsctl_fdparm
- *				gd_addr:	socket address of client
- *				gd_path:	'\0'-terminated C string
- *						containing pathname of
- *						directory in local file system
- *				gd_version:	fdparm structure version
- *			size:	size in bytes of passed in nfsctl_fdparm
- * Output:
- *	On success:	passed-in buffer filled with nfsctl_res
- *			(a fixed-length raw NFS file handle);
- *			return code is the size in bytes of the file handle
- *	On error:	return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since gd_addr
- * is the same size as a struct sockaddr_in.
- */
-static ssize_t write_getfd(struct file *file, char *buf, size_t size)
-{
-	struct nfsctl_fdparm *data;
-	struct sockaddr_in *sin;
-	struct auth_domain *clp;
-	int err = 0;
-	struct knfsd_fh fh;
-	char *res;
-	struct in6_addr in6;
-
-	if (size < sizeof(*data))
-		return -EINVAL;
-	data = (struct nfsctl_fdparm*)buf;
-	err = -EPROTONOSUPPORT;
-	if (data->gd_addr.sa_family != AF_INET)
-		goto out;
-	err = -EINVAL;
-	if (data->gd_version < 2 || data->gd_version > NFSSVC_MAXVERS)
-		goto out;
-
-	res = buf;
-	sin = (struct sockaddr_in *)&data->gd_addr;
-	exp_readlock();
-
-	ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
-
-	clp = auth_unix_lookup(&init_net, &in6);
-	if (!clp)
-		err = -EPERM;
-	else {
-		err = exp_rootfh(clp, data->gd_path, &fh, NFS_FHSIZE);
-		auth_domain_put(clp);
-	}
-	exp_readunlock();
-
-	if (err == 0) {
-		memset(res,0, NFS_FHSIZE);
-		memcpy(res, &fh.fh_base, fh.fh_size);
-		err = NFS_FHSIZE;
-	}
- out:
-	return err;
-}
-#endif /* CONFIG_NFSD_DEPRECATED */
 
 /**
  * write_unlock_ip - Release all locks used by a client
@@ -1397,15 +1063,6 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
 static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
 {
 	static struct tree_descr nfsd_files[] = {
-#ifdef CONFIG_NFSD_DEPRECATED
-		[NFSD_Svc] = {".svc", &transaction_ops, S_IWUSR},
-		[NFSD_Add] = {".add", &transaction_ops, S_IWUSR},
-		[NFSD_Del] = {".del", &transaction_ops, S_IWUSR},
-		[NFSD_Export] = {".export", &transaction_ops, S_IWUSR},
-		[NFSD_Unexport] = {".unexport", &transaction_ops, S_IWUSR},
-		[NFSD_Getfd] = {".getfd", &transaction_ops, S_IWUSR|S_IRUSR},
-		[NFSD_Getfs] = {".getfs", &transaction_ops, S_IWUSR|S_IRUSR},
-#endif
 		[NFSD_List] = {"exports", &exports_operations, S_IRUGO},
 		[NFSD_Export_features] = {"export_features",
 					&export_features_operations, S_IRUGO},