1 files changed, 116 insertions, 0 deletions
diff --git a/include/linux/nfsd/syscall.h b/include/linux/nfsd/syscall.h
new file mode 100644
index 00000000000..812bc1e160d
--- /dev/null
+++ b/include/linux/nfsd/syscall.h
@@ -0,0 +1,116 @@
+/*
+ * include/linux/nfsd/syscall.h
+ *
+ * This file holds all declarations for the knfsd syscall interface.
+ *
+ * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef NFSD_SYSCALL_H
+#define NFSD_SYSCALL_H
+
+#include <linux/types.h>
+#include <linux/nfsd/export.h>
+
+/*
+ * Version of the syscall interface
+ */
+#define NFSCTL_VERSION		0x0201
+
+/*
+ * These are the commands understood by nfsctl().
+ */
+#define NFSCTL_SVC		0	/* This is a server process. */
+#define NFSCTL_ADDCLIENT	1	/* Add an NFS client. */
+#define NFSCTL_DELCLIENT	2	/* Remove an NFS client. */
+#define NFSCTL_EXPORT		3	/* export a file system. */
+#define NFSCTL_UNEXPORT		4	/* unexport a file system. */
+/*#define NFSCTL_UGIDUPDATE	5	/ * update a client's uid/gid map. DISCARDED */
+/*#define NFSCTL_GETFH		6	/ * get an fh by ino DISCARDED */
+#define NFSCTL_GETFD		7	/* get an fh by path (used by mountd) */
+#define	NFSCTL_GETFS		8	/* get an fh by path with max FH len */
+
+/* SVC */
+struct nfsctl_svc {
+	unsigned short		svc_port;
+	int			svc_nthreads;
+};
+
+/* ADDCLIENT/DELCLIENT */
+struct nfsctl_client {
+	char			cl_ident[NFSCLNT_IDMAX+1];
+	int			cl_naddr;
+	struct in_addr		cl_addrlist[NFSCLNT_ADDRMAX];
+	int			cl_fhkeytype;
+	int			cl_fhkeylen;
+	unsigned char		cl_fhkey[NFSCLNT_KEYMAX];
+};
+
+/* EXPORT/UNEXPORT */
+struct nfsctl_export {
+	char			ex_client[NFSCLNT_IDMAX+1];
+	char			ex_path[NFS_MAXPATHLEN+1];
+	__kernel_old_dev_t	ex_dev;
+	__kernel_ino_t		ex_ino;
+	int			ex_flags;
+	__kernel_uid_t		ex_anon_uid;
+	__kernel_gid_t		ex_anon_gid;
+};
+
+/* GETFD */
+struct nfsctl_fdparm {
+	struct sockaddr		gd_addr;
+	char			gd_path[NFS_MAXPATHLEN+1];
+	int			gd_version;
+};
+
+/* GETFS - GET Filehandle with Size */
+struct nfsctl_fsparm {
+	struct sockaddr		gd_addr;
+	char			gd_path[NFS_MAXPATHLEN+1];
+	int			gd_maxlen;
+};
+
+/*
+ * This is the argument union.
+ */
+struct nfsctl_arg {
+	int			ca_version;	/* safeguard */
+	union {
+		struct nfsctl_svc	u_svc;
+		struct nfsctl_client	u_client;
+		struct nfsctl_export	u_export;
+		struct nfsctl_fdparm	u_getfd;
+		struct nfsctl_fsparm	u_getfs;
+		/*
+		 * The following dummy member is needed to preserve binary compatibility
+		 * on platforms where alignof(void*)>alignof(int).  It's needed because
+		 * this union used to contain a member (u_umap) which contained a
+		 * pointer.
+		 */
+		void *u_ptr;
+	} u;
+#define ca_svc		u.u_svc
+#define ca_client	u.u_client
+#define ca_export	u.u_export
+#define ca_getfd	u.u_getfd
+#define	ca_getfs	u.u_getfs
+};
+
+union nfsctl_res {
+	__u8			cr_getfh[NFS_FHSIZE];
+	struct knfsd_fh		cr_getfs;
+};
+
+#ifdef __KERNEL__
+/*
+ * Kernel syscall implementation.
+ */
+extern int		exp_addclient(struct nfsctl_client *ncp);
+extern int		exp_delclient(struct nfsctl_client *ncp);
+extern int		exp_export(struct nfsctl_export *nxp);
+extern int		exp_unexport(struct nfsctl_export *nxp);
+
+#endif /* __KERNEL__ */
+
+#endif /* NFSD_SYSCALL_H */