nfs4.h

/*
 * tiny_initramfs - Minimalistic initramfs implementation
 *
 * nfs4.h: NFSv4 kernel interface definition
 * Copyright (C) 2002 Trond Myklebust <trond.myklebust@fys.uio.no>
 * Originally licensed under the GPLv2+.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Note:
 *
 * This file is a slightly modified nfs4_mount.h from the util-linux
 * package.
 */

#ifndef TINY_INITRD_NFS4_H
#define TINY_INITRD_NFS4_H

/*
 * WARNING!  Do not delete or change the order of these fields.  If
 * a new field is required then add it to the end.  The version field
 * tracks which fields are present.  This will ensure some measure of
 * mount-to-kernel version compatibility.  Some of these aren't used yet
 * but here they are anyway.
 */
#define NFS4_MOUNT_VERSION      1

struct nfs_string {
        unsigned int len;
        const char* data;
};

struct nfs4_mount_data {
        int version;                            /* 1 */
        int flags;                              /* 1 */
        int rsize;                              /* 1 */
        int wsize;                              /* 1 */
        int timeo;                              /* 1 */
        int retrans;                            /* 1 */
        int acregmin;                           /* 1 */
        int acregmax;                           /* 1 */
        int acdirmin;                           /* 1 */
        int acdirmax;                           /* 1 */

        /* see the definition of 'struct clientaddr4' in RFC3010 */
        struct nfs_string client_addr;          /* 1 */

        /* Mount path */
        struct nfs_string mnt_path;             /* 1 */

        /* Server details */
        struct nfs_string hostname;             /* 1 */
        /* Server IP address */
        unsigned int host_addrlen;              /* 1 */
        struct sockaddr* host_addr;             /* 1 */
  
        /* Transport protocol to use */
        int proto;                              /* 1 */

        /* Pseudo-flavours to use for authentication. See RFC2623 */
        int auth_flavourlen;                    /* 1 */
        int *auth_flavours;                     /* 1 */
};

/* bits in the flags field */
/* Note: the fields that correspond to existing NFSv2/v3 mount options
 *       should mirror the values from include/linux/nfs_mount.h
 */
#define NFS4_MOUNT_SOFT         0x0001  /* 1 */
#define NFS4_MOUNT_INTR         0x0002  /* 1 */
#define NFS4_MOUNT_NOCTO        0x0010  /* 1 */
#define NFS4_MOUNT_NOAC         0x0020  /* 1 */
#define NFS4_MOUNT_STRICTLOCK   0x1000  /* 1 */
#define NFS4_MOUNT_UNSHARED     0x8000  /* 5 */
#define NFS4_MOUNT_FLAGMASK     0xFFFF

#endif /* !defined(TINY_INITRD_NFS4_H) */