/* packet-mount.c

 * Routines for mount dissection

 *

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

 * Copied from packet-smb.c

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 */

#include "config.h"

#include <epan/exceptions.h>

#include <epan/to_str.h>

#include <epan/strutil.h>

#include <epan/tfs.h>

#include <wsutil/array.h>

#include "packet-mount.h"

#include "packet-nfs.h"

void proto_register_mount(void);

void proto_reg_handoff_mount(void);

static int proto_mount;

static int proto_sgi_mount;

static int hf_mount_procedure_v1;

static int hf_mount_procedure_v2;

static int hf_mount_procedure_v3;

static int hf_sgi_mount_procedure_v1;

static int hf_mount_path;

static int hf_mount3_status;

static int hf_mount_mountlist_hostname;

static int hf_mount_mountlist_directory;

static int hf_mount_mountlist;

static int hf_mount_groups_group;

static int hf_mount_groups;

static int hf_mount_exportlist_directory;

static int hf_mount_exportlist;

static int hf_mount_has_options;

static int hf_mount_options;

static int hf_mount_pathconf_link_max;

static int hf_mount_pathconf_max_canon;

static int hf_mount_pathconf_max_input;

static int hf_mount_pathconf_name_max;

static int hf_mount_pathconf_path_max;

static int hf_mount_pathconf_pipe_buf;

static int hf_mount_pathconf_vdisable;

static int hf_mount_pathconf_mask;

static int hf_mount_pathconf_error_all;

static int hf_mount_pathconf_error_link_max;

static int hf_mount_pathconf_error_max_canon;

static int hf_mount_pathconf_error_max_input;

static int hf_mount_pathconf_error_name_max;

static int hf_mount_pathconf_error_path_max;

static int hf_mount_pathconf_error_pipe_buf;

static int hf_mount_pathconf_chown_restricted;

static int hf_mount_pathconf_no_trunc;

static int hf_mount_pathconf_error_vdisable;

static int hf_mount_statvfs_bsize;

static int hf_mount_statvfs_frsize;

static int hf_mount_statvfs_blocks;

static int hf_mount_statvfs_bfree;

static int hf_mount_statvfs_bavail;

static int hf_mount_statvfs_files;

static int hf_mount_statvfs_ffree;

static int hf_mount_statvfs_favail;

static int hf_mount_statvfs_fsid;

static int hf_mount_statvfs_basetype;

static int hf_mount_statvfs_flag;

static int hf_mount_statvfs_flag_rdonly;

static int hf_mount_statvfs_flag_nosuid;

static int hf_mount_statvfs_flag_notrunc;

static int hf_mount_statvfs_flag_nodev;

static int hf_mount_statvfs_flag_grpid;

static int hf_mount_statvfs_flag_local;

static int hf_mount_statvfs_namemax;

static int hf_mount_statvfs_fstr;

static int hf_mount_flavors;

static int hf_mount_flavor;

static int ett_mount;

static int ett_mount_mountlist;

static int ett_mount_groups;

static int ett_mount_exportlist;

static int ett_mount_pathconf_mask;

static int ett_mount_statvfs_flag;

/* RFC 1813, Page 107 */

static const value_string mount3_mountstat3[] =

{

  { 0,  "OK" },

  { 1,  "ERR_PERM" },

  { 2,  "ERR_NOENT" },

  { 5,  "ERR_IO" },

  { 13, "ERR_ACCESS" },

  { 20, "ERR_NOTDIR" },

  { 22, "ERR_INVAL" },

  { 63, "ERR_NAMETOOLONG" },

  { 10004,  "ERR_NOTSUPP" },

  { 10006,  "ERR_SERVERFAULT" },

  { 0,  NULL }

};

/* RFC 1094, Page 24 */

/* This function dissects fhstatus for v1 and v2 of the mount protocol.

 * Formally, hf_mount3_status only define the status codes returned by version

 * 3 of the protocol.

 * Though not formally defined in the standard, we use the same

 * value-to-string mappings as version 3 since we believe that this mapping

 * is consistent with most v1 and v2 implementations.

 */

static int

dissect_fhstatus(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, rpc_call_info_value* civ)

{

  int32_t status;

  status=tvb_get_ntohl(tvb,offset);

  offset = dissect_rpc_uint32(tvb,tree,hf_mount3_status,offset);

  switch (status) {

    case 0:

      offset = dissect_fhandle(tvb,offset,pinfo,tree,"fhandle", NULL, civ);

    break;

    default:

      /* void */

      col_append_fstr(

          pinfo->cinfo, COL_INFO, " Error:%s",

          val_to_str(status, mount3_mountstat3,

              "Unknown (0x%08X)"));

    break;

  }

  return offset;

}

static int

dissect_mount_dirpath_call(tvbuff_t *tvb, packet_info *pinfo,

    proto_tree *tree, void* data)

{

  const char *mountpoint=NULL;

  int offset = 0;

  if((!pinfo->fd->visited) && nfs_file_name_snooping){

    rpc_call_info_value *civ=(rpc_call_info_value *)data;

    if(civ->request && (civ->proc==1)){

      uint32_t len_field;

      len_field = tvb_get_ntohl(tvb, offset);

      if (len_field < ITEM_LABEL_LENGTH) {

        char *name, *ptr;

        int addr_len, name_len;

        name = address_to_str(pinfo->pool, &pinfo->dst);

        addr_len = (int)strlen(name);

        /* IP address, colon, path, terminating 0 */

        name_len = addr_len + 1 + len_field + 1;

        name = (char *)wmem_realloc(pinfo->pool,

            (void *)name, name_len);

        ptr = name + addr_len;

        *ptr++ = ':';

        tvb_memcpy(tvb, ptr, offset+4, len_field);

        ptr += len_field;

        *ptr = 0;

        nfs_name_snoop_add_name(civ->xid, tvb, -1, name_len, 0, 0, name);

      }

    }

  }

  offset = dissect_rpc_string(tvb,tree,hf_mount_path,offset,&mountpoint);

  col_append_fstr(pinfo->cinfo, COL_INFO," %s", mountpoint);

  return offset;

}

/* RFC 1094, Page 25,26 */

static int

dissect_mount1_mnt_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)

{

  return dissect_fhstatus(tvb,0,pinfo,tree,(rpc_call_info_value*)data);

}

/* RFC 1094, Page 26 */

/* RFC 1813, Page 110 */

static int

dissect_mountlist(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)

{

  proto_item* lock_item;

  proto_tree* lock_tree;

  int old_offset = offset;

  const char* hostname;

  const char* directory;

  lock_item = proto_tree_add_item(tree, hf_mount_mountlist, tvb,

          offset, -1, ENC_NA);

  lock_tree = proto_item_add_subtree(lock_item, ett_mount_mountlist);

  offset = dissect_rpc_string(tvb, lock_tree,

      hf_mount_mountlist_hostname, offset, &hostname);

  offset = dissect_rpc_string(tvb, lock_tree,

      hf_mount_mountlist_directory, offset, &directory);

  if (lock_item) {

    /* now we have a nicer string */

    proto_item_set_text(lock_item, "Mount List Entry: %s:%s", hostname, directory);

    /* now we know, that mountlist is shorter */

    proto_item_set_len(lock_item, offset - old_offset);

  }

  return offset;

}

/* RFC 1094, Page 26 */

/* RFC 1813, Page 110 */

static int

dissect_mount_dump_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)

{

  return dissect_rpc_list(tvb, pinfo, tree, 0,

    dissect_mountlist, NULL);

}

/* RFC 1094, Page 26 */

/* RFC 1813, Page 110 */

static int

dissect_group(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, void* data)

{

  wmem_strbuf_t *group_name_list = (wmem_strbuf_t *)data;

  const char *group_name;

  offset = dissect_rpc_string(tvb, tree,

      hf_mount_groups_group, offset, &group_name);

  if (wmem_strbuf_get_len(group_name_list) != 0)

    wmem_strbuf_append_c(group_name_list, ' ');

  wmem_strbuf_append(group_name_list, group_name);

  return offset;

}

/* RFC 1094, Page 26 */

/* RFC 1813, Page 113 */

static int

dissect_exportlist(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, void* data _U_)

{

  proto_item* exportlist_item = NULL;

  proto_tree* exportlist_tree = NULL;

  int old_offset = offset;

  int groups_offset;

  proto_item* groups_item = NULL;

  proto_item* groups_tree = NULL;

  const char* directory;

  wmem_strbuf_t* group_name_list_strbuf;

  const char* group_name_list;

  if (tree) {

    exportlist_item = proto_tree_add_item(tree, hf_mount_exportlist, tvb, offset, -1, ENC_NA);

    exportlist_tree = proto_item_add_subtree(exportlist_item, ett_mount_exportlist);

  }

  offset = dissect_rpc_string(tvb, exportlist_tree,

      hf_mount_exportlist_directory, offset, &directory);

  groups_offset = offset;

  groups_item = proto_tree_add_item(exportlist_tree, hf_mount_groups, tvb, offset, -1, ENC_NA);

  groups_tree = proto_item_add_subtree(groups_item, ett_mount_groups);

  group_name_list_strbuf = wmem_strbuf_new(pinfo->pool, "");

  offset = dissect_rpc_list(tvb, pinfo, groups_tree, offset,

    dissect_group, (void *)group_name_list_strbuf);

  if (groups_item) {

    /* mark empty lists */

    if (offset - groups_offset == 4) {

      proto_item_set_text(groups_item, "Groups: empty");

    }

    /* now we know, that groups is shorter */

    proto_item_set_len(groups_item, offset - groups_offset);

  }

  group_name_list = wmem_strbuf_finalize(group_name_list_strbuf);

  if (exportlist_item) {

    /* now we have a nicer string */

    proto_item_set_text(exportlist_item,

        "Export List Entry: %s -> %s",

        format_text(pinfo->pool, directory, strlen(directory)),

        format_text(pinfo->pool, group_name_list, strlen(group_name_list)));

    /* now we know, that exportlist is shorter */

    proto_item_set_len(exportlist_item, offset - old_offset);

  }

  return offset;

}

/* RFC 1094, Page 26 */

/* RFC 1813, Page 113 */

static int

dissect_mount_export_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)

{

  return dissect_rpc_list(tvb, pinfo, tree, 0,

    dissect_exportlist, NULL);

}

#define OFFS_MASK 32  /* offset of the "pc_mask" field */

#define PC_ERROR_ALL    0x0001

#define PC_ERROR_LINK_MAX 0x0002

#define PC_ERROR_MAX_CANON  0x0004

#define PC_ERROR_MAX_INPUT  0x0008

#define PC_ERROR_NAME_MAX 0x0010

#define PC_ERROR_PATH_MAX 0x0020

#define PC_ERROR_PIPE_BUF 0x0040

#define PC_CHOWN_RESTRICTED 0x0080

#define PC_NO_TRUNC   0x0100

#define PC_ERROR_VDISABLE 0x0200

static const true_false_string tos_error_all = {

  "All info invalid",

  "Some or all info valid"

};

static const true_false_string tos_error_link_max = {

  "LINK_MAX invalid",

  "LINK_MAX valid"

};

static const true_false_string tos_error_max_canon = {

  "MAX_CANON invalid",

  "MAX_CANON valid"

};

static const true_false_string tos_error_max_input = {

  "MAX_INPUT invalid",

  "MAX_INPUT valid"

};

static const true_false_string tos_error_name_max = {

  "NAME_MAX invalid",

  "NAME_MAX valid"

};

static const true_false_string tos_error_path_max = {

  "PATH_MAX invalid",

  "PATH_MAX valid"

};

static const true_false_string tos_error_pipe_buf = {

  "PIPE_BUF invalid",

  "PIPE_BUF valid"

};

static const true_false_string tos_chown_restricted = {

  "Only a privileged user can change the ownership of a file",

  "Users may give away their own files"

};

static const true_false_string tos_no_trunc = {

  "File names that are too long will get an error",

  "File names that are too long will be truncated"

};

static const true_false_string tos_error_vdisable = {

  "VDISABLE invalid",

  "VDISABLE valid"

};

static int

dissect_mount_pathconf_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)

{

  uint32_t pc_mask;

  static int * const flags[] = {

    &hf_mount_pathconf_error_all,

    &hf_mount_pathconf_error_link_max,

    &hf_mount_pathconf_error_max_canon,

    &hf_mount_pathconf_error_max_input,

    &hf_mount_pathconf_error_name_max,

    &hf_mount_pathconf_error_path_max,

    &hf_mount_pathconf_error_pipe_buf,

    &hf_mount_pathconf_chown_restricted,

    &hf_mount_pathconf_no_trunc,

    &hf_mount_pathconf_error_vdisable,

    NULL

  };

  int offset = 0;

  /*

   * Extract the mask first, so we know which other fields the

   * server was able to return to us.

   */

  pc_mask = tvb_get_ntohl(tvb, offset+OFFS_MASK) & 0xffff;

  if (!(pc_mask & (PC_ERROR_LINK_MAX|PC_ERROR_ALL))) {

    dissect_rpc_uint32(tvb,tree,hf_mount_pathconf_link_max,offset);

  }

  offset += 4;

  if (!(pc_mask & (PC_ERROR_MAX_CANON|PC_ERROR_ALL))) {

    proto_tree_add_item(tree,

        hf_mount_pathconf_max_canon,tvb,offset+2,2,

        tvb_get_ntohs(tvb,offset)&0xffff);

  }

  offset += 4;

  if (!(pc_mask & (PC_ERROR_MAX_INPUT|PC_ERROR_ALL))) {

    proto_tree_add_item(tree,

        hf_mount_pathconf_max_input,tvb,offset+2,2,

        tvb_get_ntohs(tvb,offset)&0xffff);

  }

  offset += 4;

  if (!(pc_mask & (PC_ERROR_NAME_MAX|PC_ERROR_ALL))) {

    proto_tree_add_item(tree,

        hf_mount_pathconf_name_max,tvb,offset+2,2,

        tvb_get_ntohs(tvb,offset)&0xffff);

  }

  offset += 4;

  if (!(pc_mask & (PC_ERROR_PATH_MAX|PC_ERROR_ALL))) {

    proto_tree_add_item(tree,

        hf_mount_pathconf_path_max,tvb,offset+2,2,

        tvb_get_ntohs(tvb,offset)&0xffff);

  }

  offset += 4;

  if (!(pc_mask & (PC_ERROR_PIPE_BUF|PC_ERROR_ALL))) {

    proto_tree_add_item(tree,

        hf_mount_pathconf_pipe_buf,tvb,offset+2,2,

        tvb_get_ntohs(tvb,offset)&0xffff);

  }

  offset += 4;

  offset += 4;  /* skip "pc_xxx" pad field */

  if (!(pc_mask & (PC_ERROR_VDISABLE|PC_ERROR_ALL))) {

    proto_tree_add_item(tree,

        hf_mount_pathconf_vdisable,tvb,offset+3,1,

        tvb_get_ntohs(tvb,offset)&0xffff);

  }

  offset += 4;

  proto_tree_add_bitmask(tree, tvb, offset+2, hf_mount_pathconf_mask, ett_mount_pathconf_mask, flags, ENC_BIG_ENDIAN);

  offset += 8;

  return offset;

}

/* RFC 1813, Page 107 */

static int

dissect_mountstat3(packet_info *pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int hfindex, uint32_t *status)

{

  uint32_t mountstat3;

  mountstat3 = tvb_get_ntohl(tvb, offset);

  if(mountstat3){

    col_append_fstr(

        pinfo->cinfo, COL_INFO, " Error:%s",

        val_to_str(mountstat3, mount3_mountstat3,

            "Unknown (0x%08X)"));

  }

  offset = dissect_rpc_uint32(tvb,tree,hfindex,offset);

  *status = mountstat3;

  return offset;

}

/* RFC 1831, Page 109 */

static int

dissect_mount3_mnt_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)

{

  uint32_t status;

  uint32_t auth_flavors;

  uint32_t auth_flavor;

  uint32_t auth_flavor_i;

  int offset = 0;

  offset = dissect_mountstat3(pinfo,tvb,tree,offset,hf_mount3_status,&status);

  switch (status) {

    case 0:

      offset = dissect_nfs3_fh(tvb,offset,pinfo,tree,"fhandle",NULL,(rpc_call_info_value*)data);

      auth_flavors = tvb_get_ntohl(tvb, offset);

      proto_tree_add_uint(tree,hf_mount_flavors, tvb,

        offset, 4, auth_flavors);

      offset += 4;

      for (auth_flavor_i = 0 ; auth_flavor_i < auth_flavors ; auth_flavor_i++) {

        auth_flavor = tvb_get_ntohl(tvb, offset);

        proto_tree_add_uint(tree,hf_mount_flavor, tvb,

          offset, 4, auth_flavor);

        offset += 4;

      }

    break;

    default:

      /* void */

    break;

  }

  return offset;

}

static int

dissect_sgi_exportlist(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)

{

  proto_item* exportlist_item = NULL;

  proto_tree* exportlist_tree = NULL;

  int old_offset = offset;

  const char* directory, *options;

  if (tree) {

    exportlist_item = proto_tree_add_item(tree, hf_mount_exportlist,

          tvb, offset, -1, ENC_NA);

    if (exportlist_item)

      exportlist_tree = proto_item_add_subtree(exportlist_item,

            ett_mount_exportlist);

  }

  offset = dissect_rpc_string(tvb, exportlist_tree,

      hf_mount_exportlist_directory, offset, &directory);

  offset = dissect_rpc_bool(tvb, exportlist_tree,

      hf_mount_has_options, offset);

  offset = dissect_rpc_string(tvb, exportlist_tree, hf_mount_options,

       offset, &options);

  if (exportlist_item) {

    /* now we have a nicer string */

    proto_item_set_text(exportlist_item,

      "Export List Entry: %s %s", directory,

      options);

    /* now we know, that exportlist is shorter */

    proto_item_set_len(exportlist_item, offset - old_offset);

  }

  return offset;

}

static int

dissect_mount_exportlist_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)

{

  return dissect_rpc_list(tvb, pinfo, tree, 0,

    dissect_sgi_exportlist, NULL);

}

#define ST_RDONLY 0x00000001

#define ST_NOSUID 0x00000002

#define ST_NOTRUNC  0x00000004

#define ST_NODEV  0x20000000

#define ST_GRPID  0x40000000

#define ST_LOCAL  0x80000000

static const true_false_string tos_st_rdonly = {

  "Read-only file system",

  "Read/Write file system"

};

static const true_false_string tos_st_nosuid = {

  "Does not support setuid/setgid semantics",

  "Supports setuid/setgid semantics"

};

static const true_false_string tos_st_notrunc = {

  "Does not truncate filenames longer than NAME_MAX",

  "Truncates filenames longer than NAME_MAX"

};

static const true_false_string tos_st_nodev = {

  "Disallows opening of device files",

  "Allows opening of device files"

};

static const true_false_string tos_st_grpid = {

  "Group ID assigned from directory",

  "Group ID not assigned from directory"

};

static const true_false_string tos_st_local = {

  "File system is local",

  "File system is not local"

};

static int

dissect_mount_statvfs_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)

{

  static int * const flags[] = {

    &hf_mount_statvfs_flag_rdonly,

    &hf_mount_statvfs_flag_nosuid,

    &hf_mount_statvfs_flag_notrunc,

    &hf_mount_statvfs_flag_nodev,

    &hf_mount_statvfs_flag_grpid,

    &hf_mount_statvfs_flag_local,

    NULL

  };

  int offset = 0;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_bsize, offset);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_frsize, offset);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_blocks, offset);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_bfree, offset);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_bavail, offset);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_files, offset);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_ffree, offset);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_favail, offset);

  offset += 4;

  dissect_rpc_bytes(tvb, tree, hf_mount_statvfs_basetype, offset,

      16, true, NULL);

  offset += 16;

  dissect_rpc_bytes(tvb, tree, hf_mount_statvfs_fstr, offset, 32, false, NULL);

  offset += 32;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_fsid, offset);

  offset += 4;

  proto_tree_add_bitmask(tree, tvb, offset, hf_mount_statvfs_flag, ett_mount_statvfs_flag, flags, ENC_BIG_ENDIAN);

  offset += 4;

  dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_namemax, offset);

  offset += 4;

  return offset;

}

/* proc number, "proc name", dissect_request, dissect_reply */

/* Mount protocol version 1, RFC 1094 */

static const vsff mount1_proc[] = {

  { 0, "NULL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_MNT,        "MNT",

    dissect_mount_dirpath_call, dissect_mount1_mnt_reply },

  { MOUNTPROC_DUMP,       "DUMP",

    dissect_rpc_void, dissect_mount_dump_reply },

  { MOUNTPROC_UMNT,      "UMNT",

    dissect_mount_dirpath_call, dissect_rpc_void },

  { MOUNTPROC_UMNTALL,   "UMNTALL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_EXPORT,    "EXPORT",

    dissect_rpc_void, dissect_mount_export_reply },

  { MOUNTPROC_EXPORTALL, "EXPORTALL",

    dissect_rpc_void, dissect_mount_export_reply },

  { 0, NULL, NULL, NULL }

};

static const value_string mount1_proc_vals[] = {

  { 0, "NULL" },

  { MOUNTPROC_MNT,       "MNT" },

  { MOUNTPROC_DUMP,      "DUMP" },

  { MOUNTPROC_UMNT,      "UMNT" },

  { MOUNTPROC_UMNTALL,   "UMNTALL" },

  { MOUNTPROC_EXPORT,    "EXPORT" },

  { MOUNTPROC_EXPORTALL, "EXPORTALL" },

  { 0, NULL }

};

/* end of mount version 1 */

/* Mount protocol version 2, private communication from somebody at Sun;

   mount V2 is V1 plus MOUNTPROC_PATHCONF to fetch information for the

   POSIX "pathconf()" call. */

static const vsff mount2_proc[] = {

  { 0,                    "NULL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_MNT,        "MNT",

    dissect_mount_dirpath_call, dissect_mount1_mnt_reply },

  { MOUNTPROC_DUMP,       "DUMP",

    dissect_rpc_void, dissect_mount_dump_reply },

  { MOUNTPROC_UMNT,      "UMNT",

    dissect_mount_dirpath_call, dissect_rpc_void },

  { MOUNTPROC_UMNTALL,   "UMNTALL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_EXPORT,    "EXPORT",

    dissect_rpc_void, dissect_mount_export_reply },

  { MOUNTPROC_EXPORTALL, "EXPORTALL",

    dissect_rpc_void, dissect_mount_export_reply },

  { MOUNTPROC_PATHCONF,  "PATHCONF",

    dissect_mount_dirpath_call, dissect_mount_pathconf_reply },

  { 0, NULL, NULL, NULL }

};

static const value_string mount2_proc_vals[] = {

  { 0, "NULL" },

  { MOUNTPROC_MNT,       "MNT" },

  { MOUNTPROC_DUMP,      "DUMP" },

  { MOUNTPROC_UMNT,      "UMNT" },

  { MOUNTPROC_UMNTALL,   "UMNTALL" },

  { MOUNTPROC_EXPORT,    "EXPORT" },

  { MOUNTPROC_EXPORTALL, "EXPORTALL" },

  { MOUNTPROC_PATHCONF,  "PATHCONF" },

  { 0, NULL }

};

/* end of mount version 2 */

/* Mount protocol version 3, RFC 1813 */

static const vsff mount3_proc[] = {

  { 0, "NULL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_MNT, "MNT",

    dissect_mount_dirpath_call, dissect_mount3_mnt_reply },

  { MOUNTPROC_DUMP, "DUMP",

    dissect_rpc_void, dissect_mount_dump_reply },

  { MOUNTPROC_UMNT, "UMNT",

    dissect_mount_dirpath_call, dissect_rpc_void },

  { MOUNTPROC_UMNTALL, "UMNTALL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_EXPORT, "EXPORT",

    dissect_rpc_void, dissect_mount_export_reply },

  { 0, NULL, NULL, NULL }

};

static const value_string mount3_proc_vals[] = {

  { 0, "NULL" },

  { MOUNTPROC_MNT, "MNT" },

  { MOUNTPROC_DUMP, "DUMP" },

  { MOUNTPROC_UMNT, "UMNT" },

  { MOUNTPROC_UMNTALL, "UMNTALL" },

  { MOUNTPROC_EXPORT, "EXPORT" },

  { 0, NULL }

};

/* end of Mount protocol version 3 */

static const rpc_prog_vers_info mount_vers_info[] = {

  { 1, mount1_proc, &hf_mount_procedure_v1 },

  { 2, mount2_proc, &hf_mount_procedure_v2 },

  { 3, mount3_proc, &hf_mount_procedure_v3 },

};

/* SGI mount protocol version 1; actually the same as v1 plus

   MOUNTPROC_EXPORTLIST and MOUNTPROC_STATVFS */

static const vsff sgi_mount1_proc[] = {

  { 0, "NULL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_MNT,        "MNT",

    dissect_mount_dirpath_call, dissect_mount1_mnt_reply },

  { MOUNTPROC_DUMP,       "DUMP",

    dissect_rpc_void, dissect_mount_dump_reply },

  { MOUNTPROC_UMNT,      "UMNT",

    dissect_mount_dirpath_call, dissect_rpc_void },

  { MOUNTPROC_UMNTALL,   "UMNTALL",

    dissect_rpc_void, dissect_rpc_void },

  { MOUNTPROC_EXPORT,    "EXPORT",

    dissect_rpc_void, dissect_mount_export_reply },

  { MOUNTPROC_EXPORTALL, "EXPORTALL",

    dissect_rpc_void, dissect_mount_export_reply },

  { MOUNTPROC_EXPORTLIST,"EXPORTLIST",

    dissect_rpc_void, dissect_mount_exportlist_reply },

  { MOUNTPROC_STATVFS,   "STATVFS",

    dissect_mount_dirpath_call, dissect_mount_statvfs_reply },

  { 0, NULL, NULL, NULL }

};

static const value_string sgi_mount1_proc_vals[] = {

  { 0, "NULL" },

  { MOUNTPROC_MNT,        "MNT" },

  { MOUNTPROC_DUMP,       "DUMP" },

  { MOUNTPROC_UMNT,       "UMNT" },

  { MOUNTPROC_UMNTALL,    "UMNTALL" },

  { MOUNTPROC_EXPORT,     "EXPORT" },

  { MOUNTPROC_EXPORTALL,  "EXPORTALL" },

  { MOUNTPROC_EXPORTLIST, "EXPORTLIST" },

  { MOUNTPROC_STATVFS,    "STATVFS" },

  { 0, NULL }

};

/* end of SGI mount protocol version 1 */

static const rpc_prog_vers_info sgi_mount_vers_info[] = {

  { 1, sgi_mount1_proc, &hf_sgi_mount_procedure_v1 },

};

void

proto_register_mount(void)

{

  static hf_register_info hf[] = {

    { &hf_mount_procedure_v1, {

      "V1 Procedure", "mount.procedure_v1", FT_UINT32, BASE_DEC,

      VALS(mount1_proc_vals), 0, NULL, HFILL }},

    { &hf_mount_procedure_v2, {

      "V2 Procedure", "mount.procedure_v2", FT_UINT32, BASE_DEC,

      VALS(mount2_proc_vals), 0, NULL, HFILL }},

    { &hf_mount_procedure_v3, {

      "V3 Procedure", "mount.procedure_v3", FT_UINT32, BASE_DEC,

      VALS(mount3_proc_vals), 0, NULL, HFILL }},

    { &hf_sgi_mount_procedure_v1, {

      "SGI V1 procedure", "mount.procedure_sgi_v1", FT_UINT32, BASE_DEC,

      VALS(sgi_mount1_proc_vals), 0, NULL, HFILL }},

    { &hf_mount_path, {

      "Path", "mount.path", FT_STRING, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount3_status, {

      "Status", "mount.status", FT_UINT32, BASE_DEC,

      VALS(mount3_mountstat3), 0, NULL, HFILL }},

    { &hf_mount_mountlist_hostname, {

      "Hostname", "mount.dump.hostname", FT_STRING, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_mountlist_directory, {

      "Directory", "mount.dump.directory", FT_STRING, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_mountlist, {

      "Mount List Entry", "mount.dump.entry", FT_NONE, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_groups_group, {

      "Group", "mount.export.group", FT_STRING, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_groups, {

      "Groups", "mount.export.groups", FT_NONE, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_has_options, {

      "Has options", "mount.export.has_options", FT_UINT32,

       BASE_DEC, NULL, 0, NULL, HFILL }},

    { &hf_mount_options, {

      "Options", "mount.export.options", FT_STRING, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_exportlist_directory, {

      "Directory", "mount.export.directory", FT_STRING, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_exportlist, {

      "Export List Entry", "mount.export.entry", FT_NONE, BASE_NONE,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_pathconf_link_max, {

      "Maximum number of links to a file", "mount.pathconf.link_max",

      FT_UINT32, BASE_DEC,

      NULL, 0, "Maximum number of links allowed to a file", HFILL }},

    { &hf_mount_pathconf_max_canon, {

      "Maximum terminal input line length", "mount.pathconf.max_canon",

      FT_UINT16, BASE_DEC,

      NULL, 0, "Max tty input line length", HFILL }},

    { &hf_mount_pathconf_max_input, {

      "Terminal input buffer size", "mount.pathconf.max_input",

      FT_UINT16, BASE_DEC,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_pathconf_name_max, {

      "Maximum file name length", "mount.pathconf.name_max",

      FT_UINT16, BASE_DEC,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_pathconf_path_max, {

      "Maximum path name length", "mount.pathconf.path_max",

      FT_UINT16, BASE_DEC,

      NULL, 0, NULL, HFILL }},

    { &hf_mount_pathconf_pipe_buf, {

      "Pipe buffer size", "mount.pathconf.pipe_buf",

      FT_UINT16, BASE_DEC,

      NULL, 0, "Maximum amount of data that can be written atomically to a pipe", HFILL }},

    { &hf_mount_pathconf_vdisable, {

      "VDISABLE character", "mount.pathconf.vdisable_char",

      FT_UINT8, BASE_HEX,

      NULL, 0, "Character value to disable a terminal special character", HFILL }},

    { &hf_mount_pathconf_mask, {

      "Reply error/status bits", "mount.pathconf.mask",

      FT_UINT16, BASE_HEX,

      NULL, 0, "Bit mask with error and status bits", HFILL }},

    { &hf_mount_pathconf_error_all, {

      "ERROR_ALL",  "mount.pathconf.mask.error_all",

      FT_BOOLEAN, 16, TFS(&tos_error_all),

      PC_ERROR_ALL, NULL, HFILL }},

    { &hf_mount_pathconf_error_link_max, {

      "ERROR_LINK_MAX", "mount.pathconf.mask.error_link_max",

      FT_BOOLEAN, 16, TFS(&tos_error_link_max),

      PC_ERROR_LINK_MAX, NULL, HFILL }},

    { &hf_mount_pathconf_error_max_canon, {

      "ERROR_MAX_CANON", "mount.pathconf.mask.error_max_canon",

      FT_BOOLEAN, 16, TFS(&tos_error_max_canon),

      PC_ERROR_MAX_CANON, NULL, HFILL }},

    { &hf_mount_pathconf_error_max_input, {

      "ERROR_MAX_INPUT", "mount.pathconf.mask.error_max_input",

      FT_BOOLEAN, 16, TFS(&tos_error_max_input),

      PC_ERROR_MAX_INPUT, NULL, HFILL }},

    { &hf_mount_pathconf_error_name_max, {

      "ERROR_NAME_MAX", "mount.pathconf.mask.error_name_max",

      FT_BOOLEAN, 16, TFS(&tos_error_name_max),

      PC_ERROR_NAME_MAX, NULL, HFILL }},

    { &hf_mount_pathconf_error_path_max, {

      "ERROR_PATH_MAX", "mount.pathconf.mask.error_path_max",

      FT_BOOLEAN, 16, TFS(&tos_error_path_max),

      PC_ERROR_PATH_MAX, NULL, HFILL }},

    { &hf_mount_pathconf_error_pipe_buf, {

      "ERROR_PIPE_BUF", "mount.pathconf.mask.error_pipe_buf",

      FT_BOOLEAN, 16, TFS(&tos_error_pipe_buf),

      PC_ERROR_PIPE_BUF, NULL, HFILL }},

    { &hf_mount_pathconf_chown_restricted, {

      "CHOWN_RESTRICTED", "mount.pathconf.mask.chown_restricted",

      FT_BOOLEAN, 16, TFS(&tos_chown_restricted),

      PC_CHOWN_RESTRICTED, NULL, HFILL }},

    { &hf_mount_pathconf_no_trunc, {

      "NO_TRUNC", "mount.pathconf.mask.no_trunc",

      FT_BOOLEAN, 16, TFS(&tos_no_trunc),

      PC_NO_TRUNC, NULL, HFILL }},

    { &hf_mount_pathconf_error_vdisable, {

      "ERROR_VDISABLE", "mount.pathconf.mask.error_vdisable",

      FT_BOOLEAN, 16, TFS(&tos_error_vdisable),

      PC_ERROR_VDISABLE, NULL, HFILL }},

    { &hf_mount_statvfs_bsize, {

      "Block size", "mount.statvfs.f_bsize",

      FT_UINT32, BASE_DEC, NULL, 0,

      "File system block size", HFILL }},

    { &hf_mount_statvfs_frsize, {

      "Fragment size", "mount.statvfs.f_frsize",

      FT_UINT32, BASE_DEC, NULL, 0,

      "File system fragment size", HFILL }},

    { &hf_mount_statvfs_blocks, {

      "Blocks", "mount.statvfs.f_blocks",

      FT_UINT32, BASE_DEC, NULL, 0,

      "Total fragment sized blocks", HFILL }},

    { &hf_mount_statvfs_bfree, {

      "Blocks Free", "mount.statvfs.f_bfree",

      FT_UINT32, BASE_DEC, NULL, 0,

      "Free fragment sized blocks", HFILL }},

    { &hf_mount_statvfs_bavail, {

      "Blocks Available", "mount.statvfs.f_bavail",

      FT_UINT32, BASE_DEC, NULL, 0,

      "Available fragment sized blocks", HFILL }},

    { &hf_mount_statvfs_files, {

      "Files", "mount.statvfs.f_files",

      FT_UINT32, BASE_DEC, NULL, 0,

      "Total files/inodes", HFILL }},

    { &hf_mount_statvfs_ffree, {

      "Files Free", "mount.statvfs.f_ffree",

      FT_UINT32, BASE_DEC, NULL, 0,

      "Free files/inodes", HFILL }},

    { &hf_mount_statvfs_favail, {

      "Files Available", "mount.statvfs.f_favail",

      FT_UINT32, BASE_DEC, NULL, 0,

      "Available files/inodes",  HFILL }},

    { &hf_mount_statvfs_fsid, {

      "File system ID", "mount.statvfs.f_fsid",

      FT_UINT32, BASE_DEC, NULL, 0,

      "File system identifier", HFILL }},

    { &hf_mount_statvfs_basetype, {

      "Type", "mount.statvfs.f_basetype",

      FT_STRING, BASE_NONE, NULL, 0,

      "File system type", HFILL }},

    { &hf_mount_statvfs_flag, {

      "Flags", "mount.statvfs.f_flag",

      FT_UINT32, BASE_HEX, NULL, 0,

      "Flags bit-mask", HFILL }},

    { &hf_mount_statvfs_flag_rdonly, {

      "ST_RDONLY", "mount.statvfs.f_flag.st_rdonly",

      FT_BOOLEAN, 32, TFS(&tos_st_rdonly), ST_RDONLY,

      NULL, HFILL }},

    { &hf_mount_statvfs_flag_nosuid, {

      "ST_NOSUID", "mount.statvfs.f_flag.st_nosuid",

      FT_BOOLEAN, 32, TFS(&tos_st_nosuid), ST_NOSUID,

      NULL, HFILL }},

    { &hf_mount_statvfs_flag_notrunc, {

      "ST_NOTRUNC", "mount.statvfs.f_flag.st_notrunc",

      FT_BOOLEAN, 32, TFS(&tos_st_notrunc), ST_NOTRUNC,

      NULL, HFILL }},

    { &hf_mount_statvfs_flag_nodev, {

      "ST_NODEV", "mount.statvfs.f_flag.st_nodev",

       FT_BOOLEAN, 32, TFS(&tos_st_nodev), ST_NODEV,

      NULL, HFILL }},

    { &hf_mount_statvfs_flag_grpid, {

      "ST_GRPID", "mount.statvfs.f_flag.st_grpid",

      FT_BOOLEAN, 32, TFS(&tos_st_grpid), ST_GRPID,

      NULL, HFILL }},

    { &hf_mount_statvfs_flag_local, {

      "ST_LOCAL", "mount.statvfs.f_flag.st_local",

      FT_BOOLEAN, 32, TFS(&tos_st_local), ST_LOCAL,

      NULL, HFILL }},

    { &hf_mount_statvfs_namemax, {

      "Maximum file name length", "mount.statvfs.f_namemax",

      FT_UINT32, BASE_DEC, NULL, 0,

      NULL, HFILL }},

    { &hf_mount_statvfs_fstr, {

      "File system specific string", "mount.statvfs.f_fstr",

      FT_BYTES, BASE_NONE, NULL, 0,

      NULL, HFILL }},

    { &hf_mount_flavors, {

      "Flavors", "mount.flavors", FT_UINT32, BASE_DEC,