1 | /** @file
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2 | * vboxsf -- VirtualBox Guest Additions for Linux: mount(2) parameter structure.
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3 | */
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4 |
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5 | /*
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6 | * Copyright (C) 2006-2010 Oracle Corporation
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7 | *
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8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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9 | * available from http://www.virtualbox.org. This file is free software;
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10 | * you can redistribute it and/or modify it under the terms of the GNU
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11 | * General Public License (GPL) as published by the Free Software
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12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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15 | */
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16 |
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17 | #ifndef VBFS_MOUNT_H
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18 | #define VBFS_MOUNT_H
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19 |
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20 | #define MAX_HOST_NAME 256
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21 | #define MAX_NLS_NAME 32
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22 |
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23 | /* Linux constraints the size of data mount argument to PAGE_SIZE - 1. */
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24 | struct vbsf_mount_info_old
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25 | {
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26 | char name[MAX_HOST_NAME];
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27 | char nls_name[MAX_NLS_NAME];
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28 | int uid;
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29 | int gid;
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30 | int ttl;
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31 | };
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32 |
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33 | #define VBSF_MOUNT_SIGNATURE_BYTE_0 '\377'
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34 | #define VBSF_MOUNT_SIGNATURE_BYTE_1 '\376'
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35 | #define VBSF_MOUNT_SIGNATURE_BYTE_2 '\375'
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36 |
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37 | struct vbsf_mount_info_new
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38 | {
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39 | char nullchar; /* name cannot be '\0' -- we use this field
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40 | to distinguish between the old structure
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41 | and the new structure */
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42 | char signature[3]; /* signature */
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43 | int length; /* length of the whole structure */
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44 | char name[MAX_HOST_NAME]; /* share name */
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45 | char nls_name[MAX_NLS_NAME];/* name of an I/O charset */
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46 | int uid; /* user ID for all entries, default 0=root */
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47 | int gid; /* group ID for all entries, default 0=root */
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48 | int ttl; /* time to live */
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49 | int dmode; /* mode for directories if != 0xffffffff */
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50 | int fmode; /* mode for regular files if != 0xffffffff */
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51 | int dmask; /* umask applied to directories */
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52 | int fmask; /* umask applied to regular files */
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53 | };
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54 |
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55 | struct vbsf_mount_opts
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56 | {
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57 | int uid;
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58 | int gid;
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59 | int ttl;
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60 | int dmode;
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61 | int fmode;
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62 | int dmask;
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63 | int fmask;
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64 | int ronly;
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65 | int noexec;
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66 | int nodev;
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67 | int nosuid;
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68 | int remount;
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69 | char nls_name[MAX_NLS_NAME];
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70 | char *convertcp;
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71 | };
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72 |
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73 | /** Completes the mount operation by adding the new mount point to mtab if required. */
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74 | int vbsfmount_complete(const char *host_name, const char *mount_point,
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75 | unsigned long flags, struct vbsf_mount_opts *opts);
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76 |
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77 | #endif /* vbsfmount.h */
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