trunk/rdesktop/disk.c

/* -*- c-basic-offset: 8 -*-
   rdesktop: A Remote Desktop Protocol client.
   Disk Redirection
   Copyright (C) Jeroen Meijer 2003

   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 2 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#define FILE_ATTRIBUTE_READONLY                 0x00000001
#define FILE_ATTRIBUTE_HIDDEN                   0x00000002
#define FILE_ATTRIBUTE_SYSTEM                   0x00000004
#define FILE_ATTRIBUTE_DIRECTORY                0x00000010
#define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
#define FILE_ATTRIBUTE_DEVICE                   0x00000040
#define FILE_ATTRIBUTE_NORMAL                   0x00000080
#define FILE_ATTRIBUTE_TEMPORARY                0x00000100
#define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
#define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
#define FILE_ATTRIBUTE_COMPRESSED               0x00000800
#define FILE_ATTRIBUTE_OFFLINE                  0x00001000
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
#define FILE_ATTRIBUTE_ENCRYPTED                0x00004000

#define FILE_BASIC_INFORMATION                  0x04
#define FILE_STANDARD_INFORMATION               0x05

#define FS_CASE_SENSITIVE                       0x00000001
#define FS_CASE_IS_PRESERVED                    0x00000002
#define FS_UNICODE_STORED_ON_DISK               0x00000004
#define FS_PERSISTENT_ACLS                      0x00000008
#define FS_FILE_COMPRESSION                     0x00000010
#define FS_VOLUME_QUOTAS                        0x00000020
#define FS_SUPPORTS_SPARSE_FILES                0x00000040
#define FS_SUPPORTS_REPARSE_POINTS              0x00000080
#define FS_SUPPORTS_REMOTE_STORAGE              0X00000100
#define FS_VOL_IS_COMPRESSED                    0x00008000
#define FILE_READ_ONLY_VOLUME                   0x00080000

#define OPEN_EXISTING                           1
#define CREATE_NEW                              2
#define OPEN_ALWAYS                             3
#define TRUNCATE_EXISTING                       4
#define CREATE_ALWAYS                           5

#define GENERIC_READ                            0x80000000
#define GENERIC_WRITE                           0x40000000
#define GENERIC_EXECUTE                         0x20000000
#define GENERIC_ALL                             0x10000000

#define ERROR_FILE_NOT_FOUND                    2L
#define ERROR_ALREADY_EXISTS                    183L

#define MAX_OPEN_FILES  0x100

#if (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
#define SOLARIS
#endif

#ifdef SOLARIS
#define DIRFD(a) ((a)->dd_fd)
#else
#define DIRFD(a) (dirfd(a))
#endif

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>              /* open, close */
#include <dirent.h>             /* opendir, closedir, readdir */
#include <fnmatch.h>
#include <errno.h>              /* errno */

#if defined(SOLARIS)
#include <sys/statvfs.h>        /* solaris statvfs */
#define STATFS_FN(path, buf) (statvfs(path,buf))
#define STATFS_T statvfs
#define F_NAMELEN(buf) ((buf).f_namemax)

#elif (defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__))
#include <sys/param.h>
#include <sys/mount.h>
#define STATFS_FN(path, buf) (statfs(path,buf))
#define STATFS_T statfs
#define F_NAMELEN(buf) (NAME_MAX)

#else
#include <sys/vfs.h>            /* linux statfs */
#define STATFS_FN(path, buf) (statfs(path,buf))
#define STATFS_T statfs
#define F_NAMELEN(buf) ((buf).f_namelen)
#endif

#include "rdesktop.h"

extern RDPDR_DEVICE g_rdpdr_device[];

struct fileinfo
{
        uint32 device_id, flags_and_attributes;
        char path[256];
        DIR *pdir;
        struct dirent *pdirent;
        char pattern[64];
        BOOL delete_on_close;
}
g_fileinfo[MAX_OPEN_FILES];

/* Convert seconds since 1970 to a filetime */
void
seconds_since_1970_to_filetime(time_t seconds, uint32 * high, uint32 * low)
{
        unsigned long long ticks;

        ticks = (seconds + 11644473600LL) * 10000000;
        *low = (uint32) ticks;
        *high = (uint32) (ticks >> 32);
}

/* Enumeration of devices from rdesktop.c        */
/* returns numer of units found and initialized. */
/* optarg looks like ':h:=/mnt/floppy,b:=/mnt/usbdevice1' */
/* when it arrives to this function.             */
int
disk_enum_devices(int *id, char *optarg)
{
        char *pos = optarg;
        char *pos2;
        int count = 0;

        // skip the first colon
        optarg++;
        while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
        {
                pos2 = next_arg(optarg, '=');
                strcpy(g_rdpdr_device[*id].name, optarg);

                toupper_str(g_rdpdr_device[*id].name);

                /* add trailing colon to name. */
                strcat(g_rdpdr_device[*id].name, ":");

                g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
                strcpy(g_rdpdr_device[*id].local_path, pos2);
                printf("DISK %s to %s\n", g_rdpdr_device[*id].name, g_rdpdr_device[*id].local_path);
                g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK;
                count++;
                (*id)++;

                optarg = pos;
        }
        return count;
}

/* Opens of creates a file or directory */
NTSTATUS
disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition,
            uint32 flags_and_attributes, char *filename, HANDLE * phandle)
{
        HANDLE handle;
        DIR *dirp;
        int flags, mode;
        char path[256];

        handle = 0;
        dirp = NULL;
        flags = 0;
        mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;

        if (filename[strlen(filename) - 1] == '/')
                filename[strlen(filename) - 1] = 0;
        sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename);
        //printf("Open: %s\n", path);

        switch (create_disposition)
        {
                case CREATE_ALWAYS:

                        // Delete existing file/link.
                        unlink(path);
                        flags |= O_CREAT;
                        break;

                case CREATE_NEW:

                        // If the file already exists, then fail.
                        flags |= O_CREAT | O_EXCL;
                        break;

                case OPEN_ALWAYS:

                        // Create if not already exists.
                        flags |= O_CREAT;
                        break;

                case OPEN_EXISTING:

                        // Default behaviour
                        break;

                case TRUNCATE_EXISTING:

                        // If the file does not exist, then fail.
                        flags |= O_TRUNC;
                        break;
        }

        if (flags_and_attributes & FILE_DIRECTORY_FILE)
        {
                if (flags & O_CREAT)
                {
                        mkdir(path, mode);
                }

                dirp = opendir(path);
                if (!dirp)
                {
                        switch (errno)
                        {
                                case EACCES:

                                        return STATUS_ACCESS_DENIED;

                                case ENOENT:

                                        return STATUS_NO_SUCH_FILE;

                                default:

                                        perror("opendir");
                                        return STATUS_NO_SUCH_FILE;
                        }
                }
                handle = DIRFD(dirp);
        }
        else
        {
                if (accessmask & GENERIC_ALL
                    || (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE))
                {
                        flags |= O_RDWR;
                }
                else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ))
                {
                        flags |= O_WRONLY;
                }
                else
                {
                        flags |= O_RDONLY;
                }

                handle = open(path, flags, mode);
                if (handle == -1)
                {
                        switch (errno)
                        {
                                case EACCES:

                                        return STATUS_ACCESS_DENIED;

                                case ENOENT:

                                        return STATUS_NO_SUCH_FILE;

                                default:

                                        perror("open");
                                        return STATUS_NO_SUCH_FILE;
                        }
                }
        }

        if (handle >= MAX_OPEN_FILES)
        {
                error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n",
                      handle);
                exit(1);
        }

        if (dirp)
                g_fileinfo[handle].pdir = dirp;
        g_fileinfo[handle].device_id = device_id;
        g_fileinfo[handle].flags_and_attributes = flags_and_attributes;
        strncpy(g_fileinfo[handle].path, path, 255);

        *phandle = handle;
        return STATUS_SUCCESS;
}

NTSTATUS
disk_close(HANDLE handle)
{
        struct fileinfo *pfinfo;

        pfinfo = &(g_fileinfo[handle]);

        if (pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE)
        {
                closedir(pfinfo->pdir);
                //FIXME: Should check exit code
        }
        else
        {
                close(handle);
        }

        return STATUS_SUCCESS;
}

NTSTATUS
disk_read(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
{
        int n;

        if (offset)
                lseek(handle, offset, SEEK_SET);
        n = read(handle, data, length);

        if (n < 0)
        {
                perror("read");
                *result = 0;
                return STATUS_INVALID_PARAMETER;
        }

        *result = n;

        return STATUS_SUCCESS;
}

NTSTATUS
disk_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
{
        int n;

        if (offset)
                lseek(handle, offset, SEEK_SET);

        n = write(handle, data, length);

        if (n < 0)
        {
                perror("write");
                *result = 0;
                return STATUS_ACCESS_DENIED;
        }

        *result = n;

        return STATUS_SUCCESS;
}

NTSTATUS
disk_query_information(HANDLE handle, uint32 info_class, STREAM out)
{
        uint32 file_attributes, ft_high, ft_low;
        struct stat filestat;
        char *path, *filename;

        path = g_fileinfo[handle].path;

        // Get information about file
        if (fstat(handle, &filestat) != 0)
        {
                perror("stat");
                out_uint8(out, 0);
                return STATUS_ACCESS_DENIED;
        }

        // Set file attributes
        file_attributes = 0;
        if (S_ISDIR(filestat.st_mode))
        {
                file_attributes |= FILE_ATTRIBUTE_DIRECTORY;
        }
        filename = 1 + strrchr(path, '/');
        if (filename && filename[0] == '.')
        {
                file_attributes |= FILE_ATTRIBUTE_HIDDEN;
        }

        // Return requested data
        switch (info_class)
        {
                case 4: /* FileBasicInformation */

                        out_uint8s(out, 8);     //create_time not available;

                        seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low);
                        out_uint32_le(out, ft_low);     //last_access_time
                        out_uint32_le(out, ft_high);

                        seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low);
                        out_uint32_le(out, ft_low);     //last_write_time
                        out_uint32_le(out, ft_high);

                        out_uint8s(out, 8);     //unknown zero
                        out_uint32_le(out, file_attributes);
                        break;

                case 5: /* FileStandardInformation */

                        out_uint32_le(out, filestat.st_size);   //Allocation size
                        out_uint32_le(out, 0);
                        out_uint32_le(out, filestat.st_size);   //End of file
                        out_uint32_le(out, 0);
                        out_uint32_le(out, filestat.st_nlink);  //Number of links
                        out_uint8(out, 0);      //Delete pending
                        out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0);      //Directory
                        break;

                case 35:        /* FileObjectIdInformation */

                        out_uint32_le(out, file_attributes);    /* File Attributes */
                        out_uint32_le(out, 0);  /* Reparse Tag */
                        break;

                default:

                        unimpl("IRP Query (File) Information class: 0x%x\n", info_class);
                        return STATUS_INVALID_PARAMETER;
        }
        return STATUS_SUCCESS;
}

NTSTATUS
disk_set_information(HANDLE handle, uint32 info_class, STREAM in, STREAM out)
{
        uint32 device_id, length, file_attributes, ft_high, ft_low;
        char newname[256], fullpath[256];
        struct fileinfo *pfinfo;

        pfinfo = &(g_fileinfo[handle]);

        switch (info_class)
        {
                case 4: /* FileBasicInformation */

                        // Probably safe to ignore
                        break;

                case 10:        /* FileRenameInformation */

                        in_uint8s(in, 4);       /* Handle of root dir? */
                        in_uint8s(in, 0x1a);    /* unknown */
                        in_uint32_le(in, length);

                        if (length && (length / 2) < 256)
                        {
                                rdp_in_unistr(in, newname, length);
                                convert_to_unix_filename(newname);
                        }
                        else
                        {
                                return STATUS_INVALID_PARAMETER;
                        }

                        sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path,
                                newname);

                        if (rename(pfinfo->path, fullpath) != 0)
                        {
                                perror("rename");
                                return STATUS_ACCESS_DENIED;
                        }
                        break;

                case 13:        /* FileDispositionInformation */

                        //unimpl("IRP Set File Information class: FileDispositionInformation\n");
                        // in_uint32_le(in, delete_on_close);
                        // disk_close(handle);
                        unlink(pfinfo->path);
                        break;

                case 19:        /* FileAllocationInformation */

                        unimpl("IRP Set File Information class: FileAllocationInformation\n");
                        break;

                case 20:        /* FileEndOfFileInformation */

                        unimpl("IRP Set File Information class: FileEndOfFileInformation\n");
                        break;

                default:

                        unimpl("IRP Set File Information class: 0x%x\n", info_class);
                        return STATUS_INVALID_PARAMETER;
        }
        return STATUS_SUCCESS;
}

NTSTATUS
disk_query_volume_information(HANDLE handle, uint32 info_class, STREAM out)
{
        char *volume, *fs_type;
        struct STATFS_T stat_fs;
        struct fileinfo *pfinfo;

        pfinfo = &(g_fileinfo[handle]);
        volume = "RDESKTOP";
        fs_type = "RDPFS";

        if (STATFS_FN(pfinfo->path, &stat_fs) != 0)     /* FIXME: statfs is not portable */
        {
                perror("statfs");
                return STATUS_ACCESS_DENIED;
        }

        switch (info_class)
        {
                case 1: /* FileFsVolumeInformation */

                        out_uint32_le(out, 0);  /* volume creation time low */
                        out_uint32_le(out, 0);  /* volume creation time high */
                        out_uint32_le(out, 0);  /* serial */
                        out_uint32_le(out, 2 * strlen(volume)); /* length of string */
                        out_uint8(out, 0);      /* support objects? */
                        rdp_out_unistr(out, volume, 2 * strlen(volume) - 2);
                        break;

                case 3: /* FileFsSizeInformation */

                        out_uint32_le(out, stat_fs.f_blocks);   /* Total allocation units low */
                        out_uint32_le(out, 0);  /* Total allocation high units */
                        out_uint32_le(out, stat_fs.f_bfree);    /* Available allocation units */
                        out_uint32_le(out, 0);  /* Available allowcation units */
                        out_uint32_le(out, stat_fs.f_bsize / 0x200);    /* Sectors per allocation unit */
                        out_uint32_le(out, 0x200);      /* Bytes per sector */
                        break;

                case 5: /* FileFsAttributeInformation */

                        out_uint32_le(out, FS_CASE_SENSITIVE | FS_CASE_IS_PRESERVED);   /* fs attributes */
                        out_uint32_le(out, F_NAMELEN(stat_fs)); /* max length of filename */
                        out_uint32_le(out, 2 * strlen(fs_type));        /* length of fs_type */
                        rdp_out_unistr(out, fs_type, 2 * strlen(fs_type) - 2);
                        break;

                case 2: /* FileFsLabelInformation */
                case 4: /* FileFsDeviceInformation */
                case 6: /* FileFsControlInformation */
                case 7: /* FileFsFullSizeInformation */
                case 8: /* FileFsObjectIdInformation */
                case 9: /* FileFsMaximumInformation */
                default:

                        unimpl("IRP Query Volume Information class: 0x%x\n", info_class);
                        return STATUS_INVALID_PARAMETER;
        }
        return STATUS_SUCCESS;
}

NTSTATUS
disk_query_directory(HANDLE handle, uint32 info_class, char *pattern, STREAM out)
{
        uint32 file_attributes, ft_low, ft_high;
        char *dirname, fullpath[256];
        DIR *pdir;
        struct dirent *pdirent;
        struct stat fstat;
        struct fileinfo *pfinfo;

        pfinfo = &(g_fileinfo[handle]);
        pdir = pfinfo->pdir;
        dirname = pfinfo->path;
        file_attributes = 0;

        switch (info_class)
        {
                case 3: //FIXME: Why 3?

                        // If a search pattern is received, remember this pattern, and restart search
                        if (pattern[0] != 0)
                        {
                                strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64);
                                rewinddir(pdir);
                        }

                        // find next dirent matching pattern
                        pdirent = readdir(pdir);
                        while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0)
                        {
                                pdirent = readdir(pdir);
                        }

                        if (pdirent == NULL)
                        {
                                return STATUS_NO_MORE_FILES;
                        }

                        // Get information for directory entry
                        sprintf(fullpath, "%s/%s", dirname, pdirent->d_name);
                        /* JIF 
                           printf("Stat: %s\n", fullpath); */
                        if (stat(fullpath, &fstat))
                        {
                                perror("stat");
                                out_uint8(out, 0);
                                return STATUS_ACCESS_DENIED;
                        }

                        if (S_ISDIR(fstat.st_mode))
                                file_attributes |= FILE_ATTRIBUTE_DIRECTORY;
                        if (pdirent->d_name[0] == '.')
                                file_attributes |= FILE_ATTRIBUTE_HIDDEN;

                        // Return requested information
                        out_uint8s(out, 8);     //unknown zero
                        out_uint8s(out, 8);     //create_time not available in posix;

                        seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low);
                        out_uint32_le(out, ft_low);     //last_access_time
                        out_uint32_le(out, ft_high);

                        seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low);
                        out_uint32_le(out, ft_low);     //last_write_time
                        out_uint32_le(out, ft_high);

                        out_uint8s(out, 8);     //unknown zero
                        out_uint32_le(out, fstat.st_size);      //filesize low
                        out_uint32_le(out, 0);  //filesize high
                        out_uint32_le(out, fstat.st_size);      //filesize low
                        out_uint32_le(out, 0);  //filesize high
                        out_uint32_le(out, file_attributes);
                        out_uint8(out, 2 * strlen(pdirent->d_name) + 2);        //unicode length
                        out_uint8s(out, 7);     //pad?
                        out_uint8(out, 0);      //8.3 file length
                        out_uint8s(out, 2 * 12);        //8.3 unicode length
                        rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name));
                        break;

                default:

                        unimpl("IRP Query Directory sub: 0x%x\n", info_class);
                        return STATUS_INVALID_PARAMETER;
        }

        return STATUS_SUCCESS;
}

DEVICE_FNS disk_fns = {
        disk_create,
        disk_close,
        disk_read,
        disk_write,
        NULL                    /* device_control */
};
1	n-ki	569	/* -- c-basic-offset: 8 --
2			rdesktop: A Remote Desktop Protocol client.
3			Disk Redirection
4			Copyright (C) Jeroen Meijer 2003
5
6			This program is free software; you can redistribute it and/or modify
7			it under the terms of the GNU General Public License as published by
8			the Free Software Foundation; either version 2 of the License, or
9			(at your option) any later version.
10
11			This program is distributed in the hope that it will be useful,
12			but WITHOUT ANY WARRANTY; without even the implied warranty of
13			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			GNU General Public License for more details.
15
16			You should have received a copy of the GNU General Public License
17			along with this program; if not, write to the Free Software
18			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19			*/
20
21			#define FILE_ATTRIBUTE_READONLY 0x00000001
22			#define FILE_ATTRIBUTE_HIDDEN 0x00000002
23			#define FILE_ATTRIBUTE_SYSTEM 0x00000004
24			#define FILE_ATTRIBUTE_DIRECTORY 0x00000010
25			#define FILE_ATTRIBUTE_ARCHIVE 0x00000020
26			#define FILE_ATTRIBUTE_DEVICE 0x00000040
27			#define FILE_ATTRIBUTE_NORMAL 0x00000080
28			#define FILE_ATTRIBUTE_TEMPORARY 0x00000100
29			#define FILE_ATTRIBUTE_SPARSE_FILE 0x00000200
30			#define FILE_ATTRIBUTE_REPARSE_POINT 0x00000400
31			#define FILE_ATTRIBUTE_COMPRESSED 0x00000800
32			#define FILE_ATTRIBUTE_OFFLINE 0x00001000
33			#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000
34			#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000
35
36			#define FILE_BASIC_INFORMATION 0x04
37			#define FILE_STANDARD_INFORMATION 0x05
38
39			#define FS_CASE_SENSITIVE 0x00000001
40			#define FS_CASE_IS_PRESERVED 0x00000002
41			#define FS_UNICODE_STORED_ON_DISK 0x00000004
42			#define FS_PERSISTENT_ACLS 0x00000008
43			#define FS_FILE_COMPRESSION 0x00000010
44			#define FS_VOLUME_QUOTAS 0x00000020
45			#define FS_SUPPORTS_SPARSE_FILES 0x00000040
46			#define FS_SUPPORTS_REPARSE_POINTS 0x00000080
47			#define FS_SUPPORTS_REMOTE_STORAGE 0X00000100
48			#define FS_VOL_IS_COMPRESSED 0x00008000
49			#define FILE_READ_ONLY_VOLUME 0x00080000
50
51			#define OPEN_EXISTING 1
52			#define CREATE_NEW 2
53			#define OPEN_ALWAYS 3
54			#define TRUNCATE_EXISTING 4
55			#define CREATE_ALWAYS 5
56
57			#define GENERIC_READ 0x80000000
58			#define GENERIC_WRITE 0x40000000
59			#define GENERIC_EXECUTE 0x20000000
60			#define GENERIC_ALL 0x10000000
61
62			#define ERROR_FILE_NOT_FOUND 2L
63			#define ERROR_ALREADY_EXISTS 183L
64
65			#define MAX_OPEN_FILES 0x100
66
67	stargo	572	#if (defined(sun) && (defined(__svr4__) \|\| defined(__SVR4)))
68			#define SOLARIS
69			#endif
70
71			#ifdef SOLARIS
72			#define DIRFD(a) ((a)->dd_fd)
73			#else
74			#define DIRFD(a) (dirfd(a))
75			#endif
76
77	n-ki	569	#include <sys/types.h>
78			#include <sys/stat.h>
79			#include <unistd.h>
80			#include <fcntl.h> /* open, close */
81			#include <dirent.h> /* opendir, closedir, readdir */
82			#include <fnmatch.h>
83			#include <errno.h> /* errno */
84	stargo	572
85	stargo	573	#if defined(SOLARIS)
86	stargo	572	#include <sys/statvfs.h> /* solaris statvfs */
87	stargo	574	#define STATFS_FN(path, buf) (statvfs(path,buf))
88			#define STATFS_T statvfs
89	stargo	573	#define F_NAMELEN(buf) ((buf).f_namemax)
90
91	stargo	576	#elif (defined(__OpenBSD__) \|\| defined(__NetBSD__) \|\| defined(__FreeBSD__))
92	stargo	573	#include <sys/param.h>
93			#include <sys/mount.h>
94	stargo	574	#define STATFS_FN(path, buf) (statfs(path,buf))
95			#define STATFS_T statfs
96	stargo	573	#define F_NAMELEN(buf) (NAME_MAX)
97
98	stargo	572	#else
99			#include <sys/vfs.h> /* linux statfs */
100	stargo	574	#define STATFS_FN(path, buf) (statfs(path,buf))
101			#define STATFS_T statfs
102	stargo	573	#define F_NAMELEN(buf) ((buf).f_namelen)
103	stargo	572	#endif
104
105	n-ki	569	#include "rdesktop.h"
106
107			extern RDPDR_DEVICE g_rdpdr_device[];
108
109			struct fileinfo
110			{
111			uint32 device_id, flags_and_attributes;
112			char path[256];
113			DIR *pdir;
114			struct dirent *pdirent;
115			char pattern[64];
116			BOOL delete_on_close;
117			}
118			g_fileinfo[MAX_OPEN_FILES];
119
120			/* Convert seconds since 1970 to a filetime */
121			void
122			seconds_since_1970_to_filetime(time_t seconds, uint32 * high, uint32 * low)
123			{
124			unsigned long long ticks;
125
126			ticks = (seconds + 11644473600LL) * 10000000;
127			*low = (uint32) ticks;
128			*high = (uint32) (ticks >> 32);
129			}
130
131			/* Enumeration of devices from rdesktop.c */
132			/* returns numer of units found and initialized. */
133			/* optarg looks like ':h:=/mnt/floppy,b:=/mnt/usbdevice1' */
134			/* when it arrives to this function. */
135			int
136			disk_enum_devices(int id, char optarg)
137			{
138			char *pos = optarg;
139			char *pos2;
140			int count = 0;
141
142			// skip the first colon
143			optarg++;
144			while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
145			{
146			pos2 = next_arg(optarg, '=');
147			strcpy(g_rdpdr_device[*id].name, optarg);
148
149	stargo	570	toupper_str(g_rdpdr_device[*id].name);
150	n-ki	569
151			/* add trailing colon to name. */
152			strcat(g_rdpdr_device[*id].name, ":");
153
154			g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
155			strcpy(g_rdpdr_device[*id].local_path, pos2);
156			printf("DISK %s to %s\n", g_rdpdr_device[id].name, g_rdpdr_device[id].local_path);
157			g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK;
158			count++;
159			(*id)++;
160
161			optarg = pos;
162			}
163			return count;
164			}
165
166			/* Opens of creates a file or directory */
167			NTSTATUS
168			disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition,
169			uint32 flags_and_attributes, char filename, HANDLE phandle)
170			{
171			HANDLE handle;
172			DIR *dirp;
173			int flags, mode;
174			char path[256];
175
176			handle = 0;
177			dirp = NULL;
178			flags = 0;
179			mode = S_IRWXU \| S_IRGRP \| S_IXGRP \| S_IROTH \| S_IXOTH;
180
181			if (filename[strlen(filename) - 1] == '/')
182			filename[strlen(filename) - 1] = 0;
183			sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename);
184			//printf("Open: %s\n", path);
185
186			switch (create_disposition)
187			{
188			case CREATE_ALWAYS:
189
190			// Delete existing file/link.
191			unlink(path);
192			flags \|= O_CREAT;
193			break;
194
195			case CREATE_NEW:
196
197			// If the file already exists, then fail.
198			flags \|= O_CREAT \| O_EXCL;
199			break;
200
201			case OPEN_ALWAYS:
202
203			// Create if not already exists.
204			flags \|= O_CREAT;
205			break;
206
207			case OPEN_EXISTING:
208
209			// Default behaviour
210			break;
211
212			case TRUNCATE_EXISTING:
213
214			// If the file does not exist, then fail.
215			flags \|= O_TRUNC;
216			break;
217			}
218
219			if (flags_and_attributes & FILE_DIRECTORY_FILE)
220			{
221			if (flags & O_CREAT)
222			{
223			mkdir(path, mode);
224			}
225
226			dirp = opendir(path);
227			if (!dirp)
228			{
229			switch (errno)
230			{
231			case EACCES:
232
233			return STATUS_ACCESS_DENIED;
234
235			case ENOENT:
236
237			return STATUS_NO_SUCH_FILE;
238
239			default:
240
241			perror("opendir");
242			return STATUS_NO_SUCH_FILE;
243			}
244			}
245	stargo	572	handle = DIRFD(dirp);
246	n-ki	569	}
247			else
248			{
249			if (accessmask & GENERIC_ALL
250			\|\| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE))
251			{
252			flags \|= O_RDWR;
253			}
254			else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ))
255			{
256			flags \|= O_WRONLY;
257			}
258			else
259			{
260			flags \|= O_RDONLY;
261			}
262
263			handle = open(path, flags, mode);
264			if (handle == -1)
265			{
266			switch (errno)
267			{
268			case EACCES:
269
270			return STATUS_ACCESS_DENIED;
271
272			case ENOENT:
273
274			return STATUS_NO_SUCH_FILE;
275
276			default:
277
278			perror("open");
279			return STATUS_NO_SUCH_FILE;
280			}
281			}
282			}
283
284			if (handle >= MAX_OPEN_FILES)
285			{
286			error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n",
287			handle);
288			exit(1);
289			}
290
291			if (dirp)
292			g_fileinfo[handle].pdir = dirp;
293			g_fileinfo[handle].device_id = device_id;
294			g_fileinfo[handle].flags_and_attributes = flags_and_attributes;
295			strncpy(g_fileinfo[handle].path, path, 255);
296
297			*phandle = handle;
298			return STATUS_SUCCESS;
299			}
300
301			NTSTATUS
302			disk_close(HANDLE handle)
303			{
304			struct fileinfo *pfinfo;
305
306			pfinfo = &(g_fileinfo[handle]);
307
308			if (pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE)
309			{
310			closedir(pfinfo->pdir);
311			//FIXME: Should check exit code
312			}
313			else
314			{
315			close(handle);
316			}
317
318			return STATUS_SUCCESS;
319			}
320
321			NTSTATUS
322			disk_read(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
323			{
324			int n;
325
326			if (offset)
327			lseek(handle, offset, SEEK_SET);
328			n = read(handle, data, length);
329
330			if (n < 0)
331			{
332			perror("read");
333			*result = 0;
334			return STATUS_INVALID_PARAMETER;
335			}
336
337			*result = n;
338
339			return STATUS_SUCCESS;
340			}
341
342			NTSTATUS
343			disk_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
344			{
345			int n;
346
347			if (offset)
348			lseek(handle, offset, SEEK_SET);
349
350			n = write(handle, data, length);
351
352			if (n < 0)
353			{
354			perror("write");
355			*result = 0;
356			return STATUS_ACCESS_DENIED;
357			}
358
359			*result = n;
360
361			return STATUS_SUCCESS;
362			}
363
364			NTSTATUS
365			disk_query_information(HANDLE handle, uint32 info_class, STREAM out)
366			{
367			uint32 file_attributes, ft_high, ft_low;
368			struct stat filestat;
369			char path, filename;
370
371			path = g_fileinfo[handle].path;
372
373			// Get information about file
374			if (fstat(handle, &filestat) != 0)
375			{
376			perror("stat");
377			out_uint8(out, 0);
378			return STATUS_ACCESS_DENIED;
379			}
380
381			// Set file attributes
382			file_attributes = 0;
383			if (S_ISDIR(filestat.st_mode))
384			{
385			file_attributes \|= FILE_ATTRIBUTE_DIRECTORY;
386			}
387			filename = 1 + strrchr(path, '/');
388			if (filename && filename[0] == '.')
389			{
390			file_attributes \|= FILE_ATTRIBUTE_HIDDEN;
391			}
392
393			// Return requested data
394			switch (info_class)
395			{
396			case 4: /* FileBasicInformation */
397
398			out_uint8s(out, 8); //create_time not available;
399
400			seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low);
401			out_uint32_le(out, ft_low); //last_access_time
402			out_uint32_le(out, ft_high);
403
404			seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low);
405			out_uint32_le(out, ft_low); //last_write_time
406			out_uint32_le(out, ft_high);
407
408			out_uint8s(out, 8); //unknown zero
409			out_uint32_le(out, file_attributes);
410			break;
411
412			case 5: /* FileStandardInformation */
413
414			out_uint32_le(out, filestat.st_size); //Allocation size
415			out_uint32_le(out, 0);
416			out_uint32_le(out, filestat.st_size); //End of file
417			out_uint32_le(out, 0);
418			out_uint32_le(out, filestat.st_nlink); //Number of links
419			out_uint8(out, 0); //Delete pending
420			out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); //Directory
421			break;
422
423			case 35: /* FileObjectIdInformation */
424
425			out_uint32_le(out, file_attributes); /* File Attributes */
426			out_uint32_le(out, 0); /* Reparse Tag */
427			break;
428
429			default:
430
431			unimpl("IRP Query (File) Information class: 0x%x\n", info_class);
432			return STATUS_INVALID_PARAMETER;
433			}
434			return STATUS_SUCCESS;
435			}
436
437			NTSTATUS
438			disk_set_information(HANDLE handle, uint32 info_class, STREAM in, STREAM out)
439			{
440			uint32 device_id, length, file_attributes, ft_high, ft_low;
441			char newname[256], fullpath[256];
442			struct fileinfo *pfinfo;
443
444			pfinfo = &(g_fileinfo[handle]);
445
446			switch (info_class)
447			{
448			case 4: /* FileBasicInformation */
449
450			// Probably safe to ignore
451			break;
452
453			case 10: /* FileRenameInformation */
454
455			in_uint8s(in, 4); /* Handle of root dir? */
456			in_uint8s(in, 0x1a); /* unknown */
457			in_uint32_le(in, length);
458
459			if (length && (length / 2) < 256)
460			{
461			rdp_in_unistr(in, newname, length);
462			convert_to_unix_filename(newname);
463			}
464			else
465			{
466			return STATUS_INVALID_PARAMETER;
467			}
468
469			sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path,
470			newname);
471
472			if (rename(pfinfo->path, fullpath) != 0)
473			{
474			perror("rename");
475			return STATUS_ACCESS_DENIED;
476			}
477			break;
478
479			case 13: /* FileDispositionInformation */
480
481			//unimpl("IRP Set File Information class: FileDispositionInformation\n");
482			// in_uint32_le(in, delete_on_close);
483			// disk_close(handle);
484			unlink(pfinfo->path);
485			break;
486
487			case 19: /* FileAllocationInformation */
488
489			unimpl("IRP Set File Information class: FileAllocationInformation\n");
490			break;
491
492			case 20: /* FileEndOfFileInformation */
493
494			unimpl("IRP Set File Information class: FileEndOfFileInformation\n");
495			break;
496
497			default:
498
499			unimpl("IRP Set File Information class: 0x%x\n", info_class);
500			return STATUS_INVALID_PARAMETER;
501			}
502			return STATUS_SUCCESS;
503			}
504
505			NTSTATUS
506			disk_query_volume_information(HANDLE handle, uint32 info_class, STREAM out)
507			{
508			char volume, fs_type;
509	stargo	574	struct STATFS_T stat_fs;
510	n-ki	569	struct fileinfo *pfinfo;
511
512			pfinfo = &(g_fileinfo[handle]);
513			volume = "RDESKTOP";
514			fs_type = "RDPFS";
515
516	stargo	574	if (STATFS_FN(pfinfo->path, &stat_fs) != 0) /* FIXME: statfs is not portable */
517	n-ki	569	{
518			perror("statfs");
519			return STATUS_ACCESS_DENIED;
520			}
521
522			switch (info_class)
523			{
524			case 1: /* FileFsVolumeInformation */
525
526			out_uint32_le(out, 0); /* volume creation time low */
527			out_uint32_le(out, 0); /* volume creation time high */
528			out_uint32_le(out, 0); /* serial */
529			out_uint32_le(out, 2 * strlen(volume)); /* length of string */
530			out_uint8(out, 0); /* support objects? */
531			rdp_out_unistr(out, volume, 2 * strlen(volume) - 2);
532			break;
533
534			case 3: /* FileFsSizeInformation */
535
536			out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */
537			out_uint32_le(out, 0); /* Total allocation high units */
538			out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */
539			out_uint32_le(out, 0); /* Available allowcation units */
540			out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */
541			out_uint32_le(out, 0x200); /* Bytes per sector */
542			break;
543
544			case 5: /* FileFsAttributeInformation */
545
546			out_uint32_le(out, FS_CASE_SENSITIVE \| FS_CASE_IS_PRESERVED); /* fs attributes */
547	stargo	574	out_uint32_le(out, F_NAMELEN(stat_fs)); /* max length of filename */
548	n-ki	569	out_uint32_le(out, 2 * strlen(fs_type)); /* length of fs_type */
549			rdp_out_unistr(out, fs_type, 2 * strlen(fs_type) - 2);
550			break;
551
552			case 2: /* FileFsLabelInformation */
553			case 4: /* FileFsDeviceInformation */
554			case 6: /* FileFsControlInformation */
555			case 7: /* FileFsFullSizeInformation */
556			case 8: /* FileFsObjectIdInformation */
557			case 9: /* FileFsMaximumInformation */
558			default:
559
560			unimpl("IRP Query Volume Information class: 0x%x\n", info_class);
561			return STATUS_INVALID_PARAMETER;
562			}
563			return STATUS_SUCCESS;
564			}
565
566			NTSTATUS
567			disk_query_directory(HANDLE handle, uint32 info_class, char *pattern, STREAM out)
568			{
569			uint32 file_attributes, ft_low, ft_high;
570			char *dirname, fullpath[256];
571			DIR *pdir;
572			struct dirent *pdirent;
573			struct stat fstat;
574			struct fileinfo *pfinfo;
575
576			pfinfo = &(g_fileinfo[handle]);
577			pdir = pfinfo->pdir;
578			dirname = pfinfo->path;
579			file_attributes = 0;
580
581			switch (info_class)
582			{
583			case 3: //FIXME: Why 3?
584
585			// If a search pattern is received, remember this pattern, and restart search
586			if (pattern[0] != 0)
587			{
588			strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64);
589			rewinddir(pdir);
590			}
591
592			// find next dirent matching pattern
593			pdirent = readdir(pdir);
594			while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0)
595			{
596			pdirent = readdir(pdir);
597			}
598
599			if (pdirent == NULL)
600			{
601			return STATUS_NO_MORE_FILES;
602			}
603
604			// Get information for directory entry
605			sprintf(fullpath, "%s/%s", dirname, pdirent->d_name);
606			/* JIF
607			printf("Stat: %s\n", fullpath); */
608			if (stat(fullpath, &fstat))
609			{
610			perror("stat");
611			out_uint8(out, 0);
612			return STATUS_ACCESS_DENIED;
613			}
614
615			if (S_ISDIR(fstat.st_mode))
616			file_attributes \|= FILE_ATTRIBUTE_DIRECTORY;
617			if (pdirent->d_name[0] == '.')
618			file_attributes \|= FILE_ATTRIBUTE_HIDDEN;
619
620			// Return requested information
621			out_uint8s(out, 8); //unknown zero
622			out_uint8s(out, 8); //create_time not available in posix;
623
624			seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low);
625			out_uint32_le(out, ft_low); //last_access_time
626			out_uint32_le(out, ft_high);
627
628			seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low);
629			out_uint32_le(out, ft_low); //last_write_time
630			out_uint32_le(out, ft_high);
631
632			out_uint8s(out, 8); //unknown zero
633			out_uint32_le(out, fstat.st_size); //filesize low
634			out_uint32_le(out, 0); //filesize high
635			out_uint32_le(out, fstat.st_size); //filesize low
636			out_uint32_le(out, 0); //filesize high
637			out_uint32_le(out, file_attributes);
638			out_uint8(out, 2 * strlen(pdirent->d_name) + 2); //unicode length
639			out_uint8s(out, 7); //pad?
640			out_uint8(out, 0); //8.3 file length
641			out_uint8s(out, 2 * 12); //8.3 unicode length
642			rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name));
643			break;
644
645			default:
646
647			unimpl("IRP Query Directory sub: 0x%x\n", info_class);
648			return STATUS_INVALID_PARAMETER;
649			}
650
651			return STATUS_SUCCESS;
652			}
653
654			DEVICE_FNS disk_fns = {
655			disk_create,
656			disk_close,
657			disk_read,
658			disk_write,
659			NULL /* device_control */
660			};