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 HAVE_STATVFS
#define F_NAMELEN(buf) ((buf).f_namemax)

#elif defined(__OpenBSD__)
#include <sys/param.h>
#include <sys/mount.h>
#define HAVE_STATFS
#define F_NAMELEN(buf) (NAME_MAX)

#else
#include <sys/vfs.h>            /* linux statfs */
#define HAVE_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];

struct fsinfo
{
        uint32 f_blocks, f_bfree, f_bsize, f_namelen;
};

/* 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;
}

int fsstat(const char *path, struct fsinfo *buf)
{
        int ret;
#if defined(HAVE_STATFS)
        struct statfs statbuf;
#elif defined(HAVE_STATVFS)
        struct statvfs statbuf;
#endif

#if defined(HAVE_STATFS)
        ret = statfs(path, &statbuf);
#elif defined(HAVE_STATVFS)
        ret = statvfs(path, &statbuf);
#else
        ret=-1;
#endif

        buf->f_blocks = statbuf.f_blocks;
        buf->f_bfree = statbuf.f_bfree;
        buf->f_bsize = statbuf.f_bsize;
        buf->f_namelen = F_NAMELEN(statbuf);

        return ret;
}

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

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

        if (fsstat(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, stat_fs.f_namelen);  /* 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			#define HAVE_STATVFS
88	stargo	573	#define F_NAMELEN(buf) ((buf).f_namemax)
89
90			#elif defined(__OpenBSD__)
91			#include <sys/param.h>
92			#include <sys/mount.h>
93			#define HAVE_STATFS
94			#define F_NAMELEN(buf) (NAME_MAX)
95
96	stargo	572	#else
97			#include <sys/vfs.h> /* linux statfs */
98			#define HAVE_STATFS
99	stargo	573	#define F_NAMELEN(buf) ((buf).f_namelen)
100	stargo	572	#endif
101
102	n-ki	569	#include "rdesktop.h"
103
104			extern RDPDR_DEVICE g_rdpdr_device[];
105
106			struct fileinfo
107			{
108			uint32 device_id, flags_and_attributes;
109			char path[256];
110			DIR *pdir;
111			struct dirent *pdirent;
112			char pattern[64];
113			BOOL delete_on_close;
114			}
115			g_fileinfo[MAX_OPEN_FILES];
116
117	stargo	572	struct fsinfo
118			{
119			uint32 f_blocks, f_bfree, f_bsize, f_namelen;
120			};
121
122	n-ki	569	/* Convert seconds since 1970 to a filetime */
123			void
124			seconds_since_1970_to_filetime(time_t seconds, uint32 * high, uint32 * low)
125			{
126			unsigned long long ticks;
127
128			ticks = (seconds + 11644473600LL) * 10000000;
129			*low = (uint32) ticks;
130			*high = (uint32) (ticks >> 32);
131			}
132
133			/* Enumeration of devices from rdesktop.c */
134			/* returns numer of units found and initialized. */
135			/* optarg looks like ':h:=/mnt/floppy,b:=/mnt/usbdevice1' */
136			/* when it arrives to this function. */
137			int
138			disk_enum_devices(int id, char optarg)
139			{
140			char *pos = optarg;
141			char *pos2;
142			int count = 0;
143
144			// skip the first colon
145			optarg++;
146			while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
147			{
148			pos2 = next_arg(optarg, '=');
149			strcpy(g_rdpdr_device[*id].name, optarg);
150
151	stargo	570	toupper_str(g_rdpdr_device[*id].name);
152	n-ki	569
153			/* add trailing colon to name. */
154			strcat(g_rdpdr_device[*id].name, ":");
155
156			g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
157			strcpy(g_rdpdr_device[*id].local_path, pos2);
158			printf("DISK %s to %s\n", g_rdpdr_device[id].name, g_rdpdr_device[id].local_path);
159			g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK;
160			count++;
161			(*id)++;
162
163			optarg = pos;
164			}
165			return count;
166			}
167
168			/* Opens of creates a file or directory */
169			NTSTATUS
170			disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition,
171			uint32 flags_and_attributes, char filename, HANDLE phandle)
172			{
173			HANDLE handle;
174			DIR *dirp;
175			int flags, mode;
176			char path[256];
177
178			handle = 0;
179			dirp = NULL;
180			flags = 0;
181			mode = S_IRWXU \| S_IRGRP \| S_IXGRP \| S_IROTH \| S_IXOTH;
182
183			if (filename[strlen(filename) - 1] == '/')
184			filename[strlen(filename) - 1] = 0;
185			sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename);
186			//printf("Open: %s\n", path);
187
188			switch (create_disposition)
189			{
190			case CREATE_ALWAYS:
191
192			// Delete existing file/link.
193			unlink(path);
194			flags \|= O_CREAT;
195			break;
196
197			case CREATE_NEW:
198
199			// If the file already exists, then fail.
200			flags \|= O_CREAT \| O_EXCL;
201			break;
202
203			case OPEN_ALWAYS:
204
205			// Create if not already exists.
206			flags \|= O_CREAT;
207			break;
208
209			case OPEN_EXISTING:
210
211			// Default behaviour
212			break;
213
214			case TRUNCATE_EXISTING:
215
216			// If the file does not exist, then fail.
217			flags \|= O_TRUNC;
218			break;
219			}
220
221			if (flags_and_attributes & FILE_DIRECTORY_FILE)
222			{
223			if (flags & O_CREAT)
224			{
225			mkdir(path, mode);
226			}
227
228			dirp = opendir(path);
229			if (!dirp)
230			{
231			switch (errno)
232			{
233			case EACCES:
234
235			return STATUS_ACCESS_DENIED;
236
237			case ENOENT:
238
239			return STATUS_NO_SUCH_FILE;
240
241			default:
242
243			perror("opendir");
244			return STATUS_NO_SUCH_FILE;
245			}
246			}
247	stargo	572	handle = DIRFD(dirp);
248	n-ki	569	}
249			else
250			{
251			if (accessmask & GENERIC_ALL
252			\|\| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE))
253			{
254			flags \|= O_RDWR;
255			}
256			else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ))
257			{
258			flags \|= O_WRONLY;
259			}
260			else
261			{
262			flags \|= O_RDONLY;
263			}
264
265			handle = open(path, flags, mode);
266			if (handle == -1)
267			{
268			switch (errno)
269			{
270			case EACCES:
271
272			return STATUS_ACCESS_DENIED;
273
274			case ENOENT:
275
276			return STATUS_NO_SUCH_FILE;
277
278			default:
279
280			perror("open");
281			return STATUS_NO_SUCH_FILE;
282			}
283			}
284			}
285
286			if (handle >= MAX_OPEN_FILES)
287			{
288			error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n",
289			handle);
290			exit(1);
291			}
292
293			if (dirp)
294			g_fileinfo[handle].pdir = dirp;
295			g_fileinfo[handle].device_id = device_id;
296			g_fileinfo[handle].flags_and_attributes = flags_and_attributes;
297			strncpy(g_fileinfo[handle].path, path, 255);
298
299			*phandle = handle;
300			return STATUS_SUCCESS;
301			}
302
303			NTSTATUS
304			disk_close(HANDLE handle)
305			{
306			struct fileinfo *pfinfo;
307
308			pfinfo = &(g_fileinfo[handle]);
309
310			if (pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE)
311			{
312			closedir(pfinfo->pdir);
313			//FIXME: Should check exit code
314			}
315			else
316			{
317			close(handle);
318			}
319
320			return STATUS_SUCCESS;
321			}
322
323			NTSTATUS
324			disk_read(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
325			{
326			int n;
327
328			if (offset)
329			lseek(handle, offset, SEEK_SET);
330			n = read(handle, data, length);
331
332			if (n < 0)
333			{
334			perror("read");
335			*result = 0;
336			return STATUS_INVALID_PARAMETER;
337			}
338
339			*result = n;
340
341			return STATUS_SUCCESS;
342			}
343
344			NTSTATUS
345			disk_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
346			{
347			int n;
348
349			if (offset)
350			lseek(handle, offset, SEEK_SET);
351
352			n = write(handle, data, length);
353
354			if (n < 0)
355			{
356			perror("write");
357			*result = 0;
358			return STATUS_ACCESS_DENIED;
359			}
360
361			*result = n;
362
363			return STATUS_SUCCESS;
364			}
365
366			NTSTATUS
367			disk_query_information(HANDLE handle, uint32 info_class, STREAM out)
368			{
369			uint32 file_attributes, ft_high, ft_low;
370			struct stat filestat;
371			char path, filename;
372
373			path = g_fileinfo[handle].path;
374
375			// Get information about file
376			if (fstat(handle, &filestat) != 0)
377			{
378			perror("stat");
379			out_uint8(out, 0);
380			return STATUS_ACCESS_DENIED;
381			}
382
383			// Set file attributes
384			file_attributes = 0;
385			if (S_ISDIR(filestat.st_mode))
386			{
387			file_attributes \|= FILE_ATTRIBUTE_DIRECTORY;
388			}
389			filename = 1 + strrchr(path, '/');
390			if (filename && filename[0] == '.')
391			{
392			file_attributes \|= FILE_ATTRIBUTE_HIDDEN;
393			}
394
395			// Return requested data
396			switch (info_class)
397			{
398			case 4: /* FileBasicInformation */
399
400			out_uint8s(out, 8); //create_time not available;
401
402			seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low);
403			out_uint32_le(out, ft_low); //last_access_time
404			out_uint32_le(out, ft_high);
405
406			seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low);
407			out_uint32_le(out, ft_low); //last_write_time
408			out_uint32_le(out, ft_high);
409
410			out_uint8s(out, 8); //unknown zero
411			out_uint32_le(out, file_attributes);
412			break;
413
414			case 5: /* FileStandardInformation */
415
416			out_uint32_le(out, filestat.st_size); //Allocation size
417			out_uint32_le(out, 0);
418			out_uint32_le(out, filestat.st_size); //End of file
419			out_uint32_le(out, 0);
420			out_uint32_le(out, filestat.st_nlink); //Number of links
421			out_uint8(out, 0); //Delete pending
422			out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); //Directory
423			break;
424
425			case 35: /* FileObjectIdInformation */
426
427			out_uint32_le(out, file_attributes); /* File Attributes */
428			out_uint32_le(out, 0); /* Reparse Tag */
429			break;
430
431			default:
432
433			unimpl("IRP Query (File) Information class: 0x%x\n", info_class);
434			return STATUS_INVALID_PARAMETER;
435			}
436			return STATUS_SUCCESS;
437			}
438
439			NTSTATUS
440			disk_set_information(HANDLE handle, uint32 info_class, STREAM in, STREAM out)
441			{
442			uint32 device_id, length, file_attributes, ft_high, ft_low;
443			char newname[256], fullpath[256];
444			struct fileinfo *pfinfo;
445
446			pfinfo = &(g_fileinfo[handle]);
447
448			switch (info_class)
449			{
450			case 4: /* FileBasicInformation */
451
452			// Probably safe to ignore
453			break;
454
455			case 10: /* FileRenameInformation */
456
457			in_uint8s(in, 4); /* Handle of root dir? */
458			in_uint8s(in, 0x1a); /* unknown */
459			in_uint32_le(in, length);
460
461			if (length && (length / 2) < 256)
462			{
463			rdp_in_unistr(in, newname, length);
464			convert_to_unix_filename(newname);
465			}
466			else
467			{
468			return STATUS_INVALID_PARAMETER;
469			}
470
471			sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path,
472			newname);
473
474			if (rename(pfinfo->path, fullpath) != 0)
475			{
476			perror("rename");
477			return STATUS_ACCESS_DENIED;
478			}
479			break;
480
481			case 13: /* FileDispositionInformation */
482
483			//unimpl("IRP Set File Information class: FileDispositionInformation\n");
484			// in_uint32_le(in, delete_on_close);
485			// disk_close(handle);
486			unlink(pfinfo->path);
487			break;
488
489			case 19: /* FileAllocationInformation */
490
491			unimpl("IRP Set File Information class: FileAllocationInformation\n");
492			break;
493
494			case 20: /* FileEndOfFileInformation */
495
496			unimpl("IRP Set File Information class: FileEndOfFileInformation\n");
497			break;
498
499			default:
500
501			unimpl("IRP Set File Information class: 0x%x\n", info_class);
502			return STATUS_INVALID_PARAMETER;
503			}
504			return STATUS_SUCCESS;
505			}
506
507	stargo	572	int fsstat(const char path, struct fsinfo buf)
508			{
509			int ret;
510			#if defined(HAVE_STATFS)
511			struct statfs statbuf;
512			#elif defined(HAVE_STATVFS)
513			struct statvfs statbuf;
514			#endif
515
516			#if defined(HAVE_STATFS)
517			ret = statfs(path, &statbuf);
518			#elif defined(HAVE_STATVFS)
519			ret = statvfs(path, &statbuf);
520			#else
521			ret=-1;
522			#endif
523
524			buf->f_blocks = statbuf.f_blocks;
525			buf->f_bfree = statbuf.f_bfree;
526			buf->f_bsize = statbuf.f_bsize;
527	stargo	573	buf->f_namelen = F_NAMELEN(statbuf);
528	stargo	572
529			return ret;
530			}
531
532	n-ki	569	NTSTATUS
533			disk_query_volume_information(HANDLE handle, uint32 info_class, STREAM out)
534			{
535			char volume, fs_type;
536	stargo	572	struct fsinfo stat_fs;
537	n-ki	569	struct fileinfo *pfinfo;
538
539			pfinfo = &(g_fileinfo[handle]);
540			volume = "RDESKTOP";
541			fs_type = "RDPFS";
542
543	stargo	572	if (fsstat(pfinfo->path, &stat_fs) != 0) /* FIXME: statfs is not portable */
544	n-ki	569	{
545			perror("statfs");
546			return STATUS_ACCESS_DENIED;
547			}
548
549			switch (info_class)
550			{
551			case 1: /* FileFsVolumeInformation */
552
553			out_uint32_le(out, 0); /* volume creation time low */
554			out_uint32_le(out, 0); /* volume creation time high */
555			out_uint32_le(out, 0); /* serial */
556			out_uint32_le(out, 2 * strlen(volume)); /* length of string */
557			out_uint8(out, 0); /* support objects? */
558			rdp_out_unistr(out, volume, 2 * strlen(volume) - 2);
559			break;
560
561			case 3: /* FileFsSizeInformation */
562
563			out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */
564			out_uint32_le(out, 0); /* Total allocation high units */
565			out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */
566			out_uint32_le(out, 0); /* Available allowcation units */
567			out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */
568			out_uint32_le(out, 0x200); /* Bytes per sector */
569			break;
570
571			case 5: /* FileFsAttributeInformation */
572
573			out_uint32_le(out, FS_CASE_SENSITIVE \| FS_CASE_IS_PRESERVED); /* fs attributes */
574			out_uint32_le(out, stat_fs.f_namelen); /* max length of filename */
575			out_uint32_le(out, 2 * strlen(fs_type)); /* length of fs_type */
576			rdp_out_unistr(out, fs_type, 2 * strlen(fs_type) - 2);
577			break;
578
579			case 2: /* FileFsLabelInformation */
580			case 4: /* FileFsDeviceInformation */
581			case 6: /* FileFsControlInformation */
582			case 7: /* FileFsFullSizeInformation */
583			case 8: /* FileFsObjectIdInformation */
584			case 9: /* FileFsMaximumInformation */
585			default:
586
587			unimpl("IRP Query Volume Information class: 0x%x\n", info_class);
588			return STATUS_INVALID_PARAMETER;
589			}
590			return STATUS_SUCCESS;
591			}
592
593			NTSTATUS
594			disk_query_directory(HANDLE handle, uint32 info_class, char *pattern, STREAM out)
595			{
596			uint32 file_attributes, ft_low, ft_high;
597			char *dirname, fullpath[256];
598			DIR *pdir;
599			struct dirent *pdirent;
600			struct stat fstat;
601			struct fileinfo *pfinfo;
602
603			pfinfo = &(g_fileinfo[handle]);
604			pdir = pfinfo->pdir;
605			dirname = pfinfo->path;
606			file_attributes = 0;
607
608			switch (info_class)
609			{
610			case 3: //FIXME: Why 3?
611
612			// If a search pattern is received, remember this pattern, and restart search
613			if (pattern[0] != 0)
614			{
615			strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64);
616			rewinddir(pdir);
617			}
618
619			// find next dirent matching pattern
620			pdirent = readdir(pdir);
621			while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0)
622			{
623			pdirent = readdir(pdir);
624			}
625
626			if (pdirent == NULL)
627			{
628			return STATUS_NO_MORE_FILES;
629			}
630
631			// Get information for directory entry
632			sprintf(fullpath, "%s/%s", dirname, pdirent->d_name);
633			/* JIF
634			printf("Stat: %s\n", fullpath); */
635			if (stat(fullpath, &fstat))
636			{
637			perror("stat");
638			out_uint8(out, 0);
639			return STATUS_ACCESS_DENIED;
640			}
641
642			if (S_ISDIR(fstat.st_mode))
643			file_attributes \|= FILE_ATTRIBUTE_DIRECTORY;
644			if (pdirent->d_name[0] == '.')
645			file_attributes \|= FILE_ATTRIBUTE_HIDDEN;
646
647			// Return requested information
648			out_uint8s(out, 8); //unknown zero
649			out_uint8s(out, 8); //create_time not available in posix;
650
651			seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low);
652			out_uint32_le(out, ft_low); //last_access_time
653			out_uint32_le(out, ft_high);
654
655			seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low);
656			out_uint32_le(out, ft_low); //last_write_time
657			out_uint32_le(out, ft_high);
658
659			out_uint8s(out, 8); //unknown zero
660			out_uint32_le(out, fstat.st_size); //filesize low
661			out_uint32_le(out, 0); //filesize high
662			out_uint32_le(out, fstat.st_size); //filesize low
663			out_uint32_le(out, 0); //filesize high
664			out_uint32_le(out, file_attributes);
665			out_uint8(out, 2 * strlen(pdirent->d_name) + 2); //unicode length
666			out_uint8s(out, 7); //pad?
667			out_uint8(out, 0); //8.3 file length
668			out_uint8s(out, 2 * 12); //8.3 unicode length
669			rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name));
670			break;
671
672			default:
673
674			unimpl("IRP Query Directory sub: 0x%x\n", info_class);
675			return STATUS_INVALID_PARAMETER;
676			}
677
678			return STATUS_SUCCESS;
679			}
680
681			DEVICE_FNS disk_fns = {
682			disk_create,
683			disk_close,
684			disk_read,
685			disk_write,
686			NULL /* device_control */
687			};