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

#include <sys/types.h>
#include <sys/stat.h>
#include <sys/vfs.h>            /* linux statfs */
#include <unistd.h>
#include <fcntl.h>              /* open, close */
#include <dirent.h>             /* opendir, closedir, readdir */
#include <fnmatch.h>
#include <errno.h>              /* errno */
#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); /* FIXME: dirfd is not portable */
        }
        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 stat_fs;
        struct fileinfo *pfinfo;

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

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