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 */

#ifdef SOLARIS
#include <sys/statvfs.h>        /* solaris statvfs */
#define HAVE_STATVFS
#else
#include <sys/vfs.h>            /* linux statfs */
#define HAVE_STATFS
#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);
        buf->f_namelen = statbuf.f_namelen;
#elif defined(HAVE_STATVFS)
        ret = statvfs(path, &statbuf);
        buf->f_namelen = statbuf.f_namemax;
#else
        ret=-1;
#endif

        buf->f_blocks = statbuf.f_blocks;
        buf->f_bfree = statbuf.f_bfree;
        buf->f_bsize = statbuf.f_bsize;

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