1 |
/* -*- c-basic-offset: 8 -*- |
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rdesktop: A Remote Desktop Protocol client. |
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Disk Redirection |
4 |
Copyright (C) Jeroen Meijer 2003 |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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|
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#include "disk.h" |
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|
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <unistd.h> |
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#include <fcntl.h> /* open, close */ |
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#include <dirent.h> /* opendir, closedir, readdir */ |
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#include <fnmatch.h> |
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#include <errno.h> /* errno */ |
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|
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#include <utime.h> |
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#include <time.h> /* ctime */ |
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|
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#if (defined(HAVE_DIRFD) || (HAVE_DECL_DIRFD == 1)) |
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#define DIRFD(a) (dirfd(a)) |
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#else |
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#define DIRFD(a) ((a)->DIR_FD_MEMBER_NAME) |
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#endif |
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|
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/* TODO: let autoconf figure out everything below... */ |
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#if (defined(sun) && (defined(__svr4__) || defined(__SVR4))) |
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#define SOLARIS |
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#endif |
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|
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#if (defined(SOLARIS) || defined (__hpux) || defined(__BEOS__)) |
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#include <sys/statvfs.h> /* solaris statvfs */ |
47 |
/* TODO: Fix mntent-handling for solaris/hpux |
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* #include <sys/mntent.h> */ |
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#undef HAVE_MNTENT_H |
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#define MNTENT_PATH "/etc/mnttab" |
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#define STATFS_FN(path, buf) (statvfs(path,buf)) |
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#define STATFS_T statvfs |
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#define F_NAMELEN(buf) ((buf).f_namemax) |
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|
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#elif (defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__APPLE__)) |
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#include <sys/param.h> |
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#include <sys/mount.h> |
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#define STATFS_FN(path, buf) (statfs(path,buf)) |
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#define STATFS_T statfs |
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#define F_NAMELEN(buf) (NAME_MAX) |
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|
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#elif (defined(__SGI_IRIX__)) |
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#include <sys/types.h> |
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#include <sys/statvfs.h> |
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#define STATFS_FN(path, buf) (statvfs(path,buf)) |
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#define STATFS_T statvfs |
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#define F_NAMELEN(buf) ((buf).f_namemax) |
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|
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#else |
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#include <sys/vfs.h> /* linux statfs */ |
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#include <mntent.h> |
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#define HAVE_MNTENT_H |
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#define MNTENT_PATH "/etc/mtab" |
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#define STATFS_FN(path, buf) (statfs(path,buf)) |
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#define STATFS_T statfs |
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#define F_NAMELEN(buf) ((buf).f_namelen) |
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#endif |
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|
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#include "rdesktop.h" |
80 |
|
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extern RDPDR_DEVICE g_rdpdr_device[]; |
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|
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FILEINFO g_fileinfo[MAX_OPEN_FILES]; |
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|
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typedef struct |
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{ |
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char name[256]; |
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char label[256]; |
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unsigned long serial; |
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char type[256]; |
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} FsInfoType; |
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|
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|
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static time_t |
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get_create_time(struct stat *st) |
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{ |
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time_t ret, ret1; |
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|
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ret = MIN(st->st_ctime, st->st_mtime); |
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ret1 = MIN(ret, st->st_atime); |
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|
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if (ret1 != (time_t) 0) |
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return ret1; |
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|
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return ret; |
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} |
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|
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/* Convert seconds since 1970 to a filetime */ |
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static void |
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seconds_since_1970_to_filetime(time_t seconds, uint32 * high, uint32 * low) |
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{ |
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unsigned long long ticks; |
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|
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ticks = (seconds + 11644473600LL) * 10000000; |
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*low = (uint32) ticks; |
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*high = (uint32) (ticks >> 32); |
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} |
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|
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/* Convert seconds since 1970 back to filetime */ |
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static time_t |
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convert_1970_to_filetime(uint32 high, uint32 low) |
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{ |
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unsigned long long ticks; |
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time_t val; |
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|
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ticks = low + (((unsigned long long) high) << 32); |
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ticks /= 10000000; |
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ticks -= 11644473600LL; |
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|
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val = (time_t) ticks; |
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return (val); |
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|
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} |
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|
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/* A wrapper for ftruncate which supports growing files, even if the |
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native ftruncate doesn't. This is needed on Linux FAT filesystems, |
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for example. */ |
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static int |
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ftruncate_growable(int fd, off_t length) |
140 |
{ |
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int ret; |
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off_t pos; |
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static const char zero; |
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|
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/* Try the simple method first */ |
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if ((ret = ftruncate(fd, length)) != -1) |
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{ |
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return ret; |
149 |
} |
150 |
|
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/* |
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* Some kind of error. Perhaps we were trying to grow. Retry |
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* in a safe way. |
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*/ |
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|
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/* Get current position */ |
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if ((pos = lseek(fd, 0, SEEK_CUR)) == -1) |
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{ |
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perror("lseek"); |
160 |
return -1; |
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} |
162 |
|
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/* Seek to new size */ |
164 |
if (lseek(fd, length, SEEK_SET) == -1) |
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{ |
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perror("lseek"); |
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return -1; |
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} |
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|
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/* Write a zero */ |
171 |
if (write(fd, &zero, 1) == -1) |
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{ |
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perror("write"); |
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return -1; |
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} |
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|
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/* Truncate. This shouldn't fail. */ |
178 |
if (ftruncate(fd, length) == -1) |
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{ |
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perror("ftruncate"); |
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return -1; |
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} |
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|
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/* Restore position */ |
185 |
if (lseek(fd, pos, SEEK_SET) == -1) |
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{ |
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perror("lseek"); |
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return -1; |
189 |
} |
190 |
|
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return 0; |
192 |
} |
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|
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|
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/* Enumeration of devices from rdesktop.c */ |
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/* returns numer of units found and initialized. */ |
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/* optarg looks like ':h=/mnt/floppy,b=/mnt/usbdevice1' */ |
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/* when it arrives to this function. */ |
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int |
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disk_enum_devices(uint32 * id, char *optarg) |
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{ |
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char *pos = optarg; |
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char *pos2; |
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int count = 0; |
205 |
|
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// skip the first colon |
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optarg++; |
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while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
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{ |
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pos2 = next_arg(optarg, '='); |
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|
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strncpy(g_rdpdr_device[*id].name, optarg, sizeof(g_rdpdr_device[*id].name)); |
213 |
if (strlen(optarg) > 8) |
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fprintf(stderr, "share name %s truncated to %s\n", optarg, |
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g_rdpdr_device[*id].name); |
216 |
|
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g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
218 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
219 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK; |
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count++; |
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(*id)++; |
222 |
|
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optarg = pos; |
224 |
} |
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return count; |
226 |
} |
227 |
|
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/* Opens or creates a file or directory */ |
229 |
static NTSTATUS |
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disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition, |
231 |
uint32 flags_and_attributes, char *filename, NTHANDLE * phandle) |
232 |
{ |
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NTHANDLE handle; |
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DIR *dirp; |
235 |
int flags, mode; |
236 |
char path[256]; |
237 |
struct stat filestat; |
238 |
|
239 |
handle = 0; |
240 |
dirp = NULL; |
241 |
flags = 0; |
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mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; |
243 |
|
244 |
if (*filename && filename[strlen(filename) - 1] == '/') |
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filename[strlen(filename) - 1] = 0; |
246 |
sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename); |
247 |
|
248 |
switch (create_disposition) |
249 |
{ |
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case CREATE_ALWAYS: |
251 |
|
252 |
// Delete existing file/link. |
253 |
unlink(path); |
254 |
flags |= O_CREAT; |
255 |
break; |
256 |
|
257 |
case CREATE_NEW: |
258 |
|
259 |
// If the file already exists, then fail. |
260 |
flags |= O_CREAT | O_EXCL; |
261 |
break; |
262 |
|
263 |
case OPEN_ALWAYS: |
264 |
|
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// Create if not already exists. |
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flags |= O_CREAT; |
267 |
break; |
268 |
|
269 |
case OPEN_EXISTING: |
270 |
|
271 |
// Default behaviour |
272 |
break; |
273 |
|
274 |
case TRUNCATE_EXISTING: |
275 |
|
276 |
// If the file does not exist, then fail. |
277 |
flags |= O_TRUNC; |
278 |
break; |
279 |
} |
280 |
|
281 |
//printf("Open: \"%s\" flags: %u, accessmask: %u sharemode: %u create disp: %u\n", path, flags_and_attributes, accessmask, sharemode, create_disposition); |
282 |
|
283 |
// Get information about file and set that flag ourselfs |
284 |
if ((stat(path, &filestat) == 0) && (S_ISDIR(filestat.st_mode))) |
285 |
{ |
286 |
if (flags_and_attributes & FILE_NON_DIRECTORY_FILE) |
287 |
return STATUS_FILE_IS_A_DIRECTORY; |
288 |
else |
289 |
flags_and_attributes |= FILE_DIRECTORY_FILE; |
290 |
} |
291 |
|
292 |
if (flags_and_attributes & FILE_DIRECTORY_FILE) |
293 |
{ |
294 |
if (flags & O_CREAT) |
295 |
{ |
296 |
mkdir(path, mode); |
297 |
} |
298 |
|
299 |
dirp = opendir(path); |
300 |
if (!dirp) |
301 |
{ |
302 |
switch (errno) |
303 |
{ |
304 |
case EACCES: |
305 |
|
306 |
return STATUS_ACCESS_DENIED; |
307 |
|
308 |
case ENOENT: |
309 |
|
310 |
return STATUS_NO_SUCH_FILE; |
311 |
|
312 |
default: |
313 |
|
314 |
perror("opendir"); |
315 |
return STATUS_NO_SUCH_FILE; |
316 |
} |
317 |
} |
318 |
handle = DIRFD(dirp); |
319 |
} |
320 |
else |
321 |
{ |
322 |
|
323 |
if (accessmask & GENERIC_ALL |
324 |
|| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE)) |
325 |
{ |
326 |
flags |= O_RDWR; |
327 |
} |
328 |
else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ)) |
329 |
{ |
330 |
flags |= O_WRONLY; |
331 |
} |
332 |
else |
333 |
{ |
334 |
flags |= O_RDONLY; |
335 |
} |
336 |
|
337 |
handle = open(path, flags, mode); |
338 |
if (handle == -1) |
339 |
{ |
340 |
switch (errno) |
341 |
{ |
342 |
case EISDIR: |
343 |
|
344 |
return STATUS_FILE_IS_A_DIRECTORY; |
345 |
|
346 |
case EACCES: |
347 |
|
348 |
return STATUS_ACCESS_DENIED; |
349 |
|
350 |
case ENOENT: |
351 |
|
352 |
return STATUS_NO_SUCH_FILE; |
353 |
case EEXIST: |
354 |
|
355 |
return STATUS_OBJECT_NAME_COLLISION; |
356 |
default: |
357 |
|
358 |
perror("open"); |
359 |
return STATUS_NO_SUCH_FILE; |
360 |
} |
361 |
} |
362 |
|
363 |
/* all read and writes of files should be non blocking */ |
364 |
if (fcntl(handle, F_SETFL, O_NONBLOCK) == -1) |
365 |
perror("fcntl"); |
366 |
} |
367 |
|
368 |
if (handle >= MAX_OPEN_FILES) |
369 |
{ |
370 |
error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n", |
371 |
handle); |
372 |
exit(1); |
373 |
} |
374 |
|
375 |
if (dirp) |
376 |
g_fileinfo[handle].pdir = dirp; |
377 |
g_fileinfo[handle].device_id = device_id; |
378 |
g_fileinfo[handle].flags_and_attributes = flags_and_attributes; |
379 |
strncpy(g_fileinfo[handle].path, path, 255); |
380 |
|
381 |
*phandle = handle; |
382 |
return STATUS_SUCCESS; |
383 |
} |
384 |
|
385 |
static NTSTATUS |
386 |
disk_close(NTHANDLE handle) |
387 |
{ |
388 |
struct fileinfo *pfinfo; |
389 |
|
390 |
pfinfo = &(g_fileinfo[handle]); |
391 |
|
392 |
if (pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE) |
393 |
{ |
394 |
closedir(pfinfo->pdir); |
395 |
//FIXME: Should check exit code |
396 |
} |
397 |
else |
398 |
{ |
399 |
close(handle); |
400 |
} |
401 |
|
402 |
return STATUS_SUCCESS; |
403 |
} |
404 |
|
405 |
static NTSTATUS |
406 |
disk_read(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
407 |
{ |
408 |
int n; |
409 |
|
410 |
#if 0 |
411 |
/* browsing dir ???? */ |
412 |
/* each request is 24 bytes */ |
413 |
if (g_fileinfo[handle].flags_and_attributes & FILE_DIRECTORY_FILE) |
414 |
{ |
415 |
*result = 0; |
416 |
return STATUS_SUCCESS; |
417 |
} |
418 |
#endif |
419 |
|
420 |
lseek(handle, offset, SEEK_SET); |
421 |
|
422 |
n = read(handle, data, length); |
423 |
|
424 |
if (n < 0) |
425 |
{ |
426 |
*result = 0; |
427 |
switch (errno) |
428 |
{ |
429 |
case EISDIR: |
430 |
return STATUS_FILE_IS_A_DIRECTORY; |
431 |
default: |
432 |
perror("read"); |
433 |
return STATUS_INVALID_PARAMETER; |
434 |
} |
435 |
} |
436 |
|
437 |
*result = n; |
438 |
|
439 |
return STATUS_SUCCESS; |
440 |
} |
441 |
|
442 |
static NTSTATUS |
443 |
disk_write(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
444 |
{ |
445 |
int n; |
446 |
|
447 |
lseek(handle, offset, SEEK_SET); |
448 |
|
449 |
n = write(handle, data, length); |
450 |
|
451 |
if (n < 0) |
452 |
{ |
453 |
perror("write"); |
454 |
*result = 0; |
455 |
switch (errno) |
456 |
{ |
457 |
case ENOSPC: |
458 |
return STATUS_DISK_FULL; |
459 |
default: |
460 |
return STATUS_ACCESS_DENIED; |
461 |
} |
462 |
} |
463 |
|
464 |
*result = n; |
465 |
|
466 |
return STATUS_SUCCESS; |
467 |
} |
468 |
|
469 |
NTSTATUS |
470 |
disk_query_information(NTHANDLE handle, uint32 info_class, STREAM out) |
471 |
{ |
472 |
uint32 file_attributes, ft_high, ft_low; |
473 |
struct stat filestat; |
474 |
char *path, *filename; |
475 |
|
476 |
path = g_fileinfo[handle].path; |
477 |
|
478 |
// Get information about file |
479 |
if (fstat(handle, &filestat) != 0) |
480 |
{ |
481 |
perror("stat"); |
482 |
out_uint8(out, 0); |
483 |
return STATUS_ACCESS_DENIED; |
484 |
} |
485 |
|
486 |
// Set file attributes |
487 |
file_attributes = 0; |
488 |
if (S_ISDIR(filestat.st_mode)) |
489 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
490 |
|
491 |
filename = 1 + strrchr(path, '/'); |
492 |
if (filename && filename[0] == '.') |
493 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
494 |
|
495 |
if (!file_attributes) |
496 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
497 |
|
498 |
if (!(filestat.st_mode & S_IWUSR)) |
499 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
500 |
|
501 |
// Return requested data |
502 |
switch (info_class) |
503 |
{ |
504 |
case FileBasicInformation: |
505 |
seconds_since_1970_to_filetime(get_create_time(&filestat), &ft_high, |
506 |
&ft_low); |
507 |
out_uint32_le(out, ft_low); //create_access_time |
508 |
out_uint32_le(out, ft_high); |
509 |
|
510 |
seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low); |
511 |
out_uint32_le(out, ft_low); //last_access_time |
512 |
out_uint32_le(out, ft_high); |
513 |
|
514 |
seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low); |
515 |
out_uint32_le(out, ft_low); //last_write_time |
516 |
out_uint32_le(out, ft_high); |
517 |
|
518 |
seconds_since_1970_to_filetime(filestat.st_ctime, &ft_high, &ft_low); |
519 |
out_uint32_le(out, ft_low); //last_change_time |
520 |
out_uint32_le(out, ft_high); |
521 |
|
522 |
out_uint32_le(out, file_attributes); |
523 |
break; |
524 |
|
525 |
case FileStandardInformation: |
526 |
|
527 |
out_uint32_le(out, filestat.st_size); //Allocation size |
528 |
out_uint32_le(out, 0); |
529 |
out_uint32_le(out, filestat.st_size); //End of file |
530 |
out_uint32_le(out, 0); |
531 |
out_uint32_le(out, filestat.st_nlink); //Number of links |
532 |
out_uint8(out, 0); //Delete pending |
533 |
out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); //Directory |
534 |
break; |
535 |
|
536 |
case FileObjectIdInformation: |
537 |
|
538 |
out_uint32_le(out, file_attributes); /* File Attributes */ |
539 |
out_uint32_le(out, 0); /* Reparse Tag */ |
540 |
break; |
541 |
|
542 |
default: |
543 |
|
544 |
unimpl("IRP Query (File) Information class: 0x%x\n", info_class); |
545 |
return STATUS_INVALID_PARAMETER; |
546 |
} |
547 |
return STATUS_SUCCESS; |
548 |
} |
549 |
|
550 |
NTSTATUS |
551 |
disk_set_information(NTHANDLE handle, uint32 info_class, STREAM in, STREAM out) |
552 |
{ |
553 |
uint32 length, file_attributes, ft_high, ft_low; |
554 |
char newname[256], fullpath[256]; |
555 |
struct fileinfo *pfinfo; |
556 |
|
557 |
int mode; |
558 |
struct stat filestat; |
559 |
time_t write_time, change_time, access_time, mod_time; |
560 |
struct utimbuf tvs; |
561 |
struct STATFS_T stat_fs; |
562 |
|
563 |
pfinfo = &(g_fileinfo[handle]); |
564 |
|
565 |
switch (info_class) |
566 |
{ |
567 |
case FileBasicInformation: |
568 |
write_time = change_time = access_time = 0; |
569 |
|
570 |
in_uint8s(in, 4); /* Handle of root dir? */ |
571 |
in_uint8s(in, 24); /* unknown */ |
572 |
|
573 |
// CreationTime |
574 |
in_uint32_le(in, ft_low); |
575 |
in_uint32_le(in, ft_high); |
576 |
|
577 |
// AccessTime |
578 |
in_uint32_le(in, ft_low); |
579 |
in_uint32_le(in, ft_high); |
580 |
if (ft_low || ft_high) |
581 |
access_time = convert_1970_to_filetime(ft_high, ft_low); |
582 |
|
583 |
// WriteTime |
584 |
in_uint32_le(in, ft_low); |
585 |
in_uint32_le(in, ft_high); |
586 |
if (ft_low || ft_high) |
587 |
write_time = convert_1970_to_filetime(ft_high, ft_low); |
588 |
|
589 |
// ChangeTime |
590 |
in_uint32_le(in, ft_low); |
591 |
in_uint32_le(in, ft_high); |
592 |
if (ft_low || ft_high) |
593 |
change_time = convert_1970_to_filetime(ft_high, ft_low); |
594 |
|
595 |
in_uint32_le(in, file_attributes); |
596 |
|
597 |
if (fstat(handle, &filestat)) |
598 |
return STATUS_ACCESS_DENIED; |
599 |
|
600 |
tvs.modtime = filestat.st_mtime; |
601 |
tvs.actime = filestat.st_atime; |
602 |
if (access_time) |
603 |
tvs.actime = access_time; |
604 |
|
605 |
|
606 |
if (write_time || change_time) |
607 |
mod_time = MIN(write_time, change_time); |
608 |
else |
609 |
mod_time = write_time ? write_time : change_time; |
610 |
|
611 |
if (mod_time) |
612 |
tvs.modtime = mod_time; |
613 |
|
614 |
|
615 |
if (access_time || write_time || change_time) |
616 |
{ |
617 |
#if WITH_DEBUG_RDP5 |
618 |
printf("FileBasicInformation access time %s", |
619 |
ctime(&tvs.actime)); |
620 |
printf("FileBasicInformation modification time %s", |
621 |
ctime(&tvs.modtime)); |
622 |
#endif |
623 |
if (utime(pfinfo->path, &tvs)) |
624 |
return STATUS_ACCESS_DENIED; |
625 |
} |
626 |
|
627 |
if (!file_attributes) |
628 |
break; // not valid |
629 |
|
630 |
mode = filestat.st_mode; |
631 |
|
632 |
if (file_attributes & FILE_ATTRIBUTE_READONLY) |
633 |
mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); |
634 |
else |
635 |
mode |= S_IWUSR; |
636 |
|
637 |
mode &= 0777; |
638 |
#if WITH_DEBUG_RDP5 |
639 |
printf("FileBasicInformation set access mode 0%o", mode); |
640 |
#endif |
641 |
|
642 |
if (fchmod(handle, mode)) |
643 |
return STATUS_ACCESS_DENIED; |
644 |
|
645 |
break; |
646 |
|
647 |
case FileRenameInformation: |
648 |
|
649 |
in_uint8s(in, 4); /* Handle of root dir? */ |
650 |
in_uint8s(in, 0x1a); /* unknown */ |
651 |
in_uint32_le(in, length); |
652 |
|
653 |
if (length && (length / 2) < 256) |
654 |
{ |
655 |
rdp_in_unistr(in, newname, length); |
656 |
convert_to_unix_filename(newname); |
657 |
} |
658 |
else |
659 |
{ |
660 |
return STATUS_INVALID_PARAMETER; |
661 |
} |
662 |
|
663 |
sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path, |
664 |
newname); |
665 |
|
666 |
if (rename(pfinfo->path, fullpath) != 0) |
667 |
{ |
668 |
perror("rename"); |
669 |
return STATUS_ACCESS_DENIED; |
670 |
} |
671 |
break; |
672 |
|
673 |
case FileDispositionInformation: |
674 |
/* As far as I understand it, the correct |
675 |
thing to do here is to *schedule* a delete, |
676 |
so it will be deleted when the file is |
677 |
closed. Subsequent |
678 |
FileDispositionInformation requests with |
679 |
DeleteFile set to FALSE should unschedule |
680 |
the delete. See |
681 |
http://www.osronline.com/article.cfm?article=245. Currently, |
682 |
we are deleting the file immediately. I |
683 |
guess this is a FIXME. */ |
684 |
|
685 |
//in_uint32_le(in, delete_on_close); |
686 |
|
687 |
/* Make sure we close the file before |
688 |
unlinking it. Not doing so would trigger |
689 |
silly-delete if using NFS, which might fail |
690 |
on FAT floppies, for example. */ |
691 |
disk_close(handle); |
692 |
|
693 |
if ((pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE)) // remove a directory |
694 |
{ |
695 |
if (rmdir(pfinfo->path) < 0) |
696 |
return STATUS_ACCESS_DENIED; |
697 |
} |
698 |
else if (unlink(pfinfo->path) < 0) // unlink a file |
699 |
return STATUS_ACCESS_DENIED; |
700 |
|
701 |
break; |
702 |
|
703 |
case FileAllocationInformation: |
704 |
/* Fall through to FileEndOfFileInformation, |
705 |
which uses ftrunc. This is like Samba with |
706 |
"strict allocation = false", and means that |
707 |
we won't detect out-of-quota errors, for |
708 |
example. */ |
709 |
|
710 |
case FileEndOfFileInformation: |
711 |
in_uint8s(in, 28); /* unknown */ |
712 |
in_uint32_le(in, length); /* file size */ |
713 |
|
714 |
/* prevents start of writing if not enough space left on device */ |
715 |
if (STATFS_FN(g_rdpdr_device[pfinfo->device_id].local_path, &stat_fs) == 0) |
716 |
if (stat_fs.f_bsize * stat_fs.f_bfree < length) |
717 |
return STATUS_DISK_FULL; |
718 |
|
719 |
if (ftruncate_growable(handle, length) != 0) |
720 |
{ |
721 |
return STATUS_DISK_FULL; |
722 |
} |
723 |
|
724 |
break; |
725 |
default: |
726 |
|
727 |
unimpl("IRP Set File Information class: 0x%x\n", info_class); |
728 |
return STATUS_INVALID_PARAMETER; |
729 |
} |
730 |
return STATUS_SUCCESS; |
731 |
} |
732 |
|
733 |
static FsInfoType * |
734 |
FsVolumeInfo(char *fpath) |
735 |
{ |
736 |
|
737 |
#ifdef HAVE_MNTENT_H |
738 |
FILE *fdfs; |
739 |
struct mntent *e; |
740 |
static FsInfoType info; |
741 |
|
742 |
/* initialize */ |
743 |
memset(&info, 0, sizeof(info)); |
744 |
strcpy(info.label, "RDESKTOP"); |
745 |
strcpy(info.type, "RDPFS"); |
746 |
|
747 |
fdfs = setmntent(MNTENT_PATH, "r"); |
748 |
if (!fdfs) |
749 |
return &info; |
750 |
|
751 |
while ((e = getmntent(fdfs))) |
752 |
{ |
753 |
if (strncmp(fpath, e->mnt_dir, strlen(fpath)) == 0) |
754 |
{ |
755 |
strcpy(info.type, e->mnt_type); |
756 |
strcpy(info.name, e->mnt_fsname); |
757 |
if (strstr(e->mnt_opts, "vfat") || strstr(e->mnt_opts, "iso9660")) |
758 |
{ |
759 |
int fd = open(e->mnt_fsname, O_RDONLY); |
760 |
if (fd >= 0) |
761 |
{ |
762 |
unsigned char buf[512]; |
763 |
memset(buf, 0, sizeof(buf)); |
764 |
if (strstr(e->mnt_opts, "vfat")) |
765 |
/*FAT*/ |
766 |
{ |
767 |
strcpy(info.type, "vfat"); |
768 |
read(fd, buf, sizeof(buf)); |
769 |
info.serial = |
770 |
(buf[42] << 24) + (buf[41] << 16) + |
771 |
(buf[40] << 8) + buf[39]; |
772 |
strncpy(info.label, buf + 43, 10); |
773 |
info.label[10] = '\0'; |
774 |
} |
775 |
else if (lseek(fd, 32767, SEEK_SET) >= 0) /* ISO9660 */ |
776 |
{ |
777 |
read(fd, buf, sizeof(buf)); |
778 |
strncpy(info.label, buf + 41, 32); |
779 |
info.label[32] = '\0'; |
780 |
//info.Serial = (buf[128]<<24)+(buf[127]<<16)+(buf[126]<<8)+buf[125]; |
781 |
} |
782 |
close(fd); |
783 |
} |
784 |
} |
785 |
} |
786 |
} |
787 |
endmntent(fdfs); |
788 |
#else |
789 |
static FsInfoType info; |
790 |
|
791 |
/* initialize */ |
792 |
memset(&info, 0, sizeof(info)); |
793 |
strcpy(info.label, "RDESKTOP"); |
794 |
strcpy(info.type, "RDPFS"); |
795 |
|
796 |
#endif |
797 |
return &info; |
798 |
} |
799 |
|
800 |
|
801 |
NTSTATUS |
802 |
disk_query_volume_information(NTHANDLE handle, uint32 info_class, STREAM out) |
803 |
{ |
804 |
struct STATFS_T stat_fs; |
805 |
struct fileinfo *pfinfo; |
806 |
FsInfoType *fsinfo; |
807 |
|
808 |
pfinfo = &(g_fileinfo[handle]); |
809 |
|
810 |
if (STATFS_FN(pfinfo->path, &stat_fs) != 0) |
811 |
{ |
812 |
perror("statfs"); |
813 |
return STATUS_ACCESS_DENIED; |
814 |
} |
815 |
|
816 |
fsinfo = FsVolumeInfo(pfinfo->path); |
817 |
|
818 |
switch (info_class) |
819 |
{ |
820 |
case FileFsVolumeInformation: |
821 |
|
822 |
out_uint32_le(out, 0); /* volume creation time low */ |
823 |
out_uint32_le(out, 0); /* volume creation time high */ |
824 |
out_uint32_le(out, fsinfo->serial); /* serial */ |
825 |
|
826 |
out_uint32_le(out, 2 * strlen(fsinfo->label)); /* length of string */ |
827 |
|
828 |
out_uint8(out, 0); /* support objects? */ |
829 |
rdp_out_unistr(out, fsinfo->label, 2 * strlen(fsinfo->label) - 2); |
830 |
break; |
831 |
|
832 |
case FileFsSizeInformation: |
833 |
|
834 |
out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */ |
835 |
out_uint32_le(out, 0); /* Total allocation high units */ |
836 |
out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */ |
837 |
out_uint32_le(out, 0); /* Available allowcation units */ |
838 |
out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */ |
839 |
out_uint32_le(out, 0x200); /* Bytes per sector */ |
840 |
break; |
841 |
|
842 |
case FileFsAttributeInformation: |
843 |
|
844 |
out_uint32_le(out, FS_CASE_SENSITIVE | FS_CASE_IS_PRESERVED); /* fs attributes */ |
845 |
out_uint32_le(out, F_NAMELEN(stat_fs)); /* max length of filename */ |
846 |
|
847 |
out_uint32_le(out, 2 * strlen(fsinfo->type)); /* length of fs_type */ |
848 |
rdp_out_unistr(out, fsinfo->type, 2 * strlen(fsinfo->type) - 2); |
849 |
break; |
850 |
|
851 |
case FileFsLabelInformation: |
852 |
case FileFsDeviceInformation: |
853 |
case FileFsControlInformation: |
854 |
case FileFsFullSizeInformation: |
855 |
case FileFsObjectIdInformation: |
856 |
case FileFsMaximumInformation: |
857 |
|
858 |
default: |
859 |
|
860 |
unimpl("IRP Query Volume Information class: 0x%x\n", info_class); |
861 |
return STATUS_INVALID_PARAMETER; |
862 |
} |
863 |
return STATUS_SUCCESS; |
864 |
} |
865 |
|
866 |
NTSTATUS |
867 |
disk_query_directory(NTHANDLE handle, uint32 info_class, char *pattern, STREAM out) |
868 |
{ |
869 |
uint32 file_attributes, ft_low, ft_high; |
870 |
char *dirname, fullpath[256]; |
871 |
DIR *pdir; |
872 |
struct dirent *pdirent; |
873 |
struct stat fstat; |
874 |
struct fileinfo *pfinfo; |
875 |
|
876 |
pfinfo = &(g_fileinfo[handle]); |
877 |
pdir = pfinfo->pdir; |
878 |
dirname = pfinfo->path; |
879 |
file_attributes = 0; |
880 |
|
881 |
switch (info_class) |
882 |
{ |
883 |
case FileBothDirectoryInformation: |
884 |
|
885 |
// If a search pattern is received, remember this pattern, and restart search |
886 |
if (pattern[0] != 0) |
887 |
{ |
888 |
strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64); |
889 |
rewinddir(pdir); |
890 |
} |
891 |
|
892 |
// find next dirent matching pattern |
893 |
pdirent = readdir(pdir); |
894 |
while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0) |
895 |
pdirent = readdir(pdir); |
896 |
|
897 |
if (pdirent == NULL) |
898 |
return STATUS_NO_MORE_FILES; |
899 |
|
900 |
// Get information for directory entry |
901 |
sprintf(fullpath, "%s/%s", dirname, pdirent->d_name); |
902 |
|
903 |
if (stat(fullpath, &fstat)) |
904 |
{ |
905 |
switch (errno) |
906 |
{ |
907 |
case ENOENT: |
908 |
case ELOOP: |
909 |
case EACCES: |
910 |
/* These are non-fatal errors. */ |
911 |
memset(&fstat, 0, sizeof(fstat)); |
912 |
break; |
913 |
default: |
914 |
/* Fatal error. By returning STATUS_NO_SUCH_FILE, |
915 |
the directory list operation will be aborted */ |
916 |
perror(fullpath); |
917 |
out_uint8(out, 0); |
918 |
return STATUS_NO_SUCH_FILE; |
919 |
} |
920 |
} |
921 |
|
922 |
if (S_ISDIR(fstat.st_mode)) |
923 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
924 |
if (pdirent->d_name[0] == '.') |
925 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
926 |
if (!file_attributes) |
927 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
928 |
if (!(fstat.st_mode & S_IWUSR)) |
929 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
930 |
|
931 |
// Return requested information |
932 |
out_uint8s(out, 8); //unknown zero |
933 |
|
934 |
seconds_since_1970_to_filetime(get_create_time(&fstat), &ft_high, &ft_low); |
935 |
out_uint32_le(out, ft_low); // create time |
936 |
out_uint32_le(out, ft_high); |
937 |
|
938 |
seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low); |
939 |
out_uint32_le(out, ft_low); //last_access_time |
940 |
out_uint32_le(out, ft_high); |
941 |
|
942 |
seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low); |
943 |
out_uint32_le(out, ft_low); //last_write_time |
944 |
out_uint32_le(out, ft_high); |
945 |
|
946 |
seconds_since_1970_to_filetime(fstat.st_ctime, &ft_high, &ft_low); |
947 |
out_uint32_le(out, ft_low); //change_write_time |
948 |
out_uint32_le(out, ft_high); |
949 |
|
950 |
out_uint32_le(out, fstat.st_size); //filesize low |
951 |
out_uint32_le(out, 0); //filesize high |
952 |
out_uint32_le(out, fstat.st_size); //filesize low |
953 |
out_uint32_le(out, 0); //filesize high |
954 |
out_uint32_le(out, file_attributes); |
955 |
out_uint8(out, 2 * strlen(pdirent->d_name) + 2); //unicode length |
956 |
out_uint8s(out, 7); //pad? |
957 |
out_uint8(out, 0); //8.3 file length |
958 |
out_uint8s(out, 2 * 12); //8.3 unicode length |
959 |
rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name)); |
960 |
break; |
961 |
|
962 |
default: |
963 |
/* FIXME: Support FileDirectoryInformation, |
964 |
FileFullDirectoryInformation, and |
965 |
FileNamesInformation */ |
966 |
|
967 |
unimpl("IRP Query Directory sub: 0x%x\n", info_class); |
968 |
return STATUS_INVALID_PARAMETER; |
969 |
} |
970 |
|
971 |
return STATUS_SUCCESS; |
972 |
} |
973 |
|
974 |
|
975 |
|
976 |
static NTSTATUS |
977 |
disk_device_control(NTHANDLE handle, uint32 request, STREAM in, STREAM out) |
978 |
{ |
979 |
if (((request >> 16) != 20) || ((request >> 16) != 9)) |
980 |
return STATUS_INVALID_PARAMETER; |
981 |
|
982 |
/* extract operation */ |
983 |
request >>= 2; |
984 |
request &= 0xfff; |
985 |
|
986 |
printf("DISK IOCTL %d\n", request); |
987 |
|
988 |
switch (request) |
989 |
{ |
990 |
case 25: // ? |
991 |
case 42: // ? |
992 |
default: |
993 |
unimpl("DISK IOCTL %d\n", request); |
994 |
return STATUS_INVALID_PARAMETER; |
995 |
} |
996 |
|
997 |
return STATUS_SUCCESS; |
998 |
} |
999 |
|
1000 |
DEVICE_FNS disk_fns = { |
1001 |
disk_create, |
1002 |
disk_close, |
1003 |
disk_read, |
1004 |
disk_write, |
1005 |
disk_device_control /* device_control */ |
1006 |
}; |