1 |
/* -*- c-basic-offset: 8 -*- |
2 |
rdesktop: A Remote Desktop Protocol client. |
3 |
Disk Redirection |
4 |
Copyright (C) Jeroen Meijer 2003 |
5 |
|
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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 |
9 |
(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 |
13 |
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 |
17 |
along with this program; if not, write to the Free Software |
18 |
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: Fix mntent-handling for solaris |
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* #include <sys/mntent.h> */ |
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#if (defined(HAVE_MNTENT_H) && defined(HAVE_SETMNTENT)) |
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#include <mntent.h> |
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#define MNTENT_PATH "/etc/mtab" |
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#define USE_SETMNTENT |
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#endif |
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|
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#ifdef HAVE_SYS_VFS_H |
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#include <sys/vfs.h> |
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#endif |
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|
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#ifdef HAVE_SYS_STATVFS_H |
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#include <sys/statvfs.h> |
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#endif |
55 |
|
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#ifdef HAVE_SYS_STATFS_H |
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#include <sys/statfs.h> |
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#endif |
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|
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#ifdef HAVE_SYS_PARAM_H |
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#include <sys/param.h> |
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#endif |
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|
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#ifdef HAVE_SYS_MOUNT_H |
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#include <sys/mount.h> |
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#endif |
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|
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#include "rdesktop.h" |
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|
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#ifdef STAT_STATFS3_OSF1 |
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#define STATFS_FN(path, buf) (statfs(path,buf,sizeof(buf))) |
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#define STATFS_T statfs |
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#define USE_STATFS |
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#endif |
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|
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#ifdef STAT_STATVFS |
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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 USE_STATVFS |
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#endif |
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|
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#ifdef STAT_STATVFS64 |
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#define STATFS_FN(path, buf) (statvfs64(path,buf)) |
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#define STATFS_T statvfs64 |
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#define USE_STATVFS |
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#endif |
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|
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#if (defined(STAT_STATFS2_FS_DATA) || defined(STAT_STATFS2_BSIZE) || defined(STAT_STATFS2_FSIZE)) |
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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 USE_STATFS |
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#endif |
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|
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#ifdef STAT_STATFS4 |
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#define STATFS_FN(path, buf) (statfs(path,buf,sizeof(buf),0)) |
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#define STATFS_T statfs |
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#define USE_STATFS |
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#endif |
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|
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#if ((defined(USE_STATFS) && defined(HAVE_STRUCT_STATFS_F_NAMEMAX)) || (defined(USE_STATVFS) && defined(HAVE_STRUCT_STATVFS_F_NAMEMAX))) |
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#define F_NAMELEN(buf) ((buf).f_namemax) |
102 |
#endif |
103 |
|
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#if ((defined(USE_STATFS) && defined(HAVE_STRUCT_STATFS_F_NAMELEN)) || (defined(USE_STATVFS) && defined(HAVE_STRUCT_STATVFS_F_NAMELEN))) |
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#define F_NAMELEN(buf) ((buf).f_namelen) |
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#endif |
107 |
|
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#ifndef F_NAMELEN |
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#define F_NAMELEN(buf) (255) |
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#endif |
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|
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/* Dummy statfs fallback */ |
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#ifndef STATFS_T |
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struct dummy_statfs_t |
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{ |
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long f_bfree = 1; |
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long f_bsize = 512; |
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long f_blocks = 1; |
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}; |
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#define STATFS_T dummy_statfs_t |
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#define STATFS_FN(path,buf) 0 |
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#endif |
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|
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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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BOOL g_notify_stamp = False; |
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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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static NTSTATUS NotifyInfo(NTHANDLE handle, uint32 info_class, NOTIFY * p); |
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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) |
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{ |
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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; |
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} |
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|
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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"); |
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return -1; |
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} |
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|
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/* Seek to new size */ |
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if (lseek(fd, length, SEEK_SET) == -1) |
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{ |
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perror("lseek"); |
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return -1; |
213 |
} |
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|
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/* Write a zero */ |
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if (write(fd, &zero, 1) == -1) |
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{ |
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perror("write"); |
219 |
return -1; |
220 |
} |
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|
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/* Truncate. This shouldn't fail. */ |
223 |
if (ftruncate(fd, length) == -1) |
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{ |
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perror("ftruncate"); |
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return -1; |
227 |
} |
228 |
|
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/* Restore position */ |
230 |
if (lseek(fd, pos, SEEK_SET) == -1) |
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{ |
232 |
perror("lseek"); |
233 |
return -1; |
234 |
} |
235 |
|
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return 0; |
237 |
} |
238 |
|
239 |
/* Just like open(2), but if a open with O_EXCL fails, retry with |
240 |
GUARDED semantics. This might be necessary because some filesystems |
241 |
(such as NFS filesystems mounted from a unfsd server) doesn't |
242 |
support O_EXCL. GUARDED semantics are subject to race conditions, |
243 |
but we can live with that. |
244 |
*/ |
245 |
static int |
246 |
open_weak_exclusive(const char *pathname, int flags, mode_t mode) |
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{ |
248 |
int ret; |
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struct stat statbuf; |
250 |
|
251 |
ret = open(pathname, flags, mode); |
252 |
if (ret != -1 || !(flags & O_EXCL)) |
253 |
{ |
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/* Success, or not using O_EXCL */ |
255 |
return ret; |
256 |
} |
257 |
|
258 |
/* An error occured, and we are using O_EXCL. In case the FS |
259 |
doesn't support O_EXCL, some kind of error will be |
260 |
returned. Unfortunately, we don't know which one. Linux |
261 |
2.6.8 seems to return 524, but I cannot find a documented |
262 |
#define for this case. So, we'll return only on errors that |
263 |
we know aren't related to O_EXCL. */ |
264 |
switch (errno) |
265 |
{ |
266 |
case EACCES: |
267 |
case EEXIST: |
268 |
case EINTR: |
269 |
case EISDIR: |
270 |
case ELOOP: |
271 |
case ENAMETOOLONG: |
272 |
case ENOENT: |
273 |
case ENOTDIR: |
274 |
return ret; |
275 |
} |
276 |
|
277 |
/* Retry with GUARDED semantics */ |
278 |
if (stat(pathname, &statbuf) != -1) |
279 |
{ |
280 |
/* File exists */ |
281 |
errno = EEXIST; |
282 |
return -1; |
283 |
} |
284 |
else |
285 |
{ |
286 |
return open(pathname, flags & ~O_EXCL, mode); |
287 |
} |
288 |
} |
289 |
|
290 |
/* Enumeration of devices from rdesktop.c */ |
291 |
/* returns numer of units found and initialized. */ |
292 |
/* optarg looks like ':h=/mnt/floppy,b=/mnt/usbdevice1' */ |
293 |
/* when it arrives to this function. */ |
294 |
int |
295 |
disk_enum_devices(uint32 * id, char *optarg) |
296 |
{ |
297 |
char *pos = optarg; |
298 |
char *pos2; |
299 |
int count = 0; |
300 |
|
301 |
/* skip the first colon */ |
302 |
optarg++; |
303 |
while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
304 |
{ |
305 |
pos2 = next_arg(optarg, '='); |
306 |
|
307 |
strncpy(g_rdpdr_device[*id].name, optarg, sizeof(g_rdpdr_device[*id].name) - 1); |
308 |
if (strlen(optarg) > (sizeof(g_rdpdr_device[*id].name) - 1)) |
309 |
fprintf(stderr, "share name %s truncated to %s\n", optarg, |
310 |
g_rdpdr_device[*id].name); |
311 |
|
312 |
g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
313 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
314 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK; |
315 |
count++; |
316 |
(*id)++; |
317 |
|
318 |
optarg = pos; |
319 |
} |
320 |
return count; |
321 |
} |
322 |
|
323 |
/* Opens or creates a file or directory */ |
324 |
static NTSTATUS |
325 |
disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition, |
326 |
uint32 flags_and_attributes, char *filename, NTHANDLE * phandle) |
327 |
{ |
328 |
NTHANDLE handle; |
329 |
DIR *dirp; |
330 |
int flags, mode; |
331 |
char path[256]; |
332 |
struct stat filestat; |
333 |
|
334 |
handle = 0; |
335 |
dirp = NULL; |
336 |
flags = 0; |
337 |
mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; |
338 |
|
339 |
if (*filename && filename[strlen(filename) - 1] == '/') |
340 |
filename[strlen(filename) - 1] = 0; |
341 |
sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename); |
342 |
|
343 |
switch (create_disposition) |
344 |
{ |
345 |
case CREATE_ALWAYS: |
346 |
|
347 |
/* Delete existing file/link. */ |
348 |
unlink(path); |
349 |
flags |= O_CREAT; |
350 |
break; |
351 |
|
352 |
case CREATE_NEW: |
353 |
|
354 |
/* If the file already exists, then fail. */ |
355 |
flags |= O_CREAT | O_EXCL; |
356 |
break; |
357 |
|
358 |
case OPEN_ALWAYS: |
359 |
|
360 |
/* Create if not already exists. */ |
361 |
flags |= O_CREAT; |
362 |
break; |
363 |
|
364 |
case OPEN_EXISTING: |
365 |
|
366 |
/* Default behaviour */ |
367 |
break; |
368 |
|
369 |
case TRUNCATE_EXISTING: |
370 |
|
371 |
/* If the file does not exist, then fail. */ |
372 |
flags |= O_TRUNC; |
373 |
break; |
374 |
} |
375 |
|
376 |
/*printf("Open: \"%s\" flags: %X, accessmask: %X sharemode: %X create disp: %X\n", path, flags_and_attributes, accessmask, sharemode, create_disposition); */ |
377 |
|
378 |
/* Get information about file and set that flag ourselfs */ |
379 |
if ((stat(path, &filestat) == 0) && (S_ISDIR(filestat.st_mode))) |
380 |
{ |
381 |
if (flags_and_attributes & FILE_NON_DIRECTORY_FILE) |
382 |
return STATUS_FILE_IS_A_DIRECTORY; |
383 |
else |
384 |
flags_and_attributes |= FILE_DIRECTORY_FILE; |
385 |
} |
386 |
|
387 |
if (flags_and_attributes & FILE_DIRECTORY_FILE) |
388 |
{ |
389 |
if (flags & O_CREAT) |
390 |
{ |
391 |
mkdir(path, mode); |
392 |
} |
393 |
|
394 |
dirp = opendir(path); |
395 |
if (!dirp) |
396 |
{ |
397 |
switch (errno) |
398 |
{ |
399 |
case EACCES: |
400 |
|
401 |
return STATUS_ACCESS_DENIED; |
402 |
|
403 |
case ENOENT: |
404 |
|
405 |
return STATUS_NO_SUCH_FILE; |
406 |
|
407 |
default: |
408 |
|
409 |
perror("opendir"); |
410 |
return STATUS_NO_SUCH_FILE; |
411 |
} |
412 |
} |
413 |
handle = DIRFD(dirp); |
414 |
} |
415 |
else |
416 |
{ |
417 |
|
418 |
if (accessmask & GENERIC_ALL |
419 |
|| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE)) |
420 |
{ |
421 |
flags |= O_RDWR; |
422 |
} |
423 |
else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ)) |
424 |
{ |
425 |
flags |= O_WRONLY; |
426 |
} |
427 |
else |
428 |
{ |
429 |
flags |= O_RDONLY; |
430 |
} |
431 |
|
432 |
handle = open_weak_exclusive(path, flags, mode); |
433 |
if (handle == -1) |
434 |
{ |
435 |
switch (errno) |
436 |
{ |
437 |
case EISDIR: |
438 |
|
439 |
return STATUS_FILE_IS_A_DIRECTORY; |
440 |
|
441 |
case EACCES: |
442 |
|
443 |
return STATUS_ACCESS_DENIED; |
444 |
|
445 |
case ENOENT: |
446 |
|
447 |
return STATUS_NO_SUCH_FILE; |
448 |
case EEXIST: |
449 |
|
450 |
return STATUS_OBJECT_NAME_COLLISION; |
451 |
default: |
452 |
|
453 |
perror("open"); |
454 |
return STATUS_NO_SUCH_FILE; |
455 |
} |
456 |
} |
457 |
|
458 |
/* all read and writes of files should be non blocking */ |
459 |
if (fcntl(handle, F_SETFL, O_NONBLOCK) == -1) |
460 |
perror("fcntl"); |
461 |
} |
462 |
|
463 |
if (handle >= MAX_OPEN_FILES) |
464 |
{ |
465 |
error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n", |
466 |
handle); |
467 |
exit(1); |
468 |
} |
469 |
|
470 |
if (dirp) |
471 |
g_fileinfo[handle].pdir = dirp; |
472 |
else |
473 |
g_fileinfo[handle].pdir = NULL; |
474 |
|
475 |
g_fileinfo[handle].device_id = device_id; |
476 |
g_fileinfo[handle].flags_and_attributes = flags_and_attributes; |
477 |
g_fileinfo[handle].accessmask = accessmask; |
478 |
strncpy(g_fileinfo[handle].path, path, 255); |
479 |
g_fileinfo[handle].delete_on_close = False; |
480 |
g_notify_stamp = True; |
481 |
|
482 |
*phandle = handle; |
483 |
return STATUS_SUCCESS; |
484 |
} |
485 |
|
486 |
static NTSTATUS |
487 |
disk_close(NTHANDLE handle) |
488 |
{ |
489 |
struct fileinfo *pfinfo; |
490 |
|
491 |
pfinfo = &(g_fileinfo[handle]); |
492 |
|
493 |
g_notify_stamp = True; |
494 |
|
495 |
rdpdr_abort_io(handle, 0, STATUS_CANCELLED); |
496 |
|
497 |
if (pfinfo->pdir) |
498 |
{ |
499 |
if (closedir(pfinfo->pdir) < 0) |
500 |
{ |
501 |
perror("closedir"); |
502 |
return STATUS_INVALID_HANDLE; |
503 |
} |
504 |
|
505 |
if (pfinfo->delete_on_close) |
506 |
if (rmdir(pfinfo->path) < 0) |
507 |
{ |
508 |
perror(pfinfo->path); |
509 |
return STATUS_ACCESS_DENIED; |
510 |
} |
511 |
pfinfo->delete_on_close = False; |
512 |
} |
513 |
else |
514 |
{ |
515 |
if (close(handle) < 0) |
516 |
{ |
517 |
perror("close"); |
518 |
return STATUS_INVALID_HANDLE; |
519 |
} |
520 |
if (pfinfo->delete_on_close) |
521 |
if (unlink(pfinfo->path) < 0) |
522 |
{ |
523 |
perror(pfinfo->path); |
524 |
return STATUS_ACCESS_DENIED; |
525 |
} |
526 |
|
527 |
pfinfo->delete_on_close = False; |
528 |
} |
529 |
|
530 |
return STATUS_SUCCESS; |
531 |
} |
532 |
|
533 |
static NTSTATUS |
534 |
disk_read(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
535 |
{ |
536 |
int n; |
537 |
|
538 |
#if 0 |
539 |
/* browsing dir ???? */ |
540 |
/* each request is 24 bytes */ |
541 |
if (g_fileinfo[handle].flags_and_attributes & FILE_DIRECTORY_FILE) |
542 |
{ |
543 |
*result = 0; |
544 |
return STATUS_SUCCESS; |
545 |
} |
546 |
#endif |
547 |
|
548 |
lseek(handle, offset, SEEK_SET); |
549 |
|
550 |
n = read(handle, data, length); |
551 |
|
552 |
if (n < 0) |
553 |
{ |
554 |
*result = 0; |
555 |
switch (errno) |
556 |
{ |
557 |
case EISDIR: |
558 |
/* Implement 24 Byte directory read ?? |
559 |
with STATUS_NOT_IMPLEMENTED server doesn't read again */ |
560 |
/* return STATUS_FILE_IS_A_DIRECTORY; */ |
561 |
return STATUS_NOT_IMPLEMENTED; |
562 |
default: |
563 |
perror("read"); |
564 |
return STATUS_INVALID_PARAMETER; |
565 |
} |
566 |
} |
567 |
|
568 |
*result = n; |
569 |
|
570 |
return STATUS_SUCCESS; |
571 |
} |
572 |
|
573 |
static NTSTATUS |
574 |
disk_write(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
575 |
{ |
576 |
int n; |
577 |
|
578 |
lseek(handle, offset, SEEK_SET); |
579 |
|
580 |
n = write(handle, data, length); |
581 |
|
582 |
if (n < 0) |
583 |
{ |
584 |
perror("write"); |
585 |
*result = 0; |
586 |
switch (errno) |
587 |
{ |
588 |
case ENOSPC: |
589 |
return STATUS_DISK_FULL; |
590 |
default: |
591 |
return STATUS_ACCESS_DENIED; |
592 |
} |
593 |
} |
594 |
|
595 |
*result = n; |
596 |
|
597 |
return STATUS_SUCCESS; |
598 |
} |
599 |
|
600 |
NTSTATUS |
601 |
disk_query_information(NTHANDLE handle, uint32 info_class, STREAM out) |
602 |
{ |
603 |
uint32 file_attributes, ft_high, ft_low; |
604 |
struct stat filestat; |
605 |
char *path, *filename; |
606 |
|
607 |
path = g_fileinfo[handle].path; |
608 |
|
609 |
/* Get information about file */ |
610 |
if (fstat(handle, &filestat) != 0) |
611 |
{ |
612 |
perror("stat"); |
613 |
out_uint8(out, 0); |
614 |
return STATUS_ACCESS_DENIED; |
615 |
} |
616 |
|
617 |
/* Set file attributes */ |
618 |
file_attributes = 0; |
619 |
if (S_ISDIR(filestat.st_mode)) |
620 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
621 |
|
622 |
filename = 1 + strrchr(path, '/'); |
623 |
if (filename && filename[0] == '.') |
624 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
625 |
|
626 |
if (!file_attributes) |
627 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
628 |
|
629 |
if (!(filestat.st_mode & S_IWUSR)) |
630 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
631 |
|
632 |
/* Return requested data */ |
633 |
switch (info_class) |
634 |
{ |
635 |
case FileBasicInformation: |
636 |
seconds_since_1970_to_filetime(get_create_time(&filestat), &ft_high, |
637 |
&ft_low); |
638 |
out_uint32_le(out, ft_low); /* create_access_time */ |
639 |
out_uint32_le(out, ft_high); |
640 |
|
641 |
seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low); |
642 |
out_uint32_le(out, ft_low); /* last_access_time */ |
643 |
out_uint32_le(out, ft_high); |
644 |
|
645 |
seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low); |
646 |
out_uint32_le(out, ft_low); /* last_write_time */ |
647 |
out_uint32_le(out, ft_high); |
648 |
|
649 |
seconds_since_1970_to_filetime(filestat.st_ctime, &ft_high, &ft_low); |
650 |
out_uint32_le(out, ft_low); /* last_change_time */ |
651 |
out_uint32_le(out, ft_high); |
652 |
|
653 |
out_uint32_le(out, file_attributes); |
654 |
break; |
655 |
|
656 |
case FileStandardInformation: |
657 |
|
658 |
out_uint32_le(out, filestat.st_size); /* Allocation size */ |
659 |
out_uint32_le(out, 0); |
660 |
out_uint32_le(out, filestat.st_size); /* End of file */ |
661 |
out_uint32_le(out, 0); |
662 |
out_uint32_le(out, filestat.st_nlink); /* Number of links */ |
663 |
out_uint8(out, 0); /* Delete pending */ |
664 |
out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); /* Directory */ |
665 |
break; |
666 |
|
667 |
case FileObjectIdInformation: |
668 |
|
669 |
out_uint32_le(out, file_attributes); /* File Attributes */ |
670 |
out_uint32_le(out, 0); /* Reparse Tag */ |
671 |
break; |
672 |
|
673 |
default: |
674 |
|
675 |
unimpl("IRP Query (File) Information class: 0x%x\n", info_class); |
676 |
return STATUS_INVALID_PARAMETER; |
677 |
} |
678 |
return STATUS_SUCCESS; |
679 |
} |
680 |
|
681 |
NTSTATUS |
682 |
disk_set_information(NTHANDLE handle, uint32 info_class, STREAM in, STREAM out) |
683 |
{ |
684 |
uint32 length, file_attributes, ft_high, ft_low, delete_on_close; |
685 |
char newname[256], fullpath[256]; |
686 |
struct fileinfo *pfinfo; |
687 |
int mode; |
688 |
struct stat filestat; |
689 |
time_t write_time, change_time, access_time, mod_time; |
690 |
struct utimbuf tvs; |
691 |
struct STATFS_T stat_fs; |
692 |
|
693 |
pfinfo = &(g_fileinfo[handle]); |
694 |
g_notify_stamp = True; |
695 |
|
696 |
switch (info_class) |
697 |
{ |
698 |
case FileBasicInformation: |
699 |
write_time = change_time = access_time = 0; |
700 |
|
701 |
in_uint8s(in, 4); /* Handle of root dir? */ |
702 |
in_uint8s(in, 24); /* unknown */ |
703 |
|
704 |
/* CreationTime */ |
705 |
in_uint32_le(in, ft_low); |
706 |
in_uint32_le(in, ft_high); |
707 |
|
708 |
/* AccessTime */ |
709 |
in_uint32_le(in, ft_low); |
710 |
in_uint32_le(in, ft_high); |
711 |
if (ft_low || ft_high) |
712 |
access_time = convert_1970_to_filetime(ft_high, ft_low); |
713 |
|
714 |
/* WriteTime */ |
715 |
in_uint32_le(in, ft_low); |
716 |
in_uint32_le(in, ft_high); |
717 |
if (ft_low || ft_high) |
718 |
write_time = convert_1970_to_filetime(ft_high, ft_low); |
719 |
|
720 |
/* ChangeTime */ |
721 |
in_uint32_le(in, ft_low); |
722 |
in_uint32_le(in, ft_high); |
723 |
if (ft_low || ft_high) |
724 |
change_time = convert_1970_to_filetime(ft_high, ft_low); |
725 |
|
726 |
in_uint32_le(in, file_attributes); |
727 |
|
728 |
if (fstat(handle, &filestat)) |
729 |
return STATUS_ACCESS_DENIED; |
730 |
|
731 |
tvs.modtime = filestat.st_mtime; |
732 |
tvs.actime = filestat.st_atime; |
733 |
if (access_time) |
734 |
tvs.actime = access_time; |
735 |
|
736 |
|
737 |
if (write_time || change_time) |
738 |
mod_time = MIN(write_time, change_time); |
739 |
else |
740 |
mod_time = write_time ? write_time : change_time; |
741 |
|
742 |
if (mod_time) |
743 |
tvs.modtime = mod_time; |
744 |
|
745 |
|
746 |
if (access_time || write_time || change_time) |
747 |
{ |
748 |
#if WITH_DEBUG_RDP5 |
749 |
printf("FileBasicInformation access time %s", |
750 |
ctime(&tvs.actime)); |
751 |
printf("FileBasicInformation modification time %s", |
752 |
ctime(&tvs.modtime)); |
753 |
#endif |
754 |
if (utime(pfinfo->path, &tvs) && errno != EPERM) |
755 |
return STATUS_ACCESS_DENIED; |
756 |
} |
757 |
|
758 |
if (!file_attributes) |
759 |
break; /* not valid */ |
760 |
|
761 |
mode = filestat.st_mode; |
762 |
|
763 |
if (file_attributes & FILE_ATTRIBUTE_READONLY) |
764 |
mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); |
765 |
else |
766 |
mode |= S_IWUSR; |
767 |
|
768 |
mode &= 0777; |
769 |
#if WITH_DEBUG_RDP5 |
770 |
printf("FileBasicInformation set access mode 0%o", mode); |
771 |
#endif |
772 |
|
773 |
if (fchmod(handle, mode)) |
774 |
return STATUS_ACCESS_DENIED; |
775 |
|
776 |
break; |
777 |
|
778 |
case FileRenameInformation: |
779 |
|
780 |
in_uint8s(in, 4); /* Handle of root dir? */ |
781 |
in_uint8s(in, 0x1a); /* unknown */ |
782 |
in_uint32_le(in, length); |
783 |
|
784 |
if (length && (length / 2) < 256) |
785 |
{ |
786 |
rdp_in_unistr(in, newname, length); |
787 |
convert_to_unix_filename(newname); |
788 |
} |
789 |
else |
790 |
{ |
791 |
return STATUS_INVALID_PARAMETER; |
792 |
} |
793 |
|
794 |
sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path, |
795 |
newname); |
796 |
|
797 |
if (rename(pfinfo->path, fullpath) != 0) |
798 |
{ |
799 |
perror("rename"); |
800 |
return STATUS_ACCESS_DENIED; |
801 |
} |
802 |
break; |
803 |
|
804 |
case FileDispositionInformation: |
805 |
/* As far as I understand it, the correct |
806 |
thing to do here is to *schedule* a delete, |
807 |
so it will be deleted when the file is |
808 |
closed. Subsequent |
809 |
FileDispositionInformation requests with |
810 |
DeleteFile set to FALSE should unschedule |
811 |
the delete. See |
812 |
http://www.osronline.com/article.cfm?article=245. */ |
813 |
|
814 |
in_uint32_le(in, delete_on_close); |
815 |
|
816 |
if (delete_on_close || |
817 |
(pfinfo-> |
818 |
accessmask & (FILE_DELETE_ON_CLOSE | FILE_COMPLETE_IF_OPLOCKED))) |
819 |
{ |
820 |
pfinfo->delete_on_close = True; |
821 |
} |
822 |
|
823 |
break; |
824 |
|
825 |
case FileAllocationInformation: |
826 |
/* Fall through to FileEndOfFileInformation, |
827 |
which uses ftrunc. This is like Samba with |
828 |
"strict allocation = false", and means that |
829 |
we won't detect out-of-quota errors, for |
830 |
example. */ |
831 |
|
832 |
case FileEndOfFileInformation: |
833 |
in_uint8s(in, 28); /* unknown */ |
834 |
in_uint32_le(in, length); /* file size */ |
835 |
|
836 |
/* prevents start of writing if not enough space left on device */ |
837 |
if (STATFS_FN(g_rdpdr_device[pfinfo->device_id].local_path, &stat_fs) == 0) |
838 |
if (stat_fs.f_bfree * stat_fs.f_bsize < length) |
839 |
return STATUS_DISK_FULL; |
840 |
|
841 |
if (ftruncate_growable(handle, length) != 0) |
842 |
{ |
843 |
return STATUS_DISK_FULL; |
844 |
} |
845 |
|
846 |
break; |
847 |
default: |
848 |
|
849 |
unimpl("IRP Set File Information class: 0x%x\n", info_class); |
850 |
return STATUS_INVALID_PARAMETER; |
851 |
} |
852 |
return STATUS_SUCCESS; |
853 |
} |
854 |
|
855 |
NTSTATUS |
856 |
disk_check_notify(NTHANDLE handle) |
857 |
{ |
858 |
struct fileinfo *pfinfo; |
859 |
NTSTATUS status = STATUS_PENDING; |
860 |
|
861 |
NOTIFY notify; |
862 |
|
863 |
pfinfo = &(g_fileinfo[handle]); |
864 |
if (!pfinfo->pdir) |
865 |
return STATUS_INVALID_DEVICE_REQUEST; |
866 |
|
867 |
|
868 |
|
869 |
status = NotifyInfo(handle, pfinfo->info_class, ¬ify); |
870 |
|
871 |
if (status != STATUS_PENDING) |
872 |
return status; |
873 |
|
874 |
if (memcmp(&pfinfo->notify, ¬ify, sizeof(NOTIFY))) |
875 |
{ |
876 |
/*printf("disk_check_notify found changed event\n"); */ |
877 |
memcpy(&pfinfo->notify, ¬ify, sizeof(NOTIFY)); |
878 |
status = STATUS_NOTIFY_ENUM_DIR; |
879 |
} |
880 |
|
881 |
return status; |
882 |
|
883 |
|
884 |
} |
885 |
|
886 |
NTSTATUS |
887 |
disk_create_notify(NTHANDLE handle, uint32 info_class) |
888 |
{ |
889 |
|
890 |
struct fileinfo *pfinfo; |
891 |
NTSTATUS ret = STATUS_PENDING; |
892 |
|
893 |
/* printf("start disk_create_notify info_class %X\n", info_class); */ |
894 |
|
895 |
pfinfo = &(g_fileinfo[handle]); |
896 |
pfinfo->info_class = info_class; |
897 |
|
898 |
ret = NotifyInfo(handle, info_class, &pfinfo->notify); |
899 |
|
900 |
if (info_class & 0x1000) |
901 |
{ /* ???? */ |
902 |
if (ret == STATUS_PENDING) |
903 |
return STATUS_SUCCESS; |
904 |
} |
905 |
|
906 |
/* printf("disk_create_notify: num_entries %d\n", pfinfo->notify.num_entries); */ |
907 |
|
908 |
|
909 |
return ret; |
910 |
|
911 |
} |
912 |
|
913 |
static NTSTATUS |
914 |
NotifyInfo(NTHANDLE handle, uint32 info_class, NOTIFY * p) |
915 |
{ |
916 |
struct fileinfo *pfinfo; |
917 |
struct stat buf; |
918 |
struct dirent *dp; |
919 |
char *fullname; |
920 |
DIR *dpr; |
921 |
|
922 |
pfinfo = &(g_fileinfo[handle]); |
923 |
if (fstat(handle, &buf) < 0) |
924 |
{ |
925 |
perror("NotifyInfo"); |
926 |
return STATUS_ACCESS_DENIED; |
927 |
} |
928 |
p->modify_time = buf.st_mtime; |
929 |
p->status_time = buf.st_ctime; |
930 |
p->num_entries = 0; |
931 |
p->total_time = 0; |
932 |
|
933 |
|
934 |
dpr = opendir(pfinfo->path); |
935 |
if (!dpr) |
936 |
{ |
937 |
perror("NotifyInfo"); |
938 |
return STATUS_ACCESS_DENIED; |
939 |
} |
940 |
|
941 |
|
942 |
while ((dp = readdir(dpr))) |
943 |
{ |
944 |
if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) |
945 |
continue; |
946 |
p->num_entries++; |
947 |
fullname = xmalloc(strlen(pfinfo->path) + strlen(dp->d_name) + 2); |
948 |
sprintf(fullname, "%s/%s", pfinfo->path, dp->d_name); |
949 |
|
950 |
if (!stat(fullname, &buf)) |
951 |
{ |
952 |
p->total_time += (buf.st_mtime + buf.st_ctime); |
953 |
} |
954 |
|
955 |
xfree(fullname); |
956 |
} |
957 |
closedir(dpr); |
958 |
|
959 |
return STATUS_PENDING; |
960 |
} |
961 |
|
962 |
static FsInfoType * |
963 |
FsVolumeInfo(char *fpath) |
964 |
{ |
965 |
|
966 |
static FsInfoType info; |
967 |
#ifdef USE_SETMNTENT |
968 |
FILE *fdfs; |
969 |
struct mntent *e; |
970 |
#endif |
971 |
|
972 |
/* initialize */ |
973 |
memset(&info, 0, sizeof(info)); |
974 |
strcpy(info.label, "RDESKTOP"); |
975 |
strcpy(info.type, "RDPFS"); |
976 |
|
977 |
#ifdef USE_SETMNTENT |
978 |
fdfs = setmntent(MNTENT_PATH, "r"); |
979 |
if (!fdfs) |
980 |
return &info; |
981 |
|
982 |
while ((e = getmntent(fdfs))) |
983 |
{ |
984 |
if (strncmp(fpath, e->mnt_dir, strlen(fpath)) == 0) |
985 |
{ |
986 |
strcpy(info.type, e->mnt_type); |
987 |
strcpy(info.name, e->mnt_fsname); |
988 |
if (strstr(e->mnt_opts, "vfat") || strstr(e->mnt_opts, "iso9660")) |
989 |
{ |
990 |
int fd = open(e->mnt_fsname, O_RDONLY); |
991 |
if (fd >= 0) |
992 |
{ |
993 |
unsigned char buf[512]; |
994 |
memset(buf, 0, sizeof(buf)); |
995 |
if (strstr(e->mnt_opts, "vfat")) |
996 |
/*FAT*/ |
997 |
{ |
998 |
strcpy(info.type, "vfat"); |
999 |
read(fd, buf, sizeof(buf)); |
1000 |
info.serial = |
1001 |
(buf[42] << 24) + (buf[41] << 16) + |
1002 |
(buf[40] << 8) + buf[39]; |
1003 |
strncpy(info.label, buf + 43, 10); |
1004 |
info.label[10] = '\0'; |
1005 |
} |
1006 |
else if (lseek(fd, 32767, SEEK_SET) >= 0) /* ISO9660 */ |
1007 |
{ |
1008 |
read(fd, buf, sizeof(buf)); |
1009 |
strncpy(info.label, buf + 41, 32); |
1010 |
info.label[32] = '\0'; |
1011 |
/* info.Serial = (buf[128]<<24)+(buf[127]<<16)+(buf[126]<<8)+buf[125]; */ |
1012 |
} |
1013 |
close(fd); |
1014 |
} |
1015 |
} |
1016 |
} |
1017 |
} |
1018 |
endmntent(fdfs); |
1019 |
#else |
1020 |
/* initialize */ |
1021 |
memset(&info, 0, sizeof(info)); |
1022 |
strcpy(info.label, "RDESKTOP"); |
1023 |
strcpy(info.type, "RDPFS"); |
1024 |
|
1025 |
#endif |
1026 |
return &info; |
1027 |
} |
1028 |
|
1029 |
|
1030 |
NTSTATUS |
1031 |
disk_query_volume_information(NTHANDLE handle, uint32 info_class, STREAM out) |
1032 |
{ |
1033 |
struct STATFS_T stat_fs; |
1034 |
struct fileinfo *pfinfo; |
1035 |
FsInfoType *fsinfo; |
1036 |
|
1037 |
pfinfo = &(g_fileinfo[handle]); |
1038 |
|
1039 |
if (STATFS_FN(pfinfo->path, &stat_fs) != 0) |
1040 |
{ |
1041 |
perror("statfs"); |
1042 |
return STATUS_ACCESS_DENIED; |
1043 |
} |
1044 |
|
1045 |
fsinfo = FsVolumeInfo(pfinfo->path); |
1046 |
|
1047 |
switch (info_class) |
1048 |
{ |
1049 |
case FileFsVolumeInformation: |
1050 |
|
1051 |
out_uint32_le(out, 0); /* volume creation time low */ |
1052 |
out_uint32_le(out, 0); /* volume creation time high */ |
1053 |
out_uint32_le(out, fsinfo->serial); /* serial */ |
1054 |
|
1055 |
out_uint32_le(out, 2 * strlen(fsinfo->label)); /* length of string */ |
1056 |
|
1057 |
out_uint8(out, 0); /* support objects? */ |
1058 |
rdp_out_unistr(out, fsinfo->label, 2 * strlen(fsinfo->label) - 2); |
1059 |
break; |
1060 |
|
1061 |
case FileFsSizeInformation: |
1062 |
|
1063 |
out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */ |
1064 |
out_uint32_le(out, 0); /* Total allocation high units */ |
1065 |
out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */ |
1066 |
out_uint32_le(out, 0); /* Available allowcation units */ |
1067 |
out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */ |
1068 |
out_uint32_le(out, 0x200); /* Bytes per sector */ |
1069 |
break; |
1070 |
|
1071 |
case FileFsAttributeInformation: |
1072 |
|
1073 |
out_uint32_le(out, FS_CASE_SENSITIVE | FS_CASE_IS_PRESERVED); /* fs attributes */ |
1074 |
out_uint32_le(out, F_NAMELEN(stat_fs)); /* max length of filename */ |
1075 |
|
1076 |
out_uint32_le(out, 2 * strlen(fsinfo->type)); /* length of fs_type */ |
1077 |
rdp_out_unistr(out, fsinfo->type, 2 * strlen(fsinfo->type) - 2); |
1078 |
break; |
1079 |
|
1080 |
case FileFsLabelInformation: |
1081 |
case FileFsDeviceInformation: |
1082 |
case FileFsControlInformation: |
1083 |
case FileFsFullSizeInformation: |
1084 |
case FileFsObjectIdInformation: |
1085 |
case FileFsMaximumInformation: |
1086 |
|
1087 |
default: |
1088 |
|
1089 |
unimpl("IRP Query Volume Information class: 0x%x\n", info_class); |
1090 |
return STATUS_INVALID_PARAMETER; |
1091 |
} |
1092 |
return STATUS_SUCCESS; |
1093 |
} |
1094 |
|
1095 |
NTSTATUS |
1096 |
disk_query_directory(NTHANDLE handle, uint32 info_class, char *pattern, STREAM out) |
1097 |
{ |
1098 |
uint32 file_attributes, ft_low, ft_high; |
1099 |
char *dirname, fullpath[256]; |
1100 |
DIR *pdir; |
1101 |
struct dirent *pdirent; |
1102 |
struct stat fstat; |
1103 |
struct fileinfo *pfinfo; |
1104 |
|
1105 |
pfinfo = &(g_fileinfo[handle]); |
1106 |
pdir = pfinfo->pdir; |
1107 |
dirname = pfinfo->path; |
1108 |
file_attributes = 0; |
1109 |
|
1110 |
switch (info_class) |
1111 |
{ |
1112 |
case FileBothDirectoryInformation: |
1113 |
|
1114 |
/* If a search pattern is received, remember this pattern, and restart search */ |
1115 |
if (pattern[0] != 0) |
1116 |
{ |
1117 |
strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64); |
1118 |
rewinddir(pdir); |
1119 |
} |
1120 |
|
1121 |
/* find next dirent matching pattern */ |
1122 |
pdirent = readdir(pdir); |
1123 |
while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0) |
1124 |
pdirent = readdir(pdir); |
1125 |
|
1126 |
if (pdirent == NULL) |
1127 |
return STATUS_NO_MORE_FILES; |
1128 |
|
1129 |
/* Get information for directory entry */ |
1130 |
sprintf(fullpath, "%s/%s", dirname, pdirent->d_name); |
1131 |
|
1132 |
if (stat(fullpath, &fstat)) |
1133 |
{ |
1134 |
switch (errno) |
1135 |
{ |
1136 |
case ENOENT: |
1137 |
case ELOOP: |
1138 |
case EACCES: |
1139 |
/* These are non-fatal errors. */ |
1140 |
memset(&fstat, 0, sizeof(fstat)); |
1141 |
break; |
1142 |
default: |
1143 |
/* Fatal error. By returning STATUS_NO_SUCH_FILE, |
1144 |
the directory list operation will be aborted */ |
1145 |
perror(fullpath); |
1146 |
out_uint8(out, 0); |
1147 |
return STATUS_NO_SUCH_FILE; |
1148 |
} |
1149 |
} |
1150 |
|
1151 |
if (S_ISDIR(fstat.st_mode)) |
1152 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
1153 |
if (pdirent->d_name[0] == '.') |
1154 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
1155 |
if (!file_attributes) |
1156 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
1157 |
if (!(fstat.st_mode & S_IWUSR)) |
1158 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
1159 |
|
1160 |
/* Return requested information */ |
1161 |
out_uint8s(out, 8); /* unknown zero */ |
1162 |
|
1163 |
seconds_since_1970_to_filetime(get_create_time(&fstat), &ft_high, &ft_low); |
1164 |
out_uint32_le(out, ft_low); /* create time */ |
1165 |
out_uint32_le(out, ft_high); |
1166 |
|
1167 |
seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low); |
1168 |
out_uint32_le(out, ft_low); /* last_access_time */ |
1169 |
out_uint32_le(out, ft_high); |
1170 |
|
1171 |
seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low); |
1172 |
out_uint32_le(out, ft_low); /* last_write_time */ |
1173 |
out_uint32_le(out, ft_high); |
1174 |
|
1175 |
seconds_since_1970_to_filetime(fstat.st_ctime, &ft_high, &ft_low); |
1176 |
out_uint32_le(out, ft_low); /* change_write_time */ |
1177 |
out_uint32_le(out, ft_high); |
1178 |
|
1179 |
out_uint32_le(out, fstat.st_size); /* filesize low */ |
1180 |
out_uint32_le(out, 0); /* filesize high */ |
1181 |
out_uint32_le(out, fstat.st_size); /* filesize low */ |
1182 |
out_uint32_le(out, 0); /* filesize high */ |
1183 |
out_uint32_le(out, file_attributes); |
1184 |
out_uint8(out, 2 * strlen(pdirent->d_name) + 2); /* unicode length */ |
1185 |
out_uint8s(out, 7); /* pad? */ |
1186 |
out_uint8(out, 0); /* 8.3 file length */ |
1187 |
out_uint8s(out, 2 * 12); /* 8.3 unicode length */ |
1188 |
rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name)); |
1189 |
break; |
1190 |
|
1191 |
default: |
1192 |
/* FIXME: Support FileDirectoryInformation, |
1193 |
FileFullDirectoryInformation, and |
1194 |
FileNamesInformation */ |
1195 |
|
1196 |
unimpl("IRP Query Directory sub: 0x%x\n", info_class); |
1197 |
return STATUS_INVALID_PARAMETER; |
1198 |
} |
1199 |
|
1200 |
return STATUS_SUCCESS; |
1201 |
} |
1202 |
|
1203 |
|
1204 |
|
1205 |
static NTSTATUS |
1206 |
disk_device_control(NTHANDLE handle, uint32 request, STREAM in, STREAM out) |
1207 |
{ |
1208 |
if (((request >> 16) != 20) || ((request >> 16) != 9)) |
1209 |
return STATUS_INVALID_PARAMETER; |
1210 |
|
1211 |
/* extract operation */ |
1212 |
request >>= 2; |
1213 |
request &= 0xfff; |
1214 |
|
1215 |
printf("DISK IOCTL %d\n", request); |
1216 |
|
1217 |
switch (request) |
1218 |
{ |
1219 |
case 25: /* ? */ |
1220 |
case 42: /* ? */ |
1221 |
default: |
1222 |
unimpl("DISK IOCTL %d\n", request); |
1223 |
return STATUS_INVALID_PARAMETER; |
1224 |
} |
1225 |
|
1226 |
return STATUS_SUCCESS; |
1227 |
} |
1228 |
|
1229 |
DEVICE_FNS disk_fns = { |
1230 |
disk_create, |
1231 |
disk_close, |
1232 |
disk_read, |
1233 |
disk_write, |
1234 |
disk_device_control /* device_control */ |
1235 |
}; |