/* * NTDLL directory functions * * Copyright 1993 Erik Bos * Copyright 2003 Eric Pouech * Copyright 1996, 2004 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include #include #ifdef HAVE_DIRENT_H # include #endif #include #include #include #include #include #include #include #ifdef HAVE_MNTENT_H #include #endif #ifdef HAVE_SYS_STAT_H # include #endif #ifdef HAVE_SYS_SYSCALL_H # include #endif #ifdef HAVE_SYS_ATTR_H #include #endif #ifdef MAJOR_IN_MKDEV # include #elif defined(MAJOR_IN_SYSMACROS) # include #endif #ifdef HAVE_SYS_VNODE_H # ifdef HAVE_STDINT_H # include /* needed for kfreebsd */ # endif /* Work around a conflict with Solaris' system list defined in sys/list.h. */ #define list SYSLIST #define list_next SYSLIST_NEXT #define list_prev SYSLIST_PREV #define list_head SYSLIST_HEAD #define list_tail SYSLIST_TAIL #define list_move_tail SYSLIST_MOVE_TAIL #define list_remove SYSLIST_REMOVE #include #undef list #undef list_next #undef list_prev #undef list_head #undef list_tail #undef list_move_tail #undef list_remove #endif #ifdef HAVE_SYS_IOCTL_H #include #endif #ifdef HAVE_LINUX_IOCTL_H #include #endif #ifdef HAVE_LINUX_MAJOR_H # include #endif #ifdef HAVE_SYS_PARAM_H #include #endif #ifdef HAVE_SYS_MOUNT_H #include #endif #ifdef HAVE_SYS_STATFS_H #include #endif #include #ifdef HAVE_UNISTD_H # include #endif #include "ntstatus.h" #define WIN32_NO_STATUS #define NONAMELESSUNION #include "windef.h" #include "winnt.h" #include "winternl.h" #include "ddk/wdm.h" #include "ntdll_misc.h" #include "wine/server.h" #include "wine/list.h" #include "wine/debug.h" #include "wine/exception.h" WINE_DEFAULT_DEBUG_CHANNEL(file); /* just in case... */ #undef VFAT_IOCTL_READDIR_BOTH #undef EXT2_IOC_GETFLAGS #undef EXT4_CASEFOLD_FL #ifdef linux /* We want the real kernel dirent structure, not the libc one */ typedef struct { long d_ino; long d_off; unsigned short d_reclen; char d_name[256]; } KERNEL_DIRENT; /* Define the VFAT ioctl to get both short and long file names */ #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] ) /* Define the ext2 ioctl for handling extra attributes */ #define EXT2_IOC_GETFLAGS _IOR('f', 1, long) /* Case-insensitivity attribute */ #define EXT4_CASEFOLD_FL 0x40000000 #ifndef O_DIRECTORY # define O_DIRECTORY 0200000 /* must be directory */ #endif #ifndef AT_NO_AUTOMOUNT #define AT_NO_AUTOMOUNT 0x800 #endif #endif /* linux */ #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1') #define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/') #define INVALID_NT_CHARS '*','?','<','>','|','"' #define INVALID_DOS_CHARS INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345' #define MAX_DIR_ENTRY_LEN 255 /* max length of a directory entry in chars */ #define MAX_IGNORED_FILES 4 struct file_identity { dev_t dev; ino_t ino; }; static struct file_identity ignored_files[MAX_IGNORED_FILES]; static unsigned int ignored_files_count; union file_directory_info { ULONG next; FILE_DIRECTORY_INFORMATION dir; FILE_BOTH_DIRECTORY_INFORMATION both; FILE_FULL_DIRECTORY_INFORMATION full; FILE_ID_BOTH_DIRECTORY_INFORMATION id_both; FILE_ID_FULL_DIRECTORY_INFORMATION id_full; FILE_ID_GLOBAL_TX_DIR_INFORMATION id_tx; FILE_NAMES_INFORMATION names; }; struct dir_data_buffer { struct dir_data_buffer *next; /* next buffer in the list */ unsigned int size; /* total size of the buffer */ unsigned int pos; /* current position in the buffer */ char data[1]; }; struct dir_data_names { const WCHAR *long_name; /* long file name in Unicode */ const WCHAR *short_name; /* short file name in Unicode */ const char *unix_name; /* Unix file name in host encoding */ }; struct dir_data { unsigned int size; /* size of the names array */ unsigned int count; /* count of used entries in the names array */ unsigned int pos; /* current reading position in the names array */ struct file_identity id; /* directory file identity */ struct dir_data_names *names; /* directory file names */ struct dir_data_buffer *buffer; /* head of data buffers list */ }; static const unsigned int dir_data_buffer_initial_size = 4096; static const unsigned int dir_data_cache_initial_size = 256; static const unsigned int dir_data_names_initial_size = 64; static struct dir_data **dir_data_cache; static unsigned int dir_data_cache_size; static BOOL show_dot_files; static RTL_RUN_ONCE init_once = RTL_RUN_ONCE_INIT; /* at some point we may want to allow Winelib apps to set this */ static const BOOL is_case_sensitive = FALSE; static struct file_identity windir; static RTL_CRITICAL_SECTION dir_section; static RTL_CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &dir_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": dir_section") } }; static RTL_CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 }; /* check if a given Unicode char is OK in a DOS short name */ static inline BOOL is_invalid_dos_char( WCHAR ch ) { static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 }; if (ch > 0x7f) return TRUE; return wcschr( invalid_chars, ch ) != NULL; } /* check if the device can be a mounted volume */ static inline BOOL is_valid_mounted_device( const struct stat *st ) { #if defined(linux) || defined(__sun__) return S_ISBLK( st->st_mode ); #else /* disks are char devices on *BSD */ return S_ISCHR( st->st_mode ); #endif } static inline void ignore_file( const char *name ) { struct stat st; assert( ignored_files_count < MAX_IGNORED_FILES ); if (!stat( name, &st )) { ignored_files[ignored_files_count].dev = st.st_dev; ignored_files[ignored_files_count].ino = st.st_ino; ignored_files_count++; } } static inline BOOL is_same_file( const struct file_identity *file, const struct stat *st ) { return st->st_dev == file->dev && st->st_ino == file->ino; } static inline BOOL is_ignored_file( const struct stat *st ) { unsigned int i; for (i = 0; i < ignored_files_count; i++) if (is_same_file( &ignored_files[i], st )) return TRUE; return FALSE; } static inline unsigned int dir_info_align( unsigned int len ) { return (len + 7) & ~7; } static inline unsigned int dir_info_size( FILE_INFORMATION_CLASS class, unsigned int len ) { switch (class) { case FileDirectoryInformation: return offsetof( FILE_DIRECTORY_INFORMATION, FileName[len] ); case FileBothDirectoryInformation: return offsetof( FILE_BOTH_DIRECTORY_INFORMATION, FileName[len] ); case FileFullDirectoryInformation: return offsetof( FILE_FULL_DIRECTORY_INFORMATION, FileName[len] ); case FileIdBothDirectoryInformation: return offsetof( FILE_ID_BOTH_DIRECTORY_INFORMATION, FileName[len] ); case FileIdFullDirectoryInformation: return offsetof( FILE_ID_FULL_DIRECTORY_INFORMATION, FileName[len] ); case FileIdGlobalTxDirectoryInformation: return offsetof( FILE_ID_GLOBAL_TX_DIR_INFORMATION, FileName[len] ); case FileNamesInformation: return offsetof( FILE_NAMES_INFORMATION, FileName[len] ); default: assert(0); return 0; } } static inline BOOL has_wildcard( const UNICODE_STRING *mask ) { int i; if (!mask) return TRUE; for (i = 0; i < mask->Length / sizeof(WCHAR); i++) if (mask->Buffer[i] == '*' || mask->Buffer[i] == '?') return TRUE; return FALSE; } /* get space from the current directory data buffer, allocating a new one if necessary */ static void *get_dir_data_space( struct dir_data *data, unsigned int size ) { struct dir_data_buffer *buffer = data->buffer; void *ret; if (!buffer || size > buffer->size - buffer->pos) { unsigned int new_size = buffer ? buffer->size * 2 : dir_data_buffer_initial_size; if (new_size < size) new_size = size; if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, offsetof( struct dir_data_buffer, data[new_size] ) ))) return NULL; buffer->pos = 0; buffer->size = new_size; buffer->next = data->buffer; data->buffer = buffer; } ret = buffer->data + buffer->pos; buffer->pos += size; return ret; } /* add a string to the directory data buffer */ static const char *add_dir_data_nameA( struct dir_data *data, const char *name ) { /* keep buffer data WCHAR-aligned */ char *ptr = get_dir_data_space( data, (strlen( name ) + sizeof(WCHAR)) & ~(sizeof(WCHAR) - 1) ); if (ptr) strcpy( ptr, name ); return ptr; } /* add a Unicode string to the directory data buffer */ static const WCHAR *add_dir_data_nameW( struct dir_data *data, const WCHAR *name ) { WCHAR *ptr = get_dir_data_space( data, (wcslen( name ) + 1) * sizeof(WCHAR) ); if (ptr) wcscpy( ptr, name ); return ptr; } /* add an entry to the directory names array */ static BOOL add_dir_data_names( struct dir_data *data, const WCHAR *long_name, const WCHAR *short_name, const char *unix_name ) { static const WCHAR empty[1]; struct dir_data_names *names = data->names; if (data->count >= data->size) { unsigned int new_size = max( data->size * 2, dir_data_names_initial_size ); if (names) names = RtlReAllocateHeap( GetProcessHeap(), 0, names, new_size * sizeof(*names) ); else names = RtlAllocateHeap( GetProcessHeap(), 0, new_size * sizeof(*names) ); if (!names) return FALSE; data->size = new_size; data->names = names; } if (short_name[0]) { if (!(names[data->count].short_name = add_dir_data_nameW( data, short_name ))) return FALSE; } else names[data->count].short_name = empty; if (!(names[data->count].long_name = add_dir_data_nameW( data, long_name ))) return FALSE; if (!(names[data->count].unix_name = add_dir_data_nameA( data, unix_name ))) return FALSE; data->count++; return TRUE; } /* free the complete directory data structure */ static void free_dir_data( struct dir_data *data ) { struct dir_data_buffer *buffer, *next; if (!data) return; for (buffer = data->buffer; buffer; buffer = next) { next = buffer->next; RtlFreeHeap( GetProcessHeap(), 0, buffer ); } RtlFreeHeap( GetProcessHeap(), 0, data->names ); RtlFreeHeap( GetProcessHeap(), 0, data ); } /* support for a directory queue for filesystem searches */ struct dir_name { struct list entry; char name[1]; }; static struct list dir_queue = LIST_INIT( dir_queue ); static NTSTATUS add_dir_to_queue( const char *name ) { int len = strlen( name ) + 1; struct dir_name *dir = RtlAllocateHeap( GetProcessHeap(), 0, FIELD_OFFSET( struct dir_name, name[len] )); if (!dir) return STATUS_NO_MEMORY; strcpy( dir->name, name ); list_add_tail( &dir_queue, &dir->entry ); return STATUS_SUCCESS; } static NTSTATUS next_dir_in_queue( char *name ) { struct list *head = list_head( &dir_queue ); if (head) { struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry ); strcpy( name, dir->name ); list_remove( &dir->entry ); RtlFreeHeap( GetProcessHeap(), 0, dir ); return STATUS_SUCCESS; } return STATUS_OBJECT_NAME_NOT_FOUND; } static void flush_dir_queue(void) { struct list *head; while ((head = list_head( &dir_queue ))) { struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry ); list_remove( &dir->entry ); RtlFreeHeap( GetProcessHeap(), 0, dir ); } } #ifdef __ANDROID__ static char *unescape_field( char *str ) { char *in, *out; for (in = out = str; *in; in++, out++) { *out = *in; if (in[0] == '\\') { if (in[1] == '\\') { out[0] = '\\'; in++; } else if (in[1] == '0' && in[2] == '4' && in[3] == '0') { out[0] = ' '; in += 3; } else if (in[1] == '0' && in[2] == '1' && in[3] == '1') { out[0] = '\t'; in += 3; } else if (in[1] == '0' && in[2] == '1' && in[3] == '2') { out[0] = '\n'; in += 3; } else if (in[1] == '1' && in[2] == '3' && in[3] == '4') { out[0] = '\\'; in += 3; } } } *out = '\0'; return str; } static inline char *get_field( char **str ) { char *ret; ret = strsep( str, " \t" ); if (*str) *str += strspn( *str, " \t" ); return ret; } /************************************************************************ * getmntent_replacement * * getmntent replacement for Android. * * NB returned static buffer is not thread safe; protect with dir_section. */ static struct mntent *getmntent_replacement( FILE *f ) { static struct mntent entry; static char buf[4096]; char *p, *start; do { if (!fgets( buf, sizeof(buf), f )) return NULL; p = strchr( buf, '\n' ); if (p) *p = '\0'; else /* Partially unread line, move file ptr to end */ { char tmp[1024]; while (fgets( tmp, sizeof(tmp), f )) if (strchr( tmp, '\n' )) break; } start = buf + strspn( buf, " \t" ); } while (start[0] == '\0' || start[0] == '#'); p = get_field( &start ); entry.mnt_fsname = p ? unescape_field( p ) : (char *)""; p = get_field( &start ); entry.mnt_dir = p ? unescape_field( p ) : (char *)""; p = get_field( &start ); entry.mnt_type = p ? unescape_field( p ) : (char *)""; p = get_field( &start ); entry.mnt_opts = p ? unescape_field( p ) : (char *)""; p = get_field( &start ); entry.mnt_freq = p ? atoi(p) : 0; p = get_field( &start ); entry.mnt_passno = p ? atoi(p) : 0; return &entry; } #define getmntent getmntent_replacement #endif /*********************************************************************** * DIR_get_drives_info * * Retrieve device/inode number for all the drives. Helper for find_drive_root. */ unsigned int DIR_get_drives_info( struct drive_info info[MAX_DOS_DRIVES] ) { static struct drive_info cache[MAX_DOS_DRIVES]; static time_t last_update; static unsigned int nb_drives; unsigned int ret; time_t now = time(NULL); RtlEnterCriticalSection( &dir_section ); if (now != last_update) { char *buffer, *p; struct stat st; unsigned int i; if ((buffer = RtlAllocateHeap( GetProcessHeap(), 0, strlen(config_dir) + sizeof("/dosdevices/a:") ))) { strcpy( buffer, config_dir ); strcat( buffer, "/dosdevices/a:" ); p = buffer + strlen(buffer) - 2; for (i = nb_drives = 0; i < MAX_DOS_DRIVES; i++) { *p = 'a' + i; if (!stat( buffer, &st )) { cache[i].dev = st.st_dev; cache[i].ino = st.st_ino; nb_drives++; } else { cache[i].dev = 0; cache[i].ino = 0; } } RtlFreeHeap( GetProcessHeap(), 0, buffer ); } last_update = now; } memcpy( info, cache, sizeof(cache) ); ret = nb_drives; RtlLeaveCriticalSection( &dir_section ); return ret; } /*********************************************************************** * parse_mount_entries * * Parse mount entries looking for a given device. Helper for get_default_drive_device. */ #ifdef sun #include static char *parse_vfstab_entries( FILE *f, dev_t dev, ino_t ino) { struct vfstab entry; struct stat st; char *device; while (! getvfsent( f, &entry )) { /* don't even bother stat'ing network mounts, there's no meaningful device anyway */ if (!strcmp( entry.vfs_fstype, "nfs" ) || !strcmp( entry.vfs_fstype, "smbfs" ) || !strcmp( entry.vfs_fstype, "ncpfs" )) continue; if (stat( entry.vfs_mountp, &st ) == -1) continue; if (st.st_dev != dev || st.st_ino != ino) continue; if (!strcmp( entry.vfs_fstype, "fd" )) { if ((device = strstr( entry.vfs_mntopts, "dev=" ))) { char *p = strchr( device + 4, ',' ); if (p) *p = 0; return device + 4; } } else return entry.vfs_special; } return NULL; } #endif #ifdef linux static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino ) { struct mntent *entry; struct stat st; char *device; while ((entry = getmntent( f ))) { /* don't even bother stat'ing network mounts, there's no meaningful device anyway */ if (!strcmp( entry->mnt_type, "nfs" ) || !strcmp( entry->mnt_type, "cifs" ) || !strcmp( entry->mnt_type, "smbfs" ) || !strcmp( entry->mnt_type, "ncpfs" )) continue; if (stat( entry->mnt_dir, &st ) == -1) continue; if (st.st_dev != dev || st.st_ino != ino) continue; if (!strcmp( entry->mnt_type, "supermount" )) { if ((device = strstr( entry->mnt_opts, "dev=" ))) { char *p = strchr( device + 4, ',' ); if (p) *p = 0; return device + 4; } } else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode)) { /* if device is a regular file check for a loop mount */ if ((device = strstr( entry->mnt_opts, "loop=" ))) { char *p = strchr( device + 5, ',' ); if (p) *p = 0; return device + 5; } } else return entry->mnt_fsname; } return NULL; } #endif #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) #include static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino ) { struct fstab *entry; struct stat st; while ((entry = getfsent())) { /* don't even bother stat'ing network mounts, there's no meaningful device anyway */ if (!strcmp( entry->fs_vfstype, "nfs" ) || !strcmp( entry->fs_vfstype, "smbfs" ) || !strcmp( entry->fs_vfstype, "ncpfs" )) continue; if (stat( entry->fs_file, &st ) == -1) continue; if (st.st_dev != dev || st.st_ino != ino) continue; return entry->fs_spec; } return NULL; } #endif #ifdef sun #include static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino ) { struct mnttab entry; struct stat st; char *device; while (( ! getmntent( f, &entry) )) { /* don't even bother stat'ing network mounts, there's no meaningful device anyway */ if (!strcmp( entry.mnt_fstype, "nfs" ) || !strcmp( entry.mnt_fstype, "smbfs" ) || !strcmp( entry.mnt_fstype, "ncpfs" )) continue; if (stat( entry.mnt_mountp, &st ) == -1) continue; if (st.st_dev != dev || st.st_ino != ino) continue; if (!strcmp( entry.mnt_fstype, "fd" )) { if ((device = strstr( entry.mnt_mntopts, "dev=" ))) { char *p = strchr( device + 4, ',' ); if (p) *p = 0; return device + 4; } } else return entry.mnt_special; } return NULL; } #endif /*********************************************************************** * get_default_drive_device * * Return the default device to use for a given drive mount point. */ static char *get_default_drive_device( const char *root ) { char *ret = NULL; #ifdef linux FILE *f; char *device = NULL; int fd, res = -1; struct stat st; /* try to open it first to force it to get mounted */ if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1) { res = fstat( fd, &st ); close( fd ); } /* now try normal stat just in case */ if (res == -1) res = stat( root, &st ); if (res == -1) return NULL; RtlEnterCriticalSection( &dir_section ); #ifdef __ANDROID__ if ((f = fopen( "/proc/mounts", "r" ))) { device = parse_mount_entries( f, st.st_dev, st.st_ino ); fclose( f ); } #else if ((f = fopen( "/etc/mtab", "r" ))) { device = parse_mount_entries( f, st.st_dev, st.st_ino ); fclose( f ); } /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */ if (!device && (f = fopen( "/etc/fstab", "r" ))) { device = parse_mount_entries( f, st.st_dev, st.st_ino ); fclose( f ); } #endif if (device) { ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 ); if (ret) strcpy( ret, device ); } RtlLeaveCriticalSection( &dir_section ); #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__ ) || defined(__DragonFly__) char *device = NULL; int fd, res = -1; struct stat st; /* try to open it first to force it to get mounted */ if ((fd = open( root, O_RDONLY )) != -1) { res = fstat( fd, &st ); close( fd ); } /* now try normal stat just in case */ if (res == -1) res = stat( root, &st ); if (res == -1) return NULL; RtlEnterCriticalSection( &dir_section ); /* The FreeBSD parse_mount_entries doesn't require a file argument, so just * pass NULL. Leave the argument in for symmetry. */ device = parse_mount_entries( NULL, st.st_dev, st.st_ino ); if (device) { ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 ); if (ret) strcpy( ret, device ); } RtlLeaveCriticalSection( &dir_section ); #elif defined( sun ) FILE *f; char *device = NULL; int fd, res = -1; struct stat st; /* try to open it first to force it to get mounted */ if ((fd = open( root, O_RDONLY )) != -1) { res = fstat( fd, &st ); close( fd ); } /* now try normal stat just in case */ if (res == -1) res = stat( root, &st ); if (res == -1) return NULL; RtlEnterCriticalSection( &dir_section ); if ((f = fopen( "/etc/mnttab", "r" ))) { device = parse_mount_entries( f, st.st_dev, st.st_ino); fclose( f ); } /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */ if (!device && (f = fopen( "/etc/vfstab", "r" ))) { device = parse_vfstab_entries( f, st.st_dev, st.st_ino ); fclose( f ); } if (device) { ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 ); if (ret) strcpy( ret, device ); } RtlLeaveCriticalSection( &dir_section ); #elif defined(__APPLE__) struct statfs *mntStat; struct stat st; int i; int mntSize; dev_t dev; ino_t ino; static const char path_bsd_device[] = "/dev/disk"; int res; res = stat( root, &st ); if (res == -1) return NULL; dev = st.st_dev; ino = st.st_ino; RtlEnterCriticalSection( &dir_section ); mntSize = getmntinfo(&mntStat, MNT_NOWAIT); for (i = 0; i < mntSize && !ret; i++) { if (stat(mntStat[i].f_mntonname, &st ) == -1) continue; if (st.st_dev != dev || st.st_ino != ino) continue; /* FIXME add support for mounted network drive */ if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0) { /* set return value to the corresponding raw BSD node */ ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ ); if (ret) { strcpy(ret, "/dev/r"); strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1); } } } RtlLeaveCriticalSection( &dir_section ); #else static int warned; if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" ); #endif return ret; } /*********************************************************************** * get_device_mount_point * * Return the current mount point for a device. */ static char *get_device_mount_point( dev_t dev ) { char *ret = NULL; #ifdef linux FILE *f; RtlEnterCriticalSection( &dir_section ); #ifdef __ANDROID__ if ((f = fopen( "/proc/mounts", "r" ))) #else if ((f = fopen( "/etc/mtab", "r" ))) #endif { struct mntent *entry; struct stat st; char *p, *device; while ((entry = getmntent( f ))) { /* don't even bother stat'ing network mounts, there's no meaningful device anyway */ if (!strcmp( entry->mnt_type, "nfs" ) || !strcmp( entry->mnt_type, "cifs" ) || !strcmp( entry->mnt_type, "smbfs" ) || !strcmp( entry->mnt_type, "ncpfs" )) continue; if (!strcmp( entry->mnt_type, "supermount" )) { if ((device = strstr( entry->mnt_opts, "dev=" ))) { device += 4; if ((p = strchr( device, ',' ))) *p = 0; } } else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode)) { /* if device is a regular file check for a loop mount */ if ((device = strstr( entry->mnt_opts, "loop=" ))) { device += 5; if ((p = strchr( device, ',' ))) *p = 0; } } else device = entry->mnt_fsname; if (device && !stat( device, &st ) && S_ISBLK(st.st_mode) && st.st_rdev == dev) { ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry->mnt_dir) + 1 ); if (ret) strcpy( ret, entry->mnt_dir ); break; } } fclose( f ); } RtlLeaveCriticalSection( &dir_section ); #elif defined(__APPLE__) struct statfs *entry; struct stat st; int i, size; RtlEnterCriticalSection( &dir_section ); size = getmntinfo( &entry, MNT_NOWAIT ); for (i = 0; i < size; i++) { if (stat( entry[i].f_mntfromname, &st ) == -1) continue; if (S_ISBLK(st.st_mode) && st.st_rdev == dev) { ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry[i].f_mntonname) + 1 ); if (ret) strcpy( ret, entry[i].f_mntonname ); break; } } RtlLeaveCriticalSection( &dir_section ); #else static int warned; if (!warned++) FIXME( "unmounting devices not supported on this platform\n" ); #endif return ret; } #if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \ defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE) struct get_fsid { ULONG size; dev_t dev; fsid_t fsid; }; struct fs_cache { dev_t dev; fsid_t fsid; BOOLEAN case_sensitive; } fs_cache[64]; struct vol_caps { ULONG size; vol_capabilities_attr_t caps; }; /*********************************************************************** * look_up_fs_cache * * Checks if the specified file system is in the cache. */ static struct fs_cache *look_up_fs_cache( dev_t dev ) { int i; for (i = 0; i < ARRAY_SIZE( fs_cache ); i++) if (fs_cache[i].dev == dev) return fs_cache+i; return NULL; } /*********************************************************************** * add_fs_cache * * Adds the specified file system to the cache. */ static void add_fs_cache( dev_t dev, fsid_t fsid, BOOLEAN case_sensitive ) { int i; struct fs_cache *entry = look_up_fs_cache( dev ); static int once = 0; if (entry) { /* Update the cache */ entry->fsid = fsid; entry->case_sensitive = case_sensitive; return; } /* Add a new entry */ for (i = 0; i < ARRAY_SIZE( fs_cache ); i++) if (fs_cache[i].dev == 0) { /* This entry is empty, use it */ fs_cache[i].dev = dev; fs_cache[i].fsid = fsid; fs_cache[i].case_sensitive = case_sensitive; return; } /* Cache is out of space, warn */ if (!once++) WARN( "FS cache is out of space, expect performance problems\n" ); } /*********************************************************************** * get_dir_case_sensitivity_attr * * Checks if the volume containing the specified directory is case * sensitive or not. Uses getattrlist(2). */ static int get_dir_case_sensitivity_attr( const char *dir ) { char *mntpoint; struct attrlist attr; struct vol_caps caps; struct get_fsid get_fsid; struct fs_cache *entry; /* First get the FS ID of the volume */ attr.bitmapcount = ATTR_BIT_MAP_COUNT; attr.reserved = 0; attr.commonattr = ATTR_CMN_DEVID|ATTR_CMN_FSID; attr.volattr = attr.dirattr = attr.fileattr = attr.forkattr = 0; get_fsid.size = 0; if (getattrlist( dir, &attr, &get_fsid, sizeof(get_fsid), 0 ) != 0 || get_fsid.size != sizeof(get_fsid)) return -1; /* Try to look it up in the cache */ entry = look_up_fs_cache( get_fsid.dev ); if (entry && !memcmp( &entry->fsid, &get_fsid.fsid, sizeof(fsid_t) )) /* Cache lookup succeeded */ return entry->case_sensitive; /* Cache is stale at this point, we have to update it */ mntpoint = get_device_mount_point( get_fsid.dev ); /* Now look up the case-sensitivity */ attr.commonattr = 0; attr.volattr = ATTR_VOL_INFO|ATTR_VOL_CAPABILITIES; if (getattrlist( mntpoint, &attr, &caps, sizeof(caps), 0 ) < 0) { RtlFreeHeap( GetProcessHeap(), 0, mntpoint ); add_fs_cache( get_fsid.dev, get_fsid.fsid, TRUE ); return TRUE; } RtlFreeHeap( GetProcessHeap(), 0, mntpoint ); if (caps.size == sizeof(caps) && (caps.caps.valid[VOL_CAPABILITIES_FORMAT] & (VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING)) == (VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING)) { BOOLEAN ret; if ((caps.caps.capabilities[VOL_CAPABILITIES_FORMAT] & VOL_CAP_FMT_CASE_SENSITIVE) != VOL_CAP_FMT_CASE_SENSITIVE) ret = FALSE; else ret = TRUE; /* Update the cache */ add_fs_cache( get_fsid.dev, get_fsid.fsid, ret ); return ret; } return FALSE; } #endif /*********************************************************************** * get_dir_case_sensitivity_stat * * Checks if the volume containing the specified directory is case * sensitive or not. Uses (f)statfs(2), statvfs(2), fstatat(2), or ioctl(2). */ static BOOLEAN get_dir_case_sensitivity_stat( const char *dir ) { #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) struct statfs stfs; if (statfs( dir, &stfs ) == -1) return FALSE; /* Assume these file systems are always case insensitive on Mac OS. * For FreeBSD, only assume CIOPFS is case insensitive (AFAIK, Mac OS * is the only UNIX that supports case-insensitive lookup). */ if (!strcmp( stfs.f_fstypename, "fusefs" ) && !strncmp( stfs.f_mntfromname, "ciopfs", 5 )) return FALSE; #ifdef __APPLE__ if (!strcmp( stfs.f_fstypename, "msdos" ) || !strcmp( stfs.f_fstypename, "cd9660" ) || !strcmp( stfs.f_fstypename, "udf" ) || !strcmp( stfs.f_fstypename, "ntfs" ) || !strcmp( stfs.f_fstypename, "smbfs" )) return FALSE; #ifdef _DARWIN_FEATURE_64_BIT_INODE if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_fssubtype == 0 || stfs.f_fssubtype == 1 || stfs.f_fssubtype == 128)) return FALSE; #else /* The field says "reserved", but a quick look at the kernel source * tells us that this "reserved" field is really the same as the * "fssubtype" field from the inode64 structure (see munge_statfs() * in /bsd/vfs/vfs_syscalls.c). */ if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_reserved1 == 0 || stfs.f_reserved1 == 1 || stfs.f_reserved1 == 128)) return FALSE; #endif #endif return TRUE; #elif defined(__NetBSD__) struct statvfs stfs; if (statvfs( dir, &stfs ) == -1) return FALSE; /* Only assume CIOPFS is case insensitive. */ if (strcmp( stfs.f_fstypename, "fusefs" ) || strncmp( stfs.f_mntfromname, "ciopfs", 5 )) return TRUE; return FALSE; #elif defined(__linux__) BOOLEAN sens = TRUE; struct statfs stfs; struct stat st; int fd, flags; if ((fd = open( dir, O_RDONLY | O_NONBLOCK | O_LARGEFILE )) == -1) return TRUE; if (ioctl( fd, EXT2_IOC_GETFLAGS, &flags ) != -1 && (flags & EXT4_CASEFOLD_FL)) { sens = FALSE; } else if (fstatfs( fd, &stfs ) == 0 && /* CIOPFS is case insensitive. Instead of */ stfs.f_type == 0x65735546 /* FUSE_SUPER_MAGIC */ && /* parsing mtab to discover if the FUSE FS */ fstatat( fd, ".ciopfs", &st, AT_NO_AUTOMOUNT ) == 0) /* is CIOPFS, look for .ciopfs in the dir. */ { sens = FALSE; } close( fd ); return sens; #else return TRUE; #endif } /*********************************************************************** * get_dir_case_sensitivity * * Checks if the volume containing the specified directory is case * sensitive or not. Uses multiple methods, depending on platform. */ static BOOLEAN get_dir_case_sensitivity( const char *dir ) { #if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \ defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE) int case_sensitive = get_dir_case_sensitivity_attr( dir ); if (case_sensitive != -1) return case_sensitive; #endif return get_dir_case_sensitivity_stat( dir ); } /*********************************************************************** * init_options * * Initialize the show_dot_files options. */ static DWORD WINAPI init_options( RTL_RUN_ONCE *once, void *param, void **context ) { static const WCHAR WineW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e',0}; static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0}; char tmp[80]; HANDLE root, hkey; DWORD dummy; OBJECT_ATTRIBUTES attr; UNICODE_STRING nameW; RtlOpenCurrentUser( KEY_ALL_ACCESS, &root ); attr.Length = sizeof(attr); attr.RootDirectory = root; attr.ObjectName = &nameW; attr.Attributes = 0; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; RtlInitUnicodeString( &nameW, WineW ); /* @@ Wine registry key: HKCU\Software\Wine */ if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) { RtlInitUnicodeString( &nameW, ShowDotFilesW ); if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy )) { WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data; show_dot_files = IS_OPTION_TRUE( str[0] ); } NtClose( hkey ); } NtClose( root ); /* a couple of directories that we don't want to return in directory searches */ ignore_file( config_dir ); ignore_file( "/dev" ); ignore_file( "/proc" ); #ifdef linux ignore_file( "/sys" ); #endif return TRUE; } /*********************************************************************** * DIR_is_hidden_file * * Check if the specified file should be hidden based on its name and the show dot files option. */ BOOL DIR_is_hidden_file( const UNICODE_STRING *name ) { WCHAR *p, *end; RtlRunOnceExecuteOnce( &init_once, init_options, NULL, NULL ); if (show_dot_files) return FALSE; end = p = name->Buffer + name->Length/sizeof(WCHAR); while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--; while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--; if (p == end || *p != '.') return FALSE; /* make sure it isn't '.' or '..' */ if (p + 1 == end) return FALSE; if (p[1] == '.' && p + 2 == end) return FALSE; return TRUE; } /*********************************************************************** * hash_short_file_name * * Transform a Unix file name into a hashed DOS name. If the name is not a valid * DOS name, it is replaced by a hashed version that fits in 8.3 format. * 'buffer' must be at least 12 characters long. * Returns length of short name in bytes; short name is NOT null-terminated. */ static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer ) { static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345"; LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR); LPWSTR dst; unsigned short hash; int i; /* Compute the hash code of the file name */ /* If you know something about hash functions, feel free to */ /* insert a better algorithm here... */ if (!is_case_sensitive) { for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++) hash = (hash<<3) ^ (hash>>5) ^ RtlDowncaseUnicodeChar(*p) ^ (RtlDowncaseUnicodeChar(p[1]) << 8); hash = (hash<<3) ^ (hash>>5) ^ RtlDowncaseUnicodeChar(*p); /* Last character */ } else { for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++) hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8); hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */ } /* Find last dot for start of the extension */ for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p; /* Copy first 4 chars, replacing invalid chars with '_' */ for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++) { if (p == end || p == ext) break; *dst++ = is_invalid_dos_char(*p) ? '_' : *p; } /* Pad to 5 chars with '~' */ while (i-- >= 0) *dst++ = '~'; /* Insert hash code converted to 3 ASCII chars */ *dst++ = hash_chars[(hash >> 10) & 0x1f]; *dst++ = hash_chars[(hash >> 5) & 0x1f]; *dst++ = hash_chars[hash & 0x1f]; /* Copy the first 3 chars of the extension (if any) */ if (ext) { *dst++ = '.'; for (i = 3, ext++; (i > 0) && ext < end; i--, ext++) *dst++ = is_invalid_dos_char(*ext) ? '_' : *ext; } return dst - buffer; } /*********************************************************************** * match_filename * * Check a long file name against a mask. * * Tests (done in W95 DOS shell - case insensitive): * *.txt test1.test.txt * * *st1* test1.txt * * *.t??????.t* test1.ta.tornado.txt * * *tornado* test1.ta.tornado.txt * * t*t test1.ta.tornado.txt * * ?est* test1.txt * * ?est??? test1.txt - * *test1.txt* test1.txt * * h?l?o*t.dat hellothisisatest.dat * */ static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str ) { BOOL mismatch; const WCHAR *name = name_str->Buffer; const WCHAR *mask = mask_str->Buffer; const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR); const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR); const WCHAR *lastjoker = NULL; const WCHAR *next_to_retry = NULL; while (name < name_end && mask < mask_end) { switch(*mask) { case '*': mask++; while (mask < mask_end && *mask == '*') mask++; /* Skip consecutive '*' */ if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */ lastjoker = mask; /* skip to the next match after the joker(s) */ if (is_case_sensitive) while (name < name_end && (*name != *mask)) name++; else while (name < name_end && (towupper(*name) != towupper(*mask))) name++; next_to_retry = name; break; case '?': mask++; name++; break; default: if (is_case_sensitive) mismatch = (*mask != *name); else mismatch = (towupper(*mask) != towupper(*name)); if (!mismatch) { mask++; name++; if (mask == mask_end) { if (name == name_end) return TRUE; if (lastjoker) mask = lastjoker; } } else /* mismatch ! */ { if (lastjoker) /* we had an '*', so we can try unlimitedly */ { mask = lastjoker; /* this scan sequence was a mismatch, so restart * 1 char after the first char we checked last time */ next_to_retry++; name = next_to_retry; } else return FALSE; /* bad luck */ } break; } } while (mask < mask_end && ((*mask == '.') || (*mask == '*'))) mask++; /* Ignore trailing '.' or '*' in mask */ return (name == name_end && mask == mask_end); } /*********************************************************************** * append_entry * * Add a file to the directory data if it matches the mask. */ static BOOL append_entry( struct dir_data *data, const char *long_name, const char *short_name, const UNICODE_STRING *mask ) { int long_len, short_len; WCHAR long_nameW[MAX_DIR_ENTRY_LEN + 1]; WCHAR short_nameW[13]; UNICODE_STRING str; long_len = ntdll_umbstowcs( long_name, strlen(long_name), long_nameW, ARRAY_SIZE(long_nameW) ); if (long_len == ARRAY_SIZE(long_nameW)) return TRUE; long_nameW[long_len] = 0; str.Buffer = long_nameW; str.Length = long_len * sizeof(WCHAR); str.MaximumLength = sizeof(long_nameW); if (short_name) { short_len = ntdll_umbstowcs( short_name, strlen(short_name), short_nameW, ARRAY_SIZE( short_nameW ) - 1 ); } else /* generate a short name if necessary */ { BOOLEAN spaces; short_len = 0; if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces) short_len = hash_short_file_name( &str, short_nameW ); } short_nameW[short_len] = 0; wcsupr( short_nameW ); TRACE( "long %s short %s mask %s\n", debugstr_w( long_nameW ), debugstr_w( short_nameW ), debugstr_us( mask )); if (mask && !match_filename( &str, mask )) { if (!short_len) return TRUE; /* no short name to match */ str.Buffer = short_nameW; str.Length = short_len * sizeof(WCHAR); str.MaximumLength = sizeof(short_nameW); if (!match_filename( &str, mask )) return TRUE; } return add_dir_data_names( data, long_nameW, short_nameW, long_name ); } /*********************************************************************** * get_dir_data_entry * * Return a directory entry from the cached data. */ static NTSTATUS get_dir_data_entry( struct dir_data *dir_data, void *info_ptr, IO_STATUS_BLOCK *io, ULONG max_length, FILE_INFORMATION_CLASS class, union file_directory_info **last_info ) { const struct dir_data_names *names = &dir_data->names[dir_data->pos]; union file_directory_info *info; struct stat st; ULONG name_len, start, dir_size, attributes; if (get_file_info( names->unix_name, &st, &attributes ) == -1) { TRACE( "file no longer exists %s\n", names->unix_name ); return STATUS_SUCCESS; } if (is_ignored_file( &st )) { TRACE( "ignoring file %s\n", names->unix_name ); return STATUS_SUCCESS; } start = dir_info_align( io->Information ); dir_size = dir_info_size( class, 0 ); if (start + dir_size > max_length) return STATUS_MORE_ENTRIES; max_length -= start + dir_size; name_len = wcslen( names->long_name ) * sizeof(WCHAR); /* if this is not the first entry, fail; the first entry is always returned (but truncated) */ if (*last_info && name_len > max_length) return STATUS_MORE_ENTRIES; info = (union file_directory_info *)((char *)info_ptr + start); info->dir.NextEntryOffset = 0; info->dir.FileIndex = 0; /* NTFS always has 0 here, so let's not bother with it */ /* all the structures except FileNamesInformation start with a FileDirectoryInformation layout */ if (class != FileNamesInformation) { if (st.st_dev != dir_data->id.dev) st.st_ino = 0; /* ignore inode if on a different device */ if (!show_dot_files && names->long_name[0] == '.' && names->long_name[1] && (names->long_name[1] != '.' || names->long_name[2])) attributes |= FILE_ATTRIBUTE_HIDDEN; fill_file_info( &st, attributes, info, class ); } switch (class) { case FileDirectoryInformation: info->dir.FileNameLength = name_len; break; case FileFullDirectoryInformation: info->full.EaSize = 0; /* FIXME */ info->full.FileNameLength = name_len; break; case FileIdFullDirectoryInformation: info->id_full.EaSize = 0; /* FIXME */ info->id_full.FileNameLength = name_len; break; case FileBothDirectoryInformation: info->both.EaSize = 0; /* FIXME */ info->both.ShortNameLength = wcslen( names->short_name ) * sizeof(WCHAR); memcpy( info->both.ShortName, names->short_name, info->both.ShortNameLength ); info->both.FileNameLength = name_len; break; case FileIdBothDirectoryInformation: info->id_both.EaSize = 0; /* FIXME */ info->id_both.ShortNameLength = wcslen( names->short_name ) * sizeof(WCHAR); memcpy( info->id_both.ShortName, names->short_name, info->id_both.ShortNameLength ); info->id_both.FileNameLength = name_len; break; case FileIdGlobalTxDirectoryInformation: info->id_tx.TxInfoFlags = 0; info->id_tx.FileNameLength = name_len; break; case FileNamesInformation: info->names.FileNameLength = name_len; break; default: assert(0); return 0; } memcpy( (char *)info + dir_size, names->long_name, min( name_len, max_length ) ); io->Information = start + dir_size + min( name_len, max_length ); if (*last_info) (*last_info)->next = (char *)info - (char *)*last_info; *last_info = info; return name_len > max_length ? STATUS_BUFFER_OVERFLOW : STATUS_SUCCESS; } #ifdef VFAT_IOCTL_READDIR_BOTH /*********************************************************************** * read_directory_vfat * * Read a directory using the VFAT ioctl; helper for NtQueryDirectoryFile. */ static NTSTATUS read_directory_data_vfat( struct dir_data *data, int fd, const UNICODE_STRING *mask ) { char *short_name, *long_name; KERNEL_DIRENT de[2]; NTSTATUS status = STATUS_NO_MEMORY; off_t old_pos = lseek( fd, 0, SEEK_CUR ); lseek( fd, 0, SEEK_SET ); if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) { if (errno != ENOENT) { status = STATUS_NOT_SUPPORTED; goto done; } de[0].d_reclen = 0; } if (!append_entry( data, ".", NULL, mask )) goto done; if (!append_entry( data, "..", NULL, mask )) goto done; while (de[0].d_reclen) { if (strcmp( de[0].d_name, "." ) && strcmp( de[0].d_name, ".." )) { if (de[1].d_name[0]) { short_name = de[0].d_name; long_name = de[1].d_name; } else { long_name = de[0].d_name; short_name = NULL; } if (!append_entry( data, long_name, short_name, mask )) goto done; } if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break; } status = STATUS_SUCCESS; done: lseek( fd, old_pos, SEEK_SET ); return status; } #endif /* VFAT_IOCTL_READDIR_BOTH */ #ifdef HAVE_GETATTRLIST /*********************************************************************** * read_directory_getattrlist * * Read a single file from a directory by determining whether the file * identified by mask exists using getattrlist. */ static NTSTATUS read_directory_data_getattrlist( struct dir_data *data, const char *unix_name ) { struct attrlist attrlist; #include "pshpack4.h" struct { u_int32_t length; struct attrreference name_reference; fsobj_type_t type; char name[NAME_MAX * 3 + 1]; } buffer; #include "poppack.h" memset( &attrlist, 0, sizeof(attrlist) ); attrlist.bitmapcount = ATTR_BIT_MAP_COUNT; attrlist.commonattr = ATTR_CMN_NAME | ATTR_CMN_OBJTYPE; if (getattrlist( unix_name, &attrlist, &buffer, sizeof(buffer), FSOPT_NOFOLLOW ) == -1) return STATUS_NO_SUCH_FILE; /* If unix_name named a symlink, the above may have succeeded even if the symlink is broken. Check that with another call without FSOPT_NOFOLLOW. We don't ask for any attributes. */ if (buffer.type == VLNK) { u_int32_t dummy; attrlist.commonattr = 0; if (getattrlist( unix_name, &attrlist, &dummy, sizeof(dummy), 0 ) == -1) return STATUS_NO_SUCH_FILE; } TRACE( "found %s\n", buffer.name ); if (!append_entry( data, buffer.name, NULL, NULL )) return STATUS_NO_MEMORY; return STATUS_SUCCESS; } #endif /* HAVE_GETATTRLIST */ /*********************************************************************** * read_directory_stat * * Read a single file from a directory by determining whether the file * identified by mask exists using stat. */ static NTSTATUS read_directory_data_stat( struct dir_data *data, const char *unix_name ) { struct stat st; /* if the file system is not case sensitive we can't find the actual name through stat() */ if (!get_dir_case_sensitivity(".")) return STATUS_NO_SUCH_FILE; if (stat( unix_name, &st ) == -1) return STATUS_NO_SUCH_FILE; TRACE( "found %s\n", unix_name ); if (!append_entry( data, unix_name, NULL, NULL )) return STATUS_NO_MEMORY; return STATUS_SUCCESS; } /*********************************************************************** * read_directory_readdir * * Read a directory using the POSIX readdir interface; helper for NtQueryDirectoryFile. */ static NTSTATUS read_directory_data_readdir( struct dir_data *data, const UNICODE_STRING *mask ) { struct dirent *de; NTSTATUS status = STATUS_NO_MEMORY; DIR *dir = opendir( "." ); if (!dir) return STATUS_NO_SUCH_FILE; if (!append_entry( data, ".", NULL, mask )) goto done; if (!append_entry( data, "..", NULL, mask )) goto done; while ((de = readdir( dir ))) { if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue; if (!append_entry( data, de->d_name, NULL, mask )) goto done; } status = STATUS_SUCCESS; done: closedir( dir ); return status; } /*********************************************************************** * read_directory_data * * Read the full contents of a directory, using one of the above helper functions. */ static NTSTATUS read_directory_data( struct dir_data *data, int fd, const UNICODE_STRING *mask ) { NTSTATUS status; #ifdef VFAT_IOCTL_READDIR_BOTH if (!(status = read_directory_data_vfat( data, fd, mask ))) return status; #endif if (!has_wildcard( mask )) { /* convert the mask to a Unix name and check for it */ char unix_name[MAX_DIR_ENTRY_LEN * 3 + 1]; int ret = ntdll_wcstoumbs( mask->Buffer, mask->Length / sizeof(WCHAR), unix_name, sizeof(unix_name) - 1, TRUE ); if (ret > 0) { unix_name[ret] = 0; #ifdef HAVE_GETATTRLIST if (!(status = read_directory_data_getattrlist( data, unix_name ))) return status; #endif if (!(status = read_directory_data_stat( data, unix_name ))) return status; } } return read_directory_data_readdir( data, mask ); } /* compare file names for directory sorting */ static int name_compare( const void *a, const void *b ) { const struct dir_data_names *file_a = (const struct dir_data_names *)a; const struct dir_data_names *file_b = (const struct dir_data_names *)b; int ret = RtlCompareUnicodeStrings( file_a->long_name, wcslen(file_a->long_name), file_b->long_name, wcslen(file_b->long_name), TRUE ); if (!ret) ret = wcscmp( file_a->long_name, file_b->long_name ); return ret; } /*********************************************************************** * init_cached_dir_data * * Initialize the cached directory contents. */ static NTSTATUS init_cached_dir_data( struct dir_data **data_ret, int fd, const UNICODE_STRING *mask ) { struct dir_data *data; struct stat st; NTSTATUS status; unsigned int i; if (!(data = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return STATUS_NO_MEMORY; if ((status = read_directory_data( data, fd, mask ))) { free_dir_data( data ); return status; } /* sort filenames, but not "." and ".." */ i = 0; if (i < data->count && !strcmp( data->names[i].unix_name, "." )) i++; if (i < data->count && !strcmp( data->names[i].unix_name, ".." )) i++; if (i < data->count) qsort( data->names + i, data->count - i, sizeof(*data->names), name_compare ); if (data->count) { /* release unused space */ if (data->buffer) RtlReAllocateHeap( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, data->buffer, offsetof( struct dir_data_buffer, data[data->buffer->pos] )); if (data->count < data->size) RtlReAllocateHeap( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, data->names, data->count * sizeof(*data->names) ); if (!fstat( fd, &st )) { data->id.dev = st.st_dev; data->id.ino = st.st_ino; } } TRACE( "mask %s found %u files\n", debugstr_us( mask ), data->count ); for (i = 0; i < data->count; i++) TRACE( "%s %s\n", debugstr_w(data->names[i].long_name), debugstr_w(data->names[i].short_name) ); *data_ret = data; return data->count ? STATUS_SUCCESS : STATUS_NO_SUCH_FILE; } /*********************************************************************** * get_cached_dir_data * * Retrieve the cached directory data, or initialize it if necessary. */ static NTSTATUS get_cached_dir_data( HANDLE handle, struct dir_data **data_ret, int fd, const UNICODE_STRING *mask ) { unsigned int i; int entry = -1, free_entries[16]; NTSTATUS status; SERVER_START_REQ( get_directory_cache_entry ) { req->handle = wine_server_obj_handle( handle ); wine_server_set_reply( req, free_entries, sizeof(free_entries) ); if (!(status = wine_server_call( req ))) entry = reply->entry; for (i = 0; i < wine_server_reply_size( reply ) / sizeof(*free_entries); i++) { int free_idx = free_entries[i]; if (free_idx < dir_data_cache_size) { free_dir_data( dir_data_cache[free_idx] ); dir_data_cache[free_idx] = NULL; } } } SERVER_END_REQ; if (status) { if (status == STATUS_SHARING_VIOLATION) FIXME( "shared directory handle not supported yet\n" ); return status; } if (entry >= dir_data_cache_size) { unsigned int size = max( dir_data_cache_initial_size, max( dir_data_cache_size * 2, entry + 1 ) ); struct dir_data **new_cache; if (dir_data_cache) new_cache = RtlReAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, dir_data_cache, size * sizeof(*new_cache) ); else new_cache = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, size * sizeof(*new_cache) ); if (!new_cache) return STATUS_NO_MEMORY; dir_data_cache = new_cache; dir_data_cache_size = size; } if (!dir_data_cache[entry]) status = init_cached_dir_data( &dir_data_cache[entry], fd, mask ); *data_ret = dir_data_cache[entry]; return status; } /****************************************************************************** * NtQueryDirectoryFile [NTDLL.@] * ZwQueryDirectoryFile [NTDLL.@] */ NTSTATUS WINAPI DECLSPEC_HOTPATCH NtQueryDirectoryFile( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc_routine, PVOID apc_context, PIO_STATUS_BLOCK io, PVOID buffer, ULONG length, FILE_INFORMATION_CLASS info_class, BOOLEAN single_entry, PUNICODE_STRING mask, BOOLEAN restart_scan ) { int cwd, fd, needs_close; struct dir_data *data; NTSTATUS status; TRACE("(%p %p %p %p %p %p 0x%08x 0x%08x 0x%08x %s 0x%08x\n", handle, event, apc_routine, apc_context, io, buffer, length, info_class, single_entry, debugstr_us(mask), restart_scan); if (event || apc_routine) { FIXME( "Unsupported yet option\n" ); return STATUS_NOT_IMPLEMENTED; } switch (info_class) { case FileDirectoryInformation: case FileBothDirectoryInformation: case FileFullDirectoryInformation: case FileIdBothDirectoryInformation: case FileIdFullDirectoryInformation: case FileIdGlobalTxDirectoryInformation: case FileNamesInformation: if (length < dir_info_align( dir_info_size( info_class, 1 ))) return STATUS_INFO_LENGTH_MISMATCH; break; case FileObjectIdInformation: if (length != sizeof(FILE_OBJECTID_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH; return STATUS_INVALID_INFO_CLASS; case FileQuotaInformation: if (length != sizeof(FILE_QUOTA_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH; return STATUS_INVALID_INFO_CLASS; case FileReparsePointInformation: if (length != sizeof(FILE_REPARSE_POINT_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH; return STATUS_INVALID_INFO_CLASS; default: return STATUS_INVALID_INFO_CLASS; } if (!buffer) return STATUS_ACCESS_VIOLATION; if ((status = server_get_unix_fd( handle, FILE_LIST_DIRECTORY, &fd, &needs_close, NULL, NULL )) != STATUS_SUCCESS) return status; io->Information = 0; RtlRunOnceExecuteOnce( &init_once, init_options, NULL, NULL ); RtlEnterCriticalSection( &dir_section ); cwd = open( ".", O_RDONLY ); if (fchdir( fd ) != -1) { if (!(status = get_cached_dir_data( handle, &data, fd, mask ))) { union file_directory_info *last_info = NULL; if (restart_scan) data->pos = 0; while (!status && data->pos < data->count) { status = get_dir_data_entry( data, buffer, io, length, info_class, &last_info ); if (!status || status == STATUS_BUFFER_OVERFLOW) data->pos++; if (single_entry && last_info) break; } if (!last_info) status = STATUS_NO_MORE_FILES; else if (status == STATUS_MORE_ENTRIES) status = STATUS_SUCCESS; io->u.Status = status; } if (cwd == -1 || fchdir( cwd ) == -1) chdir( "/" ); } else status = FILE_GetNtStatus(); RtlLeaveCriticalSection( &dir_section ); if (needs_close) close( fd ); if (cwd != -1) close( cwd ); TRACE( "=> %x (%ld)\n", status, io->Information ); return status; } /*********************************************************************** * find_file_in_dir * * Find a file in a directory the hard way, by doing a case-insensitive search. * The file found is appended to unix_name at pos. * There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos. */ static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length, BOOLEAN check_case, BOOLEAN *is_win_dir ) { WCHAR buffer[MAX_DIR_ENTRY_LEN]; UNICODE_STRING str; BOOLEAN spaces, is_name_8_dot_3; DIR *dir; struct dirent *de; struct stat st; int ret; /* try a shortcut for this directory */ unix_name[pos++] = '/'; ret = ntdll_wcstoumbs( name, length, unix_name + pos, MAX_DIR_ENTRY_LEN + 1, TRUE ); if (ret >= 0 && ret <= MAX_DIR_ENTRY_LEN) { unix_name[pos + ret] = 0; if (!stat( unix_name, &st )) { if (is_win_dir) *is_win_dir = is_same_file( &windir, &st ); return STATUS_SUCCESS; } } if (check_case) goto not_found; /* we want an exact match */ if (pos > 1) unix_name[pos - 1] = 0; else unix_name[1] = 0; /* keep the initial slash */ /* check if it fits in 8.3 so that we don't look for short names if we won't need them */ str.Buffer = (WCHAR *)name; str.Length = length * sizeof(WCHAR); str.MaximumLength = str.Length; is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces; #ifndef VFAT_IOCTL_READDIR_BOTH is_name_8_dot_3 = is_name_8_dot_3 && length >= 8 && name[4] == '~'; #endif if (!is_name_8_dot_3 && !get_dir_case_sensitivity( unix_name )) goto not_found; /* now look for it through the directory */ #ifdef VFAT_IOCTL_READDIR_BOTH if (is_name_8_dot_3) { int fd = open( unix_name, O_RDONLY | O_DIRECTORY ); if (fd != -1) { KERNEL_DIRENT kde[2]; if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)kde ) != -1) { unix_name[pos - 1] = '/'; while (kde[0].d_reclen) { if (kde[1].d_name[0]) { ret = ntdll_umbstowcs( kde[1].d_name, strlen(kde[1].d_name), buffer, MAX_DIR_ENTRY_LEN ); if (ret == length && !RtlCompareUnicodeStrings( buffer, ret, name, ret, TRUE )) { strcpy( unix_name + pos, kde[1].d_name ); close( fd ); goto success; } } ret = ntdll_umbstowcs( kde[0].d_name, strlen(kde[0].d_name), buffer, MAX_DIR_ENTRY_LEN ); if (ret == length && !RtlCompareUnicodeStrings( buffer, ret, name, ret, TRUE )) { strcpy( unix_name + pos, kde[1].d_name[0] ? kde[1].d_name : kde[0].d_name ); close( fd ); goto success; } if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)kde ) == -1) { close( fd ); goto not_found; } } } close( fd ); } /* fall through to normal handling */ } #endif /* VFAT_IOCTL_READDIR_BOTH */ if (!(dir = opendir( unix_name ))) { if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND; else return FILE_GetNtStatus(); } unix_name[pos - 1] = '/'; str.Buffer = buffer; str.MaximumLength = sizeof(buffer); while ((de = readdir( dir ))) { ret = ntdll_umbstowcs( de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN ); if (ret == length && !RtlCompareUnicodeStrings( buffer, ret, name, ret, TRUE )) { strcpy( unix_name + pos, de->d_name ); closedir( dir ); goto success; } if (!is_name_8_dot_3) continue; str.Length = ret * sizeof(WCHAR); if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces) { WCHAR short_nameW[12]; ret = hash_short_file_name( &str, short_nameW ); if (ret == length && !wcsnicmp( short_nameW, name, length )) { strcpy( unix_name + pos, de->d_name ); closedir( dir ); goto success; } } } closedir( dir ); not_found: unix_name[pos - 1] = 0; return STATUS_OBJECT_PATH_NOT_FOUND; success: if (is_win_dir && !stat( unix_name, &st )) *is_win_dir = is_same_file( &windir, &st ); return STATUS_SUCCESS; } #ifndef _WIN64 static const WCHAR catrootW[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t',0}; static const WCHAR catroot2W[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t','2',0}; static const WCHAR driversstoreW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','s','t','o','r','e',0}; static const WCHAR driversetcW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','\\','e','t','c',0}; static const WCHAR logfilesW[] = {'s','y','s','t','e','m','3','2','\\','l','o','g','f','i','l','e','s',0}; static const WCHAR spoolW[] = {'s','y','s','t','e','m','3','2','\\','s','p','o','o','l',0}; static const WCHAR system32W[] = {'s','y','s','t','e','m','3','2',0}; static const WCHAR sysnativeW[] = {'s','y','s','n','a','t','i','v','e',0}; static const WCHAR regeditW[] = {'r','e','g','e','d','i','t','.','e','x','e',0}; static struct { const WCHAR *source; const char *unix_target; } redirects[] = { { catrootW, NULL }, { catroot2W, NULL }, { driversstoreW, NULL }, { driversetcW, NULL }, { logfilesW, NULL }, { spoolW, NULL }, { system32W, "syswow64" }, { sysnativeW, "system32" }, { regeditW, "syswow64/regedit.exe" } }; static unsigned int nb_redirects; /*********************************************************************** * init_redirects */ static void init_redirects(void) { static const char windows_dir[] = "/dosdevices/c:/windows"; char *dir; struct stat st; if (!(dir = RtlAllocateHeap( GetProcessHeap(), 0, strlen(config_dir) + sizeof(windows_dir) ))) return; strcpy( dir, config_dir ); strcat( dir, windows_dir ); if (!stat( dir, &st )) { windir.dev = st.st_dev; windir.ino = st.st_ino; nb_redirects = ARRAY_SIZE( redirects ); } else ERR( "%s: %s\n", dir, strerror(errno) ); RtlFreeHeap( GetProcessHeap(), 0, dir ); } /*********************************************************************** * match_redirect * * Check if path matches a redirect name. If yes, return matched length. */ static int match_redirect( const WCHAR *path, int len, const WCHAR *redir, BOOLEAN check_case ) { int i = 0; while (i < len) { int start = i; while (i < len && !IS_SEPARATOR(path[i])) i++; if (check_case) { if (wcsncmp( path + start, redir, i - start )) return 0; } else { if (wcsnicmp( path + start, redir, i - start )) return 0; } redir += i - start; while (i < len && IS_SEPARATOR(path[i])) i++; if (!*redir) return i; if (*redir++ != '\\') return 0; } return 0; } /*********************************************************************** * get_redirect_path * * Retrieve the Unix path corresponding to a redirected path if any. */ static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, BOOLEAN check_case ) { unsigned int i; int len; for (i = 0; i < nb_redirects; i++) { if ((len = match_redirect( name, length, redirects[i].source, check_case ))) { if (!redirects[i].unix_target) break; unix_name[pos++] = '/'; strcpy( unix_name + pos, redirects[i].unix_target ); return len; } } return 0; } #else /* _WIN64 */ /* there are no redirects on 64-bit */ static const unsigned int nb_redirects = 0; static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, BOOLEAN check_case ) { return 0; } #endif /*********************************************************************** * init_directories */ void init_directories(void) { #ifndef _WIN64 if (is_wow64) init_redirects(); #endif } /****************************************************************************** * get_dos_device * * Get the Unix path of a DOS device. */ static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret ) { struct stat st; char *unix_name, *new_name, *dev; unsigned int i; int unix_len; /* make sure the device name is ASCII */ for (i = 0; i < name_len; i++) if (name[i] <= 32 || name[i] >= 127) return STATUS_BAD_DEVICE_TYPE; unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1; if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len ))) return STATUS_NO_MEMORY; strcpy( unix_name, config_dir ); strcat( unix_name, "/dosdevices/" ); dev = unix_name + strlen(unix_name); for (i = 0; i < name_len; i++) dev[i] = (name[i] >= 'A' && name[i] <= 'Z' ? name[i] + 32 : name[i]); dev[i] = 0; /* special case for drive devices */ if (name_len == 2 && dev[1] == ':') { dev[i++] = ':'; dev[i] = 0; } for (;;) { if (!stat( unix_name, &st )) { TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) ); unix_name_ret->Buffer = unix_name; unix_name_ret->Length = strlen(unix_name); unix_name_ret->MaximumLength = unix_len; return STATUS_SUCCESS; } if (!dev) break; /* now try some defaults for it */ if (!strcmp( dev, "aux" )) { strcpy( dev, "com1" ); continue; } if (!strcmp( dev, "prn" )) { strcpy( dev, "lpt1" ); continue; } new_name = NULL; if (dev[1] == ':' && dev[2] == ':') /* drive device */ { dev[2] = 0; /* remove last ':' to get the drive mount point symlink */ new_name = get_default_drive_device( unix_name ); } if (!new_name) break; RtlFreeHeap( GetProcessHeap(), 0, unix_name ); unix_name = new_name; unix_len = strlen(unix_name) + 1; dev = NULL; /* last try */ } RtlFreeHeap( GetProcessHeap(), 0, unix_name ); return STATUS_BAD_DEVICE_TYPE; } /* return the length of the DOS namespace prefix if any */ static inline int get_dos_prefix_len( const UNICODE_STRING *name ) { static const WCHAR nt_prefixW[] = {'\\','?','?','\\'}; static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'}; if (name->Length >= sizeof(nt_prefixW) && !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) )) return ARRAY_SIZE( nt_prefixW ); if (name->Length >= sizeof(dosdev_prefixW) && !wcsnicmp( name->Buffer, dosdev_prefixW, ARRAY_SIZE( dosdev_prefixW ))) return ARRAY_SIZE( dosdev_prefixW ); return 0; } /****************************************************************************** * find_file_id * * Recursively search directories from the dir queue for a given inode. */ static NTSTATUS find_file_id( ANSI_STRING *unix_name, ULONGLONG file_id, dev_t dev ) { unsigned int pos; DIR *dir; struct dirent *de; NTSTATUS status; struct stat st; while (!(status = next_dir_in_queue( unix_name->Buffer ))) { if (!(dir = opendir( unix_name->Buffer ))) continue; TRACE( "searching %s for %s\n", unix_name->Buffer, wine_dbgstr_longlong(file_id) ); pos = strlen( unix_name->Buffer ); if (pos + MAX_DIR_ENTRY_LEN >= unix_name->MaximumLength/sizeof(WCHAR)) { char *new = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name->Buffer, unix_name->MaximumLength * 2 ); if (!new) { closedir( dir ); return STATUS_NO_MEMORY; } unix_name->MaximumLength *= 2; unix_name->Buffer = new; } unix_name->Buffer[pos++] = '/'; while ((de = readdir( dir ))) { if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue; strcpy( unix_name->Buffer + pos, de->d_name ); if (lstat( unix_name->Buffer, &st ) == -1) continue; if (st.st_dev != dev) continue; if (st.st_ino == file_id) { closedir( dir ); return STATUS_SUCCESS; } if (!S_ISDIR( st.st_mode )) continue; if ((status = add_dir_to_queue( unix_name->Buffer )) != STATUS_SUCCESS) { closedir( dir ); return status; } } closedir( dir ); } return status; } /****************************************************************************** * file_id_to_unix_file_name * * Lookup a file from its file id instead of its name. */ NTSTATUS file_id_to_unix_file_name( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name ) { enum server_fd_type type; int old_cwd, root_fd, needs_close; NTSTATUS status; ULONGLONG file_id; struct stat st, root_st; if (attr->ObjectName->Length != sizeof(ULONGLONG)) return STATUS_OBJECT_PATH_SYNTAX_BAD; if (!attr->RootDirectory) return STATUS_INVALID_PARAMETER; memcpy( &file_id, attr->ObjectName->Buffer, sizeof(file_id) ); unix_name->MaximumLength = 2 * MAX_DIR_ENTRY_LEN + 4; if (!(unix_name->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, unix_name->MaximumLength ))) return STATUS_NO_MEMORY; strcpy( unix_name->Buffer, "." ); if ((status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL ))) goto done; if (type != FD_TYPE_DIR) { status = STATUS_OBJECT_TYPE_MISMATCH; goto done; } fstat( root_fd, &root_st ); if (root_st.st_ino == file_id) /* shortcut for "." */ { status = STATUS_SUCCESS; goto done; } RtlEnterCriticalSection( &dir_section ); if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1) { /* shortcut for ".." */ if (!stat( "..", &st ) && st.st_dev == root_st.st_dev && st.st_ino == file_id) { strcpy( unix_name->Buffer, ".." ); status = STATUS_SUCCESS; } else { status = add_dir_to_queue( "." ); if (!status) status = find_file_id( unix_name, file_id, root_st.st_dev ); if (!status) /* get rid of "./" prefix */ memmove( unix_name->Buffer, unix_name->Buffer + 2, strlen(unix_name->Buffer) - 1 ); flush_dir_queue(); } if (fchdir( old_cwd ) == -1) chdir( "/" ); } else status = FILE_GetNtStatus(); RtlLeaveCriticalSection( &dir_section ); if (old_cwd != -1) close( old_cwd ); done: if (status == STATUS_SUCCESS) { TRACE( "%s -> %s\n", wine_dbgstr_longlong(file_id), debugstr_a(unix_name->Buffer) ); unix_name->Length = strlen( unix_name->Buffer ); } else { TRACE( "%s not found in dir %p\n", wine_dbgstr_longlong(file_id), attr->RootDirectory ); RtlFreeHeap( GetProcessHeap(), 0, unix_name->Buffer ); } if (needs_close) close( root_fd ); return status; } /****************************************************************************** * lookup_unix_name * * Helper for nt_to_unix_file_name */ static NTSTATUS lookup_unix_name( const WCHAR *name, int name_len, char **buffer, int unix_len, int pos, UINT disposition, BOOLEAN check_case ) { NTSTATUS status; int ret, len; struct stat st; char *unix_name = *buffer; const BOOL redirect = nb_redirects && ntdll_get_thread_data()->wow64_redir; /* try a shortcut first */ while (name_len && IS_SEPARATOR(*name)) { name++; name_len--; } unix_name[pos] = '/'; ret = ntdll_wcstoumbs( name, name_len, unix_name + pos + 1, unix_len - pos - 1, TRUE ); if (ret >= 0 && ret < unix_len - pos - 1) { char *p; unix_name[pos + 1 + ret] = 0; for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/'; if (!name_len || !redirect || (!strstr( unix_name, "/windows/") && strncmp( unix_name, "windows/", 8 ))) { if (!stat( unix_name, &st )) { if (disposition == FILE_CREATE) return STATUS_OBJECT_NAME_COLLISION; return STATUS_SUCCESS; } } } if (!name_len) /* empty name -> drive root doesn't exist */ return STATUS_OBJECT_PATH_NOT_FOUND; if (check_case && !redirect && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE)) return STATUS_OBJECT_NAME_NOT_FOUND; /* now do it component by component */ while (name_len) { const WCHAR *end, *next; BOOLEAN is_win_dir = FALSE; end = name; while (end < name + name_len && !IS_SEPARATOR(*end)) end++; next = end; while (next < name + name_len && IS_SEPARATOR(*next)) next++; name_len -= next - name; /* grow the buffer if needed */ if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2) { char *new_name; unix_len += 2 * MAX_DIR_ENTRY_LEN; if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len ))) return STATUS_NO_MEMORY; unix_name = *buffer = new_name; } status = find_file_in_dir( unix_name, pos, name, end - name, check_case, redirect ? &is_win_dir : NULL ); /* if this is the last element, not finding it is not necessarily fatal */ if (!name_len) { if (status == STATUS_OBJECT_PATH_NOT_FOUND) { status = STATUS_OBJECT_NAME_NOT_FOUND; if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE) { ret = ntdll_wcstoumbs( name, end - name, unix_name + pos + 1, MAX_DIR_ENTRY_LEN + 1, TRUE ); if (ret > 0 && ret <= MAX_DIR_ENTRY_LEN) { unix_name[pos] = '/'; unix_name[pos + 1 + ret] = 0; status = STATUS_NO_SUCH_FILE; break; } } } else if (status == STATUS_SUCCESS && disposition == FILE_CREATE) { status = STATUS_OBJECT_NAME_COLLISION; } } if (status != STATUS_SUCCESS) break; pos += strlen( unix_name + pos ); name = next; if (is_win_dir && (len = get_redirect_path( unix_name, pos, name, name_len, check_case ))) { name += len; name_len -= len; pos += strlen( unix_name + pos ); TRACE( "redirecting -> %s + %s\n", debugstr_a(unix_name), debugstr_w(name) ); } } return status; } /****************************************************************************** * nt_to_unix_file_name_attr */ NTSTATUS nt_to_unix_file_name_attr( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name_ret, UINT disposition ) { static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 }; enum server_fd_type type; int old_cwd, root_fd, needs_close; const WCHAR *name, *p; char *unix_name; int name_len, unix_len; NTSTATUS status; BOOLEAN check_case = !(attr->Attributes & OBJ_CASE_INSENSITIVE); if (!attr->RootDirectory) /* without root dir fall back to normal lookup */ return wine_nt_to_unix_file_name( attr->ObjectName, unix_name_ret, disposition, check_case ); name = attr->ObjectName->Buffer; name_len = attr->ObjectName->Length / sizeof(WCHAR); if (name_len && IS_SEPARATOR(name[0])) return STATUS_INVALID_PARAMETER; /* check for invalid characters */ for (p = name; p < name + name_len; p++) if (*p < 32 || wcschr( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID; unix_len = name_len * 3 + MAX_DIR_ENTRY_LEN + 3; if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len ))) return STATUS_NO_MEMORY; unix_name[0] = '.'; if (!(status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL ))) { if (type != FD_TYPE_DIR) { if (needs_close) close( root_fd ); status = STATUS_BAD_DEVICE_TYPE; } else { RtlEnterCriticalSection( &dir_section ); if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1) { status = lookup_unix_name( name, name_len, &unix_name, unix_len, 1, disposition, check_case ); if (fchdir( old_cwd ) == -1) chdir( "/" ); } else status = FILE_GetNtStatus(); RtlLeaveCriticalSection( &dir_section ); if (old_cwd != -1) close( old_cwd ); if (needs_close) close( root_fd ); } } else if (status == STATUS_OBJECT_TYPE_MISMATCH) status = STATUS_BAD_DEVICE_TYPE; if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE) { TRACE( "%s -> %s\n", debugstr_us(attr->ObjectName), debugstr_a(unix_name) ); unix_name_ret->Buffer = unix_name; unix_name_ret->Length = strlen(unix_name); unix_name_ret->MaximumLength = unix_len; } else { TRACE( "%s not found in %s\n", debugstr_w(name), unix_name ); RtlFreeHeap( GetProcessHeap(), 0, unix_name ); } return status; } /****************************************************************************** * wine_nt_to_unix_file_name (NTDLL.@) Not a Windows API * * Convert a file name from NT namespace to Unix namespace. * * If disposition is not FILE_OPEN or FILE_OVERWRITE, the last path * element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is * returned, but the unix name is still filled in properly. */ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret, UINT disposition, BOOLEAN check_case ) { static const WCHAR unixW[] = {'u','n','i','x'}; static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 }; NTSTATUS status = STATUS_SUCCESS; const WCHAR *name, *p; struct stat st; char *unix_name; int pos, ret, name_len, unix_len, prefix_len; WCHAR prefix[MAX_DIR_ENTRY_LEN + 1]; BOOLEAN is_unix = FALSE; name = nameW->Buffer; name_len = nameW->Length / sizeof(WCHAR); if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD; if (!(pos = get_dos_prefix_len( nameW ))) return STATUS_BAD_DEVICE_TYPE; /* no DOS prefix, assume NT native name */ name += pos; name_len -= pos; if (!name_len) return STATUS_OBJECT_NAME_INVALID; /* check for sub-directory */ for (pos = 0; pos < name_len; pos++) { if (IS_SEPARATOR(name[pos])) break; if (name[pos] < 32 || wcschr( invalid_charsW, name[pos] )) return STATUS_OBJECT_NAME_INVALID; } if (pos > MAX_DIR_ENTRY_LEN) return STATUS_OBJECT_NAME_INVALID; if (pos == name_len) /* no subdir, plain DOS device */ return get_dos_device( name, name_len, unix_name_ret ); prefix_len = pos; memcpy( prefix, name, prefix_len * sizeof(WCHAR) ); prefix[prefix_len] = 0; wcslwr( prefix ); name += prefix_len; name_len -= prefix_len; /* check for invalid characters (all chars except 0 are valid for unix) */ is_unix = (prefix_len == 4 && !memcmp( prefix, unixW, sizeof(unixW) )); if (is_unix) { for (p = name; p < name + name_len; p++) if (!*p) return STATUS_OBJECT_NAME_INVALID; check_case = TRUE; } else { for (p = name; p < name + name_len; p++) if (*p < 32 || wcschr( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID; } unix_len = (prefix_len + name_len) * 3 + MAX_DIR_ENTRY_LEN + 3; unix_len += strlen(config_dir) + sizeof("/dosdevices/"); if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len ))) return STATUS_NO_MEMORY; strcpy( unix_name, config_dir ); strcat( unix_name, "/dosdevices/" ); pos = strlen(unix_name); ret = ntdll_wcstoumbs( prefix, prefix_len, unix_name + pos, unix_len - pos - 1, TRUE ); if (ret <= 0) { RtlFreeHeap( GetProcessHeap(), 0, unix_name ); return STATUS_OBJECT_NAME_INVALID; } pos += ret; /* check if prefix exists (except for DOS drives to avoid extra stat calls) */ if (prefix_len != 2 || prefix[1] != ':') { unix_name[pos] = 0; if (lstat( unix_name, &st ) == -1 && errno == ENOENT) { if (!is_unix) { RtlFreeHeap( GetProcessHeap(), 0, unix_name ); return STATUS_BAD_DEVICE_TYPE; } pos = 0; /* fall back to unix root */ } } status = lookup_unix_name( name, name_len, &unix_name, unix_len, pos, disposition, check_case ); if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE) { TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) ); unix_name_ret->Buffer = unix_name; unix_name_ret->Length = strlen(unix_name); unix_name_ret->MaximumLength = unix_len; } else { TRACE( "%s not found in %s\n", debugstr_w(name), unix_name ); RtlFreeHeap( GetProcessHeap(), 0, unix_name ); } return status; } /****************************************************************** * RtlWow64EnableFsRedirection (NTDLL.@) */ NTSTATUS WINAPI RtlWow64EnableFsRedirection( BOOLEAN enable ) { if (!is_wow64) return STATUS_NOT_IMPLEMENTED; ntdll_get_thread_data()->wow64_redir = enable; return STATUS_SUCCESS; } /****************************************************************** * RtlWow64EnableFsRedirectionEx (NTDLL.@) */ NTSTATUS WINAPI RtlWow64EnableFsRedirectionEx( ULONG disable, ULONG *old_value ) { if (!is_wow64) return STATUS_NOT_IMPLEMENTED; __TRY { *old_value = !ntdll_get_thread_data()->wow64_redir; } __EXCEPT_PAGE_FAULT { return STATUS_ACCESS_VIOLATION; } __ENDTRY ntdll_get_thread_data()->wow64_redir = !disable; return STATUS_SUCCESS; } /****************************************************************** * RtlDoesFileExists_U (NTDLL.@) */ BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name) { UNICODE_STRING nt_name; FILE_BASIC_INFORMATION basic_info; OBJECT_ATTRIBUTES attr; BOOLEAN ret; if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE; attr.Length = sizeof(attr); attr.RootDirectory = 0; attr.ObjectName = &nt_name; attr.Attributes = OBJ_CASE_INSENSITIVE; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; ret = NtQueryAttributesFile(&attr, &basic_info) == STATUS_SUCCESS; RtlFreeUnicodeString( &nt_name ); return ret; } /*********************************************************************** * DIR_unmount_device * * Unmount the specified device. */ NTSTATUS DIR_unmount_device( HANDLE handle ) { NTSTATUS status; int unix_fd, needs_close; if (!(status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL ))) { struct stat st; char *mount_point = NULL; if (fstat( unix_fd, &st ) == -1 || !is_valid_mounted_device( &st )) status = STATUS_INVALID_PARAMETER; else { if ((mount_point = get_device_mount_point( st.st_rdev ))) { #ifdef __APPLE__ static const char umount[] = "diskutil unmount >/dev/null 2>&1 "; #else static const char umount[] = "umount >/dev/null 2>&1 "; #endif char *cmd = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mount_point)+sizeof(umount)); if (cmd) { strcpy( cmd, umount ); strcat( cmd, mount_point ); system( cmd ); RtlFreeHeap( GetProcessHeap(), 0, cmd ); #ifdef linux /* umount will fail to release the loop device since we still have a handle to it, so we release it here */ if (major(st.st_rdev) == LOOP_MAJOR) ioctl( unix_fd, 0x4c01 /*LOOP_CLR_FD*/, 0 ); #endif } RtlFreeHeap( GetProcessHeap(), 0, mount_point ); } } if (needs_close) close( unix_fd ); } return status; } /****************************************************************************** * DIR_get_unix_cwd * * Retrieve the Unix name of the current directory; helper for wine_unix_to_nt_file_name. * Returned value must be freed by caller. */ NTSTATUS DIR_get_unix_cwd( char **cwd ) { int old_cwd, unix_fd, needs_close; CURDIR *curdir; HANDLE handle; NTSTATUS status; RtlAcquirePebLock(); if (NtCurrentTeb()->Tib.SubSystemTib) /* FIXME: hack */ curdir = &((WIN16_SUBSYSTEM_TIB *)NtCurrentTeb()->Tib.SubSystemTib)->curdir; else curdir = &NtCurrentTeb()->Peb->ProcessParameters->CurrentDirectory; if (!(handle = curdir->Handle)) { UNICODE_STRING dirW; OBJECT_ATTRIBUTES attr; IO_STATUS_BLOCK io; if (!RtlDosPathNameToNtPathName_U( curdir->DosPath.Buffer, &dirW, NULL, NULL )) { status = STATUS_OBJECT_NAME_INVALID; goto done; } attr.Length = sizeof(attr); attr.RootDirectory = 0; attr.Attributes = OBJ_CASE_INSENSITIVE; attr.ObjectName = &dirW; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0, FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ); RtlFreeUnicodeString( &dirW ); if (status != STATUS_SUCCESS) goto done; } if ((status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )) == STATUS_SUCCESS) { RtlEnterCriticalSection( &dir_section ); if ((old_cwd = open(".", O_RDONLY)) != -1 && fchdir( unix_fd ) != -1) { unsigned int size = 512; for (;;) { if (!(*cwd = RtlAllocateHeap( GetProcessHeap(), 0, size ))) { status = STATUS_NO_MEMORY; break; } if (getcwd( *cwd, size )) break; RtlFreeHeap( GetProcessHeap(), 0, *cwd ); if (errno != ERANGE) { status = STATUS_OBJECT_PATH_INVALID; break; } size *= 2; } if (fchdir( old_cwd ) == -1) chdir( "/" ); } else status = FILE_GetNtStatus(); RtlLeaveCriticalSection( &dir_section ); if (old_cwd != -1) close( old_cwd ); if (needs_close) close( unix_fd ); } if (!curdir->Handle) NtClose( handle ); done: RtlReleasePebLock(); return status; }