* along with wimlib; if not, see http://www.gnu.org/licenses/.
*/
-#ifndef __WIN32__
-# error "This file contains Windows code"
-#endif
+#ifdef __WIN32__
#include "config.h"
#include <windows.h>
#include <ntdef.h>
#include <wchar.h>
-#include <shlwapi.h> /* shlwapi.h for PathMatchSpecA() */
+#include <shlwapi.h> /* shlwapi.h for PathMatchSpecW() */
#ifdef ERROR /* windows.h defines this */
# undef ERROR
#endif
#include <errno.h>
+#define MAX_GET_SD_ACCESS_DENIED_WARNINGS 1
+#define MAX_GET_SACL_PRIV_NOTHELD_WARNINGS 1
+struct win32_capture_state {
+ unsigned long num_get_sd_access_denied;
+ unsigned long num_get_sacl_priv_notheld;
+};
+#define MAX_SET_SD_ACCESS_DENIED_WARNINGS 1
+#define MAX_SET_SACL_PRIV_NOTHELD_WARNINGS 1
/* Pointers to functions that are not available on all targetted versions of
* Windows (XP and later). NOTE: The WINAPI annotations seem to be important; I
win32_global_init()
{
DWORD err;
- bool warned;
-
if (hKernel32 == NULL) {
DEBUG("Loading Kernel32.dll");
- hKernel32 = LoadLibraryA("Kernel32.dll");
+ hKernel32 = LoadLibraryW(L"Kernel32.dll");
if (hKernel32 == NULL) {
err = GetLastError();
WARNING("Can't load Kernel32.dll");
}
}
-static const char *access_denied_msg =
-" If you are not running this program as the administrator, you may\n"
-" need to do so, so that all data and metadata can be backed up.\n"
-" Otherwise, there may be no way to access the desired data or\n"
-" metadata without taking ownership of the file or directory.\n";
+static const wchar_t *capture_access_denied_msg =
+L" If you are not running this program as the administrator, you may\n"
+ " need to do so, so that all data and metadata can be backed up.\n"
+ " Otherwise, there may be no way to access the desired data or\n"
+ " metadata without taking ownership of the file or directory.\n"
+ ;
+
+static const wchar_t *apply_access_denied_msg =
+L"If you are not running this program as the administrator, you may\n"
+ " need to do so, so that all data and metadata can be extracted\n"
+ " exactly as the origignal copy. However, if you do not care that\n"
+ " the security descriptors are extracted correctly, you could run\n"
+ " `wimlib-imagex apply' with the --no-acls flag instead.\n"
+ ;
#ifdef ENABLE_ERROR_MESSAGES
void
win32_error(u32 err_code)
{
- char *buffer;
+ wchar_t *buffer;
DWORD nchars;
- nchars = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER,
+ nchars = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL, err_code, 0,
- (char*)&buffer, 0, NULL);
+ (wchar_t*)&buffer, 0, NULL);
if (nchars == 0) {
ERROR("Error printing error message! "
"Computer will self-destruct in 3 seconds.");
} else {
- ERROR("Win32 error: %s", buffer);
+ ERROR("Win32 error: %ls", buffer);
LocalFree(buffer);
}
}
}
int
-win32_read_file(const utf16lechar *win32_filename,
+win32_read_file(const wchar_t *filename,
void *handle, u64 offset, size_t size, void *buf)
{
HANDLE h = handle;
if (ReadFile(h, buf, size, &bytesRead, NULL) && bytesRead == size)
return 0;
err = GetLastError();
- ERROR("Error reading \"%ls\"", win32_filename);
+ ERROR("Error reading \"%ls\"", filename);
win32_error(err);
return WIMLIB_ERR_READ;
}
}
static int
-win32_get_short_name(struct wim_dentry *dentry,
- const wchar_t *path_utf16)
+win32_get_short_name(struct wim_dentry *dentry, const wchar_t *path)
{
WIN32_FIND_DATAW dat;
- if (FindFirstFileW(path_utf16, &dat) &&
- dat.cAlternateFileName[0] != L'\0')
- {
- size_t short_name_nbytes = wcslen(dat.cAlternateFileName) * 2;
+ if (FindFirstFileW(path, &dat) && dat.cAlternateFileName[0] != L'\0') {
+ size_t short_name_nbytes = wcslen(dat.cAlternateFileName) *
+ sizeof(wchar_t);
size_t n = short_name_nbytes + sizeof(wchar_t);
dentry->short_name = MALLOC(n);
if (!dentry->short_name)
memcpy(dentry->short_name, dat.cAlternateFileName, n);
dentry->short_name_nbytes = short_name_nbytes;
}
+ /* If we can't read the short filename for some reason, we just ignore
+ * the error and assume the file has no short name. I don't think this
+ * should be an issue, since the short names are essentially obsolete
+ * anyway. */
return 0;
}
static int
win32_get_security_descriptor(struct wim_dentry *dentry,
struct sd_set *sd_set,
- const wchar_t *path_utf16)
+ const wchar_t *path,
+ struct win32_capture_state *state,
+ int add_image_flags)
{
SECURITY_INFORMATION requestedInformation;
DWORD lenNeeded = 0;
BOOL status;
DWORD err;
+ unsigned long n;
requestedInformation = DACL_SECURITY_INFORMATION |
SACL_SECURITY_INFORMATION |
OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION;
+again:
/* Request length of security descriptor */
- status = GetFileSecurityW(path_utf16, requestedInformation,
+ status = GetFileSecurityW(path, requestedInformation,
NULL, 0, &lenNeeded);
err = GetLastError();
if (!status && err == ERROR_INSUFFICIENT_BUFFER) {
DWORD len = lenNeeded;
char buf[len];
- if (GetFileSecurityW(path_utf16, requestedInformation,
+ if (GetFileSecurityW(path, requestedInformation,
(PSECURITY_DESCRIPTOR)buf, len, &lenNeeded))
{
int security_id = sd_set_add_sd(sd_set, buf, len);
}
}
- if (err == ERROR_ACCESS_DENIED) {
- WARNING("Failed to read security descriptor of \"%ls\": "
- "Access denied!\n%s", path_utf16, access_denied_msg);
+ if (add_image_flags & WIMLIB_ADD_IMAGE_FLAG_STRICT_ACLS)
+ goto fail;
+
+ switch (err) {
+ case ERROR_PRIVILEGE_NOT_HELD:
+ if (requestedInformation & SACL_SECURITY_INFORMATION) {
+ n = state->num_get_sacl_priv_notheld++;
+ requestedInformation &= ~SACL_SECURITY_INFORMATION;
+ if (n < MAX_GET_SACL_PRIV_NOTHELD_WARNINGS) {
+ WARNING(
+"We don't have enough privileges to read the full security\n"
+" descriptor of \"%ls\"!\n"
+" Re-trying with SACL omitted.\n", path);
+ } else if (n == MAX_GET_SACL_PRIV_NOTHELD_WARNINGS) {
+ WARNING(
+"Suppressing further privileges not held error messages when reading\n"
+" security descriptors.");
+ }
+ goto again;
+ }
+ /* Fall through */
+ case ERROR_ACCESS_DENIED:
+ n = state->num_get_sd_access_denied++;
+ if (n < MAX_GET_SD_ACCESS_DENIED_WARNINGS) {
+ WARNING("Failed to read security descriptor of \"%ls\": "
+ "Access denied!\n%ls", path, capture_access_denied_msg);
+ } else if (n == MAX_GET_SD_ACCESS_DENIED_WARNINGS) {
+ WARNING("Suppressing further access denied errors messages i"
+ "when reading security descriptors");
+ }
return 0;
- } else {
- ERROR("Win32 API: Failed to read security descriptor of \"%ls\"",
- path_utf16);
+ default:
+fail:
+ ERROR("Failed to read security descriptor of \"%ls\"", path);
win32_error(err);
return WIMLIB_ERR_READ;
}
}
+static int
+win32_build_dentry_tree_recursive(struct wim_dentry **root_ret,
+ wchar_t *path,
+ size_t path_num_chars,
+ struct wim_lookup_table *lookup_table,
+ struct sd_set *sd_set,
+ const struct capture_config *config,
+ int add_image_flags,
+ wimlib_progress_func_t progress_func,
+ struct win32_capture_state *state);
+
/* Reads the directory entries of directory using a Win32 API and recursively
* calls win32_build_dentry_tree() on them. */
static int
win32_recurse_directory(struct wim_dentry *root,
- const mbchar *root_disk_path,
+ wchar_t *dir_path,
+ size_t dir_path_num_chars,
struct wim_lookup_table *lookup_table,
- struct wim_security_data *sd,
+ struct sd_set *sd_set,
const struct capture_config *config,
int add_image_flags,
wimlib_progress_func_t progress_func,
- struct sd_set *sd_set,
- const wchar_t *path_utf16,
- size_t path_utf16_nchars)
+ struct win32_capture_state *state)
{
WIN32_FIND_DATAW dat;
HANDLE hFind;
DWORD err;
int ret;
- {
- /* Begin reading the directory by calling FindFirstFileW.
- * Unlike UNIX opendir(), FindFirstFileW has file globbing built
- * into it. But this isn't what we actually want, so just add a
- * dummy glob to get all entries. */
- wchar_t pattern_buf[path_utf16_nchars + 3];
- memcpy(pattern_buf, path_utf16,
- path_utf16_nchars * sizeof(wchar_t));
- pattern_buf[path_utf16_nchars] = L'/';
- pattern_buf[path_utf16_nchars + 1] = L'*';
- pattern_buf[path_utf16_nchars + 2] = L'\0';
- hFind = FindFirstFileW(pattern_buf, &dat);
- }
+ /* Begin reading the directory by calling FindFirstFileW. Unlike UNIX
+ * opendir(), FindFirstFileW has file globbing built into it. But this
+ * isn't what we actually want, so just add a dummy glob to get all
+ * entries. */
+ dir_path[dir_path_num_chars] = L'/';
+ dir_path[dir_path_num_chars + 1] = L'*';
+ dir_path[dir_path_num_chars + 2] = L'\0';
+ hFind = FindFirstFileW(dir_path, &dat);
+ dir_path[dir_path_num_chars] = L'\0';
+
if (hFind == INVALID_HANDLE_VALUE) {
err = GetLastError();
if (err == ERROR_FILE_NOT_FOUND) {
return 0;
} else {
- ERROR("Win32 API: Failed to read directory \"%s\"",
- root_disk_path);
+ ERROR("Failed to read directory \"%ls\"", dir_path);
win32_error(err);
return WIMLIB_ERR_READ;
}
ret = 0;
do {
/* Skip . and .. entries */
- if (!(dat.cFileName[0] == cpu_to_le16(L'.') &&
- (dat.cFileName[1] == cpu_to_le16(L'\0') ||
- (dat.cFileName[1] == cpu_to_le16(L'.') &&
- dat.cFileName[2] == cpu_to_le16(L'\0')))))
- {
- struct wim_dentry *child;
-
- mbchar *mbs_name;
- size_t mbs_name_nbytes;
- ret = utf16le_to_mbs(dat.cFileName,
- wcslen(dat.cFileName) * sizeof(wchar_t),
- &mbs_name,
- &mbs_name_nbytes);
- if (ret)
- goto out_find_close;
-
- mbchar name[strlen(root_disk_path) + 1 + mbs_name_nbytes + 1];
- sprintf(name, "%s/%s", root_disk_path, mbs_name);
- FREE(mbs_name);
- ret = win32_build_dentry_tree(&child, name, lookup_table,
- sd, config, add_image_flags,
- progress_func, sd_set);
- if (ret)
- goto out_find_close;
- if (child)
- dentry_add_child(root, child);
- }
+ if (dat.cFileName[0] == L'.' &&
+ (dat.cFileName[1] == L'\0' ||
+ (dat.cFileName[1] == L'.' &&
+ dat.cFileName[2] == L'\0')))
+ continue;
+ size_t filename_len = wcslen(dat.cFileName);
+
+ dir_path[dir_path_num_chars] = L'/';
+ wmemcpy(dir_path + dir_path_num_chars + 1,
+ dat.cFileName,
+ filename_len + 1);
+
+ struct wim_dentry *child;
+ size_t path_len = dir_path_num_chars + 1 + filename_len;
+ ret = win32_build_dentry_tree_recursive(&child,
+ dir_path,
+ path_len,
+ lookup_table,
+ sd_set,
+ config,
+ add_image_flags,
+ progress_func,
+ state);
+ dir_path[dir_path_num_chars] = L'\0';
+ if (ret)
+ goto out_find_close;
+ if (child)
+ dentry_add_child(root, child);
} while (FindNextFileW(hFind, &dat));
err = GetLastError();
if (err != ERROR_NO_MORE_FILES) {
- ERROR("Win32 API: Failed to read directory \"%s\"", root_disk_path);
+ ERROR("Failed to read directory \"%ls\"", dir_path);
win32_error(err);
if (ret == 0)
ret = WIMLIB_ERR_READ;
win32_capture_reparse_point(HANDLE hFile,
struct wim_inode *inode,
struct wim_lookup_table *lookup_table,
- const mbchar *path)
+ const wchar_t *path)
{
/* "Reparse point data, including the tag and optional GUID,
* cannot exceed 16 kilobytes." - MSDN */
NULL))
{
DWORD err = GetLastError();
- ERROR("Win32 API: Failed to get reparse data of \"%s\"", path);
+ ERROR("Failed to get reparse data of \"%ls\"", path);
win32_error(err);
return WIMLIB_ERR_READ;
}
if (bytesReturned < 8) {
- ERROR("Reparse data on \"%s\" is invalid", path);
+ ERROR("Reparse data on \"%ls\" is invalid", path);
return WIMLIB_ERR_READ;
}
inode->i_reparse_tag = le32_to_cpu(*(u32*)reparse_point_buf);
- return inode_add_ads_with_data(inode, "",
+ return inode_add_ads_with_data(inode, L"",
reparse_point_buf + 8,
bytesReturned - 8, lookup_table);
}
* wim_lookup_table_entry' in memory for it, or uses an existing 'struct
* wim_lookup_table_entry' for an identical stream.
*
- * @path_utf16: Path to the file (UTF-16LE).
+ * @path: Path to the file (UTF-16LE).
*
- * @path_utf16_nchars: Number of 2-byte characters in @path_utf16.
+ * @path_num_chars: Number of 2-byte characters in @path.
*
* @inode: WIM inode to save the stream into.
*
* Returns 0 on success; nonzero on failure.
*/
static int
-win32_capture_stream(const wchar_t *path_utf16,
- size_t path_utf16_nchars,
+win32_capture_stream(const wchar_t *path,
+ size_t path_num_chars,
struct wim_inode *inode,
struct wim_lookup_table *lookup_table,
WIN32_FIND_STREAM_DATA *dat)
if (is_named_stream) {
/* Allocate an ADS entry for the named stream. */
ads_entry = inode_add_ads_utf16le(inode, stream_name,
- stream_name_nchars * 2);
+ stream_name_nchars * sizeof(wchar_t));
if (!ads_entry) {
ret = WIMLIB_ERR_NOMEM;
goto out;
* begin with an explicit "./" so that, for example, a file t:ads, where
* :ads is the part we added, is not interpreted as a file on the t:
* drive. */
- spath_nchars = path_utf16_nchars;
+ spath_nchars = path_num_chars;
relpath_prefix = L"";
colonchar = L"";
if (is_named_stream) {
spath_nchars += 1 + stream_name_nchars;
colonchar = L":";
- if (path_utf16_nchars == 1 &&
- path_utf16[0] != cpu_to_le16('/') &&
- path_utf16[0] != cpu_to_le16('\\'))
+ if (path_num_chars == 1 &&
+ path[0] != L'/' &&
+ path[0] != L'\\')
{
spath_nchars += 2;
relpath_prefix = L"./";
spath_buf_nbytes = (spath_nchars + 1) * sizeof(wchar_t);
spath = MALLOC(spath_buf_nbytes);
- swprintf(spath, spath_buf_nbytes, L"%ls%ls%ls%ls",
- relpath_prefix, path_utf16, colonchar, stream_name);
+ swprintf(spath, L"%ls%ls%ls%ls",
+ relpath_prefix, path, colonchar, stream_name);
ret = win32_sha1sum(spath, hash);
if (ret) {
err = GetLastError();
- ERROR("Win32 API: Failed to read \"%ls\" to calculate SHA1sum",
- spath);
+ ERROR("Failed to read \"%ls\" to calculate SHA1sum", spath);
win32_error(err);
goto out_free_spath;
}
ret = WIMLIB_ERR_NOMEM;
goto out_free_spath;
}
- lte->win32_file_on_disk = spath;
- lte->file_on_disk_fp = INVALID_HANDLE_VALUE;
+ lte->file_on_disk = spath;
+ lte->win32_file_on_disk_fp = INVALID_HANDLE_VALUE;
spath = NULL;
lte->resource_location = RESOURCE_WIN32;
lte->resource_entry.original_size = (uint64_t)dat->StreamSize.QuadPart;
out:
return ret;
out_invalid_stream_name:
- ERROR("Invalid stream name: \"%ls:%ls\"", path_utf16, dat->cStreamName);
+ ERROR("Invalid stream name: \"%ls:%ls\"", path, dat->cStreamName);
ret = WIMLIB_ERR_READ;
goto out;
}
/* Scans a Win32 file for unnamed and named data streams (not reparse point
* streams).
*
- * @path_utf16: Path to the file (UTF-16LE).
+ * @path: Path to the file (UTF-16LE).
*
- * @path_utf16_nchars: Number of 2-byte characters in @path_utf16.
+ * @path_num_chars: Number of 2-byte characters in @path.
*
* @inode: WIM inode to save the stream into.
*
* Returns 0 on success; nonzero on failure.
*/
static int
-win32_capture_streams(const wchar_t *path_utf16,
- size_t path_utf16_nchars,
+win32_capture_streams(const wchar_t *path,
+ size_t path_num_chars,
struct wim_inode *inode,
struct wim_lookup_table *lookup_table,
u64 file_size)
if (win32func_FindFirstStreamW == NULL)
goto unnamed_only;
- hFind = win32func_FindFirstStreamW(path_utf16, FindStreamInfoStandard, &dat, 0);
+ hFind = win32func_FindFirstStreamW(path, FindStreamInfoStandard, &dat, 0);
if (hFind == INVALID_HANDLE_VALUE) {
err = GetLastError();
return 0;
} else {
if (err == ERROR_ACCESS_DENIED) {
- WARNING("Failed to look up data streams of \"%ls\": "
- "Access denied!\n%s", path_utf16,
- access_denied_msg);
+ /* XXX This maybe should be an error. */
+ WARNING("Failed to look up data streams "
+ "of \"%ls\": Access denied!\n%ls",
+ path, capture_access_denied_msg);
return 0;
} else {
- ERROR("Win32 API: Failed to look up data streams of \"%ls\"",
- path_utf16);
+ ERROR("Failed to look up data streams "
+ "of \"%ls\"", path);
win32_error(err);
return WIMLIB_ERR_READ;
}
}
}
do {
- ret = win32_capture_stream(path_utf16,
- path_utf16_nchars,
+ ret = win32_capture_stream(path,
+ path_num_chars,
inode, lookup_table,
&dat);
if (ret)
} while (win32func_FindNextStreamW(hFind, &dat));
err = GetLastError();
if (err != ERROR_HANDLE_EOF) {
- ERROR("Win32 API: Error reading data streams from \"%ls\"", path_utf16);
+ ERROR("Win32 API: Error reading data streams from \"%ls\"", path);
win32_error(err);
ret = WIMLIB_ERR_READ;
}
FindClose(hFind);
return ret;
unnamed_only:
+ /* FindFirstStreamW() API is not available. Only capture the unnamed
+ * data stream. */
if (inode->i_attributes &
(FILE_ATTRIBUTE_REPARSE_POINT | FILE_ATTRIBUTE_DIRECTORY))
{
ret = 0;
} else {
+ /* Just create our own WIN32_FIND_STREAM_DATA for an unnamed
+ * stream to reduce the code to a call to the
+ * already-implemented win32_capture_stream() */
wcscpy(dat.cStreamName, L"::$DATA");
dat.StreamSize.QuadPart = file_size;
- ret = win32_capture_stream(path_utf16,
- path_utf16_nchars,
+ ret = win32_capture_stream(path,
+ path_num_chars,
inode, lookup_table,
&dat);
}
return ret;
}
-/* Win32 version of capturing a directory tree */
-int
-win32_build_dentry_tree(struct wim_dentry **root_ret,
- const mbchar *root_disk_path,
- struct wim_lookup_table *lookup_table,
- struct wim_security_data *sd,
- const struct capture_config *config,
- int add_image_flags,
- wimlib_progress_func_t progress_func,
- void *extra_arg)
+static int
+win32_build_dentry_tree_recursive(struct wim_dentry **root_ret,
+ wchar_t *path,
+ size_t path_num_chars,
+ struct wim_lookup_table *lookup_table,
+ struct sd_set *sd_set,
+ const struct capture_config *config,
+ int add_image_flags,
+ wimlib_progress_func_t progress_func,
+ struct win32_capture_state *state)
{
struct wim_dentry *root = NULL;
- int ret = 0;
struct wim_inode *inode;
-
- wchar_t *path_utf16;
- size_t path_utf16_nbytes;
- size_t path_utf16_nchars;
- struct sd_set *sd_set;
DWORD err;
u64 file_size;
+ int ret = 0;
- if (exclude_path(root_disk_path, config, true)) {
+ if (exclude_path(path, path_num_chars, config, true)) {
if (add_image_flags & WIMLIB_ADD_IMAGE_FLAG_ROOT) {
ERROR("Cannot exclude the root directory from capture");
ret = WIMLIB_ERR_INVALID_CAPTURE_CONFIG;
goto out;
}
- if ((add_image_flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE)
+ if ((add_image_flags & WIMLIB_ADD_IMAGE_FLAG_EXCLUDE_VERBOSE)
&& progress_func)
{
union wimlib_progress_info info;
- info.scan.cur_path = root_disk_path;
+ info.scan.cur_path = path;
info.scan.excluded = true;
progress_func(WIMLIB_PROGRESS_MSG_SCAN_DENTRY, &info);
}
&& progress_func)
{
union wimlib_progress_info info;
- info.scan.cur_path = root_disk_path;
+ info.scan.cur_path = path;
info.scan.excluded = false;
progress_func(WIMLIB_PROGRESS_MSG_SCAN_DENTRY, &info);
}
- if (extra_arg == NULL) {
- sd_set = alloca(sizeof(struct sd_set));
- sd_set->rb_root.rb_node = NULL,
- sd_set->sd = sd;
- } else {
- sd_set = extra_arg;
- }
-
- ret = mbs_to_utf16le(root_disk_path, strlen(root_disk_path),
- &path_utf16, &path_utf16_nbytes);
- if (ret)
- goto out_destroy_sd_set;
- path_utf16_nchars = path_utf16_nbytes / sizeof(wchar_t);
-
- HANDLE hFile = win32_open_existing_file(path_utf16,
+ HANDLE hFile = win32_open_existing_file(path,
FILE_READ_DATA | FILE_READ_ATTRIBUTES);
if (hFile == INVALID_HANDLE_VALUE) {
err = GetLastError();
- ERROR("Win32 API: Failed to open \"%s\"", root_disk_path);
+ ERROR("Win32 API: Failed to open \"%ls\"", path);
win32_error(err);
ret = WIMLIB_ERR_OPEN;
- goto out_free_path_utf16;
+ goto out;
}
BY_HANDLE_FILE_INFORMATION file_info;
if (!GetFileInformationByHandle(hFile, &file_info)) {
err = GetLastError();
- ERROR("Win32 API: Failed to get file information for \"%s\"",
- root_disk_path);
+ ERROR("Win32 API: Failed to get file information for \"%ls\"",
+ path);
win32_error(err);
ret = WIMLIB_ERR_STAT;
goto out_close_handle;
}
/* Create a WIM dentry */
- ret = new_dentry_with_timeless_inode(path_basename(root_disk_path), &root);
+ ret = new_dentry_with_timeless_inode(path_basename_with_len(path, path_num_chars),
+ &root);
if (ret)
goto out_close_handle;
add_image_flags &= ~(WIMLIB_ADD_IMAGE_FLAG_ROOT | WIMLIB_ADD_IMAGE_FLAG_SOURCE);
/* Get DOS name and security descriptor (if any). */
- ret = win32_get_short_name(root, path_utf16);
+ ret = win32_get_short_name(root, path);
if (ret)
goto out_close_handle;
if (!(add_image_flags & WIMLIB_ADD_IMAGE_FLAG_NO_ACLS)) {
- ret = win32_get_security_descriptor(root, sd_set, path_utf16);
+ ret = win32_get_security_descriptor(root, sd_set, path, state,
+ add_image_flags);
if (ret)
goto out_close_handle;
}
/* But first... directories may have alternate data streams that
* need to be captured. */
- ret = win32_capture_streams(path_utf16,
- path_utf16_nchars,
+ ret = win32_capture_streams(path,
+ path_num_chars,
inode,
lookup_table,
file_size);
if (ret)
goto out_close_handle;
ret = win32_recurse_directory(root,
- root_disk_path,
+ path,
+ path_num_chars,
lookup_table,
- sd,
+ sd_set,
config,
add_image_flags,
progress_func,
- sd_set,
- path_utf16,
- path_utf16_nchars);
+ state);
} else if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
- /* Reparse point: save the reparse tag and data */
+ /* Reparse point: save the reparse tag and data. Alternate data
+ * streams are not captured, if it's even possible for a reparse
+ * point to have alternate data streams... */
ret = win32_capture_reparse_point(hFile,
inode,
lookup_table,
- root_disk_path);
+ path);
} else {
/* Not a directory, not a reparse point; capture the default
* file contents and any alternate data streams. */
- ret = win32_capture_streams(path_utf16,
- path_utf16_nchars,
+ ret = win32_capture_streams(path,
+ path_num_chars,
inode,
lookup_table,
file_size);
}
out_close_handle:
CloseHandle(hFile);
-out_free_path_utf16:
- FREE(path_utf16);
-out_destroy_sd_set:
- if (extra_arg == NULL)
- destroy_sd_set(sd_set);
out:
if (ret == 0)
*root_ret = root;
return ret;
}
-/* Replacement for POSIX fnmatch() (partial functionality only) */
+static void
+win32_do_capture_warnings(const struct win32_capture_state *state,
+ int add_image_flags)
+{
+ if (state->num_get_sacl_priv_notheld == 0 &&
+ state->num_get_sd_access_denied == 0)
+ return;
+
+ WARNING("");
+ WARNING("Built dentry tree successfully, but with the following problem(s):");
+ if (state->num_get_sacl_priv_notheld != 0) {
+ WARNING("Could not capture SACL (System Access Control List)\n"
+ " on %lu files or directories.",
+ state->num_get_sacl_priv_notheld);
+ }
+ if (state->num_get_sd_access_denied != 0) {
+ WARNING("Could not capture security descriptor at all\n"
+ " on %lu files or directories.",
+ state->num_get_sd_access_denied);
+ }
+ WARNING(
+ "Try running the program as the Administrator to make sure all the\n"
+" desired metadata has been captured exactly. However, if you\n"
+" do not care about capturing security descriptors correctly, then\n"
+" nothing more needs to be done%ls\n",
+ (add_image_flags & WIMLIB_ADD_IMAGE_FLAG_NO_ACLS) ? L"." :
+ L", although you might consider\n"
+" passing the --no-acls flag to `wimlib-imagex capture' or\n"
+" `wimlib-imagex append' to explicitly capture no security\n"
+" descriptors.\n");
+}
+
+/* Win32 version of capturing a directory tree */
int
-fnmatch(const char *pattern, const char *string, int flags)
+win32_build_dentry_tree(struct wim_dentry **root_ret,
+ const wchar_t *root_disk_path,
+ struct wim_lookup_table *lookup_table,
+ struct sd_set *sd_set,
+ const struct capture_config *config,
+ int add_image_flags,
+ wimlib_progress_func_t progress_func,
+ void *extra_arg)
{
- if (PathMatchSpecA(string, pattern))
- return 0;
- else
- return FNM_NOMATCH;
+ size_t path_nchars;
+ wchar_t *path;
+ int ret;
+ struct win32_capture_state state;
+
+ path_nchars = wcslen(root_disk_path);
+ if (path_nchars > 32767)
+ return WIMLIB_ERR_INVALID_PARAM;
+
+ /* There is no check for overflow later when this buffer is being used!
+ * But the max path length on NTFS is 32767 characters, and paths need
+ * to be written specially to even go past 260 characters, so we should
+ * be okay with 32770 characters. */
+ path = MALLOC(32770 * sizeof(wchar_t));
+ if (!path)
+ return WIMLIB_ERR_NOMEM;
+
+ wmemcpy(path, root_disk_path, path_nchars + 1);
+
+ memset(&state, 0, sizeof(state));
+ ret = win32_build_dentry_tree_recursive(root_ret,
+ path,
+ path_nchars,
+ lookup_table,
+ sd_set,
+ config,
+ add_image_flags,
+ progress_func,
+ &state);
+ FREE(path);
+ if (ret == 0)
+ win32_do_capture_warnings(&state, add_image_flags);
+ return ret;
}
static int
return 0;
}
+/*
+ * Sets the security descriptor on an extracted file.
+ */
+static int
+win32_set_security_data(const struct wim_inode *inode,
+ const wchar_t *path,
+ struct apply_args *args)
+{
+ PSECURITY_DESCRIPTOR descriptor;
+ unsigned long n;
+ DWORD err;
+
+ descriptor = wim_const_security_data(args->w)->descriptors[inode->i_security_id];
+
+ SECURITY_INFORMATION securityInformation = DACL_SECURITY_INFORMATION |
+ SACL_SECURITY_INFORMATION |
+ OWNER_SECURITY_INFORMATION |
+ GROUP_SECURITY_INFORMATION;
+again:
+ if (SetFileSecurityW(path, securityInformation, descriptor))
+ return 0;
+ err = GetLastError();
+ if (args->extract_flags & WIMLIB_EXTRACT_FLAG_STRICT_ACLS)
+ goto fail;
+ switch (err) {
+ case ERROR_PRIVILEGE_NOT_HELD:
+ if (securityInformation & SACL_SECURITY_INFORMATION) {
+ n = args->num_set_sacl_priv_notheld++;
+ securityInformation &= ~SACL_SECURITY_INFORMATION;
+ if (n < MAX_SET_SACL_PRIV_NOTHELD_WARNINGS) {
+ WARNING(
+"We don't have enough privileges to set the full security\n"
+" descriptor on \"%ls\"!\n", path);
+ if (args->num_set_sd_access_denied +
+ args->num_set_sacl_priv_notheld == 1)
+ {
+ WARNING("%ls", apply_access_denied_msg);
+ }
+ WARNING("Re-trying with SACL omitted.\n", path);
+ } else if (n == MAX_GET_SACL_PRIV_NOTHELD_WARNINGS) {
+ WARNING(
+"Suppressing further 'privileges not held' error messages when setting\n"
+" security descriptors.");
+ }
+ goto again;
+ }
+ /* Fall through */
+ case ERROR_INVALID_OWNER:
+ case ERROR_ACCESS_DENIED:
+ n = args->num_set_sd_access_denied++;
+ if (n < MAX_SET_SD_ACCESS_DENIED_WARNINGS) {
+ WARNING("Failed to set security descriptor on \"%ls\": "
+ "Access denied!\n", path);
+ if (args->num_set_sd_access_denied +
+ args->num_set_sacl_priv_notheld == 1)
+ {
+ WARNING("%ls", apply_access_denied_msg);
+ }
+ } else if (n == MAX_SET_SD_ACCESS_DENIED_WARNINGS) {
+ WARNING(
+"Suppressing further access denied error messages when setting\n"
+" security descriptors");
+ }
+ return 0;
+ default:
+fail:
+ ERROR("Failed to set security descriptor on \"%ls\"", path);
+ win32_error(err);
+ return WIMLIB_ERR_WRITE;
+ }
+}
+
static int
win32_extract_chunk(const void *buf, size_t len, u64 offset, void *arg)
win32_extract_chunk, hStream);
}
+static bool
+path_is_root_of_drive(const wchar_t *path)
+{
+ if (!*path)
+ return false;
+
+ if (*path != L'/' && *path != L'\\') {
+ if (*(path + 1) == L':')
+ path += 2;
+ else
+ return false;
+ }
+ while (*path == L'/' || *path == L'\\')
+ path++;
+ return (*path == L'\0');
+}
+
static int
win32_extract_stream(const struct wim_inode *inode,
const wchar_t *path,
const wchar_t *stream_name_utf16,
- struct wim_lookup_table_entry *lte,
- const struct wim_security_data *security_data)
+ struct wim_lookup_table_entry *lte)
{
wchar_t *stream_path;
HANDLE h;
DWORD err;
DWORD creationDisposition = CREATE_ALWAYS;
- SECURITY_ATTRIBUTES *secattr;
-
- if (security_data && inode->i_security_id != -1) {
- secattr = alloca(sizeof(*secattr));
- secattr->nLength = sizeof(*secattr);
- secattr->lpSecurityDescriptor = security_data->descriptors[inode->i_security_id];
- secattr->bInheritHandle = FALSE;
- } else {
- secattr = NULL;
- }
-
if (stream_name_utf16) {
/* Named stream. Create a buffer that contains the UTF-16LE
* string [.\]@path:@stream_name_utf16. This is needed to
prefix = L"";
}
stream_path = alloca((stream_path_nchars + 1) * sizeof(wchar_t));
- swprintf(stream_path, stream_path_nchars + 1, L"%ls%ls:%ls",
+ swprintf(stream_path, L"%ls%ls:%ls",
prefix, path, stream_name_utf16);
} else {
/* Unnamed stream; its path is just the path to the file itself.
* the call to CreateFileW() will merely open the directory that
* was already created rather than creating a new file. */
if (inode->i_attributes & FILE_ATTRIBUTE_DIRECTORY) {
- if (!CreateDirectoryW(stream_path, secattr)) {
+ if (!CreateDirectoryW(stream_path, NULL)) {
err = GetLastError();
- if (err != ERROR_ALREADY_EXISTS) {
+ switch (err) {
+ case ERROR_ALREADY_EXISTS:
+ break;
+ case ERROR_ACCESS_DENIED:
+ if (path_is_root_of_drive(path))
+ break;
+ /* Fall through */
+ default:
ERROR("Failed to create directory \"%ls\"",
stream_path);
win32_error(err);
h = CreateFileW(stream_path,
GENERIC_WRITE,
0,
- secattr,
+ NULL,
creationDisposition,
FILE_FLAG_OPEN_REPARSE_POINT |
FILE_FLAG_BACKUP_SEMANTICS |
*/
static int
win32_extract_streams(const struct wim_inode *inode,
- const wchar_t *path, u64 *completed_bytes_p,
- const struct wim_security_data *security_data)
+ const wchar_t *path, u64 *completed_bytes_p)
{
struct wim_lookup_table_entry *unnamed_lte;
int ret;
unnamed_lte = inode_unnamed_lte_resolved(inode);
- ret = win32_extract_stream(inode, path, NULL, unnamed_lte,
- security_data);
+ ret = win32_extract_stream(inode, path, NULL, unnamed_lte);
if (ret)
goto out;
if (unnamed_lte)
ret = win32_extract_stream(inode,
path,
ads_entry->stream_name,
- ads_entry->lte,
- NULL);
+ ads_entry->lte);
if (ret)
break;
if (ads_entry->lte)
/* Extract a file, directory, reparse point, or hard link to an
* already-extracted file using the Win32 API */
-int win32_do_apply_dentry(const mbchar *output_path,
- size_t output_path_nbytes,
- struct wim_dentry *dentry,
- struct apply_args *args)
+int
+win32_do_apply_dentry(const wchar_t *output_path,
+ size_t output_path_num_chars,
+ struct wim_dentry *dentry,
+ struct apply_args *args)
{
- wchar_t *utf16le_path;
- size_t utf16le_path_nbytes;
- DWORD err;
int ret;
struct wim_inode *inode = dentry->d_inode;
-
- ret = mbs_to_utf16le(output_path, output_path_nbytes,
- &utf16le_path, &utf16le_path_nbytes);
- if (ret)
- return ret;
+ DWORD err;
if (inode->i_nlink > 1 && inode->i_extracted_file != NULL) {
/* Linked file, with another name already extracted. Create a
* hard link. */
DEBUG("Creating hard link \"%ls => %ls\"",
- utf16le_path, inode->i_extracted_file);
- if (!CreateHardLinkW(utf16le_path, inode->i_extracted_file, NULL))
- {
+ output_path, inode->i_extracted_file);
+ if (!CreateHardLinkW(output_path, inode->i_extracted_file, NULL)) {
err = GetLastError();
ERROR("Can't create hard link \"%ls => %ls\"",
- utf16le_path, inode->i_extracted_file);
- ret = WIMLIB_ERR_LINK;
+ output_path, inode->i_extracted_file);
win32_error(err);
+ return WIMLIB_ERR_LINK;
}
} else {
/* Create the file, directory, or reparse point, and extract the
* data streams. */
- const struct wim_security_data *security_data;
- if (args->extract_flags & WIMLIB_EXTRACT_FLAG_NOACLS)
- security_data = NULL;
- else
- security_data = wim_const_security_data(args->w);
-
- ret = win32_extract_streams(inode, utf16le_path,
- &args->progress.extract.completed_bytes,
- security_data);
+ ret = win32_extract_streams(inode, output_path,
+ &args->progress.extract.completed_bytes);
if (ret)
- goto out_free_utf16_path;
+ return ret;
+ if (inode->i_security_id >= 0 &&
+ !(args->extract_flags & WIMLIB_EXTRACT_FLAG_NO_ACLS))
+ {
+ ret = win32_set_security_data(inode, output_path, args);
+ if (ret)
+ return ret;
+ }
if (inode->i_nlink > 1) {
/* Save extracted path for a later call to
* CreateHardLinkW() if this inode has multiple links.
* */
- inode->i_extracted_file = utf16le_path;
- goto out;
+ inode->i_extracted_file = WSTRDUP(output_path);
+ if (!inode->i_extracted_file)
+ ret = WIMLIB_ERR_NOMEM;
}
}
-out_free_utf16_path:
- FREE(utf16le_path);
-out:
- return ret;
+ return 0;
}
/* Set timestamps on an extracted file using the Win32 API */
int
-win32_do_apply_dentry_timestamps(const mbchar *output_path,
- size_t output_path_nbytes,
+win32_do_apply_dentry_timestamps(const wchar_t *path,
+ size_t path_num_chars,
const struct wim_dentry *dentry,
const struct apply_args *args)
{
- /* Win32 */
- wchar_t *utf16le_path;
- size_t utf16le_path_nbytes;
DWORD err;
HANDLE h;
- int ret;
const struct wim_inode *inode = dentry->d_inode;
- ret = mbs_to_utf16le(output_path, output_path_nbytes,
- &utf16le_path, &utf16le_path_nbytes);
- if (ret)
- return ret;
-
- DEBUG("Opening \"%s\" to set timestamps", output_path);
- h = win32_open_existing_file(utf16le_path, FILE_WRITE_ATTRIBUTES);
-
- if (h == INVALID_HANDLE_VALUE)
+ DEBUG("Opening \"%ls\" to set timestamps", path);
+ h = win32_open_existing_file(path, FILE_WRITE_ATTRIBUTES);
+ if (h == INVALID_HANDLE_VALUE) {
err = GetLastError();
- FREE(utf16le_path);
- if (h == INVALID_HANDLE_VALUE)
goto fail;
+ }
FILETIME creationTime = {.dwLowDateTime = inode->i_creation_time & 0xffffffff,
.dwHighDateTime = inode->i_creation_time >> 32};
FILETIME lastWriteTime = {.dwLowDateTime = inode->i_last_write_time & 0xffffffff,
.dwHighDateTime = inode->i_last_write_time >> 32};
- DEBUG("Calling SetFileTime() on \"%s\"", output_path);
+ DEBUG("Calling SetFileTime() on \"%ls\"", path);
if (!SetFileTime(h, &creationTime, &lastAccessTime, &lastWriteTime)) {
err = GetLastError();
CloseHandle(h);
goto fail;
}
- DEBUG("Closing \"%s\"", output_path);
+ DEBUG("Closing \"%ls\"", path);
if (!CloseHandle(h)) {
err = GetLastError();
goto fail;
}
goto out;
fail:
- /* Only warn if setting timestamps failed. */
- WARNING("Can't set timestamps on \"%s\"", output_path);
+ /* Only warn if setting timestamps failed; still return 0. */
+ WARNING("Can't set timestamps on \"%ls\"", path);
win32_error(err);
out:
return 0;
int
fsync(int fd)
{
- HANDLE h = (HANDLE)_get_osfhandle(fd);
+ DWORD err;
+ HANDLE h;
+
+ h = (HANDLE)_get_osfhandle(fd);
if (h == INVALID_HANDLE_VALUE) {
+ err = GetLastError();
ERROR("Could not get Windows handle for file descriptor");
- win32_error(GetLastError());
+ win32_error(err);
errno = EBADF;
return -1;
}
if (!FlushFileBuffers(h)) {
+ err = GetLastError();
ERROR("Could not flush file buffers to disk");
- win32_error(GetLastError());
+ win32_error(err);
errno = EIO;
return -1;
}
/* Replacement for POSIX-2008 realpath(). Warning: partial functionality only
* (resolved_path must be NULL). Also I highly doubt that GetFullPathName
* really does the right thing under all circumstances. */
-mbchar *
-realpath(const mbchar *path, mbchar *resolved_path)
+wchar_t *
+realpath(const wchar_t *path, wchar_t *resolved_path)
{
DWORD ret;
wimlib_assert(resolved_path == NULL);
+ DWORD err;
- ret = GetFullPathNameA(path, 0, NULL, NULL);
- if (!ret)
+ ret = GetFullPathNameW(path, 0, NULL, NULL);
+ if (!ret) {
+ err = GetLastError();
goto fail_win32;
+ }
- resolved_path = MALLOC(ret);
+ resolved_path = TMALLOC(ret);
if (!resolved_path)
- goto fail;
- ret = GetFullPathNameA(path, ret, resolved_path, NULL);
+ goto out;
+ ret = GetFullPathNameW(path, ret, resolved_path, NULL);
if (!ret) {
+ err = GetLastError();
free(resolved_path);
+ resolved_path = NULL;
goto fail_win32;
}
- return resolved_path;
+ goto out;
fail_win32:
- win32_error(GetLastError());
-fail:
- return NULL;
-}
-
-char *
-nl_langinfo(nl_item item)
-{
- wimlib_assert(item == CODESET);
- static char buf[64];
- strcpy(buf, "Unknown");
- return buf;
+ win32_error(err);
+ errno = -1;
+out:
+ return resolved_path;
}
-/* rename() on Windows fails if the destination file exists. Fix it. */
+/* rename() on Windows fails if the destination file exists. And we need to
+ * make it work on wide characters. Fix it. */
int
-rename_replacement(const char *oldpath, const char *newpath)
+win32_rename_replacement(const wchar_t *oldpath, const wchar_t *newpath)
{
- if (MoveFileExA(oldpath, newpath, MOVEFILE_REPLACE_EXISTING)) {
+ if (MoveFileExW(oldpath, newpath, MOVEFILE_REPLACE_EXISTING)) {
return 0;
} else {
/* As usual, the possible error values are not documented */
DWORD err = GetLastError();
- ERROR("MoveFileExA(): Can't rename \"%s\" to \"%s\"",
+ ERROR("MoveFileEx(): Can't rename \"%ls\" to \"%ls\"",
oldpath, newpath);
win32_error(err);
- errno = 0;
+ errno = -1;
return -1;
}
}
+
+/* Replacement for POSIX fnmatch() (partial functionality only) */
+int
+fnmatch(const wchar_t *pattern, const wchar_t *string, int flags)
+{
+ if (PathMatchSpecW(string, pattern))
+ return 0;
+ else
+ return FNM_NOMATCH;
+}
+
+/* truncate() replacement */
+int
+win32_truncate_replacement(const wchar_t *path, off_t size)
+{
+ DWORD err = NO_ERROR;
+ LARGE_INTEGER liOffset;
+
+ HANDLE h = win32_open_existing_file(path, GENERIC_WRITE);
+ if (h == INVALID_HANDLE_VALUE)
+ goto fail;
+
+ liOffset.QuadPart = size;
+ if (!SetFilePointerEx(h, liOffset, NULL, FILE_BEGIN))
+ goto fail_close_handle;
+
+ if (!SetEndOfFile(h))
+ goto fail_close_handle;
+ CloseHandle(h);
+ return 0;
+
+fail_close_handle:
+ err = GetLastError();
+ CloseHandle(h);
+fail:
+ if (err == NO_ERROR)
+ err = GetLastError();
+ ERROR("Can't truncate \"%ls\" to %"PRIu64" bytes", path, size);
+ win32_error(err);
+ errno = -1;
+ return -1;
+}
+
+#endif /* __WIN32__ */
git://wimlib.net / wimlib / blobdiff