*/
/*
- * Copyright (C) 2013 Eric Biggers
+ * Copyright (C) 2013, 2014 Eric Biggers
*
* This file is part of wimlib, a library for working with WIM files.
*
#include "wimlib/win32_common.h"
#include "wimlib/capture.h"
+#include "wimlib/dentry.h"
+#include "wimlib/encoding.h"
#include "wimlib/endianness.h"
#include "wimlib/error.h"
#include "wimlib/lookup_table.h"
#include "wimlib/paths.h"
#include "wimlib/reparse.h"
-#ifdef WITH_NTDLL
-# include <winternl.h>
-# include <ntstatus.h>
-
-NTSTATUS WINAPI
-NtQuerySecurityObject(HANDLE handle,
- SECURITY_INFORMATION SecurityInformation,
- PSECURITY_DESCRIPTOR SecurityDescriptor,
- ULONG Length,
- PULONG LengthNeeded);
-NTSTATUS WINAPI
-NtQueryDirectoryFile(HANDLE FileHandle,
- HANDLE Event,
- PIO_APC_ROUTINE ApcRoutine,
- PVOID ApcContext,
- PIO_STATUS_BLOCK IoStatusBlock,
- PVOID FileInformation,
- ULONG Length,
- FILE_INFORMATION_CLASS FileInformationClass,
- BOOLEAN ReturnSingleEntry,
- PUNICODE_STRING FileName,
- BOOLEAN RestartScan);
-#endif
-
-#define MAX_GET_SD_ACCESS_DENIED_WARNINGS 1
-#define MAX_GET_SACL_PRIV_NOTHELD_WARNINGS 1
-#define MAX_CAPTURE_LONG_PATH_WARNINGS 5
-
struct win32_capture_state {
unsigned long num_get_sd_access_denied;
unsigned long num_get_sacl_priv_notheld;
unsigned long num_long_path_warnings;
};
-
-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"
- ;
-
int
read_win32_file_prefix(const struct wim_lookup_table_entry *lte,
u64 size,
consume_data_callback_t cb,
- void *ctx_or_buf,
- int _ignored_flags)
+ void *cb_ctx)
{
int ret = 0;
- void *out_buf;
- DWORD err;
u64 bytes_remaining;
+ u8 buf[BUFFER_SIZE];
- HANDLE hFile = win32_open_file_data_only(lte->file_on_disk);
+ HANDLE hFile = win32_open_existing_file(lte->file_on_disk,
+ FILE_READ_DATA);
if (hFile == INVALID_HANDLE_VALUE) {
set_errno_from_GetLastError();
ERROR_WITH_ERRNO("Failed to open \"%ls\"", lte->file_on_disk);
return WIMLIB_ERR_OPEN;
}
- if (cb)
- out_buf = alloca(WIM_CHUNK_SIZE);
- else
- out_buf = ctx_or_buf;
-
bytes_remaining = size;
while (bytes_remaining) {
DWORD bytesToRead, bytesRead;
- bytesToRead = min(WIM_CHUNK_SIZE, bytes_remaining);
- if (!ReadFile(hFile, out_buf, bytesToRead, &bytesRead, NULL) ||
+ bytesToRead = min(sizeof(buf), bytes_remaining);
+ if (!ReadFile(hFile, buf, bytesToRead, &bytesRead, NULL) ||
bytesRead != bytesToRead)
{
set_errno_from_GetLastError();
break;
}
bytes_remaining -= bytesRead;
- if (cb) {
- ret = (*cb)(out_buf, bytesRead, ctx_or_buf);
- if (ret)
- break;
- } else {
- out_buf += bytesRead;
- }
+ ret = (*cb)(buf, bytesRead, cb_ctx);
+ if (ret)
+ break;
}
CloseHandle(hFile);
return ret;
struct win32_encrypted_read_ctx {
consume_data_callback_t read_prefix_cb;
- void *read_prefix_ctx_or_buf;
+ void *read_prefix_ctx;
int wimlib_err_code;
- void *buf;
- size_t buf_filled;
u64 bytes_remaining;
};
static DWORD WINAPI
-win32_encrypted_export_cb(unsigned char *_data, void *_ctx, unsigned long len)
+win32_encrypted_export_cb(unsigned char *data, void *_ctx, unsigned long len)
{
- const void *data = _data;
struct win32_encrypted_read_ctx *ctx = _ctx;
int ret;
+ size_t bytes_to_consume = min(len, ctx->bytes_remaining);
- DEBUG("len = %lu", len);
- if (ctx->read_prefix_cb) {
- /* The length of the buffer passed to the ReadEncryptedFileRaw()
- * export callback is undocumented, so we assume it may be of
- * arbitrary size. */
- size_t bytes_to_buffer = min(ctx->bytes_remaining - ctx->buf_filled,
- len);
- while (bytes_to_buffer) {
- size_t bytes_to_copy_to_buf =
- min(bytes_to_buffer, WIM_CHUNK_SIZE - ctx->buf_filled);
-
- memcpy(ctx->buf + ctx->buf_filled, data,
- bytes_to_copy_to_buf);
- ctx->buf_filled += bytes_to_copy_to_buf;
- data += bytes_to_copy_to_buf;
- bytes_to_buffer -= bytes_to_copy_to_buf;
-
- if (ctx->buf_filled == WIM_CHUNK_SIZE ||
- ctx->buf_filled == ctx->bytes_remaining)
- {
- ret = (*ctx->read_prefix_cb)(ctx->buf,
- ctx->buf_filled,
- ctx->read_prefix_ctx_or_buf);
- if (ret) {
- ctx->wimlib_err_code = ret;
- /* Shouldn't matter what error code is returned
- * here, as long as it isn't ERROR_SUCCESS. */
- return ERROR_READ_FAULT;
- }
- ctx->bytes_remaining -= ctx->buf_filled;
- ctx->buf_filled = 0;
- }
- }
- } else {
- size_t len_to_copy = min(len, ctx->bytes_remaining);
- ctx->read_prefix_ctx_or_buf = mempcpy(ctx->read_prefix_ctx_or_buf,
- data,
- len_to_copy);
- ctx->bytes_remaining -= len_to_copy;
+ if (bytes_to_consume == 0)
+ return ERROR_SUCCESS;
+
+ ret = (*ctx->read_prefix_cb)(data, bytes_to_consume, ctx->read_prefix_ctx);
+ if (ret) {
+ ctx->wimlib_err_code = ret;
+ /* Shouldn't matter what error code is returned here, as long as
+ * it isn't ERROR_SUCCESS. */
+ return ERROR_READ_FAULT;
}
+ ctx->bytes_remaining -= bytes_to_consume;
return ERROR_SUCCESS;
}
read_win32_encrypted_file_prefix(const struct wim_lookup_table_entry *lte,
u64 size,
consume_data_callback_t cb,
- void *ctx_or_buf,
- int _ignored_flags)
+ void *cb_ctx)
{
struct win32_encrypted_read_ctx export_ctx;
DWORD err;
void *file_ctx;
int ret;
- DEBUG("Reading %"PRIu64" bytes from encryted file \"%ls\"",
+ DEBUG("Reading %"PRIu64" bytes from encrypted file \"%ls\"",
size, lte->file_on_disk);
export_ctx.read_prefix_cb = cb;
- export_ctx.read_prefix_ctx_or_buf = ctx_or_buf;
+ export_ctx.read_prefix_ctx = cb_ctx;
export_ctx.wimlib_err_code = 0;
- if (cb) {
- export_ctx.buf = MALLOC(WIM_CHUNK_SIZE);
- if (!export_ctx.buf)
- return WIMLIB_ERR_NOMEM;
- } else {
- export_ctx.buf = NULL;
- }
- export_ctx.buf_filled = 0;
export_ctx.bytes_remaining = size;
- err = OpenEncryptedFileRawW(lte->file_on_disk, 0, &file_ctx);
+ err = OpenEncryptedFileRaw(lte->file_on_disk, 0, &file_ctx);
if (err != ERROR_SUCCESS) {
set_errno_from_win32_error(err);
ERROR_WITH_ERRNO("Failed to open encrypted file \"%ls\" "
"for raw read", lte->file_on_disk);
- ret = WIMLIB_ERR_OPEN;
- goto out_free_buf;
+ return WIMLIB_ERR_OPEN;
}
err = ReadEncryptedFileRaw(win32_encrypted_export_cb,
&export_ctx, file_ctx);
ret = 0;
}
CloseEncryptedFileRaw(file_ctx);
-out_free_buf:
- FREE(export_ctx.buf);
return ret;
}
* short names are essentially obsolete anyway.
*/
static int
-win32_get_short_name(HANDLE hFile, const wchar_t *path, struct wim_dentry *dentry)
+win32_get_short_name(HANDLE hFile, struct wim_dentry *dentry)
{
/* It's not any harder to just make the NtQueryInformationFile() system
* call ourselves, and it saves a dumb call to FindFirstFile() which of
* course has to create its own handle. */
-#ifdef WITH_NTDLL
NTSTATUS status;
IO_STATUS_BLOCK io_status;
u8 buf[128] _aligned_attribute(8);
const FILE_NAME_INFORMATION *info;
- status = NtQueryInformationFile(hFile, &io_status, buf, sizeof(buf),
- FileAlternateNameInformation);
+ status = (*func_NtQueryInformationFile)(hFile, &io_status, buf, sizeof(buf),
+ FileAlternateNameInformation);
info = (const FILE_NAME_INFORMATION*)buf;
- if (status == STATUS_SUCCESS && info->FileNameLength != 0) {
- dentry->short_name = MALLOC(info->FileNameLength + 2);
+ if (NT_SUCCESS(status) && info->FileNameLength != 0) {
+ dentry->short_name = utf16le_dupz(info->FileName,
+ info->FileNameLength);
if (!dentry->short_name)
return WIMLIB_ERR_NOMEM;
- memcpy(dentry->short_name, info->FileName,
- info->FileNameLength);
- dentry->short_name[info->FileNameLength / 2] = L'\0';
dentry->short_name_nbytes = info->FileNameLength;
}
return 0;
-#else
- WIN32_FIND_DATAW dat;
- HANDLE hFind;
- int ret = 0;
-
- hFind = FindFirstFile(path, &dat);
- if (hFind != INVALID_HANDLE_VALUE) {
- if (dat.cAlternateFileName[0] != L'\0') {
- DEBUG("\"%ls\": short name \"%ls\"", path, dat.cAlternateFileName);
- 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;
- } else {
- ret = WIMLIB_ERR_NOMEM;
- }
- }
- FindClose(hFind);
- }
- return ret;
-#endif
-}
-
-/*
- * win32_query_security_descriptor() - Query a file's security descriptor
- *
- * We need the file's security descriptor in SECURITY_DESCRIPTOR_RELATIVE
- * format, and we currently have a handle opened with as many relevant
- * permissions as possible. At this point, on Windows there are a number of
- * options for reading a file's security descriptor:
- *
- * GetFileSecurity(): This takes in a path and returns the
- * SECURITY_DESCRIPTOR_RELATIVE. Problem: this uses an internal handle, not
- * ours, and the handle created internally doesn't specify
- * FILE_FLAG_BACKUP_SEMANTICS. Therefore there can be access denied errors on
- * some files and directories, even when running as the Administrator.
- *
- * GetSecurityInfo(): This takes in a handle and returns the security
- * descriptor split into a bunch of different parts. This should work, but it's
- * dumb because we have to put the security descriptor back together again.
- *
- * BackupRead(): This can read the security descriptor, but this is a
- * difficult-to-use API, probably only works as the Administrator, and the
- * format of the returned data is not well documented.
- *
- * NtQuerySecurityObject(): This is exactly what we need, as it takes in a
- * handle and returns the security descriptor in SECURITY_DESCRIPTOR_RELATIVE
- * format. Only problem is that it's a ntdll function and therefore not
- * officially part of the Win32 API. Oh well.
- */
-static DWORD
-win32_query_security_descriptor(HANDLE hFile, const wchar_t *path,
- SECURITY_INFORMATION requestedInformation,
- SECURITY_DESCRIPTOR *buf,
- DWORD bufsize, DWORD *lengthNeeded)
-{
-#ifdef WITH_NTDLL
- NTSTATUS status;
-
- status = NtQuerySecurityObject(hFile, requestedInformation, buf,
- bufsize, lengthNeeded);
- /* Since it queries an already-open handle, NtQuerySecurityObject()
- * apparently returns STATUS_ACCESS_DENIED rather than
- * STATUS_PRIVILEGE_NOT_HELD. */
- if (status == STATUS_ACCESS_DENIED)
- return ERROR_PRIVILEGE_NOT_HELD;
- else
- return RtlNtStatusToDosError(status);
-#else
- if (GetFileSecurity(path, requestedInformation, buf,
- bufsize, lengthNeeded))
- return ERROR_SUCCESS;
- else
- return GetLastError();
-#endif
}
static int
u8 *buf;
size_t bufsize;
DWORD lenNeeded;
- DWORD err;
+ NTSTATUS status;
int ret;
requestedInformation = DACL_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION;
buf = _buf;
bufsize = sizeof(_buf);
- for (;;) {
- err = win32_query_security_descriptor(hFile, path,
- requestedInformation,
- (SECURITY_DESCRIPTOR*)buf,
- bufsize, &lenNeeded);
- switch (err) {
- case ERROR_SUCCESS:
- goto have_descriptor;
- case ERROR_INSUFFICIENT_BUFFER:
+
+ /*
+ * We need the file's security descriptor in SECURITY_DESCRIPTOR_RELATIVE
+ * format, and we currently have a handle opened with as many relevant
+ * permissions as possible. At this point, on Windows there are a number of
+ * options for reading a file's security descriptor:
+ *
+ * GetFileSecurity(): This takes in a path and returns the
+ * SECURITY_DESCRIPTOR_RELATIVE. Problem: this uses an internal handle, not
+ * ours, and the handle created internally doesn't specify
+ * FILE_FLAG_BACKUP_SEMANTICS. Therefore there can be access denied errors on
+ * some files and directories, even when running as the Administrator.
+ *
+ * GetSecurityInfo(): This takes in a handle and returns the security
+ * descriptor split into a bunch of different parts. This should work, but it's
+ * dumb because we have to put the security descriptor back together again.
+ *
+ * BackupRead(): This can read the security descriptor, but this is a
+ * difficult-to-use API, probably only works as the Administrator, and the
+ * format of the returned data is not well documented.
+ *
+ * NtQuerySecurityObject(): This is exactly what we need, as it takes in a
+ * handle and returns the security descriptor in SECURITY_DESCRIPTOR_RELATIVE
+ * format. Only problem is that it's a ntdll function and therefore not
+ * officially part of the Win32 API. Oh well.
+ */
+ while (!(NT_SUCCESS(status = (*func_NtQuerySecurityObject)(hFile,
+ requestedInformation,
+ (PSECURITY_DESCRIPTOR)buf,
+ bufsize,
+ &lenNeeded))))
+ {
+ switch (status) {
+ case STATUS_BUFFER_OVERFLOW:
wimlib_assert(buf == _buf);
buf = MALLOC(lenNeeded);
if (!buf)
return WIMLIB_ERR_NOMEM;
bufsize = lenNeeded;
break;
- case ERROR_PRIVILEGE_NOT_HELD:
- if (add_flags & WIMLIB_ADD_FLAG_STRICT_ACLS)
- goto fail;
+ case STATUS_PRIVILEGE_NOT_HELD:
+ case STATUS_ACCESS_DENIED:
+ if (add_flags & WIMLIB_ADD_FLAG_STRICT_ACLS) {
+ default:
+ set_errno_from_nt_status(status);
+ ERROR_WITH_ERRNO("\"%ls\": Failed to "
+ "read security descriptor", path);
+ ret = WIMLIB_ERR_READ;
+ goto out_free_buf;
+ }
if (requestedInformation & SACL_SECURITY_INFORMATION) {
state->num_get_sacl_priv_notheld++;
requestedInformation &= ~SACL_SECURITY_INFORMATION;
break;
}
- /* Fall through */
- case ERROR_ACCESS_DENIED:
- if (add_flags & WIMLIB_ADD_FLAG_STRICT_ACLS)
- goto fail;
state->num_get_sd_access_denied++;
ret = 0;
goto out_free_buf;
- default:
- fail:
- set_errno_from_win32_error(err);
- ERROR("Failed to read security descriptor of \"%ls\"", path);
- ret = WIMLIB_ERR_READ;
- goto out_free_buf;
}
}
-have_descriptor:
inode->i_security_id = sd_set_add_sd(sd_set, buf, lenNeeded);
if (inode->i_security_id < 0)
ret = WIMLIB_ERR_NOMEM;
DEBUG("Recurse to directory \"%ls\"", dir_path);
/* Using NtQueryDirectoryFile() we can re-use the same open handle,
- * which we opened with FILE_FLAG_BACKUP_SEMANTICS (probably not the
- * case for the FindFirstFile() API; it's not documented). */
-#ifdef WITH_NTDLL
+ * which we opened with FILE_FLAG_BACKUP_SEMANTICS. */
+
NTSTATUS status;
IO_STATUS_BLOCK io_status;
const size_t bufsize = 8192;
- u8 *buf;
- BOOL restartScan = TRUE;
- const FILE_NAMES_INFORMATION *info;
+ void *buf;
buf = MALLOC(bufsize);
if (!buf)
return WIMLIB_ERR_NOMEM;
- for (;;) {
- status = NtQueryDirectoryFile(hDir, NULL, NULL, NULL,
- &io_status, buf, bufsize,
- FileNamesInformation,
- FALSE, NULL, restartScan);
- restartScan = FALSE;
- if (status != STATUS_SUCCESS) {
- if (status == STATUS_NO_MORE_FILES ||
- status == STATUS_NO_MORE_ENTRIES ||
- status == STATUS_NO_MORE_MATCHES) {
- ret = 0;
- } else {
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("Failed to read directory "
- "\"%ls\"", dir_path);
- ret = WIMLIB_ERR_READ;
- }
- goto out_free_buf;
- }
- wimlib_assert(io_status.Information != 0);
- info = (const FILE_NAMES_INFORMATION*)buf;
+
+ while (NT_SUCCESS(status = (*func_NtQueryDirectoryFile)(hDir, NULL, NULL, NULL,
+ &io_status, buf, bufsize,
+ FileNamesInformation,
+ FALSE, NULL, FALSE)))
+ {
+ const FILE_NAMES_INFORMATION *info = buf;
for (;;) {
if (!(info->FileNameLength == 2 && info->FileName[0] == L'.') &&
!(info->FileNameLength == 4 && info->FileName[0] == L'.' &&
}
if (info->NextEntryOffset == 0)
break;
- info = (const FILE_NAMES_INFORMATION*)
- ((const u8*)info + info->NextEntryOffset);
+ info = (const FILE_NAMES_INFORMATION *)
+ ((const u8 *)info + info->NextEntryOffset);
}
}
-out_free_buf:
- FREE(buf);
- return ret;
-#else
- WIN32_FIND_DATAW dat;
- HANDLE hFind;
- DWORD err;
- /* 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] = OS_PREFERRED_PATH_SEPARATOR;
- 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 {
- set_errno_from_win32_error(err);
- ERROR_WITH_ERRNO("Failed to read directory \"%ls\"",
- dir_path);
- return WIMLIB_ERR_READ;
- }
- }
- ret = 0;
- do {
- /* Skip . and .. entries */
- 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] = OS_PREFERRED_PATH_SEPARATOR;
- 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,
- params,
- state,
- vol_flags);
- 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) {
- set_errno_from_win32_error(err);
+ if (status != STATUS_NO_MORE_FILES) {
+ set_errno_from_nt_status(status);
ERROR_WITH_ERRNO("Failed to read directory \"%ls\"", dir_path);
- if (ret == 0)
- ret = WIMLIB_ERR_READ;
+ ret = WIMLIB_ERR_READ;
}
-out_find_close:
- FindClose(hFind);
+out_free_buf:
+ FREE(buf);
return ret;
-#endif
}
/* Reparse point fixup status code */
static int
win32_capture_try_rpfix(u8 *rpbuf, u16 *rpbuflen_p,
u64 capture_root_ino, u64 capture_root_dev,
- const wchar_t *path)
+ const wchar_t *path, struct add_image_params *params)
{
struct reparse_data rpdata;
int ret;
ret = -ret;
} else {
if (rp_status == RP_EXCLUDED) {
+ /* Ignoring absolute symbolic link or junction point
+ * that points out of the tree to be captured. */
size_t print_name_nchars = rpdata.print_name_nbytes / 2;
wchar_t print_name0[print_name_nchars + 1];
print_name0[print_name_nchars] = L'\0';
wmemcpy(print_name0, rpdata.print_name, print_name_nchars);
- WARNING("Ignoring %ls pointing out of capture directory:\n"
- " \"%ls\" -> \"%ls\"\n"
- " (Use --norpfix to capture all symbolic links "
- "and junction points as-is)",
- (rpdata.rptag == WIM_IO_REPARSE_TAG_SYMLINK) ?
- L"absolute symbolic link" : L"junction point",
- path, print_name0);
+
+ params->progress.scan.cur_path = path;
+ params->progress.scan.symlink_target = print_name0;
+ do_capture_progress(params,
+ WIMLIB_SCAN_DENTRY_EXCLUDED_SYMLINK,
+ NULL);
}
ret = rp_status;
}
&rpbuflen,
params->capture_root_ino,
params->capture_root_dev,
- path);
+ path,
+ params);
} else {
ret = RP_NOT_FIXED;
}
}
static DWORD WINAPI
-win32_tally_encrypted_size_cb(unsigned char *_data, void *_ctx,
+win32_tally_encrypted_size_cb(unsigned char *_data, void *_size_ret,
unsigned long len)
{
- *(u64*)_ctx += len;
+ *(u64*)_size_ret += len;
return ERROR_SUCCESS;
}
void *file_ctx;
int ret;
- *size_ret = 0;
- err = OpenEncryptedFileRawW(path, 0, &file_ctx);
+ err = OpenEncryptedFileRaw(path, 0, &file_ctx);
if (err != ERROR_SUCCESS) {
set_errno_from_win32_error(err);
ERROR_WITH_ERRNO("Failed to open encrypted file \"%ls\" "
"for raw read", path);
return WIMLIB_ERR_OPEN;
}
+ *size_ret = 0;
err = ReadEncryptedFileRaw(win32_tally_encrypted_size_cb,
size_ret, file_ctx);
if (err != ERROR_SUCCESS) {
*
* @inode: WIM inode to save the stream into.
*
- * @lookup_table: Stream lookup table for the WIM.
+ * @unhashed_streams: List of unhashed streams that have been added to the WIM
+ * image.
*
* @dat: A `WIN32_FIND_STREAM_DATA' structure that specifies the
* stream name.
win32_capture_stream(const wchar_t *path,
size_t path_num_chars,
struct wim_inode *inode,
- struct wim_lookup_table *lookup_table,
+ struct list_head *unhashed_streams,
WIN32_FIND_STREAM_DATA *dat)
{
struct wim_ads_entry *ads_entry;
spath_buf_nbytes = (spath_nchars + 1) * sizeof(wchar_t);
spath = MALLOC(spath_buf_nbytes);
- swprintf(spath, L"%ls%ls%ls%ls",
+ tsprintf(spath, L"%ls%ls%ls%ls",
relpath_prefix, path, colonchar, stream_name);
/* Make a new wim_lookup_table_entry */
ret = win32_get_encrypted_file_size(path, &encrypted_size);
if (ret)
goto out_free_spath;
- lte->resource_entry.original_size = encrypted_size;
+ lte->size = encrypted_size;
} else {
lte->resource_location = RESOURCE_IN_FILE_ON_DISK;
- lte->resource_entry.original_size = (u64)dat->StreamSize.QuadPart;
+ lte->size = (u64)dat->StreamSize.QuadPart;
}
u32 stream_id;
stream_id = 0;
inode->i_lte = lte;
}
- lookup_table_insert_unhashed(lookup_table, lte, inode, stream_id);
+ add_unhashed_stream(lte, inode, stream_id, unhashed_streams);
ret = 0;
out_free_spath:
FREE(spath);
/* Load information about the streams of an open file into a WIM inode.
*
- * By default, we use the NtQueryInformationFile() system call instead of
- * FindFirstStream() and FindNextStream(). This is done for two reasons:
+ * We use the NtQueryInformationFile() system call instead of FindFirstStream()
+ * and FindNextStream(). This is done for two reasons:
*
* - FindFirstStream() opens its own handle to the file or directory and
* apparently does so without specifying FILE_FLAG_BACKUP_SEMANTICS, thereby
* already present in Windows XP.
*/
static int
-win32_capture_streams(HANDLE hFile,
+win32_capture_streams(HANDLE *hFile_p,
const wchar_t *path,
size_t path_num_chars,
struct wim_inode *inode,
- struct wim_lookup_table *lookup_table,
+ struct list_head *unhashed_streams,
u64 file_size,
unsigned vol_flags)
{
- WIN32_FIND_STREAM_DATA dat;
int ret;
-#ifdef WITH_NTDLL
u8 _buf[8192] _aligned_attribute(8);
u8 *buf;
size_t bufsize;
IO_STATUS_BLOCK io_status;
NTSTATUS status;
const FILE_STREAM_INFORMATION *info;
-#else
- HANDLE hFind;
- DWORD err;
-#endif
DEBUG("Capturing streams from \"%ls\"", path);
- if (!(vol_flags & FILE_NAMED_STREAMS))
- goto unnamed_only;
-#ifndef WITH_NTDLL
- if (win32func_FindFirstStreamW == NULL)
- goto unnamed_only;
-#endif
-
-#ifdef WITH_NTDLL
buf = _buf;
bufsize = sizeof(_buf);
- /* Get a buffer containing the stream information. */
- for (;;) {
- status = NtQueryInformationFile(hFile, &io_status, buf, bufsize,
- FileStreamInformation);
- if (status == STATUS_SUCCESS) {
- break;
- } else if (status == STATUS_BUFFER_OVERFLOW) {
- u8 *newbuf;
+ if (!(vol_flags & FILE_NAMED_STREAMS))
+ goto unnamed_only;
- bufsize *= 2;
- if (buf == _buf)
- newbuf = MALLOC(bufsize);
- else
- newbuf = REALLOC(buf, bufsize);
+ /* Get a buffer containing the stream information. */
+ while (!NT_SUCCESS(status = (*func_NtQueryInformationFile)(*hFile_p,
+ &io_status,
+ buf,
+ bufsize,
+ FileStreamInformation)))
+ {
- if (!newbuf) {
- ret = WIMLIB_ERR_NOMEM;
- goto out_free_buf;
+ switch (status) {
+ case STATUS_BUFFER_OVERFLOW:
+ {
+ u8 *newbuf;
+
+ bufsize *= 2;
+ if (buf == _buf)
+ newbuf = MALLOC(bufsize);
+ else
+ newbuf = REALLOC(buf, bufsize);
+ if (!newbuf) {
+ ret = WIMLIB_ERR_NOMEM;
+ goto out_free_buf;
+ }
+ buf = newbuf;
}
- buf = newbuf;
- } else {
+ break;
+ case STATUS_NOT_IMPLEMENTED:
+ case STATUS_NOT_SUPPORTED:
+ case STATUS_INVALID_INFO_CLASS:
+ goto unnamed_only;
+ default:
set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("Failed to read streams of %ls", path);
+ ERROR_WITH_ERRNO("\"%ls\": Failed to query "
+ "stream information", path);
ret = WIMLIB_ERR_READ;
goto out_free_buf;
}
goto out_free_buf;
}
+ if (inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED) {
+ /* OpenEncryptedFileRaw() seems to fail with
+ * ERROR_SHARING_VIOLATION if there are any handles opened to
+ * the file. */
+ CloseHandle(*hFile_p);
+ *hFile_p = INVALID_HANDLE_VALUE;
+ }
+
/* Parse one or more stream information structures. */
- info = (const FILE_STREAM_INFORMATION*)buf;
+ info = (const FILE_STREAM_INFORMATION *)buf;
for (;;) {
+ WIN32_FIND_STREAM_DATA dat;
+
if (info->StreamNameLength <= sizeof(dat.cStreamName) - 2) {
dat.StreamSize = info->StreamSize;
memcpy(dat.cStreamName, info->StreamName, info->StreamNameLength);
/* Capture the stream. */
ret = win32_capture_stream(path, path_num_chars, inode,
- lookup_table, &dat);
+ unhashed_streams, &dat);
if (ret)
goto out_free_buf;
}
if (info->NextEntryOffset == 0) {
/* No more stream information. */
- ret = 0;
break;
}
/* Advance to next stream information. */
- info = (const FILE_STREAM_INFORMATION*)
- ((const u8*)info + info->NextEntryOffset);
+ info = (const FILE_STREAM_INFORMATION *)
+ ((const u8 *)info + info->NextEntryOffset);
}
-out_free_buf:
- /* Free buffer if allocated on heap. */
- if (buf != _buf)
- FREE(buf);
- return ret;
-
-#else /* WITH_NTDLL */
- hFind = win32func_FindFirstStreamW(path, FindStreamInfoStandard, &dat, 0);
- if (hFind == INVALID_HANDLE_VALUE) {
- err = GetLastError();
- if (err == ERROR_CALL_NOT_IMPLEMENTED)
- goto unnamed_only;
-
- /* Seems legal for this to return ERROR_HANDLE_EOF on reparse
- * points and directories */
- if ((inode->i_attributes &
- (FILE_ATTRIBUTE_REPARSE_POINT | FILE_ATTRIBUTE_DIRECTORY))
- && err == ERROR_HANDLE_EOF)
- {
- DEBUG("ERROR_HANDLE_EOF (ok)");
- return 0;
- } else {
- if (err == ERROR_ACCESS_DENIED) {
- WARNING("Failed to look up data streams "
- "of \"%ls\": Access denied!\n%ls",
- path, capture_access_denied_msg);
- return 0;
- } else {
- set_errno_from_win32_error(err);
- ERROR_WITH_ERRNO("Failed to look up data streams "
- "of \"%ls\"", path);
- return WIMLIB_ERR_READ;
- }
- }
- }
- do {
- ret = win32_capture_stream(path,
- path_num_chars,
- inode, lookup_table,
- &dat);
- if (ret)
- goto out_find_close;
- } while (win32func_FindNextStreamW(hFind, &dat));
- err = GetLastError();
- if (err != ERROR_HANDLE_EOF) {
- set_errno_from_win32_error(err);
- ERROR_WITH_ERRNO("Error reading data streams from "
- "\"%ls\"", path);
- ret = WIMLIB_ERR_READ;
- }
-out_find_close:
- FindClose(hFind);
- return ret;
-#endif /* !WITH_NTDLL */
+ ret = 0;
+ goto out_free_buf;
unnamed_only:
- /* FindFirstStreamW() API is not available, or the volume does not
- * support named streams. Only capture the unnamed data stream. */
+ /* The volume does not support named streams. Only capture the unnamed
+ * data stream. */
DEBUG("Only capturing unnamed data stream");
- if (!(inode->i_attributes & (FILE_ATTRIBUTE_DIRECTORY |
- FILE_ATTRIBUTE_REPARSE_POINT)))
+ if (inode->i_attributes & (FILE_ATTRIBUTE_DIRECTORY |
+ FILE_ATTRIBUTE_REPARSE_POINT))
{
+ ret = 0;
+ goto out_free_buf;
+ }
+
+ {
+ WIN32_FIND_STREAM_DATA dat;
+
wcscpy(dat.cStreamName, L"::$DATA");
dat.StreamSize.QuadPart = file_size;
- ret = win32_capture_stream(path,
- path_num_chars,
- inode, lookup_table,
- &dat);
- if (ret)
- return ret;
+ ret = win32_capture_stream(path, path_num_chars,
+ inode, unhashed_streams, &dat);
}
+out_free_buf:
+ /* Free buffer if allocated on heap. */
+ if (buf != _buf)
+ FREE(buf);
return ret;
}
unsigned vol_flags)
{
struct wim_dentry *root = NULL;
- struct wim_inode *inode;
+ struct wim_inode *inode = NULL;
DWORD err;
u64 file_size;
int ret;
u8 *rpbuf;
u16 rpbuflen;
u16 not_rpfixed;
- HANDLE hFile;
+ HANDLE hFile = INVALID_HANDLE_VALUE;
DWORD desiredAccess;
- params->progress.scan.cur_path = path;
- if (exclude_path(path, path_num_chars, params->config, true)) {
- if (params->add_flags & WIMLIB_ADD_FLAG_ROOT) {
- ERROR("Cannot exclude the root directory from capture");
- ret = WIMLIB_ERR_INVALID_CAPTURE_CONFIG;
- goto out;
- }
- do_capture_progress(params, WIMLIB_SCAN_DENTRY_EXCLUDED);
- ret = 0;
- goto out;
- }
-
-#if 0
- if (path_num_chars >= 4 &&
- !wmemcmp(path, L"\\\\?\\", 4) &&
- path_num_chars + 1 - 4 > MAX_PATH &&
- state->num_long_path_warnings < MAX_CAPTURE_LONG_PATH_WARNINGS)
+ if (should_exclude_path(path + params->capture_root_nchars,
+ path_num_chars - params->capture_root_nchars,
+ params->config))
{
- WARNING("Path \"%ls\" exceeds MAX_PATH", path);
- if (++state->num_long_path_warnings == MAX_CAPTURE_LONG_PATH_WARNINGS)
- WARNING("Suppressing further warnings about long paths.");
+ ret = 0;
+ goto out_progress;
}
-#endif
-
- do_capture_progress(params, WIMLIB_SCAN_DENTRY_OK);
desiredAccess = FILE_READ_DATA | FILE_READ_ATTRIBUTES |
READ_CONTROL | ACCESS_SYSTEM_SECURITY;
ERROR_WITH_ERRNO("Failed to get file information for \"%ls\"",
path);
ret = WIMLIB_ERR_STAT;
- goto out_close_handle;
+ goto out;
}
if (file_info.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
if (ret < 0) {
/* WIMLIB_ERR_* (inverted) */
ret = -ret;
- goto out_close_handle;
+ goto out;
} else if (ret & RP_FIXED) {
not_rpfixed = 0;
} else if (ret == RP_EXCLUDED) {
ret = 0;
- goto out_close_handle;
+ goto out;
} else {
not_rpfixed = 1;
}
* only 1 link and refuse to hard link them. This is because Windows
* has a bug where it can return duplicate File IDs for files and
* directories on the FAT filesystem. */
- ret = inode_table_new_dentry(¶ms->inode_table,
+ ret = inode_table_new_dentry(params->inode_table,
path_basename_with_len(path, path_num_chars),
((u64)file_info.nFileIndexHigh << 32) |
(u64)file_info.nFileIndexLow,
(file_info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)),
&root);
if (ret)
- goto out_close_handle;
+ goto out;
- ret = win32_get_short_name(hFile, path, root);
+ ret = win32_get_short_name(hFile, root);
if (ret)
- goto out_close_handle;
+ goto out;
inode = root->d_inode;
- if (inode->i_nlink > 1) /* Shared inode; nothing more to do */
- goto out_close_handle;
+ if (inode->i_nlink > 1) {
+ /* Shared inode; nothing more to do */
+ goto out_progress;
+ }
inode->i_attributes = file_info.dwFileAttributes;
inode->i_creation_time = FILETIME_to_u64(&file_info.ftCreationTime);
&& (vol_flags & FILE_PERSISTENT_ACLS))
{
ret = win32_get_security_descriptor(hFile, path, inode,
- ¶ms->sd_set, state,
+ params->sd_set, state,
params->add_flags);
if (ret)
- goto out_close_handle;
+ goto out;
}
file_size = ((u64)file_info.nFileSizeHigh << 32) |
/* Capture the unnamed data stream (only should be present for regular
* files) and any alternate data streams. */
- ret = win32_capture_streams(hFile,
+ ret = win32_capture_streams(&hFile,
path,
path_num_chars,
inode,
- params->lookup_table,
+ params->unhashed_streams,
file_size,
vol_flags);
if (ret)
- goto out_close_handle;
+ goto out;
if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
/* Reparse point: set the reparse data (which we read already)
params->lookup_table);
} else if (inode->i_attributes & FILE_ATTRIBUTE_DIRECTORY) {
/* Directory (not a reparse point) --- recurse to children */
+
+ if (hFile == INVALID_HANDLE_VALUE) {
+ /* Re-open handle that was closed to read raw encrypted
+ * data. */
+ hFile = win32_open_existing_file(path, FILE_READ_DATA);
+ if (hFile == INVALID_HANDLE_VALUE) {
+ set_errno_from_GetLastError();
+ ERROR_WITH_ERRNO("Failed to reopen \"%ls\"",
+ path);
+ ret = WIMLIB_ERR_OPEN;
+ goto out;
+ }
+ }
ret = win32_recurse_directory(hFile,
path,
path_num_chars,
state,
vol_flags);
}
-out_close_handle:
- CloseHandle(hFile);
+ if (ret)
+ goto out;
+
+ path[path_num_chars] = '\0';
+out_progress:
+ params->progress.scan.cur_path = path;
+ if (root == NULL)
+ do_capture_progress(params, WIMLIB_SCAN_DENTRY_EXCLUDED, NULL);
+ else
+ do_capture_progress(params, WIMLIB_SCAN_DENTRY_OK, inode);
out:
+ if (hFile != INVALID_HANDLE_VALUE)
+ CloseHandle(hFile);
if (ret == 0)
*root_ret = root;
else
struct win32_capture_state state;
unsigned vol_flags;
DWORD dret;
- bool need_prefix_free = false;
-
-#ifndef WITH_NTDLL
- if (!win32func_FindFirstStreamW) {
- WARNING("Running on Windows XP or earlier; "
- "alternate data streams will not be captured.");
- }
-#endif
path_nchars = wcslen(root_disk_path);
if (path_nchars > WINDOWS_NT_MAX_PATH)
/* WARNING: There is no check for overflow later when this buffer is
* being used! But it's as long as the maximum path length understood
* by Windows NT (which is NOT the same as MAX_PATH). */
- path = MALLOC(WINDOWS_NT_MAX_PATH * sizeof(wchar_t));
- if (!path)
+ path = MALLOC((WINDOWS_NT_MAX_PATH + 1) * sizeof(wchar_t));
+ if (path == NULL)
return WIMLIB_ERR_NOMEM;
/* Work around defective behavior in Windows where paths longer than 260
* turned into absolute paths and prefixed with "\\?\". */
if (wcsncmp(root_disk_path, L"\\\\?\\", 4)) {
- dret = GetFullPathName(root_disk_path, WINDOWS_NT_MAX_PATH - 4,
+ dret = GetFullPathName(root_disk_path, WINDOWS_NT_MAX_PATH - 3,
&path[4], NULL);
- if (dret == 0 || dret >= WINDOWS_NT_MAX_PATH - 4) {
+ if (dret == 0 || dret >= WINDOWS_NT_MAX_PATH - 3) {
WARNING("Can't get full path name for \"%ls\"", root_disk_path);
wmemcpy(path, root_disk_path, path_nchars + 1);
} else {
wmemcpy(path, L"\\\\?\\", 4);
path_nchars = 4 + dret;
- /* Update pattern prefix */
- if (params->config != NULL)
- {
- params->config->_prefix = TSTRDUP(path);
- params->config->_prefix_num_tchars = path_nchars;
- if (params->config->_prefix == NULL)
- {
- ret = WIMLIB_ERR_NOMEM;
- goto out_free_path;
- }
- need_prefix_free = true;
- }
}
} else {
wmemcpy(path, root_disk_path, path_nchars + 1);
}
+ /* Strip trailing slashes. If we don't do this, we may create a path
+ * with multiple consecutive backslashes, which for some reason causes
+ * Windows to report that the file cannot be found. */
+ while (path_nchars >= 2 &&
+ path[path_nchars - 1] == L'\\' &&
+ path[path_nchars - 2] != L':')
+ {
+ path[--path_nchars] = L'\0';
+ }
+
+ params->capture_root_nchars = path_nchars;
+
memset(&state, 0, sizeof(state));
ret = win32_build_dentry_tree_recursive(root_ret, path,
path_nchars, params,
&state, vol_flags);
- if (need_prefix_free)
- FREE(params->config->_prefix);
-out_free_path:
FREE(path);
if (ret == 0)
win32_do_capture_warnings(root_disk_path, &state, params->add_flags);
git://wimlib.net / wimlib / blobdiff