*/
/*
- * Copyright (C) 2013, 2014 Eric Biggers
+ * Copyright (C) 2013, 2014, 2015 Eric Biggers
*
* This file 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
#include "wimlib/win32_common.h"
+#include "wimlib/assert.h"
#include "wimlib/capture.h"
#include "wimlib/dentry.h"
#include "wimlib/encoding.h"
#include "wimlib/paths.h"
#include "wimlib/reparse.h"
-#include <errno.h>
-
struct winnt_scan_stats {
unsigned long num_get_sd_access_denied;
unsigned long num_get_sacl_priv_notheld;
status = winnt_openat(NULL, path, wcslen(path),
FILE_READ_DATA | SYNCHRONIZE, &h);
if (!NT_SUCCESS(status)) {
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Can't open for reading "
- "(status=0x%08"PRIx32")",
- printable_path(path), (u32)status);
+ winnt_error(status, L"\"%ls\": Can't open for reading",
+ printable_path(path));
return WIMLIB_ERR_OPEN;
}
status = (*func_NtReadFile)(h, NULL, NULL, NULL,
&iosb, buf, count, NULL, NULL);
if (!NT_SUCCESS(status)) {
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Error reading data "
- "(status=0x%08"PRIx32")",
- printable_path(path), (u32)status);
+ winnt_error(status, L"\"%ls\": Error reading data",
+ printable_path(path));
ret = WIMLIB_ERR_READ;
break;
}
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. */
+ /* It doesn'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;
DWORD err;
void *file_ctx;
int ret;
+ DWORD flags = 0;
+
+ if (lte->file_inode->i_attributes & FILE_ATTRIBUTE_DIRECTORY)
+ flags |= CREATE_FOR_DIR;
export_ctx.read_prefix_cb = cb;
export_ctx.read_prefix_ctx = cb_ctx;
export_ctx.wimlib_err_code = 0;
export_ctx.bytes_remaining = size;
- err = OpenEncryptedFileRaw(lte->file_on_disk, 0, &file_ctx);
+ err = OpenEncryptedFileRaw(lte->file_on_disk, flags, &file_ctx);
if (err != ERROR_SUCCESS) {
- set_errno_from_win32_error(err);
- ERROR_WITH_ERRNO("Failed to open encrypted file \"%ls\" "
- "for raw read",
- printable_path(lte->file_on_disk));
+ win32_error(err,
+ L"Failed to open encrypted file \"%ls\" for raw read",
+ printable_path(lte->file_on_disk));
return WIMLIB_ERR_OPEN;
}
err = ReadEncryptedFileRaw(win32_encrypted_export_cb,
&export_ctx, file_ctx);
if (err != ERROR_SUCCESS) {
- set_errno_from_win32_error(err);
- ERROR_WITH_ERRNO("Failed to read encrypted file \"%ls\"",
- printable_path(lte->file_on_disk));
ret = export_ctx.wimlib_err_code;
- if (ret == 0)
+ if (ret == 0) {
+ win32_error(err,
+ L"Failed to read encrypted file \"%ls\"",
+ printable_path(lte->file_on_disk));
ret = WIMLIB_ERR_READ;
+ }
} else if (export_ctx.bytes_remaining != 0) {
ERROR("Only could read %"PRIu64" of %"PRIu64" bytes from "
"encrypted file \"%ls\"",
}
if (unlikely(status != STATUS_NO_MORE_FILES)) {
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Can't read directory "
- "(status=0x%08"PRIx32")",
- printable_path(full_path), (u32)status);
+ winnt_error(status, L"\"%ls\": Can't read directory",
+ printable_path(full_path));
ret = WIMLIB_ERR_READ;
}
out_free_buf:
NULL, 0, rpbuf, REPARSE_POINT_MAX_SIZE,
&bytes_returned, NULL))
{
- set_errno_from_GetLastError();
+ win32_error(GetLastError(), L"\"%ls\": Can't get reparse data",
+ printable_path(path));
return WIMLIB_ERR_READ;
}
if (unlikely(bytes_returned < 8)) {
- errno = EINVAL;
+ ERROR("\"%ls\": Reparse point data is invalid",
+ printable_path(path));
return WIMLIB_ERR_INVALID_REPARSE_DATA;
}
}
static int
-win32_get_encrypted_file_size(const wchar_t *path, u64 *size_ret)
+win32_get_encrypted_file_size(const wchar_t *path, bool is_dir, u64 *size_ret)
{
DWORD err;
void *file_ctx;
int ret;
+ DWORD flags = 0;
+
+ if (is_dir)
+ flags |= CREATE_FOR_DIR;
- err = OpenEncryptedFileRaw(path, 0, &file_ctx);
+ err = OpenEncryptedFileRaw(path, flags, &file_ctx);
if (err != ERROR_SUCCESS) {
- set_errno_from_win32_error(err);
- ERROR_WITH_ERRNO("Failed to open encrypted file \"%ls\" "
- "for raw read", printable_path(path));
+ win32_error(err,
+ L"Failed to open encrypted file \"%ls\" for raw read",
+ printable_path(path));
return WIMLIB_ERR_OPEN;
}
*size_ret = 0;
err = ReadEncryptedFileRaw(win32_tally_encrypted_size_cb,
size_ret, file_ctx);
if (err != ERROR_SUCCESS) {
- set_errno_from_win32_error(err);
- ERROR_WITH_ERRNO("Failed to read raw encrypted data from "
- "\"%ls\"", printable_path(path));
+ win32_error(err,
+ L"Failed to read raw encrypted data from \"%ls\"",
+ printable_path(path));
ret = WIMLIB_ERR_READ;
} else {
ret = 0;
return ret;
}
+static int
+winnt_load_encrypted_stream_info(struct wim_inode *inode, const wchar_t *nt_path,
+ struct list_head *unhashed_streams)
+{
+ struct wim_lookup_table_entry *lte = new_lookup_table_entry();
+ int ret;
+
+ if (unlikely(!lte))
+ return WIMLIB_ERR_NOMEM;
+
+ lte->file_on_disk = WCSDUP(nt_path);
+ if (unlikely(!lte->file_on_disk)) {
+ free_lookup_table_entry(lte);
+ return WIMLIB_ERR_NOMEM;
+ }
+ lte->resource_location = RESOURCE_WIN32_ENCRYPTED;
+
+ /* OpenEncryptedFileRaw() expects a Win32 name. */
+ wimlib_assert(!wmemcmp(lte->file_on_disk, L"\\??\\", 4));
+ lte->file_on_disk[1] = L'\\';
+
+ ret = win32_get_encrypted_file_size(lte->file_on_disk,
+ (inode->i_attributes & FILE_ATTRIBUTE_DIRECTORY),
+ <e->size);
+ if (unlikely(ret)) {
+ free_lookup_table_entry(lte);
+ return ret;
+ }
+
+ lte->file_inode = inode;
+ add_unhashed_stream(lte, inode, 0, unhashed_streams);
+ inode->i_lte = lte;
+ return 0;
+}
+
static bool
get_data_stream_name(const wchar_t *raw_stream_name, size_t raw_stream_name_nchars,
const wchar_t **stream_name_ret, size_t *stream_name_nchars_ret)
sizeof(wchar_t));
if (!ads_entry)
return WIMLIB_ERR_NOMEM;
- } else if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
- /* Ignore unnamed data stream of reparse point */
+ } else if (inode->i_attributes & (FILE_ATTRIBUTE_REPARSE_POINT |
+ FILE_ATTRIBUTE_ENCRYPTED))
+ {
+ /* Ignore unnamed data stream of reparse point or encrypted file
+ */
return 0;
} else {
ads_entry = NULL;
lte->file_on_disk = stream_path;
lte->resource_location = RESOURCE_IN_WINNT_FILE_ON_DISK;
lte->size = stream_size;
- if ((inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED) && !ads_entry) {
- /* Special case for encrypted file. */
-
- /* OpenEncryptedFileRaw() expects Win32 name, not NT name.
- * Change \??\ into \\?\ */
- lte->file_on_disk[1] = L'\\';
- wimlib_assert(!wmemcmp(lte->file_on_disk, L"\\\\?\\", 4));
-
- u64 encrypted_size;
- int ret;
-
- ret = win32_get_encrypted_file_size(lte->file_on_disk,
- &encrypted_size);
- if (ret) {
- free_lookup_table_entry(lte);
- return ret;
- }
- lte->size = encrypted_size;
- lte->resource_location = RESOURCE_WIN32_ENCRYPTED;
- }
-
if (ads_entry) {
stream_id = ads_entry->stream_id;
ads_entry->lte = lte;
* already present in Windows XP.
*/
static int
-winnt_scan_streams(HANDLE *hFile_p, const wchar_t *path, size_t path_nchars,
+winnt_scan_streams(HANDLE h, const wchar_t *path, size_t path_nchars,
struct wim_inode *inode, struct list_head *unhashed_streams,
u64 file_size, u32 vol_flags)
{
goto unnamed_only;
/* Get a buffer containing the stream information. */
- while (!NT_SUCCESS(status = (*func_NtQueryInformationFile)(*hFile_p,
+ while (!NT_SUCCESS(status = (*func_NtQueryInformationFile)(h,
&iosb,
buf,
bufsize,
case STATUS_INVALID_INFO_CLASS:
goto unnamed_only;
default:
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Failed to query stream "
- "information (status=0x%08"PRIx32")",
- printable_path(path), (u32)status);
+ winnt_error(status,
+ L"\"%ls\": Failed to query stream information",
+ printable_path(path));
ret = WIMLIB_ERR_READ;
goto out_free_buf;
}
goto out_free_buf;
}
- if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED)) {
- /* OpenEncryptedFileRaw() seems to fail with
- * ERROR_SHARING_VIOLATION if there are any handles opened to
- * the file. */
- (*func_NtClose)(*hFile_p);
- *hFile_p = INVALID_HANDLE_VALUE;
- }
-
/* Parse one or more stream information structures. */
info = (const FILE_STREAM_INFORMATION *)buf;
for (;;) {
{
struct wim_dentry *root = NULL;
struct wim_inode *inode = NULL;
- HANDLE h = INVALID_HANDLE_VALUE;
+ HANDLE h = NULL;
int ret;
NTSTATUS status;
FILE_ALL_INFORMATION file_info;
u8 *rpbuf;
u16 rpbuflen;
u16 not_rpfixed;
+ ACCESS_MASK requestedPerms;
ret = try_exclude(full_path, full_path_nchars, params);
if (ret < 0) /* Excluded? */
goto out;
/* Open the file. */
+ requestedPerms = FILE_READ_DATA |
+ FILE_READ_ATTRIBUTES |
+ READ_CONTROL |
+ ACCESS_SYSTEM_SECURITY |
+ SYNCHRONIZE;
+retry_open:
status = winnt_openat(cur_dir,
(cur_dir ? filename : full_path),
(cur_dir ? filename_nchars : full_path_nchars),
- FILE_READ_DATA |
- FILE_READ_ATTRIBUTES |
- READ_CONTROL |
- ACCESS_SYSTEM_SECURITY |
- SYNCHRONIZE,
+ requestedPerms,
&h);
if (unlikely(!NT_SUCCESS(status))) {
if (status == STATUS_DELETE_PENDING) {
WARNING("\"%ls\": Deletion pending; skipping file",
printable_path(full_path));
ret = 0;
- } else {
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Can't open file "
- "(status=0x%08"PRIx32")",
- printable_path(full_path), (u32)status);
- if (status == STATUS_FVE_LOCKED_VOLUME)
- ret = WIMLIB_ERR_FVE_LOCKED_VOLUME;
- else
- ret = WIMLIB_ERR_OPEN;
+ goto out;
}
- /* XXX: Provide option to exclude files that fail with
- * STATUS_SHARING_VIOLATION? */
+ if (status == STATUS_ACCESS_DENIED &&
+ (requestedPerms & FILE_READ_DATA)) {
+ /* This happens on encrypted files. */
+ requestedPerms &= ~FILE_READ_DATA;
+ goto retry_open;
+ }
+
+ winnt_error(status, L"\"%ls\": Can't open file",
+ printable_path(full_path));
+ if (status == STATUS_FVE_LOCKED_VOLUME)
+ ret = WIMLIB_ERR_FVE_LOCKED_VOLUME;
+ else
+ ret = WIMLIB_ERR_OPEN;
goto out;
}
if (unlikely(!NT_SUCCESS(status) &&
status != STATUS_BUFFER_OVERFLOW))
{
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Can't get file information "
- "(status=0x%08"PRIx32")",
- printable_path(full_path), (u32)status);
+ winnt_error(status,
+ L"\"%ls\": Can't get file information",
+ printable_path(full_path));
ret = WIMLIB_ERR_STAT;
goto out;
}
}
+ if (unlikely(!(requestedPerms & FILE_READ_DATA)) &&
+ !(file_info.BasicInformation.FileAttributes & FILE_ATTRIBUTE_ENCRYPTED))
+ {
+ ERROR("\"%ls\": Permission to read data was denied",
+ printable_path(full_path));
+ ret = WIMLIB_ERR_OPEN;
+ goto out;
+ }
+
if (unlikely(!cur_dir)) {
/* Root of tree being captured; get volume information. */
{
vol_flags = attr_info.FileSystemAttributes;
} else {
- set_errno_from_nt_status(status);
- WARNING_WITH_ERRNO("\"%ls\": Can't get volume attributes "
- "(status=0x%08"PRIx32")",
- printable_path(full_path),
- (u32)status);
+ winnt_warning(status,
+ L"\"%ls\": Can't get volume attributes",
+ printable_path(full_path));
vol_flags = 0;
}
{
params->capture_root_dev = vol_info.VolumeSerialNumber;
} else {
- set_errno_from_nt_status(status);
- WARNING_WITH_ERRNO("\"%ls\": Can't get volume ID "
- "(status=0x%08"PRIx32")",
- printable_path(full_path),
- (u32)status);
+ winnt_warning(status, L"\"%ls\": Can't get volume ID",
+ printable_path(full_path));
params->capture_root_dev = 0;
}
}
not_rpfixed = 1;
break;
default:
- ERROR_WITH_ERRNO("\"%ls\": Can't get reparse data",
- printable_path(full_path));
goto out;
}
}
params->sd_set, stats,
params->add_flags);
if (!NT_SUCCESS(status)) {
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Can't read security "
- "descriptor (status=0x%08"PRIx32")",
- printable_path(full_path),
- (u32)status);
+ winnt_error(status,
+ L"\"%ls\": Can't read security descriptor",
+ printable_path(full_path));
ret = WIMLIB_ERR_STAT;
goto out;
}
/* Load information about the unnamed data stream and any named data
* streams. */
- ret = winnt_scan_streams(&h,
+ ret = winnt_scan_streams(h,
full_path,
full_path_nchars,
inode,
if (ret)
goto out;
- if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
-
- /* Reparse point: set the reparse data (already read). */
-
- inode->i_not_rpfixed = not_rpfixed;
- inode->i_reparse_tag = le32_to_cpu(*(le32*)rpbuf);
- ret = inode_set_unnamed_stream(inode, rpbuf + 8, rpbuflen - 8,
- params->lookup_table);
+ if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED)) {
+ /* Load information about the raw encrypted data. This is
+ * needed for any directory or non-directory that has
+ * FILE_ATTRIBUTE_ENCRYPTED set.
+ *
+ * Note: since OpenEncryptedFileRaw() fails with
+ * ERROR_SHARING_VIOLATION if there are any open handles to the
+ * file, we have to close the file and re-open it later if
+ * needed. */
+ (*func_NtClose)(h);
+ h = NULL;
+ ret = winnt_load_encrypted_stream_info(inode, full_path,
+ params->unhashed_streams);
if (ret)
goto out;
+ }
+
+ if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
+ if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED)) {
+ WARNING("Ignoring reparse data of encrypted reparse point file \"%ls\"",
+ printable_path(full_path));
+ } else {
+ /* Reparse point: set the reparse data (already read). */
+
+ inode->i_not_rpfixed = not_rpfixed;
+ inode->i_reparse_tag = le32_to_cpu(*(le32*)rpbuf);
+ ret = inode_set_unnamed_stream(inode, rpbuf + 8, rpbuflen - 8,
+ params->lookup_table);
+ if (ret)
+ goto out;
+ }
} else if (inode->i_attributes & FILE_ATTRIBUTE_DIRECTORY) {
/* Directory: recurse to children. */
- if (unlikely(h == INVALID_HANDLE_VALUE)) {
+ if (unlikely(!h)) {
/* Re-open handle that was closed to read raw encrypted
* data. */
status = winnt_openat(cur_dir,
FILE_LIST_DIRECTORY | SYNCHRONIZE,
&h);
if (!NT_SUCCESS(status)) {
- set_errno_from_nt_status(status);
- ERROR_WITH_ERRNO("\"%ls\": Can't re-open file "
- "(status=0x%08"PRIx32")",
- printable_path(full_path),
- (u32)status);
+ winnt_error(status,
+ L"\"%ls\": Can't re-open file",
+ printable_path(full_path));
ret = WIMLIB_ERR_OPEN;
goto out;
}
else
ret = do_capture_progress(params, WIMLIB_SCAN_DENTRY_EXCLUDED, NULL);
out:
- if (likely(h != INVALID_HANDLE_VALUE))
+ if (likely(h))
(*func_NtClose)(h);
if (unlikely(ret)) {
free_dentry_tree(root, params->lookup_table);
git://wimlib.net / wimlib / blobdiff