#include "lookup_table.h"
#include "security.h"
#include "endianness.h"
+#include "buffer_io.h"
#include <pthread.h>
#include <errno.h>
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 wim_inode_table *inode_table,
- struct sd_set *sd_set,
- const struct wimlib_capture_config *config,
- int add_image_flags,
- wimlib_progress_func_t progress_func,
+ struct add_image_params *params,
struct win32_capture_state *state,
unsigned vol_flags);
win32_recurse_directory(struct wim_dentry *root,
wchar_t *dir_path,
size_t dir_path_num_chars,
- struct wim_lookup_table *lookup_table,
- struct wim_inode_table *inode_table,
- struct sd_set *sd_set,
- const struct wimlib_capture_config *config,
- int add_image_flags,
- wimlib_progress_func_t progress_func,
+ struct add_image_params *params,
struct win32_capture_state *state,
unsigned vol_flags)
{
ret = win32_build_dentry_tree_recursive(&child,
dir_path,
path_len,
- lookup_table,
- inode_table,
- sd_set,
- config,
- add_image_flags,
- progress_func,
+ params,
state,
vol_flags);
dir_path[dir_path_num_chars] = L'\0';
return ret;
}
+int
+win32_get_file_and_vol_ids(const wchar_t *path, u64 *ino_ret, u64 *dev_ret)
+{
+ HANDLE hFile;
+ DWORD err;
+ BY_HANDLE_FILE_INFORMATION file_info;
+ int ret;
+
+ hFile = win32_open_existing_file(path, FILE_READ_ATTRIBUTES);
+ if (hFile == INVALID_HANDLE_VALUE) {
+ err = GetLastError();
+ WARNING("Failed to open \"%ls\" to get file and volume IDs",
+ path);
+ win32_error(err);
+ return WIMLIB_ERR_OPEN;
+ }
+
+ if (!GetFileInformationByHandle(hFile, &file_info)) {
+ err = GetLastError();
+ ERROR("Failed to get file information for \"%ls\"", path);
+ win32_error(err);
+ ret = WIMLIB_ERR_STAT;
+ } else {
+ *ino_ret = ((u64)file_info.nFileIndexHigh << 32) |
+ (u64)file_info.nFileIndexLow;
+ *dev_ret = file_info.dwVolumeSerialNumber;
+ ret = 0;
+ }
+ CloseHandle(hFile);
+ return ret;
+}
+
+enum rp_status {
+ RP_EXCLUDED = 0x0,
+ RP_NOT_FIXED = 0x1,
+ RP_FIXED_FULLPATH = 0x2,
+ RP_FIXED_ABSPATH = 0x4,
+ RP_FIXED = RP_FIXED_FULLPATH | RP_FIXED_ABSPATH,
+};
+
+static enum rp_status
+win32_maybe_rpfix_target(wchar_t *target, size_t *target_nchars_p,
+ u64 capture_root_ino, u64 capture_root_dev)
+{
+ size_t target_nchars= *target_nchars_p;
+ size_t stripped_chars;
+ wchar_t *orig_target;
+
+ if (target_nchars == 0)
+ return RP_NOT_FIXED;
+
+ if (target[0] == L'\\') {
+ if (target_nchars >= 2 && target[1] == L'\\') {
+ /* Probaby a volume. Can't do anything with it. */
+ DEBUG("Not fixing target (probably a volume)");
+ return RP_NOT_FIXED;
+ } else if (target_nchars >= 7 &&
+ target[1] == '?' &&
+ target[2] == '?' &&
+ target[3] == '\\' &&
+ target[4] != '\0' &&
+ target[5] == ':' &&
+ target[6] == '\\')
+ {
+ DEBUG("Full style path");
+ /* Full \??\x:\ style path (may be junction or symlink)
+ * */
+ stripped_chars = 4;
+ } else {
+ DEBUG("Absolute target without drive letter");
+ /* Absolute target, without drive letter */
+ stripped_chars = 0;
+ }
+ } else if (target_nchars >= 3 &&
+ target[0] != L'\0' &&
+ target[1] == L':' &&
+ target[2] == L'\\')
+ {
+ DEBUG("Absolute target with drive letter");
+ /* Absolute target, with drive letter */
+ stripped_chars = 0;
+ } else {
+ DEBUG("Relative symlink or other link");
+ /* Relative symlink or other unexpected format */
+ return RP_NOT_FIXED;
+ }
+ target[target_nchars] = L'\0';
+ orig_target = target;
+ target = fixup_symlink(target + stripped_chars, capture_root_ino, capture_root_dev);
+ if (target) {
+ target_nchars = wcslen(target);
+ wmemmove(orig_target + stripped_chars, target, target_nchars + 1);
+ *target_nchars_p = target_nchars + stripped_chars;
+ DEBUG("Fixed reparse point (new target: \"%ls\")", orig_target);
+ return stripped_chars ? RP_FIXED_FULLPATH : RP_FIXED_ABSPATH;
+ } else {
+ return RP_EXCLUDED;
+ }
+}
+
+static enum rp_status
+win32_do_capture_rpfix(char *rpbuf, DWORD *rpbuflen_p,
+ u64 capture_root_ino, u64 capture_root_dev)
+{
+ const char *p_get;
+ char *p_put;
+ u16 substitute_name_offset;
+ u16 substitute_name_len;
+ wchar_t *target;
+ size_t target_nchars;
+ enum rp_status status;
+ u32 rptag;
+ DWORD rpbuflen = *rpbuflen_p;
+
+ if (rpbuflen < 16)
+ return RP_EXCLUDED;
+ p_get = get_u32(rpbuf, &rptag);
+ p_get += 4;
+ p_get = get_u16(p_get, &substitute_name_offset);
+ p_get = get_u16(p_get, &substitute_name_len);
+ p_get += 4;
+ if ((size_t)substitute_name_offset + substitute_name_len > rpbuflen)
+ return RP_EXCLUDED;
+ if (rptag == WIM_IO_REPARSE_TAG_SYMLINK) {
+ if (rpbuflen < 20)
+ return RP_EXCLUDED;
+ p_get += 4;
+ }
+
+
+ target = (wchar_t*)&p_get[substitute_name_offset];
+ target_nchars = substitute_name_len / 2;
+ /* Note: target is not necessarily null-terminated */
+
+ status = win32_maybe_rpfix_target(target, &target_nchars,
+ capture_root_ino, capture_root_dev);
+ if (status & RP_FIXED) {
+ size_t target_nbytes = target_nchars * 2;
+ size_t print_nbytes = target_nbytes;
+ wchar_t target_copy[target_nchars];
+ wchar_t *print_name = target_copy;
+
+ if (status == RP_FIXED_FULLPATH) {
+ print_nbytes -= 8;
+ print_name += 4;
+ }
+ wmemcpy(target_copy, target, target_nchars);
+ p_put = rpbuf + 8;
+ p_put = put_u16(p_put, 0); /* Substitute name offset */
+ p_put = put_u16(p_put, target_nbytes); /* Substitute name length */
+ p_put = put_u16(p_put, target_nbytes + 2); /* Print name offset */
+ p_put = put_u16(p_put, print_nbytes); /* Print name length */
+ if (rptag == WIM_IO_REPARSE_TAG_SYMLINK)
+ p_put = put_u32(p_put, 1);
+ p_put = put_bytes(p_put, target_nbytes, target_copy);
+ p_put = put_u16(p_put, 0);
+ p_put = put_bytes(p_put, print_nbytes, print_name);
+ p_put = put_u16(p_put, 0);
+ rpbuflen = p_put - rpbuf;
+ put_u16(rpbuf + 4, rpbuflen - 8);
+ *rpbuflen_p = rpbuflen;
+ }
+ return status;
+}
+
/* Load a reparse point into a WIM inode. It is just stored in memory.
*
* @hFile: Open handle to a reparse point, with permission to read the reparse
*
* Returns 0 on success; nonzero on failure. */
static int
-win32_capture_reparse_point(HANDLE hFile,
+win32_capture_reparse_point(struct wim_dentry **root_p,
+ HANDLE hFile,
struct wim_inode *inode,
- struct wim_lookup_table *lookup_table,
- const wchar_t *path)
+ const wchar_t *path,
+ struct add_image_params *params)
{
DEBUG("Capturing reparse point \"%ls\"", path);
/* "Reparse point data, including the tag and optional GUID,
* cannot exceed 16 kilobytes." - MSDN */
- char reparse_point_buf[16 * 1024];
+ char reparse_point_buf[REPARSE_POINT_MAX_SIZE];
DWORD bytesReturned;
+ char *fixed_buf;
+ DWORD fixed_len;
if (!DeviceIoControl(hFile, FSCTL_GET_REPARSE_POINT,
NULL, /* "Not used with this operation; set to NULL" */
return WIMLIB_ERR_READ;
}
inode->i_reparse_tag = le32_to_cpu(*(u32*)reparse_point_buf);
- return inode_add_ads_with_data(inode, L"",
- reparse_point_buf + 8,
- bytesReturned - 8, lookup_table);
+
+ if (params->add_image_flags & WIMLIB_ADD_IMAGE_FLAG_RPFIX &&
+ (inode->i_reparse_tag == WIM_IO_REPARSE_TAG_SYMLINK ||
+ inode->i_reparse_tag == WIM_IO_REPARSE_TAG_MOUNT_POINT))
+ {
+ enum rp_status status;
+ status = win32_do_capture_rpfix(reparse_point_buf,
+ &bytesReturned,
+ params->capture_root_ino,
+ params->capture_root_dev);
+ if (status == RP_EXCLUDED) {
+ free_dentry(*root_p);
+ *root_p = NULL;
+ return 0;
+ } else if (status & RP_FIXED) {
+ inode->i_not_rpfixed = 0;
+ }
+ }
+ return inode_add_ads_with_data(inode, L"", reparse_point_buf + 8,
+ bytesReturned - 8, params->lookup_table);
}
/* Scans an unnamed or named stream of a Win32 file (not a reparse point
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 wim_inode_table *inode_table,
- struct sd_set *sd_set,
- const struct wimlib_capture_config *config,
- int add_image_flags,
- wimlib_progress_func_t progress_func,
+ struct add_image_params *params,
struct win32_capture_state *state,
unsigned vol_flags)
{
u64 file_size;
int ret = 0;
- if (exclude_path(path, path_num_chars, config, true)) {
- if (add_image_flags & WIMLIB_ADD_IMAGE_FLAG_ROOT) {
+ if (exclude_path(path, path_num_chars, params->config, true)) {
+ if (params->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_EXCLUDE_VERBOSE)
- && progress_func)
+ if ((params->add_image_flags & WIMLIB_ADD_IMAGE_FLAG_EXCLUDE_VERBOSE)
+ && params->progress_func)
{
union wimlib_progress_info info;
info.scan.cur_path = path;
info.scan.excluded = true;
- progress_func(WIMLIB_PROGRESS_MSG_SCAN_DENTRY, &info);
+ params->progress_func(WIMLIB_PROGRESS_MSG_SCAN_DENTRY, &info);
}
goto out;
}
- if ((add_image_flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE)
- && progress_func)
+ if ((params->add_image_flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE)
+ && params->progress_func)
{
union wimlib_progress_info info;
info.scan.cur_path = path;
info.scan.excluded = false;
- progress_func(WIMLIB_PROGRESS_MSG_SCAN_DENTRY, &info);
+ params->progress_func(WIMLIB_PROGRESS_MSG_SCAN_DENTRY, &info);
}
HANDLE hFile = win32_open_existing_file(path,
}
/* Create a WIM dentry with an associated inode, which may be shared */
- ret = inode_table_new_dentry(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,
inode->i_last_access_time = FILETIME_to_u64(&file_info.ftLastAccessTime);
inode->i_resolved = 1;
- add_image_flags &= ~(WIMLIB_ADD_IMAGE_FLAG_ROOT | WIMLIB_ADD_IMAGE_FLAG_SOURCE);
+ params->add_image_flags &= ~(WIMLIB_ADD_IMAGE_FLAG_ROOT | WIMLIB_ADD_IMAGE_FLAG_SOURCE);
- if (!(add_image_flags & WIMLIB_ADD_IMAGE_FLAG_NO_ACLS)
+ if (!(params->add_image_flags & WIMLIB_ADD_IMAGE_FLAG_NO_ACLS)
&& (vol_flags & FILE_PERSISTENT_ACLS))
{
- ret = win32_get_security_descriptor(root, sd_set, path, state,
- add_image_flags);
+ ret = win32_get_security_descriptor(root, params->sd_set,
+ path, state,
+ params->add_image_flags);
if (ret)
goto out_close_handle;
}
ret = win32_capture_streams(path,
path_num_chars,
inode,
- lookup_table,
+ params->lookup_table,
file_size,
vol_flags);
if (ret)
ret = win32_recurse_directory(root,
path,
path_num_chars,
- lookup_table,
- inode_table,
- sd_set,
- config,
- add_image_flags,
- progress_func,
+ params,
state,
vol_flags);
} else if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
/* 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,
- path);
+ ret = win32_capture_reparse_point(&root, hFile, inode, path, params);
} else {
/* Not a directory, not a reparse point; capture the default
* file contents and any alternate data streams. */
ret = win32_capture_streams(path,
path_num_chars,
inode,
- lookup_table,
+ params->lookup_table,
file_size,
vol_flags);
}
if (ret == 0)
*root_ret = root;
else
- free_dentry_tree(root, lookup_table);
+ free_dentry_tree(root, params->lookup_table);
return ret;
}
int
win32_build_dentry_tree(struct wim_dentry **root_ret,
const wchar_t *root_disk_path,
- struct wim_lookup_table *lookup_table,
- struct wim_inode_table *inode_table,
- struct sd_set *sd_set,
- const struct wimlib_capture_config *config,
- int add_image_flags,
- wimlib_progress_func_t progress_func,
- void *extra_arg)
+ struct add_image_params *params)
{
size_t path_nchars;
wchar_t *path;
struct win32_capture_state state;
unsigned vol_flags;
+
path_nchars = wcslen(root_disk_path);
if (path_nchars > 32767)
return WIMLIB_ERR_INVALID_PARAM;
+ ret = win32_get_file_and_vol_ids(root_disk_path,
+ ¶ms->capture_root_ino,
+ ¶ms->capture_root_dev);
+ if (ret)
+ return ret;
+
win32_get_vol_flags(root_disk_path, &vol_flags);
/* There is no check for overflow later when this buffer is being used!
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,
- inode_table,
- sd_set,
- config,
- add_image_flags,
- progress_func,
- &state,
- vol_flags);
+ ret = win32_build_dentry_tree_recursive(root_ret, path,
+ path_nchars, params,
+ &state, vol_flags);
FREE(path);
if (ret == 0)
- win32_do_capture_warnings(&state, add_image_flags);
+ win32_do_capture_warnings(&state, params->add_image_flags);
return ret;
}
do_win32_extract_encrypted_stream(const wchar_t *path,
const struct wim_lookup_table_entry *lte)
{
- ERROR("Extrat encryted streams not implemented");
+ ERROR("Extracting encryted streams not implemented");
return WIMLIB_ERR_INVALID_PARAM;
}
vol_flags);
if (ret)
goto out;
- if (unnamed_lte)
+ if (unnamed_lte && inode->i_extracted_file == NULL)
*completed_bytes_p += wim_resource_size(unnamed_lte);
if (!(vol_flags & FILE_NAMED_STREAMS))
vol_flags);
if (ret)
break;
- if (ads_entry->lte)
+ if (ads_entry->lte && inode->i_extracted_file == NULL)
*completed_bytes_p += wim_resource_size(ads_entry->lte);
}
}
} else {
WARNING("Can't create hard link \"%ls => %ls\":\n"
" Volume does not support hard links!\n"
- " Falling back to extracting a copy of the file.");
+ " Falling back to extracting a copy of the file.",
+ output_path, inode->i_extracted_file);
}
}
+
+ if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT &&
+ !(args->vol_flags & FILE_SUPPORTS_REPARSE_POINTS))
+ {
+ WARNING("Skipping extraction of reparse point \"%ls\":\n"
+ " Not supported by destination filesystem",
+ output_path);
+ struct wim_lookup_table_entry *lte;
+ lte = inode_unnamed_lte_resolved(inode);
+ if (lte)
+ args->progress.extract.completed_bytes += wim_resource_size(lte);
+ return 0;
+ }
+
/* Create the file, directory, or reparse point, and extract the
* data streams. */
ret = win32_extract_streams(inode, output_path,
HANDLE h;
const struct wim_inode *inode = dentry->d_inode;
+ if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT &&
+ !(args->vol_flags & FILE_SUPPORTS_REPARSE_POINTS))
+ {
+ /* Skip reparse points not extracted */
+ return 0;
+ }
+
+ /* Windows doesn't let you change the timestamps of the root directory
+ * (at least on FAT, which is dumb but expected since FAT doesn't store
+ * any metadata about the root directory...) */
+ if (path_is_root_of_drive(path))
+ return 0;
+
DEBUG("Opening \"%ls\" to set timestamps", path);
h = win32_open_existing_file(path, FILE_WRITE_ATTRIBUTES);
if (h == INVALID_HANDLE_VALUE) {
git://wimlib.net / wimlib / blobdiff