Windows: improved error messages
[wimlib] / src / win32_apply.c
index 4b6c5c6..630a77f 100644 (file)
@@ -3,7 +3,7 @@
  */
 
 /*
- * 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/apply.h"
+#include "wimlib/assert.h"
 #include "wimlib/capture.h" /* for mangle_pat() and match_pattern_list()  */
 #include "wimlib/dentry.h"
 #include "wimlib/error.h"
 #include "wimlib/lookup_table.h"
 #include "wimlib/metadata.h"
+#include "wimlib/paths.h"
 #include "wimlib/reparse.h"
 #include "wimlib/textfile.h"
 #include "wimlib/xml.h"
@@ -176,11 +178,9 @@ get_vol_flags(const wchar_t *target, DWORD *vol_flags_ret,
                                  vol_flags_ret, filesystem_name,
                                  ARRAY_LEN(filesystem_name)))
        {
-               DWORD err = GetLastError();
-               set_errno_from_win32_error(err);
-               WARNING_WITH_ERRNO("Failed to get volume information for "
-                                  "\"%ls\" (err=%"PRIu32")",
-                                  target, (u32)err);
+               win32_warning(GetLastError(),
+                             L"Failed to get volume information for \"%ls\"",
+                             target);
                return;
        }
 
@@ -480,10 +480,8 @@ set_external_backing(HANDLE h, struct wim_inode *inode, struct win32_apply_ctx *
                        const DWORD err = GetLastError();
 
                        build_extraction_path(inode_first_extraction_dentry(inode), ctx);
-                       set_errno_from_win32_error(err);
-                       ERROR_WITH_ERRNO("\"%ls\": Couldn't set WIMBoot "
-                                        "pointer data (err=%"PRIu32")",
-                                        current_path(ctx), (u32)err);
+                       win32_error(err, L"\"%ls\": Couldn't set WIMBoot pointer data",
+                                   current_path(ctx));
                        return WIMLIB_ERR_WIMBOOT;
                }
                return 0;
@@ -591,10 +589,9 @@ out_unload_key:
 out_check_res:
        if (res) {
                /* Warning only.  */
-               set_errno_from_win32_error(res);
-               WARNING_WITH_ERRNO("Failed to set \\Setup: dword \"WimBoot\"=1 value "
-                                  "in registry hive \"%ls\" (err=%"PRIu32")",
-                                  ctx->pathbuf.Buffer, (u32)res);
+               win32_warning(res, L"Failed to set \\Setup: dword \"WimBoot\"=1 "
+                             "value in registry hive \"%ls\"",
+                             ctx->pathbuf.Buffer);
        }
 out:
        return 0;
@@ -761,26 +758,19 @@ current_path(struct win32_apply_ctx *ctx)
        return ctx->print_buffer;
 }
 
-/*
- * Ensures the target directory exists and opens a handle to it, in preparation
- * of using paths relative to it.
- */
+/* Open handle to the target directory if it is not already open.  If the target
+ * directory does not exist, this creates it.  */
 static int
-prepare_target(struct list_head *dentry_list, struct win32_apply_ctx *ctx)
+open_target_directory(struct win32_apply_ctx *ctx)
 {
-       int ret;
        NTSTATUS status;
-       size_t path_max;
-
-       /* Open handle to the target directory (possibly creating it).  */
 
-       ret = win32_path_to_nt_path(ctx->common.target, &ctx->target_ntpath);
-       if (ret)
-               return ret;
+       if (ctx->h_target)
+               return 0;
 
        ctx->attr.Length = sizeof(ctx->attr);
+       ctx->attr.RootDirectory = NULL;
        ctx->attr.ObjectName = &ctx->target_ntpath;
-
        status = (*func_NtCreateFile)(&ctx->h_target,
                                      FILE_TRAVERSE,
                                      &ctx->attr,
@@ -794,17 +784,45 @@ prepare_target(struct list_head *dentry_list, struct win32_apply_ctx *ctx)
                                              FILE_OPEN_FOR_BACKUP_INTENT,
                                      NULL,
                                      0);
-
        if (!NT_SUCCESS(status)) {
-               set_errno_from_nt_status(status);
-               ERROR_WITH_ERRNO("Can't open or create directory \"%ls\" "
-                                "(status=0x%08"PRIx32")",
-                                ctx->common.target, (u32)status);
+               winnt_error(status, L"Can't open or create directory \"%ls\"",
+                           ctx->common.target);
                return WIMLIB_ERR_OPENDIR;
        }
+       ctx->attr.RootDirectory = ctx->h_target;
+       ctx->attr.ObjectName = &ctx->pathbuf;
+       return 0;
+}
 
-       path_max = compute_path_max(dentry_list);
+static void
+close_target_directory(struct win32_apply_ctx *ctx)
+{
+       if (ctx->h_target) {
+               (*func_NtClose)(ctx->h_target);
+               ctx->h_target = NULL;
+               ctx->attr.RootDirectory = NULL;
+       }
+}
 
+/*
+ * Ensures the target directory exists and opens a handle to it, in preparation
+ * of using paths relative to it.
+ */
+static int
+prepare_target(struct list_head *dentry_list, struct win32_apply_ctx *ctx)
+{
+       int ret;
+       size_t path_max;
+
+       ret = win32_path_to_nt_path(ctx->common.target, &ctx->target_ntpath);
+       if (ret)
+               return ret;
+
+       ret = open_target_directory(ctx);
+       if (ret)
+               return ret;
+
+       path_max = compute_path_max(dentry_list);
        /* Add some extra for building Win32 paths for the file encryption APIs,
         * and ensure we have at least enough to potentially use a 8.3 name for
         * the last component.  */
@@ -816,9 +834,6 @@ prepare_target(struct list_head *dentry_list, struct win32_apply_ctx *ctx)
        if (!ctx->pathbuf.Buffer)
                return WIMLIB_ERR_NOMEM;
 
-       ctx->attr.RootDirectory = ctx->h_target;
-       ctx->attr.ObjectName = &ctx->pathbuf;
-
        ctx->print_buffer = MALLOC((ctx->common.target_nchars + 1 + path_max + 1) *
                                   sizeof(wchar_t));
        if (!ctx->print_buffer)
@@ -901,81 +916,11 @@ adjust_compression_attribute(HANDLE h, const struct wim_dentry *dentry,
        if (NT_SUCCESS(status))
                return 0;
 
-       set_errno_from_nt_status(status);
-       ERROR_WITH_ERRNO("Can't %s compression attribute on \"%ls\" "
-                        "(status=0x%08"PRIx32")",
-                        (compressed ? "set" : "clear"),
-                        current_path(ctx), status);
+       winnt_error(status, L"Can't %s compression attribute on \"%ls\"",
+                   (compressed ? "set" : "clear"), current_path(ctx));
        return WIMLIB_ERR_SET_ATTRIBUTES;
 }
 
-/*
- * Clear FILE_ATTRIBUTE_ENCRYPTED if the file or directory is not supposed to be
- * encrypted.
- *
- * You can provide FILE_ATTRIBUTE_ENCRYPTED to NtCreateFile() to set it on the
- * created file.  However, the file or directory will otherwise default to the
- * encryption state of the parent directory.  This function works around this
- * limitation by using DecryptFile() to remove FILE_ATTRIBUTE_ENCRYPTED on files
- * (and directories) that are not supposed to have it set.
- *
- * Regardless of whether it succeeds or fails, this function may close the
- * handle to the file.  If it does, it sets it to NULL.
- */
-static int
-maybe_clear_encryption_attribute(HANDLE *h_ptr, const struct wim_dentry *dentry,
-                                struct win32_apply_ctx *ctx)
-{
-       if (dentry->d_inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED)
-               return 0;
-
-       if (ctx->common.extract_flags & WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES)
-               return 0;
-
-       if (!ctx->common.supported_features.encrypted_files)
-               return 0;
-
-       FILE_BASIC_INFORMATION info;
-       NTSTATUS status;
-       BOOL bret;
-
-       /* Get current attributes  */
-       status = (*func_NtQueryInformationFile)(*h_ptr, &ctx->iosb,
-                                               &info, sizeof(info),
-                                               FileBasicInformation);
-       if (NT_SUCCESS(status) &&
-           !(info.FileAttributes & FILE_ATTRIBUTE_ENCRYPTED))
-       {
-               /* Nothing needs to be done.  */
-               return 0;
-       }
-
-       /* Set the new encryption state  */
-
-       /* Due to Windows' crappy file encryption APIs, we need to close the
-        * handle to the file so we don't get ERROR_SHARING_VIOLATION.  We also
-        * hack together a Win32 path, although we will use the \\?\ prefix so
-        * it will actually be a NT path in disguise...  */
-       (*func_NtClose)(*h_ptr);
-       *h_ptr = NULL;
-
-       build_win32_extraction_path(dentry, ctx);
-
-       bret = DecryptFile(ctx->pathbuf.Buffer, 0);
-
-       /* Restore the NT namespace path  */
-       build_extraction_path(dentry, ctx);
-
-       if (!bret) {
-               DWORD err = GetLastError();
-               set_errno_from_win32_error(err);
-               ERROR_WITH_ERRNO("Can't decrypt file \"%ls\" (err=%"PRIu32")",
-                                 current_path(ctx), (u32)err);
-               return WIMLIB_ERR_SET_ATTRIBUTES;
-       }
-       return 0;
-}
-
 /* Try to enable short name support on the target volume.  If successful, return
  * true.  If unsuccessful, issue a warning and return false.  */
 static bool
@@ -1008,8 +953,9 @@ try_to_enable_short_names(const wchar_t *volume)
        return true;
 
 fail:
-       WARNING("Failed to enable short name support on %ls "
-               "(err=%"PRIu32")", volume + 4, (u32)GetLastError());
+       win32_warning(GetLastError(),
+                     L"Failed to enable short name support on %ls",
+                     volume + 4);
        return false;
 }
 
@@ -1041,8 +987,7 @@ remove_conflicting_short_name(const struct wim_dentry *dentry, struct win32_appl
                                    FILE_SHARE_VALID_FLAGS,
                                    FILE_OPEN_REPARSE_POINT | FILE_OPEN_FOR_BACKUP_INTENT);
        if (!NT_SUCCESS(status)) {
-               WARNING("Can't open \"%ls\" (status=0x%08"PRIx32")",
-                       current_path(ctx), (u32)status);
+               winnt_warning(status, L"Can't open \"%ls\"", current_path(ctx));
                goto out;
        }
 
@@ -1181,13 +1126,7 @@ retry:
                return 0;
        }
 
-       if (status == STATUS_SHORT_NAMES_NOT_ENABLED_ON_VOLUME) {
-               ERROR("Can't set short name when short "
-                     "names are not enabled on the volume!");
-       } else {
-               ERROR("Can't set short name on \"%ls\" (status=0x%08"PRIx32")",
-                     current_path(ctx), (u32)status);
-       }
+       winnt_error(status, L"Can't set short name on \"%ls\"", current_path(ctx));
        return WIMLIB_ERR_SET_SHORT_NAME;
 }
 
@@ -1244,6 +1183,116 @@ create_file(PHANDLE FileHandle,
                              ctx);
 }
 
+static int
+delete_file_or_stream(struct win32_apply_ctx *ctx)
+{
+       NTSTATUS status;
+       HANDLE h;
+       FILE_DISPOSITION_INFORMATION disposition_info;
+       FILE_BASIC_INFORMATION basic_info;
+       bool retried = false;
+
+       status = do_create_file(&h,
+                               DELETE,
+                               NULL,
+                               0,
+                               FILE_OPEN,
+                               FILE_NON_DIRECTORY_FILE,
+                               ctx);
+       if (unlikely(!NT_SUCCESS(status))) {
+               winnt_error(status, L"Can't open \"%ls\" for deletion",
+                           current_path(ctx));
+               return WIMLIB_ERR_OPEN;
+       }
+
+retry:
+       disposition_info.DoDeleteFile = TRUE;
+       status = (*func_NtSetInformationFile)(h, &ctx->iosb,
+                                             &disposition_info,
+                                             sizeof(disposition_info),
+                                             FileDispositionInformation);
+       (*func_NtClose)(h);
+       if (likely(NT_SUCCESS(status)))
+               return 0;
+
+       if (status == STATUS_CANNOT_DELETE && !retried) {
+               /* Clear file attributes and try again.  This is necessary for
+                * FILE_ATTRIBUTE_READONLY files.  */
+               status = do_create_file(&h,
+                                       FILE_WRITE_ATTRIBUTES | DELETE,
+                                       NULL,
+                                       0,
+                                       FILE_OPEN,
+                                       FILE_NON_DIRECTORY_FILE,
+                                       ctx);
+               if (!NT_SUCCESS(status)) {
+                       winnt_error(status,
+                                   L"Can't open \"%ls\" to reset attributes",
+                                   current_path(ctx));
+                       return WIMLIB_ERR_OPEN;
+               }
+               memset(&basic_info, 0, sizeof(basic_info));
+               basic_info.FileAttributes = FILE_ATTRIBUTE_NORMAL;
+               status = (*func_NtSetInformationFile)(h, &ctx->iosb,
+                                                     &basic_info,
+                                                     sizeof(basic_info),
+                                                     FileBasicInformation);
+               if (!NT_SUCCESS(status)) {
+                       winnt_error(status,
+                                   L"Can't reset file attributes on \"%ls\"",
+                                   current_path(ctx));
+                       (*func_NtClose)(h);
+                       return WIMLIB_ERR_SET_ATTRIBUTES;
+               }
+               retried = true;
+               goto retry;
+       }
+       winnt_error(status, L"Can't delete \"%ls\"", current_path(ctx));
+       return WIMLIB_ERR_OPEN;
+}
+
+/*
+ * Create a nondirectory file or named data stream at the current path,
+ * superseding any that already exists at that path.  If successful, return an
+ * open handle to the file or named data stream.
+ */
+static int
+supersede_file_or_stream(struct win32_apply_ctx *ctx, HANDLE *h_ret)
+{
+       NTSTATUS status;
+       bool retried = false;
+
+       /* FILE_ATTRIBUTE_SYSTEM is needed to ensure that
+        * FILE_ATTRIBUTE_ENCRYPTED doesn't get set before we want it to be.  */
+retry:
+       status = do_create_file(h_ret,
+                               GENERIC_READ | GENERIC_WRITE | DELETE,
+                               NULL,
+                               FILE_ATTRIBUTE_SYSTEM,
+                               FILE_CREATE,
+                               FILE_NON_DIRECTORY_FILE,
+                               ctx);
+       if (likely(NT_SUCCESS(status)))
+               return 0;
+
+       /* STATUS_OBJECT_NAME_COLLISION means that the file or stream already
+        * exists.  Delete the existing file or stream, then try again.
+        *
+        * Note: we don't use FILE_OVERWRITE_IF or FILE_SUPERSEDE because of
+        * problems with certain file attributes, especially
+        * FILE_ATTRIBUTE_ENCRYPTED.  FILE_SUPERSEDE is also broken in the
+        * Windows PE ramdisk.  */
+       if (status == STATUS_OBJECT_NAME_COLLISION && !retried) {
+               int ret = delete_file_or_stream(ctx);
+               if (ret)
+                       return ret;
+               retried = true;
+               goto retry;
+       }
+       winnt_error(status, L"Can't create \"%ls\"", current_path(ctx));
+       return WIMLIB_ERR_OPEN;
+}
+
 /* Create empty named data streams.
  *
  * Since these won't have 'struct wim_lookup_table_entry's, they won't show up
@@ -1254,7 +1303,6 @@ create_any_empty_ads(const struct wim_dentry *dentry,
                     struct win32_apply_ctx *ctx)
 {
        const struct wim_inode *inode = dentry->d_inode;
-       LARGE_INTEGER allocation_size;
        bool path_modified = false;
        int ret = 0;
 
@@ -1263,10 +1311,7 @@ create_any_empty_ads(const struct wim_dentry *dentry,
 
        for (u16 i = 0; i < inode->i_num_ads; i++) {
                const struct wim_ads_entry *entry;
-               NTSTATUS status;
                HANDLE h;
-               bool retried;
-               DWORD disposition;
 
                entry = &inode->i_ads_entries[i];
 
@@ -1278,39 +1323,14 @@ create_any_empty_ads(const struct wim_dentry *dentry,
                if (entry->lte)
                        continue;
 
-               /* Probably setting the allocation size to 0 has no effect, but
-                * we might as well try.  */
-               allocation_size.QuadPart = 0;
-
                build_extraction_path_with_ads(dentry, ctx,
                                               entry->stream_name,
                                               entry->stream_name_nbytes /
                                                        sizeof(wchar_t));
                path_modified = true;
-
-               retried = false;
-               disposition = FILE_SUPERSEDE;
-       retry:
-               status = do_create_file(&h, FILE_WRITE_DATA, &allocation_size,
-                                       0, disposition, 0, ctx);
-               if (unlikely(!NT_SUCCESS(status))) {
-                       if (status == STATUS_OBJECT_NAME_NOT_FOUND && !retried) {
-                               /* Workaround for defect in the Windows PE
-                                * in-memory filesystem implementation:
-                                * FILE_SUPERSEDE does not create the file, as
-                                * expected and documented, when the named file
-                                * does not exist.  */
-                               retried = true;
-                               disposition = FILE_CREATE;
-                               goto retry;
-                       }
-                       set_errno_from_nt_status(status);
-                       ERROR_WITH_ERRNO("Can't create \"%ls\" "
-                                        "(status=0x%08"PRIx32")",
-                                        current_path(ctx), (u32)status);
-                       ret = WIMLIB_ERR_OPEN;
+               ret = supersede_file_or_stream(ctx, &h);
+               if (ret)
                        break;
-               }
                (*func_NtClose)(h);
        }
        /* Restore the path to the dentry itself  */
@@ -1333,28 +1353,18 @@ create_directory(const struct wim_dentry *dentry,
        HANDLE h;
        NTSTATUS status;
        int ret;
-       ULONG attrib;
 
-       /* Special attributes:
+       /* DELETE is needed for set_short_name(); GENERIC_READ and GENERIC_WRITE
+        * are needed for adjust_compression_attribute().
         *
-        * Use FILE_ATTRIBUTE_ENCRYPTED if the directory needs to have it set.
-        * This doesn't work for FILE_ATTRIBUTE_COMPRESSED (unfortunately).
-        *
-        * Don't specify FILE_ATTRIBUTE_DIRECTORY; it gets set anyway as a
-        * result of the FILE_DIRECTORY_FILE option.  */
-       attrib = (dentry->d_inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED);
-
-       /* DELETE is needed for set_short_name().
-        * GENERIC_READ and GENERIC_WRITE are needed for
-        * adjust_compression_attribute().  */
+        * FILE_ATTRIBUTE_SYSTEM is needed to ensure that
+        * FILE_ATTRIBUTE_ENCRYPTED doesn't get set before we want it to be.  */
        status = create_file(&h, GENERIC_READ | GENERIC_WRITE | DELETE, NULL,
-                            attrib, FILE_OPEN_IF, FILE_DIRECTORY_FILE,
+                            FILE_ATTRIBUTE_SYSTEM, FILE_OPEN_IF, FILE_DIRECTORY_FILE,
                             dentry, ctx);
        if (!NT_SUCCESS(status)) {
-               set_errno_from_nt_status(status);
-               ERROR_WITH_ERRNO("Can't create directory \"%ls\" "
-                                "(status=0x%08"PRIx32")",
-                                current_path(ctx), (u32)status);
+               winnt_error(status, L"Can't create directory \"%ls\"",
+                           current_path(ctx));
                return WIMLIB_ERR_MKDIR;
        }
 
@@ -1363,12 +1373,7 @@ create_directory(const struct wim_dentry *dentry,
        if (!ret)
                ret = adjust_compression_attribute(h, dentry, ctx);
 
-       if (!ret)
-               ret = maybe_clear_encryption_attribute(&h, dentry, ctx);
-               /* May close the handle!!! */
-
-       if (h)
-               (*func_NtClose)(h);
+       (*func_NtClose)(h);
        return ret;
 }
 
@@ -1421,128 +1426,36 @@ create_directories(struct list_head *dentry_list,
  *
  * On success, returns an open handle to the file in @h_ret, with GENERIC_READ,
  * GENERIC_WRITE, and DELETE access.  Also, the path to the file will be saved
- * in ctx->pathbuf.  On failure, returns WIMLIB_ERR_OPEN.
+ * in ctx->pathbuf.  On failure, returns an error code.
  */
 static int
 create_nondirectory_inode(HANDLE *h_ret, const struct wim_dentry *dentry,
                          struct win32_apply_ctx *ctx)
 {
-       const struct wim_inode *inode;
-       ULONG attrib;
-       NTSTATUS status;
-       bool retried = false;
-       DWORD disposition;
-
-       inode = dentry->d_inode;
+       int ret;
+       HANDLE h;
 
-       /* If the file already exists and has FILE_ATTRIBUTE_SYSTEM and/or
-        * FILE_ATTRIBUTE_HIDDEN, these must be specified in order to supersede
-        * the file.
-        *
-        * Normally the user shouldn't be trying to overwrite such files anyway,
-        * but we at least provide FILE_ATTRIBUTE_SYSTEM and
-        * FILE_ATTRIBUTE_HIDDEN if the WIM inode has those attributes so that
-        * we catch the case where the user extracts the same files to the same
-        * location more than one time.
-        *
-        * Also specify FILE_ATTRIBUTE_ENCRYPTED if the file needs to be
-        * encrypted.
-        *
-        * In NO_ATTRIBUTES mode just don't specify any attributes at all.
-        */
-       if (ctx->common.extract_flags & WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES) {
-               attrib = 0;
-       } else {
-               attrib = (inode->i_attributes & (FILE_ATTRIBUTE_SYSTEM |
-                                                FILE_ATTRIBUTE_HIDDEN |
-                                                FILE_ATTRIBUTE_ENCRYPTED));
-       }
        build_extraction_path(dentry, ctx);
-       disposition = FILE_SUPERSEDE;
-retry:
-       status = do_create_file(h_ret, GENERIC_READ | GENERIC_WRITE | DELETE,
-                               NULL, attrib, disposition,
-                               FILE_NON_DIRECTORY_FILE, ctx);
-       if (likely(NT_SUCCESS(status))) {
-               int ret;
-
-               ret = adjust_compression_attribute(*h_ret, dentry, ctx);
-               if (ret) {
-                       (*func_NtClose)(*h_ret);
-                       return ret;
-               }
-
-               ret = maybe_clear_encryption_attribute(h_ret, dentry, ctx);
-               /* May close the handle!!! */
-
-               if (ret) {
-                       if (*h_ret)
-                               (*func_NtClose)(*h_ret);
-                       return ret;
-               }
-
-               if (!*h_ret) {
-                       /* Re-open the handle so that we can return it on
-                        * success.  */
-                       status = do_create_file(h_ret,
-                                               GENERIC_READ |
-                                                       GENERIC_WRITE | DELETE,
-                                               NULL, 0, FILE_OPEN,
-                                               FILE_NON_DIRECTORY_FILE, ctx);
-                       if (!NT_SUCCESS(status))
-                               goto fail;
-               }
 
-               ret = create_any_empty_ads(dentry, ctx);
-               if (ret) {
-                       (*func_NtClose)(*h_ret);
-                       return ret;
-               }
-               return 0;
-       }
-
-       if (status == STATUS_OBJECT_NAME_NOT_FOUND && !retried) {
-               /* Workaround for defect in the Windows PE in-memory filesystem
-                * implementation: FILE_SUPERSEDE does not create the file, as
-                * expected and documented, when the named file does not exist.
-                */
-               retried = true;
-               disposition = FILE_CREATE;
-               goto retry;
-       }
-
-       if (status == STATUS_ACCESS_DENIED && !retried) {
-               /* We also can't supersede an existing file that has
-                * FILE_ATTRIBUTE_READONLY set; doing so causes NtCreateFile()
-                * to return STATUS_ACCESS_DENIED .  The only workaround seems
-                * to be to explicitly remove FILE_ATTRIBUTE_READONLY on the
-                * existing file, then try again.  */
+       ret = supersede_file_or_stream(ctx, &h);
+       if (ret)
+               goto out;
 
-               FILE_BASIC_INFORMATION info;
-               HANDLE h;
+       ret = adjust_compression_attribute(h, dentry, ctx);
+       if (ret)
+               goto out_close;
 
-               status = do_create_file(&h, FILE_WRITE_ATTRIBUTES, NULL, 0,
-                                       FILE_OPEN, FILE_NON_DIRECTORY_FILE, ctx);
-               if (!NT_SUCCESS(status))
-                       goto fail;
+       ret = create_any_empty_ads(dentry, ctx);
+       if (ret)
+               goto out_close;
 
-               memset(&info, 0, sizeof(info));
-               info.FileAttributes = FILE_ATTRIBUTE_NORMAL;
+       *h_ret = h;
+       return 0;
 
-               status = (*func_NtSetInformationFile)(h, &ctx->iosb,
-                                                     &info, sizeof(info),
-                                                     FileBasicInformation);
-               (*func_NtClose)(h);
-               if (!NT_SUCCESS(status))
-                       goto fail;
-               retried = true;
-               goto retry;
-       }
-fail:
-       set_errno_from_nt_status(status);
-       ERROR_WITH_ERRNO("Can't create file \"%ls\" (status=0x%08"PRIx32")",
-                        current_path(ctx), (u32)status);
-       return WIMLIB_ERR_OPEN;
+out_close:
+       (*func_NtClose)(h);
+out:
+       return ret;
 }
 
 /* Creates a hard link at the location named by @dentry to the file represented
@@ -1578,8 +1491,8 @@ create_link(HANDLE h, const struct wim_dentry *dentry,
                                                      FileLinkInformation);
                if (NT_SUCCESS(status))
                        return 0;
-               ERROR("Failed to create link \"%ls\" (status=0x%08"PRIx32")",
-                     current_path(ctx), (u32)status);
+               winnt_error(status, L"Failed to create link \"%ls\"",
+                           current_path(ctx));
                return WIMLIB_ERR_LINK;
        } else {
                HANDLE h2;
@@ -1735,22 +1648,6 @@ begin_extract_stream_instance(const struct wim_lookup_table_entry *stream,
                build_extraction_path(dentry, ctx);
        }
 
-       /* Reparse point?  */
-       if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT)
-           && (stream_name_nchars == 0))
-       {
-               if (!ctx->common.supported_features.reparse_points)
-                       return 0;
-
-               /* We can't write the reparse stream directly; we must set it
-                * with FSCTL_SET_REPARSE_POINT, which requires that all the
-                * data be available.  So, stage the data in a buffer.  */
-
-               if (!prepare_data_buffer(ctx, stream->size))
-                       return WIMLIB_ERR_NOMEM;
-               list_add_tail(&dentry->tmp_list, &ctx->reparse_dentries);
-               return 0;
-       }
 
        /* Encrypted file?  */
        if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED)
@@ -1776,6 +1673,28 @@ begin_extract_stream_instance(const struct wim_lookup_table_entry *stream,
                return 0;
        }
 
+       /* Reparse point?
+        *
+        * Note: FILE_ATTRIBUTE_REPARSE_POINT is tested *after*
+        * FILE_ATTRIBUTE_ENCRYPTED since the WIM format does not store both EFS
+        * data and reparse data for the same file, and the EFS data takes
+        * precedence.  */
+       if (unlikely(inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT)
+           && (stream_name_nchars == 0))
+       {
+               if (!ctx->common.supported_features.reparse_points)
+                       return 0;
+
+               /* We can't write the reparse stream directly; we must set it
+                * with FSCTL_SET_REPARSE_POINT, which requires that all the
+                * data be available.  So, stage the data in a buffer.  */
+
+               if (!prepare_data_buffer(ctx, stream->size))
+                       return WIMLIB_ERR_NOMEM;
+               list_add_tail(&dentry->tmp_list, &ctx->reparse_dentries);
+               return 0;
+       }
+
        if (ctx->num_open_handles == MAX_OPEN_STREAMS) {
                /* XXX: Fix this.  But because of the checks in
                 * extract_stream_list(), this can now only happen on a
@@ -1792,10 +1711,8 @@ begin_extract_stream_instance(const struct wim_lookup_table_entry *stream,
                                        FILE_SYNCHRONOUS_IO_NONALERT,
                                ctx);
        if (!NT_SUCCESS(status)) {
-               set_errno_from_nt_status(status);
-               ERROR_WITH_ERRNO("Can't open \"%ls\" for writing "
-                                "(status=0x%08"PRIx32")",
-                                current_path(ctx), (u32)status);
+               winnt_error(status, L"Can't open \"%ls\" for writing",
+                           current_path(ctx));
                return WIMLIB_ERR_OPEN;
        }
 
@@ -1852,10 +1769,8 @@ do_set_reparse_data(const struct wim_dentry *dentry,
        }
 
 fail:
-       set_errno_from_nt_status(status);
-       ERROR_WITH_ERRNO("Can't set reparse data on \"%ls\" "
-                        "(status=0x%08"PRIx32")",
-                        current_path(ctx), (u32)status);
+       winnt_error(status, L"Can't set reparse data on \"%ls\"",
+                   current_path(ctx));
        return WIMLIB_ERR_SET_REPARSE_DATA;
 }
 
@@ -2025,31 +1940,49 @@ import_encrypted_data(PBYTE pbData, PVOID pvCallbackContext, PULONG Length)
        return ERROR_SUCCESS;
 }
 
-/* Write the raw encrypted data to the already-created file corresponding to
- * @dentry.
+/*
+ * Write the raw encrypted data to the already-created file (or directory)
+ * corresponding to @dentry.
  *
  * The raw encrypted data is provided in ctx->data_buffer, and its size is
- * ctx->encrypted_size.  */
+ * ctx->encrypted_size.
+ *
+ * This function may close the target directory, in which case the caller needs
+ * to re-open it if needed.
+ */
 static int
 extract_encrypted_file(const struct wim_dentry *dentry,
                       struct win32_apply_ctx *ctx)
 {
        void *rawctx;
        DWORD err;
+       ULONG flags;
+       bool retried;
 
        /* Temporarily build a Win32 path for OpenEncryptedFileRaw()  */
        build_win32_extraction_path(dentry, ctx);
 
-       err = OpenEncryptedFileRaw(ctx->pathbuf.Buffer,
-                                  CREATE_FOR_IMPORT, &rawctx);
+       flags = CREATE_FOR_IMPORT | OVERWRITE_HIDDEN;
+       if (dentry->d_inode->i_attributes & FILE_ATTRIBUTE_DIRECTORY)
+               flags |= CREATE_FOR_DIR;
+
+       retried = false;
+retry:
+       err = OpenEncryptedFileRaw(ctx->pathbuf.Buffer, flags, &rawctx);
+       if (err == ERROR_SHARING_VIOLATION && !retried) {
+               /* This can be caused by the handle we have open to the target
+                * directory.  Try closing it temporarily.  */
+               close_target_directory(ctx);
+               retried = true;
+               goto retry;
+       }
 
        /* Restore the NT namespace path  */
        build_extraction_path(dentry, ctx);
 
        if (err != ERROR_SUCCESS) {
-               set_errno_from_win32_error(err);
-               ERROR_WITH_ERRNO("Can't open \"%ls\" for encrypted import "
-                                "(err=%"PRIu32")", current_path(ctx), (u32)err);
+               win32_error(err, L"Can't open \"%ls\" for encrypted import",
+                           current_path(ctx));
                return WIMLIB_ERR_OPEN;
        }
 
@@ -2060,9 +1993,8 @@ extract_encrypted_file(const struct wim_dentry *dentry,
        CloseEncryptedFileRaw(rawctx);
 
        if (err != ERROR_SUCCESS) {
-               set_errno_from_win32_error(err);
-               ERROR_WITH_ERRNO("Can't import encrypted file \"%ls\" "
-                                "(err=%"PRIu32")", current_path(ctx), (u32)err);
+               win32_error(err, L"Can't import encrypted file \"%ls\"",
+                           current_path(ctx));
                return WIMLIB_ERR_WRITE;
        }
 
@@ -2144,10 +2076,7 @@ extract_chunk(const void *chunk, size_t size, void *_ctx)
                                                     &ctx->iosb, bufptr, count,
                                                     NULL, NULL);
                        if (!NT_SUCCESS(status)) {
-                               set_errno_from_nt_status(status);
-                               ERROR_WITH_ERRNO("Error writing data to target "
-                                                "volume (status=0x%08"PRIx32")",
-                                                (u32)status);
+                               winnt_error(status, L"Error writing data to target volume");
                                return WIMLIB_ERR_WRITE;
                        }
                        bufptr += ctx->iosb.Information;
@@ -2213,6 +2142,10 @@ end_extract_stream(struct wim_lookup_table_entry *stream, int status, void *_ctx
                        ret = check_apply_error(dentry, ctx, ret);
                        if (ret)
                                return ret;
+                       /* Re-open the target directory if needed.  */
+                       ret = open_target_directory(ctx);
+                       if (ret)
+                               return ret;
                }
        }
 
@@ -2387,10 +2320,9 @@ do_apply_metadata_to_file(HANDLE h, const struct wim_inode *inode,
                if (!NT_SUCCESS(status) &&
                    (ctx->common.extract_flags & WIMLIB_EXTRACT_FLAG_STRICT_ACLS))
                {
-                       set_errno_from_nt_status(status);
-                       ERROR_WITH_ERRNO("Can't set security descriptor "
-                                        "on \"%ls\" (status=0x%08"PRIx32")",
-                                        current_path(ctx), (u32)status);
+                       winnt_error(status,
+                                   L"Can't set security descriptor on \"%ls\"",
+                                   current_path(ctx));
                        return WIMLIB_ERR_SET_SECURITY;
                }
        }
@@ -2400,10 +2332,13 @@ do_apply_metadata_to_file(HANDLE h, const struct wim_inode *inode,
        info.LastAccessTime.QuadPart = inode->i_last_access_time;
        info.LastWriteTime.QuadPart = inode->i_last_write_time;
        info.ChangeTime.QuadPart = 0;
-       if (ctx->common.extract_flags & WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES)
-               info.FileAttributes = 0;
-       else
+       if (ctx->common.extract_flags & WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES) {
+               info.FileAttributes = FILE_ATTRIBUTE_NORMAL;
+       } else {
                info.FileAttributes = inode->i_attributes & ~SPECIAL_ATTRIBUTES;
+               if (info.FileAttributes == 0)
+                       info.FileAttributes = FILE_ATTRIBUTE_NORMAL;
+       }
 
        status = (*func_NtSetInformationFile)(h, &ctx->iosb,
                                              &info, sizeof(info),
@@ -2415,10 +2350,8 @@ do_apply_metadata_to_file(HANDLE h, const struct wim_inode *inode,
            && !(status == STATUS_INVALID_PARAMETER &&
                 dentry_is_root(inode_first_extraction_dentry(inode))))
        {
-               set_errno_from_nt_status(status);
-               ERROR_WITH_ERRNO("Can't set basic metadata on \"%ls\" "
-                                "(status=0x%08"PRIx32")",
-                                current_path(ctx), (u32)status);
+               winnt_error(status, L"Can't set basic metadata on \"%ls\"",
+                           current_path(ctx));
                return WIMLIB_ERR_SET_ATTRIBUTES;
        }
 
@@ -2460,10 +2393,8 @@ apply_metadata_to_file(const struct wim_dentry *dentry,
                                continue;
                        }
                }
-               set_errno_from_nt_status(status);
-               ERROR_WITH_ERRNO("Can't open \"%ls\" to set metadata "
-                                "(status=0x%08"PRIx32")",
-                                current_path(ctx), (u32)status);
+               winnt_error(status, L"Can't open \"%ls\" to set metadata",
+                           current_path(ctx));
                return WIMLIB_ERR_OPEN;
        }
 
@@ -2620,8 +2551,7 @@ win32_extract(struct list_head *dentry_list, struct apply_ctx *_ctx)
 
        do_warnings(ctx);
 out:
-       if (ctx->h_target)
-               (*func_NtClose)(ctx->h_target);
+       close_target_directory(ctx);
        if (ctx->target_ntpath.Buffer)
                HeapFree(GetProcessHeap(), 0, ctx->target_ntpath.Buffer);
        FREE(ctx->pathbuf.Buffer);