]> wimlib.net Git - wimlib/blobdiff - src/wim.c
win32_capture_try_rpfix(): Warn on excluded reparse points
[wimlib] / src / wim.c
index 9a20cc5756969e2642cc0ba7e01fd6b91756541f..592cc440aba90c0e5a25b7c5b5d7148f3298edeb 100644 (file)
--- a/src/wim.c
+++ b/src/wim.c
 #include <stdlib.h>
 #include <unistd.h>
 
-#ifdef WITH_NTFS_3G
-#  include <time.h>
-#  include <ntfs-3g/volume.h>
-#endif
-
 #ifdef __WIN32__
 #  include "win32.h"
 #else
@@ -70,7 +65,7 @@ static WIMStruct *
 new_wim_struct()
 {
        WIMStruct *w = CALLOC(1, sizeof(WIMStruct));
-#ifdef WITH_FUSE
+#if defined(WITH_FUSE) || defined(ENABLE_MULTITHREADED_COMPRESSION)
        if (pthread_mutex_init(&w->fp_tab_mutex, NULL) != 0) {
                ERROR_WITH_ERRNO("Failed to initialize mutex");
                FREE(w);
@@ -199,15 +194,13 @@ select_wim_image(WIMStruct *w, int image)
        if (w->current_image != WIMLIB_NO_IMAGE) {
                imd = wim_get_current_image_metadata(w);
                if (!imd->modified) {
+                       wimlib_assert(list_empty(&imd->unhashed_streams));
                        DEBUG("Freeing image %u", w->current_image);
-                       destroy_image_metadata(imd, NULL);
-                       imd->root_dentry = NULL;
-                       imd->security_data = NULL;
-                       INIT_HLIST_HEAD(&imd->inode_list);
+                       destroy_image_metadata(imd, NULL, false);
                }
        }
        w->current_image = image;
-       imd = &w->image_metadata[image - 1];
+       imd = wim_get_current_image_metadata(w);
        if (imd->root_dentry) {
                ret = 0;
        } else {
@@ -301,6 +294,8 @@ wimlib_print_wim_information(const WIMStruct *w)
                wim_info_get_total_bytes(w->wim_info));
        tprintf(T("Integrity Info: %"TS"\n"),
                (w->hdr.integrity.offset != 0) ? T("yes") : T("no"));
+       tprintf(T("Relative path junction: %"TS"\n"),
+               (hdr->flags & WIM_HDR_FLAG_RP_FIX) ? T("yes") : T("no"));
        tputchar(T('\n'));
 }
 
@@ -375,17 +370,6 @@ wimlib_set_boot_idx(WIMStruct *w, int boot_idx)
        if (boot_idx < 0 || boot_idx > w->hdr.image_count)
                return WIMLIB_ERR_INVALID_IMAGE;
        w->hdr.boot_idx = boot_idx;
-
-       if (boot_idx == 0) {
-               memset(&w->hdr.boot_metadata_res_entry, 0,
-                      sizeof(struct resource_entry));
-       } else {
-               memcpy(&w->hdr.boot_metadata_res_entry,
-                      &w->image_metadata[
-                         boot_idx - 1].metadata_lte->resource_entry,
-                      sizeof(struct resource_entry));
-       }
-
        return 0;
 }
 
@@ -479,22 +463,16 @@ begin_read(WIMStruct *w, const tchar *in_wim_path, int open_flags,
        }
 
        if (w->hdr.image_count != 0 && w->hdr.part_number == 1) {
-               w->image_metadata = CALLOC(w->hdr.image_count,
-                                          sizeof(struct wim_image_metadata));
-
-               if (!w->image_metadata) {
-                       ERROR("Failed to allocate memory for %u image metadata structures",
-                             w->hdr.image_count);
+               w->image_metadata = new_image_metadata_array(w->hdr.image_count);
+               if (!w->image_metadata)
                        return WIMLIB_ERR_NOMEM;
-               }
        }
 
        ret = read_lookup_table(w);
        if (ret)
                return ret;
 
-       ret = read_xml_data(w->fp, &w->hdr.xml_res_entry,
-                           &w->xml_data, &w->wim_info);
+       ret = read_xml_data(w->fp, &w->hdr.xml_res_entry, &w->wim_info);
        if (ret)
                return ret;
 
@@ -539,12 +517,125 @@ wimlib_open_wim(const tchar *wim_file, int open_flags,
 
 void
 destroy_image_metadata(struct wim_image_metadata *imd,
-                      struct wim_lookup_table *table)
+                      struct wim_lookup_table *table,
+                      bool free_metadata_lte)
 {
        free_dentry_tree(imd->root_dentry, table);
+       imd->root_dentry = NULL;
        free_security_data(imd->security_data);
-       if (table)
+       imd->security_data = NULL;
+
+       if (free_metadata_lte) {
                free_lookup_table_entry(imd->metadata_lte);
+               imd->metadata_lte = NULL;
+       }
+       if (!table) {
+               struct wim_lookup_table_entry *lte, *tmp;
+               list_for_each_entry_safe(lte, tmp, &imd->unhashed_streams, unhashed_list)
+                       free_lookup_table_entry(lte);
+       }
+       INIT_LIST_HEAD(&imd->unhashed_streams);
+       INIT_LIST_HEAD(&imd->inode_list);
+#ifdef WITH_NTFS_3G
+       if (imd->ntfs_vol) {
+               do_ntfs_umount(imd->ntfs_vol);
+               imd->ntfs_vol = NULL;
+       }
+#endif
+}
+
+void
+put_image_metadata(struct wim_image_metadata *imd,
+                  struct wim_lookup_table *table)
+{
+       if (imd && --imd->refcnt == 0) {
+               destroy_image_metadata(imd, table, true);
+               FREE(imd);
+       }
+}
+
+/* Appends the specified image metadata structure to the array of image metadata
+ * for a WIM, and increments the image count. */
+int
+append_image_metadata(WIMStruct *w, struct wim_image_metadata *imd)
+{
+       struct wim_image_metadata **imd_array;
+
+       DEBUG("Reallocating image metadata array for image_count = %u",
+             w->hdr.image_count + 1);
+       imd_array = REALLOC(w->image_metadata,
+                           sizeof(w->image_metadata[0]) * (w->hdr.image_count + 1));
+
+       if (!imd_array)
+               return WIMLIB_ERR_NOMEM;
+       w->image_metadata = imd_array;
+       imd_array[w->hdr.image_count++] = imd;
+       return 0;
+}
+
+
+struct wim_image_metadata *
+new_image_metadata()
+{
+       struct wim_image_metadata *imd;
+
+       imd = CALLOC(1, sizeof(*imd));
+       if (imd) {
+               imd->refcnt = 1;
+               INIT_LIST_HEAD(&imd->inode_list);
+               INIT_LIST_HEAD(&imd->unhashed_streams);
+               DEBUG("Created new image metadata (refcnt=1)");
+       } else {
+               ERROR_WITH_ERRNO("Failed to allocate new image metadata structure");
+       }
+       return imd;
+}
+
+struct wim_image_metadata **
+new_image_metadata_array(unsigned num_images)
+{
+       struct wim_image_metadata **imd_array;
+
+       DEBUG("Creating new image metadata array for %u images",
+             num_images);
+
+       imd_array = CALLOC(num_images, sizeof(imd_array[0]));
+
+       if (!imd_array) {
+               ERROR("Failed to allocate memory for %u image metadata structures",
+                     num_images);
+               return NULL;
+       }
+       for (unsigned i = 0; i < num_images; i++) {
+               imd_array[i] = new_image_metadata();
+               if (!imd_array[i]) {
+                       for (unsigned j = 0; j < i; j++)
+                               put_image_metadata(imd_array[j], NULL);
+                       FREE(imd_array);
+                       return NULL;
+               }
+       }
+       return imd_array;
+}
+
+/* Checksum all streams that are unhashed (other than the metadata streams),
+ * merging them into the lookup table as needed.  This is a no-op unless the
+ * library has previously used to add or mount an image using the same
+ * WIMStruct. */
+int
+wim_checksum_unhashed_streams(WIMStruct *w)
+{
+       int ret;
+       for (int i = 0; i < w->hdr.image_count; i++) {
+               struct wim_lookup_table_entry *lte, *tmp;
+               struct wim_image_metadata *imd = w->image_metadata[i];
+               image_for_each_unhashed_stream_safe(lte, tmp, imd) {
+                       ret = hash_unhashed_stream(lte, w->lookup_table, NULL);
+                       if (ret)
+                               return ret;
+               }
+       }
+       return 0;
 }
 
 /* Frees the memory for the WIMStruct, including all internal memory; also
@@ -561,7 +652,7 @@ wimlib_free(WIMStruct *w)
        if (w->out_fp)
                fclose(w->out_fp);
 
-#ifdef WITH_FUSE
+#if defined(WITH_FUSE) || defined(ENABLE_MULTITHREADED_COMPRESSION)
        if (w->fp_tab) {
                for (size_t i = 0; i < w->num_allocated_fps; i++)
                        if (w->fp_tab[i])
@@ -574,21 +665,12 @@ wimlib_free(WIMStruct *w)
        free_lookup_table(w->lookup_table);
 
        FREE(w->filename);
-       FREE(w->xml_data);
        free_wim_info(w->wim_info);
        if (w->image_metadata) {
-               for (unsigned i = 0; i < w->hdr.image_count; i++) {
-                       destroy_image_metadata(&w->image_metadata[i], NULL);
-                       free_lookup_table_entry(w->image_metadata[i].metadata_lte);
-               }
+               for (unsigned i = 0; i < w->hdr.image_count; i++)
+                       put_image_metadata(w->image_metadata[i], NULL);
                FREE(w->image_metadata);
        }
-#ifdef WITH_NTFS_3G
-       if (w->ntfs_vol) {
-               DEBUG("Unmounting NTFS volume");
-               ntfs_umount(w->ntfs_vol, FALSE);
-       }
-#endif
        FREE(w);
        DEBUG("Freed WIMStruct");
 }
@@ -608,16 +690,17 @@ test_locale_ctype_utf8()
 #endif
 }
 
-/* Get global memory allocations out of the way, 
- * single-threaded programs like 'imagex'. */
 WIMLIBAPI int
-wimlib_global_init()
+wimlib_global_init(int init_flags)
 {
        libxml_global_init();
-#ifdef WITH_NTFS_3G
-       libntfs3g_global_init();
-#endif
-       wimlib_mbs_is_utf8 = test_locale_ctype_utf8();
+       if (!(init_flags & WIMLIB_INIT_FLAG_ASSUME_UTF8)) {
+               wimlib_mbs_is_utf8 = test_locale_ctype_utf8();
+       #ifdef WITH_NTFS_3G
+               if (!wimlib_mbs_is_utf8)
+                       libntfs3g_global_init();
+       #endif
+       }
 #ifdef __WIN32__
        win32_global_init();
 #endif