]> wimlib.net Git - wimlib/blobdiff - src/modify.c
Fix up calculation of image XML statistics
[wimlib] / src / modify.c
index 947316aa9fb5fe4fb566eebcb564e41710004e20..dc55d5fa8534ffc5ff0fcf0e7580e0511666bbd3 100644 (file)
  * This file is part of wimlib, a library for working with WIM files.
  *
  * wimlib 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
- * Software Foundation; either version 2.1 of the License, or (at your option)
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your option)
  * any later version.
  *
  * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more
  * details.
  *
- * You should have received a copy of the GNU Lesser General Public License
+ * You should have received a copy of the GNU General Public License
  * along with wimlib; if not, see http://www.gnu.org/licenses/.
  */
 
 #include <dirent.h>
 #include <string.h>
 #include <errno.h>
+#include <fnmatch.h>
+#include <ctype.h>
 #include <unistd.h>
 
 /** Private flag: Used to mark that we currently adding the root directory of
- * the WIM. */
+ * the WIM image. */
 #define WIMLIB_ADD_IMAGE_FLAG_ROOT 0x80000000
 
-void destroy_image_metadata(struct image_metadata *imd,struct lookup_table *lt)
+void destroy_image_metadata(struct image_metadata *imd, struct lookup_table *lt)
 {
-       if (lt)
-               free_dentry_tree(imd->root_dentry, lt, true);
-       else
-               free_dentry_tree(imd->root_dentry, NULL, false);
+       free_dentry_tree(imd->root_dentry, lt);
        free_security_data(imd->security_data);
-       free_link_group_table(imd->lgt);
 
        /* Get rid of the lookup table entry for this image's metadata resource
         * */
@@ -75,20 +73,36 @@ void destroy_image_metadata(struct image_metadata *imd,struct lookup_table *lt)
  *             to the WIM may still occur later when trying to actually read 
  *             the regular files in the tree into the WIM as file resources.
  */
-static int build_dentry_tree(struct dentry *root, const char *root_disk_path,
-                            struct lookup_table* lookup_table,
-                            int add_flags)
+static int build_dentry_tree(struct dentry **root_ret, const char *root_disk_path,
+                            struct lookup_table *lookup_table,
+                            struct wim_security_data *sd,
+                            const struct capture_config *config,
+                            int add_flags,
+                            void *extra_arg)
 {
-       DEBUG("%s", root_disk_path);
        struct stat root_stbuf;
-       int ret;
+       int ret = 0;
        int (*stat_fn)(const char *restrict, struct stat *restrict);
+       struct dentry *root;
+       const char *filename;
+
+       if (exclude_path(root_disk_path, config, true)) {
+               if (add_flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE)
+                       printf("Excluding file `%s' from capture\n",
+                              root_disk_path);
+               *root_ret = NULL;
+               return 0;
+       }
+
 
        if (add_flags & WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE)
                stat_fn = stat;
        else
                stat_fn = lstat;
 
+       if (add_flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE)
+               printf("Scanning `%s'\n", root_disk_path);
+
 
        ret = (*stat_fn)(root_disk_path, &root_stbuf);
        if (ret != 0) {
@@ -101,8 +115,25 @@ static int build_dentry_tree(struct dentry *root, const char *root_disk_path,
                ERROR("`%s' is not a directory", root_disk_path);
                return WIMLIB_ERR_NOTDIR;
        }
-       stbuf_to_dentry(&root_stbuf, root);
+       if (!S_ISREG(root_stbuf.st_mode) && !S_ISDIR(root_stbuf.st_mode)
+           && !S_ISLNK(root_stbuf.st_mode)) {
+               ERROR("`%s' is not a regular file, directory, or symbolic link.",
+                     root_disk_path);
+               return WIMLIB_ERR_SPECIAL_FILE;
+       }
+
+       if (add_flags & WIMLIB_ADD_IMAGE_FLAG_ROOT)
+               filename = "";
+       else
+               filename = path_basename(root_disk_path);
+
+       root = new_dentry_with_inode(filename);
+       if (!root)
+               return WIMLIB_ERR_NOMEM;
+
+       stbuf_to_inode(&root_stbuf, root->d_inode);
        add_flags &= ~WIMLIB_ADD_IMAGE_FLAG_ROOT;
+       root->d_inode->resolved = true;
 
        if (dentry_is_directory(root)) {
                /* Open the directory on disk */
@@ -130,82 +161,53 @@ static int build_dentry_tree(struct dentry *root, const char *root_disk_path,
                              || (p->d_name[1] == '.' && p->d_name[2] == '\0')))
                                        continue;
                        strcpy(name + len + 1, p->d_name);
-                       child = new_dentry(p->d_name);
-                       if (!child)
-                               return WIMLIB_ERR_NOMEM;
-                       ret = build_dentry_tree(child, name, lookup_table,
-                                               add_flags);
-                       link_dentry(child, root);
+                       ret = build_dentry_tree(&child, name, lookup_table,
+                                               sd, config,
+                                               add_flags, extra_arg);
                        if (ret != 0)
                                break;
+                       if (child)
+                               link_dentry(child, root);
                }
                closedir(dir);
        } else if (dentry_is_symlink(root)) {
                /* Archiving a symbolic link */
-               size_t symlink_buf_len;
                char deref_name_buf[4096];
-               ssize_t ret = readlink(root_disk_path, deref_name_buf,
-                                      sizeof(deref_name_buf) - 1);
-               if (ret == -1) {
+               ssize_t deref_name_len;
+               
+               deref_name_len = readlink(root_disk_path, deref_name_buf,
+                                         sizeof(deref_name_buf) - 1);
+               if (deref_name_len == -1) {
                        ERROR_WITH_ERRNO("Failed to read target of "
                                         "symbolic link `%s'", root_disk_path);
-                       return WIMLIB_ERR_STAT;
+                       return WIMLIB_ERR_READLINK;
                }
-               deref_name_buf[ret] = '\0';
+               deref_name_buf[deref_name_len] = '\0';
                DEBUG("Read symlink `%s'", deref_name_buf);
-               void *symlink_buf = make_symlink_reparse_data_buf(deref_name_buf,
-                                                                 &symlink_buf_len);
-               if (!symlink_buf)
-                       return WIMLIB_ERR_NOMEM;
-               DEBUG("Made symlink reparse data buf (len = %zu, name len = %zu)",
-                               symlink_buf_len, ret);
-               
-               u8 symlink_buf_hash[WIM_HASH_SIZE];
-               sha1_buffer(symlink_buf, symlink_buf_len, symlink_buf_hash);
-
-               ret = dentry_set_symlink_buf(root, symlink_buf_hash);
-
-               if (ret != 0) {
-                       FREE(symlink_buf);
-                       return ret;
-               }
-               DEBUG("Created symlink buf");
-
-               struct lookup_table_entry *lte;
-               struct lookup_table_entry *existing_lte;
-
-               existing_lte = __lookup_resource(lookup_table, symlink_buf_hash);
-               if (existing_lte) {
-                       existing_lte->refcnt++;
-               } else {
-                       DEBUG("Creating new lookup table entry");
-                       lte = new_lookup_table_entry();
-                       if (!lte) {
-                               FREE(symlink_buf);
-                               return WIMLIB_ERR_NOMEM;
-                       }
-                       lte->symlink_buf = symlink_buf;
-                       lte->resource_entry.original_size = symlink_buf_len;
-                       lte->resource_entry.size = symlink_buf_len;
-                       lte->is_symlink = true;
-                       memcpy(lte->hash, symlink_buf_hash, WIM_HASH_SIZE);
-                       lookup_table_insert(lookup_table, lte);
-               }
+               ret = inode_set_symlink(root->d_inode, deref_name_buf,
+                                       lookup_table, NULL);
        } else {
                /* Regular file */
                struct lookup_table_entry *lte;
+               u8 hash[SHA1_HASH_SIZE];
+
+               /* Empty files do not have to have a lookup table entry. */
+               if (root_stbuf.st_size == 0)
+                       goto out;
 
                /* For each regular file, we must check to see if the file is in
                 * the lookup table already; if it is, we increment its refcnt;
                 * otherwise, we create a new lookup table entry and insert it.
                 * */
-               ret = sha1sum(root_disk_path, root->hash);
+               ret = sha1sum(root_disk_path, hash);
                if (ret != 0)
                        return ret;
 
-               lte = __lookup_resource(lookup_table, root->hash);
+               lte = __lookup_resource(lookup_table, hash);
                if (lte) {
                        lte->refcnt++;
+                       DEBUG("Add lte reference %u for `%s'", lte->refcnt,
+                             root_disk_path);
                } else {
                        char *file_on_disk = STRDUP(root_disk_path);
                        if (!file_on_disk) {
@@ -218,12 +220,16 @@ static int build_dentry_tree(struct dentry *root, const char *root_disk_path,
                                return WIMLIB_ERR_NOMEM;
                        }
                        lte->file_on_disk = file_on_disk;
+                       lte->resource_location = RESOURCE_IN_FILE_ON_DISK;
                        lte->resource_entry.original_size = root_stbuf.st_size;
                        lte->resource_entry.size = root_stbuf.st_size;
-                       memcpy(lte->hash, root->hash, WIM_HASH_SIZE);
+                       copy_hash(lte->hash, hash);
                        lookup_table_insert(lookup_table, lte);
                }
+               root->d_inode->lte = lte;
        }
+out:
+       *root_ret = root;
        return ret;
 }
 
@@ -240,40 +246,36 @@ struct wim_pair {
  * entry is created that references the location of the file resource in the
  * source WIM file through the other_wim_fp field of the lookup table entry.
  */
-static int add_lookup_table_entry_to_dest_wim(struct dentry *dentry, void *arg)
+static int add_lte_to_dest_wim(struct dentry *dentry, void *arg)
 {
        WIMStruct *src_wim, *dest_wim;
-       struct lookup_table_entry *src_table_entry;
-       struct lookup_table_entry *dest_table_entry;
+       struct inode *inode;
 
        src_wim = ((struct wim_pair*)arg)->src_wim;
        dest_wim = ((struct wim_pair*)arg)->dest_wim;
-
-       if (dentry_is_directory(dentry))
-               return 0;
-
-       /* XXX ADS */
-       src_table_entry = __lookup_resource(src_wim->lookup_table, dentry->hash);
-       if (!src_table_entry)
-               return 0;
-
-       /* XXX ADS */
-       dest_table_entry = __lookup_resource(dest_wim->lookup_table, dentry->hash);
-       if (dest_table_entry) {
-               dest_table_entry->refcnt++;
-       } else {
-               dest_table_entry = new_lookup_table_entry();
-               if (!dest_table_entry)
-                       return WIMLIB_ERR_NOMEM;
-               dest_table_entry->other_wim_fp = src_wim->fp;
-               dest_table_entry->other_wim_ctype = 
-                               wimlib_get_compression_type(src_wim);
-               dest_table_entry->refcnt = 1;
-               memcpy(&dest_table_entry->resource_entry, 
-                      &src_table_entry->resource_entry, 
-                      sizeof(struct resource_entry));
-               memcpy(dest_table_entry->hash, dentry->hash, WIM_HASH_SIZE);
-               lookup_table_insert(dest_wim->lookup_table, dest_table_entry);
+       inode = dentry->d_inode;
+
+       wimlib_assert(!inode->resolved);
+
+       for (unsigned i = 0; i <= inode->num_ads; i++) {
+               struct lookup_table_entry *src_lte, *dest_lte;
+               src_lte = inode_stream_lte_unresolved(inode, i,
+                                                     src_wim->lookup_table);
+               if (!src_lte)
+                       continue;
+               dest_lte = inode_stream_lte_unresolved(inode, i,
+                                                      dest_wim->lookup_table);
+               if (dest_lte) {
+                       dest_lte->refcnt++;
+               } else {
+                       dest_lte = MALLOC(sizeof(struct lookup_table_entry));
+                       if (!dest_lte)
+                               return WIMLIB_ERR_NOMEM;
+                       memcpy(dest_lte, src_lte, sizeof(struct lookup_table_entry));
+                       dest_lte->part_number = 1;
+                       dest_lte->refcnt = 1;
+                       lookup_table_insert(dest_wim->lookup_table, dest_lte);
+               }
        }
        return 0;
 }
@@ -287,13 +289,14 @@ static int add_lookup_table_entry_to_dest_wim(struct dentry *dentry, void *arg)
  *
  * @w:           The WIMStruct for the WIM file.
  * @root_dentry:  The root of the directory tree for the image.
+ * @sd:                  The security data for the image.
  */
-static int add_new_dentry_tree(WIMStruct *w, struct dentry *root_dentry)
+static int add_new_dentry_tree(WIMStruct *w, struct dentry *root_dentry,
+                              struct wim_security_data *sd)
 {
        struct lookup_table_entry *metadata_lte;
        struct image_metadata *imd;
        struct image_metadata *new_imd;
-       struct wim_security_data *sd;
        struct link_group_table *lgt;
 
        DEBUG("Reallocating image metadata array for image_count = %u",
@@ -311,18 +314,9 @@ static int add_new_dentry_tree(WIMStruct *w, struct dentry *root_dentry)
        metadata_lte = new_lookup_table_entry();
        if (!metadata_lte)
                goto out_free_imd;
-       sd = CALLOC(1, sizeof(struct wim_security_data));
-       if (!sd)
-               goto out_free_metadata_lte;
-       sd->refcnt = 1;
-       sd->total_length = 8;
-
-       lgt = new_link_group_table(9001);
-       if (!lgt)
-               goto out_free_security_data;
 
        metadata_lte->resource_entry.flags = WIM_RESHDR_FLAG_METADATA;
-       randomize_byte_array(metadata_lte->hash, WIM_HASH_SIZE);
+       random_hash(metadata_lte->hash);
        lookup_table_insert(w->lookup_table, metadata_lte);
 
        new_imd = &imd[w->hdr.image_count];
@@ -330,7 +324,6 @@ static int add_new_dentry_tree(WIMStruct *w, struct dentry *root_dentry)
        new_imd->root_dentry    = root_dentry;
        new_imd->metadata_lte   = metadata_lte;
        new_imd->security_data  = sd;
-       new_imd->lgt            = lgt;
        new_imd->modified       = true;
 
        FREE(w->image_metadata);
@@ -339,8 +332,6 @@ static int add_new_dentry_tree(WIMStruct *w, struct dentry *root_dentry)
 
        /* Change the current image to the new one. */
        return wimlib_select_image(w, w->hdr.image_count);
-out_free_security_data:
-       FREE(sd);
 out_free_metadata_lte:
        FREE(metadata_lte);
 out_free_imd:
@@ -357,12 +348,25 @@ WIMLIBAPI int wimlib_export_image(WIMStruct *src_wim,
                                  WIMStruct *dest_wim, 
                                  const char *dest_name, 
                                  const char *dest_description, 
-                                 int flags)
+                                 int flags,
+                                 WIMStruct **additional_swms,
+                                 unsigned num_additional_swms)
 {
        int i;
        int ret;
        struct dentry *root;
        struct wim_pair wims;
+       struct wim_security_data *sd;
+       struct lookup_table *joined_tab, *src_wim_tab_save;
+
+       if (!src_wim || !dest_wim)
+               return WIMLIB_ERR_INVALID_PARAM;
+
+       if (dest_wim->hdr.total_parts != 1) {
+               ERROR("Exporting an image to a split WIM is "
+                     "unsupported");
+               return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+       }
 
        if (src_image == WIM_ALL_IMAGES) {
                if (src_wim->hdr.image_count > 1) {
@@ -397,7 +401,9 @@ WIMLIBAPI int wimlib_export_image(WIMStruct *src_wim,
                                ret = wimlib_export_image(src_wim, i, dest_wim, 
                                                          NULL,
                                                          dest_description,
-                                                         export_flags);
+                                                         export_flags,
+                                                         additional_swms,
+                                                         num_additional_swms);
                                if (ret != 0)
                                        return ret;
                        }
@@ -407,13 +413,6 @@ WIMLIBAPI int wimlib_export_image(WIMStruct *src_wim,
                }
        }
 
-       ret = wimlib_select_image(src_wim, src_image);
-       if (ret != 0) {
-               ERROR("Could not select image %d from the WIM `%s' "
-                     "to export it", src_image, src_wim->filename);
-               return ret;
-       }
-
        if (!dest_name) {
                dest_name = wimlib_get_image_name(src_wim, src_image);
                DEBUG("Using name `%s' for source image %d",
@@ -428,29 +427,44 @@ WIMLIBAPI int wimlib_export_image(WIMStruct *src_wim,
                return WIMLIB_ERR_IMAGE_NAME_COLLISION;
        }
 
+       ret = verify_swm_set(src_wim, additional_swms, num_additional_swms);
+       if (ret != 0)
+               return ret;
+
+       if (num_additional_swms) {
+               ret = new_joined_lookup_table(src_wim, additional_swms,
+                                             num_additional_swms,
+                                             &joined_tab);
+               if (ret != 0)
+                       return ret;
+               src_wim_tab_save = src_wim->lookup_table;
+               src_wim->lookup_table = joined_tab;
+       }
+
+       ret = wimlib_select_image(src_wim, src_image);
+       if (ret != 0) {
+               ERROR("Could not select image %d from the WIM `%s' "
+                     "to export it", src_image, src_wim->filename);
+               goto out;
+       }
 
        /* Cleaning up here on failure would be hard.  For example, we could
-        * fail to allocate memory in add_lookup_table_entry_to_dest_wim(),
+        * fail to allocate memory in add_lte_to_dest_wim(),
         * leaving the lookup table entries in the destination WIM in an
         * inconsistent state.  Until these issues can be resolved,
-        * wimlib_export_image() is documented as leaving dest_wim is an
+        * wimlib_export_image() is documented as leaving dest_wim in an
         * indeterminate state.  */
        root = wim_root_dentry(src_wim);
+       sd = wim_security_data(src_wim);
        for_dentry_in_tree(root, increment_dentry_refcnt, NULL);
        wims.src_wim = src_wim;
        wims.dest_wim = dest_wim;
-       ret = for_dentry_in_tree(root, add_lookup_table_entry_to_dest_wim, &wims);
+       ret = for_dentry_in_tree(root, add_lte_to_dest_wim, &wims);
        if (ret != 0)
-               return ret;
-       ret = add_new_dentry_tree(dest_wim, root);
+               goto out;
+       ret = add_new_dentry_tree(dest_wim, root, sd);
        if (ret != 0)
-               return ret;
-       /* Bring over old security data */
-       struct wim_security_data *sd = wim_security_data(src_wim);
-       struct image_metadata *new_imd = wim_get_current_image_metadata(dest_wim);
-       wimlib_assert(sd);
-       free_security_data(new_imd->security_data);
-       new_imd->security_data = sd;
+               goto out;
        sd->refcnt++;
 
        if (flags & WIMLIB_EXPORT_FLAG_BOOT) {
@@ -458,8 +472,14 @@ WIMLIBAPI int wimlib_export_image(WIMStruct *src_wim,
                dest_wim->hdr.boot_idx = dest_wim->hdr.image_count;
        }
 
-       return xml_export_image(src_wim->wim_info, src_image, &dest_wim->wim_info,
-                               dest_name, dest_description);
+       ret = xml_export_image(src_wim->wim_info, src_image, &dest_wim->wim_info,
+                              dest_name, dest_description);
+out:
+       if (num_additional_swms) {
+               free_lookup_table(src_wim->lookup_table);
+               src_wim->lookup_table = src_wim_tab_save;
+       }
+       return ret;
 }
 
 /* 
@@ -471,6 +491,11 @@ WIMLIBAPI int wimlib_delete_image(WIMStruct *w, int image)
        int i;
        int ret;
 
+       if (w->hdr.total_parts != 1) {
+               ERROR("Deleting an image from a split WIM is not supported.");
+               return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+       }
+
        if (image == WIM_ALL_IMAGES) {
                num_images = w->hdr.image_count;
                for (i = 1; i <= num_images; i++) {
@@ -520,76 +545,353 @@ WIMLIBAPI int wimlib_delete_image(WIMStruct *w, int image)
        return 0;
 }
 
+enum pattern_type {
+       NONE = 0,
+       EXCLUSION_LIST,
+       EXCLUSION_EXCEPTION,
+       COMPRESSION_EXCLUSION_LIST,
+       ALIGNMENT_LIST,
+};
+
+/* Default capture configuration file when none is specified. */
+static const char *default_config =
+"[ExclusionList]\n"
+"\\$ntfs.log\n"
+"\\hiberfil.sys\n"
+"\\pagefile.sys\n"
+"\\System Volume Information\n"
+"\\RECYCLER\n"
+"\\Windows\\CSC\n"
+"\n"
+"[CompressionExclusionList]\n"
+"*.mp3\n"
+"*.zip\n"
+"*.cab\n"
+"\\WINDOWS\\inf\\*.pnf\n";
+
+static void destroy_pattern_list(struct pattern_list *list)
+{
+       FREE(list->pats);
+}
+
+static void destroy_capture_config(struct capture_config *config)
+{
+       destroy_pattern_list(&config->exclusion_list);
+       destroy_pattern_list(&config->exclusion_exception);
+       destroy_pattern_list(&config->compression_exclusion_list);
+       destroy_pattern_list(&config->alignment_list);
+       FREE(config->config_str);
+       FREE(config->prefix);
+       memset(config, 0, sizeof(*config));
+}
+
+static int pattern_list_add_pattern(struct pattern_list *list,
+                                   const char *pattern)
+{
+       const char **pats;
+       if (list->num_pats >= list->num_allocated_pats) {
+               pats = REALLOC(list->pats,
+                              sizeof(list->pats[0]) * (list->num_allocated_pats + 8));
+               if (!pats)
+                       return WIMLIB_ERR_NOMEM;
+               list->num_allocated_pats += 8;
+               list->pats = pats;
+       }
+       list->pats[list->num_pats++] = pattern;
+       return 0;
+}
+
+/* Parses the contents of the image capture configuration file and fills in a
+ * `struct capture_config'. */
+static int init_capture_config(const char *_config_str, size_t config_len,
+                              const char *_prefix, struct capture_config *config)
+{
+       char *config_str;
+       char *prefix;
+       char *p;
+       char *eol;
+       char *next_p;
+       size_t bytes_remaining;
+       enum pattern_type type = NONE;
+       int ret;
+       unsigned long line_no = 0;
+
+       DEBUG("config_len = %zu", config_len);
+       bytes_remaining = config_len;
+       memset(config, 0, sizeof(*config));
+       config_str = MALLOC(config_len);
+       if (!config_str) {
+               ERROR("Could not duplicate capture config string");
+               return WIMLIB_ERR_NOMEM;
+       }
+       prefix = STRDUP(_prefix);
+       if (!prefix) {
+               FREE(config_str);
+               return WIMLIB_ERR_NOMEM;
+       }
+       
+       memcpy(config_str, _config_str, config_len);
+       next_p = config_str;
+       config->config_str = config_str;
+       config->prefix = prefix;
+       config->prefix_len = strlen(prefix);
+       while (bytes_remaining) {
+               line_no++;
+               p = next_p;
+               eol = memchr(p, '\n', bytes_remaining);
+               if (!eol) {
+                       ERROR("Expected end-of-line in capture config file on "
+                             "line %lu", line_no);
+                       ret = WIMLIB_ERR_INVALID_CAPTURE_CONFIG;
+                       goto out_destroy;
+               }
+               
+               next_p = eol + 1;
+               bytes_remaining -= (eol - p) + 1;
+               if (eol == p)
+                       continue;
+
+               if (*(eol - 1) == '\r')
+                       eol--;
+               *eol = '\0';
+
+               /* Translate backslash to forward slash */
+               for (char *pp = p; pp != eol; pp++)
+                       if (*pp == '\\')
+                               *pp = '/';
+
+               /* Remove drive letter */
+               if (eol - p > 2 && isalpha(*p) && *(p + 1) == ':')
+                       p += 2;
+
+               ret = 0;
+               if (strcmp(p, "[ExclusionList]") == 0)
+                       type = EXCLUSION_LIST;
+               else if (strcmp(p, "[ExclusionException]") == 0)
+                       type = EXCLUSION_EXCEPTION;
+               else if (strcmp(p, "[CompressionExclusionList]") == 0)
+                       type = COMPRESSION_EXCLUSION_LIST;
+               else if (strcmp(p, "[AlignmentList]") == 0)
+                       type = ALIGNMENT_LIST;
+               else if (p[0] == '[' && strrchr(p, ']')) {
+                       ERROR("Unknown capture configuration section `%s'", p);
+                       ret = WIMLIB_ERR_INVALID_CAPTURE_CONFIG;
+                       goto out_destroy;
+               } else switch (type) {
+               case EXCLUSION_LIST:
+                       DEBUG("Adding pattern \"%s\" to exclusion list", p);
+                       ret = pattern_list_add_pattern(&config->exclusion_list, p);
+                       break;
+               case EXCLUSION_EXCEPTION:
+                       DEBUG("Adding pattern \"%s\" to exclusion exception list", p);
+                       ret = pattern_list_add_pattern(&config->exclusion_exception, p);
+                       break;
+               case COMPRESSION_EXCLUSION_LIST:
+                       DEBUG("Adding pattern \"%s\" to compression exclusion list", p);
+                       ret = pattern_list_add_pattern(&config->compression_exclusion_list, p);
+                       break;
+               case ALIGNMENT_LIST:
+                       DEBUG("Adding pattern \"%s\" to alignment list", p);
+                       ret = pattern_list_add_pattern(&config->alignment_list, p);
+                       break;
+               default:
+                       ERROR("Line %lu of capture configuration is not "
+                             "in a block (such as [ExclusionList])",
+                             line_no);
+                       ret = WIMLIB_ERR_INVALID_CAPTURE_CONFIG;
+                       goto out_destroy;
+               }
+               if (ret != 0)
+                       goto out_destroy;
+       }
+       return 0;
+out_destroy:
+       destroy_capture_config(config);
+       return ret;
+}
+
+static bool match_pattern(const char *path, const char *path_basename,
+                         const struct pattern_list *list)
+{
+       for (size_t i = 0; i < list->num_pats; i++) {
+               const char *pat = list->pats[i];
+               const char *string;
+               if (pat[0] == '/')
+                       /* Absolute path from root of capture */
+                       string = path;
+               else {
+                       if (strchr(pat, '/'))
+                               /* Relative path from root of capture */
+                               string = path + 1;
+                       else
+                               /* A file name pattern */
+                               string = path_basename;
+               }
+               if (fnmatch(pat, string, FNM_PATHNAME
+                       #ifdef FNM_CASEFOLD
+                                       | FNM_CASEFOLD
+                       #endif
+                       ) == 0)
+               {
+                       DEBUG("`%s' matches the pattern \"%s\"",
+                             string, pat);
+                       return true;
+               }
+       }
+       return false;
+}
+
+static void print_pattern_list(const struct pattern_list *list)
+{
+       for (size_t i = 0; i < list->num_pats; i++)
+               printf("    %s\n", list->pats[i]);
+}
+
+static void print_capture_config(const struct capture_config *config)
+{
+       if (config->exclusion_list.num_pats) {
+               puts("Files or folders excluded from image capture:");
+               print_pattern_list(&config->exclusion_list);
+               putchar('\n');
+       }
+}
+
+/* Return true if the image capture configuration file indicates we should
+ * exclude the filename @path from capture.
+ *
+ * If @exclude_prefix is %true, the part of the path up and including the name
+ * of the directory being captured is not included in the path for matching
+ * purposes.  This allows, for example, a pattern like /hiberfil.sys to match a
+ * file /mnt/windows7/hiberfil.sys if we are capturing the /mnt/windows7
+ * directory.
+ */
+bool exclude_path(const char *path, const struct capture_config *config,
+                 bool exclude_prefix)
+{
+       const char *basename = path_basename(path);
+       if (exclude_prefix) {
+               wimlib_assert(strlen(path) >= config->prefix_len);
+               if (memcmp(config->prefix, path, config->prefix_len) == 0
+                    && path[config->prefix_len] == '/')
+                       path += config->prefix_len;
+       }
+       return match_pattern(path, basename, &config->exclusion_list) && 
+               !match_pattern(path, basename, &config->exclusion_exception);
+
+}
+
+
+
 /*
- * Adds an image to a WIM file from a directory tree on disk.
+ * Adds an image to the WIM, delegating the capture of the dentry tree and
+ * security data to the function @capture_tree passed as a parameter.
+ * Currently, @capture_tree may be build_dentry_tree() for capturing a "regular"
+ * directory tree on disk, or build_dentry_tree_ntfs() for capturing a WIM image
+ * directory from a NTFS volume using libntfs-3g.
+ *
+ * The @capture_tree function is also expected to create lookup table entries
+ * for all the file streams it captures and insert them into @lookup_table,
+ * being careful to look for identical entries that already exist and simply
+ * increment the reference count for them rather than duplicating the entry.
  */
-WIMLIBAPI int wimlib_add_image(WIMStruct *w, const char *dir, 
-                              const char *name, const char *description, 
-                              const char *flags_element, int flags)
+int do_add_image(WIMStruct *w, const char *dir, const char *name,
+                const char *config_str, size_t config_len,
+                int flags,
+                int (*capture_tree)(struct dentry **, const char *,
+                                    struct lookup_table *, 
+                                    struct wim_security_data *,
+                                    const struct capture_config *,
+                                    int, void *),
+                void *extra_arg)
 {
-       struct dentry *root_dentry;
-       struct image_metadata *imd;
+       struct dentry *root_dentry = NULL;
+       struct wim_security_data *sd;
+       struct capture_config config;
+       struct inode_table inode_tab;
+       struct hlist_head inode_list;
        int ret;
 
-       DEBUG("Adding dentry tree from dir `%s'.", dir);
+       DEBUG("Adding dentry tree from directory or NTFS volume `%s'.", dir);
 
        if (!name || !*name) {
                ERROR("Must specify a non-empty string for the image name");
                return WIMLIB_ERR_INVALID_PARAM;
        }
        if (!dir) {
-               ERROR("Must specify the name of a directory");
+               ERROR("Must specify the name of a directory or NTFS volume");
                return WIMLIB_ERR_INVALID_PARAM;
        }
 
+       if (w->hdr.total_parts != 1) {
+               ERROR("Cannot add an image to a split WIM");
+               return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+       }
+
        if (wimlib_image_name_in_use(w, name)) {
                ERROR("There is already an image named \"%s\" in `%s'",
                      name, w->filename);
                return WIMLIB_ERR_IMAGE_NAME_COLLISION;
        }
 
-       DEBUG("Creating root dentry.");
-
-       root_dentry = new_dentry("");
-       if (!root_dentry)
-               return WIMLIB_ERR_NOMEM;
-       ret = calculate_dentry_full_path(root_dentry, NULL);
-
+       DEBUG("Initializing capture configuration");
+       if (!config_str) {
+               DEBUG("Using default capture configuration");
+               config_str = default_config;
+               config_len = strlen(default_config);
+       }
+       ret = init_capture_config(config_str, config_len, dir, &config);
        if (ret != 0)
-               goto out_free_dentry_tree;
+               return ret;
+       print_capture_config(&config);
 
-       root_dentry->attributes |= FILE_ATTRIBUTE_DIRECTORY;
+       DEBUG("Allocating security data");
+
+       sd = CALLOC(1, sizeof(struct wim_security_data));
+       if (!sd)
+               goto out_destroy_config;
+       sd->total_length = 8;
+       sd->refcnt = 1;
 
        DEBUG("Building dentry tree.");
-       ret = build_dentry_tree(root_dentry, dir, w->lookup_table,
-                               flags | WIMLIB_ADD_IMAGE_FLAG_ROOT);
+       ret = (*capture_tree)(&root_dentry, dir, w->lookup_table, sd,
+                             &config, flags | WIMLIB_ADD_IMAGE_FLAG_ROOT,
+                             extra_arg);
+       destroy_capture_config(&config);
 
        if (ret != 0) {
                ERROR("Failed to build dentry tree for `%s'", dir);
                goto out_free_dentry_tree;
        }
 
-       DEBUG("Recalculating full paths of dentries.");
+       DEBUG("Calculating full paths of dentries.");
        ret = for_dentry_in_tree(root_dentry, calculate_dentry_full_path, NULL);
        if (ret != 0)
                goto out_free_dentry_tree;
 
-       ret = add_new_dentry_tree(w, root_dentry);
+       ret = add_new_dentry_tree(w, root_dentry, sd);
        if (ret != 0)
                goto out_free_dentry_tree;
 
-       DEBUG("Inserting dentries into hard link group table");
-       ret = for_dentry_in_tree(root_dentry, link_group_table_insert, 
-                                w->image_metadata[w->hdr.image_count - 1].lgt);
+       DEBUG("Inserting dentries into inode table");
+       ret = init_inode_table(&inode_tab, 9001);
+       if (ret != 0)
+               goto out_destroy_imd;
+
+       for_dentry_in_tree(root_dentry, inode_table_insert, &inode_tab);
+
+       DEBUG("Cleaning up the hard link groups");
+       ret = fix_inodes(&inode_tab, &inode_list);
+       destroy_inode_table(&inode_tab);
        if (ret != 0)
                goto out_destroy_imd;
-       DEBUG("Assigning hard link groups");
-       assign_link_groups(w->image_metadata[w->hdr.image_count - 1].lgt);
+
+       DEBUG("Assigning hard link group IDs");
+       assign_inode_numbers(&inode_list);
 
        if (flags & WIMLIB_ADD_IMAGE_FLAG_BOOT)
                wimlib_set_boot_idx(w, w->hdr.image_count);
 
-       ret = xml_add_image(w, root_dentry, name, description, flags_element);
+       ret = xml_add_image(w, name);
        if (ret != 0)
                goto out_destroy_imd;
 
@@ -600,6 +902,20 @@ out_destroy_imd:
        w->hdr.image_count--;
        return ret;
 out_free_dentry_tree:
-       free_dentry_tree(root_dentry, w->lookup_table, true);
+       free_dentry_tree(root_dentry, w->lookup_table);
+       free_security_data(sd);
+out_destroy_config:
+       destroy_capture_config(&config);
        return ret;
 }
+
+/*
+ * Adds an image to a WIM file from a directory tree on disk.
+ */
+WIMLIBAPI int wimlib_add_image(WIMStruct *w, const char *dir, 
+                              const char *name, const char *config_str,
+                              size_t config_len, int flags)
+{
+       return do_add_image(w, dir, name, config_str, config_len, flags,
+                           build_dentry_tree, NULL);
+}