* ntfs-capture.c
*
* Capture a WIM image from a NTFS volume. We capture everything we can,
- * including security data and alternate data streams. There should be no loss
- * of information.
+ * including security data and alternate data streams.
*/
/*
* 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 "config.h"
+
+#ifdef WITH_NTFS_3G
+#include <ntfs-3g/endians.h>
+#include <ntfs-3g/types.h>
+#endif
+
#include "wimlib_internal.h"
#include <ntfs-3g/attrib.h>
#include <ntfs-3g/misc.h>
#include <ntfs-3g/reparse.h>
-#include <ntfs-3g/security.h>
+#include <ntfs-3g/security.h> /* security.h before xattrs.h */
+#include <ntfs-3g/xattrs.h>
#include <ntfs-3g/volume.h>
#include <stdlib.h>
#include <unistd.h>
+#include <errno.h>
-extern int ntfs_inode_get_security(ntfs_inode *ni, u32 selection, char *buf,
+#if 0
+extern int ntfs_get_inode_security(ntfs_inode *ni, u32 selection, char *buf,
u32 buflen, u32 *psize);
-extern int ntfs_inode_get_attributes(ntfs_inode *ni);
+extern u32 ntfs_get_inode_attributes(ntfs_inode *ni);
+#endif
-struct sd_tree {
- u32 num_sds;
+/* Structure that allows searching the security descriptors by SHA1 message
+ * digest. */
+struct sd_set {
struct wim_security_data *sd;
struct sd_node *root;
};
+/* Binary tree node of security descriptors, indexed by the @hash field. */
struct sd_node {
int security_id;
u8 hash[SHA1_HASH_SIZE];
FREE(root);
}
}
+/* Frees a security descriptor index set. */
+static void destroy_sd_set(struct sd_set *sd_set)
+{
+ free_sd_tree(sd_set->root);
+}
+/* Inserts a a new node into the security descriptor index tree. */
static void insert_sd_node(struct sd_node *new, struct sd_node *root)
{
- int cmp = hashes_cmp(root->hash, new->hash);
+ int cmp = hashes_cmp(new->hash, root->hash);
if (cmp < 0) {
if (root->left)
insert_sd_node(new, root->left);
}
}
-static int lookup_sd(const u8 hash[SHA1_HASH_SIZE], struct sd_node *node)
+/* Returns the security ID of the security data having a SHA1 message digest of
+ * @hash in the security descriptor index tree rooted at @root.
+ *
+ * If not found, return -1. */
+static int lookup_sd(const u8 hash[SHA1_HASH_SIZE], struct sd_node *root)
{
int cmp;
- if (!node)
+ if (!root)
return -1;
- cmp = hashes_cmp(hash, node->hash);
+ cmp = hashes_cmp(hash, root->hash);
if (cmp < 0)
- return lookup_sd(hash, node->left);
+ return lookup_sd(hash, root->left);
else if (cmp > 0)
- return lookup_sd(hash, node->right);
+ return lookup_sd(hash, root->right);
else
- return node->security_id;
+ return root->security_id;
}
-static int tree_add_sd(struct sd_tree *tree, const u8 *descriptor,
- size_t size)
+/*
+ * Adds a security descriptor to the indexed security descriptor set as well as
+ * the corresponding `struct wim_security_data', and returns the new security
+ * ID; or, if there is an existing security descriptor that is the same, return
+ * the security ID for it. If a new security descriptor cannot be allocated,
+ * return -1.
+ */
+static int sd_set_add_sd(struct sd_set *sd_set, const char descriptor[],
+ size_t size)
{
u8 hash[SHA1_HASH_SIZE];
int security_id;
u8 **descriptors;
u64 *sizes;
u8 *descr_copy;
- struct wim_security_data *sd = tree->sd;
- sha1_buffer(descriptor, size, hash);
+ struct wim_security_data *sd;
+
+ sha1_buffer((const u8*)descriptor, size, hash);
- security_id = lookup_sd(hash, tree->root);
+ security_id = lookup_sd(hash, sd_set->root);
if (security_id >= 0)
return security_id;
- new = MALLOC(sizeof(struct sd_node));
+ new = MALLOC(sizeof(*new));
if (!new)
- return -1;
+ goto out;
descr_copy = MALLOC(size);
if (!descr_copy)
goto out_free_node;
+
+ sd = sd_set->sd;
+
memcpy(descr_copy, descriptor, size);
- new->security_id = tree->num_sds++;
+ new->security_id = sd->num_entries;
new->left = NULL;
new->right = NULL;
copy_hash(new->hash, hash);
+
descriptors = REALLOC(sd->descriptors,
(sd->num_entries + 1) * sizeof(sd->descriptors[0]));
if (!descriptors)
sd->descriptors[sd->num_entries] = descr_copy;
sd->sizes[sd->num_entries] = size;
sd->num_entries++;
- sd->total_length += size + 8;
+ DEBUG("There are now %d security descriptors", sd->num_entries);
+ sd->total_length += size + sizeof(sd->sizes[0]);
- if (tree->root)
- insert_sd_node(tree->root, new);
+ if (sd_set->root)
+ insert_sd_node(new, sd_set->root);
else
- tree->root = new;
+ sd_set->root = new;
return new->security_id;
out_free_descr:
FREE(descr_copy);
out_free_node:
FREE(new);
+out:
return -1;
}
-#if 0
-static int build_sd_tree(struct wim_security_data *sd, struct sd_tree *tree)
+static inline ntfschar *attr_record_name(ATTR_RECORD *ar)
{
- int ret;
- u32 orig_num_entries = sd->num_entries;
- u32 orig_total_length = sd->total_length;
+ return (ntfschar*)((u8*)ar + le16_to_cpu(ar->name_offset));
+}
- tree->num_sds = 0;
- tree->sd = sd;
- tree->root = NULL;
+/* Calculates the SHA1 message digest of a NTFS attribute.
+ *
+ * @ni: The NTFS inode containing the attribute.
+ * @ar: The ATTR_RECORD describing the attribute.
+ * @md: If successful, the returned SHA1 message digest.
+ * @reparse_tag_ret: Optional pointer into which the first 4 bytes of the
+ * attribute will be written (to get the reparse
+ * point ID)
+ *
+ * Return 0 on success or nonzero on error.
+ */
+static int ntfs_attr_sha1sum(ntfs_inode *ni, ATTR_RECORD *ar,
+ u8 md[SHA1_HASH_SIZE],
+ u32 *reparse_tag_ret)
+{
+ s64 pos = 0;
+ s64 bytes_remaining;
+ char buf[4096];
+ ntfs_attr *na;
+ SHA_CTX ctx;
- for (u32 i = 0; i < sd->num_entries; i++) {
- ret = tree_add_sd(tree, sd->descriptors[i], sd->sizes[i]);
- if (ret < 0)
- goto out_revert;
+ na = ntfs_attr_open(ni, ar->type, attr_record_name(ar),
+ ar->name_length);
+ if (!na) {
+ ERROR_WITH_ERRNO("Failed to open NTFS attribute");
+ return WIMLIB_ERR_NTFS_3G;
}
+
+ bytes_remaining = na->data_size;
+ sha1_init(&ctx);
+
+ DEBUG2("Calculating SHA1 message digest (%"PRIu64" bytes)",
+ bytes_remaining);
+
+ while (bytes_remaining) {
+ s64 to_read = min(bytes_remaining, sizeof(buf));
+ if (ntfs_attr_pread(na, pos, to_read, buf) != to_read) {
+ ERROR_WITH_ERRNO("Error reading NTFS attribute");
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ if (bytes_remaining == na->data_size && reparse_tag_ret)
+ *reparse_tag_ret = le32_to_cpu(*(u32*)buf);
+ sha1_update(&ctx, buf, to_read);
+ pos += to_read;
+ bytes_remaining -= to_read;
+ }
+ sha1_final(md, &ctx);
+ ntfs_attr_close(na);
return 0;
-out_revert:
- sd->num_entries = orig_num_entries;
- sd->total_length = orig_total_length;
- free_sd_tree(tree->root);
+}
+
+/* Load the streams from a WIM file or reparse point in the NTFS volume into the
+ * WIM lookup table */
+static int capture_ntfs_streams(struct dentry *dentry, ntfs_inode *ni,
+ char path[], size_t path_len,
+ struct lookup_table *lookup_table,
+ ntfs_volume **ntfs_vol_p,
+ ATTR_TYPES type)
+{
+
+ ntfs_attr_search_ctx *actx;
+ u8 attr_hash[SHA1_HASH_SIZE];
+ struct ntfs_location *ntfs_loc = NULL;
+ int ret = 0;
+ struct lookup_table_entry *lte;
+
+ DEBUG2("Capturing NTFS data streams from `%s'", path);
+
+ /* Get context to search the streams of the NTFS file. */
+ actx = ntfs_attr_get_search_ctx(ni, NULL);
+ if (!actx) {
+ ERROR_WITH_ERRNO("Cannot get NTFS attribute search "
+ "context");
+ return WIMLIB_ERR_NTFS_3G;
+ }
+
+ /* Capture each data stream or reparse data stream. */
+ while (!ntfs_attr_lookup(type, NULL, 0,
+ CASE_SENSITIVE, 0, NULL, 0, actx))
+ {
+ char *stream_name_utf8;
+ size_t stream_name_utf16_len;
+ u32 reparse_tag;
+ u64 data_size = ntfs_get_attribute_value_length(actx->attr);
+ u64 name_length = actx->attr->name_length;
+
+ if (data_size == 0) {
+ if (errno != 0) {
+ ERROR_WITH_ERRNO("Failed to get size of attribute of "
+ "`%s'", path);
+ ret = WIMLIB_ERR_NTFS_3G;
+ goto out_put_actx;
+ }
+ /* Empty stream. No lookup table entry is needed. */
+ lte = NULL;
+ } else {
+ if (type == AT_REPARSE_POINT && data_size < 8) {
+ ERROR("`%s': reparse point buffer too small",
+ path);
+ ret = WIMLIB_ERR_NTFS_3G;
+ goto out_put_actx;
+ }
+ /* Checksum the stream. */
+ ret = ntfs_attr_sha1sum(ni, actx->attr, attr_hash, &reparse_tag);
+ if (ret != 0)
+ goto out_put_actx;
+
+ /* Make a lookup table entry for the stream, or use an existing
+ * one if there's already an identical stream. */
+ lte = __lookup_resource(lookup_table, attr_hash);
+ ret = WIMLIB_ERR_NOMEM;
+ if (lte) {
+ lte->refcnt++;
+ } else {
+ ntfs_loc = CALLOC(1, sizeof(*ntfs_loc));
+ if (!ntfs_loc)
+ goto out_put_actx;
+ ntfs_loc->ntfs_vol_p = ntfs_vol_p;
+ ntfs_loc->path_utf8 = MALLOC(path_len + 1);
+ if (!ntfs_loc->path_utf8)
+ goto out_free_ntfs_loc;
+ memcpy(ntfs_loc->path_utf8, path, path_len + 1);
+ if (name_length) {
+ ntfs_loc->stream_name_utf16 = MALLOC(name_length * 2);
+ if (!ntfs_loc->stream_name_utf16)
+ goto out_free_ntfs_loc;
+ memcpy(ntfs_loc->stream_name_utf16,
+ attr_record_name(actx->attr),
+ actx->attr->name_length * 2);
+ ntfs_loc->stream_name_utf16_num_chars = name_length;
+ }
+
+ lte = new_lookup_table_entry();
+ if (!lte)
+ goto out_free_ntfs_loc;
+ lte->ntfs_loc = ntfs_loc;
+ lte->resource_location = RESOURCE_IN_NTFS_VOLUME;
+ if (type == AT_REPARSE_POINT) {
+ dentry->inode->reparse_tag = reparse_tag;
+ ntfs_loc->is_reparse_point = true;
+ lte->resource_entry.original_size = data_size - 8;
+ lte->resource_entry.size = data_size - 8;
+ } else {
+ ntfs_loc->is_reparse_point = false;
+ lte->resource_entry.original_size = data_size;
+ lte->resource_entry.size = data_size;
+ }
+ ntfs_loc = NULL;
+ DEBUG("Add resource for `%s' (size = %zu)",
+ dentry->file_name_utf8,
+ lte->resource_entry.original_size);
+ copy_hash(lte->hash, attr_hash);
+ lookup_table_insert(lookup_table, lte);
+ }
+ }
+ if (name_length == 0) {
+ /* Unnamed data stream. Put the reference to it in the
+ * dentry's inode. */
+ if (dentry->inode->lte) {
+ ERROR("Found two un-named data streams for "
+ "`%s'", path);
+ ret = WIMLIB_ERR_NTFS_3G;
+ goto out_free_lte;
+ }
+ dentry->inode->lte = lte;
+ } else {
+ /* Named data stream. Put the reference to it in the
+ * alternate data stream entries */
+ struct ads_entry *new_ads_entry;
+ size_t stream_name_utf8_len;
+ stream_name_utf8 = utf16_to_utf8((const char*)attr_record_name(actx->attr),
+ name_length * 2,
+ &stream_name_utf8_len);
+ if (!stream_name_utf8)
+ goto out_free_lte;
+ new_ads_entry = inode_add_ads(dentry->inode, stream_name_utf8);
+ FREE(stream_name_utf8);
+ if (!new_ads_entry)
+ goto out_free_lte;
+
+ wimlib_assert(new_ads_entry->stream_name_len == name_length * 2);
+
+ new_ads_entry->lte = lte;
+ }
+ }
+ ret = 0;
+ goto out_put_actx;
+out_free_lte:
+ free_lookup_table_entry(lte);
+out_free_ntfs_loc:
+ if (ntfs_loc) {
+ FREE(ntfs_loc->path_utf8);
+ FREE(ntfs_loc->stream_name_utf16);
+ FREE(ntfs_loc);
+ }
+out_put_actx:
+ ntfs_attr_put_search_ctx(actx);
+ if (ret == 0)
+ DEBUG2("Successfully captured NTFS streams from `%s'", path);
+ else
+ ERROR("Failed to capture NTFS streams from `%s", path);
return ret;
}
-#endif
-static int __build_dentry_tree_ntfs(struct dentry *dentry, ntfs_inode *ni,
- struct lookup_table *lookup_table,
- struct sd_tree *tree)
+struct readdir_ctx {
+ struct dentry *parent;
+ ntfs_inode *dir_ni;
+ char *path;
+ size_t path_len;
+ struct lookup_table *lookup_table;
+ struct sd_set *sd_set;
+ const struct capture_config *config;
+ ntfs_volume **ntfs_vol_p;
+ int flags;
+};
+
+static int
+build_dentry_tree_ntfs_recursive(struct dentry **root_p, ntfs_inode *dir_ni,
+ ntfs_inode *ni, char path[], size_t path_len,
+ int name_type,
+ struct lookup_table *lookup_table,
+ struct sd_set *sd_set,
+ const struct capture_config *config,
+ ntfs_volume **ntfs_vol_p,
+ int flags);
+
+static int wim_ntfs_capture_filldir(void *dirent, const ntfschar *name,
+ const int name_len, const int name_type,
+ const s64 pos, const MFT_REF mref,
+ const unsigned dt_type)
{
- u32 attributes = ntfs_inode_get_attributes(ni);
- int mrec_flags = ni->mrec->flags;
- u32 sd_size;
+ struct readdir_ctx *ctx;
+ size_t utf8_name_len;
+ char *utf8_name;
+ struct dentry *child = NULL;
int ret;
+ size_t path_len;
- dentry->creation_time = le64_to_cpu(ni->creation_time);
- dentry->last_write_time = le64_to_cpu(ni->last_data_change_time);
- dentry->last_access_time = le64_to_cpu(ni->last_access_time);
- dentry->security_id = le32_to_cpu(ni->security_id);
- dentry->attributes = le32_to_cpu(attributes);
+ if (name_type == FILE_NAME_DOS)
+ return 0;
- if (mrec_flags & MFT_RECORD_IS_DIRECTORY) {
- if (attributes & FILE_ATTR_REPARSE_POINT) {
- /* Junction point */
- } else {
- /* Normal directory */
+ ret = -1;
+
+ utf8_name = utf16_to_utf8((const char*)name, name_len * 2,
+ &utf8_name_len);
+ if (!utf8_name)
+ goto out;
+
+ if (utf8_name[0] == '.' &&
+ (utf8_name[1] == '\0' ||
+ (utf8_name[1] == '.' && utf8_name[2] == '\0'))) {
+ ret = 0;
+ goto out_free_utf8_name;
+ }
+
+ ctx = dirent;
+
+ ntfs_inode *ni = ntfs_inode_open(ctx->dir_ni->vol, mref);
+ if (!ni) {
+ ERROR_WITH_ERRNO("Failed to open NTFS inode");
+ ret = 1;
+ }
+ path_len = ctx->path_len;
+ if (path_len != 1)
+ ctx->path[path_len++] = '/';
+ memcpy(ctx->path + path_len, utf8_name, utf8_name_len + 1);
+ path_len += utf8_name_len;
+ ret = build_dentry_tree_ntfs_recursive(&child, ctx->dir_ni,
+ ni, ctx->path, path_len, name_type,
+ ctx->lookup_table, ctx->sd_set,
+ ctx->config, ctx->ntfs_vol_p,
+ ctx->flags);
+
+ if (child)
+ link_dentry(child, ctx->parent);
+
+ ntfs_inode_close(ni);
+out_free_utf8_name:
+ FREE(utf8_name);
+out:
+ return ret;
+}
+
+static int change_dentry_short_name(struct dentry *dentry,
+ const char short_name_utf8[],
+ int short_name_utf8_len)
+{
+ size_t short_name_utf16_len;
+ char *short_name_utf16;
+ short_name_utf16 = utf8_to_utf16(short_name_utf8, short_name_utf8_len,
+ &short_name_utf16_len);
+ if (!short_name_utf16) {
+ ERROR_WITH_ERRNO("Failed to convert short name to UTF-16");
+ return WIMLIB_ERR_NOMEM;
+ }
+ dentry->short_name = short_name_utf16;
+ dentry->short_name_len = short_name_utf16_len;
+ return 0;
+}
+
+/*#define HAVE_NTFS_INODE_FUNCTIONS*/
+
+/* Recursively build a WIM dentry tree corresponding to a NTFS volume.
+ * At the same time, update the WIM lookup table with lookup table entries for
+ * the NTFS streams, and build an array of security descriptors.
+ */
+static int build_dentry_tree_ntfs_recursive(struct dentry **root_p,
+ ntfs_inode *dir_ni,
+ ntfs_inode *ni,
+ char path[],
+ size_t path_len,
+ int name_type,
+ struct lookup_table *lookup_table,
+ struct sd_set *sd_set,
+ const struct capture_config *config,
+ ntfs_volume **ntfs_vol_p,
+ int flags)
+{
+ u32 attributes;
+ int mrec_flags;
+ u32 sd_size = 0;
+ int ret;
+ char dos_name_utf8[64];
+ struct dentry *root;
+
+ mrec_flags = ni->mrec->flags;
+#ifdef HAVE_NTFS_INODE_FUNCTIONS
+ attributes = ntfs_get_inode_attributes(ni);
+#else
+ struct SECURITY_CONTEXT ctx;
+ memset(&ctx, 0, sizeof(ctx));
+ ctx.vol = ni->vol;
+ ret = ntfs_xattr_system_getxattr(&ctx, XATTR_NTFS_ATTRIB,
+ ni, dir_ni, (char *)&attributes,
+ sizeof(u32));
+ if (ret != 4) {
+ ERROR_WITH_ERRNO("Failed to get NTFS attributes from `%s'",
+ path);
+ return WIMLIB_ERR_NTFS_3G;
+ }
+#endif
+
+ if (exclude_path(path, config, false)) {
+ if (flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE) {
+ const char *file_type;
+ if (attributes & MFT_RECORD_IS_DIRECTORY)
+ file_type = "directory";
+ else
+ file_type = "file";
+ printf("Excluding %s `%s' from capture\n",
+ file_type, path);
}
- } else {
- if (attributes & FILE_ATTR_REPARSE_POINT) {
- /* Symbolic link or other reparse point */
+ *root_p = NULL;
+ return 0;
+ }
+
+ if (flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE)
+ printf("Scanning `%s'\n", path);
+
+ root = new_dentry_with_inode(path_basename(path));
+ if (!root)
+ return WIMLIB_ERR_NOMEM;
+ *root_p = root;
+
+ if (dir_ni && (name_type == FILE_NAME_WIN32_AND_DOS
+ || name_type == FILE_NAME_WIN32))
+ {
+ ret = ntfs_get_ntfs_dos_name(ni, dir_ni, dos_name_utf8,
+ sizeof(dos_name_utf8));
+ if (ret > 0) {
+ DEBUG("Changing short name of `%s'", path);
+ ret = change_dentry_short_name(root, dos_name_utf8,
+ ret);
+ if (ret != 0)
+ return ret;
} else {
- /* Normal file */
+ #ifdef ENODATA
+ if (errno != ENODATA) {
+ ERROR_WITH_ERRNO("Error getting DOS name "
+ "of `%s'", path);
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ #endif
}
}
- ret = ntfs_inode_get_security(ni,
+
+ root->inode->creation_time = le64_to_cpu(ni->creation_time);
+ root->inode->last_write_time = le64_to_cpu(ni->last_data_change_time);
+ root->inode->last_access_time = le64_to_cpu(ni->last_access_time);
+ root->inode->attributes = le32_to_cpu(attributes);
+ root->inode->ino = ni->mft_no;
+ root->inode->resolved = true;
+
+ if (attributes & FILE_ATTR_REPARSE_POINT) {
+ /* Junction point, symbolic link, or other reparse point */
+ ret = capture_ntfs_streams(root, ni, path, path_len,
+ lookup_table, ntfs_vol_p,
+ AT_REPARSE_POINT);
+ } else if (mrec_flags & MFT_RECORD_IS_DIRECTORY) {
+
+ /* Normal directory */
+ s64 pos = 0;
+ struct readdir_ctx ctx = {
+ .parent = root,
+ .dir_ni = ni,
+ .path = path,
+ .path_len = path_len,
+ .lookup_table = lookup_table,
+ .sd_set = sd_set,
+ .config = config,
+ .ntfs_vol_p = ntfs_vol_p,
+ .flags = flags,
+ };
+ ret = ntfs_readdir(ni, &pos, &ctx, wim_ntfs_capture_filldir);
+ if (ret != 0) {
+ ERROR_WITH_ERRNO("ntfs_readdir()");
+ ret = WIMLIB_ERR_NTFS_3G;
+ }
+ } else {
+ /* Normal file */
+ ret = capture_ntfs_streams(root, ni, path, path_len,
+ lookup_table, ntfs_vol_p,
+ AT_DATA);
+ }
+ if (ret != 0)
+ return ret;
+
+#ifdef HAVE_NTFS_INODE_FUNCTIONS
+ ret = ntfs_get_inode_security(ni,
OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
DACL_SECURITY_INFORMATION |
SACL_SECURITY_INFORMATION,
NULL, 0, &sd_size);
- u8 sd[sd_size];
- ret = ntfs_inode_get_security(ni,
+ char sd[sd_size];
+ ret = ntfs_get_inode_security(ni,
OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
DACL_SECURITY_INFORMATION |
SACL_SECURITY_INFORMATION,
sd, sd_size, &sd_size);
- dentry->security_id = tree_add_sd(tree, sd, sd_size);
-
- return 0;
+ if (ret == 0) {
+ ERROR_WITH_ERRNO("Failed to get security information from "
+ "`%s'", path);
+ ret = WIMLIB_ERR_NTFS_3G;
+ } else {
+ if (ret > 0) {
+ /*print_security_descriptor(sd, sd_size);*/
+ root->security_id = sd_set_add_sd(sd_set, sd, ret);
+ if (root->security_id == -1) {
+ ERROR("Out of memory");
+ return WIMLIB_ERR_NOMEM;
+ }
+ DEBUG("Added security ID = %u for `%s'",
+ root->security_id, path);
+ } else {
+ root->security_id = -1;
+ DEBUG("No security ID for `%s'", path);
+ }
+ ret = 0;
+ }
+#else
+ char _sd[1];
+ char *sd = _sd;
+ errno = 0;
+ ret = ntfs_xattr_system_getxattr(&ctx, XATTR_NTFS_ACL,
+ ni, dir_ni, sd,
+ sizeof(sd));
+ if (ret > sizeof(sd)) {
+ sd = alloca(ret);
+ ret = ntfs_xattr_system_getxattr(&ctx, XATTR_NTFS_ACL,
+ ni, dir_ni, sd, ret);
+ }
+ if (ret > 0) {
+ root->inode->security_id = sd_set_add_sd(sd_set, sd, ret);
+ if (root->inode->security_id == -1) {
+ ERROR("Out of memory");
+ return WIMLIB_ERR_NOMEM;
+ }
+ DEBUG("Added security ID = %u for `%s'",
+ root->inode->security_id, path);
+ ret = 0;
+ } else if (ret < 0) {
+ ERROR_WITH_ERRNO("Failed to get security information from "
+ "`%s'", path);
+ ret = WIMLIB_ERR_NTFS_3G;
+ } else {
+ root->inode->security_id = -1;
+ DEBUG("No security ID for `%s'", path);
+ }
+#endif
+ return ret;
}
-static int build_dentry_tree_ntfs(struct dentry *root_dentry,
+static int build_dentry_tree_ntfs(struct dentry **root_p,
const char *device,
struct lookup_table *lookup_table,
- int flags)
+ struct wim_security_data *sd,
+ const struct capture_config *config,
+ int flags,
+ void *extra_arg)
{
ntfs_volume *vol;
ntfs_inode *root_ni;
int ret = 0;
- struct sd_tree tree;
- tree.sd = CALLOC(1, sizeof(struct wim_security_data));
- if (!tree.sd)
- return WIMLIB_ERR_NOMEM;
- tree.sd->total_length = 8;
- tree.root = NULL;
+ struct sd_set sd_set = {
+ .sd = sd,
+ .root = NULL,
+ };
+ ntfs_volume **ntfs_vol_p = extra_arg;
+
+ DEBUG("Mounting NTFS volume `%s' read-only", device);
vol = ntfs_mount(device, MS_RDONLY);
if (!vol) {
device);
return WIMLIB_ERR_NTFS_3G;
}
+ ntfs_open_secure(vol);
+
+ /* We don't want to capture the special NTFS files such as $Bitmap. Not
+ * to be confused with "hidden" or "system" files which are real files
+ * that we do need to capture. */
+ NVolClearShowSysFiles(vol);
+
+ DEBUG("Opening root NTFS dentry");
root_ni = ntfs_inode_open(vol, FILE_root);
if (!root_ni) {
ERROR_WITH_ERRNO("Failed to open root inode of NTFS volume "
ret = WIMLIB_ERR_NTFS_3G;
goto out;
}
- ret = __build_dentry_tree_ntfs(root_dentry, root_ni, lookup_table, &tree);
+
+ /* Currently we assume that all the UTF-8 paths fit into this length and
+ * there is no check for overflow. */
+ char *path = MALLOC(32768);
+ if (!path) {
+ ERROR("Could not allocate memory for NTFS pathname");
+ goto out_cleanup;
+ }
+
+ path[0] = '/';
+ path[1] = '\0';
+ ret = build_dentry_tree_ntfs_recursive(root_p, NULL, root_ni, path, 1,
+ FILE_NAME_POSIX, lookup_table,
+ &sd_set, config, ntfs_vol_p,
+ flags);
+out_cleanup:
+ FREE(path);
+ ntfs_inode_close(root_ni);
+ destroy_sd_set(&sd_set);
out:
- if (ntfs_umount(vol, FALSE) != 0) {
- ERROR_WITH_ERRNO("Failed to unmount NTFS volume `%s'", device);
- if (ret == 0)
- ret = WIMLIB_ERR_NTFS_3G;
+ if (ret) {
+ if (ntfs_umount(vol, FALSE) != 0) {
+ ERROR_WITH_ERRNO("Failed to unmount NTFS volume `%s'",
+ device);
+ if (ret == 0)
+ ret = WIMLIB_ERR_NTFS_3G;
+ }
+ } else {
+ /* We need to leave the NTFS volume mounted so that we can read
+ * the NTFS files again when we are actually writing the WIM */
+ *ntfs_vol_p = vol;
}
return ret;
}
+
+
WIMLIBAPI int wimlib_add_image_from_ntfs_volume(WIMStruct *w,
const char *device,
const char *name,
- const char *description,
- const char *flags_element,
+ const char *config_str,
+ size_t config_len,
int flags)
{
if (flags & (WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE)) {
ERROR("Cannot dereference files when capturing directly from NTFS");
return WIMLIB_ERR_INVALID_PARAM;
}
- return do_add_image(w, device, name, description, flags_element, flags,
- build_dentry_tree_ntfs);
+ return do_add_image(w, device, name, config_str, config_len, flags,
+ build_dentry_tree_ntfs, &w->ntfs_vol);
}
#else /* WITH_NTFS_3G */
WIMLIBAPI int wimlib_add_image_from_ntfs_volume(WIMStruct *w,
const char *device,
const char *name,
- const char *description,
- const char *flags_element,
+ const char *config_str,
+ size_t config_len,
int flags)
{
ERROR("wimlib was compiled without support for NTFS-3g, so");
git://wimlib.net / wimlib / blobdiff