*/
/*
- * Copyright (C) 2012 Eric Biggers
+ * Copyright (C) 2012, 2013 Eric Biggers
*
* This file is part of wimlib, a library for working with WIM files.
*
#include <ntfs-3g/endians.h>
#include <ntfs-3g/types.h>
-#include "wimlib_internal.h"
-
-
+#include "buffer_io.h"
#include "dentry.h"
#include "lookup_table.h"
-#include "buffer_io.h"
+#include "security.h"
+#include "wimlib_internal.h"
+
#include <ntfs-3g/layout.h>
#include <ntfs-3g/acls.h>
#include <ntfs-3g/attrib.h>
#include <ntfs-3g/misc.h>
#include <ntfs-3g/reparse.h>
-#include <ntfs-3g/security.h> /* security.h before xattrs.h */
+#include <ntfs-3g/security.h> /* ntfs-3g/security.h before ntfs-3g/xattrs.h */
#include <ntfs-3g/xattrs.h>
#include <ntfs-3g/volume.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
-#include "rbtree.h"
-
-/* Structure that allows searching the security descriptors by SHA1 message
- * digest. */
-struct sd_set {
- struct wim_security_data *sd;
- struct rb_root rb_root;
-};
-
-/* Binary tree node of security descriptors, indexed by the @hash field. */
-struct sd_node {
- int security_id;
- u8 hash[SHA1_HASH_SIZE];
- struct rb_node rb_node;
-};
-
-static void free_sd_tree(struct rb_node *node)
-{
- if (node) {
- free_sd_tree(node->rb_left);
- free_sd_tree(node->rb_right);
- FREE(container_of(node, struct sd_node, rb_node));
- }
-}
-/* Frees a security descriptor index set. */
-static void destroy_sd_set(struct sd_set *sd_set)
-{
- free_sd_tree(sd_set->rb_root.rb_node);
-}
-
-/* Inserts a a new node into the security descriptor index tree. */
-static void insert_sd_node(struct sd_set *set, struct sd_node *new)
-{
- struct rb_root *root = &set->rb_root;
- struct rb_node **p = &(root->rb_node);
- struct rb_node *rb_parent = NULL;
-
- while (*p) {
- struct sd_node *this = container_of(*p, struct sd_node, rb_node);
- int cmp = hashes_cmp(new->hash, this->hash);
-
- rb_parent = *p;
- if (cmp < 0)
- p = &((*p)->rb_left);
- else if (cmp > 0)
- p = &((*p)->rb_right);
- else
- wimlib_assert(0); /* Duplicate SHA1 message digest */
- }
- rb_link_node(&new->rb_node, rb_parent, p);
- rb_insert_color(&new->rb_node, root);
-}
-
-/* Returns the index of the security descriptor having a SHA1 message digest of
- * @hash. If not found, return -1. */
-static int lookup_sd(struct sd_set *set, const u8 hash[SHA1_HASH_SIZE])
-{
- struct rb_node *node = set->rb_root.rb_node;
-
- while (node) {
- struct sd_node *sd_node = container_of(node, struct sd_node, rb_node);
- int cmp = hashes_cmp(hash, sd_node->hash);
- if (cmp < 0)
- node = node->rb_left;
- else if (cmp > 0)
- node = node->rb_right;
- else
- return sd_node->security_id;
- }
- return -1;
-}
-/*
- * 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;
- struct sd_node *new;
- u8 **descriptors;
- u64 *sizes;
- u8 *descr_copy;
- struct wim_security_data *sd;
-
- sha1_buffer((const u8*)descriptor, size, hash);
-
- security_id = lookup_sd(sd_set, hash);
- if (security_id >= 0) /* Identical descriptor already exists */
- return security_id;
-
- /* Need to add a new security descriptor */
- new = MALLOC(sizeof(*new));
- if (!new)
- 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 = sd->num_entries;
- copy_hash(new->hash, hash);
-
- descriptors = REALLOC(sd->descriptors,
- (sd->num_entries + 1) * sizeof(sd->descriptors[0]));
- if (!descriptors)
- goto out_free_descr;
- sd->descriptors = descriptors;
- sizes = REALLOC(sd->sizes,
- (sd->num_entries + 1) * sizeof(sd->sizes[0]));
- if (!sizes)
- goto out_free_descr;
- sd->sizes = sizes;
- sd->descriptors[sd->num_entries] = descr_copy;
- sd->sizes[sd->num_entries] = size;
- sd->num_entries++;
- DEBUG("There are now %d security descriptors", sd->num_entries);
- sd->total_length += size + sizeof(sd->sizes[0]);
- insert_sd_node(sd_set, new);
- return new->security_id;
-out_free_descr:
- FREE(descr_copy);
-out_free_node:
- FREE(new);
-out:
- return -1;
-}
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
-static inline ntfschar *attr_record_name(ATTR_RECORD *ar)
+static inline ntfschar *
+attr_record_name(ATTR_RECORD *ar)
{
return (ntfschar*)((u8*)ar + le16_to_cpu(ar->name_offset));
}
*
* Return 0 on success or nonzero on error.
*/
-static int ntfs_attr_sha1sum(ntfs_inode *ni, ATTR_RECORD *ar,
- u8 md[SHA1_HASH_SIZE],
- bool is_reparse_point,
- u32 *reparse_tag_ret)
+static int
+ntfs_attr_sha1sum(ntfs_inode *ni, ATTR_RECORD *ar,
+ u8 md[SHA1_HASH_SIZE],
+ bool is_reparse_point,
+ u32 *reparse_tag_ret)
{
s64 pos = 0;
s64 bytes_remaining;
if (ntfs_attr_pread(na, 0, 8, buf) != 8)
goto out_error;
*reparse_tag_ret = le32_to_cpu(*(u32*)buf);
+ DEBUG("ReparseTag = %#x", *reparse_tag_ret);
pos = 8;
bytes_remaining -= 8;
}
/* Load the streams from a file or reparse point in the NTFS volume into the WIM
* lookup table */
-static int capture_ntfs_streams(struct wim_dentry *dentry, ntfs_inode *ni,
- char path[], size_t path_len,
- struct wim_lookup_table *lookup_table,
- ntfs_volume **ntfs_vol_p,
- ATTR_TYPES type)
+static int
+capture_ntfs_streams(struct wim_dentry *dentry,
+ ntfs_inode *ni,
+ mbchar *path,
+ size_t path_len,
+ struct wim_lookup_table *lookup_table,
+ ntfs_volume **ntfs_vol_p,
+ ATTR_TYPES type)
{
ntfs_attr_search_ctx *actx;
u8 attr_hash[SHA1_HASH_SIZE];
while (!ntfs_attr_lookup(type, NULL, 0,
CASE_SENSITIVE, 0, NULL, 0, actx))
{
- char *stream_name_utf8;
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 "
if (ret != 0)
goto out_put_actx;
+ if (type == AT_REPARSE_POINT)
+ dentry->d_inode->i_reparse_tag = reparse_tag;
+
/* 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);
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)
+ ntfs_loc->path = MALLOC(path_len + 1);
+ if (!ntfs_loc->path)
goto out_free_ntfs_loc;
- memcpy(ntfs_loc->path_utf8, path, path_len + 1);
+ memcpy(ntfs_loc->path, path, path_len + 1);
if (name_length) {
- ntfs_loc->stream_name_utf16 = MALLOC(name_length * 2);
- if (!ntfs_loc->stream_name_utf16)
+ ntfs_loc->stream_name = MALLOC(name_length * 2);
+ if (!ntfs_loc->stream_name)
goto out_free_ntfs_loc;
- memcpy(ntfs_loc->stream_name_utf16,
+ memcpy(ntfs_loc->stream_name,
attr_record_name(actx->attr),
actx->attr->name_length * 2);
- ntfs_loc->stream_name_utf16_num_chars = name_length;
+ ntfs_loc->stream_name_nchars = name_length;
}
lte = new_lookup_table_entry();
lte->ntfs_loc = ntfs_loc;
lte->resource_location = RESOURCE_IN_NTFS_VOLUME;
if (type == AT_REPARSE_POINT) {
- dentry->d_inode->i_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;
lte->resource_entry.size = data_size;
}
ntfs_loc = NULL;
- DEBUG("Add resource for `%s' (size = %"PRIu64")",
- dentry->file_name_utf8,
- lte->resource_entry.original_size);
copy_hash(lte->hash, attr_hash);
lookup_table_insert(lookup_table, lte);
}
/* Unnamed data stream. Put the reference to it in the
* dentry's inode. */
if (dentry->d_inode->i_lte) {
- ERROR("Found two un-named data streams for "
- "`%s'", path);
- ret = WIMLIB_ERR_NTFS_3G;
- goto out_free_lte;
+ WARNING("Found two un-named data streams for "
+ "`%s'", path);
+ free_lookup_table_entry(lte);
+ } else {
+ dentry->d_inode->i_lte = lte;
}
- dentry->d_inode->i_lte = lte;
} else {
/* Named data stream. Put the reference to it in the
* alternate data stream entries */
struct wim_ads_entry *new_ads_entry;
- size_t stream_name_utf8_len;
- ret = utf16_to_utf8((const char*)attr_record_name(actx->attr),
- name_length * 2,
- &stream_name_utf8,
- &stream_name_utf8_len);
- if (ret != 0)
- goto out_free_lte;
- new_ads_entry = inode_add_ads(dentry->d_inode, stream_name_utf8);
- FREE(stream_name_utf8);
+ new_ads_entry = inode_add_ads_utf16le(dentry->d_inode,
+ attr_record_name(actx->attr),
+ name_length * 2);
if (!new_ads_entry)
goto out_free_lte;
-
- wimlib_assert(new_ads_entry->stream_name_len == name_length * 2);
-
+ wimlib_assert(new_ads_entry->stream_name_nbytes == name_length * 2);
new_ads_entry->lte = 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->path);
+ FREE(ntfs_loc->stream_name);
FREE(ntfs_loc);
}
out_put_actx:
struct dos_name_node {
struct rb_node rb_node;
char dos_name[24];
- int name_len_bytes;
+ int name_nbytes;
u64 ntfs_ino;
};
/* Inserts a new DOS name into the map */
-static int insert_dos_name(struct dos_name_map *map,
- const ntfschar *dos_name, int name_len,
- u64 ntfs_ino)
+static int
+insert_dos_name(struct dos_name_map *map, const ntfschar *dos_name,
+ size_t name_nbytes, u64 ntfs_ino)
{
struct dos_name_node *new_node;
struct rb_node **p;
struct rb_root *root;
struct rb_node *rb_parent;
- DEBUG("DOS name_len = %d", name_len);
+ DEBUG("DOS name_len = %zu", name_nbytes);
new_node = MALLOC(sizeof(struct dos_name_node));
if (!new_node)
return -1;
/* DOS names are supposed to be 12 characters max (that's 24 bytes,
* assuming 2-byte ntfs characters) */
- wimlib_assert(name_len * sizeof(ntfschar) <= sizeof(new_node->dos_name));
+ wimlib_assert(name_nbytes <= sizeof(new_node->dos_name));
/* Initialize the DOS name, DOS name length, and NTFS inode number of
* the red-black tree node */
- memcpy(new_node->dos_name, dos_name, name_len * sizeof(ntfschar));
- new_node->name_len_bytes = name_len * sizeof(ntfschar);
+ memcpy(new_node->dos_name, dos_name, name_nbytes);
+ new_node->name_nbytes = name_nbytes;
new_node->ntfs_ino = ntfs_ino;
/* Insert the red-black tree node */
return NULL;
}
-static int set_dentry_dos_name(struct wim_dentry *dentry, void *arg)
+static int
+set_dentry_dos_name(struct wim_dentry *dentry, void *arg)
{
const struct dos_name_map *map = arg;
const struct dos_name_node *node;
if (dentry->is_win32_name) {
node = lookup_dos_name(map, dentry->d_inode->i_ino);
if (node) {
- dentry->short_name = MALLOC(node->name_len_bytes + 2);
+ dentry->short_name = MALLOC(node->name_nbytes + 2);
if (!dentry->short_name)
return WIMLIB_ERR_NOMEM;
memcpy(dentry->short_name, node->dos_name,
- node->name_len_bytes);
- *(u16*)&dentry->short_name[node->name_len_bytes] = 0;
- dentry->short_name_len = node->name_len_bytes;
+ node->name_nbytes);
+ dentry->short_name[node->name_nbytes / 2] = 0;
+ dentry->short_name_nbytes = node->name_nbytes;
DEBUG("Assigned DOS name to ino %"PRIu64,
dentry->d_inode->i_ino);
} else {
- DEBUG("ino %"PRIu64" has Win32 name with no "
- "corresponding DOS name",
- dentry->d_inode->i_ino);
+ WARNING("NTFS inode %"PRIu64" has Win32 name with no "
+ "corresponding DOS name",
+ dentry->d_inode->i_ino);
}
}
return 0;
}
-static void free_dos_name_tree(struct rb_node *node) {
+static void
+free_dos_name_tree(struct rb_node *node) {
if (node) {
free_dos_name_tree(node->rb_left);
free_dos_name_tree(node->rb_right);
}
}
-static void destroy_dos_name_map(struct dos_name_map *map)
+static void
+destroy_dos_name_map(struct dos_name_map *map)
{
free_dos_name_tree(map->rb_root.rb_node);
}
struct readdir_ctx {
struct wim_dentry *parent;
ntfs_inode *dir_ni;
- char *path;
+ mbchar *path;
size_t path_len;
struct wim_lookup_table *lookup_table;
struct sd_set *sd_set;
};
static int
-build_dentry_tree_ntfs_recursive(struct wim_dentry **root_p, ntfs_inode *dir_ni,
- ntfs_inode *ni, char path[], size_t path_len,
+build_dentry_tree_ntfs_recursive(struct wim_dentry **root_p,
+ ntfs_inode *dir_ni,
+ ntfs_inode *ni,
+ mbchar *path,
+ size_t path_len,
int name_type,
struct wim_lookup_table *lookup_table,
struct sd_set *sd_set,
int add_image_flags,
wimlib_progress_func_t progress_func);
-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)
+static int
+wim_ntfs_capture_filldir(void *dirent, const ntfschar *name,
+ const int name_nchars, const int name_type,
+ const s64 pos, const MFT_REF mref,
+ const unsigned dt_type)
{
struct readdir_ctx *ctx;
- size_t utf8_name_len;
- char *utf8_name;
+ size_t mbs_name_nbytes;
+ mbchar *mbs_name;
struct wim_dentry *child;
int ret;
size_t path_len;
+ size_t name_nbytes = name_nchars * sizeof(ntfschar);
ctx = dirent;
if (name_type & FILE_NAME_DOS) {
- /* Special case: If this is the entry for a DOS name, store it
- * for later. */
+ /* If this is the entry for a DOS name, store it for later. */
ret = insert_dos_name(ctx->dos_name_map, name,
- name_len, mref & MFT_REF_MASK_CPU);
- if (ret != 0)
- return ret;
- if (name_type == FILE_NAME_DOS) /* DOS only, not Win32 + DOS */
- return 0;
+ name_nbytes, mref & MFT_REF_MASK_CPU);
+
+ /* Return now if an error occurred or if this is just a DOS name
+ * and not a Win32+DOS name. */
+ if (ret != 0 || name_type == FILE_NAME_DOS)
+ goto out;
}
- ret = utf16_to_utf8((const char*)name, name_len * 2,
- &utf8_name, &utf8_name_len);
- if (ret != 0)
- return -1;
+ ret = utf16le_to_mbs(name, name_nbytes,
+ &mbs_name, &mbs_name_nbytes);
+ if (ret)
+ goto out;
- if (utf8_name[0] == '.' &&
- (utf8_name[1] == '\0' ||
- (utf8_name[1] == '.' && utf8_name[2] == '\0'))) {
+ if (mbs_name[0] == '.' &&
+ (mbs_name[1] == '\0' ||
+ (mbs_name[1] == '.' && mbs_name[2] == '\0'))) {
/* . or .. entries
*
* note: name_type is POSIX for these, so DOS names will not
* have been inserted for them. */
ret = 0;
- goto out_free_utf8_name;
+ goto out_free_mbs_name;
}
/* Open the inode for this directory entry and recursively capture the
ntfs_inode *ni = ntfs_inode_open(ctx->dir_ni->vol, mref);
if (!ni) {
ERROR_WITH_ERRNO("Failed to open NTFS inode");
- goto out_free_utf8_name;
+ ret = -1;
+ goto out_free_mbs_name;
}
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;
+ memcpy(ctx->path + path_len, mbs_name, mbs_name_nbytes + 1);
+ path_len += mbs_name_nbytes;
child = NULL;
ret = build_dentry_tree_ntfs_recursive(&child, ctx->dir_ni,
ni, ctx->path, path_len, name_type,
if (child)
dentry_add_child(ctx->parent, child);
ntfs_inode_close(ni);
-out_free_utf8_name:
- FREE(utf8_name);
+out_free_mbs_name:
+ FREE(mbs_name);
+out:
return ret;
}
* 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 wim_dentry **root_p,
- ntfs_inode *dir_ni,
- ntfs_inode *ni,
- char path[],
- size_t path_len,
- int name_type,
- struct wim_lookup_table *lookup_table,
- struct sd_set *sd_set,
- const struct capture_config *config,
- ntfs_volume **ntfs_vol_p,
- int add_image_flags,
- wimlib_progress_func_t progress_func)
+static int
+build_dentry_tree_ntfs_recursive(struct wim_dentry **root_p,
+ ntfs_inode *dir_ni,
+ ntfs_inode *ni,
+ mbchar *path,
+ size_t path_len,
+ int name_type,
+ struct wim_lookup_table *lookup_table,
+ struct sd_set *sd_set,
+ const struct capture_config *config,
+ ntfs_volume **ntfs_vol_p,
+ int add_image_flags,
+ wimlib_progress_func_t progress_func)
{
u32 attributes;
int ret;
}
/* Create the new WIM dentry */
- root = new_dentry_with_timeless_inode(path_basename(path));
- if (!root) {
- if (errno == EILSEQ)
- return WIMLIB_ERR_INVALID_UTF8_STRING;
- else if (errno == ENOMEM)
- return WIMLIB_ERR_NOMEM;
- else
- return WIMLIB_ERR_ICONV_NOT_AVAILABLE;
- }
+ ret = new_dentry_with_timeless_inode(path_basename(path), &root);
+ if (ret)
+ return ret;
+
*root_p = root;
if (name_type & FILE_NAME_WIN32) /* Win32 or Win32+DOS name */
return ret;
}
-int build_dentry_tree_ntfs(struct wim_dentry **root_p,
- const char *device,
- struct wim_lookup_table *lookup_table,
- struct wim_security_data *sd,
- const struct capture_config *config,
- int add_image_flags,
- wimlib_progress_func_t progress_func,
- void *extra_arg)
+int
+build_dentry_tree_ntfs(struct wim_dentry **root_p,
+ const mbchar *device,
+ struct wim_lookup_table *lookup_table,
+ struct wim_security_data *sd,
+ const struct capture_config *config,
+ int add_image_flags,
+ wimlib_progress_func_t progress_func,
+ void *extra_arg)
{
ntfs_volume *vol;
ntfs_inode *root_ni;
goto out;
}
- /* Currently we assume that all the UTF-8 paths fit into this length and
- * there is no check for overflow. */
- char *path = MALLOC(32768);
+ /* Currently we assume that all the paths fit into this length and there
+ * is no check for overflow. */
+ mbchar *path = MALLOC(32768);
if (!path) {
ERROR("Could not allocate memory for NTFS pathname");
ret = WIMLIB_ERR_NOMEM;
git://wimlib.net / wimlib / blobdiff