/**
* ntfs_index_entry_mark_dirty - mark an index entry dirty
* @ictx: ntfs index context describing the index entry
*
* Mark the index entry described by the index entry context @ictx dirty.
*
* If the index entry is in the index root attribute, simply mark the inode
* containing the index root attribute dirty. This ensures the mftrecord, and
* hence the index root attribute, will be written out to disk later.
*
* If the index entry is in an index block belonging to the index allocation
* attribute, set ib_dirty to TRUE, thus index block will be updated during
* ntfs_index_ctx_put.
*/
void ntfs_index_entry_mark_dirty(ntfs_index_context *ictx)
{
if (ictx->is_in_root)
ntfs_inode_mark_dirty(ictx->actx->ntfs_ino);
else
ictx->ib_dirty = TRUE;
}
static int ntfs_ih_takeout(ntfs_index_context *icx, INDEX_HEADER *ih,
INDEX_ENTRY *ie, INDEX_BLOCK *ib)
{
INDEX_ENTRY *ie_roam;
int ret = STATUS_ERROR;
ntfs_log_trace("Entering\n");
ie_roam = ntfs_ie_dup_novcn(ie);
if (!ie_roam)
return STATUS_ERROR;
ntfs_ie_delete(ih, ie);
if (ntfs_icx_parent_vcn(icx) == VCN_INDEX_ROOT_PARENT)
ntfs_inode_mark_dirty(icx->actx->ntfs_ino);
else
if (ntfs_ib_write(icx, ib))
goto out;
ntfs_index_ctx_reinit(icx);
ret = ntfs_ie_add(icx, ie_roam);
out:
free(ie_roam);
return ret;
}
int ntfs_index_remove(ntfs_inode *dir_ni, ntfs_inode *ni,
const void *key, const int keylen)
{
int ret = STATUS_ERROR;
ntfs_index_context *icx;
icx = ntfs_index_ctx_get(dir_ni, NTFS_INDEX_I30, 4);
if (!icx)
return -1;
while (1) {
if (ntfs_index_lookup(key, keylen, icx))
goto err_out;
if ((((FILE_NAME_ATTR *)icx->data)->file_attributes &
FILE_ATTR_REPARSE_POINT)
&& !ntfs_possible_symlink(ni)) {
errno = EOPNOTSUPP;
goto err_out;
}
ret = ntfs_index_rm(icx);
if (ret == STATUS_ERROR)
goto err_out;
else if (ret == STATUS_OK)
break;
ntfs_inode_mark_dirty(icx->actx->ntfs_ino);
ntfs_index_ctx_reinit(icx);
}
ntfs_inode_mark_dirty(icx->actx->ntfs_ino);
out:
ntfs_index_ctx_put(icx);
return ret;
err_out:
ret = STATUS_ERROR;
ntfs_log_perror("Delete failed");
goto out;
}
/**
* ntfs_inode_sync_standard_information - update standard information attribute
* @ni: ntfs inode to update standard information
*
* Return 0 on success or -1 on error with errno set to the error code.
*/
static int ntfs_inode_sync_standard_information(ntfs_inode *ni)
{
ntfs_attr_search_ctx *ctx;
STANDARD_INFORMATION *std_info;
u32 lth;
le32 lthle;
ntfs_log_trace("Entering for inode %lld\n", (long long)ni->mft_no);
ctx = ntfs_attr_get_search_ctx(ni, NULL);
if (!ctx)
return -1;
if (ntfs_attr_lookup(AT_STANDARD_INFORMATION, AT_UNNAMED,
0, CASE_SENSITIVE, 0, NULL, 0, ctx)) {
ntfs_log_perror("Failed to sync standard info (inode %lld)",
(long long)ni->mft_no);
ntfs_attr_put_search_ctx(ctx);
return -1;
}
std_info = (STANDARD_INFORMATION *)((u8 *)ctx->attr +
le16_to_cpu(ctx->attr->value_offset));
std_info->file_attributes = ni->flags;
if (test_nino_flag(ni, TimesDirty)) {
std_info->creation_time = utc2ntfs(ni->creation_time);
std_info->last_data_change_time = utc2ntfs(ni->last_data_change_time);
std_info->last_mft_change_time = utc2ntfs(ni->last_mft_change_time);
std_info->last_access_time = utc2ntfs(ni->last_access_time);
}
/* JPA update v3.x extensions, ensuring consistency */
lthle = ctx->attr->length;
lth = le32_to_cpu(lthle);
if (test_nino_flag(ni, v3_Extensions)
&& (lth <= sizeof(STANDARD_INFORMATION)))
ntfs_log_error("bad sync of standard information\n");
if (lth > sizeof(STANDARD_INFORMATION)) {
std_info->owner_id = ni->owner_id;
std_info->security_id = ni->security_id;
std_info->quota_charged = ni->quota_charged;
std_info->usn = ni->usn;
}
ntfs_inode_mark_dirty(ctx->ntfs_ino);
ntfs_attr_put_search_ctx(ctx);
return 0;
}
/* JPA static */
int ntfs_ie_add(ntfs_index_context *icx, INDEX_ENTRY *ie)
{
INDEX_HEADER *ih;
int allocated_size, new_size;
int ret = STATUS_ERROR;
#ifdef DEBUG
/* removed by JPA to make function usable for security indexes
char *fn;
fn = ntfs_ie_filename_get(ie);
ntfs_log_trace("file: '%s'\n", fn);
ntfs_attr_name_free(&fn);
*/
#endif
while (1) {
if (!ntfs_index_lookup(&ie->key, le16_to_cpu(ie->key_length), icx)) {
errno = EEXIST;
ntfs_log_perror("Index already have such entry");
goto err_out;
}
if (errno != ENOENT) {
ntfs_log_perror("Failed to find place for new entry");
goto err_out;
}
if (icx->is_in_root)
ih = &icx->ir->index;
else
ih = &icx->ib->index;
allocated_size = le32_to_cpu(ih->allocated_size);
new_size = le32_to_cpu(ih->index_length) + le16_to_cpu(ie->length);
if (new_size <= allocated_size)
break;
ntfs_log_trace("index block sizes: allocated: %d needed: %d\n",
allocated_size, new_size);
if (icx->is_in_root) {
if (ntfs_ir_make_space(icx, new_size) == STATUS_ERROR)
goto err_out;
} else {
if (ntfs_ib_split(icx, icx->ib) == STATUS_ERROR)
goto err_out;
}
ntfs_inode_mark_dirty(icx->actx->ntfs_ino);
ntfs_index_ctx_reinit(icx);
}
ntfs_ie_insert(ih, ie, icx->entry);
ntfs_index_entry_mark_dirty(icx);
ret = STATUS_OK;
err_out:
ntfs_log_trace("%s\n", ret ? "Failed" : "Done");
return ret;
}
int ntfs_inode_set_times(ntfs_inode *ni, const char *value, size_t size,
int flags)
{
ntfs_attr_search_ctx *ctx;
STANDARD_INFORMATION *std_info;
FILE_NAME_ATTR *fn;
const u64 *times;
ntfs_time now;
int cnt;
int ret;
ret = -1;
if ((size >= 8) && !(flags & XATTR_CREATE)) {
times = (const u64*)value;
now = ntfs_current_time();
/* update the standard information attribute */
ctx = ntfs_attr_get_search_ctx(ni, NULL);
if (ctx) {
if (ntfs_attr_lookup(AT_STANDARD_INFORMATION,
AT_UNNAMED, 0, CASE_SENSITIVE,
0, NULL, 0, ctx)) {
ntfs_log_perror("Failed to get standard info (inode %lld)",
(long long)ni->mft_no);
} else {
std_info = (STANDARD_INFORMATION *)((u8 *)ctx->attr +
le16_to_cpu(ctx->attr->value_offset));
/*
* Mark times set to avoid overwriting
* them when the inode is closed.
* The inode structure must also be updated
* (with loss of precision) because of cacheing.
* TODO : use NTFS precision in inode, and
* return sub-second times in getattr()
*/
set_nino_flag(ni, TimesSet);
std_info->creation_time = cpu_to_le64(times[0]);
ni->creation_time
= std_info->creation_time;
if (size >= 16) {
std_info->last_data_change_time = cpu_to_le64(times[1]);
ni->last_data_change_time
= std_info->last_data_change_time;
}
if (size >= 24) {
std_info->last_access_time = cpu_to_le64(times[2]);
ni->last_access_time
= std_info->last_access_time;
}
std_info->last_mft_change_time = now;
ni->last_mft_change_time = now;
ntfs_inode_mark_dirty(ctx->ntfs_ino);
NInoFileNameSetDirty(ni);
/* update the file names attributes */
ntfs_attr_reinit_search_ctx(ctx);
cnt = 0;
while (!ntfs_attr_lookup(AT_FILE_NAME,
AT_UNNAMED, 0, CASE_SENSITIVE,
0, NULL, 0, ctx)) {
fn = (FILE_NAME_ATTR*)((u8 *)ctx->attr +
le16_to_cpu(ctx->attr->value_offset));
fn->creation_time
= cpu_to_le64(times[0]);
if (size >= 16)
fn->last_data_change_time
= cpu_to_le64(times[1]);
if (size >= 24)
fn->last_access_time
= cpu_to_le64(times[2]);
fn->last_mft_change_time = now;
cnt++;
}
if (cnt)
ret = 0;
else {
ntfs_log_perror("Failed to get file names (inode %lld)",
(long long)ni->mft_no);
}
}
ntfs_attr_put_search_ctx(ctx);
}
} else
if (size < 8)
errno = ERANGE;
else
errno = EEXIST;
return (ret);
}