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Diffstat (limited to 'source3/smbd/close.c')
-rw-r--r--source3/smbd/close.c260
1 files changed, 258 insertions, 2 deletions
diff --git a/source3/smbd/close.c b/source3/smbd/close.c
index afba07f1f5..05c3c709a1 100644
--- a/source3/smbd/close.c
+++ b/source3/smbd/close.c
@@ -656,6 +656,263 @@ static NTSTATUS close_normal_file(struct smb_request *req, files_struct *fsp,
file_free(req, fsp);
return status;
}
+/****************************************************************************
+ Static function used by reply_rmdir to delete an entire directory
+ tree recursively. Return True on ok, False on fail.
+****************************************************************************/
+
+static bool recursive_rmdir(TALLOC_CTX *ctx,
+ connection_struct *conn,
+ struct smb_filename *smb_dname)
+{
+ const char *dname = NULL;
+ char *talloced = NULL;
+ bool ret = True;
+ long offset = 0;
+ SMB_STRUCT_STAT st;
+ struct smb_Dir *dir_hnd;
+
+ SMB_ASSERT(!is_ntfs_stream_smb_fname(smb_dname));
+
+ dir_hnd = OpenDir(talloc_tos(), conn, smb_dname->base_name, NULL, 0);
+ if(dir_hnd == NULL)
+ return False;
+
+ while((dname = ReadDirName(dir_hnd, &offset, &st, &talloced))) {
+ struct smb_filename *smb_dname_full = NULL;
+ char *fullname = NULL;
+ bool do_break = true;
+ NTSTATUS status;
+
+ if (ISDOT(dname) || ISDOTDOT(dname)) {
+ TALLOC_FREE(talloced);
+ continue;
+ }
+
+ if (!is_visible_file(conn, smb_dname->base_name, dname, &st,
+ false)) {
+ TALLOC_FREE(talloced);
+ continue;
+ }
+
+ /* Construct the full name. */
+ fullname = talloc_asprintf(ctx,
+ "%s/%s",
+ smb_dname->base_name,
+ dname);
+ if (!fullname) {
+ errno = ENOMEM;
+ goto err_break;
+ }
+
+ status = create_synthetic_smb_fname(talloc_tos(), fullname,
+ NULL, NULL,
+ &smb_dname_full);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto err_break;
+ }
+
+ if(SMB_VFS_LSTAT(conn, smb_dname_full) != 0) {
+ goto err_break;
+ }
+
+ if(smb_dname_full->st.st_ex_mode & S_IFDIR) {
+ if(!recursive_rmdir(ctx, conn, smb_dname_full)) {
+ goto err_break;
+ }
+ if(SMB_VFS_RMDIR(conn,
+ smb_dname_full->base_name) != 0) {
+ goto err_break;
+ }
+ } else if(SMB_VFS_UNLINK(conn, smb_dname_full) != 0) {
+ goto err_break;
+ }
+
+ /* Successful iteration. */
+ do_break = false;
+
+ err_break:
+ TALLOC_FREE(smb_dname_full);
+ TALLOC_FREE(fullname);
+ TALLOC_FREE(talloced);
+ if (do_break) {
+ ret = false;
+ break;
+ }
+ }
+ TALLOC_FREE(dir_hnd);
+ return ret;
+}
+
+/****************************************************************************
+ The internals of the rmdir code - called elsewhere.
+****************************************************************************/
+
+static NTSTATUS rmdir_internals(TALLOC_CTX *ctx, files_struct *fsp)
+{
+ connection_struct *conn = fsp->conn;
+ struct smb_filename *smb_dname = fsp->fsp_name;
+ int ret;
+
+ SMB_ASSERT(!is_ntfs_stream_smb_fname(smb_dname));
+
+ /* Might be a symlink. */
+ if(SMB_VFS_LSTAT(conn, smb_dname) != 0) {
+ return map_nt_error_from_unix(errno);
+ }
+
+ if (S_ISLNK(smb_dname->st.st_ex_mode)) {
+ /* Is what it points to a directory ? */
+ if(SMB_VFS_STAT(conn, smb_dname) != 0) {
+ return map_nt_error_from_unix(errno);
+ }
+ if (!(S_ISDIR(smb_dname->st.st_ex_mode))) {
+ return NT_STATUS_NOT_A_DIRECTORY;
+ }
+ ret = SMB_VFS_UNLINK(conn, smb_dname);
+ } else {
+ ret = SMB_VFS_RMDIR(conn, smb_dname->base_name);
+ }
+ if (ret == 0) {
+ notify_fname(conn, NOTIFY_ACTION_REMOVED,
+ FILE_NOTIFY_CHANGE_DIR_NAME,
+ smb_dname->base_name);
+ return NT_STATUS_OK;
+ }
+
+ if(((errno == ENOTEMPTY)||(errno == EEXIST)) && lp_veto_files(SNUM(conn))) {
+ /*
+ * Check to see if the only thing in this directory are
+ * vetoed files/directories. If so then delete them and
+ * retry. If we fail to delete any of them (and we *don't*
+ * do a recursive delete) then fail the rmdir.
+ */
+ SMB_STRUCT_STAT st;
+ const char *dname = NULL;
+ char *talloced = NULL;
+ long dirpos = 0;
+ struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn,
+ smb_dname->base_name, NULL,
+ 0);
+
+ if(dir_hnd == NULL) {
+ errno = ENOTEMPTY;
+ goto err;
+ }
+
+ while ((dname = ReadDirName(dir_hnd, &dirpos, &st,
+ &talloced)) != NULL) {
+ if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0)) {
+ TALLOC_FREE(talloced);
+ continue;
+ }
+ if (!is_visible_file(conn, smb_dname->base_name, dname,
+ &st, false)) {
+ TALLOC_FREE(talloced);
+ continue;
+ }
+ if(!IS_VETO_PATH(conn, dname)) {
+ TALLOC_FREE(dir_hnd);
+ TALLOC_FREE(talloced);
+ errno = ENOTEMPTY;
+ goto err;
+ }
+ TALLOC_FREE(talloced);
+ }
+
+ /* We only have veto files/directories.
+ * Are we allowed to delete them ? */
+
+ if(!lp_recursive_veto_delete(SNUM(conn))) {
+ TALLOC_FREE(dir_hnd);
+ errno = ENOTEMPTY;
+ goto err;
+ }
+
+ /* Do a recursive delete. */
+ RewindDir(dir_hnd,&dirpos);
+ while ((dname = ReadDirName(dir_hnd, &dirpos, &st,
+ &talloced)) != NULL) {
+ struct smb_filename *smb_dname_full = NULL;
+ char *fullname = NULL;
+ bool do_break = true;
+ NTSTATUS status;
+
+ if (ISDOT(dname) || ISDOTDOT(dname)) {
+ TALLOC_FREE(talloced);
+ continue;
+ }
+ if (!is_visible_file(conn, smb_dname->base_name, dname,
+ &st, false)) {
+ TALLOC_FREE(talloced);
+ continue;
+ }
+
+ fullname = talloc_asprintf(ctx,
+ "%s/%s",
+ smb_dname->base_name,
+ dname);
+
+ if(!fullname) {
+ errno = ENOMEM;
+ goto err_break;
+ }
+
+ status = create_synthetic_smb_fname(talloc_tos(),
+ fullname, NULL,
+ NULL,
+ &smb_dname_full);
+ if (!NT_STATUS_IS_OK(status)) {
+ errno = map_errno_from_nt_status(status);
+ goto err_break;
+ }
+
+ if(SMB_VFS_LSTAT(conn, smb_dname_full) != 0) {
+ goto err_break;
+ }
+ if(smb_dname_full->st.st_ex_mode & S_IFDIR) {
+ if(!recursive_rmdir(ctx, conn,
+ smb_dname_full)) {
+ goto err_break;
+ }
+ if(SMB_VFS_RMDIR(conn,
+ smb_dname_full->base_name) != 0) {
+ goto err_break;
+ }
+ } else if(SMB_VFS_UNLINK(conn, smb_dname_full) != 0) {
+ goto err_break;
+ }
+
+ /* Successful iteration. */
+ do_break = false;
+
+ err_break:
+ TALLOC_FREE(fullname);
+ TALLOC_FREE(smb_dname_full);
+ TALLOC_FREE(talloced);
+ if (do_break)
+ break;
+ }
+ TALLOC_FREE(dir_hnd);
+ /* Retry the rmdir */
+ ret = SMB_VFS_RMDIR(conn, smb_dname->base_name);
+ }
+
+ err:
+
+ if (ret != 0) {
+ DEBUG(3,("rmdir_internals: couldn't remove directory %s : "
+ "%s\n", smb_fname_str_dbg(smb_dname),
+ strerror(errno)));
+ return map_nt_error_from_unix(errno);
+ }
+
+ notify_fname(conn, NOTIFY_ACTION_REMOVED,
+ FILE_NOTIFY_CHANGE_DIR_NAME,
+ smb_dname->base_name);
+
+ return NT_STATUS_OK;
+}
/****************************************************************************
Close a directory opened by an NT SMB call.
@@ -742,8 +999,7 @@ static NTSTATUS close_directory(struct smb_request *req, files_struct *fsp,
TALLOC_FREE(lck);
- status = rmdir_internals(talloc_tos(), fsp->conn,
- fsp->fsp_name);
+ status = rmdir_internals(talloc_tos(), fsp);
DEBUG(5,("close_directory: %s. Delete on close was set - "
"deleting directory returned %s.\n",
generated by cgit (git 2.34.1) at 2025-01-03 23:49:35 +0000