edl/sgx_file.edl

/*
 * Copyright (C) 2017-2019 Baidu, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Baidu, Inc., nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

enclave {

    include "inc/stat.h"
    include "inc/dirent.h"

    trusted {
        /* define ECALLs here. */
    };

    untrusted {
        int u_open_ocall([out] int *error, [in, string] const char *pathname, int flags);
        int u_open64_ocall([out] int *error, [in, string] const char *path, int oflag, int mode);

        int u_fstat_ocall([out] int *error, int fd, [out] struct stat_t *buf);
        int u_fstat64_ocall([out] int *error, int fd, [out] struct stat64_t *buf);
        int u_stat_ocall([out] int *error, [in, string] const char *path, [out] struct stat_t *buf);
        int u_stat64_ocall([out] int *error, [in, string] const char *path, [out] struct stat64_t *buf);
        int u_lstat_ocall([out] int *error, [in, string] const char *path, [out] struct stat_t *buf);
        int u_lstat64_ocall([out] int *error, [in, string] const char *path, [out] struct stat64_t *buf);
        uint64_t u_lseek_ocall([out] int *error, int fd, int64_t offset, int whence);
        int64_t u_lseek64_ocall([out] int *error, int fd, int64_t offset, int whence);
        int u_ftruncate_ocall([out] int *error, int fd, int64_t length);
        int u_ftruncate64_ocall([out] int *error, int fd, int64_t length);
        int u_truncate_ocall([out] int *error, [in, string] const char *path, int64_t length);
        int u_truncate64_ocall([out] int *error, [in, string] const char *path, int64_t length);

        int u_fsync_ocall([out] int *error, int fd);
        int u_fdatasync_ocall([out] int *error, int fd);
        int u_fchmod_ocall([out] int *error, int fd, uint32_t mode);
        int u_unlink_ocall([out] int *error, [in, string] const char *pathname);
        int u_link_ocall([out] int *error, [in, string] const char *oldpath, [in, string] const char *newpath);
        int u_rename_ocall([out] int *error, [in, string] const char *oldpath, [in, string] const char *newpath);
        int u_chmod_ocall([out] int *error, [in, string] const char *path, uint32_t mode);
        size_t u_readlink_ocall([out] int *error, [in, string] const char *path, [out, size=bufsz] char *buf, size_t bufsz);
        int u_symlink_ocall([out] int *error, [in, string] const char *path1, [in, string] const char *path2);
        char * u_realpath_ocall([out] int *error, [in, string] const char *pathname);                             
        int u_mkdir_ocall([out] int *error, [in, string] const char *pathname, uint32_t mode);
        int u_rmdir_ocall([out] int *error, [in, string] const char *pathname);
        void * u_opendir_ocall([out] int *error, [in, string] const char *pathname);
        int u_readdir64_r_ocall([out] int *error, [user_check] void *dirp, [in, out] struct dirent64_t *entry, [out] struct dirent64_t **result);
        int u_closedir_ocall([out] int *error, [user_check] void *dirp);
        int u_dirfd_ocall([out] int *error, [user_check] void *dirp);
        int u_fstatat64_ocall([out] int *error, int dirfd, [in, string] const char *pathname, [out] struct stat64_t *buf, int flags);
    };
};