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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* libfdt - Flat Device Tree manipulation
* Testcase/tool constructing an fs tree for further test
* Copyright (C) 2018 David Gibson, Red Hat Inc.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <stdint.h>
#include <sys/stat.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <libfdt.h>
#include "tests.h"
#include "testdata.h"
static void start_dir(const char *name)
{
int rc;
rc = mkdir(name, 0777);
if (rc != 0)
FAIL("mkdir(\"%s\"): %s", name, strerror(errno));
rc = chdir(name);
if (rc != 0)
FAIL("chdir(\"%s\"): %s", name, strerror(errno));
}
static void end_dir(void)
{
int rc;
rc = chdir("..");
if (rc != 0)
FAIL("chdir(..): %s", strerror(errno));
}
static void mkfile(const char *name, void *data, size_t len)
{
int fd;
int rc;
fd = open(name, O_WRONLY|O_CREAT, 0666);
if (fd < 0)
FAIL("open(\"%s\"): %s", name, strerror(errno));
rc = write(fd, data, len);
if (rc < 0)
FAIL("write(\"%s\"): %s", name, strerror(errno));
if (rc != len)
FAIL("write(\"%s\"): short write", name);
rc = close(fd);
if (rc != 0)
FAIL("close(\"%s\"): %s", name, strerror(errno));
}
#define mkfile_str(name, s) \
do { \
char str[] = s; \
mkfile((name), str, sizeof(str)); \
} while (0)
static void mkfile_u32(const char *name, uint32_t val)
{
val = cpu_to_fdt32(val);
mkfile(name, &val, sizeof(val));
}
static void mkfile_u64(const char *name, uint64_t val)
{
val = cpu_to_fdt64(val);
mkfile(name, &val, sizeof(val));
}
int main(int argc, char *argv[])
{
const char *base;
test_init(argc, argv);
if (argc != 2)
CONFIG("Usage: %s <path>", argv[0]);
base = argv[1];
start_dir(base);
mkfile_str("compatible", "test_tree1");
mkfile_u32("prop-int", TEST_VALUE_1);
mkfile_u64("prop-int64", 0xdeadbeef01abcdefULL);
mkfile_str("prop-str", "hello world");
mkfile_u32("#address-cells", 1);
mkfile_u32("#size-cells", 0);
{
start_dir("subnode@1");
mkfile_str("compatible", "subnode1");
mkfile_u32("reg", 1);
mkfile_u32("prop-int", TEST_VALUE_1);
{
start_dir("subsubnode");
mkfile_str("compatible", "subsubnode1\0subsubnode");
mkfile_str("placeholder", "this is a placeholder string\0string2");
mkfile_u32("prop-int", TEST_VALUE_1);
end_dir();
}
{
start_dir("ss1");
end_dir();
}
end_dir();
}
{
start_dir("subnode@2");
mkfile_u32("reg", 2);
mkfile_u32("linux,phandle", 0x2000);
mkfile_u32("prop-int", TEST_VALUE_2);
mkfile_u32("#address-cells", 1);
mkfile_u32("#size-cells", 0);
{
start_dir("subsubnode@0");
mkfile_u32("reg", 0);
mkfile_u32("phandle", 0x2001);
mkfile_str("compatible", "subsubnode2\0subsubnode");
mkfile_u32("prop-int", TEST_VALUE_2);
end_dir();
}
{
start_dir("ss2");
end_dir();
}
end_dir();
}
PASS();
}
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