cdnutter
/
iBoot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
iBoot/lib/devicetree/tests.c

877 lines
25 KiB
C
Raw Permalink Blame History

/*
* Copyright (C) 2014-2015 Apple Computer, Inc. All rights reserved.
*
* This document is the property of Apple Inc.
* It is considered confidential and proprietary.
*
* This document may not be reproduced or transmitted in any form,
* in whole or in part, without the express written permission of
* Apple Inc.
*/
#include <unittest.h>
#include <mock_syscfg.h>
#include <lib/devicetree.h>
#include <lib/env.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
typedef struct dt_test_data {
void *input;
const void *expected;
size_t input_size;
size_t expected_size;
uint32_t misc;
} dt_test_data;
#define DT_TESTCASE(in, out) { \
.input = (void *)in, \
.input_size = sizeof(in) - 1, \
.expected = out, \
.expected_size = sizeof(out) - 1, \
.misc = 0 \
}
#define DT_TESTCASE_MISC(in, out, misc) { \
.input = in, \
.input_size = sizeof(in) - 1, \
.expected = out, \
.expected_size = sizeof(out) - 1, \
.misc = misc \
}
#define DT_TESTCASE_FAIL(in) { \
.input = in, \
.input_size = sizeof(in) - 1, \
.expected = NULL, \
.expected_size = 0, \
.misc = 0 \
}
#define DT_TESTCASE_FAIL_MISC(in, misc) { \
.input = in, \
.input_size = sizeof(in) - 1, \
.expected = NULL, \
.expected_size = 0, \
.misc = misc \
}
// handy for dumping two buffers side-by-side when tests fail
static void hexdump2(uint8_t *buf1, uint8_t *buf2, size_t size) __unused;
static void hexdump2(uint8_t *buf1, uint8_t *buf2, size_t size) {
for (size_t i = 0; i < size; i += 8) {
printf("%04zx: ", i);
for (size_t j = 0; j < 8; j++) {
if (i + j < size)
printf(" %02x", buf1[i + j]);
else
printf(" ");
}
printf(" ");
for (size_t j = 0; j < 8; j++) {
if (i + j < size)
printf(" %02x", buf2[i + j]);
else
printf(" ");
}
printf(" ");
for (size_t j = 0; j < 8; j++) {
if (i + j < size) {
uint8_t c = buf1[i + j];
if (!isprint(c))
c = '.';
printf("%c", c);
} else {
printf(" ");
}
}
printf(" ");
for (size_t j = 0; j < 8; j++) {
if (i + j < size) {
uint8_t c = buf2[i + j];
if (!isprint(c))
c = '.';
printf("%c", c);
} else {
printf(" ");
}
}
printf("\n");
}
}
dt_node_t *test_common_deserialize(dt_test_data *data)
{
dt_init();
return dt_deserialize((void *)data->input, data->input_size);
}
void test_common_serialize(dt_test_data *data)
{
void *serialize_buf;
TEST_ASSERT_EQ(dt_get_size(), data->expected_size);
serialize_buf = calloc(data->expected_size, 1);
dt_serialize(0, serialize_buf, data->expected_size);
TEST_ASSERT_MEM_EQ(serialize_buf, data->expected, data->expected_size);
free(serialize_buf);
}
uint8_t test_dt1[] =
// root node
"\x01\x00\x00\x00" // 1 property
"\x03\x00\x00\x00" // 3 children
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 1st child
"\x03\x00\x00\x00" // 3 properties
"\x00\x00\x00\x00" // 0 children
// 1st property of 1st child
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x07\x00\x00\x00" // property length 7
"child1\0\0"
// 2nd property of 1st child
"property1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x09\x00\x00\x00" // property length 9
"abcdefghi\0\0\0"
// 3rd property of 1st child
"property2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x08\x00\x00\x00" // property length 8
"01234567"
// 2nd child
"\x03\x00\x00\x00" // 3 properties
"\x01\x00\x00\x00" // 1 child
// 1st property of 2nd child
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x07\x00\x00\x00" // property length 7
"child2\0\0"
// 2nd property of 2nd child
"property1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x00\x00\x00\x00" // property length 0
""
// 3rd property of 2nd child
"property2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x01\x00\x00\x00" // property length 1
"X\x00\x00\x00"
// 1st grandchild
"\x02\x00\x00\x00" // 2 properties
"\x00\x00\x00\x00" // 0 children
// 1st property of 1st grandchild
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0b\x00\x00\x00" // property length 11
"grandchild\x00\x00" //
// 2nd property of 1st grandchild
"theprop\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"YYYY"
// 3rd child
"\x01\x00\x00\x00" // 1 property
"\x00\x00\x00\x00" // 0 children
// 1st property of 3rd child
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x07\x00\x00\x00" // property length 7
"child3\0\0";
void test_find_property(dt_node_t *node, char *propName, void *expected, uint32_t expected_len)
{
char *propNameInOut = propName;
void *propData;
uint32_t propSize;
if (expected != NULL) {
TEST_ASSERT_EQ(FindProperty(node, &propNameInOut, &propData, &propSize), true);
// result should point into the device tree's backing store
TEST_ASSERT_PTR_NEQ(propNameInOut, propName);
TEST_ASSERT_MEM_EQ(propData, expected, expected_len);
TEST_ASSERT_EQ(propSize, expected_len);
} else {
TEST_ASSERT_EQ(FindProperty(node, &propNameInOut, &propData, &propSize), false);
}
}
void test_devicetree_legacy(uintptr_t param)
{
dt_node_t *node;
dt_node_t *root;
dt_node_t *child1, *child2, *child3, *grandchild;
dt_init();
// - 1 for null terminator of the string
dt_deserialize(&test_dt1[0], sizeof(test_dt1) - 1);
// we should be able to find the root of the device tree
TEST_ASSERT_EQ(FindNode(0, "", &root), true);
// An empty path returns the same node
TEST_ASSERT_EQ(FindNode(root, "", &node), true);
TEST_ASSERT_PTR_EQ(root, node);
// none of these should be found
TEST_ASSERT_EQ(FindNode(0, "root", &node), false);
TEST_ASSERT_EQ(FindNode(0, "/", &node), false);
TEST_ASSERT_EQ(FindNode(0, "child0", &node), false);
TEST_ASSERT_EQ(FindNode(0, "child1/grandchild", &node), false);
TEST_ASSERT_EQ(FindNode(0, "child2/grandchild2", &node), false);
TEST_ASSERT_EQ(FindNode(0, "child2/grandchild/child", &node), false);
TEST_ASSERT_EQ(FindNode(0, "child1", &child1), true);
TEST_ASSERT_NOT_NULL(child1);
test_find_property(child1, "name", "child1", strlen("child1") + 1);
test_find_property(child1, "property1", "abcdefghi", 9);
test_find_property(child1, "property2", "01234567", 8);
test_find_property(child1, "someprop", NULL, 0);
TEST_ASSERT_EQ(FindNode(0, "child2", &child2), true);
TEST_ASSERT_NOT_NULL(child2);
test_find_property(child2, "name", "child2", strlen("child2") + 1);
test_find_property(child2, "property1", "", 0);
test_find_property(child2, "property2", "X", 1);
test_find_property(child2, "someprop", NULL, 0);
TEST_ASSERT_EQ(FindNode(0, "child3", &child3), true);
TEST_ASSERT_NOT_NULL(child3);
test_find_property(child3, "name", "child3", strlen("child3") + 1);
test_find_property(child3, "property1", NULL, 0);
test_find_property(child3, "property2", NULL, 0);
TEST_ASSERT_EQ(FindNode(0, "child2/grandchild", &grandchild), true);
TEST_ASSERT_NOT_NULL(grandchild);
test_find_property(grandchild, "name", "grandchild", strlen("grandchild") + 1);
test_find_property(grandchild, "theprop", "YYYY", 4);
}
void test_dt_get_prop(dt_node_t *node, char *propName, void *expected, uint32_t expected_len)
{
char *propNameInOut = propName;
void *propData;
uint32_t propSize;
if (expected != NULL) {
TEST_ASSERT_EQ(dt_get_prop(node, &propNameInOut, &propData, &propSize), true);
// result should point into the device tree's backing store
TEST_ASSERT_PTR_NEQ(propNameInOut, propName);
TEST_ASSERT_MEM_EQ(propData, expected, expected_len);
TEST_ASSERT_EQ(propSize, expected_len);
} else {
TEST_ASSERT_EQ(dt_get_prop(node, &propNameInOut, &propData, &propSize), false);
}
}
void test_dt_deserialize(uintptr_t context)
{
dt_node_t *node;
dt_node_t *root;
dt_node_t *child1, *child2, *child3, *grandchild;
dt_init();
// - 1 for null terminator of the string
root = dt_deserialize(&test_dt1[0], sizeof(test_dt1) - 1);
TEST_ASSERT_NOT_NULL(root);
// size should match the size of the source buffer
TEST_ASSERT_EQ(dt_get_size(), sizeof(test_dt1) - 1);
// we should be able to find the root of the device tree
TEST_ASSERT_PTR_EQ(dt_get_root(), root);
// An empty path returns the same node
TEST_ASSERT_EQ(dt_find_node(root, "", &node), true);
TEST_ASSERT_PTR_EQ(root, node);
// none of these should be found
TEST_ASSERT_EQ(dt_find_node(0, "root", &node), false);
TEST_ASSERT_EQ(dt_find_node(0, "/", &node), false);
TEST_ASSERT_EQ(dt_find_node(0, "child0", &node), false);
TEST_ASSERT_EQ(dt_find_node(0, "child1/grandchild", &node), false);
TEST_ASSERT_EQ(dt_find_node(0, "child2/grandchild2", &node), false);
TEST_ASSERT_EQ(dt_find_node(0, "child2/grandchild/child", &node), false);
TEST_ASSERT_EQ(dt_find_node(0, "child1", &child1), true);
TEST_ASSERT_NOT_NULL(child1);
test_dt_get_prop(child1, "name", "child1", strlen("child1") + 1);
test_dt_get_prop(child1, "property1", "abcdefghi", 9);
test_dt_get_prop(child1, "property2", "01234567", 8);
test_dt_get_prop(child1, "someprop", NULL, 0);
TEST_ASSERT_EQ(dt_find_node(0, "child2", &child2), true);
TEST_ASSERT_NOT_NULL(child2);
test_dt_get_prop(child2, "name", "child2", strlen("child2") + 1);
test_dt_get_prop(child2, "property1", "", 0);
test_dt_get_prop(child2, "property2", "X", 1);
test_dt_get_prop(child2, "someprop", NULL, 0);
TEST_ASSERT_EQ(dt_find_node(0, "child3", &child3), true);
TEST_ASSERT_NOT_NULL(child3);
test_dt_get_prop(child3, "name", "child3", strlen("child3") + 1);
test_dt_get_prop(child3, "property1", NULL, 0);
test_dt_get_prop(child3, "property2", NULL, 0);
TEST_ASSERT_EQ(dt_find_node(0, "child2/grandchild", &grandchild), true);
TEST_ASSERT_NOT_NULL(grandchild);
test_dt_get_prop(grandchild, "name", "grandchild", strlen("grandchild") + 1);
test_dt_get_prop(grandchild, "theprop", "YYYY", 4);
}
// Deserialize and then reserialize device tree,
// verify output is identical to input
void test_dt_serialize(uintptr_t context)
{
dt_test_data data = DT_TESTCASE(test_dt1, test_dt1);
test_common_deserialize(&data);
test_common_serialize(&data);
}
// Deserialize and then reserialize device tree using a buffer
// too small for the result, verify that this results in a panic
void test_dt_serialize_too_small(uintptr_t context)
{
size_t out_buffer_size;
void *serialize_buf;
dt_test_data data = DT_TESTCASE(test_dt1, test_dt1);
test_common_deserialize(&data);
dt_init();
if ((int)context >= 0) {
out_buffer_size = context;
} else {
out_buffer_size = data.expected_size - (size_t)(-1 * (int)context);
}
serialize_buf = calloc(out_buffer_size, 1);
TEST_EXPECT_PANIC();
dt_serialize(0, serialize_buf, out_buffer_size);
free(serialize_buf);
TEST_EXPECT_PANICKED();
}
uint8_t test_dt2[] =
// root node
"\x02\x00\x00\x00" // 2 properties
"\x01\x00\x00\x00" // 1 child
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 2nd property of root
"prop\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"QWER"
// 1st child
"\x03\x00\x00\x00" // 3 properties
"\x00\x00\x00\x00" // 0 children
// 1st property of 1st child
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x07\x00\x00\x00" // property length 7
"child1\0\0"
// 2nd property of 1st child
"prop\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"ASDF"
// 3rd property of 1st child
"prop2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x00\x00\x00\x00"; // property length 0
uint8_t test_dt2_out[] =
// root node
"\x01\x00\x00\x00" // 1 property
"\x01\x00\x00\x00" // 1 child
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 1st child
"\x09\x00\x00\x00" // 9 properties
"\x00\x00\x00\x00" // 0 children
// 1st property of 1st child
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0e\x00\x00\x00" // property length 14
"renamed-child\0\0\0"
// 2nd property of 1st child
"renamed-prop\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"ASDF"
// 3rd property of 1st child
"prop2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x00\x00\x00\x00" // property length 0
// 4th property of 1st child
"newprop32\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"\xcd\xab\x34\x12"
// 5th property of 1st child
"newprop64\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x08\x00\x00\x00" // property length 8
"\xef\xcd\xab\x90\x78\x56\x34\x12"
// 6th property of 1st child
"newpropaddr\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x08\x00\x00\x00" // property length 8
"\x88\x77\x66\x55\x44\x33\x22\x11"
// 7th property of 1st child
"newpropstr\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x08\x00\x00\x00" // property length 8
"strprop\0"
// 8th property of 1st child
"newpropempty\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x00\x00\x00\x00" // property length 0
// 9th property of 1st child
"newpropdata\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0b\x00\x00\x00" // property length 11
"somedata\0xy\0";
void test_dt_update(uintptr_t context)
{
char *prop_name;
dt_node_t *root;
dt_node_t *node;
dt_test_data data = DT_TESTCASE(test_dt2, test_dt2_out);
root = test_common_deserialize(&data);
TEST_ASSERT_NOT_NULL(root);
// removing a property returns true if it existed
TEST_ASSERT(dt_remove_prop(root, "prop"));
// and false if not
TEST_ASSERT(!dt_remove_prop(root, "prop"));
TEST_ASSERT(!dt_remove_prop(root, "prop2"));
TEST_ASSERT(dt_find_node(root, "child1", &node));
dt_set_prop_32(node, "newprop32", 0x1234abcd);
dt_set_prop_64(node, "newprop64", 0x1234567890abcdefULL);
dt_set_prop_addr(node, "newpropaddr", 0x1122334455667788ULL);
dt_set_prop_str(node, "newpropstr", "strprop");
dt_set_prop(node, "newpropempty", "", 0);
dt_set_prop(node, "newpropdata", "somedata\0xy", 11);
// After changing the node's name, it should be findable under
// the new name, and not under the old one
dt_set_prop_str(node, "name", "renamed-child");
TEST_ASSERT(!dt_find_node(root, "child1", &node));
TEST_ASSERT(dt_find_node(root, "renamed-child", &node));
// After changing the property's name, it should be findable under
// the new name, and not under the old one
prop_name = "prop";
TEST_ASSERT(dt_get_prop(node, &prop_name, NULL, NULL));
TEST_ASSERT(dt_rename_prop(node, "prop", "renamed-prop"));
prop_name = "prop";
TEST_ASSERT(!dt_get_prop(node, &prop_name, NULL, NULL));
prop_name = "renamed-prop";
TEST_ASSERT(dt_get_prop(node, &prop_name, NULL, NULL));
test_common_serialize(&data);
}
uint8_t test_dt_update_shorter_in[] =
// root node
"\x04\x00\x00\x00" // 4 properties
"\x00\x00\x00\x00" // 0 children
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 2nd property of root
"prop1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x08\x00\x00\x00" // property length 8
"12345678"
// 3rd property of root
"prop2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x07\x00\x00\x00" // property length 7
"1234567\0"
// 4th property of root
"prop3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x09\x00\x00\x00" // property length 9
"123456789\0\0\0"
// 5th property of root
"prop4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x08\x00\x00\x00" // property length 8
"12345678";
uint8_t test_dt_update_shorter_out[] =
// root node
"\x05\x00\x00\x00" // 5 properties
"\x00\x00\x00\x00" // 0 children
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 2nd property of root
"prop1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"abcd"
// 3rd property of root
"prop2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"ABCD"
// 4th property of root
"prop3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"QWER"
// 5th property of root
"prop4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"ASDFG\0\0\0";
void test_dt_update_shorter(uintptr_t context)
{
dt_node_t *root;
dt_test_data data = DT_TESTCASE(test_dt_update_shorter_in, test_dt_update_shorter_out);
root = test_common_deserialize(&data);
TEST_ASSERT_NOT_NULL(root);
dt_set_prop(root, "prop1", "abcd", 4);
dt_set_prop(root, "prop2", "ABCD", 4);
dt_set_prop(root, "prop3", "QWER", 4);
dt_set_prop(root, "prop4", "ASDFG", 5);
test_common_serialize(&data);
}
uint8_t test_dt_placeholders_data[] =
// root node
"\x09\x00\x00\x00" // num properties
"\x00\x00\x00\x00" // num children
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 2nd property of root (valid keys should get filled in)
"prop1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0c\x00\x00\x80" // placeholder property length 12
"syscfg/ABCD\0"
// 3rd property of root (invalid keys should get elided)
"prop2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0c\x00\x00\x80" // placeholder property length 12
"syscfg/NNNN\0"
// 4th property of root (valid key after invalid key should get filled in)
"prop3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x18\x00\x00\x80" // placeholder property length 24
"syscfg/NNNN,syscfg/ABCD\0"
// 5th property of root (1st value found should get copied)
"prop4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x18\x00\x00\x80" // placeholder property length 24
"syscfg/FFFF,syscfg/ABCD\0"
// 6th property of root (syscg value longer than placeholder)
"prop5\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0c\x00\x00\x80" // placeholder property length 12
"syscfg/BigE\0"
// 7th property of root (syscg value truncated)
"prop6\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0e\x00\x00\x80" // placeholder property length 14
"syscfg/BigE/6\0\0\0"
// 8th property of root (syscg value padded)
"prop7\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0f\x00\x00\x80" // placeholder property length 15
"syscfg/ABCD/12\0\0"
// 9th property of root (macaddr from environment)
"prop8\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x10\x00\x00\x80" // placeholder property length 16
"macaddr/ethaddr\0";
uint8_t test_dt_placeholders_out[] =
// root node
"\x08\x00\x00\x00" // num properties
"\x00\x00\x00\x00" // num children
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 2nd property of root (valid keys should get filled in)
"prop1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x06\x00\x00\x00" // property length 6
"found!\0\0"
// 3rd property of root (valid key after invalid key should get filled in)
"prop3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x06\x00\x00\x00" // property length 6
"found!\0\0"
// 4th property of root (1st value found should get copied)
"prop4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length 4
"yess"
// 5th property of root (syscfg value longer than placeholder)
"prop5\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x1a\x00\x00\x00" // property length 26
"ABCDEFGHIJKLMNOPQRSTUVWXYZ\0\0"
// 6th property of root (syscfg value truncated)
"prop6\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x06\x00\x00\x00" // property length 6
"ABCDEF\0\0"
// 7th property of root (syscfg value padded)
"prop7\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0c\x00\x00\x00" // property length 12
"found!\0\0\0\0\0\0"
// 8th property of root (mac address)
"prop8\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x06\x00\x00\x00" // property length 6
"\x01\x02\x03\x40\x50\x60\0\0";
void test_dt_placeholders(uintptr_t context)
{
dt_node_t *root;
mock_syscfg_reset();
mock_syscfg_add('ABCD', "found!", strlen("found!"));
mock_syscfg_add('FFFF', "yess", strlen("yess"));
mock_syscfg_add('BigE', "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 26);
env_set("ethaddr", "01:02:03:40:50:60", 0);
dt_test_data data = DT_TESTCASE(test_dt_placeholders_data, test_dt_placeholders_out);
root = test_common_deserialize(&data);
TEST_ASSERT_NOT_NULL(root);
test_common_serialize(&data);
}
uint8_t test_dt_placeholders_zeroes_data[] =
// root node
"\x04\x00\x00\x00" // num properties
"\x00\x00\x00\x00" // num children
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 2nd property of root
"prop1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x09\x00\x00\x80" // property length
"zeroes/2\0\0\0\0"
// 3nd property of root
"prop2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x09\x00\x00\x80" // property length
"zeroes/4\0\0\0\0"
// 4th property of root
"prop3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x0c\x00\x00\x80" // property length
"zeroes/0x20\0";
uint8_t test_dt_placeholders_zeroes_out[] =
// root node
"\x04\x00\x00\x00" // num properties
"\x00\x00\x00\x00" // num children
// 1st property of root
"name\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x05\x00\x00\x00" // property length 5
"root\0\0\0\0"
// 2nd property of root
"prop1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x02\x00\x00\x00" // property length
"\0\0\0\0"
// 3nd property of root
"prop2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x04\x00\x00\x00" // property length
"\0\0\0\0"
// 4th property of root
"prop3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\x20\x00\x00\x00" // property length
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
void test_dt_placeholders_zeroes(uintptr_t context)
{
dt_node_t *root;
dt_test_data data = DT_TESTCASE(test_dt_placeholders_zeroes_data, test_dt_placeholders_zeroes_out);
root = test_common_deserialize(&data);
TEST_ASSERT_NOT_NULL(root);
test_common_serialize(&data);
}
void test_common_short(dt_test_data *data)
{
dt_node_t *root;
// Start by making sure the data is well-formed
root = test_common_deserialize(data);
TEST_ASSERT_NOT_NULL(root);
test_common_serialize(data);
// Now chop off a byte at a time, verifying we get a failure each time
for (size_t i = 0; i < data->input_size; i++) {
dt_init();
root = dt_deserialize((void *)data->input, i);
TEST_ASSERT_NULL(root);
}
}
void test_dt_short1(uintptr_t context)
{
uint8_t input_data[] =
"\x00\x00\x00\x00\00\x00\x00\x00" // no properties, no children
;
dt_test_data data = DT_TESTCASE(input_data, input_data);
test_common_short(&data);
}
void test_dt_short2(uintptr_t context)
{
uint8_t input_data[] =
"\x01\x00\x00\x00\x00\x00\x00\x00" // one property, no children
"abcdefghijklmnopqrstuvqxzy01234\0" // 31-char name
"\x03\x00\x00\x00" // property len 3
"abc\0" // property value
;
dt_test_data data = DT_TESTCASE(input_data, input_data);
test_common_short(&data);
}
void test_dt_short3(uintptr_t context)
{
uint8_t input_data[] =
"\x01\x00\x00\x00\x01\x00\x00\x00" // one property, one child
"abcdefghijklmnopqrstuvqxzy01234\0" // 31-char name
"\x03\x00\x00\x00" // property len 3
"abc\0" // property value
"\x00\x00\x00\x00\x00\x00\x00\x00" // no properties, no children
;
dt_test_data data = DT_TESTCASE(input_data, input_data);
test_common_short(&data);
}
void test_dt_bad_name(uintptr_t context)
{
uint8_t input_data[] =
"\x01\x00\x00\x00\x00\x00\x00\x00" // one property, no children
"abcdefghijklmnopqrstuvqxzy012345" // 32-char name
"\x03\x00\x00\x00" // property len 3
"abc\0" // property value
;
dt_node_t *root;
dt_test_data data = DT_TESTCASE_FAIL(input_data);
dt_init();
root = dt_deserialize(data.input, data.input_size);
TEST_ASSERT_NULL(root);
}
static struct test_suite devicetree_test_suite = {
.name = "devicetree",
.description = "tests the devicetree parser",
.test_cases = {
{ "devicetree_legacy", test_devicetree_legacy, 0 },
{ "dt_deserialize", test_dt_deserialize, 0 },
{ "dt_serialize", test_dt_serialize, 0 },
{ "dt_serialize_too_small0", test_dt_serialize, 0 },
{ "dt_serialize_too_small1", test_dt_serialize, 1 },
{ "dt_serialize_too_small-1", test_dt_serialize, (uintptr_t)-1LL },
{ "dt_update", test_dt_update, 0 },
{ "dt_update_shorter", test_dt_update_shorter, 0 },
{ "dt_placeholders", test_dt_placeholders, 0 },
{ "dt_placeholders_zeroes", test_dt_placeholders_zeroes, 0 },
{ "dt_short1", test_dt_short1, 0 },
{ "dt_short2", test_dt_short2, 0 },
{ "dt_short3", test_dt_short3, 0 },
{ "dt_bad_name", test_dt_bad_name, 0 },
TEST_CASE_LAST
}
};
TEST_SUITE(devicetree_test_suite);
bool env_blacklist(const char *name, bool write)
{
return false;
}
bool env_blacklist_nvram(const char *name)
{
return false;
}
Reference in New Issue View Git Blame Copy Permalink