/*
* @brief filling the FIB with entries
* It is expected to have 20 FIB entries and 40 used universal address entries
*/
static void test_fib_01_fill_unique_entries(void)
{
_fill_FIB_unique(20);
#if (TEST_FIB_SHOW_OUTPUT == 1)
fib_print_fib_table(test_fib_table);
puts("");
universal_address_print_table();
puts("");
#endif
TEST_ASSERT_EQUAL_INT(20, fib_get_num_used_entries(test_fib_table));
TEST_ASSERT_EQUAL_INT(40, universal_address_get_num_used_entries());
fib_deinit(test_fib_table);
}
/*
* @brief filling the FIB with reusable entries
* It is expected to have 20 FIB entries and 20 universal address entries
*/
static void test_fib_02_fill_multiple_entries(void)
{
size_t entries = 20;
_fill_FIB_multiple(entries, 11);
#if (TEST_FIB_SHOW_OUTPUT == 1)
fib_print_fib_table();
puts("");
universal_address_print_table();
puts("");
#endif
TEST_ASSERT_EQUAL_INT(20, fib_get_num_used_entries());
TEST_ASSERT_EQUAL_INT(20, universal_address_get_num_used_entries());
fib_deinit();
}
/*
* @brief filling the FIB with entries and removing one entry
* It is expected to have 19 FIB entries and still 20 universal address entries
* after removing 02
* (the use count for 02 is reduced to 1 after remove)
*/
static void test_fib_06_remove_one_entry(void)
{
size_t add_buf_size = 16;
char addr_dst[] = "Test address 02";
size_t entries = 20;
_fill_FIB_multiple(entries, 11);
TEST_ASSERT_EQUAL_INT(20, fib_get_num_used_entries());
TEST_ASSERT_EQUAL_INT(20, universal_address_get_num_used_entries());
fib_remove_entry((uint8_t *)addr_dst, add_buf_size - 1);
#if (TEST_FIB_SHOW_OUTPUT == 1)
fib_print_fib_table();
puts("");
universal_address_print_table();
puts("");
#endif
TEST_ASSERT_EQUAL_INT(19, fib_get_num_used_entries());
TEST_ASSERT_EQUAL_INT(20, universal_address_get_num_used_entries());
fib_deinit();
}
/*
* @brief testing prefix with bits
*/
static void test_fib_16_prefix_match(void)
{
size_t add_buf_size = 16;
char addr_dst[add_buf_size];
char addr_nxt[add_buf_size];
char addr_lookup[add_buf_size];
kernel_pid_t iface_id = KERNEL_PID_UNDEF;
uint32_t next_hop_flags = 0;
memset(addr_dst, 0, add_buf_size);
memset(addr_nxt, 0, add_buf_size);
memset(addr_lookup, 0, add_buf_size);
snprintf(addr_dst, add_buf_size, "Test address 1X");
snprintf(addr_nxt, add_buf_size, "Test address 99");
snprintf(addr_lookup, add_buf_size, "Test address 1X");
/* now we change the last byte of addr_dst to have defined trailing 0 bits */
/* test success */
addr_dst[14] = (char)0x80; /* 1000 0000 */
addr_lookup[14] = (char)0x87; /* 1000 0111 */
fib_add_entry(42, (uint8_t *)addr_dst, add_buf_size - 1, 0x123,
(uint8_t *)addr_nxt, add_buf_size - 1, 0x23, 100000);
addr_dst[14] = (char)0x3c; /* 0011 1100 */
fib_add_entry(42, (uint8_t *)addr_dst, add_buf_size - 1, 0x123,
(uint8_t *)addr_nxt, add_buf_size - 1, 0x23, 100000);
memset(addr_nxt, 0, add_buf_size);
int ret = fib_get_next_hop(&iface_id,
(uint8_t *)addr_nxt, &add_buf_size, &next_hop_flags,
(uint8_t *)addr_lookup, add_buf_size - 1, 0x123);
TEST_ASSERT_EQUAL_INT(0, ret);
/* test fail */
addr_dst[14] = (char)0x3c; /* 0011 1100 */
addr_lookup[14] = (char)0x34; /* 0011 0100 */
add_buf_size = 16;
fib_add_entry(42, (uint8_t *)addr_dst, add_buf_size - 1, 0x123,
(uint8_t *)addr_nxt, add_buf_size - 1, 0x23, 100000);
memset(addr_nxt, 0, add_buf_size);
ret = fib_get_next_hop(&iface_id,
(uint8_t *)addr_nxt, &add_buf_size, &next_hop_flags,
(uint8_t *)addr_lookup, add_buf_size - 1, 0x123);
TEST_ASSERT_EQUAL_INT(-EHOSTUNREACH, ret);
/* test success (again) by adjusting the lsb */
addr_lookup[14] = (char)0x3e; /* 0011 1110 */
add_buf_size = 16;
memset(addr_nxt, 0, add_buf_size);
ret = fib_get_next_hop(&iface_id,
(uint8_t *)addr_nxt, &add_buf_size, &next_hop_flags,
(uint8_t *)addr_lookup, add_buf_size - 1, 0x123);
TEST_ASSERT_EQUAL_INT(0, ret);
#if (TEST_FIB_SHOW_OUTPUT == 1)
fib_print_fib_table();
puts("");
universal_address_print_table();
puts("");
#endif
fib_deinit();
}
/*
* @brief testing prefix and exact match
* It is expected receive 23 for addr123 as exact match and
* 12 for addr124
*/
static void test_fib_14_exact_and_prefix_match(void)
{
size_t add_buf_size = 16;
char addr_dst[add_buf_size];
char addr_nxt[add_buf_size];
kernel_pid_t iface_id = KERNEL_PID_UNDEF;
uint32_t next_hop_flags = 0;
char addr_lookup[add_buf_size];
memset(addr_dst, 0, add_buf_size);
memset(addr_nxt, 0, add_buf_size);
snprintf(addr_dst, add_buf_size, "Test addr12");
snprintf(addr_nxt, add_buf_size, "Test address %02d", 12);
fib_add_entry(42, (uint8_t *)addr_dst, add_buf_size - 1, 0x12,
(uint8_t *)addr_nxt, add_buf_size - 1, 0x12, 100000);
snprintf(addr_dst, add_buf_size, "Test addr123");
snprintf(addr_nxt, add_buf_size, "Test address %02d", 23);
fib_add_entry(42, (uint8_t *)addr_dst, add_buf_size - 1, 0x123,
(uint8_t *)addr_nxt, add_buf_size - 1, 0x23, 100000);
snprintf(addr_dst, add_buf_size, "Test addr1234");
snprintf(addr_nxt, add_buf_size, "Test address %02d", 34);
fib_add_entry(42, (uint8_t *)addr_dst, add_buf_size - 1, 0x1234,
(uint8_t *)addr_nxt, add_buf_size - 1, 0x34, 100000);
memset(addr_lookup, 0, add_buf_size);
/* exact match */
snprintf(addr_lookup, add_buf_size, "Test addr123");
int ret = fib_get_next_hop(&iface_id,
(uint8_t *)addr_nxt, &add_buf_size, &next_hop_flags,
(uint8_t *)addr_lookup, add_buf_size - 1, 0x123);
TEST_ASSERT_EQUAL_INT(0, ret);
add_buf_size = 16;
char addr_expect_01[] = "Test address 23";
ret = strncmp(addr_expect_01, addr_nxt, add_buf_size - 1);
TEST_ASSERT_EQUAL_INT(0, ret);
/* prefix match */
add_buf_size = 16;
memset(addr_nxt, 0, add_buf_size);
memset(addr_lookup, 0, add_buf_size);
/* cppcheck: addr_lookup is only passed but not required to be read,
* since we test prefix matching
*/
/* cppcheck-suppress redundantCopy */
snprintf(addr_lookup, add_buf_size, "Test addr124");
ret = fib_get_next_hop(&iface_id,
(uint8_t *)addr_nxt, &add_buf_size, &next_hop_flags,
(uint8_t *)addr_lookup, add_buf_size - 1, 0x124);
TEST_ASSERT_EQUAL_INT(0, ret);
add_buf_size = 16;
char addr_expect_02[] = "Test address 12";
ret = strncmp(addr_expect_02, addr_nxt, add_buf_size);
TEST_ASSERT_EQUAL_INT(0, ret);
#if (TEST_FIB_SHOW_OUTPUT == 1)
fib_print_fib_table();
puts("");
universal_address_print_table();
puts("");
#endif
fib_deinit();
}
/*
* @brief testing prefix entry changing
*/
static void test_fib_20_replace_prefix(void)
{
size_t add_buf_size = 16;
char addr_dst[add_buf_size];
char addr_nxt_hop[add_buf_size];
char addr_nxt[add_buf_size];
char addr_lookup[add_buf_size];
kernel_pid_t iface_id = KERNEL_PID_UNDEF;
uint32_t next_hop_flags = 0;
memset(addr_dst, 0, add_buf_size);
memset(addr_nxt, 0, add_buf_size);
memset(addr_nxt_hop, 0, add_buf_size);
memset(addr_lookup, 0, add_buf_size);
/* set the bytes to 0x01..0x10 of the next-hop */
for(size_t i = 0; i < add_buf_size; i++) {
addr_nxt[i] = i+1;
}
/* set the bytes to 0x01..0x08 of the destination prefix */
for(size_t i = 0; i < add_buf_size/2; i++) {
addr_dst[i] = i+1;
}
/* set the bytes to 0x01..0x0e of the lookup address */
for(size_t i = 0; i < 14; i++) {
addr_lookup[i] = i+1;
}
/* add a prefix entry */
fib_add_entry(&test_fib_table, 42, (uint8_t *)addr_dst,
add_buf_size, 0x123, (uint8_t *)addr_nxt, add_buf_size, 0x23,
100000);
/* check if it matches */
int ret = fib_get_next_hop(&test_fib_table, &iface_id,
(uint8_t *)addr_nxt_hop, &add_buf_size,
&next_hop_flags, (uint8_t *)addr_lookup,
add_buf_size, 0x123);
TEST_ASSERT_EQUAL_INT(0, ret);
TEST_ASSERT_EQUAL_INT(0, memcmp(addr_nxt, addr_nxt_hop, add_buf_size));
fib_remove_entry(&test_fib_table, (uint8_t *)addr_dst,
add_buf_size);
memset(addr_nxt_hop, 0, add_buf_size);
/* set the bytes to 0x02..0x11 of the new next-hop */
for(size_t i = 0; i < add_buf_size; ++i) {
addr_nxt[i] = i+2;
}
/* set the bytes to 0x01..0x0d of the new destination prefix */
for(size_t i = 0; i < 13; i++) {
addr_dst[i] = i+1;
}
/* change the prefix entry */
fib_add_entry(&test_fib_table, 42, (uint8_t *)addr_dst,
add_buf_size, 0x123, (uint8_t *)addr_nxt, add_buf_size, 0x24,
100000);
/* and check again if it matches */
ret = fib_get_next_hop(&test_fib_table, &iface_id,
(uint8_t *)addr_nxt_hop, &add_buf_size, &next_hop_flags,
(uint8_t *)addr_lookup, add_buf_size, 0x123);
TEST_ASSERT_EQUAL_INT(0, ret);
TEST_ASSERT_EQUAL_INT(0, memcmp(addr_nxt, addr_nxt_hop, add_buf_size));
#if (TEST_FIB_SHOW_OUTPUT == 1)
fib_print_fib_table(&test_fib_table);
puts("");
universal_address_print_table();
puts("");
#endif
fib_deinit(&test_fib_table);
}
/*
* @brief testing default gateway address
*/
static void test_fib_19_default_gateway(void)
{
size_t add_buf_size = 16;
char addr_dst[add_buf_size];
char addr_nxt_hop[add_buf_size];
char addr_nxt[add_buf_size];
char addr_lookup[add_buf_size];
kernel_pid_t iface_id = KERNEL_PID_UNDEF;
uint32_t next_hop_flags = 0;
memset(addr_dst, 0, add_buf_size);
memset(addr_nxt, 0, add_buf_size);
memset(addr_nxt_hop, 0, add_buf_size);
memset(addr_lookup, 0, add_buf_size);
snprintf(addr_lookup, add_buf_size, "Some address X1");
/* set the bytes to 0x01..0x10 of the next-hop */
for(size_t i = 0; i < add_buf_size; i++) {
addr_nxt[i] = i+1;
}
/* add a default gateway entry */
fib_add_entry(&test_fib_table, 42, (uint8_t *)addr_dst,
add_buf_size, 0x123, (uint8_t *)addr_nxt, add_buf_size, 0x23,
100000);
/* check if it matches all */
int ret = fib_get_next_hop(&test_fib_table, &iface_id,
(uint8_t *)addr_nxt_hop, &add_buf_size,
&next_hop_flags, (uint8_t *)addr_lookup,
add_buf_size, 0x123);
TEST_ASSERT_EQUAL_INT(0, ret);
TEST_ASSERT_EQUAL_INT(0, memcmp(addr_nxt, addr_nxt_hop, add_buf_size));
memset(addr_nxt_hop, 0, add_buf_size);
/* set the bytes to 0x02..0x11 of the new next-hop for the default gateway */
for(size_t i = 0; i < add_buf_size; ++i) {
addr_nxt[i] = i+2;
}
/* change the default gateway entry */
fib_add_entry(&test_fib_table, 42, (uint8_t *)addr_dst,
add_buf_size, 0x123, (uint8_t *)addr_nxt, add_buf_size, 0x24,
100000);
/* and check again if it matches all */
ret = fib_get_next_hop(&test_fib_table, &iface_id,
(uint8_t *)addr_nxt_hop, &add_buf_size, &next_hop_flags,
(uint8_t *)addr_lookup, add_buf_size, 0x123);
TEST_ASSERT_EQUAL_INT(0, ret);
TEST_ASSERT_EQUAL_INT(0, memcmp(addr_nxt, addr_nxt_hop, add_buf_size));
#if (TEST_FIB_SHOW_OUTPUT == 1)
fib_print_fib_table(&test_fib_table);
puts("");
universal_address_print_table();
puts("");
#endif
fib_deinit(&test_fib_table);
}
/*
* @brief testing receiving an destination address set matching a specific prefix
*/
static void test_fib_17_get_entry_set(void)
{
size_t addr_buf_size = 16;
char addr_dst[addr_buf_size];
char addr_nxt[addr_buf_size];
/* fill 20 addresses */
for (size_t i = 0; i < 20; ++i) {
/* construct "addresses" for the FIB */
snprintf(addr_dst, addr_buf_size, "Test address %02d", (int)i);
snprintf(addr_nxt, addr_buf_size, "Test address %02d", (int)(i % 11));
fib_add_entry(&test_fib_table, 42,
(uint8_t *)addr_dst, addr_buf_size - 1, 0x0,
(uint8_t *)addr_nxt, addr_buf_size - 1, 0x0, 100000);
}
size_t arr_size = 20;
fib_destination_set_entry_t arr_dst[arr_size];
char prefix[addr_buf_size];
memset(prefix,0, addr_buf_size);
snprintf(prefix, addr_buf_size, "Test address 1");
int ret = fib_get_destination_set(&test_fib_table,
(uint8_t *)prefix, addr_buf_size-1,
&arr_dst[0], &arr_size);
TEST_ASSERT_EQUAL_INT(0, ret);
/* we should receive 10 entries 10 to 19 */
TEST_ASSERT_EQUAL_INT(10, arr_size);
arr_size = 20;
memset(prefix,0, addr_buf_size);
snprintf(prefix, addr_buf_size, "Test address 0");
ret = fib_get_destination_set(&test_fib_table,
(uint8_t *)prefix, addr_buf_size-1,
&arr_dst[0], &arr_size);
TEST_ASSERT_EQUAL_INT(0, ret);
/* we should receive 20 entries 0-19 */
TEST_ASSERT_EQUAL_INT(20, arr_size);
arr_size = 20;
memset(prefix,0, addr_buf_size);
snprintf(prefix, addr_buf_size, "Test address");
ret = fib_get_destination_set(&test_fib_table,
(uint8_t *)prefix, addr_buf_size-1,
&arr_dst[0], &arr_size);
TEST_ASSERT_EQUAL_INT(0, ret);
/* we should receive 20 entries 0-19 */
TEST_ASSERT_EQUAL_INT(20, arr_size);
#if (TEST_FIB_SHOW_OUTPUT == 1)
puts("");
for(size_t i = 0; i < arr_size; ++i) {
for( size_t j = 0; j < arr_dst[i].dest_size; ++j) {
printf("%c", (char)arr_dst[i].dest[j]);
}
puts("");
}
#endif
fib_deinit(&test_fib_table);
}
