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RIOT/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-pl.c

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/*
* Copyright (C) 2016 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @{
*
* @file
* @author Martine Lenders <m.lenders@fu-berlin.de>
*/
#include <inttypes.h>
#include "net/ipv6/addr.h"
#include "net/gnrc/ipv6/nib.h"
#include "net/gnrc/ipv6/nib/pl.h"
#include "_nib-internal.h"
#include "unittests-constants.h"
#include "tests-gnrc_ipv6_nib.h"
#define LINK_LOCAL_PREFIX { 0xfe, 0x08, 0, 0, 0, 0, 0, 0 }
#define GLOBAL_PREFIX { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0 }
#define L2ADDR { 0x90, 0xd5, 0x8e, 0x8c, 0x92, 0x43, 0x73, 0x5c }
#define GLOBAL_PREFIX_LEN (30)
#define IFACE (6)
static void set_up(void)
{
evtimer_event_t *tmp;
for (evtimer_event_t *ptr = _nib_evtimer.events;
(ptr != NULL) && (tmp = (ptr->next), 1);
ptr = tmp) {
evtimer_del((evtimer_t *)(&_nib_evtimer), ptr);
}
_nib_init();
}
/*
* Tries to create a prefix list entry with the unspecified address (::) as
* prefix.
* Expected result: gnrc_ipv6_nib_pl_set() returns -EINVAL
*/
static void test_nib_pl_set__EINVAL_unspec_addr(void)
{
TEST_ASSERT_EQUAL_INT(-EINVAL, gnrc_ipv6_nib_pl_set(IFACE,
&ipv6_addr_unspecified,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
}
/*
* Tries to create a prefix list entry with a link-local prefix (fe80::) as
* prefix.
* Expected result: gnrc_ipv6_nib_pl_set() returns -EINVAL
*/
static void test_nib_pl_set__EINVAL_link_local(void)
{
TEST_ASSERT_EQUAL_INT(-EINVAL, gnrc_ipv6_nib_pl_set(IFACE,
&ipv6_addr_link_local_prefix,
GLOBAL_PREFIX_LEN,
UINT32_MAX,
UINT32_MAX));
}
/*
* Tries to create a prefix list entry with the multicast address as
* prefix.
* Expected result: gnrc_ipv6_nib_pl_set() returns -EINVAL
*/
static void test_nib_pl_set__EINVAL_mc_addr(void)
{
TEST_ASSERT_EQUAL_INT(-EINVAL, gnrc_ipv6_nib_pl_set(IFACE,
&ipv6_addr_all_nodes_link_local,
GLOBAL_PREFIX_LEN,
UINT32_MAX,
UINT32_MAX));
}
/*
* Tries to create multiple prefix list entries with prefix length 0 and > 128.
* Expected result: gnrc_ipv6_nib_pl_set() always returns -EINVAL
*/
static void test_nib_pl_set__EINVAL_pfx_len(void)
{
static const ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX } } };
TEST_ASSERT_EQUAL_INT(-EINVAL, gnrc_ipv6_nib_pl_set(IFACE, &pfx, 0,
UINT32_MAX,
UINT32_MAX));
}
#if CONFIG_GNRC_IPV6_NIB_NUMOF < CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF
#define MAX_NUMOF (CONFIG_GNRC_IPV6_NIB_NUMOF)
#else /* CONFIG_GNRC_IPV6_NIB_NUMOF < CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF */
#define MAX_NUMOF (CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF)
#endif
/*
* Creates MAX_NUMOF prefix list entries with different interfaces and then
* tries to create another one
* Expected result: gnrc_ipv6_nib_pl_set() returns -ENOMEM
*/
static void test_nib_pl_set__ENOMEM_diff_iface(void)
{
static const ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
unsigned iface = IFACE;
for (unsigned i = 0; i < MAX_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(iface, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
iface++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_pl_set(iface, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX,
UINT32_MAX));
}
/*
* Creates CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF prefix list entries with different prefix of
* the same length and then tries to create another one
* Expected result: gnrc_ipv6_nib_pl_set() returns -ENOMEM
*/
static void test_nib_pl_set__ENOMEM_diff_pfx(void)
{
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
for (unsigned i = 0; i < CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
pfx.u16[0].u16++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX,
UINT32_MAX));
}
/*
* Creates CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF prefix list entries with different prefix of
* the same length and different interfaces and then tries to create another one
* Expected result: gnrc_ipv6_nib_pl_set() returns -ENOMEM
*/
static void test_nib_pl_set__ENOMEM_diff_iface_pfx(void)
{
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
unsigned iface = IFACE;
for (unsigned i = 0; i < MAX_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(iface, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
iface++;
pfx.u16[0].u16++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_pl_set(iface, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX,
UINT32_MAX));
}
/*
* Creates CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF prefix list entries with prefixes of
* different length and then tries to create another one
* Expected result: gnrc_ipv6_nib_pl_set() returns -ENOMEM
*/
static void test_nib_pl_set__ENOMEM_diff_pfx_len(void)
{
static const ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
unsigned pfx_len = GLOBAL_PREFIX_LEN;
for (unsigned i = 0; i < CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx, pfx_len,
UINT32_MAX, UINT32_MAX));
pfx_len--;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_pl_set(IFACE, &pfx, pfx_len,
UINT32_MAX,
UINT32_MAX));
}
/*
* Creates MAX_NUMOF prefix list entries with prefixes of different length and
* different interfaces and then tries to create another one
* Expected result: gnrc_ipv6_nib_pl_set() returns -ENOMEM
*/
static void test_nib_pl_set__ENOMEM_diff_iface_pfx_len(void)
{
static const ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
unsigned pfx_len = GLOBAL_PREFIX_LEN, iface = IFACE;
for (unsigned i = 0; i < MAX_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(iface, &pfx, pfx_len,
UINT32_MAX, UINT32_MAX));
pfx_len--;
iface++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_pl_set(iface, &pfx, pfx_len,
UINT32_MAX,
UINT32_MAX));
}
/*
* Creates CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF prefix list entries with different prefixes
* and then tries to create another one
* Expected result: gnrc_ipv6_nib_pl_set() returns -ENOMEM
*/
static void test_nib_pl_set__ENOMEM_diff_pfx_pfx_len(void)
{
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
unsigned pfx_len = GLOBAL_PREFIX_LEN;
for (unsigned i = 0; i < CONFIG_GNRC_IPV6_NIB_OFFL_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx, pfx_len,
UINT32_MAX, UINT32_MAX));
pfx_len--;
pfx.u16[0].u16++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_pl_set(IFACE, &pfx, pfx_len,
UINT32_MAX,
UINT32_MAX));
}
/*
* Creates MAX_NUMOF prefix list entries with different prefixes and different
* interfaces then tries to create another one
* Expected result: gnrc_ipv6_nib_pl_set() returns -ENOMEM
*/
static void test_nib_pl_set__ENOMEM_diff_iface_pfx_pfx_len(void)
{
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
unsigned pfx_len = GLOBAL_PREFIX_LEN, iface = IFACE;
for (unsigned i = 0; i < MAX_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(iface, &pfx, pfx_len,
UINT32_MAX, UINT32_MAX));
pfx_len--;
pfx.u16[0].u16++;
iface++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_pl_set(iface, &pfx, pfx_len,
UINT32_MAX,
UINT32_MAX));
}
/*
* Creates MAX_NUMOF prefix list entries with different prefixes and different
* interfaces and then tries to add another equal to the last.
* Expected result: should return not NULL (the last)
*/
static void test_nib_pl_set__success_duplicate(void)
{
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
unsigned pfx_len = GLOBAL_PREFIX_LEN, iface = IFACE;
for (unsigned i = 0; i < MAX_NUMOF; i++) {
pfx_len--;
pfx.u16[0].u16++;
iface++;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(iface, &pfx, pfx_len,
UINT32_MAX, UINT32_MAX));
}
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(iface, &pfx, pfx_len,
UINT32_MAX, UINT32_MAX));
}
/*
* Creates a prefix list entry then creates it again with a different valid and
* preferred lifetime.
* Expected result: should be able to be created and the lifetimes should have
* been changed
*/
static void test_nib_pl_set__success_change(void)
{
gnrc_ipv6_nib_pl_t ple;
void *iter_state = NULL;
static const ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
TEST_UINT32,
TEST_UINT32 - TEST_UINT8));
TEST_ASSERT(gnrc_ipv6_nib_pl_iter(0, &iter_state, &ple));
TEST_ASSERT(ple.valid_until != UINT32_MAX);
TEST_ASSERT(ple.pref_until != UINT32_MAX);
TEST_ASSERT(!gnrc_ipv6_nib_pl_iter(0, &iter_state, &ple));
}
/*
* Creates a prefix list entry then creates it again with a different valid and
* preferred lifetime.
* Expected result: a new entry should exist and contain the given prefix,
* interface, and lifetimes
*/
static void test_nib_pl_set__success(void)
{
gnrc_ipv6_nib_pl_t ple;
void *iter_state = NULL;
static const ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
TEST_ASSERT(gnrc_ipv6_nib_pl_iter(0, &iter_state, &ple));
TEST_ASSERT(ipv6_addr_match_prefix(&ple.pfx, &pfx) >= GLOBAL_PREFIX_LEN);
TEST_ASSERT_EQUAL_INT(GLOBAL_PREFIX_LEN, ple.pfx_len);
TEST_ASSERT_EQUAL_INT(IFACE, ple.iface);
TEST_ASSERT_EQUAL_INT(UINT32_MAX, ple.valid_until);
TEST_ASSERT_EQUAL_INT(UINT32_MAX, ple.pref_until);
TEST_ASSERT(!gnrc_ipv6_nib_pl_iter(0, &iter_state, &ple));
}
/*
* Creates MAX_NUMOF prefix list entries with different prefix and interfaces
* and then tries to delete one with yet another prefix and interface.
* Expected result: There should be still CONFIG_GNRC_IPV6_NIB_NUMOF entries in the
* neighbor cache
*/
static void test_nib_pl_del__unknown(void)
{
void *iter_state = NULL;
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
gnrc_ipv6_nib_pl_t ple;
unsigned pfx_len = GLOBAL_PREFIX_LEN, iface = IFACE, count = 0;
for (unsigned i = 0; i < MAX_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(iface, &pfx, pfx_len,
UINT32_MAX, UINT32_MAX));
pfx_len--;
pfx.u16[0].u16++;
iface++;
}
gnrc_ipv6_nib_pl_del(iface, &pfx, pfx_len);
while (gnrc_ipv6_nib_pl_iter(0, &iter_state, &ple)) {
count++;
}
TEST_ASSERT_EQUAL_INT(MAX_NUMOF, count);
}
/*
* Creates a prefix entry and removes it.
* Expected result: prefix entry should be empty
*/
static void test_nib_pl_del__success(void)
{
void *iter_state = NULL;
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
gnrc_ipv6_nib_pl_t ple;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx, GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
gnrc_ipv6_nib_pl_del(IFACE, &pfx, GLOBAL_PREFIX_LEN);
TEST_ASSERT(!gnrc_ipv6_nib_pl_iter(0, &iter_state, &ple));
}
/**
* Creates three prefix list entries and removes the second one.
* The prefix list is then iterated.
* Expected result: there should be two prefix list entries returned, the first
* and the third one
*/
static void test_nib_pl_iter__empty_in_the_middle(void)
{
gnrc_ipv6_nib_pl_t ple;
void *iter_state = NULL;
ipv6_addr_t pfx = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
int count = 0;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
pfx.u16[0].u16++;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
pfx.u16[0].u16++;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_pl_set(IFACE, &pfx,
GLOBAL_PREFIX_LEN,
UINT32_MAX, UINT32_MAX));
pfx.u16[0].u16--;
gnrc_ipv6_nib_pl_del(IFACE, &pfx, GLOBAL_PREFIX_LEN);
pfx.u16[0].u16--;
while (gnrc_ipv6_nib_pl_iter(0, &iter_state, &ple)) {
TEST_ASSERT(ipv6_addr_match_prefix(&ple.pfx, &pfx) >= GLOBAL_PREFIX_LEN);
TEST_ASSERT_EQUAL_INT(GLOBAL_PREFIX_LEN, ple.pfx_len);
TEST_ASSERT_EQUAL_INT(IFACE, ple.iface);
TEST_ASSERT_EQUAL_INT(UINT32_MAX, ple.valid_until);
TEST_ASSERT_EQUAL_INT(UINT32_MAX, ple.pref_until);
count++;
pfx.u16[0].u16 += 2; /* we skip the second address */
}
TEST_ASSERT_EQUAL_INT(2, count);
}
Test *tests_gnrc_ipv6_nib_pl_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_nib_pl_set__EINVAL_unspec_addr),
new_TestFixture(test_nib_pl_set__EINVAL_link_local),
new_TestFixture(test_nib_pl_set__EINVAL_mc_addr),
new_TestFixture(test_nib_pl_set__EINVAL_pfx_len),
new_TestFixture(test_nib_pl_set__ENOMEM_diff_pfx),
new_TestFixture(test_nib_pl_set__ENOMEM_diff_iface),
new_TestFixture(test_nib_pl_set__ENOMEM_diff_iface_pfx),
new_TestFixture(test_nib_pl_set__ENOMEM_diff_pfx_len),
new_TestFixture(test_nib_pl_set__ENOMEM_diff_iface_pfx_len),
new_TestFixture(test_nib_pl_set__ENOMEM_diff_pfx_pfx_len),
new_TestFixture(test_nib_pl_set__ENOMEM_diff_iface_pfx_pfx_len),
new_TestFixture(test_nib_pl_set__success_duplicate),
new_TestFixture(test_nib_pl_set__success_change),
new_TestFixture(test_nib_pl_set__success),
new_TestFixture(test_nib_pl_del__unknown),
new_TestFixture(test_nib_pl_del__success),
/* most of gnrc_ipv6_nib_pl_iter() is tested during all the tests above */
new_TestFixture(test_nib_pl_iter__empty_in_the_middle),
};
EMB_UNIT_TESTCALLER(tests, set_up, NULL,
fixtures);
return (Test *)&tests;
}
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