a752c7ab
 elopes
add first test an...
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/*
* Copyright (C) 2017 Freie Universitรคt 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/gnrc/ipv6/nib.h"
#include "net/gnrc/ipv6/nib/nc.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 IFACE (6)
static void set_up(void)
{
gnrc_ipv6_nib_init();
}
/*
* Creates GNRC_IPV6_NIB_NUMOF neighbor cache entries with different addresses
* and then tries to create another one
* Expected result: gnrc_ipv6_nib_nc_set() returns -ENOMEM
*/
static void test_nib_nc_set__ENOMEM_diff_addr(void)
{
ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
uint8_t l2addr[] = L2ADDR;
for (unsigned i = 0; i < GNRC_IPV6_NIB_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, IFACE, l2addr,
sizeof(l2addr)));
addr.u64[1].u64++;
l2addr[7]++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_nc_set(&addr, IFACE, l2addr,
sizeof(l2addr)));
}
/*
* Creates GNRC_IPV6_NIB_NUMOF neighbor cache entries with different interfaces
* and then tries to create another one
* Expected result: gnrc_ipv6_nib_nc_set() returns -ENOMEM
*/
static void test_nib_nc_set__ENOMEM_diff_iface(void)
{
static const ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
static const uint8_t l2addr[] = L2ADDR;
unsigned iface = IFACE;
for (unsigned i = 0; i < GNRC_IPV6_NIB_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, iface, l2addr,
sizeof(l2addr)));
iface++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_nc_set(&addr, iface, l2addr,
sizeof(l2addr)));
}
/*
* Creates GNRC_IPV6_NIB_NUMOF neighbor cache entries with different addresses
* and interfaces and then tries to create another one
* Expected result: gnrc_ipv6_nib_nc_set() returns -ENOMEM
*/
static void test_nib_nc_set__ENOMEM_diff_addr_iface(void)
{
ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
uint8_t l2addr[] = L2ADDR;
unsigned iface = IFACE;
for (unsigned i = 0; i < GNRC_IPV6_NIB_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, iface, l2addr,
sizeof(l2addr)));
addr.u64[1].u64++;
iface++;
l2addr[7]++;
}
TEST_ASSERT_EQUAL_INT(-ENOMEM, gnrc_ipv6_nib_nc_set(&addr, iface, l2addr,
sizeof(l2addr)));
}
/*
* Creates a neighbor cache entry.
* Expected result: a new entry should exist and contain the given address
* and interface
*/
static void test_nib_nc_set__success(void)
{
void *iter_state = NULL;
ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
uint8_t l2addr[] = L2ADDR;
gnrc_ipv6_nib_nc_t nce;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, IFACE, l2addr,
sizeof(l2addr)));
TEST_ASSERT(gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT_EQUAL_INT(0, memcmp(&nce.ipv6, &addr, sizeof(addr)));
TEST_ASSERT_EQUAL_INT(0, memcmp(&nce.l2addr, &l2addr, sizeof(l2addr)));
TEST_ASSERT_EQUAL_INT(sizeof(l2addr), nce.l2addr_len);
TEST_ASSERT_EQUAL_INT(IFACE, gnrc_ipv6_nib_nc_get_iface(&nce));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNMANAGED,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_AR_STATE_MANUAL,
gnrc_ipv6_nib_nc_get_ar_state(&nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
}
/*
* Creates GNRC_IPV6_NIB_NUMOF neighbor cache entries with different IP
* addresses and interface identifiers and then tries to add another that is
* equal to the last.
* Expected result: gnrc_ipv6_nib_nc_set() returns 0
*/
static void test_nib_nc_set__success_duplicate(void)
{
ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
uint8_t l2addr[] = L2ADDR;
unsigned iface = 0;
for (unsigned i = 0; i < GNRC_IPV6_NIB_NUMOF; i++) {
addr.u64[1].u64++;
iface++;
l2addr[7]++;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, iface, l2addr,
sizeof(l2addr)));
}
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, iface, l2addr,
sizeof(l2addr)));
}
/*
* Creates GNRC_IPV6_NIB_NUMOF neighbor cache entries with different addresses
* and interfaces and then tries to delete one with yet another address.
* Expected result: There should be still GNRC_IPV6_NIB_NUMOF entries in the
* neigbor cache
*/
static void test_nib_nc_del__unknown(void)
{
void *iter_state = NULL;
ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
uint8_t l2addr[] = L2ADDR;
gnrc_ipv6_nib_nc_t nce;
unsigned iface = IFACE, count = 0;
for (unsigned i = 0; i < GNRC_IPV6_NIB_NUMOF; i++) {
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, iface, l2addr,
sizeof(l2addr)));
addr.u64[1].u64++;
iface++;
l2addr[7]++;
}
gnrc_ipv6_nib_nc_del(&addr);
while (gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce)) {
count++;
}
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NUMOF, count);
}
/*
* Creates a neighbor cache entry and removes it.
* Expected result: neighbor cache should be empty
*/
static void test_nib_nc_del__success(void)
{
void *iter_state = NULL;
static const ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
uint8_t l2addr[] = L2ADDR;
gnrc_ipv6_nib_nc_t nce;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, IFACE, l2addr,
sizeof(l2addr)));
gnrc_ipv6_nib_nc_del(&addr);
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
}
/*
* Creates a non-manual neighbor cache entry (as the NIB would create it on an
* incoming NDP packet), sets it to UNREACHABLE and then calls
* gnrc_ipv6_nib_mark_reachable().
* Expected result: The created entry should be the only entry and its state
* should be still unreachable. The event timer is still empty.
*/
static void test_nib_nc_mark_reachable__not_in_neighbor_cache(void)
{
void *iter_state = NULL;
ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
gnrc_ipv6_nib_nc_t nce;
TEST_ASSERT_NOT_NULL(_nib_nc_add(&addr, IFACE,
GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNREACHABLE));
/* check pre-state */
TEST_ASSERT(gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNREACHABLE,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT_NULL(_nib_evtimer.events);
addr.u64[1].u64++;
gnrc_ipv6_nib_nc_mark_reachable(&addr);
/* check if entry is still unmanaged */
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNREACHABLE,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
/* check if there are still no events */
TEST_ASSERT_NULL(_nib_evtimer.events);
/* check if still the only entry */
iter_state = NULL;
TEST_ASSERT(gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
}
/*
* Creates a manual neighbor cache entry , sets it to UNREACHABLE and then calls
* gnrc_ipv6_nib_mark_reachable().
* Expected result: The created entry should be the only entry and its state
* should be still unreachable. The event timer is still empty.
*/
static void test_nib_nc_mark_reachable__unmanaged(void)
{
void *iter_state = NULL;
static const ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
gnrc_ipv6_nib_nc_t nce;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&addr, IFACE, NULL, 0));
/* check pre-state */
TEST_ASSERT(gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNMANAGED,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT_NULL(_nib_evtimer.events);
gnrc_ipv6_nib_nc_mark_reachable(&addr);
/* check if entry is still unmanaged */
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNMANAGED,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
/* check if there are still no events */
TEST_ASSERT_NULL(_nib_evtimer.events);
/* check if still the only entry */
iter_state = NULL;
TEST_ASSERT(gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
}
/*
* Creates a non-manual neighbor cache entry (as the NIB would create it on an
* incoming NDP packet), sets it to a state unequal to REACHABLE and then calls
* gnrc_ipv6_nib_mark_reachable()
* Expected result: the neighbor cache entry should be in state REACHABLE and a
* reachability timeout event for that entry is in the event timer.
*/
static void test_nib_nc_mark_reachable__success(void)
{
void *iter_state = NULL;
_nib_onl_entry_t *node;
#if GNRC_IPV6_NIB_CONF_ARSM
evtimer_msg_event_t *event;
#endif
_nib_iface_t *iface;
static const ipv6_addr_t addr = { .u64 = { { .u8 = GLOBAL_PREFIX },
{ .u64 = TEST_UINT64 } } };
gnrc_ipv6_nib_nc_t nce;
TEST_ASSERT_NOT_NULL((node = _nib_nc_add(&addr, IFACE,
GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNREACHABLE)));
/* set an "infinite" reachability time */
iface = _nib_iface_get(_nib_onl_get_if(node));
iface->reach_time = UINT32_MAX;
/* check pre-state */
TEST_ASSERT(gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNREACHABLE,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
TEST_ASSERT_NULL(_nib_evtimer.events);
gnrc_ipv6_nib_nc_mark_reachable(&addr);
iter_state = NULL;
TEST_ASSERT(gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
#if GNRC_IPV6_NIB_CONF_ARSM
/* check if entry is reachable */
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_REACHABLE,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
/* check if there now is an event for reachability timeout of node */
TEST_ASSERT_NOT_NULL((event = (evtimer_msg_event_t *)_nib_evtimer.events));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_REACH_TIMEOUT, event->msg.type);
TEST_ASSERT_MESSAGE(node == event->msg.content.ptr,
"event's context is not node");
#endif
/* check if still the only entry */
TEST_ASSERT(!gnrc_ipv6_nib_nc_iter(0, &iter_state, &nce));
}
Test *tests_gnrc_ipv6_nib_nc_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_nib_nc_set__ENOMEM_diff_addr),
new_TestFixture(test_nib_nc_set__ENOMEM_diff_iface),
new_TestFixture(test_nib_nc_set__ENOMEM_diff_addr_iface),
new_TestFixture(test_nib_nc_set__success),
new_TestFixture(test_nib_nc_set__success_duplicate),
new_TestFixture(test_nib_nc_del__unknown),
new_TestFixture(test_nib_nc_del__success),
new_TestFixture(test_nib_nc_mark_reachable__not_in_neighbor_cache),
new_TestFixture(test_nib_nc_mark_reachable__unmanaged),
new_TestFixture(test_nib_nc_mark_reachable__success),
/* gnrc_ipv6_nib_nc_iter() is tested during all the tests above */
};
EMB_UNIT_TESTCALLER(tests, set_up, NULL,
fixtures);
return (Test *)&tests;
}
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