Skip to content

Commit

Permalink
tests/net/gnrc_ipv6_nib: add tests for router and prefix timeout
Browse files Browse the repository at this point in the history
  • Loading branch information
@fabian18
fabian18 committed Mar 9, 2024
1 parent 9648000 commit bb9ca2e
Showing 1 changed file with 127 additions and 12 deletions.
139 changes: 127 additions & 12 deletions tests/net/gnrc_ipv6_nib/main.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -817,11 +817,11 @@ static void test_handle_pkt__rtr_sol(void)
static size_t _set_rtr_adv(const ipv6_addr_t *ipv6_src,
uint8_t ipv6_hl, uint8_t rtr_adv_code,
bool set_rtr_adv_fields,
uint8_t rtr_adv_flags,
uint8_t rtr_adv_flags, uint32_t t_rtr_reachable_ms, uint16_t t_rtr_alive_s,

Check warning on line 820 in tests/net/gnrc_ipv6_nib/main.c

View workflow job for this annotation

GitHub Actions / static-tests 

line is longer than 100 characters
const uint8_t *sl2ao_addr, size_t sl2ao_addr_len,
uint16_t mtu,
const ipv6_addr_t *pfx, unsigned pfx_len,
uint8_t pfx_flags)
uint8_t pfx_flags, uint32_t t_pfx_valid_s, uint32_t t_pfx_pref_s)
{
size_t icmpv6_len = sizeof(ndp_rtr_adv_t);
ndp_rtr_adv_t *rtr_adv = (ndp_rtr_adv_t *)icmpv6;
Expand All @@ -835,8 +835,8 @@ static size_t _set_rtr_adv(const ipv6_addr_t *ipv6_src,
rtr_adv->flags = rtr_adv_flags;
if (set_rtr_adv_fields) {
rtr_adv->cur_hl = _CUR_HL,
rtr_adv->ltime = byteorder_htons(_RTR_LTIME);
rtr_adv->reach_time = byteorder_htonl(_REACH_TIME);
rtr_adv->ltime = byteorder_htons(t_rtr_alive_s);
rtr_adv->reach_time = byteorder_htonl(t_rtr_reachable_ms);
rtr_adv->retrans_timer = byteorder_htonl(_RETRANS_TIMER);
}

Expand All @@ -857,8 +857,8 @@ static size_t _set_rtr_adv(const ipv6_addr_t *ipv6_src,
pio->len = NDP_OPT_PI_LEN;
pio->prefix_len = pfx_len;
pio->flags = pfx_flags;
pio->valid_ltime = byteorder_htonl(_PIO_PFX_LTIME);
pio->pref_ltime = byteorder_htonl(_PIO_PFX_LTIME);
pio->valid_ltime = byteorder_htonl(t_pfx_valid_s);
pio->pref_ltime = byteorder_htonl(t_pfx_pref_s);
ipv6_addr_init_prefix(&pio->prefix, pfx, pfx_len);
icmpv6_len += sizeof(ndp_opt_pi_t);
}
Expand Down Expand Up @@ -923,9 +923,11 @@ static void test_handle_pkt__rtr_adv__invalid_src(void)
void *state = NULL;
size_t icmpv6_len = _set_rtr_adv(&_rem_gb,
NDP_HOP_LIMIT, 0U, true, 0U,
_REACH_TIME, _RTR_LTIME,
_loc_l2, sizeof(_loc_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A);
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
_netif_exp_t exp_netif;

_get_netif_exp(_mock_netif, &exp_netif);
Expand All @@ -946,9 +948,11 @@ static void test_handle_pkt__rtr_adv__invalid_hl(void)
void *state = NULL;
size_t icmpv6_len = _set_rtr_adv(&_rem_ll,
194U, 0U, true, 0U,
_REACH_TIME, _RTR_LTIME,
_loc_l2, sizeof(_loc_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A);
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
_netif_exp_t exp_netif;

_get_netif_exp(_mock_netif, &exp_netif);
Expand All @@ -969,9 +973,11 @@ static void test_handle_pkt__rtr_adv__invalid_code(void)
void *state = NULL;
size_t icmpv6_len = _set_rtr_adv(&_rem_ll,
NDP_HOP_LIMIT, 201U, true, 0U,
_REACH_TIME, _RTR_LTIME,
_loc_l2, sizeof(_loc_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A);
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
_netif_exp_t exp_netif;

_get_netif_exp(_mock_netif, &exp_netif);
Expand All @@ -994,9 +1000,11 @@ static void test_handle_pkt__rtr_adv__invalid_icmpv6_len(void)

_get_netif_exp(_mock_netif, &exp_netif);
_set_rtr_adv(&_rem_ll, NDP_HOP_LIMIT, 201U, true, 0U,
_REACH_TIME, _RTR_LTIME,
_loc_l2, sizeof(_loc_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A);
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
gnrc_ipv6_nib_handle_pkt(_mock_netif, ipv6, icmpv6,
sizeof(ndp_rtr_adv_t) - 1);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
Expand All @@ -1015,9 +1023,11 @@ static void test_handle_pkt__rtr_adv__invalid_opt_len(void)
void *state = NULL;
size_t icmpv6_len = _set_rtr_adv(&_rem_ll,
NDP_HOP_LIMIT, 201U, true, 0U,
_REACH_TIME, _RTR_LTIME,
_loc_l2, sizeof(_loc_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A);
NDP_OPT_PI_FLAGS_L | NDP_OPT_PI_FLAGS_A,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
ndp_opt_t *opt = (ndp_opt_t *)&_buffer[icmpv6_len];
_netif_exp_t exp_netif;

Expand Down Expand Up @@ -1047,10 +1057,11 @@ static void test_handle_pkt__rtr_adv__success(uint8_t rtr_adv_flags,
void *state = NULL;
size_t icmpv6_len = _set_rtr_adv(&_rem_ll, NDP_HOP_LIMIT, 0U,
set_rtr_adv_fields, rtr_adv_flags,
_REACH_TIME, _RTR_LTIME,
(sl2ao) ? _rem_l2 : NULL, sizeof(_rem_l2),
(mtuo) ? 32397U : 0U,
(pio) ? &_loc_gb : NULL, _LOC_GB_PFX_LEN,
pio_flags);
pio_flags, _PIO_PFX_LTIME, _PIO_PFX_LTIME);
const unsigned exp_addr_count = _netif_addr_count(_mock_netif);
_netif_exp_t exp_netif;

Expand Down Expand Up @@ -1279,6 +1290,108 @@ static void test_change_rtr_adv_iface(void)
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}

static void test_handle_router_timeout(void)
{
gnrc_ipv6_nib_ft_t route;
gnrc_ipv6_nib_pl_t prefix;
void *state = NULL;
uint32_t t_rtr_alive_s = 5; /* [0, 9000]s, 0: not a default router */
size_t icmpv6_len = _set_rtr_adv(&_rem_ll,
NDP_HOP_LIMIT, 0U, true, 0U,
_REACH_TIME, t_rtr_alive_s,
_rem_l2, sizeof(_rem_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
gnrc_ipv6_nib_handle_pkt(_mock_netif, ipv6, icmpv6, icmpv6_len);
/* check that prefix has been added */
bool pfx = false, rtr = false;
while (gnrc_ipv6_nib_pl_iter(_mock_netif->pid, &state, &prefix)) {
pfx = true;
TEST_ASSERT_MESSAGE(ipv6_addr_match_prefix(&prefix.pfx, &_loc_gb) >= _LOC_GB_PFX_LEN,
"Prefix is not the one from the RA");
}
if (!pfx) {
TEST_ASSERT_MESSAGE(false, "Prefix not added");
}
/* check that router has been added */
state = NULL;
while (gnrc_ipv6_nib_ft_iter(NULL, 0, &state, &route)) {
if (ipv6_addr_is_unspecified(&route.dst)) {
rtr = true;
TEST_ASSERT_MESSAGE(ipv6_addr_equal(&_rem_ll, &route.next_hop),
"Default route is not via RA source");
}
}
if (!rtr) {
TEST_ASSERT_MESSAGE(false, "Default route not added");
}
/* timeout router by RA with lifetime 0 */
icmpv6_len = _set_rtr_adv(&_rem_ll,
NDP_HOP_LIMIT, 0U, true, 0U,
_REACH_TIME, 0,
_rem_l2, sizeof(_rem_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
gnrc_ipv6_nib_handle_pkt(_mock_netif, ipv6, icmpv6, icmpv6_len);
/* check that default router has been timed out */
state = NULL;
while (gnrc_ipv6_nib_ft_iter(NULL, 0, &state, &route)) {
if (ipv6_addr_is_unspecified(&route.dst)) {
TEST_ASSERT_MESSAGE(ipv6_addr_equal(&_rem_ll, &route.next_hop),
"Default route was not deleted");
}
}
}

static void test_handle_prefix_timeout(void)
{
gnrc_ipv6_nib_ft_t route;
gnrc_ipv6_nib_pl_t prefix;
void *state = NULL;
uint32_t t_rtr_alive_s = 0; /* [0, 9000]s, 0: not a default router */
size_t icmpv6_len = _set_rtr_adv(&_rem_ll,
NDP_HOP_LIMIT, 0U, true, 0U,
_REACH_TIME, t_rtr_alive_s,
_rem_l2, sizeof(_rem_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L,
_PIO_PFX_LTIME, _PIO_PFX_LTIME);
gnrc_ipv6_nib_handle_pkt(_mock_netif, ipv6, icmpv6, icmpv6_len);
/* check that prefix has been added */
bool pfx = false;
while (gnrc_ipv6_nib_pl_iter(_mock_netif->pid, &state, &prefix)) {
pfx = true;
TEST_ASSERT_MESSAGE(ipv6_addr_match_prefix(&prefix.pfx, &_loc_gb) >= _LOC_GB_PFX_LEN,
"Prefix is not the one from the RA");
}
if (!pfx) {
TEST_ASSERT_MESSAGE(false, "Prefix not added");
}
/* check that router has not been added as default router */
state = NULL;
while (gnrc_ipv6_nib_ft_iter(NULL, 0, &state, &route)) {
if (ipv6_addr_is_unspecified(&route.dst)) {
TEST_ASSERT_MESSAGE(false, "Router should not have been added as a default router");
}
}
/* timeout router by RA with lifetime 0 */
icmpv6_len = _set_rtr_adv(&_rem_ll,
NDP_HOP_LIMIT, 0U, true, 0U,
_REACH_TIME, 0,
_rem_l2, sizeof(_rem_l2),
32397U, &_loc_gb, _LOC_GB_PFX_LEN,
NDP_OPT_PI_FLAGS_L,
0, 0);
gnrc_ipv6_nib_handle_pkt(_mock_netif, ipv6, icmpv6, icmpv6_len);
/* check that prefix has been timed out */
state = NULL;
if (gnrc_ipv6_nib_pl_iter(_mock_netif->pid, &state, &prefix)) {
TEST_ASSERT_MESSAGE(false, "Prefix has been timed out but is still in use");
}
}

static Test *tests_gnrc_ipv6_nib(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
Expand Down Expand Up @@ -1341,6 +1454,8 @@ static Test *tests_gnrc_ipv6_nib(void)
* we do not have access to the (internally defined) contexts required
* for it */
new_TestFixture(test_change_rtr_adv_iface),
new_TestFixture(test_handle_router_timeout),
new_TestFixture(test_handle_prefix_timeout),
};

EMB_UNIT_TESTCALLER(tests, _set_up, NULL, fixtures);
Expand Down

0 comments on commit bb9ca2e

Please sign in to comment.