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tests: add tests for host NDP behavior

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This commit is contained in:
Martine Lenders 2017-05-18 16:02:20 +02:00
parent 1b36cdf79e
commit 545f54c913
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5 changed files with 958 additions and 0 deletions
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21
tests/gnrc_ipv6_nib/Makefile Normal file
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# name of your application
APPLICATION = gnrc_ipv6_nib
include ../Makefile.tests_common
BOARD_INSUFFICIENT_MEMORY := chronos nucleo32-f031 nucleo32-f042
USEMODULE += gnrc_ipv6
USEMODULE += gnrc_ipv6_nib
USEMODULE += embunit
CFLAGS += -DDEVELHELP
CFLAGS += -DGNRC_NETTYPE_NDP2=GNRC_NETTYPE_TEST
CFLAGS += -DGNRC_PKTBUF_SIZE=512
CFLAGS += -DTEST_SUITES
include $(RIOTBASE)/Makefile.include
test:
# `testrunner` calls `make term` recursively, results in duplicated `TERMFLAGS`.
# So clears `TERMFLAGS` before run.
TERMFLAGS= tests/01-run.py

44
tests/gnrc_ipv6_nib/common.h Normal file
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/*
* Copyright (C) 2017 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.
*/
/**
* @defgroup tests_gnrc_ipv6_nib Common header for GNRC's NIB tests
* @ingroup tests
* @brief Common definitions for GNRC's NIB tests
* @{
*
* @file
*
* @author Martine Lenders <m.lenders@fu-berlin.de>
*/
#ifndef COMMON_H
#define COMMON_H
#include <stdio.h>
#include "net/gnrc.h"
#ifdef __cplusplus
extern "C" {
#endif
#define _CALL(fn) _common_set_up(); _set_up(); puts("Calling " # fn); fn()
extern kernel_pid_t _mock_netif_pid;
void _tests_init(void);
int _mock_netif_get(gnrc_netapi_opt_t *opt);
void _common_set_up(void);
#ifdef __cplusplus
}
#endif
#endif /* COMMON_H */
/** @} */

792
tests/gnrc_ipv6_nib/main.c Normal file
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/*
* Copyright (C) 2017 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.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Tests default configuration of GNRC's Network Information Base
*
* @author Martine Lenders <m.lenders@fu-berlin.de>
*
* @}
*/
#include <errno.h>
#include <stdio.h>
#include "cib.h"
#include "common.h"
#include "embUnit.h"
#include "embUnit/embUnit.h"
#include "net/ethernet.h"
#include "net/gnrc.h"
#include "net/gnrc/ipv6/nib.h"
#include "net/gnrc/ipv6/nib/nc.h"
#include "net/ndp.h"
#include "sched.h"
#define _BUFFER_SIZE (128)
#define _LL0 (0xce)
#define _LL1 (0xab)
#define _LL2 (0xfe)
#define _LL3 (0xad)
#define _LL4 (0xf7)
#define _LL5 (0x26)
static const uint8_t _loc_l2[] = { _LL0, _LL1, _LL2, _LL3, _LL4, _LL5 };
static const ipv6_addr_t _loc_ll = { {
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
_LL0 ^ 2, _LL1, _LL2, 0xff, 0xfe, _LL3, _LL4, _LL5
} };
static const ipv6_addr_t _loc_sol_nodes = { {
0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0xff, _LL3, _LL4, _LL5
} };
#define _loc_iid _loc_ll.u64[1].u8
static const uint8_t _rem_l2[] = { _LL0, _LL1, _LL2, _LL3, _LL4, _LL5 + 1 };
static const ipv6_addr_t _rem_ll = { {
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
_LL0 ^ 2, _LL1, _LL2, 0xff, 0xfe, _LL3, _LL4, _LL5 + 1
} };
#define _rem_iid _rem_ll.u64[1].u8
static uint8_t _buffer[_BUFFER_SIZE];
static ipv6_hdr_t *ipv6 = (ipv6_hdr_t *)&_buffer[0];
static icmpv6_hdr_t *icmpv6 = (icmpv6_hdr_t *)&_buffer[sizeof(ipv6_hdr_t)];
static inline size_t ceil8(size_t size);
static void _set_up(void)
{
_common_set_up();
memset(_buffer, 0, sizeof(_buffer));
gnrc_pktbuf_init();
/* remove messages */
while (msg_avail()) {
msg_t msg;
msg_receive(&msg);
}
}
static void test_get_next_hop_l2addr__link_local_EHOSTUNREACH(kernel_pid_t iface)
{
msg_t msg;
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
gnrc_pktsnip_t *pkt;
TEST_ASSERT_EQUAL_INT(-EHOSTUNREACH,
gnrc_ipv6_nib_get_next_hop_l2addr(&_rem_ll, iface,
NULL, &nce));
if (iface != KERNEL_PID_UNDEF) {
ndp_nbr_sol_t *nbr_sol;
bool contains_sl2ao = false;
TEST_ASSERT_MESSAGE(gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"Expected neighbor cache entry");
TEST_ASSERT_MESSAGE(ipv6_addr_equal(&_rem_ll, &nce.ipv6),
"_rem_ll != nce->ipv6");
TEST_ASSERT_EQUAL_INT(0, nce.l2addr_len);
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_INCOMPLETE,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_is_router(&nce));
TEST_ASSERT_EQUAL_INT(iface, gnrc_ipv6_nib_nc_get_iface(&nce));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_AR_STATE_GC,
gnrc_ipv6_nib_nc_get_ar_state(&nce));
TEST_ASSERT_EQUAL_INT(1, msg_avail());
msg_receive(&msg);
TEST_ASSERT_EQUAL_INT(GNRC_NETAPI_MSG_TYPE_SND, msg.type);
pkt = msg.content.ptr;
TEST_ASSERT_NOT_NULL(pkt->next);
TEST_ASSERT_NOT_NULL(pkt->next->next);
TEST_ASSERT_EQUAL_INT(sizeof(ndp_nbr_sol_t), pkt->next->next->size);
nbr_sol = pkt->next->next->data;
TEST_ASSERT_EQUAL_INT(ICMPV6_NBR_SOL, nbr_sol->type);
TEST_ASSERT_NOT_NULL(pkt->next->next->next);
for (gnrc_pktsnip_t *opt_snip = pkt->next->next->next; opt_snip != NULL;
opt_snip = opt_snip->next) {
ndp_opt_t *opt = opt_snip->data;
if (opt->type == NDP_OPT_SL2A) {
contains_sl2ao = true;
TEST_ASSERT_EQUAL_INT(1U, opt->len);
TEST_ASSERT_MESSAGE(memcmp(&_loc_l2, opt + 1,
sizeof(_loc_l2)) == 0,
"src_l2 != pkt->l2");
}
}
TEST_ASSERT_MESSAGE(contains_sl2ao, "Sent NS does not contain SL2AO");
gnrc_pktbuf_release(pkt);
TEST_ASSERT(gnrc_pktbuf_is_empty());
}
}
static void test_get_next_hop_l2addr__link_local_EHOSTUNREACH_no_iface(void)
{
test_get_next_hop_l2addr__link_local_EHOSTUNREACH(KERNEL_PID_UNDEF);
}
static void test_get_next_hop_l2addr__link_local_EHOSTUNREACH_iface(void)
{
test_get_next_hop_l2addr__link_local_EHOSTUNREACH(_mock_netif_pid);
}
static void test_get_next_hop_l2addr__link_local_static_conf(void)
{
gnrc_ipv6_nib_nc_t nce;
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_nc_set(&_rem_ll, _mock_netif_pid,
_rem_l2, sizeof(_rem_l2)));
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_get_next_hop_l2addr(&_rem_ll,
_mock_netif_pid,
NULL, &nce));
TEST_ASSERT_MESSAGE((memcmp(&_rem_ll, &nce.ipv6, sizeof(_rem_ll)) == 0),
"_rem_ll != nce.ipv6");
TEST_ASSERT_EQUAL_INT(sizeof(_rem_l2), nce.l2addr_len);
TEST_ASSERT_MESSAGE((memcmp(&_rem_l2, &nce.l2addr, nce.l2addr_len) == 0),
"_rem_l2 != nce.l2addr");
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNMANAGED,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT_EQUAL_INT(_mock_netif_pid, gnrc_ipv6_nib_nc_get_iface(&nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_is_router(&nce));
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_AR_STATE_MANUAL,
gnrc_ipv6_nib_nc_get_ar_state(&nce));
TEST_ASSERT_EQUAL_INT(0, msg_avail());
TEST_ASSERT(gnrc_pktbuf_is_empty());
}
void _simulate_ndp_handshake(const ipv6_addr_t *src, const ipv6_addr_t *dst,
uint8_t adv_flags)
{
msg_t msg;
gnrc_ipv6_nib_nc_t nce;
ndp_nbr_adv_t *nbr_adv = (ndp_nbr_adv_t *)icmpv6;
ndp_opt_t *tl2ao = (ndp_opt_t *)&_buffer[sizeof(ipv6_hdr_t) +
sizeof(ndp_nbr_adv_t)];
/* trigger sending of neighbor discovery */
TEST_ASSERT_EQUAL_INT(-EHOSTUNREACH,
gnrc_ipv6_nib_get_next_hop_l2addr(dst,
_mock_netif_pid,
NULL, &nce));
TEST_ASSERT_EQUAL_INT(1, msg_avail());
/* clear message queue */
msg_receive(&msg);
TEST_ASSERT_EQUAL_INT(GNRC_NETAPI_MSG_TYPE_SND, msg.type);
gnrc_pktbuf_release(msg.content.ptr);
/* generate neighbor advertisement */
ipv6_hdr_set_version(ipv6);
ipv6->hl = 255U;
/* this simulates a reply, so dst and src need to be switched */
memcpy(&ipv6->src, dst, sizeof(ipv6->src));
memcpy(&ipv6->dst, src, sizeof(ipv6->dst));
nbr_adv->type = ICMPV6_NBR_ADV;
/* checksum isn't checked by gnrc_ipv6_nib_handle_pkt() */
nbr_adv->flags = adv_flags;
memcpy(&nbr_adv->tgt, dst, sizeof(nbr_adv->tgt));
tl2ao->type = NDP_OPT_TL2A;
tl2ao->len = 1;
memcpy(tl2ao + 1, _rem_l2, sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, (icmpv6_hdr_t *)nbr_adv,
sizeof(ndp_nbr_adv_t) + 8U);
}
static void test_get_next_hop_l2addr__link_local_after_handshake(uint8_t adv_flags)
{
gnrc_ipv6_nib_nc_t nce;
_simulate_ndp_handshake(&_loc_ll, &_rem_ll, adv_flags);
TEST_ASSERT_EQUAL_INT(0, gnrc_ipv6_nib_get_next_hop_l2addr(&_rem_ll,
_mock_netif_pid,
NULL, &nce));
TEST_ASSERT_MESSAGE((memcmp(&_rem_ll, &nce.ipv6, sizeof(_rem_ll)) == 0),
"_rem_ll != nce.ipv6");
TEST_ASSERT_EQUAL_INT(sizeof(_rem_l2), nce.l2addr_len);
TEST_ASSERT_MESSAGE((memcmp(&_rem_l2, &nce.l2addr, nce.l2addr_len) == 0),
"_rem_l2 != nce.l2addr");
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_REACHABLE,
gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT_EQUAL_INT(_mock_netif_pid, gnrc_ipv6_nib_nc_get_iface(&nce));
if (adv_flags & NDP_NBR_ADV_FLAGS_R) {
TEST_ASSERT(gnrc_ipv6_nib_nc_is_router(&nce));
}
else {
TEST_ASSERT(!gnrc_ipv6_nib_nc_is_router(&nce));
}
TEST_ASSERT_EQUAL_INT(GNRC_IPV6_NIB_NC_INFO_AR_STATE_GC,
gnrc_ipv6_nib_nc_get_ar_state(&nce));
TEST_ASSERT_EQUAL_INT(0, msg_avail());
TEST_ASSERT(gnrc_pktbuf_is_empty());
}
static void test_get_next_hop_l2addr__link_local_after_handshake_iface(void)
{
test_get_next_hop_l2addr__link_local_after_handshake(NDP_NBR_ADV_FLAGS_S);
}
static void test_get_next_hop_l2addr__link_local_after_handshake_iface_router(void)
{
test_get_next_hop_l2addr__link_local_after_handshake(NDP_NBR_ADV_FLAGS_S |
NDP_NBR_ADV_FLAGS_R);
}
static void test_get_next_hop_l2addr__link_local_after_handshake_no_iface(void)
{
gnrc_ipv6_nib_nc_t nce;
_simulate_ndp_handshake(&_loc_ll, &_rem_ll, NDP_NBR_ADV_FLAGS_S);
TEST_ASSERT_EQUAL_INT(-EHOSTUNREACH,
gnrc_ipv6_nib_get_next_hop_l2addr(&_rem_ll,
KERNEL_PID_UNDEF,
NULL, &nce));
}
static void test_handle_pkt__unknown_type(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
ipv6_hdr_set_version(ipv6);
ipv6->hl = 255U;
memcpy(&ipv6->src, &_loc_ll, sizeof(ipv6->src));
memcpy(&ipv6->dst, &_rem_ll, sizeof(ipv6->dst));
icmpv6->type = ICMPV6_ECHO_REQ;
icmpv6->code = 0;
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6,
sizeof(icmpv6_hdr_t));
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
}
static size_t _set_nbr_sol(const ipv6_addr_t *ipv6_src,
const ipv6_addr_t *ipv6_dst,
uint8_t ipv6_hl, uint8_t nbr_sol_code,
const ipv6_addr_t *nbr_sol_tgt,
const uint8_t *sl2ao_addr, size_t sl2ao_addr_len)
{
size_t icmpv6_len = sizeof(ndp_nbr_sol_t);
ndp_nbr_sol_t *nbr_sol = (ndp_nbr_sol_t *)icmpv6;
ipv6_hdr_set_version(ipv6);
ipv6->hl = ipv6_hl;
memcpy(&ipv6->src, ipv6_src, sizeof(ipv6->src));
memcpy(&ipv6->dst, ipv6_dst, sizeof(ipv6->dst));
nbr_sol->type = ICMPV6_NBR_SOL;
nbr_sol->code = nbr_sol_code;
memcpy(&nbr_sol->tgt, nbr_sol_tgt, sizeof(nbr_sol->tgt));
if ((sl2ao_addr != NULL) && (sl2ao_addr_len > 0)) {
ndp_opt_t *sl2ao = (ndp_opt_t *)&_buffer[sizeof(ipv6_hdr_t) +
sizeof(ndp_nbr_sol_t)];
sl2ao->type = NDP_OPT_SL2A;
sl2ao->len = ceil8(sizeof(ndp_opt_t) + sl2ao_addr_len) / 8;
memcpy(sl2ao + 1, sl2ao_addr, sl2ao_addr_len);
icmpv6_len += ceil8(sizeof(ndp_opt_t) + sl2ao_addr_len);
}
return icmpv6_len;
}
static void test_handle_pkt__nbr_sol__invalid_hl(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&_rem_ll, &_loc_sol_nodes, 194U, 0U,
&_loc_ll, _rem_l2, sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_sol__invalid_code(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&_rem_ll, &_loc_sol_nodes, 255U, 201U,
&_loc_ll, _rem_l2, sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_sol__invalid_icmpv6_len(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
_set_nbr_sol(&_rem_ll, &_loc_sol_nodes, 255U, 0U, &_loc_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6,
sizeof(ndp_nbr_sol_t) - 1);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_sol__invalid_tgt(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&_rem_ll, &_loc_sol_nodes, 255U, 0U,
&ipv6_addr_all_routers_site_local, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_sol__invalid_opt_len(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&_rem_ll, &_loc_sol_nodes, 255U, 0U,
&_loc_ll, _rem_l2, sizeof(_rem_l2));
ndp_opt_t *opt = (ndp_opt_t *)&_buffer[icmpv6_len];
opt->type = NDP_OPT_SL2A;
opt->len = 0U;
icmpv6_len += sizeof(ndp_opt_t);
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_sol__invalid_dst(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&ipv6_addr_unspecified, &_loc_ll, 255U, 0U,
&_loc_ll, NULL, 0);
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_sol__invalid_sl2ao(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&ipv6_addr_unspecified, &_loc_sol_nodes,
255U, 0U, &_loc_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_sol__tgt_not_assigned(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&_rem_ll, &_loc_sol_nodes,
255U, 0U, &_rem_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_pkt_is_nbr_adv(gnrc_pktsnip_t *pkt, const ipv6_addr_t *dst,
const ipv6_addr_t *tgt,
const uint8_t *tgt_l2addr,
size_t tgt_l2addr_len)
{
gnrc_netif_hdr_t *netif_hdr;
ipv6_hdr_t *ipv6_hdr;
ndp_nbr_adv_t *nbr_adv;
ndp_opt_t *tl2ao;
/* first snip is a netif header to _mock_netif_pid */
TEST_ASSERT_NOT_NULL(pkt);
TEST_ASSERT_EQUAL_INT(GNRC_NETTYPE_NETIF, pkt->type);
TEST_ASSERT(sizeof(gnrc_netif_hdr_t) <= pkt->size);
netif_hdr = pkt->data;
TEST_ASSERT_EQUAL_INT(_mock_netif_pid, netif_hdr->if_pid);
/* second snip is an IPv6 header to dst */
TEST_ASSERT_NOT_NULL(pkt->next);
TEST_ASSERT_EQUAL_INT(GNRC_NETTYPE_IPV6, pkt->next->type);
TEST_ASSERT_EQUAL_INT(sizeof(ipv6_hdr_t), pkt->next->size);
ipv6_hdr = pkt->next->data;
TEST_ASSERT(!ipv6_addr_is_multicast(&ipv6_hdr->dst));
TEST_ASSERT_MESSAGE(ipv6_addr_equal(dst, &ipv6_hdr->dst),
"dst != ipv6_hdr->dst");
TEST_ASSERT_EQUAL_INT(255, ipv6_hdr->hl);
/* third snip is a valid solicited neighbor advertisement to tgt */
TEST_ASSERT_NOT_NULL(pkt->next->next);
TEST_ASSERT_EQUAL_INT(GNRC_NETTYPE_ICMPV6, pkt->next->next->type);
TEST_ASSERT_EQUAL_INT(sizeof(ndp_nbr_adv_t), pkt->next->next->size);
nbr_adv = pkt->next->next->data;
TEST_ASSERT_EQUAL_INT(ICMPV6_NBR_ADV, nbr_adv->type);
TEST_ASSERT_EQUAL_INT(0, nbr_adv->code);
TEST_ASSERT(!ipv6_addr_is_multicast(&nbr_adv->tgt));
TEST_ASSERT_MESSAGE(ipv6_addr_equal(tgt, &nbr_adv->tgt),
"tgt != nbr_adv->tgt");
TEST_ASSERT(nbr_adv->flags & NDP_NBR_ADV_FLAGS_S);
/* fourth snip is a TL2AO for tgt_l2addr */
TEST_ASSERT_NOT_NULL(pkt->next->next->next);
TEST_ASSERT_EQUAL_INT(GNRC_NETTYPE_UNDEF, pkt->next->next->next->type);
TEST_ASSERT_EQUAL_INT(ceil8(sizeof(ndp_opt_t) + tgt_l2addr_len),
pkt->next->next->next->size);
tl2ao = pkt->next->next->next->data;
TEST_ASSERT_EQUAL_INT(NDP_OPT_TL2A, tl2ao->type);
TEST_ASSERT_EQUAL_INT(1, tl2ao->len);
TEST_ASSERT_MESSAGE(memcmp(tl2ao + 1, tgt_l2addr, tgt_l2addr_len) == 0,
"tl2ao.l2addr != tgt_l2addr");
/* no further options */
TEST_ASSERT_NULL(pkt->next->next->next->next);
}
static void test_handle_pkt__nbr_sol__ll_src(unsigned exp_nud_state,
unsigned exp_ar_state)
{
msg_t msg;
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&_rem_ll, &_loc_sol_nodes,
255U, 0U, &_loc_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"Expected neighbor cache entry");
TEST_ASSERT_MESSAGE(ipv6_addr_equal(&_rem_ll, &nce.ipv6),
"_rem_ll != nce->ipv6");
TEST_ASSERT_EQUAL_INT(sizeof(_rem_l2), nce.l2addr_len);
TEST_ASSERT_MESSAGE(memcmp(_rem_l2, nce.l2addr, nce.l2addr_len) == 0,
"_rem_l2 != nce.l2addr");
TEST_ASSERT_EQUAL_INT(exp_nud_state, gnrc_ipv6_nib_nc_get_nud_state(&nce));
TEST_ASSERT(!gnrc_ipv6_nib_nc_is_router(&nce));
TEST_ASSERT_EQUAL_INT(_mock_netif_pid, gnrc_ipv6_nib_nc_get_iface(&nce));
TEST_ASSERT_EQUAL_INT(exp_ar_state, gnrc_ipv6_nib_nc_get_ar_state(&nce));
TEST_ASSERT_EQUAL_INT(1, msg_avail());
msg_receive(&msg);
TEST_ASSERT_EQUAL_INT(GNRC_NETAPI_MSG_TYPE_SND, msg.type);
test_pkt_is_nbr_adv(msg.content.ptr, &_rem_ll, &_loc_ll, _loc_l2,
sizeof(_loc_l2));
gnrc_pktbuf_release(msg.content.ptr);
TEST_ASSERT(gnrc_pktbuf_is_empty());
}
static void test_handle_pkt__nbr_sol__ll_src_empty_nc(void)
{
test_handle_pkt__nbr_sol__ll_src(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_STALE,
GNRC_IPV6_NIB_NC_INFO_AR_STATE_GC);
}
static void test_handle_pkt__nbr_sol__ll_src_unmanaged_nce(void)
{
test_get_next_hop_l2addr__link_local_static_conf();
/* unmanaged entry stays unmanaged */
test_handle_pkt__nbr_sol__ll_src(GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNMANAGED,
GNRC_IPV6_NIB_NC_INFO_AR_STATE_MANUAL);
}
static void test_handle_pkt__nbr_sol__ll_src_no_sl2ao(void)
{
msg_t msg;
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_sol(&_rem_ll, &_loc_sol_nodes,
255U, 0U, &_loc_ll, NULL, 0);
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
TEST_ASSERT_EQUAL_INT(1, msg_avail());
msg_receive(&msg);
TEST_ASSERT_EQUAL_INT(GNRC_NETAPI_MSG_TYPE_SND, msg.type);
test_pkt_is_nbr_adv(msg.content.ptr, &_rem_ll, &_loc_ll, _loc_l2,
sizeof(_loc_l2));
gnrc_pktbuf_release(msg.content.ptr);
TEST_ASSERT(gnrc_pktbuf_is_empty());
}
static size_t _set_nbr_adv(const ipv6_addr_t *ipv6_src,
const ipv6_addr_t *ipv6_dst,
uint8_t ipv6_hl, uint8_t nbr_adv_code,
uint8_t nbr_adv_flags,
const ipv6_addr_t *nbr_adv_tgt,
const uint8_t *tl2ao_addr, size_t tl2ao_addr_len)
{
size_t icmpv6_len = sizeof(ndp_nbr_adv_t);
ndp_nbr_adv_t *nbr_adv = (ndp_nbr_adv_t *)icmpv6;
ipv6_hdr_set_version(ipv6);
ipv6->hl = ipv6_hl;
memcpy(&ipv6->src, ipv6_src, sizeof(ipv6->src));
memcpy(&ipv6->dst, ipv6_dst, sizeof(ipv6->dst));
nbr_adv->type = ICMPV6_NBR_ADV;
nbr_adv->code = nbr_adv_code;
nbr_adv->flags = nbr_adv_flags;
memcpy(&nbr_adv->tgt, nbr_adv_tgt, sizeof(nbr_adv->tgt));
if ((tl2ao_addr != NULL) || (tl2ao_addr_len > 0)) {
ndp_opt_t *tl2ao = (ndp_opt_t *)&_buffer[sizeof(ipv6_hdr_t) +
sizeof(ndp_nbr_adv_t)];
tl2ao->type = NDP_OPT_TL2A;
tl2ao->len = ceil8(sizeof(ndp_opt_t) + tl2ao_addr_len) / 8;
memcpy(tl2ao + 1, tl2ao_addr, tl2ao_addr_len);
icmpv6_len += ceil8(sizeof(ndp_opt_t) + tl2ao_addr_len);
}
return icmpv6_len;
}
static void test_handle_pkt__nbr_adv__invalid_hl(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_adv(&_rem_ll, &_loc_ll, 194U, 0U,
NDP_NBR_ADV_FLAGS_S, &_loc_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_adv__invalid_code(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_adv(&_rem_ll, &_loc_ll, 255U, 201U,
NDP_NBR_ADV_FLAGS_S, &_loc_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_adv__invalid_icmpv6_len(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
_set_nbr_adv(&_rem_ll, &_loc_ll, 255U, 0U, NDP_NBR_ADV_FLAGS_S,
&_loc_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6,
sizeof(ndp_nbr_adv_t) - 1);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_adv__invalid_tgt(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_adv(&_rem_ll, &_loc_ll, 255U, 0U,
NDP_NBR_ADV_FLAGS_S,
&ipv6_addr_all_routers_site_local, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_adv__invalid_flags(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_adv(&_rem_ll, &ipv6_addr_all_nodes_link_local,
255U, 0U, NDP_NBR_ADV_FLAGS_S, &_loc_ll,
NULL, 0);
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_adv__invalid_opt_len(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_adv(&_rem_ll, &_loc_ll, 255U, 0U,
NDP_NBR_ADV_FLAGS_S, &_loc_ll, _rem_l2,
sizeof(_rem_l2));
ndp_opt_t *opt = (ndp_opt_t *)&_buffer[icmpv6_len];
opt->type = NDP_OPT_SL2A;
opt->len = 0U;
icmpv6_len += sizeof(ndp_opt_t);
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_adv__unspecified_src(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_adv(&ipv6_addr_unspecified, &_loc_ll, 255U, 0U,
NDP_NBR_ADV_FLAGS_S, &_loc_ll, _rem_l2,
sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
/* TODO: check other views as well */
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static void test_handle_pkt__nbr_adv__unsolicited(void)
{
gnrc_ipv6_nib_nc_t nce;
void *state = NULL;
size_t icmpv6_len = _set_nbr_adv(&_rem_ll, &_loc_sol_nodes, 255U, 0U,
NDP_NBR_ADV_FLAGS_S, &_loc_ll,
_rem_l2, sizeof(_rem_l2));
gnrc_ipv6_nib_handle_pkt(_mock_netif_pid, ipv6, icmpv6, icmpv6_len);
TEST_ASSERT_MESSAGE(!gnrc_ipv6_nib_nc_iter(0, &state, &nce),
"There is an unexpected neighbor cache entry");
TEST_ASSERT_EQUAL_INT(0, msg_avail());
}
static Test *tests_gnrc_ipv6_nib(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
/* gnrc_ipv6_nib_init() and gnrc_ipv6_nib_init_iface() "tested" in
* set-up (otherwise the following tests wouldn't work) */
/* TODO: ENETUNREACH when non-link-local communication is implemented */
new_TestFixture(test_get_next_hop_l2addr__link_local_EHOSTUNREACH_no_iface),
new_TestFixture(test_get_next_hop_l2addr__link_local_EHOSTUNREACH_iface),
new_TestFixture(test_get_next_hop_l2addr__link_local_static_conf),
new_TestFixture(test_get_next_hop_l2addr__link_local_after_handshake_iface),
new_TestFixture(test_get_next_hop_l2addr__link_local_after_handshake_iface_router),
new_TestFixture(test_get_next_hop_l2addr__link_local_after_handshake_no_iface),
new_TestFixture(test_handle_pkt__unknown_type),
new_TestFixture(test_handle_pkt__nbr_sol__invalid_hl),
new_TestFixture(test_handle_pkt__nbr_sol__invalid_code),
new_TestFixture(test_handle_pkt__nbr_sol__invalid_icmpv6_len),
new_TestFixture(test_handle_pkt__nbr_sol__invalid_tgt),
new_TestFixture(test_handle_pkt__nbr_sol__invalid_opt_len),
new_TestFixture(test_handle_pkt__nbr_sol__invalid_dst),
new_TestFixture(test_handle_pkt__nbr_sol__invalid_sl2ao),
new_TestFixture(test_handle_pkt__nbr_sol__tgt_not_assigned),
/* TODO add tests for unspecified source (involves SLAAC) */
new_TestFixture(test_handle_pkt__nbr_sol__ll_src_empty_nc),
new_TestFixture(test_handle_pkt__nbr_sol__ll_src_unmanaged_nce),
new_TestFixture(test_handle_pkt__nbr_sol__ll_src_no_sl2ao),
new_TestFixture(test_handle_pkt__nbr_adv__invalid_hl),
new_TestFixture(test_handle_pkt__nbr_adv__invalid_code),
new_TestFixture(test_handle_pkt__nbr_adv__invalid_icmpv6_len),
new_TestFixture(test_handle_pkt__nbr_adv__invalid_tgt),
new_TestFixture(test_handle_pkt__nbr_adv__invalid_flags),
new_TestFixture(test_handle_pkt__nbr_adv__invalid_opt_len),
new_TestFixture(test_handle_pkt__nbr_adv__unspecified_src),
new_TestFixture(test_handle_pkt__nbr_adv__unsolicited),
/* solicited tested in get_next_hop_l2addr */
/* gnrc_ipv6_nib_handle_timer_event not testable in this context since
* we do not have access to the (internally defined) contexts required
* for it */
};
EMB_UNIT_TESTCALLER(tests, _set_up, NULL, fixtures);
return (Test *)&tests;
}
int main(void)
{
_tests_init();
TESTS_START();
TESTS_RUN(tests_gnrc_ipv6_nib());
TESTS_END();
return 0;
}
int _mock_netif_get(gnrc_netapi_opt_t *opt)
{
switch (opt->opt) {
case NETOPT_ADDRESS:
if (opt->data_len < sizeof(_loc_l2)) {
return -EOVERFLOW;
}
memcpy(opt->data, _loc_l2, sizeof(_loc_l2));
return sizeof(_loc_l2);
case NETOPT_SRC_LEN: {
uint16_t *val = opt->data;
if (opt->data_len != sizeof(uint16_t)) {
return -EOVERFLOW;
}
*val = sizeof(_loc_l2);
return sizeof(uint16_t);
}
case NETOPT_IPV6_IID:
if (opt->data_len < sizeof(_loc_iid)) {
return -EOVERFLOW;
}
memcpy(opt->data, _loc_iid, sizeof(_loc_iid));
return sizeof(_loc_iid);
case NETOPT_IS_WIRED:
return 1;
case NETOPT_MAX_PACKET_SIZE: {
uint16_t *val = opt->data;
if (opt->data_len != sizeof(uint16_t)) {
return -EOVERFLOW;
}
*val = ETHERNET_DATA_LEN;
return sizeof(uint16_t);
}
default:
return -ENOTSUP;
}
}
static inline size_t ceil8(size_t size)
{
if (size % 8) {
return ((size / 8) + 1) * 8;
}
else {
return size;
}
}

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tests/gnrc_ipv6_nib/mockup_netif.c Normal file
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/*
* Copyright (C) 2017 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 "common.h"
#include "msg.h"
#include "net/gnrc.h"
#include "net/gnrc/ipv6/nib.h"
#include "net/gnrc/ipv6/netif.h"
#include "net/gnrc/netdev.h"
#include "sched.h"
#include "thread.h"
#define _MSG_QUEUE_SIZE (2)
kernel_pid_t _mock_netif_pid = KERNEL_PID_UNDEF;
static char _mock_netif_stack[THREAD_STACKSIZE_DEFAULT];
static gnrc_netreg_entry_t dumper;
static msg_t _main_msg_queue[_MSG_QUEUE_SIZE];
static msg_t _mock_netif_msg_queue[_MSG_QUEUE_SIZE];
static void *_mock_netif_thread(void *args)
{
msg_t msg, reply = { .type = GNRC_NETAPI_MSG_TYPE_ACK };
(void)args;
msg_init_queue(_mock_netif_msg_queue, _MSG_QUEUE_SIZE);
while (1) {
msg_receive(&msg);
switch (msg.type) {
case GNRC_NETAPI_MSG_TYPE_GET:
reply.content.value = (uint32_t)_mock_netif_get(msg.content.ptr);
break;
case GNRC_NETAPI_MSG_TYPE_SET:
reply.content.value = (uint32_t)(-ENOTSUP);
break;
case GNRC_NETAPI_MSG_TYPE_SND:
case GNRC_NETAPI_MSG_TYPE_RCV:
gnrc_pktbuf_release(msg.content.ptr);
}
msg_reply(&msg, &reply);
}
return NULL;
}
void _common_set_up(void)
{
gnrc_ipv6_nib_init();
gnrc_ipv6_nib_init_iface(_mock_netif_pid);
}
void _tests_init(void)
{
msg_init_queue(_main_msg_queue, _MSG_QUEUE_SIZE);
_mock_netif_pid = thread_create(_mock_netif_stack,
sizeof(_mock_netif_stack),
GNRC_NETDEV_MAC_PRIO,
THREAD_CREATE_STACKTEST,
_mock_netif_thread, NULL, "mock_netif");
assert(_mock_netif_pid > KERNEL_PID_UNDEF);
gnrc_netif_add(_mock_netif_pid);
gnrc_ipv6_netif_init_by_dev();
thread_yield();
gnrc_netreg_entry_init_pid(&dumper, GNRC_NETREG_DEMUX_CTX_ALL,
sched_active_pid);
gnrc_netreg_register(GNRC_NETTYPE_NDP2, &dumper);
}
/** @} */

20
tests/gnrc_ipv6_nib/tests/01-run.py Executable file
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#!/usr/bin/env python3
# Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
# Copyright (C) 2016 Takuo Yonezawa <Yonezawa-T2@mail.dnp.co.jp>
#
# 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.
import os
import sys
sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
import testrunner
def testfunc(child):
child.expect(r"OK \(\d+ tests\)")
if __name__ == "__main__":
sys.exit(testrunner.run(testfunc, timeout=1))