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net: tests: Add tests for route management API

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Change-Id: Ic2f8d2d270f63baa0a16ae76f248485bc00eef08
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2016-09-19 15:12:52 +03:00
commit 66d3601dd5
6 changed files with 758 additions and 0 deletions
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6
tests/net/route/Makefile Normal file
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BOARD ?= qemu_x86
MDEF_FILE = prj.mdef
KERNEL_TYPE ?= nano
CONF_FILE = prj.conf
include $(ZEPHYR_BASE)/Makefile.inc

30
tests/net/route/prj.conf Normal file
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CONFIG_NETWORKING=y
CONFIG_NET_YAIP=y
CONFIG_NET_IPV6=y
CONFIG_NET_UDP=y
CONFIG_NET_TCP=n
CONFIG_NET_IPV4=n
CONFIG_NET_MAX_CONTEXTS=4
CONFIG_NET_L2_DUMMY=y
CONFIG_NET_LOG=y
CONFIG_SYS_LOG_SHOW_COLOR=y
CONFIG_TEST_RANDOM_GENERATOR=y
CONFIG_NET_IPV6_ND=n
CONFIG_NET_IPV6_DAD=n
CONFIG_NET_NBUF_TX_COUNT=10
CONFIG_NET_NBUF_RX_COUNT=5
CONFIG_NET_NBUF_DATA_COUNT=10
CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=6
CONFIG_NET_MAX_ROUTES=4
CONFIG_NET_MAX_NEXTHOPS=8
CONFIG_NET_IPV6_MAX_NEIGHBORS=8
#CONFIG_NET_DEBUG_CONTEXT=y
#CONFIG_NET_DEBUG_CORE=y
#CONFIG_NET_DEBUG_UTILS=y
#CONFIG_NET_DEBUG_NET_BUF=y
#CONFIG_NET_DEBUG_CONN=y
#CONFIG_NET_DEBUG_IF=y
#CONFIG_NET_DEBUG_UTILS=y
#CONFIG_NET_DEBUG_ROUTE=y
#CONFIG_NET_DEBUG_IPV6=y
#CONFIG_NET_DEBUG_IPV6_NBR_CACHE=y

5
tests/net/route/prj.mdef Normal file
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% Application : Buffer test
% TASK NAME PRIO ENTRY STACK GROUPS
% ===================================================
TASK MAIN 7 main 2048 [EXE]

3
tests/net/route/src/Makefile Normal file
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obj-y = main.o
ccflags-y += -I${ZEPHYR_BASE}/tests/include
ccflags-y += -I${ZEPHYR_BASE}/net/yaip

710
tests/net/route/src/main.c Normal file
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/* main.c - Application main entry point */
/*
* Copyright (c) 2016 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
#include <errno.h>
#include <misc/printk.h>
#include <sections.h>
#include <tc_util.h>
#include <net/ethernet.h>
#include <net/buf.h>
#include <net/net_ip.h>
#include <net/net_if.h>
#include <net/net_context.h>
#define NET_DEBUG 1
#include "net_private.h"
#include "icmpv6.h"
#include "ipv6.h"
#include "nbr.h"
#include "route.h"
#if defined(CONFIG_NET_DEBUG_ROUTE)
#define DBG(fmt, ...) printk(fmt, ##__VA_ARGS__)
#else
#define DBG(fmt, ...)
#endif
static struct net_context *udp_ctx;
/* Interface 1 is the default host and it has my_addr assigned to it */
static struct in6_addr my_addr = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0x1 } } };
/* Interface 2 is the secondary host for peer device with address peer_addr */
static struct in6_addr peer_addr = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0, 0x0b, 0x0e, 0x0e, 0x3 } } };
/* The dest_addr is only reachable via peer_addr */
static struct in6_addr dest_addr = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0, 0xd, 0xe, 0x5, 0x7 } } };
/* Extra address is assigned to ll_addr */
static struct in6_addr ll_addr = { { { 0xfe, 0x80, 0x43, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0xf2, 0xaa, 0x29, 0x02,
0x04 } } };
static struct in6_addr in6addr_mcast = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0x1 } } };
/* Generic address that we are using to generate some more addresses */
static struct in6_addr generic_addr = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0, 0xbe, 0xef, 0, 0 } } };
static struct net_if *recipient;
static struct net_if *my_iface;
static struct net_if *peer_iface;
static struct net_route_entry *entry;
#define MAX_ROUTES CONFIG_NET_MAX_ROUTES
static const int max_routes = MAX_ROUTES;
static struct net_route_entry *test_routes[MAX_ROUTES];
static struct in6_addr dest_addresses[MAX_ROUTES];
static bool test_failed;
static bool data_failure;
static bool feed_data; /* feed data back to IP stack */
static int msg_sending;
static struct nano_sem wait_data;
#define WAIT_TIME (sys_clock_ticks_per_sec / 4)
#if defined(CONFIG_NANOKERNEL)
#define STACKSIZE 1024
char __noinit __stack fiberStack[STACKSIZE];
#endif
struct net_route_test {
uint8_t mac_addr[sizeof(struct net_eth_addr)];
struct net_linkaddr ll_addr;
};
int net_route_dev_init(struct device *dev)
{
return 0;
}
static uint8_t *net_route_get_mac(struct device *dev)
{
struct net_route_test *route = dev->driver_data;
if (route->mac_addr[0] == 0x00) {
/* 10-00-00-00-00 to 10-00-00-00-FF Documentation RFC7042 */
route->mac_addr[0] = 0x10;
route->mac_addr[1] = 0x00;
route->mac_addr[2] = 0x00;
route->mac_addr[3] = 0x00;
route->mac_addr[4] = 0x00;
route->mac_addr[5] = sys_rand32_get();
}
route->ll_addr.addr = route->mac_addr;
route->ll_addr.len = 6;
return route->mac_addr;
}
static void net_route_iface_init(struct net_if *iface)
{
uint8_t *mac = net_route_get_mac(net_if_get_device(iface));
net_if_set_link_addr(iface, mac, sizeof(struct net_eth_addr));
}
static int tester_send(struct net_if *iface, struct net_buf *buf)
{
if (!buf->frags) {
TC_ERROR("No data to send!\n");
return -ENODATA;
}
/* By default we assume that the test is ok */
data_failure = false;
if (feed_data) {
DBG("Received at iface %p and feeding it into iface %p\n",
iface, recipient);
if (net_recv_data(recipient, buf) < 0) {
TC_ERROR("Data receive failed.");
net_nbuf_unref(buf);
test_failed = true;
}
nano_sem_give(&wait_data);
return 0;
}
DBG("Buf %p to be sent len %lu\n", buf, net_buf_frags_len(buf));
net_nbuf_unref(buf);
if (data_failure) {
test_failed = true;
}
msg_sending = 0;
nano_sem_give(&wait_data);
return 0;
}
static int tester_send_peer(struct net_if *iface, struct net_buf *buf)
{
if (!buf->frags) {
TC_ERROR("No data to send!\n");
return -ENODATA;
}
/* By default we assume that the test is ok */
data_failure = false;
if (feed_data) {
DBG("Received at iface %p and feeding it into iface %p\n",
iface, recipient);
if (net_recv_data(recipient, buf) < 0) {
TC_ERROR("Data receive failed.");
net_nbuf_unref(buf);
test_failed = true;
}
nano_sem_give(&wait_data);
return 0;
}
DBG("Buf %p to be sent len %lu\n", buf, net_buf_frags_len(buf));
net_nbuf_unref(buf);
if (data_failure) {
test_failed = true;
}
msg_sending = 0;
nano_sem_give(&wait_data);
return 0;
}
struct net_route_test net_route_data;
struct net_route_test net_route_data_peer;
static struct net_if_api net_route_if_api = {
.init = net_route_iface_init,
.send = tester_send,
};
static struct net_if_api net_route_if_api_peer = {
.init = net_route_iface_init,
.send = tester_send_peer,
};
#define _ETH_L2_LAYER DUMMY_L2
#define _ETH_L2_CTX_TYPE NET_L2_GET_CTX_TYPE(DUMMY_L2)
NET_DEVICE_INIT_INSTANCE(net_route_test, "net_route_test", host,
net_route_dev_init, &net_route_data, NULL,
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&net_route_if_api, _ETH_L2_LAYER, _ETH_L2_CTX_TYPE, 127);
NET_DEVICE_INIT_INSTANCE(net_route_test_peer, "net_route_test_peer", peer,
net_route_dev_init, &net_route_data_peer, NULL,
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&net_route_if_api_peer, _ETH_L2_LAYER, _ETH_L2_CTX_TYPE, 127);
static bool test_init(void)
{
struct net_if_mcast_addr *maddr;
struct net_if_addr *ifaddr;
int i;
my_iface = net_if_get_default();
peer_iface = net_if_get_default() + 1;
DBG("Interfaces: [%d] my %p, [%d] peer %p\n",
net_if_get_by_iface(my_iface), my_iface,
net_if_get_by_iface(peer_iface), peer_iface);
if (!my_iface) {
TC_ERROR("Interface %p is NULL\n", my_iface);
return false;
}
if (!peer_iface) {
TC_ERROR("Interface %p is NULL\n", peer_iface);
return false;
}
ifaddr = net_if_ipv6_addr_add(my_iface, &my_addr,
NET_ADDR_MANUAL, 0);
if (!ifaddr) {
TC_ERROR("Cannot add IPv6 address %s\n",
net_sprint_ipv6_addr(&my_addr));
return false;
}
/* For testing purposes we need to set the adddresses preferred */
ifaddr->addr_state = NET_ADDR_PREFERRED;
ifaddr = net_if_ipv6_addr_add(my_iface, &ll_addr,
NET_ADDR_MANUAL, 0);
if (!ifaddr) {
TC_ERROR("Cannot add IPv6 address %s\n",
net_sprint_ipv6_addr(&ll_addr));
return false;
}
ifaddr->addr_state = NET_ADDR_PREFERRED;
net_ipv6_addr_create(&in6addr_mcast, 0xff02, 0, 0, 0, 0, 0, 0, 0x0001);
maddr = net_if_ipv6_maddr_add(my_iface, &in6addr_mcast);
if (!maddr) {
TC_ERROR("Cannot add multicast IPv6 address %s\n",
net_sprint_ipv6_addr(&in6addr_mcast));
return false;
}
/* The peer and dest interfaces are just simulated, they are not
* really used so we should not add IP addresses for them.
*/
/* Some test addresses are generated */
for (i = 0; i < max_routes; i++) {
memcpy(&dest_addresses[i], &generic_addr,
sizeof(struct in6_addr));
dest_addresses[i].s6_addr[14] = i + 1;
dest_addresses[i].s6_addr[15] = sys_rand32_get();
}
/* The semaphore is there to wait the data to be received. */
nano_sem_init(&wait_data);
return true;
}
static bool net_ctx_create(void)
{
int ret;
ret = net_context_get(AF_INET6, SOCK_DGRAM, IPPROTO_UDP,
&udp_ctx);
if (ret != 0) {
TC_ERROR("Context create IPv6 UDP test failed (%d vs %d)\n",
ret, 0);
return false;
}
return true;
}
static inline uint8_t get_llao_len(struct net_if *iface)
{
if (iface->link_addr.len == 6) {
return 8;
} else if (iface->link_addr.len == 8) {
return 16;
}
/* What else could it be? */
NET_ASSERT_INFO(0, "Invalid link address length %d",
iface->link_addr.len);
return 0;
}
static inline void set_llao(struct net_linkaddr *lladdr,
uint8_t *llao, uint8_t llao_len, uint8_t type)
{
llao[NET_ICMPV6_OPT_TYPE_OFFSET] = type;
llao[NET_ICMPV6_OPT_LEN_OFFSET] = llao_len >> 3;
memcpy(&llao[NET_ICMPV6_OPT_DATA_OFFSET], lladdr->addr, lladdr->len);
memset(&llao[NET_ICMPV6_OPT_DATA_OFFSET + lladdr->len], 0,
llao_len - lladdr->len - 2);
}
static inline void setup_icmpv6_hdr(struct net_buf *buf, uint8_t type,
uint8_t code)
{
net_buf_add_u8(buf, type);
net_buf_add_u8(buf, code);
memset(net_buf_add(buf, NET_ICMPV6_UNUSED_LEN), 0,
NET_ICMPV6_UNUSED_LEN);
}
static bool net_test_send_na(struct net_if *iface,
struct in6_addr *addr,
struct net_linkaddr *lladdr,
struct in6_addr *dst)
{
struct net_buf *buf, *frag;
uint8_t llao_len;
buf = net_nbuf_get_reserve_tx(0);
NET_ASSERT_INFO(buf, "Out of TX buffers");
buf = net_ipv6_create_raw(buf, net_if_get_ll_reserve(iface, dst),
addr, dst, iface, IPPROTO_ICMPV6);
frag = net_nbuf_get_reserve_data(0);
NET_ASSERT_INFO(frag, "Out of DATA buffers");
net_buf_frag_add(buf, frag);
net_nbuf_set_ll_reserve(buf, net_buf_headroom(frag));
net_nbuf_set_iface(buf, iface);
net_nbuf_set_family(buf, AF_INET6);
net_nbuf_set_ip_hdr_len(buf, sizeof(struct net_ipv6_hdr));
NET_IPV6_BUF(buf)->hop_limit = NET_IPV6_ND_HOP_LIMIT;
setup_icmpv6_hdr(buf->frags, NET_ICMPV6_NA, 0);
net_nbuf_ll_clear(buf);
llao_len = get_llao_len(iface);
net_nbuf_set_ext_len(buf, 0);
net_ipaddr_copy(&NET_ICMPV6_NA_BUF(buf)->tgt, addr);
set_llao(lladdr,
net_nbuf_icmp_data(buf) + sizeof(struct net_icmp_hdr) +
sizeof(struct net_icmpv6_na_hdr),
llao_len, NET_ICMPV6_ND_OPT_TLLAO);
net_buf_add(buf->frags, llao_len + sizeof(struct net_icmp_hdr) +
sizeof(struct net_icmpv6_na_hdr));
NET_ICMPV6_NA_BUF(buf)->flags = NET_ICMPV6_NA_FLAG_SOLICITED;
buf = net_ipv6_finalize_raw(buf, IPPROTO_ICMPV6);
if (net_send_data(buf) < 0) {
TC_ERROR("Cannot send NA buffer\n");
return false;
}
return true;
}
static bool net_test_send_ns(struct net_if *iface,
struct in6_addr *addr)
{
int ret;
ret = net_ipv6_send_ns(iface,
NULL,
addr,
&my_addr,
&my_addr,
false);
if (ret < 0) {
TC_ERROR("Cannot send NS (%d)\n", ret);
return false;
}
return true;
}
static bool net_test_nbr_lookup_ok(struct net_if *iface,
struct in6_addr *addr)
{
struct net_nbr *nbr;
nbr = net_ipv6_nbr_lookup(iface, addr);
if (!nbr) {
TC_ERROR("Neighbor %s not found in cache\n",
net_sprint_ipv6_addr(addr));
return false;
}
return true;
}
static bool populate_nbr_cache(void)
{
msg_sending = NET_ICMPV6_NS;
feed_data = true;
data_failure = false;
recipient = my_iface;
if (!net_test_send_ns(peer_iface, &peer_addr)) {
return false;
}
/* The NS message sending causes some NA to be sent. Those
* NAs will be discarded because there is no suitable interface
* with such destination address. This is quite normal and those
* extra NA messages can be safely discarded.
*/
/* The next NA will cause the ll address to be added to the
* neighbor cache.
*/
if (!net_test_send_na(peer_iface,
&peer_addr,
&net_route_data_peer.ll_addr,
&my_addr)) {
return false;
}
nano_sem_take(&wait_data, WAIT_TIME);
feed_data = false;
if (data_failure) {
data_failure = false;
return false;
}
data_failure = false;
if (!net_test_nbr_lookup_ok(my_iface, &peer_addr)) {
return false;
}
return true;
}
static bool route_add(void)
{
entry = net_route_add(my_iface,
&dest_addr, 128,
&peer_addr);
if (!entry) {
TC_ERROR("Route add failed\n");
return false;
}
return true;
}
static bool route_update(void)
{
struct net_route_entry *update_entry;
update_entry = net_route_add(my_iface,
&dest_addr, 128,
&peer_addr);
if (update_entry != entry) {
TC_ERROR("Route add again failed\n");
return false;
}
return true;
}
static bool route_del(void)
{
int ret;
ret = net_route_del(entry);
if (ret < 0) {
TC_ERROR("Route del failed %d\n", ret);
return false;
}
return true;
}
static bool route_del_again(void)
{
int ret;
ret = net_route_del(entry);
if (ret >= 0) {
TC_ERROR("Route del again failed %d\n", ret);
return false;
}
return true;
}
static bool route_get_nexthop(void)
{
struct in6_addr *nexthop;
nexthop = net_route_get_nexthop(entry);
if (!nexthop) {
TC_ERROR("Route get nexthop failed\n");
return false;
}
if (!net_ipv6_addr_cmp(nexthop, &peer_addr)) {
TC_ERROR("Route nexthop does not match\n");
return false;
}
return true;
}
static bool route_lookup_ok(void)
{
struct net_route_entry *entry;
entry = net_route_lookup(my_iface, &dest_addr);
if (!entry) {
TC_ERROR("Route lookup failed\n");
return false;
}
return true;
}
static bool route_lookup_fail(void)
{
struct net_route_entry *entry;
entry = net_route_lookup(my_iface, &peer_addr);
if (entry) {
TC_ERROR("Route lookup failed for peer address\n");
return false;
}
return true;
}
static bool route_del_nexthop(void)
{
struct in6_addr *nexthop = &peer_addr;
int ret;
ret = net_route_del_by_nexthop(my_iface, nexthop);
if (ret <= 0) {
TC_ERROR("Route del nexthop failed (%d)\n", ret);
return false;
}
return true;
}
static bool route_del_nexthop_again(void)
{
struct in6_addr *nexthop = &peer_addr;
int ret;
ret = net_route_del_by_nexthop(my_iface, nexthop);
if (ret >= 0) {
TC_ERROR("Route del again nexthop failed (%d)\n", ret);
return false;
}
return true;
}
static bool route_add_many(void)
{
int i;
for (i = 0; i < max_routes; i++) {
DBG("Adding route %d addr %s\n", i + 1,
net_sprint_ipv6_addr(&dest_addresses[i]));
test_routes[i] = net_route_add(my_iface,
&dest_addresses[i], 128,
&peer_addr);
if (!test_routes[i]) {
TC_ERROR("[%d] Route add failed\n", i);
return false;
}
}
return true;
}
static bool route_del_many(void)
{
int i, ret;
for (i = 0; i < max_routes; i++) {
DBG("Deleting route %d addr %s\n", i + 1,
net_sprint_ipv6_addr(&dest_addresses[i]));
ret = net_route_del(test_routes[i]);
if (ret) {
TC_ERROR("[%d] Route del failed (%d)\n", i, ret);
return false;
}
}
return true;
}
static const struct {
const char *name;
bool (*func)(void);
} tests[] = {
{ "test init", test_init },
{ "test ctx create", net_ctx_create },
{ "Populate neighbor cache", populate_nbr_cache },
{ "Add route", route_add },
{ "Add update", route_update },
{ "Get nexthop", route_get_nexthop },
{ "Lookup route ok", route_lookup_ok },
{ "Lookup route fail", route_lookup_fail },
{ "Del route", route_del },
{ "Add route again", route_add },
{ "Del route by nexthop", route_del_nexthop },
{ "Del route again", route_del_again },
{ "Del route by nexthop again", route_del_nexthop_again },
/* Add the neighbors back, otherwise the rest of the tests will fail */
{ "Populate neighbor cache again", populate_nbr_cache },
{ "Add many routes", route_add_many },
{ "Del many routes", route_del_many },
};
void main(void)
{
int count, pass;
for (count = 0, pass = 0; count < ARRAY_SIZE(tests); count++) {
TC_START(tests[count].name);
test_failed = false;
if (!tests[count].func() || test_failed) {
TC_END(FAIL, "failed\n");
} else {
TC_END(PASS, "passed\n");
pass++;
}
}
TC_END_REPORT(((pass != ARRAY_SIZE(tests)) ? TC_FAIL : TC_PASS));
}

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tests/net/route/testcase.ini Normal file
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[test]
tags = net-route
arch_whitelist = x86
platform_whitelist = qemu_x86