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net: tests: Unit tests for UDP handler

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Simple UDP protocol testing.

Change-Id: I3ee37ff93127245a80fdf31856a95d9efc403862
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2016-06-14 10:03:38 +03:00
commit 87fd856041
6 changed files with 607 additions and 0 deletions
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6
tests/net/udp/Makefile Normal file
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BOARD ?= qemu_x86
MDEF_FILE = prj.mdef
KERNEL_TYPE ?= nano
CONF_FILE = prj_$(ARCH).conf
include $(ZEPHYR_BASE)/Makefile.inc

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

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tests/net/udp/prj_x86.conf Normal file
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CONFIG_NETWORKING=y
CONFIG_NET_L2_DUMMY=y
CONFIG_NET_UDP=y
CONFIG_NET_MAX_CONN=64
CONFIG_NET_CONN_CACHE=y
CONFIG_NET_IPV6=y
CONFIG_NET_IPV4=y
CONFIG_NET_YAIP=y
CONFIG_NET_BUF=y
CONFIG_MAIN_STACK_SIZE=2048
CONFIG_NET_NBUF_RX_COUNT=5
CONFIG_NET_NBUF_TX_COUNT=5
CONFIG_NET_NBUF_DATA_COUNT=10
CONFIG_NET_LOG=y
CONFIG_SYS_LOG_SHOW_COLOR=y
CONFIG_TEST_RANDOM_GENERATOR=y
CONFIG_NET_IPV6_NO_ND=y
CONFIG_NET_IFACE_UNICAST_IPV6_ADDR_COUNT=2
CONFIG_NET_IFACE_UNICAST_IPV4_ADDR_COUNT=2
CONFIG_NETWORK_IP_STACK_DEBUG_CORE=y
CONFIG_NETWORK_IP_STACK_DEBUG_UDP=y
CONFIG_NETWORK_IP_STACK_DEBUG_CONN=y
#CONFIG_NETWORK_IP_STACK_DEBUG_NET_BUF=y
#CONFIG_NETWORK_IP_STACK_DEBUG_IF=y
#CONFIG_NETWORK_IP_STACK_DEBUG_L2=y

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tests/net/udp/src/Makefile Normal file
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obj-y = main.o
ccflags-y += -I${srctree}/net/yaip

563
tests/net/udp/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 <zephyr.h>
#include <sections.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <device.h>
#include <init.h>
#include <misc/printk.h>
#include <net/buf.h>
#include <net/net_core.h>
#include <net/nbuf.h>
#include <net/net_ip.h>
#include <net/ethernet.h>
#define NET_DEBUG 1
#include "udp.h"
#include "net_private.h"
static bool fail = true;
static struct nano_sem recv_lock;
struct net_udp_context {
uint8_t mac_addr[sizeof(struct net_eth_addr)];
struct net_linkaddr ll_addr;
};
int net_udp_dev_init(struct device *dev)
{
struct net_udp_context *net_udp_context = dev->driver_data;
net_udp_context = net_udp_context;
return 0;
}
static uint8_t *net_udp_get_mac(struct device *dev)
{
struct net_udp_context *context = dev->driver_data;
if (context->mac_addr[0] == 0x00) {
/* 10-00-00-00-00 to 10-00-00-00-FF Documentation RFC7042 */
context->mac_addr[0] = 0x10;
context->mac_addr[1] = 0x00;
context->mac_addr[2] = 0x00;
context->mac_addr[3] = 0x00;
context->mac_addr[4] = 0x00;
context->mac_addr[5] = sys_rand32_get();
}
return context->mac_addr;
}
static void net_udp_iface_init(struct net_if *iface)
{
uint8_t *mac = net_udp_get_mac(net_if_get_device(iface));
net_if_set_link_addr(iface, mac, 8);
}
static int send_status = -EINVAL;
static int tester_send(struct net_if *iface, struct net_buf *buf)
{
if (!buf->frags) {
printk("No data to send!\n");
return -ENODATA;
}
printk("Data was sent successfully\n");
net_nbuf_unref(buf);
send_status = 0;
return 0;
}
static inline struct in_addr *if_get_addr(struct net_if *iface)
{
int i;
for (i = 0; i < NET_IF_MAX_IPV4_ADDR; i++) {
if (iface->ipv4.unicast[i].is_used &&
iface->ipv4.unicast[i].address.family == AF_INET &&
iface->ipv4.unicast[i].addr_state == NET_ADDR_PREFERRED) {
return &iface->ipv4.unicast[i].address.in_addr;
}
}
return NULL;
}
struct net_udp_context net_udp_context_data;
static struct net_if_api net_udp_if_api = {
.init = net_udp_iface_init,
.send = tester_send,
};
#define _ETH_L2_LAYER DUMMY_L2
NET_DEVICE_INIT(net_udp_test, "net_udp_test",
net_udp_dev_init, &net_udp_context_data, NULL,
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&net_udp_if_api, _ETH_L2_LAYER, 127);
struct ud {
const struct net_addr *remote_addr;
const struct net_addr *local_addr;
uint16_t remote_port;
uint16_t local_port;
char *test;
void *handle;
};
static struct ud *returned_ud;
static enum net_verdict test_ok(struct net_buf *buf, void *user_data)
{
struct ud *ud = (struct ud *)user_data;
nano_sem_give(&recv_lock);
if (!ud) {
fail = true;
printk("Test %s failed.", ud->test);
return NET_DROP;
}
fail = false;
returned_ud = user_data;
net_nbuf_unref(buf);
return NET_OK;
}
static enum net_verdict test_fail(struct net_buf *buf, void *user_data)
{
/* This function should never be called as there should not
* be a matching UDP connection.
*/
fail = true;
return NET_DROP;
}
static void setup_ipv6_udp(struct net_buf *buf,
struct in6_addr *remote_addr,
struct in6_addr *local_addr,
uint16_t remote_port,
uint16_t local_port)
{
NET_IPV6_BUF(buf)->vtc = 0x60;
NET_IPV6_BUF(buf)->tcflow = 0;
NET_IPV6_BUF(buf)->flow = 0;
NET_IPV6_BUF(buf)->len[0] = 0;
NET_IPV6_BUF(buf)->len[1] = NET_UDPH_LEN;
NET_IPV6_BUF(buf)->nexthdr = IPPROTO_UDP;
NET_IPV6_BUF(buf)->hop_limit = 255;
net_ipaddr_copy(&NET_IPV6_BUF(buf)->src, remote_addr);
net_ipaddr_copy(&NET_IPV6_BUF(buf)->dst, local_addr);
net_nbuf_ip_hdr_len(buf) = sizeof(struct net_ipv6_hdr);
NET_UDP_BUF(buf)->src_port = htons(remote_port);
NET_UDP_BUF(buf)->dst_port = htons(local_port);
net_nbuf_ext_len(buf) = 0;
net_buf_add(buf->frags, net_nbuf_ip_hdr_len(buf) +
sizeof(struct net_udp_hdr));
}
static void setup_ipv4_udp(struct net_buf *buf,
struct in_addr *remote_addr,
struct in_addr *local_addr,
uint16_t remote_port,
uint16_t local_port)
{
NET_IPV4_BUF(buf)->vhl = 0x45;
NET_IPV4_BUF(buf)->tos = 0;
NET_IPV4_BUF(buf)->len[0] = 0;
NET_IPV4_BUF(buf)->len[1] = NET_UDPH_LEN +
sizeof(struct net_ipv4_hdr);
NET_IPV4_BUF(buf)->proto = IPPROTO_UDP;
net_ipaddr_copy(&NET_IPV4_BUF(buf)->src, remote_addr);
net_ipaddr_copy(&NET_IPV4_BUF(buf)->dst, local_addr);
net_nbuf_ip_hdr_len(buf) = sizeof(struct net_ipv4_hdr);
NET_UDP_BUF(buf)->src_port = htons(remote_port);
NET_UDP_BUF(buf)->dst_port = htons(local_port);
net_nbuf_ext_len(buf) = 0;
net_buf_add(buf->frags, net_nbuf_ip_hdr_len(buf) +
sizeof(struct net_udp_hdr));
}
#define TIMEOUT (sys_clock_ticks_per_sec / 6)
static bool send_ipv6_udp_msg(struct net_if *iface,
struct in6_addr *src,
struct in6_addr *dst,
uint16_t src_port,
uint16_t dst_port,
struct ud *ud,
bool expect_failure)
{
struct net_buf *buf;
struct net_buf *frag;
int ret;
buf = net_nbuf_get_reserve_tx(0);
frag = net_nbuf_get_reserve_data(0);
net_buf_frag_add(buf, frag);
net_nbuf_iface(buf) = iface;
net_nbuf_ll_reserve(buf) = net_buf_headroom(frag);
setup_ipv6_udp(buf, src, dst, src_port, dst_port);
ret = net_recv_data(iface, buf);
if (ret < 0) {
printk("Cannot recv buf %p, ret %d\n", buf, ret);
return false;
}
if (!nano_sem_take(&recv_lock, TIMEOUT)) {
printk("Timeout, packet not received\n");
if (expect_failure) {
return false;
} else {
return true;
}
}
/* Check that the returned user data is the same as what was given
* as a parameter.
*/
if (ud != returned_ud && !expect_failure) {
printk("IPv6 wrong user data %p returned, expected %p\n",
returned_ud, ud);
return false;
}
return !fail;
}
static bool send_ipv4_udp_msg(struct net_if *iface,
struct in_addr *src,
struct in_addr *dst,
uint16_t src_port,
uint16_t dst_port,
struct ud *ud,
bool expect_failure)
{
struct net_buf *buf;
struct net_buf *frag;
int ret;
buf = net_nbuf_get_reserve_tx(0);
frag = net_nbuf_get_reserve_data(0);
net_buf_frag_add(buf, frag);
net_nbuf_iface(buf) = iface;
net_nbuf_ll_reserve(buf) = net_buf_headroom(frag);
setup_ipv4_udp(buf, src, dst, src_port, dst_port);
ret = net_recv_data(iface, buf);
if (ret < 0) {
printk("Cannot recv buf %p, ret %d\n", buf, ret);
return false;
}
if (!nano_sem_take(&recv_lock, TIMEOUT)) {
printk("Timeout, packet not received\n");
if (expect_failure) {
return false;
} else {
return true;
}
}
/* Check that the returned user data is the same as what was given
* as a parameter.
*/
if (ud != returned_ud && !expect_failure) {
printk("IPv4 wrong user data %p returned, expected %p\n",
returned_ud, ud);
return false;
}
return !fail;
}
void main_fiber(void)
{
void *handlers[CONFIG_NET_MAX_CONN];
struct net_if *iface = net_if_get_default();;
struct net_if_addr *ifaddr;
struct ud *ud;
int ret, i = 0;
bool st;
struct net_addr any_addr6;
const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
struct net_addr my_addr6;
struct in6_addr in6addr_my = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0x1 } } };
struct net_addr peer_addr6;
struct in6_addr in6addr_peer = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
0, 0, 0, 0x4e, 0x11, 0, 0, 0x2 } } };
struct net_addr any_addr4;
const struct in_addr in4addr_any = { { { 0 } } };
struct net_addr my_addr4;
struct in_addr in4addr_my = { { { 192, 0, 2, 1 } } };
struct net_addr peer_addr4;
struct in_addr in4addr_peer = { { { 192, 0, 2, 9 } } };
net_ipaddr_copy(&any_addr6.in6_addr, &in6addr_any);
any_addr6.family = AF_INET6;
net_ipaddr_copy(&my_addr6.in6_addr, &in6addr_my);
my_addr6.family = AF_INET6;
net_ipaddr_copy(&peer_addr6.in6_addr, &in6addr_peer);
peer_addr6.family = AF_INET6;
net_ipaddr_copy(&any_addr4.in_addr, &in4addr_any);
any_addr4.family = AF_INET;
net_ipaddr_copy(&my_addr4.in_addr, &in4addr_my);
my_addr4.family = AF_INET;
net_ipaddr_copy(&peer_addr4.in_addr, &in4addr_peer);
peer_addr4.family = AF_INET;
nano_sem_init(&recv_lock);
ifaddr = net_if_ipv6_addr_add(iface, &in6addr_my, NET_ADDR_MANUAL, 0);
if (!ifaddr) {
printk("Cannot add %s to interface %p\n",
net_sprint_ipv6_addr(&in6addr_my));
return;
}
ifaddr = net_if_ipv4_addr_add(iface, &in4addr_my, NET_ADDR_MANUAL, 0);
if (!ifaddr) {
printk("Cannot add %s to interface %p\n",
net_sprint_ipv4_addr(&in4addr_my));
return;
}
#define REGISTER(raddr, laddr, rport, lport) \
({ \
static struct ud user_data; \
\
user_data.remote_addr = raddr; \
user_data.local_addr = laddr; \
user_data.remote_port = rport; \
user_data.local_port = lport; \
user_data.test = #raddr"-"#laddr"-"#rport"-"#lport; \
\
ret = net_udp_register(raddr, laddr, rport, lport, \
test_ok, &user_data, \
&handlers[i]); \
if (ret) { \
printk("UDP register %s failed (%d)\n", \
user_data.test, ret); \
return; \
} \
user_data.handle = handlers[i++]; \
&user_data; \
})
#define REGISTER_FAIL(raddr, laddr, rport, lport) \
ret = net_udp_register(raddr, laddr, rport, lport, test_fail, \
INT_TO_POINTER(0), NULL); \
if (!ret) { \
printk("UDP register invalid match %s failed\n", \
#raddr"-"#laddr"-"#rport"-"#lport); \
return; \
}
#define UNREGISTER(ud) \
ret = net_udp_unregister(ud->handle); \
if (ret) { \
printk("UDP unregister %p failed (%d)\n", ud->handle, \
ret); \
return; \
}
#define TEST_IPV6_OK(ud, raddr, laddr, rport, lport) \
st = send_ipv6_udp_msg(iface, raddr, laddr, rport, lport, ud, \
false); \
if (!st) { \
printk("%d: UDP test \"%s\" fail\n", __LINE__, \
ud->test); \
return; \
}
#define TEST_IPV4_OK(ud, raddr, laddr, rport, lport) \
st = send_ipv4_udp_msg(iface, raddr, laddr, rport, lport, ud, \
false); \
if (!st) { \
printk("%d: UDP test \"%s\" fail\n", __LINE__, \
ud->test); \
return; \
}
#define TEST_IPV6_FAIL(ud, raddr, laddr, rport, lport) \
st = send_ipv6_udp_msg(iface, raddr, laddr, rport, lport, ud, \
true); \
if (st) { \
printk("%d: UDP neg test \"%s\" fail\n", __LINE__, \
ud->test); \
return; \
}
#define TEST_IPV4_FAIL(ud, raddr, laddr, rport, lport) \
st = send_ipv4_udp_msg(iface, raddr, laddr, rport, lport, ud, \
true); \
if (st) { \
printk("%d: UDP neg test \"%s\" fail\n", __LINE__, \
ud->test); \
return; \
}
ud = REGISTER(&any_addr6, &any_addr6, 1234, 4242);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 4242);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 4242);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 1234, 61400);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 1234, 61400);
UNREGISTER(ud);
ud = REGISTER(&any_addr4, &any_addr4, 1234, 4242);
TEST_IPV4_OK(ud, &in4addr_peer, &in4addr_my, 1234, 4242);
TEST_IPV4_OK(ud, &in4addr_peer, &in4addr_my, 1234, 4242);
TEST_IPV4_FAIL(ud, &in4addr_peer, &in4addr_my, 1234, 4325);
TEST_IPV4_FAIL(ud, &in4addr_peer, &in4addr_my, 1234, 4325);
UNREGISTER(ud);
ud = REGISTER(&any_addr6, NULL, 1234, 4242);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 4242);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 4242);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 1234, 61400);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 1234, 61400);
UNREGISTER(ud);
ud = REGISTER(NULL, &any_addr6, 1234, 4242);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 4242);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 4242);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 1234, 61400);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 1234, 61400);
UNREGISTER(ud);
ud = REGISTER(&peer_addr6, &my_addr6, 1234, 4242);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 4242);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 1234, 4243);
ud = REGISTER(&peer_addr4, &my_addr4, 1234, 4242);
TEST_IPV4_OK(ud, &in4addr_peer, &in4addr_my, 1234, 4242);
TEST_IPV4_FAIL(ud, &in4addr_peer, &in4addr_my, 1234, 4243);
ud = REGISTER(NULL, NULL, 1234, 42423);
TEST_IPV4_OK(ud, &in4addr_peer, &in4addr_my, 1234, 42423);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 42423);
ud = REGISTER(NULL, NULL, 1234, 0);
TEST_IPV4_OK(ud, &in4addr_peer, &in4addr_my, 1234, 42422);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 42422);
TEST_IPV4_OK(ud, &in4addr_peer, &in4addr_my, 1234, 42422);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 1234, 42422);
TEST_IPV4_FAIL(ud, &in4addr_peer, &in4addr_my, 12345, 42421);
TEST_IPV6_FAIL(ud, &in6addr_peer, &in6addr_my, 12345, 42421);
ud = REGISTER(NULL, NULL, 0, 0);
TEST_IPV4_OK(ud, &in4addr_peer, &in4addr_my, 12345, 42421);
TEST_IPV6_OK(ud, &in6addr_peer, &in6addr_my, 12345, 42421);
/* Remote addr same as local addr, these two will never match */
REGISTER(&my_addr6, NULL, 1234, 4242);
REGISTER(&my_addr4, NULL, 1234, 4242);
/* IPv4 remote addr and IPv6 remote addr, impossible combination */
REGISTER_FAIL(&my_addr4, &my_addr6, 1234, 4242);
if (fail) {
printk("Tests failed\n");
return;
}
i--;
while (i) {
ret = net_udp_unregister(handlers[i]);
if (ret < 0 && ret != -ENOENT) {
printk("Cannot unregister udp %d\n", i);
return;
}
i--;
}
if (!(net_udp_unregister(NULL) < 0)) {
printk("Unregister udp failed\n");
return;
}
printk("Network UDP checks passed\n");
}
#if defined(CONFIG_NANOKERNEL)
#define STACKSIZE 2000
char __noinit __stack fiberStack[STACKSIZE];
#endif
void main(void)
{
#if defined(CONFIG_MICROKERNEL)
main_fiber();
#else
task_fiber_start(&fiberStack[0], STACKSIZE,
(nano_fiber_entry_t)main_fiber, 0, 0, 7, 0);
#endif
}

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tests/net/udp/testcase.ini Normal file
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[test]
tags = net-udp
build_only = true
arch_whitelist = x86
# Doesn't work for ia32_pci
filter = CONFIG_SOC : "ia32"