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net: tests: Add fragmentation unit tests for 802.15.4

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Change-Id: I5722f86c00c76921e94f6f2a8e9add8960498107
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
This commit is contained in:
Ravi kumar Veeramally 2016-07-08 13:34:51 +03:00 • committed by Jukka Rissanen
commit ae1ce83dd1
6 changed files with 600 additions and 0 deletions
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6
tests/net/fragment/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/fragment/prj.mdef Normal file
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% Application : Network test
% TASK NAME PRIO ENTRY STACK GROUPS
% ===================================================
TASK MAIN 7 mainloop 2048 [EXE]

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tests/net/fragment/prj_x86.conf Normal file
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CONFIG_NETWORKING=y
CONFIG_NET_YAIP=y
CONFIG_NET_L2_DUMMY=y
CONFIG_NET_IPV6=y
CONFIG_NET_IPV6_ND=n
CONFIG_NET_IPV6_DAD=n
CONFIG_NET_6LO=y
CONFIG_NET_L2_IEEE802154=y
CONFIG_NET_BUF=y
CONFIG_TEST_RANDOM_GENERATOR=y
CONFIG_MAIN_STACK_SIZE=5048
CONFIG_NET_NBUF_RX_COUNT=2
CONFIG_NET_NBUF_TX_COUNT=2
CONFIG_NET_NBUF_DATA_COUNT=50
CONFIG_NET_LOG=y
CONFIG_NETWORK_IP_STACK_DEBUG_FULL=y
CONFIG_SYS_LOG_SHOW_COLOR=y
CONFIG_NETWORK_IP_STACK_DEBUG_IF=y
CONFIG_NETWORK_IP_STACK_DEBUG_CORE=y
CONFIG_NET_6LO_DEBUG=n
CONFIG_NET_L2_IEEE802154_FRAGMENT_DEBUG=y
CONFIG_NETWORK_IP_STACK_DEBUG_NET_BUF=n
CONFIG_NET_BUF_DEBUG=n

4
tests/net/fragment/src/Makefile Normal file
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obj-y = main.o
ccflags-y += -I${ZEPHYR_BASE}/net/yaip
ccflags-y += -I${ZEPHYR_BASE}/net/yaip/l2/ieee802154
ccflags-y += -I${ZEPHYR_BASE}/tests/include

550
tests/net/fragment/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/net_core.h>
#include <net/nbuf.h>
#include <net/net_ip.h>
#include <tc_util.h>
#include "6lo.h"
#include "fragment.h"
#define NET_DEBUG 1
#include "net_private.h"
#define DEBUG 0
/**
* IPv6 Source and Destination address
* Example addresses are based on SAC (Source Adddress Compression),
* SAM (Source Address Mode), DAC (Destination Address Compression),
* DAM (Destination Address Mode) and also if the destination address
* is Multicast address.
*/
#define src_sac1_sam00 \
{ { { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }
#define src_sam00 \
{ { { 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }
#define src_sam01 \
{ { { 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa } } }
#define src_sam10 \
{ { { 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0xff, 0xfe, 0x00, 0x00, 0xbb } } }
#define dst_m1_dam00 \
{ { { 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66 } } }
#define dst_m1_dam01 \
{ { { 0xff, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 } } }
#define dst_m1_dam10 \
{ { { 0xff, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x22, 0x33 } } }
#define dst_m1_dam11 \
{ { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11 } } }
#define dst_dam00 \
{ { { 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }
#define dst_dam01 \
{ { { 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa } } }
#define dst_dam10 \
{ { { 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0xff, 0xfe, 0x00, 0x00, 0xbb } } }
/* UDP Ports */
/* 4 bit compressible udp ports */
#define udp_src_port_4bit 0xf0b1
#define udp_dst_port_4bit 0xf0b2
/* 8 bit compressible udp ports */
#define udp_src_port_8bit 0xf111
#define udp_dst_port_8bit_y 0xf022 /* compressible */
#define udp_src_port_8bit_y 0xf011 /* compressible */
#define udp_dst_port_8bit 0xf122
/* uncompressible ports */
#define udp_src_port_16bit 0xff11
#define udp_dst_port_16bit 0xff22
static const char user_data[] =
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789"
"0123456789012345678901234567890123456789";
struct net_fragment_data {
struct net_ipv6_hdr ipv6;
struct net_udp_hdr udp;
int len;
bool iphc;
} __packed;
int net_fragment_dev_init(struct device *dev)
{
struct net_fragment_context *net_fragment_context = dev->driver_data;
net_fragment_context = net_fragment_context;
return 0;
}
static void net_fragment_iface_init(struct net_if *iface)
{
uint8_t mac[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xbb};
net_if_set_link_addr(iface, mac, 8);
}
static int tester_send(struct net_if *iface, struct net_buf *buf)
{
net_nbuf_unref(buf);
return NET_OK;
}
static struct net_if_api net_fragment_if_api = {
.init = net_fragment_iface_init,
.send = tester_send,
};
NET_DEVICE_INIT(net_fragment_test, "net_fragment_test",
net_fragment_dev_init, NULL, NULL,
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&net_fragment_if_api, DUMMY_L2,
NET_L2_GET_CTX_TYPE(DUMMY_L2), 127);
static bool compare_data(struct net_buf *buf, struct net_fragment_data *data)
{
struct net_buf *frag;
uint8_t bytes, pos, compare, offset = 0;
int remaining = data->len;
if (net_buf_frags_len(buf->frags) != (NET_IPV6UDPH_LEN + remaining)) {
printk("mismatch lengths, expected %d received %d\n",
NET_IPV6UDPH_LEN + remaining,
net_buf_frags_len(buf->frags));
return false;
}
frag = buf->frags;
if (memcmp(frag->data, (uint8_t *)data, NET_IPV6UDPH_LEN)) {
printk("mismatch headers\n");
return false;
}
pos = 0;
offset = NET_IPV6UDPH_LEN;
while (remaining > 0 && frag) {
bytes = frag->len - offset;
compare = remaining > bytes ? bytes : remaining;
if (memcmp(frag->data + offset, user_data + pos, compare)) {
printk("data mismatch\n");
return false;
}
pos += compare;
remaining -= compare;
frag = frag->frags;
offset = 0;
}
return true;
}
static struct net_buf *create_buf(struct net_fragment_data *data)
{
struct net_buf *buf, *frag;
uint8_t bytes, pos;
uint16_t len;
int remaining;
buf = net_nbuf_get_reserve_tx(0);
if (!buf) {
return NULL;
}
net_nbuf_set_iface(buf, net_if_get_default());
net_nbuf_set_ip_hdr_len(buf, NET_IPV6H_LEN);
frag = net_nbuf_get_reserve_data(0);
if (!frag) {
net_nbuf_unref(buf);
return NULL;
}
memcpy(frag->data, (uint8_t *) data, NET_IPV6UDPH_LEN);
net_buf_add(frag, NET_IPV6UDPH_LEN);
pos = 0;
remaining = data->len;
len = NET_UDPH_LEN + remaining;
/* length is not set in net_fragment_data data pointer, calculate and set
* in ipv6, udp and in data pointer too (it's required in comparison) */
frag->data[4] = len >> 8;
frag->data[5] = (uint8_t) len;
frag->data[44] = len >> 8;
frag->data[45] = (uint8_t) len;
data->ipv6.len[0] = len >> 8;
data->ipv6.len[1] = (uint8_t) len;
data->udp.len = htons(len);
while (remaining > 0) {
uint8_t copy;
bytes = net_buf_tailroom(frag);
copy = remaining > bytes ? bytes : remaining;
memcpy(net_buf_add(frag, copy), &user_data[pos], copy);
pos += bytes;
remaining -= bytes;
if (net_buf_tailroom(frag) - (bytes - copy)) {
net_nbuf_unref(buf);
return NULL;
}
net_buf_frag_add(buf, frag);
if (remaining > 0) {
frag = net_nbuf_get_reserve_data(0);
}
}
return buf;
}
static struct net_fragment_data test_data_1 = {
.ipv6.vtc = 0x60,
.ipv6.tcflow = 0x00,
.ipv6.flow = 0x00,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sam00,
.ipv6.dst = dst_dam00,
.udp.src_port = htons(udp_src_port_4bit),
.udp.dst_port = htons(udp_dst_port_4bit),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 70,
.iphc = true
};
static struct net_fragment_data test_data_2 = {
.ipv6.vtc = 0x60,
.ipv6.tcflow = 0x20,
.ipv6.flow = 0x3412,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sam01,
.ipv6.dst = dst_dam01,
.udp.src_port = htons(udp_src_port_8bit_y),
.udp.dst_port = htons(udp_dst_port_8bit),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 200,
.iphc = true
};
static struct net_fragment_data test_data_3 = {
.ipv6.vtc = 0x60,
.ipv6.tcflow = 0x21,
.ipv6.flow = 0x3412,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sam10,
.ipv6.dst = dst_dam10,
.udp.src_port = htons(udp_src_port_8bit),
.udp.dst_port = htons(udp_dst_port_8bit_y),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 300,
.iphc = true
};
static struct net_fragment_data test_data_4 = {
.ipv6.vtc = 0x61,
.ipv6.tcflow = 0x20,
.ipv6.flow = 0x00,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sac1_sam00,
.ipv6.dst = dst_m1_dam00,
.udp.src_port = htons(udp_src_port_16bit),
.udp.dst_port = htons(udp_dst_port_16bit),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 400,
.iphc = true
};
static struct net_fragment_data test_data_5 = {
.ipv6.vtc = 0x61,
.ipv6.tcflow = 0x23,
.ipv6.flow = 0x4567,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sam01,
.ipv6.dst = dst_m1_dam01,
.udp.src_port = htons(udp_src_port_16bit),
.udp.dst_port = htons(udp_dst_port_16bit),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 500,
.iphc = true
};
static struct net_fragment_data test_data_6 = {
.ipv6.vtc = 0x60,
.ipv6.tcflow = 0x0,
.ipv6.flow = 0x0,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sam10,
.ipv6.dst = dst_m1_dam10,
.udp.src_port = htons(udp_src_port_8bit),
.udp.dst_port = htons(udp_dst_port_8bit),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 900,
.iphc = true
};
static struct net_fragment_data test_data_7 = {
.ipv6.vtc = 0x61,
.ipv6.tcflow = 0x20,
.ipv6.flow = 0x00,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sac1_sam00,
.ipv6.dst = dst_m1_dam00,
.udp.src_port = htons(udp_src_port_16bit),
.udp.dst_port = htons(udp_dst_port_16bit),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 70,
.iphc = false
};
static struct net_fragment_data test_data_8 = {
.ipv6.vtc = 0x61,
.ipv6.tcflow = 0x20,
.ipv6.flow = 0x00,
.ipv6.len = { 0x00, 0x00 },
.ipv6.nexthdr = IPPROTO_UDP,
.ipv6.hop_limit = 0xff,
.ipv6.src = src_sac1_sam00,
.ipv6.dst = dst_m1_dam00,
.udp.src_port = htons(udp_src_port_16bit),
.udp.dst_port = htons(udp_dst_port_16bit),
.udp.len = 0x00,
.udp.chksum = 0x00,
.len = 800,
.iphc = false
};
static int test_fragment(struct net_fragment_data *data)
{
struct net_buf *buf, *frag, *dfrag, *rxbuf, *rbuf;
int result = TC_FAIL;
buf = create_buf(data);
if (!buf) {
TC_PRINT("%s: failed to create buffer\n", __func__);
goto end;
}
#if DEBUG > 0
printk("length before compression %d\n", net_buf_frags_len(buf->frags));
net_hexdump_frags("before-compression", buf);
#endif
if (!net_6lo_compress(buf, data->iphc,
ieee802154_fragment)) {
TC_PRINT("compression failed\n");
goto end;
}
#if DEBUG > 0
printk("length after compression and fragmentation %d\n",
net_buf_frags_len(buf->frags));
net_hexdump_frags("after-compression", buf);
#endif
frag = buf->frags;
while (frag) {
rxbuf = net_nbuf_get_reserve_rx(0);
if (!rxbuf) {
goto end;
}
dfrag = net_nbuf_get_reserve_data(0);
if (!dfrag) {
goto end;
}
memcpy(dfrag->data, frag->data, frag->len);
dfrag->len = frag->len;
net_buf_frag_add(rxbuf, dfrag);
switch (ieee802154_reassemble(rxbuf, &rbuf)) {
case NET_OK:
goto compare;
case NET_CONTINUE:
frag = frag->frags;
break;
case NET_DROP:
net_nbuf_unref(rxbuf);
goto end;
}
}
compare:
#if DEBUG > 0
printk("length after reassembly and uncompression %d\n",
net_buf_frags_len(rbuf->frags));
net_hexdump_frags("after-uncompression", rbuf);
#endif
if (compare_data(rbuf, data)) {
result = TC_PASS;
}
end:
net_nbuf_unref(buf);
net_nbuf_unref(rbuf);
return result;
}
/* tests names are based on traffic class, flow label, source address mode
* (sam), destination address mode (dam), based on udp source and destination
* ports compressible type.
*/
static const struct {
const char *name;
struct net_fragment_data *data;
} tests[] = {
{ "test_fragment_sam00_dam00", &test_data_1},
{ "test_fragment_sam01_dam01", &test_data_2},
{ "test_fragment_sam10_dam10", &test_data_3},
{ "test_fragment_sac1_sam00_m1_dam00", &test_data_4},
{ "test_fragment_sam01_m1_dam01", &test_data_5},
{ "test_fragment_sam10_m1_dam10", &test_data_6},
{ "test_fragment_ipv6_dispatch_small", &test_data_7},
{ "test_fragment_ipv6_dispatch_big", &test_data_8},
};
static void main_fiber(void)
{
int count, pass;
for (count = 0, pass = 0; count < ARRAY_SIZE(tests); count++) {
TC_START(tests[count].name);
if (test_fragment(tests[count].data)) {
TC_END(FAIL, "failed\n");
} else {
TC_END(PASS, "passed\n");
pass++;
}
}
TC_END_REPORT(((pass != ARRAY_SIZE(tests)) ? TC_FAIL : TC_PASS));
}
#if defined(CONFIG_NANOKERNEL)
#define STACKSIZE 8000
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/fragment/testcase.ini Normal file
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[test_micro]
tags = net-6lo
arch_whitelist = x86
kernel = micro
build_only = true
[test_nano]
tags = net-6lo
arch_whitelist = x86
kernel = nano
build_only = true