tests: add a test application for gnrc_ipv6_ext
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Yonezawa-T2
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43
tests/gnrc_ipv6_ext/Makefile
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43
tests/gnrc_ipv6_ext/Makefile
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# name of your application
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APPLICATION = gnrc_ipv6_ext
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# If no BOARD is found in the environment, use this default:
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BOARD ?= native
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# This has to be the absolute path to the RIOT base directory:
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RIOTBASE ?= $(CURDIR)/../..
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BOARD_INSUFFICIENT_MEMORY := airfy-beacon chronos msb-430 msb-430h nrf51dongle \
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nrf6310 nucleo-f103 nucleo-f334 pca10000 pca10005 spark-core \
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stm32f0discovery telosb weio wsn430-v1_3b wsn430-v1_4 \
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yunjia-nrf51822 z1
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# Include packages that pull up and auto-init the link layer.
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# NOTE: 6LoWPAN will be included if IEEE802.15.4 devices are present
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USEMODULE += gnrc_netif_default
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USEMODULE += auto_init_gnrc_netif
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# Specify the mandatory networking modules for IPv6
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USEMODULE += gnrc_ipv6_router_default
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# IPv6 extension headers
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USEMODULE += gnrc_ipv6_ext
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USEMODULE += gnrc_rpl_srh
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# Add also the shell, some shell commands
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USEMODULE += shell
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USEMODULE += shell_commands
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USEMODULE += ps
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# Comment this out to disable code in RIOT that does safety checking
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# which is not needed in a production environment but helps in the
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# development process:
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CFLAGS += -DDEVELHELP
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# Change this to 0 show compiler invocation lines by default:
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QUIET ?= 1
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include $(RIOTBASE)/Makefile.include
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# This requires ENABLE_DEBUG in gnrc_ipv6.c to be 1
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test:
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# `testrunner` calls `make term` recursively, results in duplicated `TERMFLAGS`.
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# So clears `TERMFLAGS` before run.
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TERMFLAGS= tests/01-run.py
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43
tests/gnrc_ipv6_ext/README.md
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43
tests/gnrc_ipv6_ext/README.md
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# `gnrc_ipv6_ext` test
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This test sends a packet to itself with extension headers. This is based on gnrc_networking example.
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Enable debug output of `gnrc_ipv6.c` before run. When the test is run, it should show the following debug output:
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```
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ipv6: Received (src = fd01::1, dst = fd01::2, next header = 0, length = 40)
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ipv6: forward nh = 0 to other threads
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ipv6: unable to forward packet as no one is interested in it
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ipv6: handle extension header (nh = 0)
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ipv6: forward nh = 43 to other threads
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ipv6: unable to forward packet as no one is interested in it
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ipv6: handle extension header (nh = 43)
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ipv6: waiting for incoming message.
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ipv6: GNRC_NETAPI_MSG_TYPE_RCV received
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ipv6: Received (src = fd01::1, dst = fd01::3, next header = 0, length = 40)
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ipv6: forward nh = 0 to other threads
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ipv6: unable to forward packet as no one is interested in it
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ipv6: handle extension header (nh = 0)
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ipv6: forward nh = 43 to other threads
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ipv6: unable to forward packet as no one is interested in it
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ipv6: handle extension header (nh = 43)
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ipv6: waiting for incoming message.
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ipv6: GNRC_NETAPI_MSG_TYPE_RCV received
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ipv6: Received (src = fd01::1, dst = fd01::2, next header = 0, length = 40)
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ipv6: forward nh = 0 to other threads
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ipv6: unable to forward packet as no one is interested in it
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ipv6: handle extension header (nh = 0)
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ipv6: forward nh = 43 to other threads
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ipv6: unable to forward packet as no one is interested in it
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ipv6: handle extension header (nh = 43)
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ipv6: forward nh = 17 to other threads
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ipv6: Send receive command for 0x1060b8 to 5
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ipv6: waiting for incoming message.
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pkt->users: 0
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```
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It configures the network interface with addresses fd01::02 and fd01::03. Then it sends a packet to fd01::02 with a routing extension header containing addresses fd01::03 and fd01::02. So the packet should be forwarded from fd01::02 to fd01::03, then to fd01::02 again.
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The packet has a Hop-by-Hop extension header that should be ignored.
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The test also asserts that the packet is released.
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125
tests/gnrc_ipv6_ext/main.c
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tests/gnrc_ipv6_ext/main.c
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/*
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* Copyright (C) 2015 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup tests
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* @{
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*
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* @file
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* @brief Tests extension header handling of gnrc stack.
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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* @author Takuo Yonezawa <Yonezawa-T2@mail.dnp.co.jp>
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*
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* @}
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*/
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#include <stdio.h>
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#include "shell.h"
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#include "msg.h"
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#include "net/ipv6/addr.h"
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#include "net/gnrc/ipv6/netif.h"
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#include "net/gnrc/pkt.h"
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#include "net/gnrc/pktbuf.h"
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#include "net/gnrc/netreg.h"
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#include "net/gnrc/netapi.h"
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#include "net/gnrc/netif.h"
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#define MAIN_QUEUE_SIZE (8)
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static msg_t _main_msg_queue[MAIN_QUEUE_SIZE];
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static void _send_packet(void) {
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kernel_pid_t ifs[GNRC_NETIF_NUMOF];
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ipv6_addr_t addr = IPV6_ADDR_UNSPECIFIED;
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gnrc_netif_get(ifs);
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addr.u8[0] = 0xfd;
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addr.u8[1] = 0x01;
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addr.u8[15] = 0x02;
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/* fd01::02 */
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gnrc_ipv6_netif_add_addr(ifs[0], &addr, 64, GNRC_IPV6_NETIF_ADDR_FLAGS_UNICAST);
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addr.u8[15] = 0x03;
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/* fd01::03 */
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gnrc_ipv6_netif_add_addr(ifs[0], &addr, 64, GNRC_IPV6_NETIF_ADDR_FLAGS_UNICAST);
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uint8_t data[] = {
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/* IPv6 Header */
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0x60, 0x00, 0x00, 0x00, /* version, traffic class, flow label */
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0x00, 0x28, /* payload length: 40 */
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0x00, /* next header: Hop-by-Hop Option */
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0x10, /* hop limit: 16 */
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/* source address: fd01::1 */
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0xfd, 0x01, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x01,
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/* destination address: fd01::2 */
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0xfd, 0x01, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x02,
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/* Hop-by-Hop Options Header */
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/* https://tools.ietf.org/html/rfc6553 */
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0x2b, /* next header: IPv6-Route */
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0x00, /* hdr ext len: 0 * 8 + 8 = 8 */
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0x63, /* option type: RPL Option */
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0x04, /* opt data len: 4 */
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0x80, /* flags, Down: 1, Rank-Error: 0, Forwarding-Error: 0 */
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0x00, /* RPLInstanceID */
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0x80, 0x00, /* SenderRank */
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/* RPL Routing Header */
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/* https://tools.ietf.org/html/rfc6554 */
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0x11, /* next header: UDP */
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0x02, /* hdr ext len: 2 * 8 + 8 = 24 */
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0x03, /* routing type: SRH */
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0x02, /* segments left: 2 */
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0xef, /* ComprI: 14, ComprE: 15 */
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0xd0, 0x00, 0x00, /* pad and reserved */
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/* address: fd01::3, fd01::2 */
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0x00, 0x03, 0x02, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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/* UDP (ignored) */
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0x1f, 0x90, /* source port: 8080 */
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0x1f, 0x90, /* destination port: 8080 */
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0x00, 0x08, /* length: 8 */
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0xff, 0xff, /* checksum */
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};
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gnrc_pktsnip_t *pkt = gnrc_pktbuf_add(NULL, data, sizeof(data), GNRC_NETTYPE_UNDEF);
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gnrc_netapi_dispatch_receive(GNRC_NETTYPE_IPV6, GNRC_NETREG_DEMUX_CTX_ALL, pkt);
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printf("pkt->users: %d\n", pkt->users);
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assert(pkt->users == 0);
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}
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int main(void)
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{
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/* we need a message queue for the thread running the shell in order to
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* receive potentially fast incoming networking packets */
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msg_init_queue(_main_msg_queue, MAIN_QUEUE_SIZE);
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puts("RIOT network stack example application");
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_send_packet();
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/* start shell */
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puts("All up, running the shell now");
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char line_buf[SHELL_DEFAULT_BUFSIZE];
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shell_run(NULL, line_buf, SHELL_DEFAULT_BUFSIZE);
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/* should be never reached */
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return 0;
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}
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38
tests/gnrc_ipv6_ext/tests/01-run.py
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38
tests/gnrc_ipv6_ext/tests/01-run.py
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#!/usr/bin/env python3
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# Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
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# Copyright (C) 2016 Takuo Yonezawa <Yonezawa-T2@mail.dnp.co.jp>
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#
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# This file is subject to the terms and conditions of the GNU Lesser
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# General Public License v2.1. See the file LICENSE in the top level
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# directory for more details.
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import os
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import sys
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sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
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import testrunner
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def testfunc(child):
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index = child.expect_exact([
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"ipv6: Received (src = fd01::1, dst = fd01::2, next header = 0, length = 40)",
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"pkt->users: 0"
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])
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if index == 1:
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# debug is disabled
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return
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child.expect_exact("ipv6: handle extension header (nh = 0)")
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child.expect_exact("ipv6: handle extension header (nh = 43)")
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child.expect_exact("ipv6: Received (src = fd01::1, dst = fd01::3, next header = 0, length = 40)")
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child.expect_exact("ipv6: handle extension header (nh = 0)")
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child.expect_exact("ipv6: handle extension header (nh = 43)")
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child.expect_exact("ipv6: Received (src = fd01::1, dst = fd01::2, next header = 0, length = 40)")
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child.expect_exact("ipv6: handle extension header (nh = 0)")
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child.expect_exact("ipv6: handle extension header (nh = 43)")
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child.expect_exact("ipv6: forward nh = 17 to other threads")
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child.expect_exact("pkt->users: 0")
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if __name__ == "__main__":
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sys.exit(testrunner.run(testfunc))
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