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RIOT/tests/gnrc_sixlowpan/main.c 5.71 KB
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  /*
   * Copyright (C) 2015 Freie Universitรคt 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 extension header handling of gnrc stack.
   *
   * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
   * @author      Takuo Yonezawa <Yonezawa-T2@mail.dnp.co.jp>
   *
   * @}
   */
  
  #include <stdio.h>
  
  #include "shell.h"
  #include "msg.h"
  #include "net/ipv6/addr.h"
  #include "net/gnrc/ipv6/netif.h"
  #include "net/gnrc/pkt.h"
  #include "net/gnrc/pktbuf.h"
  #include "net/gnrc/netreg.h"
  #include "net/gnrc/netapi.h"
  #include "net/gnrc/netif.h"
  #include "net/gnrc/netif/hdr.h"
  #include "net/gnrc/pktdump.h"
  
  static void _init_interface(void)
  {
      kernel_pid_t ifs[GNRC_NETIF_NUMOF];
      ipv6_addr_t addr = IPV6_ADDR_UNSPECIFIED;
  
      gnrc_netif_get(ifs);
  
      /* fd01::01 */
      addr.u8[0] = 0xfd;
      addr.u8[1] = 0x01;
      addr.u8[15] = 0x01;
      gnrc_ipv6_netif_add_addr(ifs[0], &addr, 64, GNRC_IPV6_NETIF_ADDR_FLAGS_UNICAST);
  }
  
  static void _send_packet(void)
  {
      kernel_pid_t ifs[GNRC_NETIF_NUMOF];
  
      gnrc_netif_get(ifs);
  
      struct {
          gnrc_netif_hdr_t netif_hdr;
          uint8_t src[8];
          uint8_t dst[8];
      } netif_hdr = {
          .src = { 0x02, 0x00, 0x00, 0xFF, 0xFE, 0x00, 0x00, 0x02 },
          .dst = { 0x02, 0x00, 0x00, 0xFF, 0xFE, 0x00, 0x00, 0x01 },
      };
  
      gnrc_netif_hdr_init(&(netif_hdr.netif_hdr), 8, 8);
  
      netif_hdr.netif_hdr.if_pid = ifs[0];
  
      uint8_t data1[] = {
          /* 6LoWPAN Header */
          /* Fragmentation Header (first) */
          0xc0, 0x94, /* 0b11000: frag1, 0b00010010100: datagram_size (148) */
          0x00, 0x01, /* datagram_tag */
          /* 0b011: LOWPAN_IPHC */
          /* 0b11: Traffic Class and Flow Label are elided */
          /* 0b1: Next Header is compressed */
          /* 0b11: The Hop Limit field is compressed and the hop limit is 255 */
          0x7f,
          /* 0b0: No additional 8-bit Context Identifier Extension is used */
          /* 0b0: Source address compression uses stateless compression */
          /* 0b11: source address mode is 0 bits */
          /* 0b0: Destination address is not a multicast address */
          /* 0x0: Destination address compression uses stateless compression */
          /* 0x00: destination address mode is 128 bits */
          0x30,
  
          /* destination address: fd01::1 */
          0xfd, 0x01, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x01,
  
          /* 0b11110: UDP LOWPAN_NHC */
          /* 0b0: Checksum is carried in-line */
          /* 0b11: First 12 bits of both Source Port and Destination Port are 0xf0b and elided */
          0xf3,
          0x00, /* Source Port and Destination Port (4 bits each) */
          0x23, 0x2f, /* Checksum */
  
          /* payload */
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      };
  
      uint8_t data2[] = {
          /* 6LoWPAN Header */
          /* Fragmentation Header (rest) */
          0xe0, 0x94, /* 0b11100: frag1, 0b00010010100: datagram_size (148) */
          0x00, 0x01, /* datagram_tag */
          0x0c,       /* datagram_offset (12 * 8 = 96) */
  
          /* payload */
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
      };
  
      gnrc_netreg_entry_t dump_6lowpan = GNRC_NETREG_ENTRY_INIT_PID(GNRC_NETREG_DEMUX_CTX_ALL, gnrc_pktdump_pid);
      gnrc_netreg_entry_t dump_ipv6 = GNRC_NETREG_ENTRY_INIT_PID(GNRC_NETREG_DEMUX_CTX_ALL, gnrc_pktdump_pid);
      gnrc_netreg_entry_t dump_udp = GNRC_NETREG_ENTRY_INIT_PID(GNRC_NETREG_DEMUX_CTX_ALL, gnrc_pktdump_pid);
      gnrc_netreg_entry_t dump_udp_61616 = GNRC_NETREG_ENTRY_INIT_PID(61616, gnrc_pktdump_pid);
  
      gnrc_netreg_register(GNRC_NETTYPE_SIXLOWPAN, &dump_6lowpan);
      gnrc_netreg_register(GNRC_NETTYPE_IPV6, &dump_ipv6);
      gnrc_netreg_register(GNRC_NETTYPE_UDP, &dump_udp);
      gnrc_netreg_register(GNRC_NETTYPE_UDP, &dump_udp_61616);
  
      gnrc_pktsnip_t *netif1 = gnrc_pktbuf_add(NULL,
                                              &netif_hdr,
                                              sizeof(netif_hdr),
                                              GNRC_NETTYPE_NETIF);
      gnrc_pktsnip_t *pkt1 = gnrc_pktbuf_add(netif1,
                                             data1,
                                             sizeof(data1),
                                             GNRC_NETTYPE_SIXLOWPAN);
  
      gnrc_netapi_dispatch_receive(GNRC_NETTYPE_SIXLOWPAN, GNRC_NETREG_DEMUX_CTX_ALL, pkt1);
  
      gnrc_pktsnip_t *netif2 = gnrc_pktbuf_add(NULL,
                                               &netif_hdr,
                                               sizeof(netif_hdr),
                                               GNRC_NETTYPE_NETIF);
      gnrc_pktsnip_t *pkt2 = gnrc_pktbuf_add(netif2,
                                             data2,
                                             sizeof(data2),
                                             GNRC_NETTYPE_SIXLOWPAN);
  
      gnrc_netapi_dispatch_receive(GNRC_NETTYPE_SIXLOWPAN, GNRC_NETREG_DEMUX_CTX_ALL, pkt2);
  }
  
  int main(void)
  {
      puts("RIOT network stack example application");
  
      _init_interface();
      _send_packet();
  
      return 0;
  }