83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*
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* Copyright (C) 2013-15, Christian Tschudin, University of Basel
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* Copyright (C) 2015, Oliver Hahm, Inria
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* File history:
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* 2015-11-09 created (based on ccn-lite-peek.c)
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*/
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#include <unistd.h>
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#include "random.h"
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#include "xtimer.h"
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#include "timex.h"
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#include "arpa/inet.h"
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#include "net/packet.h"
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#include "net/gnrc/netif.h"
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#include "net/gnrc/netif/hdr.h"
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#include "net/gnrc/netapi.h"
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#include "ccn-lite-riot.h"
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#include "ccnl-core.h"
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#include "ccnl-headers.h"
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#include "ccnl-pkt-ndntlv.h"
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#include "ccnl-defs.h"
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#include "ccnl-ext.h"
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#include "ccnl-pkt-ccntlv.h"
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/**
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* Maximum number of Interest retransmissions
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*/
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#define CCNL_INTEREST_RETRIES (3)
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#define MAX_ADDR_LEN (8U)
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#define BUF_SIZE (128)
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static unsigned char _int_buf[BUF_SIZE];
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static unsigned char _cont_buf[BUF_SIZE];
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static void _usage(char *arg)
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{
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printf("usage: %s <URI> [relay]\n"
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"%% %s /riot/peter/schmerzl (classic lookup)\n",
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arg, arg);
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}
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int _ccnl_interest(int argc, char **argv)
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{
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if (argc < 2) {
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_usage(argv[0]);
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return -1;
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}
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/* XXX: https://xkcd.com/221/ */
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genrand_init(0x4);
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/* initialize address with 0xFF for broadcast */
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size_t addr_len = MAX_ADDR_LEN;
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uint8_t relay_addr[MAX_ADDR_LEN];
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memset(relay_addr, UINT8_MAX, MAX_ADDR_LEN);
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if (argc > 2) {
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addr_len = gnrc_netif_addr_from_str(relay_addr, sizeof(relay_addr), argv[2]);
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}
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for (int cnt = 0; cnt < CCNL_INTEREST_RETRIES; cnt++) {
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ccnl_send_interest(CCNL_SUITE_NDNTLV, argv[1], relay_addr, addr_len, NULL, _int_buf, BUF_SIZE);
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ccnl_wait_for_chunk(_cont_buf, BUF_SIZE);
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}
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return 0;
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}
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