source: libpacketdump/ospf2_4.c

cachetimestampsdevelopdpdk-ndagetsiliverc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformance
Last change on this file was 1de522d, checked in by Shane Alcock <salcock@…>, 3 years ago

Fix maybe uninitialised warnings in OSPF libpacketdump decoders.

  • Property mode set to 100644
File size: 2.0 KB
Line 
1/*
2 *
3 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
4 * All rights reserved.
5 *
6 * This file is part of libtrace.
7 *
8 * This code has been developed by the University of Waikato WAND
9 * research group. For further information please see http://www.wand.net.nz/
10 *
11 * libtrace is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * libtrace is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 *
24 *
25 */
26#include <sys/types.h>
27#include <sys/socket.h>
28#include <netinet/in.h>
29#include <stdio.h>
30#include <arpa/inet.h>
31#include "libpacketdump.h"
32
33
34DLLEXPORT void decode(int link_type UNUSED,const char *packet,unsigned len) {
35        libtrace_ospf_ls_update_t *update = (libtrace_ospf_ls_update_t *)packet;
36        unsigned char *lsa_ptr = NULL;
37        uint8_t lsa_type = 0;
38        libtrace_ospf_lsa_v2_t *lsa_hdr = NULL;
39        unsigned char *lsa_body = NULL;
40        int i = 0;
41        int max_lsas = 0;
42        uint32_t rem = len;
43        uint16_t lsa_length = 0;
44
45
46        if (len < 4)
47                return;
48        max_lsas = ntohl(update->ls_num_adv);
49        printf(" OSPF LS Update: LSAs %u\n", max_lsas);
50       
51
52        lsa_ptr = trace_get_first_ospf_lsa_from_update_v2(update, &rem);
53
54        if (lsa_ptr == NULL || rem == 0)
55                return;
56
57        while (trace_get_next_ospf_lsa_v2(&lsa_ptr, &lsa_hdr, &lsa_body,
58                        &rem, &lsa_type, &lsa_length) > 0) {
59
60                i ++;
61                if (lsa_hdr) {
62
63                        decode_next((char *)lsa_hdr, lsa_length, "ospf2", 1000);
64                }       
65
66                if (lsa_body) {
67                        decode_next((char *)lsa_body, lsa_length - 
68                                        sizeof(libtrace_ospf_lsa_v2_t),
69                                        "ospf2",
70                                        1000 + lsa_type);
71                }
72
73                if (i == max_lsas)
74                        break;
75
76
77        }
78}
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