source: lib/libtrace_int.h @ 1974620

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivegetfragoffhelplibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 1974620 was 1974620, checked in by Daniel Lawson <dlawson@…>, 15 years ago

added format conversion into pcap and erf formats, and have tested the writers for these formats.

Added a 'type' field to the format_t structure, which specifies the type of trace we're dealing with - erf, pcap, wag.

updated munge to use the new functions.

  • Property mode set to 100644
File size: 4.8 KB
Line 
1/*
2 * This file is part of libtrace
3 *
4 * Copyright (c) 2004 The University of Waikato, Hamilton, New Zealand.
5 * Authors: Daniel Lawson
6 *          Perry Lorier
7 *         
8 * All rights reserved.
9 *
10 * This code has been developed by the University of Waikato WAND
11 * research group. For further information please see http://www.wand.net.nz/
12 *
13 * libtrace is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * libtrace is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with libtrace; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
26 *
27 * $Id$
28 *
29 */
30
31#ifndef LIBTRACE_INT_H
32#define LIBTRACE_INT_H
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
38#include "common.h"
39#include "config.h"
40#include "libtrace.h"
41#include "fifo.h"
42#include "rtserver.h"
43
44#if HAVE_PCAP_BPF_H
45#  include <pcap-bpf.h>
46#else
47#  ifdef HAVE_NET_BPF_H
48#    include <net/bpf.h>
49#  endif
50#endif
51
52#if HAVE_PCAP_H
53#  include <pcap.h>
54#  ifdef HAVE_PCAP_INT_H
55#    include <pcap-int.h>
56#  endif
57#endif
58
59#ifdef HAVE_ZLIB_H
60#  include <zlib.h>
61#endif
62
63
64#include "wag.h"
65
66#ifdef HAVE_DAG_API
67#  include "dagnew.h"
68#  include "dagapi.h"
69#else
70#  include "dagformat.h"
71#endif
72
73typedef enum {SOCKET, TRACE, STDIN, DEVICE, INTERFACE, RT } source_t;
74
75
76static struct {
77        int err_num;    // error code
78        char *problem;  // the format, uri etc that caused the error for reporting purposes
79} trace_err;
80
81
82#define RP_BUFSIZE 65536
83
84struct libtrace_format_data_t;
85
86struct libtrace_event_t {
87        struct {
88                void *buffer;
89                int size;
90        } packet;
91        double tdelta;
92//      double trace_start_ts;
93//      double real_start_ts;
94        double trace_last_ts;
95
96//      double last_ts;
97//      double start_ts;
98};
99
100/** The information about traces that are open
101 * @internal
102 */
103struct libtrace_t {
104        struct libtrace_format_t *format; /**< format driver pointer */
105        struct libtrace_format_data_t *format_data; /**<format data pointer */
106        source_t sourcetype;    /**< The type (device,file, etc */
107
108        struct libtrace_event_t event;
109        char *uridata;
110        struct fifo_t *fifo;   
111
112};
113
114struct libtrace_out_t {
115        struct libtrace_format_t *format;
116        struct libtrace_format_data_out_t *format_data;
117
118        char *uridata;
119        struct fifo_t *fifo;
120};
121
122
123struct trace_sll_header_t {
124        uint16_t pkttype;               /* packet type */
125        uint16_t hatype;                /* link-layer address type */
126        uint16_t halen;                 /* link-layer address length */
127        char addr[8];                   /* link-layer address */
128        uint16_t protocol;              /* protocol */
129};
130
131#ifndef PF_RULESET_NAME_SIZE
132#define PF_RULESET_NAME_SIZE 16
133#endif
134
135#ifndef IFNAMSIZ
136#define IFNAMSIZ 16
137#endif
138
139struct trace_pflog_header_t {
140        uint8_t    length;
141        sa_family_t   af;
142        uint8_t    action;
143        uint8_t    reason;
144        char       ifname[IFNAMSIZ];
145        char       ruleset[PF_RULESET_NAME_SIZE];
146        uint32_t   rulenr;
147        uint32_t   subrulenr;
148        uint8_t    dir;
149        uint8_t    pad[3];
150};
151
152struct libtrace_format_t {
153        char *name;
154        char *version;
155        char *type;
156        int (*init_input)(struct libtrace_t *libtrace);
157        int (*init_output)(struct libtrace_out_t *libtrace);
158        int (*config_output)(struct libtrace_out_t *libtrace, int argc, char *argv[]);
159        int (*fin_input)(struct libtrace_t *libtrace);
160        int (*fin_output)(struct libtrace_out_t *libtrace);
161        int (*read_packet)(struct libtrace_t *libtrace, struct libtrace_packet_t *packet);
162        int (*write_packet)(struct libtrace_out_t *libtrace, struct libtrace_packet_t *packet);
163        void* (*get_link)(const struct libtrace_packet_t *packet);
164        libtrace_linktype_t (*get_link_type)(const struct libtrace_packet_t *packet);
165        int8_t (*get_direction)(const struct libtrace_packet_t *packet);
166        int8_t (*set_direction)(const struct libtrace_packet_t *packet, int8_t direction);
167        uint64_t (*get_erf_timestamp)(const struct libtrace_packet_t *packet);
168        struct timeval (*get_timeval)(const struct libtrace_packet_t *packet);
169        double (*get_seconds)(const struct libtrace_packet_t *packet);
170        int (*get_capture_length)(const struct libtrace_packet_t *packet);
171        int (*get_wire_length)(const struct libtrace_packet_t *packet);
172        size_t (*truncate_packet)(struct libtrace_packet_t *packet,size_t size);
173        int (*get_fd)(struct libtrace_packet_t *packet);
174        struct libtrace_eventobj_t (*trace_event)(struct libtrace_t *trace, struct libtrace_packet_t *packet); 
175        void (*help)();
176};
177
178extern struct libtrace_format_t *form;
179
180void register_format(struct libtrace_format_t *format);
181       
182#ifdef __cplusplus
183}
184#endif
185
186#endif // LIBTRACE_INT_H
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