source: lib/libtrace_int.h @ b69afb1

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivegetfragoffhelplibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since b69afb1 was b69afb1, checked in by Shane Alcock <salcock@…>, 16 years ago

Removed all rtclient_output stuff, as it will now be left up to the user to write their own rtservers.
As a result, had to include stdio.h in a couple of other files that were previously getting it from rtserver.h.

  • Property mode set to 100644
File size: 4.9 KB
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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
43#if HAVE_PCAP_BPF_H
44#  include <pcap-bpf.h>
45#else
46#  ifdef HAVE_NET_BPF_H
47#    include <net/bpf.h>
48#  endif
49#endif
50
51#if HAVE_PCAP_H
52#  include <pcap.h>
53#  ifdef HAVE_PCAP_INT_H
54#    include <pcap-int.h>
55#  endif
56#endif
57
58#ifdef HAVE_ZLIB_H
59#  include <zlib.h>
60#endif
61
62
63#include "wag.h"
64
65#ifdef HAVE_DAG_API
66#  include "dagnew.h"
67#  include "dagapi.h"
68#else
69#  include "dagformat.h"
70#endif
71
72typedef enum {SOCKET, TRACE, STDIN, DEVICE, INTERFACE, RT } source_t;
73
74
75static struct {
76        int err_num;    // error code
77        char *problem;  // the format, uri etc that caused the error for reporting purposes
78} trace_err;
79
80/** Opaque structure holding information about a packet */
81#define LIBTRACE_PACKET_BUFSIZE 65536
82struct libtrace_packet_t {
83        struct libtrace_t *trace;
84        //void *buffer;
85        char buffer[LIBTRACE_PACKET_BUFSIZE];
86        size_t size;
87        uint8_t status;
88};
89
90#define RP_BUFSIZE 65536
91
92struct libtrace_format_data_t;
93
94struct libtrace_event_t {
95        struct {
96                void *buffer;
97                int size;
98        } packet;
99        double tdelta;
100        double trace_last_ts;
101};
102
103/** The information about traces that are open
104 * @internal
105 */
106struct libtrace_t {
107        struct libtrace_format_t *format; /**< format driver pointer */
108        struct libtrace_format_data_t *format_data; /**<format data pointer */
109        source_t sourcetype;    /**< The type (device,file, etc */
110
111        struct libtrace_event_t event;
112        char *uridata;
113        struct tracefifo_t *fifo;   
114
115};
116
117struct libtrace_out_t {
118        struct libtrace_format_t *format;
119        struct libtrace_format_data_out_t *format_data;
120
121        char *uridata;
122        struct tracefifo_t *fifo;
123};
124
125
126struct trace_sll_header_t {
127        uint16_t pkttype;               /* packet type */
128        uint16_t hatype;                /* link-layer address type */
129        uint16_t halen;                 /* link-layer address length */
130        char addr[8];                   /* link-layer address */
131        uint16_t protocol;              /* protocol */
132};
133
134#ifndef PF_RULESET_NAME_SIZE
135#define PF_RULESET_NAME_SIZE 16
136#endif
137
138#ifndef IFNAMSIZ
139#define IFNAMSIZ 16
140#endif
141
142struct trace_pflog_header_t {
143        uint8_t    length;
144        sa_family_t   af;
145        uint8_t    action;
146        uint8_t    reason;
147        char       ifname[IFNAMSIZ];
148        char       ruleset[PF_RULESET_NAME_SIZE];
149        uint32_t   rulenr;
150        uint32_t   subrulenr;
151        uint8_t    dir;
152        uint8_t    pad[3];
153};
154
155struct libtrace_format_t {
156        char *name;
157        char *version;
158        char *type;
159        int (*init_input)(struct libtrace_t *libtrace);
160        int (*init_output)(struct libtrace_out_t *libtrace);
161        int (*config_output)(struct libtrace_out_t *libtrace, int argc, char *argv[]);
162        int (*fin_input)(struct libtrace_t *libtrace);
163        int (*fin_output)(struct libtrace_out_t *libtrace);
164        int (*read_packet)(struct libtrace_t *libtrace, struct libtrace_packet_t *packet);
165        int (*write_packet)(struct libtrace_out_t *libtrace, struct libtrace_packet_t *packet);
166        void* (*get_link)(const struct libtrace_packet_t *packet);
167        libtrace_linktype_t (*get_link_type)(const struct libtrace_packet_t *packet);
168        int8_t (*get_direction)(const struct libtrace_packet_t *packet);
169        int8_t (*set_direction)(const struct libtrace_packet_t *packet, int8_t direction);
170        uint64_t (*get_erf_timestamp)(const struct libtrace_packet_t *packet);
171        struct timeval (*get_timeval)(const struct libtrace_packet_t *packet);
172        double (*get_seconds)(const struct libtrace_packet_t *packet);
173        int (*get_capture_length)(const struct libtrace_packet_t *packet);
174        int (*get_wire_length)(const struct libtrace_packet_t *packet);
175        size_t (*truncate_packet)(struct libtrace_packet_t *packet,size_t size);
176        int (*get_fd)(struct libtrace_packet_t *packet);
177        struct libtrace_eventobj_t (*trace_event)(struct libtrace_t *trace, struct libtrace_packet_t *packet); 
178        void (*help)();
179};
180
181extern struct libtrace_format_t *form;
182
183void register_format(struct libtrace_format_t *format);
184       
185#ifdef __cplusplus
186}
187#endif
188
189#endif // LIBTRACE_INT_H
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