source: lib/libtrace_int.h @ 52f8fc2

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivegetfragoffhelplibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 52f8fc2 was 52f8fc2, checked in by Perry Lorier <perry@…>, 16 years ago

Cleanup some uses of packet->trace where the trace is already available!

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File size: 5.5 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
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#include "daglegacy.h"
65       
66#ifdef HAVE_DAG_API
67#  include "dagnew.h"
68#  include "dagapi.h"
69#else
70#  include "dagformat.h"
71#endif
72
73#include <stdbool.h>
74
75
76void trace_set_err(int errcode,const char *msg,...);
77
78#define RP_BUFSIZE 65536
79
80struct libtrace_format_data_t;
81
82struct libtrace_event_t {
83        struct {
84                void *buffer;
85                int size;
86        } packet;
87        double tdelta;
88        double trace_last_ts;
89};
90
91/** The information about traces that are open
92 * @internal
93 */
94struct libtrace_t {
95        struct libtrace_format_t *format; /**< format driver pointer */
96        struct libtrace_format_data_t *format_data; /**<format data pointer */
97        bool started;
98
99        struct libtrace_event_t event;
100        char *uridata;
101        struct tracefifo_t *fifo;   
102        struct libtrace_filter_t *filter; /**< used by libtrace if the module
103                                            * doesn't support filters natively
104                                            */
105        int snaplen;                    /**< used by libtrace if the module
106                                          * doesn't support snapping natively
107                                          */
108};
109
110struct libtrace_out_t {
111        struct libtrace_format_t *format;
112        struct libtrace_format_data_out_t *format_data;
113
114        char *uridata;
115        struct tracefifo_t *fifo;
116        bool started;
117};
118
119
120struct trace_sll_header_t {
121        uint16_t pkttype;               /* packet type */
122        uint16_t hatype;                /* link-layer address type */
123        uint16_t halen;                 /* link-layer address length */
124        char addr[8];                   /* link-layer address */
125        uint16_t protocol;              /* protocol */
126};
127
128#ifndef PF_RULESET_NAME_SIZE
129#define PF_RULESET_NAME_SIZE 16
130#endif
131
132#ifndef IFNAMSIZ
133#define IFNAMSIZ 16
134#endif
135
136struct trace_pflog_header_t {
137        uint8_t    length;
138        sa_family_t   af;
139        uint8_t    action;
140        uint8_t    reason;
141        char       ifname[IFNAMSIZ];
142        char       ruleset[PF_RULESET_NAME_SIZE];
143        uint32_t   rulenr;
144        uint32_t   subrulenr;
145        uint8_t    dir;
146        uint8_t    pad[3];
147};
148
149struct libtrace_format_t {
150        char *name;
151        char *version;
152        enum base_format_t type;
153        int (*init_input)(libtrace_t *libtrace);
154        int (*config_input)(libtrace_t *libtrace,trace_option_t option,void *value);
155        int (*start_input)(libtrace_t *libtrace);
156        int (*pause_input)(libtrace_t *libtrace);
157        int (*init_output)(libtrace_out_t *libtrace);
158        int (*config_output)(libtrace_out_t *libtrace, trace_option_output_t, void *);
159        int (*start_output)(libtrace_out_t *libtrace);
160        int (*fin_input)(libtrace_t *libtrace);
161        int (*fin_output)(libtrace_out_t *libtrace);
162        int (*read_packet)(libtrace_t *libtrace, struct libtrace_packet_t *packet);
163        int (*write_packet)(libtrace_out_t *libtrace, const libtrace_packet_t *packet);
164        libtrace_linktype_t (*get_link_type)(const libtrace_packet_t *packet);
165        int8_t (*get_direction)(const libtrace_packet_t *packet);
166        int8_t (*set_direction)(const libtrace_packet_t *packet, int8_t direction);
167        uint64_t (*get_erf_timestamp)(const libtrace_packet_t *packet);
168        struct timeval (*get_timeval)(const libtrace_packet_t *packet);
169        double (*get_seconds)(const libtrace_packet_t *packet);
170        int (*seek_erf)(libtrace_t *trace, uint64_t timestamp);
171        int (*seek_timeval)(libtrace_t *trace, struct timeval tv);
172        int (*seek_seconds)(libtrace_t *trace, double seconds);
173        int (*get_capture_length)(const libtrace_packet_t *packet);
174        int (*get_wire_length)(const libtrace_packet_t *packet);
175        int (*get_framing_length)(const libtrace_packet_t *packet);
176        size_t (*set_capture_length)(struct libtrace_packet_t *packet,size_t size);
177        int (*get_fd)(const libtrace_t *trace);
178        struct libtrace_eventobj_t (*trace_event)(libtrace_t *trace, libtrace_packet_t *packet);       
179        void (*help)();
180};
181
182extern struct libtrace_format_t *form;
183
184void register_format(struct libtrace_format_t *format);
185
186libtrace_linktype_t pcap_dlt_to_libtrace(int dlt);
187char libtrace_to_pcap_dlt(libtrace_linktype_t type);
188libtrace_linktype_t erf_type_to_libtrace(char erf);
189char libtrace_to_erf_type(libtrace_linktype_t linktype);
190
191#if HAVE_BPF
192/* A type encapsulating a bpf filter
193 * This type covers the compiled bpf filter, as well as the original filter
194 * string
195 *
196 */
197struct libtrace_filter_t {
198        struct bpf_program filter;
199        int flag;
200        char * filterstring;
201};
202#endif
203       
204#ifdef __cplusplus
205}
206#endif
207
208#endif /* LIBTRACE_INT_H */
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