1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/* trace.h
Definitions for omapi tracing facility... */
/*
* Copyright (c) 2001 Internet Software Consortium.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of The Internet Software Consortium nor the names
* of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This software has been written for the Internet Software Consortium
* by Ted Lemon, as part of a project for Nominum, Inc. To learn more
* about the Internet Software Consortium, see http://www.isc.org/. To
* learn more about Nominum, Inc., see ``http://www.nominum.com''.
*/
#define TRACEFILE_MAGIC 0x64484370UL /* dHCp */
#define TRACEFILE_VERSION 1
/* The first thing in a trace file is the header, which basically just
defines the version of the file. */
typedef struct {
u_int32_t magic; /* Magic number for trace file. */
u_int32_t version; /* Version of file. */
int32_t hlen; /* Length of this header. */
int32_t phlen; /* Length of packet headers. */
} tracefile_header_t;
/* The trace file is composed of a bunch of trace packets. Each such packet
has a type, followed by a length, followed by a timestamp, followed by
the actual contents of the packet. The type indexes are not fixed -
they are allocated either on readback or when writing a trace file.
One index type is reserved - type zero means that this record is a type
name to index mapping. */
typedef struct {
u_int32_t type_index; /* Index to the type of handler that this
packet needs. */
u_int32_t length; /* Length of the packet. This includes
everything except the fixed header. */
u_int32_t when; /* When the packet was written. */
u_int32_t pad; /* Round this out to a quad boundary. */
} tracepacket_t;
#define TRACE_INDEX_MAPPING_SIZE 4 /* trace_index_mapping_t less name. */
typedef struct {
u_int32_t index;
char name [1];
} trace_index_mapping_t;
struct trace_type; /* forward */
typedef struct trace_type trace_type_t;
struct trace_type {
trace_type_t *next;
int index;
char *name;
void *baggage;
void (*have_packet) (trace_type_t *, unsigned, char *);
void (*stop_tracing) (trace_type_t *);
};
typedef struct trace_iov {
const char *buf;
unsigned len;
} trace_iov_t;
typedef struct {
u_int16_t addrtype;
u_int16_t addrlen;
u_int8_t address [16];
u_int16_t port;
} trace_addr_t;
void trace_free_all (void);
int trace_playback (void);
int trace_record (void);
isc_result_t trace_init (void (*set_time) (u_int32_t), const char *, int);
isc_result_t trace_begin (const char *, const char *, int);
isc_result_t trace_write_packet (trace_type_t *, unsigned, const char *,
const char *, int);
isc_result_t trace_write_packet_iov (trace_type_t *, int, trace_iov_t *,
const char *, int);
void trace_type_stash (trace_type_t *);
trace_type_t *trace_type_register (const char *, void *,
void (*) (trace_type_t *,
unsigned, char *),
void (*) (trace_type_t *),
const char *, int);
void trace_stop (void);
void trace_index_map_input (trace_type_t *, unsigned, char *);
void trace_index_stop_tracing (trace_type_t *);
void trace_replay_init (void);
void trace_file_replay (const char *);
isc_result_t trace_get_next_packet (trace_type_t **, tracepacket_t *,
char **, unsigned *, unsigned *);
isc_result_t trace_get_file (trace_type_t *,
const char *, unsigned *, char **);
isc_result_t trace_get_packet (trace_type_t **, unsigned *, char **);
time_t trace_snoop_time (trace_type_t **);
|
