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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/* DSCP lookup routines lifted from openssh, modified a bit for WiFi WMMM
*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2005,2006 Damien Miller. All rights reserved.
* Copyright (c) 2022 Robert McMahon. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#if HAVE_STRING_H
#include <string.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifdef WIN32
#define strcasecmp(a,b) _stricmp(a,b)
#define snprintf _snprintf
#endif
#include "dscp.h"
/*
* Definitions for IP type of service (ip_tos)
*/
#if HAVE_NETINET_IN_SYSTM_H
#if defined(__FreeBSD__)
#include <sys/types.h>
#endif
#include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#ifndef IPTOS_LOWDELAY
# define IPTOS_LOWDELAY 0x10
# define IPTOS_THROUGHPUT 0x08
# define IPTOS_RELIABILITY 0x04
# define IPTOS_LOWCOST 0x02
# define IPTOS_MINCOST IPTOS_LOWCOST
#endif /* IPTOS_LOWDELAY */
/*
* Definitions for DiffServ Codepoints as per RFC2474, rfc8622, rfc8325
*/
#ifndef IPTOS_DSCP_AF11
# define IPTOS_DSCP_AF11 0x28
# define IPTOS_DSCP_AF12 0x30
# define IPTOS_DSCP_AF13 0x38
# define IPTOS_DSCP_AF21 0x48
# define IPTOS_DSCP_AF22 0x50
# define IPTOS_DSCP_AF23 0x58
# define IPTOS_DSCP_AF31 0x68
# define IPTOS_DSCP_AF32 0x70
# define IPTOS_DSCP_AF33 0x78
# define IPTOS_DSCP_AF41 0x88
# define IPTOS_DSCP_AF42 0x90
# define IPTOS_DSCP_AF43 0x98
# define IPTOS_DSCP_EF 0xb8
# define IPTOS_DSCP_LE 0x01 // rfc8622
# define IPTOS_DSCP_NQB 0x05 // rfc8325
# define IPTOS_DSCP_NQB2 0x2D // rfc8325 45 decimal
#endif /* IPTOS_DSCP_AF11 */
#ifndef IPTOS_DSCP_CS0
# define IPTOS_DSCP_CS0 0x00
# define IPTOS_DSCP_CS1 0x20
# define IPTOS_DSCP_CS2 0x40
# define IPTOS_DSCP_CS3 0x60
# define IPTOS_DSCP_CS4 0x80
# define IPTOS_DSCP_CS5 0xa0
# define IPTOS_DSCP_CS6 0xc0
# define IPTOS_DSCP_CS7 0xe0
#endif /* IPTOS_DSCP_CS0 */
#ifndef IPTOS_DSCP_EF
# define IPTOS_DSCP_EF 0xb8
#endif /* IPTOS_DSCP_EF */
static const struct {
const char *name;
int value;
} ipqos[] = {
{ "af11", IPTOS_DSCP_AF11 },
{ "af12", IPTOS_DSCP_AF12 },
{ "af13", IPTOS_DSCP_AF13 },
{ "af21", IPTOS_DSCP_AF21 },
{ "af22", IPTOS_DSCP_AF22 },
{ "af23", IPTOS_DSCP_AF23 },
{ "af31", IPTOS_DSCP_AF31 },
{ "af32", IPTOS_DSCP_AF32 },
{ "af33", IPTOS_DSCP_AF33 },
{ "af41", IPTOS_DSCP_AF41 },
{ "af42", IPTOS_DSCP_AF42 },
{ "af43", IPTOS_DSCP_AF43 },
{ "cs0", IPTOS_DSCP_CS0 },
{ "cs1", IPTOS_DSCP_CS1 },
{ "cs2", IPTOS_DSCP_CS2 },
{ "cs3", IPTOS_DSCP_CS3 },
{ "cs4", IPTOS_DSCP_CS4 },
{ "cs5", IPTOS_DSCP_CS5 },
{ "cs6", IPTOS_DSCP_CS6 },
{ "cs7", IPTOS_DSCP_CS7 },
{ "ef", IPTOS_DSCP_EF },
{ "le", IPTOS_DSCP_LE },
{ "nqb", IPTOS_DSCP_NQB },
{ "nqb2", IPTOS_DSCP_NQB2 },
{ "ac_be", IPTOS_DSCP_CS0 },
{ "ac_bk", IPTOS_DSCP_CS1 },
{ "ac_vi", IPTOS_DSCP_CS4 },
{ "ac_vo", IPTOS_DSCP_EF },
{ "lowdelay", IPTOS_LOWDELAY },
{ "throughput", IPTOS_THROUGHPUT },
{ "reliability", IPTOS_RELIABILITY },
{ NULL, -1 }
};
int
parse_ipqos(const char *cp)
{
unsigned int i;
char *ep = NULL;
long val;
if (cp == NULL)
return -1;
for (i = 0; ipqos[i].name != NULL; i++) {
if (strcasecmp(cp, ipqos[i].name) == 0)
return ipqos[i].value;
}
/* Try parsing as an integer */
val = strtol(cp, &ep, 0);
if (*cp == '\0' || *ep != '\0' || val < 0 || val > 255)
return -1;
return val;
}
const char *
iptos2str(int iptos)
{
int i;
static char iptos_str[sizeof "0xff"];
if (iptos < 0 || iptos > 64) iptos = 0;
for (i = 0; ipqos[i].name != NULL; i++) {
if (ipqos[i].value == iptos)
return ipqos[i].name;
}
snprintf(iptos_str, sizeof iptos_str, "0x%02x", iptos);
return iptos_str;
}
|
