Annotation of embedaddon/iperf/src/dscp.c, revision 1.1.1.2
1.1 misho 1: /* dscp lookup routines lifted wholesale from openssh */
2:
3: /*
4: * Copyright (c) 2000 Markus Friedl. All rights reserved.
5: * Copyright (c) 2005,2006 Damien Miller. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26: */
27:
28: #include <stdio.h>
29: #include <string.h>
30: #include <strings.h>
31: #include <stdlib.h>
32: #include <inttypes.h>
33:
34: #ifdef WIN32
35: #define strcasecmp(a,b) _stricmp(a,b)
36: #define snprintf _snprintf
37: #endif
38:
39: int parse_qos(const char *cp);
40: const char * iptos2str(int iptos);
41:
42: /*
43: * Definitions for IP type of service (ip_tos)
44: */
45:
46: #ifdef HAVE_NETINET_IN_SYSTM_H
47: #include <netinet/in_systm.h>
48: #endif
49: #ifdef HAVE_NETINET_IP_H
50: #include <netinet/ip.h>
51: #endif
52:
53: #ifndef IPTOS_LOWDELAY
54: # define IPTOS_LOWDELAY 0x10
55: # define IPTOS_THROUGHPUT 0x08
56: # define IPTOS_RELIABILITY 0x04
57: # define IPTOS_LOWCOST 0x02
58: # define IPTOS_MINCOST IPTOS_LOWCOST
59: #endif /* IPTOS_LOWDELAY */
60:
61: /*
62: * Definitions for DiffServ Codepoints as per RFC2474
63: */
64: #ifndef IPTOS_DSCP_AF11
65: # define IPTOS_DSCP_AF11 0x28
66: # define IPTOS_DSCP_AF12 0x30
67: # define IPTOS_DSCP_AF13 0x38
68: # define IPTOS_DSCP_AF21 0x48
69: # define IPTOS_DSCP_AF22 0x50
70: # define IPTOS_DSCP_AF23 0x58
71: # define IPTOS_DSCP_AF31 0x68
72: # define IPTOS_DSCP_AF32 0x70
73: # define IPTOS_DSCP_AF33 0x78
74: # define IPTOS_DSCP_AF41 0x88
75: # define IPTOS_DSCP_AF42 0x90
76: # define IPTOS_DSCP_AF43 0x98
77: # define IPTOS_DSCP_EF 0xb8
78: #endif /* IPTOS_DSCP_AF11 */
79:
80: #ifndef IPTOS_DSCP_CS0
81: # define IPTOS_DSCP_CS0 0x00
82: # define IPTOS_DSCP_CS1 0x20
83: # define IPTOS_DSCP_CS2 0x40
84: # define IPTOS_DSCP_CS3 0x60
85: # define IPTOS_DSCP_CS4 0x80
86: # define IPTOS_DSCP_CS5 0xa0
87: # define IPTOS_DSCP_CS6 0xc0
88: # define IPTOS_DSCP_CS7 0xe0
89: #endif /* IPTOS_DSCP_CS0 */
90: #ifndef IPTOS_DSCP_EF
91: # define IPTOS_DSCP_EF 0xb8
92: #endif /* IPTOS_DSCP_EF */
1.1.1.2 ! misho 93: #ifndef IPTOS_DSCP_VA
! 94: # define IPTOS_DSCP_VA 0xb0
! 95: #endif /* IPTOS_DSCP_VA */
1.1 misho 96:
97: static const struct {
98: const char *name;
99: int value;
100: } ipqos[] = {
101: { "af11", IPTOS_DSCP_AF11 },
102: { "af12", IPTOS_DSCP_AF12 },
103: { "af13", IPTOS_DSCP_AF13 },
104: { "af21", IPTOS_DSCP_AF21 },
105: { "af22", IPTOS_DSCP_AF22 },
106: { "af23", IPTOS_DSCP_AF23 },
107: { "af31", IPTOS_DSCP_AF31 },
108: { "af32", IPTOS_DSCP_AF32 },
109: { "af33", IPTOS_DSCP_AF33 },
110: { "af41", IPTOS_DSCP_AF41 },
111: { "af42", IPTOS_DSCP_AF42 },
112: { "af43", IPTOS_DSCP_AF43 },
113: { "cs0", IPTOS_DSCP_CS0 },
114: { "cs1", IPTOS_DSCP_CS1 },
115: { "cs2", IPTOS_DSCP_CS2 },
116: { "cs3", IPTOS_DSCP_CS3 },
117: { "cs4", IPTOS_DSCP_CS4 },
118: { "cs5", IPTOS_DSCP_CS5 },
119: { "cs6", IPTOS_DSCP_CS6 },
120: { "cs7", IPTOS_DSCP_CS7 },
121: { "ef", IPTOS_DSCP_EF },
1.1.1.2 ! misho 122: { "va", IPTOS_DSCP_VA },
1.1 misho 123: { "lowdelay", IPTOS_LOWDELAY },
124: { "throughput", IPTOS_THROUGHPUT },
125: { "reliability", IPTOS_RELIABILITY },
126: { NULL, -1 }
127: };
128:
129: int
130: parse_qos(const char *cp)
131: {
132: unsigned int i;
133: char *ep = NULL;
134: long val;
135:
136: if (cp == NULL)
137: return -1;
138: for (i = 0; ipqos[i].name != NULL; i++) {
139: if (strcasecmp(cp, ipqos[i].name) == 0)
140: return ipqos[i].value;
141: }
142: /* Try parsing as an integer */
1.1.1.2 ! misho 143: /* Max DSCP value is 2**6 - 1 */
1.1 misho 144: val = strtol(cp, &ep, 0);
1.1.1.2 ! misho 145: if (*cp == '\0' || *ep != '\0' || val < 0 || val > 63)
1.1 misho 146: return -1;
1.1.1.2 ! misho 147: return val << 2;
1.1 misho 148: }
149:
150: const char *
151: iptos2str(int iptos)
152: {
153: int i;
154: static char iptos_str[sizeof "0xff"];
155: if (iptos < 0 || iptos > 64) iptos = 0;
156: for (i = 0; ipqos[i].name != NULL; i++) {
157: if (ipqos[i].value == iptos)
158: return ipqos[i].name;
159: }
160: snprintf(iptos_str, sizeof iptos_str, "0x%02x", iptos);
161: return iptos_str;
162: }
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