Annotation of embedaddon/iperf/src/dscp.c, revision 1.1
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 */
! 93:
! 94: static const struct {
! 95: const char *name;
! 96: int value;
! 97: } ipqos[] = {
! 98: { "af11", IPTOS_DSCP_AF11 },
! 99: { "af12", IPTOS_DSCP_AF12 },
! 100: { "af13", IPTOS_DSCP_AF13 },
! 101: { "af21", IPTOS_DSCP_AF21 },
! 102: { "af22", IPTOS_DSCP_AF22 },
! 103: { "af23", IPTOS_DSCP_AF23 },
! 104: { "af31", IPTOS_DSCP_AF31 },
! 105: { "af32", IPTOS_DSCP_AF32 },
! 106: { "af33", IPTOS_DSCP_AF33 },
! 107: { "af41", IPTOS_DSCP_AF41 },
! 108: { "af42", IPTOS_DSCP_AF42 },
! 109: { "af43", IPTOS_DSCP_AF43 },
! 110: { "cs0", IPTOS_DSCP_CS0 },
! 111: { "cs1", IPTOS_DSCP_CS1 },
! 112: { "cs2", IPTOS_DSCP_CS2 },
! 113: { "cs3", IPTOS_DSCP_CS3 },
! 114: { "cs4", IPTOS_DSCP_CS4 },
! 115: { "cs5", IPTOS_DSCP_CS5 },
! 116: { "cs6", IPTOS_DSCP_CS6 },
! 117: { "cs7", IPTOS_DSCP_CS7 },
! 118: { "ef", IPTOS_DSCP_EF },
! 119: { "lowdelay", IPTOS_LOWDELAY },
! 120: { "throughput", IPTOS_THROUGHPUT },
! 121: { "reliability", IPTOS_RELIABILITY },
! 122: { NULL, -1 }
! 123: };
! 124:
! 125: int
! 126: parse_qos(const char *cp)
! 127: {
! 128: unsigned int i;
! 129: char *ep = NULL;
! 130: long val;
! 131:
! 132: if (cp == NULL)
! 133: return -1;
! 134: for (i = 0; ipqos[i].name != NULL; i++) {
! 135: if (strcasecmp(cp, ipqos[i].name) == 0)
! 136: return ipqos[i].value;
! 137: }
! 138: /* Try parsing as an integer */
! 139: val = strtol(cp, &ep, 0);
! 140: if (*cp == '\0' || *ep != '\0' || val < 0 || val > 255)
! 141: return -1;
! 142: return val;
! 143: }
! 144:
! 145: const char *
! 146: iptos2str(int iptos)
! 147: {
! 148: int i;
! 149: static char iptos_str[sizeof "0xff"];
! 150: if (iptos < 0 || iptos > 64) iptos = 0;
! 151: for (i = 0; ipqos[i].name != NULL; i++) {
! 152: if (ipqos[i].value == iptos)
! 153: return ipqos[i].name;
! 154: }
! 155: snprintf(iptos_str, sizeof iptos_str, "0x%02x", iptos);
! 156: return iptos_str;
! 157: }
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