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80 lines
1.4 KiB
80 lines
1.4 KiB
4 months ago
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/*
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* DiffServ classname <-> DiffServ codepoint mapping functions.
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*
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* The latest list of the mappings can be found at:
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* <http://www.iana.org/assignments/dscp-registry>
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*
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* This code is released under the GNU GPL v2, 1991
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*
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* Author: Iain Barnes
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*/
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#include <stdio.h>
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#include <string.h>
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#include <xtables.h>
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static const struct ds_class
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{
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const char *name;
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unsigned int dscp;
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} ds_classes[] =
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{
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{ "CS0", 0x00 },
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{ "CS1", 0x08 },
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{ "CS2", 0x10 },
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{ "CS3", 0x18 },
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{ "CS4", 0x20 },
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{ "CS5", 0x28 },
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{ "CS6", 0x30 },
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{ "CS7", 0x38 },
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{ "BE", 0x00 },
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{ "AF11", 0x0a },
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{ "AF12", 0x0c },
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{ "AF13", 0x0e },
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{ "AF21", 0x12 },
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{ "AF22", 0x14 },
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{ "AF23", 0x16 },
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{ "AF31", 0x1a },
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{ "AF32", 0x1c },
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{ "AF33", 0x1e },
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{ "AF41", 0x22 },
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{ "AF42", 0x24 },
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{ "AF43", 0x26 },
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{ "EF", 0x2e }
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};
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static unsigned int
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class_to_dscp(const char *name)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(ds_classes); i++) {
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if (!strncasecmp(name, ds_classes[i].name,
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strlen(ds_classes[i].name)))
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return ds_classes[i].dscp;
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}
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xtables_error(PARAMETER_PROBLEM,
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"Invalid DSCP value `%s'\n", name);
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}
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#if 0
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static const char *
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dscp_to_name(unsigned int dscp)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(ds_classes); ++i)
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if (dscp == ds_classes[i].dscp)
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return ds_classes[i].name;
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xtables_error(PARAMETER_PROBLEM,
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"Invalid DSCP value `%d'\n", dscp);
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}
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#endif
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