1 /* 2 * DiffServ classname <-> DiffServ codepoint mapping functions. 3 * 4 * The latest list of the mappings can be found at: 5 * <http://www.iana.org/assignments/dscp-registry> 6 * 7 * This code is released under the GNU GPL v2, 1991 8 * 9 * Author: Iain Barnes 10 */ 11 12 #include <stdio.h> 13 #include <string.h> 14 #include <xtables.h> 15 16 17 static const struct ds_class 18 { 19 const char *name; 20 unsigned int dscp; 21 } ds_classes[] = 22 { 23 { "CS0", 0x00 }, 24 { "CS1", 0x08 }, 25 { "CS2", 0x10 }, 26 { "CS3", 0x18 }, 27 { "CS4", 0x20 }, 28 { "CS5", 0x28 }, 29 { "CS6", 0x30 }, 30 { "CS7", 0x38 }, 31 { "BE", 0x00 }, 32 { "AF11", 0x0a }, 33 { "AF12", 0x0c }, 34 { "AF13", 0x0e }, 35 { "AF21", 0x12 }, 36 { "AF22", 0x14 }, 37 { "AF23", 0x16 }, 38 { "AF31", 0x1a }, 39 { "AF32", 0x1c }, 40 { "AF33", 0x1e }, 41 { "AF41", 0x22 }, 42 { "AF42", 0x24 }, 43 { "AF43", 0x26 }, 44 { "EF", 0x2e } 45 }; 46 47 48 49 static unsigned int 50 class_to_dscp(const char *name) 51 { 52 unsigned int i; 53 54 for (i = 0; i < ARRAY_SIZE(ds_classes); i++) { 55 if (!strncasecmp(name, ds_classes[i].name, 56 strlen(ds_classes[i].name))) 57 return ds_classes[i].dscp; 58 } 59 60 xtables_error(PARAMETER_PROBLEM, 61 "Invalid DSCP value `%s'\n", name); 62 } 63 64 65 #if 0 66 static const char * 67 dscp_to_name(unsigned int dscp) 68 { 69 int i; 70 71 for (i = 0; i < ARRAY_SIZE(ds_classes); ++i) 72 if (dscp == ds_classes[i].dscp) 73 return ds_classes[i].name; 74 75 xtables_error(PARAMETER_PROBLEM, 76 "Invalid DSCP value `%d'\n", dscp); 77 } 78 #endif 79 80
