q_red.c revision 95812b56a5a66e7e9a21744cfe8bc0bb9791ea98
1aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger/* 2aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * q_red.c RED. 3aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 4aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * This program is free software; you can redistribute it and/or 5aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * modify it under the terms of the GNU General Public License 6aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * as published by the Free Software Foundation; either version 7aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 2 of the License, or (at your option) any later version. 8aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 9aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> 10aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 11aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger */ 12aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 13aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <stdio.h> 14aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <stdlib.h> 15aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <unistd.h> 16aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <syslog.h> 17aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <fcntl.h> 18aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <sys/socket.h> 19aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <netinet/in.h> 20aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <arpa/inet.h> 21aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <string.h> 22aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 23aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include "utils.h" 24aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include "tc_util.h" 25aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 26aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include "tc_red.h" 27aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 28aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic void explain(void) 29aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 30aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Usage: ... red limit BYTES min BYTES max BYTES avpkt BYTES burst PACKETS\n"); 31aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, " probability PROBABILITY bandwidth KBPS [ ecn ]\n"); 32aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 33aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 34aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#define usage() return(-1) 35aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 36aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic int red_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) 37aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 38aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int ok=0; 39aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct tc_red_qopt opt; 40aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger unsigned burst = 0; 41aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger unsigned avpkt = 0; 42aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger double probability = 0.02; 43aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger unsigned rate = 0; 44aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int ecn_ok = 0; 45aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int wlog; 46aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger __u8 sbuf[256]; 47aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct rtattr *tail; 48aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 49aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger memset(&opt, 0, sizeof(opt)); 50aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 51aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger while (argc > 0) { 52aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (strcmp(*argv, "limit") == 0) { 53aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 54aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_size(&opt.limit, *argv)) { 55aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Illegal \"limit\"\n"); 56aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 57aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 58aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 59aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "min") == 0) { 60aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 61aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_size(&opt.qth_min, *argv)) { 62aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Illegal \"min\"\n"); 63aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 64aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 65aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 66aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "max") == 0) { 67aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 68aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_size(&opt.qth_max, *argv)) { 69aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Illegal \"max\"\n"); 70aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 71aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 72aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 73aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "burst") == 0) { 74aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 75aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_unsigned(&burst, *argv, 0)) { 76aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Illegal \"burst\"\n"); 77aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 78aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 79aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 80aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "avpkt") == 0) { 81aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 82aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_size(&avpkt, *argv)) { 83aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Illegal \"avpkt\"\n"); 84aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 85aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 86aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 87aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "probability") == 0) { 88aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 89aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (sscanf(*argv, "%lg", &probability) != 1) { 90aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Illegal \"probability\"\n"); 91aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 92aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 93aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 94aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "bandwidth") == 0) { 95aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 96aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_rate(&rate, *argv)) { 97aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Illegal \"bandwidth\"\n"); 98aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 99aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 100aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 101aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "ecn") == 0) { 102aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ecn_ok = 1; 103aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ok++; 104aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "help") == 0) { 105aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger explain(); 106aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 107aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else { 108aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "What is \"%s\"?\n", *argv); 109aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger explain(); 110aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 111aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 112aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger argc--; argv++; 113aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 114aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 115aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (!ok) 116aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 117aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 118aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (rate == 0) 119aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger get_rate(&rate, "10Mbit"); 120aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 121aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (!opt.qth_min || !opt.qth_max || !burst || !opt.limit || !avpkt) { 122aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Required parameter (min, max, burst, limit, avpket) is missing\n"); 123aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 124aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 125aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 126aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if ((wlog = tc_red_eval_ewma(opt.qth_min, burst, avpkt)) < 0) { 127aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "RED: failed to calculate EWMA constant.\n"); 128aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 129aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 130aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (wlog >= 10) 131aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "RED: WARNING. Burst %d seems to be to large.\n", burst); 132aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger opt.Wlog = wlog; 133aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if ((wlog = tc_red_eval_P(opt.qth_min, opt.qth_max, probability)) < 0) { 134aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "RED: failed to calculate probability.\n"); 135aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 136aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 137aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger opt.Plog = wlog; 138aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if ((wlog = tc_red_eval_idle_damping(opt.Wlog, avpkt, rate, sbuf)) < 0) { 139aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "RED: failed to calculate idle damping table.\n"); 140aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 141aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 142aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger opt.Scell_log = wlog; 143aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (ecn_ok) { 144aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#ifdef TC_RED_ECN 145aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger opt.flags |= TC_RED_ECN; 146aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#else 147aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "RED: ECN support is missing in this binary.\n"); 148aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 149aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#endif 150aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 151aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 152aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger tail = (struct rtattr*)(((void*)n)+NLMSG_ALIGN(n->nlmsg_len)); 153aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 154aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); 155aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger addattr_l(n, 1024, TCA_RED_PARMS, &opt, sizeof(opt)); 156aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger addattr_l(n, 1024, TCA_RED_STAB, sbuf, 256); 157aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger tail->rta_len = (((void*)n)+NLMSG_ALIGN(n->nlmsg_len)) - (void*)tail; 158aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 159aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 160aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 161aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic int red_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) 162aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 163aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct rtattr *tb[TCA_RED_STAB+1]; 164aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct tc_red_qopt *qopt; 165aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger SPRINT_BUF(b1); 166aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger SPRINT_BUF(b2); 167aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger SPRINT_BUF(b3); 168aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 169aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (opt == NULL) 170aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 171aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 172aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger memset(tb, 0, sizeof(tb)); 173aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger parse_rtattr(tb, TCA_RED_STAB, RTA_DATA(opt), RTA_PAYLOAD(opt)); 174aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 175aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (tb[TCA_RED_PARMS] == NULL) 176aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 177aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger qopt = RTA_DATA(tb[TCA_RED_PARMS]); 178aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (RTA_PAYLOAD(tb[TCA_RED_PARMS]) < sizeof(*qopt)) 179aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 180aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(f, "limit %s min %s max %s ", 181aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger sprint_size(qopt->limit, b1), 182aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger sprint_size(qopt->qth_min, b2), 183aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger sprint_size(qopt->qth_max, b3)); 184aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#ifdef TC_RED_ECN 185aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (qopt->flags & TC_RED_ECN) 186aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(f, "ecn "); 187aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#endif 188aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (show_details) { 189aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(f, "ewma %u Plog %u Scell_log %u", 190aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger qopt->Wlog, qopt->Plog, qopt->Scell_log); 191aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 192aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 193aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 194aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 195aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic int red_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats) 196aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 197aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#ifdef TC_RED_ECN 198aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct tc_red_xstats *st; 199aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 200aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (xstats == NULL) 201aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 202aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 203aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (RTA_PAYLOAD(xstats) < sizeof(*st)) 204aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 205aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 206aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger st = RTA_DATA(xstats); 207aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(f, " marked %u early %u pdrop %u other %u", 208aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger st->marked, st->early, st->pdrop, st->other); 209aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 210aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 211aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#endif 212aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 213aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 214aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 215aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 21695812b56a5a66e7e9a21744cfe8bc0bb9791ea98net[shemminger]!kaberstruct qdisc_util red_qdisc_util = { 217f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .id = "red", 218f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .parse_qopt = red_parse_opt, 219f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .print_qopt = red_print_opt, 220f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .print_xstats = red_print_xstats, 221aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger}; 222