1dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat/* 2dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * q_tbf.c TBF. 3dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * 4dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * This program is free software; you can redistribute it and/or 5dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * modify it under the terms of the GNU General Public License 6dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * as published by the Free Software Foundation; either version 7dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * 2 of the License, or (at your option) any later version. 8dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * 9dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> 10dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat * 11dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat */ 12dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 13dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <stdio.h> 14dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <stdlib.h> 15dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <unistd.h> 16dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <syslog.h> 17dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <fcntl.h> 18dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <sys/socket.h> 19dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <netinet/in.h> 20dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <arpa/inet.h> 21dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include <string.h> 22dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 23dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include "utils.h" 24dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat#include "tc_util.h" 25dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 26dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehatstatic void explain(void) 27dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat{ 28dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Usage: ... tbf limit BYTES burst BYTES[/BYTES] rate KBPS [ mtu BYTES[/BYTES] ]\n"); 29dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, " [ peakrate KBPS ] [ latency TIME ] "); 30dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "[ overhead BYTES ] [ linklayer TYPE ]\n"); 31dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat} 32dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 33dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehatstatic void explain1(char *arg) 34dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat{ 35dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Illegal \"%s\"\n", arg); 36dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat} 37dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 38dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 39dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehatstatic int tbf_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) 40dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat{ 41dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat int ok=0; 42dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat struct tc_tbf_qopt opt; 43dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat __u32 rtab[256]; 44dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat __u32 ptab[256]; 45dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat unsigned buffer=0, mtu=0, mpu=0, latency=0; 46dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat int Rcell_log=-1, Pcell_log = -1; 47dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat unsigned short overhead=0; 48dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat unsigned int linklayer = LINKLAYER_ETHERNET; /* Assume ethernet */ 49dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat struct rtattr *tail; 50dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 51dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat memset(&opt, 0, sizeof(opt)); 52dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 53dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat while (argc > 0) { 54dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (matches(*argv, "limit") == 0) { 55dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 56dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.limit || latency) { 57dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"limit/latency\" spec\n"); 58dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 59dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 60dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_size(&opt.limit, *argv)) { 61dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("limit"); 62dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 63dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 64dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat ok++; 65dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (matches(*argv, "latency") == 0) { 66dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 67dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.limit || latency) { 68dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"limit/latency\" spec\n"); 69dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 70dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 71dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_time(&latency, *argv)) { 72dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("latency"); 73dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 74dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 75dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat ok++; 76dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (matches(*argv, "burst") == 0 || 77dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat strcmp(*argv, "buffer") == 0 || 78dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat strcmp(*argv, "maxburst") == 0) { 79dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 80dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (buffer) { 81dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"buffer/burst\" spec\n"); 82dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 83dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 84dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_size_and_cell(&buffer, &Rcell_log, *argv) < 0) { 85dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("buffer"); 86dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 87dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 88dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat ok++; 89dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (strcmp(*argv, "mtu") == 0 || 90dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat strcmp(*argv, "minburst") == 0) { 91dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 92dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (mtu) { 93dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"mtu/minburst\" spec\n"); 94dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 95dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 96dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_size_and_cell(&mtu, &Pcell_log, *argv) < 0) { 97dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("mtu"); 98dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 99dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 100dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat ok++; 101dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (strcmp(*argv, "mpu") == 0) { 102dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 103dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (mpu) { 104dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"mpu\" spec\n"); 105dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 106dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 107dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_size(&mpu, *argv)) { 108dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("mpu"); 109dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 110dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 111dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat ok++; 112dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (strcmp(*argv, "rate") == 0) { 113dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 114dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.rate.rate) { 115dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"rate\" spec\n"); 116dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 117dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 118dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_rate(&opt.rate.rate, *argv)) { 119dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("rate"); 120dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 121dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 122dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat ok++; 123dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (matches(*argv, "peakrate") == 0) { 124dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 125dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.peakrate.rate) { 126dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"peakrate\" spec\n"); 127dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 128dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 129dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_rate(&opt.peakrate.rate, *argv)) { 130dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("peakrate"); 131dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 132dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 133dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat ok++; 134dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (matches(*argv, "overhead") == 0) { 135dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 136dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (overhead) { 137dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Double \"overhead\" spec\n"); 138dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 139dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 140dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_u16(&overhead, *argv, 10)) { 141dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("overhead"); return -1; 142dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 143dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (matches(*argv, "linklayer") == 0) { 144dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat NEXT_ARG(); 145dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (get_linklayer(&linklayer, *argv)) { 146dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain1("linklayer"); return -1; 147dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 148dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else if (strcmp(*argv, "help") == 0) { 149dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain(); 150dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 151dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else { 152dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "What is \"%s\"?\n", *argv); 153dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat explain(); 154dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 155dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 156dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat argc--; argv++; 157dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 158dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 1591a441f49ec87ef74b978d7ae17da2a9b2ca6e811Dmitry Shmidt if (!ok) { 1601a441f49ec87ef74b978d7ae17da2a9b2ca6e811Dmitry Shmidt explain(); 1611a441f49ec87ef74b978d7ae17da2a9b2ca6e811Dmitry Shmidt return -1; 1621a441f49ec87ef74b978d7ae17da2a9b2ca6e811Dmitry Shmidt } 163dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 164dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.rate.rate == 0 || !buffer) { 165dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Both \"rate\" and \"burst\" are required.\n"); 166dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 167dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 168dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.peakrate.rate) { 169dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (!mtu) { 170dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "\"mtu\" is required, if \"peakrate\" is requested.\n"); 171dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 172dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 173dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 174dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 175dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.limit == 0 && latency == 0) { 176dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "Either \"limit\" or \"latency\" are required.\n"); 177dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 178dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 179dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 180dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.limit == 0) { 181dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat double lim = opt.rate.rate*(double)latency/TIME_UNITS_PER_SEC + buffer; 182dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.peakrate.rate) { 183dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat double lim2 = opt.peakrate.rate*(double)latency/TIME_UNITS_PER_SEC + mtu; 184dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (lim2 < lim) 185dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat lim = lim2; 186dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 187dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat opt.limit = lim; 188dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 189dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 190dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat opt.rate.mpu = mpu; 191dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat opt.rate.overhead = overhead; 192dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (tc_calc_rtable(&opt.rate, rtab, Rcell_log, mtu, linklayer) < 0) { 193dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "TBF: failed to calculate rate table.\n"); 194dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 195dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 196dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat opt.buffer = tc_calc_xmittime(opt.rate.rate, buffer); 197dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 198dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.peakrate.rate) { 199dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat opt.peakrate.mpu = mpu; 200dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat opt.peakrate.overhead = overhead; 201dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (tc_calc_rtable(&opt.peakrate, ptab, Pcell_log, mtu, linklayer) < 0) { 202dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(stderr, "TBF: failed to calculate peak rate table.\n"); 203dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 204dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 205dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat opt.mtu = tc_calc_xmittime(opt.peakrate.rate, mtu); 206dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 207dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 208dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat tail = NLMSG_TAIL(n); 209dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); 210dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat addattr_l(n, 2024, TCA_TBF_PARMS, &opt, sizeof(opt)); 211dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat addattr_l(n, 3024, TCA_TBF_RTAB, rtab, 1024); 212dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt.peakrate.rate) 213dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat addattr_l(n, 4096, TCA_TBF_PTAB, ptab, 1024); 214dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; 215dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return 0; 216dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat} 217dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 218dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehatstatic int tbf_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) 219dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat{ 220dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat struct rtattr *tb[TCA_TBF_PTAB+1]; 221dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat struct tc_tbf_qopt *qopt; 222dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat double buffer, mtu; 223dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat double latency; 224dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat SPRINT_BUF(b1); 225dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat SPRINT_BUF(b2); 226dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 227dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (opt == NULL) 228dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return 0; 229dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 230dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat parse_rtattr_nested(tb, TCA_TBF_PTAB, opt); 231dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 232dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (tb[TCA_TBF_PARMS] == NULL) 233dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 234dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 235dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat qopt = RTA_DATA(tb[TCA_TBF_PARMS]); 236dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (RTA_PAYLOAD(tb[TCA_TBF_PARMS]) < sizeof(*qopt)) 237dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return -1; 238dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "rate %s ", sprint_rate(qopt->rate.rate, b1)); 239dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat buffer = tc_calc_xmitsize(qopt->rate.rate, qopt->buffer); 240dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (show_details) { 241dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "burst %s/%u mpu %s ", sprint_size(buffer, b1), 242dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 1<<qopt->rate.cell_log, sprint_size(qopt->rate.mpu, b2)); 243dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else { 244dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "burst %s ", sprint_size(buffer, b1)); 245dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 246dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (show_raw) 247dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "[%08x] ", qopt->buffer); 248dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (qopt->peakrate.rate) { 249dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "peakrate %s ", sprint_rate(qopt->peakrate.rate, b1)); 250dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (qopt->mtu || qopt->peakrate.mpu) { 251dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat mtu = tc_calc_xmitsize(qopt->peakrate.rate, qopt->mtu); 252dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (show_details) { 253dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "mtu %s/%u mpu %s ", sprint_size(mtu, b1), 254dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 1<<qopt->peakrate.cell_log, sprint_size(qopt->peakrate.mpu, b2)); 255dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } else { 256dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "minburst %s ", sprint_size(mtu, b1)); 257dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 258dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (show_raw) 259dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "[%08x] ", qopt->mtu); 260dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 261dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 262dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 263dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (show_raw) 264dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "limit %s ", sprint_size(qopt->limit, b1)); 265dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 266dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat latency = TIME_UNITS_PER_SEC*(qopt->limit/(double)qopt->rate.rate) - tc_core_tick2time(qopt->buffer); 267dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (qopt->peakrate.rate) { 268dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat double lat2 = TIME_UNITS_PER_SEC*(qopt->limit/(double)qopt->peakrate.rate) - tc_core_tick2time(qopt->mtu); 269dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (lat2 > latency) 270dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat latency = lat2; 271dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 272dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "lat %s ", sprint_time(latency, b1)); 273dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 274dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat if (qopt->rate.overhead) { 275dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat fprintf(f, "overhead %d", qopt->rate.overhead); 276dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat } 277dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 278dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat return 0; 279dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat} 280dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 281dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehatstruct qdisc_util tbf_qdisc_util = { 282dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat .id = "tbf", 283dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat .parse_qopt = tbf_parse_opt, 284dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat .print_qopt = tbf_print_opt, 285dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat}; 286dcfb7a77f8709125e97c313cb8ab6ec4d87468f4San Mehat 287