19e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger/* 29e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * q_htb.c HTB. 39e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * 49e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * This program is free software; you can redistribute it and/or 59e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * modify it under the terms of the GNU General Public License 69e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * as published by the Free Software Foundation; either version 79e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * 2 of the License, or (at your option) any later version. 89e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * 99e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * Authors: Martin Devera, devik@cdi.cz 109e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger * 119e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger */ 129e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 139e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <stdio.h> 149e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <stdlib.h> 159e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <unistd.h> 169e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <syslog.h> 179e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <fcntl.h> 189e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <sys/socket.h> 199e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <netinet/in.h> 209e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <arpa/inet.h> 219e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include <string.h> 229e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 239e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include "utils.h" 249e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#include "tc_util.h" 259e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 269e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#define HTB_TC_VER 0x30003 279e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#if HTB_TC_VER >> 16 != TC_HTB_PROTOVER 289e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#error "Different kernel and TC HTB versions" 299e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger#endif 309e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 319e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemmingerstatic void explain(void) 329e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger{ 339e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "Usage: ... qdisc add ... htb [default N] [r2q N]\n" 34b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet " [direct_qlen P]\n" 359e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " default minor id of class to which unclassified packets are sent {0}\n" 369e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " r2q DRR quantums are computed as rate in Bps/r2q {10}\n" 379e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " debug string of 16 numbers each 0-3 {0}\n\n" 38b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet " direct_qlen Limit of the direct queue {in packets}\n" 39a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger "... class add ... htb rate R1 [burst B1] [mpu B] [overhead O]\n" 40a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger " [prio P] [slot S] [pslot PS]\n" 419e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " [ceil R2] [cburst B2] [mtu MTU] [quantum Q]\n" 429e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " rate rate allocated to this class (class can still borrow)\n" 439e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " burst max bytes burst which can be accumulated during idle period {computed}\n" 44a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger " mpu minimum packet size used in rate computations\n" 45a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger " overhead per-packet size overhead used in rate computations\n" 46292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer " linklay adapting to a linklayer e.g. atm\n" 479e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " ceil definite upper class rate (no borrows) {rate}\n" 489e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " cburst burst but for ceil {computed}\n" 499e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " mtu max packet size we create rate map for {1600}\n" 509e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " prio priority of leaf; lower are served first {0}\n" 519e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger " quantum how much bytes to serve from leaf at once {use r2q}\n" 529e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger "\nTC HTB version %d.%d\n",HTB_TC_VER>>16,HTB_TC_VER&0xffff 539e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger ); 549e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger} 559e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 569e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemmingerstatic void explain1(char *arg) 579e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger{ 589e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "Illegal \"%s\"\n", arg); 599e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain(); 609e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger} 619e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 629e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 639e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemmingerstatic int htb_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) 649e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger{ 654d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA unsigned int direct_qlen = ~0U; 669e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger struct tc_htb_glob opt; 679e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger struct rtattr *tail; 689e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger unsigned i; char *p; 699e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger memset(&opt,0,sizeof(opt)); 709e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger opt.rate2quantum = 10; 719e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger opt.version = 3; 729e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 739e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger while (argc > 0) { 749e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (matches(*argv, "r2q") == 0) { 7522fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger NEXT_ARG(); 7622fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (get_u32(&opt.rate2quantum, *argv, 10)) { 7722fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger explain1("r2q"); return -1; 7822fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger } 799e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (matches(*argv, "default") == 0) { 8022fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger NEXT_ARG(); 8122fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (get_u32(&opt.defcls, *argv, 16)) { 8222fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger explain1("default"); return -1; 8322fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger } 849e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (matches(*argv, "debug") == 0) { 8522fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger NEXT_ARG(); p = *argv; 8622fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger for (i=0; i<16; i++,p++) { 8722fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (*p<'0' || *p>'3') break; 8822fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger opt.debug |= (*p-'0')<<(2*i); 8922fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger } 904d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA } else if (matches(*argv, "direct_qlen") == 0) { 914d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA NEXT_ARG(); 924d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA if (get_u32(&direct_qlen, *argv, 10)) { 934d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA explain1("direct_qlen"); return -1; 944d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA } 959e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else { 969e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "What is \"%s\"?\n", *argv); 979e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain(); 989e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 999e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1009e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger argc--; argv++; 1019e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1021b52a7622ea8eda9980ce2dbe984985ac092d92an); tail = NLMSG_TAIL(n); 1039e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); 1049e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger addattr_l(n, 2024, TCA_HTB_INIT, &opt, NLMSG_ALIGN(sizeof(opt))); 1054d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA if (direct_qlen != ~0U) 1064d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA addattr_l(n, 2024, TCA_HTB_DIRECT_QLEN, 1074d4da09e0036107e7c49362b38df220e9a2f7b12Hiroaki SHIMODA &direct_qlen, sizeof(direct_qlen)); 1081b52a7622ea8eda9980ce2dbe984985ac092d92avoid *) NLMSG_TAIL(n) - (void *) tail; tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; 1099e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return 0; 1109e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger} 1119e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 1129e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemmingerstatic int htb_parse_class_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) 1139e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger{ 1149e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger int ok=0; 1159e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger struct tc_htb_opt opt; 1169e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger __u32 rtab[256],ctab[256]; 1179e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger unsigned buffer=0,cbuffer=0; 118a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger int cell_log=-1,ccell_log = -1; 119bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer unsigned mtu; 120bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer unsigned short mpu = 0; 121bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer unsigned short overhead = 0; 122292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer unsigned int linklayer = LINKLAYER_ETHERNET; /* Assume ethernet */ 1239e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger struct rtattr *tail; 1248334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet __u64 ceil64 = 0, rate64 = 0; 1259e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 1269e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger memset(&opt, 0, sizeof(opt)); mtu = 1600; /* eth packet len */ 1279e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 1289e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger while (argc > 0) { 1299e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (matches(*argv, "prio") == 0) { 1309e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger NEXT_ARG(); 1319e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (get_u32(&opt.prio, *argv, 10)) { 1329e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain1("prio"); return -1; 1339e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1349e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger ok++; 1359e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (matches(*argv, "mtu") == 0) { 1369e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger NEXT_ARG(); 1379e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (get_u32(&mtu, *argv, 10)) { 1389e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain1("mtu"); return -1; 1399e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 140a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger } else if (matches(*argv, "mpu") == 0) { 141a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger NEXT_ARG(); 142bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer if (get_u16(&mpu, *argv, 10)) { 143a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger explain1("mpu"); return -1; 144a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger } 145a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger } else if (matches(*argv, "overhead") == 0) { 146a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger NEXT_ARG(); 147bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer if (get_u16(&overhead, *argv, 10)) { 148a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger explain1("overhead"); return -1; 149a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger } 150292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer } else if (matches(*argv, "linklayer") == 0) { 151292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer NEXT_ARG(); 152292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer if (get_linklayer(&linklayer, *argv)) { 153292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer explain1("linklayer"); return -1; 154292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer } 1559e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (matches(*argv, "quantum") == 0) { 1569e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger NEXT_ARG(); 1579e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (get_u32(&opt.quantum, *argv, 10)) { 1589e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain1("quantum"); return -1; 1599e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1609e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (matches(*argv, "burst") == 0 || 16122fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger strcmp(*argv, "buffer") == 0 || 16222fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger strcmp(*argv, "maxburst") == 0) { 1639e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger NEXT_ARG(); 1649e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (get_size_and_cell(&buffer, &cell_log, *argv) < 0) { 1659e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain1("buffer"); 1669e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 1679e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1689e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger ok++; 1699e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (matches(*argv, "cburst") == 0 || 17022fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger strcmp(*argv, "cbuffer") == 0 || 17122fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger strcmp(*argv, "cmaxburst") == 0) { 1729e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger NEXT_ARG(); 1739e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (get_size_and_cell(&cbuffer, &ccell_log, *argv) < 0) { 1749e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain1("cbuffer"); 1759e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 1769e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1779e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger ok++; 1789e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (strcmp(*argv, "ceil") == 0) { 1799e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger NEXT_ARG(); 1808334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (ceil64) { 1819e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "Double \"ceil\" spec\n"); 1829e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 1839e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1848334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (get_rate64(&ceil64, *argv)) { 1859e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain1("ceil"); 1869e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 1879e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1889e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger ok++; 1899e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (strcmp(*argv, "rate") == 0) { 1909e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger NEXT_ARG(); 1918334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (rate64) { 1929e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "Double \"rate\" spec\n"); 1939e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 1949e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1958334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (get_rate64(&rate64, *argv)) { 1969e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain1("rate"); 1979e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 1989e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 1999e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger ok++; 2009e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else if (strcmp(*argv, "help") == 0) { 2019e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain(); 2029e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 2039e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } else { 2049e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "What is \"%s\"?\n", *argv); 2059e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger explain(); 2069e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 2079e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 2089e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger argc--; argv++; 2099e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 2109e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 21122fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger /* if (!ok) 2129e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return 0;*/ 2139e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 2148334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (!rate64) { 2159e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "\"rate\" is required.\n"); 2169e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 2179e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 2189e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger /* if ceil params are missing, use the same as rate */ 2198334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (!ceil64) 2208334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet ceil64 = rate64; 2218334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 2228334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet opt.rate.rate = (rate64 >= (1ULL << 32)) ? ~0U : rate64; 2238334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet opt.ceil.rate = (ceil64 >= (1ULL << 32)) ? ~0U : ceil64; 2249e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 2259e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger /* compute minimal allowed burst from rate; mtu is added here to make 2269e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger sute that buffer is larger than mtu and to have some safeguard space */ 2278334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (!buffer) 2288334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet buffer = rate64 / get_hz() + mtu; 2298334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (!cbuffer) 2308334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet cbuffer = ceil64 / get_hz() + mtu; 2319e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 232bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer opt.ceil.overhead = overhead; 233bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer opt.rate.overhead = overhead; 234bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer 235bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer opt.ceil.mpu = mpu; 236bccd014b866daa21002f7ac682cee57a9fe003e3Jesper Dangaard Brouer opt.rate.mpu = mpu; 237a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger 238292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer if (tc_calc_rtable(&opt.rate, rtab, cell_log, mtu, linklayer) < 0) { 2399e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "htb: failed to calculate rate table.\n"); 2409e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 2419e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 2428334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet opt.buffer = tc_calc_xmittime(rate64, buffer); 243ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger 244292f29b42c3444375b5ae7086484c99da7129d94Jesper Dangaard Brouer if (tc_calc_rtable(&opt.ceil, ctab, ccell_log, mtu, linklayer) < 0) { 2459e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(stderr, "htb: failed to calculate ceil rate table.\n"); 2469e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 2479e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 2488334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet opt.cbuffer = tc_calc_xmittime(ceil64, cbuffer); 2499e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 2501b52a7622ea8eda9980ce2dbe984985ac092d92an); tail = NLMSG_TAIL(n); 2519e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); 2528334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 2538334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (rate64 >= (1ULL << 32)) 2548334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet addattr_l(n, 1124, TCA_HTB_RATE64, &rate64, sizeof(rate64)); 2558334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 2568334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (ceil64 >= (1ULL << 32)) 2578334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet addattr_l(n, 1224, TCA_HTB_CEIL64, &ceil64, sizeof(ceil64)); 2588334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 2599e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger addattr_l(n, 2024, TCA_HTB_PARMS, &opt, sizeof(opt)); 2609e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger addattr_l(n, 3024, TCA_HTB_RTAB, rtab, 1024); 2619e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger addattr_l(n, 4024, TCA_HTB_CTAB, ctab, 1024); 2621b52a7622ea8eda9980ce2dbe984985ac092d92avoid *) NLMSG_TAIL(n) - (void *) tail; tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; 2639e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return 0; 2649e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger} 2659e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 2669e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemmingerstatic int htb_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) 2679e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger{ 268b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet struct rtattr *tb[TCA_HTB_MAX + 1]; 2699e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger struct tc_htb_opt *hopt; 2709e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger struct tc_htb_glob *gopt; 2719e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger double buffer,cbuffer; 2723e92ff522ac2d634b21a3cd9c4d1de278532f0adJesper Dangaard Brouer unsigned int linklayer; 2738334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet __u64 rate64, ceil64; 2749e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger SPRINT_BUF(b1); 2759e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger SPRINT_BUF(b2); 276a166d246d84e7d0ba784e210515708006e16a366osdl.net!shemminger SPRINT_BUF(b3); 2773e92ff522ac2d634b21a3cd9c4d1de278532f0adJesper Dangaard Brouer SPRINT_BUF(b4); 2789e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 2799e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (opt == NULL) 2809e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return 0; 2819e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 282b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet parse_rtattr_nested(tb, TCA_HTB_MAX, opt); 2839e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 2849e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (tb[TCA_HTB_PARMS]) { 28522fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger hopt = RTA_DATA(tb[TCA_HTB_PARMS]); 28622fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (RTA_PAYLOAD(tb[TCA_HTB_PARMS]) < sizeof(*hopt)) return -1; 2879e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 2889e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (!hopt->level) { 2899e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(f, "prio %d ", (int)hopt->prio); 2909e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (show_details) 2919e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(f, "quantum %d ", (int)hopt->quantum); 2929e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 2938334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 2948334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet rate64 = hopt->rate.rate; 2958334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (tb[TCA_HTB_RATE64] && 2968334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet RTA_PAYLOAD(tb[TCA_HTB_RATE64]) >= sizeof(rate64)) { 2978334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet rate64 = rta_getattr_u64(tb[TCA_HTB_RATE64]); 2988334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet } 2998334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 3008334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet ceil64 = hopt->ceil.rate; 3018334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet if (tb[TCA_HTB_CEIL64] && 3028334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet RTA_PAYLOAD(tb[TCA_HTB_CEIL64]) >= sizeof(ceil64)) 3038334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet ceil64 = rta_getattr_u64(tb[TCA_HTB_CEIL64]); 3048334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 3058334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet fprintf(f, "rate %s ", sprint_rate(rate64, b1)); 30622fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (hopt->rate.overhead) 30722fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "overhead %u ", hopt->rate.overhead); 3088334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet buffer = tc_calc_xmitsize(rate64, hopt->buffer); 3098334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet 3108334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet fprintf(f, "ceil %s ", sprint_rate(ceil64, b1)); 3118334bb325d5178483a3063c5f06858b46d993dc7Eric Dumazet cbuffer = tc_calc_xmitsize(ceil64, hopt->cbuffer); 3123e92ff522ac2d634b21a3cd9c4d1de278532f0adJesper Dangaard Brouer linklayer = (hopt->rate.linklayer & TC_LINKLAYER_MASK); 3133e92ff522ac2d634b21a3cd9c4d1de278532f0adJesper Dangaard Brouer if (linklayer > TC_LINKLAYER_ETHERNET || show_details) 3143e92ff522ac2d634b21a3cd9c4d1de278532f0adJesper Dangaard Brouer fprintf(f, "linklayer %s ", sprint_linklayer(linklayer, b4)); 31522fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (show_details) { 31622fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "burst %s/%u mpu %s overhead %s ", 31722fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger sprint_size(buffer, b1), 31822fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger 1<<hopt->rate.cell_log, 31922fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger sprint_size(hopt->rate.mpu&0xFF, b2), 32022fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger sprint_size((hopt->rate.mpu>>8)&0xFF, b3)); 32122fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "cburst %s/%u mpu %s overhead %s ", 32222fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger sprint_size(cbuffer, b1), 32322fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger 1<<hopt->ceil.cell_log, 32422fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger sprint_size(hopt->ceil.mpu&0xFF, b2), 32522fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger sprint_size((hopt->ceil.mpu>>8)&0xFF, b3)); 32622fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "level %d ", (int)hopt->level); 32722fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger } else { 32822fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "burst %s ", sprint_size(buffer, b1)); 32922fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "cburst %s ", sprint_size(cbuffer, b1)); 33022fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger } 33122fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (show_raw) 33222fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "buffer [%08x] cbuffer [%08x] ", 33322fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger hopt->buffer,hopt->cbuffer); 3349e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 3359e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (tb[TCA_HTB_INIT]) { 33622fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger gopt = RTA_DATA(tb[TCA_HTB_INIT]); 33722fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger if (RTA_PAYLOAD(tb[TCA_HTB_INIT]) < sizeof(*gopt)) return -1; 3389e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 33922fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger fprintf(f, "r2q %d default %x direct_packets_stat %u", 34022fa92e3671ccf5165ee1582641054a58bb9718cStephen Hemminger gopt->rate2quantum,gopt->defcls,gopt->direct_pkts); 3419e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (show_details) 3429e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(f," ver %d.%d",gopt->version >> 16,gopt->version & 0xffff); 3439e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger } 344b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet if (tb[TCA_HTB_DIRECT_QLEN] && 345b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet RTA_PAYLOAD(tb[TCA_HTB_DIRECT_QLEN]) >= sizeof(__u32)) { 346b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet __u32 direct_qlen = rta_getattr_u32(tb[TCA_HTB_DIRECT_QLEN]); 347b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet 348b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet fprintf(f, " direct_qlen %u", direct_qlen); 349b43f3318280a7b4b8c110d8fef7d5e6ebf2843fdEric Dumazet } 3509e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return 0; 3519e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger} 3529e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 3539e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemmingerstatic int htb_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats) 3549e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger{ 3559e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger struct tc_htb_xstats *st; 3569e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (xstats == NULL) 3579e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return 0; 3589e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 3599e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger if (RTA_PAYLOAD(xstats) < sizeof(*st)) 3609e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return -1; 3619e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 3629e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger st = RTA_DATA(xstats); 363ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger fprintf(f, " lended: %u borrowed: %u giants: %u\n", 3649e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger st->lends,st->borrows,st->giants); 3659e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger fprintf(f, " tokens: %d ctokens: %d\n", st->tokens,st->ctokens); 3669e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger return 0; 3679e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger} 3689e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger 36995812b56a5a66e7e9a21744cfe8bc0bb9791ea98net[shemminger]!kaberstruct qdisc_util htb_qdisc_util = { 370f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .id = "htb", 371f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .parse_qopt = htb_parse_opt, 372f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .print_qopt = htb_print_opt, 373f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .print_xstats = htb_print_xstats, 374f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .parse_copt = htb_parse_class_opt, 375f2f99e2eefdbd9cb6a750b19a7b3036db351b983osdl.net!shemminger .print_copt = htb_print_opt, 3769e9d615e32c1e0677d2c32619253eabb331ff307org[shemminger]!shemminger}; 377