1187769Sluigi/* 2301772Struckman * Codel/FQ_Codel and PIE/FQ_PIE Code: 3301772Struckman * Copyright (C) 2016 Centre for Advanced Internet Architectures, 4301772Struckman * Swinburne University of Technology, Melbourne, Australia. 5301772Struckman * Portions of this code were made possible in part by a gift from 6301772Struckman * The Comcast Innovation Fund. 7301772Struckman * Implemented by Rasool Al-Saadi <ralsaadi@swin.edu.au> 8301772Struckman * 9204591Sluigi * Copyright (c) 2002-2003,2010 Luigi Rizzo 10187769Sluigi * 11187769Sluigi * Redistribution and use in source forms, with and without modification, 12187769Sluigi * are permitted provided that this entire comment appears intact. 13187769Sluigi * 14187769Sluigi * Redistribution in binary form may occur without any restrictions. 15187769Sluigi * Obviously, it would be nice if you gave credit where credit is due 16187769Sluigi * but requiring it would be too onerous. 17187769Sluigi * 18187769Sluigi * This software is provided ``AS IS'' without any warranties of any kind. 19187769Sluigi * 20187769Sluigi * $FreeBSD: stable/10/sbin/ipfw/dummynet.c 320782 2017-07-07 15:35:42Z asomers $ 21187769Sluigi * 22187769Sluigi * dummynet support 23187769Sluigi */ 24187769Sluigi 25301772Struckman#define NEW_AQM 26187769Sluigi#include <sys/types.h> 27187769Sluigi#include <sys/socket.h> 28187983Sluigi/* XXX there are several sysctl leftover here */ 29187769Sluigi#include <sys/sysctl.h> 30187769Sluigi 31187769Sluigi#include "ipfw2.h" 32187769Sluigi 33301772Struckman#ifdef NEW_AQM 34301772Struckman#include <stdint.h> 35301772Struckman#endif 36301772Struckman 37187769Sluigi#include <ctype.h> 38187769Sluigi#include <err.h> 39194930Soleg#include <errno.h> 40194930Soleg#include <libutil.h> 41187769Sluigi#include <netdb.h> 42187769Sluigi#include <stdio.h> 43187769Sluigi#include <stdlib.h> 44187769Sluigi#include <string.h> 45187769Sluigi#include <sysexits.h> 46187769Sluigi 47187769Sluigi#include <net/if.h> 48187769Sluigi#include <netinet/in.h> 49187769Sluigi#include <netinet/ip_fw.h> 50187769Sluigi#include <netinet/ip_dummynet.h> 51187983Sluigi#include <arpa/inet.h> /* inet_ntoa */ 52187769Sluigi 53204591Sluigi 54187769Sluigistatic struct _s_x dummynet_params[] = { 55187769Sluigi { "plr", TOK_PLR }, 56187769Sluigi { "noerror", TOK_NOERROR }, 57187769Sluigi { "buckets", TOK_BUCKETS }, 58187769Sluigi { "dst-ip", TOK_DSTIP }, 59187769Sluigi { "src-ip", TOK_SRCIP }, 60187769Sluigi { "dst-port", TOK_DSTPORT }, 61187769Sluigi { "src-port", TOK_SRCPORT }, 62187769Sluigi { "proto", TOK_PROTO }, 63187769Sluigi { "weight", TOK_WEIGHT }, 64204591Sluigi { "lmax", TOK_LMAX }, 65204591Sluigi { "maxlen", TOK_LMAX }, 66187769Sluigi { "all", TOK_ALL }, 67204591Sluigi { "mask", TOK_MASK }, /* alias for both */ 68204591Sluigi { "sched_mask", TOK_SCHED_MASK }, 69204591Sluigi { "flow_mask", TOK_FLOW_MASK }, 70187769Sluigi { "droptail", TOK_DROPTAIL }, 71301231Struckman { "ecn", TOK_ECN }, 72187769Sluigi { "red", TOK_RED }, 73187769Sluigi { "gred", TOK_GRED }, 74301772Struckman#ifdef NEW_AQM 75301772Struckman { "codel", TOK_CODEL}, /* Codel AQM */ 76301772Struckman { "fq_codel", TOK_FQ_CODEL}, /* FQ-Codel */ 77301772Struckman { "pie", TOK_PIE}, /* PIE AQM */ 78301772Struckman { "fq_pie", TOK_FQ_PIE}, /* FQ-PIE */ 79301772Struckman#endif 80187769Sluigi { "bw", TOK_BW }, 81187769Sluigi { "bandwidth", TOK_BW }, 82187769Sluigi { "delay", TOK_DELAY }, 83204591Sluigi { "link", TOK_LINK }, 84187769Sluigi { "pipe", TOK_PIPE }, 85187769Sluigi { "queue", TOK_QUEUE }, 86204591Sluigi { "flowset", TOK_FLOWSET }, 87204591Sluigi { "sched", TOK_SCHED }, 88204591Sluigi { "pri", TOK_PRI }, 89204591Sluigi { "priority", TOK_PRI }, 90204591Sluigi { "type", TOK_TYPE }, 91187769Sluigi { "flow-id", TOK_FLOWID}, 92187769Sluigi { "dst-ipv6", TOK_DSTIP6}, 93187769Sluigi { "dst-ip6", TOK_DSTIP6}, 94187769Sluigi { "src-ipv6", TOK_SRCIP6}, 95187769Sluigi { "src-ip6", TOK_SRCIP6}, 96204591Sluigi { "profile", TOK_PROFILE}, 97194930Soleg { "burst", TOK_BURST}, 98187769Sluigi { "dummynet-params", TOK_NULL }, 99187769Sluigi { NULL, 0 } /* terminator */ 100187769Sluigi}; 101187769Sluigi 102301772Struckman#ifdef NEW_AQM 103301772Struckman/* AQM/extra sched parameters tokens*/ 104301772Struckmanstatic struct _s_x aqm_params[] = { 105301772Struckman { "target", TOK_TARGET}, 106301772Struckman { "interval", TOK_INTERVAL}, 107301772Struckman { "limit", TOK_LIMIT}, 108301772Struckman { "flows", TOK_FLOWS}, 109301772Struckman { "quantum", TOK_QUANTUM}, 110301772Struckman { "ecn", TOK_ECN}, 111301772Struckman { "noecn", TOK_NO_ECN}, 112301772Struckman { "tupdate", TOK_TUPDATE}, 113301772Struckman { "max_burst", TOK_MAX_BURST}, 114301772Struckman { "max_ecnth", TOK_MAX_ECNTH}, 115301772Struckman { "alpha", TOK_ALPHA}, 116301772Struckman { "beta", TOK_BETA}, 117301772Struckman { "capdrop", TOK_CAPDROP}, 118301772Struckman { "nocapdrop", TOK_NO_CAPDROP}, 119301772Struckman { "onoff", TOK_ONOFF}, 120301772Struckman { "dre", TOK_DRE}, 121301772Struckman { "ts", TOK_TS}, 122301772Struckman { "derand", TOK_DERAND}, 123301772Struckman { "noderand", TOK_NO_DERAND}, 124301772Struckman { NULL, 0 } /* terminator */ 125301772Struckman}; 126301772Struckman#endif 127301772Struckman 128204591Sluigi#define O_NEXT(p, len) ((void *)((char *)p + len)) 129204591Sluigi 130204591Sluigistatic void 131204591Sluigioid_fill(struct dn_id *oid, int len, int type, uintptr_t id) 132204591Sluigi{ 133204591Sluigi oid->len = len; 134204591Sluigi oid->type = type; 135204591Sluigi oid->subtype = 0; 136204591Sluigi oid->id = id; 137204591Sluigi} 138204591Sluigi 139204591Sluigi/* make room in the buffer and move the pointer forward */ 140204591Sluigistatic void * 141204591Sluigio_next(struct dn_id **o, int len, int type) 142204591Sluigi{ 143204591Sluigi struct dn_id *ret = *o; 144204591Sluigi oid_fill(ret, len, type, 0); 145204591Sluigi *o = O_NEXT(*o, len); 146204591Sluigi return ret; 147204591Sluigi} 148204591Sluigi 149301772Struckman#ifdef NEW_AQM 150301772Struckman 151301772Struckman/* Codel flags */ 152301772Struckmanenum { 153301772Struckman CODEL_ECN_ENABLED = 1 154301772Struckman}; 155301772Struckman 156301772Struckman/* PIE flags, from PIE kernel module */ 157301772Struckmanenum { 158301772Struckman PIE_ECN_ENABLED = 1, 159301772Struckman PIE_CAPDROP_ENABLED = 2, 160301772Struckman PIE_ON_OFF_MODE_ENABLED = 4, 161301772Struckman PIE_DEPRATEEST_ENABLED = 8, 162301772Struckman PIE_DERAND_ENABLED = 16 163301772Struckman}; 164301772Struckman 165301772Struckman#define PIE_FIX_POINT_BITS 13 166301772Struckman#define PIE_SCALE (1L<<PIE_FIX_POINT_BITS) 167301772Struckman 168301772Struckman/* integer to time */ 169301772Struckmanvoid 170301772Struckmanus_to_time(int t,char *strt) 171301772Struckman{ 172301772Struckman if (t < 0) 173301772Struckman strt[0]='\0'; 174301772Struckman else if ( t==0 ) 175301772Struckman sprintf(strt,"%d", t); 176301772Struckman else if (t< 1000) 177301772Struckman sprintf(strt,"%dus", t); 178301772Struckman else if (t < 1000000) 179301772Struckman sprintf(strt,"%gms", (float) t / 1000); 180301772Struckman else 181301772Struckman sprintf(strt,"%gfs", (float) t / 1000000); 182301772Struckman} 183301772Struckman 184301772Struckman/* 185301772Struckman * returns -1 if s is not a valid time, otherwise, return time in us 186301772Struckman */ 187301772Struckmanstatic long 188301772Struckmantime_to_us(const char *s) 189301772Struckman{ 190301772Struckman int i, dots = 0; 191301772Struckman int len = strlen(s); 192301772Struckman char strt[16]="", stru[16]=""; 193301772Struckman 194301772Struckman if (len>15) 195301772Struckman return -1; 196301772Struckman for (i = 0; i<len && (isdigit(s[i]) || s[i]=='.') ; i++) 197301772Struckman if (s[i]=='.') { 198301772Struckman if (dots) 199301772Struckman return -1; 200301772Struckman else 201301772Struckman dots++; 202301772Struckman } 203301772Struckman 204301772Struckman if (!i) 205301772Struckman return -1; 206301772Struckman strncpy(strt, s, i); 207301772Struckman if (i<len) 208301772Struckman strcpy(stru, s+i); 209301772Struckman else 210301772Struckman strcpy(stru, "ms"); 211301772Struckman 212301772Struckman if (!strcasecmp(stru, "us")) 213301772Struckman return atol(strt); 214301772Struckman if (!strcasecmp(stru, "ms")) 215301772Struckman return (strtod(strt, NULL) * 1000); 216301772Struckman if (!strcasecmp(stru, "s")) 217301772Struckman return (strtod(strt, NULL)*1000000); 218301772Struckman 219301772Struckman return -1; 220301772Struckman} 221301772Struckman 222301772Struckman 223301772Struckman/* Get AQM or scheduler extra parameters */ 224301772Struckmanvoid 225301772Struckmanget_extra_parms(uint32_t nr, char *out, int subtype) 226301772Struckman{ 227301772Struckman struct dn_extra_parms *ep; 228301772Struckman int ret; 229301772Struckman char strt1[15], strt2[15], strt3[15]; 230301772Struckman u_int l; 231301772Struckman 232301772Struckman /* prepare the request */ 233301772Struckman l = sizeof(struct dn_extra_parms); 234301772Struckman ep = safe_calloc(1, l); 235301772Struckman memset(ep, 0, sizeof(*ep)); 236301772Struckman *out = '\0'; 237301772Struckman 238301772Struckman oid_fill(&ep->oid, l, DN_CMD_GET, DN_API_VERSION); 239301772Struckman ep->oid.len = l; 240301772Struckman ep->oid.subtype = subtype; 241301772Struckman ep->nr = nr; 242301772Struckman 243301772Struckman ret = do_cmd(-IP_DUMMYNET3, ep, (uintptr_t)&l); 244301772Struckman if (ret) { 245301772Struckman free(ep); 246301772Struckman errx(EX_DATAERR, "Error getting extra parameters\n"); 247301772Struckman } 248301772Struckman 249301772Struckman switch (subtype) { 250301772Struckman case DN_AQM_PARAMS: 251301772Struckman if( !strcasecmp(ep->name, "codel")) { 252301772Struckman us_to_time(ep->par[0], strt1); 253301772Struckman us_to_time(ep->par[1], strt2); 254301772Struckman l = sprintf(out, " AQM CoDel target %s interval %s", 255301772Struckman strt1, strt2); 256301772Struckman if (ep->par[2] & CODEL_ECN_ENABLED) 257301772Struckman l = sprintf(out + l, " ECN"); 258301772Struckman else 259301772Struckman l += sprintf(out + l, " NoECN"); 260301772Struckman } else if( !strcasecmp(ep->name, "pie")) { 261301772Struckman us_to_time(ep->par[0], strt1); 262301772Struckman us_to_time(ep->par[1], strt2); 263301772Struckman us_to_time(ep->par[2], strt3); 264301772Struckman l = sprintf(out, " AQM type PIE target %s tupdate %s alpha " 265301772Struckman "%g beta %g max_burst %s max_ecnth %.3g", 266301772Struckman strt1, 267301772Struckman strt2, 268301772Struckman ep->par[4] / (float) PIE_SCALE, 269301772Struckman ep->par[5] / (float) PIE_SCALE, 270301772Struckman strt3, 271301772Struckman ep->par[3] / (float) PIE_SCALE 272301772Struckman ); 273301772Struckman 274301772Struckman if (ep->par[6] & PIE_ECN_ENABLED) 275301772Struckman l += sprintf(out + l, " ECN"); 276301772Struckman else 277301772Struckman l += sprintf(out + l, " NoECN"); 278301772Struckman if (ep->par[6] & PIE_CAPDROP_ENABLED) 279301772Struckman l += sprintf(out + l, " CapDrop"); 280301772Struckman else 281301772Struckman l += sprintf(out + l, " NoCapDrop"); 282301772Struckman if (ep->par[6] & PIE_ON_OFF_MODE_ENABLED) 283301772Struckman l += sprintf(out + l, " OnOff"); 284301772Struckman if (ep->par[6] & PIE_DEPRATEEST_ENABLED) 285301772Struckman l += sprintf(out + l, " DRE"); 286301772Struckman else 287301772Struckman l += sprintf(out + l, " TS"); 288301772Struckman if (ep->par[6] & PIE_DERAND_ENABLED) 289301772Struckman l += sprintf(out + l, " Derand"); 290301772Struckman else 291301772Struckman l += sprintf(out + l, " NoDerand"); 292301772Struckman } 293301772Struckman break; 294301772Struckman 295301772Struckman case DN_SCH_PARAMS: 296301772Struckman if (!strcasecmp(ep->name,"FQ_CODEL")) { 297301772Struckman us_to_time(ep->par[0], strt1); 298301772Struckman us_to_time(ep->par[1], strt2); 299301772Struckman l = sprintf(out," FQ_CODEL target %s interval %s" 300301772Struckman " quantum %jd limit %jd flows %jd", 301301772Struckman strt1, strt2, 302301772Struckman (intmax_t) ep->par[3], 303301772Struckman (intmax_t) ep->par[4], 304301772Struckman (intmax_t) ep->par[5] 305301772Struckman ); 306301772Struckman if (ep->par[2] & CODEL_ECN_ENABLED) 307301772Struckman l += sprintf(out + l, " ECN"); 308301772Struckman else 309301772Struckman l += sprintf(out + l, " NoECN"); 310301772Struckman l += sprintf(out + l, "\n"); 311301772Struckman } else if (!strcasecmp(ep->name,"FQ_PIE")) { 312301772Struckman us_to_time(ep->par[0], strt1); 313301772Struckman us_to_time(ep->par[1], strt2); 314301772Struckman us_to_time(ep->par[2], strt3); 315301772Struckman l = sprintf(out, " FQ_PIE target %s tupdate %s alpha " 316301772Struckman "%g beta %g max_burst %s max_ecnth %.3g" 317301772Struckman " quantum %jd limit %jd flows %jd", 318301772Struckman strt1, 319301772Struckman strt2, 320301772Struckman ep->par[4] / (float) PIE_SCALE, 321301772Struckman ep->par[5] / (float) PIE_SCALE, 322301772Struckman strt3, 323301772Struckman ep->par[3] / (float) PIE_SCALE, 324301772Struckman (intmax_t) ep->par[7], 325301772Struckman (intmax_t) ep->par[8], 326301772Struckman (intmax_t) ep->par[9] 327301772Struckman ); 328301772Struckman 329301772Struckman if (ep->par[6] & PIE_ECN_ENABLED) 330301772Struckman l += sprintf(out + l, " ECN"); 331301772Struckman else 332301772Struckman l += sprintf(out + l, " NoECN"); 333301772Struckman if (ep->par[6] & PIE_CAPDROP_ENABLED) 334301772Struckman l += sprintf(out + l, " CapDrop"); 335301772Struckman else 336301772Struckman l += sprintf(out + l, " NoCapDrop"); 337301772Struckman if (ep->par[6] & PIE_ON_OFF_MODE_ENABLED) 338301772Struckman l += sprintf(out + l, " OnOff"); 339301772Struckman if (ep->par[6] & PIE_DEPRATEEST_ENABLED) 340301772Struckman l += sprintf(out + l, " DRE"); 341301772Struckman else 342301772Struckman l += sprintf(out + l, " TS"); 343301772Struckman if (ep->par[6] & PIE_DERAND_ENABLED) 344301772Struckman l += sprintf(out + l, " Derand"); 345301772Struckman else 346301772Struckman l += sprintf(out + l, " NoDerand"); 347301772Struckman l += sprintf(out + l, "\n"); 348301772Struckman } 349301772Struckman break; 350301772Struckman } 351301772Struckman 352301772Struckman free(ep); 353301772Struckman} 354301772Struckman#endif 355301772Struckman 356301772Struckman 357204591Sluigi#if 0 358187769Sluigistatic int 359200056Sluigisort_q(void *arg, const void *pa, const void *pb) 360187769Sluigi{ 361187769Sluigi int rev = (co.do_sort < 0); 362187769Sluigi int field = rev ? -co.do_sort : co.do_sort; 363187769Sluigi long long res = 0; 364187769Sluigi const struct dn_flow_queue *a = pa; 365187769Sluigi const struct dn_flow_queue *b = pb; 366187769Sluigi 367187769Sluigi switch (field) { 368187769Sluigi case 1: /* pkts */ 369187769Sluigi res = a->len - b->len; 370187769Sluigi break; 371187769Sluigi case 2: /* bytes */ 372187769Sluigi res = a->len_bytes - b->len_bytes; 373187769Sluigi break; 374187769Sluigi 375187769Sluigi case 3: /* tot pkts */ 376187769Sluigi res = a->tot_pkts - b->tot_pkts; 377187769Sluigi break; 378187769Sluigi 379187769Sluigi case 4: /* tot bytes */ 380187769Sluigi res = a->tot_bytes - b->tot_bytes; 381187769Sluigi break; 382187769Sluigi } 383187769Sluigi if (res < 0) 384187769Sluigi res = -1; 385187769Sluigi if (res > 0) 386187769Sluigi res = 1; 387187769Sluigi return (int)(rev ? res : -res); 388187769Sluigi} 389204591Sluigi#endif 390187769Sluigi 391204591Sluigi/* print a mask and header for the subsequent list of flows */ 392187769Sluigistatic void 393204591Sluigiprint_mask(struct ipfw_flow_id *id) 394187769Sluigi{ 395204591Sluigi if (!IS_IP6_FLOW_ID(id)) { 396204591Sluigi printf(" " 397205173Sluigi "mask: %s 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 398205173Sluigi id->extra ? "queue," : "", 399204591Sluigi id->proto, 400204591Sluigi id->src_ip, id->src_port, 401204591Sluigi id->dst_ip, id->dst_port); 402204591Sluigi } else { 403204591Sluigi char buf[255]; 404205173Sluigi printf("\n mask: %sproto: 0x%02x, flow_id: 0x%08x, ", 405205173Sluigi id->extra ? "queue," : "", 406204591Sluigi id->proto, id->flow_id6); 407204591Sluigi inet_ntop(AF_INET6, &(id->src_ip6), buf, sizeof(buf)); 408204591Sluigi printf("%s/0x%04x -> ", buf, id->src_port); 409204591Sluigi inet_ntop(AF_INET6, &(id->dst_ip6), buf, sizeof(buf)); 410204591Sluigi printf("%s/0x%04x\n", buf, id->dst_port); 411210118Sluigi } 412210118Sluigi} 413187769Sluigi 414210118Sluigistatic void 415210118Sluigiprint_header(struct ipfw_flow_id *id) 416210118Sluigi{ 417210118Sluigi if (!IS_IP6_FLOW_ID(id)) 418210118Sluigi printf("BKT Prot ___Source IP/port____ " 419210118Sluigi "____Dest. IP/port____ " 420210118Sluigi "Tot_pkt/bytes Pkt/Byte Drp\n"); 421210118Sluigi else 422204591Sluigi printf("BKT ___Prot___ _flow-id_ " 423204591Sluigi "______________Source IPv6/port_______________ " 424204591Sluigi "_______________Dest. IPv6/port_______________ " 425204591Sluigi "Tot_pkt/bytes Pkt/Byte Drp\n"); 426204591Sluigi} 427187769Sluigi 428204591Sluigistatic void 429210118Sluigilist_flow(struct dn_flow *ni, int *print) 430204591Sluigi{ 431204591Sluigi char buff[255]; 432210118Sluigi struct protoent *pe = NULL; 433204591Sluigi struct in_addr ina; 434204591Sluigi struct ipfw_flow_id *id = &ni->fid; 435187769Sluigi 436210118Sluigi if (*print) { 437210118Sluigi print_header(&ni->fid); 438210118Sluigi *print = 0; 439210118Sluigi } 440204591Sluigi pe = getprotobynumber(id->proto); 441187769Sluigi /* XXX: Should check for IPv4 flows */ 442205173Sluigi printf("%3u%c", (ni->oid.id) & 0xff, 443205173Sluigi id->extra ? '*' : ' '); 444204591Sluigi if (!IS_IP6_FLOW_ID(id)) { 445187769Sluigi if (pe) 446187769Sluigi printf("%-4s ", pe->p_name); 447187769Sluigi else 448204591Sluigi printf("%4u ", id->proto); 449204591Sluigi ina.s_addr = htonl(id->src_ip); 450187769Sluigi printf("%15s/%-5d ", 451204591Sluigi inet_ntoa(ina), id->src_port); 452204591Sluigi ina.s_addr = htonl(id->dst_ip); 453187769Sluigi printf("%15s/%-5d ", 454204591Sluigi inet_ntoa(ina), id->dst_port); 455204591Sluigi } else { 456204591Sluigi /* Print IPv6 flows */ 457187769Sluigi if (pe != NULL) 458187769Sluigi printf("%9s ", pe->p_name); 459187769Sluigi else 460204591Sluigi printf("%9u ", id->proto); 461204591Sluigi printf("%7d %39s/%-5d ", id->flow_id6, 462204591Sluigi inet_ntop(AF_INET6, &(id->src_ip6), buff, sizeof(buff)), 463204591Sluigi id->src_port); 464187769Sluigi printf(" %39s/%-5d ", 465204591Sluigi inet_ntop(AF_INET6, &(id->dst_ip6), buff, sizeof(buff)), 466204591Sluigi id->dst_port); 467187769Sluigi } 468206843Sluigi pr_u64(&ni->tot_pkts, 4); 469206843Sluigi pr_u64(&ni->tot_bytes, 8); 470206843Sluigi printf("%2u %4u %3u\n", 471204591Sluigi ni->length, ni->len_bytes, ni->drops); 472187769Sluigi} 473187769Sluigi 474187769Sluigistatic void 475204591Sluigiprint_flowset_parms(struct dn_fs *fs, char *prefix) 476187769Sluigi{ 477187769Sluigi int l; 478187769Sluigi char qs[30]; 479187769Sluigi char plr[30]; 480301772Struckman char red[200]; /* Display RED parameters */ 481187769Sluigi 482187769Sluigi l = fs->qsize; 483204591Sluigi if (fs->flags & DN_QSIZE_BYTES) { 484187769Sluigi if (l >= 8192) 485187769Sluigi sprintf(qs, "%d KB", l / 1024); 486187769Sluigi else 487187769Sluigi sprintf(qs, "%d B", l); 488187769Sluigi } else 489187769Sluigi sprintf(qs, "%3d sl.", l); 490187769Sluigi if (fs->plr) 491187769Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 492187769Sluigi else 493187769Sluigi plr[0] = '\0'; 494204591Sluigi 495301231Struckman if (fs->flags & DN_IS_RED) { /* RED parameters */ 496187769Sluigi sprintf(red, 497194930Soleg "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 498204591Sluigi (fs->flags & DN_IS_GENTLE_RED) ? 'G' : ' ', 499187769Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 500204591Sluigi fs->min_th, 501204591Sluigi fs->max_th, 502187769Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 503301231Struckman if (fs->flags & DN_IS_ECN) 504301231Struckman strncat(red, " (ecn)", 6); 505301772Struckman#ifdef NEW_AQM 506301772Struckman /* get AQM parameters */ 507301772Struckman } else if (fs->flags & DN_IS_AQM) { 508301772Struckman get_extra_parms(fs->fs_nr, red, DN_AQM_PARAMS); 509301772Struckman#endif 510301231Struckman } else 511187769Sluigi sprintf(red, "droptail"); 512187769Sluigi 513204591Sluigi if (prefix[0]) { 514204591Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 515204591Sluigi prefix, qs, plr, fs->oid.id, fs->buckets, red); 516204591Sluigi prefix[0] = '\0'; 517204591Sluigi } else { 518204591Sluigi printf("q%05d %s%s %d flows (%d buckets) sched %d " 519204591Sluigi "weight %d lmax %d pri %d %s\n", 520204591Sluigi fs->fs_nr, qs, plr, fs->oid.id, fs->buckets, 521204591Sluigi fs->sched_nr, fs->par[0], fs->par[1], fs->par[2], red); 522204591Sluigi if (fs->flags & DN_HAVE_MASK) 523204591Sluigi print_mask(&fs->flow_mask); 524204591Sluigi } 525187769Sluigi} 526187769Sluigi 527190865Sluigistatic void 528204591Sluigiprint_extra_delay_parms(struct dn_profile *p) 529190865Sluigi{ 530190865Sluigi double loss; 531190865Sluigi if (p->samples_no <= 0) 532190865Sluigi return; 533190865Sluigi 534190865Sluigi loss = p->loss_level; 535190865Sluigi loss /= p->samples_no; 536194930Soleg printf("\t profile: name \"%s\" loss %f samples %d\n", 537194930Soleg p->name, loss, p->samples_no); 538190865Sluigi} 539190865Sluigi 540204591Sluigistatic void 541204591Sluigiflush_buf(char *buf) 542187769Sluigi{ 543204591Sluigi if (buf[0]) 544204591Sluigi printf("%s\n", buf); 545204591Sluigi buf[0] = '\0'; 546204591Sluigi} 547220804Sglebius 548204591Sluigi/* 549204591Sluigi * generic list routine. We expect objects in a specific order, i.e. 550204591Sluigi * PIPES AND SCHEDULERS: 551204591Sluigi * link; scheduler; internal flowset if any; instances 552204591Sluigi * we can tell a pipe from the number. 553204591Sluigi * 554204591Sluigi * FLOWSETS: 555204591Sluigi * flowset; queues; 556204591Sluigi * link i (int queue); scheduler i; si(i) { flowsets() : queues } 557204591Sluigi */ 558204591Sluigistatic void 559204591Sluigilist_pipes(struct dn_id *oid, struct dn_id *end) 560204591Sluigi{ 561204591Sluigi char buf[160]; /* pending buffer */ 562210118Sluigi int toPrint = 1; /* print header */ 563206843Sluigi 564204591Sluigi buf[0] = '\0'; 565204591Sluigi for (; oid != end; oid = O_NEXT(oid, oid->len)) { 566204591Sluigi if (oid->len < sizeof(*oid)) 567204591Sluigi errx(1, "invalid oid len %d\n", oid->len); 568187769Sluigi 569204591Sluigi switch (oid->type) { 570204591Sluigi default: 571204591Sluigi flush_buf(buf); 572204591Sluigi printf("unrecognized object %d size %d\n", oid->type, oid->len); 573204591Sluigi break; 574204591Sluigi case DN_TEXT: /* list of attached flowsets */ 575204591Sluigi { 576204591Sluigi int i, l; 577204591Sluigi struct { 578204591Sluigi struct dn_id id; 579204591Sluigi uint32_t p[0]; 580204591Sluigi } *d = (void *)oid; 581204591Sluigi l = (oid->len - sizeof(*oid))/sizeof(d->p[0]); 582204591Sluigi if (l == 0) 583204591Sluigi break; 584204591Sluigi printf(" Children flowsets: "); 585204591Sluigi for (i = 0; i < l; i++) 586204591Sluigi printf("%u ", d->p[i]); 587204591Sluigi printf("\n"); 588204591Sluigi break; 589204591Sluigi } 590204591Sluigi case DN_CMD_GET: 591204591Sluigi if (co.verbose) 592204591Sluigi printf("answer for cmd %d, len %d\n", oid->type, oid->id); 593204591Sluigi break; 594204591Sluigi case DN_SCH: { 595204591Sluigi struct dn_sch *s = (struct dn_sch *)oid; 596204591Sluigi flush_buf(buf); 597204591Sluigi printf(" sched %d type %s flags 0x%x %d buckets %d active\n", 598204591Sluigi s->sched_nr, 599204591Sluigi s->name, s->flags, s->buckets, s->oid.id); 600301772Struckman#ifdef NEW_AQM 601301772Struckman char parms[200]; 602301772Struckman get_extra_parms(s->sched_nr, parms, DN_SCH_PARAMS); 603301772Struckman printf("%s",parms); 604301772Struckman#endif 605204591Sluigi if (s->flags & DN_HAVE_MASK) 606204591Sluigi print_mask(&s->sched_mask); 607204591Sluigi } 608204591Sluigi break; 609187769Sluigi 610204591Sluigi case DN_FLOW: 611210118Sluigi list_flow((struct dn_flow *)oid, &toPrint); 612204591Sluigi break; 613187769Sluigi 614204591Sluigi case DN_LINK: { 615204591Sluigi struct dn_link *p = (struct dn_link *)oid; 616204591Sluigi double b = p->bandwidth; 617204591Sluigi char bwbuf[30]; 618204591Sluigi char burst[5 + 7]; 619187769Sluigi 620204591Sluigi /* This starts a new object so flush buffer */ 621204591Sluigi flush_buf(buf); 622204591Sluigi /* data rate */ 623204591Sluigi if (b == 0) 624204591Sluigi sprintf(bwbuf, "unlimited "); 625204591Sluigi else if (b >= 1000000) 626204591Sluigi sprintf(bwbuf, "%7.3f Mbit/s", b/1000000); 627204591Sluigi else if (b >= 1000) 628204591Sluigi sprintf(bwbuf, "%7.3f Kbit/s", b/1000); 629204591Sluigi else 630204591Sluigi sprintf(bwbuf, "%7.3f bit/s ", b); 631187769Sluigi 632204591Sluigi if (humanize_number(burst, sizeof(burst), p->burst, 633204591Sluigi "", HN_AUTOSCALE, 0) < 0 || co.verbose) 634204591Sluigi sprintf(burst, "%d", (int)p->burst); 635204591Sluigi sprintf(buf, "%05d: %s %4d ms burst %s", 636204591Sluigi p->link_nr % DN_MAX_ID, bwbuf, p->delay, burst); 637204591Sluigi } 638204591Sluigi break; 639190865Sluigi 640204591Sluigi case DN_FS: 641204591Sluigi print_flowset_parms((struct dn_fs *)oid, buf); 642204591Sluigi break; 643204591Sluigi case DN_PROFILE: 644204591Sluigi flush_buf(buf); 645204591Sluigi print_extra_delay_parms((struct dn_profile *)oid); 646187769Sluigi } 647204591Sluigi flush_buf(buf); // XXX does it really go here ? 648204591Sluigi } 649187769Sluigi} 650187769Sluigi 651187769Sluigi/* 652204591Sluigi * Delete pipe, queue or scheduler i 653187769Sluigi */ 654187769Sluigiint 655204591Sluigiipfw_delete_pipe(int do_pipe, int i) 656187769Sluigi{ 657204591Sluigi struct { 658204591Sluigi struct dn_id oid; 659204591Sluigi uintptr_t a[1]; /* add more if we want a list */ 660204591Sluigi } cmd; 661204591Sluigi oid_fill((void *)&cmd, sizeof(cmd), DN_CMD_DELETE, DN_API_VERSION); 662204591Sluigi cmd.oid.subtype = (do_pipe == 1) ? DN_LINK : 663204591Sluigi ( (do_pipe == 2) ? DN_FS : DN_SCH); 664204591Sluigi cmd.a[0] = i; 665204591Sluigi i = do_cmd(IP_DUMMYNET3, &cmd, cmd.oid.len); 666187769Sluigi if (i) { 667187769Sluigi i = 1; 668187769Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", i); 669187769Sluigi } 670187769Sluigi return i; 671187769Sluigi} 672187769Sluigi 673190865Sluigi/* 674190865Sluigi * Code to parse delay profiles. 675190865Sluigi * 676190865Sluigi * Some link types introduce extra delays in the transmission 677190865Sluigi * of a packet, e.g. because of MAC level framing, contention on 678190865Sluigi * the use of the channel, MAC level retransmissions and so on. 679190865Sluigi * From our point of view, the channel is effectively unavailable 680190865Sluigi * for this extra time, which is constant or variable depending 681190865Sluigi * on the link type. Additionally, packets may be dropped after this 682190865Sluigi * time (e.g. on a wireless link after too many retransmissions). 683190865Sluigi * We can model the additional delay with an empirical curve 684190865Sluigi * that represents its distribution. 685190865Sluigi * 686220802Sglebius * cumulative probability 687220802Sglebius * 1.0 ^ 688220802Sglebius * | 689220802Sglebius * L +-- loss-level x 690220802Sglebius * | ****** 691220802Sglebius * | * 692220802Sglebius * | ***** 693220802Sglebius * | * 694220802Sglebius * | ** 695220802Sglebius * | * 696220802Sglebius * +-------*-------------------> 697220802Sglebius * delay 698190865Sluigi * 699190865Sluigi * The empirical curve may have both vertical and horizontal lines. 700190865Sluigi * Vertical lines represent constant delay for a range of 701190865Sluigi * probabilities; horizontal lines correspond to a discontinuty 702204591Sluigi * in the delay distribution: the link will use the largest delay 703190865Sluigi * for a given probability. 704220802Sglebius * 705190865Sluigi * To pass the curve to dummynet, we must store the parameters 706190865Sluigi * in a file as described below, and issue the command 707190865Sluigi * 708190865Sluigi * ipfw pipe <n> config ... bw XXX profile <filename> ... 709190865Sluigi * 710190865Sluigi * The file format is the following, with whitespace acting as 711190865Sluigi * a separator and '#' indicating the beginning a comment: 712190865Sluigi * 713190865Sluigi * samples N 714190865Sluigi * the number of samples used in the internal 715190865Sluigi * representation (2..1024; default 100); 716190865Sluigi * 717220802Sglebius * loss-level L 718190865Sluigi * The probability above which packets are lost. 719220802Sglebius * (0.0 <= L <= 1.0, default 1.0 i.e. no loss); 720190865Sluigi * 721190865Sluigi * name identifier 722190865Sluigi * Optional a name (listed by "ipfw pipe show") 723190865Sluigi * to identify the distribution; 724190865Sluigi * 725190865Sluigi * "delay prob" | "prob delay" 726190865Sluigi * One of these two lines is mandatory and defines 727190865Sluigi * the format of the following lines with data points. 728190865Sluigi * 729190865Sluigi * XXX YYY 730190865Sluigi * 2 or more lines representing points in the curve, 731190865Sluigi * with either delay or probability first, according 732190865Sluigi * to the chosen format. 733190865Sluigi * The unit for delay is milliseconds. 734190865Sluigi * 735190865Sluigi * Data points does not need to be ordered or equal to the number 736190865Sluigi * specified in the "samples" line. ipfw will sort and interpolate 737190865Sluigi * the curve as needed. 738190865Sluigi * 739190865Sluigi * Example of a profile file: 740220802Sglebius 741220802Sglebius name bla_bla_bla 742220802Sglebius samples 100 743220802Sglebius loss-level 0.86 744220802Sglebius prob delay 745220802Sglebius 0 200 # minimum overhead is 200ms 746220802Sglebius 0.5 200 747220802Sglebius 0.5 300 748220802Sglebius 0.8 1000 749220802Sglebius 0.9 1300 750220802Sglebius 1 1300 751220802Sglebius 752190865Sluigi * Internally, we will convert the curve to a fixed number of 753190865Sluigi * samples, and when it is time to transmit a packet we will 754190865Sluigi * model the extra delay as extra bits in the packet. 755190865Sluigi * 756190865Sluigi */ 757190865Sluigi 758190865Sluigi#define ED_MAX_LINE_LEN 256+ED_MAX_NAME_LEN 759190865Sluigi#define ED_TOK_SAMPLES "samples" 760190865Sluigi#define ED_TOK_LOSS "loss-level" 761190865Sluigi#define ED_TOK_NAME "name" 762190865Sluigi#define ED_TOK_DELAY "delay" 763190865Sluigi#define ED_TOK_PROB "prob" 764193715Sluigi#define ED_TOK_BW "bw" 765190865Sluigi#define ED_SEPARATORS " \t\n" 766190865Sluigi#define ED_MIN_SAMPLES_NO 2 767190865Sluigi 768190865Sluigi/* 769190865Sluigi * returns 1 if s is a non-negative number, with at least one '.' 770190865Sluigi */ 771190865Sluigistatic int 772190865Sluigiis_valid_number(const char *s) 773190865Sluigi{ 774190865Sluigi int i, dots_found = 0; 775190865Sluigi int len = strlen(s); 776190865Sluigi 777190865Sluigi for (i = 0; i<len; ++i) 778190865Sluigi if (!isdigit(s[i]) && (s[i] !='.' || ++dots_found > 1)) 779190865Sluigi return 0; 780190865Sluigi return 1; 781190865Sluigi} 782190865Sluigi 783193715Sluigi/* 784193715Sluigi * Take as input a string describing a bandwidth value 785193715Sluigi * and return the numeric bandwidth value. 786193715Sluigi * set clocking interface or bandwidth value 787193715Sluigi */ 788200056Sluigistatic void 789193715Sluigiread_bandwidth(char *arg, int *bandwidth, char *if_name, int namelen) 790193715Sluigi{ 791193715Sluigi if (*bandwidth != -1) 792204591Sluigi warnx("duplicate token, override bandwidth value!"); 793193715Sluigi 794193715Sluigi if (arg[0] >= 'a' && arg[0] <= 'z') { 795204591Sluigi if (!if_name) { 796204591Sluigi errx(1, "no if support"); 797204591Sluigi } 798193715Sluigi if (namelen >= IFNAMSIZ) 799193715Sluigi warn("interface name truncated"); 800193715Sluigi namelen--; 801193715Sluigi /* interface name */ 802320782Sasomers strlcpy(if_name, arg, namelen); 803193715Sluigi *bandwidth = 0; 804193715Sluigi } else { /* read bandwidth value */ 805193715Sluigi int bw; 806193715Sluigi char *end = NULL; 807193715Sluigi 808193715Sluigi bw = strtoul(arg, &end, 0); 809193715Sluigi if (*end == 'K' || *end == 'k') { 810193715Sluigi end++; 811193715Sluigi bw *= 1000; 812205181Sluigi } else if (*end == 'M' || *end == 'm') { 813193715Sluigi end++; 814193715Sluigi bw *= 1000000; 815193715Sluigi } 816193715Sluigi if ((*end == 'B' && 817193715Sluigi _substrcmp2(end, "Bi", "Bit/s") != 0) || 818193715Sluigi _substrcmp2(end, "by", "bytes") == 0) 819193715Sluigi bw *= 8; 820193715Sluigi 821193715Sluigi if (bw < 0) 822193715Sluigi errx(EX_DATAERR, "bandwidth too large"); 823193715Sluigi 824193715Sluigi *bandwidth = bw; 825204591Sluigi if (if_name) 826204591Sluigi if_name[0] = '\0'; 827193715Sluigi } 828193715Sluigi} 829193715Sluigi 830190865Sluigistruct point { 831190865Sluigi double prob; 832190865Sluigi double delay; 833190865Sluigi}; 834190865Sluigi 835200056Sluigistatic int 836190865Sluigicompare_points(const void *vp1, const void *vp2) 837190865Sluigi{ 838190865Sluigi const struct point *p1 = vp1; 839190865Sluigi const struct point *p2 = vp2; 840190865Sluigi double res = 0; 841190865Sluigi 842190865Sluigi res = p1->prob - p2->prob; 843190865Sluigi if (res == 0) 844190865Sluigi res = p1->delay - p2->delay; 845190865Sluigi if (res < 0) 846190865Sluigi return -1; 847190865Sluigi else if (res > 0) 848190865Sluigi return 1; 849190865Sluigi else 850190865Sluigi return 0; 851190865Sluigi} 852190865Sluigi 853190865Sluigi#define ED_EFMT(s) EX_DATAERR,"error in %s at line %d: "#s,filename,lineno 854190865Sluigi 855190865Sluigistatic void 856204591Sluigiload_extra_delays(const char *filename, struct dn_profile *p, 857204591Sluigi struct dn_link *link) 858190865Sluigi{ 859190865Sluigi char line[ED_MAX_LINE_LEN]; 860190865Sluigi FILE *f; 861190865Sluigi int lineno = 0; 862190865Sluigi int i; 863190865Sluigi 864190865Sluigi int samples = -1; 865190865Sluigi double loss = -1.0; 866190865Sluigi char profile_name[ED_MAX_NAME_LEN]; 867190865Sluigi int delay_first = -1; 868190865Sluigi int do_points = 0; 869190865Sluigi struct point points[ED_MAX_SAMPLES_NO]; 870190865Sluigi int points_no = 0; 871190865Sluigi 872204591Sluigi /* XXX link never NULL? */ 873204591Sluigi p->link_nr = link->link_nr; 874204591Sluigi 875190865Sluigi profile_name[0] = '\0'; 876190865Sluigi f = fopen(filename, "r"); 877190865Sluigi if (f == NULL) 878190865Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 879190865Sluigi 880220802Sglebius while (fgets(line, ED_MAX_LINE_LEN, f)) { /* read commands */ 881190865Sluigi char *s, *cur = line, *name = NULL, *arg = NULL; 882190865Sluigi 883190865Sluigi ++lineno; 884190865Sluigi 885190865Sluigi /* parse the line */ 886190865Sluigi while (cur) { 887190865Sluigi s = strsep(&cur, ED_SEPARATORS); 888190865Sluigi if (s == NULL || *s == '#') 889190865Sluigi break; 890190865Sluigi if (*s == '\0') 891190865Sluigi continue; 892190865Sluigi if (arg) 893190865Sluigi errx(ED_EFMT("too many arguments")); 894190865Sluigi if (name == NULL) 895190865Sluigi name = s; 896190865Sluigi else 897190865Sluigi arg = s; 898190865Sluigi } 899190865Sluigi if (name == NULL) /* empty line */ 900190865Sluigi continue; 901190865Sluigi if (arg == NULL) 902190865Sluigi errx(ED_EFMT("missing arg for %s"), name); 903190865Sluigi 904190865Sluigi if (!strcasecmp(name, ED_TOK_SAMPLES)) { 905190865Sluigi if (samples > 0) 906190865Sluigi errx(ED_EFMT("duplicate ``samples'' line")); 907190865Sluigi if (atoi(arg) <=0) 908190865Sluigi errx(ED_EFMT("invalid number of samples")); 909190865Sluigi samples = atoi(arg); 910190865Sluigi if (samples>ED_MAX_SAMPLES_NO) 911190865Sluigi errx(ED_EFMT("too many samples, maximum is %d"), 912190865Sluigi ED_MAX_SAMPLES_NO); 913190865Sluigi do_points = 0; 914193715Sluigi } else if (!strcasecmp(name, ED_TOK_BW)) { 915204591Sluigi char buf[IFNAMSIZ]; 916204591Sluigi read_bandwidth(arg, &link->bandwidth, buf, sizeof(buf)); 917190865Sluigi } else if (!strcasecmp(name, ED_TOK_LOSS)) { 918190865Sluigi if (loss != -1.0) 919190865Sluigi errx(ED_EFMT("duplicated token: %s"), name); 920190865Sluigi if (!is_valid_number(arg)) 921190865Sluigi errx(ED_EFMT("invalid %s"), arg); 922190865Sluigi loss = atof(arg); 923190865Sluigi if (loss > 1) 924190865Sluigi errx(ED_EFMT("%s greater than 1.0"), name); 925190865Sluigi do_points = 0; 926190865Sluigi } else if (!strcasecmp(name, ED_TOK_NAME)) { 927190865Sluigi if (profile_name[0] != '\0') 928190865Sluigi errx(ED_EFMT("duplicated token: %s"), name); 929320782Sasomers strlcpy(profile_name, arg, sizeof(profile_name)); 930190865Sluigi do_points = 0; 931190865Sluigi } else if (!strcasecmp(name, ED_TOK_DELAY)) { 932190865Sluigi if (do_points) 933190865Sluigi errx(ED_EFMT("duplicated token: %s"), name); 934190865Sluigi delay_first = 1; 935190865Sluigi do_points = 1; 936190865Sluigi } else if (!strcasecmp(name, ED_TOK_PROB)) { 937190865Sluigi if (do_points) 938190865Sluigi errx(ED_EFMT("duplicated token: %s"), name); 939190865Sluigi delay_first = 0; 940190865Sluigi do_points = 1; 941190865Sluigi } else if (do_points) { 942190865Sluigi if (!is_valid_number(name) || !is_valid_number(arg)) 943190865Sluigi errx(ED_EFMT("invalid point found")); 944190865Sluigi if (delay_first) { 945190865Sluigi points[points_no].delay = atof(name); 946190865Sluigi points[points_no].prob = atof(arg); 947190865Sluigi } else { 948190865Sluigi points[points_no].delay = atof(arg); 949190865Sluigi points[points_no].prob = atof(name); 950190865Sluigi } 951190865Sluigi if (points[points_no].prob > 1.0) 952190865Sluigi errx(ED_EFMT("probability greater than 1.0")); 953190865Sluigi ++points_no; 954190865Sluigi } else { 955190865Sluigi errx(ED_EFMT("unrecognised command '%s'"), name); 956190865Sluigi } 957190865Sluigi } 958190865Sluigi 959199626Snetchild fclose (f); 960199626Snetchild 961190865Sluigi if (samples == -1) { 962190865Sluigi warnx("'%s' not found, assuming 100", ED_TOK_SAMPLES); 963190865Sluigi samples = 100; 964190865Sluigi } 965190865Sluigi 966190865Sluigi if (loss == -1.0) { 967190865Sluigi warnx("'%s' not found, assuming no loss", ED_TOK_LOSS); 968190865Sluigi loss = 1; 969190865Sluigi } 970190865Sluigi 971190865Sluigi /* make sure that there are enough points. */ 972190865Sluigi if (points_no < ED_MIN_SAMPLES_NO) 973190865Sluigi errx(ED_EFMT("too few samples, need at least %d"), 974190865Sluigi ED_MIN_SAMPLES_NO); 975190865Sluigi 976190865Sluigi qsort(points, points_no, sizeof(struct point), compare_points); 977190865Sluigi 978190865Sluigi /* interpolation */ 979190865Sluigi for (i = 0; i<points_no-1; ++i) { 980190865Sluigi double y1 = points[i].prob * samples; 981190865Sluigi double x1 = points[i].delay; 982190865Sluigi double y2 = points[i+1].prob * samples; 983190865Sluigi double x2 = points[i+1].delay; 984190865Sluigi 985204591Sluigi int ix = y1; 986190865Sluigi int stop = y2; 987190865Sluigi 988190865Sluigi if (x1 == x2) { 989204591Sluigi for (; ix<stop; ++ix) 990204591Sluigi p->samples[ix] = x1; 991190865Sluigi } else { 992190865Sluigi double m = (y2-y1)/(x2-x1); 993190865Sluigi double c = y1 - m*x1; 994204591Sluigi for (; ix<stop ; ++ix) 995204591Sluigi p->samples[ix] = (ix - c)/m; 996190865Sluigi } 997190865Sluigi } 998190865Sluigi p->samples_no = samples; 999190865Sluigi p->loss_level = loss * samples; 1000320782Sasomers strlcpy(p->name, profile_name, sizeof(p->name)); 1001190865Sluigi} 1002190865Sluigi 1003301772Struckman#ifdef NEW_AQM 1004301772Struckman 1005301772Struckman/* Parse AQM/extra scheduler parameters */ 1006301772Struckmanstatic int 1007301772Struckmanprocess_extra_parms(int *ac, char **av, struct dn_extra_parms *ep, 1008301772Struckman uint16_t type) 1009301772Struckman{ 1010301772Struckman int i; 1011301772Struckman 1012301772Struckman /* use kernel defaults */ 1013301772Struckman for (i=0; i<DN_MAX_EXTRA_PARM; i++) 1014301772Struckman ep->par[i] = -1; 1015301772Struckman 1016301772Struckman switch(type) { 1017301772Struckman case TOK_CODEL: 1018301772Struckman case TOK_FQ_CODEL: 1019301772Struckman /* Codel 1020301772Struckman * 0- target, 1- interval, 2- flags, 1021301772Struckman * FQ_CODEL 1022301772Struckman * 3- quantum, 4- limit, 5- flows 1023301772Struckman */ 1024301772Struckman if (type==TOK_CODEL) 1025301772Struckman ep->par[2] = 0; 1026301772Struckman else 1027301772Struckman ep->par[2] = CODEL_ECN_ENABLED; 1028301772Struckman 1029301772Struckman while (*ac > 0) { 1030301772Struckman int tok = match_token(aqm_params, *av); 1031301772Struckman (*ac)--; av++; 1032301772Struckman switch(tok) { 1033301772Struckman case TOK_TARGET: 1034301772Struckman if (*ac <= 0 || time_to_us(av[0]) < 0) 1035301772Struckman errx(EX_DATAERR, "target needs time\n"); 1036301772Struckman 1037301772Struckman ep->par[0] = time_to_us(av[0]); 1038301772Struckman (*ac)--; av++; 1039301772Struckman break; 1040301772Struckman 1041301772Struckman case TOK_INTERVAL: 1042301772Struckman if (*ac <= 0 || time_to_us(av[0]) < 0) 1043301772Struckman errx(EX_DATAERR, "interval needs time\n"); 1044301772Struckman 1045301772Struckman ep->par[1] = time_to_us(av[0]); 1046301772Struckman (*ac)--; av++; 1047301772Struckman break; 1048301772Struckman 1049301772Struckman case TOK_ECN: 1050301772Struckman ep->par[2] = CODEL_ECN_ENABLED; 1051301772Struckman break; 1052301772Struckman case TOK_NO_ECN: 1053301772Struckman ep->par[2] &= ~CODEL_ECN_ENABLED; 1054301772Struckman break; 1055301772Struckman /* Config fq_codel parameters */ 1056301772Struckman case TOK_QUANTUM: 1057301772Struckman if (type != TOK_FQ_CODEL) 1058301772Struckman errx(EX_DATAERR, "quantum is not for codel\n"); 1059301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1060301772Struckman errx(EX_DATAERR, "quantum needs number\n"); 1061301772Struckman 1062301772Struckman ep->par[3]= atoi(av[0]); 1063301772Struckman (*ac)--; av++; 1064301772Struckman break; 1065301772Struckman 1066301772Struckman case TOK_LIMIT: 1067301772Struckman if (type != TOK_FQ_CODEL) 1068301772Struckman errx(EX_DATAERR, "limit is not for codel, use queue instead\n"); 1069301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1070301772Struckman errx(EX_DATAERR, "limit needs number\n"); 1071301772Struckman 1072301772Struckman ep->par[4] = atoi(av[0]); 1073301772Struckman (*ac)--; av++; 1074301772Struckman break; 1075301772Struckman 1076301772Struckman case TOK_FLOWS: 1077301772Struckman if (type != TOK_FQ_CODEL) 1078301772Struckman errx(EX_DATAERR, "flows is not for codel\n"); 1079301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1080301772Struckman errx(EX_DATAERR, "flows needs number\n"); 1081301772Struckman 1082301772Struckman ep->par[5] = atoi(av[0]); 1083301772Struckman (*ac)--; av++; 1084301772Struckman break; 1085301772Struckman 1086301772Struckman default: 1087301772Struckman printf("%s is Invalid parameter\n", av[-1]); 1088301772Struckman } 1089301772Struckman } 1090301772Struckman break; 1091301772Struckman case TOK_PIE: 1092301772Struckman case TOK_FQ_PIE: 1093301772Struckman /* PIE 1094301772Struckman * 0- target , 1- tupdate, 2- max_burst, 1095301772Struckman * 3- max_ecnth, 4- alpha, 1096301772Struckman * 5- beta, 6- flags 1097301772Struckman * FQ_CODEL 1098301772Struckman * 7- quantum, 8- limit, 9- flows 1099301772Struckman */ 1100301772Struckman 1101301772Struckman if ( type == TOK_PIE) 1102301772Struckman ep->par[6] = PIE_CAPDROP_ENABLED | PIE_DEPRATEEST_ENABLED 1103301772Struckman | PIE_DERAND_ENABLED; 1104301772Struckman else 1105301772Struckman /* for FQ-PIE, use TS mode */ 1106301772Struckman ep->par[6] = PIE_CAPDROP_ENABLED | PIE_DERAND_ENABLED 1107301772Struckman | PIE_ECN_ENABLED; 1108301772Struckman 1109301772Struckman while (*ac > 0) { 1110301772Struckman int tok = match_token(aqm_params, *av); 1111301772Struckman (*ac)--; av++; 1112301772Struckman switch(tok) { 1113301772Struckman case TOK_TARGET: 1114301772Struckman if (*ac <= 0 || time_to_us(av[0]) < 0) 1115301772Struckman errx(EX_DATAERR, "target needs time\n"); 1116301772Struckman 1117301772Struckman ep->par[0] = time_to_us(av[0]); 1118301772Struckman (*ac)--; av++; 1119301772Struckman break; 1120301772Struckman 1121301772Struckman case TOK_TUPDATE: 1122301772Struckman if (*ac <= 0 || time_to_us(av[0]) < 0) 1123301772Struckman errx(EX_DATAERR, "tupdate needs time\n"); 1124301772Struckman 1125301772Struckman ep->par[1] = time_to_us(av[0]); 1126301772Struckman (*ac)--; av++; 1127301772Struckman break; 1128301772Struckman 1129301772Struckman case TOK_MAX_BURST: 1130301772Struckman if (*ac <= 0 || time_to_us(av[0]) < 0) 1131301772Struckman errx(EX_DATAERR, "max_burst needs time\n"); 1132301772Struckman 1133301772Struckman ep->par[2] = time_to_us(av[0]); 1134301772Struckman (*ac)--; av++; 1135301772Struckman break; 1136301772Struckman 1137301772Struckman case TOK_MAX_ECNTH: 1138301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1139301772Struckman errx(EX_DATAERR, "max_ecnth needs number\n"); 1140301772Struckman 1141301772Struckman ep->par[3] = atof(av[0]) * PIE_SCALE; 1142301772Struckman (*ac)--; av++; 1143301772Struckman break; 1144301772Struckman 1145301772Struckman case TOK_ALPHA: 1146301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1147301772Struckman errx(EX_DATAERR, "alpha needs number\n"); 1148301772Struckman 1149301772Struckman ep->par[4] = atof(av[0]) * PIE_SCALE; 1150301772Struckman (*ac)--; av++; 1151301772Struckman break; 1152301772Struckman 1153301772Struckman case TOK_BETA: 1154301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1155301772Struckman errx(EX_DATAERR, "beta needs number\n"); 1156301772Struckman 1157301772Struckman ep->par[5] = atof(av[0]) * PIE_SCALE; 1158301772Struckman (*ac)--; av++; 1159301772Struckman break; 1160301772Struckman 1161301772Struckman case TOK_ECN: 1162301772Struckman ep->par[6] |= PIE_ECN_ENABLED; 1163301772Struckman break; 1164301772Struckman case TOK_NO_ECN: 1165301772Struckman ep->par[6] &= ~PIE_ECN_ENABLED; 1166301772Struckman break; 1167301772Struckman 1168301772Struckman case TOK_CAPDROP: 1169301772Struckman ep->par[6] |= PIE_CAPDROP_ENABLED; 1170301772Struckman break; 1171301772Struckman case TOK_NO_CAPDROP: 1172301772Struckman ep->par[6] &= ~PIE_CAPDROP_ENABLED; 1173301772Struckman break; 1174301772Struckman 1175301772Struckman case TOK_ONOFF: 1176301772Struckman ep->par[6] |= PIE_ON_OFF_MODE_ENABLED; 1177301772Struckman break; 1178301772Struckman 1179301772Struckman case TOK_DRE: 1180301772Struckman ep->par[6] |= PIE_DEPRATEEST_ENABLED; 1181301772Struckman break; 1182301772Struckman 1183301772Struckman case TOK_TS: 1184301772Struckman ep->par[6] &= ~PIE_DEPRATEEST_ENABLED; 1185301772Struckman break; 1186301772Struckman 1187301772Struckman case TOK_DERAND: 1188301772Struckman ep->par[6] |= PIE_DERAND_ENABLED; 1189301772Struckman break; 1190301772Struckman case TOK_NO_DERAND: 1191301772Struckman ep->par[6] &= ~PIE_DERAND_ENABLED; 1192301772Struckman break; 1193301772Struckman 1194301772Struckman /* Config fq_pie parameters */ 1195301772Struckman case TOK_QUANTUM: 1196301772Struckman if (type != TOK_FQ_PIE) 1197301772Struckman errx(EX_DATAERR, "quantum is not for pie\n"); 1198301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1199301772Struckman errx(EX_DATAERR, "quantum needs number\n"); 1200301772Struckman 1201301772Struckman ep->par[7]= atoi(av[0]); 1202301772Struckman (*ac)--; av++; 1203301772Struckman break; 1204301772Struckman 1205301772Struckman case TOK_LIMIT: 1206301772Struckman if (type != TOK_FQ_PIE) 1207301772Struckman errx(EX_DATAERR, "limit is not for pie, use queue instead\n"); 1208301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1209301772Struckman errx(EX_DATAERR, "limit needs number\n"); 1210301772Struckman 1211301772Struckman ep->par[8] = atoi(av[0]); 1212301772Struckman (*ac)--; av++; 1213301772Struckman break; 1214301772Struckman 1215301772Struckman case TOK_FLOWS: 1216301772Struckman if (type != TOK_FQ_PIE) 1217301772Struckman errx(EX_DATAERR, "flows is not for pie\n"); 1218301772Struckman if (*ac <= 0 || !is_valid_number(av[0])) 1219301772Struckman errx(EX_DATAERR, "flows needs number\n"); 1220301772Struckman 1221301772Struckman ep->par[9] = atoi(av[0]); 1222301772Struckman (*ac)--; av++; 1223301772Struckman break; 1224301772Struckman 1225301772Struckman 1226301772Struckman default: 1227301772Struckman printf("%s is invalid parameter\n", av[-1]); 1228301772Struckman } 1229301772Struckman } 1230301772Struckman break; 1231301772Struckman } 1232301772Struckman 1233301772Struckman return 0; 1234301772Struckman} 1235301772Struckman 1236301772Struckman#endif 1237301772Struckman 1238301772Struckman 1239204591Sluigi/* 1240204591Sluigi * configuration of pipes, schedulers, flowsets. 1241204591Sluigi * When we configure a new scheduler, an empty pipe is created, so: 1242220802Sglebius * 1243204591Sluigi * do_pipe = 1 -> "pipe N config ..." only for backward compatibility 1244204591Sluigi * sched N+Delta type fifo sched_mask ... 1245204591Sluigi * pipe N+Delta <parameters> 1246204591Sluigi * flowset N+Delta pipe N+Delta (no parameters) 1247204591Sluigi * sched N type wf2q+ sched_mask ... 1248204591Sluigi * pipe N <parameters> 1249204591Sluigi * 1250204591Sluigi * do_pipe = 2 -> flowset N config 1251204591Sluigi * flowset N parameters 1252204591Sluigi * 1253204591Sluigi * do_pipe = 3 -> sched N config 1254204591Sluigi * sched N parameters (default no pipe) 1255204591Sluigi * optional Pipe N config ... 1256204591Sluigi * pipe ==> 1257204591Sluigi */ 1258187769Sluigivoid 1259187769Sluigiipfw_config_pipe(int ac, char **av) 1260187769Sluigi{ 1261238900Sluigi int i; 1262238900Sluigi u_int j; 1263187769Sluigi char *end; 1264204591Sluigi struct dn_id *buf, *base; 1265204591Sluigi struct dn_sch *sch = NULL; 1266204591Sluigi struct dn_link *p = NULL; 1267204591Sluigi struct dn_fs *fs = NULL; 1268204591Sluigi struct dn_profile *pf = NULL; 1269204591Sluigi struct ipfw_flow_id *mask = NULL; 1270301772Struckman#ifdef NEW_AQM 1271301772Struckman struct dn_extra_parms *aqm_extra; 1272301772Struckman struct dn_extra_parms *sch_extra; 1273301772Struckman int lmax_extra; 1274301772Struckman#endif 1275301772Struckman 1276204591Sluigi int lmax; 1277204591Sluigi uint32_t _foo = 0, *flags = &_foo , *buckets = &_foo; 1278187769Sluigi 1279204591Sluigi /* 1280204591Sluigi * allocate space for 1 header, 1281204591Sluigi * 1 scheduler, 1 link, 1 flowset, 1 profile 1282204591Sluigi */ 1283204591Sluigi lmax = sizeof(struct dn_id); /* command header */ 1284204591Sluigi lmax += sizeof(struct dn_sch) + sizeof(struct dn_link) + 1285204591Sluigi sizeof(struct dn_fs) + sizeof(struct dn_profile); 1286187769Sluigi 1287301772Struckman#ifdef NEW_AQM 1288301772Struckman /* Extra Params */ 1289301772Struckman lmax_extra = sizeof(struct dn_extra_parms); 1290301772Struckman /* two lmax_extra because one for AQM params and another 1291301772Struckman * sch params 1292301772Struckman */ 1293301772Struckman lmax += lmax_extra*2; 1294301772Struckman#endif 1295301772Struckman 1296187769Sluigi av++; ac--; 1297187769Sluigi /* Pipe number */ 1298187769Sluigi if (ac && isdigit(**av)) { 1299187769Sluigi i = atoi(*av); av++; ac--; 1300204591Sluigi } else 1301204591Sluigi i = -1; 1302204591Sluigi if (i <= 0) 1303204591Sluigi errx(EX_USAGE, "need a pipe/flowset/sched number"); 1304204591Sluigi base = buf = safe_calloc(1, lmax); 1305204591Sluigi /* all commands start with a 'CONFIGURE' and a version */ 1306204591Sluigi o_next(&buf, sizeof(struct dn_id), DN_CMD_CONFIG); 1307204591Sluigi base->id = DN_API_VERSION; 1308204591Sluigi 1309204591Sluigi switch (co.do_pipe) { 1310204591Sluigi case 1: /* "pipe N config ..." */ 1311204591Sluigi /* Allocate space for the WF2Q+ scheduler, its link 1312204591Sluigi * and the FIFO flowset. Set the number, but leave 1313204591Sluigi * the scheduler subtype and other parameters to 0 1314204591Sluigi * so the kernel will use appropriate defaults. 1315204591Sluigi * XXX todo: add a flag to record if a parameter 1316204591Sluigi * is actually configured. 1317204591Sluigi * If we do a 'pipe config' mask -> sched_mask. 1318204591Sluigi * The FIFO scheduler and link are derived from the 1319204591Sluigi * WF2Q+ one in the kernel. 1320204591Sluigi */ 1321301772Struckman#ifdef NEW_AQM 1322301772Struckman sch_extra = o_next(&buf, lmax_extra, DN_TEXT); 1323301772Struckman sch_extra ->oid.subtype = 0; /* don't configure scheduler */ 1324301772Struckman#endif 1325204591Sluigi sch = o_next(&buf, sizeof(*sch), DN_SCH); 1326204591Sluigi p = o_next(&buf, sizeof(*p), DN_LINK); 1327301772Struckman#ifdef NEW_AQM 1328301772Struckman aqm_extra = o_next(&buf, lmax_extra, DN_TEXT); 1329301772Struckman aqm_extra ->oid.subtype = 0; /* don't configure AQM */ 1330301772Struckman#endif 1331204591Sluigi fs = o_next(&buf, sizeof(*fs), DN_FS); 1332204591Sluigi 1333204591Sluigi sch->sched_nr = i; 1334204591Sluigi sch->oid.subtype = 0; /* defaults to WF2Q+ */ 1335204591Sluigi mask = &sch->sched_mask; 1336204591Sluigi flags = &sch->flags; 1337204591Sluigi buckets = &sch->buckets; 1338204591Sluigi *flags |= DN_PIPE_CMD; 1339204591Sluigi 1340204591Sluigi p->link_nr = i; 1341204591Sluigi 1342204591Sluigi /* This flowset is only for the FIFO scheduler */ 1343204591Sluigi fs->fs_nr = i + 2*DN_MAX_ID; 1344204591Sluigi fs->sched_nr = i + DN_MAX_ID; 1345204591Sluigi break; 1346204591Sluigi 1347204591Sluigi case 2: /* "queue N config ... " */ 1348301772Struckman#ifdef NEW_AQM 1349301772Struckman aqm_extra = o_next(&buf, lmax_extra, DN_TEXT); 1350301772Struckman aqm_extra ->oid.subtype = 0; 1351301772Struckman#endif 1352204591Sluigi fs = o_next(&buf, sizeof(*fs), DN_FS); 1353204591Sluigi fs->fs_nr = i; 1354204591Sluigi mask = &fs->flow_mask; 1355204591Sluigi flags = &fs->flags; 1356204591Sluigi buckets = &fs->buckets; 1357204591Sluigi break; 1358204591Sluigi 1359204591Sluigi case 3: /* "sched N config ..." */ 1360301772Struckman#ifdef NEW_AQM 1361301772Struckman sch_extra = o_next(&buf, lmax_extra, DN_TEXT); 1362301772Struckman sch_extra ->oid.subtype = 0; 1363301772Struckman#endif 1364204591Sluigi sch = o_next(&buf, sizeof(*sch), DN_SCH); 1365301772Struckman#ifdef NEW_AQM 1366301772Struckman aqm_extra = o_next(&buf, lmax_extra, DN_TEXT); 1367301772Struckman aqm_extra ->oid.subtype = 0; 1368301772Struckman#endif 1369204591Sluigi fs = o_next(&buf, sizeof(*fs), DN_FS); 1370204591Sluigi sch->sched_nr = i; 1371204591Sluigi mask = &sch->sched_mask; 1372204591Sluigi flags = &sch->flags; 1373204591Sluigi buckets = &sch->buckets; 1374204591Sluigi /* fs is used only with !MULTIQUEUE schedulers */ 1375204591Sluigi fs->fs_nr = i + DN_MAX_ID; 1376204591Sluigi fs->sched_nr = i; 1377204591Sluigi break; 1378187769Sluigi } 1379204591Sluigi /* set to -1 those fields for which we want to reuse existing 1380204591Sluigi * values from the kernel. 1381204591Sluigi * Also, *_nr and subtype = 0 mean reuse the value from the kernel. 1382204591Sluigi * XXX todo: support reuse of the mask. 1383204591Sluigi */ 1384204591Sluigi if (p) 1385204591Sluigi p->bandwidth = -1; 1386204591Sluigi for (j = 0; j < sizeof(fs->par)/sizeof(fs->par[0]); j++) 1387204591Sluigi fs->par[j] = -1; 1388187769Sluigi while (ac > 0) { 1389187769Sluigi double d; 1390187769Sluigi int tok = match_token(dummynet_params, *av); 1391187769Sluigi ac--; av++; 1392187769Sluigi 1393187769Sluigi switch(tok) { 1394187769Sluigi case TOK_NOERROR: 1395204591Sluigi NEED(fs, "noerror is only for pipes"); 1396204591Sluigi fs->flags |= DN_NOERROR; 1397187769Sluigi break; 1398187769Sluigi 1399187769Sluigi case TOK_PLR: 1400204591Sluigi NEED(fs, "plr is only for pipes"); 1401187769Sluigi NEED1("plr needs argument 0..1\n"); 1402187769Sluigi d = strtod(av[0], NULL); 1403187769Sluigi if (d > 1) 1404187769Sluigi d = 1; 1405187769Sluigi else if (d < 0) 1406187769Sluigi d = 0; 1407204591Sluigi fs->plr = (int)(d*0x7fffffff); 1408187769Sluigi ac--; av++; 1409187769Sluigi break; 1410187769Sluigi 1411187769Sluigi case TOK_QUEUE: 1412204591Sluigi NEED(fs, "queue is only for pipes or flowsets"); 1413187769Sluigi NEED1("queue needs queue size\n"); 1414187769Sluigi end = NULL; 1415204591Sluigi fs->qsize = strtoul(av[0], &end, 0); 1416187769Sluigi if (*end == 'K' || *end == 'k') { 1417204591Sluigi fs->flags |= DN_QSIZE_BYTES; 1418204591Sluigi fs->qsize *= 1024; 1419187769Sluigi } else if (*end == 'B' || 1420187769Sluigi _substrcmp2(end, "by", "bytes") == 0) { 1421204591Sluigi fs->flags |= DN_QSIZE_BYTES; 1422187769Sluigi } 1423187769Sluigi ac--; av++; 1424187769Sluigi break; 1425187769Sluigi 1426187769Sluigi case TOK_BUCKETS: 1427204591Sluigi NEED(fs, "buckets is only for pipes or flowsets"); 1428187769Sluigi NEED1("buckets needs argument\n"); 1429204591Sluigi *buckets = strtoul(av[0], NULL, 0); 1430187769Sluigi ac--; av++; 1431187769Sluigi break; 1432187769Sluigi 1433204591Sluigi case TOK_FLOW_MASK: 1434204591Sluigi case TOK_SCHED_MASK: 1435187769Sluigi case TOK_MASK: 1436204591Sluigi NEED(mask, "tok_mask"); 1437187769Sluigi NEED1("mask needs mask specifier\n"); 1438187769Sluigi /* 1439187769Sluigi * per-flow queue, mask is dst_ip, dst_port, 1440187769Sluigi * src_ip, src_port, proto measured in bits 1441187769Sluigi */ 1442187769Sluigi 1443204591Sluigi bzero(mask, sizeof(*mask)); 1444187769Sluigi end = NULL; 1445187769Sluigi 1446187769Sluigi while (ac >= 1) { 1447187769Sluigi uint32_t *p32 = NULL; 1448187769Sluigi uint16_t *p16 = NULL; 1449187769Sluigi uint32_t *p20 = NULL; 1450187769Sluigi struct in6_addr *pa6 = NULL; 1451187769Sluigi uint32_t a; 1452187769Sluigi 1453187769Sluigi tok = match_token(dummynet_params, *av); 1454187769Sluigi ac--; av++; 1455187769Sluigi switch(tok) { 1456187769Sluigi case TOK_ALL: 1457187769Sluigi /* 1458187769Sluigi * special case, all bits significant 1459205173Sluigi * except 'extra' (the queue number) 1460187769Sluigi */ 1461204591Sluigi mask->dst_ip = ~0; 1462204591Sluigi mask->src_ip = ~0; 1463204591Sluigi mask->dst_port = ~0; 1464204591Sluigi mask->src_port = ~0; 1465204591Sluigi mask->proto = ~0; 1466204591Sluigi n2mask(&mask->dst_ip6, 128); 1467204591Sluigi n2mask(&mask->src_ip6, 128); 1468204591Sluigi mask->flow_id6 = ~0; 1469204591Sluigi *flags |= DN_HAVE_MASK; 1470187769Sluigi goto end_mask; 1471187769Sluigi 1472205173Sluigi case TOK_QUEUE: 1473205173Sluigi mask->extra = ~0; 1474205173Sluigi *flags |= DN_HAVE_MASK; 1475205173Sluigi goto end_mask; 1476205173Sluigi 1477187769Sluigi case TOK_DSTIP: 1478204591Sluigi mask->addr_type = 4; 1479204591Sluigi p32 = &mask->dst_ip; 1480187769Sluigi break; 1481187769Sluigi 1482187769Sluigi case TOK_SRCIP: 1483204591Sluigi mask->addr_type = 4; 1484204591Sluigi p32 = &mask->src_ip; 1485187769Sluigi break; 1486187769Sluigi 1487187769Sluigi case TOK_DSTIP6: 1488204591Sluigi mask->addr_type = 6; 1489204591Sluigi pa6 = &mask->dst_ip6; 1490187769Sluigi break; 1491220802Sglebius 1492187769Sluigi case TOK_SRCIP6: 1493204591Sluigi mask->addr_type = 6; 1494204591Sluigi pa6 = &mask->src_ip6; 1495187769Sluigi break; 1496187769Sluigi 1497187769Sluigi case TOK_FLOWID: 1498204591Sluigi mask->addr_type = 6; 1499204591Sluigi p20 = &mask->flow_id6; 1500187769Sluigi break; 1501187769Sluigi 1502187769Sluigi case TOK_DSTPORT: 1503204591Sluigi p16 = &mask->dst_port; 1504187769Sluigi break; 1505187769Sluigi 1506187769Sluigi case TOK_SRCPORT: 1507204591Sluigi p16 = &mask->src_port; 1508187769Sluigi break; 1509187769Sluigi 1510187769Sluigi case TOK_PROTO: 1511187769Sluigi break; 1512187769Sluigi 1513187769Sluigi default: 1514187769Sluigi ac++; av--; /* backtrack */ 1515187769Sluigi goto end_mask; 1516187769Sluigi } 1517187769Sluigi if (ac < 1) 1518187769Sluigi errx(EX_USAGE, "mask: value missing"); 1519187769Sluigi if (*av[0] == '/') { 1520187769Sluigi a = strtoul(av[0]+1, &end, 0); 1521187769Sluigi if (pa6 == NULL) 1522187769Sluigi a = (a == 32) ? ~0 : (1 << a) - 1; 1523187769Sluigi } else 1524187769Sluigi a = strtoul(av[0], &end, 0); 1525187769Sluigi if (p32 != NULL) 1526187769Sluigi *p32 = a; 1527187769Sluigi else if (p16 != NULL) { 1528187769Sluigi if (a > 0xFFFF) 1529187769Sluigi errx(EX_DATAERR, 1530187769Sluigi "port mask must be 16 bit"); 1531187769Sluigi *p16 = (uint16_t)a; 1532187769Sluigi } else if (p20 != NULL) { 1533187769Sluigi if (a > 0xfffff) 1534187769Sluigi errx(EX_DATAERR, 1535187769Sluigi "flow_id mask must be 20 bit"); 1536187769Sluigi *p20 = (uint32_t)a; 1537187769Sluigi } else if (pa6 != NULL) { 1538187769Sluigi if (a > 128) 1539187769Sluigi errx(EX_DATAERR, 1540187769Sluigi "in6addr invalid mask len"); 1541187769Sluigi else 1542187769Sluigi n2mask(pa6, a); 1543187769Sluigi } else { 1544187769Sluigi if (a > 0xFF) 1545187769Sluigi errx(EX_DATAERR, 1546187769Sluigi "proto mask must be 8 bit"); 1547205173Sluigi mask->proto = (uint8_t)a; 1548187769Sluigi } 1549187769Sluigi if (a != 0) 1550204591Sluigi *flags |= DN_HAVE_MASK; 1551187769Sluigi ac--; av++; 1552187769Sluigi } /* end while, config masks */ 1553187769Sluigiend_mask: 1554187769Sluigi break; 1555301772Struckman#ifdef NEW_AQM 1556301772Struckman case TOK_CODEL: 1557301772Struckman case TOK_PIE: 1558301772Struckman NEED(fs, "codel/pie is only for flowsets"); 1559187769Sluigi 1560301772Struckman fs->flags &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 1561301772Struckman fs->flags |= DN_IS_AQM; 1562301772Struckman 1563320782Sasomers strlcpy(aqm_extra->name, av[-1], 1564320782Sasomers sizeof(aqm_extra->name)); 1565301772Struckman aqm_extra->oid.subtype = DN_AQM_PARAMS; 1566301772Struckman 1567301772Struckman process_extra_parms(&ac, av, aqm_extra, tok); 1568301772Struckman break; 1569301772Struckman 1570301772Struckman case TOK_FQ_CODEL: 1571301772Struckman case TOK_FQ_PIE: 1572301772Struckman if (!strcmp(av[-1],"type")) 1573301772Struckman errx(EX_DATAERR, "use type before fq_codel/fq_pie"); 1574301772Struckman 1575301772Struckman NEED(sch, "fq_codel/fq_pie is only for schd"); 1576320782Sasomers strlcpy(sch_extra->name, av[-1], 1577320782Sasomers sizeof(sch_extra->name)); 1578301772Struckman sch_extra->oid.subtype = DN_SCH_PARAMS; 1579301772Struckman process_extra_parms(&ac, av, sch_extra, tok); 1580301772Struckman break; 1581301772Struckman#endif 1582187769Sluigi case TOK_RED: 1583187769Sluigi case TOK_GRED: 1584187769Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 1585204591Sluigi fs->flags |= DN_IS_RED; 1586187769Sluigi if (tok == TOK_GRED) 1587204591Sluigi fs->flags |= DN_IS_GENTLE_RED; 1588187769Sluigi /* 1589187769Sluigi * the format for parameters is w_q/min_th/max_th/max_p 1590187769Sluigi */ 1591187769Sluigi if ((end = strsep(&av[0], "/"))) { 1592187769Sluigi double w_q = strtod(end, NULL); 1593187769Sluigi if (w_q > 1 || w_q <= 0) 1594187769Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 1595204591Sluigi fs->w_q = (int) (w_q * (1 << SCALE_RED)); 1596187769Sluigi } 1597187769Sluigi if ((end = strsep(&av[0], "/"))) { 1598204591Sluigi fs->min_th = strtoul(end, &end, 0); 1599187769Sluigi if (*end == 'K' || *end == 'k') 1600204591Sluigi fs->min_th *= 1024; 1601187769Sluigi } 1602187769Sluigi if ((end = strsep(&av[0], "/"))) { 1603204591Sluigi fs->max_th = strtoul(end, &end, 0); 1604187769Sluigi if (*end == 'K' || *end == 'k') 1605204591Sluigi fs->max_th *= 1024; 1606187769Sluigi } 1607187769Sluigi if ((end = strsep(&av[0], "/"))) { 1608187769Sluigi double max_p = strtod(end, NULL); 1609301231Struckman if (max_p > 1 || max_p < 0) 1610301231Struckman errx(EX_DATAERR, "0 <= max_p <= 1"); 1611204591Sluigi fs->max_p = (int)(max_p * (1 << SCALE_RED)); 1612187769Sluigi } 1613187769Sluigi ac--; av++; 1614187769Sluigi break; 1615187769Sluigi 1616301231Struckman case TOK_ECN: 1617301231Struckman fs->flags |= DN_IS_ECN; 1618301231Struckman break; 1619301231Struckman 1620187769Sluigi case TOK_DROPTAIL: 1621204591Sluigi NEED(fs, "droptail is only for flowsets"); 1622204591Sluigi fs->flags &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 1623187769Sluigi break; 1624187769Sluigi 1625187769Sluigi case TOK_BW: 1626204591Sluigi NEED(p, "bw is only for links"); 1627187769Sluigi NEED1("bw needs bandwidth or interface\n"); 1628204591Sluigi read_bandwidth(av[0], &p->bandwidth, NULL, 0); 1629187769Sluigi ac--; av++; 1630187769Sluigi break; 1631187769Sluigi 1632187769Sluigi case TOK_DELAY: 1633204591Sluigi NEED(p, "delay is only for links"); 1634187769Sluigi NEED1("delay needs argument 0..10000ms\n"); 1635204591Sluigi p->delay = strtoul(av[0], NULL, 0); 1636187769Sluigi ac--; av++; 1637187769Sluigi break; 1638187769Sluigi 1639204591Sluigi case TOK_TYPE: { 1640204591Sluigi int l; 1641204591Sluigi NEED(sch, "type is only for schedulers"); 1642204591Sluigi NEED1("type needs a string"); 1643204591Sluigi l = strlen(av[0]); 1644204591Sluigi if (l == 0 || l > 15) 1645204591Sluigi errx(1, "type %s too long\n", av[0]); 1646320782Sasomers strlcpy(sch->name, av[0], sizeof(sch->name)); 1647204591Sluigi sch->oid.subtype = 0; /* use string */ 1648301772Struckman#ifdef NEW_AQM 1649301772Struckman /* if fq_codel is selected, consider all tokens after it 1650301772Struckman * as parameters 1651301772Struckman */ 1652301772Struckman if (!strcasecmp(av[0],"fq_codel") || !strcasecmp(av[0],"fq_pie")){ 1653320782Sasomers strlcpy(sch_extra->name, av[0], 1654320782Sasomers sizeof(sch_extra->name)); 1655301772Struckman sch_extra->oid.subtype = DN_SCH_PARAMS; 1656301772Struckman process_extra_parms(&ac, av, sch_extra, tok); 1657301772Struckman } else { 1658301772Struckman ac--;av++; 1659301772Struckman } 1660301772Struckman#else 1661301772Struckman ac--;av++; 1662301772Struckman#endif 1663204591Sluigi break; 1664204591Sluigi } 1665204591Sluigi 1666187769Sluigi case TOK_WEIGHT: 1667204591Sluigi NEED(fs, "weight is only for flowsets"); 1668204591Sluigi NEED1("weight needs argument\n"); 1669204591Sluigi fs->par[0] = strtol(av[0], &end, 0); 1670187769Sluigi ac--; av++; 1671187769Sluigi break; 1672187769Sluigi 1673204591Sluigi case TOK_LMAX: 1674204591Sluigi NEED(fs, "lmax is only for flowsets"); 1675204591Sluigi NEED1("lmax needs argument\n"); 1676204591Sluigi fs->par[1] = strtol(av[0], &end, 0); 1677204591Sluigi ac--; av++; 1678204591Sluigi break; 1679204591Sluigi 1680204591Sluigi case TOK_PRI: 1681204591Sluigi NEED(fs, "priority is only for flowsets"); 1682204591Sluigi NEED1("priority needs argument\n"); 1683204591Sluigi fs->par[2] = strtol(av[0], &end, 0); 1684204591Sluigi ac--; av++; 1685204591Sluigi break; 1686204591Sluigi 1687204591Sluigi case TOK_SCHED: 1688187769Sluigi case TOK_PIPE: 1689204591Sluigi NEED(fs, "pipe/sched"); 1690204591Sluigi NEED1("pipe/link/sched needs number\n"); 1691204591Sluigi fs->sched_nr = strtoul(av[0], &end, 0); 1692187769Sluigi ac--; av++; 1693187769Sluigi break; 1694187769Sluigi 1695204591Sluigi case TOK_PROFILE: 1696204591Sluigi NEED((!pf), "profile already set"); 1697204591Sluigi NEED(p, "profile"); 1698204591Sluigi { 1699190865Sluigi NEED1("extra delay needs the file name\n"); 1700204591Sluigi pf = o_next(&buf, sizeof(*pf), DN_PROFILE); 1701204591Sluigi load_extra_delays(av[0], pf, p); //XXX can't fail? 1702190865Sluigi --ac; ++av; 1703204591Sluigi } 1704190865Sluigi break; 1705190865Sluigi 1706194930Soleg case TOK_BURST: 1707204591Sluigi NEED(p, "burst"); 1708194930Soleg NEED1("burst needs argument\n"); 1709194930Soleg errno = 0; 1710211499Sdes if (expand_number(av[0], &p->burst) < 0) 1711194930Soleg if (errno != ERANGE) 1712194930Soleg errx(EX_DATAERR, 1713194930Soleg "burst: invalid argument"); 1714204591Sluigi if (errno || p->burst > (1ULL << 48) - 1) 1715194930Soleg errx(EX_DATAERR, 1716194930Soleg "burst: out of range (0..2^48-1)"); 1717194930Soleg ac--; av++; 1718194930Soleg break; 1719194930Soleg 1720187769Sluigi default: 1721187769Sluigi errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 1722187769Sluigi } 1723187769Sluigi } 1724204591Sluigi 1725204591Sluigi /* check validity of parameters */ 1726204591Sluigi if (p) { 1727204591Sluigi if (p->delay > 10000) 1728187769Sluigi errx(EX_DATAERR, "delay must be < 10000"); 1729204591Sluigi if (p->bandwidth == -1) 1730204591Sluigi p->bandwidth = 0; 1731187769Sluigi } 1732204591Sluigi if (fs) { 1733204591Sluigi /* XXX accept a 0 scheduler to keep the default */ 1734204591Sluigi if (fs->flags & DN_QSIZE_BYTES) { 1735187769Sluigi size_t len; 1736187769Sluigi long limit; 1737187769Sluigi 1738187769Sluigi len = sizeof(limit); 1739187769Sluigi if (sysctlbyname("net.inet.ip.dummynet.pipe_byte_limit", 1740187769Sluigi &limit, &len, NULL, 0) == -1) 1741187769Sluigi limit = 1024*1024; 1742204591Sluigi if (fs->qsize > limit) 1743187769Sluigi errx(EX_DATAERR, "queue size must be < %ldB", limit); 1744204591Sluigi } else { 1745187769Sluigi size_t len; 1746187769Sluigi long limit; 1747187769Sluigi 1748187769Sluigi len = sizeof(limit); 1749187769Sluigi if (sysctlbyname("net.inet.ip.dummynet.pipe_slot_limit", 1750187769Sluigi &limit, &len, NULL, 0) == -1) 1751187769Sluigi limit = 100; 1752204591Sluigi if (fs->qsize > limit) 1753187769Sluigi errx(EX_DATAERR, "2 <= queue size <= %ld", limit); 1754204591Sluigi } 1755204591Sluigi 1756301772Struckman#ifdef NEW_AQM 1757301772Struckman if ((fs->flags & DN_IS_ECN) && !((fs->flags & DN_IS_RED)|| 1758301772Struckman (fs->flags & DN_IS_AQM))) 1759301772Struckman errx(EX_USAGE, "ECN can be used with red/gred/" 1760301772Struckman "codel/fq_codel only!"); 1761301772Struckman#else 1762301231Struckman if ((fs->flags & DN_IS_ECN) && !(fs->flags & DN_IS_RED)) 1763301231Struckman errx(EX_USAGE, "enable red/gred for ECN"); 1764301231Struckman 1765301772Struckman#endif 1766301772Struckman 1767204591Sluigi if (fs->flags & DN_IS_RED) { 1768187769Sluigi size_t len; 1769187769Sluigi int lookup_depth, avg_pkt_size; 1770187769Sluigi 1771301231Struckman if (!(fs->flags & DN_IS_ECN) && (fs->min_th >= fs->max_th)) 1772187769Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 1773204591Sluigi fs->min_th, fs->max_th); 1774301231Struckman else if ((fs->flags & DN_IS_ECN) && (fs->min_th > fs->max_th)) 1775301231Struckman errx(EX_DATAERR, "min_th %d must be =< than max_th %d", 1776301231Struckman fs->min_th, fs->max_th); 1777301231Struckman 1778204591Sluigi if (fs->max_th == 0) 1779187769Sluigi errx(EX_DATAERR, "max_th must be > 0"); 1780187769Sluigi 1781187769Sluigi len = sizeof(int); 1782187769Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 1783187769Sluigi &lookup_depth, &len, NULL, 0) == -1) 1784204591Sluigi lookup_depth = 256; 1785187769Sluigi if (lookup_depth == 0) 1786187769Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 1787187769Sluigi " must be greater than zero"); 1788187769Sluigi 1789187769Sluigi len = sizeof(int); 1790187769Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 1791187769Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 1792204591Sluigi avg_pkt_size = 512; 1793187769Sluigi 1794187769Sluigi if (avg_pkt_size == 0) 1795187769Sluigi errx(EX_DATAERR, 1796187769Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 1797187769Sluigi " be greater than zero"); 1798187769Sluigi 1799232347Sluigi#if 0 /* the following computation is now done in the kernel */ 1800187769Sluigi /* 1801187769Sluigi * Ticks needed for sending a medium-sized packet. 1802187769Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 1803187769Sluigi * do not have bandwidth information, because that is stored 1804187769Sluigi * in the parent pipe, and also we have multiple queues 1805187769Sluigi * competing for it. So we set s=0, which is not very 1806187769Sluigi * correct. But on the other hand, why do we want RED with 1807187769Sluigi * WF2Q+ ? 1808187769Sluigi */ 1809187769Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 1810187769Sluigi s = 0; 1811187769Sluigi else 1812187769Sluigi s = (double)ck.hz * avg_pkt_size * 8 / p.bandwidth; 1813187769Sluigi /* 1814187769Sluigi * max idle time (in ticks) before avg queue size becomes 0. 1815187769Sluigi * NOTA: (3/w_q) is approx the value x so that 1816187769Sluigi * (1-w_q)^x < 10^-3. 1817187769Sluigi */ 1818204591Sluigi w_q = ((double)fs->w_q) / (1 << SCALE_RED); 1819187769Sluigi idle = s * 3. / w_q; 1820204591Sluigi fs->lookup_step = (int)idle / lookup_depth; 1821204591Sluigi if (!fs->lookup_step) 1822204591Sluigi fs->lookup_step = 1; 1823187769Sluigi weight = 1 - w_q; 1824204591Sluigi for (t = fs->lookup_step; t > 1; --t) 1825187769Sluigi weight *= 1 - w_q; 1826204591Sluigi fs->lookup_weight = (int)(weight * (1 << SCALE_RED)); 1827232347Sluigi#endif /* code moved in the kernel */ 1828204591Sluigi } 1829187769Sluigi } 1830190865Sluigi 1831204591Sluigi i = do_cmd(IP_DUMMYNET3, base, (char *)buf - (char *)base); 1832190865Sluigi 1833187769Sluigi if (i) 1834187769Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 1835187769Sluigi} 1836204591Sluigi 1837204591Sluigivoid 1838204591Sluigidummynet_flush(void) 1839204591Sluigi{ 1840204591Sluigi struct dn_id oid; 1841204591Sluigi oid_fill(&oid, sizeof(oid), DN_CMD_FLUSH, DN_API_VERSION); 1842204591Sluigi do_cmd(IP_DUMMYNET3, &oid, oid.len); 1843204591Sluigi} 1844204591Sluigi 1845205050Sluigi/* Parse input for 'ipfw [pipe|sched|queue] show [range list]' 1846205050Sluigi * Returns the number of ranges, and possibly stores them 1847205050Sluigi * in the array v of size len. 1848205050Sluigi */ 1849205050Sluigistatic int 1850205050Sluigiparse_range(int ac, char *av[], uint32_t *v, int len) 1851205050Sluigi{ 1852205050Sluigi int n = 0; 1853205050Sluigi char *endptr, *s; 1854205050Sluigi uint32_t base[2]; 1855205050Sluigi 1856205050Sluigi if (v == NULL || len < 2) { 1857205050Sluigi v = base; 1858205050Sluigi len = 2; 1859205050Sluigi } 1860205050Sluigi 1861205050Sluigi for (s = *av; s != NULL; av++, ac--) { 1862205050Sluigi v[0] = strtoul(s, &endptr, 10); 1863205050Sluigi v[1] = (*endptr != '-') ? v[0] : 1864205050Sluigi strtoul(endptr+1, &endptr, 10); 1865205050Sluigi if (*endptr == '\0') { /* prepare for next round */ 1866205050Sluigi s = (ac > 0) ? *(av+1) : NULL; 1867205050Sluigi } else { 1868205050Sluigi if (*endptr != ',') { 1869205050Sluigi warn("invalid number: %s", s); 1870205050Sluigi s = ++endptr; 1871205050Sluigi continue; 1872205050Sluigi } 1873205050Sluigi /* continue processing from here */ 1874205050Sluigi s = ++endptr; 1875205050Sluigi ac++; 1876205050Sluigi av--; 1877205050Sluigi } 1878205050Sluigi if (v[1] < v[0] || 1879238900Sluigi v[1] >= DN_MAX_ID-1 || 1880238900Sluigi v[1] >= DN_MAX_ID-1) { 1881205050Sluigi continue; /* invalid entry */ 1882205050Sluigi } 1883205050Sluigi n++; 1884205050Sluigi /* translate if 'pipe list' */ 1885205050Sluigi if (co.do_pipe == 1) { 1886205050Sluigi v[0] += DN_MAX_ID; 1887205050Sluigi v[1] += DN_MAX_ID; 1888205050Sluigi } 1889205050Sluigi v = (n*2 < len) ? v + 2 : base; 1890205050Sluigi } 1891205050Sluigi return n; 1892205050Sluigi} 1893205050Sluigi 1894204591Sluigi/* main entry point for dummynet list functions. co.do_pipe indicates 1895204591Sluigi * which function we want to support. 1896205050Sluigi * av may contain filtering arguments, either individual entries 1897205050Sluigi * or ranges, or lists (space or commas are valid separators). 1898205050Sluigi * Format for a range can be n1-n2 or n3 n4 n5 ... 1899205050Sluigi * In a range n1 must be <= n2, otherwise the range is ignored. 1900205050Sluigi * A number 'n4' is translate in a range 'n4-n4' 1901205050Sluigi * All number must be > 0 and < DN_MAX_ID-1 1902204591Sluigi */ 1903204591Sluigivoid 1904204591Sluigidummynet_list(int ac, char *av[], int show_counters) 1905204591Sluigi{ 1906205050Sluigi struct dn_id *oid, *x = NULL; 1907238900Sluigi int ret, i; 1908205050Sluigi int n; /* # of ranges */ 1909238900Sluigi u_int buflen, l; 1910238900Sluigi u_int max_size; /* largest obj passed up */ 1911204591Sluigi 1912238900Sluigi (void)show_counters; // XXX unused, but we should use it. 1913205050Sluigi ac--; 1914205050Sluigi av++; /* skip 'list' | 'show' word */ 1915205050Sluigi 1916205050Sluigi n = parse_range(ac, av, NULL, 0); /* Count # of ranges. */ 1917205050Sluigi 1918205050Sluigi /* Allocate space to store ranges */ 1919205050Sluigi l = sizeof(*oid) + sizeof(uint32_t) * n * 2; 1920205050Sluigi oid = safe_calloc(1, l); 1921205050Sluigi oid_fill(oid, l, DN_CMD_GET, DN_API_VERSION); 1922205050Sluigi 1923205050Sluigi if (n > 0) /* store ranges in idx */ 1924205050Sluigi parse_range(ac, av, (uint32_t *)(oid + 1), n*2); 1925205050Sluigi /* 1926205050Sluigi * Compute the size of the largest object returned. If the 1927205050Sluigi * response leaves at least this much spare space in the 1928205050Sluigi * buffer, then surely the response is complete; otherwise 1929205050Sluigi * there might be a risk of truncation and we will need to 1930205050Sluigi * retry with a larger buffer. 1931205050Sluigi * XXX don't bother with smaller structs. 1932205050Sluigi */ 1933205050Sluigi max_size = sizeof(struct dn_fs); 1934205050Sluigi if (max_size < sizeof(struct dn_sch)) 1935205050Sluigi max_size = sizeof(struct dn_sch); 1936205050Sluigi if (max_size < sizeof(struct dn_flow)) 1937205050Sluigi max_size = sizeof(struct dn_flow); 1938205050Sluigi 1939204591Sluigi switch (co.do_pipe) { 1940204591Sluigi case 1: 1941205050Sluigi oid->subtype = DN_LINK; /* list pipe */ 1942204591Sluigi break; 1943204591Sluigi case 2: 1944205050Sluigi oid->subtype = DN_FS; /* list queue */ 1945204591Sluigi break; 1946204591Sluigi case 3: 1947205050Sluigi oid->subtype = DN_SCH; /* list sched */ 1948204591Sluigi break; 1949204591Sluigi } 1950204718Sluigi 1951205050Sluigi /* 1952205050Sluigi * Ask the kernel an estimate of the required space (result 1953205050Sluigi * in oid.id), unless we are requesting a subset of objects, 1954205050Sluigi * in which case the kernel does not give an exact answer. 1955205050Sluigi * In any case, space might grow in the meantime due to the 1956205050Sluigi * creation of new queues, so we must be prepared to retry. 1957204718Sluigi */ 1958205050Sluigi if (n > 0) { 1959205050Sluigi buflen = 4*1024; 1960205050Sluigi } else { 1961205050Sluigi ret = do_cmd(-IP_DUMMYNET3, oid, (uintptr_t)&l); 1962205050Sluigi if (ret != 0 || oid->id <= sizeof(*oid)) 1963205050Sluigi goto done; 1964205050Sluigi buflen = oid->id + max_size; 1965205050Sluigi oid->len = sizeof(*oid); /* restore */ 1966205050Sluigi } 1967205050Sluigi /* Try a few times, until the buffer fits */ 1968205050Sluigi for (i = 0; i < 20; i++) { 1969205050Sluigi l = buflen; 1970204718Sluigi x = safe_realloc(x, l); 1971205050Sluigi bcopy(oid, x, oid->len); 1972205050Sluigi ret = do_cmd(-IP_DUMMYNET3, x, (uintptr_t)&l); 1973205050Sluigi if (ret != 0 || x->id <= sizeof(*oid)) 1974205050Sluigi goto done; /* no response */ 1975205050Sluigi if (l + max_size <= buflen) 1976204718Sluigi break; /* ok */ 1977205050Sluigi buflen *= 2; /* double for next attempt */ 1978204718Sluigi } 1979204591Sluigi list_pipes(x, O_NEXT(x, l)); 1980205050Sluigidone: 1981205050Sluigi if (x) 1982205050Sluigi free(x); 1983205050Sluigi free(oid); 1984204591Sluigi} 1985