1 /* $OpenBSD: pfctl_altq.c,v 1.83 2004/03/14 21:51:44 dhartmei Exp $ */ 2 /* $DragonFly: src/usr.sbin/pfctl/pfctl_altq.c,v 1.4 2008/11/03 00:25:45 pavalos Exp $ */ 3 4 /* 5 * Copyright (c) 2002 6 * Sony Computer Science Laboratories Inc. 7 * Copyright (c) 2002, 2003 Henning Brauer <henning@openbsd.org> 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 #include <sys/param.h> 23 #include <sys/ioctl.h> 24 #include <sys/socket.h> 25 #include <sys/sysctl.h> 26 27 #include <net/if.h> 28 #include <net/if_mib.h> 29 #include <netinet/in.h> 30 #include <net/pf/pfvar.h> 31 32 #include <err.h> 33 #include <errno.h> 34 #include <limits.h> 35 #include <math.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 #include <unistd.h> 40 41 #include <net/altq/altq.h> 42 #include <net/altq/altq_cbq.h> 43 #include <net/altq/altq_priq.h> 44 #include <net/altq/altq_hfsc.h> 45 #include <net/altq/altq_fairq.h> 46 47 #include "pfctl_parser.h" 48 #include "pfctl.h" 49 50 #define is_sc_null(sc) (((sc) == NULL) || ((sc)->m1 == 0 && (sc)->m2 == 0)) 51 52 TAILQ_HEAD(altqs, pf_altq) altqs = TAILQ_HEAD_INITIALIZER(altqs); 53 LIST_HEAD(gen_sc, segment) rtsc, lssc; 54 55 struct pf_altq *qname_to_pfaltq(const char *, const char *); 56 u_int32_t qname_to_qid(const char *); 57 58 static int eval_pfqueue_cbq(struct pfctl *, struct pf_altq *); 59 static int cbq_compute_idletime(struct pfctl *, struct pf_altq *); 60 static int check_commit_cbq(int, int, struct pf_altq *); 61 static int print_cbq_opts(const struct pf_altq *); 62 63 static int eval_pfqueue_priq(struct pfctl *, struct pf_altq *); 64 static int check_commit_priq(int, int, struct pf_altq *); 65 static int print_priq_opts(const struct pf_altq *); 66 67 static int eval_pfqueue_hfsc(struct pfctl *, struct pf_altq *); 68 static int check_commit_hfsc(int, int, struct pf_altq *); 69 static int print_hfsc_opts(const struct pf_altq *, 70 const struct node_queue_opt *); 71 72 static int eval_pfqueue_fairq(struct pfctl *, struct pf_altq *); 73 static int print_fairq_opts(const struct pf_altq *, 74 const struct node_queue_opt *); 75 static int check_commit_fairq(int, int, struct pf_altq *); 76 77 static void gsc_add_sc(struct gen_sc *, struct service_curve *); 78 static int is_gsc_under_sc(struct gen_sc *, 79 struct service_curve *); 80 static void gsc_destroy(struct gen_sc *); 81 static struct segment *gsc_getentry(struct gen_sc *, double); 82 static int gsc_add_seg(struct gen_sc *, double, double, double, 83 double); 84 static double sc_x2y(struct service_curve *, double); 85 86 u_int32_t getifspeed(const char *); 87 u_long getifmtu(char *); 88 int eval_queue_opts(struct pf_altq *, struct node_queue_opt *, 89 u_int32_t); 90 u_int32_t eval_bwspec(struct node_queue_bw *, u_int32_t); 91 void print_hfsc_sc(const char *, u_int, u_int, u_int, 92 const struct node_hfsc_sc *); 93 void print_fairq_sc(const char *, u_int, u_int, u_int, 94 const struct node_fairq_sc *); 95 96 void 97 pfaltq_store(struct pf_altq *a) 98 { 99 struct pf_altq *altq; 100 101 if ((altq = malloc(sizeof(*altq))) == NULL) 102 err(1, "malloc"); 103 memcpy(altq, a, sizeof(struct pf_altq)); 104 TAILQ_INSERT_TAIL(&altqs, altq, entries); 105 } 106 107 void 108 pfaltq_free(struct pf_altq *a) 109 { 110 struct pf_altq *altq; 111 112 TAILQ_FOREACH(altq, &altqs, entries) { 113 if (strncmp(a->ifname, altq->ifname, IFNAMSIZ) == 0 && 114 strncmp(a->qname, altq->qname, PF_QNAME_SIZE) == 0) { 115 TAILQ_REMOVE(&altqs, altq, entries); 116 free(altq); 117 return; 118 } 119 } 120 } 121 122 struct pf_altq * 123 pfaltq_lookup(const char *ifname) 124 { 125 struct pf_altq *altq; 126 127 TAILQ_FOREACH(altq, &altqs, entries) { 128 if (strncmp(ifname, altq->ifname, IFNAMSIZ) == 0 && 129 altq->qname[0] == 0) 130 return (altq); 131 } 132 return (NULL); 133 } 134 135 struct pf_altq * 136 qname_to_pfaltq(const char *qname, const char *ifname) 137 { 138 struct pf_altq *altq; 139 140 TAILQ_FOREACH(altq, &altqs, entries) { 141 if (strncmp(ifname, altq->ifname, IFNAMSIZ) == 0 && 142 strncmp(qname, altq->qname, PF_QNAME_SIZE) == 0) 143 return (altq); 144 } 145 return (NULL); 146 } 147 148 u_int32_t 149 qname_to_qid(const char *qname) 150 { 151 struct pf_altq *altq; 152 153 /* 154 * We guarantee that same named queues on different interfaces 155 * have the same qid, so we do NOT need to limit matching on 156 * one interface! 157 */ 158 159 TAILQ_FOREACH(altq, &altqs, entries) { 160 if (strncmp(qname, altq->qname, PF_QNAME_SIZE) == 0) 161 return (altq->qid); 162 } 163 return (0); 164 } 165 166 void 167 print_altq(const struct pf_altq *a, unsigned level, struct node_queue_bw *bw, 168 struct node_queue_opt *qopts) 169 { 170 if (a->qname[0] != 0) { 171 print_queue(a, level, bw, 0, qopts); 172 return; 173 } 174 175 printf("altq on %s ", a->ifname); 176 177 switch (a->scheduler) { 178 case ALTQT_CBQ: 179 if (!print_cbq_opts(a)) 180 printf("cbq "); 181 break; 182 case ALTQT_PRIQ: 183 if (!print_priq_opts(a)) 184 printf("priq "); 185 break; 186 case ALTQT_HFSC: 187 if (!print_hfsc_opts(a, qopts)) 188 printf("hfsc "); 189 break; 190 case ALTQT_FAIRQ: 191 if (!print_fairq_opts(a, qopts)) 192 printf("hfsc "); 193 break; 194 } 195 196 if (bw != NULL && bw->bw_percent > 0) { 197 if (bw->bw_percent < 100) 198 printf("bandwidth %u%% ", bw->bw_percent); 199 } else 200 printf("bandwidth %s ", rate2str((double)a->ifbandwidth)); 201 202 if (a->qlimit != DEFAULT_QLIMIT) 203 printf("qlimit %u ", a->qlimit); 204 printf("tbrsize %u ", a->tbrsize); 205 } 206 207 void 208 print_queue(const struct pf_altq *a, unsigned level, struct node_queue_bw *bw, 209 int print_interface, struct node_queue_opt *qopts) 210 { 211 unsigned i; 212 213 printf("queue "); 214 for (i = 0; i < level; ++i) 215 printf(" "); 216 printf("%s ", a->qname); 217 if (print_interface) 218 printf("on %s ", a->ifname); 219 if (a->scheduler == ALTQT_CBQ || a->scheduler == ALTQT_HFSC || 220 a->scheduler == ALTQT_FAIRQ) { 221 if (bw != NULL && bw->bw_percent > 0) { 222 if (bw->bw_percent < 100) 223 printf("bandwidth %u%% ", bw->bw_percent); 224 } else 225 printf("bandwidth %s ", rate2str((double)a->bandwidth)); 226 } 227 if (a->priority != DEFAULT_PRIORITY) 228 printf("priority %u ", a->priority); 229 if (a->qlimit != DEFAULT_QLIMIT) 230 printf("qlimit %u ", a->qlimit); 231 switch (a->scheduler) { 232 case ALTQT_CBQ: 233 print_cbq_opts(a); 234 break; 235 case ALTQT_PRIQ: 236 print_priq_opts(a); 237 break; 238 case ALTQT_HFSC: 239 print_hfsc_opts(a, qopts); 240 break; 241 case ALTQT_FAIRQ: 242 print_fairq_opts(a, qopts); 243 break; 244 } 245 } 246 247 /* 248 * eval_pfaltq computes the discipline parameters. 249 */ 250 int 251 eval_pfaltq(struct pfctl *pf __unused, struct pf_altq *pa, 252 struct node_queue_bw *bw, struct node_queue_opt *opts) 253 { 254 u_int rate, size, errors = 0; 255 256 if (bw->bw_absolute > 0) 257 pa->ifbandwidth = bw->bw_absolute; 258 else 259 if ((rate = getifspeed(pa->ifname)) == 0) { 260 fprintf(stderr, "cannot determine interface bandwidth " 261 "for %s, specify an absolute bandwidth\n", 262 pa->ifname); 263 errors++; 264 } else if ((pa->ifbandwidth = eval_bwspec(bw, rate)) == 0) 265 pa->ifbandwidth = rate; 266 267 errors += eval_queue_opts(pa, opts, pa->ifbandwidth); 268 269 /* if tbrsize is not specified, use heuristics */ 270 if (pa->tbrsize == 0) { 271 rate = pa->ifbandwidth; 272 if (rate <= 1 * 1000 * 1000) 273 size = 1; 274 else if (rate <= 10 * 1000 * 1000) 275 size = 4; 276 else if (rate <= 200 * 1000 * 1000) 277 size = 8; 278 else 279 size = 24; 280 size = size * getifmtu(pa->ifname); 281 if (size > 0xffff) 282 size = 0xffff; 283 pa->tbrsize = size; 284 } 285 return (errors); 286 } 287 288 /* 289 * check_commit_altq does consistency check for each interface 290 */ 291 int 292 check_commit_altq(int dev, int opts) 293 { 294 struct pf_altq *altq; 295 int error = 0; 296 297 /* call the discipline check for each interface. */ 298 TAILQ_FOREACH(altq, &altqs, entries) { 299 if (altq->qname[0] == 0) { 300 switch (altq->scheduler) { 301 case ALTQT_CBQ: 302 error = check_commit_cbq(dev, opts, altq); 303 break; 304 case ALTQT_PRIQ: 305 error = check_commit_priq(dev, opts, altq); 306 break; 307 case ALTQT_HFSC: 308 error = check_commit_hfsc(dev, opts, altq); 309 break; 310 case ALTQT_FAIRQ: 311 error = check_commit_fairq(dev, opts, altq); 312 break; 313 default: 314 break; 315 } 316 } 317 } 318 return (error); 319 } 320 321 /* 322 * eval_pfqueue computes the queue parameters. 323 */ 324 int 325 eval_pfqueue(struct pfctl *pf, struct pf_altq *pa, struct node_queue_bw *bw, 326 struct node_queue_opt *opts) 327 { 328 /* should be merged with expand_queue */ 329 struct pf_altq *if_pa, *parent; 330 int error = 0; 331 332 /* find the corresponding interface and copy fields used by queues */ 333 if ((if_pa = pfaltq_lookup(pa->ifname)) == NULL) { 334 fprintf(stderr, "altq not defined on %s\n", pa->ifname); 335 return (1); 336 } 337 pa->scheduler = if_pa->scheduler; 338 pa->ifbandwidth = if_pa->ifbandwidth; 339 340 if (qname_to_pfaltq(pa->qname, pa->ifname) != NULL) { 341 fprintf(stderr, "queue %s already exists on interface %s\n", 342 pa->qname, pa->ifname); 343 return (1); 344 } 345 pa->qid = qname_to_qid(pa->qname); 346 347 parent = NULL; 348 if (pa->parent[0] != 0) { 349 parent = qname_to_pfaltq(pa->parent, pa->ifname); 350 if (parent == NULL) { 351 fprintf(stderr, "parent %s not found for %s\n", 352 pa->parent, pa->qname); 353 return (1); 354 } 355 pa->parent_qid = parent->qid; 356 } 357 if (pa->qlimit == 0) 358 pa->qlimit = DEFAULT_QLIMIT; 359 360 if (pa->scheduler == ALTQT_CBQ || pa->scheduler == ALTQT_HFSC || 361 pa->scheduler == ALTQT_FAIRQ) { 362 if ((pa->bandwidth = eval_bwspec(bw, 363 parent == NULL ? 0 : parent->bandwidth)) == 0) { 364 fprintf(stderr, "bandwidth for %s invalid (%d / %d)\n", 365 pa->qname, bw->bw_absolute, bw->bw_percent); 366 return (1); 367 } 368 369 if (pa->bandwidth > pa->ifbandwidth) { 370 fprintf(stderr, "bandwidth for %s higher than " 371 "interface\n", pa->qname); 372 return (1); 373 } 374 if (parent != NULL && pa->bandwidth > parent->bandwidth) { 375 fprintf(stderr, "bandwidth for %s higher than parent\n", 376 pa->qname); 377 return (1); 378 } 379 } 380 381 if (eval_queue_opts(pa, opts, parent == NULL? 0 : parent->bandwidth)) 382 return (1); 383 384 switch (pa->scheduler) { 385 case ALTQT_CBQ: 386 error = eval_pfqueue_cbq(pf, pa); 387 break; 388 case ALTQT_PRIQ: 389 error = eval_pfqueue_priq(pf, pa); 390 break; 391 case ALTQT_HFSC: 392 error = eval_pfqueue_hfsc(pf, pa); 393 break; 394 case ALTQT_FAIRQ: 395 error = eval_pfqueue_fairq(pf, pa); 396 break; 397 default: 398 break; 399 } 400 return (error); 401 } 402 403 /* 404 * CBQ support functions 405 */ 406 #define RM_FILTER_GAIN 5 /* log2 of gain, e.g., 5 => 31/32 */ 407 #define RM_NS_PER_SEC (1000000000) 408 409 static int 410 eval_pfqueue_cbq(struct pfctl *pf, struct pf_altq *pa) 411 { 412 struct cbq_opts *opts; 413 u_int ifmtu; 414 415 if (pa->priority >= CBQ_MAXPRI) { 416 warnx("priority out of range: max %d", CBQ_MAXPRI - 1); 417 return (-1); 418 } 419 420 ifmtu = getifmtu(pa->ifname); 421 opts = &pa->pq_u.cbq_opts; 422 423 if (opts->pktsize == 0) { /* use default */ 424 opts->pktsize = ifmtu; 425 if (opts->pktsize > MCLBYTES) /* do what TCP does */ 426 opts->pktsize &= ~MCLBYTES; 427 } else if (opts->pktsize > ifmtu) 428 opts->pktsize = ifmtu; 429 if (opts->maxpktsize == 0) /* use default */ 430 opts->maxpktsize = ifmtu; 431 else if (opts->maxpktsize > ifmtu) 432 opts->pktsize = ifmtu; 433 434 if (opts->pktsize > opts->maxpktsize) 435 opts->pktsize = opts->maxpktsize; 436 437 if (pa->parent[0] == 0) 438 opts->flags |= (CBQCLF_ROOTCLASS | CBQCLF_WRR); 439 440 cbq_compute_idletime(pf, pa); 441 return (0); 442 } 443 444 /* 445 * compute ns_per_byte, maxidle, minidle, and offtime 446 */ 447 static int 448 cbq_compute_idletime(struct pfctl *pf, struct pf_altq *pa) 449 { 450 struct cbq_opts *opts; 451 double maxidle_s, maxidle, minidle; 452 double offtime, nsPerByte, ifnsPerByte, ptime, cptime; 453 double z, g, f, gton, gtom; 454 u_int minburst, maxburst; 455 456 opts = &pa->pq_u.cbq_opts; 457 ifnsPerByte = (1.0 / (double)pa->ifbandwidth) * RM_NS_PER_SEC * 8; 458 minburst = opts->minburst; 459 maxburst = opts->maxburst; 460 461 if (pa->bandwidth == 0) 462 f = 0.0001; /* small enough? */ 463 else 464 f = ((double) pa->bandwidth / (double) pa->ifbandwidth); 465 466 nsPerByte = ifnsPerByte / f; 467 ptime = (double)opts->pktsize * ifnsPerByte; 468 cptime = ptime * (1.0 - f) / f; 469 470 if (nsPerByte * (double)opts->maxpktsize > (double)INT_MAX) { 471 /* 472 * this causes integer overflow in kernel! 473 * (bandwidth < 6Kbps when max_pkt_size=1500) 474 */ 475 if (pa->bandwidth != 0 && (pf->opts & PF_OPT_QUIET) == 0) 476 warnx("queue bandwidth must be larger than %s", 477 rate2str(ifnsPerByte * (double)opts->maxpktsize / 478 (double)INT_MAX * (double)pa->ifbandwidth)); 479 fprintf(stderr, "cbq: queue %s is too slow!\n", 480 pa->qname); 481 nsPerByte = (double)(INT_MAX / opts->maxpktsize); 482 } 483 484 if (maxburst == 0) { /* use default */ 485 if (cptime > 10.0 * 1000000) 486 maxburst = 4; 487 else 488 maxburst = 16; 489 } 490 if (minburst == 0) /* use default */ 491 minburst = 2; 492 if (minburst > maxburst) 493 minburst = maxburst; 494 495 z = (double)(1 << RM_FILTER_GAIN); 496 g = (1.0 - 1.0 / z); 497 gton = pow(g, (double)maxburst); 498 gtom = pow(g, (double)(minburst-1)); 499 maxidle = ((1.0 / f - 1.0) * ((1.0 - gton) / gton)); 500 maxidle_s = (1.0 - g); 501 if (maxidle > maxidle_s) 502 maxidle = ptime * maxidle; 503 else 504 maxidle = ptime * maxidle_s; 505 if (minburst) 506 offtime = cptime * (1.0 + 1.0/(1.0 - g) * (1.0 - gtom) / gtom); 507 else 508 offtime = cptime; 509 minidle = -((double)opts->maxpktsize * (double)nsPerByte); 510 511 /* scale parameters */ 512 maxidle = ((maxidle * 8.0) / nsPerByte) * 513 pow(2.0, (double)RM_FILTER_GAIN); 514 offtime = (offtime * 8.0) / nsPerByte * 515 pow(2.0, (double)RM_FILTER_GAIN); 516 minidle = ((minidle * 8.0) / nsPerByte) * 517 pow(2.0, (double)RM_FILTER_GAIN); 518 519 maxidle = maxidle / 1000.0; 520 offtime = offtime / 1000.0; 521 minidle = minidle / 1000.0; 522 523 opts->minburst = minburst; 524 opts->maxburst = maxburst; 525 opts->ns_per_byte = (u_int)nsPerByte; 526 opts->maxidle = (u_int)fabs(maxidle); 527 opts->minidle = (int)minidle; 528 opts->offtime = (u_int)fabs(offtime); 529 530 return (0); 531 } 532 533 static int 534 check_commit_cbq(int dev __unused, int opts __unused, struct pf_altq *pa) 535 { 536 struct pf_altq *altq; 537 int root_class, default_class; 538 int error = 0; 539 540 /* 541 * check if cbq has one root queue and one default queue 542 * for this interface 543 */ 544 root_class = default_class = 0; 545 TAILQ_FOREACH(altq, &altqs, entries) { 546 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 547 continue; 548 if (altq->qname[0] == 0) /* this is for interface */ 549 continue; 550 if (altq->pq_u.cbq_opts.flags & CBQCLF_ROOTCLASS) 551 root_class++; 552 if (altq->pq_u.cbq_opts.flags & CBQCLF_DEFCLASS) 553 default_class++; 554 } 555 if (root_class != 1) { 556 warnx("should have one root queue on %s", pa->ifname); 557 error++; 558 } 559 if (default_class != 1) { 560 warnx("should have one default queue on %s", pa->ifname); 561 error++; 562 } 563 return (error); 564 } 565 566 static int 567 print_cbq_opts(const struct pf_altq *a) 568 { 569 const struct cbq_opts *opts; 570 571 opts = &a->pq_u.cbq_opts; 572 if (opts->flags) { 573 printf("cbq("); 574 if (opts->flags & CBQCLF_RED) 575 printf(" red"); 576 if (opts->flags & CBQCLF_ECN) 577 printf(" ecn"); 578 if (opts->flags & CBQCLF_RIO) 579 printf(" rio"); 580 if (opts->flags & CBQCLF_CLEARDSCP) 581 printf(" cleardscp"); 582 if (opts->flags & CBQCLF_BORROW) 583 printf(" borrow"); 584 if (opts->flags & CBQCLF_WRR) 585 printf(" wrr"); 586 if (opts->flags & CBQCLF_EFFICIENT) 587 printf(" efficient"); 588 if (opts->flags & CBQCLF_ROOTCLASS) 589 printf(" root"); 590 if (opts->flags & CBQCLF_DEFCLASS) 591 printf(" default"); 592 printf(" ) "); 593 594 return (1); 595 } else 596 return (0); 597 } 598 599 /* 600 * PRIQ support functions 601 */ 602 static int 603 eval_pfqueue_priq(struct pfctl *pf __unused, struct pf_altq *pa) 604 { 605 struct pf_altq *altq; 606 607 if (pa->priority >= PRIQ_MAXPRI) { 608 warnx("priority out of range: max %d", PRIQ_MAXPRI - 1); 609 return (-1); 610 } 611 /* the priority should be unique for the interface */ 612 TAILQ_FOREACH(altq, &altqs, entries) { 613 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) == 0 && 614 altq->qname[0] != 0 && altq->priority == pa->priority) { 615 warnx("%s and %s have the same priority", 616 altq->qname, pa->qname); 617 return (-1); 618 } 619 } 620 621 return (0); 622 } 623 624 static int 625 check_commit_priq(int dev __unused, int opts __unused, struct pf_altq *pa) 626 { 627 struct pf_altq *altq; 628 int default_class; 629 int error = 0; 630 631 /* 632 * check if priq has one default class for this interface 633 */ 634 default_class = 0; 635 TAILQ_FOREACH(altq, &altqs, entries) { 636 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 637 continue; 638 if (altq->qname[0] == 0) /* this is for interface */ 639 continue; 640 if (altq->pq_u.priq_opts.flags & PRCF_DEFAULTCLASS) 641 default_class++; 642 } 643 if (default_class != 1) { 644 warnx("should have one default queue on %s", pa->ifname); 645 error++; 646 } 647 return (error); 648 } 649 650 static int 651 print_priq_opts(const struct pf_altq *a) 652 { 653 const struct priq_opts *opts; 654 655 opts = &a->pq_u.priq_opts; 656 657 if (opts->flags) { 658 printf("priq("); 659 if (opts->flags & PRCF_RED) 660 printf(" red"); 661 if (opts->flags & PRCF_ECN) 662 printf(" ecn"); 663 if (opts->flags & PRCF_RIO) 664 printf(" rio"); 665 if (opts->flags & PRCF_CLEARDSCP) 666 printf(" cleardscp"); 667 if (opts->flags & PRCF_DEFAULTCLASS) 668 printf(" default"); 669 printf(" ) "); 670 671 return (1); 672 } else 673 return (0); 674 } 675 676 /* 677 * HFSC support functions 678 */ 679 static int 680 eval_pfqueue_hfsc(struct pfctl *pf __unused, struct pf_altq *pa) 681 { 682 struct pf_altq *altq, *parent; 683 struct hfsc_opts *opts; 684 struct service_curve sc; 685 686 opts = &pa->pq_u.hfsc_opts; 687 688 if (pa->parent[0] == 0) { 689 /* root queue */ 690 opts->lssc_m1 = pa->ifbandwidth; 691 opts->lssc_m2 = pa->ifbandwidth; 692 opts->lssc_d = 0; 693 return (0); 694 } 695 696 LIST_INIT(&rtsc); 697 LIST_INIT(&lssc); 698 699 /* if link_share is not specified, use bandwidth */ 700 if (opts->lssc_m2 == 0) 701 opts->lssc_m2 = pa->bandwidth; 702 703 if ((opts->rtsc_m1 > 0 && opts->rtsc_m2 == 0) || 704 (opts->lssc_m1 > 0 && opts->lssc_m2 == 0) || 705 (opts->ulsc_m1 > 0 && opts->ulsc_m2 == 0)) { 706 warnx("m2 is zero for %s", pa->qname); 707 return (-1); 708 } 709 710 if ((opts->rtsc_m1 < opts->rtsc_m2 && opts->rtsc_m1 != 0) || 711 (opts->rtsc_m1 < opts->rtsc_m2 && opts->rtsc_m1 != 0) || 712 (opts->rtsc_m1 < opts->rtsc_m2 && opts->rtsc_m1 != 0)) { 713 warnx("m1 must be zero for convex curve: %s", pa->qname); 714 return (-1); 715 } 716 717 /* 718 * admission control: 719 * for the real-time service curve, the sum of the service curves 720 * should not exceed 80% of the interface bandwidth. 20% is reserved 721 * not to over-commit the actual interface bandwidth. 722 * for the link-sharing service curve, the sum of the child service 723 * curve should not exceed the parent service curve. 724 * for the upper-limit service curve, the assigned bandwidth should 725 * be smaller than the interface bandwidth, and the upper-limit should 726 * be larger than the real-time service curve when both are defined. 727 */ 728 parent = qname_to_pfaltq(pa->parent, pa->ifname); 729 if (parent == NULL) 730 errx(1, "parent %s not found for %s", pa->parent, pa->qname); 731 732 TAILQ_FOREACH(altq, &altqs, entries) { 733 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 734 continue; 735 if (altq->qname[0] == 0) /* this is for interface */ 736 continue; 737 738 /* if the class has a real-time service curve, add it. */ 739 if (opts->rtsc_m2 != 0 && altq->pq_u.hfsc_opts.rtsc_m2 != 0) { 740 sc.m1 = altq->pq_u.hfsc_opts.rtsc_m1; 741 sc.d = altq->pq_u.hfsc_opts.rtsc_d; 742 sc.m2 = altq->pq_u.hfsc_opts.rtsc_m2; 743 gsc_add_sc(&rtsc, &sc); 744 } 745 746 if (strncmp(altq->parent, pa->parent, PF_QNAME_SIZE) != 0) 747 continue; 748 749 /* if the class has a link-sharing service curve, add it. */ 750 if (opts->lssc_m2 != 0 && altq->pq_u.hfsc_opts.lssc_m2 != 0) { 751 sc.m1 = altq->pq_u.hfsc_opts.lssc_m1; 752 sc.d = altq->pq_u.hfsc_opts.lssc_d; 753 sc.m2 = altq->pq_u.hfsc_opts.lssc_m2; 754 gsc_add_sc(&lssc, &sc); 755 } 756 } 757 758 /* check the real-time service curve. reserve 20% of interface bw */ 759 if (opts->rtsc_m2 != 0) { 760 sc.m1 = 0; 761 sc.d = 0; 762 sc.m2 = pa->ifbandwidth / 100 * 80; 763 if (!is_gsc_under_sc(&rtsc, &sc)) { 764 warnx("real-time sc exceeds the interface bandwidth"); 765 goto err_ret; 766 } 767 } 768 769 /* check the link-sharing service curve. */ 770 if (opts->lssc_m2 != 0) { 771 sc.m1 = parent->pq_u.hfsc_opts.lssc_m1; 772 sc.d = parent->pq_u.hfsc_opts.lssc_d; 773 sc.m2 = parent->pq_u.hfsc_opts.lssc_m2; 774 if (!is_gsc_under_sc(&lssc, &sc)) { 775 warnx("link-sharing sc exceeds parent's sc"); 776 goto err_ret; 777 } 778 } 779 780 /* check the upper-limit service curve. */ 781 if (opts->ulsc_m2 != 0) { 782 if (opts->ulsc_m1 > pa->ifbandwidth || 783 opts->ulsc_m2 > pa->ifbandwidth) { 784 warnx("upper-limit larger than interface bandwidth"); 785 goto err_ret; 786 } 787 if (opts->rtsc_m2 != 0 && opts->rtsc_m2 > opts->ulsc_m2) { 788 warnx("upper-limit sc smaller than real-time sc"); 789 goto err_ret; 790 } 791 } 792 793 gsc_destroy(&rtsc); 794 gsc_destroy(&lssc); 795 796 return (0); 797 798 err_ret: 799 gsc_destroy(&rtsc); 800 gsc_destroy(&lssc); 801 return (-1); 802 } 803 804 /* 805 * FAIRQ support functions 806 */ 807 static int 808 eval_pfqueue_fairq(struct pfctl *pf __unused, struct pf_altq *pa) 809 { 810 struct pf_altq *altq, *parent; 811 struct fairq_opts *opts; 812 struct service_curve sc; 813 814 opts = &pa->pq_u.fairq_opts; 815 816 if (pa->parent[0] == 0) { 817 /* root queue */ 818 opts->lssc_m1 = pa->ifbandwidth; 819 opts->lssc_m2 = pa->ifbandwidth; 820 opts->lssc_d = 0; 821 return (0); 822 } 823 824 LIST_INIT(&lssc); 825 826 /* if link_share is not specified, use bandwidth */ 827 if (opts->lssc_m2 == 0) 828 opts->lssc_m2 = pa->bandwidth; 829 830 /* 831 * admission control: 832 * for the real-time service curve, the sum of the service curves 833 * should not exceed 80% of the interface bandwidth. 20% is reserved 834 * not to over-commit the actual interface bandwidth. 835 * for the link-sharing service curve, the sum of the child service 836 * curve should not exceed the parent service curve. 837 * for the upper-limit service curve, the assigned bandwidth should 838 * be smaller than the interface bandwidth, and the upper-limit should 839 * be larger than the real-time service curve when both are defined. 840 */ 841 parent = qname_to_pfaltq(pa->parent, pa->ifname); 842 if (parent == NULL) 843 errx(1, "parent %s not found for %s", pa->parent, pa->qname); 844 845 TAILQ_FOREACH(altq, &altqs, entries) { 846 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 847 continue; 848 if (altq->qname[0] == 0) /* this is for interface */ 849 continue; 850 851 if (strncmp(altq->parent, pa->parent, PF_QNAME_SIZE) != 0) 852 continue; 853 854 /* if the class has a link-sharing service curve, add it. */ 855 if (opts->lssc_m2 != 0 && altq->pq_u.fairq_opts.lssc_m2 != 0) { 856 sc.m1 = altq->pq_u.fairq_opts.lssc_m1; 857 sc.d = altq->pq_u.fairq_opts.lssc_d; 858 sc.m2 = altq->pq_u.fairq_opts.lssc_m2; 859 gsc_add_sc(&lssc, &sc); 860 } 861 } 862 863 /* check the link-sharing service curve. */ 864 if (opts->lssc_m2 != 0) { 865 sc.m1 = parent->pq_u.fairq_opts.lssc_m1; 866 sc.d = parent->pq_u.fairq_opts.lssc_d; 867 sc.m2 = parent->pq_u.fairq_opts.lssc_m2; 868 if (!is_gsc_under_sc(&lssc, &sc)) { 869 warnx("link-sharing sc exceeds parent's sc"); 870 goto err_ret; 871 } 872 } 873 874 gsc_destroy(&lssc); 875 876 return (0); 877 878 err_ret: 879 gsc_destroy(&lssc); 880 return (-1); 881 } 882 883 static int 884 check_commit_hfsc(int dev __unused, int opts __unused, struct pf_altq *pa) 885 { 886 struct pf_altq *altq, *def = NULL; 887 int default_class; 888 int error = 0; 889 890 /* check if hfsc has one default queue for this interface */ 891 default_class = 0; 892 TAILQ_FOREACH(altq, &altqs, entries) { 893 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 894 continue; 895 if (altq->qname[0] == 0) /* this is for interface */ 896 continue; 897 if (altq->parent[0] == 0) /* dummy root */ 898 continue; 899 if (altq->pq_u.hfsc_opts.flags & HFCF_DEFAULTCLASS) { 900 default_class++; 901 def = altq; 902 } 903 } 904 if (default_class != 1) { 905 warnx("should have one default queue on %s", pa->ifname); 906 return (1); 907 } 908 /* make sure the default queue is a leaf */ 909 TAILQ_FOREACH(altq, &altqs, entries) { 910 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 911 continue; 912 if (altq->qname[0] == 0) /* this is for interface */ 913 continue; 914 if (strncmp(altq->parent, def->qname, PF_QNAME_SIZE) == 0) { 915 warnx("default queue is not a leaf"); 916 error++; 917 } 918 } 919 return (error); 920 } 921 922 static int 923 check_commit_fairq(int dev __unused, int opts __unused, struct pf_altq *pa) 924 { 925 struct pf_altq *altq, *def = NULL; 926 int default_class; 927 int error = 0; 928 929 /* check if fairq has one default queue for this interface */ 930 default_class = 0; 931 TAILQ_FOREACH(altq, &altqs, entries) { 932 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 933 continue; 934 if (altq->qname[0] == 0) /* this is for interface */ 935 continue; 936 if (altq->pq_u.fairq_opts.flags & FARF_DEFAULTCLASS) { 937 default_class++; 938 def = altq; 939 } 940 } 941 if (default_class != 1) { 942 warnx("should have one default queue on %s", pa->ifname); 943 return (1); 944 } 945 /* make sure the default queue is a leaf */ 946 TAILQ_FOREACH(altq, &altqs, entries) { 947 if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) 948 continue; 949 if (altq->qname[0] == 0) /* this is for interface */ 950 continue; 951 if (strncmp(altq->parent, def->qname, PF_QNAME_SIZE) == 0) { 952 warnx("default queue is not a leaf"); 953 error++; 954 } 955 } 956 return (error); 957 } 958 959 static int 960 print_hfsc_opts(const struct pf_altq *a, const struct node_queue_opt *qopts) 961 { 962 const struct hfsc_opts *opts; 963 const struct node_hfsc_sc *loc_rtsc, *loc_lssc, *ulsc; 964 965 opts = &a->pq_u.hfsc_opts; 966 if (qopts == NULL) 967 loc_rtsc = loc_lssc = ulsc = NULL; 968 else { 969 loc_rtsc = &qopts->data.hfsc_opts.realtime; 970 loc_lssc = &qopts->data.hfsc_opts.linkshare; 971 ulsc = &qopts->data.hfsc_opts.upperlimit; 972 } 973 974 if (opts->flags || opts->rtsc_m2 != 0 || opts->ulsc_m2 != 0 || 975 (opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth || 976 opts->lssc_d != 0))) { 977 printf("hfsc("); 978 if (opts->flags & HFCF_RED) 979 printf(" red"); 980 if (opts->flags & HFCF_ECN) 981 printf(" ecn"); 982 if (opts->flags & HFCF_RIO) 983 printf(" rio"); 984 if (opts->flags & HFCF_CLEARDSCP) 985 printf(" cleardscp"); 986 if (opts->flags & HFCF_DEFAULTCLASS) 987 printf(" default"); 988 if (opts->rtsc_m2 != 0) 989 print_hfsc_sc("realtime", opts->rtsc_m1, opts->rtsc_d, 990 opts->rtsc_m2, loc_rtsc); 991 if (opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth || 992 opts->lssc_d != 0)) 993 print_hfsc_sc("linkshare", opts->lssc_m1, opts->lssc_d, 994 opts->lssc_m2, loc_lssc); 995 if (opts->ulsc_m2 != 0) 996 print_hfsc_sc("upperlimit", opts->ulsc_m1, opts->ulsc_d, 997 opts->ulsc_m2, ulsc); 998 printf(" ) "); 999 1000 return (1); 1001 } else 1002 return (0); 1003 } 1004 1005 static int 1006 print_fairq_opts(const struct pf_altq *a, const struct node_queue_opt *qopts) 1007 { 1008 const struct fairq_opts *opts; 1009 const struct node_fairq_sc *loc_lssc; 1010 1011 opts = &a->pq_u.fairq_opts; 1012 if (qopts == NULL) 1013 loc_lssc = NULL; 1014 else 1015 loc_lssc = &qopts->data.fairq_opts.linkshare; 1016 1017 if (opts->flags || 1018 (opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth || 1019 opts->lssc_d != 0))) { 1020 printf("fairq("); 1021 if (opts->flags & FARF_RED) 1022 printf(" red"); 1023 if (opts->flags & FARF_ECN) 1024 printf(" ecn"); 1025 if (opts->flags & FARF_RIO) 1026 printf(" rio"); 1027 if (opts->flags & FARF_CLEARDSCP) 1028 printf(" cleardscp"); 1029 if (opts->flags & FARF_DEFAULTCLASS) 1030 printf(" default"); 1031 if (opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth || 1032 opts->lssc_d != 0)) 1033 print_fairq_sc("linkshare", opts->lssc_m1, opts->lssc_d, 1034 opts->lssc_m2, loc_lssc); 1035 printf(" ) "); 1036 1037 return (1); 1038 } else 1039 return (0); 1040 } 1041 1042 /* 1043 * admission control using generalized service curve 1044 */ 1045 #ifndef INFINITY 1046 #define INFINITY HUGE_VAL /* positive infinity defined in <math.h> */ 1047 #endif 1048 1049 /* add a new service curve to a generalized service curve */ 1050 static void 1051 gsc_add_sc(struct gen_sc *gsc, struct service_curve *sc) 1052 { 1053 if (is_sc_null(sc)) 1054 return; 1055 if (sc->d != 0) 1056 gsc_add_seg(gsc, 0.0, 0.0, (double)sc->d, (double)sc->m1); 1057 gsc_add_seg(gsc, (double)sc->d, 0.0, INFINITY, (double)sc->m2); 1058 } 1059 1060 /* 1061 * check whether all points of a generalized service curve have 1062 * their y-coordinates no larger than a given two-piece linear 1063 * service curve. 1064 */ 1065 static int 1066 is_gsc_under_sc(struct gen_sc *gsc, struct service_curve *sc) 1067 { 1068 struct segment *s, *last, *end; 1069 double y; 1070 1071 if (is_sc_null(sc)) { 1072 if (LIST_EMPTY(gsc)) 1073 return (1); 1074 LIST_FOREACH(s, gsc, _next) { 1075 if (s->m != 0) 1076 return (0); 1077 } 1078 return (1); 1079 } 1080 /* 1081 * gsc has a dummy entry at the end with x = INFINITY. 1082 * loop through up to this dummy entry. 1083 */ 1084 end = gsc_getentry(gsc, INFINITY); 1085 if (end == NULL) 1086 return (1); 1087 last = NULL; 1088 for (s = LIST_FIRST(gsc); s != end; s = LIST_NEXT(s, _next)) { 1089 if (s->y > sc_x2y(sc, s->x)) 1090 return (0); 1091 last = s; 1092 } 1093 /* last now holds the real last segment */ 1094 if (last == NULL) 1095 return (1); 1096 if (last->m > sc->m2) 1097 return (0); 1098 if (last->x < sc->d && last->m > sc->m1) { 1099 y = last->y + (sc->d - last->x) * last->m; 1100 if (y > sc_x2y(sc, sc->d)) 1101 return (0); 1102 } 1103 return (1); 1104 } 1105 1106 static void 1107 gsc_destroy(struct gen_sc *gsc) 1108 { 1109 struct segment *s; 1110 1111 while ((s = LIST_FIRST(gsc)) != NULL) { 1112 LIST_REMOVE(s, _next); 1113 free(s); 1114 } 1115 } 1116 1117 /* 1118 * return a segment entry starting at x. 1119 * if gsc has no entry starting at x, a new entry is created at x. 1120 */ 1121 static struct segment * 1122 gsc_getentry(struct gen_sc *gsc, double x) 1123 { 1124 struct segment *new, *prev, *s; 1125 1126 prev = NULL; 1127 LIST_FOREACH(s, gsc, _next) { 1128 if (s->x == x) 1129 return (s); /* matching entry found */ 1130 else if (s->x < x) 1131 prev = s; 1132 else 1133 break; 1134 } 1135 1136 /* we have to create a new entry */ 1137 if ((new = calloc(1, sizeof(struct segment))) == NULL) 1138 return (NULL); 1139 1140 new->x = x; 1141 if (x == INFINITY || s == NULL) 1142 new->d = 0; 1143 else if (s->x == INFINITY) 1144 new->d = INFINITY; 1145 else 1146 new->d = s->x - x; 1147 if (prev == NULL) { 1148 /* insert the new entry at the head of the list */ 1149 new->y = 0; 1150 new->m = 0; 1151 LIST_INSERT_HEAD(gsc, new, _next); 1152 } else { 1153 /* 1154 * the start point intersects with the segment pointed by 1155 * prev. divide prev into 2 segments 1156 */ 1157 if (x == INFINITY) { 1158 prev->d = INFINITY; 1159 if (prev->m == 0) 1160 new->y = prev->y; 1161 else 1162 new->y = INFINITY; 1163 } else { 1164 prev->d = x - prev->x; 1165 new->y = prev->d * prev->m + prev->y; 1166 } 1167 new->m = prev->m; 1168 LIST_INSERT_AFTER(prev, new, _next); 1169 } 1170 return (new); 1171 } 1172 1173 /* add a segment to a generalized service curve */ 1174 static int 1175 gsc_add_seg(struct gen_sc *gsc, double x, double y, double d, double m) 1176 { 1177 struct segment *start, *end, *s; 1178 double x2; 1179 1180 if (d == INFINITY) 1181 x2 = INFINITY; 1182 else 1183 x2 = x + d; 1184 start = gsc_getentry(gsc, x); 1185 end = gsc_getentry(gsc, x2); 1186 if (start == NULL || end == NULL) 1187 return (-1); 1188 1189 for (s = start; s != end; s = LIST_NEXT(s, _next)) { 1190 s->m += m; 1191 s->y += y + (s->x - x) * m; 1192 } 1193 1194 end = gsc_getentry(gsc, INFINITY); 1195 for (; s != end; s = LIST_NEXT(s, _next)) { 1196 s->y += m * d; 1197 } 1198 1199 return (0); 1200 } 1201 1202 /* get y-projection of a service curve */ 1203 static double 1204 sc_x2y(struct service_curve *sc, double x) 1205 { 1206 double y; 1207 1208 if (x <= (double)sc->d) 1209 /* y belongs to the 1st segment */ 1210 y = x * (double)sc->m1; 1211 else 1212 /* y belongs to the 2nd segment */ 1213 y = (double)sc->d * (double)sc->m1 1214 + (x - (double)sc->d) * (double)sc->m2; 1215 return (y); 1216 } 1217 1218 /* 1219 * misc utilities 1220 */ 1221 #define R2S_BUFS 8 1222 #define RATESTR_MAX 16 1223 1224 char * 1225 rate2str(double rate) 1226 { 1227 char *buf; 1228 static char r2sbuf[R2S_BUFS][RATESTR_MAX]; /* ring bufer */ 1229 static int idx = 0; 1230 int i; 1231 static const char unit[] = " KMG"; 1232 1233 buf = r2sbuf[idx++]; 1234 if (idx == R2S_BUFS) 1235 idx = 0; 1236 1237 for (i = 0; rate >= 1000 && i <= 3; i++) 1238 rate /= 1000; 1239 1240 if ((int)(rate * 100) % 100) 1241 snprintf(buf, RATESTR_MAX, "%.2f%cb", rate, unit[i]); 1242 else 1243 snprintf(buf, RATESTR_MAX, "%d%cb", (int)rate, unit[i]); 1244 1245 return (buf); 1246 } 1247 1248 u_int32_t 1249 getifspeed(const char *ifname) 1250 { 1251 size_t datalen; 1252 int idx; 1253 struct ifmibdata data; 1254 int name[] = { 1255 CTL_NET, 1256 PF_LINK, 1257 NETLINK_GENERIC, 1258 IFMIB_IFDATA, 1259 0, 1260 IFDATA_GENERAL 1261 }; 1262 1263 if ((idx = (int)if_nametoindex(ifname)) == 0) 1264 err(1, "getifspeed: if_nametoindex"); 1265 name[4] = idx; 1266 1267 datalen = sizeof(data); 1268 if (sysctl(name, 6, &data, &datalen, NULL, 0)) 1269 err(1, "getifspeed: sysctl"); 1270 1271 return(data.ifmd_data.ifi_baudrate); 1272 } 1273 1274 u_long 1275 getifmtu(char *ifname) 1276 { 1277 int s; 1278 struct ifreq ifr; 1279 1280 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) 1281 err(1, "socket"); 1282 if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)) >= 1283 sizeof(ifr.ifr_name)) 1284 errx(1, "getifmtu: strlcpy"); 1285 if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) == -1) 1286 err(1, "SIOCGIFMTU"); 1287 if (shutdown(s, SHUT_RDWR) == -1) 1288 err(1, "shutdown"); 1289 if (close(s)) 1290 err(1, "close"); 1291 if (ifr.ifr_mtu > 0) 1292 return (ifr.ifr_mtu); 1293 else { 1294 warnx("could not get mtu for %s, assuming 1500", ifname); 1295 return (1500); 1296 } 1297 } 1298 1299 int 1300 eval_queue_opts(struct pf_altq *pa, struct node_queue_opt *opts, 1301 u_int32_t ref_bw) 1302 { 1303 int errors = 0; 1304 1305 switch (pa->scheduler) { 1306 case ALTQT_CBQ: 1307 pa->pq_u.cbq_opts = opts->data.cbq_opts; 1308 break; 1309 case ALTQT_PRIQ: 1310 pa->pq_u.priq_opts = opts->data.priq_opts; 1311 break; 1312 case ALTQT_HFSC: 1313 pa->pq_u.hfsc_opts.flags = opts->data.hfsc_opts.flags; 1314 if (opts->data.hfsc_opts.linkshare.used) { 1315 pa->pq_u.hfsc_opts.lssc_m1 = 1316 eval_bwspec(&opts->data.hfsc_opts.linkshare.m1, 1317 ref_bw); 1318 pa->pq_u.hfsc_opts.lssc_m2 = 1319 eval_bwspec(&opts->data.hfsc_opts.linkshare.m2, 1320 ref_bw); 1321 pa->pq_u.hfsc_opts.lssc_d = 1322 opts->data.hfsc_opts.linkshare.d; 1323 } 1324 if (opts->data.hfsc_opts.realtime.used) { 1325 pa->pq_u.hfsc_opts.rtsc_m1 = 1326 eval_bwspec(&opts->data.hfsc_opts.realtime.m1, 1327 ref_bw); 1328 pa->pq_u.hfsc_opts.rtsc_m2 = 1329 eval_bwspec(&opts->data.hfsc_opts.realtime.m2, 1330 ref_bw); 1331 pa->pq_u.hfsc_opts.rtsc_d = 1332 opts->data.hfsc_opts.realtime.d; 1333 } 1334 if (opts->data.hfsc_opts.upperlimit.used) { 1335 pa->pq_u.hfsc_opts.ulsc_m1 = 1336 eval_bwspec(&opts->data.hfsc_opts.upperlimit.m1, 1337 ref_bw); 1338 pa->pq_u.hfsc_opts.ulsc_m2 = 1339 eval_bwspec(&opts->data.hfsc_opts.upperlimit.m2, 1340 ref_bw); 1341 pa->pq_u.hfsc_opts.ulsc_d = 1342 opts->data.hfsc_opts.upperlimit.d; 1343 } 1344 break; 1345 case ALTQT_FAIRQ: 1346 pa->pq_u.fairq_opts.flags = opts->data.fairq_opts.flags; 1347 pa->pq_u.fairq_opts.nbuckets = opts->data.fairq_opts.nbuckets; 1348 pa->pq_u.fairq_opts.hogs_m1 = 1349 eval_bwspec(&opts->data.fairq_opts.hogs_bw, ref_bw); 1350 1351 if (opts->data.fairq_opts.linkshare.used) { 1352 pa->pq_u.fairq_opts.lssc_m1 = 1353 eval_bwspec(&opts->data.fairq_opts.linkshare.m1, 1354 ref_bw); 1355 pa->pq_u.fairq_opts.lssc_m2 = 1356 eval_bwspec(&opts->data.fairq_opts.linkshare.m2, 1357 ref_bw); 1358 pa->pq_u.fairq_opts.lssc_d = 1359 opts->data.fairq_opts.linkshare.d; 1360 } 1361 break; 1362 default: 1363 warnx("eval_queue_opts: unknown scheduler type %u", 1364 opts->qtype); 1365 errors++; 1366 break; 1367 } 1368 1369 return (errors); 1370 } 1371 1372 u_int32_t 1373 eval_bwspec(struct node_queue_bw *bw, u_int32_t ref_bw) 1374 { 1375 if (bw->bw_absolute > 0) 1376 return (bw->bw_absolute); 1377 1378 if (bw->bw_percent > 0) 1379 return (ref_bw / 100 * bw->bw_percent); 1380 1381 return (0); 1382 } 1383 1384 void 1385 print_hfsc_sc(const char *scname, u_int m1, u_int d, u_int m2, 1386 const struct node_hfsc_sc *sc) 1387 { 1388 printf(" %s", scname); 1389 1390 if (d != 0) { 1391 printf("("); 1392 if (sc != NULL && sc->m1.bw_percent > 0) 1393 printf("%u%%", sc->m1.bw_percent); 1394 else 1395 printf("%s", rate2str((double)m1)); 1396 printf(" %u", d); 1397 } 1398 1399 if (sc != NULL && sc->m2.bw_percent > 0) 1400 printf(" %u%%", sc->m2.bw_percent); 1401 else 1402 printf(" %s", rate2str((double)m2)); 1403 1404 if (d != 0) 1405 printf(")"); 1406 } 1407 1408 void 1409 print_fairq_sc(const char *scname, u_int m1, u_int d, u_int m2, 1410 const struct node_fairq_sc *sc) 1411 { 1412 printf(" %s", scname); 1413 1414 if (d != 0) { 1415 printf("("); 1416 if (sc != NULL && sc->m1.bw_percent > 0) 1417 printf("%u%%", sc->m1.bw_percent); 1418 else 1419 printf("%s", rate2str((double)m1)); 1420 printf(" %u", d); 1421 } 1422 1423 if (sc != NULL && sc->m2.bw_percent > 0) 1424 printf(" %u%%", sc->m2.bw_percent); 1425 else 1426 printf(" %s", rate2str((double)m2)); 1427 1428 if (d != 0) 1429 printf(")"); 1430 } 1431 1432