1
2
3
4
5
6
7
8
9
10#include <stddef.h>
11#include <stdio.h>
12#include <stdlib.h>
13#include <unistd.h>
14#include <syslog.h>
15#include <fcntl.h>
16#include <sys/socket.h>
17#include <netinet/in.h>
18#include <arpa/inet.h>
19#include <string.h>
20#include <inttypes.h>
21
22#include "utils.h"
23#include "tc_util.h"
24
25struct cake_preset {
26 char *name;
27 unsigned int target;
28 unsigned int interval;
29};
30
31static struct cake_preset presets[] = {
32 {"datacentre", 5, 100},
33 {"lan", 50, 1000},
34 {"metro", 500, 10000},
35 {"regional", 1500, 30000},
36 {"internet", 5000, 100000},
37 {"oceanic", 15000, 300000},
38 {"satellite", 50000, 1000000},
39 {"interplanetary", 50000000, 1000000000},
40};
41
42static const char * diffserv_names[CAKE_DIFFSERV_MAX] = {
43 [CAKE_DIFFSERV_DIFFSERV3] = "diffserv3",
44 [CAKE_DIFFSERV_DIFFSERV4] = "diffserv4",
45 [CAKE_DIFFSERV_DIFFSERV8] = "diffserv8",
46 [CAKE_DIFFSERV_BESTEFFORT] = "besteffort",
47 [CAKE_DIFFSERV_PRECEDENCE] = "precedence",
48};
49
50static const char * flowmode_names[CAKE_FLOW_MAX] = {
51 [CAKE_FLOW_NONE] = "flowblind",
52 [CAKE_FLOW_SRC_IP] = "srchost",
53 [CAKE_FLOW_DST_IP] = "dsthost",
54 [CAKE_FLOW_HOSTS] = "hosts",
55 [CAKE_FLOW_FLOWS] = "flows",
56 [CAKE_FLOW_DUAL_SRC] = "dual-srchost",
57 [CAKE_FLOW_DUAL_DST] = "dual-dsthost",
58 [CAKE_FLOW_TRIPLE] = "triple-isolate",
59};
60
61static struct cake_preset *find_preset(char *argv)
62{
63 int i;
64
65 for (i = 0; i < ARRAY_SIZE(presets); i++)
66 if (!strcmp(argv, presets[i].name))
67 return &presets[i];
68 return NULL;
69}
70
71static void explain(void)
72{
73 fprintf(stderr,
74 "Usage: ... cake [ bandwidth RATE | unlimited* | autorate-ingress ]\n"
75 " [ rtt TIME | datacentre | lan | metro | regional |\n"
76 " internet* | oceanic | satellite | interplanetary ]\n"
77 " [ besteffort | diffserv8 | diffserv4 | diffserv3* ]\n"
78 " [ flowblind | srchost | dsthost | hosts | flows |\n"
79 " dual-srchost | dual-dsthost | triple-isolate* ]\n"
80 " [ nat | nonat* ]\n"
81 " [ wash | nowash* ]\n"
82 " [ split-gso* | no-split-gso ]\n"
83 " [ ack-filter | ack-filter-aggressive | no-ack-filter* ]\n"
84 " [ memlimit LIMIT ]\n"
85 " [ fwmark MASK ]\n"
86 " [ ptm | atm | noatm* ] [ overhead N | conservative | raw* ]\n"
87 " [ mpu N ] [ ingress | egress* ]\n"
88 " (* marks defaults)\n");
89}
90
91static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
92 struct nlmsghdr *n, const char *dev)
93{
94 struct cake_preset *preset, *preset_set = NULL;
95 bool overhead_override = false;
96 bool overhead_set = false;
97 unsigned int interval = 0;
98 unsigned int diffserv = 0;
99 unsigned int memlimit = 0;
100 unsigned int fwmark = 0;
101 unsigned int target = 0;
102 __u64 bandwidth = 0;
103 int ack_filter = -1;
104 struct rtattr *tail;
105 int split_gso = -1;
106 int unlimited = 0;
107 int flowmode = -1;
108 int autorate = -1;
109 int ingress = -1;
110 int overhead = 0;
111 int wash = -1;
112 int nat = -1;
113 int atm = -1;
114 int mpu = 0;
115
116 while (argc > 0) {
117 if (strcmp(*argv, "bandwidth") == 0) {
118 NEXT_ARG();
119 if (get_rate64(&bandwidth, *argv)) {
120 fprintf(stderr, "Illegal \"bandwidth\"\n");
121 return -1;
122 }
123 unlimited = 0;
124 autorate = 0;
125 } else if (strcmp(*argv, "unlimited") == 0) {
126 bandwidth = 0;
127 unlimited = 1;
128 autorate = 0;
129 } else if (strcmp(*argv, "autorate-ingress") == 0) {
130 autorate = 1;
131 } else if (strcmp(*argv, "rtt") == 0) {
132 NEXT_ARG();
133 if (get_time(&interval, *argv)) {
134 fprintf(stderr, "Illegal \"rtt\"\n");
135 return -1;
136 }
137 target = interval / 20;
138 if (!target)
139 target = 1;
140 } else if ((preset = find_preset(*argv))) {
141 if (preset_set)
142 duparg(*argv, preset_set->name);
143 preset_set = preset;
144 target = preset->target;
145 interval = preset->interval;
146 } else if (strcmp(*argv, "besteffort") == 0) {
147 diffserv = CAKE_DIFFSERV_BESTEFFORT;
148 } else if (strcmp(*argv, "precedence") == 0) {
149 diffserv = CAKE_DIFFSERV_PRECEDENCE;
150 } else if (strcmp(*argv, "diffserv8") == 0) {
151 diffserv = CAKE_DIFFSERV_DIFFSERV8;
152 } else if (strcmp(*argv, "diffserv4") == 0) {
153 diffserv = CAKE_DIFFSERV_DIFFSERV4;
154 } else if (strcmp(*argv, "diffserv") == 0) {
155 diffserv = CAKE_DIFFSERV_DIFFSERV4;
156 } else if (strcmp(*argv, "diffserv3") == 0) {
157 diffserv = CAKE_DIFFSERV_DIFFSERV3;
158 } else if (strcmp(*argv, "nowash") == 0) {
159 wash = 0;
160 } else if (strcmp(*argv, "wash") == 0) {
161 wash = 1;
162 } else if (strcmp(*argv, "split-gso") == 0) {
163 split_gso = 1;
164 } else if (strcmp(*argv, "no-split-gso") == 0) {
165 split_gso = 0;
166 } else if (strcmp(*argv, "flowblind") == 0) {
167 flowmode = CAKE_FLOW_NONE;
168 } else if (strcmp(*argv, "srchost") == 0) {
169 flowmode = CAKE_FLOW_SRC_IP;
170 } else if (strcmp(*argv, "dsthost") == 0) {
171 flowmode = CAKE_FLOW_DST_IP;
172 } else if (strcmp(*argv, "hosts") == 0) {
173 flowmode = CAKE_FLOW_HOSTS;
174 } else if (strcmp(*argv, "flows") == 0) {
175 flowmode = CAKE_FLOW_FLOWS;
176 } else if (strcmp(*argv, "dual-srchost") == 0) {
177 flowmode = CAKE_FLOW_DUAL_SRC;
178 } else if (strcmp(*argv, "dual-dsthost") == 0) {
179 flowmode = CAKE_FLOW_DUAL_DST;
180 } else if (strcmp(*argv, "triple-isolate") == 0) {
181 flowmode = CAKE_FLOW_TRIPLE;
182 } else if (strcmp(*argv, "nat") == 0) {
183 nat = 1;
184 } else if (strcmp(*argv, "nonat") == 0) {
185 nat = 0;
186 } else if (strcmp(*argv, "ptm") == 0) {
187 atm = CAKE_ATM_PTM;
188 } else if (strcmp(*argv, "atm") == 0) {
189 atm = CAKE_ATM_ATM;
190 } else if (strcmp(*argv, "noatm") == 0) {
191 atm = CAKE_ATM_NONE;
192 } else if (strcmp(*argv, "raw") == 0) {
193 atm = CAKE_ATM_NONE;
194 overhead = 0;
195 overhead_set = true;
196 overhead_override = true;
197 } else if (strcmp(*argv, "conservative") == 0) {
198
199
200
201
202
203 atm = CAKE_ATM_ATM;
204 overhead = 48;
205 overhead_set = true;
206
207
208 } else if (strcmp(*argv, "ipoa-vcmux") == 0) {
209 atm = CAKE_ATM_ATM;
210 overhead += 8;
211 overhead_set = true;
212 } else if (strcmp(*argv, "ipoa-llcsnap") == 0) {
213 atm = CAKE_ATM_ATM;
214 overhead += 16;
215 overhead_set = true;
216 } else if (strcmp(*argv, "bridged-vcmux") == 0) {
217 atm = CAKE_ATM_ATM;
218 overhead += 24;
219 overhead_set = true;
220 } else if (strcmp(*argv, "bridged-llcsnap") == 0) {
221 atm = CAKE_ATM_ATM;
222 overhead += 32;
223 overhead_set = true;
224 } else if (strcmp(*argv, "pppoa-vcmux") == 0) {
225 atm = CAKE_ATM_ATM;
226 overhead += 10;
227 overhead_set = true;
228 } else if (strcmp(*argv, "pppoa-llc") == 0) {
229 atm = CAKE_ATM_ATM;
230 overhead += 14;
231 overhead_set = true;
232 } else if (strcmp(*argv, "pppoe-vcmux") == 0) {
233 atm = CAKE_ATM_ATM;
234 overhead += 32;
235 overhead_set = true;
236 } else if (strcmp(*argv, "pppoe-llcsnap") == 0) {
237 atm = CAKE_ATM_ATM;
238 overhead += 40;
239 overhead_set = true;
240
241
242
243 } else if (strcmp(*argv, "pppoe-ptm") == 0) {
244
245
246
247
248
249 atm = CAKE_ATM_PTM;
250 overhead += 30;
251 overhead_set = true;
252 } else if (strcmp(*argv, "bridged-ptm") == 0) {
253
254
255
256
257
258 atm = CAKE_ATM_PTM;
259 overhead += 22;
260 overhead_set = true;
261 } else if (strcmp(*argv, "via-ethernet") == 0) {
262
263
264
265
266
267
268
269
270
271
272
273
274 } else if (strcmp(*argv, "ethernet") == 0) {
275
276
277
278 overhead += 38;
279 overhead_set = true;
280 mpu = 84;
281
282
283 } else if (strcmp(*argv, "ether-vlan") == 0) {
284
285 overhead += 4;
286 overhead_set = true;
287
288
289
290
291
292 } else if (strcmp(*argv, "docsis") == 0) {
293 atm = CAKE_ATM_NONE;
294 overhead += 18;
295 overhead_set = true;
296 mpu = 64;
297 } else if (strcmp(*argv, "overhead") == 0) {
298 char *p = NULL;
299
300 NEXT_ARG();
301 overhead = strtol(*argv, &p, 10);
302 if (!p || *p || overhead < -64 || overhead > 256) {
303 fprintf(stderr,
304 "Illegal \"overhead\", valid range is -64 to 256\\n");
305 return -1;
306 }
307 overhead_set = true;
308
309 } else if (strcmp(*argv, "mpu") == 0) {
310 char *p = NULL;
311
312 NEXT_ARG();
313 mpu = strtol(*argv, &p, 10);
314 if (!p || *p || mpu < 0 || mpu > 256) {
315 fprintf(stderr,
316 "Illegal \"mpu\", valid range is 0 to 256\\n");
317 return -1;
318 }
319 } else if (strcmp(*argv, "ingress") == 0) {
320 ingress = 1;
321 } else if (strcmp(*argv, "egress") == 0) {
322 ingress = 0;
323 } else if (strcmp(*argv, "no-ack-filter") == 0) {
324 ack_filter = CAKE_ACK_NONE;
325 } else if (strcmp(*argv, "ack-filter") == 0) {
326 ack_filter = CAKE_ACK_FILTER;
327 } else if (strcmp(*argv, "ack-filter-aggressive") == 0) {
328 ack_filter = CAKE_ACK_AGGRESSIVE;
329 } else if (strcmp(*argv, "memlimit") == 0) {
330 NEXT_ARG();
331 if (get_size(&memlimit, *argv)) {
332 fprintf(stderr,
333 "Illegal value for \"memlimit\": \"%s\"\n", *argv);
334 return -1;
335 }
336 } else if (strcmp(*argv, "fwmark") == 0) {
337 NEXT_ARG();
338 if (get_u32(&fwmark, *argv, 0)) {
339 fprintf(stderr,
340 "Illegal value for \"fwmark\": \"%s\"\n", *argv);
341 return -1;
342 }
343 } else if (strcmp(*argv, "help") == 0) {
344 explain();
345 return -1;
346 } else {
347 fprintf(stderr, "What is \"%s\"?\n", *argv);
348 explain();
349 return -1;
350 }
351 argc--; argv++;
352 }
353
354 tail = NLMSG_TAIL(n);
355 addattr_l(n, 1024, TCA_OPTIONS, NULL, 0);
356 if (bandwidth || unlimited)
357 addattr_l(n, 1024, TCA_CAKE_BASE_RATE64, &bandwidth,
358 sizeof(bandwidth));
359 if (diffserv)
360 addattr_l(n, 1024, TCA_CAKE_DIFFSERV_MODE, &diffserv,
361 sizeof(diffserv));
362 if (atm != -1)
363 addattr_l(n, 1024, TCA_CAKE_ATM, &atm, sizeof(atm));
364 if (flowmode != -1)
365 addattr_l(n, 1024, TCA_CAKE_FLOW_MODE, &flowmode,
366 sizeof(flowmode));
367 if (overhead_set)
368 addattr_l(n, 1024, TCA_CAKE_OVERHEAD, &overhead,
369 sizeof(overhead));
370 if (overhead_override) {
371 unsigned int zero = 0;
372
373 addattr_l(n, 1024, TCA_CAKE_RAW, &zero, sizeof(zero));
374 }
375 if (mpu > 0)
376 addattr_l(n, 1024, TCA_CAKE_MPU, &mpu, sizeof(mpu));
377 if (interval)
378 addattr_l(n, 1024, TCA_CAKE_RTT, &interval, sizeof(interval));
379 if (target)
380 addattr_l(n, 1024, TCA_CAKE_TARGET, &target, sizeof(target));
381 if (autorate != -1)
382 addattr_l(n, 1024, TCA_CAKE_AUTORATE, &autorate,
383 sizeof(autorate));
384 if (memlimit)
385 addattr_l(n, 1024, TCA_CAKE_MEMORY, &memlimit,
386 sizeof(memlimit));
387 if (fwmark)
388 addattr_l(n, 1024, TCA_CAKE_FWMARK, &fwmark,
389 sizeof(fwmark));
390 if (nat != -1)
391 addattr_l(n, 1024, TCA_CAKE_NAT, &nat, sizeof(nat));
392 if (wash != -1)
393 addattr_l(n, 1024, TCA_CAKE_WASH, &wash, sizeof(wash));
394 if (split_gso != -1)
395 addattr_l(n, 1024, TCA_CAKE_SPLIT_GSO, &split_gso,
396 sizeof(split_gso));
397 if (ingress != -1)
398 addattr_l(n, 1024, TCA_CAKE_INGRESS, &ingress, sizeof(ingress));
399 if (ack_filter != -1)
400 addattr_l(n, 1024, TCA_CAKE_ACK_FILTER, &ack_filter,
401 sizeof(ack_filter));
402
403 tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
404 return 0;
405}
406
407static void cake_print_mode(unsigned int value, unsigned int max,
408 const char *key, const char **table)
409{
410 if (value < max && table[value]) {
411 print_string(PRINT_ANY, key, "%s ", table[value]);
412 } else {
413 print_string(PRINT_JSON, key, NULL, "unknown");
414 print_string(PRINT_FP, NULL, "(?%s?)", key);
415 }
416}
417
418static int cake_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
419{
420 struct rtattr *tb[TCA_CAKE_MAX + 1];
421 unsigned int interval = 0;
422 unsigned int memlimit = 0;
423 unsigned int fwmark = 0;
424 __u64 bandwidth = 0;
425 int ack_filter = 0;
426 int split_gso = 0;
427 int overhead = 0;
428 int autorate = 0;
429 int ingress = 0;
430 int wash = 0;
431 int raw = 0;
432 int mpu = 0;
433 int atm = 0;
434 int nat = 0;
435
436 SPRINT_BUF(b2);
437
438 if (opt == NULL)
439 return 0;
440
441 parse_rtattr_nested(tb, TCA_CAKE_MAX, opt);
442
443 if (tb[TCA_CAKE_BASE_RATE64] &&
444 RTA_PAYLOAD(tb[TCA_CAKE_BASE_RATE64]) >= sizeof(bandwidth)) {
445 bandwidth = rta_getattr_u64(tb[TCA_CAKE_BASE_RATE64]);
446 if (bandwidth)
447 tc_print_rate(PRINT_ANY, "bandwidth", "bandwidth %s ",
448 bandwidth);
449 else
450 print_string(PRINT_ANY, "bandwidth", "bandwidth %s ",
451 "unlimited");
452 }
453 if (tb[TCA_CAKE_AUTORATE] &&
454 RTA_PAYLOAD(tb[TCA_CAKE_AUTORATE]) >= sizeof(__u32)) {
455 autorate = rta_getattr_u32(tb[TCA_CAKE_AUTORATE]);
456 if (autorate == 1)
457 print_string(PRINT_ANY, "autorate", "%s ",
458 "autorate-ingress");
459 else if (autorate)
460 print_string(PRINT_ANY, "autorate", "(?autorate?) ",
461 "unknown");
462 }
463 if (tb[TCA_CAKE_DIFFSERV_MODE] &&
464 RTA_PAYLOAD(tb[TCA_CAKE_DIFFSERV_MODE]) >= sizeof(__u32)) {
465 cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_DIFFSERV_MODE]),
466 CAKE_DIFFSERV_MAX, "diffserv", diffserv_names);
467 }
468 if (tb[TCA_CAKE_FLOW_MODE] &&
469 RTA_PAYLOAD(tb[TCA_CAKE_FLOW_MODE]) >= sizeof(__u32)) {
470 cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_FLOW_MODE]),
471 CAKE_FLOW_MAX, "flowmode", flowmode_names);
472 }
473
474 if (tb[TCA_CAKE_NAT] &&
475 RTA_PAYLOAD(tb[TCA_CAKE_NAT]) >= sizeof(__u32)) {
476 nat = rta_getattr_u32(tb[TCA_CAKE_NAT]);
477 }
478
479 if (nat)
480 print_string(PRINT_FP, NULL, "nat ", NULL);
481 else
482 print_string(PRINT_FP, NULL, "nonat ", NULL);
483 print_bool(PRINT_JSON, "nat", NULL, nat);
484
485 if (tb[TCA_CAKE_WASH] &&
486 RTA_PAYLOAD(tb[TCA_CAKE_WASH]) >= sizeof(__u32)) {
487 wash = rta_getattr_u32(tb[TCA_CAKE_WASH]);
488 }
489 if (tb[TCA_CAKE_ATM] &&
490 RTA_PAYLOAD(tb[TCA_CAKE_ATM]) >= sizeof(__u32)) {
491 atm = rta_getattr_u32(tb[TCA_CAKE_ATM]);
492 }
493 if (tb[TCA_CAKE_OVERHEAD] &&
494 RTA_PAYLOAD(tb[TCA_CAKE_OVERHEAD]) >= sizeof(__s32)) {
495 overhead = *(__s32 *) RTA_DATA(tb[TCA_CAKE_OVERHEAD]);
496 }
497 if (tb[TCA_CAKE_MPU] &&
498 RTA_PAYLOAD(tb[TCA_CAKE_MPU]) >= sizeof(__u32)) {
499 mpu = rta_getattr_u32(tb[TCA_CAKE_MPU]);
500 }
501 if (tb[TCA_CAKE_INGRESS] &&
502 RTA_PAYLOAD(tb[TCA_CAKE_INGRESS]) >= sizeof(__u32)) {
503 ingress = rta_getattr_u32(tb[TCA_CAKE_INGRESS]);
504 }
505 if (tb[TCA_CAKE_ACK_FILTER] &&
506 RTA_PAYLOAD(tb[TCA_CAKE_ACK_FILTER]) >= sizeof(__u32)) {
507 ack_filter = rta_getattr_u32(tb[TCA_CAKE_ACK_FILTER]);
508 }
509 if (tb[TCA_CAKE_SPLIT_GSO] &&
510 RTA_PAYLOAD(tb[TCA_CAKE_SPLIT_GSO]) >= sizeof(__u32)) {
511 split_gso = rta_getattr_u32(tb[TCA_CAKE_SPLIT_GSO]);
512 }
513 if (tb[TCA_CAKE_RAW]) {
514 raw = 1;
515 }
516 if (tb[TCA_CAKE_RTT] &&
517 RTA_PAYLOAD(tb[TCA_CAKE_RTT]) >= sizeof(__u32)) {
518 interval = rta_getattr_u32(tb[TCA_CAKE_RTT]);
519 }
520 if (tb[TCA_CAKE_MEMORY] &&
521 RTA_PAYLOAD(tb[TCA_CAKE_MEMORY]) >= sizeof(__u32)) {
522 memlimit = rta_getattr_u32(tb[TCA_CAKE_MEMORY]);
523 }
524 if (tb[TCA_CAKE_FWMARK] &&
525 RTA_PAYLOAD(tb[TCA_CAKE_FWMARK]) >= sizeof(__u32)) {
526 fwmark = rta_getattr_u32(tb[TCA_CAKE_FWMARK]);
527 }
528
529 if (wash)
530 print_string(PRINT_FP, NULL, "wash ", NULL);
531 else
532 print_string(PRINT_FP, NULL, "nowash ", NULL);
533 print_bool(PRINT_JSON, "wash", NULL, wash);
534
535 if (ingress)
536 print_string(PRINT_FP, NULL, "ingress ", NULL);
537 print_bool(PRINT_JSON, "ingress", NULL, ingress);
538
539 if (ack_filter == CAKE_ACK_AGGRESSIVE)
540 print_string(PRINT_ANY, "ack-filter", "ack-filter-%s ",
541 "aggressive");
542 else if (ack_filter == CAKE_ACK_FILTER)
543 print_string(PRINT_ANY, "ack-filter", "ack-filter ", "enabled");
544 else
545 print_string(PRINT_ANY, "ack-filter", "no-ack-filter ", "disabled");
546
547 if (split_gso)
548 print_string(PRINT_FP, NULL, "split-gso ", NULL);
549 else
550 print_string(PRINT_FP, NULL, "no-split-gso ", NULL);
551 print_bool(PRINT_JSON, "split_gso", NULL, split_gso);
552
553 if (interval)
554 print_string(PRINT_FP, NULL, "rtt %s ",
555 sprint_time(interval, b2));
556 print_uint(PRINT_JSON, "rtt", NULL, interval);
557
558 if (raw)
559 print_string(PRINT_FP, NULL, "raw ", NULL);
560 print_bool(PRINT_JSON, "raw", NULL, raw);
561
562 if (atm == CAKE_ATM_ATM)
563 print_string(PRINT_ANY, "atm", "%s ", "atm");
564 else if (atm == CAKE_ATM_PTM)
565 print_string(PRINT_ANY, "atm", "%s ", "ptm");
566 else if (!raw)
567 print_string(PRINT_ANY, "atm", "%s ", "noatm");
568
569 print_int(PRINT_ANY, "overhead", "overhead %d ", overhead);
570
571 if (mpu)
572 print_uint(PRINT_ANY, "mpu", "mpu %u ", mpu);
573
574 if (memlimit)
575 print_size(PRINT_ANY, "memlimit", "memlimit %s ", memlimit);
576
577 if (fwmark)
578 print_uint(PRINT_FP, NULL, "fwmark 0x%x ", fwmark);
579 print_0xhex(PRINT_JSON, "fwmark", NULL, fwmark);
580
581 return 0;
582}
583
584static void cake_print_json_tin(struct rtattr **tstat)
585{
586#define PRINT_TSTAT_JSON(type, name, attr) if (tstat[TCA_CAKE_TIN_STATS_ ## attr]) \
587 print_u64(PRINT_JSON, name, NULL, \
588 rta_getattr_ ## type((struct rtattr *) \
589 tstat[TCA_CAKE_TIN_STATS_ ## attr]))
590
591 open_json_object(NULL);
592 PRINT_TSTAT_JSON(u64, "threshold_rate", THRESHOLD_RATE64);
593 PRINT_TSTAT_JSON(u64, "sent_bytes", SENT_BYTES64);
594 PRINT_TSTAT_JSON(u32, "backlog_bytes", BACKLOG_BYTES);
595 PRINT_TSTAT_JSON(u32, "target_us", TARGET_US);
596 PRINT_TSTAT_JSON(u32, "interval_us", INTERVAL_US);
597 PRINT_TSTAT_JSON(u32, "peak_delay_us", PEAK_DELAY_US);
598 PRINT_TSTAT_JSON(u32, "avg_delay_us", AVG_DELAY_US);
599 PRINT_TSTAT_JSON(u32, "base_delay_us", BASE_DELAY_US);
600 PRINT_TSTAT_JSON(u32, "sent_packets", SENT_PACKETS);
601 PRINT_TSTAT_JSON(u32, "way_indirect_hits", WAY_INDIRECT_HITS);
602 PRINT_TSTAT_JSON(u32, "way_misses", WAY_MISSES);
603 PRINT_TSTAT_JSON(u32, "way_collisions", WAY_COLLISIONS);
604 PRINT_TSTAT_JSON(u32, "drops", DROPPED_PACKETS);
605 PRINT_TSTAT_JSON(u32, "ecn_mark", ECN_MARKED_PACKETS);
606 PRINT_TSTAT_JSON(u32, "ack_drops", ACKS_DROPPED_PACKETS);
607 PRINT_TSTAT_JSON(u32, "sparse_flows", SPARSE_FLOWS);
608 PRINT_TSTAT_JSON(u32, "bulk_flows", BULK_FLOWS);
609 PRINT_TSTAT_JSON(u32, "unresponsive_flows", UNRESPONSIVE_FLOWS);
610 PRINT_TSTAT_JSON(u32, "max_pkt_len", MAX_SKBLEN);
611 PRINT_TSTAT_JSON(u32, "flow_quantum", FLOW_QUANTUM);
612 close_json_object();
613
614#undef PRINT_TSTAT_JSON
615}
616
617static int cake_print_xstats(struct qdisc_util *qu, FILE *f,
618 struct rtattr *xstats)
619{
620 struct rtattr *st[TCA_CAKE_STATS_MAX + 1];
621 SPRINT_BUF(b1);
622 int i;
623
624 if (xstats == NULL)
625 return 0;
626
627#define GET_STAT_U32(attr) rta_getattr_u32(st[TCA_CAKE_STATS_ ## attr])
628#define GET_STAT_S32(attr) (*(__s32 *)RTA_DATA(st[TCA_CAKE_STATS_ ## attr]))
629#define GET_STAT_U64(attr) rta_getattr_u64(st[TCA_CAKE_STATS_ ## attr])
630
631 parse_rtattr_nested(st, TCA_CAKE_STATS_MAX, xstats);
632
633 if (st[TCA_CAKE_STATS_MEMORY_USED] &&
634 st[TCA_CAKE_STATS_MEMORY_LIMIT]) {
635 print_size(PRINT_FP, NULL, " memory used: %s",
636 GET_STAT_U32(MEMORY_USED));
637
638 print_size(PRINT_FP, NULL, " of %s\n",
639 GET_STAT_U32(MEMORY_LIMIT));
640
641 print_uint(PRINT_JSON, "memory_used", NULL,
642 GET_STAT_U32(MEMORY_USED));
643 print_uint(PRINT_JSON, "memory_limit", NULL,
644 GET_STAT_U32(MEMORY_LIMIT));
645 }
646
647 if (st[TCA_CAKE_STATS_CAPACITY_ESTIMATE64])
648 tc_print_rate(PRINT_ANY, "capacity_estimate",
649 " capacity estimate: %s\n",
650 GET_STAT_U64(CAPACITY_ESTIMATE64));
651
652 if (st[TCA_CAKE_STATS_MIN_NETLEN] &&
653 st[TCA_CAKE_STATS_MAX_NETLEN]) {
654 print_uint(PRINT_ANY, "min_network_size",
655 " min/max network layer size: %12u",
656 GET_STAT_U32(MIN_NETLEN));
657 print_uint(PRINT_ANY, "max_network_size",
658 " /%8u\n", GET_STAT_U32(MAX_NETLEN));
659 }
660
661 if (st[TCA_CAKE_STATS_MIN_ADJLEN] &&
662 st[TCA_CAKE_STATS_MAX_ADJLEN]) {
663 print_uint(PRINT_ANY, "min_adj_size",
664 " min/max overhead-adjusted size: %8u",
665 GET_STAT_U32(MIN_ADJLEN));
666 print_uint(PRINT_ANY, "max_adj_size",
667 " /%8u\n", GET_STAT_U32(MAX_ADJLEN));
668 }
669
670 if (st[TCA_CAKE_STATS_AVG_NETOFF])
671 print_uint(PRINT_ANY, "avg_hdr_offset",
672 " average network hdr offset: %12u\n\n",
673 GET_STAT_U32(AVG_NETOFF));
674
675
676 if (st[TCA_CAKE_STATS_DEFICIT])
677 print_int(PRINT_ANY, "deficit", " deficit %d",
678 GET_STAT_S32(DEFICIT));
679 if (st[TCA_CAKE_STATS_COBALT_COUNT])
680 print_uint(PRINT_ANY, "count", " count %u",
681 GET_STAT_U32(COBALT_COUNT));
682
683 if (st[TCA_CAKE_STATS_DROPPING] && GET_STAT_U32(DROPPING)) {
684 print_bool(PRINT_ANY, "dropping", " dropping", true);
685 if (st[TCA_CAKE_STATS_DROP_NEXT_US]) {
686 int drop_next = GET_STAT_S32(DROP_NEXT_US);
687
688 if (drop_next < 0) {
689 print_string(PRINT_FP, NULL, " drop_next -%s",
690 sprint_time(-drop_next, b1));
691 } else {
692 print_uint(PRINT_JSON, "drop_next", NULL,
693 drop_next);
694 print_string(PRINT_FP, NULL, " drop_next %s",
695 sprint_time(drop_next, b1));
696 }
697 }
698 }
699
700 if (st[TCA_CAKE_STATS_P_DROP]) {
701 print_uint(PRINT_ANY, "blue_prob", " blue_prob %u",
702 GET_STAT_U32(P_DROP));
703 if (st[TCA_CAKE_STATS_BLUE_TIMER_US]) {
704 int blue_timer = GET_STAT_S32(BLUE_TIMER_US);
705
706 if (blue_timer < 0) {
707 print_string(PRINT_FP, NULL, " blue_timer -%s",
708 sprint_time(blue_timer, b1));
709 } else {
710 print_uint(PRINT_JSON, "blue_timer", NULL,
711 blue_timer);
712 print_string(PRINT_FP, NULL, " blue_timer %s",
713 sprint_time(blue_timer, b1));
714 }
715 }
716 }
717
718#undef GET_STAT_U32
719#undef GET_STAT_S32
720#undef GET_STAT_U64
721
722 if (st[TCA_CAKE_STATS_TIN_STATS]) {
723 struct rtattr *tstat[TC_CAKE_MAX_TINS][TCA_CAKE_TIN_STATS_MAX + 1];
724 struct rtattr *tins[TC_CAKE_MAX_TINS + 1];
725 int num_tins = 0;
726
727 parse_rtattr_nested(tins, TC_CAKE_MAX_TINS,
728 st[TCA_CAKE_STATS_TIN_STATS]);
729
730 for (i = 1; i <= TC_CAKE_MAX_TINS && tins[i]; i++) {
731 parse_rtattr_nested(tstat[i-1], TCA_CAKE_TIN_STATS_MAX,
732 tins[i]);
733 num_tins++;
734 }
735
736 if (!num_tins)
737 return 0;
738
739 if (is_json_context()) {
740 open_json_array(PRINT_JSON, "tins");
741 for (i = 0; i < num_tins; i++)
742 cake_print_json_tin(tstat[i]);
743 close_json_array(PRINT_JSON, NULL);
744
745 return 0;
746 }
747
748
749 switch (num_tins) {
750 case 3:
751 fprintf(f, " Bulk Best Effort Voice\n");
752 break;
753
754 case 4:
755 fprintf(f, " Bulk Best Effort Video Voice\n");
756 break;
757
758 default:
759 fprintf(f, " ");
760 for (i = 0; i < num_tins; i++)
761 fprintf(f, " Tin %u", i);
762 fprintf(f, "%s", _SL_);
763 };
764
765#define GET_TSTAT(i, attr) (tstat[i][TCA_CAKE_TIN_STATS_ ## attr])
766#define PRINT_TSTAT(name, attr, fmts, val) do { \
767 if (GET_TSTAT(0, attr)) { \
768 fprintf(f, name); \
769 for (i = 0; i < num_tins; i++) \
770 fprintf(f, " %12" fmts, val); \
771 fprintf(f, "%s", _SL_); \
772 } \
773 } while (0)
774
775#define SPRINT_TSTAT(pfunc, type, name, attr) PRINT_TSTAT( \
776 name, attr, "s", sprint_ ## pfunc( \
777 rta_getattr_ ## type(GET_TSTAT(i, attr)), b1))
778
779#define PRINT_TSTAT_U32(name, attr) PRINT_TSTAT( \
780 name, attr, "u", rta_getattr_u32(GET_TSTAT(i, attr)))
781
782#define PRINT_TSTAT_U64(name, attr) PRINT_TSTAT( \
783 name, attr, "llu", rta_getattr_u64(GET_TSTAT(i, attr)))
784
785 if (GET_TSTAT(0, THRESHOLD_RATE64)) {
786 fprintf(f, " thresh ");
787 for (i = 0; i < num_tins; i++)
788 tc_print_rate(PRINT_FP, NULL, " %12s",
789 rta_getattr_u64(GET_TSTAT(i, THRESHOLD_RATE64)));
790 fprintf(f, "%s", _SL_);
791 }
792
793 SPRINT_TSTAT(time, u32, " target ", TARGET_US);
794 SPRINT_TSTAT(time, u32, " interval", INTERVAL_US);
795 SPRINT_TSTAT(time, u32, " pk_delay", PEAK_DELAY_US);
796 SPRINT_TSTAT(time, u32, " av_delay", AVG_DELAY_US);
797 SPRINT_TSTAT(time, u32, " sp_delay", BASE_DELAY_US);
798 SPRINT_TSTAT(size, u32, " backlog ", BACKLOG_BYTES);
799
800 PRINT_TSTAT_U32(" pkts ", SENT_PACKETS);
801 PRINT_TSTAT_U64(" bytes ", SENT_BYTES64);
802
803 PRINT_TSTAT_U32(" way_inds", WAY_INDIRECT_HITS);
804 PRINT_TSTAT_U32(" way_miss", WAY_MISSES);
805 PRINT_TSTAT_U32(" way_cols", WAY_COLLISIONS);
806 PRINT_TSTAT_U32(" drops ", DROPPED_PACKETS);
807 PRINT_TSTAT_U32(" marks ", ECN_MARKED_PACKETS);
808 PRINT_TSTAT_U32(" ack_drop", ACKS_DROPPED_PACKETS);
809 PRINT_TSTAT_U32(" sp_flows", SPARSE_FLOWS);
810 PRINT_TSTAT_U32(" bk_flows", BULK_FLOWS);
811 PRINT_TSTAT_U32(" un_flows", UNRESPONSIVE_FLOWS);
812 PRINT_TSTAT_U32(" max_len ", MAX_SKBLEN);
813 PRINT_TSTAT_U32(" quantum ", FLOW_QUANTUM);
814
815#undef GET_STAT
816#undef PRINT_TSTAT
817#undef SPRINT_TSTAT
818#undef PRINT_TSTAT_U32
819#undef PRINT_TSTAT_U64
820 }
821 return 0;
822}
823
824struct qdisc_util cake_qdisc_util = {
825 .id = "cake",
826 .parse_qopt = cake_parse_opt,
827 .print_qopt = cake_print_opt,
828 .print_xstats = cake_print_xstats,
829};
830
