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Commit | Line | Data |
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aba5acdf SH |
1 | /* |
2 | * tc_util.c Misc TC utility functions. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <unistd.h> | |
aba5acdf SH |
16 | #include <fcntl.h> |
17 | #include <sys/socket.h> | |
dd9cc0ee | 18 | #include <sys/param.h> |
aba5acdf SH |
19 | #include <netinet/in.h> |
20 | #include <arpa/inet.h> | |
21 | #include <string.h> | |
22 | #include <math.h> | |
8b90a990 | 23 | #include <errno.h> |
aba5acdf SH |
24 | |
25 | #include "utils.h" | |
4612d04d | 26 | #include "names.h" |
aba5acdf | 27 | #include "tc_util.h" |
4612d04d | 28 | #include "tc_common.h" |
aba5acdf | 29 | |
5e3bb534 | 30 | #ifndef LIBDIR |
5c434a9e | 31 | #define LIBDIR "/usr/lib" |
b514b358 RA |
32 | #endif |
33 | ||
32a121cb | 34 | static struct db_names *cls_names; |
4612d04d | 35 | |
8b90a990 | 36 | #define NAMES_DB "/etc/iproute2/tc_cls" |
4612d04d VK |
37 | |
38 | int cls_names_init(char *path) | |
39 | { | |
8b90a990 VK |
40 | int ret; |
41 | ||
42 | cls_names = db_names_alloc(); | |
43 | if (!cls_names) | |
44 | return -1; | |
45 | ||
46 | ret = db_names_load(cls_names, path ?: NAMES_DB); | |
47 | if (ret == -ENOENT && path) { | |
48 | fprintf(stderr, "Can't open class names file: %s\n", path); | |
4612d04d VK |
49 | return -1; |
50 | } | |
8b90a990 VK |
51 | if (ret) { |
52 | db_names_free(cls_names); | |
53 | cls_names = NULL; | |
54 | } | |
4612d04d VK |
55 | |
56 | return 0; | |
57 | } | |
58 | ||
59 | void cls_names_uninit(void) | |
60 | { | |
61 | db_names_free(cls_names); | |
62 | } | |
63 | ||
aa27f88c SH |
64 | const char *get_tc_lib(void) |
65 | { | |
66 | const char *lib_dir; | |
67 | ||
68 | lib_dir = getenv("TC_LIB_DIR"); | |
69 | if (!lib_dir) | |
5e3bb534 | 70 | lib_dir = LIBDIR "/tc/"; |
aa27f88c SH |
71 | |
72 | return lib_dir; | |
73 | } | |
74 | ||
dbd90dc2 | 75 | int get_qdisc_handle(__u32 *h, const char *str) |
aba5acdf SH |
76 | { |
77 | __u32 maj; | |
78 | char *p; | |
79 | ||
80 | maj = TC_H_UNSPEC; | |
81 | if (strcmp(str, "none") == 0) | |
82 | goto ok; | |
83 | maj = strtoul(str, &p, 16); | |
087dec7f | 84 | if (p == str || maj >= (1 << 16)) |
aba5acdf SH |
85 | return -1; |
86 | maj <<= 16; | |
32a121cb | 87 | if (*p != ':' && *p != 0) |
aba5acdf SH |
88 | return -1; |
89 | ok: | |
90 | *h = maj; | |
91 | return 0; | |
92 | } | |
93 | ||
dbd90dc2 | 94 | int get_tc_classid(__u32 *h, const char *str) |
aba5acdf SH |
95 | { |
96 | __u32 maj, min; | |
97 | char *p; | |
98 | ||
99 | maj = TC_H_ROOT; | |
100 | if (strcmp(str, "root") == 0) | |
101 | goto ok; | |
102 | maj = TC_H_UNSPEC; | |
103 | if (strcmp(str, "none") == 0) | |
104 | goto ok; | |
105 | maj = strtoul(str, &p, 16); | |
106 | if (p == str) { | |
107 | maj = 0; | |
108 | if (*p != ':') | |
109 | return -1; | |
110 | } | |
111 | if (*p == ':') { | |
a8b303cc SH |
112 | if (maj >= (1<<16)) |
113 | return -1; | |
aba5acdf SH |
114 | maj <<= 16; |
115 | str = p+1; | |
116 | min = strtoul(str, &p, 16); | |
117 | if (*p != 0) | |
118 | return -1; | |
a8b303cc SH |
119 | if (min >= (1<<16)) |
120 | return -1; | |
aba5acdf SH |
121 | maj |= min; |
122 | } else if (*p != 0) | |
123 | return -1; | |
124 | ||
125 | ok: | |
126 | *h = maj; | |
127 | return 0; | |
128 | } | |
129 | ||
46679bbb | 130 | int print_tc_classid(char *buf, int blen, __u32 h) |
aba5acdf | 131 | { |
46679bbb VK |
132 | SPRINT_BUF(handle) = {}; |
133 | int hlen = SPRINT_BSIZE - 1; | |
4612d04d | 134 | |
aba5acdf | 135 | if (h == TC_H_ROOT) |
4612d04d | 136 | sprintf(handle, "root"); |
aba5acdf | 137 | else if (h == TC_H_UNSPEC) |
46679bbb | 138 | snprintf(handle, hlen, "none"); |
aba5acdf | 139 | else if (TC_H_MAJ(h) == 0) |
46679bbb | 140 | snprintf(handle, hlen, ":%x", TC_H_MIN(h)); |
aba5acdf | 141 | else if (TC_H_MIN(h) == 0) |
46679bbb | 142 | snprintf(handle, hlen, "%x:", TC_H_MAJ(h) >> 16); |
aba5acdf | 143 | else |
46679bbb | 144 | snprintf(handle, hlen, "%x:%x", TC_H_MAJ(h) >> 16, TC_H_MIN(h)); |
4612d04d VK |
145 | |
146 | if (use_names) { | |
147 | char clname[IDNAME_MAX] = {}; | |
148 | ||
149 | if (id_to_name(cls_names, h, clname)) | |
46679bbb | 150 | snprintf(buf, blen, "%s#%s", clname, handle); |
4612d04d | 151 | else |
46679bbb | 152 | snprintf(buf, blen, "%s", handle); |
4612d04d | 153 | } else { |
46679bbb | 154 | snprintf(buf, blen, "%s", handle); |
4612d04d VK |
155 | } |
156 | ||
aba5acdf SH |
157 | return 0; |
158 | } | |
159 | ||
4612d04d | 160 | char *sprint_tc_classid(__u32 h, char *buf) |
aba5acdf SH |
161 | { |
162 | if (print_tc_classid(buf, SPRINT_BSIZE-1, h)) | |
163 | strcpy(buf, "???"); | |
164 | return buf; | |
165 | } | |
166 | ||
26ab0b10 SH |
167 | /* See http://physics.nist.gov/cuu/Units/binary.html */ |
168 | static const struct rate_suffix { | |
169 | const char *name; | |
170 | double scale; | |
171 | } suffixes[] = { | |
172 | { "bit", 1. }, | |
173 | { "Kibit", 1024. }, | |
174 | { "kbit", 1000. }, | |
175 | { "mibit", 1024.*1024. }, | |
176 | { "mbit", 1000000. }, | |
177 | { "gibit", 1024.*1024.*1024. }, | |
178 | { "gbit", 1000000000. }, | |
179 | { "tibit", 1024.*1024.*1024.*1024. }, | |
180 | { "tbit", 1000000000000. }, | |
181 | { "Bps", 8. }, | |
182 | { "KiBps", 8.*1024. }, | |
183 | { "KBps", 8000. }, | |
184 | { "MiBps", 8.*1024*1024. }, | |
185 | { "MBps", 8000000. }, | |
186 | { "GiBps", 8.*1024.*1024.*1024. }, | |
187 | { "GBps", 8000000000. }, | |
188 | { "TiBps", 8.*1024.*1024.*1024.*1024. }, | |
189 | { "TBps", 8000000000000. }, | |
190 | { NULL } | |
191 | }; | |
192 | ||
927e3cfb ND |
193 | int parse_percent_rate(char *rate, const char *str, const char *dev) |
194 | { | |
195 | long dev_mbit; | |
196 | int ret; | |
197 | double perc, rate_mbit; | |
198 | char *str_perc; | |
199 | ||
200 | if (!dev[0]) { | |
201 | fprintf(stderr, "No device specified; specify device to rate limit by percentage\n"); | |
202 | return -1; | |
203 | } | |
204 | ||
205 | if (read_prop(dev, "speed", &dev_mbit)) | |
206 | return -1; | |
207 | ||
208 | ret = sscanf(str, "%m[0-9.%]", &str_perc); | |
209 | if (ret != 1) | |
210 | goto malf; | |
211 | ||
212 | if (parse_percent(&perc, str_perc)) | |
213 | goto malf; | |
214 | ||
215 | free(str_perc); | |
216 | ||
217 | if (perc > 1.0 || perc < 0.0) { | |
218 | fprintf(stderr, "Invalid rate specified; should be between [0,100]%% but is %s\n", str); | |
219 | return -1; | |
220 | } | |
221 | ||
222 | rate_mbit = perc * dev_mbit; | |
223 | ||
224 | ret = snprintf(rate, 20, "%lf", rate_mbit); | |
225 | if (ret <= 0 || ret >= 20) { | |
226 | fprintf(stderr, "Unable to parse calculated rate\n"); | |
227 | return -1; | |
228 | } | |
229 | ||
230 | return 0; | |
231 | ||
232 | malf: | |
233 | fprintf(stderr, "Specified rate value could not be read or is malformed\n"); | |
234 | return -1; | |
235 | } | |
236 | ||
237 | int get_percent_rate(unsigned int *rate, const char *str, const char *dev) | |
238 | { | |
239 | char r_str[20]; | |
240 | ||
241 | if (parse_percent_rate(r_str, str, dev)) | |
242 | return -1; | |
243 | ||
244 | return get_rate(rate, r_str); | |
245 | } | |
246 | ||
247 | int get_percent_rate64(__u64 *rate, const char *str, const char *dev) | |
248 | { | |
249 | char r_str[20]; | |
250 | ||
251 | if (parse_percent_rate(r_str, str, dev)) | |
252 | return -1; | |
253 | ||
254 | return get_rate64(rate, r_str); | |
255 | } | |
26ab0b10 | 256 | |
32a121cb | 257 | int get_rate(unsigned int *rate, const char *str) |
aba5acdf SH |
258 | { |
259 | char *p; | |
260 | double bps = strtod(str, &p); | |
26ab0b10 | 261 | const struct rate_suffix *s; |
aba5acdf SH |
262 | |
263 | if (p == str) | |
264 | return -1; | |
265 | ||
26ab0b10 SH |
266 | for (s = suffixes; s->name; ++s) { |
267 | if (strcasecmp(s->name, p) == 0) { | |
a303853e ED |
268 | bps *= s->scale; |
269 | p += strlen(p); | |
270 | break; | |
26ab0b10 SH |
271 | } |
272 | } | |
273 | ||
a303853e ED |
274 | if (*p) |
275 | return -1; /* unknown suffix */ | |
276 | ||
277 | bps /= 8; /* -> bytes per second */ | |
278 | *rate = bps; | |
279 | /* detect if an overflow happened */ | |
280 | if (*rate != floor(bps)) | |
281 | return -1; | |
282 | return 0; | |
aba5acdf SH |
283 | } |
284 | ||
8334bb32 ED |
285 | int get_rate64(__u64 *rate, const char *str) |
286 | { | |
287 | char *p; | |
288 | double bps = strtod(str, &p); | |
289 | const struct rate_suffix *s; | |
290 | ||
291 | if (p == str) | |
292 | return -1; | |
293 | ||
294 | for (s = suffixes; s->name; ++s) { | |
295 | if (strcasecmp(s->name, p) == 0) { | |
296 | bps *= s->scale; | |
297 | p += strlen(p); | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
302 | if (*p) | |
303 | return -1; /* unknown suffix */ | |
304 | ||
305 | bps /= 8; /* -> bytes per second */ | |
306 | *rate = bps; | |
307 | return 0; | |
308 | } | |
309 | ||
8f7574ed | 310 | void print_rate(char *buf, int len, __u64 rate) |
aba5acdf | 311 | { |
d40b38b4 | 312 | extern int use_iec; |
8cecdc28 ED |
313 | unsigned long kilo = use_iec ? 1024 : 1000; |
314 | const char *str = use_iec ? "i" : ""; | |
8cecdc28 | 315 | static char *units[5] = {"", "K", "M", "G", "T"}; |
ad1fe0d8 | 316 | int i; |
d40b38b4 | 317 | |
8cecdc28 ED |
318 | rate <<= 3; /* bytes/sec -> bits/sec */ |
319 | ||
ad1fe0d8 | 320 | for (i = 0; i < ARRAY_SIZE(units) - 1; i++) { |
8cecdc28 ED |
321 | if (rate < kilo) |
322 | break; | |
323 | if (((rate % kilo) != 0) && rate < 1000*kilo) | |
324 | break; | |
325 | rate /= kilo; | |
d40b38b4 | 326 | } |
ad1fe0d8 | 327 | |
8cecdc28 | 328 | snprintf(buf, len, "%.0f%s%sbit", (double)rate, units[i], str); |
aba5acdf SH |
329 | } |
330 | ||
32a121cb | 331 | char *sprint_rate(__u64 rate, char *buf) |
aba5acdf | 332 | { |
d40b38b4 | 333 | print_rate(buf, SPRINT_BSIZE-1, rate); |
aba5acdf SH |
334 | return buf; |
335 | } | |
336 | ||
32a121cb | 337 | int get_time(unsigned int *time, const char *str) |
aba5acdf SH |
338 | { |
339 | double t; | |
340 | char *p; | |
341 | ||
342 | t = strtod(str, &p); | |
343 | if (p == str) | |
344 | return -1; | |
345 | ||
346 | if (*p) { | |
32a121cb SH |
347 | if (strcasecmp(p, "s") == 0 || strcasecmp(p, "sec") == 0 || |
348 | strcasecmp(p, "secs") == 0) | |
f0bda7e5 | 349 | t *= TIME_UNITS_PER_SEC; |
32a121cb | 350 | else if (strcasecmp(p, "ms") == 0 || strcasecmp(p, "msec") == 0 || |
aba5acdf | 351 | strcasecmp(p, "msecs") == 0) |
f0bda7e5 | 352 | t *= TIME_UNITS_PER_SEC/1000; |
32a121cb | 353 | else if (strcasecmp(p, "us") == 0 || strcasecmp(p, "usec") == 0 || |
aba5acdf | 354 | strcasecmp(p, "usecs") == 0) |
f0bda7e5 | 355 | t *= TIME_UNITS_PER_SEC/1000000; |
aba5acdf SH |
356 | else |
357 | return -1; | |
358 | } | |
359 | ||
8f34caaf | 360 | *time = t; |
aba5acdf SH |
361 | return 0; |
362 | } | |
363 | ||
364 | ||
8f34caaf | 365 | void print_time(char *buf, int len, __u32 time) |
aba5acdf | 366 | { |
8f34caaf | 367 | double tmp = time; |
aba5acdf | 368 | |
f0bda7e5 PM |
369 | if (tmp >= TIME_UNITS_PER_SEC) |
370 | snprintf(buf, len, "%.1fs", tmp/TIME_UNITS_PER_SEC); | |
371 | else if (tmp >= TIME_UNITS_PER_SEC/1000) | |
372 | snprintf(buf, len, "%.1fms", tmp/(TIME_UNITS_PER_SEC/1000)); | |
aba5acdf | 373 | else |
89151447 | 374 | snprintf(buf, len, "%uus", time); |
aba5acdf SH |
375 | } |
376 | ||
32a121cb | 377 | char *sprint_time(__u32 time, char *buf) |
aba5acdf | 378 | { |
8f34caaf | 379 | print_time(buf, SPRINT_BSIZE-1, time); |
aba5acdf SH |
380 | return buf; |
381 | } | |
382 | ||
32a121cb | 383 | char *sprint_ticks(__u32 ticks, char *buf) |
bd29e35d PM |
384 | { |
385 | return sprint_time(tc_core_tick2time(ticks), buf); | |
386 | } | |
387 | ||
32a121cb | 388 | int get_size(unsigned int *size, const char *str) |
aba5acdf SH |
389 | { |
390 | double sz; | |
391 | char *p; | |
392 | ||
393 | sz = strtod(str, &p); | |
394 | if (p == str) | |
395 | return -1; | |
396 | ||
397 | if (*p) { | |
32a121cb | 398 | if (strcasecmp(p, "kb") == 0 || strcasecmp(p, "k") == 0) |
aba5acdf | 399 | sz *= 1024; |
32a121cb | 400 | else if (strcasecmp(p, "gb") == 0 || strcasecmp(p, "g") == 0) |
dbd90dc2 SH |
401 | sz *= 1024*1024*1024; |
402 | else if (strcasecmp(p, "gbit") == 0) | |
403 | sz *= 1024*1024*1024/8; | |
32a121cb | 404 | else if (strcasecmp(p, "mb") == 0 || strcasecmp(p, "m") == 0) |
aba5acdf SH |
405 | sz *= 1024*1024; |
406 | else if (strcasecmp(p, "mbit") == 0) | |
407 | sz *= 1024*1024/8; | |
408 | else if (strcasecmp(p, "kbit") == 0) | |
409 | sz *= 1024/8; | |
410 | else if (strcasecmp(p, "b") != 0) | |
411 | return -1; | |
412 | } | |
413 | ||
414 | *size = sz; | |
415 | return 0; | |
416 | } | |
417 | ||
32a121cb | 418 | int get_size_and_cell(unsigned int *size, int *cell_log, char *str) |
aba5acdf | 419 | { |
32a121cb | 420 | char *slash = strchr(str, '/'); |
aba5acdf SH |
421 | |
422 | if (slash) | |
423 | *slash = 0; | |
424 | ||
425 | if (get_size(size, str)) | |
426 | return -1; | |
427 | ||
428 | if (slash) { | |
429 | int cell; | |
430 | int i; | |
431 | ||
432 | if (get_integer(&cell, slash+1, 0)) | |
433 | return -1; | |
434 | *slash = '/'; | |
435 | ||
32a121cb | 436 | for (i = 0; i < 32; i++) { |
aba5acdf SH |
437 | if ((1<<i) == cell) { |
438 | *cell_log = i; | |
439 | return 0; | |
440 | } | |
441 | } | |
442 | return -1; | |
443 | } | |
444 | return 0; | |
445 | } | |
446 | ||
d40b38b4 | 447 | void print_size(char *buf, int len, __u32 sz) |
aba5acdf SH |
448 | { |
449 | double tmp = sz; | |
450 | ||
451 | if (sz >= 1024*1024 && fabs(1024*1024*rint(tmp/(1024*1024)) - sz) < 1024) | |
452 | snprintf(buf, len, "%gMb", rint(tmp/(1024*1024))); | |
453 | else if (sz >= 1024 && fabs(1024*rint(tmp/1024) - sz) < 16) | |
454 | snprintf(buf, len, "%gKb", rint(tmp/1024)); | |
455 | else | |
456 | snprintf(buf, len, "%ub", sz); | |
aba5acdf SH |
457 | } |
458 | ||
32a121cb | 459 | char *sprint_size(__u32 size, char *buf) |
aba5acdf | 460 | { |
d40b38b4 | 461 | print_size(buf, SPRINT_BSIZE-1, size); |
aba5acdf SH |
462 | return buf; |
463 | } | |
464 | ||
d40b38b4 | 465 | void print_qdisc_handle(char *buf, int len, __u32 h) |
aba5acdf SH |
466 | { |
467 | snprintf(buf, len, "%x:", TC_H_MAJ(h)>>16); | |
aba5acdf SH |
468 | } |
469 | ||
32a121cb | 470 | char *sprint_qdisc_handle(__u32 h, char *buf) |
aba5acdf | 471 | { |
d40b38b4 | 472 | print_qdisc_handle(buf, SPRINT_BSIZE-1, h); |
aba5acdf SH |
473 | return buf; |
474 | } | |
475 | ||
e67aba55 | 476 | static const char *action_n2a(int action) |
2373fde9 | 477 | { |
70932006 PS |
478 | static char buf[64]; |
479 | ||
d19f72f7 JP |
480 | if (TC_ACT_EXT_CMP(action, TC_ACT_GOTO_CHAIN)) |
481 | return "goto"; | |
35f2a763 JHS |
482 | if (TC_ACT_EXT_CMP(action, TC_ACT_JUMP)) |
483 | return "jump"; | |
2373fde9 | 484 | switch (action) { |
70932006 | 485 | case TC_ACT_UNSPEC: |
2373fde9 | 486 | return "continue"; |
2373fde9 SH |
487 | case TC_ACT_OK: |
488 | return "pass"; | |
2373fde9 SH |
489 | case TC_ACT_SHOT: |
490 | return "drop"; | |
2373fde9 SH |
491 | case TC_ACT_RECLASSIFY: |
492 | return "reclassify"; | |
493 | case TC_ACT_PIPE: | |
494 | return "pipe"; | |
495 | case TC_ACT_STOLEN: | |
496 | return "stolen"; | |
d5ebd6fd JP |
497 | case TC_ACT_TRAP: |
498 | return "trap"; | |
2373fde9 | 499 | default: |
70932006 | 500 | snprintf(buf, 64, "%d", action); |
2373fde9 SH |
501 | return buf; |
502 | } | |
503 | } | |
aba5acdf | 504 | |
53aadc52 PS |
505 | /* Convert action branch name into numeric format. |
506 | * | |
507 | * Parameters: | |
508 | * @arg - string to parse | |
509 | * @result - pointer to output variable | |
510 | * @allow_num - whether @arg may be in numeric format already | |
511 | * | |
512 | * In error case, returns -1 and does not touch @result. Otherwise returns 0. | |
513 | */ | |
6f7df6b2 | 514 | int action_a2n(char *arg, int *result, bool allow_num) |
2373fde9 | 515 | { |
53aadc52 PS |
516 | int n; |
517 | char dummy; | |
518 | struct { | |
519 | const char *a; | |
520 | int n; | |
521 | } a2n[] = { | |
522 | {"continue", TC_ACT_UNSPEC}, | |
523 | {"drop", TC_ACT_SHOT}, | |
524 | {"shot", TC_ACT_SHOT}, | |
525 | {"pass", TC_ACT_OK}, | |
526 | {"ok", TC_ACT_OK}, | |
527 | {"reclassify", TC_ACT_RECLASSIFY}, | |
528 | {"pipe", TC_ACT_PIPE}, | |
d19f72f7 | 529 | {"goto", TC_ACT_GOTO_CHAIN}, |
35f2a763 | 530 | {"jump", TC_ACT_JUMP}, |
d5ebd6fd | 531 | {"trap", TC_ACT_TRAP}, |
53aadc52 PS |
532 | { NULL }, |
533 | }, *iter; | |
534 | ||
535 | for (iter = a2n; iter->a; iter++) { | |
536 | if (matches(arg, iter->a) != 0) | |
537 | continue; | |
6f7df6b2 PS |
538 | n = iter->n; |
539 | goto out_ok; | |
2373fde9 | 540 | } |
53aadc52 PS |
541 | if (!allow_num || sscanf(arg, "%d%c", &n, &dummy) != 1) |
542 | return -1; | |
543 | ||
6f7df6b2 PS |
544 | out_ok: |
545 | if (result) | |
546 | *result = n; | |
2373fde9 SH |
547 | return 0; |
548 | } | |
549 | ||
c794b7b1 JP |
550 | static int __parse_action_control(int *argc_p, char ***argv_p, int *result_p, |
551 | bool allow_num, bool ignore_a2n_miss) | |
e67aba55 JP |
552 | { |
553 | int argc = *argc_p; | |
554 | char **argv = *argv_p; | |
555 | int result; | |
556 | ||
557 | if (!argc) | |
558 | return -1; | |
559 | if (action_a2n(*argv, &result, allow_num) == -1) { | |
c794b7b1 JP |
560 | if (!ignore_a2n_miss) |
561 | fprintf(stderr, "Bad action type %s\n", *argv); | |
e67aba55 JP |
562 | return -1; |
563 | } | |
d19f72f7 JP |
564 | if (result == TC_ACT_GOTO_CHAIN) { |
565 | __u32 chain_index; | |
566 | ||
567 | NEXT_ARG(); | |
568 | if (matches(*argv, "chain") != 0) { | |
569 | fprintf(stderr, "\"chain index\" expected\n"); | |
570 | return -1; | |
571 | } | |
572 | NEXT_ARG(); | |
573 | if (get_u32(&chain_index, *argv, 10) || | |
574 | chain_index > TC_ACT_EXT_VAL_MASK) { | |
575 | fprintf(stderr, "Illegal \"chain index\"\n"); | |
576 | return -1; | |
577 | } | |
578 | result |= chain_index; | |
579 | } | |
35f2a763 JHS |
580 | if (result == TC_ACT_JUMP) { |
581 | __u32 jump_cnt = 0; | |
582 | ||
583 | NEXT_ARG(); | |
584 | if (get_u32(&jump_cnt, *argv, 10) || | |
585 | jump_cnt > TC_ACT_EXT_VAL_MASK) { | |
586 | fprintf(stderr, "Invalid \"jump count\" (%s)\n", *argv); | |
587 | return -1; | |
588 | } | |
589 | result |= jump_cnt; | |
590 | } | |
75ef7b18 | 591 | NEXT_ARG_FWD(); |
e67aba55 JP |
592 | *argc_p = argc; |
593 | *argv_p = argv; | |
594 | *result_p = result; | |
595 | return 0; | |
596 | } | |
597 | ||
c794b7b1 JP |
598 | /* Parse action control including possible options. |
599 | * | |
600 | * Parameters: | |
601 | * @argc_p - pointer to argc to parse | |
602 | * @argv_p - pointer to argv to parse | |
603 | * @result_p - pointer to output variable | |
604 | * @allow_num - whether action may be in numeric format already | |
605 | * | |
606 | * In error case, returns -1 and does not touch @result_1p. Otherwise returns 0. | |
607 | */ | |
608 | int parse_action_control(int *argc_p, char ***argv_p, | |
609 | int *result_p, bool allow_num) | |
610 | { | |
611 | return __parse_action_control(argc_p, argv_p, result_p, | |
612 | allow_num, false); | |
613 | } | |
614 | ||
e67aba55 JP |
615 | /* Parse action control including possible options. |
616 | * | |
617 | * Parameters: | |
618 | * @argc_p - pointer to argc to parse | |
619 | * @argv_p - pointer to argv to parse | |
620 | * @result_p - pointer to output variable | |
621 | * @allow_num - whether action may be in numeric format already | |
622 | * @default_result - set as a result in case of parsing error | |
623 | * | |
624 | * In case there is an error during parsing, the default result is used. | |
625 | */ | |
626 | void parse_action_control_dflt(int *argc_p, char ***argv_p, | |
627 | int *result_p, bool allow_num, | |
628 | int default_result) | |
629 | { | |
c794b7b1 | 630 | if (__parse_action_control(argc_p, argv_p, result_p, allow_num, true)) |
e67aba55 JP |
631 | *result_p = default_result; |
632 | } | |
633 | ||
634 | static int parse_action_control_slash_spaces(int *argc_p, char ***argv_p, | |
635 | int *result1_p, int *result2_p, | |
636 | bool allow_num) | |
637 | { | |
638 | int argc = *argc_p; | |
639 | char **argv = *argv_p; | |
66942e52 | 640 | int result1 = -1, result2; |
e67aba55 JP |
641 | int *result_p = &result1; |
642 | int ok = 0; | |
643 | int ret; | |
644 | ||
645 | while (argc > 0) { | |
646 | switch (ok) { | |
647 | case 1: | |
648 | if (strcmp(*argv, "/") != 0) | |
649 | goto out; | |
650 | result_p = &result2; | |
651 | NEXT_ARG(); | |
652 | /* fall-through */ | |
653 | case 0: /* fall-through */ | |
654 | case 2: | |
655 | ret = parse_action_control(&argc, &argv, | |
656 | result_p, allow_num); | |
657 | if (ret) | |
658 | return ret; | |
659 | ok++; | |
660 | break; | |
661 | default: | |
662 | goto out; | |
663 | } | |
664 | } | |
665 | out: | |
666 | *result1_p = result1; | |
667 | if (ok == 2) | |
668 | *result2_p = result2; | |
669 | *argc_p = argc; | |
670 | *argv_p = argv; | |
671 | return 0; | |
672 | } | |
673 | ||
674 | /* Parse action control with slash including possible options. | |
675 | * | |
676 | * Parameters: | |
677 | * @argc_p - pointer to argc to parse | |
678 | * @argv_p - pointer to argv to parse | |
679 | * @result1_p - pointer to the first (before slash) output variable | |
680 | * @result2_p - pointer to the second (after slash) output variable | |
681 | * @allow_num - whether action may be in numeric format already | |
682 | * | |
683 | * In error case, returns -1 and does not touch @result*. Otherwise returns 0. | |
684 | */ | |
685 | int parse_action_control_slash(int *argc_p, char ***argv_p, | |
686 | int *result1_p, int *result2_p, bool allow_num) | |
687 | { | |
75ef7b18 | 688 | int result1, result2, argc = *argc_p; |
e67aba55 | 689 | char **argv = *argv_p; |
e67aba55 JP |
690 | char *p = strchr(*argv, '/'); |
691 | ||
692 | if (!p) | |
693 | return parse_action_control_slash_spaces(argc_p, argv_p, | |
694 | result1_p, result2_p, | |
695 | allow_num); | |
696 | *p = 0; | |
697 | if (action_a2n(*argv, &result1, allow_num)) { | |
b7c61286 | 698 | *p = '/'; |
e67aba55 JP |
699 | return -1; |
700 | } | |
701 | ||
702 | *p = '/'; | |
703 | if (action_a2n(p + 1, &result2, allow_num)) | |
704 | return -1; | |
705 | ||
706 | *result1_p = result1; | |
707 | *result2_p = result2; | |
75ef7b18 DC |
708 | NEXT_ARG_FWD(); |
709 | *argc_p = argc; | |
710 | *argv_p = argv; | |
e67aba55 JP |
711 | return 0; |
712 | } | |
713 | ||
714 | void print_action_control(FILE *f, const char *prefix, | |
715 | int action, const char *suffix) | |
716 | { | |
2704bd62 JP |
717 | print_string(PRINT_FP, NULL, "%s", prefix); |
718 | open_json_object("control_action"); | |
719 | print_string(PRINT_ANY, "type", "%s", action_n2a(action)); | |
d19f72f7 | 720 | if (TC_ACT_EXT_CMP(action, TC_ACT_GOTO_CHAIN)) |
2704bd62 JP |
721 | print_uint(PRINT_ANY, "chain", " chain %u", |
722 | action & TC_ACT_EXT_VAL_MASK); | |
35f2a763 | 723 | if (TC_ACT_EXT_CMP(action, TC_ACT_JUMP)) |
2704bd62 JP |
724 | print_uint(PRINT_ANY, "jump", " %u", |
725 | action & TC_ACT_EXT_VAL_MASK); | |
726 | close_json_object(); | |
727 | print_string(PRINT_FP, NULL, "%s", suffix); | |
e67aba55 JP |
728 | } |
729 | ||
32a121cb | 730 | int get_linklayer(unsigned int *val, const char *arg) |
292f29b4 JDB |
731 | { |
732 | int res; | |
733 | ||
734 | if (matches(arg, "ethernet") == 0) | |
735 | res = LINKLAYER_ETHERNET; | |
736 | else if (matches(arg, "atm") == 0) | |
737 | res = LINKLAYER_ATM; | |
738 | else if (matches(arg, "adsl") == 0) | |
739 | res = LINKLAYER_ATM; | |
740 | else | |
741 | return -1; /* Indicate error */ | |
742 | ||
743 | *val = res; | |
744 | return 0; | |
745 | } | |
746 | ||
32a121cb | 747 | void print_linklayer(char *buf, int len, unsigned int linklayer) |
839c8456 JK |
748 | { |
749 | switch (linklayer) { | |
750 | case LINKLAYER_UNSPEC: | |
751 | snprintf(buf, len, "%s", "unspec"); | |
752 | return; | |
753 | case LINKLAYER_ETHERNET: | |
754 | snprintf(buf, len, "%s", "ethernet"); | |
755 | return; | |
756 | case LINKLAYER_ATM: | |
757 | snprintf(buf, len, "%s", "atm"); | |
758 | return; | |
759 | default: | |
760 | snprintf(buf, len, "%s", "unknown"); | |
761 | return; | |
762 | } | |
763 | } | |
764 | ||
32a121cb | 765 | char *sprint_linklayer(unsigned int linklayer, char *buf) |
839c8456 JK |
766 | { |
767 | print_linklayer(buf, SPRINT_BSIZE-1, linklayer); | |
768 | return buf; | |
769 | } | |
770 | ||
32a121cb | 771 | void print_tm(FILE *f, const struct tcf_t *tm) |
2373fde9 | 772 | { |
5e8bc631 | 773 | int hz = get_user_hz(); |
32a121cb | 774 | |
2704bd62 JP |
775 | if (tm->install != 0) { |
776 | print_uint(PRINT_JSON, "installed", NULL, tm->install); | |
777 | print_uint(PRINT_FP, NULL, " installed %u sec", | |
778 | (unsigned int)(tm->install/hz)); | |
779 | } | |
780 | if (tm->lastuse != 0) { | |
781 | print_uint(PRINT_JSON, "last_used", NULL, tm->lastuse); | |
782 | print_uint(PRINT_FP, NULL, " used %u sec", | |
783 | (unsigned int)(tm->lastuse/hz)); | |
784 | } | |
785 | if (tm->expires != 0) { | |
786 | print_uint(PRINT_JSON, "expires", NULL, tm->expires); | |
787 | print_uint(PRINT_FP, NULL, " expires %u sec", | |
788 | (unsigned int)(tm->expires/hz)); | |
789 | } | |
2373fde9 | 790 | } |
e5879dc6 | 791 | |
792 | void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtattr **xstats) | |
793 | { | |
794 | SPRINT_BUF(b1); | |
7d69fd97 | 795 | struct rtattr *tbs[TCA_STATS_MAX + 1]; |
e5879dc6 | 796 | |
7d69fd97 | 797 | parse_rtattr_nested(tbs, TCA_STATS_MAX, rta); |
e5879dc6 | 798 | |
799 | if (tbs[TCA_STATS_BASIC]) { | |
800 | struct gnet_stats_basic bs = {0}; | |
32a121cb | 801 | |
e5879dc6 | 802 | memcpy(&bs, RTA_DATA(tbs[TCA_STATS_BASIC]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC]), sizeof(bs))); |
4fcec7f3 JP |
803 | print_string(PRINT_FP, NULL, "%s", prefix); |
804 | print_lluint(PRINT_ANY, "bytes", "Sent %llu bytes", bs.bytes); | |
805 | print_uint(PRINT_ANY, "packets", " %u pkt", bs.packets); | |
e5879dc6 | 806 | } |
807 | ||
808 | if (tbs[TCA_STATS_QUEUE]) { | |
809 | struct gnet_stats_queue q = {0}; | |
32a121cb | 810 | |
e5879dc6 | 811 | memcpy(&q, RTA_DATA(tbs[TCA_STATS_QUEUE]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_QUEUE]), sizeof(q))); |
4fcec7f3 JP |
812 | print_uint(PRINT_ANY, "drops", " (dropped %u", q.drops); |
813 | print_uint(PRINT_ANY, "overlimits", ", overlimits %u", | |
814 | q.overlimits); | |
815 | print_uint(PRINT_ANY, "requeues", " requeues %u) ", q.requeues); | |
e5879dc6 | 816 | } |
ae665a52 | 817 | |
8f7574ed ED |
818 | if (tbs[TCA_STATS_RATE_EST64]) { |
819 | struct gnet_stats_rate_est64 re = {0}; | |
820 | ||
821 | memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST64]), | |
822 | MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST64]), | |
823 | sizeof(re))); | |
4fcec7f3 JP |
824 | print_string(PRINT_FP, NULL, "\n%s", prefix); |
825 | print_lluint(PRINT_JSON, "rate", NULL, re.bps); | |
826 | print_string(PRINT_FP, NULL, "rate %s", | |
827 | sprint_rate(re.bps, b1)); | |
828 | print_lluint(PRINT_ANY, "pps", " %llupps", re.pps); | |
8f7574ed | 829 | } else if (tbs[TCA_STATS_RATE_EST]) { |
e5879dc6 | 830 | struct gnet_stats_rate_est re = {0}; |
8f7574ed ED |
831 | |
832 | memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST]), | |
833 | MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST]), sizeof(re))); | |
e5879dc6 | 834 | fprintf(fp, "\n%srate %s %upps ", |
835 | prefix, sprint_rate(re.bps, b1), re.pps); | |
4fcec7f3 JP |
836 | print_string(PRINT_FP, NULL, "\n%s", prefix); |
837 | print_uint(PRINT_JSON, "rate", NULL, re.bps); | |
838 | print_string(PRINT_FP, NULL, "rate %s", | |
839 | sprint_rate(re.bps, b1)); | |
840 | print_uint(PRINT_ANY, "pps", " %upps", re.pps); | |
e5879dc6 | 841 | } |
842 | ||
843 | if (tbs[TCA_STATS_QUEUE]) { | |
844 | struct gnet_stats_queue q = {0}; | |
32a121cb | 845 | |
e5879dc6 | 846 | memcpy(&q, RTA_DATA(tbs[TCA_STATS_QUEUE]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_QUEUE]), sizeof(q))); |
847 | if (!tbs[TCA_STATS_RATE_EST]) | |
4fcec7f3 JP |
848 | print_string(PRINT_FP, NULL, "\n%s", prefix); |
849 | print_uint(PRINT_JSON, "backlog", NULL, q.backlog); | |
850 | print_string(PRINT_FP, NULL, "backlog %s", | |
851 | sprint_size(q.backlog, b1)); | |
852 | print_uint(PRINT_ANY, "qlen", " %up", q.qlen); | |
44c76551 | 853 | print_uint(PRINT_FP, NULL, " requeues %u", q.requeues); |
e5879dc6 | 854 | } |
855 | ||
856 | if (xstats) | |
857 | *xstats = tbs[TCA_STATS_APP] ? : NULL; | |
858 | } | |
859 | ||
860 | void print_tcstats_attr(FILE *fp, struct rtattr *tb[], char *prefix, struct rtattr **xstats) | |
861 | { | |
862 | SPRINT_BUF(b1); | |
863 | ||
864 | if (tb[TCA_STATS2]) { | |
865 | print_tcstats2_attr(fp, tb[TCA_STATS2], prefix, xstats); | |
866 | if (xstats && NULL == *xstats) | |
867 | goto compat_xstats; | |
868 | return; | |
869 | } | |
870 | /* backward compatibility */ | |
871 | if (tb[TCA_STATS]) { | |
d17b136f | 872 | struct tc_stats st = {}; |
e5879dc6 | 873 | |
874 | /* handle case where kernel returns more/less than we know about */ | |
e5879dc6 | 875 | memcpy(&st, RTA_DATA(tb[TCA_STATS]), MIN(RTA_PAYLOAD(tb[TCA_STATS]), sizeof(st))); |
876 | ||
877 | fprintf(fp, "%sSent %llu bytes %u pkts (dropped %u, overlimits %u) ", | |
ae665a52 | 878 | prefix, (unsigned long long)st.bytes, st.packets, st.drops, |
e5879dc6 | 879 | st.overlimits); |
880 | ||
881 | if (st.bps || st.pps || st.qlen || st.backlog) { | |
882 | fprintf(fp, "\n%s", prefix); | |
883 | if (st.bps || st.pps) { | |
884 | fprintf(fp, "rate "); | |
885 | if (st.bps) | |
886 | fprintf(fp, "%s ", sprint_rate(st.bps, b1)); | |
887 | if (st.pps) | |
888 | fprintf(fp, "%upps ", st.pps); | |
889 | } | |
890 | if (st.qlen || st.backlog) { | |
891 | fprintf(fp, "backlog "); | |
892 | if (st.backlog) | |
893 | fprintf(fp, "%s ", sprint_size(st.backlog, b1)); | |
894 | if (st.qlen) | |
895 | fprintf(fp, "%up ", st.qlen); | |
896 | } | |
897 | } | |
898 | } | |
899 | ||
900 | compat_xstats: | |
901 | if (tb[TCA_XSTATS] && xstats) | |
902 | *xstats = tb[TCA_XSTATS]; | |
903 | } |