Blame tc/tc_util.c

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/*
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 * tc_util.c		Misc TC utility functions.
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 *
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 *		This program is free software; you can redistribute it and/or
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 *		modify it under the terms of the GNU General Public License
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 *		as published by the Free Software Foundation; either version
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 *		2 of the License, or (at your option) any later version.
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 *
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 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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 *
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <string.h>
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#include <math.h>
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#include <errno.h>
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#include "utils.h"
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#include "names.h"
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#include "tc_util.h"
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#include "tc_common.h"
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#ifndef LIBDIR
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#define LIBDIR "/usr/lib"
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#endif
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static struct db_names *cls_names;
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#define NAMES_DB "/etc/iproute2/tc_cls"
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int cls_names_init(char *path)
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{
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	int ret;
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	cls_names = db_names_alloc();
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	if (!cls_names)
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		return -1;
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	ret = db_names_load(cls_names, path ?: NAMES_DB);
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	if (ret == -ENOENT && path) {
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		fprintf(stderr, "Can't open class names file: %s\n", path);
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		return -1;
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	}
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	if (ret) {
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		db_names_free(cls_names);
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		cls_names = NULL;
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	}
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	return 0;
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}
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void cls_names_uninit(void)
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{
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	db_names_free(cls_names);
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}
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const char *get_tc_lib(void)
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{
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	const char *lib_dir;
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	lib_dir = getenv("TC_LIB_DIR");
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	if (!lib_dir)
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		lib_dir = LIBDIR "/tc/";
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	return lib_dir;
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}
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int get_qdisc_handle(__u32 *h, const char *str)
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{
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	__u32 maj;
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	char *p;
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	maj = TC_H_UNSPEC;
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	if (strcmp(str, "none") == 0)
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		goto ok;
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	maj = strtoul(str, &p, 16);
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	if (p == str || maj >= (1 << 16))
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		return -1;
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	maj <<= 16;
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	if (*p != ':' && *p != 0)
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		return -1;
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ok:
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	*h = maj;
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	return 0;
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}
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int get_tc_classid(__u32 *h, const char *str)
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{
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	__u32 maj, min;
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	char *p;
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	maj = TC_H_ROOT;
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	if (strcmp(str, "root") == 0)
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		goto ok;
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	maj = TC_H_UNSPEC;
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	if (strcmp(str, "none") == 0)
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		goto ok;
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	maj = strtoul(str, &p, 16);
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	if (p == str) {
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		maj = 0;
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		if (*p != ':')
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			return -1;
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	}
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	if (*p == ':') {
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		if (maj >= (1<<16))
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			return -1;
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		maj <<= 16;
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		str = p+1;
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		min = strtoul(str, &p, 16);
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		if (*p != 0)
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			return -1;
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		if (min >= (1<<16))
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			return -1;
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		maj |= min;
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	} else if (*p != 0)
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		return -1;
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ok:
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	*h = maj;
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	return 0;
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}
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int print_tc_classid(char *buf, int blen, __u32 h)
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{
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	SPRINT_BUF(handle) = {};
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	int hlen = SPRINT_BSIZE - 1;
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	if (h == TC_H_ROOT)
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		sprintf(handle, "root");
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	else if (h == TC_H_UNSPEC)
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		snprintf(handle, hlen, "none");
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	else if (TC_H_MAJ(h) == 0)
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		snprintf(handle, hlen, ":%x", TC_H_MIN(h));
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	else if (TC_H_MIN(h) == 0)
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		snprintf(handle, hlen, "%x:", TC_H_MAJ(h) >> 16);
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	else
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		snprintf(handle, hlen, "%x:%x", TC_H_MAJ(h) >> 16, TC_H_MIN(h));
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	if (use_names) {
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		char clname[IDNAME_MAX] = {};
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		if (id_to_name(cls_names, h, clname))
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			snprintf(buf, blen, "%s#%s", clname, handle);
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		else
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			snprintf(buf, blen, "%s", handle);
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	} else {
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		snprintf(buf, blen, "%s", handle);
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	}
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	return 0;
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}
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char *sprint_tc_classid(__u32 h, char *buf)
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{
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	if (print_tc_classid(buf, SPRINT_BSIZE-1, h))
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		strcpy(buf, "???");
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	return buf;
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}
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/* See http://physics.nist.gov/cuu/Units/binary.html */
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static const struct rate_suffix {
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	const char *name;
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	double scale;
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} suffixes[] = {
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	{ "bit",	1. },
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	{ "Kibit",	1024. },
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	{ "kbit",	1000. },
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	{ "mibit",	1024.*1024. },
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	{ "mbit",	1000000. },
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	{ "gibit",	1024.*1024.*1024. },
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	{ "gbit",	1000000000. },
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	{ "tibit",	1024.*1024.*1024.*1024. },
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	{ "tbit",	1000000000000. },
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	{ "Bps",	8. },
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	{ "KiBps",	8.*1024. },
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	{ "KBps",	8000. },
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	{ "MiBps",	8.*1024*1024. },
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	{ "MBps",	8000000. },
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	{ "GiBps",	8.*1024.*1024.*1024. },
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	{ "GBps",	8000000000. },
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	{ "TiBps",	8.*1024.*1024.*1024.*1024. },
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	{ "TBps",	8000000000000. },
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	{ NULL }
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};
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/* Parse a percent e.g: '30%'
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 * return: 0 = ok, -1 = error, 1 = out of range
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 */
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int parse_percent(double *val, const char *str)
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{
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	char *p;
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	*val = strtod(str, &p) / 100.;
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	if (*val > 1.0 || *val < 0.0)
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		return 1;
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	if (*p && strcmp(p, "%"))
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		return -1;
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	return 0;
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}
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static int parse_percent_rate(char *rate, size_t len,
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			      const char *str, const char *dev)
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{
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	long dev_mbit;
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	int ret;
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	double perc, rate_bit;
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	char *str_perc = NULL;
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	if (!dev[0]) {
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		fprintf(stderr, "No device specified; specify device to rate limit by percentage\n");
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		return -1;
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	}
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	if (read_prop(dev, "speed", &dev_mbit))
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		return -1;
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	ret = sscanf(str, "%m[0-9.%]", &str_perc);
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	if (ret != 1)
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		goto malf;
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	ret = parse_percent(&perc, str_perc);
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	if (ret == 1) {
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		fprintf(stderr, "Invalid rate specified; should be between [0,100]%% but is %s\n", str);
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		goto err;
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	} else if (ret == -1) {
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		goto malf;
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	}
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	free(str_perc);
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	rate_bit = perc * dev_mbit * 1000 * 1000;
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	ret = snprintf(rate, len, "%lf", rate_bit);
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	if (ret <= 0 || ret >= len) {
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		fprintf(stderr, "Unable to parse calculated rate\n");
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		return -1;
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	}
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	return 0;
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malf:
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	fprintf(stderr, "Specified rate value could not be read or is malformed\n");
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err:
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	free(str_perc);
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	return -1;
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}
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int get_percent_rate(unsigned int *rate, const char *str, const char *dev)
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{
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	char r_str[20];
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	if (parse_percent_rate(r_str, sizeof(r_str), str, dev))
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		return -1;
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	return get_rate(rate, r_str);
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}
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int get_percent_rate64(__u64 *rate, const char *str, const char *dev)
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{
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	char r_str[20];
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	if (parse_percent_rate(r_str, sizeof(r_str), str, dev))
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		return -1;
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	return get_rate64(rate, r_str);
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}
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int get_rate(unsigned int *rate, const char *str)
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{
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	char *p;
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	double bps = strtod(str, &p);
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	const struct rate_suffix *s;
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	if (p == str)
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		return -1;
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	for (s = suffixes; s->name; ++s) {
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		if (strcasecmp(s->name, p) == 0) {
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			bps *= s->scale;
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			p += strlen(p);
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			break;
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		}
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	}
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	if (*p)
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		return -1; /* unknown suffix */
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	bps /= 8; /* -> bytes per second */
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	*rate = bps;
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	/* detect if an overflow happened */
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	if (*rate != floor(bps))
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		return -1;
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	return 0;
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}
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int get_rate64(__u64 *rate, const char *str)
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{
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	char *p;
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	double bps = strtod(str, &p);
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	const struct rate_suffix *s;
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	if (p == str)
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		return -1;
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	for (s = suffixes; s->name; ++s) {
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		if (strcasecmp(s->name, p) == 0) {
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			bps *= s->scale;
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			p += strlen(p);
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			break;
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		}
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	}
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	if (*p)
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		return -1; /* unknown suffix */
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	bps /= 8; /* -> bytes per second */
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	*rate = bps;
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	return 0;
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}
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void print_rate(char *buf, int len, __u64 rate)
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{
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	extern int use_iec;
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	unsigned long kilo = use_iec ? 1024 : 1000;
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	const char *str = use_iec ? "i" : "";
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	static char *units[5] = {"", "K", "M", "G", "T"};
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	int i;
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	rate <<= 3; /* bytes/sec -> bits/sec */
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	for (i = 0; i < ARRAY_SIZE(units) - 1; i++)  {
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		if (rate < kilo)
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			break;
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		if (((rate % kilo) != 0) && rate < 1000*kilo)
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			break;
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		rate /= kilo;
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	}
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	snprintf(buf, len, "%.0f%s%sbit", (double)rate, units[i], str);
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}
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char *sprint_rate(__u64 rate, char *buf)
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{
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	print_rate(buf, SPRINT_BSIZE-1, rate);
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	return buf;
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}
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char *sprint_ticks(__u32 ticks, char *buf)
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{
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	return sprint_time(tc_core_tick2time(ticks), buf);
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}
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int get_size(unsigned int *size, const char *str)
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{
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	double sz;
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	char *p;
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	sz = strtod(str, &p);
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	if (p == str)
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		return -1;
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	if (*p) {
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		if (strcasecmp(p, "kb") == 0 || strcasecmp(p, "k") == 0)
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			sz *= 1024;
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		else if (strcasecmp(p, "gb") == 0 || strcasecmp(p, "g") == 0)
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			sz *= 1024*1024*1024;
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		else if (strcasecmp(p, "gbit") == 0)
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			sz *= 1024*1024*1024/8;
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		else if (strcasecmp(p, "mb") == 0 || strcasecmp(p, "m") == 0)
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			sz *= 1024*1024;
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		else if (strcasecmp(p, "mbit") == 0)
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			sz *= 1024*1024/8;
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		else if (strcasecmp(p, "kbit") == 0)
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			sz *= 1024/8;
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		else if (strcasecmp(p, "b") != 0)
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			return -1;
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	}
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	*size = sz;
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	/* detect if an overflow happened */
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	if (*size != floor(sz))
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		return -1;
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	return 0;
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}
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int get_size_and_cell(unsigned int *size, int *cell_log, char *str)
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{
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	char *slash = strchr(str, '/');
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	if (slash)
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		*slash = 0;
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	if (get_size(size, str))
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		return -1;
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	if (slash) {
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		int cell;
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		int i;
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		if (get_integer(&cell, slash+1, 0))
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			return -1;
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		*slash = '/';
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		for (i = 0; i < 32; i++) {
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			if ((1<
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				*cell_log = i;
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				return 0;
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			}
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		}
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		return -1;
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	}
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	return 0;
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}
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void print_devname(enum output_type type, int ifindex)
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{
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	const char *ifname = ll_index_to_name(ifindex);
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	if (!is_json_context())
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		printf("dev ");
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	print_color_string(type, COLOR_IFNAME,
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			   "dev", "%s ", ifname);
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}
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static void print_size(char *buf, int len, __u32 sz)
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{
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	double tmp = sz;
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	if (sz >= 1024*1024 && fabs(1024*1024*rint(tmp/(1024*1024)) - sz) < 1024)
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		snprintf(buf, len, "%gMb", rint(tmp/(1024*1024)));
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	else if (sz >= 1024 && fabs(1024*rint(tmp/1024) - sz) < 16)
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		snprintf(buf, len, "%gKb", rint(tmp/1024));
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	else
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		snprintf(buf, len, "%ub", sz);
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}
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char *sprint_size(__u32 size, char *buf)
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{
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	print_size(buf, SPRINT_BSIZE-1, size);
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	return buf;
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}
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static const char *action_n2a(int action)
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{
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	static char buf[64];
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	if (TC_ACT_EXT_CMP(action, TC_ACT_GOTO_CHAIN))
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		return "goto";
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	if (TC_ACT_EXT_CMP(action, TC_ACT_JUMP))
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		return "jump";
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	switch (action) {
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	case TC_ACT_UNSPEC:
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		return "continue";
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	case TC_ACT_OK:
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		return "pass";
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	case TC_ACT_SHOT:
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		return "drop";
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	case TC_ACT_RECLASSIFY:
Packit Service 3880ab
		return "reclassify";
Packit Service 3880ab
	case TC_ACT_PIPE:
Packit Service 3880ab
		return "pipe";
Packit Service 3880ab
	case TC_ACT_STOLEN:
Packit Service 3880ab
		return "stolen";
Packit Service 3880ab
	case TC_ACT_TRAP:
Packit Service 3880ab
		return "trap";
Packit Service 3880ab
	default:
Packit Service 3880ab
		snprintf(buf, 64, "%d", action);
Packit Service 3880ab
		return buf;
Packit Service 3880ab
	}
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
/* Convert action branch name into numeric format.
Packit Service 3880ab
 *
Packit Service 3880ab
 * Parameters:
Packit Service 3880ab
 * @arg - string to parse
Packit Service 3880ab
 * @result - pointer to output variable
Packit Service 3880ab
 * @allow_num - whether @arg may be in numeric format already
Packit Service 3880ab
 *
Packit Service 3880ab
 * In error case, returns -1 and does not touch @result. Otherwise returns 0.
Packit Service 3880ab
 */
Packit Service 3880ab
int action_a2n(char *arg, int *result, bool allow_num)
Packit Service 3880ab
{
Packit Service 3880ab
	int n;
Packit Service 3880ab
	char dummy;
Packit Service 3880ab
	struct {
Packit Service 3880ab
		const char *a;
Packit Service 3880ab
		int n;
Packit Service 3880ab
	} a2n[] = {
Packit Service 3880ab
		{"continue", TC_ACT_UNSPEC},
Packit Service 3880ab
		{"drop", TC_ACT_SHOT},
Packit Service 3880ab
		{"shot", TC_ACT_SHOT},
Packit Service 3880ab
		{"pass", TC_ACT_OK},
Packit Service 3880ab
		{"ok", TC_ACT_OK},
Packit Service 3880ab
		{"reclassify", TC_ACT_RECLASSIFY},
Packit Service 3880ab
		{"pipe", TC_ACT_PIPE},
Packit Service 3880ab
		{"goto", TC_ACT_GOTO_CHAIN},
Packit Service 3880ab
		{"jump", TC_ACT_JUMP},
Packit Service 3880ab
		{"trap", TC_ACT_TRAP},
Packit Service 3880ab
		{ NULL },
Packit Service 3880ab
	}, *iter;
Packit Service 3880ab
Packit Service 3880ab
	for (iter = a2n; iter->a; iter++) {
Packit Service 3880ab
		if (matches(arg, iter->a) != 0)
Packit Service 3880ab
			continue;
Packit Service 3880ab
		n = iter->n;
Packit Service 3880ab
		goto out_ok;
Packit Service 3880ab
	}
Packit Service 3880ab
	if (!allow_num || sscanf(arg, "%d%c", &n, &dummy) != 1)
Packit Service 3880ab
		return -1;
Packit Service 3880ab
Packit Service 3880ab
out_ok:
Packit Service 3880ab
	if (result)
Packit Service 3880ab
		*result = n;
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int __parse_action_control(int *argc_p, char ***argv_p, int *result_p,
Packit Service 3880ab
				  bool allow_num, bool ignore_a2n_miss)
Packit Service 3880ab
{
Packit Service 3880ab
	int argc = *argc_p;
Packit Service 3880ab
	char **argv = *argv_p;
Packit Service 3880ab
	int result;
Packit Service 3880ab
Packit Service 3880ab
	if (!argc)
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	if (action_a2n(*argv, &result, allow_num) == -1) {
Packit Service 3880ab
		if (!ignore_a2n_miss)
Packit Service 3880ab
			fprintf(stderr, "Bad action type %s\n", *argv);
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
	if (result == TC_ACT_GOTO_CHAIN) {
Packit Service 3880ab
		__u32 chain_index;
Packit Service 3880ab
Packit Service 3880ab
		NEXT_ARG();
Packit Service 3880ab
		if (matches(*argv, "chain") != 0) {
Packit Service 3880ab
			fprintf(stderr, "\"chain index\" expected\n");
Packit Service 3880ab
			return -1;
Packit Service 3880ab
		}
Packit Service 3880ab
		NEXT_ARG();
Packit Service 3880ab
		if (get_u32(&chain_index, *argv, 10) ||
Packit Service 3880ab
		    chain_index > TC_ACT_EXT_VAL_MASK) {
Packit Service 3880ab
			fprintf(stderr, "Illegal \"chain index\"\n");
Packit Service 3880ab
			return -1;
Packit Service 3880ab
		}
Packit Service 3880ab
		result |= chain_index;
Packit Service 3880ab
	}
Packit Service 3880ab
	if (result == TC_ACT_JUMP) {
Packit Service 3880ab
		__u32 jump_cnt = 0;
Packit Service 3880ab
Packit Service 3880ab
		NEXT_ARG();
Packit Service 3880ab
		if (get_u32(&jump_cnt, *argv, 10) ||
Packit Service 3880ab
		    jump_cnt > TC_ACT_EXT_VAL_MASK) {
Packit Service 3880ab
			fprintf(stderr, "Invalid \"jump count\" (%s)\n", *argv);
Packit Service 3880ab
			return -1;
Packit Service 3880ab
		}
Packit Service 3880ab
		result |= jump_cnt;
Packit Service 3880ab
	}
Packit Service 3880ab
	NEXT_ARG_FWD();
Packit Service 3880ab
	*argc_p = argc;
Packit Service 3880ab
	*argv_p = argv;
Packit Service 3880ab
	*result_p = result;
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
/* Parse action control including possible options.
Packit Service 3880ab
 *
Packit Service 3880ab
 * Parameters:
Packit Service 3880ab
 * @argc_p - pointer to argc to parse
Packit Service 3880ab
 * @argv_p - pointer to argv to parse
Packit Service 3880ab
 * @result_p - pointer to output variable
Packit Service 3880ab
 * @allow_num - whether action may be in numeric format already
Packit Service 3880ab
 *
Packit Service 3880ab
 * In error case, returns -1 and does not touch @result_1p. Otherwise returns 0.
Packit Service 3880ab
 */
Packit Service 3880ab
int parse_action_control(int *argc_p, char ***argv_p,
Packit Service 3880ab
			 int *result_p, bool allow_num)
Packit Service 3880ab
{
Packit Service 3880ab
	return __parse_action_control(argc_p, argv_p, result_p,
Packit Service 3880ab
				      allow_num, false);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
/* Parse action control including possible options.
Packit Service 3880ab
 *
Packit Service 3880ab
 * Parameters:
Packit Service 3880ab
 * @argc_p - pointer to argc to parse
Packit Service 3880ab
 * @argv_p - pointer to argv to parse
Packit Service 3880ab
 * @result_p - pointer to output variable
Packit Service 3880ab
 * @allow_num - whether action may be in numeric format already
Packit Service 3880ab
 * @default_result - set as a result in case of parsing error
Packit Service 3880ab
 *
Packit Service 3880ab
 * In case there is an error during parsing, the default result is used.
Packit Service 3880ab
 */
Packit Service 3880ab
void parse_action_control_dflt(int *argc_p, char ***argv_p,
Packit Service 3880ab
			       int *result_p, bool allow_num,
Packit Service 3880ab
			       int default_result)
Packit Service 3880ab
{
Packit Service 3880ab
	if (__parse_action_control(argc_p, argv_p, result_p, allow_num, true))
Packit Service 3880ab
		*result_p = default_result;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int parse_action_control_slash_spaces(int *argc_p, char ***argv_p,
Packit Service 3880ab
					     int *result1_p, int *result2_p,
Packit Service 3880ab
					     bool allow_num)
Packit Service 3880ab
{
Packit Service 3880ab
	int argc = *argc_p;
Packit Service 3880ab
	char **argv = *argv_p;
Packit Service 3880ab
	int result1 = -1, result2;
Packit Service 3880ab
	int *result_p = &result1;
Packit Service 3880ab
	int ok = 0;
Packit Service 3880ab
	int ret;
Packit Service 3880ab
Packit Service 3880ab
	while (argc > 0) {
Packit Service 3880ab
		switch (ok) {
Packit Service 3880ab
		case 1:
Packit Service 3880ab
			if (strcmp(*argv, "/") != 0)
Packit Service 3880ab
				goto out;
Packit Service 3880ab
			result_p = &result2;
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			/* fall-through */
Packit Service 3880ab
		case 0: /* fall-through */
Packit Service 3880ab
		case 2:
Packit Service 3880ab
			ret = parse_action_control(&argc, &argv,
Packit Service 3880ab
						   result_p, allow_num);
Packit Service 3880ab
			if (ret)
Packit Service 3880ab
				return ret;
Packit Service 3880ab
			ok++;
Packit Service 3880ab
			break;
Packit Service 3880ab
		default:
Packit Service 3880ab
			goto out;
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
out:
Packit Service 3880ab
	*result1_p = result1;
Packit Service 3880ab
	if (ok == 2)
Packit Service 3880ab
		*result2_p = result2;
Packit Service 3880ab
	*argc_p = argc;
Packit Service 3880ab
	*argv_p = argv;
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
/* Parse action control with slash including possible options.
Packit Service 3880ab
 *
Packit Service 3880ab
 * Parameters:
Packit Service 3880ab
 * @argc_p - pointer to argc to parse
Packit Service 3880ab
 * @argv_p - pointer to argv to parse
Packit Service 3880ab
 * @result1_p - pointer to the first (before slash) output variable
Packit Service 3880ab
 * @result2_p - pointer to the second (after slash) output variable
Packit Service 3880ab
 * @allow_num - whether action may be in numeric format already
Packit Service 3880ab
 *
Packit Service 3880ab
 * In error case, returns -1 and does not touch @result*. Otherwise returns 0.
Packit Service 3880ab
 */
Packit Service 3880ab
int parse_action_control_slash(int *argc_p, char ***argv_p,
Packit Service 3880ab
			       int *result1_p, int *result2_p, bool allow_num)
Packit Service 3880ab
{
Packit Service 3880ab
	int result1, result2, argc = *argc_p;
Packit Service 3880ab
	char **argv = *argv_p;
Packit Service 3880ab
	char *p = strchr(*argv, '/');
Packit Service 3880ab
Packit Service 3880ab
	if (!p)
Packit Service 3880ab
		return parse_action_control_slash_spaces(argc_p, argv_p,
Packit Service 3880ab
							 result1_p, result2_p,
Packit Service 3880ab
							 allow_num);
Packit Service 3880ab
	*p = 0;
Packit Service 3880ab
	if (action_a2n(*argv, &result1, allow_num)) {
Packit Service 3880ab
		*p = '/';
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	*p = '/';
Packit Service 3880ab
	if (action_a2n(p + 1, &result2, allow_num))
Packit Service 3880ab
		return -1;
Packit Service 3880ab
Packit Service 3880ab
	*result1_p = result1;
Packit Service 3880ab
	*result2_p = result2;
Packit Service 3880ab
	NEXT_ARG_FWD();
Packit Service 3880ab
	*argc_p = argc;
Packit Service 3880ab
	*argv_p = argv;
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
void print_action_control(FILE *f, const char *prefix,
Packit Service 3880ab
			  int action, const char *suffix)
Packit Service 3880ab
{
Packit Service 3880ab
	print_string(PRINT_FP, NULL, "%s", prefix);
Packit Service 3880ab
	open_json_object("control_action");
Packit Service 3880ab
	print_string(PRINT_ANY, "type", "%s", action_n2a(action));
Packit Service 3880ab
	if (TC_ACT_EXT_CMP(action, TC_ACT_GOTO_CHAIN))
Packit Service 3880ab
		print_uint(PRINT_ANY, "chain", " chain %u",
Packit Service 3880ab
			   action & TC_ACT_EXT_VAL_MASK);
Packit Service 3880ab
	if (TC_ACT_EXT_CMP(action, TC_ACT_JUMP))
Packit Service 3880ab
		print_uint(PRINT_ANY, "jump", " %u",
Packit Service 3880ab
			   action & TC_ACT_EXT_VAL_MASK);
Packit Service 3880ab
	close_json_object();
Packit Service 3880ab
	print_string(PRINT_FP, NULL, "%s", suffix);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
int get_linklayer(unsigned int *val, const char *arg)
Packit Service 3880ab
{
Packit Service 3880ab
	int res;
Packit Service 3880ab
Packit Service 3880ab
	if (matches(arg, "ethernet") == 0)
Packit Service 3880ab
		res = LINKLAYER_ETHERNET;
Packit Service 3880ab
	else if (matches(arg, "atm") == 0)
Packit Service 3880ab
		res = LINKLAYER_ATM;
Packit Service 3880ab
	else if (matches(arg, "adsl") == 0)
Packit Service 3880ab
		res = LINKLAYER_ATM;
Packit Service 3880ab
	else
Packit Service 3880ab
		return -1; /* Indicate error */
Packit Service 3880ab
Packit Service 3880ab
	*val = res;
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static void print_linklayer(char *buf, int len, unsigned int linklayer)
Packit Service 3880ab
{
Packit Service 3880ab
	switch (linklayer) {
Packit Service 3880ab
	case LINKLAYER_UNSPEC:
Packit Service 3880ab
		snprintf(buf, len, "%s", "unspec");
Packit Service 3880ab
		return;
Packit Service 3880ab
	case LINKLAYER_ETHERNET:
Packit Service 3880ab
		snprintf(buf, len, "%s", "ethernet");
Packit Service 3880ab
		return;
Packit Service 3880ab
	case LINKLAYER_ATM:
Packit Service 3880ab
		snprintf(buf, len, "%s", "atm");
Packit Service 3880ab
		return;
Packit Service 3880ab
	default:
Packit Service 3880ab
		snprintf(buf, len, "%s", "unknown");
Packit Service 3880ab
		return;
Packit Service 3880ab
	}
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
char *sprint_linklayer(unsigned int linklayer, char *buf)
Packit Service 3880ab
{
Packit Service 3880ab
	print_linklayer(buf, SPRINT_BSIZE-1, linklayer);
Packit Service 3880ab
	return buf;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
void print_tm(FILE *f, const struct tcf_t *tm)
Packit Service 3880ab
{
Packit Service 3880ab
	int hz = get_user_hz();
Packit Service 3880ab
Packit Service 3880ab
	if (tm->install != 0)
Packit Service 3880ab
		print_uint(PRINT_ANY, "installed", " installed %u sec",
Packit Service 3880ab
			   tm->install / hz);
Packit Service 3880ab
Packit Service 3880ab
	if (tm->lastuse != 0)
Packit Service 3880ab
		print_uint(PRINT_ANY, "last_used", " used %u sec",
Packit Service 3880ab
			   tm->lastuse / hz);
Packit Service 3880ab
Packit Service 3880ab
	if (tm->firstuse != 0)
Packit Service 3880ab
		print_uint(PRINT_ANY, "first_used", " firstused %u sec",
Packit Service 3880ab
			   tm->firstuse / hz);
Packit Service 3880ab
Packit Service 3880ab
	if (tm->expires != 0)
Packit Service 3880ab
		print_uint(PRINT_ANY, "expires", " expires %u sec",
Packit Service 3880ab
			   tm->expires / hz);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static void print_tcstats_basic_hw(struct rtattr **tbs, char *prefix)
Packit Service 3880ab
{
Packit Service 3880ab
	struct gnet_stats_basic bs_hw;
Packit Service 3880ab
Packit Service 3880ab
	if (!tbs[TCA_STATS_BASIC_HW])
Packit Service 3880ab
		return;
Packit Service 3880ab
Packit Service 3880ab
	memcpy(&bs_hw, RTA_DATA(tbs[TCA_STATS_BASIC_HW]),
Packit Service 3880ab
	       MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC_HW]), sizeof(bs_hw)));
Packit Service 3880ab
Packit Service 3880ab
	if (bs_hw.bytes == 0 && bs_hw.packets == 0)
Packit Service 3880ab
		return;
Packit Service 3880ab
Packit Service 3880ab
	if (tbs[TCA_STATS_BASIC]) {
Packit Service 3880ab
		struct gnet_stats_basic bs;
Packit Service 3880ab
Packit Service 3880ab
		memcpy(&bs, RTA_DATA(tbs[TCA_STATS_BASIC]),
Packit Service 3880ab
		       MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC]),
Packit Service 3880ab
			   sizeof(bs)));
Packit Service 3880ab
Packit Service 3880ab
		if (bs.bytes >= bs_hw.bytes && bs.packets >= bs_hw.packets) {
Packit Service 3880ab
			print_nl();
Packit Service 3880ab
			print_string(PRINT_FP, NULL, "%s", prefix);
Packit Service 3880ab
			print_lluint(PRINT_ANY, "sw_bytes",
Packit Service 3880ab
				     "Sent software %llu bytes",
Packit Service 3880ab
				     bs.bytes - bs_hw.bytes);
Packit Service 3880ab
			print_uint(PRINT_ANY, "sw_packets", " %u pkt",
Packit Service 3880ab
				   bs.packets - bs_hw.packets);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	print_nl();
Packit Service 3880ab
	print_string(PRINT_FP, NULL, "%s", prefix);
Packit Service 3880ab
	print_lluint(PRINT_ANY, "hw_bytes", "Sent hardware %llu bytes",
Packit Service 3880ab
		     bs_hw.bytes);
Packit Service 3880ab
	print_uint(PRINT_ANY, "hw_packets", " %u pkt", bs_hw.packets);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtattr **xstats)
Packit Service 3880ab
{
Packit Service 3880ab
	SPRINT_BUF(b1);
Packit Service 3880ab
	struct rtattr *tbs[TCA_STATS_MAX + 1];
Packit Service 3880ab
Packit Service 3880ab
	parse_rtattr_nested(tbs, TCA_STATS_MAX, rta);
Packit Service 3880ab
Packit Service 3880ab
	if (tbs[TCA_STATS_BASIC]) {
Packit Service 3880ab
		struct gnet_stats_basic bs = {0};
Packit Service 3880ab
		__u64 packets64 = 0;
Packit Service 3880ab
Packit Service 3880ab
		if (tbs[TCA_STATS_PKT64])
Packit Service 3880ab
			packets64 = rta_getattr_u64(tbs[TCA_STATS_PKT64]);
Packit Service 3880ab
Packit Service 3880ab
		memcpy(&bs, RTA_DATA(tbs[TCA_STATS_BASIC]),
Packit Service 3880ab
		       MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC]), sizeof(bs)));
Packit Service 3880ab
		print_string(PRINT_FP, NULL, "%s", prefix);
Packit Service 3880ab
		print_lluint(PRINT_ANY, "bytes", "Sent %llu bytes", bs.bytes);
Packit Service 3880ab
		if (packets64)
Packit Service 3880ab
			print_lluint(PRINT_ANY, "packets",
Packit Service 3880ab
				     " %llu pkt", packets64);
Packit Service 3880ab
		else
Packit Service 3880ab
			print_uint(PRINT_ANY, "packets",
Packit Service 3880ab
				   " %u pkt", bs.packets);
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tbs[TCA_STATS_QUEUE]) {
Packit Service 3880ab
		struct gnet_stats_queue q = {0};
Packit Service 3880ab
Packit Service 3880ab
		memcpy(&q, RTA_DATA(tbs[TCA_STATS_QUEUE]),
Packit Service 3880ab
		       MIN(RTA_PAYLOAD(tbs[TCA_STATS_QUEUE]), sizeof(q)));
Packit Service 3880ab
		print_uint(PRINT_ANY, "drops", " (dropped %u", q.drops);
Packit Service 3880ab
		print_uint(PRINT_ANY, "overlimits", ", overlimits %u",
Packit Service 3880ab
			   q.overlimits);
Packit Service 3880ab
		print_uint(PRINT_ANY, "requeues", " requeues %u) ", q.requeues);
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tbs[TCA_STATS_BASIC_HW])
Packit Service 3880ab
		print_tcstats_basic_hw(tbs, prefix);
Packit Service 3880ab
Packit Service 3880ab
	if (tbs[TCA_STATS_RATE_EST64]) {
Packit Service 3880ab
		struct gnet_stats_rate_est64 re = {0};
Packit Service 3880ab
Packit Service 3880ab
		memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST64]),
Packit Service 3880ab
		       MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST64]),
Packit Service 3880ab
			   sizeof(re)));
Packit Service 3880ab
		print_string(PRINT_FP, NULL, "\n%s", prefix);
Packit Service 3880ab
		print_lluint(PRINT_JSON, "rate", NULL, re.bps);
Packit Service 3880ab
		print_string(PRINT_FP, NULL, "rate %s",
Packit Service 3880ab
			     sprint_rate(re.bps, b1));
Packit Service 3880ab
		print_lluint(PRINT_ANY, "pps", " %llupps", re.pps);
Packit Service 3880ab
	} else if (tbs[TCA_STATS_RATE_EST]) {
Packit Service 3880ab
		struct gnet_stats_rate_est re = {0};
Packit Service 3880ab
Packit Service 3880ab
		memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST]),
Packit Service 3880ab
		       MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST]), sizeof(re)));
Packit Service 3880ab
		print_string(PRINT_FP, NULL, "\n%s", prefix);
Packit Service 3880ab
		print_uint(PRINT_JSON, "rate", NULL, re.bps);
Packit Service 3880ab
		print_string(PRINT_FP, NULL, "rate %s",
Packit Service 3880ab
			     sprint_rate(re.bps, b1));
Packit Service 3880ab
		print_uint(PRINT_ANY, "pps", " %upps", re.pps);
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tbs[TCA_STATS_QUEUE]) {
Packit Service 3880ab
		struct gnet_stats_queue q = {0};
Packit Service 3880ab
Packit Service 3880ab
		memcpy(&q, RTA_DATA(tbs[TCA_STATS_QUEUE]),
Packit Service 3880ab
		       MIN(RTA_PAYLOAD(tbs[TCA_STATS_QUEUE]), sizeof(q)));
Packit Service 3880ab
		if (!tbs[TCA_STATS_RATE_EST])
Packit Service 3880ab
			print_nl();
Packit Service 3880ab
		print_uint(PRINT_JSON, "backlog", NULL, q.backlog);
Packit Service 3880ab
		print_string(PRINT_FP, NULL, "%s", prefix);
Packit Service 3880ab
		print_string(PRINT_FP, NULL, "backlog %s",
Packit Service 3880ab
			     sprint_size(q.backlog, b1));
Packit Service 3880ab
		print_uint(PRINT_ANY, "qlen", " %up", q.qlen);
Packit Service 3880ab
		print_uint(PRINT_FP, NULL, " requeues %u", q.requeues);
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (xstats)
Packit Service 3880ab
		*xstats = tbs[TCA_STATS_APP] ? : NULL;
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}
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Packit Service 3880ab
void print_tcstats_attr(FILE *fp, struct rtattr *tb[], char *prefix,
Packit Service 3880ab
			struct rtattr **xstats)
Packit Service 3880ab
{
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	SPRINT_BUF(b1);
Packit Service 3880ab
Packit Service 3880ab
	if (tb[TCA_STATS2]) {
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		print_tcstats2_attr(fp, tb[TCA_STATS2], prefix, xstats);
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		if (xstats && !*xstats)
Packit Service 3880ab
			goto compat_xstats;
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		return;
Packit Service 3880ab
	}
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	/* backward compatibility */
Packit Service 3880ab
	if (tb[TCA_STATS]) {
Packit Service 3880ab
		struct tc_stats st = {};
Packit Service 3880ab
Packit Service 3880ab
		/* handle case where kernel returns more/less than we know about */
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		memcpy(&st, RTA_DATA(tb[TCA_STATS]),
Packit Service 3880ab
		       MIN(RTA_PAYLOAD(tb[TCA_STATS]), sizeof(st)));
Packit Service 3880ab
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		fprintf(fp,
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			"%sSent %llu bytes %u pkts (dropped %u, overlimits %u) ",
Packit Service 3880ab
			prefix, (unsigned long long)st.bytes,
Packit Service 3880ab
			st.packets, st.drops, st.overlimits);
Packit Service 3880ab
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		if (st.bps || st.pps || st.qlen || st.backlog) {
Packit Service 3880ab
			fprintf(fp, "\n%s", prefix);
Packit Service 3880ab
			if (st.bps || st.pps) {
Packit Service 3880ab
				fprintf(fp, "rate ");
Packit Service 3880ab
				if (st.bps)
Packit Service 3880ab
					fprintf(fp, "%s ",
Packit Service 3880ab
						sprint_rate(st.bps, b1));
Packit Service 3880ab
				if (st.pps)
Packit Service 3880ab
					fprintf(fp, "%upps ", st.pps);
Packit Service 3880ab
			}
Packit Service 3880ab
			if (st.qlen || st.backlog) {
Packit Service 3880ab
				fprintf(fp, "backlog ");
Packit Service 3880ab
				if (st.backlog)
Packit Service 3880ab
					fprintf(fp, "%s ",
Packit Service 3880ab
						sprint_size(st.backlog, b1));
Packit Service 3880ab
				if (st.qlen)
Packit Service 3880ab
					fprintf(fp, "%up ", st.qlen);
Packit Service 3880ab
			}
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
compat_xstats:
Packit Service 3880ab
	if (tb[TCA_XSTATS] && xstats)
Packit Service 3880ab
		*xstats = tb[TCA_XSTATS];
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static void print_masked_type(__u32 type_max,
Packit Service 3880ab
			      __u32 (*rta_getattr_type)(const struct rtattr *),
Packit Service 3880ab
			      const char *name, struct rtattr *attr,
Packit Service 3880ab
			      struct rtattr *mask_attr, bool newline)
Packit Service 3880ab
{
Packit Service 3880ab
	SPRINT_BUF(namefrm);
Packit Service 3880ab
	__u32 value, mask;
Packit Service 3880ab
	SPRINT_BUF(out);
Packit Service 3880ab
	size_t done;
Packit Service 3880ab
Packit Service 3880ab
	if (!attr)
Packit Service 3880ab
		return;
Packit Service 3880ab
Packit Service 3880ab
	value = rta_getattr_type(attr);
Packit Service 3880ab
	mask = mask_attr ? rta_getattr_type(mask_attr) : type_max;
Packit Service 3880ab
Packit Service 3880ab
	if (is_json_context()) {
Packit Service 3880ab
		sprintf(namefrm, "\n  %s %%u", name);
Packit Service 3880ab
		print_hu(PRINT_ANY, name, namefrm,
Packit Service 3880ab
			 rta_getattr_type(attr));
Packit Service 3880ab
		if (mask != type_max) {
Packit Service 3880ab
			char mask_name[SPRINT_BSIZE-6];
Packit Service 3880ab
Packit Service 3880ab
			sprintf(mask_name, "%s_mask", name);
Packit Service 3880ab
			if (newline)
Packit Service 3880ab
				print_string(PRINT_FP, NULL, "%s ", _SL_);
Packit Service 3880ab
			sprintf(namefrm, " %s %%u", mask_name);
Packit Service 3880ab
			print_hu(PRINT_ANY, mask_name, namefrm, mask);
Packit Service 3880ab
		}
Packit Service 3880ab
	} else {
Packit Service 3880ab
		done = sprintf(out, "%u", value);
Packit Service 3880ab
		if (mask != type_max)
Packit Service 3880ab
			sprintf(out + done, "/0x%x", mask);
Packit Service 3880ab
		if (newline)
Packit Service 3880ab
			print_string(PRINT_FP, NULL, "%s ", _SL_);
Packit Service 3880ab
		sprintf(namefrm, " %s %%s", name);
Packit Service 3880ab
		print_string(PRINT_ANY, name, namefrm, out);
Packit Service 3880ab
	}
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
void print_masked_u32(const char *name, struct rtattr *attr,
Packit Service 3880ab
		      struct rtattr *mask_attr, bool newline)
Packit Service 3880ab
{
Packit Service 3880ab
	print_masked_type(UINT32_MAX, rta_getattr_u32, name, attr, mask_attr,
Packit Service 3880ab
			  newline);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static __u32 __rta_getattr_u16_u32(const struct rtattr *attr)
Packit Service 3880ab
{
Packit Service 3880ab
	return rta_getattr_u16(attr);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
void print_masked_u16(const char *name, struct rtattr *attr,
Packit Service 3880ab
		      struct rtattr *mask_attr, bool newline)
Packit Service 3880ab
{
Packit Service 3880ab
	print_masked_type(UINT16_MAX, __rta_getattr_u16_u32, name, attr,
Packit Service 3880ab
			  mask_attr, newline);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static __u32 __rta_getattr_u8_u32(const struct rtattr *attr)
Packit Service 3880ab
{
Packit Service 3880ab
	return rta_getattr_u8(attr);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
void print_masked_u8(const char *name, struct rtattr *attr,
Packit Service 3880ab
		     struct rtattr *mask_attr, bool newline)
Packit Service 3880ab
{
Packit Service 3880ab
	print_masked_type(UINT8_MAX,  __rta_getattr_u8_u32, name, attr,
Packit Service 3880ab
			  mask_attr, newline);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static __u32 __rta_getattr_be16_u32(const struct rtattr *attr)
Packit Service 3880ab
{
Packit Service 3880ab
	return rta_getattr_be16(attr);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
void print_masked_be16(const char *name, struct rtattr *attr,
Packit Service 3880ab
		       struct rtattr *mask_attr, bool newline)
Packit Service 3880ab
{
Packit Service 3880ab
	print_masked_type(UINT16_MAX, __rta_getattr_be16_u32, name, attr,
Packit Service 3880ab
			  mask_attr, newline);
Packit Service 3880ab
}