[mirror_iproute2.git] / tc / q_tbf.c

/*
 * q_tbf.c		TBF.
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>

#include "utils.h"
#include "tc_util.h"

static void explain(void)
{
	fprintf(stderr, "Usage: ... tbf limit BYTES burst BYTES[/BYTES] rate KBPS [ mtu BYTES[/BYTES] ]\n");
	fprintf(stderr, "               [ peakrate KBPS ] [ latency TIME ] ");
	fprintf(stderr, "[ overhead BYTES ] [ linklayer TYPE ]\n");
}

static void explain1(const char *arg, const char *val)
{
	fprintf(stderr, "tbf: illegal value for \"%s\": \"%s\"\n", arg, val);
}


static int tbf_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
{
	int ok = 0;
	struct tc_tbf_qopt opt;
	__u32 rtab[256];
	__u32 ptab[256];
	unsigned buffer = 0, mtu = 0, mpu = 0, latency = 0;
	int Rcell_log =  -1, Pcell_log = -1;
	unsigned short overhead = 0;
	unsigned int linklayer = LINKLAYER_ETHERNET; /* Assume ethernet */
	struct rtattr *tail;
	__u64 rate64 = 0, prate64 = 0;

	memset(&opt, 0, sizeof(opt));

	while (argc > 0) {
		if (matches(*argv, "limit") == 0) {
			NEXT_ARG();
			if (opt.limit) {
				fprintf(stderr, "tbf: duplicate \"limit\" specification\n");
				return -1;
			}
			if (latency) {
				fprintf(stderr, "tbf: specifying both \"latency\" and \"limit\" is not allowed\n");
				return -1;
			}
			if (get_size(&opt.limit, *argv)) {
				explain1("limit", *argv);
				return -1;
			}
			ok++;
		} else if (matches(*argv, "latency") == 0) {
			NEXT_ARG();
			if (latency) {
				fprintf(stderr, "tbf: duplicate \"latency\" specification\n");
				return -1;
			}
			if (opt.limit) {
				fprintf(stderr, "tbf: specifying both \"limit\" and \"/latency\" is not allowed\n");
				return -1;
			}
			if (get_time(&latency, *argv)) {
				explain1("latency", *argv);
				return -1;
			}
			ok++;
		} else if (matches(*argv, "burst") == 0 ||
			strcmp(*argv, "buffer") == 0 ||
			strcmp(*argv, "maxburst") == 0) {
			const char *parm_name = *argv;

			NEXT_ARG();
			if (buffer) {
				fprintf(stderr, "tbf: duplicate \"buffer/burst/maxburst\" specification\n");
				return -1;
			}
			if (get_size_and_cell(&buffer, &Rcell_log, *argv) < 0) {
				explain1(parm_name, *argv);
				return -1;
			}
			ok++;
		} else if (strcmp(*argv, "mtu") == 0 ||
			   strcmp(*argv, "minburst") == 0) {
			const char *parm_name = *argv;

			NEXT_ARG();
			if (mtu) {
				fprintf(stderr, "tbf: duplicate \"mtu/minburst\" specification\n");
				return -1;
			}
			if (get_size_and_cell(&mtu, &Pcell_log, *argv) < 0) {
				explain1(parm_name, *argv);
				return -1;
			}
			ok++;
		} else if (strcmp(*argv, "mpu") == 0) {
			NEXT_ARG();
			if (mpu) {
				fprintf(stderr, "tbf: duplicate \"mpu\" specification\n");
				return -1;
			}
			if (get_size(&mpu, *argv)) {
				explain1("mpu", *argv);
				return -1;
			}
			ok++;
		} else if (strcmp(*argv, "rate") == 0) {
			NEXT_ARG();
			if (rate64) {
				fprintf(stderr, "tbf: duplicate \"rate\" specification\n");
				return -1;
			}
			if (get_rate64(&rate64, *argv)) {
				explain1("rate", *argv);
				return -1;
			}
			ok++;
		} else if (matches(*argv, "peakrate") == 0) {
			NEXT_ARG();
			if (prate64) {
				fprintf(stderr, "tbf: duplicate \"peakrate\" specification\n");
				return -1;
			}
			if (get_rate64(&prate64, *argv)) {
				explain1("peakrate", *argv);
				return -1;
			}
			ok++;
		} else if (matches(*argv, "overhead") == 0) {
			NEXT_ARG();
			if (overhead) {
				fprintf(stderr, "tbf: duplicate \"overhead\" specification\n");
				return -1;
			}
			if (get_u16(&overhead, *argv, 10)) {
				explain1("overhead", *argv); return -1;
			}
		} else if (matches(*argv, "linklayer") == 0) {
			NEXT_ARG();
			if (get_linklayer(&linklayer, *argv)) {
				explain1("linklayer", *argv); return -1;
			}
		} else if (strcmp(*argv, "help") == 0) {
			explain();
			return -1;
		} else {
			fprintf(stderr, "tbf: unknown parameter \"%s\"\n", *argv);
			explain();
			return -1;
		}
		argc--; argv++;
	}

	int verdict = 0;

	/* Be nice to the user: try to emit all error messages in
	 * one go rather than reveal one more problem when a
	 * previous one has been fixed.
	 */
	if (rate64 == 0) {
		fprintf(stderr, "tbf: the \"rate\" parameter is mandatory.\n");
		verdict = -1;
	}
	if (!buffer) {
		fprintf(stderr, "tbf: the \"burst\" parameter is mandatory.\n");
		verdict = -1;
	}
	if (prate64) {
		if (!mtu) {
			fprintf(stderr, "tbf: when \"peakrate\" is specified, \"mtu\" must also be specified.\n");
			verdict = -1;
		}
	}

	if (opt.limit == 0 && latency == 0) {
		fprintf(stderr, "tbf: either \"limit\" or \"latency\" is required.\n");
		verdict = -1;
	}

	if (verdict != 0) {
		explain();
		return verdict;
	}

	opt.rate.rate = (rate64 >= (1ULL << 32)) ? ~0U : rate64;
	opt.peakrate.rate = (prate64 >= (1ULL << 32)) ? ~0U : prate64;

	if (opt.limit == 0) {
		double lim = rate64*(double)latency/TIME_UNITS_PER_SEC + buffer;

		if (prate64) {
			double lim2 = prate64*(double)latency/TIME_UNITS_PER_SEC + mtu;

			if (lim2 < lim)
				lim = lim2;
		}
		opt.limit = lim;
	}

	opt.rate.mpu      = mpu;
	opt.rate.overhead = overhead;
	if (tc_calc_rtable(&opt.rate, rtab, Rcell_log, mtu, linklayer) < 0) {
		fprintf(stderr, "tbf: failed to calculate rate table.\n");
		return -1;
	}
	opt.buffer = tc_calc_xmittime(opt.rate.rate, buffer);

	if (opt.peakrate.rate) {
		opt.peakrate.mpu      = mpu;
		opt.peakrate.overhead = overhead;
		if (tc_calc_rtable(&opt.peakrate, ptab, Pcell_log, mtu, linklayer) < 0) {
			fprintf(stderr, "tbf: failed to calculate peak rate table.\n");
			return -1;
		}
		opt.mtu = tc_calc_xmittime(opt.peakrate.rate, mtu);
	}

	tail = NLMSG_TAIL(n);
	addattr_l(n, 1024, TCA_OPTIONS, NULL, 0);
	addattr_l(n, 2024, TCA_TBF_PARMS, &opt, sizeof(opt));
	addattr_l(n, 2124, TCA_TBF_BURST, &buffer, sizeof(buffer));
	if (rate64 >= (1ULL << 32))
		addattr_l(n, 2124, TCA_TBF_RATE64, &rate64, sizeof(rate64));
	addattr_l(n, 3024, TCA_TBF_RTAB, rtab, 1024);
	if (opt.peakrate.rate) {
		if (prate64 >= (1ULL << 32))
			addattr_l(n, 3124, TCA_TBF_PRATE64, &prate64, sizeof(prate64));
		addattr_l(n, 3224, TCA_TBF_PBURST, &mtu, sizeof(mtu));
		addattr_l(n, 4096, TCA_TBF_PTAB, ptab, 1024);
	}
	tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
	return 0;
}

static int tbf_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
{
	struct rtattr *tb[TCA_TBF_MAX+1];
	struct tc_tbf_qopt *qopt;
	unsigned int linklayer;
	double buffer, mtu;
	double latency;
	__u64 rate64 = 0, prate64 = 0;

	SPRINT_BUF(b1);
	SPRINT_BUF(b2);
	SPRINT_BUF(b3);

	if (opt == NULL)
		return 0;

	parse_rtattr_nested(tb, TCA_TBF_MAX, opt);

	if (tb[TCA_TBF_PARMS] == NULL)
		return -1;

	qopt = RTA_DATA(tb[TCA_TBF_PARMS]);
	if (RTA_PAYLOAD(tb[TCA_TBF_PARMS])  < sizeof(*qopt))
		return -1;
	rate64 = qopt->rate.rate;
	if (tb[TCA_TBF_RATE64] &&
	    RTA_PAYLOAD(tb[TCA_TBF_RATE64]) >= sizeof(rate64))
		rate64 = rta_getattr_u64(tb[TCA_TBF_RATE64]);
	fprintf(f, "rate %s ", sprint_rate(rate64, b1));
	buffer = tc_calc_xmitsize(rate64, qopt->buffer);
	if (show_details) {
		fprintf(f, "burst %s/%u mpu %s ", sprint_size(buffer, b1),
			1<<qopt->rate.cell_log, sprint_size(qopt->rate.mpu, b2));
	} else {
		fprintf(f, "burst %s ", sprint_size(buffer, b1));
	}
	if (show_raw)
		fprintf(f, "[%08x] ", qopt->buffer);
	prate64 = qopt->peakrate.rate;
	if (tb[TCA_TBF_PRATE64] &&
	    RTA_PAYLOAD(tb[TCA_TBF_PRATE64]) >= sizeof(prate64))
		prate64 = rta_getattr_u64(tb[TCA_TBF_PRATE64]);
	if (prate64) {
		fprintf(f, "peakrate %s ", sprint_rate(prate64, b1));
		if (qopt->mtu || qopt->peakrate.mpu) {
			mtu = tc_calc_xmitsize(prate64, qopt->mtu);
			if (show_details) {
				fprintf(f, "mtu %s/%u mpu %s ", sprint_size(mtu, b1),
					1<<qopt->peakrate.cell_log, sprint_size(qopt->peakrate.mpu, b2));
			} else {
				fprintf(f, "minburst %s ", sprint_size(mtu, b1));
			}
			if (show_raw)
				fprintf(f, "[%08x] ", qopt->mtu);
		}
	}

	latency = TIME_UNITS_PER_SEC*(qopt->limit/(double)rate64) - tc_core_tick2time(qopt->buffer);
	if (prate64) {
		double lat2 = TIME_UNITS_PER_SEC*(qopt->limit/(double)prate64) - tc_core_tick2time(qopt->mtu);

		if (lat2 > latency)
			latency = lat2;
	}
	if (latency >= 0.0)
		fprintf(f, "lat %s ", sprint_time(latency, b1));
	if (show_raw || latency < 0.0)
		fprintf(f, "limit %s ", sprint_size(qopt->limit, b1));

	if (qopt->rate.overhead) {
		fprintf(f, "overhead %d", qopt->rate.overhead);
	}
	linklayer = (qopt->rate.linklayer & TC_LINKLAYER_MASK);
	if (linklayer > TC_LINKLAYER_ETHERNET || show_details)
		fprintf(f, "linklayer %s ", sprint_linklayer(linklayer, b3));

	return 0;
}

struct qdisc_util tbf_qdisc_util = {
	.id		= "tbf",
	.parse_qopt	= tbf_parse_opt,
	.print_qopt	= tbf_print_opt,
};
Commit	Line	Data
aba5acdf SH	1	/*
	2	* q_tbf.c TBF.
	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>
	16	#include <syslog.h>
	17	#include <fcntl.h>
	18	#include <sys/socket.h>
	19	#include <netinet/in.h>
	20	#include <arpa/inet.h>
	21	#include <string.h>
	22
	23	#include "utils.h"
	24	#include "tc_util.h"
	25
	26	static void explain(void)
	27	{
	28	fprintf(stderr, "Usage: ... tbf limit BYTES burst BYTES[/BYTES] rate KBPS [ mtu BYTES[/BYTES] ]\n");
2c42579f	29	fprintf(stderr, " [ peakrate KBPS ] [ latency TIME ] ");
292f29b4	30	fprintf(stderr, "[ overhead BYTES ] [ linklayer TYPE ]\n");
aba5acdf SH	31	}
aba5acdf SH	32
3bed7bb7	33	static void explain1(const char arg, const char val)
aba5acdf	34	{
3bed7bb7	35	fprintf(stderr, "tbf: illegal value for \"%s\": \"%s\"\n", arg, val);
aba5acdf SH	36	}
	37
	38
aba5acdf SH	39	static int tbf_parse_opt(struct qdisc_util qu, int argc, char argv, struct nlmsghdr n)
aba5acdf SH	40	{
32a121cb	41	int ok = 0;
aba5acdf SH	42	struct tc_tbf_qopt opt;
	43	__u32 rtab[256];
	44	__u32 ptab[256];
32a121cb SH	45	unsigned buffer = 0, mtu = 0, mpu = 0, latency = 0;
	46	int Rcell_log = -1, Pcell_log = -1;
	47	unsigned short overhead = 0;
292f29b4	48	unsigned int linklayer = LINKLAYER_ETHERNET; /* Assume ethernet */
aba5acdf	49	struct rtattr *tail;
ddc6243e	50	__u64 rate64 = 0, prate64 = 0;
aba5acdf SH	51
	52	memset(&opt, 0, sizeof(opt));
	53
	54	while (argc > 0) {
	55	if (matches(*argv, "limit") == 0) {
	56	NEXT_ARG();
3bed7bb7 KR	57	if (opt.limit) {
	58	fprintf(stderr, "tbf: duplicate \"limit\" specification\n");
	59	return -1;
	60	}
	61	if (latency) {
	62	fprintf(stderr, "tbf: specifying both \"latency\" and \"limit\" is not allowed\n");
aba5acdf SH	63	return -1;
	64	}
	65	if (get_size(&opt.limit, *argv)) {
3bed7bb7	66	explain1("limit", *argv);
aba5acdf SH	67	return -1;
	68	}
	69	ok++;
	70	} else if (matches(*argv, "latency") == 0) {
	71	NEXT_ARG();
3bed7bb7 KR	72	if (latency) {
	73	fprintf(stderr, "tbf: duplicate \"latency\" specification\n");
	74	return -1;
	75	}
	76	if (opt.limit) {
	77	fprintf(stderr, "tbf: specifying both \"limit\" and \"/latency\" is not allowed\n");
aba5acdf SH	78	return -1;
aba5acdf SH	79	}
8f34caaf	80	if (get_time(&latency, *argv)) {
3bed7bb7	81	explain1("latency", *argv);
aba5acdf SH	82	return -1;
	83	}
	84	ok++;
	85	} else if (matches(*argv, "burst") == 0 \|\|
	86	strcmp(*argv, "buffer") == 0 \|\|
	87	strcmp(*argv, "maxburst") == 0) {
3bed7bb7	88	const char parm_name = argv;
32a121cb	89
aba5acdf SH	90	NEXT_ARG();
aba5acdf SH	91	if (buffer) {
3bed7bb7	92	fprintf(stderr, "tbf: duplicate \"buffer/burst/maxburst\" specification\n");
aba5acdf SH	93	return -1;
	94	}
	95	if (get_size_and_cell(&buffer, &Rcell_log, *argv) < 0) {
3bed7bb7	96	explain1(parm_name, *argv);
aba5acdf SH	97	return -1;
	98	}
	99	ok++;
	100	} else if (strcmp(*argv, "mtu") == 0 \|\|
	101	strcmp(*argv, "minburst") == 0) {
3bed7bb7	102	const char parm_name = argv;
32a121cb	103
aba5acdf SH	104	NEXT_ARG();
aba5acdf SH	105	if (mtu) {
3bed7bb7	106	fprintf(stderr, "tbf: duplicate \"mtu/minburst\" specification\n");
aba5acdf SH	107	return -1;
	108	}
	109	if (get_size_and_cell(&mtu, &Pcell_log, *argv) < 0) {
3bed7bb7	110	explain1(parm_name, *argv);
aba5acdf SH	111	return -1;
	112	}
	113	ok++;
	114	} else if (strcmp(*argv, "mpu") == 0) {
	115	NEXT_ARG();
	116	if (mpu) {
3bed7bb7	117	fprintf(stderr, "tbf: duplicate \"mpu\" specification\n");
aba5acdf SH	118	return -1;
	119	}
	120	if (get_size(&mpu, *argv)) {
3bed7bb7	121	explain1("mpu", *argv);
aba5acdf SH	122	return -1;
	123	}
	124	ok++;
	125	} else if (strcmp(*argv, "rate") == 0) {
	126	NEXT_ARG();
ddc6243e	127	if (rate64) {
3bed7bb7	128	fprintf(stderr, "tbf: duplicate \"rate\" specification\n");
aba5acdf SH	129	return -1;
aba5acdf SH	130	}
ddc6243e	131	if (get_rate64(&rate64, *argv)) {
3bed7bb7	132	explain1("rate", *argv);
aba5acdf SH	133	return -1;
	134	}
	135	ok++;
	136	} else if (matches(*argv, "peakrate") == 0) {
	137	NEXT_ARG();
ddc6243e	138	if (prate64) {
3bed7bb7	139	fprintf(stderr, "tbf: duplicate \"peakrate\" specification\n");
aba5acdf SH	140	return -1;
aba5acdf SH	141	}
ddc6243e	142	if (get_rate64(&prate64, *argv)) {
3bed7bb7	143	explain1("peakrate", *argv);
aba5acdf SH	144	return -1;
	145	}
	146	ok++;
2c42579f JDB	147	} else if (matches(*argv, "overhead") == 0) {
	148	NEXT_ARG();
	149	if (overhead) {
3bed7bb7	150	fprintf(stderr, "tbf: duplicate \"overhead\" specification\n");
2c42579f JDB	151	return -1;
	152	}
	153	if (get_u16(&overhead, *argv, 10)) {
3bed7bb7	154	explain1("overhead", *argv); return -1;
2c42579f	155	}
292f29b4 JDB	156	} else if (matches(*argv, "linklayer") == 0) {
	157	NEXT_ARG();
	158	if (get_linklayer(&linklayer, *argv)) {
3bed7bb7	159	explain1("linklayer", *argv); return -1;
292f29b4	160	}
aba5acdf SH	161	} else if (strcmp(*argv, "help") == 0) {
	162	explain();
	163	return -1;
	164	} else {
3bed7bb7	165	fprintf(stderr, "tbf: unknown parameter \"%s\"\n", *argv);
aba5acdf SH	166	explain();
	167	return -1;
	168	}
	169	argc--; argv++;
	170	}
	171
32a121cb	172	int verdict = 0;
aba5acdf	173
32a121cb SH	174	/* Be nice to the user: try to emit all error messages in
	175	* one go rather than reveal one more problem when a
	176	* previous one has been fixed.
	177	*/
ddc6243e	178	if (rate64 == 0) {
3bed7bb7 KR	179	fprintf(stderr, "tbf: the \"rate\" parameter is mandatory.\n");
	180	verdict = -1;
	181	}
	182	if (!buffer) {
	183	fprintf(stderr, "tbf: the \"burst\" parameter is mandatory.\n");
	184	verdict = -1;
aba5acdf	185	}
ddc6243e	186	if (prate64) {
aba5acdf	187	if (!mtu) {
3bed7bb7 KR	188	fprintf(stderr, "tbf: when \"peakrate\" is specified, \"mtu\" must also be specified.\n");
3bed7bb7 KR	189	verdict = -1;
aba5acdf SH	190	}
	191	}
	192
	193	if (opt.limit == 0 && latency == 0) {
3bed7bb7 KR	194	fprintf(stderr, "tbf: either \"limit\" or \"latency\" is required.\n");
3bed7bb7 KR	195	verdict = -1;
aba5acdf SH	196	}
aba5acdf SH	197
32a121cb SH	198	if (verdict != 0) {
	199	explain();
	200	return verdict;
	201	}
3bed7bb7	202
ddc6243e YY	203	opt.rate.rate = (rate64 >= (1ULL << 32)) ? ~0U : rate64;
	204	opt.peakrate.rate = (prate64 >= (1ULL << 32)) ? ~0U : prate64;
	205
aba5acdf	206	if (opt.limit == 0) {
ddc6243e	207	double lim = rate64*(double)latency/TIME_UNITS_PER_SEC + buffer;
32a121cb	208
ddc6243e YY	209	if (prate64) {
ddc6243e YY	210	double lim2 = prate64*(double)latency/TIME_UNITS_PER_SEC + mtu;
32a121cb	211
aba5acdf SH	212	if (lim2 < lim)
	213	lim = lim2;
	214	}
	215	opt.limit = lim;
	216	}
	217
2c42579f JDB	218	opt.rate.mpu = mpu;
2c42579f JDB	219	opt.rate.overhead = overhead;
292f29b4	220	if (tc_calc_rtable(&opt.rate, rtab, Rcell_log, mtu, linklayer) < 0) {
3bed7bb7	221	fprintf(stderr, "tbf: failed to calculate rate table.\n");
aba5acdf SH	222	return -1;
	223	}
	224	opt.buffer = tc_calc_xmittime(opt.rate.rate, buffer);
d5f46f9c	225
aba5acdf	226	if (opt.peakrate.rate) {
2c42579f JDB	227	opt.peakrate.mpu = mpu;
2c42579f JDB	228	opt.peakrate.overhead = overhead;
292f29b4	229	if (tc_calc_rtable(&opt.peakrate, ptab, Pcell_log, mtu, linklayer) < 0) {
3bed7bb7	230	fprintf(stderr, "tbf: failed to calculate peak rate table.\n");
aba5acdf SH	231	return -1;
	232	}
	233	opt.mtu = tc_calc_xmittime(opt.peakrate.rate, mtu);
aba5acdf SH	234	}
aba5acdf SH	235
228569c3	236	tail = NLMSG_TAIL(n);
aba5acdf SH	237	addattr_l(n, 1024, TCA_OPTIONS, NULL, 0);
aba5acdf SH	238	addattr_l(n, 2024, TCA_TBF_PARMS, &opt, sizeof(opt));
a01de0a3	239	addattr_l(n, 2124, TCA_TBF_BURST, &buffer, sizeof(buffer));
ddc6243e YY	240	if (rate64 >= (1ULL << 32))
ddc6243e YY	241	addattr_l(n, 2124, TCA_TBF_RATE64, &rate64, sizeof(rate64));
aba5acdf	242	addattr_l(n, 3024, TCA_TBF_RTAB, rtab, 1024);
ddc6243e YY	243	if (opt.peakrate.rate) {
	244	if (prate64 >= (1ULL << 32))
	245	addattr_l(n, 3124, TCA_TBF_PRATE64, &prate64, sizeof(prate64));
a01de0a3	246	addattr_l(n, 3224, TCA_TBF_PBURST, &mtu, sizeof(mtu));
aba5acdf	247	addattr_l(n, 4096, TCA_TBF_PTAB, ptab, 1024);
ddc6243e	248	}
228569c3	249	tail->rta_len = (void ) NLMSG_TAIL(n) - (void ) tail;
aba5acdf SH	250	return 0;
	251	}
	252
	253	static int tbf_print_opt(struct qdisc_util qu, FILE f, struct rtattr *opt)
	254	{
ddc6243e	255	struct rtattr *tb[TCA_TBF_MAX+1];
aba5acdf	256	struct tc_tbf_qopt *qopt;
3e92ff52	257	unsigned int linklayer;
aba5acdf SH	258	double buffer, mtu;
aba5acdf SH	259	double latency;
ddc6243e	260	__u64 rate64 = 0, prate64 = 0;
32a121cb	261
aba5acdf SH	262	SPRINT_BUF(b1);
aba5acdf SH	263	SPRINT_BUF(b2);
3e92ff52	264	SPRINT_BUF(b3);
aba5acdf SH	265
	266	if (opt == NULL)
	267	return 0;
	268
ddc6243e	269	parse_rtattr_nested(tb, TCA_TBF_MAX, opt);
aba5acdf SH	270
	271	if (tb[TCA_TBF_PARMS] == NULL)
	272	return -1;
	273
	274	qopt = RTA_DATA(tb[TCA_TBF_PARMS]);
	275	if (RTA_PAYLOAD(tb[TCA_TBF_PARMS]) < sizeof(*qopt))
	276	return -1;
ddc6243e YY	277	rate64 = qopt->rate.rate;
	278	if (tb[TCA_TBF_RATE64] &&
	279	RTA_PAYLOAD(tb[TCA_TBF_RATE64]) >= sizeof(rate64))
	280	rate64 = rta_getattr_u64(tb[TCA_TBF_RATE64]);
	281	fprintf(f, "rate %s ", sprint_rate(rate64, b1));
	282	buffer = tc_calc_xmitsize(rate64, qopt->buffer);
aba5acdf SH	283	if (show_details) {
	284	fprintf(f, "burst %s/%u mpu %s ", sprint_size(buffer, b1),
	285	1<<qopt->rate.cell_log, sprint_size(qopt->rate.mpu, b2));
	286	} else {
	287	fprintf(f, "burst %s ", sprint_size(buffer, b1));
	288	}
	289	if (show_raw)
	290	fprintf(f, "[%08x] ", qopt->buffer);
ddc6243e YY	291	prate64 = qopt->peakrate.rate;
	292	if (tb[TCA_TBF_PRATE64] &&
	293	RTA_PAYLOAD(tb[TCA_TBF_PRATE64]) >= sizeof(prate64))
	294	prate64 = rta_getattr_u64(tb[TCA_TBF_PRATE64]);
	295	if (prate64) {
	296	fprintf(f, "peakrate %s ", sprint_rate(prate64, b1));
aba5acdf	297	if (qopt->mtu \|\| qopt->peakrate.mpu) {
ddc6243e	298	mtu = tc_calc_xmitsize(prate64, qopt->mtu);
aba5acdf SH	299	if (show_details) {
	300	fprintf(f, "mtu %s/%u mpu %s ", sprint_size(mtu, b1),
	301	1<<qopt->peakrate.cell_log, sprint_size(qopt->peakrate.mpu, b2));
	302	} else {
	303	fprintf(f, "minburst %s ", sprint_size(mtu, b1));
	304	}
	305	if (show_raw)
	306	fprintf(f, "[%08x] ", qopt->mtu);
	307	}
	308	}
	309
ddc6243e YY	310	latency = TIME_UNITS_PER_SEC*(qopt->limit/(double)rate64) - tc_core_tick2time(qopt->buffer);
	311	if (prate64) {
	312	double lat2 = TIME_UNITS_PER_SEC*(qopt->limit/(double)prate64) - tc_core_tick2time(qopt->mtu);
32a121cb	313
aba5acdf SH	314	if (lat2 > latency)
	315	latency = lat2;
	316	}
3ff10e82 SL	317	if (latency >= 0.0)
	318	fprintf(f, "lat %s ", sprint_time(latency, b1));
	319	if (show_raw \|\| latency < 0.0)
	320	fprintf(f, "limit %s ", sprint_size(qopt->limit, b1));
aba5acdf	321
2c42579f JDB	322	if (qopt->rate.overhead) {
	323	fprintf(f, "overhead %d", qopt->rate.overhead);
	324	}
3e92ff52 JDB	325	linklayer = (qopt->rate.linklayer & TC_LINKLAYER_MASK);
	326	if (linklayer > TC_LINKLAYER_ETHERNET \|\| show_details)
	327	fprintf(f, "linklayer %s ", sprint_linklayer(linklayer, b3));
2c42579f	328
aba5acdf SH	329	return 0;
	330	}
	331
95812b56	332	struct qdisc_util tbf_qdisc_util = {
f2f99e2e SH	333	.id = "tbf",
	334	.parse_qopt = tbf_parse_opt,
	335	.print_qopt = tbf_print_opt,
aba5acdf	336	};