Blame ip/iplink_can.c

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/*
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 * iplink_can.c	CAN device support
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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:	Wolfgang Grandegger <wg@grandegger.com>
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <linux/can/netlink.h>
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#include "rt_names.h"
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#include "utils.h"
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#include "ip_common.h"
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static void print_usage(FILE *f)
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{
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	fprintf(f,
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		"Usage: ip link set DEVICE type can\n"
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		"\t[ bitrate BITRATE [ sample-point SAMPLE-POINT] ] |\n"
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		"\t[ tq TQ prop-seg PROP_SEG phase-seg1 PHASE-SEG1\n \t  phase-seg2 PHASE-SEG2 [ sjw SJW ] ]\n"
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		"\n"
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		"\t[ dbitrate BITRATE [ dsample-point SAMPLE-POINT] ] |\n"
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		"\t[ dtq TQ dprop-seg PROP_SEG dphase-seg1 PHASE-SEG1\n \t  dphase-seg2 PHASE-SEG2 [ dsjw SJW ] ]\n"
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		"\n"
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		"\t[ loopback { on | off } ]\n"
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		"\t[ listen-only { on | off } ]\n"
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		"\t[ triple-sampling { on | off } ]\n"
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		"\t[ one-shot { on | off } ]\n"
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		"\t[ berr-reporting { on | off } ]\n"
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		"\t[ fd { on | off } ]\n"
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		"\t[ fd-non-iso { on | off } ]\n"
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		"\t[ presume-ack { on | off } ]\n"
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		"\n"
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		"\t[ restart-ms TIME-MS ]\n"
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		"\t[ restart ]\n"
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		"\n"
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		"\t[ termination { 0..65535 } ]\n"
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		"\n"
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		"\tWhere: BITRATE	:= { 1..1000000 }\n"
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		"\t	  SAMPLE-POINT	:= { 0.000..0.999 }\n"
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		"\t	  TQ		:= { NUMBER }\n"
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		"\t	  PROP-SEG	:= { 1..8 }\n"
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		"\t	  PHASE-SEG1	:= { 1..8 }\n"
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		"\t	  PHASE-SEG2	:= { 1..8 }\n"
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		"\t	  SJW		:= { 1..4 }\n"
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		"\t	  RESTART-MS	:= { 0 | NUMBER }\n"
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		);
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}
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static void usage(void)
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{
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	print_usage(stderr);
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}
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static int get_float(float *val, const char *arg)
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{
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	float res;
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	char *ptr;
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	if (!arg || !*arg)
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		return -1;
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	res = strtof(arg, &ptr);
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	if (!ptr || ptr == arg || *ptr)
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		return -1;
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	*val = res;
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	return 0;
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}
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static void set_ctrlmode(char *name, char *arg,
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			 struct can_ctrlmode *cm, __u32 flags)
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{
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	if (strcmp(arg, "on") == 0) {
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		cm->flags |= flags;
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	} else if (strcmp(arg, "off") != 0) {
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		fprintf(stderr,
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			"Error: argument of \"%s\" must be \"on\" or \"off\", not \"%s\"\n",
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			name, arg);
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		exit(-1);
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	}
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	cm->mask |= flags;
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}
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static void print_ctrlmode(FILE *f, __u32 cm)
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{
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	open_json_array(PRINT_ANY, is_json_context() ? "ctrlmode" : "<");
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#define _PF(cmflag, cmname)						\
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	if (cm & cmflag) {						\
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		cm &= ~cmflag;						\
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		print_string(PRINT_ANY, NULL, cm ? "%s," : "%s", cmname); \
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	}
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	_PF(CAN_CTRLMODE_LOOPBACK, "LOOPBACK");
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	_PF(CAN_CTRLMODE_LISTENONLY, "LISTEN-ONLY");
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	_PF(CAN_CTRLMODE_3_SAMPLES, "TRIPLE-SAMPLING");
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	_PF(CAN_CTRLMODE_ONE_SHOT, "ONE-SHOT");
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	_PF(CAN_CTRLMODE_BERR_REPORTING, "BERR-REPORTING");
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	_PF(CAN_CTRLMODE_FD, "FD");
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	_PF(CAN_CTRLMODE_FD_NON_ISO, "FD-NON-ISO");
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	_PF(CAN_CTRLMODE_PRESUME_ACK, "PRESUME-ACK");
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#undef _PF
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	if (cm)
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		print_hex(PRINT_ANY, NULL, "%x", cm);
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	close_json_array(PRINT_ANY, "> ");
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}
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static int can_parse_opt(struct link_util *lu, int argc, char **argv,
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			 struct nlmsghdr *n)
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{
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	struct can_bittiming bt = {}, dbt = {};
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	struct can_ctrlmode cm = {0, 0};
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	while (argc > 0) {
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		if (matches(*argv, "bitrate") == 0) {
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			NEXT_ARG();
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			if (get_u32(&bt.bitrate, *argv, 0))
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				invarg("invalid \"bitrate\" value\n", *argv);
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		} else if (matches(*argv, "sample-point") == 0) {
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			float sp;
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			NEXT_ARG();
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			if (get_float(&sp, *argv))
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				invarg("invalid \"sample-point\" value\n",
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				       *argv);
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			bt.sample_point = (__u32)(sp * 1000);
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		} else if (matches(*argv, "tq") == 0) {
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			NEXT_ARG();
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			if (get_u32(&bt.tq, *argv, 0))
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				invarg("invalid \"tq\" value\n", *argv);
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		} else if (matches(*argv, "prop-seg") == 0) {
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			NEXT_ARG();
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			if (get_u32(&bt.prop_seg, *argv, 0))
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				invarg("invalid \"prop-seg\" value\n", *argv);
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		} else if (matches(*argv, "phase-seg1") == 0) {
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			NEXT_ARG();
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			if (get_u32(&bt.phase_seg1, *argv, 0))
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				invarg("invalid \"phase-seg1\" value\n", *argv);
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		} else if (matches(*argv, "phase-seg2") == 0) {
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			NEXT_ARG();
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			if (get_u32(&bt.phase_seg2, *argv, 0))
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				invarg("invalid \"phase-seg2\" value\n", *argv);
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		} else if (matches(*argv, "sjw") == 0) {
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			NEXT_ARG();
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			if (get_u32(&bt.sjw, *argv, 0))
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				invarg("invalid \"sjw\" value\n", *argv);
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		} else if (matches(*argv, "dbitrate") == 0) {
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			NEXT_ARG();
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			if (get_u32(&dbt.bitrate, *argv, 0))
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				invarg("invalid \"dbitrate\" value\n", *argv);
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		} else if (matches(*argv, "dsample-point") == 0) {
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			float sp;
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			NEXT_ARG();
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			if (get_float(&sp, *argv))
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				invarg("invalid \"dsample-point\" value\n", *argv);
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			dbt.sample_point = (__u32)(sp * 1000);
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		} else if (matches(*argv, "dtq") == 0) {
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			NEXT_ARG();
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			if (get_u32(&dbt.tq, *argv, 0))
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				invarg("invalid \"dtq\" value\n", *argv);
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		} else if (matches(*argv, "dprop-seg") == 0) {
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			NEXT_ARG();
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			if (get_u32(&dbt.prop_seg, *argv, 0))
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				invarg("invalid \"dprop-seg\" value\n", *argv);
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		} else if (matches(*argv, "dphase-seg1") == 0) {
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			NEXT_ARG();
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			if (get_u32(&dbt.phase_seg1, *argv, 0))
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				invarg("invalid \"dphase-seg1\" value\n", *argv);
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		} else if (matches(*argv, "dphase-seg2") == 0) {
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			NEXT_ARG();
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			if (get_u32(&dbt.phase_seg2, *argv, 0))
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				invarg("invalid \"dphase-seg2\" value\n", *argv);
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		} else if (matches(*argv, "dsjw") == 0) {
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			NEXT_ARG();
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			if (get_u32(&dbt.sjw, *argv, 0))
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				invarg("invalid \"dsjw\" value\n", *argv);
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		} else if (matches(*argv, "loopback") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("loopback", *argv, &cm,
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				     CAN_CTRLMODE_LOOPBACK);
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		} else if (matches(*argv, "listen-only") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("listen-only", *argv, &cm,
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				     CAN_CTRLMODE_LISTENONLY);
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		} else if (matches(*argv, "triple-sampling") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("triple-sampling", *argv, &cm,
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				     CAN_CTRLMODE_3_SAMPLES);
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		} else if (matches(*argv, "one-shot") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("one-shot", *argv, &cm,
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				     CAN_CTRLMODE_ONE_SHOT);
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		} else if (matches(*argv, "berr-reporting") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("berr-reporting", *argv, &cm,
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				     CAN_CTRLMODE_BERR_REPORTING);
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		} else if (matches(*argv, "fd") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("fd", *argv, &cm,
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				     CAN_CTRLMODE_FD);
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		} else if (matches(*argv, "fd-non-iso") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("fd-non-iso", *argv, &cm,
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				     CAN_CTRLMODE_FD_NON_ISO);
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		} else if (matches(*argv, "presume-ack") == 0) {
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			NEXT_ARG();
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			set_ctrlmode("presume-ack", *argv, &cm,
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				     CAN_CTRLMODE_PRESUME_ACK);
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		} else if (matches(*argv, "restart") == 0) {
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			__u32 val = 1;
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			addattr32(n, 1024, IFLA_CAN_RESTART, val);
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		} else if (matches(*argv, "restart-ms") == 0) {
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			__u32 val;
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			NEXT_ARG();
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			if (get_u32(&val, *argv, 0))
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				invarg("invalid \"restart-ms\" value\n", *argv);
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			addattr32(n, 1024, IFLA_CAN_RESTART_MS, val);
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		} else if (matches(*argv, "termination") == 0) {
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			__u16 val;
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			NEXT_ARG();
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			if (get_u16(&val, *argv, 0))
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				invarg("invalid \"termination\" value\n",
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				       *argv);
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			addattr16(n, 1024, IFLA_CAN_TERMINATION, val);
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		} else if (matches(*argv, "help") == 0) {
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			usage();
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			return -1;
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		} else {
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			fprintf(stderr, "can: unknown option \"%s\"\n", *argv);
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			usage();
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			return -1;
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		}
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		argc--, argv++;
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	}
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	if (bt.bitrate || bt.tq)
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		addattr_l(n, 1024, IFLA_CAN_BITTIMING, &bt, sizeof(bt));
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	if (dbt.bitrate || dbt.tq)
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		addattr_l(n, 1024, IFLA_CAN_DATA_BITTIMING, &dbt, sizeof(dbt));
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	if (cm.mask)
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		addattr_l(n, 1024, IFLA_CAN_CTRLMODE, &cm, sizeof(cm));
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	return 0;
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}
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static const char *can_state_names[CAN_STATE_MAX] = {
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	[CAN_STATE_ERROR_ACTIVE] = "ERROR-ACTIVE",
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	[CAN_STATE_ERROR_WARNING] = "ERROR-WARNING",
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	[CAN_STATE_ERROR_PASSIVE] = "ERROR-PASSIVE",
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	[CAN_STATE_BUS_OFF] = "BUS-OFF",
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	[CAN_STATE_STOPPED] = "STOPPED",
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	[CAN_STATE_SLEEPING] = "SLEEPING"
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};
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static void can_print_json_timing_min_max(const char *attr, int min, int max)
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{
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	open_json_object(attr);
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	print_int(PRINT_JSON, "min", NULL, min);
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	print_int(PRINT_JSON, "max", NULL, max);
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	close_json_object();
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}
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static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
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{
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	if (!tb)
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		return;
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	if (tb[IFLA_CAN_CTRLMODE]) {
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		struct can_ctrlmode *cm = RTA_DATA(tb[IFLA_CAN_CTRLMODE]);
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		if (cm->flags)
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			print_ctrlmode(f, cm->flags);
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	}
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	if (tb[IFLA_CAN_STATE]) {
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		uint32_t state = rta_getattr_u32(tb[IFLA_CAN_STATE]);
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		print_string(PRINT_ANY, "state", "state %s ", state < CAN_STATE_MAX ?
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			can_state_names[state] : "UNKNOWN");
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	}
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	if (tb[IFLA_CAN_BERR_COUNTER]) {
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		struct can_berr_counter *bc =
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			RTA_DATA(tb[IFLA_CAN_BERR_COUNTER]);
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		if (is_json_context()) {
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			open_json_object("berr_counter");
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			print_int(PRINT_JSON, "tx", NULL, bc->txerr);
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			print_int(PRINT_JSON, "rx", NULL, bc->rxerr);
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			close_json_object();
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		} else {
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			fprintf(f, "(berr-counter tx %d rx %d) ",
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				bc->txerr, bc->rxerr);
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		}
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	}
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	if (tb[IFLA_CAN_RESTART_MS]) {
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		__u32 *restart_ms = RTA_DATA(tb[IFLA_CAN_RESTART_MS]);
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		print_int(PRINT_ANY,
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			  "restart_ms",
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			  "restart-ms %d ",
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			  *restart_ms);
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	}
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	/* bittiming is irrelevant if fixed bitrate is defined */
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	if (tb[IFLA_CAN_BITTIMING] && !tb[IFLA_CAN_BITRATE_CONST]) {
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		struct can_bittiming *bt = RTA_DATA(tb[IFLA_CAN_BITTIMING]);
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		if (is_json_context()) {
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			json_writer_t *jw;
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			open_json_object("bittiming");
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			print_int(PRINT_ANY, "bitrate", NULL, bt->bitrate);
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			jw = get_json_writer();
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			jsonw_name(jw, "sample_point");
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			jsonw_printf(jw, "%.3f",
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				     (float) bt->sample_point / 1000);
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			print_int(PRINT_ANY, "tq", NULL, bt->tq);
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			print_int(PRINT_ANY, "prop_seg", NULL, bt->prop_seg);
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			print_int(PRINT_ANY, "phase_seg1",
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				  NULL, bt->phase_seg1);
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			print_int(PRINT_ANY, "phase_seg2",
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				  NULL, bt->phase_seg2);
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			print_int(PRINT_ANY, "sjw", NULL, bt->sjw);
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			close_json_object();
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		} else {
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			fprintf(f, "\n	  bitrate %d sample-point %.3f ",
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				bt->bitrate, (float) bt->sample_point / 1000.);
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			fprintf(f,
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				"\n	  tq %d prop-seg %d phase-seg1 %d phase-seg2 %d sjw %d",
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				bt->tq, bt->prop_seg,
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				bt->phase_seg1, bt->phase_seg2,
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				bt->sjw);
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		}
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	}
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	/* bittiming const is irrelevant if fixed bitrate is defined */
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	if (tb[IFLA_CAN_BITTIMING_CONST] && !tb[IFLA_CAN_BITRATE_CONST]) {
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		struct can_bittiming_const *btc =
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			RTA_DATA(tb[IFLA_CAN_BITTIMING_CONST]);
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		if (is_json_context()) {
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			open_json_object("bittiming_const");
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			print_string(PRINT_JSON, "name", NULL, btc->name);
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			can_print_json_timing_min_max("tseg1",
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						      btc->tseg1_min,
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						      btc->tseg1_max);
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			can_print_json_timing_min_max("tseg2",
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						      btc->tseg2_min,
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						      btc->tseg2_max);
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			can_print_json_timing_min_max("sjw", 1, btc->sjw_max);
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			can_print_json_timing_min_max("brp",
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						      btc->brp_min,
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						      btc->brp_max);
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			print_int(PRINT_JSON, "brp_inc", NULL, btc->brp_inc);
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			close_json_object();
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		} else {
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			fprintf(f, "\n	  %s: tseg1 %d..%d tseg2 %d..%d "
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				"sjw 1..%d brp %d..%d brp-inc %d",
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				btc->name, btc->tseg1_min, btc->tseg1_max,
Packit Service 3880ab
				btc->tseg2_min, btc->tseg2_max, btc->sjw_max,
Packit Service 3880ab
				btc->brp_min, btc->brp_max, btc->brp_inc);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tb[IFLA_CAN_BITRATE_CONST]) {
Packit Service 3880ab
		__u32 *bitrate_const = RTA_DATA(tb[IFLA_CAN_BITRATE_CONST]);
Packit Service 3880ab
		int bitrate_cnt = RTA_PAYLOAD(tb[IFLA_CAN_BITRATE_CONST]) /
Packit Service 3880ab
			sizeof(*bitrate_const);
Packit Service 3880ab
		int i;
Packit Service 3880ab
		__u32 bitrate = 0;
Packit Service 3880ab
Packit Service 3880ab
		if (tb[IFLA_CAN_BITTIMING]) {
Packit Service 3880ab
			struct can_bittiming *bt =
Packit Service 3880ab
				RTA_DATA(tb[IFLA_CAN_BITTIMING]);
Packit Service 3880ab
			bitrate = bt->bitrate;
Packit Service 3880ab
		}
Packit Service 3880ab
Packit Service 3880ab
		if (is_json_context()) {
Packit Service 3880ab
			print_uint(PRINT_JSON,
Packit Service 3880ab
				   "bittiming_bitrate",
Packit Service 3880ab
				   NULL, bitrate);
Packit Service 3880ab
			open_json_array(PRINT_JSON, "bitrate_const");
Packit Service 3880ab
			for (i = 0; i < bitrate_cnt; ++i)
Packit Service 3880ab
				print_uint(PRINT_JSON, NULL, NULL,
Packit Service 3880ab
					   bitrate_const[i]);
Packit Service 3880ab
			close_json_array(PRINT_JSON, NULL);
Packit Service 3880ab
		} else {
Packit Service 3880ab
			fprintf(f, "\n	  bitrate %u", bitrate);
Packit Service 3880ab
			fprintf(f, "\n	     [");
Packit Service 3880ab
Packit Service 3880ab
			for (i = 0; i < bitrate_cnt - 1; ++i) {
Packit Service 3880ab
				/* This will keep lines below 80 signs */
Packit Service 3880ab
				if (!(i % 6) && i)
Packit Service 3880ab
					fprintf(f, "\n	      ");
Packit Service 3880ab
Packit Service 3880ab
				fprintf(f, "%8u, ", bitrate_const[i]);
Packit Service 3880ab
			}
Packit Service 3880ab
Packit Service 3880ab
			if (!(i % 6) && i)
Packit Service 3880ab
				fprintf(f, "\n	      ");
Packit Service 3880ab
			fprintf(f, "%8u ]", bitrate_const[i]);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	/* data bittiming is irrelevant if fixed bitrate is defined */
Packit Service 3880ab
	if (tb[IFLA_CAN_DATA_BITTIMING] && !tb[IFLA_CAN_DATA_BITRATE_CONST]) {
Packit Service 3880ab
		struct can_bittiming *dbt =
Packit Service 3880ab
			RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]);
Packit Service 3880ab
Packit Service 3880ab
		if (is_json_context()) {
Packit Service 3880ab
			json_writer_t *jw;
Packit Service 3880ab
Packit Service 3880ab
			open_json_object("data_bittiming");
Packit Service 3880ab
			print_int(PRINT_JSON, "bitrate", NULL, dbt->bitrate);
Packit Service 3880ab
			jw = get_json_writer();
Packit Service 3880ab
			jsonw_name(jw, "sample_point");
Packit Service 3880ab
			jsonw_printf(jw, "%.3f",
Packit Service 3880ab
				     (float) dbt->sample_point / 1000.);
Packit Service 3880ab
			print_int(PRINT_JSON, "tq", NULL, dbt->tq);
Packit Service 3880ab
			print_int(PRINT_JSON, "prop_seg", NULL, dbt->prop_seg);
Packit Service 3880ab
			print_int(PRINT_JSON, "phase_seg1",
Packit Service 3880ab
				  NULL, dbt->phase_seg1);
Packit Service 3880ab
			print_int(PRINT_JSON, "phase_seg2",
Packit Service 3880ab
				  NULL, dbt->phase_seg2);
Packit Service 3880ab
			print_int(PRINT_JSON, "sjw", NULL, dbt->sjw);
Packit Service 3880ab
			close_json_object();
Packit Service 3880ab
		} else {
Packit Service 3880ab
			fprintf(f, "\n	  dbitrate %d dsample-point %.3f ",
Packit Service 3880ab
				dbt->bitrate,
Packit Service 3880ab
				(float) dbt->sample_point / 1000.);
Packit Service 3880ab
			fprintf(f, "\n	  dtq %d dprop-seg %d dphase-seg1 %d "
Packit Service 3880ab
				"dphase-seg2 %d dsjw %d",
Packit Service 3880ab
				dbt->tq, dbt->prop_seg, dbt->phase_seg1,
Packit Service 3880ab
				dbt->phase_seg2, dbt->sjw);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	/* data bittiming const is irrelevant if fixed bitrate is defined */
Packit Service 3880ab
	if (tb[IFLA_CAN_DATA_BITTIMING_CONST] &&
Packit Service 3880ab
	    !tb[IFLA_CAN_DATA_BITRATE_CONST]) {
Packit Service 3880ab
		struct can_bittiming_const *dbtc =
Packit Service 3880ab
			RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING_CONST]);
Packit Service 3880ab
Packit Service 3880ab
		if (is_json_context()) {
Packit Service 3880ab
			open_json_object("data_bittiming_const");
Packit Service 3880ab
			print_string(PRINT_JSON, "name", NULL, dbtc->name);
Packit Service 3880ab
			can_print_json_timing_min_max("tseg1",
Packit Service 3880ab
						      dbtc->tseg1_min,
Packit Service 3880ab
						      dbtc->tseg1_max);
Packit Service 3880ab
			can_print_json_timing_min_max("tseg2",
Packit Service 3880ab
						      dbtc->tseg2_min,
Packit Service 3880ab
						      dbtc->tseg2_max);
Packit Service 3880ab
			can_print_json_timing_min_max("sjw", 1, dbtc->sjw_max);
Packit Service 3880ab
			can_print_json_timing_min_max("brp",
Packit Service 3880ab
						      dbtc->brp_min,
Packit Service 3880ab
						      dbtc->brp_max);
Packit Service 3880ab
Packit Service 3880ab
			print_int(PRINT_JSON, "brp_inc", NULL, dbtc->brp_inc);
Packit Service 3880ab
			close_json_object();
Packit Service 3880ab
		} else {
Packit Service 3880ab
			fprintf(f, "\n	  %s: dtseg1 %d..%d dtseg2 %d..%d "
Packit Service 3880ab
				"dsjw 1..%d dbrp %d..%d dbrp-inc %d",
Packit Service 3880ab
				dbtc->name, dbtc->tseg1_min, dbtc->tseg1_max,
Packit Service 3880ab
				dbtc->tseg2_min, dbtc->tseg2_max, dbtc->sjw_max,
Packit Service 3880ab
				dbtc->brp_min, dbtc->brp_max, dbtc->brp_inc);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tb[IFLA_CAN_DATA_BITRATE_CONST]) {
Packit Service 3880ab
		__u32 *dbitrate_const =
Packit Service 3880ab
			RTA_DATA(tb[IFLA_CAN_DATA_BITRATE_CONST]);
Packit Service 3880ab
		int dbitrate_cnt =
Packit Service 3880ab
			RTA_PAYLOAD(tb[IFLA_CAN_DATA_BITRATE_CONST]) /
Packit Service 3880ab
			sizeof(*dbitrate_const);
Packit Service 3880ab
		int i;
Packit Service 3880ab
		__u32 dbitrate = 0;
Packit Service 3880ab
Packit Service 3880ab
		if (tb[IFLA_CAN_DATA_BITTIMING]) {
Packit Service 3880ab
			struct can_bittiming *dbt =
Packit Service 3880ab
				RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]);
Packit Service 3880ab
			dbitrate = dbt->bitrate;
Packit Service 3880ab
		}
Packit Service 3880ab
Packit Service 3880ab
		if (is_json_context()) {
Packit Service 3880ab
			print_uint(PRINT_JSON, "data_bittiming_bitrate",
Packit Service 3880ab
				   NULL, dbitrate);
Packit Service 3880ab
			open_json_array(PRINT_JSON, "data_bitrate_const");
Packit Service 3880ab
			for (i = 0; i < dbitrate_cnt; ++i)
Packit Service 3880ab
				print_uint(PRINT_JSON, NULL, NULL,
Packit Service 3880ab
					   dbitrate_const[i]);
Packit Service 3880ab
			close_json_array(PRINT_JSON, NULL);
Packit Service 3880ab
		} else {
Packit Service 3880ab
			fprintf(f, "\n	  dbitrate %u", dbitrate);
Packit Service 3880ab
			fprintf(f, "\n	     [");
Packit Service 3880ab
Packit Service 3880ab
			for (i = 0; i < dbitrate_cnt - 1; ++i) {
Packit Service 3880ab
				/* This will keep lines below 80 signs */
Packit Service 3880ab
				if (!(i % 6) && i)
Packit Service 3880ab
					fprintf(f, "\n	      ");
Packit Service 3880ab
Packit Service 3880ab
				fprintf(f, "%8u, ", dbitrate_const[i]);
Packit Service 3880ab
			}
Packit Service 3880ab
Packit Service 3880ab
			if (!(i % 6) && i)
Packit Service 3880ab
				fprintf(f, "\n	      ");
Packit Service 3880ab
			fprintf(f, "%8u ]", dbitrate_const[i]);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tb[IFLA_CAN_TERMINATION_CONST] && tb[IFLA_CAN_TERMINATION]) {
Packit Service 3880ab
		__u16 *trm = RTA_DATA(tb[IFLA_CAN_TERMINATION]);
Packit Service 3880ab
		__u16 *trm_const = RTA_DATA(tb[IFLA_CAN_TERMINATION_CONST]);
Packit Service 3880ab
		int trm_cnt = RTA_PAYLOAD(tb[IFLA_CAN_TERMINATION_CONST]) /
Packit Service 3880ab
			sizeof(*trm_const);
Packit Service 3880ab
		int i;
Packit Service 3880ab
Packit Service 3880ab
		if (is_json_context()) {
Packit Service 3880ab
			print_hu(PRINT_JSON, "termination", NULL, *trm);
Packit Service 3880ab
			open_json_array(PRINT_JSON, "termination_const");
Packit Service 3880ab
			for (i = 0; i < trm_cnt; ++i)
Packit Service 3880ab
				print_hu(PRINT_JSON, NULL, NULL, trm_const[i]);
Packit Service 3880ab
			close_json_array(PRINT_JSON, NULL);
Packit Service 3880ab
		} else {
Packit Service 3880ab
			fprintf(f, "\n	  termination %hu [ ", *trm);
Packit Service 3880ab
Packit Service 3880ab
			for (i = 0; i < trm_cnt - 1; ++i)
Packit Service 3880ab
				fprintf(f, "%hu, ", trm_const[i]);
Packit Service 3880ab
Packit Service 3880ab
			fprintf(f, "%hu ]", trm_const[i]);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tb[IFLA_CAN_CLOCK]) {
Packit Service 3880ab
		struct can_clock *clock = RTA_DATA(tb[IFLA_CAN_CLOCK]);
Packit Service 3880ab
Packit Service 3880ab
		print_int(PRINT_ANY,
Packit Service 3880ab
			  "clock",
Packit Service 3880ab
			  "\n	  clock %d ",
Packit Service 3880ab
			  clock->freq);
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static void can_print_xstats(struct link_util *lu,
Packit Service 3880ab
			     FILE *f, struct rtattr *xstats)
Packit Service 3880ab
{
Packit Service 3880ab
	struct can_device_stats *stats;
Packit Service 3880ab
Packit Service 3880ab
	if (xstats && RTA_PAYLOAD(xstats) == sizeof(*stats)) {
Packit Service 3880ab
		stats = RTA_DATA(xstats);
Packit Service 3880ab
Packit Service 3880ab
		if (is_json_context()) {
Packit Service 3880ab
			print_int(PRINT_JSON, "restarts",
Packit Service 3880ab
				  NULL, stats->restarts);
Packit Service 3880ab
			print_int(PRINT_JSON, "bus_error",
Packit Service 3880ab
				  NULL, stats->bus_error);
Packit Service 3880ab
			print_int(PRINT_JSON, "arbitration_lost",
Packit Service 3880ab
				  NULL, stats->arbitration_lost);
Packit Service 3880ab
			print_int(PRINT_JSON, "error_warning",
Packit Service 3880ab
				  NULL, stats->error_warning);
Packit Service 3880ab
			print_int(PRINT_JSON, "error_passive",
Packit Service 3880ab
				  NULL, stats->error_passive);
Packit Service 3880ab
			print_int(PRINT_JSON, "bus_off", NULL, stats->bus_off);
Packit Service 3880ab
		} else {
Packit Service 3880ab
			fprintf(f, "\n	  re-started bus-errors arbit-lost "
Packit Service 3880ab
				"error-warn error-pass bus-off");
Packit Service 3880ab
			fprintf(f, "\n	  %-10d %-10d %-10d %-10d %-10d %-10d",
Packit Service 3880ab
				stats->restarts, stats->bus_error,
Packit Service 3880ab
				stats->arbitration_lost, stats->error_warning,
Packit Service 3880ab
				stats->error_passive, stats->bus_off);
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static void can_print_help(struct link_util *lu, int argc, char **argv,
Packit Service 3880ab
			   FILE *f)
Packit Service 3880ab
{
Packit Service 3880ab
	print_usage(f);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
struct link_util can_link_util = {
Packit Service 3880ab
	.id		= "can",
Packit Service 3880ab
	.maxattr	= IFLA_CAN_MAX,
Packit Service 3880ab
	.parse_opt	= can_parse_opt,
Packit Service 3880ab
	.print_opt	= can_print_opt,
Packit Service 3880ab
	.print_xstats	= can_print_xstats,
Packit Service 3880ab
	.print_help	= can_print_help,
Packit Service 3880ab
};