348 lines
9.4 KiB
C
Executable File
348 lines
9.4 KiB
C
Executable File
/*
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* asc2log.c - convert ASC logfile to compact CAN frame logfile
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*
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* Copyright (c) 2002-2007 Volkswagen Group Electronic Research
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Volkswagen nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* Alternatively, provided that this notice is retained in full, this
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* software may be distributed under the terms of the GNU General
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* Public License ("GPL") version 2, in which case the provisions of the
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* GPL apply INSTEAD OF those given above.
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*
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* The provided data structures and external interfaces from this code
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* are not restricted to be used by modules with a GPL compatible license.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* Send feedback to <linux-can@vger.kernel.org>
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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#define __USE_XOPEN /* supress warning for strptime */
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#include <time.h>
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#include <libgen.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <locale.h>
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#include <net/if.h>
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#include <linux/can.h>
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#include <linux/can/error.h>
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#include "lib.h"
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extern int optind, opterr, optopt;
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void print_usage(char *prg)
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{
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fprintf(stderr, "Usage: %s\n", prg);
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fprintf(stderr, "Options: -I <infile> (default stdin)\n");
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fprintf(stderr, " -O <outfile> (default stdout)\n");
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}
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void prframe(FILE *file, struct timeval *tv, int dev, struct can_frame *cf) {
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fprintf(file, "(%ld.%06ld) ", tv->tv_sec, tv->tv_usec);
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if (dev > 0)
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fprintf(file, "can%d ", dev-1);
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else
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fprintf(file, "canX ");
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/* no CAN FD support so far */
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fprint_canframe(file, (struct canfd_frame *)cf, "\n", 0, CAN_MAX_DLEN);
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}
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void get_can_id(struct can_frame *cf, char *idstring, int base) {
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if (idstring[strlen(idstring)-1] == 'x') {
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cf->can_id = CAN_EFF_FLAG;
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idstring[strlen(idstring)-1] = 0;
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} else
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cf->can_id = 0;
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cf->can_id |= strtoul(idstring, NULL, base);
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}
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void calc_tv(struct timeval *tv, struct timeval *read_tv,
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struct timeval *date_tv, char timestamps, int dplace) {
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if (dplace == 4) /* shift values having only 4 decimal places */
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read_tv->tv_usec *= 100; /* and need for 6 */
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if (dplace == 5) /* shift values having only 5 decimal places */
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read_tv->tv_usec *= 10; /* and need for 6 */
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if (timestamps == 'a') { /* absolute */
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tv->tv_sec = date_tv->tv_sec + read_tv->tv_sec;
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tv->tv_usec = date_tv->tv_usec + read_tv->tv_usec;
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} else { /* relative */
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if (((!tv->tv_sec) && (!tv->tv_usec)) &&
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(date_tv->tv_sec || date_tv->tv_usec)) {
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tv->tv_sec = date_tv->tv_sec; /* initial date/time */
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tv->tv_usec = date_tv->tv_usec;
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}
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tv->tv_sec += read_tv->tv_sec;
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tv->tv_usec += read_tv->tv_usec;
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}
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if (tv->tv_usec > 1000000) {
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tv->tv_usec -= 1000000;
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tv->tv_sec++;
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}
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}
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int get_date(struct timeval *tv, char *date) {
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char ctmp[10];
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int itmp;
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struct tm tms;
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if (sscanf(date, "%9s %d %9s %9s %d", ctmp, &itmp, ctmp, ctmp, &itmp) == 5) {
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/* assume EN/US date due to existing am/pm field */
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if (!setlocale(LC_TIME, "en_US")) {
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fprintf(stderr, "Setting locale to 'en_US' failed!\n");
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return 1;
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}
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if (!strptime(date, "%B %d %r %Y", &tms))
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return 1;
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} else {
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/* assume DE date due to non existing am/pm field */
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if (sscanf(date, "%9s %d %9s %d", ctmp, &itmp, ctmp, &itmp) != 4)
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return 1;
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if (!setlocale(LC_TIME, "de_DE")) {
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fprintf(stderr, "Setting locale to 'de_DE' failed!\n");
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return 1;
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}
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if (!strptime(date, "%B %d %T %Y", &tms))
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return 1;
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}
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//printf("h %d m %d s %d d %d m %d y %d\n",
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//tms.tm_hour, tms.tm_min, tms.tm_sec,
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//tms.tm_mday, tms.tm_mon+1, tms.tm_year+1900);
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tv->tv_sec = mktime(&tms);
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if (tv->tv_sec < 0)
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return 1;
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return 0;
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}
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int main(int argc, char **argv)
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{
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char buf[100], tmp1[100], tmp2[100];
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FILE *infile = stdin;
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FILE *outfile = stdout;
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static int verbose;
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struct can_frame cf;
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static struct timeval tv; /* current frame timestamp */
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static struct timeval read_tv; /* frame timestamp from ASC file */
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static struct timeval date_tv; /* date of the ASC file */
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static int dplace; /* decimal place 4, 5 or 6 or uninitialized */
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static char base; /* 'd'ec or 'h'ex */
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static char timestamps; /* 'a'bsolute or 'r'elative */
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int interface;
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char rtr;
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int dlc = 0;
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int data[8];
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int i, found, opt;
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while ((opt = getopt(argc, argv, "I:O:v?")) != -1) {
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switch (opt) {
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case 'I':
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infile = fopen(optarg, "r");
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if (!infile) {
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perror("infile");
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return 1;
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}
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break;
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case 'O':
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outfile = fopen(optarg, "w");
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if (!outfile) {
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perror("outfile");
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return 1;
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}
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break;
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case 'v':
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verbose = 1;
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break;
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case '?':
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print_usage(basename(argv[0]));
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return 0;
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break;
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default:
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fprintf(stderr, "Unknown option %c\n", opt);
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print_usage(basename(argv[0]));
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return 1;
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break;
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}
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}
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while (fgets(buf, 99, infile)) {
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if (!dplace) { /* the representation of a valid CAN frame not known */
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/* check for base and timestamp entries in the header */
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if ((!base) &&
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(sscanf(buf, "base %s timestamps %s", tmp1, tmp2) == 2)) {
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base = tmp1[0];
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timestamps = tmp2[0];
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if (verbose)
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printf("base %c timestamps %c\n", base, timestamps);
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if ((base != 'h') && (base != 'd')) {
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printf("invalid base %s (must be 'hex' or 'dez')!\n",
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tmp1);
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return 1;
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}
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if ((timestamps != 'a') && (timestamps != 'r')) {
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printf("invalid timestamps %s (must be 'absolute'"
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" or 'relative')!\n", tmp2);
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return 1;
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}
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continue;
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}
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/* check for the original logging date in the header */
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if ((!date_tv.tv_sec) &&
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(!strncmp(buf, "date", 4))) {
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if (get_date(&date_tv, &buf[9])) { /* skip 'date day ' */
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fprintf(stderr, "Not able to determine original log "
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"file date. Using current time.\n");
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/* use current date as default */
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gettimeofday(&date_tv, NULL);
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}
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if (verbose)
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printf("date %ld => %s", date_tv.tv_sec, ctime(&date_tv.tv_sec));
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continue;
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}
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/* check for decimal places length in valid CAN frames */
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if (sscanf(buf, "%ld.%s %d ", &tv.tv_sec, tmp2, &i) == 3){
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dplace = strlen(tmp2);
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if (verbose)
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printf("decimal place %d, e.g. '%s'\n", dplace, tmp2);
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if (dplace < 4 || dplace > 6) {
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printf("invalid dplace %d (must be 4, 5 or 6)!\n", dplace);
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return 1;
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}
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} else
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continue; /* dplace remains zero until first found CAN frame */
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}
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/* the representation of a valid CAN frame is known here */
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/* so try to get CAN frames and ErrorFrames and convert them */
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/* 0.002367 1 390x Rx d 8 17 00 14 00 C0 00 08 00 */
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found = 0; /* found valid CAN frame ? */
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if (base == 'h') { /* check for CAN frames with hexadecimal values */
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if (sscanf(buf, "%ld.%ld %d %s %*s %c %d %x %x %x %x %x %x %x %x",
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&read_tv.tv_sec, &read_tv.tv_usec, &interface,
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tmp1, &rtr, &dlc,
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&data[0], &data[1], &data[2], &data[3],
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&data[4], &data[5], &data[6], &data[7]
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) == dlc + 6 ) {
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found = 1;
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get_can_id(&cf, tmp1, 16);
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}
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} else { /* check for CAN frames with decimal values */
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if (sscanf(buf, "%ld.%ld %d %s %*s %c %d %d %d %d %d %d %d %d %d",
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&read_tv.tv_sec, &read_tv.tv_usec, &interface,
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tmp1, &rtr, &dlc,
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&data[0], &data[1], &data[2], &data[3],
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&data[4], &data[5], &data[6], &data[7]
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) == dlc + 6 ) {
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found = 1;
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get_can_id(&cf, tmp1, 10);
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}
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}
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if (found) {
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if (rtr == 'r')
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cf.can_id |= CAN_RTR_FLAG;
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cf.can_dlc = dlc & 0x0FU;
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for (i=0; i<dlc; i++)
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cf.data[i] = data[i] & 0xFFU;
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calc_tv(&tv, &read_tv, &date_tv, timestamps, dplace);
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prframe(outfile, &tv, interface, &cf);
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fflush(outfile);
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continue;
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}
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/* check for ErrorFrames */
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if (sscanf(buf, "%ld.%ld %d %s",
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&read_tv.tv_sec, &read_tv.tv_usec,
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&interface, tmp1) == 4) {
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if (!strncmp(tmp1, "ErrorFrame", strlen("ErrorFrame"))) {
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memset(&cf, 0, sizeof(cf));
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/* do not know more than 'Error' */
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cf.can_id = (CAN_ERR_FLAG | CAN_ERR_BUSERROR);
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cf.can_dlc = CAN_ERR_DLC;
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calc_tv(&tv, &read_tv, &date_tv, timestamps, dplace);
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prframe(outfile, &tv, interface, &cf);
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fflush(outfile);
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}
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}
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}
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fclose(outfile);
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return 0;
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}
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