142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/**
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* @file config.c
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* @note Copyright (C) 2011 Richard Cochran <richardcochran@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "config.h"
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#include "ether.h"
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static void scan_line(char *s, struct config *cfg)
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{
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double df;
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int i, val;
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Integer8 i8;
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UInteger16 u16;
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UInteger8 u8;
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unsigned char mac[MAC_LEN];
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struct defaultDS *dds = cfg->dds;
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struct port_defaults *pod = cfg->pod;
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if (1 == sscanf(s, " twoStepFlag %d", &val)) {
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if (val) /* TODO - implement one step */
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dds->twoStepFlag = val ? 1 : 0;
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} else if (1 == sscanf(s, " slaveOnly %d", &val)) {
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dds->slaveOnly = val ? 1 : 0;
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} else if (1 == sscanf(s, " priority1 %hhu", &u8)) {
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dds->priority1 = u8;
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} else if (1 == sscanf(s, " priority2 %hhu", &u8)) {
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dds->priority2 = u8;
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} else if (1 == sscanf(s, " domainNumber %hhu", &u8)) {
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if (u8 < 128)
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dds->domainNumber = u8;
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} else if (1 == sscanf(s, " clockClass %hhu", &u8)) {
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dds->clockQuality.clockClass = u8;
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} else if (1 == sscanf(s, " clockAccuracy %hhx", &u8)) {
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dds->clockQuality.clockAccuracy = u8;
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} else if (1 == sscanf(s, " offsetScaledLogVariance %hx", &u16)) {
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dds->clockQuality.offsetScaledLogVariance = u16;
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} else if (1 == sscanf(s, " logAnnounceInterval %hhd", &i8)) {
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pod->logAnnounceInterval = i8;
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} else if (1 == sscanf(s, " logSyncInterval %hhd", &i8)) {
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pod->logSyncInterval = i8;
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} else if (1 == sscanf(s, " logMinDelayReqInterval %hhd", &i8)) {
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pod->logMinDelayReqInterval = i8;
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} else if (1 == sscanf(s, " announceReceiptTimeout %hhu", &u8)) {
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pod->announceReceiptTimeout = u8;
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} else if (1 == sscanf(s, " transportSpecific %hhx", &u8)) {
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pod->transportSpecific = u8 << 4;
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} else if (1 == sscanf(s, " tx_timestamp_retries %u", &val)) {
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if (val > 0)
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*cfg->tx_timestamp_retries = val;
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} else if (1 == sscanf(s, " rx_timestamp_l2only %u", &val)) {
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*cfg->rx_timestamp_l2only = val ? 1 : 0;
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} else if (1 == sscanf(s, " pi_proportional_const %lf", &df)) {
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if (df > 0.0 && df < 1.0)
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*cfg->pi_proportional_const = df;
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} else if (1 == sscanf(s, " pi_integral_const %lf", &df)) {
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if (df > 0.0 && df < 1.0)
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*cfg->pi_integral_const = df;
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} else if (MAC_LEN == sscanf(s, " ptp_dst_mac %hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
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&mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5])) {
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for (i = 0; i < MAC_LEN; i++)
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cfg->ptp_dst_mac[i] = mac[i];
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} else if (MAC_LEN == sscanf(s, " p2p_dst_mac %hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
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&mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5])) {
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for (i = 0; i < MAC_LEN; i++)
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cfg->p2p_dst_mac[i] = mac[i];
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}
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}
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int config_read(char *name, struct config *cfg)
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{
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FILE *fp;
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char line[1024];
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fp = 0 == strncmp(name, "-", 2) ? stdin : fopen(name, "r");
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if (!fp) {
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perror("fopen");
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return -1;
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}
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while (fgets(line, sizeof(line), fp)) {
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scan_line(line, cfg);
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}
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fclose(fp);
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return 0;
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}
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