mirror of
https://github.com/eddyem/ARMsingleboard.git
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123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/*
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* This file is part of the schlagbaum project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@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 3 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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <usefull_macros.h>
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#include <string.h>
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#include "client.h"
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#include "cmdlnopts.h"
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#include "sslsock.h"
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#ifdef __arm__
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#include "gpio.h"
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// GPIO25 - LEDopen, 8 - LEDclose
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static cmd_t client_in_gpios[] = {
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{18, CMD_OPEN},
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{23, CMD_CLOSE},
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{24, CMD_SIREN},
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{0, NULL}
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};
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#endif
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// LEDs
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static cmd_t client_out_gpios[] = {
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{10, CMD_LED0},
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{9, CMD_PING},
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{11, CMD_LED1},
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{0, NULL}
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};
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static int SSL_nbread(SSL *ssl, char *buf, int bufsz){
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struct pollfd fds = {0};
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int fd = SSL_get_fd(ssl);
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fds.fd = fd;
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fds.events = POLLIN | POLLPRI;
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if(poll(&fds, 1, 1) < 0){ // wait no more than 1ms
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LOGWARN("SSL_nbread(): poll() failed");
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WARNX("poll()");
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return 0;
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}
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if(fds.revents & (POLLIN | POLLPRI)){
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//DBG("Got info in fd #%d", fd);
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int l = read_string(ssl, buf, bufsz);
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//DBG("read %d bytes", l);
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return l;
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}
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return 0;
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}
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static void readssl(SSL *ssl){
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char buf[BUFSIZ];
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int bytes = SSL_nbread(ssl, buf, BUFSIZ-1);
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//int bytes = read_string(ssl, buf, BUFSIZ-1);
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if(bytes > 0){
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buf[bytes] = 0;
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verbose(1, "Received: \"%s\"", buf);
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handle_message(buf, client_out_gpios);
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}else if(bytes < 0){
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LOGWARN("Server disconnected or other error");
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ERRX("Disconnected");
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}
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}
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static void sendcommands(SSL *ssl){
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char buf[BUFSIZ];
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char **curdata = G.commands;
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if(!curdata) return;
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while(*curdata){
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verbose(1, "Send: \"%s\"", *curdata);
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int l = snprintf(buf, BUFSIZ-1, "%s\n", *curdata);
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if(SSL_write(ssl, buf, l) <= 0) WARNX("SSL write error");
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readssl(ssl);
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++curdata;
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}
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double t0 = dtime();
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while(dtime() - t0 < 2.) readssl(ssl);
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}
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void clientproc(SSL_CTX *ctx, int fd){
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FNAME();
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SSL *ssl;
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ssl = SSL_new(ctx);
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SSL_set_fd(ssl, fd);
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int c = SSL_connect(ssl);
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if(c < 0){
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LOGERR("SSL_connect()");
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ERRX("SSL_connect() error: %d", SSL_get_error(ssl, c));
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}
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int enable = 1;
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if(ioctl(fd, FIONBIO, (void *)&enable) < 0){
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LOGERR("Can't make socket nonblocking");
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ERRX("ioctl()");
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}
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if(G.commands){
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sendcommands(ssl);
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SSL_shutdown(ssl);
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SSL_free(ssl);
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return;
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}
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while(1){
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#ifdef __arm__
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poll_gpio(&ssl, 1, client_in_gpios);
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#endif
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readssl(ssl);
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}
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SSL_free(ssl);
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}
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