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Update code to v1.0.14 (10)
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Caten
276
android/extern/wolfssl/IDE/iotsafe-raspberrypi/main.c
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276
android/extern/wolfssl/IDE/iotsafe-raspberrypi/main.c
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/* main.c
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*
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* Copyright (C) 2006-2022 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL 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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* wolfSSL 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/* IoT-SAFE example
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* main for POSIX serial communication.
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*/
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/* C Standard Library */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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/* POSIX Library */
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <termios.h>
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#include <signal.h>
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/* wolfSSL Library */
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#include <wolfssl/options.h>
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#include <wolfssl/wolfcrypt/settings.h>
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#include <wolfssl/ssl.h>
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#include <wolfssl/wolfcrypt/random.h>
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#include <wolfssl/wolfcrypt/port/iotsafe/iotsafe.h>
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/* Variable Declarations */
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static int serial_fd = -1;
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/* Function Declarations */
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extern int client_loop(const char *peer_ip, const char *peer_name,
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const char *peer_port, const char *temperature);
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#ifdef DEBUG_UART_IO
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static void print_buffer_hex(const char *buf, int len);
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static void print_buffer_char(const char *buf, int len);
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#endif
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static int usart_init(const char *dev_name, int *fd);
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static int usart_clean(int fd);
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static int usart_read(char *buf, int len);
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static int usart_write(const char *buf, int len);
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static void show_usage(const char *program);
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/* Function Definitions */
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#ifdef DEBUG_UART_IO
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static void print_buffer_hex(const char *buf, int len)
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{
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for (int i = 0; i < len; i++)
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printf("%02X", (unsigned int)*(buf++));
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}
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static void print_buffer_char(const char *buf, int len)
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{
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for (int i = 0; i < len; i++)
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printf("%c", *(buf++));
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}
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#endif
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static int usart_init(const char *dev_name, int *fd)
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{
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int portfd = open(dev_name, O_RDWR | O_NOCTTY);
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if (portfd < 0)
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{
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*fd = -1;
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return errno;
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}
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struct termios tty;
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tcgetattr(portfd, &tty);
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cfsetospeed(&tty, B115200);
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cfsetispeed(&tty, B115200);
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tty.c_cflag = (tty.c_cflag & ~CSIZE) | (CS8);
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tty.c_iflag &= ~(IGNBRK | IXON | IXOFF | IXANY| INLCR | ICRNL);
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tty.c_oflag &= ~OPOST;
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tty.c_oflag &= ~(ONLCR|OCRNL);
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tty.c_cflag &= ~(PARENB | PARODD | CSTOPB);
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tty.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
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tty.c_iflag &= ~ISTRIP;
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tty.c_cc[VMIN] = 0;
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tty.c_cc[VTIME] = 5;
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tcsetattr(portfd, TCSANOW, &tty);
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*fd = portfd;
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return 0;
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}
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static int usart_clean(int fd)
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{
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return close(fd);
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}
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static int usart_read(char *buf, int len)
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{
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if (!buf || len < 0)
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return -1;
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#ifdef DEBUG_UART_IO
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printf("UART Read Expected : %d bytes\n", len);
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#endif
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int ret = 0;
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int i = 0;
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char c;
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memset(buf, 0, len);
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/* Read 1 byte at one time until *buf is full or a POSIX read error like
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* timeout occurs. */
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do
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{
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ret = read(serial_fd, &c, 1U);
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if (ret > 0) {
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buf[i++] = c;
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if (c == '\n')
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break;
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}
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} while (i < len && ret > 0);
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#ifdef DEBUG_UART_IO
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printf("UART Read Actual : %d bytes\n", i);
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#ifdef DEBUG_UART_IO_EXTRA_VERBOSE
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printf("[READ in HEX ] <- ");
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print_buffer_hex(buf, i);
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printf("\n");
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#endif
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printf("[READ in CHAR] <- ");
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print_buffer_char(buf, i);
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printf("\n");
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#endif
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return i;
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}
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static int usart_write(const char *buf, int len)
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{
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if (!buf || len < 0)
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return -1;
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#ifdef DEBUG_UART_IO
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printf("UART Write Expected: %d bytes\n", len);
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#endif
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int sent = write(serial_fd, buf, len);
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if (sent < 0)
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sent = 0;
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#ifdef DEBUG_UART_IO
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printf("UART Write Actual : %d bytes\n", sent);
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#ifdef DEBUG_UART_IO_EXTRA_VERBOSE
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printf("[WRITE in HEX ] -> ");
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print_buffer_hex(buf, sent);
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printf("\n");
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#endif
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printf("[WRITE in CHAR] -> ");
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print_buffer_char(buf, sent);
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printf("\n");
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#endif
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return sent;
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}
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static void show_usage(const char *program)
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{
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printf("\nUsage:\n");
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printf("\t%s -ip SERVER_IP_ADDRESS -h SERVER_HOST_NAME -p PORT_NUMBER "
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"-t TEMPERATURE -d DEVICE_FILE_PATH\n", program);
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printf("\n");
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printf("\t-ip <server IPv4 address eg: 127.0.0.1>\n");
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printf("\t-h <server name eg: xxx.amazon.com>\n");
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printf("\t-p <server port eg: 443>\n");
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printf("\t-t <temperature eg: 25 Celsius>\n");
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printf("\t-d <serial device eg: /dev/ttyACM0>\n");
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exit(-1);
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}
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int main(int argc, char** argv)
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{
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char ip[30] = {0};
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char name[50] = {0};
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char port[8] = {0};
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char temperature[10] = {0};
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char device[30] = {0};
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if (argc == 11)
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{
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if (strcmp(argv[1], "-ip") == 0)
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strcpy((char*)&ip, argv[2]);
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else
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show_usage(argv[0]);
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if (strcmp(argv[3], "-h") == 0)
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strcpy((char*)&name, argv[4]);
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else
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show_usage(argv[0]);
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if (strcmp(argv[5], "-p") == 0)
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strcpy((char*)&port, argv[6]);
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else
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show_usage(argv[0]);
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if (strcmp(argv[7], "-t") == 0)
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strcpy((char*)&temperature, argv[8]);
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else
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show_usage(argv[0]);
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if (strcmp(argv[9], "-d") == 0)
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strcpy((char*)&device, argv[10]);
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else
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show_usage(argv[0]);
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}
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else
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{
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show_usage(argv[0]);
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}
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int ret = 0;
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printf("#####################\n");
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printf("wolfSSL IoT-SAFE Demo\n");
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printf("#####################\n");
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printf("---- Initializing serial I/O\n");
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printf("---- Opening serial I/O\n");
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printf("Serial device: %s\n", (const char*)&device);
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if ((ret = usart_init((const char*)&device, &serial_fd)) != 0)
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{
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printf("ERROR: Error opening %s: Error %i (%s)\n",
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(const char*)&device, ret, strerror(ret));
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exit(-1);
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}
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printf("---- Setting serial I/O read callback\n");
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wolfIoTSafe_SetCSIM_read_cb(&usart_read);
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printf("---- Setting serial I/O write callback\n");
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wolfIoTSafe_SetCSIM_write_cb(&usart_write);
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printf("---- Finish initializing serial I/O\n");
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client_loop(ip, name, port, temperature);
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printf("---- Cleaning serial I/O\n");
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printf("---- Closing serial I/O\n");
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if ((ret = usart_clean(serial_fd)) != 0)
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{
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printf("ERROR: Error closing %s: Error %i (%s)\n",
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(const char*)&device, ret, strerror(ret));
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exit(-1);
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}
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printf("---- Finish cleaning serial I/O\n");
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return 0;
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}
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