mirror of
https://github.com/cesanta/mongoose.git
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113 lines
3.9 KiB
C
113 lines
3.9 KiB
C
// Copyright (c) 2026 Cesanta Software Limited
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// All rights reserved
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#include "mongoose.h"
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#include "hal.h"
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#ifndef UART_DEBUG
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#define UART_DEBUG LPUART1
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#endif
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#define LED1 PIN('3', 3) // On-board LED pin (D6, GPIO_AD_04, GPIO3.3)
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#define LED2 LED1
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#define LED3 LED1
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static void log_fn(char ch, void *param) {
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hal_uart_write_buf(param, &ch, 1);
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}
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static void blink_task(void) {
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static uint64_t blink_timer = 0;
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if (hal_timer_expired(&blink_timer, 500, hal_get_tick())) {
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hal_gpio_toggle(LED1);
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}
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}
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uint64_t mg_millis(void) {
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return hal_get_tick();
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}
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#if MG_ENABLE_CUSTOM_RANDOM
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bool mg_random(void *buf, size_t len) {
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for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
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uint32_t r = hal_rng_read();
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memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
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}
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return true;
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}
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#endif
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// Self-signed P-256 certificate and key for the HTTPS listener. Created by:
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// openssl ecparam -genkey -name prime256v1 -noout -out key.pem
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// openssl req -x509 -key key.pem -out cert.pem -days 3650 -subj /CN=mg
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#define TLS_CERT \
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"-----BEGIN CERTIFICATE-----\n" \
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"MIIBgjCCASegAwIBAgIUIJOq77Qn7lHbH6WseMemeqorR50wCgYIKoZIzj0EAwIw\n" \
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"FjEUMBIGA1UEAwwLbnVjbGVvLWg3MjMwHhcNMjYxMDEyMTUwMjE5WhcNMzYxMDA5\n" \
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"MTUwMjE5WjAWMRQwEgYDVQQDDAtudWNsZW8taDcyMzBZMBMGByqGSM49AgEGCCqG\n" \
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"SM49AwEHA0IABB6IQJNmzrsdQL+2BnZYS7GYOaj7sz8f6cjBmz3n8D9Em19XodlU\n" \
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"uy4ybIvyhr766lL0ERoTmMUivb/lGmzx9C+jUzBRMB0GA1UdDgQWBBQqxMuc4gj7\n" \
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"MTMzreWlRMNI3QMqTzAfBgNVHSMEGDAWgBQqxMuc4gj7MTMzreWlRMNI3QMqTzAP\n" \
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"BgNVHRMBAf8EBTADAQH/MAoGCCqGSM49BAMCA0kAMEYCIQDY4xaJpuxq6b3rHK3b\n" \
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"lOIQyfkQX+orCRqQUkseplqpqwIhAKswZFNn+2zUNRRNY8+cHmdIwmdpsmxtoWYP\n" \
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"BCjX++LI\n" \
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"-----END CERTIFICATE-----\n"
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#define TLS_KEY \
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"-----BEGIN EC PRIVATE KEY-----\n" \
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"MHcCAQEEIJ/GBl0TlD52q9PMg1KWaNIdXqp8b/HyIsABmBpqC+O1oAoGCCqGSM49\n" \
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"AwEHoUQDQgAEHohAk2bOux1Av7YGdlhLsZg5qPuzPx/pyMGbPefwP0SbX1eh2VS7\n" \
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"LjJsi/KGvvrqUvQRGhOYxSK9v+UabPH0Lw==\n" \
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"-----END EC PRIVATE KEY-----\n"
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static void http_ev_handler(struct mg_connection *c, int ev, void *ev_data) {
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if (ev == MG_EV_ACCEPT && c->is_tls) { // Accepted on the https:// listener
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struct mg_tls_opts opts = {.cert = mg_str(TLS_CERT),
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.key = mg_str(TLS_KEY)};
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mg_tls_init(c, &opts);
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} else if (ev == MG_EV_HTTP_MSG) { // New HTTP request received
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struct mg_http_message *hm = (struct mg_http_message *) ev_data;
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if (mg_match(hm->uri, mg_str("/api/tick"), NULL)) {
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mg_http_reply(c, 200, "", "{%m:%llu}\n", MG_ESC("tick"), hal_get_tick());
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} else if (mg_match(hm->uri, mg_str("/api/crash"), NULL)) {
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__asm volatile("udf #0"); // Trigger HardFault
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} else {
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mg_http_reply(c, 200, "",
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"Hi from Mongoose!\n"
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"tick: %llu\n"
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"ram used: %zu\n"
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"ram free: %zu\n",
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hal_get_tick(), hal_ram_used(), hal_ram_free());
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}
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}
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}
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int main(void) {
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hal_clock_init();
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hal_rng_init();
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hal_gpio_output(LED1);
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hal_gpio_output(LED2);
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hal_gpio_output(LED3);
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hal_uart_init(UART_DEBUG, 115200);
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mg_log_set_fn(log_fn, UART_DEBUG);
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hal_ethernet_init();
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// Start a minimal web server
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struct mg_mgr mgr;
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mg_mgr_init(&mgr);
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mg_http_listen(&mgr, "http://0.0.0.0", http_ev_handler, NULL);
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mg_http_listen(&mgr, "https://0.0.0.0", http_ev_handler, NULL);
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MG_INFO(("Initialised. CPU clock: %lu MHz", SystemCoreClock / 1000000));
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MG_INFO(("RAM used: %zu, free: %zu", hal_ram_used(), hal_ram_free()));
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MG_INFO(("Crash record: %M", mg_print_crash_record));
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for (;;) {
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mg_mgr_poll(&mgr, 0);
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blink_task();
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}
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return 0;
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}
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