277 lines
8.0 KiB
C
277 lines
8.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#include <string.h>
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#include "esp32_mock.h"
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#include "mdns.h"
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#include "mdns_private.h"
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//
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// Global stuctures containing packet payload, search
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mdns_rx_packet_t g_packet;
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struct pbuf mypbuf;
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mdns_search_once_t *search = NULL;
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//
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// Dependency injected test functions
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void mdns_test_execute_action(void *action);
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mdns_srv_item_t *mdns_test_mdns_get_service_item(const char *service, const char *proto);
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mdns_search_once_t *mdns_test_search_init(const char *name, const char *service, const char *proto, uint16_t type, uint32_t timeout, uint8_t max_results);
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esp_err_t mdns_test_send_search_action(mdns_action_type_t type, mdns_search_once_t *search);
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void mdns_test_search_free(mdns_search_once_t *search);
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void mdns_test_init_di(void);
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extern mdns_server_t *_mdns_server;
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//
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// mdns function wrappers for mdns setup in test mode
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static int mdns_test_hostname_set(const char *mdns_hostname)
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{
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for (int i = 0; i < MDNS_MAX_INTERFACES; i++) {
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_mdns_server->interfaces[i].pcbs[MDNS_IP_PROTOCOL_V4].state = PCB_RUNNING; // mark the PCB running to exercise mdns in fully operational mode
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_mdns_server->interfaces[i].pcbs[MDNS_IP_PROTOCOL_V6].state = PCB_RUNNING;
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}
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int ret = mdns_hostname_set(mdns_hostname);
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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return ret;
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}
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static int mdns_test_add_delegated_host(const char *mdns_hostname)
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{
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mdns_ip_addr_t addr = { .addr = { .u_addr = ESP_IPADDR_TYPE_V4 } };
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addr.addr.u_addr.ip4.addr = 0x11111111;
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int ret = mdns_delegate_hostname_add(mdns_hostname, &addr);
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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return ret;
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}
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static int mdns_test_service_instance_name_set(const char *service, const char *proto, const char *instance)
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{
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int ret = mdns_service_instance_name_set(service, proto, instance);
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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return ret;
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}
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static int mdns_test_service_txt_set(const char *service, const char *proto, uint8_t num_items, mdns_txt_item_t txt[])
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{
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int ret = mdns_service_txt_set(service, proto, txt, num_items);
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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return ret;
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}
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static int mdns_test_sub_service_add(const char *sub_name, const char *service_name, const char *proto, uint32_t port)
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{
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if (mdns_service_add(NULL, service_name, proto, port, NULL, 0)) {
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// This is expected failure as the service thread is not running
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}
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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if (mdns_test_mdns_get_service_item(service_name, proto) == NULL) {
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return ESP_FAIL;
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}
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int ret = mdns_service_subtype_add_for_host(NULL, service_name, proto, NULL, sub_name);
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a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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return ret;
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}
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static int mdns_test_service_add(const char *service_name, const char *proto, uint32_t port)
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{
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if (mdns_service_add(NULL, service_name, proto, port, NULL, 0)) {
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// This is expected failure as the service thread is not running
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}
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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if (mdns_test_mdns_get_service_item(service_name, proto) == NULL) {
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return ESP_FAIL;
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}
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return ESP_OK;
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}
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static mdns_result_t *mdns_test_query(const char *name, const char *service, const char *proto, uint16_t type)
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{
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search = mdns_test_search_init(name, service, proto, type, 3000, 20);
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if (!search) {
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abort();
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}
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if (mdns_test_send_search_action(ACTION_SEARCH_ADD, search)) {
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mdns_test_search_free(search);
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abort();
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}
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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return NULL;
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}
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static void mdns_test_query_free(void)
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{
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mdns_test_search_free(search);
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}
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//
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// function "under test" where afl-mangled packets passed
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//
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void mdns_parse_packet(mdns_rx_packet_t *packet);
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//
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// Test starts here
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//
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int main(int argc, char **argv)
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{
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int i;
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const char *mdns_hostname = "minifritz";
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const char *mdns_instance = "Hristo's Time Capsule";
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mdns_txt_item_t arduTxtData[4] = {
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{"board", "esp32"},
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{"tcp_check", "no"},
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{"ssh_upload", "no"},
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{"auth_upload", "no"}
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};
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const uint8_t mac[6] = {0xDE, 0xAD, 0xBE, 0xEF, 0x00, 0x32};
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uint8_t buf[1460];
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char winstance[21 + strlen(mdns_hostname)];
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sprintf(winstance, "%s [%02x:%02x:%02x:%02x:%02x:%02x]", mdns_hostname, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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// Init depencency injected methods
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mdns_test_init_di();
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if (mdns_init()) {
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abort();
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}
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if (mdns_test_hostname_set(mdns_hostname)) {
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abort();
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}
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if (mdns_test_add_delegated_host(mdns_hostname) || mdns_test_add_delegated_host("megafritz")) {
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abort();
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}
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#ifndef MDNS_NO_SERVICES
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if (mdns_test_sub_service_add("_server", "_fritz", "_tcp", 22)) {
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abort();
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}
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if (mdns_test_service_add("_telnet", "_tcp", 22)) {
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abort();
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}
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if (mdns_test_service_add("_workstation", "_tcp", 9)) {
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abort();
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}
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if (mdns_test_service_instance_name_set("_workstation", "_tcp", winstance)) {
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abort();
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}
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if (mdns_test_service_add("_arduino", "_tcp", 3232)) {
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abort();
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}
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if (mdns_test_service_txt_set("_arduino", "_tcp", 4, arduTxtData)) {
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abort();
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}
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if (mdns_test_service_add("_http", "_tcp", 80)) {
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abort();
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}
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if (mdns_test_service_instance_name_set("_http", "_tcp", "ESP WebServer")) {
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abort();
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}
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if (
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mdns_test_service_add("_afpovertcp", "_tcp", 548)
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|| mdns_test_service_add("_rfb", "_tcp", 885)
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|| mdns_test_service_add("_smb", "_tcp", 885)
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|| mdns_test_service_add("_adisk", "_tcp", 885)
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|| mdns_test_service_add("_airport", "_tcp", 885)
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|| mdns_test_service_add("_printer", "_tcp", 885)
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|| mdns_test_service_add("_airplay", "_tcp", 885)
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|| mdns_test_service_add("_raop", "_tcp", 885)
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|| mdns_test_service_add("_uscan", "_tcp", 885)
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|| mdns_test_service_add("_uscans", "_tcp", 885)
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|| mdns_test_service_add("_ippusb", "_tcp", 885)
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|| mdns_test_service_add("_scanner", "_tcp", 885)
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|| mdns_test_service_add("_ipp", "_tcp", 885)
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|| mdns_test_service_add("_ipps", "_tcp", 885)
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|| mdns_test_service_add("_pdl-datastream", "_tcp", 885)
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|| mdns_test_service_add("_ptp", "_tcp", 885)
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|| mdns_test_service_add("_sleep-proxy", "_udp", 885)) {
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abort();
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}
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#endif
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mdns_result_t *results = NULL;
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FILE *file;
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size_t nread;
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#ifdef INSTR_IS_OFF
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size_t len = 1460;
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memset(buf, 0, 1460);
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if (argc != 2) {
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printf("Non-instrumentation mode: please supply a file name created by AFL to reproduce crash\n");
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return 1;
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} else {
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//
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// Note: parameter1 is a file (mangled packet) which caused the crash
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file = fopen(argv[1], "r");
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assert(file >= 0 );
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len = fread(buf, 1, 1460, file);
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fclose(file);
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}
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for (i = 0; i < 1; i++) {
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#else
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while (__AFL_LOOP(1000)) {
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memset(buf, 0, 1460);
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size_t len = read(0, buf, 1460);
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#endif
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mypbuf.payload = malloc(len);
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memcpy(mypbuf.payload, buf, len);
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mypbuf.len = len;
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g_packet.pb = &mypbuf;
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mdns_test_query("minifritz", "_fritz", "_tcp", MDNS_TYPE_ANY);
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mdns_test_query(NULL, "_fritz", "_tcp", MDNS_TYPE_PTR);
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mdns_test_query(NULL, "_afpovertcp", "_tcp", MDNS_TYPE_PTR);
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mdns_parse_packet(&g_packet);
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free(mypbuf.payload);
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}
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#ifndef MDNS_NO_SERVICES
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mdns_service_remove_all();
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mdns_action_t *a = NULL;
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GetLastItem(&a);
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mdns_test_execute_action(a);
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#endif
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ForceTaskDelete();
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mdns_free();
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return 0;
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}
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