alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

MDNS-Fuzzer: AFL fuzzer tests for mdsn packet parser

Browse Source
This commit is contained in:
David Cermak 2018-05-04 16:42:54 +02:00 committed by David Cermak
parent b827e0e331
commit e983230be9
10 changed files with 833 additions and 391 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
components/mdns/include/mdns.h
View File

@ -18,12 +18,8 @@
extern "C" {
#endif
#ifndef MDNS_TEST_MODE
#include <tcpip_adapter.h>
#include "esp_event.h"
#else
#include "esp32_compat.h"
#endif
#define MDNS_TYPE_A 0x0001
#define MDNS_TYPE_PTR 0x000C

318
components/mdns/mdns.c
View File

@ -11,25 +11,11 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "mdns.h"
#include <string.h>
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include "freertos/semphr.h"
#include "lwip/ip_addr.h"
#include "lwip/pbuf.h"
#include "lwip/igmp.h"
#include "lwip/udp.h"
#include "lwip/mld6.h"
#include "lwip/priv/tcpip_priv.h"
#include "esp_wifi.h"
#include "esp_system.h"
#include "esp_timer.h"
#include "esp_event_loop.h"
#include "mdns_private.h"
#include "mdns_networking.h"
#include <string.h>
#ifdef MDNS_ENABLE_DEBUG
void mdns_debug_packet(const uint8_t * data, size_t len);
@ -38,7 +24,7 @@ void mdns_debug_packet(const uint8_t * data, size_t len);
static const char * MDNS_DEFAULT_DOMAIN = "local";
static const char * MDNS_SUB_STR = "_sub";
static mdns_server_t * _mdns_server = NULL;
mdns_server_t * _mdns_server = NULL;
static volatile TaskHandle_t _mdns_service_task_handle = NULL;
static SemaphoreHandle_t _mdns_service_semaphore = NULL;
@ -110,14 +96,7 @@ static mdns_srv_item_t * _mdns_get_service_item(const char * service, const char
return NULL;
}
/*
* MDNS Server Networking
* */
/**
* @brief Queue RX packet action
*/
static esp_err_t _mdns_send_rx_action(mdns_rx_packet_t * packet)
esp_err_t _mdns_send_rx_action(mdns_rx_packet_t * packet)
{
mdns_action_t * action = NULL;
@ -135,286 +114,6 @@ static esp_err_t _mdns_send_rx_action(mdns_rx_packet_t * packet)
return ESP_OK;
}
/**
* @brief the receive callback of the raw udp api. Packets are received here
*
*/
static void _udp_recv(void *arg, struct udp_pcb *upcb, struct pbuf *pb, const ip_addr_t *raddr, uint16_t rport)
{
uint8_t i;
while (pb != NULL) {
struct pbuf * this_pb = pb;
pb = pb->next;
this_pb->next = NULL;
mdns_rx_packet_t * packet = (mdns_rx_packet_t *)malloc(sizeof(mdns_rx_packet_t));
if (!packet) {
//missed packet - no memory
pbuf_free(this_pb);
continue;
}
packet->tcpip_if = TCPIP_ADAPTER_IF_MAX;
packet->pb = this_pb;
packet->src_port = rport;
memcpy(&packet->src, raddr, sizeof(ip_addr_t));
packet->dest.type = packet->src.type;
if (packet->src.type == IPADDR_TYPE_V4) {
packet->ip_protocol = MDNS_IP_PROTOCOL_V4;
struct ip_hdr * iphdr = (struct ip_hdr *)(((uint8_t *)(packet->pb->payload)) - UDP_HLEN - IP_HLEN);
packet->dest.u_addr.ip4.addr = iphdr->dest.addr;
} else {
packet->ip_protocol = MDNS_IP_PROTOCOL_V6;
struct ip6_hdr * ip6hdr = (struct ip6_hdr *)(((uint8_t *)(packet->pb->payload)) - UDP_HLEN - IP6_HLEN);
memcpy(&packet->dest.u_addr.ip6.addr, (uint8_t *)ip6hdr->dest.addr, 16);
}
packet->multicast = ip_addr_ismulticast(&(packet->dest));
//lwip does not return the proper pcb if you have more than one for the same multicast address (but different interfaces)
struct netif * netif = NULL;
void * nif = NULL;
struct udp_pcb * pcb = NULL;
for (i=0; i<TCPIP_ADAPTER_IF_MAX; i++) {
pcb = _mdns_server->interfaces[i].pcbs[packet->ip_protocol].pcb;
tcpip_adapter_get_netif (i, &nif);
netif = (struct netif *)nif;
if (pcb && netif && netif == ip_current_input_netif ()) {
if (packet->src.type == IPADDR_TYPE_V4) {
if ((packet->src.u_addr.ip4.addr & netif->netmask.u_addr.ip4.addr) != (netif->ip_addr.u_addr.ip4.addr & netif->netmask.u_addr.ip4.addr)) {
//packet source is not in the same subnet
pcb = NULL;
break;
}
}
packet->tcpip_if = i;
break;
}
pcb = NULL;
}
if (!pcb || !_mdns_server || !_mdns_server->action_queue
|| _mdns_send_rx_action(packet) != ESP_OK) {
pbuf_free(this_pb);
free(packet);
}
}
}
/**
* @brief Stop PCB Main code
*/
static void _udp_pcb_deinit(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
if (!_mdns_server) {
return;
}
mdns_pcb_t * _pcb = &_mdns_server->interfaces[tcpip_if].pcbs[ip_protocol];
if (_pcb->pcb) {
_pcb->state = PCB_OFF;
udp_recv(_pcb->pcb, NULL, NULL);
udp_disconnect(_pcb->pcb);
udp_remove(_pcb->pcb);
free(_pcb->probe_services);
_pcb->pcb = NULL;
_pcb->probe_ip = false;
_pcb->probe_services = NULL;
_pcb->probe_services_len = 0;
_pcb->probe_running = false;
_pcb->failed_probes = 0;
}
}
/**
* @brief Start PCB V4
*/
static esp_err_t _udp_pcb_v4_init(tcpip_adapter_if_t tcpip_if)
{
tcpip_adapter_ip_info_t if_ip_info;
if (!_mdns_server || _mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V4].pcb) {
return ESP_ERR_INVALID_STATE;
}
if (tcpip_adapter_get_ip_info(tcpip_if, &if_ip_info) || if_ip_info.ip.addr == 0) {
return ESP_ERR_INVALID_ARG;
}
ip_addr_t interface_addr = IPADDR4_INIT(if_ip_info.ip.addr);
ip_addr_t multicast_addr;
IP_ADDR4(&multicast_addr, 224, 0, 0, 251);
if (igmp_joingroup((const struct ip4_addr *)&interface_addr.u_addr.ip4, (const struct ip4_addr *)&multicast_addr.u_addr.ip4)) {
return ESP_ERR_INVALID_STATE;
}
struct udp_pcb * pcb = udp_new_ip_type(IPADDR_TYPE_V4);
if (!pcb) {
return ESP_ERR_NO_MEM;
}
if (udp_bind(pcb, &interface_addr, MDNS_SERVICE_PORT) != 0) {
udp_remove(pcb);
return ESP_ERR_INVALID_STATE;
}
pcb->mcast_ttl = 1;
pcb->remote_port = MDNS_SERVICE_PORT;
ip_addr_copy(pcb->multicast_ip, interface_addr);
ip_addr_copy(pcb->remote_ip, multicast_addr);
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V4].pcb = pcb;
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V4].failed_probes = 0;
udp_recv(pcb, &_udp_recv, _mdns_server);
return ESP_OK;
}
/**
* @brief Start PCB V6
*/
static esp_err_t _udp_pcb_v6_init(tcpip_adapter_if_t tcpip_if)
{
ip_addr_t multicast_addr = IPADDR6_INIT(0x000002ff, 0, 0, 0xfb000000);
ip_addr_t interface_addr;
interface_addr.type = IPADDR_TYPE_V6;
if (!_mdns_server || _mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V6].pcb) {
return ESP_ERR_INVALID_STATE;
}
if (tcpip_adapter_get_ip6_linklocal(tcpip_if, &interface_addr.u_addr.ip6)) {
return ESP_ERR_INVALID_ARG;
}
if (mld6_joingroup(&(interface_addr.u_addr.ip6), &(multicast_addr.u_addr.ip6))) {
return ESP_ERR_INVALID_STATE;
}
struct udp_pcb * pcb = udp_new_ip_type(IPADDR_TYPE_V6);
if (!pcb) {
return ESP_ERR_NO_MEM;
}
if (udp_bind(pcb, &interface_addr, MDNS_SERVICE_PORT) != 0) {
udp_remove(pcb);
return ESP_ERR_INVALID_STATE;
}
pcb->remote_port = MDNS_SERVICE_PORT;
ip_addr_copy(pcb->remote_ip, multicast_addr);
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V6].pcb = pcb;
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V6].failed_probes = 0;
udp_recv(pcb, &_udp_recv, _mdns_server);
return ESP_OK;
}
/**
* @brief Start PCB Main code
*/
static esp_err_t _udp_pcb_init(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
if (ip_protocol == MDNS_IP_PROTOCOL_V4) {
return _udp_pcb_v4_init(tcpip_if);
} else if (ip_protocol == MDNS_IP_PROTOCOL_V6) {
return _udp_pcb_v6_init(tcpip_if);
}
return ESP_ERR_INVALID_ARG;
}
typedef struct {
struct tcpip_api_call call;
tcpip_adapter_if_t tcpip_if;
mdns_ip_protocol_t ip_protocol;
esp_err_t err;
} mdns_api_call_t;
/**
* @brief Start PCB from LwIP thread
*/
static err_t _mdns_pcb_init_api(struct tcpip_api_call *api_call_msg)
{
mdns_api_call_t * msg = (mdns_api_call_t *)api_call_msg;
msg->err = _udp_pcb_init(msg->tcpip_if, msg->ip_protocol);
return msg->err;
}
/**
* @brief Start PCB
*/
static esp_err_t _mdns_pcb_init(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
mdns_api_call_t msg = {
.tcpip_if = tcpip_if,
.ip_protocol = ip_protocol
};
tcpip_api_call(_mdns_pcb_init_api, (struct tcpip_api_call*)&msg);
return msg.err;
}
/**
* @brief Stop PCB from LwIP thread
*/
static err_t _mdns_pcb_deinit_api(struct tcpip_api_call *api_call_msg)
{
mdns_api_call_t * msg = (mdns_api_call_t *)api_call_msg;
_udp_pcb_deinit(msg->tcpip_if, msg->ip_protocol);
msg->err = ESP_OK;
return ESP_OK;
}
/**
* @brief Stop PCB
*/
static esp_err_t _mdns_pcb_deinit(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
mdns_api_call_t msg = {
.tcpip_if = tcpip_if,
.ip_protocol = ip_protocol
};
tcpip_api_call(_mdns_pcb_deinit_api, (struct tcpip_api_call*)&msg);
return msg.err;
}
/**
* @brief send packet over UDP
*
* @param server The server
* @param data byte array containing the packet data
* @param len length of the packet data
*
* @return length of sent packet or 0 on error
*/
static size_t _udp_pcb_write(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol, const ip_addr_t *ip, uint16_t port, uint8_t * data, size_t len)
{
#ifndef MDNS_TEST_MODE
struct netif * netif = NULL;
void * nif = NULL;
esp_err_t err = tcpip_adapter_get_netif(tcpip_if, &nif);
netif = (struct netif *)nif;
if (err) {
return 0;
}
struct pbuf* pbt = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM);
if (pbt == NULL) {
return 0;
}
memcpy((uint8_t *)pbt->payload, data, len);
err = udp_sendto_if (_mdns_server->interfaces[tcpip_if].pcbs[ip_protocol].pcb, pbt, ip, port, netif);
pbuf_free(pbt);
if (err) {
return 0;
}
#endif
return len;
}
/**
* @brief Get the service name of a service
*/
@ -1235,7 +934,7 @@ static void _mdns_dispatch_tx_packet(mdns_tx_packet_t * p)
mdns_debug_packet(packet, index);
#endif
_udp_pcb_write(p->tcpip_if, p->ip_protocol, &p->dst, p->port, packet, index);
_mdns_udp_pcb_write(p->tcpip_if, p->ip_protocol, &p->dst, p->port, packet, index);
}
/**
@ -4192,7 +3891,6 @@ static esp_err_t _mdns_stop_timer(){
*/
static esp_err_t _mdns_service_task_start()
{
#ifndef MDNS_TEST_MODE
if (!_mdns_service_semaphore) {
_mdns_service_semaphore = xSemaphoreCreateMutex();
if (!_mdns_service_semaphore) {
@ -4212,8 +3910,6 @@ static esp_err_t _mdns_service_task_start()
}
}
MDNS_SERVICE_UNLOCK();
#endif
return ESP_OK;
}
@ -4225,7 +3921,6 @@ static esp_err_t _mdns_service_task_start()
*/
static esp_err_t _mdns_service_task_stop()
{
#ifndef MDNS_TEST_MODE
MDNS_SERVICE_LOCK();
_mdns_stop_timer();
if (_mdns_service_task_handle) {
@ -4241,7 +3936,6 @@ static esp_err_t _mdns_service_task_stop()
}
}
MDNS_SERVICE_UNLOCK();
#endif
return ESP_OK;
}

284
components/mdns/mdns_networking.c Normal file
View File

@ -0,0 +1,284 @@
/*
* MDNS Server Networking
*
*/
#include <string.h>
#include "mdns_networking.h"
extern mdns_server_t * _mdns_server;
/*
* MDNS Server Networking
*
*/
/**
* @brief the receive callback of the raw udp api. Packets are received here
*
*/
static void _udp_recv(void *arg, struct udp_pcb *upcb, struct pbuf *pb, const ip_addr_t *raddr, uint16_t rport)
{
uint8_t i;
while (pb != NULL) {
struct pbuf * this_pb = pb;
pb = pb->next;
this_pb->next = NULL;
mdns_rx_packet_t * packet = (mdns_rx_packet_t *)malloc(sizeof(mdns_rx_packet_t));
if (!packet) {
//missed packet - no memory
pbuf_free(this_pb);
continue;
}
packet->tcpip_if = TCPIP_ADAPTER_IF_MAX;
packet->pb = this_pb;
packet->src_port = rport;
memcpy(&packet->src, raddr, sizeof(ip_addr_t));
packet->dest.type = packet->src.type;
if (packet->src.type == IPADDR_TYPE_V4) {
packet->ip_protocol = MDNS_IP_PROTOCOL_V4;
struct ip_hdr * iphdr = (struct ip_hdr *)(((uint8_t *)(packet->pb->payload)) - UDP_HLEN - IP_HLEN);
packet->dest.u_addr.ip4.addr = iphdr->dest.addr;
} else {
packet->ip_protocol = MDNS_IP_PROTOCOL_V6;
struct ip6_hdr * ip6hdr = (struct ip6_hdr *)(((uint8_t *)(packet->pb->payload)) - UDP_HLEN - IP6_HLEN);
memcpy(&packet->dest.u_addr.ip6.addr, (uint8_t *)ip6hdr->dest.addr, 16);
}
packet->multicast = ip_addr_ismulticast(&(packet->dest));
//lwip does not return the proper pcb if you have more than one for the same multicast address (but different interfaces)
struct netif * netif = NULL;
void * nif = NULL;
struct udp_pcb * pcb = NULL;
for (i=0; i<TCPIP_ADAPTER_IF_MAX; i++) {
pcb = _mdns_server->interfaces[i].pcbs[packet->ip_protocol].pcb;
tcpip_adapter_get_netif (i, &nif);
netif = (struct netif *)nif;
if (pcb && netif && netif == ip_current_input_netif ()) {
if (packet->src.type == IPADDR_TYPE_V4) {
if ((packet->src.u_addr.ip4.addr & netif->netmask.u_addr.ip4.addr) != (netif->ip_addr.u_addr.ip4.addr & netif->netmask.u_addr.ip4.addr)) {
//packet source is not in the same subnet
pcb = NULL;
break;
}
}
packet->tcpip_if = i;
break;
}
pcb = NULL;
}
if (!pcb || !_mdns_server || !_mdns_server->action_queue
|| _mdns_send_rx_action(packet) != ESP_OK) {
pbuf_free(this_pb);
free(packet);
}
}
}
/**
* @brief Stop PCB Main code
*/
static void _udp_pcb_deinit(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
if (!_mdns_server) {
return;
}
mdns_pcb_t * _pcb = &_mdns_server->interfaces[tcpip_if].pcbs[ip_protocol];
if (_pcb->pcb) {
_pcb->state = PCB_OFF;
udp_recv(_pcb->pcb, NULL, NULL);
udp_disconnect(_pcb->pcb);
udp_remove(_pcb->pcb);
free(_pcb->probe_services);
_pcb->pcb = NULL;
_pcb->probe_ip = false;
_pcb->probe_services = NULL;
_pcb->probe_services_len = 0;
_pcb->probe_running = false;
_pcb->failed_probes = 0;
}
}
/**
* @brief Start PCB V4
*/
static esp_err_t _udp_pcb_v4_init(tcpip_adapter_if_t tcpip_if)
{
tcpip_adapter_ip_info_t if_ip_info;
if (!_mdns_server || _mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V4].pcb) {
return ESP_ERR_INVALID_STATE;
}
if (tcpip_adapter_get_ip_info(tcpip_if, &if_ip_info) || if_ip_info.ip.addr == 0) {
return ESP_ERR_INVALID_ARG;
}
ip_addr_t interface_addr = IPADDR4_INIT(if_ip_info.ip.addr);
ip_addr_t multicast_addr;
IP_ADDR4(&multicast_addr, 224, 0, 0, 251);
if (igmp_joingroup((const struct ip4_addr *)&interface_addr.u_addr.ip4, (const struct ip4_addr *)&multicast_addr.u_addr.ip4)) {
return ESP_ERR_INVALID_STATE;
}
struct udp_pcb * pcb = udp_new_ip_type(IPADDR_TYPE_V4);
if (!pcb) {
return ESP_ERR_NO_MEM;
}
if (udp_bind(pcb, &interface_addr, MDNS_SERVICE_PORT) != 0) {
udp_remove(pcb);
return ESP_ERR_INVALID_STATE;
}
pcb->mcast_ttl = 1;
pcb->remote_port = MDNS_SERVICE_PORT;
ip_addr_copy(pcb->multicast_ip, interface_addr);
ip_addr_copy(pcb->remote_ip, multicast_addr);
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V4].pcb = pcb;
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V4].failed_probes = 0;
udp_recv(pcb, &_udp_recv, _mdns_server);
return ESP_OK;
}
/**
* @brief Start PCB V6
*/
static esp_err_t _udp_pcb_v6_init(tcpip_adapter_if_t tcpip_if)
{
ip_addr_t multicast_addr = IPADDR6_INIT(0x000002ff, 0, 0, 0xfb000000);
ip_addr_t interface_addr;
interface_addr.type = IPADDR_TYPE_V6;
if (!_mdns_server || _mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V6].pcb) {
return ESP_ERR_INVALID_STATE;
}
if (tcpip_adapter_get_ip6_linklocal(tcpip_if, &interface_addr.u_addr.ip6)) {
return ESP_ERR_INVALID_ARG;
}
if (mld6_joingroup(&(interface_addr.u_addr.ip6), &(multicast_addr.u_addr.ip6))) {
return ESP_ERR_INVALID_STATE;
}
struct udp_pcb * pcb = udp_new_ip_type(IPADDR_TYPE_V6);
if (!pcb) {
return ESP_ERR_NO_MEM;
}
if (udp_bind(pcb, &interface_addr, MDNS_SERVICE_PORT) != 0) {
udp_remove(pcb);
return ESP_ERR_INVALID_STATE;
}
pcb->remote_port = MDNS_SERVICE_PORT;
ip_addr_copy(pcb->remote_ip, multicast_addr);
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V6].pcb = pcb;
_mdns_server->interfaces[tcpip_if].pcbs[MDNS_IP_PROTOCOL_V6].failed_probes = 0;
udp_recv(pcb, &_udp_recv, _mdns_server);
return ESP_OK;
}
/**
* @brief Start PCB Main code
*/
static esp_err_t _udp_pcb_init(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
if (ip_protocol == MDNS_IP_PROTOCOL_V4) {
return _udp_pcb_v4_init(tcpip_if);
} else if (ip_protocol == MDNS_IP_PROTOCOL_V6) {
return _udp_pcb_v6_init(tcpip_if);
}
return ESP_ERR_INVALID_ARG;
}
typedef struct {
struct tcpip_api_call call;
tcpip_adapter_if_t tcpip_if;
mdns_ip_protocol_t ip_protocol;
esp_err_t err;
} mdns_api_call_t;
/**
* @brief Start PCB from LwIP thread
*/
static err_t _mdns_pcb_init_api(struct tcpip_api_call *api_call_msg)
{
mdns_api_call_t * msg = (mdns_api_call_t *)api_call_msg;
msg->err = _udp_pcb_init(msg->tcpip_if, msg->ip_protocol);
return msg->err;
}
/**
* @brief Stop PCB from LwIP thread
*/
static err_t _mdns_pcb_deinit_api(struct tcpip_api_call *api_call_msg)
{
mdns_api_call_t * msg = (mdns_api_call_t *)api_call_msg;
_udp_pcb_deinit(msg->tcpip_if, msg->ip_protocol);
msg->err = ESP_OK;
return ESP_OK;
}
/*
* Non-static functions below are
* - _mdns prefixed
* - commented in mdns_networking.h header
*/
esp_err_t _mdns_pcb_init(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
mdns_api_call_t msg = {
.tcpip_if = tcpip_if,
.ip_protocol = ip_protocol
};
tcpip_api_call(_mdns_pcb_init_api, (struct tcpip_api_call*)&msg);
return msg.err;
}
esp_err_t _mdns_pcb_deinit(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{
mdns_api_call_t msg = {
.tcpip_if = tcpip_if,
.ip_protocol = ip_protocol
};
tcpip_api_call(_mdns_pcb_deinit_api, (struct tcpip_api_call*)&msg);
return msg.err;
}
size_t _mdns_udp_pcb_write(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol, const ip_addr_t *ip, uint16_t port, uint8_t * data, size_t len)
{
struct netif * netif = NULL;
void * nif = NULL;
esp_err_t err = tcpip_adapter_get_netif(tcpip_if, &nif);
netif = (struct netif *)nif;
if (err) {
return 0;
}
struct pbuf* pbt = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM);
if (pbt == NULL) {
return 0;
}
memcpy((uint8_t *)pbt->payload, data, len);
err = udp_sendto_if (_mdns_server->interfaces[tcpip_if].pcbs[ip_protocol].pcb, pbt, ip, port, netif);
pbuf_free(pbt);
if (err) {
return 0;
}
return len;
}

52
components/mdns/private_include/mdns_networking.h Normal file
View File

@ -0,0 +1,52 @@
#ifndef ESP_MDNS_NETWORKING_H_
#define ESP_MDNS_NETWORKING_H_
/*
* MDNS Server Networking -- private include
*
*/
#include "mdns.h"
#include "mdns_private.h"
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include "freertos/semphr.h"
#include "lwip/ip_addr.h"
#include "lwip/pbuf.h"
#include "lwip/igmp.h"
#include "lwip/udp.h"
#include "lwip/mld6.h"
#include "lwip/priv/tcpip_priv.h"
#include "esp_wifi.h"
#include "esp_system.h"
#include "esp_timer.h"
#include "esp_event_loop.h"
/**
* @brief Queue RX packet action
*/
esp_err_t _mdns_send_rx_action(mdns_rx_packet_t * packet);
/**
* @brief Start PCB
*/
esp_err_t _mdns_pcb_init(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol);
/**
* @brief Stop PCB
*/
esp_err_t _mdns_pcb_deinit(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol);
/**
* @brief send packet over UDP
*
* @param server The server
* @param data byte array containing the packet data
* @param len length of the packet data
*
* @return length of sent packet or 0 on error
*/
size_t _mdns_udp_pcb_write(tcpip_adapter_if_t tcpip_if, mdns_ip_protocol_t ip_protocol, const ip_addr_t *ip, uint16_t port, uint8_t * data, size_t len);
#endif /* ESP_MDNS_NETWORKING_H_ */

22
components/mdns/test_afl_fuzz_host/Makefile
View File

@ -1,17 +1,25 @@
TEST_NAME=test
FUZZ=afl-fuzz
CC=afl-clang-fast
COMPONENTS_DIR=../..
CFLAGS=-g -DMDNS_TEST_MODE -I. -I.. -I../include -I../private_include -I$(COMPONENTS_DIR)/tcpip_adapter/include -I$(COMPONENTS_DIR)/esp32/include -include esp32_compat.h
MDNS_C_DEPENDENCY_INJECTION=-include mdns_di.h
ifeq ($(INSTR),off)
CC=gcc
CFLAGS+=-DINSTR_IS_OFF
TEST_NAME=test_sim
else
CC=afl-clang-fast
endif
CPP=$(CC)
LD=$(CC)
OBJECTS=mdns.o test.o
CFLAGS=-DMDNS_TEST_MODE -I. -I../include
OBJECTS=mdns.o esp32_mock.o test.o
OS := $(shell uname)
ifeq ($(OS),Darwin)
LDLIBS=
else
LDLIBS=-lbsd
CFLAGS+=-DUSE_BSD_STRING
LDLIBS=-lbsd
CFLAGS+=-DUSE_BSD_STRING
endif
all: $(TEST_NAME)
@ -22,11 +30,11 @@ all: $(TEST_NAME)
mdns.o: ../mdns.c
@echo "[CC] $<"
@$(CC) $(CFLAGS) -c $< -o $@
@$(CC) $(CFLAGS) $(MDNS_C_DEPENDENCY_INJECTION) -c $< -o $@
$(TEST_NAME): $(OBJECTS)
@echo "[LD] $@"
@$(LD) $(LDLIBS) $(OBJECTS) -o $@
@$(LD) $(OBJECTS) -o $@ $(LDLIBS)
fuzz: $(TEST_NAME)
@$(FUZZ) -i "in" -o "out" -- ./$(TEST_NAME)

153
components/mdns/test_afl_fuzz_host/esp32_compat.h
View File

@ -17,6 +17,12 @@
#ifdef MDNS_TEST_MODE
// Not to include
#define ESP_MDNS_NETWORKING_H_
#define _TCPIP_ADAPTER_H_
#define __ESP_EVENT_H__
#ifdef USE_BSD_STRING
#include <bsd/string.h>
#endif
@ -28,6 +34,7 @@
#include <signal.h>
#include <sys/time.h>
#define ERR_OK 0
#define ESP_OK 0
#define ESP_FAIL -1
@ -44,21 +51,26 @@
#define pdTRUE true
#define pdFALSE false
#define pdPASS ( pdTRUE )
#define pdFAIL ( pdFALSE )
#define portMAX_DELAY 0xFFFFFFFF
#define portTICK_PERIOD_MS 1
#define xSemaphoreTake(s,d)
#define xTaskDelete(a)
#define vTaskDelete(a) free(a)
#define xSemaphoreGive(s)
#define _mdns_pcb_init(a,b) true
#define _mdns_pcb_deinit(a,b) true
#define xSemaphoreCreateMutex() malloc(1)
#define vSemaphoreDelete(s) free(s)
#define xQueueCreate(n,s) malloc((n)*(s))
#define vQueueDelete(q) free(q)
#define xQueueReceive(q, d, t) (ESP_OK)
#define vTaskDelay(m) usleep((m)*1000)
#define xTaskCreatePinnedToCore(a,b,c,d,e,f,g) *(f) = malloc(1)
#define vTaskDelay(m) usleep((m)*0)
#define pbuf_free(p) free(p)
#define tcpip_adapter_get_ip_info(i,d)
#define esp_random() (rand()%UINT32_MAX)
#define tcpip_adapter_get_ip_info(i,d) true
#define tcpip_adapter_dhcpc_get_status(a, b) TCPIP_ADAPTER_DHCP_STARTED
#define tcpip_adapter_get_ip6_linklocal(i,d) (ESP_OK)
#define tcpip_adapter_get_hostname(i, n) *(n) = "esp32-0123456789AB"
@ -67,17 +79,31 @@
((uint32_t)((c) & 0xff) << 16) | \
((uint32_t)((b) & 0xff) << 8) | \
(uint32_t)((a) & 0xff)
#define ip_2_ip6(ipaddr) (&((ipaddr)->u_addr.ip6))
#define ip_2_ip4(ipaddr) (&((ipaddr)->u_addr.ip4))
#define IPADDR_TYPE_V4 0U
#define IPADDR_TYPE_V6 6U
#define IPADDR_TYPE_ANY 46U
#define IP_SET_TYPE_VAL(ipaddr, iptype) do { (ipaddr).type = (iptype); }while(0)
#define IP_ADDR4(ipaddr,a,b,c,d) do { IP4_ADDR(ip_2_ip4(ipaddr),a,b,c,d); \
IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V4); } while(0)
#define IP_ADDR6(ipaddr,i0,i1,i2,i3) do { IP6_ADDR(ip_2_ip6(ipaddr),i0,i1,i2,i3); \
IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V6); } while(0)
#define IPADDR6_INIT(a, b, c, d) { { { { a, b, c, d } } }, IPADDR_TYPE_V6 }
typedef int32_t esp_err_t;
typedef void * xSemaphoreHandle;
typedef void * SemaphoreHandle_t;
typedef void * xQueueHandle;
typedef void * QueueHandle_t;
typedef void * TaskHandle_t;
typedef void * esp_timer_handle_t;
typedef uint32_t TickType_t;
typedef uint32_t portTickType;
typedef enum {
TCPIP_ADAPTER_IF_STA = 0, /**< ESP32 station interface */
TCPIP_ADAPTER_IF_AP, /**< ESP32 soft-AP interface */
TCPIP_ADAPTER_IF_ETH, /**< ESP32 ethernet interface */
TCPIP_ADAPTER_IF_MAX
} tcpip_adapter_if_t;
typedef enum {
WIFI_MODE_NULL = 0, /**< null mode */
@ -87,6 +113,42 @@ typedef enum {
WIFI_MODE_MAX
} wifi_mode_t;
/* status of DHCP client or DHCP server */
typedef enum {
TCPIP_ADAPTER_DHCP_INIT = 0, /**< DHCP client/server in initial state */
TCPIP_ADAPTER_DHCP_STARTED, /**< DHCP client/server already been started */
TCPIP_ADAPTER_DHCP_STOPPED, /**< DHCP client/server already been stopped */
TCPIP_ADAPTER_DHCP_STATUS_MAX
} tcpip_adapter_dhcp_status_t;
typedef enum {
SYSTEM_EVENT_WIFI_READY = 0, /**< ESP32 WiFi ready */
SYSTEM_EVENT_SCAN_DONE, /**< ESP32 finish scanning AP */
SYSTEM_EVENT_STA_START, /**< ESP32 station start */
SYSTEM_EVENT_STA_STOP, /**< ESP32 station stop */
SYSTEM_EVENT_STA_CONNECTED, /**< ESP32 station connected to AP */
SYSTEM_EVENT_STA_DISCONNECTED, /**< ESP32 station disconnected from AP */
SYSTEM_EVENT_STA_AUTHMODE_CHANGE, /**< the auth mode of AP connected by ESP32 station changed */
SYSTEM_EVENT_STA_GOT_IP, /**< ESP32 station got IP from connected AP */
SYSTEM_EVENT_STA_LOST_IP, /**< ESP32 station lost IP and the IP is reset to 0 */
SYSTEM_EVENT_STA_WPS_ER_SUCCESS, /**< ESP32 station wps succeeds in enrollee mode */
SYSTEM_EVENT_STA_WPS_ER_FAILED, /**< ESP32 station wps fails in enrollee mode */
SYSTEM_EVENT_STA_WPS_ER_TIMEOUT, /**< ESP32 station wps timeout in enrollee mode */
SYSTEM_EVENT_STA_WPS_ER_PIN, /**< ESP32 station wps pin code in enrollee mode */
SYSTEM_EVENT_AP_START, /**< ESP32 soft-AP start */
SYSTEM_EVENT_AP_STOP, /**< ESP32 soft-AP stop */
SYSTEM_EVENT_AP_STACONNECTED, /**< a station connected to ESP32 soft-AP */
SYSTEM_EVENT_AP_STADISCONNECTED, /**< a station disconnected from ESP32 soft-AP */
SYSTEM_EVENT_AP_PROBEREQRECVED, /**< Receive probe request packet in soft-AP interface */
SYSTEM_EVENT_GOT_IP6, /**< ESP32 station or ap or ethernet interface v6IP addr is preferred */
SYSTEM_EVENT_ETH_START, /**< ESP32 ethernet start */
SYSTEM_EVENT_ETH_STOP, /**< ESP32 ethernet stop */
SYSTEM_EVENT_ETH_CONNECTED, /**< ESP32 ethernet phy link up */
SYSTEM_EVENT_ETH_DISCONNECTED, /**< ESP32 ethernet phy link down */
SYSTEM_EVENT_ETH_GOT_IP, /**< ESP32 ethernet got IP from connected AP */
SYSTEM_EVENT_MAX
} system_event_id_t;
struct udp_pcb {
uint8_t dummy;
};
@ -101,27 +163,76 @@ struct ip6_addr {
};
typedef struct ip6_addr ip6_addr_t;
typedef struct _ip_addr {
union {
ip6_addr_t ip6;
ip4_addr_t ip4;
} u_addr;
uint8_t type;
} ip_addr_t;
typedef struct {
ip4_addr_t ip;
ip4_addr_t netmask;
ip4_addr_t gw;
} tcpip_adapter_ip_info_t;
// typedef int32_t system_event_id_t;
typedef enum {
TCPIP_ADAPTER_IF_STA = 0, /**< ESP32 station interface */
TCPIP_ADAPTER_IF_AP, /**< ESP32 soft-AP interface */
TCPIP_ADAPTER_IF_ETH, /**< ESP32 ethernet interface */
TCPIP_ADAPTER_IF_MAX
} tcpip_adapter_if_t;
typedef struct {
ip6_addr_t ip;
} tcpip_adapter_ip6_info_t;
typedef struct {
tcpip_adapter_if_t if_index;
tcpip_adapter_ip6_info_t ip6_info;
} system_event_got_ip6_t;
typedef union {
system_event_got_ip6_t got_ip6; /**< ESP32 station　or ap or ethernet ipv6 addr state change to preferred */
} system_event_info_t;
typedef struct {
system_event_id_t event_id; /**< event ID */
system_event_info_t event_info; /**< event information */
} system_event_t;
inline esp_err_t esp_wifi_get_mode(wifi_mode_t * mode)
{
*mode = WIFI_MODE_APSTA;
return ESP_OK;
}
inline uint32_t xTaskGetTickCount()
{
struct timeval tv;
struct timezone tz;
if (gettimeofday(&tv, &tz) == 0) {
return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
}
return 0;
}
struct pbuf {
struct pbuf *next;
void *payload;
uint16_t tot_len;
uint16_t len;
uint8_t /*pbuf_type*/ type;
uint8_t flags;
uint16_t ref;
};
#define IP_GET_TYPE(ipaddr) ((ipaddr)->type)
#define IP_IS_V6_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V6)
#define ip4_addr_copy(dest, src) ((dest).addr = (src).addr)
#define ip6_addr_copy(dest, src) do{(dest).addr[0] = (src).addr[0]; \
(dest).addr[1] = (src).addr[1]; \
(dest).addr[2] = (src).addr[2]; \
(dest).addr[3] = (src).addr[3];}while(0)
#define ip_addr_copy(dest, src) do{ IP_SET_TYPE_VAL(dest, IP_GET_TYPE(&src)); if(IP_IS_V6_VAL(src)){ \
ip6_addr_copy(*ip_2_ip6(&(dest)), *ip_2_ip6(&(src))); }else{ \
ip4_addr_copy(*ip_2_ip4(&(dest)), *ip_2_ip4(&(src))); }}while(0)
#include "esp32_mock.h"
uint32_t xTaskGetTickCount();
#endif //MDNS_TEST_MODE

84
components/mdns/test_afl_fuzz_host/esp32_mock.c Normal file
View File

@ -0,0 +1,84 @@
#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
#include "esp32_compat.h"
void* g_queue;
int g_queue_send_shall_fail = 0;
int g_size = 0;
esp_err_t esp_timer_delete(esp_timer_handle_t timer)
{
return ESP_OK;
}
esp_err_t esp_timer_stop(esp_timer_handle_t timer)
{
return ESP_OK;
}
esp_err_t esp_timer_start_periodic(esp_timer_handle_t timer, uint64_t period)
{
return ESP_OK;
}
esp_err_t esp_timer_create(const esp_timer_create_args_t* create_args,
esp_timer_handle_t* out_handle)
{
return ESP_OK;
}
uint32_t xTaskGetTickCount()
{
struct timeval tv;
struct timezone tz;
if (gettimeofday(&tv, &tz) == 0) {
return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
}
return 0;
}
/// Queue mock
QueueHandle_t xQueueCreate( uint32_t uxQueueLength, uint32_t uxItemSize )
{
g_size = uxItemSize;
g_queue = malloc((uxQueueLength)*(uxItemSize));
return g_queue;
}
void vQueueDelete( QueueHandle_t xQueue )
{
free(xQueue);
}
uint32_t xQueueSend(QueueHandle_t xQueue, const void * pvItemToQueue, TickType_t xTicksToWait)
{
if (g_queue_send_shall_fail)
{
return pdFALSE;
}
else
{
memcpy(xQueue, pvItemToQueue, g_size);
return pdPASS;
}
}
uint32_t xQueueReceive(QueueHandle_t xQueue, void *pvBuffer, TickType_t xTicksToWait)
{
return pdFALSE;
}
void GetLastItem(void *pvBuffer)
{
memcpy(pvBuffer, g_queue, g_size);
}
void ForceTaskDelete()
{
g_queue_send_shall_fail = 1;
}

45
components/mdns/test_afl_fuzz_host/esp32_mock.h Normal file
View File

@ -0,0 +1,45 @@
#ifndef ESP32_MOCK_H_
#define ESP32_MOCK_H_
typedef void (*esp_timer_cb_t)(void* arg);
typedef enum
{
ESP_TIMER_TASK, //!< Callback is called from timer task
} esp_timer_dispatch_t;
typedef struct
{
esp_timer_cb_t callback; //!< Function to call when timer expires
void* arg; //!< Argument to pass to the callback
esp_timer_dispatch_t dispatch_method; //!< Call the callback from task or from ISR
const char* name; //!< Timer name, used in esp_timer_dump function
} esp_timer_create_args_t;
esp_err_t esp_timer_delete(esp_timer_handle_t timer);
esp_err_t esp_timer_stop(esp_timer_handle_t timer);
esp_err_t esp_timer_start_periodic(esp_timer_handle_t timer, uint64_t period);
esp_err_t esp_timer_create(const esp_timer_create_args_t* create_args,
esp_timer_handle_t* out_handle);
// Queue mock
QueueHandle_t xQueueCreate( uint32_t uxQueueLength,
uint32_t uxItemSize );
void vQueueDelete( QueueHandle_t xQueue );
uint32_t xQueueSend(QueueHandle_t xQueue, const void * pvItemToQueue, TickType_t xTicksToWait);
uint32_t xQueueReceive(QueueHandle_t xQueue, void *pvBuffer, TickType_t xTicksToWait);
void GetLastItem(void *pvBuffer);
void ForceTaskDelete();
#define _mdns_udp_pcb_write(tcpip_if, ip_protocol, ip, port, data, len) len
#endif /* ESP32_MOCK_H_ */

53
components/mdns/test_afl_fuzz_host/mdns_di.h Normal file
View File

@ -0,0 +1,53 @@
/*
* MDNS Dependecy injection -- preincluded to inject interface test functions into static variables
*
*/
#include "mdns.h"
#include "mdns_private.h"
void (*mdns_test_static_execute_action)(mdns_action_t *) = NULL;
mdns_srv_item_t * (*mdns_test_static_mdns_get_service_item)(const char * service, const char * proto) = NULL;
mdns_search_once_t * (*mdns_test_static_search_init)(const char * name, const char * service, const char * proto, uint16_t type, uint32_t timeout, uint8_t max_results) = NULL;
esp_err_t (*mdns_test_static_send_search_action)(mdns_action_type_t type, mdns_search_once_t * search) = NULL;
void (*mdns_test_static_search_free)(mdns_search_once_t * search) = NULL;
static void _mdns_execute_action(mdns_action_t * action);
static mdns_srv_item_t * _mdns_get_service_item(const char * service, const char * proto);
static mdns_search_once_t * _mdns_search_init(const char * name, const char * service, const char * proto, uint16_t type, uint32_t timeout, uint8_t max_results);
static esp_err_t _mdns_send_search_action(mdns_action_type_t type, mdns_search_once_t * search);
static void _mdns_search_free(mdns_search_once_t * search);
void mdns_test_init_di()
{
mdns_test_static_execute_action = _mdns_execute_action;
mdns_test_static_mdns_get_service_item = _mdns_get_service_item;
mdns_test_static_search_init = _mdns_search_init;
mdns_test_static_send_search_action = _mdns_send_search_action;
mdns_test_static_search_free = _mdns_search_free;
}
void mdns_test_execute_action(void * action)
{
mdns_test_static_execute_action((mdns_action_t *)action);
}
void mdns_test_search_free(mdns_search_once_t * search)
{
return mdns_test_static_search_free(search);
}
esp_err_t mdns_test_send_search_action(mdns_action_type_t type, mdns_search_once_t * search)
{
return mdns_test_static_send_search_action(type, search);
}
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)
{
return mdns_test_static_search_init(name, service, proto, type, timeout, max_results);
}
mdns_srv_item_t * mdns_test_mdns_get_service_item(const char * service, const char * proto)
{
return mdns_test_static_mdns_get_service_item(service, proto);
}

209
components/mdns/test_afl_fuzz_host/test.c
View File

@ -12,8 +12,6 @@
// See the License for the specific language governing permissions and
// limitations under the License.
#ifdef MDNS_TEST_MODE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@ -21,93 +19,210 @@
#include <string.h>
#include "mdns.h"
#include "mdns_private.h"
void mdns_parse_packet(mdns_server_t * server, const uint8_t * data, size_t len);
//
// Global stuctures containing packet payload, search
mdns_rx_packet_t g_packet;
struct pbuf mypbuf;
mdns_search_once_t * search = NULL;
//
// Dependency injected test functions
void mdns_test_execute_action(void * action);
mdns_srv_item_t * mdns_test_mdns_get_service_item(const char * service, const char * proto);
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);
esp_err_t mdns_test_send_search_action(mdns_action_type_t type, mdns_search_once_t * search);
void mdns_test_search_free(mdns_search_once_t * search);
void mdns_test_init_di();
//
// mdns function wrappers for mdns setup in test mode
static int mdns_test_hostname_set(const char * mdns_hostname)
{
int ret = mdns_hostname_set(mdns_hostname);
mdns_action_t * a = NULL;
GetLastItem(&a);
mdns_test_execute_action(a);
return ret;
}
static int mdns_test_service_instance_name_set(const char * service, const char * proto, const char * instance)
{
int ret = mdns_service_instance_name_set(service, proto, instance);
mdns_action_t * a = NULL;
GetLastItem(&a);
mdns_test_execute_action(a);
return ret;
}
static int mdns_test_service_txt_set(const char * service, const char * proto, uint8_t num_items, mdns_txt_item_t txt[])
{
int ret = mdns_service_txt_set(service, proto, txt, num_items);
mdns_action_t * a = NULL;
GetLastItem(&a);
mdns_test_execute_action(a);
return ret;
}
static int mdns_test_service_add(const char * service_name, const char * proto, uint32_t port)
{
if (mdns_service_add(NULL, service_name, proto, port, NULL, 0)) {
// This is expected failure as the service thread is not running
}
mdns_action_t * a = NULL;
GetLastItem(&a);
mdns_test_execute_action(a);
if (mdns_test_mdns_get_service_item(service_name, proto)==NULL) {
return ESP_FAIL;
}
return ESP_OK;
}
static mdns_result_t* mdns_test_query(const char * service_name, const char * proto)
{
search = mdns_test_search_init(NULL, service_name, proto, MDNS_TYPE_PTR, 3000, 20);
if (!search) {
abort();
}
if (mdns_test_send_search_action(ACTION_SEARCH_ADD, search)) {
mdns_test_search_free(search);
abort();
}
mdns_action_t * a = NULL;
GetLastItem(&a);
mdns_test_execute_action(a);
return NULL;
}
static void mdns_test_query_free()
{
mdns_test_search_free(search);
}
//
// function "under test" where afl-mangled packets passed
//
void mdns_parse_packet(mdns_rx_packet_t * packet);
//
// Test starts here
//
int main(int argc, char** argv)
{
int i;
const char * mdns_hostname = "minifritz";
const char * mdns_instance = "Hristo's Time Capsule";
const char * arduTxtData[4] = {
"board=esp32",
"tcp_check=no",
"ssh_upload=no",
"auth_upload=no"
mdns_txt_item_t arduTxtData[4] = {
{"board","esp32"},
{"tcp_check","no"},
{"ssh_upload","no"},
{"auth_upload","no"}
};
const uint8_t mac[6] = {0xDE, 0xAD, 0xBE, 0xEF, 0x00, 0x32};
mdns_server_t * mdns = NULL;
uint8_t buf[1460];
char winstance[21+strlen(mdns_hostname)];
sprintf(winstance, "%s [%02x:%02x:%02x:%02x:%02x:%02x]", mdns_hostname, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
if (mdns_init(TCPIP_ADAPTER_IF_ETH, &mdns)) {
// Init depencency injected methods
mdns_test_init_di();
if (mdns_init()) {
abort();
}
if (mdns_set_hostname(mdns, mdns_hostname)) {
if (mdns_test_hostname_set(mdns_hostname)) {
abort();
}
if (mdns_set_instance(mdns, mdns_instance)) {
if (mdns_test_service_add("_workstation", "_tcp", 9)) {
abort();
}
if (mdns_test_service_instance_name_set("_workstation", "_tcp", winstance)) {
abort();
}
if (mdns_service_add(mdns, "_workstation", "_tcp", 9)) {
if (mdns_test_service_add("_arduino", "_tcp", 3232)) {
abort();
}
if (mdns_service_instance_set(mdns, "_workstation", "_tcp", winstance)) {
if (mdns_test_service_txt_set("_arduino", "_tcp", 4, arduTxtData)) {
abort();
}
if (mdns_service_add(mdns, "_arduino", "_tcp", 3232)) {
if (mdns_test_service_add("_http", "_tcp", 80)) {
abort();
}
if (mdns_service_txt_set(mdns, "_arduino", "_tcp", 4, arduTxtData)) {
abort();
}
if (mdns_service_add(mdns, "_http", "_tcp", 80)) {
abort();
}
if (mdns_service_instance_set(mdns, "_http", "_tcp", "ESP WebServer")) {
if (mdns_test_service_instance_name_set("_http", "_tcp", "ESP WebServer")) {
abort();
}
if (
mdns_service_add(mdns, "_afpovertcp", "_tcp", 548)
|| mdns_service_add(mdns, "_rfb", "_tcp", 885)
|| mdns_service_add(mdns, "_smb", "_tcp", 885)
|| mdns_service_add(mdns, "_adisk", "_tcp", 885)
|| mdns_service_add(mdns, "_airport", "_tcp", 885)
|| mdns_service_add(mdns, "_printer", "_tcp", 885)
|| mdns_service_add(mdns, "_airplay", "_tcp", 885)
|| mdns_service_add(mdns, "_raop", "_tcp", 885)
|| mdns_service_add(mdns, "_uscan", "_tcp", 885)
|| mdns_service_add(mdns, "_uscans", "_tcp", 885)
|| mdns_service_add(mdns, "_ippusb", "_tcp", 885)
|| mdns_service_add(mdns, "_scanner", "_tcp", 885)
|| mdns_service_add(mdns, "_ipp", "_tcp", 885)
|| mdns_service_add(mdns, "_ipps", "_tcp", 885)
|| mdns_service_add(mdns, "_pdl-datastream", "_tcp", 885)
|| mdns_service_add(mdns, "_ptp", "_tcp", 885)
|| mdns_service_add(mdns, "_sleep-proxy", "_udp", 885))
mdns_test_service_add("_afpovertcp", "_tcp", 548)
|| mdns_test_service_add("_rfb", "_tcp", 885)
|| mdns_test_service_add("_smb", "_tcp", 885)
|| mdns_test_service_add("_adisk", "_tcp", 885)
|| mdns_test_service_add("_airport", "_tcp", 885)
|| mdns_test_service_add("_printer", "_tcp", 885)
|| mdns_test_service_add("_airplay", "_tcp", 885)
|| mdns_test_service_add("_raop", "_tcp", 885)
|| mdns_test_service_add("_uscan", "_tcp", 885)
|| mdns_test_service_add("_uscans", "_tcp", 885)
|| mdns_test_service_add("_ippusb", "_tcp", 885)
|| mdns_test_service_add("_scanner", "_tcp", 885)
|| mdns_test_service_add("_ipp", "_tcp", 885)
|| mdns_test_service_add("_ipps", "_tcp", 885)
|| mdns_test_service_add("_pdl-datastream", "_tcp", 885)
|| mdns_test_service_add("_ptp", "_tcp", 885)
|| mdns_test_service_add("_sleep-proxy", "_udp", 885))
{
abort();
abort();
}
mdns_result_t * results = NULL;
FILE *file;
size_t nread;
#ifdef INSTR_IS_OFF
size_t len = 1460;
memset(buf, 0, 1460);
if (argc != 2)
{
printf("Non-instrumentation mode: please supply a file name created by AFL to reproduce crash\n");
return 1;
}
else
{
//
// Note: parameter1 is a file (mangled packet) which caused the crash
file = fopen(argv[1], "r");
if (file) {
len = fread(buf, 1, 1460, file);
}
fclose(file);
}
for (i=0; i<1; i++) {
#else
while (__AFL_LOOP(1000)) {
memset(buf, 0, 1460);
size_t len = read(0, buf, 1460);
mdns_query(mdns, "_afpovertcp", "_tcp", 0);
mdns_parse_packet(mdns, buf, len);
mdns_query_end(mdns);
#endif
mypbuf.payload = buf;
mypbuf.len = len;
g_packet.pb = &mypbuf;
mdns_test_query("_afpovertcp", "_tcp");
mdns_parse_packet(&g_packet);
}
ForceTaskDelete();
mdns_free();
return 0;
}
#endif