mirror of
https://github.com/esp8266/Arduino.git
synced 2025-04-21 10:26:06 +03:00
fix invalid packets, removes compression
This commit is contained in:
Eric Wilkison
parent
e7024fb5b4
commit
d45294efff
@ -380,17 +380,40 @@ void MDNSResponder::_reply(uint8_t replyMask, char * service, char *proto, uint1
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if(replyMask == 0) return;
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#ifdef MDNS_DEBUG_TX
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os_printf("TX: mask:%01X, service:%s, proto:%s, port:%u\n", replyMask, service, proto, port);
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Serial.printf("TX: mask:%01X, service:%s, proto:%s, port:%u\n", replyMask, service, proto, port);
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#endif
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char nameLen = os_strlen(_hostName);
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size_t serviceLen = os_strlen(service);
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char * hostName = _hostName;
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size_t hostNameLen = os_strlen(hostName);
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char underscore[] = "_";
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// build service name with _
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char serviceName[os_strlen(service)+2];
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os_strcpy(serviceName,underscore);
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os_strcat(serviceName, service);
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size_t serviceNameLen = os_strlen(serviceName);
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//build proto name with _
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char protoName[5];
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os_strcpy(protoName,underscore);
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os_strcat(protoName, proto);
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size_t protoNameLen = 4;
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//local string
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char localName[] = "local";
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size_t localNameLen = 5;
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//terminator
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char terminator[] = "\0";
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uint8_t answerCount = 0;
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for(i=0;i<4;i++){
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if(replyMask & (1 << i)) answerCount++;
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}
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//Write the header
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_conn->flush();
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uint8_t head[12] = {
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0x00, 0x00, //ID = 0
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@ -402,138 +425,135 @@ void MDNSResponder::_reply(uint8_t replyMask, char * service, char *proto, uint1
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};
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_conn->append(reinterpret_cast<const char*>(head), 12);
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if((replyMask & 0x8) == 0){
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_conn->append(reinterpret_cast<const char*>(&nameLen), 1);
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_conn->append(reinterpret_cast<const char*>(_hostName), nameLen);
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}
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if(replyMask & 0xE){
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uint8_t servHead[2] = {(uint8_t)(serviceLen+1), '_'};
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uint8_t protoHead[2] = {0x4, '_'};
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_conn->append(reinterpret_cast<const char*>(servHead), 2);
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_conn->append(reinterpret_cast<const char*>(service), serviceLen);
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_conn->append(reinterpret_cast<const char*>(protoHead), 2);
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_conn->append(reinterpret_cast<const char*>(proto), 3);
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}
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uint8_t local[7] = {
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0x05, //strlen(_local)
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0x6C, 0x6F, 0x63, 0x61, 0x6C, //local
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0x00, //End of domain
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};
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_conn->append(reinterpret_cast<const char*>(local), 7);
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// PTR Response
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if(replyMask & 0x8){
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uint8_t ptr[10] = {
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// Send the Name field (ie. "_http._tcp.local")
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_conn->append(reinterpret_cast<const char*>(&serviceNameLen), 1); // lenght of "_http"
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_conn->append(reinterpret_cast<const char*>(serviceName), serviceNameLen); // "_http"
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_conn->append(reinterpret_cast<const char*>(&protoNameLen), 1); // lenght of "_tcp"
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_conn->append(reinterpret_cast<const char*>(protoName), protoNameLen); // "_tcp"
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_conn->append(reinterpret_cast<const char*>(&localNameLen), 1); // lenght "local"
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_conn->append(reinterpret_cast<const char*>(localName), localNameLen); // "local"
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_conn->append(reinterpret_cast<const char*>(&terminator), 1); // terminator
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//Send the type, class, ttl and rdata length
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uint8_t ptrDataLen = hostNameLen + serviceNameLen + protoNameLen + localNameLen + 5; // 5 is four label sizes and the terminator
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uint8_t ptrAttrs[10] = {
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0x00, 0x0c, //PTR record query
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0x00, 0x01, //Class IN
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0x00, 0x00, 0x11, 0x94, //TTL 4500
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0x00, (uint8_t)(3 + nameLen), //***DATA LEN (3 + strlen(host))
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0x00, ptrDataLen, //RData length
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};
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_conn->append(reinterpret_cast<const char*>(ptr), 10);
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_conn->append(reinterpret_cast<const char*>(&nameLen), 1);
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_conn->append(reinterpret_cast<const char*>(_hostName), nameLen);
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uint8_t ptrTail[2] = {0xC0, 0x0C};
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_conn->append(reinterpret_cast<const char*>(ptrTail), 2);
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_conn->append(reinterpret_cast<const char*>(ptrAttrs), 10);
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//Send the RData (ie. "esp8266._http._tcp.local")
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_conn->append(reinterpret_cast<const char*>(&hostNameLen), 1); // lenght of "esp8266"
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_conn->append(reinterpret_cast<const char*>(hostName), hostNameLen); // "esp8266"
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_conn->append(reinterpret_cast<const char*>(&serviceNameLen), 1); // lenght of "_http"
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_conn->append(reinterpret_cast<const char*>(serviceName), serviceNameLen); // "_http"
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_conn->append(reinterpret_cast<const char*>(&protoNameLen), 1); // lenght of "_tcp"
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_conn->append(reinterpret_cast<const char*>(protoName), protoNameLen); // "_tcp"
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_conn->append(reinterpret_cast<const char*>(&localNameLen), 1); // lenght "local"
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_conn->append(reinterpret_cast<const char*>(localName), localNameLen); // "local"
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_conn->append(reinterpret_cast<const char*>(&terminator), 1); // terminator
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}
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// TXT Response
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//TXT Responce
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if(replyMask & 0x4){
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if(replyMask & 0x8){
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uint8_t txtHead[10] = {
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0xC0, (uint8_t)(36 + serviceLen),//send the name
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0x00, 0x10, //Type TXT
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0x80, 0x01, //Class IN, with cache flush
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//Send the name field (ie. "esp8266._http._tcp.local")
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_conn->append(reinterpret_cast<const char*>(&hostNameLen), 1); // lenght of "esp8266"
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_conn->append(reinterpret_cast<const char*>(hostName), hostNameLen); // "esp8266"
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_conn->append(reinterpret_cast<const char*>(&serviceNameLen), 1); // lenght of "_http"
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_conn->append(reinterpret_cast<const char*>(serviceName), serviceNameLen); // "_http"
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_conn->append(reinterpret_cast<const char*>(&protoNameLen), 1); // lenght of "_tcp"
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_conn->append(reinterpret_cast<const char*>(protoName), protoNameLen); // "_tcp"
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_conn->append(reinterpret_cast<const char*>(&localNameLen), 1); // lenght "local"
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_conn->append(reinterpret_cast<const char*>(localName), localNameLen); // "local"
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_conn->append(reinterpret_cast<const char*>(&terminator), 1); // terminator
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//Send the type, class, ttl and rdata length
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uint8_t txtDataLen = 0;
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uint8_t txtAttrs[10] = {
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0x00, 0x10, //TXT record query
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0x00, 0x01, //Class IN
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0x00, 0x00, 0x11, 0x94, //TTL 4500
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0x00, txtDataLen, //RData length
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};
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_conn->append(reinterpret_cast<const char*>(txtHead), 10);
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_conn->append(reinterpret_cast<const char*>(txtAttrs), 10);
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//Send the RData
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//TODO - Build TXT Redords
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}
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if(strcmp(reinterpret_cast<const char*>("arduino"), service) == 0){
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//arduino
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//arduino service dependance should be removed and properties abstracted
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const char *tcpCheckExtra = "tcp_check=no";
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uint8_t tcpCheckExtraLen = os_strlen(tcpCheckExtra);
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const char *sshUploadExtra = "ssh_upload=no";
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uint8_t sshUploadExtraLen = os_strlen(sshUploadExtra);
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char boardName[64];
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const char *boardExtra = "board=";
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os_sprintf(boardName, "%s%s", boardExtra, ARDUINO_BOARD);
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uint8_t boardNameLen = os_strlen(boardName);
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char authUpload[16];
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const char *authUploadExtra = "auth_upload=";
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os_sprintf(authUpload, "%s%s", authUploadExtra, reinterpret_cast<const char*>((_arduinoAuth)?"yes":"no"));
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uint8_t authUploadLen = os_strlen(authUpload);
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uint16_t textDataLen = (1 + boardNameLen) + (1 + tcpCheckExtraLen) + (1 + sshUploadExtraLen) + (1 + authUploadLen);
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uint8_t txt[2] = {(uint8_t)(textDataLen >> 8), (uint8_t)(textDataLen)}; //DATA LEN
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_conn->append(reinterpret_cast<const char*>(txt), 2);
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_conn->append(reinterpret_cast<const char*>(&boardNameLen), 1);
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_conn->append(reinterpret_cast<const char*>(boardName), boardNameLen);
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_conn->append(reinterpret_cast<const char*>(&authUploadLen), 1);
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_conn->append(reinterpret_cast<const char*>(authUpload), authUploadLen);
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_conn->append(reinterpret_cast<const char*>(&tcpCheckExtraLen), 1);
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_conn->append(reinterpret_cast<const char*>(tcpCheckExtra), tcpCheckExtraLen);
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_conn->append(reinterpret_cast<const char*>(&sshUploadExtraLen), 1);
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_conn->append(reinterpret_cast<const char*>(sshUploadExtra), sshUploadExtraLen);
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} else {
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//not arduino
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//we should figure out an API so TXT properties can be added for services
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uint8_t txt[2] = {0,0};
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_conn->append(reinterpret_cast<const char*>(txt), 2);
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}
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}
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// SRV Response
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//SRV Responce
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if(replyMask & 0x2){
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if(replyMask & 0xC){//send the name
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uint8_t srvHead[2] = {0xC0, 0x0C};
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if(replyMask & 0x8)
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srvHead[1] = 36 + serviceLen;
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_conn->append(reinterpret_cast<const char*>(srvHead), 2);
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}
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//Send the name field (ie. "esp8266._http._tcp.local")
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_conn->append(reinterpret_cast<const char*>(&hostNameLen), 1); // lenght of "esp8266"
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_conn->append(reinterpret_cast<const char*>(hostName), hostNameLen); // "esp8266"
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_conn->append(reinterpret_cast<const char*>(&serviceNameLen), 1); // lenght of "_http"
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_conn->append(reinterpret_cast<const char*>(serviceName), serviceNameLen); // "_http"
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_conn->append(reinterpret_cast<const char*>(&protoNameLen), 1); // lenght of "_tcp"
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_conn->append(reinterpret_cast<const char*>(protoName), protoNameLen); // "_tcp"
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_conn->append(reinterpret_cast<const char*>(&localNameLen), 1); // lenght "local"
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_conn->append(reinterpret_cast<const char*>(localName), localNameLen); // "local"
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_conn->append(reinterpret_cast<const char*>(&terminator), 1); // terminator
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uint8_t srv[16] = {
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//Send the type, class, ttl, rdata length, priority and weight
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uint8_t srvDataSize = hostNameLen + localNameLen + 3; // 3 is 2 lable size bytes and the terminator
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srvDataSize += 6; // Size of Priority, weight and port
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uint8_t srvAttrs[10] = {
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0x00, 0x21, //Type SRV
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0x80, 0x01, //Class IN, with cache flush
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0x00, 0x00, 0x00, 0x78, //TTL 120
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0x00, (uint8_t)(9 + nameLen), //DATA LEN (9 + strlen(host))
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0x00, srvDataSize, //RData length
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};
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_conn->append(reinterpret_cast<const char*>(srvAttrs), 10);
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//Send the RData Priority weight and port
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uint8_t srvRData[6] = {
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0x00, 0x00, //Priority 0
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0x00, 0x00, //Weight 0
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(uint8_t)((port >> 8) & 0xFF), (uint8_t)(port & 0xFF)
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};
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_conn->append(reinterpret_cast<const char*>(srv), 16);
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_conn->append(reinterpret_cast<const char*>(&nameLen), 1);
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_conn->append(reinterpret_cast<const char*>(_hostName), nameLen);
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uint8_t srvTail[2] = {0xC0, (uint8_t)(20 + serviceLen + nameLen)};
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if(replyMask & 0x8)
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srvTail[1] = 19 + serviceLen;
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_conn->append(reinterpret_cast<const char*>(srvTail), 2);
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_conn->append(reinterpret_cast<const char*>(srvRData), 6);
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//Send the RData (ie. "esp8266.local")
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_conn->append(reinterpret_cast<const char*>(&hostNameLen), 1); // lenght of "esp8266"
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_conn->append(reinterpret_cast<const char*>(hostName), hostNameLen); // "esp8266"
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_conn->append(reinterpret_cast<const char*>(&localNameLen), 1); // lenght "local"
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_conn->append(reinterpret_cast<const char*>(localName), localNameLen); // "local"
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_conn->append(reinterpret_cast<const char*>(&terminator), 1); // terminator
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}
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// A Response
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if(replyMask & 0x1){
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uint32_t ip = _getOurIp();
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if(replyMask & 0x2){//send the name (no compression for now)
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_conn->append(reinterpret_cast<const char*>(&nameLen), 1);
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_conn->append(reinterpret_cast<const char*>(_hostName), nameLen);
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_conn->append(reinterpret_cast<const char*>(local), 7);
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}
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//Send the RData (ie. "esp8266.local")
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_conn->append(reinterpret_cast<const char*>(&hostNameLen), 1); // lenght of "esp8266"
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_conn->append(reinterpret_cast<const char*>(hostName), hostNameLen); // "esp8266"
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_conn->append(reinterpret_cast<const char*>(&localNameLen), 1); // lenght "local"
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_conn->append(reinterpret_cast<const char*>(localName), localNameLen); // "local"
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_conn->append(reinterpret_cast<const char*>(&terminator), 1); // terminator
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uint8_t aaa[14] = {
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uint32_t ip = _getOurIp();
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uint8_t aaaAttrs[10] = {
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0x00, 0x01, //TYPE A
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0x80, 0x01, //Class IN, with cache flush
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0x00, 0x00, 0x00, 0x78, //TTL 120
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0x00, 0x04, //DATA LEN
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(uint8_t)(ip & 0xFF), (uint8_t)((ip >> 8) & 0xFF), (uint8_t)((ip >> 16) & 0xFF), (uint8_t)((ip >> 24) & 0xFF)
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};
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_conn->append(reinterpret_cast<const char*>(aaa), 14);
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_conn->append(reinterpret_cast<const char*>(aaaAttrs), 10);
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// Send RData
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uint8_t aaaRData[4] = {
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(uint8_t)(ip & 0xFF), //IP first octet
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(uint8_t)((ip >> 8) & 0xFF), //IP second octet
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(uint8_t)((ip >> 16) & 0xFF), //IP third octet
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(uint8_t)((ip >> 24) & 0xFF) //IP fourth octet
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};
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_conn->append(reinterpret_cast<const char*>(aaaRData), 4);
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}
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_conn->send();
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}
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