Revision 0:a3d41f923207, committed 2010-11-17

Comitter:

AjK

Date:

Wed Nov 17 19:39:33 2010 +0000

Commit message:

TEST ONLY!

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LLDP.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,87 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+
+#include "mbed.h"
+#include "LLDP.h"
+
+const char LLDPinfo1[] = "MBED";
+const char LLDPinfo2[] = "A rapid prototyping system for the LPC17xx embedded microcontroller";
+const char LLDPinfo3[] = "\x00\x80\x00\x80";
+
+LLDP::LLDP() : Ethernet() 
+{
+    int totalLength = 0;
+    address(macAddress);
+    
+    memset(buffer, 0xFF, sizeof(buffer));
+    
+    // Default to 4:MACAddress 
+    _chassis.setSubtype(4);
+    _chassis.setPayload(macAddress, 6);
+    
+    // Default to 4:MACAddress 
+    _port.setSubtype(3);
+    _port.setPayload(macAddress, 6);
+    
+    //_mbed.setOUI(macAddress);
+    //_mbed.setSubtype(1);
+    //_mbed.setPayload((char *)LLDPinfo, strlen(LLDPinfo));
+    _systemName.base.header.setType(5);
+    _systemName.setPayload((char *)LLDPinfo1, strlen(LLDPinfo1));
+    
+    _systemDesc.base.header.setType(6);
+    _systemDesc.setPayload((char *)LLDPinfo2, strlen(LLDPinfo2));
+    
+    _systemCap.base.header.setType(7);
+    _systemCap.setPayload((char *)LLDPinfo3, 4);
+    
+    totalLength += _chassis.copy(buffer + totalLength);
+    totalLength += _port.copy(buffer + totalLength);
+    totalLength += _ttl.copy(buffer + totalLength);
+    //totalLength += _mbed.copy(buffer + totalLength);
+    totalLength += _systemName.copy(buffer + totalLength);
+    totalLength += _systemDesc.copy(buffer + totalLength);
+    totalLength += _systemCap.copy(buffer + totalLength);
+    totalLength += _end.copy(buffer + totalLength);
+    buflen = totalLength;   
+}
+
+void
+LLDP::broadcast(void)
+{
+    char e[6 + 6 + 2];
+    
+    e[0] = 0x01; e[1] = 0x80; e[2] = 0xc2; e[3] = 0x00; e[4] = 0x00; e[5] = 0x0e;
+    e[6] = macAddress[0];
+    e[7] = macAddress[1];
+    e[8] = macAddress[2];
+    e[9] = macAddress[3];
+    e[10] = macAddress[4];
+    e[11] = macAddress[5];
+    e[12] = 0x88;
+    e[13] = 0xCC;
+    
+    write(e, 6 + 6 + 2);
+    write(buffer, buflen);
+    send();    
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LLDP.h	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,63 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef LLPDP_H
+#define LLPDP_H
+
+#ifndef MBED_H
+#include "mbed.h"
+#endif
+
+#include "tlv.h"
+#include "tlv_chassis.h"
+#include "tlv_port.h"
+#include "tlv_ttl.h"
+#include "tlv_basic.h"
+#include "tlv_custom.h"
+
+class LLDP : public Ethernet
+{
+public:
+
+    LLDP();
+    virtual ~LLDP() {}
+    
+    void broadcast(void);    
+    
+    // Properties.
+    tlv_chassis _chassis;        
+    tlv_port    _port;
+    tlv_ttl     _ttl;
+    tlv_custom  _mbed;
+    tlv_basic   _systemName;
+    tlv_basic   _systemDesc;
+    tlv_basic   _systemCap;
+    tlv_header  _end;
+    
+    char macAddress[6];
+    char buffer[0x600];
+    int  buflen;
+    
+        
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/example.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,42 @@
+#ifdef COMPILE_LLDP_TEXT
+
+#include "mbed.h"
+#include "LLDP.h"
+
+Serial pc(USBTX, USBRX);
+DigitalOut myled(LED1);
+LLDP lldp;
+
+int main() {
+    char test[256];
+    int j, k;
+      
+    pc.baud(115200);
+
+    pc.printf("Chassis type = %d\r\n", lldp._chassis.base.header.getType());
+    pc.printf("Chassis len  = %d\r\n", lldp._chassis.base.header.getLength());
+    for (j = 0, k = lldp._chassis.copy(test); j < k; j++) pc.printf("%02X ", test[j]);
+    pc.printf("\r\n");
+    
+    pc.printf("Port type = %d\r\n", lldp._port.base.header.getType());
+    pc.printf("Port len  = %d\r\n", lldp._port.base.header.getLength());
+    for (j = 0, k = lldp._port.copy(test); j < k; j++) pc.printf("%02X ", test[j]);
+    pc.printf("\r\n");
+    
+
+    pc.printf("Size is %d\r\n", lldp.buflen);
+    for (int i = 0; i < lldp.buflen; i++) {
+        pc.printf("%02X ", lldp.buffer[i]);
+    }
+    pc.printf("\r\nDone.\r\n");
+    
+    while(1) {
+        myled = 1;
+        wait(0.5);
+        myled = 0;
+        wait(0.5);
+        lldp.broadcast();
+    }
+}
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,32 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#include "tlv.h"
+
+int
+tlv_header::copy(char *buf)
+{
+    buf[0] = typeLength >> 8 & 0xFF;
+    buf[1] = typeLength & 0xFF;
+    return 2;  
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv.h	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,52 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef TLV_H
+#define TLV_H
+
+#ifndef MBED_H
+#include "mbed.h"
+#endif
+
+class tlv_header {
+public:
+    uint16_t    typeLength;
+    tlv_header() { typeLength = 0; }
+    int copy (char *s);
+    void setType(int type) { typeLength |= ((type & 0x7F) << 9); }
+    int  getType(void) { return (typeLength >> 9) & 0x7F; }
+    void setLength(int len) { typeLength |= (len & 0x1FF); }
+    int  getLength(void) { return typeLength & 0x1FF; }
+    //void setType(int type) { typeLength |= (type & 0x7F); }
+    //int  getType(void) { return typeLength & 0x7F; }
+    //void setLength(int len) { typeLength |= ((len & 0x1FF) << 7); }
+    //int  getLength(void) { return (typeLength >> 7) & 0x1FF; }
+};
+
+class tlv_payload {
+public:
+    char   *pointer;
+    int     length;
+    tlv_payload() { length = 0; pointer = NULL; }
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_basic.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,32 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#include "tlv_basic.h"
+
+int
+tlv_basic::copy(char *buf)
+{
+    base.header.setLength(payload.length);
+    base.header.copy(buf);
+    memcpy(&buf[2], (char *)payload.pointer, payload.length);
+    return base.header.getLength() + 2;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_basic.h	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,42 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef TLV_BASIC_H
+#define TLV_BASIC_H
+
+#include "tlv.h"
+
+class tlv_basic_base {
+public:
+    tlv_header  header;
+};
+
+class tlv_basic {
+public:
+    tlv_basic_base  base;
+    tlv_payload     payload;
+    
+    void setPayload(char *s, int len) { payload.pointer = s; payload.length = len; }
+    int copy (char *s);
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_chassis.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,34 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#include "tlv_chassis.h"
+
+
+int
+tlv_chassis::copy(char *buf)
+{
+    base.header.setLength(sizeof(tlv_chassis_base) - 2 + payload.length - 1);
+    base.header.copy(buf);
+    buf[2] = (char)base.subtype;
+    memcpy(buf + sizeof(tlv_chassis_base) - 1, (char *)payload.pointer, payload.length);
+    return base.header.getLength() + 2;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_chassis.h	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,45 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef TLV_CHASSIS_H
+#define TLV_CHASSIS_H
+
+#include "tlv.h"
+
+class tlv_chassis_base {
+public:
+    tlv_header      header;
+    uint8_t         subtype;
+    tlv_chassis_base () { header.setType(1); }    
+};
+
+class tlv_chassis {
+public:
+    tlv_chassis_base    base;
+    tlv_payload         payload;
+    
+    void setSubtype(int subtype) { base.subtype = (uint8_t)(subtype & 0xFF); }
+    void setPayload(char *s, int len) { payload.pointer = s; payload.length = len; }
+    int copy (char *);
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_custom.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,36 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#include "tlv_custom.h"
+
+int
+tlv_custom::copy(char *buf)
+{
+    base.header.setLength(6 + payload.length);
+    base.header.copy(buf);
+    buf[2] = (char)base.oui[0];
+    buf[3] = (char)base.oui[1];
+    buf[4] = (char)base.oui[2];
+    buf[5] = (char)base.subtype;
+    memcpy(&buf[6], (char *)payload.pointer, payload.length);
+    return base.header.getLength();
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_custom.h	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,47 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef TLV_CUSTOM_H
+#define TLV_CUSTOM_H
+
+#include "tlv.h"
+
+class tlv_custom_base {
+public:
+    tlv_header  header;
+    uint8_t     oui[3];
+    uint8_t     subtype;
+    tlv_custom_base () { header.setType(127); }    
+};
+
+class tlv_custom {
+public:
+    tlv_custom_base base;
+    tlv_payload     payload;
+   
+    void setOUI(char *s) { base.oui[0] = s[0]; base.oui[1] = s[1]; base.oui[2] = s[2]; }
+    void setSubtype(int subtype) { base.subtype = (uint8_t)(subtype & 0xFF); }
+    void setPayload(char *s, int len) { payload.pointer = s; payload.length = len; }
+    int copy (char *);
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_port.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,33 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#include "tlv_port.h"
+
+int
+tlv_port::copy(char *buf)
+{
+    base.header.setLength(sizeof(tlv_port_base) - 2 + payload.length - 1);
+    base.header.copy(buf);
+    buf[2] = (char)base.subtype;
+    memcpy(buf + sizeof(tlv_port_base) - 1, (char *)payload.pointer, payload.length);
+    return base.header.getLength() + 2;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_port.h	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,45 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef TLV_PORT_H
+#define TLV_PORT_H
+
+#include "tlv.h"
+
+class tlv_port_base {
+public:
+    tlv_header  header;
+    uint8_t     subtype;
+    tlv_port_base() { header.setType(2); }
+};
+
+class tlv_port {
+public:
+    tlv_port_base   base;
+    tlv_payload     payload;
+    
+    void setSubtype(int subtype) { base.subtype = (uint8_t)(subtype & 0xFF); }
+    void setPayload(char *s, int len) { payload.pointer = s; payload.length = len; }
+    int copy (char *s);
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_ttl.cpp	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,32 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#include "tlv_ttl.h"
+
+int
+tlv_ttl::copy(char *buf)
+{
+    header.copy(buf);
+    buf[2] = (char)((ttl >> 8) & 0xFF);
+    buf[3] = (char)(ttl & 0xFF);
+    return header.getLength() + 2;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tlv_ttl.h	Wed Nov 17 19:39:33 2010 +0000
@@ -0,0 +1,38 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef TLV_TTL_H
+#define TLV_TTL_H
+
+#include "tlv.h"
+
+class tlv_ttl {
+public:
+    tlv_header  header;
+    uint16_t    ttl;
+    tlv_ttl() {  header.setType(3); header.setLength(2); ttl = 300; }
+    
+    void setTTL(int value) { ttl = (uint16_t)(value & 0xFFFF); }
+    int copy (char *s);
+};
+
+#endif