Token Gateway Using Arduino Client

Hi Mikko,

I have following your suggestion, now my code is like below:

gxTokenGateway objToken;
dlmsVARIANT params;
var_init(&params);
unsigned char token[10] = {0x04, 0x57, 0x22, 0x25, 0x33, 0x78, 0x37, 0x00, 0x00, 0x77};
var_addBytes(&params, token, sizeof(token));
cosem_init(BASE(objToken), DLMS_OBJECT_TYPE_TOKEN_GATEWAY, "0.0.19.40.0.255");
com_method(BASE(objToken), 1, &params);
obj_toString(BASE(objToken), &data);
GXTRACE(PSTR("Ori token : "), data);
obj_clear(BASE(objToken));
free(data);

but I still got the same error :

[DEBUG][TX] : 7E A0 37 2 47 9 76 EC E1 E6 E6 0 CB 28 30 0 0 0 B D4 3E F4 49 2E A3 35 A6 41 68 A9 5 74 6D F7 98 43 B8 AD A5 DE 30 F5 C4 29 94 88 23 E6 80 F1 76 F8 C3 2E 2A 31 7E
[DEBUG][RX] : 7E A0 25 9 2 47 96 82 87 E6 E7 0 CF 16 30 0 0 9 60 3A B1 8D E8 6A 55 4 93 60 9F D3 E3 7E 8 6D 46 4C DE 38 7E
:com_method failed. 12

I am using this token : 0457 2225 3378 3700 0077

I also try to modify token variable to :
unsigned char token[20] = {0x00, 0x04, 0x05, 0x07, 0x02, 0x02, 0x02, 0x05, 0x03, 0x03, 0x07, 0x08, 0x03, 0x07, 0x00, 0x00, 0x00, 0x00, 0x07, 0x07};
but nothing changed, still got the same error.

I found the var_addOctetString function, do we need that function?

Hi Mikko,

I have tried to read the existing token using attributes no.2 (token) like below :

gxTokenGateway objToken;
cosem_init(BASE(objToken), DLMS_OBJECT_TYPE_TOKEN_GATEWAY, "0.0.19.40.0.255");
com_read(BASE(objToken), 2);
obj_toString(BASE(objToken), &data);
GXTRACE(PSTR("Ori token : "), data);
obj_clear(BASE(objToken));
free(data);

but I got return nothing :

[DEBUG][TX] : 7E A0 2D 2 47 9 54 14 1B E6 E6 0 C8 1E 30 0 0 0 2 E9 F1 77 DC 3B 13 F8 6A 86 9A C1 E3 94 5E 6F A2 B5 4D AF 8E 19 18 B3 E7 E0 A0 DD 7E
[DEBUG][RX] : 7E A0 3A 9 2 47 74 22 9D E6 E7 0 CC 2B 30 0 0 1 F3 3 CE 30 51 49 9D 84 D3 D4 A8 48 F0 C0 C1 3A 5D 7F 75 75 CE 5C 14 57 40 FD 82 29 BB 19 E 9A 96 6E CA EC E1 93 C4 C6 EF 7E
:Ori token : Index: 2 Value:

is there something I did wrong?

Hi Mikko,

Now I got the return values for the token, this is the result of com_read :

[DEBUG][TX] : 7E A0 2D 2 47 9 54 14 1B E6 E6 0 C8 1E 30 0 0 0 E 67 82 51 C2 88 F8 C2 E3 7D E 38 88 F 58 47 24 34 74 5 58 BB B7 57 36 BD E2 A9 7E
[DEBUG][RX] : 7E A0 3A 9 2 47 74 22 9D E6 E7 0 CC 2B 30 0 0 2 79 FD 61 D0 D0 CD 6E 1C FB 62 EB E4 D3 A7 C7 29 ED C5 C9 C7 82 3F 79 95 EE 20 B3 21 C2 23 B5 61 22 29 BD A4 EC E1 A1 C5 99 7E
:Ori token : 00 04 05 07 02 02 02 05 03 03 09 05 01 01 01 06 05 03 0C 05

The token I had entered before was : 0457 2225 3378 3700 0077 (I entered manually)

The token that I am using is for tamper, so I can use that token only once. Now I have made my meter in tamper conditions, so next I will enter with this new token : 1781 3034 3131 9155 8529.

So how to pass the token to com_method? Here is my code for enter the token:

gxTokenGateway objToken;
dlmsVARIANT params;
var_init(&params);
unsigned char token[10] = {0x17, 0x81, 0x30, 0x34, 0x31, 0x31, 0x91, 0x55, 0x85, 0x29};
var_addBytes(&params, token, sizeof(token));
cosem_init(BASE(objToken), DLMS_OBJECT_TYPE_TOKEN_GATEWAY, "0.0.19.40.0.255");
com_method(BASE(objToken), 1, &params);
com_read(BASE(objToken), 2);
data = bb_toHexString(&objToken.token);
GXTRACE(PSTR("Ori token : "), data);
Serial.println();
obj_clear(BASE(objToken));
free(data);

but I still failed to remove the tamper.

Hi Mikko,

The token I'm using : 1781 3034 3131 9155 8529

I have tried with several experiment below :
- unsigned char token[10] = {0x17, 0x81, 0x30, 0x34, 0x31, 0x31, 0x91, 0x55, 0x85, 0x29};
- unsigned char token[20] = {0x17, 0x81, 0x30, 0x34, 0x31, 0x31, 0x91, 0x55, 0x85, 0x29};
- unsigned char token[10] = {17, 81, 30, 34, 31, 31, 91, 55, 85, 29};
- unsigned char token[20] = {0x01, 0x07, 0x08, 0x01, 0x03, 0x00, 0x03, 0x04, 0x03, 0x01, 0x03, 0x01, 0x09, 0x01, 0x05, 0x05, 0x08, 0x05, 0x02, 0x09};

try convert to octal digit :

- unsigned char token[20] = {001, 007, 010, 001, 003, 000, 003, 004, 003, 001, 003, 001, 011, 001, 005, 005, 010, 005, 002, 011};
- unsigned char token[20] = {0x01, 0x07, 0x10, 0x01, 0x03, 0x00, 0x03, 0x04, 0x03, 0x01, 0x03, 0x01, 0x11, 0x01, 0x05, 0x05, 0x10, 0x05, 0x02, 0x11};
- unsigned char token[20] = {01, 07, 10, 01, 03, 00, 03, 04, 03, 01, 03, 01, 11, 01, 05, 05, 10, 05, 02, 11};

All results of com_method are same :
:com_method failed. 12

Hi Mikko,

I can't find the information in "Method Access Rights" tab. Here I attached the screenshot pict of my access right tab.
I have succeeded to transfer token using GXDLMSDirector by passing the token in ASCII digits. I use HLS (HighGMAC) for authentication.

Hi Mikko,

I have updated my GXDLMSDirector to the newest version. Here I attached the method access rights.
I have connected with HighGMAC using your Arduino Client example code. I can read data (voltage, current, etc) and disconnect/reconnect relay's meter using HighGMAC auth.

Hi Mikko,

Here is the code I used for disconnect relay meter :

gxDisconnectControl dc;
dlmsVARIANT params;
var_init(&params);
var_setInt8(&params, 0);
cosem_init(BASE(dc), DLMS_OBJECT_TYPE_DISCONNECT_CONTROL, "0.0.96.3.10.255");
com_method(BASE(dc), 1, &params);
obj_toString(BASE(dc), &data);
GXTRACE(PSTR("Disconnect : "), data);
obj_clear(BASE(dc));
free(data);

Sorry I dont understand how to adapt the disconnect control code to token gateway?

Hi Mikko,

I have succeeded to disconnect relay using this code below with no error :

gxDisconnectControl dc;
dlmsVARIANT params;
var_init(&params);
var_setInt8(&params, 0);
cosem_init(BASE(dc), DLMS_OBJECT_TYPE_DISCONNECT_CONTROL, "0.0.96.3.10.255");
ret = com_method(BASE(dc), 1, &params);
if (ret != 0)
{
//Show error.
GXTRACE_INT("Error :", ret);
}
obj_clear(BASE(dc));
free(data);

So, what should I do next?
I'm sure the problem is not in authentication, because the auths in Arduino code are same as I use in GXDLMSDirector.

Hi Mikko,

As the title in this forum, my problem is can't transfer token gateway. I have following your suggestion for passing the token as params, but still didn't work. Then, you suggest me try to create gxDisconnetControl, but I don't know the relationship between disconnect/reconnect and token gateway. if you don't mind, please reread my question of the problem and our conversation again from first post in this forum. Thank you Mikko.

Hi Mikko,

I have tried to read and write back with the same token with GXDLMSDirector. Here is my step-by-step :
1. First, my meter in tamper status (relay is disconnected)
2. I opened GXDLMSDirector, go to TokenGateway, go to Transfer token, then I input my token in ASCII : 30 35 37 33 37 36 32 34 32 37 37 35 35 34 38 39 30 35 35 34 (My original token : 0573 7624 2775 5489 0554)
3. After that, the message "Action accomplished" appeared, and removing tamper status (so the relay is reconnected)
4. Next, I read the token : 00 05 07 03 07 06 02 04 02 07 09 00 02 04 07 03 04 08 00 06
5. I copy that token, go to Transfer token, then paste the token
6. After that, message "Action accomplished" appears again.

Hi Mikko,

I have already tried with your Arduino Client example, but the meter not accepting the token. Maybe I did something wrong in setting 20 bytes token in params before passing that to com_method function.

For example, the token I'm using is 1781 3034 3131 9155 8529

I have tried with several experiment:
- unsigned char token[20] = {0x01, 0x07, 0x08, 0x01, 0x03, 0x00, 0x03, 0x04, 0x03, 0x01, 0x03, 0x01, 0x09, 0x01, 0x05, 0x05, 0x08, 0x05, 0x02, 0x09};

I have tried to convert token bytes to octal digit :

- unsigned char token[20] = {001, 007, 010, 001, 003, 000, 003, 004, 003, 001, 003, 001, 011, 001, 005, 005, 010, 005, 002, 011};
- unsigned char token[20] = {0x01, 0x07, 0x10, 0x01, 0x03, 0x00, 0x03, 0x04, 0x03, 0x01, 0x03, 0x01, 0x11, 0x01, 0x05, 0x05, 0x10, 0x05, 0x02, 0x11};
- unsigned char token[20] = {01, 07, 10, 01, 03, 00, 03, 04, 03, 01, 03, 01, 11, 01, 05, 05, 10, 05, 02, 11};

All results of com_method are same :
:com_method failed. 12

Hi Mikko,

I'm trying with this token now : 0571 8854 5901 9721 1241

Here's my code :

gxTokenGateway objToken;
dlmsVARIANT params;
var_init(&params);
unsigned char token[20] = {0x00, 0x05, 0x07, 0x01, 0x08, 0x08, 0x05, 0x04, 0x05, 0x09, 0x00, 0x01, 0x09, 0x07, 0x02, 0x01, 0x01, 0x02, 0x04, 0x01};
var_addBytes(&params, token, sizeof(token));
cosem_init(BASE(objToken), DLMS_OBJECT_TYPE_TOKEN_GATEWAY, "0.0.19.40.0.255");
com_method(BASE(objToken), 1, &params);
com_read(BASE(objToken), 2);
data = bb_toHexString(&objToken.token);
GXTRACE(PSTR("Ori token : "), data);
Serial.println();
obj_clear(BASE(objToken));
free(data);

Here's trace from sent bytes :

[DEBUG][TX] : 7E A0 41 2 47 9 54 97 CD E6 E6 0 CB 32 30 0 0 0 2 EA F1 77 DC 3B 13 F8 6A 86 9A C1 E0 95 92 6E D2 7D 80 47 58 6F 99 9E D9 47 C7 BD 6A 84 2F 37 3 7A DC 26 AE 6D 6D C0 60 B5 46 BC 93 89 CE 44 7E
[DEBUG][RX] : 7E A0 25 9 2 47 74 9E 43 E6 E7 0 CF 16 30 0 0 0 75 CB AB 1C 3E 80 A BD 1C 97 20 D4 9E 32 3 C5 A5 63 AA 79 7E
:com_method failed. 12

Hi Mikko,

I just sent the block cipher and authentication keys by email to [email removed] with subject "Credentials For Token Gateway Analysis" from me ([email removed])

Thank you very much for your help

Hi Mikko,

The code bb_setUInt8(data.byteArr, DLMS_DATA_TYPE_OCTET_STRING) causing an error so I edited to bb_setUInt8(&bb, DLMS_DATA_TYPE_OCTET_STRING).

After I tried, the token still didn't work to remove the tamper, but at least com_method returns 0 and words "GAGAL" (in Bahasa Indonesia) or FAILED, appears in the LCD's meter. This is what we usually find if we fail to enter the token.

Here's the hex byte trace :

[DEBUG][TX] : 7E A0 43 2 47 9 54 1F DB E6 E6 0 CB 34 30 0 0 0 2 EA F1 77 DC 3B 13 F8 6A 86 9A C1 E0 95 9B 7F D5 79 8F 4E 55 63 99 93 DC 4F CE BB 61 82 2C 34 6 79 3E 9F 7E F D6 9C 27 EC 63 45 1 38 D9 D0 40 92 7E
[DEBUG][RX] : 7E A0 2E 9 2 47 74 72 4 E6 E7 0 CF 1F 30 0 0 0 88 6E A7 A2 FD E9 B1 72 65 6F 57 CC D1 9F CC 57 E3 88 C9 E5 79 22 85 50 89 36 E9 11 67 7E

would you like to analyze again the hex trace?
Thank you Mikko

Hi Mikko,

This is solved after I convert the token to ASCII digit.
Thank you very much for your help!