> For the complete documentation index, see [llms.txt](https://sandbox-docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sandbox-docs.verifone.com/adk-5.0-programmers-guide/readme/files/dir_44d926a17fc606d3c25449ba60427c63/dir_048f823fee1bfb22502a8732b9a001aa/vcl__ser_8h.md).

# vcl\_ser.h

[Macros](#define-members) | [Functions](#func-members)

`#include "csdcontainer.h"` `#include "`[sec/libsec.h](/adk-5.0-programmers-guide/libsec_8h_source.md)`"`

Include dependency graph for vcl\_ser.h:

![](/files/303tEc1sZ38DRUC2uAwr)

This graph shows which files directly or indirectly include this file:

![](/files/c0gdVpqRkch9YVnIUQl6)

[Go to the source code of this file.](/adk-5.0-programmers-guide/vcl__ser_8h_source.md)

|         |                                                                                                                       |
| ------- | --------------------------------------------------------------------------------------------------------------------- |
| Macros  |                                                                                                                       |
| #define | [CLA\_VCL](#a23b96d4db7f9fc006bbde013693be6e9)   0x28                                                                 |
|         | <p>Class for VCL commands. <a href="#a23b96d4db7f9fc006bbde013693be6e9">More...</a><br></p>                           |
| #define | [INS\_VCL\_MSG\_REGISTART\_SRED\_REQ](#aab12a07d994fb440092bb014a8a32346)   0x00                                      |
|         | <p>Turn on Encryption in SRED mode. <a href="#aab12a07d994fb440092bb014a8a32346">More...</a><br></p>                  |
| #define | [INS\_VCL\_MSG\_STATUS\_REQUEST](#a12e57ffa62016cf689e247dc71babb83)   0x01                                           |
|         | <p>Get VCL's current status. <a href="#a12e57ffa62016cf689e247dc71babb83">More...</a><br></p>                         |
| #define | [INS\_VCL\_MSG\_ADVANCE\_DDK](#a21eb6707e39ccf673708ca0dcdfe3091)   0x02                                              |
|         | <p>Advance to next derived key. <a href="#a21eb6707e39ccf673708ca0dcdfe3091">More...</a><br></p>                      |
| #define | [INS\_VCL\_MSG\_EPARMS\_REQUEST](#a2c95212e9eb1c730247a166f9d191eef)   0x03                                           |
|         | <p>Get eParms from VCL. <a href="#a2c95212e9eb1c730247a166f9d191eef">More...</a><br></p>                              |
| #define | [INS\_VCL\_MSG\_DIAG\_QUERY](#a145b342de0e8ad187675a464f7a73c03)   0x06                                               |
|         | <p>Diag query. <a href="#a145b342de0e8ad187675a464f7a73c03">More...</a><br></p>                                       |
| #define | [INS\_VCL\_MSG\_DERIV\_QUERY](#a3e0786e6b404dc69cdc7823e73ad0a5c)   0x07                                              |
|         | <p>Derive data query. <a href="#a3e0786e6b404dc69cdc7823e73ad0a5c">More...</a><br></p>                                |
| #define | [INS\_VCL\_MSG\_OVERRIDE\_MSG\_QUERY](#ae32ce12f910cb6b405505b34da87ccc0)   0x08                                      |
|         | <p>Request the queued VCL Override Command Response. <a href="#ae32ce12f910cb6b405505b34da87ccc0">More...</a><br></p> |
| #define | [INS\_VCL\_MSG\_KSN\_REQ](#ad3ae7aa355c3a6851cadb280c8f1fd1d)   0x09                                                  |
|         | <p>KSN request. <a href="#ad3ae7aa355c3a6851cadb280c8f1fd1d">More...</a><br></p>                                      |
| #define | [INS\_VCL\_MSG\_KMAILIN\_REQUEST](#a9fec4a51efd591ca5caad365b3f8e345)   0x0A                                          |
|         | <p>KMAILIN request (VOS3 only) <a href="#a9fec4a51efd591ca5caad365b3f8e345">More...</a><br></p>                       |

|           |                                                                                                                                                                                                    |
| --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Functions |                                                                                                                                                                                                    |
| void      | [handleVcl](#ad02af29750575b39f81961596d4c4f8e) (unsigned short msgBufSize, unsigned char \*msg, unsigned short msgSize, unsigned short rspBufSize, unsigned char \*rsp, unsigned short \*rspSize) |

### MacroDefinition Documentation <a href="#macro-definition-documentation" id="macro-definition-documentation"></a>

### CLA\_VCL <a href="#a23b96d4db7f9fc006bbde013693be6e9" id="a23b96d4db7f9fc006bbde013693be6e9"></a>

\#define CLA\_VCL   0x28

Class for VCL commands.

### INS\_VCL\_MSG\_ADVANCE\_DDK <a href="#a21eb6707e39ccf673708ca0dcdfe3091" id="a21eb6707e39ccf673708ca0dcdfe3091"></a>

\#define INS\_VCL\_MSG\_ADVANCE\_DDK   0x02

Advance to next derived key.

### INS\_VCL\_MSG\_DERIV\_QUERY <a href="#a3e0786e6b404dc69cdc7823e73ad0a5c" id="a3e0786e6b404dc69cdc7823e73ad0a5c"></a>

\#define INS\_VCL\_MSG\_DERIV\_QUERY   0x07

Derive data query.

### INS\_VCL\_MSG\_DIAG\_QUERY <a href="#a145b342de0e8ad187675a464f7a73c03" id="a145b342de0e8ad187675a464f7a73c03"></a>

\#define INS\_VCL\_MSG\_DIAG\_QUERY   0x06

Diag query.

### INS\_VCL\_MSG\_EPARMS\_REQUEST <a href="#a2c95212e9eb1c730247a166f9d191eef" id="a2c95212e9eb1c730247a166f9d191eef"></a>

\#define INS\_VCL\_MSG\_EPARMS\_REQUEST   0x03

Get eParms from VCL.

### INS\_VCL\_MSG\_KMAILIN\_REQUEST <a href="#a9fec4a51efd591ca5caad365b3f8e345" id="a9fec4a51efd591ca5caad365b3f8e345"></a>

\#define INS\_VCL\_MSG\_KMAILIN\_REQUEST   0x0A

KMAILIN request (VOS3 only)

### INS\_VCL\_MSG\_KSN\_REQ <a href="#ad3ae7aa355c3a6851cadb280c8f1fd1d" id="ad3ae7aa355c3a6851cadb280c8f1fd1d"></a>

\#define INS\_VCL\_MSG\_KSN\_REQ   0x09

KSN request.

### INS\_VCL\_MSG\_OVERRIDE\_MSG\_QUERY <a href="#ae32ce12f910cb6b405505b34da87ccc0" id="ae32ce12f910cb6b405505b34da87ccc0"></a>

\#define INS\_VCL\_MSG\_OVERRIDE\_MSG\_QUERY   0x08

Request the queued VCL Override Command Response.

### INS\_VCL\_MSG\_REGISTART\_SRED\_REQ <a href="#aab12a07d994fb440092bb014a8a32346" id="aab12a07d994fb440092bb014a8a32346"></a>

\#define INS\_VCL\_MSG\_REGISTART\_SRED\_REQ   0x00

Turn on Encryption in SRED mode.

### INS\_VCL\_MSG\_STATUS\_REQUEST <a href="#a12e57ffa62016cf689e247dc71babb83" id="a12e57ffa62016cf689e247dc71babb83"></a>

\#define INS\_VCL\_MSG\_STATUS\_REQUEST   0x01

Get VCL's current status.

### FunctionDocumentation <a href="#function-documentation" id="function-documentation"></a>

### handleVcl() <a href="#ad02af29750575b39f81961596d4c4f8e" id="ad02af29750575b39f81961596d4c4f8e"></a>

void handleVcl

Dispatch function to handle different VCL commands

**Parameters**

\[in] **msgBufSize** size of the input message buffer \[in] **msg** pointer to the input message buffer \[in] **msgSize** size of the input message \[in] **rspBufSize** maximum size of the response buffer \[in,out] **rsp** pointer to the response buffer \[in,out] **rspSize** pointer to the response message size


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