SEC 2.0 Reference Device Driver User’s Guide, Rev. 0
36
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Freescale Semiconductor
Sample Code
unsigned long ivBytes;
unsigned char *ivData;
unsigned long HeaderBytes;
unsigned long inBytes;
unsigned char *inData;
unsigned long ROCBytes;
unsigned long cryptDataBytes;
unsigned char *cryptDataOut;
unsigned long digestBytes;
unsigned char *digestData;
unsigned long outIvBytes;
unsigned char *outIvData;
NUM_SRTP_DESC
defines the number of descriptors within the
DPD_SRTP_GROUP
that use this request.
DPD_SRTP_GROUP
(0x8500) defines the group for all descriptors within this request.
5
Sample Code
The following sections provide sample codes for DES and IPSec.
5.1 DES Sample
/* define the User Structure */
DES_LOADCTX_CRYPT_REQ desencReq;
...
/* fill the User Request structure with appropriate pointers */
desencReq.opId = DPD_TDES_CBC_ENCRYPT_SA_LDCTX_CRYPT ;
desencReq.channel = 0; /* dynamic channel */
desencReq.notify = (void*) notifyDes; /* callback function */
desencReq.notify_on_error = (void*) notifyDes; /* callback in case of
errors only */
Table 30.
SRTP_REQ
Valid Descriptors (opId)
Descriptors Value
Function
Description
DPD_SRTP_OUTBOUND
0x8500
Process an outbound SRTP packet
DPD_SRTP_INBOUND
0x8501
Process an inbound SRTP packet
