User Interface

STATUS_REQ

driverstatus; // Detailed information as to the state of the

//hardware and the driver at the time of an error

3.3.6Process Request Structures

All process request structures contain the a copy of the same request header information, which is defined by the COMMON_REQ_PREAMBLE macro. The members of this header must be filled in as needed by the user prior to the issue of the user's request.

unsigned long

 

opId;

unsigned char

 

scatterBufs;

unsigned char

 

notifyFlags;

unsigned char

 

reserved;

unsigned char

 

channel;

PSEC2_NOTIFY_ROUTINE

 

notify;

PSEC2_NOTIFY_CTX

 

pNotifyCtx;

PSEC2_NOTIFY_ON_ERROR_ROUTINE

notify_on_error;

SEC2_NOTIFY_ON_ERROR_CTX

ctxNotifyOnErr;

int

 

status;

void

 

*nextReq;

opId

operation Id which identifies what type of request this is. It is normally associated with

 

a specific type of cryptographic operation, see Section 4, “Individual Request Type

 

Descriptions” for all supported request types.

scatterBufs

A bitmask that specifies which of the argued buffers are mapped through a

 

scatter-gather list. The mask is filled out via the driver's helper function

 

MarkScatterBuffer(), described in Section 3.3.7, “Scatter-Gather Buffer

 

Management.”

notifyFlags

If a POSIX-style signal handler will be responsible for request completion notification,

 

then it can contain ORed bits of NOTIFY_IS_PID and/or

 

NOTIFY_ERROR_IS_PID, signifying that the notify or notify_on_error

 

pointers are instead the process ID's (i.e. getpid()) of the task requesting a signal

 

upon request completion.

channel

identifies the channel to be used for the request. It exists for legacy compatibility

 

reasons, and is no longer useful for SEC2.

notify

pointer to a notification callback routine that will be called when the request has

 

completed successfully. May instead be a process ID if a user-state signal handler will

 

flag completion. Refer back to notifyFlags for more info.

pNotifyCtx

pointer to context area to be passed back through the notification routine.

SEC 2.0 Reference Device Driver User’s Guide, Rev. 0

Freescale Semiconductor

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

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Freescale Semiconductor SEC2SWUG specifications Process Request Structures, Statusreq
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SEC2SWUG specifications

Freescale Semiconductor, a prominent player in the semiconductor industry, has made significant strides in developing robust solutions tailored for the automotive and industrial sectors. One such innovation is the SEC2SWUG (Security Configuration to Software User Guide), a comprehensive framework designed to enhance security protocols across various applications.

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Another key characteristic of SEC2SWUG is its user-friendliness. Freescale has focused on creating a resource that not only provides theoretical knowledge but also practical guidelines, making it easier for developers to integrate security protocols into their projects. The guide features clear annotations, example code snippets, and troubleshooting tips, which enhance the developer experience and facilitate a smoother transition from concept to execution.

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In conclusion, Freescale Semiconductor's SEC2SWUG is a vital tool for engineers and developers looking to embed security into their applications. With its focus on advanced technologies and user-centric design, the SEC2SWUG stands at the forefront of secure software development, addressing the critical need for safety in interconnected systems.
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