Create

Purpose

Creates a process.

Parameters

• [in] name – process name.
• [in] eiid – process class name.
• [in] path – name of the executable file in ROMFS.
• [in] stackSize – size of the process stack in bytes.
• [in] priority – value defining the priority of the initial thread.
• [in] flags – flags defining the parameters for creating the process.
• [out] child – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the created process.
• [out] rc – return code.

Allows the following:

• Create a process that will be privileged from the perspective of the solution security policy (indicating the name of the process class with privileges).
• Reserve a process name so that another process with this name cannot be created.
• Create a process that will cause the operating system to stop if an unhandled exception occurs.
• Load code from an executable file into process memory for subsequent execution of that code.
• Exhaust RAM by creating a multitude of processes.
• Exhaust the kernel memory by creating a multitude of objects within it.

LoadSeg

Purpose

Loads a program image segment into process memory from the MDL buffer.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [in] mdl – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the MDL buffer containing the program image segment.
• [in] segAttr – structure containing the parameters for loading a program image segment.
• [out] rc – return code.
• [out] retaddr – base address of the process virtual memory region where the program image segment is loaded.

Allows code to be loaded into process memory for subsequent execution of that code.

SetEntry

Purpose

Defines a process entry point.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [in] entry – entry point of the initial thread of the process.
• [out] rc – return code.

Creates conditions for executing code loaded into process memory.

LoadElfSyms

Purpose

Loads the character table and string table from MDL buffers into process memory.

MDL buffers contain a character table and string table from non-loadable segments of the ELF file. These tables are necessary for receiving stack backtrace data (information about call stacks).

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [in] relocBase – base address for loading the program image.
• [in] symMdl – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the MDL buffer containing the character table.
• [in] symSegAttr – structure containing the parameters for loading the character table.
• [in] symSize – size of the character table in bytes.
• [in] strMdl – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the MDL buffer containing the string table.
• [in] strSegAttr – structure containing the parameters for loading the string table.
• [in] strSize – size of the string table in bytes.
• [out] rc – return code.

N/A

SetEnv

Purpose

Loads the parameters of a process into its memory.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [in] env – sequence containing process parameters.
• [out] rc – return code.

Allows the kernel memory to be used up by creating a multitude of objects within it.

FreeSelfEnv

Purpose

Frees the memory of the current process occupied by parameters that were loaded by the SetEnv method.

Parameters

• [out] rc – return code.

N/A

Resume

Purpose

Starts a process.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [out] rc – return code.

Allows the following:

• Execute code loaded into process memory.
• Start a multitude of previously created processes to reduce the computing resources available to other processes (it is recommended to monitor the priority of the initial thread when the Create method is called).

Exit

Purpose

Terminates the current process.

Parameters

• [in] status – exit code of the current process.
• [out] rc – return code.

N/A

Terminate

Purpose

Terminates a process.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [out] rc – return code.

Allows another process to be terminated if its handle is available. (The handle permissions mask must allow termination of the process.)

GetExitInfo

Purpose

Lets you get information about a terminated process.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the terminated process.
• [out] status – process exit code.
• [out] info – union containing information about the terminated process.
• [out] rc – return code.

N/A

GetThreadContext

Purpose

Lets you receive the context of a thread that is part of a process that has been frozen due to an unhandled exception.

When a process is frozen, execution of the process stops but its resources are not freed. Therefore, data on this process can be collected.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process that is in a frozen state.
• [in] index – thread index. It is used to enumerate threads. Enumeration starts with zero. A thread in which an unhandled exception occurred has a zero index.
• [out] context – sequence containing the thread context.
• [out] rc – return code.

Lets you disrupt isolation of a process that has been frozen due to an unhandled exception. For example, the received thread context can contain the values of variables.

GetNextVmRegion

Purpose

Lets you get information about the virtual memory region belonging to a process that has been frozen due to an unhandled exception.

When a process is frozen, execution of the process stops but its resources are not freed. Therefore, data on this process can be collected.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process that is in a frozen state.
• [in] after – address that is followed by the virtual memory region.
• [out] next – base address of the virtual memory region.
• [out] size – size of the virtual memory region in bytes.
• [out] flags – flags indicating the parameters of the virtual memory region.
• [out] handle – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the MDL buffer mapped to a virtual memory region.
• [out] rc – return code.

Lets you disrupt isolation of a process that has been frozen due to an unhandled exception. Process isolation is disrupted due to the opened access to the process memory region.

TerminateAfterFreezing

Purpose

Terminates a process that has been frozen due to an unhandled exception.

When a process is frozen, execution of the process stops but its resources are not freed. Therefore, data on this process can be collected. A frozen process cannot be restarted. It can only be terminated.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process that is in a frozen state.
• [out] rc – return code.

Allows termination of a process that has been frozen due to an unhandled exception. This will not allow collection of data about this process for diagnostic purposes.

GetName

Purpose

Lets you get the name of the current process.

Parameters

• [out] name – process name.
• [out] rc – return code.

N/A

GetPath

Purpose

Lets you get the name of the executable file that was used to start the current process.

Parameters

• [out] path – name of the executable file in ROMFS.
• [out] rc – return code.

N/A

GetInitialThreadPriority

Purpose

Lets you get the priority of the initial thread of a process.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [out] priority – value indicating the priority of the initial thread.
• [out] rc – return code.

N/A

SetInitialThreadPriority

Purpose

Defines the priority of the initial thread of a process.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [in] priority – value defining the priority of the initial thread.
• [out] rc – return code.

Allows the priority of the initial thread of a process to be elevated to reduce the CPU time available to all other threads, including from other processes.

It is recommended to monitor the priority of an initial thread.

GetTasksList

Purpose

Lets you get information about existing processes.

Parameters

• [out] notice – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the notification receiver that is configured to receive notifications regarding the termination of processes.
• [out] strings – sequence containing the parameters of processes.
• [out] sids – sequence containing the security IDs of processes (the SID of each process).
• [out] count – number of processes.
• [out] rc – return code.

Allows the kernel memory to be used up by creating a multitude of objects within it.

SetInitialThreadSchedPolicy

Purpose

Defines the scheduler class and priority of the initial thread of a process.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [in] policy – value defining the scheduler class of the initial thread.
• [in] priority – value defining the priority of the initial thread.
• [in] params – union containing parameters of the scheduler class of the initial thread.
• [out] rc – return code.

Allows the following:

• Convert the initial thread of a process into a real-time thread that takes up all the CPU time from all other threads, including from other processes (it is recommended to monitor the scheduler class of an initial thread).
• Elevate the priority of the initial thread of a process to reduce the CPU time available to all other threads, including from other processes (it is recommended to monitor initial thread priority).

ReseedAslr

Purpose

Defines the initial vector in the random number generator for ASLR support.

Affects the results from calling the Allocate method of the virtual memory endpoint in the context of the defined process.

Parameters

• [in] task – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the process.
• [in] seed – sequence containing the initial vector for random number generation.
• [out] rc – return code.

N/A