Critical changes in version 1.4

Due to modifications made to SDK components in version 1.4, you may need to make changes to the application code that was developed using KasperskyOS Community Edition version 1.3 before using that code with KasperskyOS Community Edition version 1.4.

The following critical changes were made to SDK components in version 1.4.

General changes

• The uboot bootloader now uses the booti command instead of the bootelf command.
• QEMU support has been removed from the SDK for hardware platforms. QEMU has been moved to a separate SDK. It is not possible to build a kos-qemu-image in the SDK for hardware platforms.
• The deprecated wait_for_network() function has been removed from the kos_net.h header file, and the wait_for_iface() function must be used instead.
• The header file netinet6/in6.h has been removed. All IPv6 definitions have been moved to the standard netinet/in.h.
• The GetItemDigest() function has been removed from the PackageManager component API.
• The composition of the performance counters has been changed. The following counters have been removed:
  • task.<PID>.time.ksm.execute
  • task.<PID>.time.ksm.terminate
  • task.<PID>.time.ksm.request
  • task.<PID>.time.ksm.response
  • task.<PID>.time.ksm.security
  • task.<PID>.services.<service>.calls
  • task.<PID>.thread.<id>.time.ksm.execute
  • task.<PID>.thread.<id>.time.ksm.terminate
  • task.<PID>.thread.<id>.time.ksm.request
  • task.<PID>.thread.<id>.time.ksm.response
  • task.<PID>.thread.<id>.time.ksm.security
  • task.<PID>.thread.<id>.services.<service>.calls
  • time.ksm.*
  • mem.high.total
  • mem.high.free

Changes in the API of the DCM system program

Due to the addition of support for searching and connecting to CDL in DCM, the following functions have been removed:

• DcmSetSubscription()
• DcmConnect()
• DcmAccept()

The following functions must be used instead:

• DcmSubscribeToEndpoints()
• DcmConnectToEndpoint()
• DcmAcceptEndpointConnection()

The DCM system program now statically connects to all processes started by the Einit program. The security policies of the solution and the init.yaml file must be edited.

Changes to the API of the TLS Terminator system program

• The TLS Terminator component no longer processes the TLS_SSLIZE option.
• The TLS Terminator component does not support temporary socket functionality.
• The TLS Terminator component does not support the server_rsa_min_size argument.
• Arguments that let you set a restriction separately for different types of certificates have been added.

Changes in the libkos library API

• The following functions have been removed from the thread_api.h API:
  • KnThreadAttach()
  • KnThreadCreate()
  • KnThreadGetPriority()
  • KnThreadSetPriority()
  • KnThreadSuspend()
  • KnThreadResume()
  • KnThreadTerminate()
  • KnThreadGetInfo()
  • KnThreadWait()
  • KnThreadGetAffinity()
  • KnThreadSetAffinity()
  • KnThreadGetSchedPolicy()
  • KnThreadSetSchedPolicy()
  • KnThreadSetTls()
  • KosThreadTlsSet()
  • KosThreadCallbackRegister()
  • KosThreadCallbackUnregister()
• The semantics of the KnThreadTerminateByHandle() and KosThreadTerminate() functions have been changed.

  The correct point to stop is now the Suspend state of the thread. This state is possible either when a thread is created with the ThreadFlagCreateSuspended flag or when KnThreadSuspendCurrent() is called.

• The Thread::Attach core endpoint method always returns rcUnimplemented.
• The startRoutine argument has been removed from the KnThreadCreateByHandle() function. This makes the thread entry point private for libkos and it can no longer be redefined by the user.
• The kos/aslr.h header file has been removed.
• The kos/time.h header file has been removed.
• The hal/cputicks.h header file has been removed.

Changes in the API for driver development

• A security interface has been added to the KDF library. Security policies must be edited.
• The DNet driver has been refined: the API has been modified, and it now uses the KDF library.
• The compatible IO API has been removed.
• The KdfRegisterDeviceEx() function has been removed.

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