KasperskyOS Community Edition 1.1
- What's new
- About KasperskyOS Community Edition
- Overview of KasperskyOS
- Getting started
- Development for KasperskyOS
- Starting processes
- File systems and network
- Contents of the VFS component
- Creating an IPC channel to VFS
- Building a VFS executable file
- Merging a client and VFS into one executable file
- Overview: arguments and environment variables of VFS
- Mounting a file system at startup
- Using VFS backends to separate file calls and network calls
- Writing a custom VFS backend
- IPC and transport
- KasperskyOS API
- libkos library
- Overview of the libkos library
- Memory
- Memory allocation
- Threads
- KosThreadCallback()
- KosThreadCallbackRegister()
- KosThreadCallbackUnregister()
- KosThreadCreate()
- KosThreadCurrentId()
- KosThreadExit()
- KosThreadGetStack()
- KosThreadOnce()
- KosThreadResume()
- KosThreadSleep()
- KosThreadSuspend()
- KosThreadTerminate()
- KosThreadTlsGet()
- KosThreadTlsSet()
- KosThreadWait()
- KosThreadYield()
- Handles
- Notifications
- Processes
- Dynamically created channels
- Synchronization primitives
- KosCondvarBroadcast()
- KosCondvarDeinit()
- KosCondvarInit()
- KosCondvarSignal()
- KosCondvarWait()
- KosCondvarWaitTimeout()
- KosEventDeinit()
- KosEventInit()
- KosEventReset()
- KosEventSet()
- KosEventWait()
- KosEventWaitTimeout()
- KosMutexDeinit()
- KosMutexInit()
- KosMutexInitEx()
- KosMutexLock()
- KosMutexLockTimeout()
- KosMutexTryLock()
- KosMutexUnlock()
- KosRWLockDeinit()
- KosRWLockInit()
- KosRWLockRead()
- KosRWLockTryRead()
- KosRWLockTryWrite()
- KosRWLockUnlock()
- KosRWLockWrite()
- KosSemaphoreDeinit()
- KosSemaphoreInit()
- KosSemaphoreSignal()
- KosSemaphoreTryWait()
- KosSemaphoreWait()
- KosSemaphoreWaitTimeout()
- DMA buffers
- IOMMU
- I/O ports
- IoReadIoPort8(), IoReadIoPort16(), IoReadIoPort32()
- IoReadIoPortBuffer8(), IoReadIoPortBuffer16(), IoReadIoPortBuffer32()
- IoWriteIoPort8(), IoWriteIoPort16(), IoWriteIoPort32()
- IoWriteIoPortBuffer8(), IoWriteIoPortBuffer16(), IoWriteIoPortBuffer32()
- KnIoPermitPort()
- KnRegisterPort8(), KnRegisterPort16(), KnRegisterPort32()
- KnRegisterPorts()
- Memory-mapped I/O (MMIO)
- Interrupts
- Deallocating resources
- Time
- Queues
- Memory barriers
- Receiving information about CPU time and memory usage
- Sending and receiving IPC messages
- POSIX support
- MessageBus component
- Return codes
- libkos library
- Building a KasperskyOS-based solution
- Developing security policies
- Formal specifications of KasperskyOS-based solution components
- Describing a security policy for a KasperskyOS-based solution
- General information about a KasperskyOS-based solution security policy description
- PSL language syntax
- Describing the global parameters of a KasperskyOS-based solution security policy
- Including PSL files
- Including EDL files
- Creating security model objects
- Binding methods of security models to security events
- Describing security audit profiles
- Describing and performing tests for a KasperskyOS-based solution security policy
- PSL data types
- Examples of binding security model methods to security events
- Example descriptions of basic security policies for KasperskyOS-based solutions
- Example descriptions of security audit profiles
- Example descriptions of tests for KasperskyOS-based solution security policies
- KasperskyOS Security models
- Pred security model
- Bool security model
- Math security model
- Struct security model
- Base security model
- Regex security model
- HashSet security model
- StaticMap security model
- StaticMap security model object
- StaticMap security model init rule
- StaticMap security model fini rule
- StaticMap security model set rule
- StaticMap security model commit rule
- StaticMap security model rollback rule
- StaticMap security model get expression
- StaticMap security model get_uncommited expression
- Flow security model
- Mic security model
- Methods of KasperskyOS core endpoints
- Virtual memory endpoint
- I/O endpoint
- Threads endpoint
- Handles endpoint
- Processes endpoint
- Synchronization endpoint
- File system endpoints
- Time endpoint
- Hardware abstraction layer endpoint
- XHCI controller management endpoint
- Audit endpoint
- Profiling endpoint
- I/O memory management endpoint
- Connections endpoint
- Power management endpoint
- Notifications endpoint
- Hypervisor endpoint
- Trusted Execution Environment endpoints
- IPC interrupt endpoint
- CPU frequency management endpoint
- Security patterns for development under KasperskyOS
- Appendices
- Additional examples
- hello example
- echo example
- ping example
- net_with_separate_vfs example
- net2_with_separate_vfs example
- embedded_vfs example
- embed_ext2_with_separate_vfs example
- multi_vfs_ntpd example
- multi_vfs_dns_client example
- multi_vfs_dhcpcd example
- mqtt_publisher (Mosquitto) example
- mqtt_subscriber (Mosquitto) example
- gpio_input example
- gpio_output example
- gpio_interrupt example
- gpio_echo example
- koslogger example
- pcre example
- messagebus example
- I2c_ds1307_rtc example
- iperf_separate_vfs example
- Uart example
- spi_check_regs example
- barcode_scanner example
- perfcnt example
- Additional examples
- Licensing the application
- Data provision
- Information about third-party code
- Trademark notices
messagebus example
This example demonstrates use of the MessageBus component in KasperskyOS.
In this example, the Publisher, SubscriberA and SubscriberB programs use the MessageBus component to exchange messages.
The MessageBus component implements the message bus. The Publisher program is the publisher that transfers messages to the bus. The SubscriberA and SubscriberB programs are the subscribers that receive messages from the bus.
The example also demonstrates the use of various virtual file systems (VFS) in a single solution. The example uses different VFS to access the functions for working with the file system and functions for working with the network:
- The
VfsNetprogram is used for working with the network. - The
VfsRamfsandVfsSdCardFsprograms are used for working with the file system.
The kl.Ntpd program is included in KasperskyOS Community Edition and is an implementation of an NTP client, which gets time parameters from external NTP servers in the background and passes them to the KasperskyOS kernel.
The kl.rump.Dhcpcd program is included in KasperskyOS Community Edition and is an implementation of a DHCP client, which gets the parameters of network interfaces from an external DHCP server in the background and passes them to the virtual file system.
The CMake system, which is included with KasperskyOS Community Edition, is used to build and run the example.
Example files
The code of the example and build scripts are available at the following path:
/opt/KasperskyOS-Community-Edition-<version>/examples/messagebus
Building and running example
See Building and running examples section.