Lec1) Introduction to System Programming

Application progamming = aims to produce software which provides services to the user, e.g., word processors, browsers, multi-media applications 

System programming = aims to produce software which provides services to computer hardware , disk defragmenter. The next step is writing kernel code to manage main memory , disk space management, cpu scheduling and management of I/O devices through device drivers.

numbers indicate order of control

 

lists of what we will be learning

Module 1 = Preparing your tool box

• GNU gcc and gdb
• NASM
• UNIX readelf , objdump , od , nm , ldd and ldconfig
• Creating your own Static and Dynamic libraries
• Unix make, atocnof and cmake utilities
• Unix gprof utility
• Exit handlers, electric fence and valgrind libraries
• Git

Module 2 = File , Information and Time Management

• Unix universal I/O model and File System Architecutre
• Writing your own ls ,pwd ,find , grep ,and more utilities
• Digging out information from system files
• Writing uname and who utilities
• Changing Terminal attributes
• Modifying real time using Linux OS API

Module 3 = Process Management and Scheduling

• Process identifications
• Process trees, chains, and fans
• Zombie and orphan processes
• Process groups , sessions and controlling terminals
• UNIX daemons
• System-VR3 and System-VR4 Scheduler
• Linux O(1) and CFS Scheduler
• Microsoft and Solaris Scheduler
• Changing process scheduling parameters using Linux OS API

Module 4 = UNIX IPC Tools

• Signals
• PIPES/FIFOS
• Message Queues
• Shared Memory
• Memory Mappings

Module 5 = Thread Management and Synchronization

• POSIX Thread API
• Synchronization among threads using mutex and condition variables
• Synchronization among related and unrelated processes using semaphores

Module 6 = Network Programming

• UNIX socket API
• Writing concurrent servers using

1. Multi process Model
2. Multi threaded Model
3. Non Blocking I/O using select() System call

• Managing your servers using xinet and system daemons

Module 7 = Network Security

• Buffer overflow vulnerability
• Exploiting i tusing Metasploit framework