JOS SSH server

• User-space kernel module architecture (#1 #13 #20, @MeerkatBoss)
  • Unified interface over JOS IPC for all modules
  • Kernel module processes are identified by ENV_TYPE_KERNEL env type
  • Root module (initd)
    • Parent of all modules
    • Used by other modules to spawn user processes
  • SYS_ipc_recv_from syscall can now be used to receive IPC messages from specific sender
• ACPI kernel module (#4, @MeerkatBoss)
  • Manage ACPI tables in userspace
  • SYS_map_physical_region is now a privileged syscall, that can only be used by kernel modules and file systems
• PCI kernel module (#8, @MeerkatBoss)
  • Manage PCI devices from userspace
• Signal module (#22 #26, @MeerkatBoss @egorSharapov @ArsenySamoylov)
  • Implement sending POSIX-like signals SIGALRM and SIGKILL to processes via signald kernel module
• Login shell (@egorSharapov @ArsenySamoylov)
• File system improvements
  • Fsformat script improvements (#29, @egorSharapov)
  • Separate bin/ directory for user programs (#3, @ArsenySamoylov)
  • File access rights (#19, @egorSharapov)
  • Directory support (#23, @SimonaytesYan)
  • User home directory (@ArsenySamoylov @SimonaytesYan)
• Network stack support
  • Virtio driver (#10, @foxidokun)
  • UNIX-like userspace socket (#10, @foxidokun @egorSharapov)
  • POSIX-like userspace select (#10, @MeerkatBoss)
• Tinyssh fork for JOS (@ArsenySamoylov @egorSharapov)
  • Separate repo here