c2957d8761
Kernel: PS/2 device automatically sends commands when appended
2024-01-04 12:04:45 +02:00
891ced4da2
Kernel: Move PS2Device to its own file
2024-01-04 12:04:45 +02:00
8f8d6bddc0
Kernel: Unify PS2Device to handle commands instead of inherited
2024-01-04 12:04:45 +02:00
d2d12d5281
Kernel: validate_{string,pointer}_access now return ErrorOr<void>
...
Now that signals are only processed when returning to userspace,
address validation has to do an early return.
2024-01-03 23:53:04 +02:00
0ba278041b
Kernel: Start exec by loading the ELF file. It might not exist...
2024-01-03 23:50:02 +02:00
001e95f973
Kernel: Optimize sse saving/loading
...
Only save and load sse when new thread is trying to execute sse
instruction. There is no need to do that every time we enter kernel.
2024-01-03 02:06:49 +02:00
9fa13079f2
Kernel: Implement supplementary groups
...
This code has very ugly file parsing code. I have to create API
for reading files line by line in kernel space...
This allows users to open framebuffer/input files without root.
Mounting has to be moved to userspace soon. It makes no sense to
hard code permissions for every (device) file.
2024-01-02 23:24:32 +02:00
96d831c31a
Kernel/LibC/Userspace: Implement chown and set tty owner on login
2024-01-02 22:19:38 +02:00
951eac6bfa
Kernel: Implement hacky non-block read for ps2 keyboard
2023-12-19 00:20:46 +02:00
2e858fddb5
Kernel: Remove obsolete Scheduler::is_valid_tid()
...
This function was used when processes could die at any point in time.
Now that processes can only die in known spots, we can be sure they
are not holding any locks. This allows much more performant locking.
2023-12-07 13:26:42 +02:00
12474addda
Kernel: Make Inodes use the new lock
...
Also remove old lock from TTY since it can just use the one Inode
already has.
2023-12-07 13:19:12 +02:00
7c25e4ce5a
Kernel: Implement RecursivePrioritySpinLock
...
This locks won't allow locking from userspace thread if there is
kernel thread waiting to lock this.
2023-12-07 13:18:21 +02:00
1ac831d4b1
Kernel: Add API to block on semaphore until unblock or EINTR
2023-12-06 16:13:07 +02:00
534969df32
Kernel: Scheduler::unblock_thread() wakes sleeping threads
2023-12-06 16:12:37 +02:00
1c78671078
Kernel: Rework all signal code
...
Signal handling code was way too complex. Now everything is
simplified and there is no need for ThreadBlockers.
Only complication that this patch includes is that blocking syscalls
have to manually be made interruptable by signal. There might be some
clever solution to combat this is make this happen automatically.
2023-12-06 13:02:17 +02:00
cdcc36efde
Kernel: Remove unnecessary raise syscall
2023-12-06 13:00:45 +02:00
336daa2cc5
Kernel: Add helper for checking whether segment is from userspace
2023-12-06 12:57:13 +02:00
cc572af390
Kernel: Implement mmaping for framebuffer device
2023-11-28 23:51:56 +02:00
4a87d6052b
Kernel: Add API for implementing mmappable devices
2023-11-28 23:50:49 +02:00
09b7cb2f33
Kernel/LibC: Implement pread()
2023-11-28 23:47:30 +02:00
60e755210c
Kernel/LibC: Implement very basic msync
2023-11-22 22:44:06 +02:00
ab9954fe73
Kernel: Delete the now obsolete VesaTerminalDriver
2023-11-22 21:59:11 +02:00
fd18071975
Kernel: Implement TerminalDriver for Framebuffer device
...
Use this new FramebufferTerminalDriver for terminal instead of the
old VesaTerminalDriver. Only drawback with this is that framebuffer
device can only be intialized after DevFS is initialized.
2023-11-22 21:57:17 +02:00
b88a7e0c6b
Kernel: Add more APIs to FramebufferDevice
2023-11-22 21:56:27 +02:00
cdf53f33f6
Kernel: Implement basic framebuffer device
...
This allows exposing framebuffer to userspace
2023-11-22 20:34:41 +02:00
bc5e8add19
Kernel: Make Ext2 filesystem use BlockDevice instead of Partition
2023-11-21 15:20:24 +02:00
7a8fd6d04a
Kernel: TmpFS doesn't mark any functions as final
...
I didn't think these would be overloaded, but they are
2023-11-21 15:19:34 +02:00
b749963b62
Kernel: Add common {read,write}_blocks() api to BlockDevice
2023-11-21 15:19:07 +02:00
6a068fb9f9
Kernel: Move Partition to its own file
2023-11-21 15:16:04 +02:00
cadb56d8ba
Kernel: ProcFS inodes reflect processes ruid/rgid
...
setgid/setuid did not change the permissions of procfs inodes. This
made Shell launched by init not appear in meminfo.
2023-11-18 14:26:44 +02:00
c9e9cfd361
Bootloader: Implement VESA video mode query and pass it to kernel
...
Kernel now gets framebuffer from bootloader. Framebuffer dimensions
and bpp are hardcoded in bootloader, but will probably be read from
config file at some point.
2023-11-17 22:45:35 +02:00
cb5a5d3ed1
Kernel/Bootloader: banan-os can now be booted with my bootloader :D
2023-11-17 20:33:02 +02:00
84040e64b8
Kernel: Don't use multiboot2 explicitly. Parse it to common structure
...
This allows support of multiple different bootloaders
2023-11-17 18:54:59 +02:00
c084ce8b01
Kernel/LibC: Implement readlink and readlinkat
2023-11-11 23:16:52 +02:00
fda0dfec30
Kernel: Make TmpFS enforce max page count.
2023-11-07 16:13:21 +02:00
d6ae1bcf36
Kernel: Remove now obsolete RamFS
...
Everything is using now the better TmpFS which uses physical pages
for page allocation instead of the static kmalloc memory.
2023-11-07 16:07:11 +02:00
5044810451
Kernel: Make DevFS use the new and better TmpFS instead of RamFS
2023-11-07 16:05:05 +02:00
147cd93ed3
Kernel: Add method to TmpFS for looping over all (cached) inodes
2023-11-07 16:04:34 +02:00
07b5920f3f
Kernel: Lock TmpFS in all its methods
2023-11-07 16:03:52 +02:00
2bcf934389
Kernel: Implement symlinks to TmpFS
2023-11-07 15:59:50 +02:00
1405712f26
Kernel: Make PS/2 keyboard wait until interrupts are enabled
2023-11-07 15:58:50 +02:00
885ed218fa
Kernel: Make unlinking from /proc always fail with EPERM
2023-11-07 02:40:27 +02:00
06e176e6b9
Kernel: Make ProcFS use the new TmpFS internally
2023-11-07 02:35:44 +02:00
b7771e95ac
Kernel: Implement TmpFS Inode unlinking and deletion
2023-11-06 21:49:12 +02:00
3e33fc156b
Kernel: TmpFS directory inodes now iterate over only valid entries
2023-11-06 21:41:51 +02:00
c3ed700324
Kernel: Implement TmpFS inode chmod
2023-11-06 20:11:34 +02:00
ba2f09a4e6
Kernel: Cleanup TmpFS code and block access doesn't require allocs
...
TmpFS blocks are now accessed with a simple wrapper
2023-11-06 20:07:09 +02:00
c92c1b8e2b
Kernel: TmpInode blocks are on demand allocated
2023-11-06 10:44:37 +02:00
c27d20abd8
Kernel: Implement read/write/truncate for TmpFileInode
2023-11-05 02:28:43 +02:00
99d7b0917d
Kernel: Start work on proper TmpFS in Heap instead of kmalloc memory
2023-11-04 18:18:45 +02:00
