Bananymous
198dde8365
Kernel: Add klibc for kernel
...
Now building same source as libc is not needed and libc doesn't
have to do hacks to allow kernel compilation
2024-02-14 15:00:04 +02:00
Bananymous
b165340662
Kernel: Don't use strcat in kernel code
2024-02-14 14:59:13 +02:00
Bananymous
00662bad46
Kernel: Rewrite HPET code
...
Now the set timer frequency actually works... :D
2024-02-13 17:59:48 +02:00
Bananymous
2ab3eb4109
Kernel: Fix bugs in select
...
Unix domain socket is now select readable when it has pending
connection
2024-02-12 23:46:27 +02:00
Bananymous
9314528b9b
Kernel: Improve syscall handling
...
Syscalls are now called from a list of function pointers
2024-02-12 21:51:11 +02:00
Bananymous
3fc1edede0
Kernel/LibC: Implement super basic select
...
This does not really even block but it works... :D
2024-02-12 17:26:33 +02:00
Bananymous
f50b4be162
Kernel: Cleanup TCP code
2024-02-12 15:44:40 +02:00
Bananymous
435636a655
Kernel: Implement super simple TCP stack
...
No SACK support and windows are fixed size
2024-02-12 04:45:42 +02:00
Bananymous
ba06269b14
Kernel: Move on_close_impl from network socket to udp socket
2024-02-12 04:45:42 +02:00
Bananymous
be01ccdb08
Kernel: Fix E1000 mtu
2024-02-12 04:25:39 +02:00
Bananymous
b45d27593f
Kernel: Implement super simple PRNG
2024-02-12 04:25:06 +02:00
Bananymous
ff49d8b84f
Kernel: Cleanup OSI layer overlapping
2024-02-09 17:05:07 +02:00
Bananymous
5d78cd3016
Kernel: Add spin lock assert back. I had accidentally deleted it
2024-02-09 16:58:55 +02:00
Bananymous
ed0b1a86aa
Kernel: Semaphores and Threads can now be blocked with timeout
2024-02-09 15:28:15 +02:00
Bananymous
534b3e6a9a
Kernel: Add LockFreeGuard to LockGuard.h
2024-02-09 15:13:54 +02:00
Bananymous
d452cf4170
Kernel: Fix checksum for packets with odd number of bytes
2024-02-09 01:20:40 +02:00
Bananymous
acf79570ef
Kernel: Cleanup network APIs and error messages
2024-02-08 18:33:49 +02:00
Bananymous
9bc7a72a25
Kernel: Implement unix domain sockets with SOCK_DGRAM
...
Also unbind sockets on close
2024-02-08 13:18:54 +02:00
Bananymous
49889858fa
Kernel: Allow chmod on TmpSocketInode
2024-02-08 03:16:01 +02:00
Bananymous
e7dd03e551
Kernel: Implement basic connection-mode unix domain sockets
2024-02-08 02:28:19 +02:00
Bananymous
e26f360d93
Kernel: allow kmalloc of size 0
2024-02-07 22:36:24 +02:00
Bananymous
572c4052f6
Kernel: Fix Process APIs
2024-02-07 15:57:45 +02:00
Bananymous
132286895f
Kernel: Implement Socket inodes for tmpfs
2024-02-07 15:57:45 +02:00
Bananymous
41cad88d6e
Kernel/LibC: Implement dummy syscalls for accept, connect, listen
2024-02-07 15:57:45 +02:00
Bananymous
5da59c9151
Kernel: Make better abstractions for networking
2024-02-06 16:45:39 +02:00
Bananymous
f804e87f7d
Kernel: Implement basic gateway for network interfaces
2024-02-05 18:18:56 +02:00
Bananymous
dd3641f054
Kernel: Cleanup ARPTable code
...
Packet process is now killed if ARPTable dies.
ARP wait loop now just reschecules so timeout actually works.
2024-02-05 18:18:56 +02:00
Bananymous
b2291ce162
Kernel/BAN: Fix network strucute endianness
2024-02-05 18:18:56 +02:00
Bananymous
d15cbb2d6a
Kernel: Fix IPv4 header checksum calculation
2024-02-05 18:18:56 +02:00
Bananymous
692cec8458
Kernel/Userspace/LibC: Implement basic dprintln for userspace
2024-02-05 01:24:09 +02:00
Bananymous
649e9f4500
Kernel: ARP now replies to requests
2024-02-03 18:04:12 +02:00
Bananymous
5cfe249945
Kernel: Cleanup network code and implement basic ARP request
2024-02-03 02:39:26 +02:00
Bananymous
a0138955cd
Kernel: Implement barebones arp table
2024-02-03 01:50:10 +02:00
Bananymous
e1ffbb710b
Kernel/LibC: Implement basic ioctl for network addresses
2024-02-03 01:50:10 +02:00
Bananymous
0f154c3173
Kernel: Implement basic recvfrom
2024-02-02 13:50:00 +02:00
Bananymous
4b332b5d42
Kernel: Cleanup PCI code
2024-02-02 03:16:37 +02:00
Bananymous
ec2f21bb9f
Kernel/LibC: Implement SYS_SENDTO
2024-02-02 03:16:01 +02:00
Bananymous
ab150b458a
Kernel/LibC: Implement basic socket binding
2024-02-02 01:31:58 +02:00
Bananymous
cf28ecd5a6
Kernel/LibC: Add SYS_SOCKET
2024-02-01 23:39:09 +02:00
Bananymous
99eed9c37a
Kernel: Start work on network stack
2024-02-01 23:38:06 +02:00
Bananymous
f4e86028d0
Kernel: Write simple working E1000 and E1000E drivers
2024-02-01 22:08:59 +02:00
Bananymous
c69efc040c
Kernel: Scheduler now uses the new LinkedList API for moving threads
...
Scheduler doesn't have to depend on the fact that allocations should
work when same amount of memory is just deallocated
2024-02-01 15:22:28 +02:00
Bananymous
139bb5c2a5
Kernel: Fix linker script
...
I have no idea why rodata was executable :D
2024-01-30 17:32:50 +02:00
Bananymous
95e861bcdd
Kernel: Optimize all SpinLocks. All locking operations are atomic
2024-01-30 12:39:37 +02:00
Bananymous
ca8e7b40bc
Kernel: Implement SpinLock without CriticalScope
...
This actually is not even spinlock since it yields the current
thread. It will become one when I get to SMP though...
2024-01-30 01:21:15 +02:00
Bananymous
a1faa836c5
Kernel: Hack NVMe controller to work :)
2024-01-30 01:06:00 +02:00
Bananymous
6bfe833aa5
Kernel: Parse RSDP from multiboot headers if exists
2024-01-26 00:49:42 +02:00
Bananymous
dfe5a2d665
All: Cleanup all files
...
Add newline to end of files and remove whitespace from end of lines
2024-01-24 15:53:38 +02:00
Bananymous
3441f63298
Kernel: Don't panic kernel if no interrupt could be reserved
2024-01-24 14:34:59 +02:00
Bananymous
2cee2a85e6
Kernel: DevFS now stores all devices
...
This allows removing hack in PCI that was required to keep NVMe
controller alive.
2024-01-24 14:33:50 +02:00
Bananymous
5001fa58e0
Kernel: Fix wait syscall with atomics
2024-01-24 14:32:52 +02:00
Bananymous
54a92293da
Kernel: Implement NVMe driver
...
I'm actually able to boot this os fine on own laptop now!
2024-01-17 08:26:58 +01:00
Bananymous
812e9efd41
Kernel: StorageDevices now specify prefix for partition names
2024-01-14 01:16:48 +02:00
Bananymous
c6130f33d7
Kernel: Implement MSI, MSI-X and interrupt reservation
2024-01-13 18:21:21 +02:00
Bananymous
56a29dc176
Kernel: Fix PS/2 Controller if port 0 is empty
2024-01-13 17:05:29 +02:00
Bananymous
7adc7e55a5
Kernel: Fix timeouts in AHCI code and add more volatile keywords
2024-01-12 19:26:20 +02:00
Bananymous
4be726b130
Kernel: Implement more error handling in IDE controller
2024-01-12 02:55:06 +02:00
Bananymous
db933d5466
Kernel: Improve keymap file loading
...
Now you can include other files in keymaps and set which keys are
modifier keys
Only keys that are set in keymap file are actually updated
2024-01-12 02:55:06 +02:00
Bananymous
83ca469ed7
Kernel: Modifier keys are taken from current keyboard layout
...
I used to assume where all modifiers were, but they are now taken
from keyboard layout.
2024-01-11 11:53:11 +02:00
Bananymous
d2c0718f7d
Kernel: Fix toggleable modifier keys and add two more keys
2024-01-11 11:43:05 +02:00
Bananymous
ab39c6541a
Kernel: Require keymap loading superuser privileges
2024-01-10 14:50:30 +02:00
Bananymous
51214ea1bf
Kernel: Add load_keymap syscall and load Finnish keymap in init
2024-01-10 14:46:29 +02:00
Bananymous
8f89519bcf
Kernel: Keymaps can now be loaded from files
2024-01-10 14:43:19 +02:00
Bananymous
e6d42e5c45
Kernel: Add timeout for device commands on PS/2 devices
2024-01-10 12:51:24 +02:00
Bananymous
961ab9768a
Kernel: KeyEvent is now well known keycode
...
Keycodes are easier to handle as you need only one keyboard layout
for keycodes. Otherwise you would need to implement keyboard layout
for every keyboard driver in every language.
2024-01-10 12:51:24 +02:00
Bananymous
e4f48cbc73
Kernel: Move PS/2 command queue to controller instead of device
2024-01-09 20:00:19 +02:00
Bananymous
e8f853a197
Kernel: After device updates, reschedule instead of sleeping
2024-01-09 11:21:00 +02:00
Bananymous
d760239748
Kernel: Do a big rewrite of PS/2 code
...
Command sending+response reading is now synchronized. This allows
bochs to properly initialize both mouse and keyboard simultaneously.
Also status register is checked EVERY time read/write to other IO
ports is performed.
2024-01-08 10:50:55 +02:00
Bananymous
f0cf54e194
Kernel: Reads from PS/2 keyboard and mouse can be terminated
2024-01-05 12:13:44 +02:00
Bananymous
41ae05dd6e
Kernel: Update block_or_eintr API to return ErrorOr<>
2024-01-05 12:13:11 +02:00
Bananymous
54c811ac2e
Kernel: Fix some mouse scrolling bugs and cleanup event generation
2024-01-04 19:50:26 +02:00
Bananymous
12a78c822e
Kernel: Explicitly construct ByteSpan from Span<uint8_t>
...
VSC complains about not finding proper constructor, this fixes that.
2024-01-04 12:17:55 +02:00
Bananymous
e45b544a39
Kernel: Implement PS/2 mouse driver
...
This is realtively simple driver that queries extensions (scroll +
extra buttons) from mouse and reads mouse packages.
2024-01-04 12:17:55 +02:00
Bananymous
d1e187570e
Kernel: Fix old keyboard command
2024-01-04 12:08:23 +02:00
Bananymous
d4191c0d94
Kernel: Reorganize PS/2 files to their own directory
2024-01-04 12:04:45 +02:00
Bananymous
c2957d8761
Kernel: PS/2 device automatically sends commands when appended
2024-01-04 12:04:45 +02:00
Bananymous
891ced4da2
Kernel: Move PS2Device to its own file
2024-01-04 12:04:45 +02:00
Bananymous
8f8d6bddc0
Kernel: Unify PS2Device to handle commands instead of inherited
2024-01-04 12:04:45 +02:00
Bananymous
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
Bananymous
0ba278041b
Kernel: Start exec by loading the ELF file. It might not exist...
2024-01-03 23:50:02 +02:00
Bananymous
b0ff2392a1
Kernel: Add some helpful debug prints
...
Log RIP when stack pointer is out of bounds.
Log all syscalls that return ENOTSUP
2024-01-03 02:08:01 +02:00
Bananymous
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
Bananymous
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
Bananymous
96d831c31a
Kernel/LibC/Userspace: Implement chown and set tty owner on login
2024-01-02 22:19:38 +02:00
Bananymous
4307968182
All: Start work again on sse support
2023-12-28 19:14:42 +02:00
Bananymous
951eac6bfa
Kernel: Implement hacky non-block read for ps2 keyboard
2023-12-19 00:20:46 +02:00
Bananymous
0833d7b43f
Kernel: Allow opening files with O_NONBLOCK
2023-12-19 00:20:15 +02:00
Bananymous
e227a87140
Kernel: Allow creating directories if path ends with '/'
...
Also create and create_dir will now fail with EEXISTS if file exists
2023-12-14 10:56:53 +02:00
Bananymous
6cd5763361
Kernel: Allow cloning of mmapped framebuffer regions
2023-12-14 10:54:06 +02:00
Bananymous
0f1c740fe8
Kernel: Implement two missing ubsan handlers needed by lai
2023-12-14 10:53:36 +02:00
Bananymous
2f8759d2d3
Kernel: Make ext2 fs work with block sizes != 1024
2023-12-10 01:32:30 +02:00
Bananymous
284a012509
Kernel: Add framebuffer information to kernel image
2023-12-09 17:33:58 +02:00
Bananymous
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
Bananymous
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
Bananymous
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
Bananymous
24b71d1170
Kernel: Appreciate setuid and setgid bits executables
2023-12-06 18:14:27 +02:00
Bananymous
393ac33e3c
Kernel: Make sys_nanosleep interruptable by signals
2023-12-06 16:22:24 +02:00
Bananymous
deeb6d2756
Kernel: Cleanup sys_sleep() and TTY::read_impl
2023-12-06 16:21:22 +02:00
Bananymous
1ac831d4b1
Kernel: Add API to block on semaphore until unblock or EINTR
2023-12-06 16:13:07 +02:00
Bananymous
534969df32
Kernel: Scheduler::unblock_thread() wakes sleeping threads
2023-12-06 16:12:37 +02:00
Bananymous
a12ffaa8a2
Kernel: Make sleep syscall interruptable
2023-12-06 13:13:37 +02:00
Bananymous
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
Bananymous
cdcc36efde
Kernel: Remove unnecessary raise syscall
2023-12-06 13:00:45 +02:00
Bananymous
336daa2cc5
Kernel: Add helper for checking whether segment is from userspace
2023-12-06 12:57:13 +02:00
Bananymous
c140dd2a65
Kernel: Fix keyboard layout for underscore
2023-12-01 12:31:16 +02:00
Bananymous
9b841cb823
BuildSystem/Kernel: Enable -Wextra and -Werror in kernel
...
Only needed to fix some unused variable bugs
2023-12-01 01:22:53 +02:00
Bananymous
c1cac43f28
BuildSystem: Don't build lai with -Wstack-usage
...
Lai has two functions that trigger warnings on gcc. There isn't
really anything I can do about it, so just disable the warning
2023-12-01 01:22:53 +02:00
Bananymous
fdb6dc94ba
Kernel: cast between inheritance with static_cast
...
using reinterpret_cast is not a good idea. preferably we would use
dynamic_cast, but that is not possible since kernel is compiled with
-fno-rtti.
2023-11-29 20:50:57 +02:00
Bananymous
327b330338
Kernel: Make internal framebuffer bpp constexpr defined in libc
2023-11-29 20:07:33 +02:00
Bananymous
d7a3aca5d4
Kernel: Use the correct bpp when writing to framebuffer
2023-11-29 00:31:24 +02:00
Bananymous
cc572af390
Kernel: Implement mmaping for framebuffer device
2023-11-28 23:51:56 +02:00
Bananymous
4275d2ce48
Kernel: Add framebuffer device to devfs
2023-11-28 23:51:28 +02:00
Bananymous
4a87d6052b
Kernel: Add API for implementing mmappable devices
2023-11-28 23:50:49 +02:00
Bananymous
d86ecf4f61
Kernel: Reading from negative offset in fb dev gives out info
2023-11-28 23:50:11 +02:00
Bananymous
09b7cb2f33
Kernel/LibC: Implement pread()
2023-11-28 23:47:30 +02:00
Bananymous
60e755210c
Kernel/LibC: Implement very basic msync
2023-11-22 22:44:06 +02:00
Bananymous
ab9954fe73
Kernel: Delete the now obsolete VesaTerminalDriver
2023-11-22 21:59:11 +02:00
Bananymous
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
Bananymous
b88a7e0c6b
Kernel: Add more APIs to FramebufferDevice
2023-11-22 21:56:27 +02:00
Bananymous
cdf53f33f6
Kernel: Implement basic framebuffer device
...
This allows exposing framebuffer to userspace
2023-11-22 20:34:41 +02:00
Bananymous
bc5e8add19
Kernel: Make Ext2 filesystem use BlockDevice instead of Partition
2023-11-21 15:20:24 +02:00
Bananymous
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
Bananymous
b749963b62
Kernel: Add common {read,write}_blocks() api to BlockDevice
2023-11-21 15:19:07 +02:00
Bananymous
6a068fb9f9
Kernel: Move Partition to its own file
2023-11-21 15:16:04 +02:00
Bananymous
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
Bananymous
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
Bananymous
cb5a5d3ed1
Kernel/Bootloader: banan-os can now be booted with my bootloader :D
2023-11-17 20:33:02 +02:00
Bananymous
95af728e39
Kernel: Don't calculate divisor in a for loop in ext2 inodes
2023-11-17 19:02:01 +02:00
Bananymous
24d87acec4
Kernel: Serial now uses random size for some serial ports
...
If the serial port doesn't repond with a size, just use a random
one. There is no reason to ditch the whole output if you cannot
determine its size.
2023-11-17 18:56:02 +02:00
Bananymous
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
Bananymous
c084ce8b01
Kernel/LibC: Implement readlink and readlinkat
2023-11-11 23:16:52 +02:00
Bananymous
fda0dfec30
Kernel: Make TmpFS enforce max page count.
2023-11-07 16:13:21 +02:00
Bananymous
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
Bananymous
5044810451
Kernel: Make DevFS use the new and better TmpFS instead of RamFS
2023-11-07 16:05:05 +02:00
Bananymous
147cd93ed3
Kernel: Add method to TmpFS for looping over all (cached) inodes
2023-11-07 16:04:34 +02:00
Bananymous
07b5920f3f
Kernel: Lock TmpFS in all its methods
2023-11-07 16:03:52 +02:00
Bananymous
2bcf934389
Kernel: Implement symlinks to TmpFS
2023-11-07 15:59:50 +02:00
Bananymous
1405712f26
Kernel: Make PS/2 keyboard wait until interrupts are enabled
2023-11-07 15:58:50 +02:00
Bananymous
885ed218fa
Kernel: Make unlinking from /proc always fail with EPERM
2023-11-07 02:40:27 +02:00
Bananymous
b1f431d962
Kernel: /tmp is now TmpFS instead of RamFS
2023-11-07 02:36:22 +02:00
Bananymous
06e176e6b9
Kernel: Make ProcFS use the new TmpFS internally
2023-11-07 02:35:44 +02:00
Bananymous
b7771e95ac
Kernel: Implement TmpFS Inode unlinking and deletion
2023-11-06 21:49:12 +02:00
Bananymous
3e33fc156b
Kernel: TmpFS directory inodes now iterate over only valid entries
2023-11-06 21:41:51 +02:00
Bananymous
438f01a856
Kernel: Fix TmpFS directory entry enumeration early return
2023-11-06 21:06:10 +02:00
Bananymous
5dd8189048
Kernel: Fix ext2 directory listing for big directories
2023-11-06 21:05:58 +02:00
Bananymous
ff6b127c3a
Kernel: Implement TmpFS directory listing
2023-11-06 21:05:58 +02:00
Bananymous
c3ed700324
Kernel: Implement TmpFS inode chmod
2023-11-06 20:11:34 +02:00
Bananymous
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
Bananymous
c92c1b8e2b
Kernel: TmpInode blocks are on demand allocated
2023-11-06 10:44:37 +02:00
Bananymous
c27d20abd8
Kernel: Implement read/write/truncate for TmpFileInode
2023-11-05 02:28:43 +02:00