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684 Commits

Author SHA1 Message Date
Bananymous 4f0457a268 Kernel: Rewrite a lot of TCP code and implement TCP server sockets 
TCP stack is now implemented much closer to spec
 2024-06-20 13:26:50 +03:00
Bananymous bce16cdd6e Kernel: Fix how socket closing works 
Sockets are now closed only when they are not referenced any more. This
allows child process to close socket and still keep it open for the
parent.
 2024-06-19 10:39:44 +03:00
Bananymous 318ce5dec8 All: Fix a lot of compiler warnings from header files 
While reworking build system, header files started to report warnings.
 2024-06-18 23:02:10 +03:00
Bananymous be7ed8e74a Kernel/LibC: Implement {get,set}sockopt() 
These are pretty much dummy functions in the kernel side. Only case that
is handled is SOL_SOCKET with SO_ERROR. This is hard coded to return no
error. Network stack is currently synchronous, so all errors are already
reported through synchronous network functions.
 2024-06-17 20:56:48 +03:00
Bananymous cad55a4da5 Kernel/LibC: Implement getsockname for ipv4 sockets 2024-06-17 20:54:45 +03:00
Bananymous ea7fc7f6c4 Kernel: Implement read-only FAT12/16/32 driver with long name support 
You can now mount FAT filesystems! This code might not work perfectly
but my quick testing seemed to work on all (FAT12/16/32) variants.
 2024-06-14 01:04:12 +03:00
Bananymous 766439db6d Kernel: Start work on adding support for new filesystems 
Old code tried to create ext2 filesystem from all devices.
 2024-06-11 10:50:26 +03:00
Bananymous 530c259e71 Kernel: Close unix domain socket when it gets destoyed 
Inode closing is something that needs a complete rework. Currently all
sockets are closed when close() is called, which leads to connection
closing if you fork()/exec() with socket being marked as CLOEXEC.

Inodes should probably only be closed once they are not referenced
anywhere.
 2024-06-03 18:06:01 +03:00
Bananymous 765ccfa18c Kernel: Deliver SIGCHLD on process exit and ignore it properly 2024-06-03 17:58:24 +03:00
Bananymous bd1290706a Kernel: Implement SharedMemoryObject cloning 2024-06-03 03:41:00 +03:00
Bananymous aec5a09caf Kernel/LibC: Implement SYS_ISATTY and isatty() 2024-06-03 03:36:25 +03:00
Bananymous 446220494e Kernel: Unix domain sockets close can now be detected 
When a unix domain socket is closed and it has a connection to another
socket, it will make the other socket readable and recv will return 0.

This allows detection of socket closing
 2024-06-02 16:48:55 +03:00
Bananymous 8bfacb0091 Kernel: Implement deletion of SMO objects 2024-05-31 13:04:23 +03:00
Bananymous 0501f3bd99 Kernel: Move font code to its own library LibFont 2024-05-31 10:47:05 +03:00
Bananymous 6840a8983c Kernel: Make sure MSB is not set on SMO keys 2024-05-29 20:01:12 +03:00
Bananymous a1b3490764 Kernel: Improve random number generation for unsigned types 2024-05-29 20:00:47 +03:00
Bananymous d4d530e6c8 Kernel: Implement basic shared memory objects 
These can allocate memory that can be shared between processes using
a global key. There is currenly no safety checks meaning anyone can
map any shared memory object just by trying to map every possible key.
 2024-05-29 15:58:46 +03:00
Bananymous 3823de6552 Kernel: Add templated get function for Random 2024-05-29 15:32:00 +03:00
Bananymous 8bc6c2eb20 Kernel: Move KeyEvent/MouseEvent from kernel to LibInput 2024-05-28 23:30:08 +03:00
Bananymous 18e2559b1e Kernel/LibC: Add SYS_TRUNCATE 2024-05-28 01:08:04 +03:00
Bananymous 8b1514e575 Kernel: Make all storage devices readable and writable 
I only had a {read,write}_impl defined for ATABaseDevice. This patch
moves that implmentation to general storage device.
 2024-05-27 13:41:55 +03:00
Bananymous 2d3810874d Kernel: Fix thread signal handling 
Threads will now only handle signals once they are not holding any
mutexes. This removes some dead locks.
 2024-05-26 20:08:35 +03:00
Bananymous 2a4d986da5 Kernel: Add preliminary support for PCIe 
Only segment 0 is supported, but devices can now be accessed through
mmio.

Adding more segments would require adding argument to every PCI API so
it is left for later.
 2024-05-25 20:50:07 +03:00
Bananymous df260fe0e8 Kernel: Process::validate_pointer_access now maps the whole range 
This fixes a bug where userspace provided address is not fully mapped
and the kernel tries to read/write it while using PageTable fast page.

In the future userspace input should be copied on syscall entry, so
userspace could not modify the input during syscall. Currently there
is change that userspace input passes kernel syscall validation and
after that userspace could modify the input before the value is
actually used.
 2024-05-24 14:14:17 +03:00
Bananymous 2be4fe8404 Kernel: Make PageTable::s_fast_page_lock non-recursive 
This lock is only used in wrapper of PageTable. There is no possiblity
of taking the lock outside of these wrappers.
 2024-05-24 14:12:35 +03:00
Bananymous 06f4b0b29a BAN: Make String and StringView header only 
This allows linking with libc without having to link ban
 2024-05-23 15:43:26 +03:00
Bananymous 83e3409bd8 Kernel/LibC: Update SYS_SEEK to return new offset and implement lseek 2024-05-23 14:49:23 +03:00
Bananymous 0af74fccda Kernel/LibC: Rework dirent structure 
dirent now contains statically sized d_name. This allows using
sizeof on the name and dirent properly, which some programs seem
to be using.
 2024-05-22 20:19:59 +03:00
Bananymous e7e1dd91c7 Kernel: Implement ACPI reset 2024-04-22 21:12:13 +03:00
Bananymous 693f90449f Kernel: Rework AML package and implement indexing in to packages 2024-04-19 11:26:48 +03:00
Bananymous 061012a268 Kernel: Fix signal trampoline 
32 bit did not even support it and 64 bit did not align stack
 2024-04-18 13:32:40 +03:00
Bananymous a698f91db4 Kernel: Fix PriorityMutex::try_lock() 
Forgot to check this when I updated Mutex::try_lock()
 2024-04-18 01:36:15 +03:00
Bananymous 30d12a76bc Kernel: Fix 32 bit compilation 2024-04-18 01:35:56 +03:00
Bananymous 687fa44eff Kernel: Add support for ACPI general purpose events 2024-04-17 21:51:03 +03:00
Bananymous aefb33efff Kernel: Implement dummy AML NotifyOp 2024-04-17 15:40:11 +03:00
Bananymous da0c45b7ee Kernel: Cleanup AML debug dump output 2024-04-17 15:35:42 +03:00
Bananymous 956335e844 Kernel: Implement AML WhileOp 2024-04-17 15:00:14 +03:00
Bananymous 701fc600cd Kernel: Implement evaluate and store for BankFieldElement 2024-04-17 14:59:51 +03:00
Bananymous e38b2cff4f Kernel: Implement proper synchronization for AML opregions 2024-04-17 14:59:26 +03:00
Bananymous b268293402 Kernel: Fix Buffer evaluate and store for sizes >= byte 
All reads and writes were to the first byte. This patch adds the
correct offset for reading and writing.
 2024-04-17 14:57:13 +03:00
Bananymous 45b9dc8be9 Kernel: Make ACPI \\_OSI return true for Linux 2024-04-17 02:19:35 +03:00
Bananymous 49b7467840 Kernel: Simplify AML method invocation API 2024-04-17 01:20:58 +03:00
Bananymous a40ef610a2 Kernel: Allow demand paging only for userspace threads 2024-04-17 01:16:43 +03:00
Bananymous f9943b60e4 Kernel: Fix mutex try_lock return value 
WHY IS GCC NOT COMPLAINING FROM HEADERS... I used almost 2 hours
trying to locate why AML was broken
 2024-04-17 01:16:43 +03:00
Bananymous cbc27a94ac Kernel: AML cleanup IfElse code 2024-04-17 00:49:07 +03:00
Bananymous 6a4f999b88 Kernel: Cleanup AML code and add evaluate for string 2024-04-16 17:39:16 +03:00
Bananymous 7707e01352 Kernel: AML add flag to force absolute lookup for ACPI namespace 2024-04-16 17:38:23 +03:00
Bananymous e667326df5 Kernel: Fix AML if parsing 
Parse else case unconditionally, even if _if_ case evaluates to true
 2024-04-16 17:36:04 +03:00
Bananymous f1b2d7530d Kernel: Rework AML namespace and object hierarchy 
Remove tree-like structure from AML. This allows more spec compliant
parsing of named objects inside not yet declared devices.

This also allows AML to be run thread safely. All object adds/removes
are now guarded by a mutex.
 2024-04-16 16:47:45 +03:00
Bananymous b89bafa165 Kernel: Add support for power button shutdown 
This patch implements basic support for power button using ACPI
fixed events. I still need to implement general purpose events
and embedded controller for full power button support.
 2024-04-15 23:55:25 +03:00