1094 Commits

Author	SHA1	Message	Date
apio	56f3d26969	kernel+libluna: Fix the CRC32 algorithm and use it to verify the GPT header	2023-07-10 14:54:55 +02:00
apio	16b0531d42	kernel+apps+base+tools: Use Ext2 for the root partition file system ... init is now split into two parts: preinit, which lives in the initrd and prepares the root file system for init, and the actual /usr/bin/init, which lives in the root partition and starts services and reaps zombies. The kernel now looks for /bin/preinit instead of /bin/init as the executable for the init process. All configuration files in initrd/etc have been moved to base/etc. (The plan is to have only moon and preinit in the initrd.) Since the current Ext2 implementation is read-only (and it's on a CDROM so it would be read-only anyways), /home/selene is a tmpfs (as well as /tmp), to allow for a writable home directory. The system is slower now, but that's to expect since the Ext2 code doesn't use caching and the ATA code still uses PIO.	2023-07-10 13:05:06 +02:00
apio	40413eee18	kernel: Panic when PID 1 exits/crashes	2023-07-10 13:04:47 +02:00
apio	e3552d9df0	kernel: Log hostname changes	2023-07-10 13:04:40 +02:00
apio	a1b92fcc3f	kernel: Add the MOUNT_DEBUG flag	2023-07-10 13:04:34 +02:00
apio	0b488c1232	kernel: Actually use config.cmake ... Looks like file(EXISTS) needs a full path.	2023-07-10 13:04:26 +02:00
apio	b920ffee42	kernel: Don't use an active directory for the idle thread ... Just take the currently used directory.	2023-07-10 13:04:18 +02:00
apio	503dc72686	kernel: Set kernel threads' initial active directories to avoid taking the first directory they use ... This ends up being init's directory, which is fine when init's directory doesn't change... but a little less fine when the init process calls exec()... which is what it does in the new configuration I'm testing...	2023-07-10 13:04:00 +02:00
apio	7908c5a63e	kernel/ATA: Do not discard the controller if at least one channel initialized properly ... This was causing problems in VirtualBox.	2023-07-10 13:01:43 +02:00
apio	ae0cd155c3	kernel: Fix AddressSpace's move assignment operator	2023-07-09 20:43:03 +02:00
apio	c599251d2a	kernel: Rename UserVM to AddressSpace ... This is a more appropriate name now that it does more stuff than allocate virtual memory. To be fair, the name was a bit awkward anyway. Should have been UserVMAllocator I guess.	2023-07-09 20:38:04 +02:00
apio	5e564e9ae3	kernel: Move Thread::self_directory to UserVM ... Since this is only used by user threads, UserVM is a convenient/related place to store the PageDirectory in a RAII manner.	2023-07-09 20:32:42 +02:00
apio	af26dce038	kernel: Zero physical frames instead of virtual pages ... The memset() happens a bit earlier, and we don't have to remap the mapped virtual memory.	2023-07-04 00:49:26 +02:00
apio	3b1219ecf2	kernel/ext2: Make the inner extended superblock struct packed as well	2023-07-02 19:50:27 +02:00
apio	bd757d204e	kernel+libos+libluna: Avoid copying and reallocation when creating Strings ... This is done by reusing the existing buffers in Vector and Buffer instances.	2023-07-02 19:30:25 +02:00
apio	d363d5e915	kernel/ext2: Make sure we don't crash when accessing the last inode	2023-07-02 17:30:14 +02:00
apio	dd914b16d1	kernel: Stop showing memory stats at boot ... No userspace interface yet, but this can be shown using Shift+Ctrl+M.	2023-07-02 16:02:38 +02:00
apio	e9e7b22323	kernel: Separate a thread's page directory into two ... The self directory, and the active directory. The active directory is the one the thread is currently using, and the self directory is the one the thread owns. This lets us keep track of both, which fixes ext2 executables crashing the system.	2023-06-25 20:35:40 +02:00
apio	5f4103251a	kernel: Preserve the new page directory while exec() is running	2023-06-25 20:35:40 +02:00
apio	da689dd1a7	kernel/ext2: Allow reading up to 4 MB of data from files ... This is done by scanning the singly indirect pointer of the inode.	2023-06-25 20:35:39 +02:00
apio	41f578aa18	kernel/ext2: Add support for symbolic links	2023-06-25 20:35:38 +02:00
apio	34e1ef36b1	kernel: Make pivot_root() reset the parent entry of the new root directory ... Otherwise it would just be pointing to the old parent fs, and we don't want that.	2023-06-25 20:35:38 +02:00
apio	a62265b504	kernel/ext2: Implement directory traversal	2023-06-25 20:35:37 +02:00
apio	4fe6c506ec	kernel/ext2: Implement Inode::read()	2023-06-25 20:35:37 +02:00
apio	77686b26f8	kernel/Ext2: Read the root inode metadata from the disk	2023-06-25 20:35:36 +02:00
apio	a9460469d9	kernel+libc+apps: Add a source parameter to the mount() system call	2023-06-25 20:35:35 +02:00
apio	707f64acb5	kernel: Add an Ext2 filesystem skeleton	2023-06-25 20:35:35 +02:00
apio	ddf63471a8	kernel: Add missing debug flag to debug.cmake	2023-06-25 20:35:15 +02:00
apio	3b6f5b28fc	kernel: Make the configurable filename restrictions actually compile	2023-06-22 20:24:33 +02:00
apio	fdf2bb2501	kernel: Make the filename restrictions configurable	2023-06-22 20:22:43 +02:00
apio	3d157b760c	kernel: Make the stack and loaded program code regions persistent ... This way, they can't be modified by mmap() or munmap().	2023-06-19 12:44:49 +02:00
apio	54a1998d42	kernel: Also move children's parent to PID 1 in the common thread exit function	2023-06-19 12:35:31 +02:00
apio	e60b2a3d2f	kernel: Move thread exit code into a separate common function	2023-06-19 12:33:25 +02:00
apio	b4a6e4d56d	libluna/PathParser: Make dirname() and basename() static functions ... This avoids creating a PathParser to use them, which allocates memory that won't be used.	2023-06-19 11:21:58 +02:00
apio	7efc3a6ea1	kernel: Show stack traces on page faults + crash the process instead of the whole system on GPFs	2023-06-19 10:45:08 +02:00
apio	ae01a31104	kernel: Make sure the stack is 16-byte aligned on program startup ... This is required by the System V ABI and fixes some movaps-related GPFs in ndisasm.	2023-06-19 10:41:32 +02:00
apio	36e6787415	kernel: Make sure addresses allocated by mmap() are ALWAYS page-aligned ... Fixes a kernel crash. Thanks a lot, sysfuzz!	2023-06-18 20:29:32 +02:00
apio	04322d9ff7	kernel: Add a customizable configuration file system	2023-06-18 20:18:19 +02:00
apio	b7bdec9ece	kernel: Add a bunch more config definitions and hide debug messages behind them	2023-06-18 20:18:00 +02:00
apio	d45e9e2a8c	libluna: Simplify the API for Utf8StateDecoder by splitting it into multiple methods	2023-06-18 18:38:01 +02:00
apio	27d9cd0e87	kernel: Move TmpFS::*Inode into a separate file	2023-06-18 11:33:40 +02:00
apio	3a3473b9c2	kernel: Use memcpy() when cloning UserVM ... This way, any future fields in VMRegion get copied automatically.	2023-06-18 01:54:29 +02:00
apio	67ed18629d	kernel: Update the VM allocator for userspace to use a linked list ... This can cover the entire address space at once in a more memory-efficient way. Stress-tested using 'base64 /bin/ls' which allocates enough contiguous virtual memory to store the entirety of /bin/ls :) A couple of bugs and fixes later, here we are!	2023-06-18 01:48:48 +02:00
apio	266fa4a0d4	kernel: Start counting partition numbers at 1 ... This makes more sense for the end user.	2023-06-17 19:50:58 +02:00
apio	7cace9a0d7	kernel: Provide more meaningful panic messages for critical failures	2023-06-17 19:43:25 +02:00
apio	e79d4297ea	kernel: Make the root inode be a mountpoint as well + add pivot_root()	2023-06-17 17:27:22 +02:00
apio	b7a82fd895	kernel: Do not error out on zero-length reads/writes to bad addresses	2023-06-17 12:04:34 +02:00
apio	592558d7ad	kernel: Add GUID partition table support	2023-06-17 12:03:37 +02:00
apio	2be4880278	kernel: Name the scoped lock in ATADevice::read() ... Is that supposed to work without a name? Looks like it did!	2023-06-17 09:46:28 +02:00
apio	7a78609a85	kernel: Preserve kernel threads' page directories when they differ from the regular kernel page directory	2023-06-17 00:49:31 +02:00
apio	c2cdb861c9	kernel/ATA: Fix buffer overflow in ATADevice::read() with small sizes and unaligned offsets	2023-06-17 00:48:53 +02:00
apio	27b26f389c	kernel: Lock ATADevice::read_lba() using ATA::Channel's KMutex	2023-06-17 00:22:38 +02:00
apio	32d2e0e6b7	kernel: Remove register_special_device()'s name parameter ... This is now duplicate information that can be queried using device->device_path().	2023-06-16 21:46:51 +02:00
apio	ba46399bbd	kernel/ATA: Remove debug messages	2023-06-16 21:34:36 +02:00
apio	738b218a49	kernel/ATA+MBR: Dynamically generate device names + create devices for MBR partitions	2023-06-16 21:30:50 +02:00
apio	72b8ebe02c	kernel: Make the MBR code read from a device instead of an inode	2023-06-16 21:10:33 +02:00
apio	72e798cedb	kernel: Do not automatically read the MBR partition table from /dev/cdrom ... Since ff952cfe16 made /dev mounted from userspace, /dev/cdrom does not exist when ATA drives are scanned.	2023-06-16 21:10:33 +02:00
apio	7593947c33	kernel/ATA: Route interrupts to the correct drive	2023-06-16 21:10:33 +02:00
apio	93922932fa	kernel: Start reading the MBR partition table from the ATAPI drive	2023-06-16 21:10:33 +02:00
apio	a3beaa4d53	ATA: Mark the CDROM as a block device	2023-06-16 21:10:33 +02:00
apio	bb0db450b3	kernel/ATA: Pass extra information to DeviceRegistry ... This is needed since merging e7d482e from main.	2023-06-16 21:10:33 +02:00
apio	a0fa1f2cfd	kernel+init: Create a device node in /dev to access the CDROM from userspace! ... Still using PIO, though.	2023-06-16 21:10:33 +02:00
apio	2fa11a5ae3	kernel/ATA: Read the CDROM's first sector using ATAPI PIO!! ... Sadly, for some reason, DMA is not working right now. This is a problem, as PIO is inconvenient. But hey, it works for now!	2023-06-16 21:10:32 +02:00
apio	cc8450751c	kernel/x86_64: Implement writing to PCI fields	2023-06-16 21:10:32 +02:00
apio	3762d3f959	kernel/PCI: Add bit enum for the Command field	2023-06-16 21:10:32 +02:00
apio	a99c5e325d	kernel: Actually register interrupt handlers properly	2023-06-16 21:10:32 +02:00
apio	82db0e39ea	kernel/ATA: Calculate block sizes for ATA devices as well	2023-06-16 21:10:32 +02:00
apio	46c45068e0	kernel/ATA: Send a READ CAPACITY packet to an ATA drive on initialization	2023-06-16 21:10:32 +02:00
apio	cfcde5af55	kernel/ATA: Read the PCI Busmaster registers and start preparing for DMA	2023-06-16 21:10:31 +02:00
apio	268252c89e	kernel/ATA: Read the Busmaster base port and verify it	2023-06-16 21:10:31 +02:00
apio	5d16754632	kernel: Handle device BARs properly	2023-06-16 21:10:31 +02:00
apio	6307b01689	kernel/ATA: Read ATA strings properly instead of backwards ... Now we can see the model string. What does it say... "QEMU DVD-ROM". Let's go!	2023-06-16 21:10:31 +02:00
apio	e118c9ea0d	kernel/ATA: Implement enough to send an IDENTIFY command and read the model number :)	2023-06-16 21:10:31 +02:00
apio	ee691bbb0f	kernel/ATA: Handle drive IRQs in compatibility mode	2023-06-16 21:10:31 +02:00
apio	739950e8f0	kernel/CPU: Allow passing arbitrary data to interrupt handlers	2023-06-16 21:10:31 +02:00
apio	3a84127fd6	kernel/ATA: Start reading/writing registers and detecting drives	2023-06-16 21:10:30 +02:00
apio	e8507d23ee	kernel: Warn if no ATA controller is found	2023-06-16 21:10:30 +02:00
apio	d9a1e8a980	kernel: Add a KMutex class and use that for ATA::Controller locking	2023-06-16 21:10:30 +02:00
apio	7efc6dc985	kernel/x86_64: Add basic ATA controller and channel identification	2023-06-16 21:10:30 +02:00
apio	beeafb73e6	kernel/PCI: Add more PCI field types	2023-06-16 21:10:30 +02:00
apio	f0caf010bf	kernel/x86_64: Add a way to register IRQ handlers from other kernel subsystems	2023-06-16 21:10:26 +02:00
apio	d0b65674e6	kernel: Fix 0-delay sleeps blocking the thread forever	2023-06-08 19:57:38 +02:00
apio	3283991ec6	kernel: Keep the old Timer::ticks_ms() API. ... Removing this API broke the ATA branch.	2023-06-03 21:02:18 +02:00
apio	8bcec00a9d	kernel: Change the timer subsystem to use timespecs natively	2023-06-03 13:15:10 +02:00
apio	1090815c8d	kernel: Honor the sticky bit	2023-06-03 11:55:10 +02:00
apio	ff952cfe16	kernel+init: Let userspace control devfs mountpoints	2023-06-02 21:45:31 +02:00
apio	11a4f8cc90	kernel: Wake the parent process when a child exits because of a page fault	2023-05-28 21:50:13 +02:00
apio	88d1da59e8	kernel+libc: Add access()	2023-05-27 12:04:27 +02:00
apio	bd8aaa917f	kernel+libc+ln: Add support for userspace hard link creation	2023-05-27 11:32:40 +02:00
apio	a98e9e8009	kernel: Add /dev/full	2023-05-27 10:42:45 +02:00
apio	b0506bf88f	kernel: Add umask	2023-05-26 22:27:49 +02:00
apio	d89a823924	kernel: Return EACCES when trying to chdir to an unaccessible directory	2023-05-26 20:49:13 +02:00
apio	cba0a23db9	kernel: Make the framebuffer a block device	2023-05-26 20:36:35 +02:00
apio	7cdb967730	kernel: compilation fix	2023-05-26 20:30:39 +02:00
apio	62e14e7580	kernel+libos+apps: Support block devices and disallow seeking character devices or pipes	2023-05-26 20:27:47 +02:00
apio	3a51807fa6	kernel+stat: Handle pipes correctly in stat()	2023-05-23 20:54:25 +02:00
apio	9cdfdbc6f9	kernel: Handle unnamed pipes in stat()	2023-05-23 20:49:26 +02:00
apio	1094042a7d	kernel: Implement st_dev and st_rdev	2023-05-23 20:45:24 +02:00
apio	1a6ad11462	kernel+libc+libos+ls: Add readlink()	2023-05-23 15:42:38 +02:00
apio	67a9d130e2	kernel: Add initial support for symbolic links :D	2023-05-20 21:49:24 +02:00
apio	01111442d3	kernel: Add the getrusage() system call	2023-05-20 12:48:07 +02:00
apio	1506331872	kernel+libc: Add the pstat() system call ... Luna-specific, but I like it.	2023-05-18 21:48:47 +02:00
apio	84bed3ceb3	kernel+libc: Remove mknod() ... Now that we automatically create files in /dev, mknod() is not needed anymore.	2023-05-18 19:42:14 +02:00
apio	d7c563aebd	kernel: Add reference counting for mounts ... This will make sure we cannot unmount a file system while there is another one mounted inside it.	2023-05-18 16:22:31 +02:00
apio	3a73d49aa1	kernel: Remove a mount from the mountpoint list after unmounting it	2023-05-18 16:18:09 +02:00
apio	8f6bd29da3	kernel: Make file system reference counting work for current directories ... Also, make pipes usable again.	2023-05-17 20:37:01 +02:00
apio	1f4c4928cc	kernel+libc+apps: Add mount and umount syscalls, libc wrappers, and utilities	2023-05-17 20:30:15 +02:00
apio	29174ca228	kernel/VFS: Add a way to unmount file systems	2023-05-17 19:52:26 +02:00
apio	e7d482e78a	kernel+init: Add a VFS mount system and auto-populate the devfs	2023-05-17 19:40:37 +02:00
apio	64d0f30bd9	kernel: Disallow write-related flags when opening a directory, not only when the directory flag is set ... Also return EISDIR instead of EINVAL as that is what Dr. POSIX mandates.	2023-05-11 21:29:49 +02:00
apio	411c6c40cd	kernel: Add the fchmodat() and fchownat() system calls	2023-05-11 19:49:03 +02:00
apio	efc6d03f23	kernel+libc: Add support for unnamed pipes	2023-05-10 22:48:31 +02:00
apio	1a2fce5316	kernel+libc: Add the O_TMPFILE open flag and the tmpfile() function	2023-05-09 22:04:34 +02:00
apio	4753e80583	kernel: Make DeviceRegistry store the created devices instead of creating them when requested	2023-05-09 18:31:27 +02:00
apio	916a73ca95	kernel: Rework the timer subsystem to count in microseconds	2023-05-07 21:51:36 +02:00
apio	9bab4c62a1	kernel: Compilation fixes	2023-05-07 21:42:03 +02:00
apio	72dadc6706	kernel: Define a constant to check for default memory access	2023-05-07 21:38:38 +02:00
apio	b25e212880	kernel: Make a generic function for checking memory flags	2023-05-07 21:37:01 +02:00
apio	77560bbc3e	kernel+tools: Allow loading files with different owners + add a more dynamic install script	2023-05-06 12:11:35 +02:00
apio	9184bbfef6	kernel: Disallow passing O_WRONLY and O_DIRECTORY at the same time	2023-05-05 18:53:50 +02:00
apio	d9d8f7cdc7	kernel: Remove unused headers from main.cpp	2023-05-04 23:59:46 +02:00
apio	293a992133	kernel: Add a kernel_wait_for_event() function to avoid weird calls to kernel_wait in kthreads	2023-05-04 23:43:00 +02:00
apio	4a7f68b989	kernel: Add a convenience wake_up() function	2023-05-04 23:35:54 +02:00
apio	3a1c22bb93	kernel: Add keyboard combinations for debug information dumps ... Ctrl+Alt+E: Dump threads Ctrl+Alt+M: Dump memory usage Ctrl+Alt+H: Dump heap state	2023-05-04 23:32:48 +02:00
apio	3ed9e578c7	kernel/x86_64: Wake the IO thread up only when there is an IO event, instead of polling every 10 ms	2023-05-04 23:07:09 +02:00
apio	96f3d29d37	kernel: Tell the reap thread to run when it's needed, instead of checking every 200 ms	2023-05-04 23:06:00 +02:00
apio	42eb0a1d74	kernel: Freeze waitpid()'s calling thread until a child tells us it's done, instead of polling it every 10 ms	2023-05-04 23:03:31 +02:00
apio	4616997f5b	kernel: Store a thread's parent directly instead of its parent's PID	2023-05-04 22:58:04 +02:00
apio	44e4ca804a	kernel: Make sure argument vectors passed to execve() are not too big	2023-05-04 16:36:24 +02:00
apio	abaf24d0da	kernel/CPU: Move some stuff to StringView	2023-05-03 17:35:46 +02:00
apio	7058ec945a	libluna: Use a String for name and handle prefix correctly in TarStream	2023-05-02 10:51:53 +02:00
apio	3e277b5d6f	libos: Introduce os::Directory	2023-04-28 21:16:43 +02:00
apio	0c1d33f2ec	kernel: Move some files into subdirectories	2023-04-28 15:55:06 +02:00
apio	52ce4b28aa	Scheduler: Remove redundant check in for_each_child	2023-04-28 15:22:16 +02:00
apio	7b4cfd52cd	Scheduler: Don't search threads spawned before the current thread to find children ... Children will always be spawned later (and thus have a higher PID) than their parent.	2023-04-28 15:19:01 +02:00
apio	bcdec62f51	kernel: Allow returning early from Scheduler::for_each_child	2023-04-28 15:13:53 +02:00
apio	77dcfab5ef	kernel: Run the initialization process in a thread ... This way we can give it more stack and also reclaim it later!	2023-04-28 13:23:07 +02:00
apio	24f4ce9669	kernel: Only allow Ctrl+D on an empty line	2023-04-26 20:42:26 +02:00
apio	099f6131d1	kernel: Avoid printing control characters that we don't have a special meaning for	2023-04-26 20:42:08 +02:00
apio	97e9fceaa4	kernel+libc: Add dup2()	2023-04-25 20:37:30 +02:00
apio	403b0f6b94	kernel+libc+init: Add a way to modify the system hostname	2023-04-24 21:20:44 +02:00
apio	9eab0886b6	kernel+libc: Add uname()	2023-04-24 20:34:44 +02:00
apio	5d56638851	kernel: Ignore all non-bootstrap processors	2023-04-22 12:25:43 +02:00
apio	60694f651f	kernel/ELF: Remove unused include	2023-04-22 12:20:30 +02:00
apio	2acd2ed75d	kernel/ELF: Avoid zeroing out memory twice	2023-04-22 12:19:22 +02:00
apio	4f6e020196	kernel+libc: Add framebuffer ioctls	2023-04-21 18:25:53 +02:00
apio	841fc25137	kernel+init: Add a framebuffer special device file	2023-04-21 18:18:15 +02:00
apio	02f8a50b9d	kernel: Replace unlink() with unlinkat()	2023-04-18 19:36:29 +02:00
apio	e466c51e9f	kernel: Also zero out mmap-ed pages	2023-04-17 22:16:27 +02:00
apio	95659639e5	kernel: Zero out allocated memory for userspace to avoid leaking sensitive data	2023-04-17 20:11:07 +02:00