Commit Graph

151 Commits

Author SHA1 Message Date
7058ec945a
libluna: Use a String for name and handle prefix correctly in TarStream 2023-05-02 10:51:53 +02:00
0c1d33f2ec
kernel: Move some files into subdirectories
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2023-04-28 15:55:06 +02:00
24f4ce9669
kernel: Only allow Ctrl+D on an empty line 2023-04-26 20:42:26 +02:00
4f6e020196
kernel+libc: Add framebuffer ioctls
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2023-04-21 18:25:53 +02:00
841fc25137
kernel+init: Add a framebuffer special device file
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2023-04-21 18:18:15 +02:00
949321932f
kernel: Do not forbid filenames starting with a hyphen
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Some programs on Linux seem to use those, better be careful.
2023-04-16 11:33:35 +02:00
e6954d2e49
kernel: Disallow problematic characters, control characters and invalid UTF-8 in filenames 2023-04-16 11:25:32 +02:00
82e7b0e860
kernel: Introduce *at() syscall framework, add openat() and fstatat()
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2023-04-15 20:26:15 +02:00
df95126ccd
kernel: Remove unneeded debug logs & random cleanups
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2023-04-14 21:10:38 +02:00
417e505750
kernel+libc: Add unlink(), rmdir(), remove() 2023-04-12 18:11:36 +02:00
2d30935fdb
kernel: Give each thread a working directory 2023-04-11 22:14:57 +02:00
fee33e7a14
kernel: Add ioctls() for termios stuff to ConsoleDevice
Only handles echoing for now.
2023-04-09 11:23:57 +02:00
76eb8cd129
kernel: Add an ioctl() system call 2023-04-09 11:22:57 +02:00
3887b98a7d
kernel: Support setuid binaries
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You still have to run "chmod 4755 /bin/su" as root inside Luna for now, as this is not done by the install scripts.
2023-04-08 16:32:56 +02:00
f6f9254eb4
kernel: Add process and filesystem UIDs and GIDs 2023-04-08 13:12:49 +02:00
64bca780a7
kernel: Add /dev/zero
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2023-03-30 21:19:16 +02:00
5623f3c699
tmpfs: Set the mode of the root directory on creation 2023-03-29 01:06:26 +02:00
8eb4d693ac
VFS: Add virtual method get() for getdents() and make existence checking occur in add_entry() 2023-03-28 21:15:26 +02:00
f084b57f39
kernel+sh: Allow using Ctrl+D to send EOF
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2023-03-24 17:21:21 +01:00
95e884db97
kernel: Fix compilation 2023-03-23 21:34:09 +01:00
cda036ce70
ConsoleDevice: Use a temporary buffer for backspace handling
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2023-03-23 21:22:12 +01:00
d33fccc66f
kernel: Implement reading from /dev/console 2023-03-19 19:15:19 +01:00
41514d9ad2
kernel: Add support for blocking reads 2023-03-19 11:21:50 +01:00
6a6a56a8b4
kernel: Make /dev/console actually respect the length parameter instead of trusting userspace's null terminators 2023-03-18 20:10:00 +01:00
7173c05a22
kernel: Add support for special device files and add a mknod() syscall 2023-03-18 09:10:33 +01:00
d66506256d
kernel/VFS+libc: Introduce modes
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2023-03-12 16:55:46 +01:00
354ffd033c
VFS: Add a size() method to inodes to implement seeking to the end of a file
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2023-03-12 14:49:21 +01:00
b54a7f3a80
kernel+libc: Add O_* flags and parse them in open()
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O_RDONLY, O_WRONLY, O_RDWR, O_TRUNC, O_CREAT and O_EXCL are fully implemented.

O_APPEND is partially implemented.

Other flags are not here yet.
2023-03-12 14:43:58 +01:00
c6aa2fe4ad
VFS: Populate the initial filesystem based on the initial ramdisk 2023-03-11 10:23:46 +01:00
ac304073b4
tmpfs: Disallow creating files/folders with already used names 2023-03-11 10:14:42 +01:00
d95ef110c9
vfs: Add support for creating directories given a full path 2023-03-11 01:13:44 +01:00
e5a41d2d52
tmpfs: Implement FileInode read() and write() 2023-03-11 00:52:39 +01:00
6fbf97292a
VFS: Implement resolve_path() using PathParser
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Already works better than old luna (handles .. correctly)
2023-03-10 22:18:48 +01:00
ff770b7328
VFS+TmpFS: Add support for creating subdirectories (mkdir)
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2023-03-10 21:09:08 +01:00
abdd460525
tmpfs: use adopt_shared_if_nonnull instead of plain adopt_shared in FileSystem::create() 2023-03-07 22:16:52 +01:00
65dd3cd7fb
TmpFS: Use StaticString<128> instead of char[128] 2023-02-27 15:22:39 +01:00
8ba571a30e
TmpFS: Use a fixed char array in DirInode's Entry instead of OwnedStringView 2023-02-27 15:22:39 +01:00
01b6294f76
kernel: Implement creating file inodes in tmpfs directories 2023-02-27 15:22:38 +01:00
a65f4311aa
tmpfs: make the root inode a DirInode instead of a FileInode 2023-02-27 15:22:38 +01:00
dd2f31d8d0
tmpfs: add DirInode skeleton 2023-02-27 15:22:38 +01:00
5fb292bc0e
tmpfs: rename tmpfs::Inode to tmpfs::FileInode 2023-02-27 15:22:37 +01:00
d3bda46325
tmpfs: Make m_next_inode_number atomic 2023-02-27 15:22:37 +01:00
ba9d725481
kernel: Rename FileSystem::root() to root_inode() and add a shortcut for the root filesystem's root inode 2023-02-27 15:22:37 +01:00
3a2b8bcfd7
kernel: Make a factory function for filesystem creation of inodes, and add inode numbers
Now every filesystem must provide fs->create_file_inode() for new inodes :)
2023-02-27 15:22:37 +01:00
a49555addc
kernel: Add a subclass of VFS::Inode to make it easier to implement file inodes 2023-02-27 15:22:36 +01:00
c422d11682
kernel: Start working on a VFS implementation using OOP and SharedPtr 2023-02-27 15:22:24 +01:00
cf758fdfdc Initial commit :) 2022-11-13 10:09:09 +01:00
42efc21110 Start implementing read and write support in tmpfs
write seems to work fine, read just hangs there, waiting.
2022-11-12 20:11:26 +01:00
046065c533 Fix tmpfs 2022-11-12 19:05:47 +01:00
3451d50a37 Try building a tmpfs, but weird stuff happens 2022-11-12 18:13:41 +01:00
511bb7a8c1 Kernel: Make readdir() available in created InitRD directories 2022-11-12 18:11:58 +01:00
58fb422161 Kernel: Return a Result in MemoryManager and strdup_from_user 2022-11-12 11:56:40 +01:00
559d074ce4 Kernel: Make a more convenient wrapper for basename() and dirname() 2022-11-12 10:39:25 +01:00
078f3f5862 Kernel: Add a remainder to refactor the initial ramdisk code 2022-11-09 16:07:49 +01:00
d76af10e70 Kernel: Move initrd into the fs/ folder
It makes more sense to put it in there.
2022-11-09 16:03:16 +01:00
98da473fdc Run clang-format 2022-11-08 19:07:43 +01:00
44815b08c7 Kernel: Use copy_from_user() and copy_to_user() in read/write
This is huge. Finally, we can do proper reads/writes with invalid addresses, or big buffers.
2022-11-06 15:19:23 +01:00
b2fb740d99 Kernel: Refuse to mkdir any directory named . or .. 2022-11-05 12:09:01 +01:00
2c08de044f Kernel, libc: Add support for querying the framebuffer's scanline via ioctl() 2022-11-03 20:20:22 +01:00
71633e264f Kernel: Make the serial port writable for everyone :) 2022-11-03 17:13:32 +01:00
249c79f8a3 Kernel, libc: Add ioctl()
Right now, only the framebuffer supports this system call, to query its dimensions.
2022-11-02 20:59:42 +01:00
8f2308c80d Kernel: Implement mmap-able device files (regular files are not mmap-able yet) 2022-11-02 20:24:07 +01:00
42a805fd60 Kernel: Move the translated keyboard to /dev/console and make /dev/kbd provide raw scancodes 2022-11-02 19:51:54 +01:00
af0f4d2037 Kernel: Remove /dev/uptime
This information can now be fetched with clock_gettime.
2022-10-30 10:16:53 +01:00
e640c6e245 Kernel, libc, userspace: Add file timestamps (atime,ctime,mtime) 2022-10-30 09:57:17 +01:00
0115cce750 Kernel/VFS: Add file owners and file modes, and check those in system calls 2022-10-28 17:10:28 +02:00
41f7232b77 Devices: Return EOF after first read for some devices
Still not optimal.
2022-10-26 20:54:47 +02:00
ec2c314234 Kernel: Add /dev/null 2022-10-25 17:59:55 +02:00
14367f07b5 Kernel: Add support for getdents() to DeviceFS 2022-10-23 14:05:55 +02:00
78d72c2f0c Kernel, libc: Add a getdents() system call
This is meant to be a low-level interface to implement dirent.h on top of.
2022-10-23 14:03:46 +02:00
0faabe02e5 Kernel, libc: Implement O_CLOEXEC 2022-10-22 10:28:02 +02:00
b2f5a0502f Kernel, libc: Implement O_NONBLOCK 2022-10-21 21:51:03 +02:00
da61e3648f Kernel: Implement blocking reads
This is a huge step forward!! bc actually runs now, without echo or backspace, but it runs!!
2022-10-21 21:26:19 +02:00
bef9158450 Kernel, libc: Add isatty() and F_ISTTY to fcntl() 2022-10-21 18:34:31 +02:00
a06e1c5a21 VFS: Remove warning when file is not found
That is a common ocurrence.
2022-10-20 19:11:50 +02:00
47bdfecedb Devices: Add /dev/uptime
This file contains how many milliseconds have passed since boot at the time of reading it :)
2022-10-19 21:11:12 +02:00
3c5c92c7c3 sh: Add a simple interactive shell 2022-10-19 19:42:05 +02:00
b035795eb3 Kernel: Move errno.h and (k)assert.h out of the main include directory
This is mostly so IDEs don't pick them up instead of the userspace headers :)
2022-10-19 17:41:23 +02:00
d2e2883a79 Kernel: Make mkdir() accessible to userspace 2022-10-16 17:22:12 +02:00
18fbccafb7 VFS: add an exists() function 2022-10-16 16:58:18 +02:00
f8154ce230 Kernel: Implement mkdir() from a single path
This is done using dirname() and basename() :)
2022-10-16 14:45:25 +02:00
36bb1cab5c FileDescriptor: add operator=() so that the fcntl(F_DUPFD syscall compiles :) 2022-10-15 11:16:18 +02:00
91d76a2ee4 Devices: Add a new RandomDevice :)
This new device uses the seeded Mersenne PRNG we use in the kernel.
This device is not meant for regular userspace use, but more for userspace to seed their own PRNGs from.

If the DeviceFS is mounted at /dev, this device can be found at /dev/random.
2022-10-14 20:14:49 +02:00
edda41a7bb libc: Implement fseek(), ftell() and rewind()
All three use the new syscall seek() (with its lseek() wrapper in unistd.h)!!
2022-10-12 15:56:03 +02:00
854f585e1a Kernel: Add a seek() system call
Now, time for libc support!!
2022-10-12 15:28:52 +02:00
97b7572933 VFS: Implement a new type of Node, VFS_DEVICE
This is used to differentiate normal files from devices.
2022-10-12 15:22:34 +02:00
96b1d1c2f2 Devices: Tell a device which name you want it to be instantiated with
This allows us to create a device in any path, with any filename.
2022-10-12 10:54:46 +02:00
eb03ae91e0 Devices: Add a new Serial device
This device permits userspace to interface with the serial port.
2022-10-12 10:44:30 +02:00
e764647133 Devices: add a new ConsoleDevice
This new device is the userspace interface to the text console/tty.
2022-10-11 21:04:50 +02:00
b1fcfd0d74 VersionDevice: Ignore offset instead of erroring out + set flags to 0 2022-10-11 21:04:14 +02:00
e67ef7778c VFS: Support writing to files 2022-10-11 21:03:30 +02:00
0a7d4a530d VFS, DeviceFS: Implement a device filesystem
For now, we just have a version device. (this will allow us to get rid of sys_getversion!!)
More should be implemented soon.
2022-10-11 19:21:16 +02:00
4aa3da8c12 VFS: Add basic mount(), unmount() and mkdir() functions (not accessible to userspace yet) 2022-10-11 18:23:00 +02:00
1278cec065 VFS: Add a 'type' flag to Nodes, implement EISDIR 2022-10-11 17:48:11 +02:00
da2ede3450 Kernel, libc, userspace: Implement file descriptors
Kernel: Implement a descriptor struct which stores the opened node and read offset, and give each task 8 of those.
Implement three syscalls: sys_read, sys_open and sys_close (sys_write still writes to the console instead of using a fd, for now)
Implement three new errors: ENOENT, EBADF and EMFILE.

libc: Implement the new errors, and the new syscalls in syscall().
Also fix _RETURN_WITH_ERRNO() to set errno correctly, which was making strerror() return null, thus crashing perror().

userspace: make init demonstrate the new file API.
2022-10-10 20:21:39 +02:00
63b2de4e3c Basic FDs 2022-10-10 19:00:24 +02:00
bbe7c6e658 VFS: Implement resolve_path and form the initial ramdisk's VFS properly
Finally, resolve_path: a function which takes a path (/etc/fstab for example), and walks the VFS:
In this case, it would start with the root FS node, and ask it: "do you have a directory/file named etc?"
The node could say 'yes', 'no', or 'i'm not a directory, I'm a file' (should not be the case for the VFS root, but for the other ones it could be)
If it says yes, we continue and ask the child if it has a file named fstab. Etc...
2022-10-10 18:44:43 +02:00
2be70d0bc1 VFS: Use 64-bit numbers in read()
There is no need for any kind of 32-bit compatibility.
2022-10-09 21:30:38 +02:00
8158ddc94f VFS: be more verbose 2022-10-09 21:19:22 +02:00
b38c52f8c7 more vfs stuff 2022-10-08 21:35:19 +02:00