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
50cda50f01
Kernel, libc: Add F_GETFD, F_SETFD and FD_CLOEXEC
2022-10-27 17:17:24 +02:00
ec2c314234
Kernel: Add /dev/null
2022-10-25 17:59:55 +02:00
8bf2904d74
libc: Implement a basic subset of dirent.h
2022-10-23 14:41:45 +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
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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
47bdfecedb
Devices: Add /dev/uptime
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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
18fbccafb7
VFS: add an exists() function
2022-10-16 16:58:18 +02:00
f8154ce230
Kernel: Implement mkdir() from a single path
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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 :)
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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
854f585e1a
Kernel: Add a seek() system call
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Now, time for libc support!!
2022-10-12 15:28:52 +02:00
97b7572933
VFS: Implement a new type of Node, VFS_DEVICE
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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
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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
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This device permits userspace to interface with the serial port.
2022-10-12 10:44:30 +02:00
e764647133
Devices: add a new ConsoleDevice
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This new device is the userspace interface to the text console/tty.
2022-10-11 21:04:50 +02:00
e67ef7778c
VFS: Support writing to files
2022-10-11 21:03:30 +02:00
04da26bff5
kernel: add a few comments
2022-10-11 19:51:24 +02:00
0a7d4a530d
VFS, DeviceFS: Implement a device filesystem
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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
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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
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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()
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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
f3d7e220ac
The beginnings of a VFS implementation!!
2022-10-08 21:22:46 +02:00
a086ec514b
Remove the Superblock.h file which has never been used.
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This file was included for a future Ext2 implementation. It should be included when said Ext2 implementation is actually started.
2022-10-08 13:28:30 +02:00
1b727a66ea
Ready. Set. Go!
2022-09-05 16:13:51 +02:00
