RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 07:57:46 +00:00
Code Issues Activity Actions

Kernel: mount system call (#396)

Browse source 
It is now possible to mount ext2 `DiskDevice` devices under Serenity on
any folder in the root filesystem. Currently any user can do this with
any permissions. There's a fair amount of assumptions made here too,
that might not be too good, but can be worked on in the future. This is
a good start to allow more dynamic operation under the OS itself.

It is also currently impossible to unmount and such, and devices will
fail to mount in Linux as the FS 'needs to be cleaned'. I'll work on
getting `umount` done ASAP to rectify this (as well as working on less
assumption-making in the mount syscall. We don't want to just be able
to mount DiskDevices!). This could probably be fixed with some `-t`
flag or something similar.
This commit is contained in:
Jesse 2019-08-02 23:18:47 +10:00 • committed by Andreas Kling
parent 3f91d2d0cc
commit 401c87a0cc
17 changed files with 123 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

29
Userland/mount.cpp Normal file
View file

@ -0,0 +1,29 @@
#include <LibCore/CArgsParser.h>
#include <stdio.h>
#include <unistd.h>
// This version of 'mount' must have the following arguments
// 'mount <device_path> <mount_point>
// It can currently only mount _physical_ devices found in /dev
//
// Currently, it is only possible to mount ext2 devices. Sorry! :^)
int main(int argc, char** argv)
{
CArgsParser args_parser("mount");
args_parser.add_arg("devname", "device path");
args_parser.add_arg("mountpoint", "mount point");
CArgsParserResult args = args_parser.parse(argc, argv);
if (argc == 3) {
// Let's use lstat so we can convert devname into a major/minor device pair!
if (mount(argv[1], argv[2]) < 0) {
perror("mount");
return 1;
}
} else {
args_parser.print_usage();
return 0;
}
return 0;
}