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Userland: Utilize MS_NOREGULAR mount flag

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For SystemServer, we simply ensure that the /dev mount is now mounted
with MS_NOREGULAR flag to ensure only non-regular files are created,
thus, achieving what DevTmpFS provided in its implementation, but in a
much more sane and clean way than how DevTmpFS did that.

For other userland applications, we simply make them being aware of this
flag so they can show an indication about this flag being used to the
user.
This commit is contained in:
Liav A 2022-10-21 19:30:06 +03:00 • committed by Linus Groh
parent 07387ec19a
commit 5b3980b040
3 changed files with 6 additions and 1 deletions
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2
Userland/Services/SystemServer/main.cpp
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@ -380,7 +380,7 @@ static ErrorOr<void> prepare_synthetic_filesystems()
// FIXME: Find a better way to all of this stuff, without hardcoding all of this!
TRY(Core::System::mount(-1, "/proc"sv, "proc"sv, MS_NOSUID));
TRY(Core::System::mount(-1, "/sys"sv, "sys"sv, 0));
TRY(Core::System::mount(-1, "/dev"sv, "tmp"sv, MS_NOSUID | MS_NOEXEC));
TRY(Core::System::mount(-1, "/dev"sv, "tmp"sv, MS_NOSUID | MS_NOEXEC | MS_NOREGULAR));
TRY(Core::System::mkdir("/dev/audio"sv, 0755));
TRY(Core::System::mkdir("/dev/input"sv, 0755));