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Kernel+Userland: Add mount MS_SRCHIDDEN option

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Either we mount from a loop device or other source, the user might want
to obfuscate the given source for security reasons, so this option will
ensure this will happen.
If passed during a mount, the source will be hidden when reading from
the /sys/kernel/df node.
This commit is contained in:
Liav A 2024-02-10 12:27:32 +02:00 • committed by Andrew Kaster
parent 0739b5df11
commit 0734de9f9a
3 changed files with 21 additions and 11 deletions
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4
Userland/Utilities/mount.cpp
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@ -43,6 +43,8 @@ static int parse_options(StringView options)
flags |= MS_AXALLOWED;
else if (part == "noregular")
flags |= MS_NOREGULAR;
else if (part == "srchidden")
flags |= MS_SRCHIDDEN;
else
warnln("Ignoring invalid option: {}", part);
}
@ -181,6 +183,8 @@ static ErrorOr<void> print_mounts()
out(",nodev");
if (mount_flags & MS_NOREGULAR)
out(",noregular");
if (mount_flags & MS_SRCHIDDEN)
out(",srcobfuscate");
if (mount_flags & MS_NOEXEC)
out(",noexec");
if (mount_flags & MS_NOSUID)