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Kernel: Use Userspace<T> for the getrandom syscall

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This commit is contained in:
Brian Gianforcaro 2020-08-09 15:35:06 -07:00 • committed by Andreas Kling
parent c8ae244ab8
commit b5a2a215f6
2 changed files with 4 additions and 3 deletions
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5
Kernel/Syscalls/getrandom.cpp
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@ -32,7 +32,7 @@ namespace Kernel {
// We don't use the flag yet, but we could use it for distinguishing
// random source like Linux, unlike the OpenBSD equivalent. However, if we
// do, we should be able of the caveats that Linux has dealt with.
ssize_t Process::sys$getrandom(void* buffer, size_t buffer_size, [[maybe_unused]] unsigned flags)
ssize_t Process::sys$getrandom(Userspace<void*> buffer, size_t buffer_size, [[maybe_unused]] unsigned flags)
{
REQUIRE_PROMISE(stdio);
if (buffer_size <= 0)
@ -42,7 +42,8 @@ ssize_t Process::sys$getrandom(void* buffer, size_t buffer_size, [[maybe_unused]
return -EFAULT;
SmapDisabler disabler;
get_good_random_bytes((u8*)buffer, buffer_size);
// FIXME: We should really push Userspace<T> down through the interface.
get_good_random_bytes((u8*)buffer.ptr(), buffer_size);
return 0;
}