mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-11 01:06:01 +03:00
2a78bf8596
The Process::Handler type has KResultOr<FlatPtr> as its return type. Using a different return type with an equally-sized template parameter sort of works but breaks once that condition is no longer true, e.g. for KResultOr<int> on x86_64. Ideally the syscall handlers would also take FlatPtrs as their args so we can get rid of the reinterpret_cast for the function pointer but I didn't quite feel like cleaning that up as well.
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/Types.h>
|
|
#include <Kernel/Process.h>
|
|
|
|
namespace Kernel {
|
|
|
|
KResultOr<FlatPtr> Process::sys$getpid()
|
|
{
|
|
REQUIRE_PROMISE(stdio);
|
|
return pid().value();
|
|
}
|
|
|
|
KResultOr<FlatPtr> Process::sys$getppid()
|
|
{
|
|
REQUIRE_PROMISE(stdio);
|
|
return m_ppid.value();
|
|
}
|
|
|
|
KResultOr<FlatPtr> Process::sys$get_process_name(Userspace<char*> buffer, size_t buffer_size)
|
|
{
|
|
REQUIRE_PROMISE(stdio);
|
|
if (m_name.length() + 1 > buffer_size)
|
|
return ENAMETOOLONG;
|
|
|
|
if (!copy_to_user(buffer, m_name.characters(), m_name.length() + 1))
|
|
return EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
KResultOr<FlatPtr> Process::sys$set_process_name(Userspace<const char*> user_name, size_t user_name_length)
|
|
{
|
|
REQUIRE_PROMISE(proc);
|
|
if (user_name_length > 256)
|
|
return ENAMETOOLONG;
|
|
auto name = copy_string_from_user(user_name, user_name_length);
|
|
if (name.is_null())
|
|
return EFAULT;
|
|
// Empty and whitespace-only names only exist to confuse users.
|
|
if (name.is_whitespace())
|
|
return EINVAL;
|
|
m_name = move(name);
|
|
return 0;
|
|
}
|
|
|
|
KResultOr<FlatPtr> Process::sys$set_coredump_metadata(Userspace<const Syscall::SC_set_coredump_metadata_params*> user_params)
|
|
{
|
|
Syscall::SC_set_coredump_metadata_params params;
|
|
if (!copy_from_user(¶ms, user_params))
|
|
return EFAULT;
|
|
if (params.key.length == 0 || params.key.length > 16 * KiB)
|
|
return EINVAL;
|
|
if (params.value.length > 16 * KiB)
|
|
return EINVAL;
|
|
auto copied_key = copy_string_from_user(params.key.characters, params.key.length);
|
|
if (copied_key.is_null())
|
|
return EFAULT;
|
|
auto copied_value = copy_string_from_user(params.value.characters, params.value.length);
|
|
if (copied_value.is_null())
|
|
return EFAULT;
|
|
if (!m_coredump_metadata.contains(copied_key) && m_coredump_metadata.size() >= 16)
|
|
return EFAULT;
|
|
m_coredump_metadata.set(move(copied_key), move(copied_value));
|
|
return 0;
|
|
}
|
|
|
|
}
|