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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Types.h>
#include <Kernel/Process.h>
namespace Kernel {
KResultOr<pid_t> Process::sys$getpid()
{
REQUIRE_PROMISE(stdio);
return pid().value();
}
KResultOr<pid_t> Process::sys$getppid()
{
REQUIRE_PROMISE(stdio);
return m_ppid.value();
}
KResultOr<int> Process::sys$get_process_name(Userspace<char*> buffer, size_t buffer_size)
{
REQUIRE_PROMISE(stdio);
if (m_name.length() + 1 > buffer_size)
return ENAMETOOLONG;
if (!copy_to_user(buffer, m_name.characters(), m_name.length() + 1))
return EFAULT;
return 0;
}
KResultOr<int> Process::sys$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<int> 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;
}
}
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