mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-30 07:42:13 +00:00
128 lines
5 KiB
C++
128 lines
5 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern::svc {
|
|
|
|
/* ============================= Common ============================= */
|
|
|
|
namespace {
|
|
|
|
template<typename T>
|
|
Result CreateSession(ams::svc::Handle *out_server, ams::svc::Handle *out_client, uintptr_t name) {
|
|
/* Get the current process and handle table. */
|
|
auto &process = GetCurrentProcess();
|
|
auto &handle_table = process.GetHandleTable();
|
|
|
|
/* Reserve a new session from the process resource limit. */
|
|
KScopedResourceReservation session_reservation(std::addressof(process), ams::svc::LimitableResource_SessionCountMax);
|
|
R_UNLESS(session_reservation.Succeeded(), svc::ResultLimitReached());
|
|
|
|
/* Create a new session. */
|
|
T *session = T::Create();
|
|
R_UNLESS(session != nullptr, svc::ResultOutOfResource());
|
|
|
|
/* Initialize the session. */
|
|
session->Initialize(nullptr, name);
|
|
|
|
/* Commit the session reservation. */
|
|
session_reservation.Commit();
|
|
|
|
/* Ensure that we clean up the session (and its only references are handle table) on function end. */
|
|
ON_SCOPE_EXIT {
|
|
session->GetClientSession().Close();
|
|
session->GetServerSession().Close();
|
|
};
|
|
|
|
/* Register the session. */
|
|
T::Register(session);
|
|
|
|
/* Add the server session to the handle table. */
|
|
R_TRY(handle_table.Add(out_server, std::addressof(session->GetServerSession())));
|
|
|
|
/* Ensure that we maintaing a clean handle state on exit. */
|
|
auto handle_guard = SCOPE_GUARD { handle_table.Remove(*out_server); };
|
|
|
|
/* Add the client session to the handle table. */
|
|
R_TRY(handle_table.Add(out_client, std::addressof(session->GetClientSession())));
|
|
|
|
/* We succeeded! */
|
|
handle_guard.Cancel();
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result CreateSession(ams::svc::Handle *out_server, ams::svc::Handle *out_client, bool is_light, uintptr_t name) {
|
|
if (is_light) {
|
|
return CreateSession<KLightSession>(out_server, out_client, name);
|
|
} else {
|
|
return CreateSession<KSession>(out_server, out_client, name);
|
|
}
|
|
}
|
|
|
|
Result AcceptSession(ams::svc::Handle *out, ams::svc::Handle port_handle) {
|
|
/* Get the current handle table. */
|
|
auto &handle_table = GetCurrentProcess().GetHandleTable();
|
|
|
|
/* Get the server port. */
|
|
KScopedAutoObject port = handle_table.GetObject<KServerPort>(port_handle);
|
|
R_UNLESS(port.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Reserve an entry for the new session. */
|
|
R_TRY(handle_table.Reserve(out));
|
|
auto handle_guard = SCOPE_GUARD { handle_table.Unreserve(*out); };
|
|
|
|
/* Accept the session. */
|
|
KAutoObject *session;
|
|
if (port->IsLight()) {
|
|
session = port->AcceptLightSession();
|
|
} else {
|
|
session = port->AcceptSession();
|
|
}
|
|
|
|
/* Ensure we accepted successfully. */
|
|
R_UNLESS(session != nullptr, svc::ResultNotFound());
|
|
|
|
/* Register the session. */
|
|
handle_table.Register(*out, session);
|
|
handle_guard.Cancel();
|
|
session->Close();
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|
|
|
|
/* ============================= 64 ABI ============================= */
|
|
|
|
Result CreateSession64(ams::svc::Handle *out_server_session_handle, ams::svc::Handle *out_client_session_handle, bool is_light, ams::svc::Address name) {
|
|
return CreateSession(out_server_session_handle, out_client_session_handle, is_light, name);
|
|
}
|
|
|
|
Result AcceptSession64(ams::svc::Handle *out_handle, ams::svc::Handle port) {
|
|
return AcceptSession(out_handle, port);
|
|
}
|
|
|
|
/* ============================= 64From32 ABI ============================= */
|
|
|
|
Result CreateSession64From32(ams::svc::Handle *out_server_session_handle, ams::svc::Handle *out_client_session_handle, bool is_light, ams::svc::Address name) {
|
|
return CreateSession(out_server_session_handle, out_client_session_handle, is_light, name);
|
|
}
|
|
|
|
Result AcceptSession64From32(ams::svc::Handle *out_handle, ams::svc::Handle port) {
|
|
return AcceptSession(out_handle, port);
|
|
}
|
|
|
|
}
|