mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-27 14:22:17 +00:00
218 lines
8.9 KiB
C++
218 lines
8.9 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 {
|
|
|
|
Result ManageNamedPort(ams::svc::Handle *out_server_handle, KUserPointer<const char *> user_name, s32 max_sessions) {
|
|
/* Copy the provided name from user memory to kernel memory. */
|
|
char name[KObjectName::NameLengthMax] = {};
|
|
R_TRY(user_name.CopyStringTo(name, sizeof(name)));
|
|
|
|
/* Validate that sessions and name are valid. */
|
|
R_UNLESS(max_sessions >= 0, svc::ResultOutOfRange());
|
|
R_UNLESS(name[sizeof(name) - 1] == '\x00', svc::ResultOutOfRange());
|
|
|
|
if (max_sessions > 0) {
|
|
/* Get the current handle table. */
|
|
auto &handle_table = GetCurrentProcess().GetHandleTable();
|
|
|
|
/* Create a new port. */
|
|
KPort *port = KPort::Create();
|
|
R_UNLESS(port != nullptr, svc::ResultOutOfResource());
|
|
|
|
/* Reserve a handle for the server port. */
|
|
R_TRY(handle_table.Reserve(out_server_handle));
|
|
auto reserve_guard = SCOPE_GUARD { handle_table.Unreserve(*out_server_handle); };
|
|
|
|
/* Initialize the new port. */
|
|
port->Initialize(max_sessions, false, 0);
|
|
|
|
/* Register the port. */
|
|
R_TRY(KPort::Register(port));
|
|
|
|
/* Register the handle in the table. */
|
|
handle_table.Register(*out_server_handle, std::addressof(port->GetServerPort()));
|
|
reserve_guard.Cancel();
|
|
auto register_guard = SCOPE_GUARD { handle_table.Remove(*out_server_handle); };
|
|
|
|
/* Create a new object name. */
|
|
R_TRY(KObjectName::NewFromName(std::addressof(port->GetClientPort()), name));
|
|
|
|
/* Perform resource cleanup. */
|
|
port->GetServerPort().Close();
|
|
port->GetClientPort().Close();
|
|
register_guard.Cancel();
|
|
} else /* if (max_sessions == 0) */ {
|
|
/* Ensure that this else case is correct. */
|
|
MESOSPHERE_AUDIT(max_sessions == 0);
|
|
|
|
/* If we're closing, there's no server handle. */
|
|
*out_server_handle = ams::svc::InvalidHandle;
|
|
|
|
/* Delete the object. */
|
|
R_TRY(KObjectName::Delete<KClientPort>(name));
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result CreatePort(ams::svc::Handle *out_server, ams::svc::Handle *out_client, int32_t max_sessions, bool is_light, uintptr_t name) {
|
|
/* Ensure max sessions is valid. */
|
|
R_UNLESS(max_sessions > 0, svc::ResultOutOfRange());
|
|
|
|
/* Get the current handle table. */
|
|
auto &handle_table = GetCurrentProcess().GetHandleTable();
|
|
|
|
/* Create a new port. */
|
|
KPort *port = KPort::Create();
|
|
R_UNLESS(port != nullptr, svc::ResultOutOfResource());
|
|
|
|
/* Initialize the port. */
|
|
port->Initialize(max_sessions, is_light, name);
|
|
|
|
/* Ensure that we clean up the port (and its only references are handle table) on function end. */
|
|
ON_SCOPE_EXIT {
|
|
port->GetServerPort().Close();
|
|
port->GetClientPort().Close();
|
|
};
|
|
|
|
/* Register the port. */
|
|
R_TRY(KPort::Register(port));
|
|
|
|
/* Add the client to the handle table. */
|
|
R_TRY(handle_table.Add(out_client, std::addressof(port->GetClientPort())));
|
|
|
|
/* Ensure that we maintaing a clean handle state on exit. */
|
|
auto handle_guard = SCOPE_GUARD { handle_table.Remove(*out_client); };
|
|
|
|
/* Add the server to the handle table. */
|
|
R_TRY(handle_table.Add(out_server, std::addressof(port->GetServerPort())));
|
|
|
|
/* We succeeded! */
|
|
handle_guard.Cancel();
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result ConnectToNamedPort(ams::svc::Handle *out, KUserPointer<const char *> user_name) {
|
|
/* Copy the provided name from user memory to kernel memory. */
|
|
char name[KObjectName::NameLengthMax] = {};
|
|
R_TRY(user_name.CopyStringTo(name, sizeof(name)));
|
|
|
|
/* Validate that name is valid. */
|
|
R_UNLESS(name[sizeof(name) - 1] == '\x00', svc::ResultOutOfRange());
|
|
|
|
/* Get the current handle table. */
|
|
auto &handle_table = GetCurrentProcess().GetHandleTable();
|
|
|
|
/* Find the client port. */
|
|
auto port = KObjectName::Find<KClientPort>(name);
|
|
R_UNLESS(port.IsNotNull(), svc::ResultNotFound());
|
|
|
|
/* Reserve a handle for the port. */
|
|
/* NOTE: Nintendo really does write directly to the output handle here. */
|
|
R_TRY(handle_table.Reserve(out));
|
|
auto handle_guard = SCOPE_GUARD { handle_table.Unreserve(*out); };
|
|
|
|
/* Create a session. */
|
|
KClientSession *session;
|
|
R_TRY(port->CreateSession(std::addressof(session)));
|
|
|
|
/* Register the session in the table, close the extra reference. */
|
|
handle_table.Register(*out, session);
|
|
session->Close();
|
|
|
|
/* We succeeded. */
|
|
handle_guard.Cancel();
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result ConnectToPort(ams::svc::Handle *out, ams::svc::Handle port) {
|
|
/* Get the current handle table. */
|
|
auto &handle_table = GetCurrentProcess().GetHandleTable();
|
|
|
|
/* Get the client port. */
|
|
KScopedAutoObject client_port = handle_table.GetObject<KClientPort>(port);
|
|
R_UNLESS(client_port.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Reserve a handle for the port. */
|
|
/* NOTE: Nintendo really does write directly to the output handle here. */
|
|
R_TRY(handle_table.Reserve(out));
|
|
auto handle_guard = SCOPE_GUARD { handle_table.Unreserve(*out); };
|
|
|
|
/* Create and register session. */
|
|
if (client_port->IsLight()) {
|
|
KLightClientSession *session;
|
|
R_TRY(client_port->CreateLightSession(std::addressof(session)));
|
|
|
|
handle_table.Register(*out, session);
|
|
session->Close();
|
|
} else {
|
|
KClientSession *session;
|
|
R_TRY(client_port->CreateSession(std::addressof(session)));
|
|
|
|
handle_table.Register(*out, session);
|
|
session->Close();
|
|
}
|
|
|
|
/* We succeeded. */
|
|
handle_guard.Cancel();
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|
|
|
|
/* ============================= 64 ABI ============================= */
|
|
|
|
Result ConnectToNamedPort64(ams::svc::Handle *out_handle, KUserPointer<const char *> name) {
|
|
return ConnectToNamedPort(out_handle, name);
|
|
}
|
|
|
|
Result CreatePort64(ams::svc::Handle *out_server_handle, ams::svc::Handle *out_client_handle, int32_t max_sessions, bool is_light, ams::svc::Address name) {
|
|
return CreatePort(out_server_handle, out_client_handle, max_sessions, is_light, name);
|
|
}
|
|
|
|
Result ManageNamedPort64(ams::svc::Handle *out_server_handle, KUserPointer<const char *> name, int32_t max_sessions) {
|
|
return ManageNamedPort(out_server_handle, name, max_sessions);
|
|
}
|
|
|
|
Result ConnectToPort64(ams::svc::Handle *out_handle, ams::svc::Handle port) {
|
|
return ConnectToPort(out_handle, port);
|
|
}
|
|
|
|
/* ============================= 64From32 ABI ============================= */
|
|
|
|
Result ConnectToNamedPort64From32(ams::svc::Handle *out_handle, KUserPointer<const char *> name) {
|
|
return ConnectToNamedPort(out_handle, name);
|
|
}
|
|
|
|
Result CreatePort64From32(ams::svc::Handle *out_server_handle, ams::svc::Handle *out_client_handle, int32_t max_sessions, bool is_light, ams::svc::Address name) {
|
|
return CreatePort(out_server_handle, out_client_handle, max_sessions, is_light, name);
|
|
}
|
|
|
|
Result ManageNamedPort64From32(ams::svc::Handle *out_server_handle, KUserPointer<const char *> name, int32_t max_sessions) {
|
|
return ManageNamedPort(out_server_handle, name, max_sessions);
|
|
}
|
|
|
|
Result ConnectToPort64From32(ams::svc::Handle *out_handle, ams::svc::Handle port) {
|
|
return ConnectToPort(out_handle, port);
|
|
}
|
|
|
|
}
|