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Hook up interfaces for functions to register another process

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This commit is contained in:
Marc Di Luzio 2019-02-08 18:15:43 +00:00
parent 0f7950245a
commit c5f58c56d0
4 changed files with 110 additions and 7 deletions
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46
daemon/dbus_messaging.c
View File

@ -120,6 +120,48 @@ static int method_query_status(sd_bus_message *m, void *userdata,
return sd_bus_reply_method_return(m, "i", status);
}
/**
* Handles the RegisterGameByPID D-BUS Method
*/
static int method_register_game_by_pid(sd_bus_message *m, void *userdata,
__attribute__((unused)) sd_bus_error *ret_error)
{
int callerpid = 0;
int gamepid = 0;
GameModeContext *context = userdata;
int ret = sd_bus_message_read(m, "ii", &callerpid, &gamepid);
if (ret < 0) {
LOG_ERROR("Failed to parse input parameters: %s\n", strerror(-ret));
return ret;
}
int reply = game_mode_context_register_by_pid(context, (pid_t)callerpid, (pid_t)gamepid);
return sd_bus_reply_method_return(m, "i", reply);
}
/**
* Handles the UnregisterGameByPID D-BUS Method
*/
static int method_unregister_game_by_pid(sd_bus_message *m, void *userdata,
__attribute__((unused)) sd_bus_error *ret_error)
{
int callerpid = 0;
int gamepid = 0;
GameModeContext *context = userdata;
int ret = sd_bus_message_read(m, "ii", &callerpid, &gamepid);
if (ret < 0) {
LOG_ERROR("Failed to parse input parameters: %s\n", strerror(-ret));
return ret;
}
int reply = game_mode_context_unregister_by_pid(context, (pid_t)callerpid, (pid_t)gamepid);
return sd_bus_reply_method_return(m, "i", reply);
}
/**
* D-BUS vtable to dispatch virtual methods
*/
@ -128,6 +170,10 @@ static const sd_bus_vtable gamemode_vtable[] =
SD_BUS_METHOD("RegisterGame", "i", "i", method_register_game, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("UnregisterGame", "i", "i", method_unregister_game, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("QueryStatus", "i", "i", method_query_status, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("RegisterGameByPID", "ii", "i", method_register_game_by_pid,
SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("UnregisterGameByPID", "ii", "i", method_unregister_game_by_pid,
SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END };
/**

22
daemon/gamemode.c
View File

@ -502,6 +502,28 @@ int game_mode_context_query_status(GameModeContext *self, pid_t client)
return ret;
}
/**
* Stub to register on behalf of caller
*/
int game_mode_context_register_by_pid(GameModeContext *self, pid_t callerpid, pid_t gamepid)
{
(void)self;
(void)callerpid;
(void)gamepid;
return 0;
}
/**
* Stub to unregister on behalf of caller
*/
int game_mode_context_unregister_by_pid(GameModeContext *self, pid_t callerpid, pid_t gamepid)
{
(void)self;
(void)callerpid;
(void)gamepid;
return 0;
}
/**
* Construct a new GameModeClient for the given process ID
*

22
daemon/gamemode.h
View File

@ -89,6 +89,28 @@ bool game_mode_context_unregister(GameModeContext *self, pid_t pid);
*/
int game_mode_context_query_status(GameModeContext *self, pid_t pid);
/**
* Register a new game client with the context on behalf of another process
*
* @param callerpid Process ID for the remote client making the request
* @param gamepid Process ID for the process to be registered
* @returns 0 if the request was accepted and the client could be registered
* -1 if the request was accepted but the client could not be registered
* -2 if the request was rejected
*/
int game_mode_context_register_by_pid(GameModeContext *self, pid_t callerpid, pid_t gamepid);
/**
* Unregister an existing remote game client from the context on behalf of another process
*
* @param callerpid Process ID for the remote client making the request
* @param gamepid Process ID for the process to be registered
* @returns 0 if the request was accepted and the client existed
* -1 if the request was accepted but the client did not exist
* -2 if the request was rejected
*/
int game_mode_context_unregister_by_pid(GameModeContext *self, pid_t callerpid, pid_t gamepid);
/**
* Query the config of a gamemode context
*

27
lib/client_impl.c
View File

@ -43,7 +43,7 @@ POSSIBILITY OF SUCH DAMAGE.
static char error_string[512] = { 0 };
// Simple requestor function for a gamemode
static int gamemode_request(const char *function)
static int gamemode_request(const char *function, int arg)
{
sd_bus_message *msg = NULL;
sd_bus *bus = NULL;
@ -66,8 +66,9 @@ static int gamemode_request(const char *function)
function,
NULL,
&msg,
"i",
getpid());
arg ? "ii" : "i",
getpid(),
arg);
if (ret < 0) {
snprintf(error_string,
sizeof(error_string),
@ -97,17 +98,29 @@ extern const char *real_gamemode_error_string(void)
// Wrapper to call RegisterGame
extern int real_gamemode_request_start(void)
{
return gamemode_request("RegisterGame");
return gamemode_request("RegisterGame", 0);
}
// Wrapper to call UnregisterGame
extern int real_gamemode_request_end(void)
{
return gamemode_request("UnregisterGame");
return gamemode_request("UnregisterGame", 0);
}
// Wrapper to call UnregisterGame
// Wrapper to call QueryStatus
extern int real_gamemode_query_status(void)
{
return gamemode_request("QueryStatus");
return gamemode_request("QueryStatus", 0);
}
// Wrapper to call RegisterGameByPID
extern int real_gamemode_register_start_for(pid_t pid)
{
return gamemode_request("RegisterGameByPID", pid);
}
// Wrapper to call UnregisterGameByPID
extern int real_gamemode_register_end_for(pid_t pid)
{
return gamemode_request("UnregisterGameByPID", pid);
}