static void TestCovertToUserName(void)
{
char userName[100];
LE_ASSERT(user_AppNameToUserName(APP_NAME, userName, sizeof(userName)) == LE_OK);
LE_ASSERT(strcmp(userName, APP_USER_NAME) == 0);
}
//--------------------------------------------------------------------------------------------------
static void GetAppIds
(
app_Ref_t appRef, ///< [IN] App ref.
const char* appNamePtr, ///< [IN] App name.
uid_t* uidPtr, ///< [OUT] Location to store the app's user ID.
gid_t* gidPtr, ///< [OUT] Location to store the app's primary group ID.
char* userNamePtr, ///< [OUT] Location to store the app user name
size_t userNameLen ///< [IN] Size of userNamePtr
)
{
INTERNAL_ERR_IF(user_AppNameToUserName(appNamePtr, userNamePtr, userNameLen) != LE_OK,
"userName buffer too small.");
*uidPtr = app_GetUid(appRef);
*gidPtr = app_GetGid(appRef);
}
//--------------------------------------------------------------------------------------------------
static le_result_t GetServerUid
(
le_cfg_IteratorRef_t i, ///< [in] Config tree iterator positioned at binding config.
uid_t* uidPtr ///< [out] The application's user ID.
)
//--------------------------------------------------------------------------------------------------
{
le_result_t result;
char userName[LIMIT_MAX_USER_NAME_BYTES];
// If an app name is present in the binding config,
if (le_cfg_NodeExists(i, "app"))
{
// Make sure there isn't also a user name.
if (le_cfg_NodeExists(i, "user"))
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "", path, sizeof(path));
LE_CRIT("Both server user and app nodes appear under binding (@ %s)", path);
return LE_DUPLICATE;
}
// Get the app name.
char appName[LIMIT_MAX_APP_NAME_BYTES];
result = le_cfg_GetString(i, "app", appName, sizeof(appName), "");
if (result != LE_OK)
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "app", path, sizeof(path));
LE_CRIT("Server app name too big (@ %s)", path);
return result;
}
if (appName[0] == '\0')
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "app", path, sizeof(path));
LE_CRIT("Server app name empty (@ %s)", path);
return LE_NOT_FOUND;
}
// Find out if the server app is sandboxed. If not, it runs as root.
char path[LIMIT_MAX_PATH_BYTES];
if (snprintf(path, sizeof(path), "/apps/%s/sandboxed", appName) >= sizeof(path))
{
LE_CRIT("Config node path too long (app name '%s').", appName);
return LE_OVERFLOW;
}
if (!le_cfg_GetBool(i, path, true))
{
*uidPtr = 0;
return LE_OK;
}
// It is not sandboxed. Convert the app name into a user name.
result = user_AppNameToUserName(appName, userName, sizeof(userName));
if (result != LE_OK)
{
LE_CRIT("Failed to convert app name '%s' into a user name.", appName);
return result;
}
}
// If a server app name is not present in the binding config,
else
{
// Get the server user name instead.
result = le_cfg_GetString(i, "user", userName, sizeof(userName), "");
if (result != LE_OK)
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "user", path, sizeof(path));
LE_CRIT("Server user name too big (@ %s)", path);
return result;
}
if (userName[0] == '\0')
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "", path, sizeof(path));
LE_CRIT("Server user name or app name missing (@ %s)", path);
return LE_NOT_FOUND;
}
}
// Convert the server's user name into a user ID.
result = user_GetUid(userName, uidPtr);
if (result != LE_OK)
{
// Note: This can happen if the server application isn't installed yet.
// When the server application is installed, sdir load will be run
// again and the bindings will be correctly set up at that time.
if (strncmp(userName, "app", 3) == 0)
{
LE_DEBUG("Couldn't get UID for application '%s'. Perhaps it is not installed yet?",
userName + 3);
}
else
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "", path, sizeof(path));
LE_CRIT("Couldn't convert server user name '%s' to UID (%s @ %s)",
userName,
LE_RESULT_TXT(result),
path);
}
return result;
}
return LE_OK;
}
