Stratosphere: Fix FS permissions for <4.0.0 KIPs

stratosphere/pm/source/smm_ams.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2018 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 <switch.h>
+#include <switch/arm/atomics.h>
+#include "smm_ams.h"
+
+static Service g_smManagerAmsSrv;
+static u64 g_smManagerAmsRefcnt;
+
+Result smManagerAmsInitialize(void) {
+    atomicIncrement64(&g_smManagerAmsRefcnt);
+
+    if (serviceIsActive(&g_smManagerAmsSrv))
+        return 0;
+
+    return smGetService(&g_smManagerAmsSrv, "sm:m");
+}
+
+void smManagerAmsExit(void) {
+    if (atomicDecrement64(&g_smManagerAmsRefcnt) == 0)
+        serviceClose(&g_smManagerAmsSrv);    
+}
+
+Result smManagerAmsEndInitialDefers(void) {
+    IpcCommand c;
+    ipcInitialize(&c);
+    
+    struct {
+        u64 magic;
+        u64 cmd_id;
+    } *raw;
+
+    raw = serviceIpcPrepareHeader(&g_smManagerAmsSrv, &c, sizeof(*raw));
+    raw->magic = SFCI_MAGIC;
+    raw->cmd_id = 65000;
+
+    
+    Result rc = serviceIpcDispatch(&g_smManagerAmsSrv);
+    
+    if (R_SUCCEEDED(rc)) {
+        IpcParsedCommand r;
+        struct {
+            u64 magic;
+            u64 result;
+        } *resp;
+        
+        serviceIpcParse(&g_smManagerAmsSrv, &r, sizeof(*resp));
+        resp = r.Raw;
+
+        rc = resp->result;
+    }
+    
+    return rc;
+
+}