Splitting cmd_xxx() functions in separate files.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

src/hsm/cmd_delete_file.c

@@ -0,0 +1,40 @@
+/* 
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ * 
+ * This program is free software: you can redistribute it and/or modify  
+ * it under the terms of the GNU General Public License as published by  
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that 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 "sc_hsm.h"
+
+int cmd_delete_file() {
+    file_t *ef = NULL;
+    if (!isUserAuthenticated)
+        return SW_SECURITY_STATUS_NOT_SATISFIED();
+        
+    if (apdu.nc == 0) {
+        ef = currentEF;
+        if (!(ef = search_dynamic_file(ef->fid)))
+            return SW_FILE_NOT_FOUND();
+    }
+    else {
+        uint16_t fid = (apdu.data[0] << 8) | apdu.data[1];
+        if (!(ef = search_dynamic_file(fid)))
+            return SW_FILE_NOT_FOUND();
+    }
+    if (!authenticate_action(ef, ACL_OP_DELETE_SELF))
+        return SW_SECURITY_STATUS_NOT_SATISFIED();
+    if (delete_file(ef) != CCID_OK)
+        return SW_EXEC_ERROR();
+    return SW_OK();
+}