update mode to skip firmware checks and setupDetector, kernel check added to m3and g2

slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c

@@ -22,6 +22,7 @@
 
 // Global variable from slsDetectorServer_funcs
 extern int debugflag;
+extern int updateFlag;
 extern int checkModuleFlag;
 extern udpStruct udpDetails;
 extern const enum detectorType myDetectorType;
@@ -92,8 +93,9 @@ void basictests() {
         return;
     }
     // does check only if flag is 0 (by default), set by command line
-    if ((!debugflag) && ((checkType() == FAIL) || (testFpga() == FAIL) ||
-                         (testBus() == FAIL))) {
+    if ((!debugflag) && (!updateFlag) &&
+        ((checkKernelVersion() == FAIL) || (checkType() == FAIL) ||
+         (testFpga() == FAIL) || (testBus() == FAIL))) {
         sprintf(initErrorMessage,
                 "Could not pass basic tests of FPGA and bus. Dangerous to "
                 "continue. (Firmware version:0x%llx) \n",
@@ -131,7 +133,7 @@ void basictests() {
          (long long int)client_sw_apiversion));
 
     // return if flag is not zero, debug mode
-    if (debugflag) {
+    if (debugflag || updateFlag) {
         return;
     }
 
@@ -175,6 +177,25 @@ void basictests() {
 #endif
 }
 
+int checkKernelVersion() {
+#ifdef VIRTUAL
+    return OK;
+#endif
+    char output[256];
+    memset(output, 0, 256);
+    FILE *sysFile = popen("uname -a | cut -d ' ' -f5-10", "r");
+    fgets(output, sizeof(output), sysFile);
+    pclose(sysFile);
+
+    if (strstr(output, KERNEL_DATE_VRSN) == NULL) {
+        LOG(logERROR, ("Kernel Version Incompatible! Expected: %s, Got: %s\n",
+                       KERNEL_DATE_VRSN, output));
+        return FAIL;
+    }
+    LOG(logINFO, ("Kernel Version Compatible: %s\n", output));
+    return OK;
+}
+
 int checkType() {
 #ifdef VIRTUAL
     return OK;
@@ -326,7 +347,7 @@ u_int32_t getDetectorIP() {
 /* initialization */
 
 void initControlServer() {
-    if (initError == OK) {
+    if (!updateFlag && initError == OK) {
         setupDetector();
     }
     initCheckDone = 1;

slsDetectorServers/gotthard2DetectorServer/slsDetectorServer_defs.h

@@ -2,6 +2,7 @@
 #include "sls_detector_defs.h"
 
 #define REQRD_FRMWRE_VRSN (0x200707)
+#define KERNEL_DATE_VRSN  "Wed May 20 13:58:38 CEST 2020"
 
 #define CTRL_SRVR_INIT_TIME_US (300 * 1000)