Merge pull request 'Ignore system drives as live image' (#71) from bugfix/systemdrive_live into master

Reviewed-on: #71

README.md

@@ -9,7 +9,7 @@
 * process multiple drives at once
 
 ## Download USB Image ##
-[2.5GB image v1.0.0](https://schuttercloud.com/s/ggxGH9sA326aRfK)   (`wget` is your friend)
+See reHDD-Bootable how the live image created: https://git.mosad.xyz/localhorst/reHDD-Bootable
 
 Use [Etcher](https://www.balena.io/etcher/#download) or `dd` to create an bootable USB drive .
 

include/drive.h

@@ -34,6 +34,7 @@ public:
     } sShredSpeed;
 
     bool bWasShredded = false; // all shred iterations done
+    bool bWasShredStarted = false; // shred was atleast once started
     bool bWasChecked = false;  // all shred iterations and optional checking done
     bool bWasDeleted = false;
     bool bIsOffline = false;

include/reHDD.h

@@ -8,7 +8,7 @@
 #ifndef REHDD_H_
 #define REHDD_H_
 
-#define REHDD_VERSION "V1.1.2"
+#define REHDD_VERSION "V1.1.3"
 
 // Drive handling Settings
 #define WORSE_HOURS 19200    // mark drive if at this limit or beyond
@@ -31,7 +31,7 @@
 #endif
 
 // Logic
-//#define DRYRUN //don´t touch the drives
+//#define DRYRUN       // don't touch the drives
 #define FROZEN_ALERT // show alert if drive is frozen
 #define ZERO_CHECK   // check drive after shred if all bytes are zero, show alert if this fails
 
@@ -101,6 +101,7 @@ private:
     static void handleESC();
     static void handleAbort();
     static Drive *getSelectedDrive();
+    static bool getSystemDrive(string &systemDrive);
 };
 
 #endif // REHDD_H_

src/delete.cpp

@@ -32,6 +32,9 @@ void Delete::deleteDrive(Drive *drive)
     const char *cpComand = sCMD.c_str();
     // cout << "delete: " << cpComand << endl;
 
+    if (drive->bWasShredStarted == false)
+    {
+        //only start delete if the drive was not shredded before
         FILE *deleteCmdOutput = popen(cpComand, "r");
 
         while ((getline(&cLine, &len, deleteCmdOutput)) != -1)
@@ -40,3 +43,4 @@ void Delete::deleteDrive(Drive *drive)
         }
         pclose(deleteCmdOutput);
     }
+}

src/reHDD.cpp

@@ -344,6 +344,26 @@ void reHDD::searchDrives(list<Drive> *plistDrives)
  */
 void reHDD::filterIgnoredDrives(list<Drive> *plistDrives)
 {
+    string systemDrivePath;
+    if (getSystemDrive(systemDrivePath))
+    {
+        // Logger::logThis()->info("Found system drive: " + systemDrivePath);
+
+        list<Drive>::iterator it;
+        for (it = plistDrives->begin(); it != plistDrives->end(); ++it)
+        {
+            if (it->getPath().find(systemDrivePath) != std::string::npos) // compare found system drive and current drive
+            {
+                // system drive found --> ignore this drive
+#ifdef LOG_LEVEL_HIGH
+                Logger::logThis()->info("system drive found --> ignore this drive: " + it->getPath());
+#endif
+                it = plistDrives->erase(it);
+                it--;
+            }
+        }
+    }
+
     list<tuple<string>> vtlIgnoredDevices; // store drives from ignore file
     ifstream input("ignoreDrives.conf");   // read ignore file
 
@@ -605,3 +625,59 @@ void reHDD::handleAbort()
         }
     }
 }
+
+bool reHDD::getSystemDrive(string &systemDrive)
+{
+    char *cLine = NULL;
+    size_t len = 0;
+    bool systemDriveFound = false;
+
+    FILE *outputfileHwinfo = popen("lsblk -e 11 -o NAME,MOUNTPOINT", "r");
+
+    if (outputfileHwinfo == NULL)
+    {
+        Logger::logThis()->error("Unable to scan attached drives for system drive");
+        exit(EXIT_FAILURE);
+    }
+
+    while ((getline(&cLine, &len, outputfileHwinfo)) != -1)
+    {
+        string currentLine = cLine;
+
+        if (currentLine.find("NAME") != std::string::npos)
+        {
+            continue;
+        }
+
+        // Logger::logThis()->info(currentLine);
+
+        if ((cLine[0U] != '|') && (cLine[0U] != '`'))
+        {
+            systemDrive = currentLine;
+            systemDrive.erase(std::remove(systemDrive.begin(), systemDrive.end(), '\n'), systemDrive.end()); // remove newline
+            systemDrive.erase(std::remove(systemDrive.begin(), systemDrive.end(), ' '), systemDrive.end());  // remove spaces
+            // Logger::logThis()->info("Drive found: " + systemDrive);
+        }
+
+        if (currentLine.ends_with(" /boot/efi\n"s))
+        {
+            systemDriveFound = true;
+            break;
+        }
+
+        if (currentLine.ends_with(" /run/overlay/live\n"s))
+        {
+            systemDriveFound = true;
+            break;
+        }
+
+        if (currentLine.ends_with(" /\n"s))
+        {
+            systemDriveFound = true;
+            break;
+        }
+    }
+    pclose(outputfileHwinfo);
+
+    return systemDriveFound;
+}

src/shred.cpp

@@ -36,6 +36,7 @@ int Shred::shredDrive(Drive *drive, int *ipSignalFd)
     ostringstream address;
     address << (void const *)&(*drive);
     Logger::logThis()->info("Shred-Task started - Drive: " + drive->getModelName() + "-" + drive->getSerial() + " @" + address.str());
+    drive->bWasShredStarted = true; //Mark drive as partly shredded
 
 #ifdef DRYRUN
     for (int i = 0; i <= 500; i++)
@@ -48,6 +49,7 @@ int Shred::shredDrive(Drive *drive, int *ipSignalFd)
         write(*ipSignalFd, "A", 1);
         usleep(20000);
     }
+    drive->bWasShredded = true;
 #endif
 
 #ifndef DRYRUN

src/tui.cpp

@@ -613,6 +613,7 @@ void TUI::vTruncateText(string *psText, uint16_t u16MaxLenght)
 void TUI::displaySelectedDrive(Drive drive, int stdscrX, int stdscrY)
 {
     struct MenuState menustate;
+    static bool dialogIsActive;
     menustate.bAbort = false;
     menustate.bConfirmDelete = false;
     menustate.bConfirmShred = false;
@@ -659,15 +660,21 @@ void TUI::displaySelectedDrive(Drive drive, int stdscrX, int stdscrY)
     {
         dialog = createDialog(40, 10, ((stdscrX) - (int)(stdscrX / 3) - 7) - (int)((stdscrX / 3) + 5) / 2, (int)(stdscrY / 2) - 5, "Confirm SHRED", "Press ENTER for SHRED", "Press ESC for cancel");
         wrefresh(dialog);
+        dialogIsActive = true;
     }
     else if (menustate.bConfirmDelete == true)
     {
         dialog = createDialog(40, 10, ((stdscrX) - (int)(stdscrX / 3) - 7) - (int)((stdscrX / 3) + 5) / 2, (int)(stdscrY / 2) - 5, "Confirm DELETE", "Press ENTER for DELETE", "Press ESC for cancel");
         wrefresh(dialog);
+        dialogIsActive = true;
     }
     else
+    {
+        if (dialogIsActive)
         {
             delwin(dialog);
+            dialogIsActive = false;
+        }
     }
 }