DiskIO (Linux): detect device serial number

src/detection/diskio/diskio.h

@@ -13,6 +13,7 @@ typedef struct FFDiskIOResult
 {
     FFstrbuf name;
     FFstrbuf interconnect;
+    FFstrbuf serial;
     FFDiskIOPhysicalType type;
     uint64_t size;
     FFstrbuf devPath;

src/detection/diskio/diskio_linux.c

@@ -110,6 +110,12 @@ const char* ffDiskIOGetIoCounters(FFlist* result, FFDiskIOOptions* options)
             else
                 device->size = 0;
         }
+
+        {
+            ffStrbufInit(&device->serial);
+            snprintf(pathSysBlock, PATH_MAX, "/sys/block/%s/serial", devName);
+            ffReadFileBuffer(pathSysBlock, &device->serial);
+        }
     }
 
     return NULL;