Detect iSCSI devices

pkg/block/block.go

@@ -29,6 +29,7 @@ const (
 	DRIVE_TYPE_FDD               // Floppy disk drive
 	DRIVE_TYPE_ODD               // Optical disk drive
 	DRIVE_TYPE_SSD               // Solid-state drive
+	DRIVE_TYPE_ISCSI             // iSCSI drive
 )
 
 var (
@@ -38,6 +39,7 @@ var (
 		DRIVE_TYPE_FDD:     "FDD",
 		DRIVE_TYPE_ODD:     "ODD",
 		DRIVE_TYPE_SSD:     "SSD",
+		DRIVE_TYPE_ISCSI:   "ISCSI",
 	}
 
 	// NOTE(fromani): the keys are all lowercase and do not match
@@ -51,6 +53,7 @@ var (
 		"fdd":     DRIVE_TYPE_FDD,
 		"odd":     DRIVE_TYPE_ODD,
 		"ssd":     DRIVE_TYPE_SSD,
+		"iscsi":   DRIVE_TYPE_ISCSI,
 	}
 )
 

pkg/block/block_linux.go

@@ -277,6 +277,9 @@ func disks(ctx *context.Context, paths *linuxpath.Paths) []*Disk {
 		size := diskSizeBytes(paths, dname)
 		pbs := diskPhysicalBlockSizeBytes(paths, dname)
 		busPath := diskBusPath(paths, dname)
+		if strings.Contains(busPath, "-iscsi-") {
+			driveType = DRIVE_TYPE_ISCSI
+		}
 		node := diskNUMANodeID(paths, dname)
 		vendor := diskVendor(paths, dname)
 		model := diskModel(paths, dname)

pkg/block/block_linux_test.go

@@ -10,9 +10,14 @@
 package block
 
 import (
+	"io/ioutil"
 	"os"
+	"path/filepath"
 	"reflect"
 	"testing"
+
+	"github.com/jaypipes/ghw/pkg/context"
+	"github.com/jaypipes/ghw/pkg/linuxpath"
 )
 
 func TestParseMountEntry(t *testing.T) {
@@ -179,3 +184,37 @@ func TestDiskTypes(t *testing.T) {
 		}
 	}
 }
+
+func TestISCSI(t *testing.T) {
+	if _, ok := os.LookupEnv("GHW_TESTING_SKIP_BLOCK"); ok {
+		t.Skip("Skipping block tests.")
+	}
+
+	baseDir, _ := ioutil.TempDir("", "test")
+	defer os.RemoveAll(baseDir)
+	ctx := context.New()
+	ctx.Chroot = baseDir
+	paths := linuxpath.New(ctx)
+
+	_ = os.MkdirAll(paths.SysBlock, 0755)
+	_ = os.MkdirAll(paths.RunUdevData, 0755)
+
+	// Emulate an iSCSI device
+	_ = os.Mkdir(filepath.Join(paths.SysBlock, "sda"), 0755)
+	_ = ioutil.WriteFile(filepath.Join(paths.SysBlock, "sda", "size"), []byte("500118192\n"), 0644)
+	_ = ioutil.WriteFile(filepath.Join(paths.SysBlock, "sda", "dev"), []byte("259:0\n"), 0644)
+	_ = os.Mkdir(filepath.Join(paths.SysBlock, "sda", "queue"), 0755)
+	_ = ioutil.WriteFile(filepath.Join(paths.SysBlock, "sda", "queue", "rotational"), []byte("0\n"), 0644)
+	_ = ioutil.WriteFile(filepath.Join(paths.SysBlock, "sda", "queue", "physical_block_size"), []byte("512\n"), 0644)
+	_ = os.Mkdir(filepath.Join(paths.SysBlock, "sda", "device"), 0755)
+	_ = ioutil.WriteFile(filepath.Join(paths.SysBlock, "sda", "device", "vendor"), []byte("LIO-ORG\n"), 0644)
+	udevData := "E:ID_MODEL=disk0\nE:ID_SERIAL=6001405961d8b6f55cf48beb0de296b2\n" +
+		"E:ID_PATH=ip-192.168.130.10:3260-iscsi-iqn.2022-01.com.redhat.foo:disk0-lun-0\n" +
+		"E:ID_WWN=0x6001405961d8b6f55cf48beb0de296b2\n"
+	_ = ioutil.WriteFile(filepath.Join(paths.RunUdevData, "b259:0"), []byte(udevData), 0644)
+
+	diskInventory := disks(ctx, paths)
+	if diskInventory[0].DriveType != DRIVE_TYPE_ISCSI {
+		t.Fatalf("Got drive type %s, but expected ISCSI", diskInventory[0].DriveType)
+	}
+}