Add support for virtual can

einride · Sep 6, 2023 · a76f104 · a76f104
1 parent b982c06
commit a76f104
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/pkg/candevice/device_linux.go b/pkg/candevice/device_linux.go
@@ -12,7 +12,8 @@ import (
 	"golang.org/x/sys/unix"
 )
 
-const canLinkType = "can"
+const CanLinkType = "can"
+const VcanLinkType = "vcan"
 
 const (
 	StateErrorActive  = unix.CAN_STATE_ERROR_ACTIVE
@@ -146,7 +147,7 @@ func (d *Device) SetBitrate(bitrate uint32) error {
 	}
 
 	li := &linkInfoMsg{
-		linkType: canLinkType,
+		linkType: CanLinkType,
 	}
 	li.info.BitTiming.Bitrate = bitrate
 	ae := netlink.NewAttributeEncoder()
@@ -173,6 +174,7 @@ type Info struct {
 	Clock            Clock
 	CtrlMode         CtrlMode
 	BusErrorCounters BusErrorCounters
+	Type             string
 
 	State     uint32
 	RestartMs uint32
@@ -244,6 +246,7 @@ func (d *Device) unmarshalBinary(data []byte) error {
 			d.ifname = ad.String()
 		case unix.IFLA_LINKINFO:
 			ad.Nested(d.li.decode)
+			d.li.info.Type = d.li.linkType
 		default:
 		}
 	}
@@ -456,7 +459,7 @@ func (li *linkInfoMsg) decode(nad *netlink.AttributeDecoder) error {
 		switch nad.Type() {
 		case unix.IFLA_INFO_KIND:
 			li.linkType = nad.String()
-			if li.linkType != canLinkType {
+			if (li.linkType != CanLinkType) && (li.linkType != VcanLinkType) {
 				return fmt.Errorf("not a CAN interface")
 			}
 		case unix.IFLA_INFO_DATA: