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Remove always-nil deserializeFouMsg error return value

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The error is always nil. Remove it to simplify the callers.
This commit is contained in:
Tobias Klauser
2025-07-22 15:58:29 +02:00
committed by Alessandro Boch
parent 7a3403a870
commit 3d9b64dc8d
2 changed files with 42 additions and 55 deletions
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86
fou_test.go
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@@ -13,71 +13,63 @@ func TestFouDeserializeMsg(t *testing.T) {
// deserialize a valid message
msg = []byte{3, 1, 0, 0, 5, 0, 2, 0, 2, 0, 0, 0, 6, 0, 1, 0, 21, 179, 0, 0, 5, 0, 3, 0, 4, 0, 0, 0, 5, 0, 4, 0, 1, 0, 0, 0}
if fou, err := deserializeFouMsg(msg); err != nil {
t.Error(err.Error())
} else {
fou := deserializeFouMsg(msg)
// check if message was deserialized correctly
if fou.Family != FAMILY_V4 {
t.Errorf("expected family %d, got %d", FAMILY_V4, fou.Family)
}
// check if message was deserialized correctly
if fou.Family != FAMILY_V4 {
t.Errorf("expected family %d, got %d", FAMILY_V4, fou.Family)
}
if fou.Port != 5555 {
t.Errorf("expected port 5555, got %d", fou.Port)
}
if fou.Port != 5555 {
t.Errorf("expected port 5555, got %d", fou.Port)
}
if fou.Protocol != 4 { // ipip
t.Errorf("expected protocol 4, got %d", fou.Protocol)
}
if fou.Protocol != 4 { // ipip
t.Errorf("expected protocol 4, got %d", fou.Protocol)
}
if fou.EncapType != FOU_ENCAP_DIRECT {
t.Errorf("expected encap type %d, got %d", FOU_ENCAP_DIRECT, fou.EncapType)
}
if fou.EncapType != FOU_ENCAP_DIRECT {
t.Errorf("expected encap type %d, got %d", FOU_ENCAP_DIRECT, fou.EncapType)
}
// deserialize a valid message(kernel >= 5.2)
msg = []byte{3, 1, 0, 0, 5, 0, 2, 0, 2, 0, 0, 0, 6, 0, 1, 0, 43, 103, 0, 0, 6, 0, 10, 0, 86, 206, 0, 0, 5, 0, 3, 0, 0, 0, 0, 0, 5, 0, 4, 0, 2, 0, 0, 0, 8, 0, 11, 0, 0, 0, 0, 0, 8, 0, 6, 0, 1, 2, 3, 4, 8, 0, 8, 0, 5, 6, 7, 8}
if fou, err := deserializeFouMsg(msg); err != nil {
t.Error(err.Error())
} else {
if fou.Family != FAMILY_V4 {
t.Errorf("expected family %d, got %d", FAMILY_V4, fou.Family)
}
fou = deserializeFouMsg(msg)
if fou.Family != FAMILY_V4 {
t.Errorf("expected family %d, got %d", FAMILY_V4, fou.Family)
}
if fou.Port != 11111 {
t.Errorf("expected port 5555, got %d", fou.Port)
}
if fou.Port != 11111 {
t.Errorf("expected port 5555, got %d", fou.Port)
}
if fou.Protocol != 0 { // gue
t.Errorf("expected protocol 0, got %d", fou.Protocol)
}
if fou.Protocol != 0 { // gue
t.Errorf("expected protocol 0, got %d", fou.Protocol)
}
if fou.IfIndex != 0 {
t.Errorf("expected ifindex 0, got %d", fou.Protocol)
}
if fou.IfIndex != 0 {
t.Errorf("expected ifindex 0, got %d", fou.Protocol)
}
if fou.EncapType != FOU_ENCAP_GUE {
t.Errorf("expected encap type %d, got %d", FOU_ENCAP_GUE, fou.EncapType)
}
if fou.EncapType != FOU_ENCAP_GUE {
t.Errorf("expected encap type %d, got %d", FOU_ENCAP_GUE, fou.EncapType)
}
if expected := net.IPv4(1, 2, 3, 4); !fou.Local.Equal(expected) {
t.Errorf("expected local %v, got %v", expected, fou.Local)
}
if expected := net.IPv4(1, 2, 3, 4); !fou.Local.Equal(expected) {
t.Errorf("expected local %v, got %v", expected, fou.Local)
}
if expected := net.IPv4(5, 6, 7, 8); !fou.Peer.Equal(expected) {
t.Errorf("expected peer %v, got %v", expected, fou.Peer)
}
if expected := net.IPv4(5, 6, 7, 8); !fou.Peer.Equal(expected) {
t.Errorf("expected peer %v, got %v", expected, fou.Peer)
}
if fou.PeerPort != 22222 {
t.Errorf("expected peer port 0, got %d", fou.PeerPort)
}
if fou.PeerPort != 22222 {
t.Errorf("expected peer port 0, got %d", fou.PeerPort)
}
// unknown attribute should be skipped
msg = []byte{3, 1, 0, 0, 5, 0, 112, 0, 2, 0, 0, 0, 5, 0, 2, 0, 2, 0, 0}
if fou, err := deserializeFouMsg(msg); err != nil {
t.Errorf("unexpected error: %s", err.Error())
} else if fou.Family != 2 {
fou = deserializeFouMsg(msg)
if fou.Family != 2 {
t.Errorf("expected family 2, got %d", fou.Family)
}
}