From 6229d9d07dc16cb4b4f7b35716a59b9432bbd651 Mon Sep 17 00:00:00 2001 From: Valentin Rothberg Date: Thu, 4 Jun 2020 09:37:27 +0200 Subject: /images/.../json: fix port parsing Fix a bug when parsing the `ExposedPorts` of the image that lead to panics when the field was set. The OCI image spec allows three valid formats: `tcp/port`, `udp/port` and `port` Fixes: #6490 Reported-by: @jgallucci32 Signed-off-by: Valentin Rothberg --- pkg/api/handlers/types.go | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) (limited to 'pkg') diff --git a/pkg/api/handlers/types.go b/pkg/api/handlers/types.go index aa3d0fe91..79aeff2f8 100644 --- a/pkg/api/handlers/types.go +++ b/pkg/api/handlers/types.go @@ -334,16 +334,25 @@ func ImageDataToImageInspect(ctx context.Context, l *libpodImage.Image) (*ImageI func portsToPortSet(input map[string]struct{}) (nat.PortSet, error) { ports := make(nat.PortSet) for k := range input { - npTCP, err := nat.NewPort("tcp", k) - if err != nil { - return nil, errors.Wrapf(err, "unable to create tcp port from %s", k) - } - npUDP, err := nat.NewPort("udp", k) - if err != nil { - return nil, errors.Wrapf(err, "unable to create udp port from %s", k) + proto, port := nat.SplitProtoPort(k) + switch proto { + // See the OCI image spec for details: + // https://github.com/opencontainers/image-spec/blob/e562b04403929d582d449ae5386ff79dd7961a11/config.md#properties + case "tcp", "": + p, err := nat.NewPort("tcp", port) + if err != nil { + return nil, errors.Wrapf(err, "unable to create tcp port from %s", k) + } + ports[p] = struct{}{} + case "udp": + p, err := nat.NewPort("udp", port) + if err != nil { + return nil, errors.Wrapf(err, "unable to create tcp port from %s", k) + } + ports[p] = struct{}{} + default: + return nil, errors.Errorf("invalid port proto %q in %q", proto, k) } - ports[npTCP] = struct{}{} - ports[npUDP] = struct{}{} } return ports, nil } -- cgit v1.2.3-54-g00ecf