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| 1 | +/* |
| 2 | + Copyright The containerd Authors. |
| 3 | +
|
| 4 | + Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + you may not use this file except in compliance with the License. |
| 6 | + You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | + Unless required by applicable law or agreed to in writing, software |
| 11 | + distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + See the License for the specific language governing permissions and |
| 14 | + limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package mountutil |
| 18 | + |
| 19 | +import ( |
| 20 | + "fmt" |
| 21 | + "strings" |
| 22 | + |
| 23 | + "github.com/containerd/containerd/v2/pkg/oci" |
| 24 | + "github.com/containerd/errdefs" |
| 25 | + "github.com/containerd/log" |
| 26 | + |
| 27 | + "github.com/containerd/nerdctl/v2/pkg/mountutil/volumestore" |
| 28 | +) |
| 29 | + |
| 30 | +const ( |
| 31 | + DefaultMountType = "" |
| 32 | + |
| 33 | + DefaultPropagationMode = "" |
| 34 | +) |
| 35 | + |
| 36 | +func UnprivilegedMountFlags(path string) ([]string, error) { |
| 37 | + m := []string{} |
| 38 | + return m, nil |
| 39 | +} |
| 40 | + |
| 41 | +// parseVolumeOptions parses specified optsRaw with using information of |
| 42 | +// the volume type and the src directory when necessary. |
| 43 | +func parseVolumeOptions(vType, src, optsRaw string) ([]string, []oci.SpecOpts, error) { |
| 44 | + var writeModeRawOpts []string |
| 45 | + for _, opt := range strings.Split(optsRaw, ",") { |
| 46 | + switch opt { |
| 47 | + case "rw": |
| 48 | + writeModeRawOpts = append(writeModeRawOpts, opt) |
| 49 | + case "ro": |
| 50 | + writeModeRawOpts = append(writeModeRawOpts, opt) |
| 51 | + case "": |
| 52 | + // NOP |
| 53 | + default: |
| 54 | + log.L.Warnf("unsupported volume option %q", opt) |
| 55 | + } |
| 56 | + } |
| 57 | + var opts []string |
| 58 | + if len(writeModeRawOpts) > 1 { |
| 59 | + return nil, nil, fmt.Errorf("duplicated read/write volume option: %+v", writeModeRawOpts) |
| 60 | + } else if len(writeModeRawOpts) > 0 && writeModeRawOpts[0] == "ro" { |
| 61 | + opts = append(opts, "ro") |
| 62 | + } // No need to return option when "rw" |
| 63 | + return opts, nil, nil |
| 64 | +} |
| 65 | + |
| 66 | +func ProcessFlagTmpfs(s string) (*Processed, error) { |
| 67 | + return nil, errdefs.ErrNotImplemented |
| 68 | +} |
| 69 | + |
| 70 | +func ProcessFlagMount(s string, volStore volumestore.VolumeStore) (*Processed, error) { |
| 71 | + return nil, errdefs.ErrNotImplemented |
| 72 | +} |
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