github.com/google/osv-scalibr@v0.4.1/extractor/filesystem/os/kernel/module/metadata/metadata.go (about)

     1  // Copyright 2025 Google LLC
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // Package metadata defines a metadata struct for kernel modules.
    16  package metadata
    17  
    18  import "github.com/google/osv-scalibr/log"
    19  
    20  // Metadata holds parsing information for a kernel module.
    21  type Metadata struct {
    22  	PackageName                    string
    23  	PackageVersion                 string
    24  	PackageVermagic                string
    25  	PackageSourceVersionIdentifier string
    26  	OSID                           string
    27  	OSVersionCodename              string
    28  	OSVersionID                    string
    29  	PackageAuthor                  string
    30  }
    31  
    32  // ToNamespace extracts the PURL namespace from the metadata.
    33  func (m *Metadata) ToNamespace() string {
    34  	if m.OSID != "" {
    35  		return m.OSID
    36  	}
    37  	log.Errorf("os-release[ID] not set, fallback to 'linux'")
    38  	return "linux"
    39  }
    40  
    41  // ToDistro extracts the OS distro from the metadata.
    42  func (m *Metadata) ToDistro() string {
    43  	// fallback: e.g. 22.04
    44  	if m.OSVersionID != "" {
    45  		return m.OSVersionID
    46  	}
    47  	log.Errorf("VERSION_ID not set in os-release")
    48  	return ""
    49  }