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Only add no bgp enforce-first-as on frr >= 10 (#194)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| package frr | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os/exec" | ||
| "strings" | ||
|
|
||
| "github.com/Masterminds/semver/v3" | ||
| ) | ||
|
|
||
| func DetectVersion() (*semver.Version, error) { | ||
|
|
||
| vtysh, err := exec.LookPath("vtysh") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to detect path to vtysh: %w", err) | ||
| } | ||
| // $ vtysh -c "show version"|grep FRRouting | ||
| // FRRouting 10.2.1 (shoot--pz9cjf--mwen-fel-firewall-dcedd) on Linux(6.6.60-060660-generic). | ||
| c := exec.Command(vtysh, "-c", "show version") | ||
| out, err := c.CombinedOutput() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to detect frr version with dpkg: %w", err) | ||
| } | ||
|
|
||
| var frrVersion string | ||
| for _, line := range strings.Split(string(out), "\n") { | ||
| if !strings.Contains(line, "FRRouting") { | ||
| continue | ||
| } | ||
|
|
||
| fields := strings.Fields(line) | ||
| if len(fields) < 2 { | ||
| continue | ||
| } | ||
|
|
||
| frrVersion = fields[1] | ||
| break | ||
| } | ||
| if frrVersion == "" { | ||
| return nil, fmt.Errorf("unable to detect frr version") | ||
| } | ||
|
|
||
| ver, err := semver.NewVersion(frrVersion) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to parse frr version to semver: %w", err) | ||
| } | ||
| return ver, nil | ||
| } |
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