feat: inject ptp4l auth settings into phc2sys config for grandmaster profiles

Add extractAuthSettingsForPhc2sys function to parse sa_file, spp, and active_key_id from ptp4lConf [global] section. For grandmaster clock types, automatically inject these authentication settings into the phc2sys configuration to ensure consistent TLV authentication across PTP processes.

Author: gtannous-spec

pkg/daemon/daemon.go

@@ -625,6 +625,68 @@ func printNodeProfile(nodeProfile *ptpv1.PtpProfile) {
 	glog.Infof("------------------------------------")
 }
 
+// extractAuthSettingsForPhc2sys extracts sa_file, spp, and active_key_id from ptp4lConf
+// and returns a phc2sys-compatible [global] section with those settings
+func extractAuthSettingsForPhc2sys(ptp4lConf *string) string {
+	if ptp4lConf == nil || *ptp4lConf == "" {
+		return ""
+	}
+
+	var saFile, spp, activeKeyId string
+	inGlobal := false
+
+	for _, line := range strings.Split(*ptp4lConf, "\n") {
+		line = strings.TrimSpace(line)
+
+		if line == "[global]" {
+			inGlobal = true
+			continue
+		}
+		if strings.HasPrefix(line, "[") && line != "[global]" {
+			inGlobal = false
+			continue
+		}
+
+		if inGlobal {
+			if strings.HasPrefix(line, "sa_file") {
+				parts := strings.Fields(line)
+				if len(parts) >= 2 {
+					saFile = parts[1]
+				}
+			} else if strings.HasPrefix(line, "spp") && !strings.HasPrefix(line, "spp ") {
+				// Skip lines like "spp_foo"
+			} else if strings.HasPrefix(line, "spp ") {
+				parts := strings.Fields(line)
+				if len(parts) >= 2 {
+					spp = parts[1]
+				}
+			} else if strings.HasPrefix(line, "active_key_id") {
+				parts := strings.Fields(line)
+				if len(parts) >= 2 {
+					activeKeyId = parts[1]
+				}
+			}
+		}
+	}
+
+	// Only generate config if we have auth settings
+	if saFile == "" {
+		return ""
+	}
+
+	var result strings.Builder
+	result.WriteString("[global]\n")
+	result.WriteString(fmt.Sprintf("sa_file %s\n", saFile))
+	if spp != "" {
+		result.WriteString(fmt.Sprintf("spp %s\n", spp))
+	}
+	if activeKeyId != "" {
+		result.WriteString(fmt.Sprintf("active_key_id %s\n", activeKeyId))
+	}
+
+	return result.String()
+}
+
 /*
 update: March 7th 2024
 To support PTP HA phc2sys profile is appended to the end
@@ -712,6 +774,19 @@ func (dn *Daemon) applyNodePtpProfile(runID int, nodeProfile *ptpv1.PtpProfile)
 			}
 			configFile = fmt.Sprintf("phc2sys.%d.config", runID)
 			configPath = fmt.Sprintf("%s/%s", configPrefix, configFile)
+			if clockType == event.GM && nodeProfile.Ptp4lConf != nil {
+				phc2sysAuthConfig := extractAuthSettingsForPhc2sys(nodeProfile.Ptp4lConf)
+				if phc2sysAuthConfig != "" {
+					if configInput == nil || *configInput == "" {
+						configInput = &phc2sysAuthConfig
+					} else {
+						// Prepend auth settings to existing config
+						merged := phc2sysAuthConfig + "\n" + *configInput
+						configInput = &merged
+					}
+					glog.Infof("Injected auth settings into phc2sys config for grandmaster profile %s", *nodeProfile.Name)
+				}
+			}
 		case ts2phcProcessName:
 			configInput = nodeProfile.Ts2PhcConf
 			configOpts = nodeProfile.Ts2PhcOpts