syslog filter could take several filters

internal/config/cli.go

@@ -14,7 +14,7 @@ func declareFlags(o *Config) {
 	flag.StringVar(&o.ARPTablePath, "arp-table-path", "/proc/net/arp", "Path to ARP table file")
 	flag.BoolVar(&o.SyslogEnabled, "syslog-enabled", false, "Enable syslog tailing for iwd messages")
 	flag.StringVar(&o.SyslogPath, "syslog-path", "/var/log/messages", "Path to syslog file")
-	flag.StringVar(&o.SyslogFilter, "syslog-filter", "daemon.info iwd:", "Filter string for syslog lines")
+	flag.Var(&StringArray{&o.SyslogFilter}, "daemon.info iwd:", "Filter string for syslog lines")
 	flag.StringVar(&o.SyslogSource, "syslog-source", "iwd", "Source name for syslog entries in logs")
 }
 

internal/config/config.go

@@ -9,16 +9,16 @@ import (
 )
 
 type Config struct {
-	Bind                 string
-	WifiInterface        string
-	WifiBackend          string
-	UseARPDiscovery      bool
-	DHCPLeasesPath       string
-	ARPTablePath         string
-	SyslogEnabled        bool
-	SyslogPath           string
-	SyslogFilter         string
-	SyslogSource         string
+	Bind            string
+	WifiInterface   string
+	WifiBackend     string
+	UseARPDiscovery bool
+	DHCPLeasesPath  string
+	ARPTablePath    string
+	SyslogEnabled   bool
+	SyslogPath      string
+	SyslogFilter    []string
+	SyslogSource    string
 }
 
 // ConsolidateConfig fills an Options struct by reading configuration from
@@ -35,7 +35,7 @@ func ConsolidateConfig() (opts *Config, err error) {
 		ARPTablePath:    "/proc/net/arp",
 		SyslogEnabled:   false,
 		SyslogPath:      "/var/log/messages",
-		SyslogFilter:    "daemon.info iwd:",
+		SyslogFilter:    []string{"daemon.info wpa_supplicant:", "daemon.info iwd:", "daemon.info hostapd:"},
 		SyslogSource:    "iwd",
 	}
 

internal/config/custom.go

@@ -1,9 +1,27 @@
 package config
 
 import (
+	"fmt"
 	"net/url"
 )
 
+// StringArray is a custom type for handling multiple string values in flags.
+type StringArray struct {
+	Array *[]string
+}
+
+// String returns a string representation of the StringArray.
+func (i *StringArray) String() string {
+	return fmt.Sprintf("%v", i.Array)
+}
+
+// Set appends a new string value to the StringArray.
+func (i *StringArray) Set(value string) error {
+	*i.Array = append(*i.Array, value)
+
+	return nil
+}
+
 type URL struct {
 	URL *url.URL
 }

internal/syslog/syslog.go

@@ -14,9 +14,9 @@ import (
 
 // SyslogTailer tails a syslog file and filters messages to the logging system.
 type SyslogTailer struct {
-	path   string
-	filter string
-	source string
+	path    string
+	filters []string
+	source  string
 
 	file    *os.File
 	done    chan struct{}
@@ -29,12 +29,12 @@ type SyslogTailer struct {
 // path: Path to the syslog file (e.g., "/var/log/messages")
 // filter: Filter string to match in lines (e.g., "daemon.info iwd:")
 // source: Source name for logging (e.g., "iwd")
-func NewSyslogTailer(path, filter, source string) *SyslogTailer {
+func NewSyslogTailer(path string, filters []string, source string) *SyslogTailer {
 	return &SyslogTailer{
-		path:   path,
-		filter: filter,
-		source: source,
-		done:   make(chan struct{}),
+		path:    path,
+		filters: filters,
+		source:  source,
+		done:    make(chan struct{}),
 	}
 }
 
@@ -185,15 +185,22 @@ func (t *SyslogTailer) readLines(file *os.File) error {
 
 		line := scanner.Text()
 
-		// Check if the line contains the filter string
-		if !strings.Contains(line, t.filter) {
+		// Check if the line contains any of the filter strings
+		var matchedFilter string
+		for _, filter := range t.filters {
+			if strings.Contains(line, filter) {
+				matchedFilter = filter
+				break
+			}
+		}
+		if matchedFilter == "" {
 			continue
 		}
 
 		// Parse the syslog line to extract the message
 		// We look for "iwd:" (or whatever comes after the filter)
 		// The filter is "daemon.info iwd:" so we want to extract text after "iwd:"
-		daemonPrefix := extractDaemonPrefix(t.filter)
+		daemonPrefix := extractDaemonPrefix(matchedFilter)
 		message, ok := ParseSyslogLine(line, daemonPrefix)
 		if !ok {
 			// Couldn't parse the line, skip it