diff options
Diffstat (limited to 'log/logger.go')
| -rw-r--r-- | log/logger.go | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/log/logger.go b/log/logger.go index 7fa4001..1a5b2d0 100644 --- a/log/logger.go +++ b/log/logger.go @@ -10,9 +10,19 @@ import ( "github.com/mpolden/zdns/sql" ) +const ( + // ModeDiscard disables logging of DNS requests. + ModeDiscard = iota + // ModeAll logs all DNS requests. + ModeAll + // ModeHijacked only logs hijacked DNS requests. + ModeHijacked +) + // Logger wraps a standard log.Logger and an optional log database. type Logger struct { *log.Logger + mode int queue chan Entry db *sql.Client wg sync.WaitGroup @@ -23,6 +33,7 @@ type Logger struct { // RecordOptions configures recording of DNS requests. type RecordOptions struct { Database string + Mode int TTL time.Duration } @@ -47,6 +58,7 @@ func newLogger(w io.Writer, prefix string, options RecordOptions, interval time. Logger: log.New(w, prefix, 0), queue: make(chan Entry, 100), now: time.Now, + mode: options.Mode, } var err error if options.Database != "" { @@ -97,6 +109,12 @@ func (l *Logger) Record(remoteAddr net.IP, hijacked bool, qtype uint16, question if l.db == nil { return } + if l.mode == ModeDiscard { + return + } + if l.mode == ModeHijacked && !hijacked { + return + } l.queue <- Entry{ Time: l.now(), RemoteAddr: remoteAddr, |