39 lines
733 B
Go
39 lines
733 B
Go
package tun
|
|
|
|
import (
|
|
"time"
|
|
|
|
mdata "github.com/go-gost/core/metadata"
|
|
mdutil "github.com/go-gost/core/metadata/util"
|
|
)
|
|
|
|
const (
|
|
defaultKeepAlivePeriod = 10 * time.Second
|
|
)
|
|
|
|
type metadata struct {
|
|
bufferSize int
|
|
keepAlivePeriod time.Duration
|
|
}
|
|
|
|
func (h *tunHandler) parseMetadata(md mdata.Metadata) (err error) {
|
|
const (
|
|
bufferSize = "bufferSize"
|
|
keepAlive = "keepAlive"
|
|
keepAlivePeriod = "ttl"
|
|
)
|
|
|
|
h.md.bufferSize = mdutil.GetInt(md, bufferSize)
|
|
if h.md.bufferSize <= 0 {
|
|
h.md.bufferSize = 1500
|
|
}
|
|
|
|
if mdutil.GetBool(md, keepAlive) {
|
|
h.md.keepAlivePeriod = mdutil.GetDuration(md, keepAlivePeriod)
|
|
if h.md.keepAlivePeriod <= 0 {
|
|
h.md.keepAlivePeriod = defaultKeepAlivePeriod
|
|
}
|
|
}
|
|
return
|
|
}
|