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check mtu setting

pull/215/head
v2ray 2016-06-18 17:14:39 +02:00
parent 16f5f81fe9
commit a0d08e4961
1 changed files with 8 additions and 0 deletions
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8
transport/internet/kcp/config_json.go
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@ -4,6 +4,9 @@ package kcp
import ( import (
"encoding/json" "encoding/json"
"errors"
"github.com/v2ray/v2ray-core/common/log"
) )
func (this *Config) UnmarshalJSON(data []byte) error { func (this *Config) UnmarshalJSON(data []byte) error {
@ -15,6 +18,11 @@ func (this *Config) UnmarshalJSON(data []byte) error {
return err return err
} }
if jsonConfig.Mtu != nil { if jsonConfig.Mtu != nil {
mtu := *jsonConfig.Mtu
if mtu < 576 || mtu > 1460 {
log.Error("KCP|Config: Invalid MTU size: ", mtu)
return errors.New("Invalid configuration")
}
this.Mtu = *jsonConfig.Mtu this.Mtu = *jsonConfig.Mtu
} }