ping

ping/hosts.last.txt

@@ -137,4 +137,402 @@ weiyun.com,weibo.com,189.cn,jianguoyun.com
 51.79.40.168
 175.214.166.176
 145.14.116.56
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ping/hosts.txt

@@ -138,4 +138,402 @@ weiyun.com,weibo.com,189.cn,jianguoyun.com
 175.214.166.176
 145.14.116.56
 115.139.137.217
-189.153.21.195
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ping/ping.go

@@ -13,6 +13,7 @@ import (
 	"time"
 
 	"trial/ping/probing"
+	"trial/ping/probing/icmp"
 	"trial/ping/utils"
 
 	"git.wecise.com/wecise/common/logger"
@@ -71,6 +72,15 @@ var mcfg = cfg.MConfig()
 var allipsmutex sync.Mutex
 var allips = strset.New()
 
+/*
+  poolsize=1000  同时ping的不同目标地址个数
+  count=5        每轮ping的次数，每轮次产生一次统计结果，并切换目标地址
+  interval=1000  两次ping之间的间隔，单位毫秒
+  size=64        每次ping发送字节数，48～8192
+  timeout=2      ping超时，单位秒
+  detect=1ms     自动发现可ping通地址，并追加到 hosts.txt 文件，设置发现间隔时间需指定单位，如 ms,毫秒,us,微妙等，默认 0，不进行发现处理
+*/
+
 func main() {
 	input := &Input{}
 	input.statinfo = map[string]*StatInfo{}
@@ -140,6 +150,7 @@ func main() {
 				logger.Info(util.FormatDuration(time.Since(starttime)), "已经完成", pingcount, "次Ping操作，",
 					"平均每秒", (int64(pingcount+1) * int64(time.Second) / int64(time.Since(starttime))), "次",
 					"最近一秒", (pingcount - int32(last_count)), "次",
+					"最大缓冲", icmp.MaxReceiveBufferUsed(),
 				)
 				last_count = int(pingcount)
 			}
@@ -161,7 +172,7 @@ func main() {
 				Timeout:        mcfg.GetInt("timeout", 2),
 				NumberOfPings:  mcfg.GetInt("count", 5), // 至少为2，小于2会导致不能正常结束
 				PacketInterval: mcfg.GetInt("interval", 1000),
-				PacketSize:     mcfg.GetInt("size", 32),
+				PacketSize:     mcfg.GetInt("size", 64),
 			}
 		}
 		// time.Sleep(1 * time.Millisecond)
@@ -259,7 +270,6 @@ func (input *Input) send(t *task, workerNum int) error {
 			getcap /bin/goping-binary to validate
 		*/
 		pinger.SetPrivileged(false)
-		pinger.TTL = 64
 		if t.NumberOfPings > 0 {
 			pinger.Count = t.NumberOfPings
 		} else {
@@ -441,7 +451,6 @@ func detectip(addr string) (ok bool) {
 		return false
 	}
 	pinger.SetPrivileged(false)
-	pinger.TTL = 64
 	pinger.Count = 1
 	pinger.Interval = 200 * time.Millisecond
 	pinger.Size = 32

ping/probing/icmp/packetconn.go

@@ -207,8 +207,17 @@ func (mp *MPacketConn) SendPacket(pkt *Packet) error {
 	}
 }
 
+var max_receive_buffer_used = 0
+
+func MaxReceiveBufferUsed() int {
+	return max_receive_buffer_used
+}
+
 func (mp *MPacketConn) processRecvPacket() {
 	for pkt := range mp.recvbuf {
+		if len(mp.recvbuf) > max_receive_buffer_used {
+			max_receive_buffer_used = len(mp.recvbuf)
+		}
 		err := mp.processPacket(pkt)
 		if err != nil {
 			if mp.OnRecvError != nil {

ping/probing/icmp/utils.go

@@ -20,10 +20,13 @@ func netAddrToIPAddr(a net.Addr) *net.IPAddr {
 }
 
 func (pkt *Packet) BuildEchoRequestMessage(icmptype Type) ([]byte, error) {
-	if pkt.Nbytes < 40 {
-		pkt.Nbytes = 40
+	if pkt.Nbytes < 48 {
+		pkt.Nbytes = 48
 	}
-	bs := bytes.Repeat([]byte{1}, pkt.Nbytes)
+	if pkt.Nbytes > 8192 {
+		pkt.Nbytes = 8192
+	}
+	bs := bytes.Repeat([]byte{1}, pkt.Nbytes-8)
 	pkt.SendTime = time.Now()
 	binary.BigEndian.PutUint64(bs, uint64(pkt.SendTime.UnixNano()))
 	binary.BigEndian.PutUint64(bs[8:], uint64(pkt.Seq))
@@ -31,14 +34,14 @@ func (pkt *Packet) BuildEchoRequestMessage(icmptype Type) ([]byte, error) {
 	copy(bs[24:], pkt.UUID[:])
 
 	body := &icmp.Echo{
-		ID:   pkt.ID % 65535,
-		Seq:  pkt.Seq % 65536,
+		ID:   pkt.ID % 65536,  // 2 bytes
+		Seq:  pkt.Seq % 65536, // 2 bytes
 		Data: bs,
 	}
 
 	msg := &icmp.Message{
-		Type: icmptype,
-		Code: 0,
+		Type: icmptype, // 1 byte
+		Code: 0,        // 1 byte, Checksum 2 bytes
 		Body: body,
 	}
 

ping/probing/mpconn.go

@@ -78,8 +78,8 @@ func newMPConn(ipv4 bool, protocol string) *mpingconn {
 			IPV4:     ipv4,
 			Protocol: protocol,
 			Source:   "",
-			Backlog:  10,
-			TTL:      64,
+			Backlog:  receive_buffer_count,
+			TTL:      ping_ttl,
 		},
 		uuid:       uuid.Must(uuid.NewUUID()),
 		pingidinfo: make(map[int]*mpinfo),

ping/probing/ping.go

@@ -69,8 +69,8 @@ import (
 )
 
 var mcfg = cfg.MConfig()
-var receive_buffer_count = mcfg.GetInt("ping.recv.buf.count", 100)
-var ttl = mcfg.GetInt("ping.ttl", 64)
+var receive_buffer_count = mcfg.GetInt("ping.recv.buf.count", 10)
+var ping_ttl = mcfg.GetInt("ping.ttl", 64)
 var ping_interval = mcfg.GetDuration("ping.interval", 1000*time.Millisecond)
 var concurlimit_ping = mcfg.GetInt("concurlimit.ping", 100)
 var concurchan_ping = make(chan struct{}, concurlimit_ping)
@@ -106,7 +106,6 @@ func New(addr string) *Pinger {
 		network:           "ip",
 		protocol:          "udp",
 		awaitingSequences: firstSequence,
-		TTL:               64,
 	}
 }
 
@@ -204,8 +203,6 @@ type Pinger struct {
 	network string
 	// protocol is "icmp" or "udp".
 	protocol string
-
-	TTL int
 }
 
 // Packet represents a received and processed ICMP echo packet.