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ping: Add needFilter

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This commit is contained in:
wwqgtxx 2025-08-26 13:20:50 +08:00
parent 6e4e045620
commit 4fb5702443
2 changed files with 53 additions and 41 deletions
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22
ping/ping.go
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@ -44,7 +44,7 @@ func Connect(ctx context.Context, privileged bool, controlFunc control.Func, des
}
func (c *Conn) connect(controlFunc control.Func) (err error) {
if c.IsLinuxUnprivileged() {
if c.isLinuxUnprivileged() {
c.conn, err = newUnprivilegedConn(c.ctx, controlFunc, c.destination)
} else {
c.conn, err = connect(c.privileged, controlFunc, c.destination)
@ -52,12 +52,12 @@ func (c *Conn) connect(controlFunc control.Func) (err error) {
return
}
func (c *Conn) IsLinuxUnprivileged() bool {
func (c *Conn) isLinuxUnprivileged() bool {
return (runtime.GOOS == "linux" || runtime.GOOS == "android") && !c.privileged
}
func (c *Conn) ReadIP(buffer *buf.Buffer) error {
if c.destination.Is6() || c.IsLinuxUnprivileged() {
if c.destination.Is6() || c.isLinuxUnprivileged() {
var readMsg func(b, oob []byte) (n, oobn int, addr netip.Addr, err error)
switch conn := c.conn.(type) {
case *net.IPConn:
@ -104,7 +104,7 @@ func (c *Conn) ReadIP(buffer *buf.Buffer) error {
}
ttl = controlMessage.TTL
}
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
icmpHdr := header.ICMPv4(buffer.Bytes())
icmpHdr.SetIdent(^icmpHdr.Ident())
icmpHdr.SetChecksum(0)
@ -142,7 +142,7 @@ func (c *Conn) ReadIP(buffer *buf.Buffer) error {
trafficClass = controlMessage.TrafficClass
}
icmpHdr := header.ICMPv6(buffer.Bytes())
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
icmpHdr.SetIdent(^icmpHdr.Ident())
}
icmpHdr.SetChecksum(0)
@ -182,7 +182,7 @@ func (c *Conn) ReadIP(buffer *buf.Buffer) error {
ipHdr.SetChecksum(0)
ipHdr.SetChecksum(^ipHdr.CalculateChecksum())
icmpHdr := header.ICMPv4(ipHdr.Payload())
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
icmpHdr.SetIdent(^icmpHdr.Ident())
}
icmpHdr.SetChecksum(0)
@ -194,7 +194,7 @@ func (c *Conn) ReadIP(buffer *buf.Buffer) error {
}
ipHdr.SetDestinationAddr(c.source.Load())
icmpHdr := header.ICMPv6(ipHdr.Payload())
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
icmpHdr.SetIdent(^icmpHdr.Ident())
}
icmpHdr.SetChecksum(0)
@ -213,7 +213,7 @@ func (c *Conn) ReadICMP(buffer *buf.Buffer) error {
if err != nil {
return err
}
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
if !c.destination.Is6() {
ipHdr := header.IPv4(buffer.Bytes())
buffer.Advance(int(ipHdr.HeaderLength()))
@ -240,7 +240,7 @@ func (c *Conn) WriteIP(buffer *buf.Buffer) error {
defer buffer.Release()
if !c.destination.Is6() {
ipHdr := header.IPv4(buffer.Bytes())
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
icmpHdr := header.ICMPv4(ipHdr.Payload())
icmpHdr.SetIdent(^icmpHdr.Ident())
icmpHdr.SetChecksum(0)
@ -250,7 +250,7 @@ func (c *Conn) WriteIP(buffer *buf.Buffer) error {
return common.Error(c.conn.Write(ipHdr.Payload()))
} else {
ipHdr := header.IPv6(buffer.Bytes())
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
icmpHdr := header.ICMPv6(ipHdr.Payload())
icmpHdr.SetIdent(^icmpHdr.Ident())
icmpHdr.SetChecksum(0)
@ -267,7 +267,7 @@ func (c *Conn) WriteIP(buffer *buf.Buffer) error {
func (c *Conn) WriteICMP(buffer *buf.Buffer) error {
defer buffer.Release()
if !c.IsLinuxUnprivileged() {
if !c.isLinuxUnprivileged() {
if !c.destination.Is6() {
icmpHdr := header.ICMPv4(buffer.Bytes())
icmpHdr.SetIdent(^icmpHdr.Ident())