diff options
Diffstat (limited to 'pkg/tcpip/transport/icmp/endpoint.go')
| -rw-r--r-- | pkg/tcpip/transport/icmp/endpoint.go | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/pkg/tcpip/transport/icmp/endpoint.go b/pkg/tcpip/transport/icmp/endpoint.go index 451d3880e..e1f622af6 100644 --- a/pkg/tcpip/transport/icmp/endpoint.go +++ b/pkg/tcpip/transport/icmp/endpoint.go @@ -15,7 +15,6 @@ package icmp import ( - "encoding/binary" "sync" "gvisor.dev/gvisor/pkg/tcpip" @@ -368,14 +367,13 @@ func send4(r *stack.Route, ident uint16, data buffer.View) *tcpip.Error { return tcpip.ErrInvalidEndpointState } - // Set the ident to the user-specified port. Sequence number should - // already be set by the user. - binary.BigEndian.PutUint16(data[header.ICMPv4PayloadOffset:], ident) - hdr := buffer.NewPrependable(header.ICMPv4MinimumSize + int(r.MaxHeaderLength())) icmpv4 := header.ICMPv4(hdr.Prepend(header.ICMPv4MinimumSize)) copy(icmpv4, data) + // Set the ident to the user-specified port. Sequence number should + // already be set by the user. + icmpv4.SetIdent(ident) data = data[header.ICMPv4MinimumSize:] // Linux performs these basic checks. @@ -394,14 +392,13 @@ func send6(r *stack.Route, ident uint16, data buffer.View) *tcpip.Error { return tcpip.ErrInvalidEndpointState } - // Set the ident. Sequence number is provided by the user. - binary.BigEndian.PutUint16(data[header.ICMPv6MinimumSize:], ident) - - hdr := buffer.NewPrependable(header.ICMPv6EchoMinimumSize + int(r.MaxHeaderLength())) + hdr := buffer.NewPrependable(header.ICMPv6MinimumSize + int(r.MaxHeaderLength())) - icmpv6 := header.ICMPv6(hdr.Prepend(header.ICMPv6EchoMinimumSize)) + icmpv6 := header.ICMPv6(hdr.Prepend(header.ICMPv6MinimumSize)) copy(icmpv6, data) - data = data[header.ICMPv6EchoMinimumSize:] + // Set the ident. Sequence number is provided by the user. + icmpv6.SetIdent(ident) + data = data[header.ICMPv6MinimumSize:] if icmpv6.Type() != header.ICMPv6EchoRequest || icmpv6.Code() != 0 { return tcpip.ErrInvalidEndpointState |