diff options
Diffstat (limited to 'pkg/tcpip/network/ipv4')
| -rw-r--r-- | pkg/tcpip/network/ipv4/icmp.go | 4 | ||||
| -rw-r--r-- | pkg/tcpip/network/ipv4/ipv4.go | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/pkg/tcpip/network/ipv4/icmp.go b/pkg/tcpip/network/ipv4/icmp.go index 58a19e74a..204b182e6 100644 --- a/pkg/tcpip/network/ipv4/icmp.go +++ b/pkg/tcpip/network/ipv4/icmp.go @@ -90,7 +90,7 @@ func (e *endpoint) handleICMP(pkt *stack.PacketBuffer) { iph := header.IPv4(pkt.NetworkHeader().View()) var newOptions header.IPv4Options - if len(iph) > header.IPv4MinimumSize { + if opts := iph.Options(); len(opts) != 0 { // RFC 1122 section 3.2.2.6 (page 43) (and similar for other round trip // type ICMP packets): // If a Record Route and/or Time Stamp option is received in an @@ -106,7 +106,7 @@ func (e *endpoint) handleICMP(pkt *stack.PacketBuffer) { } else { op = &optionUsageReceive{} } - aux, tmp, err := e.processIPOptions(pkt, iph.Options(), op) + aux, tmp, err := e.processIPOptions(pkt, opts, op) if err != nil { switch { case diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go index b4f21d61e..a9a38b851 100644 --- a/pkg/tcpip/network/ipv4/ipv4.go +++ b/pkg/tcpip/network/ipv4/ipv4.go @@ -713,11 +713,11 @@ func (e *endpoint) handlePacket(pkt *stack.PacketBuffer) { e.handleICMP(pkt) return } - if len(h.Options()) != 0 { + if opts := h.Options(); len(opts) != 0 { // TODO(gvisor.dev/issue/4586): // When we add forwarding support we should use the verified options // rather than just throwing them away. - aux, _, err := e.processIPOptions(pkt, h.Options(), &optionUsageReceive{}) + aux, _, err := e.processIPOptions(pkt, opts, &optionUsageReceive{}) if err != nil { switch { case |