diff options
Diffstat (limited to 'pkg/tcpip/header/icmpv4.go')
| -rw-r--r-- | pkg/tcpip/header/icmpv4.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/pkg/tcpip/header/icmpv4.go b/pkg/tcpip/header/icmpv4.go index 2f13dea6a..1be90d7d5 100644 --- a/pkg/tcpip/header/icmpv4.go +++ b/pkg/tcpip/header/icmpv4.go @@ -16,6 +16,7 @@ package header import ( "encoding/binary" + "fmt" "gvisor.dev/gvisor/pkg/tcpip" "gvisor.dev/gvisor/pkg/tcpip/buffer" @@ -213,3 +214,16 @@ func ICMPv4Checksum(h ICMPv4, vv buffer.VectorisedView) uint16 { return xsum } + +// ICMPOriginFromNetProto returns the appropriate SockErrOrigin to use when +// a packet having a `net` header causing an ICMP error. +func ICMPOriginFromNetProto(net tcpip.NetworkProtocolNumber) tcpip.SockErrOrigin { + switch net { + case IPv4ProtocolNumber: + return tcpip.SockExtErrorOriginICMP + case IPv6ProtocolNumber: + return tcpip.SockExtErrorOriginICMP6 + default: + panic(fmt.Sprintf("unsupported net proto to extract ICMP error origin: %d", net)) + } +} |