diff options
| author | Ayush Ranjan <ayushranjan@google.com> | 2020-12-17 11:07:56 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-12-17 11:10:41 -0800 |
| commit | 028271b5308708463d2aa593122840e70c93f02c (patch) | |
| tree | 879427ceb4842b88145a8789eb5a5dce5c40ebc3 /pkg/tcpip/header/icmpv4.go | |
| parent | 30860902f6953348577e6a1d742521c6fbc4c75d (diff) | |
[netstack] Implement IP(V6)_RECVERR socket option.
PiperOrigin-RevId: 348055514
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)) + } +} |