diff options
Diffstat (limited to 'pkg/sentry/socket/control/control.go')
| -rw-r--r-- | pkg/sentry/socket/control/control.go | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/pkg/sentry/socket/control/control.go b/pkg/sentry/socket/control/control.go index 00a5e729a..f9a5b0df1 100644 --- a/pkg/sentry/socket/control/control.go +++ b/pkg/sentry/socket/control/control.go @@ -355,6 +355,17 @@ func PackIPPacketInfo(t *kernel.Task, packetInfo *linux.ControlMessageIPPacketIn ) } +// PackIPv6PacketInfo packs an IPV6_PKTINFO socket control message. +func PackIPv6PacketInfo(t *kernel.Task, packetInfo *linux.ControlMessageIPv6PacketInfo, buf []byte) []byte { + return putCmsgStruct( + buf, + linux.SOL_IPV6, + linux.IPV6_PKTINFO, + t.Arch().Width(), + packetInfo, + ) +} + // PackOriginalDstAddress packs an IP_RECVORIGINALDSTADDR socket control message. func PackOriginalDstAddress(t *kernel.Task, originalDstAddress linux.SockAddr, buf []byte) []byte { var level uint32 @@ -412,6 +423,10 @@ func PackControlMessages(t *kernel.Task, cmsgs socket.ControlMessages, buf []byt buf = PackIPPacketInfo(t, &cmsgs.IP.PacketInfo, buf) } + if cmsgs.IP.HasIPv6PacketInfo { + buf = PackIPv6PacketInfo(t, &cmsgs.IP.IPv6PacketInfo, buf) + } + if cmsgs.IP.OriginalDstAddress != nil { buf = PackOriginalDstAddress(t, cmsgs.IP.OriginalDstAddress, buf) } @@ -453,6 +468,10 @@ func CmsgsSpace(t *kernel.Task, cmsgs socket.ControlMessages) int { space += cmsgSpace(t, linux.SizeOfControlMessageIPPacketInfo) } + if cmsgs.IP.HasIPv6PacketInfo { + space += cmsgSpace(t, linux.SizeOfControlMessageIPv6PacketInfo) + } + if cmsgs.IP.OriginalDstAddress != nil { space += cmsgSpace(t, cmsgs.IP.OriginalDstAddress.SizeBytes()) } |