diff options
Diffstat (limited to 'pkg/sentry')
-rw-r--r-- | pkg/sentry/socket/control/control.go | 26 | ||||
-rw-r--r-- | pkg/sentry/socket/hostinet/socket.go | 48 |
2 files changed, 62 insertions, 12 deletions
diff --git a/pkg/sentry/socket/control/control.go b/pkg/sentry/socket/control/control.go index 5b81e8379..b88cdca48 100644 --- a/pkg/sentry/socket/control/control.go +++ b/pkg/sentry/socket/control/control.go @@ -503,6 +503,14 @@ func Parse(t *kernel.Task, socketOrEndpoint interface{}, buf []byte) (socket.Con cmsgs.Unix.Credentials = scmCreds i += binary.AlignUp(length, width) + case linux.SO_TIMESTAMP: + if length < linux.SizeOfTimeval { + return socket.ControlMessages{}, syserror.EINVAL + } + cmsgs.IP.HasTimestamp = true + binary.Unmarshal(buf[i:i+linux.SizeOfTimeval], usermem.ByteOrder, &cmsgs.IP.Timestamp) + i += binary.AlignUp(length, width) + default: // Unknown message type. return socket.ControlMessages{}, syserror.EINVAL @@ -529,6 +537,15 @@ func Parse(t *kernel.Task, socketOrEndpoint interface{}, buf []byte) (socket.Con cmsgs.IP.PacketInfo = packetInfo i += binary.AlignUp(length, width) + case linux.IP_RECVORIGDSTADDR: + var addr linux.SockAddrInet + if length < addr.SizeBytes() { + return socket.ControlMessages{}, syserror.EINVAL + } + binary.Unmarshal(buf[i:i+addr.SizeBytes()], usermem.ByteOrder, &addr) + cmsgs.IP.OriginalDstAddress = &addr + i += binary.AlignUp(length, width) + default: return socket.ControlMessages{}, syserror.EINVAL } @@ -542,6 +559,15 @@ func Parse(t *kernel.Task, socketOrEndpoint interface{}, buf []byte) (socket.Con binary.Unmarshal(buf[i:i+linux.SizeOfControlMessageTClass], usermem.ByteOrder, &cmsgs.IP.TClass) i += binary.AlignUp(length, width) + case linux.IPV6_RECVORIGDSTADDR: + var addr linux.SockAddrInet6 + if length < addr.SizeBytes() { + return socket.ControlMessages{}, syserror.EINVAL + } + binary.Unmarshal(buf[i:i+addr.SizeBytes()], usermem.ByteOrder, &addr) + cmsgs.IP.OriginalDstAddress = &addr + i += binary.AlignUp(length, width) + default: return socket.ControlMessages{}, syserror.EINVAL } diff --git a/pkg/sentry/socket/hostinet/socket.go b/pkg/sentry/socket/hostinet/socket.go index 9b337d286..be418df2e 100644 --- a/pkg/sentry/socket/hostinet/socket.go +++ b/pkg/sentry/socket/hostinet/socket.go @@ -331,17 +331,17 @@ func (s *socketOpsCommon) GetSockOpt(t *kernel.Task, level int, name int, outPtr switch level { case linux.SOL_IP: switch name { - case linux.IP_TOS, linux.IP_RECVTOS, linux.IP_PKTINFO: + case linux.IP_TOS, linux.IP_RECVTOS, linux.IP_PKTINFO, linux.IP_RECVORIGDSTADDR: optlen = sizeofInt32 } case linux.SOL_IPV6: switch name { - case linux.IPV6_TCLASS, linux.IPV6_RECVTCLASS, linux.IPV6_V6ONLY: + case linux.IPV6_TCLASS, linux.IPV6_RECVTCLASS, linux.IPV6_V6ONLY, linux.IPV6_RECVORIGDSTADDR: optlen = sizeofInt32 } case linux.SOL_SOCKET: switch name { - case linux.SO_ERROR, linux.SO_KEEPALIVE, linux.SO_SNDBUF, linux.SO_RCVBUF, linux.SO_REUSEADDR: + case linux.SO_ERROR, linux.SO_KEEPALIVE, linux.SO_SNDBUF, linux.SO_RCVBUF, linux.SO_REUSEADDR, linux.SO_TIMESTAMP: optlen = sizeofInt32 case linux.SO_LINGER: optlen = syscall.SizeofLinger @@ -377,24 +377,24 @@ func (s *socketOpsCommon) SetSockOpt(t *kernel.Task, level int, name int, opt [] switch level { case linux.SOL_IP: switch name { - case linux.IP_TOS, linux.IP_RECVTOS: + case linux.IP_TOS, linux.IP_RECVTOS, linux.IP_RECVORIGDSTADDR: optlen = sizeofInt32 case linux.IP_PKTINFO: optlen = linux.SizeOfControlMessageIPPacketInfo } case linux.SOL_IPV6: switch name { - case linux.IPV6_TCLASS, linux.IPV6_RECVTCLASS, linux.IPV6_V6ONLY: + case linux.IPV6_TCLASS, linux.IPV6_RECVTCLASS, linux.IPV6_V6ONLY, linux.IPV6_RECVORIGDSTADDR: optlen = sizeofInt32 } case linux.SOL_SOCKET: switch name { - case linux.SO_SNDBUF, linux.SO_RCVBUF, linux.SO_REUSEADDR: + case linux.SO_SNDBUF, linux.SO_RCVBUF, linux.SO_REUSEADDR, linux.SO_TIMESTAMP: optlen = sizeofInt32 } case linux.SOL_TCP: switch name { - case linux.TCP_NODELAY: + case linux.TCP_NODELAY, linux.TCP_INQ: optlen = sizeofInt32 } } @@ -513,24 +513,48 @@ func (s *socketOpsCommon) RecvMsg(t *kernel.Task, dst usermem.IOSequence, flags controlMessages := socket.ControlMessages{} for _, unixCmsg := range unixControlMessages { switch unixCmsg.Header.Level { - case syscall.SOL_IP: + case linux.SOL_SOCKET: switch unixCmsg.Header.Type { - case syscall.IP_TOS: + case linux.SO_TIMESTAMP: + controlMessages.IP.HasTimestamp = true + binary.Unmarshal(unixCmsg.Data[:linux.SizeOfTimeval], usermem.ByteOrder, &controlMessages.IP.Timestamp) + } + + case linux.SOL_IP: + switch unixCmsg.Header.Type { + case linux.IP_TOS: controlMessages.IP.HasTOS = true binary.Unmarshal(unixCmsg.Data[:linux.SizeOfControlMessageTOS], usermem.ByteOrder, &controlMessages.IP.TOS) - case syscall.IP_PKTINFO: + case linux.IP_PKTINFO: controlMessages.IP.HasIPPacketInfo = true var packetInfo linux.ControlMessageIPPacketInfo binary.Unmarshal(unixCmsg.Data[:linux.SizeOfControlMessageIPPacketInfo], usermem.ByteOrder, &packetInfo) controlMessages.IP.PacketInfo = packetInfo + + case linux.IP_RECVORIGDSTADDR: + var addr linux.SockAddrInet + binary.Unmarshal(unixCmsg.Data[:addr.SizeBytes()], usermem.ByteOrder, &addr) + controlMessages.IP.OriginalDstAddress = &addr } - case syscall.SOL_IPV6: + case linux.SOL_IPV6: switch unixCmsg.Header.Type { - case syscall.IPV6_TCLASS: + case linux.IPV6_TCLASS: controlMessages.IP.HasTClass = true binary.Unmarshal(unixCmsg.Data[:linux.SizeOfControlMessageTClass], usermem.ByteOrder, &controlMessages.IP.TClass) + + case linux.IPV6_RECVORIGDSTADDR: + var addr linux.SockAddrInet6 + binary.Unmarshal(unixCmsg.Data[:addr.SizeBytes()], usermem.ByteOrder, &addr) + controlMessages.IP.OriginalDstAddress = &addr + } + + case linux.SOL_TCP: + switch unixCmsg.Header.Type { + case linux.TCP_INQ: + controlMessages.IP.HasInq = true + binary.Unmarshal(unixCmsg.Data[:linux.SizeOfControlMessageInq], usermem.ByteOrder, &controlMessages.IP.Inq) } } } |