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Diffstat (limited to 'test/packetimpact/testbench/dut.go')
-rw-r--r-- | test/packetimpact/testbench/dut.go | 832 |
1 files changed, 0 insertions, 832 deletions
diff --git a/test/packetimpact/testbench/dut.go b/test/packetimpact/testbench/dut.go deleted file mode 100644 index 0cac0bf1b..000000000 --- a/test/packetimpact/testbench/dut.go +++ /dev/null @@ -1,832 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package testbench - -import ( - "context" - "encoding/binary" - "fmt" - "net" - "testing" - "time" - - "golang.org/x/sys/unix" - "google.golang.org/grpc" - "google.golang.org/grpc/keepalive" - "gvisor.dev/gvisor/pkg/abi/linux" - bin "gvisor.dev/gvisor/pkg/binary" - "gvisor.dev/gvisor/pkg/hostarch" - pb "gvisor.dev/gvisor/test/packetimpact/proto/posix_server_go_proto" -) - -// DUT communicates with the DUT to force it to make POSIX calls. -type DUT struct { - conn *grpc.ClientConn - posixServer POSIXClient - Net *DUTTestNet - Uname *DUTUname -} - -// NewDUT creates a new connection with the DUT over gRPC. -func NewDUT(t *testing.T) DUT { - t.Helper() - info := getDUTInfo() - dut := info.ConnectToDUT(t) - t.Cleanup(func() { - dut.TearDownConnection() - info.release() - }) - return dut -} - -// ConnectToDUT connects to DUT through gRPC. -func (info *DUTInfo) ConnectToDUT(t *testing.T) DUT { - t.Helper() - - n := info.Net - posixServerAddress := net.JoinHostPort(n.POSIXServerIP.String(), fmt.Sprintf("%d", n.POSIXServerPort)) - conn, err := grpc.Dial(posixServerAddress, grpc.WithInsecure(), grpc.WithKeepaliveParams(keepalive.ClientParameters{Timeout: RPCKeepalive})) - if err != nil { - t.Fatalf("failed to grpc.Dial(%s): %s", posixServerAddress, err) - } - posixServer := NewPOSIXClient(conn) - return DUT{ - conn: conn, - posixServer: posixServer, - Net: n, - Uname: info.Uname, - } -} - -// TearDownConnection closes the underlying connection. -func (dut *DUT) TearDownConnection() { - dut.conn.Close() -} - -func (dut *DUT) sockaddrToProto(t *testing.T, sa unix.Sockaddr) *pb.Sockaddr { - t.Helper() - - switch s := sa.(type) { - case *unix.SockaddrInet4: - return &pb.Sockaddr{ - Sockaddr: &pb.Sockaddr_In{ - In: &pb.SockaddrIn{ - Family: unix.AF_INET, - Port: uint32(s.Port), - Addr: s.Addr[:], - }, - }, - } - case *unix.SockaddrInet6: - return &pb.Sockaddr{ - Sockaddr: &pb.Sockaddr_In6{ - In6: &pb.SockaddrIn6{ - Family: unix.AF_INET6, - Port: uint32(s.Port), - Flowinfo: 0, - ScopeId: s.ZoneId, - Addr: s.Addr[:], - }, - }, - } - } - t.Fatalf("can't parse Sockaddr struct: %+v", sa) - return nil -} - -func (dut *DUT) protoToSockaddr(t *testing.T, sa *pb.Sockaddr) unix.Sockaddr { - t.Helper() - - switch s := sa.Sockaddr.(type) { - case *pb.Sockaddr_In: - ret := unix.SockaddrInet4{ - Port: int(s.In.GetPort()), - } - copy(ret.Addr[:], s.In.GetAddr()) - return &ret - case *pb.Sockaddr_In6: - ret := unix.SockaddrInet6{ - Port: int(s.In6.GetPort()), - ZoneId: s.In6.GetScopeId(), - } - copy(ret.Addr[:], s.In6.GetAddr()) - return &ret - } - t.Fatalf("can't parse Sockaddr proto: %#v", sa) - return nil -} - -// CreateBoundSocket makes a new socket on the DUT, with type typ and protocol -// proto, and bound to the IP address addr. Returns the new file descriptor and -// the port that was selected on the DUT. -func (dut *DUT) CreateBoundSocket(t *testing.T, typ, proto int32, addr net.IP) (int32, uint16) { - t.Helper() - - var fd int32 - if addr.To4() != nil { - fd = dut.Socket(t, unix.AF_INET, typ, proto) - sa := unix.SockaddrInet4{} - copy(sa.Addr[:], addr.To4()) - dut.Bind(t, fd, &sa) - } else if addr.To16() != nil { - fd = dut.Socket(t, unix.AF_INET6, typ, proto) - sa := unix.SockaddrInet6{} - copy(sa.Addr[:], addr.To16()) - sa.ZoneId = dut.Net.RemoteDevID - dut.Bind(t, fd, &sa) - } else { - t.Fatalf("invalid IP address: %s", addr) - } - sa := dut.GetSockName(t, fd) - var port int - switch s := sa.(type) { - case *unix.SockaddrInet4: - port = s.Port - case *unix.SockaddrInet6: - port = s.Port - default: - t.Fatalf("unknown sockaddr type from getsockname: %T", sa) - } - return fd, uint16(port) -} - -// CreateListener makes a new TCP connection. If it fails, the test ends. -func (dut *DUT) CreateListener(t *testing.T, typ, proto, backlog int32) (int32, uint16) { - t.Helper() - - fd, remotePort := dut.CreateBoundSocket(t, typ, proto, dut.Net.RemoteIPv4) - dut.Listen(t, fd, backlog) - return fd, remotePort -} - -// All the functions that make gRPC calls to the POSIX service are below, sorted -// alphabetically. - -// Accept calls accept on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over the timeout or error handling is needed, use -// AcceptWithErrno. -func (dut *DUT) Accept(t *testing.T, sockfd int32) (int32, unix.Sockaddr) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - fd, sa, err := dut.AcceptWithErrno(ctx, t, sockfd) - if fd < 0 { - t.Fatalf("failed to accept: %s", err) - } - return fd, sa -} - -// AcceptWithErrno calls accept on the DUT. -func (dut *DUT) AcceptWithErrno(ctx context.Context, t *testing.T, sockfd int32) (int32, unix.Sockaddr, error) { - t.Helper() - - req := &pb.AcceptRequest{ - Sockfd: sockfd, - } - resp, err := dut.posixServer.Accept(ctx, req) - if err != nil { - t.Fatalf("failed to call Accept: %s", err) - } - return resp.GetFd(), dut.protoToSockaddr(t, resp.GetAddr()), unix.Errno(resp.GetErrno_()) -} - -// Bind calls bind on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over the timeout or error handling is -// needed, use BindWithErrno. -func (dut *DUT) Bind(t *testing.T, fd int32, sa unix.Sockaddr) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.BindWithErrno(ctx, t, fd, sa) - if ret != 0 { - t.Fatalf("failed to bind socket: %s", err) - } -} - -// BindWithErrno calls bind on the DUT. -func (dut *DUT) BindWithErrno(ctx context.Context, t *testing.T, fd int32, sa unix.Sockaddr) (int32, error) { - t.Helper() - - req := &pb.BindRequest{ - Sockfd: fd, - Addr: dut.sockaddrToProto(t, sa), - } - resp, err := dut.posixServer.Bind(ctx, req) - if err != nil { - t.Fatalf("failed to call Bind: %s", err) - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} - -// Close calls close on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over the timeout or error handling is needed, use -// CloseWithErrno. -func (dut *DUT) Close(t *testing.T, fd int32) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.CloseWithErrno(ctx, t, fd) - if ret != 0 { - t.Fatalf("failed to close: %s", err) - } -} - -// CloseWithErrno calls close on the DUT. -func (dut *DUT) CloseWithErrno(ctx context.Context, t *testing.T, fd int32) (int32, error) { - t.Helper() - - req := &pb.CloseRequest{ - Fd: fd, - } - resp, err := dut.posixServer.Close(ctx, req) - if err != nil { - t.Fatalf("failed to call Close: %s", err) - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} - -// Connect calls connect on the DUT and causes a fatal test failure if it -// doesn't succeed. If more control over the timeout or error handling is -// needed, use ConnectWithErrno. -func (dut *DUT) Connect(t *testing.T, fd int32, sa unix.Sockaddr) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.ConnectWithErrno(ctx, t, fd, sa) - // Ignore 'operation in progress' error that can be returned when the socket - // is non-blocking. - if err != unix.EINPROGRESS && ret != 0 { - t.Fatalf("failed to connect socket: %s", err) - } -} - -// ConnectWithErrno calls bind on the DUT. -func (dut *DUT) ConnectWithErrno(ctx context.Context, t *testing.T, fd int32, sa unix.Sockaddr) (int32, error) { - t.Helper() - - req := &pb.ConnectRequest{ - Sockfd: fd, - Addr: dut.sockaddrToProto(t, sa), - } - resp, err := dut.posixServer.Connect(ctx, req) - if err != nil { - t.Fatalf("failed to call Connect: %s", err) - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} - -// GetSockName calls getsockname on the DUT and causes a fatal test failure if -// it doesn't succeed. If more control over the timeout or error handling is -// needed, use GetSockNameWithErrno. -func (dut *DUT) GetSockName(t *testing.T, sockfd int32) unix.Sockaddr { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, sa, err := dut.GetSockNameWithErrno(ctx, t, sockfd) - if ret != 0 { - t.Fatalf("failed to getsockname: %s", err) - } - return sa -} - -// GetSockNameWithErrno calls getsockname on the DUT. -func (dut *DUT) GetSockNameWithErrno(ctx context.Context, t *testing.T, sockfd int32) (int32, unix.Sockaddr, error) { - t.Helper() - - req := &pb.GetSockNameRequest{ - Sockfd: sockfd, - } - resp, err := dut.posixServer.GetSockName(ctx, req) - if err != nil { - t.Fatalf("failed to call Bind: %s", err) - } - return resp.GetRet(), dut.protoToSockaddr(t, resp.GetAddr()), unix.Errno(resp.GetErrno_()) -} - -func (dut *DUT) getSockOpt(ctx context.Context, t *testing.T, sockfd, level, optname, optlen int32, typ pb.GetSockOptRequest_SockOptType) (int32, *pb.SockOptVal, error) { - t.Helper() - - req := &pb.GetSockOptRequest{ - Sockfd: sockfd, - Level: level, - Optname: optname, - Optlen: optlen, - Type: typ, - } - resp, err := dut.posixServer.GetSockOpt(ctx, req) - if err != nil { - t.Fatalf("failed to call GetSockOpt: %s", err) - } - optval := resp.GetOptval() - if optval == nil { - t.Fatalf("GetSockOpt response does not contain a value") - } - return resp.GetRet(), optval, unix.Errno(resp.GetErrno_()) -} - -// GetSockOpt calls getsockopt on the DUT and causes a fatal test failure if it -// doesn't succeed. If more control over the timeout or error handling is -// needed, use GetSockOptWithErrno. Because endianess and the width of values -// might differ between the testbench and DUT architectures, prefer to use a -// more specific GetSockOptXxx function. -func (dut *DUT) GetSockOpt(t *testing.T, sockfd, level, optname, optlen int32) []byte { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, optval, err := dut.GetSockOptWithErrno(ctx, t, sockfd, level, optname, optlen) - if ret != 0 { - t.Fatalf("failed to GetSockOpt: %s", err) - } - return optval -} - -// GetSockOptWithErrno calls getsockopt on the DUT. Because endianess and the -// width of values might differ between the testbench and DUT architectures, -// prefer to use a more specific GetSockOptXxxWithErrno function. -func (dut *DUT) GetSockOptWithErrno(ctx context.Context, t *testing.T, sockfd, level, optname, optlen int32) (int32, []byte, error) { - t.Helper() - - ret, optval, errno := dut.getSockOpt(ctx, t, sockfd, level, optname, optlen, pb.GetSockOptRequest_BYTES) - bytesval, ok := optval.Val.(*pb.SockOptVal_Bytesval) - if !ok { - t.Fatalf("GetSockOpt got value type: %T, want bytes", optval.Val) - } - return ret, bytesval.Bytesval, errno -} - -// GetSockOptInt calls getsockopt on the DUT and causes a fatal test failure -// if it doesn't succeed. If more control over the int optval or error handling -// is needed, use GetSockOptIntWithErrno. -func (dut *DUT) GetSockOptInt(t *testing.T, sockfd, level, optname int32) int32 { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, intval, err := dut.GetSockOptIntWithErrno(ctx, t, sockfd, level, optname) - if ret != 0 { - t.Fatalf("failed to GetSockOptInt: %s", err) - } - return intval -} - -// GetSockOptIntWithErrno calls getsockopt with an integer optval. -func (dut *DUT) GetSockOptIntWithErrno(ctx context.Context, t *testing.T, sockfd, level, optname int32) (int32, int32, error) { - t.Helper() - - ret, optval, errno := dut.getSockOpt(ctx, t, sockfd, level, optname, 0, pb.GetSockOptRequest_INT) - intval, ok := optval.Val.(*pb.SockOptVal_Intval) - if !ok { - t.Fatalf("GetSockOpt got value type: %T, want int", optval.Val) - } - return ret, intval.Intval, errno -} - -// GetSockOptTimeval calls getsockopt on the DUT and causes a fatal test failure -// if it doesn't succeed. If more control over the timeout or error handling is -// needed, use GetSockOptTimevalWithErrno. -func (dut *DUT) GetSockOptTimeval(t *testing.T, sockfd, level, optname int32) unix.Timeval { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, timeval, err := dut.GetSockOptTimevalWithErrno(ctx, t, sockfd, level, optname) - if ret != 0 { - t.Fatalf("failed to GetSockOptTimeval: %s", err) - } - return timeval -} - -// GetSockOptTimevalWithErrno calls getsockopt and returns a timeval. -func (dut *DUT) GetSockOptTimevalWithErrno(ctx context.Context, t *testing.T, sockfd, level, optname int32) (int32, unix.Timeval, error) { - t.Helper() - - ret, optval, errno := dut.getSockOpt(ctx, t, sockfd, level, optname, 0, pb.GetSockOptRequest_TIME) - tv, ok := optval.Val.(*pb.SockOptVal_Timeval) - if !ok { - t.Fatalf("GetSockOpt got value type: %T, want timeval", optval.Val) - } - timeval := unix.Timeval{ - Sec: tv.Timeval.Seconds, - Usec: tv.Timeval.Microseconds, - } - return ret, timeval, errno -} - -// GetSockOptTCPInfo retreives TCPInfo for the given socket descriptor. -func (dut *DUT) GetSockOptTCPInfo(t *testing.T, sockfd int32) linux.TCPInfo { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, info, err := dut.GetSockOptTCPInfoWithErrno(ctx, t, sockfd) - if ret != 0 || err != unix.Errno(0) { - t.Fatalf("failed to GetSockOptTCPInfo: %s", err) - } - return info -} - -// GetSockOptTCPInfoWithErrno retreives TCPInfo with any errno. -func (dut *DUT) GetSockOptTCPInfoWithErrno(ctx context.Context, t *testing.T, sockfd int32) (int32, linux.TCPInfo, error) { - t.Helper() - - info := linux.TCPInfo{} - ret, infoBytes, errno := dut.GetSockOptWithErrno(ctx, t, sockfd, unix.SOL_TCP, unix.TCP_INFO, int32(linux.SizeOfTCPInfo)) - if got, want := len(infoBytes), linux.SizeOfTCPInfo; got != want { - t.Fatalf("expected %T, got %d bytes want %d bytes", info, got, want) - } - bin.Unmarshal(infoBytes, hostarch.ByteOrder, &info) - - return ret, info, errno -} - -// Listen calls listen on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over the timeout or error handling is needed, use -// ListenWithErrno. -func (dut *DUT) Listen(t *testing.T, sockfd, backlog int32) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.ListenWithErrno(ctx, t, sockfd, backlog) - if ret != 0 { - t.Fatalf("failed to listen: %s", err) - } -} - -// ListenWithErrno calls listen on the DUT. -func (dut *DUT) ListenWithErrno(ctx context.Context, t *testing.T, sockfd, backlog int32) (int32, error) { - t.Helper() - - req := &pb.ListenRequest{ - Sockfd: sockfd, - Backlog: backlog, - } - resp, err := dut.posixServer.Listen(ctx, req) - if err != nil { - t.Fatalf("failed to call Listen: %s", err) - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} - -// PollOne calls poll on the DUT and asserts that the expected event must be -// signaled on the given fd within the given timeout. -func (dut *DUT) PollOne(t *testing.T, fd int32, events int16, timeout time.Duration) { - t.Helper() - - pfds := dut.Poll(t, []unix.PollFd{{Fd: fd, Events: events}}, timeout) - if n := len(pfds); n != 1 { - t.Fatalf("Poll returned %d ready file descriptors, expected 1", n) - } - if readyFd := pfds[0].Fd; readyFd != fd { - t.Fatalf("Poll returned an fd %d that was not requested (%d)", readyFd, fd) - } - if got, want := pfds[0].Revents, int16(events); got&want != want { - t.Fatalf("Poll returned events does not include all of the interested events, got: %#b, want: %#b", got, want) - } -} - -// Poll calls poll on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over error handling is needed, use PollWithErrno. -// Only pollfds with non-empty revents are returned, the only way to tie the -// response back to the original request is using the fd number. -func (dut *DUT) Poll(t *testing.T, pfds []unix.PollFd, timeout time.Duration) []unix.PollFd { - t.Helper() - - ctx := context.Background() - var cancel context.CancelFunc - if timeout >= 0 { - ctx, cancel = context.WithTimeout(ctx, timeout+RPCTimeout) - defer cancel() - } - ret, result, err := dut.PollWithErrno(ctx, t, pfds, timeout) - if ret < 0 { - t.Fatalf("failed to poll: %s", err) - } - return result -} - -// PollWithErrno calls poll on the DUT. -func (dut *DUT) PollWithErrno(ctx context.Context, t *testing.T, pfds []unix.PollFd, timeout time.Duration) (int32, []unix.PollFd, error) { - t.Helper() - - req := &pb.PollRequest{ - TimeoutMillis: int32(timeout.Milliseconds()), - } - for _, pfd := range pfds { - req.Pfds = append(req.Pfds, &pb.PollFd{ - Fd: pfd.Fd, - Events: uint32(pfd.Events), - }) - } - resp, err := dut.posixServer.Poll(ctx, req) - if err != nil { - t.Fatalf("failed to call Poll: %s", err) - } - if ret, npfds := resp.GetRet(), len(resp.GetPfds()); ret >= 0 && int(ret) != npfds { - t.Fatalf("nonsensical poll response: ret(%d) != len(pfds)(%d)", ret, npfds) - } - var result []unix.PollFd - for _, protoPfd := range resp.GetPfds() { - result = append(result, unix.PollFd{ - Fd: protoPfd.GetFd(), - Revents: int16(protoPfd.GetEvents()), - }) - } - return resp.GetRet(), result, unix.Errno(resp.GetErrno_()) -} - -// Send calls send on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over the timeout or error handling is needed, use -// SendWithErrno. -func (dut *DUT) Send(t *testing.T, sockfd int32, buf []byte, flags int32) int32 { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.SendWithErrno(ctx, t, sockfd, buf, flags) - if ret == -1 { - t.Fatalf("failed to send: %s", err) - } - return ret -} - -// SendWithErrno calls send on the DUT. -func (dut *DUT) SendWithErrno(ctx context.Context, t *testing.T, sockfd int32, buf []byte, flags int32) (int32, error) { - t.Helper() - - req := &pb.SendRequest{ - Sockfd: sockfd, - Buf: buf, - Flags: flags, - } - resp, err := dut.posixServer.Send(ctx, req) - if err != nil { - t.Fatalf("failed to call Send: %s", err) - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} - -// SendTo calls sendto on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over the timeout or error handling is needed, use -// SendToWithErrno. -func (dut *DUT) SendTo(t *testing.T, sockfd int32, buf []byte, flags int32, destAddr unix.Sockaddr) int32 { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.SendToWithErrno(ctx, t, sockfd, buf, flags, destAddr) - if ret == -1 { - t.Fatalf("failed to sendto: %s", err) - } - return ret -} - -// SendToWithErrno calls sendto on the DUT. -func (dut *DUT) SendToWithErrno(ctx context.Context, t *testing.T, sockfd int32, buf []byte, flags int32, destAddr unix.Sockaddr) (int32, error) { - t.Helper() - - req := &pb.SendToRequest{ - Sockfd: sockfd, - Buf: buf, - Flags: flags, - DestAddr: dut.sockaddrToProto(t, destAddr), - } - resp, err := dut.posixServer.SendTo(ctx, req) - if err != nil { - t.Fatalf("failed to call SendTo: %s", err) - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} - -// SetNonBlocking will set O_NONBLOCK flag for fd if nonblocking -// is true, otherwise it will clear the flag. -func (dut *DUT) SetNonBlocking(t *testing.T, fd int32, nonblocking bool) { - t.Helper() - - req := &pb.SetNonblockingRequest{ - Fd: fd, - Nonblocking: nonblocking, - } - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - - resp, err := dut.posixServer.SetNonblocking(ctx, req) - if err != nil { - t.Fatalf("failed to call SetNonblocking: %s", err) - } - if resp.GetRet() == -1 { - t.Fatalf("fcntl(%d, %s) failed: %s", fd, resp.GetCmd(), unix.Errno(resp.GetErrno_())) - } -} - -func (dut *DUT) setSockOpt(ctx context.Context, t *testing.T, sockfd, level, optname int32, optval *pb.SockOptVal) (int32, error) { - t.Helper() - - req := &pb.SetSockOptRequest{ - Sockfd: sockfd, - Level: level, - Optname: optname, - Optval: optval, - } - resp, err := dut.posixServer.SetSockOpt(ctx, req) - if err != nil { - t.Fatalf("failed to call SetSockOpt: %s", err) - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} - -// SetSockOpt calls setsockopt on the DUT and causes a fatal test failure if it -// doesn't succeed. If more control over the timeout or error handling is -// needed, use SetSockOptWithErrno. Because endianess and the width of values -// might differ between the testbench and DUT architectures, prefer to use a -// more specific SetSockOptXxx function. -func (dut *DUT) SetSockOpt(t *testing.T, sockfd, level, optname int32, optval []byte) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.SetSockOptWithErrno(ctx, t, sockfd, level, optname, optval) - if ret != 0 { - t.Fatalf("failed to SetSockOpt: %s", err) - } -} - -// SetSockOptWithErrno calls setsockopt on the DUT. Because endianess and the -// width of values might differ between the testbench and DUT architectures, -// prefer to use a more specific SetSockOptXxxWithErrno function. -func (dut *DUT) SetSockOptWithErrno(ctx context.Context, t *testing.T, sockfd, level, optname int32, optval []byte) (int32, error) { - t.Helper() - - return dut.setSockOpt(ctx, t, sockfd, level, optname, &pb.SockOptVal{Val: &pb.SockOptVal_Bytesval{optval}}) -} - -// SetSockOptInt calls setsockopt on the DUT and causes a fatal test failure -// if it doesn't succeed. If more control over the int optval or error handling -// is needed, use SetSockOptIntWithErrno. -func (dut *DUT) SetSockOptInt(t *testing.T, sockfd, level, optname, optval int32) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.SetSockOptIntWithErrno(ctx, t, sockfd, level, optname, optval) - if ret != 0 { - t.Fatalf("failed to SetSockOptInt: %s", err) - } -} - -// SetSockOptIntWithErrno calls setsockopt with an integer optval. -func (dut *DUT) SetSockOptIntWithErrno(ctx context.Context, t *testing.T, sockfd, level, optname, optval int32) (int32, error) { - t.Helper() - - return dut.setSockOpt(ctx, t, sockfd, level, optname, &pb.SockOptVal{Val: &pb.SockOptVal_Intval{optval}}) -} - -// SetSockOptTimeval calls setsockopt on the DUT and causes a fatal test failure -// if it doesn't succeed. If more control over the timeout or error handling is -// needed, use SetSockOptTimevalWithErrno. -func (dut *DUT) SetSockOptTimeval(t *testing.T, sockfd, level, optname int32, tv *unix.Timeval) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.SetSockOptTimevalWithErrno(ctx, t, sockfd, level, optname, tv) - if ret != 0 { - t.Fatalf("failed to SetSockOptTimeval: %s", err) - } -} - -// SetSockOptTimevalWithErrno calls setsockopt with the timeval converted to -// bytes. -func (dut *DUT) SetSockOptTimevalWithErrno(ctx context.Context, t *testing.T, sockfd, level, optname int32, tv *unix.Timeval) (int32, error) { - t.Helper() - - timeval := pb.Timeval{ - Seconds: int64(tv.Sec), - Microseconds: int64(tv.Usec), - } - return dut.setSockOpt(ctx, t, sockfd, level, optname, &pb.SockOptVal{Val: &pb.SockOptVal_Timeval{&timeval}}) -} - -// Socket calls socket on the DUT and returns the file descriptor. If socket -// fails on the DUT, the test ends. -func (dut *DUT) Socket(t *testing.T, domain, typ, proto int32) int32 { - t.Helper() - - fd, err := dut.SocketWithErrno(t, domain, typ, proto) - if fd < 0 { - t.Fatalf("failed to create socket: %s", err) - } - return fd -} - -// SocketWithErrno calls socket on the DUT and returns the fd and errno. -func (dut *DUT) SocketWithErrno(t *testing.T, domain, typ, proto int32) (int32, error) { - t.Helper() - - req := &pb.SocketRequest{ - Domain: domain, - Type: typ, - Protocol: proto, - } - ctx := context.Background() - resp, err := dut.posixServer.Socket(ctx, req) - if err != nil { - t.Fatalf("failed to call Socket: %s", err) - } - return resp.GetFd(), unix.Errno(resp.GetErrno_()) -} - -// Recv calls recv on the DUT and causes a fatal test failure if it doesn't -// succeed. If more control over the timeout or error handling is needed, use -// RecvWithErrno. -func (dut *DUT) Recv(t *testing.T, sockfd, len, flags int32) []byte { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, buf, err := dut.RecvWithErrno(ctx, t, sockfd, len, flags) - if ret == -1 { - t.Fatalf("failed to recv: %s", err) - } - return buf -} - -// RecvWithErrno calls recv on the DUT. -func (dut *DUT) RecvWithErrno(ctx context.Context, t *testing.T, sockfd, len, flags int32) (int32, []byte, error) { - t.Helper() - - req := &pb.RecvRequest{ - Sockfd: sockfd, - Len: len, - Flags: flags, - } - resp, err := dut.posixServer.Recv(ctx, req) - if err != nil { - t.Fatalf("failed to call Recv: %s", err) - } - return resp.GetRet(), resp.GetBuf(), unix.Errno(resp.GetErrno_()) -} - -// SetSockLingerOption sets SO_LINGER socket option on the DUT. -func (dut *DUT) SetSockLingerOption(t *testing.T, sockfd int32, timeout time.Duration, enable bool) { - var linger unix.Linger - if enable { - linger.Onoff = 1 - } - linger.Linger = int32(timeout / time.Second) - - buf := make([]byte, 8) - binary.LittleEndian.PutUint32(buf, uint32(linger.Onoff)) - binary.LittleEndian.PutUint32(buf[4:], uint32(linger.Linger)) - dut.SetSockOpt(t, sockfd, unix.SOL_SOCKET, unix.SO_LINGER, buf) -} - -// Shutdown calls shutdown on the DUT and causes a fatal test failure if it -// doesn't succeed. If more control over the timeout or error handling is -// needed, use ShutdownWithErrno. -func (dut *DUT) Shutdown(t *testing.T, fd, how int32) { - t.Helper() - - ctx, cancel := context.WithTimeout(context.Background(), RPCTimeout) - defer cancel() - ret, err := dut.ShutdownWithErrno(ctx, t, fd, how) - if ret != 0 { - t.Fatalf("failed to shutdown(%d, %d): %s", fd, how, err) - } -} - -// ShutdownWithErrno calls shutdown on the DUT. -func (dut *DUT) ShutdownWithErrno(ctx context.Context, t *testing.T, fd, how int32) (int32, error) { - t.Helper() - - req := &pb.ShutdownRequest{ - Fd: fd, - How: how, - } - resp, err := dut.posixServer.Shutdown(ctx, req) - if err != nil { - t.Fatalf("failed to call Shutdown: %s", err) - } - if resp.GetErrno_() == 0 { - return resp.GetRet(), nil - } - return resp.GetRet(), unix.Errno(resp.GetErrno_()) -} |