diff options
-rw-r--r-- | pkg/sentry/socket/BUILD | 1 | ||||
-rw-r--r-- | pkg/sentry/socket/netstack/netstack.go | 184 | ||||
-rw-r--r-- | pkg/sentry/socket/netstack/netstack_vfs2.go | 2 | ||||
-rw-r--r-- | pkg/sentry/socket/netstack/provider.go | 2 | ||||
-rw-r--r-- | pkg/sentry/socket/netstack/provider_vfs2.go | 2 | ||||
-rw-r--r-- | pkg/sentry/socket/socket.go | 175 | ||||
-rw-r--r-- | pkg/sentry/socket/unix/unix.go | 12 | ||||
-rw-r--r-- | pkg/sentry/socket/unix/unix_vfs2.go | 2 | ||||
-rw-r--r-- | pkg/sentry/strace/BUILD | 2 | ||||
-rw-r--r-- | pkg/sentry/strace/socket.go | 4 |
10 files changed, 201 insertions, 185 deletions
diff --git a/pkg/sentry/socket/BUILD b/pkg/sentry/socket/BUILD index a3f775d15..cc1f6bfcc 100644 --- a/pkg/sentry/socket/BUILD +++ b/pkg/sentry/socket/BUILD @@ -20,6 +20,7 @@ go_library( "//pkg/sentry/vfs", "//pkg/syserr", "//pkg/tcpip", + "//pkg/tcpip/header", "//pkg/usermem", ], ) diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go index 814e2387e..fc5ec4f89 100644 --- a/pkg/sentry/socket/netstack/netstack.go +++ b/pkg/sentry/socket/netstack/netstack.go @@ -209,18 +209,6 @@ const sizeOfInt32 int = 4 var errStackType = syserr.New("expected but did not receive a netstack.Stack", linux.EINVAL) -// ntohs converts a 16-bit number from network byte order to host byte order. It -// assumes that the host is little endian. -func ntohs(v uint16) uint16 { - return v<<8 | v>>8 -} - -// htons converts a 16-bit number from host byte order to network byte order. It -// assumes that the host is little endian. -func htons(v uint16) uint16 { - return ntohs(v) -} - // commonEndpoint represents the intersection of a tcpip.Endpoint and a // transport.Endpoint. type commonEndpoint interface { @@ -359,88 +347,6 @@ func bytesToIPAddress(addr []byte) tcpip.Address { return tcpip.Address(addr) } -// AddressAndFamily reads an sockaddr struct from the given address and -// converts it to the FullAddress format. It supports AF_UNIX, AF_INET, -// AF_INET6, and AF_PACKET addresses. -// -// AddressAndFamily returns an address and its family. -func AddressAndFamily(addr []byte) (tcpip.FullAddress, uint16, *syserr.Error) { - // Make sure we have at least 2 bytes for the address family. - if len(addr) < 2 { - return tcpip.FullAddress{}, 0, syserr.ErrInvalidArgument - } - - // Get the rest of the fields based on the address family. - switch family := usermem.ByteOrder.Uint16(addr); family { - case linux.AF_UNIX: - path := addr[2:] - if len(path) > linux.UnixPathMax { - return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument - } - // Drop the terminating NUL (if one exists) and everything after - // it for filesystem (non-abstract) addresses. - if len(path) > 0 && path[0] != 0 { - if n := bytes.IndexByte(path[1:], 0); n >= 0 { - path = path[:n+1] - } - } - return tcpip.FullAddress{ - Addr: tcpip.Address(path), - }, family, nil - - case linux.AF_INET: - var a linux.SockAddrInet - if len(addr) < sockAddrInetSize { - return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument - } - binary.Unmarshal(addr[:sockAddrInetSize], usermem.ByteOrder, &a) - - out := tcpip.FullAddress{ - Addr: bytesToIPAddress(a.Addr[:]), - Port: ntohs(a.Port), - } - return out, family, nil - - case linux.AF_INET6: - var a linux.SockAddrInet6 - if len(addr) < sockAddrInet6Size { - return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument - } - binary.Unmarshal(addr[:sockAddrInet6Size], usermem.ByteOrder, &a) - - out := tcpip.FullAddress{ - Addr: bytesToIPAddress(a.Addr[:]), - Port: ntohs(a.Port), - } - if isLinkLocal(out.Addr) { - out.NIC = tcpip.NICID(a.Scope_id) - } - return out, family, nil - - case linux.AF_PACKET: - var a linux.SockAddrLink - if len(addr) < sockAddrLinkSize { - return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument - } - binary.Unmarshal(addr[:sockAddrLinkSize], usermem.ByteOrder, &a) - if a.Family != linux.AF_PACKET || a.HardwareAddrLen != header.EthernetAddressSize { - return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument - } - - // TODO(gvisor.dev/issue/173): Return protocol too. - return tcpip.FullAddress{ - NIC: tcpip.NICID(a.InterfaceIndex), - Addr: tcpip.Address(a.HardwareAddr[:header.EthernetAddressSize]), - }, family, nil - - case linux.AF_UNSPEC: - return tcpip.FullAddress{}, family, nil - - default: - return tcpip.FullAddress{}, 0, syserr.ErrAddressFamilyNotSupported - } -} - func (s *socketOpsCommon) isPacketBased() bool { return s.skType == linux.SOCK_DGRAM || s.skType == linux.SOCK_SEQPACKET || s.skType == linux.SOCK_RDM || s.skType == linux.SOCK_RAW } @@ -741,7 +647,7 @@ func (s *socketOpsCommon) mapFamily(addr tcpip.FullAddress, family uint16) tcpip // Connect implements the linux syscall connect(2) for sockets backed by // tpcip.Endpoint. func (s *socketOpsCommon) Connect(t *kernel.Task, sockaddr []byte, blocking bool) *syserr.Error { - addr, family, err := AddressAndFamily(sockaddr) + addr, family, err := socket.AddressAndFamily(sockaddr) if err != nil { return err } @@ -822,7 +728,7 @@ func (s *socketOpsCommon) Bind(t *kernel.Task, sockaddr []byte) *syserr.Error { } } else { var err *syserr.Error - addr, family, err = AddressAndFamily(sockaddr) + addr, family, err = socket.AddressAndFamily(sockaddr) if err != nil { return err } @@ -913,7 +819,7 @@ func (s *SocketOperations) Accept(t *kernel.Task, peerRequested bool, flags int, var addr linux.SockAddr var addrLen uint32 if peerAddr != nil { - addr, addrLen = ConvertAddress(s.family, *peerAddr) + addr, addrLen = socket.ConvertAddress(s.family, *peerAddr) } fd, e := t.NewFDFrom(0, ns, kernel.FDFlags{ @@ -1496,7 +1402,7 @@ func getSockOptIPv6(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name return nil, syserr.TranslateNetstackError(err) } - a, _ := ConvertAddress(linux.AF_INET6, tcpip.FullAddress(v)) + a, _ := socket.ConvertAddress(linux.AF_INET6, tcpip.FullAddress(v)) return a.(*linux.SockAddrInet6), nil case linux.IP6T_SO_GET_INFO: @@ -1614,7 +1520,7 @@ func getSockOptIP(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name in return nil, syserr.TranslateNetstackError(err) } - a, _ := ConvertAddress(linux.AF_INET, tcpip.FullAddress{Addr: v.InterfaceAddr}) + a, _ := socket.ConvertAddress(linux.AF_INET, tcpip.FullAddress{Addr: v.InterfaceAddr}) return &a.(*linux.SockAddrInet).Addr, nil @@ -1677,7 +1583,7 @@ func getSockOptIP(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name in return nil, syserr.TranslateNetstackError(err) } - a, _ := ConvertAddress(linux.AF_INET, tcpip.FullAddress(v)) + a, _ := socket.ConvertAddress(linux.AF_INET, tcpip.FullAddress(v)) return a.(*linux.SockAddrInet), nil case linux.IPT_SO_GET_INFO: @@ -2322,7 +2228,7 @@ func setSockOptIP(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name in return syserr.TranslateNetstackError(ep.SetSockOpt(&tcpip.MulticastInterfaceOption{ NIC: tcpip.NICID(req.InterfaceIndex), - InterfaceAddr: bytesToIPAddress(req.InterfaceAddr[:]), + InterfaceAddr: socket.BytesToIPAddress(req.InterfaceAddr[:]), })) case linux.IP_MULTICAST_LOOP: @@ -2579,72 +2485,6 @@ func emitUnimplementedEventIP(t *kernel.Task, name int) { } } -// isLinkLocal determines if the given IPv6 address is link-local. This is the -// case when it has the fe80::/10 prefix. This check is used to determine when -// the NICID is relevant for a given IPv6 address. -func isLinkLocal(addr tcpip.Address) bool { - return len(addr) >= 2 && addr[0] == 0xfe && addr[1]&0xc0 == 0x80 -} - -// ConvertAddress converts the given address to a native format. -func ConvertAddress(family int, addr tcpip.FullAddress) (linux.SockAddr, uint32) { - switch family { - case linux.AF_UNIX: - var out linux.SockAddrUnix - out.Family = linux.AF_UNIX - l := len([]byte(addr.Addr)) - for i := 0; i < l; i++ { - out.Path[i] = int8(addr.Addr[i]) - } - - // Linux returns the used length of the address struct (including the - // null terminator) for filesystem paths. The Family field is 2 bytes. - // It is sometimes allowed to exclude the null terminator if the - // address length is the max. Abstract and empty paths always return - // the full exact length. - if l == 0 || out.Path[0] == 0 || l == len(out.Path) { - return &out, uint32(2 + l) - } - return &out, uint32(3 + l) - - case linux.AF_INET: - var out linux.SockAddrInet - copy(out.Addr[:], addr.Addr) - out.Family = linux.AF_INET - out.Port = htons(addr.Port) - return &out, uint32(sockAddrInetSize) - - case linux.AF_INET6: - var out linux.SockAddrInet6 - if len(addr.Addr) == header.IPv4AddressSize { - // Copy address in v4-mapped format. - copy(out.Addr[12:], addr.Addr) - out.Addr[10] = 0xff - out.Addr[11] = 0xff - } else { - copy(out.Addr[:], addr.Addr) - } - out.Family = linux.AF_INET6 - out.Port = htons(addr.Port) - if isLinkLocal(addr.Addr) { - out.Scope_id = uint32(addr.NIC) - } - return &out, uint32(sockAddrInet6Size) - - case linux.AF_PACKET: - // TODO(gvisor.dev/issue/173): Return protocol too. - var out linux.SockAddrLink - out.Family = linux.AF_PACKET - out.InterfaceIndex = int32(addr.NIC) - out.HardwareAddrLen = header.EthernetAddressSize - copy(out.HardwareAddr[:], addr.Addr) - return &out, uint32(sockAddrLinkSize) - - default: - return nil, 0 - } -} - // GetSockName implements the linux syscall getsockname(2) for sockets backed by // tcpip.Endpoint. func (s *socketOpsCommon) GetSockName(t *kernel.Task) (linux.SockAddr, uint32, *syserr.Error) { @@ -2653,7 +2493,7 @@ func (s *socketOpsCommon) GetSockName(t *kernel.Task) (linux.SockAddr, uint32, * return nil, 0, syserr.TranslateNetstackError(err) } - a, l := ConvertAddress(s.family, addr) + a, l := socket.ConvertAddress(s.family, addr) return a, l, nil } @@ -2665,7 +2505,7 @@ func (s *socketOpsCommon) GetPeerName(t *kernel.Task) (linux.SockAddr, uint32, * return nil, 0, syserr.TranslateNetstackError(err) } - a, l := ConvertAddress(s.family, addr) + a, l := socket.ConvertAddress(s.family, addr) return a, l, nil } @@ -2814,10 +2654,10 @@ func (s *socketOpsCommon) nonBlockingRead(ctx context.Context, dst usermem.IOSeq var addr linux.SockAddr var addrLen uint32 if isPacket && senderRequested { - addr, addrLen = ConvertAddress(s.family, s.sender) + addr, addrLen = socket.ConvertAddress(s.family, s.sender) switch v := addr.(type) { case *linux.SockAddrLink: - v.Protocol = htons(uint16(s.linkPacketInfo.Protocol)) + v.Protocol = socket.Htons(uint16(s.linkPacketInfo.Protocol)) v.PacketType = toLinuxPacketType(s.linkPacketInfo.PktType) } } @@ -2982,7 +2822,7 @@ func (s *socketOpsCommon) SendMsg(t *kernel.Task, src usermem.IOSequence, to []b var addr *tcpip.FullAddress if len(to) > 0 { - addrBuf, family, err := AddressAndFamily(to) + addrBuf, family, err := socket.AddressAndFamily(to) if err != nil { return 0, err } diff --git a/pkg/sentry/socket/netstack/netstack_vfs2.go b/pkg/sentry/socket/netstack/netstack_vfs2.go index 97f66cb98..b756bfca0 100644 --- a/pkg/sentry/socket/netstack/netstack_vfs2.go +++ b/pkg/sentry/socket/netstack/netstack_vfs2.go @@ -189,7 +189,7 @@ func (s *SocketVFS2) Accept(t *kernel.Task, peerRequested bool, flags int, block var addrLen uint32 if peerAddr != nil { // Get address of the peer and write it to peer slice. - addr, addrLen = ConvertAddress(s.family, *peerAddr) + addr, addrLen = socket.ConvertAddress(s.family, *peerAddr) } fd, e := t.NewFDFromVFS2(0, ns, kernel.FDFlags{ diff --git a/pkg/sentry/socket/netstack/provider.go b/pkg/sentry/socket/netstack/provider.go index ead3b2b79..c847ff1c7 100644 --- a/pkg/sentry/socket/netstack/provider.go +++ b/pkg/sentry/socket/netstack/provider.go @@ -158,7 +158,7 @@ func packetSocket(t *kernel.Task, epStack *Stack, stype linux.SockType, protocol // protocol is passed in network byte order, but netstack wants it in // host order. - netProto := tcpip.NetworkProtocolNumber(ntohs(uint16(protocol))) + netProto := tcpip.NetworkProtocolNumber(socket.Ntohs(uint16(protocol))) wq := &waiter.Queue{} ep, err := epStack.Stack.NewPacketEndpoint(cooked, netProto, wq) diff --git a/pkg/sentry/socket/netstack/provider_vfs2.go b/pkg/sentry/socket/netstack/provider_vfs2.go index 2a01143f6..0af805246 100644 --- a/pkg/sentry/socket/netstack/provider_vfs2.go +++ b/pkg/sentry/socket/netstack/provider_vfs2.go @@ -102,7 +102,7 @@ func packetSocketVFS2(t *kernel.Task, epStack *Stack, stype linux.SockType, prot // protocol is passed in network byte order, but netstack wants it in // host order. - netProto := tcpip.NetworkProtocolNumber(ntohs(uint16(protocol))) + netProto := tcpip.NetworkProtocolNumber(socket.Ntohs(uint16(protocol))) wq := &waiter.Queue{} ep, err := epStack.Stack.NewPacketEndpoint(cooked, netProto, wq) diff --git a/pkg/sentry/socket/socket.go b/pkg/sentry/socket/socket.go index fd31479e5..9049e8a21 100644 --- a/pkg/sentry/socket/socket.go +++ b/pkg/sentry/socket/socket.go @@ -18,6 +18,7 @@ package socket import ( + "bytes" "fmt" "sync/atomic" "syscall" @@ -35,6 +36,7 @@ import ( "gvisor.dev/gvisor/pkg/sentry/vfs" "gvisor.dev/gvisor/pkg/syserr" "gvisor.dev/gvisor/pkg/tcpip" + "gvisor.dev/gvisor/pkg/tcpip/header" "gvisor.dev/gvisor/pkg/usermem" ) @@ -460,3 +462,176 @@ func UnmarshalSockAddr(family int, data []byte) linux.SockAddr { panic(fmt.Sprintf("Unsupported socket family %v", family)) } } + +var sockAddrLinkSize = (&linux.SockAddrLink{}).SizeBytes() +var sockAddrInetSize = (&linux.SockAddrInet{}).SizeBytes() +var sockAddrInet6Size = (&linux.SockAddrInet6{}).SizeBytes() + +// Ntohs converts a 16-bit number from network byte order to host byte order. It +// assumes that the host is little endian. +func Ntohs(v uint16) uint16 { + return v<<8 | v>>8 +} + +// Htons converts a 16-bit number from host byte order to network byte order. It +// assumes that the host is little endian. +func Htons(v uint16) uint16 { + return Ntohs(v) +} + +// isLinkLocal determines if the given IPv6 address is link-local. This is the +// case when it has the fe80::/10 prefix. This check is used to determine when +// the NICID is relevant for a given IPv6 address. +func isLinkLocal(addr tcpip.Address) bool { + return len(addr) >= 2 && addr[0] == 0xfe && addr[1]&0xc0 == 0x80 +} + +// ConvertAddress converts the given address to a native format. +func ConvertAddress(family int, addr tcpip.FullAddress) (linux.SockAddr, uint32) { + switch family { + case linux.AF_UNIX: + var out linux.SockAddrUnix + out.Family = linux.AF_UNIX + l := len([]byte(addr.Addr)) + for i := 0; i < l; i++ { + out.Path[i] = int8(addr.Addr[i]) + } + + // Linux returns the used length of the address struct (including the + // null terminator) for filesystem paths. The Family field is 2 bytes. + // It is sometimes allowed to exclude the null terminator if the + // address length is the max. Abstract and empty paths always return + // the full exact length. + if l == 0 || out.Path[0] == 0 || l == len(out.Path) { + return &out, uint32(2 + l) + } + return &out, uint32(3 + l) + + case linux.AF_INET: + var out linux.SockAddrInet + copy(out.Addr[:], addr.Addr) + out.Family = linux.AF_INET + out.Port = Htons(addr.Port) + return &out, uint32(sockAddrInetSize) + + case linux.AF_INET6: + var out linux.SockAddrInet6 + if len(addr.Addr) == header.IPv4AddressSize { + // Copy address in v4-mapped format. + copy(out.Addr[12:], addr.Addr) + out.Addr[10] = 0xff + out.Addr[11] = 0xff + } else { + copy(out.Addr[:], addr.Addr) + } + out.Family = linux.AF_INET6 + out.Port = Htons(addr.Port) + if isLinkLocal(addr.Addr) { + out.Scope_id = uint32(addr.NIC) + } + return &out, uint32(sockAddrInet6Size) + + case linux.AF_PACKET: + // TODO(gvisor.dev/issue/173): Return protocol too. + var out linux.SockAddrLink + out.Family = linux.AF_PACKET + out.InterfaceIndex = int32(addr.NIC) + out.HardwareAddrLen = header.EthernetAddressSize + copy(out.HardwareAddr[:], addr.Addr) + return &out, uint32(sockAddrLinkSize) + + default: + return nil, 0 + } +} + +// BytesToIPAddress converts an IPv4 or IPv6 address from the user to the +// netstack representation taking any addresses into account. +func BytesToIPAddress(addr []byte) tcpip.Address { + if bytes.Equal(addr, make([]byte, 4)) || bytes.Equal(addr, make([]byte, 16)) { + return "" + } + return tcpip.Address(addr) +} + +// AddressAndFamily reads an sockaddr struct from the given address and +// converts it to the FullAddress format. It supports AF_UNIX, AF_INET, +// AF_INET6, and AF_PACKET addresses. +// +// AddressAndFamily returns an address and its family. +func AddressAndFamily(addr []byte) (tcpip.FullAddress, uint16, *syserr.Error) { + // Make sure we have at least 2 bytes for the address family. + if len(addr) < 2 { + return tcpip.FullAddress{}, 0, syserr.ErrInvalidArgument + } + + // Get the rest of the fields based on the address family. + switch family := usermem.ByteOrder.Uint16(addr); family { + case linux.AF_UNIX: + path := addr[2:] + if len(path) > linux.UnixPathMax { + return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument + } + // Drop the terminating NUL (if one exists) and everything after + // it for filesystem (non-abstract) addresses. + if len(path) > 0 && path[0] != 0 { + if n := bytes.IndexByte(path[1:], 0); n >= 0 { + path = path[:n+1] + } + } + return tcpip.FullAddress{ + Addr: tcpip.Address(path), + }, family, nil + + case linux.AF_INET: + var a linux.SockAddrInet + if len(addr) < sockAddrInetSize { + return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument + } + binary.Unmarshal(addr[:sockAddrInetSize], usermem.ByteOrder, &a) + + out := tcpip.FullAddress{ + Addr: BytesToIPAddress(a.Addr[:]), + Port: Ntohs(a.Port), + } + return out, family, nil + + case linux.AF_INET6: + var a linux.SockAddrInet6 + if len(addr) < sockAddrInet6Size { + return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument + } + binary.Unmarshal(addr[:sockAddrInet6Size], usermem.ByteOrder, &a) + + out := tcpip.FullAddress{ + Addr: BytesToIPAddress(a.Addr[:]), + Port: Ntohs(a.Port), + } + if isLinkLocal(out.Addr) { + out.NIC = tcpip.NICID(a.Scope_id) + } + return out, family, nil + + case linux.AF_PACKET: + var a linux.SockAddrLink + if len(addr) < sockAddrLinkSize { + return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument + } + binary.Unmarshal(addr[:sockAddrLinkSize], usermem.ByteOrder, &a) + if a.Family != linux.AF_PACKET || a.HardwareAddrLen != header.EthernetAddressSize { + return tcpip.FullAddress{}, family, syserr.ErrInvalidArgument + } + + // TODO(gvisor.dev/issue/173): Return protocol too. + return tcpip.FullAddress{ + NIC: tcpip.NICID(a.InterfaceIndex), + Addr: tcpip.Address(a.HardwareAddr[:header.EthernetAddressSize]), + }, family, nil + + case linux.AF_UNSPEC: + return tcpip.FullAddress{}, family, nil + + default: + return tcpip.FullAddress{}, 0, syserr.ErrAddressFamilyNotSupported + } +} diff --git a/pkg/sentry/socket/unix/unix.go b/pkg/sentry/socket/unix/unix.go index b32bb7ba8..c59297c80 100644 --- a/pkg/sentry/socket/unix/unix.go +++ b/pkg/sentry/socket/unix/unix.go @@ -136,7 +136,7 @@ func (s *socketOpsCommon) Endpoint() transport.Endpoint { // extractPath extracts and validates the address. func extractPath(sockaddr []byte) (string, *syserr.Error) { - addr, family, err := netstack.AddressAndFamily(sockaddr) + addr, family, err := socket.AddressAndFamily(sockaddr) if err != nil { if err == syserr.ErrAddressFamilyNotSupported { err = syserr.ErrInvalidArgument @@ -169,7 +169,7 @@ func (s *socketOpsCommon) GetPeerName(t *kernel.Task) (linux.SockAddr, uint32, * return nil, 0, syserr.TranslateNetstackError(err) } - a, l := netstack.ConvertAddress(linux.AF_UNIX, addr) + a, l := socket.ConvertAddress(linux.AF_UNIX, addr) return a, l, nil } @@ -181,7 +181,7 @@ func (s *socketOpsCommon) GetSockName(t *kernel.Task) (linux.SockAddr, uint32, * return nil, 0, syserr.TranslateNetstackError(err) } - a, l := netstack.ConvertAddress(linux.AF_UNIX, addr) + a, l := socket.ConvertAddress(linux.AF_UNIX, addr) return a, l, nil } @@ -255,7 +255,7 @@ func (s *SocketOperations) Accept(t *kernel.Task, peerRequested bool, flags int, var addr linux.SockAddr var addrLen uint32 if peerAddr != nil { - addr, addrLen = netstack.ConvertAddress(linux.AF_UNIX, *peerAddr) + addr, addrLen = socket.ConvertAddress(linux.AF_UNIX, *peerAddr) } fd, e := t.NewFDFrom(0, ns, kernel.FDFlags{ @@ -647,7 +647,7 @@ func (s *socketOpsCommon) RecvMsg(t *kernel.Task, dst usermem.IOSequence, flags var from linux.SockAddr var fromLen uint32 if r.From != nil && len([]byte(r.From.Addr)) != 0 { - from, fromLen = netstack.ConvertAddress(linux.AF_UNIX, *r.From) + from, fromLen = socket.ConvertAddress(linux.AF_UNIX, *r.From) } if r.ControlTrunc { @@ -682,7 +682,7 @@ func (s *socketOpsCommon) RecvMsg(t *kernel.Task, dst usermem.IOSequence, flags var from linux.SockAddr var fromLen uint32 if r.From != nil { - from, fromLen = netstack.ConvertAddress(linux.AF_UNIX, *r.From) + from, fromLen = socket.ConvertAddress(linux.AF_UNIX, *r.From) } if r.ControlTrunc { diff --git a/pkg/sentry/socket/unix/unix_vfs2.go b/pkg/sentry/socket/unix/unix_vfs2.go index eaf0b0d26..27f705bb2 100644 --- a/pkg/sentry/socket/unix/unix_vfs2.go +++ b/pkg/sentry/socket/unix/unix_vfs2.go @@ -172,7 +172,7 @@ func (s *SocketVFS2) Accept(t *kernel.Task, peerRequested bool, flags int, block var addr linux.SockAddr var addrLen uint32 if peerAddr != nil { - addr, addrLen = netstack.ConvertAddress(linux.AF_UNIX, *peerAddr) + addr, addrLen = socket.ConvertAddress(linux.AF_UNIX, *peerAddr) } fd, e := t.NewFDFromVFS2(0, ns, kernel.FDFlags{ diff --git a/pkg/sentry/strace/BUILD b/pkg/sentry/strace/BUILD index a920180d3..d36a64ffc 100644 --- a/pkg/sentry/strace/BUILD +++ b/pkg/sentry/strace/BUILD @@ -32,8 +32,8 @@ go_library( "//pkg/seccomp", "//pkg/sentry/arch", "//pkg/sentry/kernel", + "//pkg/sentry/socket", "//pkg/sentry/socket/netlink", - "//pkg/sentry/socket/netstack", "//pkg/sentry/syscalls/linux", "//pkg/usermem", ], diff --git a/pkg/sentry/strace/socket.go b/pkg/sentry/strace/socket.go index cc5f70cd4..d943a7cb1 100644 --- a/pkg/sentry/strace/socket.go +++ b/pkg/sentry/strace/socket.go @@ -23,8 +23,8 @@ import ( "gvisor.dev/gvisor/pkg/binary" "gvisor.dev/gvisor/pkg/marshal/primitive" "gvisor.dev/gvisor/pkg/sentry/kernel" + "gvisor.dev/gvisor/pkg/sentry/socket" "gvisor.dev/gvisor/pkg/sentry/socket/netlink" - "gvisor.dev/gvisor/pkg/sentry/socket/netstack" slinux "gvisor.dev/gvisor/pkg/sentry/syscalls/linux" "gvisor.dev/gvisor/pkg/usermem" ) @@ -341,7 +341,7 @@ func sockAddr(t *kernel.Task, addr usermem.Addr, length uint32) string { switch family { case linux.AF_INET, linux.AF_INET6, linux.AF_UNIX: - fa, _, err := netstack.AddressAndFamily(b) + fa, _, err := socket.AddressAndFamily(b) if err != nil { return fmt.Sprintf("%#x {Family: %s, error extracting address: %v}", addr, familyStr, err) } |