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opensmtpd
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tags/v52
maze 1 year ago
parent
a116f8c755
commit
400b30e58c
3 changed files with 43 additions and 58 deletions
Split View Show Diff Stats
  1. 4
    4
      filter.go
  2. 32
    32
      imsg.go
  3. 7
    22
      table.go

+ 4
- 4
filter.go View File

@@ -178,7 +178,7 @@ type Filter struct {
Version uint32

c net.Conn
m *Message
m *message

hooks int
flags int
@@ -190,7 +190,7 @@ type Filter struct {
func (f *Filter) Register() error {
var err error
if f.m == nil {
f.m = new(Message)
f.m = new(message)
}
if f.c == nil {
if f.c, err = newConn(0); err != nil {
@@ -274,7 +274,7 @@ func (f *Filter) Serve() error {
}

if f.m == nil {
f.m = new(Message)
f.m = new(message)
}
if f.session == nil {
if f.session, err = lru.New(1024); err != nil {
@@ -488,7 +488,7 @@ func (f *Filter) respond(s *Session, status, code int, line string) error {
return nil
}

m := new(Message)
m := new(message)
m.Header.Type = typeFilterResponse
m.PutTypeID(s.qid)
m.PutTypeInt(s.qtype)

+ 32
- 32
imsg.go View File

@@ -20,8 +20,8 @@ const (
maxDomainPartSize = (255 + 1)
)

// MessageHeader is the header of an imsg frame (struct imsg_hdr)
type MessageHeader struct {
// messageHeader is the header of an imsg frame (struct imsg_hdr)
type messageHeader struct {
Type uint32
Len uint16
Flags uint16
@@ -30,10 +30,10 @@ type MessageHeader struct {
}

// message implements OpenBSD imsg
type Message struct {
Header MessageHeader
type message struct {
Header messageHeader

// Data is the Message payload.
// Data is the message payload.
Data []byte

// rpos is the read position in the current Data
@@ -43,7 +43,7 @@ type Message struct {
buf []byte
}

func (m *Message) reset() {
func (m *message) reset() {
m.Header.Type = 0
m.Header.Len = 0
m.Header.Flags = 0
@@ -56,7 +56,7 @@ func (m *Message) reset() {

// ReadFrom reads a message from the specified net.Conn, parses the header and
// reads the data payload.
func (m *Message) ReadFrom(r io.Reader) error {
func (m *message) ReadFrom(r io.Reader) error {
m.reset()

head := make([]byte, imsgHeaderSize)
@@ -81,7 +81,7 @@ func (m *Message) ReadFrom(r io.Reader) error {
}

// WriteTo marshals the message to wire format and sends it to the net.Conn
func (m *Message) WriteTo(w io.Writer) error {
func (m *message) WriteTo(w io.Writer) error {
m.Header.Len = uint16(len(m.Data)) + imsgHeaderSize

buf := new(bytes.Buffer)
@@ -96,7 +96,7 @@ func (m *Message) WriteTo(w io.Writer) error {
return err
}

func (m *Message) GetInt() (int, error) {
func (m *message) GetInt() (int, error) {
if m.rpos+4 > len(m.Data) {
return 0, io.ErrShortBuffer
}
@@ -105,7 +105,7 @@ func (m *Message) GetInt() (int, error) {
return int(i), nil
}

func (m *Message) GetUint32() (uint32, error) {
func (m *message) GetUint32() (uint32, error) {
if m.rpos+4 > len(m.Data) {
return 0, io.ErrShortBuffer
}
@@ -114,7 +114,7 @@ func (m *Message) GetUint32() (uint32, error) {
return u, nil
}

func (m *Message) GetSize() (uint64, error) {
func (m *message) GetSize() (uint64, error) {
if m.rpos+8 > len(m.Data) {
return 0, io.ErrShortBuffer
}
@@ -123,7 +123,7 @@ func (m *Message) GetSize() (uint64, error) {
return u, nil
}

func (m *Message) GetString() (string, error) {
func (m *message) GetString() (string, error) {
o := bytes.IndexByte(m.Data[m.rpos:], 0)
if o < 0 {
return "", errors.New("imsg: string not NULL-terminated")
@@ -134,7 +134,7 @@ func (m *Message) GetString() (string, error) {
return s, nil
}

func (m *Message) GetID() (uint64, error) {
func (m *message) GetID() (uint64, error) {
if m.rpos+8 > len(m.Data) {
return 0, io.ErrShortBuffer
}
@@ -176,7 +176,7 @@ func (sa Sockaddr) String() string {
return fmt.Sprintf("%s:%d", sa.IP(), sa.Port())
}

func (m *Message) GetSockaddr() (net.Addr, error) {
func (m *message) GetSockaddr() (net.Addr, error) {
s, err := m.GetSize()
if err != nil {
return nil, err
@@ -192,7 +192,7 @@ func (m *Message) GetSockaddr() (net.Addr, error) {
return a, nil
}

func (m *Message) GetMailaddr() (user, domain string, err error) {
func (m *message) GetMailaddr() (user, domain string, err error) {
var buf [maxLocalPartSize + maxDomainPartSize]byte
if maxLocalPartSize+maxDomainPartSize > len(m.Data[m.rpos:]) {
return "", "", io.ErrShortBuffer
@@ -204,7 +204,7 @@ func (m *Message) GetMailaddr() (user, domain string, err error) {
return
}

func (m *Message) GetType(t uint8) error {
func (m *message) GetType(t uint8) error {
if m.rpos >= len(m.Data) {
return io.ErrShortBuffer
}
@@ -217,102 +217,102 @@ func (m *Message) GetType(t uint8) error {
return nil
}

func (m *Message) GetTypeInt() (int, error) {
func (m *message) GetTypeInt() (int, error) {
if err := m.GetType(mINT); err != nil {
return 0, err
}
return m.GetInt()
}

func (m *Message) GetTypeUint32() (uint32, error) {
func (m *message) GetTypeUint32() (uint32, error) {
if err := m.GetType(mUINT32); err != nil {
return 0, err
}
return m.GetUint32()
}

func (m *Message) GetTypeSize() (uint64, error) {
func (m *message) GetTypeSize() (uint64, error) {
if err := m.GetType(mSIZET); err != nil {
return 0, err
}
return m.GetSize()
}

func (m *Message) GetTypeString() (string, error) {
func (m *message) GetTypeString() (string, error) {
if err := m.GetType(mSTRING); err != nil {
return "", err
}
return m.GetString()
}

func (m *Message) GetTypeID() (uint64, error) {
func (m *message) GetTypeID() (uint64, error) {
if err := m.GetType(mID); err != nil {
return 0, err
}
return m.GetID()
}

func (m *Message) GetTypeSockaddr() (net.Addr, error) {
func (m *message) GetTypeSockaddr() (net.Addr, error) {
if err := m.GetType(mSOCKADDR); err != nil {
return nil, err
}
return m.GetSockaddr()
}

func (m *Message) GetTypeMailaddr() (user, domain string, err error) {
func (m *message) GetTypeMailaddr() (user, domain string, err error) {
if err = m.GetType(mMAILADDR); err != nil {
return
}
return m.GetMailaddr()
}

func (m *Message) PutInt(v int) {
func (m *message) PutInt(v int) {
var b [4]byte
binary.LittleEndian.PutUint32(b[:], uint32(v))
m.Data = append(m.Data, b[:]...)
m.Header.Len += 4
}

func (m *Message) PutUint32(v uint32) {
func (m *message) PutUint32(v uint32) {
var b [4]byte
binary.LittleEndian.PutUint32(b[:], v)
m.Data = append(m.Data, b[:]...)
m.Header.Len += 4
}

func (m *Message) PutString(s string) {
func (m *message) PutString(s string) {
m.Data = append(m.Data, append([]byte(s), 0)...)
m.Header.Len += uint16(len(s)) + 1
}

func (m *Message) PutID(id uint64) {
func (m *message) PutID(id uint64) {
var b [8]byte
binary.LittleEndian.PutUint64(b[:], id)
m.Data = append(m.Data, b[:]...)
m.Header.Len += 8
}

func (m *Message) PutType(t uint8) {
func (m *message) PutType(t uint8) {
m.Data = append(m.Data, t)
m.Header.Len += 1
}

func (m *Message) PutTypeInt(v int) {
func (m *message) PutTypeInt(v int) {
m.PutType(mINT)
m.PutInt(v)
}

func (m *Message) PutTypeUint32(v uint32) {
func (m *message) PutTypeUint32(v uint32) {
m.PutType(mUINT32)
m.PutUint32(v)
}

func (m *Message) PutTypeString(s string) {
func (m *message) PutTypeString(s string) {
m.PutType(mSTRING)
m.PutString(s)
}

func (m *Message) PutTypeID(id uint64) {
func (m *message) PutTypeID(id uint64) {
m.PutType(mID)
m.PutID(id)
}

+ 7
- 22
table.go View File

@@ -39,21 +39,6 @@ func procTableName(t uint32) string {
return fmt.Sprintf("UNKNOWN %d", t)
}

// Table services.
const (
TableAlias = 0x001 /* returns struct expand */
TableDomain = 0x002 /* returns struct destination */
TableCredentials = 0x004 /* returns struct credentials */
TableNetAddr = 0x008 /* returns struct netaddr */
TableUserInfo = 0x010 /* returns struct userinfo */
TableSource = 0x020 /* returns struct source */
TableMailAddr = 0x040 /* returns struct mailaddr */
TableAddrName = 0x080 /* returns struct addrname */
TableMailAddrMap = 0x100 /* returns struct maddrmap */
TableRelayHost = 0x200 /* returns struct relayhost */
TableString = 0x400
)

// Table implements the OpenSMTPD table API
type Table struct {
// Update callback
@@ -72,7 +57,7 @@ type Table struct {
Close func() error

c net.Conn
m *Message
m *message
closed bool
}

@@ -83,7 +68,7 @@ func (t *Table) Serve() error {
return err
}

t.m = new(Message)
t.m = new(message)

for !t.closed {
if err = t.m.ReadFrom(t.c); err != nil {
@@ -137,7 +122,7 @@ func (t *Table) dispatch() (err error) {

debugf("table: version=%d name=%q\n", version, name)

m := new(Message)
m := new(message)
m.Header.Type = procTableOK
m.Header.Len = imsgHeaderSize
m.Header.PID = uint32(os.Getpid())
@@ -154,7 +139,7 @@ func (t *Table) dispatch() (err error) {
}
}

m := new(Message)
m := new(message)
m.Header.Type = procTableOK
m.PutInt(r)
if err = m.WriteTo(t.c); err != nil {
@@ -199,7 +184,7 @@ func (t *Table) dispatch() (err error) {

log.Printf("table_check: result=%d\n", r)

m := new(Message)
m := new(message)
m.Header.Type = procTableOK
m.Header.PID = uint32(os.Getpid())
m.PutInt(r)
@@ -233,7 +218,7 @@ func (t *Table) dispatch() (err error) {
}
}

m := new(Message)
m := new(message)
m.Header.Type = procTableOK
m.Header.PID = uint32(os.Getpid())
if val == "" {
@@ -267,7 +252,7 @@ func (t *Table) dispatch() (err error) {
}
}

m := new(Message)
m := new(message)
m.Header.Type = procTableOK
m.Header.PID = uint32(os.Getpid())
if val == "" {

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