fermentord/vendor/github.com/JuulLabs-OSS/ble/linux/hci/smp.go
Søren Rasmussen 07a23c1845
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Upgrade to go 1.20 and add vendor catalog
2023-04-22 10:37:23 +02:00

67 lines
2.1 KiB
Go

package hci
import (
"bytes"
"encoding/binary"
"fmt"
)
const (
pairingRequest = 0x01 // Pairing Request LE-U, ACL-U
pairingResponse = 0x02 // Pairing Response LE-U, ACL-U
pairingConfirm = 0x03 // Pairing Confirm LE-U
pairingRandom = 0x04 // Pairing Random LE-U
pairingFailed = 0x05 // Pairing Failed LE-U, ACL-U
encryptionInformation = 0x06 // Encryption Information LE-U
masterIdentification = 0x07 // Master Identification LE-U
identiInformation = 0x08 // Identity Information LE-U, ACL-U
identityAddreInformation = 0x09 // Identity Address Information LE-U, ACL-U
signingInformation = 0x0A // Signing Information LE-U, ACL-U
securityRequest = 0x0B // Security Request LE-U
pairingPublicKey = 0x0C // Pairing Public Key LE-U
pairingDHKeyCheck = 0x0D // Pairing DHKey Check LE-U
pairingKeypress = 0x0E // Pairing Keypress Notification LE-U
)
func (c *Conn) sendSMP(p pdu) error {
buf := bytes.NewBuffer(make([]byte, 0))
if err := binary.Write(buf, binary.LittleEndian, uint16(4+len(p))); err != nil {
return err
}
if err := binary.Write(buf, binary.LittleEndian, cidSMP); err != nil {
return err
}
if err := binary.Write(buf, binary.LittleEndian, p); err != nil {
return err
}
_, err := c.writePDU(buf.Bytes())
logger.Debug("smp", "send", fmt.Sprintf("[%X]", buf.Bytes()))
return err
}
func (c *Conn) handleSMP(p pdu) error {
logger.Debug("smp", "recv", fmt.Sprintf("[%X]", p))
code := p[0]
switch code {
case pairingRequest:
case pairingResponse:
case pairingConfirm:
case pairingRandom:
case pairingFailed:
case encryptionInformation:
case masterIdentification:
case identiInformation:
case identityAddreInformation:
case signingInformation:
case securityRequest:
case pairingPublicKey:
case pairingDHKeyCheck:
case pairingKeypress:
default:
// If a packet is received with a reserved Code it shall be ignored. [Vol 3, Part H, 3.3]
return nil
}
// FIXME: work aound to the lack of SMP implementation - always return non-supported.
// C.5.1 Pairing Not Supported by Slave
return c.sendSMP([]byte{pairingFailed, 0x05})
}