func explore(cln ble.Client, p *ble.Profile) error {
for _, s := range p.Services {
fmt.Printf(" Service: %s %s, Handle (0x%02X)\n", s.UUID, ble.Name(s.UUID), s.Handle)
for _, c := range s.Characteristics {
fmt.Printf(" Characteristic: %s %s, Property: 0x%02X (%s), Handle(0x%02X), VHandle(0x%02X)\n",
c.UUID, ble.Name(c.UUID), c.Property, propString(c.Property), c.Handle, c.ValueHandle)
if (c.Property & ble.CharRead) != 0 {
b, err := cln.ReadCharacteristic(c)
if err != nil {
fmt.Printf("Failed to read characteristic: %s\n", err)
continue
}
fmt.Printf(" Value %x | %q\n", b, b)
}
for _, d := range c.Descriptors {
fmt.Printf(" Descriptor: %s %s, Handle(0x%02x)\n", d.UUID, ble.Name(d.UUID), d.Handle)
b, err := cln.ReadDescriptor(d)
if err != nil {
fmt.Printf("Failed to read descriptor: %s\n", err)
continue
}
fmt.Printf(" Value %x | %q\n", b, b)
}
}
fmt.Printf("\n")
}
return nil
}
func cmdConnect(c *cli.Context) error {
curr.client = nil
var cln ble.Client
var err error
ctx := ble.WithSigHandler(context.WithTimeout(context.Background(), c.Duration("tmo")))
if c.String("addr") != "" {
curr.addr = ble.NewAddr(c.String("addr"))
fmt.Printf("Dialing to specified address: %s\n", curr.addr)
cln, err = ble.Dial(ctx, curr.addr)
} else if filter(c) != nil {
fmt.Printf("Scanning with filter...\n")
if cln, err = ble.Connect(ctx, filter(c)); err == nil {
curr.addr = cln.Address()
fmt.Printf("Connected to %s\n", curr.addr)
}
} else if curr.addr != nil {
fmt.Printf("Dialing to implicit address: %s\n", curr.addr)
cln, err = ble.Dial(ctx, curr.addr)
} else {
return fmt.Errorf("no filter specified, and cached peripheral address")
}
if err == nil {
curr.client = cln
curr.clients[cln.Address().String()] = cln
}
go func() {
<-cln.Disconnected()
delete(curr.clients, cln.Address().String())
curr.client = nil
fmt.Printf("\n%s disconnected\n", cln.Address().String())
}()
return err
}
func explore(cln ble.Client, p *ble.Profile) error {
for _, s := range p.Services {
fmt.Printf(" Service: %s %s, Handle (0x%02X)\n", s.UUID, ble.Name(s.UUID), s.Handle)
for _, c := range s.Characteristics {
fmt.Printf(" Characteristic: %s %s, Property: 0x%02X (%s), Handle(0x%02X), VHandle(0x%02X)\n",
c.UUID, ble.Name(c.UUID), c.Property, propString(c.Property), c.Handle, c.ValueHandle)
if (c.Property & ble.CharRead) != 0 {
b, err := cln.ReadCharacteristic(c)
if err != nil {
fmt.Printf("Failed to read characteristic: %s\n", err)
continue
}
fmt.Printf(" Value %x | %q\n", b, b)
}
for _, d := range c.Descriptors {
fmt.Printf(" Descriptor: %s %s, Handle(0x%02x)\n", d.UUID, ble.Name(d.UUID), d.Handle)
b, err := cln.ReadDescriptor(d)
if err != nil {
fmt.Printf("Failed to read descriptor: %s\n", err)
continue
}
fmt.Printf(" Value %x | %q\n", b, b)
}
if *sub != 0 {
// Don't bother to subscribe the Service Changed characteristics.
if c.UUID.Equal(ble.ServiceChangedUUID) {
continue
}
// Don't touch the Apple-specific Service/Characteristic.
// Service: D0611E78BBB44591A5F8487910AE4366
// Characteristic: 8667556C9A374C9184ED54EE27D90049, Property: 0x18 (WN),
// Descriptor: 2902, Client Characteristic Configuration
// Value 0000 | "\x00\x00"
if c.UUID.Equal(ble.MustParse("8667556C9A374C9184ED54EE27D90049")) {
continue
}
if (c.Property & ble.CharNotify) != 0 {
fmt.Printf("\n-- Subscribe to notification for %s --\n", *sub)
h := func(req []byte) { fmt.Printf("Notified: %q [ % X ]\n", string(req), req) }
if err := cln.Subscribe(c, false, h); err != nil {
log.Fatalf("subscribe failed: %s", err)
}
time.Sleep(*sub)
if err := cln.Unsubscribe(c, false); err != nil {
log.Fatalf("unsubscribe failed: %s", err)
}
fmt.Printf("-- Unsubscribe to notification --\n")
}
if (c.Property & ble.CharIndicate) != 0 {
fmt.Printf("\n-- Subscribe to indication of %s --\n", *sub)
h := func(req []byte) { fmt.Printf("Indicated: %q [ % X ]\n", string(req), req) }
if err := cln.Subscribe(c, true, h); err != nil {
log.Fatalf("subscribe failed: %s", err)
}
time.Sleep(*sub)
if err := cln.Unsubscribe(c, true); err != nil {
log.Fatalf("unsubscribe failed: %s", err)
}
fmt.Printf("-- Unsubscribe to indication --\n")
}
}
}
fmt.Printf("\n")
}
return nil
}