Networks/Reticulum-Go
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0.3.5

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This commit is contained in:
Sudo-Ivan
2025-01-01 18:31:58 -06:00
parent 0862830431
commit 5acbef454f
6 changed files with 425 additions and 318 deletions
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93
pkg/destination/destination.go
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@@ -31,6 +31,15 @@ const (
RATCHET_COUNT = 512 // Default number of retained ratchet keys
RATCHET_INTERVAL = 1800 // Minimum interval between ratchet rotations in seconds
// Debug levels
DEBUG_CRITICAL = 1 // Critical errors
DEBUG_ERROR = 2 // Non-critical errors
DEBUG_INFO = 3 // Important information
DEBUG_VERBOSE = 4 // Detailed information
DEBUG_TRACE = 5 // Very detailed tracing
DEBUG_PACKETS = 6 // Packet-level details
DEBUG_ALL = 7 // Everything
)
type PacketCallback = common.PacketCallback
@@ -69,15 +78,17 @@ type Destination struct {
mutex sync.RWMutex
requestHandlers map[string]*RequestHandler
callbacks struct {
packetReceived common.PacketCallback
proofRequested common.ProofRequestedCallback
linkEstablished common.LinkEstablishedCallback
}
}
func debugLog(level int, format string, v ...interface{}) {
log.Printf("[DEBUG-%d] %s", level, fmt.Sprintf(format, v...))
}
func New(id *identity.Identity, direction byte, destType byte, appName string, aspects ...string) (*Destination, error) {
debugLog(DEBUG_INFO, "Creating new destination: app=%s type=%d direction=%d", appName, destType, direction)
if id == nil {
debugLog(DEBUG_ERROR, "Cannot create destination: identity is nil")
return nil, errors.New("identity cannot be nil")
}
@@ -96,18 +107,27 @@ func New(id *identity.Identity, direction byte, destType byte, appName string, a
// Generate destination hash
d.hashValue = d.calculateHash()
debugLog(DEBUG_VERBOSE, "Created destination with hash: %x", d.hashValue)
return d, nil
}
func (d *Destination) calculateHash() []byte {
debugLog(DEBUG_TRACE, "Calculating hash for destination %s", d.ExpandName())
nameHash := sha256.Sum256([]byte(d.ExpandName()))
identityHash := sha256.Sum256(d.identity.GetPublicKey())
debugLog(DEBUG_ALL, "Name hash: %x", nameHash)
debugLog(DEBUG_ALL, "Identity hash: %x", identityHash)
combined := append(nameHash[:], identityHash[:]...)
finalHash := sha256.Sum256(combined)
return finalHash[:16] // Truncated to 128 bits
truncated := finalHash[:16]
debugLog(DEBUG_VERBOSE, "Calculated destination hash: %x", truncated)
return truncated
}
func (d *Destination) ExpandName() string {
@@ -131,52 +151,31 @@ func (d *Destination) Announce(appData []byte) error {
}
// Create announce packet
packet := make([]byte, 0)
packet := make([]byte, 0, 256) // Pre-allocate reasonable size
// Add destination hash
// Add packet type and header
packet = append(packet, 0x01) // PACKET_TYPE_ANNOUNCE
packet = append(packet, 0x00) // Initial hop count
// Add destination hash (16 bytes)
packet = append(packet, d.hashValue...)
log.Printf("[DEBUG-4] Added destination hash %x to announce", d.hashValue[:8])
// Add identity public key
// Add identity public key (32 bytes)
pubKey := d.identity.GetPublicKey()
packet = append(packet, pubKey...)
log.Printf("[DEBUG-4] Added public key %x to announce", pubKey[:8])
// Add flags byte
flags := byte(0)
if d.acceptsLinks {
flags |= 0x01
}
if d.ratchetsEnabled {
flags |= 0x02
}
packet = append(packet, flags)
log.Printf("[DEBUG-4] Added flags byte 0x%02x to announce", flags)
// Add proof strategy
packet = append(packet, d.proofStrategy)
log.Printf("[DEBUG-4] Added proof strategy 0x%02x to announce", d.proofStrategy)
// Add app data
if appData != nil {
appDataLen := uint16(len(appData))
lenBytes := make([]byte, 2)
binary.BigEndian.PutUint16(lenBytes, appDataLen)
packet = append(packet, lenBytes...)
packet = append(packet, appData...)
log.Printf("[DEBUG-4] Added %d bytes of app data to announce", appDataLen)
} else {
packet = append(packet, 0x00, 0x00)
log.Printf("[DEBUG-4] Added empty app data to announce")
}
// Add app data with length prefix
appDataLen := make([]byte, 2)
binary.BigEndian.PutUint16(appDataLen, uint16(len(appData)))
packet = append(packet, appDataLen...)
packet = append(packet, appData...)
log.Printf("[DEBUG-4] Added %d bytes of app data to announce", len(appData))
// Add ratchet data if enabled
if d.ratchetsEnabled {
log.Printf("[DEBUG-4] Adding ratchet data to announce")
intervalBytes := make([]byte, 4)
binary.BigEndian.PutUint32(intervalBytes, uint32(d.ratchetInterval))
packet = append(packet, intervalBytes...)
ratchetKey := d.identity.GetCurrentRatchetKey()
if ratchetKey == nil {
log.Printf("[DEBUG-3] Failed to get current ratchet key")
@@ -186,16 +185,16 @@ func (d *Destination) Announce(appData []byte) error {
log.Printf("[DEBUG-4] Added ratchet key %x to announce", ratchetKey[:8])
}
// Sign the announce packet
signature, err := d.Sign(packet)
if err != nil {
log.Printf("[DEBUG-3] Failed to sign announce packet: %v", err)
return fmt.Errorf("failed to sign announce packet: %w", err)
// Sign the announce packet (64 bytes)
signData := append(d.hashValue, appData...)
if d.ratchetsEnabled {
signData = append(signData, d.identity.GetCurrentRatchetKey()...)
}
signature := d.identity.Sign(signData)
packet = append(packet, signature...)
log.Printf("[DEBUG-4] Added signature to announce packet (total size: %d bytes)", len(packet))
// Send announce packet
// Send announce packet through transport
log.Printf("[DEBUG-4] Sending announce packet through transport layer")
return transport.SendAnnounce(packet)
}
@@ -288,7 +287,7 @@ func (d *Destination) RegisterRequestHandler(path string, responseGen func(strin
return errors.New("invalid allow mode")
}
if allow == ALLOW_LIST && (allowedList == nil || len(allowedList) == 0) {
if allow == ALLOW_LIST && len(allowedList) == 0 {
return errors.New("allowed list required for ALLOW_LIST mode")
}