Notify frotend of Speak version packets

ethermess-backend.c

@@ -646,6 +646,29 @@ bool check_utf8(const unsigned char *data, size_t data_length, bool newline_tab_
 	return true;
 }
 
+void handle_speak_version(const unsigned char source_mac[6], const unsigned char *data, size_t data_length) {
+	if (data_length < 1) {
+		// Too short
+		return;
+	}
+
+	unsigned char version = data[0];
+
+	if (!check_padding(data, 1, data_length)) {
+		// Malformed padding
+		return;
+	}
+
+	// Type of event: Speak version
+	writeallx(1, "v", 1);
+
+	// MAC
+	writeallx(1, source_mac, 6);
+
+	// Version
+	writeallx(1, &version, 1);
+}
+
 void handle_status(const unsigned char source_mac[6], const unsigned char *data, size_t data_length) {
 	if (data_length < 2) {
 		// Too short
@@ -885,6 +908,10 @@ void process_frame(void) {
 	// Process the packet based on the version and packet type
 	if (version == 0) {
 		switch (packet_type) {
+			case EMT_SPEAK_VERSION:
+				handle_speak_version(source_mac, &frame[16], packet_length - 16);
+				break;
+
 			case EMT_STATUS_REQUEST:
 				if (check_padding(&frame[16], 0, packet_length - 16)) {
 					send_status(source_mac);

ethermess.py

@@ -435,7 +435,14 @@ def eventloop(proc):
 		for fd, event in poll.poll(wait):
 			if fd == proc.stdout.fileno() and event & select.POLLIN:
 				event_type = readall(proc.stdout, 1)
-				if event_type == b's':
+				if event_type == b'v':
+					# Speak version
+					source_mac = readall(proc.stdout, 6)
+					version, = readall(proc.stdout, 1)
+
+					print('--- Speak version %s %i' % (format_mac(source_mac), version)) #debg
+
+				elif event_type == b's':
 					# Status
 					source_mac = readall(proc.stdout, 6)
 					status, = readall(proc.stdout, 1)

frontend-backend-protocol.md

@@ -70,6 +70,12 @@ Events
 
 Frontend receives events from the backend.
 
+### Speak version
+Format: 'v' + MAC + version (u8)
+
+Generated when an EtherMess Speak version packet is received by the
+backend.
+
 ### Status
 Format: 's' + MAC + status + nick length in bytes (u8) + nick