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feat: Configure default public channel with well-known secret and enhance channel message handling

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Janez T
2025-10-18 23:29:47 +02:00
parent 5315e58247
commit 596ae6c5a0
6 changed files with 97 additions and 5 deletions
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13
lib/services/protocol/frame_builder.dart
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@@ -252,11 +252,19 @@ class FrameBuilder {
return writer.toBytes();
}
/// Build SetChannel command - sets the name for a specific channel
/// Build SetChannel command - sets the name and secret for a specific channel
///
/// Format: [cmd(1)][channel_idx(1)][name(32)][secret(16)]
/// Secret must be exactly 16 bytes (128-bit key)
static Uint8List buildSetChannel({
required int channelIdx,
required String channelName,
required List<int> secret,
}) {
if (secret.length != 16) {
throw ArgumentError('Channel secret must be exactly 16 bytes (got ${secret.length})');
}
final writer = BufferWriter();
writer.writeByte(MeshCoreConstants.cmdSetChannel); // 0x20 (32)
writer.writeByte(channelIdx); // 0-39 typically
@@ -268,6 +276,9 @@ class FrameBuilder {
nameBytes.setRange(0, copyLen, encoded);
writer.writeBytes(nameBytes);
// Write 16-byte secret
writer.writeBytes(Uint8List.fromList(secret));
return writer.toBytes();
}
}