LDN services: Difference between revisions
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| 0x21 || 0x1 || Encryption type: 1 = plaintext, 2 = AES-128-CTR, 3 = AES-128-GCM, {frames with other values are ignored by [[#Scan]]/[[#ScanPrivate]]}. Must match the type which is currently being used: with [[#Scan]]/[[#ScanPrivate]] this is determined via this field, otherwise [[#SecurityConfig]] is used to determine this. | | 0x21 || 0x1 || Encryption type: 1 = plaintext, 2 = AES-128-CTR, 3 = AES-128-GCM, {frames with other values are ignored by [[#Scan]]/[[#ScanPrivate]]}. Must match the type which is currently being used: with [[#Scan]]/[[#ScanPrivate]] this is determined via this field, otherwise [[#SecurityConfig]] is used to determine this. | ||
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| 0x22 || 0x2 || Big-endian u16 size for the data starting at +0x48 (+0x38 with EncryptionType3), must be <=0x500, and must match {total frame size relative to +0x0 above} | | 0x22 || 0x2 || Big-endian u16 size for the data starting at +0x48 (+0x38 with EncryptionType3), must be <=0x500, and must match {total frame size relative to +0x0 above} - {header_size}. | ||
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| 0x24 || 0x4 || Big-endian u32 Counter. The initial value is randomly-generated. This is incremented each time the below content is updated (including initial creation). Also used by the Station to determine whether the frame changed compared to a previous one. When comparing against a previous frame, new_counter-prev_counter must be <= 0xFF, and the counters must not match. | | 0x24 || 0x4 || Big-endian u32 Counter. The initial value is randomly-generated. This is incremented each time the below content is updated (including initial creation). Also used by the Station to determine whether the frame changed compared to a previous one. When comparing against a previous frame, new_counter-prev_counter must be <= 0xFF, and the counters must not match. | ||