feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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# e:net 协议当前还原状态（截至 2026-09-11，全面逆向后）
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本文档汇总基于抓包与当前程序实现的协议还原状态。
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**2026-09-11 全面逆向结论：DMX 帧与 RDM 请求帧已 100% 字段破解，可零模板纯自构造。**
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---
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## 一、UDP/31772 通用信封（全部帧）
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| 偏移 | 含义 |
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| 0x00-0x03 | `"ENet"` magic |
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| 0x04-0x07 | 帧类型 u32 LE（1=发现, 2=注册/宣告, 4=数据/RDM） |
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| 0x08-0x09 | 00 00（常量） |
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| 0x0A-0x0B | 目标端口 u16 LE = 31772 (0x7c1c) |
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| 0x0C-0x11 | 全 0 |
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| 0x12-0x13 | 01 00（常量） |
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| 0x14-0x15 | 帧总长 u16 LE（如 1084=0x043c, 47=0x002f, 42=0x002a） |
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| 0x16-0x17 | 00 00 |
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| 0x18-0x19 | 子类型 u16 LE（01=主机→Butler 数据, 02=Butler→主机应答/注册回执） |
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---
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## 二、DMX 数据帧（1084B，主机→Butler，全破解）
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| 偏移 | 含义 | 备注 |
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|---|---|---|
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| 0x00-0x19 | 通用信封 | type=4, 子类型=01 |
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| 0x1A-0x1D | 帧计数器 u32 LE | **每帧 +1，任意起始值**（1031 帧实证）；与 r1/r2 无关 |
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| 0x1E-0x1F | 00 00 | 常量 |
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| 0x20-0x21 | 01 01 | 端口使能 mask（port1+port2） |
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| 0x22-0x25 | r1 u32 LE | 随机数，port1 加密种子 |
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| 0x26-0x29 | r2 u32 LE | 随机数，port2 加密种子 |
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| 0x2A-0x2D | 00 00 00 00 | 常量 |
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2026-09-11 13:53:21 +08:00
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| 0x2E-0x2F | 01 00 | 输出口对序号（SL 抓包=01；实测 01/02 均被接受） |
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> ⚠ **两个 DMX 口数据区独立**：port1 @0x3C、port2 @0x23C。灯具接在哪个口就吃哪个口的数据。
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> 实测灯具在 port2 时只发 port1 会导致灯具保持旧值/兜底白色——**show 模式已改为双口同时输出**。
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feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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| 0x30-0x31 | 00 00 | 常量 |
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| 0x32-0x33 | 01 00 | 常量 |
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| 0x34-0x35 | 00 02 | port1 数据长度 = 512（u16 LE） |
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| 0x36-0x37 | 00 02 | port2 数据长度 = 512（u16 LE） |
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| 0x38-0x3B | 01 00 00 00 | 常量 |
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| 0x3C-0x23B | port1 密文 512B | `agios_dmx_encrypt(p1, r1, B12)` |
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| 0x23C-0x43B | port2 密文 512B | `agios_dmx_encrypt(p2, r2, B12)` |
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**加密**：`rot=(B12^r)&511; out[i]=src[(i+rot)%512]^cnt[i]`（zPprv0TXRRW 序列）
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---
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## 三、RDM 请求帧（1084B，主机→Butler，全破解）
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| 偏移 | 含义 | 备注 |
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|---|---|---|
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| 0x00-0x19 | 通用信封 | type=4, 子类型=01 |
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| 0x1A-0x1F | **全 0** | RDM 帧计数器恒 0（424 帧实证） |
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| 0x20 | **02** | RDM 请求标志（DMX 帧为 01） |
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| 0x21 | 00 | 常量 |
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| 0x22-0x23 | qseq u16 LE | 查询序号，逐请求 +1 |
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| 0x24-0x29 | 全 0 | DMX 帧的 r1/r2 槽位，RDM 清零 |
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| 0x2A | **CC** | 常量（隐式 RDM StartCode 的外显位置） |
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| 0x2B-0x2D | 00 00 00 | 常量 |
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| 0x2E-0x2F | 01 00 | 常量 |
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| 0x30 | 00 / 01 | 成对发送标志：主帧=00，紧跟的副本=01 |
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| 0x31-0x33 | 00 00 00 | 常量 |
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| 0x34-0x37 | msgLen+1 u32 LE | 如 PDL=0 时 = 25 (0x19) |
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| 0x38-0x3B | 01 00 00 00 | 常量 |
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| 0x3C | 01 | RDM SubStartCode |
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| 0x3D | msgLen | = 24+PDL（含隐式 0xCC 起始码，不含 checksum） |
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| 0x3E-0x43 | 目标 UID | 广播=ff×6 |
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| 0x44-0x49 | 源 UID | 主机=45 3a 7f ff ff ff（副本末字节 -1） |
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| 0x4A | TN | 事务号 |
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| 0x4B | port | 主帧=00，副本=01 |
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| 0x4C | msgCount | 00 |
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| 0x4D-0x4E | subDevice | 00 00 |
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| 0x4F | CC | 命令类（0x10=Discovery, 0x20=GET, 0x30=SET） |
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| 0x50-0x51 | PID | BE（0001=UNIQUE_BRANCH, 0002=MUTE, 0003=UN_MUTE, 0060=DEVICE_INFO, 00F0=DMX_START_ADDRESS…） |
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| 0x52 | PDL | PD 长度 |
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| 0x53.. | PD | 参数数据 |
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| 0x53+PDL | checksum u16 BE | `0xCC + Σ(0x3C .. 0x53+PDL)` |
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| checksum 之后 | 任意填充 | Butler 不读（实测垃圾/零均可） |
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**成对副本规则**（SL 实测）：主帧之后紧跟一副本，差异仅 0x30=01、0x4B=01、srcUID 末字节 -1，**checksum 不重算**。
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---
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## 四、RDM 应答帧（Butler→主机，已可解码）
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- 信封子类型=02，0x1A-0x1D = `"Butl"` 标记。
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- 0x28-0x29 = RDM 数据区长度 u16 LE；数据区 @0x2A。
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- 数据区首字节 0xAA = DISC 脉冲（0xAA/0x55 位交织编码，checksum 在 17B 内）；否则为标准 RDM 应答（CC@0, CC字段@0x14, PID@0x15-0x16, PDL@0x17, PD@0x18）。
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- DEVICE_INFO PD 布局（19B）：protocolVer(2) model(2) category(2) swVer(4) **footprint(2)@+10** personality(2)@+12 **DMX地址(2)@+14** 保留(2) **传感器数@+18**。
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---
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## 五、注册应答 47B（Butler→主机，线上 89B，全破解）
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| 偏移 | 含义 |
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| 0x00-0x19 | 通用信封：type=2, 子类型=02, len@0x14=47 (0x2f) |
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| 0x1A-0x1D | 设备 IP（LE 逆序字节）= 192.168.123.1 |
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| 0x1E-0x23 | 设备 MAC = 00 16 1c f1 2e 39 |
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| 0x24 | 00 |
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| 0x25-0x28 | 主机 IP（LE 逆序）= 192.168.123.113 |
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| 0x29-0x2E | 主机 MAC = 30 0e d5 59 bb 36 |
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feat: decode remaining frame fields (claim/AERE/announce/discovery-resp/EUCE/events)
- claim 552B: full layout; 240B opaque blocks proven UNCHECKED by Butler
(CLAIM_ZERO=1 ablation: zeroed blocks -> AERE still PASS) -> claim can be
built from scratch with zeros
- AERE 552B: Butler IP/MAC/netmask, fixture UID@0x33, slow counter@0xB1/0xB5,
resp@0xC0; only resp+counter vary across captures
- announce 644B: session GUID, UTF-16BE show-file path, full timestamp
@0x239 (y/mo/d/h/mi/s/ms; live sample decodes to 22:52:50.992 matching SL
session), ephemeral port@0x25C, enable flags
- discovery-resp 217B: device name, serial blob, network block, config block
- EUCE 540B: 'EUCE' magic, version 5, username+computername+GUID, host MAC
- event_b: type=4 1084B RDM-uplink frame identified (RDM response @0x3C)
- analyze: new 'xor' subcommand with periodicity analysis
2026-09-11 14:49:39 +08:00
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## 六、42B 事件帧（Butler→主机，结构破解）
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feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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type=4, 子类型=02, len=42 (0x2a), `"Butl"`@0x1A：
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feat: decode remaining frame fields (claim/AERE/announce/discovery-resp/EUCE/events)
- claim 552B: full layout; 240B opaque blocks proven UNCHECKED by Butler
(CLAIM_ZERO=1 ablation: zeroed blocks -> AERE still PASS) -> claim can be
built from scratch with zeros
- AERE 552B: Butler IP/MAC/netmask, fixture UID@0x33, slow counter@0xB1/0xB5,
resp@0xC0; only resp+counter vary across captures
- announce 644B: session GUID, UTF-16BE show-file path, full timestamp
@0x239 (y/mo/d/h/mi/s/ms; live sample decodes to 22:52:50.992 matching SL
session), ephemeral port@0x25C, enable flags
- discovery-resp 217B: device name, serial blob, network block, config block
- EUCE 540B: 'EUCE' magic, version 5, username+computername+GUID, host MAC
- event_b: type=4 1084B RDM-uplink frame identified (RDM response @0x3C)
- analyze: new 'xor' subcommand with periodicity analysis
2026-09-11 14:49:39 +08:00
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- 0x1E-0x1F = 01 00；0x20-0x21 = 事件码 u16 LE（已见 0x0318=ack_84 / 0x0062=status_84），0x22-0x23 = 00 00；0x24-0x27 = 01 00 00 00；0x28-0x29 = 00 00。
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- 事件码具体语义未解码（不影响功能）。
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feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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2026-09-11 14:07:29 +08:00
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## 六b、心跳 36B（主机→Butler，全破解）
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type=2, 子类型=03, len@0x14=36 (0x24)：
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- 0x1A-0x1D = 主机 IP（LE 逆序）
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- 0x1E-0x23 = 主机 MAC
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- 周期 ~1-6s，会话保活。
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## 六c、发现请求 180B（部分破解）
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type=1, len=180 (0xb4)：0x1A 起为主机名 ASCII（如 "tony"），其余字段未解码。
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feat: decode remaining frame fields (claim/AERE/announce/discovery-resp/EUCE/events)
- claim 552B: full layout; 240B opaque blocks proven UNCHECKED by Butler
(CLAIM_ZERO=1 ablation: zeroed blocks -> AERE still PASS) -> claim can be
built from scratch with zeros
- AERE 552B: Butler IP/MAC/netmask, fixture UID@0x33, slow counter@0xB1/0xB5,
resp@0xC0; only resp+counter vary across captures
- announce 644B: session GUID, UTF-16BE show-file path, full timestamp
@0x239 (y/mo/d/h/mi/s/ms; live sample decodes to 22:52:50.992 matching SL
session), ephemeral port@0x25C, enable flags
- discovery-resp 217B: device name, serial blob, network block, config block
- EUCE 540B: 'EUCE' magic, version 5, username+computername+GUID, host MAC
- event_b: type=4 1084B RDM-uplink frame identified (RDM response @0x3C)
- analyze: new 'xor' subcommand with periodicity analysis
2026-09-11 14:49:39 +08:00
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## 六d、发现应答 217B（Butler→主机，结构破解）
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type=1, 子类型=0f, len=217 (0xd9)：
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- 0x1A-0x22 = 设备名 ASCII `"Butler S2"`
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- 0x29-0x37 = 设备序列号/GUID 样字节（15B，常量）
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- 0x3A-0x3C = 00 15 00（设备类型/能力？，与 AERE 同位置同值）
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- 0x40-0x4E = 网络块：`01 | Butler IP(LE) | 掩码(00ffffff=255.255.255.0) | Butler MAC | 00`
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- 0x59-0x5C = 1a 00 00 00 (26)；0x5D-0x5F = 01 01 fa；0x60-0x63 = 0c 00 02 00
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- 0xAC-0xC8 = Butler 配置块（与 AERE 共享，见七b）
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- 两份抓包逐字节一致 → 除配置块慢变计数器外全静态。
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## 六e、EUCE 广播 540B（主机→广播，结构破解）
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magic `"EUCE"`（非 ENet 信封！），0x0C = 05 00 00 00（版本5?）：
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- 0x11C 起 = ASCII 串：`<用户名><计算机名>-<机器GUID>`（如 `tonycaoDESKTOP-PED2LVD-f7f4a043-17ec-4156-812b-909bdc99f2ff`）
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- 0x216-0x21B = 主机 MAC
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- 其余全 0。即 e:cue 主机身份广播，暖会话下非必需。
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## 六f、1084B RDM 上行帧（Butler→主机，type=4，结构识别）
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len=1084, 子类型=01, 0x20=02, 0x2A=CC（与 RDM 请求同布局），0x3C 起为标准 RDM 应答消息
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（SubSC=01, msgLen@0x3D, dest=ff×6, src=灯具 UID…）。即 Butler 以 1084 信封转发 RDM 应答的另一形态
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（与 69B 小帧 rdm_resp 并存）。
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feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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---
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feat: decode remaining frame fields (claim/AERE/announce/discovery-resp/EUCE/events)
- claim 552B: full layout; 240B opaque blocks proven UNCHECKED by Butler
(CLAIM_ZERO=1 ablation: zeroed blocks -> AERE still PASS) -> claim can be
built from scratch with zeros
- AERE 552B: Butler IP/MAC/netmask, fixture UID@0x33, slow counter@0xB1/0xB5,
resp@0xC0; only resp+counter vary across captures
- announce 644B: session GUID, UTF-16BE show-file path, full timestamp
@0x239 (y/mo/d/h/mi/s/ms; live sample decodes to 22:52:50.992 matching SL
session), ephemeral port@0x25C, enable flags
- discovery-resp 217B: device name, serial blob, network block, config block
- EUCE 540B: 'EUCE' magic, version 5, username+computername+GUID, host MAC
- event_b: type=4 1084B RDM-uplink frame identified (RDM response @0x3C)
- analyze: new 'xor' subcommand with periodicity analysis
2026-09-11 14:49:39 +08:00
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## 七、AECH 认领质询帧 552B（主机→Butler，功能全破解）
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feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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feat: decode remaining frame fields (claim/AERE/announce/discovery-resp/EUCE/events)
- claim 552B: full layout; 240B opaque blocks proven UNCHECKED by Butler
(CLAIM_ZERO=1 ablation: zeroed blocks -> AERE still PASS) -> claim can be
built from scratch with zeros
- AERE 552B: Butler IP/MAC/netmask, fixture UID@0x33, slow counter@0xB1/0xB5,
resp@0xC0; only resp+counter vary across captures
- announce 644B: session GUID, UTF-16BE show-file path, full timestamp
@0x239 (y/mo/d/h/mi/s/ms; live sample decodes to 22:52:50.992 matching SL
session), ephemeral port@0x25C, enable flags
- discovery-resp 217B: device name, serial blob, network block, config block
- EUCE 540B: 'EUCE' magic, version 5, username+computername+GUID, host MAC
- event_b: type=4 1084B RDM-uplink frame identified (RDM response @0x3C)
- analyze: new 'xor' subcommand with periodicity analysis
2026-09-11 14:49:39 +08:00
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type=2, 子类型=05, len=552 (0x228)：
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| 偏移 | 含义 | 备注 |
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|---|---|---|
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| 0x1A-0x1D | 主机 IP（LE 逆序） | |
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| 0x1E-0x23 | 主机 MAC | |
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| 0x24-0x27 | 00 00 00 00 | |
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| 0x28-0x2B | `"AECH"` | |
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| 0x2C-0x87 | **不透明区 A（92B）** | 每轮高熵不同；XOR 无周期 → 真随机或密文 |
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| 0x88-0x8B | nonce u32 LE | 主机自选，每轮不同 |
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| 0x8C-0x8F | B12 u32 LE | 主机自选，会话内恒定（DMX 混淆 rot 基值） |
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| 0x90-0x123 | **不透明区 B（148B）** | 同 A |
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| 0x124-0x227 | 全 0 填充 | |
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**★消融实证（CLAIM_ZERO=1）**：不透明区 A+B 全清零后认领照样 AERE PASS →
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**Butler 只读 nonce/B12/头部，240B 不透明区不校验**（疑为 SL 软件侧证书/许可 blob，与 Butler 无关）。
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→ 认领帧可零模板纯自构造（不透明区填 0 即可）。
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## 七b、AERE 认领应答 552B（Butler→主机，结构破解）
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type=2, 子类型=06, len=552，同会话多轮/跨时段 diff 仅 0xC0-0xC3 + 配置块计数器变化：
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| 偏移 | 含义 |
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|---|---|
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| 0x1A-0x1D | Butler IP（LE 逆序）= 192.168.123.1 |
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| 0x1E-0x23 | Butler MAC = 00 16 1c f1 2e 39 |
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| 0x24-0x27 | 00 71 7b a8（主机 IP 前 3 字节回显？待跨主机验证） |
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| 0x28-0x2B | `"AERE"` |
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| 0x2C-0x2E | 59 bb 36 = 主机 MAC 低 3 字节（回显？） |
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| 0x2F-0x32 | 7f ff ff fd/ff = 端口/状态位掩码（跨时段微变） |
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| 0x33-0x38 | **灯具 UID**（首个应答者；跨时段见 010734880900 / 010734670125） |
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| 0x39-0x3C | 00 15 00 0a（与发现应答同位置同值） |
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| 0x40-0x4E | 网络块：01 \| Butler IP \| 掩码 \| Butler MAC \| 00 |
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| 0x59-0x63 | 1a 00 00 00 01 01 fa 0c 00 02 00 |
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| 0xAC-0xC8 | Butler 配置块：`00 <ctr> 01 00 00 00 / 00 <ctr> 00 00 00 <ctr> 00 00 00 1c 00 1c 00 1d 00 1d / 00 1c 00 1c 00 f0 0a f0 0a`（ctr=慢变计数器 0x23→0x24；0x1c=28/0x1d=29 疑固件版本；0x0af0=2800 ×2） |
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| 0xC0-0xC3 | **resp = G(nonce)**（认领验证值） |
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| 0xC4-0xC8 | 00 f0 0a f0 0a |
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| 其余 | 全 0 |
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## 七c、announce 644B（主机→广播，结构破解）
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type=1, 子类型=15, len=644 (0x284)：
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- 0x3A-0x3D = 1a 00 00 00 (26)
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- 0x40-0x4E = 主机网络块：01 | 主机IP(LE) | 掩码 | 主机MAC | 00
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- 0x162-0x175 = 会话 GUID 样随机 20B（announce_live 为全 0）
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- 0x176-0x17A = 日期头：年 u16LE(0x07ea=2026) + 月 + 日（部分）
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- 0x17D-0x1F7 = **UTF-16BE 字符串：SL show 文件路径**（`C:\Users\<user>\AppData\Local\ecue\SYMPHOLIGHT 5.5\CurrentShow`，announce_live 为全 0）
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- 0x211-0x215 / 0x219-0x21C / 0x221-0x225 = 3 组 5B 会话随机
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- 0x239-0x241 = **完整时间戳**：年 u16LE, 月, 日, 时, 分, 秒, 毫秒 u16LE（announce_live 解码得 22:52:50.992 与 SL 会话时间吻合 ✓）
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- 0x25C-0x25D = 临时端口 u16LE（每会话不同：7200 / 2200）
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- 0x268 / 0x274 / 0x27C / 0x280 = 4 个使能 flag（01 00 00 00）
|
feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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---
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## 八、历史误区更正（2026-09-11）
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1. ~~"RDM 请求消息起始位置可变 (UN_MUTE@0x3A vs BRANCH@0x3C)"~~ → **错误**。424 帧实证全部 SubSC@0x3C，结构固定。
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2. ~~"Butler 帧级校验会话一致性，verbatim 才能过"~~ → **错误**。纯自构造帧全通。之前失败根因：
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- `sl_get_exact.hex` 是 DMX 数据帧被误当 RDM 模板；
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- 旧 `build_rdm_frame` checksum 求和范围多算 1 字节（含模板残留的旧 checksum 槽位）。
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3. ~~"0x2E 是节点序号且必须为 2"~~ → 实测 SL 原帧恒为 01，设 02 也被接受，Butler 不校验此字段。
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---
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2026-09-11 14:07:29 +08:00
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## 九、遗留未解码项（不阻塞功能）
|
feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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| 项 | 状态 |
|
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|
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|---|---|
|
feat: decode remaining frame fields (claim/AERE/announce/discovery-resp/EUCE/events)
- claim 552B: full layout; 240B opaque blocks proven UNCHECKED by Butler
(CLAIM_ZERO=1 ablation: zeroed blocks -> AERE still PASS) -> claim can be
built from scratch with zeros
- AERE 552B: Butler IP/MAC/netmask, fixture UID@0x33, slow counter@0xB1/0xB5,
resp@0xC0; only resp+counter vary across captures
- announce 644B: session GUID, UTF-16BE show-file path, full timestamp
@0x239 (y/mo/d/h/mi/s/ms; live sample decodes to 22:52:50.992 matching SL
session), ephemeral port@0x25C, enable flags
- discovery-resp 217B: device name, serial blob, network block, config block
- EUCE 540B: 'EUCE' magic, version 5, username+computername+GUID, host MAC
- event_b: type=4 1084B RDM-uplink frame identified (RDM response @0x3C)
- analyze: new 'xor' subcommand with periodicity analysis
2026-09-11 14:49:39 +08:00
|
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|
|
| 1947 端口 40B 许可令牌 | 固定 ASCII 常量 `BlZRQphAGxUbi7at8KEfmdZ7TdSB03b+qoC1RIA`，SL 每 ~34s 广播 21 帧双目标；语义未知（常量本身排除与狗绑定）；暖会话**非必需**；冷启动必需性未验证 |
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| 42B 事件码 0x0318(ack)/0x0062(status) 语义 | 结构已解，语义未解码 |
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| bind52 flag ffff/0000 语义 | 结构已解（主机+设备 IP/MAC, 0x64/0x01f4 疑速率参数）；flag 疑绑定/解绑；暖会话**非必需** |
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| AERE 0x24-0x27 / 0x2C-0x2E 回显字段 | 疑主机 IP/MAC 部分回显，需跨主机抓包证实 |
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| AERE/发现应答配置块细节（0x1c/0x1d/0x0af0） | 疑固件版本/端口配置，语义未坐实 |
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| claim 不透明区 240B 真实内容 | Butler 不校验（已消融证实）；疑 SL 软件侧证书/许可 blob，与协议功能无关 |
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| Butler 冷启动是否必须完整前奏（45s 广播+bind+ident+EUCE+1947） | 未验证（最有价值的遗留实验：Butler 断电重启后跑 show） |
|
feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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| NFM680S 通道数漂移（曾见 2ch/1ch） | 近期稳定 1ch，疑早期解析误判；未复现深究 |
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| announce 时间戳/会话 ID 是否参与校验 | 按实测填充新鲜值即可；严格性未消融 |
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2026-09-11 14:07:29 +08:00
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**已证伪的旧猜测**（曾列入待办，本轮排除）：
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- ~~RDM 变长起始~~ → 固定 0x3C
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- ~~会话级帧校验~~ → 不存在
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- ~~0x2E 严格校验~~ → 不校验（1/2 均接受）
|
feat: decode remaining frame fields (claim/AERE/announce/discovery-resp/EUCE/events)
- claim 552B: full layout; 240B opaque blocks proven UNCHECKED by Butler
(CLAIM_ZERO=1 ablation: zeroed blocks -> AERE still PASS) -> claim can be
built from scratch with zeros
- AERE 552B: Butler IP/MAC/netmask, fixture UID@0x33, slow counter@0xB1/0xB5,
resp@0xC0; only resp+counter vary across captures
- announce 644B: session GUID, UTF-16BE show-file path, full timestamp
@0x239 (y/mo/d/h/mi/s/ms; live sample decodes to 22:52:50.992 matching SL
session), ephemeral port@0x25C, enable flags
- discovery-resp 217B: device name, serial blob, network block, config block
- EUCE 540B: 'EUCE' magic, version 5, username+computername+GUID, host MAC
- event_b: type=4 1084B RDM-uplink frame identified (RDM response @0x3C)
- analyze: new 'xor' subcommand with periodicity analysis
2026-09-11 14:49:39 +08:00
|
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- ~~claim 帧 240B 高熵区被 Butler 校验~~ → 清零照样 PASS
|
2026-09-11 14:07:29 +08:00
|
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|
|
feat: crack all DMX/RDM frame fields; show mode now fully self-constructed
- analyze subcommand: offline replay/template field variance, diff, counter analysis
- DMX header fully decoded: port mask @0x20, port lens u16LE=512 @0x34/0x36, counter +1/frame
- RDM request frame fully decoded: counter=0, 0x20=02, 0x2A=0xCC, msgLen=24+PDL,
checksum=0xCC+sum(0x3C..0x53+PDL) @0x53+PDL, pair copy rules
- Fix historical misreadings: RDM always starts @0x3C (not variable); no session-level
frame check exists - earlier failures were wrong template + checksum off-by-one
- show mode: build_dmx_frame/build_rdm_frame2/rdm_pair_copy, zero template dependency
- Decode 47B register response and 42B event frames; doc enet_protocol_current.md rewritten
2026-09-11 12:53:36 +08:00
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---
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## 十、纯自构造实现
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`src/hostdemo.rs`：
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- `build_dmx_frame()` — 零模板 DMX 帧
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- `build_rdm_frame2()` — 零模板 RDM 请求帧
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- `rdm_pair_copy()` — 成对副本
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`HOSTDEMO_MODE=show` 已切换到纯自构造，**运行不再依赖 replay 文件或任何抓包模板**（除 announce144/claim 等静态注册帧，这些也可后续自构造化）。
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