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DDP input: reject packets with unsupported data type or non-display destination (#5390)

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* Fix: reject invalid DDP packets with wrong destination or unsupported data type

Co-authored-by: DedeHai <6280424+DedeHai@users.noreply.github.com>
This commit is contained in:
Copilot
2026-03-29 18:01:11 +02:00
committed by Frank
parent a233e99909
commit d9e8203276
5 changed files with 30 additions and 27 deletions
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17
wled00/src/dependencies/e131/ESPAsyncE131.h
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@@ -49,13 +49,26 @@ typedef struct ip_addr ip4_addr_t;
#define E131_DEFAULT_PORT 5568
#define ARTNET_DEFAULT_PORT 6454
#define DDP_DEFAULT_PORT 4048
#define DDP_HEADER_LEN 10
#define DDP_SYNCPACKET_LEN 10
#define DDP_PUSH_FLAG 0x01
#define DDP_TIMECODE_FLAG 0x10
#define DDP_FLAGS_VER 0xc0 // version mask
#define DDP_FLAGS_VER1 0x40 // version=1
#define DDP_FLAGS_PUSH 0x01
#define DDP_FLAGS_QUERY 0x02
#define DDP_FLAGS_REPLY 0x04
#define DDP_FLAGS_STORAGE 0x08
#define DDP_FLAGS_TIME 0x10
#define DDP_CHANNELS_PER_PACKET 1440 // 480 leds
#define DDP_TYPE_RGB24 0x0B // 00 001 011 (RGB , 8 bits per channel, 3 channels)
#define DDP_TYPE_RGBW32 0x1B // 00 011 011 (RGBW, 8 bits per channel, 4 channels)
#define DDP_ID_DISPLAY 1
#define DDP_ID_CONFIG 250
#define DDP_ID_STATUS 251
#define ARTNET_OPCODE_OPDMX 0x5000
#define ARTNET_OPCODE_OPPOLL 0x2000
#define ARTNET_OPCODE_OPPOLLREPLY 0x2100