Add a new EtherType ETH_P_REALTEK to the if_ether.h uapi header. The EtherType 0x8899 is used in a number of different protocols from Realtek Semiconductor Corp [1], so no general assumptions should be made when trying to decode such packets. Observed protocols include: 0x1 - Realtek Remote Control protocol [2] 0x2 - Echo protocol [2] 0x3 - Loop detection protocol [2] 0x4 - RTL8365MB 4- and 8-byte switch CPU tag protocols [3] 0x9 - RTL8306 switch CPU tag protocol [4] 0xA - RTL8366RB switch CPU tag protocol [4] [1] https://lore.kernel.org/netdev/CACRpkdYQthFgjwVzHyK3DeYUOdcYyWmdjDPG=Rf9B3VrJ12Rzg@mail.gmail.com/ [2] https://www.wireshark.org/lists/ethereal-dev/200409/msg00090.html [3] https://lore.kernel.org/netdev/20210822193145.1312668-4-alvin@pqrs.dk/ [4] https://lore.kernel.org/netdev/20200708122537.1341307-2-linus.walleij@linaro.org/
Showing the changes to include/uapi (1 of 1 file). Show all
Unified · Split
| @@ -86,6 +86,7 @@ · 85 unmodified lines | ||
| 86 | 86 | * over Ethernet |
| 87 | 87 | */ |
| 88 | 88 | #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ |
| 89 | +#define ETH_P_REALTEK 0x8899 /* Multiple proprietary protocols */ | |
| 89 | 90 | #define ETH_P_AOE 0x88A2 /* ATA over Ethernet */ |
| 90 | 91 | #define ETH_P_8021AD 0x88A8 /* 802.1ad Service VLAN */ |
| 91 | 92 | #define ETH_P_802_EX1 0x88B5 /* 802.1 Local Experimental 1. */ |