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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ***   To edit the content of this header, modify the corresponding
     11  ***   source file (e.g. under external/kernel-headers/original/) then
     12  ***   run bionic/libc/kernel/tools/update_all.py
     13  ***
     14  ***   Any manual change here will be lost the next time this script will
     15  ***   be run. You've been warned!
     16  ***
     17  ****************************************************************************
     18  ****************************************************************************/
     19 #ifndef _UAPI_CAN_GW_H
     20 #define _UAPI_CAN_GW_H
     21 #include <linux/types.h>
     22 #include <linux/can.h>
     23 struct rtcanmsg {
     24   __u8 can_family;
     25   __u8 gwtype;
     26   __u16 flags;
     27 };
     28 enum {
     29   CGW_TYPE_UNSPEC,
     30   CGW_TYPE_CAN_CAN,
     31   __CGW_TYPE_MAX
     32 };
     33 #define CGW_TYPE_MAX (__CGW_TYPE_MAX - 1)
     34 enum {
     35   CGW_UNSPEC,
     36   CGW_MOD_AND,
     37   CGW_MOD_OR,
     38   CGW_MOD_XOR,
     39   CGW_MOD_SET,
     40   CGW_CS_XOR,
     41   CGW_CS_CRC8,
     42   CGW_HANDLED,
     43   CGW_DROPPED,
     44   CGW_SRC_IF,
     45   CGW_DST_IF,
     46   CGW_FILTER,
     47   CGW_DELETED,
     48   CGW_LIM_HOPS,
     49   CGW_MOD_UID,
     50   __CGW_MAX
     51 };
     52 #define CGW_MAX (__CGW_MAX - 1)
     53 #define CGW_FLAGS_CAN_ECHO 0x01
     54 #define CGW_FLAGS_CAN_SRC_TSTAMP 0x02
     55 #define CGW_FLAGS_CAN_IIF_TX_OK 0x04
     56 #define CGW_MOD_FUNCS 4
     57 #define CGW_MOD_ID 0x01
     58 #define CGW_MOD_DLC 0x02
     59 #define CGW_MOD_DATA 0x04
     60 #define CGW_FRAME_MODS 3
     61 #define MAX_MODFUNCTIONS (CGW_MOD_FUNCS * CGW_FRAME_MODS)
     62 struct cgw_frame_mod {
     63   struct can_frame cf;
     64   __u8 modtype;
     65 } __attribute__((packed));
     66 #define CGW_MODATTR_LEN sizeof(struct cgw_frame_mod)
     67 struct cgw_csum_xor {
     68   __s8 from_idx;
     69   __s8 to_idx;
     70   __s8 result_idx;
     71   __u8 init_xor_val;
     72 } __attribute__((packed));
     73 struct cgw_csum_crc8 {
     74   __s8 from_idx;
     75   __s8 to_idx;
     76   __s8 result_idx;
     77   __u8 init_crc_val;
     78   __u8 final_xor_val;
     79   __u8 crctab[256];
     80   __u8 profile;
     81   __u8 profile_data[20];
     82 } __attribute__((packed));
     83 #define CGW_CS_XOR_LEN sizeof(struct cgw_csum_xor)
     84 #define CGW_CS_CRC8_LEN sizeof(struct cgw_csum_crc8)
     85 enum {
     86   CGW_CRC8PRF_UNSPEC,
     87   CGW_CRC8PRF_1U8,
     88   CGW_CRC8PRF_16U8,
     89   CGW_CRC8PRF_SFFID_XOR,
     90   __CGW_CRC8PRF_MAX
     91 };
     92 #define CGW_CRC8PRF_MAX (__CGW_CRC8PRF_MAX - 1)
     93 #endif
     94