libc/new/linux_uapi/linux/
can.rs

1//! Header: `uapi/linux/can.h`
2
3pub(crate) mod bcm;
4pub(crate) mod error;
5pub(crate) mod j1939;
6pub(crate) mod netlink;
7pub(crate) mod raw;
8
9use crate::prelude::*;
10
11pub const CAN_EFF_FLAG: canid_t = 0x80000000;
12pub const CAN_RTR_FLAG: canid_t = 0x40000000;
13pub const CAN_ERR_FLAG: canid_t = 0x20000000;
14
15pub const CAN_SFF_MASK: canid_t = 0x000007FF;
16pub const CAN_EFF_MASK: canid_t = 0x1FFFFFFF;
17pub const CAN_ERR_MASK: canid_t = 0x1FFFFFFF;
18pub const CANXL_PRIO_MASK: crate::canid_t = CAN_SFF_MASK;
19
20pub type canid_t = u32;
21
22pub const CAN_SFF_ID_BITS: c_int = 11;
23pub const CAN_EFF_ID_BITS: c_int = 29;
24pub const CANXL_PRIO_BITS: c_int = CAN_SFF_ID_BITS;
25
26pub type can_err_mask_t = u32;
27
28pub const CAN_MAX_DLC: c_int = 8;
29pub const CAN_MAX_DLEN: usize = 8;
30
31pub const CANFD_MAX_DLC: c_int = 15;
32pub const CANFD_MAX_DLEN: usize = 64;
33
34pub const CANXL_MIN_DLC: c_int = 0;
35pub const CANXL_MAX_DLC: c_int = 2047;
36pub const CANXL_MAX_DLC_MASK: c_int = 0x07FF;
37pub const CANXL_MIN_DLEN: usize = 1;
38pub const CANXL_MAX_DLEN: usize = 2048;
39
40s2! {
41    #[repr(align(8))]
42    pub struct can_frame {
43        pub can_id: canid_t,
44        // FIXME(1.0): this field was renamed to `len` in Linux 5.11
45        pub can_dlc: u8,
46        __pad: Padding<u8>,
47        __res0: Padding<u8>,
48        pub len8_dlc: u8,
49        pub data: [u8; CAN_MAX_DLEN],
50    }
51}
52
53pub const CANFD_BRS: c_int = 0x01;
54pub const CANFD_ESI: c_int = 0x02;
55pub const CANFD_FDF: c_int = 0x04;
56
57s2! {
58    #[repr(align(8))]
59    pub struct canfd_frame {
60        pub can_id: canid_t,
61        pub len: u8,
62        pub flags: u8,
63        __res0: Padding<u8>,
64        __res1: Padding<u8>,
65        #[custom_default([0; CANFD_MAX_DLEN])]
66        pub data: [u8; CANFD_MAX_DLEN],
67    }
68}
69
70pub const CANXL_XLF: c_int = 0x80;
71pub const CANXL_SEC: c_int = 0x01;
72
73s2! {
74    #[exhaustive]
75    pub struct canxl_frame {
76        pub prio: canid_t,
77        pub flags: u8,
78        pub sdt: u8,
79        pub len: u16,
80        pub af: u32,
81        #[custom_default([0; CANXL_MAX_DLEN])]
82        pub data: [u8; CANXL_MAX_DLEN],
83    }
84}
85
86pub const CAN_MTU: usize = size_of::<can_frame>();
87pub const CANFD_MTU: usize = size_of::<canfd_frame>();
88pub const CANXL_MTU: usize = size_of::<canxl_frame>();
89// FIXME(offset_of): use `core::mem::offset_of!` once that is available
90// https://github.com/rust-lang/rfcs/pull/3308
91// pub const CANXL_HDR_SIZE: usize = core::mem::offset_of!(canxl_frame, data);
92pub const CANXL_HDR_SIZE: usize = 12;
93pub const CANXL_MIN_MTU: usize = CANXL_HDR_SIZE + 64;
94pub const CANXL_MAX_MTU: usize = CANXL_MTU;
95
96pub const CAN_RAW: c_int = 1;
97pub const CAN_BCM: c_int = 2;
98pub const CAN_TP16: c_int = 3;
99pub const CAN_TP20: c_int = 4;
100pub const CAN_MCNET: c_int = 5;
101pub const CAN_ISOTP: c_int = 6;
102pub const CAN_J1939: c_int = 7;
103pub const CAN_NPROTO: c_int = 8;
104
105pub const SOL_CAN_BASE: c_int = 100;
106
107s_no_extra_traits2! {
108    #[exhaustive]
109    pub struct sockaddr_can {
110        pub can_family: crate::sa_family_t,
111        pub can_ifindex: c_int,
112        #[custom_default(unsafe { mem::zeroed::<__c_anonymous_sockaddr_can_can_addr>() })]
113        pub can_addr: __c_anonymous_sockaddr_can_can_addr,
114    }
115
116    pub union __c_anonymous_sockaddr_can_can_addr {
117        pub tp: __c_anonymous_sockaddr_can_tp,
118        pub j1939: __c_anonymous_sockaddr_can_j1939,
119    }
120}
121
122s2! {
123    #[exhaustive]
124    pub struct __c_anonymous_sockaddr_can_tp {
125        pub rx_id: canid_t,
126        pub tx_id: canid_t,
127    }
128
129    #[exhaustive]
130    pub struct __c_anonymous_sockaddr_can_j1939 {
131        pub name: u64,
132        pub pgn: u32,
133        pub addr: u8,
134    }
135
136    #[exhaustive]
137    pub struct can_filter {
138        pub can_id: canid_t,
139        pub can_mask: canid_t,
140    }
141}
142
143pub const CAN_INV_FILTER: canid_t = 0x20000000;
libc/new/linux_uapi/linux/can.rs

libc/new/linux_uapi/linux/
can.rs
