libc/new/linux_uapi/linux/
can.rs

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

libc/new/linux_uapi/linux/
can.rs
