mirror of https://github.com/OISF/suricata
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.6 KiB
Rust
98 lines
2.6 KiB
Rust
/* Copyright (C) 2017-2025 Open Information Security Foundation
|
|
*
|
|
* You can copy, redistribute or modify this Program under the terms of
|
|
* the GNU General Public License version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* version 2 along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
* 02110-1301, USA.
|
|
*/
|
|
|
|
pub const DIR_BOTH: u8 = 0b0000_1100;
|
|
const DIR_TOSERVER: u8 = 0b0000_0100;
|
|
const DIR_TOCLIENT: u8 = 0b0000_1000;
|
|
|
|
#[repr(C)]
|
|
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
|
|
pub enum Direction {
|
|
ToServer = 0x04,
|
|
ToClient = 0x08,
|
|
}
|
|
|
|
impl Direction {
|
|
/// Return true if the direction is to server.
|
|
pub fn is_to_server(&self) -> bool {
|
|
matches!(self, Self::ToServer)
|
|
}
|
|
|
|
/// Return true if the direction is to client.
|
|
pub fn is_to_client(&self) -> bool {
|
|
matches!(self, Self::ToClient)
|
|
}
|
|
|
|
pub fn index(&self) -> usize {
|
|
match self {
|
|
Self::ToClient => 0,
|
|
_ => 1,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Default for Direction {
|
|
fn default() -> Self {
|
|
Direction::ToServer
|
|
}
|
|
}
|
|
|
|
impl std::fmt::Display for Direction {
|
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
match self {
|
|
Self::ToServer => write!(f, "toserver"),
|
|
Self::ToClient => write!(f, "toclient"),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<u8> for Direction {
|
|
fn from(d: u8) -> Self {
|
|
if d & (DIR_TOSERVER | DIR_TOCLIENT) == (DIR_TOSERVER | DIR_TOCLIENT) {
|
|
debug_validate_fail!("Both directions are set");
|
|
Direction::ToServer
|
|
} else if d & DIR_TOSERVER != 0 {
|
|
Direction::ToServer
|
|
} else if d & DIR_TOCLIENT != 0 {
|
|
Direction::ToClient
|
|
} else {
|
|
debug_validate_fail!("Unknown direction!!");
|
|
Direction::ToServer
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<Direction> for u8 {
|
|
fn from(d: Direction) -> u8 {
|
|
d as u8
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod test {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn test_direction() {
|
|
assert!(Direction::ToServer.is_to_server());
|
|
assert!(!Direction::ToServer.is_to_client());
|
|
|
|
assert!(Direction::ToClient.is_to_client());
|
|
assert!(!Direction::ToClient.is_to_server());
|
|
}
|
|
}
|