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/* 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.
*/
/// Flow API from C.
/// cbindgen:ignore
extern "C" {
fn FlowGetLastTimeAsParts(flow: &Flow, secs: *mut u64, usecs: *mut u64);
fn FlowGetFlags(flow: &Flow) -> u32;
fn FlowGetSourcePort(flow: &Flow) -> u16;
fn FlowGetDestinationPort(flow: &Flow) -> u16;
}
// Flow flags
pub const FLOW_DIR_REVERSED: u32 = BIT_U32!(26);
/// Opaque flow type (defined in C)
pub enum Flow {}
/// Rust implementation of Flow.
impl Flow {
/// Return the time of the last flow update as a `Duration`
/// since the epoch.
pub fn get_last_time(&mut self) -> std::time::Duration {
unsafe {
let mut secs: u64 = 0;
let mut usecs: u64 = 0;
FlowGetLastTimeAsParts(self, &mut secs, &mut usecs);
std::time::Duration::new(secs, usecs as u32 * 1000)
}
}
/// Return the flow flags.
pub fn get_flags(&self) -> u32 {
unsafe { FlowGetFlags(self) }
}
/// Return flow ports
pub fn get_ports(&self) -> (u16, u16) {
unsafe { (FlowGetSourcePort(self), FlowGetDestinationPort(self)) }
}
}