98 lines
2.9 KiB
Rust
98 lines
2.9 KiB
Rust
//! Traffic Control Settings (Network rate limits)
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use std::collections::HashMap;
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use anyhow::Error;
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use lazy_static::lazy_static;
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use proxmox_schema::{ApiType, Schema};
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use pbs_api_types::{TrafficControlRule, TRAFFIC_CONTROL_ID_SCHEMA};
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use proxmox_section_config::{SectionConfig, SectionConfigData, SectionConfigPlugin};
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use crate::memcom::Memcom;
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use crate::{open_backup_lockfile, replace_backup_config, BackupLockGuard};
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lazy_static! {
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/// Static [`SectionConfig`] to access parser/writer functions.
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pub static ref CONFIG: SectionConfig = init();
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}
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fn init() -> SectionConfig {
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let mut config = SectionConfig::new(&TRAFFIC_CONTROL_ID_SCHEMA);
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let obj_schema = match TrafficControlRule::API_SCHEMA {
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Schema::Object(ref obj_schema) => obj_schema,
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_ => unreachable!(),
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};
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let plugin = SectionConfigPlugin::new("rule".to_string(), Some("name".to_string()), obj_schema);
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config.register_plugin(plugin);
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config
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}
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/// Configuration file name
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pub const TRAFFIC_CONTROL_CFG_FILENAME: &str = "/etc/proxmox-backup/traffic-control.cfg";
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/// Lock file name (used to prevent concurrent access)
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pub const TRAFFIC_CONTROL_CFG_LOCKFILE: &str = "/etc/proxmox-backup/.traffic-control.lck";
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/// Get exclusive lock
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pub fn lock_config() -> Result<BackupLockGuard, Error> {
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open_backup_lockfile(TRAFFIC_CONTROL_CFG_LOCKFILE, None, true)
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}
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/// Read and parse the configuration file
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pub fn config() -> Result<(SectionConfigData, [u8;32]), Error> {
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let content = proxmox::tools::fs::file_read_optional_string(TRAFFIC_CONTROL_CFG_FILENAME)?
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.unwrap_or_else(|| "".to_string());
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let digest = openssl::sha::sha256(content.as_bytes());
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let data = CONFIG.parse(TRAFFIC_CONTROL_CFG_FILENAME, &content)?;
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Ok((data, digest))
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}
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/// Save the configuration file
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pub fn save_config(config: &SectionConfigData) -> Result<(), Error> {
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let raw = CONFIG.write(TRAFFIC_CONTROL_CFG_FILENAME, &config)?;
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replace_backup_config(TRAFFIC_CONTROL_CFG_FILENAME, raw.as_bytes())?;
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// increase traffic control generation
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// We use this in TrafficControlCache
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let memcom = Memcom::new()?;
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memcom.increase_traffic_control_generation();
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Ok(())
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}
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// shell completion helper
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pub fn complete_traffic_control_name(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
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match config() {
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Ok((data, _digest)) => data.sections.iter().map(|(id, _)| id.to_string()).collect(),
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Err(_) => return vec![],
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test1() -> Result<(), Error> {
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let content = "rule: rule1
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comment localnet at working hours
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network 192.168.2.0/24
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network 192.168.3.0/24
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rate-in 500000
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timeframe mon..wed 8:00-16:30
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timeframe fri 9:00-12:00
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";
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let data = CONFIG.parse(TRAFFIC_CONTROL_CFG_FILENAME, &content)?;
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eprintln!("GOT {:?}", data);
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Ok(())
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}
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}
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