107 lines
3.4 KiB
Rust
107 lines
3.4 KiB
Rust
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use anyhow::{Context, Result};
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use tracing::info;
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use crate::tollgate::TollGateConfig;
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use crate::Router;
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/// Create a dedicated pay-as-you-go WiFi interface for TollGate.
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///
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/// Adds a new `wifi-iface` section on the first detected radio, sets the SSID,
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/// marks it as an open network, and ties it to a TollGate firewall zone.
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pub fn provision_ssid(router: &Router, cfg: &TollGateConfig) -> Result<()> {
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let radio = detect_radio(router).context("detect WiFi radio")?;
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info!("[{}] Using radio {} for TollGate SSID", router.host, radio);
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// Add a new wifi-iface section; uci add returns the section name (e.g. "cfg123456").
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let section = router.uci_add("wireless", "wifi-iface")?;
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router.uci_apply(
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"wireless",
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&[
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(&format!("wireless.{}.device", section), &radio),
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(&format!("wireless.{}.mode", section), "ap"),
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(&format!("wireless.{}.ssid", section), &cfg.ssid),
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(&format!("wireless.{}.encryption", section), "none"),
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(&format!("wireless.{}.network", section), "tollgate"),
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// Disable 802.11r/k/v — unnecessary for transient pay-as-you-go clients.
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(&format!("wireless.{}.ieee80211r", section), "0"),
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],
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)?;
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provision_network(router)?;
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provision_firewall(router)?;
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Ok(())
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}
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/// Add a `tollgate` network interface (isolated LAN for TollGate clients).
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fn provision_network(router: &Router) -> Result<()> {
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router.uci_apply(
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"network",
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&[
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("network.tollgate", "interface"),
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("network.tollgate.proto", "static"),
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("network.tollgate.ipaddr", "192.168.99.1"),
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("network.tollgate.netmask", "255.255.255.0"),
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],
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)?;
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// Enable DHCP for the tollgate interface.
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router.uci_apply(
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"dhcp",
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&[
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("dhcp.tollgate", "dhcp"),
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("dhcp.tollgate.interface", "tollgate"),
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("dhcp.tollgate.start", "100"),
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("dhcp.tollgate.limit", "150"),
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("dhcp.tollgate.leasetime", "5m"),
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],
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)?;
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Ok(())
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}
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/// Add firewall zone for the tollgate interface.
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///
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/// TollGate itself gates forwarding via iptables; the firewall zone isolates
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/// tollgate clients from other LAN segments.
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fn provision_firewall(router: &Router) -> Result<()> {
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// Zone
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router.uci_apply(
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"firewall",
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&[
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("firewall.tollgate_zone", "zone"),
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("firewall.tollgate_zone.name", "tollgate"),
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("firewall.tollgate_zone.network", "tollgate"),
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("firewall.tollgate_zone.input", "ACCEPT"),
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("firewall.tollgate_zone.output", "ACCEPT"),
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("firewall.tollgate_zone.forward", "REJECT"),
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],
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)?;
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// Forwarding rule: tollgate → wan (TollGate manages which clients can forward)
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router.uci_apply(
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"firewall",
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&[
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("firewall.tollgate_fwd", "forwarding"),
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("firewall.tollgate_fwd.src", "tollgate"),
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("firewall.tollgate_fwd.dest", "wan"),
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],
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)?;
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Ok(())
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}
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/// Return the first available wireless radio device name (e.g. "radio0").
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fn detect_radio(router: &Router) -> Result<String> {
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let out = router.run_ok("uci show wireless | grep -o 'wireless\\.radio[0-9]*\\.type' | head -1")?;
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// Extract "radioN" from "wireless.radioN.type"
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let radio = out
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.trim()
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.split('.')
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.nth(1)
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.unwrap_or("radio0")
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.to_string();
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Ok(radio)
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}
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