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src/api2/config/network.rs: only allow one default gateway

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This commit is contained in:
Dietmar Maurer
2020-04-23 10:37:40 +02:00
parent c38b4bb8b2
commit 339965d720
1 changed files with 19 additions and 1 deletions
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20
src/api2/config/network.rs
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@ -1,4 +1,4 @@
use anyhow::{Error};
use anyhow::{Error, bail};
use serde_json::{Value, to_value};
use ::serde::{Deserialize, Serialize};
@ -171,6 +171,14 @@ pub fn update_interface(
crate::tools::detect_modified_configuration_file(&digest, &expected_digest)?;
}
let current_gateway_v4 = config.interfaces.iter()
.find(|(_, interface)| interface.gateway_v4.is_some())
.map(|(name, _)| name.to_string());
let current_gateway_v6 = config.interfaces.iter()
.find(|(_, interface)| interface.gateway_v4.is_some())
.map(|(name, _)| name.to_string());
let interface = config.lookup_mut(&name)?;
if let Some(delete) = delete {
@ -205,8 +213,18 @@ pub fn update_interface(
if let Some(gateway) = gateway {
let is_v6 = gateway.contains(':');
if is_v6 {
if let Some(current_gateway_v6) = current_gateway_v6 {
if current_gateway_v6 != name {
bail!("Default IPv6 gateway already exists on interface '{}'", current_gateway_v6);
}
}
interface.gateway_v6 = Some(gateway);
} else {
if let Some(current_gateway_v4) = current_gateway_v4 {
if current_gateway_v4 != name {
bail!("Default IPv4 gateway already exists on interface '{}'", current_gateway_v4);
}
}
interface.gateway_v4 = Some(gateway);
}
}