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linux_bridge.rs
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linux_bridge.rs
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use std::convert::TryFrom;
use log::warn;
use crate::{
nispor::linux_bridge_port_vlan::parse_port_vlan_conf, BaseInterface,
LinuxBridgeConfig, LinuxBridgeInterface, LinuxBridgeMulticastRouterType,
LinuxBridgeOptions, LinuxBridgePortConfig, LinuxBridgeStpOptions,
VlanProtocol,
};
pub(crate) fn np_bridge_to_nmstate(
np_iface: &nispor::Iface,
base_iface: BaseInterface,
) -> LinuxBridgeInterface {
let mut br_iface = LinuxBridgeInterface::new();
let mut br_conf = LinuxBridgeConfig::new();
br_iface.base = base_iface;
br_conf.options = Some(np_bridge_options_to_nmstate(np_iface));
if let Some(np_bridge) = &np_iface.bridge {
br_conf.port = Some(
np_bridge
.ports
.as_slice()
.iter()
.map(|iface_name| {
let mut port_conf = LinuxBridgePortConfig::new();
port_conf.name = iface_name.to_string();
port_conf
})
.collect(),
);
}
br_iface.bridge = Some(br_conf);
br_iface
}
pub(crate) fn append_bridge_port_config(
br_iface: &mut LinuxBridgeInterface,
np_iface: &nispor::Iface,
port_np_ifaces: Vec<&nispor::Iface>,
) {
let mut port_confs: Vec<LinuxBridgePortConfig> = Vec::new();
for port_np_iface in port_np_ifaces {
let mut port_conf = LinuxBridgePortConfig::new();
port_conf.name = port_np_iface.name.to_string();
if let Some(np_port_info) = &port_np_iface.bridge_port {
port_conf.stp_hairpin_mode = Some(np_port_info.hairpin_mode);
port_conf.stp_path_cost = Some(np_port_info.stp_path_cost);
port_conf.stp_priority = Some(np_port_info.stp_priority);
if np_iface
.bridge
.as_ref()
.and_then(|br_info| br_info.vlan_filtering)
== Some(true)
{
port_conf.vlan = np_port_info
.vlans
.as_ref()
.and_then(|v| parse_port_vlan_conf(v.as_slice()));
}
}
port_confs.push(port_conf);
}
if let Some(mut br_conf) = br_iface.bridge.as_mut() {
br_conf.port = Some(port_confs);
}
}
fn np_bridge_options_to_nmstate(
np_iface: &nispor::Iface,
) -> LinuxBridgeOptions {
let mut options = LinuxBridgeOptions::default();
if let Some(ref np_bridge) = &np_iface.bridge {
options.stp = Some(get_stp_options(np_bridge));
options.gc_timer = np_bridge.gc_timer;
options.group_addr = np_bridge
.group_addr
.as_ref()
.map(|addr| addr.to_uppercase());
options.group_forward_mask = np_bridge.group_fwd_mask;
options.group_fwd_mask = np_bridge.group_fwd_mask;
options.hash_max = np_bridge.multicast_hash_max;
options.hello_timer = np_bridge.hello_timer;
options.mac_ageing_time = np_bridge.ageing_time.map(devide_by_user_hz);
options.multicast_last_member_count =
np_bridge.multicast_last_member_count;
options.multicast_last_member_interval =
np_bridge.multicast_last_member_interval;
options.multicast_membership_interval =
np_bridge.multicast_membership_interval;
options.multicast_querier = np_bridge.multicast_querier;
options.multicast_querier_interval =
np_bridge.multicast_querier_interval;
options.multicast_query_interval = np_bridge.multicast_query_interval;
options.multicast_query_response_interval =
np_bridge.multicast_query_response_interval;
options.multicast_query_use_ifaddr =
np_bridge.multicast_query_use_ifaddr;
options.multicast_router =
np_bridge.multicast_router.as_ref().and_then(|r| match r {
nispor::BridgePortMulticastRouterType::Disabled => {
Some(LinuxBridgeMulticastRouterType::Disabled)
}
nispor::BridgePortMulticastRouterType::TempQuery => {
Some(LinuxBridgeMulticastRouterType::Auto)
}
nispor::BridgePortMulticastRouterType::Perm => {
Some(LinuxBridgeMulticastRouterType::Enabled)
}
_ => {
warn!("Unsupported linux bridge multicast router {:?}", r);
None
}
});
options.multicast_snooping = np_bridge.multicast_snooping;
options.multicast_startup_query_count =
np_bridge.multicast_startup_query_count;
options.multicast_startup_query_interval =
np_bridge.multicast_startup_query_interval;
options.vlan_protocol =
np_bridge.vlan_protocol.as_ref().and_then(|v| match v {
nispor::BridgeVlanProtocol::Ieee8021Q => {
Some(VlanProtocol::Ieee8021Q)
}
nispor::BridgeVlanProtocol::Ieee8021AD => {
Some(VlanProtocol::Ieee8021Ad)
}
_ => {
warn!("Unsupported linux bridge vlan protocol {:?}", v);
None
}
});
}
options
}
// The kernel is multiplying these bridge properties by USER_HZ, we should
// divide into seconds:
// * forward_delay
// * ageing_time
// * hello_time
// * max_age
fn devide_by_user_hz(v: u32) -> u32 {
let user_hz = unsafe { libc::sysconf(libc::_SC_CLK_TCK) } as u32;
v / user_hz
}
fn get_stp_options(np_bridge: &nispor::BridgeInfo) -> LinuxBridgeStpOptions {
let mut stp_opt = LinuxBridgeStpOptions::new();
stp_opt.enabled = Some(
[
Some(nispor::BridgeStpState::KernelStp),
Some(nispor::BridgeStpState::UserStp),
]
.contains(&np_bridge.stp_state),
);
stp_opt.forward_delay = np_bridge.forward_delay.map(|v| {
u8::try_from(devide_by_user_hz(v))
.unwrap_or(LinuxBridgeStpOptions::FORWARD_DELAY_MAX)
});
stp_opt.max_age = np_bridge.max_age.map(|v| {
u8::try_from(devide_by_user_hz(v))
.unwrap_or(LinuxBridgeStpOptions::MAX_AGE_MAX)
});
stp_opt.hello_time = np_bridge.hello_time.map(|v| {
u8::try_from(devide_by_user_hz(v))
.unwrap_or(LinuxBridgeStpOptions::HELLO_TIME_MAX)
});
stp_opt.priority = np_bridge.priority;
stp_opt
}