mirror of
https://github.com/yunionio/cloudpods.git
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e01f0ce2a2
* netutils2: SNetInterface: add GetGatewayRoutes * hostman: use GetGatewayRoutes * iproute2: route: add and use AddNetlinkRoute * iproute2: route: List4 use RouteSpec * netutils2: SNetInterface: rename GetRoutes to getRoutes * netutils2: SNetInterface: add GetRouteSpecs * netutils2: SNetInterface: add GetGatewayRouteSpecs * hostman: hostbridge: SetupRoutes with iproute2.RouteSpec * hostman: hostinfo: move also other routes * netutils2: SNetInterface: remove now unused methods * iproute2: route: RouteGetByDst: use RouteSpec as return value
88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package netutils2
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import (
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"fmt"
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"net"
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"github.com/vishvananda/netlink"
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"yunion.io/x/log"
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"yunion.io/x/pkg/errors"
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"yunion.io/x/onecloud/pkg/util/iproute2"
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)
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func (n *SNetInterface) GetAddresses() [][]string {
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ipnets, err := iproute2.NewAddress(n.name).List4()
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if err != nil {
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log.Errorf("list address %s: %v", n.name, err)
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return nil
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}
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r := make([][]string, len(ipnets))
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for i, ipnet := range ipnets {
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ip := ipnet.IP
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masklen, _ := ipnet.Mask.Size()
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r[i] = []string{
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ip.String(),
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fmt.Sprintf("%d", masklen),
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}
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}
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return r
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}
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func (n *SNetInterface) GetRouteSpecs() []iproute2.RouteSpec {
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routespecs, err := iproute2.NewRoute(n.name).List4()
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if err != nil {
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return nil
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}
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return routespecs
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}
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func DefaultSrcIpDev() (srcIp net.IP, ifname string, err error) {
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routes, err := iproute2.RouteGetByDst("114.114.114.114")
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if err != nil {
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err = errors.Wrap(err, "get route")
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return
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}
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if len(routes) == 0 {
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err = fmt.Errorf("no route")
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return
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}
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var errs []error
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for i := range routes {
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route := &routes[i]
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if len(route.Src) == 0 {
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continue
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}
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ip4 := route.Src.To4()
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if len(ip4) != 4 || ip4.Equal(net.IPv4zero) {
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errs = append(errs, fmt.Errorf("bad src ipv4 address: %s", ip4))
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continue
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}
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link, err2 := netlink.LinkByIndex(route.LinkIndex)
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if err2 != nil {
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errs = append(errs, errors.Wrap(err2, "link by index"))
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continue
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}
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srcIp = ip4
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ifname = link.Attrs().Name
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return
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}
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err = errors.NewAggregate(errs)
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return
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}
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