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networkdriver: add ErrNoDefaultRoute

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Docker-DCO-1.1-Signed-off-by: Johan Euphrosine <proppy@google.com> (github: google)
Upstream-commit: 1b9c5edc6c7acbe894c4b2db3e3e4a1f1353ccc5
Component: engine
This commit is contained in:
Johan Euphrosine
2014-02-03 14:27:40 -08:00
parent 67b7b510b9
commit 2b1dbf920f
1 changed files with 4 additions and 2 deletions
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6
components/engine/networkdriver/utils.go
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@ -2,6 +2,7 @@ package networkdriver
import (
"encoding/binary"
"errors"
"fmt"
"net"
@ -10,6 +11,7 @@ import (
var (
networkGetRoutesFct = netlink.NetworkGetRoutes
ErrNoDefaultRoute = errors.New("no default route")
)
func CheckNameserverOverlaps(nameservers []string, toCheck *net.IPNet) error {
@ -103,7 +105,7 @@ func GetIfaceAddr(name string) (net.Addr, error) {
}
func GetDefaultRouteIface() (*net.Interface, error) {
rs, err := netlink.NetworkGetRoutes()
rs, err := networkGetRoutesFct()
if err != nil {
return nil, fmt.Errorf("unable to get routes: %v", err)
}
@ -112,5 +114,5 @@ func GetDefaultRouteIface() (*net.Interface, error) {
return r.Iface, nil
}
}
return nil, fmt.Errorf("no default route")
return nil, ErrNoDefaultRoute
}