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moby--moby/libnetwork/netutils/utils_freebsd.go
Yong Tang 53bf987984 Fix issue for --fixed-cidr when bridge has multiple addresses
This fix tries to address the issue raised in:
https://github.com/docker/docker/issues/26341
where multiple addresses in a bridge may cause `--fixed-cidr` to
not have the correct addresses.

The issue is that `netutils.ElectInterfaceAddresses(bridgeName)`
only returns the first IPv4 address.

This fix changes `ElectInterfaceAddresses()` and `addresses()`
so that all IPv4 addresses are returned. This will allow the
possibility of selectively choose the address needed.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2016-10-21 13:58:16 -07:00

23 lines
909 B
Go

package netutils
import (
"net"
"github.com/docker/libnetwork/types"
)
// ElectInterfaceAddresses looks for an interface on the OS with the specified name
// and returns returns all its IPv4 and IPv6 addresses in CIDR notation.
// If a failure in retrieving the addresses or no IPv4 address is found, an error is returned.
// If the interface does not exist, it chooses from a predefined
// list the first IPv4 address which does not conflict with other
// interfaces on the system.
func ElectInterfaceAddresses(name string) ([]*net.IPNet, []*net.IPNet, error) {
return nil, nil, types.NotImplementedErrorf("not supported on freebsd")
}
// FindAvailableNetwork returns a network from the passed list which does not
// overlap with existing interfaces in the system
func FindAvailableNetwork(list []*net.IPNet) (*net.IPNet, error) {
return nil, types.NotImplementedErrorf("not supported on freebsd")
}