mirror of
https://github.com/siderolabs/talos.git
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f7ad24ec4f
Added a property to userdata to allow a network interface to be ignored, such that Talos will perform no operations on it (including DHCP). Also added kernel commandline parameter (talos.network.interface.ignore) to specify a network interface should be ignored. Also allows chaining of kernel cmdline parameter Contains() where the parameter in question does not exist. Fixes #1124 Signed-off-by: Seán C McCord <ulexus@gmail.com>
76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package nic
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import (
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"errors"
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"net"
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"github.com/hashicorp/go-multierror"
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"github.com/talos-systems/talos/internal/app/networkd/pkg/address"
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"github.com/talos-systems/talos/internal/pkg/kernel"
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"github.com/talos-systems/talos/pkg/constants"
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)
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// TODO: Probably should put together some map here
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// to map number with string()
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const (
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Bond = iota
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Single
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// https://tools.ietf.org/html/rfc791
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MinimumMTU = 68
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MaximumMTU = 65536
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)
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// NetworkInterface provides an abstract configuration representation for a
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// network interface
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type NetworkInterface struct {
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Ignore bool
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Name string
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Type int
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MTU uint32
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Index uint32
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SubInterfaces []string
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AddressMethod []address.Addressing
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}
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// IsIgnored checks the network interface to see if it should be ignored and not configured
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func (n *NetworkInterface) IsIgnored() bool {
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if n.Ignore || kernel.ProcCmdline().Get(constants.KernelParamNetworkInterfaceIgnore).Contains(n.Name) {
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return true
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}
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return false
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}
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// Create returns a NetworkInterface with all of the given setter options
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// applied
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func Create(link *net.Interface, setters ...Option) (*NetworkInterface, error) {
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// Default interface setup
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iface := defaultOptions()
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// Configure interface with any specified options
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var result *multierror.Error
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for _, setter := range setters {
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result = multierror.Append(setter(iface))
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}
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// TODO: May need to look at switching this around to filter by Interface.HardwareAddr
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// Ensure we have an interface name defined
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if iface.Name == "" {
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result = multierror.Append(errors.New("interface must have a name"))
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}
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// If no addressing methods have been configured, default to DHCP
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// TODO: do we want this behavior or to be explicit with userdata
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// so we dont configure every interface be default?
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if len(iface.AddressMethod) == 0 {
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iface.AddressMethod = append(iface.AddressMethod, &address.DHCP{NetIf: link})
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}
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return iface, result.ErrorOrNil()
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}
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