mirror of
https://github.com/juanfont/headscale.git
synced 2024-12-23 00:17:38 +00:00
4b65cf48d0
This commits extends the mapper with functions for creating "delta" MapResponses for different purposes (peer changed, peer removed, derp). This wires up the new state management with a new StateUpdate struct letting the poll worker know what kind of update to send to the connected nodes. Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
138 lines
3.2 KiB
Go
138 lines
3.2 KiB
Go
package types
|
|
|
|
import (
|
|
"database/sql/driver"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"net/netip"
|
|
|
|
"tailscale.com/tailcfg"
|
|
)
|
|
|
|
var ErrCannotParsePrefix = errors.New("cannot parse prefix")
|
|
|
|
// This is a "wrapper" type around tailscales
|
|
// Hostinfo to allow us to add database "serialization"
|
|
// methods. This allows us to use a typed values throughout
|
|
// the code and not have to marshal/unmarshal and error
|
|
// check all over the code.
|
|
type HostInfo tailcfg.Hostinfo
|
|
|
|
func (hi *HostInfo) Scan(destination interface{}) error {
|
|
switch value := destination.(type) {
|
|
case []byte:
|
|
return json.Unmarshal(value, hi)
|
|
|
|
case string:
|
|
return json.Unmarshal([]byte(value), hi)
|
|
|
|
default:
|
|
return fmt.Errorf("%w: unexpected data type %T", ErrMachineAddressesInvalid, destination)
|
|
}
|
|
}
|
|
|
|
// Value return json value, implement driver.Valuer interface.
|
|
func (hi HostInfo) Value() (driver.Value, error) {
|
|
bytes, err := json.Marshal(hi)
|
|
|
|
return string(bytes), err
|
|
}
|
|
|
|
type IPPrefix netip.Prefix
|
|
|
|
func (i *IPPrefix) Scan(destination interface{}) error {
|
|
switch value := destination.(type) {
|
|
case string:
|
|
prefix, err := netip.ParsePrefix(value)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*i = IPPrefix(prefix)
|
|
|
|
return nil
|
|
default:
|
|
return fmt.Errorf("%w: unexpected data type %T", ErrCannotParsePrefix, destination)
|
|
}
|
|
}
|
|
|
|
// Value return json value, implement driver.Valuer interface.
|
|
func (i IPPrefix) Value() (driver.Value, error) {
|
|
prefixStr := netip.Prefix(i).String()
|
|
|
|
return prefixStr, nil
|
|
}
|
|
|
|
type IPPrefixes []netip.Prefix
|
|
|
|
func (i *IPPrefixes) Scan(destination interface{}) error {
|
|
switch value := destination.(type) {
|
|
case []byte:
|
|
return json.Unmarshal(value, i)
|
|
|
|
case string:
|
|
return json.Unmarshal([]byte(value), i)
|
|
|
|
default:
|
|
return fmt.Errorf("%w: unexpected data type %T", ErrMachineAddressesInvalid, destination)
|
|
}
|
|
}
|
|
|
|
// Value return json value, implement driver.Valuer interface.
|
|
func (i IPPrefixes) Value() (driver.Value, error) {
|
|
bytes, err := json.Marshal(i)
|
|
|
|
return string(bytes), err
|
|
}
|
|
|
|
type StringList []string
|
|
|
|
func (i *StringList) Scan(destination interface{}) error {
|
|
switch value := destination.(type) {
|
|
case []byte:
|
|
return json.Unmarshal(value, i)
|
|
|
|
case string:
|
|
return json.Unmarshal([]byte(value), i)
|
|
|
|
default:
|
|
return fmt.Errorf("%w: unexpected data type %T", ErrMachineAddressesInvalid, destination)
|
|
}
|
|
}
|
|
|
|
// Value return json value, implement driver.Valuer interface.
|
|
func (i StringList) Value() (driver.Value, error) {
|
|
bytes, err := json.Marshal(i)
|
|
|
|
return string(bytes), err
|
|
}
|
|
|
|
type StateUpdateType int
|
|
|
|
const (
|
|
StateFullUpdate StateUpdateType = iota
|
|
StatePeerChanged
|
|
StatePeerRemoved
|
|
StateDERPUpdated
|
|
)
|
|
|
|
// StateUpdate is an internal message containing information about
|
|
// a state change that has happened to the network.
|
|
type StateUpdate struct {
|
|
// The type of update
|
|
Type StateUpdateType
|
|
|
|
// Changed must be set when Type is StatePeerChanged and
|
|
// contain the Machine IDs of machines that has changed.
|
|
Changed []uint64
|
|
|
|
// Removed must be set when Type is StatePeerRemoved and
|
|
// contain a list of the nodes that has been removed from
|
|
// the network.
|
|
Removed []tailcfg.NodeID
|
|
|
|
// DERPMap must be set when Type is StateDERPUpdated and
|
|
// contain the new DERP Map.
|
|
DERPMap tailcfg.DERPMap
|
|
}
|