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package port
import (
"context"
"net"
)
type Spec struct {
Proto string `json:"proto,omitempty"` // either "tcp" or "udp". in future "sctp" will be supported as well.
ParentIP string `json:"parentIP,omitempty"` // IPv4 address. can be empty (0.0.0.0).
ParentPort int `json:"parentPort,omitempty"`
ChildPort int `json:"childPort,omitempty"`
}
type Status struct {
ID int `json:"id"`
Spec Spec `json:"spec"`
}
// Manager MUST be thread-safe.
type Manager interface {
AddPort(ctx context.Context, spec Spec) (*Status, error)
ListPorts(ctx context.Context) ([]Status, error)
RemovePort(ctx context.Context, id int) error
}
// ChildContext is used for RunParentDriver
type ChildContext struct {
// PID of the child, can be used for ns-entering to the child namespaces.
PID int
// IP of the tap device
IP net.IP
}
// ParentDriver is a driver for the parent process.
type ParentDriver interface {
Manager
// OpaqueForChild typically consists of socket path
// for controlling child from parent
OpaqueForChild() map[string]string
// RunParentDriver signals initComplete when ParentDriver is ready to
// serve as Manager.
// RunParentDriver blocks until quit is signaled.
//
// ChildContext is optional.
RunParentDriver(initComplete chan struct{}, quit <-chan struct{}, cctx *ChildContext) error
}
type ChildDriver interface {
RunChildDriver(opaque map[string]string, quit <-chan struct{}) error
}
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