// OpenPort sets the policy of the port with protocol an number to be
// opened, for all given units.
func (u *UniterAPI) OpenPort(args params.EntitiesPorts) (params.ErrorResults, error) {
result := params.ErrorResults{
Results: make([]params.ErrorResult, len(args.Entities)),
}
canAccess, err := u.accessUnit()
if err != nil {
return params.ErrorResults{}, err
}
for i, entity := range args.Entities {
tag, err := names.ParseUnitTag(entity.Tag)
if err != nil {
result.Results[i].Error = common.ServerError(common.ErrPerm)
continue
}
err = common.ErrPerm
if canAccess(tag) {
var unit *state.Unit
unit, err = u.getUnit(tag)
if err == nil {
err = unit.OpenPort(entity.Protocol, entity.Port)
}
}
result.Results[i].Error = common.ServerError(err)
}
return result, nil
}