github.com/Psiphon-Labs/psiphon-tunnel-core@v2.0.28+incompatible/psiphon/common/parameters/labeledCIDRs.go (about)

     1  /*
     2   * Copyright (c) 2022, Psiphon Inc.
     3   * All rights reserved.
     4   *
     5   * This program is free software: you can redistribute it and/or modify
     6   * it under the terms of the GNU General Public License as published by
     7   * the Free Software Foundation, either version 3 of the License, or
     8   * (at your option) any later version.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package parameters
    21  
    22  import (
    23  	"net"
    24  
    25  	"github.com/Psiphon-Labs/psiphon-tunnel-core/psiphon/common/errors"
    26  )
    27  
    28  // LabeledCIDRs consists of lists of CIDRs referenced by a label value.
    29  type LabeledCIDRs map[string][]string
    30  
    31  // Validate checks that the CIDR values are well-formed.
    32  func (c LabeledCIDRs) Validate() error {
    33  	for _, CIDRs := range c {
    34  		for _, CIDR := range CIDRs {
    35  			_, _, err := net.ParseCIDR(CIDR)
    36  			if err != nil {
    37  				return errors.Trace(err)
    38  			}
    39  		}
    40  	}
    41  	return nil
    42  }