github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/router/network/network_darwin.go (about)

     1  /*
     2   * Copyright (C) 2020 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program is free software: you can redistribute it and/or modify
     5   * it under the terms of the GNU General Public License as published by
     6   * the Free Software Foundation, either version 3 of the License, or
     7   * (at your option) any later version.
     8   *
     9   * This program is distributed in the hope that it will be useful,
    10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12   * GNU General Public License for more details.
    13   *
    14   * You should have received a copy of the GNU General Public License
    15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package network
    19  
    20  import (
    21  	"net"
    22  
    23  	"github.com/jackpal/gateway"
    24  
    25  	"github.com/mysteriumnetwork/node/utils/cmdutil"
    26  )
    27  
    28  // RoutingTable implements a set of platform specific tool for creating, deleting
    29  // and observe routing tables rules for a different needs.
    30  type RoutingTable struct{}
    31  
    32  // DiscoverGateway returns system default gateway.
    33  func (t *RoutingTable) DiscoverGateway() (net.IP, error) {
    34  	return gateway.DiscoverGateway()
    35  }
    36  
    37  // ExcludeRule adds a single IP address to be excluded from the main tunnelled traffic.
    38  // Traffic sent to the IP address will be directed to the system default gaitway
    39  // instead of tunnel.
    40  func (t *RoutingTable) ExcludeRule(ip, gw net.IP) error {
    41  	return cmdutil.SudoExec("route", "add", "-host", ip.String(), gw.String())
    42  }
    43  
    44  // DeleteRule removes excluded routing table rule to return it back to routing
    45  // thought the tunnel.
    46  func (t *RoutingTable) DeleteRule(ip, gw net.IP) error {
    47  	return cmdutil.SudoExec("route", "delete", ip.String(), gw.String())
    48  }