1 | #!/bin/bash |
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2 | # Copyright (C) 1996-2006 Red Hat, Inc. all rights reserved. |
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3 | # |
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4 | # This program is free software; you can redistribute it and/or modify |
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5 | # it under the terms of the GNU General Public License, version 2, |
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6 | # as published by the Free Software Foundation. |
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7 | # |
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8 | # This program is distributed in the hope that it will be useful, |
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9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 | # GNU General Public License for more details. |
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12 | # |
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13 | # You should have received a copy of the GNU General Public License |
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14 | # along with this program; if not, write to the Free Software |
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15 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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16 | |
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17 | # Thanks to: |
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18 | # - Razvan Corneliu C.R. Vilt <razvan.vilt@linux360.ro> |
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19 | # - Aaron Hope <aaron.hope@unh.edu> |
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20 | # - Sean Millichamp <sean@enertronllc.com> |
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21 | # for providing the scripts this one is based on |
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22 | |
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23 | . /etc/init.d/functions |
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24 | |
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25 | cd /etc/sysconfig/network-scripts |
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26 | . ./network-functions |
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27 | |
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28 | CONFIG=$1 |
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29 | need_config "$CONFIG" |
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30 | source_config |
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31 | |
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32 | if [ "$PEER_OUTER_IPADDR" = "$PEER_INNER_IPADDR" ]; then |
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33 | # Specifying PEER_INNER_IPADDR would automatically add a route to the peer |
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34 | # through the tunnel, redirecting tunnel packets back to the tunnel and |
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35 | # creating a dead loop. |
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36 | unset PEER_INNER_IPADDR |
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37 | fi |
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38 | |
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39 | case "$TYPE" in |
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40 | GRE) |
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41 | MODE=gre |
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42 | /sbin/modprobe ip_gre |
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43 | ;; |
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44 | IPIP) |
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45 | MODE=ipip |
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46 | /sbin/modprobe ipip |
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47 | ;; |
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48 | *) |
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49 | echo $"Invalid tunnel type $TYPE" |
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50 | exit 1 |
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51 | ;; |
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52 | esac |
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53 | |
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54 | # Generic tunnel devices are not supported here |
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55 | if [ "$DEVICE" = gre0 -o "$DEVICE" = tunl0 ]; then |
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56 | echo $"Device '$DEVICE' isn't supported as a valid GRE device name." |
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57 | exit 1 |
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58 | fi |
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59 | |
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60 | # Create the tunnel |
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61 | # The outer addresses are those of the underlying (public) network. |
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62 | /sbin/ip tunnel add "$DEVICE" mode "$MODE" \ |
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63 | ${MY_OUTER_IPADDR:+local "$MY_OUTER_IPADDR"} \ |
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64 | remote "$PEER_OUTER_IPADDR" ${TTL:+ttl "$TTL"} |
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65 | |
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66 | if [ -n "$MTU" ]; then |
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67 | /sbin/ip link set "$DEVICE" mtu "$MTU" |
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68 | fi |
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69 | |
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70 | # The inner address are used mainly for communication between a gateway |
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71 | # and a private network. When the peer is configured with an inner address |
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72 | # contained in the peer's private network or identical to it's public address, |
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73 | # it need not be specified. |
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74 | /sbin/ip addr add "$MY_INNER_IPADDR" dev "$DEVICE" \ |
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75 | ${PEER_INNER_IPADDR:+peer "$PEER_INNER_IPADDR"} |
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76 | |
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77 | /sbin/ip link set dev "$DEVICE" up |
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78 | |
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79 | exec /etc/sysconfig/network-scripts/ifup-post "$CONFIG" "$2" |
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