[1108] | 1 | #!/bin/sh |
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| 2 | # |
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| 3 | # init.ipv6-global |
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| 4 | # |
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| 5 | # |
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| 6 | # Taken from: init.ipv6-global |
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| 7 | # (P) & (C) 2001-2005 by Peter Bieringer <pb@bieringer.de> |
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| 8 | # |
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| 9 | # You will find more information on the initscripts-ipv6 homepage at |
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| 10 | # http://www.deepspace6.net/projects/initscripts-ipv6.html |
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| 11 | # |
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| 12 | # RHL integration assistance by Pekka Savola <pekkas@netcore.fi> |
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| 13 | # |
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| 14 | # Version: 2005-01-04 |
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| 15 | # |
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| 16 | # Calling parameters: |
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| 17 | # $1: action (currently supported: start|stop|showsysctl) |
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| 18 | # $2: position for start|stop (currently supported: pre|post) |
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| 19 | # |
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| 20 | # Called by hooks from /etc/[rc.d/]init.d/network |
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| 21 | # |
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| 22 | # Uses following information from /etc/sysconfig/network: |
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| 23 | # IPV6FORWARDING=yes|no: controls global IPv6 forwarding (default: no) |
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| 24 | # IPV6_AUTOCONF=yes|no: controls global automatic IPv6 configuration |
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| 25 | # (default: yes if IPV6FORWARDING=no, no if IPV6FORWARDING=yes) |
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| 26 | # IPV6_AUTOTUNNEL=yes|no: controls automatic IPv6 tunneling (default: no) |
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| 27 | # IPV6_DEFAULTGW=<ipv6address[%interface]> [optional] |
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| 28 | # IPV6_DEFAULTDEV=<interface> [optional] |
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| 29 | # |
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| 30 | |
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| 31 | |
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| 32 | |
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| 33 | . /etc/sysconfig/network |
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| 34 | |
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| 35 | cd /etc/sysconfig/network-scripts |
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[2573] | 36 | . /etc/sysconfig/network-scripts/network-functions |
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[1108] | 37 | |
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| 38 | # Get action and hook position |
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| 39 | ACTION="$1" |
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| 40 | POSITION="$2" |
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| 41 | |
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| 42 | [ -f /etc/sysconfig/network-scripts/network-functions-ipv6 ] || exit 1 |
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| 43 | . /etc/sysconfig/network-scripts/network-functions-ipv6 |
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| 44 | |
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| 45 | # Initialize IPv6, depending on caller option |
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| 46 | case $ACTION in |
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| 47 | start) |
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| 48 | case $POSITION in |
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| 49 | pre) |
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| 50 | # IPv6 test, module loaded, exit if system is not IPv6-ready |
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| 51 | ipv6_test || exit 1 |
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| 52 | |
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| 53 | |
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| 54 | if [ "$IPV6FORWARDING" = "yes" ]; then |
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| 55 | ipv6_global_forwarding=1 |
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| 56 | ipv6_global_auto=0 |
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| 57 | else |
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| 58 | ipv6_global_forwarding=0 |
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| 59 | if [ "$IPV6_AUTOCONF" = "no" ]; then |
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| 60 | ipv6_global_auto=0 |
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| 61 | else |
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| 62 | ipv6_global_auto=1 |
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| 63 | fi |
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| 64 | fi |
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| 65 | |
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| 66 | # Reset IPv6 sysctl switches for "all", "default" and still existing devices |
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| 67 | for i in /proc/sys/net/ipv6/conf/* ; do |
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| 68 | interface=${i##*/} |
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| 69 | # Host/Router behaviour for the interface |
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| 70 | ipv6_exec_sysctl -w net.ipv6.conf.$interface.forwarding=$ipv6_global_forwarding >/dev/null 2>&1 |
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| 71 | |
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| 72 | # Autoconfiguration and redirect handling for Hosts |
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| 73 | ipv6_exec_sysctl -w net.ipv6.conf.$interface.accept_ra=$ipv6_global_auto >/dev/null 2>&1 |
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| 74 | ipv6_exec_sysctl -w net.ipv6.conf.$interface.accept_redirects=$ipv6_global_auto >/dev/null 2>&1 |
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| 75 | done |
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| 76 | ;; |
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| 77 | |
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| 78 | post) |
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| 79 | # IPv6 test, module loaded, exit if system is not IPv6-ready |
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| 80 | ipv6_test || exit 1 |
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| 81 | |
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| 82 | |
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| 83 | if [ "$IPV6_AUTOTUNNEL" = "yes" ]; then |
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| 84 | ipv6_enable_autotunnel |
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| 85 | # autotunnel interface doesn't require a MTU setup |
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| 86 | fi |
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| 87 | |
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| 88 | ## Add some routes which should never appear on the wire |
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| 89 | # Unreachable IPv4-only addresses, normally blocked by source address selection |
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| 90 | ipv6_exec_ip route add unreach ::ffff:0.0.0.0/96 |
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| 91 | # Unreachable IPv4-mapped addresses |
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| 92 | ipv6_exec_ip route add unreach ::0.0.0.0/96 |
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| 93 | # Unreachable 6to4: IPv4 multicast, reserved, limited broadcast |
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| 94 | ipv6_exec_ip route add unreach 2002:e000::/19 |
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| 95 | # Unreachable 6to4: IPv4 loopback |
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| 96 | ipv6_exec_ip route add unreach 2002:7f00::/24 |
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| 97 | # Unreachable 6to4: IPv4 private (RFC 1918) |
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| 98 | ipv6_exec_ip route add unreach 2002:0a00::/24 |
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| 99 | ipv6_exec_ip route add unreach 2002:ac10::/28 |
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| 100 | ipv6_exec_ip route add unreach 2002:c0a8::/32 |
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| 101 | # Unreachable 6to4: IPv4 private (APIPA / DHCP link-local) |
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| 102 | ipv6_exec_ip route add unreach 2002:a9fe::/32 |
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| 103 | # Unreachable IPv6: 6bone test addresses |
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| 104 | ipv6_exec_ip route add unreach 3ffe:ffff::/32 |
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| 105 | |
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| 106 | # Set default route for autotunnel, if specified |
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| 107 | if [ "$IPV6_DEFAULTDEV" = "sit0" -a "$IPV6_AUTOTUNNEL" = "yes" ]; then |
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| 108 | if [ -n "$IPV6_DEFAULTGW" ]; then |
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| 109 | ipv6_set_default_route $IPV6_DEFAULTGW $IPV6_DEFAULTDEV sit0 |
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| 110 | elif [ -n "$IPV6_DEFAULTDEV" ]; then |
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| 111 | ipv6_set_default_route "" $IPV6_DEFAULTDEV sit0 |
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| 112 | fi |
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| 113 | fi |
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| 114 | ;; |
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| 115 | |
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| 116 | *) |
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| 117 | echo "Usage: $0 $1 {pre|post}" |
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| 118 | ;; |
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| 119 | |
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| 120 | esac |
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| 121 | ;; |
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| 122 | |
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| 123 | stop) |
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| 124 | case $POSITION in |
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| 125 | pre) |
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| 126 | # IPv6 test, no module loaded, exit if system is not IPv6-ready |
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| 127 | ipv6_test testonly || exit 0 |
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| 128 | |
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| 129 | |
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| 130 | ;; |
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| 131 | |
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| 132 | post) |
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| 133 | # IPv6 test, no module loaded, exit if system is not IPv6-ready |
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| 134 | ipv6_test testonly || exit 0 |
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| 135 | |
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| 136 | |
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| 137 | for i in /proc/sys/net/ipv6/conf/* ; do |
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| 138 | interface=${i##*/} |
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| 139 | # Assume Host behaviour |
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| 140 | ipv6_exec_sysctl -w net.ipv6.conf.$interface.forwarding=0 >/dev/null 2>&1 |
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| 141 | |
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| 142 | # Disable autoconfiguration and redirects |
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| 143 | ipv6_exec_sysctl -w net.ipv6.conf.$interface.accept_ra=0 >/dev/null 2>&1 |
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| 144 | ipv6_exec_sysctl -w net.ipv6.conf.$interface.accept_redirects=0 >/dev/null 2>&1 |
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| 145 | done |
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| 146 | |
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| 147 | # Cleanup still existing tunnel devices |
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| 148 | ipv6_cleanup_tunnel_devices |
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| 149 | |
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| 150 | # Shut down generic tunnel interface now |
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| 151 | ipv6_exec_ip link set sit0 down |
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| 152 | ;; |
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| 153 | |
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| 154 | *) |
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| 155 | echo "Usage: $0 $1 {pre|post}" |
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| 156 | ;; |
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| 157 | |
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| 158 | esac |
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| 159 | ;; |
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| 160 | |
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| 161 | restart|reload) |
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| 162 | # do nothing, will be handled by main script |
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| 163 | ;; |
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| 164 | |
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| 165 | showsysctl) |
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| 166 | # Run only basic tests, no module is loaded, if not ok, skip IPv6 initialization |
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| 167 | ipv6_test testonly || exit 0 |
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| 168 | |
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| 169 | # Show sysctl switches |
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| 170 | sysctl net.ipv6.conf.default |awk -F '.' '{ print gensub(" =.*","","G",$5) }' | while read switch; do |
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| 171 | for i in /proc/sys/net/ipv6/conf/* ; do |
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| 172 | interface=${i##*/} |
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| 173 | sysctl net.ipv6.conf.$interface.$switch |
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| 174 | done |
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| 175 | echo |
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| 176 | done |
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| 177 | ;; |
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| 178 | |
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| 179 | *) |
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| 180 | echo $"Usage: $0 {start|stop|reload|restart|showsysctl}" |
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| 181 | exit 1 |
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| 182 | ;; |
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| 183 | esac |
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