[1108] | 1 | #!/bin/sh |
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| 2 | # |
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| 3 | # network-functions-ipv6 |
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| 4 | # |
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| 5 | # Taken from: network-functions-ipv6 |
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| 6 | # (P) & (C) 1997-2005 by Peter Bieringer <pb@bieringer.de> |
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| 7 | # |
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| 8 | # You will find more information on the initscripts-ipv6 homepage at |
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| 9 | # http://www.deepspace6.net/projects/initscripts-ipv6.html |
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| 10 | # |
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| 11 | # Version: 2006-08-03 |
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| 12 | # |
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| 13 | # |
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| 14 | |
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| 15 | |
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| 16 | |
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| 17 | |
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| 18 | |
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| 19 | |
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| 20 | ##### Logging function |
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| 21 | # $1: <message> : message string |
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| 22 | # $2: [stdout|stderr].[err|warn[ing]|inf[o]|notice] : log level with optional channel, default is "stdout.notice" |
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| 23 | # [syslog.[facility.].err|warn[ing]|inf[o]|notice : syslog channel, default is "syslog.user.notice" |
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| 24 | # $3: <function name> : name of function which calls this log function, can be empty using "" |
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| 25 | # return code: 0=ok 1=argument error 3=major problem |
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| 26 | ipv6_log() { |
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| 27 | local message="$1" |
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| 28 | local level="$2" |
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| 29 | local name="$3" |
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| 30 | |
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| 31 | if [ -z "$message" ]; then |
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| 32 | echo $"ERROR: [ipv6_log] Missing 'message' (arg 1)" >/dev/stderr |
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| 33 | return 1 |
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| 34 | fi |
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| 35 | if [ -z "$level" ]; then |
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| 36 | local level="stdout.notice" |
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| 37 | fi |
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| 38 | |
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| 39 | |
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| 40 | # Map loglevel now |
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| 41 | local fn=1 |
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| 42 | local fnawk="print \$$fn" |
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| 43 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
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| 44 | |
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| 45 | # Check channel, if given |
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| 46 | case $t in |
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| 47 | 'stdout'|'stderr'|'syslog') |
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| 48 | local channel="$t" |
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| 49 | local fn=$[ $fn + 1 ] |
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| 50 | ;; |
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| 51 | *) |
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| 52 | local channel="stdout" |
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| 53 | ;; |
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| 54 | esac |
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| 55 | |
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| 56 | # Check syslog facilty, if given |
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| 57 | if [ "$channel" = "syslog" ]; then |
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| 58 | local fnawk="print \$$fn" |
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| 59 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
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| 60 | case $t in |
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| 61 | 'local0'|'local1'|'local2'|'local3'|'local4'|'local5'|'local6'|'local7'|'daemon') |
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| 62 | local facility="$t" |
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| 63 | local fn=$[ $fn + 1 ] |
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| 64 | ;; |
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| 65 | *) |
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| 66 | local facility="user" |
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| 67 | ;; |
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| 68 | esac |
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| 69 | fi |
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| 70 | |
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| 71 | local fnawk="print \$$fn" |
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| 72 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
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| 73 | |
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| 74 | # Map priority |
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| 75 | [ "$t" = "inf" ] && local t="info" |
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| 76 | [ "$t" = "deb" ] && local t="debug" |
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| 77 | [ "$t" = "warning" ] && local t="warn" |
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| 78 | [ "$t" = "error" ] && local t="err" |
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| 79 | [ "$t" = "critical" ] && local t="crit" |
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| 80 | |
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| 81 | # Check priority, if given |
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| 82 | case $t in |
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| 83 | 'info'|'debug'|'notice'|'warn'|'err'|'crit') |
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| 84 | local priority="$t" |
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| 85 | local fn=$[ $fn + 1 ] |
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| 86 | ;; |
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| 87 | *) |
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| 88 | local priority="notice" |
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| 89 | ;; |
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| 90 | esac |
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| 91 | |
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| 92 | local fnawk="print \$$fn" |
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| 93 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
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| 94 | if [ -n "$t" ]; then |
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| 95 | echo $"ERROR: [ipv6_log] Loglevel isn't valid '$level' (arg 2)" >/dev/stderr |
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| 96 | return 1 |
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| 97 | fi |
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| 98 | |
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| 99 | # Generate function text |
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| 100 | if [ -z "$name" ]; then |
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| 101 | local txt_name="" |
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| 102 | else |
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| 103 | local txt_name="[$name]" |
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| 104 | fi |
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| 105 | |
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| 106 | # Log message |
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| 107 | case $channel in |
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| 108 | 'stdout'|'stderr') |
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| 109 | # Generate level text |
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| 110 | case $priority in |
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| 111 | 'debug') |
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| 112 | local txt_level=$"DEBUG " |
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| 113 | ;; |
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| 114 | 'err') |
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| 115 | local txt_level=$"ERROR " |
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| 116 | ;; |
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| 117 | 'warn') |
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| 118 | local txt_level=$"WARN " |
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| 119 | ;; |
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| 120 | 'crit') |
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| 121 | local txt_level=$"CRITICAL " |
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| 122 | ;; |
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| 123 | 'info') |
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| 124 | local txt_level=$"INFO " |
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| 125 | ;; |
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| 126 | 'notice') |
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| 127 | local txt_level=$"NOTICE " |
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| 128 | ;; |
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| 129 | esac |
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| 130 | |
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| 131 | [ -n "$txt_name" ] && local txt_name="$txt_name " |
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| 132 | |
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| 133 | if [ "$channel" = "stderr" ]; then |
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| 134 | echo "$txt_level: ${txt_name}${message}" >/dev/stderr |
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| 135 | elif [ "$channel" = "stdout" ]; then |
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| 136 | echo "$txt_level: ${txt_name}${message}" |
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| 137 | fi |
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| 138 | ;; |
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| 139 | 'syslog') |
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| 140 | # note: logger resides in /usr/bin, but not used by default |
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| 141 | if ! [ -x logger ]; then |
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| 142 | echo $"ERROR: [ipv6_log] Syslog is chosen, but binary 'logger' doesn't exist or isn't executable" >/dev/stderr |
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| 143 | return 3 |
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| 144 | fi |
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| 145 | if [ -z "$txt_name" ]; then |
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| 146 | logger -p $facility.$priority $message |
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| 147 | else |
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| 148 | logger -p $facility.$priority -t "$txt_name" "$message" |
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| 149 | fi |
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| 150 | ;; |
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| 151 | *) |
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| 152 | echo $"ERROR: [ipv6_log] Cannot log to channel '$channel'" >/dev/stderr |
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| 153 | return 3 |
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| 154 | ;; |
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| 155 | esac |
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| 156 | |
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| 157 | return 0 |
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| 158 | } |
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| 159 | |
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| 160 | |
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[2573] | 161 | ###### Beginning of main code here, always executed on "source|. /etc/sysconfig/network-scripts/network-functions-ipv6" |
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[1108] | 162 | |
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| 163 | |
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| 164 | |
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| 165 | ###### End of main code here |
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| 166 | |
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| 167 | |
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| 168 | ##### Test for IPv6 capabilites |
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| 169 | # $1: (optional) testflag: currently supported: "testonly" (do not load a module) |
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| 170 | # return code: 0=ok 2=IPv6 test fails |
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| 171 | ipv6_test() { |
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| 172 | local fn="ipv6_test" |
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| 173 | |
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| 174 | local testflag=$1 |
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| 175 | |
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| 176 | if ! [ -f /proc/net/if_inet6 ]; then |
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| 177 | if [ "$testflag" = "testonly" ]; then |
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| 178 | return 2 |
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| 179 | else |
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| 180 | modprobe ipv6 |
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| 181 | |
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| 182 | if ! [ -f /proc/net/if_inet6 ]; then |
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| 183 | # ipv6_log $"Kernel is not compiled with IPv6 support" crit $fn |
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| 184 | return 2 |
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| 185 | fi |
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| 186 | fi |
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| 187 | fi |
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| 188 | |
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| 189 | if ! [ -d /proc/sys/net/ipv6/conf/ ]; then |
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| 190 | return 2 |
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| 191 | fi |
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| 192 | |
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| 193 | if ! [ -x /sbin/ip ]; then |
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| 194 | ipv6_log $"Utility 'ip' (package: iproute) doesn't exist or isn't executable - stop" crit $fn |
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| 195 | return 2 |
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| 196 | fi |
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| 197 | |
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| 198 | if ! [ -x /sbin/sysctl ]; then |
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| 199 | ipv6_log $"Utility 'sysctl' (package: procps) doesn't exist or isn't executable - stop" crit $fn |
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| 200 | return 2 |
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| 201 | fi |
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| 202 | |
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| 203 | return 0 |
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| 204 | } |
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| 205 | |
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| 206 | |
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| 207 | ##### Get version of this function library |
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| 208 | # stdout: <version number YYYYMMDD> |
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| 209 | getversion_ipv6_functions() { |
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| 210 | local version_ipv6_functions="`cat /etc/sysconfig/network-scripts/network-functions-ipv6 | LC_ALL=C grep "^# Version:" | awk '{ print $3 }' | sed 's/-//g' | sed 's/[A-Za-z]*$//g'`" |
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| 211 | echo $version_ipv6_functions |
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| 212 | return 0 |
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| 213 | } |
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| 214 | |
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| 215 | |
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| 216 | ##### Wrapper for used binaries |
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| 217 | ## ifconfig |
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| 218 | # $*: <arguments...> |
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| 219 | # return code: result of execution |
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| 220 | ipv6_exec_ifconfig() { |
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| 221 | local fn="ipv6_exec_ifconfig" |
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| 222 | |
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| 223 | local options=$* |
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| 224 | |
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| 225 | LC_ALL=C /sbin/ifconfig $options |
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| 226 | |
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| 227 | return $? |
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| 228 | } |
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| 229 | |
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| 230 | |
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| 231 | ## route |
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| 232 | # $*: <arguments...> |
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| 233 | # return code: result of execution |
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| 234 | ipv6_exec_route() { |
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| 235 | local options=$* |
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| 236 | |
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| 237 | LC_ALL=C /sbin/route $options |
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| 238 | |
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| 239 | return $? |
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| 240 | } |
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| 241 | |
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| 242 | |
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| 243 | ## ip |
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| 244 | # $*: <arguments...> |
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| 245 | # return code: result of execution |
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| 246 | ipv6_exec_ip() { |
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| 247 | local options=$* |
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| 248 | |
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| 249 | LC_ALL=C /sbin/ip $options |
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| 250 | |
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| 251 | return $? |
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| 252 | } |
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| 253 | |
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| 254 | |
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| 255 | ## sysctl |
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| 256 | # $*: <arguments...> |
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| 257 | # return code: result of execution |
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| 258 | ipv6_exec_sysctl() { |
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| 259 | local options=$* |
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| 260 | |
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| 261 | LC_ALL=C /sbin/sysctl -e $options |
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| 262 | |
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| 263 | return $? |
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| 264 | } |
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| 265 | |
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| 266 | |
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| 267 | ##### Control IPv6 forwarding |
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| 268 | |
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| 269 | # Control IPv6 forwarding |
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| 270 | # $1: yes|no|on|off : control value |
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| 271 | # $2: [<interface>] : (optional), if not given, global IPv6 forwarding is set [OBSOLETE] |
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| 272 | # return code: 0=ok 1=argument error 2=IPv6 test fails |
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| 273 | ipv6_control_forwarding() { |
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| 274 | local fn="ipv6_control_forwarding" |
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| 275 | |
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| 276 | local fw_control=$1 |
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| 277 | local fw_device=$2 # maybe empty |
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| 278 | |
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| 279 | if [ -z "$fw_control" ]; then |
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| 280 | ipv6_log $"Missing parameter 'forwarding control' (arg 1)" err $fn |
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| 281 | return 1 |
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| 282 | fi |
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| 283 | |
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| 284 | if ! [ "$fw_control" = "yes" -o "$fw_control" = "no" -o "$fw_control" = "on" -o "$fw_control" = "off" ]; then |
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| 285 | ipv6_log $"Forwarding control parameter isn't valid '$fw_control' (arg 1)" err $fn |
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| 286 | return 1 |
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| 287 | fi |
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| 288 | |
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| 289 | ipv6_test || return 2 |
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| 290 | |
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| 291 | if [ "$fw_control" = "yes" -o "$fw_control" = "on" ]; then |
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| 292 | local status=1 |
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| 293 | else |
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| 294 | local status=0 |
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| 295 | fi |
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| 296 | |
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| 297 | # Global control? (if no device is given) |
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| 298 | if [ -z "$fw_device" ]; then |
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| 299 | ipv6_exec_sysctl -w net.ipv6.conf.all.forwarding=$status >/dev/null 2>&1 |
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| 300 | fi |
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| 301 | |
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| 302 | # Per device control (not implemented in kernel) |
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| 303 | if [ -n "$fw_device" ]; then |
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| 304 | ipv6_log $"IPv6 forwarding per device cannot be controlled via sysctl - use netfilter6 instead" warn $fn |
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| 305 | fi |
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| 306 | |
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| 307 | return 0 |
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| 308 | } |
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| 309 | |
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| 310 | |
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| 311 | ##### Static IPv6 route configuration |
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| 312 | |
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| 313 | # Set static IPv6 route |
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| 314 | # $1: <IPv6 network> : to route |
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| 315 | # $2: <IPv6 gateway> : over which $1 should be routed (if "::", gw will be skipped) |
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| 316 | # $3: [<Interface>] : (optional) |
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| 317 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem adding route |
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| 318 | ipv6_add_route() { |
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| 319 | local fn="ipv6_add_route" |
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| 320 | |
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| 321 | local networkipv6=$1 |
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| 322 | local gatewayipv6=$2 |
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| 323 | local device=$3 # maybe empty |
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| 324 | |
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| 325 | if [ -z "$networkipv6" ]; then |
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| 326 | ipv6_log $"Missing parameter 'IPv6-network' (arg 1)" err $fn |
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| 327 | return 1 |
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| 328 | fi |
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| 329 | |
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| 330 | if [ -z "$gatewayipv6" ]; then |
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| 331 | ipv6_log $"Missing parameter 'IPv6-gateway' (arg 2)" err $fn |
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| 332 | return 1 |
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| 333 | fi |
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| 334 | |
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| 335 | ipv6_test || return 2 |
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| 336 | |
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| 337 | ipv6_test_ipv6_addr_valid $networkipv6 || return 2 |
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| 338 | ipv6_test_ipv6_addr_valid $gatewayipv6 || return 2 |
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| 339 | |
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| 340 | if [ -z "$device" ]; then |
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| 341 | local returntxt="`ipv6_exec_ip -6 route add $networkipv6 via $gatewayipv6 metric 1 2>&1`" |
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| 342 | else |
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| 343 | if [ "$gatewayipv6" = "::" ]; then |
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| 344 | local returntxt="`ipv6_exec_ip -6 route add $networkipv6 dev $device metric 1 2>&1`" |
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| 345 | else |
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| 346 | local returntxt="`ipv6_exec_ip -6 route add $networkipv6 via $gatewayipv6 dev $device metric 1 2>&1`" |
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| 347 | fi |
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| 348 | fi |
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| 349 | |
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| 350 | if [ -n "$returntxt" ]; then |
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| 351 | if echo $returntxt | LC_ALL=C grep -q "File exists"; then |
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| 352 | # Netlink: "File exists" |
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| 353 | true |
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| 354 | elif echo $returntxt | LC_ALL=C grep -q "No route to host"; then |
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| 355 | # Netlink: "No route to host" |
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| 356 | ipv6_log $"'No route to host' adding route '$networkipv6' via gateway '$gatewayipv6' through device '$device'" warn $fn |
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| 357 | return 3 |
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| 358 | else |
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| 359 | ipv6_log $"Unknown error" warn $fn |
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| 360 | return 3 |
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| 361 | fi |
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| 362 | fi |
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| 363 | |
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| 364 | return 0 |
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| 365 | } |
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| 366 | |
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| 367 | |
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| 368 | # Delete a static IPv6 route |
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| 369 | # $1: <IPv6 network> : to route |
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| 370 | # $2: <IPv6 gateway> : over which $1 should be routed (if "::", gw will be skipped) |
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| 371 | # $3: [<Interface>] : (optional) |
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| 372 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem adding route |
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| 373 | ipv6_del_route() { |
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| 374 | local fn="ipv6_del_route" |
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| 375 | |
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| 376 | local networkipv6=$1 |
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| 377 | local gatewayipv6=$2 |
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| 378 | local device=$3 # maybe empty |
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| 379 | |
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| 380 | if [ -z "$networkipv6" ]; then |
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| 381 | ipv6_log $"Missing parameter 'IPv6-network' (arg 1)" err $fn |
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| 382 | return 1 |
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| 383 | fi |
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| 384 | |
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| 385 | if [ -z "$gatewayipv6" ]; then |
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| 386 | ipv6_log $"Missing parameter 'IPv6-gateway' (arg 2)" err $fn |
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| 387 | return 1 |
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| 388 | fi |
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| 389 | |
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| 390 | ipv6_test testonly || return 2 |
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| 391 | |
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| 392 | # Test, whether given IPv6 address is valid |
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| 393 | ipv6_test_ipv6_addr_valid $networkipv6 || return 1 |
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| 394 | ipv6_test_ipv6_addr_valid $gatewayipv6 || return 1 |
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| 395 | |
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| 396 | if [ -z "$device" ]; then |
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| 397 | ipv6_exec_ip -6 route del $networkipv6 via $gatewayipv6 |
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| 398 | local result=$? |
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| 399 | else |
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| 400 | if [ "$gatewayipv6" = "::" ]; then |
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| 401 | ipv6_exec_ip -6 route del $networkipv6 dev $device |
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| 402 | local result=$? |
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| 403 | else |
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| 404 | ipv6_exec_ip -6 route del $networkipv6 via $gatewayipv6 dev $device |
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| 405 | local result=$? |
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| 406 | fi |
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| 407 | fi |
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| 408 | |
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| 409 | if [ $result -eq 2 ]; then |
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| 410 | # Netlink: "No such process" |
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| 411 | true |
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| 412 | elif [ $result -ne 0 ]; then |
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| 413 | return 3 |
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| 414 | fi |
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| 415 | |
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| 416 | return 0 |
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| 417 | } |
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| 418 | |
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| 419 | |
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| 420 | # Delete all static IPv6 routes through a given interface |
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| 421 | # $1: <Interface> |
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| 422 | # $2: [<Gateway>] : to match (optional) |
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| 423 | # return code: 0=ok 1=argument error 2=IPv6 test fails |
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| 424 | ipv6_cleanup_routes() { |
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| 425 | local fn="ipv6_cleanup_routes" |
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| 426 | |
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| 427 | local device=$1 |
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| 428 | local gatewaymatch=$2 |
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| 429 | |
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| 430 | if [ -z "$device" ]; then |
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| 431 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
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| 432 | return 1 |
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| 433 | fi |
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| 434 | |
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| 435 | ipv6_test testonly || return 2 |
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| 436 | |
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| 437 | if [ -n "$gatewaymatch" ]; then |
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| 438 | # Get all IPv6 routes (except default link-local and multicast) through given interface via a given gateway and remove them |
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| 439 | ipv6_exec_ip -6 route show dev $device via $gatewaymatch | LC_ALL=C grep -v -w expires | LC_ALL=C egrep -v "^fe80::/64|^ff00::/8" | while read ipv6net dummy; do |
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| 440 | ipv6_del_route $ipv6net $gatewaymatch $device |
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| 441 | done |
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| 442 | else |
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| 443 | # Get all IPv6 routes (except default link-local and multicast) through given interface and remove them |
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| 444 | ipv6_exec_ip -6 route show dev $device | LC_ALL=C grep -v -w expires | LC_ALL=C egrep -v "^fe80::/64|^ff00::/8" | while read ipv6net dummy; do |
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| 445 | ipv6_del_route $ipv6net :: $device |
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| 446 | done |
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| 447 | fi |
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| 448 | |
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| 449 | return 0 |
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| 450 | } |
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| 451 | |
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| 452 | |
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| 453 | ##### automatic tunneling configuration |
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| 454 | |
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| 455 | ## Configure automatic tunneling up |
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| 456 | # return code: 0=ok 2=IPv6 test fails 3=major problem |
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| 457 | ipv6_enable_autotunnel() { |
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| 458 | local fn="ipv6_enable_autotunnel" |
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| 459 | |
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| 460 | ipv6_test || return 2 |
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| 461 | |
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| 462 | # enable IPv6-over-IPv4 tunnels |
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| 463 | if ipv6_test_device_status sit0; then |
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| 464 | true |
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| 465 | else |
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| 466 | # bring up basic tunnel device |
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| 467 | ipv6_exec_ip link set sit0 up |
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| 468 | |
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| 469 | if ! ipv6_test_device_status sit0; then |
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| 470 | ipv6_log $"Tunnel device 'sit0' enabling didn't work" err $fn |
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| 471 | return 3 |
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| 472 | fi |
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| 473 | |
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| 474 | # Set sysctls proper (regardless "default") |
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| 475 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.forwarding=1 >/dev/null 2>&1 |
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| 476 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_ra=0 >/dev/null 2>&1 |
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| 477 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_redirects=0 >/dev/null 2>&1 |
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| 478 | fi |
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| 479 | |
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| 480 | return 0 |
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| 481 | } |
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| 482 | |
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| 483 | |
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| 484 | ## Configure automatic tunneling down |
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| 485 | # return code: 0=ok 2=IPv6 test fails 3=major problem |
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| 486 | ipv6_disable_autotunnel() { |
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| 487 | local fn="ipv6_disable_autotunnel" |
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| 488 | |
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| 489 | ipv6_test testonly || return 2 |
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| 490 | |
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| 491 | if ipv6_test_device_status sit0; then |
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| 492 | |
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| 493 | # disable IPv6-over-IPv4 tunnels (if a tunnel is no longer up) |
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| 494 | if ipv6_exec_ip -6 route show dev sit0 | LC_ALL=C grep -w via | awk '{ print $3 }' | LC_ALL=C grep -v -q "^::$"; then |
---|
| 495 | # still existing routes, skip shutdown of sit0 |
---|
| 496 | true |
---|
| 497 | elif ipv6_exec_ip -6 -o addr show dev sit0 | awk '{ print $4 }' | LC_ALL=C grep -v -q '^::'; then |
---|
| 498 | # still existing IPv6 addresses, skip shutdown of sit0 |
---|
| 499 | true |
---|
| 500 | else |
---|
| 501 | # take down basic tunnel device |
---|
| 502 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.forwarding=0 >/dev/null 2>&1 |
---|
| 503 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_ra=0 >/dev/null 2>&1 |
---|
| 504 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_redirects=0 >/dev/null 2>&1 |
---|
| 505 | |
---|
| 506 | ipv6_exec_ip link set sit0 down |
---|
| 507 | |
---|
| 508 | if ipv6_test_device_status sit0; then |
---|
| 509 | ipv6_log $"Tunnel device 'sit0' is still up" err $fn |
---|
| 510 | return 3 |
---|
| 511 | fi |
---|
| 512 | fi |
---|
| 513 | fi |
---|
| 514 | |
---|
| 515 | return 0 |
---|
| 516 | } |
---|
| 517 | |
---|
| 518 | |
---|
| 519 | ##### Interface configuration |
---|
| 520 | |
---|
| 521 | ## Add an IPv6 address for given interface |
---|
| 522 | # $1: <Interface> |
---|
| 523 | # $2: <IPv6 address[/prefix]> |
---|
| 524 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 525 | ipv6_add_addr_on_device() { |
---|
| 526 | local fn="ipv6_add_addr_on_device" |
---|
| 527 | |
---|
| 528 | local device=$1 |
---|
| 529 | local address=$2 |
---|
| 530 | |
---|
| 531 | if [ -z "$device" ]; then |
---|
| 532 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 533 | return 1 |
---|
| 534 | fi |
---|
| 535 | |
---|
| 536 | if [ -z "$address" ]; then |
---|
| 537 | ipv6_log $"Missing parameter 'IPv6-address' (arg 2)" err $fn |
---|
| 538 | return 1 |
---|
| 539 | fi |
---|
| 540 | |
---|
| 541 | ipv6_test || return 2 |
---|
| 542 | |
---|
| 543 | ipv6_test_ipv6_addr_valid $address || return 1 |
---|
| 544 | |
---|
| 545 | ipv6_test_device_status $device |
---|
| 546 | local result=$? |
---|
| 547 | |
---|
| 548 | if [ "$result" = "0" ]; then |
---|
| 549 | true |
---|
| 550 | elif [ "$result" != "11" ]; then |
---|
| 551 | ipv6_log $"Device '$device' doesn't exist" err $fn |
---|
| 552 | return 3 |
---|
| 553 | else |
---|
| 554 | ipv6_exec_ip link set $device up |
---|
| 555 | |
---|
| 556 | if ! ipv6_test_device_status $device; then |
---|
| 557 | ipv6_log $"Device '$device' enabling didn't work" err $fn |
---|
| 558 | return 3 |
---|
| 559 | fi |
---|
| 560 | fi |
---|
| 561 | |
---|
| 562 | # Extract address parts |
---|
| 563 | local prefixlength_implicit="`echo $address | awk -F/ '{ print $2 }'`" |
---|
| 564 | local address_implicit="`echo $address | awk -F/ '{ print $1 }'`" |
---|
| 565 | |
---|
| 566 | # Check prefix length and using '64' as default |
---|
| 567 | if [ -z "$prefixlength_implicit" ]; then |
---|
| 568 | local prefixlength_implicit="64" |
---|
| 569 | local address="$address_implicit/$prefixlength_implicit" |
---|
| 570 | fi |
---|
| 571 | |
---|
| 572 | ipv6_exec_ip -6 addr add $address dev $device |
---|
| 573 | local result=$? |
---|
| 574 | |
---|
| 575 | if [ $result -eq 2 ]; then |
---|
| 576 | return 0 |
---|
| 577 | elif [ $result -ne 0 ]; then |
---|
| 578 | ipv6_log $"Cannot add IPv6 address '$address' on dev '$device'" err $fn |
---|
| 579 | return 3 |
---|
| 580 | fi |
---|
| 581 | |
---|
| 582 | return 0 |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | |
---|
| 586 | ## Remove all IPv6 routes and addresses on given interface (cleanup to prevent kernel crashes) |
---|
| 587 | # $1: <Interface> |
---|
| 588 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 589 | ipv6_cleanup_device() { |
---|
| 590 | local fn="ipv6_cleanup_device" |
---|
| 591 | |
---|
| 592 | local device=$1 |
---|
| 593 | |
---|
| 594 | if [ -z "$device" ]; then |
---|
| 595 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 596 | return 1 |
---|
| 597 | fi |
---|
| 598 | |
---|
| 599 | ipv6_test testonly || return 2 |
---|
| 600 | |
---|
| 601 | # Remove all IPv6 routes through this device (but not "lo") |
---|
| 602 | if [ "$device" != "lo" ]; then |
---|
| 603 | ipv6_exec_ip -6 route flush dev $device scope global >/dev/null 2>&1 |
---|
| 604 | ipv6_exec_ip -6 route flush dev $device scope site >/dev/null 2>&1 |
---|
| 605 | fi |
---|
| 606 | |
---|
| 607 | # Remove all IPv6 addresses on this interface |
---|
| 608 | ipv6_exec_ip -6 addr flush dev $device scope global >/dev/null 2>&1 |
---|
| 609 | ipv6_exec_ip -6 addr flush dev $device scope site >/dev/null 2>&1 |
---|
| 610 | |
---|
| 611 | return 0 |
---|
| 612 | } |
---|
| 613 | |
---|
| 614 | |
---|
| 615 | ## Remove all IPv6 6to4 related routes and addresses on given interface |
---|
| 616 | # $1: <Interface> |
---|
| 617 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 618 | ipv6_cleanup_6to4_device() { |
---|
| 619 | local fn="ipv6_cleanup_6to4_device" |
---|
| 620 | |
---|
| 621 | local device=$1 |
---|
| 622 | |
---|
| 623 | if [ -z "$device" ]; then |
---|
| 624 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 625 | return 1 |
---|
| 626 | fi |
---|
| 627 | |
---|
| 628 | ipv6_test testonly || return 2 |
---|
| 629 | |
---|
| 630 | # Cleanup 6to4 addresses on this device |
---|
| 631 | ipv6_exec_ip -6 addr show dev $dev scope global permanent | LC_ALL=C grep -w inet6 | awk '{ print $2}' | LC_ALL=C grep "^2002:" | while read addr; do |
---|
| 632 | ipv6_del_addr_on_device ${dev} ${addr} |
---|
| 633 | done |
---|
| 634 | |
---|
| 635 | # Get all IPv6 routes through given interface related to 6to4 and remove them |
---|
| 636 | ipv6_exec_ip -6 route show dev $device | LC_ALL=C grep "^2002:" | while read ipv6net dummy; do |
---|
| 637 | ipv6_del_route $ipv6net :: $device |
---|
| 638 | done |
---|
| 639 | |
---|
| 640 | return 0 |
---|
| 641 | } |
---|
| 642 | |
---|
| 643 | |
---|
| 644 | ## Remove an IPv6 address on given interface |
---|
| 645 | # $1: <Interface> |
---|
| 646 | # $2: <IPv6 address> |
---|
| 647 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 648 | ipv6_del_addr_on_device() { |
---|
| 649 | local fn="ipv6_del_addr_on_device" |
---|
| 650 | |
---|
| 651 | local device=$1 |
---|
| 652 | local address=$2 |
---|
| 653 | |
---|
| 654 | if [ -z "$device" ]; then |
---|
| 655 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 656 | return 1 |
---|
| 657 | fi |
---|
| 658 | |
---|
| 659 | if [ -z "$address" ]; then |
---|
| 660 | ipv6_log $"Missing parameter 'IPv6 address' (arg 2)" err $fn |
---|
| 661 | return 1 |
---|
| 662 | fi |
---|
| 663 | |
---|
| 664 | ipv6_test testonly || return 2 |
---|
| 665 | |
---|
| 666 | ipv6_test_ipv6_addr_valid $address || return 1 |
---|
| 667 | |
---|
| 668 | # Extract address parts |
---|
| 669 | local prefixlength_implicit="`echo $address | awk -F/ '{ print $2 }'`" |
---|
| 670 | local address_implicit="`echo $address | awk -F/ '{ print $1 }'`" |
---|
| 671 | |
---|
| 672 | # Check prefix length and using '64' as default |
---|
| 673 | if [ -z "$prefixlength_implicit" ]; then |
---|
| 674 | local prefixlength_implicit="64" |
---|
| 675 | local address="$address_implicit/$prefixlength_implicit" |
---|
| 676 | fi |
---|
| 677 | |
---|
| 678 | ipv6_exec_ip -6 addr del $address dev $device |
---|
| 679 | local result=$? |
---|
| 680 | |
---|
| 681 | if [ $result -eq 2 ]; then |
---|
| 682 | return 0 |
---|
| 683 | elif [ $result -ne 0 ]; then |
---|
| 684 | ipv6_log $"Cannot delete IPv6 address '$address' on dev '$device'" err $fn |
---|
| 685 | return 3 |
---|
| 686 | fi |
---|
| 687 | |
---|
| 688 | return 0 |
---|
| 689 | } |
---|
| 690 | |
---|
| 691 | |
---|
| 692 | ##### Some address test functions |
---|
| 693 | |
---|
| 694 | ## Test a given IPv6 address for validity |
---|
| 695 | # $1: <IPv6 address> |
---|
| 696 | # $2: [quiet] : (optional) don't display error message |
---|
| 697 | # return code: 0=ok 1=argument error 10=not valid |
---|
| 698 | ipv6_test_ipv6_addr_valid() { |
---|
| 699 | local fn="ipv6_test_ipv6_addr_valid" |
---|
| 700 | |
---|
| 701 | local testipv6addr_valid=$1 |
---|
| 702 | local modequiet=$2 |
---|
| 703 | |
---|
| 704 | if [ -z "$testipv6addr_valid" ]; then |
---|
| 705 | return 1 |
---|
| 706 | fi |
---|
| 707 | if [ -n "$modequiet" ]; then |
---|
| 708 | if [ "$modequiet" != "quiet" ]; then |
---|
| 709 | ipv6_log $"Parameter '$modequiet' for 'quiet' mode is not valid (arg 2)" err $fn |
---|
| 710 | return 1 |
---|
| 711 | fi |
---|
| 712 | fi |
---|
| 713 | |
---|
| 714 | # Extract parts |
---|
| 715 | local prefixlength_implicit="`echo $testipv6addr_valid | awk -F/ '{ print $2 }'`" |
---|
| 716 | local address_implicit="`echo $testipv6addr_valid | awk -F/ '{ print $1 }'`" |
---|
| 717 | |
---|
| 718 | # Test for a valid format |
---|
| 719 | if ! echo "$address_implicit" | LC_ALL=C egrep -q '^[[:xdigit:]:.]*$'; then |
---|
| 720 | if [ "$modequiet" != "quiet" ]; then |
---|
| 721 | ipv6_log $"Given IPv6 address '$testipv6addr_valid' is not valid" err $fn |
---|
| 722 | fi |
---|
| 723 | return 10 |
---|
| 724 | fi |
---|
| 725 | |
---|
| 726 | # Test for prefix length |
---|
| 727 | if [ -z "$prefixlength_implicit" ]; then |
---|
| 728 | if echo "$testipv6addr_valid" | LC_ALL=C grep "/$"; then |
---|
| 729 | # Trailing "/", but no value |
---|
| 730 | if [ "$modequiet" != "quiet" ]; then |
---|
| 731 | ipv6_log $"Missing prefix length for given address '$testipv6addr_valid'" err $fn |
---|
| 732 | fi |
---|
| 733 | return 10 |
---|
| 734 | else |
---|
| 735 | return 0 |
---|
| 736 | fi |
---|
| 737 | elif [ $prefixlength_implicit -lt 0 -o $prefixlength_implicit -gt 128 ]; then |
---|
| 738 | if [ "$modequiet" != "quiet" ]; then |
---|
| 739 | ipv6_log $"On given address '$testipv6addr_valid' the prefix length is out of range (valid: 0-128)" err $fn |
---|
| 740 | fi |
---|
| 741 | return 10 |
---|
| 742 | fi |
---|
| 743 | |
---|
| 744 | return 0 |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | |
---|
| 748 | ## Test a given IPv4 address for validity |
---|
| 749 | # $1: <IPv4 address> |
---|
| 750 | # $2: [quiet] : (optional) don't display error message |
---|
| 751 | # return code: 0=ok 1=argument error 10=not valid |
---|
| 752 | ipv6_test_ipv4_addr_valid() { |
---|
| 753 | local fn="ipv6_test_ipv4_addr_valid" |
---|
| 754 | |
---|
| 755 | local testipv4addr_valid=$1 |
---|
| 756 | local modequiet=$2 |
---|
| 757 | |
---|
| 758 | if [ -z "$testipv4addr_valid" ]; then |
---|
| 759 | return 1 |
---|
| 760 | fi |
---|
| 761 | if [ -n "$modequiet" ]; then |
---|
| 762 | if [ "$modequiet" != "quiet" ]; then |
---|
| 763 | ipv6_log $"Parameter '$modequiet' for 'quiet' mode is not valid (arg 2)" err $fn |
---|
| 764 | return 1 |
---|
| 765 | fi |
---|
| 766 | fi |
---|
| 767 | |
---|
| 768 | # Test for a valid format |
---|
| 769 | if echo "$testipv4addr_valid" | LC_ALL=C egrep -q -v '^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$'; then |
---|
| 770 | if [ "$modequiet" != "quiet" ]; then |
---|
| 771 | ipv6_log $"Given IPv4 address '$testipv4addr_valid' has no proper format" err $fn |
---|
| 772 | fi |
---|
| 773 | return 10 |
---|
| 774 | fi |
---|
| 775 | |
---|
| 776 | # Test for valid IPv4 address parts |
---|
| 777 | local number1="`echo $testipv4addr_valid | awk -F. '{ print $1 }'`" |
---|
| 778 | local number2="`echo $testipv4addr_valid | awk -F. '{ print $2 }'`" |
---|
| 779 | local number3="`echo $testipv4addr_valid | awk -F. '{ print $3 }'`" |
---|
| 780 | local number4="`echo $testipv4addr_valid | awk -F. '{ print $4 }'`" |
---|
| 781 | local c=1 |
---|
| 782 | for number in "$number1" "$number2" "$number3" "$number4"; do |
---|
| 783 | if [ $number -lt 0 -o $number -gt 255 ]; then |
---|
| 784 | if [ "$modequiet" != "quiet" ]; then |
---|
| 785 | ipv6_log $"Part $c of given IPv4 address '$testipv4addr_valid' is out of range" err $fn |
---|
| 786 | fi |
---|
| 787 | return 10 |
---|
| 788 | fi |
---|
| 789 | local c=$[ $c + 1 ] |
---|
| 790 | done |
---|
| 791 | |
---|
| 792 | return 0 |
---|
| 793 | } |
---|
| 794 | |
---|
| 795 | |
---|
| 796 | ## Test a given IPv4 address for not a private but unicast one |
---|
| 797 | # $1: <IPv4 address> |
---|
| 798 | # return code: 0=ok 1=argument error 10=private or not unicast |
---|
| 799 | ipv6_test_ipv4_addr_global_usable() { |
---|
| 800 | local fn="ipv6_test_ipv4_addr_global_usable" |
---|
| 801 | |
---|
| 802 | local testipv4addr_globalusable=$1 |
---|
| 803 | |
---|
| 804 | |
---|
| 805 | if [ -z "$testipv4addr_globalusable" ]; then |
---|
| 806 | return 1 |
---|
| 807 | fi |
---|
| 808 | |
---|
| 809 | # Test for a globally usable IPv4 address now |
---|
| 810 | # test 0.0.0.0/8 |
---|
| 811 | /bin/ipcalc --network $testipv4addr_globalusable 255.0.0.0 | LC_ALL=C grep -q "NETWORK=0\.0\.0\.0" && return 10 |
---|
| 812 | # test 10.0.0.0/8 (RFC 1918 / private) |
---|
| 813 | /bin/ipcalc --network $testipv4addr_globalusable 255.0.0.0 | LC_ALL=C grep -q "NETWORK=10\.0\.0\.0" && return 10 |
---|
| 814 | # test 127.0.0.0/8 (loopback) |
---|
| 815 | /bin/ipcalc --network $testipv4addr_globalusable 255.0.0.0 | LC_ALL=C grep -q "NETWORK=127\.0\.0\.0" && return 10 |
---|
| 816 | # test 169.254.0.0/16 (APIPA / DHCP link local) |
---|
| 817 | /bin/ipcalc --network $testipv4addr_globalusable 255.255.0.0 | LC_ALL=C grep -q "NETWORK=169\.254\.0\.0" && return 10 |
---|
| 818 | # test 172.16.0.0/12 (RFC 1918 / private) |
---|
| 819 | /bin/ipcalc --network $testipv4addr_globalusable 255.240.0.0 | LC_ALL=C grep -q "NETWORK=172\.16\.0\.0" && return 10 |
---|
| 820 | # test 192.168.0.0/16 (RFC 1918 / private) |
---|
| 821 | /bin/ipcalc --network $testipv4addr_globalusable 255.255.0.0 | LC_ALL=C grep -q "NETWORK=192\.168\.0\.0" && return 10 |
---|
| 822 | # test 224.0.0.0/3 (multicast and reserved, broadcast) |
---|
| 823 | /bin/ipcalc --network $testipv4addr_globalusable 224.0.0.0 | LC_ALL=C grep -q "NETWORK=224\.0\.0\.0" && return 10 |
---|
| 824 | |
---|
| 825 | return 0 |
---|
| 826 | } |
---|
| 827 | |
---|
| 828 | |
---|
| 829 | ## Test a given device for status |
---|
| 830 | # $1: <Interface> |
---|
| 831 | # return code: 0=ok 1=argument error 10=not exists 11=down |
---|
| 832 | ipv6_test_device_status() { |
---|
| 833 | local fn="ipv6_test_device_status" |
---|
| 834 | |
---|
| 835 | local device=$1 |
---|
| 836 | |
---|
| 837 | if [ -z "$device" ]; then |
---|
| 838 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 839 | return 1 |
---|
| 840 | fi |
---|
| 841 | |
---|
| 842 | # Test if device exists |
---|
| 843 | if [ ! -d "/sys/class/net/${device}" ]; then |
---|
| 844 | # not exists |
---|
| 845 | return 10 |
---|
| 846 | fi |
---|
| 847 | |
---|
| 848 | # Test if device is up |
---|
| 849 | if ipv6_exec_ip link show dev $device 2>/dev/null | LC_ALL=C grep -q "UP"; then |
---|
| 850 | # up |
---|
| 851 | return 0 |
---|
| 852 | else |
---|
| 853 | # down |
---|
| 854 | return 11 |
---|
| 855 | fi |
---|
| 856 | } |
---|
| 857 | |
---|
| 858 | |
---|
| 859 | ## Create 6to4 prefix |
---|
| 860 | # $1: <IPv4 address> |
---|
| 861 | # stdout: <6to4address> |
---|
| 862 | # return code: 0=ok 1=argument error |
---|
| 863 | ipv6_create_6to4_prefix() { |
---|
| 864 | local fn="ipv6_create_6to4_prefix" |
---|
| 865 | |
---|
| 866 | local ipv4addr=$1 |
---|
| 867 | |
---|
| 868 | if [ -z "$ipv4addr" ]; then |
---|
| 869 | ipv6_log $"Missing parameter 'IPv4 address' (arg 1)" stderr.err $fn |
---|
| 870 | fi |
---|
| 871 | |
---|
| 872 | local major1="`echo $ipv4addr | awk -F. '{ print $1 }'`" |
---|
| 873 | local minor1="`echo $ipv4addr | awk -F. '{ print $2 }'`" |
---|
| 874 | local major2="`echo $ipv4addr | awk -F. '{ print $3 }'`" |
---|
| 875 | local minor2="`echo $ipv4addr | awk -F. '{ print $4 }'`" |
---|
| 876 | |
---|
| 877 | if [ -z "$major1" -o -z "$minor1" -o -z "$major2" -o -z "$minor2" ]; then |
---|
| 878 | return 1 |
---|
| 879 | fi |
---|
| 880 | |
---|
| 881 | if [ $major1 -eq 0 ]; then |
---|
| 882 | local block1="`printf "%x" $minor1`" |
---|
| 883 | else |
---|
| 884 | local block1="`printf "%x%02x" $major1 $minor1`" |
---|
| 885 | fi |
---|
| 886 | if [ $major2 -eq 0 ]; then |
---|
| 887 | local block2="`printf "%x" $minor2`" |
---|
| 888 | else |
---|
| 889 | local block2="`printf "%x%02x" $major2 $minor2`" |
---|
| 890 | fi |
---|
| 891 | |
---|
| 892 | local prefix6to4="2002:$block1:$block2" |
---|
| 893 | |
---|
| 894 | echo "$prefix6to4" |
---|
| 895 | return 0 |
---|
| 896 | } |
---|
| 897 | |
---|
| 898 | |
---|
| 899 | ## Check and create 6to4 tunnel relay address |
---|
| 900 | # $1: <IPv4 address|IPv6to4 address> |
---|
| 901 | # stdout: <tunnel relay address> |
---|
| 902 | # return code: 0=ok 1=argument error |
---|
| 903 | ipv6_create_6to4_relay_address() { |
---|
| 904 | local fn="ipv6_create_6to4_relay_address" |
---|
| 905 | |
---|
| 906 | local addr=$1 |
---|
| 907 | |
---|
| 908 | if [ -z "$addr" ]; then |
---|
| 909 | ipv6_log $"Missing parameter 'address' (arg 1)" stderr.err $fn |
---|
| 910 | return 1 |
---|
| 911 | fi |
---|
| 912 | |
---|
| 913 | # Check |
---|
| 914 | if ipv6_test_ipv4_addr_valid $addr quiet; then |
---|
| 915 | # ok, a IPv4 one |
---|
| 916 | if ipv6_test_ipv4_addr_global_usable $addr; then |
---|
| 917 | # IPv4 globally usable |
---|
| 918 | local ipv6to4_relay="::$addr" |
---|
| 919 | else |
---|
| 920 | ipv6_log $"Given address '$addr' is not a global IPv4 one (arg 1)" stderr.err $fn |
---|
| 921 | return 1 |
---|
| 922 | fi |
---|
| 923 | else |
---|
| 924 | ipv6_log $"Given address '$addr' is not a valid IPv4 one (arg 1)" stderr.err $fn |
---|
| 925 | return 1 |
---|
| 926 | fi |
---|
| 927 | |
---|
| 928 | echo "$ipv6to4_relay" |
---|
| 929 | |
---|
| 930 | return 0 |
---|
| 931 | } |
---|
| 932 | |
---|
| 933 | |
---|
| 934 | ##### 6to4 tunneling setup |
---|
| 935 | |
---|
| 936 | ## Configure 6to4 tunneling up |
---|
| 937 | # $1: <Interface> : only "tun6to4" is supported |
---|
| 938 | # $2: <IPv4 address> : global IPv4 address of interface (will be used to generate 6to4 prefix) |
---|
| 939 | # $3: [<IPv6 suffix>] : for 6to4 prefix (optional, default is "::1") |
---|
| 940 | # $4: [<MTU>] : MTU of tunnel device (optional, default is automatic) |
---|
| 941 | # $5: [<IPv4 address>] : local IPv4 address of tunnel interface (required in case of 6to4 behind NAT) |
---|
| 942 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 943 | ipv6_add_6to4_tunnel() { |
---|
| 944 | local fn="ipv6_add_6to4_tunnel" |
---|
| 945 | |
---|
| 946 | local device=$1 |
---|
| 947 | local globalipv4=$2 |
---|
| 948 | local globalipv6to4suffix=$3 |
---|
| 949 | local mtu=$4 |
---|
| 950 | local localipv4=$5 |
---|
| 951 | |
---|
| 952 | if [ -z "$device" ]; then |
---|
| 953 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 954 | return 1 |
---|
| 955 | fi |
---|
| 956 | |
---|
| 957 | if [ -z "$globalipv4" ]; then |
---|
| 958 | ipv6_log $"Missing parameter 'global IPv4 address' (arg 2)" err $fn |
---|
| 959 | return 1 |
---|
| 960 | fi |
---|
| 961 | |
---|
| 962 | # Check device |
---|
| 963 | if [ "$device" != "tun6to4" ]; then |
---|
| 964 | ipv6_log $"Given device '$device' is not supported (arg 1)" err $fn |
---|
| 965 | return 1 |
---|
| 966 | fi |
---|
| 967 | |
---|
| 968 | # Copy global IPv4 address to local if last one is not given |
---|
| 969 | if [ -z "$localipv4" ]; then |
---|
| 970 | localipv4="$globalipv4" |
---|
| 971 | fi |
---|
| 972 | |
---|
| 973 | ipv6_test || return 2 |
---|
| 974 | |
---|
| 975 | # Generate 6to4 address |
---|
| 976 | local prefix6to4="`ipv6_create_6to4_prefix $globalipv4`" |
---|
| 977 | if [ $? -ne 0 -o -z "$prefix6to4" ]; then |
---|
| 978 | return 3 |
---|
| 979 | fi |
---|
| 980 | |
---|
| 981 | if [ -z "$globalipv6to4suffix" ]; then |
---|
| 982 | local address6to4="${prefix6to4}::1/16" |
---|
| 983 | else |
---|
| 984 | local address6to4="${prefix6to4}::${globalipv6to4suffix}/16" |
---|
| 985 | fi |
---|
| 986 | |
---|
| 987 | ipv6_add_tunnel_device tun6to4 0.0.0.0 $address6to4 $localipv4 |
---|
| 988 | if [ $? -ne 0 ]; then |
---|
| 989 | local retval=3 |
---|
| 990 | else |
---|
| 991 | local retval=0 |
---|
| 992 | fi |
---|
| 993 | |
---|
| 994 | # Add unspecific unreachable route for local 6to4 address space |
---|
| 995 | ipv6_exec_ip route add unreach ${prefix6to4}::/48 |
---|
| 996 | |
---|
| 997 | # Set MTU, if given |
---|
| 998 | if [ -n "$mtu" ]; then |
---|
| 999 | ipv6_set_mtu $device $mtu |
---|
| 1000 | fi |
---|
| 1001 | |
---|
| 1002 | return $retval |
---|
| 1003 | } |
---|
| 1004 | |
---|
| 1005 | |
---|
| 1006 | ## Configure all 6to4 tunneling down |
---|
| 1007 | # $1: <Interface> : only "tun6to4" is supported |
---|
| 1008 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1009 | ipv6_cleanup_6to4_tunnels() { |
---|
| 1010 | local fn="ipv6_cleanup_6to4_tunnels" |
---|
| 1011 | |
---|
| 1012 | local device=$1 |
---|
| 1013 | |
---|
| 1014 | if [ -z "$device" ]; then |
---|
| 1015 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 1016 | return 1 |
---|
| 1017 | fi |
---|
| 1018 | |
---|
| 1019 | # Check device |
---|
| 1020 | if [ "$device" != "tun6to4" ]; then |
---|
| 1021 | ipv6_log $"Given device '$device' is not supported (arg 1)" err $fn |
---|
| 1022 | return 1 |
---|
| 1023 | fi |
---|
| 1024 | |
---|
| 1025 | ipv6_test testonly || return 2 |
---|
| 1026 | |
---|
| 1027 | ipv6_del_tunnel_device tun6to4 |
---|
| 1028 | |
---|
| 1029 | # Remove all unspecific unreachable routes for local 6to4 address space |
---|
| 1030 | ipv6_exec_ip -6 route | LC_ALL=C grep "^unreachable 2002:" | LC_ALL=C grep "/48 dev lo" | while read token net rest; do |
---|
| 1031 | ipv6_exec_ip route del unreach $net |
---|
| 1032 | done |
---|
| 1033 | |
---|
| 1034 | return 0 |
---|
| 1035 | } |
---|
| 1036 | |
---|
| 1037 | |
---|
| 1038 | ## Configure 6to4 tunneling down |
---|
| 1039 | # $1: <Interface> : only "tun6to4" is supported |
---|
| 1040 | # $2: <IPv4 address> : global address of local interface |
---|
| 1041 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1042 | ipv6_del_6to4_tunnel() { |
---|
| 1043 | local fn="ipv6_del_6to4_tunnel" |
---|
| 1044 | |
---|
| 1045 | local device=$1 |
---|
| 1046 | local localipv4=$2 |
---|
| 1047 | |
---|
| 1048 | if [ -z "$device" ]; then |
---|
| 1049 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 1050 | return 1 |
---|
| 1051 | fi |
---|
| 1052 | |
---|
| 1053 | if [ -z "$localipv4" ]; then |
---|
| 1054 | ipv6_log $"Missing parameter 'local IPv4 address' (arg 2)" err $fn |
---|
| 1055 | return 1 |
---|
| 1056 | fi |
---|
| 1057 | |
---|
| 1058 | # Check device |
---|
| 1059 | if [ "$device" != "tun6to4" ]; then |
---|
| 1060 | ipv6_log $"Given device '$device' is not supported (arg 1)" err $fn |
---|
| 1061 | return 1 |
---|
| 1062 | fi |
---|
| 1063 | |
---|
| 1064 | ipv6_test || return 2 |
---|
| 1065 | |
---|
| 1066 | ipv6_del_tunnel_device tun6to4 |
---|
| 1067 | local retval=$? |
---|
| 1068 | |
---|
| 1069 | # Remove unspecific unreachable route for local 6to4 address space |
---|
| 1070 | ipv6_exec_ip route del unreach ${prefix6to4}::/48 |
---|
| 1071 | |
---|
| 1072 | return $retval |
---|
| 1073 | } |
---|
| 1074 | |
---|
| 1075 | |
---|
| 1076 | ## Configure a static tunnel device up |
---|
| 1077 | # $1: <Interface> |
---|
| 1078 | # $2: <IPv4 address> : of foreign tunnel |
---|
| 1079 | # $3: [<IPv6 address>] : local one of a P-t-P tunnel (optional) |
---|
| 1080 | # $4: [<IPv4 address>] : local one of tunnel (optional) |
---|
| 1081 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1082 | ipv6_add_tunnel_device() { |
---|
| 1083 | local fn="ipv6_add_tunnel_device" |
---|
| 1084 | |
---|
| 1085 | local device=$1 |
---|
| 1086 | local addressipv4tunnel=$2 |
---|
| 1087 | local addressipv6local=$3 |
---|
| 1088 | local addressipv4tunnellocal=$4 |
---|
| 1089 | |
---|
| 1090 | if [ -z "$device" ]; then |
---|
| 1091 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 1092 | return 1 |
---|
| 1093 | fi |
---|
| 1094 | |
---|
| 1095 | if [ -z "$addressipv4tunnel" ]; then |
---|
| 1096 | ipv6_log $"Missing parameter 'IPv4-tunnel address' (arg 2)" err $fn |
---|
| 1097 | return 1 |
---|
| 1098 | fi |
---|
| 1099 | |
---|
| 1100 | if [ -z "$addressipv4tunnellocal" ]; then |
---|
| 1101 | local addressipv4tunnellocal="any" |
---|
| 1102 | fi |
---|
| 1103 | |
---|
| 1104 | ipv6_test || return 2 |
---|
| 1105 | |
---|
| 1106 | if ! ipv6_test_device_status $device; then |
---|
| 1107 | local ttldefault="`ipv6_exec_sysctl net.ipv4.ip_default_ttl | awk '{ print $3 }'`" |
---|
| 1108 | if [ -z "$ttldefault" ]; then |
---|
| 1109 | local ttldefault=64 |
---|
| 1110 | fi |
---|
| 1111 | |
---|
| 1112 | # Test whether remote IPv4 address was already applied to another tunnel |
---|
| 1113 | if [ "$addressipv4tunnel" != "0.0.0.0" -a "$addressipv4tunnel" != "any" ]; then |
---|
| 1114 | ipv6_exec_ip tunnel show remote $addressipv4tunnel 2>/dev/null | LC_ALL=C grep -w "ipv6/ip" | while IFS=":" read devnew rest; do |
---|
| 1115 | if [ "$devnew" != "$device" ]; then |
---|
| 1116 | ipv6_log $"Given remote address '$addressipv4tunnel' on tunnel device '$device' is already configured on device '$devnew'" err $fn |
---|
| 1117 | return 3 |
---|
| 1118 | fi |
---|
| 1119 | done |
---|
| 1120 | fi |
---|
| 1121 | |
---|
| 1122 | ipv6_exec_ip tunnel add $device mode sit ttl $ttldefault remote $addressipv4tunnel local $addressipv4tunnellocal |
---|
| 1123 | if [ $? -ne 0 ]; then |
---|
| 1124 | return 3 |
---|
| 1125 | fi |
---|
| 1126 | |
---|
| 1127 | # Test, whether "ip tunnel show" reports valid content |
---|
| 1128 | if ! ipv6_exec_ip tunnel show $device 2>/dev/null | LC_ALL=C grep -q -w "remote"; then |
---|
| 1129 | ipv6_log $"Tunnel device '$device' creation didn't work" err $fn |
---|
| 1130 | return 3 |
---|
| 1131 | fi |
---|
| 1132 | |
---|
| 1133 | ipv6_exec_ip link set $device up |
---|
| 1134 | |
---|
| 1135 | if ! ipv6_test_device_status $device; then |
---|
| 1136 | ipv6_log $"Tunnel device '$device' bringing up didn't work" err $fn |
---|
| 1137 | return 3 |
---|
| 1138 | fi |
---|
| 1139 | |
---|
| 1140 | # Set sysctls proper (regardless "default") |
---|
| 1141 | ipv6_exec_sysctl -w net.ipv6.conf.$device.forwarding=1 >/dev/null 2>&1 |
---|
| 1142 | ipv6_exec_sysctl -w net.ipv6.conf.$device.accept_ra=0 >/dev/null 2>&1 |
---|
| 1143 | ipv6_exec_sysctl -w net.ipv6.conf.$device.accept_redirects=0 >/dev/null 2>&1 |
---|
| 1144 | |
---|
| 1145 | if [ -n "$addressipv6local" ]; then |
---|
| 1146 | # Setup P-t-P address |
---|
| 1147 | ipv6_add_addr_on_device $device $addressipv6local |
---|
| 1148 | if [ $? -ne 0 ]; then |
---|
| 1149 | return 3 |
---|
| 1150 | fi |
---|
| 1151 | fi |
---|
| 1152 | else |
---|
| 1153 | false |
---|
| 1154 | fi |
---|
| 1155 | |
---|
| 1156 | return 0 |
---|
| 1157 | } |
---|
| 1158 | |
---|
| 1159 | |
---|
| 1160 | ## Configure a static tunnel device down |
---|
| 1161 | # $1: <Interface> |
---|
| 1162 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1163 | ipv6_del_tunnel_device() { |
---|
| 1164 | local fn="ipv6_del_tunnel_device" |
---|
| 1165 | |
---|
| 1166 | local device=$1 |
---|
| 1167 | |
---|
| 1168 | if [ -z "$device" ]; then |
---|
| 1169 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 1170 | return 1 |
---|
| 1171 | fi |
---|
| 1172 | |
---|
| 1173 | ipv6_test testonly || return 2 |
---|
| 1174 | |
---|
| 1175 | if ipv6_test_device_status $device; then |
---|
| 1176 | ipv6_cleanup_device $device |
---|
| 1177 | else |
---|
| 1178 | if [ "$device" != "sit0" ]; then |
---|
| 1179 | false |
---|
| 1180 | fi |
---|
| 1181 | fi |
---|
| 1182 | |
---|
| 1183 | if [ "$device" != "sit0" ]; then |
---|
| 1184 | if ipv6_exec_ip tunnel show $device 2>/dev/null | LC_ALL=C grep -q -w "ipv6/ip"; then |
---|
| 1185 | ipv6_exec_ip tunnel del $device |
---|
| 1186 | |
---|
| 1187 | if ipv6_test_device_status $device; then |
---|
| 1188 | return 3 |
---|
| 1189 | fi |
---|
| 1190 | else |
---|
| 1191 | false |
---|
| 1192 | fi |
---|
| 1193 | fi |
---|
| 1194 | |
---|
| 1195 | return 0 |
---|
| 1196 | } |
---|
| 1197 | |
---|
| 1198 | |
---|
| 1199 | ## Cleanup all dedicated tunnel devices |
---|
| 1200 | ipv6_cleanup_tunnel_devices() { |
---|
| 1201 | local fn="ipv6_cleanup_tunnel_devices" |
---|
| 1202 | |
---|
| 1203 | ipv6_test testonly || return 2 |
---|
| 1204 | |
---|
| 1205 | # Find still existing tunnel devices and shutdown and delete them |
---|
| 1206 | |
---|
| 1207 | ipv6_exec_ip tunnel show | LC_ALL=C grep -w "ipv6/ip" | awk -F: '{ print $1 }' | while read device; do |
---|
| 1208 | ipv6_del_tunnel_device $device |
---|
| 1209 | done |
---|
| 1210 | |
---|
| 1211 | return 0 |
---|
| 1212 | } |
---|
| 1213 | |
---|
| 1214 | |
---|
| 1215 | ## Get address of a dedicated tunnel |
---|
| 1216 | # $1: <Interface> |
---|
| 1217 | # $2: local|remote : local or remote address |
---|
| 1218 | # stdout: <IPv4 address> if available |
---|
| 1219 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1220 | ipv6_get_ipv4addr_of_tunnel() { |
---|
| 1221 | local fn="ipv6_get_local_ipv4_of_tunnel" |
---|
| 1222 | |
---|
| 1223 | local device=$1 |
---|
| 1224 | local selection=$2 |
---|
| 1225 | |
---|
| 1226 | if [ -z "$device" ]; then |
---|
| 1227 | ipv6_log $"Missing parameter 'device' (arg 1)" stderr.err $fn |
---|
| 1228 | return 1 |
---|
| 1229 | fi |
---|
| 1230 | |
---|
| 1231 | if [ -z "$selection" ]; then |
---|
| 1232 | ipv6_log $"Missing parameter 'selection' (arg 2)" stderr.err $fn |
---|
| 1233 | return 1 |
---|
| 1234 | fi |
---|
| 1235 | if [ "$selection" != "local" -a "$selection" != "remote" ]; then |
---|
| 1236 | ipv6_log $"Unsupported selection '$selection' specified (arg 2)" stderr.err $fn |
---|
| 1237 | return 1 |
---|
| 1238 | fi |
---|
| 1239 | |
---|
| 1240 | ipv6_test testonly || return 2 |
---|
| 1241 | |
---|
| 1242 | ipv6_test_device_status $device |
---|
| 1243 | |
---|
| 1244 | if [ $? != 0 -a $? != 11 ]; then |
---|
| 1245 | # Device doesn't exist |
---|
| 1246 | return 3 |
---|
| 1247 | fi |
---|
| 1248 | |
---|
| 1249 | # Device exists, retrieve address |
---|
| 1250 | if [ "$selection" = "local" ]; then |
---|
| 1251 | local tunnel_local_ipv4addr="`ipv6_exec_ip tunnel show $device | awk '{ print $6 }'`" |
---|
| 1252 | elif [ "$selection" = "remote" ]; then |
---|
| 1253 | local tunnel_local_ipv4addr="`ipv6_exec_ip tunnel show $device | awk '{ print $4 }'`" |
---|
| 1254 | fi |
---|
| 1255 | |
---|
| 1256 | if [ $? != 0 ]; then |
---|
| 1257 | return 3 |
---|
| 1258 | fi |
---|
| 1259 | |
---|
| 1260 | if [ "$tunnel_local_ipv4addr" = "any" ]; then |
---|
| 1261 | local tunnel_local_ipv4addr="0.0.0.0" |
---|
| 1262 | fi |
---|
| 1263 | |
---|
| 1264 | echo "$tunnel_local_ipv4addr" |
---|
| 1265 | |
---|
| 1266 | return 0 |
---|
| 1267 | } |
---|
| 1268 | |
---|
| 1269 | |
---|
| 1270 | ## Get IPv4 address of a device |
---|
| 1271 | # $1: <Interface> |
---|
| 1272 | # stdout: <IPv4 address> if available |
---|
| 1273 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem (more than one IPv4 address applied) |
---|
| 1274 | ipv6_get_ipv4addr_of_device() { |
---|
| 1275 | local fn="ipv6_get_ipv4addr_of_device" |
---|
| 1276 | |
---|
| 1277 | local device=$1 |
---|
| 1278 | |
---|
| 1279 | if [ -z "$device" ]; then |
---|
| 1280 | ipv6_log $"Missing parameter 'device' (arg 1)" stderr.err $fn |
---|
| 1281 | return 1 |
---|
| 1282 | fi |
---|
| 1283 | |
---|
| 1284 | ipv6_test_device_status $device |
---|
| 1285 | |
---|
| 1286 | if [ $? != 0 -a $? != 11 ]; then |
---|
| 1287 | # Device doesn't exist |
---|
| 1288 | return 3 |
---|
| 1289 | fi |
---|
| 1290 | |
---|
| 1291 | # Device exists, retrieve the first address only |
---|
| 1292 | local ipv4addr="`ipv6_exec_ip -o -4 addr show dev $device | awk '{ print $4 }' | awk -F/ '{ print $1; exit }'`" |
---|
| 1293 | |
---|
| 1294 | if [ $? != 0 ]; then |
---|
| 1295 | return 3 |
---|
| 1296 | fi |
---|
| 1297 | |
---|
| 1298 | if [ "$ipv4addr" = "any" ]; then |
---|
| 1299 | local ipv4addr="0.0.0.0" |
---|
| 1300 | fi |
---|
| 1301 | |
---|
| 1302 | echo "$ipv4addr" |
---|
| 1303 | |
---|
| 1304 | return 0 |
---|
| 1305 | } |
---|
| 1306 | |
---|
| 1307 | |
---|
| 1308 | ## Set IPv6 MTU for a device |
---|
| 1309 | # $1: <Interface> |
---|
| 1310 | # $2: <IPv6 MTU> |
---|
| 1311 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1312 | ipv6_set_mtu() { |
---|
| 1313 | local fn="ipv6_set_mtu" |
---|
| 1314 | |
---|
| 1315 | local device=$1 |
---|
| 1316 | local ipv6_mtu=$2 |
---|
| 1317 | |
---|
| 1318 | if [ -z "$device" ]; then |
---|
| 1319 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 1320 | return 1 |
---|
| 1321 | fi |
---|
| 1322 | |
---|
| 1323 | if [ -z "$ipv6_mtu" ]; then |
---|
| 1324 | ipv6_log $"Missing parameter 'IPv6 MTU' (arg 2)" err $fn |
---|
| 1325 | return 1 |
---|
| 1326 | fi |
---|
| 1327 | |
---|
| 1328 | # Check range |
---|
| 1329 | if [ $ipv6_mtu -lt 1280 -o $ipv6_mtu -gt 65535 ]; then |
---|
| 1330 | ipv6_log $"Given IPv6 MTU '$ipv6_mtu' is out of range" err $fn |
---|
| 1331 | return 1 |
---|
| 1332 | fi |
---|
| 1333 | |
---|
| 1334 | ipv6_test testonly || return 2 |
---|
| 1335 | |
---|
| 1336 | # Check whether key exists |
---|
| 1337 | ipv6_exec_sysctl net.ipv6.conf.$device.mtu >/dev/null 2>&1 |
---|
| 1338 | if [ $? -ne 0 ]; then |
---|
| 1339 | return 3 |
---|
| 1340 | fi |
---|
| 1341 | |
---|
| 1342 | # Set value |
---|
| 1343 | ipv6_exec_sysctl -w net.ipv6.conf.$device.mtu=$ipv6_mtu >/dev/null 2>&1 |
---|
| 1344 | |
---|
| 1345 | return 0 |
---|
| 1346 | } |
---|
| 1347 | |
---|
| 1348 | |
---|
| 1349 | ## Set a default route |
---|
| 1350 | # $1: <IPv6 address> : gateway, can also contain scope suffix (device name), cause a warning if not matching with $2 (but will have precedence) |
---|
| 1351 | # $2: <gateway device>: gateway device (optional in case of $1 is a global address or $1 contains scope suffix) |
---|
| 1352 | # $3: <check device>: (optional) device to check scope and gateway device against (setup is skipped, if not matching) |
---|
| 1353 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1354 | ipv6_set_default_route() { |
---|
| 1355 | local fn="ipv6_set_default_route" |
---|
| 1356 | |
---|
| 1357 | local address=$1 |
---|
| 1358 | local device=$2 |
---|
| 1359 | local device_check=$3 |
---|
| 1360 | |
---|
| 1361 | ipv6_test testonly || return 2 |
---|
| 1362 | |
---|
| 1363 | # Map the unspecified address to nothing |
---|
| 1364 | if [ "$address" = "::" ]; then |
---|
| 1365 | local address="" |
---|
| 1366 | fi |
---|
| 1367 | |
---|
| 1368 | if [ -n "$address" ]; then |
---|
| 1369 | local addressgw=`echo $address | awk -F% '{ print $1 }'` |
---|
| 1370 | local device_scope=`echo $address | awk -F% '{ print $2 }'` |
---|
| 1371 | |
---|
| 1372 | if [ -z "$addressgw" ]; then |
---|
| 1373 | ipv6_log $"Given IPv6 default gateway '$address' is not in proper format" err $fn |
---|
| 1374 | return 3 |
---|
| 1375 | fi |
---|
| 1376 | |
---|
| 1377 | # Scope device has precedence |
---|
| 1378 | if [ -n "$device_scope" -a -n "$device" -a "$device_scope" != "$device" ]; then |
---|
| 1379 | ipv6_log $"Given IPv6 default gateway '$address' has scope '$device_scope' defined, given default gateway device '$device' will be not used" inf $fn |
---|
| 1380 | local device="" |
---|
| 1381 | fi |
---|
| 1382 | |
---|
| 1383 | # Link local addresses require a device |
---|
| 1384 | if echo $addressgw | LC_ALL=C grep -qi "^fe80:"; then |
---|
| 1385 | if [ -z "$device_scope" ]; then |
---|
| 1386 | if [ -z "$device" ]; then |
---|
| 1387 | ipv6_log $"Given IPv6 default gateway '$address' is link-local, but no scope or gateway device is specified" err $fn |
---|
| 1388 | return 3 |
---|
| 1389 | fi |
---|
| 1390 | fi |
---|
| 1391 | fi |
---|
| 1392 | |
---|
| 1393 | # Check whether the route belongs to the specific given interface |
---|
| 1394 | if [ -n "$device_check" ]; then |
---|
| 1395 | # Check whether scope device matches given check device |
---|
| 1396 | if [ -n "$device_scope" -a "$device_check" != "$device_scope" ]; then |
---|
| 1397 | # scope device != specific given -> skip |
---|
| 1398 | return 0 |
---|
| 1399 | elif [ -n "$device" -a "$device_check" != "$device" ]; then |
---|
| 1400 | # gateway device != specific given -> skip |
---|
| 1401 | return 0 |
---|
| 1402 | fi |
---|
| 1403 | fi |
---|
| 1404 | |
---|
| 1405 | # Set device now, if not given |
---|
| 1406 | if [ -z "$device" ]; then |
---|
| 1407 | local device="$device_scope" |
---|
| 1408 | fi |
---|
| 1409 | |
---|
| 1410 | if [ -z "$device" ]; then |
---|
| 1411 | # Note: this can cause a warning and a not installed route, if given address is not reachable on the link |
---|
| 1412 | ipv6_add_route ::/0 $addressgw |
---|
| 1413 | else |
---|
| 1414 | ipv6_add_route ::/0 $addressgw $device |
---|
| 1415 | fi |
---|
| 1416 | elif [ -n "$device" ]; then |
---|
| 1417 | # Check whether the route belongs to the specific given interface |
---|
| 1418 | if [ -n "$device_check" -a "$device_check" != "$device" ]; then |
---|
| 1419 | # gateway device != specific given -> skip |
---|
| 1420 | return 0 |
---|
| 1421 | fi |
---|
| 1422 | |
---|
| 1423 | ipv6_test_route_requires_next_hop $device |
---|
| 1424 | local result=$? |
---|
| 1425 | |
---|
| 1426 | if [ $result = 0 ]; then |
---|
| 1427 | ipv6_log $"Given IPv6 default device '$device' requires an explicit nexthop" err $fn |
---|
| 1428 | return 3 |
---|
| 1429 | elif [ $result != 10 ]; then |
---|
| 1430 | ipv6_log $"Given IPv6 default device '$device' doesn't exist or isn't up" err $fn |
---|
| 1431 | return 3 |
---|
| 1432 | fi |
---|
| 1433 | |
---|
| 1434 | ipv6_add_route ::/0 :: $device |
---|
| 1435 | else |
---|
| 1436 | ipv6_log $"No parameters given to setup a default route" err $fn |
---|
| 1437 | return 3 |
---|
| 1438 | fi |
---|
| 1439 | |
---|
| 1440 | return 0 |
---|
| 1441 | } |
---|
| 1442 | |
---|
| 1443 | |
---|
| 1444 | ## Resolve need of explicit next hop for an interface |
---|
| 1445 | # $1: <Interface> |
---|
| 1446 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem 10=needs no explicit hop |
---|
| 1447 | ipv6_test_route_requires_next_hop() { |
---|
| 1448 | local fn="ipv6_test_route_requires_next_hop" |
---|
| 1449 | |
---|
| 1450 | local device=$1 |
---|
| 1451 | |
---|
| 1452 | if [ -z "$device" ]; then |
---|
| 1453 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
| 1454 | return 1 |
---|
| 1455 | fi |
---|
| 1456 | |
---|
| 1457 | ipv6_test testonly || return 2 |
---|
| 1458 | |
---|
| 1459 | ipv6_test_device_status $device |
---|
| 1460 | |
---|
| 1461 | if [ $? != 0 ]; then |
---|
| 1462 | return 3 |
---|
| 1463 | fi |
---|
| 1464 | |
---|
| 1465 | if [ "$device" = "sit0" ]; then |
---|
| 1466 | return 10 |
---|
| 1467 | fi |
---|
| 1468 | |
---|
| 1469 | if ipv6_exec_ip -o link show $device 2>/dev/null | LC_ALL=C grep -q "POINTOPOINT"; then |
---|
| 1470 | return 10 |
---|
| 1471 | fi |
---|
| 1472 | |
---|
| 1473 | return 0 |
---|
| 1474 | } |
---|
| 1475 | |
---|
| 1476 | |
---|
| 1477 | ## Trigger radvd |
---|
| 1478 | # $1: up|down : device reason for triggering (coming up or going down) |
---|
| 1479 | # $2: [startstop|restart|reload|SIGHUP] : triger mechanism (default is "SIGHUP") |
---|
| 1480 | # "startstop" : reason=up -> start, reason=down -> stop |
---|
| 1481 | # $3: [<filename>] : alternative pid file [optional] |
---|
| 1482 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
| 1483 | ipv6_trigger_radvd() { |
---|
| 1484 | local fn="ipv6_trigger_radvd" |
---|
| 1485 | |
---|
| 1486 | local reason=$1 |
---|
| 1487 | local mechanism=$2 |
---|
| 1488 | local pidfile=$3 |
---|
| 1489 | |
---|
| 1490 | if [ -z "$reason" ]; then |
---|
| 1491 | ipv6_log $"No reason given for sending trigger to radvd" err $fn |
---|
| 1492 | return 1 |
---|
| 1493 | fi |
---|
| 1494 | |
---|
| 1495 | if [ "$reason" != "up" -a "$reason" != "down" ]; then |
---|
| 1496 | ipv6_log $"Unsupported reason '$reason' for sending trigger to radvd" err $fn |
---|
| 1497 | return 1 |
---|
| 1498 | fi |
---|
| 1499 | |
---|
| 1500 | if [ -z "$mechanism" ]; then |
---|
| 1501 | # Take default |
---|
| 1502 | local mechanism="SIGHUP" |
---|
| 1503 | fi |
---|
| 1504 | |
---|
| 1505 | if [ -z "$pidfile" ]; then |
---|
| 1506 | local pidfile="/var/run/radvd/radvd.pid" |
---|
| 1507 | fi |
---|
| 1508 | |
---|
| 1509 | # Print message and select action |
---|
| 1510 | case $mechanism in |
---|
| 1511 | 'startstop') |
---|
| 1512 | case $reason in |
---|
| 1513 | up) |
---|
| 1514 | local action="start" |
---|
| 1515 | ;; |
---|
| 1516 | down) |
---|
| 1517 | local action="stop" |
---|
| 1518 | ;; |
---|
| 1519 | esac |
---|
| 1520 | ;; |
---|
| 1521 | 'reload'|'restart'|'SIGHUP') |
---|
| 1522 | local action="$mechanism" |
---|
| 1523 | ;; |
---|
| 1524 | *) |
---|
| 1525 | ipv6_log $"Unsupported mechanism '$mechanism' for sending trigger to radvd" err $fn |
---|
| 1526 | return 3 |
---|
| 1527 | ;; |
---|
| 1528 | esac |
---|
| 1529 | |
---|
| 1530 | # PID file needed? |
---|
| 1531 | if [ "$action" = "SIGHUP" ]; then |
---|
| 1532 | if ! [ -f "$pidfile" ]; then |
---|
| 1533 | if [ "$reason" = "down" ]; then |
---|
| 1534 | # be quiet because triggering may have been disabled |
---|
| 1535 | true |
---|
| 1536 | else |
---|
| 1537 | ipv6_log $"Given pidfile '$pidfile' doesn't exist, cannot send trigger to radvd" err $fn |
---|
| 1538 | fi |
---|
| 1539 | return 3 |
---|
| 1540 | fi |
---|
| 1541 | |
---|
| 1542 | # Get PID |
---|
| 1543 | local pid="`cat $pidfile`" |
---|
| 1544 | if [ -z "$pid" ]; then |
---|
| 1545 | # pidfile empty - strange |
---|
| 1546 | ipv6_log $"Pidfile '$pidfile' is empty, cannot send trigger to radvd" err $fn |
---|
| 1547 | return 3 |
---|
| 1548 | fi |
---|
| 1549 | fi |
---|
| 1550 | |
---|
| 1551 | |
---|
| 1552 | # Do action |
---|
| 1553 | case $action in |
---|
| 1554 | 'SIGHUP') |
---|
| 1555 | kill -HUP $pid |
---|
| 1556 | ;; |
---|
| 1557 | 'reload'|'restart'|'stop'|'start') |
---|
| 1558 | if ! /sbin/chkconfig --list radvd >/dev/null 2>&1; then |
---|
| 1559 | if [ "$reason" = "down" ]; then |
---|
| 1560 | # be quiet because triggering may have been disabled |
---|
| 1561 | true |
---|
| 1562 | else |
---|
| 1563 | ipv6_log $"radvd not (properly) installed, triggering failed" err $fn |
---|
| 1564 | fi |
---|
| 1565 | return 3 |
---|
| 1566 | else |
---|
| 1567 | /sbin/service radvd $action >/dev/null 2>&1 |
---|
| 1568 | fi |
---|
| 1569 | ;; |
---|
| 1570 | *) |
---|
| 1571 | # Normally not reached, "action" is set above to proper value |
---|
| 1572 | ;; |
---|
| 1573 | esac |
---|
| 1574 | |
---|
| 1575 | return 0 |
---|
| 1576 | } |
---|