79 lines
1.7 KiB
Plaintext
79 lines
1.7 KiB
Plaintext
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# set classless routes based on the format specified in RFC3442
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# e.g.:
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# new_rfc3442_classless_static_routes='24 192 168 10 192 168 1 1 8 10 10 17 66 41'
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# specifies the routes:
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# 192.168.10.0/24 via 192.168.1.1
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# 10.0.0.0/8 via 10.10.17.66.41
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RUN="yes"
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if [ "$RUN" = "yes" ]; then
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if [ -n "$new_rfc3442_classless_static_routes" ]; then
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if [ "$reason" = "BOUND" ] || [ "$reason" = "REBOOT" ]; then
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set -- $new_rfc3442_classless_static_routes
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while [ $# -gt 0 ]; do
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net_length=$1
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via_arg=''
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case $net_length in
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32|31|30|29|28|27|26|25)
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if [ $# -lt 9 ]; then
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return 1
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fi
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net_address="${2}.${3}.${4}.${5}"
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gateway="${6}.${7}.${8}.${9}"
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shift 9
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;;
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24|23|22|21|20|19|18|17)
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if [ $# -lt 8 ]; then
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return 1
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fi
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net_address="${2}.${3}.${4}.0"
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gateway="${5}.${6}.${7}.${8}"
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shift 8
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;;
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16|15|14|13|12|11|10|9)
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if [ $# -lt 7 ]; then
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return 1
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fi
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net_address="${2}.${3}.0.0"
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gateway="${4}.${5}.${6}.${7}"
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shift 7
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;;
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8|7|6|5|4|3|2|1)
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if [ $# -lt 6 ]; then
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return 1
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fi
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net_address="${2}.0.0.0"
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gateway="${3}.${4}.${5}.${6}"
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shift 6
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;;
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0) # default route
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if [ $# -lt 5 ]; then
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return 1
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fi
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net_address="0.0.0.0"
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gateway="${2}.${3}.${4}.${5}"
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shift 5
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;;
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*) # error
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return 1
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;;
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esac
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# take care of link-local routes
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if [ "${gateway}" != '0.0.0.0' ]; then
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via_arg="via ${gateway}"
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fi
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# set route (ip detects host routes automatically)
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ip -4 route add "${net_address}/${net_length}" \
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${via_arg} dev "${interface}" >/dev/null 2>&1
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done
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fi
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fi
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fi
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