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117 lines
2.5 KiB
117 lines
2.5 KiB
##
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# retrieve interfaces. I prefer using ip if it is
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# available, else I fallback to ifconfig... don't know
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# how to retrieve this information on other systems.
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# This also exports the environment variables.
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#
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gather_interface_info() {
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[ -z "${NINTERFACES}" ] || return
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local NO=1
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if [ ${IP} ]
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then
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gather_if_info_ip
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else
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if [ ${IFCONFIG} ]
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then
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gather_if_info_ifconfig
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else
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${LOGGER} -p local0.warn 'Found no way to retrieve interface information.'
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fi
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fi
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export NINTERFACES
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while [ ${NO} -le ${NINTERFACES:=0} ]
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do
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export IF${NO}_NAME IF${NO}_MAC IF${NO}_STATE IF${NO}_IPV4 IF${NO}_IPV6
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NO=$((NO+1))
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done
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}
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##
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# get the interface information from the ip tool
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#
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gather_if_info_ip() {
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eval $(${IP} -o link | ${AWK} '{
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sub(/:/,"",$1);
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no=$1;
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sub(/:/,"",$2);
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name=$2;
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for (i=3; i<NF; i++) {
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if ($i == "state") {
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i++; state=$i
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}
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if ($i ~ /link/) {
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i++; mac=$i;
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classes=classes mac " "
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}
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}
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print "IF" no "_NAME=" name ";IF" no "_STATE=" state ";IF" no "_MAC=" mac ";";
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if ("UP" == state) classes=classes mac " "
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}
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BEGIN {
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classes=""
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}
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END {
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print "set_class " classes ";";
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print "NINTERFACES=" FNR ";"
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}')
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eval $(${IP} -o addr | ${AWK} '{
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sub(/:/,"",$1);
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no=$1;
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if ($3 == "inet") {
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sub(/[\/%].*/,"",$4);
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print "IF" no "_IPV4=\"${IF" no "_IPV4}" $4 " \";";
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classes=classes $4 " "
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}
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if ($3 == "inet6") {
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sub(/[\/%].*/,"",$4);
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print "IF" no "_IPV6=\"${IF" no "_IPV6}" $4 " \";";
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classes=classes $4 " "
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}
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}
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BEGIN {
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classes=""
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}
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END {
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print "set_class " classes ";"
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}')
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}
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##
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# get interface data via the ifconfig tool
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# FIXME This is outdated. It does not set classes at all.
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#
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gather_if_info_ifconfig() {
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eval $(${IFCONFIG} -a | ${AWK} '
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/ether/ { mac=$2 }
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/inet / { ipv4=ipv4 $2 " " }
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/inet6/ { ipv6=ipv6 $2 " " }
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/^[^ \t]/ {
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if ("" != ipv4 || "" != ipv6) state="UP"; else state="DOWN";
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if ("" != name) {
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print "IF" no "_NAME=" name ";IF" no "_STATE=" state ";IF" no "_MAC=" mac ";" \
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"IF" no "_IPV4=\"${IF" no "_IPV4}" ipv4 " \";" \
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"IF" no "_IPV6=\"${IF" no "_IPV6}" ipv6 " \";";
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no++;
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}
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ipv4=ipv6="";
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sub(/:/,"",$1);
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name=$1
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}
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BEGIN {
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no=1;
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}
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END {
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if ("" != ipv4 || "" != ipv6) state="UP"; else state="DOWN";
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print "IF" no "_NAME=" name ";IF" no "_STATE=" state ";IF" no "_MAC=" mac ";" \
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"IF" no "_IPV4=\"${IF" no "_IPV4}" ipv4 " \";" \
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"IF" no "_IPV6=\"${IF" no "_IPV6}" ipv6 " \";";
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print "NINTERFACES=" no
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}')
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}
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# vim: set ts=4 sw=4:
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