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352 lines
9.4 KiB
352 lines
9.4 KiB
#!/bin/sh /etc/rc.common
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# Copyright (C) 2008 OpenWrt.org
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START=50
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USE_PROCD=1
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PROG="/usr/sbin/snmpd"
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CONFIGFILE="/var/run/snmpd.conf"
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snmpd_agent_add() {
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local cfg="$1"
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config_get agentaddress "$cfg" agentaddress
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[ -n "$agentaddress" ] || return 0
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echo "agentaddress $agentaddress" >> $CONFIGFILE
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}
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snmpd_agentx_add() {
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local cfg="$1"
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echo "master agentx" >> $CONFIGFILE
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config_get agentxsocket "$cfg" agentxsocket
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[ -n "$agentxsocket" ] && echo "agentXSocket $agentxsocket" >> $CONFIGFILE
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}
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snmpd_system_add() {
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local cfg="$1"
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config_get syslocation "$cfg" sysLocation
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[ -n "$syslocation" ] && echo "sysLocation $syslocation" >> $CONFIGFILE
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config_get syscontact "$cfg" sysContact
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[ -n "$syscontact" ] && echo "sysContact $syscontact" >> $CONFIGFILE
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config_get sysname "$cfg" sysName
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[ -n "$sysname" ] && echo "sysName $sysname" >> $CONFIGFILE
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config_get sysservice "$cfg" sysService
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[ -n "$sysservice" ] && echo "sysService $sysservice" >> $CONFIGFILE
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config_get sysdescr "$cfg" sysDescr
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[ -n "$sysdescr" ] && echo "sysDescr $sysdescr" >> $CONFIGFILE
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config_get sysobjectid "$cfg" sysObjectID
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[ -n "$sysobjectid" ] && echo "sysObjectID $sysobjectid" >> $CONFIGFILE
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}
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snmpd_com2sec_add() {
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local cfg="$1"
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config_get secname "$cfg" secname
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[ -n "$secname" ] || return 0
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config_get source "$cfg" source
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[ -n "$source" ] || return 0
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config_get community "$cfg" community
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[ -n "$community" ] || return 0
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echo "com2sec $secname $source $community" >> $CONFIGFILE
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}
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snmpd_com2sec6_add() {
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local cfg="$1"
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config_get secname "$cfg" secname
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[ -n "$secname" ] || return 0
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config_get source "$cfg" source
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[ -n "$source" ] || return 0
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config_get community "$cfg" community
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[ -n "$community" ] || return 0
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echo "com2sec6 $secname $source $community" >> $CONFIGFILE
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}
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snmpd_group_add() {
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local cfg="$1"
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config_get group "$cfg" group
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[ -n "$group" ] || return 0
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config_get version "$cfg" version
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[ -n "$version" ] || return 0
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config_get secname "$cfg" secname
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[ -n "$secname" ] || return 0
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echo "group $group $version $secname" >> $CONFIGFILE
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}
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snmpd_view_add() {
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local cfg="$1"
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config_get viewname "$cfg" viewname
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[ -n "$viewname" ] || return 0
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config_get type "$cfg" type
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[ -n "$type" ] || return 0
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config_get oid "$cfg" oid
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[ -n "$oid" ] || return 0
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# optional mask
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config_get mask "$cfg" mask
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echo "view $viewname $type $oid $mask" >> $CONFIGFILE
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}
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snmpd_access_add() {
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local cfg="$1"
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config_get group "$cfg" group
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[ -n "$group" ] || return 0
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config_get context "$cfg" context
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[ -n $context ] || return 0
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[ "$context" == "none" ] && context='""'
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config_get version "$cfg" version
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[ -n "$version" ] || return 0
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config_get level "$cfg" level
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[ -n "$level" ] || return 0
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config_get prefix "$cfg" prefix
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[ -n "$prefix" ] || return 0
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config_get read "$cfg" read
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[ -n "$read" ] || return 0
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config_get write "$cfg" write
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[ -n "$write" ] || return 0
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config_get notify "$cfg" notify
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[ -n "$notify" ] || return 0
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echo "access $group $context $version $level $prefix $read $write $notify" >> $CONFIGFILE
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}
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snmpd_trap_hostname_add() {
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local cfg="$1"
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config_get hostname "$cfg" HostName
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config_get port "$cfg" Port
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config_get community "$cfg" Community
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config_get type "$cfg" Type
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echo "$type $hostname $community $port" >> $CONFIGFILE
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}
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snmpd_trap_ip_add() {
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local cfg="$1"
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config_get host_ip "$cfg" HostIP
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config_get port "$cfg" Port
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config_get community "$cfg" Community
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config_get type "$cfg" Type
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echo "$type $host_ip $community $port" >> $CONFIGFILE
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}
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snmpd_access_default_add() {
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local cfg="$1"
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config_get mode "$cfg" Mode
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config_get community "$cfg" CommunityName
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config_get oidrestrict "$cfg" RestrictOID
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config_get oid "$cfg" RestrictedOID
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echo -n "$mode $community default" >> $CONFIGFILE
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[ "$oidrestrict" == "yes" ] && echo " $oid" >> $CONFIGFILE
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[ "$oidrestrict" == "no" ] && echo "" >> $CONFIGFILE
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}
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snmpd_access_HostName_add() {
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local cfg="$1"
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config_get hostname "$cfg" HostName
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config_get mode "$cfg" Mode
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config_get community "$cfg" CommunityName
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config_get oidrestrict "$cfg" RestrictOID
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config_get oid "$cfg" RestrictedOID
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echo -n "$mode $community $hostname" >> $CONFIGFILE
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[ "$oidrestrict" == "yes" ] && echo " $oid" >> $CONFIGFILE
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[ "$oidrestrict" == "no" ] && echo "" >> $CONFIGFILE
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}
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snmpd_access_HostIP_add() {
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local cfg="$1"
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config_get host_ip "$cfg" HostIP
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config_get ip_mask "$cfg" IPMask
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config_get mode "$cfg" Mode
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config_get community "$cfg" CommunityName
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config_get oidrestrict "$cfg" RestrictOID
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config_get oid "$cfg" RestrictedOID
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echo -n "$mode $community $host_ip/$ip_mask" >> $CONFIGFILE
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[ "$oidrestrict" == "yes" ] && echo " $oid" >> $CONFIGFILE
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[ "$oidrestrict" == "no" ] && echo "" >> $CONFIGFILE
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}
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snmpd_pass_add() {
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local cfg="$1"
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local pass='pass'
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config_get miboid "$cfg" miboid
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[ -n "$miboid" ] || return 0
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config_get prog "$cfg" prog
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[ -n "$prog" ] || return 0
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config_get_bool persist "$cfg" persist 0
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[ $persist -ne 0 ] && pass='pass_persist'
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config_get priority "$cfg" priority
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priority=${priority:+-p $priority}
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echo "$pass $priority $miboid $prog" >> $CONFIGFILE
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}
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snmpd_exec_add() {
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local cfg="$1"
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config_get name "$cfg" name
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[ -n "$name" ] || return 0
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config_get prog "$cfg" prog
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[ -n "$prog" ] || return 0
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config_get args "$cfg" args
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config_get miboid "$cfg" miboid
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echo "exec $miboid $name $prog $args" >> $CONFIGFILE
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}
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snmpd_extend_add() {
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local cfg="$1"
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config_get name "$cfg" name
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[ -n "$name" ] || return 0
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config_get prog "$cfg" prog
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[ -n "$prog" ] || return 0
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config_get args "$cfg" args
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config_get miboid "$cfg" miboid
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echo "extend $miboid $name $prog $args" >> $CONFIGFILE
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}
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snmpd_disk_add() {
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local cfg="$1"
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local disk='disk'
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config_get partition "$cfg" partition
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[ -n "$partition" ] || return 0
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config_get size "$cfg" size
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[ -n "$size" ] || return 0
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echo "$disk $partition $size" >> $CONFIGFILE
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}
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snmpd_engineid_add() {
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local cfg="$1"
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config_get engineid "$cfg" engineid
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[ -n "$engineid" ] && echo "engineID $engineid" >> $CONFIGFILE
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config_get engineidtype "$cfg" engineidtype
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[ "$engineidtype" -ge 1 -a "$engineidtype" -le 3 ] && \
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echo "engineIDType $engineidtype" >> $CONFIGFILE
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config_get engineidnic "$cfg" engineidnic
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[ -n "$engineidnic" ] && echo "engineIDNic $engineidnic" >> $CONFIGFILE
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}
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snmpd_sink_add() {
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local cfg="$1"
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local section="$2"
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local community
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local port
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local host
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config_get host "$cfg" host
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[ -n "section" -a -n "$host" ] || return 0
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# optional community
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config_get community "$cfg" community
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# optional port
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config_get port "$cfg" port
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port=${port:+:$port}
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echo "$section $host$port $community" >> $CONFIGFILE
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}
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append_parm() {
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local section="$1"
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local option="$2"
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local switch="$3"
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local _loctmp
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config_get _loctmp "$section" "$option"
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[ -z "$_loctmp" ] && return 0
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echo "$switch $_loctmp" >> $CONFIGFILE
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}
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append_authtrapenable() {
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local section="$1"
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local option="$2"
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local switch="$3"
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local _loctmp
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config_get_bool _loctmp "$section" "$option"
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[ -z "$_loctmp" ] && return 0
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[ "$_loctmp" -gt 0 ] && echo "$switch $_loctmp" >> $CONFIGFILE
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}
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snmpd_setup_fw_rules() {
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local net="$1"
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local zone
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zone=$(fw3 -q network "$net" 2>/dev/null)
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local handled_zone
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for handled_zone in $HANDLED_SNMP_ZONES; do
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[ "$handled_zone" = "$zone" ] && return
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done
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json_add_object ""
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json_add_string type rule
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json_add_string src "$zone"
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json_add_string proto udp
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json_add_string dest_port 161
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json_add_string target ACCEPT
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json_close_object
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HANDLED_SNMP_ZONES="$HANDLED_SNMP_ZONES $zone"
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}
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start_service() {
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[ -f "$CONFIGFILE" ] && rm -f "$CONFIGFILE"
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config_load snmpd
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config_get_bool snmp_enabled general enabled 1
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[ "$snmp_enabled" -eq 0 ] && return
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procd_open_instance
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config_foreach snmpd_agent_add agent
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config_foreach snmpd_agentx_add agentx
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config_foreach snmpd_system_add system
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config_foreach snmpd_com2sec_add com2sec
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config_foreach snmpd_com2sec6_add com2sec6
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config_foreach snmpd_group_add group
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config_foreach snmpd_view_add view
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config_foreach snmpd_access_add access
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config_foreach snmpd_trap_hostname_add trap_HostName
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config_foreach snmpd_trap_ip_add trap_HostIP
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config_foreach snmpd_access_default_add access_default
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config_foreach snmpd_access_HostName_add access_HostName
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config_foreach snmpd_access_HostIP_add access_HostIP
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config_foreach snmpd_pass_add pass
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config_foreach snmpd_exec_add exec
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config_foreach snmpd_extend_add extend
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config_foreach snmpd_disk_add disk
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config_foreach snmpd_engineid_add engineid
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append_parm trapcommunity community trapcommunity
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config_foreach snmpd_sink_add trapsink trapsink
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config_foreach snmpd_sink_add trap2sink trap2sink
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config_foreach snmpd_sink_add informsink informsink
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append_authtrapenable authtrapenable enable authtrapenable
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append_parm v1trapaddress host v1trapaddress
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append_parm trapsess trapsess trapsess
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procd_set_param command $PROG -Lf /dev/null -f
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procd_set_param file $CONFIGFILE
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procd_set_param respawn
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for iface in $(ls /sys/class/net 2>/dev/null); do
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procd_append_param netdev "$iface"
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done
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procd_open_data
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json_add_array firewall
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config_list_foreach general network snmpd_setup_fw_rules
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json_close_array
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procd_close_data
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procd_close_instance
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}
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stop_service() {
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[ -f "$CONFIGFILE" ] && rm -f "$CONFIGFILE"
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}
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service_triggers(){
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local script=$(readlink "$initscript")
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local name=$(basename ${script:-$initscript})
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procd_open_trigger
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procd_add_raw_trigger "interface.*" 2000 /etc/init.d/$name reload
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procd_close_trigger
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procd_add_reload_trigger 'snmpd'
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}
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