mirror of
https://github.com/ntop/ntopng.git
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116 lines
3.7 KiB
Lua
116 lines
3.7 KiB
Lua
--
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-- (C) 2013-20 - ntop.org
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--
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local sys_utils = require("sys_utils")
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local config = {}
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-- ################################################################
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function config.writeNetworkInterfaceConfig(f, iface, network_conf, dns_config, bridge_ifaces)
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f:write("\nauto " .. iface .. "\n")
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if network_conf.mode == "static" then
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f:write("iface " .. iface .. " inet static\n")
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f:write("\taddress " .. network_conf.ip .. "\n")
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f:write("\tnetmask " .. network_conf.netmask .. "\n")
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if not isEmptyString(network_conf.gateway) then
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f:write("\tgateway " .. network_conf.gateway .. "\n")
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if network_conf.primary_dns and network_conf.secondary_dns then
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f:write("\tdns-nameservers " .. table.concat({network_conf.primary_dns, network_conf.secondary_dns}, " ") .. "\n")
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elseif dns_config then
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f:write("\tdns-nameservers " .. table.concat({dns_config.global, dns_config.secondary}, " ") .. "\n")
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end
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end
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elseif network_conf.mode == "vlan_trunk" then
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-- nothing to configure for a vlan-trunk bridge interface
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f:write("iface " .. iface .. " inet manual\n")
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else
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f:write("iface " .. iface .. " inet " .. network_conf.mode .. "\n")
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if network_conf.mode == "dhcp" then
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f:write("\tpre-up /bin/rm -f /var/lib/dhcp/dhclient.".. iface ..".leases\n")
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end
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end
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if string.contains(iface, ".") then
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-- VLAN interface
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local parts = split(iface, "%.")
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if #parts == 2 then
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f:write("\tvlan-raw-device " .. parts[1])
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end
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end
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if bridge_ifaces ~= nil then
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f:write("\tbridge_ports ".. table.concat(bridge_ifaces, " ") .. "\n")
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f:write("\tbridge_stp off\n")
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end
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end
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-- ################################################################
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function config.openNetworkInterfacesConfigFile()
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local network_conf_file = "ntop.conf"
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local network_custom_conf_file = "ntop_mgmt.conf"
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if ntop.isnEdge() then
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network_conf_file = "nedge.conf"
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network_custom_conf_file = "nedge_mgmt.conf"
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end
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-- verify that the file is actually included
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for _, source in ipairs({network_conf_file, network_custom_conf_file}) do
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local source_line = "source /etc/network/interfaces.d/"..source
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local res = sys_utils.execShellCmd("grep \"^" .. source_line .. "\" /etc/network/interfaces 2>/dev/null")
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if isEmptyString(res) then
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traceError(TRACE_NORMAL, TRACE_CONSOLE, "Adding missing '" .. source_line .. "'")
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local f = sys_utils.openFile("/etc/network/interfaces", "a")
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f:write("\n" .. source_line .. "\n")
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f:close()
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end
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end
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return sys_utils.openFile("/etc/network/interfaces.d/"..network_conf_file, "w")
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end
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-- ################################################################
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function config.closeNetworkInterfacesConfigFile(f)
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f:close()
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end
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-- ################################################################
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function config.backupNetworkInterfacesFiles(to_backup)
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os.rename("/etc/network/interfaces", "/etc/network/interfaces.old")
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traceError(TRACE_WARNING, TRACE_CONSOLE, "/etc/network/interfaces has been moved to /etc/network/interfaces.old")
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end
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-- ################################################################
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function config.isConfiguredInterface(iface)
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local res = sys_utils.execShellCmd("grep \"^\\s*[^#]*" .. iface .. "\" /etc/network/interfaces")
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return not isEmptyString(res)
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end
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-- ################################################################
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function config.dhcpInterfaceGetGateway(iface)
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local res = sys_utils.execShellCmd("grep \"option routers\" /var/lib/dhcp/dhclient." .. iface .. ".leases 2>/dev/null | tail -n 1")
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if not isEmptyString(res) then
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return res:gmatch("routers ([^;]+)")()
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end
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return res
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end
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-- ################################################################
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return config
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