class SNMP::Message
Attributes
Public Class Methods
Source
# File lib/snmp/pdu.rb, line 50 def decode(data, mib=nil) message_data, remainder = decode_sequence(data) assert_no_remainder(remainder) version, remainder = decode_version(message_data) community, remainder = decode_octet_string(remainder) pdu, remainder = decode_pdu(version, remainder, mib) assert_no_remainder(remainder) Message.new(version, community, pdu) end
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# File lib/snmp/pdu.rb, line 72 def decode_pdu(version, data, mib=nil) pdu_tag, pdu_data, remainder = decode_tlv(data) case pdu_tag when BER::GetRequest_PDU_TAG pdu = PDU.decode(GetRequest, pdu_data, mib) when BER::GetNextRequest_PDU_TAG pdu = PDU.decode(GetNextRequest, pdu_data, mib) when BER::Response_PDU_TAG pdu = PDU.decode(Response, pdu_data, mib) when BER::SetRequest_PDU_TAG pdu = PDU.decode(SetRequest, pdu_data, mib) when BER::SNMPv1_Trap_PDU_TAG raise InvalidPduTag, "SNMPv1-trap not valid for #{version.to_s}" if version != :SNMPv1 pdu = SNMPv1_Trap.decode(pdu_data, mib) when BER::GetBulkRequest_PDU_TAG raise InvalidPduTag, "get-bulk not valid for #{version.to_s}" if version != :SNMPv2c pdu = PDU.decode(GetBulkRequest, pdu_data, mib) when BER::InformRequest_PDU_TAG raise InvalidPduTag, "inform not valid for #{version.to_s}" if version != :SNMPv2c pdu = PDU.decode(InformRequest, pdu_data, mib) when BER::SNMPv2_Trap_PDU_TAG raise InvalidPduTag, "SNMPv2c-trap not valid for #{version.to_s}" if version != :SNMPv2c pdu = PDU.decode(SNMPv2_Trap, pdu_data, mib) else raise UnsupportedPduTag, pdu_tag.to_s end return pdu, remainder end
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# File lib/snmp/pdu.rb, line 60 def decode_version(data) version_data, remainder = decode_integer(data) if version_data == BER::SNMP_V1 version = :SNMPv1 elsif version_data == BER::SNMP_V2C version = :SNMPv2c else raise UnsupportedVersion, version_data.to_s end return version, remainder end
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# File lib/snmp/pdu.rb, line 102 def initialize(version, community, pdu) @version = version @community = community @pdu = pdu end
Public Instance Methods
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# File lib/snmp/pdu.rb, line 122 def encode data = encode_version(@version) data << encode_octet_string(@community) data << @pdu.encode encode_sequence(data) end
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# File lib/snmp/pdu.rb, line 112 def encode_version(version) if version == :SNMPv1 encode_integer(BER::SNMP_V1) elsif version == :SNMPv2c encode_integer(BER::SNMP_V2C) else raise UnsupportedVersion, version.to_s end end
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# File lib/snmp/pdu.rb, line 108 def response Message.new(@version, @community, Response.from_pdu(@pdu)) end