diff options
Diffstat (limited to 'GPL/traffic_profiles/trex')
| -rw-r--r-- | GPL/traffic_profiles/trex/profile_trex_astf_base_class.py | 129 | ||||
| -rw-r--r-- | GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h.py | 117 |
2 files changed, 246 insertions, 0 deletions
diff --git a/GPL/traffic_profiles/trex/profile_trex_astf_base_class.py b/GPL/traffic_profiles/trex/profile_trex_astf_base_class.py new file mode 100644 index 0000000000..ed28ccbb78 --- /dev/null +++ b/GPL/traffic_profiles/trex/profile_trex_astf_base_class.py @@ -0,0 +1,129 @@ +# Copyright (c) 2020 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Base class for profiles for T-rex advanced stateful (astf) traffic generator. +""" + +from random import choices +from string import ascii_letters + +from trex.astf.api import * + + +class TrafficProfileBaseClass: + """Base class for profiles for T-rex astf traffic generator.""" + + STREAM_TABLE = { + u"IMIX_v4": [ + {u"size": 60, u"pps": 28, u"isg": 0}, + {u"size": 590, u"pps": 20, u"isg": 0.1}, + {u"size": 1514, u"pps": 4, u"isg": 0.2} + ], + 'IMIX_v4_1': [ + {u"size": 64, u"pps": 28, u"isg": 0}, + {u"size": 570, u"pps": 16, u"isg": 0.1}, + {u"size": 1518, u"pps": 4, u"isg": 0.2} + ] + } + + def __init__(self): + # Default values of required parameters; can be overwritten in + # "get_profile" method. + self.framesize = 64 + self._pcap_dir = u"" + + # If needed, add your own parameters. + + @property + def pcap_dir(self): + """Pcap file directory. + + If needed, implement your own algorithm. + + :returns: Pcap file directory. + :rtype: str + """ + return self._pcap_dir + + def _gen_padding(self, current_length, required_length=0): + """Generate padding. + + If needed, implement your own algorithm. + + :param current_length: Current length of the packet. + :param required_length: Required length of the packet. If set to 0 then + self.framesize value is used. + :type current_length: int + :type required_length: int + :returns: The generated padding. + :rtype: str + """ + # TODO: Add support for IMIX frame size; + # use random.randrange(0, len(self.STREAM_TABLE[self.framesize])) ? + if not required_length: + required_length = self.framesize + + return str(choices(ascii_letters, k=required_length - current_length)) + + def define_profile(self): + """Define profile to be used by T-Rex astf traffic generator. + + This method MUST return: + + return ip_gen, templates, cap_list + + templates or cap_list CAN be None. + + :returns: IP generator and profile templates or list of pcap files for + traffic generator. + :rtype: tuple + """ + raise NotImplementedError + + def create_profile(self): + """Create traffic profile. + + Implement your own traffic profiles. + + :returns: Traffic profile. + :rtype: trex.astf.trex_astf_profile.ASTFProfile + """ + ip_gen, templates, cap_list = self.define_profile() + + # In most cases you will not have to change the code below: + + # profile + profile = ASTFProfile( + default_ip_gen=ip_gen, + templates=templates, + cap_list=cap_list + ) + + return profile + + def get_profile(self, **kwargs): + """Get traffic profile created by "create_profile" method. + + If needed, add your own parameters. + + :param kwargs: Key-value pairs used by "create_profile" method while + creating the profile. + :returns: Traffic profile. + :rtype: trex.astf.trex_astf_profile.ASTFProfile + """ + self.framesize = kwargs[u"framesize"] + self._pcap_dir = kwargs.get( + u"pcap_dir",u"/opt/trex-core-2.73/scripts/avl" + ) + + return self.create_profile() diff --git a/GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h.py b/GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h.py new file mode 100644 index 0000000000..a010fe1613 --- /dev/null +++ b/GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h.py @@ -0,0 +1,117 @@ +# Copyright (c) 2020 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Traffic profile for T-rex advanced stateful (astf) traffic generator. + +Traffic profile: + - Two streams sent in directions 0 --> 1 (client -> server, requests) and + 1 --> 0 (server -> client, responses) at the same time. + - Packet: ETH / IP / UDP + - Direction 0 --> 1: + - Source IP address range: 192.168.0.0 - 192.168.3.255 + - Destination IP address range: 20.0.0.0 - 20.0.3.255 + - Direction 1 --> 0: + - Source IP address range: destination IP address from packet received + on port 1 + - Destination IP address range: source IP address from packet received + on port 1 +""" + +from trex.astf.api import * + +from profile_trex_astf_base_class import TrafficProfileBaseClass + + +class TrafficProfile(TrafficProfileBaseClass): + """Traffic profile.""" + + def __init__(self): + """Initialization and setting of profile parameters.""" + + super(TrafficProfileBaseClass, self).__init__() + + # IPs used in packet headers. + self.p1_src_start_ip = u"192.168.0.0" + self.p1_src_end_ip = u"192.168.3.255" + self.p1_dst_start_ip = u"20.0.0.0" + self.p1_dst_end_ip = u"20.0.3.255" + + # UDP messages + self.udp_req = u"GET" + self.udp_res = u"ACK" + + # Headers length + self.headers_size = 42 # 14B l2 + 20B ipv4 + 8B udp + + def define_profile(self): + """Define profile to be used by advanced stateful traffic generator. + + This method MUST return: + return ip_gen, templates, None + + :returns: IP generator and profile templates ASTFProfile(). + :rtype: tuple + """ + self.udp_req += self._gen_padding(self.headers_size + len(self.udp_req)) + self.udp_res += self._gen_padding(self.headers_size + len(self.udp_res)) + + # client commands + prog_c = ASTFProgram(stream=False) + prog_c.send_msg(self.udp_req) # size and fill not supported in v2.73 + prog_c.recv_msg(1) + + # server commands + prog_s = ASTFProgram(stream=False) + prog_s.recv_msg(1) + prog_s.send_msg(self.udp_res) + + # ip generators + ip_gen_c = ASTFIPGenDist( + ip_range=[self.p1_src_start_ip, self.p1_src_end_ip], + distribution=u"seq" + ) + ip_gen_s = ASTFIPGenDist( + ip_range=[self.p1_dst_start_ip, self.p1_dst_end_ip], + distribution=u"seq" + ) + ip_gen = ASTFIPGen( + glob=ASTFIPGenGlobal(ip_offset=u"0.0.0.1"), + dist_client=ip_gen_c, + dist_server=ip_gen_s + ) + + # server association + s_assoc = ASTFAssociation(rules=ASTFAssociationRule(port=8080)) + + # template + temp_c = ASTFTCPClientTemplate( + program=prog_c, + ip_gen=ip_gen, + limit=64512, # TODO: set via input parameter ? + port=8080 + ) + temp_s = ASTFTCPServerTemplate(program=prog_s, assoc=s_assoc) + template = ASTFTemplate(client_template=temp_c, server_template=temp_s) + + return ip_gen, template, None + + +def register(): + """Register this traffic profile to T-Rex. + + Do not change this function. + + :return: Traffic Profiles. + :rtype: Object + """ + return TrafficProfile() |