ce4b645178
Add a new tool packetforge to extras. This tool is to support generic flow. Packetforge is a library to translate naming or json profile format flow pattern to the required input of generic flow, i.e. spec and mask. Using python script flow_create.py, it can add and enable a new flow rule for an interface via flow VAPI, and can delete an existed flow rule as well. Command examples are shown below. Json profile examples can be found in ./parsegraph/samples. Naming format input: python flow_create.py --add -p "mac()/ipv4(src=1.1.1.1,dst=2.2.2.2)/udp()" -a "redirect-to-queue 3" -i 1 python flow_create.py --del -i 1 -I 0 Json profile format input: python flow_create.py -f "./flow_rule_examples/mac_ipv4.json" -i 1 With this command, flow rule can be added or deleted, and the flow entry can be listed with "show flow entry" command in VPP CLI. Packetforge is based on a parsegraph. The parsegraph can be built by users. A Spec can be found in ./parsegraph as guidance. More details about packetforge are in README file. Type: feature Signed-off-by: Ting Xu <ting.xu@intel.com> Change-Id: Ia9f539741c5dca27ff236f2bcc493c5dd48c0df1
46 lines
1.7 KiB
Python
46 lines
1.7 KiB
Python
# Copyright (c) 2022 Intel and/or its affiliates.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import ExpressionConverter
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class ForgeResult:
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def __init__(self, Header, PacketBuffer, MaskBuffer):
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self.Headers = Header
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self.PacketBuffer = PacketBuffer
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self.MaskBuffer = MaskBuffer
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def ToJSON(self):
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result = {}
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result["Length"] = str(len(self.PacketBuffer))
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result["Packet"] = ExpressionConverter.ByteArrayToString(self.PacketBuffer)
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result["Mask"] = ExpressionConverter.ByteArrayToString(self.MaskBuffer)
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result["Protocol Stack"] = []
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for header in self.Headers:
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head_info = {}
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head_info["name"] = header.Name()
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head_info["Fields"] = []
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for field in header.fields:
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if field.Size == 0:
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continue
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field_info = {}
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field_info["name"] = field.Field.Name
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field_info["size"] = str(field.Size)
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field_info["value"] = field.Value
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field_info["mask"] = field.Mask
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head_info["Fields"].append(field_info)
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result["Protocol Stack"].append(head_info)
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return result
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