0943a70215
Co-authored-by: Marko <marbar3778@yahoo.com> Co-authored-by: Julien Robert <julien@rbrt.fr>
25 lines
1010 B
Go
25 lines
1010 B
Go
/*
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unknownproto implements functionality to "type check" protobuf serialized byte sequences
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against an expected proto.Message to report:
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a) Unknown fields in the stream -- this is indicative of mismatched services, perhaps a malicious actor
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b) Mismatched wire types for a field -- this is indicative of mismatched services
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Its API signature is similar to proto.Unmarshal([]byte, proto.Message) in the strict case
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if err := RejectUnknownFieldsStrict(protoBlob, protoMessage, false); err != nil {
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// Handle the error.
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}
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and ideally should be added before invoking proto.Unmarshal, if you'd like to enforce the features mentioned above.
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By default, for security we report every single field that's unknown, whether a non-critical field or not. To customize
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this behavior, please set the boolean parameter allowUnknownNonCriticals to true to RejectUnknownFields:
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if err := RejectUnknownFields(protoBlob, protoMessage, true); err != nil {
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// Handle the error.
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}
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*/
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package unknownproto
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