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4b132aacb0
Add a Python-based tool for translating XDR specifications into XDR encoder and decoder functions written in the Linux kernel's C coding style. The generator attempts to match the usual C coding style of the Linux kernel's SunRPC consumers. This approach is similar to the netlink code generator in tools/net/ynl . The maintainability benefits of machine-generated XDR code include: - Stronger type checking - Reduces the number of bugs introduced by human error - Makes the XDR code easier to audit and analyze - Enables rapid prototyping of new RPC-based protocols - Hardens the layering between protocol logic and marshaling - Makes it easier to add observability on demand - Unit tests might be built for both the tool and (automatically) for the generated code In addition, converting the XDR layer to use memory-safe languages such as Rust will be easier if much of the code can be converted automatically. Tested-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
20 lines
348 B
Django/Jinja
20 lines
348 B
Django/Jinja
{# SPDX-License-Identifier: GPL-2.0 #}
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{% if annotate %}
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/* enum {{ name }} */
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{% endif %}
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{% if name in public_apis %}
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bool
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{% else %}
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static bool __maybe_unused
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{% endif %}
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xdrgen_decode_{{ name }}(struct xdr_stream *xdr, enum {{ name }} *ptr)
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{
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u32 val;
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if (xdr_stream_decode_u32(xdr, &val) < 0)
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return false;
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*ptr = val;
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return true;
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}
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