663ad8b1 - xdrgen: Fix return code checking in built-in XDR decoders

Tue, 10 Sep 2024 19:31:19 +0000

xdrgen: Fix return code checking in built-in XDR decodersxdr_stream_encode_u32() returns XDR_UNIT on success.xdr_stream_decode_u32() returns zero or -EMSGSIZE, but neverXDR_UNIT.Signed-off-by: Chuck Lever List of files: /linux-6.15/tools/net/sunrpc/xdrgen/templates/C/union/decoder/variable_length_array.j2

4b132aac - tools: Add xdrgen

Fri, 13 Sep 2024 18:08:13 +0000

tools: Add xdrgenAdd a Python-based tool for translating XDR specifications into XDRencoder and decoder functions written in the Linux kernel's C codingstyle. The generator attempts to match the usual C coding style ofthe Linux kernel's SunRPC consumers.This approach is similar to the netlink code generator intools/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 codeIn addition, converting the XDR layer to use memory-safe languagessuch as Rust will be easier if much of the code can be convertedautomatically.Tested-by: Jeff Layton Signed-off-by: Chuck Lever List of files: /linux-6.15/tools/net/sunrpc/xdrgen/templates/C/union/decoder/variable_length_array.j2

Changes in variable_length_array.j2

663ad8b1 - xdrgen: Fix return code checking in built-in XDR decoders

4b132aac - tools: Add xdrgen