vpp: 25.06 -> 25.10, cleanup

  stdenv,

  fetchFromGitHub,

  nix-update-script,

  writeText,

  cmake,

  pkg-config,

  check,

  openssl,

  python3,

  subunit,

  mbedtls_2,

  # optional dependencies

  withStackTraces ? true,

  libiberty,

  libunwind,

  withOpenssl ? true, # tls/quic/wireguard plugins

  openssl,

  withLibPcap ? true, # bpf_trace_filter plugin

  libpcap,

  withNetlinkLibs ? true, # linux-cp plugin

  libnl,

  libmnl,

  libelf,

  withRdma ? true,

  rdma-core,

  withDpdk ? true,

  dpdk,

  jansson,

  zlib,

  rdma-core,

  libbpf,

  withAfXdp ? true,

  xdp-tools,

  writeText,

  enableDpdk ? true,

  enableRdma ? true,

  enableAfXdp ? true,

}:

  libbpf,

  # Support for all network cards, but slower than native XDP

  enableAfXdpSkbMode ? false,

  libelf,

  zlib,

}:

let

  dpdk' = dpdk.overrideAttrs (old: {

    mesonFlags = old.mesonFlags ++ [ "-Denable_driver_sdk=true" ];

  });

  rdma-core' = rdma-core.overrideAttrs (old: {

    cmakeFlags = old.cmakeFlags ++ [

      "-DENABLE_STATIC=1"

      "-DBUILD_SHARED_LIBS:BOOL=false"

    ];

  });

  # in 25.02 only ID seems to be of interest, so keep it simple

  os-release-fake = writeText "os-release-fake" ''

    ID=nixos

  '';

  # >=25.02 uses /etc/os-release, so we substitute it

  osRelease = writeText "os-release" "ID=nixos";

in

stdenv.mkDerivation rec {

stdenv.mkDerivation (finalAttrs: {

  pname = "vpp";

  version = "25.06";

  version = "25.10";

  src = fetchFromGitHub {

    owner = "FDio";

    repo = "vpp";

    rev = "v${version}";

    hash = "sha256-BuHKPQA4qHoADqBg2IztlzUMpbvYKK5uH7ktChSW5vk=";

    tag = "v${finalAttrs.version}";

    hash = "sha256-J+aJXzq9jKzcFKpUNBskX3KccwKtZhK+m8NTbrGjsXw=";

  };

  postPatch = ''

    patchShebangs scripts/

    substituteInPlace pkg/CMakeLists.txt \

      --replace-fail "/etc/os-release" "${os-release-fake}"

      --replace-fail "/etc/os-release" "${osRelease}"

  '';

  preConfigure = ''

    echo "${version}-nixos" > scripts/.version

    scripts/version

    echo "${finalAttrs.version}-nixos" > scripts/.version

    ./scripts/version

  '';

  postConfigure = ''

    patchShebangs ../vpp-api/

  '';

  sourceRoot = "${src.name}/src";

  sourceRoot = "${finalAttrs.src.name}/src";

  enableParallelBuilding = true;

  env.NIX_CFLAGS_COMPILE = "-Wno-error -Wno-array-bounds -Wno-maybe-uninitialized";

  cmakeFlags = [

    "-DVPP_PLATFORM=default"

    "-DVPP_LIBRARY_DIR=lib"

    "-DVPP_BUILD_PYTHON_API=false" # fails to build as of 25.10

  ]

  ++ lib.optional enableDpdk "-DVPP_USE_SYSTEM_DPDK=ON";

  ++ lib.optional withDpdk "-DVPP_USE_SYSTEM_DPDK=ON";

  nativeBuildInputs = [

    cmake

    pkg-config

  ]

  ++ lib.optional enableDpdk dpdk'

  ++ lib.optional enableRdma rdma-core'.dev;

  buildInputs = [

    check

    openssl

    (python3.withPackages (ps: [ ps.ply ]))

  ];

    subunit # vapi tests

    mbedtls_2 # tlsmbed plugin

    libpcap # bpf_trace_filter plugin

    # linux-cp plugin

  buildInputs =

    lib.optionals withStackTraces [

      libiberty

      libunwind

    ]

    ++ lib.optional withOpenssl openssl

    ++ lib.optional withLibPcap libpcap

    ++ lib.optionals withNetlinkLibs [

      libnl

      libmnl

    ]

  ++ lib.optionals enableDpdk [

    # dpdk plugin

    libelf

    ++ lib.optionals withDpdk [

      dpdk'

      jansson

      libelf

      zlib

    ]

  ++ lib.optionals enableAfXdp [

    # af_xdp plugin

    ++ lib.optional withRdma rdma-core

    ++ lib.optionals withAfXdp [

      libelf

      libbpf

      xdp-tools

      zlib

    ];

  patches = lib.optionals enableAfXdp [

    ./use-dynamic-libxdp-libbpf.patch

  ];

  strictDeps = true;

  patches = [

    # VPP links to static RDMA/XDP by default

    ./use-dynamic-libs.patch

  ]

  ++ lib.optional enableAfXdpSkbMode ./xdp-skb-mode.patch;

  passthru.updateScript = nix-update-script { };

  meta = {

    description = "Fast, scalable layer 2-4 multi-platform network stack running in user space";

    homepage = "https://s3-docs.fd.io/vpp/${version}/";

    license = [ lib.licenses.asl20 ];

    maintainers = with lib.maintainers; [ azey7f ];

    mainProgram = "vpp";

    homepage = "https://s3-docs.fd.io/vpp/${finalAttrs.version}/";

    license = lib.licenses.asl20;

    platforms = lib.platforms.linux;

    mainProgram = "vpp";

    maintainers = with lib.maintainers; [ azey7f ];

  };

}

})

 vpp_plugin_find_library(af_xdp ELF_LIB elf)

 vpp_plugin_find_library(af_xdp Z_LIB z)

 if (NOT XDP_LIB OR NOT BPF_LIB OR NOT ELF_LIB OR NOT Z_LIB)

--- a/plugins/rdma/CMakeLists.txt

+++ b/plugins/rdma/CMakeLists.txt

@@ -18,8 +18,8 @@ if (NOT IBVERBS_INCLUDE_DIR)

   return()

 endif()

-vpp_plugin_find_library(rdma IBVERBS_LIB libibverbs.a)

-vpp_plugin_find_library(rdma MLX5_LIB libmlx5.a)

+vpp_plugin_find_library(rdma IBVERBS_LIB ibverbs)

+vpp_plugin_find_library(rdma MLX5_LIB mlx5)

 if (NOT IBVERBS_LIB OR NOT MLX5_LIB)

   message(WARNING "rdma plugin - ibverbs not found - rdma plugin disabled")

--- a/plugins/af_xdp/device.c

+++ b/plugins/af_xdp/device.c

@@ -330,6 +330,7 @@

   sock_config.rx_size = args->rxq_size;

   sock_config.tx_size = args->txq_size;

   sock_config.bind_flags = XDP_USE_NEED_WAKEUP;

+  sock_config.xdp_flags = XDP_FLAGS_SKB_MODE;

   switch (args->mode)

     {

     case AF_XDP_MODE_AUTO: