levelization

XUSH_test covers the datagram codec and the reassembler, but nothing
exercised the OverlayImpl side: processXUSH and its XUSHPEER / XUSHTXNF
handlers, the transaction checks run from the job queue, publishTxXUSH,
sendXUSHPeers and the send sockets.

OverlayXUSH_test runs a jtx::Env with [udp_highway] enabled and:

- feeds datagrams through processXUSH and checks what PeerFinder learns,
  what NetworkOPs applies and what the sender is charged for
- covers bad transactions: ID mismatch, unparsable, inconsistent and
  malformed fragments, pseudo transactions, expired and badly signed
  transactions, and that a sender over the resource limit is ignored
- receives datagrams on local UDP sockets registered as fixed peers to
  check that relayed transactions are published (IPv4 and IPv6),
  fragmented, size limited, and that XUSHPEER adverts are sent by the
  overlay timer without advertising fixed peers

.codecov.yml

@@ -0,0 +1,46 @@
+codecov:
+  require_ci_to_pass: true
+
+comment:
+  behavior: default
+  layout: reach,diff,flags,tree,reach
+  show_carryforward_flags: false
+
+coverage:
+  range: "60..80"
+  precision: 1
+  round: nearest
+  status:
+    project:
+      default:
+        target: 60%
+        threshold: 2%
+    patch:
+      default:
+        target: auto
+        threshold: 2%
+        paths:
+          # PeerImp is historically hard to exercise in the current unit-test
+          # harness. Keep this list narrow; new testable code should remain
+          # covered by the default patch gate.
+          - "!src/xrpld/overlay/detail/PeerImp.cpp"
+      historically-untested:
+        target: 0%
+        paths:
+          - "src/xrpld/overlay/detail/PeerImp.cpp"
+    changes: false
+
+github_checks:
+  annotations: true
+
+parsers:
+  cobertura:
+    partials_as_hits: true
+    handle_missing_conditions : true
+
+slack_app: false
+
+ignore:
+  - "src/test/"
+  - "include/xrpl/beast/test/"
+  - "include/xrpl/beast/unit_test/"

.git-blame-ignore-revs

@@ -1,8 +1,25 @@
 # This feature requires Git >= 2.24
 # To use it by default in git blame:
 # git config blame.ignoreRevsFile .git-blame-ignore-revs
+# Format first-party source according to .clang-format
 50760c693510894ca368e90369b0cc2dabfd07f3
-e2384885f5f630c8f0ffe4bf21a169b433a16858
-241b9ddde9e11beb7480600fd5ed90e1ef109b21
-760f16f56835663d9286bd29294d074de26a7ba6
-0eebe6a5f4246fced516d52b83ec4e7f47373edd
+# Reintroduce Clang-Format & Levelization
+da1d20d6d5d862716125d60899b80fab5302954a
+# Consolidate external libraries
+da1d20d6d5d862716125d60899b80fab5302954a
+# Rename .hpp to .h
+0345a2645d0f5ad900f4fbbcaff96040d3a887fc
+# Format formerly .hpp files
+5a227dc719016e10045e17c9396ad401118044f1
+# Rewrite includes
+e61880699997398f5a746e6c4034edc7632661f5
+# Move CMake directory (#4997)
+e47b1c1b3b97c3f6d11858ee02f463596e29e7f0
+# Rearrange sources (#4997)
+bfafa2bb39e562901736d656806bd700c3699a2f
+# Rewrite includes (#4997)
+e61880699997398f5a746e6c4034edc7632661f5
+# Recompute loops (#4997)
+d25b5dcd568bb96c18e347d55fac10fe901a1bfb
+# Reformat code with clang-format-18
+02749feea88ce61c1f7eeb2d61a57d8ecf07ab11

.github/actions/xahau-ga-build/action.yml

@@ -2,6 +2,14 @@ name: build
 description: 'Builds the project with ccache integration'
 
 inputs:
+  cmake-target:
+    description: 'CMake target to build'
+    required: false
+    default: all
+  cmake-args:
+    description: 'Additional CMake arguments'
+    required: false
+    default: null
   generator:
     description: 'CMake generator to use'
     required: true
@@ -20,6 +28,10 @@ inputs:
     description: 'C++ compiler to use'
     required: false
     default: ''
+  gcov:
+    description: 'Gcov to use'
+    required: false
+    default: ''
   compiler-id:
     description: 'Unique identifier: compiler-version-stdlib[-gccversion] (e.g. clang-14-libstdcxx-gcc11, gcc-13-libstdcxx)'
     required: false
@@ -41,10 +53,11 @@ inputs:
     required: false
     default: 'dev'
   stdlib:
-    description: 'C++ standard library to use'
+    description: 'C++ standard library to use (default = compiler default, e.g. GCC always uses libstdc++)'
     required: true
     type: choice
     options:
+      - default
       - libstdcxx
       - libcxx
   clang_gcc_toolchain:
@@ -87,11 +100,6 @@ runs:
         export CCACHE_CONFIGPATH="$HOME/.config/ccache/ccache.conf"
         echo "CCACHE_CONFIGPATH=$CCACHE_CONFIGPATH" >> $GITHUB_ENV
 
-        # Keep config separate from cache_dir so configs aren't swapped when CCACHE_DIR changes between steps
-        mkdir -p ~/.config/ccache
-        export CCACHE_CONFIGPATH="$HOME/.config/ccache/ccache.conf"
-        echo "CCACHE_CONFIGPATH=$CCACHE_CONFIGPATH" >> $GITHUB_ENV
-
         # Configure ccache settings AFTER cache restore (prevents stale cached config)
         ccache --set-config=max_size=${{ inputs.ccache_max_size }}
         ccache --set-config=hash_dir=${{ inputs.ccache_hash_dir }}
@@ -122,6 +130,10 @@ runs:
           export CXX="${{ inputs.cxx }}"
         fi
 
+        if [ -n "${{ inputs.gcov }}" ]; then
+          ln -sf /usr/bin/${{ inputs.gcov }} /usr/local/bin/gcov
+        fi
+
         # Create wrapper toolchain that overlays ccache on top of Conan's toolchain
         # This enables ccache for the main app build without affecting Conan dependency builds
         if [ "${{ inputs.ccache_enabled }}" = "true" ]; then
@@ -185,7 +197,8 @@ runs:
           -DCMAKE_TOOLCHAIN_FILE:FILEPATH=${TOOLCHAIN_FILE} \
           -DCMAKE_BUILD_TYPE=${{ inputs.configuration }} \
           -Dtests=TRUE \
-          -Dxrpld=TRUE
+          -Dxrpld=TRUE \
+          ${{ inputs.cmake-args }}
 
     - name: Show ccache config before build
       if: inputs.ccache_enabled == 'true'
@@ -209,7 +222,7 @@ runs:
           VERBOSE_FLAG="-- -v"
         fi
 
-        cmake --build . --config ${{ inputs.configuration }} --parallel $(nproc) ${VERBOSE_FLAG}
+        cmake --build . --config ${{ inputs.configuration }} --parallel $(nproc) --target ${{ inputs.cmake-target }} ${VERBOSE_FLAG}
 
     - name: Show ccache statistics
       if: inputs.ccache_enabled == 'true'

.github/actions/xahau-ga-dependencies/action.yml

@@ -50,6 +50,10 @@ inputs:
     options:
       - libstdcxx
       - libcxx
+  conan_deps_cxxflags:
+    description: 'Extra cxxflags applied to Conan dependency package builds only (NOT the rippled build). JSON object keyed by Conan package pattern, e.g. {"grpc/*":["-Wno-foo"]}. Maps to <pattern>:tools.build:cxxflags.'
+    required: false
+    default: '{}'
 
 outputs:
   cache-hit:
@@ -81,6 +85,8 @@ runs:
 
     - name: Configure Conan
       shell: bash
+      env:
+        CONAN_DEPS_CXXFLAGS: ${{ inputs.conan_deps_cxxflags }}
       run: |
         # Create the default profile directory if it doesn't exist
         mkdir -p ~/.conan2/profiles
@@ -105,7 +111,14 @@ runs:
         os=${{ inputs.os }}
         EOF
 
-        # Add buildenv and conf sections for Linux (not needed for macOS)
+        # [buildenv] + [conf] sections.
+        # Linux pins compiler executables; macOS uses the system toolchain.
+        # conan_deps_cxxflags (matrix-driven) optionally adds package-pattern
+        # scoped tools.build:cxxflags for Conan dependency builds only - typically
+        # grpc workarounds for newer clang's stricter diagnostics. Because these
+        # are profile-pattern scoped (e.g. grpc/*:...), they do NOT affect the
+        # consumer/rippled toolchain generated for the main build.
+        NEED_CONF=0
         if [ "${{ inputs.os }}" = "Linux" ] && [ -n "${{ inputs.cc }}" ]; then
           cat >> ~/.conan2/profiles/default <<EOF
 
@@ -116,16 +129,38 @@ runs:
         [conf]
         tools.build:compiler_executables={"c": "/usr/bin/${{ inputs.cc }}", "cpp": "/usr/bin/${{ inputs.cxx }}"}
         EOF
+          NEED_CONF=1
         fi
 
-        # Add macOS-specific conf if needed
-        if [ "${{ inputs.os }}" = "Macos" ]; then
-          cat >> ~/.conan2/profiles/default <<EOF
+        if [ -n "${CONAN_DEPS_CXXFLAGS}" ] && [ "${CONAN_DEPS_CXXFLAGS}" != "{}" ]; then
+          CONAN_DEPS_CXXFLAGS_LINES="$(python3 - <<'PY'
+        import json
+        import os
+        import sys
 
-        [conf]
-        # Workaround for gRPC with newer Apple Clang
-        tools.build:cxxflags=["-Wno-missing-template-arg-list-after-template-kw"]
-        EOF
+        raw = os.environ["CONAN_DEPS_CXXFLAGS"]
+        data = json.loads(raw)
+        if not isinstance(data, dict):
+            sys.exit("conan_deps_cxxflags must be a JSON object like {\"grpc/*\": [\"-Wno-...\"]}")
+
+        for pattern, flags in data.items():
+            if not isinstance(pattern, str) or not pattern:
+                sys.exit("conan_deps_cxxflags keys must be non-empty Conan package patterns")
+            if pattern == "&":
+                sys.exit("conan_deps_cxxflags must target dependency package patterns, not the consumer (&)")
+            if not isinstance(flags, list) or not all(isinstance(flag, str) for flag in flags):
+                sys.exit(f"{pattern}: cxxflags must be a JSON string list")
+            if flags:
+                print(f"{pattern}:tools.build:cxxflags={json.dumps(flags, separators=(',', ':'))}")
+        PY
+          )"
+          if [ -n "${CONAN_DEPS_CXXFLAGS_LINES}" ] && [ "$NEED_CONF" = "0" ]; then
+            echo "" >> ~/.conan2/profiles/default
+            echo "[conf]" >> ~/.conan2/profiles/default
+          fi
+          if [ -n "${CONAN_DEPS_CXXFLAGS_LINES}" ]; then
+            printf '%s\n' "${CONAN_DEPS_CXXFLAGS_LINES}" >> ~/.conan2/profiles/default
+          fi
         fi
 
         # Display profile for verification

.github/workflows/build-in-docker.yml

@@ -15,6 +15,9 @@ env:
 
 jobs:
   checkout:
+    # build publishes to build.xahau.tech, so this workflow only runs from
+    # Xahau/xahaud. build and tests are skipped along with this job.
+    if: github.repository == 'Xahau/xahaud'
     runs-on: [self-hosted, vanity]
     outputs:
       checkout_path: ${{ steps.vars.outputs.checkout_path }}
@@ -86,10 +89,16 @@ jobs:
   cleanup:
     runs-on: [self-hosted, xahaud-build]
     needs: [tests, checkout]
-    if: always()
+    if: always() && github.repository == 'Xahau/xahaud'
     steps:
       - name: Cleanup workspace
         run: |
           CHECKOUT_PATH="${{ needs.checkout.outputs.checkout_path }}"
+          # A run cancelled before checkout has no path; an empty one would
+          # make the rm below delete every run's checkout on the runner.
+          if [[ -z "${CHECKOUT_PATH}" ]]; then
+            echo "No checkout path (cancelled before checkout); nothing to clean"
+            exit 0
+          fi
           echo "Cleaning workspace for ${CHECKOUT_PATH}"
           rm -rf "${{ github.workspace }}/${CHECKOUT_PATH}"

.github/workflows/check-genesis-hooks.yml

@@ -0,0 +1,107 @@
+name: Check Genesis Hooks
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  check-genesis-hooks:
+    runs-on: ubuntu-24.04
+    env:
+      CLANG_VERSION: 18
+    name: Verify xahau.h is in sync with genesis hooks
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      # Install binaryen from GitHub Releases (pinned to version 100)
+      - name: Install binaryen (version 100)
+        run: |
+          curl -LO https://github.com/WebAssembly/binaryen/releases/download/version_100/binaryen-version_100-x86_64-linux.tar.gz
+          tar -xzf binaryen-version_100-x86_64-linux.tar.gz
+          sudo cp binaryen-version_100/bin/* /usr/local/bin/
+          wasm-opt --version
+
+      - name: Install clang-format
+        run: |
+          codename=$( lsb_release --codename --short )
+          sudo tee /etc/apt/sources.list.d/llvm.list >/dev/null <<EOF
+          deb http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
+          deb-src http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
+          EOF
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add
+          sudo apt-get update
+          sudo apt-get install clang-format-${CLANG_VERSION}
+          clang-format --version
+
+      # Install wasienv (WebAssembly SDK)
+      - name: Install wasienv
+        run: |
+          # Download install.sh
+          curl -o /tmp/wasienv-install.sh https://raw.githubusercontent.com/wasienv/wasienv/master/install.sh
+          
+          # Replace /bin to /local/bin
+          sed -i 's|/bin|/local/bin|g' /tmp/wasienv-install.sh
+
+          # Execute the installed script
+          bash /tmp/wasienv-install.sh
+
+      # Add wasienv to PATH for subsequent steps
+      - name: Setup wasienv
+        run: |
+          echo "$HOME/.wasienv/bin" >> $GITHUB_PATH
+          wasmcc -v || true
+
+      # Build and install hook-cleaner tool
+      - name: Build and install hook-cleaner
+        run: |
+          git clone https://github.com/richardah/hook-cleaner-c.git /tmp/hook-cleaner
+          cd /tmp/hook-cleaner
+          make
+          cp hook-cleaner /usr/local/bin/
+          chmod +x /usr/local/bin/hook-cleaner
+
+      # Build and install guard_checker tool
+      - name: Build and install guard_checker
+        run: |
+          cd include/xrpl/hook
+          make
+          cp guard_checker /usr/local/bin/
+          chmod +x /usr/local/bin/guard_checker
+
+      # Verify all required tools are available
+      - name: Verify required tools
+        run: |
+          echo "Checking tool availability..."
+          command -v wasmcc || (echo "Error: wasmcc not found" && exit 1)
+          command -v wasm-opt || (echo "Error: wasm-opt not found" && exit 1)
+          command -v hook-cleaner || (echo "Error: hook-cleaner not found" && exit 1)
+          command -v guard_checker || (echo "Error: guard_checker not found" && exit 1)
+          command -v xxd || (echo "Error: xxd not found" && exit 1)
+          command -v clang-format || (echo "Error: clang-format not found" && exit 1)
+          echo "All tools verified successfully"
+
+      # Execute build script to regenerate xahau.h
+      - name: Run build_xahau_h.sh
+        run: |
+          cd hook/genesis
+          ./build_xahau_h.sh
+
+      # Check if xahau.h has changed (fail if out of sync)
+      - name: Verify xahau.h is in sync
+        run: |
+          if ! git diff --exit-code include/xrpl/hook/xahau.h; then
+            echo ""
+            echo "❌ ERROR: xahau.h is out of sync with genesis hooks"
+            echo ""
+            echo "The generated xahau.h differs from the committed version."
+            echo "Please run the following command and commit the changes:"
+            echo ""
+            echo "    cd hook/genesis && ./build_xahau_h.sh"
+            echo ""
+            echo "Diff:"
+            git diff include/xrpl/hook/xahau.h
+            exit 1
+          fi
+          echo "✅ xahau.h is in sync with genesis hooks"

.github/workflows/clang-format.yml

@@ -20,7 +20,7 @@ jobs:
         sudo apt-get update
         sudo apt-get install clang-format-${CLANG_VERSION}
     - name: Format first-party sources
-      run: find include src -type f \( -name '*.cpp' -o -name '*.hpp' -o -name '*.h' -o -name '*.ipp' \) -not -path "src/magic/magic_enum.h" -exec clang-format-${CLANG_VERSION} -i {} +
+      run: find include src -type f \( -name '*.cpp' -o -name '*.hpp' -o -name '*.h' -o -name '*.ipp' \) -exec clang-format-${CLANG_VERSION} -i {} +
     - name: Check for differences
       id: assert
       run: |

.github/workflows/levelization.yml

@@ -10,7 +10,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Check levelization
-      run: Builds/levelization/levelization.sh
+      run: python Builds/levelization/levelization.py
     - name: Check for differences
       id: assert
       run: |
@@ -40,7 +40,7 @@ jobs:
           To fix it, you can do one of two things:
           1. Download and apply the patch generated as an artifact of this
              job to your repo, commit, and push.
-          2. Run './Builds/levelization/levelization.sh' in your repo,
+          2. Run 'python Builds/levelization/levelization.py' in your repo,
              commit, and push.
 
           See Builds/levelization/README.md for more info.

.github/workflows/verify-generated-headers.yml

@@ -18,6 +18,10 @@ jobs:
             generator: bash ./hook/generate_sfcodes.sh
           - target: hook/tts.h
             generator: ./hook/generate_tts.sh
+          - target: hook/ls_flags.h
+            generator: ./hook/generate_lsflags.sh
+          - target: hook/tx_flags.h
+            generator: ./hook/generate_txflags.sh
     runs-on: ubuntu-24.04
     env:
       CLANG_VERSION: 18

.github/workflows/xahau-ga-macos.yml

@@ -107,6 +107,9 @@ jobs:
           compiler: apple-clang
           compiler_version: ${{ steps.detect-compiler.outputs.compiler_version }}
           stdlib: libcxx
+          # grpc 1.50.1 trips clang-19+ -Werror=missing-template-arg-list-after-template-kw
+          # on Apple Clang. Drop when grpc is bumped past the fix.
+          conan_deps_cxxflags: '{"grpc/*":["-Wno-missing-template-arg-list-after-template-kw"]}'
 
       - name: Build
         uses: ./.github/actions/xahau-ga-build

.github/workflows/xahau-ga-nix.yml

@@ -57,8 +57,9 @@ jobs:
                   "cc": "gcc-11",
                   "cxx": "g++-11",
                   "compiler_version": 11,
-                  "stdlib": "libstdcxx",
-                  "configuration": "Debug"
+                  "stdlib": "default",
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   "compiler_id": "gcc-13-libstdcxx",
@@ -66,8 +67,31 @@ jobs:
                   "cc": "gcc-13",
                   "cxx": "g++-13",
                   "compiler_version": 13,
-                  "stdlib": "libstdcxx",
-                  "configuration": "Debug"
+                  "stdlib": "default",
+                  "configuration": "Debug",
+                  "job_type": "build"
+              },
+              {
+                  # Latest stable Clang for the most accurate source-based
+                  # coverage mapping (newer language features, fewer bugs in
+                  # llvm-cov region inference). Pulled from apt.llvm.org since
+                  # Ubuntu 24.04 default repos cap at clang-18.
+                  "compiler_id": "clang-20-libcxx",
+                  "compiler": "clang",
+                  "cc": "clang-20",
+                  "cxx": "clang++-20",
+                  "compiler_version": 20,
+                  "stdlib": "libcxx",
+                  "configuration": "Debug",
+                  "job_type": "coverage",
+                  "coverage_tool": "llvm",
+                  "coverage_format": "lcov",
+                  # grpc 1.50.1 uses `Foo::template Bar(...)` without an
+                  # angle-bracket arg list; clang-19+ promoted that to
+                  # -Werror. Drop when grpc is bumped past the fix.
+                  "conan_deps_cxxflags": {
+                      "grpc/*": ["-Wno-missing-template-arg-list-after-template-kw"]
+                  }
               },
               {
                   "compiler_id": "clang-14-libstdcxx-gcc11",
@@ -77,7 +101,8 @@ jobs:
                   "compiler_version": 14,
                   "stdlib": "libstdcxx",
                   "clang_gcc_toolchain": 11,
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   "compiler_id": "clang-16-libstdcxx-gcc13",
@@ -87,7 +112,8 @@ jobs:
                   "compiler_version": 16,
                   "stdlib": "libstdcxx",
                   "clang_gcc_toolchain": 13,
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   "compiler_id": "clang-17-libcxx",
@@ -96,7 +122,8 @@ jobs:
                   "cxx": "clang++-17",
                   "compiler_version": 17,
                   "stdlib": "libcxx",
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   # Clang 18 - testing if it's faster than Clang 17 with libc++
@@ -107,14 +134,16 @@ jobs:
                   "cxx": "clang++-18",
                   "compiler_version": 18,
                   "stdlib": "libcxx",
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               }
           ]
           
           # Minimal matrix for PRs and feature branches
           minimal_matrix = [
               full_matrix[1],  # gcc-13 (middle-ground gcc)
-              full_matrix[2]   # clang-14 (mature, stable clang)
+              full_matrix[2],  # clang-20 llvm-cov coverage
+              full_matrix[3]   # clang-14 (mature, stable clang)
           ]
           
           # Determine which matrix to use based on the target branch
@@ -189,14 +218,21 @@ jobs:
           # Select the appropriate matrix
           if use_full:
               if force_full:
-                  print(f"Using FULL matrix (6 configs) - forced by [ci-nix-full-matrix] tag")
+                  print(f"Using FULL matrix (7 configs (build x6 + clang-20 llvm-cov coverage)) - forced by [ci-nix-full-matrix] tag")
               else:
-                  print(f"Using FULL matrix (6 configs) - targeting main branch")
+                  print(f"Using FULL matrix (7 configs (build x6 + clang-20 llvm-cov coverage)) - targeting main branch")
               matrix = full_matrix
           else:
-              print(f"Using MINIMAL matrix (2 configs) - feature branch/PR")
+              print(f"Using MINIMAL matrix (3 configs) - feature branch/PR")
               matrix = minimal_matrix
-          
+
+          # Add runs_on based on job_type
+          for entry in matrix:
+              if entry.get("job_type") == "coverage":
+                  entry["runs_on"] = '["self-hosted", "generic", 24.04]'
+              else:
+                  entry["runs_on"] = '["self-hosted", "generic", 20.04]'
+
           # Output the matrix as JSON
           output = json.dumps({"include": matrix})
           with open(os.environ['GITHUB_OUTPUT'], 'a') as f:
@@ -204,7 +240,10 @@ jobs:
 
   build:
     needs: matrix-setup
-    runs-on: [self-hosted, generic, 20.04]
+    runs-on: ${{ fromJSON(matrix.runs_on) }}
+    permissions:
+      id-token: write
+      contents: read
     container:
       image: ubuntu:24.04
       volumes:
@@ -229,11 +268,27 @@ jobs:
 
       - name: Install build dependencies
         run: |
+          # Bump apt's default 3 retries; papers over short upstream blips
+          # like the recurring ppa.launchpadcontent.net outages.
+          echo 'Acquire::Retries "5";' > /etc/apt/apt.conf.d/80-retries
           apt-get update
           apt-get install -y software-properties-common
           add-apt-repository ppa:ubuntu-toolchain-r/test -y
+
+          # apt.llvm.org for Clang versions newer than what Ubuntu 24.04 ships
+          # (24.04 default repos cap at clang-18). The bootstrap script adds
+          # the LLVM apt source for the requested version and runs apt-get update.
+          if [ "${{ matrix.compiler }}" = "clang" ] && [ "${{ matrix.compiler_version }}" -ge 19 ]; then
+            apt-get install -y wget gnupg lsb-release
+            wget -qO /tmp/llvm.sh https://apt.llvm.org/llvm.sh
+            chmod +x /tmp/llvm.sh
+            # `all` installs clang + libllvm + lldb + lld + the llvm-N package
+            # (which provides llvm-profdata-N / llvm-cov-N for coverage runs).
+            /tmp/llvm.sh ${{ matrix.compiler_version }} all
+          fi
+
           apt-get update
-          apt-get install -y python3 python-is-python3 pipx
+          apt-get install -y git python3 python-is-python3 pipx
           pipx ensurepath
           apt-get install -y cmake ninja-build ${{ matrix.cc }} ${{ matrix.cxx }} ccache
           apt-get install -y perl # for openssl build
@@ -304,6 +359,18 @@ jobs:
           pipx install "conan>=2.0,<3"
           echo "$HOME/.local/bin" >> $GITHUB_PATH
 
+          # Install coverage tooling
+          if [ "${{ matrix.job_type }}" = "coverage" ]; then
+            apt-get install -y curl lcov
+            if [ "${{ matrix.coverage_tool }}" = "llvm" ]; then
+              # Native LLVM source-based coverage: llvm-profdata + llvm-cov.
+              # The clang-N package doesn't pull these in; the llvm-N package does.
+              apt-get install -y "llvm-${{ matrix.compiler_version }}"
+            else
+              pipx install "gcovr>=7,<9"
+            fi
+          fi
+
       - name: Check environment
         run: |
           echo "PATH:"
@@ -313,6 +380,18 @@ jobs:
           which ${{ matrix.cc }} && ${{ matrix.cc }} --version || echo "${{ matrix.cc }} not found"
           which ${{ matrix.cxx }} && ${{ matrix.cxx }} --version || echo "${{ matrix.cxx }} not found"
           which ccache && ccache --version || echo "ccache not found"
+
+          # Check coverage tooling
+          if [ "${{ matrix.job_type }}" = "coverage" ]; then
+            if [ "${{ matrix.coverage_tool }}" = "llvm" ]; then
+              which "llvm-profdata-${{ matrix.compiler_version }}" && "llvm-profdata-${{ matrix.compiler_version }}" --version || echo "llvm-profdata not found"
+              which "llvm-cov-${{ matrix.compiler_version }}" && "llvm-cov-${{ matrix.compiler_version }}" --version || echo "llvm-cov not found"
+            else
+              which gcov && gcov --version || echo "gcov not found"
+              which gcovr && gcovr --version || echo "gcovr not found"
+            fi
+          fi
+
           echo "---- Full Environment ----"
           env
 
@@ -337,9 +416,11 @@ jobs:
           cc: ${{ matrix.cc }}
           cxx: ${{ matrix.cxx }}
           stdlib: ${{ matrix.stdlib }}
+          conan_deps_cxxflags: ${{ matrix.conan_deps_cxxflags && toJson(matrix.conan_deps_cxxflags) || '{}' }}
           gha_cache_enabled: 'false' # Disable caching for self hosted runner
 
       - name: Build
+        if: matrix.job_type == 'build'
         uses: ./.github/actions/xahau-ga-build
         with:
           generator: Ninja
@@ -354,7 +435,28 @@ jobs:
           clang_gcc_toolchain: ${{ matrix.clang_gcc_toolchain || '' }}
           ccache_max_size: '100G'
 
+      - name: Build (Coverage)
+        if: matrix.job_type == 'coverage'
+        uses: ./.github/actions/xahau-ga-build
+        with:
+          generator: Ninja
+          configuration: ${{ matrix.configuration }}
+          build_dir: ${{ env.build_dir }}
+          cc: ${{ matrix.cc }}
+          cxx: ${{ matrix.cxx }}
+          gcov: ${{ matrix.gcov }}
+          compiler-id: ${{ matrix.compiler_id }}
+          cache_version: ${{ env.CACHE_VERSION }}
+          main_branch: ${{ env.MAIN_BRANCH_NAME }}
+          stdlib: ${{ matrix.stdlib }}
+          # Coverage builds are slower due to instrumentation; use fewer parallel jobs to avoid flakiness.
+          # Use *_FLAGS_DEBUG so the build action's stdlib flag (e.g. -stdlib=libc++) in CMAKE_CXX_FLAGS isn't clobbered.
+          cmake-args: '-Dcoverage=ON -Dcoverage_tool=${{ matrix.coverage_tool }} -Dcoverage_format=${{ matrix.coverage_format }} -Dcoverage_test_parallelism=$(($(nproc)/2)) -DCODE_COVERAGE_VERBOSE=ON -DCMAKE_CXX_FLAGS_DEBUG="-g -O0" -DCMAKE_C_FLAGS_DEBUG="-g -O0"'
+          cmake-target: 'coverage'
+          ccache_max_size: '100G'
+
       - name: Set artifact name
+        if: matrix.job_type == 'build'
         id: set-artifact-name
         run: |
           ARTIFACT_NAME="build-output-nix-${{ github.run_id }}-${{ matrix.compiler }}-${{ matrix.configuration }}"
@@ -367,6 +469,7 @@ jobs:
           ls -la ${{ env.build_dir }} || echo "Build directory not found or empty"
 
       - name: Run tests
+        if: matrix.job_type == 'build'
         run: |
           # Ensure the binary exists before trying to run
           if [ -f "${{ env.build_dir }}/rippled" ]; then
@@ -375,3 +478,46 @@ jobs:
              echo "Error: rippled executable not found in ${{ env.build_dir }}"
              exit 1
           fi
+
+      # Coverage-specific steps
+      - name: Move coverage report
+        if: matrix.job_type == 'coverage'
+        shell: bash
+        env:
+          COVERAGE_FILE: ${{ matrix.coverage_tool == 'llvm' && 'coverage.lcov' || 'coverage.xml' }}
+        run: |
+          mv "${{ env.build_dir }}/${COVERAGE_FILE}" ./
+          echo "COVERAGE_FILE=${COVERAGE_FILE}" >> "$GITHUB_ENV"
+
+      - name: Archive coverage report
+        if: matrix.job_type == 'coverage'
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.COVERAGE_FILE }}-${{ matrix.compiler_id }}
+          path: ${{ env.COVERAGE_FILE }}
+          retention-days: 30
+
+      - name: Upload coverage report
+        if: matrix.job_type == 'coverage' && github.repository == 'Xahau/xahaud'
+        uses: codecov/codecov-action@v5
+        with:
+          files: ${{ env.COVERAGE_FILE }}
+          flags: ${{ matrix.coverage_tool }}
+          fail_ci_if_error: true
+          disable_search: true
+          verbose: true
+          plugins: noop
+          use_oidc: true
+
+      - name: Export server definitions
+        if: matrix.job_type == 'build' && matrix.compiler_id == 'gcc-13-libstdcxx'
+        run: |
+          ${{ env.build_dir }}/rippled --definitions | python3 -m json.tool > server_definitions.json
+
+      - name: Upload server definitions
+        if: matrix.job_type == 'build' && matrix.compiler_id == 'gcc-13-libstdcxx'
+        uses: actions/upload-artifact@v7
+        with:
+          name: server-definitions
+          path: server_definitions.json
+          archive: false

.gitignore

@@ -53,6 +53,9 @@ Builds/levelization/results/paths.txt
 Builds/levelization/results/includes/
 Builds/levelization/results/includedby/
 
+# Python
+__pycache__
+
 # Ignore tmp directory.
 tmp
 

Builds/levelization/README.md

@@ -50,7 +50,7 @@ that `test` code should *never* be included in `ripple` code.)
 
 ## Validation
 
-The [levelization.sh](levelization.sh) script takes no parameters,
+The [levelization.py](levelization.py) script takes no parameters,
 reads no environment variables, and can be run from any directory,
 as long as it is in the expected location in the rippled repo.
 It can be run at any time from within a checked out repo, and will
@@ -84,7 +84,7 @@ It generates many files of [results](results):
   Github Actions workflow to test that levelization loops haven't
   changed.  Unfortunately, if changes are detected, it can't tell if
   they are improvements or not, so if you have resolved any issues or
-  done anything else to improve levelization, run `levelization.sh`,
+  done anything else to improve levelization, run `levelization.py`,
   and commit the updated results.
 
 The  `loops.txt` and `ordering.txt` files relate the modules
@@ -108,7 +108,7 @@ The committed files hide the detailed values intentionally, to
 prevent false alarms and merging issues, and because it's easy to
 get those details locally.
 
-1. Run `levelization.sh`
+1. Run `levelization.py`
 2. Grep the modules in `paths.txt`.
    * For example, if a cycle is found `A ~= B`, simply `grep -w
      A Builds/levelization/results/paths.txt | grep -w B`

Builds/levelization/levelization.py

@@ -0,0 +1,283 @@
+#!/usr/bin/env python3
+
+"""
+Usage: levelization.py
+This script takes no parameters, and can be called from any directory in the file system.
+"""
+
+import os
+import re
+import sys
+from collections import defaultdict
+from pathlib import Path
+
+# Compile regex patterns once at module level
+INCLUDE_PATTERN = re.compile(r"^\s*#include.*/.*\.h")
+INCLUDE_PATH_PATTERN = re.compile(r'[<"]([^>"]+)[>"]')
+
+
+def dictionary_sort_key(s):
+    """
+    Create a sort key that mimics 'sort -d' (dictionary order).
+    Dictionary order only considers blanks and alphanumeric characters.
+    """
+    return "".join(c for c in s if c.isalnum() or c.isspace())
+
+
+def get_level(file_path):
+    """
+    Extract the level from a file path (second and third directory components).
+    Equivalent to bash: cut -d/ -f 2,3
+
+    Examples:
+        src/ripple/app/main.cpp -> ripple.app
+        src/test/app/Import_test.cpp -> test.app
+    """
+    parts = file_path.split("/")
+
+    if len(parts) >= 3:
+        level = f"{parts[1]}/{parts[2]}"
+    elif len(parts) >= 2:
+        level = f"{parts[1]}/toplevel"
+    else:
+        level = file_path
+
+    # If the "level" indicates a file, cut off the filename
+    if "." in level.split("/")[-1]:
+        # Use the "toplevel" label as a workaround for `sort`
+        # inconsistencies between different utility versions
+        level = level.rsplit("/", 1)[0] + "/toplevel"
+
+    return level.replace("/", ".")
+
+
+def extract_include_level(include_line):
+    """
+    Extract the include path from an #include directive.
+    Gets the first two directory components from the include path.
+    Equivalent to bash: cut -d/ -f 1,2
+
+    Examples:
+        #include <ripple/basics/base_uint.h> -> ripple.basics
+        #include "ripple/app/main/Application.h" -> ripple.app
+    """
+    match = INCLUDE_PATH_PATTERN.search(include_line)
+    if not match:
+        return None
+
+    include_path = match.group(1)
+    parts = include_path.split("/")
+
+    if len(parts) >= 2:
+        include_level = f"{parts[0]}/{parts[1]}"
+    else:
+        include_level = include_path
+
+    # If the "includelevel" indicates a file, cut off the filename
+    if "." in include_level.split("/")[-1]:
+        include_level = include_level.rsplit("/", 1)[0] + "/toplevel"
+
+    return include_level.replace("/", ".")
+
+
+def find_repository_directories(start_path, depth_limit=10):
+    """
+    Find the repository root by looking for src or include folders.
+    Walks up the directory tree from the start path.
+    """
+    current = start_path.resolve()
+
+    for _ in range(depth_limit):
+        src_path = current / "src"
+        include_path = current / "include"
+        has_src = src_path.exists()
+        has_include = include_path.exists()
+
+        if has_src or has_include:
+            dirs = []
+            if has_src:
+                dirs.append(src_path)
+            if has_include:
+                dirs.append(include_path)
+            return current, dirs
+
+        parent = current.parent
+        if parent == current:
+            break
+        current = parent
+
+    raise RuntimeError(
+        "Could not find repository root. "
+        "Expected to find a directory containing 'src' and/or 'include' folders."
+    )
+
+
+def main():
+    script_dir = Path(__file__).parent.resolve()
+    os.chdir(script_dir)
+
+    # Clean up and create results directory.
+    results_dir = script_dir / "results"
+    if results_dir.exists():
+        import shutil
+
+        shutil.rmtree(results_dir)
+    results_dir.mkdir()
+
+    # Find the repository root.
+    try:
+        repo_root, scan_dirs = find_repository_directories(script_dir)
+        print(f"Found repository root: {repo_root}")
+        for scan_dir in scan_dirs:
+            print(f"  Scanning: {scan_dir.relative_to(repo_root)}")
+    except RuntimeError as e:
+        print(f"Error: {e}", file=sys.stderr)
+        sys.exit(1)
+
+    # Find all #include directives.
+    print("\nScanning for raw includes...")
+    raw_includes = []
+    rawincludes_file = results_dir / "rawincludes.txt"
+
+    with open(rawincludes_file, "w", buffering=8192) as raw_f:
+        for dir_path in scan_dirs:
+            for file_path in dir_path.rglob("*"):
+                if not file_path.is_file():
+                    continue
+                try:
+                    rel_path_str = str(file_path.relative_to(repo_root))
+                    with open(
+                        file_path, "r", encoding="utf-8", errors="ignore", buffering=8192
+                    ) as f:
+                        for line in f:
+                            if "#include" not in line or "boost" in line:
+                                continue
+                            if INCLUDE_PATTERN.match(line):
+                                line_stripped = line.strip()
+                                entry = f"{rel_path_str}:{line_stripped}\n"
+                                print(entry, end="")
+                                raw_f.write(entry)
+                                raw_includes.append((rel_path_str, line_stripped))
+                except Exception as e:
+                    print(f"Error reading {file_path}: {e}", file=sys.stderr)
+
+    # Build levelization paths and count directly.
+    print("Build levelization paths")
+    path_counts = defaultdict(int)
+
+    for file_path, include_line in raw_includes:
+        include_level = extract_include_level(include_line)
+        if not include_level:
+            continue
+        level = get_level(file_path)
+        if level != include_level:
+            path_counts[(level, include_level)] += 1
+
+    # Sort and deduplicate paths.
+    print("Sort and deduplicate paths")
+    sorted_items = sorted(
+        path_counts.items(),
+        key=lambda x: (dictionary_sort_key(x[0][0]), dictionary_sort_key(x[0][1])),
+    )
+
+    paths_file = results_dir / "paths.txt"
+    with open(paths_file, "w") as f:
+        for (level, include_level), count in sorted_items:
+            line = f"{count:7} {level} {include_level}\n"
+            print(line.rstrip())
+            f.write(line)
+
+    # Split into flat-file database.
+    print("Split into flat-file database")
+    includes_dir = results_dir / "includes"
+    includedby_dir = results_dir / "includedby"
+    includes_dir.mkdir()
+    includedby_dir.mkdir()
+
+    includes_data = defaultdict(list)
+    includedby_data = defaultdict(list)
+
+    for (level, include_level), count in sorted_items:
+        includes_data[level].append((include_level, count))
+        includedby_data[include_level].append((level, count))
+
+    for level in sorted(includes_data.keys(), key=dictionary_sort_key):
+        with open(includes_dir / level, "w") as f:
+            for include_level, count in includes_data[level]:
+                line = f"{include_level} {count}\n"
+                print(line.rstrip())
+                f.write(line)
+
+    for include_level in sorted(includedby_data.keys(), key=dictionary_sort_key):
+        with open(includedby_dir / include_level, "w") as f:
+            for level, count in includedby_data[include_level]:
+                line = f"{level} {count}\n"
+                print(line.rstrip())
+                f.write(line)
+
+    # Search for loops.
+    print("Search for loops")
+    loops_file = results_dir / "loops.txt"
+    ordering_file = results_dir / "ordering.txt"
+
+    # Pre-load all include files into memory for fast lookup.
+    includes_cache = {}
+    includes_lookup = {}
+
+    for include_file in sorted(includes_dir.iterdir(), key=lambda p: p.name):
+        if not include_file.is_file():
+            continue
+        includes_cache[include_file.name] = []
+        includes_lookup[include_file.name] = {}
+        with open(include_file, "r") as f:
+            for line in f:
+                parts = line.strip().split()
+                if len(parts) >= 2:
+                    name, count = parts[0], int(parts[1])
+                    includes_cache[include_file.name].append((name, count))
+                    includes_lookup[include_file.name][name] = count
+
+    loops_found = set()
+
+    with open(loops_file, "w", buffering=8192) as loops_f, open(
+        ordering_file, "w", buffering=8192
+    ) as ordering_f:
+        for source in sorted(includes_cache.keys()):
+            for include, include_freq in includes_cache[source]:
+                if include not in includes_lookup:
+                    continue
+
+                source_freq = includes_lookup[include].get(source)
+
+                if source_freq is not None:
+                    loop_key = tuple(sorted([source, include]))
+                    if loop_key in loops_found:
+                        continue
+                    loops_found.add(loop_key)
+
+                    loops_f.write(f"Loop: {source} {include}\n")
+
+                    diff = include_freq - source_freq
+                    if diff > 3:
+                        loops_f.write(f"  {source} > {include}\n\n")
+                    elif diff < -3:
+                        loops_f.write(f"  {include} > {source}\n\n")
+                    elif source_freq == include_freq:
+                        loops_f.write(f"  {include} == {source}\n\n")
+                    else:
+                        loops_f.write(f"  {include} ~= {source}\n\n")
+                else:
+                    ordering_f.write(f"{source} > {include}\n")
+
+    # Print results.
+    print("\nOrdering:")
+    with open(ordering_file, "r") as f:
+        print(f.read(), end="")
+
+    print("\nLoops:")
+    with open(loops_file, "r") as f:
+        print(f.read(), end="")
+
+
+if __name__ == "__main__":
+    main()

Builds/levelization/levelization.sh

@@ -1,130 +0,0 @@
-#!/bin/bash
-
-# Usage: levelization.sh
-# This script takes no parameters, reads no environment variables,
-# and can be run from any directory, as long as it is in the expected
-# location in the repo.
-
-pushd $( dirname $0 )
-
-if [ -v PS1 ]
-then
-  # if the shell is interactive, clean up any flotsam before analyzing
-  git clean -ix
-fi
-
-# Ensure all sorting is ASCII-order consistently across platforms.
-export LANG=C
-
-rm -rfv results
-mkdir results
-includes="$( pwd )/results/rawincludes.txt"
-pushd ../..
-echo Raw includes:
-grep -r '^[ ]*#include.*/.*\.h' include src | \
-    grep -v boost | tee ${includes}
-popd
-pushd results
-
-oldifs=${IFS}
-IFS=:
-mkdir includes
-mkdir includedby
-echo Build levelization paths
-exec 3< ${includes} # open rawincludes.txt for input
-while read -r -u 3 file include
-do
-    level=$( echo ${file} | cut -d/ -f 2,3 )
-    # If the "level" indicates a file, cut off the filename
-    if [[ "${level##*.}" != "${level}" ]]
-    then
-        # Use the "toplevel" label as a workaround for `sort`
-        # inconsistencies between different utility versions
-        level="$( dirname ${level} )/toplevel"
-    fi
-    level=$( echo ${level} | tr '/' '.' )
-
-    includelevel=$( echo ${include} | sed 's/.*["<]//; s/[">].*//' | \
-        cut -d/ -f 1,2 )
-    if [[ "${includelevel##*.}" != "${includelevel}" ]]
-    then
-        # Use the "toplevel" label as a workaround for `sort`
-        # inconsistencies between different utility versions
-        includelevel="$( dirname ${includelevel} )/toplevel"
-    fi
-    includelevel=$( echo ${includelevel} | tr '/' '.' )
-
-    if [[ "$level" != "$includelevel" ]]
-    then
-        echo $level $includelevel | tee -a paths.txt
-    fi
-done
-echo Sort and dedup paths
-sort -ds paths.txt | uniq -c | tee sortedpaths.txt
-mv sortedpaths.txt paths.txt
-exec 3>&- #close fd 3
-IFS=${oldifs}
-unset oldifs
-
-echo Split into flat-file database
-exec 4<paths.txt # open paths.txt for input
-while read -r -u 4 count level include
-do
-    echo ${include} ${count} | tee -a includes/${level}
-    echo ${level} ${count} | tee -a includedby/${include}
-done
-exec 4>&- #close fd 4
-
-loops="$( pwd )/loops.txt"
-ordering="$( pwd )/ordering.txt"
-pushd includes
-echo Search for loops
-# Redirect stdout to a file
-exec 4>&1
-exec 1>"${loops}"
-for source in *
-do
-  if [[ -f "$source" ]]
-  then
-    exec 5<"${source}" # open for input
-    while read -r -u 5 include includefreq
-    do
-      if [[ -f $include ]]
-      then
-        if grep -q -w $source $include
-        then
-          if grep -q -w "Loop: $include $source" "${loops}"
-          then
-            continue
-          fi
-          sourcefreq=$( grep -w $source $include | cut -d\  -f2 )
-          echo "Loop: $source $include"
-          # If the counts are close, indicate that the two modules are
-          # on the same level, though they shouldn't be
-          if [[ $(( $includefreq - $sourcefreq )) -gt 3 ]]
-          then
-              echo -e "  $source > $include\n"
-          elif [[ $(( $sourcefreq - $includefreq )) -gt 3 ]]
-          then
-              echo -e "  $include > $source\n"
-          elif [[ $sourcefreq -eq $includefreq ]]
-          then
-              echo -e "  $include == $source\n"
-          else
-              echo -e "  $include ~= $source\n"
-          fi
-        else
-          echo "$source > $include" >> "${ordering}"
-        fi
-      fi
-    done
-    exec 5>&- #close fd 5
-  fi
-done
-exec 1>&4 #close fd 1
-exec 4>&- #close fd 4
-cat "${ordering}"
-cat "${loops}"
-popd
-popd
-popd

Builds/levelization/results/ordering.txt

@@ -32,6 +32,7 @@ test.basics > xrpld.perflog
 test.basics > xrpld.rpc
 test.basics > xrpl.json
 test.basics > xrpl.protocol
+test.beast > test.unit_test
 test.beast > xrpl.basics
 test.conditions > xrpl.basics
 test.conditions > xrpld.conditions
@@ -77,6 +78,11 @@ test.ledger > xrpld.app
 test.ledger > xrpld.core
 test.ledger > xrpld.ledger
 test.ledger > xrpl.protocol
+test.net > test.toplevel
+test.net > xrpl.basics
+test.net > xrpld.core
+test.net > xrpld.net
+test.net > xrpl.json
 test.nodestore > test.jtx
 test.nodestore > test.toplevel
 test.nodestore > test.unit_test
@@ -84,15 +90,18 @@ test.nodestore > xrpl.basics
 test.nodestore > xrpld.core
 test.nodestore > xrpld.nodestore
 test.nodestore > xrpld.unity
+test.nodestore > xrpl.protocol
 test.overlay > test.jtx
 test.overlay > test.toplevel
 test.overlay > test.unit_test
 test.overlay > xrpl.basics
 test.overlay > xrpld.app
+test.overlay > xrpld.core
 test.overlay > xrpld.overlay
 test.overlay > xrpld.peerfinder
 test.overlay > xrpld.shamap
 test.overlay > xrpl.protocol
+test.overlay > xrpl.resource
 test.peerfinder > test.beast
 test.peerfinder > test.unit_test
 test.peerfinder > xrpl.basics
@@ -118,6 +127,7 @@ test.rpc > xrpld.core
 test.rpc > xrpld.net
 test.rpc > xrpld.overlay
 test.rpc > xrpld.rpc
+test.rpc > xrpld.shamap
 test.rpc > xrpl.hook
 test.rpc > xrpl.json
 test.rpc > xrpl.protocol
@@ -198,6 +208,7 @@ xrpld.rpc > xrpld.core
 xrpld.rpc > xrpld.ledger
 xrpld.rpc > xrpld.nodestore
 xrpld.rpc > xrpld.shamap
+xrpld.rpc > xrpl.hook
 xrpld.rpc > xrpl.json
 xrpld.rpc > xrpl.protocol
 xrpld.rpc > xrpl.resource

CMakeLists.txt

@@ -122,6 +122,7 @@ endif()
 find_package(nudb REQUIRED)
 find_package(date REQUIRED)
 find_package(xxHash REQUIRED)
+find_package(magic_enum REQUIRED)
 
 include(deps/WasmEdge) 
   if(TARGET nudb::core)

README.md

@@ -12,7 +12,7 @@ The server software that powers Xahau is called `xahaud` and is available in thi
 
 ### Build from Source
 
-* [Read the build instructions in our documentation](https://xahau.network/infrastructure/building-xahau)
+* [Read the build instructions in our documentation](https://xahau.network/docs/infrastructure/build-xahaud/)
 * If you encounter any issues, please [open an issue](https://github.com/xahau/xahaud/issues)
 
 ## Highlights of Xahau

build-core.sh

@@ -71,6 +71,7 @@ cmake .. -G Ninja \
   -Dxrpld=TRUE \
   -Dtests=TRUE &&
 ccache -z &&
+ccache -p &&
 ninja -j $3 && echo "=== Re-running final link with verbose output ===" && rm -f rippled && ninja -v rippled &&
 ccache -s &&
 strip -s rippled &&
@@ -94,8 +95,16 @@ if [[ "$4" == "" ]]; then
   echo "Non GH, local building, no Action runner magic"
 else
   # GH Action, runner
-  cp /io/release-build/xahaud /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
-  cp /io/release-build/release.info /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
+    if [[ "$(git rev-parse --abbrev-ref HEAD)" == "release" ]]; then
+        echo "building on the release branch... placing it in builds/candidate"
+        mkdir /data/builds/candidate
+        cp /io/release-build/xahaud /data/builds/candidate/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
+        cp /io/release-build/release.info /data/builds/candidate/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
+    else
+        echo "building non-release branch, placing it in builds root"
+        cp /io/release-build/xahaud /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
+        cp /io/release-build/release.info /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
+    fi  
   echo "Published build to: http://build.xahau.tech/"
   echo $(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
 fi

build-full.sh

@@ -12,17 +12,16 @@ echo "-- GITHUB_REPOSITORY: $1"
 echo "-- GITHUB_SHA:        $2"
 echo "-- GITHUB_RUN_NUMBER: $4"
 
-umask 0000;
+umask 0000
 
 ####
 
-cd /io;
-mkdir -p src/certs;
-curl --silent -k https://raw.githubusercontent.com/RichardAH/rippled-release-builder/main/ca-bundle/certbundle.h -o src/certs/certbundle.h;
-if [ "`grep certbundle.h src/xrpld/net/detail/RegisterSSLCerts.cpp | wc -l`" -eq "0" ]
-then
-    cp src/xrpld/net/detail/RegisterSSLCerts.cpp src/xrpld/net/detail/RegisterSSLCerts.cpp.old
-    perl -i -pe "s/^{/{
+cd /io
+mkdir -p src/certs
+curl --silent -k https://raw.githubusercontent.com/RichardAH/rippled-release-builder/main/ca-bundle/certbundle.h -o src/certs/certbundle.h
+if [ "$(grep certbundle.h src/xrpld/net/detail/RegisterSSLCerts.cpp | wc -l)" -eq "0" ]; then
+  cp src/xrpld/net/detail/RegisterSSLCerts.cpp src/xrpld/net/detail/RegisterSSLCerts.cpp.old
+  perl -i -pe "s/^{/{
     #ifdef EMBEDDED_CA_BUNDLE
     BIO *cbio = BIO_new_mem_buf(ca_bundle.data(), ca_bundle.size());
     X509_STORE  *cts = SSL_CTX_get_cert_store(ctx.native_handle());
@@ -68,15 +67,14 @@ fi
 source /opt/rh/gcc-toolset-11/enable
 export PATH=/usr/local/bin:$PATH
 export CC='/usr/lib64/ccache/gcc' &&
-export CXX='/usr/lib64/ccache/g++' &&
-echo "-- Build Rippled --" &&
-pwd &&
+  export CXX='/usr/lib64/ccache/g++' &&
+  echo "-- Build Rippled --" &&
+  pwd &&
+  echo "MOVING TO [ build-core.sh ]"
 
-echo "MOVING TO [ build-core.sh ]";
-
-printenv > .env.temp;
-cat .env.temp | grep '=' | sed s/\\\(^[^=]\\+=\\\)/\\1\\\"/g|sed s/\$/\\\"/g > .env;
-rm .env.temp;
+printenv >.env.temp
+cat .env.temp | grep '=' | sed s/\\\(^[^=]\\+=\\\)/\\1\\\"/g | sed s/\$/\\\"/g >.env
+rm .env.temp
 
 echo "Persisting ENV:"
 cat .env

cfg/xahaud-example.cfg

@@ -448,6 +448,30 @@
 #
 #
 #
+# [udp_highway]
+#
+#   0 or 1.
+#
+#   0: Disable the Xahau UDP Superhighway (XUSH). [default]
+#   1: Enable the Xahau UDP Superhighway (XUSH).
+#
+#   The UDP Superhighway is a best-effort transport that runs alongside the
+#   peer protocol. When it is enabled the server also listens for UDP
+#   datagrams on its peer port number, and every transaction it relays to its
+#   peers is also sent, over UDP, to a small random set of other servers that
+#   have the highway enabled. It never replaces the peer protocol: anything
+#   sent over the highway is also relayed normally.
+#
+#   To receive highway traffic, inbound UDP must be allowed to the peer port
+#   (in addition to inbound TCP).
+#
+#   A server that keeps its address private (peer_private = 1, or any server
+#   configured as a validator) only exchanges highway traffic with the peers
+#   listed in [ips_fixed], and never advertises highway endpoints. Fixed peers
+#   are never advertised to other servers.
+#
+#
+#
 # [peers_max]
 #
 #   The largest number of desired peer connections (incoming or outgoing).
@@ -494,7 +518,7 @@
 #
 #   Configure the maximum number of transactions to have in the job queue
 #
-#   Must be a number between 100 and 1000, defaults to 250
+#   Must be a number between 100 and 1000, defaults to 1000
 #
 #
 # [overlay]
@@ -593,7 +617,7 @@
 #       reaches or exceeds this number. After that the limit may still
 #       change, but will stay above the target. If consensus is not
 #       healthy, the limit will be clamped to this value or lower.
-#       Default: 50.
+#       Default: 1000.
 #
 #   maximum_txn_in_ledger = <number>
 #

cfg/xahaud-standalone.cfg

@@ -146,8 +146,6 @@ D686F2538F410C9D0D856788E98E3579595DAF7B38D38887F81ECAC934B06040 HooksUpdate1
 3C43D9A973AA4443EF3FC38E42DD306160FBFFDAB901CD8BAA15D09F2597EB87 NonFungibleTokensV1
 0285B7E5E08E1A8E4C15636F0591D87F73CB6A7B6452A932AD72BBC8E5D1CBE3 fixNFTokenDirV1
 36799EA497B1369B170805C078AEFE6188345F9B3E324C21E9CA3FF574E3C3D6 fixNFTokenNegOffer
-4C499D17719BB365B69010A436B64FD1A82AAB199FC1CEB06962EBD01059FB09 fixXahauV1
-215181D23BF5C173314B5FDB9C872C92DE6CC918483727DE037C0C13E7E6EE9D fixXahauV2
 0D8BF22FF7570D58598D1EF19EBB6E142AD46E59A223FD3816262FBB69345BEA Remit
 7CA0426E7F411D39BB014E57CD9E08F61DE1750F0D41FCD428D9FB80BB7596B0 ZeroB2M
 4B8466415FAB32FFA89D9DCBE166A42340115771DF611A7160F8D7439C87ECD8 fixNSDelete

cmake/CodeCoverage.cmake

@@ -95,6 +95,9 @@
 #     - replace both functions setup_target_for_coverage_gcovr_* with a single setup_target_for_coverage_gcovr
 #     - add support for all gcovr output formats
 #
+# 2024-04-03, Bronek Kozicki
+#     - add support for output formats: jacoco, clover, lcov
+#
 # USAGE:
 #
 # 1. Copy this file into your cmake modules path.
@@ -256,10 +259,10 @@ endif()
 #     BASE_DIRECTORY "../"                   # Base directory for report
 #                                            #  (defaults to PROJECT_SOURCE_DIR)
 #     FORMAT "cobertura"                     # Output format, one of:
-#                                            #  xml cobertura sonarqube json-summary
-#                                            #  json-details coveralls csv txt
-#                                            #  html-single html-nested html-details
-#                                            #  (xml is an alias to cobertura;
+#                                            #  xml cobertura sonarqube jacoco clover
+#                                            #  json-summary json-details coveralls csv
+#                                            #  txt html-single html-nested html-details
+#                                            #  lcov (xml is an alias to cobertura;
 #                                            #  if no format is set, defaults to xml)
 #     EXCLUDE "src/dir1/*" "src/dir2/*"      # Patterns to exclude (can be relative
 #                                            #  to BASE_DIRECTORY, with CMake 3.4+)
@@ -308,6 +311,8 @@ function(setup_target_for_coverage_gcovr)
             set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.txt)
         elseif(Coverage_FORMAT STREQUAL "csv")
             set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.csv)
+        elseif(Coverage_FORMAT STREQUAL "lcov")
+            set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.lcov)
         else()
             set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.xml)
         endif()
@@ -320,6 +325,14 @@ function(setup_target_for_coverage_gcovr)
         set(Coverage_FORMAT cobertura) # overwrite xml
     elseif(Coverage_FORMAT STREQUAL "sonarqube")
         list(APPEND GCOVR_ADDITIONAL_ARGS --sonarqube "${GCOVR_OUTPUT_FILE}" )
+    elseif(Coverage_FORMAT STREQUAL "jacoco")
+        list(APPEND GCOVR_ADDITIONAL_ARGS --jacoco "${GCOVR_OUTPUT_FILE}" )
+        list(APPEND GCOVR_ADDITIONAL_ARGS --jacoco-pretty )
+    elseif(Coverage_FORMAT STREQUAL "clover")
+        list(APPEND GCOVR_ADDITIONAL_ARGS --clover "${GCOVR_OUTPUT_FILE}" )
+        list(APPEND GCOVR_ADDITIONAL_ARGS --clover-pretty )
+    elseif(Coverage_FORMAT STREQUAL "lcov")
+        list(APPEND GCOVR_ADDITIONAL_ARGS --lcov "${GCOVR_OUTPUT_FILE}" )
     elseif(Coverage_FORMAT STREQUAL "json-summary")
         list(APPEND GCOVR_ADDITIONAL_ARGS --json-summary "${GCOVR_OUTPUT_FILE}" )
         list(APPEND GCOVR_ADDITIONAL_ARGS --json-summary-pretty)
@@ -380,6 +393,7 @@ function(setup_target_for_coverage_gcovr)
         ${GCOVR_PATH}
         --gcov-executable ${GCOV_TOOL}
         --gcov-ignore-parse-errors=negative_hits.warn_once_per_file
+        --gcov-ignore-parse-errors=suspicious_hits.warn_once_per_file
         -r ${BASEDIR}
         ${GCOVR_ADDITIONAL_ARGS}
         ${GCOVR_EXCLUDE_ARGS}

cmake/CodeCoverageLLVM.cmake

@@ -0,0 +1,156 @@
+#[===================================================================[
+  Native LLVM source-based code coverage helper.
+
+  Drives the -fprofile-instr-generate / -fcoverage-mapping pipeline:
+    1. Run instrumented binary with LLVM_PROFILE_FILE=...%m-%p.profraw
+    2. llvm-profdata merge -sparse  -> coverage.profdata
+    3. llvm-cov export/show/report  -> final report
+
+  Output filename per coverage_format:
+    lcov              -> coverage.lcov
+    json              -> coverage.json
+    txt | text        -> coverage.txt
+    html | html-details -> <NAME>/index.html
+#]===================================================================]
+
+include(CMakeParseArguments)
+
+# Locate llvm-profdata / llvm-cov, preferring versioned variants matching the
+# Clang we're building with so we don't accidentally pair clang-20 with
+# llvm-cov-14 (profile format mismatch -> hard failure).
+function(_find_llvm_cov_tools)
+  if(LLVM_PROFDATA_PATH AND LLVM_COV_PATH)
+    return()
+  endif()
+
+  string(REGEX MATCH "^[0-9]+" _major "${CMAKE_CXX_COMPILER_VERSION}")
+
+  set(_pd_names llvm-profdata)
+  set(_cov_names llvm-cov)
+  if(_major)
+    list(PREPEND _pd_names "llvm-profdata-${_major}")
+    list(PREPEND _cov_names "llvm-cov-${_major}")
+  endif()
+
+  # Only delegate to xcrun when the *compiler* is AppleClang. On macOS with
+  # Homebrew/system clang-N, xcrun would resolve to Xcode's llvm tools which
+  # could be a different version - exactly the mismatch we want to avoid.
+  if(APPLE AND CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
+    execute_process(COMMAND xcrun -f llvm-profdata
+      OUTPUT_VARIABLE _pd_xcrun OUTPUT_STRIP_TRAILING_WHITESPACE
+      ERROR_QUIET RESULT_VARIABLE _pd_rc)
+    if(_pd_rc EQUAL 0 AND _pd_xcrun)
+      set(LLVM_PROFDATA_PATH "${_pd_xcrun}" CACHE FILEPATH "llvm-profdata" FORCE)
+    endif()
+    execute_process(COMMAND xcrun -f llvm-cov
+      OUTPUT_VARIABLE _cov_xcrun OUTPUT_STRIP_TRAILING_WHITESPACE
+      ERROR_QUIET RESULT_VARIABLE _cov_rc)
+    if(_cov_rc EQUAL 0 AND _cov_xcrun)
+      set(LLVM_COV_PATH "${_cov_xcrun}" CACHE FILEPATH "llvm-cov" FORCE)
+    endif()
+  endif()
+
+  if(NOT LLVM_PROFDATA_PATH)
+    find_program(LLVM_PROFDATA_PATH NAMES ${_pd_names})
+  endif()
+  if(NOT LLVM_COV_PATH)
+    find_program(LLVM_COV_PATH NAMES ${_cov_names})
+  endif()
+endfunction()
+
+function(setup_target_for_coverage_llvm)
+  set(oneValueArgs NAME FORMAT)
+  set(multiValueArgs EXCLUDE EXECUTABLE EXECUTABLE_ARGS DEPENDENCIES)
+  cmake_parse_arguments(Cov "" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+  _find_llvm_cov_tools()
+  if(NOT LLVM_PROFDATA_PATH)
+    message(FATAL_ERROR "llvm-profdata not found (needed for coverage_tool=llvm)")
+  endif()
+  if(NOT LLVM_COV_PATH)
+    message(FATAL_ERROR "llvm-cov not found (needed for coverage_tool=llvm)")
+  endif()
+
+  if(NOT Cov_FORMAT)
+    set(Cov_FORMAT lcov)
+  endif()
+
+  set(_profraw_dir "${PROJECT_BINARY_DIR}/${Cov_NAME}-profraw")
+  set(_profdata    "${PROJECT_BINARY_DIR}/${Cov_NAME}.profdata")
+
+  # Resolve binary path: accept either an absolute path or a bare target name
+  # (resolved against PROJECT_BINARY_DIR). Splice the resolved path back into
+  # Cov_EXECUTABLE so the run command invokes it via absolute path - bare
+  # names aren't on PATH and the build dir isn't `.` either.
+  list(GET Cov_EXECUTABLE 0 _exec_name)
+  if(IS_ABSOLUTE "${_exec_name}")
+    set(_binary "${_exec_name}")
+  else()
+    set(_binary "${PROJECT_BINARY_DIR}/${_exec_name}")
+    list(REMOVE_AT Cov_EXECUTABLE 0)
+    list(PREPEND Cov_EXECUTABLE "${_binary}")
+  endif()
+
+  # llvm-cov takes a single -ignore-filename-regex; OR our excludes together.
+  set(_ignore_regex "")
+  foreach(EXC IN LISTS Cov_EXCLUDE)
+    if(_ignore_regex)
+      string(APPEND _ignore_regex "|")
+    endif()
+    string(APPEND _ignore_regex "${EXC}")
+  endforeach()
+  set(_filter "")
+  if(_ignore_regex)
+    set(_filter "-ignore-filename-regex='${_ignore_regex}'")
+  endif()
+
+  # Pick llvm-cov subcommand + output file for the requested format. Each
+  # branch builds a single shell command string that we'll hand to bash -c.
+  if(Cov_FORMAT STREQUAL "lcov")
+    set(_output "${PROJECT_BINARY_DIR}/coverage.lcov")
+    set(_report_sh "${LLVM_COV_PATH} export -instr-profile='${_profdata}' -format=lcov ${_filter} '${_binary}' > '${_output}'")
+  elseif(Cov_FORMAT STREQUAL "json")
+    set(_output "${PROJECT_BINARY_DIR}/coverage.json")
+    set(_report_sh "${LLVM_COV_PATH} export -instr-profile='${_profdata}' -format=text ${_filter} '${_binary}' > '${_output}'")
+  elseif(Cov_FORMAT STREQUAL "txt" OR Cov_FORMAT STREQUAL "text")
+    set(_output "${PROJECT_BINARY_DIR}/coverage.txt")
+    set(_report_sh "${LLVM_COV_PATH} report -instr-profile='${_profdata}' ${_filter} '${_binary}' > '${_output}'")
+  elseif(Cov_FORMAT STREQUAL "html" OR Cov_FORMAT STREQUAL "html-details")
+    set(_output "${PROJECT_BINARY_DIR}/${Cov_NAME}/index.html")
+    set(_report_sh "${LLVM_COV_PATH} show -instr-profile='${_profdata}' -format=html -output-dir='${PROJECT_BINARY_DIR}/${Cov_NAME}' ${_filter} '${_binary}'")
+  else()
+    message(FATAL_ERROR "coverage_tool=llvm: unsupported coverage_format '${Cov_FORMAT}' (use lcov|json|txt|html)")
+  endif()
+
+  set(_merge_sh "${LLVM_PROFDATA_PATH} merge -sparse -o '${_profdata}' '${_profraw_dir}'/*.profraw")
+
+  if(CODE_COVERAGE_VERBOSE)
+    message(STATUS "[coverage:llvm] binary:   ${_binary}")
+    message(STATUS "[coverage:llvm] profraw:  ${_profraw_dir}")
+    message(STATUS "[coverage:llvm] profdata: ${_profdata}")
+    message(STATUS "[coverage:llvm] format:   ${Cov_FORMAT}")
+    message(STATUS "[coverage:llvm] output:   ${_output}")
+    if(_ignore_regex)
+      message(STATUS "[coverage:llvm] ignore:   ${_ignore_regex}")
+    endif()
+    message(STATUS "[coverage:llvm] merge:    ${_merge_sh}")
+    message(STATUS "[coverage:llvm] report:   ${_report_sh}")
+  endif()
+
+  # %m: hash of the binary, %p: pid. Wipe the dir up front so stale profraw
+  # files can't leak into a fresh merge.
+  add_custom_target(${Cov_NAME}
+    COMMAND ${CMAKE_COMMAND} -E rm -rf "${_profraw_dir}"
+    COMMAND ${CMAKE_COMMAND} -E make_directory "${_profraw_dir}"
+    COMMAND ${CMAKE_COMMAND} -E env
+        "LLVM_PROFILE_FILE=${_profraw_dir}/rippled-%m-%p.profraw"
+        ${Cov_EXECUTABLE} ${Cov_EXECUTABLE_ARGS}
+    COMMAND bash -c "${_merge_sh}"
+    COMMAND bash -c "${_report_sh}"
+    BYPRODUCTS ${_output}
+    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    DEPENDS ${Cov_DEPENDENCIES}
+    VERBATIM
+    COMMENT "Running llvm-cov (${Cov_FORMAT}) -> ${_output}"
+  )
+endfunction()

cmake/RippledCore.cmake

@@ -54,6 +54,7 @@ add_library(xrpl.imports.main INTERFACE)
 target_link_libraries(xrpl.imports.main
   INTERFACE
     LibArchive::LibArchive
+    magic_enum::magic_enum
     OpenSSL::Crypto
     Ripple::boost
     wasmedge::wasmedge
@@ -68,6 +69,17 @@ target_link_libraries(xrpl.imports.main
     $<$<BOOL:${voidstar}>:antithesis-sdk-cpp>
 )
 
+# date-tz for enhanced logging (always linked, code is #ifdef guarded)
+if(TARGET date::date-tz)
+  target_link_libraries(xrpl.imports.main INTERFACE date::date-tz)
+endif()
+
+# BEAST_ENHANCED_LOGGING: enable for Debug builds OR when explicitly requested
+# Uses generator expression so it works with multi-config generators (Xcode, VS, Ninja Multi-Config)
+target_compile_definitions(xrpl.imports.main INTERFACE
+  $<$<OR:$<CONFIG:Debug>,$<BOOL:${BEAST_ENHANCED_LOGGING}>>:BEAST_ENHANCED_LOGGING=1>
+)
+
 include(add_module)
 include(target_link_modules)
 

cmake/RippledCov.cmake

@@ -11,6 +11,21 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
   return()
 endif()
 
+if(coverage_tool STREQUAL "llvm")
+  include(CodeCoverageLLVM)
+
+  setup_target_for_coverage_llvm(
+    NAME coverage
+    FORMAT ${coverage_format}
+    EXECUTABLE rippled
+    EXECUTABLE_ARGS --unittest$<$<BOOL:${coverage_test}>:=${coverage_test}> --unittest-jobs ${coverage_test_parallelism} --quiet --unittest-log
+    EXCLUDE "src/test" "include/xrpl/beast/test" "include/xrpl/beast/unit_test" "${CMAKE_BINARY_DIR}/pb-xrpl.libpb"
+    DEPENDENCIES rippled
+  )
+  return()
+endif()
+
+# coverage_tool == "gcov" (default): existing gcovr-driven pipeline.
 include(CodeCoverage)
 
 # The instructions for these commands come from the `CodeCoverage` module,

cmake/RippledInterface.cmake

@@ -28,15 +28,17 @@ target_compile_options (opts
     $<$<AND:$<BOOL:${is_gcc}>,$<COMPILE_LANGUAGE:CXX>>:-Wsuggest-override>
     $<$<BOOL:${is_gcc}>:-Wno-maybe-uninitialized>
     $<$<BOOL:${perf}>:-fno-omit-frame-pointer>
-    $<$<AND:$<BOOL:${is_gcc}>,$<BOOL:${coverage}>>:-g --coverage -fprofile-abs-path>
-    $<$<AND:$<BOOL:${is_clang}>,$<BOOL:${coverage}>>:-g --coverage>
+    $<$<AND:$<BOOL:${is_gcc}>,$<BOOL:${coverage}>,$<STREQUAL:${coverage_tool},gcov>>:-g --coverage -fprofile-abs-path>
+    $<$<AND:$<BOOL:${is_clang}>,$<BOOL:${coverage}>,$<STREQUAL:${coverage_tool},gcov>>:-g --coverage>
+    $<$<AND:$<BOOL:${is_clang}>,$<BOOL:${coverage}>,$<STREQUAL:${coverage_tool},llvm>>:-g -fprofile-instr-generate -fcoverage-mapping>
     $<$<BOOL:${profile}>:-pg>
     $<$<AND:$<BOOL:${is_gcc}>,$<BOOL:${profile}>>:-p>)
 
 target_link_libraries (opts
   INTERFACE
-    $<$<AND:$<BOOL:${is_gcc}>,$<BOOL:${coverage}>>:-g --coverage -fprofile-abs-path>
-    $<$<AND:$<BOOL:${is_clang}>,$<BOOL:${coverage}>>:-g --coverage>
+    $<$<AND:$<BOOL:${is_gcc}>,$<BOOL:${coverage}>,$<STREQUAL:${coverage_tool},gcov>>:-g --coverage -fprofile-abs-path>
+    $<$<AND:$<BOOL:${is_clang}>,$<BOOL:${coverage}>,$<STREQUAL:${coverage_tool},gcov>>:-g --coverage>
+    $<$<AND:$<BOOL:${is_clang}>,$<BOOL:${coverage}>,$<STREQUAL:${coverage_tool},llvm>>:-g -fprofile-instr-generate -fcoverage-mapping>
     $<$<BOOL:${profile}>:-pg>
     $<$<AND:$<BOOL:${is_gcc}>,$<BOOL:${profile}>>:-p>)
 

cmake/RippledSettings.cmake

@@ -29,13 +29,25 @@ if(is_gcc OR is_clang)
     "Unit tests parallelism for the purpose of coverage report.")
   set(coverage_format "html-details" CACHE STRING
     "Output format of the coverage report.")
+  set(coverage_tool "gcov" CACHE STRING
+    "Coverage instrumentation tool: 'gcov' (default, gcc/clang via --coverage + gcovr) or 'llvm' (clang only, native source-based coverage via -fprofile-instr-generate).")
+  set_property(CACHE coverage_tool PROPERTY STRINGS "gcov" "llvm")
+  if(NOT coverage_tool MATCHES "^(gcov|llvm)$")
+    message(FATAL_ERROR "coverage_tool must be 'gcov' or 'llvm', got '${coverage_tool}'")
+  endif()
   set(coverage_extra_args "" CACHE STRING
-    "Additional arguments to pass to gcovr.")
+    "Additional arguments to pass to gcovr (gcov tool only).")
   set(coverage_test "" CACHE STRING
     "On gcc & clang, the specific unit test(s) to run for coverage. Default is all tests.")
   if(coverage_test AND NOT coverage)
     set(coverage ON CACHE BOOL "gcc/clang only" FORCE)
   endif()
+  # Validate after coverage_test may have flipped coverage on, otherwise
+  # `-Dcoverage_tool=llvm -Dcoverage_test=Foo` on gcc would silently slip
+  # past the Clang guard and produce a broken instrumentation combo.
+  if(coverage AND coverage_tool STREQUAL "llvm" AND NOT is_clang)
+    message(FATAL_ERROR "coverage_tool=llvm requires Clang (got ${CMAKE_CXX_COMPILER_ID})")
+  endif()
   option(wextra "compile with extra gcc/clang warnings enabled" ON)
 else()
   set(profile OFF CACHE BOOL "gcc/clang only" FORCE)
@@ -112,7 +124,7 @@ option(beast_no_unit_test_inline
   "Prevents unit test definitions from being inserted into global table"
   OFF)
 option(single_io_service_thread
-  "Restricts the number of threads calling io_service::run to one. \
+  "Restricts the number of threads calling io_context::run to one. \
   This can be useful when debugging."
   OFF)
 option(boost_show_deprecated

cmake/deps/Boost.cmake

@@ -32,9 +32,9 @@ target_link_libraries(ripple_boost
     Boost::date_time
     Boost::filesystem
     Boost::json
+    Boost::process
     Boost::program_options
     Boost::regex
-    Boost::system
     Boost::iostreams
     Boost::thread)
 if(Boost_COMPILER)

conanfile.py

@@ -2,157 +2,160 @@ from conan import ConanFile
 from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
 import re
 
-class Xrpl(ConanFile):
-    name = 'xrpl'
 
-    license = 'ISC'
-    author = 'John Freeman <jfreeman@ripple.com>'
-    url = 'https://github.com/xrplf/rippled'
-    description = 'The XRP Ledger'
-    settings = 'os', 'compiler', 'build_type', 'arch'
+class Xrpl(ConanFile):
+    name = "xrpl"
+
+    license = "ISC"
+    author = "John Freeman <jfreeman@ripple.com>"
+    url = "https://github.com/xrplf/rippled"
+    description = "The XRP Ledger"
+    settings = "os", "compiler", "build_type", "arch"
     options = {
-        'assertions': [True, False],
-        'coverage': [True, False],
-        'fPIC': [True, False],
-        'jemalloc': [True, False],
-        'rocksdb': [True, False],
-        'shared': [True, False],
-        'static': [True, False],
-        'tests': [True, False],
-        'unity': [True, False],
-        'xrpld': [True, False],
-        'with_wasmedge': [True, False],
-        'tool_requires_b2': [True, False],
+        "assertions": [True, False],
+        "coverage": [True, False],
+        "fPIC": [True, False],
+        "jemalloc": [True, False],
+        "rocksdb": [True, False],
+        "shared": [True, False],
+        "static": [True, False],
+        "tests": [True, False],
+        "unity": [True, False],
+        "xrpld": [True, False],
+        "with_wasmedge": [True, False],
+        "tool_requires_b2": [True, False],
     }
 
     requires = [
-        'date/3.0.3',
-        'grpc/1.50.1',
-        'libarchive/3.7.6',
-        'nudb/2.0.8',
-        'openssl/3.6.0',
-        'soci/4.0.3@xahaud/stable',
-        'xxhash/0.8.2',
-        'zlib/1.3.1',
+        "date/3.0.3",
+        "grpc/1.50.1",
+        "libarchive/3.7.6",
+        "magic_enum/0.9.5",
+        "nudb/2.0.9",
+        "openssl/3.6.0",
+        "soci/4.0.3@xahaud/stable",
+        "xxhash/0.8.2",
+        "zlib/1.3.1",
     ]
 
     tool_requires = [
-        'protobuf/3.21.12',
+        "protobuf/3.21.12",
     ]
 
     default_options = {
-        'assertions': False,
-        'coverage': False,
-        'fPIC': True,
-        'jemalloc': False,
-        'rocksdb': True,
-        'shared': False,
-        'static': True,
-        'tests': False,
-        'unity': False,
-        'xrpld': False,
-        'with_wasmedge': True,
-        'tool_requires_b2': False,
-
-        'date/*:header_only': False,
-        'grpc/*:shared': False,
-        'grpc/*:secure': True,
-        'libarchive/*:shared': False,
-        'libarchive/*:with_acl': False,
-        'libarchive/*:with_bzip2': False,
-        'libarchive/*:with_cng': False,
-        'libarchive/*:with_expat': False,
-        'libarchive/*:with_iconv': False,
-        'libarchive/*:with_libxml2': False,
-        'libarchive/*:with_lz4': True,
-        'libarchive/*:with_lzma': False,
-        'libarchive/*:with_lzo': False,
-        'libarchive/*:with_nettle': False,
-        'libarchive/*:with_openssl': False,
-        'libarchive/*:with_pcreposix': False,
-        'libarchive/*:with_xattr': False,
-        'libarchive/*:with_zlib': False,
-        'lz4/*:shared': False,
-        'openssl/*:shared': False,
-        'protobuf/*:shared': False,
-        'protobuf/*:with_zlib': True,
-        'rocksdb/*:enable_sse': False,
-        'rocksdb/*:lite': False,
-        'rocksdb/*:shared': False,
-        'rocksdb/*:use_rtti': True,
-        'rocksdb/*:with_jemalloc': False,
-        'rocksdb/*:with_lz4': True,
-        'rocksdb/*:with_snappy': True,
-        'snappy/*:shared': False,
-        'soci/*:shared': False,
-        'soci/*:with_sqlite3': True,
-        'soci/*:with_boost': True,
-        'xxhash/*:shared': False,
+        "assertions": False,
+        "coverage": False,
+        "fPIC": True,
+        "jemalloc": False,
+        "rocksdb": True,
+        "shared": False,
+        "static": True,
+        "tests": False,
+        "unity": False,
+        "xrpld": False,
+        "with_wasmedge": True,
+        "tool_requires_b2": False,
+        "boost/*:without_cobalt": True,
+        "date/*:header_only": False,
+        "grpc/*:shared": False,
+        "grpc/*:secure": True,
+        "libarchive/*:shared": False,
+        "libarchive/*:with_acl": False,
+        "libarchive/*:with_bzip2": False,
+        "libarchive/*:with_cng": False,
+        "libarchive/*:with_expat": False,
+        "libarchive/*:with_iconv": False,
+        "libarchive/*:with_libxml2": False,
+        "libarchive/*:with_lz4": True,
+        "libarchive/*:with_lzma": False,
+        "libarchive/*:with_lzo": False,
+        "libarchive/*:with_nettle": False,
+        "libarchive/*:with_openssl": False,
+        "libarchive/*:with_pcreposix": False,
+        "libarchive/*:with_xattr": False,
+        "libarchive/*:with_zlib": False,
+        "lz4/*:shared": False,
+        "openssl/*:shared": False,
+        "protobuf/*:shared": False,
+        "protobuf/*:with_zlib": True,
+        "rocksdb/*:enable_sse": False,
+        "rocksdb/*:lite": False,
+        "rocksdb/*:shared": False,
+        "rocksdb/*:use_rtti": True,
+        "rocksdb/*:with_jemalloc": False,
+        "rocksdb/*:with_lz4": True,
+        "rocksdb/*:with_snappy": True,
+        "snappy/*:shared": False,
+        "soci/*:shared": False,
+        "soci/*:with_sqlite3": True,
+        "soci/*:with_boost": True,
+        "xxhash/*:shared": False,
     }
 
     def set_version(self):
-        path = f'{self.recipe_folder}/src/libxrpl/protocol/BuildInfo.cpp'
-        regex = r'versionString\s?=\s?\"(.*)\"'
-        with open(path, 'r') as file:
+        path = f"{self.recipe_folder}/src/libxrpl/protocol/BuildInfo.cpp"
+        regex = r"versionString\s?=\s?\"(.*)\""
+        with open(path, "r") as file:
             matches = (re.search(regex, line) for line in file)
             match = next(m for m in matches if m)
             self.version = match.group(1)
 
     def build_requirements(self):
         # These provide build tools (protoc, grpc plugins) that run during build
-        self.tool_requires('grpc/1.50.1')
+        self.tool_requires("grpc/1.50.1")
         # Explicitly require b2 (e.g. for building from source for glibc compatibility)
         if self.options.tool_requires_b2:
-            self.tool_requires('b2/5.3.2')
+            self.tool_requires("b2/5.3.2")
 
     def configure(self):
-        if self.settings.compiler == 'apple-clang':
-            self.options['boost/*'].visibility = 'global'
+        if self.settings.compiler == "apple-clang":
+            self.options["boost/*"].visibility = "global"
 
     def requirements(self):
         # Force sqlite3 version to avoid conflicts with soci
-        self.requires('sqlite3/3.47.0', override=True)
+        self.requires("sqlite3/3.47.0", override=True)
         # Force our custom snappy build for all dependencies
-        self.requires('snappy/1.1.10@xahaud/stable', override=True)
+        self.requires("snappy/1.1.10@xahaud/stable", override=True)
         # Force boost version for all dependencies to avoid conflicts
-        self.requires('boost/1.86.0', override=True)
-        self.requires('lz4/1.10.0', force=True)
+        self.requires("boost/1.91.0", override=True)
+        self.requires("lz4/1.10.0", force=True)
 
         if self.options.with_wasmedge:
-            self.requires('wasmedge/0.11.2@xahaud/stable')
+            self.requires("wasmedge/0.11.2@xahaud/stable")
         if self.options.jemalloc:
-            self.requires('jemalloc/5.3.0')
+            self.requires("jemalloc/5.3.0")
         if self.options.rocksdb:
-            self.requires('rocksdb/6.29.5')
+            self.requires("rocksdb/6.29.5")
 
     exports_sources = (
-        'CMakeLists.txt',
-        'bin/getRippledInfo',
-        'cfg/*',
-        'cmake/*',
-        'external/*',
-        'include/*',
-        'src/*',
+        "CMakeLists.txt",
+        "bin/getRippledInfo",
+        "cfg/*",
+        "cmake/*",
+        "external/*",
+        "include/*",
+        "src/*",
     )
 
     def layout(self):
         cmake_layout(self)
         # Fix this setting to follow the default introduced in Conan 1.48
         # to align with our build instructions.
-        self.folders.generators = 'build/generators'
+        self.folders.generators = "build/generators"
+
+    generators = "CMakeDeps"
 
-    generators = 'CMakeDeps'
     def generate(self):
         tc = CMakeToolchain(self)
-        tc.variables['tests'] = self.options.tests
-        tc.variables['assert'] = self.options.assertions
-        tc.variables['coverage'] = self.options.coverage
-        tc.variables['jemalloc'] = self.options.jemalloc
-        tc.variables['rocksdb'] = self.options.rocksdb
-        tc.variables['BUILD_SHARED_LIBS'] = self.options.shared
-        tc.variables['static'] = self.options.static
-        tc.variables['unity'] = self.options.unity
-        tc.variables['xrpld'] = self.options.xrpld
+        tc.variables["tests"] = self.options.tests
+        tc.variables["assert"] = self.options.assertions
+        tc.variables["coverage"] = self.options.coverage
+        tc.variables["jemalloc"] = self.options.jemalloc
+        tc.variables["rocksdb"] = self.options.rocksdb
+        tc.variables["BUILD_SHARED_LIBS"] = self.options.shared
+        tc.variables["static"] = self.options.static
+        tc.variables["unity"] = self.options.unity
+        tc.variables["xrpld"] = self.options.xrpld
         tc.generate()
 
     def build(self):
@@ -167,29 +170,29 @@ class Xrpl(ConanFile):
         cmake.install()
 
     def package_info(self):
-        libxrpl = self.cpp_info.components['libxrpl']
+        libxrpl = self.cpp_info.components["libxrpl"]
         libxrpl.libs = [
-            'xrpl',
-            'xrpl.libpb',
-            'ed25519',
-            'secp256k1',
+            "xrpl",
+            "xrpl.libpb",
+            "ed25519",
+            "secp256k1",
         ]
         # TODO: Fix the protobufs to include each other relative to
         # `include/`, not `include/ripple/proto/`.
-        libxrpl.includedirs = ['include', 'include/ripple/proto']
+        libxrpl.includedirs = ["include", "include/ripple/proto"]
         libxrpl.requires = [
-            'boost::boost',
-            'date::date',
-            'grpc::grpc++',
-            'libarchive::libarchive',
-            'lz4::lz4',
-            'nudb::nudb',
-            'openssl::crypto',
-            'protobuf::libprotobuf',
-            'soci::soci',
-            'sqlite3::sqlite',
-            'xxhash::xxhash',
-            'zlib::zlib',
+            "boost::boost",
+            "date::date",
+            "grpc::grpc++",
+            "libarchive::libarchive",
+            "lz4::lz4",
+            "nudb::nudb",
+            "openssl::crypto",
+            "protobuf::libprotobuf",
+            "soci::soci",
+            "sqlite3::sqlite",
+            "xxhash::xxhash",
+            "zlib::zlib",
         ]
         if self.options.rocksdb:
-            libxrpl.requires.append('rocksdb::librocksdb')
+            libxrpl.requires.append("rocksdb::librocksdb")

hook/extern.h

@@ -2,6 +2,9 @@
 // Generated using generate_extern.sh
 #include <stdint.h>
 #ifndef HOOK_EXTERN
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 extern int32_t __attribute__((noduplicate))
 _g(uint32_t guard_id, uint32_t maxiter);
@@ -336,5 +339,8 @@ prepare(
     uint32_t read_ptr,
     uint32_t read_len);
 
+#ifdef __cplusplus
+}
+#endif
 #define HOOK_EXTERN
 #endif  // HOOK_EXTERN

hook/generate_error.sh

@@ -9,7 +9,7 @@ ENUM_FILE="$SCRIPT_DIR/../include/xrpl/hook/Enum.h"
 echo '// For documentation please see: https://xrpl-hooks.readme.io/reference/'
 echo '// Generated using generate_error.sh'
 echo '#ifndef HOOK_ERROR_CODES'
-sed -n '/enum hook_return_code/,/};/p' "$ENUM_FILE" |
+sed -n '/enum class hook_return_code/,/};/p' "$ENUM_FILE" |
     awk '
         function ltrim(s) { sub(/^[[:space:]]+/, "", s); return s }
         function rtrim(s) { sub(/[[:space:]]+$/, "", s); return s }
@@ -31,7 +31,7 @@ sed -n '/enum hook_return_code/,/};/p' "$ENUM_FILE" |
 
         {
             line = $0
-            if (line ~ /enum[[:space:]]+hook_return_code/)
+            if (line ~ /enum[[:space:]]+class[[:space:]]+hook_return_code/)
                 next
             if (line ~ /^[[:space:]]*\{/)
                 next

hook/generate_extern.sh

@@ -11,6 +11,9 @@ APPLY_HOOK="$SCRIPT_DIR/../include/xrpl/hook/hook_api.macro"
     echo '// Generated using generate_extern.sh'
     echo '#include <stdint.h>'
     echo '#ifndef HOOK_EXTERN'
+    echo '#ifdef __cplusplus'
+    echo 'extern "C" {'
+    echo '#endif'
     echo
     awk '
         function trim(s) {
@@ -46,6 +49,9 @@ APPLY_HOOK="$SCRIPT_DIR/../include/xrpl/hook/hook_api.macro"
         }
     ' "$APPLY_HOOK"
 
+    echo '#ifdef __cplusplus'
+    echo '}'
+    echo '#endif'
     echo '#define HOOK_EXTERN'
     echo '#endif  // HOOK_EXTERN'
 } | (

hook/generate_lsflags.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+set -eu
+
+SCRIPT_DIR=$(dirname "$0")
+SCRIPT_DIR=$(cd "$SCRIPT_DIR" && pwd)
+
+RIPPLED_ROOT="$SCRIPT_DIR/../include/xrpl"
+LEDGER_FORMATS="$RIPPLED_ROOT/protocol/LedgerFormats.h"
+
+echo '// Generated using generate_lsflags.sh'
+echo ''
+echo '#ifndef HOOKLSFLAGS_INCLUDED'
+echo '#define HOOKLSFLAGS_INCLUDED 1'
+echo ''
+awk '
+    function ltrim(s) { sub(/^[[:space:]]+/, "", s); return s }
+    function rtrim(s) { sub(/[[:space:]]+$/, "", s); return s }
+    function trim(s) { return rtrim(ltrim(s)) }
+
+    function flush_group() {
+        if (entry_count > 0 && group != "") {
+            printf "enum %s {\n", group
+            for (i = 1; i <= entry_count; i++) {
+                printf "    %s,\n", entries[i]
+            }
+            printf "};\n"
+        }
+        delete entries
+        entry_count = 0
+    }
+
+    /enum LedgerSpecificFlags \{/ { inside = 1; next }
+    inside && /^\};/ { inside = 0; flush_group(); next }
+    !inside { next }
+
+    # Group header comments: // ltFOO or // remarks
+    /^[[:space:]]*\/\/[[:space:]]*(lt[A-Z_]+|remarks)[[:space:]]*$/ {
+        flush_group()
+        line = $0
+        sub(/.*\/\/[[:space:]]*/, "", line)
+        group = trim(line)
+        next
+    }
+
+    # Skip pure comment lines (not group headers)
+    /^[[:space:]]*\/\// { next }
+
+    # Skip blank lines
+    /^[[:space:]]*$/ { next }
+
+    # Accumulate flag lines (handle multi-line values)
+    {
+        line = $0
+        # Strip inline comments
+        sub(/\/\/.*/, "", line)
+        line = trim(line)
+        if (line == "") next
+
+        if (pending != "") {
+            pending = pending " " line
+        } else {
+            pending = line
+        }
+
+        # If line ends with comma, the entry is complete
+        if (pending ~ /,$/) {
+            # Remove trailing comma
+            sub(/,$/, "", pending)
+            entries[++entry_count] = pending
+            pending = ""
+        }
+    }
+
+    BEGIN {
+        inside = 0
+        group = ""
+        pending = ""
+        entry_count = 0
+    }
+' "$LEDGER_FORMATS"
+echo ''
+echo '#endif // HOOKLSFLAGS_INCLUDED'

hook/generate_txflags.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+set -eu
+
+SCRIPT_DIR=$(dirname "$0")
+SCRIPT_DIR=$(cd "$SCRIPT_DIR" && pwd)
+
+RIPPLED_ROOT="$SCRIPT_DIR/../include/xrpl"
+TX_FLAGS="$RIPPLED_ROOT/protocol/TxFlags.h"
+
+echo '// Generated using generate_txflags.sh'
+echo '#include "ls_flags.h"'
+echo '#include <stdint.h>'
+echo ''
+cat "$TX_FLAGS" |
+    awk '
+        /^[[:space:]]*enum / {
+            if (count > 0) print ""
+            inside = 1
+            count++
+        }
+        inside {
+            print
+            if (/};/) inside = 0
+        }
+    '

hook/genesis/build_xahau_h.sh

@@ -0,0 +1,203 @@
+#!/bin/bash
+
+# build_xahau_h.sh
+# Builds genesis hook WASMs and updates xahau.h with hex arrays
+
+set -euo pipefail
+
+# Color codes for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Script directory and path constants
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+XAHAU_H="${SCRIPT_DIR}/../../include/xrpl/hook/xahau.h"
+TEMP_DIR="${SCRIPT_DIR}/.temp"
+
+# Hook file mappings (space-separated: name:file)
+HOOK_FILES=(
+    "GovernanceHook:govern.wasm"
+    "RewardHook:reward.wasm"
+    # "MintHook:mint.wasm"
+)
+
+# Cleanup function
+cleanup() {
+    local exit_code=$?
+    if [ ${exit_code} -eq 0 ] && [ -d "${TEMP_DIR}" ]; then
+        rm -rf "${TEMP_DIR}"
+    elif [ ${exit_code} -ne 0 ]; then
+        echo -e "${RED}Error: Script failed with exit code ${exit_code}${NC}" >&2
+        if [ -d "${TEMP_DIR}" ]; then
+            echo -e "${YELLOW}Temp files preserved at: ${TEMP_DIR}${NC}" >&2
+        fi
+    fi
+    exit ${exit_code}
+}
+
+trap cleanup EXIT INT TERM
+
+# Tool verification
+echo -e "${BLUE}==> Checking required tools...${NC}"
+REQUIRED_TOOLS=("make" "xxd" "sed" "clang-format" "wasm-opt")
+for tool in "${REQUIRED_TOOLS[@]}"; do
+    if ! command -v "${tool}" &> /dev/null; then
+        echo -e "${RED}Error: Required tool '${tool}' not found${NC}" >&2
+        exit 1
+    fi
+    echo -e "${GREEN}    ✓ ${tool}${NC}"
+done
+
+# Verify wasm-opt version is exactly 100
+WASM_OPT_VERSION=$(wasm-opt --version | grep -oE '[0-9]+' | head -1)
+if [ "${WASM_OPT_VERSION}" != "100" ]; then
+    echo -e "${RED}Error: wasm-opt version must be 100, but found ${WASM_OPT_VERSION}${NC}" >&2
+    exit 1
+fi
+echo -e "${GREEN}    ✓ wasm-opt version 100${NC}"
+
+# Verify xahau.h exists
+if [ ! -f "${XAHAU_H}" ]; then
+    echo -e "${RED}Error: xahau.h not found at ${XAHAU_H}${NC}" >&2
+    exit 1
+fi
+
+# Create temp directory
+mkdir -p "${TEMP_DIR}"
+
+# Build all WASM files
+echo -e "${BLUE}==> Building WASM files with 'make all'...${NC}"
+cd "${SCRIPT_DIR}"
+make all
+echo -e "${GREEN}    Build completed successfully${NC}"
+
+# Function to convert WASM to hex array
+wasm_to_hex_array() {
+    local wasm_file="$1"
+    local indent="    "
+
+    if [ ! -f "${wasm_file}" ]; then
+        echo -e "${RED}Error: WASM file not found: ${wasm_file}${NC}" >&2
+        return 1
+    fi
+
+    # Convert to hex with xxd, format with sed
+    xxd -p -u -c 10 "${wasm_file}" | \
+        sed 's/../0x&U,/g' | \
+        sed "s/^/${indent}/g" | \
+        sed '$ s/,$//'
+}
+
+# Function to update hook array in xahau.h
+update_hook_array() {
+    local hook_name="$1"
+    local hex_array="$2"
+    local temp_file="${TEMP_DIR}/xahau.h.tmp"
+
+    echo -e "${BLUE}==> Updating ${hook_name}...${NC}"
+
+    # Check if hook already exists
+    if grep -q "static const std::vector<uint8_t> ${hook_name} = {" "${XAHAU_H}"; then
+        echo -e "${YELLOW}    Replacing existing ${hook_name}${NC}"
+
+        # Use awk to replace the array content
+        awk -v hook="${hook_name}" -v hex="${hex_array}" '
+        BEGIN { in_array=0 }
+        {
+            if ($0 ~ "static const std::vector<uint8_t> " hook " = {") {
+                print $0
+                print hex
+                in_array=1
+                next
+            }
+            if (in_array && $0 ~ /};/) {
+                print "};"
+                in_array=0
+                next
+            }
+            if (!in_array) {
+                print $0
+            }
+        }
+        ' "${XAHAU_H}" > "${temp_file}"
+
+        mv "${temp_file}" "${XAHAU_H}"
+    else
+        echo -e "${YELLOW}    Adding new ${hook_name}${NC}"
+
+        # Find the position before #endif and add the new hook
+        awk -v hook="${hook_name}" -v hex="${hex_array}" '
+        {
+            if ($0 ~ /#endif.*XAHAU_GENESIS_HOOKS/) {
+                print ""
+                print "static const std::vector<uint8_t> " hook " = {"
+                print hex
+                print "};"
+                print ""
+                print $0
+            } else {
+                print $0
+            }
+        }
+        ' "${XAHAU_H}" > "${temp_file}"
+
+        mv "${temp_file}" "${XAHAU_H}"
+    fi
+
+    echo -e "${GREEN}    ✓ ${hook_name} updated${NC}"
+}
+
+# Process each hook
+for hook_entry in "${HOOK_FILES[@]}"; do
+    hook_name="${hook_entry%%:*}"
+    wasm_file="${SCRIPT_DIR}/${hook_entry##*:}"
+
+    echo -e "${BLUE}==> Converting ${wasm_file} to hex array...${NC}"
+    hex_array=$(wasm_to_hex_array "${wasm_file}")
+
+    if [ $? -ne 0 ]; then
+        echo -e "${RED}Error: Failed to convert ${wasm_file}${NC}" >&2
+        exit 1
+    fi
+
+    echo -e "${GREEN}    Conversion successful ($(echo "${hex_array}" | wc -l) lines)${NC}"
+
+    update_hook_array "${hook_name}" "${hex_array}"
+done
+
+# Format with clang-format
+echo -e "${BLUE}==> Formatting with clang-format...${NC}"
+cp "${XAHAU_H}" "${TEMP_DIR}/xahau.h.before_format"
+clang-format -i "${XAHAU_H}"
+echo -e "${GREEN}    Formatting completed${NC}"
+
+# Verification
+echo -e "${BLUE}==> Verifying changes...${NC}"
+for hook_entry in "${HOOK_FILES[@]}"; do
+    hook_name="${hook_entry%%:*}"
+    if grep -q "static const std::vector<uint8_t> ${hook_name} = {" "${XAHAU_H}"; then
+        echo -e "${GREEN}    ✓ ${hook_name} found in xahau.h${NC}"
+    else
+        echo -e "${RED}    ✗ ${hook_name} NOT found in xahau.h${NC}" >&2
+        exit 1
+    fi
+done
+
+# Show summary
+echo ""
+echo -e "${GREEN}========================================${NC}"
+echo -e "${GREEN}Successfully updated xahau.h${NC}"
+echo -e "${GREEN}========================================${NC}"
+echo -e "Updated hooks:"
+for hook_entry in "${HOOK_FILES[@]}"; do
+    hook_name="${hook_entry%%:*}"
+    wasm_file="${SCRIPT_DIR}/${hook_entry##*:}"
+    size=$(wc -c < "${wasm_file}" | tr -d ' ')
+    echo -e "  - ${hook_name}: ${size} bytes"
+done
+echo ""
+echo -e "File location: ${XAHAU_H}"
+echo ""

hook/genesis/headers/error.h

@@ -0,0 +1,46 @@
+// For documentation please see: https://xrpl-hooks.readme.io/reference/
+// Generated using generate_error.sh
+#ifndef HOOK_ERROR_CODES
+#define SUCCESS 0
+#define OUT_OF_BOUNDS -1
+#define INTERNAL_ERROR -2
+#define TOO_BIG -3
+#define TOO_SMALL -4
+#define DOESNT_EXIST -5
+#define NO_FREE_SLOTS -6
+#define INVALID_ARGUMENT -7
+#define ALREADY_SET -8
+#define PREREQUISITE_NOT_MET -9
+#define FEE_TOO_LARGE -10
+#define EMISSION_FAILURE -11
+#define TOO_MANY_NONCES -12
+#define TOO_MANY_EMITTED_TXN -13
+#define NOT_IMPLEMENTED -14
+#define INVALID_ACCOUNT -15
+#define GUARD_VIOLATION -16
+#define INVALID_FIELD -17
+#define PARSE_ERROR -18
+#define RC_ROLLBACK -19
+#define RC_ACCEPT -20
+#define NO_SUCH_KEYLET -21
+#define NOT_AN_ARRAY -22
+#define NOT_AN_OBJECT -23
+#define INVALID_FLOAT -10024
+#define DIVISION_BY_ZERO -25
+#define MANTISSA_OVERSIZED -26
+#define MANTISSA_UNDERSIZED -27
+#define EXPONENT_OVERSIZED -28
+#define EXPONENT_UNDERSIZED -29
+#define OVERFLOW -30
+#define NOT_IOU_AMOUNT -31
+#define NOT_AN_AMOUNT -32
+#define CANT_RETURN_NEGATIVE -33
+#define NOT_AUTHORIZED -34
+#define PREVIOUS_FAILURE_PREVENTS_RETRY -35
+#define TOO_MANY_PARAMS -36
+#define INVALID_TXN -37
+#define RESERVE_INSUFFICIENT -38
+#define COMPLEX_NOT_SUPPORTED -39
+#define DOES_NOT_MATCH -40
+#define HOOK_ERROR_CODES
+#endif //HOOK_ERROR_CODES

hook/genesis/headers/extern.h

@@ -0,0 +1,352 @@
+// For documentation please see: https://xrpl-hooks.readme.io/reference/
+// Generated using generate_extern.sh
+#include <stdint.h>
+#ifndef HOOK_EXTERN
+
+extern int32_t __attribute__((noduplicate))
+_g(uint32_t guard_id, uint32_t maxiter);
+
+extern int64_t
+accept(uint32_t read_ptr, uint32_t read_len, int64_t error_code);
+
+extern int64_t
+emit(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+etxn_burden(void);
+
+extern int64_t
+etxn_details(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+etxn_fee_base(uint32_t read_ptr, uint32_t read_len);
+
+extern int64_t
+etxn_generation(void);
+
+extern int64_t
+etxn_nonce(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+etxn_reserve(uint32_t count);
+
+extern int64_t
+fee_base(void);
+
+extern int64_t
+float_compare(int64_t float1, int64_t float2, uint32_t mode);
+
+extern int64_t
+float_divide(int64_t float1, int64_t float2);
+
+extern int64_t
+float_exponent(int64_t float1);
+
+extern int64_t
+float_exponent_set(int64_t float1, int32_t exponent);
+
+extern int64_t
+float_int(int64_t float1, uint32_t decimal_places, uint32_t abs);
+
+extern int64_t
+float_invert(int64_t float1);
+
+extern int64_t
+float_log(int64_t float1);
+
+extern int64_t
+float_mantissa(int64_t float1);
+
+extern int64_t
+float_mantissa_set(int64_t float1, int64_t mantissa);
+
+extern int64_t
+float_mulratio(
+    int64_t float1,
+    uint32_t round_up,
+    uint32_t numerator,
+    uint32_t denominator);
+
+extern int64_t
+float_multiply(int64_t float1, int64_t float2);
+
+extern int64_t
+float_negate(int64_t float1);
+
+extern int64_t
+float_one(void);
+
+extern int64_t
+float_root(int64_t float1, uint32_t n);
+
+extern int64_t
+float_set(int32_t exponent, int64_t mantissa);
+
+extern int64_t
+float_sign(int64_t float1);
+
+extern int64_t
+float_sign_set(int64_t float1, uint32_t negative);
+
+extern int64_t
+float_sto(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t cread_ptr,
+    uint32_t cread_len,
+    uint32_t iread_ptr,
+    uint32_t iread_len,
+    int64_t float1,
+    uint32_t field_code);
+
+extern int64_t
+float_sto_set(uint32_t read_ptr, uint32_t read_len);
+
+extern int64_t
+float_sum(int64_t float1, int64_t float2);
+
+extern int64_t
+hook_account(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+hook_again(void);
+
+extern int64_t
+hook_hash(uint32_t write_ptr, uint32_t write_len, int32_t hook_no);
+
+extern int64_t
+hook_param(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+otxn_param(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+hook_param_set(
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len,
+    uint32_t hread_ptr,
+    uint32_t hread_len);
+
+extern int64_t
+hook_pos(void);
+
+extern int64_t
+hook_skip(uint32_t read_ptr, uint32_t read_len, uint32_t flags);
+
+extern int64_t
+ledger_keylet(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t lread_ptr,
+    uint32_t lread_len,
+    uint32_t hread_ptr,
+    uint32_t hread_len);
+
+extern int64_t
+ledger_last_hash(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+ledger_last_time(void);
+
+extern int64_t
+ledger_nonce(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+ledger_seq(void);
+
+extern int64_t
+meta_slot(uint32_t slot_no);
+
+extern int64_t
+otxn_burden(void);
+
+extern int64_t
+otxn_field(uint32_t write_ptr, uint32_t write_len, uint32_t field_id);
+
+extern int64_t
+otxn_field_txt(uint32_t write_ptr, uint32_t write_len, uint32_t field_id);
+
+extern int64_t
+otxn_generation(void);
+
+extern int64_t
+otxn_id(uint32_t write_ptr, uint32_t write_len, uint32_t flags);
+
+extern int64_t
+otxn_slot(uint32_t slot_no);
+
+extern int64_t
+otxn_type(void);
+
+extern int64_t
+rollback(uint32_t read_ptr, uint32_t read_len, int64_t error_code);
+
+extern int64_t
+slot(uint32_t write_ptr, uint32_t write_len, uint32_t slot);
+
+extern int64_t
+slot_clear(uint32_t slot);
+
+extern int64_t
+slot_count(uint32_t slot);
+
+extern int64_t
+slot_float(uint32_t slot_no);
+
+extern int64_t
+slot_id(uint32_t write_ptr, uint32_t write_len, uint32_t slot);
+
+extern int64_t
+slot_set(uint32_t read_ptr, uint32_t read_len, uint32_t slot);
+
+extern int64_t
+slot_size(uint32_t slot);
+
+extern int64_t
+slot_subarray(uint32_t parent_slot, uint32_t array_id, uint32_t new_slot);
+
+extern int64_t
+slot_subfield(uint32_t parent_slot, uint32_t field_id, uint32_t new_slot);
+
+extern int64_t
+slot_type(uint32_t slot_no, uint32_t flags);
+
+extern int64_t
+state(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len);
+
+extern int64_t
+state_foreign(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len,
+    uint32_t nread_ptr,
+    uint32_t nread_len,
+    uint32_t aread_ptr,
+    uint32_t aread_len);
+
+extern int64_t
+state_foreign_set(
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len,
+    uint32_t nread_ptr,
+    uint32_t nread_len,
+    uint32_t aread_ptr,
+    uint32_t aread_len);
+
+extern int64_t
+state_set(
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len);
+
+extern int64_t
+sto_emplace(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t sread_ptr,
+    uint32_t sread_len,
+    uint32_t fread_ptr,
+    uint32_t fread_len,
+    uint32_t field_id);
+
+extern int64_t
+sto_erase(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t field_id);
+
+extern int64_t
+sto_subarray(uint32_t read_ptr, uint32_t read_len, uint32_t array_id);
+
+extern int64_t
+sto_subfield(uint32_t read_ptr, uint32_t read_len, uint32_t field_id);
+
+extern int64_t
+sto_validate(uint32_t tread_ptr, uint32_t tread_len);
+
+extern int64_t
+trace(
+    uint32_t mread_ptr,
+    uint32_t mread_len,
+    uint32_t dread_ptr,
+    uint32_t dread_len,
+    uint32_t as_hex);
+
+extern int64_t
+trace_float(uint32_t read_ptr, uint32_t read_len, int64_t float1);
+
+extern int64_t
+trace_num(uint32_t read_ptr, uint32_t read_len, int64_t number);
+
+extern int64_t
+trace_slot(uint32_t read_ptr, uint32_t read_len, uint32_t slot);
+
+extern int64_t
+util_accid(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+util_keylet(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t keylet_type,
+    uint32_t a,
+    uint32_t b,
+    uint32_t c,
+    uint32_t d,
+    uint32_t e,
+    uint32_t f);
+
+extern int64_t
+util_raddr(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+util_sha512h(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+util_verify(
+    uint32_t dread_ptr,
+    uint32_t dread_len,
+    uint32_t sread_ptr,
+    uint32_t sread_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len);
+
+extern int64_t xpop_slot(uint32_t, uint32_t);
+#define HOOK_EXTERN
+#endif  // HOOK_EXTERN

hook/genesis/headers/hookapi.h

@@ -0,0 +1,50 @@
+/**
+ * Hook API include file
+ *
+ * Note to the reader:
+ * This include defines two types of things: external functions and macros
+ * Functions are used sparingly because a non-inlining compiler may produce
+ * undesirable output.
+ *
+ * Find documentation here: https://xrpl-hooks.readme.io/reference/
+ */
+
+#ifndef HOOKAPI_INCLUDED
+#define HOOKAPI_INCLUDED 1
+
+#define KEYLET_HOOK 1
+#define KEYLET_HOOK_STATE 2
+#define KEYLET_ACCOUNT 3
+#define KEYLET_AMENDMENTS 4
+#define KEYLET_CHILD 5
+#define KEYLET_SKIP 6
+#define KEYLET_FEES 7
+#define KEYLET_NEGATIVE_UNL 8
+#define KEYLET_LINE 9
+#define KEYLET_OFFER 10
+#define KEYLET_QUALITY 11
+#define KEYLET_EMITTED_DIR 12
+#define KEYLET_TICKET 13
+#define KEYLET_SIGNERS 14
+#define KEYLET_CHECK 15
+#define KEYLET_DEPOSIT_PREAUTH 16
+#define KEYLET_UNCHECKED 17
+#define KEYLET_OWNER_DIR 18
+#define KEYLET_PAGE 19
+#define KEYLET_ESCROW 20
+#define KEYLET_PAYCHAN 21
+#define KEYLET_EMITTED 22
+#define KEYLET_NFT_OFFER 23
+#define KEYLET_HOOK_DEFINITION 24
+
+#define COMPARE_EQUAL 1U
+#define COMPARE_LESS 2U
+#define COMPARE_GREATER 4U
+
+#include "error.h"
+#include "extern.h"
+#include "sfcodes.h"
+#include "macro.h"
+#include "types.h"
+
+#endif

hook/genesis/headers/macro.h

@@ -0,0 +1,671 @@
+/**
+ * These are helper macros for writing hooks, all of them are optional as is including hookmacro.h at all
+ */
+
+#include <stdint.h>
+#include "hookapi.h"
+#include "sfcodes.h"
+
+#ifndef HOOKMACROS_INCLUDED
+#define HOOKMACROS_INCLUDED 1
+
+
+#ifdef NDEBUG
+#define DEBUG 0
+#else
+#define DEBUG 1
+#endif
+
+#define TRACEVAR(v) if (DEBUG) trace_num((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (int64_t)v);
+#define TRACEHEX(v) if (DEBUG) trace((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (uint32_t)(v), (uint32_t)(sizeof(v)), 1);
+#define TRACEXFL(v) if (DEBUG) trace_float((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (int64_t)v);
+#define TRACESTR(v) if (DEBUG) trace((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (uint32_t)(v), sizeof(v), 0);
+
+// hook developers should use this guard macro, simply GUARD(<maximum iterations>)
+#define GUARD(maxiter) _g((1ULL << 31U) + __LINE__, (maxiter)+1)
+#define GUARDM(maxiter, n) _g(( (1ULL << 31U) + (__LINE__ << 16) + n), (maxiter)+1)
+
+#define SBUF(str) (uint32_t)(str), sizeof(str)
+
+#define REQUIRE(cond, str)\
+{\
+    if (!(cond))\
+        rollback(SBUF(str), __LINE__);\
+}
+
+// make a report buffer as a c-string
+// provide a name for a buffer to declare (buf)
+// provide a static string
+// provide an integer to print after the string
+#define RBUF(buf, out_len, str, num)\
+unsigned char buf[sizeof(str) + 21];\
+int out_len = 0;\
+{\
+    int i = 0;\
+    for (; GUARDM(sizeof(str),1),i < sizeof(str); ++i)\
+        (buf)[i] = str[i];\
+    if ((buf)[sizeof(str)-1] == 0) i--;\
+    if ((num) < 0) (buf)[i++] = '-';\
+    uint64_t unsigned_num = (uint64_t)( (num) < 0 ? (num) * -1 : (num) );\
+    uint64_t j = 10000000000000000000ULL;\
+    int start = 1;\
+    for (; GUARDM(20,2), unsigned_num > 0 && j > 0; j /= 10)\
+    {\
+        unsigned char digit = ( unsigned_num / j ) % 10;\
+        if (digit == 0 && start)\
+            continue;\
+        start = 0;\
+        (buf)[i++] = '0' + digit;\
+    }\
+    (buf)[i] = '\0';\
+    out_len = i;\
+}
+
+#define RBUF2(buff, out_len, str, num, str2, num2)\
+unsigned char buff[sizeof(str) + sizeof(str2) + 42];\
+int out_len = 0;\
+{\
+    unsigned char* buf = buff;\
+    int i = 0;\
+    for (; GUARDM(sizeof(str),1),i < sizeof(str); ++i)\
+        (buf)[i] = str[i];\
+    if ((buf)[sizeof(str)-1] == 0) i--;\
+    if ((num) < 0) (buf)[i++] = '-';\
+    uint64_t unsigned_num = (uint64_t)( (num) < 0 ? (num) * -1 : (num) );\
+    uint64_t j = 10000000000000000000ULL;\
+    int start = 1;\
+    for (; GUARDM(20,2), unsigned_num > 0 && j > 0; j /= 10)\
+    {\
+        unsigned char digit = ( unsigned_num / j ) % 10;\
+        if (digit == 0 && start)\
+            continue;\
+        start = 0;\
+        (buf)[i++] = '0' + digit;\
+    }\
+    buf += i;\
+    out_len += i;\
+    i = 0;\
+    for (; GUARDM(sizeof(str2),3),i < sizeof(str2); ++i)\
+        (buf)[i] = str2[i];\
+    if ((buf)[sizeof(str2)-1] == 0) i--;\
+    if ((num2) < 0) (buf)[i++] = '-';\
+    unsigned_num = (uint64_t)( (num2) < 0 ? (num2) * -1 : (num2) );\
+    j = 10000000000000000000ULL;\
+    start = 1;\
+    for (; GUARDM(20,4), unsigned_num > 0 && j > 0; j /= 10)\
+    {\
+        unsigned char digit = ( unsigned_num / j ) % 10;\
+        if (digit == 0 && start)\
+            continue;\
+        start = 0;\
+        (buf)[i++] = '0' + digit;\
+    }\
+    (buf)[i] = '\0';\
+    out_len += i;\
+}
+
+#define CLEARBUF(b)\
+{\
+    for (int x = 0; GUARD(sizeof(b)), x < sizeof(b); ++x)\
+        b[x] = 0;\
+}
+
+// returns an in64_t, negative if error, non-negative if valid drops
+#define AMOUNT_TO_DROPS(amount_buffer)\
+     (((amount_buffer)[0] >> 7) ? -2 : (\
+     ((((uint64_t)((amount_buffer)[0])) & 0xb00111111) << 56) +\
+      (((uint64_t)((amount_buffer)[1])) << 48) +\
+      (((uint64_t)((amount_buffer)[2])) << 40) +\
+      (((uint64_t)((amount_buffer)[3])) << 32) +\
+      (((uint64_t)((amount_buffer)[4])) << 24) +\
+      (((uint64_t)((amount_buffer)[5])) << 16) +\
+      (((uint64_t)((amount_buffer)[6])) <<  8) +\
+      (((uint64_t)((amount_buffer)[7])))))
+
+#define SUB_OFFSET(x) ((int32_t)(x >> 32))
+#define SUB_LENGTH(x) ((int32_t)(x & 0xFFFFFFFFULL))
+
+#define BUFFER_EQUAL_20(buf1, buf2)\
+    (\
+        *(((uint64_t*)(buf1)) + 0) == *(((uint64_t*)(buf2)) + 0) &&\
+        *(((uint64_t*)(buf1)) + 1) == *(((uint64_t*)(buf2)) + 1) &&\
+        *(((uint32_t*)(buf1)) + 4) == *(((uint32_t*)(buf2)) + 4))
+
+#define BUFFER_EQUAL_32(buf1, buf2)\
+    (\
+        *(((uint64_t*)(buf1)) + 0) == *(((uint64_t*)(buf2)) + 0) &&\
+        *(((uint64_t*)(buf1)) + 1) == *(((uint64_t*)(buf2)) + 1) &&\
+        *(((uint64_t*)(buf1)) + 2) == *(((uint64_t*)(buf2)) + 2) &&\
+        *(((uint64_t*)(buf1)) + 3) == *(((uint64_t*)(buf2)) + 3))
+
+
+// when using this macro buf1len may be dynamic but buf2len must be static
+// provide n >= 1 to indicate how many times the macro will be hit on the line of code
+// e.g. if it is in a loop that loops 10 times n = 10
+
+#define BUFFER_EQUAL_GUARD(output, buf1, buf1len, buf2, buf2len, n)\
+{\
+    output = ((buf1len) == (buf2len) ? 1 : 0);\
+    for (int x = 0; GUARDM( (buf2len) * (n), 1 ), output && x < (buf2len);\
+         ++x)\
+        output = *(((uint8_t*)(buf1)) + x) == *(((uint8_t*)(buf2)) + x);\
+}
+
+#define BUFFER_SWAP(x,y)\
+{\
+    uint8_t* z = x;\
+    x = y;\
+    y = z;\
+}
+
+#define ACCOUNT_COMPARE(compare_result, buf1, buf2)\
+{\
+    compare_result = 0;\
+    for (int i = 0; GUARD(20), i < 20; ++i)\
+    {\
+        if (buf1[i] > buf2[i])\
+        {\
+            compare_result = 1;\
+            break;\
+        }\
+        else if (buf1[i] < buf2[i])\
+        {\
+            compare_result = -1;\
+            break;\
+        }\
+    }\
+}
+
+#define BUFFER_EQUAL_STR_GUARD(output, buf1, buf1len, str, n)\
+    BUFFER_EQUAL_GUARD(output, buf1, buf1len, str, (sizeof(str)-1), n)
+
+#define BUFFER_EQUAL_STR(output, buf1, buf1len, str)\
+    BUFFER_EQUAL_GUARD(output, buf1, buf1len, str, (sizeof(str)-1), 1)
+
+#define BUFFER_EQUAL(output, buf1, buf2, compare_len)\
+    BUFFER_EQUAL_GUARD(output, buf1, compare_len, buf2, compare_len, 1)
+
+#define UINT16_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 8) & 0xFFUL;\
+    buf[1] = (((uint64_t)i) >> 0) & 0xFFUL;\
+}
+
+#define UINT16_FROM_BUF(buf)\
+    (((uint64_t)((buf)[0]) <<  8) +\
+     ((uint64_t)((buf)[1]) <<  0))
+
+#define UINT32_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 24) & 0xFFUL;\
+    buf[1] = (((uint64_t)i) >> 16) & 0xFFUL;\
+    buf[2] = (((uint64_t)i) >>  8) & 0xFFUL;\
+    buf[3] = (((uint64_t)i) >>  0) & 0xFFUL;\
+}
+
+
+#define UINT32_FROM_BUF(buf)\
+    (((uint64_t)((buf)[0]) << 24) +\
+     ((uint64_t)((buf)[1]) << 16) +\
+     ((uint64_t)((buf)[2]) <<  8) +\
+     ((uint64_t)((buf)[3]) <<  0))
+
+#define UINT64_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 56) & 0xFFUL;\
+    buf[1] = (((uint64_t)i) >> 48) & 0xFFUL;\
+    buf[2] = (((uint64_t)i) >> 40) & 0xFFUL;\
+    buf[3] = (((uint64_t)i) >> 32) & 0xFFUL;\
+    buf[4] = (((uint64_t)i) >> 24) & 0xFFUL;\
+    buf[5] = (((uint64_t)i) >> 16) & 0xFFUL;\
+    buf[6] = (((uint64_t)i) >>  8) & 0xFFUL;\
+    buf[7] = (((uint64_t)i) >>  0) & 0xFFUL;\
+}
+
+
+#define UINT64_FROM_BUF(buf)\
+    (((uint64_t)((buf)[0]) << 56) +\
+     ((uint64_t)((buf)[1]) << 48) +\
+     ((uint64_t)((buf)[2]) << 40) +\
+     ((uint64_t)((buf)[3]) << 32) +\
+     ((uint64_t)((buf)[4]) << 24) +\
+     ((uint64_t)((buf)[5]) << 16) +\
+     ((uint64_t)((buf)[6]) <<  8) +\
+     ((uint64_t)((buf)[7]) <<  0))
+
+
+#define INT64_FROM_BUF(buf)\
+   ((((uint64_t)((buf)[0] & 0x7FU) << 56) +\
+     ((uint64_t)((buf)[1]) << 48) +\
+     ((uint64_t)((buf)[2]) << 40) +\
+     ((uint64_t)((buf)[3]) << 32) +\
+     ((uint64_t)((buf)[4]) << 24) +\
+     ((uint64_t)((buf)[5]) << 16) +\
+     ((uint64_t)((buf)[6]) <<  8) +\
+     ((uint64_t)((buf)[7]) <<  0)) * (buf[0] & 0x80U ? -1 : 1))
+
+#define INT64_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 56) & 0x7FUL;\
+    buf[1] = (((uint64_t)i) >> 48) & 0xFFUL;\
+    buf[2] = (((uint64_t)i) >> 40) & 0xFFUL;\
+    buf[3] = (((uint64_t)i) >> 32) & 0xFFUL;\
+    buf[4] = (((uint64_t)i) >> 24) & 0xFFUL;\
+    buf[5] = (((uint64_t)i) >> 16) & 0xFFUL;\
+    buf[6] = (((uint64_t)i) >>  8) & 0xFFUL;\
+    buf[7] = (((uint64_t)i) >>  0) & 0xFFUL;\
+    if (i < 0) buf[0] |= 0x80U;\
+}
+
+#define ttPAYMENT 0
+#define ttESCROW_CREATE 1
+#define ttESCROW_FINISH 2
+#define ttACCOUNT_SET 3
+#define ttESCROW_CANCEL 4
+#define ttREGULAR_KEY_SET 5
+#define ttOFFER_CREATE 7
+#define ttOFFER_CANCEL 8
+#define ttTICKET_CREATE 10
+#define ttSIGNER_LIST_SET 12
+#define ttPAYCHAN_CREATE 13
+#define ttPAYCHAN_FUND 14
+#define ttPAYCHAN_CLAIM 15
+#define ttCHECK_CREATE 16
+#define ttCHECK_CASH 17
+#define ttCHECK_CANCEL 18
+#define ttDEPOSIT_PREAUTH 19
+#define ttTRUST_SET 20
+#define ttACCOUNT_DELETE 21
+#define ttHOOK_SET 22
+#define ttNFTOKEN_MINT 25
+#define ttNFTOKEN_BURN 26
+#define ttNFTOKEN_CREATE_OFFER 27
+#define ttNFTOKEN_CANCEL_OFFER 28
+#define ttNFTOKEN_ACCEPT_OFFER 29
+#define ttURITOKEN_MINT 45
+#define ttURITOKEN_BURN 46
+#define ttURITOKEN_BUY 47
+#define ttURITOKEN_CREATE_SELL_OFFER 48
+#define ttURITOKEN_CANCEL_SELL_OFFER 49
+#define ttCLAIM_REWARD 98
+#define ttINVOKE 99
+#define ttAMENDMENT 100
+#define ttFEE 101
+#define ttUNL_MODIFY 102
+#define ttEMIT_FAILURE 103
+#define tfCANONICAL 0x80000000UL
+
+#define atACCOUNT 1U
+#define atOWNER 2U
+#define atDESTINATION 3U
+#define atISSUER 4U
+#define atAUTHORIZE 5U
+#define atUNAUTHORIZE 6U
+#define atTARGET 7U
+#define atREGULARKEY 8U
+#define atPSEUDOCALLBACK 9U
+
+#define amAMOUNT 1U
+#define amBALANCE 2U
+#define amLIMITAMOUNT 3U
+#define amTAKERPAYS 4U
+#define amTAKERGETS 5U
+#define amLOWLIMIT 6U
+#define amHIGHLIMIT 7U
+#define amFEE 8U
+#define amSENDMAX 9U
+#define amDELIVERMIN 10U
+#define amMINIMUMOFFER 16U
+#define amRIPPLEESCROW 17U
+#define amDELIVEREDAMOUNT 18U
+
+/**
+ * RH NOTE -- PAY ATTENTION
+ *
+ * ALL 'ENCODE' MACROS INCREMENT BUF_OUT
+ * THIS IS TO MAKE CHAINING EASY
+ * BUF_OUT IS A SACRIFICIAL POINTER
+ *
+ * 'ENCODE' MACROS WITH CONSTANTS HAVE
+ * ALIASING TO ASSIST YOU WITH ORDER
+ * _TYPECODE_FIELDCODE_ENCODE_MACRO
+ * TO PRODUCE A SERIALIZED OBJECT
+ * IN CANONICAL FORMAT YOU MUST ORDER
+ * FIRST BY TYPE CODE THEN BY FIELD CODE
+ *
+ * ALL 'PREPARE' MACROS PRESERVE POINTERS
+ *
+ **/
+
+
+#define ENCODE_TL_SIZE 49
+#define ENCODE_TL(buf_out, tlamt, amount_type)\
+{\
+        uint8_t uat = amount_type; \
+        buf_out[0] = 0x60U +(uat & 0x0FU ); \
+        for (int i = 1; GUARDM(48, 1), i < 49; ++i)\
+            buf_out[i] = tlamt[i-1];\
+        buf_out += ENCODE_TL_SIZE;\
+}
+#define _06_XX_ENCODE_TL(buf_out, drops, amount_type )\
+    ENCODE_TL(buf_out, drops, amount_type );
+#define ENCODE_TL_AMOUNT(buf_out, drops )\
+    ENCODE_TL(buf_out, drops, amAMOUNT );
+#define _06_01_ENCODE_TL_AMOUNT(buf_out, drops )\
+    ENCODE_TL_AMOUNT(buf_out, drops );
+
+
+// Encode drops to serialization format
+// consumes 9 bytes
+#define ENCODE_DROPS_SIZE 9
+#define ENCODE_DROPS(buf_out, drops, amount_type ) \
+    {\
+        uint8_t uat = amount_type; \
+        uint64_t udrops = drops; \
+        buf_out[0] = 0x60U +(uat & 0x0FU ); \
+        buf_out[1] = 0b01000000 + (( udrops >> 56 ) & 0b00111111 ); \
+        buf_out[2] = (udrops >> 48) & 0xFFU; \
+        buf_out[3] = (udrops >> 40) & 0xFFU; \
+        buf_out[4] = (udrops >> 32) & 0xFFU; \
+        buf_out[5] = (udrops >> 24) & 0xFFU; \
+        buf_out[6] = (udrops >> 16) & 0xFFU; \
+        buf_out[7] = (udrops >>  8) & 0xFFU; \
+        buf_out[8] = (udrops >>  0) & 0xFFU; \
+        buf_out += ENCODE_DROPS_SIZE; \
+    }
+
+#define _06_XX_ENCODE_DROPS(buf_out, drops, amount_type )\
+    ENCODE_DROPS(buf_out, drops, amount_type );
+
+#define ENCODE_DROPS_AMOUNT(buf_out, drops )\
+    ENCODE_DROPS(buf_out, drops, amAMOUNT );
+#define _06_01_ENCODE_DROPS_AMOUNT(buf_out, drops )\
+    ENCODE_DROPS_AMOUNT(buf_out, drops );
+
+#define ENCODE_DROPS_FEE(buf_out, drops )\
+    ENCODE_DROPS(buf_out, drops, amFEE );
+#define _06_08_ENCODE_DROPS_FEE(buf_out, drops )\
+    ENCODE_DROPS_FEE(buf_out, drops );
+
+#define ENCODE_TT_SIZE 3
+#define ENCODE_TT(buf_out, tt )\
+    {\
+        uint8_t utt = tt;\
+        buf_out[0] = 0x12U;\
+        buf_out[1] =(utt >> 8 ) & 0xFFU;\
+        buf_out[2] =(utt >> 0 ) & 0xFFU;\
+        buf_out += ENCODE_TT_SIZE; \
+    }
+#define _01_02_ENCODE_TT(buf_out, tt)\
+    ENCODE_TT(buf_out, tt);
+
+
+#define ENCODE_ACCOUNT_SIZE 22
+#define ENCODE_ACCOUNT(buf_out, account_id, account_type)\
+    {\
+        uint8_t uat = account_type;\
+        buf_out[0] = 0x80U + uat;\
+        buf_out[1] = 0x14U;\
+        *(uint64_t*)(buf_out +  2) = *(uint64_t*)(account_id +  0);\
+        *(uint64_t*)(buf_out + 10) = *(uint64_t*)(account_id +  8);\
+        *(uint32_t*)(buf_out + 18) = *(uint32_t*)(account_id + 16);\
+        buf_out += ENCODE_ACCOUNT_SIZE;\
+    }
+#define _08_XX_ENCODE_ACCOUNT(buf_out, account_id, account_type)\
+    ENCODE_ACCOUNT(buf_out, account_id, account_type);
+
+#define ENCODE_ACCOUNT_SRC_SIZE 22
+#define ENCODE_ACCOUNT_SRC(buf_out, account_id)\
+    ENCODE_ACCOUNT(buf_out, account_id, atACCOUNT);
+#define _08_01_ENCODE_ACCOUNT_SRC(buf_out, account_id)\
+    ENCODE_ACCOUNT_SRC(buf_out, account_id);
+
+#define ENCODE_ACCOUNT_DST_SIZE 22
+#define ENCODE_ACCOUNT_DST(buf_out, account_id)\
+    ENCODE_ACCOUNT(buf_out, account_id, atDESTINATION);
+#define _08_03_ENCODE_ACCOUNT_DST(buf_out, account_id)\
+    ENCODE_ACCOUNT_DST(buf_out, account_id);
+
+#define ENCODE_ACCOUNT_OWNER_SIZE 22
+#define ENCODE_ACCOUNT_OWNER(buf_out, account_id) \
+    ENCODE_ACCOUNT(buf_out, account_id, atOWNER);
+#define _08_02_ENCODE_ACCOUNT_OWNER(buf_out, account_id) \
+    ENCODE_ACCOUNT_OWNER(buf_out, account_id);
+
+#define ENCODE_UINT32_COMMON_SIZE 5U
+#define ENCODE_UINT32_COMMON(buf_out, i, field)\
+    {\
+        uint32_t ui = i; \
+        uint8_t uf = field; \
+        buf_out[0] = 0x20U +(uf & 0x0FU); \
+        buf_out[1] =(ui >> 24 ) & 0xFFU; \
+        buf_out[2] =(ui >> 16 ) & 0xFFU; \
+        buf_out[3] =(ui >>  8 ) & 0xFFU; \
+        buf_out[4] =(ui >>  0 ) & 0xFFU; \
+        buf_out += ENCODE_UINT32_COMMON_SIZE; \
+    }
+#define _02_XX_ENCODE_UINT32_COMMON(buf_out, i, field)\
+    ENCODE_UINT32_COMMON(buf_out, i, field)\
+
+#define ENCODE_UINT32_UNCOMMON_SIZE 6U
+#define ENCODE_UINT32_UNCOMMON(buf_out, i, field)\
+    {\
+        uint32_t ui = i; \
+        uint8_t uf = field; \
+        buf_out[0] = 0x20U; \
+        buf_out[1] = uf; \
+        buf_out[2] =(ui >> 24 ) & 0xFFU; \
+        buf_out[3] =(ui >> 16 ) & 0xFFU; \
+        buf_out[4] =(ui >>  8 ) & 0xFFU; \
+        buf_out[5] =(ui >>  0 ) & 0xFFU; \
+        buf_out += ENCODE_UINT32_UNCOMMON_SIZE; \
+    }
+#define _02_XX_ENCODE_UINT32_UNCOMMON(buf_out, i, field)\
+    ENCODE_UINT32_UNCOMMON(buf_out, i, field)\
+
+#define ENCODE_LLS_SIZE 6U
+#define ENCODE_LLS(buf_out, lls )\
+    ENCODE_UINT32_UNCOMMON(buf_out, lls, 0x1B );
+#define _02_27_ENCODE_LLS(buf_out, lls )\
+    ENCODE_LLS(buf_out, lls );
+
+#define ENCODE_FLS_SIZE 6U
+#define ENCODE_FLS(buf_out, fls )\
+    ENCODE_UINT32_UNCOMMON(buf_out, fls, 0x1A );
+#define _02_26_ENCODE_FLS(buf_out, fls )\
+    ENCODE_FLS(buf_out, fls );
+
+#define ENCODE_TAG_SRC_SIZE 5
+#define ENCODE_TAG_SRC(buf_out, tag )\
+    ENCODE_UINT32_COMMON(buf_out, tag, 0x3U );
+#define _02_03_ENCODE_TAG_SRC(buf_out, tag )\
+    ENCODE_TAG_SRC(buf_out, tag );
+
+#define ENCODE_TAG_DST_SIZE 5
+#define ENCODE_TAG_DST(buf_out, tag )\
+    ENCODE_UINT32_COMMON(buf_out, tag, 0xEU );
+#define _02_14_ENCODE_TAG_DST(buf_out, tag )\
+    ENCODE_TAG_DST(buf_out, tag );
+
+#define ENCODE_SEQUENCE_SIZE 5
+#define ENCODE_SEQUENCE(buf_out, sequence )\
+    ENCODE_UINT32_COMMON(buf_out, sequence, 0x4U );
+#define _02_04_ENCODE_SEQUENCE(buf_out, sequence )\
+    ENCODE_SEQUENCE(buf_out, sequence );
+
+#define ENCODE_FLAGS_SIZE 5
+#define ENCODE_FLAGS(buf_out, tag )\
+    ENCODE_UINT32_COMMON(buf_out, tag, 0x2U );
+#define _02_02_ENCODE_FLAGS(buf_out, tag )\
+    ENCODE_FLAGS(buf_out, tag );
+
+#define ENCODE_SIGNING_PUBKEY_SIZE 35
+#define ENCODE_SIGNING_PUBKEY(buf_out, pkey )\
+    {\
+        buf_out[0] = 0x73U;\
+        buf_out[1] = 0x21U;\
+        *(uint64_t*)(buf_out +  2) = *(uint64_t*)(pkey +  0);\
+        *(uint64_t*)(buf_out + 10) = *(uint64_t*)(pkey +  8);\
+        *(uint64_t*)(buf_out + 18) = *(uint64_t*)(pkey + 16);\
+        *(uint64_t*)(buf_out + 26) = *(uint64_t*)(pkey + 24);\
+        buf[34] = pkey[32];\
+        buf_out += ENCODE_SIGNING_PUBKEY_SIZE;\
+    }
+
+#define _07_03_ENCODE_SIGNING_PUBKEY(buf_out, pkey )\
+    ENCODE_SIGNING_PUBKEY(buf_out, pkey );
+
+#define ENCODE_SIGNING_PUBKEY_NULL_SIZE 2
+#define ENCODE_SIGNING_PUBKEY_NULL(buf_out )\
+    {\
+        *buf_out++ = 0x73U;\
+        *buf_out++ = 0x00U;\
+    }
+
+#define _07_03_ENCODE_SIGNING_PUBKEY_NULL(buf_out )\
+    ENCODE_SIGNING_PUBKEY_NULL(buf_out );
+
+
+#define _0E_0E_ENCODE_HOOKOBJ(buf_out, hhash)\
+{\
+        uint8_t* hook0 = (hhash);\
+        *buf_out++ = 0xEEU;   /* hook obj start */ \
+        if (hook0 == 0) /* noop */\
+        {\
+            /* do nothing */ \
+        }\
+        else\
+        {\
+            *buf_out++ = 0x22U; /* flags = override */\
+            *buf_out++ = 0x00U;\
+            *buf_out++ = 0x00U;\
+            *buf_out++ = 0x00U;\
+            *buf_out++ = 0x01U;\
+            if (hook0 == 0xFFFFFFFFUL) /* delete operation */ \
+            {\
+                *buf_out++ = 0x7BU; /* empty createcode */ \
+                *buf_out++ = 0x00U;\
+            }\
+            else\
+            {\
+                *buf_out++ = 0x50U; /* HookHash */\
+                *buf_out++ = 0x1FU;\
+                uint64_t* d = (uint64_t*)buf_out;\
+                uint64_t* s = (uint64_t*)hook0;\
+                *d++ = *s++;\
+                *d++ = *s++;\
+                *d++ = *s++;\
+                *d++ = *s++;\
+                buf_out+=32;\
+            }\
+        }\
+        *buf_out++ = 0xE1U;\
+}
+
+#define PREPARE_HOOKSET(buf_out_master, maxlen, h, sizeout)\
+    {\
+        uint8_t* buf_out = (buf_out_master);                                            \
+        uint8_t acc[20];                                                                \
+        uint32_t cls = (uint32_t)ledger_seq();                                          \
+        hook_account(SBUF(acc));                                                        \
+        _01_02_ENCODE_TT                   (buf_out, ttHOOK_SET                     );  \
+        _02_02_ENCODE_FLAGS                (buf_out, tfCANONICAL                    );  \
+        _02_04_ENCODE_SEQUENCE             (buf_out, 0                              );  \
+        _02_26_ENCODE_FLS                  (buf_out, cls + 1                        );  \
+        _02_27_ENCODE_LLS                  (buf_out, cls + 5                        );  \
+        uint8_t* fee_ptr = buf_out;                                                     \
+        _06_08_ENCODE_DROPS_FEE            (buf_out, 0                              );  \
+        _07_03_ENCODE_SIGNING_PUBKEY_NULL  (buf_out                                 );  \
+        _08_01_ENCODE_ACCOUNT_SRC          (buf_out, acc                            );  \
+        uint32_t remaining_size = (maxlen) - (buf_out - (buf_out_master));              \
+        int64_t edlen = etxn_details((uint32_t)buf_out, remaining_size);                \
+        buf_out += edlen;                                                               \
+        *buf_out++ = 0xFBU;   /* hook array start */                                    \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[0]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[1]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[2]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[3]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[4]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[5]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[6]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[7]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[8]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[9]);                           \
+        *buf_out++ = 0xF1U;  /* hook array end */                                       \
+        sizeout = (buf_out - (buf_out_master));                                         \
+        int64_t fee = etxn_fee_base(buf_out_master, sizeout);                           \
+        _06_08_ENCODE_DROPS_FEE            (fee_ptr, fee                            );  \
+    }
+
+#ifdef HAS_CALLBACK
+#define PREPARE_PAYMENT_SIMPLE_SIZE 270U
+#else
+#define PREPARE_PAYMENT_SIMPLE_SIZE 248U
+#endif
+
+#define PREPARE_PAYMENT_SIMPLE(buf_out_master, drops_amount_raw, to_address, dest_tag_raw, src_tag_raw)\
+    {\
+        uint8_t* buf_out = buf_out_master;\
+        uint8_t acc[20];\
+        uint64_t drops_amount = (drops_amount_raw);\
+        uint32_t dest_tag = (dest_tag_raw);\
+        uint32_t src_tag = (src_tag_raw);\
+        uint32_t cls = (uint32_t)ledger_seq();\
+        hook_account(SBUF(acc));\
+        _01_02_ENCODE_TT                   (buf_out, ttPAYMENT                      );      /* uint16  | size   3 */ \
+        _02_02_ENCODE_FLAGS                (buf_out, tfCANONICAL                    );      /* uint32  | size   5 */ \
+        _02_03_ENCODE_TAG_SRC              (buf_out, src_tag                        );      /* uint32  | size   5 */ \
+        _02_04_ENCODE_SEQUENCE             (buf_out, 0                              );      /* uint32  | size   5 */ \
+        _02_14_ENCODE_TAG_DST              (buf_out, dest_tag                       );      /* uint32  | size   5 */ \
+        _02_26_ENCODE_FLS                  (buf_out, cls + 1                        );      /* uint32  | size   6 */ \
+        _02_27_ENCODE_LLS                  (buf_out, cls + 5                        );      /* uint32  | size   6 */ \
+        _06_01_ENCODE_DROPS_AMOUNT         (buf_out, drops_amount                   );      /* amount  | size   9 */ \
+        uint8_t* fee_ptr = buf_out;\
+        _06_08_ENCODE_DROPS_FEE            (buf_out, 0                              );      /* amount  | size   9 */ \
+        _07_03_ENCODE_SIGNING_PUBKEY_NULL  (buf_out                                 );      /* pk      | size  35 */ \
+        _08_01_ENCODE_ACCOUNT_SRC          (buf_out, acc                            );      /* account | size  22 */ \
+        _08_03_ENCODE_ACCOUNT_DST          (buf_out, to_address                     );      /* account | size  22 */ \
+        int64_t edlen = etxn_details((uint32_t)buf_out, PREPARE_PAYMENT_SIMPLE_SIZE);       /* emitdet | size 1?? */ \
+        int64_t fee = etxn_fee_base(buf_out_master, PREPARE_PAYMENT_SIMPLE_SIZE);                                    \ 
+        _06_08_ENCODE_DROPS_FEE            (fee_ptr, fee                            );                               \
+    }
+
+#ifdef HAS_CALLBACK
+#define PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE 309
+#else
+#define PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE 287
+#endif
+#define PREPARE_PAYMENT_SIMPLE_TRUSTLINE(buf_out_master, tlamt, to_address, dest_tag_raw, src_tag_raw)\
+    {\
+        uint8_t* buf_out = buf_out_master;\
+        uint8_t acc[20];\
+        uint32_t dest_tag = (dest_tag_raw);\
+        uint32_t src_tag = (src_tag_raw);\
+        uint32_t cls = (uint32_t)ledger_seq();\
+        hook_account(SBUF(acc));\
+        _01_02_ENCODE_TT                   (buf_out, ttPAYMENT                      );      /* uint16  | size   3 */ \
+        _02_02_ENCODE_FLAGS                (buf_out, tfCANONICAL                    );      /* uint32  | size   5 */ \
+        _02_03_ENCODE_TAG_SRC              (buf_out, src_tag                        );      /* uint32  | size   5 */ \
+        _02_04_ENCODE_SEQUENCE             (buf_out, 0                              );      /* uint32  | size   5 */ \
+        _02_14_ENCODE_TAG_DST              (buf_out, dest_tag                       );      /* uint32  | size   5 */ \
+        _02_26_ENCODE_FLS                  (buf_out, cls + 1                        );      /* uint32  | size   6 */ \
+        _02_27_ENCODE_LLS                  (buf_out, cls + 5                        );      /* uint32  | size   6 */ \
+        _06_01_ENCODE_TL_AMOUNT            (buf_out, tlamt                          );      /* amount  | size  48 */ \
+        uint8_t* fee_ptr = buf_out;\
+        _06_08_ENCODE_DROPS_FEE            (buf_out, 0                              );      /* amount  | size   9 */ \
+        _07_03_ENCODE_SIGNING_PUBKEY_NULL  (buf_out                                 );      /* pk      | size  35 */ \
+        _08_01_ENCODE_ACCOUNT_SRC          (buf_out, acc                            );      /* account | size  22 */ \
+        _08_03_ENCODE_ACCOUNT_DST          (buf_out, to_address                     );      /* account | size  22 */ \
+        etxn_details((uint32_t)buf_out, PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE);             /* emitdet | size 1?? */  \
+        int64_t fee = etxn_fee_base(buf_out_master, PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE);                          \ 
+        _06_08_ENCODE_DROPS_FEE            (fee_ptr, fee                            );                               \
+    }
+
+
+
+#endif
+

hook/genesis/headers/sfcodes.h

@@ -0,0 +1,215 @@
+// For documentation please see: https://xrpl-hooks.readme.io/reference/
+// Generated using generate_sfcodes.sh
+#define sfCloseResolution ((16U << 16U) + 1U)
+#define sfMethod ((16U << 16U) + 2U)
+#define sfTransactionResult ((16U << 16U) + 3U)
+#define sfTickSize ((16U << 16U) + 16U)
+#define sfUNLModifyDisabling ((16U << 16U) + 17U)
+#define sfHookResult ((16U << 16U) + 18U)
+#define sfLedgerEntryType ((1U << 16U) + 1U)
+#define sfTransactionType ((1U << 16U) + 2U)
+#define sfSignerWeight ((1U << 16U) + 3U)
+#define sfTransferFee ((1U << 16U) + 4U)
+#define sfVersion ((1U << 16U) + 16U)
+#define sfHookStateChangeCount ((1U << 16U) + 17U)
+#define sfHookEmitCount ((1U << 16U) + 18U)
+#define sfHookExecutionIndex ((1U << 16U) + 19U)
+#define sfHookApiVersion ((1U << 16U) + 20U)
+#define sfNetworkID ((2U << 16U) + 1U)
+#define sfFlags ((2U << 16U) + 2U)
+#define sfSourceTag ((2U << 16U) + 3U)
+#define sfSequence ((2U << 16U) + 4U)
+#define sfPreviousTxnLgrSeq ((2U << 16U) + 5U)
+#define sfLedgerSequence ((2U << 16U) + 6U)
+#define sfCloseTime ((2U << 16U) + 7U)
+#define sfParentCloseTime ((2U << 16U) + 8U)
+#define sfSigningTime ((2U << 16U) + 9U)
+#define sfExpiration ((2U << 16U) + 10U)
+#define sfTransferRate ((2U << 16U) + 11U)
+#define sfWalletSize ((2U << 16U) + 12U)
+#define sfOwnerCount ((2U << 16U) + 13U)
+#define sfDestinationTag ((2U << 16U) + 14U)
+#define sfHighQualityIn ((2U << 16U) + 16U)
+#define sfHighQualityOut ((2U << 16U) + 17U)
+#define sfLowQualityIn ((2U << 16U) + 18U)
+#define sfLowQualityOut ((2U << 16U) + 19U)
+#define sfQualityIn ((2U << 16U) + 20U)
+#define sfQualityOut ((2U << 16U) + 21U)
+#define sfStampEscrow ((2U << 16U) + 22U)
+#define sfBondAmount ((2U << 16U) + 23U)
+#define sfLoadFee ((2U << 16U) + 24U)
+#define sfOfferSequence ((2U << 16U) + 25U)
+#define sfFirstLedgerSequence ((2U << 16U) + 26U)
+#define sfLastLedgerSequence ((2U << 16U) + 27U)
+#define sfTransactionIndex ((2U << 16U) + 28U)
+#define sfOperationLimit ((2U << 16U) + 29U)
+#define sfReferenceFeeUnits ((2U << 16U) + 30U)
+#define sfReserveBase ((2U << 16U) + 31U)
+#define sfReserveIncrement ((2U << 16U) + 32U)
+#define sfSetFlag ((2U << 16U) + 33U)
+#define sfClearFlag ((2U << 16U) + 34U)
+#define sfSignerQuorum ((2U << 16U) + 35U)
+#define sfCancelAfter ((2U << 16U) + 36U)
+#define sfFinishAfter ((2U << 16U) + 37U)
+#define sfSignerListID ((2U << 16U) + 38U)
+#define sfSettleDelay ((2U << 16U) + 39U)
+#define sfTicketCount ((2U << 16U) + 40U)
+#define sfTicketSequence ((2U << 16U) + 41U)
+#define sfNFTokenTaxon ((2U << 16U) + 42U)
+#define sfMintedNFTokens ((2U << 16U) + 43U)
+#define sfBurnedNFTokens ((2U << 16U) + 44U)
+#define sfHookStateCount ((2U << 16U) + 45U)
+#define sfEmitGeneration ((2U << 16U) + 46U)
+#define sfLockCount ((2U << 16U) + 47U)
+#define sfRewardTime ((2U << 16U) + 98U)
+#define sfRewardLgrFirst ((2U << 16U) + 99U)
+#define sfRewardLgrLast ((2U << 16U) + 100U)
+#define sfIndexNext ((3U << 16U) + 1U)
+#define sfIndexPrevious ((3U << 16U) + 2U)
+#define sfBookNode ((3U << 16U) + 3U)
+#define sfOwnerNode ((3U << 16U) + 4U)
+#define sfBaseFee ((3U << 16U) + 5U)
+#define sfExchangeRate ((3U << 16U) + 6U)
+#define sfLowNode ((3U << 16U) + 7U)
+#define sfHighNode ((3U << 16U) + 8U)
+#define sfDestinationNode ((3U << 16U) + 9U)
+#define sfCookie ((3U << 16U) + 10U)
+#define sfServerVersion ((3U << 16U) + 11U)
+#define sfNFTokenOfferNode ((3U << 16U) + 12U)
+#define sfEmitBurden ((3U << 16U) + 13U)
+#define sfHookInstructionCount ((3U << 16U) + 17U)
+#define sfHookReturnCode ((3U << 16U) + 18U)
+#define sfReferenceCount ((3U << 16U) + 19U)
+#define sfRewardAccumulator ((3U << 16U) + 100U)
+#define sfEmailHash ((4U << 16U) + 1U)
+#define sfTakerPaysCurrency ((10U << 16U) + 1U)
+#define sfTakerPaysIssuer ((10U << 16U) + 2U)
+#define sfTakerGetsCurrency ((10U << 16U) + 3U)
+#define sfTakerGetsIssuer ((10U << 16U) + 4U)
+#define sfLedgerHash ((5U << 16U) + 1U)
+#define sfParentHash ((5U << 16U) + 2U)
+#define sfTransactionHash ((5U << 16U) + 3U)
+#define sfAccountHash ((5U << 16U) + 4U)
+#define sfPreviousTxnID ((5U << 16U) + 5U)
+#define sfLedgerIndex ((5U << 16U) + 6U)
+#define sfWalletLocator ((5U << 16U) + 7U)
+#define sfRootIndex ((5U << 16U) + 8U)
+#define sfAccountTxnID ((5U << 16U) + 9U)
+#define sfNFTokenID ((5U << 16U) + 10U)
+#define sfEmitParentTxnID ((5U << 16U) + 11U)
+#define sfEmitNonce ((5U << 16U) + 12U)
+#define sfEmitHookHash ((5U << 16U) + 13U)
+#define sfBookDirectory ((5U << 16U) + 16U)
+#define sfInvoiceID ((5U << 16U) + 17U)
+#define sfNickname ((5U << 16U) + 18U)
+#define sfAmendment ((5U << 16U) + 19U)
+#define sfHookOn ((5U << 16U) + 20U)
+#define sfDigest ((5U << 16U) + 21U)
+#define sfChannel ((5U << 16U) + 22U)
+#define sfConsensusHash ((5U << 16U) + 23U)
+#define sfCheckID ((5U << 16U) + 24U)
+#define sfValidatedHash ((5U << 16U) + 25U)
+#define sfPreviousPageMin ((5U << 16U) + 26U)
+#define sfNextPageMin ((5U << 16U) + 27U)
+#define sfNFTokenBuyOffer ((5U << 16U) + 28U)
+#define sfNFTokenSellOffer ((5U << 16U) + 29U)
+#define sfHookStateKey ((5U << 16U) + 30U)
+#define sfHookHash ((5U << 16U) + 31U)
+#define sfHookNamespace ((5U << 16U) + 32U)
+#define sfHookSetTxnID ((5U << 16U) + 33U)
+#define sfOfferID ((5U << 16U) + 34U)
+#define sfEscrowID ((5U << 16U) + 35U)
+#define sfURITokenID ((5U << 16U) + 36U)
+#define sfAmount ((6U << 16U) + 1U)
+#define sfBalance ((6U << 16U) + 2U)
+#define sfLimitAmount ((6U << 16U) + 3U)
+#define sfTakerPays ((6U << 16U) + 4U)
+#define sfTakerGets ((6U << 16U) + 5U)
+#define sfLowLimit ((6U << 16U) + 6U)
+#define sfHighLimit ((6U << 16U) + 7U)
+#define sfFee ((6U << 16U) + 8U)
+#define sfSendMax ((6U << 16U) + 9U)
+#define sfDeliverMin ((6U << 16U) + 10U)
+#define sfMinimumOffer ((6U << 16U) + 16U)
+#define sfRippleEscrow ((6U << 16U) + 17U)
+#define sfDeliveredAmount ((6U << 16U) + 18U)
+#define sfNFTokenBrokerFee ((6U << 16U) + 19U)
+#define sfHookCallbackFee ((6U << 16U) + 20U)
+#define sfLockedBalance ((6U << 16U) + 21U)
+#define sfPublicKey ((7U << 16U) + 1U)
+#define sfMessageKey ((7U << 16U) + 2U)
+#define sfSigningPubKey ((7U << 16U) + 3U)
+#define sfTxnSignature ((7U << 16U) + 4U)
+#define sfURI ((7U << 16U) + 5U)
+#define sfSignature ((7U << 16U) + 6U)
+#define sfDomain ((7U << 16U) + 7U)
+#define sfFundCode ((7U << 16U) + 8U)
+#define sfRemoveCode ((7U << 16U) + 9U)
+#define sfExpireCode ((7U << 16U) + 10U)
+#define sfCreateCode ((7U << 16U) + 11U)
+#define sfMemoType ((7U << 16U) + 12U)
+#define sfMemoData ((7U << 16U) + 13U)
+#define sfMemoFormat ((7U << 16U) + 14U)
+#define sfFulfillment ((7U << 16U) + 16U)
+#define sfCondition ((7U << 16U) + 17U)
+#define sfMasterSignature ((7U << 16U) + 18U)
+#define sfUNLModifyValidator ((7U << 16U) + 19U)
+#define sfValidatorToDisable ((7U << 16U) + 20U)
+#define sfValidatorToReEnable ((7U << 16U) + 21U)
+#define sfHookStateData ((7U << 16U) + 22U)
+#define sfHookReturnString ((7U << 16U) + 23U)
+#define sfHookParameterName ((7U << 16U) + 24U)
+#define sfHookParameterValue ((7U << 16U) + 25U)
+#define sfBlob ((7U << 16U) + 26U)
+#define sfAccount ((8U << 16U) + 1U)
+#define sfOwner ((8U << 16U) + 2U)
+#define sfDestination ((8U << 16U) + 3U)
+#define sfIssuer ((8U << 16U) + 4U)
+#define sfAuthorize ((8U << 16U) + 5U)
+#define sfUnauthorize ((8U << 16U) + 6U)
+#define sfRegularKey ((8U << 16U) + 8U)
+#define sfNFTokenMinter ((8U << 16U) + 9U)
+#define sfEmitCallback ((8U << 16U) + 10U)
+#define sfHookAccount ((8U << 16U) + 16U)
+#define sfIndexes ((19U << 16U) + 1U)
+#define sfHashes ((19U << 16U) + 2U)
+#define sfAmendments ((19U << 16U) + 3U)
+#define sfNFTokenOffers ((19U << 16U) + 4U)
+#define sfHookNamespaces ((19U << 16U) + 5U)
+#define sfPaths ((18U << 16U) + 1U)
+#define sfTransactionMetaData ((14U << 16U) + 2U)
+#define sfCreatedNode ((14U << 16U) + 3U)
+#define sfDeletedNode ((14U << 16U) + 4U)
+#define sfModifiedNode ((14U << 16U) + 5U)
+#define sfPreviousFields ((14U << 16U) + 6U)
+#define sfFinalFields ((14U << 16U) + 7U)
+#define sfNewFields ((14U << 16U) + 8U)
+#define sfTemplateEntry ((14U << 16U) + 9U)
+#define sfMemo ((14U << 16U) + 10U)
+#define sfSignerEntry ((14U << 16U) + 11U)
+#define sfNFToken ((14U << 16U) + 12U)
+#define sfEmitDetails ((14U << 16U) + 13U)
+#define sfHook ((14U << 16U) + 14U)
+#define sfSigner ((14U << 16U) + 16U)
+#define sfMajority ((14U << 16U) + 18U)
+#define sfDisabledValidator ((14U << 16U) + 19U)
+#define sfEmittedTxn ((14U << 16U) + 20U)
+#define sfHookExecution ((14U << 16U) + 21U)
+#define sfHookDefinition ((14U << 16U) + 22U)
+#define sfHookParameter ((14U << 16U) + 23U)
+#define sfHookGrant ((14U << 16U) + 24U)
+#define sfSigners ((15U << 16U) + 3U)
+#define sfSignerEntries ((15U << 16U) + 4U)
+#define sfTemplate ((15U << 16U) + 5U)
+#define sfNecessary ((15U << 16U) + 6U)
+#define sfSufficient ((15U << 16U) + 7U)
+#define sfAffectedNodes ((15U << 16U) + 8U)
+#define sfMemos ((15U << 16U) + 9U)
+#define sfNFTokens ((15U << 16U) + 10U)
+#define sfHooks ((15U << 16U) + 11U)
+#define sfMajorities ((15U << 16U) + 16U)
+#define sfDisabledValidators ((15U << 16U) + 17U)
+#define sfHookExecutions ((15U << 16U) + 18U)
+#define sfHookParameters ((15U << 16U) + 19U)
+#define sfHookGrants ((15U << 16U) + 20U)
+#define sfActiveValidators ((15U << 16U) + 95U)

hook/genesis/headers/types.h

@@ -0,0 +1,239 @@
+#include <stdint.h>
+
+// 8 byte-int = 1 bytes
+#define SFL_CLOSERESOLUTION 1
+#define SFL_METHOD 1
+#define SFL_TRANSACTIONRESULT 1
+#define SFL_TICKSIZE 1
+#define SFL_UNLMODIFYDISABLING 1
+#define SFL_HOOKRESULT 1
+// 16 byte-int = 2 bytes
+#define SFL_LEDGERENTRYTYPE 2
+#define SFL_TRANSACTIONTYPE 2
+#define SFL_SIGNERWEIGHT 2
+#define SFL_TRANSFERFEE 2
+#define SFL_VERSION 2
+#define SFL_HOOKSTATECHANGECOUNT 2
+#define SFL_HOOKEMITCOUNT 2
+#define SFL_HOOKEXECUTIONINDEX 2
+#define SFL_HOOKAPIVERSION 2
+// 32 byte-int = 4 bytes
+#define SFL_NETWORKID 4
+#define SFL_FLAGS 4
+#define SFL_SOURCETAG 4
+#define SFL_SEQUENCE 4
+#define SFL_PREVIOUSTXNLGRSEQ 4
+#define SFL_LEDGERSEQUENCE 4
+#define SFL_CLOSETIME 4
+#define SFL_PARENTCLOSETIME 4
+#define SFL_SIGNINGTIME 4
+#define SFL_EXPIRATION 4
+#define SFL_TRANSFERRATE 4
+#define SFL_WALLETSIZE 4
+#define SFL_OWNERCOUNT 4
+#define SFL_DESTINATIONTAG 4
+#define SFL_HIGHQUALITYIN 4
+#define SFL_HIGHQUALITYOUT 4
+#define SFL_LOWQUALITYIN 4
+#define SFL_LOWQUALITYOUT 4
+#define SFL_QUALITYIN 4
+#define SFL_QUALITYOUT 4
+#define SFL_STAMPESCROW 4
+#define SFL_BONDAMOUNT 4
+#define SFL_LOADFEE 4
+#define SFL_OFFERSEQUENCE 4
+#define SFL_FIRSTLEDGERSEQUENCE 4
+#define SFL_LASTLEDGERSEQUENCE 4
+#define SFL_TRANSACTIONINDEX 4
+#define SFL_OPERATIONLIMIT 4
+#define SFL_REFERENCEFEEUNITS 4
+#define SFL_RESERVEBASE 4
+#define SFL_RESERVEINCREMENT 4
+#define SFL_SETFLAG 4
+#define SFL_CLEARFLAG 4
+#define SFL_SIGNERQUORUM 4
+#define SFL_CANCELAFTER 4
+#define SFL_FINISHAFTER 4
+#define SFL_SIGNERLISTID 4
+#define SFL_SETTLEDELAY 4
+#define SFL_TICKETCOUNT 4
+#define SFL_TICKETSEQUENCE 4
+#define SFL_NFTOKENTAXON 4
+#define SFL_MINTEDNFTOKENS 4
+#define SFL_BURNEDNFTOKENS 4
+#define SFL_HOOKSTATECOUNT 4
+#define SFL_EMITGENERATION 4
+#define SFL_LOCKCOUNT 4
+#define SFL_REWARDTIME 4
+#define SFL_REWARDLGRFIRST 4
+#define SFL_REWARDLGRLAST 4
+#define SFL_FIRSTNFTOKENSEQUENCE 4
+// 64 byte-int = 8 bytes
+#define SFL_INDEX_NEXT 8
+#define SFL_INDEX_PREVIOUS 8
+#define SFL_BOOK_NODE 8
+#define SFL_OWNER_NODE 8
+#define SFL_BASE_FEE 8
+#define SFL_EXCHANGE_RATE 8
+#define SFL_LOW_NODE 8
+#define SFL_HIGH_NODE 8
+#define SFL_DESTINATION_NODE 8
+#define SFL_COOKIE 8
+#define SFL_SERVER_VERSION 8
+#define SFL_EMIT_BURDEN 8
+#define SFL_NFTOKEN_OFFER_NODE 8
+#define SFL_HOOK_INSTRUCTION_COUNT 8
+#define SFL_HOOK_RETURN_CODE 8
+#define SFL_REFERENCE_COUNT 8
+#define SFL_REWARD_ACCUMULATOR 8
+// 128 byte-int = 4 bytes
+#define SFL_EMAIL_HASH 128
+// 160 byte-int = 4 bytes
+#define SFL_TAKER_PAYS_CURRENCY 160
+#define SFL_TAKER_PAYS_ISSUER 160
+#define SFL_TAKER_GETS_CURRENCY 160
+#define SFL_TAKER_GETS_ISSUER 160
+// 256 byte-int = ??? bytes
+#define SFL_LEDGER_HASH 256
+#define SFL_PARENT_HASH 256
+#define SFL_TRANSACTION_HASH 256
+#define SFL_ACCOUNT_HASH 256
+#define SFL_HOOK_ON 256
+#define SFL_PREVIOUS_TXN_ID 256
+#define SFL_LEDGER_INDEX 256
+#define SFL_WALLET_LOCATOR 256
+#define SFL_ROOT_INDEX 256
+#define SFL_ACCOUNT_TXN_ID 256
+#define SFL_NFTOKEN_ID 256
+#define SFL_EMIT_PARENT_TXN_ID 256
+#define SFL_EMIT_NONCE 256
+#define SFL_EMIT_HOOK_HASH 256
+// 256 byte-int = ??? bytes
+#define SFL_BOOK_DIRECTORY 256
+#define SFL_INVOICE_ID 256
+#define SFL_NICKNAME 256
+#define SFL_AMENDMENT 256
+#define SFL_DIGEST 256
+#define SFL_CHANNEL 256
+#define SFL_CONSENSUS_HASH 256
+#define SFL_CHECK_ID 256
+#define SFL_VALIDATED_HASH 256
+#define SFL_PREVIOUS_PAGE_MIN 256
+#define SFL_NEXT_PAGE_MIN 256
+#define SFL_NFTOKEN_BUY_OFFER 256
+#define SFL_NFTOKEN_SELL_OFFER 256
+#define SFL_HOOK_STATE_KEY 256
+#define SFL_HOOK_HASH 256
+#define SFL_HOOK_NAMESPACE 256
+#define SFL_HOOK_SET_TXN_ID 256
+#define SFL_OFFER_ID 256
+#define SFL_ESCROW_ID 256
+#define SFL_URITOKEN_ID 256
+// 20 bytes
+#define SFL_AMOUNT 20
+#define SFL_BALANCE 20
+#define SFL_LIMIT_AMOUNT 20
+#define SFL_TAKER_PAYS 20
+#define SFL_TAKER_GETS 20
+#define SFL_LOW_LIMIT 20
+#define SFL_HIGH_LIMIT 20
+#define SFL_FEE 20
+#define SFL_SEND_MAX 20
+#define SFL_DELIVER_MIN 20
+#define SFL_LOCKED_BALANCE 20
+// Unimplemented
+#define SFL_AMOUNT_MINIMUM_OFFER 8
+#define SFL_AMOUNT_RIPPLE_ESCROW 8
+#define SFL_AMOUNT_DELIVERED_AMOUNT 8
+#define SFL_AMOUNT_NFTOKEN_BROKER_FEE 8
+#define SFL_AMOUNT_HOOK_CALLBACK_FEE 8
+#define SFL_AMOUNT_BASE_FEE_DROPS 8
+#define SFL_AMOUNT_RESERVE_BASE_DROPS 8
+#define SFL_AMOUNT_RESERVE_INCREMENT_DROPS 8
+// Unimplemented
+#define SFL_VL_PUBLIC_KEY 64
+#define SFL_VL_MESSAGE_KEY 64
+#define SFL_VL_SIGNING_PUB_KEY 64
+// Unimplemented
+#define SFL_VL_TXN_SIGNATURE 96
+// Unimplemented
+#define SFL_VL_URI 256
+// Unimplemented
+#define SFL_VL_SIGNATURE 96
+// Unimplemented
+#define SFL_VL_DOMAIN 256
+#define SFL_VL_FUND_CODE 256
+#define SFL_VL_REMOVE_CODE 256
+#define SFL_VL_EXPIRE_CODE 256
+#define SFL_VL_CREATE_CODE 256
+#define SFL_VL_MEMO_TYPE 256
+#define SFL_VL_MEMO_DATA 256
+#define SFL_VL_MEMO_FORMAT 256
+#define SFL_VL_FULFILLMENT 256
+#define SFL_VL_CONDITION 256
+// Unimplemented
+#define SFL_VL_MASTER_SIGNATURE 96
+// Unimplemented
+#define SFL_VL_UNL_MODIFY_VALIDATOR 256
+#define SFL_VL_VALIDATOR_TO_DISABLE 256
+#define SFL_VL_VALIDATOR_TO_RE_ENABLE 256
+#define SFL_VL_HOOK_STATE_DATA 256
+#define SFL_VL_HOOK_RETURN_STRING 256
+#define SFL_VL_HOOK_PARAMETER_NAME 256
+#define SFL_VL_HOOK_PARAMETER_VALUE 256
+#define SFL_VL_BLOB 256
+// 20 bytes
+#define SFL_ACCOUNT 20
+#define SFL_OWNER 20
+#define SFL_DESTINATION 20
+#define SFL_ISSUER 20
+#define SFL_AUTHORIZE 20
+#define SFL_UNAUTHORIZE 20
+#define SFL_REGULAR_KEY 20
+#define SFL_NFTOKEN_MINTER 20
+#define SFL_EMIT_CALLBACK 20
+#define SFL_HOOK_ACCOUNT 20
+#define SFL_NFTOKEN_MINTER 20
+// Unimplemented
+#define SFL_PATHS 1
+// Unimplemented
+#define SFL_VECTOR256_INDEXES 32
+#define SFL_VECTOR256_HASHES 32
+#define SFL_VECTOR256_AMENDMENTS 32
+#define SFL_VECTOR256_NFTOKEN_OFFERS 32
+#define SFL_VECTOR256_HOOK_NAMESPACES 32
+// Unimplemented
+#define SFL_TRANSACTION_META_DATA 1
+#define SFL_CREATED_NODE 1
+#define SFL_DELETED_NODE 1
+#define SFL_MODIFIED_NODE 1
+#define SFL_PREVIOUS_FIELDS 1
+#define SFL_FINAL_FIELDS 1
+#define SFL_NEW_FIELDS 1
+#define SFL_TEMPLATE_ENTRY 1
+#define SFL_MEMO 1
+#define SFL_SIGNER_ENTRY 1
+#define SFL_NFTOKEN 1
+#define SFL_EMIT_DETAILS 1
+#define SFL_HOOK 1
+#define SFL_SIGNER 1
+#define SFL_MAJORITY 1
+#define SFL_DISABLED_VALIDATOR 1
+#define SFL_EMITTED_TXN 1
+#define SFL_HOOK_EXECUTION 1
+#define SFL_HOOK_DEFINITION 1
+#define SFL_HOOK_PARAMETER 1
+#define SFL_HOOK_GRANT 1
+#define SFL_SIGNERS 1
+#define SFL_SIGNER_ENTRIES 1
+#define SFL_TEMPLATE 1
+#define SFL_NECESSARY 1
+#define SFL_SUFFICIENT 1
+#define SFL_AFFECTED_NODES 1
+#define SFL_MEMOS 1
+#define SFL_NFTOKENS 1
+#define SFL_HOOKS 1
+#define SFL_MAJORITIES 1
+#define SFL_DISABLED_VALIDATORS 1
+#define SFL_HOOK_EXECUTIONS 1
+#define SFL_HOOK_EXECUTION 1

hook/genesis/makefile

@@ -1,9 +1,9 @@
 all: reward govern mint
 accept:
-	wasmcc accept.c -o accept.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc accept.c -o accept.wasm -Oz -Wl,--allow-undefined  -I./headers
 	hook-cleaner accept.wasm
 reward:
-	wasmcc reward.c -o reward.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc reward.c -o reward.wasm -Oz -Wl,--allow-undefined  -I./headers
 	wasm-opt reward.wasm -o reward.wasm \
 		--shrink-level=100000000 \
 		--coalesce-locals-learning \
@@ -58,7 +58,7 @@ reward:
 	hook-cleaner reward.wasm
 	guard_checker reward.wasm
 govern:
-	wasmcc govern.c -o govern.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc govern.c -o govern.wasm -Oz -Wl,--allow-undefined  -I./headers
 	wasm-opt govern.wasm -o govern.wasm \
 		--shrink-level=100000000 \
 		--coalesce-locals-learning \
@@ -113,7 +113,7 @@ govern:
 	hook-cleaner govern.wasm
 	guard_checker govern.wasm
 mint:
-	wasmcc mint.c -o mint.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc mint.c -o mint.wasm -Oz -Wl,--allow-undefined  -I./headers
 	wasm-opt mint.wasm -o mint.wasm \
 		--shrink-level=100000000 \
 		--coalesce-locals-learning \
@@ -142,5 +142,5 @@ mint:
 	hook-cleaner mint.wasm
 	guard_checker mint.wasm
 nftoken:
-	wasmcc nftoken.c -o nftoken.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc nftoken.c -o nftoken.wasm -Oz -Wl,--allow-undefined  -I./headers
 	hook-cleaner nftoken.wasm

hook/hookapi.h

@@ -38,6 +38,7 @@
 #define KEYLET_HOOK_DEFINITION 24
 #define KEYLET_HOOK_STATE_DIR 25
 #define KEYLET_CRON 26
+#define KEYLET_MANIFEST 37
 
 #define COMPARE_EQUAL 1U
 #define COMPARE_LESS 2U
@@ -49,4 +50,7 @@
 #include "macro.h"
 #include "tts.h"
 
+#include "ls_flags.h"
+#include "tx_flags.h"
+
 #endif

hook/ls_flags.h

@@ -0,0 +1,75 @@
+// Generated using generate_lsflags.sh
+
+#ifndef HOOKLSFLAGS_INCLUDED
+#define HOOKLSFLAGS_INCLUDED 1
+
+enum ltACCOUNT_ROOT {
+    lsfPasswordSpent = 0x00010000,
+    lsfRequireDestTag = 0x00020000,
+    lsfRequireAuth = 0x00040000,
+    lsfDisallowXRP = 0x00080000,
+    lsfDisableMaster = 0x00100000,
+    lsfNoFreeze = 0x00200000,
+    lsfGlobalFreeze = 0x00400000,
+    lsfDefaultRipple = 0x00800000,
+    lsfDepositAuth = 0x01000000,
+    lsfTshCollect = 0x02000000,
+    lsfDisallowIncomingNFTokenOffer = 0x04000000,
+    lsfDisallowIncomingCheck = 0x08000000,
+    lsfDisallowIncomingPayChan = 0x10000000,
+    lsfDisallowIncomingTrustline = 0x20000000,
+    lsfURITokenIssuer = 0x40000000,
+    lsfDisallowIncomingRemit = 0x80000000,
+    lsfAllowTrustLineClawback = 0x00001000,
+};
+enum ltOFFER {
+    lsfPassive = 0x00010000,
+    lsfSell = 0x00020000,
+};
+enum ltRIPPLE_STATE {
+    lsfLowReserve = 0x00010000,
+    lsfHighReserve = 0x00020000,
+    lsfLowAuth = 0x00040000,
+    lsfHighAuth = 0x00080000,
+    lsfLowNoRipple = 0x00100000,
+    lsfHighNoRipple = 0x00200000,
+    lsfLowFreeze = 0x00400000,
+    lsfHighFreeze = 0x00800000,
+    lsfLowDeepFreeze = 0x02000000,
+    lsfHighDeepFreeze = 0x04000000,
+    lsfAMMNode = 0x01000000,
+};
+enum ltSIGNER_LIST {
+    lsfOneOwnerCount = 0x00010000,
+};
+enum ltDIR_NODE {
+    lsfNFTokenBuyOffers = 0x00000001,
+    lsfNFTokenSellOffers = 0x00000002,
+    lsfEmittedDir = 0x00000004,
+};
+enum ltNFTOKEN_OFFER {
+    lsfSellNFToken = 0x00000001,
+};
+enum ltURI_TOKEN {
+    lsfBurnable = 0x00000001,
+};
+enum remarks {
+    lsfImmutable = 1,
+};
+enum ltMPTOKEN_ISSUANCE {
+    lsfMPTLocked = 0x00000001,
+    lsfMPTCanLock = 0x00000002,
+    lsfMPTRequireAuth = 0x00000004,
+    lsfMPTCanEscrow = 0x00000008,
+    lsfMPTCanTrade = 0x00000010,
+    lsfMPTCanTransfer = 0x00000020,
+    lsfMPTCanClawback = 0x00000040,
+};
+enum ltMPTOKEN {
+    lsfMPTAuthorized = 0x00000002,
+};
+enum ltCREDENTIAL {
+    lsfAccepted = 0x00010000,
+};
+
+#endif // HOOKLSFLAGS_INCLUDED

hook/sfcodes.h

@@ -152,6 +152,7 @@
 #define sfEscrowID ((5U << 16U) + 35U)
 #define sfURITokenID ((5U << 16U) + 36U)
 #define sfDomainID ((5U << 16U) + 37U)
+#define sfManifestID ((5U << 16U) + 91U)
 #define sfHookOnOutgoing ((5U << 16U) + 93U)
 #define sfHookOnIncoming ((5U << 16U) + 94U)
 #define sfCron ((5U << 16U) + 95U)
@@ -189,6 +190,7 @@
 #define sfSignatureReward ((6U << 16U) + 29U)
 #define sfMinAccountCreateAmount ((6U << 16U) + 30U)
 #define sfLPTokenBalance ((6U << 16U) + 31U)
+#define sfTrustLineRewardAccumulator ((6U << 16U) + 99U)
 #define sfPublicKey ((7U << 16U) + 1U)
 #define sfMessageKey ((7U << 16U) + 2U)
 #define sfSigningPubKey ((7U << 16U) + 3U)
@@ -220,6 +222,7 @@
 #define sfProvider ((7U << 16U) + 30U)
 #define sfMPTokenMetadata ((7U << 16U) + 31U)
 #define sfCredentialType ((7U << 16U) + 32U)
+#define sfHookName ((7U << 16U) + 97U)
 #define sfRemarkValue ((7U << 16U) + 98U)
 #define sfRemarkName ((7U << 16U) + 99U)
 #define sfAccount ((8U << 16U) + 1U)
@@ -255,6 +258,7 @@
 #define sfIssuingChainIssue ((24U << 16U) + 2U)
 #define sfAsset ((24U << 16U) + 3U)
 #define sfAsset2 ((24U << 16U) + 4U)
+#define sfClaimCurrency ((24U << 16U) + 5U)
 #define sfXChainBridge ((25U << 16U) + 1U)
 #define sfTransactionMetaData ((14U << 16U) + 2U)
 #define sfCreatedNode ((14U << 16U) + 3U)
@@ -274,7 +278,6 @@
 #define sfDisabledValidator ((14U << 16U) + 19U)
 #define sfEmittedTxn ((14U << 16U) + 20U)
 #define sfHookExecution ((14U << 16U) + 21U)
-#define sfHookDefinition ((14U << 16U) + 22U)
 #define sfHookParameter ((14U << 16U) + 23U)
 #define sfHookGrant ((14U << 16U) + 24U)
 #define sfVoteEntry ((14U << 16U) + 25U)
@@ -286,6 +289,7 @@
 #define sfXChainCreateAccountAttestationCollectionElement ((14U << 16U) + 31U)
 #define sfPriceData ((14U << 16U) + 32U)
 #define sfCredential ((14U << 16U) + 33U)
+#define sfManifest ((14U << 16U) + 90U)
 #define sfAmountEntry ((14U << 16U) + 91U)
 #define sfMintURIToken ((14U << 16U) + 92U)
 #define sfHookEmission ((14U << 16U) + 93U)
@@ -293,6 +297,8 @@
 #define sfActiveValidator ((14U << 16U) + 95U)
 #define sfGenesisMint ((14U << 16U) + 96U)
 #define sfRemark ((14U << 16U) + 97U)
+#define sfHighReward ((14U << 16U) + 98U)
+#define sfLowReward ((14U << 16U) + 99U)
 #define sfSigners ((15U << 16U) + 3U)
 #define sfSignerEntries ((15U << 16U) + 4U)
 #define sfTemplate ((15U << 16U) + 5U)

hook/tts.h

@@ -61,6 +61,7 @@
 #define ttNFTOKEN_MODIFY 70
 #define ttPERMISSIONED_DOMAIN_SET 71
 #define ttPERMISSIONED_DOMAIN_DELETE 72
+#define ttMANIFEST_SET 91
 #define ttCRON 92
 #define ttCRON_SET 93
 #define ttREMARKS_SET 94

hook/tx_flags.h

@@ -0,0 +1,117 @@
+// Generated using generate_txflags.sh
+#include "ls_flags.h"
+#include <stdint.h>
+
+enum UniversalFlags : uint32_t {
+    tfFullyCanonicalSig = 0x80000000,
+};
+
+enum AccountSetFlags : uint32_t {
+    tfRequireDestTag = 0x00010000,
+    tfOptionalDestTag = 0x00020000,
+    tfRequireAuth = 0x00040000,
+    tfOptionalAuth = 0x00080000,
+    tfDisallowXRP = 0x00100000,
+    tfAllowXRP = 0x00200000,
+};
+
+enum AccountFlags : uint32_t {
+    asfRequireDest = 1,
+    asfRequireAuth = 2,
+    asfDisallowXRP = 3,
+    asfDisableMaster = 4,
+    asfAccountTxnID = 5,
+    asfNoFreeze = 6,
+    asfGlobalFreeze = 7,
+    asfDefaultRipple = 8,
+    asfDepositAuth = 9,
+    asfAuthorizedNFTokenMinter = 10,
+    asfTshCollect = 11,
+    asfDisallowIncomingNFTokenOffer = 12,
+    asfDisallowIncomingCheck = 13,
+    asfDisallowIncomingPayChan = 14,
+    asfDisallowIncomingTrustline = 15,
+    asfDisallowIncomingRemit = 16,
+    asfAllowTrustLineClawback = 17,
+};
+
+enum OfferCreateFlags : uint32_t {
+    tfPassive = 0x00010000,
+    tfImmediateOrCancel = 0x00020000,
+    tfFillOrKill = 0x00040000,
+    tfSell = 0x00080000,
+};
+
+enum PaymentFlags : uint32_t {
+    tfNoRippleDirect = 0x00010000,
+    tfPartialPayment = 0x00020000,
+    tfLimitQuality = 0x00040000,
+};
+
+enum TrustSetFlags : uint32_t {
+    tfSetfAuth = 0x00010000,
+    tfSetNoRipple = 0x00020000,
+    tfClearNoRipple = 0x00040000,
+    tfSetFreeze = 0x00100000,
+    tfClearFreeze = 0x00200000,
+    tfSetDeepFreeze = 0x00400000,
+    tfClearDeepFreeze = 0x00800000
+};
+
+enum EnableAmendmentFlags : uint32_t {
+    tfGotMajority = 0x00010000,
+    tfLostMajority = 0x00020000,
+    tfTestSuite = 0x80000000,
+};
+
+enum PaymentChannelClaimFlags : uint32_t {
+    tfRenew = 0x00010000,
+    tfClose = 0x00020000,
+};
+
+enum NFTokenMintFlags : uint32_t {
+    tfBurnable = 0x00000001,
+    tfOnlyXRP = 0x00000002,
+    tfTrustLine = 0x00000004,
+    tfTransferable = 0x00000008,
+    tfMutable = 0x00000010,
+    tfStrongTSH = 0x00008000,
+};
+
+enum MPTokenIssuanceCreateFlags : uint32_t {
+    tfMPTCanLock = lsfMPTCanLock,
+    tfMPTRequireAuth = lsfMPTRequireAuth,
+    tfMPTCanEscrow = lsfMPTCanEscrow,
+    tfMPTCanTrade = lsfMPTCanTrade,
+    tfMPTCanTransfer = lsfMPTCanTransfer,
+    tfMPTCanClawback = lsfMPTCanClawback,
+};
+
+enum MPTokenAuthorizeFlags : uint32_t {
+    tfMPTUnauthorize = 0x00000001,
+};
+
+enum MPTokenIssuanceSetFlags : uint32_t {
+    tfMPTLock = 0x00000001,
+    tfMPTUnlock = 0x00000002,
+};
+
+enum NFTokenCreateOfferFlags : uint32_t {
+    tfSellNFToken = 0x00000001,
+};
+
+enum ClaimRewardFlags : uint32_t {
+    tfOptOut = 0x00000001,
+};
+
+enum CronSetFlags : uint32_t {
+    tfCronUnset = 0x00000001,
+};
+
+enum AMMClawbackFlags : uint32_t {
+    tfClawTwoAssets = 0x00000001,
+};
+
+enum BridgeModifyFlags : uint32_t {
+    tfClearAccountCreateAmount = 0x00010000,
+};

include/xrpl/basics/MathUtilities.h

@@ -23,9 +23,66 @@
 #include <algorithm>
 #include <cassert>
 #include <cstddef>
+#include <cstdint>
+#include <limits>
+#include <optional>
 
 namespace ripple {
 
+/** Add two signed 64-bit integers, returning std::nullopt when the exact
+ *  mathematical sum is not representable in std::int64_t.
+ */
+[[nodiscard]] constexpr std::optional<std::int64_t>
+checkedAdd(std::int64_t a, std::int64_t b) noexcept
+{
+    using L = std::numeric_limits<std::int64_t>;
+
+    if ((b > 0 && a > L::max() - b) || (b < 0 && a < L::min() - b))
+        return std::nullopt;
+
+    return a + b;
+}
+
+/** Subtract two signed 64-bit integers, returning std::nullopt when the exact
+ *  mathematical difference is not representable in std::int64_t.
+ */
+[[nodiscard]] constexpr std::optional<std::int64_t>
+checkedSub(std::int64_t a, std::int64_t b) noexcept
+{
+    using L = std::numeric_limits<std::int64_t>;
+
+    if ((b > 0 && a < L::min() + b) || (b < 0 && a > L::max() + b))
+        return std::nullopt;
+
+    return a - b;
+}
+
+namespace detail {
+using i64_limits = std::numeric_limits<std::int64_t>;
+
+static_assert(checkedAdd(0, 0) == 0);
+static_assert(checkedAdd(1, -1) == 0);
+static_assert(checkedAdd(-5, 2) == -3);
+static_assert(!checkedAdd(i64_limits::max(), 1).has_value());
+static_assert(!checkedAdd(i64_limits::min(), -1).has_value());
+static_assert(checkedAdd(i64_limits::max() - 1, 1) == i64_limits::max());
+static_assert(checkedAdd(i64_limits::min(), i64_limits::max()) == -1);
+static_assert(checkedAdd(i64_limits::max(), i64_limits::min()) == -1);
+static_assert(!checkedAdd(i64_limits::max(), i64_limits::max()).has_value());
+static_assert(!checkedAdd(i64_limits::min(), i64_limits::min()).has_value());
+
+static_assert(checkedSub(0, 0) == 0);
+static_assert(checkedSub(1, 1) == 0);
+static_assert(checkedSub(-5, 2) == -7);
+static_assert(checkedSub(-5, -2) == -3);
+static_assert(!checkedSub(i64_limits::min(), 1).has_value());
+static_assert(!checkedSub(i64_limits::max(), -1).has_value());
+static_assert(checkedSub(i64_limits::min() + 1, 1) == i64_limits::min());
+static_assert(checkedSub(-1, i64_limits::max()) == i64_limits::min());
+static_assert(!checkedSub(i64_limits::max(), i64_limits::min()).has_value());
+static_assert(!checkedSub(i64_limits::min(), i64_limits::max()).has_value());
+}  // namespace detail
+
 /** Calculate one number divided by another number in percentage.
  * The result is rounded up to the next integer, and capped in the range [0,100]
  * E.g. calculatePercent(1, 100) = 1 because 1/100 = 0.010000

include/xrpl/basics/ResolverAsio.h

@@ -22,7 +22,8 @@
 
 #include <xrpl/basics/Resolver.h>
 #include <xrpl/beast/utility/Journal.h>
-#include <boost/asio/io_service.hpp>
+
+#include <boost/asio/io_context.hpp>
 
 namespace ripple {
 
@@ -32,7 +33,7 @@ public:
     explicit ResolverAsio() = default;
 
     static std::unique_ptr<ResolverAsio>
-    New(boost::asio::io_service&, beast::Journal);
+    New(boost::asio::io_context&, beast::Journal);
 };
 
 }  // namespace ripple

include/xrpl/basics/UTF8.h

@@ -0,0 +1,60 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2025 XRPL Labs
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_UTF8_H_INCLUDED
+#define RIPPLE_BASICS_UTF8_H_INCLUDED
+
+#include <xrpl/basics/Slice.h>
+
+namespace ripple {
+
+/** Check that a byte sequence is well-formed UTF-8, excluding the two
+    noncharacters U+FFFE and U+FFFF.
+
+    Rejects:
+      - overlong encodings;
+      - UTF-16 surrogate halves (U+D800..U+DFFF);
+      - scalar values above U+10FFFF, and 0xF5..0xFF lead bytes;
+      - stray continuation bytes;
+      - multi-byte sequences truncated by the end of the buffer;
+      - U+FFFE and U+FFFF (EF BF BE, EF BF BF).
+
+    U+FFFE and U+FFFF are well-formed, but have no use in a URI or a name
+    and exist to be misread: U+FFFE is a byte-swapped BOM, so a client that
+    transcodes to UTF-16/32 and sniffs the byte order can be pushed into
+    decoding the rest of the string with the wrong endianness, and both are
+    commonly used as in-band sentinels. They have always been rejected by
+    URIToken and HookName validation, and this function preserves that.
+
+    This is consensus-critical. For every input the previous decoder could
+    evaluate without reading past the end of the buffer, the result is
+    identical to it. The only difference is that truncated trailing
+    sequences, where the previous decoder read out of bounds, are now always
+    rejected. Any further change to what this accepts needs an amendment.
+
+    @param s The bytes to check.
+
+    @note Total: every byte read is within s.
+*/
+bool
+isValidUTF8(Slice const& s) noexcept;
+
+}  // namespace ripple
+
+#endif

include/xrpl/beast/asio/io_latency_probe.h

@@ -22,7 +22,8 @@
 
 #include <xrpl/beast/utility/instrumentation.h>
 #include <boost/asio/basic_waitable_timer.hpp>
-#include <boost/asio/io_service.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/post.hpp>
 
 #include <chrono>
 #include <condition_variable>
@@ -31,7 +32,7 @@
 
 namespace beast {
 
-/** Measures handler latency on an io_service queue. */
+/** Measures handler latency on an io_context queue. */
 template <class Clock>
 class io_latency_probe
 {
@@ -43,12 +44,12 @@ private:
     std::condition_variable_any m_cond;
     std::size_t m_count;
     duration const m_period;
-    boost::asio::io_service& m_ios;
+    boost::asio::io_context& m_ios;
     boost::asio::basic_waitable_timer<std::chrono::steady_clock> m_timer;
     bool m_cancel;
 
 public:
-    io_latency_probe(duration const& period, boost::asio::io_service& ios)
+    io_latency_probe(duration const& period, boost::asio::io_context& ios)
         : m_count(1)
         , m_period(period)
         , m_ios(ios)
@@ -63,16 +64,16 @@ public:
         cancel(lock, true);
     }
 
-    /** Return the io_service associated with the latency probe. */
+    /** Return the io_context associated with the latency probe. */
     /** @{ */
-    boost::asio::io_service&
-    get_io_service()
+    boost::asio::io_context&
+    get_io_context()
     {
         return m_ios;
     }
 
-    boost::asio::io_service const&
-    get_io_service() const
+    boost::asio::io_context const&
+    get_io_context() const
     {
         return m_ios;
     }
@@ -108,8 +109,10 @@ public:
         std::lock_guard lock(m_mutex);
         if (m_cancel)
             throw std::logic_error("io_latency_probe is canceled");
-        m_ios.post(sample_op<Handler>(
-            std::forward<Handler>(handler), Clock::now(), false, this));
+        boost::asio::post(
+            m_ios,
+            sample_op<Handler>(
+                std::forward<Handler>(handler), Clock::now(), false, this));
     }
 
     /** Initiate continuous i/o latency sampling.
@@ -123,8 +126,10 @@ public:
         std::lock_guard lock(m_mutex);
         if (m_cancel)
             throw std::logic_error("io_latency_probe is canceled");
-        m_ios.post(sample_op<Handler>(
-            std::forward<Handler>(handler), Clock::now(), true, this));
+        boost::asio::post(
+            m_ios,
+            sample_op<Handler>(
+                std::forward<Handler>(handler), Clock::now(), true, this));
     }
 
 private:
@@ -235,12 +240,13 @@ private:
                     // The latency is too high to maintain the desired
                     // period so don't bother with a timer.
                     //
-                    m_probe->m_ios.post(
+                    boost::asio::post(
+                        m_probe->m_ios,
                         sample_op<Handler>(m_handler, now, m_repeat, m_probe));
                 }
                 else
                 {
-                    m_probe->m_timer.expires_from_now(when - now);
+                    m_probe->m_timer.expires_after(when - now);
                     m_probe->m_timer.async_wait(
                         sample_op<Handler>(m_handler, now, m_repeat, m_probe));
                 }
@@ -253,7 +259,8 @@ private:
             if (!m_probe)
                 return;
             typename Clock::time_point const now(Clock::now());
-            m_probe->m_ios.post(
+            boost::asio::post(
+                m_probe->m_ios,
                 sample_op<Handler>(m_handler, now, m_repeat, m_probe));
         }
     };

include/xrpl/beast/test/yield_to.h

@@ -8,9 +8,12 @@
 #ifndef BEAST_TEST_YIELD_TO_HPP
 #define BEAST_TEST_YIELD_TO_HPP
 
-#include <boost/asio/io_service.hpp>
+#include <boost/asio/executor_work_guard.hpp>
+#include <boost/asio/io_context.hpp>
 #include <boost/asio/spawn.hpp>
 #include <boost/optional.hpp>
+#include <boost/thread/csbl/memory/allocator_arg.hpp>
+
 #include <condition_variable>
 #include <functional>
 #include <mutex>
@@ -29,10 +32,12 @@ namespace test {
 class enable_yield_to
 {
 protected:
-    boost::asio::io_service ios_;
+    boost::asio::io_context ios_;
 
 private:
-    boost::optional<boost::asio::io_service::work> work_;
+    boost::optional<boost::asio::executor_work_guard<
+        boost::asio::io_context::executor_type>>
+        work_;
     std::vector<std::thread> threads_;
     std::mutex m_;
     std::condition_variable cv_;
@@ -42,7 +47,8 @@ public:
     /// The type of yield context passed to functions.
     using yield_context = boost::asio::yield_context;
 
-    explicit enable_yield_to(std::size_t concurrency = 1) : work_(ios_)
+    explicit enable_yield_to(std::size_t concurrency = 1)
+        : work_(boost::asio::make_work_guard(ios_))
     {
         threads_.reserve(concurrency);
         while (concurrency--)
@@ -56,9 +62,9 @@ public:
             t.join();
     }
 
-    /// Return the `io_service` associated with the object
-    boost::asio::io_service&
-    get_io_service()
+    /// Return the `io_context` associated with the object
+    boost::asio::io_context&
+    get_io_context()
     {
         return ios_;
     }
@@ -111,13 +117,18 @@ enable_yield_to::spawn(F0&& f, FN&&... fn)
 {
     boost::asio::spawn(
         ios_,
+        boost::allocator_arg,
+        boost::context::fixedsize_stack(2 * 1024 * 1024),
         [&](yield_context yield) {
             f(yield);
             std::lock_guard lock{m_};
             if (--running_ == 0)
                 cv_.notify_all();
         },
-        boost::coroutines::attributes(2 * 1024 * 1024));
+        [](std::exception_ptr e) {
+            if (e)
+                std::rethrow_exception(e);
+        });
     spawn(fn...);
 }
 

include/xrpl/hook/Enum.h

@@ -16,6 +16,7 @@
 #define featureHooksUpdate1 "1"
 #define featureHooksUpdate2 "1"
 #define fix20250131 "1"
+#define fixGuardDepth32 "1"
 namespace hook_api {
 struct Rules
 {
@@ -312,6 +313,7 @@ enum keylet_code : uint32_t {
     MPTOKEN = 34,
     CREDENTIAL = 35,
     PERMISSIONED_DOMAIN = 36,
+    MANIFEST = 37,
 };
 }
 
@@ -319,7 +321,7 @@ namespace compare_mode {
 enum compare_mode : uint32_t { EQUAL = 1, LESS = 2, GREATER = 4 };
 }
 
-enum hook_return_code : int64_t {
+enum class hook_return_code : int64_t {
     SUCCESS =
         0,  // return codes > 0 are reserved for hook apis to return "success"
     OUT_OF_BOUNDS =
@@ -381,12 +383,12 @@ enum hook_return_code : int64_t {
     INVALID_KEY = -41,   // user supplied key was not valid
     NOT_A_STRING = -42,  // nul terminator missing from a string argument
     MEM_OVERLAP = -43,   // one or more specified buffers are the same memory
-    TOO_MANY_STATE_MODIFICATIONS = -44,  // more than 5000 modified state
+    TOO_MANY_STATE_MODIFICATIONS = -44,  // more than 256 modified state
                                          // entires in the combined hook chains
     TOO_MANY_NAMESPACES = -45
 };
 
-enum ExitType : uint8_t {
+enum class ExitType : uint8_t {
     UNSET = 0,
     WASM_ERROR = 1,
     ROLLBACK = 2,
@@ -443,6 +445,7 @@ getImportWhitelist(Rules const& rules)
 
 enum GuardRulesVersion : uint64_t {
     GuardRuleFix20250131 = 0x00000001,
+    GuardRuleDepth32 = 0x00000002,
 };
 
 inline uint64_t
@@ -451,6 +454,8 @@ getGuardRulesVersion(Rules const& rules)
     uint64_t version = 0;
     if (rules.enabled(fix20250131))
         version |= GuardRuleFix20250131;
+    if (rules.enabled(fixGuardDepth32))
+        version |= GuardRuleDepth32;
     return version;
 }
 

include/xrpl/hook/Guard.h

@@ -87,7 +87,7 @@ parseSignedLeb128(
         }
         *end_offset = i;
         if (shift < 64 && (b & 0x40U))
-            val |= (~0 << shift);
+            val |= (~int64_t{0} << shift);
 
         return val;
     }
@@ -204,9 +204,13 @@ struct WasmBlkInf
     }
 // compute worst case execution time
 inline uint64_t
-compute_wce(const WasmBlkInf* blk, int level, bool* recursion_limit_reached)
+compute_wce(
+    const WasmBlkInf* blk,
+    int level,
+    int max_level,
+    bool* recursion_limit_reached)
 {
-    if (level > 16)
+    if (level > max_level)
     {
         *recursion_limit_reached = true;
         return 0;
@@ -233,8 +237,8 @@ compute_wce(const WasmBlkInf* blk, int level, bool* recursion_limit_reached)
 
     if (blk->children.size() > 0)
         for (auto const& child : blk->children)
-            worst_case_execution +=
-                compute_wce(child, level + 1, recursion_limit_reached);
+            worst_case_execution += compute_wce(
+                child, level + 1, max_level, recursion_limit_reached);
 
     if (parent == 0 ||
         parent->iteration_bound ==
@@ -788,12 +792,17 @@ check_guard(
     }
 
     bool recursion_limit_reached = false;
-    uint64_t wce = compute_wce(&(*root), 0, &recursion_limit_reached);
+    int max_level = 16;
+    if (rulesVersion & hook_api::GuardRuleDepth32)
+        max_level = 32;
+    uint64_t wce =
+        compute_wce(&(*root), 0, max_level, &recursion_limit_reached);
     if (recursion_limit_reached)
     {
         GUARDLOG(hook::log::NESTING_LIMIT)
             << "GuardCheck "
-            << "Maximum allowable depth of blocks reached (16 levels). Flatten "
+            << "Maximum allowable depth of blocks reached (" << max_level
+            << " levels). Flatten "
                "your loops and conditions!.\n";
         return {};
     }

include/xrpl/hook/Macro.h

@@ -89,58 +89,69 @@
 
 #define WASM_VAL_TYPE(T, b) CAT2(TYP_, T)
 
-#define DECLARE_HOOK_FUNCTION(R, F, ...)                         \
-    R F(hook::HookContext& hookCtx,                              \
-        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__( \
-            COMMA __VA_ARGS__));                                 \
-    extern WasmEdge_Result WasmFunction##F(                      \
-        void* data_ptr,                                          \
-        const WasmEdge_CallingFrameContext* frameCtx,            \
-        const WasmEdge_Value* in,                                \
-        WasmEdge_Value* out);                                    \
-    extern WasmEdge_ValType WasmFunctionParams##F[];             \
-    extern WasmEdge_ValType WasmFunctionResult##F[];             \
-    extern WasmEdge_FunctionTypeContext* WasmFunctionType##F;    \
+#define UNSIGNED_TYPE(T) std::make_unsigned_t<T>
+
+#define DECLARE_HOOK_FUNCTION(R, F, ...)                          \
+    std::variant<UNSIGNED_TYPE(R), hook_api::hook_return_code> F( \
+        hook::HookContext& hookCtx,                               \
+        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__(  \
+            COMMA __VA_ARGS__));                                  \
+    extern WasmEdge_Result WasmFunction##F(                       \
+        void* data_ptr,                                           \
+        const WasmEdge_CallingFrameContext* frameCtx,             \
+        const WasmEdge_Value* in,                                 \
+        WasmEdge_Value* out);                                     \
+    extern WasmEdge_ValType WasmFunctionParams##F[];              \
+    extern WasmEdge_ValType WasmFunctionResult##F[];              \
+    extern WasmEdge_FunctionTypeContext* WasmFunctionType##F;     \
     extern WasmEdge_String WasmFunctionName##F;
 
-#define DEFINE_HOOK_FUNCTION(R, F, ...)                             \
-    WasmEdge_Result hook_api::WasmFunction##F(                      \
-        void* data_ptr,                                             \
-        const WasmEdge_CallingFrameContext* frameCtx,               \
-        const WasmEdge_Value* in,                                   \
-        WasmEdge_Value* out)                                        \
-    {                                                               \
-        __VA_OPT__(int _stack = 0;)                                 \
-        __VA_OPT__(FOR_VARS(VAR_ASSIGN, 2, __VA_ARGS__);)           \
-        hook::HookContext* hookCtx =                                \
-            reinterpret_cast<hook::HookContext*>(data_ptr);         \
-        R return_code = hook_api::F(                                \
-            *hookCtx,                                               \
-            *const_cast<WasmEdge_CallingFrameContext*>(frameCtx)    \
-                __VA_OPT__(COMMA STRIP_TYPES(__VA_ARGS__)));        \
-        if (return_code == RC_ROLLBACK || return_code == RC_ACCEPT) \
-            return WasmEdge_Result_Terminate;                       \
-        out[0] = RET_ASSIGN(R, return_code);                        \
-        return WasmEdge_Result_Success;                             \
-    };                                                              \
-    WasmEdge_ValType hook_api::WasmFunctionParams##F[] = {          \
-        __VA_OPT__(FOR_VARS(WASM_VAL_TYPE, 0, __VA_ARGS__))};       \
-    WasmEdge_ValType hook_api::WasmFunctionResult##F[1] = {         \
-        WASM_VAL_TYPE(R, dummy)};                                   \
-    WasmEdge_FunctionTypeContext* hook_api::WasmFunctionType##F =   \
-        WasmEdge_FunctionTypeCreate(                                \
-            WasmFunctionParams##F,                                  \
-            VA_NARGS(NULL __VA_OPT__(, __VA_ARGS__)),               \
-            WasmFunctionResult##F,                                  \
-            1);                                                     \
-    WasmEdge_String hook_api::WasmFunctionName##F =                 \
-        WasmEdge_StringCreateByCString(#F);                         \
-    R hook_api::F(                                                  \
-        hook::HookContext& hookCtx,                                 \
-        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__(    \
+#define DEFINE_HOOK_FUNCTION(R, F, ...)                                        \
+    WasmEdge_Result hook_api::WasmFunction##F(                                 \
+        void* data_ptr,                                                        \
+        const WasmEdge_CallingFrameContext* frameCtx,                          \
+        const WasmEdge_Value* in,                                              \
+        WasmEdge_Value* out)                                                   \
+    {                                                                          \
+        __VA_OPT__(int _stack = 0;)                                            \
+        __VA_OPT__(FOR_VARS(VAR_ASSIGN, 2, __VA_ARGS__);)                      \
+        hook::HookContext* hookCtx =                                           \
+            reinterpret_cast<hook::HookContext*>(data_ptr);                    \
+        auto const& return_code = hook_api::F(                                 \
+            *hookCtx,                                                          \
+            *const_cast<WasmEdge_CallingFrameContext*>(frameCtx)               \
+                __VA_OPT__(COMMA STRIP_TYPES(__VA_ARGS__)));                   \
+        if (std::holds_alternative<hook_api::hook_return_code>(return_code) && \
+            (std::get<hook_api::hook_return_code>(return_code) ==              \
+                 RC_ROLLBACK ||                                                \
+             std::get<hook_api::hook_return_code>(return_code) == RC_ACCEPT))  \
+            return WasmEdge_Result_Terminate;                                  \
+        out[0] = RET_ASSIGN(                                                   \
+            R,                                                                 \
+            std::holds_alternative<UNSIGNED_TYPE(R)>(return_code)              \
+                ? std::get<UNSIGNED_TYPE(R)>(return_code)                      \
+                : R(std::get<hook_api::hook_return_code>(return_code)));       \
+        return WasmEdge_Result_Success;                                        \
+    };                                                                         \
+    WasmEdge_ValType hook_api::WasmFunctionParams##F[] = {                     \
+        __VA_OPT__(FOR_VARS(WASM_VAL_TYPE, 0, __VA_ARGS__))};                  \
+    WasmEdge_ValType hook_api::WasmFunctionResult##F[1] = {                    \
+        WASM_VAL_TYPE(R, dummy)};                                              \
+    WasmEdge_FunctionTypeContext* hook_api::WasmFunctionType##F =              \
+        WasmEdge_FunctionTypeCreate(                                           \
+            WasmFunctionParams##F,                                             \
+            VA_NARGS(NULL __VA_OPT__(, __VA_ARGS__)),                          \
+            WasmFunctionResult##F,                                             \
+            1);                                                                \
+    WasmEdge_String hook_api::WasmFunctionName##F =                            \
+        WasmEdge_StringCreateByCString(#F);                                    \
+    std::variant<UNSIGNED_TYPE(R), hook_api::hook_return_code> hook_api::F(    \
+        hook::HookContext& hookCtx,                                            \
+        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__(               \
             COMMA __VA_ARGS__))
 
 #define HOOK_SETUP()                                                 \
+    using enum hook_api::hook_return_code;                           \
     try                                                              \
     {                                                                \
         [[maybe_unused]] ApplyContext& applyCtx = hookCtx.applyCtx;  \
@@ -203,7 +214,7 @@
     host_memory_ptr,                  \
     guest_memory_length)              \
     {                                 \
-        int64_t bytes_written = 0;    \
+        uint64_t bytes_written = 0;   \
         WRITE_WASM_MEMORY(            \
             bytes_written,            \
             guest_dst_ptr,            \
@@ -233,7 +244,13 @@
                                << "Tried to accept/rollback but specified "    \
                                   "memory outside of the wasm instance "       \
                                << "limit when specifying a reason string";     \
-                return OUT_OF_BOUNDS;                                          \
+                if (!view.rules().enabled(fix20260929))                        \
+                    return OUT_OF_BOUNDS;                                      \
+                /* fix20260929: terminate as a rollback so the                 \
+                   failure is visible in HookExecution metadata */             \
+                hookCtx.result.exitType = hook_api::ExitType::ROLLBACK;        \
+                hookCtx.result.exitCode = (int64_t)OUT_OF_BOUNDS;              \
+                return RC_ROLLBACK;                                            \
             }                                                                  \
             /* assembly script and some other languages use utf16 for strings  \
              */                                                                \
@@ -272,7 +289,7 @@
             data_ptr < (data_ptr_in))                                    \
             return INTERNAL_ERROR;                                       \
         if (data_len == 0)                                               \
-            return 0;                                                    \
+            return 0ULL;                                                 \
         if ((write_ptr_in) == 0)                                         \
             return data_as_int64(data_ptr, data_len);                    \
         if (data_len > (write_len_in))                                   \

include/xrpl/json/json_reader.h

@@ -215,7 +215,7 @@ Reader::parse(Value& root, BufferSequence const& bs)
     std::string s;
     s.reserve(buffer_size(bs));
     for (auto const& b : bs)
-        s.append(buffer_cast<char const*>(b), buffer_size(b));
+        s.append(static_cast<char const*>(b.data()), buffer_size(b));
     return parse(s, root);
 }
 

include/xrpl/protocol/Feature.h

@@ -33,35 +33,39 @@
  *
  * Steps required to add new features to the code:
  *
- * 1) In this file, increment `numFeatures` and add a uint256 declaration
- *    for the feature at the bottom
- * 2) Add a uint256 definition for the feature to the corresponding source
- *    file (Feature.cpp). Use `registerFeature` to create the feature with
- *    the feature's name, `Supported::no`, and `VoteBehavior::DefaultNo`. This
- *    should be the only place the feature's name appears in code as a string.
- * 3) Use the uint256 as the parameter to `view.rules.enabled()` to
- *    control flow into new code that this feature limits.
- * 4) If the feature development is COMPLETE, and the feature is ready to be
- *    SUPPORTED, change the `registerFeature` parameter to Supported::yes.
- * 5) When the feature is ready to be ENABLED, change the `registerFeature`
- *    parameter to `VoteBehavior::DefaultYes`.
- * In general, any newly supported amendments (`Supported::yes`) should have
- * a `VoteBehavior::DefaultNo` for at least one full release cycle. High
- * priority bug fixes can be an exception to this rule of thumb.
+ * 1) Add the appropriate XRPL_FEATURE or XRPL_FIX macro definition for the
+ *    feature to features.macro with the feature's name, `Supported::no`, and
+ *    `VoteBehavior::DefaultNo`.
+ *
+ * 2) Use the generated variable name as the parameter to `view.rules.enabled()`
+ *    to control flow into new code that this feature limits. (featureName or
+ *    fixName)
+ *
+ * 3) If the feature development is COMPLETE, and the feature is ready to be
+ *    SUPPORTED, change the macro parameter in features.macro to Supported::yes.
+ *
+ * 4) In general, any newly supported amendments (`Supported::yes`) should have
+ *    a `VoteBehavior::DefaultNo` indefinitely so that external governance can
+ *    make the decision on when to activate it. High priority bug fixes can be
+ *    an exception to this rule. In such cases, ensure the fix has been
+ *    clearly communicated to the community using appropriate channels,
+ *    then change the macro parameter in features.macro to
+ *    `VoteBehavior::DefaultYes`. The communication process is beyond
+ *    the scope of these instructions.
+ *
  *
  * When a feature has been enabled for several years, the conditional code
  * may be removed, and the feature "retired". To retire a feature:
- * 1) Remove the uint256 declaration from this file.
- * 2) MOVE the uint256 definition in Feature.cpp to the "retired features"
- *    section at the end of the file.
- * 3) CHANGE the name of the variable to start with "retired".
- * 4) CHANGE the parameters of the `registerFeature` call to `Supported::yes`
- *    and `VoteBehavior::DefaultNo`.
+ *
+ * 1) MOVE the macro definition in features.macro to the "retired features"
+ *    section at the end of the file, and change the macro to XRPL_RETIRE.
+ *
  * The feature must remain registered and supported indefinitely because it
- * still exists in the ledger, but there is no need to vote for it because
- * there's nothing to vote for. If it is removed completely from the code, any
- * instances running that code will get amendment blocked. Removing the
- * feature from the ledger is beyond the scope of these instructions.
+ * may exist in the Amendments object on ledger. There is no need to vote
+ * for it because there's nothing to vote for. If the feature definition is
+ * removed completely from the code, any instances running that code will get
+ * amendment blocked. Removing the feature from the ledger is beyond the scope
+ * of these instructions.
  *
  */
 
@@ -76,11 +80,32 @@ allAmendments();
 
 namespace detail {
 
+#pragma push_macro("XRPL_FEATURE")
+#undef XRPL_FEATURE
+#pragma push_macro("XRPL_FIX")
+#undef XRPL_FIX
+#pragma push_macro("XRPL_RETIRE")
+#undef XRPL_RETIRE
+
+#define XRPL_FEATURE(name, supported, vote) +1
+#define XRPL_FIX(name, supported, vote) +1
+#define XRPL_RETIRE(name) +1
+
 // This value SHOULD be equal to the number of amendments registered in
 // Feature.cpp. Because it's only used to reserve storage, and determine how
 // large to make the FeatureBitset, it MAY be larger. It MUST NOT be less than
 // the actual number of amendments. A LogicError on startup will verify this.
-static constexpr std::size_t numFeatures = 113;
+static constexpr std::size_t numFeatures =
+    (0 +
+#include <xrpl/protocol/detail/features.macro>
+    );
+
+#undef XRPL_RETIRE
+#pragma pop_macro("XRPL_RETIRE")
+#undef XRPL_FIX
+#pragma pop_macro("XRPL_FIX")
+#undef XRPL_FEATURE
+#pragma pop_macro("XRPL_FEATURE")
 
 /** Amendments that this server supports and the default voting behavior.
    Whether they are enabled depends on the Rules defined in the validated
@@ -320,12 +345,17 @@ foreachFeature(FeatureBitset bs, F&& f)
 #undef XRPL_FEATURE
 #pragma push_macro("XRPL_FIX")
 #undef XRPL_FIX
+#pragma push_macro("XRPL_RETIRE")
+#undef XRPL_RETIRE
 
 #define XRPL_FEATURE(name, supported, vote) extern uint256 const feature##name;
 #define XRPL_FIX(name, supported, vote) extern uint256 const fix##name;
+#define XRPL_RETIRE(name)
 
 #include <xrpl/protocol/detail/features.macro>
 
+#undef XRPL_RETIRE
+#pragma pop_macro("XRPL_RETIRE")
 #undef XRPL_FIX
 #pragma pop_macro("XRPL_FIX")
 #undef XRPL_FEATURE

include/xrpl/protocol/IOUAmount.h

@@ -97,6 +97,12 @@ public:
 
     static IOUAmount
     minPositiveAmount();
+
+    friend std::ostream&
+    operator<<(std::ostream& os, IOUAmount const& x)
+    {
+        return os << to_string(x);
+    }
 };
 
 inline IOUAmount::IOUAmount(beast::Zero)

include/xrpl/protocol/Import.h

@@ -24,6 +24,7 @@
 #include <xrpl/basics/Log.h>
 #include <xrpl/basics/StringUtilities.h>
 #include <xrpl/basics/base64.h>
+#include <xrpl/basics/chrono.h>
 #include <xrpl/json/json_reader.h>
 #include <charconv>
 
@@ -118,8 +119,9 @@ syntaxCheckProof(
         {
             if (!proof["hash"].isString() ||
                 proof["hash"].asString().size() != 64 ||
-                !proof["key"].isString() ||
+                !isHex(proof["hash"].asString()) || !proof["key"].isString() ||
                 proof["key"].asString().size() != 64 ||
+                !isHex(proof["key"].asString()) ||
                 !proof["children"].isObject())
             {
                 JLOG(j.warn()) << "XPOP.transaction.proof tree node has wrong "
@@ -132,7 +134,11 @@ syntaxCheckProof(
 
         for (const auto& branch : proof.getMemberNames())
         {
-            if (branch.size() != 1 || !isHex(branch))
+            // Upper case only: the txroot computation only looks up "0"-"F",
+            // so any other key would be silently ignored.
+            if (branch.size() != 1 ||
+                branch.find_first_not_of("0123456789ABCDEF") !=
+                    std::string::npos)
             {
                 JLOG(j.warn())
                     << "XPOP.transaction.proof child node was not 0-F "
@@ -143,9 +149,9 @@ syntaxCheckProof(
             const auto& node = proof[branch];
             if (!node.isObject() || !node["hash"].isString() ||
                 node["hash"].asString().size() != 64 ||
-                !node["key"].isString() ||
+                !isHex(node["hash"].asString()) || !node["key"].isString() ||
                 node["key"].asString().size() != 64 ||
-                !node["children"].isObject())
+                !isHex(node["key"].asString()) || !node["children"].isObject())
             {
                 JLOG(j.warn())
                     << "XPOP.transaction.proof tree node has wrong format";
@@ -465,6 +471,45 @@ getVLInfo(Json::Value const& xpop, beast::Journal const& j)
     return {{sequence, m->masterKey}};
 }
 
+// <effective, expiration> of the unl blob, effective defaulting to the epoch
+inline std::optional<std::pair<NetClock::time_point, NetClock::time_point>>
+getVLWindow(Json::Value const& xpop, beast::Journal const& j)
+{
+    auto const data =
+        base64_decode(xpop[jss::validation][jss::unl][jss::blob].asString());
+    Json::Reader r;
+    Json::Value parsed;
+    if (!r.parse(data, parsed) || !parsed.isObject())
+    {
+        JLOG(j.warn()) << "Import: unl blob was not a json object (after "
+                          "base64 decoding)";
+        return {};
+    }
+
+    // const, so that operator[] does not insert missing members
+    Json::Value const& list = parsed;
+    auto const time = [&list](Json::StaticString const& field)
+        -> std::optional<NetClock::time_point> {
+        auto const& v = list[field];
+        if (!v.isInt() || v.asInt() < 0)
+            return {};
+        return NetClock::time_point{NetClock::duration{v.asUInt()}};
+    };
+
+    auto const validUntil = time(jss::expiration);
+    auto const validFrom = list.isMember(jss::effective)
+        ? time(jss::effective)
+        : std::optional<NetClock::time_point>{NetClock::time_point{}};
+    if (!validUntil || !validFrom)
+    {
+        JLOG(j.warn()) << "Import: unl blob json (after base64 decoding) "
+                          "had missing or invalid effective/expiration";
+        return {};
+    }
+
+    return {{*validFrom, *validUntil}};
+}
+
 }  // namespace ripple
 
 #endif

include/xrpl/protocol/Indexes.h

@@ -372,6 +372,10 @@ permissionedDomain(AccountID const& account, std::uint32_t seq) noexcept;
 
 Keylet
 permissionedDomain(uint256 const& domainID) noexcept;
+
+Keylet
+manifest(PublicKey const& pk) noexcept;
+
 }  // namespace keylet
 
 // Everything below is deprecated and should be removed in favor of keylets:

include/xrpl/protocol/Rules.h

@@ -28,6 +28,9 @@
 
 namespace ripple {
 
+bool
+isFeatureEnabled(uint256 const& feature);
+
 class DigestAwareReadView;
 
 /** Rules controlling protocol behavior. */

include/xrpl/protocol/TER.h

@@ -69,6 +69,7 @@ enum TELcodes : TERUnderlyingType {
     telIMPORT_VL_KEY_NOT_RECOGNISED,
     telCAN_NOT_QUEUE_IMPORT,
     telENV_RPC_FAILED,
+    telMANIFEST_FEE_MISMATCH,
 };
 
 //------------------------------------------------------------------------------
@@ -137,6 +138,7 @@ enum TEMcodes : TERUnderlyingType {
     temXCHAIN_BRIDGE_NONDOOR_OWNER,
     temXCHAIN_BRIDGE_BAD_MIN_ACCOUNT_CREATE_AMOUNT,
     temXCHAIN_BRIDGE_BAD_REWARD_AMOUNT,
+    temXCHAIN_TOO_MANY_ATTESTATIONS,  // RESERVED - not used
 
     temHOOK_DATA_TOO_LARGE,
     temEMPTY_DID,
@@ -193,6 +195,8 @@ enum TEFcodes : TERUnderlyingType {
     tefNONDIR_EMIT,
     tefIMPORT_BLACKHOLED,
     tefINVALID_LEDGER_FIX_TYPE,
+    tefPAST_MANIFEST_SEQ,
+    tefREVOKED_MANIFEST,
 };
 
 //------------------------------------------------------------------------------

include/xrpl/protocol/TxFlags.h

@@ -132,7 +132,7 @@ constexpr std::uint32_t tfTrustSetMask =
       tfClearFreeze | tfSetDeepFreeze | tfClearDeepFreeze);
 
 // EnableAmendment flags:
-enum EnableAmendmentFlags : std::uint32_t {
+enum EnableAmendmentFlags : uint32_t {
     tfGotMajority = 0x00010000,
     tfLostMajority = 0x00020000,
     tfTestSuite = 0x80000000,

include/xrpl/protocol/detail/features.macro

@@ -23,6 +23,9 @@
 #if !defined(XRPL_FIX)
 #error "undefined macro: XRPL_FIX"
 #endif
+#if !defined(XRPL_RETIRE)
+#error "undefined macro: XRPL_RETIRE"
+#endif
 
 // clang-format off
 
@@ -31,11 +34,22 @@
 // If you add an amendment here, then do not forget to increment `numFeatures`
 // in include/xrpl/protocol/Feature.h.
 
+XRPL_FIX    (20261005,                   Supported::yes, VoteBehavior::DefaultYes)
+XRPL_FEATURE(EscrowDestinationCancel,    Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FIX    (20260929,                   Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(HookOnV2_1,                 Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(OnChainManifests,           Supported::yes,  VoteBehavior::DefaultNo)
+XRPL_FIX    (HookMap,                    Supported::yes, VoteBehavior::DefaultYes)
+XRPL_FIX    (GuardDepth32,               Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(NamedHooks,                 Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(IOURewardClaim,             Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FIX    (IOULockedBalanceInvariant,  Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FIX    (ImportIssuer,               Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(HookAPISerializedType240,   Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(PermissionedDomains,        Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FEATURE(DynamicNFT,                 Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FEATURE(Credentials,                Supported::no,  VoteBehavior::DefaultNo)
-XRPL_FEATURE(AMMClawback,                Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(AMMClawback,                Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FEATURE(MPTokensV1,                 Supported::no,  VoteBehavior::DefaultNo)
 // InvariantsV1_1 will be changes to Supported::yes when all the
 // invariants expected to be included under it are complete.
@@ -52,18 +66,19 @@ XRPL_FIX    (FillOrKill,                 Supported::yes, VoteBehavior::DefaultYe
 XRPL_FEATURE(DID,                        Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FIX    (DisallowIncomingV1,         Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(XChainBridge,               Supported::no,  VoteBehavior::DefaultNo)
-XRPL_FEATURE(AMM,                        Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(AMM,                        Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FIX    (ReducedOffersV1,            Supported::yes, VoteBehavior::DefaultYes)
-XRPL_FEATURE(HooksUpdate2,               Supported::yes, VoteBehavior::DefaultNo);
-XRPL_FEATURE(HookOnV2,                   Supported::yes, VoteBehavior::DefaultNo);
-XRPL_FIX    (HookAPI20251128,            Supported::yes, VoteBehavior::DefaultYes);
-XRPL_FIX    (CronStacking,               Supported::yes, VoteBehavior::DefaultYes);
-XRPL_FEATURE(ExtendedHookState,          Supported::yes, VoteBehavior::DefaultNo);
-XRPL_FIX    (InvalidTxFlags,             Supported::yes, VoteBehavior::DefaultYes);
-XRPL_FEATURE(Cron,                       Supported::yes, VoteBehavior::DefaultNo);
-XRPL_FEATURE(IOUIssuerWeakTSH,           Supported::yes, VoteBehavior::DefaultNo);
-XRPL_FEATURE(DeepFreeze,                 Supported::yes, VoteBehavior::DefaultNo);
-XRPL_FIX    (ProvisionalDoubleThreading, Supported::yes, VoteBehavior::DefaultYes);
+XRPL_FEATURE(HooksUpdate2,               Supported::yes, VoteBehavior::DefaultNo)
+// replaced to HookOnV2_1
+XRPL_FEATURE(HookOnV2,                   Supported::no,  VoteBehavior::DefaultNo)
+XRPL_FIX    (HookAPI20251128,            Supported::yes, VoteBehavior::DefaultYes)
+XRPL_FIX    (CronStacking,               Supported::yes, VoteBehavior::DefaultYes)
+XRPL_FEATURE(ExtendedHookState,          Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FIX    (InvalidTxFlags,             Supported::yes, VoteBehavior::DefaultYes)
+XRPL_FEATURE(Cron,                       Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(IOUIssuerWeakTSH,           Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FEATURE(DeepFreeze,                 Supported::yes, VoteBehavior::DefaultNo)
+XRPL_FIX    (ProvisionalDoubleThreading, Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(Clawback,                   Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FIX    (RewardClaimFlags,           Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(HookCanEmit,                Supported::yes, VoteBehavior::DefaultNo)
@@ -79,8 +94,6 @@ XRPL_FIX    (240819,                     Supported::yes, VoteBehavior::DefaultYe
 XRPL_FIX    (NSDelete,                   Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(ZeroB2M,                    Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(Remit,                      Supported::yes, VoteBehavior::DefaultNo)
-XRPL_FIX    (XahauV2,                    Supported::yes, VoteBehavior::DefaultNo)
-XRPL_FIX    (XahauV1,                    Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(HooksUpdate1,               Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(XahauGenesis,               Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(Import,                     Supported::yes, VoteBehavior::DefaultYes)
@@ -147,4 +160,26 @@ XRPL_FIX    (NFTokenDirV1,          Supported::yes, VoteBehavior::Obsolete)
 XRPL_FEATURE(NonFungibleTokensV1,   Supported::yes, VoteBehavior::Obsolete)
 XRPL_FEATURE(CryptoConditionsSuite, Supported::yes, VoteBehavior::Obsolete)
 
+// The following amendments have been active for at least two years. Their
+// pre-amendment code has been removed and the identifiers are deprecated.
+// All known amendments and amendments that may appear in a validated
+// ledger must be registered either here or above with the "active" amendments
+XRPL_RETIRE(fixXahauV2)
+XRPL_RETIRE(fixXahauV1)
+XRPL_RETIRE(MultiSign)
+XRPL_RETIRE(TrustSetAuth)
+XRPL_RETIRE(FeeEscalation)
+XRPL_RETIRE(PayChan)
+XRPL_RETIRE(CryptoConditions)
+XRPL_RETIRE(TickSize)
+XRPL_RETIRE(fix1368)
+XRPL_RETIRE(Escrow)
+XRPL_RETIRE(fix1373)
+XRPL_RETIRE(EnforceInvariants)
+XRPL_RETIRE(SortedDirectories)
+XRPL_RETIRE(fix1201)
+XRPL_RETIRE(fix1512)
+XRPL_RETIRE(fix1523)
+XRPL_RETIRE(fix1528)
+
 // clang-format on

include/xrpl/protocol/detail/ledger_entries.macro

@@ -22,14 +22,14 @@
 #endif
 
 #ifndef LEDGER_ENTRY_DUPLICATE
-// The EXPAND macro is needed for Windows
+// The LEDGER_ENTRY_EXPAND macro is needed for Windows
 // https://stackoverflow.com/questions/5134523/msvc-doesnt-expand-va-args-correctly
-#define EXPAND(x) x
+#define LEDGER_ENTRY_EXPAND(x) x
 
 // The `LEDGER_ENTRY_DUPLICATE macro is needed to avoid JSS conflicts
 // Since some transactions and ledger entries have the same name (like `DepositPreauth`)
 // The compiler won't accept two instances of `JSS(DepositPreauth)`
-#define LEDGER_ENTRY_DUPLICATE(...) EXPAND(LEDGER_ENTRY(__VA_ARGS__))
+#define LEDGER_ENTRY_DUPLICATE(...) LEDGER_ENTRY_EXPAND(LEDGER_ENTRY(__VA_ARGS__))
 #endif
 
 /**
@@ -93,7 +93,7 @@ LEDGER_ENTRY(ltCHECK, 0x0043, Check, check, ({
 */
 LEDGER_ENTRY(ltHOOK_DEFINITION, 'D', HookDefinition, hook_definition, ({
     {sfHookHash,             soeREQUIRED},
-    {sfHookOn,               soeREQUIRED},
+    {sfHookOn,               soeOPTIONAL},
     {sfHookOnIncoming,       soeOPTIONAL},
     {sfHookOnOutgoing,       soeOPTIONAL},
     {sfHookCanEmit,          soeOPTIONAL},
@@ -262,6 +262,7 @@ LEDGER_ENTRY(ltACCOUNT_ROOT, 0x0061, AccountRoot, account, ({
     {sfHookStateScale,       soeOPTIONAL},
     {sfCron,                 soeOPTIONAL},
     {sfAMMID,                soeOPTIONAL},
+    {sfManifestID,           soeOPTIONAL},
 }))
 
 /** A ledger object which contains a list of object identifiers.
@@ -396,6 +397,8 @@ LEDGER_ENTRY(ltRIPPLE_STATE, 0x0072, RippleState, state, ({
     {sfHighQualityOut,       soeOPTIONAL},
     {sfLockedBalance,        soeOPTIONAL},
     {sfLockCount,            soeOPTIONAL},
+    {sfHighReward,           soeOPTIONAL},
+    {sfLowReward,            soeOPTIONAL},
 }))
 
 /** The ledger object which lists the network's fee settings.
@@ -590,6 +593,26 @@ LEDGER_ENTRY(ltDID, 0x008D, DID, did, ({
     {sfPreviousTxnLgrSeq,    soeREQUIRED},
 }))
 
-#undef EXPAND
+LEDGER_ENTRY(ltMANIFEST, 0x004D, Manifest, manifest_entry, ({
+    {sfAccount,             soeREQUIRED},
+    {sfPublicKey,           soeREQUIRED},
+    {sfSigningPubKey,       soeOPTIONAL}, /* may be absent if the master is revoked */
+    {sfSequence,            soeREQUIRED},
+    /* sfVersion defaults to 0 and is omitted from the signed payload when
+       absent. Storing it unconditionally would change the bytes and break
+       signature verification when the manifest is reconstructed. */
+    {sfVersion,             soeOPTIONAL},
+    {sfDomain,              soeOPTIONAL},
+    /* The signatures are mirrored so the object is a lossless copy of the
+       manifest and can be independently verified, and re-served to peers,
+       by any node reading it (see ManifestCache::applyLedger). */
+    {sfMasterSignature,     soeREQUIRED},
+    {sfSignature,           soeOPTIONAL}, /* absent if the master is revoked */
+    {sfManifestID,          soeOPTIONAL}, /* pointer to the identical other copy on the other key */
+    {sfPreviousTxnID,       soeREQUIRED},
+    {sfPreviousTxnLgrSeq,   soeREQUIRED},
+}))
+
+#undef LEDGER_ENTRY_EXPAND
 #undef LEDGER_ENTRY_DUPLICATE
 

include/xrpl/protocol/detail/sfields.macro

@@ -210,6 +210,7 @@ TYPED_SFIELD(sfOfferID,                  UINT256,   34)
 TYPED_SFIELD(sfEscrowID,                 UINT256,   35)
 TYPED_SFIELD(sfURITokenID,               UINT256,   36)
 TYPED_SFIELD(sfDomainID,                 UINT256,   37)
+TYPED_SFIELD(sfManifestID,               UINT256,   91)
 TYPED_SFIELD(sfHookOnOutgoing,           UINT256,   93)
 TYPED_SFIELD(sfHookOnIncoming,           UINT256,   94)
 TYPED_SFIELD(sfCron,                     UINT256,   95)
@@ -257,6 +258,7 @@ TYPED_SFIELD(sfPrice,                    AMOUNT,    28)
 TYPED_SFIELD(sfSignatureReward,          AMOUNT,    29)
 TYPED_SFIELD(sfMinAccountCreateAmount,   AMOUNT,    30)
 TYPED_SFIELD(sfLPTokenBalance,           AMOUNT,    31)
+TYPED_SFIELD(sfTrustLineRewardAccumulator,AMOUNT,   99)
 
 // variable length (common)
 TYPED_SFIELD(sfPublicKey,                VL,         1)
@@ -292,6 +294,7 @@ TYPED_SFIELD(sfAssetClass,               VL,        29)
 TYPED_SFIELD(sfProvider,                 VL,        30)
 TYPED_SFIELD(sfMPTokenMetadata,          VL,        31)
 TYPED_SFIELD(sfCredentialType,           VL,        32)
+TYPED_SFIELD(sfHookName,                 VL,        97)
 TYPED_SFIELD(sfRemarkValue,              VL,        98)
 TYPED_SFIELD(sfRemarkName,               VL,        99)
 
@@ -340,6 +343,7 @@ TYPED_SFIELD(sfLockingChainIssue,        ISSUE,      1)
 TYPED_SFIELD(sfIssuingChainIssue,        ISSUE,      2)
 TYPED_SFIELD(sfAsset,                    ISSUE,      3)
 TYPED_SFIELD(sfAsset2,                   ISSUE,      4)
+TYPED_SFIELD(sfClaimCurrency,            ISSUE,      5)
 
 // bridge
 TYPED_SFIELD(sfXChainBridge,             XCHAIN_BRIDGE, 1)
@@ -367,7 +371,7 @@ UNTYPED_SFIELD(sfMajority,               OBJECT,    18)
 UNTYPED_SFIELD(sfDisabledValidator,      OBJECT,    19)
 UNTYPED_SFIELD(sfEmittedTxn,             OBJECT,    20)
 UNTYPED_SFIELD(sfHookExecution,          OBJECT,    21)
-UNTYPED_SFIELD(sfHookDefinition,         OBJECT,    22)
+                                                 // 22 unused
 UNTYPED_SFIELD(sfHookParameter,          OBJECT,    23)
 UNTYPED_SFIELD(sfHookGrant,              OBJECT,    24)
 UNTYPED_SFIELD(sfVoteEntry,              OBJECT,    25)
@@ -379,6 +383,7 @@ UNTYPED_SFIELD(sfXChainClaimAttestationCollectionElement, OBJECT, 30)
 UNTYPED_SFIELD(sfXChainCreateAccountAttestationCollectionElement, OBJECT, 31)
 UNTYPED_SFIELD(sfPriceData,              OBJECT,    32)
 UNTYPED_SFIELD(sfCredential,             OBJECT,    33)
+UNTYPED_SFIELD(sfManifest,               OBJECT,    90)
 UNTYPED_SFIELD(sfAmountEntry,            OBJECT,    91)
 UNTYPED_SFIELD(sfMintURIToken,           OBJECT,    92)
 UNTYPED_SFIELD(sfHookEmission,           OBJECT,    93)
@@ -386,6 +391,8 @@ UNTYPED_SFIELD(sfImportVLKey,            OBJECT,    94)
 UNTYPED_SFIELD(sfActiveValidator,        OBJECT,    95)
 UNTYPED_SFIELD(sfGenesisMint,            OBJECT,    96)
 UNTYPED_SFIELD(sfRemark,                 OBJECT,    97)
+UNTYPED_SFIELD(sfHighReward,             OBJECT,    98)
+UNTYPED_SFIELD(sfLowReward,              OBJECT,    99)
 
 // array of objects (common)
 // ARRAY/1 is reserved for end of array

include/xrpl/protocol/detail/transactions.macro

@@ -500,6 +500,12 @@ TRANSACTION(ttPERMISSIONED_DOMAIN_DELETE, 72, PermissionedDomainDelete, ({
     {sfDomainID, soeREQUIRED},
 }))
 
+/* sfAccount is supplied by TxFormats::commonFields; listing it here as well
+   makes the SOTemplate reject the format at construction. */
+TRANSACTION(ttMANIFEST_SET, 91, SetManifest, ({
+    {sfManifest, soeREQUIRED},
+}))
+
 /* A pseudo-txn alarm signal for invoking a hook, emitted by validators after alarm set conditions are met */
 TRANSACTION(ttCRON, 92, Cron, ({
     {sfOwner, soeREQUIRED},
@@ -550,6 +556,7 @@ TRANSACTION(ttIMPORT, 97, Import, ({
   * from a specified hook */
 TRANSACTION(ttCLAIM_REWARD, 98, ClaimReward, ({
     {sfIssuer, soeOPTIONAL},
+    {sfClaimCurrency, soeOPTIONAL},
 }))
 
 /** This transaction invokes a hook, providing arbitrary data. Essentially as a 0 drop payment. **/

include/xrpl/protocol/jss.h

@@ -76,6 +76,7 @@ JSS(Holder);              // field.
 JSS(HookApiVersion);      // field
 JSS(HookCanEmit);         // field
 JSS(HookHash);            // field
+JSS(HookName);            // field
 JSS(HookNamespace);       // field
 JSS(HookOn);              // field
 JSS(HookOnIncoming);      // field
@@ -291,7 +292,9 @@ JSS(duration_us);             // out: NetworkOPs
 JSS(effective);               // out: ValidatorList
                               // in: UNL
 JSS(elapsed_seconds);
-JSS(enabled);                // out: AmendmentTable
+JSS(enabled);                // out: AmendmentTable (on-ledger);
+                             //      ServerDefinitions (this server)
+JSS(ledger_enabled);         // out: ServerDefinitions (on-ledger)
 JSS(engine_result);          // out: NetworkOPs, TransactionSign, Submit
 JSS(engine_result_code);     // out: NetworkOPs, TransactionSign, Submit
 JSS(engine_result_message);  // out: NetworkOPs, TransactionSign, Submit
@@ -349,6 +352,7 @@ JSS(hash_mismatches);       // out: catalogue
 JSS(have_header);           // out: InboundLedger
 JSS(have_state);            // out: InboundLedger
 JSS(have_transactions);     // out: InboundLedger
+JSS(hooks);                 // in/out: AccountInfo
 JSS(high);                  // out: BookChanges
 JSS(highest_sequence);      // out: AccountInfo
 JSS(highest_ticket);        // out: AccountInfo

include/xrpl/server/Port.h

@@ -93,8 +93,18 @@ struct Port
         return protocol.count("udp") > 0;
     }
 
+    bool
+    has_peer() const
+    {
+        return protocol.count("peer") > 0;
+    }
+
     // Maximum UDP packet size (default 64KB)
     std::size_t udp_packet_size = 65536;
+
+    // If this is a peer port, also listen for UDP Superhighway (XUSH)
+    // datagrams on the same port number.
+    bool udp_highway = false;
 };
 
 std::ostream&

include/xrpl/server/Server.h

@@ -24,7 +24,8 @@
 #include <xrpl/beast/utility/PropertyStream.h>
 #include <xrpl/server/Port.h>
 #include <xrpl/server/detail/ServerImpl.h>
-#include <boost/asio/io_service.hpp>
+
+#include <boost/asio/io_context.hpp>
 
 namespace ripple {
 
@@ -33,10 +34,10 @@ template <class Handler>
 std::unique_ptr<Server>
 make_Server(
     Handler& handler,
-    boost::asio::io_service& io_service,
+    boost::asio::io_context& io_context,
     beast::Journal journal)
 {
-    return std::make_unique<ServerImpl<Handler>>(handler, io_service, journal);
+    return std::make_unique<ServerImpl<Handler>>(handler, io_context, journal);
 }
 
 }  // namespace ripple

include/xrpl/server/Session.h

@@ -86,9 +86,7 @@ public:
              ++iter)
         {
             typename BufferSequence::value_type const& buffer(*iter);
-            write(
-                boost::asio::buffer_cast<void const*>(buffer),
-                boost::asio::buffer_size(buffer));
+            write(buffer.data(), boost::asio::buffer_size(buffer));
         }
     }
 
@@ -102,7 +100,7 @@ public:
 
     /** Detach the session.
         This holds the session open so that the response can be sent
-        asynchronously. Calls to io_service::run made by the server
+        asynchronously. Calls to io_context::run made by the server
         will not return until all detached sessions are closed.
     */
     virtual std::shared_ptr<Session>

include/xrpl/server/detail/BaseHTTPPeer.h

@@ -24,10 +24,12 @@
 #include <xrpl/beast/net/IPAddressConversion.h>
 #include <xrpl/beast/utility/instrumentation.h>
 #include <xrpl/server/Session.h>
+#include <xrpl/server/detail/Spawn.h>
 #include <xrpl/server/detail/io_list.h>
 #include <boost/asio/ip/tcp.hpp>
 #include <boost/asio/spawn.hpp>
 #include <boost/asio/ssl/stream.hpp>
+#include <boost/asio/strand.hpp>
 #include <boost/asio/streambuf.hpp>
 #include <boost/beast/core/stream_traits.hpp>
 #include <boost/beast/http/dynamic_body.hpp>
@@ -214,8 +216,8 @@ BaseHTTPPeer<Handler, Impl>::BaseHTTPPeer(
     ConstBufferSequence const& buffers)
     : port_(port)
     , handler_(handler)
-    , work_(executor)
-    , strand_(executor)
+    , work_(boost::asio::make_work_guard(executor))
+    , strand_(boost::asio::make_strand(executor))
     , remote_address_(remote_address)
     , journal_(journal)
 {
@@ -300,7 +302,13 @@ BaseHTTPPeer<Handler, Impl>::do_read(yield_context do_yield)
 {
     complete_ = false;
     error_code ec;
-    start_timer();
+    // Do not treat an established keep-alive waiting for its next request as
+    // an unfinished loopback request.
+    if (request_count_ == 0)
+        start_timer();
+    else
+        boost::beast::get_lowest_layer(impl().stream_)
+            .expires_after(std::chrono::seconds(timeoutSeconds));
     boost::beast::http::async_read(
         impl().stream_, read_buf_, message_, do_yield[ec]);
     cancel_timer();
@@ -355,7 +363,7 @@ BaseHTTPPeer<Handler, Impl>::on_write(
         return;
     if (graceful_)
         return do_close();
-    boost::asio::spawn(
+    util::spawn(
         strand_,
         std::bind(
             &BaseHTTPPeer<Handler, Impl>::do_read,
@@ -374,7 +382,7 @@ BaseHTTPPeer<Handler, Impl>::do_writer(
     {
         auto const p = impl().shared_from_this();
         resume = std::function<void(void)>([this, p, writer, keep_alive]() {
-            boost::asio::spawn(
+            util::spawn(
                 strand_,
                 std::bind(
                     &BaseHTTPPeer<Handler, Impl>::do_writer,
@@ -405,7 +413,7 @@ BaseHTTPPeer<Handler, Impl>::do_writer(
     if (!keep_alive)
         return do_close();
 
-    boost::asio::spawn(
+    util::spawn(
         strand_,
         std::bind(
             &BaseHTTPPeer<Handler, Impl>::do_read,
@@ -447,14 +455,14 @@ BaseHTTPPeer<Handler, Impl>::write(
     std::shared_ptr<Writer> const& writer,
     bool keep_alive)
 {
-    boost::asio::spawn(bind_executor(
+    util::spawn(
         strand_,
         std::bind(
             &BaseHTTPPeer<Handler, Impl>::do_writer,
             impl().shared_from_this(),
             writer,
             keep_alive,
-            std::placeholders::_1)));
+            std::placeholders::_1));
 }
 
 // DEPRECATED
@@ -489,12 +497,12 @@ BaseHTTPPeer<Handler, Impl>::complete()
     }
 
     // keep-alive
-    boost::asio::spawn(bind_executor(
+    util::spawn(
         strand_,
         std::bind(
             &BaseHTTPPeer<Handler, Impl>::do_read,
             impl().shared_from_this(),
-            std::placeholders::_1)));
+            std::placeholders::_1));
 }
 
 // DEPRECATED

include/xrpl/server/detail/BasePeer.h

@@ -89,8 +89,8 @@ BasePeer<Handler, Impl>::BasePeer(
               return "##" + std::to_string(++id) + " ";
           }())
     , j_(sink_)
-    , work_(executor)
-    , strand_(executor)
+    , work_(boost::asio::make_work_guard(executor))
+    , strand_(boost::asio::make_strand(executor))
 {
 }
 

include/xrpl/server/detail/BaseWSPeer.h

@@ -29,6 +29,7 @@
 #include <xrpl/server/detail/BasePeer.h>
 #include <xrpl/server/detail/LowestLayer.h>
 
+#include <boost/asio/error.hpp>
 #include <boost/beast/core/multi_buffer.hpp>
 #include <boost/beast/http/message.hpp>
 #include <boost/beast/websocket.hpp>
@@ -420,11 +421,17 @@ BaseWSPeer<Handler, Impl>::start_timer()
     // Max seconds without completing a message
     static constexpr std::chrono::seconds timeout{30};
     static constexpr std::chrono::seconds timeoutLocal{3};
-    error_code ec;
-    timer_.expires_from_now(
-        remote_endpoint().address().is_loopback() ? timeoutLocal : timeout, ec);
-    if (ec)
-        return fail(ec, "start_timer");
+
+    try
+    {
+        timer_.expires_after(
+            remote_endpoint().address().is_loopback() ? timeoutLocal : timeout);
+    }
+    catch (boost::system::system_error const& e)
+    {
+        return fail(e.code(), "start_timer");
+    }
+
     timer_.async_wait(bind_executor(
         strand_,
         std::bind(
@@ -438,8 +445,14 @@ template <class Handler, class Impl>
 void
 BaseWSPeer<Handler, Impl>::cancel_timer()
 {
-    error_code ec;
-    timer_.cancel(ec);
+    try
+    {
+        timer_.cancel();
+    }
+    catch (boost::system::system_error const&)
+    {
+        // ignored
+    }
 }
 
 template <class Handler, class Impl>

include/xrpl/server/detail/Door.h

@@ -69,7 +69,7 @@ private:
         stream_type stream_;
         socket_type& socket_;
         endpoint_type remote_address_;
-        boost::asio::io_context::strand strand_;
+        boost::asio::strand<boost::asio::io_context::executor_type> strand_;
         beast::Journal const j_;
 
     public:
@@ -95,7 +95,7 @@ private:
     Handler& handler_;
     boost::asio::io_context& ioc_;
     acceptor_type acceptor_;
-    boost::asio::io_context::strand strand_;
+    boost::asio::strand<boost::asio::io_context::executor_type> strand_;
     bool ssl_;
     bool plain_;
 
@@ -155,7 +155,7 @@ Door<Handler>::Detector::Detector(
     , stream_(std::move(stream))
     , socket_(stream_.socket())
     , remote_address_(remote_address)
-    , strand_(ioc_)
+    , strand_(boost::asio::make_strand(ioc_))
     , j_(j)
 {
 }
@@ -164,7 +164,7 @@ template <class Handler>
 void
 Door<Handler>::Detector::run()
 {
-    boost::asio::spawn(
+    util::spawn(
         strand_,
         std::bind(
             &Detector::do_detect,
@@ -269,7 +269,7 @@ Door<Handler>::reOpen()
         Throw<std::exception>();
     }
 
-    acceptor_.listen(boost::asio::socket_base::max_connections, ec);
+    acceptor_.listen(boost::asio::socket_base::max_listen_connections, ec);
     if (ec)
     {
         JLOG(j_.error()) << "Listen on port '" << port_.name
@@ -291,7 +291,7 @@ Door<Handler>::Door(
     , handler_(handler)
     , ioc_(io_context)
     , acceptor_(io_context)
-    , strand_(io_context)
+    , strand_(boost::asio::make_strand(io_context))
     , ssl_(
           port_.protocol.count("https") > 0 ||
           port_.protocol.count("wss") > 0 || port_.protocol.count("wss2") > 0 ||
@@ -307,7 +307,7 @@ template <class Handler>
 void
 Door<Handler>::run()
 {
-    boost::asio::spawn(
+    util::spawn(
         strand_,
         std::bind(
             &Door<Handler>::do_accept,
@@ -320,7 +320,8 @@ void
 Door<Handler>::close()
 {
     if (!strand_.running_in_this_thread())
-        return strand_.post(
+        return boost::asio::post(
+            strand_,
             std::bind(&Door<Handler>::close, this->shared_from_this()));
     error_code ec;
     acceptor_.close(ec);
@@ -400,7 +401,7 @@ Door<Handler>::do_accept(boost::asio::yield_context do_yield)
         {
             create(
                 ssl_,
-                boost::asio::null_buffers{},
+                boost::asio::const_buffer{},
                 std::move(stream),
                 remote_address);
         }

include/xrpl/server/detail/PlainHTTPPeer.h

@@ -103,7 +103,7 @@ PlainHTTPPeer<Handler>::run()
 {
     if (!this->handler_.onAccept(this->session(), this->remote_address_))
     {
-        boost::asio::spawn(
+        util::spawn(
             this->strand_,
             std::bind(&PlainHTTPPeer::do_close, this->shared_from_this()));
         return;
@@ -112,7 +112,7 @@ PlainHTTPPeer<Handler>::run()
     if (!socket_.is_open())
         return;
 
-    boost::asio::spawn(
+    util::spawn(
         this->strand_,
         std::bind(
             &PlainHTTPPeer::do_read,

include/xrpl/server/detail/SSLHTTPPeer.h

@@ -113,14 +113,14 @@ SSLHTTPPeer<Handler>::run()
 {
     if (!this->handler_.onAccept(this->session(), this->remote_address_))
     {
-        boost::asio::spawn(
+        util::spawn(
             this->strand_,
             std::bind(&SSLHTTPPeer::do_close, this->shared_from_this()));
         return;
     }
     if (!socket_.is_open())
         return;
-    boost::asio::spawn(
+    util::spawn(
         this->strand_,
         std::bind(
             &SSLHTTPPeer::do_handshake,
@@ -162,7 +162,7 @@ SSLHTTPPeer<Handler>::do_handshake(yield_context do_yield)
         this->port().protocol.count("https") > 0;
     if (http)
     {
-        boost::asio::spawn(
+        util::spawn(
             this->strand_,
             std::bind(
                 &SSLHTTPPeer::do_read,

include/xrpl/server/detail/ServerImpl.h

@@ -27,6 +27,8 @@
 #include <xrpl/server/detail/io_list.h>
 
 #include <boost/asio.hpp>
+#include <boost/asio/executor_work_guard.hpp>
+#include <boost/asio/io_context.hpp>
 
 #include <array>
 #include <chrono>
@@ -86,9 +88,11 @@ private:
 
     Handler& handler_;
     beast::Journal const j_;
-    boost::asio::io_service& io_service_;
-    boost::asio::io_service::strand strand_;
-    std::optional<boost::asio::io_service::work> work_;
+    boost::asio::io_context& io_context_;
+    boost::asio::strand<boost::asio::io_context::executor_type> strand_;
+    std::optional<boost::asio::executor_work_guard<
+        boost::asio::io_context::executor_type>>
+        work_;
 
     std::mutex m_;
     std::vector<Port> ports_;
@@ -101,7 +105,7 @@ private:
 public:
     ServerImpl(
         Handler& handler,
-        boost::asio::io_service& io_service,
+        boost::asio::io_context& io_context,
         beast::Journal journal);
 
     ~ServerImpl();
@@ -124,10 +128,10 @@ public:
         return ios_;
     }
 
-    boost::asio::io_service&
-    get_io_service()
+    boost::asio::io_context&
+    get_io_context()
     {
-        return io_service_;
+        return io_context_;
     }
 
     bool
@@ -141,13 +145,13 @@ private:
 template <class Handler>
 ServerImpl<Handler>::ServerImpl(
     Handler& handler,
-    boost::asio::io_service& io_service,
+    boost::asio::io_context& io_context,
     beast::Journal journal)
     : handler_(handler)
     , j_(journal)
-    , io_service_(io_service)
-    , strand_(io_service_)
-    , work_(io_service_)
+    , io_context_(io_context)
+    , strand_(boost::asio::make_strand(io_context_))
+    , work_(std::in_place, boost::asio::make_work_guard(io_context_))
 {
 }
 
@@ -179,7 +183,7 @@ ServerImpl<Handler>::ports(std::vector<Port> const& ports)
         {
             // UDP-RPC door
             if (auto sp = ios_.emplace<UDPDoor<Handler>>(
-                    handler_, io_service_, internalPort, j_))
+                    handler_, io_context_, internalPort, j_))
             {
                 auto ep = sp->get_endpoint();
                 if (!internalPort.port)
@@ -193,7 +197,7 @@ ServerImpl<Handler>::ports(std::vector<Port> const& ports)
         {
             // Standard TCP door
             if (auto sp = ios_.emplace<Door<Handler>>(
-                    handler_, io_service_, internalPort, j_))
+                    handler_, io_context_, internalPort, j_))
             {
                 list_.push_back(sp);
 
@@ -204,6 +208,16 @@ ServerImpl<Handler>::ports(std::vector<Port> const& ports)
 
                 sp->run();
             }
+
+            // UDP Superhighway (XUSH) datagrams arrive on the peer port
+            // number. TCP and UDP port numbers are independent, so this
+            // needs no socket sharing with the TCP door.
+            if (internalPort.has_peer() && internalPort.udp_highway)
+            {
+                if (auto sp = ios_.emplace<UDPDoor<Handler>>(
+                        handler_, io_context_, internalPort, j_))
+                    sp->run();
+            }
         }
     }
     return eps;

include/xrpl/server/detail/Spawn.h

@@ -0,0 +1,111 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright(c) 2025 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_SERVER_SPAWN_H_INCLUDED
+#define RIPPLE_SERVER_SPAWN_H_INCLUDED
+
+#include <xrpl/basics/Log.h>
+
+#include <boost/asio/spawn.hpp>
+#include <boost/asio/strand.hpp>
+
+#include <concepts>
+#include <type_traits>
+
+namespace ripple::util {
+namespace impl {
+
+template <typename T>
+concept IsStrand = std::same_as<
+    std::decay_t<T>,
+    boost::asio::strand<typename std::decay_t<T>::inner_executor_type>>;
+
+/**
+ * @brief A completion handler that restores `boost::asio::spawn`'s behaviour
+ * from Boost 1.83
+ *
+ * This is intended to be passed as the third argument to `boost::asio::spawn`
+ * so that exceptions are not ignored but propagated to `io_context.run()` call
+ * site.
+ *
+ * @param ePtr The exception that was caught on the coroutine
+ */
+inline constexpr auto kPROPAGATE_EXCEPTIONS = [](std::exception_ptr ePtr) {
+    if (ePtr)
+    {
+        try
+        {
+            std::rethrow_exception(ePtr);
+        }
+        catch (std::exception const& e)
+        {
+            JLOG(debugLog().warn()) << "Spawn exception: " << e.what();
+            throw;
+        }
+        catch (...)
+        {
+            JLOG(debugLog().warn()) << "Spawn exception: Unknown";
+            throw;
+        }
+    }
+};
+
+}  // namespace impl
+
+/**
+ * @brief Spawns a coroutine using `boost::asio::spawn`
+ *
+ * @note This uses kPROPAGATE_EXCEPTIONS to force asio to propagate exceptions
+ * through `io_context`
+ * @note Since implicit strand was removed from boost::asio::spawn this helper
+ * function adds the strand back
+ *
+ * @tparam Ctx The type of the context/strand
+ * @tparam F The type of the function to execute
+ * @param ctx The execution context
+ * @param func The function to execute. Must return `void`
+ */
+template <typename Ctx, typename F>
+    requires std::is_invocable_r_v<void, F, boost::asio::yield_context>
+void
+spawn(Ctx&& ctx, F&& func)
+{
+    if constexpr (impl::IsStrand<Ctx>)
+    {
+        boost::asio::spawn(
+            std::forward<Ctx>(ctx),
+            std::forward<F>(func),
+            impl::kPROPAGATE_EXCEPTIONS);
+    }
+    else
+    {
+        // make_strand accepts an executor or an execution context directly.
+        // Going through get_associated_executor here resolved a plain
+        // executor to asio's inline executor, which cannot be stranded and
+        // did not compile; nothing in the tree had instantiated this branch.
+        boost::asio::spawn(
+            boost::asio::make_strand(std::forward<Ctx>(ctx)),
+            std::forward<F>(func),
+            impl::kPROPAGATE_EXCEPTIONS);
+    }
+}
+
+}  // namespace ripple::util
+
+#endif

include/xrpl/server/detail/UDPDoor.h

@@ -78,10 +78,9 @@ public:
         error_code ec;
 
         // Create UDP endpoint from port configuration
-        auto const addr = port_.ip.to_v4();
-        boost::asio::ip::udp::endpoint udp_endpoint(addr, port_.port);
+        boost::asio::ip::udp::endpoint udp_endpoint(port_.ip, port_.port);
 
-        socket_.open(boost::asio::ip::udp::v4(), ec);
+        socket_.open(udp_endpoint.protocol(), ec);
         if (ec)
         {
             JLOG(j_.error()) << "UDP socket open failed: " << ec.message();
@@ -104,7 +103,7 @@ public:
             return;
         }
 
-        JLOG(j_.info()) << "UDP-RPC listening on " << udp_endpoint;
+        JLOG(j_.info()) << "UDP listening on " << udp_endpoint;
     }
 
     endpoint_type
@@ -169,6 +168,7 @@ private:
         handler_.onUDPMessage(
             std::string(recv_buffer_.data(), bytes_transferred),
             tcp_endpoint,
+            port_,
             [this, tcp_endpoint](std::string const& response) {
                 do_send(response, tcp_endpoint);
             });

include/xrpl/server/detail/io_list.h

@@ -166,7 +166,7 @@ public:
             May be called concurrently.
 
         Preconditions:
-            No call to io_service::run on any io_service
+            No call to io_context::run on any io_context
             used by work objects associated with this io_list
             exists in the caller's call stack.
     */

release-builder.sh

@@ -11,11 +11,11 @@ echo "START BUILDING (HOST)"
 echo "Cleaning previously built binary"
 rm -f release-build/xahaud
 
-BUILD_CORES=$(echo "scale=0 ; `nproc` / 1.337" | bc)
+BUILD_CORES=$(echo "scale=0 ; $(nproc) / 1.337" | bc)
 
 if [[ "$GITHUB_REPOSITORY" == "" ]]; then
   #Default
-  BUILD_CORES=${BUILD_CORES:-8} 
+  BUILD_CORES=${BUILD_CORES:-8}
 fi
 
 # Ensure still works outside of GH Actions by setting these to /dev/null
@@ -31,21 +31,19 @@ echo "-- GITHUB_SHA:        $GITHUB_SHA"
 echo "-- GITHUB_RUN_NUMBER: $GITHUB_RUN_NUMBER"
 echo "-- CONTAINER_NAME:    $CONTAINER_NAME"
 
-which docker 2> /dev/null 2> /dev/null
-if [ "$?" -eq "1" ]
-then
+which docker 2>/dev/null 2>/dev/null
+if [ "$?" -eq "1" ]; then
   echo 'Docker not found. Install it first.'
   exit 1
 fi
 
-stat .git 2> /dev/null 2> /dev/null
-if [ "$?" -eq "1" ]
-then
+stat .git 2>/dev/null 2>/dev/null
+if [ "$?" -eq "1" ]; then
   echo 'Run this inside the source directory. (.git dir not found).'
   exit 1
 fi
 
-STATIC_CONTAINER=$(docker ps -a | grep $CONTAINER_NAME |wc -l)
+STATIC_CONTAINER=$(docker ps -a | grep $CONTAINER_NAME | wc -l)
 
 CACHE_VOLUME_NAME="xahau-release-builder-cache"
 
@@ -57,13 +55,14 @@ if false; then
   docker stop $CONTAINER_NAME
 else
   echo "No static container, build on temp container"
-  rm -rf release-build;
-  mkdir -p release-build;
+  rm -rf release-build
+  mkdir -p release-build
 
   docker volume create $CACHE_VOLUME_NAME
 
   # Create inline Dockerfile with environment setup for build-full.sh
-  DOCKERFILE_CONTENT=$(cat <<'DOCKERFILE_EOF'
+  DOCKERFILE_CONTENT=$(
+    cat <<'DOCKERFILE_EOF'
 FROM ghcr.io/phusion/holy-build-box:4.0.1-amd64
 
 ARG BUILD_CORES=8
@@ -196,6 +195,7 @@ ENV PATH=/usr/local/bin:$PATH
 RUN /hbb_exe/activate-exec bash -c "ccache -M 100G && \
     ccache -o cache_dir=/cache/ccache && \
     ccache -o compiler_check=content && \
+    ccache -o direct_mode=true && \
     mkdir -p ~/.conan2 /cache/conan2 /cache/conan2_download /cache/conan2_sources && \
     echo 'core.cache:storage_path=/cache/conan2' > ~/.conan2/global.conf && \
     echo 'core.download:download_cache=/cache/conan2_download' >> ~/.conan2/global.conf && \
@@ -217,7 +217,7 @@ RUN /hbb_exe/activate-exec bash -c "ccache -M 100G && \
     ln -s ../../bin/ccache /usr/lib64/ccache/c++"
 
 DOCKERFILE_EOF
-)
+  )
 
   # Build custom Docker image
   IMAGE_NAME="xahaud-builder:latest"
@@ -227,14 +227,14 @@ DOCKERFILE_EOF
   if [[ "$GITHUB_REPOSITORY" == "" ]]; then
     # Non GH, local building
     echo "Non-GH runner, local building, temp container"
-    docker run -i --user 0:$(id -g) --rm -v /data/builds:/data/builds -v `pwd`:/io -v "$CACHE_VOLUME_NAME":/cache --network host "$IMAGE_NAME" /hbb_exe/activate-exec bash -c "source /opt/rh/gcc-toolset-11/enable && bash -x /io/build-full.sh '$GITHUB_REPOSITORY' '$GITHUB_SHA' '$BUILD_CORES' '$GITHUB_RUN_NUMBER'"
+    docker run -i --user 0:$(id -g) --rm -v /data/builds:/data/builds -v $(pwd):/io -v "$CACHE_VOLUME_NAME":/cache --network host "$IMAGE_NAME" /hbb_exe/activate-exec bash -c "source /opt/rh/gcc-toolset-11/enable && bash -x /io/build-full.sh '$GITHUB_REPOSITORY' '$GITHUB_SHA' '$BUILD_CORES' '$GITHUB_RUN_NUMBER'"
   else
     # GH Action, runner
     echo "GH Action, runner, clean & re-create create persistent container"
     docker rm -f $CONTAINER_NAME
-    echo "echo 'Stopping container: $CONTAINER_NAME'" >> "$JOB_CLEANUP_SCRIPT"
-    echo "docker stop --time=15 \"$CONTAINER_NAME\" || echo 'Failed to stop container or container not running'" >> "$JOB_CLEANUP_SCRIPT"
-    docker run -di --user 0:$(id -g) --name $CONTAINER_NAME -v /data/builds:/data/builds -v `pwd`:/io -v "$CACHE_VOLUME_NAME":/cache --network host "$IMAGE_NAME" /hbb_exe/activate-exec bash
+    echo "echo 'Stopping container: $CONTAINER_NAME'" >>"$JOB_CLEANUP_SCRIPT"
+    echo "docker stop --time=15 \"$CONTAINER_NAME\" || echo 'Failed to stop container or container not running'" >>"$JOB_CLEANUP_SCRIPT"
+    docker run -di --user 0:$(id -g) --name $CONTAINER_NAME -v /data/builds:/data/builds -v $(pwd):/io -v "$CACHE_VOLUME_NAME":/cache --network host "$IMAGE_NAME" /hbb_exe/activate-exec bash
     docker exec -i $CONTAINER_NAME /hbb_exe/activate-exec bash -c "source /opt/rh/gcc-toolset-11/enable && bash -x /io/build-full.sh '$GITHUB_REPOSITORY' '$GITHUB_SHA' '$BUILD_CORES' '$GITHUB_RUN_NUMBER'"
     docker stop $CONTAINER_NAME
   fi

src/libxrpl/basics/ResolverAsio.cpp

@@ -22,7 +22,14 @@
 #include <xrpl/beast/net/IPAddressConversion.h>
 #include <xrpl/beast/net/IPEndpoint.h>
 #include <xrpl/beast/utility/instrumentation.h>
-#include <boost/asio.hpp>
+
+#include <boost/asio/bind_executor.hpp>
+#include <boost/asio/error.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/system/detail/error_code.hpp>
+
+#include <algorithm>
 #include <atomic>
 #include <condition_variable>
 #include <deque>
@@ -110,8 +117,8 @@ public:
 
     beast::Journal m_journal;
 
-    boost::asio::io_service& m_io_service;
-    boost::asio::io_service::strand m_strand;
+    boost::asio::io_context& m_io_context;
+    boost::asio::strand<boost::asio::io_context::executor_type> m_strand;
     boost::asio::ip::tcp::resolver m_resolver;
 
     std::condition_variable m_cv;
@@ -141,12 +148,12 @@ public:
     std::deque<Work> m_work;
 
     ResolverAsioImpl(
-        boost::asio::io_service& io_service,
+        boost::asio::io_context& io_context,
         beast::Journal journal)
         : m_journal(journal)
-        , m_io_service(io_service)
-        , m_strand(io_service)
-        , m_resolver(io_service)
+        , m_io_context(io_context)
+        , m_strand(boost::asio::make_strand(io_context))
+        , m_resolver(io_context)
         , m_asyncHandlersCompleted(true)
         , m_stop_called(false)
         , m_stopped(true)
@@ -202,8 +209,14 @@ public:
     {
         if (m_stop_called.exchange(true) == false)
         {
-            m_io_service.dispatch(m_strand.wrap(std::bind(
-                &ResolverAsioImpl::do_stop, this, CompletionCounter(this))));
+            boost::asio::dispatch(
+                m_io_context,
+                boost::asio::bind_executor(
+                    m_strand,
+                    std::bind(
+                        &ResolverAsioImpl::do_stop,
+                        this,
+                        CompletionCounter(this))));
 
             JLOG(m_journal.debug()) << "Queued a stop request";
         }
@@ -234,12 +247,16 @@ public:
 
         // TODO NIKB use rvalue references to construct and move
         //           reducing cost.
-        m_io_service.dispatch(m_strand.wrap(std::bind(
-            &ResolverAsioImpl::do_resolve,
-            this,
-            names,
-            handler,
-            CompletionCounter(this))));
+        boost::asio::dispatch(
+            m_io_context,
+            boost::asio::bind_executor(
+                m_strand,
+                std::bind(
+                    &ResolverAsioImpl::do_resolve,
+                    this,
+                    names,
+                    handler,
+                    CompletionCounter(this))));
     }
 
     //-------------------------------------------------------------------------
@@ -265,19 +282,20 @@ public:
         std::string name,
         boost::system::error_code const& ec,
         HandlerType handler,
-        boost::asio::ip::tcp::resolver::iterator iter,
+        boost::asio::ip::tcp::resolver::results_type results,
         CompletionCounter)
     {
         if (ec == boost::asio::error::operation_aborted)
             return;
 
         std::vector<beast::IP::Endpoint> addresses;
+        auto iter = results.begin();
 
         // If we get an error message back, we don't return any
         // results that we may have gotten.
         if (!ec)
         {
-            while (iter != boost::asio::ip::tcp::resolver::iterator())
+            while (iter != results.end())
             {
                 addresses.push_back(
                     beast::IPAddressConversion::from_asio(*iter));
@@ -287,8 +305,14 @@ public:
 
         handler(name, addresses);
 
-        m_io_service.post(m_strand.wrap(std::bind(
-            &ResolverAsioImpl::do_work, this, CompletionCounter(this))));
+        boost::asio::post(
+            m_io_context,
+            boost::asio::bind_executor(
+                m_strand,
+                std::bind(
+                    &ResolverAsioImpl::do_work,
+                    this,
+                    CompletionCounter(this))));
     }
 
     HostAndPort
@@ -369,16 +393,21 @@ public:
         {
             JLOG(m_journal.error()) << "Unable to parse '" << name << "'";
 
-            m_io_service.post(m_strand.wrap(std::bind(
-                &ResolverAsioImpl::do_work, this, CompletionCounter(this))));
+            boost::asio::post(
+                m_io_context,
+                boost::asio::bind_executor(
+                    m_strand,
+                    std::bind(
+                        &ResolverAsioImpl::do_work,
+                        this,
+                        CompletionCounter(this))));
 
             return;
         }
 
-        boost::asio::ip::tcp::resolver::query query(host, port);
-
         m_resolver.async_resolve(
-            query,
+            host,
+            port,
             std::bind(
                 &ResolverAsioImpl::do_finish,
                 this,
@@ -409,10 +438,14 @@ public:
 
             if (m_work.size() > 0)
             {
-                m_io_service.post(m_strand.wrap(std::bind(
-                    &ResolverAsioImpl::do_work,
-                    this,
-                    CompletionCounter(this))));
+                boost::asio::post(
+                    m_io_context,
+                    boost::asio::bind_executor(
+                        m_strand,
+                        std::bind(
+                            &ResolverAsioImpl::do_work,
+                            this,
+                            CompletionCounter(this))));
             }
         }
     }
@@ -421,9 +454,9 @@ public:
 //-----------------------------------------------------------------------------
 
 std::unique_ptr<ResolverAsio>
-ResolverAsio::New(boost::asio::io_service& io_service, beast::Journal journal)
+ResolverAsio::New(boost::asio::io_context& io_context, beast::Journal journal)
 {
-    return std::make_unique<ResolverAsioImpl>(io_service, journal);
+    return std::make_unique<ResolverAsioImpl>(io_context, journal);
 }
 
 //-----------------------------------------------------------------------------

src/libxrpl/basics/UTF8.cpp

@@ -0,0 +1,101 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2025 XRPL Labs
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include <xrpl/basics/UTF8.h>
+
+namespace ripple {
+
+bool
+isValidUTF8(Slice const& s) noexcept
+{
+    std::size_t const size = s.size();
+
+    // Markus Kuhn's utf8_check.c
+    // (https://www.cl.cam.ac.uk/~mgk25/ucs/utf8_check.c), the decoder
+    // URIToken has always used, with one change: each branch establishes
+    // that the whole sequence is present before reading any continuation
+    // byte, so a truncated tail is invalid rather than an out-of-bounds read.
+    std::size_t i = 0;
+    while (i < size)
+    {
+        std::uint8_t const c0 = s[i];
+
+        if (c0 < 0x80)
+        {
+            // 0xxxxxxx
+            ++i;
+            continue;
+        }
+
+        if ((c0 & 0xE0) == 0xC0)
+        {
+            // 110xxxxx 10xxxxxx
+            if (size - i < 2)
+                return false;
+            if ((s[i + 1] & 0xC0) != 0x80)
+                return false;
+            if ((c0 & 0xFE) == 0xC0)  // overlong
+                return false;
+            i += 2;
+            continue;
+        }
+
+        if ((c0 & 0xF0) == 0xE0)
+        {
+            // 1110xxxx 10xxxxxx 10xxxxxx
+            if (size - i < 3)
+                return false;
+            std::uint8_t const c1 = s[i + 1];
+            if ((c1 & 0xC0) != 0x80 || (s[i + 2] & 0xC0) != 0x80)
+                return false;
+            if (c0 == 0xE0 && (c1 & 0xE0) == 0x80)  // overlong
+                return false;
+            if (c0 == 0xED && (c1 & 0xE0) == 0xA0)  // UTF-16 surrogate
+                return false;
+            if (c0 == 0xEF && c1 == 0xBF &&
+                (s[i + 2] & 0xFE) == 0xBE)  // U+FFFE or U+FFFF
+                return false;
+            i += 3;
+            continue;
+        }
+
+        if ((c0 & 0xF8) == 0xF0)
+        {
+            // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+            if (size - i < 4)
+                return false;
+            std::uint8_t const c1 = s[i + 1];
+            if ((c1 & 0xC0) != 0x80 || (s[i + 2] & 0xC0) != 0x80 ||
+                (s[i + 3] & 0xC0) != 0x80)
+                return false;
+            if (c0 == 0xF0 && (c1 & 0xF0) == 0x80)  // overlong
+                return false;
+            if (c0 > 0xF4 || (c0 == 0xF4 && c1 > 0x8F))  // > U+10FFFF
+                return false;
+            i += 4;
+            continue;
+        }
+
+        // Stray continuation byte or 0xF8..0xFF.
+        return false;
+    }
+    return true;
+}
+
+}  // namespace ripple

src/libxrpl/beast/insight/StatsDCollector.cpp

@@ -26,10 +26,24 @@
 #include <xrpl/beast/insight/StatsDCollector.h>
 #include <xrpl/beast/net/IPAddressConversion.h>
 #include <xrpl/beast/utility/instrumentation.h>
+
+#include <boost/asio/basic_waitable_timer.hpp>
+#include <boost/asio/bind_executor.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/error.hpp>
+#include <boost/asio/executor_work_guard.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/ip/udp.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/system/detail/error_code.hpp>
+
 #include <boost/asio/ip/tcp.hpp>
+#include <chrono>
 #include <climits>
+#include <cstddef>
 #include <deque>
 #include <functional>
+#include <iostream>
 #include <mutex>
 #include <optional>
 #include <set>
@@ -223,9 +237,11 @@ private:
     Journal m_journal;
     IP::Endpoint m_address;
     std::string m_prefix;
-    boost::asio::io_service m_io_service;
-    std::optional<boost::asio::io_service::work> m_work;
-    boost::asio::io_service::strand m_strand;
+    boost::asio::io_context m_io_context;
+    std::optional<boost::asio::executor_work_guard<
+        boost::asio::io_context::executor_type>>
+        m_work;
+    boost::asio::strand<boost::asio::io_context::executor_type> m_strand;
     boost::asio::basic_waitable_timer<std::chrono::steady_clock> m_timer;
     boost::asio::ip::udp::socket m_socket;
     std::deque<std::string> m_data;
@@ -249,18 +265,24 @@ public:
         : m_journal(journal)
         , m_address(address)
         , m_prefix(prefix)
-        , m_work(std::ref(m_io_service))
-        , m_strand(m_io_service)
-        , m_timer(m_io_service)
-        , m_socket(m_io_service)
+        , m_work(boost::asio::make_work_guard(m_io_context))
+        , m_strand(boost::asio::make_strand(m_io_context))
+        , m_timer(m_io_context)
+        , m_socket(m_io_context)
         , m_thread(&StatsDCollectorImp::run, this)
     {
     }
 
     ~StatsDCollectorImp() override
     {
-        boost::system::error_code ec;
-        m_timer.cancel(ec);
+        try
+        {
+            m_timer.cancel();
+        }
+        catch (boost::system::system_error const&)
+        {
+            // ignored
+        }
 
         m_work.reset();
         m_thread.join();
@@ -319,10 +341,10 @@ public:
 
     //--------------------------------------------------------------------------
 
-    boost::asio::io_service&
-    get_io_service()
+    boost::asio::io_context&
+    get_io_context()
     {
-        return m_io_service;
+        return m_io_context;
     }
 
     std::string const&
@@ -340,8 +362,14 @@ public:
     void
     post_buffer(std::string&& buffer)
     {
-        m_io_service.dispatch(m_strand.wrap(std::bind(
-            &StatsDCollectorImp::do_post_buffer, this, std::move(buffer))));
+        boost::asio::dispatch(
+            m_io_context,
+            boost::asio::bind_executor(
+                m_strand,
+                std::bind(
+                    &StatsDCollectorImp::do_post_buffer,
+                    this,
+                    std::move(buffer))));
     }
 
     // The keepAlive parameter makes sure the buffers sent to
@@ -371,7 +399,7 @@ public:
         for (auto const& buffer : buffers)
         {
             std::string const s(
-                boost::asio::buffer_cast<char const*>(buffer),
+                static_cast<char const*>(buffer.data()),
                 boost::asio::buffer_size(buffer));
             std::cerr << s;
         }
@@ -441,7 +469,7 @@ public:
     set_timer()
     {
         using namespace std::chrono_literals;
-        m_timer.expires_from_now(1s);
+        m_timer.expires_after(1s);
         m_timer.async_wait(std::bind(
             &StatsDCollectorImp::on_timer, this, std::placeholders::_1));
     }
@@ -483,13 +511,13 @@ public:
 
         set_timer();
 
-        m_io_service.run();
+        m_io_context.run();
 
         m_socket.shutdown(boost::asio::ip::udp::socket::shutdown_send, ec);
 
         m_socket.close();
 
-        m_io_service.poll();
+        m_io_context.poll();
     }
 };
 
@@ -532,10 +560,12 @@ StatsDCounterImpl::~StatsDCounterImpl()
 void
 StatsDCounterImpl::increment(CounterImpl::value_type amount)
 {
-    m_impl->get_io_service().dispatch(std::bind(
-        &StatsDCounterImpl::do_increment,
-        std::static_pointer_cast<StatsDCounterImpl>(shared_from_this()),
-        amount));
+    boost::asio::dispatch(
+        m_impl->get_io_context(),
+        std::bind(
+            &StatsDCounterImpl::do_increment,
+            std::static_pointer_cast<StatsDCounterImpl>(shared_from_this()),
+            amount));
 }
 
 void
@@ -577,10 +607,12 @@ StatsDEventImpl::StatsDEventImpl(
 void
 StatsDEventImpl::notify(EventImpl::value_type const& value)
 {
-    m_impl->get_io_service().dispatch(std::bind(
-        &StatsDEventImpl::do_notify,
-        std::static_pointer_cast<StatsDEventImpl>(shared_from_this()),
-        value));
+    boost::asio::dispatch(
+        m_impl->get_io_context(),
+        std::bind(
+            &StatsDEventImpl::do_notify,
+            std::static_pointer_cast<StatsDEventImpl>(shared_from_this()),
+            value));
 }
 
 void
@@ -610,19 +642,23 @@ StatsDGaugeImpl::~StatsDGaugeImpl()
 void
 StatsDGaugeImpl::set(GaugeImpl::value_type value)
 {
-    m_impl->get_io_service().dispatch(std::bind(
-        &StatsDGaugeImpl::do_set,
-        std::static_pointer_cast<StatsDGaugeImpl>(shared_from_this()),
-        value));
+    boost::asio::dispatch(
+        m_impl->get_io_context(),
+        std::bind(
+            &StatsDGaugeImpl::do_set,
+            std::static_pointer_cast<StatsDGaugeImpl>(shared_from_this()),
+            value));
 }
 
 void
 StatsDGaugeImpl::increment(GaugeImpl::difference_type amount)
 {
-    m_impl->get_io_service().dispatch(std::bind(
-        &StatsDGaugeImpl::do_increment,
-        std::static_pointer_cast<StatsDGaugeImpl>(shared_from_this()),
-        amount));
+    boost::asio::dispatch(
+        m_impl->get_io_context(),
+        std::bind(
+            &StatsDGaugeImpl::do_increment,
+            std::static_pointer_cast<StatsDGaugeImpl>(shared_from_this()),
+            amount));
 }
 
 void
@@ -698,10 +734,12 @@ StatsDMeterImpl::~StatsDMeterImpl()
 void
 StatsDMeterImpl::increment(MeterImpl::value_type amount)
 {
-    m_impl->get_io_service().dispatch(std::bind(
-        &StatsDMeterImpl::do_increment,
-        std::static_pointer_cast<StatsDMeterImpl>(shared_from_this()),
-        amount));
+    boost::asio::dispatch(
+        m_impl->get_io_context(),
+        std::bind(
+            &StatsDMeterImpl::do_increment,
+            std::static_pointer_cast<StatsDMeterImpl>(shared_from_this()),
+            amount));
 }
 
 void

src/libxrpl/beast/net/IPAddressV4.cpp

@@ -28,11 +28,11 @@ namespace IP {
 bool
 is_private(AddressV4 const& addr)
 {
-    return ((addr.to_ulong() & 0xff000000) ==
+    return ((addr.to_uint() & 0xff000000) ==
             0x0a000000) ||  // Prefix /8,    10.  #.#.#
-        ((addr.to_ulong() & 0xfff00000) ==
+        ((addr.to_uint() & 0xfff00000) ==
          0xac100000) ||  // Prefix /12   172. 16.#.# - 172.31.#.#
-        ((addr.to_ulong() & 0xffff0000) ==
+        ((addr.to_uint() & 0xffff0000) ==
          0xc0a80000) ||  // Prefix /16   192.168.#.#
         addr.is_loopback();
 }
@@ -47,7 +47,7 @@ char
 get_class(AddressV4 const& addr)
 {
     static char const* table = "AAAABBCD";
-    return table[(addr.to_ulong() & 0xE0000000) >> 29];
+    return table[(addr.to_uint() & 0xE0000000) >> 29];
 }
 
 }  // namespace IP

src/libxrpl/beast/net/IPAddressV6.cpp

@@ -20,6 +20,8 @@
 #include <xrpl/beast/net/IPAddressV4.h>
 #include <xrpl/beast/net/IPAddressV6.h>
 
+#include <boost/asio/ip/address_v4.hpp>
+
 namespace beast {
 namespace IP {
 
@@ -28,7 +30,9 @@ is_private(AddressV6 const& addr)
 {
     return (
         (addr.to_bytes()[0] & 0xfd) ||  // TODO  fc00::/8 too ?
-        (addr.is_v4_mapped() && is_private(addr.to_v4())));
+        (addr.is_v4_mapped() &&
+         is_private(boost::asio::ip::make_address_v4(
+             boost::asio::ip::v4_mapped, addr))));
 }
 
 bool

src/libxrpl/beast/net/IPEndpoint.cpp

@@ -18,7 +18,19 @@
 //==============================================================================
 
 #include <xrpl/beast/net/IPEndpoint.h>
+
+#include <boost/algorithm/string/trim.hpp>
+#include <boost/asio/ip/address.hpp>
+#include <boost/asio/ip/address_v4.hpp>
+#include <boost/system/detail/error_code.hpp>
+
 #include <boost/algorithm/string.hpp>
+#include <cctype>
+#include <ios>
+#include <istream>
+#include <optional>
+#include <sstream>
+#include <string>
 
 namespace beast {
 namespace IP {
@@ -157,7 +169,7 @@ operator>>(std::istream& is, Endpoint& endpoint)
     }
 
     boost::system::error_code ec;
-    auto addr = Address::from_string(addrStr, ec);
+    auto addr = boost::asio::ip::make_address(addrStr, ec);
     if (ec)
     {
         is.setstate(std::ios_base::failbit);

src/libxrpl/protocol/AMMCore.cpp

@@ -66,7 +66,7 @@ invalidAMMAsset(
     Issue const& issue,
     std::optional<std::pair<Issue, Issue>> const& pair)
 {
-    if (badCurrency() == issue.currency)
+    if (isBadCurrency(issue.currency))
         return temBAD_CURRENCY;
     if (isXRP(issue) && issue.account.isNonZero())
         return temBAD_ISSUER;

src/libxrpl/protocol/BuildInfo.cpp

@@ -56,9 +56,9 @@ getVersionString()
         (versionString == std::string("0.") + std::string("0.0") ||
          versionString == std::string("0.0.0+DEBUG")))
     {
-        std::string y = std::string(__DATE__ + 7);
+        std::string y = std::string(&__DATE__[7]);
         std::string d = std::string(
-            __DATE__ + 4 + (__DATE__[4] == ' ' ? 1 : 0),
+            &__DATE__[4 + (__DATE__[4] == ' ' ? 1 : 0)],
             __DATE__[4] == ' ' ? 1 : 2);
         std::string m;
         switch (__DATE__[0])

src/libxrpl/protocol/Feature.cpp

@@ -250,12 +250,9 @@ FeatureCollections::registerFeature(
     Feature const* i = getByName(name);
     if (!i)
     {
-        // If this check fails, and you just added a feature, increase the
-        // numFeatures value in Feature.h
         check(
             features.size() < detail::numFeatures,
-            "More features defined than allocated. Adjust numFeatures in "
-            "Feature.h.");
+            "More features defined than allocated.");
 
         auto const f = sha512Half(Slice(name.data(), name.size()));
 
@@ -424,45 +421,26 @@ featureToName(uint256 const& f)
 #undef XRPL_FEATURE
 #pragma push_macro("XRPL_FIX")
 #undef XRPL_FIX
+#pragma push_macro("XRPL_RETIRE")
+#undef XRPL_RETIRE
 
 #define XRPL_FEATURE(name, supported, vote) \
     uint256 const feature##name = registerFeature(#name, supported, vote);
 #define XRPL_FIX(name, supported, vote) \
     uint256 const fix##name = registerFeature("fix" #name, supported, vote);
+#define XRPL_RETIRE(name)                                                     \
+    [[deprecated("The referenced amendment has been retired"), maybe_unused]] \
+    uint256 const retired##name = retireFeature(#name);
 
 #include <xrpl/protocol/detail/features.macro>
 
+#undef XRPL_RETIRE
+#pragma pop_macro("XRPL_RETIRE")
 #undef XRPL_FIX
 #pragma pop_macro("XRPL_FIX")
 #undef XRPL_FEATURE
 #pragma pop_macro("XRPL_FEATURE")
 
-// clang-format off
-
-// The following amendments have been active for at least two years. Their
-// pre-amendment code has been removed and the identifiers are deprecated.
-// All known amendments and amendments that may appear in a validated
-// ledger must be registered either here or above with the "active" amendments
-[[deprecated("The referenced amendment has been retired"), maybe_unused]]
-uint256 const
-    retiredMultiSign         = retireFeature("MultiSign"),
-    retiredTrustSetAuth      = retireFeature("TrustSetAuth"),
-    retiredFeeEscalation     = retireFeature("FeeEscalation"),
-    retiredPayChan           = retireFeature("PayChan"),
-    retiredCryptoConditions  = retireFeature("CryptoConditions"),
-    retiredTickSize          = retireFeature("TickSize"),
-    retiredFix1368           = retireFeature("fix1368"),
-    retiredEscrow            = retireFeature("Escrow"),
-    retiredFix1373           = retireFeature("fix1373"),
-    retiredEnforceInvariants = retireFeature("EnforceInvariants"),
-    retiredSortedDirectories = retireFeature("SortedDirectories"),
-    retiredFix1201           = retireFeature("fix1201"),
-    retiredFix1512           = retireFeature("fix1512"),
-    retiredFix1523           = retireFeature("fix1523"),
-    retiredFix1528           = retireFeature("fix1528");
-
-// clang-format on
-
 // All of the features should now be registered, since variables in a cpp file
 // are initialized from top to bottom.
 //

src/libxrpl/protocol/Indexes.cpp

@@ -31,6 +31,8 @@
 
 namespace ripple {
 
+#define LEDGER_NAMESPACE2(value1, value2) (uint16_t(value1) << 8) | value2
+
 /** Type-specific prefix for calculating ledger indices.
 
     The identifier for a given object within the ledger is calculated based
@@ -80,14 +82,15 @@ enum class LedgerNameSpace : std::uint16_t {
     UNL_REPORT = 'R',
     CRON = 'L',
     AMM = 'A',
-    BRIDGE = 'H',
+    BRIDGE = LEDGER_NAMESPACE2(0x01, 'H'),
     XCHAIN_CLAIM_ID = 'Q',
     XCHAIN_CREATE_ACCOUNT_CLAIM_ID = 'K',
-    DID = 'I',
-    ORACLE = 'R',
+    DID = LEDGER_NAMESPACE2(0x01, 'I'),
+    ORACLE = LEDGER_NAMESPACE2(0x01, 'R'),
     MPTOKEN_ISSUANCE = '~',
     MPTOKEN = 't',
-    CREDENTIAL = 'D',
+    MANIFEST = 'M',
+    CREDENTIAL = LEDGER_NAMESPACE2(0x01, 'D'),
     PERMISSIONED_DOMAIN = 'm',
 
     // No longer used or supported. Left here to reserve the space
@@ -668,6 +671,12 @@ permissionedDomain(uint256 const& domainID) noexcept
     return {ltPERMISSIONED_DOMAIN, domainID};
 }
 
+Keylet
+manifest(PublicKey const& pk) noexcept
+{
+    return {ltMANIFEST, indexHash(LedgerNameSpace::MANIFEST, pk.slice())};
+}
+
 }  // namespace keylet
 
 }  // namespace ripple

src/libxrpl/protocol/InnerObjectFormats.cpp

@@ -87,19 +87,6 @@ InnerObjectFormats::InnerObjectFormats()
          {sfEmittedTxnID, soeREQUIRED},
          {sfEmitNonce, soeOPTIONAL}});
 
-    add(sfHookDefinition.jsonName,
-        sfHookDefinition.getCode(),
-        {{sfCreateCode, soeREQUIRED},
-         {sfHookNamespace, soeREQUIRED},
-         {sfHookParameters, soeREQUIRED},
-         {sfHookOn, soeOPTIONAL},
-         {sfHookOnIncoming, soeOPTIONAL},
-         {sfHookOnOutgoing, soeOPTIONAL},
-         {sfHookCanEmit, soeOPTIONAL},
-         {sfHookApiVersion, soeREQUIRED},
-         {sfFlags, soeREQUIRED},
-         {sfFee, soeREQUIRED}});
-
     add(sfHook.jsonName,
         sfHook.getCode(),
         {{sfHookHash, soeOPTIONAL},
@@ -112,6 +99,7 @@ InnerObjectFormats::InnerObjectFormats()
          {sfHookOnOutgoing, soeOPTIONAL},
          {sfHookCanEmit, soeOPTIONAL},
          {sfHookApiVersion, soeOPTIONAL},
+         {sfHookName, soeOPTIONAL},
          {sfFlags, soeOPTIONAL}});
 
     add(sfHookGrant.jsonName,
@@ -266,6 +254,24 @@ InnerObjectFormats::InnerObjectFormats()
             {sfIssuer, soeREQUIRED},
             {sfCredentialType, soeREQUIRED},
         });
+
+    add(sfHighReward.jsonName,
+        sfHighReward.getCode(),
+        {
+            {sfRewardLgrFirst, soeREQUIRED},
+            {sfRewardLgrLast, soeREQUIRED},
+            {sfRewardTime, soeREQUIRED},
+            {sfTrustLineRewardAccumulator, soeREQUIRED},
+        });
+
+    add(sfLowReward.jsonName,
+        sfLowReward.getCode(),
+        {
+            {sfRewardLgrFirst, soeREQUIRED},
+            {sfRewardLgrLast, soeREQUIRED},
+            {sfRewardTime, soeREQUIRED},
+            {sfTrustLineRewardAccumulator, soeREQUIRED},
+        });
 }
 
 InnerObjectFormats const&

src/libxrpl/protocol/Issue.cpp

@@ -111,7 +111,7 @@ issueFromJson(Json::Value const& v)
     }
 
     auto const currency = to_currency(curStr.asString());
-    if (currency == badCurrency() || currency == noCurrency())
+    if (isBadCurrency(currency) || currency == noCurrency())
     {
         Throw<Json::error>("issueFromJson currency must be a valid currency");
     }

src/libxrpl/protocol/Rules.cpp

@@ -153,4 +153,12 @@ Rules::operator!=(Rules const& other) const
 {
     return !(*this == other);
 }
+
+bool
+isFeatureEnabled(uint256 const& feature)
+{
+    auto const& rules = getCurrentTransactionRules();
+    return rules && rules->enabled(feature);
+}
+
 }  // namespace ripple

src/libxrpl/protocol/STCurrency.cpp

@@ -103,7 +103,7 @@ currencyFromJson(SField const& name, Json::Value const& v)
     }
 
     auto const currency = to_currency(v.asString());
-    if (currency == badCurrency() || currency == noCurrency())
+    if (isBadCurrency(currency) || currency == noCurrency())
     {
         Throw<std::runtime_error>(
             "currencyFromJson currency must be a valid currency");

src/libxrpl/protocol/TER.cpp

@@ -151,6 +151,8 @@ transResults()
         MAKE_ERROR(tefNONDIR_EMIT,                 "An emitted txn was injected into the ledger without a corresponding directory entry."),
         MAKE_ERROR(tefIMPORT_BLACKHOLED,           "Cannot import keying because target account is blackholed."),
         MAKE_ERROR(tefINVALID_LEDGER_FIX_TYPE,     "The LedgerFixType field has an invalid value."),
+        MAKE_ERROR(tefPAST_MANIFEST_SEQ,           "The submitted manifest's sequence is not newer than the current."),
+        MAKE_ERROR(tefREVOKED_MANIFEST,            "The submitted manifest is for a revoked master key."),
 
         MAKE_ERROR(telLOCAL_ERROR,            "Local failure."),
         MAKE_ERROR(telBAD_DOMAIN,             "Domain too long."),
@@ -172,6 +174,7 @@ transResults()
         MAKE_ERROR(telIMPORT_VL_KEY_NOT_RECOGNISED, "Import vl key was not recognized."),
         MAKE_ERROR(telCAN_NOT_QUEUE_IMPORT,   "Import transaction was not able to be directly applied and cannot be queued."),
         MAKE_ERROR(telENV_RPC_FAILED,         "Unit test RPC failure."),
+        MAKE_ERROR(telMANIFEST_FEE_MISMATCH,  "Unsigned SetManifest fee is not, or cannot be confirmed as, canonical for this server's ledger fee settings."),
 
         MAKE_ERROR(temMALFORMED,                 "Malformed transaction."),
         MAKE_ERROR(temBAD_AMM_TOKENS,            "Malformed: Invalid LPTokens."),

src/libxrpl/protocol/TxFormats.cpp

@@ -48,6 +48,7 @@ TxFormats::TxFormats()
         {sfFirstLedgerSequence, soeOPTIONAL},
         {sfNetworkID, soeOPTIONAL},
         {sfHookParameters, soeOPTIONAL},
+        {sfHookName, soeOPTIONAL},
     };
 
 #pragma push_macro("UNWRAP")