test(rendezvous): error cases (#1683)

Co-authored-by: Ben <benph@vac.dev>
Co-authored-by: vladopajic <vladopajic@users.noreply.github.com>

.appveyor.yml

@@ -1,52 +0,0 @@
-version: '{build}'
-
-image: Visual Studio 2015
-
-cache:
-  - NimBinaries
-  - p2pdCache
-
-matrix:
-  # We always want 32 and 64-bit compilation
-  fast_finish: false
-
-platform:
-  - x86
-  - x64
-
-# when multiple CI builds are queued, the tested commit needs to be in the last X commits cloned with "--depth X"
-clone_depth: 10
-
-install:
-  - git submodule update --init --recursive
-
-  # use the newest versions documented here: https://www.appveyor.com/docs/windows-images-software/#mingw-msys-cygwin
-  - IF "%PLATFORM%" == "x86" SET PATH=C:\mingw-w64\i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32\bin;%PATH%
-  - IF "%PLATFORM%" == "x64" SET PATH=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;%PATH%
-
-  # build nim from our own branch - this to avoid the day-to-day churn and
-  # regressions of the fast-paced Nim development while maintaining the
-  # flexibility to apply patches
-  - curl -O -L -s -S https://raw.githubusercontent.com/status-im/nimbus-build-system/master/scripts/build_nim.sh
-  - env MAKE="mingw32-make -j2" ARCH_OVERRIDE=%PLATFORM% bash build_nim.sh Nim csources dist/nimble NimBinaries
-  - SET PATH=%CD%\Nim\bin;%PATH%
-
-  # set path for produced Go binaries
-  - MKDIR goblin
-  - CD goblin
-  - SET GOPATH=%CD%
-  - SET PATH=%GOPATH%\bin;%PATH%
-  - CD ..
-
-  # install and build go-libp2p-daemon
-  - bash scripts/build_p2pd.sh p2pdCache v0.3.0
-
-build_script:
-  - nimble install -y --depsOnly
-
-test_script:
-  - nimble test
-  - nimble examples_build
-
-deploy: off
-

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @vacp2p/p2p

.github/actions/add_comment/action.yml

@@ -0,0 +1,34 @@
+name: Add Comment
+description: "Add or update comment in the PR"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Add/Update Comment
+      uses: actions/github-script@v7
+      with:
+        script: |
+          const fs = require('fs');
+          const marker = "${{ env.MARKER }}";
+          const body = fs.readFileSync("${{ env.COMMENT_SUMMARY_PATH }}", 'utf8');
+          const { data: comments } = await github.rest.issues.listComments({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            issue_number: context.issue.number,
+          });
+          const existing = comments.find(c => c.body && c.body.startsWith(marker));
+          if (existing) {
+            await github.rest.issues.updateComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              comment_id: existing.id,
+              body,
+            });
+          } else {
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body,
+            });
+          }

.github/actions/discord_notify/action.yml

@@ -0,0 +1,49 @@
+name: Discord Failure Notification
+description: "Send Discord notification when CI jobs fail"
+inputs:
+  webhook_url:
+    description: "Discord webhook URL"
+    required: true
+  workflow_name:
+    description: "Name of the workflow that failed"
+    required: false
+    default: ${{ github.workflow }}
+  branch:
+    description: "Branch name"
+    required: false
+    default: ${{ github.ref_name }}
+  repository:
+    description: "Repository name"
+    required: false
+    default: ${{ github.repository }}
+  run_id:
+    description: "GitHub run ID"
+    required: false
+    default: ${{ github.run_id }}
+  server_url:
+    description: "GitHub server URL"
+    required: false
+    default: ${{ github.server_url }}
+
+runs:
+  using: "composite"
+  steps:
+    - name: Send Discord notification
+      shell: bash
+      run: |
+        curl -H "Content-Type: application/json" \
+             -X POST \
+             -d "{
+               \"embeds\": [{
+                 \"title\": \"${{ inputs.workflow_name }} Job Failed\",
+                 \"url\": \"${{ inputs.server_url }}/${{ inputs.repository }}/actions/runs/${{ inputs.run_id }}\",
+                 \"description\": \"The workflow has failed on branch \`${{ inputs.branch }}\`\",
+                 \"color\": 15158332,
+                 \"fields\": [
+                   {\"name\": \"Repository\", \"value\": \"${{ inputs.repository }}\", \"inline\": true},
+                   {\"name\": \"Branch\", \"value\": \"${{ inputs.branch }}\", \"inline\": true}
+                 ],
+                 \"timestamp\": \"$(date -u +%Y-%m-%dT%H:%M:%S.000Z)\"
+               }]
+             }" \
+             "${{ inputs.webhook_url }}"

.github/actions/generate_plots/action.yml

@@ -0,0 +1,24 @@
+name: Generate Plots
+description: "Set up Python and run script to generate plots with Docker Stats"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.12"
+
+    - name: Install Python dependencies
+      shell: bash
+      run: |
+        python -m pip install --upgrade pip
+        pip install matplotlib
+
+    - name: Plot Docker Stats
+      shell: bash
+      run: python performance/scripts/plot_docker_stats.py
+
+    - name: Plot Latency History
+      shell: bash
+      run: python performance/scripts/plot_latency_history.py

.github/actions/install_nim/action.yml

@@ -6,9 +6,9 @@ inputs:
   cpu:
     description: "CPU to build for"
     default: "amd64"
-  nim_branch:
+  nim_ref:
     description: "Nim version"
-    default: "version-1-6"
+    default: "version-2-0"
   shell:
     description: "Shell to run commands in"
     default: "bash --noprofile --norc -e -o pipefail"
@@ -61,7 +61,7 @@ runs:
     - name: Restore Nim DLLs dependencies (Windows) from cache
       if: inputs.os == 'Windows'
       id: windows-dlls-cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: external/dlls
         key: 'dlls'
@@ -88,6 +88,8 @@ runs:
       run: |
         if [[ '${{ inputs.cpu }}' == 'amd64' ]]; then
           PLATFORM=x64
+        elif [[ '${{ inputs.cpu }}' == 'arm64' ]]; then
+          PLATFORM=arm64
         else
           PLATFORM=x86
         fi
@@ -114,10 +116,10 @@ runs:
 
     - name: Restore Nim from cache
       id: nim-cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: '${{ github.workspace }}/nim'
-        key: ${{ inputs.os }}-${{ inputs.cpu }}-nim-${{ inputs.nim_branch }}-cache-${{ env.cache_nonce }}
+        key: ${{ inputs.os }}-${{ inputs.cpu }}-nim-${{ inputs.nim_ref }}-cache-${{ env.cache_nonce }}
 
     - name: Build Nim and Nimble
       shell: ${{ inputs.shell }}
@@ -126,6 +128,6 @@ runs:
         # We don't want partial matches of the cache restored
         rm -rf nim
         curl -O -L -s -S https://raw.githubusercontent.com/status-im/nimbus-build-system/master/scripts/build_nim.sh
-        env MAKE="${MAKE_CMD} -j${ncpu}" ARCH_OVERRIDE=${PLATFORM} NIM_COMMIT=${{ inputs.nim_branch }} \
+        env MAKE="${MAKE_CMD} -j${ncpu}" ARCH_OVERRIDE=${PLATFORM} NIM_COMMIT=${{ inputs.nim_ref }} \
           QUICK_AND_DIRTY_COMPILER=1 QUICK_AND_DIRTY_NIMBLE=1 CC=gcc \
           bash build_nim.sh nim csources dist/nimble NimBinaries

.github/actions/process_stats/action.yml

@@ -0,0 +1,21 @@
+name: Process Stats
+description: "Set up Nim and run scripts to aggregate latency and process raw docker stats"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Set up Nim
+      uses: jiro4989/setup-nim-action@v2
+      with:
+        nim-version: "2.x"
+        repo-token: ${{ env.GITHUB_TOKEN }}
+
+    - name: Aggregate latency stats and prepare markdown for comment and summary 
+      shell: bash
+      run: |
+        nim c -r -d:release -o:/tmp/process_latency_stats ./performance/scripts/process_latency_stats.nim
+
+    - name: Process raw docker stats to csv files
+      shell: bash
+      run: |
+        nim c -r -d:release -o:/tmp/process_docker_stats ./performance/scripts/process_docker_stats.nim

.github/actions/publish_history/action.yml

@@ -0,0 +1,36 @@
+name: Publish Latency History
+description: "Publish latency history CSVs in a configurable branch and folder"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Clone the branch
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ github.repository }}
+        ref: ${{ env.PUBLISH_BRANCH_NAME }}
+        path: ${{ env.CHECKOUT_SUBFOLDER_HISTORY }}
+        fetch-depth: 0
+
+    - name: Commit & push latency history CSVs
+      shell: bash
+      run: |
+        cd "$CHECKOUT_SUBFOLDER_HISTORY"
+        git fetch origin "$PUBLISH_BRANCH_NAME"
+        git reset --hard "origin/$PUBLISH_BRANCH_NAME"
+
+        mkdir -p "$PUBLISH_DIR_LATENCY_HISTORY"
+
+        cp ../$SHARED_VOLUME_PATH/$LATENCY_HISTORY_PREFIX*.csv "$PUBLISH_DIR_LATENCY_HISTORY/"
+        git add "$PUBLISH_DIR_LATENCY_HISTORY"
+
+        if git diff-index --quiet HEAD --; then
+          echo "No changes to commit"
+        else
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git config user.name "github-actions[bot]"
+          git commit -m "Update latency history CSVs"
+          git push origin "$PUBLISH_BRANCH_NAME"
+        fi
+
+        cd ..

.github/actions/publish_plots/action.yml

@@ -0,0 +1,56 @@
+name: Publish Plots
+description: "Publish plots in performance_plots branch and add to the workflow summary"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Clone the performance_plots branch
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ github.repository }}
+        ref: ${{ env.PUBLISH_BRANCH_NAME }}
+        path: ${{ env.CHECKOUT_SUBFOLDER_SUBPLOTS }}
+        fetch-depth: 0
+
+    - name: Commit & push plots
+      shell: bash
+      run: |
+        cd $CHECKOUT_SUBFOLDER_SUBPLOTS
+        git fetch origin "$PUBLISH_BRANCH_NAME"
+        git reset --hard "origin/$PUBLISH_BRANCH_NAME"
+
+        # Remove any branch folder older than 7 days
+        DAYS=7
+        cutoff=$(( $(date +%s) - DAYS*24*3600 ))
+        scan_dir="${PUBLISH_DIR_PLOTS%/}"
+        find "$scan_dir" -mindepth 1 -maxdepth 1 -type d -print0 \
+          | while IFS= read -r -d $'\0' d; do \
+              ts=$(git log -1 --format=%ct -- "$d" 2>/dev/null || true); \
+              if [ -n "$ts" ] && [ "$ts" -le "$cutoff" ]; then \
+                echo "[cleanup] Deleting: $d"; \
+                rm -rf -- "$d"; \
+              fi; \
+            done
+
+        rm -rf $PUBLISH_DIR_PLOTS/$BRANCH_NAME
+        mkdir -p $PUBLISH_DIR_PLOTS/$BRANCH_NAME
+
+        cp ../$SHARED_VOLUME_PATH/*.png $PUBLISH_DIR_PLOTS/$BRANCH_NAME/ 2>/dev/null || true
+        cp ../$LATENCY_HISTORY_PATH/*.png $PUBLISH_DIR_PLOTS/ 2>/dev/null || true
+        git add -A "$PUBLISH_DIR_PLOTS/"
+
+        git status
+
+        if git diff-index --quiet HEAD --; then
+          echo "No changes to commit"
+        else
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git config user.name "github-actions[bot]"
+          git commit -m "Update performance plots for $BRANCH_NAME"
+          git push origin $PUBLISH_BRANCH_NAME
+        fi
+
+    - name: Add plots to GitHub Actions summary
+      shell: bash
+      run: |
+        nim c -r -d:release -o:/tmp/add_plots_to_summary ./performance/scripts/add_plots_to_summary.nim

.github/workflows/auto_assign_pr.yml

@@ -0,0 +1,12 @@
+name: Auto Assign PR to Creator
+
+on:
+  pull_request:
+    types:
+      - opened
+
+jobs:
+  assign_creator:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: toshimaru/auto-author-assign@v1.6.2

.github/workflows/bumper.yml

@@ -1,44 +0,0 @@
-name: Bumper
-on:
-  push:
-    branches:
-      - master
-  workflow_dispatch:
-
-jobs:
-  bumpProjects:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        target: [
-          { repo: status-im/nimbus-eth2, branch: unstable },
-          { repo: waku-org/nwaku, branch: master },
-          { repo: codex-storage/nim-codex, branch: master }
-        ]
-    steps:
-      - name: Clone repo
-        uses: actions/checkout@v2
-        with:
-          repository: ${{ matrix.target.repo }}
-          ref: ${{ matrix.target.branch }}
-          path: nbc
-          fetch-depth: 0
-          token:  ${{ secrets.ACTIONS_GITHUB_TOKEN }}
-
-      - name: Checkout this ref
-        run: |
-          cd nbc
-          git submodule update --init vendor/nim-libp2p
-          cd vendor/nim-libp2p
-          git checkout $GITHUB_SHA
-
-      - name: Commit this bump
-        run: |
-          cd nbc
-          git config --global user.email "${{ github.actor }}@users.noreply.github.com"
-          git config --global user.name = "${{ github.actor }}"
-          git commit --allow-empty -a -m "auto-bump nim-libp2p"
-          git branch -D nim-libp2p-auto-bump-${GITHUB_REF##*/} || true
-          git switch -c nim-libp2p-auto-bump-${GITHUB_REF##*/}
-          git push -f origin nim-libp2p-auto-bump-${GITHUB_REF##*/}

.github/workflows/ci.yml

@@ -1,10 +1,11 @@
-name: CI
+name: Continuous Integration
+
 on:
   push:
     branches:
       - master
-      - unstable
   pull_request:
+  merge_group:
   workflow_dispatch:
 
 concurrency:
@@ -12,103 +13,93 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
-    timeout-minutes: 90
+  test:
+    timeout-minutes: 40
     strategy:
       fail-fast: false
       matrix:
-        target:
+        platform:
           - os: linux
             cpu: amd64
           - os: linux
             cpu: i386
-          - os: macos
+          - os: linux-gcc-14
             cpu: amd64
+          - os: macos-14
+            cpu: arm64
           - os: windows
             cpu: amd64
-          #- os: windows
-            #cpu: i386
-        branch: [version-1-6]
+        nim:
+          - ref: version-2-0
+            memory_management: refc
+          - ref: version-2-2
+            memory_management: refc
         include:
-          - target:
+          - platform:
               os: linux
-            builder: ubuntu-20.04
+            builder: ubuntu-22.04
             shell: bash
-          - target:
-              os: macos
-            builder: macos-12
+          - platform:
+              os: linux-gcc-14
+            builder: ubuntu-24.04
             shell: bash
-          - target:
+          - platform:
+              os: macos-14
+            builder: macos-14
+            shell: bash
+          - platform:
               os: windows
-            builder: windows-2019
+            builder: windows-2022
             shell: msys2 {0}
 
     defaults:
       run:
         shell: ${{ matrix.shell }}
 
-    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }} (Nim ${{ matrix.branch }})'
+    name: '${{ matrix.platform.os }}-${{ matrix.platform.cpu }} (Nim ${{ matrix.nim.ref }})'
     runs-on: ${{ matrix.builder }}
-    continue-on-error: ${{ matrix.branch == 'devel' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: true
 
       - name: Setup Nim
         uses: "./.github/actions/install_nim"
         with:
-          os: ${{ matrix.target.os }}
-          cpu: ${{ matrix.target.cpu }}
+          os: ${{ matrix.platform.os }}
+          cpu: ${{ matrix.platform.cpu }}
           shell: ${{ matrix.shell }}
-          nim_branch: ${{ matrix.branch }}
-
-      - name: Setup Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: '~1.15.5'
-
-      - name: Install p2pd
-        run: |
-          V=1 bash scripts/build_p2pd.sh p2pdCache 124530a3
+          nim_ref: ${{ matrix.nim.ref }}
 
       - name: Restore deps from cache
         id: deps-cache
         uses: actions/cache@v3
         with:
           path: nimbledeps
-          key: nimbledeps-${{ hashFiles('.pinned') }}
+          # Using nim.ref as a simple way to differentiate between nimble using the "pkgs" or "pkgs2" directories.
+          # The change happened on Nimble v0.14.0. Also forcing the deps to be reinstalled on each os and cpu.
+          key: nimbledeps-${{ matrix.nim.ref }}-${{ matrix.builder }}-${{ matrix.platform.cpu }}-${{ hashFiles('.pinned') }} # hashFiles returns a different value on windows
 
       - name: Install deps
         if: ${{ steps.deps-cache.outputs.cache-hit != 'true' }}
         run: |
           nimble install_pinned
 
+      - name: Use gcc 14
+        if : ${{ matrix.platform.os == 'linux-gcc-14'}}
+        run: |
+          # Add GCC-14 to alternatives
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 14
+
+          # Set GCC-14 as the default
+          sudo update-alternatives --set gcc /usr/bin/gcc-14
+
       - name: Run tests
         run: |
           nim --version
           nimble --version
+          gcc --version
+
+          export NIMFLAGS="${NIMFLAGS} --mm:${{ matrix.nim.memory_management }}" 
           nimble test
-
-  lint:
-    name: "Lint"
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 2  # In PR, has extra merge commit: ^1 = PR, ^2 = base
-
-      - name: Check nph formatting
-        # Pin nph to a specific version to avoid sudden style differences.
-        # Updating nph version should be accompanied with running the new
-        # version on the fluffy directory.
-        run: |
-          VERSION="v0.5.1"
-          ARCHIVE="nph-linux_x64.tar.gz"
-          curl -L "https://github.com/arnetheduck/nph/releases/download/${VERSION}/${ARCHIVE}" -o ${ARCHIVE}
-          tar -xzf ${ARCHIVE}
-          shopt -s extglob  # Enable extended globbing
-          ./nph examples libp2p tests tools *.@(nim|nims|nimble)
-          git diff --exit-code

.github/workflows/coverage.yml

@@ -1,12 +1,12 @@
-name: nim-libp2p codecov builds
+name: Coverage
 
 on:
-  #On push to common branches, this computes the "bases stats" for PRs
+  # On push to common branches, this computes the coverage that PRs will use for diff
   push:
     branches:
       - master
-      - unstable
   pull_request:
+  merge_group:
   workflow_dispatch:
 
 concurrency:
@@ -14,12 +14,13 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  Coverage:
-    runs-on: ubuntu-20.04
+  codecov:
+    name: Run coverage and upload to codecov
+    runs-on: ubuntu-22.04
     env:
       CICOV: YES
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -32,7 +33,7 @@ jobs:
 
       - name: Restore deps from cache
         id: deps-cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: nimbledeps
           key: nimbledeps-${{ hashFiles('.pinned') }}
@@ -42,24 +43,28 @@ jobs:
         run: |
           nimble install_pinned
 
-      - name: Run
+      - name: Setup coverage
         run: |
           sudo apt-get update
           sudo apt-get install -y lcov build-essential git curl
           mkdir coverage
+
+      - name: Run test suite with coverage flags
+        run: |
           export NIMFLAGS="--lineDir:on --passC:-fprofile-arcs --passC:-ftest-coverage --passL:-fprofile-arcs --passL:-ftest-coverage"
           nimble testnative
           nimble testpubsub
           nimble testfilter
+
+      - name: Run coverage
+        run: |
           find nimcache -name *.c -delete
           lcov --capture --directory nimcache --output-file coverage/coverage.info
           shopt -s globstar
           ls `pwd`/libp2p/{*,**/*}.nim
           lcov --extract coverage/coverage.info  `pwd`/libp2p/{*,**/*}.nim --output-file coverage/coverage.f.info
           genhtml coverage/coverage.f.info --output-directory coverage/output
-          bash <(curl -s https://codecov.io/bash) -f coverage/coverage.f.info || echo "Codecov did not collect coverage reports"
 
-          #- uses: actions/upload-artifact@master
-          #  with:
-          #    name: coverage
-          #    path: coverage
+      - name: Upload coverage to codecov
+        run: |
+          bash <(curl -s https://codecov.io/bash) -f coverage/coverage.f.info || echo "Codecov did not collect coverage reports"

.github/workflows/daily.yml

@@ -1,12 +0,0 @@
-name: Daily
-on:
-  schedule:
-    - cron: "30 6 * * *"
-  workflow_dispatch:
-
-jobs:
-  call-multi-nim-common:
-    uses: ./.github/workflows/daily_common.yml
-    with:
-      nim-branch: "['version-1-6','version-2-0']"
-      cpu: "['amd64']"

.github/workflows/daily_amd64.yml

@@ -0,0 +1,42 @@
+name: Daily amd64
+
+on:
+  schedule:
+    - cron: "30 6 * * *"
+  workflow_dispatch:
+
+jobs:
+  test_amd64_latest:
+    name: Daily test amd64 (latest dependencies)
+    uses: ./.github/workflows/daily_common.yml
+    with:
+      nim: "[
+          {'ref': 'version-2-0', 'memory_management': 'refc'},
+          {'ref': 'version-2-2', 'memory_management': 'refc'},
+          {'ref': 'devel', 'memory_management': 'refc'},
+        ]"
+      cpu: "['amd64']"
+  test_amd64_pinned:
+    name: Daily test amd64 (pinned dependencies)
+    uses: ./.github/workflows/daily_common.yml
+    with:
+      pinned_deps: true
+      nim: "[
+          {'ref': 'version-2-0', 'memory_management': 'refc'},
+          {'ref': 'version-2-2', 'memory_management': 'refc'},
+          {'ref': 'devel', 'memory_management': 'refc'},
+        ]"
+      cpu: "['amd64']"
+  notify-on-failure:
+    name: Notify Discord on Failure
+    needs: [test_amd64_latest, test_amd64_pinned]
+    if: failure()
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Discord notification
+        uses: ./.github/actions/discord_notify
+        with:
+          webhook_url: ${{ secrets.DISCORD_WEBHOOK_URL }}

.github/workflows/daily_common.yml

@@ -1,12 +1,18 @@
-name: daily-common
+name: Daily Common
+# Serves as base workflow for daily tasks, it's not run by itself.
 
 on:
   workflow_call:
     inputs:
-      nim-branch:
-        description: 'Nim branch'
+      pinned_deps:
+        description: 'Should dependencies be installed from pinned file or use latest versions'
+        required: false
+        type: boolean
+        default: false
+      nim:
+        description: 'Nim Configuration'
         required: true
-        type: string
+        type: string # Following this format: [{"ref": ..., "memory_management": ...}, ...]
       cpu:
         description: 'CPU'
         required: true
@@ -18,28 +24,30 @@ on:
         default: "[]"
 
 jobs:
-  delete-cache:
+  delete_cache:
+    name: Delete github action's branch cache
     runs-on: ubuntu-latest
+    continue-on-error: true
     steps:
       - uses: snnaplab/delete-branch-cache-action@v1
 
-  build:
-    needs: delete-cache
-    timeout-minutes: 120
+  test:
+    needs: delete_cache
+    timeout-minutes: 40
     strategy:
       fail-fast: false
       matrix:
         platform:
           - os: linux
-            builder: ubuntu-20
+            builder: ubuntu-22.04
             shell: bash
           - os: macos
-            builder: macos-12
+            builder: macos-13
             shell: bash
           - os: windows
-            builder: windows-2019
+            builder: windows-2022
             shell: msys2 {0}
-        branch: ${{ fromJSON(inputs.nim-branch) }}
+        nim: ${{ fromJSON(inputs.nim) }}
         cpu: ${{ fromJSON(inputs.cpu) }}
         exclude: ${{ fromJSON(inputs.exclude) }}
 
@@ -47,9 +55,8 @@ jobs:
       run:
         shell: ${{ matrix.platform.shell }}
 
-    name: '${{ matrix.platform.os }}-${{ matrix.cpu }} (Nim ${{ matrix.branch }})'
+    name: '${{ matrix.platform.os }}-${{ matrix.cpu }} (Nim ${{ matrix.nim.ref }})'
     runs-on: ${{ matrix.platform.builder }}
-    continue-on-error: ${{ matrix.branch == 'devel' || matrix.branch == 'version-2-0' }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -59,26 +66,32 @@ jobs:
         with:
           os: ${{ matrix.platform.os }}
           shell: ${{ matrix.platform.shell }}
-          nim_branch: ${{ matrix.branch }}
+          nim_ref: ${{ matrix.nim.ref }}
           cpu: ${{ matrix.cpu }}
 
-      - name: Setup Go
-        uses: actions/setup-go@v4
-        with:
-          go-version: '~1.15.5'
-          cache: false
-
-      - name: Install p2pd
+      - name: Install dependencies (pinned)
+        if: ${{ inputs.pinned_deps }}
         run: |
-          V=1 bash scripts/build_p2pd.sh p2pdCache 124530a3
+          nimble install_pinned
+
+      - name: Install dependencies (latest)
+        if: ${{ inputs.pinned_deps == false }}
+        run: |
+          nimble install -y --depsOnly
 
       - name: Run tests
         run: |
           nim --version
           nimble --version
-          nimble install -y --depsOnly
-          NIMFLAGS="${NIMFLAGS} --mm:refc" nimble test
-          if [[ "${{ matrix.branch }}" == "devel" ]]; then
-            echo -e "\nTesting with '--mm:orc':\n"
-            NIMFLAGS="${NIMFLAGS} --mm:orc" nimble test
-          fi
+
+          export NIMFLAGS="${NIMFLAGS} --mm:${{ matrix.nim.memory_management }}"
+          nimble test
+
+      - name: Run integration tests
+        if: ${{ matrix.platform.os == 'linux' && matrix.cpu == 'amd64' }}
+        run: |
+          nim --version
+          nimble --version
+
+          export NIMFLAGS="${NIMFLAGS} --mm:${{ matrix.nim.memory_management }}"
+          nimble testintegration

.github/workflows/daily_i386.yml

@@ -1,13 +1,50 @@
 name: Daily i386
+
 on:
   schedule:
     - cron: "30 6 * * *"
   workflow_dispatch:
 
 jobs:
-  call-multi-nim-common:
+  test_i386_latest:
+    name: Daily i386 (latest dependencies)
     uses: ./.github/workflows/daily_common.yml
     with:
-      nim-branch: "['version-1-6','version-2-0', 'devel']"
+      nim: "[
+          {'ref': 'version-2-0', 'memory_management': 'refc'},
+          {'ref': 'version-2-2', 'memory_management': 'refc'},
+          {'ref': 'devel', 'memory_management': 'refc'},
+        ]"
       cpu: "['i386']"
-      exclude: "[{'platform': {'os':'macos'}}, {'platform': {'os':'windows'}}]"
+      exclude: "[
+          {'platform': {'os':'macos'}},
+          {'platform': {'os':'windows'}},
+        ]"
+  test_i386_pinned:
+    name: Daily i386 (pinned dependencies)
+    uses: ./.github/workflows/daily_common.yml
+    with:
+      pinned_deps: true
+      nim: "[
+          {'ref': 'version-2-0', 'memory_management': 'refc'},
+          {'ref': 'version-2-2', 'memory_management': 'refc'},
+          {'ref': 'devel', 'memory_management': 'refc'},
+        ]"
+      cpu: "['i386']"
+      exclude: "[
+          {'platform': {'os':'macos'}},
+          {'platform': {'os':'windows'}},
+        ]"
+  notify-on-failure:
+    name: Notify Discord on Failure
+    needs: [test_i386_latest, test_i386_pinned]
+    if: failure()
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Discord notification
+        uses: ./.github/actions/discord_notify
+        with:
+          webhook_url: ${{ secrets.DISCORD_WEBHOOK_URL }}

.github/workflows/daily_nim_devel.yml

@@ -1,12 +0,0 @@
-name: Daily Nim Devel
-on:
-  schedule:
-    - cron: "30 6 * * *"
-  workflow_dispatch:
-
-jobs:
-  call-multi-nim-common:
-    uses: ./.github/workflows/daily_common.yml
-    with:
-      nim-branch: "['devel']"
-      cpu: "['amd64']"

.github/workflows/daily_nimbus.yml

@@ -0,0 +1,39 @@
+name: Daily Nimbus
+
+on:
+  schedule:
+    - cron: "30 6 * * *"
+  workflow_dispatch:
+
+jobs:
+  compile_nimbus:
+    timeout-minutes: 80
+    name: 'Compile Nimbus (linux-amd64)'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Compile nimbus using nim-libp2p
+        run: |
+          git clone --branch unstable --single-branch https://github.com/status-im/nimbus-eth2.git
+          cd nimbus-eth2
+          git submodule set-branch --branch ${{ github.sha }} vendor/nim-libp2p
+
+          make -j"$(nproc)"
+          make -j"$(nproc)" nimbus_beacon_node
+
+  notify-on-failure:
+    name: Notify Discord on Failure
+    needs: compile_nimbus
+    if: failure()
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Discord notification
+        uses: ./.github/actions/discord_notify
+        with:
+          webhook_url: ${{ secrets.DISCORD_WEBHOOK_URL }}
+

.github/workflows/dependencies.yml

@@ -0,0 +1,65 @@
+name: Dependencies
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+
+jobs:
+  bumper:
+    # Pushes new refs to interested external repositories, so they can do early testing against libp2p's newer versions
+    runs-on: ubuntu-latest
+    name: Bump libp2p's version for ${{ matrix.target.repository }}:${{ matrix.target.ref }}
+    strategy:
+      fail-fast: false
+      matrix:
+        target:
+          - repository: status-im/nimbus-eth2
+            ref: unstable
+            secret: ACTIONS_GITHUB_TOKEN_NIMBUS_ETH2
+          - repository: waku-org/nwaku
+            ref: master
+            secret: ACTIONS_GITHUB_TOKEN_NWAKU
+          - repository: codex-storage/nim-codex
+            ref: master
+            secret: ACTIONS_GITHUB_TOKEN_NIM_CODEX
+    steps:
+      - name: Clone target repository
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ matrix.target.repository }}
+          ref: ${{ matrix.target.ref}}
+          path: nbc
+          fetch-depth: 0
+          token: ${{ secrets[matrix.target.secret] }}
+
+      - name: Checkout this ref in target repository
+        run: |
+          cd nbc
+          git submodule update --init vendor/nim-libp2p
+          cd vendor/nim-libp2p
+          git checkout $GITHUB_SHA
+
+      - name: Push this ref to target repository
+        run: |
+          cd nbc
+          git config --global user.email "${{ github.actor }}@users.noreply.github.com"
+          git config --global user.name = "${{ github.actor }}"
+          git commit --allow-empty -a -m "auto-bump nim-libp2p"
+          git branch -D nim-libp2p-auto-bump-${{ matrix.target.ref }} || true
+          git switch -c nim-libp2p-auto-bump-${{ matrix.target.ref }}
+          git push -f origin nim-libp2p-auto-bump-${{ matrix.target.ref }}
+  notify-on-failure:
+    name: Notify Discord on Failure
+    needs: [bumper]
+    if: failure()
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Discord notification
+        uses: ./.github/actions/discord_notify
+        with:
+          webhook_url: ${{ secrets.DISCORD_WEBHOOK_URL }}

.github/workflows/documentation.yml

@@ -1,27 +1,27 @@
-name: Docgen
+name: Documentation Generation And Publishing
+
 on:
   push:
     branches:
       - master
   workflow_dispatch:
 
-
 jobs:
   build:
     timeout-minutes: 20
 
     name: 'Generate & upload documentation'
-    runs-on: 'ubuntu-20.04'
+    runs-on: ubuntu-latest
     continue-on-error: true
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: true
 
       - uses: jiro4989/setup-nim-action@v1
         with:
-          nim-version: '1.6.x'
+          nim-version: '2.2.x'
 
       - name: Generate doc
         run: |
@@ -35,7 +35,7 @@ jobs:
           ls ${GITHUB_REF##*/}
 
       - name: Clone the gh-pages branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: vacp2p/nim-libp2p
           ref: gh-pages
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - uses: actions/setup-python@v2
         with:
@@ -80,7 +80,7 @@ jobs:
         run: pip install mkdocs-material && nimble -y website
 
       - name: Clone the gh-pages branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: vacp2p/nim-libp2p
           ref: gh-pages

.github/workflows/examples.yml

@@ -0,0 +1,60 @@
+name: Examples
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  merge_group:
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  examples:
+    timeout-minutes: 30
+    strategy:
+      fail-fast: false
+
+    defaults:
+      run:
+        shell: bash
+
+    name: "Build Examples"
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Setup Nim
+        uses: "./.github/actions/install_nim"
+        with:
+          shell: bash
+          os: linux
+          cpu: amd64
+          nim_ref: version-2-2
+
+      - name: Restore deps from cache
+        id: deps-cache
+        uses: actions/cache@v3
+        with:
+          path: nimbledeps
+          key: nimbledeps-${{ hashFiles('.pinned') }}
+
+      - name: Install deps
+        if: ${{ steps.deps-cache.outputs.cache-hit != 'true' }}
+        run: |
+          nimble install_pinned
+
+      - name: Build and run examples
+        run: |
+          nim --version
+          nimble --version
+          gcc --version
+
+          NIMFLAGS="${NIMFLAGS} --mm:${{ matrix.nim.memory_management }}"
+          nimble examples

.github/workflows/interop.yml

@@ -1,9 +1,11 @@
-name: Interoperability Testing
+name: Interoperability Tests
+
 on:
   pull_request:
+  merge_group:
   push:
     branches:
-      - unstable
+      - master
   workflow_dispatch:
 
 concurrency:
@@ -15,26 +17,73 @@ jobs:
     name: Run transport interoperability tests
     runs-on: ubuntu-22.04
     steps:
+      - name: Free Disk Space
+        # For some reason we have space issues while running this action. Likely while building the image.
+        # This action will free up some space to avoid the issue.
+        uses: jlumbroso/free-disk-space@v1.3.1
+        with:
+          tool-cache: true
+
       - uses: actions/checkout@v4
       - uses: docker/setup-buildx-action@v3
       - name: Build image
-        run: docker buildx build --load -t nim-libp2p-head -f tests/transport-interop/Dockerfile .
+        run: docker buildx build --load -t nim-libp2p-head -f interop/transport/Dockerfile .
       - name: Run tests
         uses: libp2p/test-plans/.github/actions/run-transport-interop-test@master
         with:
           test-filter: nim-libp2p-head
-          extra-versions: ${{ github.workspace }}/tests/transport-interop/version.json
+          # without suffix action fails because "hole-punching-interop" artifacts have 
+          # the same name as "transport-interop" artifacts
+          test-results-suffix: transport-interop
+          extra-versions: ${{ github.workspace }}/interop/transport/version.json
+          s3-cache-bucket: ${{ vars.S3_LIBP2P_BUILD_CACHE_BUCKET_NAME }}
+          s3-access-key-id: ${{ vars.S3_LIBP2P_BUILD_CACHE_AWS_ACCESS_KEY_ID }}
+          s3-secret-access-key: ${{ secrets.S3_LIBP2P_BUILD_CACHE_AWS_SECRET_ACCESS_KEY }}
+          aws-region: ${{ vars.S3_LIBP2P_BUILD_CACHE_AWS_REGION }}
 
-  run-hole-punching-interop:
-    name: Run hole-punching interoperability tests
+  # nim-libp2p#1367: hole punching tests are temporary disabled as they keep failing
+  # and issue does not seem to be on nim-libp2p side
+  # run-hole-punching-interop:
+  #   name: Run hole-punching interoperability tests
+  #   runs-on: ubuntu-22.04
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - uses: docker/setup-buildx-action@v3
+  #     - name: Build image
+  #       run: docker buildx build --load -t nim-libp2p-head -f interop/hole-punching/Dockerfile .
+  #     - name: Run tests
+  #       uses: libp2p/test-plans/.github/actions/run-interop-hole-punch-test@master
+  #       with:
+  #         test-filter: nim-libp2p-head
+  #         extra-versions: ${{ github.workspace }}/interop/hole-punching/version.json
+  #         s3-cache-bucket: ${{ vars.S3_LIBP2P_BUILD_CACHE_BUCKET_NAME }}
+  #         s3-access-key-id: ${{ vars.S3_LIBP2P_BUILD_CACHE_AWS_ACCESS_KEY_ID }}
+  #         s3-secret-access-key: ${{ secrets.S3_LIBP2P_BUILD_CACHE_AWS_SECRET_ACCESS_KEY }}
+  #         aws-region: ${{ vars.S3_LIBP2P_BUILD_CACHE_AWS_REGION }}
+  run-autonatv2-interop:
+    name: Run AutoNATv2 interoperability tests
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
-      - uses: docker/setup-buildx-action@v3
-      - name: Build image
-        run: docker buildx build --load -t nim-libp2p-head -f tests/hole-punching-interop/Dockerfile .
-      - name: Run tests
-        uses: libp2p/test-plans/.github/actions/run-interop-hole-punch-test@master
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
         with:
-          test-filter: nim-libp2p-head
-          extra-versions: ${{ github.workspace }}/tests/hole-punching-interop/version.json
+          go-version: "1.25"
+
+      - name: Set up Nim
+        uses: jiro4989/setup-nim-action@v1
+        with:
+          nim-version: "stable"
+
+      - name: Run Go and Nim together
+        run: |
+          nimble install
+          cd interop/autonatv2/go-peer
+          git clone https://github.com/libp2p/go-libp2p
+          cd go-libp2p
+          git apply ../disable-filtering-of-private-ip-addresses.patch
+          cd ..
+          go run testautonatv2.go &
+          cd ../nim-peer
+          nim r src/nim_peer.nim $(cat ../go-peer/peer.id)

.github/workflows/linters.yml

@@ -0,0 +1,27 @@
+name: Linters
+
+on:
+  pull_request:
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  nph:
+    name: NPH
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2  # In PR, has extra merge commit: ^1 = PR, ^2 = base
+
+      - name: Check `nph` formatting
+        uses: arnetheduck/nph-action@v1
+        with:
+          version: 0.6.1
+          options: "examples libp2p tests interop tools *.nim*"
+          fail: true
+          suggest: true

.github/workflows/performance.yml

@@ -0,0 +1,94 @@
+name: Performance
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  merge_group:
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  performance:
+    timeout-minutes: 20
+    strategy:
+      fail-fast: false
+
+    defaults:
+      run:
+        shell: bash
+
+    env:
+      VACP2P: "vacp2p"
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+      PR_NUMBER: ${{ github.event.number }}
+      BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
+      MARKER: "<!-- perf-summary-marker -->"
+      COMMENT_SUMMARY_PATH: "/tmp/perf-summary.md"
+      SHARED_VOLUME_PATH: "performance/output"
+      DOCKER_STATS_PREFIX: "docker_stats_"
+      PUBLISH_BRANCH_NAME: "performance_plots"
+      CHECKOUT_SUBFOLDER_SUBPLOTS: "subplots"
+      PUBLISH_DIR_PLOTS: "plots"
+      CHECKOUT_SUBFOLDER_HISTORY: "history"
+      PUBLISH_DIR_LATENCY_HISTORY: "latency_history"
+      LATENCY_HISTORY_PATH: "history/latency_history"
+      LATENCY_HISTORY_PREFIX: "pr"
+      LATENCY_HISTORY_PLOT_FILENAME: "latency_history_all_scenarios.png"
+
+    name: "Performance"
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker Image with cache
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: performance/Dockerfile
+          tags: test-node:latest
+          load: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Run
+        run: |
+          ./performance/runner.sh
+
+      - name: Process latency and docker stats
+        uses: ./.github/actions/process_stats
+
+      - name: Publish history
+        if: github.repository_owner == env.VACP2P
+        uses: ./.github/actions/publish_history
+
+      - name: Generate plots
+        if: github.repository_owner == env.VACP2P
+        uses: ./.github/actions/generate_plots
+
+      - name: Post/Update PR comment
+        if: github.event_name == 'pull_request'
+        uses: ./.github/actions/add_comment
+
+      - name: Upload performance artifacts
+        if: success() || failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: performance-artifacts
+          path: |
+            performance/output/pr*_latency.csv
+            performance/output/*.png
+            history/latency_history/*.png
+          if-no-files-found: ignore
+          retention-days: 7

.github/workflows/pr_lint.yml

@@ -0,0 +1,35 @@
+name: "Conventional Commits"
+
+on:
+  pull_request:
+    types:
+      - opened
+      - edited
+      - reopened
+      - synchronize
+jobs:
+  main:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: amannn/action-semantic-pull-request@v5
+        id: lint_pr_title
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - uses: marocchino/sticky-pull-request-comment@v2
+        # When the previous steps fails, the workflow would stop. By adding this
+        # condition you can continue the execution with the populated error message.
+        if: always() && (steps.lint_pr_title.outputs.error_message != null)
+        with:
+          header: pr-title-lint-error
+          message: |
+            Pull requests titles must follow the [Conventional Commits specification](https://www.conventionalcommits.org/en/v1.0.0/)
+
+      # Delete a previous comment when the issue has been resolved
+      - if: ${{ steps.lint_pr_title.outputs.error_message == null }}
+        uses: marocchino/sticky-pull-request-comment@v2
+        with:   
+          header: pr-title-lint-error
+          delete: true

.gitignore

@@ -17,3 +17,11 @@ examples/*.md
 nimble.develop
 nimble.paths
 go-libp2p-daemon/
+
+# Ignore all test build files in tests folder (auto generated when running tests).
+# First rule (`tests/**/test*[^.]*`) will ignore all binaries: has prefix test +  does not have dot in name.
+# Second and third rules are here to un-ignores all files with extension and Docker file,
+# because it appears that vs code is skipping text search is some tests files without these rules.
+tests/**/test*[^.]* 
+!tests/**/*.*
+!tests/**/Dockerfile

.pinned

@@ -1,17 +1,21 @@
-bearssl;https://github.com/status-im/nim-bearssl@#e4157639db180e52727712a47deaefcbbac6ec86
-chronicles;https://github.com/status-im/nim-chronicles@#32ac8679680ea699f7dbc046e8e0131cac97d41a
-chronos;https://github.com/status-im/nim-chronos@#672db137b7cad9b384b8f4fb551fb6bbeaabfe1b
+bearssl;https://github.com/status-im/nim-bearssl@#34d712933a4e0f91f5e66bc848594a581504a215
+chronicles;https://github.com/status-im/nim-chronicles@#61759a5e8df8f4d68bcd1b4b8c1adab3e72bbd8d
+chronos;https://github.com/status-im/nim-chronos@#b55e2816eb45f698ddaca8d8473e401502562db2
 dnsclient;https://github.com/ba0f3/dnsclient.nim@#23214235d4784d24aceed99bbfe153379ea557c8
-faststreams;https://github.com/status-im/nim-faststreams@#720fc5e5c8e428d9d0af618e1e27c44b42350309
-httputils;https://github.com/status-im/nim-http-utils@#3b491a40c60aad9e8d3407443f46f62511e63b18
-json_serialization;https://github.com/status-im/nim-json-serialization@#85b7ea093cb85ee4f433a617b97571bd709d30df
+faststreams;https://github.com/status-im/nim-faststreams@#c51315d0ae5eb2594d0bf41181d0e1aca1b3c01d
+httputils;https://github.com/status-im/nim-http-utils@#79cbab1460f4c0cdde2084589d017c43a3d7b4f1
+json_serialization;https://github.com/status-im/nim-json-serialization@#2b1c5eb11df3647a2cee107cd4cce3593cbb8bcf
 metrics;https://github.com/status-im/nim-metrics@#6142e433fc8ea9b73379770a788017ac528d46ff
-nimcrypto;https://github.com/cheatfate/nimcrypto@#1c8d6e3caf3abc572136ae9a1da81730c4eb4288
-results;https://github.com/arnetheduck/nim-results@#f3c666a272c69d70cb41e7245e7f6844797303ad
-secp256k1;https://github.com/status-im/nim-secp256k1@#7246d91c667f4cc3759fdd50339caa45a2ecd8be
-serialization;https://github.com/status-im/nim-serialization@#4bdbc29e54fe54049950e352bb969aab97173b35
-stew;https://github.com/status-im/nim-stew@#3159137d9a3110edb4024145ce0ba778975de40e
-testutils;https://github.com/status-im/nim-testutils@#dfc4c1b39f9ded9baf6365014de2b4bfb4dafc34
-unittest2;https://github.com/status-im/nim-unittest2@#2300fa9924a76e6c96bc4ea79d043e3a0f27120c
-websock;https://github.com/status-im/nim-websock@#f8ed9b40a5ff27ad02a3c237c4905b0924e3f982
-zlib;https://github.com/status-im/nim-zlib@#38b72eda9d70067df4a953f56b5ed59630f2a17b
+ngtcp2;https://github.com/status-im/nim-ngtcp2@#9456daa178c655bccd4a3c78ad3b8cce1f0add73
+nimcrypto;https://github.com/cheatfate/nimcrypto@#19c41d6be4c00b4a2c8000583bd30cf8ceb5f4b1
+quic;https://github.com/vacp2p/nim-quic@#9370190ded18d78a5a9990f57aa8cbbf947f3891
+results;https://github.com/arnetheduck/nim-results@#df8113dda4c2d74d460a8fa98252b0b771bf1f27
+secp256k1;https://github.com/status-im/nim-secp256k1@#f808ed5e7a7bfc42204ec7830f14b7a42b63c284
+serialization;https://github.com/status-im/nim-serialization@#548d0adc9797a10b2db7f788b804330306293088
+stew;https://github.com/status-im/nim-stew@#0db179256cf98eb9ce9ee7b9bc939f219e621f77
+testutils;https://github.com/status-im/nim-testutils@#9e842bd58420d23044bc55e16088e8abbe93ce51
+unittest2;https://github.com/status-im/nim-unittest2@#8b51e99b4a57fcfb31689230e75595f024543024
+websock;https://github.com/status-im/nim-websock@#d5cd89062cd2d168ef35193c7d29d2102921d97e
+zlib;https://github.com/status-im/nim-zlib@#daa8723fd32299d4ca621c837430c29a5a11e19a
+jwt;https://github.com/vacp2p/nim-jwt@#18f8378de52b241f321c1f9ea905456e89b95c6f
+bearssl_pkey_decoder;https://github.com/vacp2p/bearssl_pkey_decoder@#21dd3710df9345ed2ad8bf8f882761e07863b8e0

README.md

@@ -20,39 +20,124 @@
 - [Background](#background)
 - [Install](#install)
 - [Getting Started](#getting-started)
-  - [Go-libp2p-daemon](#go-libp2p-daemon)
-- [Modules](#modules)
-- [Users](#users)
-- [Stability](#stability)
 - [Development](#development)
   - [Contribute](#contribute)
   - [Contributors](#contributors)
   - [Core Maintainers](#core-maintainers)
+- [Modules](#modules)
+- [Users](#users)
+- [Stability](#stability)
 - [License](#license)
 
 ## Background
 libp2p is a [Peer-to-Peer](https://en.wikipedia.org/wiki/Peer-to-peer) networking stack, with [implementations](https://github.com/libp2p/libp2p#implementations) in multiple languages derived from the same [specifications.](https://github.com/libp2p/specs)
 
-Building large scale peer-to-peer systems has been complex and difficult in the last 15 years and libp2p is a way to fix that. It's striving to be a modular stack, with sane and secure defaults, useful protocols, while remain open and extensible.
-This implementation in native Nim, relying on [chronos](https://github.com/status-im/nim-chronos) for async. It's used in production by a few [projects](#users)
+Building large scale peer-to-peer systems has been complex and difficult in the last 15 years and libp2p is a way to fix that. It strives to be a modular stack with secure defaults and useful protocols, while remaining open and extensible.
+This is a native Nim implementation, using [chronos](https://github.com/status-im/nim-chronos) for asynchronous execution. It's used in production by a few [projects](#users)
 
 Learn more about libp2p at [**libp2p.io**](https://libp2p.io) and follow libp2p's documentation [**docs.libp2p.io**](https://docs.libp2p.io).
 
 ## Install
-**Prerequisite**
-- [Nim](https://nim-lang.org/install.html)
-> The currently supported Nim version is 1.6.18.
+
+> The currently supported Nim versions are 2.0 and 2.2.
 
 ```
 nimble install libp2p
 ```
+You'll find the nim-libp2p documentation [here](https://vacp2p.github.io/nim-libp2p/docs/). See [examples](./examples) for simple usage patterns.
 
 ## Getting Started
-You'll find the nim-libp2p documentation [here](https://vacp2p.github.io/nim-libp2p/docs/).
+Try out the chat example. Full code can be found [here](https://github.com/vacp2p/nim-libp2p/blob/master/examples/directchat.nim):
+
+```bash
+nim c -r --threads:on examples/directchat.nim
+```
+
+This will output a peer ID such as `QmbmHfVvouKammmQDJck4hz33WvVktNEe7pasxz2HgseRu` which you can use in another instance to connect to it.
+
+```bash
+./examples/directchat
+/connect QmbmHfVvouKammmQDJck4hz33WvVktNEe7pasxz2HgseRu # change this hash by the hash you were given
+```
+
+You can now chat between the instances!
+
+![Chat example](https://imgur.com/caYRu8K.gif)
+
+## Development
+Clone the repository and install the dependencies:
+```sh
+git clone https://github.com/vacp2p/nim-libp2p
+cd nim-libp2p
+nimble install -dy
+```
+You can use `nix develop` to start a shell with Nim and Nimble.
+
+nimble 0.20.1 is required for running `testnative`. At time of writing, this is not available in nixpkgs: If using `nix develop`, follow up with `nimble install nimble`, and use that (typically `~/.nimble/bin/nimble`).
 
 ### Testing
-Remember you'll need to build the `go-libp2p-daemon` binary to run the `nim-libp2p` tests.
-To do so, please follow the installation instructions in [daemonapi.md](examples/go-daemon/daemonapi.md).
+Run unit tests:
+```sh
+# run all the unit tests
+nimble test
+```
+
+For a list of all available test suites, use:
+```
+nimble tasks
+```
+
+### Contribute
+
+The libp2p implementation in Nim is a work in progress. We welcome contributors to help out! Specifically, you can:
+- Go through the modules and **check out existing issues**. This would be especially useful for modules in active development. Some knowledge of IPFS/libp2p may be required, as well as the infrastructure behind it.
+- **Perform code reviews**. Feel free to let us know if you found anything that can a) speed up the project development b) ensure better quality and c) reduce possible future bugs.
+- **Add tests**. Help nim-libp2p to be more robust by adding more tests to the [tests folder](tests/).
+- **Small PRs**. Try to keep PRs atomic and digestible. This makes the review process and pinpointing bugs easier.
+- **Code format**. Code should be formatted with [nph](https://github.com/arnetheduck/nph) and follow the [Status Nim Style Guide](https://status-im.github.io/nim-style-guide/).
+- **Join the Conversation**. Connect with other contributors in our [community channel](https://discord.com/channels/1204447718093750272/1351621032263417946). Ask questions, share ideas, get support, and stay informed about the latest updates from the maintainers.
+
+### Contributors
+<a href="https://github.com/vacp2p/nim-libp2p/graphs/contributors"><img src="https://contrib.rocks/image?repo=vacp2p/nim-libp2p" alt="nim-libp2p contributors"></a>
+
+### Core Maintainers
+<table>
+  <tbody>
+    <tr>
+      <td align="center"><a href="https://github.com/richard-ramos"><img src="https://avatars.githubusercontent.com/u/1106587?v=4?s=100" width="100px;" alt="Richard"/><br /><sub><b>Richard</b></sub></a></td>
+      <td align="center"><a href="https://github.com/vladopajic"><img src="https://avatars.githubusercontent.com/u/4353513?v=4?s=100" width="100px;" alt="Vlado"/><br /><sub><b>Vlado</b></sub></a></td>
+      <td align="center"><a href="https://github.com/gmelodie"><img src="https://avatars.githubusercontent.com/u/8129788?v=4?s=100" width="100px;" alt="Gabe"/><br /><sub><b>Gabe</b></sub></a></td>
+    </tr>
+  </tbody>
+</table>
+
+### Compile time flags
+
+Enable quic transport support
+```bash
+nim c -d:libp2p_quic_support some_file.nim
+```
+
+Enable autotls support
+```bash
+nim c -d:libp2p_autotls_support some_file.nim
+```
+
+Enable expensive metrics (ie, metrics with per-peer cardinality):
+```bash
+nim c -d:libp2p_expensive_metrics some_file.nim
+```
+
+Set list of known libp2p agents for metrics:
+```bash
+nim c -d:libp2p_agents_metrics -d:KnownLibP2PAgents=nimbus,lighthouse,lodestar,prysm,teku some_file.nim
+```
+
+Specify gossipsub specific topics to measure in the metrics:
+```bash
+nim c -d:KnownLibP2PTopics=topic1,topic2,topic3 some_file.nim
+```
+
 
 ## Modules
 List of packages modules implemented in nim-libp2p:
@@ -64,12 +149,12 @@ List of packages modules implemented in nim-libp2p:
 | [connmanager](libp2p/connmanager.nim)                      | Connection manager                                                                                               |
 | [identify / push identify](libp2p/protocols/identify.nim)  | [Identify](https://docs.libp2p.io/concepts/fundamentals/protocols/#identify) protocol                            |
 | [ping](libp2p/protocols/ping.nim)                          | [Ping](https://docs.libp2p.io/concepts/fundamentals/protocols/#ping) protocol                                    |
-| [libp2p-daemon-client](libp2p/daemon/daemonapi.nim)        | [go-daemon](https://github.com/libp2p/go-libp2p-daemon) nim wrapper                                              |
-| [interop-libp2p](tests/testinterop.nim)                    | Interop tests                                                                                                    |
 | **Transports**                                             |                                                                                                                  |
 | [libp2p-tcp](libp2p/transports/tcptransport.nim)           | TCP transport                                                                                                    |
 | [libp2p-ws](libp2p/transports/wstransport.nim)             | WebSocket & WebSocket Secure transport                                                                           |
 | [libp2p-tor](libp2p/transports/tortransport.nim)           | Tor Transport                                                                                                    |
+| [libp2p-quic](libp2p/transports/quictransport.nim)         | Quic Transport                                                                                                   |
+| [libp2p-memory](libp2p/transports/memorytransport.nim)     | Memory Transport                                                                                                 |
 | **Secure Channels**                                        |                                                                                                                  |
 | [libp2p-noise](libp2p/protocols/secure/noise.nim)          | [Noise](https://docs.libp2p.io/concepts/secure-comm/noise/) secure channel                                       |
 | [libp2p-plaintext](libp2p/protocols/secure/plaintext.nim)  | Plain Text for development purposes                                                                              |
@@ -78,10 +163,10 @@ List of packages modules implemented in nim-libp2p:
 | [libp2p-yamux](libp2p/muxers/yamux/yamux.nim)              | [Yamux](https://docs.libp2p.io/concepts/multiplex/yamux/) multiplexer                                            |
 | **Data Types**                                             |                                                                                                                  |
 | [peer-id](libp2p/peerid.nim)                               | [Cryptographic identifiers](https://docs.libp2p.io/concepts/fundamentals/peers/#peer-id)                         |
-| [peer-store](libp2p/peerstore.nim)                         | ["Address book" of known peers](https://docs.libp2p.io/concepts/fundamentals/peers/#peer-store)                  |
+| [peer-store](libp2p/peerstore.nim)                         | [Address book of known peers](https://docs.libp2p.io/concepts/fundamentals/peers/#peer-store)                  |
 | [multiaddress](libp2p/multiaddress.nim)                    | [Composable network addresses](https://github.com/multiformats/multiaddr)                                        |
-| [signed envelope](libp2p/signed_envelope.nim)              | [Signed generic data container](https://github.com/libp2p/specs/blob/master/RFC/0002-signed-envelopes.md)        |
-| [routing record](libp2p/routing_record.nim)                | [Signed peer dialing informations](https://github.com/libp2p/specs/blob/master/RFC/0003-routing-records.md)      |
+| [signed-envelope](libp2p/signed_envelope.nim)              | [Signed generic data container](https://github.com/libp2p/specs/blob/master/RFC/0002-signed-envelopes.md)        |
+| [routing-record](libp2p/routing_record.nim)                | [Signed peer dialing informations](https://github.com/libp2p/specs/blob/master/RFC/0003-routing-records.md)      |
 | [discovery manager](libp2p/discovery/discoverymngr.nim)    | Discovery Manager                                                                                                |
 | **Utilities**                                              |                                                                                                                  |
 | [libp2p-crypto](libp2p/crypto)                             | Cryptographic backend                                                                                            |
@@ -107,67 +192,7 @@ The versioning follows [semver](https://semver.org/), with some additions:
 - Some of libp2p procedures are marked as `.public.`, they will remain compatible during each `MAJOR` version
 - The rest of the procedures are considered internal, and can change at any `MINOR` version (but remain compatible for each new `PATCH`)
 
-We aim to be compatible at all time with at least 2 Nim `MINOR` versions, currently `1.6 & 2.0`
-
-## Development
-Clone and Install dependencies:
-```sh
-git clone https://github.com/vacp2p/nim-libp2p
-cd nim-libp2p
-# to use dependencies computed by nimble
-nimble install -dy
-# OR to install the dependencies versions used in CI
-nimble install_pinned
-```
-
-Run unit tests:
-```sh
-# run all the unit tests
-nimble test
-```
-This requires the go daemon to be available. To only run native tests, use `nimble testnative`.
-Or use `nimble tasks` to show all available tasks.
-
-### Contribute
-
-The libp2p implementation in Nim is a work in progress. We welcome contributors to help out! Specifically, you can:
-- Go through the modules and **check out existing issues**. This would be especially useful for modules in active development. Some knowledge of IPFS/libp2p may be required, as well as the infrastructure behind it.
-- **Perform code reviews**. Feel free to let us know if you found anything that can a) speed up the project development b) ensure better quality and c) reduce possible future bugs.
-- **Add tests**. Help nim-libp2p to be more robust by adding more tests to the [tests folder](tests/).
-- **Small PRs**. Try to keep PRs atomic and digestible. This makes the review process and pinpointing bugs easier.
-- **Code format**. Please format code using [nph](https://github.com/arnetheduck/nph) v0.5.1. This will ensure a consistent codebase and make PRs easier to review. A CI rule has been added to ensure that future commits are all formatted using the same nph version.
-The code follows the [Status Nim Style Guide](https://status-im.github.io/nim-style-guide/).
-
-### Contributors
-<a href="https://github.com/vacp2p/nim-libp2p/graphs/contributors"><img src="https://contrib.rocks/image?repo=vacp2p/nim-libp2p" alt="nim-libp2p contributors"></a>
-
-### Core Maintainers
-<table>
-  <tbody>
-    <tr>
-      <td align="center"><a href="https://github.com/Menduist"><img src="https://avatars.githubusercontent.com/u/13471753?v=4?s=100" width="100px;" alt="Tanguy"/><br /><sub><b>Tanguy (Menduist)</b></sub></a></td>
-      <td align="center"><a href="https://github.com/lchenut"><img src="https://avatars.githubusercontent.com/u/11214565?v=4?s=100" width="100px;" alt="Ludovic"/><br /><sub><b>Ludovic</b></sub></a></td>
-      <td align="center"><a href="https://github.com/diegomrsantos"><img src="https://avatars.githubusercontent.com/u/7316595?v=4?s=100" width="100px;" alt="Diego"/><br /><sub><b>Diego</b></sub></a></td>
-    </tr>
-  </tbody>
-</table>
-
-### Compile time flags
-
-Enable expensive metrics (ie, metrics with per-peer cardinality):
-```bash
-nim c -d:libp2p_expensive_metrics some_file.nim
-```
-
-Set list of known libp2p agents for metrics:
-```bash
-nim c -d:libp2p_agents_metrics -d:KnownLibP2PAgents=nimbus,lighthouse,lodestar,prysm,teku some_file.nim
-```
-
-Specify gossipsub specific topics to measure in the metrics:
-```bash
-nim c -d:KnownLibP2PTopics=topic1,topic2,topic3 some_file.nim
-```
+We aim to be compatible at all time with at least 2 Nim `MINOR` versions, currently `2.0 & 2.2`
 
 ## License
 

config.nims

@@ -4,14 +4,19 @@ if dirExists("nimbledeps/pkgs"):
 if dirExists("nimbledeps/pkgs2"):
   switch("NimblePath", "nimbledeps/pkgs2")
 
+switch("warningAsError", "UnusedImport:on")
+switch("warningAsError", "UseBase:on")
 switch("warning", "CaseTransition:off")
 switch("warning", "ObservableStores:off")
 switch("warning", "LockLevel:off")
+
 --styleCheck:
   usages
-switch("warningAsError", "UseBase:on")
 --styleCheck:
   error
+--mm:
+  refc
+  # reconsider when there's a version-2-2 branch worth testing with as we might switch to orc
 
 # Avoid some rare stack corruption while using exceptions with a SEH-enabled
 # toolchain: https://github.com/status-im/nimbus-eth2/issues/3121
@@ -19,7 +24,7 @@ if defined(windows) and not defined(vcc):
   --define:
     nimRawSetjmp
 
-# begin Nimble config (version 1)
-when fileExists("nimble.paths"):
+# begin Nimble config (version 2)
+when withDir(thisDir(), system.fileExists("nimble.paths")):
   include "nimble.paths"
 # end Nimble config

examples/README.md

@@ -1,5 +1,5 @@
 # nim-libp2p examples
 
-In this folder, you'll find the sources of the [nim-libp2p website](https://status-im.github.io/nim-libp2p/docs/)
+In this folder, you'll find the sources of the [nim-libp2p website](https://vacp2p.github.io/nim-libp2p/docs/)
 
 We recommand to follow the tutorials on the website, but feel free to grok the sources here!

examples/circuitrelay.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # Circuit Relay example
 ##
 ## Circuit Relay can be used when a node cannot reach another node
@@ -26,7 +27,10 @@ proc main() {.async.} =
   let customProtoCodec = "/test"
   var proto = new LPProtocol
   proto.codec = customProtoCodec
-  proto.handler = proc(conn: Connection, proto: string) {.async.} =
+  proto.handler = proc(
+      conn: Connection, proto: string
+  ) {.async: (raises: [CancelledError]).} =
+    try:
       var msg = string.fromBytes(await conn.readLp(1024))
       echo "1 - Dst Received: ", msg
       assert "test1" == msg
@@ -35,6 +39,10 @@ proc main() {.async.} =
       echo "2 - Dst Received: ", msg
       assert "test3" == msg
       await conn.writeLp("test4")
+    except CancelledError as e:
+      raise e
+    except CatchableError as e:
+      echo "exception in handler", e.msg
 
   let
     relay = Relay.new()

examples/directchat.nim

@@ -1,3 +1,4 @@
+{.used.}
 when not (compileOption("threads")):
   {.fatal: "Please, compile this program with the --threads:on option!".}
 
@@ -43,12 +44,17 @@ proc new(T: typedesc[ChatProto], c: Chat): T =
   let chatproto = T()
 
   # create handler for incoming connection
-  proc handle(stream: Connection, proto: string) {.async.} =
+  proc handle(stream: Connection, proto: string) {.async: (raises: [CancelledError]).} =
+    try:
       if c.connected and not c.conn.closed:
         c.writeStdout "a chat session is already in progress - refusing incoming peer!"
-      await stream.close()
       else:
         await c.handlePeer(stream)
+    except CancelledError as e:
+      raise e
+    except CatchableError as e:
+      echo "exception in handler", e.msg
+    finally:
       await stream.close()
 
   # assign the new handler

examples/examples_build.nim

@@ -0,0 +1,3 @@
+{.used.}
+
+import directchat, tutorial_6_game

examples/examples_run.nim

@@ -0,0 +1,5 @@
+{.used.}
+
+import
+  helloworld, circuitrelay, tutorial_1_connect, tutorial_2_customproto,
+  tutorial_3_protobuf, tutorial_4_gossipsub, tutorial_5_discovery

examples/go-daemon/bootstrap.nim

@@ -1,54 +0,0 @@
-import chronos, nimcrypto, strutils
-import ../../libp2p/daemon/daemonapi
-import ../hexdump
-
-const PubSubTopic = "test-net"
-
-proc dumpSubscribedPeers(api: DaemonAPI) {.async.} =
-  var peers = await api.pubsubListPeers(PubSubTopic)
-  echo "= List of connected and subscribed peers:"
-  for item in peers:
-    echo item.pretty()
-
-proc dumpAllPeers(api: DaemonAPI) {.async.} =
-  var peers = await api.listPeers()
-  echo "Current connected peers count = ", len(peers)
-  for item in peers:
-    echo item.peer.pretty()
-
-proc monitor(api: DaemonAPI) {.async.} =
-  while true:
-    echo "Dumping all peers"
-    await dumpAllPeers(api)
-    await sleepAsync(5000)
-
-proc main() {.async.} =
-  echo "= Starting P2P bootnode"
-  var api = await newDaemonApi({DHTFull, PSGossipSub})
-  var id = await api.identity()
-  echo "= P2P bootnode ", id.peer.pretty(), " started."
-  let mcip4 = multiCodec("ip4")
-  let mcip6 = multiCodec("ip6")
-  echo "= You can use one of this addresses to bootstrap your nodes:"
-  for item in id.addresses:
-    if item.protoCode() == mcip4 or item.protoCode() == mcip6:
-      echo $item & "/ipfs/" & id.peer.pretty()
-
-  asyncSpawn monitor(api)
-
-  proc pubsubLogger(
-      api: DaemonAPI, ticket: PubsubTicket, message: PubSubMessage
-  ): Future[bool] {.async.} =
-    let msglen = len(message.data)
-    echo "= Recieved pubsub message with length ",
-      msglen, " bytes from peer ", message.peer.pretty()
-    echo dumpHex(message.data)
-    await api.dumpSubscribedPeers()
-    result = true
-
-  var ticket = await api.pubsubSubscribe(PubSubTopic, pubsubLogger)
-
-when isMainModule:
-  waitFor(main())
-  while true:
-    poll()

examples/go-daemon/chat.nim

@@ -1,132 +0,0 @@
-import chronos, nimcrypto, strutils
-import ../../libp2p/daemon/daemonapi
-
-## nim c -r --threads:on chat.nim
-when not (compileOption("threads")):
-  {.fatal: "Please, compile this program with the --threads:on option!".}
-
-const ServerProtocols = @["/test-chat-stream"]
-
-type CustomData = ref object
-  api: DaemonAPI
-  remotes: seq[StreamTransport]
-  consoleFd: AsyncFD
-  serveFut: Future[void]
-
-proc threadMain(wfd: AsyncFD) {.thread.} =
-  ## This procedure performs reading from `stdin` and sends data over
-  ## pipe to main thread.
-  var transp = fromPipe(wfd)
-
-  while true:
-    var line = stdin.readLine()
-    let res = waitFor transp.write(line & "\r\n")
-
-proc serveThread(udata: CustomData) {.async.} =
-  ## This procedure perform reading on pipe and sends data to remote clients.
-  var transp = fromPipe(udata.consoleFd)
-
-  proc remoteReader(transp: StreamTransport) {.async.} =
-    while true:
-      var line = await transp.readLine()
-      if len(line) == 0:
-        break
-      echo ">> ", line
-
-  while true:
-    try:
-      var line = await transp.readLine()
-      if line.startsWith("/connect"):
-        var parts = line.split(" ")
-        if len(parts) == 2:
-          var peerId = PeerId.init(parts[1])
-          var address = MultiAddress.init(multiCodec("p2p-circuit"))
-          address &= MultiAddress.init(multiCodec("p2p"), peerId)
-          echo "= Searching for peer ", peerId.pretty()
-          var id = await udata.api.dhtFindPeer(peerId)
-          echo "= Peer " & parts[1] & " found at addresses:"
-          for item in id.addresses:
-            echo $item
-          echo "= Connecting to peer ", $address
-          await udata.api.connect(peerId, @[address], 30)
-          echo "= Opening stream to peer chat ", parts[1]
-          var stream = await udata.api.openStream(peerId, ServerProtocols)
-          udata.remotes.add(stream.transp)
-          echo "= Connected to peer chat ", parts[1]
-          asyncSpawn remoteReader(stream.transp)
-      elif line.startsWith("/search"):
-        var parts = line.split(" ")
-        if len(parts) == 2:
-          var peerId = PeerId.init(parts[1])
-          echo "= Searching for peer ", peerId.pretty()
-          var id = await udata.api.dhtFindPeer(peerId)
-          echo "= Peer " & parts[1] & " found at addresses:"
-          for item in id.addresses:
-            echo $item
-      elif line.startsWith("/consearch"):
-        var parts = line.split(" ")
-        if len(parts) == 2:
-          var peerId = PeerId.init(parts[1])
-          echo "= Searching for peers connected to peer ", parts[1]
-          var peers = await udata.api.dhtFindPeersConnectedToPeer(peerId)
-          echo "= Found ", len(peers), " connected to peer ", parts[1]
-          for item in peers:
-            var peer = item.peer
-            var addresses = newSeq[string]()
-            var relay = false
-            for a in item.addresses:
-              addresses.add($a)
-              if a.protoName() == "/p2p-circuit":
-                relay = true
-                break
-            if relay:
-              echo peer.pretty(), " * ", " [", addresses.join(", "), "]"
-            else:
-              echo peer.pretty(), " [", addresses.join(", "), "]"
-      elif line.startsWith("/exit"):
-        break
-      else:
-        var msg = line & "\r\n"
-        echo "<< ", line
-        var pending = newSeq[Future[int]]()
-        for item in udata.remotes:
-          pending.add(item.write(msg))
-        if len(pending) > 0:
-          var results = await all(pending)
-    except:
-      echo getCurrentException().msg
-
-proc main() {.async.} =
-  var data = new CustomData
-  data.remotes = newSeq[StreamTransport]()
-
-  var (rfd, wfd) = createAsyncPipe()
-  if rfd == asyncInvalidPipe or wfd == asyncInvalidPipe:
-    raise newException(ValueError, "Could not initialize pipe!")
-
-  data.consoleFd = rfd
-
-  data.serveFut = serveThread(data)
-  var thread: Thread[AsyncFD]
-  thread.createThread(threadMain, wfd)
-
-  echo "= Starting P2P node"
-  data.api = await newDaemonApi({DHTFull, Bootstrap})
-  await sleepAsync(3000)
-  var id = await data.api.identity()
-
-  proc streamHandler(api: DaemonAPI, stream: P2PStream) {.async.} =
-    echo "= Peer ", stream.peer.pretty(), " joined chat"
-    data.remotes.add(stream.transp)
-    while true:
-      var line = await stream.transp.readLine()
-      if len(line) == 0:
-        break
-      echo ">> ", line
-
-  await data.api.addHandler(ServerProtocols, streamHandler)
-  echo "= Your PeerId is ", id.peer.pretty()
-  await data.serveFut
-
-when isMainModule:
-  waitFor(main())

examples/go-daemon/daemonapi.md

@@ -1,61 +0,0 @@
-# Table of Contents
-- [Introduction](#introduction)
-- [Prerequisites](#prerequisites)
-- [Installation](#installation)
-  - [Script](#script)
-- [Usage](#usage)
-  - [Example](#example)
-  - [Getting Started](#getting-started)
-
-# Introduction
-This is a libp2p-backed daemon wrapping the functionalities of go-libp2p for use in Nim. <br>
-For more information about the go daemon, check out [this repository](https://github.com/libp2p/go-libp2p-daemon).
-> **Required only** for running the tests.
-
-# Prerequisites
-Go with version `1.15.15`.
-> You will *likely* be able to build `go-libp2p-daemon` with different Go versions, but **they haven't been tested**.
-
-# Installation
-Follow one of the methods below:
-
-## Script
-Run the build script while having the `go` command pointing to the correct Go version.
-We recommend using `1.15.15`, as previously stated.
-```sh
-./scripts/build_p2pd.sh
-```
-If everything goes correctly, the binary (`p2pd`) should be built and placed in the correct directory.
-If you find any issues, please head into our discord and ask for our assistance.
-
-After successfully building the binary, remember to add it to your path so it can be found. You can do that by running:
-```sh
-export PATH="$PATH:$HOME/go/bin"
-```
-> **Tip:** To make this change permanent, add the command above to your `.bashrc` file.
-
-# Usage 
-
-## Example
-Examples can be found in the [examples folder](https://github.com/status-im/nim-libp2p/tree/readme/examples/go-daemon)
-
-## Getting Started
-Try out the chat example. Full code can be found [here](https://github.com/status-im/nim-libp2p/blob/master/examples/chat.nim):
-
-```bash
-nim c -r --threads:on examples/directchat.nim
-```
-
-This will output a peer ID such as `QmbmHfVvouKammmQDJck4hz33WvVktNEe7pasxz2HgseRu` which you can use in another instance to connect to it.
-
-```bash
-./examples/directchat
-/connect QmbmHfVvouKammmQDJck4hz33WvVktNEe7pasxz2HgseRu
-```
-
-You can now chat between the instances!
-
-![Chat example](https://imgur.com/caYRu8K.gif)
-
-
-

examples/go-daemon/node.nim

@@ -1,46 +0,0 @@
-import chronos, nimcrypto, strutils, os
-import ../../libp2p/daemon/daemonapi
-
-const PubSubTopic = "test-net"
-
-proc main(bn: string) {.async.} =
-  echo "= Starting P2P node"
-  var bootnodes = bn.split(",")
-  var api = await newDaemonApi(
-    {DHTFull, PSGossipSub, WaitBootstrap}, bootstrapNodes = bootnodes, peersRequired = 1
-  )
-  var id = await api.identity()
-  echo "= P2P node ", id.peer.pretty(), " started:"
-  for item in id.addresses:
-    echo item
-
-  proc pubsubLogger(
-      api: DaemonAPI, ticket: PubsubTicket, message: PubSubMessage
-  ): Future[bool] {.async.} =
-    let msglen = len(message.data)
-    echo "= Recieved pubsub message with length ",
-      msglen, " bytes from peer ", message.peer.pretty(), ": "
-    var strdata = cast[string](message.data)
-    echo strdata
-    result = true
-
-  var ticket = await api.pubsubSubscribe(PubSubTopic, pubsubLogger)
-
-  # Waiting for gossipsub interval
-  while true:
-    var peers = await api.pubsubListPeers(PubSubTopic)
-    if len(peers) > 0:
-      break
-    await sleepAsync(1000)
-
-  var data = "HELLO\r\n"
-  var msgData = cast[seq[byte]](data)
-  await api.pubsubPublish(PubSubTopic, msgData)
-
-when isMainModule:
-  if paramCount() != 1:
-    echo "Please supply bootnodes!"
-  else:
-    waitFor(main(paramStr(1)))
-    while true:
-      poll()

examples/helloworld.nim

@@ -1,3 +1,5 @@
+{.used.}
+
 import chronos # an efficient library for async
 import stew/byteutils # various utils
 import libp2p
@@ -11,10 +13,15 @@ type TestProto = ref object of LPProtocol # declare a custom protocol
 
 proc new(T: typedesc[TestProto]): T =
   # every incoming connections will be in handled in this closure
-  proc handle(conn: Connection, proto: string) {.async.} =
+  proc handle(conn: Connection, proto: string) {.async: (raises: [CancelledError]).} =
+    try:
       echo "Got from remote - ", string.fromBytes(await conn.readLp(1024))
       await conn.writeLp("Roger p2p!")
-
+    except CancelledError as e:
+      raise e
+    except CatchableError as e:
+      echo "exception in handler", e.msg
+    finally:
       # We must close the connections ourselves when we're done with it
       await conn.close()
 

examples/index.md

@@ -3,4 +3,4 @@
 Welcome to the nim-libp2p documentation!
 
 Here, you'll find [tutorials](tutorial_1_connect.md) to help you get started, as well as 
-the [full reference](https://status-im.github.io/nim-libp2p/master/libp2p.html).
+the [full reference](https://vacp2p.github.io/nim-libp2p/master/libp2p.html).

examples/tutorial_1_connect.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # Simple ping tutorial
 ##
 ## Hi all, welcome to the first nim-libp2p tutorial!

examples/tutorial_2_customproto.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # Custom protocol in libp2p
 ##
 ## In the [previous tutorial](tutorial_1_connect.md), we've looked at how to create a simple ping program using the `nim-libp2p`.
@@ -25,11 +26,16 @@ type TestProto = ref object of LPProtocol
 
 proc new(T: typedesc[TestProto]): T =
   # every incoming connections will in be handled in this closure
-  proc handle(conn: Connection, proto: string) {.async.} =
+  proc handle(conn: Connection, proto: string) {.async: (raises: [CancelledError]).} =
     # Read up to 1024 bytes from this connection, and transform them into
     # a string
+    try:
       echo "Got from remote - ", string.fromBytes(await conn.readLp(1024))
-    # We must close the connections ourselves when we're done with it
+    except CancelledError as e:
+      raise e
+    except CatchableError as e:
+      echo "exception in handler", e.msg
+    finally:
       await conn.close()
 
   return T.new(codecs = @[TestCodec], handler = handle)

examples/tutorial_3_protobuf.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # Protobuf usage
 ##
 ## In the [previous tutorial](tutorial_2_customproto.md), we created a simple "ping" protocol.
@@ -108,11 +109,17 @@ type
 
 proc new(_: typedesc[MetricProto], cb: MetricCallback): MetricProto =
   var res: MetricProto
-  proc handle(conn: Connection, proto: string) {.async.} =
+  proc handle(conn: Connection, proto: string) {.async: (raises: [CancelledError]).} =
+    try:
       let
         metrics = await res.metricGetter()
         asProtobuf = metrics.encode()
       await conn.writeLp(asProtobuf.buffer)
+    except CancelledError as e:
+      raise e
+    except CatchableError as e:
+      echo "exception in handler", e.msg
+    finally:
       await conn.close()
 
   res = MetricProto.new(@["/metric-getter/1.0.0"], handle)

examples/tutorial_4_gossipsub.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # GossipSub
 ##
 ## In this tutorial, we'll build a simple GossipSub network
@@ -79,8 +80,7 @@ proc oneNode(node: Node, rng: ref HmacDrbgContext) {.async.} =
       let decoded = MetricList.decode(message.data)
       if decoded.isErr:
         return ValidationResult.Reject
-      return ValidationResult.Accept
-    ,
+      return ValidationResult.Accept,
   )
   # This "validator" will attach to the `metrics` topic and make sure
   # that every message in this topic is valid. This allows us to stop
@@ -93,7 +93,8 @@ proc oneNode(node: Node, rng: ref HmacDrbgContext) {.async.} =
     node.gossip.subscribe(
       "metrics",
       proc(topic: string, data: seq[byte]) {.async.} =
-        echo MetricList.decode(data).tryGet()
+        let m = MetricList.decode(data).expect("metric can be decoded")
+        echo m
       ,
     )
   else:
@@ -158,8 +159,8 @@ waitFor(main())
 ## This is John receiving & logging everyone's metrics.
 ##
 ## ## Going further
-## Building efficient & safe GossipSub networks is a tricky subject. By tweaking the [gossip params](https://status-im.github.io/nim-libp2p/master/libp2p/protocols/pubsub/gossipsub/types.html#GossipSubParams)
-## and [topic params](https://status-im.github.io/nim-libp2p/master/libp2p/protocols/pubsub/gossipsub/types.html#TopicParams),
+## Building efficient & safe GossipSub networks is a tricky subject. By tweaking the [gossip params](https://vacp2p.github.io/nim-libp2p/master/libp2p/protocols/pubsub/gossipsub/types.html#GossipSubParams)
+## and [topic params](https://vacp2p.github.io/nim-libp2p/master/libp2p/protocols/pubsub/gossipsub/types.html#TopicParams),
 ## you can achieve very different properties.
 ##
 ## Also see reports for [GossipSub v1.1](https://gateway.ipfs.io/ipfs/QmRAFP5DBnvNjdYSbWhEhVRJJDFCLpPyvew5GwCCB4VxM4)

examples/tutorial_5_discovery.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # Discovery Manager
 ##
 ## In the [previous tutorial](tutorial_4_gossipsub.md), we built a custom protocol using [protobuf](https://developers.google.com/protocol-buffers) and
@@ -34,8 +35,14 @@ proc createSwitch(rdv: RendezVous = RendezVous.new()): Switch =
 const DumbCodec = "/dumb/proto/1.0.0"
 type DumbProto = ref object of LPProtocol
 proc new(T: typedesc[DumbProto], nodeNumber: int): T =
-  proc handle(conn: Connection, proto: string) {.async.} =
+  proc handle(conn: Connection, proto: string) {.async: (raises: [CancelledError]).} =
+    try:
       echo "Node", nodeNumber, " received: ", string.fromBytes(await conn.readLp(1024))
+    except CancelledError as e:
+      raise e
+    except CatchableError as e:
+      echo "exception in handler", e.msg
+    finally:
       await conn.close()
 
   return T.new(codecs = @[DumbCodec], handler = handle)

examples/tutorial_6_game.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # Tron example
 ##
 ## In this tutorial, we will create a video game based on libp2p, using
@@ -152,9 +153,10 @@ proc draw(g: Game) =
 ## peer know that we are available, check that he is also available,
 ## and launch the game.
 proc new(T: typedesc[GameProto], g: Game): T =
-  proc handle(conn: Connection, proto: string) {.async.} =
+  proc handle(conn: Connection, proto: string) {.async: (raises: [CancelledError]).} =
     defer:
       await conn.closeWithEof()
+    try:
       if g.peerFound.finished or g.hasCandidate:
         await conn.close()
         return
@@ -167,6 +169,10 @@ proc new(T: typedesc[GameProto], g: Game): T =
       # The handler of a protocol must wait for the stream to
       # be finished before returning
       await conn.join()
+    except CancelledError as e:
+      raise e
+    except CatchableError as e:
+      echo "exception in handler", e.msg
 
   return T.new(codecs = @["/tron/1.0.0"], handler = handle)
 
@@ -214,8 +220,7 @@ proc networking(g: Game) {.async.} =
         # We are "player 2"
         swap(g.localPlayer, g.remotePlayer)
       except CatchableError as exc:
-        discard
-    ,
+        discard,
   )
 
   await switch.start()
@@ -268,14 +273,11 @@ nico.init("Status", "Tron")
 nico.createWindow("Tron", mapSize * 4, mapSize * 4, 4, false)
 nico.run(
   proc() =
-    discard
-  ,
+    discard,
   proc(dt: float32) =
-    game.update(dt)
-  ,
+    game.update(dt),
   proc() =
-    game.draw()
-  ,
+    game.draw(),
 )
 waitFor(netFut.cancelAndWait())
 

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1752620740,
+        "narHash": "sha256-f3pO+9lg66mV7IMmmIqG4PL3223TYMlnlw+pnpelbss=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "32a4e87942101f1c9f9865e04dc3ddb175f5f32e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,34 @@
+{
+  description = "nim-libp2p dev shell flake";
+
+  nixConfig = {
+    extra-substituters = [ "https://nix-cache.status.im/" ];
+    extra-trusted-public-keys = [ "nix-cache.status.im-1:x/93lOfLU+duPplwMSBR+OlY4+mo+dCN7n0mr4oPwgY=" ];
+  };
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+  };
+
+  outputs = { self, nixpkgs }:
+    let
+      stableSystems = [
+        "x86_64-linux" "aarch64-linux" "armv7a-linux"
+        "x86_64-darwin" "aarch64-darwin"
+        "x86_64-windows"
+      ];
+      forEach = nixpkgs.lib.genAttrs;
+      forAllSystems = forEach stableSystems;
+      pkgsFor = forEach stableSystems (
+        system: import nixpkgs { inherit system; }
+      );
+    in rec {
+      devShells = forAllSystems (system: {
+        default = pkgsFor.${system}.mkShell {
+          nativeBuildInputs = with pkgsFor.${system}; [
+            nim-2_2 nimble openssl.dev
+          ];
+        };
+      });
+    };
+}

funding.json

@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xc9561ba3e4eca5483b40f8b1a254a73c91fefe4f8aee32dc20c0d96dcf33fe80"
+  }
+}

interop/autonatv2/go-peer/disable-filtering-of-private-ip-addresses.patch

@@ -0,0 +1,76 @@
+From 29bac4cd8f28abfb9efb481d800b7c2e855d9b03 Mon Sep 17 00:00:00 2001
+From: Gabriel Cruz <gabe@gmelodie.com>
+Date: Wed, 17 Sep 2025 10:42:14 -0300
+Subject: [PATCH] disable filtering of private ip addresses
+
+---
+ p2p/protocol/autonatv2/autonat.go | 24 +-----------------------
+ p2p/protocol/autonatv2/server.go  |  9 ++++++---
+ 2 files changed, 7 insertions(+), 26 deletions(-)
+
+diff --git a/p2p/protocol/autonatv2/autonat.go b/p2p/protocol/autonatv2/autonat.go
+index 24883052..00a6211f 100644
+--- a/p2p/protocol/autonatv2/autonat.go
++++ b/p2p/protocol/autonatv2/autonat.go
+@@ -16,7 +16,6 @@ import (
+ 	"github.com/libp2p/go-libp2p/core/peer"
+ 	logging "github.com/libp2p/go-libp2p/gologshim"
+ 	ma "github.com/multiformats/go-multiaddr"
+-	manet "github.com/multiformats/go-multiaddr/net"
+ )
+ 
+ const (
+@@ -180,21 +179,7 @@ func (an *AutoNAT) Close() {
+ // GetReachability makes a single dial request for checking reachability for requested addresses
+ func (an *AutoNAT) GetReachability(ctx context.Context, reqs []Request) (Result, error) {
+ 	var filteredReqs []Request
+-	if !an.allowPrivateAddrs {
+-		filteredReqs = make([]Request, 0, len(reqs))
+-		for _, r := range reqs {
+-			if manet.IsPublicAddr(r.Addr) {
+-				filteredReqs = append(filteredReqs, r)
+-			} else {
+-				log.Error("private address in reachability check", "address", r.Addr)
+-			}
+-		}
+-		if len(filteredReqs) == 0 {
+-			return Result{}, ErrPrivateAddrs
+-		}
+-	} else {
+-		filteredReqs = reqs
+-	}
++	filteredReqs = reqs
+ 	an.mx.Lock()
+ 	now := time.Now()
+ 	var p peer.ID
+@@ -215,13 +200,6 @@ func (an *AutoNAT) GetReachability(ctx context.Context, reqs []Request) (Result,
+ 		log.Debug("reachability check failed", "peer", p, "err", err)
+ 		return res, fmt.Errorf("reachability check with %s failed: %w", p, err)
+ 	}
+-	// restore the correct index in case we'd filtered private addresses
+-	for i, r := range reqs {
+-		if r.Addr.Equal(res.Addr) {
+-			res.Idx = i
+-			break
+-		}
+-	}
+ 	log.Debug("reachability check successful", "peer", p)
+ 	return res, nil
+ }
+diff --git a/p2p/protocol/autonatv2/server.go b/p2p/protocol/autonatv2/server.go
+index 167d3d8e..e6d1e492 100644
+--- a/p2p/protocol/autonatv2/server.go
++++ b/p2p/protocol/autonatv2/server.go
+@@ -196,9 +197,6 @@ func (as *server) serveDialRequest(s network.Stream) EventDialRequestCompleted {
+ 		if err != nil {
+ 			continue
+ 		}
+-		if !as.allowPrivateAddrs && !manet.IsPublicAddr(a) {
+-			continue
+-		}
+ 		if !as.dialerHost.Network().CanDial(p, a) {
+ 			continue
+ 		}
+-- 
+2.51.0
+

interop/autonatv2/go-peer/go.mod

@@ -0,0 +1,97 @@
+module go-peer
+
+go 1.25.1
+
+require github.com/libp2p/go-libp2p v0.43.0
+replace github.com/libp2p/go-libp2p => ./go-libp2p
+
+require (
+	github.com/benbjohnson/clock v1.3.5 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/davidlazar/go-crypto v0.0.0-20200604182044-b73af7476f6c // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 // indirect
+	github.com/flynn/noise v1.1.0 // indirect
+	github.com/francoispqt/gojay v1.2.13 // indirect
+	github.com/google/gopacket v1.1.19 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/gorilla/websocket v1.5.3 // indirect
+	github.com/huin/goupnp v1.3.0 // indirect
+	github.com/ipfs/go-cid v0.5.0 // indirect
+	github.com/ipfs/go-log/v2 v2.6.0 // indirect
+	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
+	github.com/jbenet/go-temp-err-catcher v0.1.0 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.10 // indirect
+	github.com/koron/go-ssdp v0.0.6 // indirect
+	github.com/libp2p/go-buffer-pool v0.1.0 // indirect
+	github.com/libp2p/go-flow-metrics v0.2.0 // indirect
+	github.com/libp2p/go-libp2p-asn-util v0.4.1 // indirect
+	github.com/libp2p/go-msgio v0.3.0 // indirect
+	github.com/libp2p/go-netroute v0.2.2 // indirect
+	github.com/libp2p/go-reuseport v0.4.0 // indirect
+	github.com/libp2p/go-yamux/v5 v5.0.1 // indirect
+	github.com/marten-seemann/tcp v0.0.0-20210406111302-dfbc87cc63fd // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/miekg/dns v1.1.66 // indirect
+	github.com/mikioh/tcpinfo v0.0.0-20190314235526-30a79bb1804b // indirect
+	github.com/mikioh/tcpopt v0.0.0-20190314235656-172688c1accc // indirect
+	github.com/minio/sha256-simd v1.0.1 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/multiformats/go-base32 v0.1.0 // indirect
+	github.com/multiformats/go-base36 v0.2.0 // indirect
+	github.com/multiformats/go-multiaddr v0.16.0 // indirect
+	github.com/multiformats/go-multiaddr-dns v0.4.1 // indirect
+	github.com/multiformats/go-multiaddr-fmt v0.1.0 // indirect
+	github.com/multiformats/go-multibase v0.2.0 // indirect
+	github.com/multiformats/go-multicodec v0.9.1 // indirect
+	github.com/multiformats/go-multihash v0.2.3 // indirect
+	github.com/multiformats/go-multistream v0.6.1 // indirect
+	github.com/multiformats/go-varint v0.0.7 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
+	github.com/pion/datachannel v1.5.10 // indirect
+	github.com/pion/dtls/v2 v2.2.12 // indirect
+	github.com/pion/dtls/v3 v3.0.6 // indirect
+	github.com/pion/ice/v4 v4.0.10 // indirect
+	github.com/pion/interceptor v0.1.40 // indirect
+	github.com/pion/logging v0.2.3 // indirect
+	github.com/pion/mdns/v2 v2.0.7 // indirect
+	github.com/pion/randutil v0.1.0 // indirect
+	github.com/pion/rtcp v1.2.15 // indirect
+	github.com/pion/rtp v1.8.19 // indirect
+	github.com/pion/sctp v1.8.39 // indirect
+	github.com/pion/sdp/v3 v3.0.13 // indirect
+	github.com/pion/srtp/v3 v3.0.6 // indirect
+	github.com/pion/stun v0.6.1 // indirect
+	github.com/pion/stun/v3 v3.0.0 // indirect
+	github.com/pion/transport/v2 v2.2.10 // indirect
+	github.com/pion/transport/v3 v3.0.7 // indirect
+	github.com/pion/turn/v4 v4.0.2 // indirect
+	github.com/pion/webrtc/v4 v4.1.2 // indirect
+	github.com/prometheus/client_golang v1.22.0 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.64.0 // indirect
+	github.com/prometheus/procfs v0.16.1 // indirect
+	github.com/quic-go/qpack v0.5.1 // indirect
+	github.com/quic-go/quic-go v0.54.0 // indirect
+	github.com/quic-go/webtransport-go v0.9.0 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/wlynxg/anet v0.0.5 // indirect
+	go.uber.org/dig v1.19.0 // indirect
+	go.uber.org/fx v1.24.0 // indirect
+	go.uber.org/mock v0.5.2 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/crypto v0.39.0 // indirect
+	golang.org/x/exp v0.0.0-20250606033433-dcc06ee1d476 // indirect
+	golang.org/x/mod v0.25.0 // indirect
+	golang.org/x/net v0.41.0 // indirect
+	golang.org/x/sync v0.15.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/text v0.26.0 // indirect
+	golang.org/x/time v0.12.0 // indirect
+	golang.org/x/tools v0.34.0 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
+	lukechampine.com/blake3 v1.4.1 // indirect
+)

interop/autonatv2/go-peer/go.sum

@@ -0,0 +1,441 @@
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interop/autonatv2/go-peer/peer.id

@@ -0,0 +1 @@
+12D3KooWSnUDxXeeEnerD1Wf35R5b8bjTMzdAz838aDUUY8GJPGa

interop/autonatv2/go-peer/peer.key

@@ -0,0 +1,2 @@
+
@i
+(>%ËÁø‡®PM”ܘXE~§|#	õ“ýºØ®ü\íÇجåsqzïÔDSݺvöLË(±Úð…•(×

interop/autonatv2/go-peer/testautonatv2.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"crypto/rand"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+
+	libp2p "github.com/libp2p/go-libp2p"
+	crypto "github.com/libp2p/go-libp2p/core/crypto"
+	peer "github.com/libp2p/go-libp2p/core/peer"
+)
+
+const (
+	privKeyFile = "peer.key"
+	peerIDFile  = "peer.id"
+)
+
+func loadOrCreateIdentity() (crypto.PrivKey, peer.ID, error) {
+	if _, err := os.Stat(privKeyFile); err == nil {
+		// Load private key
+		data, err := ioutil.ReadFile(privKeyFile)
+		if err != nil {
+			return nil, "", fmt.Errorf("failed to read private key: %w", err)
+		}
+		priv, err := crypto.UnmarshalPrivateKey(data)
+		if err != nil {
+			return nil, "", fmt.Errorf("failed to unmarshal private key: %w", err)
+		}
+
+		// Load peer ID as string
+		peerData, err := ioutil.ReadFile(peerIDFile)
+		if err != nil {
+			return nil, "", fmt.Errorf("failed to read peer ID: %w", err)
+		}
+		pid, err := peer.Decode(string(peerData))
+		if err != nil {
+			return nil, "", fmt.Errorf("failed to decode peer ID: %w", err)
+		}
+
+		return priv, pid, nil
+	}
+
+	// Create new keypair
+	priv, pub, err := crypto.GenerateEd25519Key(rand.Reader)
+	if err != nil {
+		return nil, "", fmt.Errorf("failed to generate keypair: %w", err)
+	}
+	pid, err := peer.IDFromPublicKey(pub)
+	if err != nil {
+		return nil, "", fmt.Errorf("failed to derive peer ID: %w", err)
+	}
+
+	// Save private key
+	privBytes, err := crypto.MarshalPrivateKey(priv)
+	if err != nil {
+		return nil, "", fmt.Errorf("failed to marshal private key: %w", err)
+	}
+	if err := ioutil.WriteFile(privKeyFile, privBytes, 0600); err != nil {
+		return nil, "", fmt.Errorf("failed to write private key: %w", err)
+	}
+
+	// Save peer ID in canonical string form
+	if err := ioutil.WriteFile(peerIDFile, []byte(pid.String()), 0644); err != nil {
+		return nil, "", fmt.Errorf("failed to write peer ID: %w", err)
+	}
+
+	return priv, pid, nil
+}
+
+func main() {
+	priv, pid, err := loadOrCreateIdentity()
+	if err != nil {
+		log.Fatalf("Identity setup failed: %v", err)
+	}
+
+	h, err := libp2p.New(
+		libp2p.Identity(priv),
+		libp2p.EnableAutoNATv2(),
+		libp2p.ListenAddrStrings(
+			"/ip4/0.0.0.0/tcp/4040",
+			"/ip6/::/tcp/4040",
+		),
+	)
+	if err != nil {
+		log.Fatalf("Failed to create host: %v", err)
+	}
+	defer h.Close()
+
+	fmt.Println("Peer ID:", pid.String())
+	fmt.Println("Listen addresses:", h.Addrs())
+	fmt.Println("AutoNATv2 client started.")
+
+	select {}
+}
+

interop/autonatv2/nim-peer/config.nims

@@ -0,0 +1,4 @@
+# begin Nimble config (version 2)
+when withDir(thisDir(), system.fileExists("nimble.paths")):
+  include "nimble.paths"
+# end Nimble config

interop/autonatv2/nim-peer/nim_peer.nimble

@@ -0,0 +1,10 @@
+version = "0.1.0"
+author = "Status Research & Development Gmb"
+description = "AutoNATv2 peer for interop testing"
+license = "MIT"
+srcDir = "src"
+bin = @["nim_peer"]
+
+# Dependencies
+
+requires "nim >= 2.3.1", "libp2p"

interop/autonatv2/nim-peer/src/nim_peer.nim

@@ -0,0 +1,64 @@
+import net, os, chronos, libp2p
+import libp2p/protocols/connectivity/autonatv2/service
+import libp2p/protocols/connectivity/autonatv2/types
+
+proc waitForService(
+    host: string, port: Port, retries: int = 20, delay: Duration = 500.milliseconds
+): Future[bool] {.async.} =
+  for i in 0 ..< retries:
+    try:
+      var s = newSocket()
+      s.connect(host, port)
+      s.close()
+      return true
+    except OSError:
+      discard
+    await sleepAsync(delay)
+  return false
+
+proc main() {.async.} =
+  if paramCount() != 1:
+    quit("Usage: nim r src/nim_peer.nim <peerid>", 1)
+
+  # ensure go peer is started
+  await sleepAsync(3.seconds)
+
+  let dstPeerId = PeerId.init(paramStr(1)).get()
+
+  var src = SwitchBuilder
+    .new()
+    .withRng(newRng())
+    .withAddresses(@[MultiAddress.init("/ip4/0.0.0.0/tcp/3030").tryGet()])
+    .withAutonatV2Server()
+    .withAutonatV2(
+      serviceConfig = AutonatV2ServiceConfig.new(scheduleInterval = Opt.some(1.seconds))
+    )
+    .withTcpTransport()
+    .withYamux()
+    .withNoise()
+    .build()
+
+  let awaiter = newFuture[void]()
+
+  proc statusAndConfidenceHandler(
+      networkReachability: NetworkReachability, confidence: Opt[float]
+  ) {.async: (raises: [CancelledError]).} =
+    if networkReachability != NetworkReachability.Unknown and confidence.isSome() and
+        confidence.get() >= 0.3:
+      if not awaiter.finished:
+        awaiter.complete()
+
+  let service = cast[AutonatV2Service](src.services[1])
+  service.setStatusAndConfidenceHandler(statusAndConfidenceHandler)
+
+  await src.start()
+  await src.connect(dstPeerId, @[MultiAddress.init("/ip4/127.0.0.1/tcp/4040").get()])
+
+  await awaiter
+  echo service.networkReachability
+
+when isMainModule:
+  if waitFor(waitForService("127.0.0.1", Port(4040))):
+    waitFor(main())
+  else:
+    quit("timeout waiting for service", 1)

interop/hole-punching/Dockerfile

@@ -0,0 +1,19 @@
+# syntax=docker/dockerfile:1.5-labs
+FROM nimlang/nim:latest as builder
+
+WORKDIR /workspace
+
+COPY .pinned libp2p.nimble nim-libp2p/
+
+RUN --mount=type=cache,target=/var/cache/apt apt-get update && apt-get install -y libssl-dev
+
+RUN cd nim-libp2p && nimble install_pinned && nimble install redis -y
+
+COPY . nim-libp2p/
+
+RUN cd nim-libp2p && nim c --skipParentCfg --NimblePath:./nimbledeps/pkgs2 --mm:refc -d:chronicles_log_level=DEBUG -d:chronicles_default_output_device=stderr -d:release --threads:off --skipProjCfg -o:hole-punching-tests ./interop/hole-punching/hole_punching.nim
+
+FROM --platform=linux/amd64 debian:bullseye-slim
+RUN --mount=type=cache,target=/var/cache/apt apt-get update && apt-get install -y dnsutils jq curl tcpdump iproute2 libssl-dev
+COPY --from=builder /workspace/nim-libp2p/hole-punching-tests /usr/bin/hole-punch-client
+ENV RUST_BACKTRACE=1

interop/hole-punching/hole_punching.nim

@@ -0,0 +1,138 @@
+import std/[os, options, strformat, sequtils]
+import redis
+import chronos, chronicles
+import
+  ../../libp2p/[
+    builders,
+    switch,
+    multicodec,
+    observedaddrmanager,
+    services/hpservice,
+    services/autorelayservice,
+    protocols/connectivity/autonat/client as aclient,
+    protocols/connectivity/relay/client as rclient,
+    protocols/connectivity/relay/relay,
+    protocols/connectivity/autonat/service,
+    protocols/ping,
+  ]
+import ../../tests/[stubs/autonatclientstub, errorhelpers]
+
+logScope:
+  topics = "hp interop node"
+
+proc createSwitch(r: Relay = nil, hpService: Service = nil): Switch =
+  let rng = newRng()
+  var builder = SwitchBuilder
+    .new()
+    .withRng(rng)
+    .withAddresses(@[MultiAddress.init("/ip4/0.0.0.0/tcp/0").tryGet()])
+    .withObservedAddrManager(ObservedAddrManager.new(maxSize = 1, minCount = 1))
+    .withTcpTransport({ServerFlags.TcpNoDelay})
+    .withYamux()
+    .withAutonat()
+    .withNoise()
+
+  if hpService != nil:
+    builder = builder.withServices(@[hpService])
+
+  if r != nil:
+    builder = builder.withCircuitRelay(r)
+
+  let s = builder.build()
+  s.mount(Ping.new(rng = rng))
+  return s
+
+proc main() {.async.} =
+  let relayClient = RelayClient.new()
+  let autoRelayService = AutoRelayService.new(1, relayClient, nil, newRng())
+  let autonatClientStub = AutonatClientStub.new(expectedDials = 1)
+  autonatClientStub.answer = NotReachable
+  let autonatService = AutonatService.new(autonatClientStub, newRng(), maxQueueSize = 1)
+  let hpservice = HPService.new(autonatService, autoRelayService)
+
+  let
+    isListener = getEnv("MODE") == "listen"
+    switch = createSwitch(relayClient, hpservice)
+    auxSwitch = createSwitch()
+    redisClient = open("redis", 6379.Port)
+
+  debug "Connected to redis"
+
+  await switch.start()
+  await auxSwitch.start()
+
+  let relayAddr =
+    try:
+      redisClient.bLPop(@["RELAY_TCP_ADDRESS"], 0)
+    except Exception as e:
+      raise newException(CatchableError, e.msg)
+
+  debug "All relay addresses", relayAddr
+
+  # This is necessary to make the autonat service work. It will ask this peer for our reachability which the autonat
+  # client stub will answer NotReachable.
+  await switch.connect(auxSwitch.peerInfo.peerId, auxSwitch.peerInfo.addrs)
+
+  # Wait for autonat to be NotReachable
+  while autonatService.networkReachability != NetworkReachability.NotReachable:
+    await sleepAsync(100.milliseconds)
+
+  # This will trigger the autonat relay service to make a reservation.
+  let relayMA = MultiAddress.init(relayAddr[1]).tryGet()
+
+  try:
+    debug "Dialing relay...", relayMA
+    let relayId = await switch.connect(relayMA).wait(30.seconds)
+    debug "Connected to relay", relayId
+  except AsyncTimeoutError as e:
+    raise newException(CatchableError, "Connection to relay timed out: " & e.msg, e)
+
+  # Wait for our relay address to be published
+  while not switch.peerInfo.addrs.anyIt(it.contains(multiCodec("p2p-circuit")).tryGet()):
+    await sleepAsync(100.milliseconds)
+
+  if isListener:
+    let listenerPeerId = switch.peerInfo.peerId
+    discard redisClient.rPush("LISTEN_CLIENT_PEER_ID", $listenerPeerId)
+    debug "Pushed listener client peer id to redis", listenerPeerId
+
+    # Nothing to do anymore, wait to be killed
+    await sleepAsync(2.minutes)
+  else:
+    let listenerId =
+      try:
+        PeerId.init(redisClient.bLPop(@["LISTEN_CLIENT_PEER_ID"], 0)[1]).tryGet()
+      except Exception as e:
+        raise newException(CatchableError, "Exception init peer: " & e.msg, e)
+
+    debug "Got listener peer id", listenerId
+    let listenerRelayAddr = MultiAddress.init($relayMA & "/p2p-circuit").tryGet()
+
+    debug "Dialing listener relay address", listenerRelayAddr
+    await switch.connect(listenerId, @[listenerRelayAddr])
+
+    # wait for hole-punching to complete in the background
+    await sleepAsync(5000.milliseconds)
+
+    let conn = switch.connManager.selectMuxer(listenerId).connection
+    let channel = await switch.dial(listenerId, @[listenerRelayAddr], PingCodec)
+    let delay = await Ping.new().ping(channel)
+    await allFuturesThrowing(
+      channel.close(), conn.close(), switch.stop(), auxSwitch.stop()
+    )
+    echo &"""{{"rtt_to_holepunched_peer_millis":{delay.millis}}}"""
+
+try:
+  proc mainAsync(): Future[string] {.async.} =
+    # mainAsync wraps main and returns some value, as otherwise
+    # 'waitFor(fut)' has no type (or is ambiguous)
+    await main()
+    return "done"
+
+  discard waitFor(mainAsync().wait(4.minutes))
+except AsyncTimeoutError as e:
+  error "Program execution timed out", description = e.msg
+  quit(-1)
+except CatchableError as e:
+  error "Unexpected error", description = e.msg
+  quit(-1)

interop/transport/Dockerfile

@@ -0,0 +1,18 @@
+# syntax=docker/dockerfile:1.5-labs
+FROM nimlang/nim:latest as builder
+
+WORKDIR /app
+
+COPY .pinned libp2p.nimble nim-libp2p/
+
+RUN --mount=type=cache,target=/var/cache/apt apt-get update && apt-get install -y libssl-dev
+
+RUN cd nim-libp2p && nimble install_pinned && nimble install redis -y
+
+COPY . nim-libp2p/
+
+RUN \
+  cd nim-libp2p && \
+  nim c --skipProjCfg --skipParentCfg --NimblePath:./nimbledeps/pkgs2 -p:nim-libp2p --mm:refc -d:libp2p_quic_support -d:chronicles_log_level=WARN -d:chronicles_default_output_device=stderr --threads:off ./interop/transport/main.nim
+
+ENTRYPOINT ["/app/nim-libp2p/interop/transport/main"]

interop/transport/main.nim

@@ -42,29 +42,26 @@ proc main() {.async.} =
     discard switchBuilder.withTcpTransport().withAddress(
         MultiAddress.init("/ip4/" & ip & "/tcp/0").tryGet()
       )
-  of "ws":
-    discard switchBuilder
-      .withTransport(
-        proc(upgr: Upgrade): Transport =
-          WsTransport.new(upgr)
+  of "quic-v1":
+    discard switchBuilder.withQuicTransport().withAddress(
+        MultiAddress.init("/ip4/" & ip & "/udp/0/quic-v1").tryGet()
+      )
+  of "ws":
+    discard switchBuilder.withWsTransport().withAddress(
+        MultiAddress.init("/ip4/" & ip & "/tcp/0/ws").tryGet()
       )
-      .withAddress(MultiAddress.init("/ip4/" & ip & "/tcp/0/ws").tryGet())
   else:
     doAssert false
 
   case secureChannel
   of "noise":
     discard switchBuilder.withNoise()
-  else:
-    doAssert false
 
   case muxer
   of "yamux":
     discard switchBuilder.withYamux()
   of "mplex":
     discard switchBuilder.withMplex()
-  else:
-    doAssert false
 
   let
     rng = newRng()
@@ -83,7 +80,7 @@ proc main() {.async.} =
       try:
         redisClient.bLPop(@["listenerAddr"], testTimeout.seconds.int)[1]
       except Exception as e:
-        raise newException(CatchableError, e.msg)
+        raise newException(CatchableError, "Exception calling bLPop: " & e.msg, e)
     let
       remoteAddr = MultiAddress.init(listenerAddr).tryGet()
       dialingStart = Moment.now()
@@ -99,7 +96,18 @@ proc main() {.async.} =
         pingRTTMilllis: float(pingDelay.milliseconds),
       )
     )
-    quit(0)
 
-discard waitFor(main().withTimeout(testTimeout))
-quit(1)
+try:
+  proc mainAsync(): Future[string] {.async.} =
+    # mainAsync wraps main and returns some value, as otherwise
+    # 'waitFor(fut)' has no type (or is ambiguous)
+    await main()
+    return "done"
+
+  discard waitFor(mainAsync().wait(testTimeout))
+except AsyncTimeoutError as e:
+  error "Program execution timed out", description = e.msg
+  quit(-1)
+except CatchableError as e:
+  error "Unexpected error", description = e.msg
+  quit(-1)

interop/transport/version.json

@@ -3,7 +3,8 @@
   "containerImageID": "nim-libp2p-head",
   "transports": [
     "tcp",
-    "ws"
+    "ws",
+    "quic-v1"
   ],
   "secureChannels": [
     "noise"

libp2p.nim

@@ -17,7 +17,7 @@ when defined(nimdoc):
   ## stay backward compatible during the Major version, whereas private ones can
   ## change at each new Minor version.
   ##
-  ## If you're new to nim-libp2p, you can find a tutorial `here<https://status-im.github.io/nim-libp2p/docs/tutorial_1_connect/>`_
+  ## If you're new to nim-libp2p, you can find a tutorial `here<https://vacp2p.github.io/nim-libp2p/docs/tutorial_1_connect/>`_
   ## that can help you get started.
 
   # Import stuff for doc
@@ -70,3 +70,7 @@ else:
     minprotobuf, switch, peerid, peerinfo, connection, multiaddress, crypto, lpstream,
     bufferstream, muxer, mplex, transport, tcptransport, noise, errors, cid, multihash,
     multicodec, builders, pubsub
+
+  when defined(libp2p_quic_support):
+    import libp2p/transports/quictransport
+    export quictransport

libp2p.nimble

@@ -1,16 +1,17 @@
 mode = ScriptMode.Verbose
 
 packageName = "libp2p"
-version = "1.4.0"
+version = "1.13.0"
 author = "Status Research & Development GmbH"
 description = "LibP2P implementation"
 license = "MIT"
 skipDirs = @["tests", "examples", "Nim", "tools", "scripts", "docs"]
 
-requires "nim >= 1.6.0",
-  "nimcrypto >= 0.4.1", "dnsclient >= 0.3.0 & < 0.4.0", "bearssl >= 0.1.4",
-  "chronicles >= 0.10.2", "chronos >= 4.0.0", "metrics", "secp256k1", "stew#head",
-  "websock", "unittest2"
+requires "nim >= 2.0.0",
+  "nimcrypto >= 0.6.0 & < 0.7.0", "dnsclient >= 0.3.0 & < 0.4.0", "bearssl >= 0.2.5",
+  "chronicles >= 0.11.0 & < 0.12.0", "chronos >= 4.0.4", "metrics", "secp256k1",
+  "stew >= 0.4.0", "websock >= 0.2.0", "unittest2", "results", "quic >= 0.2.16",
+  "https://github.com/vacp2p/nim-jwt.git#18f8378de52b241f321c1f9ea905456e89b95c6f"
 
 let nimc = getEnv("NIMC", "nim") # Which nim compiler to use
 let lang = getEnv("NIMLANG", "c") # Which backend (c/cpp/js)
@@ -19,21 +20,17 @@ let verbose = getEnv("V", "") notin ["", "0"]
 
 let cfg =
   " --styleCheck:usages --styleCheck:error" &
-  (if verbose: "" else: " --verbosity:0 --hints:off") &
-  " --skipParentCfg --skipUserCfg -f" & " --threads:on --opt:speed"
+  (if verbose: "" else: " --verbosity:0 --hints:off") & " --skipUserCfg -f" &
+  " --threads:on --opt:speed"
 
 import hashes, strutils
 
-proc runTest(
-    filename: string, verify: bool = true, sign: bool = true, moreoptions: string = ""
-) =
+proc runTest(filename: string, moreoptions: string = "") =
   var excstr = nimc & " " & lang & " -d:debug " & cfg & " " & flags
-  excstr.add(" -d:libp2p_pubsub_sign=" & $sign)
-  excstr.add(" -d:libp2p_pubsub_verify=" & $verify)
   excstr.add(" " & moreoptions & " ")
   if getEnv("CICOV").len > 0:
     excstr &= " --nimcache:nimcache/" & filename & "-" & $excstr.hash
-  exec excstr & " -r " & " tests/" & filename
+  exec excstr & " -r -d:libp2p_quic_support -d:libp2p_autotls_support tests/" & filename
   rmFile "tests/" & filename.toExe
 
 proc buildSample(filename: string, run = false, extraFlags = "") =
@@ -52,58 +49,19 @@ proc tutorialToMd(filename: string) =
 task testnative, "Runs libp2p native tests":
   runTest("testnative")
 
-task testdaemon, "Runs daemon tests":
-  runTest("testdaemon")
-
-task testinterop, "Runs interop tests":
-  runTest("testinterop")
-
 task testpubsub, "Runs pubsub tests":
-  runTest(
-    "pubsub/testgossipinternal",
-    sign = false,
-    verify = false,
-    moreoptions = "-d:pubsub_internal_testing",
-  )
-  runTest("pubsub/testpubsub")
-  runTest("pubsub/testpubsub", sign = false, verify = false)
-  runTest(
-    "pubsub/testpubsub",
-    sign = false,
-    verify = false,
-    moreoptions = "-d:libp2p_pubsub_anonymize=true",
-  )
-
-task testpubsub_slim, "Runs pubsub tests":
-  runTest(
-    "pubsub/testgossipinternal",
-    sign = false,
-    verify = false,
-    moreoptions = "-d:pubsub_internal_testing",
-  )
-  runTest("pubsub/testpubsub")
+  runTest("pubsub/testpubsub", "-d:libp2p_gossipsub_1_4")
 
 task testfilter, "Run PKI filter test":
-  runTest("testpkifilter", moreoptions = "-d:libp2p_pki_schemes=\"secp256k1\"")
-  runTest("testpkifilter", moreoptions = "-d:libp2p_pki_schemes=\"secp256k1;ed25519\"")
-  runTest(
-    "testpkifilter", moreoptions = "-d:libp2p_pki_schemes=\"secp256k1;ed25519;ecnist\""
-  )
+  runTest("testpkifilter")
   runTest("testpkifilter", moreoptions = "-d:libp2p_pki_schemes=")
 
-task test, "Runs the test suite":
-  exec "nimble testnative"
-  exec "nimble testpubsub"
-  exec "nimble testdaemon"
-  exec "nimble testinterop"
-  exec "nimble testfilter"
-  exec "nimble examples_build"
+task testintegration, "Runs integraion tests":
+  runTest("testintegration")
 
-task test_slim, "Runs the (slimmed down) test suite":
-  exec "nimble testnative"
-  exec "nimble testpubsub_slim"
+task test, "Runs the test suite":
+  runTest("testall")
   exec "nimble testfilter"
-  exec "nimble examples_build"
 
 task website, "Build the website":
   tutorialToMd("examples/tutorial_1_connect.nim")
@@ -115,19 +73,12 @@ task website, "Build the website":
   tutorialToMd("examples/circuitrelay.nim")
   exec "mkdocs build"
 
-task examples_build, "Build the samples":
-  buildSample("directchat")
-  buildSample("helloworld", true)
-  buildSample("circuitrelay", true)
-  buildSample("tutorial_1_connect", true)
-  buildSample("tutorial_2_customproto", true)
-  buildSample("tutorial_3_protobuf", true)
-  buildSample("tutorial_4_gossipsub", true)
-  buildSample("tutorial_5_discovery", true)
-  exec "nimble install -y nimpng@#HEAD"
-    # this is to fix broken build on 1.7.3, remove it when nimpng version 0.3.2 or later is released
-  exec "nimble install -y nico"
-  buildSample("tutorial_6_game", false, "--styleCheck:off")
+task examples, "Build and run examples":
+  exec "nimble install -y nimpng"
+  exec "nimble install -y nico --passNim=--skipParentCfg"
+  buildSample("examples_build", false, "--styleCheck:off") # build only
+
+  buildSample("examples_run", true)
 
 # pin system
 # while nimble lockfile

libp2p/autotls/acme/api.nim

@@ -0,0 +1,533 @@
+import json, uri
+from times import DateTime, parse
+import chronos/apps/http/httpclient, results, chronicles
+
+import ./utils
+import ../../crypto/crypto
+import ../../crypto/rsa
+
+export ACMEError
+
+logScope:
+  topics = "libp2p acme api"
+
+const
+  LetsEncryptURL* = "https://acme-v02.api.letsencrypt.org"
+  LetsEncryptURLStaging* = "https://acme-staging-v02.api.letsencrypt.org"
+  Alg = "RS256"
+  DefaultChalCompletedRetries = 10
+  DefaultChalCompletedRetryTime = 1.seconds
+  DefaultFinalizeRetries = 10
+  DefaultFinalizeRetryTime = 1.seconds
+  DefaultRandStringSize = 256
+  ACMEHttpHeaders = [("Content-Type", "application/jose+json")]
+
+type Authorization* = string
+type Domain* = string
+type Kid* = string
+type Nonce* = string
+
+type ACMEDirectory* = object
+  newNonce*: string
+  newOrder*: string
+  newAccount*: string
+
+type ACMEApi* = ref object of RootObj
+  directory: Opt[ACMEDirectory]
+  session: HttpSessionRef
+  acmeServerURL*: Uri
+
+type HTTPResponse* = object
+  body*: JsonNode
+  headers*: HttpTable
+
+type JWK = object
+  kty: string
+  n: string
+  e: string
+
+# whether the request uses Kid or not
+type ACMERequestType = enum
+  ACMEJwkRequest
+  ACMEKidRequest
+
+type ACMERequestHeader = object
+  alg: string
+  typ: string
+  nonce: Nonce
+  url: string
+  case kind: ACMERequestType
+  of ACMEJwkRequest:
+    jwk: JWK
+  of ACMEKidRequest:
+    kid: Kid
+
+type Email = string
+
+type ACMERegisterRequest* = object
+  termsOfServiceAgreed: bool
+  contact: seq[Email]
+
+type ACMEAccountStatus = enum
+  valid = "valid"
+  deactivated = "deactivated"
+  revoked = "revoked"
+
+type ACMERegisterResponseBody = object
+  status*: ACMEAccountStatus
+
+type ACMERegisterResponse* = object
+  kid*: Kid
+  status*: ACMEAccountStatus
+
+type ACMEChallengeStatus* {.pure.} = enum
+  PENDING = "pending"
+  PROCESSING = "processing"
+  VALID = "valid"
+  INVALID = "invalid"
+
+type ACMEOrderStatus* {.pure.} = enum
+  PENDING = "pending"
+  READY = "ready"
+  PROCESSING = "processing"
+  VALID = "valid"
+  INVALID = "invalid"
+
+type ACMEChallengeType* {.pure.} = enum
+  DNS01 = "dns-01"
+  HTTP01 = "http-01"
+  TLSALPN01 = "tls-alpn-01"
+
+type ACMEChallengeToken* = string
+
+type ACMEChallenge* = object
+  url*: string
+  `type`*: ACMEChallengeType
+  status*: ACMEChallengeStatus
+  token*: ACMEChallengeToken
+
+type ACMEChallengeIdentifier = object
+  `type`: string
+  value: string
+
+type ACMEChallengeRequest = object
+  identifiers: seq[ACMEChallengeIdentifier]
+
+type ACMEChallengeResponseBody = object
+  status: ACMEOrderStatus
+  authorizations: seq[Authorization]
+  finalize: string
+
+type ACMEChallengeResponse* = object
+  status*: ACMEOrderStatus
+  authorizations*: seq[Authorization]
+  finalize*: string
+  order*: string
+
+type ACMEChallengeResponseWrapper* = object
+  finalize*: string
+  order*: string
+  dns01*: ACMEChallenge
+
+type ACMEAuthorizationsResponse* = object
+  challenges*: seq[ACMEChallenge]
+
+type ACMECompletedResponse* = object
+  url: string
+
+type ACMECheckKind* = enum
+  ACMEOrderCheck
+  ACMEChallengeCheck
+
+type ACMECheckResponse* = object
+  case kind: ACMECheckKind
+  of ACMEOrderCheck:
+    orderStatus: ACMEOrderStatus
+  of ACMEChallengeCheck:
+    chalStatus: ACMEChallengeStatus
+  retryAfter: Duration
+
+type ACMEFinalizeResponse* = object
+  status: ACMEOrderStatus
+
+type ACMEOrderResponse* = object
+  certificate: string
+  expires: string
+
+type ACMECertificateResponse* = object
+  rawCertificate*: string
+  certificateExpiry*: DateTime
+
+type ACMECertificate* = object
+  rawCertificate*: string
+  certificateExpiry*: DateTime
+  certKeyPair*: KeyPair
+
+when defined(libp2p_autotls_support):
+  import options, sequtils, strutils, jwt, bearssl/pem
+
+  template handleError*(msg: string, body: untyped): untyped =
+    try:
+      body
+    except ACMEError as exc:
+      raise exc
+    except CancelledError as exc:
+      raise exc
+    except JsonKindError as exc:
+      raise newException(ACMEError, msg & ": Failed to decode JSON", exc)
+    except ValueError as exc:
+      raise newException(ACMEError, msg & ": Failed to decode JSON", exc)
+    except HttpError as exc:
+      raise newException(ACMEError, msg & ": Failed to connect to ACME server", exc)
+    except CatchableError as exc:
+      raise newException(ACMEError, msg & ": Unexpected error", exc)
+
+  method post*(
+    self: ACMEApi, uri: Uri, payload: string
+  ): Future[HTTPResponse] {.
+    async: (raises: [ACMEError, HttpError, CancelledError]), base
+  .}
+
+  method get*(
+    self: ACMEApi, uri: Uri
+  ): Future[HTTPResponse] {.
+    async: (raises: [ACMEError, HttpError, CancelledError]), base
+  .}
+
+  proc new*(
+      T: typedesc[ACMEApi], acmeServerURL: Uri = parseUri(LetsEncryptURL)
+  ): ACMEApi =
+    let session = HttpSessionRef.new()
+
+    ACMEApi(
+      session: session, directory: Opt.none(ACMEDirectory), acmeServerURL: acmeServerURL
+    )
+
+  proc getDirectory(
+      self: ACMEApi
+  ): Future[ACMEDirectory] {.async: (raises: [ACMEError, CancelledError]).} =
+    handleError("getDirectory"):
+      self.directory.valueOr:
+        let acmeResponse = await self.get(self.acmeServerURL / "directory")
+        let directory = acmeResponse.body.to(ACMEDirectory)
+        self.directory = Opt.some(directory)
+        directory
+
+  method requestNonce*(
+      self: ACMEApi
+  ): Future[Nonce] {.async: (raises: [ACMEError, CancelledError]), base.} =
+    handleError("requestNonce"):
+      let acmeResponse = await self.get(parseUri((await self.getDirectory()).newNonce))
+      Nonce(acmeResponse.headers.keyOrError("Replay-Nonce"))
+
+  # TODO: save n and e in account so we don't have to recalculate every time
+  proc acmeHeader(
+      self: ACMEApi, uri: Uri, key: KeyPair, needsJwk: bool, kid: Opt[Kid]
+  ): Future[ACMERequestHeader] {.async: (raises: [ACMEError, CancelledError]).} =
+    if not needsJwk and kid.isNone():
+      raise newException(ACMEError, "kid not set")
+
+    if key.pubkey.scheme != PKScheme.RSA or key.seckey.scheme != PKScheme.RSA:
+      raise newException(ACMEError, "Unsupported signing key type")
+
+    let newNonce = await self.requestNonce()
+    if needsJwk:
+      let pubkey = key.pubkey.rsakey
+      let nArray = @(getArray(pubkey.buffer, pubkey.key.n, pubkey.key.nlen))
+      let eArray = @(getArray(pubkey.buffer, pubkey.key.e, pubkey.key.elen))
+      ACMERequestHeader(
+        kind: ACMEJwkRequest,
+        alg: Alg,
+        typ: "JWT",
+        nonce: newNonce,
+        url: $uri,
+        jwk: JWK(kty: "RSA", n: base64UrlEncode(nArray), e: base64UrlEncode(eArray)),
+      )
+    else:
+      ACMERequestHeader(
+        kind: ACMEKidRequest,
+        alg: Alg,
+        typ: "JWT",
+        nonce: newNonce,
+        url: $uri,
+        kid: kid.get(),
+      )
+
+  method post*(
+      self: ACMEApi, uri: Uri, payload: string
+  ): Future[HTTPResponse] {.
+      async: (raises: [ACMEError, HttpError, CancelledError]), base
+  .} =
+    let rawResponse = await HttpClientRequestRef
+    .post(self.session, $uri, body = payload, headers = ACMEHttpHeaders)
+    .get()
+    .send()
+    let body = await rawResponse.getResponseBody()
+    HTTPResponse(body: body, headers: rawResponse.headers)
+
+  method get*(
+      self: ACMEApi, uri: Uri
+  ): Future[HTTPResponse] {.
+      async: (raises: [ACMEError, HttpError, CancelledError]), base
+  .} =
+    let rawResponse = await HttpClientRequestRef.get(self.session, $uri).get().send()
+    let body = await rawResponse.getResponseBody()
+    HTTPResponse(body: body, headers: rawResponse.headers)
+
+  proc createSignedAcmeRequest(
+      self: ACMEApi,
+      uri: Uri,
+      payload: auto,
+      key: KeyPair,
+      needsJwk: bool = false,
+      kid: Opt[Kid] = Opt.none(Kid),
+  ): Future[string] {.async: (raises: [ACMEError, CancelledError]).} =
+    if key.pubkey.scheme != PKScheme.RSA or key.seckey.scheme != PKScheme.RSA:
+      raise newException(ACMEError, "Unsupported signing key type")
+
+    let acmeHeader = await self.acmeHeader(uri, key, needsJwk, kid)
+    handleError("createSignedAcmeRequest"):
+      var token = toJWT(%*{"header": acmeHeader, "claims": payload})
+      let derPrivKey = key.seckey.rsakey.getBytes.get
+      let pemPrivKey: string = pemEncode(derPrivKey, "PRIVATE KEY")
+      token.sign(pemPrivKey)
+      $token.toFlattenedJson()
+
+  proc requestRegister*(
+      self: ACMEApi, key: KeyPair
+  ): Future[ACMERegisterResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    let registerRequest = ACMERegisterRequest(termsOfServiceAgreed: true)
+    handleError("acmeRegister"):
+      let payload = await self.createSignedAcmeRequest(
+        parseUri((await self.getDirectory()).newAccount),
+        registerRequest,
+        key,
+        needsJwk = true,
+      )
+      let acmeResponse =
+        await self.post(parseUri((await self.getDirectory()).newAccount), payload)
+      let acmeResponseBody = acmeResponse.body.to(ACMERegisterResponseBody)
+
+      ACMERegisterResponse(
+        status: acmeResponseBody.status,
+        kid: acmeResponse.headers.keyOrError("location"),
+      )
+
+  proc requestNewOrder*(
+      self: ACMEApi, domains: seq[Domain], key: KeyPair, kid: Kid
+  ): Future[ACMEChallengeResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    # request challenge from ACME server
+    let orderRequest = ACMEChallengeRequest(
+      identifiers: domains.mapIt(ACMEChallengeIdentifier(`type`: "dns", value: it))
+    )
+    handleError("requestNewOrder"):
+      let payload = await self.createSignedAcmeRequest(
+        parseUri((await self.getDirectory()).newOrder),
+        orderRequest,
+        key,
+        kid = Opt.some(kid),
+      )
+      let acmeResponse =
+        await self.post(parseUri((await self.getDirectory()).newOrder), payload)
+      let challengeResponseBody = acmeResponse.body.to(ACMEChallengeResponseBody)
+      if challengeResponseBody.authorizations.len == 0:
+        raise newException(ACMEError, "Authorizations field is empty")
+      ACMEChallengeResponse(
+        status: challengeResponseBody.status,
+        authorizations: challengeResponseBody.authorizations,
+        finalize: challengeResponseBody.finalize,
+        order: acmeResponse.headers.keyOrError("location"),
+      )
+
+  proc requestAuthorizations*(
+      self: ACMEApi, authorizations: seq[Authorization], key: KeyPair, kid: Kid
+  ): Future[ACMEAuthorizationsResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    handleError("requestAuthorizations"):
+      doAssert authorizations.len > 0
+      let acmeResponse = await self.get(parseUri(authorizations[0]))
+      acmeResponse.body.to(ACMEAuthorizationsResponse)
+
+  proc requestChallenge*(
+      self: ACMEApi, domains: seq[Domain], key: KeyPair, kid: Kid
+  ): Future[ACMEChallengeResponseWrapper] {.
+      async: (raises: [ACMEError, CancelledError])
+  .} =
+    let orderResponse = await self.requestNewOrder(domains, key, kid)
+    if orderResponse.status != ACMEOrderStatus.PENDING and
+        orderResponse.status != ACMEOrderStatus.READY:
+      # ready is a valid status when renewing certs before expiry
+      raise
+        newException(ACMEError, "Invalid new order status: " & $orderResponse.status)
+
+    let authorizationsResponse =
+      await self.requestAuthorizations(orderResponse.authorizations, key, kid)
+    if authorizationsResponse.challenges.len == 0:
+      raise newException(ACMEError, "No challenges received")
+
+    return ACMEChallengeResponseWrapper(
+      finalize: orderResponse.finalize,
+      order: orderResponse.order,
+      dns01: authorizationsResponse.challenges.filterIt(
+        it.`type` == ACMEChallengeType.DNS01
+      )[0],
+        # getting the first element is safe since we checked that authorizationsResponse.challenges.len != 0
+    )
+
+  proc requestCheck*(
+      self: ACMEApi, checkURL: Uri, checkKind: ACMECheckKind, key: KeyPair, kid: Kid
+  ): Future[ACMECheckResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    handleError("requestCheck"):
+      let acmeResponse = await self.get(checkURL)
+      let retryAfter =
+        try:
+          parseInt(acmeResponse.headers.keyOrError("Retry-After")).seconds
+        except ValueError:
+          DefaultChalCompletedRetryTime
+
+      case checkKind
+      of ACMEOrderCheck:
+        try:
+          ACMECheckResponse(
+            kind: checkKind,
+            orderStatus: parseEnum[ACMEOrderStatus](acmeResponse.body["status"].getStr),
+            retryAfter: retryAfter,
+          )
+        except ValueError:
+          raise newException(
+            ACMEError, "Invalid order status: " & acmeResponse.body["status"].getStr
+          )
+      of ACMEChallengeCheck:
+        try:
+          ACMECheckResponse(
+            kind: checkKind,
+            chalStatus:
+              parseEnum[ACMEChallengeStatus](acmeResponse.body["status"].getStr),
+            retryAfter: retryAfter,
+          )
+        except ValueError:
+          raise newException(
+            ACMEError, "Invalid order status: " & acmeResponse.body["status"].getStr
+          )
+
+  proc sendChallengeCompleted*(
+      self: ACMEApi, chalURL: Uri, key: KeyPair, kid: Kid
+  ): Future[ACMECompletedResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    handleError("sendChallengeCompleted"):
+      let payload =
+        await self.createSignedAcmeRequest(chalURL, %*{}, key, kid = Opt.some(kid))
+      let acmeResponse = await self.post(chalURL, payload)
+      acmeResponse.body.to(ACMECompletedResponse)
+
+  proc checkChallengeCompleted*(
+      self: ACMEApi,
+      checkURL: Uri,
+      key: KeyPair,
+      kid: Kid,
+      retries: int = DefaultChalCompletedRetries,
+  ): Future[bool] {.async: (raises: [ACMEError, CancelledError]).} =
+    for i in 0 .. retries:
+      let checkResponse =
+        await self.requestCheck(checkURL, ACMEChallengeCheck, key, kid)
+      case checkResponse.chalStatus
+      of ACMEChallengeStatus.PENDING:
+        await sleepAsync(checkResponse.retryAfter) # try again after some delay
+      of ACMEChallengeStatus.VALID:
+        return true
+      else:
+        raise newException(
+          ACMEError,
+          "Failed challenge completion: expected 'valid', got '" &
+            $checkResponse.chalStatus & "'",
+        )
+    return false
+
+  proc completeChallenge*(
+      self: ACMEApi,
+      chalURL: Uri,
+      key: KeyPair,
+      kid: Kid,
+      retries: int = DefaultChalCompletedRetries,
+  ): Future[bool] {.async: (raises: [ACMEError, CancelledError]).} =
+    let completedResponse = await self.sendChallengeCompleted(chalURL, key, kid)
+    # check until acme server is done (poll validation)
+    return await self.checkChallengeCompleted(chalURL, key, kid, retries = retries)
+
+  proc requestFinalize*(
+      self: ACMEApi,
+      domain: Domain,
+      finalize: Uri,
+      certKeyPair: KeyPair,
+      key: KeyPair,
+      kid: Kid,
+  ): Future[ACMEFinalizeResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    handleError("requestFinalize"):
+      let payload = await self.createSignedAcmeRequest(
+        finalize, %*{"csr": createCSR(domain, certKeyPair)}, key, kid = Opt.some(kid)
+      )
+      let acmeResponse = await self.post(finalize, payload)
+      # server responds with updated order response
+      acmeResponse.body.to(ACMEFinalizeResponse)
+
+  proc checkCertFinalized*(
+      self: ACMEApi,
+      order: Uri,
+      key: KeyPair,
+      kid: Kid,
+      retries: int = DefaultChalCompletedRetries,
+  ): Future[bool] {.async: (raises: [ACMEError, CancelledError]).} =
+    for i in 0 .. retries:
+      let checkResponse = await self.requestCheck(order, ACMEOrderCheck, key, kid)
+      case checkResponse.orderStatus
+      of ACMEOrderStatus.VALID:
+        return true
+      of ACMEOrderStatus.PROCESSING:
+        await sleepAsync(checkResponse.retryAfter) # try again after some delay
+      else:
+        error "Failed certificate finalization",
+          description = "expected 'valid', got '" & $checkResponse.orderStatus & "'"
+        return false # do not try again
+
+    return false
+
+  proc certificateFinalized*(
+      self: ACMEApi,
+      domain: Domain,
+      finalize: Uri,
+      order: Uri,
+      certKeyPair: KeyPair,
+      key: KeyPair,
+      kid: Kid,
+      retries: int = DefaultFinalizeRetries,
+  ): Future[bool] {.async: (raises: [ACMEError, CancelledError]).} =
+    let finalizeResponse =
+      await self.requestFinalize(domain, finalize, certKeyPair, key, kid)
+    # keep checking order until cert is valid (done)
+    return await self.checkCertFinalized(order, key, kid, retries = retries)
+
+  proc requestGetOrder*(
+      self: ACMEApi, order: Uri
+  ): Future[ACMEOrderResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    handleError("requestGetOrder"):
+      let acmeResponse = await self.get(order)
+      acmeResponse.body.to(ACMEOrderResponse)
+
+  proc downloadCertificate*(
+      self: ACMEApi, order: Uri
+  ): Future[ACMECertificateResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    let orderResponse = await self.requestGetOrder(order)
+
+    handleError("downloadCertificate"):
+      let rawResponse = await HttpClientRequestRef
+      .get(self.session, orderResponse.certificate)
+      .get()
+      .send()
+      ACMECertificateResponse(
+        rawCertificate: bytesToString(await rawResponse.getBodyBytes()),
+        certificateExpiry: parse(orderResponse.expires, "yyyy-MM-dd'T'HH:mm:ss'Z'"),
+      )
+
+  proc close*(self: ACMEApi) {.async: (raises: [CancelledError]).} =
+    await self.session.closeWait()
+
+else:
+  {.hint: "autotls disabled. Use -d:libp2p_autotls_support".}

libp2p/autotls/acme/client.nim

@@ -0,0 +1,98 @@
+# Nim-Libp2p
+# Copyright (c) 2025 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT))
+# at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+{.push raises: [].}
+
+import chronicles
+import ../../crypto/crypto
+import ./api
+
+export api
+
+type KeyAuthorization* = string
+
+type ACMEClient* = ref object
+  api: ACMEApi
+  key*: KeyPair
+  kid*: Kid
+
+logScope:
+  topics = "libp2p acme client"
+
+when defined(libp2p_autotls_support):
+  import uri
+  import chronos, results, stew/byteutils
+  import ../../crypto/rsa
+  import ./utils
+
+  proc new*(
+      T: typedesc[ACMEClient],
+      rng: ref HmacDrbgContext = newRng(),
+      api: ACMEApi = ACMEApi.new(acmeServerURL = parseUri(LetsEncryptURL)),
+      key: Opt[KeyPair] = Opt.none(KeyPair),
+      kid: Kid = Kid(""),
+  ): T {.raises: [].} =
+    let key = key.valueOr:
+      KeyPair.random(PKScheme.RSA, rng[]).get()
+    T(api: api, key: key, kid: kid)
+
+  proc getOrInitKid*(
+      self: ACMEClient
+  ): Future[Kid] {.async: (raises: [ACMEError, CancelledError]).} =
+    if self.kid.len == 0:
+      let registerResponse = await self.api.requestRegister(self.key)
+      self.kid = registerResponse.kid
+    return self.kid
+
+  proc genKeyAuthorization*(self: ACMEClient, token: string): KeyAuthorization =
+    base64UrlEncode(@(sha256.digest((token & "." & thumbprint(self.key)).toBytes).data))
+
+  proc getChallenge*(
+      self: ACMEClient, domains: seq[api.Domain]
+  ): Future[ACMEChallengeResponseWrapper] {.
+      async: (raises: [ACMEError, CancelledError])
+  .} =
+    await self.api.requestChallenge(domains, self.key, await self.getOrInitKid())
+
+  proc getCertificate*(
+      self: ACMEClient,
+      domain: api.Domain,
+      certKeyPair: KeyPair,
+      challenge: ACMEChallengeResponseWrapper,
+  ): Future[ACMECertificateResponse] {.async: (raises: [ACMEError, CancelledError]).} =
+    let chalURL = parseUri(challenge.dns01.url)
+    let orderURL = parseUri(challenge.order)
+    let finalizeURL = parseUri(challenge.finalize)
+    trace "Sending challenge completed notification"
+    discard await self.api.sendChallengeCompleted(
+      chalURL, self.key, await self.getOrInitKid()
+    )
+
+    trace "Checking for completed challenge"
+    let completed = await self.api.checkChallengeCompleted(
+      chalURL, self.key, await self.getOrInitKid()
+    )
+    if not completed:
+      raise newException(
+        ACMEError, "Failed to signal ACME server about challenge completion"
+      )
+
+    trace "Waiting for certificate to be finalized"
+    let finalized = await self.api.certificateFinalized(
+      domain, finalizeURL, orderURL, certKeyPair, self.key, await self.getOrInitKid()
+    )
+    if not finalized:
+      raise
+        newException(ACMEError, "Failed to finalize certificate for domain " & domain)
+
+    trace "Downloading certificate"
+    await self.api.downloadCertificate(orderURL)
+
+  proc close*(self: ACMEClient) {.async: (raises: [CancelledError]).} =
+    await self.api.close()

libp2p/autotls/acme/mockapi.nim

@@ -0,0 +1,40 @@
+import uri
+import chronos, chronos/apps/http/httpclient, json
+import ./api, ./utils
+
+export api
+
+type MockACMEApi* = ref object of ACMEApi
+  mockedResponses*: seq[HTTPResponse]
+
+proc new*(
+    T: typedesc[MockACMEApi]
+): Future[T] {.async: (raises: [ACMEError, CancelledError]).} =
+  let directory = ACMEDirectory(
+    newNonce: LetsEncryptURL & "/new-nonce",
+    newOrder: LetsEncryptURL & "/new-order",
+    newAccount: LetsEncryptURL & "/new-account",
+  )
+  MockACMEApi(
+    session: HttpSessionRef.new(),
+    directory: Opt.some(directory),
+    acmeServerURL: parseUri(LetsEncryptURL),
+  )
+
+when defined(libp2p_autotls_support):
+  method requestNonce*(
+      self: MockACMEApi
+  ): Future[Nonce] {.async: (raises: [ACMEError, CancelledError]).} =
+    return $self.acmeServerURL & "/acme/1234"
+
+  method post*(
+      self: MockACMEApi, uri: Uri, payload: string
+  ): Future[HTTPResponse] {.async: (raises: [ACMEError, HttpError, CancelledError]).} =
+    result = self.mockedResponses[0]
+    self.mockedResponses.delete(0)
+
+  method get*(
+      self: MockACMEApi, uri: Uri
+  ): Future[HTTPResponse] {.async: (raises: [ACMEError, HttpError, CancelledError]).} =
+    result = self.mockedResponses[0]
+    self.mockedResponses.delete(0)

libp2p/autotls/acme/utils.nim

@@ -0,0 +1,73 @@
+import ../../errors
+
+type ACMEError* = object of LPError
+
+when defined(libp2p_autotls_support):
+  import base64, strutils, chronos/apps/http/httpclient, json
+  import ../../transports/tls/certificate_ffi
+  import ../../transports/tls/certificate
+  import ../../crypto/crypto
+  import ../../crypto/rsa
+
+  proc keyOrError*(table: HttpTable, key: string): string {.raises: [ValueError].} =
+    if not table.contains(key):
+      raise newException(ValueError, "key " & key & " not present in headers")
+    table.getString(key)
+
+  proc base64UrlEncode*(data: seq[byte]): string =
+    ## Encodes data using base64url (RFC 4648 §5) — no padding, URL-safe
+    var encoded = base64.encode(data, safe = true)
+    encoded.removeSuffix("=")
+    encoded.removeSuffix("=")
+    return encoded
+
+  proc thumbprint*(key: KeyPair): string =
+    doAssert key.seckey.scheme == PKScheme.RSA, "unsupported keytype"
+    let pubkey = key.pubkey.rsakey
+    let nArray = @(getArray(pubkey.buffer, pubkey.key.n, pubkey.key.nlen))
+    let eArray = @(getArray(pubkey.buffer, pubkey.key.e, pubkey.key.elen))
+
+    let n = base64UrlEncode(nArray)
+    let e = base64UrlEncode(eArray)
+    let keyJson = %*{"e": e, "kty": "RSA", "n": n}
+    let digest = sha256.digest($keyJson)
+    return base64UrlEncode(@(digest.data))
+
+  proc getResponseBody*(
+      response: HttpClientResponseRef
+  ): Future[JsonNode] {.async: (raises: [ACMEError, CancelledError]).} =
+    try:
+      let bodyBytes = await response.getBodyBytes()
+      if bodyBytes.len > 0:
+        return bytesToString(bodyBytes).parseJson()
+      return %*{} # empty body
+    except CancelledError as exc:
+      raise exc
+    except CatchableError as exc:
+      raise newException(
+        ACMEError, "Unexpected error occurred while getting body bytes", exc
+      )
+    except Exception as exc: # this is required for nim 1.6
+      raise newException(
+        ACMEError, "Unexpected error occurred while getting body bytes", exc
+      )
+
+  proc createCSR*(
+      domain: string, certKeyPair: KeyPair
+  ): string {.raises: [ACMEError].} =
+    var certKey: cert_key_t
+    var certCtx: cert_context_t
+    var derCSR: ptr cert_buffer = nil
+
+    # convert KeyPair to cert_key_t
+    let rawSeckey: seq[byte] = certKeyPair.seckey.getRawBytes.valueOr:
+      raise newException(ACMEError, "Failed to get seckey raw bytes (DER)")
+    let seckeyBuffer = rawSeckey.toCertBuffer()
+    if cert_new_key_t(seckeyBuffer.unsafeAddr, certKey.addr) != CERT_SUCCESS:
+      raise newException(ACMEError, "Failed to convert key pair to cert_key_t")
+
+    # create CSR
+    if cert_signing_req(domain.cstring, certKey, derCSR.addr) != CERT_SUCCESS:
+      raise newException(ACMEError, "Failed to create CSR")
+
+    base64.encode(derCSR.toSeq, safe = true)

libp2p/autotls/mockservice.nim

@@ -0,0 +1,33 @@
+when defined(libp2p_autotls_support):
+  import ./service, ./acme/client, ../peeridauth/client
+
+  import ../crypto/crypto, ../crypto/rsa, websock/websock
+
+  type MockAutotlsService* = ref object of AutotlsService
+    mockedCert*: TLSCertificate
+    mockedKey*: TLSPrivateKey
+
+  proc new*(
+      T: typedesc[MockAutotlsService],
+      rng: ref HmacDrbgContext = newRng(),
+      config: AutotlsConfig = AutotlsConfig.new(),
+  ): T =
+    T(
+      acmeClient:
+        ACMEClient.new(api = ACMEApi.new(acmeServerURL = config.acmeServerURL)),
+      brokerClient: PeerIDAuthClient.new(),
+      bearer: Opt.none(BearerToken),
+      cert: Opt.none(AutotlsCert),
+      certReady: newAsyncEvent(),
+      running: newAsyncEvent(),
+      config: config,
+      rng: rng,
+    )
+
+  method getCertWhenReady*(
+      self: MockAutotlsService
+  ): Future[AutotlsCert] {.async: (raises: [AutoTLSError, CancelledError]).} =
+    AutotlsCert.new(self.mockedCert, self.mockedKey, Moment.now)
+
+  method setup*(self: MockAutotlsService) {.base, async.} =
+    self.running.fire()

libp2p/autotls/service.nim

@@ -0,0 +1,295 @@
+# Nim-Libp2p
+# Copyright (c) 2025 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT))
+# at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+{.push raises: [].}
+{.push public.}
+
+import chronos, chronicles, net, results
+import chronos/apps/http/httpclient, bearssl/rand
+
+import
+  ./acme/client,
+  ./utils,
+  ../crypto/crypto,
+  ../nameresolving/nameresolver,
+  ../peeridauth/client,
+  ../switch,
+  ../peerinfo,
+  ../wire
+
+logScope:
+  topics = "libp2p autotls"
+
+export LetsEncryptURL, AutoTLSError
+
+const
+  DefaultDnsServers* =
+    @[
+      initTAddress("1.1.1.1:53"),
+      initTAddress("1.0.0.1:53"),
+      initTAddress("[2606:4700:4700::1111]:53"),
+    ]
+  DefaultRenewCheckTime* = 1.hours
+  DefaultRenewBufferTime = 1.hours
+
+  DefaultIssueRetries = 3
+  DefaultIssueRetryTime = 1.seconds
+
+  AutoTLSBroker* = "registration.libp2p.direct"
+  AutoTLSDNSServer* = "libp2p.direct"
+  HttpOk* = 200
+  HttpCreated* = 201
+  # NoneIp is needed because nim 1.6.16 can't do proper generic inference
+  NoneIp = Opt.none(IpAddress)
+
+type SigParam = object
+  k: string
+  v: seq[byte]
+
+type AutotlsCert* = ref object
+  cert*: TLSCertificate
+  privkey*: TLSPrivateKey
+  expiry*: Moment
+
+type AutotlsConfig* = ref object
+  acmeServerURL*: Uri
+  nameResolver*: NameResolver
+  ipAddress: Opt[IpAddress]
+  renewCheckTime*: Duration
+  renewBufferTime*: Duration
+  issueRetries*: int
+  issueRetryTime*: Duration
+
+type AutotlsService* = ref object of Service
+  acmeClient*: ACMEClient
+  brokerClient*: PeerIDAuthClient
+  bearer*: Opt[BearerToken]
+  cert*: Opt[AutotlsCert]
+  certReady*: AsyncEvent
+  running*: AsyncEvent
+  config*: AutotlsConfig
+  managerFut: Future[void]
+  peerInfo: PeerInfo
+  rng*: ref HmacDrbgContext
+
+when defined(libp2p_autotls_support):
+  import json, sequtils, bearssl/pem
+
+  import
+    ../crypto/rsa,
+    ../utils/heartbeat,
+    ../transports/transport,
+    ../utils/ipaddr,
+    ../transports/tcptransport,
+    ../nameresolving/dnsresolver
+
+  proc new*(
+      T: typedesc[AutotlsCert],
+      cert: TLSCertificate,
+      privkey: TLSPrivateKey,
+      expiry: Moment,
+  ): T =
+    T(cert: cert, privkey: privkey, expiry: expiry)
+
+  method getCertWhenReady*(
+      self: AutotlsService
+  ): Future[AutotlsCert] {.base, async: (raises: [AutoTLSError, CancelledError]).} =
+    await self.certReady.wait()
+    return self.cert.get
+
+  proc new*(
+      T: typedesc[AutotlsConfig],
+      ipAddress: Opt[IpAddress] = NoneIp,
+      nameServers: seq[TransportAddress] = DefaultDnsServers,
+      acmeServerURL: Uri = parseUri(LetsEncryptURL),
+      renewCheckTime: Duration = DefaultRenewCheckTime,
+      renewBufferTime: Duration = DefaultRenewBufferTime,
+      issueRetries: int = DefaultIssueRetries,
+      issueRetryTime: Duration = DefaultIssueRetryTime,
+  ): T =
+    T(
+      nameResolver: DnsResolver.new(nameServers),
+      acmeServerURL: acmeServerURL,
+      ipAddress: ipAddress,
+      renewCheckTime: renewCheckTime,
+      renewBufferTime: renewBufferTime,
+      issueRetries: issueRetries,
+      issueRetryTime: issueRetryTime,
+    )
+
+  proc new*(
+      T: typedesc[AutotlsService],
+      rng: ref HmacDrbgContext = newRng(),
+      config: AutotlsConfig = AutotlsConfig.new(),
+  ): T =
+    T(
+      acmeClient:
+        ACMEClient.new(api = ACMEApi.new(acmeServerURL = config.acmeServerURL)),
+      brokerClient: PeerIDAuthClient.new(),
+      bearer: Opt.none(BearerToken),
+      cert: Opt.none(AutotlsCert),
+      certReady: newAsyncEvent(),
+      running: newAsyncEvent(),
+      config: config,
+      managerFut: nil,
+      peerInfo: nil,
+      rng: rng,
+    )
+
+  method setup*(
+      self: AutotlsService, switch: Switch
+  ): Future[bool] {.async: (raises: [CancelledError]).} =
+    trace "Setting up AutotlsService"
+    let hasBeenSetup = await procCall Service(self).setup(switch)
+    if hasBeenSetup:
+      if self.config.ipAddress.isNone():
+        try:
+          self.config.ipAddress = Opt.some(getPublicIPAddress())
+        except ValueError as exc:
+          error "Failed to get public IP address", err = exc.msg
+          return false
+        except OSError as exc:
+          error "Failed to get public IP address", err = exc.msg
+          return false
+      self.managerFut = self.run(switch)
+    return hasBeenSetup
+
+  method issueCertificate(
+      self: AutotlsService
+  ): Future[bool] {.
+      base, async: (raises: [AutoTLSError, ACMEError, PeerIDAuthError, CancelledError])
+  .} =
+    trace "Issuing certificate"
+
+    if self.peerInfo.isNil():
+      error "Cannot issue new certificate: peerInfo not set"
+      return false
+
+    # generate autotls domain string: "*.{peerID}.libp2p.direct"
+    let baseDomain =
+      api.Domain(encodePeerId(self.peerInfo.peerId) & "." & AutoTLSDNSServer)
+    let domain = api.Domain("*." & baseDomain)
+
+    let acmeClient = self.acmeClient
+
+    trace "Requesting ACME challenge"
+    let dns01Challenge = await acmeClient.getChallenge(@[domain])
+    trace "Generating key authorization"
+    let keyAuth = acmeClient.genKeyAuthorization(dns01Challenge.dns01.token)
+
+    let addrs = await self.peerInfo.expandAddrs()
+    if addrs.len == 0:
+      error "Unable to authenticate with broker: no addresses"
+      return false
+
+    let strMultiaddresses: seq[string] = addrs.mapIt($it)
+    let payload = %*{"value": keyAuth, "addresses": strMultiaddresses}
+    let registrationURL = parseUri("https://" & AutoTLSBroker & "/v1/_acme-challenge")
+
+    trace "Sending challenge to AutoTLS broker"
+    let (bearer, response) =
+      await self.brokerClient.send(registrationURL, self.peerInfo, payload, self.bearer)
+    if self.bearer.isNone():
+      # save bearer token for future
+      self.bearer = Opt.some(bearer)
+    if response.status != HttpOk:
+      error "Failed to authenticate with AutoTLS Broker at " & AutoTLSBroker
+      debug "Broker message",
+        body = bytesToString(response.body), peerinfo = self.peerInfo
+      return false
+
+    let dashedIpAddr = ($self.config.ipAddress.get()).replace(".", "-")
+    let acmeChalDomain = api.Domain("_acme-challenge." & baseDomain)
+    let ip4Domain = api.Domain(dashedIpAddr & "." & baseDomain)
+    debug "Waiting for DNS record to be set", ip = ip4Domain, acme = acmeChalDomain
+    let dnsSet = await checkDNSRecords(
+      self.config.nameResolver, self.config.ipAddress.get(), baseDomain, keyAuth
+    )
+    if not dnsSet:
+      error "DNS records not set"
+      return false
+
+    trace "Notifying challenge completion to ACME and downloading cert"
+    let certKeyPair = KeyPair.random(PKScheme.RSA, self.rng[]).get()
+
+    let certificate =
+      await acmeClient.getCertificate(domain, certKeyPair, dns01Challenge)
+
+    let derPrivKey = certKeyPair.seckey.rsakey.getBytes.valueOr:
+      raise newException(AutoTLSError, "Unable to get TLS private key")
+    let pemPrivKey: string = derPrivKey.pemEncode("PRIVATE KEY")
+    debug "autotls cert", pemPrivKey = pemPrivKey, cert = certificate.rawCertificate
+
+    trace "Installing certificate"
+    let newCert =
+      try:
+        AutotlsCert.new(
+          TLSCertificate.init(certificate.rawCertificate),
+          TLSPrivateKey.init(pemPrivKey),
+          asMoment(certificate.certificateExpiry),
+        )
+      except TLSStreamProtocolError:
+        error "Could not parse downloaded certificates"
+        return false
+    self.cert = Opt.some(newCert)
+    self.certReady.fire()
+    trace "Certificate installed"
+    true
+
+  proc hasTcpStarted(switch: Switch): bool =
+    switch.transports.filterIt(it of TcpTransport and it.running).len == 0
+
+  proc tryIssueCertificate(self: AutotlsService) {.async: (raises: [CancelledError]).} =
+    for _ in 0 ..< self.config.issueRetries:
+      try:
+        if await self.issueCertificate():
+          return
+      except CancelledError as exc:
+        raise exc
+      except CatchableError as exc:
+        error "Failed to issue certificate", err = exc.msg
+      await sleepAsync(self.config.issueRetryTime)
+    error "Failed to issue certificate"
+
+  method run*(
+      self: AutotlsService, switch: Switch
+  ) {.async: (raises: [CancelledError]).} =
+    trace "Starting Autotls management"
+    self.running.fire()
+    self.peerInfo = switch.peerInfo
+
+    # ensure that there's at least one TcpTransport running
+    # for communicating with autotls broker
+    if switch.hasTcpStarted():
+      error "Could not find a running TcpTransport in switch"
+      return
+
+    heartbeat "Certificate Management", self.config.renewCheckTime:
+      if self.cert.isNone():
+        await self.tryIssueCertificate()
+
+      # AutotlsService will renew the cert 1h before it expires
+      let cert = self.cert.get
+      let waitTime = cert.expiry - Moment.now - self.config.renewBufferTime
+      if waitTime <= self.config.renewBufferTime:
+        await self.tryIssueCertificate()
+
+  method stop*(
+      self: AutotlsService, switch: Switch
+  ): Future[bool] {.async: (raises: [CancelledError]).} =
+    let hasBeenStopped = await procCall Service(self).stop(switch)
+    if hasBeenStopped:
+      if not self.acmeClient.isNil():
+        await self.acmeClient.close()
+      if not self.brokerClient.isNil():
+        await self.brokerClient.close()
+      if not self.managerFut.isNil():
+        await self.managerFut.cancelAndWait()
+        self.managerFut = nil
+    return hasBeenStopped

libp2p/autotls/utils.nim

@@ -0,0 +1,82 @@
+# Nim-Libp2p
+# Copyright (c) 2025 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT))
+# at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+{.push raises: [].}
+{.push public.}
+
+import chronos, chronicles
+import ../errors
+
+logScope:
+  topics = "libp2p utils"
+
+const
+  DefaultDnsRetries = 3
+  DefaultDnsRetryTime = 1.seconds
+
+type AutoTLSError* = object of LPError
+
+when defined(libp2p_autotls_support):
+  import strutils
+  from times import DateTime, toTime, toUnix
+  import stew/base36
+  import
+    ../peerid,
+    ../multihash,
+    ../cid,
+    ../multicodec,
+    ../nameresolving/nameresolver,
+    ./acme/client
+
+  proc asMoment*(dt: DateTime): Moment =
+    let unixTime: int64 = dt.toTime.toUnix
+    return Moment.init(unixTime, Second)
+
+  proc encodePeerId*(peerId: PeerId): string {.raises: [AutoTLSError].} =
+    var mh: MultiHash
+    let decodeResult = MultiHash.decode(peerId.data, mh)
+    if decodeResult.isErr() or decodeResult.get() == -1:
+      raise
+        newException(AutoTLSError, "Failed to decode PeerId: invalid multihash format")
+
+    let cidResult = Cid.init(CIDv1, multiCodec("libp2p-key"), mh)
+    if cidResult.isErr():
+      raise newException(AutoTLSError, "Failed to initialize CID from multihash")
+
+    return Base36.encode(cidResult.get().data.buffer)
+
+  proc checkDNSRecords*(
+      nameResolver: NameResolver,
+      ipAddress: IpAddress,
+      baseDomain: api.Domain,
+      keyAuth: KeyAuthorization,
+      retries: int = DefaultDnsRetries,
+  ): Future[bool] {.async: (raises: [AutoTLSError, CancelledError]).} =
+    # if my ip address is 100.10.10.3 then the ip4Domain will be:
+    #     100-10-10-3.{peerIdBase36}.libp2p.direct
+    # and acme challenge TXT domain will be:
+    #     _acme-challenge.{peerIdBase36}.libp2p.direct
+    let dashedIpAddr = ($ipAddress).replace(".", "-")
+    let acmeChalDomain = api.Domain("_acme-challenge." & baseDomain)
+    let ip4Domain = api.Domain(dashedIpAddr & "." & baseDomain)
+
+    var txt: seq[string]
+    var ip4: seq[TransportAddress]
+    for _ in 0 .. retries:
+      txt = await nameResolver.resolveTxt(acmeChalDomain)
+      try:
+        ip4 = await nameResolver.resolveIp(ip4Domain, 0.Port)
+      except CancelledError as exc:
+        raise exc
+      except CatchableError as exc:
+        error "Failed to resolve IP", description = exc.msg # retry
+    if txt.len > 0 and txt[0] == keyAuth and ip4.len > 0:
+      return true
+    await sleepAsync(DefaultDnsRetryTime)
+
+    return false

libp2p/builders.nim

@@ -23,22 +23,44 @@ import
   stream/connection,
   multiaddress,
   crypto/crypto,
-  transports/[transport, tcptransport],
+  transports/[transport, tcptransport, wstransport, memorytransport],
   muxers/[muxer, mplex/mplex, yamux/yamux],
   protocols/[identify, secure/secure, secure/noise, rendezvous],
-  protocols/connectivity/[autonat/server, relay/relay, relay/client, relay/rtransport],
+  protocols/connectivity/[
+    autonat/server,
+    autonatv2/server,
+    autonatv2/service,
+    autonatv2/client,
+    relay/relay,
+    relay/client,
+    relay/rtransport,
+  ],
   connmanager,
   upgrademngrs/muxedupgrade,
   observedaddrmanager,
+  autotls/service,
   nameresolving/nameresolver,
   errors,
   utility
 import services/wildcardresolverservice
 
-export switch, peerid, peerinfo, connection, multiaddress, crypto, errors
+export
+  switch, peerid, peerinfo, connection, multiaddress, crypto, errors, TLSPrivateKey,
+  TLSCertificate, TLSFlags, ServerFlags
+
+const MemoryAutoAddress* = memorytransport.MemoryAutoAddress
 
 type
-  TransportProvider* {.public.} = proc(upgr: Upgrade): Transport {.gcsafe, raises: [].}
+  TransportProvider* {.deprecated: "Use TransportBuilder instead".} =
+    proc(upgr: Upgrade, privateKey: PrivateKey): Transport {.gcsafe, raises: [].}
+
+  TransportBuilder* {.public.} =
+    proc(config: TransportConfig): Transport {.gcsafe, raises: [].}
+
+  TransportConfig* = ref object
+    upgr*: Upgrade
+    privateKey*: PrivateKey
+    autotls*: AutotlsService
 
   SecureProtocol* {.pure.} = enum
     Noise
@@ -48,7 +70,7 @@ type
     addresses: seq[MultiAddress]
     secureManagers: seq[SecureProtocol]
     muxers: seq[MuxerProvider]
-    transports: seq[TransportProvider]
+    transports: seq[TransportBuilder]
     rng: ref HmacDrbgContext
     maxConnections: int
     maxIn: int
@@ -60,6 +82,10 @@ type
     nameResolver: NameResolver
     peerStoreCapacity: Opt[int]
     autonat: bool
+    autonatV2ServerConfig: Opt[AutonatV2Config]
+    autonatV2Client: AutonatV2Client
+    autonatV2ServiceConfig: AutonatV2ServiceConfig
+    autotls: AutotlsService
     circuitRelay: Relay
     rdv: RendezVous
     services: seq[Service]
@@ -144,26 +170,71 @@ proc withNoise*(b: SwitchBuilder): SwitchBuilder {.public.} =
   b
 
 proc withTransport*(
-    b: SwitchBuilder, prov: TransportProvider
+    b: SwitchBuilder, prov: TransportBuilder
 ): SwitchBuilder {.public.} =
   ## Use a custom transport
   runnableExamples:
     let switch = SwitchBuilder
       .new()
       .withTransport(
-        proc(upgr: Upgrade): Transport =
-          TcpTransport.new(flags, upgr)
+        proc(config: TransportConfig): Transport =
+          TcpTransport.new(flags, config.upgr)
       )
       .build()
   b.transports.add(prov)
   b
 
+proc withTransport*(
+    b: SwitchBuilder, prov: TransportProvider
+): SwitchBuilder {.deprecated: "Use TransportBuilder instead".} =
+  ## Use a custom transport
+  runnableExamples:
+    let switch = SwitchBuilder
+      .new()
+      .withTransport(
+        proc(upgr: Upgrade, privateKey: PrivateKey): Transport =
+          TcpTransport.new(flags, upgr)
+      )
+      .build()
+  let tBuilder: TransportBuilder = proc(config: TransportConfig): Transport =
+    prov(config.upgr, config.privateKey)
+  b.withTransport(tBuilder)
+
 proc withTcpTransport*(
     b: SwitchBuilder, flags: set[ServerFlags] = {}
 ): SwitchBuilder {.public.} =
   b.withTransport(
-    proc(upgr: Upgrade): Transport =
-      TcpTransport.new(flags, upgr)
+    proc(config: TransportConfig): Transport =
+      TcpTransport.new(flags, config.upgr)
+  )
+
+proc withWsTransport*(
+    b: SwitchBuilder,
+    tlsPrivateKey: TLSPrivateKey = nil,
+    tlsCertificate: TLSCertificate = nil,
+    tlsFlags: set[TLSFlags] = {},
+    flags: set[ServerFlags] = {},
+): SwitchBuilder =
+  b.withTransport(
+    proc(config: TransportConfig): Transport =
+      WsTransport.new(
+        config.upgr, tlsPrivateKey, tlsCertificate, config.autotls, tlsFlags, flags
+      )
+  )
+
+when defined(libp2p_quic_support):
+  import transports/quictransport
+
+  proc withQuicTransport*(b: SwitchBuilder): SwitchBuilder {.public.} =
+    b.withTransport(
+      proc(config: TransportConfig): Transport =
+        QuicTransport.new(config.upgr, config.privateKey)
+    )
+
+proc withMemoryTransport*(b: SwitchBuilder): SwitchBuilder {.public.} =
+  b.withTransport(
+    proc(config: TransportConfig): Transport =
+      MemoryTransport.new(config.upgr)
   )
 
 proc withRng*(b: SwitchBuilder, rng: ref HmacDrbgContext): SwitchBuilder {.public.} =
@@ -220,6 +291,26 @@ proc withAutonat*(b: SwitchBuilder): SwitchBuilder =
   b.autonat = true
   b
 
+proc withAutonatV2Server*(
+    b: SwitchBuilder, config: AutonatV2Config = AutonatV2Config.new()
+): SwitchBuilder =
+  b.autonatV2ServerConfig = Opt.some(config)
+  b
+
+proc withAutonatV2*(
+    b: SwitchBuilder, serviceConfig = AutonatV2ServiceConfig.new()
+): SwitchBuilder =
+  b.autonatV2Client = AutonatV2Client.new(b.rng)
+  b.autonatV2ServiceConfig = serviceConfig
+  b
+
+when defined(libp2p_autotls_support):
+  proc withAutotls*(
+      b: SwitchBuilder, config: AutotlsConfig = AutotlsConfig.new()
+  ): SwitchBuilder {.public.} =
+    b.autotls = AutotlsService.new(config = config)
+    b
+
 proc withCircuitRelay*(b: SwitchBuilder, r: Relay = Relay.new()): SwitchBuilder =
   b.circuitRelay = r
   b
@@ -247,6 +338,10 @@ proc build*(b: SwitchBuilder): Switch {.raises: [LPError], public.} =
   let pkRes = PrivateKey.random(b.rng[])
   let seckey = b.privKey.get(otherwise = pkRes.expect("Expected default Private Key"))
 
+  if b.secureManagers.len == 0:
+    debug "no secure managers defined. Adding noise by default"
+    b.secureManagers.add(SecureProtocol.Noise)
+
   var secureManagerInstances: seq[Secure]
   if SecureProtocol.Noise in b.secureManagers:
     secureManagerInstances.add(Noise.new(b.rng, seckey).Secure)
@@ -267,10 +362,17 @@ proc build*(b: SwitchBuilder): Switch {.raises: [LPError], public.} =
     ms = MultistreamSelect.new()
     muxedUpgrade = MuxedUpgrade.new(b.muxers, secureManagerInstances, ms)
 
+  if not b.autotls.isNil():
+    b.services.insert(b.autotls, 0)
+
   let transports = block:
     var transports: seq[Transport]
     for tProvider in b.transports:
-      transports.add(tProvider(muxedUpgrade))
+      transports.add(
+        tProvider(
+          TransportConfig(upgr: muxedUpgrade, privateKey: seckey, autotls: b.autotls)
+        )
+      )
     transports
 
   if b.secureManagers.len == 0:
@@ -288,6 +390,13 @@ proc build*(b: SwitchBuilder): Switch {.raises: [LPError], public.} =
   if b.enableWildcardResolver:
     b.services.insert(WildcardAddressResolverService.new(), 0)
 
+  if not isNil(b.autonatV2Client):
+    b.services.add(
+      AutonatV2Service.new(
+        b.rng, client = b.autonatV2Client, config = b.autonatV2ServiceConfig
+      )
+    )
+
   let switch = newSwitch(
     peerInfo = peerInfo,
     transports = transports,
@@ -301,9 +410,15 @@ proc build*(b: SwitchBuilder): Switch {.raises: [LPError], public.} =
 
   switch.mount(identify)
 
+  if not isNil(b.autonatV2Client):
+    b.autonatV2Client.setup(switch)
+    switch.mount(b.autonatV2Client)
+
+  b.autonatV2ServerConfig.withValue(config):
+    switch.mount(AutonatV2.new(switch, config = config))
+
   if b.autonat:
-    let autonat = Autonat.new(switch)
-    switch.mount(autonat)
+    switch.mount(Autonat.new(switch))
 
   if not isNil(b.circuitRelay):
     if b.circuitRelay of RelayClient:
@@ -317,13 +432,78 @@ proc build*(b: SwitchBuilder): Switch {.raises: [LPError], public.} =
 
   return switch
 
-proc newStandardSwitch*(
+type TransportType* {.pure.} = enum
+  QUIC
+  TCP
+  Memory
+
+proc newStandardSwitchBuilder*(
     privKey = none(PrivateKey),
-    addrs: MultiAddress | seq[MultiAddress] =
-      MultiAddress.init("/ip4/127.0.0.1/tcp/0").expect("valid address"),
-    secureManagers: openArray[SecureProtocol] = [SecureProtocol.Noise],
+    addrs: MultiAddress | seq[MultiAddress] = newSeq[MultiAddress](),
+    transport: TransportType = TransportType.TCP,
     transportFlags: set[ServerFlags] = {},
     rng = newRng(),
+    secureManagers: openArray[SecureProtocol] = [SecureProtocol.Noise],
+    inTimeout: Duration = 5.minutes,
+    outTimeout: Duration = 5.minutes,
+    maxConnections = MaxConnections,
+    maxIn = -1,
+    maxOut = -1,
+    maxConnsPerPeer = MaxConnectionsPerPeer,
+    nameResolver: NameResolver = nil,
+    sendSignedPeerRecord = false,
+    peerStoreCapacity = 1000,
+): SwitchBuilder {.raises: [LPError], public.} =
+  ## Helper for common switch configurations.
+  var b = SwitchBuilder
+    .new()
+    .withRng(rng)
+    .withSignedPeerRecord(sendSignedPeerRecord)
+    .withMaxConnections(maxConnections)
+    .withMaxIn(maxIn)
+    .withMaxOut(maxOut)
+    .withMaxConnsPerPeer(maxConnsPerPeer)
+    .withPeerStore(capacity = peerStoreCapacity)
+    .withNameResolver(nameResolver)
+    .withNoise()
+
+  var addrs =
+    when addrs is MultiAddress:
+      @[addrs]
+    else:
+      addrs
+
+  case transport
+  of TransportType.QUIC:
+    when defined(libp2p_quic_support):
+      if addrs.len == 0:
+        addrs = @[MultiAddress.init("/ip4/0.0.0.0/udp/0/quic-v1").tryGet()]
+      b = b.withQuicTransport().withAddresses(addrs)
+    else:
+      raiseAssert "QUIC not supported in this build"
+  of TransportType.TCP:
+    if addrs.len == 0:
+      addrs = @[MultiAddress.init("/ip4/127.0.0.1/tcp/0").tryGet()]
+    b = b.withTcpTransport(transportFlags).withAddresses(addrs).withMplex(
+        inTimeout, outTimeout
+      )
+  of TransportType.Memory:
+    if addrs.len == 0:
+      addrs = @[MultiAddress.init(MemoryAutoAddress).tryGet()]
+    b = b.withMemoryTransport().withAddresses(addrs).withMplex(inTimeout, outTimeout)
+
+  privKey.withValue(pkey):
+    b = b.withPrivateKey(pkey)
+
+  b
+
+proc newStandardSwitch*(
+    privKey = none(PrivateKey),
+    addrs: MultiAddress | seq[MultiAddress] = newSeq[MultiAddress](),
+    transport: TransportType = TransportType.TCP,
+    transportFlags: set[ServerFlags] = {},
+    rng = newRng(),
+    secureManagers: openArray[SecureProtocol] = [SecureProtocol.Noise],
     inTimeout: Duration = 5.minutes,
     outTimeout: Duration = 5.minutes,
     maxConnections = MaxConnections,
@@ -334,28 +514,21 @@ proc newStandardSwitch*(
     sendSignedPeerRecord = false,
     peerStoreCapacity = 1000,
 ): Switch {.raises: [LPError], public.} =
-  ## Helper for common switch configurations.
-  let addrs =
-    when addrs is MultiAddress:
-      @[addrs]
-    else:
-      addrs
-  var b = SwitchBuilder
-    .new()
-    .withAddresses(addrs)
-    .withRng(rng)
-    .withSignedPeerRecord(sendSignedPeerRecord)
-    .withMaxConnections(maxConnections)
-    .withMaxIn(maxIn)
-    .withMaxOut(maxOut)
-    .withMaxConnsPerPeer(maxConnsPerPeer)
-    .withPeerStore(capacity = peerStoreCapacity)
-    .withMplex(inTimeout, outTimeout)
-    .withTcpTransport(transportFlags)
-    .withNameResolver(nameResolver)
-    .withNoise()
-
-  privKey.withValue(pkey):
-    b = b.withPrivateKey(pkey)
-
-  b.build()
+  newStandardSwitchBuilder(
+    privKey = privKey,
+    addrs = addrs,
+    transport = transport,
+    transportFlags = transportFlags,
+    rng = rng,
+    secureManagers = secureManagers,
+    inTimeout = inTimeout,
+    outTimeout = outTimeout,
+    maxConnections = maxConnections,
+    maxIn = maxIn,
+    maxOut = maxOut,
+    maxConnsPerPeer = maxConnsPerPeer,
+    nameResolver = nameResolver,
+    sendSignedPeerRecord = sendSignedPeerRecord,
+    peerStoreCapacity = peerStoreCapacity,
+  )
+  .build()

libp2p/cid.nim

@@ -10,10 +10,12 @@
 ## This module implementes CID (Content IDentifier).
 
 {.push raises: [].}
+{.used.}
 
 import tables, hashes
-import multibase, multicodec, multihash, vbuffer, varint
-import stew/[base58, results]
+import multibase, multicodec, multihash, vbuffer, varint, results
+import stew/base58
+import ./utils/sequninit
 
 export results
 
@@ -41,6 +43,7 @@ const ContentIdsList = [
   multiCodec("dag-pb"),
   multiCodec("dag-cbor"),
   multiCodec("dag-json"),
+  multiCodec("libp2p-key"),
   multiCodec("git-raw"),
   multiCodec("eth-block"),
   multiCodec("eth-block-list"),
@@ -121,7 +124,7 @@ proc decode(data: openArray[char]): Result[Cid, CidError] =
     return err(CidError.Incorrect)
   if len(data) == 46:
     if data[0] == 'Q' and data[1] == 'm':
-      buffer = newSeq[byte](BTCBase58.decodedLength(len(data)))
+      buffer = newSeqUninit[byte](BTCBase58.decodedLength(len(data)))
       if BTCBase58.decode(data, buffer, plen) != Base58Status.Success:
         return err(CidError.Incorrect)
       buffer.setLen(plen)
@@ -129,7 +132,7 @@ proc decode(data: openArray[char]): Result[Cid, CidError] =
     let length = MultiBase.decodedLength(data[0], len(data))
     if length == -1:
       return err(CidError.Incorrect)
-    buffer = newSeq[byte](length)
+    buffer = newSeqUninit[byte](length)
     if MultiBase.decode(data, buffer, plen) != MultiBaseStatus.Success:
       return err(CidError.Incorrect)
     buffer.setLen(plen)

libp2p/connmanager.nim

@@ -42,8 +42,9 @@ type
     else:
       discard
 
-  ConnEventHandler* =
-    proc(peerId: PeerId, event: ConnEvent): Future[void] {.gcsafe, raises: [].}
+  ConnEventHandler* = proc(peerId: PeerId, event: ConnEvent): Future[void] {.
+    gcsafe, async: (raises: [CancelledError])
+  .}
 
   PeerEventKind* {.pure.} = enum
     Left
@@ -57,8 +58,9 @@ type
     else:
       discard
 
-  PeerEventHandler* =
-    proc(peerId: PeerId, event: PeerEvent): Future[void] {.gcsafe, raises: [].}
+  PeerEventHandler* = proc(peerId: PeerId, event: PeerEvent): Future[void] {.
+    gcsafe, async: (raises: [CancelledError])
+  .}
 
   ConnManager* = ref object of RootObj
     maxConnsPerPeer: int
@@ -123,7 +125,9 @@ proc removeConnEventHandler*(
 ) =
   c.connEvents[kind].excl(handler)
 
-proc triggerConnEvent*(c: ConnManager, peerId: PeerId, event: ConnEvent) {.async.} =
+proc triggerConnEvent*(
+    c: ConnManager, peerId: PeerId, event: ConnEvent
+) {.async: (raises: [CancelledError]).} =
   try:
     trace "About to trigger connection events", peer = peerId
     if c.connEvents[event.kind].len() > 0:
@@ -136,7 +140,8 @@ proc triggerConnEvent*(c: ConnManager, peerId: PeerId, event: ConnEvent) {.async
   except CancelledError as exc:
     raise exc
   except CatchableError as exc:
-    warn "Exception in triggerConnEvents", msg = exc.msg, peer = peerId, event = $event
+    warn "Exception in triggerConnEvent",
+      description = exc.msg, peer = peerId, event = $event
 
 proc addPeerEventHandler*(
     c: ConnManager, handler: PeerEventHandler, kind: PeerEventKind
@@ -153,7 +158,9 @@ proc removePeerEventHandler*(
 ) =
   c.peerEvents[kind].excl(handler)
 
-proc triggerPeerEvents*(c: ConnManager, peerId: PeerId, event: PeerEvent) {.async.} =
+proc triggerPeerEvents*(
+    c: ConnManager, peerId: PeerId, event: PeerEvent
+) {.async: (raises: [CancelledError]).} =
   trace "About to trigger peer events", peer = peerId
   if c.peerEvents[event.kind].len == 0:
     return
@@ -169,20 +176,20 @@ proc triggerPeerEvents*(c: ConnManager, peerId: PeerId, event: PeerEvent) {.asyn
   except CancelledError as exc:
     raise exc
   except CatchableError as exc: # handlers should not raise!
-    warn "Exception in triggerPeerEvents", exc = exc.msg, peer = peerId
+    warn "Exception in triggerPeerEvents", description = exc.msg, peer = peerId
 
 proc expectConnection*(
     c: ConnManager, p: PeerId, dir: Direction
-): Future[Muxer] {.async.} =
+): Future[Muxer] {.async: (raises: [AlreadyExpectingConnectionError, CancelledError]).} =
   ## Wait for a peer to connect to us. This will bypass the `MaxConnectionsPerPeer`
   let key = (p, dir)
   if key in c.expectedConnectionsOverLimit:
     raise newException(
       AlreadyExpectingConnectionError,
-      "Already expecting an incoming connection from that peer",
+      "Already expecting an incoming connection from that peer: " & shortLog(p),
     )
 
-  let future = newFuture[Muxer]()
+  let future = Future[Muxer].Raising([CancelledError]).init()
   c.expectedConnectionsOverLimit[key] = future
 
   try:
@@ -204,18 +211,18 @@ proc contains*(c: ConnManager, muxer: Muxer): bool =
   let conn = muxer.connection
   return muxer in c.muxed.getOrDefault(conn.peerId)
 
-proc closeMuxer(muxer: Muxer) {.async.} =
+proc closeMuxer(muxer: Muxer) {.async: (raises: [CancelledError]).} =
   trace "Cleaning up muxer", m = muxer
 
   await muxer.close()
   if not (isNil(muxer.handler)):
     try:
-      await muxer.handler # TODO noraises?
+      await muxer.handler
     except CatchableError as exc:
-      trace "Exception in close muxer handler", exc = exc.msg
+      trace "Exception in close muxer handler", description = exc.msg
   trace "Cleaned up muxer", m = muxer
 
-proc muxCleanup(c: ConnManager, mux: Muxer) {.async.} =
+proc muxCleanup(c: ConnManager, mux: Muxer) {.async: (raises: []).} =
   try:
     trace "Triggering disconnect events", mux
     let peerId = mux.connection.peerId
@@ -235,9 +242,9 @@ proc muxCleanup(c: ConnManager, mux: Muxer) {.async.} =
   except CatchableError as exc:
     # This is top-level procedure which will work as separate task, so it
     # do not need to propagate CancelledError and should handle other errors
-    warn "Unexpected exception peer cleanup handler", mux, msg = exc.msg
+    warn "Unexpected exception peer cleanup handler", mux, description = exc.msg
 
-proc onClose(c: ConnManager, mux: Muxer) {.async.} =
+proc onClose(c: ConnManager, mux: Muxer) {.async: (raises: []).} =
   ## connection close even handler
   ##
   ## triggers the connections resource cleanup
@@ -246,7 +253,8 @@ proc onClose(c: ConnManager, mux: Muxer) {.async.} =
     await mux.connection.join()
     trace "Connection closed, cleaning up", mux
   except CatchableError as exc:
-    debug "Unexpected exception in connection manager's cleanup", errMsg = exc.msg, mux
+    debug "Unexpected exception in connection manager's cleanup",
+      description = exc.msg, mux
   finally:
     await c.muxCleanup(mux)
 
@@ -270,7 +278,7 @@ proc selectMuxer*(c: ConnManager, peerId: PeerId): Muxer =
     trace "connection not found", peerId
   return mux
 
-proc storeMuxer*(c: ConnManager, muxer: Muxer) {.raises: [CatchableError].} =
+proc storeMuxer*(c: ConnManager, muxer: Muxer) {.raises: [LPError].} =
   ## store the connection and muxer
   ##
 
@@ -294,7 +302,8 @@ proc storeMuxer*(c: ConnManager, muxer: Muxer) {.raises: [CatchableError].} =
     if expectedConn != nil and not expectedConn.finished:
       expectedConn.complete(muxer)
     else:
-      debug "Too many connections for peer", conns = c.muxed.getOrDefault(peerId).len
+      debug "Too many connections for peer",
+        conns = c.muxed.getOrDefault(peerId).len, peerId, dir
 
       raise newTooManyConnectionsError()
 
@@ -321,7 +330,9 @@ proc storeMuxer*(c: ConnManager, muxer: Muxer) {.raises: [CatchableError].} =
 
   trace "Stored muxer", muxer, direction = $muxer.connection.dir, peers = c.muxed.len
 
-proc getIncomingSlot*(c: ConnManager): Future[ConnectionSlot] {.async.} =
+proc getIncomingSlot*(
+    c: ConnManager
+): Future[ConnectionSlot] {.async: (raises: [CancelledError]).} =
   await c.inSema.acquire()
   return ConnectionSlot(connManager: c, direction: In)
 
@@ -336,29 +347,25 @@ proc getOutgoingSlot*(
     raise newTooManyConnectionsError()
   return ConnectionSlot(connManager: c, direction: Out)
 
+func semaphore(c: ConnManager, dir: Direction): AsyncSemaphore {.inline.} =
+  return if dir == In: c.inSema else: c.outSema
+
 proc slotsAvailable*(c: ConnManager, dir: Direction): int =
-  case dir
-  of Direction.In:
-    return c.inSema.count
-  of Direction.Out:
-    return c.outSema.count
+  return semaphore(c, dir).count
 
 proc release*(cs: ConnectionSlot) =
-  if cs.direction == In:
-    cs.connManager.inSema.release()
-  else:
-    cs.connManager.outSema.release()
+  semaphore(cs.connManager, cs.direction).release()
 
 proc trackConnection*(cs: ConnectionSlot, conn: Connection) =
   if isNil(conn):
     cs.release()
     return
 
-  proc semaphoreMonitor() {.async.} =
+  proc semaphoreMonitor() {.async: (raises: [CancelledError]).} =
     try:
       await conn.join()
     except CatchableError as exc:
-      trace "Exception in semaphore monitor, ignoring", exc = exc.msg
+      trace "Exception in semaphore monitor, ignoring", description = exc.msg
 
     cs.release()
 
@@ -370,14 +377,18 @@ proc trackMuxer*(cs: ConnectionSlot, mux: Muxer) =
     return
   cs.trackConnection(mux.connection)
 
-proc getStream*(c: ConnManager, muxer: Muxer): Future[Connection] {.async.} =
+proc getStream*(
+    c: ConnManager, muxer: Muxer
+): Future[Connection] {.async: (raises: [LPStreamError, MuxerError, CancelledError]).} =
   ## get a muxed stream for the passed muxer
   ##
 
   if not (isNil(muxer)):
     return await muxer.newStream()
 
-proc getStream*(c: ConnManager, peerId: PeerId): Future[Connection] {.async.} =
+proc getStream*(
+    c: ConnManager, peerId: PeerId
+): Future[Connection] {.async: (raises: [LPStreamError, MuxerError, CancelledError]).} =
   ## get a muxed stream for the passed peer from any connection
   ##
 
@@ -385,13 +396,13 @@ proc getStream*(c: ConnManager, peerId: PeerId): Future[Connection] {.async.} =
 
 proc getStream*(
     c: ConnManager, peerId: PeerId, dir: Direction
-): Future[Connection] {.async.} =
+): Future[Connection] {.async: (raises: [LPStreamError, MuxerError, CancelledError]).} =
   ## get a muxed stream for the passed peer from a connection with `dir`
   ##
 
   return await c.getStream(c.selectMuxer(peerId, dir))
 
-proc dropPeer*(c: ConnManager, peerId: PeerId) {.async.} =
+proc dropPeer*(c: ConnManager, peerId: PeerId) {.async: (raises: [CancelledError]).} =
   ## drop connections and cleanup resources for peer
   ##
   trace "Dropping peer", peerId
@@ -402,7 +413,7 @@ proc dropPeer*(c: ConnManager, peerId: PeerId) {.async.} =
 
   trace "Peer dropped", peerId
 
-proc close*(c: ConnManager) {.async.} =
+proc close*(c: ConnManager) {.async: (raises: [CancelledError]).} =
   ## cleanup resources for the connection
   ## manager
   ##

libp2p/crypto/crypto.nim

@@ -11,6 +11,7 @@
 {.push raises: [].}
 
 from strutils import split, strip, cmpIgnoreCase
+import ../utils/sequninit
 
 const libp2p_pki_schemes* {.strdefine.} = "rsa,ed25519,secp256k1,ecnist"
 
@@ -76,7 +77,7 @@ import nimcrypto/[rijndael, twofish, sha2, hash, hmac]
 # We use `ncrutils` for constant-time hexadecimal encoding/decoding procedures.
 import nimcrypto/utils as ncrutils
 import ../utility
-import stew/results
+import results
 export results, utility
 
 # This is workaround for Nim's `import` bug
@@ -176,7 +177,7 @@ proc shuffle*[T](rng: ref HmacDrbgContext, x: var openArray[T]) =
   if x.len == 0:
     return
 
-  var randValues = newSeqUninitialized[byte](len(x) * 2)
+  var randValues = newSeqUninit[byte](len(x) * 2)
   hmacDrbgGenerate(rng[], randValues)
 
   for i in countdown(x.high, 1):
@@ -198,7 +199,7 @@ proc random*(
   case scheme
   of PKScheme.RSA:
     when supported(PKScheme.RSA):
-      let rsakey = ?RsaPrivateKey.random(rng, bits).orError(KeyError)
+      let rsakey = ?RsaPrivateKey.random(rng, bits).orError(CryptoError.KeyError)
       ok(PrivateKey(scheme: scheme, rsakey: rsakey))
     else:
       err(SchemeError)
@@ -210,7 +211,8 @@ proc random*(
       err(SchemeError)
   of PKScheme.ECDSA:
     when supported(PKScheme.ECDSA):
-      let eckey = ?ecnist.EcPrivateKey.random(Secp256r1, rng).orError(KeyError)
+      let eckey =
+        ?ecnist.EcPrivateKey.random(Secp256r1, rng).orError(CryptoError.KeyError)
       ok(PrivateKey(scheme: scheme, eckey: eckey))
     else:
       err(SchemeError)
@@ -237,10 +239,11 @@ proc random*(
     let skkey = SkPrivateKey.random(rng)
     ok(PrivateKey(scheme: PKScheme.Secp256k1, skkey: skkey))
   elif supported(PKScheme.RSA):
-    let rsakey = ?RsaPrivateKey.random(rng, bits).orError(KeyError)
+    let rsakey = ?RsaPrivateKey.random(rng, bits).orError(CryptoError.KeyError)
     ok(PrivateKey(scheme: PKScheme.RSA, rsakey: rsakey))
   elif supported(PKScheme.ECDSA):
-    let eckey = ?ecnist.EcPrivateKey.random(Secp256r1, rng).orError(KeyError)
+    let eckey =
+      ?ecnist.EcPrivateKey.random(Secp256r1, rng).orError(CryptoError.KeyError)
     ok(PrivateKey(scheme: PKScheme.ECDSA, eckey: eckey))
   else:
     err(SchemeError)
@@ -258,7 +261,7 @@ proc random*(
   case scheme
   of PKScheme.RSA:
     when supported(PKScheme.RSA):
-      let pair = ?RsaKeyPair.random(rng, bits).orError(KeyError)
+      let pair = ?RsaKeyPair.random(rng, bits).orError(CryptoError.KeyError)
       ok(
         KeyPair(
           seckey: PrivateKey(scheme: scheme, rsakey: pair.seckey),
@@ -280,7 +283,7 @@ proc random*(
       err(SchemeError)
   of PKScheme.ECDSA:
     when supported(PKScheme.ECDSA):
-      let pair = ?EcKeyPair.random(Secp256r1, rng).orError(KeyError)
+      let pair = ?EcKeyPair.random(Secp256r1, rng).orError(CryptoError.KeyError)
       ok(
         KeyPair(
           seckey: PrivateKey(scheme: scheme, eckey: pair.seckey),
@@ -583,7 +586,7 @@ proc init*(t: typedesc[PrivateKey], data: openArray[byte]): CryptoResult[Private
   ## Create new private key from libp2p's protobuf serialized binary form.
   var res: t
   if not res.init(data):
-    err(KeyError)
+    err(CryptoError.KeyError)
   else:
     ok(res)
 
@@ -591,7 +594,7 @@ proc init*(t: typedesc[PublicKey], data: openArray[byte]): CryptoResult[PublicKe
   ## Create new public key from libp2p's protobuf serialized binary form.
   var res: t
   if not res.init(data):
-    err(KeyError)
+    err(CryptoError.KeyError)
   else:
     ok(res)
 
@@ -871,7 +874,7 @@ proc stretchKeys*(
   var seed = "key expansion"
   result.macsize = 20
   let length = result.ivsize + result.keysize + result.macsize
-  result.data = newSeq[byte](2 * length)
+  result.data = newSeqUninit[byte](2 * length)
 
   if hashType == "SHA256":
     makeSecret(result.data, HMAC[sha256], sharedSecret, seed)
@@ -902,7 +905,7 @@ template macOpenArray*(secret: Secret, id: int): untyped =
 
 proc iv*(secret: Secret, id: int): seq[byte] {.inline.} =
   ## Get array of bytes with with initial vector.
-  result = newSeq[byte](secret.ivsize)
+  result = newSeqUninit[byte](secret.ivsize)
   var offset =
     if id == 0:
       0
@@ -911,7 +914,7 @@ proc iv*(secret: Secret, id: int): seq[byte] {.inline.} =
   copyMem(addr result[0], unsafeAddr secret.data[offset], secret.ivsize)
 
 proc key*(secret: Secret, id: int): seq[byte] {.inline.} =
-  result = newSeq[byte](secret.keysize)
+  result = newSeqUninit[byte](secret.keysize)
   var offset =
     if id == 0:
       0
@@ -921,7 +924,7 @@ proc key*(secret: Secret, id: int): seq[byte] {.inline.} =
   copyMem(addr result[0], unsafeAddr secret.data[offset], secret.keysize)
 
 proc mac*(secret: Secret, id: int): seq[byte] {.inline.} =
-  result = newSeq[byte](secret.macsize)
+  result = newSeqUninit[byte](secret.macsize)
   var offset =
     if id == 0:
       0

libp2p/crypto/curve25519.nim

@@ -18,7 +18,7 @@
 {.push raises: [].}
 
 import bearssl/[ec, rand]
-import stew/results
+import results
 from stew/assign2 import assign
 export results
 
@@ -75,7 +75,9 @@ proc public*(private: Curve25519Key): Curve25519Key =
 proc random*(_: type[Curve25519Key], rng: var HmacDrbgContext): Curve25519Key =
   var res: Curve25519Key
   let defaultBrEc = ecGetDefault()
-  let len = ecKeygen(addr rng.vtable, defaultBrEc, nil, addr res[0], EC_curve25519)
+  let len = ecKeygen(
+    PrngClassPointerConst(addr rng.vtable), defaultBrEc, nil, addr res[0], EC_curve25519
+  )
   # Per bearssl documentation, the keygen only fails if the curve is
   # unrecognised -
   doAssert len == Curve25519KeySize, "Could not generate curve"

libp2p/crypto/ecnist.nim

@@ -21,7 +21,9 @@ import bearssl/[ec, rand, hash]
 import nimcrypto/utils as ncrutils
 import minasn1
 export minasn1.Asn1Error
-import stew/[results, ctops]
+import stew/ctops
+import results
+import ../utils/sequninit
 
 import ../utility
 
@@ -234,7 +236,11 @@ proc random*(
   var ecimp = ecGetDefault()
   var res = new EcPrivateKey
   if ecKeygen(
-    addr rng.vtable, ecimp, addr res.key, addr res.buffer[0], safeConvert[cint](kind)
+    PrngClassPointerConst(addr rng.vtable),
+    ecimp,
+    addr res.key,
+    addr res.buffer[0],
+    safeConvert[cint](kind),
   ) == 0:
     err(EcKeyGenError)
   else:
@@ -453,7 +459,7 @@ proc getBytes*(seckey: EcPrivateKey): EcResult[seq[byte]] =
   if isNil(seckey):
     return err(EcKeyIncorrectError)
   if seckey.key.curve in EcSupportedCurvesCint:
-    var res = newSeq[byte]()
+    var res = newSeqUninit[byte](0)
     let length = ?seckey.toBytes(res)
     res.setLen(length)
     discard ?seckey.toBytes(res)
@@ -466,7 +472,7 @@ proc getBytes*(pubkey: EcPublicKey): EcResult[seq[byte]] =
   if isNil(pubkey):
     return err(EcKeyIncorrectError)
   if pubkey.key.curve in EcSupportedCurvesCint:
-    var res = newSeq[byte]()
+    var res = newSeqUninit[byte](0)
     let length = ?pubkey.toBytes(res)
     res.setLen(length)
     discard ?pubkey.toBytes(res)
@@ -478,7 +484,7 @@ proc getBytes*(sig: EcSignature): EcResult[seq[byte]] =
   ## Serialize EC signature ``sig`` to ASN.1 DER binary form and return it.
   if isNil(sig):
     return err(EcSignatureError)
-  var res = newSeq[byte]()
+  var res = newSeqUninit[byte](0)
   let length = ?sig.toBytes(res)
   res.setLen(length)
   discard ?sig.toBytes(res)
@@ -489,7 +495,7 @@ proc getRawBytes*(seckey: EcPrivateKey): EcResult[seq[byte]] =
   if isNil(seckey):
     return err(EcKeyIncorrectError)
   if seckey.key.curve in EcSupportedCurvesCint:
-    var res = newSeq[byte]()
+    var res = newSeqUninit[byte](0)
     let length = ?seckey.toRawBytes(res)
     res.setLen(length)
     discard ?seckey.toRawBytes(res)
@@ -502,7 +508,7 @@ proc getRawBytes*(pubkey: EcPublicKey): EcResult[seq[byte]] =
   if isNil(pubkey):
     return err(EcKeyIncorrectError)
   if pubkey.key.curve in EcSupportedCurvesCint:
-    var res = newSeq[byte]()
+    var res = newSeqUninit[byte](0)
     let length = ?pubkey.toRawBytes(res)
     res.setLen(length)
     discard ?pubkey.toRawBytes(res)
@@ -514,7 +520,7 @@ proc getRawBytes*(sig: EcSignature): EcResult[seq[byte]] =
   ## Serialize EC signature ``sig`` to raw binary form and return it.
   if isNil(sig):
     return err(EcSignatureError)
-  var res = newSeq[byte]()
+  var res = newSeqUninit[byte](0)
   let length = ?sig.toBytes(res)
   res.setLen(length)
   discard ?sig.toBytes(res)
@@ -924,7 +930,7 @@ proc getSecret*(pubkey: EcPublicKey, seckey: EcPrivateKey): seq[byte] =
   var data: array[Secret521Length, byte]
   let res = toSecret(pubkey, seckey, data)
   if res > 0:
-    result = newSeq[byte](res)
+    result = newSeqUninit[byte](res)
     copyMem(addr result[0], addr data[0], res)
 
 proc sign*[T: byte | char](
@@ -938,7 +944,7 @@ proc sign*[T: byte | char](
   var impl = ecGetDefault()
   if seckey.key.curve in EcSupportedCurvesCint:
     var sig = new EcSignature
-    sig.buffer = newSeq[byte](256)
+    sig.buffer = newSeqUninit[byte](256)
     var kv = addr sha256Vtable
     kv.init(addr hc.vtable)
     if len(message) > 0:

libp2p/crypto/ed25519/ed25519.nim

@@ -18,7 +18,8 @@ import constants
 import nimcrypto/[hash, sha2]
 # We use `ncrutils` for constant-time hexadecimal encoding/decoding procedures.
 import nimcrypto/utils as ncrutils
-import stew/[results, ctops]
+import results
+import stew/ctops
 
 import ../../utility
 

libp2p/crypto/hkdf.nim

@@ -28,8 +28,7 @@ proc hkdf*[T: sha256, len: static int](
     if salt.len > 0:
       unsafeAddr salt[0]
     else:
-      nil
-    ,
+      nil,
     csize_t(salt.len),
   )
   hkdfInject(
@@ -37,8 +36,7 @@ proc hkdf*[T: sha256, len: static int](
     if ikm.len > 0:
       unsafeAddr ikm[0]
     else:
-      nil
-    ,
+      nil,
     csize_t(ikm.len),
   )
   hkdfFlip(ctx)
@@ -48,8 +46,7 @@ proc hkdf*[T: sha256, len: static int](
       if info.len > 0:
         unsafeAddr info[0]
       else:
-        nil
-      ,
+        nil,
       csize_t(info.len),
       addr outputs[i][0],
       csize_t(outputs[i].len),

libp2p/crypto/minasn1.nim

@@ -11,11 +11,13 @@
 
 {.push raises: [].}
 
-import stew/[endians2, results, ctops]
+import stew/[endians2, ctops]
+import results
 export results
 # We use `ncrutils` for constant-time hexadecimal encoding/decoding procedures.
 import nimcrypto/utils as ncrutils
 import ../utility
+import ../utils/sequninit
 
 type
   Asn1Error* {.pure.} = enum
@@ -291,28 +293,6 @@ proc asn1EncodeBitString*(
       dest[2 + lenlen + bytelen - 1] = lastbyte and mask
   res
 
-proc asn1EncodeTag[T: SomeUnsignedInt](dest: var openArray[byte], value: T): int =
-  var v = value
-  if value <= cast[T](0x7F):
-    if len(dest) >= 1:
-      dest[0] = cast[byte](value)
-    1
-  else:
-    var s = 0
-    var res = 0
-    while v != 0:
-      v = v shr 7
-      s += 7
-      inc(res)
-    if len(dest) >= res:
-      var k = 0
-      while s != 0:
-        s -= 7
-        dest[k] = cast[byte](((value shr s) and cast[T](0x7F)) or cast[T](0x80))
-        inc(k)
-      dest[k - 1] = dest[k - 1] and 0x7F'u8
-    res
-
 proc asn1EncodeOid*(dest: var openArray[byte], value: openArray[byte]): int =
   ## Encode array of bytes ``value`` as ASN.1 DER `OBJECT IDENTIFIER` and return
   ## number of bytes (octets) used.
@@ -665,9 +645,6 @@ proc read*(ab: var Asn1Buffer): Asn1Result[Asn1Field] =
         return ok(field)
       else:
         return err(Asn1Error.NoSupport)
-
-      inclass = false
-      ttag = 0
     else:
       return err(Asn1Error.NoSupport)
 
@@ -703,15 +680,15 @@ proc init*(t: typedesc[Asn1Buffer], data: string): Asn1Buffer =
 
 proc init*(t: typedesc[Asn1Buffer]): Asn1Buffer =
   ## Initialize empty ``Asn1Buffer``.
-  Asn1Buffer(buffer: newSeq[byte]())
+  Asn1Buffer(buffer: newSeqUninit[byte](0))
 
 proc init*(t: typedesc[Asn1Composite], tag: Asn1Tag): Asn1Composite =
   ## Initialize ``Asn1Composite`` with tag ``tag``.
-  Asn1Composite(tag: tag, buffer: newSeq[byte]())
+  Asn1Composite(tag: tag, buffer: newSeqUninit[byte](0))
 
 proc init*(t: typedesc[Asn1Composite], idx: int): Asn1Composite =
   ## Initialize ``Asn1Composite`` with tag context-specific id ``id``.
-  Asn1Composite(tag: Asn1Tag.Context, idx: idx, buffer: newSeq[byte]())
+  Asn1Composite(tag: Asn1Tag.Context, idx: idx, buffer: newSeqUninit[byte](0))
 
 proc `$`*(buffer: Asn1Buffer): string =
   ## Return string representation of ``buffer``.

libp2p/crypto/rsa.nim

@@ -17,9 +17,11 @@
 
 import bearssl/[rsa, rand, hash]
 import minasn1
-import stew/[results, ctops]
+import results
+import stew/ctops
 # We use `ncrutils` for constant-time hexadecimal encoding/decoding procedures.
 import nimcrypto/utils as ncrutils
+import ../utils/sequninit
 
 export Asn1Error, results
 
@@ -123,7 +125,7 @@ proc random*[T: RsaKP](
     length = eko + ((bits + 7) shr 3)
 
   let res = new T
-  res.buffer = newSeq[byte](length)
+  res.buffer = newSeqUninit[byte](length)
 
   var keygen = rsaKeygenGetDefault()
 
@@ -168,7 +170,7 @@ proc copy*[T: RsaPKI](key: T): T =
         key.seck.dqlen.uint + key.seck.iqlen.uint + key.pubk.nlen.uint +
         key.pubk.elen.uint + key.pexplen.uint
       result = new RsaPrivateKey
-      result.buffer = newSeq[byte](length)
+      result.buffer = newSeqUninit[byte](length)
       let po: uint = 0
       let qo = po + key.seck.plen
       let dpo = qo + key.seck.qlen
@@ -206,7 +208,7 @@ proc copy*[T: RsaPKI](key: T): T =
     if len(key.buffer) > 0:
       let length = key.key.nlen + key.key.elen
       result = new RsaPublicKey
-      result.buffer = newSeq[byte](length)
+      result.buffer = newSeqUninit[byte](length)
       let no = 0
       let eo = no + key.key.nlen
       copyMem(addr result.buffer[no], key.key.n, key.key.nlen)
@@ -225,7 +227,7 @@ proc getPublicKey*(key: RsaPrivateKey): RsaPublicKey =
   doAssert(not isNil(key))
   let length = key.pubk.nlen + key.pubk.elen
   result = new RsaPublicKey
-  result.buffer = newSeq[byte](length)
+  result.buffer = newSeqUninit[byte](length)
   result.key.n = addr result.buffer[0]
   result.key.e = addr result.buffer[key.pubk.nlen]
   copyMem(addr result.buffer[0], cast[pointer](key.pubk.n), key.pubk.nlen)
@@ -356,7 +358,7 @@ proc getBytes*(key: RsaPrivateKey): RsaResult[seq[byte]] =
   ## return it.
   if isNil(key):
     return err(RsaKeyIncorrectError)
-  var res = newSeq[byte](4096)
+  var res = newSeqUninit[byte](4096)
   let length = ?key.toBytes(res)
   if length > 0:
     res.setLen(length)
@@ -369,7 +371,7 @@ proc getBytes*(key: RsaPublicKey): RsaResult[seq[byte]] =
   ## return it.
   if isNil(key):
     return err(RsaKeyIncorrectError)
-  var res = newSeq[byte](4096)
+  var res = newSeqUninit[byte](4096)
   let length = ?key.toBytes(res)
   if length > 0:
     res.setLen(length)
@@ -381,7 +383,7 @@ proc getBytes*(sig: RsaSignature): RsaResult[seq[byte]] =
   ## Serialize RSA signature ``sig`` to raw binary form and return it.
   if isNil(sig):
     return err(RsaSignatureError)
-  var res = newSeq[byte](4096)
+  var res = newSeqUninit[byte](4096)
   let length = ?sig.toBytes(res)
   if length > 0:
     res.setLen(length)
@@ -752,7 +754,7 @@ proc sign*[T: byte | char](
   var hash: array[32, byte]
   let impl = rsaPkcs1SignGetDefault()
   var res = new RsaSignature
-  res.buffer = newSeq[byte]((key.seck.nBitlen + 7) shr 3)
+  res.buffer = newSeqUninit[byte]((key.seck.nBitlen + 7) shr 3)
   var kv = addr sha256Vtable
   kv.init(addr hc.vtable)
   if len(message) > 0:

libp2p/crypto/secp.nim

@@ -10,7 +10,8 @@
 {.push raises: [].}
 
 import bearssl/rand
-import secp256k1, stew/[byteutils, results], nimcrypto/[hash, sha2]
+import secp256k1, results, stew/byteutils, nimcrypto/[hash, sha2]
+import ../utils/sequninit
 
 export sha2, results, rand
 
@@ -85,8 +86,9 @@ proc init*(sig: var SkSignature, data: string): SkResult[void] =
   var buffer: seq[byte]
   try:
     buffer = hexToSeqByte(data)
-  except ValueError:
-    return err("secp: Hex to bytes failed")
+  except ValueError as e:
+    let errMsg = "secp: Hex to bytes failed: " & e.msg
+    return err(errMsg.cstring)
   init(sig, buffer)
 
 proc init*(t: typedesc[SkPrivateKey], data: openArray[byte]): SkResult[SkPrivateKey] =
@@ -181,7 +183,7 @@ proc getBytes*(key: SkPublicKey): seq[byte] {.inline.} =
 
 proc getBytes*(sig: SkSignature): seq[byte] {.inline.} =
   ## Serialize Secp256k1 `signature` and return it.
-  result = newSeq[byte](72)
+  result = newSeqUninit[byte](72)
   let length = toBytes(sig, result)
   result.setLen(length)
 

libp2p/daemon/transpool.nim

@@ -1,148 +0,0 @@
-# Nim-Libp2p
-# Copyright (c) 2023 Status Research & Development GmbH
-# Licensed under either of
-#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
-#  * MIT license ([LICENSE-MIT](LICENSE-MIT))
-# at your option.
-# This file may not be copied, modified, or distributed except according to
-# those terms.
-
-{.push raises: [].}
-
-## This module implements Pool of StreamTransport.
-import chronos
-
-const DefaultPoolSize* = 8 ## Default pool size
-
-type
-  ConnectionFlags = enum
-    None
-    Busy
-
-  PoolItem = object
-    transp*: StreamTransport
-    flags*: set[ConnectionFlags]
-
-  PoolState = enum
-    Connecting
-    Connected
-    Closing
-    Closed
-
-  TransportPool* = ref object ## Transports pool object
-    transports: seq[PoolItem]
-    busyCount: int
-    state: PoolState
-    bufferSize: int
-    event: AsyncEvent
-
-  TransportPoolError* = object of AsyncError
-
-proc waitAll[T](futs: seq[Future[T]]): Future[void] =
-  ## Performs waiting for all Future[T].
-  var counter = len(futs)
-  var retFuture = newFuture[void]("connpool.waitAllConnections")
-  proc cb(udata: pointer) =
-    dec(counter)
-    if counter == 0:
-      retFuture.complete()
-
-  for fut in futs:
-    fut.addCallback(cb)
-  return retFuture
-
-proc newPool*(
-    address: TransportAddress,
-    poolsize: int = DefaultPoolSize,
-    bufferSize = DefaultStreamBufferSize,
-): Future[TransportPool] {.async.} =
-  ## Establish pool of connections to address ``address`` with size
-  ## ``poolsize``.
-  var pool = new TransportPool
-  pool.bufferSize = bufferSize
-  pool.transports = newSeq[PoolItem](poolsize)
-  var conns = newSeq[Future[StreamTransport]](poolsize)
-  pool.state = Connecting
-  for i in 0 ..< poolsize:
-    conns[i] = connect(address, bufferSize)
-  # Waiting for all connections to be established.
-  await waitAll(conns)
-  # Checking connections and preparing pool.
-  for i in 0 ..< poolsize:
-    if conns[i].failed:
-      raise conns[i].error
-    else:
-      let transp = conns[i].read()
-      let item = PoolItem(transp: transp)
-      pool.transports[i] = item
-  # Setup available connections event
-  pool.event = newAsyncEvent()
-  pool.state = Connected
-  result = pool
-
-proc acquire*(pool: TransportPool): Future[StreamTransport] {.async.} =
-  ## Acquire non-busy connection from pool ``pool``.
-  var transp: StreamTransport
-  if pool.state in {Connected}:
-    while true:
-      if pool.busyCount < len(pool.transports):
-        for conn in pool.transports.mitems():
-          if Busy notin conn.flags:
-            conn.flags.incl(Busy)
-            inc(pool.busyCount)
-            transp = conn.transp
-            break
-      else:
-        await pool.event.wait()
-        pool.event.clear()
-
-      if not isNil(transp):
-        break
-  else:
-    raise newException(TransportPoolError, "Pool is not ready!")
-  result = transp
-
-proc release*(pool: TransportPool, transp: StreamTransport) =
-  ## Release connection ``transp`` back to pool ``pool``.
-  if pool.state in {Connected, Closing}:
-    var found = false
-    for conn in pool.transports.mitems():
-      if conn.transp == transp:
-        conn.flags.excl(Busy)
-        dec(pool.busyCount)
-        pool.event.fire()
-        found = true
-        break
-    if not found:
-      raise newException(TransportPoolError, "Transport not bound to pool!")
-  else:
-    raise newException(TransportPoolError, "Pool is not ready!")
-
-proc join*(pool: TransportPool) {.async.} =
-  ## Waiting for all connection to become available.
-  if pool.state in {Connected, Closing}:
-    while true:
-      if pool.busyCount == 0:
-        break
-      else:
-        await pool.event.wait()
-        pool.event.clear()
-  elif pool.state == Connecting:
-    raise newException(TransportPoolError, "Pool is not ready!")
-
-proc close*(pool: TransportPool) {.async.} =
-  ## Closes transports pool ``pool`` and release all resources.
-  if pool.state == Connected:
-    pool.state = Closing
-    # Waiting for all transports to become available.
-    await pool.join()
-    # Closing all transports
-    var pending = newSeq[Future[void]](len(pool.transports))
-    for i in 0 ..< len(pool.transports):
-      let transp = pool.transports[i].transp
-      transp.close()
-      pending[i] = transp.join()
-    # Waiting for all transports to be closed
-    await waitAll(pending)
-    # Mark pool as `Closed`.
-    pool.state = Closed

libp2p/dial.nim

@@ -10,12 +10,14 @@
 {.push raises: [].}
 
 import chronos
-import stew/results
-import peerid, stream/connection, transports/transport
+import results
+import peerid, stream/connection, transports/transport, muxers/muxer
 
 export results
 
-type Dial* = ref object of RootObj
+type
+  Dial* = ref object of RootObj
+  DialFailedError* = object of LPError
 
 method connect*(
     self: Dial,
@@ -24,28 +26,44 @@ method connect*(
     forceDial = false,
     reuseConnection = true,
     dir = Direction.Out,
-) {.async, base.} =
+) {.base, async: (raises: [DialFailedError, CancelledError]).} =
   ## connect remote peer without negotiating
   ## a protocol
   ##
 
-  doAssert(false, "Not implemented!")
+  doAssert(false, "[Dial.connect] abstract method not implemented!")
 
 method connect*(
     self: Dial, address: MultiAddress, allowUnknownPeerId = false
-): Future[PeerId] {.async, base.} =
+): Future[PeerId] {.base, async: (raises: [DialFailedError, CancelledError]).} =
   ## Connects to a peer and retrieve its PeerId
 
-  doAssert(false, "Not implemented!")
+  doAssert(false, "[Dial.connect] abstract method not implemented!")
 
 method dial*(
     self: Dial, peerId: PeerId, protos: seq[string]
-): Future[Connection] {.async, base.} =
+): Future[Connection] {.base, async: (raises: [DialFailedError, CancelledError]).} =
   ## create a protocol stream over an
   ## existing connection
   ##
 
-  doAssert(false, "Not implemented!")
+  doAssert(false, "[Dial.dial] abstract method not implemented!")
+
+method dialAndUpgrade*(
+    self: Dial,
+    peerId: Opt[PeerId],
+    hostname: string,
+    addrs: MultiAddress,
+    dir = Direction.Out,
+): Future[Muxer] {.base, async: (raises: [CancelledError]).} =
+  doAssert(false, "[Dial.dialAndUpgrade] abstract method not implemented!")
+
+method dialAndUpgrade*(
+    self: Dial, peerId: Opt[PeerId], addrs: seq[MultiAddress], dir = Direction.Out
+): Future[Muxer] {.
+    base, async: (raises: [CancelledError, MaError, TransportAddressError, LPError])
+.} =
+  doAssert(false, "[Dial.dialAndUpgrade] abstract method not implemented!")
 
 method dial*(
     self: Dial,
@@ -53,17 +71,24 @@ method dial*(
     addrs: seq[MultiAddress],
     protos: seq[string],
     forceDial = false,
-): Future[Connection] {.async, base.} =
+): Future[Connection] {.base, async: (raises: [DialFailedError, CancelledError]).} =
   ## create a protocol stream and establish
   ## a connection if one doesn't exist already
   ##
 
-  doAssert(false, "Not implemented!")
+  doAssert(false, "[Dial.dial] abstract method not implemented!")
 
 method addTransport*(self: Dial, transport: Transport) {.base.} =
-  doAssert(false, "Not implemented!")
+  doAssert(false, "[Dial.addTransport] abstract method not implemented!")
+
+method negotiateStream*(
+    self: Dial, conn: Connection, protos: seq[string]
+): Future[Connection] {.base, async: (raises: [CatchableError]).} =
+  doAssert(false, "[Dial.negotiateStream] abstract method not implemented!")
 
 method tryDial*(
     self: Dial, peerId: PeerId, addrs: seq[MultiAddress]
-): Future[Opt[MultiAddress]] {.async, base.} =
-  doAssert(false, "Not implemented!")
+): Future[Opt[MultiAddress]] {.
+    base, async: (raises: [DialFailedError, CancelledError])
+.} =
+  doAssert(false, "[Dial.tryDial] abstract method not implemented!")

libp2p/dialer.nim

@@ -9,8 +9,7 @@
 
 import std/tables
 
-import stew/results
-import pkg/[chronos, chronicles, metrics]
+import pkg/[chronos, chronicles, metrics, results]
 
 import
   dial,
@@ -36,10 +35,7 @@ declareCounter(libp2p_total_dial_attempts, "total attempted dials")
 declareCounter(libp2p_successful_dials, "dialed successful peers")
 declareCounter(libp2p_failed_dials, "failed dials")
 
-type
-  DialFailedError* = object of LPError
-
-  Dialer* = ref object of Dial
+type Dialer* = ref object of Dial
   localPeerId*: PeerId
   connManager: ConnManager
   dialLock: Table[PeerId, AsyncLock]
@@ -47,25 +43,27 @@ type
   peerStore: PeerStore
   nameResolver: NameResolver
 
-proc dialAndUpgrade(
+method dialAndUpgrade*(
     self: Dialer,
     peerId: Opt[PeerId],
     hostname: string,
-    address: MultiAddress,
+    addrs: MultiAddress,
     dir = Direction.Out,
-): Future[Muxer] {.async.} =
+): Future[Muxer] {.async: (raises: [CancelledError]).} =
   for transport in self.transports: # for each transport
-    if transport.handles(address): # check if it can dial it
-      trace "Dialing address", address, peerId = peerId.get(default(PeerId)), hostname
+    if transport.handles(addrs): # check if it can dial it
+      trace "Dialing address", addrs, peerId = peerId.get(default(PeerId)), hostname
       let dialed =
         try:
           libp2p_total_dial_attempts.inc()
-          await transport.dial(hostname, address, peerId)
+          await transport.dial(hostname, addrs, peerId)
         except CancelledError as exc:
-          debug "Dialing canceled", err = exc.msg, peerId = peerId.get(default(PeerId))
+          trace "Dialing canceled",
+            description = exc.msg, peerId = peerId.get(default(PeerId))
           raise exc
         except CatchableError as exc:
-          debug "Dialing failed", err = exc.msg, peerId = peerId.get(default(PeerId))
+          debug "Dialing failed",
+            description = exc.msg, peerId = peerId.get(default(PeerId))
           libp2p_failed_dials.inc()
           return nil # Try the next address
 
@@ -87,7 +85,7 @@ proc dialAndUpgrade(
           # we won't succeeded through another - no use in trying again
           await dialed.close()
           debug "Connection upgrade failed",
-            err = exc.msg, peerId = peerId.get(default(PeerId))
+            description = exc.msg, peerId = peerId.get(default(PeerId))
           if dialed.dir == Direction.Out:
             libp2p_failed_upgrades_outgoing.inc()
           else:
@@ -103,40 +101,54 @@ proc dialAndUpgrade(
 
 proc expandDnsAddr(
     self: Dialer, peerId: Opt[PeerId], address: MultiAddress
-): Future[seq[(MultiAddress, Opt[PeerId])]] {.async.} =
-  if not DNSADDR.matchPartial(address):
+): Future[seq[(MultiAddress, Opt[PeerId])]] {.
+    async: (raises: [CancelledError, MaError, TransportAddressError, LPError])
+.} =
+  if not DNS.matchPartial(address):
     return @[(address, peerId)]
   if isNil(self.nameResolver):
     info "Can't resolve DNSADDR without NameResolver", ma = address
     return @[]
 
+  trace "Start trying to resolve addresses"
   let
     toResolve =
       if peerId.isSome:
+        try:
           address & MultiAddress.init(multiCodec("p2p"), peerId.tryGet()).tryGet()
+        except ResultError[void]:
+          raiseAssert "checked with if"
       else:
         address
     resolved = await self.nameResolver.resolveDnsAddr(toResolve)
 
+  debug "resolved addresses",
+    originalAddresses = toResolve, resolvedAddresses = resolved
+
   for resolvedAddress in resolved:
     let lastPart = resolvedAddress[^1].tryGet()
     if lastPart.protoCode == Result[MultiCodec, string].ok(multiCodec("p2p")):
-      let
+      var peerIdBytes: seq[byte]
+      try:
         peerIdBytes = lastPart.protoArgument().tryGet()
-        addrPeerId = PeerId.init(peerIdBytes).tryGet()
+      except ResultError[string] as e:
+        raiseAssert "expandDnsAddr failed in expandDnsAddr protoArgument: " & e.msg
+
+      let addrPeerId = PeerId.init(peerIdBytes).tryGet()
       result.add((resolvedAddress[0 ..^ 2].tryGet(), Opt.some(addrPeerId)))
     else:
       result.add((resolvedAddress, peerId))
 
-proc dialAndUpgrade(
+method dialAndUpgrade*(
     self: Dialer, peerId: Opt[PeerId], addrs: seq[MultiAddress], dir = Direction.Out
-): Future[Muxer] {.async.} =
+): Future[Muxer] {.
+    async: (raises: [CancelledError, MaError, TransportAddressError, LPError])
+.} =
   debug "Dialing peer", peerId = peerId.get(default(PeerId)), addrs
 
   for rawAddress in addrs:
     # resolve potential dnsaddr
     let addresses = await self.expandDnsAddr(peerId, rawAddress)
-
     for (expandedAddress, addrPeerId) in addresses:
       # DNS resolution
       let
@@ -147,6 +159,11 @@ proc dialAndUpgrade(
           else:
             await self.nameResolver.resolveMAddress(expandedAddress)
 
+      debug "Expanded address and hostname",
+        expandedAddress = expandedAddress,
+        hostname = hostname,
+        resolvedAddresses = resolvedAddresses
+
       for resolvedAddress in resolvedAddresses:
         result = await self.dialAndUpgrade(addrPeerId, hostname, resolvedAddress, dir)
         if not isNil(result):
@@ -167,30 +184,49 @@ proc internalConnect(
     forceDial: bool,
     reuseConnection = true,
     dir = Direction.Out,
-): Future[Muxer] {.async.} =
+): Future[Muxer] {.async: (raises: [DialFailedError, CancelledError]).} =
   if Opt.some(self.localPeerId) == peerId:
-    raise newException(CatchableError, "can't dial self!")
+    raise newException(DialFailedError, "internalConnect can't dial self!")
 
   # Ensure there's only one in-flight attempt per peer
   let lock = self.dialLock.mgetOrPut(peerId.get(default(PeerId)), newAsyncLock())
-  try:
   await lock.acquire()
+  defer:
+    try:
+      lock.release()
+    except AsyncLockError as e:
+      raiseAssert "lock must have been acquired in line above: " & e.msg
 
   if reuseConnection:
     peerId.withValue(peerId):
       self.tryReusingConnection(peerId).withValue(mux):
         return mux
 
-    let slot = self.connManager.getOutgoingSlot(forceDial)
+  let slot =
+    try:
+      self.connManager.getOutgoingSlot(forceDial)
+    except TooManyConnectionsError as exc:
+      raise newException(
+        DialFailedError, "failed getOutgoingSlot in internalConnect: " & exc.msg, exc
+      )
+
   let muxed =
     try:
       await self.dialAndUpgrade(peerId, addrs, dir)
-      except CatchableError as exc:
+    except CancelledError as exc:
       slot.release()
       raise exc
+    except CatchableError as exc:
+      slot.release()
+      raise newException(
+        DialFailedError, "failed dialAndUpgrade in internalConnect: " & exc.msg, exc
+      )
+
   slot.trackMuxer(muxed)
   if isNil(muxed): # None of the addresses connected
-      raise newException(DialFailedError, "Unable to establish outgoing link")
+    raise newException(
+      DialFailedError, "Unable to establish outgoing link in internalConnect"
+    )
 
   try:
     self.connManager.storeMuxer(muxed)
@@ -199,15 +235,18 @@ proc internalConnect(
       muxed.connection.peerId,
       PeerEvent(kind: PeerEventKind.Identified, initiator: true),
     )
-    except CatchableError as exc:
-      trace "Failed to finish outgoung upgrade", err = exc.msg
+    return muxed
+  except CancelledError as exc:
     await muxed.close()
     raise exc
-
-    return muxed
-  finally:
-    if lock.locked():
-      lock.release()
+  except CatchableError as exc:
+    trace "Failed to finish outgoing upgrade", description = exc.msg
+    await muxed.close()
+    raise newException(
+      DialFailedError,
+      "Failed to finish outgoing upgrade in internalConnect: " & exc.msg,
+      exc,
+    )
 
 method connect*(
     self: Dialer,
@@ -216,7 +255,7 @@ method connect*(
     forceDial = false,
     reuseConnection = true,
     dir = Direction.Out,
-) {.async.} =
+) {.async: (raises: [DialFailedError, CancelledError]).} =
   ## connect remote peer without negotiating
   ## a protocol
   ##
@@ -229,7 +268,7 @@ method connect*(
 
 method connect*(
     self: Dialer, address: MultiAddress, allowUnknownPeerId = false
-): Future[PeerId] {.async.} =
+): Future[PeerId] {.async: (raises: [DialFailedError, CancelledError]).} =
   ## Connects to a peer and retrieve its PeerId
 
   parseFullAddress(address).toOpt().withValue(fullAddress):
@@ -239,26 +278,25 @@ method connect*(
 
   if allowUnknownPeerId == false:
     raise newException(
-      DialFailedError, "Address without PeerID and unknown peer id disabled!"
+      DialFailedError, "Address without PeerID and unknown peer id disabled in connect"
     )
 
   return
     (await self.internalConnect(Opt.none(PeerId), @[address], false)).connection.peerId
 
-proc negotiateStream(
+method negotiateStream*(
     self: Dialer, conn: Connection, protos: seq[string]
-): Future[Connection] {.async.} =
+): Future[Connection] {.async: (raises: [CatchableError]).} =
   trace "Negotiating stream", conn, protos
   let selected = await MultistreamSelect.select(conn, protos)
   if not protos.contains(selected):
     await conn.closeWithEOF()
-    raise newException(DialFailedError, "Unable to select sub-protocol " & $protos)
-
+    raise newException(DialFailedError, "Unable to select sub-protocol: " & $protos)
   return conn
 
 method tryDial*(
     self: Dialer, peerId: PeerId, addrs: seq[MultiAddress]
-): Future[Opt[MultiAddress]] {.async.} =
+): Future[Opt[MultiAddress]] {.async: (raises: [DialFailedError, CancelledError]).} =
   ## Create a protocol stream in order to check
   ## if a connection is possible.
   ## Doesn't use the Connection Manager to save it.
@@ -268,27 +306,37 @@ method tryDial*(
   try:
     let mux = await self.dialAndUpgrade(Opt.some(peerId), addrs)
     if mux.isNil():
-      raise newException(DialFailedError, "No valid multiaddress")
+      raise newException(DialFailedError, "No valid multiaddress in tryDial")
     await mux.close()
     return mux.connection.observedAddr
   except CancelledError as exc:
     raise exc
   except CatchableError as exc:
-    raise newException(DialFailedError, exc.msg)
+    raise newException(DialFailedError, "tryDial failed: " & exc.msg, exc)
 
 method dial*(
     self: Dialer, peerId: PeerId, protos: seq[string]
-): Future[Connection] {.async.} =
+): Future[Connection] {.async: (raises: [DialFailedError, CancelledError]).} =
   ## create a protocol stream over an
   ## existing connection
   ##
 
   trace "Dialing (existing)", peerId, protos
+
+  try:
     let stream = await self.connManager.getStream(peerId)
     if stream.isNil:
-    raise newException(DialFailedError, "Couldn't get muxed stream")
-
+      raise newException(
+        DialFailedError,
+        "Couldn't get muxed stream in dial for peer_id: " & shortLog(peerId),
+      )
     return await self.negotiateStream(stream, protos)
+  except CancelledError as exc:
+    trace "Dial canceled", description = exc.msg
+    raise exc
+  except CatchableError as exc:
+    trace "Error dialing", description = exc.msg
+    raise newException(DialFailedError, "failed dial existing: " & exc.msg)
 
 method dial*(
     self: Dialer,
@@ -296,7 +344,7 @@ method dial*(
     addrs: seq[MultiAddress],
     protos: seq[string],
     forceDial = false,
-): Future[Connection] {.async.} =
+): Future[Connection] {.async: (raises: [DialFailedError, CancelledError]).} =
   ## create a protocol stream and establish
   ## a connection if one doesn't exist already
   ##
@@ -305,7 +353,7 @@ method dial*(
     conn: Muxer
     stream: Connection
 
-  proc cleanup() {.async.} =
+  proc cleanup() {.async: (raises: []).} =
     if not (isNil(stream)):
       await stream.closeWithEOF()
 
@@ -319,17 +367,20 @@ method dial*(
     stream = await self.connManager.getStream(conn)
 
     if isNil(stream):
-      raise newException(DialFailedError, "Couldn't get muxed stream")
+      raise newException(
+        DialFailedError,
+        "Couldn't get muxed stream in new dial for remote_peer_id: " & shortLog(peerId),
+      )
 
     return await self.negotiateStream(stream, protos)
   except CancelledError as exc:
-    trace "Dial canceled", conn
+    trace "Dial canceled", conn, description = exc.msg
     await cleanup()
     raise exc
   except CatchableError as exc:
-    debug "Error dialing", conn, err = exc.msg
+    debug "Error dialing", conn, description = exc.msg
     await cleanup()
-    raise exc
+    raise newException(DialFailedError, "failed new dial: " & exc.msg, exc)
 
 method addTransport*(self: Dialer, t: Transport) =
   self.transports &= t

libp2p/discovery/discoverymngr.nim

@@ -10,7 +10,7 @@
 {.push raises: [].}
 
 import std/sequtils
-import chronos, chronicles, stew/results
+import chronos, chronicles, results
 import ../errors
 
 type
@@ -38,8 +38,7 @@ proc add*[T](pa: var PeerAttributes, value: T) =
     Attribute[T](
       value: value,
       comparator: proc(f: BaseAttr, c: BaseAttr): bool =
-        f.ofType(T) and c.ofType(T) and f.to(T) == c.to(T)
-      ,
+        f.ofType(T) and c.ofType(T) and f.to(T) == c.to(T),
     )
   )
 
@@ -60,7 +59,7 @@ proc `{}`*[T](pa: PeerAttributes, t: typedesc[T]): Opt[T] =
 
 proc `[]`*[T](pa: PeerAttributes, t: typedesc[T]): T {.raises: [KeyError].} =
   pa{T}.valueOr:
-    raise newException(KeyError, "Attritute not found")
+    raise newException(KeyError, "Attribute not found")
 
 proc match*(pa, candidate: PeerAttributes): bool =
   for f in pa.attributes:
@@ -80,16 +79,21 @@ type
     advertisementUpdated*: AsyncEvent
     advertiseLoop*: Future[void]
 
-method request*(self: DiscoveryInterface, pa: PeerAttributes) {.async, base.} =
-  doAssert(false, "Not implemented!")
-
-method advertise*(self: DiscoveryInterface) {.async, base.} =
-  doAssert(false, "Not implemented!")
-
-type
   DiscoveryError* = object of LPError
   DiscoveryFinished* = object of LPError
+  AdvertiseError* = object of DiscoveryError
 
+method request*(
+    self: DiscoveryInterface, pa: PeerAttributes
+) {.base, async: (raises: [DiscoveryError, CancelledError]).} =
+  doAssert(false, "[DiscoveryInterface.request] abstract method not implemented!")
+
+method advertise*(
+    self: DiscoveryInterface
+) {.base, async: (raises: [CancelledError, AdvertiseError]).} =
+  doAssert(false, "[DiscoveryInterface.advertise] abstract method not implemented!")
+
+type
   DiscoveryQuery* = ref object
     attr: PeerAttributes
     peers: AsyncQueue[PeerAttributes]
@@ -109,7 +113,7 @@ proc add*(dm: DiscoveryManager, di: DiscoveryInterface) =
         try:
           query.peers.putNoWait(pa)
         except AsyncQueueFullError as exc:
-          debug "Cannot push discovered peer to queue"
+          debug "Cannot push discovered peer to queue", description = exc.msg
 
 proc request*(dm: DiscoveryManager, pa: PeerAttributes): DiscoveryQuery =
   var query = DiscoveryQuery(attr: pa, peers: newAsyncQueue[PeerAttributes]())
@@ -138,7 +142,9 @@ template forEach*(query: DiscoveryQuery, code: untyped) =
   ## peer attritubtes are available through the variable
   ## `peer`
 
-  proc forEachInternal(q: DiscoveryQuery) {.async.} =
+  proc forEachInternal(
+      q: DiscoveryQuery
+  ) {.async: (raises: [CancelledError, DiscoveryError]).} =
     while true:
       let peer {.inject.} =
         try:
@@ -153,7 +159,7 @@ proc stop*(query: DiscoveryQuery) =
   query.finished = true
   for r in query.futs:
     if not r.finished():
-      r.cancel()
+      r.cancelSoon()
 
 proc stop*(dm: DiscoveryManager) =
   for q in dm.queries:
@@ -161,15 +167,19 @@ proc stop*(dm: DiscoveryManager) =
   for i in dm.interfaces:
     if isNil(i.advertiseLoop):
       continue
-    i.advertiseLoop.cancel()
+    i.advertiseLoop.cancelSoon()
 
-proc getPeer*(query: DiscoveryQuery): Future[PeerAttributes] {.async.} =
+proc getPeer*(
+    query: DiscoveryQuery
+): Future[PeerAttributes] {.
+    async: (raises: [CancelledError, DiscoveryError, DiscoveryFinished])
+.} =
   let getter = query.peers.popFirst()
 
   try:
     await getter or allFinished(query.futs)
   except CancelledError as exc:
-    getter.cancel()
+    getter.cancelSoon()
     raise exc
 
   if not finished(getter):

libp2p/discovery/rendezvousinterface.nim

@@ -23,15 +23,17 @@ type
 
 proc `==`*(a, b: RdvNamespace): bool {.borrow.}
 
-method request*(self: RendezVousInterface, pa: PeerAttributes) {.async.} =
-  var namespace = ""
+method request*(
+    self: RendezVousInterface, pa: PeerAttributes
+) {.async: (raises: [DiscoveryError, CancelledError]).} =
+  var namespace = Opt.none(string)
   for attr in pa:
     if attr.ofType(RdvNamespace):
-      namespace = string attr.to(RdvNamespace)
+      namespace = Opt.some(string attr.to(RdvNamespace))
     elif attr.ofType(DiscoveryService):
-      namespace = string attr.to(DiscoveryService)
+      namespace = Opt.some(string attr.to(DiscoveryService))
     elif attr.ofType(PeerId):
-      namespace = $attr.to(PeerId)
+      namespace = Opt.some($attr.to(PeerId))
     else:
       # unhandled type
       return
@@ -42,13 +44,15 @@ method request*(self: RendezVousInterface, pa: PeerAttributes) {.async.} =
       for address in pr.addresses:
         peer.add(address.address)
 
-      peer.add(DiscoveryService(namespace))
-      peer.add(RdvNamespace(namespace))
+      peer.add(DiscoveryService(namespace.get()))
+      peer.add(RdvNamespace(namespace.get()))
       self.onPeerFound(peer)
 
     await sleepAsync(self.timeToRequest)
 
-method advertise*(self: RendezVousInterface) {.async.} =
+method advertise*(
+    self: RendezVousInterface
+) {.async: (raises: [CancelledError, AdvertiseError]).} =
   while true:
     var toAdvertise: seq[string]
     for attr in self.toAdvertise:
@@ -64,7 +68,7 @@ method advertise*(self: RendezVousInterface) {.async.} =
       try:
         await self.rdv.advertise(toAdv, self.ttl)
       except CatchableError as error:
-        debug "RendezVous advertise error: ", msg = error.msg
+        debug "RendezVous advertise error: ", description = error.msg
 
     await sleepAsync(self.timeToAdvertise) or self.advertisementUpdated.wait()
 

libp2p/errors.nim

@@ -27,22 +27,22 @@ macro checkFutures*[F](futs: seq[F], exclude: untyped = []): untyped =
     quote:
       for res in `futs`:
         if res.failed:
-          let exc = res.readError()
+          let exc = res.error
           # We still don't abort but warn
           debug "A future has failed, enable trace logging for details",
             error = exc.name
-          trace "Exception message", msg = exc.msg, stack = getStackTrace()
+          trace "Exception message", description = exc.msg, stack = getStackTrace()
   else:
     quote:
       for res in `futs`:
         block check:
           if res.failed:
-            let exc = res.readError()
+            let exc = res.error
             for i in 0 ..< `nexclude`:
               if exc of `exclude`[i]:
-                trace "A future has failed", error = exc.name, msg = exc.msg
+                trace "A future has failed", error = exc.name, description = exc.msg
                 break check
             # We still don't abort but warn
             debug "A future has failed, enable trace logging for details",
               error = exc.name
-            trace "Exception details", msg = exc.msg
+            trace "Exception details", description = exc.msg

libp2p/multiaddress.nim

@@ -12,7 +12,7 @@
 {.push raises: [].}
 {.push public.}
 
-import pkg/chronos, chronicles
+import pkg/[chronos, chronicles, results]
 import std/[nativesockets, net, hashes]
 import tables, strutils, sets
 import
@@ -25,8 +25,9 @@ import
   protobuf/minprotobuf,
   errors,
   utility
-import stew/[base58, base32, endians2, results]
-export results, minprotobuf, vbuffer, utility
+import stew/[base58, base32, endians2]
+export results, vbuffer, errors, utility
+import ./utils/sequninit
 
 logScope:
   topics = "libp2p multiaddress"
@@ -71,6 +72,9 @@ type
     tcpProtocol
     udpProtocol
 
+func maErr*(msg: string): ref MaError =
+  (ref MaError)(msg: msg)
+
 const
   # These are needed in order to avoid an ambiguity error stemming from
   # some cint constants with the same name defined in the posix modules
@@ -168,6 +172,18 @@ proc ip6zoneVB(vb: var VBuffer): bool =
   ## IPv6 validateBuffer() implementation.
   pathValidateBufferNoSlash(vb)
 
+proc memoryStB(s: string, vb: var VBuffer): bool =
+  ## Memory stringToBuffer() implementation.
+  pathStringToBuffer(s, vb)
+
+proc memoryBtS(vb: var VBuffer, s: var string): bool =
+  ## Memory bufferToString() implementation.
+  pathBufferToString(vb, s)
+
+proc memoryVB(vb: var VBuffer): bool =
+  ## Memory validateBuffer() implementation.
+  pathValidateBuffer(vb)
+
 proc portStB(s: string, vb: var VBuffer): bool =
   ## Port number stringToBuffer() implementation.
   var port: array[2, byte]
@@ -208,7 +224,7 @@ proc p2pStB(s: string, vb: var VBuffer): bool =
 
 proc p2pBtS(vb: var VBuffer, s: var string): bool =
   ## P2P address bufferToString() implementation.
-  var address = newSeq[byte]()
+  var address = newSeqUninit[byte](0)
   if vb.readSeq(address) > 0:
     var mh: MultiHash
     if MultiHash.decode(address, mh).isOk:
@@ -217,7 +233,7 @@ proc p2pBtS(vb: var VBuffer, s: var string): bool =
 
 proc p2pVB(vb: var VBuffer): bool =
   ## P2P address validateBuffer() implementation.
-  var address = newSeq[byte]()
+  var address = newSeqUninit[byte](0)
   if vb.readSeq(address) > 0:
     var mh: MultiHash
     if MultiHash.decode(address, mh).isOk:
@@ -352,6 +368,10 @@ const
   )
   TranscoderDNS* =
     Transcoder(stringToBuffer: dnsStB, bufferToString: dnsBtS, validateBuffer: dnsVB)
+  TranscoderMemory* = Transcoder(
+    stringToBuffer: memoryStB, bufferToString: memoryBtS, validateBuffer: memoryVB
+  )
+
   ProtocolsList = [
     MAProtocol(mcodec: multiCodec("ip4"), kind: Fixed, size: 4, coder: TranscoderIP4),
     MAProtocol(mcodec: multiCodec("tcp"), kind: Fixed, size: 2, coder: TranscoderPort),
@@ -390,6 +410,9 @@ const
     MAProtocol(mcodec: multiCodec("p2p-websocket-star"), kind: Marker, size: 0),
     MAProtocol(mcodec: multiCodec("p2p-webrtc-star"), kind: Marker, size: 0),
     MAProtocol(mcodec: multiCodec("p2p-webrtc-direct"), kind: Marker, size: 0),
+    MAProtocol(
+      mcodec: multiCodec("memory"), kind: Path, size: 0, coder: TranscoderMemory
+    ),
   ]
 
   DNSANY* = mapEq("dns")
@@ -408,7 +431,12 @@ const
   UDP_IP* = mapAnd(IP, mapEq("udp"))
   UDP* = mapOr(UDP_DNS, UDP_IP)
   UTP* = mapAnd(UDP, mapEq("utp"))
-  QUIC* = mapAnd(UDP, mapEq("quic"))
+  QUIC_IP* = mapAnd(UDP_IP, mapEq("quic"))
+  QUIC_DNS* = mapAnd(UDP_DNS, mapEq("quic"))
+  QUIC* = mapOr(QUIC_DNS, QUIC_IP)
+  QUIC_V1_IP* = mapAnd(UDP_IP, mapEq("quic-v1"))
+  QUIC_V1_DNS* = mapAnd(UDP_DNS, mapEq("quic-v1"))
+  QUIC_V1* = mapOr(QUIC_V1_DNS, QUIC_V1_IP)
   UNIX* = mapEq("unix")
   WS_DNS* = mapAnd(TCP_DNS, mapEq("ws"))
   WS_IP* = mapAnd(TCP_IP, mapEq("ws"))
@@ -445,6 +473,8 @@ const
 
   CircuitRelay* = mapEq("p2p-circuit")
 
+  Memory* = mapEq("memory")
+
 proc initMultiAddressCodeTable(): Table[MultiCodec, MAProtocol] {.compileTime.} =
   for item in ProtocolsList:
     result[item.mcodec] = item
@@ -526,7 +556,7 @@ proc protoAddress*(ma: MultiAddress): MaResult[seq[byte]] =
   ##
   ## If current MultiAddress do not have argument value, then result array will
   ## be empty.
-  var buffer = newSeq[byte](len(ma.data.buffer))
+  var buffer = newSeqUninit[byte](len(ma.data.buffer))
   let res = ?protoArgument(ma, buffer)
   buffer.setLen(res)
   ok(buffer)
@@ -540,7 +570,7 @@ proc protoArgument*(ma: MultiAddress): MaResult[seq[byte]] =
 
 proc getPart(ma: MultiAddress, index: int): MaResult[MultiAddress] =
   var header: uint64
-  var data = newSeq[byte]()
+  var data = newSeqUninit[byte](0)
   var offset = 0
   var vb = ma
   var res: MultiAddress
@@ -614,7 +644,7 @@ proc `[]`*(ma: MultiAddress, slice: HSlice): MaResult[MultiAddress] {.inline.} =
 iterator items*(ma: MultiAddress): MaResult[MultiAddress] =
   ## Iterates over all addresses inside of MultiAddress ``ma``.
   var header: uint64
-  var data = newSeq[byte]()
+  var data = newSeqUninit[byte](0)
   var vb = ma
   while true:
     if vb.data.isEmpty():
@@ -813,6 +843,14 @@ proc init*(
       res.data.finish()
       ok(res)
 
+proc getPart*(ma: MultiAddress, codec: MultiCodec): MaResult[MultiAddress] =
+  ## Returns the first multiaddress in ``value`` with codec ``codec``
+  for part in ma:
+    let part = ?part
+    if codec == ?part.protoCode:
+      return ok(part)
+  err("no such codec in multiaddress")
+
 proc getProtocol(name: string): MAProtocol {.inline.} =
   let mc = MultiCodec.codec(name)
   if mc != InvalidMultiCodec:
@@ -970,23 +1008,21 @@ proc append*(m1: var MultiAddress, m2: MultiAddress): MaResult[void] =
   else:
     ok()
 
-proc `&`*(m1, m2: MultiAddress): MultiAddress {.raises: [LPError].} =
+proc `&`*(m1, m2: MultiAddress): MultiAddress {.raises: [MaError].} =
   ## Concatenates two addresses ``m1`` and ``m2``, and returns result.
   ##
   ## This procedure performs validation of concatenated result and can raise
   ## exception on error.
-  ##
+  concat(m1, m2).valueOr:
+    raise maErr error
 
-  concat(m1, m2).tryGet()
-
-proc `&=`*(m1: var MultiAddress, m2: MultiAddress) {.raises: [LPError].} =
+proc `&=`*(m1: var MultiAddress, m2: MultiAddress) {.raises: [MaError].} =
   ## Concatenates two addresses ``m1`` and ``m2``.
   ##
   ## This procedure performs validation of concatenated result and can raise
   ## exception on error.
-  ##
-
-  m1.append(m2).tryGet()
+  m1.append(m2).isOkOr:
+    raise maErr error
 
 proc `==`*(m1: var MultiAddress, m2: MultiAddress): bool =
   ## Check of two MultiAddress are equal
@@ -1091,3 +1127,32 @@ proc getRepeatedField*(
       err(ProtoError.IncorrectBlob)
     else:
       ok(true)
+
+proc areAddrsConsistent*(a, b: MultiAddress): bool =
+  ## Checks if two multiaddresses have the same protocol stack.
+  let protosA = a.protocols().get()
+  let protosB = b.protocols().get()
+  if protosA.len != protosB.len:
+    return false
+
+  for idx in 0 ..< protosA.len:
+    let protoA = protosA[idx]
+    let protoB = protosB[idx]
+
+    if protoA != protoB:
+      if idx == 0:
+        # allow DNS ↔ IP at the first component
+        if protoB == multiCodec("dns") or protoB == multiCodec("dnsaddr"):
+          if not (protoA == multiCodec("ip4") or protoA == multiCodec("ip6")):
+            return false
+        elif protoB == multiCodec("dns4"):
+          if protoA != multiCodec("ip4"):
+            return false
+        elif protoB == multiCodec("dns6"):
+          if protoA != multiCodec("ip6"):
+            return false
+        else:
+          return false
+      else:
+        return false
+  true

libp2p/multibase.nim

@@ -16,7 +16,9 @@
 {.push raises: [].}
 
 import tables
-import stew/[base32, base58, base64, results]
+import results
+import stew/[base32, base58, base64]
+import ./utils/sequninit
 
 type
   MultiBaseStatus* {.pure.} = enum
@@ -532,7 +534,7 @@ proc decode*(
     let empty: seq[byte] = @[]
     ok(empty) # empty
   else:
-    var buffer = newSeq[byte](mb.decl(length - 1))
+    var buffer = newSeqUninit[byte](mb.decl(length - 1))
     var outlen = 0
     let res = mb.decr(inbytes.toOpenArray(1, length - 1), buffer, outlen)
     if res != MultiBaseStatus.Success:

libp2p/multicodec.nim

@@ -10,10 +10,11 @@
 ## This module implements MultiCodec.
 
 {.push raises: [].}
+{.used.}
 
 import tables, hashes
 import vbuffer
-import stew/results
+import results
 export results
 
 ## List of officially supported codecs can BE found here
@@ -396,6 +397,7 @@ const MultiCodecList = [
   ("onion3", 0x01BD),
   ("p2p-circuit", 0x0122),
   ("libp2p-peer-record", 0x0301),
+  ("memory", 0x0309),
   ("dns", 0x35),
   ("dns4", 0x36),
   ("dns6", 0x37),
@@ -403,6 +405,7 @@ const MultiCodecList = [
   # IPLD formats
   ("dag-pb", 0x70),
   ("dag-cbor", 0x71),
+  ("libp2p-key", 0x72),
   ("dag-json", 0x129),
   ("git-raw", 0x78),
   ("eth-block", 0x90),

libp2p/multihash.nim

@@ -22,12 +22,13 @@
 ## 2. MURMUR
 
 {.push raises: [].}
+{.used.}
 
 import tables
 import nimcrypto/[sha, sha2, keccak, blake2, hash, utils]
 import varint, vbuffer, multicodec, multibase
 import stew/base58
-import stew/results
+import results
 export results
 # This is workaround for Nim `import` bug.
 export sha, sha2, keccak, blake2, hash, utils
@@ -566,7 +567,7 @@ proc init*(mhtype: typedesc[MultiHash], data: string): MhResult[MultiHash] {.inl
 proc init58*(mhtype: typedesc[MultiHash], data: string): MultiHash {.inline.} =
   ## Create MultiHash from BASE58 encoded string representation ``data``.
   if MultiHash.decode(Base58.decode(data), result) == -1:
-    raise newException(MultihashError, "Incorrect MultiHash binary format")
+    raise newException(MultihashError, "Incorrect MultiHash binary format in init58")
 
 proc cmp(a: openArray[byte], b: openArray[byte]): bool {.inline.} =
   if len(a) != len(b):

libp2p/multistream.nim

@@ -212,7 +212,7 @@ proc handle*(
   except CancelledError as exc:
     raise exc
   except CatchableError as exc:
-    trace "Exception in multistream", conn, msg = exc.msg
+    trace "Exception in multistream", conn, description = exc.msg
   finally:
     await conn.close()
 
@@ -249,11 +249,7 @@ proc addHandler*[E](
   m.handlers.add(HandlerHolder(protos: @[codec], protocol: protocol, match: matcher))
 
 proc start*(m: MultistreamSelect) {.async: (raises: [CancelledError]).} =
-  # Nim 1.6.18: Using `mapIt` results in a seq of `.Raising([])`
-  # TODO https://github.com/nim-lang/Nim/issues/23445
-  var futs = newSeqOfCap[Future[void].Raising([CancelledError])](m.handlers.len)
-  for it in m.handlers:
-    futs.add it.protocol.start()
+  let futs = m.handlers.mapIt(it.protocol.start())
   try:
     await allFutures(futs)
     for fut in futs:
@@ -273,10 +269,7 @@ proc start*(m: MultistreamSelect) {.async: (raises: [CancelledError]).} =
     raise exc
 
 proc stop*(m: MultistreamSelect) {.async: (raises: []).} =
-  # Nim 1.6.18: Using `mapIt` results in a seq of `.Raising([CancelledError])`
-  var futs = newSeqOfCap[Future[void].Raising([])](m.handlers.len)
-  for it in m.handlers:
-    futs.add it.protocol.stop()
+  let futs = m.handlers.mapIt(it.protocol.stop())
   await noCancel allFutures(futs)
   for fut in futs:
     await fut

libp2p/muxers/mplex/lpchannel.nim

@@ -11,8 +11,7 @@
 
 import std/[oids, strformat]
 import pkg/[chronos, chronicles, metrics]
-import
-  ./coder, ../muxer, ../../stream/[bufferstream, connection, streamseq], ../../peerinfo
+import ./coder, ../muxer, ../../stream/[bufferstream, connection], ../../peerinfo
 
 export connection
 
@@ -87,7 +86,7 @@ proc open*(s: LPChannel) {.async: (raises: [CancelledError, LPStreamError]).} =
     raise exc
   except LPStreamError as exc:
     await s.conn.close()
-    raise exc
+    raise newException(LPStreamError, "Opening LPChannel failed: " & exc.msg, exc)
 
 method closed*(s: LPChannel): bool =
   s.closedLocal
@@ -116,7 +115,7 @@ proc reset*(s: LPChannel) {.async: (raises: []).} =
         trace "sending reset message", s, conn = s.conn
         await noCancel s.conn.writeMsg(s.id, s.resetCode) # write reset
       except LPStreamError as exc:
-        trace "Can't send reset message", s, conn = s.conn, msg = exc.msg
+        trace "Can't send reset message", s, conn = s.conn, description = exc.msg
         await s.conn.close()
 
     asyncSpawn resetMessage()
@@ -145,12 +144,16 @@ method close*(s: LPChannel) {.async: (raises: []).} =
       # It's harmless that close message cannot be sent - the connection is
       # likely down already
       await s.conn.close()
-      trace "Cannot send close message", s, id = s.id, msg = exc.msg
+      trace "Cannot send close message", s, id = s.id, description = exc.msg
 
   await s.closeUnderlying() # maybe already eofed
 
   trace "Closed channel", s, len = s.len
 
+method closeWrite*(s: LPChannel) {.async: (raises: []).} =
+  ## For mplex, closeWrite is the same as close - it implements half-close
+  await s.close()
+
 method initStream*(s: LPChannel) =
   if s.objName.len == 0:
     s.objName = LPChannelTrackerName
@@ -169,6 +172,7 @@ method readOnce*(
   ## channel must not be done from within a callback / read handler of another
   ## or the reads will lock each other.
   if s.remoteReset:
+    trace "reset stream in readOnce", s
     raise newLPStreamResetError()
   if s.localReset:
     raise newLPStreamClosedError()
@@ -201,6 +205,7 @@ proc prepareWrite(
   # prepareWrite is the slow path of writing a message - see conditions in
   # write
   if s.remoteReset:
+    trace "stream is reset when prepareWrite", s
     raise newLPStreamResetError()
   if s.closedLocal:
     raise newLPStreamClosedError()
@@ -256,7 +261,7 @@ proc completeWrite(
   except LPStreamEOFError as exc:
     raise exc
   except LPStreamError as exc:
-    trace "exception in lpchannel write handler", s, msg = exc.msg
+    trace "exception in lpchannel write handler", s, description = exc.msg
     await s.reset()
     await s.conn.close()
     raise newLPStreamConnDownError(exc)

libp2p/muxers/mplex/mplex.nim

@@ -70,7 +70,7 @@ proc cleanupChann(m: Mplex, chann: LPChannel) {.async: (raises: []), inline.} =
         labelValues = [$chann.initiator, $m.connection.peerId],
       )
   except CancelledError as exc:
-    warn "Error cleaning up mplex channel", m, chann, msg = exc.msg
+    warn "Error cleaning up mplex channel", m, chann, description = exc.msg
 
 proc newStreamInternal*(
     m: Mplex,
@@ -95,6 +95,7 @@ proc newStreamInternal*(
 
   result.peerId = m.connection.peerId
   result.observedAddr = m.connection.observedAddr
+  result.localAddr = m.connection.localAddr
   result.transportDir = m.connection.transportDir
   when defined(libp2p_agents_metrics):
     result.shortAgent = m.connection.shortAgent
@@ -175,7 +176,7 @@ method handle*(m: Mplex) {.async: (raises: []).} =
         except LPStreamClosedError as exc:
           # Channel is being closed, but `cleanupChann` was not yet triggered.
           trace "pushing data to channel failed",
-            m, channel, len = data.len, msg = exc.msg
+            m, channel, len = data.len, description = exc.msg
           discard # Ignore message, same as if `cleanupChann` had completed.
       of MessageType.CloseIn, MessageType.CloseOut:
         await channel.pushEof()
@@ -185,11 +186,11 @@ method handle*(m: Mplex) {.async: (raises: []).} =
   except CancelledError:
     debug "Unexpected cancellation in mplex handler", m
   except LPStreamEOFError as exc:
-    trace "Stream EOF", m, msg = exc.msg
+    trace "Stream EOF", m, description = exc.msg
   except LPStreamError as exc:
-    debug "Unexpected stream exception in mplex read loop", m, msg = exc.msg
+    debug "Unexpected stream exception in mplex read loop", m, description = exc.msg
   except MuxerError as exc:
-    debug "Unexpected muxer exception in mplex read loop", m, msg = exc.msg
+    debug "Unexpected muxer exception in mplex read loop", m, description = exc.msg
   finally:
     await m.close()
   trace "Stopped mplex handler", m
@@ -247,7 +248,7 @@ method close*(m: Mplex) {.async: (raises: []).} =
 
   trace "Closed mplex", m
 
-method getStreams*(m: Mplex): seq[Connection] =
+method getStreams*(m: Mplex): seq[Connection] {.gcsafe.} =
   for c in m.channels[false].values:
     result.add(c)
   for c in m.channels[true].values:

libp2p/muxers/muxer.nim

@@ -52,7 +52,11 @@ method newStream*(
 ): Future[Connection] {.
     base, async: (raises: [CancelledError, LPStreamError, MuxerError], raw: true)
 .} =
-  raiseAssert("Not implemented!")
+  raiseAssert("[Muxer.newStream] abstract method not implemented!")
+
+when defined(libp2p_agents_metrics):
+  method setShortAgent*(m: Muxer, shortAgent: string) {.base, gcsafe.} =
+    m.connection.shortAgent = shortAgent
 
 method close*(m: Muxer) {.base, async: (raises: []).} =
   if m.connection != nil:
@@ -67,5 +71,5 @@ proc new*(
   let muxerProvider = T(newMuxer: creator, codec: codec)
   muxerProvider
 
-method getStreams*(m: Muxer): seq[Connection] {.base.} =
-  raiseAssert("Not implemented!")
+method getStreams*(m: Muxer): seq[Connection] {.base, gcsafe.} =
+  raiseAssert("[Muxer.getStreams] abstract method not implemented!")