test(rendezvous): error cases (#1683)

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

.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

@@ -8,7 +8,7 @@ inputs:
     default: "amd64"
   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"

.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/ci.yml

@@ -25,15 +25,11 @@ jobs:
             cpu: i386
           - os: linux-gcc-14
             cpu: amd64
-          - os: macos
-            cpu: amd64
           - os: macos-14
             cpu: arm64
           - os: windows
             cpu: amd64
         nim:
-          - ref: version-1-6
-            memory_management: refc
           - ref: version-2-0
             memory_management: refc
           - ref: version-2-2
@@ -47,10 +43,6 @@ jobs:
               os: linux-gcc-14
             builder: ubuntu-24.04
             shell: bash
-          - platform:
-              os: macos
-            builder: macos-13
-            shell: bash
           - platform:
               os: macos-14
             builder: macos-14
@@ -80,15 +72,6 @@ jobs:
           shell: ${{ matrix.shell }}
           nim_ref: ${{ matrix.nim.ref }}
 
-      - name: Setup Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: '~1.16.0' # That's the minimum Go version that works with arm.
-
-      - name: Install p2pd
-        run: |
-          V=1 bash scripts/build_p2pd.sh p2pdCache 124530a3
-
       - name: Restore deps from cache
         id: deps-cache
         uses: actions/cache@v3
@@ -118,5 +101,5 @@ jobs:
           nimble --version
           gcc --version
 
-          export NIMFLAGS="${NIMFLAGS} -d:libp2p_quic_support --mm:${{ matrix.nim.memory_management }}" 
+          export NIMFLAGS="${NIMFLAGS} --mm:${{ matrix.nim.memory_management }}" 
           nimble test

.github/workflows/coverage.yml

@@ -51,7 +51,7 @@ jobs:
 
       - name: Run test suite with coverage flags
         run: |
-          export NIMFLAGS="-d:libp2p_quic_support --lineDir:on --passC:-fprofile-arcs --passC:-ftest-coverage --passL:-fprofile-arcs --passL:-ftest-coverage"
+          export NIMFLAGS="--lineDir:on --passC:-fprofile-arcs --passC:-ftest-coverage --passL:-fprofile-arcs --passL:-ftest-coverage"
           nimble testnative
           nimble testpubsub
           nimble testfilter

.github/workflows/daily_amd64.yml

@@ -6,9 +6,37 @@ on:
   workflow_dispatch:
 
 jobs:
-  test_amd64:
-    name: Daily amd64
+  test_amd64_latest:
+    name: Daily test amd64 (latest dependencies)
     uses: ./.github/workflows/daily_common.yml
     with:
-      nim: "[{'ref': 'version-1-6', 'memory_management': 'refc'}, {'ref': 'version-2-0', 'memory_management': 'refc'}]"
+      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

@@ -4,6 +4,11 @@ name: Daily Common
 on:
   workflow_call:
     inputs:
+      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
@@ -17,20 +22,12 @@ on:
         required: false
         type: string
         default: "[]"
-      use_sat_solver:
-        description: 'Install dependencies with SAT Solver'
-        required: false
-        type: boolean
-        default: false
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
 
 jobs:
   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
 
@@ -72,17 +69,13 @@ jobs:
           nim_ref: ${{ matrix.nim.ref }}
           cpu: ${{ matrix.cpu }}
 
-      - name: Setup Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: '~1.16.0'
-          cache: false
-
-      - name: Install p2pd
+      - name: Install dependencies (pinned)
+        if: ${{ inputs.pinned_deps }}
         run: |
-          V=1 bash scripts/build_p2pd.sh p2pdCache 124530a3
-        
-      - name: Install dependencies
+          nimble install_pinned
+
+      - name: Install dependencies (latest)
+        if: ${{ inputs.pinned_deps == false }}
         run: |
           nimble install -y --depsOnly
 
@@ -91,11 +84,14 @@ jobs:
           nim --version
           nimble --version
 
-          if [[ "${{ inputs.use_sat_solver }}" == "true" ]]; then
-            dependency_solver="sat"
-          else
-            dependency_solver="legacy"
-          fi
-
-          export NIMFLAGS="${NIMFLAGS} -d:libp2p_quic_support --mm:${{ matrix.nim.memory_management }} --solver:${dependency_solver}"
+          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_devel.yml

@@ -1,14 +0,0 @@
-name: Daily Nim Devel
-
-on:
-  schedule:
-    - cron: "30 6 * * *"
-  workflow_dispatch:
-
-jobs:
-  test_nim_devel:
-    name: Daily Nim Devel
-    uses: ./.github/workflows/daily_common.yml
-    with:
-      nim: "[{'ref': 'devel', 'memory_management': 'orc'}]"
-      cpu: "['amd64']"

.github/workflows/daily_i386.yml

@@ -6,10 +6,45 @@ on:
   workflow_dispatch:
 
 jobs:
-  test_i386:
-    name: Daily i386 (Linux)
+  test_i386_latest:
+    name: Daily i386 (latest dependencies)
     uses: ./.github/workflows/daily_common.yml
     with:
-      nim: "[{'ref': 'version-1-6', 'memory_management': 'refc'}, {'ref': 'version-2-0', 'memory_management': 'refc'}, {'ref': 'devel', 'memory_management': 'orc'}]"
+      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_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/daily_sat.yml

@@ -1,15 +0,0 @@
-name: Daily SAT
-
-on:
-  schedule:
-    - cron: "30 6 * * *"
-  workflow_dispatch:
-
-jobs:
-  test_amd64:
-    name: Daily SAT
-    uses: ./.github/workflows/daily_common.yml
-    with:
-      nim: "[{'ref': 'version-2-0', 'memory_management': 'refc'}]"
-      cpu: "['amd64']"
-      use_sat_solver: true

.github/workflows/dependencies.yml

@@ -17,13 +17,13 @@ jobs:
         target:
           - repository: status-im/nimbus-eth2
             ref: unstable
-            token: ${{ secrets.ACTIONS_GITHUB_TOKEN_NIMBUS_ETH2 }}
+            secret: ACTIONS_GITHUB_TOKEN_NIMBUS_ETH2
           - repository: waku-org/nwaku
             ref: master
-            token: ${{ secrets.ACTIONS_GITHUB_TOKEN_NWAKU }}
+            secret: ACTIONS_GITHUB_TOKEN_NWAKU
           - repository: codex-storage/nim-codex
             ref: master
-            token: ${{ secrets.ACTIONS_GITHUB_TOKEN_NIM_CODEX }}
+            secret: ACTIONS_GITHUB_TOKEN_NIM_CODEX
     steps:
       - name: Clone target repository
         uses: actions/checkout@v4
@@ -32,7 +32,7 @@ jobs:
           ref: ${{ matrix.target.ref}}
           path: nbc
           fetch-depth: 0
-          token: ${{ matrix.target.token }}
+          token: ${{ secrets[matrix.target.secret] }}
 
       - name: Checkout this ref in target repository
         run: |
@@ -50,4 +50,16 @@ jobs:
           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

@@ -21,7 +21,7 @@ jobs:
 
       - uses: jiro4989/setup-nim-action@v1
         with:
-          nim-version: '1.6.x'
+          nim-version: '2.2.x'
 
       - name: Generate doc
         run: |

.github/workflows/examples.yml

@@ -36,7 +36,7 @@ jobs:
           shell: bash
           os: linux
           cpu: amd64
-          nim_ref: version-1-6
+          nim_ref: version-2-2
 
       - name: Restore deps from cache
         id: deps-cache

.github/workflows/interop.yml

@@ -27,7 +27,7 @@ jobs:
       - 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:
@@ -35,26 +35,55 @@ jobs:
           # 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 }}/tests/transport-interop/version.json
+          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
-          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 }}
+          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

@@ -22,6 +22,6 @@ jobs:
         uses: arnetheduck/nph-action@v1
         with:
           version: 0.6.1
-          options: "examples libp2p tests tools *.nim*"
+          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

.pinned

@@ -1,6 +1,6 @@
 bearssl;https://github.com/status-im/nim-bearssl@#34d712933a4e0f91f5e66bc848594a581504a215
-chronicles;https://github.com/status-im/nim-chronicles@#32ac8679680ea699f7dbc046e8e0131cac97d41a
-chronos;https://github.com/status-im/nim-chronos@#c04576d829b8a0a1b12baaa8bc92037501b3a4a0
+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@#c51315d0ae5eb2594d0bf41181d0e1aca1b3c01d
 httputils;https://github.com/status-im/nim-http-utils@#79cbab1460f4c0cdde2084589d017c43a3d7b4f1
@@ -8,12 +8,14 @@ json_serialization;https://github.com/status-im/nim-json-serialization@#2b1c5eb1
 metrics;https://github.com/status-im/nim-metrics@#6142e433fc8ea9b73379770a788017ac528d46ff
 ngtcp2;https://github.com/status-im/nim-ngtcp2@#9456daa178c655bccd4a3c78ad3b8cce1f0add73
 nimcrypto;https://github.com/cheatfate/nimcrypto@#19c41d6be4c00b4a2c8000583bd30cf8ceb5f4b1
-quic;https://github.com/status-im/nim-quic.git@#a6c30263c95fc5ddb2ef4d197c09b282555c06b0
+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@#f8ed9b40a5ff27ad02a3c237c4905b0924e3f982
+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

@@ -20,14 +20,13 @@
 - [Background](#background)
 - [Install](#install)
 - [Getting Started](#getting-started)
-  - [Testing](#testing)
-- [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
@@ -39,20 +38,106 @@ This is a native Nim implementation, using [chronos](https://github.com/status-i
 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 versions are 1.6, 2.0 and 2.2.
+
+> The currently supported Nim versions are 2.0 and 2.2.
 
 ```
 nimble install libp2p
 ```
-
-## Getting Started
 You'll find the nim-libp2p documentation [here](https://vacp2p.github.io/nim-libp2p/docs/). See [examples](./examples) for simple usage patterns.
 
+## Getting Started
+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:
@@ -64,8 +149,6 @@ 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                                                                           |
@@ -109,72 +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/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 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

@@ -4,12 +4,14 @@ 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:
@@ -22,7 +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

examples/directchat.nim

@@ -1,3 +1,4 @@
+{.used.}
 when not (compileOption("threads")):
   {.fatal: "Please, compile this program with the --threads:on option!".}
 

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 CatchableError as err:
-      echo err.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 `1.16.0`.
-> 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 `1.16.0`, 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

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`.

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.

examples/tutorial_4_gossipsub.nim

@@ -1,3 +1,4 @@
+{.used.}
 ## # GossipSub
 ##
 ## In this tutorial, we'll build a simple GossipSub network

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

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

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
+          ];
+        };
+      });
+    };
+}

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 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo=
+dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
+dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
+dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
+dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
+git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
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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

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1.5-labs
-FROM nimlang/nim:1.6.16 as builder
+FROM nimlang/nim:latest as builder
 
 WORKDIR /workspace
 
@@ -7,11 +7,11 @@ 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@#b341fe240dbf11c544011dd0e033d3c3acca56af" -y
+RUN cd nim-libp2p && nimble install_pinned && nimble install redis -y
 
 COPY . nim-libp2p/
 
-RUN cd nim-libp2p && nim c --skipParentCfg --NimblePath:./nimbledeps/pkgs -d:chronicles_log_level=DEBUG -d:chronicles_default_output_device=stderr -d:release --threads:off --skipProjCfg -o:hole-punching-tests ./tests/hole-punching-interop/hole_punching.nim
+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

interop/hole-punching/hole_punching.nim

@@ -15,8 +15,7 @@ import
     protocols/connectivity/autonat/service,
     protocols/ping,
   ]
-import ../stubs/autonatclientstub
-import ../errorhelpers
+import ../../tests/[stubs/autonatclientstub, errorhelpers]
 
 logScope:
   topics = "hp interop node"
@@ -85,8 +84,8 @@ proc main() {.async.} =
     debug "Dialing relay...", relayMA
     let relayId = await switch.connect(relayMA).wait(30.seconds)
     debug "Connected to relay", relayId
-  except AsyncTimeoutError:
-    raise newException(CatchableError, "Connection to relay timed out")
+  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()):
@@ -104,7 +103,7 @@ proc main() {.async.} =
       try:
         PeerId.init(redisClient.bLPop(@["LISTEN_CLIENT_PEER_ID"], 0)[1]).tryGet()
       except Exception as e:
-        raise newException(CatchableError, e.msg)
+        raise newException(CatchableError, "Exception init peer: " & e.msg, e)
 
     debug "Got listener peer id", listenerId
     let listenerRelayAddr = MultiAddress.init($relayMA & "/p2p-circuit").tryGet()
@@ -131,8 +130,8 @@ try:
     return "done"
 
   discard waitFor(mainAsync().wait(4.minutes))
-except AsyncTimeoutError:
-  error "Program execution timed out."
+except AsyncTimeoutError as e:
+  error "Program execution timed out", description = e.msg
   quit(-1)
 except CatchableError as e:
   error "Unexpected error", description = e.msg

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

@@ -47,12 +47,9 @@ proc main() {.async.} =
         MultiAddress.init("/ip4/" & ip & "/udp/0/quic-v1").tryGet()
       )
   of "ws":
-    discard switchBuilder
-      .withTransport(
-        proc(upgr: Upgrade, privateKey: PrivateKey): Transport =
-          WsTransport.new(upgr)
+    discard switchBuilder.withWsTransport().withAddress(
+        MultiAddress.init("/ip4/" & ip & "/tcp/0/ws").tryGet()
       )
-      .withAddress(MultiAddress.init("/ip4/" & ip & "/tcp/0/ws").tryGet())
   else:
     doAssert false
 
@@ -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()
@@ -108,8 +105,8 @@ try:
     return "done"
 
   discard waitFor(mainAsync().wait(testTimeout))
-except AsyncTimeoutError:
-  error "Program execution timed out."
+except AsyncTimeoutError as e:
+  error "Program execution timed out", description = e.msg
   quit(-1)
 except CatchableError as e:
   error "Unexpected error", description = e.msg

libp2p.nimble

@@ -1,17 +1,17 @@
 mode = ScriptMode.Verbose
 
 packageName = "libp2p"
-version = "1.10.1"
+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",
+requires "nim >= 2.0.0",
   "nimcrypto >= 0.6.0 & < 0.7.0", "dnsclient >= 0.3.0 & < 0.4.0", "bearssl >= 0.2.5",
-  "chronicles >= 0.10.2", "chronos >= 4.0.3", "metrics", "secp256k1", "stew >= 0.4.0",
-  "websock", "unittest2", "results",
-  "https://github.com/status-im/nim-quic.git#a6c30263c95fc5ddb2ef4d197c09b282555c06b0"
+  "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)
@@ -30,7 +30,7 @@ proc runTest(filename: string, moreoptions: string = "") =
   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 = "") =
@@ -49,19 +49,16 @@ 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/testpubsub")
+  runTest("pubsub/testpubsub", "-d:libp2p_gossipsub_1_4")
 
 task testfilter, "Run PKI filter test":
   runTest("testpkifilter")
   runTest("testpkifilter", moreoptions = "-d:libp2p_pki_schemes=")
 
+task testintegration, "Runs integraion tests":
+  runTest("testintegration")
+
 task test, "Runs the test suite":
   runTest("testall")
   exec "nimble testfilter"

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

@@ -23,26 +23,45 @@ import
   stream/connection,
   multiaddress,
   crypto/crypto,
-  transports/[transport, tcptransport, memorytransport],
+  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.} =
+  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
 
@@ -51,7 +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
@@ -63,6 +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]
@@ -147,8 +170,23 @@ 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(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
@@ -158,15 +196,30 @@ proc withTransport*(
           TcpTransport.new(flags, upgr)
       )
       .build()
-  b.transports.add(prov)
-  b
+  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, privateKey: PrivateKey): 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):
@@ -174,14 +227,14 @@ when defined(libp2p_quic_support):
 
   proc withQuicTransport*(b: SwitchBuilder): SwitchBuilder {.public.} =
     b.withTransport(
-      proc(upgr: Upgrade, privateKey: PrivateKey): Transport =
-        QuicTransport.new(upgr, privateKey)
+      proc(config: TransportConfig): Transport =
+        QuicTransport.new(config.upgr, config.privateKey)
     )
 
 proc withMemoryTransport*(b: SwitchBuilder): SwitchBuilder {.public.} =
   b.withTransport(
-    proc(upgr: Upgrade, privateKey: PrivateKey): Transport =
-      MemoryTransport.new(upgr)
+    proc(config: TransportConfig): Transport =
+      MemoryTransport.new(config.upgr)
   )
 
 proc withRng*(b: SwitchBuilder, rng: ref HmacDrbgContext): SwitchBuilder {.public.} =
@@ -238,6 +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
@@ -289,10 +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, seckey))
+      transports.add(
+        tProvider(
+          TransportConfig(upgr: muxedUpgrade, privateKey: seckey, autotls: b.autotls)
+        )
+      )
     transports
 
   if b.secureManagers.len == 0:
@@ -310,6 +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,
@@ -323,9 +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:
@@ -339,13 +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,
@@ -356,28 +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, results
 import stew/base58
+import ./utils/sequninit
 
 export results
 
@@ -122,7 +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)
@@ -130,7 +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

@@ -140,7 +140,7 @@ proc triggerConnEvent*(
   except CancelledError as exc:
     raise exc
   except CatchableError as exc:
-    warn "Exception in triggerConnEvents",
+    warn "Exception in triggerConnEvent",
       description = exc.msg, peer = peerId, event = $event
 
 proc addPeerEventHandler*(
@@ -186,7 +186,7 @@ proc expectConnection*(
   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 = Future[Muxer].Raising([CancelledError]).init()

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"
 
@@ -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):
@@ -873,7 +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)
@@ -904,7 +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
@@ -913,7 +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
@@ -923,7 +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/ecnist.nim

@@ -23,6 +23,7 @@ import minasn1
 export minasn1.Asn1Error
 import stew/ctops
 import results
+import ../utils/sequninit
 
 import ../utility
 
@@ -458,7 +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)
@@ -471,7 +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)
@@ -483,7 +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)
@@ -494,7 +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)
@@ -507,7 +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)
@@ -519,7 +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)
@@ -929,7 +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](
@@ -943,7 +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/minasn1.nim

@@ -17,6 +17,7 @@ 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
@@ -679,15 +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

@@ -21,6 +21,7 @@ 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
 
@@ -124,7 +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()
 
@@ -169,7 +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
@@ -207,7 +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)
@@ -226,7 +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)
@@ -357,7 +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)
@@ -370,7 +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)
@@ -382,7 +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)
@@ -753,7 +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

@@ -11,6 +11,7 @@
 
 import bearssl/rand
 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

@@ -1,156 +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: (raises: [CancelledError]).} =
-  ## 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: (raises: [CancelledError, TransportPoolError]).} =
-  ## 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
-) {.async: (raises: [TransportPoolError]).} =
-  ## 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: (raises: [TransportPoolError, CancelledError]).} =
-  ## 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: (raises: [TransportPoolError, CancelledError]).} =
-  ## 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

@@ -11,7 +11,7 @@
 
 import chronos
 import results
-import peerid, stream/connection, transports/transport
+import peerid, stream/connection, transports/transport, muxers/muxer
 
 export results
 
@@ -49,6 +49,22 @@ method dial*(
 
   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,
     peerId: PeerId,
@@ -65,6 +81,11 @@ method dial*(
 method addTransport*(self: Dial, transport: Transport) {.base.} =
   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]] {.

libp2p/dialer.nim

@@ -43,20 +43,20 @@ type Dialer* = ref object of Dial
   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: (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:
           trace "Dialing canceled",
             description = exc.msg, peerId = peerId.get(default(PeerId))
@@ -104,12 +104,13 @@ proc expandDnsAddr(
 ): Future[seq[(MultiAddress, Opt[PeerId])]] {.
     async: (raises: [CancelledError, MaError, TransportAddressError, LPError])
 .} =
-  if not DNSADDR.matchPartial(address):
+  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:
@@ -121,21 +122,24 @@ proc expandDnsAddr(
         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")):
       var peerIdBytes: seq[byte]
       try:
         peerIdBytes = lastPart.protoArgument().tryGet()
-      except ResultError[string]:
-        raiseAssert "expandDnsAddr failed in protoArgument: " & getCurrentExceptionMsg()
+      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: (raises: [CancelledError, MaError, TransportAddressError, LPError])
@@ -145,7 +149,6 @@ proc dialAndUpgrade(
   for rawAddress in addrs:
     # resolve potential dnsaddr
     let addresses = await self.expandDnsAddr(peerId, rawAddress)
-
     for (expandedAddress, addrPeerId) in addresses:
       # DNS resolution
       let
@@ -156,6 +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):
@@ -178,7 +186,7 @@ proc internalConnect(
     dir = Direction.Out,
 ): Future[Muxer] {.async: (raises: [DialFailedError, CancelledError]).} =
   if Opt.some(self.localPeerId) == peerId:
-    raise newException(DialFailedError, "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())
@@ -186,8 +194,8 @@ proc internalConnect(
   defer:
     try:
       lock.release()
-    except AsyncLockError:
-      raiseAssert "lock must have been acquired in line above"
+    except AsyncLockError as e:
+      raiseAssert "lock must have been acquired in line above: " & e.msg
 
   if reuseConnection:
     peerId.withValue(peerId):
@@ -198,7 +206,9 @@ proc internalConnect(
     try:
       self.connManager.getOutgoingSlot(forceDial)
     except TooManyConnectionsError as exc:
-      raise newException(DialFailedError, exc.msg)
+      raise newException(
+        DialFailedError, "failed getOutgoingSlot in internalConnect: " & exc.msg, exc
+      )
 
   let muxed =
     try:
@@ -208,11 +218,15 @@ proc internalConnect(
       raise exc
     except CatchableError as exc:
       slot.release()
-      raise newException(DialFailedError, exc.msg)
+      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)
@@ -228,7 +242,11 @@ proc internalConnect(
   except CatchableError as exc:
     trace "Failed to finish outgoing upgrade", description = exc.msg
     await muxed.close()
-    raise newException(DialFailedError, "Failed to finish outgoing upgrade")
+    raise newException(
+      DialFailedError,
+      "Failed to finish outgoing upgrade in internalConnect: " & exc.msg,
+      exc,
+    )
 
 method connect*(
     self: Dialer,
@@ -260,21 +278,20 @@ 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: (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*(
@@ -289,13 +306,13 @@ 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]
@@ -309,14 +326,17 @@ method dial*(
   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"
+    trace "Dial canceled", description = exc.msg
     raise exc
   except CatchableError as exc:
     trace "Error dialing", description = exc.msg
-    raise newException(DialFailedError, exc.msg)
+    raise newException(DialFailedError, "failed dial existing: " & exc.msg)
 
 method dial*(
     self: Dialer,
@@ -347,17 +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, description = exc.msg
     await cleanup()
-    raise newException(DialFailedError, exc.msg)
+    raise newException(DialFailedError, "failed new dial: " & exc.msg, exc)
 
 method addTransport*(self: Dialer, t: Transport) =
   self.transports &= t

libp2p/discovery/discoverymngr.nim

@@ -113,7 +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]())
@@ -159,7 +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:
@@ -167,7 +167,7 @@ proc stop*(dm: DiscoveryManager) =
   for i in dm.interfaces:
     if isNil(i.advertiseLoop):
       continue
-    i.advertiseLoop.cancel()
+    i.advertiseLoop.cancelSoon()
 
 proc getPeer*(
     query: DiscoveryQuery
@@ -179,7 +179,7 @@ proc getPeer*(
   try:
     await getter or allFinished(query.futs)
   except CancelledError as exc:
-    getter.cancel()
+    getter.cancelSoon()
     raise exc
 
   if not finished(getter):

libp2p/errors.nim

@@ -27,7 +27,7 @@ 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
@@ -37,7 +37,7 @@ macro checkFutures*[F](futs: seq[F], exclude: untyped = []): untyped =
       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, description = exc.msg

libp2p/multiaddress.nim

@@ -27,6 +27,7 @@ import
   utility
 import stew/[base58, base32, endians2]
 export results, vbuffer, errors, utility
+import ./utils/sequninit
 
 logScope:
   topics = "libp2p multiaddress"
@@ -223,7 +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:
@@ -232,7 +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:
@@ -555,7 +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)
@@ -569,7 +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
@@ -643,7 +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():
@@ -842,6 +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:
@@ -1118,3 +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

@@ -18,6 +18,7 @@
 import tables
 import results
 import stew/[base32, base58, base64]
+import ./utils/sequninit
 
 type
   MultiBaseStatus* {.pure.} = enum
@@ -533,7 +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

@@ -10,6 +10,7 @@
 ## This module implements MultiCodec.
 
 {.push raises: [].}
+{.used.}
 
 import tables, hashes
 import vbuffer

libp2p/multihash.nim

@@ -22,6 +22,7 @@
 ## 2. MURMUR
 
 {.push raises: [].}
+{.used.}
 
 import tables
 import nimcrypto/[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

@@ -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
@@ -151,6 +150,10 @@ method close*(s: LPChannel) {.async: (raises: []).} =
 
   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

libp2p/muxers/mplex/mplex.nim

@@ -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

libp2p/muxers/muxer.nim

@@ -54,6 +54,10 @@ method newStream*(
 .} =
   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:
     await m.connection.close()

libp2p/muxers/yamux/yamux.nim

@@ -12,6 +12,7 @@
 import sequtils, std/[tables]
 import chronos, chronicles, metrics, stew/[endians2, byteutils, objects]
 import ../muxer, ../../stream/connection
+import ../../utils/[zeroqueue, sequninit]
 
 export muxer
 
@@ -134,12 +135,11 @@ proc windowUpdate(
   )
 
 type
-  ToSend =
-    tuple[
-      data: seq[byte],
-      sent: int,
-      fut: Future[void].Raising([CancelledError, LPStreamError]),
-    ]
+  ToSend = ref object
+    data: seq[byte]
+    sent: int
+    fut: Future[void].Raising([CancelledError, LPStreamError])
+
   YamuxChannel* = ref object of Connection
     id: uint32
     recvWindow: int
@@ -151,7 +151,7 @@ type
     opened: bool
     isSending: bool
     sendQueue: seq[ToSend]
-    recvQueue: seq[byte]
+    recvQueue: ZeroQueue
     isReset: bool
     remoteReset: bool
     closedRemotely: AsyncEvent
@@ -217,6 +217,19 @@ method closeImpl*(channel: YamuxChannel) {.async: (raises: []).} =
         discard
     await channel.actuallyClose()
 
+method closeWrite*(channel: YamuxChannel) {.async: (raises: []).} =
+  ## For yamux, closeWrite is the same as close - it implements half-close
+  await channel.close()
+
+proc clearQueues(channel: YamuxChannel, error: ref LPStreamEOFError = nil) =
+  for toSend in channel.sendQueue:
+    if error.isNil():
+      toSend.fut.complete()
+    else:
+      toSend.fut.fail(error)
+  channel.sendQueue = @[]
+  channel.recvQueue.clear()
+
 proc reset(channel: YamuxChannel, isLocal: bool = false) {.async: (raises: []).} =
   # If we reset locally, we want to flush up to a maximum of recvWindow
   # bytes. It's because the peer we're connected to can send us data before
@@ -226,10 +239,8 @@ proc reset(channel: YamuxChannel, isLocal: bool = false) {.async: (raises: []).}
   trace "Reset channel"
   channel.isReset = true
   channel.remoteReset = not isLocal
-  for (d, s, fut) in channel.sendQueue:
-    fut.fail(newLPStreamEOFError())
-  channel.sendQueue = @[]
-  channel.recvQueue = @[]
+  channel.clearQueues(newLPStreamEOFError())
+
   channel.sendWindow = 0
   if not channel.closedLocally:
     if isLocal and not channel.isSending:
@@ -257,7 +268,7 @@ proc updateRecvWindow(
     return
 
   let delta = channel.maxRecvWindow - inWindow
-  channel.recvWindow.inc(delta)
+  channel.recvWindow.inc(delta.int)
   await channel.conn.write(YamuxHeader.windowUpdate(channel.id, delta.uint32))
   trace "increasing the recvWindow", delta
 
@@ -278,8 +289,9 @@ method readOnce*(
         trace "stream is down when readOnce", channel = $channel
         newLPStreamConnDownError()
   if channel.isEof:
+    channel.clearQueues()
     raise newLPStreamRemoteClosedError()
-  if channel.recvQueue.len == 0:
+  if channel.recvQueue.isEmpty():
     channel.receivedData.clear()
     let
       closedRemotelyFut = channel.closedRemotely.wait()
@@ -290,28 +302,24 @@ method readOnce*(
       if not receivedDataFut.finished():
         await receivedDataFut.cancelAndWait()
     await closedRemotelyFut or receivedDataFut
-    if channel.closedRemotely.isSet() and channel.recvQueue.len == 0:
+    if channel.closedRemotely.isSet() and channel.recvQueue.isEmpty():
       channel.isEof = true
+      channel.clearQueues()
       return
         0 # we return 0 to indicate that the channel is closed for reading from now on
 
-  let toRead = min(channel.recvQueue.len, nbytes)
-
-  var p = cast[ptr UncheckedArray[byte]](pbytes)
-  toOpenArray(p, 0, nbytes - 1)[0 ..< toRead] =
-    channel.recvQueue.toOpenArray(0, toRead - 1)
-  channel.recvQueue = channel.recvQueue[toRead ..^ 1]
+  let consumed = channel.recvQueue.consumeTo(pbytes, nbytes)
 
   # We made some room in the recv buffer let the peer know
   await channel.updateRecvWindow()
   channel.activity = true
-  return toRead
+  return consumed
 
 proc gotDataFromRemote(
     channel: YamuxChannel, b: seq[byte]
 ) {.async: (raises: [CancelledError, LPStreamError]).} =
   channel.recvWindow -= b.len
-  channel.recvQueue = channel.recvQueue.concat(b)
+  channel.recvQueue.push(b)
   channel.receivedData.fire()
   when defined(libp2p_yamux_metrics):
     libp2p_yamux_recv_queue.observe(channel.recvQueue.len.int64)
@@ -320,17 +328,18 @@ proc gotDataFromRemote(
 proc setMaxRecvWindow*(channel: YamuxChannel, maxRecvWindow: int) =
   channel.maxRecvWindow = maxRecvWindow
 
-proc trySend(
-    channel: YamuxChannel
-) {.async: (raises: [CancelledError, LPStreamError]).} =
+proc sendLoop(channel: YamuxChannel) {.async: (raises: []).} =
   if channel.isSending:
     return
   channel.isSending = true
   defer:
     channel.isSending = false
 
-  while channel.sendQueue.len != 0:
-    channel.sendQueue.keepItIf(not (it.fut.cancelled() and it.sent == 0))
+  const NumBytesHeader = 12
+
+  while channel.sendQueue.len > 0:
+    channel.sendQueue.keepItIf(not it.fut.finished())
+
     if channel.sendWindow == 0:
       trace "trying to send while the sendWindow is empty"
       if channel.lengthSendQueueWithLimit() > channel.maxSendQueueSize:
@@ -342,54 +351,57 @@ proc trySend(
 
     let
       bytesAvailable = channel.lengthSendQueue()
-      toSend = min(channel.sendWindow, bytesAvailable)
+      numBytesToSend = min(channel.sendWindow, bytesAvailable)
     var
-      sendBuffer = newSeqUninitialized[byte](toSend + 12)
-      header = YamuxHeader.data(channel.id, toSend.uint32)
+      sendBuffer = newSeqUninit[byte](NumBytesHeader + numBytesToSend)
+      header = YamuxHeader.data(channel.id, numBytesToSend.uint32)
       inBuffer = 0
 
-    if toSend >= bytesAvailable and channel.closedLocally:
-      trace "last buffer we'll sent on this channel", toSend, bytesAvailable
+    if numBytesToSend >= bytesAvailable and channel.closedLocally:
+      trace "last buffer we will send on this channel", numBytesToSend, bytesAvailable
       header.flags.incl({Fin})
 
-    sendBuffer[0 ..< 12] = header.encode()
+    sendBuffer[0 ..< NumBytesHeader] = header.encode()
 
     var futures: seq[Future[void].Raising([CancelledError, LPStreamError])]
-    while inBuffer < toSend:
+    while inBuffer < numBytesToSend:
+      var toSend = channel.sendQueue[0]
       # concatenate the different message we try to send into one buffer
-      let (data, sent, fut) = channel.sendQueue[0]
-      let bufferToSend = min(data.len - sent, toSend - inBuffer)
+      let bufferToSend = min(toSend.data.len - toSend.sent, numBytesToSend - inBuffer)
 
-      sendBuffer.toOpenArray(12, 12 + toSend - 1)[
+      sendBuffer.toOpenArray(NumBytesHeader, NumBytesHeader + numBytesToSend - 1)[
         inBuffer ..< (inBuffer + bufferToSend)
-      ] = channel.sendQueue[0].data.toOpenArray(sent, sent + bufferToSend - 1)
+      ] = toSend.data.toOpenArray(toSend.sent, toSend.sent + bufferToSend - 1)
+
       channel.sendQueue[0].sent.inc(bufferToSend)
-      if channel.sendQueue[0].sent >= data.len:
+
+      if toSend.sent >= toSend.data.len:
         # if every byte of the message is in the buffer, add the write future to the
         # sequence of futures to be completed (or failed) when the buffer is sent
-        futures.add(fut)
+        futures.add(toSend.fut)
         channel.sendQueue.delete(0)
+
       inBuffer.inc(bufferToSend)
 
     trace "try to send the buffer", h = $header
-    channel.sendWindow.dec(toSend)
     try:
       await channel.conn.write(sendBuffer)
+      channel.sendWindow.dec(inBuffer)
     except CancelledError:
-      trace "cancelled sending the buffer"
-      for fut in futures.items():
-        fut.cancelSoon()
-      await channel.reset()
-      break
+      ## Just for compiler. This should never happen as sendLoop is started by asyncSpawn.
+      ## Therefore, no one owns that sendLoop's future and no one can cancel it.
+      discard
     except LPStreamError as exc:
-      trace "failed to send the buffer"
+      error "failed to send the buffer", description = exc.msg
       let connDown = newLPStreamConnDownError(exc)
-      for fut in futures.items():
+      for fut in futures:
         fut.fail(connDown)
       await channel.reset()
       break
-    for fut in futures.items():
+
+    for fut in futures:
       fut.complete()
+
     channel.activity = true
 
 method write*(
@@ -397,21 +409,29 @@ method write*(
 ): Future[void] {.async: (raises: [CancelledError, LPStreamError], raw: true).} =
   ## Write to yamux channel
   ##
-  result = newFuture[void]("Yamux Send")
+  var resFut = newFuture[void]("Yamux Send")
+
   if channel.remoteReset:
     trace "stream is reset when write", channel = $channel
-    result.fail(newLPStreamResetError())
-    return result
+    resFut.fail(newLPStreamResetError())
+    return resFut
+
   if channel.closedLocally or channel.isReset:
-    result.fail(newLPStreamClosedError())
-    return result
+    resFut.fail(newLPStreamClosedError())
+    return resFut
+
   if msg.len == 0:
-    result.complete()
-    return result
-  channel.sendQueue.add((msg, 0, result))
+    resFut.complete()
+    return resFut
+
+  channel.sendQueue.add(ToSend(data: msg, sent: 0, fut: resFut))
+
   when defined(libp2p_yamux_metrics):
     libp2p_yamux_send_queue.observe(channel.lengthSendQueue().int64)
-  asyncSpawn channel.trySend()
+
+  asyncSpawn channel.sendLoop()
+
+  return resFut
 
 proc open(channel: YamuxChannel) {.async: (raises: [CancelledError, LPStreamError]).} =
   ## Open a yamux channel by sending a window update with Syn or Ack flag
@@ -420,6 +440,8 @@ proc open(channel: YamuxChannel) {.async: (raises: [CancelledError, LPStreamErro
     trace "Try to open channel twice"
     return
   channel.opened = true
+  channel.isReset = false
+
   await channel.conn.write(
     YamuxHeader.windowUpdate(
       channel.id,
@@ -493,6 +515,7 @@ proc createStream(
   stream.initStream()
   stream.peerId = m.connection.peerId
   stream.observedAddr = m.connection.observedAddr
+  stream.localAddr = m.connection.localAddr
   stream.transportDir = m.connection.transportDir
   when defined(libp2p_agents_metrics):
     stream.shortAgent = m.connection.shortAgent
@@ -507,12 +530,19 @@ method close*(m: Yamux) {.async: (raises: []).} =
   if m.isClosed == true:
     trace "Already closed"
     return
-  m.isClosed = true
 
   trace "Closing yamux"
   let channels = toSeq(m.channels.values())
   for channel in channels:
-    await channel.reset(isLocal = true)
+    channel.clearQueues(newLPStreamEOFError())
+    channel.recvWindow = 0
+    channel.sendWindow = 0
+    channel.closedLocally = true
+    channel.isReset = true
+    channel.opened = false
+    channel.isClosed = true
+    await channel.remoteClosed()
+    channel.receivedData.fire()
   try:
     await m.connection.write(YamuxHeader.goAway(NormalTermination))
   except CancelledError as exc:
@@ -520,6 +550,8 @@ method close*(m: Yamux) {.async: (raises: []).} =
   except LPStreamError as exc:
     trace "failed to send goAway", description = exc.msg
   await m.connection.close()
+
+  m.isClosed = true
   trace "Closed yamux"
 
 proc handleStream(m: Yamux, channel: YamuxChannel) {.async: (raises: []).} =
@@ -578,31 +610,35 @@ method handle*(m: Yamux) {.async: (raises: []).} =
                 raise
                   newException(YamuxError, "Peer exhausted the recvWindow after reset")
               if header.length > 0:
-                var buffer = newSeqUninitialized[byte](header.length)
+                var buffer = newSeqUninit[byte](header.length)
                 await m.connection.readExactly(addr buffer[0], int(header.length))
-          do:
-            raise newException(YamuxError, "Unknown stream ID: " & $header.streamId)
+
+          # If we do not have a stream, likely we sent a RST and/or closed the stream
+          trace "unknown stream id", id = header.streamId
+
           continue
 
         let channel =
           try:
             m.channels[header.streamId]
-          except KeyError:
+          except KeyError as e:
             raise newException(
               YamuxError,
-              "Stream was cleaned up before handling data: " & $header.streamId,
+              "Stream was cleaned up before handling data: " & $header.streamId & " : " &
+                e.msg,
+              e,
             )
 
         if header.msgType == WindowUpdate:
           channel.sendWindow += int(header.length)
-          await channel.trySend()
+          asyncSpawn channel.sendLoop()
         else:
           if header.length.int > channel.recvWindow.int:
             # check before allocating the buffer
             raise newException(YamuxError, "Peer exhausted the recvWindow")
 
           if header.length > 0:
-            var buffer = newSeqUninitialized[byte](header.length)
+            var buffer = newSeqUninit[byte](header.length)
             await m.connection.readExactly(addr buffer[0], int(header.length))
             trace "Msg Rcv", description = shortLog(buffer)
             await channel.gotDataFromRemote(buffer)

libp2p/nameresolving/dnsresolver.nim

@@ -15,7 +15,8 @@ import
   chronicles,
   stew/byteutils,
   dnsclientpkg/[protocol, types],
-  ../utility
+  ../utility,
+  ../utils/sequninit
 
 import nameresolver
 
@@ -37,18 +38,18 @@ proc questionToBuf(address: string, kind: QKind): seq[byte] =
     let dataLen = requestStream.getPosition()
     requestStream.setPosition(0)
 
-    var buf = newSeq[byte](dataLen)
+    var buf = newSeqUninit[byte](dataLen)
     discard requestStream.readData(addr buf[0], dataLen)
     buf
   except IOError as exc:
     info "Failed to created DNS buffer", description = exc.msg
-    newSeq[byte](0)
+    newSeqUninit[byte](0)
   except OSError as exc:
     info "Failed to created DNS buffer", description = exc.msg
-    newSeq[byte](0)
+    newSeqUninit[byte](0)
   except ValueError as exc:
     info "Failed to created DNS buffer", description = exc.msg
-    newSeq[byte](0)
+    newSeqUninit[byte](0)
 
 proc getDnsResponse(
     dnsServer: TransportAddress, address: string, kind: QKind
@@ -78,23 +79,23 @@ proc getDnsResponse(
 
     try:
       await receivedDataFuture.wait(5.seconds) #unix default
-    except AsyncTimeoutError:
-      raise newException(IOError, "DNS server timeout")
+    except AsyncTimeoutError as e:
+      raise newException(IOError, "DNS server timeout: " & e.msg, e)
 
     let rawResponse = sock.getMessage()
     try:
       parseResponse(string.fromBytes(rawResponse))
     except IOError as exc:
-      raise exc
+      raise newException(IOError, "Failed to parse DNS response: " & exc.msg, exc)
     except OSError as exc:
-      raise exc
+      raise newException(OSError, "Failed to parse DNS response: " & exc.msg, exc)
     except ValueError as exc:
-      raise exc
+      raise newException(ValueError, "Failed to parse DNS response: " & exc.msg, exc)
     except Exception as exc:
       # Nim 1.6: parseResponse can has a raises: [Exception, ..] because of
       # https://github.com/nim-lang/Nim/commit/035134de429b5d99c5607c5fae912762bebb6008
       # it can't actually raise though
-      raiseAssert exc.msg
+      raiseAssert "Exception parsing DN response: " & exc.msg
   finally:
     await sock.closeWait()
 

libp2p/peerid.nim

@@ -11,6 +11,7 @@
 
 {.push raises: [].}
 {.push public.}
+{.used.}
 
 import
   std/[hashes, strutils],
@@ -23,7 +24,8 @@ import
   ./multicodec,
   ./multihash,
   ./vbuffer,
-  ./protobuf/minprotobuf
+  ./protobuf/minprotobuf,
+  ./utils/sequninit
 
 export results, utility
 
@@ -141,7 +143,7 @@ func init*(pid: var PeerId, data: string): bool =
   ## Initialize peer id from base58 encoded string representation.
   ##
   ## Returns ``true`` if peer was successfully initialiazed.
-  var p = newSeq[byte](len(data) + 4)
+  var p = newSeqUninit[byte](len(data) + 4)
   var length = 0
   if Base58.decode(data, p, length) == Base58Status.Success:
     p.setLen(length)

libp2p/peeridauth/client.nim

@@ -0,0 +1,345 @@
+# 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 base64, json, strutils, uri, times, stew/byteutils
+import chronos, chronos/apps/http/httpclient, results, chronicles
+import ../peerinfo, ../crypto/crypto, ../varint.nim
+
+logScope:
+  topics = "libp2p peeridauth"
+
+const
+  NimLibp2pUserAgent = "nim-libp2p"
+  PeerIDAuthPrefix* = "libp2p-PeerID"
+  ChallengeCharset = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+  ChallengeDefaultLen = 48
+
+export Domain
+
+type PeerIDAuthClient* = ref object of RootObj
+  session: HttpSessionRef
+  rng: ref HmacDrbgContext
+
+type PeerIDAuthError* = object of LPError
+
+type PeerIDAuthResponse* = object
+  status*: int
+  headers*: HttpTable
+  body*: seq[byte]
+
+type BearerToken* = object
+  token*: string
+  expires*: Opt[DateTime]
+
+type PeerIDAuthOpaque* = string
+type PeerIDAuthSignature* = string
+type PeerIDAuthChallenge* = string
+
+type PeerIDAuthAuthenticationResponse* = object
+  challengeClient*: PeerIDAuthChallenge
+  opaque*: PeerIDAuthOpaque
+  serverPubkey*: PublicKey
+
+type PeerIDAuthAuthorizationResponse* = object
+  sig*: PeerIDAuthSignature
+  bearer*: BearerToken
+  response*: PeerIDAuthResponse
+
+type SigParam = object
+  k: string
+  v: seq[byte]
+
+proc new*(
+    T: typedesc[PeerIDAuthClient], rng: ref HmacDrbgContext = newRng()
+): PeerIDAuthClient =
+  PeerIDAuthClient(session: HttpSessionRef.new(), rng: rng)
+
+proc sampleChar(
+    ctx: var HmacDrbgContext, choices: string
+): char {.raises: [ValueError].} =
+  ## Samples a random character from the input string using the DRBG context
+  if choices.len == 0:
+    raise newException(ValueError, "Cannot sample from an empty string")
+  var idx: uint32
+  ctx.generate(idx)
+  return choices[uint32(idx mod uint32(choices.len))]
+
+proc randomChallenge(
+    rng: ref HmacDrbgContext, challengeLen: int = ChallengeDefaultLen
+): PeerIDAuthChallenge {.raises: [PeerIDAuthError].} =
+  var rng = rng[]
+  var challenge = ""
+  try:
+    for _ in 0 ..< challengeLen:
+      challenge.add(rng.sampleChar(ChallengeCharset))
+  except ValueError as exc:
+    raise newException(PeerIDAuthError, "Failed to generate challenge", exc)
+  PeerIDAuthChallenge(challenge)
+
+proc extractField(data, key: string): string {.raises: [PeerIDAuthError].} =
+  # Helper to extract quoted value from key
+  for segment in data.split(","):
+    if key in segment:
+      return segment.split("=", 1)[1].strip(chars = {' ', '"'})
+  raise newException(PeerIDAuthError, "Failed to find " & key & " in " & data)
+
+proc genDataToSign(
+    parts: seq[SigParam], prefix: string = PeerIDAuthPrefix
+): seq[byte] {.raises: [PeerIDAuthError].} =
+  var buf: seq[byte] = prefix.toBytes()
+  for p in parts:
+    let varintLen = PB.encodeVarint(hint(p.k.len + p.v.len + 1)).valueOr:
+      raise newException(PeerIDAuthError, "could not encode fields length to varint")
+    buf.add varintLen
+    buf.add (p.k & "=").toBytes()
+    buf.add p.v
+  return buf
+
+proc getSigParams(
+    clientSender: bool, hostname: string, challenge: string, publicKey: PublicKey
+): seq[SigParam] =
+  if clientSender:
+    @[
+      SigParam(k: "challenge-client", v: challenge.toBytes()),
+      SigParam(k: "hostname", v: hostname.toBytes()),
+      SigParam(k: "server-public-key", v: publicKey.getBytes().get()),
+    ]
+  else:
+    @[
+      SigParam(k: "challenge-server", v: challenge.toBytes()),
+      SigParam(k: "client-public-key", v: publicKey.getBytes().get()),
+      SigParam(k: "hostname", v: hostname.toBytes()),
+    ]
+
+proc sign(
+    privateKey: PrivateKey,
+    challenge: PeerIDAuthChallenge,
+    publicKey: PublicKey,
+    hostname: string,
+    clientSender: bool = true,
+): PeerIDAuthSignature {.raises: [PeerIDAuthError].} =
+  let bytesToSign =
+    getSigParams(clientSender, hostname, challenge, publicKey).genDataToSign()
+  PeerIDAuthSignature(
+    base64.encode(privateKey.sign(bytesToSign).get().getBytes(), safe = true)
+  )
+
+proc checkSignature*(
+    serverSig: PeerIDAuthSignature,
+    serverPublicKey: PublicKey,
+    challengeServer: PeerIDAuthChallenge,
+    clientPublicKey: PublicKey,
+    hostname: string,
+): bool {.raises: [PeerIDAuthError].} =
+  let bytesToSign =
+    getSigParams(false, hostname, challengeServer, clientPublicKey).genDataToSign()
+  var serverSignature: Signature
+  try:
+    if not serverSignature.init(base64.decode(serverSig).toBytes()):
+      raise newException(
+        PeerIDAuthError, "Failed to initialize Signature from base64 encoded sig"
+      )
+  except ValueError as exc:
+    raise newException(PeerIDAuthError, "Failed to decode server's signature", exc)
+
+  serverSignature.verify(
+    bytesToSign.toOpenArray(0, bytesToSign.len - 1), serverPublicKey
+  )
+
+method post*(
+    self: PeerIDAuthClient, uri: Uri, payload: string, authHeader: string
+): Future[PeerIDAuthResponse] {.async: (raises: [HttpError, CancelledError]), base.} =
+  let rawResponse = await HttpClientRequestRef
+  .post(
+    self.session,
+    $uri,
+    body = payload,
+    headers = [
+      ("Content-Type", "application/json"),
+      ("User-Agent", NimLibp2pUserAgent),
+      ("Authorization", authHeader),
+    ],
+  )
+  .get()
+  .send()
+
+  PeerIDAuthResponse(
+    status: rawResponse.status,
+    headers: rawResponse.headers,
+    body: await rawResponse.getBodyBytes(),
+  )
+
+method get*(
+    self: PeerIDAuthClient, uri: Uri
+): Future[PeerIDAuthResponse] {.
+    async: (raises: [PeerIDAuthError, HttpError, CancelledError]), base
+.} =
+  if self.session.isNil():
+    raise newException(PeerIDAuthError, "Session is nil")
+  let req = HttpClientRequestRef.get(self.session, $uri).valueOr:
+    raise newException(PeerIDAuthError, "Could not get request obj")
+  let rawResponse = await req.send()
+  PeerIDAuthResponse(
+    status: rawResponse.status,
+    headers: rawResponse.headers,
+    body: await rawResponse.getBodyBytes(),
+  )
+
+proc requestAuthentication*(
+    self: PeerIDAuthClient, uri: Uri
+): Future[PeerIDAuthAuthenticationResponse] {.
+    async: (raises: [PeerIDAuthError, CancelledError])
+.} =
+  let response =
+    try:
+      await self.get(uri)
+    except HttpError as exc:
+      raise newException(PeerIDAuthError, "Failed to start PeerID Auth", exc)
+
+  let wwwAuthenticate = response.headers.getString("WWW-Authenticate")
+  if wwwAuthenticate == "":
+    raise newException(PeerIDAuthError, "WWW-authenticate not present in response")
+
+  let serverPubkey: PublicKey =
+    try:
+      PublicKey.init(decode(extractField(wwwAuthenticate, "public-key")).toBytes()).valueOr:
+        raise newException(PeerIDAuthError, "Failed to initialize server public-key")
+    except ValueError as exc:
+      raise newException(PeerIDAuthError, "Failed to decode server public-key", exc)
+
+  PeerIDAuthAuthenticationResponse(
+    challengeClient: extractField(wwwAuthenticate, "challenge-client"),
+    opaque: extractField(wwwAuthenticate, "opaque"),
+    serverPubkey: serverPubkey,
+  )
+
+proc pubkeyBytes*(pubkey: PublicKey): seq[byte] {.raises: [PeerIDAuthError].} =
+  try:
+    pubkey.getBytes().valueOr:
+      raise
+        newException(PeerIDAuthError, "Failed to get bytes from PeerInfo's publicKey")
+  except ValueError as exc:
+    raise newException(
+      PeerIDAuthError, "Failed to get bytes from PeerInfo's publicKey", exc
+    )
+
+proc parse3339DateTime(
+    timeStr: string
+): DateTime {.raises: [ValueError, TimeParseError].} =
+  let parts = timeStr.split('.')
+  let base = parse(parts[0], "yyyy-MM-dd'T'HH:mm:ss")
+  let millis = parseInt(parts[1].strip(chars = {'Z'}))
+  result = base + initDuration(milliseconds = millis)
+
+proc requestAuthorization*(
+    self: PeerIDAuthClient,
+    peerInfo: PeerInfo,
+    uri: Uri,
+    challengeClient: PeerIDAuthChallenge,
+    challengeServer: PeerIDAuthChallenge,
+    serverPubkey: PublicKey,
+    opaque: PeerIDAuthOpaque,
+    payload: auto,
+): Future[PeerIDAuthAuthorizationResponse] {.
+    async: (raises: [PeerIDAuthError, CancelledError])
+.} =
+  let clientPubkeyB64 = peerInfo.publicKey.pubkeyBytes().encode(safe = true)
+  let sig = peerInfo.privateKey.sign(challengeClient, serverPubkey, uri.hostname)
+  let authHeader =
+    PeerIDAuthPrefix & " public-key=\"" & clientPubkeyB64 & "\"" & ", opaque=\"" & opaque &
+    "\"" & ", challenge-server=\"" & challengeServer & "\"" & ", sig=\"" & sig & "\""
+  let response =
+    try:
+      await self.post(uri, $payload, authHeader)
+    except HttpError as exc:
+      raise newException(
+        PeerIDAuthError, "Failed to send Authorization for PeerID Auth", exc
+      )
+
+  let authenticationInfo = response.headers.getString("authentication-info")
+
+  let bearerExpires =
+    try:
+      Opt.some(parse3339DateTime(extractField(authenticationInfo, "expires")))
+    except ValueError, PeerIDAuthError, TimeParseError:
+      Opt.none(DateTime)
+
+  PeerIDAuthAuthorizationResponse(
+    sig: PeerIDAuthSignature(extractField(authenticationInfo, "sig")),
+    bearer: BearerToken(
+      token: extractField(authenticationInfo, "bearer"), expires: bearerExpires
+    ),
+    response: response,
+  )
+
+proc sendWithoutBearer(
+    self: PeerIDAuthClient, uri: Uri, peerInfo: PeerInfo, payload: auto
+): Future[(BearerToken, PeerIDAuthResponse)] {.
+    async: (raises: [PeerIDAuthError, CancelledError])
+.} =
+  # Authenticate in three ways as per the PeerID Auth spec
+  # https://github.com/libp2p/specs/blob/master/http/peer-id-auth.md
+
+  let authenticationResponse = await self.requestAuthentication(uri)
+
+  let challengeServer = self.rng.randomChallenge()
+  let authorizationResponse = await self.requestAuthorization(
+    peerInfo, uri, authenticationResponse.challengeClient, challengeServer,
+    authenticationResponse.serverPubkey, authenticationResponse.opaque, payload,
+  )
+
+  if not checkSignature(
+    authorizationResponse.sig, authenticationResponse.serverPubkey, challengeServer,
+    peerInfo.publicKey, uri.hostname,
+  ):
+    raise newException(PeerIDAuthError, "Failed to validate server's signature")
+
+  return (authorizationResponse.bearer, authorizationResponse.response)
+
+proc sendWithBearer(
+    self: PeerIDAuthClient,
+    uri: Uri,
+    peerInfo: PeerInfo,
+    payload: auto,
+    bearer: BearerToken,
+): Future[(BearerToken, PeerIDAuthResponse)] {.
+    async: (raises: [PeerIDAuthError, CancelledError])
+.} =
+  if bearer.expires.isSome() and DateTime(bearer.expires.get) <= now():
+    raise newException(PeerIDAuthError, "Bearer expired")
+  let authHeader = PeerIDAuthPrefix & " bearer=\"" & bearer.token & "\""
+  let response =
+    try:
+      await self.post(uri, $payload, authHeader)
+    except HttpError as exc:
+      raise newException(
+        PeerIDAuthError, "Failed to send request with bearer token for PeerID Auth", exc
+      )
+  return (bearer, response)
+
+proc send*(
+    self: PeerIDAuthClient,
+    uri: Uri,
+    peerInfo: PeerInfo,
+    payload: auto,
+    bearer: Opt[BearerToken] = Opt.none(BearerToken),
+): Future[(BearerToken, PeerIDAuthResponse)] {.
+    async: (raises: [PeerIDAuthError, CancelledError])
+.} =
+  if bearer.isSome():
+    await self.sendWithBearer(uri, peerInfo, payload, bearer.get)
+  else:
+    await self.sendWithoutBearer(uri, peerInfo, payload)
+
+proc close*(
+    self: PeerIDAuthClient
+): Future[void] {.async: (raises: [CancelledError]).} =
+  await self.session.closeWait()

libp2p/peeridauth/mockclient.nim

@@ -0,0 +1,40 @@
+# 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 uri
+import chronos, chronos/apps/http/httpclient
+import ../crypto/crypto, ./client
+
+export client
+
+type MockPeerIDAuthClient* = ref object of PeerIDAuthClient
+  mockedStatus*: int
+  mockedHeaders*: HttpTable
+  mockedBody*: seq[byte]
+
+proc new*(
+    T: typedesc[MockPeerIDAuthClient], rng: ref HmacDrbgContext
+): MockPeerIDAuthClient {.raises: [PeerIDAuthError].} =
+  MockPeerIDAuthClient(session: HttpSessionRef.new(), rng: rng)
+
+method post*(
+    self: MockPeerIDAuthClient, uri: Uri, payload: string, authHeader: string
+): Future[PeerIDAuthResponse] {.async: (raises: [HttpError, CancelledError]).} =
+  PeerIDAuthResponse(
+    status: self.mockedStatus, headers: self.mockedHeaders, body: self.mockedBody
+  )
+
+method get*(
+    self: MockPeerIDAuthClient, uri: Uri
+): Future[PeerIDAuthResponse] {.async: (raises: [HttpError, CancelledError]).} =
+  PeerIDAuthResponse(
+    status: self.mockedStatus, headers: self.mockedHeaders, body: self.mockedBody
+  )

libp2p/peerinfo.nim

@@ -52,12 +52,16 @@ func shortLog*(p: PeerInfo): auto =
 chronicles.formatIt(PeerInfo):
   shortLog(it)
 
+proc expandAddrs*(
+    p: PeerInfo
+): Future[seq[MultiAddress]] {.async: (raises: [CancelledError]).} =
+  var addrs = p.listenAddrs
+  for mapper in p.addressMappers:
+    addrs = await mapper(addrs)
+  addrs
+
 proc update*(p: PeerInfo) {.async: (raises: [CancelledError]).} =
-  # p.addrs.len == 0 overrides addrs only if it is the first time update is being executed or if the field is empty.
-  # p.addressMappers.len == 0 is for when all addressMappers have been removed,
-  # and we wish to have addrs in its initial state, i.e., a copy of listenAddrs.
-  if p.addrs.len == 0 or p.addressMappers.len == 0:
-    p.addrs = p.listenAddrs
+  p.addrs = p.listenAddrs
   for mapper in p.addressMappers:
     p.addrs = await mapper(p.addrs)
 
@@ -89,6 +93,10 @@ proc parseFullAddress*(ma: MultiAddress): MaResult[(PeerId, MultiAddress)] =
 proc parseFullAddress*(ma: string | seq[byte]): MaResult[(PeerId, MultiAddress)] =
   parseFullAddress(?MultiAddress.init(ma))
 
+proc toFullAddress*(peerId: PeerId, ma: MultiAddress): MaResult[MultiAddress] =
+  let peerIdPart = ?MultiAddress.init(multiCodec("p2p"), peerId.data)
+  concat(ma, peerIdPart)
+
 proc new*(
     p: typedesc[PeerInfo],
     key: PrivateKey,
@@ -101,8 +109,10 @@ proc new*(
   let pubkey =
     try:
       key.getPublicKey().tryGet()
-    except CatchableError:
-      raise newException(PeerInfoError, "invalid private key")
+    except CatchableError as e:
+      raise newException(
+        PeerInfoError, "invalid private key creating PeerInfo: " & e.msg, e
+      )
 
   let peerId = PeerId.init(key).tryGet()
 

libp2p/peerstore.nim

@@ -214,7 +214,7 @@ proc identify*(
             info.agentVersion.get("").split("/")[0].safeToLowerAscii().get("")
         if KnownLibP2PAgentsSeq.contains(shortAgent):
           knownAgent = shortAgent
-        muxer.connection.setShortAgent(knownAgent)
+        muxer.setShortAgent(knownAgent)
 
       peerStore.updatePeerInfo(info, stream.observedAddr)
   finally:

libp2p/protobuf/minprotobuf.nim

@@ -12,6 +12,7 @@
 {.push raises: [].}
 
 import ../varint, ../utility, stew/endians2, results
+import ../utils/sequninit
 export results, utility
 
 {.push public.}
@@ -142,18 +143,17 @@ proc initProtoBuffer*(
   result.options = options
 
 proc initProtoBuffer*(options: set[ProtoFlags] = {}): ProtoBuffer =
-  ## Initialize ProtoBuffer with new sequence of capacity ``cap``.
-  result.buffer = newSeq[byte]()
+  ## Initialize ProtoBuffer with new sequence of capacity ``cap``
   result.options = options
   if WithVarintLength in options:
     # Our buffer will start from position 10, so we can store length of buffer
     # in [0, 9].
-    result.buffer.setLen(10)
+    result.buffer = newSeqUninit[byte](10)
     result.offset = 10
   elif {WithUint32LeLength, WithUint32BeLength} * options != {}:
     # Our buffer will start from position 4, so we can store length of buffer
     # in [0, 3].
-    result.buffer.setLen(4)
+    result.buffer = newSeqUninit[byte](4)
     result.offset = 4
 
 proc write*[T: ProtoScalar](pb: var ProtoBuffer, field: int, value: T) =

libp2p/protocols/connectivity/autonat/client.nim

@@ -12,7 +12,7 @@
 import results
 import chronos, chronicles
 import ../../../switch, ../../../multiaddress, ../../../peerid
-import core
+import types
 
 logScope:
   topics = "libp2p autonat"
@@ -87,7 +87,7 @@ method dialMe*(
   except CancelledError as e:
     raise e
   except CatchableError as e:
-    raise newException(AutonatError, "read Dial response failed", e)
+    raise newException(AutonatError, "read Dial response failed: " & e.msg, e)
 
   let response = getResponseOrRaise(AutonatMsg.decode(respBytes))
 

libp2p/protocols/connectivity/autonat/server.nim

@@ -20,9 +20,9 @@ import
   ../../../peerid,
   ../../../utils/[semaphore, future],
   ../../../errors
-import core
+import types
 
-export core
+export types
 
 logScope:
   topics = "libp2p autonat"
@@ -105,7 +105,7 @@ proc tryDial(
     autonat.sem.release()
     for f in futs:
       if not f.finished():
-        f.cancel()
+        f.cancelSoon()
 
 proc handleDial(autonat: Autonat, conn: Connection, msg: AutonatMsg): Future[void] =
   let dial = msg.dial.valueOr:

libp2p/protocols/connectivity/autonat/service.nim

@@ -14,11 +14,11 @@ import chronos, metrics
 import ../../../switch
 import ../../../wire
 import client
-from core import NetworkReachability, AutonatUnreachableError
+from types import NetworkReachability, AutonatUnreachableError
 import ../../../utils/heartbeat
 import ../../../crypto/crypto
 
-export core.NetworkReachability
+export NetworkReachability
 
 logScope:
   topics = "libp2p autonatservice"

libp2p/protocols/connectivity/autonat/types.nim

@@ -58,6 +58,9 @@ type
     NotReachable
     Reachable
 
+proc isReachable*(self: NetworkReachability): bool =
+  self == NetworkReachability.Reachable
+
 proc encode(p: AutonatPeerInfo): ProtoBuffer =
   result = initProtoBuffer()
   p.id.withValue(id):

libp2p/protocols/connectivity/autonatv2/client.nim

@@ -0,0 +1,202 @@
+# 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 results
+import chronos, chronicles, tables
+import
+  ../../protocol,
+  ../../../switch,
+  ../../../multiaddress,
+  ../../../multicodec,
+  ../../../peerid,
+  ../../../protobuf/minprotobuf,
+  ./types,
+  ./utils
+
+logScope:
+  topics = "libp2p autonat v2 client"
+
+const
+  MaxAcceptedDialDataRequest* = 100 * 1024 # 100 KB
+  MaxDialDataResponsePayload* = 1024
+  DefaultDialBackTimeout* = 5.seconds
+
+type AutonatV2Client* = ref object of LPProtocol
+  dialer*: Dial
+  dialBackTimeout: Duration
+  rng: ref HmacDrbgContext
+  expectedNonces: Table[Nonce, Opt[MultiAddress]]
+
+proc handleDialBack(
+    self: AutonatV2Client, conn: Connection, dialBack: DialBack
+) {.async: (raises: [CancelledError, AutonatV2Error, LPStreamError]).} =
+  debug "Handling DialBack",
+    conn = conn, localAddr = conn.localAddr, observedAddr = conn.observedAddr
+
+  if not self.expectedNonces.hasKey(dialBack.nonce):
+    error "Not expecting this nonce", nonce = dialBack.nonce
+    return
+
+  conn.localAddr.withValue(localAddr):
+    debug "Setting expectedNonces",
+      nonce = dialBack.nonce, localAddr = Opt.some(localAddr)
+    self.expectedNonces[dialBack.nonce] = Opt.some(localAddr)
+  else:
+    error "Unable to get localAddr from connection"
+    return
+
+  trace "Sending DialBackResponse"
+  await conn.writeLp(DialBackResponse(status: DialBackStatus.Ok).encode().buffer)
+
+proc new*(
+    T: typedesc[AutonatV2Client],
+    rng: ref HmacDrbgContext,
+    dialBackTimeout: Duration = DefaultDialBackTimeout,
+): T =
+  let client = T(rng: rng, dialBackTimeout: dialBackTimeout)
+
+  # handler for DialBack messages
+  proc handleStream(
+      conn: Connection, proto: string
+  ) {.async: (raises: [CancelledError]).} =
+    try:
+      let dialBack = DialBack.decode(initProtoBuffer(await conn.readLp(DialBackLpSize))).valueOr:
+        trace "Unable to decode DialBack"
+        return
+      if not await client.handleDialBack(conn, dialBack).withTimeout(
+        client.dialBackTimeout
+      ):
+        trace "Sending DialBackResponse timed out"
+    except CancelledError as exc:
+      raise exc
+    except LPStreamRemoteClosedError as exc:
+      debug "Connection closed by peer", description = exc.msg, peer = conn.peerId
+    except LPStreamError as exc:
+      debug "Connection closed by peer", description = exc.msg, peer = conn.peerId
+
+  client.handler = handleStream
+  client.codec = $AutonatV2Codec.DialBack
+  client
+
+proc setup*(self: AutonatV2Client, switch: Switch) =
+  self.dialer = switch.dialer
+
+proc handleDialDataRequest*(
+    conn: Connection, req: DialDataRequest
+): Future[DialResponse] {.
+    async: (raises: [CancelledError, AutonatV2Error, LPStreamError])
+.} =
+  debug "Received DialDataRequest",
+    numBytes = req.numBytes, maxAcceptedNumBytes = MaxAcceptedDialDataRequest
+
+  if req.numBytes > MaxAcceptedDialDataRequest:
+    raise newException(
+      AutonatV2Error, "Rejecting DialDataRequest: numBytes is greater than the maximum"
+    )
+
+  # send required data
+  var msg = AutonatV2Msg(
+    msgType: MsgType.DialDataResponse,
+    dialDataResp: DialDataResponse(data: newSeq[byte](MaxDialDataResponsePayload)),
+  )
+  let messagesToSend =
+    (req.numBytes + MaxDialDataResponsePayload - 1) div MaxDialDataResponsePayload
+  for i in 0 ..< messagesToSend:
+    await conn.writeLp(msg.encode().buffer)
+    debug "Sending DialDataResponse", i = i, messagesToSend = messagesToSend
+
+  # get DialResponse
+  msg = AutonatV2Msg.decode(initProtoBuffer(await conn.readLp(AutonatV2MsgLpSize))).valueOr:
+    raise newException(AutonatV2Error, "Unable to decode AutonatV2Msg")
+
+  debug "Received message", msgType = msg.msgType
+  if msg.msgType != MsgType.DialResponse:
+    raise
+      newException(AutonatV2Error, "Expecting DialResponse, but got " & $msg.msgType)
+
+  return msg.dialResp
+
+proc checkAddrIdx(
+    self: AutonatV2Client, addrIdx: AddrIdx, testAddrs: seq[MultiAddress], nonce: Nonce
+): bool {.raises: [AutonatV2Error].} =
+  debug "checking addrs", addrIdx = addrIdx, testAddrs = testAddrs, nonce = nonce
+  let dialBackAddrs = self.expectedNonces.getOrDefault(nonce).valueOr:
+    debug "Not expecting this nonce",
+      nonce = nonce, expectedNonces = self.expectedNonces
+    return false
+
+  if addrIdx.int >= testAddrs.len:
+    debug "addrIdx outside of testAddrs range",
+      addrIdx = addrIdx, testAddrs = testAddrs, testAddrsLen = testAddrs.len
+    return false
+
+  let dialRespAddrs = testAddrs[addrIdx]
+  if not areAddrsConsistent(dialRespAddrs, dialBackAddrs):
+    debug "Invalid addrIdx: got DialBack in another address",
+      addrIdx = addrIdx, dialBackAddrs = dialBackAddrs, dialRespAddrs = dialRespAddrs
+    return false
+  true
+
+method sendDialRequest*(
+    self: AutonatV2Client, pid: PeerId, testAddrs: seq[MultiAddress]
+): Future[AutonatV2Response] {.
+    base,
+    async: (raises: [AutonatV2Error, CancelledError, DialFailedError, LPStreamError])
+.} =
+  ## Dials peer with `pid` and requests that it tries connecting to `testAddrs`
+
+  let nonce = self.rng[].generate(Nonce)
+  self.expectedNonces[nonce] = Opt.none(MultiAddress)
+
+  var dialResp: DialResponse
+  try:
+    let conn = await self.dialer.dial(pid, @[$AutonatV2Codec.DialRequest])
+    defer:
+      await conn.close()
+
+    # send dialRequest
+    await conn.writeLp(
+      AutonatV2Msg(
+        msgType: MsgType.DialRequest,
+        dialReq: DialRequest(addrs: testAddrs, nonce: nonce),
+      ).encode().buffer
+    )
+    let msg = AutonatV2Msg.decode(
+      initProtoBuffer(await conn.readLp(AutonatV2MsgLpSize))
+    ).valueOr:
+      raise newException(AutonatV2Error, "Unable to decode AutonatV2Msg")
+
+    dialResp =
+      case msg.msgType
+      of MsgType.DialResponse:
+        msg.dialResp
+      of MsgType.DialDataRequest:
+        await conn.handleDialDataRequest(msg.dialDataReq)
+      else:
+        raise newException(
+          AutonatV2Error,
+          "Expecting DialResponse or DialDataRequest, but got " & $msg.msgType,
+        )
+    debug "Received DialResponse", dialResp = dialResp
+
+    dialResp.dialStatus.withValue(dialStatus):
+      if dialStatus == DialStatus.Ok:
+        dialResp.addrIdx.withValue(addrIdx):
+          if not self.checkAddrIdx(addrIdx, testAddrs, nonce):
+            raise newException(
+              AutonatV2Error, "Invalid addrIdx " & $addrIdx & " in DialResponse"
+            )
+  except LPStreamRemoteClosedError as exc:
+    error "Stream reset by server", description = exc.msg, peer = pid
+  finally:
+    # rollback any changes
+    self.expectedNonces.del(nonce)
+  return dialResp.asAutonatV2Response(testAddrs)

libp2p/protocols/connectivity/autonatv2/mock.nim

@@ -0,0 +1,65 @@
+# 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 results
+import chronos, chronicles
+import
+  ../../../../libp2p/
+    [
+      switch,
+      muxers/muxer,
+      dialer,
+      multiaddress,
+      multicodec,
+      peerid,
+      protobuf/minprotobuf,
+    ],
+  ../../protocol,
+  ./types,
+  ./server
+
+type AutonatV2Mock* = ref object of LPProtocol
+  config*: AutonatV2Config
+  response*: ProtoBuffer
+
+proc new*(
+    T: typedesc[AutonatV2Mock], config: AutonatV2Config = AutonatV2Config.new()
+): T =
+  let autonatV2 = T(config: config)
+  proc handleStream(
+      conn: Connection, proto: string
+  ) {.async: (raises: [CancelledError]).} =
+    defer:
+      await conn.close()
+
+    try:
+      let msg = AutonatV2Msg.decode(
+        initProtoBuffer(await conn.readLp(AutonatV2MsgLpSize))
+      ).valueOr:
+        return
+      if msg.msgType != MsgType.DialRequest:
+        return
+    except LPStreamError:
+      return
+
+    try:
+      # return mocked message
+      await conn.writeLp(autonatV2.response.buffer)
+    except CancelledError as exc:
+      raise exc
+    except LPStreamRemoteClosedError:
+      discard
+    except LPStreamError:
+      discard
+
+  autonatV2.handler = handleStream
+  autonatV2.codec = $AutonatV2Codec.DialRequest
+  autonatV2