SCP hang with interop fix

.github/workflows/scp-test.yml

@@ -0,0 +1,107 @@
+name: wolfSSH SCP Test
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ '*' ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  create_matrix:
+    runs-on: ubuntu-latest
+    outputs:
+        versions: ${{ steps.json.outputs.versions }}
+    steps:
+      - name: Create wolfSSL version matrix
+        id: json
+        run: |
+          current=`curl -s https://api.github.com/repos/wolfssl/wolfssl/releases | grep tag_name | cut -d : -f 2,3 | tr -d \" | tr -d , | tr -d ' ' | head -1`
+          last=`curl -s https://api.github.com/repos/wolfssl/wolfssl/releases | grep tag_name | cut -d : -f 2,3 | tr -d \" | tr -d , | tr -d ' ' | head -2 | tail -1`
+          VERSIONS=$(echo "[ \"master\", \"$current\", \"$last\" ]")
+          echo "wolfSSL versions found: $VERSIONS"
+          echo "versions=$VERSIONS" >> $GITHUB_OUTPUT
+
+  build_wolfssl:
+    needs: create_matrix
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest ]
+        wolfssl: ${{ fromJson(needs.create_matrix.outputs['versions']) }}
+    name: Build wolfssl
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 4
+    steps:
+      - name: Checking cache for wolfssl
+        uses: actions/cache@v4
+        id: cache-wolfssl
+        with:
+          path: build-dir/
+          key: wolfssh-sshd-wolfssl-${{ matrix.wolfssl }}-${{ matrix.os }}
+          lookup-only: true
+
+      - name: Checkout, build, and install wolfssl
+        if: steps.cache-wolfssl.outputs.cache-hit != 'true'
+        uses: wolfSSL/actions-build-autotools-project@v1
+        with:
+          repository: wolfssl/wolfssl
+          ref: ${{ matrix.wolfssl }}
+          path: wolfssl
+          configure: --enable-all
+          check: false
+          install: true
+
+  build_wolfssh:
+    needs:
+      - build_wolfssl
+      - create_matrix
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest ]
+        wolfssl: ${{ fromJson(needs.create_matrix.outputs['versions']) }}
+    name: Build and test wolfsshd
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 10
+    steps:
+      - name: Checking cache for wolfssl
+        uses: actions/cache@v4
+        with:
+          path: build-dir/
+          key: wolfssh-sshd-wolfssl-${{ matrix.wolfssl }}-${{ matrix.os }}
+          fail-on-cache-miss: true
+
+      - uses: actions/checkout@v4
+        with:
+          path: wolfssh/
+
+      - name: autogen
+        working-directory: ./wolfssh/
+        run: ./autogen.sh
+
+      - name: configure
+        working-directory: ./wolfssh/
+        run : |
+          ./configure --enable-all LDFLAGS="-L${{ github.workspace }}/build-dir/lib" CPPFLAGS="-I${{ github.workspace }}/build-dir/include -DWOLFSSH_NO_FPKI -DWOLFSSH_NO_SFTP_TIMEOUT -DMAX_PATH_SZ=120"
+
+      - name: make
+        working-directory: ./wolfssh/
+        run: make
+
+      - name: Setup test user
+        run: sudo useradd -p password jak
+
+      - name: Run SCP example test
+        timeout-minutes: 1
+        working-directory: ./wolfssh/
+        run: |
+          mkdir /tmp/wolfssh
+          echo "test file" > /tmp/wolfssh/test.txt
+          ./examples/scpclient/wolfscp -p 22 -u jak -P password -H 127.0.0.1  -L /tmp/wolfssh/test.txt:/tmp/non_existent_folder/ || true
+          # check that the directory and file do not exist
+          [ ! -d /tmp/non_existent_folder ]
+          [ ! -f /tmp/non_existent_folder/test.txt ]

src/wolfscp.c

@@ -1572,6 +1572,11 @@ int ReceiveScpConfirmation(WOLFSSH* ssh)
                      "scp error: peer sent error confirmation (code: %d)",
                      msg[0]);
                 ret = WS_FATAL_ERROR;
+
+                /* SCP peer signaled a failure, propogate the error back
+                 * to the caller. If not set here WS_CHAN_RXD could be
+                 * returned. */
+                ssh->error = ret;
                 break;
         }
     }