Merge pull request #7143 from julek-wolfssl/zd/17303

EVP_Cipher: correct parameter checking

.github/workflows/libssh2.yml

@@ -0,0 +1,58 @@
+name: libssh2 Tests
+
+on:
+  workflow_call:
+
+jobs:
+  build_wolfssl:
+    name: Build wolfSSL
+    # Just to keep it the same as the testing target
+    runs-on: ubuntu-latest
+    # This should be a safe limit for the tests to run.
+    timeout-minutes: 4
+    steps:
+      - name: Build wolfSSL
+        uses: wolfSSL/actions-build-autotools-project@v1
+        with:
+          path: wolfssl
+          configure: --enable-all
+          check: false # config is already tested in many other PRB's
+          install: true
+
+      - name: Upload built lib
+        uses: actions/upload-artifact@v3
+        with:
+          name: wolf-install-libssh2
+          path: build-dir
+          retention-days: 1
+
+  libssh2_check:
+    strategy:
+      fail-fast: false
+      matrix:
+        # List of releases to test
+        ref: [ 1.11.0 ]
+    name: ${{ matrix.ref }}
+    runs-on: ubuntu-latest
+    # This should be a safe limit for the tests to run.
+    timeout-minutes: 8
+    needs: build_wolfssl
+    steps:
+      - name: Download lib
+        uses: actions/download-artifact@v3
+        with:
+          name: wolf-install-libssh2
+          path: build-dir
+
+      - name: Build and test libssh2
+        uses: wolfSSL/actions-build-autotools-project@v1
+        with:
+          repository: libssh2/libssh2
+          ref: libssh2-${{ matrix.ref }}
+          path: libssh2
+          configure: --with-crypto=wolfssl --with-libwolfssl-prefix=$GITHUB_WORKSPACE/build-dir
+          check: true
+
+      - name: Confirm libssh2 built with wolfSSL
+        working-directory: ./libssh2
+        run: ldd src/.libs/libssh2.so | grep wolfssl

.github/workflows/main.yml

@@ -42,6 +42,8 @@ jobs:
         uses: ./.github/workflows/packaging.yml
     memcached:
         uses: ./.github/workflows/memcached.yml
+    libssh2:
+        uses: ./.github/workflows/libssh2.yml
 # TODO: Currently this test fails. Enable it once it becomes passing.        
 #    haproxy:
 #        uses: ./.github/workflows/haproxy.yml

wolfcrypt/src/evp.c

@@ -8110,6 +8110,26 @@ void wolfSSL_EVP_init(void)
     }
 #endif /* !NO_AES || !NO_DES3 */
 
+    static int IsCipherTypeAEAD(unsigned char cipherType)
+    {
+        switch (cipherType) {
+            case AES_128_GCM_TYPE:
+            case AES_192_GCM_TYPE:
+            case AES_256_GCM_TYPE:
+            case AES_128_CCM_TYPE:
+            case AES_192_CCM_TYPE:
+            case AES_256_CCM_TYPE:
+            case ARIA_128_GCM_TYPE:
+            case ARIA_192_GCM_TYPE:
+            case ARIA_256_GCM_TYPE:
+            case SM4_GCM_TYPE:
+            case SM4_CCM_TYPE:
+                return 1;
+            default:
+                return 0;
+        }
+    }
+
     /* Return length on ok */
     int wolfSSL_EVP_Cipher(WOLFSSL_EVP_CIPHER_CTX* ctx, byte* dst, byte* src,
                            word32 len)
@@ -8118,34 +8138,21 @@ void wolfSSL_EVP_init(void)
 
         WOLFSSL_ENTER("wolfSSL_EVP_Cipher");
 
-        if (ctx == NULL || ((src == NULL || dst == NULL) &&
-            (TRUE
-        #ifdef HAVE_AESGCM
-            && ctx->cipherType != AES_128_GCM_TYPE &&
-             ctx->cipherType != AES_192_GCM_TYPE &&
-             ctx->cipherType != AES_256_GCM_TYPE
-        #endif
-        #ifdef HAVE_AESCCM
-            && ctx->cipherType != AES_128_CCM_TYPE &&
-             ctx->cipherType != AES_192_CCM_TYPE &&
-             ctx->cipherType != AES_256_CCM_TYPE
-        #endif
-        #ifdef HAVE_ARIA
-            && ctx->cipherType != ARIA_128_GCM_TYPE &&
-             ctx->cipherType != ARIA_192_GCM_TYPE &&
-             ctx->cipherType != ARIA_256_GCM_TYPE
-        #endif
-        #ifdef WOLFSSL_SM4_GCM
-            && ctx->cipherType != SM4_GCM_TYPE
-        #endif
-        #ifdef WOLFSSL_SM4_CCM
-            && ctx->cipherType != SM4_CCM_TYPE
-        #endif
-            ))) {
+        if (ctx == NULL) {
             WOLFSSL_MSG("Bad argument.");
             return WOLFSSL_FATAL_ERROR;
         }
 
+        if (!IsCipherTypeAEAD(ctx->cipherType)) {
+            /* No-op for non-AEAD ciphers */
+            if (src == NULL && dst == NULL && len == 0)
+                return 0;
+            if (src == NULL || dst == NULL) {
+                WOLFSSL_MSG("Bad argument.");
+                return WOLFSSL_FATAL_ERROR;
+            }
+        }
+
         if (ctx->cipherType == WOLFSSL_EVP_CIPH_TYPE_INIT) {
             WOLFSSL_MSG("Cipher operation not initialized. Call "
                         "wolfSSL_EVP_CipherInit.");