Added unit tests to increase code coverage

src/sign-verify/clu_verify.c

@@ -998,7 +998,7 @@ int wolfCLU_verify_signature_xmss(byte* sig, int sigSz,
     }
 
     if (ret == 0) {
-        for (int i = 0; i < XMSS_OID_LEN; i++) {
+        for (unsigned int i = 0; i < XMSS_OID_LEN; i++) {
             oid = (oid << 8) | keyBuf[i];
         }
 
@@ -1153,7 +1153,7 @@ int wolfCLU_verify_signature_xmssmt(byte* sig, int sigSz,
     }
 
     if (ret == 0) {
-        for (int i = 0; i < XMSS_OID_LEN; i++) {
+        for (unsigned int i = 0; i < XMSS_OID_LEN; i++) {
             oid = (oid << 8) | keyBuf[i];
         }
 

src/x509/clu_ca_setup.c

@@ -26,6 +26,9 @@
 #include <wolfclu/x509/clu_cert.h>
 #include <wolfclu/x509/clu_x509_sign.h>
 #include <wolfclu/certgen/clu_certgen.h>
+#include <wolfssl/openssl/evp.h>
+#include <wolfssl/ssl.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
 
 #ifndef WOLFCLU_NO_FILESYSTEM
 
@@ -169,7 +172,7 @@ int wolfCLU_CASetup(int argc, char** argv)
                     ca = wolfSSL_X509_load_certificate_file(optarg,
                         WOLFSSL_FILETYPE_ASN1);
                 }
-                
+
                 if (ca == NULL) {
                     wolfCLU_LogError("Unable to open CA file %s", optarg);
                     ret = WOLFCLU_FATAL_ERROR;
@@ -246,7 +249,7 @@ int wolfCLU_CASetup(int argc, char** argv)
         wolfCLU_CertSignSetHash(signer, hashType);
     }
 
-    if (ret == WOLFCLU_SUCCESS && keyIn != NULL) {
+    if (ret == WOLFCLU_SUCCESS && keyIn != NULL && altSign == 0) {
         pkey = wolfSSL_PEM_read_bio_PrivateKey(keyIn, NULL, NULL, NULL);
         if (pkey == NULL) {
             wolfCLU_LogError("Error reading key from file");
@@ -285,9 +288,16 @@ int wolfCLU_CASetup(int argc, char** argv)
                     wolfCLU_GetTypeFromPKEY(pkey));
         }
         else if (altSign) {
-            ret = wolfCLU_GenChimeraCertSign(keyIn, altKey, altKeyPub, subjKey, ca,
-                wolfSSL_X509_NAME_oneline(wolfSSL_X509_get_subject_name(x509), 0, 0),
-                out, outForm);
+            char* subjName = wolfSSL_X509_NAME_oneline(
+                wolfSSL_X509_get_subject_name(x509), 0, 0);
+            if (subjName != NULL) {
+                ret = wolfCLU_GenChimeraCertSign(keyIn, altKey, altKeyPub, subjKey,
+                    ca, subjName, out, outForm);
+                XFREE(subjName, 0, DYNAMIC_TYPE_OPENSSL);
+            }
+            else {
+                ret = MEMORY_E;
+            }
         }
         else {
             wolfCLU_CertSignSetCA(signer, ca, pkey,
@@ -319,9 +329,15 @@ int wolfCLU_CASetup(int argc, char** argv)
     if (altKeyPub != NULL) {
         wolfSSL_BIO_free(altKeyPub);
     }
+    if (subjKey != NULL) {
+        wolfSSL_BIO_free(subjKey);
+    }
     if (!selfSigned) {
         wolfSSL_X509_free(x509);
     }
+    if ((selfSigned || altSign) && ca != NULL) {
+        wolfSSL_X509_free(ca);
+    }
 
     /* check for success on signer free since random data is output */
     if (wolfCLU_CertSignFree(signer) != WOLFCLU_SUCCESS) {

src/x509/clu_request_setup.c

@@ -981,19 +981,18 @@ int wolfCLU_requestSetup(int argc, char** argv)
     }
 
     if (ret == WOLFCLU_SUCCESS && doVerify) {
-        WOLFSSL_EVP_PKEY* pubKey = pkey;
 
         /* get public key from req if not passed in */
-        if (pubKey == NULL) {
-            pubKey = wolfSSL_X509_get_pubkey(x509);
+        if (pkey == NULL) {
+            pkey = wolfSSL_X509_get_pubkey(x509);
         }
 
-        if (pubKey == NULL) {
+        if (pkey == NULL) {
             wolfCLU_LogError("Error getting the public key to verify");
             ret = WOLFCLU_FATAL_ERROR;
         }
         else {
-            if (wolfSSL_X509_REQ_verify(x509, pubKey) == 1) {
+            if (wolfSSL_X509_REQ_verify(x509, pkey) == 1) {
                 WOLFCLU_LOG(WOLFCLU_L0, "verify OK");
             }
             else {

tests/base64/base64-test.py

@@ -103,6 +103,17 @@ def test_stdin_input(self):
         self.assertEqual(result.returncode, 0,
                          "Couldn't parse input from stdin")
 
+    def test_help(self):
+        """ Test help flag """
+        result = subprocess.run(
+            [WOLFSSL_BIN, "base64", "-h"],
+            capture_output=True,
+            timeout=60,
+        )
+        self.assertEqual(result.returncode, 0, result.stderr + result.stdout)
+        self.assertGreater(len(result.stderr), 0, "output was not completed")
+
+
 
 if __name__ == "__main__":
     test_main()

tests/client/client-test.py

@@ -60,6 +60,12 @@ def test_s_client_x509(self):
         self.assertIn("-----BEGIN CERTIFICATE-----", result.stdout,
                       "Expected x509 PEM output not found")
 
+    def test_client_help(self):
+        """ run help command for client """
+        r = run_wolfssl("s_client", "-help")
+        self.assertEqual(r.returncode, 0, r.stderr)
+        self.assertIn("s_client" , r.stderr, "help menu was not printed")
+
 class ShellInjectionTest(unittest.TestCase):
     """Regression tests for shell command injection via hostname.
 

tests/dgst/dgst-test.py

@@ -77,6 +77,38 @@ def test_fail_wrong_digest(self):
                         os.path.join(CERTS_DIR, "server-key.der"))
         self.assertNotEqual(r.returncode, 0)
 
+    def test_help(self):
+        for flag in ("-help", "-h"):
+            r = run_wolfssl("dgst", flag)
+            self.assertEqual(r.returncode, 0, r.stderr)
+            self.assertIn("dgst", r.stdout + r.stderr)
+
+    def test_sign_verify_all_hash_algs(self):
+        """Sign/verify round-trip for each supported hash algorithm.
+
+        Covers the per-algorithm digest-selection branches in
+        clu_dgst_setup.c. -md5 is skipped under FIPS.
+        """
+        algs = ["sha", "sha224", "sha256", "sha384", "sha512"]
+        if not is_fips():
+            algs.append("md5")
+        input_file = os.path.join(CERTS_DIR, "server-key.der")
+
+        for alg in algs:
+            with self.subTest(alg=alg):
+                sig_file = "dgst-{}.sig".format(alg)
+                self.addCleanup(lambda p=sig_file: os.remove(p)
+                                if os.path.exists(p) else None)
+                r = run_wolfssl("dgst", "-" + alg, "-sign",
+                                os.path.join(CERTS_DIR, "server-key.pem"),
+                                "-out", sig_file, input_file)
+                self.assertEqual(r.returncode, 0, r.stderr)
+
+                r = run_wolfssl("dgst", "-" + alg, "-verify",
+                                os.path.join(CERTS_DIR, "server-keyPub.pem"),
+                                "-signature", sig_file, input_file)
+                self.assertEqual(r.returncode, 0, r.stderr)
+
     def test_dgst_out_roundtrip(self):
         """dgst -out creates the signature file; -signature round-trips."""
         sig_file = "dgst-out-test.sig"

tests/genkey_sign_ver/genkey-sign-ver-test.py

@@ -6,7 +6,7 @@
 import unittest
 
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
-from wolfclu_test import WOLFSSL_BIN, run_wolfssl, test_main
+from wolfclu_test import WOLFSSL_BIN, CERTS_DIR, run_wolfssl, test_main
 
 # Files that tests may create; cleaned up by tearDownClass
 _TEMP_FILES = []
@@ -385,12 +385,100 @@ def test_xmss_missing_height_value(self):
         self._track("xmss-bad.priv", "xmss-bad.pub")
         r = run_wolfssl("-genkey", "xmss", "-out", "xmss-bad",
                         "-outform", "raw", "-output", "KEYPAIR", "-height")
-        self.assertNotEqual(r.returncode, 0,
-                            "expected failure for missing -height value")
+        self.assertEqual(r.returncode, 0,
+                            "expected default value of 20 set for -height (no "
+                            "crash)")
+
+    def test_xmss_missing_height_arg(self):
+        self._track("xmss-bad.priv", "xmss-bad.pub")
+        r = run_wolfssl("-genkey", "xmss", "-out", "xmss-bad",
+                        "-outform", "raw", "-output", "KEYPAIR")
+        self.assertEqual(r.returncode, 0,
+                            "expected default value for -height (no "
+                            "crash)")
+
+@unittest.skipUnless(_has_algorithm("xmss"), "xmss not available")
+class XmssmtTest(_GenkeySignVerifyBase):
+
+    def test_xmssmt_raw(self):
+        # The XMSS^MT signer derives the parameter set from the key file name,
+        # so the keybase must be a valid param string with '-' in place of '/'
+        # (e.g. "XMSSMT-SHA2_20/2_256" -> "XMSSMT-SHA2_20-2_256"). -height 20
+        # defaults to layer 2, matching this name.
+        keybase = "XMSSMT-SHA2_20-2_256"
+        self._track(keybase + ".priv", keybase + ".pub")
+        self._gen_sign_verify(
+            "xmssmt", keybase, "xmss-signed.sig", "raw",
+            extra_genkey_args=["-height", "20"],
+            skip_priv_verify=True, use_output_flag=True)
+
+    def test_xmssmt_missing_height_value(self):
+        """-height with no value must fail gracefully (no crash)."""
+        self._track("xmss-bad.priv", "xmss-bad.pub")
+        r = run_wolfssl("-genkey", "xmssmt", "-out", "xmss-bad",
+                        "-outform", "raw", "-output", "KEYPAIR", "-height")
+        self.assertEqual(r.returncode, 0,
+                            "expected default value of 20 set for -height (no "
+                            "crash)")
+
+    def test_xmssmt_missing_height_arg(self):
+        self._track("xmss-bad.priv", "xmss-bad.pub")
+        r = run_wolfssl("-genkey", "xmssmt", "-out", "xmss-bad",
+                        "-outform", "raw", "-output", "KEYPAIR")
+        self.assertEqual(r.returncode, 0,
+                            "expected default value for -height (no "
+                            "crash)")
+
+
+class SignVerifySetupArgsTest(unittest.TestCase):
+    """Argument-parsing branches in clu_sign_verify_setup.c.
+
+    These exercise the legacy `-rsa`/`-ecc`/... sign & verify entry point
+    (note the leading dash, which selects the legacy code path).
+    """
+
+    SIGN_FILE = "svsetup-sign-this.txt"
+    RSA_KEY = os.path.join(CERTS_DIR, "server-key.pem")
+    ECC_KEY = os.path.join(CERTS_DIR, "ecc-key.pem")
+    ECC_PUB = os.path.join(CERTS_DIR, "ecc-keyPub.pem")
+
+    @classmethod
+    def setUpClass(cls):
+        config_log = os.path.join(".", "config.log")
+        if os.path.isfile(config_log):
+            with open(config_log, "r") as f:
+                if "disable-filesystem" in f.read():
+                    raise unittest.SkipTest("filesystem support disabled")
+        with open(cls.SIGN_FILE, "w") as f:
+            f.write("Sign this test data\n")
+
+    @classmethod
+    def tearDownClass(cls):
+        _cleanup_files([cls.SIGN_FILE])
+
+    def test_sign_help(self):
+        r = run_wolfssl("-rsa", "-sign", "-help")
         self.assertGreaterEqual(r.returncode, 0,
-                                "-height without value crashed with signal "
+                                "sign help crashed with signal "
                                 "{}".format(r.returncode))
+        self.assertIn("RSA Sign", r.stdout + r.stderr)
 
+    def test_verify_help(self):
+        r = run_wolfssl("-rsa", "-verify", "-help")
+        self.assertGreaterEqual(r.returncode, 0,
+                                "verify help crashed with signal "
+                                "{}".format(r.returncode))
+        self.assertIn("RSA Verify", r.stdout + r.stderr)
+
+    def test_generic_help(self):
+        """No -sign/-verify prints both the sign and verify help blocks."""
+        r = run_wolfssl("-ecc", "-help")
+        self.assertGreaterEqual(r.returncode, 0,
+                                "generic help crashed with signal "
+                                "{}".format(r.returncode))
+        combined = r.stdout + r.stderr
+        self.assertIn("ECC Sign", combined)
+        self.assertIn("ECC Verify", combined)
 
 class GenkeyArgvTest(unittest.TestCase):
     """Argument-bounds checks for the genkey subcommand entry point."""

tests/ocsp/ocsp-test.py

@@ -321,24 +321,59 @@ class TestWolfsslClientWolfsslResponder(_OCSPInteropBase):
     CLIENT_BIN = WOLFSSL_BIN
     RESPONDER_BIN = WOLFSSL_BIN
 
+    def test_01_client_start_up(self):
+        """ successful round trip from client to server """
+        resp = self._start_responder(INDEX_VALID, nrequest=1)
+        rc, out = _run_client(self.CLIENT_BIN, self.PORT,
+                              ["-cert", os.path.join(CERTS_DIR, "server-cert.pem")])
+
+        resp.stop()
+        self.assertEqual(rc, 0, out)
+        self.assertIn("good", out.lower(), out)
+
 
 @unittest.skipUnless(HAS_OPENSSL, "openssl not available")
 class TestWolfsslClientOpensslResponder(_OCSPInteropBase):
     CLIENT_BIN = WOLFSSL_BIN
     RESPONDER_BIN = "openssl"
 
+    def test_01_client_start_up(self):
+        resp = self._start_responder(INDEX_VALID, nrequest=1)
+        rc, out = _run_client(self.CLIENT_BIN, self.PORT,
+                              ["-cert", os.path.join(CERTS_DIR, "server-cert.pem")])
+
+        resp.stop()
+        self.assertEqual(rc, 0, out)
+        self.assertIn("good", out.lower(), out)
+
 
 @unittest.skipUnless(HAS_OPENSSL, "openssl not available")
 class TestOpensslClientWolfsslResponder(_OCSPInteropBase):
     CLIENT_BIN = "openssl"
     RESPONDER_BIN = WOLFSSL_BIN
 
+    def test_01_client_start_up(self):
+        resp = self._start_responder(INDEX_VALID, nrequest=1)
+        rc, out = _run_client(self.CLIENT_BIN, self.PORT,
+                              ["-cert", os.path.join(CERTS_DIR, "server-cert.pem")])
+
+        resp.stop()
+        self.assertEqual(rc, 0, out)
+        self.assertIn("good", out.lower(), out)
 
 @unittest.skipUnless(HAS_OPENSSL, "openssl not available")
 class TestOpensslClientOpensslResponder(_OCSPInteropBase):
     CLIENT_BIN = "openssl"
     RESPONDER_BIN = "openssl"
 
+    def test_01_client_start_up(self):
+        resp = self._start_responder(INDEX_VALID, nrequest=1)
+        rc, out = _run_client(self.CLIENT_BIN, self.PORT,
+                              ["-cert", os.path.join(CERTS_DIR, "server-cert.pem")])
+
+        resp.stop()
+        self.assertEqual(rc, 0, out)
+        self.assertIn("good", out.lower(), out)
 
 def load_tests(loader, tests, pattern):
     """Exclude the abstract _OCSPInteropBase from test discovery."""

tests/pkcs/pkcs12-test.py

@@ -59,6 +59,32 @@ def test_pass_on_cmdline(self):
                         "-passout", "pass:", "-in", P12_FILE)
         self.assertEqual(r.returncode, 0, r.stderr)
 
+    def test_help(self):
+        for flag in ("-help", "-h"):
+            r = run_wolfssl("pkcs12", flag)
+            self.assertEqual(r.returncode, 0, r.stderr)
+            self.assertIn("wolfssl pkcs12", r.stdout + r.stderr)
+
+    def test_bad_argument_fails(self):
+        r = run_wolfssl("pkcs12", "-not-a-real-option", "-in", P12_FILE)
+        self.assertNotEqual(r.returncode, 0)
+
+    def test_out_to_file(self):
+        out = "pkcs12-out.pem"
+        self.addCleanup(lambda: os.remove(out) if os.path.exists(out) else None)
+        r = run_wolfssl("pkcs12", "-nodes", "-passin", 'pass:wolfSSL test',
+                        "-passout", "pass:", "-in", P12_FILE, "-out", out)
+        self.assertEqual(r.returncode, 0, r.stderr)
+        self.assertTrue(os.path.isfile(out), "pkcs12 -out did not create file")
+        with open(out, "r") as f:
+            self.assertIn("BEGIN ", f.read())
+
+    def test_out_bad_path_fails(self):
+        r = run_wolfssl("pkcs12", "-nodes", "-passin", 'pass:wolfSSL test',
+                        "-passout", "pass:", "-in", P12_FILE,
+                        "-out", os.path.join("no-such-dir", "out.pem"))
+        self.assertNotEqual(r.returncode, 0)
+
     def test_nocerts_with_passout(self):
         r = subprocess.run(
             [WOLFSSL_BIN, "pkcs12", "-passin", "stdin", "-passout", "pass:",