3354. [func] Improve OpenSSL error logging. [RT #29932]

CHANGES

@@ -1,3 +1,5 @@
+3354.	[func]		Improve OpenSSL error logging. [RT #29932]
+
 3353.	[bug]		Use a single task for task exclusive operations.
 			[RT #29872]
 

bin/tests/dst/t_dst.c

@@ -179,7 +179,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 	if (p == NULL) {
 		t_info("getcwd failed %d\n", errno);
 		++*nprobs;
-		return;
+		goto cleanup;
 	}
 
 	ret = dst_key_fromfile(name1, id1, alg, type, current, mctx, &key1);
@@ -187,7 +187,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("dst_key_fromfile(%d) returned: %s\n",
 		       alg, dst_result_totext(ret));
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
 	ret = dst_key_fromfile(name2, id2, alg, type, current, mctx, &key2);
@@ -195,7 +195,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("dst_key_fromfile(%d) returned: %s\n",
 		       alg, dst_result_totext(ret));
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
 	ret = isc_file_mktemplate("/tmp/", tmp, sizeof(tmp));
@@ -203,7 +203,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("isc_file_mktemplate failed %s\n",
 		       isc_result_totext(ret));
 		++*nprobs;
-		return;
+		goto cleanup;
 	}
 
 	ret = isc_dir_createunique(tmp);
@@ -211,7 +211,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("isc_dir_createunique failed %s\n",
 		       isc_result_totext(ret));
 		++*nprobs;
-		return;
+		goto cleanup;
 	}
 
 	ret = dst_key_tofile(key1, type, tmp);
@@ -219,7 +219,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("dst_key_tofile(%d) returned: %s\n",
 		       alg, dst_result_totext(ret));
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
 	ret = dst_key_tofile(key2, type, tmp);
@@ -227,7 +227,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("dst_key_tofile(%d) returned: %s\n",
 		       alg, dst_result_totext(ret));
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
 	cleandir(tmp);
@@ -238,7 +238,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("dst_computesecret() returned: %s\n",
 		       dst_result_totext(ret));
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
 	isc_buffer_init(&b2, array2, sizeof(array2));
@@ -247,7 +247,7 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 		t_info("dst_computesecret() returned: %s\n",
 		       dst_result_totext(ret));
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
 	isc_buffer_usedregion(&b1, &r1);
@@ -256,11 +256,14 @@ dh(dns_name_t *name1, int id1, dns_name_t *name2, int id2, isc_mem_t *mctx,
 	{
 		t_info("computed secrets don't match\n");
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
-	dst_key_free(&key1);
-	dst_key_free(&key2);
+ cleanup:
+	if (key1 != NULL)
+		dst_key_free(&key1);
+	if (key2 != NULL)
+		dst_key_free(&key2);
 }
 
 static void
@@ -382,12 +385,14 @@ generate(int alg, isc_mem_t *mctx, int size, int *nfails) {
 		t_info("dst_key_generate(%d) returned: %s\n", alg,
 		       dst_result_totext(ret));
 		++*nfails;
-		return;
+		goto cleanup;
 	}
 
 	if (alg != DST_ALG_DH)
 		use(key, mctx, ISC_R_SUCCESS, nfails);
-	dst_key_free(&key);
+ cleanup:
+	if (key != NULL)
+		dst_key_free(&key);
 }
 
 #define	DBUFSIZ	25
@@ -839,14 +844,20 @@ t2_sigchk(char *datapath, char *sigpath, char *keyname,
 	if (isc_result != ISC_R_SUCCESS) {
 		t_info("dst_context_create returned %s\n",
 			isc_result_totext(isc_result));
+		(void) free(data);
+		dst_key_free(&key);
 		++*nfails;
+		return;
 	}
 	isc_result = dst_context_adddata(ctx, &datareg);
 	if (isc_result != ISC_R_SUCCESS) {
 		t_info("dst_context_adddata returned %s\n",
 			isc_result_totext(isc_result));
+		(void) free(data);
 		dst_context_destroy(&ctx);
+		dst_key_free(&key);
 		++*nfails;
+		return;
 	}
 	isc_result = dst_context_verify(ctx, &sigreg);
 	if (	((exp_res == 0) && (isc_result != ISC_R_SUCCESS))	||
@@ -855,7 +866,6 @@ t2_sigchk(char *datapath, char *sigpath, char *keyname,
 		t_info("dst_context_verify returned %s, expected %s\n",
 			isc_result_totext(isc_result),
 			expected_result);
-		dst_context_destroy(&ctx);
 		++*nfails;
 	}
 

bin/tests/system/cleanpkcs11.sh

@@ -18,4 +18,4 @@
 
 if [ ! -x ../../pkcs11/pkcs11-destroy ]; then exit 1; fi
 
-../../pkcs11/pkcs11-destroy -s 0 -p 1234
+../../pkcs11/pkcs11-destroy -s ${SLOT:-0} -p 1234

bin/tests/system/conf.sh.in

@@ -45,9 +45,9 @@ DSFROMKEY=$TOP/bin/dnssec/dnssec-dsfromkey
 CHECKDS=$TOP/bin/python/dnssec-checkds
 CHECKZONE=$TOP/bin/check/named-checkzone
 CHECKCONF=$TOP/bin/check/named-checkconf
-PK11GEN="$TOP/bin/pkcs11/pkcs11-keygen -s 0 -p 1234"
-PK11LIST="$TOP/bin/pkcs11/pkcs11-list -s 0 -p 1234"
-PK11DEL="$TOP/bin/pkcs11/pkcs11-destroy -s 0 -p 1234"
+PK11GEN="$TOP/bin/pkcs11/pkcs11-keygen -s ${SLOT:-0} -p 1234"
+PK11LIST="$TOP/bin/pkcs11/pkcs11-list -s ${SLOT:-0} -p 1234"
+PK11DEL="$TOP/bin/pkcs11/pkcs11-destroy -s ${SLOT:-0} -p 1234"
 JOURNALPRINT=$TOP/bin/tools/named-journalprint
 VERIFY=$TOP/bin/dnssec/dnssec-verify
 

lib/dns/ds.c

@@ -92,13 +92,13 @@ dns_ds_buildrdata(dns_name_t *owner, dns_rdata_t *key,
 #define CHECK(x)					\
 	if ((x) != 1) {					\
 		EVP_MD_CTX_cleanup(&ctx);		\
-		return (DST_R_OPENSSLFAILURE);		\
+		return (DST_R_CRYPTOFAILURE);		\
 	}
 
 	case DNS_DSDIGEST_GOST:
 		md = EVP_gost();
 		if (md == NULL)
-			return (DST_R_OPENSSLFAILURE);
+			return (DST_R_CRYPTOFAILURE);
 		EVP_MD_CTX_init(&ctx);
 		CHECK(EVP_DigestInit(&ctx, md));
 		dns_name_toregion(name, &r);

lib/dns/dst_openssl.h

@@ -39,6 +39,9 @@ ISC_LANG_BEGINDECLS
 isc_result_t
 dst__openssl_toresult(isc_result_t fallback);
 
+isc_result_t
+dst__openssl_toresult2(const char *funcname, isc_result_t fallback);
+
 #ifdef USE_ENGINE
 ENGINE *
 dst__openssl_getengine(const char *engine);

lib/dns/dst_result.c

@@ -30,7 +30,7 @@
 
 static const char *text[DST_R_NRESULTS] = {
 	"algorithm is unsupported",		/*%< 0 */
-	"openssl failure",			/*%< 1 */
+	"crypto failure",			/*%< 1 */
 	"built with no crypto support",		/*%< 2 */
 	"illegal operation for a null key",	/*%< 3 */
 	"public key is invalid",		/*%< 4 */

lib/dns/include/dns/log.h

@@ -75,6 +75,7 @@ LIBDNS_EXTERNAL_DATA extern isc_logmodule_t dns_modules[];
 #define DNS_LOGMODULE_ACACHE		(&dns_modules[25])
 #define DNS_LOGMODULE_DLZ		(&dns_modules[26])
 #define DNS_LOGMODULE_DNSSEC		(&dns_modules[27])
+#define DNS_LOGMODULE_CRYPTO		(&dns_modules[28])
 
 ISC_LANG_BEGINDECLS
 

lib/dns/include/dst/result.h

@@ -34,7 +34,9 @@
 #include <isc/result.h>		/* Contractual promise. */
 
 #define DST_R_UNSUPPORTEDALG		(ISC_RESULTCLASS_DST + 0)
-#define DST_R_OPENSSLFAILURE		(ISC_RESULTCLASS_DST + 1)
+#define DST_R_CRYPTOFAILURE		(ISC_RESULTCLASS_DST + 1)
+/* compat */
+#define DST_R_OPENSSLFAILURE		DST_R_CRYPTOFAILURE
 #define DST_R_NOCRYPTO			(ISC_RESULTCLASS_DST + 2)
 #define DST_R_NULLKEY			(ISC_RESULTCLASS_DST + 3)
 #define DST_R_INVALIDPUBLICKEY		(ISC_RESULTCLASS_DST + 4)

lib/dns/log.c

@@ -81,6 +81,7 @@ LIBDNS_EXTERNAL_DATA isc_logmodule_t dns_modules[] = {
 	{ "dns/acache",		0 },
 	{ "dns/dlz",		0 },
 	{ "dns/dnssec",		0 },
+	{ "dns/crypto",		0 },
 	{ NULL, 		0 }
 };
 

lib/dns/openssl_link.c

@@ -45,6 +45,8 @@
 #include <isc/thread.h>
 #include <isc/util.h>
 
+#include <dns/log.h>
+
 #include <dst/result.h>
 
 #include "dst_internal.h"
@@ -172,6 +174,8 @@ dst__openssl_init(const char *engine) {
 	CRYPTO_set_locking_callback(lock_callback);
 	CRYPTO_set_id_callback(id_callback);
 
+	ERR_load_crypto_strings();
+
 	rm = mem_alloc(sizeof(RAND_METHOD));
 	if (rm == NULL) {
 		result = ISC_R_NOMEMORY;
@@ -285,7 +289,7 @@ dst__openssl_destroy() {
 isc_result_t
 dst__openssl_toresult(isc_result_t fallback) {
 	isc_result_t result = fallback;
-	int err = ERR_get_error();
+	unsigned long err = ERR_get_error();
 
 	switch (ERR_GET_REASON(err)) {
 	case ERR_R_MALLOC_FAILURE:
@@ -298,6 +302,40 @@ dst__openssl_toresult(isc_result_t fallback) {
 	return (result);
 }
 
+isc_result_t
+dst__openssl_toresult2(const char *funcname, isc_result_t fallback) {
+	isc_result_t result = fallback;
+	unsigned long err = ERR_peek_error();
+	const char *file, *data;
+	int line, flags;
+	char buf[256];
+
+	switch (ERR_GET_REASON(err)) {
+	case ERR_R_MALLOC_FAILURE:
+		result = ISC_R_NOMEMORY;
+		goto done;
+	default:
+		break;
+	}
+	isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
+		      DNS_LOGMODULE_CRYPTO, ISC_LOG_WARNING,
+		      "%s failed", funcname);
+	for (;;) {
+		err = ERR_get_error_line_data(&file, &line, &data, &flags);
+		if (err == 0)
+			goto done;
+		ERR_error_string_n(err, buf, sizeof(buf));
+		isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
+			      DNS_LOGMODULE_CRYPTO, ISC_LOG_INFO,
+			      "%s:%s:%d:%s", buf, file, line,
+			      (flags & ERR_TXT_STRING) ? data : "");
+	}
+
+    done:
+	ERR_clear_error();
+	return (result);
+}
+
 #if defined(USE_ENGINE)
 ENGINE *
 dst__openssl_getengine(const char *engine) {

lib/dns/openssldh_link.c

@@ -94,7 +94,8 @@ openssldh_computesecret(const dst_key_t *pub, const dst_key_t *priv,
 		return (ISC_R_NOSPACE);
 	ret = DH_compute_key(r.base, dhpub->pub_key, dhpriv);
 	if (ret == 0)
-		return (dst__openssl_toresult(DST_R_COMPUTESECRETFAILURE));
+		return (dst__openssl_toresult2("DH_compute_key",
+					       DST_R_COMPUTESECRETFAILURE));
 	isc_buffer_add(secret, len);
 	return (ISC_R_SUCCESS);
 }
@@ -204,7 +205,7 @@ openssldh_generate(dst_key_t *key, int generator, void (*callback)(int)) {
 #if OPENSSL_VERSION_NUMBER > 0x00908000L
 		dh = DH_new();
 		if (dh == NULL)
-			return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+			return (dst__openssl_toresult(ISC_R_NOMEMORY));
 
 		if (callback == NULL) {
 			BN_GENCB_set_old(&cb, NULL, NULL);
@@ -216,7 +217,9 @@ openssldh_generate(dst_key_t *key, int generator, void (*callback)(int)) {
 		if (!DH_generate_parameters_ex(dh, key->key_size, generator,
 					       &cb)) {
 			DH_free(dh);
-			return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+			return (dst__openssl_toresult2(
+					"DH_generate_parameters_ex",
+					DST_R_OPENSSLFAILURE));
 		}
 #else
 		dh = DH_generate_parameters(key->key_size, generator,
@@ -225,11 +228,13 @@ openssldh_generate(dst_key_t *key, int generator, void (*callback)(int)) {
 	}
 
 	if (dh == NULL)
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("DH_generate_parameters",
+					       DST_R_OPENSSLFAILURE));
 
 	if (DH_generate_key(dh) == 0) {
 		DH_free(dh);
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("DH_generate_key",
+					       DST_R_OPENSSLFAILURE));
 	}
 	dh->flags &= ~DH_FLAG_CACHE_MONT_P;
 
@@ -460,6 +465,7 @@ openssldh_tofile(const dst_key_t *key, const char *directory) {
 
 	dh = key->keydata.dh;
 
+	memset(bufs, 0, sizeof(bufs));
 	for (i = 0; i < 4; i++) {
 		bufs[i] = isc_mem_get(key->mctx, BN_num_bytes(dh->p));
 		if (bufs[i] == NULL) {

lib/dns/openssldsa_link.c

@@ -168,7 +168,8 @@ openssldsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
 	if (!EVP_SignFinal(evp_md_ctx, sigbuf, &siglen, pkey)) {
 		EVP_PKEY_free(pkey);
 		free(sigbuf);
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("EVP_SignFinal",
+					       ISC_R_FAILURE));
 	}
 	INSIST(EVP_PKEY_size(pkey) >= (int) siglen);
 	EVP_PKEY_free(pkey);
@@ -181,23 +182,26 @@ openssldsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
 	sb = sigbuf;
 	if (d2i_DSA_SIG(&dsasig, &sb, (long) siglen) == NULL) {
 		free(sigbuf);
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("d2i_DSA_SIG", ISC_R_FAILURE));
 	}
 	free(sigbuf);
 #elif 0
 	/* Only use EVP for the Digest */
 	if (!EVP_DigestFinal_ex(evp_md_ctx, digest, &siglen)) {
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("EVP_DigestFinal_ex",
+					       ISC_R_FAILURE));
 	}
 	dsasig = DSA_do_sign(digest, ISC_SHA1_DIGESTLENGTH, dsa);
 	if (dsasig == NULL)
-		return (dst__openssl_toresult(DST_R_SIGNFAILURE));
+		return (dst__openssl_toresult2("DSA_do_sign",
+					       DST_R_SIGNFAILURE));
 #else
 	isc_sha1_final(sha1ctx, digest);
 
 	dsasig = DSA_do_sign(digest, ISC_SHA1_DIGESTLENGTH, dsa);
 	if (dsasig == NULL)
-		return (dst__openssl_toresult(DST_R_SIGNFAILURE));
+		return (dst__openssl_toresult2("DSA_do_sign",
+					       DST_R_SIGNFAILURE));
 #endif
 	*r.base++ = (key->key_size - 512)/64;
 	BN_bn2bin_fixed(dsasig->r, r.base, ISC_SHA1_DIGESTLENGTH);
@@ -276,10 +280,15 @@ openssldsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
 	status = DSA_do_verify(digest, ISC_SHA1_DIGESTLENGTH, dsasig, dsa);
 #endif
 	DSA_SIG_free(dsasig);
-	if (status != 1)
+	switch (status) {
+	case 1:
+		return (ISC_R_SUCCESS);
+	case 0:
 		return (dst__openssl_toresult(DST_R_VERIFYFAILURE));
-
-	return (ISC_R_SUCCESS);
+	default:
+		return (dst__openssl_toresult2("DSA_do_verify",
+					       DST_R_VERIFYFAILURE));
+	}
 }
 
 static isc_boolean_t
@@ -370,19 +379,22 @@ openssldsa_generate(dst_key_t *key, int unused, void (*callback)(int)) {
 					&cb))
 	{
 		DSA_free(dsa);
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("DSA_generate_parameters_ex",
+					       DST_R_OPENSSLFAILURE));
 	}
 #else
 	dsa = DSA_generate_parameters(key->key_size, rand_array,
 				      ISC_SHA1_DIGESTLENGTH, NULL, NULL,
 				      NULL, NULL);
 	if (dsa == NULL)
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("DSA_generate_parameters",
+					       DST_R_OPENSSLFAILURE));
 #endif
 
 	if (DSA_generate_key(dsa) == 0) {
 		DSA_free(dsa);
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("DSA_generate_key",
+					       DST_R_OPENSSLFAILURE));
 	}
 	dsa->flags &= ~DSA_FLAG_CACHE_MONT_P;
 

lib/dns/opensslecdsa_link.c

@@ -73,7 +73,8 @@ opensslecdsa_createctx(dst_key_t *key, dst_context_t *dctx) {
 
 	if (!EVP_DigestInit_ex(evp_md_ctx, type, NULL)) {
 		EVP_MD_CTX_destroy(evp_md_ctx);
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("EVP_DigestInit_ex",
+					       ISC_R_FAILURE));
 	}
 
 	dctx->ctxdata.evp_md_ctx = evp_md_ctx;
@@ -102,7 +103,8 @@ opensslecdsa_adddata(dst_context_t *dctx, const isc_region_t *data) {
 		dctx->key->key_alg == DST_ALG_ECDSA384);
 
 	if (!EVP_DigestUpdate(evp_md_ctx, data->base, data->length))
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("EVP_DigestUpdate",
+					       ISC_R_FAILURE));
 
 	return (ISC_R_SUCCESS);
 }
@@ -145,11 +147,13 @@ opensslecdsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
 		DST_RET(ISC_R_NOSPACE);
 
 	if (!EVP_DigestFinal(evp_md_ctx, digest, &dgstlen))
-		DST_RET(ISC_R_FAILURE);
+		DST_RET(dst__openssl_toresult2("EVP_DigestFinal",
+					       ISC_R_FAILURE));
 
 	ecdsasig = ECDSA_do_sign(digest, dgstlen, eckey);
 	if (ecdsasig == NULL)
-		DST_RET(dst__openssl_toresult(DST_R_SIGNFAILURE));
+		DST_RET(dst__openssl_toresult2("ECDSA_do_sign",
+					       DST_R_SIGNFAILURE));
 	BN_bn2bin_fixed(ecdsasig->r, r.base, siglen / 2);
 	r.base += siglen / 2;
 	BN_bn2bin_fixed(ecdsasig->s, r.base, siglen / 2);
@@ -192,7 +196,8 @@ opensslecdsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
 		return (DST_R_VERIFYFAILURE);
 
 	if (!EVP_DigestFinal_ex(evp_md_ctx, digest, &dgstlen))
-		DST_RET (ISC_R_FAILURE);
+		DST_RET (dst__openssl_toresult2("EVP_DigestFinal_ex",
+						ISC_R_FAILURE));
 
 	ecdsasig = ECDSA_SIG_new();
 	if (ecdsasig == NULL)
@@ -203,9 +208,18 @@ opensslecdsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
 	/* cp += siglen / 2; */
 
 	status = ECDSA_do_verify(digest, dgstlen, ecdsasig, eckey);
-	if (status != 1)
-		DST_RET (dst__openssl_toresult(DST_R_VERIFYFAILURE));
-	ret = ISC_R_SUCCESS;
+	switch (status) {
+	case 1:
+		ret = ISC_R_SUCCESS;
+		break;
+	case 0:
+		ret = dst__openssl_toresult(DST_R_VERIFYFAILURE);
+		break;
+	default:
+		ret = dst__openssl_toresult2("ECDSA_do_verify",
+					     DST_R_VERIFYFAILURE);
+		break;
+	}
 
  err:
 	if (ecdsasig != NULL)
@@ -278,10 +292,12 @@ opensslecdsa_generate(dst_key_t *key, int unused, void (*callback)(int)) {
 
 	eckey = EC_KEY_new_by_curve_name(group_nid);
 	if (eckey == NULL)
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("EC_KEY_new_by_curve_name",
+					       DST_R_OPENSSLFAILURE));
 
 	if (EC_KEY_generate_key(eckey) != 1)
-		DST_RET (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		DST_RET (dst__openssl_toresult2("EC_KEY_generate_key",
+						DST_R_OPENSSLFAILURE));
 
 	pkey = EVP_PKEY_new();
 	if (pkey == NULL)
@@ -334,7 +350,7 @@ opensslecdsa_todns(const dst_key_t *key, isc_buffer_t *data) {
 	pkey = key->keydata.pkey;
 	eckey = EVP_PKEY_get1_EC_KEY(pkey);
 	if (eckey == NULL)
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult(ISC_R_FAILURE));
 	len = i2o_ECPublicKey(eckey, NULL);
 	/* skip form */
 	len--;
@@ -344,7 +360,7 @@ opensslecdsa_todns(const dst_key_t *key, isc_buffer_t *data) {
 		DST_RET (ISC_R_NOSPACE);
 	cp = buf;
 	if (!i2o_ECPublicKey(eckey, &cp))
-		DST_RET (ISC_R_FAILURE);
+		DST_RET (dst__openssl_toresult(ISC_R_FAILURE));
 	memcpy(r.base, buf + 1, len);
 	isc_buffer_add(data, len);
 	ret = ISC_R_SUCCESS;
@@ -393,16 +409,16 @@ opensslecdsa_fromdns(dst_key_t *key, isc_buffer_t *data) {
 	if (o2i_ECPublicKey(&eckey,
 			    (const unsigned char **) &cp,
 			    (long) len + 1) == NULL)
-		DST_RET (DST_R_INVALIDPUBLICKEY);
+		DST_RET (dst__openssl_toresult(DST_R_INVALIDPUBLICKEY));
 	if (EC_KEY_check_key(eckey) != 1)
-		DST_RET (DST_R_INVALIDPUBLICKEY);
+		DST_RET (dst__openssl_toresult(DST_R_INVALIDPUBLICKEY));
 
 	pkey = EVP_PKEY_new();
 	if (pkey == NULL)
 		DST_RET (ISC_R_NOMEMORY);
 	if (!EVP_PKEY_set1_EC_KEY(pkey, eckey)) {
 		EVP_PKEY_free(pkey);
-		DST_RET (ISC_R_FAILURE);
+		DST_RET (dst__openssl_toresult(ISC_R_FAILURE));
 	}
 
 	isc_buffer_forward(data, len);
@@ -430,7 +446,7 @@ opensslecdsa_tofile(const dst_key_t *key, const char *directory) {
 	pkey = key->keydata.pkey;
 	eckey = EVP_PKEY_get1_EC_KEY(pkey);
 	if (eckey == NULL)
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
 	privkey = EC_KEY_get0_private_key(eckey);
 	if (privkey == NULL)
 		DST_RET (ISC_R_FAILURE);
@@ -527,7 +543,7 @@ opensslecdsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
 		DST_RET (ISC_R_NOMEMORY);
 	if (!EVP_PKEY_set1_EC_KEY(pkey, eckey)) {
 		EVP_PKEY_free(pkey);
-		DST_RET (ISC_R_FAILURE);
+		DST_RET (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
 	}
 	key->keydata.pkey = pkey;
 	ret = ISC_R_SUCCESS;

lib/dns/opensslgost_link.c

@@ -121,10 +121,15 @@ opensslgost_verify(dst_context_t *dctx, const isc_region_t *sig) {
 	EVP_PKEY *pkey = key->keydata.pkey;
 
 	status = EVP_VerifyFinal(evp_md_ctx, sig->base, sig->length, pkey);
-	if (status != 1)
+	switch (status) {
+	case 1:
+		return (ISC_R_SUCCESS);
+	case 0:
 		return (dst__openssl_toresult(DST_R_VERIFYFAILURE));
-
-	return (ISC_R_SUCCESS);
+	default:
+		return (dst__openssl_toresult2("EVP_VerifyFinal",
+					       DST_R_VERIFYFAILURE));
+	}
 }
 
 static isc_boolean_t
@@ -168,22 +173,27 @@ opensslgost_generate(dst_key_t *key, int unused, void (*callback)(int)) {
 		void (*fptr)(int);
 	} u;
 	EVP_PKEY *pkey = NULL;
+	isc_result_t ret;
 
 	UNUSED(unused);
 	ctx = EVP_PKEY_CTX_new_id(NID_id_GostR3410_2001, NULL);
 	if (ctx == NULL)
-		goto err;
+		DST_RET(dst__openssl_toresult2("EVP_PKEY_CTX_new_id",
+					       DST_R_OPENSSLFAILURE));
 	if (callback != NULL) {
 		u.fptr = callback;
 		EVP_PKEY_CTX_set_app_data(ctx, u.dptr);
 		EVP_PKEY_CTX_set_cb(ctx, &progress_cb);
 	}
 	if (EVP_PKEY_keygen_init(ctx) <= 0)
-		goto err;
+		DST_RET(dst__openssl_toresult2("EVP_PKEY_keygen_init",
+					       DST_R_OPENSSLFAILURE));
 	if (EVP_PKEY_CTX_ctrl_str(ctx, "paramset", "A") <= 0)
-		goto err;
+		DST_RET(dst__openssl_toresult2("EVP_PKEY_CTX_ctrl_str",
+					       DST_R_OPENSSLFAILURE));
 	if (EVP_PKEY_keygen(ctx, &pkey) <= 0)
-		goto err;
+		DST_RET(dst__openssl_toresult2("EVP_PKEY_keygen",
+					       DST_R_OPENSSLFAILURE));
 	key->keydata.pkey = pkey;
 	EVP_PKEY_CTX_free(ctx);
 	return (ISC_R_SUCCESS);
@@ -193,7 +203,7 @@ err:
 		EVP_PKEY_free(pkey);
 	if (ctx != NULL)
 		EVP_PKEY_CTX_free(ctx);
-	return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+	return (ret);
 }
 
 static isc_boolean_t
@@ -267,7 +277,8 @@ opensslgost_fromdns(dst_key_t *key, isc_buffer_t *data) {
 
 	p = der;
 	if (d2i_PUBKEY(&pkey, &p, (long) sizeof(der)) == NULL)
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("d2i_PUBKEY",
+					       DST_R_OPENSSLFAILURE));
 	key->keydata.pkey = pkey;
 
 	return (ISC_R_SUCCESS);
@@ -293,7 +304,8 @@ opensslgost_tofile(const dst_key_t *key, const char *directory) {
 
 	p = der;
 	if (i2d_PrivateKey(pkey, &p) != len) {
-		result = dst__openssl_toresult(DST_R_OPENSSLFAILURE);
+		result = dst__openssl_toresult2("i2d_PrivateKey",
+						DST_R_OPENSSLFAILURE);
 		goto fail;
 	}
 
@@ -328,7 +340,8 @@ opensslgost_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
 	p = priv.elements[0].data;
 	if (d2i_PrivateKey(NID_id_GostR3410_2001, &pkey, &p,
 			   (long) priv.elements[0].length) == NULL)
-		DST_RET(DST_R_INVALIDPRIVATEKEY);
+		DST_RET(dst__openssl_toresult2("d2i_PrivateKey",
+					       DST_R_INVALIDPRIVATEKEY));
 	key->keydata.pkey = pkey;
 	key->key_size = EVP_PKEY_bits(pkey);
 	dst__privstruct_free(&priv, mctx);
@@ -378,35 +391,47 @@ static dst_func_t opensslgost_functions = {
 
 isc_result_t
 dst__opensslgost_init(dst_func_t **funcp) {
+	isc_result_t ret;
+
 	REQUIRE(funcp != NULL);
 
 	/* check if the gost engine works properly */
 	e = ENGINE_by_id("gost");
 	if (e == NULL)
-		return (DST_R_OPENSSLFAILURE);
+		return (dst__openssl_toresult2("ENGINE_by_id",
+					       DST_R_OPENSSLFAILURE));
 	if (ENGINE_init(e) <= 0) {
 		ENGINE_free(e);
 		e = NULL;
-		return (DST_R_OPENSSLFAILURE);
+		return (dst__openssl_toresult2("ENGINE_init",
+					       DST_R_OPENSSLFAILURE));
 	}
 	/* better than to rely on digest_gost symbol */
 	opensslgost_digest = ENGINE_get_digest(e, NID_id_GostR3411_94);
+	if (opensslgost_digest == NULL)
+		DST_RET(dst__openssl_toresult2("ENGINE_get_digest",
+					       DST_R_OPENSSLFAILURE));
 	/* from openssl.cnf */
-	if ((opensslgost_digest == NULL) ||
-	    (ENGINE_register_pkey_asn1_meths(e) <= 0) ||
-	    (ENGINE_ctrl_cmd_string(e,
-				    "CRYPT_PARAMS",
-				    "id-Gost28147-89-CryptoPro-A-ParamSet",
-				    0) <= 0)) {
-		ENGINE_finish(e);
-		ENGINE_free(e);
-		e = NULL;
-		return (DST_R_OPENSSLFAILURE);
-	}
+	if (ENGINE_register_pkey_asn1_meths(e) <= 0)
+		DST_RET(dst__openssl_toresult2(
+				"ENGINE_register_pkey_asn1_meths",
+				DST_R_OPENSSLFAILURE));
+	if (ENGINE_ctrl_cmd_string(e,
+				   "CRYPT_PARAMS",
+				   "id-Gost28147-89-CryptoPro-A-ParamSet",
+				   0) <= 0)
+		DST_RET(dst__openssl_toresult2("ENGINE_ctrl_cmd_string",
+					       DST_R_OPENSSLFAILURE));
 
 	if (*funcp == NULL)
 		*funcp = &opensslgost_functions;
 	return (ISC_R_SUCCESS);
+
+ err:
+	ENGINE_finish(e);
+	ENGINE_free(e);
+	e = NULL;
+	return (ret);
 }
 
 #else /* HAVE_OPENSSL_GOST */

lib/dns/opensslrsa_link.c

@@ -163,7 +163,8 @@ opensslrsa_createctx(dst_key_t *key, dst_context_t *dctx) {
 
 	if (!EVP_DigestInit_ex(evp_md_ctx, type, NULL)) {
 		EVP_MD_CTX_destroy(evp_md_ctx);
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("EVP_DigestInit_ex",
+					       ISC_R_FAILURE));
 	}
 	dctx->ctxdata.evp_md_ctx = evp_md_ctx;
 #else
@@ -311,7 +312,8 @@ opensslrsa_adddata(dst_context_t *dctx, const isc_region_t *data) {
 
 #if USE_EVP
 	if (!EVP_DigestUpdate(evp_md_ctx, data->base, data->length)) {
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("EVP_DigestUpdate",
+					       ISC_R_FAILURE));
 	}
 #else
 	switch (dctx->key->key_alg) {
@@ -381,7 +383,6 @@ opensslrsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
 	int status;
 	int type = 0;
 	unsigned int digestlen = 0;
-	char *message;
 	unsigned long err;
 	const char* file;
 	int line;
@@ -404,7 +405,8 @@ opensslrsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
 		return (ISC_R_NOSPACE);
 
 	if (!EVP_SignFinal(evp_md_ctx, r.base, &siglen, pkey)) {
-		return (ISC_R_FAILURE);
+		return (dst__openssl_toresult2("EVP_SignFinal",
+					       ISC_R_FAILURE));
 	}
 #else
 	if (r.length < (unsigned int) RSA_size(rsa))
@@ -496,13 +498,9 @@ opensslrsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
 	INSIST(type != 0);
 	status = RSA_sign(type, digest, digestlen, r.base, &siglen, rsa);
 #endif
-	if (status == 0) {
-		err = ERR_peek_error_line(&file, &line);
-		if (err != 0U) {
-			message = ERR_error_string(err, NULL);
-		}
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
-	}
+	if (status == 0)
+		return (dst__openssl_toresult2("RSA_sign",
+					       DST_R_OPENSSLFAILURE));
 #endif
 
 	isc_buffer_add(sig, siglen);
@@ -635,7 +633,9 @@ opensslrsa_verify2(dst_context_t *dctx, int maxbits, const isc_region_t *sig) {
 						    original, rsa,
 						    RSA_PKCS1_PADDING);
 			if (status <= 0)
-				return (DST_R_VERIFYFAILURE);
+				return (dst__openssl_toresult2(
+						"RSA_public_decrypt",
+						DST_R_VERIFYFAILURE));
 			if (status != (int)(prefixlen + digestlen))
 				return (DST_R_VERIFYFAILURE);
 			if (memcmp(original, prefix, prefixlen))
@@ -656,7 +656,8 @@ opensslrsa_verify2(dst_context_t *dctx, int maxbits, const isc_region_t *sig) {
 #endif
 #endif
 	if (status != 1)
-		return (dst__openssl_toresult(DST_R_VERIFYFAILURE));
+		return (dst__openssl_toresult2("RSA_verify",
+					       DST_R_VERIFYFAILURE));
 
 	return (ISC_R_SUCCESS);
 }
@@ -751,6 +752,7 @@ progress_cb(int p, int n, BN_GENCB *cb)
 
 static isc_result_t
 opensslrsa_generate(dst_key_t *key, int exp, void (*callback)(int)) {
+	isc_result_t ret = DST_R_OPENSSLFAILURE;
 #if OPENSSL_VERSION_NUMBER > 0x00908000L
 	BN_GENCB cb;
 	union {
@@ -801,6 +803,8 @@ opensslrsa_generate(dst_key_t *key, int exp, void (*callback)(int)) {
 #endif
 		return (ISC_R_SUCCESS);
 	}
+	ret = dst__openssl_toresult2("RSA_generate_key_ex",
+				     DST_R_OPENSSLFAILURE);
 
 err:
 #if USE_EVP
@@ -811,7 +815,7 @@ err:
 		BN_free(e);
 	if (rsa != NULL)
 		RSA_free(rsa);
-	return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+	return (dst__openssl_toresult(ret));
 #else
 	RSA *rsa;
 	unsigned long e;
@@ -835,7 +839,8 @@ err:
 #if USE_EVP
 		EVP_PKEY_free(pkey);
 #endif
-		return (dst__openssl_toresult(DST_R_OPENSSLFAILURE));
+		return (dst__openssl_toresult2("RSA_generate_key",
+					       DST_R_OPENSSLFAILURE));
 	}
 	SET_FLAGS(rsa);
 #if USE_EVP
@@ -1034,6 +1039,7 @@ opensslrsa_tofile(const dst_key_t *key, const char *directory) {
 	rsa = key->keydata.rsa;
 #endif
 
+	memset(bufs, 0, sizeof(bufs));
 	for (i = 0; i < 8; i++) {
 		bufs[i] = isc_mem_get(key->mctx, BN_num_bytes(rsa->n));
 		if (bufs[i] == NULL) {
@@ -1187,7 +1193,7 @@ opensslrsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
 	/* read private key file */
 	ret = dst__privstruct_parse(key, DST_ALG_RSA, lexer, mctx, &priv);
 	if (ret != ISC_R_SUCCESS)
-		return (ret);
+		goto err;
 
 	for (i = 0; i < priv.nelements; i++) {
 		switch (priv.elements[i].tag) {
@@ -1213,10 +1219,10 @@ opensslrsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
 		if (e == NULL)
 			DST_RET(DST_R_NOENGINE);
 		pkey = ENGINE_load_private_key(e, label, NULL, NULL);
-		if (pkey == NULL) {
-			/* ERR_print_errors_fp(stderr); */
-			DST_RET(ISC_R_NOTFOUND);
-		}
+		if (pkey == NULL)
+			DST_RET(dst__openssl_toresult2(
+					"ENGINE_load_private_key",
+					ISC_R_NOTFOUND));
 		key->engine = isc_mem_strdup(key->mctx, engine);
 		if (key->engine == NULL)
 			DST_RET(ISC_R_NOMEMORY);
@@ -1365,7 +1371,8 @@ opensslrsa_fromlabel(dst_key_t *key, const char *engine, const char *label,
 	}
 	pkey = ENGINE_load_private_key(e, label, NULL, NULL);
 	if (pkey == NULL)
-		DST_RET(ISC_R_NOTFOUND);
+		DST_RET(dst__openssl_toresult2("ENGINE_load_private_key",
+					       ISC_R_NOTFOUND));
 	if (engine != NULL) {
 		key->engine = isc_mem_strdup(key->mctx, engine);
 		if (key->engine == NULL)