--- /dev/null
+/* $OpenBSD: dercache.c,v 1.1 2023/04/25 21:51:44 job Exp $ */
+/*
+ * Copyright (c) 2023 Job Snijders <job@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This program tests whether the presence of "->enc.modified = 1;"
+ * in select X509 setter functions properly triggers invalidation of cached
+ * DER.
+ */
+
+#include <err.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/evp.h>
+#include <openssl/rsa.h>
+#include <openssl/x509.h>
+
+#define SETUP() \
+ derp = der; \
+ if ((a = d2i_X509(NULL, &derp, dersz)) == NULL) \
+ errx(1, "d2i_X509"); \
+ if ((der2sz = i2d_X509(a, &der2)) <= 0) \
+ errx(1, "i2d_X509"); \
+ der2p = der2;
+
+#define CLEANUP() \
+ X509_free(a); \
+ a = NULL; \
+ free(der2); \
+ der2 = NULL;
+
+#define CLEANUPSETUP() \
+ CLEANUP() \
+ SETUP()
+
+#define SETX509NAME(fname, value, cert) \
+ if ((xn = X509_NAME_new()) == NULL) \
+ err(1, NULL); \
+ if (!X509_NAME_add_entry_by_txt(xn, "C", MBSTRING_ASC, \
+ (const unsigned char*) value, -1, -1, 0)) \
+ errx(1, "X509_NAME_add_entry_by_txt"); \
+ if (!fname(cert, xn)) \
+ errx(1, "fname"); \
+ X509_NAME_free(xn); \
+ xn = NULL;
+
+#define SETASN1TIME(fname, value, cert) \
+ if ((at = ASN1_TIME_new()) == NULL) \
+ err(1, NULL); \
+ if ((at = X509_gmtime_adj(NULL, value)) == NULL) \
+ errx(1, "X509_gmtime_adj"); \
+ if (!fname(cert, at)) \
+ errx(1, "fname"); \
+ ASN1_TIME_free(at); \
+ at = NULL;
+
+#define SETINTEGER(fname, value, cert) \
+ if ((ai = ASN1_INTEGER_new()) == NULL) \
+ err(1, NULL); \
+ if (!ASN1_INTEGER_set(ai, value)) \
+ errx(1, "ASN1_INTEGER_set"); \
+ if (!fname(cert, ai)) \
+ errx(1, "fname"); \
+ ASN1_INTEGER_free(ai); \
+ ai = NULL;
+
+
+static int
+x509_compare(char *f, X509 *a, const unsigned char *der, long dersz)
+{
+ unsigned char *der_test = NULL;
+ long der_testsz;
+ int rc = 0;
+
+ if ((der_testsz = i2d_X509(a, &der_test)) <= 0)
+ errx(1, "i2d_X509");
+
+ if (dersz == der_testsz) {
+ if (memcmp(der, der_test, dersz) == 0) {
+ warnx("%s() didn't invalidate DER cache", f);
+ rc = 1;
+ } else
+ warnx("%s() OK", f);
+ } else
+ warnx("%s() OK", f);
+
+ free(der_test);
+ return rc;
+}
+
+int
+main(void)
+{
+ ASN1_INTEGER *ai = NULL;
+ ASN1_TIME *at = NULL;
+ EVP_PKEY *pkey = NULL;
+ EVP_PKEY_CTX *pkey_ctx = NULL;
+ X509_NAME *xn = NULL;
+ X509 *a, *x;
+ const unsigned char *derp, *der2p;
+ unsigned char *der = NULL, *der2 = NULL;
+ long dersz, der2sz;
+ int ret = 0;
+
+ if ((x = X509_new()) == NULL)
+ err(1, NULL);
+
+ if ((pkey_ctx = EVP_PKEY_CTX_new_id(EVP_PKEY_RSA, NULL)) == NULL)
+ errx(1, "EVP_PKEY_CTX_new_id");
+ if (EVP_PKEY_keygen_init(pkey_ctx) != 1)
+ errx(1, "EVP_PKEY_keygen_init");
+ if (EVP_PKEY_CTX_set_rsa_keygen_bits(pkey_ctx, 2048) <= 0)
+ errx(1, "EVP_PKEY_CTX_set_rsa_keygen_bits");
+ if (EVP_PKEY_keygen(pkey_ctx, &pkey) <= 0)
+ errx(1, "EVP_PKEY_keygen");
+ if (X509_set_pubkey(x, pkey) != 1)
+ errx(1, "X509_set_pubkey");
+
+ SETINTEGER(X509_set_serialNumber, 1, x)
+ SETASN1TIME(X509_set_notBefore, 0, x)
+ SETASN1TIME(X509_set_notAfter, 60, x)
+ SETX509NAME(X509_set_issuer_name, "NL", x)
+ SETX509NAME(X509_set_subject_name, "BE", x)
+
+ // one time creation of the original DER
+ if (!X509_sign(x, pkey, EVP_sha256()))
+ errx(1, "X509_sign");
+ if ((dersz = i2d_X509(x, &der)) <= 0)
+ errx(1, "i2d_X509");
+
+ SETUP()
+
+ // test X509_set_version
+ if (!X509_set_version(a, 2))
+ errx(1, "X509_set_version");
+ ret += x509_compare("X509_set_version", a, der2p, der2sz);
+
+ CLEANUPSETUP()
+
+ // test X509_set_serialNumber
+ SETINTEGER(X509_set_serialNumber, 2, a)
+ ret += x509_compare("X509_set_serialNumber", a, der2p, der2sz);
+
+ CLEANUPSETUP()
+
+ // test X509_set_issuer_name
+ SETX509NAME(X509_set_issuer_name, "DE", a)
+ ret += x509_compare("X509_set_issuer_name", a, der2p, der2sz);
+
+ CLEANUPSETUP()
+
+ // test X509_set_subject_name
+ SETX509NAME(X509_set_subject_name, "FR", a)
+ ret += x509_compare("X509_set_subject_name", a, der2p, der2sz);
+
+ CLEANUPSETUP()
+
+ // test X509_set_notBefore
+ SETASN1TIME(X509_set_notBefore, 120, a)
+ ret += x509_compare("X509_set_notBefore", a, der2p, der2sz);
+
+ CLEANUPSETUP()
+
+ // test X509_set_notAfter
+ SETASN1TIME(X509_set_notAfter, 180, a)
+ ret += x509_compare("X509_set_notAfter", a, der2p, der2sz);
+
+ CLEANUPSETUP()
+
+ // test X509_set_pubkey
+ if (EVP_PKEY_keygen(pkey_ctx, &pkey) <= 0)
+ errx(1, "EVP_PKEY_keygen");
+ if (X509_set_pubkey(a, pkey) != 1)
+ errx(1, "X509_set_pubkey");
+ ret += x509_compare("X509_set_pubkey", a, der2p, der2sz);
+
+ CLEANUP()
+
+ if (ret)
+ return 1;
+}
projects / openbsd / commitdiff