-/* $OpenBSD: x509_asn1.c,v 1.1 2023/04/26 08:58:03 job Exp $ */
+/* $OpenBSD: x509_asn1.c,v 1.2 2023/04/26 10:34:08 job Exp $ */
/*
* Copyright (c) 2023 Job Snijders <job@openbsd.org>
*
#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 void
+x509_setup(unsigned char **der, unsigned char **der2, X509 **x,
+ const unsigned char **cpder, const unsigned char **cpder2, long dersz,
+ long *der2sz)
+{
+ *cpder = *der;
+ if ((*x = d2i_X509(NULL, cpder, dersz)) == NULL)
+ errx(1, "d2i_X509");
+ if ((*der2sz = i2d_X509(*x, der2)) <= 0)
+ errx(1, "i2d_X509");
+ *cpder2 = *der2;
+}
+
+static void
+x509_cleanup(X509 **x, unsigned char **der)
+{
+ X509_free(*x);
+ *x = NULL;
+ free(*der);
+ *der = NULL;
+}
+
+static void
+x509_set_integer(int (*f)(X509 *x, ASN1_INTEGER *ai), X509 **x, int i)
+{
+ ASN1_INTEGER *ai;
+
+ if ((ai = ASN1_INTEGER_new()) == NULL)
+ err(1, NULL);
+ if (!ASN1_INTEGER_set(ai, i))
+ errx(1, "ASN1_INTEGER_set");
+ if (!(*f)(*x, ai))
+ err(1, NULL);
+
+ ASN1_INTEGER_free(ai);
+}
+
+static void
+x509_set_name(int (*f)(X509 *x, X509_NAME *name), X509 **x,
+ const unsigned char *n)
+{
+ X509_NAME *xn;
+
+ if ((xn = X509_NAME_new()) == NULL)
+ err(1, NULL);
+ if (!X509_NAME_add_entry_by_txt(xn, "C", MBSTRING_ASC, n, -1, -1, 0))
+ errx(1, "X509_NAME_add_entry_by_txt");
+ if (!(*f)(*x, xn))
+ err(1, NULL);
+
+ X509_NAME_free(xn);
+}
+static void
+x509_set_time(int (*f)(X509 *x, const ASN1_TIME *tm), X509 **x, int t)
+{
+ ASN1_TIME *at;
+
+ if ((at = ASN1_TIME_new()) == NULL)
+ err(1, NULL);
+ if ((at = X509_gmtime_adj(NULL, t)) == NULL)
+ errx(1, "X509_gmtime_adj");
+ if (!(*f)(*x, at))
+ err(1, NULL);
+
+ ASN1_TIME_free(at);
+}
static int
x509_compare(char *f, X509 *a, const unsigned char *der, long dersz)
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;
+ const unsigned char *cpder, *cpder2;
unsigned char *der = NULL, *der2 = NULL;
long dersz, der2sz;
int ret = 0;
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)
+ x509_set_integer(X509_set_serialNumber, &x, 1);
+ x509_set_time(X509_set_notBefore, &x, 0);
+ x509_set_time(X509_set_notAfter, &x, 60);
+ x509_set_name(X509_set_issuer_name, &x, "NL");
+ x509_set_name(X509_set_subject_name, &x, "BE");
// one time creation of the original DER
if (!X509_sign(x, pkey, EVP_sha256()))
if ((dersz = i2d_X509(x, &der)) <= 0)
errx(1, "i2d_X509");
- SETUP()
-
- // test X509_set_version
+ /* test X509_set_version */
+ x509_setup(&der, &der2, &a, &cpder, &cpder2, dersz, &der2sz);
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
+ ret += x509_compare("X509_set_version", a, cpder2, der2sz);
+ x509_cleanup(&a, &der2);
+
+ /* test X509_set_serialNumber */
+ x509_setup(&der, &der2, &a, &cpder, &cpder2, dersz, &der2sz);
+ x509_set_integer(X509_set_serialNumber, &a, 2);
+ ret += x509_compare("X509_set_serialNumber", a, cpder2, der2sz);
+ x509_cleanup(&a, &der2);
+
+ /* test X509_set_issuer_name */
+ x509_setup(&der, &der2, &a, &cpder, &cpder2, dersz, &der2sz);
+ x509_set_name(X509_set_issuer_name, &a, "DE");
+ ret += x509_compare("X509_set_issuer_name", a, cpder2, der2sz);
+ x509_cleanup(&a, &der2);
+
+ /* test X509_set_subject_name */
+ x509_setup(&der, &der2, &a, &cpder, &cpder2, dersz, &der2sz);
+ x509_set_name(X509_set_subject_name, &a, "FR");
+ ret += x509_compare("X509_set_subject_name", a, cpder2, der2sz);
+ x509_cleanup(&a, &der2);
+
+ /* test X509_set_notBefore */
+ x509_setup(&der, &der2, &a, &cpder, &cpder2, dersz, &der2sz);
+ x509_set_time(X509_set_notBefore, &a, 120);
+ ret += x509_compare("X509_set_notBefore", a, cpder2, der2sz);
+ x509_cleanup(&a, &der2);
+
+ /* test X509_set_notAfter */
+ x509_setup(&der, &der2, &a, &cpder, &cpder2, dersz, &der2sz);
+ x509_set_time(X509_set_notAfter, &a, 180);
+ ret += x509_compare("X509_set_notAfter", a, cpder2, der2sz);
+ x509_cleanup(&a, &der2);
+
+ /* test X509_set_pubkey */
+ x509_setup(&der, &der2, &a, &cpder, &cpder2, dersz, &der2sz);
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()
+ EVP_PKEY_CTX_free(pkey_ctx);
+ EVP_PKEY_free(pkey);
+ ret += x509_compare("X509_set_pubkey", a, cpder2, der2sz);
+ x509_cleanup(&a, &der2);
if (ret)
return 1;
+ return 0;
}