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openssl/test/v3nametest.c
Matt Caswell fecb3aae22 Update copyright year 
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Release: yes
2022-05-03 13:34:51 +01:00

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/*
* Copyright 2012-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include <openssl/e_os2.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "internal/nelem.h"
#include "testutil.h"
static const char *const names[] = {
"a", "b", ".", "*", "@",
".a", "a.", ".b", "b.", ".*", "*.", "*@", "@*", "a@", "@a", "b@", "..",
"-example.com", "example-.com",
"@@", "**", "*.com", "*com", "*.*.com", "*com", "com*", "*example.com",
"*@example.com", "test@*.example.com", "example.com", "www.example.com",
"test.www.example.com", "*.example.com", "*.www.example.com",
"test.*.example.com", "www.*.com",
".www.example.com", "*www.example.com",
"example.net", "xn--rger-koa.example.com",
"*.xn--rger-koa.example.com", "www.xn--rger-koa.example.com",
"*.good--example.com", "www.good--example.com",
"*.xn--bar.com", "xn--foo.xn--bar.com",
"a.example.com", "b.example.com",
"postmaster@example.com", "Postmaster@example.com",
"postmaster@EXAMPLE.COM",
NULL
};
static const char *const exceptions[] = {
"set CN: host: [*.example.com] matches [a.example.com]",
"set CN: host: [*.example.com] matches [b.example.com]",
"set CN: host: [*.example.com] matches [www.example.com]",
"set CN: host: [*.example.com] matches [xn--rger-koa.example.com]",
"set CN: host: [*.www.example.com] matches [test.www.example.com]",
"set CN: host: [*.www.example.com] matches [.www.example.com]",
"set CN: host: [*www.example.com] matches [www.example.com]",
"set CN: host: [test.www.example.com] matches [.www.example.com]",
"set CN: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
"set CN: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
"set CN: host: [*.good--example.com] matches [www.good--example.com]",
"set CN: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
"set CN: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
"set emailAddress: email: [postmaster@example.com] does not match [Postmaster@example.com]",
"set emailAddress: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
"set emailAddress: email: [Postmaster@example.com] does not match [postmaster@example.com]",
"set emailAddress: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
"set dnsName: host: [*.example.com] matches [www.example.com]",
"set dnsName: host: [*.example.com] matches [a.example.com]",
"set dnsName: host: [*.example.com] matches [b.example.com]",
"set dnsName: host: [*.example.com] matches [xn--rger-koa.example.com]",
"set dnsName: host: [*.www.example.com] matches [test.www.example.com]",
"set dnsName: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
"set dnsName: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
"set dnsName: host: [*.www.example.com] matches [.www.example.com]",
"set dnsName: host: [*www.example.com] matches [www.example.com]",
"set dnsName: host: [test.www.example.com] matches [.www.example.com]",
"set dnsName: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
"set dnsName: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
"set dnsName: host: [*.good--example.com] matches [www.good--example.com]",
"set rfc822Name: email: [postmaster@example.com] does not match [Postmaster@example.com]",
"set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@example.com]",
"set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
"set rfc822Name: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
NULL
};
static int is_exception(const char *msg)
{
const char *const *p;
for (p = exceptions; *p; ++p)
if (strcmp(msg, *p) == 0)
return 1;
return 0;
}
static int set_cn(X509 *crt, ...)
{
int ret = 0;
X509_NAME *n = NULL;
va_list ap;
va_start(ap, crt);
n = X509_NAME_new();
if (n == NULL)
goto out;
while (1) {
int nid;
const char *name;
nid = va_arg(ap, int);
if (nid == 0)
break;
name = va_arg(ap, const char *);
if (!X509_NAME_add_entry_by_NID(n, nid, MBSTRING_ASC,
(unsigned char *)name, -1, -1, 1))
goto out;
}
if (!X509_set_subject_name(crt, n))
goto out;
ret = 1;
out:
X509_NAME_free(n);
va_end(ap);
return ret;
}
/*-
int X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex,
int nid, int crit, ASN1_OCTET_STRING *data);
int X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
*/
static int set_altname(X509 *crt, ...)
{
int ret = 0;
GENERAL_NAMES *gens = NULL;
GENERAL_NAME *gen = NULL;
ASN1_IA5STRING *ia5 = NULL;
va_list ap;
va_start(ap, crt);
gens = sk_GENERAL_NAME_new_null();
if (gens == NULL)
goto out;
while (1) {
int type;
const char *name;
type = va_arg(ap, int);
if (type == 0)
break;
name = va_arg(ap, const char *);
gen = GENERAL_NAME_new();
if (gen == NULL)
goto out;
ia5 = ASN1_IA5STRING_new();
if (ia5 == NULL)
goto out;
if (!ASN1_STRING_set(ia5, name, -1))
goto out;
switch (type) {
case GEN_EMAIL:
case GEN_DNS:
GENERAL_NAME_set0_value(gen, type, ia5);
ia5 = NULL;
break;
default:
abort();
}
sk_GENERAL_NAME_push(gens, gen);
gen = NULL;
}
if (!X509_add1_ext_i2d(crt, NID_subject_alt_name, gens, 0, 0))
goto out;
ret = 1;
out:
ASN1_IA5STRING_free(ia5);
GENERAL_NAME_free(gen);
GENERAL_NAMES_free(gens);
va_end(ap);
return ret;
}
static int set_cn1(X509 *crt, const char *name)
{
return set_cn(crt, NID_commonName, name, 0);
}
static int set_cn_and_email(X509 *crt, const char *name)
{
return set_cn(crt, NID_commonName, name,
NID_pkcs9_emailAddress, "dummy@example.com", 0);
}
static int set_cn2(X509 *crt, const char *name)
{
return set_cn(crt, NID_commonName, "dummy value",
NID_commonName, name, 0);
}
static int set_cn3(X509 *crt, const char *name)
{
return set_cn(crt, NID_commonName, name,
NID_commonName, "dummy value", 0);
}
static int set_email1(X509 *crt, const char *name)
{
return set_cn(crt, NID_pkcs9_emailAddress, name, 0);
}
static int set_email2(X509 *crt, const char *name)
{
return set_cn(crt, NID_pkcs9_emailAddress, "dummy@example.com",
NID_pkcs9_emailAddress, name, 0);
}
static int set_email3(X509 *crt, const char *name)
{
return set_cn(crt, NID_pkcs9_emailAddress, name,
NID_pkcs9_emailAddress, "dummy@example.com", 0);
}
static int set_email_and_cn(X509 *crt, const char *name)
{
return set_cn(crt, NID_pkcs9_emailAddress, name,
NID_commonName, "www.example.org", 0);
}
static int set_altname_dns(X509 *crt, const char *name)
{
return set_altname(crt, GEN_DNS, name, 0);
}
static int set_altname_email(X509 *crt, const char *name)
{
return set_altname(crt, GEN_EMAIL, name, 0);
}
struct set_name_fn {
int (*fn) (X509 *, const char *);
const char *name;
int host;
int email;
};
static const struct set_name_fn name_fns[] = {
{set_cn1, "set CN", 1, 0},
{set_cn2, "set CN", 1, 0},
{set_cn3, "set CN", 1, 0},
{set_cn_and_email, "set CN", 1, 0},
{set_email1, "set emailAddress", 0, 1},
{set_email2, "set emailAddress", 0, 1},
{set_email3, "set emailAddress", 0, 1},
{set_email_and_cn, "set emailAddress", 0, 1},
{set_altname_dns, "set dnsName", 1, 0},
{set_altname_email, "set rfc822Name", 0, 1},
};
static X509 *make_cert(void)
{
X509 *crt = NULL;
if (!TEST_ptr(crt = X509_new()))
return NULL;
if (!TEST_true(X509_set_version(crt, X509_VERSION_3))) {
X509_free(crt);
return NULL;
}
return crt;
}
static int check_message(const struct set_name_fn *fn, const char *op,
const char *nameincert, int match, const char *name)
{
char msg[1024];
if (match < 0)
return 1;
BIO_snprintf(msg, sizeof(msg), "%s: %s: [%s] %s [%s]",
fn->name, op, nameincert,
match ? "matches" : "does not match", name);
if (is_exception(msg))
return 1;
TEST_error("%s", msg);
return 0;
}
static int run_cert(X509 *crt, const char *nameincert,
const struct set_name_fn *fn)
{
const char *const *pname = names;
int failed = 0;
for (; *pname != NULL; ++pname) {
int samename = OPENSSL_strcasecmp(nameincert, *pname) == 0;
size_t namelen = strlen(*pname);
char *name = OPENSSL_malloc(namelen + 1);
int match, ret;
memcpy(name, *pname, namelen + 1);
match = -1;
if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen, 0, NULL),
0)) {
failed = 1;
} else if (fn->host) {
if (ret == 1 && !samename)
match = 1;
if (ret == 0 && samename)
match = 0;
} else if (ret == 1)
match = 1;
if (!TEST_true(check_message(fn, "host", nameincert, match, *pname)))
failed = 1;
match = -1;
if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen,
X509_CHECK_FLAG_NO_WILDCARDS,
NULL), 0)) {
failed = 1;
} else if (fn->host) {
if (ret == 1 && !samename)
match = 1;
if (ret == 0 && samename)
match = 0;
} else if (ret == 1)
match = 1;
if (!TEST_true(check_message(fn, "host-no-wildcards",
nameincert, match, *pname)))
failed = 1;
match = -1;
ret = X509_check_email(crt, name, namelen, 0);
if (fn->email) {
if (ret && !samename)
match = 1;
if (!ret && samename && strchr(nameincert, '@') != NULL)
match = 0;
} else if (ret)
match = 1;
if (!TEST_true(check_message(fn, "email", nameincert, match, *pname)))
failed = 1;
OPENSSL_free(name);
}
return failed == 0;
}
static int call_run_cert(int i)
{
int failed = 0;
const struct set_name_fn *pfn = &name_fns[i];
X509 *crt;
const char *const *pname;
TEST_info("%s", pfn->name);
for (pname = names; *pname != NULL; pname++) {
if (!TEST_ptr(crt = make_cert())
|| !TEST_true(pfn->fn(crt, *pname))
|| !run_cert(crt, *pname, pfn))
failed = 1;
X509_free(crt);
}
return failed == 0;
}
static struct gennamedata {
const unsigned char der[22];
size_t derlen;
} gennames[] = {
{
/*
* [0] {
* OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
* [0] {
* SEQUENCE {}
* }
* }
*/
{
0xa0, 0x13, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x02, 0x30, 0x00
},
21
}, {
/*
* [0] {
* OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
* [0] {
* [APPLICATION 0] {}
* }
* }
*/
{
0xa0, 0x13, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x02, 0x60, 0x00
},
21
}, {
/*
* [0] {
* OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
* [0] {
* UTF8String { "a" }
* }
* }
*/
{
0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x0c, 0x01, 0x61
},
22
}, {
/*
* [0] {
* OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.2 }
* [0] {
* UTF8String { "a" }
* }
* }
*/
{
0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
0x01, 0x84, 0xb7, 0x09, 0x02, 0x02, 0xa0, 0x03, 0x0c, 0x01, 0x61
},
22
}, {
/*
* [0] {
* OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
* [0] {
* UTF8String { "b" }
* }
* }
*/
{
0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x0c, 0x01, 0x62
},
22
}, {
/*
* [0] {
* OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
* [0] {
* BOOLEAN { TRUE }
* }
* }
*/
{
0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x01, 0x01, 0xff
},
22
}, {
/*
* [0] {
* OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
* [0] {
* BOOLEAN { FALSE }
* }
* }
*/
{
0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x01, 0x01, 0x00
},
22
}, {
/* [1 PRIMITIVE] { "a" } */
{
0x81, 0x01, 0x61
},
3
}, {
/* [1 PRIMITIVE] { "b" } */
{
0x81, 0x01, 0x62
},
3
}, {
/* [2 PRIMITIVE] { "a" } */
{
0x82, 0x01, 0x61
},
3
}, {
/* [2 PRIMITIVE] { "b" } */
{
0x82, 0x01, 0x62
},
3
}, {
/*
* [4] {
* SEQUENCE {
* SET {
* SEQUENCE {
* # commonName
* OBJECT_IDENTIFIER { 2.5.4.3 }
* UTF8String { "a" }
* }
* }
* }
* }
*/
{
0xa4, 0x0e, 0x30, 0x0c, 0x31, 0x0a, 0x30, 0x08, 0x06, 0x03, 0x55,
0x04, 0x03, 0x0c, 0x01, 0x61
},
16
}, {
/*
* [4] {
* SEQUENCE {
* SET {
* SEQUENCE {
* # commonName
* OBJECT_IDENTIFIER { 2.5.4.3 }
* UTF8String { "b" }
* }
* }
* }
* }
*/
{
0xa4, 0x0e, 0x30, 0x0c, 0x31, 0x0a, 0x30, 0x08, 0x06, 0x03, 0x55,
0x04, 0x03, 0x0c, 0x01, 0x62
},
16
}, {
/*
* [5] {
* [1] {
* UTF8String { "a" }
* }
* }
*/
{
0xa5, 0x05, 0xa1, 0x03, 0x0c, 0x01, 0x61
},
7
}, {
/*
* [5] {
* [1] {
* UTF8String { "b" }
* }
* }
*/
{
0xa5, 0x05, 0xa1, 0x03, 0x0c, 0x01, 0x62
},
7
}, {
/*
* [5] {
* [0] {
* UTF8String {}
* }
* [1] {
* UTF8String { "a" }
* }
* }
*/
{
0xa5, 0x09, 0xa0, 0x02, 0x0c, 0x00, 0xa1, 0x03, 0x0c, 0x01, 0x61
},
11
}, {
/*
* [5] {
* [0] {
* UTF8String { "a" }
* }
* [1] {
* UTF8String { "a" }
* }
* }
*/
{
0xa5, 0x0a, 0xa0, 0x03, 0x0c, 0x01, 0x61, 0xa1, 0x03, 0x0c, 0x01,
0x61
},
12
}, {
/*
* [5] {
* [0] {
* UTF8String { "b" }
* }
* [1] {
* UTF8String { "a" }
* }
* }
*/
{
0xa5, 0x0a, 0xa0, 0x03, 0x0c, 0x01, 0x62, 0xa1, 0x03, 0x0c, 0x01,
0x61
},
12
}, {
/* [6 PRIMITIVE] { "a" } */
{
0x86, 0x01, 0x61
},
3
}, {
/* [6 PRIMITIVE] { "b" } */
{
0x86, 0x01, 0x62
},
3
}, {
/* [7 PRIMITIVE] { `11111111` } */
{
0x87, 0x04, 0x11, 0x11, 0x11, 0x11
},
6
}, {
/* [7 PRIMITIVE] { `22222222`} */
{
0x87, 0x04, 0x22, 0x22, 0x22, 0x22
},
6
}, {
/* [7 PRIMITIVE] { `11111111111111111111111111111111` } */
{
0x87, 0x10, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11
},
18
}, {
/* [7 PRIMITIVE] { `22222222222222222222222222222222` } */
{
0x87, 0x10, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22
},
18
}, {
/* [8 PRIMITIVE] { 1.2.840.113554.4.1.72585.2.1 } */
{
0x88, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04, 0x01, 0x84,
0xb7, 0x09, 0x02, 0x01
},
15
}, {
/* [8 PRIMITIVE] { 1.2.840.113554.4.1.72585.2.2 } */
{
0x88, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04, 0x01, 0x84,
0xb7, 0x09, 0x02, 0x02
},
15
}
};
static int test_GENERAL_NAME_cmp(void)
{
size_t i, j;
GENERAL_NAME **namesa = OPENSSL_malloc(sizeof(*namesa)
* OSSL_NELEM(gennames));
GENERAL_NAME **namesb = OPENSSL_malloc(sizeof(*namesb)
* OSSL_NELEM(gennames));
int testresult = 0;
if (!TEST_ptr(namesa) || !TEST_ptr(namesb))
goto end;
for (i = 0; i < OSSL_NELEM(gennames); i++) {
const unsigned char *derp = gennames[i].der;
/*
* We create two versions of each GENERAL_NAME so that we ensure when
* we compare them they are always different pointers.
*/
namesa[i] = d2i_GENERAL_NAME(NULL, &derp, gennames[i].derlen);
derp = gennames[i].der;
namesb[i] = d2i_GENERAL_NAME(NULL, &derp, gennames[i].derlen);
if (!TEST_ptr(namesa[i]) || !TEST_ptr(namesb[i]))
goto end;
}
/* Every name should be equal to itself and not equal to any others. */
for (i = 0; i < OSSL_NELEM(gennames); i++) {
for (j = 0; j < OSSL_NELEM(gennames); j++) {
if (i == j) {
if (!TEST_int_eq(GENERAL_NAME_cmp(namesa[i], namesb[j]), 0))
goto end;
} else {
if (!TEST_int_ne(GENERAL_NAME_cmp(namesa[i], namesb[j]), 0))
goto end;
}
}
}
testresult = 1;
end:
for (i = 0; i < OSSL_NELEM(gennames); i++) {
if (namesa != NULL)
GENERAL_NAME_free(namesa[i]);
if (namesb != NULL)
GENERAL_NAME_free(namesb[i]);
}
OPENSSL_free(namesa);
OPENSSL_free(namesb);
return testresult;
}
int setup_tests(void)
{
ADD_ALL_TESTS(call_run_cert, OSSL_NELEM(name_fns));
ADD_TEST(test_GENERAL_NAME_cmp);
return 1;
}
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