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heimdal/lib/hx509/test_name.c
Nicolas Williams 8af2d79d35 hx509: Add missing CSR extension request support 
This is necessary in order to add proper support for CSRs in kx509,
where the KDC can examine all requested KUs/EKUs/SANs, check
authorization, and issue a certificate with all those extensions if
authorized.

This is the convention used by OpenSSL, of encoding all the KU, EKUs,
and SANs being requested as Extensions as they would appear in the
TBSCertificate, then putting those in as a single Attribute in the CSR's
Attributes list with attribute OID {id-pkcs-9, 14}.

 - expose all hx509_request_*() functions
 - finish support in hx509_request_parse*() for KU, EKU, and SAN CSR
   attributes
 - finish support in hx509_request_to_pkcs10() for encoding all
   requested KU, EKU, and SAN extensions as a CSR extReq (extension request)
 - add hx509_request_add_*() support for:
    - id-pkinit-san and ms-upn-pkinit-san
    - XMPP (Jabber) SAN
    - registeredID (useless but trivial)
 - add hxtool request-create options for all supported SANs
 - add hxtool request-create options for KeyUsage
 - add hxtool request-create options for ExtKeyUsage
 - add hxtool request-print support for all these things
 - fix bugs in existing id-pkinit-san handling

Possible future improvements

 - add HX509_TRACE env var and support (it would be nice to be able to
   observe why some certificate is rejected, or not matched in a query)
 - add testing that CSR creating and printing round-trip for all KUs,
   EKUs, and SANs
   (probably in tests/kdc/check-pkinit.in)
 - add testing that OpenSSL can print a CSR made by hxtool and
   vice-versa
 - hxtool ca: add KU sanity checking (via hx509_ca_sign() and/or friends)
   (don't allow encrypt for signing-only algs)
   (don't allow encrypt for RSA at all, or for RSA with small e exponents)
 - hxtool request-print: warn about all unknown attributes and
   extensions
 - hxtool ca: MAYBE add support for adding requested extensions from the
   --req=CSR
   ("Maybe" because CA operators should really verify and authorize all
    requested attributes, and should acknowledge that they have, and the
    simplest way to do this is to make them add all the corresponding
    CLI arguments to the hxtool ca command, but too, that is
    error-prone, thus it's not clear yet which approach is best.
    Perhaps interactively prompt for yes/no for each attribute.)
 - add additional SAN types:
    - iPAddress                 (useless?)
    - dNSSrv                    (useful!)
    - directoryName             (useless, but trivial)
    - uniformResourceIdentifier (useful)
 - it would be nice if the ASN.1 compiler could generate print
   functions..., and/or even better, to-JSON functions
 - it would be nice if we had a known-OID db, including the names of the
   types they refer to in certificate extensions, otherName SANs and CSR
   attributes, then we could generate a CSR and certificate printer for
   all known options even when they are not supported by the rest of
   Heimdal
    - and we could also get friendly names for OIDs, and we could
      resolve their arc names
    - longer term, we could also stand to add some ASN.1 information
      object system functionality, just enough to make
      lib/hx509/asn1_print awesome by being able to automatically decode
      all heim_any and OCTET STRING content (better than its current
      --inner option)
2019-10-08 22:20:40 -05:00

469 lines
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/*
* Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "hx_locl.h"
static int
test_name(hx509_context context, const char *name)
{
hx509_name n;
char *s;
int ret;
ret = hx509_parse_name(context, name, &n);
if (ret)
return 1;
ret = hx509_name_to_string(n, &s);
if (ret)
return 1;
if (strcmp(s, name) != 0)
return 1;
hx509_name_free(&n);
free(s);
return 0;
}
static int
test_name_fail(hx509_context context, const char *name)
{
hx509_name n;
if (hx509_parse_name(context, name, &n) == HX509_NAME_MALFORMED)
return 0;
hx509_name_free(&n);
return 1;
}
static int
test_expand(hx509_context context, const char *name, const char *expected)
{
hx509_env env = NULL;
hx509_name n;
char *s;
int ret;
hx509_env_add(context, &env, "uid", "lha");
ret = hx509_parse_name(context, name, &n);
if (ret)
return 1;
ret = hx509_name_expand(context, n, env);
hx509_env_free(&env);
if (ret)
return 1;
ret = hx509_name_to_string(n, &s);
hx509_name_free(&n);
if (ret)
return 1;
ret = strcmp(s, expected) != 0;
free(s);
if (ret)
return 1;
return 0;
}
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"\x1d\x28\x9c\xd9\x26\x76\xa0\xcd\xc4\x9d\x4e\xf0\xae\x07\x16\xd5"
"\xbe\xaf\x57\x08\x6a\xd0\xa0\x42\x42\x42\x1e\xf4\x20\xcc\xa5\x78"
"\x82\x95\x26\x38\x8a\x47";
char certdata3[] =
"\x30\x82\x04\x43\x30\x82\x03\x2b\xa0\x03\x02\x01\x02\x02\x01\x01"
"\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x05\x05\x00\x30"
"\x7f\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x47\x42\x31\x1b"
"\x30\x19\x06\x03\x55\x04\x08\x0c\x12\x47\x72\x65\x61\x74\x65\x72"
"\x20\x4d\x61\x6e\x63\x68\x65\x73\x74\x65\x72\x31\x10\x30\x0e\x06"
"\x03\x55\x04\x07\x0c\x07\x53\x61\x6c\x66\x6f\x72\x64\x31\x1a\x30"
"\x18\x06\x03\x55\x04\x0a\x0c\x11\x43\x6f\x6d\x6f\x64\x6f\x20\x43"
"\x41\x20\x4c\x69\x6d\x69\x74\x65\x64\x31\x25\x30\x23\x06\x03\x55"
"\x04\x03\x0c\x1c\x54\x72\x75\x73\x74\x65\x64\x20\x43\x65\x72\x74"
"\x69\x66\x69\x63\x61\x74\x65\x20\x53\x65\x72\x76\x69\x63\x65\x73"
"\x30\x1e\x17\x0d\x30\x34\x30\x31\x30\x31\x30\x30\x30\x30\x30\x30"
"\x5a\x17\x0d\x32\x38\x31\x32\x33\x31\x32\x33\x35\x39\x35\x39\x5a"
"\x30\x7f\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x47\x42\x31"
"\x1b\x30\x19\x06\x03\x55\x04\x08\x0c\x12\x47\x72\x65\x61\x74\x65"
"\x72\x20\x4d\x61\x6e\x63\x68\x65\x73\x74\x65\x72\x31\x10\x30\x0e"
"\x06\x03\x55\x04\x07\x0c\x07\x53\x61\x6c\x66\x6f\x72\x64\x31\x1a"
"\x30\x18\x06\x03\x55\x04\x0a\x0c\x11\x43\x6f\x6d\x6f\x64\x6f\x20"
"\x43\x41\x20\x4c\x69\x6d\x69\x74\x65\x64\x31\x25\x30\x23\x06\x03"
"\x55\x04\x03\x0c\x1c\x54\x72\x75\x73\x74\x65\x64\x20\x43\x65\x72"
"\x74\x69\x66\x69\x63\x61\x74\x65\x20\x53\x65\x72\x76\x69\x63\x65"
"\x73\x30\x82\x01\x22\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01"
"\x01\x01\x05\x00\x03\x82\x01\x0f\x00\x30\x82\x01\x0a\x02\x82\x01"
"\x01\x00\xdf\x71\x6f\x36\x58\x53\x5a\xf2\x36\x54\x57\x80\xc4\x74"
"\x08\x20\xed\x18\x7f\x2a\x1d\xe6\x35\x9a\x1e\x25\xac\x9c\xe5\x96"
"\x7e\x72\x52\xa0\x15\x42\xdb\x59\xdd\x64\x7a\x1a\xd0\xb8\x7b\xdd"
"\x39\x15\xbc\x55\x48\xc4\xed\x3a\x00\xea\x31\x11\xba\xf2\x71\x74"
"\x1a\x67\xb8\xcf\x33\xcc\xa8\x31\xaf\xa3\xe3\xd7\x7f\xbf\x33\x2d"
"\x4c\x6a\x3c\xec\x8b\xc3\x92\xd2\x53\x77\x24\x74\x9c\x07\x6e\x70"
"\xfc\xbd\x0b\x5b\x76\xba\x5f\xf2\xff\xd7\x37\x4b\x4a\x60\x78\xf7"
"\xf0\xfa\xca\x70\xb4\xea\x59\xaa\xa3\xce\x48\x2f\xa9\xc3\xb2\x0b"
"\x7e\x17\x72\x16\x0c\xa6\x07\x0c\x1b\x38\xcf\xc9\x62\xb7\x3f\xa0"
"\x93\xa5\x87\x41\xf2\xb7\x70\x40\x77\xd8\xbe\x14\x7c\xe3\xa8\xc0"
"\x7a\x8e\xe9\x63\x6a\xd1\x0f\x9a\xc6\xd2\xf4\x8b\x3a\x14\x04\x56"
"\xd4\xed\xb8\xcc\x6e\xf5\xfb\xe2\x2c\x58\xbd\x7f\x4f\x6b\x2b\xf7"
"\x60\x24\x58\x24\xce\x26\xef\x34\x91\x3a\xd5\xe3\x81\xd0\xb2\xf0"
"\x04\x02\xd7\x5b\xb7\x3e\x92\xac\x6b\x12\x8a\xf9\xe4\x05\xb0\x3b"
"\x91\x49\x5c\xb2\xeb\x53\xea\xf8\x9f\x47\x86\xee\xbf\x95\xc0\xc0"
"\x06\x9f\xd2\x5b\x5e\x11\x1b\xf4\xc7\x04\x35\x29\xd2\x55\x5c\xe4"
"\xed\xeb\x02\x03\x01\x00\x01\xa3\x81\xc9\x30\x81\xc6\x30\x1d\x06"
"\x03\x55\x1d\x0e\x04\x16\x04\x14\xc5\x7b\x58\xbd\xed\xda\x25\x69"
"\xd2\xf7\x59\x16\xa8\xb3\x32\xc0\x7b\x27\x5b\xf4\x30\x0e\x06\x03"
"\x55\x1d\x0f\x01\x01\xff\x04\x04\x03\x02\x01\x06\x30\x0f\x06\x03"
"\x55\x1d\x13\x01\x01\xff\x04\x05\x30\x03\x01\x01\xff\x30\x81\x83"
"\x06\x03\x55\x1d\x1f\x04\x7c\x30\x7a\x30\x3c\xa0\x3a\xa0\x38\x86"
"\x36\x68\x74\x74\x70\x3a\x2f\x2f\x63\x72\x6c\x2e\x63\x6f\x6d\x6f"
"\x64\x6f\x63\x61\x2e\x63\x6f\x6d\x2f\x54\x72\x75\x73\x74\x65\x64"
"\x43\x65\x72\x74\x69\x66\x69\x63\x61\x74\x65\x53\x65\x72\x76\x69"
"\x63\x65\x73\x2e\x63\x72\x6c\x30\x3a\xa0\x38\xa0\x36\x86\x34\x68"
"\x74\x74\x70\x3a\x2f\x2f\x63\x72\x6c\x2e\x63\x6f\x6d\x6f\x64\x6f"
"\x2e\x6e\x65\x74\x2f\x54\x72\x75\x73\x74\x65\x64\x43\x65\x72\x74"
"\x69\x66\x69\x63\x61\x74\x65\x53\x65\x72\x76\x69\x63\x65\x73\x2e"
"\x63\x72\x6c\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x05"
"\x05\x00\x03\x82\x01\x01\x00\xc8\x93\x81\x3b\x89\xb4\xaf\xb8\x84"
"\x12\x4c\x8d\xd2\xf0\xdb\x70\xba\x57\x86\x15\x34\x10\xb9\x2f\x7f"
"\x1e\xb0\xa8\x89\x60\xa1\x8a\xc2\x77\x0c\x50\x4a\x9b\x00\x8b\xd8"
"\x8b\xf4\x41\xe2\xd0\x83\x8a\x4a\x1c\x14\x06\xb0\xa3\x68\x05\x70"
"\x31\x30\xa7\x53\x9b\x0e\xe9\x4a\xa0\x58\x69\x67\x0e\xae\x9d\xf6"
"\xa5\x2c\x41\xbf\x3c\x06\x6b\xe4\x59\xcc\x6d\x10\xf1\x96\x6f\x1f"
"\xdf\xf4\x04\x02\xa4\x9f\x45\x3e\xc8\xd8\xfa\x36\x46\x44\x50\x3f"
"\x82\x97\x91\x1f\x28\xdb\x18\x11\x8c\x2a\xe4\x65\x83\x57\x12\x12"
"\x8c\x17\x3f\x94\x36\xfe\x5d\xb0\xc0\x04\x77\x13\xb8\xf4\x15\xd5"
"\x3f\x38\xcc\x94\x3a\x55\xd0\xac\x98\xf5\xba\x00\x5f\xe0\x86\x19"
"\x81\x78\x2f\x28\xc0\x7e\xd3\xcc\x42\x0a\xf5\xae\x50\xa0\xd1\x3e"
"\xc6\xa1\x71\xec\x3f\xa0\x20\x8c\x66\x3a\x89\xb4\x8e\xd4\xd8\xb1"
"\x4d\x25\x47\xee\x2f\x88\xc8\xb5\xe1\x05\x45\xc0\xbe\x14\x71\xde"
"\x7a\xfd\x8e\x7b\x7d\x4d\x08\x96\xa5\x12\x73\xf0\x2d\xca\x37\x27"
"\x74\x12\x27\x4c\xcb\xb6\x97\xe9\xd9\xae\x08\x6d\x5a\x39\x40\xdd"
"\x05\x47\x75\x6a\x5a\x21\xb3\xa3\x18\xcf\x4e\xf7\x2e\x57\xb7\x98"
"\x70\x5e\xc8\xc4\x78\xb0\x62";
static int
compare_subject(hx509_cert c1, hx509_cert c2, int *l)
{
hx509_name n1, n2;
int ret;
ret = hx509_cert_get_subject(c1, &n1);
if (ret) return 1;
ret = hx509_cert_get_subject(c2, &n2);
if (ret) return 1;
*l = hx509_name_cmp(n1, n2);
hx509_name_free(&n1);
hx509_name_free(&n2);
return 0;
}
static int
test_compare(hx509_context context)
{
int ret;
hx509_cert c1, c2, c3;
int l0, l1, l2, l3;
/* check transative properties of name compare function */
c1 = hx509_cert_init_data(context, certdata1, sizeof(certdata1) - 1, NULL);
if (c1 == NULL) return 1;
c2 = hx509_cert_init_data(context, certdata2, sizeof(certdata2) - 1, NULL);
if (c2 == NULL) return 1;
c3 = hx509_cert_init_data(context, certdata3, sizeof(certdata3) - 1, NULL);
if (c3 == NULL) return 1;
ret = compare_subject(c1, c1, &l0);
if (ret) return 1;
ret = compare_subject(c1, c2, &l1);
if (ret) return 1;
ret = compare_subject(c1, c3, &l2);
if (ret) return 1;
ret = compare_subject(c2, c3, &l3);
if (ret) return 1;
if (l0 != 0) return 1;
if (l2 < l1) return 1;
if (l3 < l2) return 1;
if (l3 < l1) return 1;
hx509_cert_free(c1);
hx509_cert_free(c2);
hx509_cert_free(c3);
return 0;
}
static int
test_pkinit_san(hx509_context context, const char *p, const char *realm, ...)
{
KRB5PrincipalName kn;
GeneralName gn;
va_list ap;
size_t i, sz;
char *round_trip;
int ret;
memset(&kn, 0, sizeof(kn));
memset(&gn, 0, sizeof(gn));
ret = _hx509_make_pkinit_san(context, p, &gn.u.otherName.value);
if (ret == 0)
ret = decode_KRB5PrincipalName(gn.u.otherName.value.data,
gn.u.otherName.value.length, &kn, &sz);
if (ret)
return ret;
if (strcmp(realm, kn.realm))
return ret;
va_start(ap, realm);
for (i = 0; i < kn.principalName.name_string.len; i++) {
const char *s = va_arg(ap, const char *);
if (s == NULL || strcmp(kn.principalName.name_string.val[i], s))
return 1;
}
if (va_arg(ap, const char *) != NULL)
return 1;
va_end(ap);
gn.element = choice_GeneralName_otherName;
gn.u.otherName.type_id.length = 0;
gn.u.otherName.type_id.components = 0;
ret = der_copy_oid(&asn1_oid_id_pkinit_san, &gn.u.otherName.type_id);
if (ret == 0)
ret = hx509_general_name_unparse(&gn, &round_trip);
if (ret)
return 1;
if (strncmp(round_trip, "otherName: 1.3.6.1.5.2.2 ",
sizeof("otherName: 1.3.6.1.5.2.2 ") - 1))
return 1;
if (ret || strcmp(round_trip + sizeof("otherName: 1.3.6.1.5.2.2 ") - 1, p))
return 1;
free_KRB5PrincipalName(&kn);
free_GeneralName(&gn);
free(round_trip);
return 0;
}
static int
test_pkinit_san_fail(hx509_context context, const char *p)
{
heim_octet_string os;
KRB5PrincipalName kn;
int ret;
memset(&kn, 0, sizeof(kn));
ret = _hx509_make_pkinit_san(context, p, &os);
if (ret == 0) {
free(os.data);
return 1;
}
return 0;
}
int
main(int argc, char **argv)
{
hx509_context context;
int ret = 0;
ret = hx509_context_init(&context);
if (ret)
errx(1, "hx509_context_init failed with %d", ret);
ret += test_name(context, "CN=foo,C=SE");
ret += test_name(context, "CN=foo,CN=kaka,CN=FOO,DC=ad1,C=SE");
ret += test_name(context, "1.2.3.4=foo,C=SE");
ret += test_name_fail(context, "=");
ret += test_name_fail(context, "CN=foo,=foo");
ret += test_name_fail(context, "CN=foo,really-unknown-type=foo");
ret += test_expand(context, "UID=${uid},C=SE", "UID=lha,C=SE");
ret += test_expand(context, "UID=foo${uid},C=SE", "UID=foolha,C=SE");
ret += test_expand(context, "UID=${uid}bar,C=SE", "UID=lhabar,C=SE");
ret += test_expand(context, "UID=f${uid}b,C=SE", "UID=flhab,C=SE");
ret += test_expand(context, "UID=${uid}${uid},C=SE", "UID=lhalha,C=SE");
ret += test_expand(context, "UID=${uid}{uid},C=SE", "UID=lha{uid},C=SE");
ret += test_compare(context);
ret += test_pkinit_san(context, "foo@BAR.H5L.SE",
"BAR.H5L.SE", "foo", NULL);
ret += test_pkinit_san(context, "foo\\ bar@BAR.H5L.SE",
"BAR.H5L.SE", "foo bar", NULL);
ret += test_pkinit_san(context, "foo\\/bar@BAR.H5L.SE",
"BAR.H5L.SE", "foo/bar", NULL);
ret += test_pkinit_san(context, "foo/bar@BAR.H5L.SE",
"BAR.H5L.SE", "foo", "bar", NULL);
ret += test_pkinit_san(context, "foo\\tbar@BAR.H5L.SE",
"BAR.H5L.SE", "foo\tbar", NULL);
ret += test_pkinit_san(context, "foo\\nbar@BAR.H5L.SE",
"BAR.H5L.SE", "foo\nbar", NULL);
ret += test_pkinit_san(context, "foo@\\ BAR.H5L.SE",
" BAR.H5L.SE", "foo", NULL);
ret += test_pkinit_san(context, "foo@\\nBAR.H5L.SE",
"\nBAR.H5L.SE", "foo", NULL);
ret += test_pkinit_san_fail(context, "foo\\0bar@BAR.H5L.SE");
hx509_context_free(&context);
return !!ret;
}
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