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| Current File : //usr/src/crypto/heimdal/lib/gssapi/test_context.c |
/*
* Copyright (c) 2006 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 KTH 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 KTH AND ITS 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 KTH OR ITS 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 "krb5/gsskrb5_locl.h"
#include <err.h>
#include <getarg.h>
#include "test_common.h"
RCSID("$Id: test_context.c 20075 2007-01-31 06:05:19Z lha $");
static char *type_string;
static char *mech_string;
static char *ret_mech_string;
static int dns_canon_flag = -1;
static int mutual_auth_flag = 0;
static int dce_style_flag = 0;
static int wrapunwrap_flag = 0;
static int getverifymic_flag = 0;
static int deleg_flag = 0;
static int version_flag = 0;
static int verbose_flag = 0;
static int help_flag = 0;
static struct {
const char *name;
gss_OID *oid;
} o2n[] = {
{ "krb5", &GSS_KRB5_MECHANISM },
{ "spnego", &GSS_SPNEGO_MECHANISM },
{ "ntlm", &GSS_NTLM_MECHANISM },
{ "sasl-digest-md5", &GSS_SASL_DIGEST_MD5_MECHANISM }
};
static gss_OID
string_to_oid(const char *name)
{
int i;
for (i = 0; i < sizeof(o2n)/sizeof(o2n[0]); i++)
if (strcasecmp(name, o2n[i].name) == 0)
return *o2n[i].oid;
errx(1, "name %s not unknown", name);
}
static const char *
oid_to_string(const gss_OID oid)
{
int i;
for (i = 0; i < sizeof(o2n)/sizeof(o2n[0]); i++)
if (gss_oid_equal(oid, *o2n[i].oid))
return o2n[i].name;
return "unknown oid";
}
static void
loop(gss_OID mechoid,
gss_OID nameoid, const char *target,
gss_cred_id_t init_cred,
gss_ctx_id_t *sctx, gss_ctx_id_t *cctx,
gss_OID *actual_mech,
gss_cred_id_t *deleg_cred)
{
int server_done = 0, client_done = 0;
OM_uint32 maj_stat, min_stat;
gss_name_t gss_target_name;
gss_buffer_desc input_token, output_token;
OM_uint32 flags = 0, ret_cflags, ret_sflags;
gss_OID actual_mech_client;
gss_OID actual_mech_server;
*actual_mech = GSS_C_NO_OID;
flags |= GSS_C_INTEG_FLAG;
flags |= GSS_C_CONF_FLAG;
if (mutual_auth_flag)
flags |= GSS_C_MUTUAL_FLAG;
if (dce_style_flag)
flags |= GSS_C_DCE_STYLE;
if (deleg_flag)
flags |= GSS_C_DELEG_FLAG;
input_token.value = rk_UNCONST(target);
input_token.length = strlen(target);
maj_stat = gss_import_name(&min_stat,
&input_token,
nameoid,
&gss_target_name);
if (GSS_ERROR(maj_stat))
err(1, "import name creds failed with: %d", maj_stat);
input_token.length = 0;
input_token.value = NULL;
while (!server_done || !client_done) {
maj_stat = gss_init_sec_context(&min_stat,
init_cred,
cctx,
gss_target_name,
mechoid,
flags,
0,
NULL,
&input_token,
&actual_mech_client,
&output_token,
&ret_cflags,
NULL);
if (GSS_ERROR(maj_stat))
errx(1, "init_sec_context: %s",
gssapi_err(maj_stat, min_stat, mechoid));
if (maj_stat & GSS_S_CONTINUE_NEEDED)
;
else
client_done = 1;
if (client_done && server_done)
break;
if (input_token.length != 0)
gss_release_buffer(&min_stat, &input_token);
maj_stat = gss_accept_sec_context(&min_stat,
sctx,
GSS_C_NO_CREDENTIAL,
&output_token,
GSS_C_NO_CHANNEL_BINDINGS,
NULL,
&actual_mech_server,
&input_token,
&ret_sflags,
NULL,
deleg_cred);
if (GSS_ERROR(maj_stat))
errx(1, "accept_sec_context: %s",
gssapi_err(maj_stat, min_stat, actual_mech_server));
if (verbose_flag)
printf("%.*s", (int)input_token.length, (char *)input_token.value);
if (output_token.length != 0)
gss_release_buffer(&min_stat, &output_token);
if (maj_stat & GSS_S_CONTINUE_NEEDED)
;
else
server_done = 1;
}
if (output_token.length != 0)
gss_release_buffer(&min_stat, &output_token);
if (input_token.length != 0)
gss_release_buffer(&min_stat, &input_token);
gss_release_name(&min_stat, &gss_target_name);
if (gss_oid_equal(actual_mech_server, actual_mech_client) == 0)
errx(1, "mech mismatch");
*actual_mech = actual_mech_server;
}
static void
wrapunwrap(gss_ctx_id_t cctx, gss_ctx_id_t sctx, gss_OID mechoid)
{
gss_buffer_desc input_token, output_token, output_token2;
OM_uint32 min_stat, maj_stat;
int32_t flags = 0;
gss_qop_t qop_state;
int conf_state;
input_token.value = "foo";
input_token.length = 3;
maj_stat = gss_wrap(&min_stat, cctx, flags, 0, &input_token,
&conf_state, &output_token);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_wrap failed: %s",
gssapi_err(maj_stat, min_stat, mechoid));
maj_stat = gss_unwrap(&min_stat, sctx, &output_token,
&output_token2, &conf_state, &qop_state);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_unwrap failed: %s",
gssapi_err(maj_stat, min_stat, mechoid));
}
static void
getverifymic(gss_ctx_id_t cctx, gss_ctx_id_t sctx, gss_OID mechoid)
{
gss_buffer_desc input_token, output_token;
OM_uint32 min_stat, maj_stat;
gss_qop_t qop_state;
input_token.value = "bar";
input_token.length = 3;
maj_stat = gss_get_mic(&min_stat, cctx, 0, &input_token,
&output_token);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_get_mic failed: %s",
gssapi_err(maj_stat, min_stat, mechoid));
maj_stat = gss_verify_mic(&min_stat, sctx, &input_token,
&output_token, &qop_state);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_verify_mic failed: %s",
gssapi_err(maj_stat, min_stat, mechoid));
}
/*
*
*/
static struct getargs args[] = {
{"name-type",0, arg_string, &type_string, "type of name", NULL },
{"mech-type",0, arg_string, &mech_string, "type of mech", NULL },
{"ret-mech-type",0, arg_string, &ret_mech_string,
"type of return mech", NULL },
{"dns-canonicalize",0,arg_negative_flag, &dns_canon_flag,
"use dns to canonicalize", NULL },
{"mutual-auth",0, arg_flag, &mutual_auth_flag,"mutual auth", NULL },
{"dce-style",0, arg_flag, &dce_style_flag, "dce-style", NULL },
{"wrapunwrap",0, arg_flag, &wrapunwrap_flag, "wrap/unwrap", NULL },
{"getverifymic",0, arg_flag, &getverifymic_flag,
"get and verify mic", NULL },
{"delegate",0, arg_flag, &deleg_flag, "delegate credential", NULL },
{"version", 0, arg_flag, &version_flag, "print version", NULL },
{"verbose", 'v', arg_flag, &verbose_flag, "verbose", NULL },
{"help", 0, arg_flag, &help_flag, NULL, NULL }
};
static void
usage (int ret)
{
arg_printusage (args, sizeof(args)/sizeof(*args),
NULL, "service@host");
exit (ret);
}
int
main(int argc, char **argv)
{
int optind = 0;
OM_uint32 min_stat, maj_stat;
gss_ctx_id_t cctx, sctx;
void *ctx;
gss_OID nameoid, mechoid, actual_mech;
gss_cred_id_t deleg_cred = GSS_C_NO_CREDENTIAL;
setprogname(argv[0]);
cctx = sctx = GSS_C_NO_CONTEXT;
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
usage(1);
if (help_flag)
usage (0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= optind;
argv += optind;
if (argc != 1)
usage(1);
if (dns_canon_flag != -1)
gsskrb5_set_dns_canonicalize(dns_canon_flag);
if (type_string == NULL)
nameoid = GSS_C_NT_HOSTBASED_SERVICE;
else if (strcmp(type_string, "hostbased-service") == 0)
nameoid = GSS_C_NT_HOSTBASED_SERVICE;
else if (strcmp(type_string, "krb5-principal-name") == 0)
nameoid = GSS_KRB5_NT_PRINCIPAL_NAME;
else
errx(1, "%s not suppported", type_string);
if (mech_string == NULL)
mechoid = GSS_KRB5_MECHANISM;
else
mechoid = string_to_oid(mech_string);
loop(mechoid, nameoid, argv[0], GSS_C_NO_CREDENTIAL,
&sctx, &cctx, &actual_mech, &deleg_cred);
if (verbose_flag)
printf("resulting mech: %s\n", oid_to_string(actual_mech));
if (ret_mech_string) {
gss_OID retoid;
retoid = string_to_oid(ret_mech_string);
if (gss_oid_equal(retoid, actual_mech) == 0)
errx(1, "actual_mech mech is not the expected type %s",
ret_mech_string);
}
/* XXX should be actual_mech */
if (gss_oid_equal(mechoid, GSS_KRB5_MECHANISM)) {
krb5_context context;
time_t time, skew;
gss_buffer_desc authz_data;
gss_buffer_desc in, out1, out2;
krb5_keyblock *keyblock, *keyblock2;
krb5_timestamp now;
krb5_error_code ret;
ret = krb5_init_context(&context);
if (ret)
errx(1, "krb5_init_context");
ret = krb5_timeofday(context, &now);
if (ret)
errx(1, "krb5_timeofday failed");
/* client */
maj_stat = gss_krb5_export_lucid_sec_context(&min_stat,
&cctx,
1, /* version */
&ctx);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_krb5_export_lucid_sec_context failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
maj_stat = gss_krb5_free_lucid_sec_context(&maj_stat, ctx);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_krb5_free_lucid_sec_context failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
/* server */
maj_stat = gss_krb5_export_lucid_sec_context(&min_stat,
&sctx,
1, /* version */
&ctx);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_krb5_export_lucid_sec_context failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
maj_stat = gss_krb5_free_lucid_sec_context(&min_stat, ctx);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_krb5_free_lucid_sec_context failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
maj_stat = gsskrb5_extract_authtime_from_sec_context(&min_stat,
sctx,
&time);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gsskrb5_extract_authtime_from_sec_context failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
skew = abs(time - now);
if (skew > krb5_get_max_time_skew(context)) {
errx(1, "gsskrb5_extract_authtime_from_sec_context failed: "
"time skew too great %llu > %llu",
(unsigned long long)skew,
(unsigned long long)krb5_get_max_time_skew(context));
}
maj_stat = gsskrb5_extract_service_keyblock(&min_stat,
sctx,
&keyblock);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gsskrb5_export_service_keyblock failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
krb5_free_keyblock(context, keyblock);
maj_stat = gsskrb5_get_subkey(&min_stat,
sctx,
&keyblock);
if (maj_stat != GSS_S_COMPLETE
&& (!(maj_stat == GSS_S_FAILURE && min_stat == GSS_KRB5_S_KG_NO_SUBKEY)))
errx(1, "gsskrb5_get_subkey server failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
if (maj_stat != GSS_S_COMPLETE)
keyblock = NULL;
maj_stat = gsskrb5_get_subkey(&min_stat,
cctx,
&keyblock2);
if (maj_stat != GSS_S_COMPLETE
&& (!(maj_stat == GSS_S_FAILURE && min_stat == GSS_KRB5_S_KG_NO_SUBKEY)))
errx(1, "gsskrb5_get_subkey client failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
if (maj_stat != GSS_S_COMPLETE)
keyblock2 = NULL;
if (keyblock || keyblock2) {
if (keyblock == NULL)
errx(1, "server missing token keyblock");
if (keyblock2 == NULL)
errx(1, "client missing token keyblock");
if (keyblock->keytype != keyblock2->keytype)
errx(1, "enctype mismatch");
if (keyblock->keyvalue.length != keyblock2->keyvalue.length)
errx(1, "key length mismatch");
if (memcmp(keyblock->keyvalue.data, keyblock2->keyvalue.data,
keyblock2->keyvalue.length) != 0)
errx(1, "key data mismatch");
}
if (keyblock)
krb5_free_keyblock(context, keyblock);
if (keyblock2)
krb5_free_keyblock(context, keyblock2);
maj_stat = gsskrb5_get_initiator_subkey(&min_stat,
sctx,
&keyblock);
if (maj_stat != GSS_S_COMPLETE
&& (!(maj_stat == GSS_S_FAILURE && min_stat == GSS_KRB5_S_KG_NO_SUBKEY)))
errx(1, "gsskrb5_get_initiator_subkey failed: %s",
gssapi_err(maj_stat, min_stat, actual_mech));
if (maj_stat == GSS_S_COMPLETE)
krb5_free_keyblock(context, keyblock);
maj_stat = gsskrb5_extract_authz_data_from_sec_context(&min_stat,
sctx,
128,
&authz_data);
if (maj_stat == GSS_S_COMPLETE)
gss_release_buffer(&min_stat, &authz_data);
krb5_free_context(context);
memset(&out1, 0, sizeof(out1));
memset(&out2, 0, sizeof(out2));
in.value = "foo";
in.length = 3;
gss_pseudo_random(&min_stat, sctx, GSS_C_PRF_KEY_FULL, &in,
100, &out1);
gss_pseudo_random(&min_stat, cctx, GSS_C_PRF_KEY_FULL, &in,
100, &out2);
if (out1.length != out2.length)
errx(1, "prf len mismatch");
if (memcmp(out1.value, out2.value, out1.length) != 0)
errx(1, "prf data mismatch");
gss_release_buffer(&min_stat, &out1);
gss_pseudo_random(&min_stat, sctx, GSS_C_PRF_KEY_FULL, &in,
100, &out1);
if (out1.length != out2.length)
errx(1, "prf len mismatch");
if (memcmp(out1.value, out2.value, out1.length) != 0)
errx(1, "prf data mismatch");
gss_release_buffer(&min_stat, &out1);
gss_release_buffer(&min_stat, &out2);
in.value = "bar";
in.length = 3;
gss_pseudo_random(&min_stat, sctx, GSS_C_PRF_KEY_PARTIAL, &in,
100, &out1);
gss_pseudo_random(&min_stat, cctx, GSS_C_PRF_KEY_PARTIAL, &in,
100, &out2);
if (out1.length != out2.length)
errx(1, "prf len mismatch");
if (memcmp(out1.value, out2.value, out1.length) != 0)
errx(1, "prf data mismatch");
gss_release_buffer(&min_stat, &out1);
gss_release_buffer(&min_stat, &out2);
wrapunwrap_flag = 1;
getverifymic_flag = 1;
}
if (wrapunwrap_flag) {
wrapunwrap(cctx, sctx, actual_mech);
wrapunwrap(cctx, sctx, actual_mech);
wrapunwrap(sctx, cctx, actual_mech);
wrapunwrap(sctx, cctx, actual_mech);
}
if (getverifymic_flag) {
getverifymic(cctx, sctx, actual_mech);
getverifymic(cctx, sctx, actual_mech);
getverifymic(sctx, cctx, actual_mech);
getverifymic(sctx, cctx, actual_mech);
}
gss_delete_sec_context(&min_stat, &cctx, NULL);
gss_delete_sec_context(&min_stat, &sctx, NULL);
if (deleg_cred != GSS_C_NO_CREDENTIAL) {
loop(mechoid, nameoid, argv[0], deleg_cred, &cctx, &sctx, &actual_mech, NULL);
gss_delete_sec_context(&min_stat, &cctx, NULL);
gss_delete_sec_context(&min_stat, &sctx, NULL);
}
return 0;
}