687 lines
21 KiB
C
687 lines
21 KiB
C
/*
|
|
* Copyright (c) 1997 - 2005 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 "gsskrb5_locl.h"
|
|
|
|
/*
|
|
* Find an element in a cred store. Returns GSS_S_COMPLETE if the cred store
|
|
* is absent or well formed, irrespective of whether the element exists. The
|
|
* caller should check for *value != NULL before using; values are typically
|
|
* optional, hence this behavior. (The caller should validate the return
|
|
* value at least once though, to check it is well-formed.)
|
|
*/
|
|
OM_uint32
|
|
__gsskrb5_cred_store_find(OM_uint32 *minor_status,
|
|
gss_const_key_value_set_t cred_store,
|
|
const char *key,
|
|
const char **value)
|
|
{
|
|
size_t i;
|
|
|
|
*value = NULL;
|
|
|
|
if (cred_store == GSS_C_NO_CRED_STORE)
|
|
return GSS_S_COMPLETE;
|
|
else if (cred_store->count == 0) {
|
|
*minor_status = GSS_KRB5_S_G_BAD_USAGE;
|
|
return GSS_S_NO_CRED;
|
|
}
|
|
|
|
for (i = 0; i < cred_store->count; i++) {
|
|
if (strcmp(key, cred_store->elements[i].key) == 0) {
|
|
if (*value) {
|
|
*value = NULL;
|
|
*minor_status = GSS_KRB5_S_G_BAD_USAGE;
|
|
return GSS_S_DUPLICATE_ELEMENT;
|
|
}
|
|
*value = cred_store->elements[i].value;
|
|
}
|
|
}
|
|
|
|
return GSS_S_COMPLETE;
|
|
}
|
|
|
|
OM_uint32
|
|
__gsskrb5_ccache_lifetime(OM_uint32 *minor_status,
|
|
krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_principal principal,
|
|
OM_uint32 *lifetime)
|
|
{
|
|
krb5_error_code kret;
|
|
time_t left;
|
|
|
|
kret = krb5_cc_get_lifetime(context, id, &left);
|
|
if (kret) {
|
|
*minor_status = kret;
|
|
return GSS_S_FAILURE;
|
|
}
|
|
|
|
*lifetime = left;
|
|
|
|
return GSS_S_COMPLETE;
|
|
}
|
|
|
|
|
|
|
|
|
|
static krb5_error_code
|
|
get_system_keytab(krb5_context context,
|
|
gss_const_key_value_set_t cred_store,
|
|
krb5_keytab *keytab)
|
|
{
|
|
krb5_error_code kret;
|
|
const char *cs_ktname;
|
|
OM_uint32 tmp;
|
|
|
|
__gsskrb5_cred_store_find(&tmp, cred_store, "keytab", &cs_ktname);
|
|
|
|
HEIMDAL_MUTEX_lock(&gssapi_keytab_mutex);
|
|
|
|
if (cs_ktname)
|
|
kret = krb5_kt_resolve(context, cs_ktname, keytab);
|
|
else if (_gsskrb5_keytab != NULL) {
|
|
char *name = NULL;
|
|
|
|
kret = krb5_kt_get_full_name(context, _gsskrb5_keytab, &name);
|
|
if (kret == 0) {
|
|
kret = krb5_kt_resolve(context, name, keytab);
|
|
krb5_xfree(name);
|
|
}
|
|
} else
|
|
kret = krb5_kt_default(context, keytab);
|
|
|
|
HEIMDAL_MUTEX_unlock(&gssapi_keytab_mutex);
|
|
|
|
return (kret);
|
|
}
|
|
|
|
static krb5_error_code
|
|
get_client_keytab(krb5_context context,
|
|
gss_const_key_value_set_t cred_store,
|
|
krb5_const_principal principal,
|
|
krb5_keytab *keytab)
|
|
{
|
|
krb5_error_code ret;
|
|
const char *cs_ktname;
|
|
OM_uint32 tmp;
|
|
|
|
__gsskrb5_cred_store_find(&tmp, cred_store, "client_keytab", &cs_ktname);
|
|
|
|
if (cs_ktname)
|
|
ret = krb5_kt_resolve(context, cs_ktname, keytab);
|
|
else {
|
|
char *name = NULL;
|
|
ret = _krb5_kt_client_default_name(context, &name);
|
|
if (ret == 0)
|
|
ret = krb5_kt_resolve(context, name, keytab);
|
|
krb5_xfree(name);
|
|
}
|
|
|
|
if (ret == 0 && principal) {
|
|
krb5_keytab_entry entry;
|
|
|
|
ret = krb5_kt_get_entry(context, *keytab, principal,
|
|
0, 0, &entry);
|
|
if (ret == 0)
|
|
krb5_kt_free_entry(context, &entry);
|
|
}
|
|
|
|
if (ret) {
|
|
if (*keytab) {
|
|
krb5_kt_close(context, *keytab);
|
|
*keytab = NULL;
|
|
}
|
|
|
|
ret = get_system_keytab(context, GSS_C_NO_CRED_STORE, keytab);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static krb5_boolean
|
|
is_valid_password_cred_store(gss_const_key_value_set_t cred_store)
|
|
{
|
|
size_t i;
|
|
|
|
if (cred_store == GSS_C_NO_CRED_STORE)
|
|
return TRUE;
|
|
|
|
/* XXX don't check keytab, someday we will allow password+acceptor creds */
|
|
for (i = 0; i < cred_store->count; i++) {
|
|
if (strcmp(cred_store->elements[i].key, "ccache") == 0 ||
|
|
strcmp(cred_store->elements[i].key, "client_keytab") == 0)
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* This function produces a cred with a MEMORY ccache containing a TGT
|
|
* acquired with a password.
|
|
*/
|
|
static OM_uint32
|
|
acquire_cred_with_password(OM_uint32 *minor_status,
|
|
krb5_context context,
|
|
const char *password,
|
|
OM_uint32 time_req,
|
|
gss_OID_set desired_mechs,
|
|
gss_cred_usage_t cred_usage,
|
|
gss_const_key_value_set_t cred_store,
|
|
gsskrb5_cred handle)
|
|
{
|
|
OM_uint32 ret = GSS_S_FAILURE;
|
|
krb5_creds cred;
|
|
krb5_init_creds_context ctx = NULL;
|
|
krb5_get_init_creds_opt *opt = NULL;
|
|
krb5_ccache ccache = NULL;
|
|
krb5_error_code kret;
|
|
time_t now;
|
|
OM_uint32 left;
|
|
const char *realm;
|
|
|
|
if (!is_valid_password_cred_store(cred_store)) {
|
|
*minor_status = GSS_KRB5_S_G_BAD_PASSWORD_CRED_STORE;
|
|
return GSS_S_NO_CRED;
|
|
}
|
|
|
|
if (cred_usage == GSS_C_ACCEPT) {
|
|
/*
|
|
* TODO: Here we should eventually support user2user (when we get
|
|
* support for that via an extension to the mechanism
|
|
* allowing for more than two security context tokens),
|
|
* and/or new unique MEMORY keytabs (we have MEMORY keytab
|
|
* support, but we don't have a keytab equivalent of
|
|
* krb5_cc_new_unique()). Either way, for now we can't
|
|
* support this.
|
|
*/
|
|
*minor_status = ENOTSUP; /* XXX Better error? */
|
|
return GSS_S_FAILURE;
|
|
}
|
|
|
|
memset(&cred, 0, sizeof(cred));
|
|
|
|
if (handle->principal == NULL) {
|
|
kret = krb5_get_default_principal(context, &handle->principal);
|
|
if (kret)
|
|
goto end;
|
|
}
|
|
realm = krb5_principal_get_realm(context, handle->principal);
|
|
|
|
kret = krb5_get_init_creds_opt_alloc(context, &opt);
|
|
if (kret == 0) {
|
|
krb5_get_init_creds_opt_set_default_flags(context, "gss_krb5", realm,
|
|
opt);
|
|
kret = krb5_init_creds_init(context, handle->principal, NULL, NULL, 0,
|
|
opt, &ctx);
|
|
}
|
|
if (kret == 0)
|
|
kret = _krb5_init_creds_set_fast_anon_pkinit_optimistic(context, ctx);
|
|
if (kret == 0)
|
|
kret = krb5_init_creds_set_password(context, ctx, password);
|
|
|
|
/*
|
|
* Get the current time before the AS exchange so we don't
|
|
* accidentally end up returning a value that puts advertised
|
|
* expiration past the real expiration.
|
|
*
|
|
* We need to do this because krb5_cc_get_lifetime() returns a
|
|
* relative time that we need to add to the current time. We ought
|
|
* to have a version of krb5_cc_get_lifetime() that returns absolute
|
|
* time...
|
|
*/
|
|
krb5_timeofday(context, &now);
|
|
|
|
if (kret == 0)
|
|
kret = krb5_init_creds_get(context, ctx);
|
|
if (kret == 0)
|
|
kret = krb5_init_creds_get_creds(context, ctx, &cred);
|
|
if (kret == 0)
|
|
kret = krb5_cc_new_unique(context, krb5_cc_type_memory, NULL, &ccache);
|
|
if (kret == 0)
|
|
kret = krb5_cc_initialize(context, ccache, cred.client);
|
|
if (kret == 0)
|
|
kret = krb5_init_creds_store(context, ctx, ccache);
|
|
if (kret == 0)
|
|
kret = krb5_cc_store_cred(context, ccache, &cred);
|
|
if (kret)
|
|
goto end;
|
|
|
|
handle->cred_flags |= GSS_CF_DESTROY_CRED_ON_RELEASE;
|
|
|
|
ret = __gsskrb5_ccache_lifetime(minor_status, context, ccache,
|
|
handle->principal, &left);
|
|
if (ret != GSS_S_COMPLETE)
|
|
goto end;
|
|
handle->endtime = now + left;
|
|
handle->ccache = ccache;
|
|
ccache = NULL;
|
|
ret = GSS_S_COMPLETE;
|
|
|
|
end:
|
|
krb5_get_init_creds_opt_free(context, opt);
|
|
if (ctx)
|
|
krb5_init_creds_free(context, ctx);
|
|
if (ccache != NULL)
|
|
krb5_cc_destroy(context, ccache);
|
|
if (cred.client != NULL)
|
|
krb5_free_cred_contents(context, &cred);
|
|
if (ret != GSS_S_COMPLETE)
|
|
*minor_status = kret;
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Acquires an initiator credential from a ccache or using a keytab.
|
|
*/
|
|
static OM_uint32
|
|
acquire_initiator_cred(OM_uint32 *minor_status,
|
|
krb5_context context,
|
|
OM_uint32 time_req,
|
|
gss_OID_set desired_mechs,
|
|
gss_cred_usage_t cred_usage,
|
|
gss_const_key_value_set_t cred_store,
|
|
gsskrb5_cred handle)
|
|
{
|
|
OM_uint32 ret;
|
|
krb5_creds cred;
|
|
krb5_get_init_creds_opt *opt;
|
|
krb5_principal def_princ = NULL;
|
|
krb5_ccache def_ccache = NULL;
|
|
krb5_ccache ccache = NULL; /* we may store into this ccache */
|
|
krb5_keytab keytab = NULL;
|
|
krb5_error_code kret = 0;
|
|
OM_uint32 left;
|
|
const char *cs_ccache_name;
|
|
time_t lifetime = 0;
|
|
time_t now;
|
|
|
|
memset(&cred, 0, sizeof(cred));
|
|
|
|
ret = __gsskrb5_cred_store_find(minor_status, cred_store,
|
|
"ccache", &cs_ccache_name);
|
|
if (GSS_ERROR(ret))
|
|
return ret;
|
|
|
|
ret = GSS_S_FAILURE;
|
|
|
|
/*
|
|
* Get current time early so we can set handle->endtime to a value that
|
|
* cannot accidentally be past the real endtime. We need a variant of
|
|
* krb5_cc_get_lifetime() that returns absolute endtime.
|
|
*/
|
|
krb5_timeofday(context, &now);
|
|
|
|
/*
|
|
* First look for a ccache that has the desired_name (which may be
|
|
* the default credential name), unless a specific credential cache
|
|
* was included in cred_store.
|
|
*
|
|
* If we don't have an unexpired credential, acquire one with a
|
|
* keytab.
|
|
*
|
|
* If we acquire one with a keytab, save it in the ccache we found
|
|
* with the expired credential, if any.
|
|
*
|
|
* If we don't have any such ccache, then use a MEMORY ccache.
|
|
*/
|
|
|
|
if (handle->principal != NULL && cs_ccache_name == NULL) {
|
|
/*
|
|
* Not default credential case. See if we can find a ccache in
|
|
* the cccol for the desired_name.
|
|
*/
|
|
kret = krb5_cc_cache_match(context,
|
|
handle->principal,
|
|
&ccache);
|
|
if (kret == 0) {
|
|
kret = krb5_cc_get_lifetime(context, ccache, &lifetime);
|
|
if (kret == 0) {
|
|
if (lifetime > 0)
|
|
goto found;
|
|
else
|
|
goto try_keytab;
|
|
}
|
|
}
|
|
/*
|
|
* Fall through. We shouldn't find this in the default ccache
|
|
* either, but we'll give it a try, then we'll try using a keytab.
|
|
*/
|
|
}
|
|
|
|
/*
|
|
* Either desired_name was GSS_C_NO_NAME (default cred) or
|
|
* krb5_cc_cache_match() failed (or found expired).
|
|
*/
|
|
if (cs_ccache_name)
|
|
kret = krb5_cc_resolve(context, cs_ccache_name, &def_ccache);
|
|
else
|
|
kret = krb5_cc_default(context, &def_ccache);
|
|
if (kret != 0)
|
|
goto try_keytab;
|
|
kret = krb5_cc_get_lifetime(context, def_ccache, &lifetime);
|
|
if (kret != 0)
|
|
lifetime = 0;
|
|
kret = krb5_cc_get_principal(context, def_ccache, &def_princ);
|
|
if (kret != 0)
|
|
goto try_keytab;
|
|
/*
|
|
* Have a default ccache; see if it matches desired_name.
|
|
*/
|
|
if (handle->principal == NULL ||
|
|
krb5_principal_compare(context, handle->principal,
|
|
def_princ) == TRUE) {
|
|
/*
|
|
* It matches.
|
|
*
|
|
* If we end up trying a keytab then we can write the result to
|
|
* the default ccache.
|
|
*/
|
|
if (handle->principal == NULL) {
|
|
kret = krb5_copy_principal(context, def_princ, &handle->principal);
|
|
if (kret)
|
|
goto end;
|
|
}
|
|
if (ccache != NULL)
|
|
krb5_cc_close(context, ccache);
|
|
ccache = def_ccache;
|
|
def_ccache = NULL;
|
|
if (lifetime > 0)
|
|
goto found;
|
|
/* else we fall through and try using a keytab */
|
|
}
|
|
|
|
try_keytab:
|
|
if (handle->principal == NULL) {
|
|
/* We need to know what client principal to use */
|
|
kret = krb5_get_default_principal(context, &handle->principal);
|
|
if (kret)
|
|
goto end;
|
|
}
|
|
kret = get_client_keytab(context, cred_store, handle->principal, &keytab);
|
|
if (kret)
|
|
goto end;
|
|
|
|
kret = krb5_get_init_creds_opt_alloc(context, &opt);
|
|
if (kret)
|
|
goto end;
|
|
krb5_timeofday(context, &now);
|
|
kret = krb5_get_init_creds_keytab(context, &cred, handle->principal,
|
|
keytab, 0, NULL, opt);
|
|
krb5_get_init_creds_opt_free(context, opt);
|
|
if (kret)
|
|
goto end;
|
|
|
|
/*
|
|
* We got a credential with a keytab. Save it if we can.
|
|
*/
|
|
if (ccache == NULL) {
|
|
/*
|
|
* There's no ccache we can overwrite with the credentials we acquired
|
|
* with a keytab. We'll use a MEMORY ccache then.
|
|
*
|
|
* Note that an application that falls into this repeatedly will do an
|
|
* AS exchange every time it acquires a credential handle. Hopefully
|
|
* this doesn't happen much. A workaround is to kinit -k once so that
|
|
* we always re-initialize the matched/default ccache here. I.e., once
|
|
* there's a FILE/DIR ccache, we'll keep it frash automatically if we
|
|
* have a keytab, but if there's no FILE/DIR ccache, then we'll
|
|
* get a fresh credential *every* time we're asked.
|
|
*/
|
|
kret = krb5_cc_new_unique(context, krb5_cc_type_memory, NULL, &ccache);
|
|
if (kret)
|
|
goto end;
|
|
handle->cred_flags |= GSS_CF_DESTROY_CRED_ON_RELEASE;
|
|
} /* else we'll re-initialize whichever ccache we matched above */
|
|
|
|
kret = krb5_cc_initialize(context, ccache, cred.client);
|
|
if (kret)
|
|
goto end;
|
|
kret = krb5_cc_store_cred(context, ccache, &cred);
|
|
if (kret)
|
|
goto end;
|
|
|
|
found:
|
|
assert(handle->principal != NULL);
|
|
ret = __gsskrb5_ccache_lifetime(minor_status, context, ccache,
|
|
handle->principal, &left);
|
|
if (ret != GSS_S_COMPLETE)
|
|
goto end;
|
|
handle->endtime = now + left;
|
|
handle->ccache = ccache;
|
|
ccache = NULL;
|
|
ret = GSS_S_COMPLETE;
|
|
kret = 0;
|
|
|
|
end:
|
|
if (ccache != NULL) {
|
|
if ((handle->cred_flags & GSS_CF_DESTROY_CRED_ON_RELEASE) != 0)
|
|
krb5_cc_destroy(context, ccache);
|
|
else
|
|
krb5_cc_close(context, ccache);
|
|
}
|
|
if (def_ccache != NULL)
|
|
krb5_cc_close(context, def_ccache);
|
|
if (cred.client != NULL)
|
|
krb5_free_cred_contents(context, &cred);
|
|
if (def_princ != NULL)
|
|
krb5_free_principal(context, def_princ);
|
|
if (keytab != NULL)
|
|
krb5_kt_close(context, keytab);
|
|
if (ret != GSS_S_COMPLETE && kret != 0)
|
|
*minor_status = kret;
|
|
return (ret);
|
|
}
|
|
|
|
static OM_uint32
|
|
acquire_acceptor_cred(OM_uint32 * minor_status,
|
|
krb5_context context,
|
|
OM_uint32 time_req,
|
|
gss_OID_set desired_mechs,
|
|
gss_cred_usage_t cred_usage,
|
|
gss_const_key_value_set_t cred_store,
|
|
gsskrb5_cred handle)
|
|
{
|
|
OM_uint32 ret;
|
|
krb5_error_code kret;
|
|
|
|
ret = GSS_S_FAILURE;
|
|
|
|
kret = get_system_keytab(context, cred_store, &handle->keytab);
|
|
if (kret)
|
|
goto end;
|
|
|
|
/* check that the requested principal exists in the keytab */
|
|
if (handle->principal) {
|
|
krb5_keytab_entry entry;
|
|
|
|
kret = krb5_kt_get_entry(context, handle->keytab,
|
|
handle->principal, 0, 0, &entry);
|
|
if (kret)
|
|
goto end;
|
|
krb5_kt_free_entry(context, &entry);
|
|
ret = GSS_S_COMPLETE;
|
|
} else {
|
|
/*
|
|
* Check if there is at least one entry in the keytab before
|
|
* declaring it as an useful keytab.
|
|
*/
|
|
krb5_keytab_entry tmp;
|
|
krb5_kt_cursor c;
|
|
|
|
kret = krb5_kt_start_seq_get (context, handle->keytab, &c);
|
|
if (kret)
|
|
goto end;
|
|
if (krb5_kt_next_entry(context, handle->keytab, &tmp, &c) == 0) {
|
|
krb5_kt_free_entry(context, &tmp);
|
|
ret = GSS_S_COMPLETE; /* ok found one entry */
|
|
}
|
|
krb5_kt_end_seq_get (context, handle->keytab, &c);
|
|
}
|
|
end:
|
|
if (ret != GSS_S_COMPLETE) {
|
|
if (handle->keytab != NULL)
|
|
krb5_kt_close(context, handle->keytab);
|
|
if (kret != 0) {
|
|
*minor_status = kret;
|
|
}
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
|
|
OM_uint32 GSSAPI_CALLCONV _gsskrb5_acquire_cred_from
|
|
(OM_uint32 * minor_status,
|
|
gss_const_name_t desired_name,
|
|
OM_uint32 time_req,
|
|
gss_OID_set desired_mechs,
|
|
gss_cred_usage_t cred_usage,
|
|
gss_const_key_value_set_t cred_store,
|
|
gss_cred_id_t * output_cred_handle,
|
|
gss_OID_set *actual_mechs,
|
|
OM_uint32 *time_rec
|
|
)
|
|
{
|
|
krb5_context context;
|
|
gsskrb5_cred handle;
|
|
OM_uint32 ret;
|
|
const char *password = NULL;
|
|
|
|
if (desired_mechs) {
|
|
int present = 0;
|
|
|
|
ret = gss_test_oid_set_member(minor_status, GSS_KRB5_MECHANISM,
|
|
desired_mechs, &present);
|
|
if (ret)
|
|
return ret;
|
|
if (!present) {
|
|
*minor_status = 0;
|
|
return GSS_S_BAD_MECH;
|
|
}
|
|
}
|
|
|
|
cred_usage &= GSS_C_OPTION_MASK;
|
|
|
|
if (cred_usage != GSS_C_ACCEPT && cred_usage != GSS_C_INITIATE &&
|
|
cred_usage != GSS_C_BOTH) {
|
|
*minor_status = GSS_KRB5_S_G_BAD_USAGE;
|
|
return GSS_S_FAILURE;
|
|
}
|
|
|
|
ret = __gsskrb5_cred_store_find(minor_status, cred_store,
|
|
"password", &password);
|
|
if (GSS_ERROR(ret))
|
|
return ret;
|
|
|
|
GSSAPI_KRB5_INIT(&context);
|
|
|
|
*output_cred_handle = GSS_C_NO_CREDENTIAL;
|
|
|
|
handle = calloc(1, sizeof(*handle));
|
|
if (handle == NULL) {
|
|
*minor_status = ENOMEM;
|
|
return GSS_S_FAILURE;
|
|
}
|
|
|
|
handle->destination_realm = NULL;
|
|
HEIMDAL_MUTEX_init(&handle->cred_id_mutex);
|
|
|
|
if (desired_name != GSS_C_NO_NAME) {
|
|
ret = _gsskrb5_canon_name(minor_status, context,
|
|
desired_name, &handle->principal);
|
|
if (ret) {
|
|
HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
|
|
free(handle);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (password) {
|
|
ret = acquire_cred_with_password(minor_status, context, password, time_req,
|
|
desired_mechs, cred_usage, cred_store, handle);
|
|
if (ret != GSS_S_COMPLETE) {
|
|
HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
|
|
krb5_free_principal(context, handle->principal);
|
|
free(handle);
|
|
return (ret);
|
|
}
|
|
} else {
|
|
/*
|
|
* Acquire a credential from the specified or background credential
|
|
* store (ccache, keytab).
|
|
*/
|
|
if (cred_usage == GSS_C_INITIATE || cred_usage == GSS_C_BOTH) {
|
|
ret = acquire_initiator_cred(minor_status, context, time_req,
|
|
desired_mechs, cred_usage,
|
|
cred_store, handle);
|
|
if (ret != GSS_S_COMPLETE) {
|
|
HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
|
|
krb5_free_principal(context, handle->principal);
|
|
free(handle);
|
|
return (ret);
|
|
}
|
|
}
|
|
if (cred_usage == GSS_C_ACCEPT || cred_usage == GSS_C_BOTH) {
|
|
ret = acquire_acceptor_cred(minor_status, context, time_req,
|
|
desired_mechs, cred_usage,
|
|
cred_store, handle);
|
|
if (ret != GSS_S_COMPLETE) {
|
|
HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
|
|
krb5_free_principal(context, handle->principal);
|
|
free(handle);
|
|
return (ret);
|
|
}
|
|
}
|
|
}
|
|
ret = gss_create_empty_oid_set(minor_status, &handle->mechanisms);
|
|
if (ret == GSS_S_COMPLETE)
|
|
ret = gss_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM,
|
|
&handle->mechanisms);
|
|
handle->usage = cred_usage;
|
|
if (ret == GSS_S_COMPLETE)
|
|
ret = _gsskrb5_inquire_cred(minor_status, (gss_cred_id_t)handle,
|
|
NULL, time_rec, NULL, actual_mechs);
|
|
if (ret != GSS_S_COMPLETE) {
|
|
if (handle->mechanisms != NULL)
|
|
gss_release_oid_set(NULL, &handle->mechanisms);
|
|
HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
|
|
krb5_free_principal(context, handle->principal);
|
|
free(handle);
|
|
return (ret);
|
|
}
|
|
*minor_status = 0;
|
|
*output_cred_handle = (gss_cred_id_t)handle;
|
|
return (GSS_S_COMPLETE);
|
|
}
|