/*
* Copyright (c) 2005, PADL Software Pty Ltd.
* All rights reserved.
*
* Portions Copyright (c) 2009 Apple Inc. 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 PADL Software 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 PADL SOFTWARE 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 PADL SOFTWARE 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 "krb5_locl.h"
#ifdef HAVE_KCM
/*
* Client library for Kerberos Credentials Manager (KCM) daemon
*/
#include "kcm.h"
#include <heim-ipc.h>
static krb5_error_code
kcm_set_kdc_offset(krb5_context, krb5_ccache, krb5_deltat);
static const char *kcm_ipc_name = "ANY:org.h5l.kcm";
typedef struct krb5_kcmcache {
char *name;
} krb5_kcmcache;
typedef struct krb5_kcm_cursor {
unsigned long offset;
unsigned long length;
kcmuuid_t *uuids;
} *krb5_kcm_cursor;
#define KCMCACHE(X) ((krb5_kcmcache *)(X)->data.data)
#define CACHENAME(X) (KCMCACHE(X)->name)
#define KCMCURSOR(C) ((krb5_kcm_cursor)(C))
static HEIMDAL_MUTEX kcm_mutex = HEIMDAL_MUTEX_INITIALIZER;
static heim_ipc kcm_ipc = NULL;
static krb5_error_code
kcm_send_request(krb5_context context,
krb5_storage *request,
krb5_data *response_data)
{
krb5_error_code ret = 0;
krb5_data request_data;
HEIMDAL_MUTEX_lock(&kcm_mutex);
if (kcm_ipc == NULL)
ret = heim_ipc_init_context(kcm_ipc_name, &kcm_ipc);
HEIMDAL_MUTEX_unlock(&kcm_mutex);
if (ret)
return KRB5_CC_NOSUPP;
ret = krb5_storage_to_data(request, &request_data);
if (ret) {
krb5_clear_error_message(context);
return KRB5_CC_NOMEM;
}
ret = heim_ipc_call(kcm_ipc, &request_data, response_data, NULL);
krb5_data_free(&request_data);
if (ret) {
krb5_clear_error_message(context);
ret = KRB5_CC_NOSUPP;
}
return ret;
}
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_kcm_storage_request(krb5_context context,
uint16_t opcode,
krb5_storage **storage_p)
{
krb5_storage *sp;
krb5_error_code ret;
*storage_p = NULL;
sp = krb5_storage_emem();
if (sp == NULL) {
krb5_set_error_message(context, KRB5_CC_NOMEM, N_("malloc: out of memory", ""));
return KRB5_CC_NOMEM;
}
/* Send MAJOR | VERSION | OPCODE */
ret = krb5_store_int8(sp, KCM_PROTOCOL_VERSION_MAJOR);
if (ret)
goto fail;
ret = krb5_store_int8(sp, KCM_PROTOCOL_VERSION_MINOR);
if (ret)
goto fail;
ret = krb5_store_int16(sp, opcode);
if (ret)
goto fail;
*storage_p = sp;
fail:
if (ret) {
krb5_set_error_message(context, ret,
N_("Failed to encode KCM request", ""));
krb5_storage_free(sp);
}
return ret;
}
static krb5_error_code
kcm_alloc(krb5_context context, const char *name, krb5_ccache *id)
{
krb5_kcmcache *k;
k = malloc(sizeof(*k));
if (k == NULL) {
krb5_set_error_message(context, KRB5_CC_NOMEM,
N_("malloc: out of memory", ""));
return KRB5_CC_NOMEM;
}
if (name != NULL) {
k->name = strdup(name);
if (k->name == NULL) {
free(k);
krb5_set_error_message(context, KRB5_CC_NOMEM,
N_("malloc: out of memory", ""));
return KRB5_CC_NOMEM;
}
} else
k->name = NULL;
(*id)->data.data = k;
(*id)->data.length = sizeof(*k);
return 0;
}
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_kcm_call(krb5_context context,
krb5_storage *request,
krb5_storage **response_p,
krb5_data *response_data_p)
{
krb5_data response_data;
krb5_error_code ret;
int32_t status;
krb5_storage *response;
if (response_p != NULL)
*response_p = NULL;
krb5_data_zero(&response_data);
ret = kcm_send_request(context, request, &response_data);
if (ret)
return ret;
response = krb5_storage_from_data(&response_data);
if (response == NULL) {
krb5_data_free(&response_data);
return KRB5_CC_IO;
}
ret = krb5_ret_int32(response, &status);
if (ret) {
krb5_storage_free(response);
krb5_data_free(&response_data);
return KRB5_CC_FORMAT;
}
if (status) {
krb5_storage_free(response);
krb5_data_free(&response_data);
return status;
}
if (response_p != NULL) {
*response_data_p = response_data;
*response_p = response;
return 0;
}
krb5_storage_free(response);
krb5_data_free(&response_data);
return 0;
}
static void
kcm_free(krb5_context context, krb5_ccache *id)
{
krb5_kcmcache *k = KCMCACHE(*id);
if (k != NULL) {
if (k->name != NULL)
free(k->name);
memset(k, 0, sizeof(*k));
krb5_data_free(&(*id)->data);
}
}
static const char *
kcm_get_name(krb5_context context,
krb5_ccache id)
{
return CACHENAME(id);
}
static krb5_error_code
kcm_resolve(krb5_context context, krb5_ccache *id, const char *res)
{
return kcm_alloc(context, res, id);
}
/*
* Request:
*
* Response:
* NameZ
*/
static krb5_error_code
kcm_gen_new(krb5_context context, krb5_ccache *id)
{
krb5_kcmcache *k;
krb5_error_code ret;
krb5_storage *request, *response;
krb5_data response_data;
ret = kcm_alloc(context, NULL, id);
if (ret)
return ret;
k = KCMCACHE(*id);
ret = krb5_kcm_storage_request(context, KCM_OP_GEN_NEW, &request);
if (ret) {
kcm_free(context, id);
return ret;
}
ret = krb5_kcm_call(context, request, &response, &response_data);
if (ret) {
krb5_storage_free(request);
kcm_free(context, id);
return ret;
}
ret = krb5_ret_stringz(response, &k->name);
if (ret)
ret = KRB5_CC_IO;
krb5_storage_free(request);
krb5_storage_free(response);
krb5_data_free(&response_data);
if (ret)
kcm_free(context, id);
return ret;
}
/*
* Request:
* NameZ
* Principal
*
* Response:
*
*/
static krb5_error_code
kcm_initialize(krb5_context context,
krb5_ccache id,
krb5_principal primary_principal)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_INITIALIZE, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_principal(request, primary_principal);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
if (context->kdc_sec_offset)
kcm_set_kdc_offset(context, id, context->kdc_sec_offset);
return ret;
}
static krb5_error_code
kcm_close(krb5_context context,
krb5_ccache id)
{
kcm_free(context, &id);
return 0;
}
/*
* Request:
* NameZ
*
* Response:
*
*/
static krb5_error_code
kcm_destroy(krb5_context context,
krb5_ccache id)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_DESTROY, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
/*
* Request:
* NameZ
* Creds
*
* Response:
*
*/
static krb5_error_code
kcm_store_cred(krb5_context context,
krb5_ccache id,
krb5_creds *creds)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_STORE, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_creds(request, creds);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
#if 0
/*
* Request:
* NameZ
* WhichFields
* MatchCreds
*
* Response:
* Creds
*
*/
static krb5_error_code
kcm_retrieve(krb5_context context,
krb5_ccache id,
krb5_flags which,
const krb5_creds *mcred,
krb5_creds *creds)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request, *response;
krb5_data response_data;
ret = krb5_kcm_storage_request(context, KCM_OP_RETRIEVE, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_int32(request, which);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_creds_tag(request, rk_UNCONST(mcred));
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, &response, &response_data);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_ret_creds(response, creds);
if (ret)
ret = KRB5_CC_IO;
krb5_storage_free(request);
krb5_storage_free(response);
krb5_data_free(&response_data);
return ret;
}
#endif
/*
* Request:
* NameZ
*
* Response:
* Principal
*/
static krb5_error_code
kcm_get_principal(krb5_context context,
krb5_ccache id,
krb5_principal *principal)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request, *response;
krb5_data response_data;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_PRINCIPAL, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, &response, &response_data);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_ret_principal(response, principal);
if (ret)
ret = KRB5_CC_IO;
krb5_storage_free(request);
krb5_storage_free(response);
krb5_data_free(&response_data);
return ret;
}
/*
* Request:
* NameZ
*
* Response:
* Cursor
*
*/
static krb5_error_code
kcm_get_first (krb5_context context,
krb5_ccache id,
krb5_cc_cursor *cursor)
{
krb5_error_code ret;
krb5_kcm_cursor c;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request, *response;
krb5_data response_data;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_CRED_UUID_LIST, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, &response, &response_data);
krb5_storage_free(request);
if (ret)
return ret;
c = calloc(1, sizeof(*c));
if (c == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret,
N_("malloc: out of memory", ""));
return ret;
}
while (1) {
ssize_t sret;
kcmuuid_t uuid;
void *ptr;
sret = krb5_storage_read(response, &uuid, sizeof(uuid));
if (sret == 0) {
ret = 0;
break;
} else if (sret != sizeof(uuid)) {
ret = EINVAL;
break;
}
ptr = realloc(c->uuids, sizeof(c->uuids[0]) * (c->length + 1));
if (ptr == NULL) {
free(c->uuids);
free(c);
krb5_set_error_message(context, ENOMEM,
N_("malloc: out of memory", ""));
return ENOMEM;
}
c->uuids = ptr;
memcpy(&c->uuids[c->length], &uuid, sizeof(uuid));
c->length += 1;
}
krb5_storage_free(response);
krb5_data_free(&response_data);
if (ret) {
free(c->uuids);
free(c);
return ret;
}
*cursor = c;
return 0;
}
/*
* Request:
* NameZ
* Cursor
*
* Response:
* Creds
*/
static krb5_error_code
kcm_get_next (krb5_context context,
krb5_ccache id,
krb5_cc_cursor *cursor,
krb5_creds *creds)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_kcm_cursor c = KCMCURSOR(*cursor);
krb5_storage *request, *response;
krb5_data response_data;
ssize_t sret;
again:
if (c->offset >= c->length)
return KRB5_CC_END;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_CRED_BY_UUID, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
sret = krb5_storage_write(request,
&c->uuids[c->offset],
sizeof(c->uuids[c->offset]));
c->offset++;
if (sret != sizeof(c->uuids[c->offset])) {
krb5_storage_free(request);
krb5_clear_error_message(context);
return ENOMEM;
}
ret = krb5_kcm_call(context, request, &response, &response_data);
krb5_storage_free(request);
if (ret == KRB5_CC_END) {
goto again;
}
ret = krb5_ret_creds(response, creds);
if (ret)
ret = KRB5_CC_IO;
krb5_storage_free(response);
krb5_data_free(&response_data);
return ret;
}
/*
* Request:
* NameZ
* Cursor
*
* Response:
*
*/
static krb5_error_code
kcm_end_get (krb5_context context,
krb5_ccache id,
krb5_cc_cursor *cursor)
{
krb5_kcm_cursor c = KCMCURSOR(*cursor);
free(c->uuids);
free(c);
*cursor = NULL;
return 0;
}
/*
* Request:
* NameZ
* WhichFields
* MatchCreds
*
* Response:
*
*/
static krb5_error_code
kcm_remove_cred(krb5_context context,
krb5_ccache id,
krb5_flags which,
krb5_creds *cred)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_REMOVE_CRED, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_int32(request, which);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_creds_tag(request, cred);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
static krb5_error_code
kcm_set_flags(krb5_context context,
krb5_ccache id,
krb5_flags flags)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_SET_FLAGS, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_int32(request, flags);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
static int
kcm_get_version(krb5_context context,
krb5_ccache id)
{
return 0;
}
/*
* Send nothing
* get back list of uuids
*/
static krb5_error_code
kcm_get_cache_first(krb5_context context, krb5_cc_cursor *cursor)
{
krb5_error_code ret;
krb5_kcm_cursor c;
krb5_storage *request, *response;
krb5_data response_data;
*cursor = NULL;
c = calloc(1, sizeof(*c));
if (c == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret,
N_("malloc: out of memory", ""));
goto out;
}
ret = krb5_kcm_storage_request(context, KCM_OP_GET_CACHE_UUID_LIST, &request);
if (ret)
goto out;
ret = krb5_kcm_call(context, request, &response, &response_data);
krb5_storage_free(request);
if (ret)
goto out;
while (1) {
ssize_t sret;
kcmuuid_t uuid;
void *ptr;
sret = krb5_storage_read(response, &uuid, sizeof(uuid));
if (sret == 0) {
ret = 0;
break;
} else if (sret != sizeof(uuid)) {
ret = EINVAL;
goto out;
}
ptr = realloc(c->uuids, sizeof(c->uuids[0]) * (c->length + 1));
if (ptr == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret,
N_("malloc: out of memory", ""));
goto out;
}
c->uuids = ptr;
memcpy(&c->uuids[c->length], &uuid, sizeof(uuid));
c->length += 1;
}
krb5_storage_free(response);
krb5_data_free(&response_data);
out:
if (ret && c) {
free(c->uuids);
free(c);
} else
*cursor = c;
return ret;
}
/*
* Send uuid
* Recv cache name
*/
static krb5_error_code
kcm_get_cache_next(krb5_context context, krb5_cc_cursor cursor, const krb5_cc_ops *ops, krb5_ccache *id)
{
krb5_error_code ret;
krb5_kcm_cursor c = KCMCURSOR(cursor);
krb5_storage *request, *response;
krb5_data response_data;
ssize_t sret;
char *name;
*id = NULL;
again:
if (c->offset >= c->length)
return KRB5_CC_END;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_CACHE_BY_UUID, &request);
if (ret)
return ret;
sret = krb5_storage_write(request,
&c->uuids[c->offset],
sizeof(c->uuids[c->offset]));
c->offset++;
if (sret != sizeof(c->uuids[c->offset])) {
krb5_storage_free(request);
krb5_clear_error_message(context);
return ENOMEM;
}
ret = krb5_kcm_call(context, request, &response, &response_data);
krb5_storage_free(request);
if (ret == KRB5_CC_END)
goto again;
ret = krb5_ret_stringz(response, &name);
krb5_storage_free(response);
krb5_data_free(&response_data);
if (ret == 0) {
ret = _krb5_cc_allocate(context, ops, id);
if (ret == 0)
ret = kcm_alloc(context, name, id);
krb5_xfree(name);
}
return ret;
}
static krb5_error_code
kcm_get_cache_next_kcm(krb5_context context, krb5_cc_cursor cursor, krb5_ccache *id)
{
#ifndef KCM_IS_API_CACHE
return kcm_get_cache_next(context, cursor, &krb5_kcm_ops, id);
#else
return KRB5_CC_END;
#endif
}
static krb5_error_code
kcm_get_cache_next_api(krb5_context context, krb5_cc_cursor cursor, krb5_ccache *id)
{
return kcm_get_cache_next(context, cursor, &krb5_akcm_ops, id);
}
static krb5_error_code
kcm_end_cache_get(krb5_context context, krb5_cc_cursor cursor)
{
krb5_kcm_cursor c = KCMCURSOR(cursor);
free(c->uuids);
free(c);
return 0;
}
static krb5_error_code
kcm_move(krb5_context context, krb5_ccache from, krb5_ccache to)
{
krb5_error_code ret;
krb5_kcmcache *oldk = KCMCACHE(from);
krb5_kcmcache *newk = KCMCACHE(to);
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_MOVE_CACHE, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, oldk->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_stringz(request, newk->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
static krb5_error_code
kcm_get_default_name(krb5_context context, const krb5_cc_ops *ops,
const char *defstr, char **str)
{
krb5_error_code ret;
krb5_storage *request, *response;
krb5_data response_data;
char *name;
*str = NULL;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_DEFAULT_CACHE, &request);
if (ret)
return ret;
ret = krb5_kcm_call(context, request, &response, &response_data);
krb5_storage_free(request);
if (ret)
return _krb5_expand_default_cc_name(context, defstr, str);
ret = krb5_ret_stringz(response, &name);
krb5_storage_free(response);
krb5_data_free(&response_data);
if (ret)
return ret;
asprintf(str, "%s:%s", ops->prefix, name);
free(name);
if (str == NULL)
return ENOMEM;
return 0;
}
static krb5_error_code
kcm_get_default_name_api(krb5_context context, char **str)
{
return kcm_get_default_name(context, &krb5_akcm_ops,
KRB5_DEFAULT_CCNAME_KCM_API, str);
}
static krb5_error_code
kcm_get_default_name_kcm(krb5_context context, char **str)
{
return kcm_get_default_name(context, &krb5_kcm_ops,
KRB5_DEFAULT_CCNAME_KCM_KCM, str);
}
static krb5_error_code
kcm_set_default(krb5_context context, krb5_ccache id)
{
krb5_error_code ret;
krb5_storage *request;
krb5_kcmcache *k = KCMCACHE(id);
ret = krb5_kcm_storage_request(context, KCM_OP_SET_DEFAULT_CACHE, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
static krb5_error_code
kcm_lastchange(krb5_context context, krb5_ccache id, krb5_timestamp *mtime)
{
*mtime = time(NULL);
return 0;
}
static krb5_error_code
kcm_set_kdc_offset(krb5_context context, krb5_ccache id, krb5_deltat kdc_offset)
{
krb5_kcmcache *k = KCMCACHE(id);
krb5_error_code ret;
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_SET_KDC_OFFSET, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_int32(request, kdc_offset);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
static krb5_error_code
kcm_get_kdc_offset(krb5_context context, krb5_ccache id, krb5_deltat *kdc_offset)
{
krb5_kcmcache *k = KCMCACHE(id);
krb5_error_code ret;
krb5_storage *request, *response;
krb5_data response_data;
int32_t offset;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_KDC_OFFSET, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, &response, &response_data);
krb5_storage_free(request);
if (ret)
return ret;
ret = krb5_ret_int32(response, &offset);
krb5_storage_free(response);
krb5_data_free(&response_data);
if (ret)
return ret;
*kdc_offset = offset;
return 0;
}
/**
* Variable containing the KCM based credential cache implemention.
*
* @ingroup krb5_ccache
*/
KRB5_LIB_VARIABLE const krb5_cc_ops krb5_kcm_ops = {
KRB5_CC_OPS_VERSION,
"KCM",
kcm_get_name,
kcm_resolve,
kcm_gen_new,
kcm_initialize,
kcm_destroy,
kcm_close,
kcm_store_cred,
NULL /* kcm_retrieve */,
kcm_get_principal,
kcm_get_first,
kcm_get_next,
kcm_end_get,
kcm_remove_cred,
kcm_set_flags,
kcm_get_version,
kcm_get_cache_first,
kcm_get_cache_next_kcm,
kcm_end_cache_get,
kcm_move,
kcm_get_default_name_kcm,
kcm_set_default,
kcm_lastchange,
kcm_set_kdc_offset,
kcm_get_kdc_offset
};
KRB5_LIB_VARIABLE const krb5_cc_ops krb5_akcm_ops = {
KRB5_CC_OPS_VERSION,
"API",
kcm_get_name,
kcm_resolve,
kcm_gen_new,
kcm_initialize,
kcm_destroy,
kcm_close,
kcm_store_cred,
NULL /* kcm_retrieve */,
kcm_get_principal,
kcm_get_first,
kcm_get_next,
kcm_end_get,
kcm_remove_cred,
kcm_set_flags,
kcm_get_version,
kcm_get_cache_first,
kcm_get_cache_next_api,
kcm_end_cache_get,
kcm_move,
kcm_get_default_name_api,
kcm_set_default,
kcm_lastchange,
NULL,
NULL
};
KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
_krb5_kcm_is_running(krb5_context context)
{
krb5_error_code ret;
krb5_ccache_data ccdata;
krb5_ccache id = &ccdata;
krb5_boolean running;
ret = kcm_alloc(context, NULL, &id);
if (ret)
return 0;
running = (_krb5_kcm_noop(context, id) == 0);
kcm_free(context, &id);
return running;
}
/*
* Request:
*
* Response:
*
*/
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
_krb5_kcm_noop(krb5_context context,
krb5_ccache id)
{
krb5_error_code ret;
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_NOOP, &request);
if (ret)
return ret;
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
/*
* Request:
* NameZ
* ServerPrincipalPresent
* ServerPrincipal OPTIONAL
* Key
*
* Repsonse:
*
*/
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
_krb5_kcm_get_initial_ticket(krb5_context context,
krb5_ccache id,
krb5_principal server,
krb5_keyblock *key)
{
krb5_kcmcache *k = KCMCACHE(id);
krb5_error_code ret;
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_INITIAL_TICKET, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_int8(request, (server == NULL) ? 0 : 1);
if (ret) {
krb5_storage_free(request);
return ret;
}
if (server != NULL) {
ret = krb5_store_principal(request, server);
if (ret) {
krb5_storage_free(request);
return ret;
}
}
ret = krb5_store_keyblock(request, *key);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
/*
* Request:
* NameZ
* KDCFlags
* EncryptionType
* ServerPrincipal
*
* Repsonse:
*
*/
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
_krb5_kcm_get_ticket(krb5_context context,
krb5_ccache id,
krb5_kdc_flags flags,
krb5_enctype enctype,
krb5_principal server)
{
krb5_error_code ret;
krb5_kcmcache *k = KCMCACHE(id);
krb5_storage *request;
ret = krb5_kcm_storage_request(context, KCM_OP_GET_TICKET, &request);
if (ret)
return ret;
ret = krb5_store_stringz(request, k->name);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_int32(request, flags.i);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_int32(request, enctype);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_store_principal(request, server);
if (ret) {
krb5_storage_free(request);
return ret;
}
ret = krb5_kcm_call(context, request, NULL, NULL);
krb5_storage_free(request);
return ret;
}
#endif /* HAVE_KCM */